In this thesis, a transparent model of the human head has been constructed which was filled with a substance that represented the brain. This model was later crash tested. This was done in order to examine how a transparent model of the human head can be constructed to generate accurate data from crash tests. It was also done in order to examine how impacts on the front of the head can deform the rear of the brain. When a head is decelerating, the brain moves forward inside the skull and may hit the front of the skull.

Bakgrund: Främre korsbandsskador (ACL-skador) är allvarliga och vanligt förkommande inom idrott, speciellt hos ungdomar i åldrarna 14-19 år. En förhöjd risk för ACL-skador har påvisats för individer aktiva inom fotboll och handboll, vilka är mycket populära sporter världen över. Inom dessa sporter har även kvinnor påvisats ha två till åtta gånger högre risk att drabbas än män.Syfte: Syftet var att undersöka om det fanns någon skillnad i knästabilitet vid en hopp-landningsrörelse mellan tjejer och killar i åldrarna 16-19 år, aktiva inom fotboll och handboll samt att undersöka om det fanns någon skillnad mellan fotbollsspelarna och handbollsspelarna, oavsett kön.Metod: Ett drop jump-test utfördes av 20 ungdomar, aktiva inom fotboll och handboll, medelålder ±SD 17,0 ± 0,9 år. Testerna filmades i frontal- och sagittalplanet och analyserades sedan med hjälp av Landning Error Scoring System (LESS). Post hoc-analyser genomfördes för att kontrollera skillnader i 1) graden av valgusställning i knäleden mellan tjejerna och killarna och 2) graden av knäflexion mellan fotbolls- och handbollsspelarna i landningsmomentet.

This master thesis concerns the relationship the librarianhas to the libraries classification system. The system itselfis made by librarians for librarians and is only used bylibrarians. This raises the question of how the librariansrelate to their own system to create order. The empiricalmaterial consists of five in-depth interviews with librarians.Two theoretical approaches were used in the analysis of thematerial with one focus on the librarian?s professional rolland the other on the postmodern theories about humansneed for order.

This Master's thesis in Library and Information Science aims to explore if personal patterns can be detected in web-searching. It is based on a study where the search sessions of nine test persons were video-recorded, transcribed into logs and analysed.A major objective was to find out whether there is a correlation between individual searchers' personal attributes and their web search behaviour. The logs were therefore compared with the test persons' results in a learning style test (Kolb's Learning Style Inventory) and with interview answers about information behaviour and personal background.While several patterns were indeed discovered, none of them turned out to be strictly personal. The nine test persons could be divided into five types of searchers: the purely analytic searcher; the generally analytic searcher; the balanced searcher; the mixed searcher and the browser. All types of searchers were found to have the attribute learning style in common.

The automotive market is currently undergoing a historical change where stricter emission legislations and ever increasing fuel costs have intensified the search for effective alternatives to the conventional internal combustion engine, which has resulted in a substantial trend towards electrification of powertrains. Storage of electrical energy is the fundamental component in this technology where the lithium-ion batteries are currently considered as the most appropriate solution. Lithium-ion batteries, however, as other types of batteries, can only be used efficiently and durably within a specific temperature range.This Master thesis has been carried out in collaboration with Electroengine in Sweden AB, situated in Uppsala, which has an ongoing project regarding development of a modular battery system for electric powertrains. The project is at a stage where an initial prototype has been developed which provides the foundation for this thesis. The study has addressed the battery system performance from a thermal perspective, in order to validate the ability of the system to create a thermally serviceable environment for the lithium-ion battery cells.

There are regulations in sweden that require organizations to manage occupational,  health and safetey (OH&S) issues in a systematic way. The contents of the management system vary depending of the activity of the specific organisation. An accurate management system is crucial in order to assure that rules and regulations are fullfilled. The OHSAS 18001 standard covering OH&S management is intended to provide organizations with the elements of an efficient OH&S management system. The work with this thesis was done at Swemat AB in Härnösand wich is a mechanical industry. In the thesis, the requirements of the OHSAS standard are compared with the current management system.

Problem: Our opinion is that it is important to consider about usability in system development. In this thesis we will focus on usability in point-of-sale systems. The point-of-sale system we base this thesis on is Extenda Retail. Our case study is performed on Ica Kvantum in Bromölla, which implemented Extenda Retail about two years ago. Purpose: The purpose of this thesis is to figure out what important factors there are to consider, in usability aspects, when developing point-of-sale systems, with focus on the cashier.

This essay examines middle school students? understanding of a text read aloud to them in English and the connection between the degree of listening comprehension and the expected increase of vocabulary throughout middle school. The same listening comprehension test was carried out in grades 4, 5 and 6 in a middle school in order to survey differences in English listening comprehension in regard to the ability to reproduce the content of an oral text. The result shows that there was a progression from level to level when it comes to comprehension and the number of words reproduced and that this progression was most noticeable between grades 4 and 5..

This study investigates communication and data in information systems. The paper deals, more specificly, with communication in a CRM-system implemented in a Swedish-founded company in Beijing, China. It discusses cultural, political, linguistic and gender based dilemmas that can arise from the use of a CRM-system in an international and bilingual environment. Fifty-nine interviews were conducted in Sweden and in China, either in Swedish or English. The result of this study shows that communication in the information system is affected by factors, that are not originated in technical shortcomings of the system, but rather from cultural, political, linguistic and gender based pre-knowledge among individuals.

Syftet med den här studien var att undersöka om det finns någon skillnad i prestation beroende på om rekryteringstestet har en koppling mellan test och arbetsuppgifter och när denna koppling saknas. Ytterligare ett syfte var att undersöka om det finns något samband mellan en persons prestation och dennes uppfattning om testet. För att undersöka detta gjordes en enkätstudie. En enkät konstruerades som bestod av tre delar; den första delen beskrev ett rekryteringsscenario som deltagaren ombads sätta sig in i, den andra delen bestod av ett kognitivt test och den avslutande delen bestod av frågor angående hur rättvist deltagaren uppfattade testet. Resultatet visade att det inte fanns någon skillnad i prestation beroende på vilket scenario man tilldelats.

The purpose of this thesis is to analyse and propose improvements to the cost accounting system in use at an airline operating on the Swedish market. The choice of study object is based on the airline?s desire to have its cost accounting system evaluated. During the analysis we have identified a number of points where the current cost accounting system does not correspond to its intended purpose. These points include significant groups of costs not being considered in the current system, potential over capacity is not visible and logic connections between distribution keys and the use of resources are sometimes lacking.

The aim of this Masters thesis is to conduct an analysis of the Swedish classification system the SAB-system from a feminist and queer theoretical perspective. The theoretical framework of the study is feminist and queer theory as well as theories from Library and Information Science, mainly classification theory. The study takes its departure from the idea of classification systems as social constructs, reflecting their time, place and society. Paul Ricoeurs critical hermeneutics is used as methodological guidance. This gives room for a critical perspective in the interpretation.

The development in electronics increases the demand for good design methods and design tools in the field of electrical engeneering. To improve their design methods Ericsson Microwave Systems AB is interested in using computer tools to create a link between the specification and the implementation of a digital system in a FPGA. Xilinx System Generator for DSP is a tool for implementing a model of a digital signalprocessing algorithm in a Xilinx FPGA. To evaluate Xilinx System Generator two testcases has been designed. The testcases are selected to represent the FPGA designs made at Ericsson Microwave Systems.

Denna rapport avser att undersöka för- och nackdelar med att utveckla ett för ändamålet specialanpassat system eller utnyttja de standardsystem, som i det aktuella fallet tryckerikoncernen JMS redan äger och använder. Genom en mer noggrann definiering av ickefunktionella krav på bland annat användbarhet har en specialanpassad prototyp framställts. I projektet användes metoder för kravinsamling som ledde till en kravspecifikation och i sin tur slutade med en färdig prototyp. Prototypen jämfördes med två standardsystem genom användartester och intervjuer. Prototypen visade sig leva upp till de krav som upptäcktes.

Syfte: Studiens syfte var att undersöka om BKC-tavlans ackommodativa stimulus ändras av att tillsätta optotyper av olika form, storlek och placering till den klassiska BKCtavlan.Metod: Fem olika tavlor tillverkades och jämfördes dels subjektivt med ett högneutralt BKC-test och dels objektivt med en vågfrontssensor av märket Complete Ophtalmic Analysis System (COAS HD VR?). En av tavlorna var den traditionella BKC-tavlan, de andra hade optotyper med varierande storlek, form och placering. Mätningarna utfördes på 40 cm. Mätningarna gjordes på 30 personer mellan 18 och 40 år.Resultat: De fem tavlorna visade ingen statistiskt signifikant skillnad i ackommodativ respons, vare sig med BKC eller COAS?.