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534 Uppsatser om Stone forming substances - Sida 6 av 36
Uppvärmning och miljöpåverkan : -en jämförelse mellan fjärrvärme och bergvärme i villa
Many of todays studies show that district heating is one of the betteralternatives as heating source because of its low environmental load.The energy source is often leftovers from other processes producing energy or waste, like garbage or chips.Electricity in combination with geothermal heating is another heating system that has increased sharply during the last years, and also this system decreases the discharges that have negative affectson the environment compared to several other heating methods.This report aims to, concentrated towards these two different heating systems, estimate the amounts of discharges they indirect cause and how the environment is affected.We have calculated the mean value for discharges of carbon dioxide, nitrogen oxide, sulphur oxide and dust generated from electrical power used in Sweden.Through interviews and research we have gained data for the same substances that district heating based on combustion of garbage and biofuel generates.We have also in cooperation with a housing company chosen a building we see representative for many of the new single-family houses built in Sweden today.Based on its shape and appearance we theoretically created three alternatives of the same house, each of them with climate screens different from each other.Together with the amounts of discharged environmental affecting substances, these houses were the base for our calculations and studies when investigating the different heating sources environmental effect.The results have thereafter been analyzed and discussed from different angles..
Duktiga tjejer läser. En studie av relationen mellan läsning och skapandet av feminina genuspositioner
The purpose of this thesis is to examine how young women create their feminine gender positions in relation to their reading. Using qualitative research methods the empirical material has been collected through so called reflexive interviews with eight young women aged 15-17. From their statements the empirical material has been divided into five themes that are important to the young women, as well as to the formulation of the problem. This constitutes the model of analysis. The analysis has been conducted through an examination of these themes from a gender theoretical perspective and through the application of theories about reading and gender.
Strong girls now and then - a comparison between strong girls in classic and modern children?s literature as : The Secret Garden and Harry Potter and the Philosopher?s Stone.
The aim with this essay is to compare strong girls in classic and modern literature and see how the differences in expectations on these girls are reflected in literature. This study is done with the aid of historical, feminist and new criticism..
Varför är Bivarödsånsvatten så brunt?
The river Bivaröd is one of the river Helgeån tributaries which has the highest and the fastest increase in water colour. The reason behind this increase is unclear but several factors have been suggested to affect this pattern. In this work, I studied the role of land use, iron and precipitation for water colour increase in river Bivaröd for the period 1976 -2011. Data from a field study along with data from SRK for river Helgeån were used for the analyses. The results showed that both water colour and iron concentration increase and that there is a strong correlation between these two variables.
Vattenkemin i Fyrisån under snösmältningen
Chemical substances are spread diffusely and uncontrollably as a result of the increased consumption of goods. REVAQ is a certification system that works to reduce the flow of hazardous substances to Swedish treatment plants and to create a sustainable nutrient recycling. According to REVAQ, the yearly accumulating rate of metals should not exceed 0.2% in soil per year. Silver and bismuth are two metals that do not fulfill this requirement. The silver concentration in sludge decreased during the last decade, however the last few years, it has leveled off.
Undersökning av steady state och utvärdering av valskraft och friktion vid kallvalsning av aluminium
The purpose with this thesis was to examine the cold rolling mill located at Högskolan Dalarna and to stabilize the rolling process, to achieve steady state. Experiments with cold rolling of an aluminium strip have given results for rolling force, friction, reduction, strip tension and strain hardening. Results show that steady state has been found for the experiments with roll force and strain hardening, and not been found for the experiments with friction and reduction. Results show that increased strip tension gives lower roll forces. The roll force equation of Stone shows comparable results with reality for dry contact with reductions up to 30 %, but starts being incomparable with higher reductions.
Omregleringen av det svenska apoteksmonopolet : Finns det teoretiskt och historiskt stöd för att regeringens mål kommer att uppfyllas?
Research Question: Does the pharmacy market seem to change in accordance with the goals stipulated by the government due to the reregulation?This leads to the following sub-questions:Does it seem like the availability of medical drugs for consumers increase?Does it seem like service for consumers get enhanced?Does it seem like the supply of services for consumers increase?Does it seem like the costs of medical drugs are maintained?Purpose: The purpose of this study is to evaluate if the trends resulting from the reregulation of the pharmacy monopoly correspond to the goals stipulated by the government.The purpose is furthermore to compare the reregulation of other Swedish markets and the reregulation of the pharmacy market in other Nordic countries in order to heed their lessons.Method: This study uses method triangulation, with a questionnaire directed to pharmacy customers forming the quantitative basis and interviews with specialists regarding the pharmacy market, forming the qualitative. The study also draws heavily on historic data regarding reregulation of Swedish markets and reregulation of the pharmacy market in other Nordic countries.Conclusions:Availability of medical drugs has increased and will presumably continue to do so. Service quality has increased somewhat and will presumably continue to do so.Supply of services has increased and it will presumably continue to do so.The cost of medical drugs will only increase if it is required in order to satisfy the other goals. .
Gemensamma åtgärder i harmoni? : En beskrivande fallstudie av regional miljöpolitisk koordination mellan nationell och internationell nivå.
The aim and scope of this study is to describe the coordination of joint efforts concerning chemicals and hazardous substances in the Baltic Sea region, between the Swedish Chemicals Agency (KemI) and the land-based pollution group of the Helsinki Commission (HELCOM LAND). Based on the description of the coordination, the second aim is to discuss the consequences for the Swedish Chemicals Agency in its policy shaping work towards a nontoxic environment. A qualitative and descriptive case study method is used for this purpose. Theories of coordination and achievement-inducing criteria for environmental goals are applied to the case. Components and related processes of coordination are applied to the descriptive part of the study, whilst the achievement-inducing criteria are applied in the discussion.
"En människa är det". En queerdidaktisk analys av Jessica Schiefauers "Pojkarna" och dess möjligheter för arbete med likabehandling i skolan
This text aims to examine how teaching in literature can contribute to the schools work with creating an antidiscriminating environment. When it comes to the Swedish schools antidiscrimination plans, this essay focuses especially on those sections that concerns pupils and student right to their own gender identity and expression.The main theories in this examination are Judith Butler?s theory on gender and performativity, queer theory defined by Fanny Ambjörnsson and theories concerning adolescent psychology with focus on the adolescent identity and it?s forming. Together with Mikhail Bakhtin?s carnival theory the text examines how Jessica Schiefauer?s novel Pojkarna (The Boys; 2012) describes a young adolescent girl?s journey to finding and forming her own gender and sexual identity.
Silver och vismut i plaster och färger : Källor till förhöjda halter i slam?
Chemical substances are spread diffusely and uncontrollably as a result of the increased consumption of goods. REVAQ is a certification system that works to reduce the flow of hazardous substances to Swedish treatment plants and to create a sustainable nutrient recycling. According to REVAQ, the yearly accumulating rate of metals should not exceed 0.2% in soil per year. Silver and bismuth are two metals that do not fulfill this requirement. The silver concentration in sludge decreased during the last decade, however the last few years, it has leveled off.
Upplevelser av att vara icke heterosexuell i arbetslivet
Forming teacher teams is currently the standard way of organizing teachers in Swedish Compulsory Schools. This is the result of a process that started in the 1970s.Traditionally the culture of teaching has been one of isolation. Once the door to the classroom is shut, what happens behind the door is up to the teacher to decide. Over the past thirty years a lot of time has been dedicated to making fundamental changes in the way teachers interact with their colleagues. Today the idea of teachers forming teams is generally accepted but still the core of a Swedish teacher?s job is that of a lone worker.
Diatermirök- Det perioperativa teamets arbetsmiljö
BackgroundDiathermy is the most commonly used surgical instrument in the surgical area today. Diathermy is used in surgery to cut and coagulate tissue. The use of diathermy releases chemical substances in to the environment in the form of diathermy smoke. Research shows that these chemical substances pose health risks to both staff and patient exposed to the smoke. To protect the interdisciplinary, perioperative team from the smoke, smoke evacuation systems can be used.ObjectiveThe purpose of the study is to highlight the work environment of the perioperative team when working with diathermy smoke.MethodThe study is meant to be implemented as an empirical descriptive sample survey.
Religionsskiftet i Skandinavien under vikingatid och medeltid i ett kvinnoperspektiv
The conversion in the Viking Age and the High Middle Agea in Scandinavia and how this affected women is discussed. Did women get a better life when the people had converted to Christianity or not. Our written sources are later than the conversion to Christianity. Instead the material culture, graves, grave goods and runic stones, can help us understand the life of women. Nordic mythology presents a contrast between faith in the Viking Age and Christianity..
Spåren efter Mesolitikum : en studie av 10 mesolitiska platser i sydöstra Sverige
The paper focus on the first people in south-east Sweden. I investigate why they moved to the north, how they adapted to a new environment, and how they used new materials. I study ten locations in my investigation, which starts with Årup in north-east Scania, and ends with Mörby in Östergöland. The survey deals with the research history concerning the Mesolithic Stone Age in southern Scandinavia, and why ethnicity, adaptability, imagination and the will of survive is so important to us human beings..
Torkningstekniker i den preoperativa handdesinfektionen - en experimentell studie
ABSTRACTIntroduction: Preoperative hand disinfection aims to prevent surgical site infections. After the preparing hand wash, drying is performed using an aseptic technique. It?s important to dry hands thoroughly in order to achieve the full effect of the alcohol based hand disinfection. Due to the lack of a evidence-based guideline on this procedure, the hand drying techniques differ among operating theatre nurses, depending on which technique seen as the most appropriate.