Thursday, October 31, 2019

The impact of electricity deregulation on customers and employees in Dissertation

The impact of electricity deregulation on customers and employees in Qatar - Dissertation Example The paper incorporates both secondary and primary research study of the issues relating to the issue of deregulation being set in as in how it tends to affect the internal and external operations of the concern. It tends to draw useful inferences through the conduct of such research to thereby arrive at final conclusions and recommendations. ... .2.1 Interview findings 51 5.3 Questionnaires 52 5.3.1 Findings from surveyed managers and employees 52 5.3.2 Strategy fit with Qatar vision 2030 56 5.3.3 Findings from surveyed customer 58 5.3.3 Understanding KAHRAMAA strategy and objectives by employees 58 5.3.4 KAHRAMAA strategy development policy 60 5.3.5 Employee’s involvement in strategy development 61 5.3.6 The impact of non involvement of employees on strategy development 62 5.3.7 Low employees’ motivation and moral 63 5.3.8 Low initiatives to participate in strategy development 66 5.3.9 Perceived problems with strategy implementation 67 5.3.10 Management perception for strategy implementation problems 68 5.4 Suggestions for improving strategy implementation 69 5.5 Perception of strategy change impact on internal culture 70 5.6 The perception of the impact of KAHRAMAA deregulation strategy 72 5.7 Summary 73 Chapter 6: Analysis and discussion 74 6.1 Introduction 74 6.2 The effectiveness of deregulation at KAHRAMA A 74 6.3 The impact of strategy on KAHRAMAA culture 76 6.4 Research objectives 76 6.4 Summary 78 Chapter 7: Conclusion and recommendations 78 7.1 Introduction 78 7.2 Hypotheses 79 7.3 Limitations 80 7.4 Recommendations 81 7.4.1 Kahramaa 81 7.4.2 Future research 84 7.5 Summary 84 Bibliography 85 Appendices 91 Appendix 1: Survey / interview consent form 92 Appendix 2: Questionnaire 93 Appendix 3: Questionnaire Analysis 96 Chapter 1: Introduction Introduction Electricity deregulation along with privatisation is referred to as ‘liberalisation.’ Liberalisation is an accessible, affordable and reliable service which is replaced by ideal competition, the myth that tend to exit with consumer choice along with priority of the economic efficiency which in turn are measured by profits and also through rate

Tuesday, October 29, 2019

Sir Arthur Conan-Doyle Essay Example for Free

Sir Arthur Conan-Doyle Essay This is a wonderful description, almost a photographic image for the reader, a description leaving a sense of, is this a man or a monster? This again adds to the already building tension for the reader, who continues to make his or her own deductions. We see almost immediately how brilliantly perceptive Sherlock Holmes is when he spots the mud on the Ms Stoners coat and the train ticket in her hand. From this he deduces that she must have set off early, travelling in a Dogcart for some time before she got to the station. He picks up on clues throughout the story, things that the everyday person would possibly miss. This again draws the reader in, they feel enlightened and start to study the story more carefully wanting to be more like the ingenious Holmes. The story continues and Holmes and Watson visit the home of Ms Stoner and her stepfather. They inspect the bedroom of the dead sister and Sherlock Holmes picks up on several odd effects that he relays to Watson. Firstly a fake bell pull, then a ventilator which does not ventilate. A saucer of milk in the stepfathers room, becomes suspicious when they are advised Doctor Roylott keeps no cats. Several other little clues are spotted and you can almost feel Holmes mind working overtime. The reader will also pick up on the clues and again start to make their own deductions to Whodunnit? The tension starts to peak when Holmes decides to stay the night with Watson in Ms Stoner sisters bedroom. They wait patiently in a near by inn till Holmes spots a tell tale light, a sign for him to make his move. Crossing the lawn the tension is building and the author cleverly startles the reader by his introduction of the Baboon, a detail that Holmes has overlooked until then. When out from a clump of laurel bushes there darted what seemed to be a hideous and distorted child, who threw itself on the grass with writhing limbs, and then ran swiftly across the lawn into the darkness. The fact that Doctor Roylott keeps these exotic animals is ultimately a very important clue. Once in the bedroom the tension is paramount as the two men sit and wait in the eerie darkness. Again the author startles the reader by the sudden fury of excitement when Holmes lights a match, blinding Watson and therefore the reader is momentarily struck by the unknown. Once Watson gains his vision he relays again the image of Holmes lashing out savagely,I could however, see that his face was filled with horror and loathing. What could be happening? The story ends with the conclusion, albeit a little abruptly, maybe even a little unbelievable and somewhat corny for the modern day reader. We discover that it is a snake owned by Doctor Roylott that has been trained by its master to crawl in to the adjacent bedroom and ultimately kills the sleeping victim. Unfortunately for Doctor Roylott, Holmes foiled his plan by scaring the creature, which in due course turned and killed its own master. This allows the reader to let out a great sigh of relief. The crime has been solved the tension has passed. The story albeit a little obvious and very basic, is also very cleverly written. The author succeeds in initially drawing the reader in and keeping their attention throughout. The story would have been extremely exciting and ground breaking in its day. Exotic animal were unheard of. The account is written in very descriptive but extremely long sentences, which is another clue to its age. Time has taken it toll and we as modern readers have been spoiled by the cleverness of the modern day detective novels. Therefore the ending is a little disappointing, no twists or red herrings except for the gypsies . But the story must be applauded, Conan-Doyle was one of the earliest authors of his kind to begin this clever technique of keeping his reader guessing throughout the book. Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Arthur Conan Doyle section.

Sunday, October 27, 2019

Geopolitics and International Affairs

Geopolitics and International Affairs Geopolitics and International Affairs â€Å"What are the key factors in contemporary redistributions of Geopolitical Power?† The Encyclopaedia Britannica describes Geopolitics as â€Å"analysis of the geographic influences on power relationships in international relations† (2010); therefore Geopolitical Power is the power certain nations have over other nations, based upon Geographic influences and advantages. Across the world the geographies of power shift from nation to nation over time (such as the shift in power from Britain to the USA after WWII) and the hegemonic structure has a huge effect on world dynamics such economy, politics, society and culture. The nation with the most power tends to have the greatest influence over these and other factors. Currently, and in recent years there has been a notable rise in power from nations in the geographic east (most notably China) simultaneous to the apparent decline in power by the worlds current top geopolitical power (the USA). This is raising serious questions as to the future of the current hegemonic structure. There are a number of key factors which are driving this shift in power and here I aim to address and analyse these so that I may answer the question â€Å"What are the key factors in contemporary redistributions of Geopolitical Power?† The USA is currently the worlds dominant geopolitical power and has been since World War II. According to Fareed Zakaria (2008) â€Å"the United States [unrivalled economic status] has lasted more than 120 years† and that â€Å"The US economy has been the worlds largest since the middle of the 1880s†. As of 2008, The CIA World Fact book ranks the USA as having the highest GDP/PPP of any individual nation (The EU is ranked higher than the USA but is technically a united group of countries) which stands at $14,440,000,000,000; around double that of the next country on the list, China (CIA, 2008). In 2004 James F. Hoge, author of ‘A Global Power Shift in the Making (2004) explained that â€Å"Chinas economy is growing at more than nine percent annually† and that â€Å"Chinas economy is expected to be double the size of Germanys by 2010 and to overtake Japans, currently the worlds second largest, by 2020†. To put Chinas rapid growth into perspective in 2 010, its GDP has already overtaken that of Germanys, with economic spectators forecasting Chinas economy to outstrip Japans this year- 10 years prior to Hoges 2004 prediction. However, the economy of a nation may be an important indicator of world power, but is by no means the sole factor in determining hegemonic status; the USA is still dominant for other reasons. Military strength is- and always has been- one of the key ways of determining the power of a nation. The ‘Stockholm International Peace Research Institute (SIPRI) cited the USA as having a military expenditure in 2008 which amounted to $607,263,000,000, accounting for 41.5% of the worlds total military spending (SIPRI, 2009). Military strength provides a nation with the means of physically exercising its geopolitical power over other nations, and the USA currently dominates land, sea and air with its military presence. China may be a growing militant power and have a larger army in terms of personnel, however its military expenditure is a fraction of the USAs; and one must also take into account the sheer size of the population in China which explains the high numbers of active servicemen in the country. Both countries currently have a nuclear capability, which during the Cold War was â€Å"widely seen as a necessary qualification for a seat at the top table†. This is no longer the case and now the possession or development of nuclear weapons is deemed unacceptable behaviour (Hurrell, 2006). This is an example of how the factors of determining Geopolitical power change over time. The demographics of a nation are also of vital importance to its development and changes in population structure can have dramatic effects within both developing and developed nations. As of the 13th Jan 2010, the population of the USA is around 308,478,201, (United States official population clock, 2010) whilst the population of China is around 1,335,035,010 (Chinese official population clock, 2010) over 1 billion more than the USA. This is a vital factor in explaining why China has been experiencing such rapid growth in the past decade. Firstly, a large population means more people spending money, which raises the countrys GDP- China is currently the worlds second largest consumer behind the USA (Zakaria, 2008 [2]). In the current economic climate with recession still looming over many nations, it is important for the general population to keep spending in order to stimulate the economy; in China, this is no issue due to the huge numbers of people. This is why China, and Asia in general, has not been so greatly affected by the ‘global recession as the USA and Europe. A population of this size also provides China with a huge number of people of working age to power the worlds largest manufacturing industry, as well as other important areas of industry from banking (to lead China through this economic shift) to farming (to feed the vast numbers of people living in the country). China is so competitive on the international scene due to its vast labour force. However, it is the structure of a population which is really vital in determining the future power of a nation. An ageing population can put a strain on the relatively smaller working age population due to the cost of providing health care, pensions, housing, etc. A youthful population puts strain on education and health services, food supplies; and can result in too a lack of jobs in the future. Both have their issues, but both also have benefits. Japan for example has the worlds largest ageing population with 12.1% aged 65 and over in 2000, with a predicted rise to 26.2% by 2020 (Anderson, Hussey. 2000). Japan is now experiencing deep demographic issues with the working age population being too small to support the large elderly population, and the birth rate continually falling; having implications to the development of the country which has experienced declining power over the past 2 decades. There is a well known phrase that ‘children are the future and this wisdom is heeded particularly well in the USA. Whilst China may have a huge workforce, they are relatively uneducated. The USA prides itself upon the fact that its education system is so highly regarded, having a high output of skilled workers graduating from its prestigious universities every year. According to Zakaria (2008 [2]) â€Å"America trains more high-quality 4 year engineering graduates per capita than any other country† with â€Å"Eight of the top 10 universities in the worldin the United States†. This is why when visiting many US (and European) higher education facilities it is easy to notice the high proportion of Asian (particularly Chinese) students, as these institutions offer a far higher standard of education than would be available in Asia. These Asian students typically stay in America after they have completed their education due to more job prospects with a better rate of pa y than available back home, so are a vital resource to the country. Americas acquisition and prolonged control of power can largely be thanked to the younger generations who have been educated by US education facilities and gone on to create a huge pool of skilled and talented workers. These workers drive the economic industries of the US, whilst their high expenditure on commodities and consumer goods helps fuel growth of its GDP. Many people believe that China is the sole competitor to the USA for hegemonic status, believing that eventually China will overtake America as the sole dominant world power in terms of economy, military, culture, etc. However, others such as Fareed Zakaria (2008 [2]) believe that â€Å"the rise of rest† is far more likely; meaning that power will become dispersed amongst a number of powerful nations under America so that global decisions will no longer be made from one side of the globe. The countries believed to be the main competitors to this state of uni-multipolarity are those referred to as BRIC countries: Brazil, Russia, India and China. Uni-multipolarity will be the resulting situation whereby the US is still the superpower, but with these BRIC countries having much more participation in world affairs than they have done in the current uni-polar (US dominant) geopolitical structure. This shift in power may come as a shock to America and there is likely to be resistance of some sort from the west, although it is very unlikely that the US will lose its dominance so it should look to facilitate the transition of geopolitical power to make this inevitability happen as smoothly as possible. BIBLIOGRAPHY Anderson, GF; Hussey, P (2000) Population aging: a comparison among industrialized countries. Health Affairs. [Online] Vol 19. No. 3. Sections 191 203. Available from: http://healthaff.highwire.org/cgi/reprint/19/3/191.pdf (Last accessed 13th Jan 2010) CIA (2010). The World Fact Book: Country Comparison GDP. Available from: https://www.cia.gov/library/publications/the-world-factbook/rankorder/2001rank.html?countryName=United%20StatescountryCode=usregionCode=narank=2#us (Last accessed 11th Jan 2010) CPIRC (2010). Chinese official population clock. http://www.cpirc.org.cn/index.asp (Last accessed 13th Jan 2010) Encyclopaedia Britannica Online (2010). Geopolitics [Online] Available from: http://www.britannica.com/EBchecked/topic/229932/geopolitics (Last accessed 11th Jan 2010) Hoge, J (2004). A Global Power Shift in the Making. Foreign Affairs. [Online] Vol. 83, No. 4. Pg 2-7. Available from: http://asr2.myweb.uga.edu/Fall%202004/Readings/Global%20power%20shift%20in%20the%20making.pdf (Last accessed 13th Jan 2010) Hurrell, A (2006). Hegemony, Liberalism and Global Order: What space for would-be great powers? International Affairs. [Online] Vol 82, No. 1. Pg 1-19. Available from: http://www.giga-hamburg.de/dl/download.php?d=/english/content/rpn/pdf/international_affairs_2006.pdf (Last accessed 13th Jan 2010) SIPRI (2009).The SIPRI Military Expenditure Database: USA. Available from: http://milexdata.sipri.org/result.php4 (Last accessed 11th Jan 2010) U.S Census Bureau (2010). United States official population clock. http://www.census.gov/population/www/popclockus.html (Last accessed 13th Jan 2010) Zakaria, F (2008). The Future of American Power: How America can survive the rise of the rest. Foreign Affairs. Available from: http://www.foreignaffairs.com/articles/63394/fareed-zakaria/the-future-of-american-power (Last accessed 11th Jan 2010) Zakaria, F (2008) [2]. The Post American World. [Online] Available from: http://www.cnl.com/documents/Post-American%20World.pdf (last accessed 13th Jan 2010)

Friday, October 25, 2019

Masters Of The Vineese School :: essays research papers fc

The three prominent composers of the classical period were Franz Haydn, Wolfgang Mozart, and Ludwig van Beethoven. These three composers together are known as the masters of the Viennese School. All three of them studied and composed their music in a time of experimentation. They examined the different uses of the major-minor system and then capitalized on the possibilities. From this came the ideal form, the sonata.   Ã‚  Ã‚  Ã‚  Ã‚  Franz Joseph Haydn was born in Austria in 1732. At the age of eight he became a choirboy at St. Steven’s Cathedral in Vienna, he stayed there for eight years. At the age of sixteen Haydn got out on his own and made a living teaching and playing with bands in the streets. In 1961 Haydn began to serve the Esterhazys, a wealthy Hungarian family. Haydn’s service to the Hungarian family is a perfect example of the patronage system. He stayed with the family for almost thirty years. After leaving the Esterhazy family in1791 he visited England twice with great success. Franz Joseph Haydn died in Vienna in 1809.   Ã‚  Ã‚  Ã‚  Ã‚  Wolfgang Amadeus Mozart was born in 1756 in Austria. Mozart was a child prodigy. At the age of 5 he composed his first minuets and at age six he performed before the Empress Maria Therese. In 1763, led by his father Leopold, Mozart went on tour to Paris and London, visiting many courts and also played for the French and English royal families. He composed his first symphony in 1765 and three years later his first opera. Although his career had much promise many became disappointed with his work. Unlike Haydn, Mozart did not agree with the patronage system. After his patron, the Archbishop of Salzburg, dismissed him he became a musical freelancer. Mozart found it hard to find suitable work for a composer with the skills he had, because of his rebellious attitude. He made his living by teaching, publishing music, and playing at patrons houses. In 1781, Mozart met Haydn and they soon became good friends. Haydn was one of the most influential composers of his time and Mozart admired him and was influenced by his music style. Hadyn’t quartets acted as models for Mozart, who also used Haydn’s four-movement plan compared to his earlier quartets, which only contained three movements. In 1784 Mozart and Haydn were joined with two other prominent composers of their time and formed a string quartet.

Thursday, October 24, 2019

Chemistry Extended Essay Essay

To investigate the effect of 2-bromo-2-methyl propane concentration and temperature of the system on the rate of reaction of solvolysis of 2-bromo-2-methyl propane in 90% ethyl alcohol Done by: Habib Iscandar Hinn Friend’s Boy’s School June 22, 2007 To investigate the effect of 2-bromo-2-methyl propane concentration and temperature of the system on the rate of reaction of solvolysis of 2-bromo-2-methyl propane in 90% ethyl alcohol Introduction: The major product of the solvolysis of t -butyl chloride in 70 % water – 30 % acetone is t-butyl alcohol, with a small amount of isobutylene being formed as a by product And this is with accordance of first order kinetic and suggests a two step mechanism in which the rate determining step consists of the ionization of t-butyl chloride, and in this mechanism a carbonium ion is formed as inter- mediate and this bonds immediately to near by nucleophile (in this case nucleophile is a neutral molecule) the initial product is t-butyl carbonium ion. â€Å"Note1: if the nucleophile is neutral the product will be charged since the leaving group takes both bonding electrons away with it† So chemists have proposed to general types of mechanism: 1- Nucleophilic substitution Sn1 The ionization step in a Sn1 reaction is endothermic and much slower than the exothermic neutralization of carbonium ion by a nucleophile. And so the rate determining step being the unimolecular ionization of the t-butyl chloride equation 4, and as a result, the overall rate of reaction is not affected by changes in the concentration or kinds of nucleophilic reagents present. â€Å"Note2: the factor which determines the mechanisms employed is typically the nature of the substrate it self and not the particular nucleophile† â€Å"Note3: if the sum of the energy of the product is lower than the energy of the reactant the reaction is exothermic, and if the product have higher energy than the reactant the reaction is endothermic.† 2- Elimination E1 (elimination unimolecular) And because t-butyl chloride acts as a Lewis acid (an electrophile) and combines with a nucleophile to give a substitution product, so the major product of the solvolysis of t-butyl chloride in water-acetone solvent is t-butyl alcohol. (â€Å"Note4†: electrophile: an electron deficient atom, ion or molecule that as affinity for an electron pair, and will bond to a base or nucleophile.) (â€Å"Note5 â€Å": nucleophile: and atom, ion , or molecule that has an electron pair that may be donated in forming covalent bond to an electerophile.) Evaluating the mechanism: The only reactant that is undergoing change in the rate determining step is t-butyl chloride and so such reactions is a unimolecular and follow a first order equation (Sn1, E1). â€Å"This means that the rate of the reaction varies directly with the concentration of t- butyl chloride†. And since nucleophilic only participate in the fast second step, so their relative molar concentrations rather than their nucleiophilities are the primary product – determining factor, and by using nucleophilic solvent like water, so its high concentration will assure that alcohols are the major product, and because water have a high dielectric constant (e=81) so water molecule tend to orient them-selves in such a way as to decrease the electrostatic forces between ions. And an important factor is the salvations which refer to water molecules ability stabilize ions by encasing them in a sheath of weakly bonded solvent molecules: 1- Anions are solvated by hydrogen – bonding, 2- Cations are solvated by nucleophilic sites on water molecule (oxygen). And in this case of t-butyl carbonium ion the nucleophiles form strong covalent bond to carbon and converting the intermediate to a substitution product. The reaction mechanism is a sequential account of each transition state and intermediate in a total reaction, the over all rate of reaction is determined by the transition state of highest energy in the sequence, so the rate determining step is the rate determining step for both the Sn1 and E1 for t – butyl chloride. (â€Å"Note 6†: the water soluble organic solvent acetone is used to keep a reasonable concentration of t-butyl chloride in solution) The balance equation for t-butyl chloride solvolysis in water-acetone solvent is: The effect of concentration on the solvolysis of t-butyl chloride in 70 %water – 30 %acetone solvent. As the reaction proceeds the solution becomes increasingly acidic until all of the t -butyl chloride has reacted and all HCl that can form has formed. So we will monitor the reaction by allowing HCl formed to neutralize a predetermined amount of NaOH. An indicator dye (bromo-phenol blue) will change color when the NaOH has been neutralized, and clocking of the reaction should begin at the instant. So according to kinetic measurements: Rate of reaction = K [t – butyl chloride] Where K is the specific rate constant in S -1 and [t – butyl chloride] is the concentration of t-butyl chloride in M. Our kinetic measurement will depend on the determination of the amount of HCl produced by the reaction, so by monitoring the color change of the acid – base indicator, we will determine the time required for 10% of t-butyl chloride to hydrolyze by having 10 % as much NaOH present as T-butyl chloride. Rate = – d [Rcl] dt ; Where Rcl = -dt [Rcl] = K [Rcl] dt Rearranging, d [Rcl] = -K dt [Rcl] And integrating for t=0 to t=t will give; = Ln [Rcl] t – Ln [Rcl] 0 = – Kt – 2.303 Log [Rcl] 0 = – Kt [Rcl] t 2.303 Log [Rcl] 0 = Kt [Rcl] t Where [Rcl] 0: is the molar concentration at time t = 0 [Rcl] t: is the molar concentration at time t = t Two methods to calculate K 1- since the equation Kt = 2.303 Log [Rcl] 0 [Rcl] t Is an equation of a straight line (y=mx+b) with slope k. and intercept =0, a plot of 2.303 log [Rcl] 0 / [Rcl] t versus t should yield a straight line with slope k. 2- if the solvolysis reaction run to 10% completion Then, [Rcl] = 0.90 [Rcl] 0 Kt = 2.303 Log [Rcl] 0 = 2.303 log (1.11) 0.90 [Rcl] 0 And therefore, K = 0.104 T So by finding the value of K and compensate it in the rate of reaction equation â€Å"Rate = K[Rcl]† where the concentration of Rcl is known we can calculate the value of the rate of reaction and we will see it’s effect on the solvolysis of t – butyl chloride in 70% water – 30 % acetone solution. The effect of temperature on the solvolysis of t -butyl chloride in 70%water – 30%acetone solvent. In nearly every instance an increase in temperature causes an increase in the rate of reaction, â€Å"because the total fraction of all of the t – butyl chloride 1molecules having energies equal to or greater than activation energy (Ea) Corresponds to the shaded portion of the area under the curve increases by increasing the temperature† and by comparing the area for two different temperature, we see that the total fraction of t- butyl chloride molecules with sufficient kinetic energy to undergo reaction increases with increasing temperature and consequently, so does the reaction rate. â€Å"Note7: changing the concentration affects the rate of reaction changing the temperature affects the rate constant as well as the rate.† By finding the values of reaction rate constant K for different concentration of t-butyl chloride and different reaction temperature, we will find the effect of temperature on the solvolysis of t-butyl chloride in water acetone solvent. Quantitatively, K (s-1) is related to Ea and T by the equation K1 = Ae-Ea/RT1 †¦Ã¢â‚¬ ¦1 Ea is the activation energy, in joule / mole. (Jmol-1) A is a proportionality constant, in s-1 R is the gas constant = 8.314 Jmol-1K-1 e is the base of the natural logarithms. T is temperature in Kelvin. This relation ship is known as Arrhenius equation We measure Ea by taking the natural logarithm of eq.1 Ln K = ln A – Ea RT Thus, a plot of ln k versus 1/T gives a straight line whose slope is equal to -Ea/R and whose intercept with coordinate is ln A â€Å"Note8: Ea is the activation energy, a constant characteristic of the reaction† We can calculate the rate constant at some specific temperature if Ea and K at some other temperature are known. For any temp. T1 (known), Ea (known), K1 (known) K1 = A e -Ea/RT1 For any other T2 (known); (K2 unknown) K2 = A e -Ea/RT2 By dividing K1 over K2 K1 = A e -Ea/RT1 K2 A e -Ea/RT2 Taking natural logarithm of both sides, we get Ln K1 = Ea (1/T2 – 1/T1). K2 R Or in common logarithms (base 10 logarithms) gives: Log K1 = Ea (1/T2 – 1/T1) K2 2.303 R And by finding the value of K2 we will be able to find the rate of reaction at T2 and we will find the effect of temperature on the rate of solvolysis of t – butyl chloride in 70 % water – 30 % acetone solution. By finding the values of reaction rate constant K for different concentration of t-butyl chloride and different reaction temperature, we will find the effect of concentration and temperature on the solvolysis of t-butyl chloride in water acetone solvent. Procedure: Part A: the effect of concentration on the rate of solvolysis of t – butyl chloride in 70%water – 30%acetone solvent. a- Experimental procedure: to measure the time necessary for 10 % solvolysis of t – butyl chloride (0.1 M concentration) in 70 % water – 30% acetone solvent at room temperature. A, a, I:- 1- Prepare 500 ml of 0.1 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer and label it #2. 3- Using a burette take 30 ml of the solution in flask #1 and put it in another Erlenmeyer and label it #3. 4- By a graduated pipette take 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to an Erlenmeyer flask #4. 6- Add two drops of Bromo-phenol blue indicator to flask #4. A, a, II:- 1- Add quickly the solution in Erlenmeyer flask #4 to solution in flask #3 and start the stop watch to count for time in seconds. 2- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into Erlenmeyer flask #4 to minimize the errors in the results. 3- The color of the mixed solutions is blue, so continue swirling the solution in Erlenmeyer flask #4 till the instant color of the solution start changing to yellow, then we stop the stopwatch and record the time. 4- Repeat the procedure at least three times and calculate the average. 5- Tabulate the results in record A. b- Experimental procedure: to measure the time necessary for 10 % solvolysis of t – butyl chloride (0.2 M concentration) in 70 % water – 30% acetone solvent at room temperature. A, b, I:- 1- Prepare 500 ml of 0.2 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer flask and label it #2. 3- Using a burette take 30 ml of the solution in Erlenmeyer flask #1 and put it in another Erlenmeyer flask and label it #3. 4- By a graduated pipette take 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to an Erlenmeyer flask #4. 6- Add two drops of bromo-phenol blue indicator to Erlenmeyer flask #4. A, b, II:- 1- Add quickly the solution in an Erlenmeyer flask #4 to solution in flask #3 and start the stop watch to count for time in seconds. 2- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into an Erlenmeyer flask #4 to minimize the errors in the results. 3- The color of the mixed solutions is blue, so continue swirling the solution in Erlenmeyer flask #4 till the instant color of the solution start changing to yellow, then we stop the stopwatch and record the time. 4- Repeat the procedure at least three times and calculate the average. 5- Tabulate the results in record A. Part B: the effect of temperature on the rate of solvolysis of t – butyl chloride in 70%water – 30%acetone solvent. a- Experimental procedure: to measure the time necessary for 10 % solvolysis of t – butyl chloride (0.1 M concentration) in 70 % water – 30% acetone solvent at zero Celsius degree. B, a, I:- 1- Prepare 500 ml of 0.1 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer flask and label it #2. 3- Using a burette take 30 ml of the solution in Erlenmeyer flask #1and put it in an Erlenmeyer flask and label it #3. 4- By a graduated pipette take 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to Erlenmeyer flask #4. 6- Add two drops of bromo-phenol blue indicator to Erlenmeyer flask #4. B, a, II:- 1- Suspend the Erlenmeyer flasks in a water bath full with ice and water, allowing the temperature of the Erlenmeyer flasks and their contents to equilibrate for ten minutes. 2- Adding quickly the solution in Erlenmeyer flask #4 to solution in Erlenmeyer flask #3 and start the stop watch to count for time in seconds. 3- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into Erlenmeyer flask #4 to minimize the errors in the results. 4- The color of the solution after that will become blue, so continue swirling the solution in Erlenmeyer flask #4 till the instant color of the solution start changing to yellow we stop the stop watch and record the time 5- Repeat the procedure at least three times and calculate the average. 6- Tabulate the results in record B. b- Experimental procedure: to measure the time necessary for 10 % solvolysis of t – butyl chloride (0.1 M concentration) in 70 % water – 30% acetone solvent at a temperature greater than room temperature by ten degrees. B, b, I:- 1- Prepare 500 ml of 0.1 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer flask and label it #2. 3- Using a burette take 30 ml of the solution in Erlenmeyer flask #1 and put it in an Erlenmeyer flask and label it #3. 4- By a graduated pipette put 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to Erlenmeyer flask #4. 7- Add two drops of bromo-phenol blue indicator to flask #4. B, b, II:- 1- Suspend the flasks #3 and #4 in a water bath full with ice and water, allowing the temperature of the flasks and their contents to equilibrate for ten minutes.(to reach the temperature of the water bath) 2- Adding quickly the solution in flask #4 to solution in flask #3 and start the stop watch to count for time in seconds. 3- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into flask #4 to minimize the errors in the results. 4- The color of the mixed solutions is blue, so continue swirling the solution in flask #4 till the instant color of the solution start changing to yellow we stop the stopwatch and record the time 5- Repeat the procedure at least three times and calculate the average. 6- Tabulate the results in record B. Record A Run number Temperature Time of 10 % reaction Average time / seconds Record B Run number Temperature Time required for 10% reaction Average time/seconds Average time/ seconds References; * E. Brady, James. E. Humiston, Gerard., General Chemistry Principles and Structure, second edition, SI version, john Willy and sons, Inc. * Brewester, Vaderwerf and McEwen. â€Å"Unitized Experiments in Organic Chemistry†, 3rd Ed. * Streitwieser, Andrew. H. Heathcock, Clayton. Introduction to Organic Chemistry. * H. Reusch, William. An Introduction to Organic Chemistry. * J. Laidler, Keith. Chemical kinetics. 2nd ed. * Search engines that where used: o www.google.com o www.yahoo.com * Goldwhite, Harold. R. Spielman, John. College Chemistry, 1984

Wednesday, October 23, 2019

Most Interesting Day of My Life Essay

But, culture is something that you cannot actually see, except through its physical manifestations in your work place. Culture is especially influenced by the organization’s founder, executives, and other managerial staff because of their role in decision making and strategic direction. Culture is the behavior that results when a group arrives at a set of – generally unspoken and unwritten – rules for working together. Culture is not usually defined as good or bad, although aspects of your culture likely support your progress and success and other aspects of life. â€Å"Employees learn the culture of their workplace by seeing how people react in various situations and by understanding what is important to management by observing what they do (more than by what they say)†. â€Å"Culture is made up of the values, beliefs, underlying assumptions, attitudes, and behaviors shared by a group of people†. How employees learn culture? Culture is transmitted to employees in a number of ways . An organization’s culture is made up of all of the life experiences each employee brings to the organization. The following points is more significant in learn culture. * Stories * Rituals * Material symbols * Language Stories: Stories such as these circulate through many organizations. They typically contain a narrative of events about the organization’s founders, rule breaking, rags-to-riches successes, reduction in the workforce, relocation of employees, reactions to past mistakes, and organizational coping. These stories anchor the present in the past and provide explanations and legitimacy for current practices. The stories reflect what made progress and what it will take to continue that success.

Tuesday, October 22, 2019

Oasis Theory and the Origins of Agriculture

Oasis Theory and the Origins of Agriculture The Oasis Theory (known variously as the Propinquity Theory or Desiccation Theory) is a core concept in archaeology, referring to one of the main hypotheses about the origins of agriculture: that people started to domesticate plants and animals because they were forced to, because of climate change. The fact that people changed from hunting and gathering to farming as a subsistence method has never seemed like a logical choice. To archaeologists and anthropologists, hunting and gathering in a universe of limited population and plentiful resources is less demanding work than plowing, and certainly more flexible. Agriculture requires cooperation, and living in settlements reaps social impacts, like diseases, ranking, social inequality, and division of labor. Most European and American social scientists in the first half of the 20th century simply didnt believe that human beings were naturally inventive or inclined to change their ways of life unless compelled to do so. Nevertheless, at the end of the last Ice Age, people did reinvent their method of living. What Do Oases Have to Do With the Origins of Agriculture? The Oasis Theory was defined by Australian-born archaeologist Vere Gordon Childe [1892-1957], in his 1928 book, The Most Ancient Near East. Childe was writing decades before the invention of radiocarbon dating and a half-century before the serious collection of the vast amount of climatic information that we have today had begun. He argued that at the end of the Pleistocene, North Africa and the Near East experienced a period of desiccation, a period of an increased occurrence of drought, with higher temperatures and decreased precipitation. That aridity, he argued, drove both people and animals to congregate at oases and river valleys; that propinquity created both population growth and a closer familiarity with plants and animals. Communities developed and were pushed out of the fertile zones, living on the edges of the oases where they were forced to learn how to raise crops and animals in places that were not ideal. Childe was not the first scholar to suggest that cultural change can be driven by environmental changethat was American geologist Raphael Pumpelly [1837-1923] who suggested in 1905 that central Asian cities collapsed because of desiccation. But during the first half of the 20th century, the available evidence suggested that farming appeared first on the dry plains of Mesopotamia with the Sumerians, and the most popular theory for that adoption was environmental change. Modifying the Oasis Theory Generations of scholars beginning in the 1950s with Robert Braidwood, in the 1960s with Lewis Binford, and in the 1980s with Ofer Bar-Yosef, built, dismantled, rebuilt, and refined the environmental hypothesis. And along the way, dating technologies and the ability to identify evidence and timing of past climate change blossomed. Since then, oxygen-isotope variations have allowed scholars to develop detailed reconstructions of the environmental past, and a vastly improved picture of past climate change has been developed. Maher, Banning, and Chazen recently compiled comparative data on radiocarbon dates on cultural developments in the Near East and radiocarbon dates on climatic events during that period. They noted there is substantial and growing evidence that the transition from hunting and gathering to agriculture was a very long and variable process, lasting thousands of years in some places and with some crops. Further, the physical effects of climate change also were and are variable across the region: some regions were severely impacted, others less so. Maher and colleagues concluded that climate change alone cannot have been the sole trigger for specific shifts in technological and cultural change. They add that that doesnt disqualify climatic instability as providing the context for the long transition from mobile hunter-gatherer to sedentary agricultural societies in the Near East, but rather that the process was simply far more complex than the Oasis theory can sustain. Childes Theories To be fair, though, throughout his career, Childe didnt simply attribute cultural change to environmental change: he said that you had to include significant elements of social change as drivers as well. Archaeologist Bruce Trigger put it this way, restating Ruth Tringhams comprehensive review of a handful of Childe biographies: Childe viewed every society as containing within itself both progressive and conservative tendencies which are linked by dynamic unity as well as by persistent antagonism. The latter provides the energy that in the long run brings about irreversible social change. Hence every society contains within itself the seeds for the destruction of its present state and the creation of a new social order. Sources Braidwood RJ. 1957. Jericho and its Setting in Near Eastern History. Antiquity 31(122):73-81.Braidwood RJ, Çambel H, Lawrence B, Redman CL, and Stewart RB. 1974. Beginnings of Village-Farming Communities in Southeastern Turkey1972. Proceedings of the National Academy of Sciences 71(2):568-572.Childe VG. 1969. New Light on the Most Ancient East. London: Norton Company.Childe VG. 1928. The Most Ancient Near East. London: Norton Company.Maher LA, Banning EB, and Chazan M. 2011. Oasis or Mirage? Assessing the Role of Abrupt Climate Change in the Prehistory of the Southern Levant. Cambridge Archaeological Journal 21(01):1-30.Trigger BG. 1984. Childe and Soviet Archaeology. Australian Archaeology 18:1-16.Tringham R. 1983. V. Gordon Childe 25 Years After: His Relevance for the Archaeology of the Eighties. Journal of Field Archaeology 10(1):85-100.Verhoeven M. 2011. The Birth of a Concept and the Origins of the Neolithic: A History of Prehistoric Farmers in the Near East. Palà ©orient oasis37(1):75-87. Weisdorf JL. 2005. From Foraging To Farming: Explaining The Neolithic Revolution. Journal of Economic Surveys 19(4):561-586.Wright HE. 1970. Environmental Changes and the Origin of Agriculture in the near East. BioScience 20(4):210-217.

Sunday, October 20, 2019

Cruel Intentions vs. Dangerous Liaisons essays

Cruel Intentions vs. Dangerous Liaisons essays Separated by age and vastly different times, both Dangerous Liaisons and Cruel Intentions relay a social prejudice towards women that are identical despite contrasting setting details. In each time period, a preconception of a "real" lady's character drives the female characters to wear "masks" of conformity. This, they feel, society mandates, and is, along with other factors, an evident source of the character's rebellion. The characters of Kathryn Merteuil and Marquise de Merteuil each have scenes in which they define their separate but nearly identical urges to be released from this certain social order that confines them to hide their true identities. Each movie includes this scene to delve into the preconceived role in society that directly factors in Kathryn Merteuil and Marquise de Merteuil's reaction to the confined views of her time. Power is of the utmost importance to these caged women. The role of Merteuil revolves around deceit and manipulation while also requiring her to assume the role of a lady for public viewing. In the first scene she appears in, she is being treated like a very respectable lady by Cecille's mom. In both movies, she receives the highest esteem because of her obvious scheming. Kathryn in Cruel Intentions is the class president and apparently has a very high status in her prep school. In accordance, the Marquise de Merteuil in Dangerous Liaisons receives great respect and the utmost courtesy from other wealthy people. Both characters drop their facades occasionally throughout the movies, but this is only when with Valmont. The character uses the mask of a proper lady when she can attain something in return or protect her reputation and she has no need to hide her true self to Valmont because of their similar motives. Cruel Intentions and Dangerous Liaisons give the character of Merteuil a chance to further define the driving force of the woman by including a certain vital scene to her characte...

Saturday, October 19, 2019

Charles Dickenss Biography

Charles Dickens's Biography â€Å"Reflect upon your present blessings of which every man has many not on your past misfortunes, of which all men have some.† quote by one of the most influential author of English Victorian era, English novelist, Charles Dickens, who wrote numerous highly acclaimed novels. Dickens lived a life filled with happiness and sadness and everything in between. He left such amazing work which is the finest part of Victorian Era literature. Charles Dickens was born on February 7, 1812, in Portsmouth, England. His full name was Charles John Huffam Dickens. He was the second child of John and Elizabeth Dickens. As a child he always liked to put on plays in a family kitchen, and singing songs, standing on the table in the local pub. After that, John and Elizabeth moved to London. And the family moves there. John was a congenial man, he got into big debt. Charles Dickens started going to school at the age 9. His father was sent to prison because of bad debt. After that, Charles had to work in Warrens blacking factory and endured appalling conditions as well as loneliness and despair. This was a factory that handled blacking, or shoe polish. The conditions were really bad. Meanwhile, his family was sent to Marshalsea, to live near his father’s prison, and Charles was left alone. After three years, Dickens was sent back to school but his working experience was never forgotten and that experienced inspired the writing of two well-known novels, â€Å"David Copperfield† and â€Å"Great Expectations†. His father was able to pay the debt. Things turned around again, Dickens at the age of fifteen had to leave school again because he had to work in an office. In the following year, he became a freelance reporter and stenographer at the law courts of London. By 1832 he was a reported for two magazines. Dickens believed that writings can play a big role in fixing the problems of the world. Dickens became a journalist and began with the journals The Mirror of Parliament and The True Sun. After that, he became a journalist for The Morning Chronicle. He published his first book in 1836, â€Å"Sketches by Boz†. In April 1836, he married Catherine Hogarth who edited Sketches by Boz. In the same month, Dickens published â€Å"Pickwick Papers† whi ch was really successful. Catherine and Charles had 10 children. In 1836 Dickens began to publish The Posthumous Papers of the Pickwick Club. This method of writing was really popular in the Victorian Era. After this, he began publishing â€Å"Oliver Twist†. He was also now editor of Bentleys Miscellany, a new monthly magazine. He continued publishing his novel in his later magazines, Household Words, and All the Year Round. Olive Twist kind of expressed Dickens life because this book is about a boy, an orphan, in London. Overall Dickens’s career was really successful but not in his first decade when he published work like Nicholas Nickleby (1838–1839), The Old Curiosity Shop (1840–1841), and Barnaby Rudge (1841). Dickens was also famous in America. He went on a five-month lecture tour of the United States. He spoke out strongly against slavery and in support of other reforms. When he returned from the United States he wrote the book â€Å"American Notes†, a book that criticizes American life as being culturally backward and materialistic. He also wrote another novel, Martin Chuzzlewit, which was about a hero finding that survival on the American frontiers is more difficult than in England. He also wrote, â€Å"A Christmas Carol and The Chimes†. Later on, he went abroad to Italy. Italy’s beauty inspired him to write â€Å"Pictures from Italy†. He also started to publish installments of â€Å"Dombey and Son†. Its full title was â€Å"Dealings with the Firm of Dombey and Son†. This completed the novel and boosted Dickens success. Dickens next novel was â€Å"David Copperfield†. This is an autobiographical novel fictionalized elements of Dickenss c hildhood, his father was an inspiration for the character of Mr. Micawber, his pursuit of a journalism career and his love life. This was Dickens favorite book. In 1850, he began a new magazine, Household Words. His editorials and articles touched upon English politics, social institutions, and family life. The 1850s were a gloomy time for Dickens. In 1851, he lost his father and one daughter within 1 week. After e few years, he fell in love with an actress so he separated from his wife. In response to his sadness, Dickens’s next novels were called his â€Å"dark† novels. These novels are considered the greatest triumphs of the art of fiction. He wrote the â€Å"Bleak House† which is considered to have the most complicated plot of any English novel, the narrative created a relation of all segments of English society. He wrote other novels such as â€Å"Hard Times† and â€Å"Little Dorrit†. Some consider the â€Å"Bleak House† to be the best novel he has written and others consider â€Å"Little Dorrit† since it portrays the conditions of England as he saw it and the conflict between the world’s harshness and all of these were expressed in a really impressive artistic form. In 1859 Dickens published a historical novel, A Tale of Two Cities, which was about the French Revolution. Dickens also published seventeen articles which later on appeared as a book entitled â€Å"The Uncommercial Traveller†. Next, he wrote â€Å"Great Expectations† which is sometimes also considered as his best work. It is a story of a young mans moral development from childhood to adult life. His last finished work was â€Å"Our Mutual Friend† which is about how he viewed London. Before death, Dickens started writing â€Å"The Mystery of Edwin Drood†, but he never finished it. For several years Dickens was sick. He had a railroad accident in 1865 from which he never recovered entirely. Dickens died of a fatal stroke on June 9, 1870.

Friday, October 18, 2019

Hospital Human Resource Department Assignment Example | Topics and Well Written Essays - 1500 words

Hospital Human Resource Department - Assignment Example The paper will have an overall view of the human resource department in a community hospital. Hospital organization hierarchy and structure An organization hierarchy is a form of organizational structure in which every entity apart from one is subordinate to the other. This means that the subordinate departments and sections report to one another within the hierarchy. This ensures that there is a chain of command flowing from the top. The human resource department in community hospital has a hierarchy in which the chain of command flows from the human resource manager. The human resource manager is at the top of the hierarchy given that he/she is the senior most person in the department. He/she oversees the relationship between staff and the organization and establishes the human resources vision. Subordinate to the HR manager are the employee relations manager, compensation and benefits manager and training manager. The training and development manager handles all issues related to recruitment, placements, and selection. Within the same hierarchy exists the employee relations manager who handles matters related to employee grievances and safety issues. The compensation and benefits manager handles issues related to workers’ remuneration, allowances, and incentives. The hierarchy is as shown in the chart below. Fig 1: A chart of Human Resource department’s organizational hierarchy and structure Basic responsibilities of the Hospital HR department The hospital’s human resource department is charged with the responsibility formulating human resource policies, and recruiting and employing staff, training, establishing workers’ remuneration packages and solving any problems related to staffing. This ensures that the hospital meets its personnel requirements and its missions. When formulating new HR policies, the department considers several factors both internal and external to the organization The human resource department ensures that the hospital maintains adequate staff so that no shortage is experienced in the same respect. Staff shortage may affect the hospital grossly to an extent of putting the lives of patients at risk. In so far as staffing is concerned, the department is charged with the responsibilities of recruiting, selecting, and training the employees. The department also offers placement opportunities to trainees and promotion to those staff members that have contributed a lot to the hospital after evaluating the employees (Goyal, 2005). The human resource department of the community hospital ensures that favorable relations exist between employees and managers. It does this by organizing training programs, meetings, and workshops. This has proved beneficial in the hospital as it makes employees feel that they are valued in the hospital and that their contributions in the organization are recognized. The human resource department also ensures that employee’s morale is boosted. This it does b y developing and revising incentive schemes depending on the prevailing situation and considering various factors. The human resource department also ensures that proper procedures and policies are in place for handling employees’ grievances. This goes a long way in avoiding industrial actions including strikes, go slows and litigations as noted by Goyal (2005). Type of department The hospital has a centralized human resource department considering that most of the major decisions are made by the managers. All policies and major decisions a

OPERATIONS STRATEGY AND MANAGEMENT Essay Example | Topics and Well Written Essays - 1500 words

OPERATIONS STRATEGY AND MANAGEMENT - Essay Example McDonalds has a huge supply chain network spread globally and the company puts lots of concentration over its supply chain as it is in the food division so maintenance of the quality of the food items and protecting them from getting damaged. The diagram showing the complete supply chain network of the company is been given below (Bass, 2010, pp. 89-96). The flow of information and also the flow of the materials give a clear indication in as to how important the supply chain is for the company. The company uses various transport medium like for transporting the materials which are perishable are been transported using cold vans which has freezer facilities which helps the company to maintain the quality of the item (Manos and Vincent, 2012, pp. 65-68). Company has looked to get local suppliers for supply of vegetables which can be availed in the fresh way. It has distributors in the supply chain in every city where all the raw materials come from the various suppliers of vegetables, breads, meats, milk items etc. From these distributors the materials are been supplied to the various outlets and restaurants using cold vans and trucks. The time limit for every supply of raw materials is 3 days, that is after every 3 days new stock of raw materials are been supplied to the stores and the maximum stock been maintained in the stores are only for 3 days which helps the company to keep the freshness of the product as a result of which the quality of the food item is been maintained in a good way (Wireman, 2004, pp. 113-115). McDonalds looks to maintain a good relation with the suppliers by providing them good facilities and good knowledge regarding good maintenance of the animals and also gives information to the vegetable suppliers regarding the various methods used for maintaining the quality and freshness of the vegetables. The company ma intains a simple policy of one material-one supplier to give the suppliers under control and

Death Penalty Essay Example | Topics and Well Written Essays - 750 words - 2

Death Penalty - Essay Example The death penalty should not be used for the mentally ill or youths under the age of 18. Circumstances surrounding each individual case also need to be determined. The most important issue concerning the death penalty is the debate. This issue is far from settled either legally or socially in the United States. Many myths surround the death penalty. â€Å"Among the myths surrounding the death penalty are that it deters violent crime, that it costs less than life imprisonment, that victims’ families demand it, and that organized religion justifies and supports its use† (Catron and Stein-Holmes n.d.:4). If a murderer wants to commit a crime, their main thought is not about the death penalty. If this were the case, states like Texas, Oklahoma, and Virginia would see a decrease in capital offences. Timothy McVeigh would have blown up a Federal building in Iowa, not Oklahoma City. Murderers do not have the morals that a rational law abiding citizen have, which makes them think differently. The death penalty does not serve as a deterrent to crime. Although deterrent hypothesis still exist, they are only a hypothesis (Cloninger and Marchensini 2005:3). Research has not definitely proven the death penalty as a deterrent (Cloninger and Marchensini 2005:3). Another myth is the death pe nalty is cheaper than life imprisonment. The death penalty costs more than life imprisonment (Schaefer 2008:177). Another myth debunked is all families request the death penalty. Some family members do not want the death penalty. Finally not all religions demand the death penalty. An example of an anti-death penalty church is the Catholic Church. These myths should not be used to argue for the death penalty. The United States is the last Western country to implement the death penalty (Catron and Stein-Holmes n.d.:4). Of all execution reported, 92% happened in the United States (36 states/military/Federal government), China, Pakistan, Iraq, and Sudan (Schaefer

Thursday, October 17, 2019

Building Construction for the fire service Essay

Building Construction for the fire service - Essay Example Historically, the summer of 1871 in Chicago brought intense and uncontrollable fire, which burnt massive housing. Around 17,500 buildings burnt and 90,000 people were affected by the fire of 24 hour or more. Approximately 300 people died due to it and the dry summer with strong winds spread burning debris in all directions, which affected 73 miles of area. The building structure of that era entailed single layer construction style. The outside layer was responsible for fire protection, but the inside contained all wooden structure. The main water supply and storage was also a wooden structured pine building. When the fire grew intense due to unavailability of proper extinguishing mechanism, (Schons, 2011) the fire blazed for unlimited duration until the rain cooled it off after 24 hours. The pine wood water storage building was the only water supply used by the fire department in those days and that water was also wasted due to collapse of that building. After this horrific fire incident and massive destruction the authorities bend down to look into the basic design of building structures in such catastrophic situations. Therefore, in 1896 NFPA National Fire Protection Association devised a new way to protect massive fire in buildings; hence, introduced automatic sprinkler system. Initially, this system lacked proper standardization and many apprehensions from the researchers made it a little slow to become implementable. However, in 1901, majority of the Factory Mutual buildings were instilled with automatic sprinkler as an innovative fire protection tool, and this technical change in the construction of building became the prime way to prevent property from sudden fire. Another deadly fire incident in Iroquois theater (1903) is considered the lethal fire event in the history of US that burnt 602 people. The wooden structure of the theatre, no exit passage, and ornamental fabric (curtain and

Exploring how Japanese managers adapt in the United States Essay

Exploring how Japanese managers adapt in the United States - Essay Example This in turn makes the organizations to send their local professionals to foreign countries. This however happens most of the time. In order to survive in a foreign country, one of the things that will make it easy for you is to understand the culture of your host country. This enables smooth and effective communication. In understanding the culture of that given country, the most important thing that the Japanese learn is in particular what each society and what they display mean. Cultural adaptations should be on the key front when these manager of organizations decide that they are to send their employees to work in a foreign country (Hoecklin 1995). By implementing a moderate level of cultural adaptation in main settings, professionals create more effectual business relationships, in that way furthering tactical corporate goals. Globalization generates new business opportunities for multinational corporations (MNCs) These MNCs increasingly employ expatriation approaches to make t heir entrance in to markets that are new easy and to administer their coworkers. As much as the responsibility of the worker who is sent to a foreign country is very important, the strategy in which they adapt in is surrounded with a lot of danger. Additionally, the emigre also posses multiple risks for instance if their result outcome is low, this leads to major financial hitches to the organization. (Hodgetts 2005). Many expletory studies of how Japanese emigres become accustomed to working in the United States after a while have been conducted at length. The final results recommend that the managers of Japanese origin adapt ways that are way above their normal concrete and vigor in their stay in the United States. It is also to be noted that the bigger the group of emigres, the... For managers to be effectual in becoming accustomed to their know-how and practices in an overseas country, it is clear that they must have fine technical knowledge in management, excellent understanding of local culture that is culture-specific knowledge in addition to high-quality cross-cultural communications abilities. even though it may be fair to presume that all à ©migrà © managers sent abroad have to necessarily be technically capable which may differ in some cases, it should be comprehended that being able to function well in one’s own culture does not automatically imply that one can do well in a different culture. This possibly will not just be due to the lack of cultural knowledge. To be efficient as a manager in one’s own culture does not usually necessitate one to question lots of the cultural suppositions behind one’s actions or to recognize the cause’s actions, whether they are technically necessary or culturally pleasing to attain good outcomes. To be able to transplant management or technical processes in a different culture, or to expand such processes from zero or from accessible local processes, would necessitate one to question many essential suppositions and to set up the fresh premises based on fine perceptive of in cooperation technical and cultural requirements. It is this final feature of technical capability, which is often tricky to identify. Though, such competence are most probably there in people who are inventive in their own culture, such as those who are capable of setting up novel processes and systems to manage with environmental changes at home and to augment organizational efficiency otherwise, such capability could also be found in people who have already a triumphant track record in cross-cultural management.

Wednesday, October 16, 2019

Death Penalty Essay Example | Topics and Well Written Essays - 750 words - 2

Death Penalty - Essay Example The death penalty should not be used for the mentally ill or youths under the age of 18. Circumstances surrounding each individual case also need to be determined. The most important issue concerning the death penalty is the debate. This issue is far from settled either legally or socially in the United States. Many myths surround the death penalty. â€Å"Among the myths surrounding the death penalty are that it deters violent crime, that it costs less than life imprisonment, that victims’ families demand it, and that organized religion justifies and supports its use† (Catron and Stein-Holmes n.d.:4). If a murderer wants to commit a crime, their main thought is not about the death penalty. If this were the case, states like Texas, Oklahoma, and Virginia would see a decrease in capital offences. Timothy McVeigh would have blown up a Federal building in Iowa, not Oklahoma City. Murderers do not have the morals that a rational law abiding citizen have, which makes them think differently. The death penalty does not serve as a deterrent to crime. Although deterrent hypothesis still exist, they are only a hypothesis (Cloninger and Marchensini 2005:3). Research has not definitely proven the death penalty as a deterrent (Cloninger and Marchensini 2005:3). Another myth is the death pe nalty is cheaper than life imprisonment. The death penalty costs more than life imprisonment (Schaefer 2008:177). Another myth debunked is all families request the death penalty. Some family members do not want the death penalty. Finally not all religions demand the death penalty. An example of an anti-death penalty church is the Catholic Church. These myths should not be used to argue for the death penalty. The United States is the last Western country to implement the death penalty (Catron and Stein-Holmes n.d.:4). Of all execution reported, 92% happened in the United States (36 states/military/Federal government), China, Pakistan, Iraq, and Sudan (Schaefer

Exploring how Japanese managers adapt in the United States Essay

Exploring how Japanese managers adapt in the United States - Essay Example This in turn makes the organizations to send their local professionals to foreign countries. This however happens most of the time. In order to survive in a foreign country, one of the things that will make it easy for you is to understand the culture of your host country. This enables smooth and effective communication. In understanding the culture of that given country, the most important thing that the Japanese learn is in particular what each society and what they display mean. Cultural adaptations should be on the key front when these manager of organizations decide that they are to send their employees to work in a foreign country (Hoecklin 1995). By implementing a moderate level of cultural adaptation in main settings, professionals create more effectual business relationships, in that way furthering tactical corporate goals. Globalization generates new business opportunities for multinational corporations (MNCs) These MNCs increasingly employ expatriation approaches to make t heir entrance in to markets that are new easy and to administer their coworkers. As much as the responsibility of the worker who is sent to a foreign country is very important, the strategy in which they adapt in is surrounded with a lot of danger. Additionally, the emigre also posses multiple risks for instance if their result outcome is low, this leads to major financial hitches to the organization. (Hodgetts 2005). Many expletory studies of how Japanese emigres become accustomed to working in the United States after a while have been conducted at length. The final results recommend that the managers of Japanese origin adapt ways that are way above their normal concrete and vigor in their stay in the United States. It is also to be noted that the bigger the group of emigres, the... For managers to be effectual in becoming accustomed to their know-how and practices in an overseas country, it is clear that they must have fine technical knowledge in management, excellent understanding of local culture that is culture-specific knowledge in addition to high-quality cross-cultural communications abilities. even though it may be fair to presume that all à ©migrà © managers sent abroad have to necessarily be technically capable which may differ in some cases, it should be comprehended that being able to function well in one’s own culture does not automatically imply that one can do well in a different culture. This possibly will not just be due to the lack of cultural knowledge. To be efficient as a manager in one’s own culture does not usually necessitate one to question lots of the cultural suppositions behind one’s actions or to recognize the cause’s actions, whether they are technically necessary or culturally pleasing to attain good outcomes. To be able to transplant management or technical processes in a different culture, or to expand such processes from zero or from accessible local processes, would necessitate one to question many essential suppositions and to set up the fresh premises based on fine perceptive of in cooperation technical and cultural requirements. It is this final feature of technical capability, which is often tricky to identify. Though, such competence are most probably there in people who are inventive in their own culture, such as those who are capable of setting up novel processes and systems to manage with environmental changes at home and to augment organizational efficiency otherwise, such capability could also be found in people who have already a triumphant track record in cross-cultural management.

Tuesday, October 15, 2019

Judicial term Essay Example for Free

Judicial term Essay Forum non convenience is a judicial term used for an inconvenient place of judicial trials for one of the parties involved in the case. In judicial trials if parties involved are not satisfied for the place where their case will be executed they can take a motion to dismiss the case on the basis of forum non conveniens. Any parties involved in the case can submit a proof that the current forum is not sufficient or suitable for them. Instead another place (forum) is more suitable for their case and the dismissal of the case in the current forum is more in favor of both the parties than carrying out in the same forum, and the alternative forum is suitable for both the parties. All the factors of the plaintiff’s and defendant’s interest involved in the decision of dismissal are considered. The balancing between the parties must be equal and favoring them. The facts involved in the forum non convenience grounds are weighed before the decision is taken. Also the convenience of court and the justice itself is considered. Whether it would be convenient to dismiss the case and carried out in another forum would be an appropriate step itself? If it satisfies the needs of both the parties and justice would be more balanced in an alternative forum then court has the right to dismiss the case on the forum non conveniens. This also involves that the new forum will not pose up new issues for any of the parties involved. The plaintiff and defendants must be satisfied with the new forum and will not make it an issue when the trial will be conducted.

Monday, October 14, 2019

Malaysia Is A Fast Developing Country Environmental Sciences Essay

Malaysia Is A Fast Developing Country Environmental Sciences Essay Malaysia is a fast developing country that its change from an agro-based to an industrial nation, has led to an increase in the population. Malaysias population increased rapidly from 6 278 800 in 1957 to an estimated 29,179,952 in July 2012. Thus, the amount of solid wastes generated in Malaysia also increases rapidly. Statistic shows that on average, each Malaysian produces 0.8 kg to 1.2 kg of wastes per day (The Star, 2009). About 23,000 tonnes of wastes are produced each day in Malaysia. However, this amount is expected to rise to 30,000 tonnes by the year 2020 (Global Environmental Centre, 2008). The amount of wastes generated continues to increase due to the increasing population and development. Problem Statement There are different alternatives to reduce, treat and dispose the solid wastes. However, landfill is still the most common practice for solid waste management. Sanitary landfill for solid waste management is defined as an engineered method of disposing of solid wastes on land by spreading them in thin layers, compacting them to the smallest practical volume, and covering them with soil each working day in a manner that protects the environment (Brunner and Keller, 1972). There are 230 official dumping sites in Malaysia, the majority of which are crude landfills, with only 10% providing leachate treatment ponds and gas ventilation systems and with most having no control mechanism and supervision. However, the landfill method causes generation of leachate (Galbrand, 2003). Leachate is defined as a liquid that has percolated through solid waste and has extracted dissolved or suspended materials (EEA, 2005). Leachate occurrence is by far the most significant threat to ground water. Once it reaches the bottom of the landfill or an impermeable layer within the landfill, leachate either travels laterally to a point where it discharges to the groundà ¢Ã¢â€š ¬Ã¢â€ž ¢s surface as a seep, or it will move through the base of the landfill and into the subsurface formations (El-Fadel et al., 1997). Depending upon the nature of these formations and in the absence of a leachate collection system, leachate has reportedly been associated with the contamination of aqu ifers underlying landfills which resulted in extensive investigations for the past four decades (Albaiges et al., 1986; Mann and Schmadeke, 1986). Leachate contains high concentration of organic matter, inorganic matter (sodium chloride and carbonate salt) and heavy metal (Trebouet et al., 2001). Organic matter in leachate results in decomposition by microorganisms and causes oxygen depletion in surface water bodies (Schwartz, 2005). This favours anaerobic conditions which are detrimental to the aquatic life. The anaerobic micro flora is responsible for putrefactive processes which are characterized by the production of different types of toxic and noxious compounds (ammonia, hydrogen sulfide and phosphine) as final products of the organic matter degradation. Oxygen deficiency and toxic substance from anaerobic metabolism cause fish death and impairment of aquatic life. Therefore, since leachate can affect aquatic ecosystems and human health, proper leachate treatment is needed befo re leachate is discharged into receiving water (Paredes, 2003). Nutrients such as nitrate, ammonia and phosphate (along with co-contaminants such as pathogens, chemicals, and animal pharmaceuticals) are also found in leachate. High levels of nitrate, phosphate and ammonia in our lakes, rivers, streams, and drinking water sources cause the degradation of these water bodies and harm fish, wildlife, and human health. For example, at levels above 10 mg/L maximum contaminant level (MCL) in ground water, nitrates can cause human health effects, such as blue baby syndrome to pregnant woman. The current conventional leachate treatment systems are physical-chemical treatment, recirculation of leachate through landfill and biological treatment (El-Gendy, 2003). Physical-chemical treatment includes chemical precipitation, chemical oxidation, ion exchange and reverse osmosis, activated carbon adsorption and ammonia stripping (Ehrig, 1989). Precipitation in physical-chemical treatment is based on the addition of any chemicals to remove suspended solids, nitrogen, phosphorus, ammonia and metal. The physical-chemical treatment processes can produce high quality effluents, adapt to wide variations in flow and chemical composition and have the ability to remove toxic substances from leachate (Shams-Khorzani et al., 1994). However, these treatment systems are difficult to operate and require highly skilled labor besides high capital and operating costs. Some of these processes even require extensive pretreatment process (Britz, 1995). As a conclusion, the conventional treatment sy stems are effective in treating leachate. However, they require highly skilled labour and involve both high capital and operating cost. Therefore, constructed wetland was developed as an alternative to treat leachate in this research since constructed wetland has low cost of construction and maintenance (El-Gendy, 2003). The type of wetland used in this study is a combined system of subsurface flow (SS) and free water surface (FWS) constructed wetland. 1.3 Objectives The main objectives of this study are; To determine the nutrients (phosphate, nitrate and ammonia) removal from landfill leachate using combined subsurface and free water surface flow in constructed wetland between planted and control (without plant) system. To determine the nutrients removal in different hydraulic loading rate (HLR). To compare the percentage removal between subsurface (SS) and free water surface (FWS) in both planted and control system. To determine the uptake of nutrients by plants, Limnocharis flava in the subsurface (SS) and Eichhornia crassipes in free water surface (FWS). 1.4 Scope of Study The scope of this study is leachate treatment by setting up of lab-scaled wetland. The leachate was collected from landfill in Padang Siding and initial concentration of phosphate, nitrate and ammonia were analysed. Then, experiments were conducted with 25% leachate concentration diluted with water in a 60 L container being treated in two different planted and control reactors. Initially, Limnocharis flava plants were planted in the subsurface (SS) tank and Eichhornia crassipes was placed in the free water surface (FWS) tank in planted reactor and left for a few days for acclimatization process while no plant was placed in control reactor. The experiments were conducted with two different hydraulic loading rates which were high hydraulic loading rate (0.55 m/d) and low hydraulic loading rate (0.39 m/d). The efficiency of nutrients removal in leachate was evaluated by few parameters which were phosphate, nitrate and ammonia. The uptake of nutrients by plants in leaf, stem and root was also analysed as well as monitoring the physical plant growth in terms of physical appearance throughout the experiments. 1.5 Importance of Study The research was conducted to evaluate the efficiency of nutrient removal from landfill leachate in a combined system of subsurface and free water surface constructed wetland as well as to determine the nutrient uptake by plants. This nutrients removal was done by phytoremediation process by plants. Phytoremediation is the use of plants to clean up or control many kinds of pollutants including metals, pesticides and oil (McCutcheon, 2008). Phytoremediation is a potential method to treat leachate naturally in low cost. It is an environmentally friendly approach to remove pollutants from leachate. Therefore, phytoremediation can be practically used in landfill sites as constructed wetland to remove nutrients from landfill leachate. The plants used in constructed wetland can be Limnocharis flava in the subsurface and Eichhornia crassipes in free water surface. This research was also conducted to determine the most efficient loading rate for the leachate flow in constructed wetland in removing nutrients effectively. The loading rate plays an important role since the leachate flow also determines the uptake of nutrients by the plants. This research was also conducted to determine the ability of plants, Limnocharis flava and Eichhornia crassipes to uptake nutrients from the leachate.

Sunday, October 13, 2019

Free College Essays - Shakespeares Sonnet 130 :: Sonnet essays

Sonnet 130    Shakespeare was obviously a very deep, passionate and learned man; he was very open with how he felt and was able to express it in a way that was very exact and easy to comprehend.   In his sonnets, which, to me, are like a little diary, he talks a lot about his life involving his mistress as well as a male friend that he may or may not have been involved with.   In Sonnet 130 Shakespeare is talking of his mistress, her faults and his feelings about her an her faults.   the duration of the piece is spent pointing out the faults of this woman and how he thinks that any other man would be simply repulsed by this woman.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   I feel that the format of this Sonnet in terms of content and Shakespeare's feelings served two purposes.   He first wanted to convey the image that even though his mistress was not as fair as one would hope for, they seemed to share some kind of kinship or bond that no other could share with him, not even his wife.   It did not matter to him that she was not as pretty but only that she is on the same wavelength that he is.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Secondly, I feel that he is explaining the fact that he does not necessarily want a "mistress" that is a knockout, and that all of the qualities that other men see in women are not his own and in fact repulses him.   He says in line 13 that he loves the woman and that is rare or extraordinary which I think simply means that he cannot believe that he actually does like another woman that is not beautiful to every extent but she offers something more than just good looks.

Saturday, October 12, 2019

Attitudes Essay -- essays research papers

Attitudes What are attitudes? How are they formed, measured and changed? What degree of influence do they exert on behavior? What important effects does prejudice have on attitudes, and how is prejudice caused? These are all questions that are central to the study of social psychology and, by reviewing the findings of psychological research into these areas, this essay will attempt to provide a balanced explanation of the topic. The fundamental question of what attitudes are cannot be answered easily, as many psychologists offer differing definitions. These range from simply describing them as likes and dislikes, to the definition provided by Tiffin and McCormick, in Attitude and Motivation(1971), where they summarize attitudes as being, â€Å"a frame of reference that influences the individual’s views or opinions on various topics and situations, and influences their behavior.† It is widely accepted, however, that attitudes include both beliefs and values. Beliefs, although considered to be based on the knowledge gained about the world around us, can vary greatly in their importance and influence, and therefore ibn their resistence to change. For instance, an individual’s belief in God is highly influential, not only on its own but also in its effect on many other beliefs held by the individual, whereas a belief that eating late at night may cause indigestion is far less central and inf luential in its effect. Beliefs, both major and minor, form the cognitive component of attitu...

Friday, October 11, 2019

Intel vs AMD Processors Essay

In an age where technology is constantly evolving and the demand for performance is increasing, the central processing unit (CPU), also known as the processor, is a main concern for many computer buyers. There are many considerations that take place when choosing a processor such as whether the computer will be used for storage or gaming, will the user be looking for performance in speed or graphics, and individual budget. Among all the different brands the two biggest companies considered competitors are Intel and AMD. Even though each company may have an edge in certain areas, both companies continue to constantly make changes and improvements to their products in an attempt to remain competitive. The purpose of this comparative paper is to look at both companies to determine if one company’s processor is truly better than the other. Literature Review Performance and value are major considerations when deciding to purchase a new computer. Much of a computers performance is based on the central processing unit also known as the CPU or processor. According to Fisher, â€Å"The CPU could be considered the â€Å"brains† of the computer†¦and is responsible for interpreting and executing most of the commands from the computer’s hardware and software. † In today’s market the two leaders in CPU production are Intel and Advanced Micro Device, Inc (AMD). Depending on a person’s computing needs, one CPU might be better than the other when considering price, speed, and performance. Analyzing each companies product and comparing them will help use determine which processor is best for us. Our first consideration will be speed. If speed is a big concern, which it is for many computer gamers, Intel has shown to be the better product. According to Singh, â€Å"Intel processors give you a higher clocking speed, which means they have a higher frequency of work done per second. † Intel is designed different from AMD because it divides the total work into the smallest possible division and then goes through it in a high frequency. AMD goes through it process at a slower rate but processes more of its data per cycle. For this reason, one can not make the assumption that Intel is better simply because it is the faster processor. In addition, AMD has recently made claims that there new Piledriver processor will present stiff competition for Intel’s latest Ivy Bridge processor. Another consideration is power consumption. In the past AMD use to be the clear winner, their release of the Athlon 64 surpassed the efficiency of Intel’s Pentium 4 processor. Since then, Intel has implemented new power management features and has focused on increasing efficiency. As a result, Intel has beat out AMD and currently has the most efficient processors available. An added benefit to lower power consumption is that the processor dissipates less heat and stays cooler. AMD has been known for heating up faster under intense and heavy duty computing conditions. However, it is speculated that the new generation of AMD processors have taken care of the overheating issues. Gavrichenkov (2011) conducted a comparison of the power efficiency of AMD and Intel Processor and stated: Systems based on processors with integrated graphics cores become increasingly popular not only due to possible system miniaturization. In most cases the users decide to go with them, for cost-cutting purposes. Processors like that help to save some cash not only by omitting the external graphics accelerator, but also by allowing to build a more energy-efficient system with total power consumption being lower than that of a system with discrete graphics. There is another bonus to it: quiet operation modes, because lower power consumption leads to lower heat dissipation and therefore the use of simpler cooling systems. (p. ) The next consideration is overall performance. Depending on your needs, performance can be interpreted in different ways. If you compare processors with the same rating side by side it is clear that Intel is the better performer. But, if you are a gamer you will discover that AMD is the better choice. AMD processors are much more compatible with ATI graphic cards. To many gamers graphics are everything and when looking for a processor to integrate with an ATI graphics card AMD is the best choice. If you do not intend on using you computer for gaming and simply would like computing performance Intel is the better choice. Intel has the best multitasking abilities which according to Singh, â€Å"is the ability to divide work into smaller pieces for faster computing. † The final and to some the most significant consideration is price. This is an area where AMD and Intel are clearly distinguished. Although performance statistics show the Intel is slightly better overall, AMD is priced 20% to 60% cheaper. For gamers who are generally under the age of 30, this difference in price makes AMD the favorable processor. To those who have the money and are looking for performance Intel would be the better choice. According to Shulka (2012), â€Å" (Intel) prices will be slightly on the higher side compared to AMD, but given the consistency, superior performance specs and its downward- traveling energy consumption curve. Intel many not have that much to worry about. † It retrospective, it ultimately depends on what it is you plan on using your computer for.

Thursday, October 10, 2019

Aetiology Of Rotator Cuff Tear Health And Social Care Essay

Throwing jocks are prone to shoulder hurts as a consequence of the high forces placed on the shoulder during the throwing gesture ( Sepp Braun et Al. 2009 ) . The rotator turnup is made up of four sinews that emerge from the shoulder blade and connect to the caput of the humerus. Their map is to stabilise the shoulder. A rotator turnup tear can happen as a consequence from insistent throwing, emphasizing the rotator turnup sinews and bad technique. The hurt in baseball hurlers constitutes a tear in either sinew ( the subscapularis or the supraspinatus ) which are both impinged during the throwing gesture. In this essay I am traveling to depict two mechanisms, one three manner mechanism and one two manner mechanism of how a rotator turnup tear would come about. A three manner disciplinary hurt mechanism could come about get downing with a baseball participant being psychologically excessively mentally tough. While mental stamina can be a great feature in an jock it can besides be damaging to their wellness during athletics. It is an jock ‘s ability to continue when stressors are moving on their head and organic structure but they need to cognize their ain bounds and when it is appropriate to halt for their ain wellness and safety. In the ESPN the Magazine ( May 16, 2011 ) an article was released look intoing the exposures to injury that some jocks have chosen to confront to accomplish their end. There are many illustrations over the old ages were jocks have chosen to disregard warning marks refering their safeness and in some instances have become awfully injured. Socio-cultural factors express attitudes and features that are frequently observed in jocks that promote mental stamina. For illustration attitudes that digesting hurting shows Fe will and strength and reluctance to seek medical aid from fright of being seen as weak ( Wiese-Bjornstal and Shaffer, 1999 ) . Mental stamina can be instilled in an jock through constructing their assurance utilizing challenges and support. This may be from parents, friends or their manager. Most jocks are rewarded for ‘being tough ‘ which enforces the thought that mental stamina is a valuable property and many jocks live by the well-known stating â€Å" No hurting, no addition † . When an athlete becomes excessively mentally tough they may set themselves in danger of hurt. Baseball hurlers need to develop and play, each throw seting huge force on the rotator turnup musculuss of the shoulder. Mental stamina can do a hurler to transport on throwing even when his rotator turnup musculuss are fatigued. The hurler may non cognize of the dangers that he/she is confronting if their shoulder begins to hurt.— — — — — — — — — — — — — — — — — — — — — â₠¬â€ — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —Rotator turnup cryings in hurlers are the consequence of a chronic tear from insistent throwing gesture which impinges one of both of the 2 of the four sinews ( the subscapularis or the supraspinatus ) . If the musculus becomes fatigued so its strength and the force it can use are weakened. ( Carsten Juel, 2006 ) Fatigue is a multifactorial state of affairs and that the confining factors may change with force strength, exercising continuance and musculus type. Coevals of metabolites in the fibers can step in with the release of ca2+ to excite contraction and inhibit reactions in the fibers. Metabolites such as Hydrogen ions ( H+ ) can do the intracellular fluid ( cytosol ) of the cell to go acidic ; this inhibits enzyme activity for bring forthing energy. H+ ions are used in the Creatine Kinase ( CK ) reaction and will displace this reaction to favor PCr dislocation. They besides inhibit Phosphofructokinase which phosphorylates fructose in glycolysis. H+ ions may besides lend to tire via: supplanting of ca2+ from adhering with troponin C, stimulation of hurting receptors in musculus ( could do negative feedback mechanism ) , decelerating the release of ADP from myosin ATPase. Although recent research has shown that intracellular acidosis may really heighten the ability of the T-tubule system to transport on action potencies during weariness ( Pederson et al, 2004 ) . Pederson et Al, Intracellular acidosis enhances the irritability of working musculus. Science 305:1144-1147, 2004 Other subscribers to increased H+ degrees are a decrease of intracellular [ K+ ] , synthesis of CP, and the buffering of CO2 produced in the chondriosome. Intracellular chloride can roll up and do little stimulations which make the fibers contract ( vellication of the musculus ) ; this has the consequence of cut downing the force of voluntary contractions. Potassium ( K+ ) released from action potencies can suppress the release of ca2+ when it builds up around the musculus fiber and in the T-tubule. The K+ changes the electric gradient around the fiber and causes a lessening in the release of ca2+ from the sarcoplasmic Reticulum into the myoplasm. Ca2+ within the myoplasm binds to troponin C, instigates motion of tropomyosin, and allows the cycling of cross Bridgess, which finally result in force development ( Allen et al, 2008 ) . Therefore amplitude of contractions will be reduced if there is less ca2+ to adhere to troponin C. If there is less ca2+ this besides allows for more H+ ions to adhere to troponin C, doing weariness. There are besides effects to muscle weariness concerned with the balance between K+ and Na ( Na+ ) but these take topographic point outside of the musculus fibers in the nervousnesss that innervate the fibers. Substrates within musculus cells normally serve as an energy supply for the cell. Substrates such as ATP, animal starch and creatine phosphate are depleted during exercising. When animal starch is used to bring forth energy lactate and H+ ions are produced as a byproduct. These H+ ions create an acidic environment in the cell that non merely inhibits the action of enzymes but besides block nervus signals from the encephalon. If there is non a sufficient O supply to take the H+ ions so fatigue will put in and the musculus will hold to decelerate down to let oxygenated blood to take the them. If there is non sufficient O so pyruvic acid ( besides a byproduct of glycolysis ) will accept H+ to organize lactic acid which is a well-known term used my jocks and managers. All of these factors I have merely talked about can do weariness. If the musculus begins to go fatigued the cross-bridge rhythm will non be working to its full consequence. This means when the rotator turnup musculuss are used to decelerate the arm down in the slowing phase the actin within the musculus fibers will non be able to adhere to the myosin as strongly. This locking mechanism is critical for keeping the musculus and doing certain that it does non stretch past its tensile strength which would do harm to the tissue ( micro cryings ) .— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —During throwing there are strong musculuss on the anterior plane of the shoulder ( pectoralis major, teres major, latissimus dorsi, subscapularis ) executing internal rotary motion of the humerus ( upwards of 7000 grades a 2nd ) ( Dillman et al, 1993 ) . It is estimated that merely half the force generated is produced from the shoulder, the other half is produced by the lower limbs and bole and travels through a kinetic concatenation to the upper limb. There are five stages of throwing which are wind-up, cocking, acceleration, slowing, and follow-through. There are about 200 grades rotary motion in the humerus during throwing ( 90 external and 110 internal ) so this velocity needs to be decelerated in a really short period of clip. ( Sepp Braun et Al. 2009 ) Show that the continuance of the acceleration stage, is merely 0.05 2nd, the greatest angular speeds and the largest alteration in rotary motion occur during this stage. While the concluding two stages, slowing and follow through last for around 0.35 seconds. In concurrence with this statement Kirchhoff and Imhoff 2010, have shown that in the slowing phase the compressive forces created by the rotator turnup is on norm around 1090 N and shear forces are created on the posterior plane of around 400 N. The rotator turnup musculuss do non hold great endurance and are far weaker than the musculuss on the anterior plane of the shoulder, so it is easy to see how cryings could develop. The supraspinatus is normally the musculus that is torn in baseball hurlers. This is because it is non considered an external rotator ; its chief map is to kidnap the arm. Due to its place it takes the initial strain of the stretch with internal rotary motion. It originates on the top of the shoulder blade to its interpolation on the greater tubercle of the humerus so it is easy to see how it is pulled when maximum internal rotary motion is exceeded. The tensile and shear forces placed on the musculus combine to do a tear to get down. Insistent usage of the rotator turnup musculuss to slow the throwing force can do micro cryings in the musculuss. These micro cryings can increase in figure if the rate of tissue dislocation exceeds the rate at which the organic structure can replace the damaged tissue. Reasoning the information I have provided above, it can been learned that the aetiology of rotator turnup cryings can affect a figure of subjects. This is merely one of the many fluctuations of subjects that work together to do the hurt. Mental stamina has caused a hurler to disregard marks of hurt in the shoulder, after uninterrupted throwing the forces moving on the musculuss fatigue the musculuss and do micro cryings which can develop into big painfull tear.— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — –A two manner disciplinary hurt mechanism could come about get down ing with a baseball hurler under psychological emphasis. Stress is a reaction by the organic structure when the individual feels under force per unit area or overwhelmed by something in the environment around them. It is caused by two things, whether the individual thinks the anxiousness is needed in the state of affairs and how their organic structure reacts to certain cognitive and thought procedures. If a baseball hurler is under emphasis this can do tenseness within the shoulder musculuss. Emotional emphasis can be caused by a figure of things such as jobs at work or a feverish agenda. Hans Selye ‘s GAS ( General Adaptation Syndrome ) theory from 1936 suggests that when emphasis is place upon a individual the individual undergoes 3 phases. The phases are alarm reaction, the phase of opposition and the phase of exhaustion. The dismay phase is described as an acute phase were the cardinal nervous system sends out signals to assorted countries of the organic structure to originate the â€Å" battle or flight responses † . The phase of opposition is when the organic structure begins to reconstruct homeostasis back to normal degrees or if the nerve-racking conditions continue the organic structure adapts and remains in a province of rousing. Lastly is the exhaustion phase, this is when the organic structure ‘s ability to defy the stressors has failed because its energy supply has gone. This is frequently referred to as adrenal weariness or overload. Findingss from research lab experiments ( Forsman et al. , 2002 ; Larsson et al. , 1995 ) show that non merely physical demands but besides cognitive factors and mental emphasis may bring on musculus tenseness. Small, low-threshold motor units are recruited at low degrees of contraction, before larger 1s, and are kept activated until complete relaxation of the musculus. If these recruited motor units are non relieved of their tenseness via exercising or massage etc harm to the motor nerve cells can happen ( Sjogaard et al. , 2000 ) . Therefore long permanent psychological emphasis may maintain low-threshold motor units active causing harm. An experiment ( Lundberg, Forsman et al. , 2002 ) utilizing intra-muscular recordings showed that these low threshold motor units can be activated by mental emphasis aswell as physical emphasis in the trapezius musculus. hypertext transfer protocol: //www.macses.ucsf.edu/research/allostatic/muscle.php # psychobiological Stress can do the baseball hurler to keep their shoulders in an unnatural defensive stance which creates tenseness. When a individual becomes under menace norepinephrine is released from the encephalon as portion of the â€Å" battle or flight † mechanism, this endocrine induced tenseness in the musculuss. If this tenseness is non relieved from the musculuss the musculuss will go stiff and will non hold their full scope of motion.— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — –If the shoulder does non hold full scope of motion because it is tense, its snap will be r educed as the musculus attempts to keep its ego in a inactive province. Every tissue has an elastic bound, this is described as the maximal burden that a stuff can prolong without lasting distortion or harm. Elasticity is needed to convey a musculus back to its normal length after it has been stretched out. Decreased snap can besides do stiffness in the musculus. Hill ( 1968 ) has provided grounds that in normal resting musculus cells, a little grade of cross-bridge interaction occurs and moderate cross-bride interaction occurs in tense musculus. This interaction must lend to evident musculus stiffness and loss of snap. If the hurler has a stiff shoulder with decreased elastic capacity, when they carry out the sequence of throwing stages the musculus will non shorten back to its original length every bit rapidly as when it is non tense. Repeatedly throwing will get down to weaken the musculus even further and the musculus will go even stiffer to seek and protect its ego from over stretching. This alone could do cryings in the musculus. The hurler may disregard the stiffness and seek to work the musculus harder to antagonize the fact that the musculus is stiffening its ego. The hurler will damage the tissues if they carry on and micro cryings will develop which could increase in figure and do one big tear. hypertext transfer protocol: //fionastefani.hubpages.com/hub/PhysiologyofStress In baseball hurlers, the overload of pitching has been linked with hurt and redness of the musculuss of the shoulder girdle composite. Pappas, A.M. , R.M. Zawacki, C.F. McCarthy. 1985. Rehabilitation of the fliping shoulder American Journal of Sports Medicine 13:223-235. Dillman CJ, Fleisig GS, Andrews JR. Biomechanics of fliping with accent upon shoulder kinematics. J Orthop Sports Phys Ther. 1993 ; 18:402-8.— — — — — — — — –Int Orthop. 2010 October ; 34 ( 7 ) : 1049-1058. Published on-line 2010 May 19. Department of the Interior: 10.1007/s00264-010-1038-0 PMCID: PMC29890322.Posterosuperior and anterosuperior encroachment of the shoulder in overhead athletes-evolving constructsChlodwig Kirchhoff and Andreas B. Imhoff— — — — — — — — — — —3.Skeletal Muscle Fatigue: Cellular MechanismsD. G. Allen, G. D. Lamb, and H. Westerblad Department of the Interior: 10.aˆâ€ ¹1152/aˆâ€ ¹physrev.aˆâ€ ¹00015.aˆâ€ ¹2007 Physiol Rev January 2008 vol. 88 no. 1 287-332