Cause And Effect Of Lung Cancer - 1612 Words

become emphysema, there is a also statistics that the person will pass away within five years with a probability of forty to sixty percent. Furthermore, it is said that the possibility that he will live in ten years is about forty percent. In addition, since emphysema is said to be one of the causes of lung cancer, it can be said that smoking is also related to lung cancer. As is well known, currently, there are no effective treatment for cancer. Smoking habit is the main cause of lung cancer. The probability of a smoker becoming lung cancer is said to be about ten times more than that of a non-smoker. Also, smoking hurts their own DNA, that is, the risk of lung cancer extends to offspring. There may be people who think smoking cessation†¦show more content†¦In other words, if smokers do not quit it, they will keep bothering other people forever. For example, secondhand smoking is a main bad effect of smoking for people who do not smoke. Secondhand smoking is the condition w hich non smokers are the same as smokers in spite of the fact that they do not smoke because the people around them smoke cigarettes. To put it another way, even people who do not smoke are given some bad effects because of sidestream smoke and secondhand smoking. This also affects pregnant women and babies. If pregnant women breath in cigarette smoke, their blood vessel contract, and blood circulation become bad. If their blood circulation become bad, their functions of placenta decline. Therefore, it might cause miscarriage and premature births. There are other effects on pregnant women and their children, so smokers have to be anxious about other people who do not smoke including pregnant women and children. Then, how can we reduce the risk to other people from secondhand smoke? Health Canada shows the following sentences. Cleaning or filtering the air, increased ventilation or segregated areas (non-smoking sections) cannot completely eliminate exposure to second-hand smoke nor t he health risks associated with this exposure.2 The only solution to protect non-smokers is to eliminate smoking in all enclosed spaces such as restaurants, homes, and automobiles.For women who smoke, quitting smoking before conception or earlyShow MoreRelatedLung Cancer : Causes And Effects1329 Words   |  6 PagesThe leading cause of cancer death for both men and women in the United States and worldwide is lung cancer. Lung cancer is responsible for thirty percent of cancer deaths in the United States. The deaths caused by breast cancer, colon cancer and prostate cancer combined do not add up to the deaths that lung cancer causes. In 2007, 158,683 people, 88,243 men and 70,354 women died from lung cancer in the United States (Eldridge, 2012). Out of the 158,683 people that died from lung cancer in 2007, 135Read MoreCause And Effect Of Lung Cancer Essay1334 Words   |  6 Pages Lung cancer is one of the most lethal cancer known throughout the world. The most common suspect of that is smoking, then what happens to the people who inhales the smokers’ smoke? Are they also at risk for developing lung cancer from being a victim? The answer to that right now is that secondhand smoke alone is just a risk factor, there are no evidence right now that currently show that secondhand smoke alone can cause lung cancer by itself. This means that we need to encourage studies that areRead MoreCause And Effect Of Lung Cancer985 Words   |  4 PagesIntroduction The second leading cause of death in the United States as of 1933 is cancer .During this period advancements took place in treatment of infectious diseases such as pneumonia and influenza. Cancer, in turn, took its place and is a chronic illness that has no known cure. There are many different types of cancer that affects different parts of the body but lung cancer is the leading cancer killer in the United States . Cancer of the lungs also known as pulmonary carcinoma is caused by aRead More lung cancer Essay1459 Words   |  6 Pagesnbsp;nbsp;nbsp;nbsp;nbsp;Lung cancer is the most common cancer-related cause of death among men and women. Lung cancer can be undetected for many years causing it to become more dangerous and possibly fatal. There is not cure for lung cancer or any cancer, but if detected in an early stage the lung cancer can be detected, treated, and hopefully terminated. There are many new and developing treatments being tested now that may save lives in the future. Through understanding what the lung cancer is, doctors canRead MoreEssay Smoking and Lung Cancer1540 Words   |  7 Pages Oscar Wilde had no idea that smoking caused lung cancer. Lung cancer is one of the most preventable diseases that exist, yet people continue to voluntarily put themselves at risk, and it still has tragic effects on the person and their family even though there are ways to treat it. The disease itself is categorized into two types, but both are eventually fatal. The cancer has several causes, but is mainly due to smoking. It has many numerous effects, both physical and emotional. However, there areRead MoreLung Cancer : What Causes It?1420 Words   |  6 PagesLung cancer is any type of cancer that begins in the lungs, although it is still considered lung cancer after it spreads to other parts of the body. Lung cancer is one of the most common cancers in the U.S. and worldwide. Forty percent of people will be diagnosed with lung cancer within their life span. Lung cancer, as with all cancers, is very complex, so the best way to comprehend it is to break it down into easily analyzed topics. The first topic that must be analyzed is cancer as a whole-whatRead Morelung cancer927 Words   |  4 Pagesï » ¿ Lung Cancer By Brayan Almora and Hector Aparicio Pedroza Ms. Powell, 7th Language Arts Problem – Solution Paper May 15, 2014 Lung Cancer Causes and Treatments Lung cancer is defined as abnormal cell tissue that forms in tissues of the lungs. It is estimated that there are 224,210 new cases every year, while the estimated deaths are numbered at 159,260 per year . There are several options of treatment and are as follows: Surgery, Chemotherapy, Radiation TherapyRead MoreThe Leading Causes Of Lung Cancer1350 Words   |  6 PagesCenter September 2, 2014 The Leading Causes of Lung Cancer State Standard: 6.4.A Cancer is a disease that plagues millions of people annually (â€Å"Lung†). Lung cancer develops when healthy cells in the lungs are compromised by chemicals, pathogens, or radiation (Henderson). In the early twentieth century, before cigarette smoking and toxic man-made air pollutants became more commonplace, lung cancer was relatively rare (Henderson). It is now the leading cause of cancer deaths worldwide, resulting in anRead MoreThe Effects of Smoking on the Body Essay748 Words   |  3 PagesThe Effects of Smoking on the Body Almost one third of the World’s population are smokers for one reason or another, appearance, reduce stress etc. However, I, and many others, find it very difficult to believe smoking can aid anyone’s appearance as it encourages early ageing, and I do not believe that any of the risks that smoking has is worth any amount of stress relief that it can provide. Cigarette smoking can have serious health effects on the human body. Read MoreHow The Lungs Are Responsible For Both Ventilation And Respiration888 Words   |  4 Pages 2014 â€Æ' The lungs are responsible for both ventilation and respiration. Ventilation is the mechanical act of bringing breath into the body and expelling it. Respiration is the detailed work of lung tissue, using the air brought into the body, making it available to the body through the highly vascular lung parenchyma. Lung cancer impacts both of these functions. To understand the disease, it is important to understand the causes of lung cancer, the types of lung cancer, lung cancer disease â€Å"staging†

The Psychological Development Of Children Who Have Been...

The Psychological Development of Children who have been Sexually Abused Crissie Adams Dixie State University Abstract The aim of this paper is to understand the effects of children who have been sexual abuse, and the affects it has with psychological disorders and attachment issues later in life. The issues that will be discussed will regard interpersonal problems and the effects of secure, avoidant, and anxious attachment styles among young child victims. The Psychological Development of Children who have been Sexually Abused Before we are born there is an attachment, a bond that forms between the mother and the child. From the moment we take our first breath into the world our parents tend to our†¦show more content†¦We often wonder what happens to a child who has been sexually, physically, and emotionally abused. What kind of psychological disorders do they develop? What kind of damage has been done to the brain for the child to then act out inappropriately? What kind of possible physiological disorders could the child then start to develop? We’ve seen that their relationships are affected in every stage of life. We are becoming more and more aware of a serious problem over the last several decades. The horrors of sexual abuse to children has been continuously gaining attention. Child sexual abuse is any sexual contact with a child through the use of force, threat, or deceit to secure the child’s participation, or any sexual contact with a child who is incapable of consenting by virtue of age, disability, or power (Finkelhor, 1990b). In a study done by Shapiro, Kaplow, Amays-Jackson and Dodge (2012), approximately 6% of children suffer some form of sexual abuse each year. A range of psychological problems are associated with children who have been sexually abused. They are also at a substantially increased risk of psychopathology (Molnar, Buka, Kessler, 2001) especially in posttraumatic stress disorder (PTSD). They also show signs of generalized anxiety, depression, dissociation, attention problems, aggressive behavior and conduct problems, and even suicidal behaviors and substance abuse. There is an extent to their well-being and everyday

Event Industry Free Essays

Tutor: Peter Haigh Event Industry Arsalan khan 21146310 Tutor: Peter Haigh Event Industry Arsalan khan 21146310 Critically discuss the negative and the positive impacts of the London Olympic Games from the perspective of all stakeholders, including the local community, the sponsors, the guests, the organisers, the volunteers and paid workers? Author: Arsalan Khan Module code: TH40009E Tutor: Peter HAIGH Module name: Event Industry Critically discuss the negative and the positive impacts of the London Olympic Games from the perspective of all stakeholders, including the local community, the sponsors, the guests, the organisers, the volunteers and paid workers? Author: Arsalan Khan Module code: TH40009E Tutor: Peter HAIGH Module name: Event Industry This essay will look and discuss the negative and the positive impact of the London Olympics from the perspective of the stakeholders as well as keeping the local community, sponsors, guests, organisers and workers in mind. The main stakeholders of the London Olympics are: * Customers * Athletes * Residences of Greater London * Sponsors * Tourists * Local business small/ medium sized * Large national businesses * International Business * Local councils of London * Mayor of London * Transport * Infrastructure * Emergency services * * Government Olympic bodies * DCMS * BOA * LOCOG * IOC * NOC * The Legacy company * Other part-taking countries * Economy Financial institutes Olympic Games are going to have a huge impact on London and the surrounding cities there are going to be an extra 4 million visitors this year, this will not only effect all areas and business but will push the infrastructure of London to its limits. It will require unprecedented planning measures and the input of several different government and intelligence agencies to ensure a safe and successful Olympics takes place. We will write a custom essay sample on Event Industry or any similar topic only for you Order Now Throughout London all employees will be stretched and may be preforming tasks which they may not originally been employed to do but as the Olympics come closer there will be an increase in demand for manpower in businesses as everyone prepares for the mega event of the year. Already many firms have cancelled leave during the Olympic times. Already emergency services are under criticism as they fail to meet the required manpower number s and alternative measures are being put in place for example the fire service is no longer providing full ire brigades instead smaller response unites will be deployed around the Olympics sites. Local council will be ideated with demands form their residences and special permits for business and licences, this will stretch the councils workers across the board, many workers may be working overtime to meet the demand of the busy period. This will be a turning point for the councils as this will increase businesses in the area and employers will pay busi ness rates, local councils in most areas of London will be finically better off. Most communities are involved as it comes to the run up to the Olympics and the legacy company is ensuring they stay involved after the games are over, when the host city was chosen and the work commenced communities and businesses at the east of London suffered months and months of carnage and when the games are finished they will be able to enjoy the faculties left behind. There are many negative points of the Olympics such as overcrowding, major risk due to political instability in other countries residents may feel they are at risk of attack from exterior sources. Mass funding will flood in to London from overseas business and the boom in the tourism industry this will encourage the well needed economic growth, employment will rise to its highest levels and drop back down after the Olympic games. The Olympic Games will encourage new and younger athletes to take part in the sports and carry on the games legacy. Bibliography Tassiopoulos, D (2010). Event Management. 3rd ed. Republic of South Africa: Print Communications. 186-248. How to cite Event Industry, Essay examples

Comparison of two love poems The Voice by Thomas Hardy and Twelve Songs by W H Auden Essay Example For Students

Comparison of two love poems The Voice by Thomas Hardy and Twelve Songs by W H Auden Essay Both poems are written with the same theme in mind, Love lost and love remembered; although they are quite different in the way the author has put across his ideas, feelings and emotions. The Voice, I would say is the more complex of the two poems and is about a man pining after a lost love, hallucinating that she has come back to him. He dwells on his memories of her and their relationship and believes that he can hear the sound of her voice calling to him. Even when he returns to reality, realising that he cannot regain her love for him, and that he must begin to emotionally move forward, he still believes she is there, calling to him. Twelve songs describes a woman who is mourning over the death of someone she loved greatly. It has no real storyline, and is just a description of how immense her love was for this lost love and how much grief the death of him has left her in. The title that Hardy has given to his poem gives it a slight mysterious edge. With no adjectives to describe what kind of voice it is, we let our imaginations run lose and so do not have a clear understanding of what the poem is going to be about. Audens title, you may first believe is more self explanatory, although when you read further into the poem you will realise that the title does not have much resemblance to the poem. With either poem, the title does not give you any indication that it is going to be about love lost or love remembered. Imagery has been used within both poems to set the scene or describe an object using carefully chosen words. Hardy has used it to describe vivid memory of his lost love. Such phrases as even to the original air-blue gown and Wind oozing thin through the thorn from norward are examples of the very descriptive imagery that Hardy uses. It is so defined that you feel as though you can see that air-blue gown right in front of your eyes and sense the wind oozing through the thorn bushes. You could be there watching all of these things happen as the author writes these chosen words. Auden however, uses more basic imagery to describe less complex events. Examples of this from the poem are let aeroplanes circle moaning overhead, scribbling on the sky the message He is Dead and let the traffic police wear black cotton gloves. They are both still forms of imagery however you dont know what is happening to the same amount of detail as in Hardys poem. For example, you know that the aeroplane is writing a message in the sky but you dont get to find out whether it was a clear blue sky, or a dull grey sky, it is just left to your imagination. This means that you cannot sense the events happening to as much details as in Hardys poem. Many language devices are used within both poems to add some kind of effect to the language used. This may be an emphasis or to make a description clearer and more realistic or it may be for some other reason that the poet wants to try to put across to the reader. One of these devices is alliteration, which Thomas Hardy uses a lot during The Voice. Examples of this are, Much missed, wan wistlessness and faltering forward. Hardy has used these phrases to give emphasis, exaggeration and enforcement to the phrases and the subjects in hand. Repetition of a letter or letter sound at the beginning of a sequence of words also links ideas, which has happened effectively in The Voice. Auden, however, uses no alliteration in Twelve Songs although this does not mean that emphasis on certain words and phrases has not been used. Auden has just used different language devices to put them into effect. .u3b35db6b3b80ca03241d3c29d9124ea2 , .u3b35db6b3b80ca03241d3c29d9124ea2 .postImageUrl , .u3b35db6b3b80ca03241d3c29d9124ea2 .centered-text-area { min-height: 80px; position: relative; } .u3b35db6b3b80ca03241d3c29d9124ea2 , .u3b35db6b3b80ca03241d3c29d9124ea2:hover , .u3b35db6b3b80ca03241d3c29d9124ea2:visited , .u3b35db6b3b80ca03241d3c29d9124ea2:active { border:0!important; } .u3b35db6b3b80ca03241d3c29d9124ea2 .clearfix:after { content: ""; display: table; clear: both; } .u3b35db6b3b80ca03241d3c29d9124ea2 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u3b35db6b3b80ca03241d3c29d9124ea2:active , .u3b35db6b3b80ca03241d3c29d9124ea2:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u3b35db6b3b80ca03241d3c29d9124ea2 .centered-text-area { width: 100%; position: relative ; } .u3b35db6b3b80ca03241d3c29d9124ea2 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u3b35db6b3b80ca03241d3c29d9124ea2 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u3b35db6b3b80ca03241d3c29d9124ea2 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u3b35db6b3b80ca03241d3c29d9124ea2:hover .ctaButton { background-color: #34495E!important; } .u3b35db6b3b80ca03241d3c29d9124ea2 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u3b35db6b3b80ca03241d3c29d9124ea2 .u3b35db6b3b80ca03241d3c29d9124ea2-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u3b35db6b3b80ca03241d3c29d9124ea2:after { content: ""; display: block; clear: both; } READ: Compare and Contrast the depiction of London in Wordsworth's Upon Westminster Bridge and Blake's London EssayThomas Hardy has also used an onomatopoeia in this piece of poetry as they add realism to the poem to make the reader feel as if they can hear the sounds that the characters within the poem can hear themselves. An example of this is wind oozing thin which suggests that the wind is eerie, flowing but hardly there. Again, Auden has not used any onomatopoeias in this poem. Another language device is repetition, which has been used in both poems to emphasise a particular phrase or event. Woman much missed, how you call to me, call to me is an example from The Voice of repetition that Hardy has used. This shows that a man is dwelling on the sound of her voice calling to him. An example from Twelve Songs is He was my North, my South, my East and West, My working week and my Sunday rest, My noon, my midnight, my talk, my song. This is putting emphasis on the fact that her lost love had meant everything to her and that she thought of him all the time. Both poems also contain rhyme. In The Voice, rhyme is present on every first and third line and on every second and fourth line. Thus giving each verse a flowing and constant rhythm. In Twelve Songs however, rhyme is used on every first and second line, and on every third and fourth line, which gives each verse a very firm but abrupt rhythm. Metaphors are another language device, which have been used in the voice. You being ever dissolved to wan wistlessness is an example of a metaphor from The Voice. She is not actually dissolving but it creates the effect that her love for her is dissolving in his memory. Auden has not used any noticeable metaphors in Twelve Songs. Also quite surprisingly, similies have not been used in either of the poems. Both of the poems have been written in first-person narrative, which adds a personal touch to both of the poems. Poems written in first-person narrative are generally more emotional than a poem written in third-person narrative, which is more effective and will seize the attention of the reader quicker and will also be more enjoyable to read. Both of the poems are similar to this effect. The overall structure of both of the poems are generally the same, with both poems containing four verses with four lines to each verse. What differs however, between the two poems is the sentence structure. The Voice as I have said previously, has a very flowing rhythm to it. The words chosen are often quite flowery and seem to roll off your tongue. Twelve Songs has a very sharp rhythm with short, crisp sentences. They contain many monosyllables and heavy words which add to the impact of the poem. Each verse is broken up into many times by the use of commas, giving a moments pause for thought before each action. After reading both of the poems through several times, I come off with a clearer understanding of Twelve Songs an the emotion of woman which Auden is trying to put across than of those in The Voice. Auden generally goes straight to the point rather than waffling around it, which is what I sometimes feel that Hardy is doing. There is evidence to believe that Twelve Songs is a more modern poem than The Voice with words such as telephone and aeroplane being used within the poem, both of which are fairly new inventions. To me, Twelve Songs seems to have that more modernised edge to it with Auden experimenting with use of words and rhythm. Who would ever think of pouring away the ocean and sweeping up the wood like Auden suggests, but it gives the poem an effect that the world has no use anymore with her lost love not being around, the world might as well not exist. An example of Audens experimenting with rhythm is as follows, I thought my love would last forever: I was wrong. With many previous lines having the same constant rhythm, this sudden change has a .ucd2083d47b32791a94e095bd7f0df4fa , .ucd2083d47b32791a94e095bd7f0df4fa .postImageUrl , .ucd2083d47b32791a94e095bd7f0df4fa .centered-text-area { min-height: 80px; position: relative; } .ucd2083d47b32791a94e095bd7f0df4fa , .ucd2083d47b32791a94e095bd7f0df4fa:hover , .ucd2083d47b32791a94e095bd7f0df4fa:visited , .ucd2083d47b32791a94e095bd7f0df4fa:active { border:0!important; } .ucd2083d47b32791a94e095bd7f0df4fa .clearfix:after { content: ""; display: table; clear: both; } .ucd2083d47b32791a94e095bd7f0df4fa { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ucd2083d47b32791a94e095bd7f0df4fa:active , .ucd2083d47b32791a94e095bd7f0df4fa:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ucd2083d47b32791a94e095bd7f0df4fa .centered-text-area { width: 100%; position: relative ; } .ucd2083d47b32791a94e095bd7f0df4fa .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ucd2083d47b32791a94e095bd7f0df4fa .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ucd2083d47b32791a94e095bd7f0df4fa .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ucd2083d47b32791a94e095bd7f0df4fa:hover .ctaButton { background-color: #34495E!important; } .ucd2083d47b32791a94e095bd7f0df4fa .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ucd2083d47b32791a94e095bd7f0df4fa .ucd2083d47b32791a94e095bd7f0df4fa-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ucd2083d47b32791a94e095bd7f0df4fa:after { content: ""; display: block; clear: both; } READ: The poem Brothers explores the relationship between two brothers Essaymassive impact on the poem. The three monosyllables and very heavy words being used at the end of the line go straight to the point and it hits you hard in the face! Also Twelve Songs opens and continues for some time with a demand with catches your eye and will keep the attention of the reader. An example of this is, Stop all the clocks, cut off the telephone. The poem is telling you to do something and you, as the reader feel that you should respond to that in some way. It also sets the atmosphere of how the poem is going to carry on and these demands add a great impact to the poem. The Voice on the other hand, has a much more dreamy atmosphere to it and you sense that it took place quite a while before the events in Twelve Songs happened. Phrases such as Original air-blue gown and Wan wistlessness give a slightly old-fashioned edge to the poem. The Voice has a sense of development within the poem that is not present in Twelve songs. The emotions and feelings of the man change throughout the poem giving the effect of time passing and the man aging. In conclusion I would say that I preferred Twelve songs although this does not mean that The Voice is not a successful love poem. Twelve Songs is based on a very basic theme that is described by using a explanation of everyday items that people can relate to easily to get the message across. It is less complex, easier to notice and understand the deeper meaning behind the poem. I found it more enjoyable to read than The Voice and the poem has a much lower standard of vocabulary than The Voice, which makes it much easier to read and determine. The Voice however a very detailed storyline behind the words that are written, which you could delve into for hours and keep finding out new things about the poem. It has a much deeper meaning than Twelve Songs giving the poem a very poetic atmospheric effect.

Solution to Land Pollution Essay Example

Solution to Land Pollution Paper Land pollution Land pollution is mainly caused by poor solid waste management. There are three answers to these environmental problems. YOU can Reduce, Reuse and Recycle. ; Reduction ; Reuse ; Recycle Reduction We can reduce the amount of waste that is produced by doing simple things like two-sided copying on paper and backyard composting. This will decrease the amount of waste that will be disposed of in landfills. The Government can raise awareness of the importance of reduction through campaigns and advertisements and encourage the public to participate actively in reduction strategies like waste exchange program. Reduction methods can have positive environmental impacts like conserving resources. [ Return TO TOP Another way to reduce the amount of waste produced is by reusing a product. We are reusing when we keep something and use them again for either the same or other purposes. When we go shopping at supermarkets, we can bring our own shopping bag to carry our groceries and cut down on he use of plastic bags. We can also bring our own lunchboxes to store our meals instead of disposing plastic containers after we use it. These are some simple ways that we can do to contribute. [ Return To Top ] Recycle Ever wondered where the can of coke, the bottle of lemon tea, or your homework goes to after being thrown into the bin? Well, in the process of recycling, waste materials are processed industrially and then reformed into new or similar products. We will write a custom essay sample on Solution to Land Pollution specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Solution to Land Pollution specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Solution to Land Pollution specifically for you FOR ONLY $16.38 $13.9/page Hire Writer This helps us to renew our limited resources, and at the same time conserve the environment! Some of the waste materials that can be recycled are used paper, newspapers, plastic and glass bottles and aluminum cans. We should throw these waste materials into the appropriate recycling bins whenever we can, instead of throwing it into the rubbish bin.

Financial Information System Essays

Financial Information System Essays Financial Information System Essay Financial Information System Essay It is one of the most modern, largest vertically integrated textile company in Pakistan. Insist Mills Ltd. Is amongst Pakistanis oldest and most respected institutions in the field of textile processing. Insist Apparel is a state of the art facility and was incepted in May 2007. Initially Insist Apparel used Data Flex for its operational and informational needs. This system was implemented for several years but, as the business was experiencing phenomenal growth, coupled with several inherent shortcomings of the system, the growing information needs of the company along with the technological advancement in the ERP field necessitated Nights move to a more sophisticated and advanced system. These reasons have been detailed as follows: Issues with initial system (Data flex): Obsolete: The version of Data flex that was being used at Insist Mills was out-dated and no further vendor support was available for it. Insist was expanding in terms of business and complexity. Thus they required greater support from their system which it was unable to provide. As there was no vendor support to modify the system as per their needs, they had no option else than to switch to an alternative with better vendor support. : Incapable of processing high volume of transactions efficiently: The expansion of Insist Mills resulted in a similar increase in transaction volume that needed processing. The Data flex system with its out dated technology was unable to efficiently handle huge volume of transactions. This resulted in operating in-efficiency and higher costs. The old system thus became the weak link that needed to be replaced in order to support the growth of Nights operations while allowing a greater operating efficiency. Non-centralized database: The initial Data Flex system had a non-centralized database thus each department at Insist Apparel had to maintain its own data leading to great deal of data attendance. Since each department had to update its data separately there were several sets of data being maintained and updating data was not an easy Job. Multiple versions of same data developed inconsistencies which resulted in loss of data integrity. Furthermore, it was not possible for departments to share data with each other, thus each department was effectively working in isolation. Batch Processing: Insist Apparel was competing in the international market for clients like Levies and Dockers. One of the compelling requirements of time was to give short lead times amidst its international competitors. This could not be achieved with the initial Data Flex system which was based on batch processing. There was a time lag between occurrence of business event and the correspondent transaction being processed. This means that the only time the master data was up-to-date was right after the processing has been completed. As soon as the next business event occurs, the master data are no longer up-to-date. This led to lack of proper information for decision making Choice of ERP system: While shifting to new ERP system Insist Group had three basic concerns; they wanted to have a centralized data base, real time transaction processing and a yester that could handle large volume of transactional data. They decided to switch to the Oracle ERP System since it could best cater to their informational needs with respect to the large volume of transactions and also provide the other features that were required, as mentioned above. Oracle ERP system could provide the following benefits to Insist: Better integration across departments Up-to-date database No processing lags caused by the system Better internal controls Improve customer service Reduced lead time Better management decisions Better inventory management Cheaper procurement. Lower costs. Transition Phase: Training Sessions: In order to move from Data Flex to Oracle, month long training sessions were conducted for the employees to train them to work on the oracle system. During this period, they were also made to work on dummy data in order to strengthen their command on the new system. After the conclusion of the training period, one-on-one sessions were carried out with the employees to check for any shortcomings and further build upon their learning. The company had to slightly modify their methods of operation in order to align them with the best practices as dictated by the Oracle yester. Modular Approach: A modular approach was undertaken for the implementation of the Oracle system. The system was installed on a department wise basis like Accounts, Purchase, Inventory, Human Resource and more. Within each department, internal controls were developed to ensure that the organization meets its objectives, such as system logins for users to avoid UN-authorized access. Furthermore, system was modified according to the needs of different units of Insist Mills. For example in Insist Apparel, keeping in mind its nature of business, demand gets generated automatically once bill of materials is prepared which is not a requirement for spinning , weaving or dyeing unit of Insist Mills. Running parallel systems: The older system was still operating in parallel to the new system so that business activities would not be affected. A centralized database was developed and data was transferred from the old system to the Oracle database. During the day, employees used to work on Data Flex and at the day end they transferred the whole days data to the Oracle database. Employees were required to put in extra hours for this purpose. Duration of transition phase: The entire changeover from Data Flex to Oracle consumed nearly 1. -2 years and is still undergoing minor development. For instance, the ERP system pertaining to Human Resource is still undergoing modifications to best meet the organizational needs. Problems Faced: Employee trainings: The employees were acquainted with Data Flex and in order to switch them over to the new system, trainings were conducted. This put on additional stress in terms of loss of time, business process efficiency and HRS costs. Downsizing: Dat a Flex required more manpower to operate the system in contrast to Oracle which squired fewer people. The firm had to downsize as there was excess manpower employed within the firm as per required by Oracle. The layoffs resulted in loss of morale with existing employees and many suffered from the survivor syndrome. Resistance from employees: The decision to upgrade to the new system was not warmly received by some of the employees as they had a thorough command on the previous system. Their ease with the existing system made them unreceptive to change and expressed their displeasure. As a result, they had to be motivated and educated to make the change successful. Information sequencing issues: Insist had a great deal of redundancy within its database. There were multiple versions of the same data stored. This has put on additional problems while transferring data into the new centralized database. They were unsure as to how to consolidate the different versions of data in the new database. Setting up wireless communication links: Successful implementation of Oracle required the set up of wireless routers across offices. This resulted in huge costs to establish the infrastructure that complemented the use of Oracle. Explanation of Entries of Control Matrix The purchase cycle is broadly classified into three sub-processes; purchase requisition, receipt of goods and payable. We have identified the following present controls and we will analyze how these controls meet the operational and informational goals: Pl- Automatic Notification of Inventory Falling Below Re-order Level: Effectiveness goal C: The ERP system is designed in a way that it automatically notifies the store dept. Whenever the inventory level falls below the re-order level thus ensuring the effectiveness of goal C which states that the inventory level should not fall below the re-order level. Efficient employment of resources: The ERP system automatically informs for inventory shortfalls thus eliminating the need on part of humans to physically check (count) for inventory levels. This leads to efficient employment of resources since no manpower and time is utilized for this purpose. PA- Pre-Formatted Screens For All Internal Documents: Efficient employment of resources: The internal documents in the purchase cycle are in the form of pre-formatted screens. Structured entry cells allow user to reduce the number of keystrokes and increase efficiency by displaying only the required information in a desired format to he user. Input Accuracy, Update Accuracy: Due to pre-formatted screens, once a particular field is filled, the cursor moves to the next field on the screen automatically, thus preventing the user from omitting any required data set. Incorrectly filled fields are rejected, hence reducing errors. *Wherever input accuracy or completeness is ensured, update accuracy and completeness are automatically ensured in ERP systems because update occurs in real-time as soon as something is input. PA- Compare input with master data and Automatic Population of Data: Efficient employment of resources: The automatic population of fields from the master data leads to lesser key strokes which improve the speed and productivity of data entry personnel. Input Validity: The automatic population of data from master data as the information passes through various stages is a testament to the fact that information is being accessed and added on different documents from existing records and those data establish authorization for the transaction. Input Accuracy Update Accuracy: Fewer key strokes and use of data called up from existing records reduce the possibility of errors. PA- Record Input: Automatic recording of input event data by system increases efficiency PA- Interactive Feedback Checks: Input Update completeness: Interactive feedback checks display to the user that the input has been accepted and hence ensures data completeness. PA- Online Approval by HOOD: Ensure security of resources: The Hoods approval at several stages during the purchase process ensures that the companys resources would not be misappropriated for any invalid purposes. Input validity: Hoods approval is required when a demand requisition/POP is being made and when the payable data is being processed. He only approves an event after verifying its Aladdin. Therefore the Hoods approval is proof of the validity of the event reflected in the document being approved. PA- Display Requisition to Relevant Purchase Person: Effectiveness goal A: They have assigned particular procurement items to specific purchase persons due to which they have developed expertise in purchase of those items. This helps to ensure that a vendor that will provide the best quality at the optimum price by the required delivery date (on favorable terms) will be selected. Efficient employment of resources: Automatic routing of only the relevant purchase requisitions to concerned researchers saves them from the trouble of finding the items that have been assigned to them for procurement from all the raised requisitions. PA- Key Purchase Terms in SSP: The authorized person selects the most favorable mode of purchase (Comparative Statement, LLC or Cash) which meets our effectiveness goal A. PA- Maintaining Approved Vendor Data: This allows the purchase personnel to quickly access the approved vendors in the database that they already dealt with and know their repute so they do not need to search for a vendor every time they need to buy a particular item. This saves time ND leads to efficiency. PA- Prepare Quotation Entry Form (Including Tallest 3 Vendors): Effectiveness goal A: While preparing quotation entry form, three relevant suppliers are shortlist and then they are asked to provide quotations. This short-listing of three suppliers out of many helps ensure effectiveness of goal A which states that finally only the vendor providing the best quality at the lowest price by promised delivery date should be selected. POI- Preparation and Manual approval of Comparative statement: Effectiveness Goal A: After receiving short-listed quotations, the HOOD compares the vendors in the imperative statement and selects the required vendor keeping in mind that the optimum combination of price and quality is being achieved. Pl 1- Preparation, Approval and Dispatch of POP by HOOD: The clerk brings the POP in the name of the selected vendor to the HOOD. The HOOD ensures that the POP is made in the name of the approved supplier by approving POP online. This ensures the selection of a vendor who will provide the best quality at the optimum price. Input Validity: Approval by the HOOD ensures the validity of the purchase order. PEP- Approval of Invoice by comparing with POP: Effectiveness Goal D: The invoice received from supplier is matched with the POP and then approved to ensure that correct payments are made to the relevant supplier. Input validity: By verifying from the master data that the invoice has been received against an actual POP, validity of invoice will be confirmed. By checking the approval on invoice, the possibility of entering invalid event data is reduced. Input Accuracy: By checking the approval on invoice, it is ensured that the amount on the invoice is accurate. As the master data is not being updated at this point, so update accuracy would not apply. PEP- Prepare copy for record keeping: Security of resources: Keeping records for transactions allows user to keep a track of the resources employed and this ensures the security of resources. PEP- Manual Comparison of Delivery Callahan with POP and Entering receiving data in gate office: Effectiveness Goal The gate person compares delivery Callahan with POP to ensure that the goods received are not different from the demanded goods and if that is the case, then he has the authority to reject them right at the gate. Input Validity: The gate person enters the amount of goods received in the system after matching it tit the POP which ensures that the goods being received are against a valid POP. Input Completeness and Update Completeness: After the delivery Callahan is compared with the POP, the gate person enters the quantity received into the system and prepares a gate pass which ensures that against each receipt there is an entry in the system. The master data is updated simultaneously with the input of receipt data. PEP- Counting of goods by receipt room when received and entering data in the system: Effectiveness Goal B: The receiving personnel counts the goods received ensuring that the correct amount f goods are being received. With the goods being in hand, the receiving person in the receipt room in a good position to ensure that the correct goods are received. The counting of goods ensures that the receipt room is aware of actual quantity of goods received and there is a less chance of goods being lost without coming into the knowledge of authorities. Input Validity, Input and Update Accuracy, Input and Update Completeness: After physically counting the goods, the data is being entered into the system so the data will precisely reflect the actual delivery making it accurate ND valid. For every receipt, a GIN and GRIN are prepared which ensures input and update completeness. PEP- Acceptance of goods after signing of GRIN at store: Effectiveness goal B: The signing of GRIN ensures that the right quantities of goods are stored at the store as per the amount stated in the GRIN. Security of resources: Signing of GRIN serves as a final check that the amount stored at the warehouse is the same as the quantity received in receipt room. PEP- Update inventory levels after storage or issuance against relevant demand number: Input Validity: As inventory is being entered after physically receiving goods against relevant demand number, so the input data is valid. Input Accuracy, Update Accuracy: After physical receipt of inventory, entering data in system ensures that there is less chance of error and that the inventory data is accurate. The master data is simultaneously updated. PEP- Attaching approved invoice with D. C, Gate Pass and GRIN: Effectiveness Goal D: The approval of invoice by the purchase department after verifying it with POP from master data and then attaching it with the GRIN ensure that the correct payment is add to the relevant supplier. Efficient Employment of resources: Since approved invoice is attached with the relevant GRIN, so it makes the posting of vouchers more efficient. PEP- Entering payable data in the payable department: The payable personnel with the approved invoice in hand are in a better position to ensure that the payable liability is made against the relevant supplier. Input Validity, Input and Update Accuracy: The comparison between ESP. and GRIN and invoice ensures that that only a valid payable will be approved and become outstanding against the right supplier. The comparison will also ensure that the amount of payable outstanding will be accurate. PEP- Fortnightly printing of payment list and its approval by HOOD: Effectiveness Goal D: The fortnightly listing of payable reveals the suppliers to whom the payment is due along with the payment details. This process ensures that all the requisite payments are made within the credit period. Efficient Employment of Resources: The payable person does not have to physically go through all pending payable and identify those which are due. Automatically generation by the system ensures efficiency. Input validity, Input accuracy, Input completeness: Automatic generation of payment list using existing information from database ensures that it will have only valid (approved) payable and their amounts will be accurate. It will also ensure completeness because system ensures that the list includes all the payments due. PEP- Generation of payment vouchers and printing of checks: Effectiveness goal D: System generation of checks ensures that they are printed against the right vendors bearing the right amounts due. Efficiency of Resources: Automatic printing of check after generation of payment vouchers saves time. Security of Resources: Printing of checks by system ensures that the right amount due is associated with right vendor. This ensures that payments are made against a valid payable hence eliminating any possibility of cash being paid to the wrong recipient. Input validity: The payable list represents the actual, approved amounts due to vendors as a result of past event. Input ; Update accuracy: The rights amounts are appropriated against the right suppliers eliminating the probability of errors. This subsequently leads to accurate update of the payable account. Input ; Update completeness: The system prints checks for every vendor against whom the payment is due and their corresponding payment vouchers are made. This helps to achieve that no due payment is missed and all corresponding vouchers are made. PEP- Preparation of B. O. M against an open sales contract by comparing input with master data: In preparation of B. O. M, the clerk keys in the sales contract number and the system ensures that the demand being generated is against a valid sales contract. Hence, this ensures that the valid goods in the correct amount are ordered. Input Validity: As the sales order number written on the B. O. M. Is matched with the open sales order in the database, this ensures that the B. O. M is made against a valid sales contract. PEP- Automatic Generation of Demand from Bill of materials: Ensure demand validity: As the production planning finalizes the required raw materials in bill of materials, the system automatically generates demand which ensures that the origin of demand is representative of actual requirements. Efficient employment of resources: As the demand is generated automatically by the system, it saves on any human involvement for the purpose leading to efficient employment of resources. Input The information upon which the demand form is based was taken from the bill of material. This verifies that input is more likely to reflect actual demand. Input ; update accuracy: Automatic updating of fields of demand requisition form from bill of materials eliminates the probability of incorrect entry of data and ensures that the requisition form is accurate. PEP- Check inventory level at store and write current inventory level at generated demand: Effectiveness Goal D: Checking goods from the inventory ensures that excess goods are not purchased by mistake and only the required amount of goods is purchased. Efficiency of resources, Input Accuracy, Update Accuracy: As the inventory level is checked from the system instead of going to the store to physically count it so the efficiency is increased and the correct amounts will be entered and updated. PEP- Inspection of goods received by the user: The inspection of goods by the user ensures that the goods received from the supplier are of the required quality and the quantity is in conformance with the demand of the user. PEP- Comparison of Input with Master Data for Generation of SIR: Validity of Input, Input and Update Accuracy: This will ensure that the SIR is being prepared against a valid, approved requisition against which goods have been received. The comparison will identify any erroneous or suspect data and reduce input errors. PEP- Approval of SIR by HOOD: Input Validity, Security of Resources: Approval will ensure that the issue of goods is authorized for a valid use. This will also ensure security of resources. PEP- Comparison of SIR with BOOM to issue goods: The comparison will ensure that the goods are being issued against a valid BOOM and hence prevent misappropriation of resources. Ml- Scrutinizing vendor before addition to approved vendor list :Effectiveness goal A: This will ensure that only the competent vendors who will supply the best goods at the optimum price are entered into the system. MM- Comparison of comparative statement with actual quotations received by HOOD before approval: Effectiveness goal A: This will ensure that the purchase personnel has not included any fake quotation into the comparative statement and only the approved suppliers to which the quotation requests were sent are there on the comparative statement. Input validity: This comparison will ensure that only valid supplier is selected by the HOOD. MM- HOOD accesses inventory data from DEEDS to check inventory status before approval of requisition: Efficiency of resources: This will save time as the HOOD will directly check the inventory status online while approving the requisition and no requisition will be processed for the goods already present in stock. Hence the store department would not be involved in such situations which would lead to efficiency. ANALYSIS Analyzing the ERP system of Insist, we have concluded that they have implemented the system very effectively and are reaping great benefits from this technological advancement.

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Possibility Of Travelling Through Wormholes In Space Time Philosophy Essay

Possibility Of Travelling Through Wormholes In Space Time Philosophy Essay Wormhole is a tunnel connecting two different points in space time. It is also known as Einstein-Rosen bridge (1935). The objective of this study is to investigate is it possible to travel through the wormholes. 1 Introduction Wormhole(named by John Wheeler,physicist,1955) is the hypothetical tunnel connecting two different points in spacetime in such a way that a trip through the wormhole could take much less time. The spacetime tunnel is also known as Einstein-Rosen bridge (Einstein and Nathan Rosen,1935) Wormholes can be found in earth, but is a billion-trillion-trillionths of a centimeter across Hawking(2010), so it cannot be seen by humans naked eye. Travelling through wormhole or time machine can make human life to be more simple and interesting. The purpose of this study is to investigate the method that lead to building a time machine and travelling wormholes. 2 Literature Review 2.1 Definition Wormhole is a hypothetical tunnel which connects two different points in such a way that a trip through the wormhole could take much less time than a journey between the same starting and ending points in normal space in space time. Wormholes can allow matter, energy, and information to travel to a distant point without passing through the space between the two points effectively circumventing the light speed barrier that prevents it travels faster than light through normal space. Wormholes are actually the natural part of the fabric of space-time or the quantum foam. These natural wormholes are very small and short lived which the light cannot even pass through them. They are a popular feature of science fiction as they allow interstellar travel within human timescales. 2.2 History The mathematician Riemann (1845), who is the first formulated higher-dimensional geometry and also the one who first discusses wormholes. Riemann cuts (Riemanns Wormholes) are connections between spaces (multiply connected spaces) with zero length. Then, Einstein and his collaborator Rosen (Einstein-Rosen bridges ,1935) describe the relativistic of black holes requires wormholes at their center which seem to connect the center of a black hole with a mirror universe on the other side of space time. However, due to the center of a black hole singularity, wormhole could not be traversed as the point of infinite space time curvature where the gravity would also be infinite and all matter would be crushed to its most fundamental constituents. In additional, to travel through the wormhole would require motion faster than the speed of light which is a physical impossibility. 2.3 How is wormholes form Wormholes are considered possible based on (Einsteins theory of relativity, 1916), who states that, any mass curves space time. To understand this curvature, think about two people holding a bed sheet up and stretching that sheet tightly. If one person is to place a baseball on the bed sheet, the weight of the baseball would roll to the middle of the sheet and causes the sheet to curve at that point similar if a marble were placed on the edge of the same bed sheet, it would travel toward the baseball because of the curve. In this example, space is depicted as a two-dimensional plane rather than the four dimensions which actually make up space time. Imagine that is the sheet is folded over and leaving a space between the top and bottom. If place the baseball on the top side will form a curvature. If an equal mass is placed on the bottom part of the sheet at a point that corresponds with the location of the baseball on the top, the second mass would eventually meet with the baseball. This is similar to how wormholes might form. In space, masses that place pressure on different parts of the universe could eventually come together to form a tunnel which is a wormhole. We could travel from Earth to another galaxy and return back relatively quickly within a lifetime. 3 Finding and Discussion 3.1 Wormholes exist in our earth According to Stephen Hawking( physicist and cosmologist), everyone knows that all physical object has three dimensions, they are length, width and height. But, there is another type of length that is length in time. Everything has length in time including space. Travelling in time means travelling through this fourth dimension. By imagine of doing a car travel, drove in a straight line and travelling in one dimension, then turn right or left and this is already adding the second dimension. After that, by driving up or down is actually adding the third dimension, height. So, this is the three dimensions. The fourth dimension is by travelling in time. There is a concept of making the time machine to travel through the fourth dimension. Nothing is flat or solid. If by looking closely at anything, holes and wrinkles can be found. It is a very basic principle even applies to time. Even something as smooth as a pool ball has tiny crevices, wrinkles, and voids. Same as the fourth dimension, there are tiny crevices, wrinkles and voids in time. Down at the smallest of scales, smaller even than molecules or atoms, this is so called quantum foam. This is where wormholes exist. Tiny tunnels through space and time constantly form, disappear, and reform within this quantum world. They actually link two separate places and two different times. These real-life time tunnels are just a billion-trillion-trillionths of a centimeter across. It is too small for human to pass through. Some scientists think that is possible to capture the wormholes and enlarge it by using enough power and advanced technology. Wormholes will happened just like sound system but only radiation instead of sound. Sound enters the microphone. Its transmitted along the wires, made louder by the amplifier, and comes out at the speakers. 3.2 The leading of making time machine According to Albert Einstein, He realized that there should be places where time slows down, and others where time speeds up. The proof is in the space. One of the example is GPS, Global Positioning System. The heavier the object, the more it drags on time. A super-massive black hole is a time machine. It is a heaviest object in the galaxy. It wont destroy itself in a flash of feedback. But its pretty dangerous. Its a long way away and it doesnt even take us very far into the future. Fortunately there is another way to travel in time. And this represents our last and best hope of building a real time machine. Hawking (2010) said that theres a cosmic limit of speed that is speed of light. But travelling by a speed near to the speed of light will brings you to the future. For example, the science-fiction transportation system. Imagine a track which goes right round the earth, a track for superfast train. Use this imaginary train to get as close as possible to the speed of light and see how it becomes a time machine. On board are passengers with a one-way ticket to the future. The train begins to accelerate, faster and faster. Soon, its circling the Earth over and over again. To reach the speed of light and cycling around the earth consider very fast and is 7 times per second. However, no matter how much power the train has, it can never quite reach the speed of light, since the laws of physics forbid it. Instead, lets say the speed gets close, Time starts flowing slowly on board relative to the rest of the world, just like near the black hole. Everything on the train is in slow motion. Imag ine that the train left the station on January 1, 2050. It circles Earth over and over again for 100 years before finally coming to a halt on New Years Day, 2150. The passengers will have only lived one week because time is slowed down that much inside the train. When they got out theyd find a very diffà ¢Ã¢â€š ¬Ã¢â‚¬Ëœerent world from the one theyd left. In one week theyd have travelled 100 years into the future. Of course, building a train that could reach such a speed is quite impossible. But we have built something very like the train at the worlds largest particle accelerator at CERN in Geneva, Switzerland. Deep underground, in a circular tunnel 16 miles long, is a stream of trillions of tiny particles. When the power is turned on, they accelerate from zero to 60,000mph in a fraction of a second. Increase the power and the particles go faster and faster, until theyre whizzing around the tunnel 11,000 times a second, which is almost the speed of light. But just like the train, they never quite reach that ultimate speed. They can only get to 99.99 per cent of the limit. When that happens, they are starting to travel in time. This because of some extremely short-lived particles, called pi-mesons. Ordinarily, they disintegrate after just 25 billionths of a second. But when they are accelerated near to light speed they last 30 times longer. 3.3 Warp drive engine Two physicists (Cleaver,G.B and Obousy,R ) from Baylor University (Waco, Texas) have outlined an engine on how to travel faster than light which is also called warp drive could be created that would bend but not break the laws of physics. The warp engine is based on a design by Alcubierre (1994), known as Alcubierre drive which involves the fabric expansion of space behind a ship into a bubble and shrinking space-time in front of the ship. The ship would rest in between the expanding and shrinking space-time, essentially surfing down the side of the bubble. In addition, the tricky part is that the space itself would move underneath the stationary spacecraft but the ship would not actually move. The beam of light that far from the ship would left behind but the beam of light next to the ship would zoom away. This means that the ship would arrive at its destination faster than a beam of light by traveling the same distance. However, without violating Einsteins relativity (Einstein,A.1916) which says that it would take an infinite amount of energy to accelerate an object with mass to the speed of light, since the ship itself actually is not moving. 3.4 11th dimension Moreover, Cleaver and Obousy who are the other coauthor have manipulate the 11th dimension which is a special theoretical construct of m-theory (the offspring of string theory) to create the bubble and the ship would surf down. The bubble of dark energy could be created if the 11th dimension could be shrunk behind the ship. Hence, the same dark energy would cause the universe to speed up as time goes on. Thus, by expanding the 11th dimension in front of the ship would eventually cause it to decrease although two separate steps are required. At the end, how is the 11th dimension would be expanded and shrunk is still unknown. All the scientists still work hard for this. If there are extra dimensions and we could manipulate them, that would open up all sorts of exciting possibilities(Tufts University theoretical physicist Lawrence Ford). 3.5 Overcoming a wormholes instability with negative energy The main problem by using wormholes to travel in space or time is that they are inherently unstable. It would create fluctuations that cause the structure to collapse in upon itself when a particle enters a wormhole. There are theories (Thorne,1994) describe that a wormhole could be held open by some form of negative energy which represents a case where the energy density in space is actually negative. Therefore, sufficient quantity of negative energy might continue to hold the wormhole open while objects pass through it. This would be an absolute necessity to allow a wormhole to become a time portal. However, scientists lack a real understanding on how to get enough negative energy together, and most scientists think it is an impossible task. 3.6 Relativity of dark energy and negative energy In some models which are highly contrived, it may be possible to relate dark energy and negative energy because both of it exhibit a form of repulsive gravity even though dark energy is a positive energy. However, the good news is that our universe appears to have dark energy in abundance, but it is looks like the dark energy is distributed throughout the universe. There is no guarantee that stable wormholes can occur although String theory (Veneziano,1970) can provide potential sources of negative energy. Therefore, to find any way to store negative energy and use it to sustain a wormholes stability is far beyond current technology or maybe it is an impossible task. 4 Conclusion Wormhole is a hypothetical tunnel which allows everything to pass through without passing through the space between starting point and ending point. The wormholes may formed by allowing human to travel from Earth to another galaxy and return back relatively quickly within a lifetime. To travel through the wormhole, it must be travel faster than light. A Warp Drive Engine is outlined and based on a design by Alcubierre (1994), on how to travel faster than light. To overcome wormholes instability, it required negative energy but there is no guarantee that a stable wormholes can be occur even though String theory can provide potential sources of negative energy. According to Hawking (2010), wormhole is exists in the earth and it is possible to travel through . Number of words:2150 words

Public Health Professionals Essay -- Health, Health Services

Identify and describe three reasons why there may be a physician shortage rather than a surplus in the U.S. William & Torrens (2010) provided a table to show the first time since 1965, between 2000 and 2005, there was a slight decrease in the ratio of physicians per 100,000 civilian populations. The three reasons why there is a physician shortage rather than a surplus in the United States is caused first of all by more restrictive elements that have been blunted due to widespread physician and patient dissatisfaction, particularly with limits of choice (Williams & Torrens, page 270). The move away from more efficient forms of organized medical practice commonly means that more physicians will be necessary to deliver the same level of care (Mick, 2004). Physicians and patients seem to prefer choice to efficiency, which will add pressure for more physicians and is the first of several possible factors fueling fears of a new shortage (Williams & Torrens, page 270). The second reason for the physician shortage in the United States is was a larger percentage of women in medical school. Wome n still do a majority of the tasks surrounding the raising of children and maintaining a home, leaving less time available for practice (Williams & Torrens, page 270). This demographic shift with the workforce may produce more pressure for more than fewer physicians (Williams & Torrens, page 270). Third, physician preferences now favor a more â€Å"controllable lifestyle† (Williams & Torrens, page 270). Young physicians today seek career opportunities with weekends off limiting the hours worked per week. These preferences over time will reduce the availability for patient care (Dorsey, Jarjorua, & Rutecki. 2003). Identify and describe three f... ...ion, the emergence of the hospital and hospital systems and their associated ambulatory clinics as the central institution of the health care system, and the large array of post hospitalization treatment venues that include nursing homes, rehabilitation facilitates, hospices, and home health organizations (Williams & Torrens, page 268). Secondly, technological innovation has also lead to increased specialization of health care personnel, primarily during the last 40 year (Williams& Torrens, page 268). This specialization opened the door to several new health care professions. The last role reviewed was health care workers that have gained the largest share of the overall number of allied health positions. They compose of a mere 1 to 2 percent in 1920, but in 2000 they made up over 54 percent (Williams & Torrens, page 268).

Malaysia is rapidly developing towards being an industrial country

Chapter 1Introduction1.0 BackgroundMalaysia is quickly developing towards being an industrial state. Many industries such as heavy and light industries, little and average industries and backyard industries have been turning in the last 10 old ages. The addition in industrial and agricultural activities has created a new demand in lodging, urbanisation, transit and medicine as the population addition. All these will lend to environmental jobs particularly pollution due to the accretion of risky chemicals such as heavy metals in environment. Environmental pollution has become a major issue that requires immediate action as it may effects human wellness. Pollution can take many signifiers such as H2O and air that we breathe. Urbanization in developed and development state, civilisation and industrialisation make the state of affairs of the environment worsened as such that there is no more safe topographic point to populate. From the chemical science lexicon, pollution can be define as an unwanted alteration in the physical, chemical, or biological features of the natural environment, brought about by adult male ‘s activities. It may be harmful to human or non living things. Basically there are two chief categories of pollutants which are biodegradable which means it can be rendered harmless by natural procedures and need hence do no lasting injury if adequately dispersed or treated such as sewerage. Another type is nonbiodegradable which can non be break uping by microbic activity. For illustration heavy metals suc h as lead, DDT and other chlorinated hydrocarbons used as pesticides, which finally accumulate in the environment and may be concentrated in nutrient ironss. Pollution besides can be describes as the debut of foreign substances into the biosphere. It may impact the dirt, rivers, seas, or the ambiance. The pollutants that are released from the anthropogenetic activities such as agricultural industries, unfastened combustion, solid waste disposal, sewerage intervention workss and transit produce risky and toxicant pollutants such as SO2, NOx, heavy metals and hydrocarbon compounds that effects non merely human but besides both workss and animate beings that can do decease. Some of these risky pollutants find their manner into the human system through the nutrient web. They may undergo biotransformation, metamorphosis and excreted without the hazard of toxicity depending on the chemical features of the compound and the dosage in human organic structure. However, some of the pollutants resist chemical and biological transmutation and accumulate in the tissues, including the nervousnesss, to do toxicity. The inauspicious effects of these pollu tants on the nervousnesss system give rise to neurotoxicity. Rana et al. , ( 2004 ) ; Katranitsas et al. , ( 2003 ) found that there is grounds that increasing exposure to toxic elements in Marine and tellurian beings is holding inauspicious toxicological effects. Therefore heavy metals pollution become serious issues that must been concerned. Unlike other pollutants such as crude oil hydrocarbons and domestic and municipal litter which may visibly construct up in the environment, hint metals in the environment may roll up unnoticed to toxic degrees. By and large, human wellness jobs associated with hint metal taint have been well-highlighted in the literature. In malice of the comparatively low degree of industrial activity in less developed parts there is however a high potency of toxic heavy metal pollution. The distribution of metals in the environment is a consequence of natural procedures ( vents, eroding, spring H2O, bacterial activity ) and anthropogenetic activities ( fossil fuel burning, industrial and agricultural procedures ) ( Florea and Busselberg, 2006 ) . Heavy metals such as arsenic lead, Cu, Cd, or Zn are released from the Earth ‘s crust into the environment through anthropogenetic beginnings such as non-ferrous metal industry or non-renewable energy ingestion. These substances can do major harm to human wellness or to ecosystem stableness even at low concentrations in dirts. To get the better of this issue, many states have taken legion enterprises particularly the developed state. For illustration, in 2001 the European Union council signed the 1979 Convention on Long-range Transboundary Air Pollution on Heavy Metals ( Europa, 2007 ) . Therefore there are many methods to measure and measure the presence of these substances. One of them is biological used. The application of biological signifiers as the indexs is the best ways to measure the environmental status. Harmonizing to ( Szczepaniak and Biziuk, 2003 ; Bargagli, 1998 ) , in order to observe, measure and minimise the effects, there has been an accent in the usage of natural bioindicators to supervise atmospheric quality in both urban and rural environments. Examples of bioindicators are lichens, fish, and mosses. One of the bioindicators that can be used is lichens. Lichens are widely known as an first-class index to measure our environment. Lichens drama importance functions to forest communities. Lichens represent a rare beginning of readily digestible nutrient at all times of twelvemonth and in diverse environments due to their ability to last in utmost clime status. More by and large, lichens act as innovator species in waste or disturbed environments ; their growing on stone surfaces is one of the primary phases of dirt formation in such environments ( Brakenhielm, 1998 ; Cooper, 1953 in Dawson, 2008 ) . Lichens are little, non-vascular workss dwelling of a fungus and an alga turning together in one tissue. Normally lichens are found on the bark of trees, or the caribou lichens turning on the land, but many other species grow on stones, fencings, roofs, gravestones, and other objects. The feature of lichen that sensitive to the alterations of the surrounding makes them as an first-class bioindicators and biomonitors for air pollution, particularly sulfur dioxide pollution, since they derive their H2O and indispensable foods chiefly from the ambiance instead than from the dirt. A batch of surveies towards lichens had been done related to pollution particularly air pollution in most Europen states and North America Asia. During the period 1973-1988, about 1500 documents were published on the effects of air pollution on lichens Richardson ( 1988 ) cited in Ahmadjian ( 1993 ) , and many general reappraisals of lichens and air pollution have been compiled ( Ahmadjian, 1993 ) . The statute law about air quality that they made has been base on ballss through out the states particularly in developing states where air pollution is bad. In Malaysia, several surveies has been conducted ( Mokhtar et al. , 2006 ) to find the heavy metals pollution degree utilizing lichen at difference topographic points. From the research, they found out that the sensitiveness of lichens towards heavy metals vary from each species. Most of species of lichen have a broad geographical distribution, which allows for a survey of pollution covering broad countries and its high capacity to r oll up metals ( Burton, 1986 ) . Hutchinson et al. , ( 1996 ) stated that lichens do non hold seasonal fluctuations and therefore accretion of pollutants can happen all year-round. Lichens and mosses normally have considerable length of service, which led to their usage as long-run planimeters of atmospheric deposition ( Sloof, 1993 ) . The benefits of utilizing lichens as quantitative biological proctors of air metal deposition comparison to conventional air trying techniques rise from that lichens are present in most tellurian home grounds, are perennial, cheap and easy reproduced ( Baffi et al. , 2002 ) .1.1 Problem statementNowadays the degree of heavy metals in the environment increasing twenty-four hours by twenty-four hours as the universe becomes much more developed. This is because the uncontrolled released of heavy metals leads to the pollution due to the inordinate anthropogenetic activities. The uninterrupted burden of heavy metals into inland and coastal H2O make the st ate of affairs worsens. Anthropogenetic activities such as excavation, smelting and agribusiness have locally increased the degrees of heavy metals such as Cd ( Cd ) , Cu ( Cu ) , Cr ( Cr ) , lead ( Pb ) , arsenic ( As ) and nickel ( Ni ) in dirt up to unsafe degrees for workss, animate beings and human existences. Although with the wood around us, the position of heavy metals level rather important as the consequence of human day-to-day activities, heavy population country near the wood and besides an increasing of the transit. These activities give inauspicious consequence to the life being as they enter into the environment. Other than that the ordinances provided by Malayan authorities which is the Environmental Quality Act 1974 by Department of Environment, still non to the full been forced due to the engagement other parties such as local authorization to take action when the degree of pollutants exceed the standard given particularly in coastal country. This is due to the dif ferent section have different duties. Nevertheless these parties can be work together to make a better life. Meanwhile due to the deficiency of surveies towards the lichens in our state, the informations obtained can assist the local authorization in determination devising procedure therefore maintained the quality. Besides that, it would assist to do an appraisal about the environmental status and possibly to better environmental quality position.1.2 ObjectiveThis survey was carried out in order to accomplish as the followerss:To quantify the heavy metals present in lichens.To measure the degree of heavy metals in lichens.To set up the correlativity of heavy metals pollutants in lichens with the environing environment.1.3 Significant of surveyBy cognizing that different species has different sensitiveness towards heavy metals, it allow breaking understanding about the sensitiveness of lichens towards heavy metals at environing environment. The presence or absences of species in cou ntries can give better understanding about the sensitiveness of lichens towards the pollutants. The information obtained besides can be used to measure the toxicology effects non merely to the lichens but besides on homo. Heavy metals can really toxic if the degree of the pollutants higher than the limited given. The informations besides can make the distribution forms of lichens at that topographic point. The pollution degree and position topographic point besides can be determined. This survey provides a mention record for carry oning farther biomonitoring surveies.1.4 Thesis organisationThe finding of heavy metals in lichens as bioindicators is a thesis based on old research in different trying location. Overall, this thesis consists of five chapters which are to help in understanding and easiness to form through authorship procedure. The chapters in this thesis have been forming as follows: Chapter 2 by and large discuss about the used on lichens as bioindicators. In this chapter, it besides has detailed account on the morphology of lichens that play of import function in accumulate heavy metals. It besides include the history on the scientific research on lichens, the important function on absorb the heavy metals and the effects of air pollution and metal pollution towards lichens. Chapter 3 is more concentrating on research methodological analysis. In this portion, it is divided into three parts which are the description on country of survey, trying aggregation and in conclusion laboratory analysis which is the process to find heavy metals utilizing Inductively Coupled Plasma-Mass Spectrometer ( ICP-MS ) . Chapter 4 is concentrating on the consequences obtained and treatment. In this chapter, it discuss about the informations obtained after analyze by ICP-MS. It besides include the statistical tools to analyse the preciseness of the informations obtain in order to hold a good information. It besides states the consequences and the informations reading between the samples. Chapter 5 is the last chapter which is the decision. In this portion, it concludes for the whole chapter in the thesis. It related on the aim of the survey including the recommendation to better the research on lichens.Chapter 2LITERATURE REVIEW2.1 BioindicatorsBioindicators, besides known as biomarkers, are tools that used in ecology, physiology, environmental microbiology and other subjects, to observe strain and other environmental conditions environing beings. USEPA stated that biological index species are alone environmental indexs as they offer a signal of the biological status in a watershed as they reveal the pollution position from clip to clip. The presence of this species can give an early warning of pollution or debasement in an ecosystem every bit good as aid prolong critical resources. Bioindicators differ from biomonitoring. Bioindicators are really groups or types of biological resources that can be used for designation and qualitative finding of homo generated enviro nmental factors Tonneijk and Posthumus ( 1987 ) cited in Conti and Cecchetti ( 2001 ) while biomonitors are being chiefly used for the quatitative finding of and can be classified as being sensitive or accumulative ( Conti and Cecchetti, 2001 ) . Bioindicators are divided into two types. First, accretion indexs which are shop pollutants without any apparent alterations in their metamorphosis. Another one is response indexs which is react with cell alterations or seeable symptoms of harm when taking up even little sums of risky substances. The application of bioindicators in measuring air pollution is much cheaper compared with other methods as Fuga et al. , ( 2008 ) noted that beside low cost, they besides easy for sampling, and the possibility of supervising broad countries. The application of workss as bioindicators has been conducted for many old ages to observe environmental alterations ( Mokhtar et al. , 2006 ) . Harmonizing to Chandra and Sinha ( 2000 ) workss are extremely effectual and sensitive tools for finding and foretelling environmental emphasiss. Mosss, lichens and Fungis are the illustrations type of workss that normally used to bespeak the environmental alterations. However a lichen species was more resilient than a moss species in two exposure experiments look intoing hint metal consumption affecting grafts into urban environments ( Tretiach et al. , 2007 ) .2.2 LichensLichens consists of a fungus, known as the mycobiont, and a photosynthetic being, a green alga or blue-green algae species, the photobiont. Both of them are symbiosis as they rely each other where the algae and fungi give benefits each other ( Hawksworth and Rose, 1976 ) . The symbiotic action between the mycobiont ( -s ) and the photobiont ( -s ) , signifier thallus which the organic structure of lichens through a procedure of symbiogenesis ( Margulis and Barreno, 2003 ) are stable â€Å"micro-ecosystems† as a consequence mutualism procedure make these non-linear belongingss to be peculiarly effectual ‘early warning indexs ‘ of alterations dues to the impact of worlds on ecosystems ( Barreno, 2003 ) . Poikolainen ( 2004 ) stated that the fungous constituent normally an Ascomycetes fungus, and a green alga ( Chlorophyceae ) and/or bluish green alga ( Cyanobacteriae ) is the algal constituent. About 19 % of all Fungis are lichenized ( Lutzoni et al. , 2001 ; Hawksworth et al. , 1995 ) . More than 98 % of lichenized fungous species belong to phylum Ascomycota, others are from orders of phylum Basidiomycota and some to Mitosporic Fungi ( Hawksworth et al. , 1995 ; Tehler, 1996 ) . Most of the photobiont spouse is form by green alga ( Chlorophyta ; Lewis and McCourt, 2004 ) , merely approximately 10 % with blue-green algae, and 3 % with both green alga and blue-green algae ( Hawksworth et al. , 1995 ; Honegger, 1996 ) . The fungous constituent is responsible for taking up H2O and minerals, and the algal constituent, which grows in the center of the fungous mycelia, for photosynthesis in order to feed both spouses as it has chlorophyll that is able to devour sunshine, produce indispensable foods. Most lichen species obtain their foods from moisture and dry deposition ( Garty, 1993 ) . Some mycobionts can besides alter their photosynthesizing spouse from green alga to cyanobacterium and frailty versa and this leads to alterations in thallus morphology ( Oksanen, 2006 ) . This behaviour was suggested to be due to an environmental version and related to ecological compatibility of the photobiont ( Honegger, 1996 ; Stenroos et Al, 2003 ) . The categorization of lichens depends on thallus construction. There are three growing signifiers of lichens which are Crustose ( crusty ) , foliaceous ( leafy ) and fructicose ( shrubby ) ( Swinscow and Krog, 1988 ) . Growth form irregular the grade of physical contact and orientation of the lichen with its substrate every bit good as the sum of uninterrupted surface country exposed to airborne deposition therefore it should hold a direct impact on both the interception and consumption of airborne and substrate available elements by lichens ( Samuel et al, 2002 ) . Basically lichens can be found in tellurian home grounds, although a few can last invariably below the surface of H2O, such as Peltigera hydrothyria. They can populate on bark ( epiphytic ) , stones ( epilithic ) , or dirt ( terricolous ) and can even turn within the upper part of stones ( endolithic ) , peculiarly in exposed limestones and sandstones. In the Torrid Zones they can besides colonise foliages ( foliicolous ) ( Nash, 2008 ) . Lichens frequently grow in home grounds with utmost visible radiation, waterlessness, or temperature, which are less favourable or unsuitable for higher workss ( Vrablikova et al. , 2006 ) . Although lichens are attached to the bark or perforate a short distance, they are non parasite which is non come ining the inner bark where nutrient is transported, and therefore do non devour the tree of nutriment. Lichens depend on mineral foods from moisture and dry deposition on the works surface in the signifier of soluble salts and atoms, for their growing and metamorphosis ( Loppi and Pirintsos, 2003 ) . Lichens can widen the utmost status, slow-growing, beings that maintain a reasonably unvarying morphology in clip and are extremely dependent on the environing for foods ( Loppi and Pirintsos, 2003 ) . Several research workers such as Chiarenzelli et Al. ( 1997 ) have studied the accretion of heavy metals in Arctic tundra ecosystem at the Otter Lake, Northwest Territories, Canada.2.2 Lichens as bioindicatorsSince lichens are the most widely used biomonitors in tellurian environments ( Nimis et al. , 2002 ) , therefore they can observe and supervise a tonss of pollutants such as SO2, HF, metals, high N deposition, organic pollutants and radionuclides. Most surveies utilizing lichens as index species of air pollution peculiarly acerb rain, fertilisers, sulfur and N oxides, and metals, has been documented in 1000s of scientific documents ( Henderson, 2000 ) . Hawksworth and Rose ( 1976 ) reported that in the early 1860 ‘s lichens were recognized as possible indexs of air pollution in Britain and Europe. Since so, lichens have played outstanding functions in air pollution surveies throughout the universe because of their sensitiveness to different gaseous pollutants, peculiarly sulfur dioxide. More than a century ago William Nylander ( 1866 ) , a European scientist, found that lichens in the countryside around Paris were non found inside the metropolis. He investigated the state of affairs and found out that the lichens had been quickly decreasing, killed by pollutants. Since of those findings, an extended research have been conducted in many countries ( Barkman, 1958 ; De Wit, 1976 ; Hawksworth, 1971 ) cited in Wolterbeek et al. , ( 2003 ) . Other than that, several researches have studied the relationship between lichens and hint elements in different geographic country ( Loppi and Bonini, 2000 ; Garty, 2001 ; Carreras and Pignata, 2002 ; Yenisoy-Karakas and Tuncel, 2004 ; Conti and Cecchetti, 2001 ; Bergamaschi et al. , 2004 ) . Hundreds of surveies have been published on the effects of sulfur dioxide, N compounds, ozone, heavy metals and other atmospheric pollutants on the morphology and physiology of lichens since the 1950 ‘s ( Richardson, 1992 ; Garty, 2000 ) . These surveies have chiefly been experimental. Lichens have besides been employed among other things as accretion indexs of heavy metals ( Freitas, 1994 ) every bit good as sulfur and N compounds ( Sochting, 1995 ) derived from industrial activities and power production in a infinite figure of surveies carried out in the milieus of emanation beginnings. Therefore research related to the pollution based on lichen as an indexs being used widely. This is because there were certain features on lichens that make them an first-class bioindicators for finding the presence of the primary pollutants such as sulfur dioxide ( SO2 ) , nitrogen dioxide ( NO2 ) , fluoride, acerb precipitation, ozone and metals ( Hutchinson et al. , 1996 ) . Several regional and even national studies have been carried out on the relationship between the happening of epiphytic lichen and atmospheric pollutants ( Poikolainen et al. , 2000 ) . Other than that, Soderstrom ( 1988 ) , Lesica et al. , ( 1991 ) , Esseen et al. , ( 1997 ) cited in Humphrey et al. , ( 2002 ) supported that epiphytic nonvascular plants and lichens are of import constituents of biological diverseness in natural boreal and temperate woods. Most of species of lichen have a broad geographical distribution, which allows for a survey of pollution covering broad countries and its high capacity to roll up metals Burton ( 1986 ) cited in Mokhtar et al. , ( 2006 ) . Hutchinson et al. , ( 1996 ) stated that lichens do non hold seasonal fluctuations and therefore accretion of pollutants can happen all old ages. They cover 8 % of the land surface, including some of the most utmost environments on Earth Larson ( 1987 ) cited in Backor and Loppi ( 2009 ) . Lichens and mosses normally have considerable length of service, which led to their usage as long-run planimeters of atmospheric deposition ( Sloof, 1993 ) . Lichens are really sensitive to break in naturality ensuing from air pollutants, chiefly sulfur dioxide and heavy metals ( Nimis et al. , 2002 ) . Their alone characteristic which is do non hold outer impermeable bed of tissue to forestall gases and atoms that affect their metamorphosis. This characteristic besides indicate that little atoms in the ambiance can be absorbed do them most of import bioindicator ( Bennet, 2006 ) . Besides that, because of the failing of its cuticles enables moist air to be absorbed through its surface. Metallic elements which are absorbed along with the moist air are dissolved in it ( Mokhtar et al. , 2006 ) . Trace metals from air borne atoms can be absorbed by lichen and so roll up and saturated the metals. This is because their construction and anatomy ( Hutchinson et al, 1996 ) do them able to uptake the pollutants. The diminishing of some lichen diverseness due to the increasing in air pollution and environmental emphasis ( Svoboda, 2010 ) indicate that the environmental status in that part is polluted. Pollution signifiers such as forest atomization ( Fritz et al. , 2008 ; Hedenas and Ericson, 2008 ; Ranius et al. , 2008 ) give premium public-service corporation as indexs of naturalist.2.3 Biological public presentationLichens can be considered and analyzed in footings of their morphology, histology, ecology and physiology, in short or long-run periods of clip ( Ahmadjian and Hale, 1973 ) . Several researches Garty et al. , ( 1998 ) has been studied on the lichen ‘s biological public presentation such as measurings on growing rate, productiveness, generative capacity, malformation, stain, chlorophyll content, membrane unity, respiratory activity, ionic content, geographical happening, substrate-related distributional restrictions, or H2O dealingss. Habitat debasement and loss ( Groom et al. , 2006 ) , habitat atomization ( Bergamini et al. , 2005 ) , overuse ( Upreti et al. , 2005 ) , species invasions ( La Greca and Stutzman, 2006 ) , and clime alteration is the chief menaces to the biodiversity of lichens. For illustration, overbrowsing of the Cladonia heath by increasing caribou populations in Scandinavia and Alaska has long been recognised as an of import factor doing the terrible diminution of lichens, which might go a serious job in caribou farming ( Suominen and Olfosson, 2000 ) . Climate alteration is likely to hold dramatic effects on distribution and copiousness of lichen populations ( Ellis and Coppins, 2007 ; Ellis et al. , 2007 ) . Yet another menace which is specific to lichens and other poikilohydric cryptogams is air pollution, which has led to the terrible diminution of legion species throughout Central Europe ( Nimis et al. , 2002 ) . The construction and features of lichens play of import function as they served as the early warning to the pollution. Otnyukova et Al. ( 2007 ) identifies a relationship between deposition, unnatural morphology in Usnea and tissue chemical science, supplying an early indicant of forest diminution. However the biological grading, the reading of â€Å" symptom function † is frequently instead hard Seaward ( 1976 ) cited in Wolterbeek et al. , ( 2003 ) . Due to the addition in size may reflect an addition in generative capacity but may besides merely show an abnormalcy of form or signifier of the cardinal parts of the thallus. Another ground is the stain might be associated to the general deteriorate but besides reflect hurts from other beginnings such as insect, diseases or chemical sprays. Last but non least, alterations in the distribution of species may reflect alterations in air pollution ( Barkman, 1958 ; De Wit, 1976 ; Henderson-Sellers and Seaward, 1979 cited in Wolterbeek et al.,2003 ) , but may besides be associated to other environmental parametric quantities ( Henderson-Sellers and Seaward, 1979 ) , such as alterations in humidness or alterations in the handiness of preferent substrates ( De Wit, 1976 ; Manning and Feder, 1980 ) .2.4 Heavy metalsDetermining concentrations of heavy metals in the environment is an of import portion of understanding biochemical procedures and grade of ecosystem wellness ( Schilling and Lehman, 2002 ) . Harmonizing to USEPA in Private Drinking Water Wells, heavy metals can be define as metallic elements with high denseness, such as, quicksilver Cr Cd, arsenic, and lead. Even at low degrees these metals can damage living things. Once heavy metals get into the environment, whether in little or big measures, they can non be wholly e liminated. They can non to interrupt down or biodegrade and be given to construct up in workss, animate beings, and people doing wellness concerns. This statement supported by other research workers such as Lenntech ( 2004 ) cited in Duruibe et al. , ( 2007 ) which stated that any heavy metal is toxic or toxicant even at low concentration. However, their denseness is non the most concerns features to be considered but their chemical belongingss ( Duruibe et al. , 2007 ) as they can do important impact to the environment. ( Dembitsky, 2003 ) reported that these toxic substances contribute to a assortment of toxic effects on life beings by nutrient concatenation as they enter into environment.2.5 Beginning of metal pollutionHeavy metals occur in two ways ; of course or geological and anthropogenetic activities such as industrial wastewaters, fuel production, excavation, smelting procedures, military operations, use of agricultural chemicals, small-scale industries ( including battery production, metal merchandises, metal smelting and overseas telegram coating industries ) , brick kilns and coal burning ( Zhen-Guo et al. , 2002 ) . This statement supported by Dembitsky ( 2003 ) which stated that these tracts are beginnings of heavy metal taint. Other than that Zhang et Al. ( 2009 ) noted that in nature, heavy metals are widely distributed in such ways such as H2O, dirt, air and assorted signifiers of beings at low concentration. Harmonizing to fairfaxcounty ( 2005 ) nowadays roadways and cars are considered to be one of the largest beginnings of heavy metals. The most common heavy metals released from route travel are zinc, Cu, and lead, and at least 90 of the entire metals in route overflow. However lead concentrations, systematically have been diminishing since leaded gasolene was stopped. Other than that, undistinguished sums of other metals, such as Ni and Cd, are besides found in route overflow and fumes.2.6 Metallic elements toxicityPassage metals are required by workss ( Akbulut et al.,2008 ; Sofuoglu, et al.,2008 ) . Wolterbeek et Al. ( 2003 ) stated that the elements can be classified into macronutrients or micronutrients and as indispensable and non-essential. Some metals ; Co ( Co ) , Cu ( Cu ) , Cr ( Cr ) , and Ni ( Ni ) are really necessary for human in highly little sums ( Zevenhoven and Kilpinen, 2001 ) . However some elements for illustration quicksilver ( Hg ) , Cd ( Cd ) , lead ( Pb ) , Cr ( Cr ) and arsenic ( As ) , can do pollution and interrupt the environment when their accretions exceed certain degrees even at low concentration ( Kennish, 1992 ) . Harmonizing to Jadia and Fulekar ( 2009 ) classified that â€Å"essential† metals which have benefits and of course found are ( Ca, Co, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Se, V and Zn ) but can be toxic when inordinate while â€Å"non essential† metals which are ( Al, As, Au, Cd, Cr, Hg, Pb, Pd, Pt, Sb, Te, Tl and U ) that can be extremely toxic and can do serious wellness harm when inordinate consumption. Information given by Bowen ( 1979 ) cited in Wolterbeek et Al. ( 2003 ) and Markert ( 1996 ) can be utilize for farther general and more elaborate informations on metal essentialness, happening in dirts and workss, toxicity and uptake. Plants have the ability to roll up indispensable metals in different concentration for growing and development ( Jadia and Fulekar, 2009 ) . However workss besides tend to roll up the non-essential metals which have no known biological map ( Djingova and Kuleff, 2000 ) . Wolterbeek et Al. ( 2003 ) found that because of the works ‘s me tabolically controlled care of needed degrees of indispensable elements, lichens may demo instead high base-line concentrations for particularly the indispensable elements under low atmospheric handiness conditions. Because of their features which is can non to be brake down, it can do direct toxicity by damaging cell construction ( due to oxidative emphasis caused by reactive O species ) and suppress a figure of cytoplasmatic enzymes when the accretion inside works cells above threshold or optimum degree ( Assche and Clijsters, 1990 ) . Furthermore, it can do indirect toxic effects by replacing indispensable foods at cation exchange sites in workss ( Taiz and Zeiger, 2002 ) . Baker ( 1981 ) cited in Jadia and Fulekar ( 2009 ) suggested, that some workss have evolved to digest the presence of big sums of metals in their environment by the undermentioned three ways ; exclution, inclution and bioaccumulation.2.7 Lichens and surplus of heavy metalsPermeability of the plasma membrane of lichens may change by metals, taking to leakage of ions like K and other solutes ( Grunsveld and Clijsters, 1994 ) . Biomonitors by lichens at specific country has failing as their responses could be changing from th ose observed in the research lab. This is due to the fact that the lichens are exposed non merely to a individual pollutant but to other mixtures of pollutants which are besides affected by different meteoric conditions ( Carreras et al. , 2005 ) . Although biomonitoring plan on atmospheric heavy metals and advancement in this field has been already reviewed throughout the universe ( Garty, 2001 ; Bargagli and Mikhailova, 2002 ) but in the last few old ages at that place has been researched focused on the physiological and biochemical effects of heavy metal accretion in lichens ( Backor and Loppi, 2009 ) . There are many surveies has been documented sing the effectivity of lichens in stoping atoms non merely from the ambiance but besides from substrate ( Loppi et al. , 1999 ; Pirintsos et al. , 2006 ) . These atoms may be precipitated onto the lichen surface or trapped in the intercellular infinites of the myelin ( Garty et al. , 1979 cited in Backor and Loppi, 2009 ) and remain unchanged for a long period. Lichen can be harm caused by the presence of other gaseous or particulate pollutants in the environment which can disrupt the physiological procedures involved in the accretion of heavy metals ( Carreras et al. , 2005 ) . However Backor and Loppi ( 2009 ) found that because of the atoms deposited and remain unchanged, lichens can retain and accretion of heavy metals in measures that exceed their physiological demands. Several surveies have been conducted on the accretion of heavy metals in many different species ( Sawidis et al. , 1995 ; Monaci et al. , 1997 ; Scerbo et al. , 1999 ; Loppi et al. , 2002 ) . Some common species such as genera Acarospora, Aspicilia, Lecanora, Lecidea, Porpidia, Rhizocarpon or Tremolecia ( Purvis and Halls, 1996 ; Backor and Fahselt, 2004 ) associated with heavy metal-rich substrates can digest metals and occur in both contaminated and uncontaminated countries. Other species, nevertheless, are restricted and have a deficiency connexion in distribution reflecting the handiness of suited sites ( Backor and Loppi, 2009 ) .2.7 Accretion of heavy metalsLichens tend to roll up metals from airborne atoms or from dissolved and suspended stuff ( Wolterbeek et al.,2003 ) . In general, five mechanisms have been put frontward with respect to the soaking up of metals in lichens ; ion exchange, electrolyte sorption, intracellular soaking up, entrapment of atoms that contain metals, extracellular and hydrolysis as indicated by uptake surveies with integral lichens ( Richardson, 1995 ) . Accretion of heavy metals in lichens is good documented ( Bargagli and Mikhailova, 2002 ) . Lichen tissue analysis likely arose from physiological probes into the consequence of heavy metals on lichen metamorphosis. Experimental work over the period from 1970-1985 by a group of lichen physiological ecologists, chiefly based at Laurentian University in Sudbury, determined the precise relationship between elemental consumption, storage and lichen metamorphosis ( Richardson and Nieboer, 1983 ; Richardson and Puckett, 1973 ) . The function of lichens as collector the heavy metals of assorted hint elements in atmospheric deposition, and tissue analyses have efficaciously characterized their spacial and temporal deposition forms has been studied by several research workers such as ( Garty, 2001 ; Walker et al. , 2003 ) . Harmonizing to Baker ( 1983 ) cited in Contti and Cecchetti ( 2001 ) there are many factors that influence the accretion of metals of workss such as the handiness of elements, the features of workss such as type of reproduction. Therefore, the grade of tolerance to heavy metals is characteristic of each lichen species ( Carreras and Pignata, 2007 ) . Neiboer et Al. ( 1976 ) indicated a big scope in the elemental consumption of lichens that varied harmonizing to elemental features of the substrate and environmental factors, notably a tenfold addition in metals in relation to distance from smelters. Metallic elements and sulfur dioxide behave otherwise and are expected to hold differing radioactive dust forms ; nevertheless Rossbach et Al. ( 1999 ) demonstrated a additive correlativity between the element concentration in lichen stuff and the reciprocal of the distance from the emanation beginnings. However, an equal consideration of topography, substrate and meteoric conditions must b e considered to explicate fluctuation. Different species have different ability to absorb considerable sums of heavy metals ( Mokhtar et al. , 2006 ) . For illustration Pawlik-Skowronska et Al. ( 2006 ) found that apothecia of Lecanora polytropa accumulated Cu up to 1.3 % ( d.m. ) , about 50 % of which was in an exchangeable signifier. Other than that a few surveies have shown that foliaceous species by and large had higher component tonss than shrubby species when collected from the same site ( Glenn et al. , 1995 ; Gough et al. , 1988 ; Lawrey and Hale, 1981 cited in Clair et al. , 2002 ) . Assorted analytical techniques have been attempted by many research workers to increase cognition on the bonding procedure which is interaction between lichen and metal. One of them is electron paramagnetic resonance. Although Conti and Cecchetti ( 2001 ) reported that there was missing cognition in understanding the full procedure that responsible in the accretion, but there were new attack late been introduced which is by utilizing microcalorimetric technique with the purpose of obtaining enthalpic measuring informations ( Antonelli et al. , 1998 ) . As a consequence the tendency established a good correlativity between the metal bond and heat content values in metal consumption. For illustration tendency for Evernia Prunastri Pb & gt ; & gt ; Zn & gt ; Cd? Cu? Cr ( Conti and Cecchetti, 2001 ) . The algal spouse has been reported to respond more sensitively e.g. , to acidic deposition and heavy metals, and to demo changing accretion of metals depending on the sourness of precipitation ( Tarhanen et al. , 1999 ) . Sporadic dehydration of lichens may besides hold an consequence on the accretion and soaking up of elements ( Puckett, 1988 ) . After a dry period, rainfall may ensue in appreciable rinsing off of atoms and the exchange of cations bound on negatively charged exchange sites on the cell walls and plasma membranes of the cells ( Bargagli, 1998 ) . The rapid, exchangeable procedure of metal adhering to cell walls in metal consumption by lichens has been extensively studied in the research lab ( Brown, 1976 ; Goyal and Seaward, 1982 ; Nieboer and Richardson, 1981 ; Nieboer et al. , 1978 cited in Wolterbeek et al. , 2003 ) . Several surveies have been conducted to mensurate the deposition of atmospheric in lichen. France and Coquery ( 1996 ) , for illustration measured deposition of atmospheric lead and compared them to lichen thalline contents from the high Arctic utilizing flameless atomic surface assimilation spectrophotometry. They found that the concentration of 2 ug g-1 dry weights to be the lowest degree found in lichen and established a latitudinal gradient in lead, with a clear form in diminishing Pb concentrations in lichens with increasing latitude throughout Canada. Simple to complex methods for finding the concentration of ions in lichen tissue have been developed for decennaries and it is widely accepted that tissue concentrations in most lichen species shows a precise relationship with deposition of particulate and ambient air concentrations of gaseous pollutants ( Seaward, 1992 ) . Entrapment of atoms contains metals which known as airborne pollutants accumulate in lichens by both moistures and dry deposition ( Nash, 1996 ) . Wet deposition involves any sort of precipitation event that washes airborne aerosols and particles out of the air, while dry deposition involves the settling out of airborne gases or atoms due to the increasing influence of gravitation with diminishing air current velocity ( Knops et al. , 1991 ) . Another beginning of elements such as dirt atoms deposited by windblown on lichen thalli may be accumulated by some lichens. Smaller deposited atoms may go trapped in the lichen thalli of species with big intercellular infin ites ( Collins and Farrar, 1978 cited in Clair et al. , 2002. However, when the concentration of metals is high plenty to go toxic, they themselves cause harm to the lichen thalli. As a consequence, several physiological mechanisms of response to air pollutants in lichens are altered, and therefore alter their original sensitiveness or tolerance to gaseous compounds like SO2, NOx, and O3 ( Carreras and Pignata, 2007 ) . These compounds affect the status of lichens and therefore cut down the capacity of lichens to roll up and absorb elements from the ambiance. Heavy metals have besides been found to impact e.g. , the permeableness of the cell membranes of lichens ( Tarhanen et al. , 1996 ) .2.8 Factors considerationHeavy metal content in lichen thallus tends to jump over clip in stages of accretion and subsequent release. Szczepaniak and Biziuk ( 2003 ) listed the factors that influence the metal soaking up in lichens which are acerb precipitation, geographical fluctuations such as height, temporal alterations for illustration seasonal fluctuati ons, dirt dust, local pollution beginnings, long-range conveyance. Climatic factors likely play of import function in the bioaccumulation of heavy metals, even if this yet ill-defined. Aptroot and new wave Herk ( 2007 ) provide increasing grounds that clime alteration is an of import factor, partially based on grounds from the algal spouse, much neglected in about all surveies, even though it is normally most sensitive to pollutants. The way in which the pollutants are transported by wind way is most surely cardinal in finding their chief radioactive dust point ( Conti and Cecchetti, 2001 ) . Accretion of heavy metals in lichens is a dynamic procedure. Probe on the effects of extra metals showed that lichens soaked into metal solutions accumulated metals rapidly within a few hours. Observation on some metals such as Cu showed maximal accretion after 3- 6 H ( Monnet et al. , 2006 ) . In organ transplant surveies indicated that most lichens respond to alterations in atmospheric heavy metals within a few months. It took 2-5 old ages to measure the elements in lichen thalli ( Walther et al. , 1990 ) . Although it expected that the heavy metal content of lichens would increase as the clip addition, but the state of affairs is truly much more complicated. Surveies from Backor and Loppi ( 2009 ) showed that contents of several elements in transplanted lichens go up and down during the survey period. This is because the contents of these elements are, at least partially, controlled by physiological procedures and turnover mechanisms ( Bergamaschi et al. , 2007 ) . Furthermore, metals can be removed by rainwater which remove polluting atoms on the thallus surface ( Brown and Brown, 1991 ) ensuing in lower content during periods of rain and higher content in the dry season. Other than that, the water-leachable fraction ( deposited plus intercellular ) is by and large assumed to stand for chiefly metals originated from dry deposition, and the elements present in leachates show distinguishable temporal forms with concentrations being normally higher in summer than in winter ( Boonpragob and Nash, 1990 ) . However, because lichens are more active metabolically when moisture, winter months are suited to growing and mineral consumption ( Nash and Gries, 1995 ) . Not merely the water-leachable fraction contributes the uneven of the concentration, rainfall besides amply contributes to the entire component content of lichens ( Knops et al. , 1991 ) . Both of the procedure could bring forth temporal differences in metal contents in malice of changeless pollution tonss, nevertheless the concentrations in lichen thalli chiefly varies harmonizing to sums of incident pollutants. These may bring forth a high sum of biological emphasis, therefore alter element consump tion ( Bergamaschi et al. , 2007 ) . Besides that, the clip exposure of lichens transplanted into contaminated countries besides takes a count in the accretion of elements procedure. This is because it influences the verve of thalli and accordingly the active procedures of element consumption. Garty ( 2001 ) noted that in order to find the minimum exposure required to bring forth important alteration, the critical period of exposure remains unknown particularly in the absence of time-studies. Short exposure times of 1-3 months are by and large sufficient to impact transplanted lichens. When the exposure is longer, they become saturated with the elements, lose biomass, surface constructions change and alter physiological public presentation ( Bargagli and Mikhailova, 2002 ) . Other factors are the constructions of lichen itself influence the metal consumption. Their physical features such a surface construction, adhesion and water-holding capacity of thalli besides affect metal accretion in lichens ( Brown and Beckett, 1985 ) . Richardson ( 1995 ) observed that pores and holes on the cerebral mantle, which could pin down atoms or let them to come in inside the thallus, in some species may be sealed by polymers, likely including lichenins and isolichenins. In contaminated countries, the concentration of hint component in the peripheral ( younger ) of foliaceous lichens may be lower than cardinal ( older ) portion of the thallus because of the greater exposure times experienced ( Bargagli et al. , 1987 cited in Backor and Loppi, 2009 ) . This comparing has been studied by ( Loppi et al. , 1997 ) , where they used Flavoparmelia caperata thalli from an uncontaminated country of cardinal Italy. They found out that there was extremely variable and contents of s everal elements ( As, Cr, Fe, Hg, Mn, Ni, Sb ) were similar. Backor and Loppi ( 2009 ) suggested that the concentration in cardinal thallus parts were higher because the elements are trapped in the myelin. The indispensable elements for metamorphosis which is Co, Cu, Mo, and Zn were concentrated in the peripheral parts which are the metabolic activities are most active. This suggests that metals can travel from one portion of the thallus to another. However a few surveies have shown that foliaceous species by and large had higher component tonss than shrubby species when collected from the same site ( Glenn et al. , 1995 ) Altitude seems play of import function for some elements. Study has been done on hypogymnia physodesof on lead ( Pb ) and Cd ( Cd ) concentration ( Kral et al. , 1989 cited in Conti and Cecchetti, 2001 ) . He found that concentration of Pb and Cd addition as the height increase up to 900-1100 m. at higher height, Cd concentration tend to diminish. Therefore, this species of lichen is suited to measure the metals uptake in position of its high-tolerance capacities ( Jeran et al. , 1996 ) . The ground for this is likely because of the different sum of precipitation, and deposition of more soluble elements ( Kral et al. , 1989 cited in Conti and Cecchetti, 2001 ) . Another factor is related to the species of lichen. Wolterbeek et Al. ( 2003 ) noted that different species contain changing sums of metals even at the same palce. It is obvious that the sum of metal contained by lichen is species-dependent. Upreti and Pandey ( 1994 ) described this statement by made comparing between Umbilicaria decussata and U. aprina in Antarctica. From the consequence, they found out that the lichen Umbilicaria decussata collected contained more Pb and Fe than U. aprina in the same site. This difference was attributed to the thin thallus of U. decussata which makes for a high ratio of surface country to dry weight as compared with U. aprina. Temporal alterations such as season fluctuation besides contribute to the rate of metal consumption. Basically high concentration of heavy metals found in thallus after summer twenty-four hours. This is due to the increased hydration that consequences from autumn rainfall ( Nieboer et al. , 1978 cited in Conti and Cecchetti, 2001 ) . Loppi et Al. ( 1997 ) studied the hint component content in Mediterranean clime. As the accretion non being washout, they found out that it is strongly influenced by the dirt dust taint. On a smaller graduated table, lichens turning on stray trees contain higher sums of heavy metal-rich atoms than those in heavy tree bases. Even in single trees, heavy metal accretion depends on the extent of stemflow on a peculiar side and is normally higher close land degree ( Bargagli and Mikhailova, 2002 ) . In general, much polluted countries have merely really tolerant species ; clean air-areas have a much higher natural diverseness of lichens including several that are highly sensitive to little measures of sulfur dioxide.Chapter 3Methodology2.1 ApparatusThe setup that being used for carry oning the analysis are beaker ( 250 milliliter ) , analytical balance, 0.45  µm glass fibre filter paper, volumetric flask ( 50 milliliter ) , pipette ( 10ml ) , forceps, Teflon vas, micro-cook digestion system ETHOS 1 Milestone, and extractor tubing ( 15 milliliter ) .2.2 ChemicalsThe chemicals used for this analysis show in table 2.2 Table 2.1 list of chemicals usedChemicalsDeionize H2OAzotic acid ( HNO3 ) ( 65 % )Hydrogen Peroxide ( 35 % )Standard solution Standard 3 concentration 10 µg/ml2.3 Quality Control ( QC ) and Quality Assurance ( QA )Quality confidence and quality control play of import functions for carry oning analysis of research. Both of them must be following in order to find, calculate and guarantee the systematic and random error in planning, trying, analysis and information reported. Quality control is certain be aftering for the whole research lab operation such as aggregation method and manages informations and samples through criterion processs which help in obtaining a good information, dependable and have high assurance degree. On the other manus, quality control is a set of processs in methodological analysis such as the sampling method and analysis for guaranting that the procedure is under control, which is follow the right standard process guideline. Preciseness and rightness are of i mport in QC. In this survey, day-to-day public presentation study was used to measure the public presentation of ICP-MS and its surrounding. The study contains the value of strength, the preciseness, sensitiveness, interventions and the background of environing. These standards are of import to cognize the laboratory status and instrument used which can impact the public presentation. From the study obtained, these standards are under standard given. This indicates that the status of its surrounding is good. Other than that, the standardization curve determines the concentration of the samples whether within the criterion or non. A one-dimensionality cheque was made after the standardization by analyzing the rectification coefficient of the curve. The best for coefficient curve is 1. Table Besides that, the rinse out survey is performed to do certain that carry over does non impact readings after the debut of a solution of higher concentration. This can be done in the proper rinse times.2.4 Description of survey countryBukit Larut once known as Maxwell Hill is a upland located 10 kilometer from Taiping, Perak, Malaysia. It was founded in 1888 and is Malaysia ‘s oldest hill resort. Its tallness about 1250 m above sea degree and the temperature is about the same as Fraser ‘s Hill, between 19-25 °C. Bukit Larut was the wettest portion of the state as it receives the highest rainfall in the state. It was foremost founded by William Edward Maxwell who was appointed as Assistant Resident of Perak in 1875 to function as a cool retreat for colonial functionaries from the humidness of the Lowlandss. Not every bit developed as the popular upland such as Cameroon Highland and Genting Highland, Bukit Larut retain their good environmental quality as nature has been left on its ain to boom bounteously. It is widely known by Green Peace Lover, Botanical Scientists, and Flora and Fauna Specialist World Wide. Taiping was a beautiful basin, surrounded by exuberant tropical jungle and exalted hills. Gazetted as a lasting wood modesty in 1910, Bukit Larut ‘s untasted mountain woods are filled with bird life, with squirrels and Gibbons roam around freely. There were 100s and 1000s of rare species of vegetations and zoologies which barely to happen anywhere else. This topographic point is popular particularly with nature lovers, bird spectators, twenty-four hours trippers looking for a placid pickup.2.5 Sample readyingTwenty samples from different species of lichens were collected utilizing fictile knife to avoid any metals taint. The samples so transferred and sealed in airtight in nothing lock bags. Lichens should non be air-dried in countries subject to taint such as roads and dust degrees are high. The samples need to be rinsed before being dried at room temperature for 24 hours. Then the samples are dried in the oven for 12 hours at temperature 50 °C and let to be cooled in room temperature. After that, the sample crushed into little pieces and maintain in polyethylene bottle and labeled.2.6 Microwave assisted acid digestionThe sample must be prepared in solution signifier before analysis.The samples were digested utilizing ETHOS 1 Milestone microwave system. This method is applicable to the microwave assisted acerb digestion on biological. The specification of the microwave is show on table 2.2 Table 2.2 Specification of ETHOS 1 Milestone microwave systemItemSpecificationHNO365 % – 70 %Maximal temperature200  °CTemperature control ATC detector length180  µmMaximal force per unit area30 saloon ( 435 pounds per square inch )Vessel stuffTFM TeflonVessel volume75 milliliterMaximal reagent volume35 milliliterCover stuffTFM TeflonVessel weight? 250 gThis method is applicable for the undermentioned elements in table 2.3 Table 2.3 The elements applicable utilizing the microwave assisted systemElementssAluminumCopperSilverAntimonyIronSodiumArsenicLeadStrontiumBoronMagnesiumThalliumBariumMangeneseVanadiumCadmiumMercuryCalciumMolybdenumChromiumNickelCobaltPotassiumCopperSelenium2.6.1 Interventions2.6.1 Gaseous digestion reaction merchandises, really reactive, or volatile stuffs that may make high force per unit areas when heated and may do discharge of the vass with possible loss of sample and analytes. The complete decomposition of either carbonates, or C based samples, may do adequate force per unit area to vent the vas if the sample size is greater than 0.25 g. 2.6.2 The utilizations of several digestion reagents that are necessary to either wholly decompose the matrix or to stabilise specific elements may restrict the usage of specific analytical instrumentality methods. Hydrochloric acid is known to interfere with some instrumental analysis methods such as fire atomic soaking up ( FLAA ) and inductively coupled plasma atomic emanation spectroscopy ( ICP-AES ) . The presence of hydrochloric acid may be debatable for graphite furnace atomic soaking up ( GFAA ) and inductively coupled plasma mass spectroscopy ( ICP-MS ) . Hydrofluoric acid, which is capable of fade outing silicates, may necessitate the remotion of extra hydrofluoric acid or the usage of specialised non-glass constituents during instrumental analysis. Method 3052 enables the analyst to choose other decomposition reagents that may besides do jobs with instrumental analyses asking matrix matching of criterions to account for viscousness and chemical differences.2.6.2 Reagent ch oiceMethod 3052 allows the analyst to choose specific reagents for specific matrices and analytes of involvement. Typically 9.0 milliliter of azotic acid are placed in the reaction vas with the sample, and a combination of other reagents such as hydrochloric, hydrofluoric, or H peroxide may be added based on matrix and peculiar analytes. Hydrofluoric and hydrochloric acids are both used as complexation reagents particularly in the presence of silicates and cherished metals severally. The usage of H peroxide enhances the oxidization belongingss of azotic acid particularly in the digestion of organics. Nevertheless peroxide may be used in all digestions, nevertheless be cognizant of the increased responsiveness with organic stuffs. The following table suggests reagents and their ratios utilizing method 3052. Table 2.4 reagents and their ratios utilizing method 3052Reagent and volume ( milliliter )MatrixHNO3HafniumHClH2O2Dirt9321Sediment9321Biological9012Botanic90.50.51Waste oil90.50.522.7 Sample digestion0.1g sample of lichen is weighed out in the reaction vas. 10 milliliter of azotic acid are so added to each vas. Then 1.0 milliliters hydrogen peroxide is added for complete oxidization of organic affair. Both of the reagents were added in a fume goon to avoid the inspiration of the vapour gas that arises. As for the mention vas or the clean sample, it is the same manner as the readying for sample but non include the sample. The vas is allowed to respond for about one minute prior to sealing the vass to homogenise the sample. The vas decently topographic point in the microwave system harmonizing to the maker ‘s recommended specifications and connect appropriate temperature and force per unit area detectors to vass harmonizing to maker ‘s specifications. Both detectors allow m onitoring and controlling of both external and internal temperature of all vass in existent clip during the digestion. Vessels should so be placed in the rotor and placed in the microwave. After that, the vass heated with 120 °C for temperature at 850W for one hr. Following, the vas allowed to be cooled before uncap. Carefully, the sample solution so transferred into centrifuge tubing.2.8 Laboratory analysisAfter samples were digested in close vas, the solution so filtered utilizing 0.45 µm Glass Fiber Whatman filter paper. The solution so transferred into a 50ml volumetric flask and diluted with deionized H2O. Finally, the solution analyzed by utilizing Inductively Coupled Plasma Mass Spectrometry ( ICP-MS ) Perkin Elmer Series 200.2.9 Elemental analysis2.9.1 Inductively Coupled Plasma Mass Spectrometry or ICP-MSInductively Coupled Plasma Mass Spectrometry or ICP-MS is an analytical technique used for elemental analysis with first-class sensitiveness. The ICP-MS instrument empl oys argon plasma ( ICP ) as the ionisation beginning and a mass spectrometer ( MS ) , normally with a quadrupole mass filter, to divide the ions produced. It can at the same time mensurate most elements in the periodic tabular array and find analyte concentrations down to the subnanogram per litre, or parts per trillion ( ppt ) , degree. It can execute qualitative, semiquantitative, and quantitative analysis, and compute isotopic ratios on H2O samples, and in waste infusions and digests. Figure 1 shows a conventional representation of an ICP beginning in an ICP-MS. In an ICP-MS instrument, liquid samples are introduced by a peristaltic pump to the atomizer where a sample aerosol is formed. A double-pass spray chamber ensures that a consistent aerosol is introduced to the plasma. Argon gas is introduced through a series of homocentric vitreous silica tubings, known as the ICP torch. The torch is located in the centre of a wireless frequence ( RF ) spiral. A Tesla spiral ionizes the Ar gas and free negatrons are accelerated by a 27 MHz wireless frequence field. Collisions between the accelerated negatrons and the Ar gas bring forth a high-temperature plasma. The sample aerosol is outright decomposed in the plasma to organize analyte atoms, some of which are ionized. The ions produced are extracted from the plasma into the mass spectrometer part, which is maintained at a high vacuity ( typically 10-6 millimeter of mercury ) utilizing differential pumping. The analyte ions are extracted through a brace of openings, about 1 millimeters in diameter, known as the trying cone and the skimmer cone. The analyte ions are so focused by a series of lenses into a quadrupole mass analyser which separates the ions based on their mass-to-charge ratio ( m/z ) . Finally, ions are detected utilizing an negatron multiplier, and informations at all multitudes are collected and stored through a computing machine interface. The mass spectrum generated is highly simple. Each elemental isotope appears at a different mass ; for illustration, 111Cd would look at 111 amu whereas 113Cd would look at 113 amu, with peak strengths straight relative to the initial concentration of each isotope. Despite the easiness of usage and first-class sensitiveness of this method, quantitative ICP-MS measurings are prone to matrix effects and other interventions that must be considered. For illustration, the presence of high chloride degrees in the sample will ensue in the formation of 40Ar35Cl+ , a molecular ion that interferes with the finding of 75As, the merely of course happening isotope of arsenic. Other factors, such as the concluding concentration of an acid used to fade out the sample, can impact the signal. The method of standard add-on can counterbalance for most of these effects, but this is a time-consuming attack and is non suited for big Numberss of samples. Another scheme that may assist is the usage of an internal criterion component with a mass and ionisation energy similar to that of the analyte. A combination of these attacks will be used in this experiment. ICP-MS can observe a really low concentration. Table 2.9.1 show the sensing bound for a broad assortment of elements. Table 2.5 sensing bound for elementsComponentsuggested wavelength ( nanometer )appraisal sensing bound ( ug/L )standardization concentration ( mg/L )upper bound concentration ( mg/L )aluminum308.224010100arsenous anhydride193.7 & lt ;Essay Writing Service Fully referenced, delivered on clip, Essay Writing Service.Assignment Writing Service Everything we do is focussed on composing the best possible assignment for your exact demandsTaging Service Our Marking Service will assist you pick out the countries of your work that need betterment.