Friday, December 27, 2019

Essay on Illegal Immigration and Its Effects on the United...

Many presidents have promised to increase government regulation on the ongoing cycle of illegal immigration. However, none of them have succeeded in doing so. It does seem to be an impossible task with thousands crossing every day and many of them fooling the U.S. by getting a working visa then never returning back home. Although this task of illegal immigration seems overwhelming the government needs to be more involved by continuing to build border walls, allowing the states to pass laws to check for citizenship if prompted to, and, if all these actions are carried out lawfully, the U.S. will become a safer place to live. The reason that thousands of illegal immigrants cross the border each day is to make a better life for themselves†¦show more content†¦Although she states this does not mean that others living in her neighborhood did not experience criminal activity. In 2010, 26 members of a gang know as MS-13 were charged with several counts of criminal activity. Members of that gang can be found in many states across the U.S. (â€Å"Undocumented Latino Immigrants Increase†¦Ã¢â‚¬ ). Whatever happened to the 854 miles of border fencing that American citizens were promised on the U.S. southern border? If the government really wanted to stop illegal immigration, they should pursue it a bit more aggressively. This is not something that can be fixed overnight, but the government needs to at least show some means of urgency toward this serious matter since â€Å"only 12 miles of the 854 miles of border fencing called for in the Secure Fence Act have been constructed† (â€Å"Border Fencing Is Crucial†¦Ã¢â‚¬ ). It seems that the government obviously must not care too much about American security. Keeping the border wide open creates a major passageway for illegal immigrants, drug smuggling, and terrorism. It was found that â€Å"in 2005, 155,000 foreign nationals from countries other than Mexico were apprehended attempting to cross our land border with Mexico†¦these individuals originated from country’s of national security concern† (â⠂¬Å"Border Fencing Is Crucial†¦Ã¢â‚¬ ). It is obvious that other countries know thatShow MoreRelatedIllegal Immigration And Its Effects On The United States1327 Words   |  6 PagesChris Boyd Professor Green September 17th, 2015 English 1A Illegal Immigration and its Effects on the United States One of the biggest issues facing the United States is the issue of illegal immigration. Recently, this topic has been heavily discussed in the presidential debates thanks to candidate Donald Trump, but exactly what is illegal immigration and how is it effecting us as citizens of the US? There are many aspects to this issue ranging from an economic standpoint to a moral standpoint soRead MoreEssay on The Problems of Illegal Immigration927 Words   |  4 Pages Illegal immigration to the United States refers to the act of foreign nationals violating U.S. immigration policies and national laws by entering or remaining in the United States without proper permission from the United States government (Illegal Immigration). Illegal immigration has been going on since the 1880s and till this day the number of aliens has been increasing each year. The Page Act of 1875 was known as the first federal immigration law that prohibited the entry of immigrants.Read MoreIllegal Immigration And The United States1481 Words   |  6 PagesPurpose Statement Illegal immigration can cause substantial tension on the current economic configuration in a country. However, it can also, assist the said configurations by providing cheap and effective manpower at the same time. Contemporary study on political opinions concerning immigration frequently pits points of view highlighting economic self-interest versus cultural or ideological rationalization. They (studies) are also based on the particular immigration policy at hand at the time,Read MoreThe Effects Of Mexican Immigration On The United States1252 Words   |  6 PagesRUNNING HEAD: IMMIGRATION POLICY Immigration Policy in the United States: The Effects of Immigration on the Legal, Native Workforce Christopher R. Surfus, MBA, MPA Western Michigan University School of Public Affairs and Administration PADM-6840 Management of Public Financial Resources Professor Robert Peters, Ph.D. December 3, 2015 Immigration Policy in the United States: The Effects of Mexican Immigration on the Legal Workforce ABSTRACT INTRODUCTION ImmigrationRead MoreIllegal Immigration Is The Entry Of Non Us909 Words   |  4 Pages â€Å"Illegal immigration is the entry of non-U.S. citizens into the United States without their having applied for entry at one of the many border crossings† (Illegal Immigration 9). There are numerous ways that illegal immigrants travel into the United States. The most common forms of entry are through Canada and Mexico. However, illegal immigration did not used to exist. In fact, immigration without applying to enter into the country was allowed in the United States at the beginning of 1655. OverRead MoreThe Rights Of Illegal Immigration1690 Words   |  7 PagesJuan Guarintino was a Spanish immigrant who moved here into the United States. Juan worked for General Faucets and Plumbing and loved every minute of his job. There was only one problem that Juan was struggling with in America. Juan Guarintino was an illegal immigrant who had paid someone to smuggle him into the United States and make him a fake visa card. Now, a few days ago, he shot a man for the twenty dollars in his pocket that way he could manage his chronic cocaine problem, but the police haveRead MoreIllegal Immigrants : Illegal Immigration1627 Words   |  7 PagesIllegal Immigration in the US What does illegal immigration mean to a hard working, middle class worker providing for a family of four? What does illegal immigration mean to someone who is getting jobs taken right underneath them from illegal immigrants that are willing to work the same job for a lower paycheck? What does illegal immigration mean to someone who is in need for a job? Illegal immigration is an epidemic occurring in the United States of America, the land of the free (to the legal citizens)Read MoreAn Illegal Mexican Immigrant Immigrants1505 Words   |  7 Pageselusive of prizes, a free ride to the north. According to Jose Flores, an illegal Mexican immigrant seeking work in the United States says, â€Å"To be truthful, I have no idea of precisely where this train goes, other than it takes us to el norte† (Griffin 363+). The fact that each night literally hundreds of men and women clamber over the barricade is testament to its ineffectiveness and to the irresistible pull of United States job s â€Å"that on average pay eight times their equivalent in Mexico† (GriffinRead MoreSupport Our Law Enforcement and Safe Neighborhood Act1560 Words   |  6 PagesThe passing of one of the United States’ most restrictive anti-immigration law’s in history was heavily disputed and extremely controversial nation-wide. The conversation surrounding current United States immigration regulations and issues that are aimed to be ‘addressed’ by Arizona’s infamous SB 1070 are currently at a standstill. By changing ways in which opposing parties view the ‘issues’ of illegal immigration in the United States and the effects caused by SB 1070, there is hope for the advancementRead MoreThe Immigration Act Is A Defining Moment That Changed Us Immigration Policy877 Words   |  4 PagesThe 1965 Amendment to the Immigration Act was a defining moment that radically changed US immigration policy and provided the basis for all that we have witnesse d today with its far reaching consequences. Before 1965, the national origins quotas, which heavily favored British, German, and Irish immigrants, was replaced with a less discriminatory system (Hatton, 2015). Many decades following the enactment of this law saw a dramatic rise in the total number of immigrants, and an equally dramatic switch

Thursday, December 19, 2019

Responsibilities of a Marketing Manager - 686 Words

Marketing is one of the central functions of a firm; the others typically being Research and Development (RD), Manufacturing or Operations, Finance, IT and Human Resources (HR). Whereas the other functions concentrate on internal matters, marketings focus is solely on the customer. Marketing is the most critical of all activities for without a customer there is no revenue, leaving little for the other functions to do. As such, the fate of the organization rests in the abilities of its marketing managers. It is difficult to generalize about the precise duties and responsibilities of marketing managers. The reason being if one were to do all of the activities that fall under the rubric of marketing, theyd be a communicator, seller,†¦show more content†¦Marketing managers need to learn how to negotiate with intermediaries deals that are beneficial to both parties. Finally, marketing managers are managers. They have face-to-face contact with other members of the organization; they oversee projects and rely on their personal values to help them through ethically difficult situations. Even when the job is simplified, a marketing manager needs to wear many hats. THE FUNDAMENTAL PRINCIPLES OF MARKETING In every subject, there are fundamental axioms that underlie its theoretical foundation. In economics, for example, it is assumed that all actors are rational beings, have access to the same set of information and seek to maximize their utility. Being a subset of economics, its no surprise that many of the fundamental assumptions of economics also apply to marketing, however we dont assume that information is uniformly distributed. We do assume that actors in this world are rational, but they might not make the same decision given the same set of circumstances, because - and this is our third assumption - there is an abundance of choice. The fundamental principle underlying marketing theory is that throughout the course of a day, humans instinctually seek to satisfy their intrinsic needs. These needs can be classified into three groups: physical, social or individual. Physical needs include food, shelter and security. Social needs include a desire for companionship orShow MoreRelatedBusiness Marketing Management : Business Management1077 Words   |  5 PagesAmanda Gross Ms. Jessica Madinger Comp 101 C 9 November 2015 Business Marketing Management Outline Business has several majors to seek, such as: Accounting, Economics, Administration, Marketing, International business, Entrepreneurship, and lastly Management. A business degree has many of opportunities. This paper is going to specifically focus on Management which you can get a minor in marketing, which would be called marketing management. Management has several classes to can take, and severalRead MoreA Critical Evaluation Of How Management Affects The University Of Manchester s Vision Of Social Responsibility1586 Words   |  7 PagesA critical evaluation of how management can contribute to the University of Manchester’s vision of social responsibility Innovation. Leadership. Coordinating. Planning. These are only four out of an infinite number of words that can describe not only management, but also a manager. Over the years, management has developed greatly, evolving from an unrecognized discipline or practice (Cunliffe 2014) to one of the pillars of society. Daft et al (2010, p. 3, p. 5-6) argue that â€Å"the nature of managementRead MoreCreative Thinking Skills For Professional Marketing Managers1625 Words   |  7 PagesCreative thinking skills for the professional marketing managers In the competitive situation what organizations should do for standing out from the crown. Creativity is an effective tool to enhance performances across the organization for this reason companies should install creativity in to the employee’s skill (Sokolova, 2015). As managers, the creative thinking skill is very useful for managerial tasks and leading effectively team. According to the performance center defined the creative thinkingRead MoreCase Analysis : Governed And Managed By Citysmart Pty Ltd Board Of Directors1257 Words   |  6 Pagesresponsible for the strategic issues associated with the project, that are essential to ensuring the delivery of the project outputs and the attainment of project outcomes. The committee directs attention at the strategic level. The Project Steering responsibilities are: †¢ providing strategic oversight of the project through its life cycle, from initiation to closure; †¢ providing oversight, scrutiny and challenging the project team which may result in: o increased understanding and transparency of risksRead MoreManchester United Score Club1219 Words   |  5 PagesMODULE MALPHA Table of contents: To provide the following diagrams for the Manchester United Soccer Club summer tournament: 1) Product Breakdown Structure and Work Breakdown Structure 2) Organisational Breakdown Structure 3) Linear Responsibility Chart 4) Network Diagram 5) Activity Table 6) Schedule 7) Glossary 8) Bibliography 1. 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In this case new graduate student got the job as an assistant manager of a marketing department in a company located in New York City. This company is a fast-growing company that provides marketing support for other companies. In the marketing department, they are full with marketing strategies to help other companies to achieve their marketing goal through successRead Morelegally astute manager leg100 assgn 11660 Words   |  7 Pagesï » ¿ In my opinion any marketing manager who is not utilizing social media as a marketing tool is failing to utilize an extremely cost effective means of reaching their target market. There are a wide array of sites that an shrewd manager can utilize to market their products, sites such as Facebook, Yahoo, Google, Bing, My space, YouTube and many others. I believe that the site that the marketing manager chooses would depend on the type of customer that they are attempting to target. ActuallyRead MoreExley Chemical Case Analysis1655 Words   |   7 Pagesdepartments • This type of structure is inappropriate for this company • There is no uniformity of command B. Micro • The coordination between marketing and the new product development department was insufficient. • The Product development had problems with marketing. • The Product manager quarrels with the marketing department • Product manager was unsuccessful in coordinating the activities. • The company was having difficulties in producing a team concept within the departments. IIRead MoreThe Role Of Chief Role Of Chief Financial Officer952 Words   |  4 Pagescompany’s headquarters, aside from store managers and administrative staff. With the continued growth, it is important to develop a corporate structure. The three forerunners of GC3 are Tony, Bruce and Bonnie. Tony has taken the role of Chief Financial Officer. To be successful, Tony will need to build a team to meet the demands of the entire organization. Since Tony works at headquarters, a proposed IT and Accounting group will report to him. These added responsibilities will create a need for Tony to have

Wednesday, December 11, 2019

Outsourcing Business Functions in Australia-Samples for Students

Question: Discuss about the Advantage and Disadvantage of Outsourcing Business Functions. Answer: Introduction Outsourcing business functions denotes subcontracting some non-primary business functions and activities to third part contractor or provider. Organizations mostly outsource some parts of their business like payroll, accounting, human resource, information technology, customer service and many more (Gerbl et al., 2015). While business process outsourcing (BPO) is related to any contractor outside of the country, it is known as offshore outsourcing. On the other hand, business process outsourcing, which is contracted with domestic party, is called nearshore outsourcing. Outsourcing business functions help organizations in freeing up some of their time and they can better focus on their core organizational functions within that time (Lacity Willcocks, 2014). However, outsourcing business function can cause security risk for an organization, as important organizational information needs to be shared with third party contractors. This literature review will primarily focus on the advantages and disadvantages of outsourcing business function99s. Moreover, the literature review will also focus on the trends of BPO in Australia. Apart from that, different models of outsourcing business functions will also be described in this literature review. Furthermore, some effective ways of outsourcing business functions will also be discussed in this literature review. Project Objective To explore the trends of outsourcing business functions in Australia To recognize the advantage of outsourcing business functions To assess the disadvantage of outsourcing business functions Project Scope The scope of the project is to identify the impact of outsourcing business functions on business performance. The scope of the literature review also extends its limit towards analyzing the trends of outsourcing business functions. The trends of outsourcing business functions will encourage the organizations towards more business process outsourcing for increased business flexibility. Apart from that, the literature review will also provide huge information regarding the advantage of outsourcing business functions. Furthermore, the information provided regarding the disadvantage of outsourcing business functions with help organization in taking preventive actions. Moreover, the information provided about the effective ways of business process outsourcing will encourage the organization towards operating perfect business process outsourcing. Literature Review Concept and impact of Outsourcing Business Functions Outsourcing business functions or business process outsourcing is defined as the subset of outsourcing, which involves contracting of specific organizational operations or activities to a third party provider. Moreover, this third party organization performs the outsourced jobs on behalf of the main organization. Therefore, it can save time for the main organization towards concentrating on their core organizational activities and enhance business effectiveness. Business process outsourcing can be categorized two categories namely back office outsourcing and front office outsourcing. According to Chou et al., (2015), back office outsourcing offers the organizational services like data management, data entry, payment processing, accounting service, survey and quality assurance. On the other hand, Liu and Deng, (2015) opined that front office outsourcing always deals with customer interactions. Moreover, front office outsourcing deals with the business functions like telemarketing, technical support, market research, inbound/outbound sales, customer support and others. Organizations can enhance the speed and efficiencies of their business process through sharing some of their organizational functions with third party provider. On the other hand, Rekik et al., (2015) opined that outsourcing is the practice used by several companies towards reducing their organizational cost through transferring some of their work to third party provider. Trends in Outsourcing Business Functions in Australia Organizations in Australia are joining the global rush of outsourcing. With the proliferation of the professionals doing freelancing and third party service providers, business process outsourcing is becoming more accessible to even small companies of Australia. Over the past few decades, outsourcing business functions has become an increasingly growing business trends. According to Lacity and Willcocks, (2013), the global market for BPO has been projected to reach US$262.2 billion by the year 2022. The availability of new generation technologies like process automation, cloud services, big data analytics has helped in effective operations of business process outsourcing. On the other hand, Tjader et al., (2014) opined that Australia has been considered as the largest market for business process outsourcing in the year 2016. The BPO of Australian organizations have been projected for $4.6-Billion. While considering the evidence from Telstra, it has been found that the organization ha s outsourced more than 500 jobs to Philippines. On the other hand, Luo et al., (2013) opined that NAB of Australia has decided to send more IT jobs in India. Figure 1: Business Process Outsourcing Trend (Source: Eshuis et al., 2015) From the above figure, it is evident that business process outsourcing is rapidly increasing in Australia as compared to other countries. Most of the manufacturing, accounting and telecommunication companies have started to outsource their non-core business functions to other third party companies for saving the organizational cost. Furthermore, the Australian organizations mostly outsource their business functions to Philippines, India and China. Advantage of Outsourcing Business Functions Cost Advantage Cost advantage is the most visible and obvious benefits associated with outsourcing of business functions to other third party provider. In outsourcing, organizations outsource a complete business function to the third party. Therefore, the organizations do not need to pay the employees for this particular business function in their own organization. It actually saves organization organizational cost. On the other hand, Gunasekaran et al., (2015) opined that organizations can outsource their business functions to such countries, where wage is quite lower than their own. In this way, low wage of the employees can actually save organizational cost. While considering the example of Telstra, it has been found that the organization has saved also 60% of their organizational cost through outsourcing their business functions to India and Philippines (Teo Bhattacherjee, 2014). Access to Skilled Resources Organizations mostly outsource their business functions to those vendors, who are actually specialized in their fields. According to Liu et al., (2015), the outsourcing vendors are mostly equipped with technical experts and specific equipments. Therefore, organizations can get best talented and specifically skilled employees for performing the specific business functions through outsourcing business functions. On the other hand, Schoenherr et al., (2015) opined that organizations no longer need to invest in recruitment and training service for the function, which they outsource to third party vendor. Moreover, the organizations can get wide pool of talented and skilled employees in outsourcing organization, which can reduce their recruitment cost. Increased Efficiency and Risk Sharing According to Maley et al., (2015), the third party vendors have wide pool of especially skilled employees for performing any specific task. Therefore, they can better control and perform the specific business functions outsourced to them by the main organization. In this way, the outsourcing business functions actually enhance organizational efficiency. On the other hand, Gorla and Somers, (2014) opined that the specialist vendors of the outsourcing companies can also reduce and share the organizational risks of the main organization. Save on Technology and Infrastructure Business process outsourcing saves the cost of the technology and infrastructure of organizations. According to Oshri et al., (2015), organizations need not purchase and adopt separate technological equipments for performing the specific function, which they outsource to other third party vendors. Outsourcing organizations are effectively equipped with specific technology, which eliminated the needs of main organizations to invest in technology and other infrastructure. Concentrate on Core Business Areas According to Han and Mithas, (2013), business process outsourcing actually frees up time and energies of the organizations and enables them to be more concentrated on their core business areas. In this way, they can invest more time and money to their research and development department for launching innovative product and service development. While considering the example of Westpac, the organization has outsourced its human resource functions to Genpact. Moreover, Genpact is committed to supply human resources to Westpac in their areas of learning and development. Time Zone Advantage Apart from getting cost advantage, the organizations can also get time zone advantage from outsourcing their business functions. According to Runar Edvardsson and Durst, (2014), organizations can get the benefit of time differential between their own country and the country in which they outsource their business functions. Moreover, the organizations can get their project done from the vendor organization even when they are closed for the day. Rekik et al., (2015) stated that the organizations can actually get the delivery of their project on exact time through outsourcing business functions. It can actually add to the value proposition of the organization. Faster and Better Service The expertise knowledge of the employees in the outsourcing organizations offers better business functions with high quality deliverables. As per Luo et al., (2013), the employees of the outsourcing organizations incorporate their special skills and knowledge in the business functions. Therefore, the organizations can always get delivery high quality business deliverables through outsourcing business process. Disadvantage of Outsourcing Business Functions Lack of Managerial Control According to Schoenherr et al., (2015), organizations face lack of managerial control on their outsourced business functions. With the outsourcing of business functions of an entire department, organizations also turn the managerial control to the outsourcing companies. Moreover, the managerial control of the business functions belongs to outsourcing companies. Oshri et al., (2015) pointed out that outsourcing companies are not driven by the same standards and mission of the main organization. Therefore, the products and service delivered by the outsourcing company may not meet the organizational standards of the main company Hidden Cost According to Han and Mithas, (2013), paying to the outsourcing companies seems to be additional cost of the organizations. Moreover, outsourcing companies cover the details of the business functions, which the main organizations sign during the contract. Anything not covered in the contract may cost additional charges to pay by the organizations. Furthermore, Tjader et al., (2014) opined that outsourcing business functions may also associated with legal expenses for the organizations, as they need to retain a lawyer for reviewing the contract to sign. Threats of Security and Confidentiality The life blood of the any organization is its important and secure information. In business process outsourcing, organizations need to share the information regarding payroll, medical records and other confidential information. There is a potentiality of the information to be misused by the outsourcing organization (Eshuis et al., 2015). Therefore, there is obviously the threat of the security and confidentiality associated with business process outsourcing. Quality Issue The outsourcing companies are mostly motivated by profit and the contract is only fixed by price. Therefore, the only way for the outsourcing companies to increase profit is to decrease the expenses. Moreover, the outsourcing organizations frequently charges extra pay for accommodating with any changes in the business requirements (Maley et al., 2015). In any case, the organization refuse to pay extra, the outsourcing organization reduce the quality of the business deliverables. Model of Outsourcing Business Functions There are five most widely used models for outsourcing business functions. According to Lacity and Willcocks, (2014), global delivery model, which is also known as blended outsourcing, combines resources such as onshore and offshore, onsite and offsite. This model helps in reducing labor costs by meeting predetermined values. Liu and Deng, (2015) highlighted that hybrid model or dual-shore model combines both onshore and offshore services where both outsourced team and clients communicate directly. Though such model workload is shared according to 4:1 (onshore: offshore). Furthermore, Eshuis et al., (2015) pointed out that offshore multisource model is the most appropriate for offshore operations. This is because through such hub and spoke model, multi-source suppliers are contacted simultaneously in real time basis. Other outsourcing vendors are also contacted simultaneously, however the business framework becomes more complicated and are more cost-effective, which is why it is more adopted by large scale manufacturing enterprises. Considering the viewpoint of Gunasekaran et al., (2015), Build Operate Transfer or BOT Model is used by clients who offshore operations through foreign subsidiary. The major advantage is that business operation ownership needs to be transferred to client enterprise after the period of operation and within the period entire cost of operation will be beard by offshore company. Finally, while considering the viewpoint of Gorla and Somers, (2014), it can be highlighted that Global Shared Services is the only model that is the combination of captive centers considering both onshore and offshore activities. With the help of specified budget, client company responsibilities are shared and run independently. Effective Ways of Outsourcing Business Functions Consider Relevant Provider Organizations should look at all the proficient outsource service providers in the market. Moreover, the organizations should evaluate all the outsourcing companies based on their business requirements. The outsourcing organizations should be evaluated based on their track record on their performance. In this way, organizations should select the best outsourcing companies, which can provide best quality service and even can adopt with the changing business requirements (Han Mithas, 2013). Understanding Business Objectives and Proper Documentation Organizations should make sure every part service level agreement is properly documented and nothing has left undocumented. Moreover, the paperwork should be comprehensive enough and delineate responsibility and accountability. Proper documentation is extremely useful for avoiding for avoiding the legal complications in the business functions outsourcing process. Tracking Performance Review Organizations should periodically review the performance of the outsourcing organization. Moreover, the organization should ensure that the outsourcing organizations are progressing with the business functions as per the organizational standard and mission. In case of any shortfall, the organizations should ensure that the shortfalls are rectified as soon as possible (Maley et al., 2015). It will ensure the quality of the service provided by the outsourcing companies. Regular Communication Organizations should maintain regular communication with the outsourcing service providers. Moreover, the organization should conduct regular conference calls with the service providers and raise the issues, clarification and explanation for the functions (Runar Edvardsson Durst, 2014). In this way, they should also check the progress of the functions. Gap of the Literature The above literature helped in understanding the advantages of outsourcing business functions however, the disadvantages were not completely explored by the authors. The reason might be due to the presence of various business models however none of the outsourcing models found to be exemplary for one particular business. It has been also evident that authors never provided any concrete recommendation for appropriate business outsourcing. There might be various advantages but the procedures for reducing challenges were never realistic. Therefore, in future finer advantages of business process outsourcing needs to be achieved and described through data collection using both primary and secondary approaches. Conclusion While concluding the study, it can be said that outsourcing business functions allows the organizations in freeing up some time and energies. The organizations can use such freed up time and energies in concentrating on the core business functions for developing their brand value in the market. Outsourcing business functions actually saves the organizational cost and time though assigning some functions to other third party service provider. Moreover, organizations can also avail wide pool of expertise and talented employees for performing their business functions effectively. However, in business process outsourcing, the organizations cannot get direct managerial control on the outsourcing business functions. Therefore, the quality of the services can be deteriorated. References Chou, S. W., Techatassanasoontorn, A. A., Hung, I. H. (2015). Understanding commitment in business process outsourcing relationships.Information Management,52(1), 30-43. Eshuis, R., Norta, A., Kopp, O., Pitknen, E. (2015). Service outsourcing with process views.IEEE Transactions on Services Computing,8(1), 136-154. Gerbl, M., McIvor, R., Loane, S., Humphreys, P. (2015). A multi-theory approach to understanding the business process outsourcing decision.Journal of World Business,50(3), 505-518. Gorla, N., Somers, T. M. (2014). The impact of IT outsourcing on information systems success.Information Management,51(3), 320-335. Gunasekaran, A., Irani, Z., Choy, K. L., Filippi, L., Papadopoulos, T. (2015). Performance measures and metrics in outsourcing decisions: A review for research and applications.International Journal of Production Economics,161, 153-166. Han, K., Mithas, S. (2013). Information technology outsourcing and non-IT operating costs: An empirical investigation.Mis Quarterly,37(1). Lacity, M. C., Willcocks, L. P. (2013). Outsourcing business processes for innovation.MIT Sloan management review,54(3), 63. Lacity, M., Willcocks, L. (2014). Business process outsourcing and dynamic innovation.Strategic Outsourcing: An International Journal,7(1), 66-92. Liu, C., Huo, B., Liu, S., Zhao, X. (2015). Effect of information sharing and process coordination on logistics outsourcing.Industrial Management Data Systems,115(1), 41-63. Liu, S., Deng, Z. (2015). Understanding knowledge management capability in business process outsourcing: a cluster analysis.Management Decision,53(1), 124-138. Luo, Y., Wang, S. L., Jayaraman, V., Zheng, Q. (2013). Governing business process offshoring: Properties, processes, and preferred modes.Journal of World Business,48(3), 407-419. Maley, J. F., Kowalkowski, C., Brege, S., Biggemann, S. (2015). Outsourcing maintenance in complex process industries: Managing firm capabilities in lock-in effect.Asia Pacific Journal of Marketing and Logistics,27(5), 801-825. Oshri, I., Kotlarsky, J., Gerbasi, A. (2015). Strategic innovation through outsourcing: the role of relational and contractual governance.The Journal of Strategic Information Systems,24(3), 203-216. Rekik, M., Boukadi, K., Ben-Abdallah, H. (2015). A decision-making method for business process outsourcing to the cloud based on business motivation model and AHP.International Journal of Cloud Computing 2,4(1), 47-62. Runar Edvardsson, I., Durst, S. (2014). Outsourcing of knowledge processes: a literature review.Journal of Knowledge Management,18(4), 795-811. Schoenherr, T., Narayanan, S., Narasimhan, R. (2015). Trust formation in outsourcing relationships: A social exchange theoretic perspective.International Journal of Production Economics,169, 401-412. Teo, T. S., Bhattacherjee, A. (2014). Knowledge transfer and utilization in IT outsourcing partnerships: A preliminary model of antecedents and outcomes.Information Management,51(2), 177-186. Tjader, Y., May, J. H., Shang, J., Vargas, L. G., Gao, N. (2014). Firm-level outsourcing decision making: A balanced scorecard-based analytic network process model.International Journal of Production Economics,147, 614-623.

Tuesday, December 3, 2019

Masks Of Hamlet Essays - Characters In Hamlet, Prince Hamlet, Hamlet

Masks Of Hamlet Masks of Hamlet In Shakespeares tragedy, Hamlet, there is a prevalent and almost overwhelming theme. All throughout the play, all of the characters appear as one thing, with one standpoint, and one outlook. However on the inside, all of these characters are completely different. This mask theme, the way that all of the characters portray themselves as one person on the outside and one different one on the inside, is not in the least disguised by Shakespeare. Claudius, the murdering king, appears to be a somewhat kind, caring, and friendly person. But inside he is different. He is cold, calculating, and self-serving. But this might also be a mask. The women in the play, Ophelia and Gertrude, both use a type of mask to cover what is obvious in their lives, masking it so that they can continue living as if their existence was without cruelty. And finally Hamlet hides behind his madness, be it real or pretend, a person who is indecisive and spiteful. Masks in this play are not just a theme; they are the whole basis of it. The mask theme develops throughout the play as various characters try to cover their secret intentions with a veneer of a whole other person. One of the most obvious, of course is Claudius. Claudius murdered his brother, the former king Hamlet, in order to become king himself. This murder, which was done in secret, with no one but Claudius knowing that the act was committed by him. Not only is he the King of Denmark, but he is also married to Queen Gertrude, his brothers former wife. These hideous and awful crimes have not been punished, and no one knows that Claudius has done this. When Claudius confronts anyone, he must become someone totally different. Claudius puts on a mask of his own. He is no longer the self-serving, cold, calculating man that he really is, out he becomes a kind, caring man who does his very best to ensure that Gertrude stays with him, and also so that he can do his best to keep Hamlet from trying to take the kingdom and destroy what Claudius has worked for so long to gain.To this end Claudius wears his mask. But is Claudius really the mask or what he is underneath? This is called into question when Claudius tries to seek redemption for his sins. This scene shows that his character, like Hamlets is not quite as clear cut as most men. Claudius wrestles with his guilt by asking himself, ^Where to serves mercy/ But to confront the visage of offense?/ And that^s in prayer but his twofold force,/ to be forestalled are we come to fall,/ Or pardoned being down?^ He then answers his own question by saying, ^But, O, what form of prayer/ can serve my turn? ^Forgive me my foul murder?^/ That cannot be, since I am still possessed/ of those efforts for which I did the murder!/ My crown, mine own ambition, and my queen.^ So Claudius comes to the understanding that, even though he wears redemption like his outside self, his real self cannot give up the trappings of this position. Claudius, in his questioning, has separated the mask from the person and has found that the mask is the fake Claudius. Not every character is so confused as to their nature, however. The females roles in Hamlet are confused in a much different way. Both Ophelia and Gertrude mask themselves to the harsh realities of their life. Ophelia^s mask is far more fragile than any other. Despite Hamlets almost incessant cruelty to Ophelia drives her, eventually insane. She puts up a defense at first, trying to protect herself from Hamlet^s cruelty, but it fails. Ophelia believes for awhile , that Hamlet loves her deeply, and that he would never harm her directly. But soon, through his words and his actions, such as killing her father, shatters her mask that served to protect her from Hamlets assaults. When the truth and reality bit her, she breaks under its pressure and commits suicide. Gertrude, the other woman in the play, has a much stranger mask. She refuses to see or believe the truth that Hamlet shows her,

Wednesday, November 27, 2019

Field and Query free essay sample

Traders Project Description: In this project, you will create several queries, use grouping and sorting criteria, and create expressions to make calculated fields. You will also set numeric and date criteria to produce specific results. Instructions: For the purpose of grading of the project you are required to perform the following tasks: Step| Instructions| Points Possible| 1| Start Access. Open the downloaded Access database named Exploring_a03_Grader_EOC. accdb. | 0| 2| Create a new query in Design view. Add the Customers, Orders, and Employees tables to the query design window. From the Customers table, add the CompanyName, ContactName, and ContactTitle fields; from the Orders table, add the OrderID, OrderDate, and ShippedDate fields; from the Employees table, add the LastName field. Be sure to add the tables and fields in the order listed. | 7| 3| In the first empty field cell of the design grid, create a new field in the query named DaysToShip that subtracts the OrderDate from the ShippedDate. We will write a custom essay sample on Field and Query or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page In the criteria row of the DaysToShip field, enter gt;20. | 10| 4| Run the query and then save it as Shipping Efficiency. | 5| 5| View the query in Design view. Add the Order Details table to the query window, and then add the ProductID and Quantity fields (in that order). Sort the query in ascending order by OrderID. | 5| 6| Set the caption property of the LastName field to SalesRep. Run, save, and then close the query. | 6| 7| Create a new query in Design view. Add the following tables in this order: Orders, Order Details, Products, and Customers. From the Orders table, add the fields OrderID and OrderDate (in that order) to the query design grid. | 6| 8| In Design view, add a Total row to the query. In the first empty field cell of the design grid, create a new field in the query named ExtendedAmount that multiplies Quantity by UnitPrice (in that order). Select the Sum function from the Total row in the new field. | 15| 9| In the next empty field cell of the design grid, create a new field in the query named DiscountAmount that multiplies Quantity by UnitPrice by Discount. Select the Sum function from the Total row. Format the calculated field as Currency. | 13| 10| Run the query and then save it as Order Summary. | 5| 11| View the Order Summary query in Design view. Set the criteria for the OrderDate field to return dates between 5/1/2012 and 5/31/2012. Run, save, and then close the query. | 8| 12| In the Navigation Pane, copy the Order Summary query and paste it into the database as Order Summary by Country. View the new query in Design view. | 8| 13| Replace the OrderID field with the Country field (from the Customers table). Sort the query by the ExtendedAmount field in Descending order. Run, save, and then close the query. | 12| 14| Close the database and then exit Access. Submit the database as directed. | 0| | Total Points| 100|

Sunday, November 24, 2019

Cofer And Staples Essay Example

Cofer And Staples Essay Example Cofer And Staples Essay Cofer And Staples Essay Also their lack Of English they had and the differences between her race and the American race. Both of the writers are informing readers of how deeply Puerco Ricans and blacks are stereotyped. Moreover of how their race is being judged and discriminated against just from what they see and hear. First of all Staples explains how white women and other people view him by the color of his skin and appearance. In the essay he states a white woman is walking a distance from him but she gives off a negative vibe by glancing behind her. She avoids eye contact from him and made her think he is up to no good. However Staples stated he is A softy who is scarcely able to take a knife to a raw chicken. This demonstrated to him that she was judging him by the color of his skin, black a dark color used to depict African Americans. It showed Staples that white women would depict him as dangerous. It also showed him that people stereotyped African Americans as the people who are up to no good. In another subject Coffers essay also had the same conflicts dealing with race, stereotype, and ethnicity. It conveyed how Puerco Rican women were viewed and misunderstood as well as being labeled by people outside her race. In the essay she also talked about wanting to fit in but she could not because of her tradition and culture. The differences between what she had to wear and what American people wore was stereotyped as well. This is because American people dressed up modernly and dull but Puerco Rican girls stood out too much. The way they dressed was too flashy and too vibrant. Coffer also conveyed how Puerco Rican women were portrayed by movies Americans would watch. She explains that Americans would just take what they see from a movie and assume that Puerco Rican people are exactly how they are seen in movies. When they do not know exactly nothing about Puerco Rican people. Another thing she pointed out was how Americans assumed that Puerco Rican people were uneducated and had a lack of English speaking. Although Coffer wanted to imply that even though she had a hard time growing up she still succeeded her goals. However Americans are just used to judging new people and new things as either dumb or too flashy or worse. One idea about racial and ethnic stereotype that is important is that Americans have their ways of judging as well as other types of cultures and race doing the same. Although ACH race and ethnicity is equally the same just they are viewed differently. The Puerco Rican women are viewed as uneducated and do not exactly know how to dress well. However they can do just the same as any other person from any race. They can succeed in what they want to pursue without taking harsh judgments and not caring about others views on themselves. They can fit in if they wanted to by telling people outside of their culture and race what type of person they are. Furthermore Staples is viewed as dangerous because of his skin color. However he implies that people are just judging him and believing what they hear and see. Making that one race or culture look bad even though people do not know anything about them. Another important thing is that both writers are trying to ideally show that people tend to stereotype any race and any ethnicity that is out there. They talk of how they look, their education, and two big ones are the skin color and the way their English is. In Staples essay he evidently shows how white women specifically view him. One where he Was just walking behind the woman and she grew suspicious of him and had the thought of him being up to no good. It demonstrated the way white women judged black men. He also implied how people would just judge a person by the skin color assuming that, is the way the person is without even knowing anything about the person. Staples also stated how his presence on another effected the way people viewed him. Also how the reaction of others affected him also in return. As for Coffer she used evidence that stereotyped her appearance and her education. She implied that all Puerco Rican women were stereotyped by the way the dress and the way they spoke English. It had an effect on her that she could not fit in with the community. All in all both writers had the same conflicts that they held to heart. It affected them in many ways. They were being judged either by their appearance or the color of their skin. As well as the way they spoke English or even their education. They are alike because both felt that they wanted to fit into the community. Coffer and Staples experienced the judgments of others on themselves and it affected them in the same way too. They both were a race where people on the society would judge harshly. Staples was judged based on his looks as well and Coffer had the same thing affecting her. However they both implied that the judgments made on them provoked them to succeed either way. They both conveyed that even though they had it cough they still succeeded and they did not let the views of others affect them so harshly.

Thursday, November 21, 2019

Gobal Financial Investment Essay Example | Topics and Well Written Essays - 750 words

Gobal Financial Investment - Essay Example This paper illustrates that the first option available to the UAL, Inc. is to borrow the required investment amount of $500 million in the local currency that is US Dollars. At the initiating stage of the loan agreement, the company has to pay an underwriting fee of 0.5% of the total principal amount and therefore, it is added to the cost of borrowing. This option does not involve in exchange rate risk, however, there is surely an element of the change in the inflation rate which could affect the time value of the currency over a period of 10 lean years. However, this element has been ignored for this report. The company can borrow $500 million at a rate of 11% with two semiannual interest payments due in June and December every year. This implies that the rate which is quoted annually needs to be adjusted for semiannual payments and the number of payment periods will also be adjusted for the same reason. The interest rate adjusted will be 11% divided by 2 which is equal to 5.5% of t he total principal amount to be paid semiannually. The total number of payment periods will, therefore, be 20 as the loan period is for 10 years. Moreover, there are no principal repayments during the 10 years tenure and the whole amount of $500 million is to be settled at the end of the loan term. By placing the available information in the following table and calculating the future value it can be ascertained that the future value of borrowing under this option is $1,458,878,745. This value will be compared with the future value obtained under the second option. The second option available to the company is to borrow $500 million denominated in Japanese Yen from the leading Japanese Bank. The current exchange rate between US Dollars and Japanese Yen is at 250 which will result in borrowing of JPY 125 billion at an annual interest rate of 5%. Since the interest payments are semiannual therefore this rate has to be adjusted along with the number of payment periods as in the previous option.

Wednesday, November 20, 2019

Social Context Account Essay Example | Topics and Well Written Essays - 1500 words

Social Context Account - Essay Example For one to look back at the past and analyse its effect in life today, the present has to be favourable according to the individual in question. This means that if the past influenced one’s life so badly that the present is damaged, only counselling or other forms of therapy can remedy the situation and enable one to look back at the events of their past.1 Depending on an individual, the social environment one grows in can make or break one’s character. For instance, some people are discouraged by discriminative backgrounds till they psychologically believe they are not worth better treatment. On the other hand, others consider maltreatment as a challenge which if overcome, one emerges not only a stronger, but also a better person. Due to the unpredictable nature of a child’s reaction to the social environment, there are many organizations committed to ensuring that children are protected from harsh social conditions. In addition, many governments have signed tre aties and passed laws to protect young citizens.2 _____________________________ 1 A James, and A Prout (eds), Constructing and Reconstructing childhood: contemporary issues in the sociological Study of Childhood, Falmer Press, London, 1997. 2 R Appignanesi, and O Zarate, Freud for Beginners, Icon Books, Cambridge, 1992. Background information My parents were born and brought up in Bangladesh after which they moved to London, UK. I was born on April 4, 1989 in London where I have lived ever since. The UK and Bangladesh are countries with many contrasting characteristics that are mainly due to their geographical locations, economic, political, and religious practises found in the two countries. Bangladesh is found in southern Asia while UK is situated in northern Europe. Bangladesh is mainly an Islamic country while the most dominant religion in the UK is Christianity. In society, religion plays an important role in how the society operates since it provides a basis for moral and ethi cal standards. In the UK, the church and government are separate entities and that is why the society in London is considered secular and has markedly different characteristics compared to that of Bangladesh where religion determines the kind of lifestyle people live. Comparison between UK and Bangladesh Christianity, mostly Anglican, is the dominant religion in the UK while Bangladesh is mostly Islamic. The cultures of the two countries are composite, having components derived from all over the world. Both countries are members of the UN and have signed the United Nations convention on the rights of the child (UNCRC) which seeks to ensure that minors enjoy basic rights and are protected from unfair treatment. However, the countries differ in the way they enforce these laws since in Bangladesh, children are still recruited into the armed forces among other forms of mistreatment. This means that a child growing up in Bangladesh is likely to be affected by these vices directly or indi rectly. On the other hand, the UK is strict in assuring her citizens of their rights and, therefore, children enjoy more rights and freedoms compared to their Bangladeshi counterparts. 99 percent of the population in the UK is literate as compared to a mere 43.1 percent in Bangladesh. Education has a huge impact on how people relate to each other and their interpretations of everyday phenomena. On the other hand, the educated population in UK is more corrupt at 7.7 perception index compared

Sunday, November 17, 2019

Financial accounting Research Paper Example | Topics and Well Written Essays - 1500 words

Financial accounting - Research Paper Example Practice 3-1 Solution: a. The accounts impacted by the transaction are 'Cash' and 'Notes Payable' b. Both 'Cash' and 'Notes Payable' accounts increased. c. 'Cash' and 'Notes Payable' accounts increased by $5,000. d. Total Assets increased by $5,000, Total Liabilities increased by $5000, Total Equity, however remained unchanged. Practice 3-2 Solution: a. The accounts impacted by the transaction are 'Cash' and 'Land' b. 'Cash' account decreased while 'Land' account increased. c. 'Cash' decreased by $45,000. 'Land' increased by $45,000. d. Total Assets, Total Liabilities and Total Equity remained unchanged. Practice 3-11 Solution 20XX May 1 Cash.. . 125,000 Notes Payable.. 125,000 Borrowed from Far West Bank signing a 2-yearnote at 14% Practice 3-12 Solution 20XX May 14 Land.. 45000 Cash.. 45000 Bought land on west side of Hatu Lake Practice 3-16 Solution Refer to Practice 3-11 Notes Payable 20XX 20XX May1 Beg. Bal. 0 May1 Cash 125000 May30 End. Bal. 125000 Cash 20XX 20XX May1 Beg. Bal. 0 May1 Notes Payable 125,000 May30 End. Bal. $125,000 Refer to Practice 3-12 Land 20XX 20XX May1 Beg. Bal. 0 May14 Cash 45000 May30 End. Bal. $45000 Cash 20XX 20XX May1 Beg. Bal. 0 May 14 Land 45000 May30 End. Bal....These are called "generally accepted" because they are widely accepted by business community. Otherwise, these rules will have no application in business. In the USA, Financial Accounting Standard Board (FASB) develops GAAP. It is a private body that sets both broad and specific rules (Wild, 2005). Securities and Exchange Commission (SEC) is another government entity that sets reporting requirements for companies that issues stock to general public. In addition to above-mentioned two bodies, there is another board called International Accounting Standards Board (IASB) that establishes International Financial Reporting Standards. This is an attempt to establish a harmonious and consistent system of accounting throughout the globe. However, IASB cannot impose these rules to organizations. The main objective of GAAP is to make financial information "relevant, reliable and comparable" (Wild, 2005). Managers' decisions are highly affected by the relevant financial information. Adherence to GAAP offers reliability to financial information and wins the trust of the user. Good understanding of these principles is necessary especially when you are comparing the performance of two or more companies, especially when the companies belong to different industries or countries. An adjusting entry is necessary to bring assets/ liabilities and revenu

Friday, November 15, 2019

temperature on the activity of liver

temperature on the activity of liver Introduction: Catalase is a common enzyme found in living and it acts as a protective mechanism for delicate biochemical machinery of cells. The enzyme catalyzes the exothermic decomposition of hydrogen peroxide to water and oxygen. 2 H2O2 → 2 H2O + O2 Hydrogen Peroxide is a by product produced by many living organisms during the process of metabolism. Hydrogen Peroxide is a very toxic substance (a power oxidizing agent) to cells and must be broken down in order to protect the cells from subsequent damage. Aim: The aim of the experiment is to investigate the effect of varying temperature has on the rate of enzyme catalyzed reaction. The focused reaction is the decomposition of hydrogen peroxide with the enzyme catalyze. The presence of catalase can be demonstrated by dropping a small piece of fresh liver tissue into dilute hydrogen peroxide solution. In this experiment, pieces of liver tissue will be put into different temperatures of water for 5 minutes. After that the liver tissues will be placed into separate solutions of hydrogen peroxide and the amount of oxygen gas produced in a minute will be measured using a gas syringe. Hypothesis: Temperature is a measurement of the degree of hotness or coldness of a body or environment. More specifically, it is a measure of kinetic energy in a sample of matter. On a molecular level, temperature is the result of motion of particles which make up a substance. As the temperature increases, the motion also increases. The motion may be due to external energy applied to the particle of internal energy from the vibration of the particle. As temperature is increased, molecules have increased active energy and reactions between them and the probability that the particles will collide with each other will also be greater, this increasing the rate of reaction. In chemical reactions, for every 10 °C rise in temperature, the rate of reaction approximately doubles. This property is known as the temperature coefficient of a chemical reaction. However in a enzyme catalyzed reaction the effect of temperature is more complex, for proteins change shape by heat. There are many factors that can affect the structure of a protein such as temperature and ph. When a protein is exposed to heat, it causes the atoms to vibrate violently, breaking and disturbing bonds within the protein, therefore changing the chemical characteristics of the protein. I hypothesize that as the temperature of the water bath that the liver tissue is exposed increases; the amount of oxygen gas liberated will also increase up. I believe that there will be an optimum temperature for the enzyme and going pass the optimum level will cause a drastic decrease in enzyme activity (less oxygen gas will be produced). Since catalase is found in almost all living things, including humans, I predict that the optimum temperature for catalase will be Variables: Independent Variable Temperature of water bath liver tissue is placed In ( °C) Dependant Variable Volume of oxygen produced in a minute (ml/min) Controlled Variable Concentration of the Hydrogen Peroxide Volume of Hydrogen Peroxide Mass of liver tissue The concentration of hydrogen peroxide must be kept constant because according to the Collision Theory proposed by Max Trautz and William Lewis in 1916 and 1918, increasing the concentration, increases the chances of particles hitting each other. The volume of hydrogen peroxide should also be kept constant. Increasing the volume of hydrogen peroxide increase the substrate concentration and thus increasing the rate of reaction. Finally the mass of liver tissue should also be kept constant to try control the amount of enzyme molecules present. Increasing the number of enzymes means there are more active sites present and substrate molecules do not have to â€Å"queue up† for access to an active site. Ultimately increasing enzyme concentration can also result in an increase in rate of reaction therefore the mass of the liver tissue should also be controlled. Equipment: Equipment Quantity Notes Digital Stop Watch 1 Thermometer 1  ± 0.5 °C Digital Balance to two decimal places 1  ± 0.01g Conical Flask 7 250ml Beaker 1 500ml (for water bath) Gas Delivery Tube 1 Gas Syringe 1  ±0.5ml Retort stand 1 Clamp 1 Boss 1 Bench Mat 2 Safety Goggles 1 Deionized Water Bottle 1 Packet of Ice 1 Used for temperature below 30 °C Matches 1 Used to light Bunsen Burner Chemicals -Dilute Hydrogen Peroxide H2O2 1 Concentration (2M) Volume (800ml) Safety Note: Eye protection should be worn at all times If liquid gets into eye, flood the eye with a gentle running tap for 10 minutes and seek medical attention If hydrogen peroxide is spilt in the lab, cover it with mineral absorbent. Dilute with water and wash liquid. Hydrogen peroxide should be stored in a dark brown bottle and care must be taken when removing the cap as it is possible that pressure may have built up inside it. Method: Draw up a suitable table or tables to record the results. Carefully cut 7 pieces of cow liver tissue using a knife and a cutting mat. Weigh each piece of liver tissue carefully on the electric balance. Make sure each liver tissue weighs roughly around 0.5 grams. Place each liver tissue into a separate boiling tube and add 40ml of deionized water to each boiling tube once the liver tissue is situated at the bottom of the boiling tube. Place the heating mat on the table with the tripod on top of the heating mat. Gently place the gauze on the tripod. Once this is done, place the beaker on the tripod and slowly heat up the water with a Bunsen burner. Place a boiling tube with a liver tissue sample into the water and put a thermometer in the tube. Heat the beaker until liver sample solution reaches 70 °C. Measure temperature of water with a thermometer. After that, carefully measure out 100ml of hydrogen peroxide with a measuring cylinder and transfer the solution to a 250ml conical flask. Connect one end of the gas delivery tube to the gas syringe and the other to the conical flask Remove the liver tissue from the boiling tube with a pair of tweezers and place it into the conical flask with the hydrogen peroxide. Quickly cork the conical flask once the liver tissue is dropped into the solution of hydrogen peroxide. Beginning timing the time once the liver tissue touches the hydrogen peroxide solution. Stop the stop watch after 1 minute and record the amount of gas produced. Read off the gas syringe. When the reading is taken, remove the cork and dispose of the hydrogen peroxide in the chemical waste container. Repeat the above steps until data points from 10 °C to 70 °C are recorded.. For readings below 30 °C, cool the liver tissue sample with an ice bath. Diagram: Results: Table of Results Volume of Gas Produced in a Minute (ml) Temperature ( °C) Trial 1  ±0.5ml Trial 2  ±0.5ml Trial 3  ±0.5ml Average ±1 ml 20 32.0 33.0 35.0 33 30 40.0 36.0 41.0 39 40 45.0 47.0 50.0 47 50 54.0 52.0 54.0 53 60 63.0 60.0 65.0 63 70 43.0 37.0 40.0 40 80 4.0 2.0 4.0 3 Table 1.0 Raw Data Table 1.1 Qualitative Observations Temperature ( °C) Observations 20 Effervescene, gentle bubbling in solution 30 Effervescene, gentle bubbling in solution 40 Greater effervescence, more bubbling in solution 50 Vigorous effervescence and bubbling 60 Violent effervescene, violent liberation of gas, bubbling in solution 70 Effervescene, gentle bubbling in solution 80 Bubbling in solution Graph 1.0 Temperature and the Amount of Oxygen Liberated from Liver Tissue Sample Graph 1.0 The graph above shows the relationship between the temperature of the water bath the liver tissue sample was put it and the amount of oxygen gas liberated from the sample after dropping it in dilute hydrogen peroxide in 1 minute. The graph clearing shows that as the temperature increases, the amount of gas also increases up to 60 °C. From 60 °C onwards, the amount of oxygen gas produced decreases drastically and there is a downward slope of the curve. Discussion: From the data obtained, there is an increase of oxygen produced as the temperature of the water bath increases. This trend however only applies to the data points from 20-60 °C. At 70 °C however, there is a significant drop in the amount of oxygen gas produced and at 80 °C, the amount of oxygen gas produced is less than 5ml. From the graph, the relationship is clearly represented. Up to about 60 °C the amount of oxygen gas produced increases and ten-degree rise in temperature is accompanied by 6-7ml increases in oxygen gas produced. The amount of oxygen gas produced decrease at high temperatures as shown from 70-80 °C. So as the temperature rises, the amount of enzyme progressively decreases and the amount of gas produced is less. As a result of these two effects of heat on enzyme, there is an apparent temperature for an enzyme. Using the graph, the optimum temperature of catalase is approximately at 60 °C. The properties of a protein greatly depends on its three dimensional shape of the molecule. Exposure to heat causes the atoms to vibrate violently and this can cause bonds within the protein between different amino acid to break, resulting in a loss of the proteins biological properties. This is known as denaturation of a protein. Heating causes a proteins biological properties to change such as optical rotation, shape of active site and bonding. The active site of the enzyme is what defines the enzyme. If the active site changes, the substrate molecules will no longer fit the active site of the enzyme. This is shown in the diagram below. A proteins stability depends primary on the hydrophobic effects and to a lesser extent, by the interactions between polar residues and by other types of bonding. There are four levels of protein structure each playing a significant in the stability of the protein. The primary structure of a protein is the sequence of amino acid residues attached by peptide linkages. Proteins differ in the variety, number and the order if their constituent amino acids. Changes is just one specific amino acid in the sequence of a protein can alter a proteins property. The secondary structure of a protein develops when parts of the polypeptide chain take up a particular shape. The most common shapes are either coiling to form ÃŽ ± helixes or into ÃŽ ² sheets. The tertiary structure of a protein is the distinctive and precise structure, unique to that specific protein. This is usually the result of further folding and interactions within the molecule. The shape is held together permanently by four differ ent types of bonds: hydrogen bonding between hydroxyl and ketone functional groups, Van der Waals forces between neighboring atoms, disulphide bonds between two cysteine side chains and ionic bonds between oppositely charged ions. The stability of a protein is dependant of the balance of these three structures. Altering the balance of forces that maintains the native conformation of the protein will lead to denaturation. Conclusion: The hypothesis put forth before the experiment was correct. As the temperature of the water bath that the liver tissue is exposed increases; the amount of oxygen gas liberated will also increase up to a certain level. That level would be the optimum temperature of the enzyme and the optimum temperature of catalase deduced from the experiment is approximately 60 °C. Pass the optimum temperature, the amount of oxygen gas produced drastically decreases as the enzyme is starting to denature. At 80 °C, the enzyme is almost fully denatured and only a small amount of oxygen gas is produced. The literature value for the optimum temperature of catalase in human is about 37 °C which is the body temperature of a typical human being. The liver sample was taken from a cow and both cows and humans are able to regulate their own temperature. From this we can deduce that the optimum temperature of catalase for a cow should be roughly similar to a humans and somewhere around 37 -40 °C. The op timum temperature obtained from the experiment is 60 °C, this suggests that there may have been deviations or variations within the data. Limitation to Experiment: There are several limitations to our experiment to the experiment. One of the main limitations was controlling the temperature of the water baths. The temperature began to drop gradually once the boil tubes were placed into the beaker. This may have caused deviation and variations within the data. Another limitation was that the experiment was only repeated 3 times and there may still be room for anomalies and errors. Evaluation: As long as the temperature of the water baths were kept constant and the amount of gas produced was measured and read correctly, a good approximation of the optimum temperature of catalase in a cow can be found. However there are several key improvements that can be made. When the liver tissues were cut a lot was wasted and some of it got stuck to the spatula and to the top of the test tube. To compact the problem in the near future, the liver tissues stuck onto spatula could be washed off using a tiny amount of water or shook gently to try remove some of the liver tissue. The method for collected the oxygen gas could also have been improved. Some gas was lost due during the time it took me to insert the bung into the test tube. To minimize the amount of gas lost, have a partner put the bung on for you while you drop the liver tissue into the measuring cylinder. The temperature of the water baths started to drop after a few minutes and this may have lead to some slight deviation with in the data. In future make sure that the temperature of the water bath does not change too significantly. A slight modification would be to cover the beakers with a lid to prevent air from escaping. Another problem that arose during the experiment was keeping the temperatures of the water baths constant during tests and between trials. The problem was that different temperatures of liver samples were tested and it wouldnt be feasible to use a electronically controlled water bath to perform each test. The result was that a Bunsen burner was used but this creates several problems. It was extremely difficult to get exact temperatures and maintain them throughout the experiment. In future, the use of a heating plate would be more practical so as to prevent drastic changes in temperatures. To improve the experiment it may be better to use a solution of catalase rather than a liver as a source of catalase. By using a solution, the concentration and volume could be controlled and would be the whole experiment into a fairer test. Overall the results obtained have helped support the hypothesis put forth before the experiment. Finally the experiment could have been repeated a few more times so that a better average could be drawn from the data, resulting in a more reliable and accurate conclusion. References Clegg, C. J. (2007). Biology for the IB Diploma. London: Hodder Murray. Ophardt, C. E. (2003). Denaturation of Proteins. Retrieved January 3, 2009, from Elnhurst College Web site: http://www.elmhurst.edu/~chm/vchembook/568denaturation.html Roberts, M. B. (1986). Biology a functional approach (4th ed.). Canada: Nelson. Voet, D. J., Voet, J. G., Pratt, C. W. (2008). Principles of Biochemistry. NJ: Jon Wiley Sons, Inc.

Tuesday, November 12, 2019

Diversity in Crash Essay

The movie Crash (2004), directed by Paul Haggis, is full of different racisms, social and multicultural differences. There are seventeen different characters in this movie ranging from different race, gender, social class and ethnicity. These are stereotypes that people face every day of their lives. Crash really shows the assumptions that we make of others and how people of different backgrounds interact with each other. The movie really made me realize how I act in these types of situations. This movie not only shows the multicultural differences in society, but I think places an emphasis on it within the criminal justice system. In one of the first scenes we see a Persian man with his daughter in a gun store trying to purchase a gun. The owner of the store who is a white male has a very negative attitude towards the man and his daughter. His attitude and gestures really show the negative stereotypes towards the Persian race. The store owner made remarks regarding the attacks on 9/ 11. The store owner is associating them with the Arabs that actually attacked the U.S. Anyone from the Middle East seems to fall under the same category for the store owner. There are many stereotypes that have been around for years, no matter how hard we have tried to get rid of them. Sandra Bullock’s character had made the statement, â€Å"If a white woman sees two black men walking towards her and turns the other way, she’s a racist. Well I got scared and didn’t say anything, and the next thing I knew, I had a gun shoved in my head!† This was a turning point for her and her beliefs. Although the men who shoved a gun to her head were black, she started to be racist towards anyone that was not white. A Hispanic male was changing the locks on her house and she automatically started throwing insults at him. Sandra figured that he would make copies of the keys and come back and break into her house. The way Sandra acted; I think is how most people may respond to situations like that. This can be especially true for the police departments. When an officer has a bad experience with another race while on duty, it can affect other situations the officer may come across with the same race. The officer may think that everyone of that race is the same way. I have always believed that racism, social and multicultural differences were a result from how we were brought up. I believed that if your parents were racist, then you too would be racist. At first, Matt Dillon’s character showed the signs of this theory. Dillon showed that he had a very close bond with his father, which I assumed where he learned his behavior from. This would end up being the furthest from the truth. Dillon’s beliefs come from working on the LAPD for many years and the frustration that he would have at his father’s doctor’s office. At the doctor’s office, Dillon believed that the lady was not trying her hardest to help his father, because she was black. Police corruption is not something that the public hears about a lot. Usually, this is something the police departments try to keep out of the media. There was a situation in the movie that really shows the corruption that can happen. Matt Dillon’s and Ryan Phillips characters are partners on the police force. One night on patrol they pulled over an SUV with a black couple inside. Dillon had offered to let them go without a ticket if the woman would perform sexual acts. As Ryan was looking on at the situation he saw that Dillon was groping and touching the woman inappropriately. While Dillon was assaulting the woman all her husband could do was look on. If he had tried to stop it he would have been arrested. I hate to think this happens, but I know that it does. Ryan decided that he no longer wanted to be Dillon’s partner. He went to his boss and tried to give reason as to why he wanted out. Ryan had to cover what Dillon did and come up with a different reason as to why he wanted a new partner. In our book Ethics and Morality in Criminal Justice explains and gives many examples of sexual misconduct. At the bottom of page 188 it talks about how officers would go â€Å"bimbo hunting.† This would include sexual harassment towards women out drinking, prostitutes and homeless women. These types of situations really show the corruption in a police department. Police chiefs do not want to bring negative attention to their force, so they usually end up covering up what is going on. As far as my personal experience, growing up in Arizona I was in contact with many different races and cultural back grounds. I would like to say that I do not judge people and give them a chance. However, this would not be true. I think we really do use previous experiences and judge others from those. If I were a police officer, I think it would be really hard not to carry over my experiences each time I have a run in with a certain race. I do know that if I witnessed police corruption going on that I would bring it to someone’s attention. We arrest those who sexually harass or rape others that are not on the police force. Therefore, I would not let them get away with anything just because they are an officer. Trouble facing stereotypes can happen anywhere. It is not restricted to race and cultural backgrounds. There are stereotypes against age, social class, gender and there are many more. These stereotypes can cause friction within the same ethnic backgrounds. Until our society takes control and changes these, then there will always be prejudice. The movie Crash really makes us take a look ourselves and how we behave and how much we are all alike in reality. There are so many different scenes in that movie, that there is at least one that we can all relate to.

Sunday, November 10, 2019

Teamwork in Action

TEAMWORK IN ACTION Retail store that sells music CDs 1. In retail store that sell music CDs, the single measure best reflects the overall level of activity is Number of CDs sold. – In respect to changes in the measure of CDs sold, a variable cost is a cost that varies, in total, in direct proportion while a fixed cost remains unchanged, in total, regardless of any change. ->Examples of fixed and variable costs in respect to small changes in the measure of selling CDs: Cost| Cost behavior| | Variable| Fixed| The cost of advertising new store| | X|Number of CDs supplied| X| | The cost of renting space for store| | X| The electrical cost in store| | X| The direct labor cost| | X| The cost of delivering CDs | X| | Variable Cost Number of CDs supplied| Cost of CD| Total variable Cost – CDs| 1| 35. 000| 35. 000| 50| 35. 000| 1. 750. 000| 100| 35. 000| 3. 500. 000| Fixed Cost Monthly Labor cost| Number of CDs sold| Average cost per CD| 5. 000. 000| 20| 250. 000| 5. 000. 000| 7 0| 71. 428,6| 5. 000. 000| 150| 33. 333,3| 2. Relationship between the number of CDs sold and others: Cost| Behavior of the cost| In Total| Per Unit| Fixed cost| Total fixed cost is not affected by changed in the number of CDs sold. | Fixed cost per unit decreases as the number of CDs sold rises and increases as this number falls. | Variable cost| Total variable cost increases and decreases in proportion to changes in the number of CDs sold. | Variable cost per unit remains constant. | | | | Total cost| Increases and decreases in proportion to changes in the number of CDs sold| Average total cost per unit| Increases and decreases in proportion to changes in the number of CDs sold|

Friday, November 8, 2019

American Psycho vs American So essays

American Psycho vs American So essays American Psycho vs. American society Director Mary Harrons American Psycho, portrays a man who appears socially, financially, and culturally successful to the outside world. But the same culture that he strives to conquer seems to lead him to horrible acts of violence. The mere idea of committing the acts of violence shows the downfalls of our current society. Some of these downfalls may be loss of respect for others, and a money driven mentality. Driven by Greed, Harrons Patrick Bateman is continually striving for improvements in his physical appearance, financial/social status, and masculinity. This continual need for improvement and desire for perfection by Patrick mirrors our American work ethic. American Psychos Patrick illustrates how his economic and social stature can mask his serial killer mentality. In a scene where he discusses movie reviews with his secretary while holding a nailgun to the back of her head. She has no idea of the nail-gun and thinks he is a normal, sane person because of his high social status. As he lures women back to his fancy apartment, he is using his money and nice things as a tool to commit these acts of violence. This ironic twist of a mans mentality relates to how what Newitz refers to as economic performance anxiety could force someone to do strange things as a result of a fear of imperfection. The interest of watching the cinema of serial murders may relate to an insanity caused by our own culture. Our capitalist society, although leads to some very financially successful people, may have deep emotional drawbacks to those that choose to participate in its workforce. The book Mythologies of Violence in Postmodern Media, edited by Christopher Sharrett discusses a desire to consume infinitely that is present in our current economic societys mind. This need for things, such as expensive cars, and nice houses logically lea...

Wednesday, November 6, 2019

Pennsylvania Vital Records - Births, Deaths Marriages

Pennsylvania Vital Records - Births, Deaths Marriages Learn how and where to obtain birth, marriage, and death certificates and records in Pennsylvania, including the dates for which Pennsylvania vital records are available, where they are located, and links to online Pennsylvania vital records databases. Pennsylvania Vital Records: Division of Vital RecordsState Department of HealthCentral Building101 South Mercer Street, Room 401P.O. Box 1528New Castle, PA 16101Phone: (724) 656-3100 What You Need to Know:Check or money order should be made payable to Division of Vital Records. Personal checks are accepted. Call or visit the Web site to verify current fees. All requests for 1906 and later records MUST include the signature and photo ID of the individual requesting the record. The online request service is not available for genealogy requests. Pennsylvania Birth Records Dates: From 1 January 1906 Cost of copy: $20.00 (certified from State Vital Records); $5.00 (non-certified from the State Archives) Comments: Access to Pennsylvania records of birth that occurred less than 105 years ago is restricted to immediate family members and legal representatives (spouse, parent, siblings, children, grandparents, grandchildren). Other family members (cousins, etc.) can obtain a copy of a birth certificate only if the individual is deceased and a copy of the death certificate is submitted with the request. Birth records older than 105 years are open to the public. With your request, include as much as you can of the following: the name on the birth record being requested, date of birth, place of birth (city or county), fathers full name, (last, first, middle), mothers full name, including her maiden name, your relationship to the person whose certificate is being requested, your purpose for needing the copy, your daytime telephone number with area code, your handwritten signature and complete return mailing address.Application for Certified Birth Certificate   Non-certified copies  of birth certificates  are only available for the years 1906- 1909 and  of death certificates for the years 1906–1964. These can be obtained from the State Archives, not through State Vital Records * For earlier records, write to Register of Wills, Orphans Court, in the county seat of county where event occurred. Persons born in Pittsburgh from 1870 to 1905 or in Allegheny City, now part of Pittsburgh, from 1882 to 1905 should write to the Office of the Register of Wills for Allegheny County. For events occurring in the City of Philadelphia from 1860 to 1915, contact the City of Philadelphia Archives (be sure to ask for a non-certified, genealogy copy). Online:Pennsylvania Birth Records, 1906–1908  with images and index available as a subscription database on Ancestry.com; free to residents of PennsylvaniaPennsylvania Birth Indices, 1906–1910 (free) Pennsylvania Death Records Dates: From 1 January 1906 Cost of copy: $9.00 (certified from State Vital Records); $5.00 (non-certified from the State Archives) Comments: Access to death records older than 50 years in Pennsylvania is restricted to immediate and extended family members and legal representatives. Records older than fifty years are open to the public and accessible through the Pennsylvania State Archives. With your request, include as much as you can of the following: the name on the death record being requested, date of death, place of death (city or county), your relationship to the person whose certificate is being requested, your purpose for needing the copy, your daytime telephone number with area code, your handwritten signature and complete return mailing address.Application for Certified Death Certificate * For earlier records, write to Register of Wills, Orphans Court, in the county seat of county where event occurred. Persons who died in Pittsburgh from 1870 to 1905 or in Allegheny City, now part of Pittsburgh, from 1882 to 1905 should write to Office of the Register of Wills for Allegheny County. For events occurring in City of Philadelphia from 1860 to 1915, contact the City of Philadelphia Archives (be sure to ask for a non-certified, genealogy copy). Online:Pennsylvania Death Indices, 1906–1965  (free)Pittsburgh City Deaths, 1870–1905Philadelphia City Death Certificates, 1803-1915Pennsylvania Deaths 1852–1854  (Ancestry.com subscription required) available for 49 of 64 counties Pennsylvania Marriage Records Dates: Varies by county Cost of Copy: Varies Comments: Send your request to the Marriage License Clerk for the County Court House in the county where the marriage license was issued. Online:Pennsylvania County Marriages, 1885–1950Philadelphia Marriage Indexes, 1885-1951Record of Marriages, 1885–1891; incomplete listing from various PA counties (free) Pennsylvania Divorce Records Dates: Varies by county Cost of copy: Varies Comments: Send your request to the Prothonotary for the County Court House where the divorce decree was granted.

Sunday, November 3, 2019

Assessment of a social networking company Essay

Assessment of a social networking company - Essay Example Among these sites, MySpace.com is undoubtedly the market leader. MySpace.com accounts for an impressive 47.4% of the total market share. Facebook is second on the list with the market share of around 18%. Orkut and Flickr are next in the list and they account for almost 7% of the market share, each. (MC Marketing Charts) Many experts claim that the websites operating in this industry may experience a fast growth and an eventual chill if they do not develop long-term strategies. For example, new websites can easily take away the market share of old, if they do not innovate and strategize their operations. To support their argument they give the example of Orkut. In the past, Orkut was growing at a very fast rate but it did not innovate as result new websites came and experienced a massive growth at the expense of Orkut. It is also believed that with the passage of time, as the industry matures, these sites are going to attract more and more traffic. This large turnover will encourage companies to advertise more on these websites. As a result, these websites will experience an even larger growth in their revenues. As a result, many big brands consider advertising on these sites as a better way to grab the attention of "target market" towards their products. (Nielsen) This industry, in the recent times, moved from niches to become one of the most coveted sectors. This growth has also caused creative destruction for the other mediums of marketing like radios and televisions. Earning Revenue from Advertising: The boom in social networking has blossomed opportunities for advertisers to start using these networks as a vehicle to reach their target market. For e.g. in Italy, Maserati is using social networking websites to reach out to its customers. However, if we analyze the situation, we can reach a conclusion that those advertisers who want to advertise on social networking sites have to overcome a few challenges. Though, advertising on the social networking websites is increasing, but it is still very less, compared to the number of people who use these networks. (Review) The diversified nature of the environment means that standard ads won't be able to succeed in this market, and it is imperative that different approaches should be tried to find out the mindset of people who use these networks. Since, advertising all over the world is losing credibility, it is better for these companies to advertise with a more humble and candid perspectiv

Friday, November 1, 2019

The Effects of Economic Aid to Third World Nations Term Paper

The Effects of Economic Aid to Third World Nations - Term Paper Example This question has been repeatedly being asked and emphasized on by various scholars over a long period of period. In 1972, Papanek was the first one to develop a constructive relationship between growth and aid. In 1985, Singh also seconded Papanek that a cohesive relation exists between the economic growth and aid in Third World nations. In 1993, Synder also propagated the ideas of Papanek and Singh but taking into consideration the size of the country. In 1997, Dollar and Burnside acknowledged this positive relation on the premise that it works nicely if the country is meticulous in making policies and it also implements policies according to donor countries, policymakers in beneficiary’s countries and also considers multilateral support firms. In 1999, El-Kaissay and Fayissa profound into this thought and reap the same positive correlation. (Duc) Aids come in several forms; for instance food assistance, military aid, humanitarian emergency support, etc. The growth aid has a lways been recognized as important for helping poor nations of the world to bring them out of impoverishment. The affluent nations of the world decided to give aid of 0.7% of their Gross National Income to poor nations in 1970 as an official global development support each year. But this target has never been achieved. Regardless of the fact that countries have given billions of dollars in cash to poor countries each year they have never met the standard set by them. Some scholars believe that aid has a pessimistic affect on the development of developing countries. In 2000, Knack argued that excessive aid destroys the quality of government, exploits it, and augments the corruption in that region and thus growth is affected negatively. In 2003, Roodman, Levine, and Easterly examined a huge sample size to test the premise of Dollar and Burnside, and the result they found didn’t quite support the positive relation proposed by Dollar and Burnside. (Schoolland) Every rose has a th orn. And thus aid does not come for free. It bears an expensive price to the developing nations. Mostly, the top most condition for aid is that the recipient country must buy over expensive services and goods from the donor nations. Also, the amount of aid is planned and set by affluent countries that following their protectionist policies restrict poor nations to access the market. Most assistance does not really go to the poor nations who are in most need of it. Furthermore, huge projects or enormous striking strategies are deemed to failure to assist the susceptible as mostly, money is used the wrong way. On the contrary, it has also been observed that developing countries with strong economic policies and high-quality governmental institutions have augmented their growth with aid rather than without it. The Gross Domestic Product of countries receiving aid has increased by 2.7% per capita in contrast to countries not receiving aid, with 0.5% per capita. But, some countries who o nly received some aid have achieved a 2.2& per capita of growth. It all basically depends how the aid is utilized; a sound management and high-support by rich countries leads to 3.7% per capital Gross Domestic Product according to World Bank. (Bovard, 1996) Let’s look at the impact foreign aid has on some countries. The current experience of South Asian countries is exemplary. With foreign aid, Bangladesh has

Wednesday, October 30, 2019

Intellectual Property Law Essay Example | Topics and Well Written Essays - 2750 words - 1

Intellectual Property Law - Essay Example England has been slow in adopting these rights as it is perceived as clashing with the principle of Freedom of Expression. The English contend that intellectual property rights costs public good. Advances in digital technology have shaken the grounds on which intellectual property stand. This has made people to focus more attention on coming up with ways of ensuring freedom of expression that would enhance the public domain whilst rewarding creativity. Image rights promote invention and creation that promote quasi monopoly or monopoly rights so as to accord creativity the credit it deserves. Celebrities in music, sports and media world have gained profound significance in the contemporary world. Product sellers and advertisers are increasing approaching celebrities for work as they want to be associated to this fame. Competitive brand ambassadors help popularize products and increase sales. The financial benefits that accompany the status of such celebrities implore the need to have a mechanism of protecting celebrities. Red Croz would need to know that there is the need to balance between their public and private lives. They are prone to misuse and exploitation, even if indirectly, by those who live and work around them. Image rights promote the right to privacy hence upholding the human dignity of such celebrities (Passman 2012, p.2). ... A device mark logo involves an image, for example, that of an animal. Red Croz’s logo is a stylized mark. The most common way to protect a logo is using trademark. Even so, this depends on how the mark will be used. When using a logo as a combined mark, it is enough to use a single combined registration. In instances where the elements in a logo are used separately, each element is registered separately and also in combination (Kemp & Hill, 2005). Copyright registration can also be used to protect a logo. In the United Kingdom, the creator of a work gets its copyright automatically. A contract is needed to change ownership of such a work. In the United States of America, one needs to register copyright of a work through Library of Congress. Proof is needed to stop another individual or business from using another’s logo. This is because the other business or individual could claim that their logo was stolen or copied. Establishing upfront solid evidence is important if logo copyrighted through registration. This evidence would be needed in a court of law when challenging logo infringement (Passman 2012, p.4). A logo can also be registered as a design or a trademark. Registering a logo as a design is more powerful than registering it as a copyright. Registering a logo a design helps deter logo copying. This registration allows a business or individual to stop others from using logos that are too close to theirs even if they did not copy them. In the United Kingdom and in the European Union has an allowance for design registration of logos. The registration is renewable after every five years for a period of twenty five years. Design registration of a logo is given a period of one year after which

Monday, October 28, 2019

Experiment to Find the Acceleration Due to Gravity Using Free

Experiment to Find the Acceleration Due to Gravity Using Free Fall Essay As the title suggests, this experiment is to find the acceleration any object under free fall will undergo when travelling towards the earth. We presume in this experiment that we are unaware of the constant g and the basis of this experiment is to rediscover this value. Apparatus The principle behind the circuit is fairly simple. The ball is held through magnetism to the electromagnet; however when the magnetic field is no longer being created i.e. the switch is opened, the ball falls. When the switch is opened, the timer also starts as the switch is connected to one of its inputs. The ball strikes the metallic plate as it falls and breaks the contact between the metal plate and the rest of the circuit. The plate switch is also connected to the timer which then stops timing. In this way the time taken for the ball to fall a certain height is measured and hence its acceleration. The height fallen by the ball is measured by moving the plate switch up and down a wooden pole and measuring through use of a tape measure the distance between it and the bottom of the ball. All distances given in the data were from the top of the metallic plate to the bottom of the steel ball. The distance had to be standardised as the rate of acceleration depends upon the exact distance fallen in a certain amount of time. If we had not worked out two standard points that all our measurements were taken from we would not have been able to calculate the acceleration of the ball to an accurate degree. The acceleration acting upon the ball as it falls towards the earth is due to gravity. It is therefore prudent to show some understanding of the physics of the experiment before we actually look at the data itself. All following material is taken from Explaining Physics A-Level Edition by Stephen Pople. Gravity is a force of attraction between any two masses. This force is unusual as it is the only force discovered that has no repulsive effect unlike for example, magnetism which can attract and repel other masses. The Earth is surrounded by a gravitational field which exerts a force on any mass in it. In terms of this experiment the ball is attracted towards the earth as it falls. I read that experiments done in the past have shown that at a particular place all bodies falling freely under gravity in a vacuum or where air resistance is negligible have the same constant acceleration irrespective of their masses. This is why for this experiment the mass of the ball is irrelevant as long as it remains constant throughout the experiment. This is due to the fact that acceleration due to gravity is a constant for all objects irrespective of mass where air resistance is negligible. If we wish to find the acceleration due to gravity we only need to know the displacement of the ball and the time taken for it to fall that distance. This value is taken as 9.8m/s/s; that is to say that the velocity of any body travelling downwards will increase by 9.8m/s every second neglecting the effect of air resistance. As a result, my initial prediction is that the time taken for the ball to hit the plate will increase as the distance increases and as a result the acceleration will increase. This prediction is based upon the evidence found in the textbook mentioned above but also through initial examination of the data. For this experiment my partner and I decided to attach the metal plate switch at 20cm intervals from 20-200cm so a wider range of results could be calculated. We wished also to see if we could obtain the terminal velocity of an object in free fall i.e. the speed at which it will stop accelerating but the distance between the ball and the switch was not great enough. The final graph I will plot will be the displacement of the ball bearing over the time taken to open the switch squared. The two values should show positive correlation as if we arrange the equation from the textbook: S=ut + 1/2at s/t = u/t + 1/2 a Therefore: s/t = u/t + 1/2 a We know that intital velocity is Zero so: s/t = 1/2 a This rather conveniently allows us to find the acceleration due to gravity by simply doubling the gradient. g = 2( s/t) We see now how it is possible to obtain a value for g as I have data on both the displacement of the ball bearing and the time taken for it to fall that distance. An initial graph without reference to the data should be virtually straight line taking experimental error into account, perhaps looking roughly so: I have shown here the time squared for an object to fall over 50cm. I have taken g to be 10 which I have read is an approximate value. We see here that the time taken to fall increases proportionally to the displacement. I believe this will be true for the actual data also but need to plot this also. Displacement (cm) Time1(s) Time2(s) Time3(s) Average time(s) Average time Squared(s) 20 0.145 0.201 0.202 0.183 0.033 40 0.291 0.291 0.290 0.291 0.084 60 0.351 0.349 0.350 0.350 0.123 80 0.403 0.405 0.405 0.404 0.163 100 0.454 0.454 0.454 0.454 0.206 120 0.496 0.497 0.497 0.497 0.247 140 0.538 0.537 0.537 0.537 0.289 160 0.569 0.575 0.575 0.573 0.328 180 0.610 0.610 0.610 0.610 0.372 200 0.632 0.632 0.633 0.632 0.400 The highlighted result is the one I see as anomalous; I will explain later the major sources for error in the experiment. We see that the graph is almost a straight line showing that my initial prediction was correct in that the time squared had a positive correlation with the distance travelled. Let us presume now that we do not know that g is 9.8m/s/s and work it out based upon data on the graph. We know from my previous rearrangement of the equation in the textbook that the acceleration is the gradient doubled. To work out the gradient we must divide the change (delta) of they Y axis by the change of the X axis. When plotting the gradient it is wide to take it over the widest range possible to take all results into account. As a result I have decided to take the results from the extreme points of both the displacement and time. This is why I took the displacement over two metres instead of one to obtain a wider range of results. The data is taken from 20-200 cm. This is 180cm. However the modern convention is to measure length in metres which gives us a change of 1.8 m. The change along the X-axis is equal to 0.4-0.033 which comes to 0.367 If we divide 1.8 by 0.367 the result comes to 4.905 which we know is half the acceleration. If we double this value we find that (barring experimental error) the acceleration of the ball was 9.809 m/s/s which if we round up to 9.81m/s/s we find that it is very close to the conventional value for g. This does not leave us much room for experimental error as the variance between the value I obtained and the value stated in any textbook is 0.1m/s/s. However I believe there were sources of error for this experiment in general which I will now outline irrespective of the fact that they did not affect my own. The most significant factor when measuring g is that air resistance will act upon the ball. Explaining Physics tells us that we can neglect this factor as the ball itself is very dense. However, air must provide some resistance to the ball falling and could conceivably affect an experiment especially as air resistance isnt the same from one moment to the next for example, someone could open a window and cause an air current to act upon the ball. The only real remedy for this factor is to perform the experiment in a vacuum. A less likely factor to affect the experiment is the fact that the ball may display residual magnetic properties through repeatedly being attached to the electromagnet. The atoms within the ball could well have been ordered to make the ball itself be attracted to the electromagnet after the switch was thrown. Even if current was no longer flowing through the wires around the core, a weak magnetic field may have been apparent in the ball causing it to be attracted towards the iron core due to previous use. While iron is magnetically soft and would probably not have magnetic properties once the switch was opened the ball is made of steel which can retain magnetic properties. A solution for this problem would be to demagnetise the steel ball by either using a demagnetising tool or by simply heating it up by placing it in a naked flame for several seconds. One improvement I would have like to make to the experiment concerned the metal plate switch. I realised that it took a certain amount of time to actually break the contact between the plate itself and the rest of the circuit which could affect the overall time recorded by the Digital voltmeter. I believe it would be more efficient for a light sensor and a laser to replace the plate switch so the ball could fall uninterrupted and the time recorded would be more accurate. This is due to the fact that breaking a light beam can occur almost instantaneously while a metal plate is more difficult to move. If I had more time I would have liked to increase the distance over which the ball fell. This would not only provide a more accurate value for g but would also allow me to calculate the terminal velocity of a given mass. Ideally it would be interesting to see how the gravitational field of the earth varied in different locations, perhaps by obtaining data on the acceleration of the ball in various geographical locations. It would then be possible to see how g can vary due to the fact that the mass of the earth is not a constant all across the surface.