Syftet med denna kandidatuppsats är att ge en ökad förståelse för ljusets betydelse för att människor ska känna sig trygga i städers offentliga rum efter mörkrets inbrott. Mörkret har alltid skrämt människan och varit en begränsande faktor i det vardagliga livet. Som skydd och för att kunna utnyttja dygnet på bästa sätt har ljus använts i otaliga former genom åren; allt från eld till elektricitet. Det artificiella ljuset har haft en stor betydelse för hur vi idag kan leva våra liv. Trots att dagens städer är fulla av ljus under dygnets mörka timmar finns en otrygghet bland många att röra sig i stadens offentliga rum efter mörkrets inbrott.

The aim of our study is to ascertain whether a hanging suspension fluorescentlamp for a private home environment is going to be attractive for a largeaudience. We want to open up for new uses of fluorescent lamps as lightsources.The main approach in this work is how to design a fixture with fluorescentlamps as a light source that will meet the requirements and requests of thehome environment could look like. At the same time we want to make a newimpression of how a fluorescent light source.Primarily we used a quantitative method, but this was rejected after a pilotstudy. Instead we used a qualitatively based method in the sense that weconducted a group interview as well as individual interviews.Based on data from the interviews and our preliminary work a prototype wasbuilt. This prototype is a fluorescent fixture equipped with 2x14W T5fluorescent lamps, dimmed separately.

Many species and hence biodiversity depend on old, large oaks (Quercus robur) with hollow trunks. The populations of oak-living organisms have to migrate to a nearby old oak in order to survive the death of the host. The oak district south of Linköping, Sweden, is unique in area and the number of old oaks. It is anyway doubtful whether regeneration of oak will secure future continuity. Oaks are light-demanding and thrive in open pastures.

The aim of the study was to examine the retinal ON- and OFF-pathways of the canine electroretinogram (ERG). The ON- and OFF-pathways are used to distinguish objects from their backgrounds. A dark object is discernible from a lighter background using the OFFpathway and the ON-pathway is used to descry a light object upon a darker background. This study shows that the dog ERG has both ON- and OFF-responses and that these responses can be separated by prolonging the flash duration over 50 ms. The dog OFF-response waveform was more similar to the cat OFF-response than the human OFF-response (Frishman, 2006; Zrenner and Gouras, 1979). In this study six female three-year-old Beagle dogs were included. Both background and flash stimuli were provided by LEDs (light emitting diodes) with a wavelength of 470 nm, a wavelength that is absorbed almost as effectively by the canine M/L-cones as by the S-cones. These stimuli gave ERGs with both ON- and OFF-responses.

The purpose of this bachelor thesis is to identify the relationship between color and semiotics and how a person?s opinon, regarding a game character?s different characteristics, can be affected by the use of various colors. Prior to this study people were asked, through an online survey, to write down words that they associated with different colors. The colors were then divided into four different groups depending on whether they had been associated with positive-strong words, positive-weak words, negative-strong words or negative-weak words. In order to further shed light on the effect of colors, the four palettes, consisting of the colors associated with the different words, were then used separately to give color to two characters: a man and a woman.

This thesis describes how the development of a mechanical enclosure to an alarmsystem proceeded. The project was made on behalf of Inferno Light Indusec AB.The goal set to this housing would offer a home alarm in which Indusec?s uniquesound system would give the customer a new alternative on the market. They wantedto, among other things, create an aesthetically but at the same time affordable alarm.The aesthetic theme is something that is missing in today?s market.

Although Social Democratic Memoirs comprise an extensive material, these texts have not attracted any systematic analysis as a distinct and yet varied form of textual genre. The focus in this MA-paper is the Swedish Social Democratic Memoir as a rhetoric genre. The main primary material is memoirs of the pioneer August Palm (1849?1922), the father of the nation Tage Erlander (1901?1985) and the political leader Göran Persson (1949?), published 1905, 1972?82 and 2007, respectively.The general aim is to find out what is the driving power of the memoirs and, more specifically, to shed light on the images of the party history and the history of the welfare state. The method is a comparative analysis of these texts.

The construction of buildings and paved surfaces changes the natural water balance.Precipitation generates surface runoff and storm water instead of infiltrating into the soil.Storm water has come to be considered as a major source of pollution in lakes and streams inthe vicinity of urban areas. Reduction of pollutants in storm water is a key action in order toprotect sensitive recipients and maintain high water quality. Storm water is traditionallytransported by storm sewers to the nearest recipient. In recent years the approach to stormwater management has changed; storm water should primarily be disposed of on site, throughlocal disposal of storm water, LOD. LOD is created by a combination of the function ofseveral smaller local facilities and the general sewer system.

The purpose of this essay has been to compare different constitutions, and their outlook on citizenship, rights, obligations and natural duty. This has been done in the light of the political philosophy, in order to give the answer to four questions. These questions are: Which rights and obligations can be seen in the constitutions, and how can it be interpreted. Can there be signs of any political philosophy in the constitutions?  Are there any differences between the constitutions regarding citizenship, rights, obligations and natural duty? If so, what are the differences? Can the rights be seen in a further extent than the obligations in the constitutions?I have conducted a qualitative comparision study and analyzed the political philosophers and made a classification scheme of their views.

With examples from a single classroom situation, several educational moments show what goes on between the teacher and the student. The teacher?s responsibility in the learning process is, with a gesture frozen in the air of the moment, to lead and follow the student in her tentative efforts at seeking knowledge. Initially, it is an attempt to shed light upon the "not yet seen" with a certainty that the student herself possesses the capacity and the aptitude to reach greater insight and clarity in her understanding. The Validation/Feil Method presented in this instructional situation illustrates how best to communicate with elderly people suffering from Alzheimer?s dementia.

Denna rapport är ett resultat av att System Andersson vill utreda uppbyggnaden av deras materialplaneringssystem. System Andersson har valt att dela upp systemet i ämnesområden till flera olika projektgrupper, där författarna till denna rapport ska ge förslag på parametrar för att genomföra materialanskaffning. Målet med de framtagna parametrarna är att materialplaneringssystemet ska generera inköpsförslag, där det tydligt ska framgå vad som ska köpas och vad som ska tillverkas.  Författarna ska ta fram två olika lösningsförslag, Light och Advanced. Syftet med denna uppdelning är att systemet ska anpassas till olika kundsegment. För att ta fram parametrarna har en litteraturstudie och en kundundersökning genomförts. Litteraturen som har använts är tidigare kurslitteratur samt annan litteratur inom ämnesområdet för att validera kurslitteraturen.

Today, youth crime is a topic that recurs daily in the news and politics; the subject arouses motions both within the professional community and among private individuals. The purpose of this study was to shed light on how social workers reason and work with young people aged 15 and above who are in criminal environments. We also shed light on how motivation can contribute to young people accepting the voluntary interventions that social workers have available. The study helps draw attention to the potential challenges that social services face when motivational work is insufficient, and the concern is not sufficiently high to warrant the use of coercive interventions. Our empirical material was collected using semi-structured interviews with social workers who have a degree of Bachelor's degree in Social Work, whose work is to carry out investigations of young people who, due to their own behavior, may be in need of support or protection from social services.

In Uppsala, Sweden, Vattenfall has a combined heat and power plant. On the premises there is an engineering workshop with old fluorescent and mercury lamps that need to be replaced. This provides a great opportunity to save energy and money by installing more efficient lighting. The main purpose of this study was to present two functional and energy efficient lighting systems including control system. The lighting systems were designed by investigating the working environment, measuring illuminance and by simulations in the software DIALux.

Students? performance in school is dependent on the indoor climate. This report studies four schools regarding air quality and thermal environment. A survey was made at the schools as well as measurements of carbon dioxide, dampness, thermal climate and, as an indicator for the furniture?s capability to collect dust, shelf factor and fleece factor.

SAMMANFATTNINGÖvergödning har de senaste åren blivit en stor och omdebatterad fråga i många EU- länder.Även om problemen har minskat en del är detta inte tillräckligt, vi ser fortfarande fiskdöd,syrefria bottnar och giftiga algblomningar. Hur långt ska vi gå för att kunna övervinnaövergödningsproblemen? Genom olika sorters lagstiftning, ekonomiska styrmedel ochrådgivning har vi nått en bit på vägen, men fortfarande krävs det mycket arbete innan vi haruppnått målet. Jordbruket har pekats ut som en av de största källorna till övergödning pågrund av överskottet av kväve och fosfor som varje år urlakas ur våra jordbruksmarker.Inom EU finns sedan 1991 en gemensam lagstiftning; Nitratdirektivet. Syftet med direktivetär att minska nitratföroreningar och andra föroreningar från jordbruket, då dessa påverkarsåväl yt- och grundvatten som kust- och havsvatten.