Mechanical Principles, Complex Loading Assignment

Mechanical Principles, Complex Loading - Assignment Example 27). There occur changes in dimensions when a body is subjected to an axial force. Considering a bar of length l, breadth b and thickness t, it changes dimensions to l+Éâ€"l, b+ Éâ€"b and t+ Éâ€"t respectively (Gere & Goodno, 2012: P. 27). When subjected to an axial force, whether compressive or tensile, then, The Bulk Modulus of a solid material is the ratio of direct stress exerted on a body to the volumetric strain exerted on the same body, provided both are kept within the elastic limit of the material of which the body is made of. As thus, it is the resistance of a body to compression under uniform force (Gere & Goodno, 2012: P. 42). As such, one parameter be worked out if the others are known, and therefore, there is no further need for complicated derivation of each formula. However, on its own, the Elastic Modulus can calculated from the formula: Modulus of Elasticity (elastic modulus) can be defined as the ratio of shear stress to the shear strain exerted on a body. As thus, it denotes a body’s ability to undergo temporal elastic deformation when a force is exerted on it. Modulus of rigidity of a material refers to its ability to resist angular change that is bound to occur when the body is exposed to external stresses. The stresses may lead to the formation of an angle in relation to the original position of body. As such, the modulus of rigidity is the coefficient, or measure o resistance to the formation of this angle (Gere &Goodno, 2012: P.

Apps of psychology ( application of psychology) Essay

Apps of psychology ( application of psychology) - Essay Example These principles govern the functioning and the growth experienced by the organization. Rationalism is a principle that expresses decision making and analysis in deductive and logical patterns. This principle emphasizes objectivity and logical patterns that are very useful in identifying the best procedures that will lead to enhanced productivity. Pragmatism is a principle that defines the need for emphasis on results, and the need to identify the procedures most effective in delivering the said end goal. Existentialism on the other hand is a principle that guides development towards individual and team growth through enhanced understanding of needs, values and goals. These philosophical constructs are very real to the process of Organizational Development. Freud’s Psychoanalytic constructs are best applied to individuals, but are also useful in understanding the motivations of an individual within an organization. His description of anxiety and defense mechanisms like projection denial and action formation have been found to be applicable to organizational settings; while the concepts of fixation, transference and regression have been found to adequately explain issues faced by individuals in the resolution of these said problems. Freud’s theory breaks life into stages, and the resolution of the dilemmas Faced by the person at each stage becomes a key component in the personality they form by the time they reach adulthood. Using this information, it is possible to select individuals who are equipped for certain jobs, and the avoid placing individuals in positions which will draw out their anxieties and inhibit their ability to work better. The understanding of personality afforded to us by the work of Sigmund Freud helps is in choosing the right individual for the right job, for understanding and resolving the anxiety and dilemmas faced in work groups; and to understand

Technology and its Backlashes Speech or Presentation

Technology and its Backlashes - Speech or Presentation Example Russell and Bone further stated that modern technology, although sometimes not the direct cause of the impending eradication of humanity, is definitely the means that humans will use in pushing their causes that will ultimately end the existence of man (24). The earth, as humans know it today, has been much influenced by numerous scientific inventions (Haven 109). The influence that science has over man’s social lives, infrastructures, tools, food, and many others is a solid evidence of the veracity of this statement. For example, fossil fuel and computer technology are part of the world’s daily existence (Haven 135). Fossil fuel is necessary in water purification process, communication, manufacturing industry, electricity, road construction, food processing, and other things necessary for the regular flow of daily living (Haven 137 and Milne 36). Subsequently, computer technology is essential not only in the above-mentioned processes, but also in other areas of human l ives, like social or work aspects (Milne 43). Since fossil fuel and computer technology are examples of science, it is thus not an exaggeration to suppose that humankind is highly likely dependent on the advances of today’s technology. ... One major example is the two world wars during the past century. Conflicts between nations resulted in the death of millions of people by means of using artillery or bombs. Who could forget the City of Hiroshima destroyed by just one atomic bomb? If this massive damage was possible over six decades ago, how much more possible is it to cause larger damages now with man’s latest technology? (Russell and Bone 41) Obviously, the question now is not whether man can eradicate his own specie or not, but when would he decide to do it. However, several people would argue that science has done more good than bad, particularly when one would look at the health solutions made available by the latest technology, curing diseases that were previously thought of as terminal. Yet, upon further evaluation, several of these diseases, which cures depend on science, are by-products of science in the first place (Milne 68). This is not to say though that progress is a bad thing. However, man should have a realistic viewpoint on what he brings upon himself. Just the fact that both health and armaments fall under the top three largest businesses in the world (Barrie 6) presents a clear picture of the path that man’s existence takes. The changing environment caused the extinction of dinosaurs, and man is faced with the same concern. The difference however is that the present change in environment is man-made (Russell and Bone 10). Nevertheless, the same failure to adapt that caused dinosaurs to become extinct will also cause man a similar fate. The massive changes man creates in nature deplete the sources at a faster rate than can be recovered (Burroughs 121). An obvious proof of this is the pollution problem that science cannot control,

Why Finland Education Model will not work for the United States Essay

Why Finland Education Model will not work for the United States Education System - Essay Example These include; institutional design, funding, and Teacher training- teacher retention. Critical analysis of these factors and their application between the two countries explains the variation in their education performance ranking. Unless united States initiate reforms on its institutional designs, it will lag behind Finland in terms of its overall education system performance. The Finland government has centralized education policy decisions under the ministry of education. This means that the curriculum structure is uniform and tests are homogeneous across the whole country. Such institutional design means that diverse teaching skills are applicable in different settings and learners abilities. This offers better opportunities for the children and teachers with unique differences to work towards a common goal. This explains the outstanding performance of the education system in Finland as seen from its high global ranking over United States. In-depth assessment of the institutional design of United States exposes significant flaws that make its education system relatively poor (Tiina and Markku, 2007). The curriculum development and implementation has been decentralized to individual states. This has placed significant accountability pressure on the teachers and placed much emphasis on passing tests. This design means that the socio-economic diversity in terms of learning ability, teaching skills among teachers and students is disregarded. This has been in force since the passing of No Child Left Behind (NCLB) Act (2002) by President George Bush administration. This has seen teachers concentrate on tests which fail to capture other important aspects of learning among students’ hence poor math and language skills mastery progress. It is therefore evident that while Education in Finland is managed from national platform, the United States has left education management in the

The argument Essay Example | Topics and Well Written Essays - 1000 words - 1

The argument - Essay Example It is also believed that India was one of the few countries which pioneered the consumption of this plant as a tool for recreation and relaxation. The Sadhus and the Gurus who practiced the art of spiritual elevation found this plant to be extremely useful for their purpose. Ancient Hindu text Soma Veda refers to Marijuana as the â€Å"food of the thinking mind.† (ElSohly, Mahmoud) Despite being termed as a life saving drug, there are a number of side effects of this plant because of which the legalization of marijuana has not yet had a concrete stance in the law making process. Marijuana comes from the plant known as Cannabis Sativa. The major psychoactive compound in the plant is known as THC, and this is the element which is responsible for the psychoactive effects in the human mind. The female plant of Cannabis Sativa is consumed by people as it is said to be more potent with THC than the male plant. Marijuana has been used for medicinal as well as recreational purposes. I t influences the human body and mind in many different ways and even has the power of changing the mood to the perception of the human mind for a particular object. It enhances hunger when consumed and can lead to weight loss among those who consume it. It relaxes the muscles and also helps the mind calm down after the THC molecules hit the ‘cannabinoid’ receptors which are present in the human mind. ... The reason is valid as they understand that no matter what the law says, people will still be able to find means to procure Marijuana and consume it for their relaxation purposes. (Iversen, Leslie) However, they fail to understand that in spite of them consuming the plant in such a fashion, it remains a fact that this is not the legal way and they are going beyond the boundaries of law to procure and use this item. This is where the argument of legalizing Marijuana erupts, as those who want to smoke it and want it to be legalized raise their voice. These are the people who say that the boundaries of law have to be stretched to accommodate those societies which have been living on this plant for centuries now. However, there is strong counter argument from the other camp, as they believe that it is a drug and has extremely volatile effects on the human mind and body, and therefore it should never be legalized. The topic is indeed compelling and timely. The argument of legalizing Marij uana will never run out of time. It has been a debate which has been going on for ages now and the whole process of societies opening up to it and accepting it the way they have accepted alcohol will take a lot of time and effort, from those who want to legalize it and also from those who think it is in the right domain to legalize it and let the people decide for themselves. People from all walks of life have indulged in this ecstasy, be it the rock stars, the founding fathers of USA, or the common average man smoking in his courtyard, or the young students in college ready to take on the mantle of their life. It has been used and consumed by every kind of person out there and

What kind of successful interventions for obesity prevention in school Research Paper

What kind of successful interventions for obesity prevention in school from 10 to 12 grades have been conducted in the United State - Research Paper Example Intervention programs aimed at obesity prevention for children and adolescents should be a national priority in order to have a healthy nation in future. There is considerable increase in health risk for children and adolescent who are obese or overweight as they are in danger of suffering from diseases such as, hyperlipidemia, type 2 diabetes, asthma and hypertension (Reilly et al., 2003). When children and adolescents with both type 1 diabetes and type 2 diabetes are compared, youth suffering from the later face increased health complications such as nephropathy and cardiovascular disease associated with diabetes (Eppens et al., 2006). Obesity also results in behavioral and mental issues for the affected children with studies indicating adolescents also experience psychological consequences such including low self-esteem and depression (Reilly et al., 2003). Obesity for children in 1st to 12 grades is a problem that is widespread as it cuts across all social, economic and racial classes. Based on the available data, obesity affects even children from the minority groups that include Native Americans, African-Americans as well as Hispanics in addition to low-income groups. According to Ogden, Carroll, Kit and Flegal (2012), the prevalence of obesity for children from African American (24 percent) and Hispanic backgrounds (21 percent) is higher compared to those from white ethnic background (14 percent). The problem of childhood obesity has led to concerted efforts by stakeholders in education and other welfare organizations to identify the childhood obesity causal factors, the consequence on overall wellbeing of the children as well as the necessary mechanisms to arrest the situation. The consequence of increased interest into the problem of obesity in children and adolescents attending 1st to 12 grades has led to the identification of several contributing factors that have been blamed for

Citrobacter freundii Lab Report Example | Topics and Well Written Essays - 1250 words

Citrobacter freundii - Lab Report Example The biosphere is characterized by the presence of microorganisms allover which invariably impacts on the environment they are growing. Microorganisms are present in the air, soil, plants and animals and their presence can be harmful, beneficial or inapparent with respect to human measure. Pathogenic microorganisms are known to cause diseases to the host animal while opportunistic microorganisms stay in a healthy host for longer period without causing illness the immune system of the host is suppressed. However some microorganisms are very beneficial as they are used in biotechnological processes, soil and to degrade waste. This paper focuses on experiment for isolation and identification of Citrobacter freundii bacterium. The bacterium Citrobacter freundii is an opportunistic pathogen belonging to the family of Enterobacteriaceae and was first identified by Gillen and Werkman in 1932 from soil extracts (Leboffe & Pierce, 2011). It is a long rod shaped facultative anaerobic gram-negative bacilli bacterium characterized by many long flagella to aid its movement though others are none motile. C. freundii is rod shaped between 1um diameter and 2-6um in length with optimum growth temperature of 370C and produces gas and acid as a result of carbohydrate catabolism (MicrobeWiki, 2011). The habitat for Citrobacter freundii includes food, water, soil, sewage and the intestinal tracts of both human and animals (MicrobeWiki, 2011). The diverse habitat upon which this bacterium can grow is mainly due to its ability to metabolize citrate and lactose as the main sources of carbon. Citrobacter freundii is characterized by various opportunistic infections including a variety of nosocomial infections of the respiratory tract, blood, urinary tract and other sterile sites in patients with suppressed immune system (MicrobeWiki, 2011). Research has revealed that C. freundii is responsible for over 29% of all the opportunistic infections (Leboffe & Pierce, 2011). It is therefore