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859 Uppsatser om Genetic parameters - Sida 12 av 58
Djurvänlig hantering av lantbrukets djur i samband med transport
Handling, loading, transport time and unloading in connection to transport of farm animals affect animal welfare. Induced effects include both psychological and physiological stress responses in animals. The physiological parameters may be measured through blood analysis while behavioural changes often manifest themselves through increased vocalisation, escape attempts and apathy. Physiological parameters are additional parameters of importance when measuring animal stress responses.
The handlers behavior during transport has been shown to have major impact on animal welfare and the quality of meat. Animal friendly handling and driving of animals create a more manageable work environment for the handlers.
To further increase animal welfare in connection to transport, stables should be built with well adapted drift passage and ramps on the transport vehicle.
Comparison of three IVC systems for mice, with focus on growth and nest building in juvenile mice
Today the individual ventilated cage system (IVC-system) is the most commonly used system when housing rodents. IVC systems are designed to control both supply and exhausted air at cage level, as well as temperature and relative humidity in the cages. This creates an optimal environment for the mouse and at the same time a protection against the risk of cross-infection between cages and the outside environment. The aim of this study was to evaluate the health and welfare for two different strains of laboratory mice (NMRI nude mice and C57BL/6NCrl mice) in three different kinds of IVC-systems; Arrowmight, Allentown and Tecniplast. 108 mouse pups from each strain (in total 216 mice) were selected after weaning at an age of three weeks and tested during 5 weeks.
Bootstrap som hjälpmedel att öka noggrannheten och bedöma precisionen vid probitregression, med tillämpning på hörselmätningar
In many biomedical contexts, e. g. when evaluating hearing disorders, the data obtained can be described as pairs (x1, y1), ?, (xn, yn) where x is a quantitative variable and y a 0/1 variable whose probability of taking the value 1 is a monotonic function of x. One way of analysing such data is to perform probit regression; thereby two parameters, b0 (= the constant) and b1 (= the slope) are estimated; the interest centres around m = -b0/b1, i.
Comparison between anesthesia with sufentanil-midazolam and sevoflurane in medetomidine premedicated rabbits undergoing ovariohysterectomy
Rabbits carry a high risk of anesthesia related death. This study was part of a project to develop a form of total intravenous anesthesia (TIVA) with minimal effects on cardiac, respiratory and metabolic parameters. In the study, TIVA with sufentanil and midazolam (group TIVA, n=9) was compared with inhalation anesthesia with sevoflurane (group SEVO, n=9) in female rabbits undergoing surgery (ovariehysterectomi). All rabbits were pre-medicated with medetomidin and carprofen before anesthesia induction. Anesthesia was induced with TIVA (2.3 ?g/ ml sufentanil, 0.45 mg/ ml midazolam) at a rate of 4 ml/ kg/ h and the mean induction dose was 0.4 ?g/ kg of sufentanil and 0.1mg/ kg of midazolam.
Inverkan av nederbörd, temperatur och frost på årsringens egenskaper hos boreal tall (Pinus sylvestris L.) :
The wide distribution range of our boreal pine (Pinus sylvestris L.) provides a great variation in growing conditions and climate/weather factors that influence the wood development of the trees. A great number of extensive studies have been conducted over the years in order to clarify growth trends of this and other species over more or less wide-ranging areas.
In this thesis effects of weather factors were instead compared between different forest stands from the about same geographical location. The effects of precipitation, temperature and frost on the year ring characteristics of pine were studied in the research forest of Svartberget Vindeln, in northern Sweden. The stands differed in site index and silvicultural treatment; fertile ? high stem density, fertile ? low stem density, poor ? high stem density and poor ? low stem density.
Beräkningsmodell för massbalanser för Slottshagens reningsverk
In the next few years the pollutants loading at the Slottshagen wastewater treatment plant in Norrköping is going to increase due to the reason that one of the waste water treatment plant in the district will be shut down.A survey of how these different pollutants are divided in the treatment process is therefore necessary for mapping out both the loading and treatment efficiency.This can be achieved by studying mass balances.Mass balances were carried out for the water treatment process for the mechanical/chemical,biological and the chemical stage.The mass balance studies show that the treatment efficiency was very good. However in order for the mass balances to be quite consistent and to ensure complete coverage of results and conclusions i.e. more reliable results, sludge samples should be collected and taken at different times per day and the influent rate should be investigated.In this work mass balance has been set up in order to illustrate and identify the factors that should be considered and taken care of for further estimation using mass balances in the future. Furthermore this survey results in a calculating model for the mass balances at thisplant.This calculating model is used as a tool to facilitate future calculations for mass balances for the water treatment process at Slottshagens wastewater treatment plant.Moreover it provides a basis for carrying out further estimation of the treatment process in the near future.In this project the importance of some operating parameters was also taken in consideration.This calculating model can be modified so that calculations of such operating parameters i.e. sludge loading and sludge age can be easily performed.Such information can be used further to evaluate different operation alternative in order to ensure an optimal use of the treatment process with in the plant..
Geoteknisk bärförmåga hos borrade injekterade pålar i åsmaterial Fältförsök: Slussen i Stockholm
This thesis describes the redesign ofequipment designed for drying bags thatis used in Fresenius Kabis´manufacturing of their nutritionmedicine in Uppsala. The need of thistask arise during the start of thedevelopment of a new packaging line werethis equipment were meant to be used. Anevaluation of the bagdryers capacity andcapability was necessary.The work started with gathering ofinformation from suppliers of the usedcomponents and from the responsibleengineers for this equipment. Aneducation to learn how the equipmentworked and how to operate it were taken.That was followed by the creation of astudy plan were the tests were plannedto test different parameters effect onthe drying result and to see if thebagdryer managed to handle the bags ofthe correct format in the pace that theequipment should be designed for.The test results detected a need ofdesigning a unit with a function thatholds the bags in place while passingthrough the dryer in order to attainhigh quality results. The results werelater used for optimization of thedesign.
Metadon till hund : klinisk farmakologi
Methadone is frequently used as an analgesic drug for dogs although there are very few studies describing the pharmacokinetics of methadone in this species. In man methadone has a long half-life and there are considerable differences in pharmacokinetics between individuals. The dose interval is lengthened when the drug is used fore longer periods of time due to prolonged half-life. Therefore the drug dose must be adjusted individually. The purpose of this study was to study the fundamental pharmacokinetics of methadone in dogs, and to find an optimal drug dosage.
Hypertrofisk kardiomyopati hos Maine coon katter :
Hypertrophic cardiomyopathy (HCM) is the most common heart disease in cats. Maine coon is one of the breeds where the disease is overrepresented. Studies have shown that HCM is inherited as an autosomal dominant trait in Maine Coon cats. This finding has led to cardiac screening using ultrasound in the breed. The results of the screening are used in a national breeding program constructed to reduce the spread and incidence of HCM in Maine Coon cats.
"Jag tror att det är ärftligt och att det är biologiskt.. och så tror jag att det är.. eller ja.. jag tror att det är biologiskt". Konstruktionen av ADHD och DAMP i skolans och vetenskapens värld
The purpose of this study was to investigate the understanding of the diagnoses ADHD and DAMP within different professional categories in the educational system, how it is being addressed and how this affect their work with children diagnosed with ADHD or DAMP. We also wanted to shed some light on the debate between Kärfve and Gillberg, about whether the diagnoses of ADHD and DAMP are social constructed problems or biological and genetic disorders. More specifically, our study was of a qualitative nature and consisted of interviews with seven persons working in six different professions within the educational system. The respondents all worked in school environments but with varied roles and thus varied experience of children with ADHD/DAMP. The interviews and literature studies revealed the complexity of ADHD and DAMP and also the diversity of the debate regarding the diagnoses.
Uppgradering av robotsystem på Termisk sprutning, Volvo Aero
This thesis work resulted in a template for how the thermal spray process can be controlled through robot programs. The robots today and their programs need to be replaced, therefore a new structure which can be matched with the new robot systems is needed. The work is limited to only concern structured programming on the new robots on Thermal Spray Centre (TC) with the programming language Rapid. The basic data for the program was retrieved from interviews with concerned personnel at TC, from studies on process parameters for thermal spray and from existing specifications at Volvo Aero Corporation (VAC). The thesis work briefly describes the process thermal spray and the four methods used at VAC.
Fysikalisk modellering av klimat i entreprenadmaskin
This masters thesis concerns a modeling project performed at Volvo Technology in Gothenburg, Sweden. The main purpose of the project has been to develop a physical model of the climate in construction vehicles that later on can be used in the development of an electronic climate controller. The focus of the work has been on one type of wheel loader and one type of excavator. The temperature inside the compartment has been set equal to the notion climate. With physical theories about air flow and heat transfer in respect, relations between the components in the climate unit and the compartment has been calculated.
Hälsa i rörelse : Känslor kring att genomföra en genetisk testning ger hälsokorset ett ansikte
Hela det mänskliga genomet var sekvenserat i april 2003 och sedan dess har utvecklingen av genetisk testning avancerat snabbt. Sjuksköterskor kan komma att ha en central roll gällande att informera personer kring den genetiska testningen, rådgiva personer som genomgår genetisk testning och hjälpa dem att tolka resultaten. Genom att beskriva personers känslor kring att genomföra genetisk testning kan sjuksköterskor få hjälp till en ökad förståelse. Syftet var därför att beskriva personers känslor kring att genomföra en genetisk testning för genetiskt betingade sjukdomar med en möjlig dödlig utgång. För att få en överblick av det aktuella forskningsläget genomfördes en systematisk sökordsbaserad litteraturöversikt.
?Den frivillige soldaten.? : Manlighetsideal och legitimitet bland svenska frivilliga soldater samt det omgivande samhället under finska inbördeskriget 1918
This paper examines how the ideal of manhood is portrayed and constructed and how the participation of Swedish soldier volunteers are motivated and legitimatized. The purpose of this examination is to gain understanding and knowledge about the Swedish soldiers in the Swedish brigade, how they legitimatize and motivate their participation and how the ideal of manhood is portrayed and constructed. The study is based on material from the war archive in Stockholm. The empirical material is composed by letters and propaganda material. In the analysis of the empirical study, there have been two theories used which are Eric Hobsbawms historical method and theory about invented traditions and Peter Aronssons historical method and theory about ?historiebruk? and legitimacy.
Strålskydd :
This paper describes how radiation affects the body, the somatic and genetic effect that can occure in exposure of ionizing radiation and how to protect yourself against it. How
radiation affects the cells and why you can get cancer if you get exposed of a large amount of radiation is mentioned.
Research after a threshold is mentioned and what Sweden does today to improve the
radiation protection by laws and regulations.
Explaining the atom, what radiation is and how the ionizing radation interacts with the
atom. How backscatter affect the picture and the workers and how to protect yourself from
backscatter is mentioned. Radiation doses, dosimetry and rules for those who practise
radiation is shortly described..