Online Courses: the Pros and Cons

Online Courses: The Pros and Cons By Melody More and more students are taking online classes. They are advertised on the radio, television, and billboards, promising convenience and opportunities. Even traditional universities are now offering online classes in conjunction with their normal â€Å"brick and mortor† classes. In actuality, online classes only appear to be easier and more convenient. Online course are more difficult and time-consuming than traditional classroom courses although they have afforded many bright and industrious students unprecedented opportunities to further their education.The stigma behind online classes has led them to be less respected than traditional classes. In an effort to increase enrollment, many universities advertise that they offer online courses in which a student can quickly and conveniently earn their degree. This has two potentially negative consequences. First, employers who have never experienced a classroom setting in an online env ironment assume that these degrees are not as reputable as those from schools that exclusively offer traditional courses. Secondly, students enroll in these online courses with the mistaken belief that they are going to be quick and easy.Unfortunately, this could not be further from the truth. Online classes are more time consuming than in-classroom courses. In almost all courses, participation makes up a portion of everyone’s grade. Most professors count participation points as 10% of a student’s total grade. This 10% can easily be obtained in a classroom environment where a student can speak to peers and professor about a particular topic. However, online courses use a discussion board for communication, where the students and professor post responses to a discussion.The continuous posting by the students and professor makes spelling, grammar, and punctuation an unprecedented factor in a student’s participation points. Although online professors typically over look spelling and grammatical errors when responding to students’ posts, they are liable to take away points. Most of the time they deduct participation points if the grammar and spelling is so bad that they cannot understand the point the student is attempting to make. Students whom normally struggle with spelling and grammar are forced to improve their writing skills.In turn, the necessity of grammar, spelling, and punctuation benefits a student’s overall education experience. Moreover, the increased writing in a classroom environment can be a double-edged sword. The replacement of writing rather than speaking in a classroom can yield a negative effect on a person’s life. Online environments inadvertently encourage social isolation. A student who may have had social challenges or anxiety about speaking in front of a group of people in the past can easily continue isolating themselves from others rather than facing their fears.When the student graduates, findin g employment can be increasingly difficult without these necessary interpersonal skills. The socially awkward alumnus of a particular university negatively represents their university and discredits other alumni that could be applying for the same position. Despite this potentially disastrous effect, there are opportunities online courses have presented to so many people around the world. Online courses open doors to people who would otherwise have to give up on their dreams of higher education.An example is a single mother who barely survives by working two jobs to provide for her children. She does not have the money to hire a babysitter while she attends night classes. However, with online classes, she can work on a college degree while her young children sleep. Online classes are more convenient for the worker that works until 3:00 am and has little time before and after work to study. Driven, disciplined, non-traditional students can derive great benefit from the ability to att end class when they can, wherever they have internet access.Furthermore, potential students should not shun the idea of online classes if it can help them further their education. Students who may be considering online classes should think carefully about what it is they need from a course. If they want to speak to a professor directly to get their questions answered, have the availability at the same time each week to attend a course, and prefer not to perform additional writing assignments each week, then an online course may not be for them.On the other hand, if a potential student works for a company that is not willing to work around a school schedule, childcare is not available, or they simply do not want to drive to class in the evening, an online course may be the perfect solution. There are many pros and cons that are part of the decision-making process on whether or not to take an online course. Taking an online course should not be a decision that a student jumps into wit hout carefully considering all the factors involved.

Inventions Between 1900 and 1930

the time period between 1900 and 1930 saw many technological innovations, from the air conditioner to the disposable razor blade. From the tank to the cruise missile. Many of these inventions made our lives easier while others made them more deadly. the first of these inventions is the air conditioner. While many inventers beforehand had made crude means of cooling the air, but all proved to be ineffective. the earliest method of cooling the air was putting bowls of ice in front of a fan and the resulting cool air cooled the room.On July 17th 1902 a young college graduate, Willis Havilland Carrier drew the plans for his first â€Å"Apparatus for treating air† which was granted its first patent in 1906. this great leap forward in human comfort was actually first made for a printing press where when it got humid it would cause the ink to smear. Carrier's method of cooling the air involved using coiled copper tubing filled with liquid ammonia, which when air was blown over the co ils would cause the moister to condensate giving him cool dry air.Cooling for human comfort, rather than industrial use, began in 1924, displayed by the three Carrier air conditioners installed in the J. L. Hudson Department Store in Michigan. in order to escape the heat the shoppers of Detroit all went to the â€Å"air conditioned† store. The rise in human cooling spread from the department stores to the movie theaters. It was a cool oasis in an other wise hot world. One of the more deadly inventions of the early 1900's is the tank.The tank got its name because early in WW1 while it was under development the British didn't want the Germans to find out what they were making so they shipped them as water tanks. While no one person can be credited with the invention of the tank it was the British who first used the tank in WW1. To come up with ideas for the tank, the Landship Committee was formed and their recommendations were that a vehicle firing a explosive shell should be m ade that could cross a standard German trench of 8 feet wide, and a 4 foot hill.Various designs were tried ranging from vehicles that â€Å"walked† to gigantic powered tires, but none were really successful, or strategically sound. then came the little Willie. the little Willie was the first modern version of a â€Å"tank† it was based on the tracks of farm equipment and earth moving machines. even though the little Willie was the first modern version of a tank it never saw combat as it was surpassed by an improved tank named â€Å"big Willie†. Big Willie was the first practical example of a tank as it was the first to be used on the battle field.With a top speed of 3 mph and armor up to 3 inches thick it was not the fastest nor best looking war machine out there but it did its job of providing cover for soldiers storming enemy trenches. Although Little Willie never saw combat and was redundant almost as soon as it was made, it represented a major step forward i n early 1900's technology. In contrast to the tank you have the Band Aid. Earle Dickson was employed as a bulk buyer of cotton for Johnson & Johnson when he invented the band-aid in 1921.The reason that Earle invented the band aid was that his wife kept cutting her fingers in the kitchen while preparing food. The precursor to the band aid consisted of gauze and adhesive that the user applied themselves. Earle took a piece of gauze and stuck it to the middle of a piece of tape, and then covered the adhesive and gauze with a strip of crinoline, to keep it sterile. His boss, James Johnson, saw Earle Dickson's invention and decided to manufacture band aids to the public and make Earle Dickson vice-president of Johnson & Johnson.However ingenious his invention was it was slow to start. Until Jonson and Johnson started to give them to the boy scouts for free as a P. R. stunt and by 1924 band aids were machine made and sold in individually wrapped bandages, it wasn't until 1934 that they s witched to the vinyl tape we know today. The thirty years that followed the turn of the century saw some of the most technological advancements ever seen. From the air conditioner to the band aid, without the inventers of the early 1900s the world would still be stuck in a hot bloody band aid free world.

English Descriptive Writing

The intimidating building brought terror the rough the walls. Moist beds from the children's room from the endless nights of unnerving thoughts. The house represented nothing else but desperateness and loneliness. Happiness. The children will never achieve happiness. The house was distracting to all parents. The dull, dark walls took away the light from the depressed kids. It was like the light gave hope like a endless tunnel of loneliness with a spark of light at the end of the tunnel.The obnoxious kids was never going to get love from a parent, they weren't good enough, smart enough for love. But the only way to leave the place of loneliness was to have a person you loves you for who you are, the career never gave that to them. The children were stuck in a draught of thoughts of happiness. Night time in the orphanage time is the worst. The sun went down and the shadows scrawled in through the windows like a lion crawling for its prey. The house and the bushes outside were overgrown by the leafs.The branches were wrapping round the trees like a gig hug from a loving parent which was ironic to the children inside. Night time was also the time when most dreamt about their real parents. They were regretting there life, like it was their fault they're in a cave of loneliness. As soon as the sun went up the children's hopes went up and their dreams became possible, until the career came in and blocked the sun with his body. Reality came in like a wrecking ball to hit the kids with loneliness. The house suffered in pain, the loneliness never left.No wonder the children were never happy, the career never gave them the leaning of a true home. They never received the warmth of a mother being their or their father's companionship within them. It was like a minute they had something nice in their life then reality came them a big wakeup call like when chilly wave crashes over your face and build goose bumps on your skin. The children's cry echoed through the empty house and soul. The child's face started to cry as it did not receive what it needs. The child was as lonely as a cloud going through the sky in it's own pathway never attaching itself to anything.The house was as big as the children's dreams. ND hopes that could never be reached. The loud footsteps made the children's teeth on the edge. If they didn't obey there career, there soon was a shriek coming from the children's rooms. The walls told a story of how many times the children were denied. The dull color of the walls brought, loneliness and negative thoughts like a pessimistic who will always be there. The dirty, wrecked clothes stood out in the room, the vibrant colors brought happiness which rapidly went down to loneliness like a reallocates of rejection, hate and solution.

Find a specific topic in the hospitality industry Dissertation

Find a specific topic in the hospitality industry - Dissertation Example The hotel and catering industry is an extremely competitive sector of industry. Understanding its working and the manner in which pay and career paths are defined in this competitive business environment becomes extremely useful in providing information to young people taking their first steps towards gaining the necessary skills and knowledge for a successful ad productive life ahead. Such an understanding will also enable the hotel and catering industry to take steps in reducing employee turnover loss that could be arising from low pay structures. This should not be based on hearsay, but rather on hard facts. This research is proposed to be undertaken to provide evidence on the actual pay situation in the hotel and catering industry and the satisfaction of the employees on their rewards package. Literature Review The hotel and catering industry is a very important constituent of the hospitality industry. Large luxury hotels to small cafes are the range of the hotel and catering ind ustry. The hotel and catering industry is among the largest employers in the developed world. In the United Kingdom (UK) it employs almost ten percent of the workforce, which numbers close to 2.5 million people (Yadav, 2002). Yet, the House of Commons North East Regional Committee Third Report of Session 2009 -2010: Tourism in the North East, lays claim to the hotel and catering industry being a sector where low paid work is a common occurrence. In the opinion of Wood 1992, the hotel and catering sector is one with low entry barriers and therefore a fertile ground for the entry of small time entrepreneurs. The low barriers to entry allow small and family businesses to be present in large numbers in the hotel and catering sector and their presence contributes to the low pay image in this sector (Getz, Carlesen & Morrison, 2004). Even in the large hotels competition and the drive to keep costs low reflects on the low wages paid in these hotels (Vanselow, 2008). The low wages and low e ducation and skill level requirements in the hotel and catering sector of the hospitality industry has seen the influx of a large number of immigrants as workers in this sector of industry (Williams & Hall, 2002). Guegnard and Meriot 2008 point out that one of the reasons for low per person average wage in the hotel and catering sector is that the number of managers is low with a very high percentage of blue collar workers and temporary workers. Besides low wages the hotel and catering industry also carries the stigma of high turnover, reflecting either lack of job security or worker satisfaction (Boella & Goss-Turner, 2005). Voss-Dahm 2008 opines that people can be attracted and remain committed to different sectors of industry for reasons other than pay, citing the example of sales people in the retail sales sector. From Malhotra 1997, we understand that people with problems are attracted to the hotel and catering sector for the additional advantage of stay-in facilities, for it a llows them to escape from their background or their problems at home. Job choice is influenced by two factors namely the money in it and the convenience it offers. In the hotel and catering industry it is not the money that attracts workers, but the convenience. Convenience needs to be read in several ways (Riley, 1996). The convenience elements are convenient, easy to learn, have variety, gives

Training Programme for Production Manager Assignment

Training Programme for Production Manager - Assignment Example Top-Toy AS is a multinational company headquartered in Denmark with offices and outlets in Finland. This company produces and markets toys in many countries. In order to reduce manufacturing/production costs Top-Toy AS has moved its production of some toys to China. Top-Toy AS has also begun a new policy of shipping its products directly to its distributors in various countries rather than to Denmark to eliminate some of the costs of getting the product to market. Top-Toy has positioned a manager in China to facilitate communication between its headquarters and the manufacturing plant in China. One of the tasks of the China based manager is to help establish Top-Toy's global organizational culture that has made Top-Toy so successful in other markets. The managerial position in China is a three-year posting of an employee from either the Denmark headquarters or their Finland branch. This is a highly sought after post because it increases the value of the employee to Top-Toy AS and alm ost assures that employee a promotion upon their return to Europe. Top-Toy AS's challenge has been to set up an appropriate training programme for prospective managers. The prospective manager chosen for the next three year rotation is Finland native Frans Gustafsson (hypothetical character). Frans is a thirty-five year old married man with two young sons. Frans attended university in the United Kingdom and holds an MA degree. His native language is Finnish and he also has a good command of the English language. Frans' wife Hanna and his two sons Bo and Luukas will accompany him on his rotation. He has one year before his rotation begins and must use that time wisely to prepare. Frans is in luck! Top-Toy AS has developed a training programme for its managers. Frans will complete the training programme with an alternate candidate (chosen in case Frans can't go) who is first in line for the following rotation. The men's wives have been invited to attend various portions of the training programme as well. The first issue to be addressed are the language skills the Fran's will need to communicate with his Chinese counter parts. Both couples were provided with a programme called "RosettaStone level one Chinese that claims that you can "Learn a language naturally with Dynamic Immersion" (Rosetta Stone website). Both couples were also enrolled in an intensive Chinese language and culture course at the University of Helsinki. A very important part of the course at the university is a study in the cultural differences that exist when conducting business. Frans, and the others, were encouraged to focus on the cultural differences that exist between Chinese workers and Scandinavian workers. In China, managerial relationships with workers have traditionally focused on relationships and family backgrounds. The factory took care of your family while you worked hard for the factory (Su Yi, pg 1.). In contrast, western European managerial/worker relationships are based upon qualifications, compete ncy, and performance. Fran's, and the others, have to learn how to effectively manage in the Chinese workplace. Frans, and his alternate, will communicate frequently with the current manager in China to get a feel for the managerial style that is currently being used at the factory. Both

Promoting healthy nutrition among school children in UK Essay

Promoting healthy nutrition among school children in UK - Essay Example Particularly, it will be analyzing gathered data and information with Tannahill Model that will facilitate in better understanding of different aspects of nutrition. Moreover, consideration of Tannahill Model will allow effective development of programme for health education and teachings. Furthermore, it is observed that the local educational authorities and other related institutions advocate the current nutritional health policy, and thus, it will be discussed as well, followed by discussion related to interventions that can be used by teachers to play a contributive role in promoting healthy foods to schoolchildren. Lastly, the intervention will provide an overview of evaluation methodologies used for analyzing the effectiveness proposed educational programme, and will wrap up the paper with conclusion. Now the paper will identify and discuss some of the aspects of Tannahill Model has been chosen for the development of proposed nutrition health programme for schoolchildren in the United Kingdom. Health is a system that is regarded by both the professionals, as well as nonprofessionals as a way of life rather than it being an objective of living. Throughout the history of medical research and pharmacy, several models have been launched and hypothesized; however, none has been effective enough to resolve the plethora of public health deficit that plagues the entire globe. With the rapid globalization, it seems that even health issues have run to an outreached level, which needs to be resolved with proper planning, policies, and right form of protection provided to the society as a whole. â€Å"Health promotion, then, is the active process of disease prevention encompassing educational components, including individual and group change and social influence techniques which, together with environmental, legislative and organizational interventions, make up a range of strategies for

Design history Essay Example | Topics and Well Written Essays - 500 words

Design history - Essay Example ifferent time periods and thus have different styles,, Lucian Bernhard’s Priester Matches (1905), and Stefan Sagmeister, AIGA poster (1999 they are all innovations that derive from the social problems at that time and given place. It is significant that these innovations were made to solve social problems. William Morris’s design of a chapter cover for Ruskin, The Nature of Gothic, clearly shows that it evolved from a social concern in which the Industrial Revolution caused a deficiency of aesthetic advertising and artwork. People did not want to spend their time on flyers that ultimately disappear and be surpassed with new artwork within a few days. William Morris realized that this problem came out of the Industrial Revolution and he attempted to fill society with beauty through decorative and ornamental artwork. He believed that beautiful designs would benefit the people and help to build morality in the people as well. Thus, his beliefs are clearly demonstrated in his design. As a leader of the art and crafts movement, he used very ornamental decorations on the borders of the cover and he showed how he considered aesthetics as an important part of his design. He borrowed medieval imagery and adapted it to a style more suited to the 19th century. His designs helped propel th e art and crafts movement and replaced amateur designs, which lacked aesthetics. Similarly, Bernhard’s innovation was also one of the most successful designs that met the social needs of the day. After the Industrial Revolution, many new businesses were established. At that time, every company’s advertisements followed Art Nouveau. The typical advertisement of the day was busy and crowded looking. Within this vast amount of companies, it was really hard to identify one from another. In contrast to the ornamental and decorative style that dominated advertising and artwork at that time, Bayer’s design was definitely an innovative style. Unlike other advertisements, he did not use

Chinas Economy Assignment Example | Topics and Well Written Essays - 750 words

Chinas Economy - Assignment Example The military power, technological advancement and the currency of China have drastically improved over the past years, which is a sign of economic dominance. These aspects of the economy combined with the fast growth are likely to surpass those of the United States. According to IMF, THE CHINESE ECONOMY GREW BY AN AVERAGE OF 9.6 PERCENT PER YEAR BETWEEN 1990 AND 2010 (Babones, 2011). This projection indicates that China has one of the fastest growing economies in the world. The country survived the global financial crisis of 2008 and managed to expand its economy, which indicates real economic supremacy. CHINAS ECONOMY HAS BEEN TRANSFORMED BY SUCCESSIVE WAVES OF ECONOMIC REFORM (Naughton, 2007). Market transition has led to a market economy dominated by exports and multi-national firms. The country has managed to dismantle the command economy and decentralize the effects of communism in order to create a market economy and empower the rural people. This has created a fair playing gro und for market participants, which has extended to the international market. This has led to the sudden rise of China as a global trading center and several investors have invested in Chinese firms. ECONOMIC REFORMS HAVE FAVORED FOREIGN INVESTMENT, WHICH HAS ALLOWED FOREIGN FIRMS CLAIM A SHARE OF INDUSTRIAL EXPORTS (Gilboy, 2004). The government has also been instrumental in supporting the private sector by giving private companies access to capital, technology, and markets. This has improved the output from these firms and their contribution to the country’s GDP, which has strengthened Chinas’ economy. OVER THE PAST 30 YEARS, CHINA HAS EXPERIENCED THE GREATEST AND MOST RAPID REDUCTION OF EXTREME POVERTY (Katz, 2008).The country has improved the living condition of the poorest people in the country and reduced poverty levels. The continuing growth rate has improved the living conditions of the Chinese people, which have supported economic supremacy of the country. THE RAPID ECONOMIC GROWTH HAS IMPROVED THE ECONOMIC WELL-BEING OF THE CHINESE PEOPLE AND ALTERED THE STRUCTURE OF THE SOCIETY (Pei, 2006). The economy is less state-centered as was the tradition, which has enabled the country consume much of its products by improving the living condition of the population. Chinese citizens have improved their access to information through telephones and televisions. These have improved the communication and transport industries in the country, which are some of the rapidly growing industries in the country. The contribution of these industries in the country’s GDP has helped improve the economy and expansion into the global economy. China has experienced high levels of savings and investment, which has contributed to the rapid economic growth. INVESTMENT RATES IN CHINA ARE MUCH HIGHER THAN IN OTHER COUNTRIES WITH COMPARABLE LEVELS OF PER CAPITA INCOME (CSIS, 2006). This has enabled the growth of per capita stock that has facilitated the transitio n from agricultural labor to the modern sector. The investment into the modern sector has introduced a center for a new labor force that has improved the output from the sector. FACTORS OF PRODUCTION SUCH AS LABOR AND CAPITAL HAVE CONTRIBUTED TO CHINA’S ECONOMIC GROWTH (Angang, 2011). The savings from the labor force have improved the purchasing power of the population. Direct investments in the country have improved capital formation that has helped the citizens improve their savings and their purchasing power. This has helped improve the country’s GDP and its competing abilities with superpowers such as USA. ASIA’S PRODUCTION ASSEMBLY HAS ATTRACTED SEVERAL INVESTORS FROM

Response paper Essay Example | Topics and Well Written Essays - 750 words

Response paper - Essay Example The video shows the grave situation which has resulted in the forest of Boulder, Colorado. This forest is a vast land accommodating thousands of pine trees. It does not only provide for scenic beauty; rather it is home to several people who live among the beautiful mountains, forests and lakes of Colorado. Due to the rising global temperatures, the trees of the forest are encountering parasitic invasion by the ‘pine beetles’. These insects only infest at warmer temperatures and due to the climate changes they have gained access to the pine trees of Colorado. Because of this massive invasion, the pine trees of Colorado are dying and their number has decreased significantly over the past years. The destruction of trees gives way to an unhealthy eco-system, as the animal species of the forest will encounter a disturbed cycle of life. Moreover, the increased number of dead tree logs also gives way to wild forest fires. The Fourmile forest fire of Colorado in 2010 was a devas tating outcome of global warming which led to many people losing their homes in Colorado. This is an upsetting outcome of global warming that has affected the human population. If the balance of environment is not restored, the outcomes can be more devastating and life-altering. In view of the government’s basic duty to protect the natural elements of its domain such as air and water, the residents of Boulder, Colorado are standing up for their rights and demanding the protection of their natural resources. It is stated by scientists that if we decrease the total carbon dioxide production by 6 percent per year and increase the number of forests, then the balance of environment can be restored. People who appreciate and enjoy the natural resources around them are raising their voices as environmental activists to spread awareness and acknowledgement among the masses. Video 2 There are various ominous signs that point towards the changing climate of Earth. These changes and the ir effects are going to indirectly affect the human population, by shortcomings in food and water resources. The melting of glaciers is one of those worrisome indicators that signify the pacing global warming and this video explains the negativities associated with this melting of glaciers. The Himalayas is home to many gigantic and historic glaciers. Many years back, these glaciers were a source of awe and wonderment for the discoverers and mountain explorers. The thought of disappearance of these colossally huge glaciers never even struck their minds. However, some of these glaciers are melting, which apart from being a problematic sign of global warming, is going to affect millions of people living in the Himalayas. Industrialization of the world is leading to the glacial melt, which is exhibited by the difference in their sizes when compared to the glaciers’ older pictures and descriptions. A very relevant example would be of the Kyetrak Glacier, Mountain Cho Oyu. The gla cier has been affected by the global warming and has shown signs of melting when compared to the 1921 and the 2009 descriptions of the glacier. The Rongbuk Glacier, located in the Himalayas, is another victim of global warming and mountain explorers describe drastic changes in the glacier over the past 30 years. Explorers describe the glacial melt to affect the inhabitants of Himalayas. They will be facing problems in their

Environmental and Ecological Issues in Robyn Eckersley’s Perspective Essay Example for Free

Environmental and Ecological Issues in Robyn Eckersley’s Perspective Essay Robyn Eckersley, a renowned environmentalist believes that ecocentric theorists do not claim that anthropocentrism is the sole or original cause of the ecological crisis. She also reflects that environmental crisis is the outcome of humanity’s joyful and spontaneous instincts due to repressive social and psychic division of labor. As a matter of fact, she contends to the idea that it is the rise of material paradigms that people are in need of reconciliation with nature. She notes that utilitarianism in its very state undermined the essence of the environment which is why the veil of knowledge worn by the society is covering them thus colonizing the life-world. Eckersley examined the deontology of ethics inclined with the aim of making the recent topographical shifts within the field that are less â€Å"unknown to us (Eckersley). † To note, she states â€Å"utilitarian and eudaimonistic or therefore theological moral philosophy derives difference between good and evil from the effects which actions and attributes by nature have for the form of life of the actor and his environment (Louden). † In further illustration, she meant that the good deeds can conveyed as those that are considerably favorable effects for human welfare, while those that bring about the opposite are otherwise. Hence, this connotation also falls on the deliberative state of intuitive and formalistic ethics. Although Eckersley favors a rights discourse as a way to include the natural world in a liberal system, she admits that, â€Å"†¦the rights discourse becomes considerably strained (in all its dimensions) when we come to consider ecological entities (Eckersley). † She defines multiple human activities to be the cumulative result of the ecosystem’s components and that today’s approach towards this epidemic will not ensure sustainability. In essence, she is not against any form human-driven doings; however, she is not favor of the manner that it handles the resources that in the light provides for the very existence of human beings. The harvesting of the planet’s resources is seen to be detrimental to the future of the ecosystem and if such is prolonged, survival will be provided only for the few. Socialist critique of liberalism in comparison with the ecological state will differ in terms of morality and the deontology of ethics. It is apparent that not all deeds are the same when it comes to utilitarianism, sometimes, the ecosystem, being unable to air its share of sentiments, id reprimanded and oftentimes taken for granted (Rice). Humans are subject to care for those of its kind and the environment is not considered to be a part of it. In consequence, such is an irony, given that the human beings live and survive with the help of a healthy ecosystem—without the ecosystem, the members of the society will not be able to live. Policies, regulations and management may have changed over time. If compared to the previous century where not all are aware of the threat and the challenge of sustainability, the contemporary era now gives regard to narrowing the problems and eradicate or at least moderate in the utilization of resources provided that there is a massive chance that it may no longer be available in the next 100 years. The signs of climate change is a proof that laws would need to focus on combining good deeds not only for the people that it serves but also to detain the precautionary measures that may possibly harm the humanity.Accordingly guidance is considered necessary on the position of ecosystem mechanism that may be at risk (Rice). Works Cited Eckersley, Robyn. Liberal Democracy and the Rights of Nature: The Struggle for Inclusion. Environmental Politics 4. 4 (1995). Louden, Robert B. Toward a Genealogy of Deontology. Journal of the History of Philosophy 34. 4 (1996). Rice, Jake. Can We Manage Ecosystems in a Sustainable Way? A symposium on Sustainable Management of Marine Living Resources 60. 1-2 (2008). doi:10. 1016/j. seares. 2008. 02. 002.

Introduction to Synchronization

Introduction to Synchronization Synchronization is a mechanism which helps to use shared memory resources in an operating system. In the current world, most of the computers are multi-tasking computers. So these computers can do more than one process at the same time. And the networking technology is has become one of the most modern and developed technologies in the current worlds. So both these computer and network technologies work together in order to achieve common goals. While working together these technologies have to share resources such as memory at the same time. While sharing memory, there can be many problems. To avoid these problems synchronization mechanisms were implemented. Concurrency As it is mentioned above, operating systems share memory in order to achieve common goals. The data can be shared among two processes in one operating system or two operating systems over a network. However there are sometimes that the shared data can be accessed by only one process at a time. As a real life example, shared bathroom can be taken. A shared bathroom can be used by many people but it can be used by only one person at the time. If someone is using the bathroom, others have to wait until that person to come out. Then the one of the waited people can use the bathroom. Another real life example for this is shared streets or junctions. In shared streets, people can use only one direction at one time. If the shared street is used by any direction, people from other direction have to wait till others to stop using the shared street. Otherwise there can be clashes and a lot of problems. Like these, when the operating systems use shared memory, sometimes only one process can acc ess the data at one time. So this is called concurrency. There must be some mechanisms to avoid this concurrency. In the above given two real life examples, the shared bathroom can use a lock in its door to make sure that only one person is using the bathroom at one time. In the shared streets, traffic lights can be used to make sure that only one direction is using the street and avoid the clashes. Like this, locking and synchronizations are the mechanisms that can be used to avoid concurrency in operating systems. Properties of systems with concurrency There are some properties of the systems with concurrency. Those properties are, multiple actors, shared resources and rules for accessing the resources. In the above given two real life examples, the multiple actors are people and vehicles while the shared resources become bathroom and street. The rules for accessing these shared resources are one person at one time for the bathroom and one direction for one time for the shared streets. When talking about these three properties in relating to the operating systems, it can be explained like this. Here, the multiple actors are processes within the operating system or threads in processes. Shared memory, global variables and shared devices can be taken as the examples for the shared resources property while locking and semaphores techniques become the rules for accessing the shared resources in operating systems. These are the three properties of the systems with concurrency and it helps to understand what the concurrency is. Situations with no risk of concurrency In the current computer technology, there are some situations that there is no risk of concurrency but the shared resources are accessed by more than one processes or threads at the same time. Those situations are as follows, No shared memory or communication :- Here, the processes or threads do not have shared memory or communication. So those processes or threads work only with its private memory. Shared memory with read-only access :- Here, the shared memory can be accessed by one or more processes or threads at the same time. But in this situation, the shared memory is only available for processes or threads to read-only. So the shared memory cannot be modified in this situation. Copy-on-Write (COW) :- Here, the shared memory is accessed by one or more processes or threads at the same time and each process or thread has a separate copy of the shared memory. So each process is accessing its own copy of the shared memory and there is no risk of concurrency. Situation with risk of concurrency As well as the situations with no risk of concurrency, there are some situations with risk of concurrency in the current operating systems. Those situations can be explained as follows, Using of shared memory without any synchronization :- Here, if the shared memory is accessed by more than one processes or threads at the same time without and synchronization (without having any separate copy for each process or threads), there is a risk of concurrency. Any modification to the shared memory :- If the shared memory is accessed by more than one processes or threads, and at least one of the processes or threads makes any changes to the shared memory, then there is a risk of concurrency. These are the situations with risk of concurrency. If one of these happens, then there is a risk of concurrency in the system. If a concurrency is happened, then there may be a lot of problems in the system. And the risk of happening the concurrency is known as race condition. Race condition Under this topic, the race conditions is discussed by using an example. Here, an example of a bank account is taken to discuss the race condition. In this example, there are two peoples and a bank account. Execution of the code of this example as follows, account.balance =  £200; int withdraw (account, amount =  £50){ balance = account.balance; balance -= amount; int deposit (account, amount= £100){ balance = account.balance; balance += amount; account.balance = balance; return balance; } account.balance = balance; return balance; } For this example, the two persons are named as person1 and person2. The code executed by the person1 is coloured with blue colour while the code executed by the person2 is coloured with red colour. This is a sketch of the programme but not coded with any programming language. In the very first line, the balance of the account is set to  £200. The rest of the code is explained as follows, Line 1 :- person1 starts executing the code and calls the withdraw() by giving the account and  £50 of amount as the parameters. Line 2 :- person1 reads the balance from the account class and assigns the value of balance variable in account class to his balance variable in his withdraw(). Line 3 :- person1 modifies the value of the balance variable in his withdraw() by subtracting the value of amount. So the value of the balance variable in his withdraw() becomes  £150. Line 4 :- In this line, the person2 starts executing the code by calling his deposit() by parsing account and  £100 of amount as the parameters. Line 5 :- Here, person2 reads the value of the balance variable in account class and assigns it to the balance variable in his deposit(). Here, still the value of balance variable in account class is  £200 as the person1 has not updated the balance in account class. Line 6 :- Person2 modifies the value of the balance variable by adding the value of amount variable to it. So the value of balance variable in deposit() becomes  £300. Line 7 :- person1 updates the value of the balance variable in the account class as  £150. Line 8 :- person 1 returns the value of the balance variable in withdraw() Line 9 :- person2 updates the value of the balance variable in the account class as  £300 Line 10 :- person2 returns the value of the balance variable in his deposit() After executing this code 2 peoples complete their transactions by leaving the final value of the balance variable in account class as  £300 while the real value of the balance variable in account class has to be  £250. So there is clear error in the final output of the process and this is called as the race condition. Manage concurrency Manage Synchronization means, use synchronization mechanism programs to write rues for control concurrency situations. One of these rules are as follows: Atomicity Atomicity allows one threat to access data to manipulate at a single situation. In another way, will allows no other threats to change data while one is running. This will either will lock the threat is in progress of manipulating the record or let other records to be waiting while one record access record. The other rule is conditional synchronization In this explain threats will be in a particular order to access the record. When threats arrives to access record rule will check the order and add to the queue and let wait until the turn of the threat to access the records. All above access methods will be easy to implement when can identify which is the critical part of the process should allow to access at a time. i.e. When Person A accessing account balance person B not allows to access balance at the same time. If extract further as bellow. 1.int withdraw (account, amount) { 2.int balance = account.balance; 3.balance -= amount; 4.account.balance = balance; 5.return balance; 6.} Line 1: will initialize threat and pass external parameter values into the threat withdraw as account and amount in this situation. Line 2: will declare balance variable locally to retrieve stored account balance from the database for threat to process and pass account balance in the account table account.balance. Line 3: will manipulate balance variable value (in this situation, we will deduct since it is withdrawal) from the amount has been pass form external parameter. -= notation for the deduction. Line 4: will update database with new balance value after withdrawal amount deducted from original balance. balance which is a local variable holding the new balance transfer to the account.balance and update record with new balance value. Line 5: will return new balance value to the screen if necessary Line 6: will terminate the process of withdraw by } There will be no concurrent when two threat access lines 1, 5 and 6. But if any threat try to access lines 2, 3 and 4 will be given incorrect information for one of the threats. Therefore from line 2 to 4 is very critical to let access only for one threat at any given time of the process as explain bellow. int withdraw (account, amount) { int balance = account.balance; balance -= amount;Critical Section account.balance = balance; return balance; } This identified sections will call as a critical section in another word, no other threats will allows to access while one threat is using at any given time because data will be manipulate when access line 2, 3 and 4. Critical section Critical section is set of codes access shared resources and there are several ways of developing critical section such as: Locks, Semaphores, Monitors and Messages. In this report will describe locks and semaphores how behave and how priority will work. Locks in synchronization First method of synchronization is locks. Locking is a very primitive system been used. Lock will lock the threat in the critical section while it is processing the record. Mainly lock has two stats Held and Not Held. At the Held state, one threat is in the critical section and at the Not Held state no threats in the critical section and can prioritised threats to have access. Also locks having two operations Acquire and Release. Which threat will request the lock to be held to access critical section and once threat previously use critical section release the lock acquired thread will get a chance and change the state as held. When threat finish it process in the critical section must release the lock to use by the other threats which are waiting in the queue. Figure The above figure has explain how acquire and release will behave at the critical section access, i.e. threats A, B and C request access permission to critical section at the same time by Acquire operation and threat A will grant access with the lock Held state enable. Once threat complete the process will call release operation to change the lock state to Not Held and lock will change state to Held with threat B and so on will be proceed to complete different threat request at the critical section. By using previous example take a look where to use Acquire and Release operations threat. int withdraw (account, amount) { acquire (lock); // Request lock to held to access critical section int balance = account.balance; balance -= amount;Critical Section account.balance = balance; release (lock); // Release lock after complete critical section access return balance; } With further explanation considering previous withdraw and deposit situation Figure 2. Overcome concurrency situation had occurred while both people access same account balance to manipulate the amount. Figure When implement locks use Boolean variable to check is lock held TRUE or FALSE? Acquire operation will keep other threats in the waiting state while lock held values is TRUE. If lock held VALUE is false, will change to TRUE with requested threat. When the threat completed process in critical section will call release operation and change lock held value as FALSE to make lock available for other threats will show in below construct. First create a global Boolean type variable held values TRUE or FALSE to check is lock holding by a threat or not and by default lock will not hold by any threat and value will be FALSE. structure lock { bool held; // initial value FALSE } Construct acquire by requesting a lock to be held and if lock à ¯Ã†â€™Ã‚  held value TRUE request threat will wait in the queue for lock to be released. If lock à ¯Ã†â€™Ã‚  held is FALSE and by acquire change value of lock à ¯Ã†â€™Ã‚  held to TRUE and take the control of the critical section access. void acquire (lock) { while (lock à ¯Ã†â€™Ã‚   held) ; // Hold other threats in the wait queue lock à ¯Ã†â€™Ã‚   held = TRUE; // Once get the lock, change lock value to TRUE } Construct release operation simply will change the start of lock à ¯Ã†â€™Ã‚  held value to false and allows other threat to access critical section for the next process. void release (lock) { lock à ¯Ã†â€™Ã‚   held = FALSE; // When complete process in the critical section, change lock value to FALSE } Semaphores in synchronization This is the second method of synchronization. This method is a very basic and powerful mechanism but difficult Implementation method and use blocking threats to access critical section instead of locking threats while using critical section. Semaphores has two operations and they are: wait (semaphore) or P() First of all as soon as threat request access permission P() or wait (semaphore) will decrease the counter values which is 1 by default. Then check is counter value become 0 or signal (semaphore) or V() Once a threat complete process in the critical section will call V() or signal (semaphore) and will increase counter value by 1. i.e. if a P() had decrease counter value 0 while it was in critical section and no other threats can access, but second threat has decreased to -1 while requesting permission to access critical section and waited. Also since second threat is still waiting to get permission it goes to sleep mode, hence V() will wake up threat in a sleep to start it process in critical section explains in Figure à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. Figure à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.. Figure Readers/Writers synchronization This is another powerful method of synchronization. In this method, the data is accessed by two different ways. Those two ways are, readers and writers. Here, the readers only read files and writers update file contents or data. There are four (4) rules while using the readers/writers synchronization methods and they are as follows, If any reader(s) read the file and no writer is pending, the next reader can read the file without waiting. Writers have to wait till the reader(s) finish reading file. After readers finish reading, writer(s) will can start writing. If any writer is writing to the file, acquiring readers have to wait till writer finish writing. If one writer is writing to the file and if both readers and writers are waiting, at this situation priority will be given for writers who are waiting. Therefore readers will wait till all writers to compete writing and then readers will start reading. So readers can read most updated file. Future trends of synchronization In the current situation, locks and semaphores are widely used in order to prevent the concurrency. So it is very important to deal with the codes in critical section as otherwise there will be a lot of problems with the reliability of information systems. However using of systems with the locks are not time efficiency. So in the current situation of the computer technology, there is a trend of implementing lock free systems. According to the previous example of shared street, the shared street has to be controlled by using traffic lights. So on the shared streets, only one direction is allowed at one time. So the other directions are blocked at the same time. But there is a technique that does not need of using any traffic lights on the shared street. Here, fly over technique can be used and avoid blocking the directions. So all the directions on the shared street can be used at once without having any problem. But here, this technique may has some more waiting time as the length of the street can be increased while using fly over technique. Like in this example, lock free systems can be implemented in information systems. Semaphore method can be taken as an example for lock free system. But here as well, the processes have to wait sometimes as in the give example of fly over technique on shared streets. The weakness of this method is that lock free and wait free features cannot be implemented in the same information system. So only one of these methods (lock free or wait free) can be implemented in information system.

Synthesis of Strontitum Hexaferrites Nanoparticals

Synthesis of Strontitum Hexaferrites Nanoparticals ABSTRACT The SrFe12O19 is hard magnetic material (hexa-ferrite) with magneto plum bite structure . It has attract much attention in past few decades due to their Scientific Technological applications in the frequency rages of microwave to radio frequency. Due to used for high frequency application in multilayer chip inductor. This is due to high magneto crystalline anisotropy , High curie temperature, High Electrical resistivity High Di-electric constant as well as high saturation ( Magnetization Coericivity). The Dielectric Magnetic properties of hexa-ferrites materials in the nano regime are significantly different from their bulk materials. The work in this thesis consists of three aspects, Synthesis of strontitum hexaferrites nanoparticals by Non-convetional Citrate precursor method (chemical method). Effect of Annealing Temperature on Magnetic properties of strontitum hexaferrites. Effect of Structural , Electrical optical properties have been studied. These samples were characterized through X-Ray diffraction for its size properties. The particle size was determined in scherrer’s formula. The samples were studied for their full report showing their magnetic properties based on the hysteresis loop formation for the samples prepared at the two temperatures through VSM . Electrical optical properties have been examined through Impedance analyzer Photo Luminance. 2. Literature Review Since the Discovery of the M type hexagonal ferrites in 1950’s . It has being of great  Interest due to its application as permanent magnetic materials perpendicular  Recording media. Due to its low cost, the main reason for its great success at moderate  magnetic properties. Various works has been carried to develop hexa-ferrite by various  methods and their properties has been investigated. On other hand extensive work has  been done to understand the effect of various dopant. It is found the doping of metal ion, rare earth ion substantially effects their properties. Work carried out in past few years on different processing methods and different dopants are given below: Structural and magnetic properties of La3+substituted strontium hexaferrite nanoparticles prepared by citrate precursor method [16] Ankush Thakur,R.R. Singh, P.B. Barman , Lanthanum (La3+) doped The effects of La3+on magnetic properties have been analyzed using vibrating sample magnetometer and discussed. The results show that the coercivity has been improved by substitution of La3+on iron sites; coercivity value found to be increased with increase in La3+ . La 3+doped strontium ferrite, prepared by citrate precursor technique, have been analyzed by means of X-ray diffraction (XRD), FESEM,FTIR and inductance capacitance resistance meter bridge. The XRD analysis shows that crystalline ferrite phase with hexagonal structure. when the precursor calcined at 900 °C for 5h. The crystallite size is found in the range of 31–38nm and the elemental composition has been examined by energy dispersive X-ray. The dc electrical resistivity has been found to be increased with increasing La3+content. Synthesis of strontium hexaferrite nanoparticles prepared using co-precipitation method and microemulsion processing [17] ADrmota,A.Ã…Â ½nidarÃ… ¡iÄ  andAKoÃ… ¡ak : , Strontium hexaferrite (SrFe12O19) nanoparticles have been prepared with co-precipitation in aqueous solutions and precipitation in microemulsion system water/SDS/n-butanol/cyclohexane, calcined in a wide temperature range, from 350  °C to 1000  °C in a static air atmosphere. The influence of the Sr2+/Fe3+molar ratio and the calcination temperature to the chemistry of the product formation, its crystallite size, morphology and magnetic properties were investigated. It was found that the formation of single phase SrFe12O19with relatively high specific magnetization (54 Am2/kg) was achieved at the Sr2+/Fe3+molar ration of 6.4 and calcination at 800  °C for 3h with heating/cooling rate 5  °C/min.The specific magnetization (DSM-10, magneto-susceptometer) of the samples was measured. Preparation and investigation of magnetic properties of MnNiTi-substituted strontium hexaferrite nanoparticles[18] M. Mozaffari, A. Arab,M.H. Yousefi, J. Amighian M-type strontium hexaferrite powders with substitution of Mn2+, Ni2+and Ti4+ions for Fe3+ions has been prepared via the conventional ceramic method. In order to get nanoparticles, the obtained powders were milled in a high energy SPEX mill for 1h. XRD investigations of the unmilled and milled powders show that the prepared samples are all single phase hexaferrite. Lattice parameters and mean crystallite sizes of the powders were determined from the XRD data and Scherrer’s formula. TEM was used to analyze their structures, magnetizations and coercivities of the samples in a magnetic field of 15kOe have been determined from the hysteresis loops. It was found that magnetizations of the milled samples were smaller than the magnetization of the unmilled samples. Synthesis, magnetic and dielectric properties of Er–Ni doped Sr-hexaferrite nanomaterials for applications in High density recording media and microwave devices [19] Muhammad Naeem Ashiqa,,Muhammad Javed Iqbalb, Muhammad Najam-ul-Haqa,Pablo Hernandez Gomezc,Ashfaq Mahmood Qureshia A sol–gel combustion method has been successfully employed for the synthesis of Sr-hexaferrite nanomaterials doped with Er3+and Ni2+at strontium and iron sites, respectively. A Simple and economic method has been used for synthesis of materials. The main aim for substitution of Er–Ni in Sr-hexaferrite is to improve magnetic properties and to reduce the crystallite size. We are able to improve the saturation magnetization and remanence with the doping of Er–Ni. Crystallite size is in the range 16–14nm, which is much smaller than that reported earlier. Dielectric constant is reduced which makes the material suitable for microwave devices. Crystallization kinetics of strontium hexaferrite: Correlation to structural, morphological, dielectric and magnetic properties [20] Ankush Thakur,R. R. Singh,P. B. Barman Citrate precursor technique has been used to synthesize strontium hexaferrite and reported here. The crystallization process for ferrite phase formation has been investigated by TG/DTG/DTA for three different heating rates in air atmosphere. The thermal process mainly consists of three essential steps; first removal of water residues; second decomposition of organic compound and the third step is crystallization of SrF12O19. The activation energy of reaction is, 157 KJ/mole, evaluated using non-isothermal kinetic model. The precursor and crystallized SrF12O19samples have been characterized for structural, chemical, morphological, dielectric and magnetic properties Using XRD, FTIR, FESEM,LCR meter bridge and VSM respectively. Influence of annealing temperature and doping rate on the magnetic properties of Zr–Mn substituted Sr-hexaferrite nanoparticles [21] Muhammad Javed Iqbala,Muhammad Naeem Ashiqb,Pablo Hernà ¡ndez-Gà ³mezc,Josà © Marà ­a Muà ±oz Muà ±ozc,Carlos Torres Cabrerac A series of M-type strontium hexaferrite samples having nominal composition SrZrxMnxFe12−2xO19(wherex=0.0–0.8) has been synthesized by the co-precipitation method. All the samples synthesized were of single magnetoplumbite phase. The particle size was found to be in the 40–65nm range for the samples annealed at 1193K while the samples annealed at 1443K were in the 100–200nm range. The saturation magnetization increase with temperature and reached maxima for the samples annealed at 1393K and then start to decrease while the coercivity decreases regularly with temperature. Structural evolution and magnetic properties of SrFe12O19nanofibers by electrospinning [22] Xiangqian Shen,Mingquan Liu,Fuzhan Song,Xianfeng Meng The SrFe12O19/poly (vinyl pyrrolidone) (PVP) composite fiber precursors were prepared by the sol-gel assisted electrospinning with ferric nitrate, strontium nitrate and PVP as starting reagents. M-type strontium ferrite (SrFe12O19) nanofibers were derived from calcination of these precursors at 750–1,000 °C.The composite precursors and strontium ferrite nanofibers were characterized by FTIR , XRD, SEM VSM .After calcined at 750 °C for 2h the single M-type strontium ferrite phase is formed by reactions of iron oxide and strontium oxide produced during the precursor decomposition process. The nano fiber morphology, diameter, crystallite size and grain morphology are mainly influenced by the calcination temperature and holding time. The SrFe12O19nano fibers characterized with diameters of around 100nm and a necklace-like structure obtained at 900 °C for 2h, which is fabricated by nano sized particles about 60nm with the plate-like morphology elongated in the preferred dire ction perpendicular to thec-axis, show the optimized magnetic property with saturation magnetization 59Am2kg−1and coercivity 521kAm−1. It is found that the single domain critical size for these M-type strontium ferrite nanofibers is around 60nm. Structural, dielectric and magnetic properties of Cr–Zn doped strontium hexa-ferrites for high frequency applications [23] G. Asghar, M. Anis-ur-Rehman M-type strontium hexa-ferrite nano particles with composition SrFe12−2xCrxZnxO19(X=0.0, 0.2, 0.4, 0.6, 0.8) were prepared by co-precipitation method and are reported for the first time. X-ray diffraction analysis confirmed the successful substitution of Cr and Zn ions in the strontium hexa-ferrite lattice. Structural morphology studied by SEM revealed that Cr–Zn doping inhabits the grain growth. Dielectric measurements were taken as a function of frequency in the range (10kHz to 3MHz). Both dielectric constants and dielectric losses were found to be decreasing with the increase in Cr–Zn concentration. As Cr–Zn doping favored the decrease in dielectric losses to a large extent (0.32–0.02) so the strontium hexa-ferrite with these dopants is very useful for high frequency applications. Influence of the iron content on the formation process of substituted Co–Nd strontium hexaferrite prepared by the citrate precursor method [24] S.E. Jacobo ,C. Herme , P.G. Bercoff Strontium hexa ferrite samples of different composition were prepared by the self-combustion method and heat-treated in air at 1100 °C for 2h: SrFe12O19(S0), Sr0.7Nd0.3Fe11.7Co0.3O19(SS), Sr0.7Nd0.3Fe10.7Co0.3O19(SM) and Sr0.7Nd0.3Fe8.4Co0.3O19(SL). The phase identification of the powders was performed using XRD. Only sample SL (with the lowest iron concentration) shows well-defined peaks of the hexaferrite phase with no secondary phases. Nd–Co substitution modifies saturation magnetization (MS) and coercivity (Hc) but only samples with low Fe3+content (SL and SM) show the best magnetic properties, indicating that the best results for applications of this ferrite will be obtained with an iron deficiency in the stoichiometric formulation. Sol–gel hydrothermal synthesis of strontium hexaferrite nanoparticles and the relation between their crystal structure and high coercivity properties [25] Thi Minh Hue Dang1, Viet Dung Trinh1, Doan Huan Bui1, Manh Huong Phan2and Dang Chinh Huynh1 Hard magnetic strontium hexaferrite SrFe12O19nanoparticles were synthesized by the sol–gel hydrothermal method. The factors affecting the synthesized process, such as the mole proportion of the reactants, pH, temperature, the hydrothermal conditions and the calcination process, have been investigated. The crystal structures of these materials were refined by Rietveld method. The obtained materials have single crystal phase, equal nano-size, plate shape and high anisotropy. The high magnetic coercivity of 6.3à ¢Ã¢â€š ¬Ã¢â‚¬ °kOe with the magnetization at 11.1à ¢Ã¢â€š ¬Ã¢â‚¬ °kOe of 66à ¢Ã¢â€š ¬Ã¢â‚¬ °emuà ¢Ã¢â€š ¬Ã¢â‚¬ °g−1at room temperature was observed for the strontium hexaferrite nanoparticles. For other nanoparticles (SrLnxFe12-xO19and SrFe12O19/CoFe2O4) synthesized on the basis of SrFe12O19the complex completion of the crystal structure distortion and the interaction between magnetic phases were observed. Low-Temperature Hydrothermal Synthesis of Ultrafine Strontium Hexaferrite Nanoparticles [26] Darinka Primc1,Miha Drofenik1,2and Darko Makovec1 Ultrafine strontium hexaferrite (SrFe12O19) nanoparticles have been synthesized by the hydrothermal treatment of an appropriate suspension of Sr and Fe hydroxides in the presence of a large excess of OH–at temperatures between 130 and 170  °C. To avoid the parallel formation of any undesired hematite (ÃŽ ±-Fe2O3) during the synthesis, a large excess of Sr in the starting composition (Fe/Sr = 3) had to be used. When the treatment was performed below 170  °C, ultrafine nanoparticles were formed. The TEM images show they have a disc-like shape, approximately 12 nm wide, but only around 4 nm thick. The EDS analysis showed their composition corresponded to SrFe12O19. When the temperature of the hydrothermal treatment exceeded 170  °C, larger hexagonal platelet crystals appeared as a consequence of Ostwald ripening. The evolution of the size and morphology of the nanoparticles with the temperature of the hydrothermal treatment was also monitored by XRD and measurement of the m agnetic properties. A Simple Method for Synthesis of Strontium Ferrite Nanoparticles and their Polymeric Nanocomposites [27] G. Nabiyounia*, A. Yousofnejada, M. Seraja, S. Farshad Akhtarianfarb ,D. Ghanbarib Hard magnetic SrFe12O19(SrM) nanoparticles were synthesized by a facile sonochemical reaction. The magnetic nanoparticles were then added to acrylonitrile-butadiene-styrene, polystyrene, polycarbonate,and poly sulfone to make magnetic nanocomposites. The magnetic properties of the samples were also investigated using an alternating gradient force magnetometer. The strontium ferrite nanoparticles exhibited ferrimagnetic behaviour at room temperature, with a saturation magnetization of 39 emu/g and a coercivity of 5070 Oe.The distribution of the SrFe12O19nanoparticles into the polymeric matrixes increases the coercivity. Magnetic, physical and electrical properties of Zr–Ni-substituted co-precipitated strontium hexaferrite nanoparticles [28] Muhammad Javed Iqbala ,Muhammad Naeem Ashiqa,Pablo Hernandez-Gomezb, Jose Maria Munozb A series of Zr–Ni-substituted strontium hexaferrite materials, SrZrxNixFe12−2xO19(x=0.0–0.8), was synthesized by the co-precipitation method and the crystallite size determined to be in the range of 30–47nm. The saturation magnetization increased from 72 to 98kAm−1while coercivity decreased from 1710 to 428Oe with Zr–Ni substitution. This improvement in both these properties makes these materials suitable for applications in recording media. The increase in resistivity suggests that the synthesized materials can be useful for application in microwave devices. Structural and electromagnetic characteristics of substituted strontium hexaferrite nanoparticles [29] Ali Ghasemia,,Akimitsu Morisakob Substituted strontium ferrite SrFe9(Mn0.5Co0.5Zr)3/2O19has been prepared from sol–gel method. X-ray diffraction (XRD), transmission electron microscope (TEM) and vector network analyzer, were used to analyze the structure and dynamic magnetic properties. Powders of sample show a hexagonal fine platelet structure and narrow particle size distribution. Based on microwave measurement on reflectivity, SrFe9(Mn0.5Co0.5Zr)3/2O19may be a good candidate for electromagnetic compatibility and other practical applications at high frequency.

Sex and Relationship Education (SRE) Essays -- human sexuality and sex

Sex and relationship education (SRE) is supporting children through their moral, physical and psychological aspects of growing up to be an adult, and making sure they have knowledge on relationships, sex, human sexuality and sexual health (Sex Education Forum, 2010). There are three main elements in SRE, the first element is attitudes and values, which is about developing positive values and be able to consider moral issues before they make their decisions on having intercourse (Kirby, 2007). The second element is personal and social skills, which is about teaching children to have the confidence to value themselves and others to become respectful for individual conscience and the skills to judge the kind of relationship they want; the third element is about accessing the knowledge and understanding of human sexuality, reproduction, sexual health, emotions and relationships (Kirby, 2007). The potential effect of SRE should be seen in these three areas, which includes reduction in tee nager pregnancy, and the chances of getting sexually transmitted diseases (STDs) and being sexually assault, etc. As SRE can either be given at home to the child by parents, in school by teachers, or in youth organizations, alternative educational institutions, or youth offending organizations by Shine staffs or trained peer educators and volunteers (Levy 1992). This essay is mainly going to focus on the teacher-led SRE given in school and discuss whether it is beneficial or not, with the support of the positive outcome of children having SRE in relation of STDs, pregnancy and peer violence, and also the actual fact of SRE being not useful, supported with the data of teenagers not receiving the knowledge they should have been taught in SRE, and high te... ...ax S(1997) Impact of HIV and Sexual Health Education on the Sexual Behaviour of Young People: a Review Update Godson, S. (2001) Boys+sex–education=crisis. Available online at: http://educationguardian.co.uk/Print/0.3858.4311559.00.html (accessed 4 December 2001). Holland, J., Ramazanoglu, C., Sharpe, S. & Thomson, R. (1998) The male in the head—young people, heterosexuality and power ,London, The Tufnell Press Kirby D. (2001) Emerging Answers: Research Findings on Programs to Reduce Teen Pregnancy. Washington, DC: National Campaign to Prevent Teen Pregnancy, 2001. Kohler et al. (2008)â€Å"Abstinence-only and Comprehensive Sex Education and the Initiation of Sexual Activity and Teen Pregnancy.† Journal of Adolescent Health, 42(4): 344-351. Kirby D. (2007) â€Å"Sex and HIV Programs: Their Impact on Sexual Behaviors of Young People Throughout the World.† Journal of Adol Sex and Relationship Education (SRE) Essays -- human sexuality and sex Sex and relationship education (SRE) is supporting children through their moral, physical and psychological aspects of growing up to be an adult, and making sure they have knowledge on relationships, sex, human sexuality and sexual health (Sex Education Forum, 2010). There are three main elements in SRE, the first element is attitudes and values, which is about developing positive values and be able to consider moral issues before they make their decisions on having intercourse (Kirby, 2007). The second element is personal and social skills, which is about teaching children to have the confidence to value themselves and others to become respectful for individual conscience and the skills to judge the kind of relationship they want; the third element is about accessing the knowledge and understanding of human sexuality, reproduction, sexual health, emotions and relationships (Kirby, 2007). The potential effect of SRE should be seen in these three areas, which includes reduction in tee nager pregnancy, and the chances of getting sexually transmitted diseases (STDs) and being sexually assault, etc. As SRE can either be given at home to the child by parents, in school by teachers, or in youth organizations, alternative educational institutions, or youth offending organizations by Shine staffs or trained peer educators and volunteers (Levy 1992). This essay is mainly going to focus on the teacher-led SRE given in school and discuss whether it is beneficial or not, with the support of the positive outcome of children having SRE in relation of STDs, pregnancy and peer violence, and also the actual fact of SRE being not useful, supported with the data of teenagers not receiving the knowledge they should have been taught in SRE, and high te... ...ax S(1997) Impact of HIV and Sexual Health Education on the Sexual Behaviour of Young People: a Review Update Godson, S. (2001) Boys+sex–education=crisis. Available online at: http://educationguardian.co.uk/Print/0.3858.4311559.00.html (accessed 4 December 2001). Holland, J., Ramazanoglu, C., Sharpe, S. & Thomson, R. (1998) The male in the head—young people, heterosexuality and power ,London, The Tufnell Press Kirby D. (2001) Emerging Answers: Research Findings on Programs to Reduce Teen Pregnancy. Washington, DC: National Campaign to Prevent Teen Pregnancy, 2001. Kohler et al. (2008)â€Å"Abstinence-only and Comprehensive Sex Education and the Initiation of Sexual Activity and Teen Pregnancy.† Journal of Adolescent Health, 42(4): 344-351. Kirby D. (2007) â€Å"Sex and HIV Programs: Their Impact on Sexual Behaviors of Young People Throughout the World.† Journal of Adol

Education and Understanding Will Reduce the Threat of Terrorism Essay

  Ã‚  Ã‚   Abstract: Globalization has had both negative and positive effects.   While some cultures accept globalization as a wonderful gesture, others reject it with violent force.   Since the main country involved in the notion of globalization is the United States, many countries, most of those who are adamantly opposed to globalization, call globalization "Americanization."   For the Muslims who supported the terrorists in the 9-11 attack, they label America's treatment of them as reason for their hatred of the United States.   They claim that the United States has forced them into a situation they want no part of, and hence, their actions were a statement of rebellion.   Other countries and other cultures feel that globalization is the answer; hence, they side with the United States and disagree with the Extreme Islamic concepts.   In my opinion, I feel that neither side is ultimately right or wrong.   Instead, I feel that some sort of compromise m ust be made through education and understanding.   While I do feel that the Islamic world will eventually have to globalize in order to compete with the Western world, perhaps the changes must be made with a greater understanding of their culture so that they would be more willing to accept it.   Both sides come from very different traditions and cultures; hence, if the Western world understood the Islamic world a little better and vice versa, I feel a compromise could be reached.   Education, like it is in so many debates, is certainly the answer here.    Paper Begins Below    In a multicultural world, there are many opposing views on globalization.   Some cultures and individuals accept it, while others do not.   Have the United States' attempts to globalize ... ...001/trade.center/tenants1.html>.    Porter Keith.   "America Discovers the Value of Friends. Globalization requires   Ã‚  Ã‚  Ã‚   cooperation. "<http//:www.globalization.about.com> 7 July 2002.   Ã‚  Ã‚  Ã‚   <http://globalization.about.com/library/weekly/aa091701a.htm?terms=   Ã‚  Ã‚  Ã‚   nato+article+5>.    Reich, Robert B.   "Will Terrorism Stall Globalization? " The American Prospect   Ã‚  Ã‚  Ã‚   Online 2 Nov. 2001.   2 July 2002   Ã‚  Ã‚  Ã‚   <http://www.prospect.org/webfeatures/2001/11/reich-r-11-02.html>.    Smith, Adam.   "The Wealth of Nations."   Vol 4. New York: Random. 1985.   Ã‚  Ã‚  Ã‚   5 vols.    Bin Laden, Osama.   "To Terror's Source:   Interview with Osama bin   Ã‚  Ã‚  Ã‚   Laden." ABC News on the Web 28 May 1998. 1 July 2002   Ã‚  Ã‚   <http://abcnews.go.com/sections/world/DailyNews/miller_binladen_   Ã‚  Ã‚  Ã‚   980609.html#4>.   

Advertising and Sales Promotions In The Internet Essay

Marketing has been one of the most significant gainers from the Internet revolution. Internet has been applied by marketers both as a medium as well as a product. Marketing has deployed it for communication of information, distribution of some of its products and for receiving payments from the customers. Internet based marketing plays a vital role in the exchange process. Internet marketing term became popular when computers started getting used in marketing extensively. Earlier, computers were used more for storing, processing and reporting of various marketing related information. But, with the entry of Internet the online data handling possibilities have virtually exploded the use of computer. This application has multiplied the use of computers faster among communities. Internet marketing profitably reinforces the concepts of marketing with the power of internet. It strengthens the existing delivery of marketing outputs and also opens newer avenues of marketing which were not possible to achieve before the arrival of internet. A marketer today can keep track of millions of customers simultaneously, segment them online, offer customized products to individual customers, fix different prices, provide varying contents and styles of information and deliver the products through appropriate modes of distribution to each of these customers. The details of such transactions and the characteristics of each of these customers can be stored for their dynamic utilization in future marketing opportunities with the customers. Estee Lauder’s anti ageing product ‘Advanced Night Repair Concentrate’   is able to make inroads in the customers mind. Internet will function as the medium for promoting the product.   Advertising and Sales Promotions: Like products and prices, customization of advertising and promotion are very much possible in internet marketing. Besides customization, the customer is contacted when he is giving, full attention to the computer screen. In fact, when a customer views any site he has done so after deliberate and conscious effort and choice. This increases his commitment to the message that he is viewing on the internet. Advertising generates a hierarchy of impacts like creation of awareness, interest, desire and action on the consumer. Different media are found to be better suited for certain kinds of impacts out of this hierarchy. Internet has been found to be amenable to finer tuning for most of these impacts. As a result, it is possible to better transport the customer from one level of impact to the next higher one and do so more quickly. The combination of this factor with the feature of individualization makes the output very powerful one. Besides this, the measurement of each of these impacts are also possible more easily and online. The promotions on internet can also be customized in a similar way. The internet marketing model suggests that commerce follows content and community. Since the internet phenomenon has occurred like an explosion there had been quite a rush to build up communities in the competitive environment. In this rush, many of the marketers tried to buy prospective customers into their communities net by offering a variety of incentives. This has caused internet marketing effort to be seen as overloaded with freebies in the form of consumer promotions. Personal Selling: The advantage of mass personal selling is made possible through internet for both customers and the marketers. Anti aging is a consumer product so Estee Lauders can get the maximum benefit by penetrating in this stream. The customers can identify the optimum provider for his unique sets of needs. Customer can also arrange for updating himself in the precise area of his interest although from the most extensive sources of information possible. The marketer can also store the historical data of individual persons and their behavior. These data can be then processed with the help of data mining and marketing decision tools. These data are utilized to provide solutions to the customers needs on an online and individual basis. The product can be configured exacting to the individual customer’s needs at the price and with a payment mechanism most convenient to him. The information and the persuasive appeals can also be tailor made for the individual customer. He can be reminded or provided with additional services as per his specific requests and all these information can be utilized in the design of next round of offering to him. This kind of individual personal service when offered on continuous basis becomes service to the customer of significant commercial value. Publicity:   Internet marketing has the capability of viewing existing customers through a wide variety of angles and compares the efficacy of each of these views. Various data mining tools available today are employed to do this job. They mainly utilize the processes of sorting, clustering and association seeking among the consumer characteristics. The history of the customer behavior in terms of past transactions and internet viewing generate rich data for this purpose of publicity automatically. Such data are often supplemented with the offline data collected through alternative sources. The customer segments created with such methodologies can have the advantage of being more dynamic because they can be created through online databases, more insightful because of the use of more powerful clustering and association seeking techniques and customers themselves selecting into a segment of mass market. On the other hand, the customers become empowered to scan much larger canvas of market and bargain for their purchasing power with a larger base of marketers. The customers can also create a large pool of knowledge by online sharing knowledge of their experience based knowledge among their peer customers. The interactivities gained by both marketers and customers have .the potential of unleashing very high levels of energy in the marketplace restricted only by the creative limits of the market players. Public Relation: The advantage of mass customization is made possible through Internet for both customers and the marketers. The customers can identify the optimum provider for his unique sets of needs. Customer can also arrange for updating himself in the precise area of his interest although from the most extensive sources of information possible. The marketer can also store the historical data of customers and their behavior. These data can be then processed with the help of data mining and marketing decision tools. These data are utilized to provide solutions to the customers needs on an online and individual basis. The product can be configured exacting to the individual customer’s needs at the price and with a payment mechanism most convenient to him. The information and the persuasive appeals can also be tailor made for the individual customer. He can be reminded or provided with additional services as per his specific requests and all these information can be utilized in the design of next round of offering to him. This kind of customization when offered on continuous basis becomes service to the customer of significant commercial value. Placement Of Product: Internet marketing is seen as attacking on the length of the distribution chain particularly the information flow related ones, much more efficiently and instantaneously. As a result it is often possible to reorganize the distribution chain at the cost of its length. The span of control can also increase considerably as many of the control related processes can be transferred to the computer. The saving in costs due to these effects is often considered as the most important contributions of internet marketing. The increased availability of distribution related information also causes information overload to the consumers. A new category of channel members, called infomediaries, have also emerged. These infomediaries primarily consolidate the relevant information about the availability of the products and pass them on to the consumers after suitably repackaging them. Besides pure infomediaries, the existing distributors do also rebundle their services after integrating the online and offline elements of their services. Internet also enables online distribution of digitized products. This helps in extending pinpointed reach to a large number of customers, eliminating the lead time between ordering and delivery, reducing the inventory requirements and smooth organization of transaction related data processing. Conclusion In the era of globalization, with marked technological strides has   revolutionized the exchange process of buying and selling of products on the Internet.   Internet marketing is a worldwide phenomenon.   Internet marketing has made inroads as the emerging mode of buying and selling of products to specific target groups with fast changing needs, preferences and life styles. Estee Lauders has the huge potential of promoting the anti aging product through internet. References Philip Kotler (2002) Marketing Management , Prentice Hall New York Charles F.,(2002) Internet Marketing, Wiley Publication Flippo Edwin B., (2001) Marketing Channels, McGraw-Hill. J Taylor Sims, J. Robert Foster, Arch G. Woodside.(1998) Marketing Channels: Systems and Strategies Harper and Row: New York

The opinions of Mill and Kant

Mill’s utilitarianism on Kant and Baxter’s argumentsIn John Stuart Mill’s arguments for utilitarianism, it can be observed that his concept of that which is â€Å"good† corresponds to the maximization of utility, or the promotion of the greatest happiness for the greatest number. Further, Mill maintains that right actions are those that primarily promote happiness while on the other hand actions that result to the reverse of happiness are wrong actions.At this point, it should be noted that Mill is arguing for the centrality of a form of consequentialism in his conception of actions and their resulting moral worth. That is, the moral worth or value of the actions of man can be assessed through the very consequences that they give rise to.As human conduct is essentially directed by the quest for happiness or utility, Mill elaborates further that the very directive of men to acquire happiness does not refer to individual happiness or the happiness of each pe rson taken singularly but rather to the collective happiness or the happiness for the greatest number of people. Among the numerous possible manifestations of such happiness that may be perceived, he further argues that the greatest happiness is to be sought after in connection to the greatest number of individuals. From this point, we are to analyze the arguments raised by Immanuel Kant and William Baxter on the aspect of rational agents juxtaposed with the issue of pollution.Both Kant and Baxter resort to the claim that men as rational agents should occupy the central role in ethical considerations. Prior to Baxter, Kant has already maintained that human beings, as agents imbued with and the capacity to reason, should not be treated as the means to possible or given ends. Rather what Kant strongly proposes is that human beings should be considered as the very ends themselves in the course of the actions of every individual. On the other hand, Baxter strongly argues in line with th e Kantian prescription for the acts of man. That is, man’s actions should be that which is what one ought to do.Mill will most likely tell us that Baxter’s conclusions do not eventually promote the greatest happiness for the greatest number of people in the immediate consequences of man’s actions towards the environment. Mill’s utilitarian principles will maintain that Baxter’s conclusions on the scope of environmental ethics merely prescribe what men ought to do.This prescription, when applied to several environmental issues such as man’s hunting for rare animals for the therapeutic values of their body parts, will most likely condemn the given example and other related instances. However, Mill will argue that, since the gathering of the body parts of such a rare animal will most likely contribute to the betterment and eventual happiness of the greatest number of human beings, the act in itself is a right act. The apparent consequences of s uch an action are deemed with the greatest amount of merit in classifying such action as morally right.For the most part, Mill might have instead argued for the claim that even if pollution becomes a result of the actions of man towards his environment, these same actions should be taken if it promotes the greatest degree of happiness for the greatest number of individuals as its consequence.Mill’s arguments cannot in any way directly support and uphold the ethical guidelines set forth by both Kant and Baxter in seeking the proper conduct for the status quo of the environment.Mill’s utilitarianism on Carr’s â€Å"Is Business Bluffing Ethical?†One essential feature of the utilitarian ethical doctrine is that its moral point of view rests firmly on the consequences of the actions made. That is, an action is then to be categorized as either good or bad depending on the consequence or result of the action intended. However, what differentiates the utilitarian principles from other ethical or moral tenet is that the former further qualifies the outcome of the actions as good in terms of maximum benefits conferred by the deed.In a sense, a good action, then, is one which has maximized benefits or advantages not to oneself but, more importantly, to the most number of individuals as well in the end. Thus, in essence, such doctrine of utilitarianism can be briefly summarized as one that seeks to establish â€Å"the greatest good for the greatest number.In adopting the principles being set forth by utilitarianism one is inclined to embrace the belief that the welfare of the majority is being taken with utmost concern and that, parallel to such aspect of utilitarianism, the greatest happiness or the benefit of the most number of people is seen as fitting enough to further accept the ethical theory of utilitarianism. The relative consequences in adopting these principles highlight a connection to the modern world inasmuch as the welfare of the majority rather than the individual is deemed to outweigh personal motives.Thus, the extent of Mill’s conception of the utilitarian doctrine will firmly hold that business bluffing is ethical so long as it promotes the good of the majority through the greatest good such an action is able to produce.For instance, when company executives are tasked to manage dealings or negotiations with fellow executives, customers, government authorities, labor groups, or the department heads of the same company the executives work in, they can resort to many forms of deception. The act of deceiving these â€Å"other† people in terms of its moral value can be analyzed through the apparent consequences such a conduct is able to make materialize.Especially in cases wherein the fate of the whole company or the status of the entire structure of the line of laborers is at stake, business bluffing is deemed right if and only if it is able to sustain the welfare of the general members of the company as its immediate consequence.Or even in the smallest of the departments in a business establishment, the relative gains of that small unit when taken as a whole should be reason enough, at least in Mill’s utilitarian approach, to pursue actions that will ensure the greatest gains for the greatest number in that department. These actions, in turn, are qualified as ethical and, hence, right under the utilitarian perspective as far as Carr’s notion on the extent of cases where the business â€Å"player† resorts to bluffing is concerned.On the other hand, the extent in which Mill will contradict Carr’s proposals for deception rests on the situation wherein bluffing does not promote the general welfare but instead advances the personal aims of the executive. In such cases, even if there are positive consequences for the businessman, the fact that the relative gains of the businessman for his own goes against the utilitarian principle of the maximizati on of the good. It ignores the crucial part of utilitarianism that prescribes actions which ensures the furtherance of the welfare of the majority.Thus, such an instance is essentially unethical inasmuch as it is not right as far as the tenets of utilitarianism are concerned.Kant’s ethical theory on DeJardins and Duska’s â€Å"Drug Testing in Employment†In order to analyze DeJardins and Duska’s claims in the article, an understanding of Kantian ethics should first be noted. Kantian ethics can be roughly started with the presumption that if we are to strictly follow the assertion that the goal of the lives of men is the attainment of happiness in general, then every individual will most likely be inclined to seek personal gratification so as to arrive at happiness.Nevertheless, the attainment of happiness is not entirely within the human capacity and that its actuality can be interpreted as a matter of chance that depends primarily on the varying capacitie s of man. No universal assurance on the attainment of happiness can then be seen. Consequently, by trying to remove cynicism and nihilism and by allowing the ethical norms of man to occupy the actions of all, it is necessary for these ethical doctrines to be unconditional such that there should be no exceptions and universal in the sense that these tenets should be applicable to every human being.Kant proceeds with his idea of the good will by defining it as a will that operates for the sake of duty and as a â€Å"good-in-itself†. For the most part, the concept of duty is central to the ethical precepts of Kant which he regards crucial by considering the difference that dwell between actions in accordance with duty and actions performed for the sake of duty. For Kant, the latter phrase is the only one that bears moral worth implying a greater moral worth in man’s actions that result from a person’s greater disinclination to act merely for the sake of duty. That is, if a person is motivated to do a certain act simply because one is entirely inclined to do such an act, then the act itself is considered to be bereft of moral worth.Duty for Kant is the inevitability or necessity of functioning out of a strict observation for laws that are universal. Consequently, the worth or value of the action done by the individual in terms of moral precepts is essentially drawn from the intention of the action thereby stressing the content of the actions in terms of intent as significant. This content can be further expressed in two manners. The first states that there are maxims or imperatives that stipulate that there are acts based on the desires of the individual. This is what Kant calls the hypothetical imperative. On the other hand, those which are based on reason and not merely dependent on one’s desires belong to the categorical imperative. The latter type deals with what ought to be done.All these can be roughly transposed and summarized in to Kant’s conception of the practical imperative that claims that one ought to act to treat human beings as ends in themselves and never merely as a means to any given end, whether the individual is the self or another person.Thus, in line with the arguments proposed by the authors of Drug testing in Employment, Kant will very well argue that drug testing among employees in companies is unethical for the reason that it treats the employees as mere objects or means in achieving the ends of set forth by the company. The delicate private information that are to be obtained from the drug tests, moreover, gives rise to the possibility that these information can be manipulated for sinister ploys even if the protection of these information is given due recognition.Moreover, as the authors of the article suggest, drug use is not always job relevant. If this is the case, then information concerning drug use is not relevant as well hence leading to the observation that drug tests are i rrelevant and that these only impair the centrality of man as the end for every action.The reason to these claims rests on two crucial aspects. First is that the practical imperative will not allow the treatment of the employees as schemes for the purpose of the upkeep of the employment status of the employer or of the company. Second is that drug testing undermines the rights of the employee thus, relegating our attention back to the first reason, undermining as well their existence as human beings and rational agents.ReferenceMill, J. S. (1863). What Utilitarianism Is. In Utilitarianism (pp. 4-16).

Money Cant Buy Health Essay

Ah, money. The grease that moves America. The love of which has perhaps caused more human anguish than perhaps any other object with the possible exception of abuse of the Bible, Torah or Koran by religious extremists. Money can’t buy health. All the money in the world can’t undo the damage caused by smoking, drug abuse, cancer, sex act, and a thousand other health problems which destroy one’s quality of life. Of course, if you are rich enough you can buy a new kidney or heart. But what is kind of life does one have fighting AIDS, cancer, a dead liver, destroyed lungs or a brain tumor caused by saturating yourself with pesticides, herbicides and other life-destroying chemicals? Money is an essential energy booster needed to see you through your life smoothly. It gives you a status symbol and you are placed in an elevation in the society. You are able to buy the best things available and your materialistic possessions give you a sense of elation. But is money the -be- all -in -life and is it enough if you have a big bank balance and many enviable things which only money can get you. No, nothing can be farther from truth. Money can get you many things in life which will give you a superficial happiness that gets sated very fast. There are many things in life money cannot buy. Can money buy you happiness? Of course it cannot. Happiness is a state of mind which has nothing to do with money. If money is needed to feel happy, then only rich people will be the happiest lot. In fact, it is the rich who feel a vacuum within them as money alienates them from the others. You might ask if money is not important. It is very much important to make you lead a life where your self esteem will not be affected by being dependent on others for your day to day survival. You should strike a correct balance between seeking money for your betterment and a mad rush towards it to keep in pace with other people’s wealth. If you start comparing you always feel lacking. Earn for yourself, not for competing with others. Give priority to your inner wealth, so that you can truly enjoy your materialistic wealth. Money can buy healthcare and medicine, but it cannot replace health once it’s lost. It’s far better to take preventative action such as watching what you eat, exercising, not smoking, and getting regular physicals than to rely on money to save you once your body has started to fail you. Money also can’t buy back your youth. No amount of money you make in the future will replace those days when your body could do anything easily and look good doing it. You can spend thousands on â€Å"treatments† to preserve your youth, but it’s an illusion. Once your youth is gone, no amount of money will get it back. If money could buy peace, I think we’d be there by now.