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107 Uppsatser om Creep coefficient - Sida 6 av 8

Tyst Motarbete? : En studie om kvinnor i styrelsen påverkar avkastning på kapitalet.

ABSTRACTTitle: The exact title used in the thesis will be mentioned here.Level: Bachelor thesis in BusinessAuthor: Mattias Lindqvist & Jonas TesfaySupervisor: Peter LindbergDate: 2011 ? JuneAim: In Sweden the representation of women on company boards is discussed extensively. It has also been suggested that regulations such as quotas should be imposed, in hopes of getting the gender balance on the board of directors. Measures such as these have been presented when this problem attacks our democratic values about how a society should look like. The aim is to study and analyze whether there is any connection between the return on assets and the proportion of women on company boards.Method: The paper is made from a quantitative with a deductive approach.

Sjuksköterskors uppfattning av elektronisk dokumentation avseende tidsåtgång, teknik och vårdkvalitet

Documentation in electronic journals is perceived as time consuming and sometimes technically difficult to handle, but also leads to an improved quality of care. Objective: The purpose of this study was to investigate nurses' perceptions of documentation with a focus on timing, technique and quality of care and whether any differences in these perceptions were dependent on age. Method: Quantitative descriptive cross-sectional study in the survey form, 28 nurses at a university hospital in central Sweden participated in the study. Regression analysis was performed with Spearman's rank correlation coefficient. Results: Electronic documentation takes 30 to 60 minutes for most nurses and half of them considered it a reasonable time.

The shift in forest and tree limits in Troms County - with a main focus on temperature and herbivores

To better understand how various factors affect the establishment of forest and trees around the tree line-ecotone, this study was conducted in Troms County, Norway. The altitude of different forest and tree limits together with the surrounding vegetation type were collected during August 2011. Comparisons of the collected data were made with previously collected data from the same sites conducted 1914 and 1915. On average the forest limit has expanded with 26 meters in altitude, however, an expansion is not statistically significant for the whole area. The tree limit has significantly expanded in altitude.

Bestämning av bruttotemperaturexpansionskoefficient för Faradol 810

Detta examensarbete har genomförts på ABB Power Products/Instrument Transformers i Ludvika. Syftet med arbetet har varit att undersöka temperaturexpansionen för en isolerande olja som använd i produkten Capacitor Voltage Transformer (CVT). Oljans egen temperatur­expansionskoefficient                          var redan känd, men arbetets syfte var att bestämma en Brutto­temperaturexpansionskoefficient, med andra ord undersöka hur mycket de ingående komponenterna i en CVT påverkar den totala volymexpansionen inuti enheten.För att bestämma bruttotemperaturexpansionskoefficienten har ett prov i klimatkammare utförts. Provet bestod av två aluminiumkärl vardera med ett monterat mätrör. Det ena kärlet fylldes med olja och det andra kärlet med olja och kondensatorinnehåll motsvarande inne­hållet i en CVT.

Utvärdering av fosforläckageefter stallgödsling med hjälp av lysimeterteknik : Evaluation of phosphorus leaching aftermanure application using lysimeter techniques

Based on laboratory studies with lysimeters, the concentrations of dissolved reactive phosphorus(DRP) and particulate phosphorus, which is the main part of other P (OVRP), has been studied inpercolating water. The experiment was conducted through irrigation of small soil columnscontaining clay topsoil from an experimental field in Västergötland. Three rain simulations wereconsecutively performed. DRP concentrations in the percolating water ranged between 0.2 - 0.3mg·Lclearly related to the phosphorus concentration in the soil, measured in a soil extract ofammonium lactate (P-AL). Concentrations of OVRP were relatively low and ranged between0.12 and 0.16 mg·Lwas not proven and the experiment may reflect how a relatively slow percolation of water mayrelease DRP.

Utvärdering av klusteranalytiska metoder i kombination med bibliografisk koppling: en bibliometrisk kartläggning av aktuella forskningsteman inom informationsvetenskap

The purpose of this thesis is to evaluate the combination of bibliographic coupling and three hierarchical cluster analytic techniques: average, complete and single linkage. Bibliographic coupling is applied as a measure of similarity between recently published articles and the cluster techniques are used for the partition of a set of articles into subsets of articles with similar research focus. The field of information science is applied as the test arena and the selection of data, i.e., the article population to be partitioned, is based on a number of central journals. Methods of evaluation include both quantitative approaches as well as a qualitative one. For comparing the resulting partitions, adjusted Rand index is utilized and for the establishment of cluster coherence and isolation, measures of average normalized coupling strength is applied.

Likviditetspremiens vara eller icke vara - Om likviditetspremiens existens på Stockholmsbörsen

Background: Operating on the stock market is associated with risks. If a particular asset is not traded with the same frequency as the average market asset, this particular asset is exposed to a liquidity risk. It means that the investor might not be able to sell the asset at a desired time without incurring expensive transaction costs. The query is whether or not the investor is compensated with a liquidity premium for bearing the extra risk. Earlier studies on the Stockholm Stock Exchange have failed to prove that there is a relation between stock return and liquidity.

En fordonsförares upplevelse av accelerationer som grund för en effektiv simuleringsmodell

Saab Aerosystems has a long tradition and a lot of competence in the field of flight simulation. Their ambition to broaden the market horizon has led to a discussion about also selling vehicle simulation solutions, both for military and civilian use.The aim of this thesis is to investigate the driver?s experiences of the accelerations he or she is exposed to whilst driving in rough terrain. The results may be used as a basis for future decisions and can act as a platform for the construction of an effective simulation model.To investigate the driver?s exposure of acceleration, some kind of dynamic simulation is needed.

Luftprovtagning samt analys av mono- och diisocyanater

When exposed to them, isocyanates can induce serious injuries in the respiratory tract and irritation on the skin and in the eyes. They are therefore interesting from the point of view of occupational health. The purpose of this thesis was to collect isocyanates in air with impinger-filter samplers and solvent free samplers. Furthermore the isocyanates were to be analyzed with liquid chromatography-mass spectrometry. The solvent free sampler consists of a polypropylene tube and filter holder fitted with glass fiber filters impregnated with derivatization reagent, coupled with a pump.

Leken som undervisningsmetod : En studie om pedagogers syn på leken

AimThe purpose of this study was to investigate the relationship between off-ice horizontal jump tests and on-ice skating among students at hockey high schools. Questions: What is the association between the performance on horizontal jumps and skating 10 meters standing start among students in Swedish ice hockey high schools? What is the association between the performance on horizontal jumps and skating 10 meters flying start among students in Swedish ice hockey high schools?MethodStudents at three ice hockey high schools in the Stockholm area participated in the study. Two schools were national approved sports educations and one at lower level. All 50 students (41 at national approved sports educations and 9 lower level) that were included in the study were men and went year one and two in gymnasium.

Off-ice vs. on-ice : Hopptesters samband med skridskoåkning i ishockey

AimThe purpose of this study was to investigate the relationship between off-ice horizontal jump tests and on-ice skating among students at hockey high schools. Questions: What is the association between the performance on horizontal jumps and skating 10 meters standing start among students in Swedish ice hockey high schools? What is the association between the performance on horizontal jumps and skating 10 meters flying start among students in Swedish ice hockey high schools?MethodStudents at three ice hockey high schools in the Stockholm area participated in the study. Two schools were national approved sports educations and one at lower level. All 50 students (41 at national approved sports educations and 9 lower level) that were included in the study were men and went year one and two in gymnasium.

Skolan och stress : En studie om skolpersonalens syn på elevers stress

AimThe purpose of this study was to investigate the relationship between off-ice horizontal jump tests and on-ice skating among students at hockey high schools. Questions: What is the association between the performance on horizontal jumps and skating 10 meters standing start among students in Swedish ice hockey high schools? What is the association between the performance on horizontal jumps and skating 10 meters flying start among students in Swedish ice hockey high schools?MethodStudents at three ice hockey high schools in the Stockholm area participated in the study. Two schools were national approved sports educations and one at lower level. All 50 students (41 at national approved sports educations and 9 lower level) that were included in the study were men and went year one and two in gymnasium.

Samband mellan arbetsgrad och kinesiofobi hos vuxna individer med långvarig smärta och förändring av dessa variabler efter fyra veckors smärtrehabilitering

ABSTRACTPurpose: The purpose of the study was threefold. Firstly, to investigate if a four week program in pain rehabilitation had any effect on how much individuals with persistent pain worked and their degree of kinesiophobia. Secondly, to study if there was a correlation between how much these individuals worked and their degree of kinesiophobia. Thirdly, to study if there was a correlation between the change in these variables.Method: 112 patients who had participated in a four week rehabilitation program took part in the study. The study had a retrospective design, which was based on a review on medical records and consisted of three minor parts.

Tillämpning av en markprofilmodell för hydrologiska beräkningar i avrinningsområdesskala

There is a great need to reduce nutrient leaching from arable land into lakes and oceans. By using several different types of models it has previously been possible to describe nutrient losses in a catchment area with a minimum unit of sub-catchment level. At present, it is instead desirable to model a smaller catchment with an opportunity to re-connect the results to the corresponding fields in the catchment. Such models already exist but they are not fully able to properly describe Swedish conditions and land characteristics in our region.With the approach of creating such a model, SLU has developed a project with this work as its first stage. The model is expected to be created under the working name SWE-model which stands for Soil Water Environment and is in this first stage supposed to apply the SOIL model in catchment scale. During the procedure to describe the first step in the process of developing such a model adapted to Swedish conditions and which works in the catchment scale with an area of about 10-30 km2, focus has been set on calculating the transport of water flow from different hydrological response units. Regardless of the processes occurring in the soil after the water has been added, it is assumed that all the water which flows from each simulated unit is drained.In the first step the hydrologic response units were identified based on land use and soil type in the study area. With the help of a script with functions that retrieve and transform data, certain units were chosen for simulation. The script was also created in this project. Finally, the model results were aggregated and summarized for each unique unit, for each sub-catchment, and also for the whole catchment.From the results it is possible to see similarities in the flow dynamics between modeled and measured data. The efficiency coefficient has been calculated to correspond to the mean of the measured values for the whole simulation period. With an automated calibration process the model should be able to perform better. The volume error gives an indication of overestimation from the model..

Test-retest reliabiliteten i balanstesterna Unilateral stance, Limits of stability och Rhythmic weight shift

Människans balanssystem kan beskrivas utifrån tre delkomponenter, det vestibulära, det visuella och det somatosensoriska systemet. En rad olika skador och sjukdomar som påverkar dessa system stör därmed också balansen. Balansstörningar kan verifieras med hjälp av funktionella tester eller teknisk utrustning. Då teknisk utrustning används är det vanligt att instrument utnyttjas med kraftplattor i syfte att mäta det posturala svajet hos patienterna. Vid balansutvärdering är det viktigt att de instrument som används är validitets och reliabilitetstestade.

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