Friday, September 6, 2019
Arthur Miller creates dramatic tension Essay Example for Free
Arthur Miller creates dramatic tension Essay The Crucible is set in Salem, Massachusetts in 1692. It starts when Parris, the local- and rather unpopular- reverend in Salem discovers his daughter Betty, niece Abigail and many other young women from the village dancing and chanting in the forest, led by his slave Tituba. Tituba is from the West Indies, so has a set of traditions and beliefs which seem very alien to the Puritan citizens of Salem. When Betty and another girl involved in the dancing dont wake up the next day, and just lie in a trance-like state, there are rumours of witchcraft afoot. With the arrival of Hale, an open- minded but overly righteous witch- hunter, Abby and Tituba claim to have been possessed by the spirits of witches in Salem. Abby, along with some other girls, start accusing many people. Those who confess to devil worship are saved; those who do not are charged to be hanged. In court, the girls faint, and claim to have terrible pains and see horrific visions, all induced by the witch on trial. Their tactics are powerful, so those conducting the proceedings do not really consider they may be faking. Also, no one dares express sympathy for those charged, for fear of being accused themselves. As Abby and the other girls become court officials, people are wary of crossing them. Abby is a very overpowering character. She is seventeen and ravishingly beautiful. Whilst working as a maid for Elizabeth Proctor, she had an affair with her husband John. Abby still has feelings for him, and consequently despises his wife Goody Proctor. In the forest, she cast a spell to try and kill her. The affair has created a lot of tension between the married couple, and it seems John has never quite won back his wifes trust. When the couples maid, Mary Warren, reveals that Elizabeths name has been mentioned in court when witchcraft was being discussed, Goody Proctor is desperate for John to appeal to the court before she is formally charged. This is because Abby revealed to Proctor there was no witchcraft involved in Bettys trance-like state, claiming, She just took fright, is all. Proctor is a highly passionate man, who can be hot-headed. He has to live with the terrible guilt of his affair, which he greatly regrets. He still has feelings for Abby, but he is too ashamed of his weakness in character to do anything about them, seeing what the initial affair did to his relationship with his wife. He still loves Elizabeth, but succumbed to the beautiful girl who had been a temptation to him whilst his wife was ill. When Hale arrives at their house to question the couple, Proctor questions Hale to see whether he has considered the fact the girls might be lying, and reveals what Abby told him. This appears to send Hale into turmoil. Before Proctor has a chance to make an official complaint, Cheever arrives with an arrest warrant for Elizabeth. She is one of sixteen arrested, along with other respected women like the godly Rebecca Nurse. Giles Coreys wife, Martha, is arrested because he informed Hale he found it difficult to pray when she was reading. Proctors servant Mary knows Abby is making false accusations, so he forces her to tell the court officials of this the next day. Act Three takes place in a courtroom. It is the site where many have been condemned to die and many horrific accusations have been made, so there is already an ominous atmosphere. It is then that we are introduced to Danforth, a court judge with a very rigid view. Proctor, Corey and Frances Nurse, husband of the condemned Rebecca, are all anxious to prove their wives innocence. Mary Warren has come to admit she was faking, but she is petrified about speaking out against Abby and the possible consequences. When it is revealed Elizabeth is pregnant, and therefore will not be hanged for around a year at least, Proctor is given the option of accepting this and doing no more. However, he feels he has to save the others who have been charged as well. To Danforth, this seems to suggest Proctor is just trying to undermine the court rather than just save his wife, as he initially claimed. To us, it is evidence of Proctors bravery and conscience. Hale, who has in the past acted quite righteously and tried to root out witches, finally sees that Abby may be lying. He decides to support Proctor, which might put pressure on Danforth to accept that some of the condemnations were untrue. If Danforth admits this, however, he will be publicly disgraced, as he will be seen as responsible for the deaths of many innocent citizens, based on juvenile, callous accusation. The climax of the scene is brought about by Abbys quick- thinking. She is relieved when Elizabeth lies about the affair, and sees the moment as her chance to turn the situation to her favour. She, and subsequently the other girls, claim to see a yellow bird, possessed by the spirit of Mary Warren. Abby does this to pressurise Mary into lying again, to avoid being condemned as a witch. The scene becomes highly charged as Proctor and the others struggle to convince Danforth the girls are faking, Abby becomes more hysterical and Mary is in a dilemma about whether she should listen to her conscience and risk being condemned or lie to save herself. There is conflict between Mary Warren and Abby. Before all the witchcraft incidents, Abby was very dominant in her relationship with Mary, possibly resenting the fact Mary took her job when Elizabeth discovered the relationship between Abby and John. As Mary is used to be treated like an inferior, she is scared to speak out against Abby. Abby seems to be the more intelligent and powerful of the two, and Mary is afraid that if her claim against Abby is deemed a lie, then Abby will find a way to get back at her. Tension is created as Mary is under pressure from Proctor to admit she and the other girls lied and contributed to the execution of innocent villagers. In contrast, Abby is desperate for Mary to keep lying to avoid being exposed. As the audience, we are tense to see if Mary will overcome or succumb to the peer pressure. When Abby claims to see a yellow bird, this forces Mary into a decision to support her rather than Proctor. She is close to being tried as a witch and has to find a way to shift the blame, which is basically the foundation of all the trials. There is also a sense that her will is simply overpowered by Abbys will. The characters in this scene are all very important, and all contribute to the tense atmosphere. There is lots of conflict between them, causing a feeling of suppressed emotions that are being forced out. In particular, there is conflict between Proctor and Abby, and this is complicated by the fact that we know that Proctor is both physically attracted to and yet hates Abby. When Proctor admits to the affair he has so strenuously kept secret before, it shows the depth of the battle between him and Abby. Miller uses dramatic irony in this scene. We, as the audience, know that Proctor, Corey and Nurse are telling the truth and so we see through Abbys act and want the truth to prevail. However, characters such as Hale and Danforth have no evidence either way, but are perhaps pre-disposed to believe Abby as they have executed people on her word (and would lose face if it became known she was lying). Miller plays with us, and builds up the tension, by alternately giving us cause to hope that the truth will be revealed and to fear that it will not. For example, there are times when we are led to hope that Danforth will give credit to what he is told by Mary, as, contrary to what Parris advises, he does hear her out, and, in response to Parris immediate denunciation, states, it strike hard upon me that she will dare to come here with such a tale. Similarly, there are times when Hales response gives hope. He admits to always having had doubts about Abby. However, we lose hope when Danforth orders that those who signed Giles petitions must all be arrested, when Abby convincingly protests her innocence, and when the girls claim to be affected by witchcraft. Proctors dramatic revelation of his adultery with Abby looks at one point as if it may sway Danforth, but our hopes are dashed when Elizabeth denies he is a lecher, believing she is doing so in his best interests. When Mary is won over by Abby, we see that Abby has decisively triumphed. After the drama of the girls hysteria, we are left feeling deflated. To conclude, Miller uses a variety of tactics to create tension. He uses theatre techniques like dramatic irony to do so. The conflicting characters are also a major contributor. The scene is a battle between good and evil, and the constantly changing winning side makes us tense. There are moments where everything looks hopeful but then the evidence is turned around to go against what it proves.
Thursday, September 5, 2019
Advantages And Disadvantages Of Using A Pointer Computer Science Essay
Advantages And Disadvantages Of Using A Pointer Computer Science Essay Write advantages and disadvantages of using pointer. How the concept of pointers is useful in the implementation of data structures? A pointer allows a function or a program to access a variable outside the preview function or a program ,using pointer program can access any memory location in the computers memory. 2)since using return statement a function can only pass back a single value to the calling function, pointers allows a function to pass back more than one value by writing them into memory locations that are accessible to calling function. 3)Use of pointer increases makes the program execution faster 4)using pointers, arrays and structures can be handled in more efficient way. 5) without pointers it will be impossible to create complex data structures such as linked list , trees, and graphs. Disadvantages of pointers:- 1)we can access the restricted memory area. 2) Pointers require one additional dereference, meaning that the final code must read the variables pointer from memory, then read the variable from the pointed-to memory. This is slower than reading the value directly from memory. 3). If sufficient memory is not available during runtime for the storage of pointers, the program may crash When setting upà data ststructuresà likeà lists,à queuesà and trees, it is necessary to have pointers to help manage how the structure is implemented and controlled.Pointers and Structures can be used to build data structures that expand and shrink during execution examples stack queues,trees etc.While pointer has been used to store the address of a variable,it more properly applies to data structures whose interface explicitly allows the pointer to be manipulated as a memory address.Because pointers allow largely unprotected access to memory addresses. 2). Elaborate the concept of Fixed block storage allocation and Buddy system in dynamic memory management. Sol. Fixed block storage allocation:- This is the simplest storage maintenance method. Here each block is of the same size. The size is determined by the system manager. Here the memory manager maintain a pointer AVAIL which points a list of non contiguous memory blocks. A user program communicate with the memory manager by means of two function GETNODE(NODE) and RETURNNODE(PTR).The procedure GETNODE is to get a memory block to store data of type NODE. This procedure when invoked by a program returns a pointer to first block in the pool of restorage. The AVAIL then points to the next block.If avail=NULL it indicates no more memory is available for allocation. Similarly whenever a memory block is no more required it can be returned to the memory bank through a procedure RETURN NODE(). Buddy system:- It is the another storage management system which restricts the size of blocks to some fixed set of sizes. These blocks of restricted sizes are maintained in a linked list. Whenever a request for a block of size N comes, the number M the smallest of the fixed sizes but equal to or largest than N, is determined and a block of size M is allocated if available on the list. If not available then a larger block if available is split into two sub-blocks known a s buddies. Each of them are also of fixed sizes and the process is repeated until a block of size M is produced. for example , if k=1 and Fo=8, then the block sizes are 8,16,32,64,128,à ¢Ã¢â ¬Ã ¦. THAT is ,the block sizes are successive powers of 2; and the buddy system based on such fixed sizes is called binary buddy system. 3.)Differentiate between static memory allocation and dynamic memory allocation. Illustrate various memory management functions Sol. In case of static storage management scheme , the net amount of memory required for various data for a program is allocated before the starting of the execution of a program once memory is allocated, it neither can be extended nor can be returned to the memory bank for the use of other programs at the same time. On the other hand dynamic storage management schemes allows user to allocate and deallocate as per necessity during the execution of programs. The static storage allocation is easy to implement and efficient from execution point of view .Here all variables those are required for a program is allocated during compile time this is why static storage allocation is a compile time phenomena. In this each subprogram/subroutine of a program is compiled separately and the space required for them is reserved till the execution of the program. On the other hand dynamic memory allocation , space for memory variables is allocated dynamically that is as per the current demand during the execution. When a subprogram is invoked space for it is allocated and space is returned when the subprogram completes its execution. Thus , the space required to run a program is not fixed as in static allocation, rather it varies as program execute. Various memory management functions:- 1)malloc():-The malloc function dynamically allocates memory from heap.The prototype for malloc() function is Void *malloc(size_t size); 2)calloc():- The calloc() function dynamically allocates memory automatically initializes the memory to zeroes. The prototype for calloc() function is Void *calloc(size_t nitems , size_t size); It takes two arguments . The first argument is the number of elements and the second argument is the size of each element. 3) realloc():- The realloc() function changes the size of previously dynamically allocated memory with malloc(), calloc(), realloc() functions.The prototype for realloc() function is Void *realloc(void *block, size_t size); It takes two argument . the first argument is the pointer to the original object and the second argument is the new size of the object. 4.)Write different ways to manage records in memory Sol.) Since records may contain non homogeneous data, the elements of a record cannot be stored in an array . Some programming languages such as PASCAL and COBOL do have record structures built into the language. Suppose a programming language does not have available the hierarchical structures that are available in PASCAL and COBOL . Assuming the record contains non homogeneous data , the record may have to be stored in individual variables , one for each of its elementary data items. On the other hand one wants to store an entire file of records, such a file may be stored in memory as a collection of arrays that is, where elements in different arrays with the same subscript belonging to the same record. Part-B 1.)Illustrate the use of array of pointers and pointers to an array Sol.) An array of pointers is that for eg if we have array of 10 int pointers ie int *a[10] then each element that which is stored in array are pointed by pointers. here we will have ten pointers. In pointer to an array for eg int(*a)[10] here all the elements that is all the ten elements are pointed by a single pointer. int *a[10]:-array of pointers. consider one array int b[10]={1,2,3,4,5,6,7,8,9,0};so elements will be stored in addresses .now this address are stored in array of pointers.thats int *a[10]={b+0,b+1,b+2,b+3,b+4,b+5,b+6,b+7,b+8,b+9};means a+0=address of value 1 is the first element of int *a[](first element of int b[10])and so on. while int(*a)[10]:-here a is an pointer to an array containing 10 integers. suppose int b[10]; then a=b[10]; this will give element of int b[10] array thats b[0];and so on but in case of two dimensional array first we have to allocate base address of respective one dimensional array and base address of element of one dimensional array then only we can use pointer to an array. Give example to show the use of far pointer and dangling pointer problems Sol.) A far pointer uses both the segment and the offset address to point to a location in memory à The far pointer can point to any location in memory. . Far pointers have a size of 4 bytes . They store both the segment and the offset of the address the pointer is referencing. A far pointer has an address range of 0 1M bytes. A far pointer can be incremented and or decremented Only the offset of the pointer is actually incremented or decremented. The segment is never incremented by the arithmetic operators.On the other hand Dangling pointers are the pointers that do not point tao a valid object of the appropriate type. These pointers arise when an object is deleted or deallocated,without modifting the value of the pointer so that pointer stll points to the memory location of deallocated memory .As the system may reallocate the previously freed memory to another process ,if the original program then derefrences the dangling pointer,results in bugs or errors as the memory may contain com pletely different data.à Consider the following example { char *cp = NULL; { char c; cp = &c; } à /* cp is now a dangling pointer */ } Solution to dangling pointer: char *cp = malloc ( A_CONST ); free ( cp ); /* cp now becomes a dangling pointer */ cp = NULL; /* cp is no longer dangling */ Differentiate between linked list and arrays in terms of representations, traversal and searching. Sol.) 1)In case of array traversing is used visiting all elements in an array while to traverse a single linked list we mean to visit every node in the list starting from first node to last node. 2).Searching operation in an array is applied to search an element interest in an array.It is a process of finding the location of given element in an array.The search is said to be successful if the given element is found.there are two types of search operation : Linear search Binary search If the array elements are in random order then one have to use linear search technique and if the array elements are sorted then it is preferable to choose binary search technique.While in case of linked list only linear searching is possible.This is one of the limitation of linked lists as there is no way to find the location of the middle element of the list. can we perform binary search in linked list ,if no then illustrate the reason. Sol.) No, we cannot perform binary search in linked list because there is no way Of indexing the middle element in the list. With a sorted linear array we can apply a binary search whose running time is proportional to log2n. On the other hand a binary search algorithm cannot be applied to a sorted linked list, since there is no way of indexing the middle element in the list. This property is one of the main drawbacks in using a linked list as a data structure.
Wednesday, September 4, 2019
Factors Affecting The Successful Implementation Of Balanced Scorecard Accounting Essay
Factors Affecting The Successful Implementation Of Balanced Scorecard Accounting Essay Aim- The objective of this paper is to exhibit the factors affecting the sucessful implementation of a Balance scorecard. Introduction- A brief idea about balanced scorecard,definition operation. Literature Review and and Analytical framework- Detailed Analytical review of the researchers , on the factors affecting sucessful implementation of BSC. Conclusion A summary of the above topic and recommendations . BSC INTRODUCTION Balance scorecard is a strategic planning and management system that is used extensively in business and industry, government, and non profit organization worldwide to align business activities to the vision and strategy of the organization, improve internal and external communications, and monitor organization performance against strategic goals. The first balance scorecard was invented by Art Schneiderman(an independent consultant on the management of processes) in 1987 at analog devices, a mid sized semi conductor company Later on it was restructured by Robert Kaplan and David P. Norton in the use of balance scorecard in their 1992 article on balanaced scorecard.(The balance scorcard) The balance scorecard was made for the improvement in organizational performance and competitiveness. (Arthur M schneiderman) Traditional performance measures are inadequate to measure performance and guide organizations in rapidly changing, complex economic environment. Organizations need to link performance measurement to strategy, and must measure performance in ways that both encourage positive future results and replicate past performance. Robert S. Kaplan and David P. Norton, among the proponents of these strategic concepts, give a better definition: Balanced scorecard provides managers with the instrumentation they need to navigate to future competitive success. Today, organizations are competing in complex environments so that an accurate understanding of their goals and the methods for attaining those goals is vital. Balance scorecard translates an organizations mission and strategy into a comprehensive set of performance measures that provides the framework for a strategic measurement and management system. It retains an emphasis on achieving financial objective but also includes the performance drivers of these financial objectives, (The Balanced Score Card: Translating Strategy into Action, pp. 1-3) The introduction undertaken discusses first of all how the BSC evaluated with the course of time the need for the same. Then in the literature review a thorough discussion and viewpoint of the authors of articles are taken into consideration followed by a criticism. In the conclusion a proper summary and what the research has produced will be discussed highlighting the importance, need and factors affecting the successful implementation of BSC would be discussed. In the last eleven years, balance scorecard has play an vital role for implementing strategy and monitoring performance. Creating a strategy focused organization (the phrase coined by the founders of the Balanced Scorecard methodology) is a significant, challenging culture change for many organizations. Success in achieving this change requires: Regular executive support and involvement. Education, communication, and visibility of the strategy and measurements of its effectiveness throughout the organization. To review the stragy so that constant feedback is obtained. Tools to enable non-technical users to understand the key drivers of the measures. Translation of the strategy to operational terms so that alignment to strategy and implementation of it occur at all levels of an organization. Process of BSC We have to view the organization from four perspectives in order to relate strategy to achieve organizational goals : Financial perspective Organisations objective will be to earn higher profits by applying all the resources . Kaplan and Norton regards traditional need for financial data. Customer perspective In any business, importance on customer focus is relevant for organizational growth if the customers are not satisfied the revenues will be lowered and as a result return on investment will decrese. Internal business perspective The internal process refers to quality production , timely delivery wich will retain the existing customers and also will improve to find new customers Learning and growth perspective Here employee is trained and motivated ,and improved learning skills are provided To improve the work process, which will improve the quality of the product and alsoTimely delivery. The four perspectives is shown below in form of chart : Literature Review: Factors affecting successful implementation of Balanced Scorecard: Strategy Implementation and control: Here author has stressed the importance about formulation and implementation . Once the strategy has been devised, major problem Is to implement the BSC Scorecard. The most frequent problem include underestimating the time needed for implementation and uncontrollable factors in the external environment.( Helen Atkinson pp.1443,1444) Another author (Ulf johanson et. Al) also argued about idea of BSC implementation.The concept does not allow for an open invitation to participate in learning and development process.Trying to force the objectives on another is risky. Senior management style, is another factor author has bought to the notice . Here he argues that without proper senior management support and delegation it is difficult to properly implement balanced scorecard. Strategic control systems : Strategic control system provides the short term targets that deliver long term goals. Strategic control are required to provide a balance between long term organizational goals and short term operational demands. (Helen Atkinson pp.1446). Thus he sees that there is a need to establish co-ordinated strategic and management control objectives. Furthere more, he points that issues relating to employee and suppliers are not co-related to performance management. Translating vision into strategy,is difficult process as its time consuming focuses on much wider change in the organization.(Helen Atkinson pp.1449) Organizations that have successfully implemented the Balanced Scorecard have achieved remarkable transformations in their financial performance, in many cases vaulting to the top ranks in their industry groups. Many aspects of Balanced Scorecard development and deployment depend on effective use of technology to be successful. Numerous software packages have been developed to help automate the Balanced Scorecard, but it is very difficult to deliver the needed capabilities in a single software package. Therefore, the Microsoft Balanced Scorecard Framework has been developed to allow organizations to: Develop and deploy a scorecard economically using an existing infrastructure. Manage and display the data and knowledge pertinent to Balanced Scorecards. Facilitate analysis of measures so that prompt corrective action can take place. The framework provides a comprehensive, flexible, cost-effective way to deploy the Balanced Scorecard and deliver superior returns on people, processes, customers, and technologies. Management involvement and endorsement- Without the full personal support and endorsement of the executive team the transformation would be impossible. Communication of Balanced scorecard needs to be focused as ,it delivers top management ideas, views on strategy to lower level( Anthony A. Atkinson et al.) Floor level employees are the ones who will achieve the targets, so they should be aware of the objectives and targets provided to them.(Meena Chavan) Scorecard is prepared as one time event .In most cases, Top executive team spends much more time in designing and launching the BSC, as a result there lacks some missing measures at the time of start of project and launch time. Here BSC implementation fails which lacks in considering the review of BSC. (Anthony A. Atkinson et al.) Critical Analysis of the Literature: Referring to Helen Atkinson on strategy implementation and control it is backed up in the sense that without proper implementation of the project, objectives will not drive further. Once the vision is set clear , proper strategy should be chalked out so that Objectives will be achieved without any hindrance. As Atkinson said full involvement of top management is essential in order to achieve organizational goals with the help of balanced scorecard by adopting four perspectives. Morever, internal process plays a vital role in increasing return on investments if, it is properly backed up by employee training and growth. Employees should be provided adequate training to do the job. Many, consultants criticizes that it does not provide a final score or view with proper recommendations or suggestions. It is a simply list of metrics. For Example employees cannot view their score with respective to their objectives. Most of the organisations follows the four perspectives and doesnt allow scope for external perspectives. They should take into consideration external factors according to the needs of the situation and change. Various researchers and authors have critically bought most important issues that will affect the implementation of BSC. We should take their consideration as a review so that BSC will run smoothly in achieving organisational objective In balance between Goals and accountability- I agree with meena chavan, in the sense that all the people should take responsibility of the goals they are given. Unless they take accountability and responsibility goals will not be achieved There are certainly all elements which forms the basis for a good scorecard , however it is important to add some extra detail to the perceptions. The quick consideration of the scorecard should lead to a very specific understanding of the strategy of the organisation . Furthermore, it should not be over financial. Financials are usually,though not always,the measure of success or failure. The balanced scorecard is treated as a consultancy project. It is implemented as a consultancy project rather than management project. By treating it as a consultancy project , time is spent and also cost is increased. In addition, the senior management team will be overpassed , to whom their will be no idea about strategies, objectives of the organization. BSC viewed as short term project No organisation likes to deviate from the objectives and run the same for short period. They insists that whatever strategy they developed should work for long term. This is baseless factors. BSC should be developed as an instrument for change.To grasp the importance of intangible resources in the value creation process and mobilize the attention and action of middle management , BSC should be developed with its emphasis on management control and non-financial indicators. Conclusion: Balanced scorecard was designed to measure organizations performance against strategic goals. It use has been made by most of the fortune 500 companies. For designing of BSC four perspectives are important . Various researches have indicated that BSC should also include others factors in the perspectives such as environment, Job security. Focusing on one measurement of business success can lead to hazardous. In the Literature and books that I have reviewed, while designing the major factors that are responsible for implementation are , formulating strategy,setting up of proper perspectives, formulation of team, communication of the Strategy and objectives and poor score card designs. Furtheremore, balanced scorecard approach requires some major changes in culture within the organization. The balanced scorecard requires understanding commitment and support from the top executive level. Different organizations have different needs, markets, products and services For which balanced scorecard will differ. It has also to consider the various perspectives. Properly designed Balanced scorecard, will address the key problems with strategy implementation, the performance of the organization ,the communication, the role of middle management and existing control systems. Balanced scorecards have been implemented in corporations, government organizations ,non profit organizations and schools. In conclusion , balanced scorecard is a management system , which has overcome the traditional measurement system enables the organization to illuminate their vision and strategy and interpret into action..It provides feedback internal business external business process in order to continuously improve strategic performance and results.
Tuesday, September 3, 2019
Congress and Human Cloning :: Argumentative Persuasive Topics
Congress and Human Cloning This year Congress may face several decisions that could help forge, in the words of Pope John Paul II, "the path to a truly humane future, in which man remains the master, not the product, of his technology" (Address to President Bush at Castel Gandolfo, July 23). The first and most immediately urgent of these decisions regards human cloning. The Weldon/Stupak Human Cloning Prohibition Act, approved 18-to-11 by the House Judiciary Committee, is poised for a vote by the full House. It should be approved without delay. Some researchers have already announced that they are trying to produce a live-born child by cloning -- despite an overwhelming scientific consensus that about 99% of new humans created by this method would die before birth, and the rare survivor would suffer from massive medical problems. The Weldon/Stupak bill addresses this looming tragedy at its source, by banning the use of somatic cell nuclear transfer to create a new organism of the human species. This bill is carefully crafted to address only this specific problem. It has no effect on in vitro fertilization or any other reproductive technology in current use, but deals only with cases of asexual reproduction which do not involve fertilization of egg by sperm. The bill explicitly exempts any use of cloning technology to produce animals, plants, DNA, tissues, or cells other than human embryos (including stem cells which are not themselves human embryos). Proponents of cloning nonetheless argue that this bill somehow interferes with a procedure that is essential to stem cell research. Until now, of course, these same groups were insisting that embryonic stem cell research could be fully pursued using only "excess" embryos created by in vitro fertilization that "will be discarded anyway." Now they say that mass production and destruction of cloned embryos to provide genetically matched stem cells will be needed to take stem cell research from the laboratory into the clinic. While the cloning debate is now forcing such groups to admit that their earlier statements may not be true, their new claim is also open to serious question. The National Institutes of Health's new report on the science of stem cells cites cloning as one way to prevent rejection of embryonic stem cells as foreign tissue, but cites other approaches as well -- and expresses great uncertainty as to whether these cells will provoke a significant immune reaction even without such manipulations (NIH, Stem Cells: Scientific Progress and Future Research Directions, June 2001, pp. Congress and Human Cloning :: Argumentative Persuasive Topics Congress and Human Cloning This year Congress may face several decisions that could help forge, in the words of Pope John Paul II, "the path to a truly humane future, in which man remains the master, not the product, of his technology" (Address to President Bush at Castel Gandolfo, July 23). The first and most immediately urgent of these decisions regards human cloning. The Weldon/Stupak Human Cloning Prohibition Act, approved 18-to-11 by the House Judiciary Committee, is poised for a vote by the full House. It should be approved without delay. Some researchers have already announced that they are trying to produce a live-born child by cloning -- despite an overwhelming scientific consensus that about 99% of new humans created by this method would die before birth, and the rare survivor would suffer from massive medical problems. The Weldon/Stupak bill addresses this looming tragedy at its source, by banning the use of somatic cell nuclear transfer to create a new organism of the human species. This bill is carefully crafted to address only this specific problem. It has no effect on in vitro fertilization or any other reproductive technology in current use, but deals only with cases of asexual reproduction which do not involve fertilization of egg by sperm. The bill explicitly exempts any use of cloning technology to produce animals, plants, DNA, tissues, or cells other than human embryos (including stem cells which are not themselves human embryos). Proponents of cloning nonetheless argue that this bill somehow interferes with a procedure that is essential to stem cell research. Until now, of course, these same groups were insisting that embryonic stem cell research could be fully pursued using only "excess" embryos created by in vitro fertilization that "will be discarded anyway." Now they say that mass production and destruction of cloned embryos to provide genetically matched stem cells will be needed to take stem cell research from the laboratory into the clinic. While the cloning debate is now forcing such groups to admit that their earlier statements may not be true, their new claim is also open to serious question. The National Institutes of Health's new report on the science of stem cells cites cloning as one way to prevent rejection of embryonic stem cells as foreign tissue, but cites other approaches as well -- and expresses great uncertainty as to whether these cells will provoke a significant immune reaction even without such manipulations (NIH, Stem Cells: Scientific Progress and Future Research Directions, June 2001, pp.
Free Awakening Essays: Romanticism :: Chopin Awakening Essays
Romanticism in The Awakening Even though it was written in the Victorian era, Kate Chopin's The Awakening has several romantic qualities, especially with the main character, as she struggles between society's obligations and her own desires. Chopin writes about a woman who continues to reject the society around her, a notion too radical for Chopin's peers. Edna Pontellier has the traditional role of both wife and mother, but deep down she wants something more, difficult to do in the restricted Victorian society. The typical Victorian woman maintained her sphere which deemed "women's personal lives center around home, husband, and children." (Victorian Women, p. 118). Women were supposed to happily accept this position in the home, and be satisfied. It never satisfied Edna, who always seemed out of place when with other women. She was a wife and a mother, but not the typical Victorian wife and mother. With regards to her children, "Their absence was sort of relief...It seemed to free her of a responsibility which she blindly assumed and for which Fate had not fitted her" (p. 18). Already she is revealing ideas uncommon in the Victorian era. She tries to maintain her roles, but it is very difficult for her. As the story progresses, Edna focuses on her desires rather than what her husband wants. She refuses to participate in the traditional role given to her as a woman. The romantic notion of individualism comes out as Edna decides to go out on a Tuesday afternoon rather than receive visitors. When her husband finds out, he is extremely upset. "'I should think that you'd understand by this time that people don't do such things; we've got to observe les convenances if we ever expect to get on and keep up with the procession'" (p. 51). Edna disregards her husbands appeal to conform and continues to do what she wants. Victorian society was not ready for a novel whose main character disregards the norm for her own happiness. The rejection Chopin received was mainly due to Edna's rejection of the traditions and the adultery aspect of the novel. Edna, caught up in a loveless marriage, resorts to adultery to keep herself satisfied. Edna follows her heart rather than reason when she pursues Robert Lebrun. In revealing her love for Robert, her romantic passion is expressed. "'I love you,' she whispered, 'only you; no one but you.
Monday, September 2, 2019
Physics Cantilever Lab
Independent Assessment Physics Lab (SL): Cantilever Flexion Cherno Okafor Mr. Ebrahimi SPH4U7 October 21st, 2012 Introduction Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers. Hypothesis: If one increases the length of a cantilever, one would expect there to be an increase in deflection/flexion of the cantilever.Similarly, if one increases the mass of the load, one would expect there to be an increase in the deflexion/flexion of the cantilever. In addition, I predict that proportionality will also occur between the independent and dependent variables. If the length of the cantilever doubles, it is expected that the flexion/deflexion would also double. Similarly, if the mass of the load doubles, the deflexion/flexion would also double. Variables: In this investigatio n, I chose two variables: the length of the cantilever and the mass of the load.First, I chose to measure the effect of the length of the cantilever on its deflection when loaded with a constant mass because I knew from prior experience that there was some relationship between the two variables. * Independent Variable: The length of the cantilever in metres, which will be varied by changing the length of the yardstick functioning as a cantilever that extends over the edge of a table. This will be measured indirectly by measuring the length of the portion of the yardstick not in use and subtracting that from the entire length of the yardstick.The other independent variable is the mass loaded onto the cantilever, which will be controlled by initially using the same mass for each trial, then for the second part, changing the mass of the load by increasing and decreasing the mass, and subsequently investigating what the relationship is between load mass and cantilever length. The initia l location of the mass in relation to the entire yardstick will be controlled by placing the mass at the same end of the yardstick for each trial and marking the flexion/deflexion. Dependent Variable: The deflection/flexion of the cantilever in metres. This will be measured indirectly by measuring the initial height of the bottom of the cantilever with no mass added (which is equal to the height of the table) and the new height of the bottom of the cantilever after each trial, which will be measured with mass added. Hence, the difference between these heights is equal to the deflection/flexion of the cantilever. The material and other physical properties of the cantilever will be controlled by using the same yardstick as a cantilever for each trial.Data Collection and Processing My experiment is divided into two parts; experiment A (involving the relationship between flexion and the mass of the load) and experiment B (involving the relationship between the flexion and the length of the cantilever). Below are two tables in which I have recorded the data which I obtained during the experiment. The first table reflects the Relationship between the deflection/flexion of the cantilever and the mass of the load and the second table reflects the relationship between the flexion of the cantilever and the length of the cantilever. i) Relationship between the deflection/flexion of the cantilever and the load mass (5 trials) Table #1-Experiment A Factor/Variable| Trial 1| Trial 2| Trial 3| Trial 4| Trial 5| Trial 6| Trial 7| Trial 8| Trial 9| Trial 10| Trial 11| Load (g)| 0| 100| 200| 300| 400| 500| 600| 700| 800| 900| 1000| Without Load (cm)| 96| 96| 96| 96| 96| 96| 96| 96| 96| 96| 96| With Load (cm)| 96| 92. 7| 90| 87. 6| 85| 82. 2| 79. 5| 77| 74. 6| 71. 5| 69. 5| Flexion (cm)| 0| 3. 3| 6| 8. 4| 11| 13. 8| 16. 5| 19| 21. 4| 24. 5| 26. 5| Now, I will graph this relation:We can see that there is a linear relationship between flexion and the load mass. (ii) Relationship b etween the deflection/flexion and the length of the cantilever (5 trials) Table #2- Experiment B Factor/Variable| Trial 1| Trial 2| Trial 3| Trial 4| Trial 5| Trial 6| Trial 7| Trial 8| Trial 9| Trial 10| Length of cantilever (cm)| 90| 80| 70| 60| 50| 40| 30| 20| 10| 0| Height without Load (cm)| 95. 5| 95. 5| 95. 5| 95. 5| 95. 5| 95. 5| 95. 5| 95. 5| 95. 5| 95. 5| Height with Load (cm)| 69. 5| 76. 5| 82. 5| 87. 4| 90. 9| 93. 2| 94. 5| 95. 5| 95. | 95. 5| Flexion (cm)| 26| 19| 13| 8. 1| 4. 6| 2. 3| 1| 0| 0| 0| Now I will graph this relation: We can see that there is an exponential/power relationship (curved) between the flexion and the cantilever length. Analyzing Evidence Patterns: 1) In experiment A, the relationship between the flexion and the load is proportional as predicted. As the load increases, the flexion increases as well. As the load doubles from 200g to 400g, the deflection almost doubles too. 2) In experiment B, the deflection increases as the length of the cantilever i ncreases.But this time, it reaches a point (20cm, 10cm, 0cm) where the deflection stays the same even if the cantilever length changes. Conclusion and Evaluation Conclusion: The experimental results agree with my prediction/hypothesis because I predicted that in experiment A, the deflection is proportional to the mass of the load. In experiment B, I predicted that flexion/deflexion would increase as the length of the cantilever increases. As the load and the length of the cantilever increases, then the deflection/flexion increases.This happens because of forces acting on the particles in the cantilever. At the top of the cantilever, particles are pulled apart proportionately to the load because they are in tension. The forces between particles increase. However, the attractive force is bigger than the repelling force in the particles so therefore, the particles are held together. The particles at the bottom will be pushed together proportionately to the load because they are in comp ression. The forces get larger and the repelling force which is bigger pushes the particles away from each other.So they are not disordered. We can also say that they obey Hookeââ¬â¢s law. Evaluation: From the results that I got after performing the experiment, I can say that the experiment worked quite well. In the analyzing evidence section, I can draw the conclusion that the first table reflects a linear straight line graph and the second table reflects a curved graph. On this basis, I can say that the experiment worked out pretty well. I think the data I obtained was accurate since I did indeed try to graph these relationships.A possible improvement to this experiment should be repeating the experiment twice or more if possible. Then I would get the average results in a table and in this way, my results would be even more accurate. General Conclusion: The general conclusion we can draw from this experiment is that as the mass that we put on the cantilever increases, the defle ction increases too until the elastic point is reached where the cantilever cannot hold any more masses so it breaks. Also, we can see from the second graph that the larger the length of the cantilever, the large the flexion is.
Sunday, September 1, 2019
Differences between indentured servants and slaves Essay
During the early years of the 1600ââ¬â¢s many Europeans and Africans moved over from England and became indentured servants. Indentured servants were employed by wealthy people and were used mainly for cheap labor. Some types of labor consisted of working in the fields and helping farmers. Around the 1680ââ¬â¢s is when the employment of indentured servants slowly dropped. The reason for the drop was due to the rise of slavery. This was masterminded by European and euro-American colonist who created a slave based community. There were even laws that made slavery race dependent. There were some differences between indentured servants and slaves. Indentured servants were used for cheap labor. They communicated easily with their masters due to having the same religious views and cultures. Indentured servants were under a contract that banded them to their master for 7 years. Once the contract expired after 7 years they were freed. They were then allowed to acquire their own land. Slaves were also used for labor but there were laws that were put in place that treated them differently. One law they had was the ââ¬Å"Anti-amalgamation law, which outlawed interracial sex and marriage, rendering any relationship between a male colonist and a female slave illegal, and any relationship between an African American male slave and a female colonist intolerableâ⬠. (Schultz, 2014). If an African American mother was to have a child, that child was born into slavery and thus made the child a slave as well, once he or she was old enough. The slaves did not have a contract that expired after 7 years. Slaves were permanently owned by their masters. This meant that their masters could punish them any way he saw fit for anything they did wrong. There were also no laws that oversaw the killings of someoneââ¬â¢s own slave. The reason I chose this topic for my journal entry is because I did not know anything about indentur ed servants. I did not know such practice existed. I knew about slavery but did not have much knowledge about the subject until I read Chapter 3. References Schultz, K.M. (2014). U.S. History through 1877 (3rd ed.). Retrieved from The University of Phoenix eBook Collection database.
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