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2715 Uppsatser om Biological effects - Sida 52 av 181

Optimering av testning av säkerhetskritiska funktioner

Inom industrin används olika testmetoder för att uppnå hög kvalitet i mjukvarukontrollerade system. Kvalitetskraven är särskilt höga för säkerhetskritiska system t.ex. styr- och reglersystem i fordon. I det här examensarbetet används två analysmetoder (Fault Mode and Effects Analysis och Fault Tree Analysis) för att ta fram ett nytt säkerhetstest för ett broms- och växlingssystem som Scania tillverkar. Det studeras även hur formella metoder kan användas för att ytterligare öka kvalitet ochh tillförlitlighet.

Färgval hos blomkrabbspindeln (Misumena vatia) med och utan konkurrens

The colour choice of spiders and the effects of competition on this phenomenon were examined in the laboratory using the sit-and-wait predator goldenrod crab spider (Misumena vatia, (Thomisidae)). This species can  be both white and yellow (could also change colour)  and it was here examined whether individuals preferred to sit on flowers which has the same colouration as their bodies. I found that M.vatia showed preference for flowers that matched their own body colour, but when competition was introduced this preference disappear. It seems, however, that position is a factor that can influences the substrate decisions of M. vatia, where the edge of the flower is preferred..

En studie om de svenska riksdagspartiernas ställningstagande i EMU-frågan inför folkomröstningen år 2003

Based on widespread public debate prior to Swedish EMU-referendum 2003, the main purpose of this thesis is to examine and analyze the standpoint of the Swedish parliamentary parties in the EMU-issue, from perspektive of the following questions;1) What is the official standpoint of the parliamentary parties in the EMU-issue?2) What claimed effects of a Swedish EMU-membership or non-membership have the parties presented?3) What rifts can be found within the parties, in relation to their official standpoint in the EMU-issue?The Sweidish parliamentary parties´ standpoint in the EMU-issue will be analyze from the point of view of a number of current theories. These theories are basically democrazy theories that all have transnationalization and Europeanization as a common ground.The conclusions are, among others, that the parliamentary parties` standpoints in the EMU-issue are based on ideological values about whether or not a Swedish EMU-membership is good for Sweden. The Liberal Party, the Christian Democrats, the Moderate Party and the Social Party have a positive view on EMU and a deeper European integration, and basically value the economic efficency of the EMU higher than democratic decision making and a national currency and monetary policy. As for the EMU-critical parties such as the Centre Party, the Green Party and the Left Party, their view in the EMU-issue can be regarded as more nationalistic, since they say no to an exapanded financial cooperation.

Effect of botanically diverse pastures on the milk fatty acid profiles in New Zealand dairy cows

Botanically diverse pastures are commonly used in New Zealand to reduce the ruminant environmental impact by reducing the methane production from the rumen digestion. In order to evaluate the effects diverse pasture species have on the milk fatty acid profile seventy-two lactating Friesian-Jersey crossbred dairy cows were used in a randomised block design with two replicates of six treatments. Six different pasture mixtures were fed at a daily allowance of approximately 15 kg DM/cow/day. The mixtures were categorised as either a simple or a diverse pasture. The simple mixtures all contained white clover with the addition of either a standard diploid perennial ryegrass (RG), a diploid high sugar ryegrass (HS) or tall fescue (TF).

"Då rökte jag på. Sen började jag lite med tjack och sånt också." :en studie om hur ungdomars missbruk påverkar familjen

The purpose of our report was to analyze the effects of youth drug abuse on the families concerned. Youth drug abuse made us wonder about the effects on the family as a whole, of those involved with drug abuse. To answer this question, we decided to employ an empiric study in the form of interviews with four teenagers, five parents and four drug counselors. Because our intent was to understand rather than try to measure the problems involved, we decided on a qualitative method. Our method built upon semi-structured interviews using open questions, where the interviewees were free to express their own thoughts and opinions.

?-galaktosidas assay för studie av promotorregion i kloritdismutas från Ideonella dechloratans

Oxochlorates are anions with a partially naturally occurrence in nature but are also spread by human activities, including the paper industry. These compounds are harmful to both nature and humans, which makes it necessary to find a good way for their degradation. There are two different kinds of bacteria that can use oxochlorates as electron acceptors in their metabolism, bacteria that break down perchlorate and bacteria that break down both perchlorate and chlorate. A bacterium that can break down chlorate under anaerobic conditions is Ideonella dechloratans which holds the genes for chlorite dismutase and chlorate reductase which are enzymes for the degradation of chlorate. Gene expression and enzyme activity of chlorite dismutase are induced under anaerobic conditions, which makes it interesting to find out how this regulation functions in order to better exploit these bacteria in biological wastewater treatment.

Marknadsföring i podcast

Podcast is a new audio media in Sweden and has become larger and increasingly more popular in the past few years. In line with this, companies have seen the opportunity to use this type of marketing in the new coveted media and have created a new marketing tool in the form of sponsorship. Previous studies in this field indicate that this is a very effective method to reach a broad audience, but it still is a relatively new area with very little research in existence today. This study is an analysis of how receptive listeners are to marketing through podcasts and the ability companies have to create a sustainable and effective strategy for successful marketing through this type of medium. The collection of data for this study consists of two different qualitative interviews, the first one with listeners that were chosen, and the second with the sponsor company for two of the largest podcasts in Sweden. The essay´s empirical evidence shows how receptive listeners are to marketing via podcasts, what their podcast habits look like, what form of approach in marketing they prefer, and how often they take part in different offers. From the interviews with listeners and sponsoring companies in the study, it is concluded that the best and most effective strategy for marketing through podcasts is to weave advertising in the conversation and therefore increase the credibility and disturb the listener as little as possible.

Matte painting och camera projection inom VFX-produktion

Matte painting och camera projection är ett relativt snabbt och kostnadseffektivt sätt att skapa miljöer som inte existerar. I denna rapport redovisar jag om matte paintings användning inom VFX-produktion och går igenom hur man uppnår ett effektivt arbetsflöde med godtagbara slutprodukter. Jag redovisar skillnaden mellan 2D, 2.5D och 3D-genererade miljöer och vad som bör användas vid olika situationer. Jag rapporterar även om områdets generella utveckling samt i vilken riktning dess utveckling ser ut att gå..

Kommunikation i multiagentsystem

Communication is an important part of any multi-agent system. There are different ways of communicating and they have different effects on a multi-agent system. This project describes and evaluates two different ways of communication, implicit and explicit. To compare the two methods, two experiments have been executed. The result of the experiments have been compared and discussed.

Barns och ungas livsfrågor och ämnet livskunskap : Existentiella tema på BRIS diskussionsforum

Normal children acquire the necessary social habits without being consciously aware of this, they learn instinctively. (Author?s translation from Swedish to English) (Asperger & Frith, 1998, s. 21) This essay is about people who do not learn to socialize, the social habits, instinctively but through conscious learning. We have interviewed three adults with the diagnosis of Asperger syndrome with the aim to let them tell us about what it means to have a neuropsychiatric disability.

Styrketillväxt med hjälp av vibrationsplatta

Abstract 1.The purpose of this study was to investigate the effects whole body vibrations on maximal strength, power output and neuromuscular activity in m. pectoralis major during bench press.Participants consisted of 35 male and 9 female military high school students (m=23, 1 years). On the basis of initial maximal performances in bench press the participants was divided into two experiments groups and one control group. Intervention groups performed a specifically designed push up program on a vibrating plate respectively a step board during 12 weeks Initial load at 60 % of 1 RM showed an average of 46, 5 kg. All groups showed an average increase of 13 kg for each person after 12 weeks.

Inventory and evaluation of Nairobi Animal Orphanage : focusing on routines and feeding, black-backed jackal, lion and patas monkey

This BSc thesis is an introductory step to the collaboration between the Swedish zoo Skansen and Kenya Wildlife Service (KWS). It constitutes of an inventory of the Nairobi Animal Orphanage (AO), a facility that cares for injured and abandoned wildlife species in Kenya. Through the cooperation with Skansen, the KWS will improve their management of the AO. The aim of the inventory and BSc theses is to evaluate the management of black-backed jackal (Canis mesomelas), lion (Panthera leo) and patas monkey (Erythrocebus patas) regarding their biological needs. The general enclosures, routines and feeding at the AO are also evaluated since they have a great influence on the management of captive animals.

Femtio Nyanser av Co-branding - En kvantitativ studie om effekterna av co-branding på konsumenters varumärkes- och produktutvärdering beroende av kvalitetssegment och hedoniska shoppingmotivationer

The retailing industry has an extremely high density of brands. In order to differentiate its offer, both retailers and suppliers, are constantly forced to come up with new ways to launch their products. A collaborative strategy between two brands is called co-branding, which means that both the private label and the supplier's brand are displayed on the new product packaging. Several studies have shown that a co-branding strategy is successful, but many operators are still reluctant to use co-branding in fear of long-term losses due to potentially damaged business relations. The objective of this study is to explain how the product- and brand related value for customers, retailers and suppliers is affected by co-branding between private labels and national brands.

The parenthood of adoptive mothers ? a qualitative study about self experiences and motives of single adoptions

The primary purpose of this essay is to study and describe what single adoptive mothers believe to be significant motives when considering adoption. This essay also describes how single adoptive mothers experience parenthood in relation to their expectations. The theoretical perspectives applied to analyse the empirical data are existentialism, the identity making process, and social constructionism. The method of this study is qualitative based on seven interviews. The material has been analysed by condensed meaning units and themes with a phenomenological approach.

LCA av dricksvattendesinfektion : en jämförelse av klor och UV-ljus

Disinfection methods for drinking-water produced at the two water works of Stockholm Water Co are compared in this study. Three different nethods are compared; disinfection with chlorine gas, disinfection with sodium hypochlorite and disinfection with UV-light and monochloramine. The method used is Life cycle assessment, LCA. LCA is defined as the compilation and evaluation of the inputs, outputs and potential environmental impact of a product system shroughout its life cycle. The environmental burden is compared for the three different disinfection methods.

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