Background and purpose: Volleyball requires a lot of the human body, andeffective core stability is necessary for the athlete. Our muscles cooperate as achain of motions and core stabilization is the base for the moving muscles.The most well-known stabilization muscle is m.transversus abdominis (TrA).The purpose of the present study was to evaluate the function of TrA inSwedish female elite volleyball players and to observe the influence of eightweeks of stabilization exercise on the TrA. Method: 10 female elitevolleyball players (mean age 24,7 years, range 18-31 years) participated inthe study. TrA was measured in supine position with a pressure biofeedbackunit. Subjects were instructed to draw in the abdominal wall without movingthe pelvis and hold for 10 seconds.

Concrete floors have traditionally had no problems with annoying vibrations. However with the demand for larger spans the floors need to be made more slender with a higher degree of utilization and lower mass. Therefore new floors may have problems with vibration serviceability. This thesis studies the vibration characteristics of hollow core slabs. The analysis was made in the finite element program Ansys. The hollow core slab was subjected to a varying force simulating one person walking across the slab.

Previous research has suggested that there is a strong and positive relationship between being an entrepreneur and possessing a high degree of subjective well-being as well as job satisfaction. The big five personality traits have also been argued to be significantly related to both subjective well-being and job satisfaction. Little is however known if personality affects entrepreneurs and regular employees differently. In this paper the impact of personality traits on the cognitive part of subjective well-being as well as job satisfaction are investigated separately among entrepreneurs and regular employees. This is done through OLS-regressions using a Swedish nationally representative survey Employment, Material Resources, and Political Preferences (EMRAPP), where entrepreneurs were oversampled in order to be able to compare entrepreneurs (N = 2483) and regular employees (N = 2642).

The focus of this thesis is on what is considered to be a suitable foster home. For the study to be carried out an application had to be made to get access to the foster home assessments in a medium-sized municipality in Sweden. With the support of attachment theory and theory of standards different categories have been picked out and analyzed in foster home assessements that have been approved. The conclusion to what is considered to be a suitable foster home is a complex issue, as there are many factors that are interacting. Social workers seem to focus on the importance of a family?s ability to provide some kind of stability and security for a child who is considered to be placed within their home.

The swedish song contest ?Melodifestivalen? is the most popular TV-show in Sweden according to number of viewers. Not only has it managed to remain the viewers? number-one choice year after year, it has also engaged a lot of the viewers (2, 4 millions in this year?s final) to vote for their favourite song. Melodifestivalen is classified as a creative organisation since it has evident elements of creativity in its process, product and among its employees.

The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.

This thesis is about a potential trade-off between integrity and long-term usability in the choice of file formats for preservation of text documents. Five common formats are discussed: plain text, PDF/A, Office Open XML Document, Open Document Text, and Markdown. The formats are compared with respect to four criteria related to integrity and usability and to the records continuum model: support by widely used software, stability, rendering of contents and reusability.It is concluded that no single format is optimal with respect to all four criteria, when it comes to preserving typical documents in a modern environment, with more or less complex formatting and document structure. Therefore, the feasiblity of using two or more formats for preservation of a single document (e.g. PDF/A combined with Markdown and/or Office Open XML) is discussed.

Syfte och frågeställningar Studiens syfte var att undersöka om utförandet av en isometrisk bålstabiliseringsövning/coreövning kunde påverka upplevelsen av smärta i nacke, axlar och skuldror hos kvinnor med kronisk/långvarig idiopatisk smärta. Studiens frågeställningar var: Hur påverkar utförandet av övningen ?plankan? upplevelsen av smärta i nacke, axlar och skuldror hos deltagarna? Förändras den maximala uthålligheten i övningen mellan deltagarnas första och sista träningstillfälle? Kan interventionen fullföljas av deltagarna?Metod Fyra kvinnliga deltagare som alla hade kronisk/långvarig smärta i nacke, axlar eller skuldror utförde övningen ?plankan? som hemträningsövning under fyra veckors tid. Mängden träning dokumenterades i en träningsdagbok som deltagarna kontinuerligt fyllde i under träningsperioden. Före samt inom en vecka efter träningsperioden ifylldes en enkät med frågor om upplevd intensitet, frekvens och lokalisation av smärta.

The purpose of our thesis has been to study Social Workers view of children?s needs and how they work with children?s needs when they are orphaned because of HIV/Aids in South Africa. The question formulations we used to answer our purpose are:? What needs do the Social Workers consider the children to have?? How do the Social Workers work with children?s needs?We have a qualitative methodological approach in the thesis, where we have performed four interviews with four Social Workers on different organizations in and around Cape Town, South Africa. The presentation of the empirics is made as a summary with representative quotations, which we have interweaved with earlier research and theoretical conceptions.

When a child is hospitalized, it is usually more than one person who needs attention ? i.e. the child as well as its parents. The emergency ward environment and surgery rooms are unfamiliar and the parents feel anxious, insecure and uncertain about how to act. They are expected to participate in the child?s care, cope with their own anxiety and simultaneously convey a sense of security and stability to the child.

This is a report founded on a project by Atlas Copco called NYSTAB.  The application Nystab is a calculation program that can calculate the stability of the rockdrill-rigs made by Atlas Copco. The original version of Nystab is stored in a database from 1997 and the code is made in an old version of Visual Basic. My assignment was to develop the application in to a newer programming environment and make it last better in the upcoming years. The software I decided to use to accomplish this project is C# .NET in Visual Studio and Microsoft Access 2010. All the code is written in C# with some insertions from ADO.NET which helped me to easier connect the code with the database.The coding part was split into two pieces; the first was to develop the application scale done with Windows Forms, the second was to write the code for calculations in the application.

Begreppen upprorsbekämpning eller counterinsurgency (COIN) ochstabiliseringsoperationer utgör ett debatterat ämne i den dagsaktuella militärteorin. Bådabegreppen förefaller användas för en och samma typ av operation. Erfarenheter från Irakoch Afghanistan har inneburit att USA utvecklat en specifik doktrin för counterinsurgency(FM 3-24) respektive stability operations (FM 3-07). Detta indikerar att det föreligger enskillnad i de två begreppen.Syftet med uppsatsen är att undersöka och definiera skillnader i begreppen COIN(upprorsbekämpning) och stabiliseringsoperationer. Medlet för att nå syftet utgörs av enjämförande studie av amerikanska doktriner.

In the pilot study for a biography, some of the methodological and/or theoretical problems facing the anthropologist and biographer are discussed.The empirical section is based on a number of interviews I made with my grandmother over the period 1995-2001. I have come across inconsistencies in the material when rendering a historical event. Furthermore, the material makes me reflect on how the biographer or anthropologist is able to handle or interpret that she and the subject/informant has a different attitude to metaphors and how the metaphors can change over time, space and interpretation.The essay begins with a summary review of some of the central social and behavioural scientific theories that can be related to the individual and the biography.There then follows an in-depth discussion based on Paul Ricoeur's philosophy that says that your identity is created in relation to how you look at your history and future at the present time. Identities are created in an interaction between the field we are currently in, the cultural capital that includes gestures, mannerisms, symbols, our language and the area of interpretation the field allows in the culture. Consequently, the biography is also a representation that is created in time and space and between the subject and the person rendering the subject.The biography or ethnography is transient and is of necessity a historiography.Ricoeur talks about the living metaphor.

This master thesis reviews advances in detection and diagnosis of static friction (stiction) in control valves. Control valves suffering from stiction results in oscillating control loops which in turn decreases both the process stability and reliability. Perstorp AB sees a necessity to automatically detect stiction in valves before the effects of the malfunctioning valves have become too severe. This thesis presents an introduction to maintenance, control loops and how stiction in valves can affect performance of control loops.A selection of methods presented in the literature are introduced and examined using normal operating data from the site in Perstorp. Common for all selected methods is their intuitive ideas and that they are based on normal operating data and minimum amount of process knowledge.

The focus of this thesis is on what is considered to be a suitable foster home. For the study to be carried out an application had to be made to get access to the foster home assessments in a medium-sized municipality in Sweden. With the support of attachment theory and theory of standards different categories have been picked out and analyzed in foster home assessements that have been approved. The conclusion to what is considered to be a suitable foster home is a complex issue, as there are many factors that are interacting. Social workers seem to focus on the importance of a family?s ability to provide some kind of stability and security for a child who is considered to be placed within their home.