Innovation and Design Strategy Essay Example for Free

Innovation and Design Strategy Essay Samsung Electronics: Innovation and Design Strategy Introduction: The case study commences with the integration of innovative design and brand management by Samsung Electronics which started a new trend in the electronics industry. As discussed in the case, initially Samsung was not much popular and lacked design identity but later it relocated itself by: * Improvement in the product development processes * Increasing their investments in RD and product design i. e. RD globalization. * By adopting right innovation strategies. By mastering the less tangible, more intuitive qualities of superior design. By diversification of products and step by step or continual improvement. * Implementing Global localization strategy. * Achieving Vision of leading in digital convergence by using e-processes (electronic integration of processes by going online). All these methods were implemented by Samsung in order to improve its productivity and to gain competitive advantage over its competitors like LG Electronics, Sony, Apple Computer Inc. , etc. Despite this, Samsung is facing the challenge to stay ahead in competition in the near future. Consumer electronics industry is facing a tough competition and the need of the our is to optimize the R D costs, having relevant information regarding the IPR (Intellectual Property Rights) while design outsourcing and using appropriate product design followed by appropriate market strategy. Case Analysis: As mentioned in the case, the background of Samsung can be discussed in a tabular form: * Started by Byung-Chull Lee in 1939 as an exporter of agricultural products. I * Samsung Electronics established in 1969 followed by product diversification. I * Strategic Joint Ventures with NEC, Sanyo and Corning Glass work in 1970 | Brought 50% stake in Korea Semiconductor Inc. I * Acquisition of Korea Semiconductor Inc. in 1978 followed by the successful implementation of reverse engineered product design I * Vertical integration by developing their own ICs DRAMS(Dynamic Random Access Memories in 1985 Focus on qualitative growth than quantitative growth in 1990 | * Loosening of import restrictions by South Korean government I And Samsung achieved price competitiveness in 1991. | * In 1992, Samsung established R;D center in European markets. I * In 1994, Samsung established R;D center in US markets. I * In 1997, Samsung cuts its Korean and overseas workforces due to Asian Financial crises. I * In 1999, Samsung was regarded as worlds premiere consumer goods and services industry By Forbes. I * In 2000, Samsung embarked vision to convert itself into a Digital- e company. * Increased design staff and 2004 | * In 2005, Samsung increased its design budget by 20%-30% | * In 2006, Samsung registered 17,377 patents worldwide I * In 2007, Samsung held management, product design and investment in RD provided them advantages over its competitors. Hence, they improved step by step with the product iversification, Mergers and Acquisitions, vertical integration and implementation of new technology. They were aggressively involved in marketing and improving their brand image in the minds of their customers. The Samsungs learning and leveraging matrix can be explained as: Dedicated business units e. g. Informal technology transfer I New venture department or division, e. g. skunkworks( Investments in RDs) I Independent business unit, e. g. Predivestment or potential spinout I Direct integration or business team ( Vertical Integration by developing their own ICS) I High Low Leveraging existing competencies Innovation and product Design at Samsung Electronics Samsung Electronics leading position was contributed by the enlisted factors: * Creative people in the organization which contributed in the development of technology. * Co-operation between the business partners throughout the supply chain * Firms ability in exploring end penetrating into the new markets * Speed of innovation and product development. Along with this Samsung also increased the investments in their RD centers. After doing the trend analysis for the Exhibit 3 which shows the Samsung RD udget and percentage sales, We arrive at the conclusion that the Samsungs R;D budget increased till the year 2007 linearly. But there is decline in the percentage of sales in the year 2007, which suggests that the Samsung will need to rethink this strategy. There is an urgent need to optimize the cost related to Samsungs RD expenditure to prevent the decline of sales in future. Samsung globalized their RD network worldwide to develop technologies which can be commercialized in the future. Basically the main idea behind the globalization of RD network is to: * Focus n innovation and generating new products for global market. * There is a huge scope of product improvement. * This provides an access to the emerging markets. * Leverages the market opportunity for the firm. User- Centric Design Philosophy Samsungs philosophy was to strike the balance between the reasons and feelings. This was done by them with the rationalization of the design of product by using geometric and technological parameters and enhancing the design to the product so that it can make the emotional connection with the user. Their global localization strategy helped them to become a top class consumer lectronics company. Marketing Samsung used electronic processes to achieve their vision of leading in digital convergence. The Convergence and integration between manufacturing, promotion ; distribution of electronics included releasing, promoting and marketing. This * Helped in product differentiation * Better value propositions or bundle of benefits to the customers. This graph shows net sales and operating profit of Samsung Electronics 2007 Samsung Electronics E-processes comprised of: The SCM, RD management and Customer management processes were ntegrated with ERP (Enterprise Resource Planning). ERP implementation provided them a wider access to the Samsung Electronics operations. This improved their overall processes and improved efficiency.

Application of GIS Technology in Electrical Distribution

Application of GIS Technology in Electrical Distribution ABSTRACT Electric utilities have a need to keep a comprehensive and accurate inventory of their physical assets, both as a part of normal service provision (extending the network, undertaking maintenance, etc.) and as a part of their obligation to inform third parties about their facilities. Complexity of electrical distribution power system is a good reason for introducing new information technology GIS (Geographic Information System) that carries out complex power system analyses (e.g., fault analysis, optimization of networks, load forecasting) in acceptable amount of time. By using modern GIS, in conjunction with his own in-house developed software, in less time and more accurately, the utility engineer is able to design and to analyze electrical distribution network. This paper presents the idea of the project CADDiN © (Computer Aided Design of Distribution Network) currently under development at the Power Systems Department of the Faculty of Electrical Engineering, University of Zagr eb. INTRODUCTION Importance of Distribution Network in Energy Supply One of the primary contribution to the advancements and improvements in mans life-style over the years has been the ability to use and control energy. Mans use of energy can be seen in everyday operations such as mechanical motion and the production of heat and light. Large amounts of power are generated at power plants and sent to a network of high-voltage (400, 220 or 110 kV) transmission lines. These transmission lines supply power to medium voltage (e.g. 10 or 20 kV) distribution networks (distribution primary system), which supply power to still lower voltage (0.4 kV) distribution networks (distribution secondary system). Both distribution network lines supply power to customers directly. Thus, the total network is a complex grid of interconnected lines. This network has the function of transmitting power from the points of generation to the points of consumption. The distribution system is particularly important to an electrical utility for two reasons: its proximity to the ultimate customer and its high investment cost. The objective of distribution system planning is to ensure that the growing demand for electricity, with growing rates and high load densities, can be satisfied in an optimum way, mainly to achieve minimum of total cost of the distribution system expansion. Therefore, the distribution system planner partitions the total distribution system planning problem into a set of subproblems that can be handled by using available, usually heuristic methods and techniques [T.Gonen, 1986]. The design of electrical distribution networks is an everyday task for electric utility engineers, specially in RD department. Such design was carried out few years ago manually. This classical approach usually result in overdesign distribution system, which is now considered as a waste of capacity that can be used instead of investing in system expansion. Four years ago a PC program package (CADDiN ©) for optimal planning of distribution network was put in operation in Elektra Zagreb (Electric Utility of City of Zagreb). It is a result of joint RD of Power System Department of Faculty of Electrical Engineering and Elektra Zagreb. Based on the experience or PC-CADDiN ©, at the end or 1992. the prototype of new project CADDiN © was started conceptually organized as a part of the Geographic Information System. The role of GIS in Distribution Networks Database plays a central role in the operation of planning, where analysis programs form a part of the system supported by a database management system which stores, retrieves, and modifies various data on the distribution systems. The thing that distinguishes an electrical utility information system from an other information system such as those used in banking, stock control, or payroll systems is needed to record geographical information in the database. Electrical utility companies need two types of geographical information: details on the location of facilities, and information on the spatial interrelations between them. The integration of geographically referenced database, analytical tools and in-house developed software tools will allow the system to be designed more economically and to be operated much closer to its limits resulting in more efficient, low-cost power distribution systems. Additional benefits such as improved material management, inventory control, preventiv e maintenance and system performance can be accomplished in a systematic and cost-effective manner (Z.Sumic, et al, 1993). Before graphical workstations were developed, many electric utilities have built technical information systems based on relational database management systems (E.Jorum, et al, 1993.). Technical information system is designed to cover the requirements of power supply utilities considering network expansion and operation planning, maintenance management and system documentation. In advanced utilities all information systems are built around same RDBMS and constantly updated. Establishing links between these information systems and geographical information system is only in defining relationship between objects in the two systems. The problem that has risen is in a number of different information systems in the same utility (technical information system, customer information system, etc.) or even several overlapping technical information systems and some of these a re not updated. Objective The objective of the distribution network design process can be divided into three independent parts. These parts are: Load forecasting load growth of the geographical area served by substation; determination of load magnitude and its geographic location; customer load characteristics; Design of secondary system (low voltage distribution network) optimal substation allocation and transformer sizing; secondary circuitry routing and sizing; Design of primary system (medium voltage distribution network) optimal substation allocation; primary circuitry routing and sizing; To reduce a problem complexity each part of the design process is divided in functional subproblems. Each of these subproblems can be then much easier to manage. Although only independent some parts of design process interact, i.e. placement of substation will influence secondary routing which in turn will influence primary routing. The number of possible design solutions that might satisfy a given set of spatial, technical and economic constraints is quite numerous. Multiple, interdependent goals and constraints make conventional procedural optimization methods inappropriate for distribution network design. Due to the complexity of the design process, heuristic methods and AI techniques must be applied to find near optimal [S.Krajcar, 1988] or satisfying solutions [Z.Sumic, 1993]. The main reason for this simplification is regarding work-force and computer time for finding optimal solution that in high percentage could not be applicable in real situation. [End Page 1858] GENERAL DESCRIPTION OF GEOGRAPHIC INFORMATION SYSTEM OF PROJECT CADDIN Pilot-project CADDiN was started at the beginning of 1993 as a research project inside the main research project Research and Development of Electric Power System supported by the Ministry of Science and Technology of the Republic of Croatia. The development of optimization and design procedures of electric distribution network is a parallel process with building database by Cadastral Office of the City of Zagreb, and therefore some other available examples of basic map databases are used for research purposes (see Figure 1). The strategy employed emphasized only the data composed of basic map databases for technical applications (scales of 1:500 to 1:5000). There is no unique definition for Geographic Information System (GIS) but a commonly accepted one is that it is a system with computer hardware and software functions for the spatial data input, storage, analysis, and output [T. Bernhardsen 1992]. Many textbook definitions go further and identify analysis as the one activity which differentiates GIS from other computer-based systems for handling geographic data, such as automated cartography. Modern GIS, stores information on the geometry, attributes and topology of geographic features in one relational database management system. SYSTEM 9 used in the pilot-project CADDiN is a feature-oriented GIS which organizes geography-related information into a topology-structured, object-oriented, relational database system. A project is the highest level of data organization of GIS used in CADDiN [Computervision, 1992]. It represents the entire database that has been set up for a particular geographic area for example, a town, a municipality, or a service district. It comprises two components: a data store that contains all the geographic and attribute data relating to features; and a database definition that specifies the structure of the project through feature classes and themes. Theme definition determines which features and attributes are to be used and the ways in which are to be displayed. Independently stored geometry of a feature, and its graphic representation enables position and representational data to be changed without reference to each other. The link between the geometry and the representation is provided by the theme. It comprises a list of feature classes, feature class attributes, and a link to a separate list of graphic transforms. An important safety aspect of used GIS is that it does not allow users to make changes to the database at project level. A user may only query it. The database is created and updated by means of the next lower level of data structure: the partition. This is a copied, working subset, or portion of a project. It is at this level that a user interacts with the system to enter, edit, update and manipulate data. Partitions are extracted from a project based on the type of work to be done and the data that will be required to perform that work. When editing is completed, the partition is merged into the project database, effecting the update. Partitions are created by means of a partition definition that describes the spatial extent, the contents, and the representation. The system uses the partition definition to extract the required geometric and attribute data and then allocates them into the required partition. The merit of the partition structure is that it allows different department s within an organization to work safely on the data from the same project. All geometric features in the data model are built up from geometric primitives, referred to as nodes, lines, surfaces and spaghetti. A node is stored as a set of X, Y, and optionally Z coordinates in 3D database, and might be used to represent e.g. transformers, switchgears, MV LV buses, etc. A line primitive is a geometric element defined by two end-nodes (allowing intermediate points), and might be used to describe transmission lines, cables, etc. A surface consists of one or more line segments that together form a closed polygon. A forest, lakes, parks, a portion of network, or area covered by a lot of buildings could be described by this kind of polygon. Spaghetti enables to model features where no topological structure is required. Nodes are the only geometric primitives that have coordinate information directly associated with them. Lines are not defined in terms of geographic coordinates, but by pointers to their topological nodes. Surfaces are defined by pointers to the lin es surrounding the surface. All these pointers are created and maintained automatically. Geographic objects are stored as collections of nodes, lines, surfaces or spaghetti, but they can be referred to as geometric primitives as well as some group of objects which can be identified and named in the real world roads. cables, transformers, buildings, and so on. These categories are represented by `feature classes, and the individual instances of geographic objects as `features. Such features at last consist of one or more geometric primitives. All features within a particular feature class will have the same topological structure, and the same set of attributes. Feature classes could be also identified as objects in groupings of related objects that may be established on the basis of location, spatial relationships or common attributes. These logical groupings of features are called complex features. They are defined as features that contain other features. All complex features of particular type, comprise a complex feature class. A useful application of complex feature classification would be in forming logical groupings such as MV bus, transformer, LV bus, protection devices into substation. Complex features can also have attributes associated with them (for example name, number). It would eliminate duplicating of feature attributes which properly relate to the substation. Definition of complex feature is not restricted to include only simple features as constituent components. For example, distribution network could be defined as a complex feature containing a number of substations, cables, which are themselves complex features. A strength of this approach is that it can be used to minimize the level of data redundancy of both attribute and geometric information. Users interact with the database via an object handler, and they are assisted in that interaction by a structured query language that incorporates extended spatial and reference operators. Behind analytical tools available inside GIS environment, a set of standalone functions is available from UNIX shell. This set of functions is called Application Tool Box (ATB). ATB offers an environment in which data can be managed directly, without first having to extract meaning from map representations of those data. Under this approach a user can develop analytical models according to specific requirements by integration of ATB functions, in-house developed software (C and FORTRAN programs) and shell programming. To speed up complex analysis by Development Libraries of ATB new processing functions of ATB could be developed. Applications of project CADDiN are developing by ATB functions in conjunction with C and Corn shell programs. ATB data management and viewing comprise processing functions, dataflow management and graphics viewing system. Processing functions perform the actual analysis operations on sets of data called data flows, each of which corresponds to a relational table in the database. All manipulation of data flows takes place in a special temporary work area called a clipboard. Processing functions involve the following operations: information management (i.e. selecting information from database and placing it into a dataflow, communicating with external software packages), attribute processing (i.e. generating values for attributes based on classification rules or formula), geometry processing (spatial functions union, adjacent, etc.) and arithmetic processing (i.e. calculating the area of surface entities, or length of linear entities). Dataflow management is used to create, display and delete data flows and views. Graphic viewing system allows user to see the intermediate or final results and generate a plot of those results. Compatible to ATB functions are standalone functions of Network Trace Analysis module. By those functions network tracing can be carried out using the information on network connectivity and component characteristics that are already stored in database. Special function is used for network generation that is stored as dataflow on the clipboard. On this dataflow several networks tracing functions can be performed (path optimization, range finding, path finding) or can be used by external software. As a result of that analysis a dataflow is produced on the clipboard. Original and resultant networks can be queried simultaneously. The user can keep or delete resulting data flow on the clipboard or retrieved in database. OPTIMIZATION OF DISTRIBUTION NETWORKS IN GIS Optimal Location of TS x/0.4 kV in Secondary Distribution Network The procedure for finding optimal configuration of secondary system consists of two possible optimization steps: optimization of new area secondary system and optimal connection of the particular customer(s) to existing secondary system. Regarding urbanistic plans, ecological and esthetic constraints as well as previous load growth analyses possible locations of substations are known in advance. These assumptions make planning of secondary system more simple because only routing process must be applied for several locations of substations and fixed locations of customers. The first step of routing process begins by connecting customer to the nearest routing corridor. After that procedure, the secondary system network is generated by network module. On this network any path analysis is applied and as results of analysis there are all possible connections between substation and customers. These results are used as input for external, CADDiN module of optimization of radial structured networks. During this process of optimization the set of rules is used to satisfy standard practices employed by designers. The optimized network is then saved on clipboard in dataflow and can be graphically viewed. The cost for the secondary system is mainly the capital investment cost consisting of cable laying cost and cost of cables. For each location of substation optimization process must be repeated. Solution with minimal investment costs and satisfactory technical constraints is the best regarding secondary network. All solutions that are technically satisfied must be taken into account during the primary network optimization. It is necessary because the local optimum of secondary system does not imply the optimum of primary system, and global optimum of distribution network. The optimal connection of the particular customer to existing secondary system must fulfill next two technical as well as economical constraints: the shortest possible length of connection due to voltage drop that may be permitted; reserve in load capacity of substation due to customer load. The new customer must be connected to the nearest neighbor customer satisfying previously mentioned constraints. The few nearest customers are found in a buffer zone with new customer as a center of this zone. The shortest path between new customer and possible connection node is found in two steps: both nodes are connected to the nearest routing corridor, and after that by GIS network function find best path analysis shortest path between nodes is found. Optimal Structuring of Predefined Primary Distribution Network Configuration Due to the load characteristics, requested availability and quality of energy supply two main configurations of secondary system are used in optimal planning There is a ring structure (starting and ending node is the same HV/MV substation and routing nodes are MV/LV substations) and a link structure (starting node is one HV/MV substation routing nodes are MV/LV substations and ending node is other HV/MV substation). Regarding the usage of GIS technology the optimization procedure of these two network configurations is very similar. In optimization process three different problems are considered: optimization of the new primary system; reconfiguration of the existing primary system regarding predefined structure, and reinforcement of the existing primary system with defined structure by installing additional capacity in demand nodes or including the new MV/LV substation in the network. The first problem is similar to the problems in optimization of secondary system. There must be known all possible connections and distances between HV/LV substation (source node) and MV/LV substations (demand nodes) as well as themselves. Therefore, all network nodes must be connected to the nearest routing corridor. By any path analysis and heuristic algorithms (presently genetic algorithms are tested) initial solution or zero-iteration is generated. After that by the union of GIS network function find best path analysis and other heuristic methods optimal solution is found. The second problem is more complicated than the first one because existing connections in network must be considered in optimization procedure. Otherwise, same procedures are used as in the first problem. Example of this optimization procedure can be shown in the Figure 3. In the third problem, optimization procedure is similar to the procedure of adding the new customer to the second system. Slight differences are in a way of connecting new substation to the existing network. In the primary system, regarding the constraint of reliability of supply of energy to the customer, each MV/LV substation must have a possibility to be supplied from two sides. Therefore, the nearest existing cable between two substations must be found for the connection of the new station, or the nearest routing corridor by which the new station could be connected to the nearest substations that are found in a buffer zone around it. When a better type of connection is found, solution is tested on several technical constraints (voltage drop, cable and route load, investment costs, etc.). Load forecasting of TS x/0.4 kV Small area or spatial, forecasting is the prediction of both the amounts and locations of future electric load growth in a manner suitable for distribution planning which really means with geographic resolution adequate for planning a new distribution network or extensions to the existing one. The procedure is based on dividing a utility service area into a number of sufficiently small areas and projecting the future load in each one. This is usually accomplished by dividing a utility service area into either a grid of uniformly sized rectangular cells, or into equipment oriented areas corresponding to feeder or substation areas (H.L. Willis, 1983,1992). Methods for computerized small area load forecasting, regarding their data requirements and analysis methods, fall into three categories: trending multivariate (multivariable) simulation. Essentially these methods analyze past and present load growth to identify trends, patterns, or information about the process of load growth that is then used to project future load growth. Trending methods require minimal data (they work only with historical load data, usually annual peak load) and computer resources, and are relatively straightforward in use. Because of their simplicity and generally the lowest expenses, they were the most widely used techniques in the past. Multivariate methods require considerably more data (historical loads, geographic and demographic data on customers and usage) and much more extensive computer resources, but in return they generally provide more accurate forecasts. Simulation methods in addition to historical loads require extensive and comprehensive data that include land use type, geographic and demographic data on a small area basis, transportation and other diverse factors that may affect load growth. They also require considerable computer resources and work-force. On the other hand they offer advantages in accuracy and analysis of load growth under changing conditions. Because of their complexity and requirements simulation models have been beyond the scope of many electric utilities. So far one can see that the nature of small area forecasting requires heavy use of computerized analyses and manipulation of large quantity of data. With its possibilities GIS is an excellent mean for developing and applying simulation forecast models. Of course, there is no limitation to use GIS for trending methods, at least for some very fast qualitative review, or for short range (less than five years ahead) predictions. A service zone of a substation may be defined as a complex feature which comprises parcels, buildings on those parcels, electrical connections for every building or customer, existing interconnections between customers hookups and associated substation etc. Parcels, buildings and streets are modeled as polygons, and cadastral lot code is attached to them as one of the attributes. Statistical and census districts based on approximately equal number of inhabitants and cadastral districts are polygons, too. Second very important information is address, modeled as complex feature class comprising a street name and number. Polygonal analysis and polygon processing, which is possible in GIS, and address as a common link enables the planner to determine a substation service zone and calculate its area. Via features attributes all necessary customers data (annual electricity consumption, annual peak loads, type of customers, some special requests and interfering factors, etc.) are obtainable . In that way it is possible to track amounts and sort of energy used by individual customer, or substation service area or some other region. Upon these information load densities (kWh/m ²) or kWh sales per customer can be computed. Procedure with built-in clustering algorithm detects groups (classes, clusters) of customers with similar past energy consumption behavior. For distribution load forecasting K-means algorithm [Hartigan, 1986] is recommended, with a minimum of 6-year load history [H.L. Willis, 1983]. The K-means algorithm searches for a partition, that is, a set of clusters that minimizes the total difference between small areas and their assigned clusters (the error of the partition). It works by moving small areas from one cluster to another. The search ends when no such movements of small areas reduce the error value. CONCLUSION This paper presents the concept of the pilot project CADDiN for optimization of electric distribution networks based on GIS technology. The architecture of CADDiN consists of the heuristic methods implemented within GIS and procedural programs. In such a hybrid environment, the GIS principal task is to model real world, perform spatial analyses and ensure the high accuracy of optimization procedures. The first results obtained by the prototype database and developed procedures encourage that concepts and ideas established in this paper can be applied on the real problems that exist in the distribution system planning.

An Overview Of Peptic Ulcer Disease Health Essay

An Overview Of Peptic Ulcer Disease Health Essay Peptic ulcers are one of the most common gastrointestinal tract disorders. The recent past few decades have witnessed an increase in the rate of peptic ulcers occurrence in our human community (Thompson, 1996). It has evidently been shown from available statistics that an approximated over 10 percent of the human population are extremely at risk of suffering from the disease at some point in their lifetime (Cohen, 2007). Such statistics have also identified that peptic ulcers is more common in men than in women. This is attributed by many to the higher numbers of men engaged in alcohol drinking and cigarette smoking in the society compared to women (NDDIC, 2004). A peptic ulcer is a sore wound or red erosion area on the coating lining of the stomach called (gastric ulcer) or the small intestine called (duodenal ulcer). Duodenal ulcers tend to occur between the ages of 25 75, while gastric ulcers peak between the ages of 55 and 65. Other causes which have been associated with the dis ease include infections by helicobacter pylori. This is a bacterium which is known to attack the gastrointestinal tract thus leading to ulcers. However, it should be noted that genetic factors have also been claimed to cause peptic ulcer. There are many effects of peptic ulcer in the human body. Such include recurrent pains along the gastrointestinal tract, vomiting heartburns poor appetite and weight loss among others (The American College of Gastroenterology, 2009). It should however be realized that with our modern advancements in the medical field the treatment of peptic ulcers is now effective and sufficiently reliable. Such treatments might involve medication, dictated lifestyle, dietary supplements and undergoing surgical operation depending on the severity of the condition. Peptic Ulcer Disease Peptic ulcer disease had a great effect on morbidity and mortality until the last decades of the 20th century, when epidemiological trends started to point to a remarkable fall in its incidence. In addition, two important developments are associated with the decrease in rates of peptic ulcer disease: the discovery of effective and strong acid suppressants, and of Helicobacter pylori. The treatments of peptic ulcer disease have been changed with the discovery of the causes of peptic ulcer (Malfertheiner, P. Chan, F. McColl, K. 2009). Although significant advances in sciences, this disease remains an important medical problem, because the large use of non-steroidal anti-inflammatory drugs (NSAIDs), excessive smoking, increase alcohol consumption, and life style that increase the risk of the disease. Therefore, this explains the reason for choosing this topic in order to promote healthy behavior and improve health outcomes throughout lifespan by giving attention to the preventive measures. This paper is written as a critical analysis and discussion of peptic ulcers disease. It gives a discussion on the causes and effects of peptic ulcers in the human body. Still discussed are the signs and symptoms, diagnosis, treatment and prevention of the disease as well the common types of peptic ulcers that are found in the society. Peptic Ulcers Overview First is a definition of peptic ulcer and its types. An ulcer can be defined as; an area in digestive system where the tissue has been damaged or destroyed by stomach acid and other digestive enzyme. Peptic ulcer disease is a common term for ulcers that occur either in the stomach or upper part of the small intestine. A peptic ulcer is a lesion or open sore in the wall of the gastrointestinal tract. The digestive enzyme which is acidic and is secreted by the stomach cells oxidized the lining of the stomach or upper part of the small intestine (duodenum) causing ulcer. Therefore, eroding can be seen in the mucous membrane which is lining the digestive tract. Moreover, this will lead to cause a gradual breakdown of tissue. This breakdown causes a concerning or burning pain in the upper middle part of the abdomen (Stratemeier, 2009). Even though most of peptic ulcers are small in size, ulcers average between one-quarter and one-half inch in diameter they can cause a significant amount o f symptoms and discomforts. It is to be noted here that the pain caused by peptic ulcers is recurrent and may come and go for a few days or weeks but mainly goes after eating. In addition, there are two different types of peptic ulcers namely; duodenal ulcers and gastric ulcers. Stomach or gastric ulcers is the type of peptic ulcers which mainly affects the stomach while duodenal ulcers affect the upper most part of the small intestine near the stomach. Ulcers can happen at any age, although they are rare in children and teenagers. Duodenal ulcers usually occur twice as common in men more than women. On the other hand, stomach or gastric ulcers usually occur in people older than 60 years and are more common in women (Stratemeier, 2009). It is difficult to estimate exactly how common peptic ulcers are because so many people they will not suffer from any symptoms. However, a study that tested 1,000 adults at random found that four per cent of them had a peptic ulcer (NHS Choices, 2009 ). Causes Second is a discussion on the causes of peptic ulcers. To start with, in the normal lining of the stomach and small intestines there are a protective process from auto digestion by the gastric mucosal barrier, this gastric mucosal barrier will prevent the irritating acids from diffusing back to the underlying tissue. This defensive process can stop working properly, and the lining of the stomach or intestine breaks down for different reasons. Scientific evidence has sufficiently proved that peptic ulcers are caused by the malfunctioning of the stomachs natural lining protection mechanisms against the damage effects of digestive juices (NDDIC, 2004). Such malfunctioning have been claimed to be caused by a number of factors, like is the helicobacter pylorus, a bacterial organism which is the most frequent cause of peptic ulcers. This bacterium mainly eats the protective lining of the gastrointestinal tract. This allows the digestive juice produced by the human body to damage the inner and sensitive part of the stomach or duodenum lining thus causing pain. Just to be stated here is the evidence that though helicobacter pylori is the most common cause of peptic ulcers, there are many people in our population living with the bacteria but do not exhibit signs of the disease (Thompson, 1996). Still clear is that H. pylori is believed to be transmitted through oral to oral contact, so those living in crowed areas increases ones chances of contracting the infection. Another common cause of peptic ulcers is the continuous use of painkiller drugs such as, aspirin, ibuprofen, naproxen or other non-steroidal anti-inflammatory drugs. Scientific evidence has clearly shown that such drugs are highly acidic and thus can easily lead to the wearing out of the digestive system lining (NDDIC, 2004). Still evident is the fact that this type of drugs blocks the flow of prostaglandins in the human body. It should be understood that this is the substance which is responsible for helpin g the flow of blood in the stomach and thus it helps in protecting the stomach from injury. This means that such drugs can compromise the stomach lining protection mechanism of the body and thus risking the occurrence of peptic ulcers in the body (Lanza, Chan, Quigley, 2009). Other causes of peptic ulcers include Zollinger-Ellison syndrome. This is commonly said to be a condition in which the pancreas and duodenum which are responsible for the production of gastric acid have a tumor. Such leads to the excessive production of gastric acid which is responsible for digestion of food in the stomach, a factor which might risk causing ulcers (Dugdale, D. Zieve, D. 2008). In adding together, it has been evidently noted that peptic ulcers are genetic. Therefore, if you have a family history of ulcers or the blood type O, you are more likely to get a duodenal ulcer (Shayne Miller, 2009). Still established is the fact that cigarette smoking and excessive intake of alcohol are not only a ca use of peptic ulcers but also a great threat to the efficient treatment of ulcers. Apart from the many causes of peptic ulcers, are any thing that leads to the direct damage of the digestive wall lining. Such might include physical injury or even radiation therapy. Likewise, a very sick patient who is on a ventilator support is at high risk for a condition called stress ulceration. It is here to be noted that unlike many belief, diet has not been scientifically proven to cause peptic ulcers (Dugdale, D. Zieve, D. 2008). The last and most common factor to peptic ulcers is living in chronic stress or depression (Shayne Miller, 2009). This has been claimed to lead to the excess production of digestive acids thus eating out the stomach lining. Sign and Symptoms Thirdly is a discussion on the signs and symptoms of peptic ulcers. The most common symptom of peptic ulcers is having recurrent abdominal pains which are marked with a burning sensation. Such pains are located in the upper middle part of the abdomen. Also it can be felt like burning or gnawing and it may radiate to the back. It can be aggravated when the stomach is empty, and can worse at night and early morning. Another sign is the constant experiencing of heartburns and indigestion. It is to be noted that though peptic ulcers are more painful when the stomach is empty, such are a leading cause of lack of appetite and vomiting on the individual. Peptic ulcers are also attributed to the sudden loss of body weight in (gastric ulcer) because eating does not relieve the pain and could still worsen it. Yet (duodenal ulcers) will lead to gain weight because the patient eats to relieve pain (Lanza, Chan, Quigley, 2009). Other symptoms of peptic ulcers include the following: discomfort, B loating, and feelings of fullness. Added more symptoms are, feeling of an empty in the stomach, regurgitation (feeling of acid backing up into the throat), and belching. Still to be noted is that peptic ulcers have been closely associated with chest pains and feelings of fatigue. It should however be noted that some symptoms like sudden increase in abdominal pains, vomiting of blood and blood in stool are considered as critical signs of chronic peptic ulcers. All this signs are symbolic of the possibility that ulcers have either broken a blood vessel or perforated the stomach or duodenum walls. Such could also be as a result of the blockage of food from moving from stomach into the duodenum and thus causing vomiting (The American College of Gastroenterology, 2009). Effects of Peptic ulcer Peptic ulcers have many effects in the victims life. The most common is the fact that ulcers in most cases can not be full treated. They are usually recurrent particular to alcohol abusers and smokers. Just to be stated is that the majority of people with chronic ulcers experience considerable pain and sleeplessness; this can have a remarkable and adverse impact on their quality of life (Thompson, 1996). Another effect of peptic ulcers in the body is that they can lead internal bleeding especially when they perforate the stomach lining or break a blood vessel. Peptic ulcers can cause the ultimate obstruction of the gastric outlet, stomach and intestines as well as leading to the inflammation of tissues lining the abdomen. This leads to a serious health complication which might call for a surgical operation or even death (Cohen, 2007). Peptic ulcers if not treated early enough can penetrate into other internal body parts like liver as well as the pancreas and cause severe back pain. I t has also been found out that peptic ulcers can lead to perforation of the wall of the digestive system thus leading to the spilling of digestive system contents into the abdominal cavity. Such are very catastrophic to the patients life as can lead to acute peritonitis (The American College of Gastroenterology, 2009). It should also be noted that peptic ulcer can lead to the swelling of the abdominal wall thus compromising the free flow of food in the digestion system. Lastly, it has been established that peptic ulcers are a great contributing factor in causing peptic cancer. Such could mean a lifetime health complication on the person. This is because even after undergoing surgery operation for treating the problem, it is rarely possible for the individual to fully assume his or her normal lifestyle (NDDIC, 2004). Diagnosis Owing to our modern advancements in technology and medical research, the diagnosis, treatment and prevention of peptic ulcers has been made easier and more reliable. The diagnosis of peptic ulcers mainly involves an interview by the doctor to identify the presence of the many symptoms and signs of the condition. Such include recurrent abdominal pains, vomiting and blood in the patients stool (Cohen, 2007). It should however be noted that for a doctor to qualify a patient to be suffering from peptic ulcer requires for a number of medical tests. The first is the esophagogastroduodenoscopy which involves the insertion of a thin tube attached to a camera through the patients mouth into the digestive system. This helps the doctor to see the presence of sore in the stomach and small intestine walls. It should be noted here that helicobacter pylori is the most common cause of peptic ulcers (NDDIC, 2004). It is due to this reason that the doctor might take a biopsy from the patients stomach walls to test for the presence of the bacterium. Another test which is conducted is the upper G1 test. This involves a series of x-rays on the patients abdomen and is usually conducted after the patient has taken barium (Shayne Miller, 2009). It should be understood that the doctor might also request for a laboratory test of both blood and stool. The stool test seeks to establish the presence of blood in the patients stool while the hemoglobin test checks for anemia. All this tests are conducted as a way of ascertaining the level of the condition which helps in deciding the type of medication to be used. Treatment Treating of peptic ulcers has been greatly improved not only due to our medical advancements but due to the identification of the two major causes of disease among other risk factors. The treatment of peptic ulcers is mainly conducted as a concern for eliminating the underlying causes of the disease. This is because such an approach prevents any further damage and thus reducing chances of reoccurrence of the condition. Therefore, medication is mainly given for eliminating the helicobacter pylori bacteria as well as helping the body overcoming the symptoms of peptic ulcers. Many antacids are available without a prescription, since they are the first drugs suggested to alleviate heartburn and mild digestive disorders. Antacids are not useful to prevent or heal the ulcers; however they are able to assist in the neutralizing stomach acid. When the cause for the ulcer is H. pylori infection, a three-drug course of therapy for two weeks is the standard therapy for curing. This three-drug c ourse of therapy consists of two antibiotics and a proton pump inhibitor (PPI). The most common antibiotics usually used to treat H. pylori infections are amoxicillin, or metronidazone. Proton pumps inhibitor (PPI) therapy (such as omeprazole or lansoprazole) these are drugs that reduce acid secretion by inhibiting the gastric acid pump. Other medications may include one or more of the following: Acid blockers (such as cimetidine or ranitidine) (NDDIC, 2004). However, if a peptic ulcer bleeds severely, an Endoscopy might be needed to stop the bleeding. Otherwise if the bleeding cannot be stopped with an Endoscopy, surgery might be essential. This involves the physical removal of the sores in the stomach or duodenum through endoscopy. A further surgical procedure is vagotomy which is cutting one or more branches of the vagus nerve to reduce hydrochloric acid secretion (Dugdale, D. Zieve, D. 2008). Apart from medication and surgery as ways of treating peptic ulcers, doctors usually a dvice on self-control from risk factors by the patient. These mainly include alcohol abuse and cigarette smoking as well as changes in diets. It has been evidently proved that taking of foods rich in fibers greatly reduces chances of sustaining peptic ulcers Prevention It should be noted that prevention is better than cure. It is therefore mainly advised that people avoid risk factors which can lead to peptic ulcers. In the past, it was broad way to tell people with peptic ulcers to change the way of eating habits by consuming small amount of meals, and frequent amounts of bland foods. Also people can stay away from peptic ulcers by avoiding things that increase stomach acid secretion and break down the stomachs protective barrier. These things include alcohol consumption, cigarette smoking, and non steroidal anti-inflammatory drugs along with aspirin. For preventing H. pylori caused peptic ulcers, people are advised to avoid living in crowded places, avoid contaminated water or food, and stick to strict principles of precautions as well as personal hygiene (NDDIC, 2004). Furthermore some evidence suggests that exercise may help reduce the risk for ulcers in some people. Other than, stress relief programs have not been shown to promote ulcer healin g, but they may have other health benefits (Stratemeier, 2009). In conclusion, it has been evidently established that peptic ulcers is becoming a common disease across the globe. Which can affect quite a lot of people especially Cigarette smokers and alcohol consumers. In addition the main causes of this disease are helicobacter pylori and non-steroidal anti-inflammatory drugs. It has however been clear recognized that there are many risk factor to the disease. Men are more victims to the disease as opposed to women (NDDIC, 2004). Such have been mainly attributed to genetic and hormonal composition of men as well as to the high prone rate of men to risk factors as compared to women. It was also clear that the ulcer caused by numerous reasons, and these reasons leading to several effects such as bleeding, perforation, and obstruction. However, peptic ulcers can be cured and even prevented if the patients are ready to modify their lifestyle and stick to their drug remedy. At last, the need for health educational activities is compulsory to increase the perception and awareness about the disease in the society. References Cohen, S. (2007). Peptic Ulcer Disease. Retrieved December 25, 2009, from http://www.merck.com/mmpe/sec02/ch013/ch013e.html Dugdale, D. Zieve, D. (2008). Peptic Ulcer. Retrieved November 25, 2009. from http://www.healthline.com/adamcontent/peptic-ulcer Lanza, F., Chan, F. Quigley, E. (2009). Practice Parameters Committee of the American College of Gastroenterology. Guidelines for prevention of NSAID-related ulcer complications. Am J Gastroenterol, 104, 728-738. Malfertheiner, P. Chan, F. McColl, K. (2009) Peptic Ulcer Disease. Retrieved November 25, 2009. from http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(09)60938-7/abstract National Digestive Disease Information Clearinghouse. (2004). H. Pylori and Peptic Ulcer. Retrieved November 30, 2009, from http://digestive.niddk.nih.gov/ddiseases/pubs/hpylori/hpylori.pdf NHS Choices. (2009). Peptic Ulcer. Retrieved November 25, 2009, from http://www.nhs.uk/conditions/peptic-ulcer/Pages/Introduction.aspx Shayne, P., Miller, W. (2009). Gastritis and Peptic Ulcer Disease. Retrieved December 25, 2009, from http://emedicine.medscape.com/article/776460-overview Stratemeier, M. (2009) Peptic Ulcers. Retrieved November 28, 2009. from http://www.emedicinehealth.com/peptic_ulcers/article_em.htm The American College of Gastroenterology. (2009). Peptic Ulcer Disease. Retrieved November 30, 2009, from http://www.gi.org/patients/gihealth/peptic.asp Thompson, W. (1996). The Ulcer Story: The Authoritative Guide to Ulcers, Dyspepsia, and Heartburn. New York: Plenum.

How Hitchcock Challenges Audience Expectations in his Film Psycho :: Papers

How Hitchcock Challenges Audience Expectations in his Film Psycho Hitchcock does very well in his film with censorship of film making in the nineteen fifties as he goes right to the limits of were the film is just suitable to show the nation. He does this many times in his film, one example is where Marian gets undressed and dressed. You see her bra and knickers in this scene, which is very unusual back then, it is worse than seeing nudity in films now. If Marian had taken any think else off in this scene it would have been explicit nudity, therefore not be able to be shown in the film. This is what I mean by how Hitchcock takes censorship to the limit. Some other censorship themes that Hitchcock took to the boundary was expressive kissing, swearing and brutality. Hitchcock went as far as possible with censorship to grip the audience and get more of a feel to the film. Psycho is a fifteen in England to buy on video these days because the censorship now is nothing compared to back when the film was made, a director can do basically anything now. The audience now would say it should be a twelve or lower as there is no swearing or sexual scenes and not that much brutality and parents would not mind their children seeing this. The scenes are still scary to the audience though and it would take quite an intelligent twelve year old to wrap their head round what is about and how it develops at the end. The editing in psycho is great and must have taken a week to do just one scene. It is very good for the scene and for the audience as it builds tension and creates an atmosphere. The best scene to show this as an example is the famous shower scene where Marian is murdered, whilst having a shower, by Norman dressed as his mother with a knife. There was seventy-eight separate camera set ups needed for the shower scene from the shower head, down the toilet, from the mirror, Marians How Hitchcock Challenges Audience Expectations in his Film Psycho :: Papers How Hitchcock Challenges Audience Expectations in his Film Psycho Hitchcock does very well in his film with censorship of film making in the nineteen fifties as he goes right to the limits of were the film is just suitable to show the nation. He does this many times in his film, one example is where Marian gets undressed and dressed. You see her bra and knickers in this scene, which is very unusual back then, it is worse than seeing nudity in films now. If Marian had taken any think else off in this scene it would have been explicit nudity, therefore not be able to be shown in the film. This is what I mean by how Hitchcock takes censorship to the limit. Some other censorship themes that Hitchcock took to the boundary was expressive kissing, swearing and brutality. Hitchcock went as far as possible with censorship to grip the audience and get more of a feel to the film. Psycho is a fifteen in England to buy on video these days because the censorship now is nothing compared to back when the film was made, a director can do basically anything now. The audience now would say it should be a twelve or lower as there is no swearing or sexual scenes and not that much brutality and parents would not mind their children seeing this. The scenes are still scary to the audience though and it would take quite an intelligent twelve year old to wrap their head round what is about and how it develops at the end. The editing in psycho is great and must have taken a week to do just one scene. It is very good for the scene and for the audience as it builds tension and creates an atmosphere. The best scene to show this as an example is the famous shower scene where Marian is murdered, whilst having a shower, by Norman dressed as his mother with a knife. There was seventy-eight separate camera set ups needed for the shower scene from the shower head, down the toilet, from the mirror, Marians

CJD Disease :: essays research papers

CJD Disease   Ã‚  Ã‚  Ã‚  Ã‚  The Creutzfeld-Jakob Disease is a rare brain disorder that is fatal. Reseachers find about one case of CJD disease per million each year.CJD can effect anyone, this disease effects both males and females of different ethnic groups usually between the ages of 50-75 .This disease causes progressive dementia and neuromuscular problems. Researchers still don’t know for sure what agent causes the Creutzfeld-Jakob Disease, it is a topic that has been debated about. It was first thought to be a virus but a virus contains nucleic acid and when researchers looked at the CJD agent, they found it contained no nucleic acid. Also the chemicals that are supposed to make most viruses inactive did nothing to decrease the inefficiency of the CJD disease. There is a new theory thought that seems to make more sense. The theory that the CJD disease is not a virus but an uncoventional agent made of protein. This pathogen called a â€Å"prion â€Å" are thought to transform other protein molecules into deadly ones by changing the shape of the healthy molecules to the dangerous conformation. Prions are what link CJD disease and BSE disease. Bovine spongiform encephalopathy, also know as â€Å"mad cow disease,† is believe to be caused by prions, which is believed to cause CJD disease in humans.   Ã‚  Ã‚  Ã‚  Ã‚  Creutzfeldt-jakob disease can acquired in three ways. First, The disease can occur sporadically, this is when there is no evidence of the disease in the person’s family. Most CJD cases occur sporadically, so it’s hard to find the orgins. Second, the disease can be caused by inheritance. This is when someone shows a mutation in the gene coding for a prion protein that was passed to them by genetics. The third way of aquiring this disease is through infection. Researchers are not sure if this is a true way to get the disease but some doctors have gotten the disease after being expose to the infectious material inside someone who had the disease.   Ã‚  Ã‚  Ã‚  Ã‚  There are many symptoms of Creutzfeldt-Jakob Disease as it goes on. The average time between symptoms and inevitable death is usually around one year. One symptom of the disease is a bad case of insomnia. Other symptoms include depression, confusion, personality and behavioral changes, strange physical sensations, and problems with memory, coordination and sight. As it goes on, the person develops dementia in most cases and develops irregular jerking movements.

Chad Essay -- essays research papers

Chad Chad is one of the most underdeveloped countries in the world because of its climate, geographic location, and a lack of infrastructure and natural resources. It's main cash crop that is helping it's economy is cotton, which accounts for 48% of exports.1 The industry of Chad is mainly based on processing agricultural products. It is run by a republican government and it's legal system is based on French civil law system and Chadian customary law. The recent president is Idriss Deby and head of government is Prime Minister Joseph Yodoyman Chad had gained its independence from France on August 11, 1960. Its national holiday is held on the same day every year.   Ã‚  Ã‚  Ã‚  Ã‚  The geography of Chad is mostly pastures and meadows. Chad is located in Central Africa and is between the Central African Republic and Libya. The total area is 1,259,200 km2, and the land area is 1,259,200 km2.2 The total size in area of Chad is slightly more than three times the size of California. The land boundaries of Chad are; Cameroon (1,094 km), Central African Republic (1,197 km), Libya (1,055 km), Niger (1,175 km), Nigeria (87 km), and Sudan (1,360 km).3 All of these countries total to 5,968 km. Chad is landlocked which has no coastline. It has no marital claims. The disputes between Chad and other countries is that Libya claims and occupies the 100,000 km2 Aozou Strip in the far north. The year around climate is tropical in the south, and desert in the north. The terrain is broad, arid plains in the center, desert in the north, lowlands in the south and mountains in the northwest. The natural resources are petroleum, uranium, natron, kaolin, and fish. The land use consists of arable land (2%), permanent crops (0%), meadows and pastures (36%), forest and woodland (11%), and other (51%).4 The irrigated land used is 100km2. Its environment is hot, dry, dusty harmattan winds occur in the north, drought and desertification affecting much of the south, and subject to plagues of locusts.   Ã‚  Ã‚  Ã‚  Ã‚  The people of Chad rely on agriculture for survival. The total population is 5,350,971 people. The growth rate of the population is 2.13%. The birth rate is 42.21 births / 1,000 population. The death rate is 20.93 deaths / 1,000 population. The migration rate is 0% migrants / 1,000 population. Chad's death at infancy is at a great risk at 134 deaths ... ...s. The exchange rates are communaute Financiere Africaine Francs (CFAF per US $1 - 274.06 in January 1993, 264.69 in 1992, 282.11 in 1991, 272.26 in 1990, 319.01 in 1989, and 297.85 in 1988.8 Chad's fiscal year is a calendar year.   Ã‚  Ã‚  Ã‚  Ã‚  The highways in Chad total to 31,322 km, 32 km bituminous, 7,300 km gravel and laterite, and the remainder is unimproved earth.9 Inland waterways are 2,000 km navigable. Airports total to 69. The usable airports total to 55. Permanent-surface runways total to 5 airports. The telecommunications department in Chad is a fair system of radio communication stations for intercity links; broadcast stations - 6am, 1fm, limited television service; many facilities are inoperative; 1 Atlantic Ocean INTELSAT earth station.   Ã‚  Ã‚  Ã‚  Ã‚  Chad's defense forces consist of the branches, manpower, and defense expenditures. In the branches there is the Army and the Republican Guard. In the manpower availability males age from 15 to 49, total count is 1,246,617; fit for military service 647,908; reach military age is 20 and annually 52,870.10 In defense expenditures the exchange rate conversion is $58 million and 5.6% of GDP.

Online Learning

There are debates nowadays over online learning versus traditional learning. The article titled â€Å"Why Online Education Works†. It targets on the positive aspects of online college classes. The article states that online learning changes how universities teach which in turn there are significant advantages to it. The author, Alex Tabarrok describes the advantages of online education as leverage, which includes that the college student possesses the opportunity to be taught by the finest instructors, teachers can easily access more students, it can be time-saving, and it gives the student flexibility as well as more individualized teaching. I selected this subject because I understand the importance of online education and I as well think it is a great alternative to attending class. Many students nowadays are not the conventional learner and have to work and don't possess the time to commit in a classroom because of the type of employment I do. Needing to work a full-time job without having a regular schedule can make it tough to make it to school in time, this really is a primary reason it does work best for me. There is a lot to consider when deciding which course type, online or conventional will work best for you so you must be sure you are taking into account all sides, weighing out the advantages and drawbacks. The discussion Alex Tabarrok is establishing in the article is that online learning is significantly increasing the productivity and quality of educating. The argument relies on the author's analysis regarding how there has been little change to educational institutions that had been in a position to maintain their existence and how online education can possibly reach more students. He provides examples of the drawbacks to late night classes and how fatigue generally sets in after 9:30 pm. He also offers the argument of learners not being able to retain as much when they take a night course or their instructor being as sharp as they need to be due to the fatigue. The quality of knowledge being given or what the student is retaining will decrease due to being exhausted. The student will never be giving their best and they will not be getting the best from their instructor either (Tabarrok, 2012). Alex Tabarrok claims that the learners can be taught by the best instructors online and teachers may teach students from worldwide. To support this claim he uses the example of how his 15-minute TED talk video was among his best 15 minutes of teaching and was viewed over 700,000 times. That is similar to 175,000 student hours. Though TED talks are not regarded as a course that can count toward a degree, these are totally free and we can learn from them. He compares teaching today to a stage play, and online education is more similar to a movie. The reasons used to back up the claim of quality in the instructor is because, for a movie, the actors are better compared to the typical stage actor. Movie actors are better than the average stage actor for the reason that you have more time to prepare to be sure it is your best work. This is one-way online education leverages the power of the best instructors (Tabarrok, 2012). This is often regarded as biased since he is making the assumption that an online teacher is superior to a classroom teacher. Comparing a classroom teacher to a stage actor and an online instructor to a movie star is not a good explanation. An objection referred to with online education is the fact the classroom experience provides a greater opportunity for individualized learning, Alex Tabarrok see's it as the exact opposite.His argument is because online learning may be much more customized because you are not sitting in a classroom with 100 different students, it is more one on one along with you and the teacher. You will have the chance to ask questions and interact with the professor along with other individuals through electronic mail and discussion posts. His analysis demonstrated that at Virginia Tech, classes of 100-plus are not uncommon. It can be difficult for anyone in the classroom to have a chance to ask questions due to if every student has a question to ask, you will not have any time for the lesson. An example provided is in a class of 50, in the event that each learner got a question, there would be no time for a lecture. Questions could be asked at any time and do not interfere with a session. Also, professors who teach online courses are placed to a greater slandered due to the possibility of review. Which means that errors made by the teacher through online learning are easily caught through the classroom, the likelihood is no one is going to catch it. For instance, in the event that a student asks an instructor a question in the classroom, the teacher may answer incorrectly and it would most likely never be caught however this is not the case with online courses in which everything the instructor communicates is documented. He additionally points out that when in a classroom and 20% of the class requires something repeated, 80% of the students that got it are experiencing to hear it over again while the online students are actually in power over what they need to listen to the second time (Tabarrok, 2012).The most significant benefit of online learning is the flexibility. You can focus on your assignments when it is most convenient for you given that online programs offer 24/7 accessibility to the lesson's materials. A number of individuals may do their best work in the morning while some might at night, this allows you to do your work in the course of the hours you will be most productive (Hickey, 2017). It also helps if you are working full time and can't conveniently make it to school.Although Alex Tabarrok has a credential as an author, co-author, chairperson, director of research and co-founder of the online educational platform Marginal Revolution University and Professor of Economics at George Mason University, his arguments do not possess a lot of credibilities and are biased. For example, he uses the Ted Talk comparing it to teaching which is assuming that viewing the video is the equivalent of learning. He also fails to provide any specific counterarguments in his article to compare any other side. Although he gives numerous examples to back up his reasons he fails to present outside resources to back up each of his claims. Without having outside sources, it is hard to understand if the information he is providing in his argument is reliable or not.My point of view of my alternative argument is the fact that online learning can work and does provide many advantages. My premise is that technology has a positive roll in student learning since it is convenient and you obtain faster feedback on online education. I produce this claim as a result of the e-assessments which have been carried out and the results for online learning have been positive. This argument considers the effect of e-assessments. An e-assessment is referred to as the iterative procedures of developing what, how much and how well students are learning with regards to the education goals and projected results in an effort to inform designed formative feedback and support further learning (Baleni, A.G. pg2). A number of weak points in this argument are that online education might not work for everyone and additional research needs to be done to conclude if it is in fact better.An opposing side of the argument that I notice is the fact there is an intense requirement for self-discipline and although technology can play a positive role there can be limitations also. Alex Tabarrok doesn't discuss either of them in his argument of how online education is better nevertheless I consent that this could be an issue. When it comes to self-discipline, the article mentions how meeting the deadlines for assignments and tests can be hard unless you possess time management techniques and organization skill sets to stay on top of your work. With regards to the technological innovation, you must be sure that you always have accessibility to the internet considering that for any reason your system crashes or perhaps you don't have accessibility to the web you will have a backup plan.personally, I think that as a result of online education works for me, I am can be biased. The flexibility has afforded me the possibility to continue my learning while working full time. I don't always catch on as fast as other individuals so I need more time to work on assignments and usually require additional clarification on precisely what is expected however I am still capable to get it done due to the overall flexibility. In a classroom, I don't think I would feel at ease asking questions so it is less difficult online in which the communication between learners and the teacher is mainly one on one. I want to be open-minded and examine all sides of the arguments and feel that online education will work but may not be for everybody.Basically, I feel that online learning is beneficial but you need to be very self-disciplined and make sure you stay in front of your work and be prepared for any kind of challenges you may encounter. You have to create a connection with the professor and peers and stay engaged in the discussions. It will be helpful to be computer literate making sure you are utilizing all assets provided to you by the school.My initial opinions after reading Alex Tabarrok's article was that he made many legitimate points. That was not until I conducted further research and allowed myself to step back, reevaluate and ask questions that I understood his article was way more one-sided and biased. The questions I looked at to answer were, exactly what resources did he use, was his argument based upon facts and evidence or maybe opinions, furthermore, did he offer reasons why you should support his statements that were convincing. I had to ask myself how strong was his argument and can I find leads to refute it based on evidence. I had to put in writing a number of reasons exactly why I supported his side and then the reason why I would not examine whether an individual could argue that with me. How certain was I of my argument? This assisted me to believe logically and provide you with my conclusion. I think everybody is a little biased but we have to make sure we are doing the proper research and holding an open mind. It truly is about the facts along with the proof to support the claim. Keeping an open mind and trying to concentrate on the facts and proof will help everyone greatly in our daily lives. Often we jump to conclusions and allow our emotions get in the way. I have usually said doing the right thing is normally the toughest and trying to not be biased and act on emotions can be extremely difficult. We are only human and will fall short every day, it is about striving our best to look at all sides and doing unto others as we want to be done unto us. Giving every person the benefit of the doubt. Online Learning There are debates nowadays over online learning versus traditional learning. The article titled â€Å"Why Online Education Works†. It targets on the positive aspects of online college classes. The article states that online learning changes how universities teach which in turn there are significant advantages to it. The author, Alex Tabarrok describes the advantages of online education as leverage, which includes that the college student possesses the opportunity to be taught by the finest instructors, teachers can easily access more students, it can be time-saving, and it gives the student flexibility as well as more individualized teaching. I selected this subject because I understand the importance of online education and I as well think it is a great alternative to attending class. Many students nowadays are not the conventional learner and have to work and don't possess the time to commit in a classroom because of the type of employment I do. Needing to work a full-time job without having a regular schedule can make it tough to make it to school in time, this really is a primary reason it does work best for me. There is a lot to consider when deciding which course type, online or conventional will work best for you so you must be sure you are taking into account all sides, weighing out the advantages and drawbacks. The discussion Alex Tabarrok is establishing in the article is that online learning is significantly increasing the productivity and quality of educating. The argument relies on the author's analysis regarding how there has been little change to educational institutions that had been in a position to maintain their existence and how online education can possibly reach more students. He provides examples of the drawbacks to late night classes and how fatigue generally sets in after 9:30 pm. He also offers the argument of learners not being able to retain as much when they take a night course or their instructor being as sharp as they need to be due to the fatigue. The quality of knowledge being given or what the student is retaining will decrease due to being exhausted. The student will never be giving their best and they will not be getting the best from their instructor either (Tabarrok, 2012). Alex Tabarrok claims that the learners can be taught by the best instructors online and teachers may teach students from worldwide. To support this claim he uses the example of how his 15-minute TED talk video was among his best 15 minutes of teaching and was viewed over 700,000 times. That is similar to 175,000 student hours. Though TED talks are not regarded as a course that can count toward a degree, these are totally free and we can learn from them. He compares teaching today to a stage play, and online education is more similar to a movie. The reasons used to back up the claim of quality in the instructor is because, for a movie, the actors are better compared to the typical stage actor. Movie actors are better than the average stage actor for the reason that you have more time to prepare to be sure it is your best work. This is one-way online education leverages the power of the best instructors (Tabarrok, 2012). This is often regarded as biased since he is making the assumption that an online teacher is superior to a classroom teacher. Comparing a classroom teacher to a stage actor and an online instructor to a movie star is not a good explanation. An objection referred to with online education is the fact the classroom experience provides a greater opportunity for individualized learning, Alex Tabarrok see's it as the exact opposite.His argument is because online learning may be much more customized because you are not sitting in a classroom with 100 different students, it is more one on one along with you and the teacher. You will have the chance to ask questions and interact with the professor along with other individuals through electronic mail and discussion posts. His analysis demonstrated that at Virginia Tech, classes of 100-plus are not uncommon. It can be difficult for anyone in the classroom to have a chance to ask questions due to if every student has a question to ask, you will not have any time for the lesson. An example provided is in a class of 50, in the event that each learner got a question, there would be no time for a lecture. Questions could be asked at any time and do not interfere with a session. Also, professors who teach online courses are placed to a greater slandered due to the possibility of review. Which means that errors made by the teacher through online learning are easily caught through the classroom, the likelihood is no one is going to catch it. For instance, in the event that a student asks an instructor a question in the classroom, the teacher may answer incorrectly and it would most likely never be caught however this is not the case with online courses in which everything the instructor communicates is documented. He additionally points out that when in a classroom and 20% of the class requires something repeated, 80% of the students that got it are experiencing to hear it over again while the online students are actually in power over what they need to listen to the second time (Tabarrok, 2012).The most significant benefit of online learning is the flexibility. You can focus on your assignments when it is most convenient for you given that online programs offer 24/7 accessibility to the lesson's materials. A number of individuals may do their best work in the morning while some might at night, this allows you to do your work in the course of the hours you will be most productive (Hickey, 2017). It also helps if you are working full time and can't conveniently make it to school.Although Alex Tabarrok has a credential as an author, co-author, chairperson, director of research and co-founder of the online educational platform Marginal Revolution University and Professor of Economics at George Mason University, his arguments do not possess a lot of credibilities and are biased. For example, he uses the Ted Talk comparing it to teaching which is assuming that viewing the video is the equivalent of learning. He also fails to provide any specific counterarguments in his article to compare any other side. Although he gives numerous examples to back up his reasons he fails to present outside resources to back up each of his claims. Without having outside sources, it is hard to understand if the information he is providing in his argument is reliable or not.My point of view of my alternative argument is the fact that online learning can work and does provide many advantages. My premise is that technology has a positive roll in student learning since it is convenient and you obtain faster feedback on online education. I produce this claim as a result of the e-assessments which have been carried out and the results for online learning have been positive. This argument considers the effect of e-assessments. An e-assessment is referred to as the iterative procedures of developing what, how much and how well students are learning with regards to the education goals and projected results in an effort to inform designed formative feedback and support further learning (Baleni, A.G. pg2). A number of weak points in this argument are that online education might not work for everyone and additional research needs to be done to conclude if it is in fact better.An opposing side of the argument that I notice is the fact there is an intense requirement for self-discipline and although technology can play a positive role there can be limitations also. Alex Tabarrok doesn't discuss either of them in his argument of how online education is better nevertheless I consent that this could be an issue. When it comes to self-discipline, the article mentions how meeting the deadlines for assignments and tests can be hard unless you possess time management techniques and organization skill sets to stay on top of your work. With regards to the technological innovation, you must be sure that you always have accessibility to the internet considering that for any reason your system crashes or perhaps you don't have accessibility to the web you will have a backup plan.personally, I think that as a result of online education works for me, I am can be biased. The flexibility has afforded me the possibility to continue my learning while working full time. I don't always catch on as fast as other individuals so I need more time to work on assignments and usually require additional clarification on precisely what is expected however I am still capable to get it done due to the overall flexibility. In a classroom, I don't think I would feel at ease asking questions so it is less difficult online in which the communication between learners and the teacher is mainly one on one. I want to be open-minded and examine all sides of the arguments and feel that online education will work but may not be for everybody.Basically, I feel that online learning is beneficial but you need to be very self-disciplined and make sure you stay in front of your work and be prepared for any kind of challenges you may encounter. You have to create a connection with the professor and peers and stay engaged in the discussions. It will be helpful to be computer literate making sure you are utilizing all assets provided to you by the school.My initial opinions after reading Alex Tabarrok's article was that he made many legitimate points. That was not until I conducted further research and allowed myself to step back, reevaluate and ask questions that I understood his article was way more one-sided and biased. The questions I looked at to answer were, exactly what resources did he use, was his argument based upon facts and evidence or maybe opinions, furthermore, did he offer reasons why you should support his statements that were convincing. I had to ask myself how strong was his argument and can I find leads to refute it based on evidence. I had to put in writing a number of reasons exactly why I supported his side and then the reason why I would not examine whether an individual could argue that with me. How certain was I of my argument? This assisted me to believe logically and provide you with my conclusion. I think everybody is a little biased but we have to make sure we are doing the proper research and holding an open mind. It truly is about the facts along with the proof to support the claim. Keeping an open mind and trying to concentrate on the facts and proof will help everyone greatly in our daily lives. Often we jump to conclusions and allow our emotions get in the way. I have usually said doing the right thing is normally the toughest and trying to not be biased and act on emotions can be extremely difficult. We are only human and will fall short every day, it is about striving our best to look at all sides and doing unto others as we want to be done unto us. Giving every person the benefit of the doubt.