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351 Uppsatser om Experimental - Sida 14 av 24
Kontroll-lokus och beteende i grupp: en studie om sambandet mellan kontroll-lokus och individers beteende i en arbetsgrupp
The purpose of this study was to investigate the relationship between locus of control and behavior in a work group. The investigation was performed using two methods, self-report and observation, which were used in order to provide a description of how the individuals experienced their own behavior in a group context as well as of how they actually could be observed to behave. The 31 participants were divided into five groups. During the procedure each group received a task, which was to be discussed and solved by the group members together. Observations were carried out using IPA.
Utvärdering av försvarsspecifika radiovågformer
To be able to evaluate different radio waveforms in a laboratory environment FOI in Linköping has developed an Experimental system for radio communication called Rasmus. The system consists of a transmitter, a channel emulator and a receiver. The transmitter modulates a digital signal to a desired analogue waveform. The channel emulator is used to simulate a real radio channel. The channel emulator distorts the signal by splitting it up in several propagation paths.
Oxytocin-Ett risktagande eller en tillförlitlig behandling vid långdraget förlossningsförlopp hos förstföderskor
Background: Breastfeeding frequency decrease in Sweden and infants born preterm is a particularly vulnerable group to not be breastfed according to current recommendations. Mothers of preterm infants have an extra need of support from the health care system. Mothers' self-efficacy in breastfeeding affects the outcome of breastfeeding. Health professionals' attitudes to breastfeeding have an impact on the breast feeding support they provide to the mothers.Aim: To investigate whether an intervention could strengthen self-efficacy in breastfeeding among mothers of premature babies. A further aim was to investigate whether the intervention influenced health professionals' attitudes to breastfeeding.Method/Design: An Experimental study with quantitative approach in the form of questionnaire survey was conducted.
Sponsor or Die - En studie om imageöverföring vid mindre events
Studies conducted on event marketing have mainly focused on larger events. Managerial implications, marketing techniques, and theories in the field have hence dominantly addressed events of larger nature. Event marketing however is a growing phenomenon in the marketing mix. Brands are using event marketing to a greater extent. Brands are increasingly using small events as a marketing tool in order to create brand awareness and brand image; this goes for both small brands and large brands.
Prestanda och precision pa? en enkortsdator i ett system med realtidskrav
The report aims to investigate how well a certain type of affordable embedded single board computer can hold up against today's more expensive computers in a computer system by doing various tests on a system with the specified requirements. The system has a Raspberry Pi as the single board computer which task is to control a camera based on coordinates obtained from a server as well as capture and stream a video signal on a network.The researches were conducted to check how much network traffic a single-chip computer sent in different video formats and how much CPU utilization was required. Studies were also made to ensure the accuracy of the camera control. The researches have been Experimental, where several tests have been performed and analyzed.The results show that a sufficiently good accuracy can be obtained from the camera steering unit, in which two different servos have been investigated. When the video format MJPEG and H.264 are used, the single-chip computer is able to transmit a video signal up to 1280x720 at 15 fps.
Prosamodernism, form och genusdebatt : En komparativ form- och receptionsstudie av Karin Boyes Astarte och Rosa Chacels Estación, ida y vuelta
The aim of this study is to compare the modernist novels Astarte (1931) by the Swedish writer Karin Boye with Estación, Ida y vuelta (1930) by the Spanish author Rosa Chacel and the reception of these literary works in contemporary academic research. The theoretical ground of the study consists of feminist and critical theory, with traits of discourse analysis.Astarte and Estación were in large part forgotten and ignored by the Western Canon of literature during most of the 20th century, but have lately gained more attention as important modernist novels by researchers (from the feminist, poststructuralist or hermeneutic theoretical fields) who primarily examine the Experimental forms figured by the texts in relation to the deconstruction and shattering of human homogenous ?essence?.The results found in the study show that the literary forms of both novels can be associated with a kind of illusion rapture, which relate to the modernist inclination to what Frederic Jameson calls artificial narrative; a form technique that points back at itself to emphasize its own characteristic of being a constructed and subjective illustration of reality. The contemporary interest in these artificial literary forms expressed by Astarte and Estación is therefore probably a consequence of the vibrant academic debates carried out during later decades concerning the conception of human gender and identity as construction and performance. .
"Läsuppgifter i matematiken, det mest faktaintensiva språk du kan tänka dig" : En intervjustudie om undervisning av grundskoleelever med matematiksvårigheter
The aim of this study was to investigate which factors teachers and special needs education teachers view as being the main causes of mathematical learning difficulties and from these choose how to educate pupils with these difficulties. The aim was also to investigate how this education is organised at two different schools. An interview based investigation addressed these objectives by using three comprehensive questions:Which factors do the teachers and special needs teachers view as being the main reasons for mathematical learning difficulties?How do teachers and special needs teachers educate pupils with mathematical learning difficulties?How is the education organised for pupils with mathematical learning difficulties at two different schools?This study is based on four interviews of three teachers and one special needs teacher. The people interviewed work at two different primary schools in the same local authority.
Evaluering av återvinningseffektiviteten i Svensk Medicin och Google Scholar med medicinska frågor ur Fråga doktorn.
The purpose of this thesis is to evaluate and compare the retrieval effectiveness of two search engines on the Internet: Svensk Medicin and Google Scholar. Svensk Medicin is a medicine-specific search engine and Google Scholar specialises in indexing scholarly material. A set of 20 questions in four categories were used to conduct the searches with the search engines. Genuine medical information needs were selected from a question collection provided by the television program Fråga doktorn. The relevance of the first 10 retrieved documents was judged by using a binary scale and the measure used was precision.
Teoretisk och experimentell utvärdering av Lättelement AB:s takinfästning
Lattelement AB in Ornskoldsvik is one of the leading companies in Sweden in composite elements in walls, floors and roofs in particular. The company supplies elements to buildings located with a wide geographical variation, which means that the products are subjected to very different climate with regard to snow, wind and humidity. This places high demands and requires the elements to withstand large variable loads.The elements are made of lightweight beams with flanges of structural timber and beam webs made of OSB. These are bound together by nogging pieces with the same kind of structure. On top of the beams a nailed and glued plywood is added to absorb compressive forces and on the underside of the element a sheet of steel is added for tensile absorption.These elements are then attached to the building framework in different ways depending on the particular element height, loads and the structual supporting material of the frame work.
Optimering av driftläggningar i Fortums nät
Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The Experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.
Query Expansion ? en jämförande studie av Automatisk Query Expansion med och utan relevans-feedback
In query expansion (QE) terms are added to an initial query in order to improve retrieval effectiveness. In this thesis we use QE in the sense that a reformulation of the query is done by deleting the terms in the initial query and instead replacing them with terms from the documents retrieved in the initial run. The aim of this thesis is to, in a Experimental full text invironment, study and compare the retrieval result of two different query expansion strategies in relation to each other. The following questions are addressed by the study:
How do the two strategies perform in relation to each other regarding recall?
What may be causing the result?
Are the two strategies retrieving the same relevant documents?
Two strategies are designed to simulate a searcher using automatic query expansion (AQE) either with or without relevance feedback.
Smärtskattning med validerade smärtskattningsinstrument - en interventionsstudie
AbstractPain among patients in their final stage of life is a commonly occurring problem. Results fromthe Swedish Register of Palliative Care (SRPC) indicate that validated instruments forassessing pain are rarely used. Nurses' insufficient knowledge of pain and pain treatmentmethods may be a cause of maltreatment of patients who suffer from pain.The goal of this study was to determine whether training within the area of pain, painassessment and pain assessment instruments increases the use of validated pain assessmentinstruments utilized by nurses working in care homes for patients in the final stage of life inthe city of Uppsala.Method: A quantitative and quasi-Experimental design was selected to perform the study.The intervention study that was used consisted of one training session where onequestionnaire was given before and one after the time of training. Register data were collectedfrom the SRPC given the question of pain assessment before and after the intervention.Results: The study showed that nurses more often used pain assessment instruments after thetraining session. The results also showed that nurses to a greater extent than before alternatedbetween the two validated pain assessment instruments that were introduced at the trainingsession.Conclusion: The results showed that when nurses at care homes are given training in the areaof pain and pain assessment they absorb and use the newly acquired knowledge in theirclinical work..
Amning av prematurfödda barn : En interventionsstudie om mammors tillit och vårdpersonals attityder
Background: Breastfeeding frequency decrease in Sweden and infants born preterm is a particularly vulnerable group to not be breastfed according to current recommendations. Mothers of preterm infants have an extra need of support from the health care system. Mothers' self-efficacy in breastfeeding affects the outcome of breastfeeding. Health professionals' attitudes to breastfeeding have an impact on the breast feeding support they provide to the mothers.Aim: To investigate whether an intervention could strengthen self-efficacy in breastfeeding among mothers of premature babies. A further aim was to investigate whether the intervention influenced health professionals' attitudes to breastfeeding.Method/Design: An Experimental study with quantitative approach in the form of questionnaire survey was conducted.
PRODUKTINKONGRUENS: Vad som händer när en produkt i en produktkategori med negativ klang ges ett positivt attribut
Product development is essential for all companies that want to survive in competitive markets regardless of the characteristics of the product that the company sells. Companies that sell products within product categories which can be seen as bad, also need to develop their products in order to remain competitive. If these bad products add a positive attribute, for example that they get organic, a contradiction within the product arises and they get incongruent. This thesis investigates which effects that follow a launch of an incongruent product. The thesis also examines if these effects are affected by the strength of the brand under which the product is launched.A total of 240 respondents participated in an Experimental study where product incongruity was manipulated for two different product categories, where one well known brand and one unknown brand were examined in each category.
Det kaotiska laboratoriet - En kvalitativ studie om organisationen i IT-startups under olika perioder
The great economic impact of startups on society has made these types of companies an increasingly popular subject for research. Though no single definition of the word startup currently exists, one could define it as a temporary organization in search of a scalable, repeatable, and profitable business model. Seen from a historic perspective, tech-startups in particular should be considered a new phenomenon and the topic is still relatively unexplored. This study investigates the structure in tech-startups during their first months of existence and compares it to the structure that prevails when the companies have recruited at least five additional employees. In addition, the study explains why these changes occur.