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1061 Uppsatser om Randomized experiment - Sida 3 av 71

Svenska och utomhuspedagogik i lågstadiet : -Vi går ut för att lära in

AbstractThe comprehensive purpose of this essay is to get deeper insight, and more knowledge of how it is possible as an educationalist to integrate Swedish with outdoor education at a junior level. Children learn to read in different ways. In order to improve their reading and writing it is important to be open for alternative ways. In my survey I have chosen to interview three active educationalists. The method I selected was quality interviews.

?Dissociation av igenkänningsminnet med ortogonala variationer av egenskaperna frekvens och celebritet hos personnamn?

Tidigare studier har gett stöd för att igenkänningsminnet understöds av minst två processer: erinring (recollection) och familjaritet. Detta testades i två beteendeexperiment, inom ett Remember/Know paradigm (experiment 1) och ett Ja/Nej paradigm där Receiver - Operating Characteristics (ROC) beräknades (2). I ett påföljande Event - related potentials (ERP) experiment undersöktes vidare distinktionen mellan minnesprocesserna under återvinning. Deltagarna studerade namn med två former av pre - experimentell familjaritet, namnfrekvens och celebritet, vilka kombinerades till ortogonala variationer av dimensionerna. Frekvens operationaliserades som antalet träffar i den nationella telefonkatalogen och celebritet som antalet träffar i massmediala webbsidor.

Är vi artiga mot virtuella agenter?

The CASA-paradigm, Computers Are Social Actors, was introduced in the book "TheMedia Equation" by Reeves and Nass. One of their experiments concluded that we tend to be polite to computers in the same way as we are to people. In this study I have replicated Reeves and Nass experiment but instead of a text-based interface I have used a virtual agentin order to find out if we are polite to the agents, or still to the computer. Two experimental setups was conducted. The two setups had a common first part that was carried out on onecomputer with one agent.

Sinnesmarknadsföring i livsmedelsbutik : Ett experiment i samarbete med ICA Group

Context: In cooperation with ICA, we chose to investigate how much the auditory and visual stimuli in combination affects consumer behavior in grocery store. There are few studies in the area, which gives good practical and theoretical implications.Research question: How much influenced consumers' purchasing, movement and inspection behavior during exposure to auditory and visual stimuli in the fruit and vegetable department of a grocery store?Purpose: The purpose of this paper is to describe and analyze how much the auditory and visual stimuli affect consumer behavior in the grocery store. We do this through a quantitative experiment of our partner?s fruit and vegetable section, where we observe customer behavior in stores.

Var det värt det - Hur prisnivå påverkar uppfattad kvalitet, prisvärde och kundnöjdhet

The purpose of this paper is to examine the effect that price has on quality expectations and customer satisfaction and how price fits into a customer satisfaction model. An experiment in which participants are subject to scenarios of a high or low quality flight are used to test the hypotheses. The analysis shows that perceived quality has a bigger impact on satisfaction than price. Furthermore, price and quality do not affect customer satisfaction independently of each other. The importance of value compared to quality changes whether the actor is a high or low price actor.

Perceptuell identifiering av musikgenre

This is a study in the field of Music Information Retrieval (MIR) concerning classification of musicgenre. The study uses a music listening experiment and machine learning methods to determinewhether or not the drum sounds from different songs contain sufficient information to classifygenre.MIR methods are used to extract data from the audio signals. The data is used together with theclassification results of the listening experiment to train different machine learning algorithms toclassify the songs in different genres.The results indicate that using only drum sounds for genre classifications works well, both forlisteners and for machine learning methods..

Samspelseffekter vid kapacitetsförbättringar. : Exempel från Dalabanan.

The trend in the transport sector is moving towards eco-friendly, fast and convenient transportation,this results in higher demands on railway transports. To meet the demand and quality requirements,the Swedish railway network will have to expand. The cheapest way is to expand little by little butwhat impact do these small steps actually have on the capacity?This thesis examines the interactions of different improvement for the capacity on a single-trackrailway. Through simulations in the software tool RailSys this report studies what effect block signals,extra meeting stations and rebuilding existing two track passing loops to three track loops have onthe capacity.

Traktkilars inverkan på hovens glukos- och laktatmetabolism :

The equine hoof is often manipulated in purpose to achieve a better stride or to reduce the weight on damaged tissue. The living tissue in the hoof can?t store energy as glycogen and is therefore depending on a continuous supply of glucose for its energy production. The purpose of the study was to determine if wedging (i.e. elevating) the heel could influence the hooves glucose and lactate consumption/production. Five standardbred horses were trained to trot on a treadmill without getting physical or mentally tired.

Informationssökning i tre olika hypertextstrukturer - ett experiment

The aim of this study was to find out if hypertext structure has any relevance for the efficiency of information retrieval. An experiment, in which three variants of hypertext structure were compared, was carried out in the autumn of 1998. Three websites with different structures were constructed for this purpose: a sequential version, a hierarchical version and a webcluster version. 44 subjects, all students at the University of Lund, were randomly divided into three groups. Subjects were requiered to answer a number of questions using one of the three versions.

Tungmetaller i lakvatten : avskiljning med mineraliska filtermaterial

Four different kinds of filter-materials with reactive surfaces have been studied concerning their capacity to absorb heavy metals in leachate from a municipal waste deposit. The heavy metals studied were: lead, cadmium, copper, mercury, chromium, nickel and zinc. The leachate contains high levels of dissolved organic carbon (DOC) and has a high pH-value along with a high buffer capacity. These characteristics of the leachate make it difficult to remove pollutants and require efficient filters. The filters that were examined in the report are blast-furnace slag with CaO, sand covered with iron oxides, olivine and nepheline.

Tillbaka till framtiden : Priming av temporalt fokus hos arabisktalande med svenska som andraspråk.

Syftet med den här uppsatsen är att utföra de la Fuente et al:s (2014) experiment med priming av temporalt fokus hos arbisktalande individer med svenska som andraspråk. De frågor som undersöks är i vilken utsträckning de la Fuente et al:s temporalfokushypotes är generaliserbar till fler språkgrupper än spansktalande, vilka primingeffekterna blir hos individerna, samt vilka faktorer som inverkar på det temporala fokuset utöver primingen. Metoden är att återupprepa det experiment de la Fuente et al. gjort med spansktalande, genom att återutföra det på en grupp arabisktalande individer med svenska som andraspråk. Resultatet av föreliggande studies upprepning av de la Fuentes experiment på arabisktalande, visar att primingeffekterna uteblir, men att faktorer som vistelsetid och ålder inverkar påvisbart på tidsrepresentationen.

Effekten av metyljasmonat som skydd mot gnag av snytbagge (Hylobius abietis) på gran- och tallplantor :

The effect of methyl jasmonate on resistance against the large pine weevil (Hylobius abietis) in Scots pine and Norway spruce seedlings. A field experiment was conducted in order to determine the dose-response effects of methyl jasmonate (MJ) on growth and defence to pine weevils in Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) and to compare the effect of MJ between pine and spruce. In addition a complementary greenhouse experiment was conducted with the same aims as above and to determine the amount of resin ducts and their correlation to the feeding of pine weevils. The field experiment was conducted on a fresh clear cutting in Garpenberg, southern Dalarna in central Sweden. The experiment consisted of 30 blocks with three kinds of containerized seedlings: 2-year old spruce, small pine (before shoot elongation) and 1-year old pine (already shoot elongated). They were all exposed to 4 treatments 14 days prior to the experiment: control, 25 mM/L MJ, 50 mM/L MJ and 100 mM/L MJ. Data on weevil damage and seedling growth were collected after the first and the second growing season. The seedlings in the greenhouse experiment were of the same kind and were exposed to the same treatment as the ones in the field experiment.

Vårtor på mjölkkornas spenar :

The reason why I choose the subject ?Warts on teats of Dairy Cows? was because the herd I work with has big problems with skin-complaint on teats and udder. So I found it interesting to try to find the reason why the cows look like they do and even to find a way to relieve the trouble. The examine work included both a literature research, an experimental test, concerning a comparison of different teat sprays and also an inquiry-research about the occurrence of warts in practical herds in order to collect as much facts as possible. Three companies, selling different types of teat disinfectants, were willing to sponsor the teat dipping experiment. The aim of the experiment was to see if any special disinfectant had more pronounced healing effects on teat warts. The date for the experiment was 18th December 2004 to 22nd January 2005, which was going to be 5 weeks.The experiment was carried out in the herd of Ola and Eskil Carlsson in Fjärlöv, Hässleholm. The three compared teat spray chemicals were; Nova Viri Sun, Nardosept, and BlockadeTM. These chemicals were compared to one control group, which teats were treated with the ordinary chemical normally used in the herd, i.e.

Smakar konsumenter med ögonen En undersökning om förpackningens visuella attributs inverkan på smakupplevelsen av singelmaltwhisky

Packaging has had little impact in marketing literature. Research has focused on a single transaction approach. Lately researchers are looking at packages as a tool for brand building purposes. Thus, the focus is moving towards a multiple transaction approach, where packages can affect the consumer also after the purchase. For a range of goods extrinsic cues has been shown to have stronger effect on consumers' evaluation than intrinsic ones.

Vad är det här för låda? En Balthazarlåda! : En intervjustudie om pedagogers uppfattningar kring arbetet med färdigdefinierat material innehållande kemiska experiment.

Syftet med denna studie är att undersöka pedagogers uppfattningar kring ett arbete med Balthazarlådan som ett färdigdefinierat material innehållande enkla kemiska experiment. Det färdigdefinierade materialet, Balthazarlådan innehåller experiment om vattnets aggregationsformer och ytspänning, material till experimenten samt förklaringar till experimenten. Genom individuella semistrukturerade intervjuer så har svar på följande frågor sökts: Vilka tankar har pedagoger kring att arbeta med ett färdigdefinierat material, en låda med enkla kemiska experiment? Vilka fördelar respektive nackdelar upplever pedagoger med att arbeta utifrån ett färdigdefinierat material i förskolan? Vilka tankar har pedagoger om det färdigdefinierade materialet som en inspirationskälla kring arbetet med kemi i förskolans verksamhet? Resultatet visar att pedagogerna har arbetat med Balthazarlådan på olika sätt, antingen genom barnens intressen eller för att få barnen intresserade av kemi. Alla pedagogerna ser många fördelar att arbeta med kemi i verksamheten utifrån Balthazarlådan.

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