Industrial Revolutionists Thomas Edison

During a time of industrial economic revolution there were few people who were recognized as major contributors to the country†s evolvement. Among these people were Andrew Carnegie, John D. Rockefeller and Thomas Edison. These three men possessed incredible intuition, genius and personal determination that shined brightly throughout their extraordinary lives. Each individual proved to be nothing less than successful in his career by striving to surpass his competitors and by constantly trying to reach goals that were practically unattainable. In this essay I will cover each individuals life and accomplishments, identify how these men helped the nation fix its domestic economic flaws and explain why I think they were successful over achievers rather than â€Å"robber barons. † Andrew Carnegie was one of these individuals. Although he was born poor, he did not let his financial disability get in the way of success. He started out his career at the bottom of the social latter. In fact his first job was working as a bobbin boy at a textile mill. He labored more than sixty hours a week receiving $1. 20 for each week†s work. As horrid as this seems, he displayed his potential by becoming Pittsburgh†s fastest telegraph reader. Unbelievably he read the telegraph by reading the sounds of the keys by ear. After decoding many of the city†s business leader†s messages, Carnegie developed an insider†s view of their operations. Finally, in 1852 a superintendent of the Pennsylvania Railroad, Tom Scott, hired Carnegie as his secretary and personal telegrapher. He worked as the railroad†s telegrapher for seven years until Scott was promoted to vice president of the company. This enabled Carnegie to be promoted to Scott†s former position. Now that he had the ability to â€Å"stretch his legs† he showed just how valuable of an employee he was. He did this by doubling the company†s road mileage and quadrupling its traffic. Not too long after, his annual income rose to almost $60,000! Even though Carnegie had already embodied the â€Å"rags to riches† dream he was not satisfied. In the 1870†³s he decided to build a steel mill. He furnished it with nothing but state of the art steel producing technology. He named it the J. Edgar Thompson Mill. With the combination of his management knowledge and intuition he learned how to produce steel much more cheaply than his competitors. He did this by salary cutbacks and by making sure no materials were wasted. â€Å"Watch the cost, and the profits will take care of themselves. † This was his motto and what he firmly believed in. Because Carnegie could see the â€Å"big picture,† he began vertical integration (controlling all aspects of manufacturing). This gave him the ability to control every thing from the extracting of raw materials to the selling of the finished product. Basically, Carnegie had built a monopoly (exclusive control over the entire steel commodity). By now Carnegie had help in running his company. Along with his business associates, he developed a partnership with Henry Clay Frick who eventually became the chairmen of Carnegie Steel. With Frick†s leadership, profits constantly rose giving Carnegie more time to focus on his philanthropy. Carnegie felt that â€Å"fortunes corrupted their possessors†, so he donated over three hundred million dollars to philanthropy projects! This funding helped establish foundations and proved to be beneficial to universities, libraries as well as his popularity. About ten years later, the aged Andrew Carnegie agreed to sell Carnegie Steel Company to J. Pierpont Morgan. It was agreed that Morgan would buy the company for five hundred million dollars. Once the transaction was complete, United States Steel was born. Carnegie proved himself to be a self made man of success who started at the bottom and trudged his way to the top. With his amazing intuition and decision making ability he built an empire that made a notch in American history and helped bring about the industrial revolution. John D. Rockefeller, the founder of Standard Oil Company, also played a role in the industrial revolution. He too longed for wealth and prosperity. He went about this by making many little decisions rather than huge ones. He did this by adjusting every single aspect of his oil company until it was a finely tuned money making machine. He stressed the importance of â€Å"providing a reliable product† and used the latest techniques in ensuring the quality of his products. Like Carnegie, his crude business techniques along with his extraordinary intuition in the understanding of the industry provided for a complete monopoly over the industry. He displayed his power by pricing his products below cost. This caused his competitors and merchants that refused to sell his products to go under financially. By 1879, Rockefeller owned ninety percent of the nations oil refining capacity. Unlike Carnegie, Rockefeller devised a plan to merge all of the competing companies into one giant system. He did this by persuading stockholders of forty companies to exchange their stock for certificates of trust. He formed a board of trustees to run all of the companies. This proved to be a remarkable idea indeed because within three years the Standard Oil Trust had cut the number of refineries in half. This resulted in a rapid growth of Standard Oil and its spread to several other continents. Because other fields of manufacturing began to catch on to Rockefeller†s tactics, monopolistic control began to rise in different areas of the country. This provoked the public to ask for an investigation of trusts and their operations. In 1890, Senator John Sherman led Congress into passing the Sherman Anti-Trust Act which outlawed trusts and contracts or combinations in restraint of trade. It also established fines and jail times as penalties. Because the government vaguely defined â€Å"trust† and â€Å"restraint of trade† few were prosecuted. When Rockefeller and Standard Oil were finally challenged in 1892, he simply transformed his nine trustees into the board of directors of Standard Oil. This helped the company elude prosecution and caused the continuation of growing profits. Like Carnegie, Rockefeller found the loophole in the economic system and took advantage of it. But he also displayed his keen sense of intuition and decision making by making decisions that helped his company adapt to the changing laws. He too showed that through hard work, determination and understanding of one†s surroundings a person could be successful. The third of these successful individuals is Thomas A. Edison. An inventor born in 1847, he believed in hard work and self-promotion. Like Carnegie and Rockefeller, Edison envisioned an interconnected industrial system founded. This though was being founded on the basis of technology. Through out his life he had many inventions having the stock quotation printer as his first. The profits he received from the sale of the printer†s patent gave him enough money to build his very own â€Å"invention factory†. After the invention of the telephone, Edison focused on electric light. During this time he invented the phonograph which gave him even more determination and self-motivation to develop a new filament for incandescent light bulbs. He finally perfected a process of generating electricity and found a filament that would glow dependably in a vacuum. Backed by J. P. Morgan in 1882, the Edison Illuminating Company opened a power plant that furnished light for eighty-five buildings. Even though Edison was prospering, he did have competitors stealing his ideas. One example would be George Westinghouse. Westinghouse developed a system that used alternating currents of electricity to provide cheap high voltage power. Of course Edison sued, but it cost two million dollars to defend his patents and relinquish control over his enterprises. Like Carnegie and Rockefeller, Edison merged with a competitor in 1892 to form General Electric. Just four years after, GE agreed to exchange patents with Westinghouse in order to dominate the market. Edison continued to pump out invention after invention. By the time he was done, he had 1,903 patented inventions and had put together an estate worth over six million dollars. Thomas Edison did not quite achieve the financial status Carnegie and Rockefeller did, but he did follow the same path and ended up with a fortune. His presence is still felt every time someone turns the light on. That is definitely an admirable achievement. His inventions helped shape our nation and contributed greatly to the industrial revolution. Although Andrew Carnegie, John D. Rockefeller and Thomas Edison were considered â€Å"robber barons† or tycoons, the big picture can be over looked. During their time many things such as industrialism and business techniques were evolving into a new era of technology and business. It is obvious that these three men were born with an incredible intuition for the industries they were in. It†s not to say no one else of their time shared this ability, but they were among the few who â€Å"reached for the stars† instead of a weekly pay check. These men put into perspective what pursuing the American dream is all about. It was their personal determination and work ethic along with their keen intuition that enabled them to be successful. Many people feel as if it was their greed that lead them to monopolize their chosen industry, causing other competitors to suffer. I think it hadn†t much to do with greed at all. Like any successful person they set their goals beyond their limits. They did nothing more than try to accomplish as much as possible in their lifetime. Doing so they found flaws in the nations economic system and capitalized on them. If anything, this provided for the correction of these flaws and the betterment of the nations domestic business structure. Of course there were those at the bottom of the social chain that suffered, but that still lives on today. Andrew Carnegie, John D. Rockefeller and Thomas Edison not only contributed to our country†s industrialization and economic growth, but also proved that the â€Å"American dream† does exists and can be achieved if one puts forth enough of himself to grasp it.

History of organic chemistry Essay

Chemistry has been called the science of what things are. Its intent is the exploration of the nature of the materials that fabricate our physical environment, why they hold the different properties that depict them, how their atomic structure may be fathomed, and how they may be manipulated and changed. Although organic reactions have been conducted by man since the discovery of fire, the science of Organic chemistry did not develop until the turn of the eighteenth century, mainly in France at first, then in Germany, later on in England. By far the largest variety of materials that bombard us are made up of organic elements. The beginning of the Ninetieth century was also the dawn of chemistry, all organic substances were understood as all being materials produced by living organisms: wood, bone, cloth, food, medicines, and the complex substances that configure the human body. Inorganic material was believed to come from the Earth: salt, metals, and rock, just to name a few. Because of the human’s wonder of natural life, organic materials were believed to possess an enigmatic â€Å"Vital Force.† Thus organic chemistry was separated from inorganic chemistry, and it became it’s own field of science. By the turn of the Nineteenth the â€Å"Vital Force† theory was immensely discredited, but this branch of science still stayed separated from inorganic chemistry. Back when Organic chemistry was the chemistry of living matter, Professor Wohler succeeded in synthesizing in the labo†¦ The name organic chemistry came from the word organism. Prior to 1828, all organic compounds had been obtained from organisms or their remains. The scientific philosophy back then was that the synthesis of organic compounds could only be produced within living matter while inorganic compounds were synthesized from non-living matter. A theory known as â€Å"Vitalism† stated that a â€Å"vital force† from living organisms was necessary to make an organic compound. 1828, a German chemist Friedrich Wà ¶hler (1800-1882) amazed the science community by using the inorganic compound ammonium cyanate, NH4OCN to synthesize urea, H2NCONH2, an organic substance found in the urine of many animals. This led to the disappearance of the â€Å"Vitalism† theory. Today, chemists consider organic compounds to be those containing carbon and  one or more other elements, most often hydrogen, oxygen, nitrogen, sulfur, or the halogens, but sometimes others as well. Organic chemistry is defined as the chemistry of carbon and its compounds. Organic chemistry is also known under the short-term organic. The organic chemistry as a branch of chemistry can be viewed and engaged in the carbon content. Particularly the structure, composition and the chemical reactions of carbon will be investigated. To the organic chemistry include the elements that go with the carbon compounds. Therefore we understand today as the organic chemistry, the chemistry of carbon compounds, and not focusing only on the compounds from nature. The organic chemistry is, however, also limits for inorganic chemistry. This limit is usually denied to the concept of hydrocyanic acid. The division of natural science in organic chemistry and inorganic chemistry is historical. The term â€Å"organic† was first used by Berzilius about 1810 because by then all investigated compounds derived from living organisms and in the laboratory could not be synthesized. Berzilius found it impossible to produce organic compounds from nature artificial. This theory was refuted, however, then in 1828 by the chemist Friedrich Wohler. In later times it was always more to produce organic substances synthetically, which contained all the carbon. The simplest organic compounds consist only of the elements of water and carbon. Only compounds such as carbon oxides, carbonates, carbides and cyanides are expected to inorganic compounds. Before the nineteenth century, chemists generally believed that compounds obtained from living organisms were endowed with a vital force that distinguished them from inorganic compounds. According to the concept of vitalism (vital force theory), organic matter was endowed with a â€Å"vital force†.[8] During the first half of the nineteenth century, some of the first systematic studies of organic compounds were reported. Around 1816 Michel Chevreul started a study of soaps made from various fats and alkalis. He separated the different acids that, in combination with the alkali, produced the soap. Since these were all individual compounds, he demonstrated that it was possible to make a chemical change in various fats  (which traditionally come from organic sources), producing new compounds, without â€Å"vital force†. In 1828 Friedrich Wà ¶hler produced the organic chemical urea (carbamide), a constituent of urine, from the inorganic ammonium cyanate NH4CNO, in what i s now called the Wà ¶hler synthesis. Although Wà ¶hler was always cautious about claiming that he had disproved the theory of vital force, this event has often been thought of as a turning point.[8] In 1856 William Henry Perkin, while trying to manufacture quinine, accidentally manufactured the organic dye now known as Perkin’s mauve. Through its great financial success, this discovery greatly increased interest in organic chemistry.[9] The crucial breakthrough for organic chemistry was the concept of chemical structure, developed independently and simultaneously by Friedrich August Kekulà © and Archibald Scott Couper in 1858.[10] Both men suggested that tetravalent carbon atoms could link to each other to form a carbon lattice, and that the detailed patterns of atomic bonding could be discerned by skillful interpretations of appropriate chemical reactions. The pharmaceutical industry began in the last decade of the 19th century when the manufacturing of acetylsalicylic acid (more commonly referred to as aspirin) in Germany was started by Bayer.[11] The first time a drug was systematically improved was with arsphenamine (Salvarsan). Though numerous derivatives of the dangerous toxic atoxyl were examined by Paul Ehrlich and his group, the compound with best effectiveness and toxicity characteristics was selected for production.[citation needed] Early examples of organic reactions and applications were often serendipitous. The latter half of the 19th century however witnessed systematic studies of organic compounds, Illustrative is the development of synthetic indigo. The production of indigo from plant sources dropped from 19,000 tons in 1897 to 1,000 tons by 1914 thanks to the synthetic methods developed by Adolf von Baeyer. In 2002, 17,000 tons of synthetic indigo were produced from petrochemicals.[12] In the early part of the 20th Century, polymers and enzymes were shown to be large organic molecules, and petroleum was shown to be of biological origin. The multistep synthesis of complex organic compounds is called total synthesis. Total synthesis of complex natural compounds increased in complexity to glucose and terpineol. For example, cholesterol-related compounds have opened ways to synthesize complex human hormones and their modified derivatives. Since the start of the 20th century, complexity of total syntheses has been increased to include molecules of high complexity such as lysergic acid and vitamin B12.[13] The total synthesis of vitamin B12 marked a major achievement in organic chemistry. The development of organic chemistry benefited from the discovery of petroleum and the development of the petrochemical industry. The conversion of individual compounds obtained from petroleum into different compound types by various chemical processes led to the birth of the petrochemical industry, which successfully manufactured artificial rubbers, various organic adhesives, property-modifying petroleum additives, and plastics. The majority of chemical compounds occurring in biological organisms are in fact carbon compounds, so the association between organic chemistry and biochemistry is so close that biochemistry might be regarded as in essence a branch of organic chemistry. Although the history of biochemistry might be taken to span some four centuries, fundamental understanding of the field only began to develop in the late 19th century and the actual term biochemistry was coined around the start of 20th century. Research in the field increased throughout the twentieth century, without any indication of slackening in the rate of increase, as may be verified by inspection of abstraction and indexing services such as BIOSIS Previews and Biological Abstracts, which began in the 1920s as a single annual volume, but has grown so drastically that by the end of the 20th century it was only available to the everyday user as an online electronic database.[14] The Importance of Chemistry in Everyday Life During laboratory technique 1 we learned how to separate insoluble liquids from solids by means of filtration, and how to separate a dissolved solid from a liquid by means of evaporation. I have often asked myself the importance of some of the required classes in my schedule and how they can relate to everyday life. I believe in the saying that if you don’t use it you will lose it, meaning that if the concepts I learn cannot be applied to something that I will remember on a daily basis then the possibilities of me not remembering them at all are greater. This is especially true if you’re not a science or medical major as I am not. However in this class I am discovering that things we are learning can definitely be applied to processes that my mind uses daily and procedures that are performed daily and are as close to me as my own kitchen. In pondering the idea of filtration and evaporation I begin to think of the water that I drink on a daily basis. Without even being aware of the process I have been using filtration on a daily basis. I purchased a filter for my sink a number of years ago to improve the taste of my water and get rid of what I called the (bad things) that my body didn’t need. At the time I had no idea I was making a scientific decision and using a scientific method. I had determined that the water in my house did not taste well and that the taste could be improved. Listening to others who had boasted about the success of filtered water I decided to test their hypothesis out for myself. I bought from the local hardware store a basic water filter system that could be attached to the faucet of your sink. Supposedly this water filter would remove the harmful substances from my water and improve the taste. I tested the hypothesis by first pouring myself a glass of unfiltered water and sitting it aside. I then attached my filter system and poured myself a glass of filtered water. I tasted both and observed the differences in each taste. The hypothesis was now justified in my eyes, the filtered water tasted better. I offered my hypothesis to my husband and children and allowed them to make their own observations. We all agreed that the filtered water tested better. The hypothesis had now become theory in my household. Now since this class I’ve been observing just how this filter system works. I have discovered that the residue that remains after filtering in some way affected the taste of my regular tap water. I have since learned that this residue consists of salt and other stuff that could definitely dramatically affect the test. Interestingly enough though, this filtration process didn’t start with me. Scientist years ago began to filter water for health reasons. Elements that are deadly to our human bodies (such as chloride) are filtered out daily through our elaborate water system to ensure that our water is healthy to drink. Without this process we would have entire cities dying just like the colony of Jamestown centuries ago! Wow I guess science is a necessary in my daily life, I just never knew that’s what it was called.

Aggressive Behavior In Pre School Children And Young People Essay

Aggressive Behavior In Pre School Children And Young People Essay According to the American Academy of Child Adolescent Psychiatry, children as young as preschoolers are capable of aggressive behavior. Children younger than five years of age can display different forms of aggressive behavior. These different behaviors can come in the form of temper tantrums, fighting, pushing and even actions that are directed toward harming animals. The behaviors that are exhibited should be taken seriously as they tend to carry over into adolescence and many times adulthood. Aggressive behaviors should be addressed in children because their potential for harming others or themselves is high. Young children, younger than the age of five, who are prone to pushing, biting and hitting, in some cases, display this type of aggressive behavior in order to get attention. Others develop behavior that stems from frustrations of toilet training, illness, hunger, moving, divorce and even the birth of a new sibling. Some of this behavior tends to disappear as the child gets older and begins to develop a greater level of social skills and are able to deal with not being the sole recipient of attention. Educators and parents alike who learn to recognize the onset of these behavioral tendencies have a better chance of addressing the behavior and getting the proper attention in order to attempt to prevent these behaviors from escalating. Children who have not learned to deal with aggression by the age of four or five often need to have intervention sessions that are conducted by mental health professionals. Some children respond to therapies alone while some need therapeutic sessions and medications to control their aggressions. Being able to recognize some of the signs of potential aggressive behavior in young children are related to those who do not often interact with others, children who do not listen or follow Aggressive Behavior in Pre-School Age Children 2 Directions, those who seem unattached and do not make eye contact; these signs tend to signal a child may develop aggressive behavior and should be watched for in an environment like a classroom. Why Young Children Show Aggression Most young children who push, hit or grab are doing so to get attention and get their way, according to the California Childcare Health Program (CCHP). Many children between the ages of one and five have not developed the skills necessary to communicate properly to make their feelings and desires known, and are more likely to experience frustration in group settings, or if the child has limited motor control and verbal skills. This frustration comes out in the form of aggression, writes the CCHP, and can be exacerbated by child stresses like hunger, toilet training, illness or tiredness. Still others may display aggressive behavior following a major environmental change such as a new sibling, a divorce or a move. Photo Credit temper image by Lisa Eastman from Fotolia.com Children as young as preschoolers are capable of exhibiting violent behavior, according to the American Academy of Child & Adolescent Psychiatry (AACAP). Aggressive and violent behavior can be upsetting to everyone around a child, and should always be taken seriously regardless of how young the child is. Because children who are aggressive often continue to have related problems as they get older, it is important to address behavioral problems early.

Consultancy Report Essay Example | Topics and Well Written Essays - 2000 words

Consultancy Report - Essay Example North Hook Gas is a subsidiary of Exxon Mobil (24%), Qatar Gas (67%) and Elf Petroleum (8.35%) (Nationalgrid, 2014, p. 1). The operations of North Hook Gas are faced with a number of sustainability issues. In order to address these sustainability issues, it is vital to formulate a change management approach for sustainability. This will be achieved through consultancy. The resultant report will identify all the barriers and drivers for change, and provide realistic proposals that will move the firm from a first wave firm to a third wave firm. North Hook Gas faces a number of sustainability issues. The sustainability issues that affect the operations of North Hook Gas can be divided into the external and internal categories. All the sustainability issues faced by North Hook Gas have a bearing on the firm’s external environment. The first external issue that affects the operations of North Hook Gas is the environment in which the firm is located. The terminal is located within the Pembrokshire National Park (BBC News, 2007, p. 1). The location of the park raises a number of environmental issues, particularly within the scope of environmental pollution. The second external sustainability issue is concerned with the risks posed by the firm. The local community is concerned that the pipeline will leak gas, which might cause safety and health issues. The third external issue that affects the firm is waste management. The firm must have a capacity to handle, remove or dispose all hazardous materials coming from the facil ity. Pollution is also a major sustainability issue that affects the operations of North Hook Gas. The internal operations of the firm contribute to carbon dioxide emissions. Additionally, the terminal is the largest in the world, which means that it receives a lot of sea and road traffic. This also contributes to carbon dioxide emissions (Hydrocarbon-Technology, 2014, p. 1). The internal sustainability issues faced by North Hook Gas include the lack

Adoptive Children, it's in Their Genes Essay Example | Topics and Well Written Essays - 500 words

Adoptive Children, it's in Their Genes - Essay Example The abstract suggests that certain personality traits can either be learned or simply inherited. The article presents the case of Jenae Neiderhise whose biological traits resemble that of her adoptive parents. However, her difference with them is marked by her educational achievement as she finished her doctoral degree. She is currently a psychology professor. On the contrary, the adoptive family had family members who weren’t able to finish college. Jenae tried to research about her biological family and later learned that some of her relatives were also highly-educated. As a consequence, she took interest in researching about genetics, particularly that of adoptive families. In fact, she is not just an ordinary researcher. Her findings were even funded by the National Institutes of Health, an institution that studies families and open adoption. The early findings of her research were presented in earlier issues of the journal. Nevertheless, the article presents the following interesting revelations that Neiderhise stumbled upon her research: Other important findings such as impact of inheritance on religiousness, environmental impact, aggression, academic achievement and ability to bond were included in the article. In conclusion, the article illustrated that genetics still play a role in most traits although it does not fully answer the question: nurture or nature? Rather, the article asserts that interaction of environment with good genetic factors is the real thing. It argues that: Â  "The way you parent has an impact on your child, but part of the way you parent is determined by your child," says Neiderhiser. "Its not your fault if things go wrong, nor do you get all the credit if things go

Methods for Teaching Essay Example | Topics and Well Written Essays - 500 words

Methods for Teaching - Essay Example The lecturer then winds up the lesson with an expanded explanation and demonstration concerning the topic to accomplish assimilation and understanding (Mertig, 2003). A good example is a teacher preparing to lecture on a topic on mental illness. The teacher will ensure that he or she provides adequate information to the students inform of narrating and demonstrations. Demonstrations include showing pictures of a mentally ill patient and showing their symptoms through a picture or video while teaching. Lecturing involves defining mental illness, stating the possible causes of mental illness in the society then providing methods of managing mental illness, which can be drugs or therapies. The students will take notes and ask questions at the end of the lecture before the teacher comes up with a test to determine whether his or her students understood what mental illness is all about. Simulated practices offer students with opportunities to be involved in patient care experiences they may not have an opportunity to encounter in actual clinical settings for example coming across a patient with mental illness. These patient situations may have high impact events they may not experience in their normal classroom learning. Simulation offers an opportunity to assess clinical verdict of a mentally ill patient. It gives an opportunity to students for them to critically analyze their actions, reflect on their own set of skills, and assess the clinical verdicts of others (Davis, 2007). Simulation promotes active learning and participation because it allows the students to participate in taking care of the mentally ill patients and be able to identify their strengths and weaknesses while handling the patients. It is through participation that they are able to judge and analyze critically whether class work is what happens in the mental institutions. Simulation provides a new avenue for educators and researchers to improve nursing education and practice as well as

Stem cell treatment for parkinsons disease to produce dopaminergic Annotated Bibliography

Stem cell treatment for parkinsons disease to produce dopaminergic neurons - Annotated Bibliography Example Specifically, scientists have established that PD affects specific neurons that produce dopamine in the brain. Since the disease kills these dopamine producing neurons, stem cells provide a potential solution for replacing the dopamine producing neurons. Scientists can use specific stem cells to produce dopamine-producing neurons in vitro. Kriks et al., (2011) stated that engaftable DA neurons can survive in vitro for months. Through previous stem cell studies, researchers have established the embryonic and fetal neurons can be used to reverse the effects of PD on the dopamine producing neurons in the brain. This enables them to study the disease in depth. Moreover, the laboratory produced cells can them be introduced into the affected PD patients such that they replace the damaged ones and cause a reversal of the Parkinson’s disease. These studies are yet to be conducted on humans because of the uncertainties and side effects realized. However, their findings provide hope tha t stem cells can provide the much needed treatment for Parkinson’s disease. This paper presented an annotated bibliography of 10 research papers on the subject of stem cell treatment for Parkinson’s disease to produce dopaminergic neurons.The research studies present various findings that support the potential of stem cell treatment for PD to produce dopaminergic neurons, which are killed by the disease. However, the studies also present other findings related to the potential and efficiency of stem cell treatment for PD. Cova, L., Armentero, M., Zennaro, E., Calzarossa, C., Bossolasco, P. et al. 2010.‘Multiple neurogenic and neurorescue effects of human mesenchymal stem cell after transplantation in an experimental model of Parkinson’s disease.’Brain Research, vol. 1311, pp. 12-27. The purpose of this study was to explore the neurogenic as well as

The effect of domestic violence on children with in the United Kingdom Essay

The effect of domestic violence on children with in the United Kingdom - Essay Example 149). However, the legal and policy response to these problems has operated upon a presumption that service provision for women who experience domestic violence is also sufficient to meet the needs of children and young people (Mullender & Morley, p. 2; Parkinson & The invisibility of children who experience domestic violence stems from an apparent reluctance on the part of researchers to conduct child-focused qualitative research on this issue (Mullender et al., p. 2). Consequently, few studies have engaged with children and young people about their experiences of domestic violence (but see NCH Action for Children, 2004; Hague et al., 1996; McGee, 2000; Mullender et al., 2002, Gorin, 2004). This is despite significant efforts in family and social policy research more generally to involve and consult directly with children and young people about their views and experiences (Hallett & Prout, 2003; Smart et al., 2001). As a national umbrella organisation, The Womens Aid Federation of England and Wales (WAFE) have been at the forefront of refuge provision for women and children who flee domestic violence. Refuges frequently accommodate women and children fleeing domestic violence not just from their local area but also from outside the area (Ball, p. 35). WAFE supports 270 refuge organisations and manages 567 safe houses across England and Wales (WAFE, 2001). However, the number of refuge places available today still falls short of the recommendation of the 1975 Select Committee on Violence in Marriage that there should be one family refuge place per 10,000 of the population (WAFE, 2001). Refuges have long struggled to attract enough central or local government funding to survive. Consequently, they have historically been funded from a variety of sources. These include local authority housing departments and social services departments, charities and trusts, housing

Surface and Interface States of Ga Compound Research Paper

Surface and Interface States of Ga Compound - Research Paper Example The paper discusses various issues related to the gallium compound semiconductors including both the interface and the surface properties. It discusses the formation of the surface state and the charges at the interface state when interfaced with various metals. Background Surface state: Intrinsic and extrinsic A considerable number of clean semiconductor surfaces show signs of both intrinsic and extrinsic surface states. Surface states of materials can be defined as the electronic states that are found at the material’s surface. Surface states are formed as a result of the sharp transition from solid materials that terminates with the surface. Surface states are usually found close to the surface in the atomic layer. The changes of the electronic band structure to vacuum from the bulk materials are caused by the surface material termination. After the termination of the surface material, a weakened potential is created at the surface which leads to the formation of new electr onic states know as the surface state [3]. The bands of the solid on the surface of semiconductor crystals get related to vacuum energy since it takes a considerable amount of energy to remove the electrons from the crystal to the vacuum. This due to the fact that the formation of crystal from far separate atoms lower the energy hence the high amount of energy involved in the electron removal. The chemical bonds at the surface of the crystal have their periodic pattern interrupted at the surface which in turn results into unsaturated bonds [1]. After the interruption, the unsaturated bonds then rearrange themselves through surface reconstruction which may be saturated by a layer of atoms. The re-arrangement of the saturated bonds results in changes in both the allowed energies and the surface crystal structure. The formation of surface states can be best described by Bloch’s Theorem which allows the wave vector function to be a complex number. In principle, an imaginary wave vector corresponds to a damped wave function which is exponential in nature. In perfect finite non physical crystal that does not experience periodicity violation and experiences a translational symmetrical break allowing wave vector with nonzero imaginary components [6]. With the conditions fulfilled, it can therefore be shown that the resulting states are localized at the surface. The energies of the formed states are located at the surface which forms a separate band of surface states. The number of atoms per area at the surface of a crystal greatly determines the number of surface states per area of the crystal. The number of states can however be compromised of states in the crystal without boundary would have contributed to the conduction bands or the valence bands [5]. In the case of intrinsic semiconductors, the number of filled surface states is equivalent to the number of electrons removed from the bulk valence band due to the change in neutrality. The filled surface state s are considered donor like states given that they have electrons that can be donated to the empty available states. Empty surfaces states on the other hand can be considered as acceptor like given that they have empty available surface states which can be occupied by electrons [3]. Intrinsic surface states Intrinsic surface

The Learning and Growth Perspective Essay Example | Topics and Well Written Essays - 750 words - 1

The Learning and Growth Perspective - Essay Example The use of Balanced Scorecard is a very important aspect of the business compared to other performance management strategies; it responds immediately progress, feedback and changing business conditions. Various successful organizations like Futura Industries have used this strategy of the Balanced Scorecard and it is evident that the strategy has positively contributed to the companies’ success over years. A Futura Industries is an international company based in Utah led by Susan Johnson. It has more than 50 years of experience in aluminum design, extruding, fabrication, finishing, and machining. They needed a plan to help the business grow over years. Susan Johnson, the president of Futura Industries came up with the idea of deploying the Balanced Scorecard in the organization. She argued that for success to be evident in the company, employees’ welfare is the key to success. She believed that employees are very important assets to the company that need to be treated w ith utmost care and respect. She says that; Futura does not only require great machines, but also great people. For an organization in its success in its endeavors; â€Å"The opportunity for personal growth is one of the keys to maximizing employee motivation† (Bruce & Pepitone, 1999, p.9). Susan Johnson considered growth, innovation, and learning quadrant of the Balanced Scorecard as the most important aspects for the company’s growth. A company’s success goes hand in hand with its foundation which is molded by the employees. For Futura company success to be evident, Susan Johnson says that the company not only expects success to come from the employees but also its customers. Good Customer care service leaves a promising fact to the company that the customer will still come back someday. The Balanced Scorecard has helped Futura Industries in that, the company set goals and provided a safe, challenging and enjoyable workplace for the employees. Futura industrie s used the strategy of hiring and people and retaining the best people in the market and customer devotion which highly contributed to its competitive advantage with the other rival companies in the market. To maximize employees motivation in Futura, Johnson came up the idea of implementing surveys to the employees such as; Employee friendly initiative at Futura, Birthday Review, Leadership Review, Certification and Training Matrix, and an Annual Performance and Personal Development Review. Performance appraisal in an organization can be widely measured in different aspects as in the case of Futura. It contributes on determining the employees view regarding the company in general and what improvements should be done. Generally, â€Å"productivity can be increased significantly if supervisors set a specific production goal and provide attention and support to the workers† (Grote, 1996, p.6). At the end of every year, employees at Futura Industries complete the Employee Friendl y Initiative survey which records in excess of 60 benefits and other factors that are important to the employee such as; Sports team membership, Medical benefits, spouse scholarships, and flextime options are discussed. The survey asks the employees to give their views about the review benefits. In the case of Birthday Review, the employee is given the review survey in the same

Analyse Noras character throughout the play Essay Example for Free

Analyse Noras character throughout the play Essay In A Dolls House Ibsens use of language reflects on the dramatic change we see in Noras character. Ibsen uses issues that arose during the 19th century to construct themes and most importantly build up characters, all with their own distinctive language. Noras character changes from the beginning of the play to the end and Ibsen does this with the use of her change in language. At the beginning of the play, Nora is still a child in many ways, listening at doors and guiltily eating forbidden sweets behind her husbands back. She has gone straight from her fathers house to her husbands, bringing along her nursemaid to emphasize the fact that shes never grown up. Shes also never developed a sense of self. Shes always accepted her fathers and her husbands opinions. And shes aware that Torvald would have no use for a wife who was his equal. But like many children, Nora knows how to manipulate Torvald by pouting or by performing for him. In the end, it is the truth about her marriage that awakens Nora. Although she may suspect that Torvald is a weak, petty man, she clings to the illusion that hes strong, that hell protect her from the consequences of her act. But at the moment of truth, he abandons her completely. She is shocked into reality and sees what a sham their relationship has been. She becomes aware that her father and her husband have seen her as a doll to be played with, a figure without opinion or will of her own; first a doll-child, then a doll-wife. She also realizes that she is treating her children the same way. Her whole life has been based on illusion rather than reality. When we first see Nora and Helmer together in the beginning of Act One she is Extravagant and we notice that she is financially reckless; Oh yes, Torvald, we can be a little extravagant now cant we? Just a tiny bit? Youre getting a big salary now, and youre going to make lots of money. She uses short phrases within a series of questions and exclamations: this shows her child-like behaviour. She is influenced by money, having no independence and always relying on Helmer, she doesnt understand the value of it. He gives her status. Nora has a Fast tempo whilst speaking; this shows her excitement and childlike behaviour, pooh. When talking to Helmer Nora is manipulative, she uses his nicknames on herself in order to please Helmer, squanderbird. She is scared of Helmer (as a father figure he may punish her), therefore accepting anything he says; Very well, Torvald. As you say. She is Flirtatious and plays with his coat buttons in order to get what she wants. Noras domination in the conversation with Mrs Linde and her use of repetition of the word I shows that she is in a sense showing off and trying to be superior in front of Miss Linde. We see this in Act One when she meets with Mrs Linde; I too have done something to be happy and proud about. It was I who saved Torvalds life. Nora is trying to gain respect from her friend by revealing a secret that she thinks will illustrate her practical side, showing that she is a supportive wife and has also had to face troubles. Years from now, when I am no longer pretty, Nora keeps the secret from her husband to maintain status quo. She will tell him in the future when she is no longer pretty and she will need to gain his respect through other means than playing games and dressing up. Ibsen uses Prosodic features: fast tempo, emotional; in order for us to know that that here Nora is erratic. In Noras two long speeches, on pages thirty six and thirty seven we learn more about her character through her use of language.

Studying Management Information System Of Starbucks Information Technology Essay

Studying Management Information System Of Starbucks Information Technology Essay In this thrilling subject, i would be focusing on the Management Information System of Starbucks. It is no doubt that this firm in question, is one popular and well patronised firm amongst many. That being said, i would be doing justice to the very background of this organization in question and i would elucidate in tangible details their IT systems, schemes and practices and lastly, i would be recommending what i see fit to suite the organisation even in this era of technology. But before i proceed, i would like to briefly define MIS(Management Information System) MIS (Management Information System) This may be defined as a general word for computer systems in an enterprise or organisation which provides information or details on firms business operations. Its also refers to the people who manage and maintain these systems. Furthermore, in a large corporation, MIS or the MIS department refers to a central or centrally-coordinated system of pc expertise and management, and entire network of computer resources in a business organization (firm). Starbucks was first introduced in Seattles Pike Place Market in 1971. Back then, the company was called Starbucks Coffee, Tea ans Spices before change into what we have known today, Starbucks Coffee Company. Today, there are approximately 16, 706 Starbucks stores in 50 countries. The first ever Srabucks store in Malaysia opened on December 1998, located at KL Plaza, Jalan Bukit Bintang, Kuala Lumpur. Later, there are more than 115 Starbacks stores in Malaysia.Basically, their buyers will travel to Africa, Asia and Latin America to choose only the best quality of arabica beans. These high quality beans will be sent for roasting and production. Starbucks experts then only combine the roasted beans with Italian style expresso beverages to produce different type of cold and hot coffee beverages. The famous products introduced by Starbucks company and mainly can be found in all of its stores include more than 30 blends single-origin premier arabica coffees. As for their own signature of handcrafted beverages such as hot and iced expresso beverage, coffee and non-coffee blended beverages Vivanno smoothies, Frappuccino bottled coffee or blended and premium ice creams with the and brewed coffee and also tea product,Tazo Tea. Merchandises are also offered by Starbucks are coffee mugs and accessories. Customers not only can enjoy sipping their high quality coffee beverage but also indulging on baked pastries, sandwiches and cakes. The company focuses in providing a relax, comfortable atmosphere with modern fittings. It is an ideal place for hanging out with friends and families, with entertainment magazines to read. Most of the Starbucks company offer free wi-fi for their customers, so it is a great advantage to business people discussing on their work or students doing some research for assignments/ projects. POS P.O.S which stands for Point of Sale is a front-of-the-house system use by Starbucks company. Only employees with given authorization can access to this system such as Assistant Manager, Shift Supervisor, and Store Manager. Types of transactions can be made by the manager include paid in, paid out in the cases of emergencies or using the cash to buy supplies needed by the store. Other than that, making amendments for transaction mistakes in a form of refund. Important for inventory control as well. List of all food and beverages and merchandise sold are recorded in the P.O.S system. Wastage cost might as well be stored. All these vital information of dailys operation are transferred to a Management Work Station system to be analysed and evaluated. The information will be transform into a measurable data for decision making purposes. Manager Work Station (MWS) Manager Work station is the back of house computer system which prepares and sends all store information to adequately manage all parts of the store business. It brings access to real-time system wide reporting at store level. It shows all the various functions provided on the Intelligent Restaurant Information System (IRIS), of which some are only usable by partners with the accurate security. It helps the store manager to manage the store and also help the franchisees manage their entire market chain. It can be used in the office where there is a pc connected to an intranet of which is a private link channel for staffs to use the organization network that resembles the internet. It is required to log on with a passkey and ID to use the system. The system detects security level and allows using the method assigned to the security level. The staff can only use the time button option, which is a method that saves staff clock in and out for lunch and shifts. A begining of day and end of day is also saved into the very system on a daily bases. Shift managers can use cash control methods that are used to count cashboxes, change or fix transactions and to make ready everyday bank deposit. A menu of available reports is provided on a report menu. The Store manager can use these reports to follow sales, check customer transactions within various hours range, to view sale by product category, to save wastage, to carry finance audit. All these informations are relevant to Store Managers for them to pin out business requirements and customer needs, to check peak time in the store, to maximize or change product ordering, to manage wastage and monitor stock and choose whether it is necessary to reduce labour. Managers can use staff information and personal records in the work station, they can place new partners, cut off partners, manage employee records, watch employees training and process payroll. The payroll process carries over details to the support centre in order to pay partners. Store Manager and the shift supervisors can use the IRIS System to process electronic ordering for food, stationery, packaging. Hardware Example of hardware used for the computer system in Starbucks company include ISDN (Integrated Services Digital Network) modem and speed touch cable modem. These two are connect the Starbucks computer system to its retail network system. Wireless internet connection by T-mobile allows consumers to have the access of the available wireless network. Cisco Wireless and Cisco Routers are the type of equipment used as well. Other hardware output devices used include printers to process receipts. For security purposes, chips and pins for the payment made by credit card or debit card. A confidential security number (Pin number ) is required when making payment by either of these two cards. No signing is required. Further more, the Starbucks firm, uses Intel based systems and fast Computers. In terms of functionality, the Starbucks firm is bent on getting hardwares(PC) that have great and outstanding specifications to avoid slow down on business. A sample spec would be: A PC with 512 Memory or 1GB. And A flat screen monitor and processor speed of 2.40GHZ and a HDD of 150GB to 200GB. The company has a nac for greater heights that why its no surprise that Starbucks is doing greatly well in terms of their ability to maintain their standards. Software OS (Operating System): As we all know, the I.T age is springing forth with lots of softwares and technology all with the focus of improving the lives of humans in all ramification of life. Having said that, the Starbucks company makes use of Windows based softwares for their computers which is categorized in the hardware section. They run applications that aid their business. Example POS, Excel and others. Excel is often used for their spreadsheet needs. When it comes to system software for driving their hardwares, they run windows XP or 7. Current themes and practices This Starbucks new idea of POS was introduced earlier this year and only available in all 6,800 Starbucks stores in the United States. This process only applicable to consumers with Blackberry or iPhone. The first steps will require consumers to download the Starbucks Card Mobile Application to their phones. Once he / she enters their registered Starbucks gift cards number into their phone and when they obtained the application, the card number is automatically saved. Consumer upon arriving at Starbucks counter can just inform the employee to make payments for their order via mobile phone. He / she then opens up the Starbucks Card Mobile Applications, choose the payment screen in the application where the 2D bar code appear showing the consumers Starbucks card. When this process is completed, Starbucks employee will key in payments made by mobile phone in the P.O.S system and asked the consumer to place their phones under the customer facing imager for scanning. The 2D bar-code is de tected and treated the transactions in the likes of a giftcard, based on the normal payment verification procedures. Consumer can just enjoy their coffee once the transaction is done. However, there are some setbacks of this new P.O.S strategy implemented by Starbucks. First, not all retailers practice the use of stored value card or known as giftcard. Secondly, Starbucks focuses on potential users with key smart phones, such as iPhone and Blackberry. It only covers the consumer demographic of savvy consumers at the U.S where most the people are iPhones and Blackberry users compared to consumers in Malaysia. Not all Starbuckss mobile payments scheme is negative since this methods of payment can actually help Starbucks to cover up the cost of operational system, able to record loyalty data of consumers and balance of cash as well. Since payments are charged on the consumers giftcard, means that the 2D bar-code payment system is actually connected to the card. Besides, payment made th is way is different compared to the legislation for payment made by credit card or debit card . Evaluation: 4).Starbucks also runs a high scale of management in handling their I.T related issues. They are I.T aware such that, they have good network services. An example would be, Starbucks offers free WIFI Zone. An attraction for a customer on the move. The firm has VOIP services for communication with other chains around the globe. As we live in a net centric age, Starbucks has made it a perfect fit, to incorporate most I.T business related schemes into their business. A good analyses on this company, would however show us that Starbucks uses the I.T based things to build their customer range. It is however no secret that most competitors have based their examples on companies in the likes of Starbucks. Some practices in Starbucks, include some discount sales issued by the management. A customer however sees this as a grand opportunity to have a 50%(Percent) discount on whatever he buys and also enjoys free internet. This indeed is a wise practice. The ManagementInformation system has in many ways, made things easy for staffs. Most messages to staffs are communicated via the network. As fore mentioned, Starbucks uses intranets and internet(Voip). This helps in forwarding swift messages to workers in the company. In addition to the newest development of MIS, payments made via mobile phones currently introduced in the Unites States is also one of the best P.O.S strategies to reduce the cost of operation. This company also makes judicious use of their MIS by running web based adverts and all. The firm keeps its customers continuously aware of products and new recipes that might be tried in a given time. Thus, their market base increases undoubtedly. Marketing Analysis: Retails: Recommendation: In my opinion having patronised Starbucks from time to time, i would suggest the following: Starbucks should try in purchasing a reasonably fast internet with low traffic. They should try to maintain their hardwares and try upgrades from time to time, to avoid being left out in the dark age of slow computing. They should employ staffs that are more I.T learned to avoid difficulty in system operations. They should embrace more of touch screen services. And what i mean is, buying gadgets(hardwares) that provide self service for each customer. The MIS should continually see to it that customers are intrigued by the brilliant I.T based services that Starbucks provide thus leaving the customers spell bound to return and purchase more items . They could also provide on screen advertisements for new generation hardwares this in itself, could be an avenue for Starbucks to get paid for advertising for I.T firms in the cities and wherever . They could also make a web based system, that would enable customers to order online to ease driving out of the office at lunch. Conclusion: At this juncture, it is important that i reiterate that it is of immense importance that the MIS in Starbucks embraces more heightened technology hardwares to ease the work load and the number of staffs. We all in the world are aware of the generation of computers. This promises to be huge and phenomenal turn in every industry especially industries like Starbucks. As we see Managements improve their information systems, it would be an important part for Starbucks to play in their MIS. With an improved and well balanced MIS, Starbucks has what it takes to battle up for the future even competitors. Time is of the essence for firms like Starbucks this is because each day slips away and more upgrades are made to databases. To this end, i would beseech Starbucks, to keep up the very good work and embrace a new era of improved management systems. Thus increasing their profit base and client base.

The car industry: Dilemmas

The car industry: Dilemmas 1. Introduction The car industry faces a crucial weight problem resulting from increasing customer demands in terms of safety and performance. This trend leads to fully equipped cars in all classes getting more luxurious and comfortable. To escape from this vicious circle car manufacturers are forced to take action in the form of lightweight concepts. Light metals are seen as a promising opportunity to decrease the weight of a car. An increasing use of metals such as aluminium in the automotive industry shows that there is still large scope for improvements. Using aluminium car body panel is just a representative example of weight-saving effort did by car manufacturers. Aluminium has some properties that make it ideal for car bodies. The strength of aluminium frame and extruded sections is approximately the same as that of steel. However, the rigidity of aluminium is lower than that of steel. That is partly due to the modulus of elasticity of aluminium that is just one-third that of steel. (1) The effect is that aluminium has a higher elastic distortion when exposed to the same force as steel. Therefore the simple replacement of steel by aluminium engine is not an optimal solution as it does not exploit the whole scope of the advantages of aluminium. New ways need to be pursued to make full use of aluminiums advantages as a light weight material, which means it can be supplied in various aluminium alloys. Although the requirement for improved corrosion resistance and light-weighting are significant factors for use low-carbon steels in the manufacture of cars, (1) this traditional material still has some advantage such as higher strength and lower price. Many kinds of steel and aluminium alloys can be found commercially using in producing car body panels. Each material has its own characteristic. 1.1 Steel Steel is known as an alloy consisting mostly of iron, with carbon content between 0.2% and 2.1% by weight. (3) One of the main factors contributing to the utility of steels is the broad range of mechanical properties which can be obtained by heat treatment. For example, easy formability and good ductility may be necessary during fabrication of a part. Once formed very high strength part may be needed in service. Both of these material properties are achievable from the same material. All steels can be softened to some degree by annealing. The degree of softening depends on the chemical composition of the particular steel. (4) Annealing is achieved by heating to and holding at a suitable temperature followed by cooling at a suitable rate. Similarly, steels can be hardened or strengthened. This can be accomplished by cold working, heat treating, or an appropriate combination of these. Cold working is the technique used to strengthen both low carbon low alloyed steels and highly alloyed austenitic stainless steels. Only reasonably high strength levels can be attained in the carbon low alloyed steels, but the highly alloyed austenitic stainless steels can be cold worked to rather high strength levels. (5) Most steels are commonly supplied to specified minimum strength levels. Heat treating is the primary technique for strengthening the remainder of the steels. Some common heat treatment of steels is listed below: Martensitic hardening Pearlitic transformation Austempering Age hardening The recyclability of steel is brilliant and it is economically advantageous to do so. It is cheaper to recycle steel than to mine iron ore and manipulate it through the production process to form new steel. (6) 1.2 Aluminium-based alloys In the Earths crust, aluminium is the most abundant (8.3% by weight) metallic element and the third most abundant of all elements (after oxygen and silicon). Because of its strong affinity to oxygen, however, it is almost never found in the elemental state; instead it is found in oxides or silicates. Aluminium was isolated in small quantities early in the 19th century and it remained an expensive curiosity until 1886 when discovery of an economic method for its electrolyric extraction. Since then, the emergence of aluminium as a practical, commercial metal has relied primarily on the availability of electricity at economic prices. Aluminium is obtained from bauxite which is the name given to ores containing 40-60% hydrated alumina together with impurities such as iron oxides, silica and titania. Two steps are needed in the production of aluminium. First, alumina is extracted from bauxite. Second, use electrolysis to dissolve the alumina in molten cryolite and a typical electrolyte contains 80-90% of this compound and 2-8 % alumina together with additives such as aluminium and calcium fluorides. (7) Because the cryolite has a melting point as high as 1010?, the electrolysis of it needs a temperature of about 960? which wastes lots of energy and makes the cost of producing aluminium relatively higher. However, a new methodCambridge FFC which comes from the production of titanium, was introduced to China. This method use a NaCl-CaCl2 electrolyte which has a lower melting point of 520?, even lower than the melting point 660? of aluminium. By using alumina and liquid aluminium as negative electrode, the expanded reacting area on negative electrode allows the electrolysis of alumina to happen, which can theoretically reduce the electrolysis temperature to the melting point 660?. This research opens a new chapter of production of aluminium and will dramatically reduce the cost of producing aluminium some day. Generally speaking, about 85% of aluminium is used for wrought products which are produced from cast ingots. (8) The structures of alloys are greatly changed by the various working operations and thermal treatments. Each individual class of alloys behaves differently, with composition and structure dictation the working characteristics and subsequent properties that are developed. Casting aluminium alloys are also important parts of Al. Apart from light weight, the special advantages of aluminium alloys for castings are the relatively low melting temperatures, negligible solubility for all gases except hydrogen, and the good surface finish that is usually achieved with final products. Most of the cast alloys also show good fluidity and composition can be selected with solidification range appropriate to particular applications. (1) Casting alloys normally have mechanical properties that are inferior to wrought products and these properties also tend to be much more variable throughout a given component. 2 Study of possible alloy using for producing car body 2.1 Steel At present, low carbon steel sheet is most commonly used in car body production. Low-carbon steel has good machinability. Its strength and rigidity can fully meet the car body strength requirements, as well to meet the body welding requirements. 2.1.1 Low carbon steel Steel with low carbon content has properties similar to iron. Low carbon steel is the steel containing approximately 0.05-0.15% carbon. Content influences the yield strength of steel because it is a BCC structure and carbon atoms fit into the interstitial crystal lattice sites. (3) These carbon atoms reduce the mobility of dislocations. But it has a hardening effect. Because the interstitial carbon atoms cause some of the iron BCC lattice cells to distort, a high enough stress level must be applied in order for the dislocations to move. Low carbon is one of the most common steel and it is relatively cheap than most other steels. However, the strength is relatively lower, which can be seen in appendix. 2.1.2 Higher strength steel In order to reduce the weight of an automobile, it is absolutely essential to reduce the thickness of the sheet steel and compensate for loss of strength by using higher strength steel sheets. For inner panels, though a rather substantial amount of high strength steel is used, the percentage use is a little lower than in the outer panel due to stiffness limitation and insufficient formability. (9) However, the overall use of high strength steel is estimated to increase further more. The problems in press performance of high strength steel are wrinkles, surface deflection and springback, fracture especially in stretch flanging and galling on the forming tool. Until now, the average level of strength used widely is at most 400 MPa but in the near future the high strength steel with over 400 MPa may be used for the reduction of weight and in this case the forming difficulty will increase further more. (5) The thickness of a panel sheet decreases as a result of application of higher stre ngth steel. Many kinds of microstructural hardened high strength steel sheet are applied by automobile producers. Ø Dual phase steel Dual phase steel show lower yield strength compared with other types of steel having the same tensile strength because of mobile dislocations existing in the vicinity of the boundary of ferritic and martensitic phases. So presents low yield ratios. And thats why its elastic recovery after forming work is small and shape fixability is good. As it also shows larger elongation than precipitation hardened steel sheets and fatigue resistance. (3) Ø Trip steel sheet Transformation induced plasticity steel is also becoming an ideal material for car body panels. It has meta-stable austenite transformable into martensite contained up to 30% in bainite or ferrite and bainite matrix. Commercial Trip sheets have simple C-Si-Mn series chemical compositions. The simpler chemical compositions are made viable by stabilizing the austenite phase through distribution of alloy elements in the two phase region and concentration of carbon into austenite during bainite transformation. (4) 2.2 Aluminium-based alloy Pure aluminium cannot be applied to normal passenger car due to softness. Moreover, surface damages during stamping and handling are often subjected to subsequent surface hand finishing. This additional operation on the panel is usually inevitable. In contrast to pure aluminium, aluminium alloys contain solute additions which can markedly affect grain structures and particularly the microstructures within the grains. This in turn strongly influences the responses of alloys to working and heat treatment. Both crystal structure and microstructure influence mechanical properties. Slip is inhibited by grain boundaries, which are disordered regions, (and so small grains improve strength). Slip can also be made difficult by dispersing particles of another phase throughout the matrix. This indicates the typical hardening mechanism of aluminium. (9) There are some kinds of wrought aluminium alloys typically used for car body. 2.2.1 Aluminium Manganese Alloys 3xxx This series of alloys is non heat-treatable. The addition of approximately 1% manganese increases the strength by approximately 10 15% compared with 1200, without any major loss in ductility. This non-heat treatable alloy generally finds a wide application where greater strength is required without any major loss in corrosion. The addition of manganese to the chemical composition creates phases like (Mn,Fe)Al6 or (Mn,Fe)3SiAl12 that can be revealed by a solution of 10% of phosphoric acid. The grain structure obtained by work hardening or by annealing is usually revealed by anodisation. (8) 3103 is typically used for car body in the automobile industry. The composition of 3103 alluminium is 0.7% Fe, 1.5% Mn and some others. 2.2.2 Aluminium Magnesium Alloys 5xxx This series of alloys is non heat-treatable and exhibits the best combination of high strength with resistance to corrosion. This series also exhibits good weldability but when the Mg level exceed 3% there is a tendency for stress corrosion resistance to be reduced, dependent on the temper used and temperature of operation. (1) Magnesium is largely soluble in aluminum compared to the other elements, but the content in excess can appear as eutectic Mg2Al3. After cold rolling and annealing they can be found at the grain boundaries or after cold working they can precipitate on deformation bands. In both cases the structure can be revealed by an etching of 10% H3PO4. At the same time as Cr is a frequent additive in this series, Cr2Mg3Al18 may appear as a fine dispersoid. (8) 5182 can be used as car body panel. The composition of 5182 alluminium is 4.1% Mg, 0.4% Mn and some others. 2.2.3 Aluminium Magnesium Silicon Alloys 6xxx This group of heat-treatable alloys uses a combination of magnesium and silicon (magnesium Silicide) to render it heat-treatable. These alloys find their greatest strength, combined with good corrosion resistance, ease of formability and excellent ability to be anodised. This family takes the main advantages from the strengthening due to the precipitation of Mg2Si. So the etching will reveal the iron rich phases like Fe3SiAl12, Fe2Si2Al9 that are insoluble and the coarse precipitates or the excess soluble precipitates (0.5%HF). (8) Typical alloys 6009 in this group are used for car bodies. The composition of 6009 aluminium is Si 1.1%, Mg 0.6 %, Mn 0.4% and some others. 3 Study of competition between steel and Al Automobiles today are over 63% iron and steel by weight. (10) With rising energy and environmental concerns, as well as increases the performance of the car, vehicle light-weighting continues to be a prominent concern for vehicle manufacturers. At the present, more and more aluminium alloys are introduced to automobile industry because the aluminium alloys can normally meet the requirement but is only half weight of steel. However, both the traditional steel car and aluminium have their advantages or disadvantages on aspects of manufacturing, safety, repairability, cost, recyclability, and environmental protection. 3.1 Manufacturing Aluminium parts can be more complicated in their design because the high number of design solutions likes the castings available in nearly any shape. One casting can replace a complex part consisting of several steel panels. Consequently a reduction of parts up to 50% is feasible. (1) This again makes design, construction and production easier as fewer parts need to be dealt with in any stage of the design and manufacturing process. Aluminium car body has fewer parts lead to fewer tools and fixtures, which makes manufacturing easily and therefore saving working spaces and expenses. Because the sheets can tear easily, low elongation and yield limits of aluminium alloys make it difficult for stamping. This has to be taken into account when designing and building car bodies. Also a higher resilience of the sheets causes difficulties in keeping the tolerances during stamping for individual parts and therefore for the whole car body. (11) Furthermore, it is difficult to keep the body tolerances after welding processes since aluminium extrusions and cast sections behave unpredictably when subjected to uneven heat influence. The heat expansion of aluminium is higher than steel, so all fixtures need to be built more solidly and stable to cope with the higher forces. Extensive pickle treatment is necessary to create a weldable surface for aluminium car body. Also the finish of the surface for the paint shop is costly and requires a lot of time and knowledge since the sheets tend to get scratched more easily than equivalent steel panels and the surface of the sheets is liable to form waves. (12) The 6xxx series of aluminium alloys which has been used a lot for the car body requires heat treatment to achieve the demanded strength. The drying process in the paint shop is not sufficient as the conventional temperatures are not high enough. Hence, an additional heat treatment line needs to be installed to heat the car bodies up to 210Â °C for 30 min to harden the aluminium alloys. (13) This cannot be done in advance of manufacturing as it would influence the welding processes negatively. When using aluminium alloy as car body material, contact corrosion plays a much more crucial role as steel accelerates the corrosion of aluminium than using steel body. So that screws or other parts made of steel need to be coated. Otherwise holes in the car body are unavoidable when exposed to moisture. (7) 3.2 Repairability and safety aspects Nowadays, Crash tests have aroused the publics attention since occupant safety is a feature that is receiving considerable public attention. Automobile companies even promote car safety as a leading aspect in their advertising campaigns. Additionally, insurance companies set great store by repairability of cars as they cause a significant part of their costs. In some countries the expenditure per car for repairing certain types of damage is assessed and taken into account when the car is being classified for insurance. (15) In approximately 5% of all accidents the frame structure of a car is damaged. (2) This can be crucial if casting parts or extrusions are concerned as they cannot be reformed properly. They need to be replaced in sections or as a whole dependent on the severity of the accident. Cast aluminium sections especially are liable to develop cracks and consequently need to be examined carefully. Additionally, a completely different approach to repairing damage forces dealers to train their mechanics in the appropriate techniques. In particular aluminium shielded arc welding requires accuracy, practice and the appropriate equipment but not steel. This becomes a problem especially for small dealers as they cannot afford the necessary equipment or staff. (12) Also, tools must not be mixed up with steel tools to avoid corrosion caused by steel particles in the aluminium panels. A separate set of tools for aluminium is mandatory to fully avoid these effects. (14) However, the properties of aluminium offer several advantages to steel. Tubular aluminium sections crumple in the ideal way when subjected to impacts. They develop a crumple pattern that can absorb more energy than equivalent steel elements. Consequently with half the weight of steel an aluminium structural member provides the same safety. (15) 3.3 Cost It is obvious that aluminium is more expensive to manufacture than steel. The costs of a sophisticated aluminium car body are many times larger than of an ordinary steel body. This can be especially crucial when being applied to small cars as the margin there is lower than at luxury cars. Higher material costs, a more sophisticated handling of aluminium parts in comparison to steel and some alloys need heat treatment to achieve the required strength, are the main drawbacks. (9) However, the use of aluminium causes lower investments for tooling due to the fact that stamped steel parts are replaced by extrusions which cause costs only a fraction of the costs required to manufacture stamping tools. This is especially interesting for low volume series as the tooling costs here have a relatively high influence on the unit costs. Additionally, punch riveting and clinching consume less energy than spot welding and will cause lower energy costs. But the development of high volume technology for welding, riveting and bonding is a crucial issue that has kept car manufacturers from producing all-aluminium car bodies as it is accompanied by high initial investment for research, development and design. (15) 3.4 Recyclability Recycling is likely to become more important in the future as governments force industry to design fully recyclable products just as is an increasing customer awareness in terms of environmental protection and hence a growing demand for eco-friendly products. To preserve the quality of the recycled material the different alloys must not be mixed up. This is especially crucial for the production of extrusions and sheets out of recycling aluminium alloys as they have lower tolerance levels of impurities than steel. Additionally, they can only be recovered if they are not mixed with cast parts. (6) Therefore, joined aluminium alloys panels with different alloys cause problems. Also panels that are joined with steel parts like rivets make recycling problematic since steel parts need to be removed to keep the number of foreign substances low. (6) This becomes more difficult as aluminium cannot be magnetically separated from other wastes. In order to recycle aluminium only a fraction of the original energy consumption is needed, even less than for recycling steel. 3.5 Environmental protection The environmental issues of different materials can be assessed by a comparison of the energy household of an aluminium and steel-made car during production and over their whole lives. Only having regard to all processes that cause energy consumption during production and operating life can an accurate result be given of the eco-friendliness of a car. It includes material cycles and the amounts of energy needed to produce and maintain a car during operating life time, including fuel. (15) If primary material is used, aluminium starts with a drawback of an additional energy consumption during production. Compared with steel, far higher amounts of energy are needed to produce lightweight metals like aluminium. For illustration, a car could achieve a weight reduction of 20 kg by the intensive use of aluminium alloys body other than the steel one. The additional energy consumed could be compensated after 3500 miles. After having covered this distance, the energy comparison works in favour of aluminium. A further comparison can be made in terms of carbon dioxide emissions. If primary aluminium is used it takes 60000 miles until the lighter aluminium auto has compensated the higher CO2 emission during production. However, when the proportion of recycled, secondary aluminium exceeds 75% the CO2 emission household is positive for aluminium from the first instance. (1) 4 Summary Considering the energy and environmental issues, using light weight metal for car bodies will be the trends in the near future. However, the traditional steel products still have the advantage of price and easy for manufacturing. Apart from luxuries cars already using light metal bodies, steel car bodies still take a large part of auto body market for it cheaper price and relatively better mechanical properties.

Uncertified Teachers in Prince George’s County Schools :: essays papers

Uncertified Teachers in Prince George’s County Schools Prince George’s County has been the largest school district in Maryland for the past more than twenty years. However, as a result of under funding, compared to other Maryland public school districts, Prince George’s County sustains the second highest percentage of uncertified teachers in the state. The lack of certified teachers has left lasting negative effects on the Prince George’s county school system. This problem goes much deeper than Prince George’s County, uncertified teacher are being allowed into the classroom all over the country and have been for the last couple of decades, mainly due to teacher shortages. By definition "a qualified teacher is expected to have a broad background of general education as well as professional preparation."(Teacher) it has never been considered satisfactory for a student to complete on 60% of material taught, why should it be different for teachers? In the early 1980s during a teacher shortage graduates of teacher education programs had lower levels of academic achievement than most college graduates and were still allowed to teach. In 1991-92, 16,000 teachers nationwide were uncertified. Currently, 37 of 39 states employ waivers, which allow failing teachers into classrooms. Past attempts at solutions were Teachers for America, Experimental Certification of Ethnic Colleagues for Elementary Schools, provisional certification, and emergency certification. Teachers for America is a very easy, "six week crash course in teacher survival skills taught primarily by teachers from their troubled placement sites."(Roth, 220) These teachers are said to bring "enthusiasm and intellect" to the classroom. In inner city and urban school systems, where most of the student body is poor and in the greatest need of good teachers, the TFA teachers are installed. While TFA is a good idea and puts teachers in classrooms, some say that the children who are being used as guinea pigs for this experimental teacher training are suffering. However, after receiving praise from some major cities, its training program was approved in 1995 and it "received $2 million from AmeriCorps, President Clinton’s national service initiative."(Mosle, 3) Experimental Certification of Ethnic Colleagues for Elementary Schools (E3) was an effort to "increase the representation of males and people of color on teaching staffs of elementary schools,"(Shade, 261) in response to teacher shortages. This solution was implemented for three years and was very successful. Provisional certification is given to a person who has been certified in another state and has passed the Praxis II, "but who needs one or two courses Maryland requires for teachers.

Sony Corporation :: GCSE Business Marketing Coursework

Sony Corporation History: In January of 1958, the already well-known and successful Japanese electronics company, Totsuko, adopted â€Å"Sony† as it’s new corporate name. This new name, â€Å"Sony†, was an original brand name that was originally applied on Totsuko products. Even though Sony is well known for being a leader in audio-visual electronics and information technology for consumers at home, they also have reached out to larger businesses worldwide. In 1978 they formed Sony Broadcast Ltd., which focused on providing broadcast stations the best, quality products and services. This branch of the Sony Corporation is still very successful today. Sony has gone on to form a chemical corporation as well, which can provide physicians, doctors, and researchers with certain measuring and necessary tools. Product Mix: Sony Corporation’s product mix is comprised of many different products targeted towards many different market segments. Almost every Sony product though can be placed under the category of â€Å"electronics†. They sell products and services globally such as televisions, VCR’s, stereos, computers, memory devices, video game systems, digital and non-digital cameras and camcorders, Lithium batteries, fingerprint ID units, certain measuring equipment, and even shatter proof film for glass through their chemical corporation. Workforce: The workforce of the Sony Corporation is very large. For the fiscal year that ended on March 31, 2001, it was estimated that 181,800 total people were employed for the Sony Corporation. Of this total, 23,000 employees are currently working in U.S. plants and offices. There are major research and development and engineering facilities in the U.S. located in California, New York, and Colorado with manufacturing facilities being located in the same locations in addition to Alabama, New Jersey, Texas, Oregon, and Indiana. Future Outlook: Today Sony is a leading music company, motion picture company, television production company, manufacturer of game consoles, and inventor of many new professional products such as VAIO personal computers.

Similarities Between Franz Liszt And Kurt Cobain :: essays research papers fc

Similarities Between Franz Liszt and Kurt Cobain Franz Liszt was one of many classical composers. In some ways, he can be compared to a modern rock and roll star. Franz Liszt was born in Raiding, Hungary, on October 22, 1811. Much like Mozart, he was a very great piano player at a very young age. Liszt composed an opera called Don Sancho at the age of fourteen. Professionals of Liszt's time thought that he was only a genius with the piano, which was not enough to give his ideas the great recognition they deserved. Many people thought that Liszt was â€Å"a mover and a shaker, a rebel, chased women, and had much talent and personality." He had invented the solo recital. When Liszt had a concert, he usually played his own music and came out wearing decorations hanging on chains, which was unusual for his time. For two years Liszt was hospitalized for a nervous breakdown. In some ways he was much like Kurt Cobain, the late lead singer of the rock band Nirvana. Kurt Cobain was born on February 20, 1967, in Aberdeen, Washington. He was passed on to several relatives after his parents divorced when he was eight years old. For some time he even lived under a bridge and was hospitalized for a heroin addiction. It was not entirely unexpected that Cobain committed suicide. He had had entered a coma by overdosing on a mixture of champagne and tranquilizers on March 4. Also, Kurt's family history showed that two of his father's uncles committed suicide, along with the fact that there were a lot of dysfunctional marriages and alcoholism present. During a concert, Kurt would jerk around as if he was being electrocuted. After his death, the sale of Nirvana memorabilia increased dramatically. As you can see, both Franz Liszt and Kurt Cobain have some characteristics in common. They had both been hospitalized for an illness. However, one was physical while the other was mental. Both had unusual concert styles. Like many classical composers, Kurt was not truly appreciated until his

Is Coalition Government Here to Stay?

Context In many democratic countries, such as Germany, France, India, Israel and Italy, government by a coalition of political parties is considered normal. Often in such countries there are many political parties with a significant level of popular support in elections. This means no one party usually can gain more than 30% of the seats in the parliament or national assembly, so it is necessary for several parties to come together to form a viable government, generally under the premiership of the leader of the largest party involved. In other states, such as the UK, USA and Japan, there are fewer significant political parties and coalitions are rare, as after an election a winning party is able to form an effective government without any help from others. This debate is closely related to issues of voting reform, as countries with some form of proportional representation tend to have more political parties in parliament than those that use a first-past-the-post system, and so are more likely to have coalition governments. Arguments Pros Cons Coalition government is more democratic, and hence fairer, because it represents a much broader spectrum of public opinion than government by one party alone. In almost all coalitions, a majority of citizens voted for the parties which form the government and so their views and interests are represented in political decision-making. Coalition government is actually less democratic as the balance of power is inevitably held by the small parties who can barter their support for concessions from the main groups within the coalition. This means that a party with little popular support is able to impose its policies upon the majority by a process of political blackmail. Possible examples of this might include the role of religious parties in Israel, the Greens in Germany and France, and the demand of constitutional reforms by the Lib Dems in the UK as their price of coalition support in a future hung parliament. Democracy may be further undermined if the process of coalition-making is subject to the whim of a monarch or president, able to decide who to ask to attempt to form a government, whether to call new elections, etc. Coalition government creates a more honest and dynamic political system, allowing voters a clearer choice at election time. In countries where coalition government is very rare, such as the UK or USA, the main parties straddle a wide spectrum of opinion and can be seen as coalitions of competing interest groups and ideologies. At elections, however, such parties present themselves, perhaps fraudulently, to voters as united behind particular views and policies, whereas in power their internal divisions may have a serious, and often unseen, impact upon decision-making. In countries with coalition governments the greater number of political parties gives the voter a more honest choice and brings differences of opinion out into the open for debate. It is also easier for parties to split, or new ones to be formed, as new political issues divide opinion, because new parties still have a chance of a share in political power. Coalition government is less transparent. Because a party has no real chance of forming a government alone, the manifestos they present to the public become irrelevant and often wildly unrealistic. Real decisions about political programmes are made after the election, in a process of secretive back-room negotiation from which the public is excluded. This undermines accountability, as voters cannot expect individual parties in a coalition to deliver upon their particular manifesto promises, unlike the single-party governments in the USA and UK. Accountability is also absent when a coalition government falls, either after an election or through the defection of some of its supporters. Any new administration will tend to include most of the parties and politicians from the previous government, with just a little shuffling of coalition partners and ministerial jobs. Coalitions provide good government because their decisions are made in the interests of a majority of the people. Because a wide consensus of opinion is involved, any policy will be debated thoroughly within the government before it is implemented. Single-party government is much more likely to impose badly thought-out policies upon parliament and people, perhaps for narrowly ideological reasons (for example, the poll tax in the UK). When difficult or historic decisions have to be taken, for example in wartime, or over an issue such as membership of the European Union or NATO, the consent of politicians representing a wide range of interests and opinion is important in committing the country and its people to difficult but necessary courses of action. Coalitions provide bad government because they are unable to take a long-term view. Sometimes an ideological compass is necessary for governments to navigate in difficult political and economic waters, and coalitions lack such a unifying philosophy. In addition planning for the long-term often requires decisions to be made that are unpopular in the short-term. Coalitions often fail such tests because temporary unpopularity may encourage one of the parties involved to defect, in search of a populist advantage. It might be agreed that sometimes exceptional circumstances, such as war, require a coalition government (although the USA did not have one in either World War). This does not mean that such governments are better in normal conditions. Major constitutional decisions are better dealt with through referenda. Coalition government provides more continuity in administration. In countries without a tradition of coalition governments, parties can remain in government or opposition for long periods, and an adversarial political culture develops. When a change does occur, the members of the new administration seldom have any experience of government to draw upon, and often embark upon a wholesale reversal of the previous regime’s policies; neither of these things is in the public interest. In states with coalition politics, however, there are usually at least some ministers with considerable experience under the previous government. A more consensual style of politics also allows for a more gradual and constructive shift of policy between administrations. Coalition governments are very unstable, often collapsing and reforming at frequent intervals – Italy, for example, averages more than one government per year since 1945. This greatly restricts the ability of governments to deal with major reforms and means that politicians seldom stay in any particular ministerial post for long enough to get to grips with its demands. At the same time, this squabbling between political parties erodes the confidence of the public in their political system and in their elected representatives. Finally, evern forming coalitions can take so long that a country may drift along for months with caretaker governments that lack authority – both the Czech Republic and Belgium took over six months to negotiate new governing coalitions after their last elections.

Daily Lives Essay

WW1 had just ended and the soldiers who were fighting were returning home. When the men returned home they found things were much different than when they had left, women were working. Transitioning was very difficult for the men because they were used to the women cleaning and cooking, not getting ready for work. It was very hard for a husband and wife to both get ready for work in the morning but with all the new inventions such as the hairdryer and the electric razor it made getting ready for work much faster and easier. Before the 1920s, women had to blow-dry their hair by inserting a flexible pipe in the exhaust of a vacuum cleaner. In 1920, the first hair dryer was invented. Women were so excited even though the machine was not quit designed well, and got overheated easily, it was still better than using a vacuum cleaner! For the men the first electric razor was a revolutionary invention. As one could shave quickly without using soap, or water, electric razors grew in demand qu ickly. For breakfast they could simply put a piece of bread into the pop up toaster. It was a quick easy meal to eat before work. After a long day at work the family can come home and sit in their recliners and quickly eat a frozen food dinner so they would be on time for their favorite radio station, KDKA on the radio together. After eating breakfast, they would get in their car and drive to work. By late 1920s, the automobile had confidently proven itself as the newest and most popular means of road transportation. The invention of the automobile made it much easier and quicker to drive to work, rather than walking or driving a buggy. Because of the invention of the automobile it made it conceivable to live a further distance from work, making the option of different career choices available, and possibly better jobs. The invention of the car radio was very enjoyable while on their way to work and once again they could listen to KDKA on the radio. The traffic signal was very helpful and after they were invented and put into use there was a decrease in the number of accidents that frequently occurred because of  missed communications between drivers. Working conditions in the early part of the 20th century were dirty, crowded, and dangerous. Factory jobs were booming, and more families were moving to the cities to find opportunities. The reason the factory jobs were going so quickly was because of the need for assembly line workers. People could also work in construction companies and now were able to use the huge shovel called the bull dozer instead of using the shovel manually. This was a big time saver for the construction companies. Also the Radial Arm Saw was invented and was used for cutting long pieces of lumber and could also be used in construction. The men were able to do their work in more than half the time. Plus with both of this invention it helped alleviate people having as much back pain. The jobs of detectives became more efficient because of the invention of the lie detector. The device measured the heartbeats and breathing rate of a person in order to check whether the person was lying. With the invention of the Audiometer it made the results of a hearing test more efficient and made it easier doctors to evaluate hearing loss. In the 1920s when 3-D movies were coming out and the radio had just been invented people were happy as their social life was booming. People were using instant cameras, and loud speakers were being used at sporting events. One of the most exciting inventions for people was when they went to a carnival they could have the thrill of their life by riding the famous Tilt -a – Whirl for the first time. It changed their life in several ways such as making thing faster and easier and more efficient, and way more exciting. Technology has changed a lot since t he 1920’s and continues to change daily. I hope the United States continues to have entrepreneurs who never give up trying to make new technology that can better the world and help those who live in it. http://www.ask.com/question/transportation-in-the-1920s