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1282 Uppsatser om Matter conservation - Sida 30 av 86
Näringsretention i återskapad våtmark på betesmark : studier av en mad vid Bornsjön
It is important to construct or recreate different types of wetlands and study their retention of nutrients, since knowledge of their effectiveness in this matter is poor. In 2003 a wetland was constructed on an old meadow on the western shore of Lake Bornsjön in central Sweden. The main purpose of the wetland was to reduce the amount of phosphorus entering the lake, which is the back-up water supply for Stockholm when the city cannot obtain water from Lake Mälaren. Large areas around Lake Bornsjön consist of agricultural land and the nutrient concentrations in the inflows to the lake are usually relatively high (approx. 1 mg/l total nitrogen and 0.05-0.1 mg/l total phosphorus).
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.
Jens är het och Anja kämpar : En jämförelse av genusrepresentationen i SVT:s Sportspegeln och Lilla sportspegeln
This report is an analysis of the gender representation in Swedish sports media, a comparison between sport in public service television for adults and children. The study explores the differences between the number of male and female sports in the matter of air time and also the number of male and female appearances in the TV shows. The programs studied in this report are the Swedish SVT?s Sportspegeln and Lilla sportspegeln. When we began this analysis we were under the impression that men would be over-represented, but that representation in sports television for children would be more gender equal than the adult counterpart. The result of the analysis confirmed previous studies stating that men dominate the sports programs in Swedish public service television.
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).
Flickors och pojkars inflytande på förskolan ur ett genusperspektiv : Pedagogers erfarenheter av arbete med flickors och pojkars inflytande på förskolan
The thoughts of a common school for all children have been around since the 1800?s but was something that was introduced in Sweden first in 1962. When the curriculum for primary school came in 1980 there was a new concept, a school for all. With a school for all it was aimed that all children should have the right to participation and a common education no matter what needs they could have.During my education I have come across the concept a school for all and that is something that interested me. Today?s curricula and school laws aim to ensure that all children have the right to equal education and inclusion whatever needs you have.The purpose of this study is to find out some pedagogues? thoughts and work around the concept a school for all.
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.
Att missa målet - en studie av kommunal målstyrning ur ett demokratiperspektiv
The aim of this study is to illuminate and discuss a case of political steering, specifically Managment-By-Objectives (MBO) in Swedish municipalities, from a democratic perspective. The essay examines a discrepancy between MBO in the Swedish municipalities and democratic theory.To fulfil the aim of the study one leading politician and one leading civil servant from five municipalities have been interviewed on this matter. This material is discussed in the light of a democratic theory constructed specifically for this essay. The democratic theory consists of three main democratic values in the democratic process: debate, transparence and the ability to demand political accountability.The main conclusion is that there is a contradiction in the use of MBO and the democratic values of debate, transparence and the ability to demand political accountability. MBO has resulted in a lack of debate and transparency and furthermore, it has made it increasingly more difficult to demand political accountability..
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..
Att göra eller inte göra : Hur kontroll och nyfikenhet påverkar regelverket på Facebook
This paper is a literature study on search engine optimization (SEO) considering the leader of the search engine market: Google. There´s an introductory background description of Google and its methods of crawling the Internet and indexing the web pages, along with a brief review of the famous PageRank algorithm. The purpose of this paper is to describe the major important methods for improved rankings on Google´s result lists. These methods could be categorized as on-page methods tied to the website to be optimized or off-page methods that are external to the website such as link development. Furthermore the most common unethical methods are described, known as ?black hat?, which is the secondary purpose of the text.
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.
Människohandel för sexuella syften : Situationen i Rumänien sedan EU-inträdet
The aim of this study is to investigate the situation in Romania concerning trafficking for sexual purposes. We look at what affect the European Union has had relating to this matter, in order to conclude what a membership implies on the fight against trafficking. A gender perspective is apparent throughout the essay and new institutionalism leads us to focus on the affect of the EU, both formally and informally. Questions to be answered revolves around the EU:s strategy against trafficking, recent trends and the implementation of the strategy in Romania, formally and informally. The study has the form of a case study and is conducted through a field study in Romania.
Projektioner - subjektivitet och ansvar i gestaltandet :
With this paper my aim has been to investigate my subjectivity and responsibility as a
landscape architect and to find ways to relate to it and handle it in my work.
When I advocate a certain concept for a project, I influence the outcome, and in doing
so I take on a personal responsibility. Even though my judgement is built upon facts and
cooperation with colleagues and other consultants, I am always responsible for the part I
play and how I affect the course of action. To what extent can I advocate my view and
is it actually my responsibility to do it? How is my subjectivity part of my knowledge
and influence as a landscape architect?
I have interviewed three well known Swedish landscape architects to have their view on
the matter. Since they are all strong individuals with huge experience and influence, the
personal responsibility they bring upon themselves for their design action is as
important.
I have also used one of my own projects as a case study, analysing my design and
standpoint and my relationship to the client to illustrate how these questions emerge
even in the smallest projects.
In the last section of the investigation I have searched for clues in diverse literature.
This section is divided into three view points; the society, the profession and the
individual..
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.
Inokulmmängdens betydelse för utveckling av vetets stråbasröta orsakad Fusarium graminearum : utvärdering av ett biotest
Fusarium graminearum is one of the most important pathogens on cereals and causes major crop losses around the world. The most cultivated cereal in Sweden is winter wheat. F. graminearum produces both sexual and asexual spores for dispersal. Multiple factors affect the production of these spores.
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.