Dust, our smallest common denominator                                                                                                                                                                 Charlotta Lindvall ABSTRACT  I find it fascinating to know that we are all made of the same material as the stars and that everything is connected to each other and in a constant movement and transformation, a recycle of material. We are all made of stardust. In fact all life is sprung out of dust.In my essay I investigate the dust and ask the question if there are any traces in the dust. I look at the history of the dust and how it has affected us and our world through the decades. What does this small and airy but oh so unappreciated dust tell us? Why do we want to get rid of it? Is it possible to find a sense of belonging in the big context by investigating the dust and its origin and could I transform such a low material as dust into something magic that makes people reflect on our origin and belonging and how everything is connected? In my work I use dust as a material and in the essay I compare my work with other artists who have worked with dust as a material.Dust is everywhere because its source is from everything.

StoraEnso decided in year 2002 to build a pulp mill in the province of Guangxi, southernChina, and also establish eucalyptus plantations to provide it with raw material. By 2010StoraEnso controls about 90 000 of planned 120 000 ha, out of 75 000 ha is already plantedwith Eucalyptus.By using better genetic material, improve the tending, selecting the sites more careful and byusing a proper fertilization regime StoraEnso hopes to increase the mean annual incrementfrom today?s 25 m3/ha, on bark, to 35 m3/ha. This study is one part in this work to increase themean annual increment in the plantation.This master thesis is the forth in a series, that has followed up a fertilization trial that startedin spring 2006 when the trial was laid out and treatments decided. The aim with the trial is toexamine the production potential of Eucalyptus urophylla in Guangxi, southern China.

Syftet med denna konsumtionsuppsats a?r att underso?ka vilka effekter ho?gla?sning av barnlitteratur har fo?r barnet. Vi har studerat forskning som bero?r hur la?rarens och fo?ra?ldrarnas ho?gla?sning sker och vilken pa?verkan det har pa? barnets la?sutveckling. La?sning som en del av elevers spra?kliga fo?rma?ga har o?ver tid fo?rsa?mrats i svenska skolor.

Abstract This degree project examines how much carbon dioxide that emits during the construction phase of a road project. This is to make it possible to compare how the amount of carbon dioxide differentiates between traditional road construction and Swepave construction, which is PEAB?s alternative way to design roads. To make the comparison a calculation tool has been produced. To compare the amount of carbon dioxide emissions a reference project was needed.

The biogas plant Kungsängens gård, owned by Uppsala Vatten och Avfall AB, produces biogas and biomanure from organic household waste, food processing waste and slaughterhouse waste. In year 2012, 4.4 million Nm3 of biogas were produced from 25 200 tons of waste. Before digestion all substrate is sanitized by pasteurization at 70°C in order to kill pathogens. Another method, integrated thermophilic sanitation (ITS), is of interest in order to decrease the energy demand. The method implies that the substrate is sanitized during ten hours in the digestion chamber, where the temperature is 52°C.

Vid va?rderingar anva?nds ofta den hedoniska prismodellen fo?r att ra?kna ut och uppskatta bostadspriser. Modellen bygger pa? en bostads egenskaper, sa? kallade va?rdepa?verkande faktorer direkt knutna till objektet, och det a?r en sammanva?gning av priserna pa? varje egenskap som sedan utgo?r det uppskattade priset pa? bostaden. Genom att granska tidigare forskning i form av litteratur och rapporter underso?kte vi dels hur den hedoniska modellen a?r uppbyggd, vilka faktorer som inkluderas samt varfo?r, men ocksa? hur psykologiska faktorer och mo?nster pa?verkar ma?nniskor och deras uppfattning av miljo?er.

The biogas plant Kungsängens gård, owned by Uppsala Vatten och Avfall AB, produces biogas and biomanure from organic household waste, food processing waste and slaughterhouse waste. In year 2012, 4.4 million Nm3 of biogas were produced from 25 200 tons of waste. Before digestion all substrate is sanitized by one hour?s pasteurization at 70°C in order to kill pathogens. Another method, integrated thermophilic sanitation (ITS), is of interest in order to decrease the energy demand.

Syftet med v?r kvalitativa studie var att unders?ka hur medarbetare som arbetar hybrid inom techbranschen upplever psykologisk trygghet. Mer ing?ende unders?ktes vilka ledaregenskaper som var att f?redra samt hur organisationen kan framkalla en mer naturlig social interaktion i arbetsgrupper n?r delar av arbetet ?r p? distans. V?r teoretiska referensram utgick fr?n tv? ledarskapsteorier; det transformativa ledarskapet respektive det autentiska ledarskapet, vilket b?da har p?visats i tidigare studier ha en p?verkan p? en arbetsgrupps psykologiska trygghet.

This study was made in an attempt to give the forest research centre Mógilsá a producedtetratherm map and a better understanding of how topography and temperature influencethe growth of two tree species. The digital tetratherm map model, covering the northernpart of Iceland, was developed to investigate the correlation between tetratherm and thegrowth of Picea sitchensis and Larix (sukaczewii + sibirica). The study confirms theusefulness of digital terrain models in providing data for a lot of different factors and forthe tetratherm model. Hopefully will this tetratherm map be used in future studies.Secondly, investigations were made correlating the growth of the two species againsttopographic factors representing height above sea level, distance to the sea, slope andtopex. Thirdly, investigations were made comparing the aspect and the ground shape tothe growth.The growth rate of Larix had strong significant correlations to the tetratherm and thedistance to the sea- factors.

The projects objective is to find an alternative method of heating (the current method being via electric heating) the sewage treatment plant on the island Utö in Stockholm?s archipelago in order to reduce the energy consumption and ultimately the cost for heating the plant. The project is given by ?Skärgårdsstiftelsen? (The Archipelago Foundation) and is a part of the larger EU-project ?Green Islands?.A model for the plants total heating demand is established in order to get a good perception of how much money can be saved using alternative heating methods. The heating demand model gives an annual heating demand of approximately 32 500 kWh and a maximum heating power demand of around 24,7 kW.

Aluminium sulphate (Al2(SO4)3) is usually added during the drinking water treatment processin order to precipitate organic and inorganic material, resulting in aluminium-based drinkingwater treatment residual sludge (WTR). Since 2003 Swedish law no longer permits WTR tobe deposited in lakes, and there is an interest to explore the possibility to utilize WTR as soilamendment. The aim of this study was to examine the effects of WTR application on cropgrowth and concentrations of macronutrients and trace elements (including micronutrients andpotential toxic elements). A greenhouse pot experiment was conducted with three soils; a clayloam rich in phosphorous (P), a loamy sand rich in P, and a silty loam with a low soil Pconcentration, and two crop species Italian ryegrass (Lolium multiflorum Lam. cv.

Problematisk skolfr?nvaro ?r ett v?xande problem, b?de i Sverige och internationellt. H?g fr?nvaro resulterar i l?gre m?luppfyllelse, ?kar sv?righeterna att i vuxenlivet komma in p? arbetsmarknaden, samt ?kar risken f?r exempelvis missbruk, kriminalitet och psykiska besv?r. Forskning inom omr?det skolfr?nvaro har tidigare fr?mst fokuserat p? riskfaktorer och konsekvenser av fr?nvaro, samt behandlingsmetoder n?r skolfr?nvaron ?r ?ngestrelaterad. Detta har genererat ett i viss m?n individinriktat perspektiv.

Brominated flame retardants (BFRs) has for many years been used in products to reduce their flammability, mainly in electronic products, textiles and construction materials. In 2003, Sweden imported 300 tons of brominated flame retardants. Leakage of these compounds has polluted natural environments. Fishes has shown increased contents of these substances, especially fat fish, since brominated flame retardants tends to accumulate in fatty tissues. They are also regarded as persistent and that gives them the ability to travel long distances. What also is really scary is that increased levels of brominated flame retardants have been detected in human breast milk. The knowledge of the brominated flame retardants is limited and not so much research has been done in this field. There are many reasons though, to keep the research going. Partly their structural resemblance to well-known toxics as PCB, but also their ability to accumulate in biological systems and enrich in food chains. In which way they affect humans we really don?t know yet.

Stump wood was used between 1850 and 1950 for production of tar and as firewood. In the 1950s the use decreased because of the introduction of the cheap fossil oil. In the 1970s stump wood became an interesting issue again as a raw material for the pulp industry. Stump lifting has today become a possible source for bioenergy. The objectives with this study were to investigate the productivity of stump lifting and stump extraction, and to analyse the economy.

Detta examensarbete har bedrivits på Scania i Södertälje hos gruppen för bärande chassi, RTCB. Uppgiften har varit att utvärdera möjligheterna att införa bladfjädrar i komposit på framaxel med 7.5-8 tons axeltryck. Redan under 80-talet bedrevs ett utvecklingsprojekt på Scania med kompositfjädrar. 1990 lades det projektet ned främst för att det inte fanns någon lämplig serieproducent till kompositfjädrar, men även till följd av vissa problem med slagkänslighet i materialet och att det under den här perioden bedrevs många utvecklingsprojekt på Scania. Sedan mitten på 90-talet finns det i USA en serieproducent av kompositfjädrar till tunga lastbilar på axeltryck av 6.5 ton, som bland annat levererar till några av de stora lastbilsmärkena på den Amerikanska marknaden.