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.

This essay discusses the width of the late medieval desertion of farms in Sweden from an archaeological perspective. The object of the essay is to investigate if archaeological investigations and research during the last 10-15 years have changed the view of the late medieval desertion in relation to the Scandinavian research project on deserted farms and villages.The essay also deals with questions on causes to the desertion and when desertion occurred. An ambition of the essay is also to give a general picture of archaeological investigations during the last 10-15 years considering the late medieval desertion. The analyses-material consists mainly of reports from archaeological investigations.Most of the investigations analysed in this essay are investigations of single farms. Because of this it is natural these investigations do not say much about the width of the desertion.

Vårdpersonal känner ofta stor rädsla att gå in i vårdsituationer med en döende förälder. Tidiga stödinsatser har visat sig vara av värde för barns krisbearbetning och accepterande i dessa vårdsituationer. Vården är vanligen inte anpassad för att barnen ska involveras och många föräldrar upplever det svårt att förmedla information om sjukdom och förväntad död till sina barn. Syftet med studien var att undersöka vårdpersonalens upplevelser och erfarenheter av att stödja familjer med minderåriga barn när en förälder är svårt sjuk eller döende. I form av tre fokusgruppsintervjuer intervjuades 10 personer med olika vårdyrkesbakgrund.

The aim of this study was to determine which type of fluid to use in trauma care to improve patient survival. The method used was a systematic review, where a total of 18 studies were reviewed and 13 included in the results. The inclusion criteria used in this study were Randomized controlled trial, or studies relevant for the purpose, written in English and published during the last ten years. The studies were identified in the PubMed data base. The results showed that in trauma with hypovolaemia, colloid infusion has a better effect than infusion of crystalloid fluid on blood pressure and colloid infusion reduced the body's cascade systems in a beneficial way. Colloid infusion administered to head injury patients lowered their intracranial pressure more than crystalloid infusion.

The response to many on-going or emerging conflicts since the beginning of the 21st century has been different forms of multinational complex peace operations. Civil-military relations are a commonly studied field that traditionally has its focus on nations. This study intends, in the context of organisations, to test the correlation between a civil-military approach and outcome in complex peace operations. A hypothesis has been deduced from researcher Robert Egnell?s theory on complex peace operations, that states that: UN peace operations with an integrated civil-military approach are more successful in achieving their goals than peace operations with a divided approach.

There is a strong debate in the media about the CEO compensation in the listed companies and whether they deserve their high rewards. Many previous studies have shown differences in the reward system depending on the ownership structure, mostly testing for only ownership concentration or ownership category. This study aims to investigate how the influence of the owners affects the CEO reward system, testing for both the level and the structure of the reward. The sample used in the investigation is Swedish listed corporations and consists of 251 observations. A survey was also conducted but due to low response rate and because the answers are not representative for the whole sample the survey will only be used as an illustration.

Regulation of rivers by dams and reservoirs is a good example where anthropogenic impact could be considerable both in the local environment, but also has major implications upstream and downstream. This study was accomplished as a literature study of the river Nile, which is extremely important for water supply. The purpose of this study was to investigate the consequences of the construction of the Aswan High Dam, to obtain a consistent flow for water supply, irrigation and power generation in Egypt. Since Egypt has a very hot and dry climate large amounts of water in reservoir is lost to the Nubian aquifer system and by evaporation. The consequences from constructing the dam are considerable.

The possibility and the right to be able to communicate with municipalities or other state companies and politicians are natural for the Swedish citizens. However, they may be unaware that this communication process is called citizen dialogue.Today there are so many ways to communicate; one-way communication is not possible in the same way as before. It is above all social media such as Facebook, which has opened the gates one could only dream of.  Via a medium such as Facebook creates a strong citizen dialogue in which the municipality and citizens communicate openly and ask questions and give response.The purpose of this study is to find out how Karlstad?s municipality uses, and maintains, citizen dialogue on Facebook. What are the guidelines and how do the municipality use these? In this paper a qualitative expert interview and a qualitative content analysis has been used to answer the purpose of the essay.

Who is integrating school-holiday home? It is for the teachers, recreational pedagogue or the students? How do the students think and act to keep the different activities apart?My purpose was to study how children sort the day between school and recreational home interactions. The issues were: How do they distinguish between the different activities during the day?  See the students their stay after school program as part of the school day? Who decides whether you have to go to school, and whether you have to go to after school program? And do you really have to?I have interviewed six students at an elementary school, based from a phenomenographic perspective, I've used myself of issues that students have been able to respond from a school perspective and after-school perspective. My interview questions have been comparative in nature, where the same question have given different answers depending on whether the question focused on school or the afterschool program.

This study deals with the Swedish public library in our changeable time. New technology, an altered media situation with a growing digitalization, globalization and a society focusing on the individual and the market have put the public library in a new, indistinct position. It is described as facing an identity crisis. The aim of this thesis is to, by interviewing a group of young people ages 15-16, find out what the public library is for this user group and what it ought to be according to them. How do they value the services provided by the public library? Are there services they miss? The thesis also aims at relating the opinions of the young people to earlier research.

AbstractBetween 1989-1996 and 2000-2003 a civil war took place in Liberia. During the war many, many people were killed or were forced to flee. Another of the war's characteristics was the high number of women being sexually abused and beaten by the soldiers. The aim of this thesis is to analyze to what degree the peacekeeping personnel in Liberia, foremost staff working for the UN and agencies related to the UN, have implemented Resolution 1325 in their work. Resolution 1325 was adopted by the members of the United Nations Security Council in year 2000 and aims to increase the efforts made to secure women's rights and security in parts of the world where war and crisis prevail.

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.

The aim of this study was to find possible relations between behaviour and physiology for puppies during different parts of a puppy test. This work deals mainly with the physiological part of the study. Thirtysix puppies, från five litters, were tested in a behaviour test where heart rate was measured and saliva samples were collected before and after each part in the test. Saliva and urine samples were analyzed for corisol concentration as an indicatior of stress. The tests were performed during two consecutive days in the breeders' home when the puppies were seven weeks old. In addition, heart rate and cortisol levels were also measured in the bitch since we were interested in finding out if there were any relations between physiological levels in bitches and puppies.

My essay is on the subject of teachers work environment with focus on noise and communication. In the essay questions are raised on how a teacher can influence his or hers noisy work environment. A school is a large work place with many employees and is owned and administered by the county municipality which is an even bigger workplace. How big an acting space does a teacher have in such a large organization?My methods of research on these questions have been to conduct interviews and analyzing documentation from The Swedish Work Environment Authority.

The purpose of this essay was to examine and shed light on bullying as a groupprocess, a social phenomenon taking place in a school setting, to increase the understanding of the phenomenon. A theoretical overview of the litterature on bullying was made to investigate bullying and to give the reader a view of the researchfield. A total of 77 articles was studied. With the intention of studying bullying from a groupsychology perspective a metaanalysis was performed discussing groupphenomenon such as rolebehavior, responsibility, cohesiveness and norms in comparison to bullying episodes.Stemming from this analysis the question whether bullying can be view as a response to groupthink emerged. This question also constituted the secondary aim of this thesis.