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636 Uppsatser om Carbon formation - Sida 31 av 43

Effekter av "Billigaste väg" för Stora Enso Skogs transportverksamhet :

Transportation constitutes a large part of the forest industry's raw material costs. Transport also contributes a significant proportion of the carbon dioxide emissions. In order to reduce both the cost and environmental impact different types of decision support are required. These, in turn, require extensive information about the road network and correct information on road path selection and transport distances. In the development of national road data base for forestry (SNVDB) a road selection application has been included.

Att vara, eller icke vara en reflekterande praktiker. : En undersökning om några förskolepedagogers didaktiska överväganden i den mångkulturella lärandemiljöns kontext.

The purpose of this paper is to investigate and to analyse didactic considerations and decisions made by pre-school teachers in the context of a multi-cultural pedagogical environment.The basic theoretical perspective is social constructivism, but notions from Donald A. Schön and John Dewey's theories of thinking and reflection have also informed the study; even Hans Lorentz' definition of a multi-cultural pedagogical environment has been employed as an analytic tool.The empirical study consists of a qualitative field study at a pre-school, where participatory observation and a group interview have been used in order to collect data. Those who participated were teachers at the pre-school.The results of the study, when analysed in accordance with the method, shows mainly three things. First of all that the teachers at the pre-school, in their didactic considerations, make use of the following methods of knowledge formation: knowledge-in-practice, reflection-in-practice, reflection on practice, reflection on knowledge-in-practice, and reflection on reflection-in-practice. Secondly, that no reflection particularly on the learning conditions in a multi-cultural pedagogical environment takes place.

Förändrade resemönster i Gävleborgs län : En sammanställning av kostnader och klimatpåverkan vid tjänsteresor samt analys av sociala effekter vid ett skifte mot videkonferens i en organisation

The world we live in becomes more globalized as a result of new communication media. Communication occurs over greater distances which leads to increased travel. In the report AR5, by IPCC, it is showed that the human impact of climate change is clear and that something has to be done. Therefore its very important to change the human impact. A part of it is to change the way we travel within the service which leads to the purpose of the thesis.

Samband mellan luftföroreningar och klimatfaktorer - en statistisk unersökning

That air pollutants of different kind has impact on our climate can hardly haveavoided anyone during the past years environment explosion in the media. But howis it actually with the reverse, i. e. the climate's impact on air pollutants? The aimwith our degree thesis is to try to find out if different weather factors, statisticallyseen, promotes atmospheric pollutants and particles in the air and vice versa.We got access to data on air pollutants and weather factors that was registeredduring year 2007 at Femmanhusets air pollutant and weather station in Gothenburg.In order to do a statistical investigation of these data, and to be able to analyze if itoccurs relations of various kind, we used the statistics program SPSS.

De medeltida djurfigurernas idévärld : med kyrkomålaren Johannes Rosenrods exemplifiering

In the medieval ruling catholic time the church walls was swarmed with programs of pictures with religious motives there the animal figures rich symbolics was significant first and foremost for the illiterate. Principally the inspiration comes from the antiquitys pagan world of fables and bestiary Christian world of symbols with the bible as the essential source. The essay describes six of the most common animal symbols who occur; dragon, the sneak in the Paradise, mouth of hell, lion, the fox as a preacher and the devil.To attain to a discussion about why just animals are used as symbols for human characteristics in the medieval church art instead for human beings as it's actually be about, I have studied bestiary and other literature about medieval churchpainting to get an understanding about the history of ideas about the thoughts of the time and about symbolics of animals, worth and how the Christianity have had an influence on the pictures.I have used Johannes Rosenrods church pictures from Tensta church in Uppland from 1437 as an exemplification but also mentioned other unknown painters who used similar animal codes and motives.It's plausible that the purpose of the animal figures was both religious and political, which was used by both the spiritual and the worldly authority so they could keep their dominance over the peasant. The figures was simple to read and remember and they made a deep impression on the people together with the sermon. The churchgoer get so to speak a sound- and image experience, a medieval reality who impress their world of ideas.When it's about the artistic formation of religious expression and characteristics it was undoubtedly a great advantage for the artists to use an animal code like a schemata.

Ett vetande för den moderna skolan : U-teknologin som vetandeobjekt i spelet mellan vetenskapliga, politiska och fackliga texter under perioden 1957-1975

I denna undersökning riktas intresset mot att förstå och belysa sätt att tänka kring utbildningsplanering, undervisningens organisering och utbildningens relevans och betydelse i samtiden och framtiden, och detta under en period från 1957 till 1975. Mer specifikt närmar sig undersökningen den satsning på undervisningsteknologi och utbildningsteknologi som görs inom utbildningssystemet under denna period. I detta närmande används en diskursiv textanalytisk metod, Michel Foucaults arkeologiska angreppssätt, för att söka belysa periodens utbildningsmässiga tänkande, såsom detta tar sig uttryck i relationen mellan utsagor producerade av politiska, fackliga och vetenskapliga aktörer engagerade i utbildning ? och mer specifikt i grundskolans utveckling. Jag använder sedan en kritiskt diskursiv teoribildning, med huvudvikten lagd vid Foucaults genealogiska inriktning, för att skapa en förståelse för vad som i denna undersökning berörs som ett u-teknologiskt vetandeobjekt.

Cooking banana farming system in rural Uganda : a comparison between agroforestry systems and non agroforestry systems

The demand for food, feed, fibre and fuel has increased in Uganda over the past 50 years due to population growth. Recurring extreme climate events such as drought and flooding, in combination with large-scale land degradation, have led to declining crop yields. Lack of equipment, money and socio-economic issues has contributed to low yields. However, the soils in Uganda have the potential to produce much higher yields than they do today. This study, which was carried out in April-June 2013 in Kkingo District, south-east Uganda, examined the effects of agroforestry on yield of cooking bananas in small-holder farming systems. Six farms practising agroforestry and six farms with no agroforestry, which were chosen in cooperation with the NGO Vi Agroforestry, were compared.

En statistisk kartläggning av dimma för Arlanda flygplats

Dimma är ett komplext småskaligt väderfenomen som gäckat meteorologerna ända sedan väderprognosernas start och varit en bidragande orsak till att många mist livet inte minst inom flyget. Än idag är prognostisering av dimma mycket svårt i synnerhet strålningsdimma. Studier (COST, 2007) har visat att för att en modell ska kunna fånga formation av dimma krävs det i vissa fall att den skall kunna lösa upp inversionsskikt på 10m.Därtill uppgår osäkerheten i många fall för numeriska modeller vid fastställande av sikten i dimma till 50 %. Då kan en statistisk kartläggning specifikt för varje dimtyp utgöra ett bra komplement till modellerna för att få en uppfattning om exempelvis sikten i dimman. I den här studien användes observationer gjorda med en halvtimmes mellanrum från Arlanda under perioden 1993-07-01 ? 2009-11-03.I denna kartläggning identifierades de fyra dimtyperna: strålningsdimma, nederbördsdimma, advektionsdimma samt dimma orsakad av en sänkning av molnbasen till marknivå (molndimma).

Teknisk undersökning : Rötgaskammare för småskalig biogasproduktion

Biogas mainly consists of methane and carbon dioxide, where methane is theenergy-rich gas, and is naturally created when organic matter breaks down in absenceof oxygen, also known as anaerobic digestion. A biogas plant re-creates the anaerobicconditions inside a digester where the organic substrate is fed into and digests toproduce biogas. The gas is then used to produce energy by combustion and can beseen as a completely renewable fuel.Today, energy from biogas is used primarily by major stakeholders such asmunicipalities and thus the plants become very large with high investment- andconstruction costs. There are currently few small plants in Sweden, even though thepotential for agriculture and medium-sized to smaller farms to become self-sufficientin terms of electricity and heat is great. Farms have a natural stock of digestibleorganic material in form of manure or crops for example, which are constantlyavailable.

INVERKAN AV HAVSF?RSURNING P? PROTONERBARA ORGANISKA F?RORENINGARAS EKOTOXICITET

Resulting from anthropogenic carbon dioxide emissions, average surface seawater pH is estimated to decline from today's approximately 8.05 to between 7.78 and 8.03 towards 2100. For ionisable organic pollutants, changes in pH can lead to a change in the degree of ionisation, which could influence the ecotoxicity of a compound by altering its bioavailability. In this study, potential changes in ecotoxicity of ionisable organic compounds resulting from ocean acidification are examined. This is achieved partly by conducting a literature review, analysing existing literature that investigates this relationship. Potential changes are also evaluated by examining marine ecotoxicity data for ionisable organic compounds on the watch list pursuant to Directive 2008/105/EC of the European Parliament and of the Council, as well as on the list of priority substances according to the 2022 proposal for amending the Water Framework Directive (2000/60/EC).

Ascophyllym Nodosum ? påverkan på det orala placket och dess proteaser

Syfte: Syftet med denna studie var att studera huruvida algen Ascophyllum Nodosum (AN) utövar någon effekt på proteasaktivitet i oralt plack, samt om effekten finns i algen från början eller om man måste inta den oralt för att få en systemisk effekt. En förhöjd proteasaktivitet har förknippats med gingivit och parodontit. Vi förväntar oss en minskad proteasaktivitet hos försökspersonerna, och därmed en minskad risk för gingivit och parodontit, efter intag av AN under en månads tid. Material och metod: Ett in vitro med en pilotstudie, och ett in vivo försök utfördes. I in vitro försöket användes pulveriserat och upplöst Ascophyllum Nodosum. I in vitro studien deltog 5 personer i åldersgruppen 20 till 30 år.

Some people get it. Others are assholes. Kontradiskurs, subversiv potential, hegemonisk makt och performativ marginalitet utifrån tre nivåer av skräpkultur.

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.

Gränser : En studie av den estetisk-praktiska miljöns pedagogisk-terapeutiska grundegenskaper utgående från två verksamheter: Hagastiftelsens verkstäder och Kristofferskolans bokbinderi

Borderlands. A study of the aesthetic-practical environment, its pedagogical and therapeutical properties based on the outline of two practices/institutions: the workshops at Hagastiftelsen and the bookbindery at the Kristofferschool. The perspective on education, pedagogy and therapy taken is an existential one where the main aims of an educational-therapeutic intervention is to support biographical development and integrity. In the process action research in my own bookbinding workshop as well as hermeneutic research at the workshops at Hagastiftelsen where adults with autism and other neuropsychological disorders work have been the sources of primary empirical data. Secondary sources are patient-histories written by Oliver Sacks as well as autobiographical narratives of some adults with autism.

Spårtaxisystem i Uppsala

An increased awareness about the global warming has created a demand for more information on how the climate is affected by different activities.This master thesis was initiated by Tricorona, a Swedish company that offers its customers analysis and calculation of their climate impact. Tricorona also supplies climate neutralisation with CERs, in accordance with the Kyoto protocol and controlled by the UN. This work demands updated emission factors for greenhouse gases. An emission factor gives information about the greenhouse gasintensity of a service or a product [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating, hotels, taxis, food and materials affect the climate and how emission factors for these areas can be calculated.This was done by reviewing and comparing different studies and by interviewing experts. The information was evaluated and recommendations on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials.

Information till mjölkföretaget : vilken information behövs och hur bör den utformas när gården ska ta investeringsbeslut?

The fast developments in information and data technology during the recent years have accentuated the need for the business manager to interpret and act on information from the surrounding environment. Today we know little about what information is really used in the unique decision-making. Further, little is known about how information should be designed to fit people with a more intuitive approach to interpreting information. This study is therefore about the difference between peoples approach to interpreting information and how information should be designed to fit those with a more intuitive approach to interpreting information. The application is made to dairy farms in Sweden. The literature review describes the strategic leadership, the decision-making process and the intuitive and the analytic thinking.

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