Simulations of simulink models using Kalman filters are often very time-consuming. This problem depends mainly on the fact that the Kalman correction has to be performed at each sample instance through the whole simulation. The goal for this thesis work is to reduce that time-consumption for the filtering part (the integration partis treated in a complementary report) of a simulation. Furthermore a Matlab routine to perform parameter tuning and finally a graphical user interface is developed.The filtering part of the simulation in this thesis is based on an Extended Kalman Filter (EKF). The time optimization of this filter considers searching for the possibility to replace the today?s existing Matlab functions that is used to perform the filtering calculations.

Abstract The sociological problem of this C-essay is sociology of emotions. This paper deals with experiences of emotions and work environment for people who work in human service organizations, and has been limited to the profession of recreation leader.The purpose of this paper is to examine how emotions affect the recreation leader?s work. For this we used eight qualitative interviews with recreation leaders from different youth recreation centers. What we have found in this study is that recreation leader?s work includes both positive and negative aspects.

The purpose of this work is to examine how ecotourism exists in Sweden. In order to answer this, the essay has been based on a qualitative method, which means that the authors have mainly used depth interviews for information gathering. Some of the empirical work is also done using the qualitative method, by gathering statistics, figures and scientific articles. The essay is divided into various chapters to give the essay a clear structure and for the convenience of the reader. The part that have been of most use and support for authors is the depth interviews with the interviewees.

The study aims to gain insight into how social workers perceive their psychosocial work environment and examine whether this effects the performance of their duties. The study mainly addresses the shortcomings of the psychosocial work environment of Social Services and the implications it entails for social workers health and wellbeing. The psychosocial work environment includes physical and psychological factors therefore the study's interpretive framework consists of organizational theoretical and social psychological concepts and previous research on the subject. We examined the organizational and social psychological connections to social workers perception of their work environment with a qualitative approach. The empirical data was collected through interviews with four social workers in a municipality in central Sweden using a semi-structured interview guide.

Nature is in many ways considered a source to both physical and mental health among people. Trends in today?s society reveal that children become more distanced to nature. Seen from the perspective of sustainable development this trend is considered crucial: it is of importance that children in their early ages experience nature positively in order to develop a dedication towards environmental issues as adults.The purpose of this study is to investigate how teachers use outdoor learning as an educational tool. Research data were collected through a series of interviews.

Sweden is the country that has got the largest amount of elderly in the adult population in the world. The physical activity level decreases as we grow old and we experience muscle mass loss and a bone density reduction. This leads to an increased risk for falls and subsequent fractures. The purpose of this study was to investigate whether an exercise program could affect muscle function and balance ability to prevent falls. 17 women (age 64-79) participated in this study and was assigned to a control group (n=7) and an intervention group (n=10).

This thesis of 15 hp has been implemented at Halmstad University, in collaboration with Saab Dynamics in Linköping. Saab Dynamics is a company operating in the defence industry where competition is tough. This necessitates new ways to increase efficiency in the company, which is the basis for this thesis. Saab Dynamics wants to introduce simulation driven design. Since Saab Dynamics engineers have little experience of simulation, required a user methodology with clear guidelines.

The need for second language learning is increasing in today?s multicultural and globalized society, and adult studies are becoming more common. Teachers must encourage all students, and all schools need to promote equality. Motivation is one of the most important factors for positive learning and progress, and it can be helpful for second language teachers to know more about this subject. The aim of this study was to examine which motivational factors that influence adult immigrants to learn Swedish through SFI education in Sweden.

Background: Ovarian cancer affects many women worldwide. Tumors that grow in the genitalia and pelvis have because of its placement a large threat to the sexual ability. Treatment for ovarian cancer may lead to the sexual possibilities inhibited. Sexual health is a state of physical, mental, emotional and social well-being related to sexuality. Sexual health can be experienced in spite of disease, dysfunction or infirmity.

Syftet med studien var att bland högskoleanställda undersöka skillnader i Work-Life Balance och arbetstillfredsställelse beroende på deltagarnas kön samt beroende på om deltagarna hade barn under 18 år eller ej. Studien syftade även till att undersöka skillnader i arbetstillfredsställelse beroende på deltagarnas ålder. I studien ingick manliga och kvinnliga högskoleanställda som arbetade minst 80 % och som undervisade och/eller forskade inom den aktuella tjänsten. Studien genomfördes som en web-enkätundersökning på två högskolor i Sverige. Totalt besvarade 125 deltagare på enkäten som utgick ifrån två olika mätinstrument; Netemeyers, Boless och McMurrians (1996) skala som användes för att mäta Work-Life Balance uppdelat på Family-Work Conflict samt Work-Family Conflict och Minnesota Job Satisfaction Questionnaire (MSQ) som mätte inre och yttre arbetstillfredsställelse.

There is no general aging process therefore should health efforts directed at elderly population based on each individual as a unique person with specific needs. When aging becomes a fact not generally decrease the lust and the desire to be active but it is perhaps more about the body's ability to keep up on what the head wants. Therefore the range of activities towards the elderly population requires some adjustment that can partly be achieved by taking some of the older people?s experiences. The purpose of this study was that by the older people?s experiences of organized activities in a social context to illustrate how they perceive their participation.

This essay has aimed at exploring how different companies work with CSR. We want to highlight their opinions about the topic, what it means for the companies that work with it and how important it is to apply CSR in a business. The reason why we chose this subject is because of the possibilities that come with working with CSR. We think there are a lot to be done when it comes to corporate social responsibility and we want to be a part of this new type of marketing. The win-win-situation that occurs with CSR is unique and it makes the subject interesting.

The psychosocial work environment in hard professions is hardly studied and this study was implemented to observe port workers psychosocial work environment in ports of Västerås and Köping. There are two purposes with this study: firstly, to examine how ports of Västerås and Köping, Mälarhamnar AB, can improve and develop their business by using psychosocial methods. To do this, a questionnaire study and three interviews with workers were done and the results were used in a SWOT- analysis. Secondly, the aim is to be able to use the results and make a difference in the business development by adjusting the psychosocial work environment. The results show that the employees are happy at work and are happy with their work colleagues.

Corporate Social Responsibility (CSR) has recently become increasingly important for companies to integrate into their ongoing work. CSR is about social, environmental- and financial responsibilities. The tourism industry often involves large impacts especially on environmental and social factors, which is why CSR-work plays an important role according to previous studies. One trend that has increased among consumers in the tourism industry during recent years is to travel to the lowest possible price. It has for example become increasingly common to book airfare by budget airlines.

My purpose in this paper is to study teachers' work in reading and writing in primary school and special school. I want to find out if they use the same methods, strategies and materials to help students learn to read and write. I will find out the answer to my purpose by performing two qualitative observation and two qualitative interviews. Lundberg (2010) is the researcher I relate to during my study. Through observation, I see how teachers work with students in the classroom during a lesson in the Swedish language. During the interviews, I received answers to how teachers work with language, the materials, methods and strategies they use. I found out that teachers use specific strategies when they help their students. They use a work material that is tailored to curriculum in Swedish language and it is based on the phonics method. .