Ett par av de trick som används i virtual reality för att få 3D-världen att verka mer levande är stereoskopi och ett dynamiskt perspektiv med head tracking. Tidigare undersökningar har visat att head tracking har större effekt på 3D-upplevelsen än stereo [1], i alla fall när bilderna visas på en vanlig datorskärm. Den här undersökningen har försökt att ta reda på om samma sak gäller då den virtuella världen projiceras på en horisontell bordsskiva. Intressant nog går resultaten från det genomförda experimentet tvärt emot all teori. Tyvärr kan inga konkreta slutsatser dras eftersom alltför många felkällor har uppmärksammats, men studien öppnar ändå upp för framtida forskning..

Trots att halloween som festsed saknar historisk förankring ur svenskt perspektiv, har den i Sverige mycket snabbt fått bredare spridning i och med att allt fler människor deltar i firandet. Så finns det andra som känner motstånd och medvetet väljer att inte delta. Oavsett uppfattning finns oftast underliggande grundantaganden som utgör en slags bas för individens sätt att se, vilka jag vill ?synliggöra?. Frågan som uppsatsen söker besvara är svenskars argument för och emot halloween.

The first company to send TV-commercial was the American company NBC, it was in the year of 1941. In Sweden, TV-commercials were first shown in 1987/88. TV 4 was the first channel to send commercial in Swedish television.TV has the advantage of showing both sound and picture, which makes TV the strongest channel of communication to mediate a message between a company and the consumer. Although TV-commercial is the most expensive choice to mediate a message, it is also the most effective one. (Persson, 1993)Almost everyone is exposed to TV-commercial daily.

Abstract A central problem in all language teaching is to teach the correct use of prepositions. There are grammar rules, but also a lot of exceptions and idiomatic expressions that often have to be learnt by examples or by heart. A trick for learning might be to use a mnemonic method with songs and music to memorize a correct use of prepositions. The purpose of this study is to test a language teaching didactic exercise for knowledge of preposition in Spanish with songs and music. Grammatical aspects, rules and exceptions when studying prepositions in Spanish are presented.

This essay highlights the Swedish retail companies? engagement in ethics and environment issues as a part of the business concept. The Customer is today more aware about what is going on in the world than ever before. Two of the main reasons are the Internet and the globalization. In relation to the customer being more aware about the situation in the world today, the demand for products which have been produced in consideration of ethical and environmental values has increased.

The thesis hears content-error in relation to agreements closed by electronic means. The purpose of the thesis is to elucidate how the rules in 32 §(1) AvtL apply to agreements closed by such means and to evaluate its suitability. The elucidation is done on the basis of, the rules? adequacy in relation to their objectives in collaboration with a comparative view on a selection of international legal framework under private law, such as DCFR, UNCITRAL Model Law, UNIDROIT Principles and CISG.Since Sweden lack a specific regulation for electronically closed agreements, all modern closing methods will be evaluated from the dated outlook of the Swedish Contract Act. In relation to entirely automated processes which results in the closing of an agreement, particular difficulty arise in correlation with prerequisites, which requires a human stance.

Barn kommer i kontakt med hälso- och sjukvård för olika mer eller mindre smärtsamma procedurer. Minnet av tidigare obehagliga erfarenheter kan ofta skapa rädsla inför framtida besök och risk för bestående sjukvårdsrädsla. I många studier beskriver barn att nålstick i huden är en av de mest smärtsamma procedurerna inom sjukvården. Samhället har ett ansvar och det finns reglerat genom lagar hur barn skall bemötas inom sjukvården. Barn i skolåldern har ofta en livfull fantasi och magiskt tänkande och upplever smärta annorlunda än vuxna.

This study is about how changed light conditions induce dormancy in plants. It is divided in two parts. First a literature study where quantification of light, the concept dormancy, photoperiod and light quality are discussed. Second an experimental part, where the importance of light for sprouting capacity in root buds of perennial sow thistle (Sonchus arvensis L.) is investigated.In the science in how flowering in plants are induced the concepts short day/long day plants and light dominant/dark dominant are well-established. These concepts can also be applied to how light induce dormancy in plants.

?The management of innovation is inherently difficult and risky, most new technologies fail to be translated into products and services, and most new products and services are not commercial successes. In short, innovation can enhance competitiveness, but it requires a different set of management knowledge and skills from those of everyday business administration? (Bessant et al. 2005 p.