A trading halt is a measure conducted by a securities exchange in order to reduce information imbalances between market participants, thus enabling a higher level of market efficiency. A market is said to be efficient when new information concerning a company is instantly reflected in its stock price, implying that abnormal stock returns cannot be systematically achieved in an efficient market. The purpose of this study is to examine the occurrence of abnormal stock returns following trading halts on the Stockholm Stock Exchange. The study is based on a sample of 64 trading halts executed between January 2003 and February 2008. Historical daily prices for stocks subject to trading halts during the period have been gathered from the Datastream Advance database, while information on date and time of trading halts have been collected from the Stockholm Stock Exchange website.

This report describes an investigation of the indoor climate in two different workspaces. Since we a big part of our lives are staying indoors in artificial environments, and more particularly in our workplaces, we think it would be interesting to do this investigation. The technical solutions for air treatment systems began with simple natural systems without fans and where the thermal rise of the air applied. In modern time is technical air treating systems used to take care of the fresh air supply. This type of units can supply filtered air with the right temperature to the building. Well-functioning ventilation is essential to bring clean fresh air to the room and effectively remove impurities without sound- or draught problems. The indoor climate is relevant for the output capacity.

Bakgrund: Den heliga fastemånaden Ramadan innebär stora omställningar i cirka en och en halv miljard muslimers liv. Detta har, med bakgrund i den effektiva marknadshypotesen, föranlett flera olika undersökningar av eventuellt återkommande prisavvikelser i samband med Ramadan, en så kallad Ramadaneffekt. Tidigare studier visar dock på något motstridiga resultat vilket gör att vidare forskning inom området är motiverad. De till viss del förändrade livsvillkor som Ramadan innebär har i tidigare studier använts som förklaringsvariabler, något som dock kan ifrågasättas och undersökas vidare med utgångspunkt i Behavioral finance.Syfte: Denna studie ämnar undersöka om det existerar någon Ramadaneffekt på 17 olika muslimska aktiemarknader samt att kritiskt granska tidigare studier inom området och förklaringsvärdet i fastans fysiska och psykiska påverkan vid en eventuell Ramadaneffekt.Genomförande: Studien är av både kvalitativ och kvantitativ karaktär med huvudsaklig tyngdpunkt i statistiska analyser av studiens datamaterial. Regressionsanalys med dummyvariabler utgör den statistiska metoden och resultatet analyseras genom att applicera Behavioral finance till dokumentstudien för att försöka förklara de statistiska resultaten.Slutsats: Studien finner att endast den pakistanska aktiemarknaden uppvisar en signifikant prisavvikelse under Ramadan.

This study was conducted at VikingGenetics' bull breeding station in Falkenberg, Sweden. The bulls waiting for the results of their progeny testing at this station are either kept in group housing or individual housing. Since both of these housing systems have advantages and disadvantages, it was in the interest of VikingGenetics to know which of these housing systems is the best. The aim of this study was to investigate the welfare of the bulls in these two housing systems through behavioural observations and the use of activity monitors. In the preparations for the study 16 bulls, 8 in each housing system, were chosen.

Aim: Auditors objectivity is an obvious part of auditing, but there is doubts and hesitation in society today because of the corporate scandals that have occurred in recent years. Several researchers suggest that auditors actions and behaviors is connected to the ethical climate within the organization. A relationship that also affects auditors objectivity and independence. This thesis aims to investigate how the ethical climate influence auditors choice of relationship to their clients, by choosing a relational and close relationship or a transactional and distanced relationship. And if the client approach have an effect on the auditors objectivity.Method: A survey was conducted among 232 certified accountants in Sweden.

One of the main objectives of all food production is to produce foods that can safely beconsumed without fear of being sick. Despite this hundreds of people are affected in Sweden offood poisoning almost every day. Most cases are caused by a small group of so-called pathogenicmicroorganisms. The most frequently affected are the small children, the elderly, persons withreduced resistance and pregnant. The reasons behind the food poisoning are often ignorance andlack of food hygiene.

Riskbedömning är en väsentlig del av klinikerns vardag. Varje patient ska riskbedömas och riskgrupperas, vilket sedan utgör grund för val av behandling, behandlare och revisionsintervall. I tandvården i Sverige idag används det ett flertal olika stödsystem eller riktlinjer för riskbedömning av oral hälsa. Syftet med studien var att ta reda på vilka stödsystem/riktlinjer som finns för riskbedömning av oral hälsa i Sverige idag och ge en beskrivning av de mest frekvent använda systemen samt göra en jämförelse av dessa. Syftet var också att undersöka huruvida dessa system är evidensbaserade och utvärderade samt att kartlägga kunskapsläget, gällande evidensbasering och utvärdering av stödsystem/riktlinjer, för riskbedömning av oral hälsa.

This master thesis was done for a company called BRUKS which is active in woodprocessing,bio-energy and bulk material handling industry. The idea for the master thesis wasto develop a new reclaiming method for silos where wood chips are being stored. A mediumsegment of between 1000 ? 5000 m3was defined as the segment with the most sales potential.Two different concepts were produced, one for new constructions and one for rebuildingalready existing silos.In the beginning of the master thesis a lot of time was spent on visiting different BRUKSoffices and customers to get an overview of the industry and the product. This informationwas the basis when the idea generating phase began.

Who is responsible for youth policy implementation?This thesis attempts to deepen our understanding of Swedish and Nordic youth policy. Youth policy is cross-sectoral and includes all the decisions and measures affecting the conditions of young people. National youth policy therefore concerns young people's life situations in a number of different areas, such as work, housing, education, health, leisure and influence. The purpose of the study is to increase the knowledge of youth policy work the last century by understanding the impact of youth research concerning adults' role in youth policy implementation. A mixed method approach has been applied to the study: interviews, documents and youth theory have been analysed.

Stereotypic pacing is frequently observed in captive carnivores, however the underlying causes of this behaviour remain somewhat unclear. One of these possible causes are unpredictable feeding signals, which may give rise to frustration and subsequent pacing. Animal keepers at Nordens Ark had noticed that their Amur leopards had shown stereotypic pacing in connection to the passing of ATVs (All Terrain Vehicles) used by animal keepers primarly when feeding the animals in the park. The aim of this study was to investigate whether the stereotypic pacing of the two Amur leopards at Nordens Ark were affected by the introduction of a signal associated with feeding. The leopards were trained by classical conditioning to associate the sound of a siren with the delivery of food by an animal keeper.

A high quality is highly requested in today?s thinnings, since these are the base for continued value development of the forests. Thinning quality often means a minimization of damages on soil, stems and roots during the cutting. One way to reach a high quality is to set up goals that will be followed up after the cutting is made. Self-checking gives information of the machine drivers work and guarantees the customers a good quality of work.

This thesis is examining if the management, the managers and the employees have a differentpoint of view regarding the purpose and the expectations of a performance review. Additionally it is an assignment from the Swedish company Flexlink AB with the purpose of constructing a new template for their performance reviews. The assumption is that if you manage to create one template for performance reviews that meets the expectations at all levels of the organization, it will contribute to create a meaningful performance review.We decided to study this from an organizational cultural perspective, since the organizational culture plays a significant part in performance reviews. Performance reviews are systematic conversations between employees and managers related to planning, information exchange and developing the relationship. Previous research indicates that if employees are satisfied with their performance reviews, they prone to be more satisfied with their work situation and have a higher organizational commitment.

The number of ideas at innovative companies usually exceeds the amount of available human ormaterial recourses, this include ideas for development of new products. Since they are not able to doeverything they want to do they have to choose between ideas to develop new products. This includesthe decision on when to start, stop or kill a project as well as the thought process of prioritizing betweenongoing and potential projects.Project Portfolio Management (PPM) is an organizational process, with the purpose of systematicallyorganizing and running the activities that aim to evaluate, select and prioritize ideas and projects fordeveloping new products. PPM include four major goals to be fulfilled; Maximizing Value of thePortfolio, Achieving a Balanced Portfolio, Achieving a Strategic Alignment and Running the RightNumber of Projects.The purpose of the thesis was to develop a more visual and formal PPM process for the early stages inproduct development in one department at St Jude Medical AB, Sweden.The thesis was conducted by following a methodology known as Process Modules. The methodology isan approach for developing a PPM process that fits a specific company.

Syftet är att genom en litteraturgranskning av vetenskapligt publicerade forskningsartiklarundersöka vad peer-tutoring som en form av kooperativt lärande kan innebära för möjlighetentill social interaktion och lärande när elever med funktionsnedsättning inkluderas i enidrottsundervisningssituation. Många elever med funktionsnedsättning är inte inkluderade iidrottsundervisningen som de skulle önska, detta begränsar deras påverkansmöjlighet till godhälsa genom fysisk aktivitet. Kooperativt lärande och peer-tutoring har visat sig gemöjligheter till ökad social interaktion och lärande. Sökmetod: Tio vetenskapligt publiceradeartiklar granskades och tre återkommande områden kunde skönjas. Dessa var socialinteraktion, lärande hos eleverna och lärarens roll i undervisningssituationen.

Aim and research questionsThe aim of the study was to examine pupils? physical activity on schoolyards in northern Stockholm?s surrounding municipalities, based on the schoolyards? design regarding supply of spaces, material, equipment and gender. The research questions were:1. Was there any association between how well spaces, materials and equipment were represented in the schoolyards and pupils? physical activity during recess? If so, how did the association come to expression?2.