Sök:

Sökresultat:

527 Uppsatser om Serum-concentration - Sida 4 av 36

Evaluation of indirect blood pressure measurement, plasma endothelin-1 and serum cortisol in clinically healthy horses

Equine metabolic syndrome (EMS) it?s a clinical condition that includes obesity, regional adiposity, insulin resistance (IR) and laminitis. A similar syndrome exists in human medi-cine, the metabolic syndrome (MS), were systemic hypertension also is a prominent fea-ture. The systemic hypertension seen in humans with MS is partly due to a vascular endo-thelial dysfunction with an enhanced endothelin-1 (ET-1) mediated vasoconstriction. There are indications that systemic hypertension might be a feature in EMS as well but if ET-1 is involved in the development of the systemic hypertension in horses is not known.

Exponering för bromerade flamskyddsmedel vid arbete med flygplansunderhåll

Problemställning och syfte: Bromerade flamskyddsmedel (BFR) används i många varor och produkter. Polybromerade difenyletrar (PBDEs) är en av dessa och deras kemiska struktur liknar den i miljögiftet PCB och kan på samma sätt lagras upp i miljön samt skada människor och djur. På arbetsplatser där BFR förekommer riskerar medarbetarna att exponeras. I den här studien har olika BFR undersökts i samband med servicearbete på flygplan. Målet har varit att jämföra förekomsten i damm och luft, samt blod (serum) med resultat från tidi­gare studier.Metod: Damm- och luftprovtagning har genomförts vid olika faser av service­arbetet.

Elementkoncentrationer i gran utmed en markfuktighetsgradient :

One key factor in silviculture today is sustainability. In order to achieve sustainability it may be important to restore lost nutrients to the forest after clearcutting. In order to calculate the removal, you need to know how much of different elements you will find in different tree compartments. The aim of this study was to investigate if the concentration of elements in different tree compartments of spruce (Picea abies (L.) Karst) were related to the moisture conditions of the site. Five plots at Risfallet (60º 21´ N, 16º 13´ E), was placed along a moisture gradient in a 40- year spruce stand.

Vertikal förtätning : En del av ett hållbart stadsbyggande?

This is an essay concerning the density of the city. An increasing amount of today?s cities have a shortage of space available for the erection of new buildings and settlements, especially in areas close to the city-centre. New buildings and settlements are therefore often found in the outskirts of the city, resulting in long distances between work and living for many people. These long distances are a waste of limited resources and are inconsistent with the vision of the sustainable city.The challenge for the future is to insert new buildings and settlements in the existing city-structure and in this way reduce the distances between different city-functions.The density of the city can be increased in two different ways; by inserting new buildings between existing ones or by extension existing buildings, for example by an additional floor.

Utveckling av ett provtagningssystem för alkohol och aldehyder i fordonsemissioner.

A system for sampling of alcohol and aldehyde from diluted exhaust gases from vehicles powered by ethanol has been developed and tested. The major part of the work has been research of earlier work in the field and the construction of the sampling system.The part of the system constructed for the measurement of alcohol has been shown to work, however, more test should be performed. The part of the system constructed for the measurement of aldehyde was tested parallel to a commercially available system, based on the same principle of measurement, and has been shown to work well.Determination of the concentration of gaseous ethanol using a FID has shown the since earlier known fact that a FID is not able to measure a correct concentration of ethanol. Furthermore it has been shown that high concentrations of gaseous ethanol can not be kept in a bag more than a few minutes without a substantial decrease of the measured concentration..

Serum Amyloid A as a possible marker of health and disease in non-domesticated mammals : a retrospective pilot study of SAA levels in dolphins, elephants and tapirs at Kolmården Wildlife Park

The veterinary handling of wildlife, both in zoos and in the wild, commonly requires that the patients need to be captured and immobilized for examination or treatment. This emphasises the need for quick, on-site, laboratory equipment, in order to minimize the analysis time and thus the stress for the animal and also in order to increase the possibility of starting relevant treatment early on. The aim of this pilot study was to determine whether Serum Amyloid A (SAA) could be a measured in blood samples from bottlenose dolphins (Tursiops truncatus), Asian elephants (Elephas maximus) and South American tapirs (Tapirus terrestris). SAA rises to its maximum about 24 hours after the introduction of an inflammatory agent in companion animals. This also correlates with the estimated time it takes for animals at Kolmården Wildlife Park to be examined and having blood samples collected after being observed as sick. The study also evaluated whether the Eurolyser SOLO, using a turbidometric immunoassay (TIA) developed for human diagnostics, could be used for such analysis. This pilot study was a retrospective analysis of SAA in convenience sampled frozen serum, collected from dolphins, elephants and tapirs.

Betydelsen av fysisk aktivitet för barns koncentration i förskolan : En studie om betydelsen av fysisk aktivitet för barns koncentrationsförmåga vid samlingar i förskolan

The purpose of this investigation was to investigate how being outdoors and participating in physical activities affect the concentration in a collection situation among children.The methods I chose were observation of two groups of children two times each and interviews with four educators.The results showed that the concentration in the collected situation depends on past activity, where it has taken place and that the environment has an impact. If the previous activity been more active and physical the subsequent collected situation is calmer and the children more concentrate. The facts that the children have been outside in an inspiring environment that encourage playing and movement also have a position impact on the child´s ability to concentrate. The collected situation is an important moment in the preschool day when the kids need to congregate and get a chance for social interaction and a sense of togetherness with all the children and teachers. The conclusion is that there is a relationship between movement, physical activity and an increased concentration.

En färgad röst : En stilanalys av tysk expressionism och sagor i filmer av Tim Burton

The purpose with this study was to see the relation between gymnastic pause and concentration to find out the students in a first grade experiences and thoughts about gymnastic pauses in the classroom. I have made a qualitative study to fulfill my purpose, I have observed students before and after the gymnastic pauses, carried through gymnastic pauses with the pupils and interviewed pupils in group.Previous research shows that the good working atmosphere and concentration has improved when pupils have had gymnastic pauses but it is difficult to say how it looks in the long term when the research doesn?t show that.In my study, it appears that the gymnastic pauses make it calmer in the classroom. Some of the pupils believe that they have had a better ability to concentrate after the gymnastic pauses while some pupils believe that they have not had a better ability to concentrate. Some pupils say it's good to get a break to carry on with the schoolwork during the entire lesson.

Pausgympa och koncentration : Elevers upplevelser av pausgympa i klassrummet

The purpose with this study was to see the relation between gymnastic pause and concentration to find out the students in a first grade experiences and thoughts about gymnastic pauses in the classroom. I have made a qualitative study to fulfill my purpose, I have observed students before and after the gymnastic pauses, carried through gymnastic pauses with the pupils and interviewed pupils in group.Previous research shows that the good working atmosphere and concentration has improved when pupils have had gymnastic pauses but it is difficult to say how it looks in the long term when the research doesn?t show that.In my study, it appears that the gymnastic pauses make it calmer in the classroom. Some of the pupils believe that they have had a better ability to concentrate after the gymnastic pauses while some pupils believe that they have not had a better ability to concentrate. Some pupils say it's good to get a break to carry on with the schoolwork during the entire lesson.

Spänningsanalys av axel-länkmekanism på borr-rigg

This master thesis is intended to give an increased understanding of the stress state in an axle, which is assembled in one of Atlas Copco?s mountain drilling rigs. The main problems investigated were how the axle is affected when the bearing is worn, when the pretension is varied, and how to dimension the axle. Answers to these questions were found by using hand calculations, practical testing and with Finite Element analyzes. The dimensioning of the axle is currently based on the bending stress, but the author?s opinion is that the axle should be dimensioned considering the equivalent stress.

Arbetsprov i fält på ridhästar

Sport horses are widely used for performance in jumping, dressage, endurance etc. To enable comparisons of horses, training facilities, programs or physical status, an exercise test can be used. Exercise tests are also important to increase knowledge about exercise physiology of the horse considering different ways of training to compare training methods or individual qualities, development of an individual or other investigations of equine exercise physiology. Since several investigations are done on standard- and thoroughbred horses but less on sport horses, it is of great importance to get an overview of the investigations done. Most common is to investigate heart rate and lactate concentration.

Lärares uppfattning omutomhuspedagogikens påverkan på barn med koncentrationssvårigheter : ? i den traditionella undervisningen

The objective for this study was to acquire a greater insight if children with concentration difficulties are assisted by outdoor education in the traditional teaching. With the use of a qualitative methodology four teachers were interviewed. The outcome gave evidence for that the teachers thought that outdoor education has a positive outcome for children with concentrations difficulties. The findings were divided into three key categories: the teacher?s reflections about outdoor education, outdoor education for children with difficulties in concentration and if there was any difference in how the children behaved indoors after having educations outdoors..

Användandet av samlingsprover för att bestämma besättningsstatus för smitta med Dictyocaulus viviparus hos förstagångsbetande nötkreatur :

Infection with the bovine lungworm - Dictyocaulus viviparus - is occasionally a problem in Swedish cattle herds. The infection could act in synergism with other infections such as Corona virus to create a poorer welfare and productivity in cattle. Studies have shown that a diagnosis can be made with both the Baermann method and with an ELISA. In Norway diagnosis of BVDV on a herd level is attained through pooled serum samples. The question was raised whether pooled serum samples could be used in a similar fashion to attain status on a herd level for lungworm.

Hälsoskolor kontra ?vanliga? skolor : skiljer sig undervisningen i ämnet idrott och hälsa?

AimThe purpose of this study is to investigate how schools who have a health concentration and schools who haven?t are teaching physical education and if possible compare these schools.This study is based on following questions: How do schools with a health concentration and schools who haven?t, in compulsory school, teach physical education and health. How do physical education teachers describe their teaching and how do the students describe it.MethodMy study is a qualitative study based on interviews with teachers and students from different schools. The interviews have been made on four different schools from all over the country. I have interviewed one physical education teacher and four students, two boys and two girls, from each school.

Utvärdering av autologt konditionerat serum :

Joint injury (inflammation) or osteoarthritis is the most common cause of poor performance in the athletic horse. Osteoarthritis is the ensuing degeneration of joint cartilage due to inflammation/injury. The single most important factor in the inflammation cascade of joint injuries is interleukin-1 (IL-1). Until recently, these injuries have been treated with products like hyaluronic acid, cortisone and polysulphated glycosaminoglycans (PSGAG). Several studies have not been able to demonstrate a significant difference in the clinical improvement of joint injuries treated with hyaluronic acid or PSGAG and saline.

<- Föregående sida 4 Nästa sida ->