Thursday, August 27, 2020
Centrifugal Pump Essay Sample free essay sample
A divergent siphon changes over the info capacity to motor vitality in the fluid by speed uping the fluid by a spinning gadget â⬠an impeller. The most widely recognized sort is the looping siphon. Liquid enters the siphon through the oculus of the impeller which turns at high speed. The liquid is quickened radially outward from the siphon pursuing. A vacuity is made at the impellers oculus that constantly brings increasingly liquid into the siphon. The vitality made by the siphon is active vitality blending the Bernoulli Equation. The vitality moved to the fluid relates to the speed at the fringe or vane tip of the impeller. The quicker the impeller spins or the greater the impeller is. the higher will the speed of the fluid vitality moved to the fluid be. This is portrayed by the Affinity Laws. Weight and Head In the event that the release of a divergent siphon is pointed back to back high up the liquid will siphoned to a specific stature â⬠or caput â⬠canceled the shut caput. We will compose a custom article test on Radial Pump Essay Sample or on the other hand any comparable point explicitly for you Don't WasteYour Time Recruit WRITER Just 13.90/page This maximal caput is predominantly dictated by the outside breadth of the pumpââ¬â¢s impeller and the speed of the pivoting shaft. The caput will adjust as the limit of the siphon is changed. The motor vitality of a fluid coming out of an impeller is hindered by making a resistance in the stream. The primary resistance is made by the siphon packaging which gets the fluid and backs it off. At the point when the fluid hinders the dynamic vitality is changed over to constrain vitality. â⬠¢ it is the resistance to the pumpââ¬â¢s stream that is perused on a power for each unit region gage joined to the release line A siphon does non make power per unit region. it just makes stream. The check power per unit territory is an estimating of the restriction to transition. In liquids the term caput is utilized to mensurate the dynamic vitality which a siphon makes. Head is an estimating of the stature of the fluid section the siphon could make from the dynamic vitality the siphon prov ides for the fluid. â⬠¢ the main ground for using caput on the other hand of power per unit region to mensurate a divergent pumpââ¬â¢s vitality is that the power per unit region from a siphon will modify if the particular attraction ( weight ) of the fluid changes. however, the caput will non The pumpââ¬â¢s open introduction on any Newtonian liquid can ever be depicted by using the term caput. Various Types of Pump Head â⬠¢ Total Static Head â⬠Total caput when the siphon is non running â⬠¢ Total Dynamic Head ( Entire System Head ) â⬠Entire caput when the siphon is running â⬠¢ Static Suction Head â⬠Head on the pull side. with siphon away. on the off chance that the caput is higher than the siphon impeller â⬠¢ Static Suction Lift â⬠Head on the attractions side. with siphon away. in the event that the caput is lower than the siphon impeller â⬠¢ Static Discharge Head â⬠Head on release side of siphon with the siphon off â⬠¢ Dynamic Suction Head/Lift â⬠Head on attractions side of siphon with siphon on â⬠¢ Dynamic Discharge Head â⬠Head on release side of siphon with siphon on The caput is estimated in either pess or meters and can be changed over to normal units for power per unit territory as pounds per square inch or cantina. â⬠¢ it is of import to comprehend that the siphon will siphon all liquids to a similar stature if the pole is turning at similar cycles every moment The solitary distinction between the liquids is the aggregate of intensity it takes to gain the pole to the correct cycles every moment. The higher the particular attractive energy of the liquid the more force is required. â⬠¢ Centrifugal Pumps are ââ¬Å"constant caput machinesâ⬠Note that the last is non an unchanging power for every unit territory machine. since power per unit territory is a guide of caput and thickness. The caput is immutable. regardless of whether the thickness ( and henceforth power per unit zone ) changes. The caput of a siphon in metric units can be communicated in metric units as: H = ( p2 â⬠p1 )/( ? g ) + v22/( 2 g ) ( 1 ) whereH = whole caput created ( m )p2 = power per unit territory at trade foundation ( N/m2 )p1 = power per unit zone at break ( N/m2 )? = thickness ( kg/m3 )g = increasing speed of attraction ( 9. 81 ) m/s2v2 = speed at the commercial foundation ( m/s )Head depicted in basic footingsâ⬠¢ a pumpââ¬â¢s opposite release ââ¬Å"pressure-headâ⬠is the opposite lift in stature â⬠ordinarily estimated in pess or m of H2O â⬠at which a siphon can nolonger apply bounty power per unit territory to travel H2O. Now. the siphon might be said to hold arrived at its ââ¬Å"shut-offâ⬠caput power per unit region. In the stream bend outline for a siphon the ââ¬Å"shut-off headâ⬠is the point on the diagram where the stream rate is zero Siphon Efficiency Siphon productivity. ? ( % ) is a stage of the proficiency with which the siphon transportations utile work to the liquid. ? = Pout/Pin ( 2 )where? = effectiveness ( % )Pin = power inputPout = power final result
Saturday, August 22, 2020
Tragedy at Lumbaââ¬â¢s Bend Essay
Five men were slaughtered early at the beginning of today by a rashly detonated impact. Words flew quick in the town, and after a short time there was a group accumulated close to the area of the mishap. Notwithstanding, not one of them could come exceptionally approach in light of the fact that the stones and earth on the mountain side despite everything rolled occasionally. We know were working in the mines didn't yet have the foggiest idea about that there had been a mishap. We possibly came to know about it when we are having our wreckage. Conceivably it was either Demetrioââ¬â¢s group or Pitoââ¬â¢s pack that had died, yet so far we were unable to be sure. After the wreckage we tumbled to work once more, yet a large number of the individuals who were by and by familiar with men of Demetrioââ¬â¢s or Pitoââ¬â¢s group couldn't work well indeed. I myself was an extraordinary companion of Demetrio, and I was unable to get my considerations far from him. At the point when m y day of work came, I crept out of the gap and found that few of my companions had just elected to uncover the bodies. When we entered the town, we were met by various energized ladies and kids. They disclosed to us that just one of Demetrioââ¬â¢s men had gotten away from death, and even he was in an intense condition. He had been taken to the hospitalâ⬠¦.So it was truly obvious that Demetrio had kicked the bucket. We passed by the hovel where we boarded, and I felt an ache. I could just gaze blankly at the elderly person who was watching out of the window. She was our incidental washer lady, and now she had carried a perfect suit to the cottage so that when Demetrioââ¬â¢s body was discovered we could without much of a stretch put on something else. My mates saw her likewise, yet not one of us ended the quiet. Rather we rushed to the shop where the organization kept it apparatuses, and requested executes. There were at that point various men unearthing the mountain side, and they were working with irate scramble. Be that as it may, as there was as yet a recognize what to do, for she just remained there unstably, trembling and widly gazing around. She was pale and her eyes had the opening of an idiotââ¬â¢s look. Her dress had been torn in spots, and her hair hung in clutter. For a period, she appeared to impart a similar enervation to us, and we stood quiet and careful, as though hanging tight for her first move. Her wails were becoming more fragile and more vulnerable. At long last, they were just similar to occupied murmurs. However, after her eyes stopped on us, remaining there quietly watching her, she broke into a boisterous attack of sobbing. She suddenlyâ knelt down on the ground, secured her face with her hands, and cried stronger. A portion of the men moved toward her and attempted to quiet her, however when ameliorating hands were laid on her shoulders, she flung them away and yelled that she be disregarded. For a period we didn't have the foggiest idea how to manage her. Later on, in any case, her folks came and coaxed her io returning to town. She strolled between her folks, crying like a kid. By dusk we had discovered just two bodies. One was that of Busio. The other was so extensively distorted that it was not unmistakable up 'til now. We put the bodies on improvised cots and conveyed them to the town. An agent from the organization met us in the town and dealt with the bodies. With him was an embalmer from the funeraria around who started to treat the bodies so they would go on until the organization got word from the groups of the dead men concerning what was to be finished with the bodies. A vehicle from the f uneraria went to the town and conveyed the dead to town. It is the arrangement of the organization to repay the group of a specialist who meets with a mishap while working for the organization. The organization pays thirty pesos to the family that is eager to let the organization cover the dead. In any case, if the family needs to have the body, the organization bears the transportation of the remaining parts to the family, however doesn't feel obliged to pay any more cash. As a rule, nonetheless, it sends five or ten pesos as a kind of reassurance to the deprived family. We viewed the vehicle hurry away, and when we were unable to see any longer, we discussed the mishap. I moved starting with one gathering then onto the next, incapable to decide to return home. What's more, despite the fact that they spoke for the most part about the mishap and I was starting to feel that I was unable to stand it any more, yet I was unable to go anyplace else for I would not like to be separated from everyone else and be left to my own considerations. Maybe it was only my creative mind, yet I appeared to detect that the air in the town had gotten foreboding and unobtrusively reminiscent of death. The town was normally calm, as though these laborers who toiled in consistent peril had been carried excessively near the truth of their risk. The ladies were so unusually stifled. I hurried away from them and went to the hovel where I boarded. I figured I could rest effectively after such an exhausting day, however I was mixed up. After I had turned off the light, the murkiness abused me and I appeared to hear the breathing of Demetrio adjacent to me. I hurriedly relighted the lamp fuel light, however even the light couldn't disperse my apprehension, so I descended the house and went to an open-all-nightâ restaurant. There were numerous individuals there and they talked uproariously. I was happy when finally the black out flicker of sunrise broke not too far off. Outside the eatery, the lanes were at that point crowded with men heading off to the mines. The men who had been in the foundation likewise came out, some returning home to rest and others going to work. I had my morning m eal, and when I went out I fell in with a bundle that was going to uncover the dead. By the center of the evening, we had removed the last body. This with two others we had recently found were set in the holding up vehicle sent by the funeraria and taken to town. I had seen Demetrioââ¬â¢s taken from under a tremendous stone, and in certain parts it looked as though it had been ground to a mash. Indeed, even before the stone had squashed him, he had just slaughtered by the impact. One of his arms had been torn away and his face has been damaged to such an extent that rather than a face, he had darkened, crude crush of tissue. Seeing him extraordinarily alarmed me and a portion of the men who burrowed with us dismissed. Pepe, who had been a good ways off from the others of Demetrioââ¬â¢s men when the mishap happened, was not all that horrendously ravaged, yet he was a limp as though all the bones in his body had meltedâ⬠¦. After the vehicle had left, we gradually wended our way back to the town and restored the executes we had obtained. In answer to the wires conveyed the organization after the mishap, two of the families answered that they would let the organization cover their dead. One of the men who kicked the bucket didn't have any family and no one appeared to know where he originated from either. Demetrioââ¬â¢s spouse answered that she would have his body, and Pepeââ¬â¢s remains were taken by his better half. TONE: Turns out Sadly for the characters frequently with the greater part of them biting the dust. Characters: Demetrioââ¬â¢s posse Pepitoââ¬â¢s posse Pepe Elderly person an intermittent washer lady
Friday, August 21, 2020
Blog Archive Haas School of Business at the University of California, Berkeley, Essay Analysis, 20182019
Blog Archive Haas School of Business at the University of California, Berkeley, Essay Analysis, 2018â"2019 *Please note: You are viewing an essay analysis from the 2018-2019 admissions cycle. Click here to view our collection of essay analyses for the current admissions season. Last year, we noted that the Haas School of Business at the University of California, Berkeley, seemed to have begun embracing the less-is-more movement with regard to its application essays, having cut back its required submissions slightly, and this year, the program seems to have adopted that mind-set a little more (with the exception of its optional essays). It has gone from three mandatory essays down to two and changed the bulk of its career-focused question from an explanation of the past to a projection into the future. As for that aforementioned optional essay, Berkeley-Haas has broken unique ground with an elaborate questionnaire prompt that appears complicated at first but is actually rather straightforward. Overall, candidates still have a good opportunity to present a well-rounded impression of themselves to the school, from who they are today to the professional they expect to be in their projected career. Our full analysis of Berkeley-Haasâs updated essay questions f ollows Interested in learning how to tackle this yearâs Berkeley Haas application essays? Watch the short video below before you continue reading the full analysis! Essay #1: Tell us a six-word story that reflects a memorable experience in your life-to-date. Elaborate on why it is meaningful to you. (300 words maximum) Before you start hyperventilating, let us reassure you that you absolutely can convey a meaningful and compelling story in just six words. Perhaps the most famous example of this is Ernest Hemingwayâs famous âsix-word novel,â which reads, âFor sale: baby shoes, never worn.â In fact, entire Reddit, Pinterest, and Tumblr pages are dedicated to these succinct narratives, and several publications and Web sites have regular contests to see who can craft the best six-word tales. So, Berkeley-Haas may not be the first to come up with the idea, but it does appear to be the first business school to make it a part of its application! In addition to presenting several examples for applicants on its team Web page, the Berkeley Haas admissions committee offers two key pieces of advice for this essay in a video application tip: using contractions (e.g., itâs, canât, wonât, didnât) is totally acceptable, and perfect grammar is not necessary. These are both important space savers. Thankfully, the school also gives you a 300-word essay in which to further elaborate on your mini story (up from 250 words last season), so you can expound on some elements of the narrative that may not be immediately understood, but take care to not use that portion of this essay response to simply retell your story in more detail. Start by thinking carefully about how you want to present yourself as an applicant and an individual, and consider what you might say in your other essays for the program, to ensure that each piece you submit is complementary of the others and offers something different about you. You might consider this first essay the âcolorfulâ essay and the other one the more âseriousâ submission. In this one, you have a special opportunity to provide a window into your life experience and personality. Your six-word story should captivate and intrigue the admissions reader, leaving him or her wanting to learn more. (Almost by definition, the reader will be enveloped in mystery!) Then, the second, 300-word portion of the essay should unravel any mystery, illuminate your character, and clarify the significance of the core narrative in who you are today, thereby giving the admissions committee a critical sense of understanding. Essay #2: Briefly describe your immediate post-MBA career goal, and discuss how it will put you on a path to a meaningful and rewarding career. (300 words maximum) Yet again, Berkeley-Haas has reframed its career-focused essay prompt. This year, rather than asking about candidatesâ âprior experiencesâ and the foundation/impetus those have provided, the admissions committee asks applicants to discuss how their first post-MBA position will be the initial chapter of an ultimately fulfilling professional story. The school knows only too well that many candidates change their career goals during the course of the MBA program, given their exposure to new people, ideas, and options, so focusing on an applicantâs immediate post-graduate aspiration allows the admissions committee to assess where that individual is right now in his/her thinking and development. The concept of motivation is key, so you want to demonstrate that you are a forward-thinking person who sees business school as a vital step on your professional and personal journey and truly understands how the experience fits into your vision of your future. Also, take special note of t he words âmeaningful and rewardingâ in the schoolâs prompt. Berkeley-Haas wants to know that you are pursuing an MBA because you are passionate and enthusiastic about the career you envision will follow, that it appeals to you in a personal and significant wayâ"not just as a potential path to a bigger paycheck or fancy title (or worse, that you simply feel you are supposed to get an MBA for some reason). So be sure to have that excitement and drive show in your response by being authentic and demonstrating that you have truly thought about your path and are eager to get started. The elements this essay question demands are ones typically included in a standard personal statement essay, so we encourage you to download your free copy of the mbaMission Personal Statement Guide, which we created to help applicants write this style of essay for any school. It explains in further detail how to consider and present your career goals in essay form, with examples, so be sure to claim your complimentary copy today. Optional Information #1: We invite you to help us better understand the context of your opportunities and achievements. What is the highest level of education completed by your parent(s) or guardian(s)? Did not complete high school High school diploma or equivalency (GED) Associates degree (junior college) or vocational degree/license Bachelors degree (BA, BS) Masters degree (MA, MS) Doctorate or professional degree (MD, JD, DDS) What is the most recent occupation of your parent(s) or guardian(s)? Unemployed Homemaker Laborer Skilled worker Professional If you were raised in one of the following household types, please indicate. Raised by a single parent Raised by an extended family member (grandparent, aunt/uncle, niece/nephew, cousin) Raised in a multi-generational home Raised in foster care 4.What was the primary language spoken in your childhood home? If you have you ever been responsible for providing significant and continuing financial or supervisory support for someone else, please indicate. Child Spouse Sibling Parent Extended family member (grandparent, aunt/uncle, niece/nephew, cousin) Other Please elaborate on any of your above responses. Alternatively, you may use this opportunity to expand on other hardships or unusual life circumstances that may help us understand the context of your opportunities, achievements, and impact. (300 words maximum) Optional Information #2: This section should only be used to convey relevant information not addressed elsewhere in your application. This may include explanation of employment gaps, academic aberrations, supplemental coursework, etc. You are encouraged to use bullet points where appropriate. Although the schoolâs first optional essay prompt is somewhat elaborate, it is not necessarily all that complicated, and we imagine it will offer certain applicants an easy way of highlighting particular elements of their background without having to try to fit them into a different essay. The school clearly wants direct information and basic explanation(s) from this option, so simply answer the questions and succinctly provide any necessary clarifications using the allocated word count. The second optional essay prompt asks applicants to focus specifically on information they deem most ârelevant,â and the lack of a word limit means candidates can fully explain whatever they feel the admissions committee truly must know to be able to evaluate them fully and fairly. This is not, however, a blank-slate invitation to dump every bit of remaining information about yourself that you feel the school is lacking. And however difficult, avoid the temptation to simply reuse a strong e ssay you wrote for another program here or to offer a few anecdotes you were unable to incorporate into your other Berkeley-Haas essays. Be judicious in your use of this opportunity, and submit an optional essay only if you truly believe a key element of your story or profile is needed for the school to have a complete and accurate understanding of you as a candidate. Consider downloading your free copy of our mbaMission Optional Essays Guide, in which we offer detailed advice on when and how to take advantage of the optional essay (including multiple sample essays) to help you mitigate any problem areas in your profile. And for a thorough exploration of Berkeley-Haass academic program, unique offerings, social life, and other key characteristics, check out the mbaMission Insiderâs Guide to UC Berkeley Haas School of Business, which is also available for free. The Next Stepâ"Mastering Your Berkeley-Haas Interview: Many MBA candidates find admissions interviews stressful and intimidating, but mastering this important element of the application process is definitely possibleâ"the key is informed preparation. To help you on your way to this high level of preparation, we offer our free Interview Primers. Download your free copy of the Berkeley-Haas Interview Primer today! Share ThisTweet 2018-2019 Berkeley-Haas Business School Essays MBA Essay Analysis
Monday, May 25, 2020
Who Moved My Cheese Book Report Essay examples - 628 Words
The book ââ¬Å"Who Moved My Cheese?â⬠is a simple story about mice and ââ¬Å"little peopleâ⬠that helps readers handle and deal with changes in their lives. The story is about two mice and two human-like individuals named ââ¬Å"little peopleâ⬠(who are the size of the mice). The two miceââ¬â¢s names are Scurry and Sniff. The two little peopleââ¬â¢s names are Hem and Haw. The story takes place in a ââ¬Å"mazeâ⬠and the characters look for ââ¬Å"cheeseâ⬠to nourish them in the maze. When the characters find cheese, only to have it disappear, they experience change. The different characters show different ways of responding to this change and teach lessons that can be applied to our daily lives. Before I get to the main story line, let me explain the symbolism behind theâ⬠¦show more contentâ⬠¦When he found his way through the maze to Cheese Station N, he wrote all these things on the wall of the station. He applied all these principles to his daily life and changed the way he lived compared to his life at Station C. When changes happen in your life, you can choose to be like Sniff and Scurry, like Hem, or like Haw. Sniff and Scurry kept things simple. They didnââ¬â¢t overanalyze or overcomplicate things. They simply moved on. Hem, he didnââ¬â¢t move on. He stayed in misery and didnââ¬â¢t realize that he needed to change with the change -- move with the cheese. Lastly, theres Haw. He had to learn from his mistakes and laugh at his previously self and move with the cheese. I hope that we can all not make the mistake that Hem and Haw made and learn to deal with change by going with the flow and moving with the cheese! Who Moved My Cheese - Spencer Johnson -Show MoreRelatedWho Moved My Cheese By Spencer Johnson1559 Words à |à 7 PagesIdentification In the book Who Moved My Cheese? by Spencer Johnson, out of the four main characters, I most resemble the little person Haw. Right away, it was obvious I was not like the mice. I am a thinker. Sniff and Scurry reacted far too immediately for me. When the change happened, they were already out in the maze seeing what they could find. Change tends to affect me more heavily than it did the mice. I tend to use a combination of brainpower and emotion when I am looking for my Cheese just like HemRead MoreImplementation Of The Loan Resolution1259 Words à |à 6 Pagesforbearance module on the host system for tracking purposes. 6. All forbearance plans must include the following documentation: Completed financial information request, proof of income (such as Bank statements, Income tax return, etc.), current credit report, and a debt ratio analysis. This information may differ based on investor requirements. It is the responsibility of the Loan Resolution Counselor to document the host system with all written and verbal financial data obtained from the customer.Read MoreDescriptive Essay About American Dream1595 Words à |à 7 Pagesincluding those who never knew where is America located in this global, how large it is? Or what it has? Why there are so many people want to live here? On March 20, 2011. My family and I moved to America after our immigration documents were completed. Before I moved when I was still in Vietnam, I was about 12 years old all I cared was about ââ¬Å"Finally, after 10 years, we can go on the plane.â⬠I so excited because of that colossal bird. I remembered when I stood near the windows, in front of my eyes, I sawRead MoreGuidelines For A Successful Company1269 Words à |à 6 Pagesprocesses, accountability, alignment, social responsibility and sustainability. According to Gebler if an organization thrives in each of these areas then they will be a successful organization where employees feel safe to state their opinions and report any unethical behavior. The most important area for a company to thrive in is financial stability. ââ¬Å"Every organization needs to make financial stability a primary concernâ⬠(Gebler, 2006, p.33). A company needs to be able to manage their money efficientlyRead MoreJD Salinger Research Paper1671 Words à |à 7 Pagesa fascinating author best known for his novel, Catcher in the Rye. Although Salinger only published one novel, he wrote several short stories for magazines like The New Yorker and Story. A large number of these stories went on to be compiled into books such as Nine Stories, Franny and Zooey, and Raise High the Roof Beam, Carpenters and Seymour: An Introduction. Despite the fact Salinger has not published any stories in over 45 years, his reputation is still quite popular. Salingers stories are studiedRead MoreEssay about The Poor Law Amendment Act and Tackling Poverty2908 Words à |à 12 Pageschildren a man had. The 1834 Poor Law Amendment Act The 1834 Poor Law Amendment Act was introduced as a result of Earl Grey, the Prime Minister, setting up a Poor Law Commission to examine the working of the poor Law system in Britain. In their report published in 1834, the Commission made several recommendations to Parliament. As a result, the Poor Law Amendment Act was passed. Indoor relief in workhouses replaced outdoor relief (money or goods, that enabled the poor to stay in their own homes)Read MoreParticipative Leadership Theory : Dr. Barbara Shaws Leadership Practice1541 Words à |à 7 Pagesemployeeââ¬â¢s creativityâ⬠(2015, p. 851). As an example of this, Dr. Shaw relies on cross-functional teams to fully develop and implement professional development projects, where the team makes the decisions. The only requirement to this empowerment is to report to Dr. Shaw, any obstacles or difficulties found in the process, thus allowing her to intervene when necessary only. This strength benefits the departmentââ¬â¢s performance and frees up her time from the day-to-day decisions, allowing her to focus onRead MoreMcdonal Class 12 Project7889 Words à |à 32 PagesENTREPRENEURSHIP PROJECT PROJECT REPORT AND MARKET SURVEY OF MCDONALDââ¬â¢S Name of the school : SHARJAH INDIAN SCHOOL NAME OF THE STUDENT : DAN K. JOHN CLASS : XII-E CBSE ROLL NO. : ACADEMIC YEAR : 2012-2013 TEACHER IN CHARGE : MR. JAMES THOMAS INDEX SL. NO. | TITLE | SOURCE OF THE PROJECT | PAGE NO. | SIGN OF THE TEACHER | 1 | ACKNOWLEDGEMENT | - | | | 2 | FAST FOOD RESTAURANTAN INTRODUCTION | www.wikipediaRead MoreWendys7606 Words à |à 31 PagesWendy Company Report to the Turnaround Committee Prepared By: ABC Consulting, LLC Bryant Perez August 12, 2013 TABLE OF CONTENTS Page Executive Summary Background Competition and the Market Field Reports and Competitive Analysis Problems Recommendations Summary Pro-Forman Income Statement Pro-Forma Balance Sheet Notes to Pro-Forma Statements Appendix A: Competitors amp; Ratios Appendix B: Field Reports AppendixRead MoreEssay on Comparing American Culture and Latino Culture1975 Words à |à 8 PagesMexico, the Caribbean, Central America, and South America, there are many misconceptions that Latinos are only people who come from Spanish-speaking countries, but in this category we can also include countries like Brazil whose primary language is not Spanish but Portuguese. The term Hispanic means people who come from a country where Spanish is spoken. And the term Latino means someone who comes from Latin America. Because of our Latin American origins, Hispanic Americans are also called Latinos. Within
Thursday, May 14, 2020
Extraction of Caffeine from Tea Leaves - 1151 Words
Extraction of Caffeine from Tea Leaves Introduction Caffeine is soluble in boiling water and as a result it is easily extracted from tea bags by steeping in hot water. This process leaves behind the water insoluble portions of the tea bag. However, water extracts more than just caffeine, so a final separation is done with an organic solvent that will dissolve primarily caffeine. The organic solvent used in this experiment is Dichloromethane (CHâââClâââ). Dichloromethane is less polar than water and this difference in polarity allows the separation. Extraction of the tea with the Dichloromethane, followed by evaporation of the organic solvent leaves crude caffeine, which on sublimation yields a relatively pure product. Sublimation isâ⬠¦show more contentâ⬠¦On the TLC plate our tea extract traveled almost the same distance as pure caffeine. The Co-spot traveled the exact same distance as the pure caffeine. The Rf values for caffeine and the Co-spot were 0.166. The Rf value of the tea extract was 0.133. The diff erences in the spots could be due to some impurities in the tea extract and differences in concentration of each spot. After the sublimation 0.003g of pure caffeine was scraped from the test tube. The melting point range of the pure caffeine was tested and found to be 237-239 degrees Celsius. The actual melting point of caffeine is 238. Conclusion The results of the TLC plate showed that the tea extract was very close to the sample of pure caffeine. It was slightly off possibly due to impurities that remained in the tea extract. The caffeine weighed in the flask after the liquid-liquid extracted was 0.012g, which was different from the weight of the caffeine obtained after the sublimation. This difference was likely due to impurities in the caffeine before being purified by sublimation. The caffeine that was extracted from the sublimation experiment had a melting point of 237-239 degrees Celsius, which is the same as the reported value for caffeine. The sublimation resulted in having a totally pure extract of caffeine. Questions 1. Why is sodium chloride added to the tea solution beforeShow MoreRelatedUsing Solid Liquid Extraction Of Caffeine From Tea Leaves867 Words à |à 4 PagesThe purpose of this experiment was to use solid-liquid extraction to isolate a crude sample of caffeine from tea leaves and then subsequently purify the isolated sample via sublimation. The two solvents used in the extraction were water and dichloromethane. In addition to caffeine, tea leaves also contain other compounds that must be dealt with including cellulose, proteins/pigments, tannins, and saponins. Cellulose is not soluble in water as a result of its high molecular weight and thereby doesRead MoreCaffeine Lab Report769 Words à |à 4 Pagesthe experiment caffeine [C8H10N4O2], is based on a series of procedures. Firstly, it is important to examine the structure of caffeine which is an alkaloid. Typically alkaloids are nitrogen based and found in plants, caffeine itself is composed of a purine ring with functiona l groups of a amide, amine and alkene respectively. Furthermore, Caffeine includeds a lone pair on the nitrogen atom asserting several functional properties(Zhao et al. 206). Under examination of the caffeine structure severalRead MoreEffectiveness Of An Extraction Process And Purification Process955 Words à |à 4 Pageseffectiveness of an extraction process and purification process by sublimation is observed and used to selectively separate caffeine from teabags. In the first part of the experiment, water soluble materials, including caffeine, within the teabags are extracted into hot water because the solubility of caffeine in water increases as temperature increases. This is due to the concept that increasing kinetic energy through increasing temperature will allow the molecules in the solute to break apart from the intermolecularRead MoreEssay Separation of Benzoic Acid and Acetanilide1243 Words à |à 5 PagesReport 13 October 2011 Table of Contents Separation of Benzoic Acid and Acetanilide 3 Extraction and Purification of Caffeine from Tea 4 Extraction of Trimyristin from Nutmeg 5 Conversion of t-butanol to t-butyl chloride 6 Appendix 7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine IR 11 Experimental Trimyristin IR 12 Literature Trimyristin IR 13 Experimental Tert-Read MoreEssay Acid Base Extraction1511 Words à |à 7 Pages Acid Base Extraction The purpose of this laboratory assignment was two-fold, first, we were to demonstrate the extraction of acids and bases, finally, determining what unknowns were present. Second, we were to extract caffeine from tea. These two assignment will be documented in two separate entities. Introduction: Acid/base extraction involves carrying out simple acid/base reactions in order to separate strong organic acids, weak organic acids neutral organic compounds and basic organic substancesRead MoreExtraction Of Caffeine From Tea1878 Words à |à 8 Pages EXTRACTION OF CAFFEINE FROM TEA Abstract The method used to separate the organic compound from a mixture of compound is the extraction. It is done by the dissolving of one or more compounds in a good solvent. The solvent which was used in this experiment was 15 ml of dichloromethane into 125ml of water. Caffeine was extracted from 9.19 g of TAZO Awake English Breakfast. Caffeine is soluble in water in 2.2 g/ml at 20 C; it is more soluble than dichloromethane which has 10.2g/ml at 20Read MoreThe Role of Caffeine in Society Essay970 Words à |à 4 PagesCaffeine plays an enormous role in society today, from coffee to cokes to candy bars. Companies have made billions off the desire for that extra kick. Caffeine is the most widely consumed behaviorally active substance in the world making it one of the worldââ¬â¢s most popular drugs. Itââ¬â¢s known for the ability to stimulate the brain and central nervous system. The Chemical structure of caffeine is C8H10N4O2. Before the popular use of caffeine one can assume that peop le were sleepier, and less alert. ConsumptionRead MoreEffects Of Caffeine On Our Lives891 Words à |à 4 PagesBiology 30 October 2017 Caffeine Caffeine is one of the most consumed substances in the world. The majority of people consume caffeine as part of their everyday lives. It helps us feel ââ¬Å"aliveâ⬠in the morning, by giving us the energy and focus that we need throughout the day. Caffeine has many benefits, some of which most people do not even know about. For a drug so commonly used, little attention is paid to the dangerous properties of caffeine products. Because caffeine is part of our everyday livesRead MoreUsing The Solid Liquid And Liquid Extraction Techniques For Extract A Strong Acid1613 Words à |à 7 Pages Extraction Aleigha Spaulding Joseph Osazee 10-6-15 Abstract: This report presents the percentage recoveries found when using the solid-liquid and liquid-liquid extraction techniques to extract a strong acid, weak acid, base, and neutral compound from a mixture. During the solid-liquid section of the experiment, 0.5 M NaHCO , 0.5 M NaOH, 0.5 M HCl, and distilled water are used to dissolve and separate the acid, phenol, and amine solutions from the mixture, leaving the neutralRead MoreIsolation of Caffeine from Tea Leaves1831 Words à |à 8 PagesIsolation of Caffeine from Tea Leaves Introduction Caffeine is a member of the class of compounds organic chemists call alkaloids. Alkaloids are nitrogencontaining basic compounds that are found in plants. They usually taste bitter and often are physiologically active in humans. The names of some of these compounds are familiar to you even if the structures arenââ¬â¢t: nicotine, morphine, strychnine, and cocaine. The role or roles these compounds play in the life of the plants in which they are found
Wednesday, May 6, 2020
The Post Apocalyptic Genre And Anxieties Everyday Life
The Post-Apocalyptic Genre and Anxieties Everyday Life Naturally, a person who is facing anxiety might may pull away from conditions that have triggered similar feelings in the past. Anxieties are of different types including existential anxiety which results from facing an existential crisis, angst, and nihilistic feelings. Other categories of anxiety are test anxiety, stage fright, stage fright, and somatic anxiety. Stranger anxiety and social anxiety occur when a person is around a strangers (Karam et al.). Such anxieties are evident in The Road, and McCarthy illustrates this in a verbose way. Anxieties in the road are both short term and long term. Whereas long-term anxieties are mainly worried about what will befall them in during the uncertain times. Unlike anxieties in today s real world, anxieties in the road are not treated in conventional ways. There are no psychologists to attend to the fears of the people in The Road. The only remedy is love from family. The unnamed father in the road takes care of his son with a lot of love. The young boy and his father love and care for each other all the time to cover for the anxiety. The author remarks that the boy hangs on to him all the time in fear of the unknown. The small boy seeks refuge and love from his father. When the father attempts to leave the boy to go and look for firewood, the boy cries and claim that he is afraid to be left alone. This depicts the fear he feels, especially if he is left alone. The young boyShow MoreRelatedThe Social Structures Of A Destroyed World Essay2212 Words à |à 9 Pagesdistinctive traits that make them an individual. In the genre Science Fiction, apocalyptic text is extensive as it explores the social structures of a destroyed world. Thus, the human mind is an important aspect to explore when creating apocalyptic material. Remember, every person is unique and handle situations differently. In theory, humans are biologically designed to survive by all means necessary, in a broad sense to continue the protection of life. The way a personââ¬â¢s behavior switch from nonviolentRead MoreStylistic Analysis of Zombieland Essays1153 Words à |à 5 Pageslit daily life locations. The lighting is mainly high key, which emphasizes the use of the setting since this kind of lighting gives an upbeat mood to the scene. The establishing shot of the post-apocalyptic world is mainly lit low-key to show how annihilated the world is. Natural light is not often used. Although the setting and lighting are not stereotypical horror they are all stereotypical for television, like sitcoms and comedies, which is what the film is going for since its main genre is ComedyRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words à |à 656 PagesPerspectives on the Past, edited by Susan Porter Benson, Stephen Brier, and Roy Rosenzweig Also in this series: Paula Hamilton and Linda Shopes, eds., Oral History and Public Memories Tiffany Ruby Patterson, Zora Neale Hurston and a History of Southern Life Lisa M. Fine, The Story of Reo Joe: Work, Kin, and Community in Autotown, U.S.A. Van Gosse and Richard Moser, eds., The World the Sixties Made: Politics and Culture in Recent America Joanne Meyerowitz, ed., History and September 11th John McMillian
Tuesday, May 5, 2020
ââ¬Åthe Fender
ââ¬Å"the Fender-Benderâ⬠Essay Analysis of ââ¬Å"The Fender-Benderâ⬠Ramon ââ¬Å"TIANGUISâ⬠Perezââ¬â¢s ââ¬Å"The Fender-Benderâ⬠provides some insight on the thought process of being an illegal alien. In this essay Mr. Perez is expressing to the reader that even a small accident could cause huge problems. One such problem could be the possibility of being sent back to his native country. ââ¬Å"Without immigration papers, without a driving permit, and having hit another car. I feel as if Iââ¬â¢m one step away from Mexicoâ⬠. (Pg. 79) Mr. Perez uses ââ¬Å"Narrationâ⬠and Definitionâ⬠to try and gain the readerââ¬â¢s attention. It appears that the thesis is about an immigrantââ¬â¢s fight to remain in this country with or without the proper paperwork required. Mr. Perez takes responsibility for the accident but does not think he should be treated differently than anyone else. Not having the papers necessary to prove who he is, appears to the reader to be of no conscience to Mr. Perez. ââ¬Å"Minor, only a scratch on the paint and a pimple-sized dentâ⬠(Pg. 79) is how Mr. Perez describes to the reader how small and insignificant the accident appeared. His tone is somewhat anxious. Mr. Perez uses his words to change his meaning in the beginning when talking about his driverââ¬â¢s license. He wants to pay for the damage instead of getting the police involved. This is not an uncommon practice for Illegal aliens. Paying for the damage is a better solution for them than the possibility of being deported. â⬠¢An alien is defined as a foreigner. The United States has many undocumented immigrants. Illegal aliens are often discussed in the media, but rarely if ever are the feelings and thoughts explained. Many of them find their own selfââ¬â¢s in the same predicament that Mr. Perez faces in this essay. This is a problem in the United States and should be taken seriously. At the same time we have many Mexicans and other cultures that were born in the United States making them citizens but, without the papers to prove who they are it could cause them the same worry as Mr. Perez. Perez, Ramon ââ¬Å"The Fender-Bender. â⬠The Sundance Reader 5th Edition 2009, 2006 Wadsworth Cengage Pages 79-81.
Friday, April 10, 2020
Midsummer Essays - Hermia, Demetrius, Helena,
Midsummer Nights Dream The difference between a play and other forms of literature is that a play is meant to be seen and heard, not merely read. As such, the playwright's text is the center of a larger effort on the part of director, actors and designers as they attempt to aid the audience's understanding of the play's plot, their sympathies with its characters and, ultimately, with the themes that it addresses. Each scene of a play helps an audience to build its appreciation of the play as a whole. The director, actors, designers and other various stage hands are all part of a team that helps to convey the writer's ultimate message. The greatest example of any of these principles would most likely be found in a Shakespearean play. I believe Act 3, Scene II in "A Midsummer Night's Dream" would be the best illustration of this theory. Now the characters in this scene are Oberon, Robin Goodfellow, Lysander, Demetrius, Hermia and Helena. Oberon is the king of the fairies. His mission in this scene is twofold; get Titania, his wife, to fall in love with a beast and have Demetrius fall in love with Helena. In the end he achieves both goals. Robin is basically a bumbling sidekick to the king. Oberon gave him the potion to put on Demetrius' eyes, but he instead puts it on Lysander's. Lysander is in love with Hermia as she is with him. Helena is in love with Demetrius who was at one time in love with her, but now would like to marry Hermia. This scene takes place deep in the forest. I think this is very important, because the forest is a dark place full of mystery, and mystery is a nice prelude to romance. It must not be a very big forest, because when Hermia asked Lysander to meet her there, she never established any specific spot. This adds to the idea that this is a very localized problem. Everyone knows who everyone else is, and everyone is in love with the wrong person. Now Lysander and Hermia were supposed to meet in the forest to plan their elopement, but Helena told Demetrius of their plans in order to gain his favor. Demetrius ran after Hermia and Helena ran after him. Of course no one knows that anyone's been anointed with any love potion which creates most of the confusion. Once Robin gets it right and gets Demetrius to fall in love with Helena, she mistakes it for some cruel joke. Hermia however, takes the situation all too seriously. She really starts to believe Lysander is in love with Helena, especially when he's ready to duel with Demetrius for her hand. Luckily, however, Robin impersonates the both of them, and he leads them away from each other to someplace they can each fall asleep. We see many different themes throughout this scene. The theme"love is blind" is certainly conveyed powerfully. How else could we explain Titania being in love with Bottom, who at this point has the head of an ass? This also explains how Lysander can suddenly be in love with someone whom he's never shown the slightest bit of interest in until now. Of course there's also the reversal of roles in this scene. In a previous scene, Helena was being treated as one would treat a dog. Demetrius was literally shaking her off of his leg, while she simply asked for more when she said, "I am your spaniel, Demetrius, The more you beat me I will fawn on you". In this scene however, Demetrius has a change of heart and we hear him proclaim, "O Helen, goddess, nymph, perfect, divine! To what, my love shall I compare thine eyne?" Hermia, who up till now was wanted by both Lysander and Demetrius, gets nothing but loathing from the two. Where before they would shower her with nothing but praises, now they shout insults at her, and even threaten her with bodily harm. You would think all this messing around with people's emotions would complicate the plot to immeasurable ends, but in the end it actually begins to resolve it. Because of Robin's little mishap, we have a great deal of confusion during a good share of this scene. Demetrius and Lysander are ready to kill each other in order to be with Helena. This is apparent when they exchange "fighting" words: LYSANDER: Now She holds me not. Now follow, if thou dar'st, to try whose right, Of thine or mine, is
Monday, March 9, 2020
The Running Style in English Prose
The Running Style in English Prose The free-running style, said Aristotle in his book On Rhetoric, is the kind that has no natural stopping-places, and comes to a stop only because there is no more to say of that subject (Book Three, Chapter Nine). Its a sentence style often used by excited children: And then Uncle Richard took us to the Dairy Queen and we had ice cream and I had strawberry and the bottom of my cone fell off and there was ice cream all over the floor and Mandy laughed and then she threw up and Uncle Richard took us home and didnt say anything. And the running style was favored by the 19th-century American poet Walt Whitman: The early lilacs became part of this child,And grass, and white and red morning-glories, and white and red clover, and the song of the phoebe-bird,And the Third-month lambs, and the sowââ¬â¢s pink-faint litter, and the mareââ¬â¢s foal, and the cowââ¬â¢s calf,And the noisy brood of the barn-yard, or by the mire of the pond-side,And the fish suspending themselves so curiously below thereand the beautiful curious liquid,And the water-plants with their graceful flat headsall became part of him.(There Was a Child Went Forth, Leaves of Grass) The running style often appears in the Bible: And the rain descended, and the floods came, and the winds blew, and beat upon that house; and it fell: and great was the fall of it.(Matthew, 7:27) And Ernest Hemingway built his career on it: In the fall the war was always there, but we did not go to it any more. It was cold in the fall in Milan and the dark came very early. Then the electric lights came on, and it was pleasant along the streets looking in the windows. There was much game hanging outside the shops, and the snow powdered in the fur of the foxes and the wind blew their tails. The deer hung stiff and heavy and empty, and small birds blew in the wind and the wind turned their feathers. It was a cold fall and the wind came down from the mountains.(In Another Country) In contrast to the periodic sentence style, with its carefully layered subordinate clauses, the running style offers a relentless succession of simple and compound structures. As Richard Lanham observes in Analyzing Prose (Continuum, 2003), the running style gives the appearance of a mind at work, making things up as it goes along, with sentences mimicking the rambling, associative syntax of conversation. In The New Oxford Guide to Writing (1988), Thomas Kane itemizes the virtues of the running style- which he calls the freight-train style: It is useful when you wish to link a series of events, ideas, impressions, feelings, or perceptions as immediately as possible, without judging their relative value or imposing a logical structure upon them. . . .The sentence style directs our senses much as a camera directs them in a film, guiding us from one perception to another, yet creating a continuous experience. The freight-train style, then, can analyze experience much like a series of segregating sentences. But it brings the parts more closely together, and when it uses multiple coordination, it achieves a high degree of fluidity. In the essay Paradox and Dream, John Steinbeck adopts the running (or freight-train) style to identify some of the conflicting elements in the American character: We fight our way in, and try to buy our way out. We are alert, curious, hopeful, and we take more drugs designed to make us unaware than any other people. We are self-reliant and at the same time completely dependent. We are aggressive, and defenseless. Americans overindulge their children; the children in turn are overly dependent on their parents. We are complacent in our possessions, in our houses, in our education; but it is hard to find a man or woman who does not want something better for the next generation. Americans are remarkably kind and hospitable and open with both guests and strangers; and yet they will make a wide circle around the man dying on the pavement. Fortunes are spent getting cats out of trees and dogs out of sewer pipes; but a girl screaming for help in the street draws only slammed doors, closed windows, and silence. Clearly such a style can be effective in short bursts. But like any sentence style that calls attention to itself, the running style can easily wear out its welcome. Thomas Kane reports on the downside of the running style: The freight-train sentence implies that the thoughts it links together with grammatical equality are equally significant. But usually ideas are not of the same order of importance; some are major; others secondary. Moreover, this type of construction cannot show very precise logical relationships of cause and effect, condition, concession, and so on. To convey more complex relationships between ideas in our sentences, we generally shift from coordination to subordinationor, to use rhetorical terms, from parataxis to hypotaxis.
Saturday, February 22, 2020
International Business Environment Coursework Essay
International Business Environment Coursework - Essay Example While international business has been there for a long time, it has never been as intense as it is today. Yet, it has not reached its peak. In the future, conditions are going to make it easier, an also necessary for businesses to look at global opportunities. International business is therefore going to be more intensified as time goes on. Although more and more opportunities continue to increase, there are also some challenges that continue to show up in the international business environment. In this appear both challenges and the opportunities that will grace the international business environment have been identified. Of course, globalization is the biggest factor that has to be considered with regard to international business. Globalization is the unification of the global community made of nations, countries and regions, as they share various aspects of culture such as goods and services, language, ideas, education and even world views. Globalization has been made possible by the introduction of better communication and transport infrastructure which makes these things to be easily moved from one region to the other. Other factors also make globalization a necessity in the long run. With globalization, the world continues to be flatter with every technology that that comes up. The flatness of the world refers to the fact that things can be done around the globe in much more efficient and flexible way than they were done in the past. As the world gets flatter, it will mean that the market will respond equally to all types, sizes and even sources of competition. In a fact, world, all competitors have the same opportunity and some traditional factors that used to be the factors determining who dominates the market will cease to be important. Although this has been achieved in a number of ways, it is going to be even more so in the next decade. The
Thursday, February 6, 2020
Causes Of Bent Grass And Effect Of Soil Compaction On Turf Recovery Coursework
Causes Of Bent Grass And Effect Of Soil Compaction On Turf Recovery - Coursework Example Analyses were conducted to determine the greatest height attainment by grass transections, and the correlation towards soil conditions; particularly soil compaction. While there is abundant research evidence that soil compaction due to foot traffic impedes grass growth in many ways, in this case there was insufficient correlation between height and compaction to conclude a detriment to turf grasses.Even the most cursory of observations within a well-traveled outdoor area reveals the apparent lack of ground cover plants in areas of high foot traffic. Regardless of whether the traffic is human or animal origin. An obvious trail of bare dirt illustrates the way grass and other forms of plants that serve as ground cover are restricted in their growth through trampling. While it is apparent that heavy traffic can kill or impede grasses, a thorough understanding of botany requires the elucidation of the extent to which this is true; how much data can be gathered regarding how much grass is restricted by what amount due to a particular level of human or animal foot traffic? A significant body of research already exists relating to this topic in addition to the data presented herein. Studies of this sort have a great value in terms of the conservation of natural resources. This is especially true pertaining to the unification and maintenance of Parkland in suburban settings. Where groundcover is in danger, adequate resource planning in addition to architectural and design strategy are helpful in terms of the preservation not only a wilderness areas, but of groundcover existing at schools, universities, and other public places. Over time, the consequences of traffic can cause problems in agriculture as well. Vehicles used to till the soil may at the same time diminish that soil's ability to defuse nutrients unless special care is taken. (Reintam et al. 2005) Sports fields and golf courses must also seriously consider and the impact of human foot traffic upon it. On thes e sorts of fields or fairways severe damage in the form of turf removal can occur, the sort of removal can also be known as a divot. The implications of wear and tear on the turf grass essential for the appearance they wish to cultivate. Harivandi describes the genetic tolerance of turf grasses to withstand foot traffic as wear tolerance. (Harivandi, 2002) vehicular traffic may also be a concern if it is consistent, and localized to a specific, narrow region of groundcover. Wear tolerance reflects the ability of a particular turfgrass to survive pressure that can compress or crush the stems, or leaves of grasses and other types of plants. In essence, the result is two primary challenges posed by foot and vehicular traffic: damage to the plants themselves, as quantified by wear tolerance of the grasses ââ¬â and soil compaction, which affects the soil itself and its ability to support life and to provide the fertile ground for new growth; under dry conditions. (Brosnan et al. 2005 ) High traffic areas, if left unattended can be sorely defaced through the additional process of soil displacement. This is a topic of concern upon wet soils especially. Under these conditions increased damage to various forms of turfgrass and higher levels of the root system can be severe. (Harivandi, 2002) Kentucky bluegrass tends to be the most common form of turfgrass used for athletic fields. (Puhalla et al. 1999) Over time, the damage from considerable foot traffic has the potential to become a cumulative. As the soil grows increasingly compact, the viability and fertility of the area in terms of plant
Tuesday, January 28, 2020
Political science as a social science Essay Example for Free
Political science as a social science Essay Political Science is in part a social science, and in part a humanity. Both are important. In this topic, we will look at the basics of social science inquiry, and then proceed to show how this differs from, on the one hand, inquiry in the natural sciences and, on the other, inquiry in the humanities. Social Science Social science inquiry seeks to develop empirical theory. ?Empirical? refers to things that can be experienced through the five senses of seeing, hearing, touching, tasting, or (in the case of political corruption) smelling. Theory? basically means explanation. An empirical theory of politics, then, is an attempt to explain why people behave the way they do politically. If a social scientist (or anyone else) observes people engaging in political behavior, he or she will need to focus on certain characteristics of the people being observed. The observer may wonder why some people differ from others in their political characteristics. Why, for example, are some people Liberals while others are Conservatives and still others are New Democrats. Characteristics that differ from one person to another are called one variables. Those that do not are called constants. Constants are generally less interesting than variables. There is not much point in trying to explain voting behavior in a country in which only one party appears on the ballot. Of course, we might then ask why some countries have only one party whereas others have multi-party systems, but now we are treating ? number of parties? as a variables. Everyday language is full of what are, in effect, hypotheses about political behavior. For example, talk about a ? gender gap? in voting hypothesizes that vote (the dependent variable) is in part a function of gender (the independent variable), with women more likely to vote for the Liberals or New Democrats and men more likely to vote Conservative. Social science research differs from everyday discussion of politics in two ways. The first is where hypotheses come from. Anyone who follows politics will likely carry around in his or her head a lot of ideas about what explains political behavior. Such ideas may come from personal experience, from conversations with others, or from following politics through the mass media. This is true as well for the ways social scientists think about politics. In addition, however, social scientists develop hypotheses more systematically by studying the scholarly literature for the results of previous research. This is important for at least a couple of reasons. For one thing, it is usually the case that the more you learn what is already known about a subject, the more new questions you are likely to have. A review of the literature helps generate new hypotheses. Even more important, social science seeks not merely to describe raw facts, but to explain why people behave the way that they do. To accomplish this, we need to put our ideas into a broader theoretical context that offers such an explanation. It is a fact that in the United States, from 1936 through 2000, the incumbent party has always won the presidency whenever the Washington Redskins won their last home game before the election, and lost whenever the Redskins lost. However, since there is no reasonable explanation for why this should be the case, it is merely an interesting bit of trivia, and no serious observer of politics would rely on it in analyzing the next presidential contest. A second difference is that, for many people, ideas about patterns of political behavior remain merely assumptions. Social science insists that the validity of assumptions must be tested against data. Conceptual definition. We need to know, and be able to communicate to others, what our independent and dependent variables mean. What, in other words, is the idea in our mind when we use a term? Definitions found in dictionaries are examples of conceptual definitions. Sometimes, the idea that is in our mind when we use a term will be obvious, but often it will not. Many concepts used in political science are anything but clear. If we are to study political ideology, for example, we need to spell out with as much precision as possible what that concept means in the context of our research. Operational definition. For hypotheses to be tested, we will need to come up with measurements of our variables. An operational definition is one stated in a way that can be directly measured by data. We strive for a one-to-one correspondence between our conceptual definitions and our measurements (operational definitions) of them. If we succeed, then our measurements have validity and reliability. Data needed to provide operational definitions of our variables come from a wide variety of sources. We may gather the data ourselves. Analysis of data that we gather in order to test hypotheses that we have formulated is called primary analysis. Often, however, this approach would be totally beyond our resources of time, money, and expertise. A nationwide survey of public opinion, for example, would take months to design and carry out, would cost many thousands of dollars, and would require the services of a large survey research organization. Often, secondary analysis of data (that is, analysis of data originally gathered for other purposes) will suit our needs far better. Indeed, very important databases are used almost exclusively in secondary analysis. The Census Canada data is a good example. Other surveys such as the Canadian National Election Study and the General Social Survey were created, in part, for the express purpose of providing quality survey data for secondary analysis by students of Canadian politics. Indeed much of the work using the Canadian National is based on secondary analysis. To facilitate secondary analysis, the University of Toronto Data Library, and other university-based data archives have been established throughout the world. The largest of these is the Inter-university Consortium for Political and Social Research (ICPSR) established in 1962. Today, over 500 colleges and universities from all over the world, including the University of Toronto are member institutions. Students and faculty at these institutions obtain datasets that provide the basis for numerous scholarly books, articles, and conference papers, graduate theses and dissertations, and undergraduate term papers. The Social Sciences and the Natural Sciences What we have described as the social science method ? the effort to explain empirical phenomena by developing and testing hypotheses ? could as easily be called simply ? the scientific method,? without the ?Ã social? qualifier. There are, however, differences between social sciences, including political science, and the natural sciences. Though these are differences in degree, they are important. One difference is that the natural sciences rely much more heavily on experimental design, in which subjects are assigned randomly to groups and in which the researcher is able to manipulate the independent varia ble in order to measure its impact on the dependent variable. Often, when people think about the scientific method, what they have in mind are these sorts of controlled laboratory experiments. In political science, we for the most part are not able to carry out experimental designs. If, for example, we wish to study the impact of party affiliation on decisions by judges, we cannot very well assign judges to different parties, but rather have to take the data as they come to us from observing judges in their natural setting. Experimental design, however, does not define the natural sciences, nor does its absence define the social sciences. Astronomy, for example, must of necessity rely on observation of things that cannot be manipulated. ?Epidemiological?Ã medical research also relies on non-experimental data. Conversely, the social science discipline of social psychology has been built in large part from experiments in small group laboratories. In political science, a great deal of laboratory research on the impact of campaign commercials has been carried out in recent years. Field experiments are also common, as when survey researchers will test the impact of alternativ e question wordings by splitting their sample and administering different questionnaire forms to different subsets of respondents. Nevertheless, it is fair to say that experimental designs are much less common in the social sciences, including political science, than in the natural sciences. Most of our research design is, in effect, an effort to approximate the logic of experimental design as closely as possible. Other differences, also differences in degree, have to do with lower levels of consensus in the social sciences. There is less consensus about conceptual definition. Even if we agree that power is a key concept for the study of politics, we may not agree on what power means. Chemists, on the other hand, not only agree that molecules are important, they also mean pretty much the same thing when they use the term. There is less consensus about operational definition. Chemists also agree on how to measure the atomic weight of a molecule. Social scientists are far from unanimous in the ways they go about measuring power. It bears repeating that these differences are ones of degree. In the natural sciences there are also disputes at the frontiers of the various disciplines about what concepts are important, what they mean, and how they should be measured. In the social sciences, consensus is likely to break down from the start. Even if we can agree that a particular concept is important, on what it means, and on how it should be measured, we will encounter far larger problems of measurement error than those in the natural sciences, where measurement is not without error, but is typically much more precise. Finally, remember that we are involved in trying to explain human behavior. People do not seem to behave as predictably as molecules. Philosophers are not in agreement on this point, but it may be that human behavior is inherently less predictabl The fact that we deal with tendencies rather than with laws means that, for the most part (and despite impressive work by ? rational choice? theorists to develop formal mathematical models of political behavior), political science makes relatively little use of elegant systems of deduction, but considerable use of statistics, which provides us with valuable tools for dealing with probabilities. Despite its unavoidable limitations, political science as a social science has produced an explosion in our knowledge about politics. This has had important practical consequences. For example, no serious aspirant for a major elected office in an economically developed democracy would consider embarking on a campaign without consulting experts in survey research, a signature social science technique. In addition to being, in part, a social science, political science is also in part a humanity. Political science as a humanity means at least a couple of different things.
Monday, January 20, 2020
Griffins Egg: Gunther :: essays research papers
Griffin's Egg: Gunther à à à à à Griffin's Egg is a story about Gunther, a man who lives on the moon. And his adventures,as he gets into all kinds of situatutions. He, along with many others, have inhabited the moon because Earth is engauged in a full thermonuclier war. The dangers of the moon however, also come along. Solar flares, dangerous robots, CMP chips, and many more dangers await Gunther on the moon. à à à à à As gunther is delivering some fuel rods to the G5 Assembly Plant, a Surface Warning is broadcast, this is high levels of radiation caused by a solar flare. He is 30 minutes away from the nearest shelter, and the advisory is for 20 minutes. He finds a way to make a rig to sit under the truck, so he would be shielded from the radiation. He also uses his robot, Siegfried, to control the movement of the truck while he is riding under it, on his way to the plant. à à à à à When he finally made it so the plant, he went inside to find it filled with thick, smoke-like mist. His light only distorts the images, so he turns it off and gets used to the dark room. When his eyes finally got adjusted, it was just in time, because just then a big metal puncher came by and punched a hole in the ground right next to him. He stumbled away, only to find that the robot was following him. He ran into the shelter and closed the door, sealing the robot outside of the shelter. The shelter was s small room, just big enough to fit a cot, a chemical toilet, and a rebreather with spare oxygen tanks. à à à à à A while later, after the flare was over, the CMP chips, which has been implanted in everyone's brain that had come to the moon, was being used against them. Krishna, a scientist, found that if he broadcasted over the chips frequency, he could make hypnotic suggestions to the people with the chips. Gunther had to find a way to stop this, so he and another scientist, Hiro,
Sunday, January 12, 2020
Epic of Labaw Donggon Analysis
The Hinilawod epic tells the story of the exploits of the three demigod brothers, Labaw Donggon, Humadapnon and Dumalapdap of Panay. In its original form the epic would take about three days to perform (including breaks for food and sleep), thus making it one of the longest epics in the world. Anthropologist Dr. F. Landa Jocano recorded a version of the epic from the inhabitants of Central Panay. This is how the story goes: When the goddess of the eastern sky Alunsina (also known as Laun Sina, ââ¬Å"The Unmarried Oneâ⬠) reached maidenhood, the king of the gods, Kaptan, decreed that she should marry.All the unmarried gods of the different domains of the universe tried their luck to win her hand to no avail. She chose to marry a mortal, Datu Paubari, the mighty ruler of Halawod. Her decision angered her other suitors. They plotted to bring harm to the newlyweds. A meeting of the council of gods was called by Maklium-sa-t'wan, god of the plains, where a decision by those present w as made to destroy Halawod by flood.Alunsina and Paubari escaped harm through the assistance of Suklang Malayon, the goddess and guardian of happy homes and sister of Alunsina, who learned of the evil plot and warned the two so they were able to seek refuge on higher ground. After the flood waters subsided, Paubari and Alunsina returned to the plains secretly. They settled near the mouth of the Halawod river. Several months later Alunsina became pregnant and told Paubari to prepare the siklot, things necessary for childbirth.She delivered a set of triplets and summoned the high priest Bungot-Banwa to perform the rites of the gods of Mount Madya-as (the mountain abode of the gods)to ensure the good health of the children. The high priest promptly made an altar and burned some alanghiran fronds and a pinch of kamangyan. When the ceremony was over he opened the windows of the north side of the room and a cold northernly wind came in and suddenly the three infants were transformed into strong, handsome young men.Labaw Donggon, the eldest of the three, asked his mother to prepare his magic cape, hat, belt and kampilan (sword) for he heard of a place called Handug where a beautiful maiden named Angoy Ginbitinan lived. The journey took several days. He walked accross plains and valleys, climbed up mountains until he reached the mouth of the Halawod river. When he finally met the maiden's father and asked for her hand in marriage, the father asked him to fight the monster Manalintad as part of his dowry. He went off to confront the monster and with the help of his magic belt LabawDonggon killed the monster and to prove his feat he brought to Angoy Ginbitinan's father the monster's tail. After the wedding Labaw Donggon proceeded home with his new bride. Along the way they met a group of young men who told him that they were on their way to Tarambang Burok to win the hand of Abyang Durunuun, sister of Sumpoy the lord of the underworld and whose beauty was legendary. Lab aw Donggon and his bride continued on their journey home. The moment they arrived home Labaw Donggon told his mother to take care of his wife because he is taking another quest, this time he was going to Tarambang Burok.Before he can get to the place he has to pass a ridge guarded by a giant named Sikay Padalogdog who has a hundred arms. The giant would not allow Labaw Donggon to go through without a fight. However, Sikay Padalogdog was no match to Labaw Donggon's prowess and skill in fighting so he gave up and allowed him to continue. Labaw Donggon won the hand of Abyang Durunuun and also took her home. Before long he went on another journey, this time it is to Gadlum to ask for the hand of Malitong Yawa Sinagmaling Diwata who is the young bride of Saragnayan the lord of darkness.This trip required him to use his biday nga inagta (black boat) on which he sailed across the seas for many months, went across the region of the clouds, passed the land of stones until finally he reached the shores of Tulogmatian which was the seaside fortress of Saragnayan. The moment he set foot on the ground Saragnayan asked him, ââ¬Å"Who are you and why are you here? â⬠To which he answered, ââ¬Å"I am Labaw Donggon, son of Datu Paubari and goddess Alunsina of Halawod. I came for the beautiful Malitong Yawa Sinagmaling Diwata. â⬠Saragnayan laughed.He told Labaw Donggon that what he wished for was impossible to grant because she was his wife. Labaw Donggon then challenged Saragnayan to a duel saying that whoever wins will have her. The challenge was accepted and they started fighting. Labaw Donggon submerged Saragnayan under water for seven years, but when he let go of him, Saragnayan was still alive. The latter uprooted a coconut tree and started beating Labaw Donggon with it. He survived the beating but was not able to surpass the powers of Saragnayan's pamlang (amulet) and eventually he gave up and was imprisoned by Saragnayan beneath his house.Back home Angoy Gi nbitinan and Abyang Durunuun both delivered sons. Angoy Ginbitinan's child was named Aso Mangga and Abyang Durunuun's son was called Abyang Baranugon. Only a few days after they were born Aso Mangga and Abyang Baranugon embarked to look for their father. They rode their sailboats through the region of eternal darkness, passed the region of the clouds and the land of stones, finally reaching Saragnayan's home. Saragnayan noticed that Abyang Baranugon's umbilical cord have not yet been removed, he laughed and told the child to go home to his mother.Abyang Baranugon was slighted by the remarks and immediately challenged Saragnayan to a duel. They fought and Abyang Baranugon defeated Saragnayan and won his father's freedom. Labaw Donggon's defeat and subsequent imprisonment by the Lord of Darkness also angered his brothers. Humadapnon was so enraged that he swore to the gods of Madya-as that he would wreak revenge on all of Saragnayan's kinsmen and followers. Humadapnon prepared to go t o Saragnayan's domain. He employed the aid of Buyong Matanayon of Mount Matiula who was well-known for his skill in swordsmanship.For their journey they rode on a sailboat called biday nga rumba-rumba. They travelled through the region of the clouds, passed by the region of eternal darkness and ended up at a place called Tarambang Buriraw. In this place was a ridge called Talagas Kuting-tang where a seductive sorceress named Piganun lived. Piganun changed herself to a beautiful maiden and captured the heart of Humadapnon. Buyong Matanayon begged with Humadapnon to leave the place with him but the latter refused.After seven months passed, Buyong Matanayon remembered that they have brought with them some ginger. One evening at dinner time Buyong Matanayon threw seven slices of ginger into the fire. When Pinganun smelled the odor of burning ginger she left thedinner table because sorcerers hated the odor of ginger. Immediately Buyong Matanayon struck Humadapnon, who became unconscious. He dragged his friend with him and they were able to escape. They continued with their trek and everywhere they went they exacted revenge on all of Saragnayan's people and relatives.One day they reached a place called Piniling Tubig who was ruled by Datu Umbaw Pinaumbaw. There was a big gathering in the village and when they asked what was going on they were told that the datu was giving his daughter for marriage to whoever could remove the huge boulder that rolled from a mountain into the center of the village. Many men tried their luck but no one so far was able to even move the stone. Humadapnon took off his magic cape and used it to lift the stone and threw it back into the mountain. The datu kept his word and Humadapnon married his daughter.During the wedding feast Humadapnon heared about the beauty of the goddess of greed Burigadang Pada Sinaklang Bulawan from a guest minstrel who sang at the celebration. After the wedding Humadapnon went to seek the hand of the goddess in ma rriage. Along the way he encountered Buyong Makabagting, son of the mighty Datu Balahidyong of Paling Bukid who was also travelling with the same purpose in mind. Upon learning of Humadapnon's intent, Buyong Makabagting challenged him to a duel. They fought and Buyong Makabagting was no match to Humadapnon's strength and skill.The fight ended when Buyong Makabagting surrendered and even promised to aid Humadapnon in his quest. Humadapnon married the goddess and brought her home. Meanwhile, right after Humadapnon left to seek Saragnayan's followers and relatives his brother Dumalapdap left for Burutlakan-ka-adlaw where the maiden Lubay-Lubyok Hanginun si Mahuyokhuyokon lived. For the trip he brought along Dumasig, the most powerful wrestler in Madya-as. Several months later they came to a place called Tarambuan-ka-banwa where they encountered the two-headed monster Balanakon who guarded a narrow ridge leading to the place where the maiden lived.With the aid of Dumasig, Dumalapdap kil led Balanakon. However, upon approaching the gate of the palace where the maiden lived he was confronted by Uyutang, a batlike monster with sharp poisonous claws. There ensued a bloody battle between the Humadapnon and the monster. They fought for seven months and their skill and prowess seemed to be equal. But on the seventh month, Humadapnon was able to grab on to Uyutang's ankle and broke it. Then he took his iwang daniwan (magic dagger) and stabbed Uyutang under the armpit.Uyutang cried out so loud that the ridge where they were fighting broke into two and there was an earthquake. Half of the ridge became the island of Buglas (Negros) and the other became the island of Panay. Dumalapdap married Lubay-Lubyok Hanginun si Mahuyokhuyokan and then took her home. Datu Paubari was very happy when he was reunited with his three sons and he prepared a feast in their honor. After the celebration, the three brothers left for different parts of the world. Labaw Donggon went to the north, Hu madapnon went south, Dumalapdap to the west and Datu Paubari remained in the east.
Saturday, January 4, 2020
Infectious Diseases Have A Great Impact On Morbidity And...
Infectious diseases have a great impact on morbidity and mortality of people living in long-term care facilities (LTCFs). It is reported that 1 to 3 million serious infections and several thousand outbreaks occur every year in LTCFs.1 Utsumi and colleagues showed in their review paper that influenza was the most reported outbreaks in LTCFs.2 The important source of influenza is infected person. An infected but asymptomatic person can shed the virus and be infectious as well.3 Influenza vaccination is the most effective way to prevent outbreaks. Older people, however, are less likely to be protected by vaccination because the antibody response in older people is considerably lower than in younger people.4 Older people living in LTCFs haveâ⬠¦show more contentâ⬠¦Contact tracing, for example, enables us to identify transmission of the disease from infected persons to uninfected persons, and thus to treat their contacts for reducing the spread of infection.6 The study of network s tructure is a first step to infer the disease spread as well as to build better predictive model for future outbreaks. In social network analysis, people within a network are referred to as nodes, and the relationships between people are referred to as edges.7 Each pair of nodes (i, j) is either connected or disconnected, that is, the contact direction is not taken into account in the analysis of the influenza transmission. In the simplest data generation, the connections are defined as à ´_ij={ââ"Ë(0 if i ââ âºj@1 if i ââ âj)â⠤ For undirected edges (i.e., ignoring directionality), the contact matrix is symmetric, and its elements are à ´_ij. Node color, shape and size, and edge weight in the social network diagram are conducive to presenting individual properties and connection frequencies. For example, in Figure 1 (the R code appears in APPENDIX), node colors in Figure 1(b) representing infectious status (light pink: infected and light blue: uninfected), and edge weights in Figure 1(c)
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