Sökresultat:
851 Uppsatser om Hormonal analyses - Sida 4 av 57
Effekten av Bisfenol A (BPA) på hanråttors (Rattus norvegicus) reproduktion
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.
De olympiska vinterspelen i spalterna : En kvantitativ innehållsanalys av Sportbladets bevakning av OS i Sotji 2014.
The purpose of this study is to investigate how the Swedish newspaper Sportbladet watches over the Olympic games in Sotji, 2014. This study aims to find out why certain topics is more popular writing about and why others are not. The study also analyses the news distribution in terms of gender and nationalism.To find answers to this questions, a quantitative content analyses was used. The results is based on 220 texts collected from eleven days news reporting in Sportbladet. Ice hockey and cross-country skiing was, without a doubt, the most popular sports according to news, interest and reporting. These two sports occupied a great deal of space in the newspaper and also had most articles.Furthermore, this study shows the domination of men amongst news pages according to both space and frequency in Sportbladet during the Olympic games in Sotji. In spite of that fact, women was assigned more space in the news paper throughout the Olympic games compared to the daily reporting.
Kultur och ekologi i Amazonas: GIS-bearbetning av historiska data om indianfolkens utbredning
This study deals with some contested issues regarding prehistoric cultural development in Amazonia and the colonial impact on the native inhabitants of the area. It focuses on the relation between groups belonging the language families of Tupí and Gê, on one hand, and the different ecological zones that they inhabit, on the other. GIS mapping is used to visualise the distribution and movements of these groups in relation to ecology and the impact of European colonization. GIS is shown to be a useful methodology for analysing historical data derived from written sources and maps. The results of these analyses are discussed in the light of different theoretical perspectives.
Tritordeum : evaluation of a new food cereal
Tritordeum is the result of a cross between a wild barley (Hordeum chilense) and durum wheat (Triticum turgidum). Tritordeum have high viscosity and a nice yellow colour. The objective of this thesis was to evaluate Tritordeum lines HT 354, HT 361, HT 437, HT 2218 (JB3) and HT 1608 (JB1) for use as a new raw material within the food industry. Analyses made were on dietary fibre, fructan, ash, water content and colour. Compilation of data from analyses made for Agrasys an Agri-Food company in Barcelona having the commercial rights to Tritordeum, included Lutein and rheological properties.
Aktivering av en dissolvingmassa med enzymer före en konventionell viskosprocess
In conventional viscose manufacturing, a large amount of carbondisulfide is consumed. This amount has to be decreased to keep the production cost down and to reduce the environmental impact. The purpose with this work was to show if an enzyme treatment of a dissolving pulp could increase the degree of substitution in the viscose so that the amount of carbon disulfide consumed in the process could be decreased. Previous investigations by Kvarnlöf (2007), Engström et.al. (2006) and Henriksson et.al.
Individers erfarenheter av hur migrän påverkar det dagliga livet : En litteraturöversikt
BackgroundMigraine is a comprehensive endemic disease who is affecting both women and men, but with higher prevalence among women because of hormonal factors. Risk factors for the disease are female gender, hereditariness, depression and socio-economic factors. Migraine can be triggered by factors like stress, menstruation, irregular routines for sleep and unbalanced meals and diet. Migraine is a condition that causes a big suffering for the affected individuals.AimThe aim of this study was to describe individuals' experiences of how migraine is affecting the daily life, out of the aspects like working life, family life and social life.MethodA literature overview was maintained, and eight qualitative studies and two quantitative studies between the years 2003- 2014 were analyzed.ResultsThe analysis of the articles lead to one main theme; "Guilt, compensating and restrictions" and seven subthemes "Not being able to perform their best", "Met with incomprehension", "Not being able to take care of home and children", "Not enough", "Avoiding activities", "Always be prepared" and "Living with restrictions".ConclusionMigraine is affecting the daily life among these individuals in a great extent. The disease makes it hard to perform well at work.
Vänner med förmåner : positiva effekter av interaktion mellan människa-hund
The aim of this review was to examine scientific literature to determine what kind of physiological and psychological benefits derive from human-dog interaction, as well as attempt to uncover a possible mechanism behind these benefits and whether or not they are mutually beneficial.
A growing body of research indicates there are physiological and psychological benefits associated with human-dog interaction. Significant cardiovascular benefits have been linked with human-dog interaction, as have lowered blood pressure, cortisol and heart rate. Interaction with dogs is often associated with a feeling of social support and well-being, and dogs also seem to facilitate social interaction between people. Dogs? ability to buffer and reduce stress is also well documented.
A strong indication was found regarding a relationship between physical contact and benefits associated with human-dog interaction.
Enantioselektiv HPLC-analys med kirala stationärfaser bestående av makrocykliska glykopeptider och polysackarider
The purpose of this study was to evaluate enantioselective analytical methods by separation of the enantiomers of four drugs (citalopram, zopiclone, tramadol and methylphenidate) and their metabolites. The analyses were performed with HPLC-UV with columns whose stationary phases were based on macrocyclic glycopeptides (Chirobiotic V, V2 and T) and polysaccharides (Lux Cellulose-1, Cellulose-2 and Amylose-2).The Chirobiotic V column showed high selectivity for citalopram and its metabolites. High resolution was obtained using a mobile phase consisting of methanol, acetic acid and ammonia. High selectivity for the enantiomers of zopiclone and its metabolites were obtained on the Cellulose-2 column using a mobile phase consisting of acetonitrile and ammonium acetate buffer.The enantiomers of tramadol were separated with the Amylose-2 column. However, changes in the pressure arose, probably caused by the additive NH4HCO3.
Trots allt, en människa : En undersökning av två dagstidningars framställning av personer med fysiska funktionsnedsättningar
The aim of this study is to illuminate images and discourses, in which media describe people with disabilities. The purpose of the study will be fulfilled, by answering the following questions: Is it possible to discern categories of how people with disabilities are described in the media and is it possible to find associations to handicap models? We have chosen to focus on how media describe people with physical impairments and have made a content analyses of articles, based on the theoretic aim of this study, social constructionism, handicap models and earlier research. Underlying the analyses, are six articles from two Swedish news papers. The results of our research are divided in three categories: assumptions which are taken for granted, hidden meanings and contradicted categories.
Pudelns kärna : Vad det innebär att "göra en pudel" ur ett kommunikativt perspektiv
In this essay I want to investigate how the poodle strategy affects a person?s credibility when he or she uses it. The poodle strategy is a strategy, which someone uses when he or she is scrutinized by the media. It?s primary purpose is to suppress further media coverage but it is also a strategy for defending oneself and hence rescuing one?s reputation either as a private person or as an official.The essay?s research questions are:How has the strategy been applied for defensive purposes and what are the results?To which extent can the Stasis theory and Benoit?s theory on Apologia be connected to the strategy?Does the strategy affect the user?s credibility?To answer these questions four cases from the political sphere in Sweden where persons have been said to have ?done a poodle? have been analyzed.
Perenndatabasen : för landskapsarkitektstudenter på Ultuna
This paper constitutes graduate work at the Depart-ment of Urban and Rural Development at the Swedish University of Agricultural Sciences. In this paper the urban structure of the million program suburb Husby in Stockholm is examined and what effect this structure has on social life in the area. The main objective of the study has been to, with the help of morphological analyses, examine how to create meeting places and make the Husby Park more accessiblefor the inhabitants in Husby. There has been a selection of analyses to ensure that Husby?s spatial relationship with surrounding suburbs as well as local spaces in the Husby Park is described.
Plockanalys i Härjedalens kommun : En utvärdering av plockanalyser på hushållens säck-och kärlavfall under åren 2007-2011
As a result of an increased consumption, waste volumes has grown steadily throughout the 1900s, and this puts great demands on an efficient and ecological sustainable waste management on both local and national level. In order to evaluate collection and disposal of household waste, a large number of Sweden´s municipalities are using waste analyses. The overall aim of this study has been to summarize and assess results from waste analyses executed in Härjedalen´s municipality during the years 2007-2011.The evaluation has given information about the household waste´s composition, quantity and change in time. The report´s objective has been to create a basis which the municipality can use in planning of future information efforts and other measures, and give some proposals on how these can be designed and targeted. Therefore, the report also highlights research on motivations factors that affects environmentally conscious behavior such as recycling, and how different instruments like information can be used to promote this.
Analys av vävnadsprover med endimensionell elektrofores
The following project has been made in collaboration with, Denator AB, a biotechnology enterprise. One-dimensional electrophoreses have been used to analyze protein contents of tissue samples. Tissue samples have been either treated according to the company´s newly developed tissue treatment technique or not treated at all and comparisons between these samples have been made. In order to see differences in protein patterns between samples more clearly, a conversion method has been developed where electrophoresis gel visual patterns are used to produce curves, similar to densitometer curves.Denator AB would like to know if the proteins in their treated samples will change visibly over 48 h when incubated at room temperature. This has been investigated using the above mentioned method.
Genus och vetenskaplig kommunikation: en bibliometrisk studie av amerikansk biblioteksforskning
The purpose of this paper is to examine how the relationship between the socially constructed genders is manifested in American library science. To visualize gender, bibliometric analyses of peer reviewed articles published in three core journals of library science between 1980 and 2000 inclusive, are performed. The three journals are: College and Research Libraries, Journal of Academic Librarianship and Library Quarterly. Questions: 1. Does gender affect the publishing process regarding the distribution of female and male authors? 2.
Komfortsanalys med hänsyn till vibrationer orsakade av människoaktiviteter. : Ett modernt dimensioneringsproblem för huskonstruktörer
Comfort analyses regarding human induced vibrationsIt is not too common among civil engineers in Sweden to perform comfort analyses considering the vibrations caused by human activities. In addition, the Swedish standards lack requirements to be used for comfort analyses in design of floor-systems. The demand for large spans in combination with slender slabs, is today a reason to investigate the floor-system constructions, in order to prevent disturbing vibrations and oscillations.The purpose of this thesis is to create a guide for how a comfort analysis, considering vibrations, should be implemented. Göran Svedenbjörk who is an expert in structural dynamics has been interviewed where he presents his latest project Värtaterminalen and answers some questions about vibrations due to human activities.Floor-systems, consisting of concrete slabs supported by steel or concrete beams, have been investigated with simulations in the finite element program Abaqus. In the simulations, the influence of various factors on the natural frequency of floor-systems and the acceleration level caused by dynamic loads, is studied.