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544 Uppsatser om Tree mortality - Sida 17 av 37
Risks Related to the Maritime Transportation of Oil and Gas (mainly Crude oil, LPG, and LNG) -A Conceptual Study and Empirical Outlook on the Baltic Sea and UK Territorial Waters to Mitigate Risks
Transportation of oil and gas by the Sea characterizes challenges from a safety viewpoint. In this type of transportation, different sizes of special tankers carrying oil and gas. The marine transportation of these scarce natural riches is involved with risks and hazards, which may lead to many losses; for instance, wasting oil and gas, injuries of people, damaging ships and properties, and damaging environment. The main purpose of this thesis is to evaluate the risks, hazards, and accidents during transportation of oil and gas (mainly Crude Oil, liquefied petroleum gas, and Liquefied natural gas) by the Sea with concentrating on transport safety. Hence, a better understanding of these risks and hazards can contribute to decrease of addressed losses.This study is carried out on risks associated with maritime transportation of oil and gas starting with describing the general casual chain (dealing with causes, incidents, accidents and consequences/causalities), continuing with describing risk analysis techniques (including event tree analysis and fault tree analysis) and risk control measures/options, and finally implementing aforesaid investigations on real data from two areas; namely UK territorial waters and the Baltic Sea.In this study, the results of analyzing data from 1991 to 2010 in UK territorial waters revealed that collision and grounding were two most common accidents in terms of crude oil tankers, LPG and LNG carriers in which 44% of all accidents were equally divided between collision and grounding.
Biblioteksprojektet - en utvärdering av ett samarbetsprojekt mellan Arbetarnas Bildningsförbund (ABF), Studieförbundet Vuxenskolan (SV), Sveriges Författarförbund (SFF) och Folkbibliotek
The paper is a research of"The Library project", a three-year collaboration project betweenArbetarnas Bildningsforbund, Studieförbundet Vuxenskolan, Sveriges Författarförbund and public libraries at 14 places in Sweden.The goal of the project is to find new forms for collaboration between libraries, authors and organisations for adult eduacation under the motto "two branches of the same education tree".The purpose of this research is to make a close description of the project and also look at the goals anf purposes of the different actors in the project. The main thought is that the different goals and purposes have caused at least some of the problems in the project..
Hur påverkar naturvårdsåtgärder mängden av vedlevande insekter : Manuellt dödade träd vs självdöda
Today?s forest managers implement a large number of methods to increase the amount of dead wood in Swedish forests. They use everything from high cutting of trees to girdling trees and burning forests. However, implementation of these measures without proper knowledge of their consequences is a common problem. This study has been performed to increase knowledge about two of these measures, girdling and high cutting, and how these actions affect the number of wood-living insects living on dead trees.
Nytta, skada och kostnader vid screening för bröstcancer med mammografi
The efficacy of screening for breast cancer with mammography has been a subject of controversy during the last decades. However, the general opinion is now that screening reduces mortality in breast cancer (Zackrisson, 2006). It is nevertheless important to weigh the efficacy against the harm and costs associated with screening. Cost-utility and cost-effectiveness analysis of screening have generally failed to incorporate side effects such as anxiety and discomfort related to screening tests and the following diagnostic tests (Gyrd-Hansen, 2000). This study seeks to include such side effects in a cost-utility analysis.
"I don't wanna hear about your band!" : tre feminister om musik, feminism och motstånd
This thesis sets out to examine how feminist struggle can be negotiated, defined and motivated. By using Oral history as a theoretical and methodological framework, three persons narrative are being constructed, explored and discussed throughout the thesis. All the interviewees define themselves as women and feminists and have all practised music in different separatist rock and pop-groups from 1970 to present. Themes as music as political action, and separatism for persons who define themselves as women are discussed. The tree informants agree about some feministic goals such as equality and the right to be able to play and perform music regardless of gender identity, although the means to reach these goals are formulated differently. .
Tetratermmodellering och regressionsanalyser mellan topografi, tetraterm och tillväxt hos sitkagran och lärk : en studie i norra Island
This study was made in an attempt to give the forest research centre Mógilsá a producedtetratherm map and a better understanding of how topography and temperature influencethe growth of two tree species. The digital tetratherm map model, covering the northernpart of Iceland, was developed to investigate the correlation between tetratherm and thegrowth of Picea sitchensis and Larix (sukaczewii + sibirica). The study confirms theusefulness of digital terrain models in providing data for a lot of different factors and forthe tetratherm model. Hopefully will this tetratherm map be used in future studies.Secondly, investigations were made correlating the growth of the two species againsttopographic factors representing height above sea level, distance to the sea, slope andtopex. Thirdly, investigations were made comparing the aspect and the ground shape tothe growth.The growth rate of Larix had strong significant correlations to the tetratherm and thedistance to the sea- factors.
Jaktens betydelse för Södermanlands landskap : Hur viltvård kan påverka variationen av lövträd och buskar
The fragmentation and reduction of deciduous forests in Sweden is threatening many species. Particularity worrying is the loss of broad-leaf trees, since a diversity of species is often associated to them. Today many deciduous trees are situated along the border between forested and open areas, and these small fragments can be important for biodiversity.The aim of this study is to analyze if wildlife management can affect the variation of deciduous trees and bushes in the landscape. In brochures and literature Svenska Jägareförbundet (the Swedish Association for Hunting and Wildlife Management) recommend hunters and landowners to promote deciduous trees ? often broad-leaf trees ? as wildlife management measures, while the Swedish forestry laws can be sensed as unclear regarding the treatment of these trees.Five properties in Södermanland, Sweden, were chosen as study areas and inventoried in respect of trees and bushes in September 2013.
Är förekomst av knäckesjuka i tallföryngringar mindre på stora naturvårdsaspar än på aspsly?
Pine twisting rust (Melampsora pinitorqua) is a parasitic rust fungus found all across Sweden causing damage resulting in lower quality and reduced tree growth in pine stands. In Sweden, the fungus is dependent on two alternate hosts; European aspen (Populus tremula) and Scots pine (Pinus sylvestris). Pine twisting rust has five different spore stages, two of them (uredinio- and teliospores) on the leaves of aspen. Injures on aspen caused by pine twisting rust is not extensive. On the other hand, when it infects the annual shoots of Scots pine it often results in a bent steam or even a top shoot breakage.
Matematiksvårigheter och dyskalkyli : Ur speciallärarens syn på specialpedagogik
The aim of this essay has been to surrey the perspective of view the special education teachers have on the tree concepts of special education, compensatory-, critical and dilemma perspectiveThe questions that have been covered in this study areWhat does the concept of special education means for the special teachers? What does the concept of mathematic difficulties means for the special teachers?What does the concept of the diagnostics of dyscalculia means for the special teachers?A qualitative research method has been used to answer the questions in this essay. In the purpose to get the most out of the study..
Tillvarons pussel : En studie om fyra behandlares tankar kring barns självkänsla.The puzzle of existence. A study about four therapists thoughts around children?s self-esteem.
The study aims to get knowledge about how therapists express their apprehension and their method of working around children with low self-esteem. From this angel I have tree questionings : How does the therapists define self-esteem? How does the therapists know if a child has a low self-esteem? How does the therapists work with this complex of problems? The study is a qualitative survey with interviews. The group of survey consists of four therapists from different backgrounds, who work with children and their self-esteem. The interviews were recorded on tape and written out running text and analysed in relation to its subject.
Automatisk detektering av akustiska resonansfrekvenser i trästockar
In order to measure the quality of the logs, one can with help of Fast Fourier Transform technique get the signals resonance peaks. With help of these peaks you can see whether the quality of a tree is good or bad. This report contains the work of a where a program has been developed to be able to process a vibration created by an automatic hammer hitting on a log of wood. From the processed signal the program should be able to show both the raw wavesignal and the processed measured data from the resonance peaks. Beyond the raw wavesignal and resonance peaks the program should also be able to control the automatic hammer.
Cytokinuttryck vid vaccination med olika vaccinkoncept mot FIP :
Feline infectious peritonitis (FIP) is a feline viral disease with high mortality. There is no cure or any effective vaccine available today. Many questions are yet to be answered about this disease and the immune response in affected cats.
The aim of the study is to evaluate two different techniques for the study of cytokine profiles in cats vaccinated with a vaccine concept against FIPV. More information about the immune response in these cats could give valuable information to better understand the pathogenesis of the disease and the development of an effective vaccine.
Supply Chain Configuration : Ens studie av förbättringsarbetet "Supply Chain Configuration
In order to measure the quality of the logs, one can with help of Fast Fourier Transform technique get the signals resonance peaks. With help of these peaks you can see whether the quality of a tree is good or bad. This report contains the work of a where a program has been developed to be able to process a vibration created by an automatic hammer hitting on a log of wood. From the processed signal the program should be able to show both the raw wavesignal and the processed measured data from the resonance peaks. Beyond the raw wavesignal and resonance peaks the program should also be able to control the automatic hammer.
Habitat preference and foraging behaviour in adult red-tailed monkeys (Cercopithecus ascanius)
The red-tailed monkey (Cercopithecus ascanius) is a small, alert and active animal inhabiting forests with dense vegetation and as such hard to observe in its natural habitat. The principal aim of this study was to scrutinize whether the methods, previously used in a behavioural study of the blue monkey (Cercopithecus mitis) can be applied in studies of the red-tailed monkey?s behaviour as well. Additionally, habitat preference and foraging behaviour of the red-tailed monkey were examined. The study was carried out between the 16th and the 22nd of March 2009 in the Sabaringo forest, located on the western border of the Masai Mara National Reserve.
Kunskapsfabrikens rötter
The purpose of this study was to investigate, through a qualitative survey, the need of knowledge and strategy in organisations today and tomorrow. The empirical investigation is built on a semi structured interview that was conducted on nine different companies in Gislaveds community. The companies were from three different branches namely: tree, metal and polymer. Three interviews were conducted in each branch.The result from the interviews showed that the globalisation had put the companies under hard competition which had made the need for rationalisation and effectivness more apparent. Having said this, the demands on the organisation and the individuals within it will constantly increase.