5-hydroxytryptamin (5-HT) is biochemically derived from Tryptophan. Kynurenic acid and quinolinic acid are also known metabolites of tryptophan. 5-HT is considered to play a role in depression and today selective serotonin reuptake inhibitors (SSRIs) are used for treatment of depression. 5-HT may also play a role in pain perception. The aim of this study was to investigate whether a supplement of tryptophan may affect conditions such as depression and/or pain.

The use of computer and video games has increased immensely over the past few decades and today a majority of the Swedish population enjoys them on a daily basis. With such a large number of frequent users, the media reporting on the subject of games becomes interesting and important. How are games represented in the media, and has there been any change in the way they are portrayed as their popularity has grown? ­The aim of this study is to determine if and how the portrayal of computer and video games in Swedish newspapers has changed during the period 1995?2012. The study was conducted with the use of quantitative content analysis and the empirical data was collected from the two most widespread newspapers in Sweden ? DN and Aftonbladet.

Det har vuxit fram en ny identitet inom resekulturen, flashpackern, som har sitt ursprung i backpackerkulturen. Denna identitet skiljer sig dock från den traditionella backpackern på olika plan. Jag antog mig att följa flashpackern jorden runt vilket resulterade i en fältstudie.Syftet med denna undersökning är att diskutera identitetsförändringar inom resekultur, som sker när samhällets struktur förändras och en ny kontext uppstår.Uppsatsen inleds med en bakgrundsdel vars syfte är att ge en förståelse till terminologin. Här förklaras hur termen backpacker samt flashpacker och även eurocentrism och en nationell aspekt på backpacking. Den andra delen syftar till att ge en teoretisk förklaring till den förändrade samhällsstrukturen och en förändring i kontext som sker i Europa och Nordamerika.

The majority of the Swedish population were self-provided within agriculture a hundred years ago. Times do change and today the situation is the other way around - most of us live within city boundaries and only few work with farming and related agricultural businesses. One thing that has not changed though, is the need of supplies from Swedish agriculture.What do we think of those products? Are we even aware of the connection between us and agriculture? The Federation of Swedish Farmers, LRF (Lantbrukarnas riksförbund), started their project to strengthen the link between consumers and producers in 2008.This paper is part of the project and its aim is to investigate consumers' views and values upon the effects and products from Swedish agriculture.Opinions and values have been studied through interviews influenced by phenomenology. The results show that the informants in general had a positive approach and thinking concerning the products and effects from Swedish agriculture.

Nature and garden have always had meaning in human's life and succesfully seen as having health giving effects. Health is a state of equilibrium between physical, psychological, social and spiritual well-being. The individual's health is depending of how the society looks and how the individual manages to live her life in it. Stress is one of our time's large public health problems and leads in some cases to burned out syndrome. Stay in nature gives recovery according to theories of environmental psychology.

Background for the research problems: Small companies are very important for the economic stability and development, something which the economic crises in recent years have underlined. Therefore it?s important to minimize administrative costs for smaller companies and also in other ways facilitate their further development. For these reasons accounting has been simplified and auditing abolished for smaller companies in many countries. In Sweden auditing for small companies was abolished nearly three years ago.

Rapporten som följer är en analys av en metod som genererar regler från neurala nätverk. Metoden heter VI-Analysis (Validity Interval Analysis) och är framtagen av Sebastian B. Thrun [Thrun]. VI-Analysis arbetar på det sättet att det neurala nätverket ses som en svart låda där endast de inputvärden och outputvärden som finns i nätverket används som underlag när regler ska genereras. Dessa inputvärden och outputvärden kommer sedan att få tillåtna intervall av VI-Analysis.

The work examines geographical variations of bicycle use in Trondheim municipality with the aim to create an understanding of what influences the use of bicycles and explain the geographical travel pattern for cycling. The work focuses on the how physical structures generates different transports effects. Where bicycle travels in Trondheim municipality are undertaken is described by using network analysis in ArcGIS, based on aggregated data from the travel habit survey (RVU) in 2009/2010. Trondheim municipality is divided into smaller geographical units (zoner) whose characteristics are described by 19 variables, categorized into 6 groups; Distance, Land use, Topography, Bicycle Facilities, Road characteristics and Demographic factors.By linear regression analysis in SPSS and ArcGIS Spatial Analyst, an explanatory model is elaborated. The variablesdistance to the regional center, workplace density, percentage separate bike paths and hilly terrain explains 78 percent of where cycle journeys are undertaken.

Syftet med denna studie var att undersöka hur personer med egenadministrerad peritonealdialys (PD) upplever sitt dagliga liv. Metoden var en intervjustudie där sju personer som behandlades med PD intervjuades med hjälp av en semistrukturerad intervjuguide. Materialet som analyserades med en manifest kvalitativ innehållsanalys resulterade i tre huvudkategorier: kroppsliga förändringar, upplevelser av PD-behandling samt egenvård. Resultatet visade att PD hade inverkan på olika plan i informanternas dagliga liv. Ett viktigt fynd var hur informanterna uppfattade att PD hade lett till vissa kroppsliga förändringar, exempelvis vad gäller vikt och aptit.

We were assigned to do this master thesis by Husqvarna AB who at the time for this thesis just had implemented a new material and production planning system called Replenishment system. Husqvarna AB wanted us to examine the effects of their new planning system to see if it was profitable or not. Husqvarna AB had for a time considered their delivery and supplier service to bee their biggest problem and they wanted to solve this problem by improving the communication with all involved actors in the logistic chain, which they hoped would result in a better mix of products in their warehouses. The aim of this report was therefor to analyze eventual effects for Husqvarna AB when changing from a traditional material- and production planing system to a more information intensive one. The result of this report showed effects on decreasing administrational routines and improved flexibility and lead-times.

The intention of this study is to investigate possible excitation on dogs due to buprenorphine treatment. The reason for it to be about buprenorphine and not any other opioid is due to its relevance being one of the most popular opioids in animal care, as well as the authors own experience with what seems to be buprenorphine induced excitation in her own dog. The study consists of a literature review and an internet based survey containing thirty questions sent out to twelve animal clinics and animal hospitals. Significant agitative effects on behavior has been found in studies on horses, sheep, goats, rats and mice, but no one shows the effects of buprenorphine on dogs. The literature on opiod effects on dog behavior seems sparse.

The Kedertruss is the loadbearing part in the Keder weatherprotectionsystem and it has been analyzed concerning its loadbearing capacity. The Kedertruss is produced and manufactured by Wilhelm Layher GmbH & Co. KG and this report has been made for their Swedish division Layher AB.  The Kedertruss, designed in Germany according to German designcode, has been recalculated concerning Swedish conditions according to Eurocodes and a ongoing European standardization project. The two-dimensional program Winstatik Frame Analysis has been used for evaluation of load effects. Capacity has been calculated by hand-calculations and it has been verified that the Kedertruss in its larger spans isn?t able to withstand the loads.

Lindex has a strong fashion position and is one of northern Europe's leading fashion retailers. Unfortunately their logotype no longer measures up to the fashion level that is required. Surveys and interviews have been conducted with employees at Lindex, disscusing their logotype. I have come to the conclusion that what is needed from Lindex side is strict guidlines for the employees to follow so that all information from Lindex to their customers is made with a great touch of fashion to it and in a coherent way..

Today there is a shortage of skilled IT-technicians in Sweden. It is approximated that Swedish companies can hire 31 000 IT-technicians in 2015 and the need seems to increase in the coming years. One proposed solution to this problem is to make programming more desirable to youths. In this study we attempt to investigate the effects of an introductory course in computer science on youths? (16-17 years old) in a classroom setting.

Background for the research problems: Small companies are very important for the economic stability and development, something which the economic crises in recent years have underlined. Therefore it?s important to minimize administrative costs for smaller companies and also in other ways facilitate their further development. For these reasons accounting has been simplified and auditing abolished for smaller companies in many countries. In Sweden auditing for small companies was abolished nearly three years ago.