Sötvattensmusslor har en viktig roll i akvatiska ekosystem och de anses vara en av de mest sårbara och hotade organismgrupperna i sötvatten. Sverige har nio arter stormusslor, varav fyra är upptagna på den svenska rödlistan. Flest studier har gjorts på flodpärlmusslor (Margaritifera margaritifera) och hoten som den står inför. Undersökningar av de vanligare förekommande arterna i Västra Götalands län, har visat att även allmän dammussla (Anodonta anatina) och spetsig målarmussla (Unio tumidus) har problem med livskraftiga bestånd och föryngring. Stormusslor anses vara som mest sårbara när de som juvenila ligger nedgrävda i sedimenten.Den här studien har mätt kvaliteten av sedimenten i tolv mussellokaler i Västra Götalands län.

ABSTRACTThe aim of this study was to describe various methods of treatment and effects of treatment of ADHD, and to investigate wheater there is an association between adults with ADHD and obesity. Method:  Literature review. Twelve quantitative scientific articles were found in the data bases PubMed, Cinahl and MedLine.  Result: ADHD is a cognitive impairment that can lead to serious complications such as obesity. Studies show that drug treatments of adults with ADHD have positive effects in terms of reduced symptoms, increased efficiency and improved quality of life, but drugs can also cause side effects in form of loss of appetite and insomnia. For adults with ADHD and obesity drugs that affect metabolism have a significant impact on patients ability to lose weight.

Bakgrund: Audiologisk rehabilitering definieras som interventioner i form av instruktion, counseling, hörapparatutprovning och kommunikationsträning vilka används för att minska hörselnedsättningens påverkan på individens funktion, aktivitet, medverkan och livskvalitet. Audiologisk rehabilitering kan utföras såväl individuellt som i grupp. Grupprehabilitering kan vara kostnadseffektivt. Frågan är om audiologisk grupprehabilitering har några positiva effekter och om detta format kan anses likvärdigt med individuell rehabilitering. Syfte: Syftet med studien är att beskriva audiologisk grupprehabilitering och dess eventuella effekter.

ABSTRACT Tobacco Rattle Virus (TRV) is a soilborne plant virus. It is an important pathogen in potatoes where it causes spraing disease. This disease can lead to significant economical loss for the farmer, so it is imperative to get the proper diagnose before planting. TRV is spread naturally by free-living nematodes (Trichodorus and Paratrichodorus). Transference of TRV to a plant occurs when the virus-carrying nematodes feed on plant roots. The relationship between virus, nematodes and plants is complicated, and has to these days not been fully characterized. The diagnostic methods available today do not work sufficiently.

Protecting the environment has with time grown to take a more central role in the society. Agriculture plays an important role in the society since this sector produces our food. More thorough research on how agriculture affects the environment is therefore motivated. This research can be used to improve the agricultural practice from an environmental point of view. This is something that both the farmers and the consumers can profit from. This study aims to form the basis for creating environmental indicators for use of nitrogen and energy on dairy farms. Twenty-three farmers in western Sweden have been interviewed about their farms, both organic and conventional. They produce milk with different intensity, defined as the amount of milk delivered (sold) per hectare of arable land.

The aim of this study was to describe the prevalence of gingivitis, periodontitis and dental caries in individuals with type 2 ? diabetes. The study was conducted in a form of a general literature review with the restricted to the following conditions: human studies, English, and articles published between 2007 - 2012. Articles lacking a control group were excluded. The data were collected through searches of the medical database PubMed. A compilation of 11 scientific articles was examined.

The value of a company's employees is considered to be higher and more important for a business success than ever. Losing employees is not only a loss of valuable knowledge, it also implies a significant cost related to the recruitment of new employees. To attract potential personnel, it is important for the companies to understand how to communicate with talents. Choosing a communication medium for a job advertisement is not easy when new options constantly arise. Despite the development of new communication mediums and channels, such as social mediums, the traditional communication medias still remain available.

The aim of the analysis in this essay will be divided into two cases. In the first, I will study the formation of a new State and why a geographic area of a country decides to make an secession. The focus will be on the secession of Biafra from Nigeria in 1967 and how the causes and explanations behind this secession, get in the Swedish literature as well as the international literature. In Case 2, I will use a explanation games, as a means to give pupils more understanding and to make it more clear, why a geographical area chooses to make a secession, and where I will use the secession of the Biafra from Nigeria as my example (Case 1). To more easily understand and answer  the question, why the geographical area of Biafra in south-eastern Nigeria chose to do an secession, I have chosen to study my Case 1 from a social and political context.

The purpose of this qualitative study has been; how social bonds are interlaced between the social worlds contained within the analytical division of ?outside Internet? and ?within Internet?. What happens with the social bond as the individual oscillate between this analytic bisection? This purpose raises important questions of the use of Internet in everyday life.A new stance is taken toward studying the Internets integration into everyday life. The focus is adjusted to the importance of emotions.

According to Nosti (2012) banks target youths to find new customers by giving them special offers such as debit cards from a relatively early age. However, Moschis and Churchill (1979) point out that age can affect the level of knowledge in the consumer. Therefore, this essay focuses on youths as consumers. Specifically, youths? awareness of security risks in using bank tools such as debit cards or internet banks was studied.

The report is the result of a master thesis at ENEA AB during the fall of 2009. Itaims to create a specification of flash memory management system which focuseson power efficiency and low RAM usage for embedded systems, and to design andimplement a prototype of such a system to facilitate further development toward thecreated specification. The system used by ENEA today is a Flash Translation Layer(FTL). It has a complex structure which prohibits modifications and customization,therefore a new flash memory management system needs to be developed.The suggested solution uses a translation layer called Metadata FTL (MFTL), wherefile system metadata and userdata are separated from each other in order to improveperformance. The partition holding userdata uses a block-level mapped translationlayer system called Fully Associative Sector Translation FTL.

Crisis communication can make a crisis turn into a double crisis. The purpose of the thesis is to analyze by which rhetorical means a double crisis can occur. With the Swedish zoo Parken Zoo as a specific example, this essay examines the crisis communication during the crises that started with the tv-show Kalla fakta. The tv-show revealed that Parken Zoo killed and slaughtered endangered and sacred animals. When asked about the specific animals, the head of the zoo gave different answers ? which contrasted with former employees testimony.

Around the world, forests are generally being fragmented and as plant populations decline in both sizeand number of individuals, the genetic variation will also decrease whitch in the end leads to totalextinction of the plant. In this paper, I wanted to investigate what specific species of trees and shrubsyou usually find in the edge and core habitats in some of the forests in the Baltic Sea region. I alsowanted to identify the edge effects and their sources and finally compare the results between thedifferent regions.The data sources used are derived from the ongoining research project Landscape structures, patterns ofbiodiversity and conservation strategies in the Baltic Sea region by Kari Lehtilä, Patrik Dinnétz ochTiina Vinter who have made a record of all herbaceous plant species in four randomly chosen forestregions situated around the Baltic Sea: Estonia, Skåne, Södermanland and Germany. I made statisticalanalyses, using the computer program R, concerning the distribution of species in the edge habitats ofthe forests as well as in the core habitats. I performed generalized linear models and then variationanalyses with the factors light and biomass in order to investigate wether edge effects might appear dueto these factors.

 With the increases in fuel costs due to the depletion of the world oil reserves and the increase of greenhouse gasses as a consequence to using oil as a fuel many companies are looking to new and innovative ways to power their aircraft. One of these new ways to power an aircraft is using fuel cells powered using hydrogen and oxygen, thus producing nothing but water vapour and small amounts of nitrogen dioxide as well as trace amounts of other emissions. Both Boeing (1) and Politecnico di Torino (2) have shown that it is possible to build an all-electric aircraft powered by fuel cells. Both flights used small, two-seater aircraft and a constant between them was the loss of the co-pilot seat due to weight and lack of space. As this paper will deal with a commercial aircraft a primary concern is the cargo and passenger capacity and whatever impact switching propulsion system has on these.

ABSTRACTThe aim of this study was to describe various methods of treatment and effects of treatment of ADHD, and to investigate wheater there is an association between adults with ADHD and obesity. Method:  Literature review. Twelve quantitative scientific articles were found in the data bases PubMed, Cinahl and MedLine.  Result: ADHD is a cognitive impairment that can lead to serious complications such as obesity. Studies show that drug treatments of adults with ADHD have positive effects in terms of reduced symptoms, increased efficiency and improved quality of life, but drugs can also cause side effects in form of loss of appetite and insomnia. For adults with ADHD and obesity drugs that affect metabolism have a significant impact on patients ability to lose weight.