Neo-Realism vs Neo-Liberalism

Kayla Ferry Political Science 150 Dr. Byron October 5, 2010 1) Neo-realism, also known as structural realism see international politics as a power struggle between states. Conflicts between states and security competition are due to a lack of â€Å"an overarching authority above states and the relative distribution of power in the international system† (Dunne 98). Scholar Kenneth Waltz defined the structure of the international system in three elements: organizing principle, differentiation of units, and distribution of capabilities.To structural realists the distribution of capabilities gives important insight to grasping international outcomes, and the relative distribution of power in the international system is the strategic variable to understanding such outcomes. Structural realists argue that the number of great powers that exists concludes the structure of the international system. Waltz describes the structure as the â€Å"ordering principle of the international syst em, which is anarchy and the distribution capabilities across units, which are states† (Dunne 127).Neo-realists also believe the structure of the international system shapes all foreign policy choices and see power as the collective competences of the states. In other words the more power a state has in the international system the more influence they have on world affairs. However the flaw that accompanies neo-realism, is the increase of the application of â€Å"self-help†, a. k. a. increase of military security. Neo-liberalist agrees largely with the views and beliefs of neo-realists, â€Å"the anarchic international structure, the centrality of states, and a rationalist approach to social scientific inquiry† (Dunne 115).The main difference between the two theories is neo-liberalist believe that anarchy does not mean the arrangements of cooperation are impossible. International regimes are the implementer for cooperation. Arguments made by neo-liberalists belie ve that academic inquiry is guided by a commitment to a scientific approach to theory building. In other words, personal beliefs and views cannot alter hypothesis made towards international politics. A separation of fact and values is the only way to insure an accurate theory. According the neo-liberalist, â€Å"the post-1945 orld order has been successful and durable because US hegemony has been of a liberal character† (Dunne 117). The downside of the hegemonic power is it has produced unequal gains for the West and the rest of the world. It is unresponsive to the needs of weaker states and people, which is seen with how the hegemonic power flexes its authority by the controlling of institutions, markets and resources. In contemporary international system, the application of the neo-liberal theory is apparent throughout foreign policy.Even in President Bush’s speech on the after math of 9/11. 2) Although neo-realism and neo-liberalism theories both agree that the inte rnational system is anarchic, they differ on all other accounts. Neo-realists believe that anarchy puts more constraints on foreign policy. Neo-realists also argue that neo-liberals overlook the importance of relative gains, and the most important goal of states in cooperation with each other is to prevent others from gaining more.With neo-realism, advocates believe that in the international system, anarchy forces states to be more concerned with relative power, security and survival. According to neo-realists, capabilities of states are a necessity for the security and independence of a state, and by not knowing another states intentions or interests forces other states to focus on their capabilities. In regards to institutions and regimes, neo-liberals â€Å"claim that they facilitate cooperation, and neo-realists say that they do not mitigate the constraining effects of anarchy on cooperation† (Dunne 133).The neo-neo debate goes back and forth and many other topics, only b ecause they study different worlds of international politics. Globalization has raised even more concerns for neo-realists, largely because they are more cautious about cooperation and see the world and its politics as very competitive. It is clear, in my opinion that neo-liberalism is by far the better theory. It allows the more powerful states to boost their economy, increase a state’s gains and gives states more influence on foreign policy. 3) Marxism gives a different view of world politics.Marxists believe that the world should be studied as a whole, and that the process of historical change is an effect of the economic development of the society. It is a different view of the world politics since it focuses more on economies of key states. Constructivists believe that the world is socially constructed, allowing them to investigate global change and transformation. This provides constructivists to use diffusion, which concerns how â€Å"particular models, practices, nor ms, strategies, or beliefs spread within a population† (Dunne 168).Institutional isomorphism (an issue that is observed by conservatisms, sees that the organizations that contain similar environments will eventually resemble each other), and internalization of norms (the belief that what is considered normal for a society, does not come out of nowhere but evolves through a political process), raise issues of an increasing homogeneity in world politics, a closer international community and socialization process. These different theories provide a different grasp and insight on world politics, allowing the liberalism theory to be better molded and applied to a larger area of the international system.

Creative Writing †Darkness Essay

I suddenly awoke. It was three in the morning. It seemed like the whole world was sleeping but me. The silence, sinister. I felt the weight of the darkness pushing on me. My mind darted from one nightmare scenario to the next, the fear of the unknown overwhelmed me and I was paranoid about vicious intrusionsMy bedroom door was wide open. My eyes darted around the room, hunting for anything different, any dark silhouettes lurking in the darkness. I failed to find anything out of the ordinary. This only increased my paranoia even more. I felt as though I was fighting a war with the darkness, darting from one trench to the next, fleeing for my life. I groped around the darkness to find the light switch on my bedside lamp. I flipped the light†¦ Light†¦ Safety. I immediately felt relieved. I listened carefully for any noises. I could only hear the buzz of electricity in the light above me that gave me a sense of safety, and the beating of my terrified heart. Just as I began to calm down and convinced myself that everything was alright, I remembered that I left the back door unlocked and the window gaping open, inviting in the strangers that lurked in the shadows. I soon found myself once again paranoid and quickly turned back to the light†¦ Light†¦ Comfort. I knew the only way I could get to sleep was to lock that door and the window. The darkness weighed on me. Even with light streaming throughout my room, I still felt a little uneasy, like the darkness pressed up against my window trying to attack me. I encouraged myself that all I had to do was quickly go down the stairs and down the hallway to the back door and the window that was splayed open. Who was I trying to kid? I was freaked out. As I nervously stepped out of my room, the floorboards creaked underneath me as if it was a warning not to go out of the safety of my lit up room and into the horrifying darkness. I cautiously looked down the stairs in to the inky blackness below. Biting my lip, I started to make my way down the stairs. The light switch is at the bottom. I looked behind me, one last peek of light before I carried on descending the stairs into the unknown. I stepped down from step to step cautiously. Each step dragged me further into the darkness and further away from the safety of the light. I reached the bottom of the stairs. I ran my hands along the wall, my fingers sought the light switch. Flick! Light†¦ Reassurance. A quick few strides across to the door. I hastily bolted the door. I turned to the right, facing the open window. A gust of wind swirled around me, enveloping me with cold air making the hair on my skin stand on end under protruding goose bumps. I abruptly latched the window shut. I sighed with relief and turned and walked back to the staircase. I reached the base of the stairs. My hand hovered over the light switch. I took a deep breath and turned the light off. I was forced to plunge myself back into the darkness. I began to count down the steps as I ascended the stairs. Twelve†¦ Eleven†¦ Ten†¦ Nine†¦ Eight†¦ Seven†¦ Six†¦ I momentarily paused. Halfway†¦ Five†¦. Four†¦. Three†¦ Nearly there†¦ Two†¦ One. I stepped back into the welcoming arms of the light in my room. I leaped back into the warmth of my bed. I reached my arm across to turn my bedside lamp off, my hand suspended in mid air as my mind raced back to the events of a few moments ago. I withdrew my arm and hand, returning them to the warmth beneath my covers. I decided that tonight, the light would stay on†¦ Light†¦ Security.

Film Blade Runner Movie Review Example | Topics and Well Written Essays - 1000 words

Film Blade Runner - Movie Review Example The movie that was the trend-setter was the Blade Runner. This movie ahs been a fore-runner of sorts, in many ways. For instance, it delves into science and genetics, it also gets into concepts like globalization, climate change, over-population and cyber-punk, to a name some prominent issues. While these issues are common concerns of today, the film voiced the same in 1982! This definitely makes it a futuristic approach. This write-up attempts to examine the theme of humanity in the movie. It portrays the 'replicants' who are similar to human, but are products of genetically engineered scientific processes. These replicant criminals are hunted down by the 'blade runners', who are the police. The events that occur and the twists the plot takes, are reflective of problems that menace today's world. The most striking one of these problems, is that of genetically engineered lives. Thus, the movie is explicitly built around the theme of humanity, as juxtaposed against the phenomenon of genetically engineered replicas. 'Humanity' as a theme in Blade Runner comes across in a number of contexts. Humanity is portrayed as the initial superior force in the movie, which is taken over by artificial intelligence, created by the same humans. It is due to this that a number of problems arise. Humanity and Pseudo-Humanism are portrayed with panache in a variety of venues. The following is analyses into the same. TECHNOLOGY AND HUMANITY In today's fast paced modern world, technology has redefined possibilities. Over the years, technology has revolutionized our lives to the extent that they have more often than not, substituted human action. After the building of such high tech applications and devices, man's attempt has been towards constructing technology that can replicate human beings. The artificial intelligence is one such example. In the process, we do tend to rethink and re-describe, what is distinctively 'human'. In other words, we have been seeking to replicate humans suing technology and have in turn been striving to identify what is humanly 'human'. "As we give our machines selected human characteristics to make them more efficient, they will tend to discover humanity in their own unique way, rising above their 'specifications' to actually become human..These films document how 'human' technology will always assume more human characteristics. They suggest that to be human is to reach some state of equilibrium. In other words, an entity initially bestowed with any combination of human related characteristics will spontaneously approach a more stable state through the passage of time, like a chemical system out of equilibrium. Just as we grow uniformly content through our venerable years, artificially created beings grow increasingly human with age. Roy, designed as a fierce "combat model," has ironically grown to be a poetically rich man and draws our attention to the pertinent issues of Blade Runner by the elegant efficiency of

Policy, politics and public management-A look at the impacts of Essay

Policy, politics and public management-A look at the impacts of judiciary on real estate - Essay Example In the current analysis, residential and open space property in New Jersey classes are grouped together as residential, and commercial, industrial and personal property classes are grouped together as commercial. Statewide, residential new growth accounted for 53 percent of new growth; commercial accounted for 47 percent. These ratios were fairly consistent over the three years. An annual update policy is not appropriate or even possible, in every community. For example, a city or large town with a full-time assessing staff is clearly better equipped and more able to keep assessments up-to-date than a smaller community with a part-time assessment presence. The many technological advances in the tools available to assessors, however, make an annual update policy more attainable in many communities. A number of cities and towns have invested in geographic information systems (GIS) that can quickly bring complex real estate market trends into sharp focus. Powerful PC database and analys is tools have significantly reduced the effort required to perform assessment ratio studies and other analyses necessary to evaluate assessment levels and determine appropriate trending factors. Does a governmental agency's denial of a development permit constitute a "taking" of real property The Supreme Judicial Court recently answered this question in the negative and rejected a propert

Ancient culture Essay Example | Topics and Well Written Essays - 500 words

Ancient culture - Essay Example Also, the civilizations were laddered and followed through a hierarchy. The kings called for extending their territories, hence, subsequently formed a territorial organization that guaranteed their ascendancy and supremacy. The early civilizations have expanded to the following civilizations with the emergence of Greece that greatly influenced the Roman Empire that survived for roughly 1,300 years. [Last Name] 2 recovered are the Warka Vase, the Mycenae and the Capitoline Wolf. â€Å"The Warka Vase or alternatively called as Uruk Vase, is a carved alabaster stone vessel found in the temple complex of the Sumerian goddess Inanna.† It is deemed to be one of the oldest extant works that was believed to have predominantly existed from 3,200 to 3000 BC. It was carved with symbolical details like some cultivated grains, oxen and nude males that implied thievery and renewal. The second artwork is the Mycenae which is an archaeological spot in Greece. It is located about 90 km south west and is bounded by two Greek cities: Argos in the south and Corinth which is 48 km towards the north. Its name, Mycenae, was actually a re-enacted name for its ancient name Mukanai. Albeit it was erected by the people of Greece, its name was taken from some pre-Greek settlers. The third and last artwork is the Capitoline Wolf. It is one of the most symbolical artworks during the prehistoric time s. â€Å"It is a 5th century BC Etruscan statue that is made of bronze cast in the lower Tiber valley.† On it is a female wolf â€Å"suckling a pair of human twin boys, representing the legendary founders of the city of Rome.† All three artworks were identical in motive, that is, essentially symbolical in nature that depicts supreme powers as well as exploitation and an accompanying reformation on the ancient civilizations. Nevertheless, unlike the Warka Vase and the Capitoline Wolf, the second

INTERPRETATION OF & ANALYSIS OF WORK-RELATED DATA Statistics Project

INTERPRETATION OF & ANALYSIS OF WORK-RELATED DATA - Statistics Project Example The interest rate has an effect on the structure of corporate debt. The overall corporate use of dept and the maturity of the debt are affected by the level of the nominal interest. Interest rates have real effects and this will result to inflation. The table suggests that the sampled period had 14.1 percentage points in the ration of the capital financed and the debt incurred. Raising the effective tax on the corporate income from minimum to maximum raised the financed debt by 11.3%. The controlled interest rates resulted to larger estimated effects of taxes on average. Tit rSt = Tit (r + ΔrSt ) = rTit + TitΔrSt. ΔrSt and Tit values are statistically independent. The estimated coefficient should be Tit= r. when ΔrSt together with Tit values are negatively correlated, coefficient Tit will be biased downwards due to the removed value. The table show a correlation between ΔrSt and it T is -0.37. the same results expected in column one which will symbol that the firm assets are longer term because more debt is used. Column two if the table shows the non parametric test, to show if the data is directed correlated to tax. The tax variable was interacted with ghost variables to show the level of the short term interest rate in that year. The results indicate the coefficient is positive. Years when the interest rate is below the quartile, the Tit rSt is replaced by rSt. The level of interest rate is 2%. The content of the table is excellent because it summarizes different variables that are the corporate debt, tax rates, interests/other variables and corporate assets. Interest and other yearly variables of the firm are using a 3 year Treasury bond rate and 3 month Treasury bill rate. It also indicates the calculated Dow Jones index. This is calculated by averaging the opening stock and closing price in each month averaged by monthly figures. The values of the firm GDP is also shown as a

Social Capital Essay Example | Topics and Well Written Essays - 500 words

Social Capital - Essay Example Parents have been known to use their wealth to gain social capital for their children over the years through various ways such as donating large amounts of funds to the school that their children attend among others. The question remains however whether this is right or wrong and should be acceptable within the society. The answer to this can be derived from looking at the pros and cons of this subject. There are a number of arguments that can be used to defend this act. One of them is the fact that by attaining this social capital for their children, the parents are ensuring a better future for them as they are guaranteed help with the trials they may face in the future (Putnam, 2006). Ensuring a better future for one’s offspring can be considered to be the right of every parent and is expected off them. Another pro is that the social capital gained by these children technically does not hurt anyone although it may give them an advantage over others in certain situations, it is not against the law to cultivate relationships that will be beneficial to an individual (McNamee & Miller, 2009). As there are two sides to every coin, there are also cons in assisting one’s child in gaining social capital. The main con can be considered to be the fact that by doing this, the child will not learn essential values such as the importance of independence and the virtue of hard work as they will not have to struggle for the things that they want (Doob, 2013). This can be considered to be a sort of negative education on the part of the parent as it does not help in building up a child’s character. Another con is found in the fact that by teaching a child that what they want can be achieved by money, they risk instilling a devious/delinquent attitude within the child as they are aware that the social capital gained will get them out of trouble (Brown & Iyengar, 2008). For example, a child

Concept of war and conseqences it leaves behind Essay

Concept of war and conseqences it leaves behind - Essay Example The concept of war was thus initially related, in international law, to the delimitation of the penal jurisdiction of States to prosecute and punish, rather than to the definition of the incriminated acts and the attendant penalties. This latter task was left to municipal law, and more particularly to military codes. Except for a few occasional points of contact, a full-fledged partnership between military and economic science was not established until the First World War. In outstanding works on military strategy like that of Clausewitz, the economic complements to warfare are not even mentioned. To make it applicable to our time, however, his famous statement that war is but a continuation of politics through other methods might very well be rephrased. Today it seems equally reasonable to say that modern warfare is largely a continuation of economic policies through other methods. For thousands of years there was only an indirect connection between the economic system and the method of warfare. The ends of war were frequently economic, as when men fought to win tribute or slaves, and certain consequences of war, such as starvation and devastation, had economic significance as well.

First Day at an Electrical Job Essay Example | Topics and Well Written Essays - 750 words

First Day at an Electrical Job - Essay Example    On June 15, 2011, joy would be seen all over my face from the fact that I had secured a job at an Oryx gas-to-liquid company that is classified as a Natural gas producing company. The position that was designated to me was electrical maintenance personnel. My arrival at the Oryx Company was marked with great apprehension because I did not know what to expect in the electrical department of a gas producing company. Numerous pipes could be seen running from one place to another in the company’s compound. Additionally, thick electrical cables were visible that were providing the machines with electrical powers. Natural gas dish machines contributed to most of the electrical machines, which I was designated to maintain by the human resource manager of the company. The morning production section alter I arrived at the company was running smoothly and my job was only to go through manuals that contained the maintenance procedure of the natural gas dish machines. ... exactly twelve o’clock, my supervisor and other electrical personnel took my presence very helping and decided to leave the observation of the electrical wiring as well as the natural gas dish machines. I observed the machines for two hours after which I sensed an electrical burn smell in one of the main supply electrical cable. The smell attracted the attention of other personnel in various departments in the company, which lead to numerous phone calls on the department that I was titled to, which was the department of electrical maintenance. With minimal time to waste, I picked the tools in the office and rushed to a spotted faulty cable. I was surprised to find that one of the motors coolant fans had slipped out of the confined metallic cages and cut the main supply electrical cable into two. The supply cable in that was cut fell on the surface of one of the motors. Most motor surfaces carry a current and once the cable had fallen on one of the surfaces, an electrical short followed intriguing a fire. Fortunately, the company had effective self-fire distinguishers; hence, the fire was put off immediately. Nevertheless, the avoided fire incident did not solve the main problem that had been caused by the faulty coolant fun, which was power cut-out to three natural gas dish machines. Additionally, there was no experienced electrical personnel at the moment that necessitated me to act quickly to fix the electrical supply cable. The process of fixing the cable involved creating a joint at the point that the fun had cut. The other main step was to ensure that the faulty fan was replaced to avoid such a risky incidence. However, most of the risk I got exposed to was fixing the damaged electrical supply cable.  Ã‚  

The Effect of Temperature on Rate of Reaction Essay Example for Free

The Effect of Temperature on Rate of Reaction Essay In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature, surface area, concentration, catalysts, light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction Only affects solids so this will not affect our experiment When the surface area increases the rate of reaction increases as there is more surface area for the particles to work on, thus, there are more collisions per second Example : It is easier to light a fire with small pieces of stick than using large blocks of wood Concentration Concentration is the amount of molecules of a substance in a given volume Concentration affects solids, gases and liquid so this will affect our experiment When the concentration increases the rate of reaction increases as there are more molecules present, therefore there are more collisions between molecules (Collision theory) Example : zinc reacts fairly slowly with dilute hydrochloric acid but when the acid is concentrated, the rate of reaction increases. Catalysts A catalyst is a substance which speeds up the  rate of reaction without itself going undergoing any permanent chemical change – this means only small amounts of catalysts are needed to speed up reactions When a catalyst is involved in an experiment there is less energy needed for the reaction therefore there is more collisions per second We will not be using catalysts in our experiment Example : Decomposing hydrogen peroxide  solution at room temperature is very slow, but using a small amount of manganese oxide greatly increases the reaction rate and oxygen is given off rapidly Light Light is a form of energy and it causes many chemical reactions to take place. Light does not affect our experiment Example : Photosynthesis Temperature Collision theory is used to explain how different factors affect the rate of a chemical reaction. For a reaction to take place the reactant particles must collide with each other with adequate energy (activation energy), this energy is used to break the bonds between the particles. If the particles do not have enough energy they will bounce off each other without reacting. By increasing the temperature the particles gain more energy and move faster causing more collisions per second. 10oC 60oC Previous Experiments These previous experiments give us background information on rates of reaction: Acid and limestone CaCO3(s) + 2HCL(aq) CaCl2(aq) + H2O(l) + CO2(g) Apparatus – Conical flask, hydrochloric acid, marble chips, cotton wool and scales In this experiment we mix a certain mass of large marble chips with a certain volume of hydrochloric acid in a conical flask and use cotton wool to trap the acid spray. As the carbon dioxide is given off from the flask, the mixture loses mass, this is measured and recorded every minute until the reaction is over. The experiment is repeated again using the same mass of marble chips and the same volume of hydrochloric acid and the same temperature but instead using small marble chips. When we look at our results we find that the larger marble chips take more time to react than the smaller marble chips which show that as the surface area increases, the rate of reaction increases. Decomposition of hydrogen peroxide solution H2O2(aq) 2H2O(l) + O2(g) Apparatus – Conical flask, gas syringe, hydrogen peroxide solution and solid manganese oxide In this experiment we firstly measure the time taken for hydrogen peroxide to decompose and produce 50cm3 of oxygen at room temperature and without a catalyst. We use a gas syringe to measure the oxygen given off. Then we repeat the experiment but instead add a small amount of solid manganese oxide to the hydrogen peroxide solution. When we look at our results we find that without the catalyst (manganese oxide) the reaction is very slow, but when we add the catalyst the decomposition is very fast and oxygen is  rapidly given off which shows that catalysts increase the rate of reaction. Sodium thiosulphate and hydrochloric acid Na2S2O3(aq) + 2HCL(aq) 2NaCl(aq) + SO2(g) + S(s) + H2O(l) Apparatus – Sodium thiosulphate, hydrochloric acid, stop clock, a measuring cylinder and white paper with a black cross In this experiment we vary the concentration of the sodium thiosulphate, add it to a given volume of hydrochloric acid and time how long it takes for the mixture to go cloudy and the cross to disappear. When we look at our results we see that as we increase the concentration of sodium thiosulphate the rate of reaction increases. Hypothesis My prediction is, as the temperature of the reaction mixture increases so to will the rate of reaction as at higher temperatures the particles have more energy and will collide more hence increasing the rate of reaction. This is explained by the collision theory. The collision theory also allows me to predict that my time against temperature graph will have negative correlation as the time taken will decrease as the temperature increases. I also predict this graph will be curved as the time taken will not be directly proportional to the temperature. I also predict that as I increase the temperature of the mixture, the time taken for the cross to disappear will decrease. Reaction In my experiment I shall be investigating the effect of temperature on a reaction rate by reacting sodium thiosulphate in dilute hydrochloric acid as shown in the equation below Sodium + hydrochloric Sodium + Sulphur + Sulphur + Water thiosulphate acid chloride dioxide Na2S2O3 (aq) + 2HCL (aq) 2NaCl (aq)+ SO2 (g) + S (s) + H2O (l) Sodium thiosulphate is a clear liquid and hydrochloric acid is a clear liquid, when they react together the solution turns cloudy due to the sulphur. The reaction is exothermic as the energy required to break the bonds is less than the energy needed to make new bonds. Procedure Apparatus †¢ Conical flask †¢ Measuring cylinder †¢ Bunsen burner †¢ Thermometer †¢ Stop clock †¢ White paper with a black cross Method 1. Measure out 10 cm3 of sodium thiosulphate and 40cm3 of water into a flask. Measure out 5 cm3 of hydrochloric acid an a measuring cylinder 2. Heat the thiosulphate solution to the required temperature using a Bunsen burner 3. Add the acid and start the stop clock. Swirl the flask to mix the solutions and put the solution on the white paper with a black cross 4. Look down at the cross and stop the clock and note the time taken when the cross has disappeared. Record the temperature of the mixture in the flask. Variables The variables we will need to keep constant are †¢ The concentration of sodium thiosulphate †¢ The concentration of hydrochloric acid †¢ The volume of hydrochloric acid †¢ The same colour of cross †¢ The same thickness of cross †¢ Look at the cross from the same height The independent variable is the temperature. We will take 7 different recordings between 10o-70o We will do each recording 5 times and get an average to make sure the results are accurate. Results I will record my results in the table and make a time against temperature and a 1/time against temperature graph as shown below

Graphene Is The Future Philosophy Essay

Graphene Is The Future Philosophy Essay This report will contain a brief history of, a main body, some properties of and a main description of a material called Graphene. A super material. Within the sub categories and different pages of the report you will come to find out for yourself just how amazing and the seamlessly endless possibilities of this wonderful material. When a new material has been discovered it brings new and exciting times to the scientific and technological world. With a new material you have the opportunities to take a look back on previous unsolved problems and also bring new ones to the table. For the first time ever scientists have been able to isolate single two-dimensional atomic layers of atoms. These are one of if not the thinnest material known to man also just so happens to have the strongest bond in nature, the C-C bond. To accompany the report along the way you will find images and graphics of the super material in its varying form. Also in the report you will come across the properties of graphene and will see that in so many ways that this super material far exceeds possibly all other materials in comparison to itself. A brief description about Graphene Graphene is what we call a 2D material it derives from a single layer of graphite. Its structure is made of carbon atoms arranged in a honeycomb like structure similar to a chicken wire. Even though graphene is the thinnest material today it also is the strongest material today. Graphene conducts electricity as efficiently if not better than copper and has no comparison in its ability to conduct heat. Graphene is almost completely transparent giving it an already futuristic look. The way it breaks down is: Graphite = 3D material Graphene = 2D material Nanotube = 1D material Buckyball = 0D material Brief History Although graphene has been a known material since 1857 and many people have been trying to find a way to work on or produce graphene in a way that could be used commercially an answer was not forthcoming until the work of Andre Geim and Kostya Novoselov. The work that these produced in the University of Manchester in the year of 2007 was to become ground breaking when it came to the super material graphene. Almost everything had been discovered about graphene everything except the properties of the material and this intrigued Andre, who then asked a recently graduated student Kostya in 2002 to see how thin he could make a single piece of graphite by polishing it down. As they could not get thin enough slices the work continued until 2004. At first Kostya could not find a way to get thin enough slices from the graphite, Andre asked his friends and colleagues and a senior member by the name of Oleg Shklyarevskii said to Andre that the piece of tape that they used to peel of layers of graphite would have thinner layers than trying to polish it down. From there on the work on finding the properties of graphene began. Andre Geim and Kostya Novoselov went on to win the Nobel Prize in 2007 in physics for their work they achieved on graphene. Timeline of the most recent entries of grapheme 1947 Graphene first studied as a limiting case for theoretical work on graphite by Phillip Wallace 1966 First attempts to grow multilayer graphite Hess W M and Ban L L also Karu A E and Beer M 1984 Massless charge carriers in graphene pointed out theoretically by Gordon Walter Semenoff , David P. DeVincenzo and Eugene J. Mele 1987 Name graphene first mentioned by S. Mouras and co-workers 2004 Graphene isolated in free form by Andre Geim and Kostya Novoselov 2004 Observation of graphenes ambipolar field effect by Andre Geim and Kostya Novoselov 2005 Anomalous quantum hall effect detected showing massless nature of charge carriers in graphene Andre and Kostya and by Philip Kim and Yuanbo Zhang 2006 Quantum Hall effect seen at room temperature by Novoselov et. Al. 2007 The first ever detection of a single molecule adsorption event by Schedin et. al. 2008 Measurements of extremely high carrier mobility by Bolotin et. al. 2010 Andre and Kostya were awarded the Nobel prize in physics for their work on graphene. Main Body Graphene is the super material that will change the future of this world. Between its outstanding electrical and amazing mechanical properties there is just no other material that even comes remotely close to the potential this material possesses. When Andre and Konstantin revealed their work on graphene not even they could have foreseen what an impact this new and wonderful material would bring to the world. Graphene will forever shape our future. Although graphene at the moment is still not a household name it most indefinitely will be in the very near future. It will be used in almost everything from super-computers to your mobile phone, from separating water from other substances, from creating a futuristic world and to improving the properties of other widely used materials. When the world has found a way of mass producing graphene in a commercial way the world itself will change. Moores law states that computer power will double every 18 months up to and until the point where our silicon can no longer take it passed the barrier, the barrier being that silicon can only conduct electricity at a certain speed, graphene smashes that speed. If you look at the world and technology 10 years ago and think what it is like now there has been a massive change and improvement in the scientific and technological world as we know it. Graphene with its superior properties will take us even further in to the future, on its own and by improving materials and substances of today. Properties of Graphene Although just one atom thick, graphene posses outstanding mechanical, electronic, optical, thermal and chemical properties, described below.  Graphene is a one atom thick sheet made of carbon atoms, arranged in a honeycomb (hexagonal) lattice. Its height was measured to be just 0.33nm, almost one million times thinner than a human hair! Graphene is the ultimate 2-dimensional carbon molecule. Graphite, the well known 3-dimensional carbon allotrope found in our pencils, is nothing more than a stack of several graphene planes. Graphene shares its structure with two other materials which are exciting todays scientists: carbon nanotubes and fullerenes (also called bucky-balls), seen as a 1-dimension and 0-dimension rolled pieces of graphene. Electronic Properties Graphene is a great if not thee best conductor of electrons. The electrons are able to flow through graphene more easily than copper, they travel through the graphene sheet as if they carry no mass, as fast as just one hundredth that of the speed of light. The main material in computer chips today is silicon but in order to create faster and more improved computers we needed a new material to take us there. Graphene is that material Mechanical Properties To calculate the strength of graphene, scientists used a technique called Atomic Force Microscopy. By pressing graphene that was lying on top of circular wells, they measured just how far you can push graphene with a small tip without breaking it. It was found that graphene is harder than  diamond  and about 300 times harder than  steel. To put this into context, it will take the weight of an elephant balanced on a needle-point in order to break this one atom thick fabric! The tensile strength of graphene exceeds 1 TPa. Even though graphene is so robust, it is also very stretchable. You can stretch graphene up to 20% of its initial length. It is expected that graphenes mechanical properties will find applications into making a new generation of super strong composite materials and along combined with its optical properties, making flexible displays. Optical Properties Graphene, despite being the thinnest material ever made, is still visible to the naked eye. Due to its unique electronic properties, it absorbs a high 2.3% of light that passes through it, which is enough that you can see it in air (if you could manage to hold it up!). To help enhance the visibility of graphene flakes we deposit them on to silicon wafers which have a thin surface layer of silicon dioxide. Light shining on to these three-layer structures will be partially transmitted and partially reflected at each interface. This leads to complex optical interference effects such that, depending on the thickness of the silicon-dioxide layer (which we can control to a high degree of accuracy), some colours are enhanced and some are suppressed. This technique takes advantage of the same physics which causes the rainbow effect that you see when you have a thin layer of oil floating on water. In this case, the different colours correspond to longer/shorter optical path lengths that the light has had to travel through the oil film. Those above are the most common attributes of graphene but there are a few more. What you are about to read will come across as something straight out of a science fiction movie or novel, graphene can heal itself thats right heal itself, because of the fact that graphene is only one atomic layer thick it seeks out other atoms to bond to, so it grabs the other graphite atoms around it closing the gap and essentially healing itself. But it doesnt stop there as graphene is so thin it can be placed over other materials giving it a graphene coating which in turn improves the material it has been placed on top of. If you place that membrane of graphene over copper it will almost completely stop the copper rusting creating longer lasting materials. Graphene is tougher than diamond previously thought of as the hardest material on earth and 300 times stronger than steel yet is so ductile than it can bend, paving the way for a future where you can fold up your mobile phone and put it in your pocket. Graphene has also been found able to distil water making it cleaner. The uses for this could almost wipe out diseases spread where water is contaminated, creating healthier and greater living conditions. The list of properties and applications of graphene grow almost on a daily basis and bring with it new and innovative ideas to the world. Future Applications The future applications of graphene are almost limitless, because of the abundance of properties that graphene has people, science and technology will be inventing new and wonderful ways to integrate it into our world. With graphene being so thin yet so strong there are markets for it such paper thin flexible displays for televisions, watches and phones. When it comes to our computers and the chips inside them that are used control them the material that we use is silicon, but there is only so much that silicon can do and so far it can take our computers today, this is where graphene comes in. Graphene because of its amazing electrical properties it will be the material to take our computers into the future. Graphene being so thin it can be cut or crumbled into small flakes and introduced to other materials to make a composite material. If you added the graphene flakes to plastic to make a composite material that way it could be used to make a lighter and conductive material for aircraft making it effective against lightning and because of it being lighter it will also be fuel efficient. Graphene can also be introduced to other material in such a way as a bond, if you bond graphene to the likes of copper it will reduce the amount and time it takes for the copper to oxidise or rust. Thus making the copper last longer and become more efficient. Conclusion Graphene the material that can barely be seen yet will change the world in so many ways. From its unique ability to heal itself to its incredible strength down to its incomparable ability to conduct electricity. This amazing material has no boundaries. Graphene although not yet a household name in many peoples eyes will soon become a well known worldwide phenomenon. Just as everyone wants the new latest technology or gadgets on the market, people will want the new technology, materials and computers that have graphene in them. Graphene the super material has no limits to what it can achieve. With its unbelievable properties and applications in so many fields, the possibilities are endless. Graphene will change our future to cleaning up the water in Africa to making materials that are in use today become more effective and sustainable in a way that if you put a graphene, layer over copper it will reduce the amount of time it takes to oxidize and rust, making it a more efficient material. It can also be used for composite materials so if you take one material and bond it to another it makes a composite material, if you put graphene with a plastic t will create a lightweight material that can withstand lightning which would be extremely useful in aircrafts, making them lighter and more fuel efficient. Graphene has many different properties ranging from the normal to the extreme and to some that even seem straight out of a science fiction novel. Graphene is the material that will make our technology today seem like we have been using caveman techniques for the past 10 years. It is the material that will pick the world up and throw it in to a brighter and better future. Graphene is the future! à ¢Ã¢â€š ¬Ã‚ ¦

Connecting Time, Beauty, and Language :: Borger The Secret Miracle Literature Essays

Connecting Time, Beauty, and Language Our class has been pondering language. People have asked each other, 'do you think in words?' Some have suggested that when we are involved in activities such as chess or tennis, we do not think in words, but rather act from an intuitive space that needs no language. Our class has also been pondering time. We have reminded each other of a paradox that exists in our everyday lives: we cannot be truly in the moment, for as soon as we consciously start trying to be in the moment, we have removed ourselves from the moment. There is the idea of that nebulous, nameless space proposed in both lines of thought which begs to be connected. I am led to questions: Can we connect time and language? In other words, can "being in the moment" in the sense of our perception of time mean that we are finally centered in that wordless space where we act from instinct? I can trace this thread of questioning to a Borges story ("The Secret Miracle") that I love wherein a man is sentenced to death by firing squad. He prays to god to be given enough time to finish his play before he dies, and god freezes time (the shadow of a bee on the stones near his feet remains motionless, and puffs of cigarette smoke from the soldiers' mouths hang immobile in the air). The man cannot move, yet he can think. He spends his time (or his out-of-time) working on his play, and when he finally feels it is done, the normal course of time resumes and he is shot to death. While intense experiences of immersion in a moment may not take this form, Borges creates an interesting commentary on the notion of being in the moment. The man is frozen in the moment in most senses of the word, though he is able to think and to use language to define his situation. The idea that I am working with suggests that it is only when we pull back from a moment that we engage with language in order to describe the activities that were, in a sense, timeless only moments before. The man before the firing squad is given the luxury of both the moment and the ability to reflect on it. This raises another interesting question. If "time" is frozen and no one moves, what kind of scale is the man's mind working on?

Atwater V. The City of Lago Vista :: essays research papers

Atwater V. The City of Lago Vista   Ã‚  Ã‚  Ã‚  Ã‚  In Texas it’s illegal to drive or have any other passengers in the car seatbelt less, mainly children riding in the front seat. Mrs. Atwater was driving in Lago Vista, Texas with her children in the front seat and nobody wearing a seatbelt. A Lago Vista police officer observed the seatbelt violations and pulled her over. After that he verbally berated her, handcuffed her, put her in the squad car, and drove her to the police station, where she was searched extensively. Officers then rook her mug shot and put her in a jail cell for an hour before she was taken to a magistrate and released on bond. She was charged with the seatbelt violations with some other charges as well. She pleaded no contest to the seatbelt misdemeanors and paid a $50 fine. Atwater and her husband filed suit under 42 U.S.C SS 1983 alleging, inter alia, that the actions of respondents had violated her Fourth Amendment right to be free from unreasonable seizure.   Ã‚  Ã‚  Ã‚  Ã‚  They should have never arrested her to begin with, although the whole seatbelt violation law is good it shouldn’t be used with excessive force as it was in this case. A fine is very suitable because it’s a reminder if you ever get one because you’ll surely wear one after the fine. The main reason it happened to begin with is because it was in a small town and the police officer was either bored or wanted the general public to know that he’s cracking down on the seatbelt violation law.   Ã‚  Ã‚  Ã‚  Ã‚  There’s not much relation to class with this case unfortunately.

Hughes Promotes the African Civilization Essay

Still recognized as one of the literary giants of America. Langston Hughes played an of import function as a author and mind of the Harlem Renaissance. This was an artistic motion of African Americans that arose during the 1920s to observe the lives and civilization of Africans in the United States ( â€Å"Langston Hughes† ) . Because most of the African Americans had been brought to the New World as slaves of white Masterss. it was poets and authors like Hughes. an African American adult male. that helped to alter the perceptual experience of African Americans in the heads of the Whites one time bondage had been abolished. Hughes’ verse forms. â€Å"The Negro Speaks of Rivers† published in 1926. and â€Å"Negro† published in 1958. hence depict African Americans as ordinary human existences like everybody else. and yet richer in civilization and civilisation than many others. seeing that they have participated in the building of the great â€Å"pyramids. † mentioned in both verse forms ( Hughes. 2007 ; Hughes ) . Hughes was direct and unfastened about the fact that his Hagiographas were meant to elate the conditions facing Africans in the United States ( Hughes. 1923 ) . They had been slaves. so therefore the Whites did non esteem them plenty even after the abolition of bondage. â€Å"The Negro Speaks of Rivers† was published five old ages after the Tulsa Riot and during the Harlem Renaissance ( â€Å"Race Riot. Lynchings. and other Forms of Racism in the 1920s† ) . â€Å"Negro. † on the other manus. was published at a clip when racism was considered a bigger job than earlier. In fact. during the 1950s racism was at the head of American idea ( Lewis. 2002 ) . Many conflicts were fought to put inkinesss equal to Whites in the heads of all Americans. Hughes’ part of the fiftiess. his verse form â€Å"Negro. † was merely different to the extent that it was an artist’s part. Countless other Africans were contending on the streets of America to put things right one time and for all. Both verse forms. â€Å"The Negro Speaks of Rivers† and â€Å"Negro. † are looks of African American individuality. The first verse form begins therefore: â€Å"I’ve known rivers†¦Ã¢â‚¬  ( Hughes ) . In the 2nd as in the first. although the poet has made clear that the storyteller is a negro – the verse form. â€Å"Negro† begins with the words. â€Å"I am a Negro† ( Hughes. 2007 ) . Because the Whites had been Masterss over African slaves. they were inclined to look down upon Africans. Since the Whites were proprietors of belongings in America and surely richer. the inkinesss longed to be like the Whites. But. Hughes would wish the Africans to experience at place in their ain teguments. With images of rivers every bit expansive as of the Euphrates. the Nile and the Mississippi – the verse form. â€Å"The Negro Speaks of Rivers. † reminds the African of his or her historical roots or the history of the great African peoples who have traveled across all of these rivers adding value to the historical watercourse of civilizations. The verse form has irregular. long lines without beat because it is doing a basic point: the African psyche is every bit deep as any human psyche could be. The African single indulges in deep thought as he travels across antediluvian rivers. What he must brood on is his ain individuality on foreign dirt. Remembering the history of his civilisation. he must maintain in head that life carries on. What’s more. the poet reminds his fellow African that the black race has survived despite all odds ( Hughes ) . Because â€Å"The Negro Speaks of Rivers† was published during the extremum of Harlem Renaissance. it refers to depth of the African psyche. given that art is frequently understood as the voice of the psyche and the Harlem Renaissance was all about advancing African art and civilization in the United States. Using soft images such as the Mississippi’s bosom â€Å"turning aureate in the sundown. † the poet uses his accent on rivers to stand as a symbol for the deepness of the African psyche ( Hughes ) . â€Å"Negro. † published during the 1950’s besides references â€Å"depths† ( Hughes. 2007 ) . As in â€Å"The Negro Speaks of Rivers. † the deepnesss mentioned by Hughes in both verse forms most likely refer to the deepness of African knowledge excessively. After all. both verse forms refer to the history of Africans. â€Å"Negro. † with its sentence agreements depicting either what had happened to Africans or what they have done in the history of the African civilisation – besides makes reference of the experiences and/or accomplishments that set Africans apart. for illustration. bondage and vocalizing ( Hughes. 2007 ) . The poet represents all Africans in both his verse form. â€Å"The Negro Speaks of Rivers† and â€Å"Negro. † What is more. both poems reference the fact that the Africans were portion of the labour force that built the ancient pyramids. In â€Å"The Negro Speaks of Rivers. † it was the African who â€Å"looked upon the Nile and raised the pyramids above it† ( Hughes ) . In â€Å"Negro. † the pyramid is said to hold arisen under the African manus. implying that the African was greatly skilled even at the clip of ancient pyramid building ( Hughes. 2007 ) . The chief difference between the two verse forms. â€Å"The Negro Speaks of Rivers† and â€Å"Negro† is. doubtless. the spirit of hope felt through the first verse form versus the sense of desperation assorted with hope in the 2nd verse form. Hughes must hold composed â€Å"The Negro Speaks of Rivers† in a different frame of head wholly. The verse form clearly promotes the African American civilization and art as originating in the deep history of humanity ( Hughes ) . Although â€Å"Negro† makes reference of universe history excessively. it does non needfully advance African American art. apart from its mention to vocalizing. The African American may be considered as more of a labourer or low paid worker than an creative person in â€Å"Negro† ( Hughes. 2007 ) . Possibly the verse form was non written to advance African American art at all. As mentioned antecedently. the 1950s saw the Whites and inkinesss of America contending over the inquiry of equal rights of Africans in about all major countries of province operation. including instruction. There were terrible jobs related to racism during this period of American history. Clearly. inkinesss were being looked down upon. It was in the temper of that hr that Hughes composed â€Å"Negro. † The verse form speaks of the mundaneness of the African person while depicting the good utilizations that Africans have been made of. for illustration. in the building of the â€Å"Woolworth Building† ( Hughes. 2007 ) . â€Å"The Negro Speaks of Rivers† is surely non blue or dejecting like â€Å"Negro. † chiefly because it does non do reference of bondage and victimization as the 2nd. After all. Hughes is contending against unfairness toward African Americans in the 1950s. In the 1920s. his cause was wholly different. If â€Å"The Negro Speaks of Rivers† had made frequent reference of darkness as does â€Å"Negro. † the Harlem Renaissance could non hold been considered a forerunner of hope ( Hughes. 2007 ) . References Hughes. L. ( 2007. Dec 2 ) . Negro. Retrieved Mar 15. 2009. from hypertext transfer protocol: //amandafa. blogspot. com/2007/12/negro-by-langston-hughes. hypertext markup language. ————– . ( 1926. Jun 23 ) . The Negro Artist and the Racial Mountain. The State. Retrieved Mar 15. 2009. from hypertext transfer protocol: //www. hartford-hwp. com/archives/45a/360. hypertext markup language. ————– . The Negro Speaks of Rivers. Retrieved Mar 15. 2009. from hypertext transfer protocol: //www. wmrfh. org/dcrews/index_files/Hughes_The % 20Negro % 20Speaks % 20of % 20Rivers. physician. Langston Hughes. America’s Story from America’s Library. Retrieved Mar 15. 2009. from hypertext transfer protocol: //www. americaslibrary. gov/cgi-bin/page. cgi/aa/hughes. Lewis. C. H. ( 2002 ) . The Rise of the Civil Rights Movement in the fiftiess. Retrieved Mar 15. 2009. from hypertext transfer protocol: //www. Colorado. edu/AmStudies/lewis/2010/civil. htm. Race Riot. Lynchings. and other Forms of Racism in the 1920s. Retrieved Mar 15. 2009. from hypertext transfer protocol: //www. premise. edu/ahc/raceriots/default. hypertext markup language.

Views on Baz Luhrman’s Adaptation of Romeo and Juliet

Capulet my name is anonymous. My topic for the IOP is based on the film ‘Romeo and Juliet by B Luhrmann . I am going to impersonate William Shakespeare with a monologue where I shall speak aloud my views on Baz Luhrman’s adaptation of my text. When I wrote this book I was attracting a crowd with very orthodoxed thnking . the idea of two young lovers going against the society merely for lust was intolerable! hence in my book they died 4 days into their courtship. Death was their punishment for going against the knomes of the society. my book was a one with a serious message put forth to the reader.Where as the movie which was adapted frm my text seems to be moulded inorder to attract an audience with a very openmindset mindset who prefer entertainment over moral values. It had a many humourous scenes ,mercutio dressing up like a girl and dancing at the capulets party,which the modern crowd would enjoy more. The main objective of the this movie was to make money,which was done by mocking at my well known novel of romeo and Juliet.. adapting their movie from my book must have been a huge advantage for them as tthey wouldn’t have needed any script or a new story which has the risk of being disliked by the audience. hey just changed the costumes and situations into modern day ones which will obviously entertain the audience as they picture romeo as a young teenager in the days of old and not wearing a suit and smoking a cigarette on the beach.. the movie has a many differnces compared to the book in order to make the film more entertaining. in my book Juliet was 14 years old but in the movie Juliet doesn’t appear to be 14 at all. the movie makers changed this aspect of the book in their movie in order to make the scenes expressing lust more entertaining for the crowd.But the reason I had Juliet to be so young in the book was to highlight fact that her actions were all justified by the fact that she was immature. The costumes of the actors in the movie were very western and commonly worn by the people of the new times. in my book they were meant to be dress the way the people did during the time of the book being published. instead of wearing the olden day clothes characters like benvolio were wearing hawaian shirts and romeo was dressed in a suit smoking a cigarette on the beach . scenes like this weren’t common to see in days when I wrote the book.Instead of actually swords the charactes threatened each other with shinning pistols with the word â€Å"sword† carved on them. this aspect of the movie killed the seriousness as in the opening scene the capulets pointed a pistol at the montagues and ordered him to raise his â€Å"sword†. How will two people have a dramatic fight holding two pistols against each other? In my book this scene was supposed to be a dramatic fight . The royal prince was replaced by a police official to make the movie more relative to the modern world.The reason my book had a royal prince was to highlight he fact that these two lovers were going against the will of the highest authority. the movie portrayed the same situation but the police official replacing the prince is another example which I saw where barz luhrman has presented a change in the film for it to be resembling a modern life situation. In two offices of the capulets and the montagues were shown in the film as tall skyscrapers where as my book was geographically set in Verona which is supposed to be a small and silent town. During the time when I wrote this book ,writers and producers would only produce works which gave some hints to make the viewers or readers to ponder over certain real life situations. but I guess times have changed and so has the mindset and the taste of the audience. they seem to enjoy mockeries instead of eye openers I feel barz luhrman has not been faithful to my text while depicting it as a mmovie because the movie simply mocks at the text if I had an option to c reate a film depicting my text it would have been very different not changing any scenes for it to be enjoyed by the modern crowd.

Corporal Images

First and foremost, it is of dire importance to draw a distinction between appearing to be ethical and actually using ethical considerations. There has been an attempt by several corporations to appear to be ethical. In these instances there has only been an effort to reach an immediate goal of prosperity. Of course this will work in the short run but in a sophisticated society â€Å"fake† will not survive. With the advances in technology and the increase of information, we as a community are becoming better informed. It is only a matter of searching and gathering the facts to make the decisive decision of proceeding with a certain company. In current times the line dividing truly ethical considerations and appearing to be ethical are becoming much easier to distinguish but in several cases are still unclear. In practice ethical considerations lead to a decrease in friction within the public domain. In other words, less conflict will arise between private individuals and corporations when ethical behavior is being be experienced. For corporations, social conflict takes place when behavior is seen as wrongful or unethical but in actuality is perfectly legal. Many times this leads to calls for boycotts from churches or other organizations. Whether the public demonstrates in front of the gates, charitable organizations set up wailing walls, or the media uses pressure through critical reporting, this will mean a definite loss in social recognition of the company in question. Kathy Lee Gifford fell victim to the media a couple years ago when her clothing company was caught abusing child labor laws in factories abroad. Whether this leads to a fall in the share price or there is a measurable loss in sales are of secondary importance. Criticism â€Å"from the outside† generally means that the management role is taken up with defensive activity and therefore not free for the shaping of the future. In the Kathy Lee Gifford case and as in many other cases, the issue faded and disappeared with time. Many economist have said that the most intelligent corporations forbid dealings that could provoke negative social reactions. On the other hand , there is steady increase in evidence that shows a corporation's â€Å"image† can become a competitive advantage when used as a tool of propaganda. This method of approach can in some circumstances be used to gain market advantages as it did for a local fast food chain in California. Jack in the Box was convicted of not entirely cooking their hamburgers which in turn was infecting children with salmonella poisoning. Due to the conviction and the attention from the media, the fast food restaurant was put under strict regulation. In other words, the new enforcement of regulation was a safeguard against the consumption of salmonella. Many individuals saw this as a benefit and as a result wanted to eat at Jack in the Box. This can be a positive market advantage where a corporation gains the attention from negative issue but can in the long run gain a larger market. Another example practiced in the Unites States, is where a number of companies that are not only environmentally exemplary but go beyond the minimum legal requirements. Other costs can arise through conflict with one's employees. The fact that a company is the focus of public criticism can have disastrous results for morale and job satisfaction within a corporation. In the long-term, this can lead to valuable employees looking for other work and leaving the corporation. This can be a detriment when a business is trying to establish itself as reliable As employees are a corporation's most valuable â€Å"capital†, this alone is reason enough why unethical conduct cannot lie in a corporation's interests. Various studies have shown a positive correlation between ethical conduct in a corporation and job satisfaction. Where top management is seen as giving strong support for ethical consideration, job satisfaction increase together with the degree of employee identification with the corporation. Everything points to the conclusion that a positive reciprocal relationship exists between â€Å"job satisfaction† and â€Å"ethical conduct†. The ethical considerations of a corporations play a role in the entirety of value systems, thought and decision patterns, methods of behavior, and structures within a corporation that often emanates a feeling of togetherness and thus boosts motivation to work. The role of the corporation within the community can also reinforce an employees behavior. A business that has been plagued with a negative reputation or considered to be â€Å"unethical† within the neighborhood could lower the morale of its employees. On the other hand, behavior that prompts customers to buy and motivates investors to purchase shares is looked upon with pleasure and pride can also reinforce employees' positive identification. A great example of this can be recognized in San Diego, California. Qualcomm in recent years has become one of the most prominent and successful companies among customers and its community. Not only does this corporation hold a large majority of San Diego employment but it also holds the name of the stadium. Its reputation within the city has given the employees a sense of pride for whom they are working. What Jakob Burckhardt formulated for individuals can also be applied to corporations: they are not just what they are, but also what hey have set themselves as ideals. Even if they do not emulate these to their capacity, a part of their being is marked by the mere fact of wanting to. There are a number of indications that show corporations whose practice ethical conduct are considered as more attractive employers than those which have been publicly criticized due to failure to recognize their responsibilities to the welfare of the community and the environment. A poll taken from Business Week revealed that 88% regard â€Å"work satisfaction†, 67% a â€Å"good working atmosphere†, and 66% a â€Å"job that makes sense† as important criterion in choosing an employer. These are all factors which can hardly be true of companies where Green peace demonstrates in front of the factory gates or churches call for a boycott. Corporations are now no longer measured on what hey produce, but on what they present. The strength of many trends can instantly change at the blink of an eye, especially when the labor market spreads hopelessness for those seeking a career. But an increasing number of individuals, whether as employees or consumers, are taking ethical viewpoints more seriously that 10 or 20 years ago. The next question we should ask ourselves is, why has this happened. Why are we as a society increasing our ethical considerations with corporations? One answer that was stated before is with the increase of information, we as a society are becoming more knowledgeable of our decisions. We are enabling ourselves to make more â€Å"ethical† decisions based on the whims of a corporation. Many of those with responsibility in corporations are complaining about an increase in an already too thick jungle of laws, stipulations, and directives. Commercial freedom, the complaint goes on, can no longer exist within the ever narrower thread of state regulations – too many rules endanger the economic success. There is a great deal of evidence that such complaints have set forth the idea that â€Å"less state† can have an enlivening effect on corporate commitment. Freedom is, however, always an ethical duty and may thus be demanded on only as a correlate of responsibility. Anyone who wishes to help avoid further criticism and correct inappropriate behavior must offer legitimate proof of ethically responsible conduct. Back to the example of fast-food restaurant, Jack in the Box, in order to continue serving the public they were required to prove they cooking their meats to full capacity. They had to provide evidence of corrected demeanor as well as compensation. Ethically responsible corporate dealings mean dealings beyond the status quo, active shaping, and forward-looking ethical balance. Minimal will not do in a society whose wants and needs are infinite. A corporation must not only meet but exceed regulations. Whoever maintains a running battle on current law to defend positions that might have been based on a regulations many years ago but which are now regarded as â€Å"wrongful† and will be even more so in the future, is not being business like but negligent. Such companies that support those social forces will demand tighter controls and more state intervention. Innovation, efficiency, effectiveness, the ability to utilize market potential optimally, recognize the signs of the times, and the art of saving costs and expense in the right place at the right time will continue to be of great importance alongside all the other corporate virtues. However, an additional element will gain in significance: business ethics. It will become more and more a new, solid basis for competitive ability, breaching the limits of classical markets. The more wealthy a society is, the more significant non-material values become. Corporations that act in a visibly ethical way will be preferred by informed consumers more and more. This will become a problem for those corporations that ignore moral aspects, and for other it will be an opportunity to get to the very top.

Residual Stress

INFLUENCE OF RESIDUAL STRESSES ON FATIGUE FAILURE OF BUTT WELDED STAINLESS STEEL PIPE Areef A Department of Mechanical Engineering Chendhuran college of Engineering and technology Pudhukkottai, Tamilnadu [email  protected] com Abstract— This project is aimed to understand the influence of residual stresses on the fatigue failure of butt welded stainless steel pipe joints. In order to carry out this study it requires an experimental fatigue failure data and a computer aided analysis of these results. A finite element scheme will be developed to simulate the residual stress in weld using the experimental data.A Thermo-elasto-plastic analysis will be used to replicate the butt welded pipe joint and the residual stress will be determined. Residual stress that arises in welded joints by heating and cooling cycles during the welding process is another major factor in fatigue failure of welded structures. Welding residual stresses might lead to a drastic reduction in the fatigue st rength of welded elements. In multi cycle fatigue (N > 106 cycles), the effect of residual stresses can be comparable to the effect of stress concentration.The effect of residual stresses on the fatigue life of welded elements are significant as regards relieving harmful tensile residual stresses and introducing beneficial compressive residual stresses in the weld toe zones. The fatigue failure can be classified in to two categories based on the number of cycles taken to fail. A. High cycle fatigue High-cycle fatigue is when the number of cycles to failure is large, typically when the number of cycles to failure, Nf is greater than 103. B. Low cycle fatigue Low- cycle fatigue is when the number of cycles to failure is small, typically when the number of cycles to failure, Nf is less than 103.III. RESIDUAL STRESS ON WELD Residual stresses can be defined as the stresses that remain within a material or body after manufacture and material processing in the absence of external forces or thermal gradients. They can also be produced by service loading, leading to inhomogeneous plastic deformation in the part or specimen. Residual stresses can be defined as either macro or micro stresses and both may be present in a component at any one time. They can be classified as: Macro residual stress that develop in the body of a component on a scale larger than the grain size of the material.Micro residual stresses that vary on the scale of an individual grain. I. INTRODUCTION Welding has a number of detrimental effects on the structural integrity and in-service performance of the weldments. These detrimental effects are due to imperfections induced by the welding in the weldments, of which the structural shape change behavior, residual stresses and the weld solidification cracks are reported to have very severe degrading effects on the mechanical strengths and possibly can lead to catastrophic failure.Fatigue is a type of fracture that occurs in welds that are subjected to c hanging or varying stresses over time. Fatigue is mainly caused by the environment in which the welded joints are utilized. Fatigue fracture is a ductile fracture, and therefore occurs by non-uniform plastic deformation. Micro cracks and voids form after a certain number of cycles and grow proportional to the number of cycles eventually grow large enough to overcome recovery mechanisms and move quickly to fracture. The rate of this crack nucleation is proportional to the frequency of the applied stress.II. FACTORS IN FATIGUE FAILURES Fatigue failures of welded joint are initiated by many factors, such as stress concentration, environment, loading and residual stresses. Stress concentration is mainly caused by the geometrical discontinuity and thus initiates fatigue crack at the locations of discontinuity. Stress concentration may also result from weld defects and metallurgical discontinuity. Fatigue strength of weld component may also be significantly affected by the environment, su ch as oxygen, sulfur, and temperature.In addition to the axial stresses in the piping systems reduction in fatigue life also takes place by multiaxiality of loading or stresses. Micro residual stresses that exist within a grain, essentially as a result of the presence of dislocations and other crystalline defects. IV. CAUSES OF RESIDUAL STRESS Residual stresses are generated during most manufacturing processes involving material deformation, heat treatment, machining or processing operations such as welding, machining, grinding, and rod or wire drawing etc.It is possible to classify the origin of residual stresses in the following way: 1. 2. 3. Differential plastic flow Differential cooling rates Phase transformations with volume changes are one of the main factors leading to the origination and propagation of fatigue cracks in welded elements. The residual stresses in the welded joints are formed as the result of differential contractions which occur as the weld metal solidifies an d cools to ambient temperature. In fact, welding introduces high heat input to the material being welded.As a result of this, non-uniform heat distributions, plastic deformations and phase transformations occur on the material. These changes generate different residual stresses patterns for weld region and in the heat affected zone (HAZ). Residual stresses induced by shrinkage of the molten region are usually tensile. Transformation induced residual stresses will cause more critical phase transformations. When the effect of phase transformations is dominant compressive residual stresses are formed in the transformed areas.Tensile residual stresses are detrimental to the initiation and growth of fatigue cracks. Weld fatigue failure is often particularly sensitive to residual stress due to stress concentrations induced by the weld joint geometry and weld imperfections. Welding residual stress acts as a booster to the fatigue problem. Hence, crack growth rate becomes considerably highe r in the weld vicinity compared to that far from weld. The fatigue failure mechanism in the presence of weld residual stress is not well understood and it is the intent of this project to explore this mechanism.However, to quantify the effects of welding residual stresses in the design stage, one has to numerically simulate its distribution and redistribution and possible relaxation in a structure due to cyclic loading. This requires the need for a robust, reliable and numerically efficient method for modeling residual stresses. Previous studies reveals that depending upon mean stress, stress amplitude, and stress ratio of uni axial cycle stressing and two kinds of failures ratcheting failure and fatigue failure. Figure 3.Explains the variation of ratcheting strain with stress amplitude. In which we shall see that stress increases apparently with the increase in nominal stress amplitude. It implies that the effect of nominal stress amplitude on ratcheting is more significant than me an nominal stress. The variation of mean stress with ratcheting strain is explained in figure 4. In which we shall see that ratcheting strain also has an increasing trend with the mean nominal stress up to a particular limit. V. EXPERIMENTAL TECHNIQUESWelding residual stresses are generated in a structure as a consequence of local plastic deformations introduced by local temperature history consisting of a rapid heating and subsequent cooling phase. During the welding process, the weld area is heated up sharply compare to the surrounding area and fused locally. The material expands as a result of being heated. The heat expansion is restrained by the surrounding cooler area, which gives rise to thermal stresses. The thermal stresses partly exceed the yield limit, which is lowered at elevated temperatures.Consequently, the weld area is plastically hot-compressed. After cooling down too short, too narrow or too small comparing to the surrounding area, it develops tensile residual stres s, while the surrounding areas are subjected to compressive residual stresses to maintain the self-equilibrium The distribution of residual stresses in a welded pipe is more complex, Fig. 1 shows the possible expansion and shrinkage in a butt welded pipe. In this case, shrinkage of the weld in the circumferential direction induces circumferential force, F, shearing force, Q, and bending moments, M, to the pipe.Figure. 2 shows a characteristic residual stress profile on a low carbon steel welded component. Also the distribution of residual stresses in a pipe is affected by many factors such as diameter, wall thickness of the pipe, weld geometry, and welding procedure. From the graphical plot we shall see that the maximum value of the harmful residual stress is about 360 N/mm2 (tensile stress) near the welding line and it decreases to be about 165 N/mm2 at the distance of 80 mm from the welding axis.The minimum residual stress is about 90 N/mm2 near the welding line and it becomes abo ut 60 N/mm2 in compression at the instance of about 60 mm, then it reduces to about 10 N/mm2 in tension at 80 mm distance from the axis. Such high tensile residual stresses are the result of thermoplastic deformations during the welding process and A. Sample Used The material used for the study is stainless steel material of grade SS304. The material is chosen because of its following properties. It has an excellent corrosion resistance in a wide range of atmospheric environments and many corrosive media.Considering its heat resistant property it is not suitable to use in a range of 425-860 °C if subsequent aqueous corrosion resistance is important. This material has excellent weld ability by all standard fusion methods, both with and without filler metals. Welding of 304 can be done with Grade 308 and 308L rods or electrodes (and with their high silicon equivalents). Heavy welded sections in Grade 304 may require post-weld annealing for maximum corrosion resistance. Tensile Stren gth (MPa) min 515 Yield Strength 0. 2% Proof (MPa) min 205 Elongation (% in 50mm) min 40 Rockwell B (HRB) max 92 Brinell (HB) max 201D. Finite element analysis Most of the residual stress studies were conducted based on either axi symmetric or 2D plane assumptions due to the limitations of the finite element codes and computer resources available during the time of the study. Moreover, the thermo-mechanical problem was assumed to be uncoupled where the thermal and mechanical responses were treated separately. Furthermore fatigue failure usually initiate at the stress concentration area and fatigue loading is usually not axi symmetric, and hence a two dimensional model can not simulate the fatigue failure response of weld joints accurately.In order to simulate the fatigue response of welded joints in the presence of residual stresses, it is essential to conduct a three-dimensional analysis. Figure 5. Illustrates the solid and FE model of the specimen RESULT AND DISCUSSION 3D finite e lement fatigue response analyses for a socketwelded joint were performed by using ANSYS. This is needed in order to include the calculated residual stress and strain fields as the initial stresses and strains in the fatigue analysis. A fixed boundary condition at the socket end is imposed.Same finite element mesh and the material model used in the residual stress analysis, are restricted to be used in the fatigue analysis. The following are some of the discussions we found out after the comparative experiments on Fatigue machine and computer aided simulation. High tensile residual stresses, at or above the yield stress level, exist near the weld toe area, especially at the weld start/stop location. The magnitude of the residual stresses reduces quickly as the distance from the weld toe increases. The residual stress distribution does not change much when the slip-on gap in the socket weld joint is reduced to zero.Hence, the increase in fatigue life of socket welds with no slip-on ga p is unrelated to residual stress. The improvement in fatigue life may come from the change in failure mode, which in turn, may be influenced by the change of the external load stress or strain distribution. REFERENCES [1] Guozheng Kang, Yugie Liu, and Zhao Li â€Å"Experimental study on ratchetting-fatigue interaction of SS304 stainless steel in uni-axial cyclic stressing† – International journal of Materials Science and engineering, Volume 435, 2006, Pages 396-404. N. S. Rossini, M. Dassisti , K.Y. Benyounis, A. G. Olabi â€Å"Methods of measuring residual stresses in components† International journal of Materials and Design, Volume 35, 2012, Pages 572–588. Y. Kudryavtsev and J. Kleiman â€Å"Fatigue of Welded Elements: Residual Stresses and Improvement Treatments† Integrity Testing Laboratory Inc. 80 Esna Park Drive, Units 7-9, Markham, Canada presented paper in the year 2005. Z. Barsoum â€Å"Residual stress analysis and fatigue of multi-pass welded tubular structures†International journal of Engineering Failure Analysis, Volume 15, 2008, Pages 863–874. M.Farajian-Sohi, Th Nitschke-Pagel, K â€Å"Residual stress relaxation in welded joint under static and cyclic loading† Issued from International Centre for Diffraction Data 2009 ISSN 1097-0002. Grade 304 Table. 1 Mechanical property of SS grade 304 Elastic modulus (Gpa) 193 Thermal conductivity (W/m. K) 16. 2 Specific heat (J/kg. K) 500 Electrical resistivity (ohm) 720 Grade Density (kg/m3) 304 8000 Table. 2 Physical property of SS grade 304 B. Stainless steel welding Methods There are three methods of stainless steel welding which are preferred over the rest.Metal Inert Gas (MIG) welding, Tungsten Inert Gas (TIG) welding, and Shielded Metal Arc Welding (SMAW). Stainless steel welding requires a bit more finesse than welding mild steel or aluminum, because heat is an enemy in this process. Also the fumes made from any of these processes are very harmf ul, and great care must be taken to avoid breathing them. TIG welding utilizes a tungsten welding electrode, a filler metal rod and an inert gas to shield the weld. This welding method requires little or no post-weld finishing. The tungsten tip in the welding torch is touched to the material to be welded.This creates an arc that the welder dips the filler metal rod into and allows it to melt into the welding puddle. The shielding gas prevents contamination from entering the weld and allows the weld to flow out smoothly. Heat is controlled through a foot switch. So the suggested welding method is TIG welding. C. Fatigue test Butt welded piping joints were tested in a cantilever setup. In these test the welded joint to be tested is located near the heavy and stiff support column. The fatigue loading cycle is applied to the other end of the pipe using the actuator of a servo- hydraulic testing machine through a pin end fixture setup.The pin end fixture consists of a self-aligning ball bearing and a pin, which is snugly fitted to the ball bearing and tightly attached to the end fixture. One of the pin end fixtures is tightly screwed to the actuator rod and the other welded to the specimen. [2] [3] [4] [5] [6] D. Akbari, I. Sattari-Far Faculty of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran â€Å"Effect of the welding heat input on residual stresses in butt-welds of dissimilar pipe joints† International Journal of Pressure Vessels and Piping, Volume 86, 2009, Pages 769–776. [7] B. Brickstad, B. L.Josefson â€Å"A parametric study of residual stresses in multi-pass butt-welded stainless steel pipes† International Journal of Pressure Vessels and Piping, Volume 75, 1998, Pages 11-25. Figure 3. Relation between ratcheting strain with stress amplitude Figure 4. Relation between ratcheting strain with Mean stress Figure 1. Distribution of longitudinal fillet weld Residual stress on a butt welded pipe Figure 5. Solid model (a) and FE model (b) of welded pipe Figure 2. Distribution of longitudinal fillet weld on a carbon steel welded component Axial residual tress distribution in a buttwelded joint

Human resource management Essay

To establish the role of Performance Management in controlling and developing employees it is imperative to understand the definition of Performance Management and its evolution. Evolution Performance Management is relatively a new concept, which has developed tremendously since the last two decades. As per CIPD (2009) Performance Management has been around in the language of HR and people management since the 1980’s. The above point is also mentioned by Williams R, (1998) stating that Performance Management came into prominence in the late 1980s/ early  1990s. â€Å"The term performance management was first used in the 1970’s but it did not become a recognised process until the latter half of 1980s† (Armstrong, 2009). Thorpe, (2004) states that ‘Performance management as an identifiable subject for academic study and research arguably began in the mid-1990’s’ Performance Management has evolved over the years from performance appraisal systems into a more holistic approach. As per Bach, (2005) â€Å"With the increased recognition of the problems that permeate many company appraisal schemes, there has been a shift of emphasis from performance appraisal to performance management† (p290). â€Å"The reality of contemporary performance management practice is probably best seen as ‘a logical progression in the history of the development of appraisal systems’† (Lundy and Cowling, 1996, p307). Definitions ‘The essence of Performance management is establishing a framework in which performance by human resources can be directed, monitored, motivated and refined; and the links in the cycle can be audited’ (Clark, 2005) As per Armstrong and Barron, (2009) Performance management is ‘A process which contributes to the effective management of individuals and teams in order to achieve high levels of organisational performance’ (cited in CIPD 2012). ‘Performance management encompasses activities such as joint goal-setting, continuous progress review and frequent communication, feedback and coaching for improved performance, implementation of employee-development programs and rewarding achievements. It can be regarded as a systematic process by which the overall performance of an organisation can be improved by improving the performance of individuals within a team framework’ (Drum, 2005) ‘Performance management is the process of creating a work environment in which people can perform to the best of their abilities. It is a whole work system that begins when a job is defined as needed and expectations are clearly communicated to the employee’ (Den Hartlog et al. , 2004) The role of Performance Management in both controlling and developing employees: Beamon, 1999, argues that, ‘Despite the increasing focus on collaboration between enterprises from one side, existing studies in the area of performance management still narrowly look at the single enterprise and its â€Å"within-enterprise† process and people ‘(cited in Busi and Bititci, 2006). The literature review brings up some interesting common themes and issues that run through the existing literature, research and definitions of performance management. These common themes will focus on features of performance management and its application in an organisation. Performance Management versus Performance Appraisal Although Performance Management evolved from performance appraisals few decades ago, most literature still intensely focuses on performance appraisals when addressing performance management. CIPD (2012) ‘While performance appraisal is an important part of performance management, in itself it is not performance management: rather, it is one of the range of tools that can be used to manage performance. However, it is a common mistake to assume that if organizations implement performance appraisals, they have performance management. Performance management is a holistic process bringing together many activities that collectively contribute to the effective management of individuals and teams in order to achieve high levels of organizational performance. The process is strategic, in that it is about broader issues and long-term goals, and integrated in that it links various aspects of the business, people management, individuals and teams. Performance appraisal on the other hand is operational, short- to medium-term and concerned only with individual employees and their performance and development. While it is one of the tools of performance management, and the data produced can feed into other elements of performance management, appraisal by itself does not constitute performance management’. Bach (2009) also states the difference between performance management and performance appraisal, ‘Advocates of performance management claim that its value resides in the cycle of integrated activities, which ensure that a systematic link is established between the contribution of each employee and the overall performance of the organisation. This strategic approach contrasts with the free standing nature of performance appraisals, in which the outcomes of each individual appraisal are rarely linked to overall corporate objectives’ (p291). However, CIPD (2005) Survey report demonstrates that, the practice of performance management still largely revolves around objective setting and appraisal. The confusion and overlapping in organizations between performance appraisals and performance management is evident form the above literature and surveys, however it still acts as a good tool for managers to control and develop employees. Performance management is a cycle, an on-going process Performance management is a cycle and for it to deliver desired results, it needs to be an on-going process. Conventionally, Performance management is portrayed as a three-stage cycle involving performance planning, monitoring and review (Armstrong and baron, 2005) The Performance management cycle CIPD (2012) also states ‘Performance management is a process, not an event, it operates as a continuous cycle’. Clark (2005) in his definition of Performance management also refers performance management as a cycle ‘The essence of Performance management is establishing a framework in which performance by human resources can be directed, monitored, motivated and refined; and the links in the cycle can be audited’. CIPD Discussion paper (2009) mentions that using a survey and a number of practice-based case studies, this work concluded that performance management was most likely to be viewed as a continuous process rather than an annual activity. Porter et al (2012) states that, ‘Performance management is not an independent activity; it is in fact a series of processes supporting different elements of effective people management. Performance therefore needs to be placed very firmly in a management context’ (p 140).

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