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8633 Uppsatser om Laboratory method - Sida 8 av 576

Jämförelse av olika metoder att generera Bernoullifördelade slumptal givet deras summa

In this master?s thesis the problem of simulating conditional Bernoulli distributed stochastic variables, given the sum, is considered. Three simulation methods are considered, namely the acceptance/rejection technique, Bondesson?s method and the Markov chain Monte Carlo method.To compare the three methods the bias and the standard deviations of the simulated variables are evaluated. The results of the simulation study shows that the Markov chain Monte Carlo method is not the best method for this type of simulation.

Interferences during analysis of polyphenols in fruit juices

One of the most commonly used methods for analysis of polyphenols is the Folin-Ciocalteu (FC) method, where the FC reagent has been reported to interfere with some substances in fruit juices. The interfering substance that is present in the highest amount in most fruit juices is ascorbic acid. In this study, the total phenolic content (TPC) of three fruit juices was analysed by the FC method as well as with an enzymatic method with hydrogen peroxide oxidoreductase type II (HRP) for comparison. To investigate how the interfering ascorbic acid affects the TPC, juice samples were analysed after removal and addition, respectively, of ascorbic acid. The samples were analysed with HPLC both before and after the extraction phase of the FC method.

Sjukgymnasters syn på en ny behandlingsmetod med vibrationsträning som exempel: en kvalitativ studie

The aim of the study has been to investigate physiotherapists? view on a new method of treatment in physiotherapy. In this case we have studied Whole Body Vibration training as an example of a new method of treatment. Semistructured interviews were performed with five physiotherapists. The study was carried out as a qualitative content analysis study.

Metodundersökning av tre metoder för kvävemätning i en arktisk äng : Jämförelse mellan mätmetoderna extraktion, inkubation och jonbytesmembran (PRS-sond)

The purpose with this report was to compare three commonly occurring methods for measuring plant available nitrogen in soils. The methods extraction, incubation and Plant root simulator (PRS) probe - an ion exchange membrane (Western Ag Innovations, Inc., Saskatoon, Canada) method were used and comparison between these methods were conducted. A full factorial experiment were set up in northern Finland with the treatments excluding herbivores, warming and fertilization to see how the inorganic nitrogen content in the soil was effected by the treatments. Soil cores were taken and from them a subsample was incubated for 18 days and thereafter analyzed for inorganic N in laboratory. PRS- probes were in the ground for 1 month.

Nollavräkning av entreprenadprojekt: Teoretisk grund och praktisk betydelse

The purpose of this study is to investigate the method called zero recognition that is used in accounting for construction contracts when the outcome is uncertain. When this is the case it is hard to make the necessary estimates needed for the percentage of completion method to be used. Both the meaning of the method from an accounting perspective and the practical importance and purpose of the method is investigated. The method used for this study is the qualitative one and the deductive model is used to relate the theory with the empirical research. The theoretical background consists of accounting theory and theories about individuals, companies and markets.

Kapitalbindning och lönsamhet på 1980- och 2000-talet

This article is about Abrahams Children foundation and its teaching method called IE- method. It?s about how a teacher can use the IE- method in the religion lesson. There were some questions in this article that had to be answered and the questions are:- How is the form of the religion classes when a teacher uses the IE- method?- What happens in the class when you study the interaction and the communication?- Does the student?s participation increase when they work with the IE- method?- What are the advantage and the disadvantage with the IE- method?- Can the teacher use the IE- method in other classes?To get to the ?correct? answer I used many methods like, observation in the class, qualitative interview with the teacher (Lisa Andersson) and with four students (Kim, Erik, Amanda, Patrik) and I also used questionnaire.

The welfare of the laboratory mouse : comparison in development of mouse pups in three different individual ventilated cage (IVC) systems

Today the individual ventilated cage system (IVC-system) is a commonly used housing system for mice in research facilities. IVC systems have HEPA- filters and are designed to control both supply and exhausted air at cage level, as well as temperature and relative humidity in the cages. This creates an optimal environment for the mouse and at the same time a protection against the risk of cross-infection between cages and the outside environment. The aim of this study was to evaluate the health and welfare of breeding females and pups of two different strains of laboratory mice (NMRI nude mice and C57BL/6N) in three different kinds of IVC-systems; Arrowmight, Allentown and Tecniplast. The NMRI nude (Nu) females gave birth to 18 litters in Allentown, 16 litters in Arrowmight and 15 litters in Tecniplast.

Läsundervisning- att följa en metod eller ej? : En jämförande studie om lärares val av metod i arbetet med den tidiga läsinlärningen

This is a study of how four teachers work with pupils? early literacy learning. Interviews were conducted with two teachers who chose to use a specific method, Writing to Read (WTR), for teaching pupils to read, and with two teachers who had not chosen a specific method. The aim of the study was to compare how the teachers worked, their motives for their choice of method, and the ideas the teachers have about early literacy learning. To see whether the teachers? choice of method was related to the individualization of the teaching and their views of pupils? learning in interaction, Vygotsky?s theories about children?s learning have been used.

Industriforskning och informationssökning: en användarstudie av en grupp forskare vid ABB Corporate Research

The thesis aims at, from a user perspective, examining how a group of industrial researchers understand the information seeking in their every day work. A qualitative method is employed. The empirical material consists of open-ended interviews with in all ten researchers. All of them work at the Swiss-Swedish Technology Company ABB's research laboratory in Västerås. The thesis is based on the opinion that the scientific knowledge production has become commercialised and that the scientific communication is going through certain changes.

Enstudie om lågtempererat värmesystem i vägg : -Fokus på inomhusklimatet och energianvändning

Today the human being see energy as a matter of course but the resources that is used for extract energy is today not enough for the world demand. Of all the energy that is used in Sweden today approximately 40 % goes to the building stock. This number will most likely increase if not necessary actions will be made on the already existing building stock since new houses constantly are built which will be added up on the already existing energy supply. This takes cause of action on the already existing building stocks, to fulfill the demands of the future use of energy that has been set by the authority. At the same time the thermal conditions cannot be influenced by the necessary changes that must be made.

Indirekt blodtrycksmätning hos hund och katt :

The objective of this study was to study the agreement between two methods of indirect bloodpressure measurement in dogs and cats and to establish the within-method variation for the methods. The utility and practicality in the clinical setting were also evaluated for the both methods. The techniques evaluated were the oscillometric method and the Doppler ultrasonographic method. Thirtytwo dogs and 26 cats were used in the study and seven dogs and five cats out of these animals had diseases that may effect the bloodpressure. Bloodpressure was measured in both anesthetized and in conscious animals.

Förändring inom Polisen ? : en fallstudie ur ett medarbetarperspektiv

Background: The Swedish Police authorities have accomplished several changes the last years. We have studied one of these changes, the co-ordination of two supporting functions, economy and staffadministration at the Police authorities in Östergötland, Jönköping, Södermanland and SKL (Swedish crime technical laboratory). The initiative to this change was taken in 2002 and in 2003 a decision was made to create a joint servicecenter.Purpose: The purpose of this rapport is, in a collaborator perspective, to study the employees´ experiences of the change process.Method: The empirical material was collected throw interviews with the employees who have taken part in the change process. Even the leader of the project has been interviewed.Results: We have distinguished five central aspects in the change process. These are information/communication and understanding, the project leader, teamwork, timeaspect/reflexion and the leadership.

Styrkor och svagheter med problembaserat lärande-en metastudie

AbstractProblem-based learning (PBL) was from the beginning developed in medical school, but is today used in education in other programmes as well. Investigations about PBL have been conducted in different disciplines and there is also metastudies. In this paper, a metastudy of 8 bachelor degree papers have been conducted. The questions answered were: which methods were used to investigate PBL in primary, lower secondary and upper secondary school,which advantages were found in working according to the PBL method, which disadvantages were found in working according to the PBL method and did teachers and students views about advantages and disadvantages about PBL as a method differ and if they did, how? The results showed that mostly qualitative methods were used to investigate the PBL as a method, mostly abilities of social qualities and independence were trained in working according to PBL, a disadvantage was that working according to the PBL method was considered more resourse consuming than traditional teaching methods and teachers and students views about PBL did not differ considerably.

pm3-revision : En välgrundad metodutveckling av metod för revision av förvaltningsstyrning

In the field of maintenance management there are but a few models an organization can use. The one model that has risen to the status of being the de facto standard in Sweden is pm3(på maintenance management model). The aim of this study is to lay the groundwork for a new method of evaluate the use of pm3within organizations. Today there is no uniform way of performing such an evaluation, which is necessary in order to diagnose the performance of the systems maintenance organizations.In the process of creating our own method for performing this kind of pm3audit, we further developed the ideas from a study by Lagsten & Nordström (2013) that was performed at the county Region Skåne. The authors of that study had developed ideas about using method rationale as a basis of creating a method for pm3auditing.

Bedömningssamtal inom Barn- och Ungdomspsykiatrin

The purpose of this study was to gain an understanding of the structured and evidence-based assessment tool/method The Brief Child and Family Phone Interview (BCFPI) trough a social psychology perspective of conversation. The aim was especially to seek an understanding of the method considering aspects of children?s participation. The research question was: how do the method users apprehend the advantages and the limitations of the BCFPI method considering aspects of children?s participation.

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