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528 Uppsatser om Concentrations difficulty - Sida 12 av 36

Böklåda med torv på rastgårdsytan i ekologisk slaktsvinsproduktion : effekter på beteende och emission av kväve (NH3 och N2O)

In organic animal production, synthetic amino acids are not allowed. Therefore, a higher level of crude protein is needed in the diet to pigs, which lead to more nitrogen (N) excreted in the faeces and urine. N can be emitted to the air in the form of e.g. ammonia (NH3), which contributes to eutrophication and acidification and as nitrous oxide (N2O), which is a very potent greenhouse gas. The emission of N can be reduced by e.g.

Corporate Social Responsibility, vara eller inte vara ? En undersökning om CSR förekommer hos svenska modeföretag och modekonsumenter.

The main purpose is to illuminate how a company links certain values to its brand in an effort to achieve a competitive position. We have done this by studying the government owned company Svenska Spel and its entrance on the netpokermarket. With Corporate Social Responsibility as a guidance for the company they wanted to offer Swedish gamblers an alternative to the, often morally dubious, international actors. Our thesis has taken an internal (corporate) as well as an external (consumer) perspective on the result of this strive. Our conclusions are that although Svenska Spel is successfully integrating social responsibility into their netpokerbusiness, they are facing a difficulty in making the consumer fully appreciate it.

Näringsbehov hos moderlösa föl

No summary of feeding recommendations for foals exists today, which is why this subject was chosen for a literature study. The aim of this study was to describe nutrient requirements of healthy full term foals and how the feeding should be designed to raise foals if they lose their mother. Mare milk composition changes during lactation to meet the requirements of the suckling foal. Foals are born with enzymes in their small intestine and the concentrations of these follow the consumption patterns of the foal. Microbes colonizes the gut as the foal becomes older and these changes cause foal diarrhea.

Avena Sativa - En hyperackumulator? : En studie av havres kadmiumupptag

The aim of our research was to investigate if oat is capable of extracting cadmium to such extent that it is usable in decontaminating polluted soils. We grew oat in a hydroponic culture during 28 days in a controlled environment and a total of 30 plants were used. The nutrient solutions were contaminated with cadmium of ten different concentrations after seven days. After harvesting the plants, the roots were separated from the shoots, placed in separate containers and then turned to ashes. The cadmium content was measured three times per sample in an atomic absorption spectrometer.Our results indicate that the ability of oat to extract cadmium from a solution is linearly dependent of the cadmium concentration of the solution.

Jämförelse mellan MultiScat och konventionell beräkning av intensiteter till koncentrationer vid analys med röntgenflourescensspektrometri

In this master thesis work, a new method called MultiScat, is compared with the conventional method with alfa-correction, for computing concentrations from intensities in X-ray spectrometric analysis. The conventional model is a linear model, which only takes the photoelectric effect into consideration. It doesn't consider Rayleigh and Compton scattering even though it has a great impact on the measured intensities. Here MultiScat differs a lot. MultiScat is based on a solution of the Boltzmann transport equation.

Svårigheter och utmaningar i religionsundervisningen : En religionsdidaktisk studie med fokus på lärares uppfattningar kring svårigheter och utmaningar i religionsundervisningen

The purpose of this essay is to describe what difficulties and challenges are for teachers of religious education at upper secondary school. The essay is written from a teacher's perspective, where the focus is on the teacher's perceptions of the difficulties and challenges of teaching religious education. The methodology for the collection of information was done through qualitative interviews. Previous research shows that one of the challenges in the teaching profession is the interpretation of the curriculum, and then which of those is correct. The essay shows that the biggest challenges that teachers experience in the subject of religious education is the students' prejudice against different religious groups, and also the difficulty of getting students to understand the purpose of what is being taught.

Kemiskt försvar mot havstulpanskolonisering i marina svampdjur

The purpose of this project is to analyze and study the absorption of the substances ivermectin, spinosad and barettin to hydrophobic and hydrophilic surfaces, and to analyze and study if the barnacle larva are effected when they try to settle on the treated surface.Incubation tests with barnacle larva in Petri dishes were performed as well as absorption tests on hydrophobic and hydrophilic surfaces which were tested with ellipsometry. To determine the surface thickness.The barnacles were placed in hydrophobic as well as hydrophilic Petri dishes that had been incubated with ivermectin, spinosad or barettin. After four to six days the larva was counted to analyze the settling. From the results conclusions could be drawn about the adsorption abilities of the substances to the different surfaces.The barnacles were placed in hydrophobic as well as hydrophilic Petri dishes that had been incubated with ivermectin, spinosad or barettin. After four to six days the larva was counted to analyze the settling.

Utveckling av protokoll för bearbetning av

This assignment has been performed at location and commissioned by AttenditAB in Jönköping. The task has been to develop a client/server system to accessdata stored in SQL databases where the client application is developed to run onregular cellular telephones. The importance has been to develop as reliable mobilecommunication as possible. The functionality that is demanded upon the mobilecommunication is:? Secured for future versions? Interoperability? Data should not be bugged, modified or disappearunnoticed? Resource efficientWe have achieved these demands by developing our own protocol that is on top ofthe TCP protocol.

Kalkyler i vården: en översikt och ett praktikfall

This thesis investigates management accounting systems in a Swedish health care environment. Through a qualitative case study of an activity-based cost accounting system that was introduced in 1994 at S:t Görans Sjukhus, a large Stockholm hospital, the following questions are addressed: What benefits can an activity-based cost accounting system offer the Swedish health care providers? What are the potential problems impeding the implementation of such a system? Main findings: an activity-based cost accounting system can improve the understanding of where costs are generated in the production processes. Comparisons between alternative production processes are improved, and the data may serve as a basis for internal pricing measures. Concerning the second question, difficulty in reconciliating the principles of economic control with the culture present in a hospital is identified as the main obstacle to a new management accounting system..

Att förändra och förändras med tecken : En kvalitativ studie om uppleveser av teckenekonomi

The token economy program, which is a method for behaviour modification, has been used worldwide for different groups within different settings in order to vhange behaviour.Research has found the token economy program to be effective. However, research is limited to quantitative and experimental studies, and Swedish research in this field is brief. Nevertheless, the program is used in several institutions n Sweden. A qualitative study in Swedish settings could therefore be useful. The purpose of this paper is to examine the experiences of a token economy program using qualitative interviews.

Anhörig : Socialsekreterares erfarenheter av att arbeta med anhöriga till missbrukare

The aim of this study was to examine and analyze the experiences which social workers have of working with relatives of substance abusers. This included examining how they work with relatives who are in need of care and support and how the social workers identify their needs. We have also investigated how well informed the social workers are when it comes to approaches to helping relatives of substance abusers. A qualitative method has been used in this study in order to analyze the experiences of the social workers from a phenomenological point of view. This study was based on six semi-structured interviews.

Professionella ex inom missbruksvården : En kvalitativ studie om vägen från drogmissbruk och kriminalitet till en karriär inom behandling

The aim of this study was to examine how "Professional Exes", individuals that have exited a drug abuse and a criminal career and further are educated to work in the addiction field, transformed their identity and which factors that were significant in the process. The result of this study are based on semi-structured interviews with five Professional Exes and shows which specific factors in the process that contributed to the transformation and what kind of difficulties and barriers that existed during the process. The study suggests that, among other things, identification with others exes and the 12 Step Program are significant factors in the process. Furthermore, the study suggests that a difficulty in the transformation is that residues from the previous identity such as a poor self-esteem occurred in some situations..

Livscykelbaserad miljövärdering av en ny kontorsbyggnad : En jämförande studie mellan två analysmetoder

This Master?s Thesis aims to illustrate in what ways the two Swedish environmental assessment tools, the Environmental Load Profile and EcoEffect differ and if performed valuations gives different results and environmental goals.The built urban environment causes about half the environmental loading in Sweden. The society?s ambition towards sustainable development has resulted in demands reducing the environmental load. One way to accomplish this change is with the assistance of tools for environmental assessment of the built environment.

In Der Fuehrer?s Face : Hur populärkultur kan nyttjas för politisk propaganda

This essay is about the origin, planning and establishment of the European Space Research Organisation's (ESRO) sounding rocket base Esrange outside Kiruna in Northern Sweden. Three main questions are examined. First I show there were not just scientific and technical but also political, economical as well as military reasons to build a European rocket base. Second, I scrutinize the reasons to choose Northern Sweden as the location for the rocket base. As it turns out, the main reasons were the favourable location of Northern Sweden within the aurora oval zone, the proximity of the Kiruna Geophysical Observatory, and the possibility to use a large, although not quite uninhabited, area where the launched rockets could crash.

Finngruvan - Uppföljning av vattenkvalitet, analys avavrinning och recipienter i området efter gruvdrift

This thesis raises the problem with acid mine drainage around the closed mine Finngruvan.The purpose of the investigation was to compare metal content in surface water in the areaand its catchments between year 2010 and 2003, also to make calculation of specific runoffand metal load, furthermore determine the recipients in the area. Surface water samplingwhere preformed at the same place as 2003 and also at a few other places of interest. Adigital elevation file were used in GIS to calculate the area of the watersheds in the region,observations in the field where also made. The collected data were used to make comparisons,calculations and conclusions. The result showed that the surface water 2010 had somewhatlower metal concentrations.

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