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1516 Uppsatser om Average abnormal return (AAR) - Sida 53 av 102

Produktivitetseffekter av flerträdshantering

The main purpose of this study is to investigate the productivity effects of multiple tree handling in thinnings. Other important elements have been to investigate in which extent multi-tree handling is used in stands with different stem volumes and the impact of collecting partially delimbed fuelwood assortments has on harvesting performance. The study is based on data from thinnings in Sydved and contractors' operating activities. Collection and compilation of operating schedules, number of stems and surveyed volumes from several contractors and a large number of executed orders underlying the results. Multiple tree handling is used to a much greater extent at lower average stem volumes. Prediction models for productivity of the multiple-tree handling harvesters in the study differ from the productivity models for single-tree handling. In the model developed in this study productivity is not as dependent of stem volume as reference models.

Frontningens Effekt på Försäljningen och Kundens Utvärdering av Butiken - Ett Experiment i den Naturliga Butiksmiljön

The research done in the field of product completeness/incompleteness is limited. The lack of research causes a knowledge gap in the retailing industry, concerning the actual effects on consumer choice, as well as on the overall store evaluation. This report tests the current theories of the subject, and also further aim to explore the effects of completeness/incompleteness on consumer's product choice. The results display an inconsistent effect on consumer's product choice when the completeness/incompleteness in a grocery store is tested. Some products benefit by being incomplete, while others show no such effect.

Simma eller försvinna : En studie av läroplaner samt elevers och lärares uppfattningar om simkunnighet och behovet av att kunna simma.

Today the ability to swim is taken for granted by most people. Most of Sweden?s adult population can swim which is reflected in the reduced number of accidental drownings. About 1900 AD when Sweden?s population was about five million the average drownings per year was 1100.

Filtrering av e-post ? Binär klassifikation med naiv Bayesiansk teknik

In this thesis we compare how different strategies in choosing attribute values affects junk mail filtering. We used two different variants of a naïve Bayesian junk mail filter. The first variant classified an e-mail by comparing it to a feature vector containing all attribute values that were found in junk mails in the part of the e-mail collection we used for training the filter. The second variant compared an e-mail to a feature vector that consisted of the attributes that was found in ten or more junk mails in the part of the e-mail collection we used for training the filter. We used an e-mail collection that consisted of 300 e-mails, 210 of these were junk mails and 90 were legitimate e-mails.

EU och folkomröstningarna En undersökning om de europeiska ländernas skiftande karaktär och hur dess väljare agerat i förhållande till detta

33 referendum has taken place in european states regarding the European Union since the fall of the Berlin wall. This thesis aims to initialy identify potential patterns in this group of referenda to launch and test a theory/hypothesis anchored in this pattern.The european states are differing in nature and the standard of living is chosen as the factor that can potentially have affected the outcome of the referenda held. The carrying thought here being that the voters in states with considerably lower standard of living than the european average would have a more positive attitude towards a deepened cooperation among european states.To try this connection between standard of living and how european citizens have placed their votes a main and principal quantitative test is undertaken. It is followed by discussion and arguments about the result of the test.The argumentation goes from being hopefull of the strenght of the hypothesis, to a more ciritical view of its' strength. The thesis is wrapped up in some argumentation about how and why it fails to explain what it was initially intended to do.

Tre svenska judars upplevelser av antisemitism i Sverige

Textbooks are a very influential medium considering the fact that they often introduce students to information they have never read or heard about before, and as such they become very important in forming students? opinions on different matters. In this study I have taken a closer look at five textbooks in history that are currently being used in the Swedish upper secondary school. My aim has been to find out how East Asia is pictured and also how much space East Asian history is given in these textbooks with the postcolonial theory as theoretical basis. My study shows that East Asia is given very little space compared to Europe in these books, with an average of less than a twentieth of the number of pages that deal with European history.

A review of methods used to measuretemperamental characteristics in horses

Horses respond individually to challenges, and the possibility to use these reactions to evaluate equine temperament with an objective instrument would have several advantages. Horse welfare could be improved by making it possible to find individuals best suited for a specific use, and understanding of the development of abnormal behaviours, such as stereotypies, could be increased. Management routines and training could be adjusted tosuit each individual horse and it could facilitate the selection of individuals appropriate for breeding. There are also economic implications, as horse buyers consider temperament important and after evaluating temperament, money can be spent solely on specific horses with all the right qualities. During the last decade, many attempts have been made to measure different aspects of temperament in horses, and the first aim of this project was to look at these studies and see which methods were used and which temperamental characteristics they measured.

The Purchase Decision Process Revisited: The Role of the Internet on Swedish Consumer Behaviour

The aim of the thesis was to provide further understanding on how Swedish consumers use the Internet as an information source in their purchase decision process. The subject was investigated from different perspectives: gender, product type and information type. The authors used a quantitative approach, and a survey (n=120) was conducted. It was concluded that men and women are equally influenced by traditional word-of-mouth, but more men than women search for product information online and they are more likely to let their purchase decision to be influenced by it. Women tend more to trust commercial sources.

DEHP - från mjukgörare till hormonstörande

Eutrophication is a major problem in the Baltic Sea, as a result of increased loading of nitrogen and phosphorus. In the coastal parts of Östergötland the soil largely consists of clay and contains high levels of phosphorus bound to clay particles. Erosion of the soil in agricultural areas makes the water turbid and transports phosphorus to the Baltic Sea. The aim of this project was to examine the relationship between phosphorus and turbidity in the coastal streams of Östergötland. The aim was also to evaluate the possibility to use turbidity as a surrogate measure for phosphorus.

Ifrågavarande kronopark skall benämnas Skatan : en skogshistorisk analys av Ekoparken Skatan

People have utilised and influenced the boreal forest for many centuries. Prior to the industrial revolution during the 19th century, however, human use primarily only had a low impact on the forest. When the timberfrontier swept over the country, the Swedish forests came to change for ever. The study site for this thesis is situated in the northern part of the county of Västerbotten, Sweden, and has previously been a National forest. Today the area is an ecopark and the land is owned by the forest company Sveaskog.

Solceller ? Solen är ju gratis! : En undersökning av huruvida solceller är ett fördelaktigt energisystem med avseende på tekniska och ekonomiska aspekter

This report is a result of a bachelor thesis at the school of Architecture and the Built environment (corresponding to 15 HP) and is written during spring 2012 at the Royal Institute of Technology (KTH) in Stockholm. The Bachelor's essay is based on the design and dimensioning of a house which is located at a predetermined site in Malmo, Sweden.The idea is to construct a house that is appropriate to use for an average Swedish family of four family members. The house is designed in a modern way with respect to ease of access and disabled facilities. The installation that have been considered are heating, ventilation, sanitation and electricity. Construction calculations and material selection are also discussed.Furthermore, a study about photovoltaic cells has been done.

Kapital är kostsamt: en studie av EVA som värderingsmodell

Uppsatsen behandlar Economic Value Added som ett värderingsverktyg för företag. EVA är först och främst ett internt styrmedel och prestationsmått, framtagen av konsultfirman Stern & Stewart. Modellen har dock börjat nämnas mer och mer i värderingssammanhang. Enkelt uttryckt bygger EVA på att ge aktieägare och långivare en skälig avkastning på deras satsade kapital. Räcker inte företagets avkastning till detta ändamål har ej en acceptabel prestationsnivå uppnåtts.

Turbiditet som ersättningsmått för totalfosforhalt i kustmynnande vattendrag i Östergötland

Eutrophication is a major problem in the Baltic Sea, as a result of increased loading of nitrogen and phosphorus. In the coastal parts of Östergötland the soil largely consists of clay and contains high levels of phosphorus bound to clay particles. Erosion of the soil in agricultural areas makes the water turbid and transports phosphorus to the Baltic Sea. The aim of this project was to examine the relationship between phosphorus and turbidity in the coastal streams of Östergötland. The aim was also to evaluate the possibility to use turbidity as a surrogate measure for phosphorus.

Gaffelbandsskador : en retrospektiv studie av konservativt behandlade hästar

Suspensory ligament injuries are a common cause of lameness among sport horses. These injuries are expensive due to slow healing, extensive convalescence and high risk of recurrence. The prognosis has been reported to be everything from good to guarded depending on the size of the lesion and the location within the suspensory ligament. The purpose of this study was to determine how different factors such as age, use, and location of the lesion are associated with the final outcome after a suspensory ligament injury. Material: Hospital records of 27 horses treated for suspensory ligament injuries at SLU equine hospital in Skara, Sweden, between January 2002 and July 2003 were examined retrospectively.

Solmodul jord- och bergvärmepump

An increasing number of heat pump producers have developed heat pumps that can be connected to solar panels. In this thesis we have examined the possibilities of connecting solar panels to existing ground source- and geothermal heat pumps that has not been adapted to solar panels. During the work process, a prototype plant has been built to compare our theory with the practical results and with our designed sizing tool. The work has rendered in knowledge that will be used to build a sun module that can be easily connect to the existing heat pump system. The existing heat pump, our test plant, has been supplemented by an advanced storage tank used to allow different operating modes.

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