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21122 Uppsatser om Experimental study - Sida 18 av 1409
Effekten av tillskott av CLA på kroppsvikt och andel kroppsfett hos överviktiga och feta
Sahlgrenska Academyat University of GothenburgDepartment Of Internal Medicine And Clinical NutritionAbstractTitle: The effect of CLA on body weight and body fat amongst overweight and obese.Author: Sierra De Goldsmith and Amanda EgebergSupervisor: Frode SlindeExaminer: Anna WinkvistProgram: Dietician study program 180/240 ECTSType of paper: Examination paper, 15 hpDate: April 12, 2012Background: Overweight and obesity represents a global problem as it is accompanied by an accumulation of body fat which increases the risk of developing diseases such as diabetes type 2, insulin resistance, cardio vascular diseases and certain types of cancer. Moreover, the prevalence is increasing worldwide. Many consider it difficult to reach a normal weight using only methods such as changing dietary- and exercise habits, this creating a market for products that facilitate weight loss and loss of body fat. The supplement of conjugated linoleic acid (CLA) is such a product. In animal studies, CLA has demonstrated a reduction in both body fat and weight.
Evaluation of a selective media for the detection of gram-positive bacteria in leg ulcers and pressure wounds
Hard-to-heal ulcers are resource intensive due to the fact that they are difficult to treat and especially vulnerable to bacterial invasion. The bacterial culture contaminating these wounds often consist of several different bacterial organisms that originate from endogenous sources. Necrotic material in ischemic ulcers provide nutrition which support bacterial reproduction, increasing the risk of infection. Determining causative pathogen in infected ulcers proves to be difficult when culturing swab samples, however Staphylococcus aureus and hemolytic streptococci generally act as primary pathogens. The aim of the study was to investigate if the detection rate increased for S. aureus and hemolytic streptococci when culturing swab samples from ulcers on Columbia CNA; a media selective for gram-positive bacteria.
Kan tuggning leda till träningsvärk i massetermuskulaturen ? en experimentell studie
Syfte: Målsättningen med studien är att hos friska kvinnor utvärdera om intensiv tuggning leder till en proprioceptiv allodyni i massetermuskulaturen. Följande hypoteser testades i studien: 30 minuters intensivt tuggande leder till (1) ökad trötthet och smärta, (2) sänkt smärttröskel, (3) ökad vibrotaktil känslighet (4) samt träningsvärk i massetermuskulaturen bilateralt. Material och Metod: 16 friska kvinnor (medelålder 25.8 ± 5.0 år) deltog i studien som bestod av två 60-minuters sessioner med 24-timmars uppföljning. Vid ena sessionen tuggade försökspersonerna på ett grekiskt tuggummi (Masticha Chios) i 5-minuters intervaller under 30 minuter, och vilade vid den andra sessionen. En vibrameter användes för att mäta vibrationströskel, upplevd vibrationsintensitet och upplevd vibrationsobehag.
Ibland ser man inte berget för alla kullar : - En studie av kognitiv omstrukturering och kognitiv defusion för social fobi
Kognitiv beteendeterapi (KBT) har mest evidens vid social fobi, och på senare år har även guidad självhjälp baserad på KBT visat goda resultat. Acceptance and commitment therapy (ACT) är en del av den tredje vågens KBT och har visat lovande resultat vid ångestsyndrom. Företrädare för ACT har varnat för riskerna med tekniker för att utmana negativa automatiska tankar. Studien syftar till att med en single case experimentell design med multipel baslinje (N=9) studera effekterna av kognitiv omstrukturering (KO) och kognitiv defusion (KD) i form av guidad självhjälp på social ångest, socialt undvikande, psykologisk flexibilitet, defusion, samt frekvens av och trovärdighet hos negativa automatiska tankar. Resultaten visade att KO och KD inte enbart påverkade de processer som teorierna predicerar utan även den andra behandlingens processer..
Skönlitteratur och skrivutveckling : Om boksamtal i undervisningen.
Syftet med min studie är att undersöka om det finns ett samband mellan högläsning, boksamtal och den individuella skrivutvecklingen. Det grundar sig i min tro att den skönlitteratur eleverna läser påverkar hur de uttrycker sig i skrift. För att ta reda på om det finns något sådant samband valde jag göra en kvalitativ undersökning utifrån experimentell design. Undersökningen genomfördes på en mindre grupp elever i år 3 vid fyra tillfällen under vårterminen 2007. Vid varje tillfälle läste jag högt ur av mig vald bok.
Viltets inverkan på vegetationsutvecklingen i en Sydsvensk skogsföryngring :
Herbivore impact on the Swedish forest has under a long time been a common subject of
debate. There are many different opinions depending on what direction the forest owner has with his/her forest. Populations of moose and roe deer have increased significantly in Sweden during the last decades. The purpose of this study is to get a full picture of the herbivore impact on the regeneration areas. The field work was done once a year for seven years (1999?2005).
De dömdas öde : en rättsmedicinsk tolkning av skeletala skador från avrättningsplatsen Galgberget i Visby
This scientific essay contains an interpretation of injuries caused by weapons and traumas on the bones from the execution site Galgberget in Visby, Gotland. The site was used from about the 13th century to 1845 AD. The purpose is to examine the injuries and describe them, also to investigate what may have generated them. An important question is what bodily position the individuals had at the time of the injury. The methods presented in this essay can be associated with experimental osteology, also the basic methods such as sex- age- and stature- assessment has been applied where?s possible.
Kartläggning av energiförluster : gällande klimatskal och ventilation för Stora Enso Timbers Pelletsfabrik i Grums
Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.
Är yrkesverksamma tandhygienister i Sverige intresserade av att komptetenshöja sig genom utbildning?
ABSTRACTThe aim of this study was to ascertain whether there was any interest among dental hygienists, raising their level of competence throught attending additional courses or gaining further qualifications. The study was carried out by sending out two-hundred questionarires to randomly chosen dental hygienists. After one remainder come the answer frequency up to 66%. The study shows that many of the dental hygienists are interested to study at college. Many wanted raising level of comtpetence by education, wich also the study shows.
Smal, smalare, smalast: en jämförande studie mellan Pro-ana och det "normala" smalhetsidealet
Syftet med studien är att undersöka Pro-anorexia (Pro-ana) bilders påverkan på kvinnor jämfört med vedertagna modellbilders påverkan. Blir kvinnor mer påverkade av att titta på extremt smala kvinnor än av att titta på "normala" smala modeller? En experimentell mellangruppsdesign, med 42 kvinnor från Lunds universitet användes. Den påverkan som mättes var matproblematik, tjockkänsla, idealkropp, självförtroende och affekter. Pro-anafilmer, modellfilmer och kontrollfilmer användes som stimulimaterial.
NO NAME - Fenomenet förståelse
This thesis examines the experience value of the wolf and wolf hunting presented in mediaduring December 17, 2009-Feruary 15, 2010. I analyze news articles, editorials and letters tothe editor in three newspapers. In order to investigate the experience value of the wolf and thewolf hunt, I have with inspiration from a model employed in the assessment of experiencevalue of tangible cultural heritage, developed a model which I use to analyze the mediamaterial according to the criteria of aesthetic value, identity value, value of tradition andsymbolic value. In order to analyze the results of the analyze, I employ experimental andsociocultural theory and method, which means that I assume the experiences of the wolf andthe wolf hunt as related to a social and cultural perspective that partly depends on how weidentify ourselves and what kind of experiences and understandings we have of the landscapeand large carnivores. Since media affects how we perceive our surroundings and the wolfhunting attracted much attention in media, I found it interesting to examine how the wolf andthe wolf hunt were displayed in news articles and letters to the editor.
Tvåstegsavvänjning av köttraskalvar med hjälp av nosbricka :
When beef calves are weaned abruptly at 5 to 6 months of age this triggers a strong stress reaction, since the animals have not yet untied the bonds to their mothers or stopped suckling. This is displayed as extensive vocalization and restlessness. Attempts to diminish the negative effects of weaning on sucking calves have been showing varying results.
The study presented here emanates from the observation that when calves are weaned without human interference they are only prevented from suckling, but are still allowed to have social contacts with their mothers. The hypothesis was that calves weaned in two steps would be calmer, gain more weight, and be healthier than animals that were abruptly weaned. To investigate this, 15 calves where weaned in two stages (Group 2), by fitting the calves with nose tags that prevented them from suckling during 5 days prior to the separation of the cows and calves.
Samband mellan hull, underhudsfett, levande vikt och fruktsamhet hos SRB och SLB :
After parturition the energy demand for milk production is greater then the energy provided from the diet. The cow mobilises therefore body tissues to compensate for the energy loss. Live weight and body condition scores decreases as a consequence of the mobilisation.
The aim of this study was to analyse the relationship between body condition score, live weight and subcutaneous fat depth measured by ultrasound and the changes during the lactation. Possible differences between Swedish Holstein (SLB) and Swedish Red and White Cattle (SRB) were also investigated.
Hur kan studie- och yrkesvägledaruppdraget förstås?
The main purpose with this study was to investigate how study- and careers counselors active in primary school, secondary upper high as well as colleges describe regarding satisfaction of assignments and suggestions on their development. The study also included in what extent pure guidance tasks cover these assignments as well as what criteria affects these.Six study and careers counselors were interviewed during this study, all active in the three separate educational programs. Their responses regarding what tasks are included in their assignments as well as experiences are in line with previous research. The conclusion drawn from this study shows deviational results in-between the three educational programs, this regarding guidance tasks in their assignments. The conclusion strongly pinpoints that criteria as ?time? and ?need of guidance? affect to what extent guidance tasks fills these study and career counselors assignments..
Jämförande studie av LEM2 och Dynamiska Redukter
This thesis presents the results of the implementation and evaluation of two machine learning algorithms [Baz98, GB97]based on notions from Rough Set theory [Paw82]. Both algorithms were implemented and tested using the Weka [WF00]software framework. The main purpose for doing this was to investigate whether the experimental results obtained in [Baz98]could be reproduced, by implementing both algorithms in a framework that provided common functionalities needed by both. As a result of this thesis, a Rough Set framework accompanying the Weka system was designed and implemented, as well as three methods for discretization and three classi cation methods. The results of the evaluation did not match those obtained by the original authors.