Fotosensibilitet delas in i tre grupper där typ I (primär fotosensibilitet) och typ III (sekundär/hepatisk fotosensibilitet) till stor del beror av toxiner som växtätare får i sig oralt via födan. Typ II är en ärftlig form och diskuteras därför ej i denna uppsats.Sjukdomen ger dermatit (hudinflammation) på opigmenterad och tunnbehårad hud samt ett fotofobiskt beteende hos djuren. Den sekundära fotosensibiliteten skiljer sig genom att de drabbade djuren får leverskador vilket kan leda till dödsfall. Både kliniskt och subkliniskt drabbade djur får nedsatt produktivitet vilket leder till stora ekonomiska förluster.Fotosensibilitet är en vidt spridd åkomma då det finns många olika fototoxiska växter samt mykotoxiner runt om i hela världen. Det är dock svårt att uppskatta risker av olika beten då halterna av toxiner och förekomsten av svampväxt kan variera beroende på många variabler.

In today?s Europe nationalist movements grow stronger. The Scottish referendum is a result of the nationalistic party Scottish National Party?s aim of an independent Scotland. Using a descriptive idea analysis the essay aim to answer how the referendum arose, its main arguments and how national and state identity is affected in the arguments.

The background to this study is that the forest company, Holmen, has found large discrepancies between harvested volume and the measured volume at the industry. Factors like bark features, breakage, double tops, bends and stem damages was noted, and all stems were measured manually. Hypothesis testing with the method "random in pairs" were used to examine whether the harvester measured values significantly differed from the manually measured. The result of a properly calibrated harvester shows in average underestimation of the volume with Skogforsk Pine as a bark function. This means that the harvester isn´t the reason why the volume measured in the industry is lower, the fault is elsewhere. The study also indicates a need for a unique bark function for logepole pine..

The purpose of this essay was to analyze rhetorical features of Swedish drug advertising and see if drug advertising could be misleading or not. The study was primarily concentrated on how pills were described and that was the overall picture of pills created in commercials. The essay uses theories of narrative, semiotic, argumentation and theories concerning social communication in advertising. In this study fife TV-ads were analyzed: Alvedon, Ibumetin, Treo, Bamyl, and Ipren. The analysis showed that drug advertising has the potential to be misleading mostly because the overall picture of pills which creates in commercials is strong and kind heroes. .

The purpose of this master?s thesis is to examine how femininity, Silikon, Vecko Revyn, and Darling. The study is made from a critical discourse analytical approach and text, pictures, and layout are all analysed. Some of the main characteristics of the material are the division in the categories"we"and"them", double messages, and personal address to the reader. Femininity is strongly associated with body, sexuality, beauty, and looks.

Changes in the climate and the environment are largely consequences of human influences. Resources are given to teach adults about the environment. However, there are problems in focusing on adults because it is difficult to influence people when they already have created a lifestyle. We have instead chosen to focus on teaching children about changes in the climate and the consequences of this.Many of the toys available on the market today encourage children to consume. Luxury cars and dolls with hundreds of accessories are often made of materials that has have a negative effect on the environment.Another problem we often encountered during the year is the declining interest in technology and science.

This work is done to try to solve a scientific computer problem and its basis derived from the web, as there are a variety of ways to program to it. The most common languages used by developers, both private and corporate are PHP, .NET and Ruby. But why do companies or a private developer choose a specific programming language? Is it because it is better and has more features than the others, or because they are forced? This essay uses a questionnaire and through tests sees which is best and which one is the most popular/used. To illustrate the problem, a survey is conducted and sent to several companies and asked them to answer the questions regarding the issue.

This thesis shows the result from investigations of methods that use distance vectors when matching pictures. The distance vectors are available in a distance map made by the Euclidean Distance Transform. The investigated methods use the two characteristic features of the distance vector when matching pictures, length and direction. The length of the vector is used to calculate a value of how good a match is and the direction of the vector is used to predict a transformation to get a better match. The results shows that the number of calculation steps that are used during a search can be reduced compared to matching methods that only uses the distance during the matching..

A vulnerable group in society is people with ASD (autism spectrum disorders) or autism. This group seems to increase, mainly due to genetic factors but also environmental problems. Medical research has accelerated in the U.S. and Europe. The biggest problem for people with disabilities is the inability to communicate, both verbally and socially.

The purpose of this project was to further develop and complete a quadcopter that had been built in an earlier course at KTH, so that it could be used for demonstration and education at the school. The quadcopter was at the beginning of the project completed when it came to hardware, and there was some software functionality implemented but no system for automatic stabilization. The main goal of the project was to implement such a system, and to combine it with the previous functionality to make the quadcopter operable and able to fly. To create a functioning and stable ground multiple basic software features has been implemented, and on top of that additional software to improve the safety, stability and functionality. The most important part is the control system that is responsible for converting sensor and control signals to suitable motor values.

The first part of the thesis consists of a brief introduction to the general principles of target detection and the sensor-systems used. In the following part there is a theoretical description of the algorithms this thesis focuses on. The detection algorithms described in this paper are called Cell Average, Ordered Statistics, 2parameter and Gammadetector. Two different discriminators called Extended Fractal Features and Quadratic Gamma Discriminator are also described. The algorithms are tested on three different types of data, simulated SAR-pictures, authentic SAR-targets and IR-pictures.

This essay is a study of ethics and morality in textbooks in religious education. The mainquestions in this essay is how ethics and morality are represented in the textbooks, what thebooks say about ethics and morality and, in some cases, what they don´t say about it. Toanswer these questions I have studied three textbooks in religios education and my methodwas content analysis and features of discourse analysis. The theory that I have used in thisessay is Emmanuel Levinas theory about ethics and the-other and Zygmunt Baumans theoryabout ethics in the postmodern society.The conclusion is for example that ethics and morality often is separeted from the rest of thereligious education and that Levinas and Baumans theories are not something that thetextbooks are very much influenced of..

This thesis has been carried out in collaboration with LEDtec International AB. LEDtec focuses on innovative solutions in LED screens. Everything from large advertising signs to welcome signs in cities, to screens indicating speeds or warning of heavy traffic. The task was to was to help them develop a new version of the control board that is used in some of their products. The reason for this is that their old control board is obsolete and the components that are on it, is no longer manufactured or in need to be renewed.

The project was based on a request to improve an already existing program and hardware at the electrical engineering department at the royal institute of technology. For maximum ease of use, tests have been done on students to properly design the program for what it is meant to be used for. These tests have been transcribed and analysed, then brought back to the group in a discussion and then transcribed and analysed again, I call this process the ?four step process? (this process is presented and explained in chapter 6.4.). A part of this master thesis was also to analyse the four step process to enhance validity of this research.The project resulted in a new program with a new graphical view and features to help students and researchers to work with the technical tool for electromagnetic readings of planar objects.

Today there are commercially available databases with active features, i.e. active mechanisms are available for development of information systems. But the usage of active mechanisms is low in practice. This is due to the insufficient methodological support in analysis and design for developing ECA rule based software. It has been proposed that one of the most suitable ways to tackle this problem is not to develop new methods but to extend existing methodologies.In this thesis an extension of the Object Modeling Technique (OMT) is developed, called OMT-A, which is able to model active rules.