The production of ferrochromium alloys at Vargön Alloys AB contributes to formation of unwanted ferrochromium dust, which contains toxic Cr(VI). The dust is since summer 2005 treated with an iron-sulphate solution to reduce Cr(VI) to the non-toxic Cr(III). A year later the treatment technique was improved and disposal occurs in cells on the landfill. The cells can be up to 300 m3 and the edges can be made out of fro example concrete. Tests are conducted on the treated dust when it is disposed.

This study was made for the Swedish forest company Sveaskog because the sawmills they delivered timber to had noticed a high frequency of bucking splits in their products. Coworker Jim Edström at Sveaskog also wanted to know if there was a big difference between different felling heads. The purpose with this study has been to find out the amount of bucking splits and if there is any felling head brand that did a bigger damage that the others. The study was made in two steps, where the first part was a literary review to find out results and conclusions in earlier studies. The best measuring method to check bucking splits was the known ?trissmetoden?.

This project was aimed to study the degradation of polystyrene-butadiene-styrene block copolymer (SBS). SBS is used to modify bitumen, the binder in asphalt. From earlier studies it is known that SBS degrades in bitumen, but the degradation products have not been identified. To be able to determine the long term effects of SBS in the environment, degradation products need to be identified. Polystyrene forms rigid blocks with polybutadiene as a rubbery matrix between the ridgid blocks.

The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.

The purpose of this study is to illustrate teacher humor by critically examining it from an interpersonal- and humor communicative-perspective; and to discuss teacher interpersonal humor communication-skills in relation to the Swedish high school curriculum, collegial relationships and pedagogical aspects. The study?s empiric material consists of semi-structured interviews with six high school-teachers currently working at the same school, but of different age and gender. The interviews indicate that the informants all have developed humor competence, an interpersonal communicative-skill that allows them to use humor efficiently. Moreover, the result demonstrates that the teachers have various humor approaches but that they all use humor in the classroom for much of the same reasons.

This study aims to explore how a gardening project with elderly living in Djuröhemmet, a nursing home outside Stockholm, affected them regarding psychological well-being and their experience of participation during the planning and construction of the memory garden. The gardening project is new in its kind by allowing the residents to influence the design of the garden by sharing the project leader their gardening memories from previous parts of their life and by wishing for specific plants and items.  The method being used was qualitative interviews where we interviewed seven people living in Djuröhemmet who participated in all or parts of the project. The theoretical framework is Molins (2004) definition of participation, but also theories of meaningfulness, social needs and gerotranscendence were applied. The results indicate that the participants did not realize that their involvement during the planning helped developed the garden.

AbstractFor an audit organization, it is important to work toward maintaininga high error climate to handle errors in an efficient and propermanner. This means that it is important for accountants to worktowards high quality of work, reduce and manage errors that mayoccur in their daily work. Therefore, auditors must know how tohandle errors in order to improve efficiency, which can be affected byhow leadership is exercised in the workplace. The error climatemeans being able to act in a manner which will ensure a good jobtowards customers but also within the internal operations.The ethical leadership may thus have an impact on how auditorshandle the error environment both internally and externally. It is veryimportant for customers to have confidence in the business but also tomaintain the order and the general rules of society for accountingfirms.My study aims to show the thinkable relationship between ethicalleadership and the error climate.

In recent years the concern about the future of the European Union and itssupposed lack of democracy, efficiency and legitimacy has increased. Thisconcern has resulted in extensive debates and the establishment of a conventionwith the task to create a draft treaty for a European Constitution.The aim of this essay is to study how the three theoretical concepts,democracy, efficiency and legitimacy, have been described and used in the debateabout the future of the European Union. My main interest is to see how theseconcepts are described in a debate regarding a political system that goes beyondthe borders of the nation-state. I have made a comparative textual analysis of thedebates taken place in Sweden and Spain during a period of over two years. Ihave, for instance, found out that openness and clearness have a prominentposition as democratic values together with equality and justice (in Spain) and theinstitution of accountability (in Sweden).

Heifer?s growth may be divided into three main phases: calf period, puberty and pregnancy. When the heifers are about three months old a critical period begins. This period ends when the heifer reach puberty and have her first oestrus at around 9-12 months of age. In the critical period the mammary gland starts to grow at a fast rate and Insulin-like growth factor-1 (IGF-1) transport the growth signals to the mammary glands.

The aim of this study is to analyze how problems are represented within SOU 2008:27. Further more, the aim is to analyze how the new subject plan for history can bee seen as a product of this document. The method used, and the theoretical frame of the study, is based on Carol Lee Bacchi?s ?what´s the problem represented to be?? approach, which basic principle is that policies are filled with representations of problems and that these representations need to be examined. These problem representations are then themselves subject for scrutiny, the second step being an analysis of the texts presumptions and assumptions concerning view of man and perception of knowledge. The results show, among other things, that a problem representations can be found in the SOU; the school system is too vague and unclear.

Alternative splicing is a process that partly rejects the common definition of a gene ? that one gene codes for one specific protein. By variable combination of coding regions (exons) and exclusion of non-coding regions (introns), formation of several different mRNA-transcripts, and consequently several different proteins, can derive from the same gene. Alternative splicing is an important condition for the development of complex life forms, but it is also a highly sensitive process and inaccurate splicing is the cause of approximately 15 % of mutations that cause genetic diseases. This article presents four genes, BRCA1, BRCA2, ER? and ER?, and inaccurate splicing of these genes increases the risk of developing cancer, particularly breast cancer and ovarian cancer.

This survey aims to investigate and analyze how six teachers on a high school in Stockholm reflect on pedagogical aspects of problem based learning( PBL). The survey focuses on ana-lyzing how the teachers relate to the benefits and problems of PBL and how they reflect on the students development. The survey was conducted on a high school and the method used for the study was interviews, each taking 30-45 minutes. The outcome of the survey indicates that the teachers sees problem based learning as an alternative to what they define as tradi-tional education regarding its epistemology. They indicate that PBL allows the students to define their own questions, to be carriers of knowledge and to evolve analytic skills in relation to the basegroup.

Vi har utfört en kvalitativ studie vars syfte är att belysa vad känslan av hem och hem som fysisk plats har för betydelse för personer som är eller har varit bostadslösa. Vi har utfört sju intervjuer med individer som passar den beskrivningen. Vår utgångspunkt har varit Nattcaféet i Halmstad som Svenska kyrkan driver för att hjälpa och ge stöd åt personer som på olika sätt är i behov av det. Det kan vara bostadslösa personer som t.ex. behöver kläder, men det kan även vara personer som är ensamma som kommer dit för att de uppskattar sällskapet.Frågeställningen vi syftade att besvara: Vilken emotionell och praktisk betydelse har känslan av hem och hemmet som fysisk plats för bostadslösa och f.d.

Communicative recycling, to repeat utterances uttered by oneself or others, is a common phenomenon in all societies and languages. The talk of persons with autism often features recycling. The aim of this study was to identify different forms of recycling in communication involving a boy with autism and to describe its functions. Communication between the boy with autism, who used Picture Exchange Communication System (PECS) to communicate, and his parents and teachers was videotaped. The conversations took place in familiar settings, in the boy?s home and at his pre-school.

Background: Chemotherapy and radiation resistance are major causes of failure in cancer treatment. The response to treatment in cancer cells depends on several mechanisms and pathways such as Janus kinases-signal transducers and activators of transcription JAK/STAT pathway. STAT1 was the first described transcription factor in the STAT family. STAT1 is activated by stimulation of signaling proteins such as type II interferon (IFN- ?) and the activated STAT1 translocates from cytoplasm to nucleus.