The aim of this thesis was to examine if it is possible to keep nitrogen in the form of nitrate(NO3-) in ponds from one season to another by keeping a high concentration of oxygen in thepond water. This hypothesis was tested by doing a lab experiment where two systems werecompared according to nitrate concentration. One system had high concentration of oxygen inthe water and one had low concentration of oxygen. Before the main experiment wasconducted I did a pilot study to test the system setup and included parameters. The result fromthis study and the main study did not show the same result.

The study is divided into three parts ? the development of wage labour towards becoming the dominant norm in society, how this norm is challenged in a specific geographical context, and lastly a study of two unemployed individuals and their everyday activities, what and especially why certain behaviour occurs. The main purpose with the text is to study unemployed people in a specific geographical context in a overall society where wage labour is thought to be the norm. Questions that is being asked is how the unemployed individual works in a society where wage labour is the dominant activity for the day. This is connected to a study of Möllevången, a district of Malmö, where the wage labour norm can be thought of as being challenged.

Sustainable development is often pictured as containing of three interlinked dimensions- namely environmental, economic and social. ?Social sustainability? is a vague concept that is often thought of as highly context-dependent. This thesis sets out to investigate the meaning of ?social sustainability? in a given context.

The aim of this Masters thesis is to understand how librarians develop their reference service. The purpose was to find patterns in how librarians work with reference questions. As a theoretical framework we have used research in the reference field. Where do the skills of the search process come from: education or experience? Answers were sought to the following questions: - How different are the search process in practice compared to theory? - Which similarities and differences are there among the informants? - How important was the education in comparison to the knowledge about the libraries collections? - How did the changes in the school system in 1993 influence reference education and what could the consequences be to the reference knowledge among librarians? We sent out a question form and a search question which was answered by 12 librarians in university and university college libraries.

Den här rapporten beskriver arbetet och utförda studier inom området kryptering och VPN. Fokus ligger på hur väl krypteringsalgoritmerna Triple Data Encryption Standard (3DES) och Advanced Encryption Standard (AES) skalar i en förutbestämd miljö. Huvudfokus har varit att svara på frågan: Vilken av krypteringsalgoritmerna AES och 3DES kräver minst systemresurser? Under utbildningstiden har det flera gånger framförts att 3DES-algoritmen skulle vara mer krävande för krypteringsenheterna att utföra jämfört med AES. Denna rapport söker finna om det är så det förhåller sig och i så fall hur stor skillnaden är mellan algoritmerna.

This master thesis is an attempt to study the interface in itself, where the human meets the machine and the problems that can arise. I study a particular interface, namely the OPAC of Libra III. In 1999 IFLA presented recommendations for what an OPAC shall contain, and in one part of my master thesis I compare Libra III with these recommendations from my opinion. In another part of my master thesis I make an investigation where I let five by me chosen persons answer some questions from me, both by doing and verbally. I draw the conclusion that Libra III follows most of the recommendations of IFLA in a sufficient way.

Undersökningens huvudsakliga syfte är att ta reda på hur elever uppfattar experiment och laborationer inom ämnet fysik. Ett annat syfte är att kartlägga elevuppfattningar om grupparbetet inom det laborativt arbete som kan ha betydelse för elevens aktivitetsgrad och lärande. Som grund för detta examensarbete har vi använt oss av en kvantitativ enkätundersökning som genomförts på 250 elever i grundskolans senare årskurser och gymnasieelever som läser natur eller teknikprogrammet. Resultatet av undersökningen visar att eleverna tycker att det är intresseväckande med laborationer, de ser till viss del kopplingar mellan deras vardag och fysikundervisning och de tycker att de lär sig mer genom att laborera. Dessa uppfattningar stämmer väl med vad didaktisk forskning anser vara syften med laborationer..

Every year 120 children with Downs Syndrome is born in Sweden. The aim of the study was to investigate if there were any differences between mothers and fathers of children with Downs Syndrome regarding: experience of support from health care personnel and physicians in the time of delivery and from who parents sought most emotional support.Participants of the study was 80 mothers and 79 fathers that answered a questionnaire. There was a difference between parents if they thought they received support from health care personnel, mothers (59 %) and fathers (38 %) thought that they didn?t receive support. Emotional support sought mothers (52 %), in grater wideness then the fathers (23 %), with other families with handicapped children.

This thesis aims to explore how musicologists reason about publishing their articles in open-access journals. What is the challenge they face and what are the possibilities musicologists are concerned about? For the method I used open-ended and structured interviews based on four factors: trustworthiness, accessibility, reaching the readers and status of the publishing media. Musicologists are positive to the open-access concept and are willing to submit their papers to open-access journals. They think that the accessibility of the articles is going to increase when they publish them in open-access journals.

When protection zones for wells are delineated, it is important to acquire good knowledge about possible travel time from different points in the catchment area to the well. Often, simple analytical methods are used for estimating travel times and the assumption is made that the hydraulic conductivity is relatively homogenous within the aquifer. Nevertheless, many aquifers are strongly heterogeneous which may lead to differences between estimates and actual travel times. As a part of the process to develop improved methods for delineating protection zones for groundwater supply wells, a tracer experiment was performed in a glaciofluvial esker formation in Järlåsa. On the basis of the experiment, a numerical flow model was created for the test site.The purpose of this master?s thesis was to apply the flow model to an aquifer where the hydraulic conductivity shows great variability and should be described by a stochastic distribution.

Målet med detta examensarbete är att ta fram ett gränsnitt för navigering i stora datamängder samt undersöka eventuella styrkor och svagheter hos detta gränsnitt. Bakgrunden till projektet är att företaget Analog Software utvecklar ett system som automatiskt skall klassificera objekt i en datamängd och sedan presentera denna klassificerade datamängd.Gränsnittet skall stödja en informationssökningsstrategi som benämns ?browsing?. En teknik för visualisering av information som varit framgångsrik är den så kallade ?Fisheye-tekniken? som baseras på en analogi med en vidvinkellins.

The aim of the study was to describe how patients experienced communication, treatment and costs at the dental hygienist program at Högskolan Kristianstad. The study was based on a questionnaire that was made at the patient clinic. The questionnaire was conducted by the treating dental hygienist student after the treatment. The questionnaire was answered in the waiting room. Collection of the material occurred during the month of March in 2009.

Syftet med denna studie är att undersöka hur olika storlekar på modeller i reklamsammanhang påverkar köplusten hos konsumenter. Utifrån kriterierna reklam, kroppsideal och kroppens verklighet har vi utvecklat en teoretisk modell för att få en klarare bild av relationen mellan dessa tre. Vi lägger fokus på att undersöka om konsumenter föredrar att identifiera sig med modeller eller hellre ser dem som ett ideal. Vi har i undersökningen avgränsat oss till såväl kvinnliga modeller som konsumenter. För att undersöka detta har vi valt att använda oss av experiment och fokusgrupper som består av kvinnliga respondenter i åldersgrupperna 17-35.

The purpose of this study was to describe and analyze youth community service in the Kalmar municipality. Our focus was on juvenile offenders and predecessor of public authorities. The juvenile offenders in our study have completed youth community service. A qualitative study was undertaken which include seven interviews. Our empirical data were compared and analyzed with previous research data.

Purpose: This study examines pedagogues? thoughts about children?s understanding of death, and their reactions to the death of a relative. The aim is also to examine pedagogues? thoughts about their part in supporting bereaved children, and how they wish to do so. Method: Seven pedagogues, who work with six to nine year old children, were interviewed.