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427 Uppsatser om Edge zone width - Sida 10 av 29

Effekter av predationsrisk på sånglärkors (Alauda arvensis) habitatval på åkermark

Along with other European farmland birds, the skylark (Alauda arvensis) has declined rapidly since the 1970?s. Between 1975 and 2003, the Swedish population of skylarks declined with 64 %. In Britain, the decline is often explained by alterations in farming practices in general and the shift from spring-sown to winter-sown cereals in particular. The dense vegetation structure of winter cereals is limiting the number of breeding attempts possible, causing the entire population to decline.

Visuella elements påverkan på konsumenters beslut till köp
av yoghurt

The purpose of this thesis is to provide a better understanding of how dairies use colour, picture and shape in order to influence customers? buying decisions of fruit yoghurt. In order to reach this purpose the research was conducted through case studies of three dairies. In this research three research questions were created with focus on the visual elements colour, picture and shape. The method of data collection was performed through interviews with dairies as well as documentations.

Brandväggar ur hemanvändarens perspektiv

Det huvudsakliga syftet med denna rapport var att undersöka några av marknadens brandväggsprogram som kunde tänkas vara lämpliga för vår målgrupp, det vill säga en hemanvändare. Detta eftersom det idag inte finns någon lättillgänglig information inom detta område. I sökandet av brandväggsprogram fann vi en uppsjö av olika typer av brandväggar och därför har denna undersökning avgränsats till endast fyra brandväggsprogram, nämligen Norton Personal Firewall, Sygate Personal Firewall, Tiny Personal Firewall samt Zone Alarm. Denna avgränsning gjordes genom att välja ut de som experter inom området utvärderat och har ansett vara de som är säkerhetsmässigt bäst på marknaden. Undersökningsgruppen bestod av 28 testare som passade in i vår definition av en hemanvändare. Tyngdpunkten i vår rapport har lagts på brandväggsprogrammens användarvänlighet, eftersom vår hemanvändare oftast inte besitter de tekniska kunskaper som i allmänhet krävs.

Höga hus med deformerbara fundament på pålar : Pålkrafters avvikelse visavi klassisk teori samt förskjutningar beroende av vindlast

When forces in foundation piles are calculated according to classic theory, thefoundation are assumed to be infinitely rigid which means that the foundation will notbend. High buildings need their whole width to be stable and use the ground floorwall as a foundation. But when, for example windows are needed in the ground floorwall, the stiffness of the foundation decreases which change the forces in the piles. Inthis report the difference of pile forces versus classic theory has been analyzed, and ifpile forces can be calculated as in classic theory. Further on, the effects of the wallmovement were analysed and how the buildings crack safety would be affected by themovement at the ground floor.

Företagsportalen: morgondagens arbetsplats

Today we see a fast developing of the market for mobile communication, both in an increased and changed mobile use, but also in the development of new technologies and services. Much that can be performed on Internet/Intranet today with a PC will in some years also be possible to do with a mobile terminal. Mobile Internet will probable take place when new technologies as GPRS, EDGE and UMTS will be in use. These technologies in combination with the development of new terminals and services will bring new capabilities for both companies and private users. This report describes how a portal should be designed in order to meet the needs on the market.

Malmös digitala klyfta

Differences between groups or individuals in a society with regards to access to information and communication technologies (ICTs) are known as the digital divide. The digital divide pertains to differences in physical access to computers and the Internet as well as knowledgein using technology. Important factors affecting the digital divide are disabilities, age, gender, socioeconomical background, ethnicity and geography. The digital divide appears on several levels: internationally, nationally, regionally and locally. Individuals who, for some reason, have limited or no access to information and communication technologies risk, among other things, to experience social exclusion.

Hackerör på Sydsvenska höglandet : vad skiljer röjningsröseområden från celtic fields, stensträngsområden och bandparcellområden?

From the pre-Roman and Roman Iron Age, a number of different fossil agrarian landscapes can be found in southern Sweden - clearance cairn areas, celtic fields, stone-wall complexes and geometrically laid-out strip fields. With two different comparative analyses, this paper tries to explain some of the differences between clearance cairn systems and the other fossil field systemsThe shape of the early Iron Age agrarian landscape varies between different provinces of southern Sweden. At Gotland, celtic field systems were laid-out before 500 BC. In Småland at the same time, areas with clearance cairns were created. How can the difference be explained? The different physical appearance of clearance cairn areas and celtic fields can be explained by the different ways to handle the ard in till and in sandy soil.

Bottensubstratets inverkan på föryngring av Flodpärlmussla

The freshwater pearl mussel (Margaritifera margaritifera) is threatened throughout its range. There has been a substantial decline of the species and one major reason is habitat degradation. We investigated how the substrate composition of the bottom floor affects the regeneration of the mussel by analyzing data from the Västerbotten County Board?s inventory of the freshwater pearl mussel. The results implied that fine material such as fine sediment and sand might be detrimental to regeneration whereas gravel and boulders and in particular stone seem to be beneficial.

Link QualityControl (LQC) i GPRS/EGPRS

This master thesis has been done at Enea Epact AB. The purpose of this thesis is to develop and implement a Link Quality Control algorithm for GPRS/EPGRS in the current testing tool. A Link Quality Control (LQC) shall take quality values from mobile stations and base stations and decide a codingsscheme that opimizes the throughput of data. The Advantage with LQC is that it adapts the used coding scheme to the channel quality. If the channel quality is too bad for the used coding scheme, a slower coding scheme with more redundancy should be selected.

Survey of regulations concerning pesticides in Sweden and the EU : cultivation techniques and competition aspects for Swedish onion and apple producer

As a member of the EU, Sweden has, in some cases, transferred the controlling rights to the Union. This means that the rules defined by the EU must be followed in all member countries, including Sweden. The European Agricultural policy constitutes the largest part of the EU's annual budget and is in contrast to many other areas fully funded at EU level. The last decade, many new regulations on chemicals and pesticides have been introduced which brought great changes and a lot of work throughout the Union, including Sweden. Sweden has always had a strict policy on chemicals and has been at the forefront when it comes to sustainable agriculture and environmental management.

Långa skuggor med shadow maps

Skuggor i 3D-miljöer är ett mycket efterforskat område, och detta arbete koncentrerar sig på shadow map-algoritmen. Det finns ett problem med denna algoritm, för då en shadow map projiceras på en yta som är större än sig själv så bildas stora trappstegseffekter, vilket kallas aliasing. Problemet som har undersökts är hur olika shadow map-algoritmer i en miljö med långa skuggor beter sig, där ett minimerat antal artefakter så som brus och aliasing är synligt. För detta undersöktes Percentage-Closer Filtering (PCF), som är en variant av shadow map, med olika samplingstekniker ? och även en vidarebyggnad med Percentage-Closer Soft Shadow (PCSS) implementerades.

"Ska vi leka?" : En kvalitativ undersökning av inkludering och exkludering i fri lek i förskolan

The aim of this studyhas been to capture preschool children's strategies, when they include and exclude each other in play. My aim was also to find out how children choose to integrate into an already existing game. My questions were: What strategies are used by the children at the preschool when they want to exclude or include each other? How to integrate the children when they want to be involved in an ongoing game and how they will be received during the time of play? My theoretical starting points are from Vygotsky's theory of proximal development zone, and Michel Foucault's perspective on power, and also research on the subject.The empirical study was conducted using the observations at two preschools. The children I observed were between four to five years old.The results show that children used different strategies, and when the strategy did not work so the child could switch to another.

Framtidens meny för ett IT-system

The mission was to create a prototype of a menu system for the companySystem Andersson AB. The instructions were that it has to be as interesting andmodern now as in 20 years. We had to look at technology from the cutting edgeof development to make our prototype survive in the future. WindowsPresentation Foundation (WPF) was the technique we focused on. There areonly a few applications that take advantage of WPF today, but it is predictedthat WPF will be the next generation method for developing applications to theWindows platform.To make our menu visually appealing, easy to use and at the same timefunctional, we followed the clear path and guidelines that are available ininteraction design.

Bildernas byggstenar : En studie om pixlar och vektorers egenskaper i form av digitala material

With a new digital world that runs parallel with our physical one, we are also facing a new type of architecture and new materials that this new architecture is built on. In this thesis I examine pixels and vectors, two of the digital materials used to create pictures. By approaching them as digital materials, I have mapped their different qualities, when and where one or the other is more or less applicable and the reason behind it. My main research question asked was the following: Are the (digital) materials challenged outside their primary fields of application, and in that case, in which way? With this question in mind, I carried out a semiotic picture analysis on four pictures, later on dividing them into four different categories, based on their different qualities and their ability to deliver information.

Folkbibliotekarier - Kompetens, identitet och status

The aim of this bachelor?s thesis is to develop knowledge about how librarians experience their professional identity, argue for their competence and describe their profession based on their professional skills, tasks, and status. The method that is used to answer the questions of the study is semi-structured interviews with five public librarians. The theory used in this essay is Ørom?s six librarian identities plus Schreiber?s experience intermediate identity.

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