This thesis aims at determining the heat losses in a property vent stack and its roof valve. Upon request of a company, the vent stack is analysed for possible heat recovering solutions to be implemented, while relining of the drain system is executed and with a suitable payback time for the economic investments. The heat loss calculations are based on data for properties that are located in the Stockholm region, but also easy to change depending on the situation. The calculations are done on pipes made out of cast iron, which still is the most common type of drain pipe in Sweden, and these are the pipes that relining is usually made on. The calculations that needed to take several variables into account have been done in MatlabR2014a and the thermos dynamical properties that were used in those calculations have been extracted from EES.Three different types of heat losses in the vent stack have been taken into consideration in this thesis.

Plasmacytos är en kronisk, persistent och progressiv viros med hög dödlighet och allvarliga reproduktionsproblem som ofta kallas Aleutian disease (AD). Sjukdomen drabbar i huvudsak mink och är ett stort problem på minkfarmer, men kan även drabba vilda mård- och hunddjur. Undersökningar för att kartlägga utbredningen av plasmacytos i den vilda minkpopulationen har inte tidigare gjorts i Sverige. Nittio minkar från hela Sverige obducerades och provtogs avseende antikroppar mot ADV (Aleutian disease virus) och av dessa var 41 stycken (46%) seropositiva, vilket är en hög siffra jämfört med våra grannländer. Infektionen visade sig vara spridd över hela Sverige, men det förelåg en tydlig säsongsvariation där en högre andel seropositiva minkar påträffades på våren.

Background: Inflammatory bowel disease (IBD) includes Crohn´s disease (CD) and ulcerative colitis (UK). The diseases are chronic and have a pattern of relapses interspersed with relatively symptom-free periods. Common symptoms during relapse are diarrhea, abdominal pain and weight loss. Since you have IBD for life it is important to find ways to relate to and cope with the disease. In that process a nurse can be of great help.Aim: The purpose of this literature review was to increase the understanding of how adult patients with inflammatory bowel disease experience their daily lives.  Method: The method used was a literature review.

Animals in zoos live in small enclosed areas. If a pathogen is introduced to the zoo, the animals are extremely vulnerable. The highest risk of introducing new pathogens occurs when new animals are introduced to the collection. Therefore it is essential that zoos have a protocol in place for disease prevention. This review has studied literature on the subject of disease prevention protocols when translocating animals between zoos.

Denna rapport behandlar en analysmodell som använts för att analysera Half Life 2-seriens level design. Utifrån denna analys av Half Life 2-serien skapades sedan ett verk baserat på de data som samlats in. Verket kallas Project 25. Målet med Project 25 var att skapa en spelupplevelse som level designmässigt är så lik den kommersiella spelserien Half-Life 2 (Valve Corporation, 2004), Half-Life 2 Episode 1 (Valve Corporation, 2006) och Half-Life 2 Episode 2 (Valve Corporation, 2007) att en spelare inte skulle kunna uppleva någon skillnad i kvalité.Denna rapport är indelad i tre delmoment. Först gjordes en förundersökning där tempoväxlingen i Half Life 2-serien analyserades, sedan skapades själva verket och slutligen utfördes en kvantitativ enkätundersökning i syfte att försöka verifiera om verket uppfyllt sitt mål eller inte.

The objectives of this study was to examine the prevalence of hypertrophic cardiomyopathy in a family of British Shorthaircats to determine the mode of inheritance and to investigate if the disease was associated with a mutation in myosin binding proteinC (MyBPC3). The family comprised 28 cats, seven male and 21 females. The cats underwent a physical examination, including cardiac auscultation, and an ultrasound examination. Blood was collected for DNA- analysis. The blodsamples were sent in a buffer solution to Kathryn Meurs, Washington State University, USA for analysis, where the genes coding for MyBPC, Troponin I and T were characterized using microsequencing technique. Out of the 28 cats, 8 were diagnosed with HCM, 2 were diagnosed with congenital heart disease but had no evidence of HCM.

Chronic obstructive pulmonary disease (COPD) is a chronic lung disease. The disease is the fourth leading cause of death and more than 5 percent of the adult population worldwide is affected.The aim of this study was to investigate the association between periodontitis and COPD.Search for material for the literature review was done in the medical database PubMed where the keywords were: "Chronic obstructive pulmonary disease" and "Periodontal health or periodontal disease". The result is based on twelve studies that were extracted and analyzed. The studies have investigated pocket depth, attachment loss, plaque index, bleeding on probing and bone loss. Ten studies compared a COPD group with a healthy control group, one study compared two COPD groups and one study examined a COPD group and a group with other lung diseases.Most studies found that people with COPD had a higher incidence of pocket depth, attachment loss, plaque index, bleeding on probing and bone loss.

Aim: The aim of this study was to investigate the quality of the social network in regard to young adults, with psychological disorders, and their possibilities to be open about their disease. In addition the study aimed at identifying possible causes to perceived difficulties by young adults to talk about their disease. Method: The survey was a quantitative study with descriptive design. The data was collected using a study-specific questionnaire on a clinic for young adults with psychological disorders, between 18 and 25 years of age. Out of 123 potential participants 79 (64 %) answered the questionnaire, of which two were excluded because they did not see themselves as suffering from mental illness. Results: The results showed that the participants of the study stated that they had a social network and the majority (90%, n=69) considered they had someone to talk to about their disease, but most of them wanted to be more open about their illness.However, the majority had some form of difficulty to talk about their disease with their social network. The most common specified causes were to feel ashamed of their disease and that the mentally ill persons did not think they would be properly understood.Almost the half of the participant experienced that they had some form of difficulty to be open about their mental disorder in front of health professionals and the most common specified causes was that the participant did not thought that they would be properly  understood  or that they did not felt confidence before the health professionals. Conclusion: Young adults with psychological disease have difficulty to be open about their disease, partly because of stigma.

In using a qualitative method have I interviewed six women and six men taking care of their wives respectively husbands suffering from physical disease, disfunction or demental disease. The purpose was to find out whether male and female caretakers were differently influenced in their situation, relationship and in their partners, when they became caretakers of their spouse, depending on what the partner suffered from.The results showed that, when a husband or wife was hit by disease or disfunction, the caretaker was influenced both in the partners situation, the relationship and the role towards the partner. The couple still lived in a close relationship and could communicate. For the carers spouse suffered from a demental disease, there was no communication as before or possibility to remember. The carers also felt the loss of community, nearness and sympathy.

This thesis is done in cooperation with SWECO Energuide in Växjö. They have been assigned by SKB in Oskarshamn to renew their electrical power supply and the ancillary processing systems in their Central provisional storage of spent nuclear fuel, CLAB. Today in the CLAB facility, the spent fuel is cooled down with water pumps, driven by asynchronous induction motors, where the water is regulated by mechanical valves to the desired flow. After the upgrade, the engines will be powered by AC drives that can control the pumps by changing the rotational speed and thus change the water's cooling effect on the nuclear fuel. In this study, I investigated the interference AC drives causes the feeding network and how to go about averting them.

Introduction: We are facing an aging population, which means that the incidence of age related diseases, such as Alzheimer's disease, are expected to increase. In the current situation there is no cure for the disease, whereupon it is important to develop preventive strategies. Objective: To examine the association between Alzheimer's disease and physical activity. Method: A systematic literature search was done to identify the current state of knowledge from the year 2006 onwards. The reason for this limitation was that the SBU commissioned a systematic literature review in 2006, where the relationship between physical activity and Alzheimer's disease could not be determined.

The purpose of this work is to find out if the suctionvalve to the salivaejector for dental equipment in a simple way can be improved or if a new design is needed. The result of the examination of the suctionvalve shows that the friction between the piston and the seal is high and that this causes the valve in a few cases sheaves. The study concluded that only small changes in material or detail, improve the component..

Cardiovascular disease is the leading cause of death in the Western world. For persons who have had a myocardial infarction the following rehabilitation and the group training, which is a part of this, are very important. The cardiac rehabilitation is designed to limit the physiological and psychological effects of cardiovascular disease. Purpose: This study aimed to examine how patients with cardiovascular disease experienced group training in relation to the International Classification of Function, Disability and Health, ICF. Method: A qualitative interview study was performed according to Malterud, inspired by the Grounded Theory method.

Venous leg ulcers are a chronic disease mostly among elderly individuals. The leg ulcers are often painful and interfere with the individual?s daily life. The aim of this literature review was to describe individuals? experiences of living with venous leg ulcers.

It is well known that dogs often have Helicobacter spp in their stomach. The importance of these bacteria in the development of gastrointestinal disease in dogs is still unknown. In humans, Helicobacter pylori is a causative agent of chronic gastritis and gastric ulcers. In contrast to humans, dogs seldom harbour naturally acquired H. pylori.