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..

The purpose of this thesis is to examine the narrative elements in three of the Swedish artist Karin Mamma Anderssons paintings and try to see what kind of stories that might be hidden in these paintings. I have chosen three different themes as tools for this study. They are: the meaning or the importance of the titles, painting as a medium and the narrative elements or components in the paintings. Furthermore I also use the semiotic method in my analysis based on the ideas of Roland Barthes combined with a feminist theoretical standpoint with a gender perspective. This means my study is based on the reception of these images and what kind of message they might carry.

 AbstractMy curiosity of students' use of images for reading led me to seek knowledge of the students view on the text illustrations in the literature and through interviews. This study is about how pupils in the school year 2 experience reading, especially with images. The purpose is to investigate the significance of illustrations in reading for students in school year 2. I also want to find out how students see themselves as readers and how the survey material believes that the students comprehend reading. Eight children, both girls and boys have participated in the interview.

Even though terrorism has been on the political agenda for several years there is no general accepted definition of the phenomena of terrorism. Several scientist do also apply that terrorism have changed after the 9/11-attacks. The purpose with this thesis was to analyze and compare the image of terrorism represented by the United States, United Kingdom, Sweden and Norway, in an attempt to draw conclusions about similarities and differentials. The material that was used was these four nations individual counter terrorism strategy. This was made by using idea analysis and self constructed dimensions based on earlier science about security, terrorism and international law.

Abstract The present study examined if early deaf people and people with severe hearing loss perceive visual information differently than hearing people. An experiment was conducted with eight deaf participants and eight participants with normal hearing. The participants were between the ages of 18-74 years. The participants were asked to look at fifteen different images portraying manipulated illusions, and then assess if the images were of the same size. Subsequently another image depicting a different illusion with a face hidden in it was presented to the participants.

Abstract The present study examined if early deaf people and people with severe hearing loss perceive visual information differently than hearing people. An experiment was conducted with eight deaf participants and eight participants with normal hearing. The participants were between the ages of 18-74 years. The participants were asked to look at fifteen different images portraying manipulated illusions, and then assess if the images were of the same size. Subsequently another image depicting a different illusion with a face hidden in it was presented to the participants.

Theory has concluded that consumers evaluate advertising not only based on what the advertiser's message aims to communicate, but also how the message is communicated. As the most popular activity on the world's largest social media channels is to upload and share photos, it has become crucial for advertisers to define strategies that maximize the reach of photo posts. Two observed variations of images used in posts are graphical images and digital photographs. The aim of this study is to investigate which of these two strategies that generate most positive impact on the sender and its brand. 230 users of the Chinese Facebook and Twitter counterpart, Sina Weibo, were exposed to manipulated Sina Weibo posts after which they answered a survey.

The aim of this essay was to determine 1. How Muslims were described in the Sweden Democrats official magazine and 2. What the purpose with their descriptions could be. The material, the SD-Courier was chosen due to it being an official magazine that was easily accessible. A hermeneutic method was used where each article selected was read several times to create a greater understanding for the material and the phenomenon within.

According to law all Swedish authorities must express themselves using correct, plain and comprehensible language whenever they communicate with the citizens in order to make it easy to understand what needs to be known to participate in the Swedish democratic society. I would like to explore if there are more tools than the language that could be used to make their communication easier to comprehend, in this case images and stories. In this essay I will investigate the relationship between the written words and the visual components ? images and illustrations ? in brochures from Swedish authorities. I will also try to identify possible narratives in the brochures, and examine the functions of these narratives.

Studies have shown that politicians are significantly more likely to become victims of violent crime than other citizens in Sweden. In fact increasing political rank and engagement are directly proportionate to increased risk for violence. Threat towards politicians is not only dangerous to the individuals involved but also to the democratic system as a whole.Political scientists the world over have done a lot of research on democracy, but I have been unable to find a single method or theory that examines how violence, threat and harassment affect political leaders and democratic systems.The aim of this study is to expand the existing model made by Tommy Möller, professor in political science. In his model he presents 11 factors that affect political leaders ability to act. My aim is to develop his model by adding a 12 th factor ?violence, threat and harassment?.

This Master?s thesis presents a descriptive study of the intellectual process to describe images in such a way that they can be incorporated into written information systems. The purpose of the thesis is to concentrate on the scientific development for the last two decades, in the area concerning the description of images so that they can be organized and incorporated into information systems and possible to retrieve when searched for. Library and information science (LIS) has a strong tradition of turning to the iconographical theories of Erwin Panofsky and to semiotics according to Roland Barthes, for models and theories for the interpretation of images. The question for this thesis is whether LIS in this scientific field, has deviated from these models and theories, or are Panofsky and Barthes and their scientific work still providing for intellectual and practical guidance for LIS within this area..

A philanthropist needs long arms- An investigation on how to illustrate difficult wordsThe feeling of not understanding all the words that I read made me initiate the project of investigating the capacity of drawn images to increase the understanding of difficult words. I?ve been working with my own personal understanding and skills in illustration.My aim was to reflect on the function, composition and manner of my illustrations. I wanted the images to be clear enough to explain and function as a help for memorizing the words but also open enough to give them a new dimension. One of my conclutions is that my way of changing the original shape of a body in my drawings, by giving it new functions such as longer arms, helps me to explain the words clearer and deeper.

Lifestyle magazines portray women in different manners and have an influence on how media consumers create self-images. The importance of knowing how different visual representation of the female acts out in magazines with large target audiences is therefore of weight for the magazines? readers to understand. This thesis analyze how the two lifestyle magazines ELLE and LOVE portrays women in images and how they in turn create ideal images of women.The thesis has been conducted through a qualitative analysis of 5 images from each magazine that represents the magazines artistic styles. The theories used in this study are semiotic image analysis and visual text analysis viewed from a gender- and discourse perspective.The conclusion of this thesis is that ELLE portrays women as strong, happy and feminine, with at tendency towards androgyny, while LOVE describes women as inferior and sexual objects constructed for the male gaze.

Image editing software offers unlimited possibilities to alter an image. Provided that digitalinnovation is not altogether positive, it is important to develop knowledge of its negative sides. Thispaper examines the use of digital image processing from a critical IS perspective. Throughqualitative interviews with professional retouchers, the study provides a picture of their ethicalrelation to the software they use for retouching images in advertising. Though, it turns out that thecustomers who order the retouching holds responsibility for what is altered.

 AbstractMy curiosity of students' use of images for reading led me to seek knowledge of the students view on the text illustrations in the literature and through interviews. This study is about how pupils in the school year 2 experience reading, especially with images. The purpose is to investigate the significance of illustrations in reading for students in school year 2. I also want to find out how students see themselves as readers and how the survey material believes that the students comprehend reading. Eight children, both girls and boys have participated in the interview.