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1516 Uppsatser om Average abnormal return (AAR) - Sida 29 av 102
Förröjning i förstagalling - vad kostar det och följer utförarna instruktionerna?
This report is a B.Sc. Forestry thesis work at the school for Forest Management, SLU.
The work was an assignment from the forest owners? association Mellanskog.
The aim of the work where to investigate the economical result of removing undergrowth trees before first thinning, and a follow-up of the contractors and their compliance with Mellanskog standards.
This thesis work was divided in three parts: The first was to find a relation between the net volume from the first thinning and the cost of cleaning undergrowth trees. Secondly there was a follow-up in the field, to investigate whether the contractors have done the undergrowth cleaning according to Mellanskog?s directives.
Indelning av trakter inför gallring på Holmen Skog : en utvärdering av svårigheter och möjligheter
A common goal in practical forest management is to maximize the yield, measured in economical terms. When a forest stand is thinned a so called inoptimality loss can arise due to non-optimal decisions. This means that the selected management schedule results in a lower net present value than the optimal one which lowers the profitability for the forest owner. Holmen Skog uses the term tract which means an aggregation of stands made before a management action. A tract should be delineated in different tract parts in connection with pre-thinning planning if there is different bearing capacity within the tract, different thinning grades should be used or if the tract contains a weaker part that should not be thinned.
Ädelmetall i portföljen : En jämförande studie om ädelmetallers diversifieringsegenskaper
A comparative thesis to study precious metals impact on a portfolio, during a long period of time, from the fourth quarter of 1986 to the third quarter of 2012. Five different portfolios are compared; three of the portfolios containing one of the following precious metals, gold, silver and platinum, the fourth portfolio contain all precious metals and shares, and the fifth portfolio containing only shares which is represented of OMXS30. This is done to determine the portfolio that generates the most return in relation to the least risk with the help of historical prices. Sharpe ratio is used to measure the profitability of precious metals by measuring the yield relative to the total risk. The study also measures precious metals correlation with shares..
Passage efficiency and migration behavior for adult Atlantic salmon at a Half-Ice Harbor fish ladder
Due to exploitation of the world?s rivers, the upstream migration of anadromous species is frequently delayed or even prevented. To mitigate these problems and allow fish to migrate past obstacles, structures such as fish ladders have been developed. However, recent studies show that many of the present fish passage facilities are deficient. Monitoring and evaluation of passage facilities is therefore crucial to enable necessary adjustments.
Innehållsbaserad bildåtervinning med Haar-transformation
The purpose of this thesis is to evaluate 7 different search strategies for content-based image retrieval with respect to retrieval effectiveness. The strategies are based on different levels of resolution implemented by the Haar transformation. The result of the study shows an improvement in both mean average precision and mean recall in strategies based on lower levels of resolution..
Busshållplatsers kapacitet : Utvärdering av tillämpbarhet av modell från Highway Capacity Manual 2000 med uinderlag från busstrafik i Stockholms innerstad
Stockholm is growing with almost two fully loaded SL-buses a day. One of the consequences that derive from this is the increase of public transport travelers who put the regionally governed public transport up to the test in terms of its capacity. The Transport administration in Stockholm County initiated 2015 a project with the purpose of simplifying the calculation of bus stop capacities. A hypothesis (set up by the Transport administration) based on that a model for calculation of bus stop capacities could be calibrated for Stockholm conditions is being researched in this bachelor?s essay.The study is implemented by self-collected traffic data from bus stops located in the Stockholm city center.
"Det går inte att lita på föräldrarna" : Hur skildras omsorgsbristande föräldrar i LVU-rättsfall?
The aim of this study was to, with a social constructivistic approach, examine how parents,regarded as neglecting their children, are depicted in 12 LVU-legal cases from the Supreme Administrative Court in Sweden. By using a document analysis influenced by discourse analytical tools, we found that there are repeated descriptions of the parents, which constructs an image of parents as shortcoming in the care of their children. The categories lack of emotions, mental disorder, substance abuse and physical maltreatment were the main reasons for child neglect that the parents were described from. Attitudes towards authority, aggression and immaturity, lack of insight, and deficiencies in the home were repeated in the description of the parent. We further found that mothers were regarded as more responsible of the children compared to fathers.
Utbrändhet bland svenska alpina tränare, finns det? : Vad ska kunna göras för att förbättra tränares arbetssituation?
Aim: The purpose with this study was to examine if there is burnout or symptoms of burnout among Swedish alpine coaches. The study would also investigate if the place of work have any meaning of developing burnout symptom or to become burnout. How the coaches think that their working situation could be any better is also going to be lightened.Method: The participants in this study were all full time paid alpine coaches in Sweden. Total amount of participator was 28. 13 of them worked on ski gymnasium, 4 worked on ski collage and 11 worked in SSF (Swedish Ski Federation).
Normering av nasaleringsvärden uppmätta med nasometer hos barn i fyra- till femårsåldern i Linköping
The Nasometer is a non-invasive acoustic measuring instrument that quantifies the ratio ofnasal resonance in speech. It can be used as a complement to perceptual judgment of speech impediments, for example, in patients with cleft palate and velopharyngeal insufficiency. Inorder to determine if a nasalance score is abnormal, it must be compared to norm data. The main purpose of the study was to collect reference nasalance scores in children between fourand five years of age in Linköping. An additional objective was to compare the results tonorm data collected in Umeå.
Att lösa sudoku med SAT-lösare
Yahtzee is a popular dice game around the world. The complexity makes the game interesting to play and analyze. This report compares the effectiveness of the mathematically optimal strategy with a strategy that can be used for casual play. The rules used are those of the Nordic variant Yatzy, in which a few but important rules are different from the American Yahtzee. To evaluate the everyday strategy 100,000 games was simulated in a java program written specifically for this purpose.
Ett nytt arbetssystem för nutritionsmonitorering av geriatrikpatienter
Background: The Swedish population is aging [1] and malnutrition is a common problem among elderly people [2]. A method called food registration is used to monitor the patients? nutritional intake, with the purpose of reducing the risk of patients deteriorating in nutritional status during hospitalisation. However, the current method is not satisfactory and many food registration lists are incomplete. [3-6] Thus, patients do not receive a qualitative nutritional care since the assessment of the patients? nutritional status is based on incomplete documentation.Purpose: The purpose of this master thesis is to increase the quality in the nutrition monitoring process in the geriatric units B72 and B74 at Karolinska University Hospital in Huddinge, Sweden.
Kapitalkostnaden på Stockholmsbörsen: En studie av marknadens implicita riskpremie i hög- och lågkonjunktur, samt hur den implicita kapitalkostnaden korrelerar med kapitalkostnaden enligt CAPM
This thesis explores some issues regarding estimations of the cost of capital on the Stockholm Stock Exchange through reverse engineering of the Residual Income Valuation model and through usage of the Capital Asset Pricing Model. Previous studies are in conflict of whether the risk premium changes considerably over time or not. Furthermore, the risk premium estimated by CAPM tends to be fairly stable. In this study, reverse engineering of the cost of capital implied by analysts? forecasts shows a significant difference in the risk premium over time.
Full Circle: upstream and downstream migration of Atlantic salmon (Salmo salar) in the northern Swedish river Vindelälven
The life cycle of the anadromous Atlantic salmon (Salmo salar) can span large geographic, political, and socio-economic boundaries. Management strategies and regulations that only concentrate on small spatial scales often overlook larger basin-wide problems, especially relating to post-spawn seaward migration. In this master thesis one entire migration cycle of wild adult Atlantic salmon in the unregulated northern Swedish river Vindelälven was monitored by radio-telemetry tracking during upstream spawning migration and downstream seaward migration back to the Baltic Sea. The effect of ladder passage variables (time to pass, total time in the ladder, passage day over the ladder) at a fish ladder downstream in the river Umeälven, as well as fish size, were evaluated to determine if differences in upstream migration distance in the river Vindelälven could be observed. Ladder passage variables did not affect migration distance, but size exhibited a negative relationship to migration distance.
Kan risken för finansiell kris förutsäga första dagens avkastning vid börsintroduktioner?
This thesis studies the relationship between risk and the first day returns of Initial Public Offerings (IPO) by assessing the risk of each issuing company with a risk model that combine financial key ratios of importance. The study is based on 92 IPO?s that were made on the Stockholm OMX stock exchange during the period of 1997-2009. The point of departure was to investigate if the uncertainty created by the asymmetric information between investors and the issuing firm could be captured by predicting the possibility of failure in the future. This has been studied by applying Skogsvik?s probability of failure model on the 92 issuing firms.
Slut eller början? - en studie av före detta soldaters reintegration i Sierra Leone
The aim of this study about post-conflict economic, social and political reintegration of ex-combatants is to understand how such a process should be prepared for in order to help as many traumatized and sometimes destructive or disabled soldiers as possible to re-establish themselves as functioning civilians as well as preparing communities for their return. In order to do this I have focused on Africa and in particular the DDR-process of post war Sierra Leone. My study concludes that the relation between ex-combatants and civilians and the prospect of a positive future are crucial to a successful reintegration process..