Preservation of cells and tissues by freezing at temperatures below 70°C has led to new possibilities for the storage of germ cells for fertility preservation. During the freezing process problems might occur, the greatest being ice crystallization which can cause membrane destruction and thus cell death. To minimize this risk, solutions that reduce the freezing point can be added to reduce crystallization and increase survival rates. These solutions are called cryoprotectants. The best method for freezing is still not known.The aim of this study was to analyze the effect of various parameters on the survival rate of human semen frozen with liquid nitrogen.

Personal assistance from a welfare perspective, offering a variety of reasons is perceived as a different design assistance than is usually there in the public social assistance depending on the strong foundations of the handicap principle autonomy and influence is in terms of how, what and when the operation is performed. The aim of our study was to highlight the handicap principle influence and autonomy in the operation of personal assistance. It is intended both to illustrate the legislature's intentions and ideologues expectations and also to examine a number of managers and personal assistants experiences of the conditions that exist for realize these principles. In order to answer our purpose and our issues, we have chosen a qualitative approach. We have first conducted a literature review and secondly implemented six interviews with personal assistants and managers.

To be able to provide the growing human population with food, the productivity of the animals as well as land use needs to be improved and intensified. Hence, understanding the behavior of animals is crucial both for animal welfare and productivity as well as the management of the cattle. There are many factors affecting the grazing behavior of cattle in tropical conditions, such as human-animal interactions, herd management, breed, season and temperature. The purpose of this study was to investigate the grazing behavior of two tropical cattle breeds, Ankole and Boran cattle. Kenyan Boran belongs to a zebu type of cattle and is preferred to many other breeds due to the higher productive and reproductive capacity and adaptability to tropical conditions.

The purpose of this study was to analyze how the key staff concept is used in residential care for children and young people and which role the key staff concept plays in the organization.The study was based on semi-structured qualitative interviews with six key staff and two managers from two different residential care facilities for children and young people. The theoretical perspective used was the neo-institutional theory and Hasenfeld´s term Human service organizations.One of the conclusions of the study was that the key staff describe that they have a central role when it comes to the treatment of the children. Another conclusion showed the variety of tasks that the key staff have, like the administrative work that they do. They also have an educational role, similar to the one that parents normally have which means that they are responsible of parenting the children. They also described themselves as a link between the children and their social network.

Latvia has been an independent state twice, the first time during the years 1918-1940 and the second time from the year 1991 and ahead. During these two periods Latvia has been a destination for tourists. The aim of this study is to describe how Latvia as a destination has developed during the years of independence. One further aim is to compare what Latvia?s tourism industry looked like during the same periods to descry similarities and differences.

The purpose of this study is to examine some factors that make a human grouse hunter to prolong and increase its hunting effort. The theory of optimal foraging is used for explaining their behavior.The data of this study is collected from a web-based inquiry from 2007 answered by grouse hunters in Sweden. The method that has been used is mainly bivariate statistics and logistic regression analysis.Key findings shows that an experienced grouse hunter has more than 5 times the chance of prolonging hunting effort when grouse density is high, compared to a beginner grouse hunter. On the same time experienced grouse hunters also stop hunting in advance when grouse density is low to a larger extent than inexperienced hunters. Other factors of importance for prolonging the hunting effort for a day are age and the travel distance to the hunting area.

Changes in the labour market combined with an increased media coverage of managers, have resulted in the rise of a new human due diligence industry. The use of background checks has lately become increasingly popular on the Swedish market and many companies use it as an evaluation tool when recruiting. This study investigates differences in the background screening procedure for recruitment to executive management positions and lower level positions. It also aims to answer why background checks are conducted, using a cultural and a functional perspective. The report takes an abductive approach and data has primarily been gathered through a survey directed to large Swedish companies.

The flow of information in road vehicles intensifies as new techniques develop. Informationsources such as cell phones, navigation equipment and radios demand the driver?s attentionwhile he or she must stay focused on the road to perform a safe driving. Today the visualinformation inside the vehicle is mostly located on the dashboard, which forces the driver tolook down when shifting attention between the environment outside and the informationinside the vehicle. One way to avoid this is to useHead-up Display (HUD), a technique thatprojects information in the visual field of the user.This master thesis has been performed in cooperation with Scania CV AB, a world leadingtruck producer.

My main purpose for this paper was to find out what the four teachers I interviewed thought about the design of their classroom and how they linked that to pedagogy, pupils learning and policy documents. I also wanted to find out if classroom design were something they discuss and reflects on in the college.My questions for this study were: What do some teachers who work in the early ages in the school think about the classroom design? Do these teachers link the classroom design to policy documents or pedagogy? Do these teachers consider classroom design to be something that should be discussed in the same way as other factors (for example teaching aids, resources etc.) within the college?My method was to make qualitative interviews with four teachers, analyze their answers and link them to my main theories and research in the area of the study. My main theories were multimodal communication, which means that there are several systems of signs in communication, which all have an essential function for the meaning of the communicated. It also means that learning happens both individually and socially and that school is a social construction, and that the system of opportunities and boundaries in which it takes form is mediated within our multimodal systems.

A plant's defensive ability against herbivore attack can be influenced by many different factors, one of them being domestication. During human selection to improve the yield of plants, the resistance against herbivore attack can have been lowered, due to a trade-off for use of resources between these traits in the plants. In this thesis I investigated the effect of domestication on resistance against herbivorous insects in cotton plants. I used different varieties and species of wild and domesticated cotton in three different experiments. A feeding assay was conducted, the mortality, development time and pupal weight of larvae of the Egyptian cotton leaf worm Spodoptera littoralis was studied. In a second experiment the preference of the root-feeding beetle Agriotes spp.

HR-området har på senare år genomgått en förändring som inneburit en ökad strategisk och värdeskapande roll, vilket ökar betydelsen av HR:s plats i ledningsarbete. Samtidigt som detta skett har vikten av fler kvinnor i ledningsarbete och styrelser blivit ett allt mer omdiskuterat ämne i dagens samhälle och i media. Då HR är en kvinnodominerad profession innebär deras plats i ledningar för det mesta att en kvinnlig chef träder in i en oftast mansdominerad ledningsgrupp. Detta tar HR och kvinnorna ett steg närmare makten. Men hur stort inflytande har dessa kvinnor i ledningen egentligen?Syftet med denna studie har varit att undersöka ledningsplatsens betydelse för upplevt inflytande i organisationen.

This essay is a comparative analysis with focus on Jean-Paul Sartre´s existentialism and Ferdinand Alquié´s cartesianism. They both represented the French philosophy of conscience in the early and mid 1900s. Because of that, they had similar ideas concerning the human conscience and freedom of the mind. But how did they come to those conclusions? And in which cases did they differ from one and other?.

Syftet med denna studie har varit att studera hur Talent Mangement (TM) definieras och om det är ett nytt fenomen inom Human Resources (HR). Detta har undersökts genom en jämförelse mellan hur TM definieras i tidigare forskning och hur HR chefer från fyra företag definierar, arbetar inom området samt upplever TM. Det bakomliggande intresset kommer från att TM anses vara en viktig och övergripande företagsstrategi.Studien har en kvalitativ ansats och datamaterialet har insamlats genom semistrukturerade intervjuer som har grundats på tre teman för att besvara frågeställningarna. Materialet har sedan analyserats mot tidigare forskning inom TM för att jämföra definitioner och arbetssätt. Forskning inom TM och arbetsmarknadsutveckling har även analyserat för att skapa en uppfattning om bakgrunden till TMs uppkomst samt om detta är ett nytt fenomen.

The aim of this Master thesis was to examine how libraries at Swedish colleges and universities make Open Access journals in physics available to users. We examined if, where, and how the 50 Open Access journals that are listed in the Directory of Open Access (DOAJ) under the heading Physics (General) were made available to the public at 19 Swedish colleges and universities. We also examined possible patterns regarding qualities in the Open Access journals and to what extent the libraries made them available. For this descriptive statistic was used. The selection of library portals that were included in the study were those Swedish colleges and universities that teach physics.

This study was a final thesis, for the bachelor program in civil engineering at theUniversity of Uppsala, which was made on behalf of Riksbyggen in Uppsala. Acomparative study of two stain renovation methods; tradition pipe replacement andrelining was done with an environmental perspective. A simplified life cycleassessment (LCA) was done according to the International Organization ofStandardization (ISO) with the LCA tool Eco-indicator 99, in order to be estimate theimpact on the environment. LCA is a method that follows a product or a system?from the cradle to the grave?, which means that all the environmental impact over alifetime is considered.The work was executed by using a stairway with nine apartments in a house called?Uppsala Hus 9? as a reference object, which was provided by Riksbyggen.