Arbetstillfredsställelse är ett viktigt begrepp då människor tillbringar stor del av sitt liv på arbetsplatsen. Det är ett svårdefinierat och komplext begrepp, men kan ses som en individs syn på och värdering av sitt arbete och sin arbetsplats. Locke (1976) ser det som tillstånd och upplevelser och Kaufmann och Kaufmann (2005) som ett samspel mellan bland annat den anställdes tankar, förväntningar och själva arbetet. Det finns aspekter som kan kopplas till hur tillfreds en medarbetare är med sitt arbete och sin arbetsplats. I följande studie belyses förhållandet mellan Work Locus of Control och arbetstillfredsställelse samt anställningslängd och arbetstillfredsställelse.

Svenska Kraftnät is (together with the other transmission system operators of the Nordic power system) responsible for keeping balance between the generated and demanded power in the Nordic power system. Spontaneous load variations and system disturbances, however, lead to power imbalance followed by frequency variations. The frequency deviations can be limited to an acceptable level by the spinning reserve, mainly by hydro power control. But there are also other system properties which have a great influence on the frequency and system stability. The frequency and voltage dependence of the loads have a direct influence on the power balance.

The area of Lycksabäcken northwest of Lycksele is a national interest of natural conservationbecause of its geological values with many unique landforms. Many of these landforms indicatethat the deglaciation process in the area was very complex. However, the deglaciation process inthe area has not previously been fully understood. The aim is to add to the knowledge of theevents that took place during the last deglaciation. To do this, the glaciofluvial landforms in thearea were mapped by studying aerial photographs with a Wild Aviopreter and a five-day fieldinventory of key areas for the interpretation.

This article starts with a review of the literature regarding the normal reproductive physiology of the mare, prolonged luteal phase and medical drugs used within reproduction of the horse, with emphasis on Ovuplant®. The purpose of this article was to measure the progesterone level in blood, of mares implanted with deslorelin acetate (Ovuplant®). The study was performed at the Department of Clinical Sciences, SLU, in Uppsala. There were seven mares included in the study. They were divided into two groups, one experimental group (four mares) and one control group (three mares).

Föreliggande studie undersökte en eventuell skillnad i fysisk aktivitet mellan inre (intrinsic) och yttre (extrinsic) motiverade gymnasieelever med utgångspunkt från SDT-teorin (Self-Determination Theory) samt även eventuella köns- och åldersskillnader. Enkätformulär med items från IMI- (Intrinsic Motivation Inventory) och EMI- (Extrinsic Motivation Inventory) skalan för motivation tillsammans med det korta IPAQ-formuläret för fysisk aktivitet delades ut till 194 friskole-gymnasieelever från yrkesinriktade program. Resultatet visade att elever som var mer inre motiverade också var mer fysiskt aktiva. Ingen könsskillnad fanns för fysisk aktivitet eller för inre motivation. Inom IMI-subskalan för självständighet hade kvinnorna ett signifikant högre medelvärde än männen.

Today the competition in the automobile industry is getting all tougher. The technology behind cars becomes more advanced. To get ahead of competitors car companies has to look into new areas of innovation.One important area is vehicle safety. Bigger companies have come so far in vehicle safety that difference between cars more depends on the car type (size) than the technology behind it.There is one area where vehicle safety that still has great opportunities for improvement, which is in active safety. The term active safety states that the car has the ability to identify treats and automatically respond to the treats.

The purpose of this project was to further develop and complete a quadcopter that had been built in an earlier course at KTH, so that it could be used for demonstration and education at the school. The quadcopter was at the beginning of the project completed when it came to hardware, and there was some software functionality implemented but no system for automatic stabilization. The main goal of the project was to implement such a system, and to combine it with the previous functionality to make the quadcopter operable and able to fly. To create a functioning and stable ground multiple basic software features has been implemented, and on top of that additional software to improve the safety, stability and functionality. The most important part is the control system that is responsible for converting sensor and control signals to suitable motor values.

Bakgrund: Historiskt har företag haft stora lager för att kunna möta kundernas efterfrågan. I takt med att kundanpassning och flexibilitet har ökat har det blivit allt dyrare och näst intill omöjligt att hålla lager som kan tillgodose kundernas behov. Att styra sitt lager så att det motsvarar efterfrågan har nästan varit en omöjlighet. En lösning på lagerstyrningsproblematiken är Vendor Managed Inventory (VMI) som innebär ett tätare samarbete mellan kund och leverantör. Kunden tillhandahåller information om lager och efterfrågan och leverantören tar över ansvaret för att varorna i kundens lager inte ska ta slut.

VBG Produkter AB is a process-orientated company that develops, manufactures and markets trailer couplings with belonging coupling equipment, protection equipment against skidding and stands for wagon-bridge for heavy vehicles. The company feels that their set-up time in production for couplings is not at an acceptable level. Due to high demands of customer oriented production the intermediate stock level of included products within the assembly of couplings has gradually increased which has resulted in high inventory holding costs. VBG Produkter applies Kanban in their production, therefore it is important to produce exactly the necessary amount and avoid overproduction. The objective of this project is to suggest appropriate solutions so that VBG Produkter is able to reduce their set-up time in assembly of couplings, by identifying internal and external set-up time for the chosen process bushing cell.

The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).

The present BSc thesis is part of a newly established collaboration between the Swedish zoo Skansen and Kenya Wildlife Service (KWS), and constitutes of an inventory of the Nairobi Animal Orphanage (AO). As a refuge for wild animals found orphaned, abandoned or injured throughout Kenya, the AO has grown over the years and reached an unsustainable point where external help is needed for solutions and improvements. The aim of the inventory is to specifically consider the husbandry and enclosures of spotted hyena (Crocuta crocuta), serval (Felis serval), Sykes? monkey (Cercopithecus albogularis) and vervet monkey (Chlorocebus aethiops) and with the aid of facts about the species, estimate how well their biological needs are satisfied. Different educational elements are also reviewed since one of the main purposes of the AO is for education.

I detta arbete undersöktes det systematiska arbetsmiljöarbetets (SAM) effekt på personal i Kiruna Kommun med avseende på hur deltagande i hälsofrämjande aktiviteter påverkar personalens inre motivation. Mätningar av inre motivation gjordes med Intrinsic Motivation Inventory (IMI) i en elektronisk enkät där även personalens deltagande i hälsofrämjande aktiviteter undersöktes. I enkäten prövades även ett frågeformulär för direkt mätning av förändring av den inre motivationen. Deltagande i hälsofrämjande aktiviteter hade inte något samband med upplevd förändring av inre motivation. Inre motivation hade dock ett samband med deltagande i hälsofrämjande aktiviteter.

Södra Skog chose in 2011 to convert the saw mill in Traryd to a gradually refined sawmill of hardwood. In 2009, they had also acquired the hardwood sawmill in Djursdala. This was strategically important for Södra's business since the demand for hardwood products has increased. The standing volume of deciduous trees in Sweden is today approximately 524 million m3sk and it has increased rapidly in recent years. However, the deciduous forests are to a large extent located in areas that are set aside for nature conservation and is thus not available to the industry.The goal of this work is to create a simple and reliable method for mapping of deciduous wood volumes in areas where Södra Skog is operating (Götaland excluding Gotland).The material that is used is raster databases with estimated forest attributes (kNN-Sweden), data from National Forest Inventory (NFI) and forest management plans.

Background: Anorexia Nervosa (AN) is a complex condition with high mortality. AN has increased within the last fifty years and it?s associated with considerable suffering.Aim: To describe women?s experiences of AN.Method: This study was made as a systematic literature review. Articles were searched in Chinal, PubMed and PsycINFO. Eleven articles were used.

På senare tid har skolungdomar börjat uppleva sig allt mer stressade. Det kan handla om exempelvis stress inför skolan och den kommande framtiden. Denna studie undersökte elever på högskoleförberedande program upplevda stress, stressen inför framtiden samt eventuell betydelse av Locus of Control och kön. Respondenterna utgjordes av 42 poj-kar och 51 flickor, samtliga gick på samma gymnasieskola i årskurs tre. De fick besvara tre bakgrundsfrågor, en inom stressforskning väl använd stressenkät (PSS), en fråga gällande stress inför framtiden, samt Locus Of Control.