Objective: To study the evidence on physical activity (PA) as an effective preventive strategy for depression.Methods: A search of electronic databases was performed for articles between 2007 and 2012, both original research and review articles, concerning the link between PA and depression on children, youth and adults. Three reviews, five longitudinal and two cross sectional studies were included.Results:  PA reduced the likelihood of depression in many studies and a sedentary or inactive lifestyle increased the risks for mental health symptoms such as depression. One study showed that low PA in childhood increased the odds of depression as an adult and other studies on teenagers saw a connection and mediation between PA and self-esteem whereas physical fitness showed no mediating effect. Many of the studies and reviews point out the insecurity regarding the dose-response association and the difficulties in defining causality.Conclusion: PA might have a preventive effect on depression. Some evidence exist to support that PA in childhood prevents depression in adults.

The purpose of this Masters thesis is to make an outline of different methods and theories within the field of bibliometrics and critically review their strengths and weaknesses. The author studied literature that discussed bibliometric methods and theories. The number of empirical studies that are based on bibliometric methods and theories are numerous and where principally excluded, but some empirical studies were included as part of the argumentation for and against different methods and theories. The author first gives an outline of which methods and theories there are and describes their different strengths and weaknesses. Citation analysis has many different fields of application such as information retrieval, mapping science, evaluative studies and monitoring literature.

During 2001-2002 a prototype, IMIS (Integrated Mobile Information System) was developed at BTH (Blekinge University of Technology) to demonstrate how mobile IT-systems can be used in healthcare. The prototype was based on the activity theory of Engeström. An ongoing project started in spring 2003. The purpose of the project is further development of IMIS with special focus in the diabetes healthcare. Participants in the project are scientists and students at BTH, ALMI Företagspartner, Blekinge FoU-enhet, Barndiabetesförbundet Blekinge, Blekinge Diabetesförening, Vårdcentralen Ronneby and Vårdcentralen Sölvesborg.

The purpose of this study was to examine the experience of organizational culture among salespeople at a specific workplace. The purpose was also to investigate what motivates these salespeople in their work and the impact culture has on their motivation. We have used a qualitative research method to collect the empirical material. With the help of seven interviews, including six salespeople from one of Sweden?s biggest electronic retailer and also one information interview with a sales consultant, we attempted to find the answer to how they perceive the organizational culture and how it affects their work motivation. The following questions are used to fulfill this purpose: ? How do the salespeople experience the organizational culture? ? What motivates the salespeople in their daily work? ? What effects does the organizational culture have on the salespersons motivation? As analytical tools we have used are the concept of organizational culture, Schein's description of the three components of culture and Herzberg Motivation-Hygiene theory. The results of the study indicate that the salespeople experience a positive organizational culture and that this culture promotes fellowship and unity between colleagues, which in turn contributes to an enhanced motivation.

This thesis takes on a broader perspective of the modern age phenomenon we call spam. One of the aims of this thesis is to present and to compare the variety of methods used in the day-to-day fight against spam, as far they have evolved today, but also to present and discuss some alternative methods for suggested future use. The properties of a common e-mail spam are analyzed to show how the components that make up the structure in an e-mail can be used to classify spam. Furthermore I explain the naïve Bayesian classification methods, the signature-based method, the commonly used rule-based method and the challenge and response method and discuss these. The widespread use of blacklists is also explained and a close new variant to blacklisting, Turntide is presented and discussed.

In this thesis, we are concerned with the many different professional roles that a public librarian, working at a small library, has. More specifically, the purpose is to find out which different roles that librarians believe they have, and which view they have upon those. Furthermore, we are exploring the tendencies that librarians discuss in relation to these professional roles. To pursue this goal, we have used the methodology of focus group interviews, with the unconventional twist that our interviews were done using web chats. This may have the advantage that the informants may present more honest views than when using ordinary interviews due to the anonymous character of chatting.

Ombord på moderna fartyg finns möjligheten att navigera med enbart ECDIS. ECDIS är beroende av många olika delsystem för att kunna fungera optimalt.Failure Mode and Effect Anylysis (FMEA) är ett verktyg med vilket man kan undersöka ett specifikt system för att upptäcka eventuella konstruktionsfel och brister i produktionsdesignen. Detta examensarbete har med hjälp av en FMEA undersökt ECDIS simulatorerna vid Sjöfartshögskolan i Kalmar för att ta reda på hur ECDIS påverkas när ett eller flera av delsystemen kopplade till ECDIS fallerar. Syftet med denna undersökning har varit att upptäcka konstruktionsfel, brister och begränsningar i ECDIS systemet vid simulatorerna i Sjöfartshögskolan i Kalmar. Det kunde påvisas att ECDIS i vissa fall ej har avgett de larm som enligt tillverkaren skall varsko navigatören att ett delsystem har fallerat.

In the future network-based Swedish Defence (NBD), attaining information superiority will be of great importance. This will be achieved by a network of networks where decision-makers, information- and weapon-systems are linked together. As a part of the development of NBD, we have performed a study of user interface design for a future network-based tool package for analysis of sensor systems, referred to as the C2SR-system. This thesis was performed at Ericsson Microwave Systems AB, Sensor and Information Networks, during the autumn 2002. A pre-study concerning the requirements of usability, trustworthiness and functionality of a user interface for the C2SR-system was performed.

This thesis deals with one of the main questions within information science: The question about controlled and uncontrolled vocabulary and which of the two that are most effective when it comes to retrieve relevant information from electronic databases. The method used here is literature studies. I have described and examined five empirical studies which has been done in purpose to compare the effectiveness in retrieval with controlled and uncontrolled vocabulary, in the way they are used in retrieval of information in databases. The studies I have examined have also used recall and precision as a value to measure the effectiveness of retrieval. The studies which I have chosen is also limited to deal only with studies that have been done in bibliographic databases.

För att företag ska överleva så måste de ta hand om sina befintliga kunder såväl som att attrahera nya. CRM eller Customer Relationship Management är en benämning på ett synsätt eller en strategi som används för att förbättra relationen till kunderna. När modern teknologi som Internet och e-mail används för att uppnå målen med CRM kallas det electronic Customer Relationship Management eller e-CRM. Syftet med vår studie har varit att undersöka hur företag använder CRM och e-CRM för att förbättra relationen till sina kunder. För att uppnå detta syfte har en fallstudie gjorts på Handelsbanken.

Södertörn University was built in the suburb of Stockholm to bring hope for students that aren?t used to study. Ever since the university was built there has been a debate on internet message boards such as Flashback and a discourse has developed in the recent five years. The public discourse has had a negative influence on how the university is perceived by the public. The purpose of this study is to analyze how this discourse has developed the image of the university and how it has evolved.

AbstractIn the past decades the newspaper industry went through many changes but it has never had a problem of this kind. With the freedom the Internet brings us today and the wide range of information channels, the newspaper is for the first time seriously challenged.When the newspapers began to establish themselves on the internet they thought it was only to copy the content of the newspaper on to their webpage and the advertisers would come along. This move was not planed and had no vision. When the advertisers discovered Internets wide range of advertisement platforms they started to look for other places they could put their ads. This thesis is about the local newspapers ability to address the problem that the internet has created. I based my study on the following issues:Why has internet caused this problem for the newspapers?What are the prerequisites for local newspapers when they face challenges from the internet?How have the advertisers acted after the emergence of this challenge?To answer these questions I did qualitative interviews with different personalities within the newspaper industry, two local newspaper executives and two professors in media economics. In conclusion the result shows that there are different opinions regarding these questions and different views of how to solve them.

Purpose/Aim: To identify which channels of communication are most effective in conveying consumer brands to students. The main areas of research are social media, brochures , employees, and face-to-face interaction as with job fairs, study visits and lectures.Material/Method: Group interviews, literature, electronic sources, Internet sources.Main results: The results of the study show that employees are seen as the most trustworthy source since they are thought of as the most honest. Social media are seen as the communication channel with the broadest range of information but with the possibility of appearing unproffesional. Brochures were considered to be the least effective communication channel as these are rarely read and when they are, often seem contrived and give an overly rigid impression of the company. Face-to-face communication was considered to be the most effective way to gain a professional connection but was as viewed upon with certain skepsis due to the companies tendencies to at times present a false projection of themselves at events such as job fairs.

The aim of this thesis is to contribute to increased knowledge concerning students? information seeking in an electronic environment. Using a qualitative approach; focus groups interviews, a total of nine nursing students were interviewed in two groups. The interviews were transcribed and analyzed with an analysis tool based upon Lucy Kuntz?s, Gary Marchionini?s and Carol C Kuhlthau?s models of the information seeking process.

This study is an assignment from Västerbottens läns landsting (VLL). The study?s main objective is to examine physical exercise habits and the most common motives for exercise among employees at VLL. It also compares educational status and gender differences to see if there is any significant dissimilarity regarding motives. The study is a quantitative study that used an electronic questionnaire to collect data from the respondents.