GE Healthcare operates in Uppsala (Sweden) and develops systems, equipments and medium to purify medical substances. Discussions with the local authority concerning planed far-reaching changes and upgrades of the biological process techniques for sewage management, aroused the question about revising the terms of permit for the activity. Therefore it seemed necessary to evaluate a newly installed biological process technique, which is the background of this thesis. The evaluated biological treatment process was built in 2003 and consists of a biological reactor filled with moving bed carriers with a high surface area for biological growth. At the time of the project the biological wastewater treatment plant consisted of a flow equalization facility and two following parallel biological processes; a biological reactor with moving bed carriers and a tower trickling filter.The aim of this thesis was to survey the function of the biological reactor with respect to the reduction of organic matter.

The ability of a dog to perform some kind of practical work, for example hunting or herding, depends among other things on its behavioural characteristics. In animal breeding it is not always easy though to select for behavioural traits. It may, for example, be difficult to identify traits that are not only heritable but also of importance for the dogs' ability to perform the practical work of interest. Moreover, it is often difficult to accomplish accurate measurements of behavioural traits. When selecting dogs for breeding, it is usually preferable to evaluate them using an objective and standardized bahavioural test, rather than results from field trials.

Aortic insufficiency is a very common valve problem in horses and most often affects older individuals, but nevertheless existent within younger ones. The root cause for aortic insufficiency can be varied, for example; endocarditis, ventricular septum defect or congenital valve disease but the most common are progressive valve degeneration or elite competition. Depending on the root cause, different changes can be observed on the aorta valves, but they do all have the same effect, the valves do not seal properly and blood leaks backwards. Many horses can, even with this deficiency, perform highly without any visible impacts and there is therefore no need to treat those subjects. Most often the symptoms arise at a later stage in life and they are, more often than none, put down for other reasons. In the occurrence of the clinical symptoms showing, treatment guideline is to inhibit these symptoms since the valve degeneration is presently irreversible.

The purpose of this thesis was to examine relevance of the proposition made by new insitutionalists about institutional and technical environment. This proposition originaly made by Meyer & Rowan (1977) has two core assumptions: The first is that all organizations are controlled by combinations of types of demands; technical demands for efficient production and institutional demands to adept to cultural and normative expectations. The second assumption is that there exists a few organizations dominated almost entirely by one typy of demand. Organizations dominated by institutional demands are said to live in an institutional environment, while technical organizations is said operate in a technical environment. This thesis has examined if these assumptions are still applicable in describing organizational interaction with the environment.

In this report, a case study of conditions for Swedish language development in children of immigrant origin is presented, and its results explored. The boundaries of the case study are defined as preschool pedagogues? facilitation of Swedish language development through co-learning, in children of immigrant origin in an ethnically segregated urban area. Concepts central to the report include dialogue, second language learning and perspectives on language difficulties. For the theoretical background of the report, a basic sociocultural theorem is used, which links language as well as other areas of development to verbal interaction in a social context.

The cooperation between university and industry life in the region of Gävle is always a topic of importance. University and High schools have various roles to fulfill: except administrating the training and supporting research they should also - as a third role - contribute to cooperation between organizations, business companies and other associations. In addition to that, they should support individuals by local as well as regional development. The purpose of our paper is to make a critical review of the cooperation between the University of Gävle (HiG) and industry life until today and the consequences in order to encourage students to stay in the Gävle region during and after their period of studies.Initial we started with a preliminary inquiry with a questionnaire as a base for students in three programs at the Department of Economy; the program for Bachelor of Science, the program for estate agent and another economy program with direction estate economy. From this preliminary inquiry we got the picture of the way the students looked at the problem.

The aim of this study has been to investigate students? understanding of fractions when they occur in the practical subject home economics. In order to investigate this, the learning study method was used. Learning study can be understood as a method to gain deeper understanding of what is learnt by students during a lesson to increase learning outcome.The variation theory framework has been utilized to analyze the results of this study. The object of learning was chosen to be addition of fractions bigger than one half when they appear in home economics.

In recent years it has become more and more evident that man has contributed to much of the climate changes that have taken place during the last century. A major challenge today is to reduce emissions and energy usage at the same time as the global population is growing. To contribute to a better environment, Stockholms Stad has set at target of becoming fossil fuel free by the year of 2050. The construction of new districts is done with this goal in mind; energy efficiency and renewable energy sources are examples of methods to achieve this.Solar energy is considered to be a sustainable energy source and the most common techniques to harvest solar energy in Sweden are solar cells and solar collectors which produce electricity and heat respectively. This report aims to investigate whether an investment in any of these systems would prove to be economically beneficial at Kvarnholmen, a district under construction in eastern Nacka, Stockholm.Since the finished blueprints only cover a small portion of Kvarnholmen, the report examines the possibilities for a house where construction has already begun, Nya Kvarnen.

The communist party Khmer Rouge took over the power in Cambodia in 1975, and ruled the country until the beginning of 1979. During these years they attempted to create a completely new society, a true Khmer nation, which involved massive economic and social reorganisation and elimination of people which did not fit in the new ideal.Three decades has passed since the genocide, and the senior leaders of the Khmer Rouge will now be tried in the Khmer Rouge tribunal, which consists of both Cambodian and international judges and prosecutors. The integrity of those tribunal representatives will be crucial for the integrity of the tribunal as a whole and thus also for the outcome of the processes. It is hard to determine whether the purposes for demand of accountability will be satisfied, it is though clear that there are many obstacles in the way for an unproblematic and fair procedure..

The aim of the study is to elucidate how teachers in middle school work with reading literature aloud and their attitudes to their working methods. The research questions concern how the teachers work before, during and after the reading aloud, and also the advantages the teachers find in their method and the obstacles they discover in the work of reading aloud. A qualitative method was used for the study, applying semi-structured interviews. The selection consists of two teachers who have worked in the profession for 23?24 years (Teachers Andersson and Bergström) and two who have worked as teachers for 3?4 years (Teachers Cederqvist and Davidsson).

Diet and lifestyle are closely interrelated and believed to have a significant influence on four major public diseases - cardiovascular disease, cancer, hypertension and obesity, but also affects functional deficiencies like gluten- and lactose intolerance. Health added-value foods are thought to reduce health-related risks or delay the onset of these major diseases. Therefore, interest among scientists, researchers and the public in general has been growing remarkably over the last decade regarding these special foods. The Swedish market seems to be a good target for health added-values food. However, as there are many risks and cost factors involved for companies to enter the market or invest in R&D, it is important to take a step back and analyze the current market situation.

AbstractThe purpose of this study has been to find out what attitude fifth graders have towards mathematics. This is done to get a better understanding of student?s feelings regarding about mathematics and what it is that makes mathematics fun or boring. My questions have been: What do the students think is fun, boring and difficult about mathematics? How do students think that a good mathematics teacher should be? Do the students see a difference in the mathematics teaching in easy compulsory school years?To find answers to my questions I have looked into prior research on students attitudes towards mathematics.

In the field of IT-forensics you may often get to analyze different types of digital devices. One ofthese devices is the GPS navigation system. Nowadays GPS technology is getting more and morepopular and is included more frequently in different types of devices. With this article we want topresent the differenent obstacles and possibilites that a forensic investigator is presented with in thistype of investigation. We will be comparing different software suites and make use of forensic toolssuch as EnCase.The reader should get some understanding of the methods there are for analyzing one of these devicesand what problems that may occur in the investigation process.The article presents how the investigator can use different methods to gain information such as recentroutes, favourite destinations and other information that may be stored on the device.

This study examines the effects of a person's appearence on grading. 80 teachers in Swedish have assessed a text, illustrated with a picture of the supposed author. The pictures were varied by attractiveness, personality in looks, and gender. Furthermore, a text illustrated by a drawing and an unillustrated text were also used in the study. The texts were sent to the teachers by e-mail and assessed on a scale from 1-10 and the Swedish grading scale IG-MVG (Did not pass ? Passed ? Passed with credit - Passed with great credit).

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.