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721 Uppsatser om Biological diversity - Sida 7 av 49

De, nationen och kulturen : Skillnadsskapande i svenska geografiläroböcker 1947?2011

Education systems face a number of challenges regarding social justice, diversity, difference, and inclusion and membership for all students in the groups that schools create. This invokes questions of how well these challenges are met in curricula and teaching materials. Through discourse analysis of eight Swedish geographical textbooks, this essay aims to seek out the perspectives surrounding difference within the subject of geography. It concludes that the idea of fixed homogenous cultures as meaningfull in differentiating among people dominates throughout the latter half of the 20th century and during the last decade. In addition, it concludes that the discourse surrounding diversity in Swedish geographical teaching materials mainly has a binary liberal view of plurality focused around tolerance.

Grodsamhällen längs vattendrag på Borneo : En identifiering av habitatkaraktärer viktiga för diversitet och abundans av grodor i tropisk regnskog

The stretch from the riparian zone of a major river, through the mouth and upstream in tributaries forms a range of differing habitats. The aim of this study was to investigate the effect of these different habitats on the riparian frog community in primary rain forest in Borneo; i.e. examine whether any gradients could be demonstrated in terms of species composition, diversity and density of frogs, as well as which environmental characteristics that seem to be of most importance in forming habitats of high conservational value. A major river, Segama, and three of its tributaries were investigated. The surveys were carried out at night by searching for frogs visually and acoustically along the streams, from the shore of the Segama river and 400 metres upstream in the tributaries.

Side effects of biological control agents in agriculture : does the bacteria Bacillus amyloliquefaciens affect the earthworm Aporrectodea longa?

Pathogenic microorganisms pose a big threat towards food production. Meanwhile, negative impacts on humans and environment are seen by the use of pesticides. Biological control agents are an alternative to the use of chemical pesticides, and plant-growth promoting rhizobacteria, such as Bacillus amyloliquefaciens has been shown to have good properties as biocontrol agents. Before these bacteria can be used commercially their impact on other soil organisms has to be evaluated. This thesis looks into what biocontrol bacteria are and how they might affect earthworms.

Mekaniserad plantering med Eco-Planter i södra Sverige :

This report is a thesis work for a B.Sc. in Forestry exam at the School for Forest Engineers, SLU. The work was an assignment from Södra Skogsägarna and the aim of the work was to investigate the economical and biological output after mechanical planting with Eco-Planter compared with traditional manual planting. Eco-Planter is a tool for mechanized planting, fixed at the end of the boom on a conventional harvester. The study confirms that manual planting is less expensive under normal conditions. However, the differences between mechanized and manual planting are not that big and with technical development and/or increased labor costs together with an improved work organization the system with Eco-Planter could be competitive. The biological output, e.g. planting result and survival rate, seems to be quite good.

Musik för kommunikation och självkänsla : En studie om musikens betydelse i en flerspråkig förskolemiljö

This thesis, entitled The Headmaster and the Music, is based on interviews with four headmasters, who are all working in the Swedish compulsory school. The purpose is to investigate how they view music, both in general and as a school subject. Since the research on this topic is scarce, the study can be described as explorative.The result shows that the headmasters? personal experiences have an impact on the way they view music. Four different focus points on music in school have emerged from the material, and these represent the four very different views that each headmaster holds.

Nitrogen fixation among boreal feather mosses along a clear-cut chronosequence

The Swedish boreal forests are limited by nitrogen (N) availability. While biological N2 fixation by cyanobacteria hosted by pleurocarpous feather mosses are important sources of N input to natural boreal forest ecosystems, little is known about the patterns of N2 fixation in silvicultural systems. This study investigates the biological N2 fixation rates of two boreal feather moss species (Pleurozium schreberi and Hylocomium splendens) along a chronosequence from clear-cut to mature forest, as well as the vegetation characteristics along the chronosequence. Measurements and samples were collected from 32 forest sites that were classified into four age classes (clear-cut, pre-commercially thinned, thinned and mature forest). The sites were located near the city of Arvidsjaur in northern Sweden.

Mognad hos unga flickor : normbrytande beteende, alkoholvanor och sexuellt beteende.

The aim of this study was to examine if biological early maturing girls and girls that percieved that boys treated them as older than they actually where drank more alcohol, were more delinquent, had more romantic relationships and sexual intercourse. Our data was collected from seven schools in Sweden. Significant relationships where found between early maturation and all four dependent variables. Significant relationships could also bee seen between how girls perceived that boys treated them and alcohol use, romantic relationships and sexual intercourse. For two of our dependent measures we found week interaction effects, for girls biological maturation and there perception of how boys treated them according to there age.

Styrelsesammansättning och lönsamhet i svenska aktiebolag

In this thesis we examine the relationship between board composition and firm performance in Swedish companies. The selection of companies includes all Swedish limited liability companies, with the exception of micro enterprises, that have been active between the years of 2009-2010. We develop hypotheses based on resource dependence theory, agency theory, and the resource based view, and test these with regression analysis against collected data. Specifically, we examine the effects of board diversity, outside directorships, and CEO duality. Our findings show that none of the theories provide sufficient explanatory power of the relationship between board composition and firm performance, and that further research is required to better understand the role and effects of company boards..

Habitat diversity and composition among growing wild boar (Sus scrofa L.) populations in Sweden

The wild boar (Sus scrofa L.) has expanded across Europe and Sweden in the last decades. It is a generalist species which utilizes a variety of habitats, and its presence has been shown to have both positive and negative effects for people and the landscape they are in. The abundance and increase of wild boar has previously been shown to differ between counties in Sweden, but there have been few explanations as to why. In this study, I investigated correlations between the per capita rate of change (r) among wild boar populations in Sweden and a variety of different habitats on the county level. I also investigated if fragmentation per se or in certain habitats could be associated with the wild boar?s per capita rate of change. My results show that fragmentation/diversity per se was not correlated with wild boar r.

British Airways - en mångfaldssaga?

British Airways (BA) kritiserades på 1990-talet för att vara en diskriminerande och fördomsfull organisation som exempelvis uteslöt kvinnor och färgade från pilotstyrkan. Idag hyllas bolaget som en föregångare inom mångfaldsarbete och mångkulturalitet. I uppsatsen studerar vi dels hur långt BA har kommit i sitt mångfaldsarbete på systemnivå och på operativ nivå, dels vilka faktorer som drivit på eller hindrat mångfaldsprocessen. Vi kommer fram till att BA idag uppfyller de flesta kriterier för att kunna kallas en multikulturell och inkluderande organisation. Att BA:s mångfaldsprocess har gått snabbt beror bland annat på att hindren för mångfald främst låg på systemnivå.

Utredning om en ökad biologisk behandling av matavfall i Halmstads kommun

Environment and sustainable development are very current topics in today's society, bothnational and international. The government's bill 2004/05:150 ?Swedish environment objectives - a common commission? contains several environmental quality objectives, that in turn is divided up in smaller secondary objectives. One of the secondary objectives says: ?Latest year 2010 shall at least 35% of the food waste from households, restaurants, largescale kitchens and shops be recycled through biological treatment.

Evighetsträd

FSC (Forest Stewardship Council) is the major form of certification system in Swedish forestry today and its more than 11 million hectares are covering almost half of the total productive forest area in the country. Its regulations prescribe that at least 10 wind firm trees should be left behind after every clear cutting operation. This study have taken place on 30 recently clearcut objects in Bergslagen, Sweden, were an inventory of the standing stock have been made. The research shows that, with 90 % security, the retained trees together contain 9-13 m3sk per hectare. Pine is the dominant tree and it covers more than half the numbers of retained trees and its volume cover 65 % of the retained trees total volume. Spruce is on second place with 30 % of the retained trees, but only 21 % of the standing stock.

Mångkulturell bibliotekariekompetens - En litteraturstudie och intervjuer med bibliotekarier och chefer vid Malmö stadsbibliotek.

The title of this Master´s thesis is Multicultural librarian competence - a literature study and interwievs with librarians and managers in Malmö Public Library.Every fifth Swede is born abroad or has at least one parent who are. The migration flows of today reach out longer, there are more efficent ways of communication and travel. This has made previously ethnic homogeneous populations as the swedish more and more hetergeneous. Library services to inmigrant users started out as a specially directed activities. The political view of migration has changed over the years and the current perspective is the one of mutual integration and cultural diversity.

Skadegörelse klotter nedskräpning förbjuden : Graffitiborttagning som ikonoklasm

This essay concerns graffiti, and in particular graffiti removal regarded as iconoclasm.Graffiti is described as a visual symbol laden with both negative and positive values, and sometimes as a meaningful expression in the urban public space. One problem with graffiti as a field of study is the diversity of both the meaning of the term as well as the diversity of the phenomenon itself. Therefore I have defined the term graffiti as follows: words and images painted on public walls by a person usually in an unauthorised manner. Specific examples of graffiti and related phenomena are presented. Within the Swedish anti-graffiti discourse the pejorative term klotter (scribbling) is used to describe what I above define as graffiti.

Naturhänsyn på slutavverkade hyggen i Östergötlands län.

95% of the productive forest land in Sweden are now being exploited for forestry. The new Forestry Act of 1993 equate the goal of production and the environmental goal which means that the objective for forestry is a sustainable yield, while the Biological diversity must be preserved. Recent years results from the inventories of the Board of Forestry show declining trends in how nature conservation aspects taken into consideration at the felling sites.The aim of this study is to investigate what happends with the nature consideration taken at felling sites in the long run. 20 final fellings in the county of Östergötland were re-inventoried 7-9 years after final felling. These felling sites had previously been inventoried before final felling (P0) and one year after final felling (P1) in the inventory Polytax by the Board of Forestry.

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