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638 Uppsatser om Carbon formation - Sida 28 av 43

??Auktorisation och ackreditering inom Försvarsmakten : En studie i nyttan av en standardiserad process för att hantera informationssäkerhet

???Information Technology is an essential part of the society today, not least in large ???organisations dealing with sensitive information. An example of such an organisation is the Swedish Armed Forces which indeed is in the need of ways to ensure information security in their Information Technology systems. The means which is used is an authorisation and accreditation process.All Information Technology systems go through a life cycle which includes realisation, usage, development and liquidation. In the Swedish Armed Forces the lifecycle is an authorisation process.

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.

Utsikten : Hållbara uppvärmningsalternativ för vandrarhemmet på Finnhamn

Finnhamn is a small group of islands in the Stockholm archipelago. At Stora Jolpan, the biggest island, there is a hostel. The main building was built in 1915 and is called Utsikten. The purpose of this project is to on behalf of the Archipelago Foundation (Skärgårdsstiftelsen) find alternative systems that can replace the existing heating system of Utsikten (an oil-fired boiler and electricity heaters) to a system with renewable energy. The alternative system that this project focuses on is a system of solar collectors combined with a wood chip boiler.

Resultatet av Formatet- En kvantitativ studie om butiksformats påverkan på en konsuments beteende och attityd

Today's consumer society has led to never-ending choices in terms of brands, products and prices in an endless variety of shops. The retail industry is a very complex industry that includes many different types of sales channels and many different types of products. A consequence of this trend is that brand owners today face difficulties in understanding how their products are being evaluated and difficulties in knowing which final cause that make a consumer willing to by their product is hard to figure out. The industry is very diversified, which means that for a company to really understand their position and their role on the market it requires that the company put a lot of effort and also a lot of money in the process of trying to figure it out. We will with this paper try to explain a small piece of that understanding and we hope to get results, which contribute to the further research in this area.

Individuell tillväxt och substratval hos en lokalt differentierad population av Asellus aquaticus

Local differentiation may occur during a short period of time and is part of the formation of new species. The isopod Asellus aquaticus is an example of a species in which local adaptation has occurred during a short period of time. An establishment of stonewort (Chara spp.) vegetation in Lake Tåkern (in the 2000) resulted in two different Asellus ecotypes; a lighter pigmented, smaller one that lives among stoneworts grazing periphytic algae, and a darker, larger ecotype that feeds on decaying leaves in reed (Phragmites australis vegetation. The purpose of this study was to examine whether there are differences in growth between ecotypes, depending on whether the food was periphytic algae or leaves, and to study the choice of substrates between the two food types. For the study, animals from both habitats were brought in from Lake Tåkern to the laboratory.

Återvinning av industriell restvärme som värdeskapande process : En fallstudie på SSAB EMEA i Borlänge

The industrial sector accounts for a large share of greenhouse gas emissions. To reduce its negative impact on the environment is crucial in the quest for a sustainable future. In discussions of the industrial sector's impact on the environment guidelines have been highlighted as a tool to assist the industries in their efforts to change the relationship between the consumption of energy and production. This by improving energy efficiency and a shift to the best available technology. During the past 30 years the steel industry has reduced its energy consumption per ton of steel produced by 50 percent.

Prion infection of ovine cell culture with a natural Swedish scrapie isolate from 1986

Scrapie is an infectious neurologic disease in sheep caused by prions, corresponding to transmissible spongiform encephalopathies (TSEs) in other species. The prion is presumably constituted of PrPSc, the misfolded form of the normal endogenous prion protein, PrPC, which is found in practically all cells in the body. PrPSc can induce a conformational change in PrPC and misfold it as an imprint of itself; this is how prions amplify and spread. The process of conformational change is poorly understood and there might exist intermediate forms between PrPC and PrPSc. Bioassay using mice has traditionally been the golden standard in prion studies but is limited by cost and time.

COP15 - Jakten efter ett ambitiöst och globalt klimatavtal. -Vad motiverar Danmark att verka för ambitiösa bindande klimatmål?

Until recently the Danish government was hesitant about whether investments in climate and energy policies were the right strategy for Denmark. Today the Danish government argues that during the forthcoming climate conference in Copenhagen in 2009 (COP15), the world's countries must agree upon ambitious climate objectives. Denmark is together with EU-27 aiming at an ambitious climate agreement. This thesis intends to contribute with an understanding of why Denmark, both politically and economically, invests profound resources into committing the world's countries to a climate agreement. The study uses both a neoliberal institutionalism and a constructivist theory in analyzing the Danish engagement.

Allmänna lämplighetsvillkor vid fastighetsbildning: En rättsfallsstudie

Denna rapport syftar till att utreda och klargöra de allmänna lämplighetsvillkoren vid fastighetsbildning (som finns beskrivna i 3 kap. 1 § fastighetsbildningslagen) och hur denna paragraf ska tolkas vid lämplighetsprövning.Detta har gjorts genom en rättsfallsstudie, där fokus lagts på hur paragrafen har tolkats i rättspraxis. Rättsfallsstudien har sedan kompletterats med propositionsanalyser och litteraturstudier. I uppsatsen har de 58 rättsfall som legat till grund för rättsfallsstudien redovisats för sig för att sedan analyseras och tolkas.Slutsatserna av arbetet presenteras i form av riktlinjer för vad som ska beaktas vid lämplighetsprövning. Riktlinjerna bygger på observerade tolkningar i rättspraxis och är menade att underlätta tolkningen av paragrafen.

Kvicksilver i skogsmark

I mer än hälften av Sveriges sjöar innehåller gädda en kvicksilverhalt som övergår Food and Agriculture Organization?s (FAO) rekommendationer. Det kvicksilver som finns lagrat i svensk skogsmark är ett resultat av antropogent nedfall. Studier visar att kvicksilver utlakas vid skogsbruksåtgärder på hela skogsmarken som en följd av förhöjd rörlighet av dissolved organic carbon (DOC). En ökad metylering av kvicksilver sker vid vattenmättade, syrefattiga förhållanden där det finns tillgång till organiskt material.

Kritik, vad innebär det? : En studie som kartlägger kvinnors upplevelser av kritik på arbetsplatsen

Syftet med studien är att skapa förståelse för hur kvinnor på kvinnodominerade arbetsplatser upplever kritik. Studien kommer att vara en fältstudie vari man granskar kvinnor som är verksamma inom förskolan, då tidigare forskning visat på en klar majoritet av kvinnor inom denna yrkeskår.Avsikten med studien är inte att uppnå någon objektiv sanning av verkligheten, dock avser denna studie tolka eventuella fenomen som rör ämnet, samt skapa en förståelse för individens syn på begreppet.Informanterna har valts ut strategiskt, vidare präglas informanternas deltagande av självselektion. Man kommer inte att ta hänsyn till andra variabler än kön vad gäller urvalet.Teorier som studien vilar på är den symboliska interaktionismen där bland annat dess syn på rationalitet behandlas. Vidare tas Johan Asplunds teori om social responsivitet i beaktning och avslutningsvis Erving Goffmans teori om identitetsskapande.De slutsatser som kan dras i och med denna studie är att relationerna mellan individerna i en grupp verkar ha stor betydelse för hur man upplever kritik. För att undvika missförstånd kring det valda ämnet verkar allmän mening råda att "definitionen av situationen" är något man bör ta i beaktande, detta då kritik till en början upplevs som någonting negativt..

Ackumulation av CO2 och CH4 i istäckta boreala sjöar : Hur förändras ackumulationen i sjöar påverkade av avverkning jämfört med referenssjöar?

The aim of this report was to quantify the accumulation of carbon dioxide (CO2) and methane (CH4) in ice-covered lakes in winter (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four boreal lakes (two affected by clearcutting and two untreated reference lakes) located in Västerbottens inland in spring. The lakes were found to accumulate on average 91, 55, and 84 mgCm-2d-1 during winters 2012-2013, 2013-2014, and 2014-2015, mostly originating from CO2. The concentrations of DIC (autumn and spring) were higher in the affected clear-cut lakes compared to reference lakes for all years, including the reference year (2012-2013) before clear-cutting. No such difference was found for CH4 or the ratio DIC:CH4.

Lost in place : on place theory and landscape architecture

Place is on the one hand a commonsense everyday word with diversely connotative meanings, and on the other a contested concept with different interpretations across a broad range of academic disciplines and discourses. This thesis researches theories of place and their implications for the theory and design practice of landscape architecture. Responding to problems of insufficient theoretical grounding and inconsistent use of the concept of place within the discipline presently, it argues the need for a theory of place better articulated in relation to landscape architecture. It seeks to contribute to such theory formation by drawing on ideas from related disciplines ? tracing diverse understandings of place beyond the commonsense meanings of the word and into the deeper reaches of place theory as tools to explain physical, social and spiritual aspects of the environment, and human relationships with it.

Corporate Social Responsibility - Alla företag har ett klimatavtryck, det är bäst vi lägger oss ner och dör!

Sustainability work is something that is emphasized more and more. Corporate Social Responsibility, CSR, is discussed and the question of how much responsibility companies should really take is frequently in the news. Companies tend to ask themselves how much responsibility they should take. CSR is a common concept of companies environmental and social work and a concept we tend to see here and there in our modern society. CSR includes companies? social responsibilities, both in terms of carbon footprint, working conditions, social responsibility and more.

Svaveldosering av biopanna : En utvärdering av doseringen med svavelgranuler för att minska utsläpp av kolmonoxid från biopannan hos Arvika Fjärrvärme

Detta arbete utfördes i syfte att analysera och utvärdera effekterna av att dosera svavel till förbränningen i en biopanna. En utrustning för detta ändamål installerades till biopannan vid fjärrvärmeverket i Arvika för att få bukt med höga halter av kolmonoxid i rökgaserna. Analysen har genomförts med avseende på hur väl svaveldoseringen uppfyller sitt tilltänkta syfte men även på eventuella bieffekter. Korrosionsrisker, halter av oförbränt svavel i rökgaser, rökgaskondensat, flyg- och bottenaska samt vad som sker kemiskt i förbränningsprocessen vid tillsats av svavel har studerats. Driftrapporter från biopannan analyserades parallellt med en informationshämtning i form av en litteraturstudie och kontakt med sakkunniga personer för att svara på ställda frågor.

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