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534 Uppsatser om Stone forming substances - Sida 27 av 36
Klassifikationens roll på www: en studie av webbmiljöns påverkan på klassifikationens principer och funktioner
Principles that guide how a classification system should be structured have existed for more than a century. Traditional classification principles can be of great value for the design of classification schemes directories on the web. However, there are differences between the library context in which these principles originated, and the web. This thesis aims at investigating how changes in the context of classification affect the application of traditional principles of classification on the web. Another purpose is to see what implications this has for the design of classification schemes on the web.
Konstlandskap : ett projekt om en konsthall på Bergdala gård, Kivik
Abstract
? What is an exhibition hall?
? How do you create tension between art and
nature?
? Why should an exhibition hall be situated in the
country
side; would that add to the experience?
? What are the conditions of exhibiting
contemporary art?
These are some of the questions I first asked
myself when I came to work with this project on
an exhibition hall outside Kivik, Österlen. These
questions brought me to new places, meetings and
ideas.
The team working actively to realize this
project, calls it ?Art by the Sea?. The team has
been working with the project since 2001 .
Development of a method for determination of pesticide residues in honey using liquid chromatography tandem mass spectrometry
Honey is a product that may contain pesticide residues due to contamination from bees pollinating various plants as well as elimination of vermin inside the hive. Different methods are needed for analysis of pesticides, since the term includes a wide range of different substances. National Food Administration lacks a validated method for determination and quantification of pesticides in honey using liquid chromatography tandem mass spectrometry, LC-MS/MS. The technique is especially important in analysis of polar and non-volatile pesticides, where gas chromatography is not functioning optimally. After investigating what pesticides could be found in honey produced in Sweden, a number of four pesticides suitable for analysis with LC-MS/MS was compiled; boscalid, impidacloprid, tau-fluvalinate and thiacloprid.
Där skollagen slutar tar förståelsen vid : En undersökning av referenter i skollagen och hur de förstås av tolkande lärare i gymnasiet
This essay consists of a heuristic analysis of referents in the Swedish educational act, leaning on the methodological guidelines of discourse analysis. The overall aim of the essay has been to analyse in what way language in the educational act works as guidelines and law in relation to teachers? work. To correspond to this aim an openly structured questionnaire has been used, providing an empirical view of how teachers understand certain words, or referents, in the educational act. This empirical data has then been shaped to a spectrum view of the definitions of the referents showing a number of deductable facts, including the significance of the apparent use of institutional and professional language, which then have been viewed from two theoretical perspectives.
Evaluation of a selective media for the detection of gram-positive bacteria in leg ulcers and pressure wounds
Hard-to-heal ulcers are resource intensive due to the fact that they are difficult to treat and especially vulnerable to bacterial invasion. The bacterial culture contaminating these wounds often consist of several different bacterial organisms that originate from endogenous sources. Necrotic material in ischemic ulcers provide nutrition which support bacterial reproduction, increasing the risk of infection. Determining causative pathogen in infected ulcers proves to be difficult when culturing swab samples, however Staphylococcus aureus and hemolytic streptococci generally act as primary pathogens. The aim of the study was to investigate if the detection rate increased for S. aureus and hemolytic streptococci when culturing swab samples from ulcers on Columbia CNA; a media selective for gram-positive bacteria.
Statens kontroll eller individens frihet : En ideologianalys av statens och individens roll rörande Sveriges och Portugals narkotikalagstiftningar
The European Union has created a common plan regarding narcotics use and abuse within the European member states. The aim here is to reduce the supply and demand for drugs among the citizens of the Union. However, the opinions on how to achieve these goals greatly differ among member states. The range of attitudes varies from the strictly restrictive attitudes of countries such as Sweden, to the complete decriminalization of personal possession of all narcotic substances in Portugal. The purpose of this paper is therefore to study the underlying attitudes and approaches that these two countries have, and hopefully to give some light to how come there is this big difference in legal frameworks regarding a rather delicate political question.
Är kämpagravarna på Gotland ett tecken på tidig statsbildning? : ett försök till tolkning av gravfynd, stengrundshus, stensträngar och fornborgar
Jag har gjort en jämförande studie mellan utvecklingen i Danmark och utvecklingen på Gotland under romersk järnålder. Som underlag har jag framförallt använt Lotte Hedeagers avhandling Danmarks jernalder ? Mellem stamme og stat (Hedeager 1992) och Kerstin Cassels redovisning av det arkeologiska källmaterialet från Gotland i hennes avhandling Från grav till gård ? romersk järnålder på Gotland (Cassel 1998). Syftet med studien var att undersöka om Hedeagers slutsats att det etablerades en centralmakt med territoriell kontroll, en tidig stat, i Danmark redan i övergången mellan äldre och yngre romersk järnålder, även skulle gå att dra vad gäller Gotland baserat på det gotländska källmaterialet, och i så fall om detta kunde förklara uppkomsten av stengrundsbebyggelse och fornborgar. Jag har jämfört det arkeologiska källmaterialet från Danmark och Gotland avseende gravfynd och offerfynd, bebyggelseutveckling och landskapsutnyttjande samt vapenoffer och försvarsanläggningar.
Målgrupp alla och dess behov - folkbibliotekets flummiga men underbara uppdrag
The subject for this Master's thesis is the mission of the public library concerning target group everybody. Control documents, traditions, norms and trends influence how this is interpreted and how the library's service is being formed. The often very abstract terms used to describe the public library's mission makes it open for different interpretations. We are of the opinion that the public library's service should be formed to reflect the needs, interests, and priorities of the community it services, in order to be more attractive and useful.The aim of our study is to examine how the public librarians define and adjust to the mission to satisfy all citizens needs. Why do they choose to concentrate on certain target groups? And what does that show of how the public libraries reflect their communities? Our investigation includes examining six activities aimed at a certain target group and the six public libraries that carried these out.
Analys av vattenkvalitet i ett kommunalt badhus
Bath has been a part of human history for a long time. Today bathing/swimming inmunicipal pools is for people of all ages and it is possible to take swimming courses,exercise or enjoy recreation. The municipal indoor pool of Hogdalen in Sweden wasbuild in the sixties and has had problems with high levels of heterotrophic bacteria. Thefacility has two larger pools, one adventure park for young kids, two smaller bath tubsand a jacuzzi. To improve water quality UV light and coal filter were installed inOctober 2009 to the already existing purification system.
Socialtjänstens biståndsbeslut om boendestöd : En undersökning av hur beslut om boendestöd utformas och förslag till kvalitetsutveckling
Målet med denna uppsats är att bidra till kvalitetsutveckling gällande behovsbedömning och beslutsformulering vid handläggning enligt socialtjänstlagen. Syftet med uppsatsen är att granska handläggningsprocessen gällande boendestödsbeslut. Med utgångspunkt i denna granskning vill vi komma fram till förslag på förbättringsområden. Förslagen ska vara förenliga med krav från och behov hos lagstiftaren, den enskilde, socialtjänsten/kommunen och biståndshandläggaren. Beslut om boendestöd är idag tidsbegränsade, oftast till ett år, utan att den enskilde egentligen ansökt om det.
Äggstockscysta hos mjölkkor
The presence of cystic ovarian follicles represents an important ovarian dysfunction and is a major cause of reproductive failure in dairy cattle. A cystic ovarian follicle is a persistent follicular-like structure on one or both of the ovaries. It is at least 2,5cm in diameter and it has to persist for at least ten days while a corpus luteum is missing. There are two kinds of cystic ovarian follicles, those who have a progesterone production and those who have not. A clear definition for this condition is lacking, probably because the heterogeneity of the clinical signs and the complexity of the disorder.
Analys av system för rening av avloppsvatten i en anaerob membranbioreaktor
The most common way to treat wastewater in Sweden today is by a combination of an activated sludge process and a chemical treatment. These processes are not very energy efficient and may not be the most environmentally friendly. That is why it is interesting to evaluate new alternative methods to see if they can be less harmful to the environment and help to a lower resource consumption. New techniques are tested in a pilot installation at Hammarby Sjöstad, Sjöstadsverket. To be able to evaluate these techniques in a wide perspective system analyses are conducted where different impacts can be considered, advantages and disadvantages in the systems.Five system structures for water treatment have been constructed in Matlab/Simulink in this study.
Optimering av sotningsfrekvens i biobränsleeldad CFB-panna : panna 5, Mälarenergi AB, Västerås
During the past 30 years the fuels for energy production in heating and power plants
have changed. Fossil fuels have decreased in usage whereas bio fuels in Sweden
have increased with 60% since the 1970's. Different fuels affects combustion and the
release of various substances and particles into the flue gas. This is caused by the
diverse components and chemical structures of fossil fuels and bio fuels. When the
flue gas leave the combustion chamber and enters the path to the chimney particles
in the gas are being transported out of the combustion chamber.
Utveckling av en LC-MS-metod för analys av gamma-hydroxibutyrat, gamma-butyrolakton, 1,4-butandiol, amfetamin och metadon
In this project a LC-MS-method for the analysis of gamma-hydroxybutyrate, gamma-butyrolactone, 1,4-butanediol, amphetamine and methadone was developed.Initially, the efficiency of the ionisation of the analytes was evaluated with respect to the ionisation technique (ESI, APCI and APPI) and the composition of the mobile phase. In the next step a number of different columns was tested in order to find the one with the greatest potential for separation of the substances in question. Using the selected column, the separation was optimised by means of experimental design and the software The Unscrambler 7.8. The parameters studied were the flow rate, the column temperature and the mobile phase composition. The response variables were the resolution between the target compounds and the retention time of the last eluting compound.These experiments showed that, in order to obtain the best ionisation, the mobile phase should consist of 5 mM formic acid in water and acetonitrile.
Social Software Roadmap : Implementering av sociala verktyg internt i organisationer
Today more and more companies are looking out to adopt a new generation intranet, a social intranet where all employees can engage to express themselves and share information. There are large expectations on these new services, which have the opportunity to create high business value if used actively and qualitatively. However, there is a large challenge in knowing how to best implement these services in an organization in order to achieve this. This paper has investigated how an implementation should be made by defining obstacles for the implementation and adoption, discussing how they could be overcome, investigating what incentives could be used to foster usage and finding common success factors for an implementation.By a qualitative research method, consisting of five case studies and two focus area interviews we found a number of steps that must be followed for an implementation to be successful. First the conditions of the organization must be investigated in order to see whether or not social tools are suitable.