The purpose has been to investigate leisure-time centers actual work on children with attention deficit disorder. In addition, the study strives to make leisure-time centers way of working, in relation to their assignments, visible. The study has also compared how the leisure-time centers work and what the research says. The survey was conducted with the help of three exploratory interviews with pedagogues and three-piece observations at the leisure-time centers. It was carried out at three different schools in two counties in Sweden.The results of the survey show that the schools are trying to create clear procedures, though the centers succeed with this in varied degrees.

Burnt alun shale and lime is the residual product that was formed when alun shale was used as fuel to convert limestone to quick lime. The material contains arsenic, vanadium, molybdenum, cadmium, nickel, lead, and uranium among other elements. The aim of this paper is to examine the uptake of trace elements in vegetables grown on burnt alun shale and lime to determine whether or not the surrounding environment and humans are exposed to these elements by eating plant products. A cultivation trial was carried out where onion, carrot, and lettuce were grown on three mounds of burnt alun shale and lime in the Falköping area in Sweden. The treatments were burnt alun shale and lime mixed with peat, only burnt alun shale and lime, and a reference soil. The reference plots were natural soil mixed with peat adjacent to the mounds.

A shorter dry period length has in studies abroad showed some positive effects among high yielding dairy cows. Among other things it has been suggested that the periparturient metabolic stress becomes lower, that the fertility is improved and dry off becomes gentler for the udder, due to a lower milk yield. The milk yield is generally reduced during the first period after calving, especially among primiparous cows. The aim of this master thesis was to investigate how Swedish cows were affected by a shortened dry period, regarding milk yield, metabolism, health, body condition and body weight from two months before calving to some weeks after calving. Also plasma concentration of lactose during the period before calving was determined.

The aim of this study is to analyse and investigate a rather new field of LIS studies, i.e. link analysis which is a part of webometrics. Webometrics has been described as the quantitative study of web based phenomena drawing on bibliometric or informetric methods. Link analysis has its counterpart in citation analysis within the field of bibliometrics. The questions the study investigates are if webometrics can provide LIS with new knowledge and if there is a place for webometric studies in LIS research.

The main purpose of this study was to collect norm data for thegrammatical receptive language test Test for Reception of Grammar - Version 2(TROG-2), from 144 Swedish children, aged 8:0-9:11 years. Another aim was toinvestigate whether a change in the order of the blocks was needed in the Swedishversion of TROG-2 to keep an increasing level of difficulty. Other aims included toinvestigate the relationship between receptive grammar and word decoding, andbetween parents ratings of their children?s language comprehension and readingabilities and the children?s results on the TROG-2 and a word decoding test. Theresults showed that the order of the blocks needs to be changed and that there wasno significant relationship between language comprehension and word decoding.Parents were better at rating their children?s reading than language comprehension..

Increasing attention is being given to acid sulphate soils wherever they occur. The problems that leaching sulphate soils gives with significant lowerings of pH and mobilization of heavy metals influence large spectra of our society from fisheries to agriculture to construction. Mapping these soils is consequently of great importance and the methods of doing this is very much lacking in function and precision. This study was therefore carried out to investigate whether conductivity in running water can be used as a simple instrument to identify acid sulphate soils in the catchment. 31 coastal streams in the county of Västerbotten were analyzed for different catchment properties such as occurence of marine sediments and basic water chemistry including conductivity and sulphate.

Freshwater ecosystems have long been neglected as an important part of the global carbon cycle. However, research shows that most of the world?s lakes are net-heterotrophic and consequently emitters of greenhouse gases to the atmosphere. In many boreal and north-temperate lakes, most of the yearly emissions usually occur in spring, shortly after ice-thaw. The aim of this study was to quantify the flux of carbon dioxide (CO2) and methane (CH4) in three boreal lakes, during this annual event.

Nanofiltration is a proper way of preparation of drinking water. The process has a lot in common with reverse osmosis where a semipermeable membrane is used to separate a pure water flow from the remaining water. A pilot plant was used to ensure that nanofiltration is a suitable technology for a specific waterworks station in Glemmingebro, Ystad. The purpose was also to find out if a pH-adjustment is needed for feed water in a possible full scale plant.  In this case nanofiltration is used mainly to remove sulphate and calcium since the raw water contains concentrations of these substances which exceed the limits for potable water. It is important to receive a high recovery (RC), otherwise the deliviery of water won?t be high enough.

Obese horses with insulin resistance are often also afflicted with laminitis. Horses with these symptoms are given the diagnosis equine metabolic syndrome (EMS). Signs of insulin resistance are excessive accumulation of adipose tissue on the neck, around the withers and on the dorsal area of the hindquarters. Insulin resistance means that the function of insulin is defective and does not stimulate glucose uptake by the cells in the body in the correct way. This will result in an increased insulin release.

The company Somas, Säffle, has assigned Fredrik Kjellin the project of finding out how ?KVTF DN250?, one of their own valves, reacts on cutting forces under production. They wish to know if and then how much it?s possible to minimize the wall thickness of the valve with neither plastic nor to big elastic deformations caused by processing.The most critical processes have been identified as rough lathing. The study has shown that the marginal for a wall thickness of two millimeters, to fall short of the yield stress in the most critical process, is good.

The purpose of this essay is to describe and partly explain the migration from a German city, and to illustrate the political difficulty surrounded by the phenomenon.I?ve composed following question issues to fulfill the purpose of the study:1.How does the migration take form in Cottbus?2.Why do the students want to migrate?3. Do the politicians consider the migration as a problem? What kind of measures do they want to introduce to prevent it?The survey has been done with mainly qualitative research methods, but it contains some quantitative elements.I?ve made an opinion poll survey among students in Cottbus, interviews with politicians at the city council and interviews with four students that have already left the city.The results of the study show that the will to migrate is widespread by the students in Cottbus. It?s first and foremost the chance to get a job that drives the students to migrate.The city has a deficit of 180 million Euros in household, which makes the politicians to feel helpless, facing the problem of migration.

Feline infectious peritonitis (FIP) is a feline viral disease with high mortality. There is no cure or any effective vaccine available today. Many questions are yet to be answered about this disease and the immune response in affected cats. The aim of the study is to evaluate two different techniques for the study of cytokine profiles in cats vaccinated with a vaccine concept against FIPV. More information about the immune response in these cats could give valuable information to better understand the pathogenesis of the disease and the development of an effective vaccine.

AbstractThis degree project focuses on the questions how teachers´ within the four socially oriented subjects? history, geography, religion and social science use the textbook, and their attitudes towards textbooks. The method used in this project was interviews with teachers. Previous research shows that teachers use the textbook to a great extent. Studies also show that teachers? way of educating depends upon their individual educational attitudes.

The aim of the present study is to describe the experiences of high school students as regards the effects of their activities, in and out of lessons, being published on the web. In addition, a further purpose is to acquire knowledge about whether a website could be used as means of increasing the students level of attention, and focus, to their activities in school; and, furthermore, how such a website should be designed to correspond with the students requests.The implemented methods are interviews with students, school administrators and teachers. A survey was conducted covering the student?s personal experiences and opinions. Furthermore, an interface test of the website was performed.

The Swedish curriculum points out mathematical communication as one of the importantabilities that students need to develop. Previous studies show that students have not been given the right conditions to develop this ability sufficiently. The purpose of this study is to investigate how some Swedish teachers interpret mathematical communication and how the work with this takes place in their classrooms.The investigation consists of qualitative interviews with six teachers in the grades of Fk-3. The interviews have been focused around the teacher's interpretation regarding mathematical communication, how this is reflected in their work in the classroom and also if they see any advantages or difficulties in working with mathematical communication with their pupils.The result of the study shows that the teachers are well aware of the importance of communication and they have a will and an intention to let the pupils communicate mathematically. Mathematical communication is emphasized mainly as important for the pupil's learning and understanding.