The aim of this study was to find out if hypertext structure has any relevance for the efficiency of information retrieval. An experiment, in which three variants of hypertext structure were compared, was carried out in the autumn of 1998. Three websites with different structures were constructed for this purpose: a sequential version, a hierarchical version and a webcluster version. 44 subjects, all students at the University of Lund, were randomly divided into three groups. Subjects were requiered to answer a number of questions using one of the three versions.

Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.

The present study aims to examine how teachers write polemical articles. This genre often occurs in national standardized tests in Swedish schools. The study seeks to analyze argumentative structures in the articles. It also categorizes assessment notes written by the teachers in response to each others? articles, by interpreting response texts.    The examination shows that there is uncertainty among the teachers about how to create structures in argumentative text types.

The purpose of this essay is to examine the development of the use of private securitycontractors in Iraq. The reason is that there has been a considerable increase of the number ofprivate security firms operating in Iraq during the last couple of years. The legislation in thefield of private military and security is indistinct and my hypothesis is that the lack of nationaland/or international legislation can be connected to the increased globalization. To come toany conclusions about this I have chosen to make a comparative study between the two casesthe Gulf War and the War in Iraq which started in 2003. In this comparison, I ask thefollowing questions: 1) Are there any signs of anarchy in the field of private security duringthe Gulf War respectively the last War in Iraq? 2) In what way has the use of private securitycontractors changed from Case 1 to Case 2 ?According to my research, there were signs of anarchy in the field of private security bothduring the Gulf War and during the latest war in Iraq.

The aim of this project was to develop educational resources concerning bioenergy and sustainability. The initial purpose was to produce two sets of material: one suitable for children in their first years of Swedish compulsory school, and one designed for upper secondary students. In the report, however, the possibilities are discussed for this material to be used with even wider audiences.In the first phase of the process, literature (books, reports etc.) with relevance to bioenergy, sustainability and theories of learning were studied. This insight, along with the appropriate course curriculums, was used in the development stage to produce learning material for the targeted audiences. The development was followed by tests and evaluations carried out with high school students, upon which an analytical discussion is held regarding the consequences and possibilities that the results of this project pose.The content of the learning material is based on the curriculum and course requirements provided by Skolverket (The Swedish National Agency for Education) for lower elementary and high school students.

The object of this study has been to establish whether there is a correlation between a teachers efforts in presenting, working with and creating a connection to ?real life? when working with fictional texts. A further hypothesis is that presentation, realization and the follow up activities has a correspondence to how well the goals for the lesson are achieved. In order to achieve the presented objects the methods of observation and interview are chosen. Firstly classroom observations are made and subsequently interviews with teachers that struggle with these questions on a regular basis are conducted.

This paper provides a study about human trafficking with sexual motives performed in European states and the measures taken from national, international and Non-Governmental organizations with the purpose to oppose human trafficking. According to the UN human trafficking has increased and shows tendencies to continue escalating, regardless of the measures taken by various organisations. In this study, four countries with associations to human trafficking have been chosen and organisations related to these countries are studied. The purpose is to inquire into how these organisations work against human trafficking and which objectives and guidelines these organisations strive for together with their values. The aim is to find out which result the organizations efforts gets and if, according to my hypothesis, the efforts oppose themselves.

Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.

The saw blade producer, Håkansson Sågblad AB, patented in the U.S. a new blade profiledesigned specially to cut fish and meat. The most important advantage of that blade is that its teethare not set, therefore the material lost when cutting is really smaller. The special geometry of thatprofile made that nobody had found a proper way to produce it before.The goal of the outlined work is to develop a machine to produce these new blades in afeasible way.The research approach of the project can roughly be divided into three phases:1.- Invention and development of a proper distribution of blades to produce a big amount ofthem at the same time.2.- Research of the best production process to produce the blades.3.- Main design of the machine to produce the blades.In the Thesis these three points are carefully developed and studied in the form of the startpoint of a really bigger project. Some tests had been done in order to prove all the analytical ideasand the results obtained had been satisfactory enough to give Håkansson the start point of a bigbusiness.

This master thesis concerns whether Swedish non-financial listed firms act in accordance with the optimal capital structure theory and/or pecking order theory. The examined period is 1998-2004 and we discover that Swedish companies neither follow optimal capital structure theory nor pecking order theory. From our results we conclude that there exists no single point of the capital structure which is optimal. Rather it seems as if the optimal point lies in-between an interval from 0 to the industry average, where firms tend to be indifferent to their debt-ratios. Our results show that Swedish companies prefer internal financing followed by equity and as last choice debt issuance..

Development and accuracy tests of advanced exchange trading systems require well adjusted tools for testing. Aptness of these tools are probable to have a major impact on identification of bugs and verification of new functionality. Identifying erroneous parts and bottlenecks of the trading system is of outmost importance for the exchange as a whole since stability and correctness are two of the determinant factors its viability is measured by. This paper covers how this test-tool was created and the motivation behind the design choices made. The tool was created with the goal to be broad enough to cover the majority of cases that could arise, fast enough to be able to test the trading systems speed limitations (i.e.

In the current situation is the straight tube cutter, that provides Luvata?s line of large recoolers with copper tubes, manually operated. To prevent damages and facilitate mounting the tubes must be properly arranged when they leave the machine. This report aims to investigate and present an automated solution where the operator does not need to participate in the process. A number of theories have been drawn up and tests have been done.

The objective of this essay has been to show how the image of the Soviet Union in ?Alla tiders historia? differs in the 1989 and 2004 editions of the book. To explain these differences I have used a discourse analytic perspective, mainly inspired by Michel Foucault and his philosophical theories of the constructions of objects, and also Faircloughs critical discourse analysis inspired by Gramsci.In this paper the two editions of ?Alla tiders historia? are presented with quotes which are then analysed from using my theoretical framework. In the 1989 edition three themes emerged: continuity, undecidability and ambivalence, which together present an image of a Soviet Union which is not clearly defined within the political discourse.In the 2004 edition this struggle over the discourse has been settled and the Soviet Union?s position as a dictatorship has been determined, at the same time as the Soviet Union is put in a negative relationship with Czar Russia and is connected with Nazi Germany.

Sport horses are widely used for performance in jumping, dressage, endurance etc. To enable comparisons of horses, training facilities, programs or physical status, an exercise test can be used. Exercise tests are also important to increase knowledge about exercise physiology of the horse considering different ways of training to compare training methods or individual qualities, development of an individual or other investigations of equine exercise physiology. Since several investigations are done on standard- and thoroughbred horses but less on sport horses, it is of great importance to get an overview of the investigations done. Most common is to investigate heart rate and lactate concentration.

When developing software that is meant to be distributed over several different computers and several different networks while still working together against a common goal there is a challenge in testing how updates within a single component will affect the system as a whole. Even if the performance of that specific component increases that is no guarantee for the increased performance of the entire system. Traditional methods of testing software becomes both hard and tedious when several different machines has to be involved for a single test and all of those machines has to be synchronized as well.This thesis has resulted in an exemplary application suite for testing distributed software. The thesis describes the method used for implementation as well as a description of the actual application suite that was developed. During the development several important factors and improvements for such a system was identified, which are described at the end of the thesis even though some of them never made it into the actual implementation.