The present study deals with the importance of play for children's learning in preschool. The purpose is to investigate the importance of play for children's learning in preschool from a pedagogue?s perspective. The study is based on two issues: How does the pedagogue´s who were interviewed reason about the impact the play has on children's development? How does the pedagogue´s approach to make play a learning situation? The empirical data is based on semi-structured interviews with four preschool pedagogue´s.

This paper briefly summarizes Bergslagen as a bedrock province in order to give background to the genesis and presence of REE-bearing minerals (short for Rare Earth Elements) in the region. These mineralizations mainly occur along the REE-line, a line aproximately a hundred kilometers in length between Norberg in the north and Nora in the south with a width of a few kilometers. Situated in the southwest of Bergslagen it is currently one of only a few places in Sweden where REE-bearing iron oxide mineralizations are potentially economically viable for mining. Ore microscopy has been conducted in order to characterize an ore sample from Myrbacksfältet, one of few sulphide rich iron oxide mineralizations within the REE-line. Additionally, an electron microscope analysis of a sample from Stålklockan, a suspected REE-bearing mineralization also within the REE-line was confirmed by EDS (short for Energy Dispersive Spectrum) analysis.

Arbetet med denna studie gick ut på att inventera vilka metoder som använts i Dannemora gruva av Dannemora Mineral AB (DMAB) gällande skuthanteringen under jord och ovan jord samt belysa och ge förslag på hur skuthanteringen skulle kunna effektiviseras och eventuellt generera en ökad mängd färdiga produkter och tillika högre intäkter för företaget.Med en mer effektiv skuthantering med fokus på separering av gråberg och malm, både under och ovan jord, hade DMAB erhållit mer färdiga produkter och därmed högre intäkter. Uppsatsens resultat motiverar att en förstudie inleds i företaget. Tillkomsten av nya arbetsmoment innebär naturligtvis en kostnad men den torde vara liten och högst försvarlig i sammanhanget men måste utredas i den rekommenderade förstudien. Det handlar också om andra besparingsaspekter som exempelvis minskade transport- och hanteringskostnader och i förlängningen även miljöbesparing, vilka dock ej är medtagna i den här studien..

Inom (traditionell) radio finns tre olika typer av informationsbärare/kanaler nämligen tal, ljud och musik. Syftet med vårt arbete är att ta reda på vilken typ av information som bäst lämpar sig för kanalen tal respektive ljud. Detta har vi gjort genom att mäta informationsförlusten under ett lyssningstest där vi använt oss av kanalerna tal och ljud. Vi har även då vägt in faktorn av störljud/brus (auditiv information som konkurrerar med meddelandet, exempelvis ljud som uppstår vid bilkörning) och mätt vilket medie som har störst brustolerans. Resultatet visade att det fanns skillnader mellan kanalerna och olika typer av information, generellt kan dock sägas att tal hade större genomslagskraft medan ljud hade större brustolerans.Det mest centrala vi upptäckte i studien är kanalernas olika värdesatser där tal är den huvudsakliga informationsbäraren och ljudet i större grad bidrar med känsla.

The Baltic Sea is threatened by eutrophication that largely is due to nutrient leaching from farmland within the catchment area. To solve this problem the surrounding countries cooperate within various configurations such as HELCOM and the EU-financed project Baltic Compass. Poor manure management in Russia has been discussed frequently the last couple of years. A literature review of different types of reports and legal acts is the core of this degree project which has been performed in connection to two ongoing research projects financed by EU (Baltic Compass) and SIDA. It is supplemented with interviews with Swedish agricultural consultants and travel reports from two occasions when I had the opportunity to discuss with Russians active within the agricultural sector. Different hypotheses were investigated and discussed. The environmental debate in Russia is quiet and there is a widespread approach that economic profit always trumps environmental concern ? a Soviet heritage that influence the Russian agriculture considerably. The Russian legal acts on stable manure management focus mainly on sanitary questions and only secondary on nutrient leaching.

Sveriges gruvnäring har en lång historia som sträcker sig ända till medeltiden. Lika länge har det funnits behov av en reglering för utnyttjandet av dessa naturtillgångar. Regleringens syfte har varit mångfacetterat. Det har bl.a. gällt att inpassa utnyttjandet i en marknadsekonomi samt stimulera upptäckt och utnyttjande av mineraler.

In situ sekvensering är en metod som kan användas för att lokalisera differentiellt uttryck av mRNA direkt i vävnadssnitt, vilket kan ge viktiga ledtrådar om många sjukdomstillstånd. Idag förloras många av sekvenserna från in situ sekvensering på grund av det kvalitetsmått man använder för att säkerställa att sekvenser är korrekta. Det finns troligtvis möjlighet att förbättra prestandan av den nuvarande base calling-metoden eftersom att metoden är i ett tidigt utvecklingsskede. Vi har genomfört explorativ dataanalys för att undersöka förekomst av systematiska fel och korrigerat för dessa med hjälp av statistiska metoder. Vi har framförallt undersökt tre metoder för att korrigera för systematiska fel:I) Korrektion av överblödning som sker på grund avöverlappande emissionsspektra mellan fluorescenta prober.II) En sannolikhetsbaserad tolkningav intensitetsdata som resulterar i ett nytt kvalitetsmått och en alternativ klassificerare baseradpå övervakad inlärning.III) En utredning om förekomst av cykelberoende effekter, exempelvisofullständig dehybridisering av fluorescenta prober.Vi föreslår att man gör följande saker:Implementerar och utvärderar det sannolikhetsbaserade kvalitetsmåttetUtvecklar och implementerar den föreslagna klassificerarenGenomför ytterligare experiment för att påvisa eller bestrida förekomst av ofullständigdehybridisering.

I denna uppsats behandlas frågan om äganderätt till mineraler. Uppsatsens syfte är att mot bakgrund av fastighetsbegreppet utreda hur synen på äganderätt till mineraler ser ut i Sverige och om senare förarbeten medfört att frågan blivit mer oklar. Metoden är baserad på den rättsdogmatiska metoden. Tillgången till doktrin och praxis har varit starkt begränsad och utredningen är därför främst baserad på förarbeten. I uppsatsen läggs särskild vikt på principuttalanden från lagstiftaren.

Formulation and testing of a new type of chainsaw lubricantThe company Agro Oil has come up with the idea of developing an environmentally adapted chainsaw lubricant with a new unusual base fluid. A field test with a tree-harvester shows unsatisfactory low temperature properties and high wear. In this work the viscosity, price and pour point of different combinations of the given base fluid and three other base fluids have been investigated. Desired viscosity and price are determined for different formulations. The new lubricants tested show lower pour points than almost all products on the Swedish market.A test equipment has been developed to investigate the wear.

Climate changes today are mainly caused by anthropogenic activities and the increased emissions of greenhouse gases to the atmosphere and this has raised questions on how to reduce the usage of fossil fuels. Ethanol is a good alternative to conventional gas and has been used in Brazil since the 1970 ?s. In Sweden several newspapers has written about the poor working conditions on many farms thus making the Swedish company SEKAB design a certification for their ethanol to ensure that it can be considered to be a sustainable alternative.Furthermore WWF has developed a certification tool called Bonsucro in cooperation with Coca Cola, Ferrero group, BP and Shell. This is due to the fact that no global certification tool has been available up until now.

The pig industry suffers economical loss due to stillbirths, piglet mortality and low birth weight. This is due to breeding programs that have resulted in larger litters. It has been suggested that these problems are due to the metabolic state of the sow during gestation and the fact that she might not be able to supply her foetuses with enough nutrients for survival and a high and even birth weight. A lot of research has been done to investigate whether body weight and back fat thickness of the sow has any impact on her reproductive traits and if there are any special feed components that improve reproduction. Fibers and unsaturated fatty acids have a positive impact on reproductive traits as long as the sow is fed a sufficient amount of energy and protein during gestation and lactation.

This report describes honey, its origin, properties and effects on human health. Honey has been used for a long time in most civilizations and apiculture is an important activity sector in many parts of the world. The trend is an increase in honey production but a decrease in the number of beekeepers in Sweden. Honeybees live in a highly developed society with a strong hierarchy and a well organized distribution of the tasks. They visit a broad spectrum of plants and collect nectar to store it as honey.

70 % of the lakes and waters in the water district of northern Baltic Sea do not reach the requirements for good ecological status. This is mostly due to eutrophication caused by a too high deliverance of nutrients from agricultural land or effluents. Losses of particulate phosphorus through water erosion contribute to a great extent to this eutrophication. In the action plan for the water district cover crops are mentioned as a measure for reducing losses of phosphorus from arable land. This paper reviews the possible effect of cover crops in the water district and discusses what crop that would be most suitable.

This study has taken place in two nature reserves in the municipality of Uppvidinge in the Kronoberg region in southern Sweden. These have been chosen by the County Administrative Board to be part of a bigger landscape of fire affected nature, and prescribed fire has been implemented in these. The areas are called Ösjöbol and Berga fly and have been burned 2012 and 2013 respectively. Non-burned areas have been inventoried as well. Vascular plants and mineral soil have been inventoried with the Hult-Sernander-Du Rietz scale of five levels. Issues emanate from the County Administrative Board?s goals for prescribed fire: how sticks and herbs were affected, how much soil was uncovered, how the structure and fire favoured species were affected, and how deciduous trees and spruces (Picea abies) were affected. The study shows that the soil increased, as well as the fire favoured species.

The purpose of this report was to investigate how the abiotic factors (temperature, pH, nutrients, oxygen levels and water content) would affect the decomposition of oil-contaminated soil and how a variance in structured soil would affect the decomposition-rate. A minor field-study was made and soil where structured in five different ways (one was a default pile and was used as a reference). The study took place over 137 days and three samples were taken (start, middle, end) and analyzed for aromatic and aliphatic compounds. The result of this study shows that there is a significant difference between all methods for the aliphatic compounds and no significant difference for the aromatic compounds. The abiotic factors that affect decomposition vary from organism to organism, depending on what type of environment it will function the best.