During cold winter days it is likely that people in buildings with older windows or high glass facades experience thermal discomfort due to cold air down draughts. Earlier work has been aimed at finding analytical methods to predict the speed of the airflow in a room and in practice heating appliances are often placed beneath the windows to reduce the draught along the floor. In a study from 2012 Mohammad Parchami developed a method for estimating the required heating power to counteract the downdraught with such heating appliances. In this study, Computational Fluid Dynamics (CFD) was used to evaluate the usefulness of Parchami?s method and also to examine the potential of adapting the depth of the inward window sill as a means of decreasing the down draught.

Fetma och övervikt är ett allt mer vanligt problem över hela världen och därav ökar även överviktskirurgin. Gastric bypass är den vanligaste metoden i Sverige och ses som ett redskap för viktminskning. För att bibehålla viktminskningen spelar andra faktorer än operationen en roll hos patienterna. Studiens syfte var att finna framgångsfaktorer vid en bibehållen viktminskning postoperativt. Metoden var av fenomenologisk narrativ karaktär och datainsamlingen skedde med hjälp av intervjuer.

Accounting has been critized for being one of the leading factors in the latest financial crisis. One of the primary problem areas was identified as delayed recogonition of losses on financial instruments. Consequently, a new impairment model is being developed and is to be namned expected loss model. The difference from the present model, incurred loss model, is that it takes losses into consideration on an much earlier level. Even though the model may be theoretically feasible, in practice it may implicate a number of issues.

This Master thesis discusses the development of a virtual human soft tissue object for use in exercise applications of various medical procedures.The soft tissue object to be developed shall look like, feel like and behave as living human tissue. It shall give the user a realistic feeling of weight, softness and roughness, and shall behave in a correct way for exercise purposes. The soft tissue model is to be used in a three dimensional stereo graphic environment with haptic feedback. A prototype for practicing the procedure of inserting a catheter is built. The prototype is used to evaluate the potential of the virtual environment for medical exercise applications, and to assess the realism and usability of the soft tissue object.

The use of spread spectrum signals has increased dramatically in military applications. Finding methods for detecting and positioning of these signals have become interesting research areas for signal intelligence purposes. One method is to measure the time difference of arrival (TDOA) that occurs when two receivers are synchronous and spatially separated. Based on the TDOA-technique an audio-demonstrator has been developed and implemented. This report describes the theory for how sound received in microphones can be used to extract information about the transmitter?s position from the measured time difference.

The Annexin-V/propidium iodide (AV/PI) assay detects early membrane changes in spermatozoa and viability using flow cytometry. It is an objective method that evaluates a much larger number of single spermatozoa compared with the usual estimation of motility, the most commonly used method for routine sperm evaluation. In the present study four ejaculates from four stallions were used in a split-sample design to investigate whether and how the number of intact spermatozoa is affected over time and after incubation at different temperatures, either those recorded during shipment of stallion semen for AI (9 or 5°C) or room temperature (20°C). The Annexin-V results did not reflect the motility results that were monitored in parallel. While motility decreased over time, the number of spermatozoa with intact membranes (viable) remained unchanged for at least 21 hours following a short period of initial instability.

Syftet med denna studie var att uttyda faktorer som bidrar till en långvarig beteendeförändring. Beteendeförändringar är i regel svåra att vidmakthålla och forskning har visat att ett flertal faktorer krävs för att nå ett långvarigt ihållande. Exempel på faktorer var känsla av sammanhang, kunskap, självkänsla, självtillit, reflektion, medvetenhet, motivation och gruppstöd. En fallstudie har genomförts på en viktminskningsgrupp för att se resultatet ett år efter deltagandet. Fem personer svarade på postenkäterna som skickades ut i uppföljningen.

With increasing traffic congestion problems in bigger cities, it is becoming more and more important to provide the traveller with correct information about all transport alternatives. When doing that, the traveller gets the opportunity to make the best decision based on the current traffic situation. Instead of traditional travel planners, where public and private transport modes are presented separately, the co-modal travel planner offers a combination. In order to make the comparison correct and fair, the travel times have to be estimated realistically and on equal basis. This master thesis focuses on how to estimate travel times in the city of Stockholm for journeys by cars, public transport, bicycles and also for walking.An investigation of the available data on maps and travel times shows where the currently used methods are lacking.

By comparing the experience off interaction in a life world with a drug habit and a life world without a drug habit you might find how they differ. We asked four former drug abusers in four semi structured interviews to describe their experiences off interaction under these two circumstances. The difference between the two life worlds when it comes to interaction is that in the drug abusing life world our informants describe that communicative action has to stand back for a more goal oriented action. In the drug free life world, communicative action on the other hand is experienced as the most important action. The difference is about wether interaction is goal oriented or oriented at understanding.

Background: Many cancer patients who get bone metastases live longer thanks to the successful research and development of medicines during recent years. Many studies show general health benefits from physical activity. For patients with bone metastases the possibility of physical activity perhaps should limit? Nurses at oncological units are often in lifelong contact with this group of patients. It´s therefore important to have knowledge about the bone metastases and how it influence the patient´s possibility of performing physical activity in order to support and encourage the patient to safely physical activity.Aim: To describe the patient´s possibility of physical activity with metastases to the bone.Method: A literature study.Results: The extension of the bone metastases shall be verified through X-ray.

With the advent of powerful multimedia capable mobile phones, the market for mobile services is flourishing. Zenterio AB's Halfpipe Active Desktop is a complete distributed mobile service platform a with a powerful server and platform-independent client. The communication between the client and server takes place over a GPRS-capable mobile network. The purpose of this thesis is to develop a secure communications protocol for use between the Halfpipe Active Desktop client and server. This is done by determining requirements, analyzing candidate protocols and then by designing the final protocol.

För att utvärdera effekterna av psykoterapeutisk behandling av obestitasopererade finns det ett behov av psykologiska mätinstrument med goda psykometriska egenskaper. Acceptanceand Commitment therapy (ACT) är en behandlingsmetod som har visat sig effektiv för gruppen obesitasopererade. Acceptance and Action Questionnaire for Weight-related Difficulties (AAQ-W) är ett formulär som används som utfallsmått i behandlingen. För attundersöka AAQ-Ws psykometriska egenskaper genomfördes reliabilitetsmätning med upprepad mätning samt beräkning av intern konsistens. Validiteten i AAQ-W testades genom samtidig mätning av mer etablerade mått samt en faktoranalys.

Hundreds of thousands of piglets are castrated without anesthesia in Sweden every year so that we may be guaranteed meat without boar odor. The smell appears while cooking meat of boar and is described as urine- and sweat-like. High levels of androstenone and skatole are considered the main factors behind boar odor. Skatole is a metabolite of the amino acid tryptophan, which is formed in the colon of all pigs. Androstenone is a steroid hormone that is released from the Leydig cells in the testes of boars.

The concerning issue of declining number of hunters in North America is also apparent in Europe and Sweden. When the bulk of research found on human dimensions and hunting participation has almost exclusively been done in the United States, this report seeks to add to the needed knowledge on a national level focusing on the causes of hunter declines related to social factors within Sweden. Using hunter data reaching from commune, county to National level, this report describes the correlation between a number of variables and the hunting participation in Sweden.The typical Swedish hunter lives in an area with low population density, the person usually has higher education, the living situation is stable with no recent moving and there is relatively good access to forest land. Persons with weaker connection to the Swedish culture such as foreign citizens, people with foreign background and people born outside ?the Nordic countries? are less likely to start hunt or participate in hunting.A strong relationship was found between the favorite game, moose (Alces alces), and the amount of hunters participating in the hunting.

Anorexia nervosa is a psychosomatic eating disorder that involves self starvation and fear of gaining weight. Our purpose was to study the methods of treatment available and the function of them. Another part of the purpose was to find out what kind of goals the treatment has and if an anorectic person can be cured. To understand the methods of treatment we also wanted to find out what the causes to the development of the disease can be. The questions were: 1.