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834 Uppsatser om Structural conservation - Sida 33 av 56

Naturhänsynen i FSC-standarden : vetenskap eller gissningar?

The Swedish FSC standard (Forest Stewardship Council) is a level standard used to certify forestry. All the major Swedish forest companies are using the FSC standard, and approximately 50% of the Swedish forests are FSC certified today. In the essay six items within the chapter on environmental issues and biodiversity are examined: the proportion of protected forest, the proportion of annually burnt clear-cut stands, the number of trees with large diameter, the amount of dead wood, the proportion of deciduous trees within a stand and the proportion of deciduous-dominated stands. The FSC standard states a level for all items, and the purpose of the essay is to analyse whether these levels are supported by research within the field of conservation biology. The validity of the levels of the six items is them discussed to evaluate whether changes are required to the next revision of the FSC standard.

Upptryck : En jämförelse mellan RIDAS och internationella riktlinjer

Old hollow trees of oak contain a large amount of wood mould. Unfortunately, these trees have in the last century been greatly reduced in numbers. It has resulted in that species that depend on these habitats, saproxylic species, have become at risk to decrease in numbers or die out regionally. Previous studies have shown that the volume of wood mould is an important factor for occurrence and population size of saproxylic organisms. The aim of the present study was to examine how the volume of wood mould varies among ash (Fraxinus excelsior), lime (Tilia sp.), maple (Acer platanoides), aspen (Populus tremula) and oak (Quercus robur).

Försvinn. Påminn. Eller återvinn? : om det industriella kulturarvets framtid genom Norra Sorgenfri

This essay deals with the industrial past, present and future and begins with the impact and importance the industrial revolution has had on us humans, socially, economically and structurally. Today's society has developed from industrial production of goods to the production of services but the industrial sites remains. The essay examines issues concerning the protection of the industrial environment, their status as a cultural heritage, what is done with our industrial heritage and the opportunities it has for the future. Malmö has a great industrial history and now one of the cities oldest industrial sites, the north of Sorgenfri, will be transformed. The essay compares the plan with guidelines for future development from the Town Building Office with an antiquarian investigation for the same area.

Lokala skillnader i konsumtion av påväxtalger och terrestra löv hos en differentierad population av Asellus aquaticus

That ecological and evolutionary processes can take place on the same time scale is a recent insight. Today we also know that they are directly linked to each other. In the lake Tåkern, in year 2000, there was a structural change when phytoplankton declined and submerged vegetation, mainly stoneworts began to spread. This led to evolutionary changes in the aquatic sowbug, Asellus aquaticus which had previously been limited to the reed, most likely feeding on detritus. But then, sowbugs could exploit the new habitat in stoneworts and a new food resource in terms of periphyton.

Fuktproblematik i platta på mark : En analys av uppkomsten till fuktproblem

When constructing a building, a number of aspects must be harmonized in order for it to fulfill requirements ? a building must fulfill requirements such a load-bearing, conservation of energy and a good indoor environment by means of, among other things, moisture proofing .Moisture problems in buildings can affect health negatively. As we are increasingly staying in indoors, demands on a good indoor environment are higher.This work starts with examining moisture problems in slab-on-ground solutions, and then links the various scenarios to moisture problems in a concrete slab of a real building. The building with moisture problems is located in Årby by in Borlänge and moisture damage was found in the slab at an apartment adjoining wall.By reviewing literature written within the field of moisture problem, making hand calculations and modeling in the program Comsol Multiphysics, judgments are made to find explanations as to why the rise of moisture occurred in the building in Årby by.Generally, the following guidelines may be used to reduce the risk of moisture problems in slab-on-ground constructions:Drying of construction moisture before laying the floor material.Using draining layer beneath the slab, to prevent capillary suction.Using insulation under the slab, partly for comfort and to establish the temperature difference between the ground and the concrete slab.Avoid direct contact between the wood and concrete, due to degradation and fouling smells that normally occurs.If necessary, use additional vapor barrier.In addition to the above, there are various methods for moisture-proof and moisture-monitoring by design or by the method ByggaF suited for the entire construction process various events..

Exosomes as a potential mechanism of intercellular spread of prion protein

Structural rationalizations and regionalization of the agricultural sector in Sweden has lead to unevenness in thedistribution of plant nutrients. Nutrients are lost from crop producing farms as harvest products are sold, whilefarms with animal production often have manure in excess of their needs. In addition to this the retention ofwater and nutrients in naturally occurring wetlands has decreased due to a reduction of wetlands in number andsize in the agricultural landscape. This increases nutrient levels in agricultural run-off and causes eutrophicationas well as nutrient losses from arable soils. One potential solution to both problems would be to store nutrientrichsurface water from agricultural areas and use it for irrigation of agricultural crops.

Gynna nyttodjuren i hemträdgården

Biologisk bekämpning innebär reglering av oönskade växt- och djurpopulationer med hjälp av naturliga fiender. Det finns fyra grenar inom biologisk bekämpning och en av dessa är gynnande av naturliga fiender. Det innebär att förutsättningarna i trädgården anpassas så att önskvärda invånare gynnas och på så sätt minska populationen av skadedjur. En viktig skillnad mellan gynnande av naturliga fiender och de andra formerna av biologisk bekämpning är att inga organismer sätts ut utan de naturligt förekommande används. Det finns många olika nyttodjur som bör eftersträvas att ha i trädgården. Dessa brukar delas in i predatorer, som jagar och äter upp bytesdjuret, och parasitoider, som parasiterar genom att lägga sina ägg i eller i närheten av sitt byte. Genom att skapa en mångfald av olika sorters växter i sin trädgård kan en mängd olika insekter och andra djur lockas dit.

Porträttering av förorten Tensta

The purpose of this study was to investigate hove some suburban areas image is shown to the public in the media coverage of suburban areas, and this is why I in this paper want to look more closely at the image of Tensta in the news media and how people in Tensta perceive themselves. News media has a very important role in the creation of human worldview. It influences our own identity and affects what a person believes is the difference in us and them. In the post-colonial theory, identity creation is a central role in philosophy, us and them. Based on the above purpose, I formulated an overall main question that this essay should answer.

Intendenturpersonalens syn på säkerhetsarbetet ombord på ett passagerarfartyg i färjetrafik

Today, the catering personnel are an essential part of the safety organization on board Swedish passenger vessels in ferry services. Their responsibilities for the safety on board have increased in connection with the changes in regulations made on the shipping industry. These changes have been mostly related to human factors and structural leadership in the last 25 years.A well-functioning safety organization requires competence and commitment from every individual. Previous researches on Swedish passenger ferries concerning the safety organization have raised issues regarding the catering personnel?s perception of the safety on board.

Movement patterns of Eurasian lynx (Lynx lynx) around their kills in southern Sweden

During the last ten- fifteen years the Eurasian lynx (Lynx lynx) population in southern Sweden has increased considerably. This area has a high density of both people and roads and have a higher roe deer (main prey of lynx) density than the rest of the country. Movement patterns such as how long animals utilize their kills and how far they travel from their kills between revisits is unknown for lynx in southern Sweden. The aim of this study was to examine how different factors affected the time lynx used their kills and the distances they travelled from the kill between revisits. The data was prepared and calculated using ArcGIS and the study is based on 98 ungulate kills and 12 lynx individuals.

Utveckling av en produkt som förenklar koppling av släp

This thesis was conducted at SverigeGrepen in Vänge-Körlinge, Uppsala, Sweden.SverigeGrepen is a family business that develops and manufactures a few different parts of different kinds of products. My task is to come up with a good idea that facilitates the coupling of trailers, i.e. from an idea to a fully functioning prototype. The product is intended for use by all customers for all kinds of trailers. The actual goal of the work is to develop a full prototype that you can install and use in the easiest way possible, a prototype that follows the specifications.

Beteenden hos geparder i två stora svenska djurparker

Cheetahs in the wild are declining due to hunting, lack of prey, exploitation of habitats and loss of cubs to predators. Those are the main reasons to why cheetahs are kept in captivity today for conservation. Many cheetahs kept in captivity are seen pacing ? a behaviour that arise when the animal is prohibited from performing natural behaviours. It is believed to being attributed to a lack of stimulation in the environment where they are being held.

Barns rättigheter - en självklarhet?

Numerous studies have showed that Swedish municipalities are responsible for several of the activities that concern children and their rights, e.g. school and health care. Furthermore, the Convention of the Rights of the Child is an international agreement that Sweden has signed and ratified which also implies the obligations that Swedish municipalities have. The purpose of this study is to investigate and compare, from a social justice perspective, how children?s rights are being emphasized and how children?s opinions are being taken into consideration at the municipality level in Sweden.

Ungas avhopp från kommunfullmäktige : En studie om unga fullmäktigeledamöters beslut att lämna sina uppdrag

Young councillors are currently under-represented in Sweden's municipalities. Young councillors are also stepping down in greater numbers than older members. This paper explores the reasons why young councillors choose to resign from their mission, so to identify possible remedies to the problematic trend of underrepresentation of younger people in local authorities in Sweden.This qualitative essay intends, through interviewing politically-active young people who has left their assignment, to study the reasons for resignations from elected posts. To see what could be the reason I have looked at previous studies and theories about opting out but also tried to remain open to identifying new and emerging trends previously undetected in existing surveys.The results showed that the political assignment proved to be too time-consuming, with young people choosing to spend their time on career and leisure. Those who resign from political life often express criticism towards the Municipal Council; they consider it tedious and many complain of having little influence.

Notes Towards a Mental Breakdown : det teknologiska traumat i J.G. Ballards The Atrocity Exhibition

This study examinates technology's traumatic impact on the male subject in The Atrocity Exhibition by J.G. Ballard. In my analysis I show how the protagonist uses a fetischistic strategy in order to make sense of the trauma that technology embeds. Paradoxically it proves to be the agent of his trauma, but also functions as his shield. The machine is thus in a position of the hinge, the point in a structural system that both enables and deconstruct the system.

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