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2461 Uppsatser om Lock-in effect - Sida 15 av 165

Effect of Bacillus mediated priming on different natural genetic variants of Arabidopsis thaliana

In two feeding experiments Bacillus induced priming of plant defense was tested for its effect against the generalist insect pest Spodoptera littoralis. The main hypothesis for the study was that Bacillus induced priming would enable the plant Arabidopsis thaliana to defend itself better against this insect herbivore since this priming seems to involve jasmonic acid, known to be important for plant defense to insects. A secondary objective of the study was to examine if any differences in a primed defense capability could be seen between different natural genetic variants (ecotypes) of A. thaliana reflecting habitat differences in pest pressure. The methods used for plant cultivation and Bacillus inoculation were aimed at reflecting conditions that can be expected in an agricultural cropping system. This meant that all plants were cultivated in soil, and the feeding experiments were conducted with the plants growing intact in the soil system.

Är det en enkel konst att återvinna för rullstolsburna i Örebro kommun? : En deskriptiv observationsstudie

Bakgrund Dagens samhälle ställer allt större krav på den enskilde individen att bidra till ett hållbart samhälle, där återvinning av förbrukade material är en del. Samtidigt talas om tillgänglighet för alla individer i samhället och lika rättigheter.Syfte Studien syftar till att undersöka hur förutsättningarna i miljön ser ut vid återvinnings-/miljöstationer för rullstolsburna i Örebro Kommun.Undersökningsmetod En observationsstudie av miljöfaktorer har gjorts utifrån egen utarbetad checklista med grund i bland annat bedömningsinstrumentet Housing Enabler samt rekommenderade mått från svensk lagstiftning angående byggnormer för tillgänglighet. Urvalet skedde genom bekvämlighetsurval.Resultat Observationerna av återvinnings-/miljöstationerna indelades i åtta kategorier, utifrån typ av station. De hinder som observerades var för höga/låga kärl, otillräckligt manöverutrymme, hindrande trösklar/trottoarkanter, tunga dörrar utan automatik och tunga lock/luckor på återvinningskärlen.Slutsats Samtliga observerade återvinnings-/miljöstationer innefattade miljöhinder för rullstolsburna vilket påverkar möjligheten till självständig återvinning. .

Imageination: En uppsats om imageöverföring inom sponsring och Event Marketing

There are two main reasons for why companies engage in sponsoring and Event Marketing; affecting the brand awareness and/or the image of the brand. Historically the main focus within the research field has been on how sponsoring and Event Marketing can create and achieve high brand awareness. More research regarding the image transfer from event to brand has been requested and this study is to be considered as an attempt to begin filling this gap. Today we see more and more brands choosing to arrange their own events; hoping to attain a more direct connection between the event and the brand. This trend raises questions such as - Do brands arranging their own events receive more image transfer from event to brand compared to brands sponsoring the same kind of event? - Are there any differences between an established well-known brand and a new unknown brand? - Will an event fully owned by a brand attract more or less people than an event arranged by someone considered to be less biased? These are some of the questions asked and answered within this thesis.

Automatisk lockmekanism : från idé till prototyp

Wavecraft AB develops medical equipment for heating of organic synthesises. The heating is done with microwaves, which improves the process in both speed and accuracy compared to the more traditional methods where heating elements are used. This report discusses the developement of an automatic lid mechanism for one of Wavecraft's product prototypes. The company assumes that the final product will be integrated by customers into fully automated systems, and the upgrade from a manually to an automatically controlled lid is therefore an important step in the product's developement process.The first stage och the project was an idea generation process. The ideas generated here were organized into five different concepts of which the best one was selected through the use of a concept matrix.

Stress, self-efficacy och livstillfredsställelse : Finns det köns och åldersskillnader

ABSTRACTThe aim of this quantitative study was to investigate if stress, self-efficacy and life satisfaction varied with gender and age. The sample was selectively chosen in the municipality, country council, private sector and in the trade business. 237 participants were included in the study, of which 94 were men and 143 were women. Age was split in two categories: younger adults (18-40 years) and older adults (41-65 years). The results showed that there were correlations between the dependent variables: stress, self-efficacy and life satisfaction.

Kalkningens påverkan på fosforlöslighet : skakförsök baserade på två svenska långliggande kalk- och fosforgödslingsförsök

Eutrophication is an environmental problem that affects more than ten percent of Swedish lakes. Excess nutrients increase the growth of algae, and cause major problems in the ecosystem through oxygen-free bottoms, fish kills, and at worst dead bottoms. Agriculture accounts for 44% of human emissions of phosphorus to lakes and rivers. Leaching occurs of particle bound phosphorus and of dissolved phosphate. The amount of phosphate in the soil solution that may be leached is partly due to the prevailing pH in the soil solution. The purpose of this study was to investigate how the relationship between phosphate solubility and pH was affected by liming.

Effekten av Valutarisk på Bilateral Handel

 This paper evaluates the effect of exchange rate risk on the sum of bilateral trade. To distinguish the effect between different types of countries, two groups are defined: advanced and developing economies. Economic theory on exchange rate risk and trade proposes ambiguous effects of increased volatility. However, the ex ante hypothesis is that developing economies are more sensitive to volatility. Contrarily to the hypothesis, the empirical results suggest that advanced economies would benefit up to twice as much from a removal of exchange rate risk.

Lika makter leka lika? Sanktioner eller dialog, varför skiljer sig USA respektive EU handlingsplaner från varandra angående Irans kärnvapen?

In this thesis I will discuss how US respectively EU general international security policies are formed with the scientific theories Rational Choice and Cognitive theory in mind. I?ll discuss how come US tends to go towards a more sanction orientated strategy while European Union seems to prefer a dialog and diplomatic problem solving strategy. I?ll exemplify respective security strategy through the qualitative cases study of Iran and analyse why they have taken different cores of action while trying to solve the problem with Iran's alleged nuclear weapon.

Har energidryck någon kognitiv effekt i kombination med alkohol? : Med fokus på komponeneten koffein

Background: Energy drinks have been found in everyday-stores since 1997 and their popularity have increased over time. Consumtion of energy drinks takes place because of their ability to increase concentration and to decrease fatigue but also because of the popularity the drinks have got. Target groups for these stimulating beverages are adolescents and young adults. Energy drinks contain caffeine, taurine, glucuronolacton, carbohydrates and B-vitamins and voices have been raised about the eligibility for young people to ingest large quantities of these kinds of substances. Because of the properties of these substances it has become popular to mix energy drinks and alcoholic beverages to make up for the negative effects of alcohol and to be able to drink larger quantaties.Aim: The aim of this literature work was to investigate cognitive effects of the combination of caffeine in terms of energy drinks and alcohol and to determine if these effects could be harmful.Method: This literature work is based on five scientific articles retrieved from PubMed.

Lugnet före stormen : En studie om hur Räddningstjänsten Medelpad arbetar med kommunikation och planering innan en kris

The United States use of Unmanned Combat Aerial Vehicles (UCAV) or drones for targeted killings of terrorists has been on the rise in recent years and the method has become the core element of president Obamas strategy in the war against terror. This study examines the deterrent effect of targeted killings on terrorism using UCAV/drones as a method of counterterrorism. Building on the literature on counterterrorism, UCAV, targeted killings, deterrence theory and statistics on terrorism the study provides a case study of the CIA drone operations in Pakistan between the years 2004-2010. The goal has been to analyze drone operations and the extent of terrorism from the beginning of the drone campaign until 2010. This as a means of identifying possible trends in terrorism activity due to the occurrence of drone strikes.

Restaurerade ängs- och betesmarker : restaureringseffekten på växter och insekter

Semi-natural grasslands have a high biodiversity and host ecologically and economically valuable ecosystems and species. Restoration on these types of land is often done by removing trees and scrubs, mowing, grazing, changing the soil by removing nutrition or changing the structure of the ground. Another way of restoration is planting seeds of common grassland plants. By comparing 18 scientific publications I investigated if the restoration was affecting the plants in a positive way and if the effect was similar for insects. By comparing the publications, time seemed to have an important effect on insects. They needed time to recolonize restored areas.

Kvinnlig representation och dess substantiella effekter En studie om svenska kommuners flyktingmottagande utifrån ett könsperspektiv

Municipalities with a higher amount of female representatives has been shown to be more gender equal. Earlier reasearch has also shown that female politicians are more likely than male politicans to represent immigrants and refugees interests. However, the effect of female representation has not been tested on other subordinated groups than women. Swedish municipalities have full autonomy regarding refugee reception and local politicians are responsible for the decision on the amount of refugees that the municipality accept. The variations of female and male politicians in the local assemblies are expected to have different outcomes on the refugee reception, according to females social backgrounds and experiences.

Läsa med självförtroende : En fallstudie om hur lärare arbetar för att motverka Matteuseffekten

The aim of the study is to investigate how a teacher and a special education teacher cooperate to prevent a pupil with reading difficulties from ending up in the vicious circle of the Matthew effect, and to find out how a pupil with reading difficulties experiences his or her reading situation. This case study is based on a phenomenological perspective whereby qualitative interviews illuminate a commonly occurring problem in today?s schools. Interviews were conducted with a teacher, a special education teacher, and a pupil in grade 1, in order to cover everyone?s perspective in this situation.

Effekten av neutrala påståenden på social önskvärdhet i självskattningsformulär

This study investigated the effect different contexts have on personality items when they are framed more neutrally. The study was based on a five-factor personality inventory originating from International Personality Item Pool. The inventory consisted of 50 original and 50 neutral personality items and in addition 28 items measuring social desirability. The sample consisted of 150 students from the Department of Psychology, Lund. The students were divided into three instruction groups differing in context.

Balans i arbetet, balans i livet : En kvantitativ studie om arbetslivets inverkan på privatlivet

This study focuses on work related factors which have an effect on the balance between peoples work and private/social life. Commonly discussed in the daily debate is the so called ?livspusslet?, the time puzzle. The question is: How do you balance the demands from work, family and society? A lot of peoples health and family relations suffers from a stressful situation at work.It?s not hard to figure out that the possible factors which could have an effect on the balance between peoples work and private/social life are many.

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