Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

Burkina Faso as well as most sub-Saharan African countries struggle with providing food for a fast growing population. The dominating farming system is agroforestry parklands. Agroforestry parklands can broadly be defined as areas where scattered trees occur on farmlands as a result of selective clearing. The presence of trees in crop fields may in the long term have a positive effect on the production of annual crops. It is commonly discussed, but not proven, that the presence of trees leads to increased groundwater recharge due to higher infiltration capacity of the soil.

This thesis has been focused around the Diels Alder reaction with the goal to design an enzyme catalyzed reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating reaction barriers or even reaction energies for the Diels Alder reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.

Demands on businesses are constantly increasing and the competition in the market-place is becoming ever tougher. To gain the long-term confidence of customers, not only the best businesses, but also the best supply chains are required.Volvo Cars is experiencing a changing competitive situation and their retailers are having trouble stocking the right spare parts. Shorter product life cycles and the growth of Volvo?s product program result in an increase in the number of spare parts to be stocked. In order to adapt to market trends and meet customer demands, Volvo has developed the LDC model, establishing a number of regional warehouses in strategic locations in Sweden, de-signed to supply spare parts to the regions? retailers through so-called Vendor-Managed In-ventory (VMI).The purpose of the study is to examine Volvo personbilar Sverige?s (VPS) motivation for a modified customer-service strategy through LDC.

This study is a survey concerning learning on equal terms. The purpose of the survey is to get a look into how teachers of today integrate students to obtain an individually adapt education. A good education is where every single student can evolve from an individual level and how education is adapted to let high-achieving students keep their motivation and thus develop from their own level of knowledge.Data has been collected through a qualitative method using semi-structured interviews. In the result the answers of the interviews are presented and it shows that teachers turn their focus towards low-achieving students. Low-achieving students are more in need of support to reach the required amount of knowledge, but that the high-achieving students must not be forgotten by the teachers. .

My work has resulted in an interactive search engine for plants that can be found at www.plantit.se. In the work process I have searched for which search criteria is most important when doing searches on woodland plants. I have done this by an analysis of existing databases and with an survey where leading plant expertise answered questions about woodland plants. I analyzed three search pages that are on the internet today Havenet.dk, Backyardgardener.com and Den virtuella floran. I concluded that there are several flaws but also many positive aspects that I have used when developing the interface of my page. The survey resulted in the basis for my search criteria the answers listed the most important factors when planting woodland plants. From this information I developed a system with five values on every criteria.

Studiens syfte var att undersöka hur grupper inom en industri skiljer sig från andra typer av arbetsgrupper från en större population. I den här studien användes Team Diagnostic Survey (TDS). TDS instrumentet används för att mäta faktorer som anses vara avgörande för gruppens effektivitet enligt en modell av Hackman (2002). Den statistiska bearbetningen visade på 12 signifikanta skillnader. Skillnader visade sig inom följande områden: compelling direction, enabling direction, supportive organizational context och available coaching.

In this diploma work we present the results from a study of how adult immigrants utilise the services provided by the public library in Biskopsgården, Gothenburg. A survey encompassing 51 library visitors of foreign origin and an interview with two librarians at the library were performed.The results from the survey show that the majority of the informants were male students inages from 26 to 45 years and that they had been living in Sweden for a maximum of five years. 73% of the informants used the library to borrow literature in Swedish, 53% to read newspapers and periodicals in their native language, 43% to borrow literature in their native language and 43% to read newspapers and periodicals in Swedish.These results were compared with two other related studies with which partial correspondencewas found. In addition, related topics such as multicultural librarianship and the psychological aspects of immigration are discussed..

The purpose of this research is to survey and describe some science teachers? conceptions of which assessment criteria they use at the marking process. Questions which are relevant for this research are the following: 1. Which assessment methods form the basis for science teachers? marking process? 2.

Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

The purpose of this qualitative study is to investigate how some teachers make use of the results of the national tests in mathematics to plan their teaching. The questions are how they plan their teaching in mathematics and if they use the results of the national tests to compare with their own teaching.   Five teachers in mathematics has been interviewed. I have used unstructured interviews with open-ended questions, and I have been able to ask follow-up questions based on their answers. The analysis of the survey is made from a systems theory approach.  The result of the survey shows that teachers make use of student performance to look at their own teaching of the current group of students. However, there is not enough time to rehearse and repair the deficiencies discovered in the national tests, which for some is perceived as a stress factor.

Uppsatsen är en jämförande kvantitativ pilotstudie om och hur Ungerns politiska kultur och postmaterialistiska värderingar har förändrats sedan staten blev medlem i EU.Syftet är att se om det har skett några förändringar i den politiska kulturen och om EU har varit en bidragande faktor för förändringen. Primärkällor jag har använt mig av är World Values Survey och European Social Survey, och sekundärkällor är sådana källor som har definierat politisk kultur, och förklarat hur EU fungerar. Resultatet jag har kommit fram till är att den politiska kulturen inte har förändrats i stor grad men det har skett förändringar i några värderingar som leder till postmodernismen. Medlemskapet i EU kan vara en faktor till att förändringarna har skett, men det är inte enbart det som har påverkat..

The aim of this thesis was to investigate the methods used by teachers and childrens' libra­rians concerning their work with fiction at the junior school level. Based on a series of qualitative interviews and by compiling a list of short summaries of literature relevant to our thesis we wished to reflect on the manner in which the respondents see themselves in their teaching roles.We also wanted to discover what problems they had in their work and what visions they held for the future. The methods used by the teachers were mainly: reading- both aloud and individually, process-oriented writing, use of fiction in thematic studies and dramatization. The teachers' aspirations for the future included a centrally situated school library and further education in children's literature. The teachers take the needs of their pupils as a starting point and build on these needs - using many years of literary teaching experience as a foundation."Booktalks" for the children and intermediaries (teachers ...)and education in books and library systems are the childrens' librarians main literaturepedagogic methods.

In this multistudy the aim was to measure the effect of mindfulness and yoga in negative stress. Is it possible for yoga and mindfulness to increase awareness and acceptance to inner and outher circumstances? Mindfulness-Based Stress Reduction (MBSR) has shown good results in how to cope with negative stress and how to stay calm in a stressful envirorment. The qualitative study where Visby Yoga Center and Stockholm Yoga Shakti attended in a survey. Correlation showed no relationship between stress and mindfulness and no significant value, n=20, Cohens d=0,16.

The aim of this study is to examine the understanding, preschool teachers, have about their work related to energy conversion in the human body. Through individual interviews, answers have been sought to the following questions: What do the preschool teachers believe they need to know about the link between food and energy? What are the different methods preschool teachers use to workwith the area of energy conversion in the human body?The results show that preschool teachers have knowledge in terms of food and its nutrients as an energy source for the body to cope with. However the more thorough and detailed questions become all the more uncertainty there is about the topic. Preschool teachers on their own initiative do bring up the topic with the children and begin conversations as well as ask questions, perform experiments and demonstrations.