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4857 Uppsatser om Life Cycle Assessment - Sida 10 av 324
Termomekanisk utmattning av Sanicro 25 : Materialmodellering med finita elementmetoden
The report aims to describe the austenitic stainless steel Sanicro 25 from a thermomechanical point of view. The thermal and mechanical properties of the material make it suitable for use in coal ? and thermal power plants. By the use of Sanicro 25 it would be possible to bring the efficiency of these plants up while bringing the carbon emissions down.A material model is created from material testing and validated through simulation in the finite element software Abaqus. The model that has been derived describes the material behavior during loading and stress relaxation for the first cycle in a thermomechanical fatigue test well.
Dömd eller bedömd? : en studie om bedömning av de nationella proven ur ett lärarperspektiv
The aim of this study was to analyze the assessment of the national tests seen from the teacher?s perspective. The national tests are performed in the Swedish school, classes 3, 5, 9, and the upper secondary school (gymnasiet). There has been an ongoing discussion regarding assessment and grading for a long time and it is of high interest now more than ever. The last control assessment done in 2009 by the department of school inspections on the order of the Swedish government, showed big differences between the assessments done by the teachers, and the assessments completed by the department of school inspections.
"Bedömning är ju att man ska sätta betyg" : En kvalitativ studie av lärares tankar om bedömning
Syftet med följande studie är att undersöka hur gymnasielärare kan resonera kring bedömning. Fokus ligger på huruvida respondenterna har ett i huvudsak formativt eller summativt förhållningssätt, samt vilka möjligheter respektive hinder de ser i formativa bedömningsmetoder. Empirin har insamlats genom intervjuer, och visar att respondenterna har en summativ syn på bedömning där betygsskalan är central. De möjligheter som ses i formativa metoder är ökad medvetenhet hos eleverna samt tydlighet gällande kursmål. De hinder som tas upp gäller elevernas mognad, lärarens osäkerhet och otillräckliga kunskap samt tidsåtgången..
Åtta 11-åringar och deras frågor och funderingar kring livet : en jämförelse av två studier
The purpose of this study is to describe children?s life issues. What kind ofquestions they have aboutlife, their thoughts about life. Another purpose of this study is to see the differences in how children?s thoughts about life have changed through the years.
"Det blir vad man själv gör det till" : -En kvalitativ studie om ensamhet och livskvalitet bland äldre.
Abstract This is a qualitative study of elderly people's experiences of loneliness and quality of life. Also the relationship between loneliness and quality of life are examined. Previous research has shown that social loneliness is about when the social context are lost while emotional loneliness can occur with the loss of close relationships. Quality of life is about a sense of connection but also the quality of life arises in the difference between the expectation of what one is and what one wishes to have. This study has shown that the interviewees preferences, activities, social networks and low expectations on their life situation makes interviewees perceive themselves to be less lonely and have a good quality of life.
Vad påverkar beslutet av missbruksvård? : Faktorer som kan påverka val av insats
Title:What influences the assessment of addiction treatment? - Factors that may affect thechoice of interventionsThere are few studies on trauma and the importance of religion for the professional handlingof abuse clients in a Swedish context. It is therefore appropriate to examine the role of suchfactors. This study examines whether experienced trauma in childhood or religious beliefsinfluence the assessment and selection of input in fictitious cases. To examine this created sixvignettes.
The movement of the rider?s hand related to the horse?s behaviour and the stride cycle
One way of signalling commands to the horse during riding is through applying tension on the reins to create bit pressure in the horse?s mouth (Terada et al., 2006; Clayton et al., 2011). The skilfulness of the rider in using the hands when applying bit pressure has consequences both for the horse?s performance and welfare (Manfredi et al., 2010). At the trot there are large vertical deviations of the horse?s body which the rider must adjust and adapt to (Terada et al., 2006) and an unsteady hand due to inability to follow the horse?s movement can be a source of discomfort and conflict behaviour in the horse (Heleski et al., 2009).
Verktyg för värdering av miljöpåverkan vid investeringar i det svenska elstamnätet
During the period 2009-2013, investments in the Swedish national grid increase by a factor of ten compared to previous years. In order to fulfil their mission to manage the national grid in a safe, efficient and environmentally sound way, Svenska Kraftnät (Swedish National Grid) needs to take all these perspectives into account while planning new investments. To compare and relate perspectives of technology, economy and environment the same yard stick must be used. That yard stick is commonly money. A problem arises however as environmental issues are difficult to price.The purpose of this master?s degree project was to develop a tool for evaluation of environmental impact related to investments in the Swedish national grid.
Riskbedömning och naturligt producerade dioxiner
The highly toxic man-made substance referred to as dioxin (polychlorinated dibenzo-para-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs)) causes severe health damages both to humans and other organisms, with lethality as its worst. Because of the toxicity several risk assessments has been performed on dioxins trying to determine at what concentration there are no risk of exposure. Resent years of research has discovered that these substances are not only anthropogenically but also producedin natural processes, like volcanoes and forest fires. To investigate if there is a need to take these naturally formed dioxins into account in the risk assessment processes, interviews with persons at relevant institutions in Sweden has been made. Analyses of existing risk assessment methods and political documents were also made to complete the picture.
SECOND LIFE: SECOND CHANCE - A netnographical study of the online virtual world Second Life as a place of...
Our study illustrates the nature and characteristics of the virtual world Second Life. We have identified that the online community aims to satisfy hedonistic needs through social and conspicuous consumption, for online use only, concentrating on socially accepted identity construction..
Formativ bedömning : En litterturöversikt med analys
Genomförda undersökningar visar att formativ bedömning förbättrar elevers inlärning och förståelse. Den svenska läroplanen från 2011 ger tydliga indikationer på att formativ bedömning ska inkluderas i undervisningen. Vår diskussion i denna uppsats är därför aktuell och den visar hur forskare artikulerar fenomenet formativ bedömning. Litteraturstudien inkluderar information om vad formativ bedömning innebär och förslag på hur man kan arbeta utifrån ett sådant arbetssätt. Vår studie visar att de viktigaste komponenterna inom formativ bedömning är att tydliggöra målen, återkoppling samt själv- och kamratbedömning.
Koncern som tillväxtinkubator för småföretag : ? En fallstudie i ett shared service centers möjligheter attstödja entreprenöriella småföretag
???Information Technology is an essential part of the society today, not least in large ???organisations dealing with sensitive information. An example of such an organisation is the Swedish Armed Forces which indeed is in the need of ways to ensure information security in their Information Technology systems. The means which is used is an authorisation and accreditation process.All Information Technology systems go through a life cycle which includes realisation, usage, development and liquidation. In the Swedish Armed Forces the lifecycle is an authorisation process.
Faktorer som påverkar sjuksköterskans bedömning och värdering av smärta hos patienter : En litteraturstudie
The aim is to describe the factors that influence nurses' assessment and measurement of pain in patients. Literature study based on 13 reviewed articles, searched in the Cinahl. Qualitative and quantitative articles were analyzed. Six themes were identified that can be seen as the factors that influence nurses' assessment and measurement. The themes were pain education, nurses´ experience in the profession, nurses´ level of knowledge about pain relief, documentation about pain, nurse´s perspective on the patient, and pain measurement.
Livskvalitet efter hjärtstopp : en litteraturöversikt
Aim: The aim was to describe adult patients quality of life after cardiac arrest and resuscitation with CPR. Method: A literature overview based on eight scientific articles and one master thesis. Results: The result is presented in three categories, physical, psychological and social quality of life. Sleeping disorders, fatigue and low energy level affected the physical quality of life in a negative way. The psychological quality of life was often impaired the first time after the cardiac arrest, to be improved over time.
Hur föräldrar uppfattar läxan och de problem som kan uppstå med den : En kvalitativ studie om föräldrainflytande
My aim is to find out about teachers? perceptions of methods concerning learning and assessment of oral proficiencies. My questions are: What perceptions are there among teachers concerning assessment of oral proficiencies? How do teachers describe their ways of promoting and assessing oral proficiency? In order to answer my questions and obtain data I have accomplished two focus groups interviews with seven language teachers. The result shows that teachers are concerned with several factors regarding assessment of oral proficiency.