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1362 Uppsatser om Simple linear regression - Sida 47 av 91

Initial evaluation of the Meritas Troponin I test for measurement of equine cardiac troponin I

Cardiac troponin I (cTnI) is considered a specific and a sensitive biomarker of cardiac disease, and due to a high inter-species sequence homology; human cTnI assays can often be used in veterinary medicine. The main aim of this study was to perform an initial evaluation of a human cTnI test, the Meritas Troponin I test, for measurement of equine plasma cTnI, in order to investigate whether the test could be a possible subject for a more comprehensive validation. The hypothesis was that the test could measure equine cTnI, as there is a good homology between equine cTnI and human cTnI. The evaluation included a dilution parallelism, an intra-assay precision study and measurement of plasma cTnI healthy horses. In the dilution parallelism and the intra-assay precision study, equine plasma with previously established high cTnI concentration, according to another cTnI assay, was used. In addition, cTnI concentration was measured in plasma, collected from 19 horses, without signs of disease at physical and ECG examinations. The obtained curve in the dilution parallelism was linear, indicating that the Meritas Troponin I test can be used to measure different concentrations of equine cTnI in plasma.

Är chefen verkligen jämlik och vad får det för effekter på commitment?

Teorin om Leader- Member Exchange antar att en chef differentierar mellan olika anställda i arbetsgruppen, vilket därav kan kännas av i arbetsplatsomgivningen. Ett högt utbytesförhållande med chefen har visat sig få betydande konsekvenser inom en organisation. Utifrån det kan det vara viktigt att chefen upplevs som jämlik. Denna studie undersökte hur chefen brukar differentiera förhållningssätt gentemot olika anställda samt om chefen uppfattas som jämlik, detta för att utröna vilken påverkan det har på commitment till organisationen, och till arbetsgruppen. Beroende på om avdelningscheferna skiljer sig åt beträffande uppfattad jämlikhet undersöktes om anställdas commitment skiljer sig åt mellan avdelningarna.

Personlighets och självkänslas samband med psykisk ohälsa hos studenter vid Lunds universitet

The purpose of this study is to examine whether personality traits, self-esteem, performance-based self-esteem and demographic data relate to, and can explain the variation in psychological ill-health among students at Lund University. A questionnaire was distributed to students attending the Psychology program, Bio-technology program, Theologian program and Law program. There were 247 respondents to the questionnaire, mainly attending their second or third semester. General Health Questionnaire (GHQ-12), Rosenberg's Self- Esteem scale, Hallstens scale measuring performance-based self-esteem, questions relating to demographic data and a short version of the personality inventory scale Big Five were included in the questionnaire. Positive correlations were found between psychological ill-health and the variables neuroticism and performance-based self-esteem.

Spatiella mönster och lager av organiskt klor och klorid i barrskogsjord i sydöstra Sverige

The concentration and storage of organic chlorine and chloride were determined in soil, to a depth of 40 cm, in a coniferous forest in the Stubbetorp catchment area in south-east Sweden. Also, the spatial distribution of the two forms of chlorine was determined. Soil samples were collected at 49 of the nodes in a grid with approximately 105 m between the nodes. The analysis of spatial variability suggested that no spatial autocorrelation was present either within the variable organic chlorine or chloride. This means that no sample was more influenced by another nearby sample, as compared to other samples further away.

Socialt stöd och copings modererande effekt på sambandet mellan stress och ohälsa

Stress i arbetslivet anses ligga till grund för en del av det stora antalet långtidssjukskrivningar. Arbetet att få tillbaka fler i arbete är viktigt men också förebyggande åtgärder för att förhindra fler sjukskrivningar. I denna studie undersöktes socialt stöd och copings modererande effekt på sambandet mellan arbetskrav och ohälsa. Urvalet bestod av lärare (n=443, svarsfrekvens 72 % Tid 1, n=340 Tid 2, longitudinell svarsfrekvens 78 %). Stegvis Multipel regression genomfördes för variablerna arbetsbelastning, måloklarhet, socialt stöd från kollegor och chefer, coping med hänsyn till kontrollvariablerna ålder och kön.

"Man kan ju hitta i princip allt man behöver på Google" : Högstadie- och gymnasielevers informationssökning i digitala medier

The purpose of this essay is to examine how high school students (age 13 to 19) search for information on the web and in databases. Furthermore, it aims to look into how critical of sources they are. The questions asked was: how the students search for information in digital media? Which kind of sources do the students use? How they evaluate the information they find? Do they get any education in information retrieval and source evaluation? To answer these questions students were interviewed in groups about their information retrieval behavior. Furthermore two school librarians were interviewed about their experience of the students? information retrieval.During the interviews it was clear that the students had received quite sparse instructions on the subjects of information retrieval and criticism of the sources.

Analys, design och konstruktion av en ITS-prototyp : Att övervaka och informera transporter av farligt gods på väg

The Swine flu (H1N1) erupted in 2009 and wasquickly spread over the world and developed into a pandemic, with a great threat against people?s health. It was soon discovered that the H1N1?virus had a different character than the seasonal flu, since it especially affected younger individuals and the consequences from the disease were expected to be more severe. In Sweden it was decided to provide a free of charge vaccination against the H1N1-virus, and the Swedish vaccination ratiobecome relatively high compared to other countries.

Tidsperspektiv som prediktor för individuella skillnader i upplevd stress : En tvärsnittsstudie av äldre vuxna

Time Perspective is related to mental and physical health. This study examines the relationship between Time Perspective and perceived stress where Time Perspective was expected to predict the level of perceived stress. Past-negative, Future-negative, Future-positive and present-fatalistic were expected to be positively associated with perceived stress while Past-positive and present-hedonistic were expected to be negatively associated. Measures from the self-assessment forms S-ZTPI, PSQ-recent and CES-D from 445 participants (242 women, 203 men) between 60-90 years were used to examine the hypothesis of the study. Two hierarchical multiple regression analysis confirmed that Time Perspective is associated with perceived stress and in part 2 explains it's variance, one when adjusting for demographic data (.R = .37) and the 2 other when adjusting for demographic data and depressive symptoms (.R = .13).

Kreativiteten i Humor : Domängenerella Mätningar av ett Domänspecifikt Område

The aim was to examine whether measurements of creativity as a domain general trait can explain possible connections between a domain general creative performance and one of the creative domain specific areas, humor. Another aim was to examine whether the maladaptive humor styles can explain possible differences in creative performances. An Internet-based survey was used on 281 students from a Swedish university. The survey was composed of three parts consisting of three separate measuring instruments ? Sense of Humor Questionnaire (SHQ-6) was used to measure the respondents? sense of humor, Humor Style Questionnaire (HSQ) measured the respondents? humor style and Alternate Uses Test (AUT) gave the respondents an opportunity to account for their creative performances.

Refugia som metod för att minska utvecklingen av anthelmintikaresistens hos får

Anthelmintic resistance is a major problem in sheep husbandry all over the world. One way toslow down the development of anthelmintic resistance is to keep part of the parasitepopulation in refugia (unexposed to drugs) which will maintain the genes for susceptibilitywithin the population. Climate, type of parasite and drenching regimes effect the size of therefugia. Dilution of resistant with susceptible parasites, targeted treatment and targetedselective treatment are all management strategies that employ refugia. Dilution is possible butcomplicated.

De blir fria i tanken : En kvalitativ studie om pedagogers tankar om pedagogisk dokumentation

This MA thesis analyzes how the protagonists and the narrative structure relates to ?the Child? as a linguistic/cultural construction in Mare Kandre?s early authorship (1984-1991). A thematic of children portraits defines this period of Kandre?s writing, which consits of the following works: In a Different Country (1984), The Annunciation (1986), Bübin?s Kid (1987), The Burning Tree (1988) and Aliide, Aliide (1991).Linguistic components, such as the word ?child?, the name ?Kid? and a reconstruction of the concept of childhood, holds an actuate position in these narratives when they first appear in direct relation to the protagonists. This suggests how generally accepted categories and concepts consciously are at work in Kandre?s writings.

Sexuellt självförtroende. : Hur tenderar vuxna skatta sitt sexuella självförtroende?

ObjectiveThe aim of this study was to explore nurses' experiences of informing relatives to critically ill patients in the intensive care unit (ICU).MethodThe study was descriptive with a qualitative approach. Nine nurses were interviewed. The study took place in a university hospital in the midst of Sweden. An interview guide was used, designed in consensus with the study questions. Data was analyzed via qualitative content analysis.FindingsMeeting and preparing relatives at the arrival at the ICU seemed valuable and led to safety and participation among relatives.

Viktiga faktorer för utländska direktinvesteringar i Sub-Sahara : en tvärsnittanalys

FDI har sedan början på 80-talet växt sig allt större och blivit en av de viktigaste tillgångarna till finansiellt och fysiskt kapital i världen. FDI har enligt många studier en viktig funktion för ett lands ekonomiska utveckling, detta gäller främst för outvecklade länder men också utvecklade länder. Studiens mål var att hitta viktiga faktorer som påverkade FDI inflöde till Sub-Sahara regionen. Den empiriska analysen gjordes med hjälp av en OLS regressionsmodell och hade 42 observationer sammanlagt. Huvudvariabeln var FDI/BNP.

Direktsamplande digital transciever

Master thesis work at ITN (Department of Science and Technology) in the areas of A/D-construction and RF-circuit design. Major goal of project were to research suitable possibilities for implementations of direct conversion in transceivers operating in the 160MHz band, theoretic study followed by development of components in the construction environment Cadence. Suitable A/D- converter and other important parts were selected at the end of the theoretic study. Subsampling technique was applied to make A/D sample requirements more realistic to achieve. Besides lowering requirements on A/D-converter it allows a more simple construction, which saves more components than subsampling adds.

Shape from Silhouette Scanner

The availability of digital models of real 3D objects is becoming more and more important in many different applications (e-commerce, virtual visits etc). Very often the objects to be represented cannot be modeled by means of the classical 3D modeling tools because of the geometrical complexity or color texture. In these cases, devices for the automatic acquisition of the shape and the color of the objects (3D scanners or range scanners) have to be used. The scanner presented in this work, a Shape from silhouette scanner, is very cheap (it is based on the use of a simple digital camera and a turntable) and easy to use. While maintaining the camera on a tripod and the object on the turntable, the user acquires images with different rotation angles of the table.

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