Background: The majority of the occupational accidents and work-related diseases at Swedish workplaces occur due to poor ergonomics during lifts and transportation of objects. The most common consequence of poor ergonomic conditions is low back pain (LBP) and the risk of developing LBP increases as the mechanical loading on the intervertebral disks grows. This study has investigated the biomechanical loading in the low back during two different types of patient lifts. The first lift (lift A) is developed by Modern Arbetsteknik (MA) and the second lift (lift B) is a common lifting technique among care workers. Objectives: The aim of the study was to identify any advantages or disadvantages with MA?s lift, regarding shear and compression forces in the L5/S1 disc.

This thesis work contains a litterature study about electrical motors in general and how PWM-patterns for brushless DC-motors can be made. A suitable method has been implemented as a simulation model in VHDL. A simulation model of a brushless DC-motor which describes the phasecurrents, torque and angular velocity has also been made. The motor model made simulations easier for the complete PWM-system. The design was synthesised and tested with a prototypeboard including a SPARTAN II FPGA.

Background: Low back pain (LBP) is a common disorder in the western world. A majority of those afflicted by a first acute episode is at high risk of developing sub-acute or persistent symptoms. Persistent LBP can be caused by pathological changes in the discs and disturbed neuromuscular activation, which can cause hypotrophy of the extensors strong type-2 muscle fibres. Deadlift (DL) is an exercise that may correct all these pathological transformations. Aim: To investigate the effect of DL-training on patients with persistent LBP.

Under sommaren 2011 utvecklade jag en iPhone applikation för tidrapportering åt Cygate AB. Denna rapport beskriver min arbetsprocess samt diskuterar och motiverar de tekniska lösningar som valts..

In order to reduce the price for, and improve the performance of automatic control systems for magnetization of synchronus generators, the possibilities of using a PC based software PLC system, Programmable Logic Controller, has been investigated. The result is a system based on the CoDeSys software PLC with runtime environment from 3S-Software, communicating with external units via Modbus fieldbus. System price is reduced from ?5000 to ?2000 and system processing speed is reduced from 10 ms for a Siemens S7 PLC to 4 ms with the CoDeSys PLC system though unsolved problems with runtime seizure caused by improper settings in the PC BIOS..

Examensarbetet ?ADP Generator? går ut på att skapa ett datorprogram och en databas somskall effektivisera hanteringen av information från alla stadier ur rymdproduktionen vidJirotex Furudahlsgruppen AB.Informationen i databasen skall hämtas med programmet på ett lätthanterligt sätt.Slutligen skall programmet skapa en sammanställning från produktionen i form av ettdokument, ett s.k. ADP, Acceptance Data Package.Programmet har skapats i Java och databasen i MySQL. Dokumenten är i formatet RTF, RichText Format.I rapporten står en systembeskrivning och förklaringar för valda lösningar..

Den största delen av all energi på jorden utvinns idag från fossila bränslen. Detta innebär stora faror för miljön såsom utsläpp av växthusgaser. För att uppnå en hållbar utveckling behöver vi miljövänliga och förnybara energikällor. Vågkraft är därför en bra lösning för framtidens energiförsörjning med många fördelar.På avdelning för Elektricitetslära i Ångströmslaboratoriet vid Uppsala universitet jobbar man med utvecklingen av ett vågkraftkoncept där en boj som flyter på havsytan kopplas till en generator på havets botten. Arbetet sker inom det så kallade Lysekilsprojektet och systemet testas på en anläggning i Lysekil på västkusten.

The main focus of this study was to investigate how Swedish military veterans experience that events during an international service affect them after completed mission. This also includes the contact with their relatives. Secondly, this study deals with the course of the crisis, personal defense mechanisms, cumulative stress and post-traumatic stress syndrome (PTSD).The study was performed using a qualitative method and comprises individual interviews with six Swedish veterans. The responders were all men of different military positions, who participated in one or more international missions during 1993 to 2011.The results of this study show that, according to the veterans, the return back home is the most strenuous part of an international mission. With all the new experiences that an international service brings fresh in their memories, it is hard to re-adjust to the life of a civilian.In connection with the return back home, different degrees of stress reactions were also commonly seen, for example sleep disturbance, restlessness and exhaustion.

AbstractThe aim in this dissertation is to investigate into the working of the rehabilitation process as to actors involved. A specific focus has been set on the component ?Work introduction?. The study shows that the road back to work is a complex matter. Individuals involved have different backgrounds and living situations, which influence this rehabilitation.

Introduction:Children in early age diagnosed with scoliosis and in need of surgery will grow up to undergo several operations in the back. Parents play a major role in the care of their children during hospitalization.Purpose:The purpose of this study was to investigate parents´ experiences of having a child diagnosed with scoliosis before the age of five undergoing repeated surgeries in the back.Method:The study had a qualitative descriptive design. Five parents with children aged 5-15 years, who have undergone several operations were interviewed about there experiences of the child?s illness and treatment. Phenomenological-hermeneutical analyze where used.Results:The parents felt a sense of shock when they were told about their child?s diagnose and treatment.

Denna rapport innehåller de samlade erfarenheterna från ett produktutvecklingsprojekt i kursen TDDD77 vid Linköpings universitet. Projektets mål var att skapa en applikation för att visualisera mätdata från en specialutrustad bil på en surfplatta. Detta var önskvärt då det inte fanns något sätt att se om någon sensor slutade fungera mitt i ett test. Projektet delades upp i en förstudie följd av tre iterationer, där en färdig produkt presenterades på en teknisk mässa i slutet av iteration 3.Resultaten visar att Essence Kernel Alpha States kunde användas som en hälsokontroll för projektet, men då de kunde ses som rätt vaga och lämnade rum för tolkning passade det bäst som ett komplement till exempelvis milstolpar.Att använda Google Protocol Buffers sågs som ett viktigt tekniskt val tillsammans med uppdelningen av klienten i front- och back-end. Protobuf underlättade kommunikationen mellan server och klient som annars krävt ett nyskapat protokoll.Uppdelningen av front- och back-end underlättade inte bara resursfördelningen vid utveckling utan även vid felsökning då det i många fall blev lättare att se precis var felet uppkom.

The aim of the study was to illustrate how care managers reflect and act in regards to self-determination and integrity when caring for residents over 65 years old who have a dementia diagnosis. Our main questions dealt with how care managers handle the right to self-determination and integrity when a person has dementia, to which extent the care managers listen to the person with dementia and how the care managers look upon the residents with dementia?s ability of self-determination. To find the answers to our questions, we interviewed ten care managers within the elderly care in Gothenburg, Sweden. We used qualitative interviews based on a semi-structured interview guide.

During the past year it has been made possible to buy back a company?s outstanding stock. This is done in order to change the capital structure towards a situation with less equity. A change in capital structure means a change in the cost of capital for a company and by that a change in the value for the stockholder. This Master Thesis studies the relation between capital structure and business risk.

Introduction:Children in early age diagnosed with scoliosis and in need of surgery will grow up to undergo several operations in the back. Parents play a major role in the care of their children during hospitalization.Purpose:The purpose of this study was to investigate parents´ experiences of having a child diagnosed with scoliosis before the age of five undergoing repeated surgeries in the back.Method:The study had a qualitative descriptive design. Five parents with children aged 5-15 years, who have undergone several operations were interviewed about there experiences of the child?s illness and treatment. Phenomenological-hermeneutical analyze where used.Results:The parents felt a sense of shock when they were told about their child?s diagnose and treatment.

During the last years the number of Swedish detective stories which take place in the province outside the big cities has increased enormously. In this study I have analysed the novels by the three authors Viveca Sten, Åsa Larsson and Johan Theorin to investigate the connection between the milieu and the story and in what way it is involved in the crime riddle.They all keep to the formula of the classical detective story but represent different variations within this formula. In spite of the differences in their stories the basic pattern is the same. As their protagonists the authors are emotionally connected to the place in the novels. This connection it strengthen by the authors themselves as well as the publishing companies when introducing them on the market.