Ozone Essays - Gases, Greenhouse Gases, Ultraviolet Radiation

Ozone Ozone derives from the greek word ozein which means to smell. It was first discovered in 1839 by Christian Friedrick Schonbein who noticed it because of its distinctive acrid smell. He discovered this at the University of Basel in Switzerland. Ozone is merely oxygen, but not the type we breath. Ozone, O3 has three compounds while oxygen has only two. Ozone is reac- tive, meaning it does not stay still, and wants to go back to its original state, with two compounds, O2. This is why ozone is harmful. Ozone always wants to let go of its third compound, and if this compound reacts with other substances, it could be damaging, especially to humans. When discussing with the ozone layer, one should know the four major atmosphere levels on earth. The troposphere which is between zero and fifteen kilometers in altitude and has tempera- ture ranges from two hundred to two hundred ninety kelvins. The second is the stratosphere which ranges from fifteen to approxi- mately fifty kilometers in altitude and has temperature ranges from two hundred to two hundred fifty kelvins. The third level in the atmosphere is mesosphere. This level ranges from fifty to eighty-five kilometers in altitude and has temperature ranges between one hundred eighty and two hundred fifty kelvins. Finally, the thermosphere is the final level in the atmosphere. It's range is eighty-five to one hundred forty kilometers and also temperatures as high as four hundred sixty kelvins. Society has been widely addressed with the many problems that we are having in our environment today. A major problem is that of CFCs. CFC stands for Chlorofluorocarbons which are found in many of the aerosol spray cans. In December of 1973, Rowland and Molina discovered that CFCs can destroy the ozone in the stratosphere. In June 1975, the Natural Resources Defence Council (NRDC) sued the Consumers Product Safety Commission for a band of CFCs used in aerosol spray cans. United States's fifth largest manufacturers of aerosol sprays announced that they will reduce the amount of CFCs used in there products. But as things started to get better, The Consumer Product Safety Commission rejected NRDC's law suit in July stating that there was insufficient evidence towards the amount of harm the CFCs were doing to the ozone layer. On September 1976, a report was released which re-enforced Rowland and Molina's hypothesis, but also stated that the govern- ment action on CFC regulations should be postponed. This report also stated that the CFCs can initiate climatic changes and contribute to the warming of the earth's atmosphere, i.e., the greenhouse effect. May 1977, several government agencies announced joint plans to limit, but not eliminate uses of CFCs in aerosol spray cans. But on February of the following year, the government decided to postpone the regulations on CFCs used in refrigeration, air conditioning, solvents, and other industrial processes. With all the new regulations taking affect and being postponed, nothing was getting accomplished, but finally, on October 1978, aerosols where banned in the United States. August of 1981, satellite pictures showed that over one percent of the ozone was lost due to CFCs. Then, in October of 1984, research groups found a forty percent loss of ozone over Antarctica. In August of 1985, satellite photos confirmed the existence of an ozone hole over Antarctica. Even though many were trying to reduce the amount of CFCs in their products, there were still some out there who wanted to make the fast buck. February 1988, three US senators asked Du Pont to stop making CFCs but the chairman denied the requested. Three weeks later, the chairman agrees to ease manufacturing of chemicals, but only when substitutes were available. Eight in a million of the widely scattered molecules are ozone in our atmosphere--this is what is responsible for the rising of temperature. Ozone takes in ultra-violet rays when they come from the sun and converts the radiation to heat and chemical energy. The ozone layer also seals earth from the many of the other powerful radiation rays that the sun gives off. Splitting of oxygen molecules depends upon the intense radiation, therefore, the greatest ozone production is over the tropics. The ozone is dangerous to us because is causes many types of skin cancer such as malignant melanoma--a very deadly cancer which causes death to forty percent of all recorded cases of cancer. Many people predict that the ozone layer would cause thirty thousand skin cancers just in the United States alone, and over five hundred-thousand world wide. Cancer, though, is only one of

Computers Are Making Users Sick †Health and Safety Essay

Computers Are Making Users Sick – Health and Safety Essay Free Online Research Papers Computers Are Making Users Sick Health and Safety Essay Almost half of all PC users in the UK have experienced health problems caused by using computers, research has found. According to a poll conducted by computer retailer PC World, eye strain was the most common problem associated with computer use, suffered by 25 per cent of users. About 15 per cent had experienced back pain, while headaches were experienced by 14 per cent of users. Of those surveyed, 11 per cent cited wrist pain and 10 per cent shoulder pain caused by prolonged PC use. A PC World representative said that health and safety guidelines introduced in UK businesses had not trickled down to home users. â€Å"It’s too easy to compromise your health. Adopting a simple routine of looking up, easing up or stretching and ultimately getting away from the PC can help you to avoid some of the aches and pains caused by extended use,† he said. In an average day, 18 per cent of people spend two or more hours using a PC at home, and 15 per cent at work. Two in five respondents took no breaks in two hours of PC usage. Respondents were also asked whether they used any of a range of products including flat-screen monitors, which help minimise eye strain, and ergonomic keyboards and mousemats. The majority of home users, 59 per cent used none of these products, with 54 per cent at work also using none. The most popular product was the mousemat with wrist rest, with 27 per cent of home PC users and 31 per cent at work using these products. Monitor screens designed to minimise glare were used by 14 per cent at home while six per cent were using ergonomic keyboards. In conjunction with the charity AbilityNet, PC World said it would launch a campaign to raise awareness of good computing practice to minimise the health risks associated with PC use.AbilityNet hopes to raise awareness of the health risks of PC use. Research Papers on Computers Are Making Users Sick - Health and Safety EssayInfluences of Socio-Economic Status of Married MalesTwilight of the UAWMarketing of Lifeboy Soap A Unilever ProductGenetic EngineeringThe Project Managment Office SystemNever Been Kicked Out of a Place This NiceIncorporating Risk and Uncertainty Factor in CapitalThe Relationship Between Delinquency and Drug UseHip-Hop is ArtDefinition of Export Quotas

Changing Views on Homosexuality

Men and women are feeling more open to express their homosexual lifestyle and this is in part due to the changing views of sexual behavior and homosexuality. Homosexual behavior is defined as sexual behavior with a member of one’s own sex (Sarason Sarason, 2005). Prior to the 1970s, homosexuality was considered to be a diagnosable psychiatric disorder and was listed in the DSM (Diagnostic and Statistical Manual of Mental Disorders). Homosexuality was viewed almost as a disease that people needed to be cured of. Research revealed that homosexual men and women did not differ in psychological adjustment from heterosexual men and women (Sarason Sarason, 2005). There has been the debate of whether a person is born gay or if homosexuality is a learned behavior. In my opinion, I believe that a person is born gay and does not chose or learn this sexual behavior from others. I’ve witnessed a relative grow up and noticed behavior as child that suggested he may be gay. As an adult, he informed the family that he is in fact gay. This came as a shock to no one and when asked when he knew he was gay, he stated that he knew all along. It is thought that if people no longer viewed homosexuality as a behavior that people chose to partake in, that less emphasis would be placed on trying to â€Å"cure† homosexuality. Dr. Glenn Wilson and Dr. Qazi Rahman, authors of the book Born Gay, state that there is no single gay gene, but genes do contribute and consider the effect of sex hormones to which fetuses are exposed in the womb (Ahuja, 2005). Wilson and Rahman feel that sexual orientation is fixed at birth and that any evidence-based scientist would agree (Ahuja, 2005). With more people understanding that sexual orientation is innate rather than learned, viewpoints on homosexuality are shifting. Our society is slowly becoming more accepting and placing less of a stigma on homosexual behavior. In the past there were no rights for gays wanting to marry, but now gays in Massachusetts can legally marry. In Vermont and other parts of the world, gay men and women now have the right to enter into legal partnerships that give them some of the same protections and responsibilities of marriage (Sarason Sarason, 2005). Past opinion polls have resulted in some Americans saying that gays cannot be considered good role models for children (Sarason Sarason, 2005). Some people have thought that a child’s sexual orientation could be affected if the child had gay or lesbian parents. Research on child adjustment in homosexual households provided results that did not differ from children raised by heterosexual parents (Sarason Sarason, 2005). Dr. Ellen C. Perrin feels that children raised by gay or lesbian couples do just as well as children raised as by heterosexual couples. â€Å"In some ways children of same-sex parents actually may have advantages over other family structures†, says Perrin (Chang, 2005). Studies conducted on homosexual couples show that lesbian couples share household responsibilities equally and that children adjust better when there is an equal division of labor (Chang, 2005). Raising healthy, well-adjusted children and understanding that homosexuality is an innate behavior are just two examples of why attitudes towards homosexuality are changing. Although there is still room for improvement in terms of accepting gay culture, strides are being made compared to earlier attitudes. To me the most significant change is understanding that homosexuality is not a disorder, it represents a person’s sexual orientation. References http://www.webmd.com/mental-health/news/20051012/study-same-sex-parents-raise-well-adjusted-kids Changing Views on Homosexuality Men and women are feeling more open to express their homosexual lifestyle and this is in part due to the changing views of sexual behavior and homosexuality. Homosexual behavior is defined as sexual behavior with a member of one’s own sex (Sarason Sarason, 2005). Prior to the 1970s, homosexuality was considered to be a diagnosable psychiatric disorder and was listed in the DSM (Diagnostic and Statistical Manual of Mental Disorders). Homosexuality was viewed almost as a disease that people needed to be cured of. Research revealed that homosexual men and women did not differ in psychological adjustment from heterosexual men and women (Sarason Sarason, 2005). There has been the debate of whether a person is born gay or if homosexuality is a learned behavior. In my opinion, I believe that a person is born gay and does not chose or learn this sexual behavior from others. I’ve witnessed a relative grow up and noticed behavior as child that suggested he may be gay. As an adult, he informed the family that he is in fact gay. This came as a shock to no one and when asked when he knew he was gay, he stated that he knew all along. It is thought that if people no longer viewed homosexuality as a behavior that people chose to partake in, that less emphasis would be placed on trying to â€Å"cure† homosexuality. Dr. Glenn Wilson and Dr. Qazi Rahman, authors of the book Born Gay, state that there is no single gay gene, but genes do contribute and consider the effect of sex hormones to which fetuses are exposed in the womb (Ahuja, 2005). Wilson and Rahman feel that sexual orientation is fixed at birth and that any evidence-based scientist would agree (Ahuja, 2005). With more people understanding that sexual orientation is innate rather than learned, viewpoints on homosexuality are shifting. Our society is slowly becoming more accepting and placing less of a stigma on homosexual behavior. In the past there were no rights for gays wanting to marry, but now gays in Massachusetts can legally marry. In Vermont and other parts of the world, gay men and women now have the right to enter into legal partnerships that give them some of the same protections and responsibilities of marriage (Sarason Sarason, 2005). Past opinion polls have resulted in some Americans saying that gays cannot be considered good role models for children (Sarason Sarason, 2005). Some people have thought that a child’s sexual orientation could be affected if the child had gay or lesbian parents. Research on child adjustment in homosexual households provided results that did not differ from children raised by heterosexual parents (Sarason Sarason, 2005). Dr. Ellen C. Perrin feels that children raised by gay or lesbian couples do just as well as children raised as by heterosexual couples. â€Å"In some ways children of same-sex parents actually may have advantages over other family structures†, says Perrin (Chang, 2005). Studies conducted on homosexual couples show that lesbian couples share household responsibilities equally and that children adjust better when there is an equal division of labor (Chang, 2005). Raising healthy, well-adjusted children and understanding that homosexuality is an innate behavior are just two examples of why attitudes towards homosexuality are changing. Although there is still room for improvement in terms of accepting gay culture, strides are being made compared to earlier attitudes. To me the most significant change is understanding that homosexuality is not a disorder, it represents a person’s sexual orientation. References http://www.webmd.com/mental-health/news/20051012/study-same-sex-parents-raise-well-adjusted-kids

Mens Health Magazine Research Case Study Example | Topics and Well Written Essays - 1750 words

Mens Health Magazine Research - Case Study Example This cause may be based on observed phenomena that are directly or indirectly related to the deteriorating status of Americans' health. The next step is to establish a hypothesis to rationalize some feature of the observations (Hopper, K., 2008). Again, as far as hypothesis is concerned, the magazine's review has enough reason to speculate that children's overall health is parallel to the general lifestyle of its environment, either sanctioned by the government or common customs. The magazine has enough reasons to suspect that comparing cities' lifestyles would determine the status of children's health in these cities. The last step of the scientific method is to meticulously test the hypothesis (Hopper, K., 2008). Keep in mind that hypotheses cannot be proven (Samdahl, D. M., 1997). One can only fail to refute it. As early as now, one may actually say that Men's Health Magazine's review on the fittest and fattest cities for kids is a theory that is neither proven nor unproven. Facts about this statement will be discussed below. As a requirement, scientific method eliminates a hypothesis if tests constantly contradict the prediction. A hypothesis is only as valuable as its capacity to consistently forecast test outcomes no matter how great a hypothesis sounds. One should also remember that a hypothesis or prediction is not important if it is not testable and quantitative (Samdahl, D. M., 1997). Men's Health Magazine's theory is valid, quantitative, and testable. However, scientific method was not used quantifying and testing the publication's theory. The results are also not reliable and tend to change with a little addition or subtraction of the original data gathered. Men Health Magazine's review was based on these collected data: report by the Centers for Disease Control and Prevention, reports by the American Heart Association and the National Association for Sport and Physical Education, statistics of winners of the President's Challenge, statistics by the CDC and Claritas, statistics by Economic Census, and the magazine's survey on the amount of fast food consumed within a month (Colleti, J., 2007). All these were quantitative researches on adults' lifestyle --- their exercise habits and eating habits --- and percentage of overweight adult population. Other data collected were reports on the number of fast-food restaurants per capita and sports activities (Colleti, J., 2007) offered to each child. A quantitative type of research would have been sufficient for this review except for the fact that all data gathered were mostly reports on adults' lifestyle. It is like judging a building based on the engineer, without consideration to other essential factors such as the owner's budget for the construction, the timeframe given to finish the structure, etc. While it may be commonly agreed that corpulence is contagious and children have Research Methods 4 a tendency to mimic their adults (Snyder, C., 2007), focusing on this principle does not constitute a solid review. As far as health lifestyle is concerned, the

Management Practice Coursework Example | Topics and Well Written Essays - 2000 words

Management Practice - Coursework Example Gaurav Agrawal is having a master's degree in Microbiology and also he is Master of Business Administration (MBA) in Operation Management. General Manager joined this company when the economic condition of the company was not good. And the business is limited to United States only. Soon after joining General Manager called a meeting of its staff members and asked them to participate in suggestion schemes. These suggestion schemes are open to each & every employee of the organization. In the suggestion scheme, employees are invited to give their suggestion for improving the working condition of the organization. The employee who has given the best suggestion was rewarded by General Manager. These suggestion schemes are very helpful in improving the working environment of the organization. With the improvement with the suggestion scheme General Manager got the confidence of the staff members. Implementation of suggestion also helped in motivation of the employee in the organization. As the employees get motivated there is a sudden increase in the production yield. Also due to the motivation, all the production processes are completed in time. General Manager shares all the information to his staff members and also involves them in making a decision on a particul ar Project. If we see our future as a General Manager of the same organization then we need to understand & learn about the management skills from the existing General Manager. We need to know the "How General Manager is able to manage different kinds of situations". These all information can be found by discussing the different situations at different time interval with General Manager. Interview is the most common method for getting the information about a general manager. Interviewing General Manager: While interviewing General Manager it is necessary to draft the questionnaire before interview. The questionnaire helps you to ask the relevant question only. It helps in asking all the questions, so that no question will be left. The question should be prepared in such way, so that more & important information can be gathered. In the above case our objective is to get the following information related to General Manager: Personality and the manager's core values. Philosophy about work and management Leadership and mentoring of people Organizational Goals and objectives Social responsibility and company culture Discrimination, Sexual Harassment and Diversity IT, Internet, and Globalization. 1) Questions Related to Manager's Personality and Core Value: ME: Sir, Please let me know about your background. What did you do before Erth Ophthalmic Inc. GM: I have been at Erth Ophthalmic Inc. from last 14 years. Before this I was the Assistant General Manager for Sema Technology Inc. in New York. I was responsible for expanding its business in other countries, looking after working environment of the company, sales, marketing and services. Prior to that I was the Quality Manager for Sai Visison Care Inc. and looked after all the quality issues and customer satisfaction. ME: Sir, Please let me know about main vision associated with the organization. GM: The Company needs to focus on their employee satisfaction and the customer satisfaction. These are two major areas which are of major concern in an organization. Employee's satisfaction increases productivity and therefore makes a direct impact on customer satisfac

Management and Supply Function Essay Example for Free

Management and Supply Function Essay It should be emphasised from the outset that purchasing and supply management is executed as an integrated part of the firms broader management (as part of the logistics management or supply chain management approach) *Purchasing and supply PLANNING is part of the firms general planning, mainly because the continuous supply of raw materials components services is of a strategic importance to the enterprise. The supply market is just as important for the firms survival continued profitability as the sales market is the firms own product. Firms general planning must be integrated. *The ORGANISATIONAL STRUCTURE of the purchasing and supply function should be aimed mainly @ linking into the firms overall structure in the most effective way. The purchasing and supply function primarily renders a service to the enterprise. *Purchasing and supply COORDINATION should be aimed @ harmonising and aligning the activities of the purchasing and supply function with those of the other business functions. When a firm vests the authority for the purchasing and supply function in 1 person or team. Advantages: ;gt;Standardisation of materials and products is possible because purchases are made at one point ;gt;Purchasing and supply staff are afforded the opportunity to become experts ;gt;Control over all aspects of the purchasing and supply function is improved ;gt;Administrative costs are reduced by eliminating duplication DECENTRALISED PURCHASING ; SUPPLY ORGANISATIONAL STRUCTURE Purchasing by different departments, branches or plants, while each of them enjoys an important measure of autonomy of decision making regarding the purchasing and supply function. Advantages: ;gt;Better liaision can be effected between decentralised purchasing and supply functions and the user functions of individual plants served by the purchasing and supply function ;gt;The needs users can be better satisfied because the purchasing and supply function knows them better ;gt;Different plants maintain their autonomy. Plant managers are often fully responsible  for the profitability of individual plants. According to the combined approach, common requirements of the different plants such as equipment and certain categories of raw materials, are purchased centrally head of office. The plants purchasing and supply functions are assisted by corporate   purchasing and supply in developing policies, procedures, and control measures, recruiting and training staff, auditing the   purchasing and supply performance of the plants. The main coordinating mechanisms of purchasing and supply management with other functions in the organisation, and with suppliers and customers, are definitely computer systems such as electronic data interchange(EDI), materials planning (MRPII) and distribution requirements planning (DRP). TWO TYPES OF COORDINATION Between purchasing and supply and other functional areas Purchasing coordination is lateral acts in an advisory/support method to the other functions in the enterprise. Between p and s and the supplier system Two dimensions to the coordination between p and s function and the supplier system. Firstly there is coordination with the whole supplier system and secondly with the individual suppliers. The flow of products and services from the supplier has to be effective, the p and s function has to ensure that coordination between them and the supplier ensures this occurs. This can be achieved by means of supplier alliances, integrated systems and inter-organisational teams. The supplier must become an extension of the buying enterprise. The chief coordinating mechanisms available to p and s management are open communication, strategic alliances, integrated systems, the conscious motivation of suppliers and standardisation of specifications, purchasing documents and purchasing procedures. CONTROL : PERFORMANCE EVALUATION OF THE PURCHASING AND SUPPLYFUNCTION Control may be defined as a systematic attempt to reach objectives or set standards that accord with the enterprises goal, to observe actual perform- ance and compare it with the set standards, and to take corrective steps with a view to achieving the mission and goals of the enterprise. Objectives and basic principles of performance evaluation P and activities are complex, needs to have a control system. Feedback   on actual performance(measured against quantitative norms). This ensures that the p and s strategy is implemented at the various levels in the company. With this the p and s manager can monitor and improve the functions actual performance. Control ensures that all the other functions with p and s work optimally.

Lord Of The Flies Essay -- essays research papers

How mankind can’t survive without rules and laws   Ã‚  Ã‚  Ã‚  Ã‚   Could civilization live a normal and stable life, without any rules and orders to obey? Could you picture, New York City, with no laws to follow and everyone doing as they please? Just imagine the disasters that we will experience. In the novel, Lord of the Flies, written by William Golding, we see how each individual character reacts differently to the exposure of complete freedom from an organized society. Also, awe see how this separation from a structural society causes chaos among all these different characters.   Ã‚  Ã‚  Ã‚  Ã‚  The story begins with 20 pre-adolescent boys who are on an airplane and the airplane crashes on a remote jungle-island, which is a very effective setting to establish the idea of savagery. The setting of the story is very important because it shows how the boys are given their own paradise and destroy it. The airplane crew is killed and the boys are left on their own, with no adult supervision. At the beginning of the story, we meet the character, Ralph, the protagonist of the novel. Ralph is an example of the ethical citizen, intelligent and responsible but, on many occasions, is caught up in the opinion of others. The leadership that Ralph offers isn’t as stable and organized because he isn’t able to control the â€Å"littluns† and the others after a certain point. This is when the society that Ralph tries to create starts to break apart and Jack takes control.   Ã‚  Ã‚  Ã‚  Ã‚  Then immediately comes Piggy, a chubby asthmatic but intelligent kid, who becomes â€Å"friends† with Ralph. He is teased relentlessly by the other boys but is highly respected by Ralph for his ability to think. Piggy is considered the adult voice on the island, which often spoils the fun for the other boys. He also becomes Ralph’s right-hand man. Whenever Ralph can’t think straight, Piggy is there to put some common sense into him. Just like Ralph, Piggy wants to be rescued desperately. A while later, Ralph finds a conch. He then uses the conch to call upon the other kids. The conch is presented as a symbol of authority and order. It is used to summon all the boys from the island to the assembly and it gives its holder the right to speak. The conch also sets Ralph apart from the other boys and is what helps him be categorized as chief and leader. The c... ...ll Ralph because he feels that by doing this he will remain chief and leader and he will take away the idea of being civilized and having a democracy. Again we see how the fire symbolizes power but this time differently because instead of being used for survival and rescue it’s used as destruction and as a weapon for hunting. Jack uses the fire by burning a thicket where Ralph is hiding to be able to take him out. He then hunts him down to mount his head on the sharp stick like the pig’s head. Jack loses complete sense of his mind and is definitely stripped away from what is considered civilized. His immoral actions take the best of him and the others in the island and led them all to forget what is truly important, which is to be rescued. At the end, they are rescued and Ralph is saved from being killed from Jack and his tribe. The novel, Lord of the Flies, gives you, the reader, a clear image of how easily a society could fall apart if we allow ourselves to only live by the day and not care what tomorrow brings. Also, it shows how a society can’t survive without any rules to be followed and that there must be laws and rules in order, to have an established society to live in.