Water is the most essential resource for life. In cases where drinking water is processed from surface water it is important to ensure the raw water is of good quality, and is suitable for processing through the water treatment plant.The drinking water for Västerås is sourced from Västeråsfjärden, in the western side of Lake Mälaren. The city itself is home to marinas, ports, a wastewater treatment plant, the Svartån outlet, sewage pumping stations and stormwater outlets. Because of the negative effects these activities have on surface water quality, Mälarenergi AB is interested in relocating the raw water intake point to Granfjärden, 10 km east of Västeråsfjärden. At Granfjärden the intake point would be less exposed to the activities in Västerås, and could be placed at a greater depth, resulting in better water quality.In this Master?s thesis the water quality and the pollution risks at Västeråsfjärden and Granfjärden sites are compared.

Problem: How do delivery logistics work in practice at the building site? Where are the big problems? How to make building logistics more effective? Do the site management and the haulers agree about questions concerning both parties? What is possible to gain by using better logistics? Is it possible to gain time with better logistics and by that reducing the costs? Purpose and aim: The purpose is to discover if there are any disagreements between the site management and the haulers. If disagreements occur they will be examined and probable measures based on the problems will be suggested. Another intention is to bring key ratios concerning time spent for deliveries forward. One aim is to update a similar report made in 1972.

The plants in the genus Elatine are characteristic for oligo and mesotrophic lakes. This study focuses on Elatine hexandra one of the four species in Sweden. It is stated as vulnerable by the National Environment Agency and a conservation plan with guidelines to preserve the plant in Sweden is under preparation. There have been a few previous studies investigating this plant in other countries but this is the first one for Sweden. The aim of this study was to investigate the distribution, growth and reproduction of E.

The public libraries were quick to adapt to the changes that the Internet brought on, and today library websites are an important part of the public library. To meet the needs of teens today, the library website could offer a range of contents to make it an attractive place on many levels; both the academic needs as well as social and recreational needs should be addressed.The aim of this thesis is to evaluate public library websites for teenagers in Sweden, and to examine how well the websites address the developmental tasks and needs that teenagers have. The method used is website evaluation, one quantitative and one qualitative. A total of 60 public library sites for teenagers were evaluated, using 11 criteria based on Havighursts developmental tasks. The quantitative evaluation measured how many functions each website had per criteria, and showed that the majority of the sites had one or two functions for most of the criteria.

This thesis concerns waste management on construction sites and was conducted on behalf of ICA Fastigheter.Areas of concern:How can an environmentally-efficient waste management system on construction sites be defined? What potential exists for exploiting the waste resources that are generated?How can the waste management be optimised by reducing the quantity of waste and by optimal sorting?How can the client of a project influence the waste management?The purpose of the work was to investigate sustainable waste management in the building and construction sector and to highlight waste as a resource from an environmental and economic perspective.The aim of the work was to define an environmentally-efficient waste management system, to analyse the potential that exists in waste management and to draw up guidelines for optimal waste management.The method consisted of a literature study, two visits to construction sites and four interviews.An environmentally-efficient waste management system means that the waste is managed in the following order of priority:Prevention     Reuse  Recycling     Energy recoveryLandfill     The prevention of waste is an important area that has not been adequately explored by the building and construction industry. The quantities of waste could decrease with the implementation of measures such as ordering materials in the dimensions required, prefabricated components, logistics centres with Just-In-Time deliveries, less and improved packaging and less wrapping. The reuse of waste materials and temporary apparatus as well as the use of a return pallet system are examples of reuse that reduces the quantities of waste.In most cases the source sorting work is a matter of course and the proportion going to landfill is down at a low level. The source sorting can be optimised by sorting all materials that can be reused and recycled to use them as a resource.

This Masters thesis aims to examine how Swedish public libraries deal with the new challenge of evaluating web resources. In order to study this we have asked staff involved in gathering links for the libraries Web sites to participate in a survey concerning how they go about choosing links. Apart from trying to capture this procedure it has been our purpose to establish whether the libraries feel they should provide their patrons with evaluated links at all and in what way they are influenced by other libraries or other main figures involved when choosing a link. We were also interested in the differences between libraries with large and small link collections. When defining evaluation, we have only focused on content.

Root rot is a big hurter and a huge economic problem for the Swedish and European forestry. The severest hurter is Heterobasidion annosum (Fr.) Bref and it occurs as two different species in Sweden. Commonly referred to as the P-type (Heterobasidion annosum s.s. (Fr.) Bref.) and the S-type (Heterobasidion parviporum Niemelä & Korhonen). Therefore a lot of research has been carried out in this topic to find a solution and reduce this problem, one alternative that have shown to be profitable is stump treatment in thinnings.

Internet and the digital channels for distribution have meant big changes for the musicindustry. The physical record that has been symbolising this market for a long time is slowlybeing replaced by digital based music. The technical progress during the last ten years has ledto a democratization of music production. The amateur musicians of today can produce highquality music on their laptops and later distribute it via free music sites. MySpace andYouTube are two of the biggest sites for this free distribution and is therefore my main choiseof study.The purpose of this essay was to find out how and if these changes have made a difference formusicians without a record deal to reach an audience by themselves.

Alternativ splicing är en process som ger upphov till att olika mRNA-sekvenser bildas från en enda gen, vilket bidrar till en ökad proteindiversitet hos organismen. Olika mRNA-sekvenser kan uppstå eftersom att det förekommer olika varianter av alternativ splicing som även kan kombineras på flera olika sätt: cassette exon (inkludering/exkludering av exon), intron retention (intronet behålls), alternative 5´splice-site choice (olika 5´ splice sites kan väljas) och slutligen alternative 3´ splice-site choice (andra 3´ splice sites kan väljas). För att alternativ splicing ska äga rum i olika pre-mRNA måste den regleras av cis-reglerande element. De cis-reglerande elementen utgörs av fyra grupper: exonic splicing enhancers (ESE), exonic splicing silencers (ESS), intronic splicing enhancers (ISE) samt intronic splicing silencers (ISS). Som namnen förtäljer finns de antingen i exoner eller introner, där de interagerar med transagerande faktorer, SR-proteiner (aktiverare) eller hnRNPs (hämmare).

The effectiveness of Phlebiopsis gigantea to prevent spore infections from Heterobasidionannosum and Heterobasidion parviporum on hybrid larch stumps were investigated in fivestands in southern Sweden. All sites are former forest land and the age of the trees wasbetween 9 and 13 years.The study was implemented in August 2010, a month where spore dispersal should be great.The five sites were located in previously un?thinned monocultures of hybrid larch. The sporeload in the air was studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed.

This study was conducted in Kkingo district, west of Masaka, Uganda. It compared soil macrofauna abundance in non-agroforestry farms with that of agroforestry farms. The agroforestry farms had participated in the Vi Agroforestry´s program between 1995 and 2006, and continued on their own after 2006, when Vi Agroforestry left the area. The soil macrofauna is important for soil structure and processes that are contributing to soil organ-ic matter decomposition and nutrient mineralization. They are also predators of potential pests.

This paper reports a study on the usability of e-commerce accessed through smartphones. There is much research in the usability of mobile interfaces and many sets of design patterns have been created but a few studies are available for specific domains, and in this report we focus on mobile e-commerce. In this study a framework is developed for how to design mobile e-commerce interfaces with a high degree of usability. Furthermore, the study also contributes a method to how other specific domain can develop a framework with general standards to work from when creating a web interface. By examining two sets of design principles and 14 design patterns, we evaluate which ones are critical in the design of a mobile e-commerce interface for achieving a high degree of usability.

Dust that arises during the construction process is called ?construction dust?.People who are exposed for construction dust for a long period of time are atrisk to develop several forms of lung problems, allergies and cancer. Todayconstruction dust is a huge problem during the production in Skanska´srenovation projects. Every day workers are exposed of the unhealthyconstruction dust and it can cause lung problems and diseases after 10-30years. This is a problem that must be taken into account to obtain a betterworking environment on Skanska´s building sites.Skanska Sweden AB has given two students the task to investigate possibleproblems about the spreading of construction dust.

Montagu´s harrier (Circus pygargus) is a diurnal, Eurasian raptor, which migrates from its northern breeding grounds to winter in sub-Saharan Africa. In Sweden, its core breeding area is centred on the island of Öland, with a stable breeding population of approximately 40 pairs. The province of Uppland is on the northern end the distribution range, where 4-8 pairs have regularly bred since the 1980s. In Sweden, the Montagu?s harrier is classified as an endangered (EN) species. This classification is partly due to a lack of preferred nesting habitat, such as shrub-lands or dense wetlands with Claudium spp.

The effectiveness of Phlebiopsis gigantea to prevent spore infections from Heterobasidionannosum and Heterobasidion parviporum on hybrid larch stumps were investigated in fivestands in southern Sweden. All sites are former forest land and the age of the trees wasbetween 9 and 13 years.The study was implemented in August 2010, a month where spore dispersal should be great.The five sites were located in previously un?thinned monocultures of hybrid larch. The sporeload in the air was studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed.