Circuit Soldering Assignment Essay Example | Topics and Well Written Essays - 500 words

Circuit Soldering Assignment - Essay Example It normally commences melting at 183 degree centigrade. Plastic solder differs subject to the proportion of tin and lead. Exhaust fan aids in preventing an individual from inhaling the solder fumes in the soldering station. Safety goggles prevents flying solders from entering the eyes of the person undertaking soldering process whilst clips aids in holding the work piece being join (Jepson, Tyler & Gregory, pp. 178-198). Moistening action is the flush action of solder, which normally develops intermetallic connection amidst the sections. It occurs when hot solder encounters with the copper surface forming a metal solvent action thereby making the solder to dissolves and infiltrates the prevailing copper surface. This makes the molecules of solder and copper to blend thus forming a new alloy with one part copper and the other solder (Jepson, Tyler & Gregory, pp. 167-189). The process solely occurs when the superficial of copper does not have impurity and corresponding oxide film. Suitable solder links is accomplished with cleaned surfaces with solvents before soldering process. Fluxes are utilized in overcoming oxide film on electronic and it mainly entail normal or synthetic rosins and chemical additives. A flux removes oxide during the soldering operation via flux action, which is extremely corrosive at the solder melt temperatures (Jepson, Tyler & Gregory, pp. 167-189). Melt temperature is normally responsible for the flux’s capability to rapidly removal of oxides. Nevertheless, in its underlying unheated state, rosin flux is normally in the non-corrosive and non-conductive thus does not affect circuitry. Moreover, fluxing action aids in removal of oxide, prevention of reformation of the new oxides thus allowing the solder to form the preferred intermetallic

Write a 2-page analysis of a possibe psychological analysis of the Essay

Write a 2-page analysis of a possibe psychological analysis of the Boston Marathon bomber recently charged with multiple counts of murder - Essay Example Testimony by a social worker indicated that the two boys before the police shot the older brother had been attending meetings and relying on a supportive network of friends that were immigrants to do away with the loneliness that they felt for lack of a family themselves. The fact that they were doing so while they had each other is indication enough that the boy is not a criminal mastermind but was clearly undergoing psychological problems at the time. The criminal mind would have been instigate by his brother who was into criminal activities and hence may have influenced him into engaging in the activities as a way to act out his anger and frustration at all the happy people while deep down he suffered from being alone and the loss of a dear brother whom had been looking up for him and at him since the parents left without a backwards glance towards their children or even reaching out to them (Cullen 98). The combination of the loss and grief from the death of the brother who was his guardian and best friend, the frustration by the parents divorcing and leaving to go to another country without their children, the loneliness and the fact that no one seemed to care about him or his situation not even the government drove him towards the edge of the behavior. The only way the brother had taught him to release his anger and frustration was by engaging in crime and this is what he did when he bombed the Boston Marathon. The fact that the bombing was carried out by pressure cooker that was released is a clear indication that the boy was not a terrorist as he lacked the sophisticated bombings or even a clearly made and elaborate escape plan. He was simply just acting out of the moment. I am sure that he had not even thought about committing the heinous act before and it was purely a spur of the moment probably triggered by the happy faces of people all around without a care in the world about

Animal Testing Controversy Essay Example for Free

Animal Testing Controversy Essay Each year, millions of animals suffer and die in the process of inhumane testing for the purposes of drug and chemical research, and medical experiments and training exercises. Animals including cats, dogs, rabbits, and mice are force fed harmful substances that are infected with lethal viruses causing reactions like brain damage, strokes, and heart attacks. Not only are these experiments painful to the animals and sometimes fatal, but also they fail to accurately reflect human reactions and are not required by the FDA. The primary reason why animal testing should cease to exist is because it is inhumane to strip a helpless animal of its rights for the benefit of experimentation and research. Animals have a basic moral right to respectful treatment . . .. This inherent value is not respected when animals are reduced to being mere tools in a scientific experiment.† (Lonestar) While animals cannot express themselves as humans can, they can feel, think, behave, and experience pain. Their inability to express themselves should not be taken advantage of. While the FDA encourages manufacturers to conduct whatever testing is necessary to ensure the safety of their products, it does not specifically require the use of animals. (FDA) The FDA actually encourages companies to consider alternatives before deciding that testing on animals is necessary. They advocate that research and testing for products use a maximum amount of useful scientific information and a minimal number of animals tested. When testing does occur, they advocate for the most humane methods available. The Food and Drug Administration supports the Animal Welfare Act and the Public Health Service Policy of Humane Care and Use of Laboratory Animals. If companies are not required by the FDA to test their products on animals, there is no reason that it should be a method that is resorted to for experimentation. Not only is animal testing morally incorrect, but it is also not the most effective method to conduct research on products to be used by humans. In fact, 92 percent of experimental drugs that are safe and effective in animals fail to tell us that they are too dangerous or ineffective on humans. (Do Something) When conducting an experiment for safety and efficacy on animals, the purpose is to try the product on a living system before exposing it to a human. But the complicated living system of a human being barely compares to that of a helpless small animal. For example Aspirin and chocolate are harmful to cats and dogs while they remain completely unharmful to humans. There are many alternatives that can be used in place for testing on animals. â€Å"Alternative† tests are those that meet one or more of the standards of the â€Å"three R’s: They replace procedures that uses animals with one that doesn’t, reduce the number of animals used in the procedure, or refine a procedure to alleviate or minimize potential animal pain. (DoSomething) While not all of the ‘R’s’ are a complete solution to animal testing, putting any of the three in place would make a significant impact on the lives of many animals. As citizens and consumers, there are ways that we can stand up for the cause of the animals being tested. Many animals are harmed in the process of experimentation for educational purposes. We can demand that our alma maters stop using animals for this purpose. Buying cruelty-free products is something that can be done as a consumer to take away business from companies that test their products on animals. We can make sure that when donating to charities, we choose those that dont experiment on animals. As citizens, we can request from our government legislation that requires alternatives to animal dissection and the immediate implementation of humane, effective non-animal tests. (PETA) Opponents would have you believe that it is okay for animals to be tested on so that humans and sometimes animals would suffer less in the future, however, â€Å"We should be concerned about how animals are treated in research, and [†¦] eliminate the number of animals who suffers† (ASPCA). Researchers are concerned only with their results and not the harmful process it takes to get them. It is clear that not only is animal testing cruel and necessary, but ineffective. However with alternatives to testing and strategies of protest, it’s possible for us to begin to diminish animal testing.

Unexpected Critiques in Walden Essay -- American Literature Thoreau Es

Unexpected Critiques in Walden In Walden, Henry David Thoreau utilizes many different styles and themes to explain his ideas about shelter in further detail. Thoreau uses lists, long and short sentences, imagery, and different narrative voices. But out of all the things Thoreau uses to strengthen his argument, the most powerful is his unexpected comparisons and his sarcasm towards shelter. Thoreau uses these to get the reader interested, but more importantly it gets the reader to reconsider his/her contentment and think about how ridiculous society was then concerning shelter. Early in "Economy", Thoreau writes about shelter in regards to how humans first came to use and later need shelter. The passage starts off by explaining how some person a long time ago decided to dwell in a cave for shelter. Through Thoreau's word usage and imagery, his idea that humans do not need shelter is clear. He starts this argument with the topic of child rearing. He states that since a child "loves to stay out doors, even in wet and cold," the instinct to have shelter is not biological (Thoreau 28). It must be something that is taught to children, most likely from observation. At the same time no one, even Thoreau, knows where and how this instinct originated. He just knows that "in the infancy of the human race, some enterprising mortal crept into a hollow in a rock for shelter" (28). In using words and phrases like "primitive," "the infancy of the human race," and "most primitive ancestor" the reader understands how important shelter has become to the human race because it is so deeply rooted in human's minds (28). From here Thoreau dives into a long list of how humans have developed their shelter over time, from "roofs of palm leave... ... afford just to be "civilized." He states all the, "benefit[s] of the improvements of centuries, [like] spacious apartments... [and] Venetian blinds" (31). He finishes off this long list of expensive luxuries with the main idea of this passage: Why is the civilized man making himself more poor by renting while the savage lives in relative luxury in his "wigwam." Thoreau's main tools in persuading the reader are his uses of light sarcasm and comparisons and critiques based on animals, savages, and civilized people. When backed up with logical reasoning, these two tools make the reader really step back and think about his/her happiness in regards to shelter. In making the reader reevaluate everything about shelter, Thoreau keeps the reader interested and in turn, the reader keeps on reading the book. Which, in fact, is all Thoreau really wants in the first place.

Listo System Essay

Introduction Listo system is a recognize graphic service company which deals with all the graphic related programming having a long successful history. Due to the persistence effort of management, the company got a tremendous achievement in a very short period of time and in early 1990’s the organization become one of the top graphic service companies in the globe. Different factors have encountered the company in different ways. The technological advancement, change in consumers need and demand, competitors are the major components affecting the listo system. The impact of power shifting from the Seller to the Buyer As Listo system has been growing tremendiously in the graphic designing world but the company was not able to cope with the market growth appropriately. The above case shows that company was not able to utilize the Latest technological invention in the best effective way so they are not able to produce the goods and services according to the customer needs and demand. By viewing the lacking in the market, different competitors emerges and occupy the vacuum created by the listo system. Latest technology also helped the competitors for the production of the quality product which met the consumers taste and preferences. This create a extreme competition in providing the quality of goods and product in a reasonable price between the competitors. Today’s customers are so much aware about the quality and price of the product. So, the availability of the substitute product leads to increase in bargening power of the customer and to consume those goods and product which are of high quality with a reasonable price. Employees are the most valuable assets of any company. But the listo Company was not able to satisfy their employees in different aspect. Employees satisfaction and motivation leads to the profit maximization of every business firm. Different training, incentives, rewards, and encourgemnt need to be given for every employees so that they will give every possible outcome to the organization. Listo fails to serve these things but focuses only on the profit and market optimization. Lacking the proper researches relating to the customer’s choice and preferences in the graphic designing field by the company leads company to lose its market share. Similary, a company lacks visionary leadership who can easily trace out all the future possible  problem in advance and prepare the necessity strateg y to strengthne the market leadership. Thus, a company compel to shift their power to the customer. External Factors Affecting Listo System There are various External factors that affect the listo system. They are explained below: Technological advancement The latest invention of different technology helped the listo system very much in different sectors. With the latest technology, they are capable of producing the services in very short period of time using the available resources in the best effective way according to the need of the customer choice. Quality of products can also gradually increases with minimum inputs that will decrease the price of the product can be a market leader. Customers Expectation Customers are the one of the most important factor that affect the listo system. Different factors need to be considered by the listo system inorder to get the customer attraction. Different customers have different choice and preferences to satisfy their need the listo system has to produce such a product that meet the all their expectations. Competitors We cannot control any activities of our compititors but we can build different strategies to cope with the action taken by our competitors. Many competitors have emerged in the graphic designing sector which is creating great competition in the market. This leads the company to provide the best quality products and services to its customers in reasonable price than other. 1. Listo Systems: The Challenge of a Growing Organization Defining the Context Listo Systems, one of the world’s top graphic service companies, was established in the 1990s when technological advancements were increasing and creating a more competitive market. After going through a period of great success and growth, the company decided to hire a number of new employees and adding new layers of managers and supervisors. Defining the Key Issues or Problems The main issue is that Listo Systems has been growing too quickly, and the company has not been able to cope with this growth appropriately. Due to this situation, causal variables such as lack of proper training for new employees, management becoming less concerned with workers’ opinions and more concentrated on production and profit have eroded. As a consequence, there has been a lack of clearness regarding the company’s objectives and goals, and as a result of this there have been intervening variables such as decreasing employee motivation and productivity which provoked personnel turnover rate to increase and amount of sick days taken doubled. Applying Concepts Organizational Level 1: Key Players (Stakeholders) and Business Ideas (Purpose) In this level, â€Å"(†¦) implementing business ideas in the internal and external environment is affected by the stakeholders, key players, or factors whose helping or hindering roles determine success or failure to the organization.† This level involves establishing, refining and monitoring the vision of the company so it can synchronize stakeholders and key players with the business ideas and purpose of the organization.

Essay about mariettashaw - 1054 Words

Personal Success Plan Checklist and Worksheet Walden’s PersonalSuccess Plan offers students a blueprint for professional and academic success. Life can interrupt even the best made plans, but the Walden University staff and faculty are here to help. Use this checklist and worksheet to seek and use your newly acquired academic knowledge with the additional resources we provide for your success. Under each category you will find many components that you can use like a checklist. Then you will find a space to fill in some information about your goals in this category. Talk about your plans in this area: have you already done this? What do you need to do? How will you do it? When? Finally, at the end of this document is a†¦show more content†¦Discuss what, how, and when you’ll accomplish these tasks as part of your success plan. (address at least 2 of these) If my computer goes out I plan to go to the library or the local community college to complete any coursework Professional Guidance Establish a financial plan for your time in college. Consider your program and potential career path during and after your degree. Update your resume (Walden’s Career Services offers a free software called Optimal Resume). Identify and catalog your professional skills; determine what skills are necessary to obtain your professional goals. Sign up for a Walden Career Services Webinar. What are your plans for Professional Guidance? Discuss what, how, and when you’ll accomplish these tasks as part of your success plan. (address at least 2 of these) I have updated my resume and Ive also signed up for Walden Career Services Webinar Time Management Schedule an appointment with your advisor, and look closely at your competing obligations. Contact and review resources on time management at Walden’s Career Services Website. Utilize time between terms for designing an action plan; work to make school a crucial space in your intellectual life. Make steps to create a space for learning in your life, and never miss an opportunity to gain useful knowledge when it is presented to you. What are your plans for Time Management? Discuss what, how, and when

Essay on Schizophrenia - 1131 Words

The wrinkles prove a life full of pain and confusion, but love overcame all of his emotions. She, a Picasso painting of beauty, remained still. Their life was perfect, never fighting, but only happiness. In reality, although paintings remain beautiful, they still fade, and his perfect scenery, with a pill was fading to less of his liking. Schizophrenia is not just about split personalities, mental disorders, or diseases; for some people, it is a way of life. As read in the passage above, an example of Delusional Schizophrenia was presented. This is just one of many disorders that are established with schizophrenia. Delusional Schizophrenia relates symptoms involving beliefs of others treating them unfairly, plotting against them, or†¦show more content†¦That is only one percent of the population. Children at the age of five years old can have schizophrenia, but it is very rare. At this young age hallucinations or delusions are very rare. Mostly boys have Schizophrenia, but if girls, boys, men and women put together they all average out. Frequently thought at young age just hyperactivity and in need of riddlen, or children show signs by keeping to themselves, not wanting to interact with their own peers. Not only has a childhood developing disorder had it carried into old age. In old age the symptoms seem to weaken, but actually they stay persistent. Only with time do the symptoms become more familiar, and the patients become m ore adapt. This disorder is more likely to be inherited than just to occur. If a parent has Schizophrenia it is ten times more likely for the child to have it than just a parent with no trace of it. Early diagnoses are better for the childs later life. The earlier diagnosed the more apt they are to the medicine and the effect is greater and more effective. Scientists have proven that approximately 10 percent of teens and young men are higher than any suicide rate over all. According to Professor Don H. Hockenbury, schizophrenia is a psychological disorder that involves severely distorted beliefs, perception, and thought processes. Experiencing an entirely different inner world, one that is often characterized by mental chaos, distraction andShow MoreRelatedSchizophrenia And Its Effects On Schizophrenia815 Words   |  4 Pagesand has schizophrenia. According to Mayo Clinic â€Å"Schizophrenia is a severe brain disorder in which people interpret reality abnormally. Schizophrenia may result in some combination of hallucinations, delusions, and extremely disordered thinking and behavior. Contrary to popular belief, schizophrenia is not a split personality or multiple personality. The word schizophrenia does mean split mind, but it refers to a disruption of the usual balance of emotions and thinking. Schizophrenia is a chronicRead MoreSchizophrenia And Its Effects On The Development Of Schizophrenia Essay2173 Words   |  9 PagesSchizophrenia Schizophrenia is a life-long disorder that affects about one percent of the population (Mueser McGurk, 2004). The cause of this mental illness is still unclear. Studies have suggested that Schizophrenia does not arise from one factor but from a combination of genetic, environmental, and social factors (Liddle, 1987). People diagnosed with Schizophrenia struggle to deal with a multitude of symptoms that make it difficult to function (Mueser McGurk, 2004). Antipsychotic medicationsRead MoreSchizophrenia Poster Research Topics : Schizophrenia1715 Words   |  7 PagesSchizophrenia Poster Research Topics K - What is schizophrenia? Schizophrenia is chronic, severe, and a brain disabling disorder; that has affected people throughout history. It also interferes with a person’s ability to think clearly, manage emotions, make decisions and relate to others. People with the disorder may hear voices other people do not hear. They may believe other people are reading their minds, controlling their thoughts, or plotting to harm them. This can terrify people with the illnessRead MoreSchizophrenia Essay949 Words   |  4 PagesSchizophrenia One of the major concerns of modern medicine is Schizophrenia. Frey defines schizophrenia as a group of disorders marked by severely impaired thinking, emotions, and behaviors (99). Straube and Oades incorporate more on its definition by saying this illness evokes a fundamental disturbance of personality (92). According to Gottesman, schizophrenia didn’t exist before the 19th century. He found many facts that lead to this hypothesis, finding no existence of this illness inRead MoreSchizophrenia Essay1411 Words   |  6 PagesSchizophrenia is affecting people more now than a few decades ago. This illness is across the US and is present in every culture. People are now aware and understand how the illness can be devastating to one’s life. Schizophrenia is a mental disorder of the brain but it is highly treatable. In the US the total amount of people affected with the illness is about 2.2 % of the adult population. The average number of people affected per 1000 total population is 7.2 % per 1000, which means a city thatRead MoreWhat Is Schizophrenia?1499 Words   |  6 PagesWhat is Schizophrenia? The study of schizophrenia dates back to the early 1800’s, when a guy by the name of John Haslam published a book called â€Å"Observations of Insanity†. In his book he goes into detail about the case studies or patents that show symptoms that we could categorize as schizophrenia disorder (John Haslam). By the end of the 19th Century the concept of schizophrenia was made known by a German psychiatrist by the name of Emil Krapelin. He basically took what he learned from HaslamRead More Schizophrenia Essay1017 Words   |  5 Pages Schizophrenia is a mental disorder that affects about one percent of the population. Generally if you have schizophrenia you cut out of contact with real world reality. The word Schizophrenia is Greek for â€Å"split mind†. It is common belief that a person with schizophrenia or a â€Å"schizo† has a split personality, but actually the person’s thinking, feelings, and behavior are so far from normal that they get to th e point where they interfere with their ability to function in everyday life. People whoRead MoreAbnormality and Schizophrenia1532 Words   |  7 PagesAccording to Mathers et al., (1996) â€Å"Schizophrenia ranks among the top ten causes of disability worldwide and affects one in one hundred people at some point in their lives.† (Cardwell and Flanagan, 2012). Schizophrenia is a severe mental disorder which is commonly diagnosed in 15-30 year old individuals. It disrupts a person’s cognition, perceptions and emotions, making it extremely difficult to diagnose. Bleuler (1911) introduced the term schizophrenia, which translates as ‘split-mind’ or ‘dividedRead MoreSchizophrenia Essay879 Words   |  4 PagesIt has been widely accepted that schizophrenia has a genetic component, with the relative lifetime risk of schizophrenia being reported at around 0.3-0.7% (McGath et al, 2008) although some studies have shown this to be much higher at around 3.5 % (Pedersen et al, 2014). Studies have shown the risk of relatives developing schizophrenia is correlated with the percentage of shared genes (Tsuang, 2000). Twin studies have been utilised to reveal a genetic component, as monozygotic (MZ) twins share 100%Read MoreSchizophrenia Essay1066 Words   |  5 Pagesis schizophrenia? Schizophrenia is a mental disorder characterized by irrational thought processes. A person dealing with this debilitating illness may think that people are going to kill them, or kidnap them. Some Schizophrenics often have â€Å"voices† in their heads telling them what to do. In some cases this has caused people to take their lives or try to. Schizophrenia is everywhere you look. Out of one hundred thousand people at least one hundred and fifty people have schizophrenia. Like