Wednesday, January 29, 2020

Applications of virtual simulation and their impact in education and training Essay Example for Free

Applications of virtual simulation and their impact in education and training Essay By replicating experiences, simulations hold great potential for educating people or training professionals for almost any task. Research shows more learning is acquired through virtual reality than through reading or lectures. Different from other visual technologies such as film, television and photography, virtual simulation is very effective in education and training because it can provide interactive experience with theories and concepts. Students learn while they are situated in the context where what they learn is to be applied. They get immediate feedback as they explore their understanding of the material (Hitlab). Virtual reality transports learners and lets them explore places they are not able to visit or experience in the real world and could also allow them to visit different places in different time periods that they could not experience in one lifetime. Indeed, virtual reality evokes many possibilities for education and training across a whole range of disciplines. Despite prohibitive costs, more and more educational institutions are exploring simulation technologies as teaching aids and research tools (Byrne, 1993). However, the benefits far outweigh the high costs of simulation technologies. For example, virtual simulation could be used to avoid the physical, safety, and cost constraints that limit schools in the types of environments they can provide for learning-by-doing. To expose them to situated learning, Nuclear Engineering students could learn more about the nuclear reactor by studying simulated models with HMD and 3D gloves instead of a real nuclear reactor. Virtual reality technology facilitates constructivist learning activities and also supports different types of learners such as those who are visually oriented. Virtual simulation could also solve the limitations of distance learning in science and engineering education by providing virtual laboratories in place of hands-on experiments. Physical phenomena that are not easily perceived or measured in usual experiments can be presented in a virtual world and can be viewed in many different perspectives in a VR laboratory. Furthermore, virtual simulation could also address the problems of high costs and hazards of complicated experiments (Kim, et al. , 2001). Figure 2. Simulation offers interactive demonstration of the AC and DC generators (from Kim, et al. , 2001) Simulations in education focus on specific lessons or tasks and allow the replication of abstract concepts and ideas. Simulation techniques are used to create a microworld that simulates an abstract concept and allows the learner to experiment or construct objects to facilitate understanding. A good example of a microworld is the Global Challenge Award online STEM learning web site that teaches science concepts related to global warming and the future of energy. Virtual simulation could also be used, for example, by an ecology to study hydrology and population growth and decay for wildlife species in a given geographic region. An astronomer could also simulate the collision of galaxies and the formation of dark matter. Virtual simulation allows professionals to explore their fields without having to run extensive and costly physical, on site, experiments (Fishwick, 1995). The use of simulation environments has been found to be very effective educational tools because they support self-driven learning (Trindade et al. , 2002). Figure 3. Interactive demonstration of different types of waves (from Kim, et al. , 2001) Multisensory immersion would be the best way for science students to learn complex scientific concepts. In a study of virtual reality physics simulation (VRPS) conducted by Kim, et al. (2001), it was found out that students who were exposed to VRPS programs that provide rich interactive learning environments showed higher academic achievement and felt more satisfaction and interest in the learning process. In another study done by Jensen, et al. (2004), it was shown that 3D visualizations can improve learner satisfaction due to the vivid presentation, and at least maintain learning efficacy.

Tuesday, January 21, 2020

James Joyces Araby - Setting and Theme in Araby :: Joyce Dubliners Araby Essays

How the Setting Reinforces the Theme and Characters in Araby      Ã‚  Ã‚  Ã‚   The setting in "Araby" reinforces the theme and the characters by using imagery of light and darkness.   The experiences of the boy in James Joyce's "Araby" illustrate how people often expect more than ordinary reality can provide and then feel disillusioned and disappointed.   The author uses dark and obscure references to make the boy's reality of living in the gloomy town of Araby more vivid.   He uses dark and gloomy references to create the mood or atmosphere, then changes to bright light references when discussing Mangan's sister.   The story expresses its theme through the setting, the characterization of the boy and his point of view as the narrator.      Ã‚  Ã‚  Ã‚  Ã‚   Darkness is used throughout the story as the prevailing theme.   James Joyce's story begins at dusk and continues through the evening during the winter, in Araby Ireland.   He chooses this gloomy setting to be the home of a young boy who is infatuated with his neighbors sister.   The boy is young and naive and he leads a dull and boring life.   Joyce uses darkness to make the boy's reality more believable through more vivid, precise descriptions.      Ã‚  Ã‚  Ã‚  Ã‚   Bright light is used to create a fairy tale world of dreams and illusions.   James Joyce uses the bright light when describing Mangan's sister, the boy's infatuation.   The protagonist is infatuated with his neighbor's sister and he imagines that he will heroically bring her something back from the bazaar.   Joyce refers to bright light when discussing Mangan's sister in order to give her a heavenly presence.   Light is used to create a joyful atmosphere.      Ã‚  Ã‚  Ã‚  Ã‚   The ending of the story is filled with images of darkness and light. James Joyce uses the lights of the bazaar to illustrate the boy's confrontation with reality.   The bazaar lights are almost all off because the bazaar is almost closed.   This is significant because the boy wants the bazaar to be bright and open, but it is dark and closed.   This is when the boy finally realizes that

Monday, January 13, 2020

Conservation of Mechanical Energy Essay

Background: Kinetic energy is said to be the energy of motion. Kinetic energy can be defined through this equation: KE=12mv2 (equation 1) Where m is the mass of the object in motion, and v is the velocity of the moving object. Potential energy is the energy associated with the forces that depend on the position of the object. However, there are specific types of potential energy and in this lab we will consider gravitational potential energy. Gravitational potential energy is the energy possessed by the objected due to earth’s gravity. This can be specifically defined by the equation: PEgrav=mgy (equation 2) Where m is the mass of the object, g is the acceleration due to gravity and y is the height of the object. With these energies defined, total energy of the system is the sum of its kinetic energy and potential energy at any point in time. Total energy= kinetic energy+ potential energy=constant Therefore the law of conservation of energy is defined as: the total energy is neither increased nor decreased in any process. Energy can be transformed from one to another, and transferred from one object to another, but the total amount remained constant, therefore conserve. Procedure: the procedure of this lab involves a dynamic cart launched up a track towards a motion sensor. Once the equipment is set, measure the angle and record. Then use the coiled spring launcher to launch the dynamic cart by transferring kinetic energy which in turn sets the cart into motion along the cart. The cart will reach a maximum height on the track before it reserve direction. Collect the date of position and time by connecting the motion sensor to data studio which will record the results as the cart as the cart is in motion. Graph position versus time and velocity versus time with the data collected from the motion sensor. Conclusion: In this experiment we observed that no energy was lost in the system, however the energy was not conserved. This can be shown by energy versus time graphs. In the theory the law of conservation assumes that there is no friction, thus conserved energy. However, in this experiment we observed the friction that occurred between the wheels of the coaster and the track, and the wheels of the cart and the track. This friction explains how energy is not conserved and also due to a small fraction of the systematic error that occurred in conducting the lab. This error can be shown in the uncertainty of the angle and the uncertainty of the position of the cart by the motion sensor. With this uncertainty taken into account, it can explain why the line was not horizontal. To conclude the experiment proves that there is no energy lost in the system due to the transfer of potential energy to kinetic, however energy is not conserved due to friction.

Sunday, January 5, 2020

Madeleine Leiningers Cultural Care Diversity Theory

Nursing theory provides the basis, or framework, of the nursing profession and helps to identify the unique qualities of the profession. Without theory to explain the focus of the nursing profession, the profession may lose direction and its understanding of new knowledge to build upon the discipline (CCN, 2014). Theories must be applied in various settings such as bedside nursing, lead nurse management, and executive management. One of the issues that our local healthcare system has been dealing with is an increase in culturally diverse patients. There has been a recent surge in Sudanese and Hispanic populations seeking healthcare. The direct care staff treating these patients need to have resources available to provided culturally competent care. This includes things such as translators, translating devices such as the â€Å"blue telephone†, and culturally appropriate spiritual care. The theory chosen for analysis in this paper is Madeleine Leininger’s Cultural Care Diversity Theory. Leinenger’s theory looks at individual patients’ with relation to their cultural heritage. The pieces of her theory include culture, culture care, and culture-care similarities and differences pertaining to transcultural human care (CCN, 2014). This middle range theory has the potential to influence nurses to provide culturally competent care to patients such as Hispanics. The writer of this paper has unintentionally used Leinenger’s theory in practice while caring for patients. ThereShow MoreRelatedNursing Theorists1257 Words   |  6 PagesNURSING THEORIES ACCORDING TO FLORENCE NIGHTINGALE, JEAN WATSON AND MADELEINE LEININGER TOLULOPE ADEDIWURA MINOT STATE UNIVERSITY ABSTRACT Nursing as a profession is based on concrete (scientific, philosophical, behavioral, social, and humanities among others), concepts and theories by past and current nursing theorists. These theorists have helped shape the profession from 19th century till date. New theories are emerging due to advance in health care, as off-shoot of previous theories and alsoRead MoreCore Concept Across Nursing Theories1346 Words   |  5 Pagesï » ¿Core Concept Across Nursing Theories Introduction The aim of this paper is to analyze and compare the Nursing Process Discipline theory by Ida Orlanda to the Interpersonal Relations theory by Hildegard Peplau. It will further discuss Madeleine Leiningers Culture Care Diversity and Universality Theory in terms of its concept statement, metaparadigms, philosophies, and conceptual model. Information on the Transcultural Nursing theory is given and how it applies to nursing. Comparison and AnalysisRead MoreEssay about Nursing Philosophy and Nursing Theory1853 Words   |  8 PagesNursing Philosophy and Nursing Theory: A Comparison of the Metaparadigm Concepts of Nursing of Nursing with Personal Philosophy and the Theory of Madeleine M. 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For instance, Madeleine Leininger developed the theory of Culture Care Diversity and Universality also known as transcultural nursing (TCN), which helps nurses to be culturally competent. There are also non-nursing theorists which can add to a nurse’s knowledge in caring for their patientRead MoreAnalysis Of Louise Leiningers Theory Of Transcultural Nursing1484 Words   |  6 Pagesnurses to understand in order to provide the best care possible with the best out comes possible. â€Å"We embrace diversity because by doing so our understanding of our world and our emotional and intellectual horizons are expanded, making us better advocates for our clients and better members of the communities in which we work and live† (Sedgwick LLP, 2011, p. 1). Dr. Madeline Leininger understood th e importance of the relationship between cultural competency and the nursing practice. She understoodRead MoreImportance Of Transcultural Nursing920 Words   |  4 PagesA patient’s cultural background is important in many ways. First, their cultural background affects the type of care they receive. Some patients choose spiritual healing over traditional Western medicine. Other cultures choose not to seek hospitalization when ill and are cared for at home. A patient must be looked at, holistic nursing views the patient this way. Cultural background is important to honor and respect if a patient is being treated in the hospital. Diversity is prevalent in the nursingRead MoreLeininger s Theory Of Culture Care Diversity1473 Words   |  6 Pages Leininger’s Theory of Culture Care Diversity and Universality in Modern Society Amy Raddatz Denver School of Nursing â€Æ' Leininger’s Theory of Culture Care Diversity and Universality in Modern Society The premise of Madeleine Leininger ‘s Theory of Culture Care Diversity and Universality is that one must regard his or her patient both holistically and with respect to the patient’s given cultural background. Leininger aims to establish a nurse-patient relationship in which communication and collaborationRead MoreUnderstanding Leininger s Theory Of Transcultural Nursing1874 Words   |  8 PagesUnderstanding Leininger’s Theory of Transcultural Nursing Garensha Cazeau Curry College April 2015 RN Transitions Professor: Sanford Understanding Leininger’s Theory of Transcultural Nursing Introduction As a young girl, I have always enjoyed being around people in their time of need as well as experiencing internal satisfaction by serving those that need my help. In my day to day nursing career, I have encountered