Saturday, August 24, 2019
Fortune 500 Company Analysis Essay Example | Topics and Well Written Essays - 750 words
Fortune 500 Company Analysis - Essay Example Fortune 500 Company Analysis Wal-Mart Corporation is the biggest global retailer and by the end of January 2010, the company had amassed more than $400 billion in revenues, $24 billion in operating income, and operate 8,500 stores with approximately 1 billion square feet of space (Datamonitor: Wal-Mart Stores, Inc. 2010). Through low prices and development, Wal-Mart grew from their Arkansas roots to a global market leader. Wal-Mart is the largest firm in the global general merchandise stores sector, creating a 31.5% share of the sector's worth. Despite considerable opposition in the retail setting, Wal-Mart became a global leader by providing discounted price products to their customers. Wal-Mart manages three business divisions in the general merchandise industry: Wal-Mart, Sam's Club, and the international segment. Internet revenues are also an essential input to Wal-Martââ¬â¢s achievement and the companyââ¬â¢s Internet activities will continue to be a part of the future syne rgies of their business plan. Wal-Martââ¬â¢s huge merchandise offerings and the wide blend of goods make it possible to differentiate them from the competition. Wal-Mart supplies branded and private label merchandise in several categories including groceries, recreation, electronics, apparel, wellbeing, interior design, and monetary services.
Friday, August 23, 2019
Why did the United States invade Iraq Term Paper
Why did the United States invade Iraq - Term Paper Example Therefore if a state functions within its own territories in a way that causes massive violations of these essential principles like manufacturing weapons of mass destructions or carrying out activities like genocide, then it is indeed a potential threat to the world community. The maxim ââ¬Å"injustice anywhere is a threat to justice everywhereâ⬠is very relevant here. The world has become a small global village wherein we are so interconnected that the act of one will affect another directly or indirectly. Actions of each and every state are now a matter of concern and should be closely scrutinized to prevent an era of disharmony leading to a situation like that of world wars. In the decades following the horrors of World War II and the genocide of European Jews, the world community was shocked and UN spurred by these terrible crimes demonstrated the renewed political will of bringing together the nations to combat any such threat to world peace and welfare in future. It has now become a general principle accepted both inà lawà and practice that imperialism and foreign invasion were antithetical to the right of self-determination, which was understood to be the basis of the post-World War II worldwideà order. In the light of above mentioned principles of international law and its protected principles, an attempt has been made here to study the reason and legality of USââ¬â¢s attack on Iraq on various ground. ... We are still in a speculation mode regarding why exactly USA invaded Iraq; whether the motive was to actually disarm them of any weapons of mass destruction or was it because Bush administration eyed the oil wells of Iraq. In the era where the international values are ââ¬Å"peace, security and the well being of the worldâ⬠, it is not at all acceptable that a country wage war on another country for selfish ulterior motives, under the garb of protecting the noble principles of international law. Thus there is no denying the fact that there is an utmost urgency to probe into the reasons of such invasions. The USAââ¬â¢s invasion was criticized as illegal war legalized by misusing the international principles. If this is true then we are facing a very imminent threat posed by the developed countries to developing countries and this war will act as a bad international precedent for the same. Hence the actual reason behind the invasion of Iraq is a million dollar question. HISTORIC AL PERSPECTIVE USA and its allies attacked Iraq under the pretext that Saddam Hussein was in possession of weapons of mass destruction and it was likely that he would pass along those arms to al Qaeda. However the validity of such a ground was later found to be highly diluted. Experts thereafter postulated that we cannot all together rule out the possibility that this war was the outcome of enigmatic psychology of bush, particularly with respect to his relationship with his father along with the irresistible temptation of getting a strong hold over the prized Mesopotamian oil fields. Possibly he sought to "finish the job" that his father had begun in 1991 or may be to avenge Hussein who was alleged to have made attempts to
Thursday, August 22, 2019
Milk Powder Essay Example for Free
Milk Powder Essay Why joint venture? Highest market share in milk powder, can provide technology and reputable brand name. Already brand recognition in Pakistan, thus familiar with market. Drawbacks? High royalties to established brand. Large multinational venture might dominate Milkpak. Proââ¬â¢s Nestle Base in dairy products. Started out with infant formula. Plants in 60 countries, already business in Pakistan. Looking to fulfill long-term goals. Want decentralization, give JV own identity and responsibility. This was can better adapt to foreign market. Provide RD and technical assistance to subs. Growing interest in Pakistan market. Informal channel of communication. Conââ¬â¢s Nestle Want majority ownership in JV and want royalties. How to make cons pros? Majority ownership Nestle means that MP bears the least risk. Because MP has technical difficulties in setting up a Greenfield MP needs Nestle and Nestle needs royalties for its technology. But this is one of the few requirements. The JV will get its own management and gets a lot of responsibility. This makes it easier to adapt to the Pakistan market. This is also the trust Nestle puts in MP, since Nestle will bear most of the risk due to the majority ownership. Nestle also has the highest market share for milk powder, which can be used to gain a good reputation. In short Nestle bears risk, puts MP in charge of the subsidiary, gives technological and RD support, which is what MP is looking for, but needs royalties in return. Familiar with milk powder and infant formula.
Wednesday, August 21, 2019
Meaning of Life and Yoga Essay Example for Free
Meaning of Life and Yoga Essay Celebrity Yoga: Is this just a fad? Yoga has become a very popular exercise among people all across the world. Celebrities are also adopting this practice in order to strengthen their bodies. Celebrities and yoga has been a winning combination for quite some time in America, and more and more people are beginning to at least try yoga because their favorite celebrities are trying it. Celebrities that do yoga are making the practice more popular. Yoga industry in the United States has grown considerably since many celebrities have admitted to practicing yoga on a regular basis. Here are some things you will want to know about celebrities and yoga that may help you to decide whether or not you want to try yoga for yourself. What do celebrities have to say about yoga? Celebrities like Meg Ryan, Jennifer Anniston, Ricky Martin, and Madonna have all admitted to using yoga as a means to calm the spirit, tone the muscles of the body, and increase physical strength. Many people also say that yoga gives a personal sense of accomplishment, and that it is easier to handle rigorous demands of the day by practicing yoga Yoga is also designed to help people learn about the meaning of life. Yoga allows you to train your mind to think about positive things, and you are also able to think about how to solve problems and even get along well with others. You are also taught about how certain yoga principles should transfer into your daily life, such as learning how to do everything in the right time, or being patient with others. It is also believed the yoga will give you a higher tolerance for pain. One of the most important factors which cause the heart disease is depression. Tachycardia and other disturbances are caused due to this depression. Rhythm of the heart is altered due to tachycardia and other disturbances. Long-lasting or repetitive state of depression will make a considerable damage to the heart and enhances the chance of getting heart attacks. Yoga is an effectual solution against all sorts of stress since it can enhance the level of GABA (gamma amino butyric acid), a neurotransmitter in our brain which is correlated to depression when it is in supplied lesser in the brain. After one session of yoga the level of GABA gets increased.
Human Lymphocytes Exposed to Co Irradiations and I Decays
Human Lymphocytes Exposed to Co Irradiations and I Decays Chapter 1: Introduction 1.1. Microdosimetry Problem statement Nuclear medicine and molecular imaging use unsealed radionuclides for diagnostic or therapeutic purposes. In targeted radiotherapy, the aim is to address tumor cells using suitable radiopharmaceuticals and achieve a high dose deposition inside the target structures. ââ¬Å"Macrodosimetryâ⬠generally entails estimating the dose effect in organs (or dimensions of at least some millimeters) and is outlined in detail by the Medical Internal Dose (MIRD) Committee, the U.S. Society of Nuclear Medicine and the International Commission of Radiological Protection (ICRP) [1]. Microdosimetry therefore entails estimating the dose absorbed in microscopic objects such as cells. Dose deposition in cells can originate from extracellular media, intracellular uptake in a single cell and from surrounding cells. As an alternative to characteristic photon emissions,radionuclides decaying by electron capture or internal conversionmay undergo a process known as the Auger effect. In the Auger effect, an electron from an outer shell fills the lower electron vacancy, but the energy released in the process is transferred to another orbital electron. This electron is then emitted from the atom instead of a characteristic X-ray [2]. The emitted electron is called an Auger electron,with ranges in tissue typically at the micro- or nanometer level [3].Their unique property of depositing significant amounts of energy in minute volumes around the decay site opens up the possibility of using them as microscopic probes to study fundamental questions regarding the interaction of radiation with cells. 123I is used mainly in nuclear medicine because of its ideal à ³-ray energy (159 keV) and relatively short half-life (13.2 h). The decay of 123I is, however, also associated with the production of Auger electrons. These low energy particles (4]. Knowledge of the absorbed dose is required for evaluation of the observed biological effects and to predict or compare the effectiveness of different radiation modalities. However, direct dose measurements in cells are impossible due to the small cellular dimensions [5]. According to the stochastic character of all of the decay processes, a large number of pathways exist by means of which a radioactive particle can decay and the excited atom can de-excite, i.e. each initial inner shell vacancy may cause a different number of Auger electrons to be emitted resulting in a more or less broad distribution of differently charged ions. Because these electron transitions and particle interactions are random processes, the Monte Carlo technique is an appropriate tool for the simulation of Auger emissions and electron spectra, as well as a feasible method to obtain correct absorbed dose values under consideration of all irradiation aspects like geometry and activity distributions [5],[6], [7]. Bingham et al. found that the dose delivered to the cell nucleus is underestimated by a factor of 7.4 for 123I in cells with nuclear radius of 4 à ¼m and cell radius of 12 à ¼m when compared to conventional electron dosimetry, indicating the need of developing dosimetr ic calculations for electrons emission at a cellular level [8]. Geant4 is an open source Monte Carlo (MC) toolkit, based on object orientated programming rules using the C++ language, which provides functions for simulating the passage of particles through matter [9]. The code is freely downloadable from the Geant4 web site. Detailed descriptions of the toolkit design and the physical fundamentals may be found in the ââ¬Å"Geant4 Userââ¬â¢s Guide for Application Developersâ⬠and the ââ¬Å"Physics Reference Manualâ⬠[10], [11]. Besides the fact that it is entirely open-source and freely available to all users, the main advantage of this toolkit is its openness to modification and extensions. Originally Geant4 comes from high-energy physics but it also provides low-energy physics processes necessary for medical applications. Users may construct stand-alone applications or applications built upon another object-oriented framework. In either case the toolkit offers support from the initial problem definition to the production of results and graphics for publication. At the heart of Geant4 is an abundant set of physics models to handle the interactions of particles with matter across a very wide energy range. Data and expertise have been drawn from many sources around the world,and in this respect Geant4 acts as a repository which incorporates a large part of all that is known about particle interactions[12]. All aspects of the simulation process have been included in the toolkit: the geometry of the system, the materials involved,the fundamental particles of interest, the generation of primary events, the tracking of particles through materials and electromagnetic fields, t he physics processes governing particle interactions, the response of sensitive detector components, the generation of event data,the storage of events and tracks, the visualization of the detector and particle trajectories, and the capture and analysis of simulation data at different levels of detail and refinement. 1.2. Objectives Aims The level of biological effects of certain radiations is not always directly proportional to the dose they impart. Since the delivered dose on a cellular level is not directly measurable using current instrumentation, scientists and physicians have developed correlations between the biological response and the exposed dose through experiment and theory of atomic physics. An alternative method of predicting the delivered dose in a cell is by using Monte Carlo simulations. These simulations however, have to describe the biological composition and geometries of the material as accurately as possible, as well as the interactions of different particles with the material and can therefore result in complex codes and extremely long computation times. In our study, the aim was to determine (through experiments and using Monte Carlo simulations) the relative biological effectiveness[1] (RBE) of isolated and stimulated human lymphocytes exposed to 60Co irradiations and 123I decays. The first phase of experiments was the exposure of 3 different types of cellsto a 60Co-teletherapy unit. The proposed cell lines were: human lymphocytes, rat brain endothelial cells(bEND5, a cell with high radiosensitivity) andChinese hamster ovarian cells (CHO-K1, a cell with low radiosensitivity). The cells were exposed to graded doses of 60Co à ³-radiation, after which they were cultured and the micronuclei formations in binucleated cells were used to analyze the effects of à ³-radiation on the cell types. The second phase of experiments was the exposure of a known number of isolated and stimulatedhuman lymphocytes to certain activities of 123I for a discrete amount of time. The thymidine analogue 5-[123I]-iodo-2-deoxyuridine (123IUdR) was prepared and used to incorporate123I into theDNA of human lymphocytes. This was done such that the radionuclide could be transported across the cell and nuclear membrane to permit the deposition of Auger and Coster-Kronigelectrons in close proximity to cellular DNA. After exposure, the samples werecultured to express residual radiation damage. The cellular damage was quantified by numerating the micronuclei (MNi) frequency in binucleated (BN) cells.The experiments were done at iThemba LABS under the supervision and guidance of Prof. Slabbert and Philip Beukes. The experimental work followed the same approach as that of Slabbert, et al[13]. In the study they focused on the targeting and accumulation of 123I in human lymphocytes and CHO-K1 (a Chinese hamster ovary cell line). They found that the combined effect of intracellular and extracellular disintegrations of 123I is about 3.7 times more potent to lymphocytes compared to when the disintegration of the radionuclide is restricted to only the extracellular medium, among other results. It was concluded that this enhancement is due to the short range Auger electrons emitted by the isotope. Next, we wished to recreate the above experiments through Monte Carlo simulations and thereby determine as accurately as possible the absorbed energy and dose due to the irradiations,specifically the energy and dose deposited by Auger electrons produced during the decay of 123I. We will make use of a Monte Carlo based simulation code Geant4. The code must be mastered and used to simulate the scenarios mentioned above. We attempted to simulate the above 60Co exposures. This simulation was an investigation into the irradiation of a macroscopic volume by a radioactive source. The geometry was set up to replicate the experimental setup with regards to the source location and type, collimation, build-up and backscatter, the Petri dish and cellular media. The individual cells were not used as detectors, only the effective volume in the Petri dish. The energy and the dose deposited by the 60Co source (à ³-rays, primary and secondary electrons) was then quantified by the Monte Carlo simulation. Our main endeavor was to simulate the energy deposition from the decay of 123I within a cell using Geant4. Basically, a geometry representing a biologicalcell (with the same density, etc. as the proposed lymphocytes) was created as a detector to measure the dose, energy and particles traversing it due to a radionuclide prone to emit Auger electrons, i.e. 123I. A similar simulation was performed by Bousis, et al (2012), using their in-house Monte Carlo code [14]. More advanced simulations are the calculation of DNA strand breaks due to direct and indirect effects of Auger electrons as was demonstrated by Raisali, et al (2013), which werehowever not attempted in this investigation [15], [16], [17]. Furthermore, an empirical formula relating the activity(and consequently the absorbed dose) to the biological response was determined. The curveswere compared to other dose-response curves from literature, thereby indicating if the simulations are a viable option for predicting accurate dose depositions. We could then calculate the RBE values from our dose-response curves and compare them to values available in literature. Finally, we aimed to determine the accuracy and feasibility of Geant4 as a simulation toolkit for medical and radiobiological purposes. To this end we considered the practicality, effort and time spent using Geant4, as well as by the comparison of RBE values and dose-response curves. Geant4 is an advanced, extensive and comprehensive simulation toolkit. Its advantage over similar packages with regards to availability, artistic and geometric freedom, physics models and materials libraries and openness to modification are undeniable. It is a very powerful simulation toolkit and can be used in a large number of areas of expertise as is shown by the examples supplied alongside the toolkit. [1]RBE values indicate the effectiveness of two radiation qualities to produce a certain biological response.
Tuesday, August 20, 2019
production and cost curve :: essays research papers
Production/Cost Curves à à à à à Every company has some kind of Revenue and they all have costs that are associated with running the company. It is also true that if a company wants to increase their Revenue, their costs will increase too. It is every companyââ¬â¢s goal to maximize revenue and either through Production or Services, and minimize cost. These things are easy to figure out, but actually identifying the production and figuring out how it will increase or decrease with change is very difficult. à à à à à In Fred Meyer our output like in all grocery stores, is not a product but the amount of items we sell. Sales is what drives the company, it is the source for our Revenue. Similar to manufacturing companies where they have numbers that tell them how much they produced, we have numbers that tells us how much we have sold. Every department has a goal that they have to reach. They have to sell their products to come to that number. The number varies daily, and managers expect from every department that they will sell more products compared to last year. à à à à à For departments to achieve that, managers have to look at the output level and decide how they can increase profit. It will be very difficult for them to do that because if they want to increase the production/output which is sales in my situation, they would incur costs. So if managers decide to try and sell more products, they could hire more employees to persuade customers to buy more products. We can see that when we go to ââ¬Å"Circuit Cityâ⬠and ââ¬Å"Best Buyâ⬠, they have employees just standing around and not doing anything, but once a customer shows up, they are all over them. So for managers in my Home-electronic department they could hire more employees to sell more products. That concept would not be very efficient after a certain number of employees are hired. If we h ire 10 more employee, than a lot of them would just stand around and be in the way of customers and even each other. This situation could be a bottleneck for people that are trying to get something done. Graph A could best describe this example. This graph shows you what happens to the output when more labor is added. The output will slowly level off and then start to decline. If the managers want to maximize the output they would have to look at the max point on the graph to get the highest output with the lowest labor force.
Monday, August 19, 2019
Essay --
Pump Up that Seawater! A Remix of Traditional Freshwater Hydro Systems Hydroelectricity is a super clean energy source that emits minimal pollution. However most dams and structures used to gather hydroelectricity can be placed in limited locations. This is because hydroelectricity today requires two reservoirs of fresh water. It is well known that freshwater is very limited while we have an abundance of seawater, which many scientists believe is supposedly a waste and canââ¬â¢t be used for anything. To harness hydroelectricity to its fullest so that it can provide an abundant source of energy, a hydro system that is much less site-specific is required. Hydroelectric plants can be placed in only so few places, because there are few sources of freshwater. Although hydroelectricity uses renewable resources and releases little to no pollutants, existing hydroelectric plants in total give very little energy and are site specific compared to other sources of energy, it not cost effective and usable in limited areas. We can tackle the problem of limited areas for hydroelectric energy plants by using seawater instead of freshwater. We actually have an infinite amount of ocean water, unfortunately we donââ¬â¢t have an infinite amount of freshwater. Like traditional freshwater hydro systems a seawater pumped-storage hydro would work very similar. Extra electrical energy from nuclear energy, fossil fuels, or renewable energy power plants are used during times of low power demand to push water uphill to be deposited in reservoirs as potential energy. Then, when demand peaks, the reservoirs are opened, permitting water to pass through hydroe lectric turbines to produce the electricity needed to meet power demand. The key modification for saltwa... ...ean, where World watch is currently working with three governments to produce Sustainable Energy Roadmaps, it could be a practical solution to consider. With limited supplies of fresh water, tremendous renewable energy potential on and just off its coasts, and limited energy storage capability, seawater pumped-storage hydro could provide the Caribbean with tremendous benefits. Protecting the environment is crucial for this generation and future generations. My idea may make green energy more popular and benefit the environment. Using blah, blah, blah would blah, blah, blahs. Reducing costs and blah, blah, blah, the simple, efficient, and blah, blah, blah that I developed should encourage more people to switch to renewable resources and support this and my cause. Such a change would make the environment cleaner, healthier, and more enjoyable for generations to come.
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