Atomic Theory Essays (1207 words) - Atomic Physics, Atoms

Atomic Theory In ancient Greek the word atom meant the smallest indivisible particle that could be conceived. The atom was thought of as indestructible; in fact, the Greek word for atom means not divisible. Knowledge about the size and make up of the atom grew very slowly as scientific theory progressed. What we know/theorize about the atom now began with a core theory devised by Democrotus, a Greek philosopher who proposed that matter consisted of various types of tiny discrete particles and that the properties of matter were determined by the properties of these particles. This core theory was then modified and altered over years by Dalton, Thompson, Rutherford, Bhor, and Chadwick. The atoms original structure was simple, but as more and more research was done the atom became more complex and puzzling. Our first benefactor of atomic theory was John Dalton, a man later nick-named the Father of atomic theory for his contribution of many theories and laws to modern atomic theory. His theories answered many questions of skeptical scientists: elements combine with one another to form chemical compounds and the atom doesn't change, atoms link together in definite proportions, all atoms of any element are all the same, the law of multiple proportions which states that a given mass of one element can combine with various masses of another element (or elements) but always in small whole number ratios, and the law of conservation of matter, matter can neither be created or destroyed, but it can change form. One of the next most recognized people involved in the progression of atomic theory was J.J. Thompson. Thompson had researched the work of William Crookes whose research concluded that cathode rays were deflected by magnetic fields. Thompson elaborated on this conclusion and found that cathode rays were also deflected by an electric field. With much experimentation Thompson theorized that although the atom was made up of small particles it was not the same indestructible model proposed by Dalton. A man named Milikin determined the mass of an electron to be 0 amu and the relative charge to be negative 1. With the discovery of these electrons by Thompson and the discovery of protons several years later Thompson was able to devise a new model of the atom. Thompson stated that protons and electrons were evenly distributed throughout the atom. This model was labeled the plum-pudding model. Thompson described the atom as a gooey mass of positively charged particles (protons) with raisins ( electrons) embedded all around it. Ernest Rutherford was a major contributor to the atomic model because he proved that although Dalton and Thompson were partially correct there was still a flaw in both of their models of the atom. Rutherford devised an experiment to either prove or disprove Dalton's model and or Thompson's model. Rutherford and his assistants put a piece of radioactive material in a lead box with a small hole in one side to direct the alpha particles towards the gold foil, which was surrounded by zinc sulfide screens. The zinc screens showed flashes of light where the alpha particles were going to go, straight through (Thompson's model) or straight back (Dalton's model). To his astonishment particles were through, came back, and some also were deflected to the sides of the gold foil. He proved that Dalton and Thompson were incorrect and the atom consisted mostly of space. At the center of this space is a very small core, called the nucleus, which can justify the deflected particles. Rutherford establ ished that the mass of the atom is concentrated in its nucleus. He found that an electron is 1/1836 the mass of a proton and he also proposed that electrons travel in orbits around the nucleus. With all of these alterations to the theory of an atom a few, five to be exact, problems arose. One of the major problems was the size of an atom. If each electron had its own orbital and the atom had 23 electrons then the atom would be enormous. Another problem with the orbital of an electron was that no energy could be observed by the electron orbit decay. Next, if the center of an atom was composed of protons (+) and the electrons (-) orbited this

ADHD essays

ADD/ADHD essays Attention Deficit Hyperactivity Disorder is a medical condition, caused by genetic factors that result in certain neurological differences" (The ADHD Information Library). It affects younger people 5% is a solid number supported by research. Even at 5% each classroom in America will have one or 2 ADHD kids in the class (ADHD Kids), or it can affect older people and makes life hard for these people to concentrate on even the simplest things. There are medications out there to help these people, along with different types of therapy. Even with the medication and therapy ADD/ADHD makes life very difficult for these people. People with ADD suffer from overload; they have a heightened awareness of incoming environmental stimuli. Their world tends to be too bright, too loud, too abrasive and too rapidly changing for comfort. (ADHD Kids). This means ADD/ADHD makes it hard to ignore things making them easily distracted by the smallest things. They often suffer from Making careless mistakes in schoolwork, difficulty sustaining attention to tasks, not listening to what is being said, difficulty organizing tasks and activities, losing and misplacing belongings, fidgeting and squirming while seated, talking excessively, interrupting or intruding on others, and difficulty playing quietly. There are many other complications that ADD/ADHD causes for people, such as disorientation to time and space is often a problem. For instance, they may have to stop and think which hand is their right or left. They may have difficulty following a set of instructions or reading a map. ADD people tend to be disorganized. Th ey have trouble making and carrying out plans. Many ADD people are hyperactive (ADHD Kids). As stated before more people than you may realize are affected by this disorder. Attention Deficit Disorder (ADD) or Attention Deficit Hyperactivity Disorder (add-adhd, ADHD, AD/HD) is being diagnosed with i...

Basic Rhetorical Analysis (Technical Communication) Essay

Basic Rhetorical Analysis (Technical Communication) - Essay Example It is designed to provide as information to companies or employees who are creating a protection office first-aid system. While it cannot particularly indicate the objectives and lifestyle of a particular market or companies, it shows the overall goal of defending the safe practice of employees and the surroundings both through the Work-related Protection and Wellness Management (OSHA) as well as common market. The information is created through OSHA but was designed collaboratively through similar companies such as the Nationwide Protection Authorities or the United States Nationwide Requirements Institution to get to know the needs for system growth, etc. Lastly, the OSHA information uses appropriate design to increase legibility yet includes few graphics/ style due to the level of the content where it provides totally to help the visitors fix problems. HELPS THE TARGETED READERS WITH THEIR PROBLEMS: OSHA's details are ideal for United States companies looking to apply a first-aid system for their business. The details identify its viewers in the preface to the headline page and in the Release and Purpose area. The details do a very good job of dealing with the features of an office first-aid program to visitors who have the power within their company to apply and handle such a program: the companies. For example, the Release declares the components of an office first-aid program such as evaluating threats, developing and applying a first-aid system, training workers on factors of the system, and system assessment and servicing. A company may use these details to fix various situational issues. The details might be used to ensure office conformity with the government OSHA Act of 1970. This might mean beginning a first-aid program from the beginning or reassessing the framework of a present system. A company might turn to the guide in reaction to a threat or damage, or to be ready and ready with the resources for avoidance. Perhaps a company is under lawful st ress to enhance the organization's system. Alternatively, an employer might want to enhance the organization's first-aid system as a motivation to hire and maintain employees. This detail is ready with extensive details companies need to fix any of these issues. For example, the details provide sources to types, reviews, and places of nationwide information to help an employer evaluate chance of office threat or damage. It goes on to recommend acquiring reviews of EMS, fire and save reaction times to plan a first-aid system designed to the office atmosphere. The guide also provides described details on other OSHA services along with URLs and contact information. Including these components allows the company explains his/her knowing by offering more detail on a topic. Some subjects, however, seem to try to protect too much details, making the content wide and unexplained. The Components of a First Aid System subject gives long details of bulleted factors. These factors cover a wide v ariety of information, but could keep people feeling confused about including every idea into his/her organization's first aid program. REFLECTION OF OSHA’S CULTURE AND AIMS The purpose of the details is to suggest Mixed declares organizations on ways to create and sustain a proper and balanced and safe workplace. OSHA's business purpose is

An essay Example | Topics and Well Written Essays - 500 words - 1

An - Essay Example The argument of associating some people with one thing and others with a different thing is not pro-music. This article highlights an individual’s strive to achieve something that many people could only dream of back in the history addressed in the article. The move to engage in rock even when expected not to breaks the usual and points out to the possibility of achieving something unusual. From a neutral point of view, however, black or white does not make bad or good. The most important factor to consider is the interest, drive, and motive behind that music genre. What this means is that both black and white people cannot do whatever and be whomever they want by putting the racial factor aside. The result would be a harmonized society where the dreams, interests, talents, and goals of an individual overrule one’s racial or cultural background. The author makes a significant statement in the article, which notes, â€Å"Listening to rock felt like sneaking past guards of racial barriers† (Douglas, 2013). In light of this statement, it is evident that race, culture, and music are critically intertwined. The statement implies that rock music is not a black people’s thing. The truth of the matter, however, is that music and music genres have no racial boundaries. The misconception therein follows social events that sought to define who does what and why. Such misconceptions and stereotypes only stand to derail musical progress among racial differentials. Music is an art without boundaries. In other words, it should be defined in words that go beyond racial concerns. The white or black factor should not feature anywhere as far as rock is concerned. In light of this article, there is notable difference between the time referred to in the article and today. Back then, racial profiling and potential segregation were evident. Today, however, majority of people have become

The role of feminist art in 20 century Essay Example | Topics and Well Written Essays - 1500 words

The role of feminist art in 20 century - Essay Example In 1970s the social orientation of the art-process both from the point of view of the content (themes raised by artists in the works of their creativity), and the structure has noticeably amplified. The most appreciable phenomenon of the middle of 1970s has become feminism in art. So let us consider the role of feminism in the art of the twentieth century. Feminism is a social-political movement, which purpose is granting to women all variety of the civil rights. In a broad sense it is an aspiration to equality of women with men in all spheres of a society's life. In narrow sense feminism is a women's movement, which purpose is elimination of discrimination of women and their equation in the rights with men. Feminism has arisen in the eighteenth century, but it became especially active since the end of 1960s. Especially since the late 1960s, when the feminist art movement can be said to have emerged, women have been particularly interested in what makes them different from males - what makes women artists and their art different from male artists and their art. This has been most prominent in the United States, Britain, and Germany, although there are numerous precursors to the movement, and it has spread to many other cultures since the 1970s1. The role of a woman art began to be discussed approximately since the first quarter of the nineteenth century, but the most intensive discussion concerns to the end of the nineteenth - to the beginning of the twentieth century. Both in those years and later even just the right to existence of this issue, not speaking about using concepts "female literature", "female creativity", "female history " etc. had been often called into a question, had been laughed at and denied. The main thing and they believe weighty and incontestable argument of opponents of using these definitions is the thesis: the art can be only good or bad, and no other aspects of consideration and the analysis can be. And especially the art cannot be male or female; it cannot be divided according to a sexual attribute. The first comprehensive, historical exhibition to examine the international foundations and legacy of feminist art, WACK! Art and the Feminist Revolution focuses on the crucial period 1965-1980, during which the majority of feminist activism and art-making occurred internationally. The exhibition includes the work of 120 artists from the United States, Central and Eastern Europe, Latin America, Asia, Canada, Australia, and New Zealand. Comprising work in a broad range of media-including painting, sculpture, photography, film, video, and performance art-the exhibition is organized around themes based on media, geography, formal concerns, collective aesthetic, and political impulses2. In the art of feminist-women there is a destruction of an image of the woman as a gentle, fine, full of love and giving a life essence. Aggression and sexuality of these characters with which the author is inevitably identified, causes a shock. Not a fine woman, captivating with her nakedness, but some fury appears in the form of a picture, a photo, installation, a model. It frightens a man, as a viewer by definition is a man. For him she creates. Eros of these Venus does not give a birth of a new life. Not dedication,

The Effects of International Business Strategy in emerging Markets

The Effects of International Business Strategy in emerging Markets The increase in the continuous growth of the emerging markets, in particular the four major countries Brazil, China, India, and Russia, are the largest emerging markets (LEMs) which face challenges and offers immense opportunities to the international business growth however in the recent times it has shown an increasingly fierce competitiveness internationally of these economies now pose a challenge for the economies of the world. The challenges are evident in the form of increase in the commodity prices, rising food cost, growing outward investment and acquisition the largest emerging markets firms, with its direct impact on insecurity in jobs and growing inequality of income in developed and developing nations hence creating a need for restructuring the international institutions to reflect the shifting balance of economic power in the world economy. The growing recession in the west and the reliance on selective protectionism on a rise are impacting the prospects of the emerging economies of the world. Theoretical aspect This is research aims at formulating the scope of the international strategy by analysing the current situation of the economys and the theories applied by different theorist on the emerging nation in the past taking into consideration the degree of their effectiveness into account and postulating new perspective and dimension to it. The analysis of the early phase of the market emergence, Institutional theory helps in comprehending the impact on the enterprise strategies this is due to the strong influence of the government in the emerging economys to that of developed economies . the role of institutional theory is reviewed in context to the other theories and their interactions in understanding the the emerged and the developed market economies. Institutional theory This theory emphasizes on the influence of surrounding system organisation that shapes the social and organisational behaviour(scott 1995). The important role of an institution in a economy is to reduce information and transaction cost by building a a stable structure to facilitate interaction bye reducing uncertainty .Suhomlinova (1999) found that government institutions influence had a negative impact on Russian enter-prise reform, Lau (1998) suggested that political and market pressures were the institutional constraints faced by chief execu-tives in Chinese enterprise hence this theory would help in assessing the social barrier and interference pattern in the emerging market economy. Transaction cost in emerging economies Transaction cost economics studies the firm-environment interface through a contractual or ex-change-based approach (Williamson, 1975). This aspect plays an integral part as the rational governance choice requires a trade-off, at the margin, between the transaction costs associated with the market mode, a firms need for control, and the governance costs of hierarchy which in most of the emerging economies is high hence Choi, Lee, and Kim (1999) hypothesized that measurement and enforcement are two critically important transaction costs in emerging economies. In a country where the price system does not accurately provide signals for efficient resource allocation, measurement costs should be high. Similarly, in a country where official discretion rather than the rule of law defines property rights, enforcement costs will be high (La Porta, Lopez-de-Silanes, Shlei-fer, Vishny, 1997). This aspect has a important role to play in the emerging economies for international business. Resource based perspective The resource based view has argued on a primary concern, why do firms differ and how they achieve and sustain competitive advantage. Penrose (1959) argued that heterogeneous capabilities give each firm its unique character and are the essence of competitive advantage. This is another dimension for the research as to how do we strategize and enter the makets of these emerging economies Empirical analysis Research on strategy in this field of emerging economies is difficult on several grounds as the theory postulated for the developed economies may not apply for the emerging economies, with the empirical hence researchers do find it difficulty in data collection sampling measuring the variable for example the firms performance with the variety of variable changing. The combination of quantitative and qualitative method is the most reliable and relevant method of data collection and analysis. Sampling and data collection Sampling approach has to be innovative pertaining to the changing economies for example the general data source like telephone directory could become outdated rapidly. The data which may be generally collected from a company may not necessarily be consistent witht he data possessed by the government authority hence there requires a collaboration of different studies to analyse and find the right method for data collection as questionnaire, surveys are dependent on the postal service. Collaborative projects with local researchers using face-to-face interviews may be a key means of gaining access to data sources (Lee Miller, 1999). Henderson and Cock-burn (1994) used quantitative questionnaires, qual-itative interviews, and multiple informants to increase the validity and reliability of their measures of organizational competence, variable measurement do pose a number of problems that present a difficulty in strategy research in emerging economies. Mixed methodology In assessing the empirical aspect relating to the research of the growth and the different attributes to international business in emerging countries, the approach to it has to be on broader perspective hence it requires a collaboration of quantitative which primarily deals with the numeric data collection converting it into statistical form and then evaluating it to derive result and the qualitative measure of analysis which aims at understanding the meaning exploring it further by means of case study , questionnaire surveys to and then analyse the response, both method in proper coordination would provide the insight in understanding the complexity of the emerging market and the factor effecting international business. Conclusion The areas of research is focussed to the (BRIC) nations Brazil Russia India China with downfall of the economy which is at the brinks of pulling itself out of recession the key to overcome lies with this countries hence the objective of the research is to evaluate the current aspects of International business strategy applied to these emerging economies.

Benito Mussiolini :: essays research papers

Benito Mussolini, the Fascist dictator of Italy from 1922 to 1943. He centralized all power in himself as the leader of the Fascist party and attempted to create an Italian empire, ultimately in alliance with Germany. The defeat of Italian arms in World War 2 brought an end to his imperial dream and led to his downfall.   Ã‚  Ã‚  Ã‚  Ã‚  Benito had a miserable young life who then made his future adult life positive. He had hoped that WWI would lead to a collapse of society that would bring him to power. He knew that he needed to gain the Italians support and he introduced fascism. To the Italians it was a symbol of order and strength. It was a great number of people together, which was stronger then what it was in the previous years. He was also, to the Italians, the leader who would get them out of the Depression. Mussolini knew how to make the voting class forget about the strength they had. He also threatened to make Italy ungovernable through violence unless he was promoted the Prime Minister. Mussolini made Italy a strong fascist state that stood behind him. He knew how to use propaganda, he knew how to use the media to promote fascism and himself. Like Hitler, he used propaganda to gradually build himself up as a legend who was always right and could solve all of Italy’s problems. He took control of everything from who wrote in newspapers to what children learned in school. Mussolini made Italy dependent on him, like Hitler did with Germany. Anyone who didn't feel this way about him was killed. He had strong aggressive nationalism and made it a must have to be a good fascist.