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270 Uppsatser om Validity of prediction - Sida 14 av 18

Väljer man rätt? : en uppföljning av Svensk baskets regionsuttagningar

AimThe purpose with this study is to evaluate the selectationprocess and what happened with Swedish basketball players born 1986-89, that were selected to participate in Miki Herkel Cup (MHC), which is a camp for the 60 most talented players in Sweden.Metod  Together with the Swedish basketball federation, we decided to survey those who attended MHC as well as the players playing in the senior national team 2009.  The data collection has been made through a survey, with multiple choice questions in order to get as good as possible view of what factors that had influenced their development as basketball players. The survey was sent out to all players born 1986-89 that attended MHC and the senior national team of 2009. We used an electronic survey tool called questback which is an internetsurvey and sent out the survey to 320 players. To collect information we´ve searched within literature and databases.Result  18 % of the players answered the survey, which decreases the research validity.

SJUKGYMNASTIK SOM BEHANDLING VID LÄNDRYGGSDISKBRÅCK

ABSTRACTBackground: Most cases of lumbar disc herniation are asymptomatic. When symptomatic, LDH may cause a significant physical and mental distress. Initially, most patients are treated conservative but sometimes operations may be required.Aim: The aim of this study was to provide a review of the scientific basis of physiotherapy, including behavioural therapy, as a treatment to lumbar disc herniation regarding pain, function and the size of disc herniation in people suffering from lumbar disc herniation.Method: Four databases were used in the searches of literature. Assessment of the validity of the studies was done with the PEDro-scale and valuation of evidence rate was made according to guidelines made by the Swedish Council on Health Technology Assessment (SBU).Result: Nine RCT-studies were included with a total of 713 participants. The scientific basis is moderate to support a pain reduction and limited regarding improvement of physical function when it comes to physical exercises, including MDT.

Att scanna eller inte scanna : En studie om neuromarknadsföringens potential som komplement till eller ersättning av enkät, intervju och fokusgrupp.

In order to stay competitive and to be the first choice for customers in a world driven by a high level of competitive advantage, it is important for companies to stay ahead of the competition by conducting thorough market research. Even if this tends to be the case, many products still fail when reaching the market, leaving companies with great losses. The reason for this could be that the development of existing research methods has stagnated, or that they simply lack the ability to find the true answer as to what intentions underlie consumer?s decision making when shopping. Many believe that a new method is desired in order to get a better picture of what customers really think.

Navigering i Habermas världsdimensioner : en fallstudie i bedömnings- och betygsförfarande inom praktisk idrottsundervisning

Aim: The purpose of the study was to investigate how the assessment and grading is designed and practiced in the practical courses of physical education at GIH - the Swedish School of Sport and Health Sciences, along with how it could affect newly graduated physical education teachers? ability to assess and grade students. The study was based on Habermas?s system and life-world theory.What view occurs concerning proficiencies, basis for assessment and marking among teachers who are responsible for examinations within physical education at GIH?How is the examination structured within physical education at GIH?How are skills and proficiencies among assessment and marking further mediated to students in the teacher education at GIH?Method: The case study was realized by performing qualitative interviews with a total of four teachers at physical education at GIH. Additionally, syllabi were text-analyzed to improve the validity of the study.Results: From the results we found that the teachers experience marking as a complicated assignment, where particularly the didactic ability but also the practical ability form a formative and summative assessment.

Rekryteringsprocessen och sociala medier : Hur arbetar olika HR-funktioner i Sverige med sociala medier i rekryteringsprocessen

An increased use of social media has enabled a new arena for HR functions and the work with HR issues. Proponents are critical of this, as it can lead to ethical and legal dilemmas. So far the research on this area is limited. On this basis I found it interesting to study how social media is used in connection with the recruitment process. Those who will benefit from this study are primarily those dealing with recruitment, but also others working with HR issues.

Självskattning av exekutiva funktioner vid kognitiv träning : En utvärdering av The behavior rating inventory of executive functioning - self report

Traditionellt utvärderas effekter av kognitiv träning med objektiva prestationsmått. Syftet med uppsatsen var att undersöka självskattad exekutiv funktion som ett alternativt mått för att utvärdera effekter av kognitiv träning. Som utfallsmått valdes The behavior rating inventory of executive functioning - self report (BRIEF-SR). Vidare användes blandad design med för- och eftermätning samt tre oberoende grupper. Gymnasieelever (n = 63) delades in i; aktiv träningsgrupp, aktiv placebogrupp och passiv kontrollgrupp.

JOB-RELATED SOCIAL WELL-BEING SCALE - APPLICERBAR INOM OFFENTLIG PRIMÄRVÅRD? : En pilotstudie

Bakgrund: Välbefinnande berör alla yrkeskategorier, inte minst hälso- och sjukvårdspersonal. Det är viktigt att uppleva välbefinnande för att kunna utföra god omvårdnad. Ett nytt mätinstrument kallat Job-Related Social Well-Being Scale (JSWS) har utvecklats av Ali Kazemi och har testats bland personal inom skolan och industrin men inte inom hälso- och sjukvård. Syfte: Syftet med denna studie var att bland hälso- och sjukvårdspersonal undersöka applicerbarheten hos ett mätinstrument avsett att mäta socialt välbefinnande på arbetet. Metod: Denna pilotstudie hade en kvantitativ ansats.

Beslutsmodell för inköp och lagerhållning av motorer i ett produktionssystem : En fallstudie på Sandvik

AbstractIt is important to choose which spare parts to keep in stock. With the right spareparts in stock the costs for inventory and production loss will decrease. Cavalieri et al. (2008) highlights that the balance between inventory cost and production loss is underestimated.  It affects the company and must be considered before decision on purchase.The problem with spare engines is that they are all more or less critical for the production. That can be a reason for why no previous research targeting engines and classification of with engine should be kept in stock has been found.

Hur hanterar skolor hot och våld? : En fallstudie av ansvarsfördelning och implementering av riktlinjer på skolan

How schools handles threat and violence among pupils could have an effect on the surrounding world, since schools reflect society at large. This study attempts to explore how this is handled within two schools, one secondary school and one upper secondary school. How do the schools work with violence and threats amongst pupils? Who is responsible for what? Is this work based on school guidelines? Why/why not? The theoretical starting-points have been Lundquists implementation-based control-model and an organizational point-of-view using theories about open and closed systems, primarily Meyer and Rowans neo-institutionalism. To gain validity, the study has been carried out by way of triangulation, i.e.

Webbsystem för matprisjämförelser

This is a thesis project in the field of information technology which begins by evaluating existing food price comparison systems and subsequently aims to design an improved, web based system for said purpose. The system features interfaces for price reporting, price comparisons as well as various search and review functions. The objective is to create a system able to compete with existing price comparison systems, which requires careful selection of products that can be found in all foodstores that also represent different households; a user-friendly price reporting and price comparison interface and an efficient tool for ensuring the validity of reported prices.The designed system features a more accurate formula for calculating average prices in events where the real price is missing; a more reliable security mechanism forv alidation of reported prices and a more comprehensible interface for viewing price reports, reporting prices, reviewing stores and products in comparison with existing systems. The system does, however, suffer from some optimization issues primarily in the form of inefficient database modeling; SQL queries and JavaScript code although testing has shown that these shortcomings do not hamper overall performance to such a degree that usability is compromised. Further usability testing performed on the system with five test subjects shows that a high level of overall user-friendliness has been achieved even though some special features, such as the detailed report containing price information per product for each store need to be improved.It is not possible to say at this time whether or not the designed system will be able to compete with existing ones or if the very concept of food price comparisons per se is viable in terms of profitability and marketability.

Simulering av simulinkmodeller med Extended Kalman Filter

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.

Kulturmötet i capoeiran i Sverige   : en kulturantropologisk undersökning

Aim Capoeira is a sport and art form strongly associated with the Brazilian culture. The main aim of the study was to examine how the capoeira is introduced into the Swedish society. Also to study the practitioners and trainers experience around the culture meeting. The questions were the following: What differences and similarities exist within capoeira in Sweden and Brazil? How are Swedish practitioners and trainers from a Western culture affected by the culture meeting? How are the Brazilian coaches in Sweden affected by the culture meeting? Is there a Culture crash between the Brazilian and Western cultures in capoeira? MethodQualitative interviews were chosen as an approach because it was considered appropriate in terms of the purpose and questions of the study.

Vetenskapsteoretiska och metodologiska perspektiv på tidsgeografiska visualiseringsmodeller. -En fallstudie i samhällsvetenskaplig visualisering

In the history of scientific visualization techniques there is a lack of social science practices and methodologies. The advent of modern computer graphics brought the use of visualizations into a whole new era, but even though the tools by which such modern visualizations are created become easier to access and use, the lack of social science researchers harvesting the benefits of such tools still remain. This ease of use, increase in power and accessibility plus the ever growing need within the natural sciences to augment the human senses has further complicated the relationship between scientific methodologies, validity, reliability and the use of visualization techniques. This relationship must be explored, demystified and understood in order to fully grasp the impact of visualization practices when incorporated into any given scientific method. Within the social sciences there is one example of a tradition that has since its conception carried within it a graphical notion and a visualization practice.

Reglerstrategi för fria ventiler : ? Utveckling av en fyrtakts förbränningsmodell för att prediktera optimala ventilinställningar

As emission legislations across the world continuously pushes engine development forward,engineers constantly need to come up with and implement fuel saving technologies. During thelast decade, variable cam phasing has become a popular solution to increase gas exchangeefficiency. This configuration is typically mechanically constrained by camshaft limitations, anda solution to circumvent this problem would be to use a different valve actuation principle.One example of this is to use pressurized air controlled by electrical solenoids. Such a systemhas been developed byCargine Engineering and this provides the starting point for this work. Tobe able to operate the valvetrain on an actual engine, a control system is needed.

Översvämningsrisker längs Funboån

Flooding events are no longer rare, floods occur all over the world. Accordingly, it is vital for the society and different authorities to work with flood mapping. To meet the goal of Uppsala kommun to map the risks of floods in Uppsala län, a map of the different areas around Funboån which are inside the area of risk for flooding have been developed.In the work, cross sections and the water flow have been measured. Moreover, an echo-sounding have been carried out in Funboån to map the bottom topography. From the bottom map and laser scanned data covering the study area, a terrain model was created.

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