Theories of Justice Essay Example for Free

Theories of Justice Essay Theory of Justice is a work of political philosophy and ethics by John Rawls. It was originally published in 1971 and revised in both 1975 (for the translated editions) and 1999. In A Theory of Justice, Rawls attempts to solve the problem of distributive justice (the socially just distribution of goods in a society) by utilising a variant of the familiar device of the social contract. The resultant theory is known as Justice as Fairness, from which Rawls derives his two principles of justice: the liberty principle and the difference principle. Objective In A Theory of Justice, Rawls argues for a principled reconciliation of liberty and equality. Central to this effort is an account of the circumstances of justice, inspired by David Hume, and a fair choice situation for parties facing such circumstances, similar to some of Immanuel Kants views. Principles of justice are sought to guide the conduct of the parties. These parties are recognized to face moderate scarcity, and they are neither naturally altruistic nor purely egoistic. They have ends which they seek to advance, but prefer to advance them through cooperation with others on mutually acceptable terms. Rawls offers a model of a fair choice situation (the original position with its veil of ignorance) within which parties would hypothetically choose mutually acceptable principles of justice. Under such constraints, Rawls believes that parties would find his favoured principles of justice to be especially attractive, winning out over varied alternatives, including utilitarian and right-libertarian accounts. A society, according to Utilitarianism, is just to the extent that its laws and institutions are such as to promote the greatest overall or average happiness of its members. How do we determine the aggregate, or overall, happiness of the members of a society? This would seem to present a real problem. For happiness is not, like temperature or weight, directly measurable by any means that we have available. So utilitarians must approach the matter indirectly. They will have to rely on indirect measures, in other words. What would these be, and how can they be identified? The raditional idea at this point is to rely upon (a) a theory of the human good (i. e. , of what is good for human beings, of what is required for them to flourish) and (b) an account of the social conditions and forms of organization essential to the realization of that good. People, of course, do not agree on what kind of life would be the most desirable. Intellectuals, artists, ministers, politicians, corporate bu reaucrats, financiers, soldiers, athletes, salespersons, workers: all these different types of people, and more besides, will certainly not agree completely on what is a happy, satisfying, or desirable life. Very likely they will disagree on some quite important points. All is not lost, however. For there may yet be substantial agreementenough, anyway, for the purposes of a theory of justice about the general conditions requisite to human flourishing in all these otherwise disparate kinds of life. First of all there are at minimum certain basic needs that must be satisfied in any desirable kind of life. Basic needs, says James Sterba, are those needs that must be satisfied in order not to seriously endanger a persons mental or physical well-being. Basic needs, if not satisfied, lead to lacks and deficiencies with respect to a standard of mental and physical well-being. A persons needs for food, shelter, medical care, protection, companionship, and self-development are, at least in part, needs of this sort. [Sterba, Contemporary Social and Political Philosophy (Belmont, CA: Wadsworth Publishing Co. , 1995). A basic-needs minimum, then, is the minimum wherewithal required for a person to m eet his or her basic needs. Such needs are universal. People will be alike in having such needs, however much they diverge in regard to the other needs, desires, or ends that they may have. We may develop this common ground further by resorting to some of Aristotles ideas on this question of the nature of a happy and satisfying life. Aristotle holds that humans are rational beings and that a human life is essentially rational activity, by which he means that human beings live their lives by making choices on the basis of reasons and then acting on those choices. All reasoning about what to do proceeds from premises relating to the agents beliefs and desires. Desire is the motive for action and the practical syllogism (Aristotles label for the reasoning by which people decide what to do) is its translation into choice. Your choices are dictated by your beliefs and desiresprovided you are rational. Such choices, the reasoning that leads to them, and the actions that result from them are what Aristotle chiefly means by the sort of rational activity that makes up a human life. We may fairly sum up this point of view by saying that people are rational end-choosers. If Aristotle is at all on the right track, then it is clear that a basic-needs minimum is a prerequisite to any desirable kind of life, and further that to live a desirable kind of life a person must be free to determine his or her own ends and have the wherewithalthe means, the opportunitiesto have a realistic chance of achieving those ends. (Some of these Aristotelian points are perhaps implicitly included in Sterbas list of basic needs, under the head of self-development. ) So w hat does all this do for Utilitarianism? Quite a lot. We have filled in some of item (a) above: the theory of the human good, the general conditions essential to a happy or desirable life. The Utilitarian may plausibly claim to be trying to promote the overall happiness of people in his society, therefore, when he tries to improve such things as rate of employment, per capita income, distribution of wealth and opportunity, the amount of leisure, general availability and level of education, poverty rates, social mobility, and the like. The justification for thinking these things relevant should be pretty plain. They are measures of the amount and the distribution of the means and opportunities by which people can realize their various conception of a desirable life. With these things clearly in mind the Utilitarian is in a position to argue about item (b), the sorts of social arrangements that will deliver the means and opportunities for people to achieve their conception of a desirable life. John Stuart Mill, one of the three most important 19th century Utilitarians (the other two were Jeremy Bentham and Henry Sidgwick), argued that freedom or liberty, both political and economic, were indispensable requisites for happiness. Basing his view upon much the same interpretation of human beings and human life as Aristotle, Mill argued that democracy and the basic political libertiesfreedom of speech (and the press), of assembly, of worshipwere essential to the happiness of rational end-choosers; for without them they would be prevented from effectively pursuing their own conception of a good and satisfying life. Similarly he argued that some degree of economic prosperitywealthwas indispensable to having a realistic chance of living such a life, of realizing ones ends. So, ccording to Utilitarianism, the just society should be so organized in its institutionsits government, its laws, and its economythat as many people as possible shall have the means and opportunity to achieve their chosen conception of a desirable life. To reform the institutions of ones society toward this goal, in the utilitarian view, is to pursue greater justice. In the 19th century utilitarians often argued for a laissez faire capitalist economy. More recently some of them have argued for a mixed economy, i. e. , a state regulated market system. Mill, interestingly, argued at the beginning of the 19th century for an unregulated capitalist economy, but at the end argued for a socialist economy (which is not the same thing as a mixed economy). (3) The protection of the sorts of liberties that were guaranteed in the United States  Ã‚   by the Bill of Rights in our Constitution. (4) Democratic forms of government generally. The utilitarian rationale for each of these institutional arrangements should be fairly obvious, but it would probably contribute significantly to our understanding of utilitarianism to review, in more detail, some utilitarian arguments for (2) free market capitalism. This we shall do later, in the next section. Three Theories of Justice: Utilitarianism, Justice as Fairness, and Libertarianism (1) Utilitarianism A society, according to Utilitarianism, is just to the extent that its laws and institutions are such as to promote the greatest overall or average happiness of its members. How do we determine the aggregate, or overall, happiness of the members of a society? This would seem to present a real problem. For happiness is not, like temperature or weight, directly measurable by any means that we have available. So utilitarians must approach the matter indirectly. They will have to rely on indirect measures, in other words. What would these be, and how can they be identified? The traditional idea at this point is to rely upon (a) a theory of the human good (i. e. of what is good for human beings, of what is required for them to flourish) and (b) an account of the social conditions and forms of organization essential to the realization of that good. People, of course, do not agree on what kind of life would be the most desirable. Intellectuals, artists, ministers, politicians, corporate bureaucrats, financiers, soldiers, athletes, salespersons, workers: all these different types of people, and more besides, will certainly not agree completely on what is a happy , satisfying, or desirable life. Very likely they will disagree on some quite important points. All is not lost, however. For there may yet be substantial agreementenough, anyway, for the purposes of a theory of justice about the general conditions requisite to human flourishing in all these otherwise disparate kinds of life. First of all there are at minimum certain basic needs that must be satisfied in any desirable kind of life. Basic needs, says James Sterba, are those needs that must be satisfied in order not to seriously endanger a persons mental or physical well-being. Basic needs, if not satisfied, lead to lacks and deficiencies with respect to a standard of mental and physical well-being. A persons needs for food, shelter, medical care, protection, companionship, and self-development are, at least in part, needs of this sort. [Sterba, Contemporary Social and Political Philosophy (Belmont, CA: Wadsworth Publishing Co. , 1995). A basic-needs minimum, then, is the minimum wherewithal required for a person to m eet his or her basic needs. Such needs are universal. People will be alike in having such needs, however much they diverge in regard to the other needs, desires, or ends that they may have. We may develop this common ground further by resorting to some of Aristotles ideas on this question of the nature of a happy and satisfying life. Aristotle holds that humans are rational beings and that a human life is essentially rational activity, by which he means that human beings live their lives by making choices on the basis of reasons and then acting on those choices. All reasoning about what to do proceeds from premises relating to the agents beliefs and desires. Desire is the motive for action and the practical syllogism (Aristotles label for the reasoning by which people decide what to do) is its translation into choice. Your choices are dictated by your beliefs and desiresprovided you are rational. Such choices, the reasoning that leads to them, and the actions that result from them are what Aristotle chiefly means by the sort of rational activity that makes up a human life. We may fairly sum up this point of view by saying that people are rational end-choosers. If Aristotle is at all on the right track, then it is clear that a basic-needs minimum is a prerequisite to any desirable kind of life, and further that to live a desirable kind of life a person must be free to determine his or her own ends and have the wherewithalthe means, the opportunitiesto have a realistic chance of achieving those ends. (Some of these Aristotelian points are perhaps implicitly included in Sterbas list of basic needs, under the head of self-development. ) So w hat does all this do for Utilitarianism? Quite a lot. We have filled in some of item (a) above: the theory of the human good, the general conditions essential to a happy or desirable life. The Utilitarian may plausibly claim to be trying to promote the overall happiness of people in his society, therefore, when he tries to improve such things as rate of employment, per capita income, distribution of wealth and opportunity, the amount of leisure, general availability and level of education, poverty rates, social mobility, and the like. The justification for thinking these things relevant should be pretty plain. They are measures of the amount and the distribution of the means and opportunities by which people can realize their various conception of a desirable life. With these things clearly in mind the Utilitarian is in a position to argue about item (b), the sorts of social arrangements that will deliver the means and opportunities for people to achieve their conception of a desirable life. John Stuart Mill, one of the three most important 19th century Utilitarians (the other two were Jeremy Bentham and Henry Sidgwick), argued that freedom or liberty, both political and economic, were indispensable requisites for happiness. Basing his view upon much the same interpretation of human beings and human life as Aristotle, Mill argued that democracy and the basic political libertiesfreedom of speech (and the press), of assembly, of worshipwere essential to the happiness of rational end-choosers; for without them they would be prevented from effectively pursuing their own conception of a good and satisfying life. Similarly he argued that some degree of economic prosperitywealthwas indispensable to having a realistic chance of living such a life, of realizing ones ends. So, ccording to Utilitarianism, the just society should be so organized in its institutionsits government, its laws, and its economythat as many people as possible shall have the means and opportunity to achieve their chosen conception of a desirable life. To reform the institutions of ones society toward this goal, in the utilitarian view, is to pursue greater justice. In the 19th century utilitarians often argued for a laissez faire capitalist economy. More recently some of them have argued for a mixed economy, i. e. , a state regulated market system. Mill, interestingly, argued at the beginning of the 19th century for an unregulated capitalist economy, but at the end argued for a socialist economy (which is not the same thing as a mixed economy). (3) The protection of the sorts of liberties that were guaranteed in the United States  Ã‚   by the Bill of Rights in our Constitution. (4) Democratic forms of government generally. The utilitarian rationale for each of these institutional arrangements should be fairly obvious, but it would probably contribute significantly to our understanding of utilitarianism to review, in more detail, some utilitarian arguments for (2) free market capitalism. This we shall do later, in the next section. What do you think a Utilitarian would say about universal medical care? Would he or she be for it or against it? What about affirmative action programs, anti-hate crime legislation, welfare, a graduated income tax, anti-trust laws? For or against? What would decide the issue for a utilitarian? (2) Utilitarianism and Competitive Capitalism The key claim about market capitalism for the utilitarian is that free, unregulated markets efficiently allocate resourceschiefly labor and capitalin the production of goods. By a market is meant only any pattern of economic activity in which buyers do business with sellers. In the classical system of economics competition is presupposed among producers or sellers. Toward the end of the nineteenth century writers began to make explicit hat competition required that there be a considerable number of sellers in any trade or industry in informed communication with each other. In more recent times this has been crystallized into the notion of many sellers doing business with many buyers. Each is well informed as to the prices at which others are selling and buyingthere is a going price of which everyone is aware. Most important of all, no buyer or seller is large enough to control or exercise an appreciable influence on the common price. The notion of efficiency as applied to an economic system is many-sided. It can be viewed merely as a matter of getting the most for the least. There is also the problem of getting the particular things that are wanted by the community in the particular amounts in which they are wanted. In addition, if an economy is to be efficient some reasonably full use must be made of the available, or at least the willing, labor supply. There must be some satisfactory allocation of resources between present and future productionbetween what is produced for consumption and what is invested in new plant and processes to enlarge future consumption. There must also be appropriate incentive to change; the adoption of new and more efficient methods of production must be encouraged. Finallya somewhat different requirement and one that went long unrecognizedthere must be adequate provision for the research and technological development which brings new methods and new products into existence. All this makes a large bill of requirements. Rawlss Theory of Justice as Fairness The reformulation of Utilitarianism we just saw comes from John Rawls, who did not present it as a version of Utilitarianism at all. He presented it as a first approximation to a quite distinct conception of justice from Utilitarianism, a conception that he calls Justice as Fairness. I presented Rawlss idea as a reformulation of Utilitarianism, anyway, because it seems to me to be greatly clarifying of whats wrong with Utilitarianism to have an alternative to compare it to, an alternative that blocks the kinds of fairness objections that are typically raised against Utilitarianism. In Utilitarianism everyone, in a way, is given equal consideration at the outset inasmuch as everyones happiness is taken into consideration and is given the same weight in the reasoning by which a form of social organization is settled on as the one that, in the circumstances, yields the greatest average utility. But, as we saw, Utilitarianism may in some circumstances settle on a form of social organization that treats some people unfairly, by imposing undue burdens on them for the sake of the greater average utility or happiness of the whole social group. In the light of this fact it is reasonable to conclude that something is wrong with the Utilitarian procedure for weighing the interests of the individual members of the social group in deciding on what forms of social organization best serve those interests. The procedure puts individuals at and undesirable and unfair risk of being sacrificed for the overall social good. In the principle that we suggested as a revision of Utilitarianism, people would not be put at quite the same risk. Rawls in fact argues for a more elaborate principle of justice in social organization, one that we havent seen yet, and he does so by employing a hypothetical model of a situation requiring people to choose the fundamental principles by which the basic institutions of their society are to be evaluated and organized. He argues that in the hypothetical conditions under which the choice of principles is to be made, only fair or just principles can be chosen. He argues that this is so because of the hypothetical conditions he imposes on the situation of the people making the choice. Then he argues that under those conditions people would choose the following conjunction of principles: The Equal Liberty Principle: Each person is to have the maximum civil liberties compatible with the same liberty for all. The Difference Principle: Inequalities are permissible only if (a) they can be expected to work to everyones advantage, especially to the advantage of the least well off, and (b) the positions, offices, roles, to which the inequalities attach are open to all under conditions of fair equality of opportunity. Libertarianism The Libertarianism, as the name suggests, emphasizes individual liberty as the central and indeed exclusive concern of social justice. A just society, according to the Libertarian, must grant and protect the liberty or freedom of each individual to pursue his desired ends. In the Libertarian view people are essentially rational end-choosers, to use our earlier term, and the kind of life appropriate to rational end-choosers requires them to be free to choose their own ends and free to pursue them without interference from others. This may seem to imply that the Libertarian holds that everyone should be able to do whatever he or she wants, but really the Libertarian holds no such view. The Libertarian view is that each person should have the same freedom to pursue his chosen ends, that each is therefore obligated to refrain from interfering with others in their freedom to pursue their ends, and that the function of the state is solely to protect each individuals freedom to pursue his chosen ends. The Libertarian therefore conceives of everyone as having certain rights, which protect his or her liberty to pursue a desirable kind of life. What is distinctive about Libertarianism is its conception of the rights that each individual has. The libertarian philosopher John Hospers states the fundamental libertarian principle in a variety of ways that it may clarify the Libertarian view to repeat here. He says (in The Libertarian Manifesto, reprinted in Justice: Alternative Political Perspectives, edited by James P. Sterba, Third Edition (Belmont, CA: Wadsworth Publishing Company, 1999), pp. 24, 25): [E]very person is the owner of his own life[;] no one is the owner of any one elses life,  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   and consequently every human being has the right to act in accordance with his own choices, unless those actions infringe on the equal liberty of other human beings to act in accordance with their choices No one is anyone elses master and no one is anyone elses slave. Other mens lives are not yours to dispose of. The rights recognized by the Libertarian include all the rights we called civil or personal liberties in our discussion of Rawls, but in regard to property the Libertarian favors a scheme in which each person has a quite unrestricted right to acquire property, including full capitalist rights to acquire ownership of the means of production and full rights of bequeathal. Libertarians emphasize property rights as essential to the liberty essential to the life of a rational end-chooser. Property does not mean only real estate; it includes anything that you can call your ownclothing, your car, your jewelry, your books and papers. The right of property is not the right to just take it from others, for this would interfere with their property rights. It is rather the right to work for it, to obtain non-coercively the money or services which you can present in voluntary exchanges.

Future Career Essay Example for Free

Future Career Essay When i think about a future career for myself, i see myself doing it for a very long time. In my imagination i picture myself as a millitary special forces officer. I have always wanted to go into the military since i was a little boy. The first time i ever heard about the green berets or the navy seals i knew that was what i wanted to do. I was told that being in the special forces was a very hard, but honorable career. You have to be very tough physically and mentally. My favorite thing about the special forces teams were that they are allowed to access the worlds latest technology and would go on top secret missions and save tons of people and no one would even know that the event had happened. The military today is a lot different than it was when I was a little kid. Karl von Clausewitz defined war as an act of violence intended to compel our opponent to fulfill our will In order to attain this object fully, the enemy must be disarmed, and disarmament becomes therefore the immediate object of hostility. In the future, we will have the prospective to make war without the use of violence and fulfill the second half of von Clausewitzs definition with software alone. Cyber describes systems that use mechanical or electronic systems to swap human control. Cyber warfare can be executed without violence and therefore the reliance on software intensive systems-cyber systems can make nations exposed to warfare without violence. With the escalating use of computers in military and government, there has been a growing awareness of both a new susceptibility in national infrastructure and a new method of attacking ones enemies. Cyber Warfare could mean winning wars without firing shots, the shutting down of entire national infrastructures at the push of a button, and the complete exploitation or destruction of an enemys communication networks. It could mean threats from across the world by states with no ability to launch a conventional attack just by using cheap laptops. In conclusion nations and their critical infrastructures are becoming increasingly dependent on computer networks for their operation. Also as armies around the world are transforming fr om a platform centric to a network centric force there is increasing reliance on networking technology. With all the advantages of such connectivity come unprecedented challenges to network security. Today we have unmanned aerial vehicle (UAV), commonly known as drones, is an aircraft without a human pilot aboard. Its flight is controlled either autonomously by onboard computers or by the  remote control of a pilot on the ground or in another vehicle. It allows us to keep soldiers lives safe it were to go down. Putting drones together with the futures technology create a new idea of a drone. In the future computers will become more intelligent and will be able to decide answers in situations. Putting a computer like that into a drone will create a weapon of mass destruction. The drone will be able to make lethal decisions without the command of a human. Within the next ten years our drones will become a lot more technologically advanced. Soon the drones will be able to choose and make lethal decisions by itself without the command or control of a human. The military has access to the Military Imaging and Surveillance Technology. The Military Imaging and Surveillance Technology (MIST) program can develop a fundamentally new optical capability that can provide high-resolution 3-D images to locate and identify a target at much longer ranges than is possible with existing surveillance systems. Within the next decade our surveillance will be so technologically advanced that the military will be able to look up anyone in the world and pinpoint their exact location and view what kind of activities they are participating in. Joining the military will be tough trying to keep up with todays expectations in intelligence and technology. But getting to be able to live my dream and do what I have always wanted to do with allow me to strive to accomplish whatever means necessary.

Monte Carlo Simulation of Transmission Experiement

Monte Carlo Simulation of Transmission Experiement Fluid Densitometer Design based on Transmission and Scattering Gamma Ray Method using Monte Carlo Approach R.Wirawan, M. Djamal, A.Waris, G. Handayani,  H.J. Kim Abstract. Non-destructive testing is one method in the material testing that was applied and developed for many purposes in the industrial field. Gamma spectrometer is a one method that can be applied for the fluid densitometer. It was studied the potential of the use of transmission and scattering gamma ray measurements in order to evaluate the fluid density using GEANT4 Monte Carlo simulation toolkit. Keywords: Non-destructive testing, scattering gamma, Monte Carlo, GEANT4. PACS: 29.40.-n Introduction Gamma-ray spectrum measurement is one of promising developing method in the non-destructive test application especially for an online measurement. It’s applicable for many industrial applications such as in medical, mining and oil industry, homeland security. The quality of the material can be differentiating from another one based on its density. In the application of gamma spectrometry, it’s influence the gamma ray energies spectrum detection result. Ball et al. (1998) have investigated the response of gamma backscatter to the spatial density in bulk sample [1]. In the fluid product analysis especially for the oil product density measurement, it’s a promising method for a densitometer. Hussein (2011) has developed investigation of the fluid flow in the pipe using gamma spectrometry [2]. Khorsandi and Feghhi have analyzed the transmission mode in densitometer application for the petroleum products monitoring applications [3]. The combination of transmission and scattering measurement modes are good approaching for a better analysis method in the detector response measurement due to the fluid density inside the pipe. For this purpose, simulation using Monte Carlo method can be conducted. Monte Carlo methods have capabilities in the implementation of the several of physics models and give the predicting result in the radiation physics application [4, 5]. In the present study we investigated the potential of the combination of these measurements using the Monte Carlo radiation transport from GEANT4 simulation toolkit. Theory Gamma ray energy spectrum characteristic that detected from its interaction with the material have information to identify the material characteristics involved. In the gamma ray spectrum measurement, there are two kinds of measurement type i.e. transmission and scattering. In the transmission, the gamma ray beams have an attenuated intensity because of energy absorption by material. The mass attenuation coefficient à ¯Ã‚ Ã‚ ­ of photon is a function of photon energy. The attenuated intensity was described by the Beer–Lambert formula: (1) where I0 incident gamma rays intensities, x is material absorption thickness, is mass absorption coeficient and its proportional to the total cross-section as follows , NA is the Avogadro’s number (6.021023 atom/mole) and A is atomic mass number of material[8]. For the scattering measurement, the detected photon beam is the result of deflecting with an electrons material. Scattering interactions that may occur is the single scattering or multiple scattering.The photon beam intensity has attenuation in the path before the scattering point interaction and in the path to the detector after the scattering point interaction. Figure 1 shows the single scattering interaction of photon with an element volume dV. Figure 1 Schematic diagram of photon single scattering interaction with an element volume in the material (adopted from Devlin and Taylor) [9]. According to the Compton scattering interaction, the photon with an energy Eà ¯Ã‚ Ã‚ § will be deflected with scattering angles à ¯Ã‚ Ã‚ ± to the origin direction after collision with an atomic electron. The scattered photon energy (EScatt) is expressed by the formula: (2) The intensity of detected gamma photon are influence of attenuation along primary photon, number of electron in element volume, differential cross-section, attenuation of scattered photon path and the solid angle subtended by detector at the element volume. For the single scattering interaction, the intensity of detected photon as depicted in the formula: (3) where S is the source activity (photon s-1), dV is element volume interaction, n is the electron density of the material, r1 and r2 are the length path of the primary photon before interaction and after scattering respectively. The density à ¯Ã‚ Ã‚ ² of the material is related to the electron density by (4) where NA is the Avogadro number, Z is the atomic number and M is the atomic mass. For the Compton interaction probabilities of the photon beam when it interact with an electron of the material was describe in differential form by Klein-Nishina formula, (5) where r0 is clasical electron radius (2,82 fm) and P parameter as function of incident photon energy and scattering angles à ¯Ã‚ Ã‚ ± as the formula (6) where constant [1,8]. Using the equation (4) and (5) to substitute parameter n and in the equation (3), we have the relation of intensity with the material density: (7) Solution of the equation (7) can be expressed in the simple form: (8) where A and B are constant. Method The simulation setup was developed based on the transmission configuration which conducted experimentally done by Khorsandi [3]. Four detectors are placed in two type positions where two detectors in the same side with source and two others in the opposite site as shown in Figure 2. The spatial distance between two detector d10 and d30 from the collimated source axis are about axis 27.5cm. For detector d20 is placed 20 cm far away from detector d10. Polyethylene pipe have an inner radius 5cm and thickness it’s about 2mm. Fluids under investigation inside the pipe (i.e. gasoline, gasoil and water) are assumed to be of uniform densityà ¯Ã‚ Ã‚ ². A disk gamma ray source model is used for Cs-137 source is collimated by the cylinder shielding lead with 5cm thickness. The 3in. x 3in. NaI(Tl) detector model reconstruction in the simulation is adopted from references [6, 7]. Simulation based on GEANT4 Penelope Monte Carlo using 5.0 x 107 of the gamma source beamon. Figure 2 Schematic visualization of GEANT4 simulation for the transmission and scattering measurements setup. Result and Discussion To examine the response function of transmission and scattering measurement, firstly we need to consider the setup designed for the detector construction according to the c gamma source energy spectrum. The Cesium 137 source was placed in front of the Pb collimated NaI(Tl) 3 in. x 3 in. scintillation detector. Figure 3 shows the detector response function spectrum of GEANT4 simulation result comparing to the measurement result of the 15uCi gamma source. There are a good agreement for photopeak energy between the simulation result and the experiment result. Figure 3 Response function of Cs137 15uCi gamma source for 3 in. x 3 in NaI(Tl) detector. Based on detector construction setup, then we analyzes the detector response function of transmission and scattering measurement. Figure 4 shows the response function result of detector that placed in the four different positions for three different type of density fluid i.e. gasoline, gasoil and water. Figure 4 Response function of detector NaI(Tl) 3in. x 3in. from GEANT4 simulation of four different detector positions for gasoline, gasoil and water fluids in pipe. In the all energy spectrum distribution above, density of fluid matter give an effect to the gamma energies spectrum. The gasoline has a lower density number, but it shows a higher intensity (number of events) of gamma ray energy detected compare to the gasoil and water. The increased density of fluid will increased the number of electrons at the scattering point interaction, attenuation of primary and scattered photons. So, it’s give an effect to the decreasing intensity or peak energy spectrum that detected by the detector. For transmission mode as shown at d0 detector position, the main peak of Cesium 137 gamma source is in the 0.662 MeV. The normalize peak intensity shows that the GEANT4 simulations result have a good agreement to the Khorsandi (2011) experiment result as shown in Figure 5. This result shows that the model can be used for predicting the fluid densitometer experiment. Figure 5 Normalize intensity curve of transmission mode (d0 detector position) from simulation and experiment results. Here in the Figure 6(a), we have the same trends that the decreasing of the photopeak height due to the fluids density increase. Figure 6 Gaussian height curves of photopeak at four different detector positions. Based on the intensity as density function equation (8), the proposed constant A and B for the curve fit in the Figure 6(a) are depicted in Table 1. Table 1. Curve fitting constant Based on the B constant of the four normalize count rates curves, d20 detector position have a higher decreasing slope than the others. In other side, the number of entry photon to the detector d20 position is too small, so for this configuration its need the higher activity source. Conclusions In this study, a Monte Carlo simulation of transmission and scattering measurements of gamma ray for the fluid densitometer was carried out using GEANT4. Due to an increase in the fluid density in the pipe, the peak heights of detected gamma ray intensity have decreased. The simulations for the gamma ray transmission investigation were conducted according to the experiment setup give the best fit curve result. Acknowledgments The author acknowledges the financial support of Directorate General of Indonesian Higher Education through the Sandwich-Like (PKPI) Program 2013. Refference [1] A.J. Ball, C.J. Solomon, J.C. Zarnecki, The response of gamma backscatter density gauges to spatial inhomogeneity An extension of the single scattering model, Nuclear Instruments and Methods in Physics Research B 140 (1998) 449-462. [2] Nagy M. Hussein, Investigation of Fluid Flow using Gamma Spectroscopy, World Academy of Science, Engineering and Technology 80 2011 1169-1174. [3] M. Khorsandi, S.A.H. Feghhi, Design and reconstruction of a prototype gamma-ray densitometer for petroleum products monitoring applications, Measurement 44 (2011) 1512-1515. [4] U.A. Tarim, E.N. Ozmutlu, O. Gurler, S. Yalcin, The Effect of the Housing Material on NaI(Tl) detector response function, J. Radioanalytical and Nucl. Chem. DOI 10.1007/s10967-012-1716-z (2012) 1-5. [5] A.F. Bielajew, Fundamentals of the Monte Carlo method for neutral and charged particle transport, Department of Nuclear Engineering and Radiological Sciences, The University of Michigan, 2001, pp.1-10. [6] Hu-Xia Shi, Bo-Xian Chen, Ti-Zhu Li, Di Yun: Precise Monte Carlo simulation of gamma-ray response functions for an NaI(Tl) detector, Applied Radiation and Isotopes 57 (2002) 517–524. [7] Abd-Elzaher, M., Badawi, M. S, El-Khatib, A. and Thabet, A. A.: Determination of Full Energy Peak Efficiency of NaI(Tl) Detector Depending on Efficiency Transfer Principle for Conversion From Experimental Values, World Journal of Nuclear Science and Technology, (2012), pp. 65-72. [8] Knoll, G.F., Radiation Detection and Measurement (Second Edition), Wiley and Sons, New York, 1989. [9] G. Devlin, D. Taylor: The Spatial Response Pattern of Gamma Backscatter Density Gauges, Journal of Soil Sciences Vol. 21 No. 2 (1970), pp. 297-303.

Case Management Essay -- BUsiness, Insurance Companies, Clients

The focus of this paper is case management. Case management has evolved into a diverse profession which includes many disciplines and is exercised in many settings. Case management involves the process of coordinating multiple services on behalf of clients and has been practiced now for several decades. Many disciplines have engaged in case management and identify themselves as case managers. Case managers work with many populations and settings and play an important role in today’s society. The following analysis explores how case management developed, how it is defined, its components, and how it relates to other nursing care delivery models. All these aspects are reviewed with the purpose to show the importance of case management in the health care organization. Case Management Case management has become the standard method of managing health care delivery organizations today. In recent decades, case management has become widespread throughout healthcare areas, professionals, and models in the United States; and has been extended to a wide range of clients (Park & Huber, 2009). Regardless of the setting, case management ensures that care is oriented to the client, while controlling costs at the same time. Case management delivers quality care to patients in the most cost effective approach by managing human and material resources. Client advocacy is a strong underlying theme for all case management activities. Case managers share the same goals and standards of practice, but are multidisciplinary and have diverse academic educational backgrounds and work environments (Park & Huber, 2009). The need for case management and case managers continue to increase as new service needs, and populations are recognized.... ...jured, chronically ill, and high cost cases (Jacob & Cherry, 2007). Conclusion Only within recent decades case management has been introduced, but has been proven to be a significant segment of the healthcare workforce today. There have been several changes to case management over the last few decades, and the future for case management is very diverse. Case management offers many benefits to both the client and the health care organization. In addition, case management plays a key role in a client’s road to recovery. Most importantly, case managers have a vital role overseeing their client’s transition from the hospital setting back into the community and ensuring all service needs are met. Moreover, the opportunities and need for case managers working with many populations and settings are great, and may ultimately lead to better health for individuals.

Harry Potter: Books and Merchandise :: Harry Potter Essays

Harry Potter: Books and Merchandise With the rising popularity of the Harry Potter books, there is an increase in production of Harry Potter merchandise that both Hasbro and Mattel are taking full advantage of. Warner Bros. Worldwide Consumer Products has announced that Hasbro has received the license to create Harry Potter games that involves the first two books in the series, Harry Potter and the Sorcerer’s Stone and Harry Potter and the Chamber of Secrets. Some of the Hasbro divisions including, Wizards of the Coast, Tiger Electronics and OddzOn, are also going to create some Harry Potter products. These companies are worldwide leaders in the products that they make, some of the products that they are known for are, the Pokemon Trading Card Game and Magic: The Gathering. There are trading cards, candy, youth electronic video games, and role playing games. Cap Candy will have interactive candy including the magical Bertie Bott‘s Every Flavor Bean and Tiger Electronics will introduce handheld electronic games, personal radios and recorders, diaries, kids messaging systems and voice changing devices. â€Å"The millions of Harry Potter fans around the world are going to love seeing literary references to things like cards and candy come alive through our exiting range of offerings,† said Alan G. Hassenfeld, Hasbro’s chairman and CEO (About). Mattel, however, has the rights to Harry Potter toys. They have produced action figure trivia games, and collectible figures. Some of the collectible figures will only be offered in specialty stores. Most of these toys became available during the first part of the 2001 (Find Articles). There have already been over five hundred toys and gimmicks in stores, including dolls, puzzles, castles, broomsticks, and do-it-yourself magic. With the holiday season coming up, the Harry Potter products will be selling out fast. Mattel expects certain items to be sold out by Thanksgiving. Storeowners are happy to see the rise in sales with the merchandise and have had a hard time keeping products in the stores (CNN.com). The popularity of J.K. Rowling’s Harry Potter series has helped Hasbro’s and Mattel’s sales go up. People, young and old, are buying up all of the Harry Potter merchandise and spending an enormous amount of money on the products. Along with the merchandise being sold in stores there is also a movie, â€Å"Harry Potter and the Sorcerer’s Stone† that came out November 16, 2001.

Free Things They Carried Essays: Very Deep and Touching :: Things They Carried Essays

The Things They Carried: Very Deep and Touching   If anyone knows anything about Vietnam it is that many lives where lost.   All through school students were only taught the very top layer about the Vietnam War, such as dates, places that the war took place, and straight statistics of the war.   The parts that were left out are the tragedies, and the permanent scars this war left.   Students are told about the number of deaths that occurred, but they are not told about the lives that were affected, or how disturbing the war really was to the soldiers that fought in it.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Much can be interpreted by what people write.   The great thing about interpretations is that each writing can be interpreted differently.   Just like Tim O'Brien's book titled "The Things They Carried."   It is a very deep and touching collection of stories about the Vietnam War and many   peoples experiences in this destructive war.   One story that is a touching and very intriguing is titled, "The Man I Killed."   A reader can look at this story and relate it back to things they learned in school, but   the point of the story is not this but rather things that can not be taught in public schools.   This specific story goes inside a soldier's mind and shows the reader what they are thinking when they kill someone.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The way that O'Brien starts this story is with great description that helps the reader visualize what is going on.   He describes a mangled body that someone had recently killed; again not part of teachings in public schools.   The story goes on to tell what the victims background may have been in the eyes of the soldier.   How maybe he was a scholar and his parents farmers, or maybe why this young man was in the army, and why he was fighting.   O'Brien states that the man may have joined because he was struggling for independence, just like all the people that were fighting with him, maybe this man had been taught from the beginning; that to defend the land was a mans highest duty and privilege.   On the other hand maybe he was not a good fighter, maybe he was in poor health but had been told to fight and could not ask any questions.   These are all reasons that are taught in textbooks; they go along with the idea of the draft.

Second Language Required Police Departments

Second Language Required Melanie Martinez Current Issues in Criminal Justice Everest University Online Second Language Required The United States of America is full of many cultures, languages, and heritage. With many citizens’ ancestors originating from other countries, it is no wonder that almost every language has made it into America. Law enforcement can be delayed by these languages, though. Officers can benefit from being bilingual, but that is not the reality for most departments.With Spanish being the second, or even first, language of most citizens, it is essential for law enforcement to learn this language, or another popular one. It can help avoid confusion from a suspect not responding or prevent an unnecessary death. When an officer can speak more than one language it may help save lives. If a patrol car pulled up to a house where an unanswered 911 call was made, they may be entering a dangerous area. If it was a meth lab that was about to blow up, and the person outside only spoke Spanish, they could unknowingly enter the home and it explode with them in it.That is a situation that could be prevented with taking the time to learn another language. Even though getting every officer to learn another language would benefit the effect of law enforcement, the reality of the situation is saddening. With officers working long hours and in a stressful job, it does not allow much time for officers to learn a new language (Hickey, 2012). Along with tight budgets of police departments, it does not allow the officers to learn it at work either.The reality of the situation is that officers just do not have the time to learn another language. It would also make officers work even longer; resulting in more overtime and it would complicate staffing when learning it on the job. Learning another language is beneficial to the officer and the police department in every city. It would avoid complications and confusion in any given situation (Khashu, Rahman, &am p; Shah, 2007). It also is not really a reality with the hours officers and the stress deal with on a daily basis.Time management is the only way to get it done with the help of the department, officers, and the budget. It is all a matter of time. Reference List Khashu, A. , Rahman, I. , & Shah, S. (2007). Overcoming language barriers: solutions for law enforcement. Vera Institute of Justice. U. S. Department of Justice. Page 4. Retrieved from: http://www. cops. usdoj. gov/Publications/vera_translating_justice_final. pdf Hickey. (2012). Taking sides: clashing views in crime and criminology, 10th ed. McGraw-Hill Companies, Inc.