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124 Uppsatser om Selective predation pigmentation - Sida 4 av 9
Riskbedömning och val av betesmark för boskap i torra till halvtorra områden i Kenya
The Rift Valley i Kenya utgör ett hem för de pastorala massajerna. De baserar primärt sitt leverne på kött, mjölk samt blod, därför är vikten av boskap av stor betydelse. För att upprätthålla en god och uthållig produktion bör flertal parametarar beaktas. I detta arbete undersöks vilka risker som massajernas djurbesättning utsätts för under betesgång samt vilka val herdarna gör för att minimera förekomsten av dessa riskfaktorer. De risker som primärt berörs är infektionssjukdomen trypanosomiasis (en sjukdom som sprids av tsetseflugor), olika fästingburna sjukdomar samt andra infektioner.
Natur som kultur : och betydelsen av dess berättelser
Is there such a thing as unadulterated nature? All that surrounds us is culturally modified by man somewhere along our past. But culture is only a fictitious conception itself, created in an attempt to break the world into controllable objects.So in what do we find culture? In everything? In the objects or the stories they embrace? Who chooses what?s worth saving and how to save? Choosing what is culture is made from personal, ingrained dichotomies of what?s important and what is not. A selective eye creates a distorted truth, which could have unintentional long-term effects.This thesis will give a historical account of the archaeological discipline?s development in tending to our cultural heritage.
Genetic parameters affecting leg length, leg weakness, hip- and elbow conformation in domesticated dogs, in comparison with pigs
Genetic parameters for four leg conformation traits in dogs (Canis lupus familiaris) are in this literature review summarized to investigate whether selective breeding could be useful to improve purebred dogs´ health and welfare. The four traits are leg length, leg weakness, hip joint and elbow joint conformation. When summarized, the genetic parameters are compared with genetic parameters affecting in pigs (Sus scrofa). Of the four traits, hip and elbow conformations were mostly studied in dogs. However, these traits were not widely studied in pigs.
Identitetsskapande på Instagram : En observationsstudie om visuell självpresentation från ett genusperspektiv
The use of social media has increased in recent years and has become a part of everyday life. Through the use of social media grows new opportunities for constructing ones identity, this enables individuals to selective self-presentation. The social media trend has gone from largely consisting of a linguistic communication to become directed towards a more visual form of communication, this encourages individuals to be more visual in their self-presentation. This study aims to create an understanding of how individuals present their identity through visual self-presentation, more precisely via Instagram. Previous research has shown differences between men's and women's use of social media.
Ainu-urbefolkning eller endast kultur?
The aim of this thesis has been to analyze and interpret several different discourses in Japan and from the findings see how the Ainu people and their existence in Japan have been defined in today's Japan and in who's interest it is to keep it this way. My findings was that the Japanese nation in all channels of society are reinforcing and perpetuating the belief that it constitutes an ethnically homogenous nation and that there exists no ethnic problems in the country. I found that schoolbooks don?t give adequate information about the Ainu people and its history, and the Japanese press is reinforcing the status quo by their selective silence and limited coverage on issues concerning the Ainu. The government has defined and legitimized the problem of Ainu within the framework of culture and tradition.
Androstenons fysiologiska roll hos grisar
It is mainly high levels of androstenone and skatole in adipose tissue that is the reason behind boar-taint, which is an unpleasant odor and taste from the meat of adult male boars. The purpose of this literature study is to provide an overview of current knowledge about the physioloical functioning of androstenone. There are several studies showing androstenone´s function as a pheromone, and that it is an important part of communication and mating behavior between pigs. Androstenone is produced in the testes of the boar and transported via the bloodstream to the salivary glands where it is excreted with the saliva. Sows sense the pheromone, not via the vomeronasal organ as previously considered, but via the olfactory mucosa.
Nytt ljus över dagbesvär vid insomni: spelar psykologiska processer en underskattad roll?
This study examined the psychological processes of autonomic arousal and distress, erroneous beliefs about sleep, worry about sleep, selective attention and monitoring and safety behaviours related to sleep, on the subject of daytime impairments associated with insomnia. The psychological processes were evaluated against as follows: sleep measures, anxiety, depression, medical disease and the use of medications. The measure daytime impairments complied with the established research diagnostic criteria. A correlation analysis indicated that psychological process, anxiety, depression and one of the sleep measures are associated with daytime impairments. The results of a multiple regression analysis proved that only erroneous beliefs about sleep, worry about sleep and safety behaviours related to sleep are linked to daytime impairments associated with insomnia.
För ett socialt kapital av god kvalité : - Det förebyggande arbetet mot mobbning ur skolkuratorers och lärares perspektiv
The purpose of this study was to understand school counselors´ and teachers´ perspectives on the prevention of bullying in relation to social capital. The study was based on a qualitative process with semi-structured interviews from three teachers and three school counselors from three different schools. The main question was to find out teachers and school counselors perspectives of bullying in relation to social capital. The analysis was based on a theory that focuses on social capital, where trust and confidence as well as universal and selective interventions are important. Today, bullying is considered a serious and significant problem in school.
Kvinnan, mannen och drogerna i filmen: en kvalitativ diskursanalys
The purpose of this essay is to identify how the drug user is portrayed in motion pictures. My main questions are: How is the drug use described? How is the male and female drug user depicted? How may the movies contribute to the construction, reproduction and change of gender? The method I use in my research is a qualitative, selective discourse- analysis of a number of movies prominently portraying drug use. A gender perspective is also applied on this paper.The main result of the study is that I have found that the great majority of the analyzed films portray drug use as means for something else. Drug use is often portrayed in the beginning as heavenly but changes to be depicted as problematic.
Familjen & Döden : föräldrars förhållningssätt till sina kvarvarande barn
The aim of this study was to explore the role of death in the Swedish family. How do parents and families cope with the loss of a child/sibling? How do the remaining children in a family fare after loss of sibling? The study was caused out partially through a selective review of the literature on children loss in families and partially through interviews with families who had experienced death of a child. The results were analysed with help of Family system theory, Emotional theory and with an Esoteric perspective. The findings of the study were that although families do eventually cope with the situation the majority is struggling to adjust.
För att vara den bibliotekarie som krävs : En undersökning av bibliotekariers läsvanor
The aim of this thesis is to study the reading habits of Swedish librarians visualized by librarians from Götabiblioteken ? a collaboration of 14 public libraries in mid-Sweden ? focusing on the reading done on their spare time, even if work-related. We started with a survey sent out to 74 librarians in October 2013, answered by 56, and followed up by interviewing 7 of them in November.We tried to answer these questions:To what extent does the working librarians read on their spare time compared to before they started working?What literature do they read, now compared to before they started working?To what extent does their perception of what they should have read affect their private reading?In what way does a librarian in the beginning of their career differ in reading habits from the reading habits of a librarian with many years in the profession?The result of our study shows that most of the librarians read as much or more than before they started to work. They are more selective in their choice of literature and are affected by their work in it in different ways.
Värderingsprocesser för bedöming av siginfikanta aspekter i företagsledning för hållbar utveckling
The use of environmental management systems, and objectives-led corporate management have become a widespread phenomenon today. Identification and assessment of an organisation?s significant (environmental) aspects is crucial within this work. Identification and especially assessment of significant aspects is often considered as a problematic step in many organisations. There are no generally accepted methods how to undertake this crucial step.
Selektiv uppmärksamhet och reaktion på stress
Tidigare forskning har visat att selektiv uppmärksamhet (selective attention; SA) mot hotfulla stimuli kan predicera emotionella responser på stressfyllda händelser. Syftet med denna studie var att undersöka sambandet mellan sårbarhet för ångest i form av SA och fysiologiska samt självskattade stressreaktioner på en laboratoriestressor. Ett negativt samband mellan fysiologisk stressreaktion och SA samt ett positivt samband mellan självskattad stressreaktion och SA förväntades. Skillnaden i hudkonduktansreaktivitet (skin conductance reactivity; SCR) på subliminalt presenterade hotfulla och neutrala stimuli hos 41 försökspersoner utgjorde mått på SA i denna studie. Försökspersonerna utsattes senare för en laboratoriestressor samtidigt som hjärtfrekvensvariabilitet (heart rate variability; HRV) och hudkonduktansvariabilitet (skin conductance variability; SCV) registrerades.
"En riktig våldtäkt" : - en kunskapsöversikt om föreställningar om våldtäkt
This essay is a selective review of Nordic literature with the aim to explore contemporary conceptions of male-on-female rape, to increase the understanding of how these can construct ?a real rape?. To achieve this two questions were formulated: What circumstances can cause an incident not to be defined as rape? What circumstances can cause an incident to be defined as rape? Searches in international and Swedish databases led to initial selection of peer-review journal articles and dissertations that were reviewed against set criteria. These criteria were met by 8 studies, that were assigned codes, from which comprehensive categories were developed.
Refugia som metod för att minska utvecklingen av anthelmintikaresistens hos får
Anthelmintic resistance is a major problem in sheep husbandry all over the world. One way toslow down the development of anthelmintic resistance is to keep part of the parasitepopulation in refugia (unexposed to drugs) which will maintain the genes for susceptibilitywithin the population. Climate, type of parasite and drenching regimes effect the size of therefugia. Dilution of resistant with susceptible parasites, targeted treatment and targetedselective treatment are all management strategies that employ refugia. Dilution is possible butcomplicated.