Modelica is a multi-domain and equation-based modeling language. Modelica is based on object-oriented principles and non-causal modeling. The language is constructed to facilitate reuse and decompose models. The models and the modellibrary can modified to design a new nonlinear components.Object-oriented modeling is an excellent way to analyze and study large complex heterogeneous physical systems. The object-oriented modeling approach build on reusing and decomposition of models and non-causal modeling.Modeling physical systems often leads to a DAE system with index 2 or 3.

Tillämpningen av genetiskt modifierade (GM) grödor har varit utbredd över hela världen och har ökat markant sedan den första GM-grödan blev tillgänglig för kommersiellt bruk 1996. Sedan starten har det tillkommit mycket forskning kring risken för spridning av transgener från grödor till vilda populationer. För att en transgen ska kunna etableras i en vild population så måste tidiga generationer av hybrider överleva för att kunna återkorsas upprepade gånger med den vilda arten, det gör att det genetiska materialet från grödan succesivt reduceras i varje generation tills det att transgenen är det enda DNA från grödan kvar hos avkomman. För att denna process ska vara stabil krävs det en stark selektion för transgenen. Det här sättet för en gen att etableras i en population kallas för introgression och tros ha spelat en stor roll i växternas evolution.

Migration and giving birth are crucial decisions for animals during their life cycle, which may have lasting consequences on their population demography and fitness. Migration can entail a variety of possible effects for an individual, such as access to high quality food and reduced risk for predation. The moose (Alces alces) in northern Sweden is partially migratory and moose females are known to give birth to one or two calves. The synchrony between time of calving and timing of migration has not been compared before, especially in terms of energy maximizing and time minimizing perspectives, which may provide vital cues for fitness benefits of migration. I investigated effect of timing of birth and individual life history on distance, timing, stopovers and duration of 190 individually marked female moose that have been tracked for multiple years in ten different areas in northern Sweden.

Problem: This report concerns how the students of Södertörn högskola values physical papers. Even though technology have made it possible to digitalise documents, students today print and copy documents more then ever before. It will examine what the students finds valuable in physical papers and why they choose to print a document they just as well could read and manipulate via a computer.Method: This report consists of an empiric study, in form of a web poll and of a number of interviews. Furthermore earlier studies on the matter will be taking in consideration during the analysis.Results: The study shows that the students of Södertörns högskola values physical papers highly. The students choose to print a document since they find that it is easier to read, to make notes and that a printed document is easier to use on the move, rather then using a computer..

Aim The purpose of this research is to study the need and the importance of marks in secondary school. The reason is to find out the students' perception of how they are motivated. Furthermore, how students experience the assessment and grading in physical education.What attitudes do students have towards the mark in the subject physical education in 6th and 9th grade, also how does SOC affect their attitudes towards marks?What kind of motivational significance do marks in physical education have in 6th and 9th grade based on their SOC?How do the students experience the assessment in grading in 6th and 9th grade based on their SOC?Method The data was collected with a quantitative approach. The sample consisted of four classes from 6th grade and five classes from 9th grade; all from two different schools in the county of Stockholm.

The purpose of this study was to investigate how patients who had undergone Hallberg's  TIA-school at Enköpings Lasarett rate their physical and mental health 18 months after participation. Another purpose was to examine whether they re-diagnosed with a TIA or suffered a stroke. The design of the quantitative study was longitudinal and descriptive. In the study 16 patients participated and to measure their mental and physical health the questionnaire SF36 was used. The results showed that none of the participants suffered a new TIA or stroke since participation in the TIA-school.

Aim: The aim of the study was to examine the effects of ?Rehabilitation with psychotherapy and yoga in group? with cancer patients, regarding physical, social, emotional and functional wellbeing. The participants? health and satisfaction with the project were also evaluated. Method: The evaluation was made with quantitative method and descriptive, longitudinal design.

AimOur aim with this study was to examine how outdoor education is designed and experienced in three upper (senior) levels of compulsory school in Stockholm, and to compare it with the Norwegian equivalence.MethodOur method has been interviews with ten teachers, of whom six are Swedish teachers and four are Norwegian teachers. Two Swedish teachers are teaching in other subjects than Physical Education, four are teachers in Physical Education, two are teachers in Norway in Physical Education at and two are teachers in Norway at university level. Questionnaires were used to examine the Swedish pupils? attitudes towards outdoor education. 90 questionnaires were delivered, and 70 answered them.

Jacobsson, A. (2013). Physical activity on prescription ? patient experience. C-thesis inPublic Health.

There are many aspects which must be taken into consideration when studying individuals? need of exercise. The study investigates if impulsivity and Health Locus of Control affect the continuity of physical practise. The main presumption was that individuals with high impulsivity, high Powerful Others and high Chance Health Locus of Control, would have a significantly harder time to maintain a continuous physical activity. The survey used two standardized tests to measure impulsivity and Health Locus of Control and in order to be able to measure the insensitivity and the periodicity of physical exercise, a test was developed by the authors.

Health care is increasingly complex, which increases the demand for knowledge and expertise. Despite this, the share of specialized nurses, including anaesthesia nurses, has decreased from 65% to 48% from year 1995 to year 2008, according to statistics from the National Board of Health and Welfare (Socialstyrelsen) in 2010. Studies indicate that there may be various factors in the work environment that anaesthesia nurses, choose to leave the anaesthesia profession. The purpose of this study was to examine how anaesthesia nurses experienced the physical and psychosocial work. The study was conducted as a descriptive study with qualitative approach.

Humans and dogs are both mammals. One of the differences between the two species is that man walk on two legs and dogs on four legs. There are also differences in the nerve system between the two species. The human nerve system is supposed to provide opportunity for fine motor tasks- while the nerve system of the dog is more focused on the ability to perform locomotor tasks. Humans need to increase their motor control and postural control when affected by various conditions and diseases.

 Background: Earlier studies show that 30-92 % of ACL reconstructed return to their pre-injury physical activity. It is not clear why some people do not return.Purpose: The purpose of this study was to investigate the return rate to pre-injury sport among ACL reconstructed men. Another purpose was to characterize those patients who return and those who do not.Metod: A Web-based questionnaire with questions about returning to physical activity was sent out during the spring of 2012 to 93 men who had undergone an ACL reconstruction 6-40 months earlier and who, after 6-40 months after surgery, were evaluated with validated strength tests and self-assessment outcome measures.Results: At 12 months after surgery 56 % of the subjects had returned to their pre-injury sport. If the criteria were set higher ?back to the same- or a higher level? 14 % had returned.

The purpose of this study is to investigate the effect of physical activity for people suffering from depression and which nursing interventions nurses can do to make this patients start to exercise. The method used, is a review of articles from Ci-nahl, Cochrane, Elin, PsycInfo, Pubmed and Science Direct, which were analyzed according to Polit och Hunglers criteria for scientific research. The result from the nine studies shows that physical activity has an antidepressive and anxiety reduc-ing effect. Interventions emerged is supporting, encouraging, activating and teach-ing about physical activity as health-promoting measure. Conclusion: Nurses can as an intervention introduce exercise as complementary treatment for people suffering from depression.

AimThe aim of the study is to examine how future teachers of Physical Education view the subject, the occupation and their attitudes about the future and create an understanding about this through these research questions:In what way do the teacher students justify the subject Physical Education?How do teacher students view the future of the subject and the occupation?According to the teacher students, what and whom affect the subject? Is there a difference between the teacher students?views and attitudes depending on if they are currently in their second or last year of their education?MethodThis study use qualitative methods in order to create a deeper understanding for the participants? views and attitudes. Eight teacher students of Physical Education were interviewed. The interviews were between 27-57 minutes. They were recorded, transcribed and then analyzed from a socio-cultural perspective as well as Bernstein?s theory of classification.ResultThe participants justify the subject in words such as that it gives the students? knowledge about how to uphold a decent standard of living and an understanding for the correlation between physical activity, nutrition, health and wellbeing.