The aim of the study was to map the extent of Fe, Cu, Pb, As, Zn and S contamination in the area surrounding the Nasa silver mine. The mine operated between 1635 and 1810 with some prospecting performed in 1889, and has become infamous for the gruesome ways that the indigenous people were treated during the early years of operation. This study tested three hypotheses through a geochemical survey: 1) sulfide oxidation is still active in the abandoned mine, 2) the soil downslope of the mine is contaminated by mine drainage, and 3) the stream downslope of the mine is affected in the same way. All three hypotheses were valid, as the results showed that still, >200 years after mining operations ceased, signs of the historical mining are clearly visible in the surrounding environment. Acidic conditions were discovered in surface waters close to the waste rock piles, which indicates active sulfide oxidation.

Flustret is a restaurant and an entertainment place situated by Svandammen in Uppsala. It all began in 1842 as a café serving coffee, tea, chocolate and pastry. During the years the building has had numbers of different owners. The owners of today are running Flustret in a same friendly spirit that has been characteristic from the beginning. The buldings history is now approaching an age of 165 years. Throughout the years different historical layers have been placed on top of each other, leaving a layer of patches.

I det här arbetet vill vi ta reda på hur historiska spelfilmer förhåller sig till historiemedvetande. Det vi främst fokuserar på är hur högstadieelever relaterar till historisk spelfilm och hur deras historiemedvetande påverkas av den audiovisuella historieförmedlingen i skolan, i avsikt att framställa en matris för hur undervisning med hjälp av film ska ske. Ytterligare ett inslag i denna uppsats utgörs av en redogörelse kring hur man praktiskt går till väga när man arbetar med film i undervisningssammanhang. För att uppfylla syftet har vi använt oss av en kvalitativ metod med semistrukturerade intervjuer. Idag konkurrerar skolans kunskapsmonopol med populärkulturen.

The importance of energy- and environmental issues has increased, and the work towards reducing carbon dioxide emissions plays a major part. The European Union has set up goals for the membership countries to work towards this to happen. The carbon dioxide emissions in Sweden have been reduced the last few years, but there is still a lot to do. About 30 per cent of Sweden?s carbon dioxide emissions generate from energy usage related to housing, this is why the housing sector is of interest to examine.

The viscosity of air buildings is a hot topic within the construction performers, which the industry feel they have too little knowledge about. This study is mainly aimed against air density in apartment buildings and airflow measurement. The study consists of a theoretical reference, educational visit, interviews and a survey conducted among construction workers at Magistratshagen in Linkoping.Earlier requirement in terms of air leakage through the climate screen was removed and today there are only energy requirement for a dwelling in Boverkets Building Regulations. The difference between a passive and a typical air tight construction is that the passive house have a maximum requirement of 0.3 l /s m2 of air leakage through the building climate screen. The requirement imposed on passive houses is to minimize the supply of power and energy for heating the building.Air tight constructions have heavy demands on the performance and accuracy of everyone involved with the project. The client must specify their requirements and also be prepared to pay for any additional costs. The architect and building planners have to design the building with regard to air tightness. Finally, the construction workers are required to do a careful work in order to get all the connections in the building air tight.The study suggests that an air tight building is a closed system where no forced ventilation exists. There are no reasons not to build too tight as long as there is a functioning ventilation. In this study the authors ask themselves how an air tight building changes over time. No theoretical information has been found on these changes, but the respondents assume that air density decreases with time. The deterioration is mainly assumed to be caused by construction materials changes over time. The study shows that construction workers knowledge of air tight construction is mixed, which they themselves admit in the survey..

Tax revenue is crucial in order for states to survive. States vary a lot in terms of tax revenue however, and different explanations are frequently debated among political scientists. Recently, scholars have argued that the variations in tax revenue among European states today can largely be explained by their ability to collect information about the citizens and their belongings during the early modern period (1450-1800). States that were early in acquiring this information in so called cadasters, could use it in order to collect tax. This fiscal capacity thereafter sustained in a path dependent manner.

The Swedish commercial real estate market is in the current situation globally affected and is actively interacting with the rental and capital markets through international tenants and investors who are setting new demands on the property owners. The European Union has set new requirements as well in purpose of reducing humanity?s negative effect on the climate and therefore the international real estate market has introduced Green Building-certificates in order to decrease the real estate industry?s environmental impact.Certificated buildings with low energy consumption are a more common sight in Sweden these days. The development, however, could go even faster if there was not certain difficulties between property owners and tenants. Previous research has revealed that tenants do not always have knowledge about, or may have access to the economic benefits that a green building can provide.

Company X develops a laboratory information system (LIS) called System Y. The informationsystem has a two-tier database architecture consisting of a production database and a historicaldatabase. A database constitutes the backbone of a IS, which makes the design of the databasevery important. A poorly designed database can cause major problems within an organization.The two databases in System Y are poorly modeled, particularly the historical database. Thecause of the poor modeling was unclear concepts.

The purpose of the study is to investigate the possible effects of an unstable ventilation system and its influence on energy use and thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of the climate systems, it becomes more challenging to control the system and the risk of unstable control increases. No previous studies about what affect an unstable system can have on energy use and thermal comfort have been found.The report is based on several tests were the controlling variable has been increased until the system becomes unstable. Two different types of unstable systems have been investigated.

The purpose of the study is to investigate the possible effects of an unstable ventilation system and its influence on energy use and thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of the climate systems, it becomes more challenging to control the system and the risk of unstable control increases. No previous studies about what affect an unstable system can have on energy use and thermal comfort have been found.The report is based on several tests were the controlling variable has been increased until the system becomes unstable. Two different types of unstable systems have been investigated.

The subject for this thesis is to examine the portrayal of the local farmer in four different museums in Scania. The purpose is to examine these two questions: 1. Which narrative and museal strategies are used in the portrayal of the local farmer by the local history societies? 2. How do the actors of the local societies relate to the living conditions and hierarchies of the rural society of Scania? The source material consists of guided tours and text material from the museums. The theoretical fields consists of history culture, use of history, historical narrative, museology and rural science act as our theoretical fields. Peter Aronsson, Anna Eskilsson and Maria Bjo?rkroth act as our main theoretical framework. Our research presents two central discourses in the portrayal of the local farmer.

The history of Banu Umayya has since the collapse of the caliphate occupied a major part in Islamic historiography. The present thesis analyses the presentation of the Umayyads in Ibn Khaldun?s al-Muqaddima and its relation to previous historical traditions. The thesis examines the social and intellectual context in which Ibn Khaldun stood and how it is represented in his historiography, while also providing an overview of the various socio-political, intellectual and historiographical developments in Islam. The theoretical perspectives are based on the concept of agency, examining the intellectual room for manoeuvre that the historian disposed of while composing the works.

The purpose of this essay is to evaluate how the big changes in prices are effecting pigproduction. My calculations show how much there will be left for interests and amortisation. I?ve chosen not to calculate the costs of buildings. The condition from the beginning is a production of pork with 10.000 pigs per year. Instead of buying piglets, I?ve calculated on breeding them and for that purpose I will need 440 sows. I?ve investigated the working hours and given examples of how to decries these. My conclusion is that with the prices we have to day, pork production is a hard business..

The construction and real estate industry represents a significant part of Sweden's total impact on the environment and mainly affects the following national environmental objectives: reduced climate impact, a good built environment and a non-toxic environment. By establishing internal rules, companies within the industry can reduce their environmental impact. SMT (AB Sandvik Materials Technology), a part of the industrial group Sandvik AB, has set a target that during 2014 develop a guiding document with special consider to the environmental impact during construction of office buildings, that they establish at the Swedish regional capital Sandviken, for both internal and external tenants. This study therefore aims to clarify which environmental aspects that the construction and real estate sector mainly are responsible for, and therefore should be part of a guiding document for a company for establishing office buildings, and to present arguments regarding the use of such a document. The study is based on literature studies and personal contact with other companies, in the form of e-mail conversations and a telephone interview.

The aim of this report was to investigate the economy of passive houses. The work was focused on economy in total and on the economy of different components such as windows, insulation, heat exchanger and the air tightness of the climate shell. No attention was paid on the comfort factor or to the impacts on the environment.Two houses, aspiring to be passive were chosen; A big one and a small one. Hence, comparisons considering the size of the building have been possible to do as well.The comparisons were made by calculating ?break even? between two concepts; passive and BBR- concept.