The structure and performance of grocery distribution in Sweden has changed profoundly since the second world war. Increasing access and usage of the private car, in combination with an accommodating town planning has enhanced the exploitation of scale economies within distribution firms. There is, however, some ambiguity concerning the overall efficiency of the distribution system when the costs associated with travelling and purchasing performed by households are treated as an integrated part of the total distribution cost function. The purpose of this master thesis is to develop the foundation of a spatial optimisation model, which defines the most efficient distribution system. The underlying idea is that the optimal localisation and size of grocery stores is a function of economies of scale within the firms weighed against distributions costs within the households, such as transportation costs.

Introduction: In the past years children in primary school age has become increasingly sedentary. One of the school nurses' main task is to provide tools for students to make healthy choices. During the health visit, the school nurse gets the opportunity to inform and talk about health and physical activity with the students.Aim: To describe how shool nurses? work to motivate students to physical activity.Methods: The authors have conducted a pilot study that will form the basis for a large-scale study. Four nurses were interviewed using an interview guide based on open-ended questions and a qualitative content analysis was used when the interviews were analyzed.Results: The analysis revealed two categories and four subcategories.

A growing number of cities and municipalities in Sweden begin to work with city models in 3D. For the most part the models are used for visualizations of ongoing planning processes, but also for the analysis of noise, shadow studies and environmental disaster simulations.Gothenburg continues to develop the use of 3D maps in municipal operations and is demanding a way to create building elements (walls), which generates in 3D buildings, from roof constructions that are mapped from the primary map. A method has been investigated in the present study. The results are then presented as a 3D model of buildings, along with a terrain map that will facilitate the localization of the area. The created 3D buildings are then compared with roof-data from the primary map to see how well they harmonize with each other.

Stress är idag ett område som är allt mer omdiskuterat och anses ha inverkan på den psykiska hälsan. Många studerande på universitetsnivå upplever någon gång under utbildningen stress, och detta kan bland annat förklaras utifrån tidspress, ny stad samt ekonomi. Syftet med denna studie var att ta reda på huruvida stress hos studenter kan förklaras utifrån self-efficacy och fysisk aktivitet, samt om det finns någon skillnad i upplevd stress mellan manliga och kvinnliga studenter. Det var 76 av 92 tillfrågade studenter som svarade på hela enkäten (39 män och 37 kvinnor) som innehöll två standardiserade tester, General Self-Efficacy Scale respektive perceived stress scale. Resultatet visade ett signifikant samband mellan variablerna stress samt self-efficacy.

I dagens samhälle drabbas ett större antal individer av en hjärtinfarkt varje år. Bland de vanligaste komplikationer som kan uppstå efter en hjärtinfarkt är depression som kan leda till återinsjuknande eller för tidig död. Syftet med denna litteraturstudie var att studera vilka effekter rehabiliteringsprogram har på patienten efter insjuknande i hjärtinfarkt samt se om de minskar graden av depression. Metoden var en systematisk litteraturstudie som utgick från åtta kvantitativa artiklar som kvalitetsbedömdes enligt Goodmans sju steg. Den teoretiska referensramen som användes utgick från Carnevalis modell Dagligt Liv ? Funktionellt hälsotillstånd.

This project is a literature study with the hypothesis that Arctic climate has a positive effect on the accumulation of metabolites in berries. Plant metabolites are often divided into primary and secondary metabolites. Primary metabolites such as proteins and nucleic acids are essential for cell function, while secondary metabolites are often non-essential, but have important functions regarding reproduction and survival. The berries mentioned in this project are from the families Ericaceae, Rosaceae, Elaeagnaceae och Grossulariaceae.The conclusion drawn from this literature study is that it is not obvious what favours accumulation of metabolites in berries. Other factors aside from climate affect the production of secondary metabolites, such as time of harvest, cultivars and ripeness.

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Syftet med studien var att ta reda på om det går att predicera medarbetares livstillfredsställelse, psykosociala välmående och upplevd relation till närmaste chef utifrån chefers emotionsperception och emotionsreglering. Detta gjordes genom att 38 chefer utförde ett datorbaserat emotionsperceptionstest samt besvarade Emotional Regulation Questionaire. Deras närmaste medarbetare bestående av totalt 213 stycken fick sedan besvara en enkät bestående av delar från Satisfaction With Life Scale, SF-1 och QPS Nordic. Studiens huvudresultat visade att generaliserat kan resultatet från emotionsperceptionstestet och det självrapporterade användandet av omvärdering av känslor hos chefer förklarar 28 % av skattningarna på Satisfaction With Life Scale hos medarbetarna. Resultaten diskuteras i termer av att chefer skapar en positiv atmosfär på arbetsplatsen, identifierar sociala problem och löser konflikter effektivare när de är skickliga på emotionsperception och omvärderar sina känslor..

Background:There are future challenges for public health and health care in meeting the needs of a growing and ageing population. Today there are evidence of how arts can contribute to health development and of the connections between arts, health, treating and rehabilitating measures. To be able to meet the future challenges there is a need for new methods, perspectives and views about how to stay healthy, enjoy our existence and for wellbeing. Health care has an important role in rehabilitation through the broad contact with the population. The background of the essay is the pilot project Arts on Prescription that was carried out in order to try a new way of rehabilitation with arts as a factor.

Syftet med undersökningen var att studera huruvida psykologiska faktorer påverkar skaderisken för elitfotbollsspelande damer. Detta inkluderade också att undersöka sambandet mellan dagliga stressorer och uppkomsten av idrottsskador. Totalt deltog 42 kvinnliga fotbollsspelare i åldrarna 16-25 år. Via en prospektiv design inkluderades en förmätning med hjälp av enkäterna LESCA, SSP, Fotball Worry Scale samt Brief COPE. I tretton veckor fyllde sedan deltagarna i enkäten Daily Hassle Scale.

The aim of this study was to examine how the interviewed primary teachers in two schools situated in the Stockholm area understand themselves as teachers in relation to their image of the good teacher. The research questions were: How do the informants discuss their image of the good teacher? How do the informants describe their own role as a teacher?A qualitative method, by interviews made with four primary teachers, was used to collect data for the examination. The results from the interviews were analyzed and discussed from the theories and earlier research concerning the role of the teacher and what they describe as the good teacher. The theoretical connection of this study was based on the theories of Vygotsky, Piaget, Bruner, Dewey, Dreikurs, Kounin and Glasser concerning the relationship between the role of the teacher and learning.

Bakgrund: Prostatacancer är den vanligaste formen av cancer bland män i Sverige. Att få en cancerdiagnos innebär stress för både patienten och dess partner.Syfte: Syftet med denna studie var att undersöka grad av stressreaktioner i form av undvikande beteende och pa?trängande tankar hos patienter med prostatacancer och deras partner. Ytterligare ett syfte var att kvalitetssäkra mätinstrumentets formulering och svarsalternativ.Metod: Arbetet var en kvantitativ tvärsnittsstudie. Datainsamlingen gjordes med hjälp av enkät ?Impact of Event Scale? (IES) samt en enkät utformad enligt ?The Question and Answer Model? (QAM) för att kvalitetssäkra IES.

This master thesis has been performed at Vattenfall Power Consultant in Gothenburg and Trollhättan for Vattenfall Vattenkraft. In this report vacuum circuit breaker in small-scale hydropower stations with the rated power 4 MVA and below has been studied. Models of the stations are modeled and analyzed in PSCAD/EMTDC to study the high voltage transients that are created after current chopping with vacuum circuit breaker. Vacuum circuit breaker may chop the current before it reaches zero value, which means that high voltage transients can be created. The equipment of the stations can be destroyed by high voltage transients.The purpose of this thesis is to examine the use of vacuum circuit breaker in small-scale hydropower stations and the risk for high voltage transients from current chopping.According to the results there is a risk of high voltage transients after current chopping with small synchronous generators in stations with the operating voltages 0.4 kV and 3.6 kV.

Theory of mind involves the ability to take another person?s perspective in thought, emotions and intentions.  There is today a lack of instruments to assess children?s development of Theory of Mind (ToM) in Swedish. ToM is considered by many scientists to be the basis for development of pragmatic competence. The relationship between these two abilities is complex and not fully resolved. Both abilities are important components for the development of social skills.    The purpose of this study was to compare 4 and 5-year olds ToM-ability measured with a Swedish version of Wellman and Liu?s ToM-scale, Sally Anne and Social Emotional Test with estimated pragmatic competence measured with the Children?s Communication Checklist (CCC).

The district nurses' duties with all organisational changes, above all during the last 20 years, have been changed. Economy and listing governs which visits that to be prioritized. The aim with this study was to examine what district nurses in the primary care in Uppsala län has for view about their occupational role. The method was qualitative and the selection comprized ten district nurses in Uppsala län that were interviewed individually on the basis of a semi structured interview guide that the authors the actual created. In the wide analysis of the results could a theme, As a rubber screw in a shrinking hole and three central categories be discerned, Occupational role, Diversity and Organisation.