In Sweden there is a long ongoing discussion about computer and cellphone usage during lectures in school. The discussion has mainly covered elementary school up to college students, but this topic is at least as relevant for university students. Today cellphones are so advanced; you can do everything with one that you previously only could do with a computer, the difference is that everyone is carrying one with them all the time. This study shows how concentration during lectures is affected by the cellphone accessibility and usage. With this study we want to find out how university students perceive cellphone usage affects their own concentration during lectures.

The purpose of this essay is to raise and discuss children?s problems with concentration in two areas, stress and Adhd, where the symptoms are similar to each other. During recent years I have experienced how "difficult" children increasingly have been diagnosed and "stamped" with various combinations of letters. Because of my own children?s diagnoses, this has raised my interest in studying children´s modes of expression and behavior, and I have come to question whether many children who receive a diagnosis of Adhd really are afflicted by it.

There is a strong debate in the media about the CEO compensation in the listed companies and whether they deserve their high rewards. Many previous studies have shown differences in the reward system depending on the ownership structure, mostly testing for only ownership concentration or ownership category. This study aims to investigate how the influence of the owners affects the CEO reward system, testing for both the level and the structure of the reward. The sample used in the investigation is Swedish listed corporations and consists of 251 observations. A survey was also conducted but due to low response rate and because the answers are not representative for the whole sample the survey will only be used as an illustration.

The study is made on behalf of SCA Skog Jämtlands förvaltning which is one of five administration units that SCA Skog consists of. The purpose of the study is to investigate which reduced expenses there are according to spatial concentration of cutting areas. By increasing the spatial concentration of cutting areas it will reduce the need of movements by trailer, also reduce the number of roads that you use during the activities. To be able to perform the study, access to a annual cuttings in nine years have been made available. From this volume new annual cuttings has been created but more concentrated. The two different results have been compared and the results show that concentration of cutting areas generates reduced need for trailer transports and less km road that has to be maintained. But then, if it´s practical viable can be discussed.

Toxic metals contaminate soil worldwide and thus serve as sever environmental threat. Therefore the purposes of this study were to investigate in which soil fractions that different heavy metals (Fe, As, Cu, Zn and Pb) could be found in contaminated soils and if it is possible to use sieving as a method for decontamination. Soil samples were collected from three different locations, the Nasa silver mine, the Blaiken-mine and Svalget environmental station. The samples were oven dried and later on sieved into six different fractions 8mm, 4 mm, 0.5 mm, 0.250mm, 0.063 mm and <0.063 mm. The fractions 4 mm, 0.5 mm and <0.063 mm from each location were analyzed in an x-ray fluorescence detector.

Active ownership is widely regarded as positive for the development and performance of businesses. In this paper, we investigate the impact of ownership concentration and owner identity on return on equity (ROE) in Swedish companies between 1986 and 2008, and show that active ownership might suffer from opposing effects. We find evidence, albeit weak, that ownership concentration has a positive effect on profitability, but that it levels off at high levels of ownership shares. Furthermore, we propose that family ownership has a negative effect on profitability. Our results are dependent of choice of statistical method, but show nonetheless a need to reevaluate what seems to be a universally positive view of active ownership..

AbstractMy purpose with this study is to find out if it helps children who have diffuculties with their concentration if they get to practise their motor behaviour knowledge during their day at the school to promote their learning capacity. My purpose is also to find out how schools works with motor behaviour training. To get answers to my questions have I done interviews with four educationalists and I have also used books and internet sites. Motor behaviour is of importance to how children learn things in the school, without a well working motor children gets difficulties to sit still and to concentrate. The children may put their energy at the wrong things in the classroom, when the energy instead should be need to learning things.

One key factor in silviculture today is sustainability. In order to achieve sustainability it may be important to restore lost nutrients to the forest after clearcutting. In order to calculate the removal, you need to know how much of different elements you will find in different tree compartments. The aim of this study was to investigate if the concentration of elements in different tree compartments of spruce (Picea abies (L.) Karst) were related to the moisture conditions of the site. Five plots at Risfallet (60º 21´ N, 16º 13´ E), was placed along a moisture gradient in a 40- year spruce stand.

This is an essay concerning the density of the city. An increasing amount of today?s cities have a shortage of space available for the erection of new buildings and settlements, especially in areas close to the city-centre. New buildings and settlements are therefore often found in the outskirts of the city, resulting in long distances between work and living for many people. These long distances are a waste of limited resources and are inconsistent with the vision of the sustainable city.The challenge for the future is to insert new buildings and settlements in the existing city-structure and in this way reduce the distances between different city-functions.The density of the city can be increased in two different ways; by inserting new buildings between existing ones or by extension existing buildings, for example by an additional floor.

A system for sampling of alcohol and aldehyde from diluted exhaust gases from vehicles powered by ethanol has been developed and tested. The major part of the work has been research of earlier work in the field and the construction of the sampling system.The part of the system constructed for the measurement of alcohol has been shown to work, however, more test should be performed. The part of the system constructed for the measurement of aldehyde was tested parallel to a commercially available system, based on the same principle of measurement, and has been shown to work well.Determination of the concentration of gaseous ethanol using a FID has shown the since earlier known fact that a FID is not able to measure a correct concentration of ethanol. Furthermore it has been shown that high concentrations of gaseous ethanol can not be kept in a bag more than a few minutes without a substantial decrease of the measured concentration..

The purpose of this investigation was to investigate how being outdoors and participating in physical activities affect the concentration in a collection situation among children.The methods I chose were observation of two groups of children two times each and interviews with four educators.The results showed that the concentration in the collected situation depends on past activity, where it has taken place and that the environment has an impact. If the previous activity been more active and physical the subsequent collected situation is calmer and the children more concentrate. The facts that the children have been outside in an inspiring environment that encourage playing and movement also have a position impact on the child´s ability to concentrate. The collected situation is an important moment in the preschool day when the kids need to congregate and get a chance for social interaction and a sense of togetherness with all the children and teachers. The conclusion is that there is a relationship between movement, physical activity and an increased concentration.

The purpose with this study was to see the relation between gymnastic pause and concentration to find out the students in a first grade experiences and thoughts about gymnastic pauses in the classroom. I have made a qualitative study to fulfill my purpose, I have observed students before and after the gymnastic pauses, carried through gymnastic pauses with the pupils and interviewed pupils in group.Previous research shows that the good working atmosphere and concentration has improved when pupils have had gymnastic pauses but it is difficult to say how it looks in the long term when the research doesn?t show that.In my study, it appears that the gymnastic pauses make it calmer in the classroom. Some of the pupils believe that they have had a better ability to concentrate after the gymnastic pauses while some pupils believe that they have not had a better ability to concentrate. Some pupils say it's good to get a break to carry on with the schoolwork during the entire lesson.

The purpose of this study is to find out, explore and see how children with neuropsychiatric problems like ADHD/DAMP are portrayed and treated in five fictional children?s books written by writers who all are related to ADHD issues, except for one writer.I have done a text analysis performed on five children?s books which can be found in libraries in most of the libraries in Sweden. The analysis shows varying results between the five books followed by a general conclusion about how children with Concentration problems are being presented in these chosen children's literature. The main problematic of this study is to examine how these characters are being represented and treated within the scopes of school, family relations and how ADHD/DAMP symptoms are portrayed. This study focuses on analysing how the actual ADHD/DAMP behaviour is being reflected and better understanding for the reader to understand the symptoms of ADHD.Another fact is what kind of relations these children with neuropsychiatric dysfunctions are portrayed when facing with other persons, such as family and friends and how ADHD/DAMP is affecting them daily basis.

ABSTRACT Behavioural problems are a compound conception for emotional difficulties at different levels. Individuals with behavioural problems could have difficulties with social relations, low self-esteem, anxiety and worry. The purpose with the examination was to describe how clients apprehend their behavioural problems and what they consider could be the causes of it. The examination was based on the qualitative interviews with 5 clients and a professional helper. We came in contact with our clients through our practice.

The purpose with this study was to see the relation between gymnastic pause and concentration to find out the students in a first grade experiences and thoughts about gymnastic pauses in the classroom. I have made a qualitative study to fulfill my purpose, I have observed students before and after the gymnastic pauses, carried through gymnastic pauses with the pupils and interviewed pupils in group.Previous research shows that the good working atmosphere and concentration has improved when pupils have had gymnastic pauses but it is difficult to say how it looks in the long term when the research doesn?t show that.In my study, it appears that the gymnastic pauses make it calmer in the classroom. Some of the pupils believe that they have had a better ability to concentrate after the gymnastic pauses while some pupils believe that they have not had a better ability to concentrate. Some pupils say it's good to get a break to carry on with the schoolwork during the entire lesson.