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749 Uppsatser om Radiation dose reduction - Sida 25 av 50
Att förhandla om rum : en etnologisk analys av hantverkares tal om kundmöten
The aim of this study is to point out variations of practices in the relationship between professionals of service occupations and their clients. The material consists of four openly conducted thematic interviews with male professionals who work in the environment of their clients' homes.The main theoretical approach of this analysisis undertaken with ethnicity in mind.The practices identified aim to throw light on the boundaries between the differing cultures of professionals and their clients.The analytical termsboundary reduction and boundary maintenanceare used in this research.The two-stage analysis points out different practicesused, in chronological order, during contact between professionals and their clients. This is followed by a statement of the themes which connect, primarily fromthe professional perspective. The results indicate an intimate connection between intercultural and transcultural aspects through the use of cultural transparancy, which is a strategy connecting different roles, aswell as use of loophole tacticsthat afford the possibility of definingspace, place and relationship.It's illustrated how the professionals operate from "within the structures and worldview" of the client, and this analysis also reveals a glimpse of the potential for cultural changein the meeting between different cultures..
I BRÄNNPUNKTEN: Samhällsekonomisk utvärdering av arbetsmarknadsåtgärder. Illustrerad med hjälp av Brännpunkt i Kävlinge 2002-2005
The purpose of this essay is to examine cost-benefit-analysis as a method of evaluation of labour market policy. To illustrate the possibilities and difficulties of the method chapter four contains a partial cost-benefit-analysis of the results of a labour market project in Kävlinge. The questions this essay strives to answer are the following: What possibilities and difficulties do cost-benefit-analyses entail? How would one conduct a cost-benefit-analysis of the project in Kävlinge?The method used in this essay is mainly a literature study of cost-benefit-analysis of labour market programs. The labour market project Brännpunkt is used as an example in a partial cost-benefit-analysis.The applied cost-benefit-analysis of the Brännpunkt project in Kävlinge shows that it is possible to calculate the profit for the society as a whole, given that the necessary information is obtainable.
Öronakupunktur mot ångest och depression : En analys av behandling i grupp
Introduction: Anxiety and depression are common among patients enrolled in psychiatric outpatient care. Ear Acupuncture is an alternative form of treatment that has been shown to relieve anxiety and depression in previous studies.Aim: To evaluate ear acupuncture as a group treatment for depression and anxietyMethod: A psychiatric outpatient clinic has been offering group treatments with ear acupuncture for anxiety and depression for 5 weeks. Participants of the study have answered self-rating scales Montgomery Åsberg Depression Rating Scale, Beck Anxiety Inventory and Sheehan Disability scale before and after the treatment period. Material was collected in the period 2008-2012 and has been analyzed in SPSS.Results: Data from 31 patients were included in the study. The results from the study showed a significant difference, between the measurements before and after treatment, with a reduction of the average values in the three different scales.Summary: From this study, it is difficult to draw any conclusions about the effect of ear acupuncture.
Optimala reduktionsgränser för kalldragna rör : Optimal reduction limits for cold-drawn tubes
Dragbänken installerades på avdelning kallbearbetade rör på Ovako i Hofors 1990. Sedan dess har kvalitetskraven på de dragna rören ökat. Samtidigt har produktivitetskraven ökat, det vill säga att tillverka rör till rätt kostnad. I produktionsplaneringsprogrammet finns gränser och regler för hur de dragna rören ska tillverkas för att rätt kvalitet och kostnad ska uppnås. Eftersom både de dragna rören och de varmvalsade ingångsrören har ändrats med åren så stämmer inte alltid gränserna och reglerna idag.
Föräldrars uppfattningar om förändringar gällande aptit och måltidssituationer hos barn som medicineras mot ADHD vid Habiliteringen vid Uppsala läns landsting
The aim of this study was to examine if parents, of children diagnosed with ADHD, exprerienced any changes regarding their childrens appetite after starting psycostimulant treatment. Further more the aim was to examine what kind of changes concerning the appetite that were found and if they affected the meal situation as a whole.Method: A questionnaire study was conducted in the spring of 2011. The study included 81 parent?s to children who were enrolled at the Habilitation in Uppsala and medicated with psychostimulants for ADHD. The children's ages ranged between six and 18 years.
TaqMan® Sample-to-SNP Kit? : evaluation of kit for low-cost and fast preparing of DNA-samples before genotype analysis
Genotyping can be used to link genetic variation among individuals to certain diseases or conditions. Some known disorders and states that are dependent on single nucleotide polymorphism (SNPs) are lactose intolerance, venous thrombosis, hereditary hemochromatosis and the difference in sensibility among people to metabolise drugs.In this project a new kit, TaqManÒ Sample-to-SNP KitÔ for extraction of DNA and preparation of the extract for genotyping with real-time PCR and allelic discrimination, was evaluated. QIAamp® DNA Blood Biorobot® MDx Kit was used as the reference method.The purpose of the comparison was to find a method that makes DNA extraction from blood samples cheaper and faster, but with the same reliability as the reference procedure.The results of the evaluation showed a complete agreement of the genotype results between the methods tested, which means that the new method was as reliable as the reference method. The costs of reagents and material would be reduced with 52% if the new method is adopted, that alone would result in a cost reduction of 144 000SEK a year with a sample volume of 650 samples/month. The time for DNA extraction would also be reduced with the new procedure. .
Telekomspecialisering i Östra Europa - Integrationens betydelse för en produktionsfragmenterad industri
One of the most distinguishing features of contemporary globalisation is production fragmentation, a splitting up of the manufacturing of a good into several different stages. Production fragmentation creates new opportunities through vertical specialization; a country incapable of mastering the entire production process may specialize in the manufacturing of one separate part. The aim of this thesis is to examine to what extent international integration affects a country?s ability to engage in vertical specialization in an industry characterized by production fragmentation. The analysis focuses on the european integration process over the last decade, where countries in eastern Europe with relatively low labour costs have been integrated with more capital abundant western economies.
CSR och B2B, olja och vatten? : En undersökning av CSR som konkurrensfördel inom Business-to-Businessmarknaden
The aim of this thesis is to examine how secondary teachers in the subject of history are using the textbook in their teaching. Four questions are being dealt with in this thesis. What importance is being placed on the use of history textbooks by the secondary teachers? What priorities do the secondary teachers have? How do they deal with student interests? And what is the importance of the secondary teachers? work experience? I have interviewed four secondary teachers with different work experience to complete this thesis. A Dictaphone has been used in all the interviews. Research has shown that textbooks now have a central role in teaching and the lack of alternative materials and reduction of teaching hours has made it difficult to replace. The main conclusions of the thesis are that the history textbook has a dual role depending on the teacher you ask, and that the history book is used differently by the teachers.
Mindfulness - att tillämpa medveten närvaro
In this multistudy the aim was to measure the effect of mindfulness and yoga in
negative stress. Is it possible for yoga and mindfulness to increase awareness
and acceptance to inner and outher circumstances? Mindfulness-Based Stress
Reduction (MBSR) has shown good results in how to cope with negative stress and
how to stay calm in a stressful envirorment. The qualitative study where Visby
Yoga Center and Stockholm Yoga Shakti attended in a survey. Correlation showed
no relationship between stress and mindfulness and no significant value, n=20,
Cohens d=0,16.
Den demokratiska lyxen
Abstract: The fashion industry is perhaps the most unpredictable one where change occurs very rapidly. In order to be attractive and interesting in this competitive industry, a brand must constantly be up to date and differentiated from other brands to attract the consumers. This has given rise to an increasing growth of brands that cooperate for marketing reasons and more specifically, clothing retailers that perform designer collaborations with exclusive designers to create limited collections.Studies describing the effects of those collaborations on the retailers brands are rare and especially from a consumer perspective. Since H&M has been a pioneer in designer collaborations and has done it more times and for more years than any other retailer we have conducted our study on their case. Our intention was to investigate how the designer collaborations have affected the brand equity and image of H&M, if the collaborations have increased the willingness to pay for H&M's other ranges and if they have affected H&M's ability to extend its brand to higher price segments, through an experimental study.
Migration och vegetationsupptag av radiocesium i åkermark - en långtidsserie av mätdata samt en långsiktig simuleringsmodell :
Abstract
The accident in 1986 at the nuclear power station in Chernobyl, Ukraine, dispersed radioactive cesium over large areas of Europe. The half life of 137Cs is 30 years and this radionuclide also behaves like potassium, which means that it can easily be taken up by the vegetation or be adsorbed in to the structure of clays, principally illitic clays. When radiocesium decays ionizing radiation is emitted, which is harmful to humans that are exposed, either directly or indirectly through food intake. It is there-fore important to know what happens to the cesium that is dispersed into the environ-ment.
In this project a simulation model was constructed to simulate the adsorption and transport of radiocesium in the soil and plant uptake.
Artificiella sötningsmedel i dryck och dess effekt på hungerkänslor och energiintag
Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: Artificial sweeteners in beverage and their effecton hunger and energy intakeAuthor: Sofia Andersson and Sofia JakobssonSupervisor: Heléne Bertéus ForslundExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: April 11, 2012BackgroundIn 2010 the total consumption of soft drinks in Sweden was estimated to 69 litres per person and17 % of the domestic production was estimated to consist of soft drinks sweetened with artificialsweeteners. The effects of artificial sweeteners on hunger is not yet fully understood. It isspeculated that they might increase hunger and hence increase energy intake.ObjectiveThe aim was to compile the evidence regarding the effects of an intake of a beverage sweetenedwith artificial sweeteners compared to sucrose on subsequent hunger and energy intake.Search strategyA systematic search for literature was performed in the databases PubMed and Scopus.Selection criteriaThe inclusion criteria were RCT, human studies, articles published in Swedish or English, studieson healthy adults and studies measuring hunger with a subjective scale or energy intake. Theexclusion criteria were studies who measured energy intake under other forms than standardisedor controlled, studies without a standardised dose of the beverage and articles needed to beordered against payment.Data collection and analysisFour articles were selected and examined according to a template developed by SBU. Theevidence for each outcome was weighed together and graded according to GRADE based on asummarised evidence form developed by the Sahlgrenska Academy.Main resultsAll four articles measured subjectively rated hunger.
Ställtidsreduktion i montering av kopplingar
VBG Produkter AB is a process-orientated company that develops, manufactures and markets trailer couplings with belonging coupling equipment, protection equipment against skidding and stands for wagon-bridge for heavy vehicles. The company feels that their set-up time in production for couplings is not at an acceptable level. Due to high demands of customer oriented production the intermediate stock level of included products within the assembly of couplings has gradually increased which has resulted in high inventory holding costs. VBG Produkter applies Kanban in their production, therefore it is important to produce exactly the necessary amount and avoid overproduction. The objective of this project is to suggest appropriate solutions so that VBG Produkter is able to reduce their set-up time in assembly of couplings, by identifying internal and external set-up time for the chosen process bushing cell.
Servostyrning med binaural ljudlokalisering
People are usually directed towards each other in conversations, to make it easier to hear what is being said. Algorithms for voice and speech recognition works in a similar way, regarding the microphone direction towards the sound source. In this thesis in electronics has therefore a servo control with binaural sound localization been implemented on a microcontroller connected to two microphones.When people perceive sound, the brain can estimate the sound source direction by comparing the time taken by the sound reaching one ear to the other [1]. The difference in time is called the interaural time difference, and can be calculated using various techniques. An exploratory comparison between the techniques cross-correlation and cross-spectrum analysis was carried out before implementation.
Flottledsåterställning i norra Sverige: : effekter på habitatkvalitet och populationstätheter av juvenil öringar (Salmo trutta L.)
In an effort to evaluate the effects of restorations of float ways on population density of stream dwelling fish in relation to the changes in habitat, I studied the physical habitat restored and channalized sites and their population density of brown trout (Salmo trutta L.) in three streams in the municipality of Sorsele.
The differences between the channalized and the restored sites where most noticeable regarding substrate which where generally coarser in the restored sites. The analyses showed that the proportion of habitat that where suitable to the age class 0+ where significantly lower in the restored sites compared to the channalized sites. Regarding age class ?2+, no statistical differences in habitat quality were found.