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10319 Uppsatser om Evidence-based - Sida 47 av 688

ALTERNATIVA ASFALTSBELÄGGNINGAR : Möjligheten att använda icke petroleumbaserade bindemedel

This report investigates the possibility to use non-petroleum based adhesive (biobitumen) in asphalt. The main reasons for replacing bitumen are the fact that oil prices are rising, the threat of peak oil and the fact that the asphalt industry is becoming more environmentally friendly.The main purpose of this report is to investigate whether there are any non-petroleum based adhesives on the market. If so, how can they be used? The questions covered are:? Are there any other alternative asphalt coatings available?? Can bio-oils be used in asphalt?? If the bio-oils can be used, what are the details their properties?? How does a cold climate affect the bio binders?? What is the Swedish asphalt industry?s opinion about bio asphalt?The project was concluded through literature studies, consultations with people in the asphalt industry and through several interviews.The conclusion of this report is that there are some existing non-petroleum based adhesives on the market. They are mainly used for bike paths, sidewalks and parkareas.

Att kunna det som andra kan : Knowledge management i ett kunskapsföretag

The capability to know what knowledge there is and where it resides within an organization is becoming increasingly important in the new knowledge-based economy. This paper takes on a practise-based view of knowledge in order to decide on a course of action for how to successfully implement knowledge management within a knowledge-based company. By considering all knowledge as more or less contextual and socially constructed, knowledge is divided into three dimensions depending on the degree to which it is tacit, namely: information, knowledge and skills. The paper then discusses inhibitors and enablers for transferring knowledge via these three dimensions respectively. The empirical findings are based upon a case study of Faveo. It is shown that Faveo, like most organizations, has til now focused on the collection of codified knowledge, i.e.

Energieffektiviserande åtgärderpå Robertsfors VA-nät : En förstudie av vilka energieffektiviserande åtgärdersom kan göras på pumpstationer och reningsverk

The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.

Amning som preventiv åtgärd mot plötslig spädbarnsdöd : En litteraturstudie

ABSTRACTObjectiveThe aim of this study was to determine if and what kind of scientific evidence there is for the advice that breast-feeding can reduce the risk of sudden infant death syndrome (SIDS). The aim was to investigate research on the subject published in the last 15 years.MethodA systematic review without meta-analysis with relevant original articles published in the last 15 years.Main resultsAfter searching for articles 26 relevant articles were used for this study and two were excluded because of poor quality. Mixed results were shown on breast feeding and the risk of SIDS. Breast-feeding seems to have some protective effect but can?t be separated from known risk factors of SIDS.Plain language summaryBreast feeding can be regarded as a preventive measure against SIDS.

Bestämning av lägsta luminans för utrymningsskyltar

This report is based upon an experimental study of exit sign luminescence in different environments. The purpose is to evaluate the lowest luminescence of an exit sign, based upon Swedish regulations. Scientific experiments have been conducted in a controlled environment, where exit sign luminescence was graded by an evaluation group. The results of these have been verified by similar experiments that took place in two department stores. The final result of the study is guidelines for appropriate exit sign luminescence in different environments..

Affärsmodeller inom E-commerce : ? Hur lyckas man som småföretagare på Internet

To start a company on the Internet is something that has appealed a lot of people during the last couple of years. Some of the companies have succeeded in their struggle but a lot of companies have failed to live out their ambition. This paper deals with the concept of e-commerce and aims to study whether or not the companies that has succeeded has made use of business models and what other factors that is important that you wont find in any written theory.The paper also aims to study the concept of business models and what a business model consists of. To be able to do this research we have interviewed three different companies that are all active in e-commerce and have survived for at least three years. Two of the companies are classical web shops that sell products to their customers and the last one is a site with articles about hardware and IT business in general.

KASAM, betyg och stress : En undersökning om sambandet mellan KASAM, attityd till betyg samt upplevd stress hos gymnasieelever

The purpose of this study was to investigate the relation between SOC, attitudes towards grades, and perceived stress levels among adolescents, and whether there was any difference in this relation between gender. The first research hypothesis was: "there is a gender difference to the degree of SOC, attitude to grades, and perceived stress level". The second was that "SOC and attitude to grades, predict stress in adolescents". To answer these hypotheses, a questionnaire survey was carried out among upper secondary students, 95 boys and 89 girls. The result of the analysis showed a significant difference between the gender.

"Tyst för fan" En studie om Jantelagens existens och kontroll

AbstractAre we always aware of our actions and the affect they have on our environment? With this study we are exploring a phenomenon, called Jantelagen, which have affected the Swedish society for a long time. It is a phenomenon that where brought to life officially in the 1930?s by an author called Aksel Sandemose. We want to know if Jantelagen still exist in the society or if it has faded to the degree that it is no longer in use.

Multimodalitet i klassrummet

The goal and purpose of this essay is to study if and how multimodality is used within a Swedish school in Kalmar. This is accomplished by observing the different modalities inside the classroom and how the use of different modalities affects the teaching. Unstructured observations combined with a material-based thematic presentation leads up to an analysis based on social semiotics and multimodality. The essay shows how the teaching uses lots of modalities: sound, images, movies, speeches and literary text in lots of different ways. These different types of modalities are used in a multimodal context, providing good conditions for learning..

Liv och rörelse på nya Kungsgatan : Ett arbete om framkomligheten på Kungsgatan i Eskilstuna

This report is about how accessibility in Eskilstuna's central trade street Kungsgatan can be improved, based on my background as spatial configuration designer, and by Eskilstuna's residents' opinions. In this report I explain what methods I have used, and how I attained my results. The goal of this project was to create ideal accessibility in the central part of Kungsgatan in Eskilstuna. Since Fristadstorget was rebuilt, and since the city is growing in terms of housing and residents, accessibility will in the near future be even more limited for visitors than it is today. My design proposal is designed based on street conditions, residents' opinions and Eskilstuna's existing ideas..

Spela för nöje eller spela för kunskap? : Lärares uppfattningar av IT-baserade matematikspel och dess konsekvenser på elevers kunskapsutveckling

Sveriges Radio stores their data in large archives which makes it hard to retrieve specific information. The sheer size of the archives makes retrieving information about a specific event difficult and causes a big problem. To solve this problem a more consistent use of metadata is needed. This resulted in an investigation about metadata and keyword genera-tion.The appointed task was to automatically generate keywords from transcribed radio shows. This included an investigation of which systems and algorithms that can be used to generate keywords, based on previous works.

Musikmarknadskommunikation 2.0 : En studie av hur svenska independentbolag i musikbranschen kommunicerar med sinmarknad via sociala nätverk på internet.

This essay has a purpose of looking at Swedish independent labels in the music industry and how they communicate with their market through social networks on the internet. There have not been much research about this in the past and we hope to contribute with knowledge to the area. In mind we had the changing music industry, an evolution of the internet and viral marketing communication.To answer our research question we decided to conduct three interviews with people who worked at independent labels and had market communication as their area ofresponsibility. The three independent labels in our study were based in Sweden, except for one that is based in London, England as well as Stockholm, Sweden. We selected the independent labels based on their tendency to work with marketing communication in the social networks on the internet.

"'Jag tycker såhär och då är det såhär.' Det är inte så." : En kvalitativ intervjustudie om lärares interaktionsstrategier i bemötandet av rasistiska, avvikande och kontroversiella uppfattningar

The purpose of this study is to investigate how six students at a Secondary School describes interaction patterns among teachers when students express in a way that the teacher perceives as racist and/or xenophobic, by presenting a qualitative interview study. The interviews were analyzed by two opposing models of value education: the traditional and the constructive model.The results show that students divide teachers in different categories based on five qualities: 1) they listening, 2) they accept students' opinions, 3) they allow discussion, 4) they are knowledgeable and 5) they can express their own opinions.These qualities are included in the value pedagogical model for deliberative conversations, whose strategies for interaction aim to create an understanding of different rules and values, thereby creating skills of rules by using a democratic approach. In contrast to this model, the rule-based moral education, in which the teacher uses his authority and refers to rules without giving an explanation for why they occurred, as strategies. .

Target Capital Structure and Adjustment Speed- a dynamic panel data analysis of Swedish firms

The purpose of this thesis is to test whether firms have target capital structure, and if so with what speed they adjust toward this target. Findings that support this purpose are also in line with the trade off theory. One of the key elements of this thesis is the method used, which successfully enables fulfilling the purpose. The panel data method captures the data characteristics of the cross sectional and time series dimension. By using this approach the dynamic effects of capital structure can be studied, thus if there actually is an adjustment towards a target the speed can be estimated.

Mobbning - ett groupthink-fenomen? : En gruppsykologisk fördjupning av mobbning

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.

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