Today evidence exist that environmental chemicals deteriorate male sperm quality and that testicular cancer is increasing. Bisphenol A (BPA) is a chemical with estrogenic effects used in the manufacture of polycarbonate plastic and are found in, for instance, plastic boxes, feeding bottles and food containers. Much of the research on how men's reproductive ability is influenced are performed on rats. This review article complies how male rat reproduction is affected by BPA as a model for humans. Studies have investigated how sperm are affected, hormonal changes during reproduction and how reactive oxygen species (ROS) affects sperm.

som sjuksköterska är det oundvikligt under ens yrkesverksamma liv att inte komma i kontakt med döden och döendet. Kunskap om hur patienternas förmåga till att kunna känna hopp och hur detta kan stödjas av sjuksköterskan ter sig viktigt för att kunna erbjuda en hög kvalitativ vård i livets slutskede. Syftet med denna studie var att undersöka: Hur hopp kan inges/upplevas i livets slutskede samt syftade studien vidare till att undersöka om patienters upplevelser av hopp överensstämmer med frågorna i instrumentet Herth Hope Index (HHI-S)? Metod: tio kvalitativa artiklar granskades. Resultat: Fem kategorier tolkades kunna representera patienternas upplevelse av hopp: socialt stöd, mål, andlighet, syn på livet samt kommunikation.

This study aimed to investigate whether lambs show anticipatory behaviours in a holding pen prior to entering a known arena, whether the holding pen experience prior to the arena exposure affects their play expression in the arena and whether their behaviour (in home pen) is affected if arena access is denied. Twenty pair-housed male lambs (average 14 weeks old), were exposed, in chronological order, to five treatments. Holding pen treat-ment (HP-control): Each pair was led into a holding pen (2.7 m2) and remained there for 5 minutes before returning to their home pen (6 m2). Holding pen ? arena treatment (HP-A): Each pair was led into a holding pen for 5 min and then was allowed access into the arena (22 m2, containing two hanging chains, one ball and one platform) for 15 min before re-turning to their home pen.

The aim of this study is to analyse how children?s literature for ages 6 ? 8 is adapted to pupils with reading difficulties. The material used for analysis in this study is six children?s books, examining some of the criteria by which a text is classified as easy-to-read. The result of the analysis shows that there is a possibility for pupils with reading difficulties to read something other than easy-to-read literature if it is carefully selected.

The aim of the study was to examine if the benthos in a restored portion of a small lowland stream south of Linkoping differed from two non restored reference areas two years after restoration. The reference areas were one stretch downstream and one upstream stretches of the restored stream. The benthic invertebrates were collected using standardized kick sampling. In order to classify the communities and estimate any differences, three different indices were exercised. In addition rank-abundance curves and checklists were used to get a picture of species composition.

Då mängden information bara ökar, så ökar även behovet att ha åtkomst till informationen lättillgängligt. Detta skapar då ett behov för ett gränssnitt som kan söka bland informationen. I detta arbete har det undersökts om en implementation av Vector Space Model ger mera relevanta resultat jämfört mot en enklare implementation som inte baseras på Vector Space Model. Sökningen utförs i en relationsdatabas med ett inverterat index, databasen fylls med data ifrån internetforumet Stack Overflow. Genom att bygga en sökmotor som returnerade två olika resultatlistor för varje sökning så fick tio användare testa och utvärdera resultatens relevans.

Handel med derivat har ökat explosionsartat på den svenska marknaden de senaste åren med möjligheter att handla i derivat med ett stort antal olika underliggande tillgångar. Denna utveckling har dock inte skapat möjligheten att handla derivat med utvecklingen på den svenska fastighetsmarknaden som underliggande tillgång.Möjligheterna att idag få fastighetsexponering utan att direkt äga fastigheter är begränsade och har låg korrelation med utvecklingen på den svenska fastighetsmarknaden. Ett ämne som har diskuterats flitigt innan fastighetskrisen 2007 är möjligheten att handla derivat med den svenska fastighetsmarknaden som underliggande tillgång. Problemet har varit att det inte funnits ett tillförlitligt index som man kan använda för att prissätta derivatet. Nya typer av index har utvecklats de senaste åren och därmed skapat en möjlighet att introducera fastighetsderivat som produkt på den svenska marknaden.För att kunna handla med fastighetsderivat krävs att en del förutsättningar uppnås däribland likviditet, ett fungerande underliggande index, en osymmetrisk marknad och en aktör som agerar som någon typ av återförsäljare av produkten det vill säga någon som erbjuder handel i fastighetsderivat.

As of 1 July 2008 the revised Swedish Code of Corporate Governance applies to all Swedish companies whose shares are traded on a regulated market in Sweden. The purpose of this thesis is to investigate whether the introduction of the revised Code has affected the disclosure practice among Swedish companies. We investigate a sample of 43 small and mid cap companies listed on the OMXS Exchange that has previously not been covered by the regulation. We develop a disclosure index, measuring the disclosure level in annual reports before and after the introduction of the Code. The results from the study show that disclosure level has not increased after the introduction of the Code.

Rysslandsfonder är en av många fonder som finns tillgängliga för att investera i. Ryssland har haft en starkutveckling de senaste åren. I uppsatsen görs en jämförelse av utveckling och risk mellan Rysslandsfonder och den svenska markanden representerad av SIX Return index. Utvecklingen hos Rysslandsfonderna har månadsvis under perioden 1999-2005 varit betydligt mer gynnsam än för det representerade Sverige index. Risken med standardavvikelse som en indikator för detta visar att det innebär en större risk att investera i Rysslandsfonder.

To get rid of our dependence on fossil fuels we need to make use of renewable energy sources like wind power to a greater extent. Even though wind power is a renewable energy source it can still cause some problems for the close environment. One of the problems is shadow flickering. When the sun is low and the wind blows in a direction so that the rotor blades are positioned at right angles to the sunbeams and ?cut? the sunbeams off.

Swedish trade unions are engaged in several activities at the European level. One of these isthe sectoral social dialogue, an institutionalized part of the European Union. This bachelorthesis examines the motives for Swedish trade unions in three different sectors to engage themselves in the European social dialogue. The three sectors are chosen because of their differences according to their exposure to competition caused by ongoing globalization and europeanization processes. By interviewing central informants in trade unions which are active in the three dialogues this thesis seeks to learn more about the motives stated by the trade unions.

The aim with this thesis came out of a strong interest for Passage Retrieval. Our intention has not been to evaluate an IR-system. Instead our goal has been to analyze the result of indexing documents and their passages. We have been studying the weights of the different terms in the different indices, in comparison with other parameters like frequency, normalized frequency and the inversed document frequency. Further more we have been looking at how the weights are spread using for instance the standard deviation.

The purpose of this paper is to examine the subject indexing in the bibliographic databaseKVINNSAM at Kvinnohistoriska samlingarna. the documentation and information centre·of Women's studies in Sweden.The focus of the study is the list of index terms produced at this centre. The paper tries to answer the following questions: a) How has the indexing developed? b) How can it be improved? c) Is there a need for feminist indexing? The method of the study is primarily observations and interviews. Texts and ideas by Birger Hj¢rland, D.

More than 1000 Swedish Warmblood foals are shown every year at foal inspections which are arranged around the country. Six traits are evaluated at these inspections: type, head-neck-body, correctness of legs, walk, trot and canter. No previous genetic studies have been done on the data from these evaluations. The purpose of this study was to do genetic analyses of the traits which are evaluated at foal inspections. The purpose was also to see if there are any correlations between the results of the foal inspections and the results from the tests of three-year-old horses.

It's an everyday experience shared by many that nature can be of help in relieving pain, reducing stress, support mental recovery etc. In the last three decades or so this experience has also found support in a large number of scientific investigations. Among other things the experience of nature has been shown to reduce stress and pain in patients and to boost concentration and reduce impulsive behavior in children. Most of this research however has mainly been concerned with the visual modality. In this thesis the aim has been to focus on the auditory modality in this context by trying to reveal some effects on people from the exposure of nature sounds played indoors in three different environments: a grammar school class room, a kindergarten play room and a post-surgery wake up room at an intensive care unit.