Tuesday, August 6, 2019
Decersion Escolar En Mexico
Decersion Escolar En Mexico Los problemasescolares son algunas dificultades que sufren los estudiantes y esto conlleva la desercià ³n, en un estudio realizado llegà ³ a la conclusià ³n que la desercià ³n escolar es consecuencia de la implementacià ³n de una polà tica educativa que no està ¡ acorde a las necesidades del los alumnos. Los problemas mà ¡s frecuentes que se presentan en las aulas son, problemas de conducta, fracaso escolar, la falta de motivacià ³nen la familia, entre otros factores mà ¡s, (Monografà as, 2007). La desercià ³n es un fenà ³meno que se da cuando una persona en edad escolar abandona sus estudios de manera definitiva para dedicarse a otra actividad. Ãâ°ste fenà ³meno se presenta en todos los niveles educativos, sus causas son multifactoriales, esto lo hace que sea mà ¡s difà cil de suprimir. Podemos clasificar sus causas en dos vertientes: Causas externas a la escuela y causas internas a la escuela. Las causas externas a la escuela tienen que ver con acciones que se dan fuera del entorno escolar. La pobreza, sin duda alguna es una de las principales, y mà ¡s difà ciles de aniquilar, à ©sta sirve de base para detonar otras causas. Estudiar conlleva un gasto, de eso no queda duda, cada inicio de curso los padres tienen que realizar un gran esfuerzo para poder suplir la lista de à ºtiles que la escuela exige, debemos ser consientes que para muchas familias de Mà ©xico sustituir esta lista serà a gastar el salario de una semana o mà ¡s, es por ello que la familia muchas veces prefiere que no asistan a clases para que de esta manera aporten con su trabajo algo de dinero para el sustento del hogar. La migracià ³n es otra de las causas externas mà ¡s comunes y en la mayorà a de los casos està ¡ muy ligada a la pobreza, los padres van de un lugar a otro en busca de trabajo, llevan a sus hijos consigo y es difà cil volverlos a incorporar a otra escuela nuevamente, lo cual propicia de manera inevitable la desercià ³n escolar. En todos los aspectos de nuestra vida, la familia es un elemento muy influyente, en la educacià ³n juega un papel de suma importancia, si los padres motivan a sus hijos, les dan su apoyo, es muy probable que estos nià ±os salgan adelante, desafortunadamente no todos los padres comprenden la importancia de legar a sus hijos educacià ³n, su falta de motivacià ³n e indiferencia pueden orillar a la desercià ³n, esto generalmente viene asociado con su escasa preparacià ³n acadà ©mica. Una de las cosas mà ¡s valiosas que todo individuo tiene es su salud, existen situaciones en las que el alumno enferma, lo cual le impide asistir a clases y por lo tanto deserta. Es una ironà a decir que la misma escuela provoca la desercià ³n pero en muchos de los casos asà es y es aquà donde entran las causas internas a la escuela. Muchas veces los mismos maestros pueden provocar la desercià ³n escolar, al utilizar una disciplina rà gida y cerrada, al calificar a los alumnos de ciertaà manera, al no preparar sus clases de manera adecuada, provocando aburrimiento. Se debe poner especial cuidado en el mà ©todo disciplinario que se utiliza, no debe ser muy rà gido pero tampoco tan suave como para propiciar la falta de respeto entre compaà ±eros y maestros. La reprobacià ³n es probablemente la causa interna mà ¡s influyente, ya que el alumno se siente avergonzado y no quiere asistir por temor a la burla de los compaà ±eros, la reprobacià ³n puede ser un resultado de problemas familiares, econà ³micos y sociales, lleva estrecha relacià ³n con las causas externas. Como podemos ver la desercià ³n escolar es un problema muy complejo y de gran trascendencia, ya que de alguna u otra manera frena el desarrollo de la sociedad. Es necesario realizar un trabajo conjugado, tanto maestros, padres, alumnos y sociedad para poder erradicar el problema. Como maestros debemos realizar nuestra labor con amor, dedicacià ³n, y paciencia, debemos encontrar formas de llevar la clase de una manera dinà ¡mica, interesarnos realmente por lo alumnos, motivarlos, resaltar sus virtudes y fortalecer sus debilidades. La influencia que ejerzamos sobre nuestros alumnos puede ser determinante para su futuro.à Un profesor trabaja para la eternidad: nadie puede decir dà ³nde acaba su influencia La desercià ³n escolar es un problema educativo que afecta al desarrollo de la sociedad, y se da principalmente por falta de recursos econà ³micos y por una desintegracià ³n familiar (Jà ¡uregui,). Es un problema educativo, que afecta el desarrollo del individuà ³ que està ¡ dejando de asistir a la escuela y tambià ©n de la sociedad en la que aquà ©l, està ¡ conviviendo. (Dr. Salvador Cà ¡rdenas). Es el desinterà ©s por el estudio en los escolares a causa de problemas socioculturales, emocionales, etc. que vive el educando. Es el rechazo a adquirir conocimientos de gran nivel, la cual es consecuencia de una baja autoestima a no querer sobresalir. Es el abandono parcial o total de la educacià ³n escolarizada. Son varias las razones para que se dà © la desercià ³n. Entre las que mà ¡s comunes està ¡n el factor econà ³mico, un medio comunitario que no alienta la educacià ³n escolarizada, el bajo rendimiento, etc. (Deficià ³n.org) Se puede decir que la autoestima es la visià ³n que tiene una persona de sà mismo, esta oracià ³n resume quizà ¡s un concepto amplio y tratado por muchos autores y tratadistas de la materia. Lo que sà es cierto que si una persona no tiene claro hacia donde quiere ir serà ¡ muy difà cil que vea, que a travà ©s de la educacià ³n formal pueda alcanzar mejores condiciones de vida. En la educacià ³n creo que nos falta mà ¡s responsabilidad a nosotros como alumnos y a los padres hacer à ©nfasis y fomentarnos la enseà ±anza desde chicos, Pero hay casos en los que la falta de recursos econà ³micos juega un papel importante y orilla a los jà ³venes a desertar, la problemà ¡tica de la desercià ³n escolar tambià ©n se debe a muchas de las adicciones que hoy en dà a se ve que es la drogadiccià ³n y no solo eso afecta a todos los estudiantes, sino que tambià ©n tiene que ver mucho los medios que ellos ven como son los videojuegos que hoy en dà a hay son muy violentos y eso atrofian la mente de los jà ³venes y la mayorà a deserta por la falta de dinero à ³sea la economà a.
Monday, August 5, 2019
Analysis of Web Service Efficiency
Analysis of Web Service Efficiency Abstract Web service standards used nowadays are Extensible Markup Language based and the important technology in communication between heterogeneous applications are over Internet. Thereby selecting an efficient web services among numerous options satisfying client requirements has become a challenging and time consuming road block. The path for the optimal execution of all the user request is done using the Hidden Markov Model (HMM). The results have shown how our proposed methodology can help the user to select the most reliable web service available. Our analysis is about creating a cost effective servicing mechanism for web services, if effectively implemented this concept will reduce the need for network engineers in maintenance of web services. As a result of the parallelism technique used in this analysis significant reduction in RT and increase in composition speed has been observed. Keywords: Hidden Markov Model (HMM), Extensible Markup Language, Web Services, Service Quality Architecture (SQA) à 1. Introduction In the Service Web the feedback of customers constitutes a substantial component of Web Service trustworthiness and reputation, this in turn affects the consumer service uptake in the future. All that we presents here is an approach to predict and assess the various reputations that are prevalent in the services oriented environment that is prevalent. All the web services enable computer-computer (c2c) communication in a heterogeneous environment, hence they are very suitable for an environment such as the internet. People can use the standardized web service model for rapid design, implement and extended applications. Many enterprises and corporations provide different web services to be more responsive and cost-effective. All activities that are composite services in nature may be defined by the graphs of control flow and the after coming data graphs. As a service provider, the foremost importance is for the bound(upper), the mean RT of a request given some request load and some architectural environment. Furthermore, this computation should be only performed before the actual deployment and usage of the service. In exceptional cases of service thats of composite nature this performance of the service depends on only the hypotheses about all the invoked service that are elementary in nature. Component approaches another very important benefit is reuse. In the web service definition language all the service that are of elementary nature are conceptually limited to relatively very simple features that can be only modeled by a collection of operations that co exist. Moreover, in due to the application kind its very much necessary to combine a set of all the web services into a single composite web servic e. All of the proposed methodology exploits is the ideas from the Software Architecture- and Component-based approaches to software design. The process of web service selection and discovery of system is essential to provide the clients with proper results and that fulfills their requirements. Its impossible for anybody to fulfill the task without considering all the ranking relations that exist between thousands of various available candidates that have similar functionalities. Thus, ranking is a fundamental process of a Web service selection system, as this integrates all the results thats gathered from previous stages and presents them to those requested. This paper is focused on the various ranking process by considering users SQA requirements. Hidden Markov Model (HMM) A Hidden Markov Model is very well related to the study of how likely or unlikely things are going to happen in the graphical model that is available and well suited in dealing with a sequence of data that are related. The very basic way of thinking this is that we have a set of states, but the road block is we wouldnt know the state directly (this is the reason that makes it hidden). Instead of this, we can only make a state, but we are not in position to tell the state of proceedings for sure. Addition to this is that there are changes (from one thing to another) that is in between states. Each of the change (from one thing to another) between the states is also called as a chance. Sometimes these are known, sometimes they are not known. These states are very flexible instrument that can be put to use not just for clarification purpose but also for (division of something to smaller parts) the purpose and even to create or see or hear things that arent there data. The property of ge nerative works by training a model on this data and then randomly creating chances of (instance of watching, noticing or making a statement) and change (from one thing to another). In this way, you can create data using a hidden markov model. 2.1 Definition Our model of HMM is defined by specifying the following variables: X = {x1, x2, , xn} = set of states Z ={z1, z2, , zm} = the output alphabet à â⠬(i) = probability of being in state xi at time t = 0 A = transitional probability = {aij}, where aij= P r[entering state xj at time t + 1 | in state xiat time t]. Note that the probabilities of going from state i to state j doesnt depend on the previous states at earlier times. B = output probability ={bj(k)}, where bj(k) = P r[zk at time t | in state xj at time t]. For the purpose of giving an example, lets say that we have two biased coins, which we are ipping, and an observer is seeing the results of our coin ips (not which coin were ipping). In fact, suppose that what we are actually doing can be described by Figure1.Here, the states of the HMM are q1 and q2 (the coins), the output alphabet is fH; Tg, and the transition and output probabilities are as labeled. If we let(q1)=1and(q2) = 0 then the following is a example of a possible transition sequence and output sequence for the HMM in the following diagram. We can easily calculate probabilities for the following events. 1. The probability of the above transition sequence: Pr[x1x1x1x2x2x1x1]= à â⠬(x1)a11a11a12a22a21a11à ¢Ã¢â¬ °Ãâ 0.025 The probability of the above output sequence given the above transition sequence: Pr[HHTTTTH]|(x1x1x1x2x2x1x1)] = 2/3,2/3,1/3,5/ 6,1/3 ,2/3 à ¢Ã¢â¬ °Ãâ 0.023 The probability of the above output sequenceandtheabovetransition sequence: Pr[(HHTTTTH)^(x1x1x1x2x2x1x1)] à ¢Ã¢â¬ °Ãâ (0.025).(0.023) à ¢Ã¢â¬ °Ãâ 5.7 ÃÆ'- 10-4 2.2 HMM Applications Classification: speech recognition (time series), handwriting recognition (sequence of points), patterns and motifs in DNA (sequence of characters), analyzing video sequences. Modeling transitions: road snapping to work out which segment the user was most likely on (a sequence of points). Generation: text to speech (another time series application). Calculating the transition probability depends on the problem you are trying to address. In some cases (e.g. road snapping) you can compute it directly from the data. If you know the observation probabilities, then working out the transition probabilities is relatively easy (it comes down to finding the path that maximizes the observation probabilities and doing a count to get a measure of the transition probabilities). The most popular of all probability estimation approaches for HMM is the Baum-Welch algorithm, which allows the estimation of both observation and transition probabilities simultaneously. 3. Service Quality Architecture (SQA) The most important Service Quality Architecture that is used in this paper are RT, cost of execution, availability of space, all the reputation and the successful rate of execution. The RT can be defined in quite a few ways. For instance, RT can be stated as the time in between the sending of request and that of receiving the response. This is the period that involves all the receiving request of message time, QT(queuing time), ET(execution time) and receiving RT by the requester. Measuring these time sections is very difficult because they depend on network conditions. Alternatively, it can be measured as the time between receiving request by service provider and sending response to service requestor. This time it includes QT and ET only affected by the workload of the web service. This is the value that must be continuously updated in each and every web services because of the work load thats of changing nature and web service may change during the work time. Execution cost of this process is a fee received by the service provider from the service requestor during each and every execution. The fee for this is determined solely by the service provider and can change due to the web service providers financial policy at that moment. The availability is a very important degree, that is a web service is accessible and ready for immediate use at any given point. From service requester for each execution. This fee is determined by service provider and may change according to web service providers financial policy. Availability is the degree that a web service is accessible and ready for immediate use. 3.1 SQA Notations The Service Quality Architecture used in this paper is summarized in Table1: SQA Description RT It is the time between receiving and sending request EC Execution cost request Availability Up time Up time down time Reputation Repi Total no.of usage Successful ER No.of successful request Total no.of request Descriptions of notations used in this paper are as follow: m: number of tasks. n: number of candidate web services for each task. pi: i-th atomic process of a composition schema (1 à ¢Ã¢â¬ °Ã ¤ ià ¢Ã¢â¬ °Ã ¤ m). wsij: j-th candidate web service for the ith atomic process, (1 à ¢Ã¢â¬ °Ã ¤ ià ¢Ã¢â¬ °Ã ¤ m , 1 à ¢Ã¢â¬ °Ã ¤ j à ¢Ã¢â¬ °Ã ¤ n). d: index of SQA . wd: weight of the d-th SQA constraint defined by a client. Cond:permissiblevalueofthe d-th SQA (constraints). Aggd: aggregated value of the d-th S Q A of a composition plan. bij: binary decision variable (0 or 1). If bij=1 then j-th candidate web service is selected for i-th process. 3.1 Aggregation Value of SQA Generally, composition plans are constituted from serial, cycle, XOR-parallel and AND-parallel execution patterns. According to the definition of SQA, the aggregative value of web service composition is calculated regarding to its workflow pattern. The description and aggregation values of workflow patterns are discussed below. For the negative criteria, all the values are scaled to equation 2. For positive criteria, all the values are scaled to equation 1. In our paper the values of n SQA attributes of a service S as a vector: Qs = (Qs1, Qs2, ,Qsn) are modeled and all the value of SQA requirement requested by a consumer are vector Qr = (Qr1, Qr2,Qrn) are considered. All the consumers preference values thus are set on SQA attribute that are each in a vector pr = (pr1,pr2,,prn)where pri[1,n].Thus if a consumer has no preferences over an attribute, n will be considered the default preference value for that specific parameter. Related Works The times of server for the database of composite nature Web services have been examined in full detail, this follows the fork-join execution model. The proposal of the author here is that while performing a join operation or execution, the servers with slow RTs will be eliminated to maximize the performance of the server. All the work here is the more orientation towards examination of the fork-join model thereby to understand the resulting merger of data from various servers. All the work in this domain regarding the performance of the Web services is more inclined towards the composite web services and their RT. When the execution of a composite service that have been examined as a fork-join model. Thus here in the model of the states that a single application in the Internet that invokes many different Web services that are in parallel and thereby gathers their responses and from all the launched services to return thereby, all the results to a client are not affected in general. The perfect explanation of the fork and the join system, that is under some hypothesis is to be found. This hypothesis states that the number of servers that is equal to 2, when the job arrival is in the Poisson process and that the task are in exponential service time distribution in general. The great scientist Nelson and Tantawi proposed that an approximation in the case where all the number of servers is much greater or equal to that of 2 and a homogeneous and exponential servers. After which, a more general case that is presented is where the arrival and service process are general in nature. Particle Swarm Optimization (PSQ, Interactive Evolutionary Computation(IEC),) and Differential evolution (DE) are the major 3 evolutionary algorithm that are on focus in this paper. When IEC is the suitable algorithm for discrete optimization (DO), PSO and DE that offer the continuous optimization are more natural. In this paper we give an introduction to all the 3 similar type of EA techniques to highlight all the common procedures of computation. The most common one we have is the observations in the similarities and differences among the 3 algorithms that are based on various computational steps that are discussed here contrasting to their basic performances. Overall the summary of the literatures discussed is given on the location allocation, flexibility in job shop, multimode resource project that have scheduling road blocks and vehicle routing constraints. 4.1 Average RT Calculation The average RT calculation is a measure of the time that an Enterprise Server consumes in order to return the result that is correct and needed. The RT gets affected by numerous factors such as the quantity of user, bandwidth of network thats available at that point of time, average think time of the server and the basic request type submitted to the server. Here in this section, the RT refers to the average or mean RT. Each and every type of the request has own minimal RT. Even though, when during the evaluation or the testing of the system performance, RT is based on the analysis of average RT of all the requests that is sent to the server. More faster the RT of web service, the more requests/min are being processed overall. However, as the number of users on the system rises, the RT starts to rise proportionally, all though the number of request/min decreases. The below mentioned graph of the system performance of all the server indicates that after a point, the requests/min are inversely proportional to RT. The more sharper the downfall in the requests/min, the steeper the increase in RT. The below mentioned figure clearly point at peak load which is when there quests/min starts to fall. Before this point, RT calculations are not precisely done and was not necessary because they do not use the peak numbers in the formula. But from now on, this point in the graph, the admin is more precisely calculated RT by using maximum number of users and requests/min. The formula used above is calculated using the below method and notations. Tresponse, thats the RT(in seconds) at peak load: Tresponse = n/r Tthink No.of con-current users is denoted by n No. of requests/sec that the server receives is denoted by r The avg think time (in sec) is denoted by Tthink The think time is always included in the equation to get a precise and accurate RT result. If n is max, then the system supports at peak load is6,500/second. r is at peak load, then the system can process at peak load is 2,770/second. The avg think time, Tthink, is 5 sec/request. Therefore RT is calculated by the following formula: Tresponse = n/r Tthink = (5000/ 1000) 3 sec. = 5 3 sec. Thus, the RT is 2 seconds. Application Server performances critical factors are RT, along with throughput. Everything after the systems RT is being calculated at the peak load. 5. Proposed Methodology Optimal web service composition plan that is a composition plans of this road block is very large (nm), is proposed in our paper that presents an approach to find and improve GA that are presented, it quickly converges all the appropriate composition plan. The Tabu search that is being used for generating the neighbor plans and are simulated annealing the heuristic that is applied for accepting or rejecting the neighbor plan. In this phase, all the services thats located after the users requirement will be deleted. Thereby, the remaining services that fulfill the user request. Now among these services, a service with the higher score will be selected. We have proposed the Tabu search and the simulated annealing (SA) that is a constrained satisfaction based approach. Yet, the approach has a high possibility of not completing the local optimum because it is unable to work on more than 1 composition plan simultaneously. We presented an approach in which genetic algorithm is used to find the optimal composition plan. The SA method applies progressive updates to the further generation and the selection of chromosomes to increment the speed of the algorithm performance. Thus, Self-orchestration explains all the Interaction between and within the services that itself orchestrates, before doing anything it actually does the execution. One of the primary languages for the defining self choreographies is the Web Service Choreography Description Language. When this is used partial initialization of chromosomes to escape all the local optimums in general. After all, this proposed method will works on a test sample of composition plans, which is on the contrary to the Tabu method. The different composition approaches that describes the different composition models is provided, which are self-orchestration, self-choreography, self-coordination and part of the component. Self-Orchestration is a description of how the services that participate in the composition of interaction at the message level, including the various order in which iterations that possibly should be executed as well as the business logic. Fig 1: Values of All Web Services and Tasks 5.1 Proposed Design The following diagram shows the activity functions. By using the database it will show all the relevant content to the user. And it tells about the flow of activity of each object. Activity diagram is another important diagram to describe dynamic aspects of the system. Its basically a flow chart that represent the flow from one activity to next activity. In this case the following diagram consist of Server, User, database, checking various query and Sub query. Each actor will perform certain function to achieve the desired goal. First a user enters into a system by providing correct user name and password. After this we will be able to type the query. A use case diagram in its simplest form is a representation of a users interaction with the all the system and depicting the various specifications of a use case. This should be noted that the process of filtering all the web services consists of functional match making and non-functional matchmaking as well. In functional matchmaking, all the web services that have different functionalities from the client are filtered out fully and on the other hand, in non- functional matchmaking, the web services that dont have the appropriate quality are only eliminated. At this stage, the candidate web services for each task are selected. Now the details of the user are fetched into the web agent memory or a temporary storage allocation site. Further the web agents analysis the various web applications in order to finalize the optimal web servers and the resulting information are displayed with user comments and reviews. Fig 2: Flowchart The below diagram tells about the different sequence we are following to make a user to view his related content. In this diagram contain different object like User, database, Validate, relevant and web access. And it tells about the flow of sequence between the objects. A sequence diagram is a kind of interaction diagram that shows how processes operate with one another and in what order. It is a construct of a Message Sequence Chart. The user inputs the login details and connects through we access which are then linked to the time and review request. Now, web agent analysis the various requests from the web applications and provides the information regarding the time and review and gives the possible details to the user. Fig 3: Sequence Diagram In recent years, the application of web-based systems in institutions and government agencies is increasing. Introduction of web services is an effective approach in business structures to provide the required capabilities of service providers for services composition. Selecting the precise user service based on the users request is primarily based upon the service quality of the available web services. Several different methods have been suggested to solve the road block of web services composition based on qualitative characteristics. These methods can be divided into two types of exact methods and approximate methods. The first type is known as non-innovative methods which selects the best design from all available designs by examining and calculating the candidates routes and thus provide a more precise answer. In the second type or innovative methods, contrary to the first type, an ideal design that is close to the best and most accurate answer will be chosen. The below mentioned graph that actually compares the various web services that are available in that field and displays its performance based on RT and user reviews that are given. Fig 4: Resulting Graph Due to the importance of optimal composition of web services in recent years, a lot of works have been done in the field of each method. By studying various types of innovative algorithm, one can conclude that many road blocks still exist to solve in web services composition based on qualitative characteristics. For instance, each of these methods usually have local optimality road block alone or in genetic algorithm that are non complex and basic, the crossover type and the operation of mutation acts randomly and without any guidance, which leads to degeneration of the method. Therefore, efforts to improve efficiency such as using combined methods, operators like revolution operator or adding functions to improve were performed. These techniques are provided for better speed, faster convergence, and higher efficiency in large spaces. Based on the mentioned studies, there is no specific benchmark tool for evaluating the algorithm. Although some researchers used different simulation environments or different data to compare them with each other, the results show that different methods have different disadvantages and they do not have any specific standard. Skyline algorithm method and parallelism technique are used in this proposed method in order to provide the best composition with regard to the shortest RT in high scalability. Conclusion For the purpose of retaining their client all the web services first priority is maintaining Service Quality. This paper pays attention to the RTs of composite Web service that plays a very important role in attaining service quality in web services.. We propose a heuristic model for predicting RT of web service and thereby selecting an optimal web service at the runtime from the list of functionally similar web services. For the purpose of the probabilistic instances of Web Services. We have used Hidden Markov Model. Our model has been made with the assumption of Web Services that is deployed on a cluster of web servers and thereby sometime the delayer crash during WS invocation happens which is because the bad node in sever clustering responds to request of the user. By using HMM where ever needed we have predicted the probabilistic nature and predicted the behavior of these web servers and then selected the Web Services based on their optimal probabilistic value. An approach is proposed to solve the Service Quality Architecture aware Web Service selection road block. To avoid this problem, an SQA based algorithm is presented that will reveal all selection leading to the results thats very close to optimal, efficient solution. This process in arriving at the solution is also done at a rapid speed which is worth mentioning. 7. Reference SalehieTahvildari L. Selfadaptive software: Landscape research challenges. ACM Transactions on Autonomous and Adaptive Systems. 2009;4:1-42. T.Rajendran, P.Balasubramanie. An efficient architecture for agent-based dynamic web service discovery with SQA. Journal of Theoretical and Applied Information Technology; Islamabad Pakistan. 2010 May; 15(2). J.Cardoso, et al. Quality of service in workflows and Web service processes: Web Semantics Science, Services and Agents on the WorldWideWeb.2004; 1:281-308. CardelliniV, et al. MOSES: A framework for QOS driven runtime adaptation of service-oriented systems. IEEE Transactions on Software Engineering.2011. ErradiA, Maheshwari P. Dynamic binding framework for adaptive web services. Proceedings of the 2008 Third International Conference on Internet and Web Applications and Services; 2008. LIU, Z., J. LI, J, LI, A. AN, J. 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WEERAWARANA, unraveling web services, An introduction to SOAP, WEB SERVICE DEFINITION LANGUAGE and UDDI, IEEE Internet Computing , Vol.6 (2002), pp.86-93. 12. KOSHMAN.S, visual -based information Retrieval on the Web, Library and Information Science Research Vol.28 (2006), pp.192-207. 13.CHEN L.S, F.H HSU, M.C CHEN, Y.C HSU, Developing Recommender Systems with the Consideration of Product Profitability for Sellers, Information Sciences, Vol.178 (2008), pp.1032-1048. 14. CHEN Y, L.ZHOU, D.ZHANG, ontology-supported Web Service composition, An approach to service-oriented knowledge Management in Corporate Services , Database Management Vol.17 (2002), pp.67-84. 15.OSULLIVAN J, D.EDMOND, A.T HOFSTEDE, whats in a service? Disturbed and Parallel Databases Vol.12 (2002), pp.117-
Sunday, August 4, 2019
Educating Rita by Willy Russell :: Papers
Educating Rita by Willy Russell Educating Rita is a play written by Willy Russell. It is about a woman called Rita who feels her life is not fulfilled so she goes to Frank who works at an Open University to tutor her. Rita has a husband called Denny. He is working class and has never been to university, like Rita before she goes to she Frank. Frank on the other hand is a lecturer of literature but does not have everything. He is unhappy at home and is often drunk at his tutorials. The audience's first impression of Frank is that he likes a drink (or two) because in the first scene he is looking for his hidden bottle of whisky. We know straight away that he is a heavy drunk. We only hear Frank talking on the telephone with his partner, Julie. Frank doesn't treat Julie with any respect. He has no intension of going home for tea, he would much prefer to get drunk at the pub. After putting down the phone Frank says " yes that's it you go and put your head in the oven". This shows frank has no feelings for her. Frank works in a university but also tutors for the Open University. Franks wife has quite a few friends but frank doesn't because he is always out at the pub. Frank uses clever words and talks in an intellectual manner. When Rita looks at the picture and says" that's a nice picture" frank thinks it is a strange thing to notice because he has never really noticed it. "Actually I don't think I've noticed it in about 10 years". Frank feels it is a very strange thing to talk about. He takes his surroundings for granted, For example the window " I don't often consider it actually" and jokes about throwing a student out of it. I think Frank likes and respects Rita because he said, "Would you like to borrow it" meaning the book. He also must have had respect for her to let her come to his dinner party.
Saturday, August 3, 2019
Can virtue be taught? Essay -- essays research papers
lthough today's society includes much technology and new things are supposedly being discovered every day, many age old questions still remain unanswered; questions such as: "Can virtue be taught?" This question is examined in detail throughout Plato's Meno, and although the play leaves the question as to what virtue is unanswered, Socrates attempts an answer to Meno's question. Although he is not particularly keen on answering whether virtue can be taught without first having a complete understanding of what virtue is, he attempts to please Meno by solving this in the way that geometers conduct their investigations, through a hypothesis. Socrates states that if indeed virtue can be taught then one thing will happen, and if it cannot a different thing will happen. In the end of the play, the conclusion is reached that virtue is a gift from the gods. Now the question must be asked: how was this conclusion reached in relationship to Socrates' previous hypothesis? It is thought by Meno that men cannot be taught anything but knowledge, therefore, virtue must be a kind of knowledge in order to be taught. This corresponds with the hypothesis because the conclusion can be reached that, if virtue is knowledge then it can be taught, but if it is not knowledge then it is impossible to teach. However, this leads to a new question that must be answered before a conclusion can be reached: is virtue knowledge? It is later stated that, if knowledge includes all aspects of realit...
Friday, August 2, 2019
American Era Best Choice :: essays research papers
During the period from 1865 to 1929, I think that the most important person, event and technology were Abraham Lincoln, The Civil War, and the airplane. Ã Ã Ã Ã Ã Abraham Lincoln, the person I felt most important, was an incredible man. Not only for his charisma, and character, but for his actions and what he believed in. Ã Ã Ã Ã Ã He was a man from the North, who was for the abolishment of slavery. He was a Republican. Although good to the North, the Southerners declares him as the greatest evil of the century. President Lincoln won the election with 180 electoral votes and 1,865,583 of the popular votes. Winning the South by a hundred electoral votes and thousands of popular votes in 1860. Ã Ã Ã Ã Ã When Confederates broke off with the United States, the civil war became a fight to keep as a union. Lincoln declared himself as commander in chief, forced his troops to emancipate slaves, as well as protect them. Ã Ã Ã Ã Ã Lincoln grew up poor, taught himself all that he knew, his belief of all men being created equal is what set's him apart from so many other people. During this time he was revolutionary in changing the lives of slaves and the mind of a white man. Ã Ã Ã Ã Ã He signed the 13th Amendment, freeing all slaves. He also gave one of the most inspirational speeches of his time at Gettysburg. And along with his words, the country held together. Ã Ã Ã Ã Ã I feel that President Abraham Lincoln kept this country together, without his leadership, our country would not be one solid nation, rather broken into separate ruled states. Although being assassinated on April 15, 1865, to me he is still the most important man in American history. Ã Ã Ã Ã Ã The events that I thought were very important ties up with President Lincoln, the Civil War. Ã Ã Ã Ã Ã The Civil War is what eventually kept the states together. It is said to be the war with the most loss of life on American soil. Ã Ã Ã Ã Ã This war started on April 12, 1861 at Fort Sumter and ended on June 8, 1863 at Fort Hudson on the border of Mississippi and Louisiana. Although it is said, the last battle was at Gettysburg. Ã Ã Ã Ã Ã The reason I feel the Civil War was so important to United States history and all the eras are because it was one thing that kept us all under one democratized government. Without the war, we would be just another jumbled, out of government and troubled country. Ã Ã Ã Ã Ã The most important technological development I think would have to be the airplane.
Thursday, August 1, 2019
Bowen Family Systems
Bowen Family System Theory Introduction In doing my studies on family/systemic counselling, I found Bowenââ¬â¢s theory intriguing. In my work and everyday life, I witness triangulation on a daily basis, from my own experience, without the awareness from this module, I was often entwined in triangulation. As a trainee therapist I decided to write my paper on Bowenian Therapy in order to gain a better understanding and develop my awareness. Murray Bowen, M. D. (31 January 1913 ââ¬â 9 October 1990) was an American psychiatrist and a professor in Psychiatry at the Georgetown University. Bowen was among the pioneers of family therapy and founders of systemic therapy. ââ¬Å"The family systems theory is a theory introduced by Dr. Murray Bowen that suggests that individuals cannot be understood in isolation from one another, but rather as a part of their family, as the family is an emotional unit. Families are systems of interconnected and interdependent individuals, none of whom can be understood in isolation from the systemâ⬠(Genopro. com 18/11/2010) Bowenââ¬â¢s interest in family began as he was practicing as a psychiatrist in the 1940s. He focused on schizophrenic patientââ¬â¢s emotional relationships with their mothers. Others have called it a symbiosis relationship, but for him it was only an exaggerated natural process of emotional relationship. In 1954 he started to hospitalize the entire family of the sick (schizophrenic) person. He found out that the entire family suffered with the sick person emotionally. He also studied the relationship between mother-child symbioses. This involved a certain repetitive pattern, where he observed alternating patterns of closeness and distance. They portrayed sensitive emotional tensions caused by separation anxiety and incorporation anxiety. In 1959 he started working with families with less severe problems. Surprisingly these families displayed the same problems as the disturbed families. He concluded that there is no discontinuity between the normal and disturbed families but vary along a continuum line of emotional fusion to differentiation. Bowen was one of the first to realize that the history of our family creates a template which shapes the values, thoughts, and experiences of each generation, as well as how that generation passes down these things to the next generation. Bowen's theory focuses on the balance of two forces ââ¬â togetherness and ââ¬â individuality. Too much togetherness can prevent individuality, or developing one's own sense of self whereas too much individuality results in a distant and estranged family. The theory looks at the family as a system and describes the complex interactions that exist in any one unit. The way members of a family are connected and the way they react to one another makes the functioning of family members interdependent. According to the theory, mental illness happens as a result of emotional fusion. This can happen when there is an increase in the level of emotions and anxiety in the family. Bowen introduced eight interlocking concepts to explain family development and functioning. Below I will provide an overview of each concept. Differentiation of Self The first concept is Differentiation of Self, or the ability to separate feelings and thoughts. Undifferentiated people can not separate feelings and thoughts; They have difficulty thinking logically because when asked to think they are flooded with feelings, so this makes It difficult for them to base their responses on their own logical thinking. They also have difficulty differentiating between their feelings and the feelings of others. They look to their family to define how they think about issues, feel about people, and interpret their experiences. Differentiation is the process of freeing yourself from your family's processes to define yourself so you can have different opinions and values than your family members, but are still capable of staying emotionally connected to them. It means being able to calmly reflect on a conflicted interaction afterward, realising your wn role in it, and then choosing a different response for the future. Triangles Triangles are the basic units of systems. They balance between closeness and distance. The third person or party brings unity and creates continuity in warring situation. The triangle brings stressed person into a manageable level of operation. This involves true listening and gives a true advice for a better solution. In it virtually all relationships are shadowed by third part ies. For example when a couple have an argument, afterwards, one of the partners may call their friend to talk about the fight. The third person helps them reduce their anxiety and take action, or calm their strong emotions and reflect, and make decision. People who are more undifferentiated are likely to triangulate others and be triangulated whereas people who are differentiated cope well with life and relationship stress, and as a result are less likely to triangulate others or be triangulated. The Nuclear Family Emotional Process These are the emotional patterns in a family that continue over generations. This involves a modeling scenario where a family member models and imitates the behaviour and even the language of his or her parents. For example, a parent who teaches his or her children to be happy when things are ok and sad when things are bad shapes the future thinking of those children. Here the parent passes on an emotional view of the world (the emotional process), which is taught throughout generation from parent to a child, in a nuclear family. Reactions to this process can range from open conflict, to physical or emotional problems in one family member, to reactive distancing. This will bring problems with family members like substance abuse, mental illness and irresponsibility. The Multigenerational Transmission Process This process entails the way family emotional processes are transferred and maintained over generations. This captures how the whole family joins in The Family Projection Process, for example, by reinforcing the beliefs of the family. As the family continues this pattern over generations, they also refer back to previous generations (ââ¬Å"He's just like his Uncle ââ¬â he was always irresponsible tooâ⬠or ââ¬Å"She's just like your cousin Mary ââ¬â she was divorced four times. ââ¬Å"). Sibling Position Bowen believed In sibling order and that each child had a place in the family hierarchy. He believed that the oldest sibling was more likely to be seen as overly responsible and mature whilst the youngest as overly irresponsible and immature. Emotional Cut-off Emotional cut-off refers to the techniques people use to reduce anxiety from their unresolved emotional issues with parents, siblings, and other members from the family of origin. Some people seek distance either by moving away physically or emotionally using silence, diversion or avoidance of difficult and hurtful topics. To avoid sensitive issues, they may move away from their families and refuse to go home regularly. This strategy may work in the short term to reduce immediate anxiety but over time, the deeper, unresolved problems are toxic towards other relationships. An open relationship is the opposite of emotional cut-off. It is the best way to reduce a family's over-all anxiety. Continued low anxiety permits family members who would like to, to begin the slow steps to better differentiation. Bowen wrote, ââ¬Å"It might be difficult for a family with severe cut-offs to begin more emotional contact with the extended family, but any effort toward reducing the cut-off with the extended family will soften the intensity of the family problem, reduce the symptoms, and make any kind of therapy far more productive. Societal Emotional Processes The concept of societal emotional process describes how the emotional system governs behaviour on a societal level, promoting both progressive and regressive periods in a society. Cultural forces are important in how a society functions but are insufficient for explaining the rise and fall in how well societies adapt to the challenges that face them. The societyââ¬â¢s attitudes towards for example different r aces, classes, genders and sexual orientation, have definite effects on the family. In many ways, this is like the Family Projection Process scaled up to the level of a society as a whole. The way a family deals with prejudice, discrimination and persecution is instinctively passed on to their children so that they can survive in their unique environment. The coping practices of the parents and extended family may lead to more or less adaptive emotional health for the family and its members. Normal Family Development According to Bowen, all families lie along a continuum. Bowen believed that all families lie on a spectrum or continuum and that it is difficult to try to classify families into types. If circumstances change, one type of family could change and become another type of family. For this reason, Bowen is credited with being one of the first culturally sensitive family therapists. A normal, adjusted family will have tensions and anxieties but will be balanced in terms of their togetherness and differentiation. A normal family will have good emotional balance and recognise that some problems are external and others come from the individual. There are connections between the different generations in the family and also to the extended family. The transitions for example from adolescence to adulthood are smooth and supported by the wider family. Past pains and joys are shared. Bowen says no matter how we transform and forget the past, these memories of our relationship, still stay alive in us. The danger is the way our former family attachment will shape our new family. At various times difficulties in different relationships, sometimes called dyads, are resolved without drawing in others into their difficulties. The ability to tolerate and support family members with different views supports differentiation and is a sign of a healthy family. Awareness of external societal influences as well as the unique family influences helps a family to become well adjusted. During times of grief and loneliness for example, family members give space and allow the person opportunity to grow. A positive emotional atmosphere with a belief in the virtues of family builds normal family development. Finally, when family members depend on each ther for feedback and support rather than in co-dependent ways, the family develops healthily. Family Disorders Bowen believed that family problems result from emotional fusion, or from an increase in the level of anxiety in the family. He believed that the member with ââ¬Å"the symptomâ⬠is the least differentiated member of the family, and is the one who has the least ability to resist the pull to become fused with another member. This person absorbs the anxiety an d worries of the whole family and has the least ability to separate their own thoughts and feelings from those of their family. Families face two kinds of problems. Vertical problems are ââ¬Å"passed downâ⬠from one generation to the next. Thus, adults who had cold and distant relationships with their parents do not know how to have warm and close relationships with their children, and so pass down their own problems to their children. Horizontal problems are caused by environmental stressors or transition points in the family development. This may result from traumas such as a chronic illness, the loss of the family home, or the death of a family member. However, horizontal stress may also result from Social Emotional Processes, such as when a minority family moves from a like-minority neighbourhood to a very different neighbourhood, or when a family with traditional gender roles immigrates to a culture with very different views, and must raise their children there. The worst case for the family is when vertical and horizontal problems happen at once. Goals of Therapy Bowenââ¬â¢s therapy was not aimed at changing people or solving problems, it was basically geared towards: â⬠¢ Helping families to inquire and explore their own roles in family problems Making them assume responsibility for their own problemsâ⬠¢ People learning more about themselves and their relationships â⬠¢ Decreasing emotional reactivityâ⬠¢ Improving self-focus â⬠¢ Modifying dysfunctional patterns â⬠¢ Evaluating progress of the family in terms of how they function now, as well as how adaptive they can be to future changes In general, the t herapist accomplishes this by giving less attention to specific problem they present with, and more attention to family patterns of emotions and relationships, as well as family structures of dyads and triangles. Techniques that are most prominent in the practice of Bowenian family systems therapy. Genogram: Bowen used what he termed a ââ¬Å"family diagramâ⬠to collect and organise important data concerning the multigenerational family systems. In 1972 Guerin renamed the family diagram the ââ¬Å"genogram. â⬠The main function of the genogram is to organise data during the evaluation phase and to track relationship processes and key triangles over the course of therapy. In the process of assessment, the following are noted: the history of the presenting problems, exact dates are noted, history of the nuclear family, when the parents met, their courtship, their marriage, child rearing, where the family lived especially in relation to the location of the extended family, history of both spouses birth, sibling positions, facts about childhood, past and current functioning with parents The Therapy Triangle: This technique is based on the theoretical assumption that conflictual relationship processes within the family have activated key-symptom-related triangles in an attempt to re-establish stability; and the family will automatically attempt to include the therapist in the triangling process. If they succeed, therapy will be stalemated. On the other hand, if the therapist can remain free of reactive emotional entanglements, in other words, stay detriangled ,the family system and its members will calm down to the point where they can begin to work out s olutions to their dilemmas. Relationship Experiments: Relationship experiments are carried out around structural altercations in key triangles. The goal is to help the family members become aware of systems processes and learn to recognise their role in them. Thomas F. Fogarty developed experiments for use with emotional pursuers and distancers (lartin-drake. com 28/12/2010). Pursuers are encouraged to restrain their pursuit, stop making demands, and decrease pressure for emotional connection and see what happens in themselves and in the relationship. The exercise isnââ¬â¢t designed to be a magic cure, as some people have hoped, but to help clarify the emotional processes involved. Distancers are encouraged to move toward the other person and communicate personal thoughts and feelings, in other words, to find an alternative to either avoiding or capitulating to the othersââ¬â¢ demands. Coaching: Coaching is the Bowenian alternative to the more emotionally involved role common to most other forms of therapy. By acting as a coach, the Bowenian therapist hopes to avoid taking over for patients or becoming embroiled in family triangles. The goal is increased understanding, increased self-focus, and more functional attachment to key family members. The I-Position: Taking a personal stand, saying what you feel, instead of what others are ââ¬Å"doingâ⬠, is one of the most direct ways to break cycles of emotional reactivity. Bowenian therapists not only encourage clients to take I-Position, they also do so themselves. Another assumption in Bowenian therapy is that confrontation increases anxiety and decreases the ability to think clearly and see options. Therefore, displacing the focus, making it less personal and less threatening, is an excellent way to increase objectivity. This forms the basis for two related techniques, multiple family therapy and displacement stories. Conclusion In conclusion I believe that Bowen developed a comprehensive theory of family therapy which inspired generations. His theory describes how the family shapes the interplay of individuality and togetherness using six interlocking concepts which are: differentiation of self, triangles, nuclear family emotional process, family projection process, multigenerational transmission process and sibling position. In 1970 Bowen added two additional concepts: emotional cut-off and societal emotional process. Bowenian therapy is a process of active inquiry in which the therapist helps family members get past blaming and fault finding in order to face their own roles in family problems. The goals of Bowenian therapy are not to change people or to solve their problems. Instead they see therapy as an opportunity for people to learn more about themselves and their relationships so that they can assume responsibility for their own problems. Contents Introduction Differentiation of Self The Nuclear Family Emotional Process Triangles The Multigenerational Transmission Process Sibling Position Emotional Cut-off Societal Emotional Processes Normal Family Development Family Disorders Goals of Therapy Conclusion Bibliography Bibliography http://www. abacon. com/famtherapy/bowen. html (14/12/2010) http://www. anzjft. om/pages/articles/78. pdf (14/12/2010) http://www. bukisa. com/articles/293438_what-is-the-concept-of-bowen-family-therapyixzz14iOkMQpM (16/12/2010) http://www. genopro. com/genogram/fam ily-systems-theory/ (22/10/2010) http://www. houd. info/bowenTheory. pdf (22/10/2010) http://www. lartin-drake. com/distancer. pdf (22/10/2010) Bibliography http://www. abacon. com/famtherapy/bowen. html http://www. psychpage. com/learning/library/counseling/bowen. html http://www. bukisa. com/articles/293438_what-is-the-concept-of-bowen-family-therapy http://www. thebowencenter. org/ http://homepages. wmich. edu/~macdonal/SW 6680. 05/Friedman. Bowâ⬠¦ Contents Introduction
John Kenneth Galbraith
He was a U. S economist, public official and diplomat, and a leading proponent of the 20th-century American liberalism. His books on economic topics were bestsellers from 1950ââ¬â¢s through 2000ââ¬â¢s, during which time Galbraith fulfilled the role of public intellectual. In macro-economical terms he was intitutionalist. He was Americaââ¬â¢s most famous economist for good reason. A witty commentator on Americaââ¬â¢s political follies and a versatile author of bestselling books that warn prophetically of the dangers of deregulated markets, corporate greed, and inattention to the costs of our military power including the ââ¬Å"THE NEW INDUSTRIAL STATEâ⬠. Galbraith always made economics relevant to the crises of the day. Galbraith was born on October 15, 1908 and was raised on a small Canadian farm. He began to teach at Harvard in his twenties. He was a long-time Harvard faculty member and as a professor of economics stayed with Harvard University for half a century since 1934. In 1938 he left to work in New Deal Washington. Following his years as a writer at fortune, where he did much to introduce the work of John Maynard Keynes to a wide audience. He returned to Harvard in 1949 and began writing the books that would make him famous. He was a prolific author and wrote four dozen books, including several novels and published over a thousand articles and essays on various subjects. Among his famous works were popular trilogy on economics. (American Capitalism 1952), (The Affluent Society 1958), and (The Industrialized State 1967). Galbraith was also active in Democratic Party politics, serving in the administrations of Franklin D. Roosevelt, Harry S. Truman, John F. Kennedy and Lyndon B. Johnson. He served as United States Ambassador to India under the Kennedy administration. His prodigious literary output and outspokenness made him arguably ââ¬Å"the best-known economist in the world during his lifetime. Galbraith was one of few recipients both of the ââ¬Å"MEDAL OF FREEDOMâ⬠and the ââ¬Å"PRESIDENTIAL FREEDOMâ⬠. Over the years, Galbraith developed a distinctive way of ââ¬Å"doing economics,â⬠and it made him a critic both of conservatives and of many liberal economists. Galbraith was often at the very epicenter of politics in his time. Ako gi focus ag Popular niya na books ag trilogy. Iya first books which is the American Capitalism, ag Industrialized State and The Affluent Society. And The culture of Contentmen which was published in 1992. So in his first book which is the American Capitalism: The Concept of Countervailing Power in 1952. So it is the concept of acting or to avail against with equal power. In this book Galbraith exposed the myth that competition between different firms in an industry prevented monopolistic exploitation. In the Affluent Society (1958). Galbraith exposed the idea of ââ¬Å"consumer sovereigntyâ⬠. He argued that large corporations invested large sums in the design, planning and manufacturing of a new product. To make sure that the product sold, they had to create a want for it. In other words, ââ¬Å"wants are created by those who satisfy themâ⬠. Galbraith also argued that the government should make large investments in education and transport infrastructure by using funds from general taxation. Galbraith worked as an adviser to President John F. Kennedy who originally planned to appoint him as a Secretary of the Treasury. After Kennedy was pressured he gave the job to another person. In 1961 Galbraith was appointed as U. S ambassador to India. He held the post until the assassination of Kennedy in 1963. In The New Industrial State (1967) Galbraith continued his attack on the capitalist system. He argued that in advanced industrial economies it is the managerial and other experts of the large corporations who really run the system, ââ¬Å"subordinating the activities of the state to their own goals of corporate growth and personal self-esteemâ⬠. Galbraith remained active in politics and worked as an adviser to politicians on the left of the political spectrum. He once said that ââ¬Å"The modern conservative is engaged in one of manââ¬â¢s oldest exercises in moral philosophy; that is, the search for a superior moral justification for selfishness. â⬠He was also critical of communist governments: ââ¬Å"under capitalism man exploits man. Under Communism, itââ¬â¢s just the opposite. â⬠The Culture of Contentment in 1992. ââ¬â galbraith pointed out that around 50% of Americans take little interest in politics. As they rarely vote, they are ignored by politicians. The two major political parties in the United States therefore concentrate on those who do vote the better of classes. This group tend to demand that taxes are kept low and that they are used on programmes that help the contented classes themselves. As a result, only a small percentage of government revenues are spent on helping the underclass or repairing Americaââ¬â¢s crumbling infrastructure.
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