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7679 Uppsatser om User studies - Sida 40 av 512

Förebyggande effekter av fysisk aktivitet på depression : ? en litteraturstudie

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.

Intranät - en kunskapskälla i arbetet?

The ambition with this study is to look into and create an understanding for how an intranet can work as a support system in work processes in capacity as a source of knowledge. We want to enhance the understanding for which kind of knowledge that can be coded in and transmitted by an intranet, and which that is lost in this process. We also want to clarify what it takes to get this knowledge, in collaboration with the intranet, to support the work in an organization. It is a qualitative case study at a Swedish bank. It consisted of semi standardized, half structured interviews with five people in one of the bank?s local offices.

"Utan språket blir man både döv och stum" : En studie av avbrottsorsaker på grundläggande vuxenutbildning

 The aim of this paper was to investigate how many students studying Swesdish as a foreign language, at secondary school level, in Tierps kommun, that have dropped out and their reasons for doing so. The reason for this is the report from Skolverket, stating that the rate of drop outs at this level is very high. To investigate this, a quantitative method was used. A questionnaire was sent out to all the students that dropped out 2005-2008. The result showed that the two main reasons for leaving their studies were that the individuals had found a job or thought the studies were too hard. The research also showed that the majority of the students had not been in contact with Career counseller prior to ending their studies. We came to the conclusion that there might be a need for developing the teaching and to work out routines for guidance at drop out situations.

Godshantering med Scania Interactor

This thesis is about making a support for barcode readers and RFID readers on a computermounted in heavy vehicles. The computer has several applications designed for heavyvehicles such as an order handling application. The goal was to suggest an architecture toimplement a support for the readers. The architecture should be independent of whichmanufacturer who has made the reader hardware that was connected to the computer.At first a theoretically study was made around RFID technology and standards for thetransport and supply sector. Then the architecture was developed and a demo implementationwas made.The conclusion of this thesis is to implement support for barcode readers with a wedgeapplication.

Visualisering av elanvändning i kontorsfastigheter : Utveckling, implementering och utvärdering av visualiseringsverktyg för minskad elanvändning

This thesis examines the effects of electricity visualization in an office building. The subject was investigated through the creation of a web based visualization tool that was made accessible to the about 1500 employees in a large office building. The visualization was available for three weeks. During this period interviews, User studies and observations took place in order to evaluate what, if any, effects the visualization had on the attitudes and behaviors in the office. Electricity use data was collected and analyzed to see if the project had a statistically significant effect on the electricity consumption in the office.The results from the interviews and the data analysis indicate that no reduction in electricity consumption took place, and a number of factors that could increase the chances of success were identified.

Prehospital vätskebehandling vid stort trauma ur en sjuksköterskas perspektiv : En systematisk litteraturstudie

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.

Simulering av elektriska förluster i en vindkraftpark : Utveckling av programvaran Wind Farm ElectricSystem Calculator (WFESC)

When planning new wind farms, the cost for the internal electrical grid is estimated to account for 8-9 % of the total investment cost. On top of that, the cost for accumulated reduced income over several years (due to electrical losses), has to be added. The economic lifespan is relatively long (about 20 years) which means that an error in the loss calculation could lead to a bad decision basis. The accumulated reduced incomes due to electrical losses can be higher than the initial investment cost for the internal electrical grid.Today, Statkraft Sweden is using a template number when estimating the electrical losses in a wind farm. The actual losses are probably lower than the template number which could lead to an unnecessary high loss cost when planning a new wind farm.The aim of this M.Sc.

Öppna integrationsplattformar

In today?s computerized society more and more companies choose to utilize new applications that can ease the way of handling the information. For many of us is imperative that the process as efficient as possible if one takes in consideration the size of savings that this new application can bring.The developer of the evaluated system is SYSteam AB Huskvarna and they are the ones that gave us this assignment. The application that we evaluate is SCM (Secure Connection Manager). It is already used today by big companies such as Telia and Ericsson to search for errors in telephone servers placed all over the country.

Halva jobbet är gjort! : -en studie om specialpedagogens samverkan med hemmet.

The aim of my thesis is to unveil orientalistic powerstructures in the new national curriculum for religious studies in Swedish upper secondary schools. Western imperialism and modernistic ideals has formed the Swedish perception of what constitutes as Swedish, this perception also influences the Swedish religious understanding. This understanding is imbedded in the national curriculum for religious studies which enables a western hegemony to prevail..

Biologisk mångfald - lärares undervisning och elevers insikter i ämnet

The aim of my thesis is to unveil orientalistic powerstructures in the new national curriculum for religious studies in Swedish upper secondary schools. Western imperialism and modernistic ideals has formed the Swedish perception of what constitutes as Swedish, this perception also influences the Swedish religious understanding. This understanding is imbedded in the national curriculum for religious studies which enables a western hegemony to prevail..

Total Cost of Ownership -Revealing the true cost of owning and operating equipment

Abstract Title: Total Cost of Ownership ? Revealing the true cost of owning and operating equipment. Authors: Anna Bladh Anna Ström Tutors: Michaela Boye, Parts and Service, PTD, Alfa Laval Göran Berg, Parts and Service, PTD, Alfa LavalCharlotta Johnsson, Department of Automatic Control, LTH, Lund UniversityBertil I. Nilsson, Department of Industrial Management and Logistics, LTH, Lund UniversityCarl-Henric Nilsson, Department of Business Administration, Lund University Core issue: ?Which costs should be included in a general Total Cost of Ownership model regarding centrifuges, and what input variables are needed in order to calculate those costs in a user-friendly way and with a maintained level of accuracy?? Purpose: The theoretical purpose of the thesis is to identify the cost items that have the greatest impact on a TCO calculation for a centrifuge.

Spelifiering som motivationshöjande hjälpmedel för fysisk aktivitet

In today?s world there are plenty of technological tools and methods available with the purpose to increase peoples motivation for a healthier lifestyle. One such tool is a so-called activity tracker which uses sensors to log the user's everyday life and present it as automatic feedback. Gamification is a new and successful method to motivate and engage people in fulfilling tasks by using game elements and mechanics. In this study, five participants were instructed to use the activity tracker and pedometer Fitbit Flex daily for three weeks. Halfway through the study the participants were ranked and listed against each other in a ranking list in order to evoke competition.

Att återvinna det förgångna: en studie av exploateringsarkeologers informationsbeteenden

The thesis of this work has been to investigate the information behaviour of archaeologists. Interviews were made, between March-September 2002, with ten archaeologists, employed in one Swedish organisation, conducting rescue archaeology. The archaeologists were all experienced in working positions as project leaders. Our thesis could be expressed in following questions: - Which sources of information did the archaeologists use in their work? - Which external and internal factors had influence on the information behaviour? The results of this study have been analysed within a theoretical framework of T.D Wilson, Lars Seldén, Lars Höglund and Olle Persson, among others.

Användarinvolvering och acceptans av affärssystem

[ An abstract in English will follow]Denna uppsats handlar om på vilket sätt användarinvolvering påverkar acceptansen av ett affärssystem. I studien redogörs varför acceptansen påverkas av användarinvolveringen, samt hur påverkan sker och vad som leder till den.IT genomsyrar idag så gott som alla former av företagsamhet. Affärssystem stödjer affärsprocesser i flera branscher, från tillverkande företag till renodlade tjänsteföretag. Ett företag behöver exempelvis anpassa både sina affärsprocesser och det nya affärssystem för allt som sker inom företaget. På grund av komplexiteten som detta för med sig är implementeringen ofta ett stort steg för företaget och dess anställda.

"där jag skulle liksom hitta ..allting..."; mötet mellan privatforskare och Kungliga Biblioteket

The purpose of this paper is to investigate and analyse the private researchers encounter with the Royal Library, national library of Sweden. The main focus is on answering the two questions: who is the private researcher and what is his/her impression of the Royal Library? These questions are answered from the vantage point of the following theoretical perspectives: library anxiety, Bourdieu, library architecture, gender studies and service management. The methods used are qualitative interviews, and textual analysis using the printout of these taped interviews along with notes and an earlier user study as material. The conclusions are that barriers with staff is the most frequent factor of library anxiety in the private researcher at the Royal Library, and mechanical barriers the least frequent.

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