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10152 Uppsatser om Environmental analysis - Sida 56 av 677

SAMMANS?TTNING AV MAKROALGER I SVENSKA ?LGR?S?NGAR eDNA sp?rning och klimatf?r?ndringar

The aim of my bachelor?s thesis is to investigate, through a literature review, changes in the distribution of filamentous algae as well as the general species composition of macroalgae and diatoms in Swedish eelgrass meadows. I have also studied the possibility of tracking these algae and diatoms in eelgrass meadows using eDNA methodology. The focus has been on linking these changes to climate change factors such as eutrophication, temperature increase, and anthropogenic emissions, and how these affect the health of eelgrass meadows and their ecosystem services, such as a carbon sink and biodiversity support. The results show that filamentous algae have increased markedly in coverage in Swedish coastal areas between 1980 and 2021, especially in sheltered bays, indicating that altered environmental conditions favor these fast-growing species. Genetic tracking using eDNA demonstrated that there are functional primers for many species, particularly among brown algae and red algae, whereas green algae require more specific primers due to greater genetic variation.

En studie om miljöklassningssystemet CEEQUAL : Civil Engineering Environmental Quality Assessment and Award Scheme

Syftet med examensarbetet är att främja den hållbara utvecklingen i anläggningssektorn. Målet med rapporten är att visa hur miljöklassningssystemet CEEQUAL kan förbättras samt hur användningen kan främja hållbar utveckling i mark och anläggningsprojekt i Sverige. CEEQUAL är ett miljöklassningssystem inom infrastruktur och anläggning som har utvecklats i Storbritannien av Institution of Civil Engineers. I examensarbetet har följande frågeställningar undersökts: Hur fungerar CEEQUAL i praktiken? Vad är den svenska erfarenheten från användningen av CEEQUAL? Hur kan anläggningssektorn förbättra miljö/hållbarhetsarbetet genom miljöklassning med CEEQUAL? Hur kan man förbättra miljöklassningssystemet CEEQUAL? Frågorna har besvarats genom metoderna litteraturstudie och dokumentanalys men även genom intervjuer med olika aktörer inom anläggningsbranschen. Denna rapport innehåller en kort sammanfattning av vad hållbar utveckling betyder och en fördjupning inom miljöklasscertifieringssystemet CEEQUAL samt dess användning inom anläggnings- och infrastrukturprojekt. En jämförelse mellan CEEQUAL, de 16 nationella miljömålen och Kretsloppsrådets mål har också utförts för att se om de behandlar samma miljöområden. En certifiering sker i flera olika steg. En certifiering genomförs av en utbildad assessor som bedömer och ger poäng på svaren av frågorna som återfinns i CEEQUAL:s manual.

Lantbruket som energiproducent : tekniska, ekonomiska och miljömässiga förutsättningar för fjärrvärmeproduktion med lokalt skogsbränsle

A third party access to district heating networks has been proposed in Sweden, to increase the competition on the district heating market. Such third party access could create opportunities for the agricultural sector as an energy producer. This study describes the technical, economical and environmental prerequisites for a farmer cluster to build and run a heating plant, fueled with local wood fuel. The heating plant in the described scenario is 8 MW and will supply a village of 1000 houses, and is fueled with wood chips exclusively. Supplying a heating plant with fuel puts high demands on the logistics, since there need to be a continuous flow of fuel. In the scenario, wood residues from felling and thinning is stored in stacks in the forest, and a few times a year chipped and transported to a storage area at the heating plant. In the study, an estimation of the profitability has been made by estimating the cost of the investment, personnel, operating and maintenance costs and costs for the fuel and ash handling.

Svenskt och norskt barnavårdsarbete : en jämförande studie av socialtjänstens konkreta barnavårdsarbete

This essay aims to examine and compare Swedish and Norwegian social work with children. It is a comparative study between two social welfare offices, in districts with similar population and problems, one located in Stockholm and one in Oslo. The main questions were; how is the work organized and carried out, what type of help and assistance is available and what kind of discretion and powers do the social workers have. In our essay we used qualitative methods mostly based on interviews, vignette questionnaires and documents, but also written research. In our analysis we used modern organisation theory and street level bureaucracy to seek explanations.The two welfare offices have similarities and differences.

Vattenapeteorin: Paradigmskifte eller pseudovetenskap?

The Aquatic Ape theory was first formulated by Alister Hardy in year 1960. All from the beginning the theory has been criticized, ridiculed, ignored and a source to strong feelings in the anthropological community. The purpose of this essay is to investigate why the Aquatic Ape theory is so controversial and why it is understood so differently by scientists. After interviews with Swedish scientists and the general community, and after reading of anthropological books, I have tried to show that the aquatic ape-coldness depends on it challenging nature against the anthropological paradigm, which describes human beings as strong, hunting creatures who can live in any environment. The Aquatic Ape theory - on the other hand - picks out one of all these environments and says: "here has our evolution occurred: we have been aquatic apes".

EU i nyheterna : En diskursanalys om EU och EU:s anseende i det svenska medieutbudet

The purpose of this essay is to analyze the EU discourse in the Swedish media. The questions that the analysis seeks to answer are; what image of EU is portrayed in the Swedish media? To which degree does the EU discourse fulfill media?s ?news values?? And what are the potential effects of the discourse on EU?s reputation? After several demarcations, I chose 8 articles form Sweden?s four largest newspapers to base the analysis on.    The theoretical and methodical structure behind this analysis is the theories and practices of Fairclough?s critical discourse analysis. Added to the theoretical structure are also theories about reputation and theories about news values. The method used in the analysis is a modified version of Fairclough?s three-dimensional model of critical discourse analysis.

Energieffektivisering i sambandmed renovering : ? Analysmodell för energibesparande åtgärderutifrån ett företagsekonomiskt perspektiv

Rising energy prices and higher energy demands have led to an increased focus on energy efficiency, in particular in the real estate business, where high potential for energy savings exists. Within the next few years, buildings that were constructed in the sixties and seventies will be in need of renovation. One of the challenges of these renovations will be to improve energy efficiency. A real estate company that is facing this challenge is Uppsalahem AB, based in the city of Uppsala, Sweden. This study focused on analyzing energy efficiency measures when renovating old buildings.

Bilden av Afrika och dess historia : en diskursanalytisk studie av ett biblioteks böcker om Afrikas historia, utifrån omslag, baksides- och innersidestexter

The purpose of this master's thesis is to examine how a Swedish public library's collection of books on African history looks like, who the writers are and how Africa and its history areportrayed. The focus of the analysis is on the front and back covers and in some cases on theinformation texts inside the books. The chosen library is the city library of Umeå. The 15books examined were found on the shelf classified as Kp ? the classification for African history according to the Swedish SAB-classification system.

Vindpark Vänern : Fundamentteknik och Logistik

An analysis of a specific application of anaerobic wastewater treatment at a pulp and board mill, Stora Enso Skoghall, was carried out. A literature study was done and effluent wastewater from CTMP pulp production was analyzed. The analysis consisted of a broad constituent analysis and an anaerobic treatment trial. Results from these test where used to calculate the treatment effectiveness and resulting energy potential at the mill.The literature study and constituent analysis showed that toxicity of the water to be treated, due to wood extractives and sulphur content, was of concern. Detoxification chemicals targeting these constituents where used in the anaerobic treatment trial.

?H?LLBAR MIGRATION?? En kritisk diskursanalys av Europeiska unionens reglering av asylansvar

This bachelor?s thesis aims to examine how the ?New Pact on Migration and Asylum? construct the discourse on ?sustainable migration? and ?efficiency? in the European Union. The new jurisprudence concerning migration and asylum in the European Union seeks to establish a more ?fair, efficient and sustainable migration and asylum system?. To analyze the discourses, a critical discourse analysis is applied to the former asylum regulation, Dublin regulation III, a revised and withdrawn proposal, Dublin regulation IV, and future legislation.

Diskursiva handlingar och resurser i talkshows med flerpartssamtal : En samtalsanalys av tv-programmet Skavlan

This paper examines the function of narrative discourse in television talk shows. Basing our analysis on five episodes of the Swedish talk show Skavlan, we illustrate how narratives are initiated and elaborated by the participants of the show. The analysis shows that the institutional roles are challanged and that the roles vary between the host ant the guests. The analysis also shows that when guests introduce and elaborate stories they use the same discursive actions and resources as the host. When participants enter an actvie role in their storytelling the hos takes a more restrained role in which he lets the the conversation evolve spontaneously.

Kartering av markföroreningar inom Skutskärs Bruk samt utvärdering av spridningsrisker enligt Naturvårdsverkets MIFO fas 2

With the prospect of future construction on the Skutskär Pulp Mill property, Stora Enso Fine Paper has initiated an investigation of soil contaminants and a risk assessment of these contaminants. A soil and groundwater investigation has therefore been conducted on an open area of about 16 000 square meters, situated between the current wood room and digester house. To be able to integrate this study into an investigation for the whole industrial property, the study has been carried out as a phase 2 study according to the Swedish Environmental Protection Agency?s Methods of Inventories of Contaminated sites (MIFO).The site investigation has involved soil and groundwater sampling, together with the analysis of heavy metals and organic contaminants. The degree of hazard posed by the contaminants, the level of contamination, the potential for migration of the contaminants, as well as the degree to which protection of human health and the environment is required in the area, have been weighed together for an overall risk assessment of the area with regard to human health and the environment.The investigated area was built up by filling in the coastal waters.

"en labyrint av vägar" : en kvantitativ och språkfilosofisk studie av taggar och taggstruktur i Stockholms stadsbiblioteks folksonomi

The purpose of this study is to perform both a quantitative and language philosophical analysis of the folksono-my and the tags in the Stockholm public library catalogue, which together with the Umeå university folksonomy, and the folksonomy of the Norrköping public library are the only library folksonomies in Sweden.The purpose of the first part of the study is to perform an analysis of the linguistical structure of the tags in the folksonomy. To do this a quantitative analysis has been conducted to grammatically categorize and evaluate tags using a method based on Louise Spiteri?s article ?The structure and form of folksonomy tags: the road to the public library catalogue? and the SAO guidelines. This part of the analysis aims to answer questions like: what characteristics do the tags in the folksonomy have and in what ways do they separate themselves from subject headings in a controlled vocabulary? Tags were here categorized according to grammatical properties like parts of speech and their social and private characteristics.

Sänkta sjöars inverkan på ytvatten i Västerbottens kustland : Samband mellan sänkningsnivåer och vattenkemi i sjöar på sulfidrika sedimentjordar

Lake lowering in sulphide-rich areas is currently a major environmental impact for surface water. This study focuses on whether there is a relationship between a gradient of lake lowering and surface water impacts in areas of sulphide-rich sediments, in order to better understand their contribution of heavy metals and sulfuric acid. Also, is it a reasonable method to use the reduced lake area in order to quantify the gradient? The survey was conducted by collecting water samples from reference lakes and lowered lakes from south to north in coastal areas within the county of Västerbotten. Water samples were then analyzed for TOC, pH, conductivity, anions, base cations, alkalinity, acidity, sulfate, Al, Cd, Fe, Mn, Cu, Zn and Pb.

Entreprenöriellt lärande : En diskursanalys ? Verklighet, projektarbete, mottagare

This is a study of the phenomenon enterprise education in a Swedish school. Enterprise education is a rather new concept in Swedish schools, and it has yet to be clearly defined and sufficiently studied. In order to investigate the various aspects of the education properly an analysis of the language used by its proponents needs to be performed. The authors have used discourse analysis from a perspective provided by Laclau and Mouffe. This is for the purpose of determining how the phenomenon is expressed by four teachers in the school mentioned previously.

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