Sökresultat:
2220 Uppsatser om NASA task load index - Sida 47 av 148
Lycka: nyckeln till en önskvärd socialpolitik - en begreppsanalys
This essay deals with the same task that utilitarians have tried to solve for a long time, what is happiness? In the eighteenth-century utilitarians suggested that happiness should be the base for social political decisions. But the lack of definition disposed so that GDP became the measurement of happiness, which proved to be wrong when the unhappiness continued to increase. More than two hundred years later scientists came up with a new definition of happiness and new ways to measure it. And during the last decade economists have taken the discussion to a higher level.So once again we?re dealing with the same old issue, if happiness ought to be the base of social political decisions.
Return Behavior of Initial Public Offerings and Market Efficiency
This paper is an event study on Initial Public Offering?s return behavior after the dot com bubble. Cumulative Abnormal Returns are used to measure the performance against a market index. The results suggest that the market correctly prices IPOs in the long run thus upholding the Market Efficiency hypothesis. Moreover, value weighted CARs show that large IPOs are more likely to outperform smaller IPOs, however in the long run there is an unpredictable pattern.
Konstruktion av ränndalskap CPD08
Our Bachelor?s Thesies has been performed in co-operation with Cellplast Direkt AB inLaholm. Our task was to develop a construction that cuts gussets to ceiling disposition as isused to isolation.Our goal with our construction was to increase the degree of automation so that theproductivity increased and also meet the market which is getting tougher and tougher due tothe future business cycle.Cellplast Direkt gave us free hands in order to enable new ideas. A pair different principleproposal was developed and prepared to a final structure.The Bachelor?s Thesies resulted in one PLC - governed machine with three engines that runthree different moves, wich does that the degree of automation increases and the risk forerrors decreases.We have developed a complete production bases to Cellplast Direkt and our hope is that thecompany comes to produce the machine in the future..
Kampen mellan etablissemang och näthatare - En studie om näthatsdebatten
This essay examines the Swedish debate on Internet hate with focus on theories concerning Internet as a public sphere, sociocultural turbulence and subaltern counterpublics. Examining material fromnewspapers, alternative news media and discussion forums, with an hermeneutical influenced method, the task is to understand the Internet hate debate, and the study wishes to discover its relations to biggercontexts, such as social transformations and power dynamics. The conflict evolves between the establishment (journalists, writers, politicians et cetera) on one part, and Internet ?haters? on the other.The examined theme also shows a conflict where the two combatants show not only two opposite views on what Internet hate is, but also shows two different conceptions of the world..
Förmedlingen av skönlitteratur på folkbiblioteket
The aim of this thesis is to study how librarians in Swedish libraries perceive the task of mediating fiction. What are the librarians private relationships to fiction and how do they perceive the position of fiction in contemporary society? What views have they developed of the borrowers approach to fiction and how do they perceive the borrowers increasing influence in the library? How do librarians prioritise and which principles form the basis for their purchase of fiction? How do they categorise fiction in the library and how much do economic and political factors influence the decision making process for the purchase of fiction? Finally, how do they define their roles as mediators of fiction and which strategies do they adopt to communicate which literature the library has to offer? The material used in this study was acquired using a qualitative interview technique in which six librarians with experience of literature mediation partook..
Jämförelse av olika metoder att generera Bernoullifördelade slumptal givet deras summa
In this master?s thesis the problem of simulating conditional Bernoulli distributed stochastic variables, given the sum, is considered. Three simulation methods are considered, namely the acceptance/rejection technique, Bondesson?s method and the Markov chain Monte Carlo method.To compare the three methods the bias and the standard deviations of the simulated variables are evaluated. The results of the simulation study shows that the Markov chain Monte Carlo method is not the best method for this type of simulation.
Kompensering av reaktiv effekt vid vindkraftverk
Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.
Utveckling av 300 kg HD Lightlift för belysning och liknande laster
The company LightLift Esystems AB manufactures patented motorized lift systems for the illumination of halls with high ceilings. The company wants a new design for singular heavy lights in order to be more competitive.This project consists of the development of the new design under the requirements and specifications imposed by the company. The new design must support lights up to 300kg and keep the overall dimensions as low as possible without modifying the driving unit.This document contains all the designing steps followed to reach the final solution as well as the material selection, manufacturing process and assembly of all the parts that form it.The solution obtained shows to be very competitive with other alternative products, since this new design triples their maximum load capacity while the dimensions are very similar.In this context, the optical appearance was also very important to the company and so it was another main objective of this project. From an aesthetical point of view, the final solution proves to be very compact and versatile since it can either be hidden behind a false ceiling or covered by a plastic case that gives the design a very nice look.Finally, the solution achieved fulfils all the requirements and specification previously imposed. It is reliable, compact, cheap to manufacture, easy to assembly and it has a good optical appearance. .
Hemma bra men borta bäst? : En studie om svenska och ryska hedgefonder
Purpose: The purpose of this study is to examine the difference in return between Swedish and Russian hedge funds while considering the risk taken.Method: This study is based on quantitative data on funds' historical returns from the electronic database Morningstar.se. Additional data is taken from the funds websites, the Swedish National Bank and Fondbolagens förening.Result and conclusion: All hedge funds, both the Russian and Swedish performed better thanthe index. The Russian hedge funds nevertheless performed better than their Swedishcounterparts in all three evaluation methods..
Finns det genvägar för bearbetning av hotstimuli
För att undersöka resursallokering av processresurser vid informations-bearbetning av hotstimuli har ett ?Dual Task? experiment utförts med spindelrädda försöksdeltagare. Uppgiften bestod av att respondera på olika probe-stimuli som exponerades, direkt på bilder av olika djur (däribland spindlar), med olika tidsintervall. Latens och träffsäkerhet mättes, för ett mått på prestation, och EKG användes för att kontrollera att spindel-bilderna faktiskt utlöste rädsloresponser. Resultaten visar att större processresurser allokerades till spindelbilderna jämfört med alla de övriga bildkategorierna, men att denna differentiering inte verkar ske innan en kognitivt kontrollerad bearbetning och utvärdering av stimulus ägt rum.
Överreaktion på aktiemarknaden - Myt eller verklighet?
PurposeThe purpose of this paper is to assess whether the overreaction found in ?Does the Stock Market Overreact?? by DeBondt and Thaler still persists today, and by equivalence test if a trading strategy based upon these assumptions would generate abnormal returns. MethodThe research has been carried out by studies of the stocks that for a prior period of one year has over or underperformed their benchmark. The stocks used in my study are all part of S&P500 index, and the period of study runs from three to five overlapping years over the last twenty years. ResultsMy tests indicate that the type of overreaction proposed by DeBondt & Thaler still is present, at least considering the stocks that during the formation period were winners..
Havanna Viejas Trädgårdar : En lösning på urban matsäkerhet
High oil prices and bad harvests have led to dramatic increases in food prices and are nowthreatening millions of people in densely populated cities all over the world. To ensure thatthese people will have enough food without compromising the needs of future generationswill be a demanding task for politicians and decision makers. ?is paper has shown thatHavanas urban gardens have increased urban food security since the hunger crisis thatoccurred a?er the fall of the Sovjet Union in 1989, and that they support the thesis of Amartya Sen and the Ryerson University. Urban gardens can be a good example for cities how to avoid hunger and famine if they are properly managed.
Immunohistochemical detection of thymidine kinase 1 in canine mammary tumors and lymphomas
The dog has often served as a model animal for humans in scientific studies. This is due to the fact that dogs are susceptible to a wide range of diseases which also affect humans. One example is cancer, a condition that affects dogs as well as owners. Neoplastic diseases account for 18-23 % of all deaths in dogs (Bonnet et al., 2005 and Jagielski et al., 2002).
Mammary tumor, or tumor of the breast, is the most common tumor form in intact dogs and women (Im et al., 2013). Mammary tumors originate in the udder, and are classified according to their histological characteristics.
Design och konstruktion av sparkcykel för sommar- och vinteranvändning
This thesis has been carried out in collaboration with the IT Company MPQ consulting AB in Halmstad. The task we were assigned by MPQ concerned the development of a scooter that can be used year round. We have with the companydeveloped the criteria and requirements for the product in which the goal is toproduce a primary solution that meets the set criteria and fall within the project'sboundaries.The project involves a wide range of different design methods for idea generationand idea development. The project also addresses engineering methods such asprinciple and primary engineering. Occurringmethods in the project include FredyOlsson principle and primary engineering in cooperation with SVID's - Swedishindustrial design process, etc.The final solution will be presented in the form of sketches, CAD models withassociated drawings and a rendering from the program Keyshot..
Textens inverkan på matematiska uppgifter : En undersökning om elevers textförståelse av matematikuppgifter i årskurs 5
The purpose of this study is to show the importance of task texts for students in grades 5 when solving mathematical problems. It was conducted in a class 5 (where the children are 11 years old). The pupils were assigned two different tests with mathematical problems; one where the problems were described in text and one where the problems were presented with numbers and mathematical signs. Previously done research, done on bilingual children, (Bernardo, 2002) shows that pupils tend to do better on mathematical tests when no text is presented. My research supports that theory even though the correlation is not that strong.