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1328 Uppsatser om Laboratory materials - Sida 42 av 89
Evaluation of Ectopar for the control of the poultry red mite Dermanyssus gallinae
The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great
discomfort for the hens and effecting the production economically. Few efficient acaricides are available
and there is a need for new control methods since resistance has become a problem in some cases.
The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).
Maktbalansen mellan mannen och kvinnan i Domarboken 19
The thesis of this essay is how literary texts are selected in the teaching of Swedish in upper secondary school, and how teachers reflect upon gender in these selections. To answer the thesis question three methods have been used. Firstly interviews were held with five teachers of Swedish, which have been the primary source for the essay. In addition to the interviews, I have examined two literary anthologies used as teaching aid in the teaching of Swedish and lastly I analyzed the literature and authors that the teachers explicitly express that they use in their tutoring. The secondary sources of this thesis contain research on selections of fictional texts, literary canon and students? re-production of gender.
Textilhantverkets betydelse i Uppåkra - en studie av Uppåkra och närliggande agrarboplatser
This survey deals with textile production and how it was carried out during the late Iron Age,with main focus on a central place, Uppåkra. A comparison has been carried out betweenUppåkra and two agrarian settlements, Fosie and V. Karaby, from the nearby landscape toinvestigate whether any variation in production can be detected. The value of textiles has alsobeen investigated to determine whether a potential specialization in production may have ledto a surplus.An analytical and comparative method has been used with focus on the context of thematerial.The results show that the textile production vary at the different sites, and that a need fordifferent types of textiles has existed. At Uppåkra, the possibility to produce fine threads andtextiles existed as demonstated by the findings of small and lightweighted spindle whorls.This suggests that the production may have included both fine and coarse textiles.
Flödesekonomins dimensioner : supply chain management
It is of increasing importance to in the most effective possible way, manage and control all the transactions of raw materials, products and information that are exchanged between an organization and all its operators. These flows and the need for strategy and managing the processes of planning, implementing and control of the supply chain, has given name to the concept supply chain management. Supply chain management involves all movement and storage of raw material, and all the processes that is needed to manufacture a product from origin to consumption. Globalization, technology and increasing time and quality-based competition are all driving forces behind the concept and reasons for an increasing interest in supply chain management.The purpose of this essay is to by using a qualitative case study examine which decisive success factors that can be identified for effective supply chain management. We have compiled different theories on the subject to use for analyzing a case study Li & Fung, who is a successful supply chain management company.
Utveckling av en ny tillverkningslina
This report contains results of our study at CTC in Ljungby. CTC produces heating products such as boilers, heat pumps and additional products to their heating systems.The purpose of the report is to make a proposal how CTC will supply their new production line for heat pumps with materials. The proposal includes a production layout and a scheme for how to place the material in the production storage.The new production line will produce two different products and both of them have several variants. The line will also have a mixed flow, so the products can be produced in a random order. These conditions demand that the production line has great flexibility and that the material to all the variants can be stored in the production storage.With these conditions as input we made a layout proposal to the company.
Hur påverkar byggnadsmaterial av stål en induktiv hörslingas fältstyrka samt frekvensgång?
This research analyzed differences in measurements of magnetic field strength and frequency response in five audio induction loops installed in rooms of wooden construction materials and five audio inductive loops installed in rooms of steel reinforced concrete constructions. The inductive loops were installed at floor level and the measurements were made at the listening height of 1.2m. Measurements of background noise, field strength and frequency response were made at fifteen different measurement points across the room. The research measurements showed that there are differences in field strength and frequency response between these two conditions, whether the audio induction loop is installed in a wooden construction or the audio induction loop is installed in a reinforced concrete construction. The results had a significance level of p=0,05..
Akka. Ett skrivbord för hemmet anpassat för rullstolsburna.
A woman is dying of cancer, she refuses to use her walking aid. Because she is embarrassed. This means she can?t leave her house, and her last days become very limited.Why do we act like this?Can the view we have of products adapted for disabled be changed by working with colour, texture, form and materials?There are many products adapted for disabled, the products often have a good function and well developed ergonomic aspects but the visual aspect leaves a lot to wish for. There is neither effort nor money put in to the exterior design of most of these products.A lot of the solutions that are invented for adapted products can be used in design of ?regular? products.Why should we then divide products in to adapted and non-adapted.
Rening av metallhaltigt avloppsvatten : En teknisk/ekonomisk utvärdering av reningsmetoder för metallhaltigt avloppsvatten
This Master?s Thesis aims to investigate and assess the methods used to decrease the discharge ofmetals, primarily copper, from the water purification plant at Assa Industries plating factory inEskilstuna.Literature studies of the purification methods precipitation, ion exchange, evaporation, reverseosmosis and electrolysis has been done to appraise the adequacy of the technique. Thesetechniques are commonly used for purification of industrial waste water.Assa has four plating lines: the Trumline, the big Zinkline, the new Zinkline and the Decorativeline. The new Zinkline is the most modern of the four lines and purification is done byrecirculation over an ion exchange unit. The demand for fresh water is thereby heavily reduced.The Trumline, the big Zinkline and the Decorative line all use older techniques.
Hållbarhetsredovisning enligt GRI:s riktlinjer ? En studie om noterade bolags redovisning
I dagens samhälle finns ett stort fokus på miljö och att företag ska arbeta med hållbarhet. Efter flera uppmärksammade skandaler har kraven på företagens hållbarhetsarbete ökat. Corporate Social Responsibility (CSR) är ett av de mest förekommande begreppen inom hållbar utveckling och består av tre perspektiv ekonomiskt, socialt och miljömässigt. Hållbarhetsredovisning är frivillig och det finns flertalet organisationer som tagit fram principer och riktlinjer till företagen. En av de större organisationerna är Global Reporting Initiative (GRI) som tagit fram ett ramverk för hållbarhetsredovisning.
Exponera mera : ett arbete om skyltning på bibliotek
This Master s thesis deals with the display of library media, whether it is conceivable and desirable to draw inspiration from the retail business when displaying articles. The questions asked are: are there, in the retail sector, well established display ideas and - if so - what do they look like? Are the similarities in conditions, between the branches, sufficient? In conveying the ideas to libraries, are the potential differences not obstructive? Is there, among librarians, a positive attitude towards further development of library display techniques? The results were achieved by interviewing shop window dressers and librarians. In addition, a survey was sent to the library managers of 65 public libraries in southern Sweden. The results show that there are established ideas and methods of displaying materials, and that the ideas are manifested in frequently used techniques.
Kontraomvändelse - blivandet av en ateist : en religionspsykologisk undersökning av byte från religiöst orienteringssystem till ateistiskt
The purpose of this study in the psychology of religion is to explore the process of an individual?s shift in orienting system, from a religious to an atheistic. The materials used are autobiographical accounts obtained from two books. One that has been used as a primary source and one as a secondary. By using Rambo?s process oriented theory of religious conversion relevant themes and categories were chosen and later subjected to further analysis using Pargament?s theory of religion and coping.
Tolerans eller normkritik? : och en analys av användning av lärarhandledningen Någonstans går gränsen
This study deals with how the Swedish school system handles questions concerning sexuality and normality. It is also an analysis of how the guidance material Någonstans går gränsen from RFSL Stockholm is used and could be used in teaching.The study consists of two parts. The first part is a study of literature that portrays how teaching concerning these issues is performed in schools, what methods that are recommended and what methods are actually used in teaching. The second part consists of interviews with people dealing with these issues in school and in organizations.My results show that schools often use a ?pedagogy of tolerance? while the guidance material and the research and theories concerning sexuality and normality advocate a more ?queer pedagogy?.
Faktorer som påverkar sockerförlusten vid lagring av sockerbetor : inverkan av lagringstemperatur, lagringstid och vattentillgång
This thesis is a part of the project "Sustainable harvesting and storage of sugar beets, more sugar to practice". The work has included a large part of practical experimental work with weight measurement, graduation and storage planning. The aim of the project is to be able to see whether the cultivars react differently in different storage conditions. The project has included storage under controlled conditions to give as accurate results as possible. To be able to mimic the farmers own preconditions the samples was harvested with a conventional Holmer.This project has two parts, one concerning the nature, time and temperature on storage where a number of different cultivars where investigated during three different recording times, two different temperatures and controlled in a controlled environment.
E-böcker och bibliotek. En diskussion kring den digitala beståndsutvecklingens möte med en gryende e-boksmarknad
In Scandinavia the general idea of the Bronze Age society is that it was organised as chiefdoms. The model for what they looked like is taken from the anthropological studies of the Polynesian chiefdoms. The aim of my study is to investigate a Scandinavian Bronze Age feature, known as cairns mainly containing fire-cracked stone. This is compared with how people in different Polynesian chiefdoms, looked at similar remain. This is done to get a background for new ways of interpretation of such remains.
Laborera meraKan laborativt arbetssätt under de tidiga skolåren förebygga matematiksvårigheter?
Persson, K., Rooth, P., Sundblad, S. och Uthas, K. (20008). Laborera mera ? Kan ett laborativt arbetssätt i de tidiga skolåren förebygga matematiksvårigheter? (Explore more ? Can difficulties in mathematics be prevented with laboratory work in the early school years?) Högskolan, Kristianstad.