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 aim of this qualitative study was to examine bereaved individuals? experiences of support from their social networks and participation in support groups. The theoretical framework is based on theories about social support and parts of the attachment theory. Data were collected from four interviews and analysed by the study?s theoretical framework.

The aim of this study was to understand how staff at residential homes for unaccompanied children experiences their professional role. The main focus of the study was on how the staff defines their professional role and how they handle the situation to be close and at the same time keep a distance towards the children in care. Five women and two men were interviewed at five different residential homes for unaccompanied children. By symbolic interactionism we are able to see that the professional roles are shaped through interaction with the children in care as well as in relation to colleagues. The main role for the staff is to build up a relationship with the children.

This report describes the process of developing a user-friendly and responsive archive website. The website is a Hi-fi prototype and was created for the company JG Communications, to serve as an archive for their customers? style guidelines. To create this website I have used HTML5 and CSS3 to make it responsive for various computer screens. I have also used PHP and some JavaScript to make some of the functions and Adobe Photoshop and Illustrator to make design elements for the prototype.

Tidig socioemotionell hälsa har visat sig ha betydelse för barnets senare utveckling (Leuzinger-Bohleber, 2014). Om problem i denna uppstår kan det leda till psykisk ohälsa vilket gör det viktigt att tidigt undersöka barns socioemotionella hälsa. Syftet med studien var att undersöka socioemotionell hälsa hos treåringar i Västerbotten. Vidare, att undersöka om det finns könsskillnader samt om det finns ett samband med kostvanor. För att undersöka detta användes självskattningsinstrumentet Ages & Stages Questionnaire: Social Emotional (ASQ:SE) där föräldrar till treåringar (N = 878) skattade barnets  socioemotionella hälsa.

Kronisk smärta drabbar många personer och kostar samhället stora summor pengar varje år. Det är inte bara den kroniska smärtans inskränkningar i den drabbades rörelseapparat, utan också dess påverkan på den psykiska hälsan. Syftet med detta arbete är att utreda på vilket sätt den psykiska hälsan påverkas hos personer med kronisk smärta. Metoden som använts är litteraturbaserade studier med kvalitativa artiklar och bygger på Granskär & Höglund?Nielsen (2008).

The aim of this study is to gain an understanding of former criminals' own experience of their entry into criminality and to identify and analyze the factors they use to explain their path into criminality. To study this area, a qualitative method has been applied with five semi-structured interviews of ex-criminals from an organization that works to help and support people who have previously been involved in crime by offering employment, education, and rehabilitation in order to be further integrated into society again. To analyze the respondents' stories about their way into criminality, the theory of social bond by Hirschi has been applied and contribute with insights in later criminal acts as well as the theory has been problematized to some extent. Today, there is a lot of research on different aspects that can explain the way into criminality in different aspects, on the other hand, research has largely been measured with a quantitative approach with statistics and self-reported data. This study therefore intends to apply a qualitative approach, where ex-criminals themselves describe their path into criminality.

The web has a broad affect on the global economy and can among other things be used for web based information systems (WIS). These systems have grown from being used as a market platform to support all activities in the work of an organisation of today. To survive in a turbulent competitive environment, companies must start to cooperate with their customers instead of just collaborate with them. Can an IT-consultant company use a WIS as a tool for keeping in contact with existing customers to attain this cooperation? A WIS could strengthen the relation between customer and supplier and through that have a possibility to increase the customer use since it can facilitate business processes and imply that services can be offered in a new way.

Sensory marketingAn effective instrument for libraries? We are living in a world of constant communication and information and because of that, marketing in general seem to have no distinctive effect. Consumers become overwhelmed by all the advertising messages. Due to this, it is clear that organizations like libraries must create a deeper and more personal connection to increase user satisfaction and foster the use of services, among both users and potential users. One way to achieve this is to make use of all the emotional elements of a product or a service.

The purpose of this thesis is to examine how gender is constructed in presentence reports written by social workers? as mandated by 11§ LUL. Young offenders are often assigned normative masculine or feminine attributes by personnel at treatment centers, girls are considered emotional and in need of support while boys are considered disorderly and in need of structure. Young female delinquents are victimized which affects their culpability; they are less likely to be held responsible for the crimes they committed. Young male delinquents are viewed as aggressive and in control; they are more likely to be held accountable for their criminal actions.

The different material layers as part of a road construction fill all a function so theroad becomes durable, safe, comfortable and aesthetically pleasing. Recently, anew group of construction materials started to play an important role in roadconstruction ? geosynthetics.This thesis addresses the two most common types ofgeosynthetics used in modern road construction, namely geogrids and geotextiles.The most common use of geogrids is reinforcement of poor subgrade by usinggeogrid soil reinforcement, which occurs when road material particles wedge inthe geogrid?s mesh. Geotextiles act partly as a barrier that prevents the finermaterial in the below ground from being mixed with coarser upper material andalso act as a load spreader.Road contractors often face a choice of whether geogrids and/or geotextiles areappropriate in a particular road project and also how much profit the choice mightbring. This phase in the tender calculation process is the intended scope of thisthesis.The thesis deals with both the "hard" cost-function aspects and the "softer" values e.g.

Jerlemar, M & Nordström, J., Patienters upplevelser av att leva med trycksår. En litteraturstudie. Examensarbete i omvårdnad, 15 högskolepoäng. Malmö högskola: Hälsa och samhälle, Utbildningsområde omvårdnad 2011. Bakgrund: Trycksår är ett vanligt förekommande sjukdomstillstånd som drabbar framförallt äldre och rörelsehindrade. Trycksår kan medföra fysiska och psykiska komplikationer hos den drabbade.

The objective of this project was to develop an application for mobile phones using the Android operating system. The main goal was, with the help of GPS, to pinpoint locations, measure distance traveled and illustrate the progress on a map. Functionalities for just showing the map, fetching addresses and saving to a database was also implemented. The result of the work was a proper application, called MeasureApp, that fulfills the goals set in the planning stages of the project. MeasureApp can be used to measure distances where accuracy is not a main factor, i.e walks or runs.

Homework is and has always been a part of school work. It may take a lot of time from the pupils? leisure. Despite this, you cannot find anything written about homework in the curriculum. How can this be? Is homework necessary and what is its function?The purpose of this study is to find out how a few teachers in primary school reason about homework.  What are their attitudes towards homework and what functions do they see?To get an answer to this I studied literature and research reports, and did four qualitative interviews with teachers who teach grades 1-6.The results show that all the teachers give homework to their pupils, but their opinions about homework differ.

The purpose of this paper is to analyse how work by Swedish artist Ylva Ogland (born in 1974) function as an eye-opener for the social marginalisation of people identified with homosexuality, prostitution and drug addiction. Although highly present in reality, these phenomena were historically, and are still today, hidden from view in public discourse. I have focused on the installations Rapture and Silence and Things Seen, and the still-life painting called Xenia. I argue that these artworks carefully represent the above-mentioned marginalised groups, by way of references to comparable motives in the history of art, from neoclassicism in France, to realism and romanticism..