Herbicide resistance is the result of an evolutionary process where a population gradually changes from being susceptible to being resistant to an herbicide. The resistance mechanism is usually a change in the biochemistry of the weed, but in some cases changes in morphology or growth rhythm. The change is caused by random mutations. Two resistance mechanisms are found in black-grass; target site resistance and metabolic resistance.Black-grass is a tufty, winter annual grass weed, which is mainly found in milder climates. Black-grass is a big problem in Southern Europe.

Deontic Action Logic Multi Agent System (DALMAS) är en typ avmultiagentsystem där agenternas handlingar regleras av ett normativt system. Teorinför DALMAS bygger på deontisk logik, och normer i det normativa systemetuttrycks i termer av Kanger-Lindahls teori om normativa positioner. Syftet meddetta arbete är att försöka reda ut vilka eventuella fördelar ett normativt system kange samt hur man ska kunna skapa effektivt sådant. Går det att skapa ett normsystemsom kan lösa samma problem som ett konventionellt MAS löser? För att kunnajämföra de olika normsystemen har kriterier för hög effektivitet tagits fram.Testresultaten visar bl.a.

The aim of this study has been to highlight how school social workers experience their discretion, and furthermore how they feel about working in a context mainly dedicated to teachers. The study is executed with a qualitative research method where ten interviews with school social workers, in eight schools in the area of Stockholm have been conducted. The theoretical framework used to analyze the results was discretion, street-level bureaucracy and human service organizations.The main findings of this study imply that the most important ambition of the social work that was conducted in the schools was to help the students reach their knowledge goals. The assignment is, however, not clearly defined, which has lead to school social workers defining the mission and goals themselves. They all have wide discretion and great possibilities to decide how to execute their work, but how they use the freedom that was given seems to vary among them.

The quality of bread wheat is a large subject to study. The quality rests on two legs. The first one is the inheritance of specific characters, which can be influenced through plant breeding and type of cultivar. The other one is the environmental influences, such as crop rotation, nutrition, harvest and storage. The latter factors are possibly to affect through cultivation practices, while other factors are not possible to influence on for the grower, such as seasonal changes of weather and the soil content.

This is a study based on discourse theory in purpose to examine the border-politics ofthe EU. Since the EU step by step has developed into an area of free movement on capital, people and services, the external frontiers have been given prioritiy on the political scene. Development in recent years have put questions of foreign- and security politics on a supranational level, meaning that the EU-member states in a wider range now cooperate in these political areas.To handle the increasing ammount of (illegal) migration to the EU an independet agency, Frontex,was established 2005 in favour of coordinating the Member States in issues regarding bordersecurity. The focal point of this study is to critically examine the identity of Frontex by using Becks theory of risk combined with the theory of governmentality. By doing so I seek to highlight the relation between Frontex and the EU and also that of Frontex mission in relation to illegal immigration.

The European Union has faced lots of criticisms over the last couple of years when it comes to how refugees are treated in Europe. The Lisbon Treaty states in Article 2 that the European Union is founded on respect for human freedom, dignity and equality. Values such as democracy, rule of law, respect for human rights and that the rights of persons belonging to minorities should be respected are also something that the Union should be based on. How is it then that the Roma people, which are Europe's largest minority, are being persecuted all over Europe, that they get deported and have their camps destroyed? Why are refugees from North Africa being sent back before they even have a chance to seek asylum?  In this essay I have examined how the EU are treating refugees and tried to distinguish if there are any differences in how they treat internal and external refugees.

Many people perceive a division between an online world and the ?real? world outside of the World Wide Web. However, this view often leads to a reduced sense of importance ascribed to what takes place online, even though it affects life in very real ways. In our study we aim to explain the importance of how meaning is built in to sociomaterial compositions. By analyzing comment fields hosted by a Swedish IT-journal we illustrate how what is being said interplays with the technological platform in various ways.

We have done a qualitative and quantitative study about math problems on second­ary school students. The study is based on the diagnosis, treatment and training of teachers, about students who have math difficulties. The aim of this work is to obtain teachers ?perceptions about students? diagnosis, treatment / improvement and continuing education for students who have math difficulties. By having interviewed various teachers through surveys we have received answers to their concerns about the diagnosis, treatment and the importance of continuous training of teachers on students? mathematics difficulties.

With the farming methods of the past century the agricultural landscape has changed. This has led to the fact that many habitats and species have been significantly reduced. Sweden is committed to the preservation of biodiversity through various conventions and laws. In the EU's Common Agricultural Policy there are currently agro-environmental schemes, which were created as an instrument for reducing the negative impacts of agriculture on nature and environment. Within this system any farmer who perform environmental measures are financially compensated for this.

Political marketing has changed the way political parties internationally behave in relation to the voters. The purpose of this study was to investigate how political marketing is conducted on a local level in Swedish political parties, and how the local and national level of the political parties coordinate the message they send out to the voters. An explorative study was performed by interviewing experts in the field in the form of politicians on both a local and a national level. Initially the local parties' methods were investigated, followed by a second stage where we researched the link between parties on the local and the national level. Marketing of parties on a local level turned out to a large extent to follow traditional methods.

This thesis examines the underlying components that affect consumer behavior regarding organic food. The thesis theoretical framework is based on Ajzen and Fishbein?s The Theory of Reasoned Action combined with theories regarding involvement and routine purchases. The empirical material is based on a desk research with 19 research papers between the years 1994 till 2009 and sales statistics over organic food.  The thesis conclusion shows that the underlying components when looking at attitude towards conventional food are price, taste, expiration-date and healthfulness. While the components for involvement in organic food is the environment, personal health and supply.

Purpose: Which type of social critique does hiphop music present and is it possible to categorize the critique?Is it possible to categorize the social critique ideologically on the basis of socialism, liberalism and conservatism?Procedure and method: A qualitative text method has been used to see which arguments the songs portray. Two different analyzes has been used. The first one was a theory based on Thomas Denk and Daniel Silanders book: Att studera demokratisering and Arvidssons book: Musik och politik hör ihop and its purpose were to categorise the critique. The second one was based on a book by Reidar Larssons: Politiska ideologier i vår tid.

Prostitution is a large and multifaceted subject. In this study, the purpose is to gain an insight into how the police officers work and act when they get in contact with young prostitutes. The study contains answers and opinions from five police officers which were conducted through semi-structured interviews in this qualitative study. The results were analysed based on a social constructive perspective and Goffman?s stigma theory.

This paper deals with institutional and structural factors' influence on democratic transition in limited multiparty regimes in Sub-Saharan Africa. Comparing the cases Kenya and Tanzania, of which the former has made a transition to democracy and the latter has not, this paper reaches the conclusion that political traditions, the coalescing of the opposition, and the elites ability to learn from the electoral process is essential for a transition to democracy. In the specific cases, the harshness of the Moi regime and the Tanzanian vision of national unity may possibly carry some explanatory power, alongside the pressure from international actors.These results have been reached through the application of a comparative case study, where democratic transition constitutes the dependent variable. It should be noted that a harsh definition of the term transition has been applied, according to which the incumbents actual loss of an election is a necessary indicator for transition. However, the Freedom House and Polity scores have been brought up as complement of this definition.

In this thesis we present the procedures and outcomes of adopting two roles in a study: the role of a researcher and the role of a designer. The subject is crossmedia design. Crossmedia is a growing and changing trend for media producers of today its design is of great importance. The purpose is to create a concept from scratch that stands out from the crowd and engage people with the use of cross media as the approach. We also aim to investigate if a cross media designer can rely on previous research made within this subject or if the scene has changed.In order to test and to fully understand the process of the subject, we designed a crossmedia concept, based upon previous and related research.