Gravitational lenses are unlike ordinary optical lenses, a phenomenon corrupting our optical view of the cosmos. When we look out intospace we see celestial bodies lying with astronomical distance from Earth. There is no guarantee that what we see out there in space is actually there where we are observing it, and it may be that we see multiple images of the same star! Studies have shown that thenumber of distorted images of an n-mass (n > 1) plane lens can not exceed 5(n -1) for lighter lenses or 5n for more massive lens. This mathematical thesis covers gravitational lensing and their properties that distort light rays coming towards us from distant celestial bodies. In addition of gravitational lensing, its properties and the proof of the maximum number of distorted images, a bigger part of this work even cover two very interesting mathematical tools - the so-called Schwarz function and Bezout theorem..

My work has been to create a magazine for iPad to explore this format, whichthere are mixed feelings about. Instead of seeing the digital format as an enemy ofthe printed magazine, I have chosen to see it as an opportunity.I have given myself the task of designing a magazine that can justify the useof the digital magazine. I have looked at the identity of the magazine, but mainlyexplored the format and its prerequisites.I was triggered to do the project when I saw people who are just making a pdfof the printed magazine and publish it digitally. I have during my work discoveredhow near or far away you can be from the printed magazine.The format of the iPad has multiple aspects to look upon; one that turned outto be clear in my project was navigation. Working with a spread has its problemsand opportunities; the same applies to an article that is larger than a screen.

Every now and then new political ideas appear which creates debate. A current example of political debate is the one which concerns the creation of a feminist political party in Sweden -Feministiskt initiativ. Apparent in the current debate is that there are two existing conflicts of ideas present. The liberal thought of politics of ideas stands against feminism's demand for presence in the political life. And the other, the conflict which concerns the question of where a line between the public and the private spheres should be drawn.

In this report a model was constructed in order to determine how a number of covariates influence the gross domestic product, GDP. The covariates were chosen depending on their expected influence on GDP, for example education and life expectancy. The data used in this report are collected from the World Bank. The model to describe GDP has been calculated using multiple line arregression. In order to reach a reliable final model the number of covariates has been gradually decreased to eliminate insignificant covariates.

After recognizing a lack of children?s voices in the debate about the children?s book Kivi och monsterhund and the gender-neutral pronoun hen that occurred in the beginning of the year of 2012, I decided to interview pre-school children about the same book. My purpose with the study was, using semi-structured group interviews, to examine how 6-year olds talked about the main character Kivi. With the help of Judith Butler?s theory of performativity, I have studied how the children constructed Kivi?s gender in their speech.

The Voices of ParliamentCongruence between party and personThe purpose of this study is to determine the congruence between the opinions of members of parliament and their respective party policies, in order to further determine the cause of poor voter-party congruence and whether or not the individualization of the parliament could affect the character of legislation. To do so, the study asks two primary research questions;- "Are the communicated party policies representative of the opinions of the members of parliament?"- "Is the discrepancy between party policies and the opinions of the members of parliament sufficient for the individualization of parliament to substantially affect the parliament's decisions?"The study answers these questions by comparing the average of self-described left-right stances of members of parliament with the average of voter-described left-right stances of party policies, using existing survey data and a constructed left-right dimension. The lower average is then subtracted from the higher average, creating a value of congruence that is then inserted into a constructed congruence dimension. The primary findings of the study suggest that there is substantial congruence between party policies and the opinions of the members of parliament, and that the discrepancy between them is unlikely to substantially affect the parliament's decisions..

The aim of this Master?s thesis is to investigate the factors of children?s voluntarily reading in their spare time. We also want to know if the children choose non-fiction books for their voluntarily reading. The method as well as the empirical basis of this study is qualitative, with interviews of twenty-eight children in ages between 9 and 12 years. We conducted nine interviews with 3?4 children in each group.

AbstractTitle: Corporate Social Responsibility within the banking-sector ? A case study of the CSR-strategies of Nordea.Seminar date: 130108State University: Mälardalen University ? Västerås Institution: School of Sustainable Development of Society and TechnologyLevel: Bachelor Thesis in Business Administration ? FÖA300Authors: Samir Ghaddab, Josefine Jonsson, Sam LindforsExaminor: Cecilia Lindh Thillenius Supervisor: Magnus LinderströmPages: 35 Attachments: 1 Key words: CSR, bank, sustainability, communication, awarenessResearch questions:- What is the nature of CSR-related work in Nordea, and how do they practice CSR? - How can Nordea raise awareness about CSR among employees and other stakeholders?Purpose: The purpose with this thesis was to get an increased understanding about how Nordea interprets CSR and how they work with CSR. Finally with relevant theories in mind, this thesis presents suggestions on possible changes and opportunities within Nordea?s CSR-activities and how they can co-operate with NGO?s like CSR Sweden.Methodology: A qualitative study with deductive methods. A case study has been done with semi-structured interviews at a company and a nonprofit organization.Conclusion: The reality in which Nordea operates conforms to the theories presented in the thesis when we look at the driving forces behind working with CSR and the demands on the company that stakeholders have.

The aim of this study was to describe and analyze if and in that case how project Speaking English contributes to improved skills in English to pupils in reading and writing difficulties. The project started out in order to give pupils in reading and writing difficulties an alternative to the regular English teaching. The study was carried out in two nine-year compulsory schools. We have conducted interviews with both teachers and pupils to see what they think about the project. According to the teachers we interviewed Speaking English contribute to improved skills for the pupils and they also believe that their chances to pass the 9th grade will increase.

Syftet med denna studie var att beräkna preliminär prevalens för sjukdomen multipel skleros (MS) i Värmland, med prevalensdag 21 december 2002, och jämföra den med andra prevalensstudier i Sverige. Utifrån patientjournaler vid länets sjukvårdsinrättningar noterades basala och medicinska data på ett registreringsformulär. För klassificering av MS har Poser ?s kriterielista tillämpats och granskningen av journaler har utförts av specialist neurologer. Prevalensen för definite/probable MS i Värmland, baserad på siffror som var insamlade augusti 2004, var 151/105 (95% CI 136-165), för kvinnor var prevalensen 211/105 (95% CI 187-235) och för män 89/105 (95% CI 73-105), vilket innebär att MS var 2,37 gånger vanligare för kvinnor.

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 purpose with this thesis is to analyse different factors that can explain district heating prices for energy companies in Sweden. We are further interested in examining if the prices is affected by the use of industrial waste heat in their production and the company?s ownership structure. The method applied is a multiple regression analysis using a panel data set of 50 companies over 5 years (2008-2012). The data used is yearly data obtained from the Swedish district heating association.

Syftet med detta arbete är att designa och utvärdera ett stridssystem för ett rollspel, som skall ha en högre grad av meningsfulla val än de två kommersiella rollspel som utvärderas tillsammans med det egenutvecklade stridssystemet. För att få en högre grad av meningsfulla val så designas stridssystemet efter två teorier: triangulära val och multiple-dice systems. Graden av meningsfulla val utvärderas genom strukturerade intervjuer där respondenterna svara på en enkät.Utvärderingen visade att det egenutvecklade stridssystem inte uppnådde en högre grad av meningsfulla val än de två kommersiella stridssystemen.Rollspelet bör i framtiden modifieras för att korrigera de problem som framkom genom utvärderingen. Utvärderingsmetoden som användes i arbetet kan utvärdera graden av meningsfulla val i alla typer av spel..

AbstractBetween 1989-1996 and 2000-2003 a civil war took place in Liberia. During the war many, many people were killed or were forced to flee. Another of the war's characteristics was the high number of women being sexually abused and beaten by the soldiers. The aim of this thesis is to analyze to what degree the peacekeeping personnel in Liberia, foremost staff working for the UN and agencies related to the UN, have implemented Resolution 1325 in their work. Resolution 1325 was adopted by the members of the United Nations Security Council in year 2000 and aims to increase the efforts made to secure women's rights and security in parts of the world where war and crisis prevail.

The purpose of this study has been to increase the awareness of what significance models of explanation have for intervention programmes, aimed at perpetrators of intimate partner violence, within the Swedish social services. The study is not gender neutral, it centres on male batterers in heterosexual relationships. The study is based on qualitative interviews with five people working within the topical field. I analyzed their statements using an ecological model of understanding violence. The main finding was that the people I interviewed had a multiple understanding when it came to comprehending the violence, but that when it came down to the actual intervention they targeted mainly on elements in the individual spectra, such as feelings of frustration.