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14305 Uppsatser om Difference- in- difference analys - Sida 16 av 954
Den utan socker : En undersökning om skillnader mellan generationer då det gäller inställning, tillförlitlighet och påverkan av tv-reklam
The first company to send TV-commercial was the American company NBC, it was in the year of 1941. In Sweden, TV-commercials were first shown in 1987/88. TV 4 was the first channel to send commercial in Swedish television.TV has the advantage of showing both sound and picture, which makes TV the strongest channel of communication to mediate a message between a company and the consumer. Although TV-commercial is the most expensive choice to mediate a message, it is also the most effective one. (Persson, 1993)Almost everyone is exposed to TV-commercial daily.
Marknadens implicita värde på det permanenta mätfelet på Stockholmsbörsen
This study investigates whether the permanent measurement bias (PMB) has changed over time for Swedish companies listed on the Stockholm Stock exchange at least one year during 1996-2000 or 2005-2010. By using the Residual Income Valuation-model the markets' implicit value on PMB is generated through reversed engineering, as values for all variables except PMB are entered such as the market perceived them at the specific valuation date each year. This implicit value is classified into industries and then sorted by their median. Statistical tests are performed to see if there is a difference between the industry median and the accounting-based values on PMB. The difference from period one to period two is also statistically tested for.The study finds that the implicit values on PMB have changed somewhat between the periods; however the fluctuations are not statistically significant.
Design comparison between HiperLAN/2 and IEEE802.11a services
This paper is a study and comparison between the two Wireless LAN (WLAN) standards HiperLAN/2 and IEEE 802.11a. WLANs are used instead or together with ordinary LANs to increase mobility in for example an office. HiperLAN/2 is an European standard developed by ETSI and the IEEEs standard is American. A WLAN-card consists roughly of a Medium Access Control (MAC), Physichal layer (PHY) and an antenna. The antenna is the same for the different standards.
Hur skall skogen skötas? ? en analys av skogsfastigheten Fagerdal 2:10 i Jämtland
The forest property Fagerdal 2:10 was donated to the Swedish University of Agriculture in 1995 by Erik Rönnberg. The dominating species is Norwegian spruce (Picea Abies) and the average age is high due to selective cutting. The aim of this study has been to analyze how the forest on the property should be managed and demonstrate how a better estimated forest data affects the future management. The impact of the management on the carbon stock of the property was also examined.
A forestry plan established in 2009 by Skogssällskapet was used as a basis for the analyses.
INDIVIDUELLT LÄRANDE I TEAM - En studie av lärstilars inverkan på lärande, effektivitet och prestation
Organizational learning has become more and more important in the last decades as the environment in which organizations exist continues to change rapidly and unexpectedly. In order for organizational learning to happen, the individuals within the organization must learn. Just as different individuals possess different skills, each individual also has their own learning style. As the use of teamwork increases, so does the need for techniques to put high performing teams together and with organizational learning as one of the objectives the question is, how do we maximize learning, efficiency and performance in teams? This study uses a quantitative method to examine how teams, from a course at the Stockholm School of Economics, perform on the individual learning, team efficiency and team performance scale based on the individual learning styles within the team.
Plantar fasciit ? evidens för stötvågsbehandling för smärtlindring och förbättrad funktion, en systematisk litteraturstudie?
AimThe aim of the present study was to study possible evidence for shock wave therapy on pain and function in patients with plantar fasciitis.Questions1. Does shock wave therapy reduce pain in patients with plantar fasciitis?2. Does shock wave therapy improve function in patients with plantar fasciitis?MethodA systematic review of the literature was performed in the databases PubMed, EMBASE, Cochrane and Cinahl.
Förbättrad muskelfunktion och balans hos äldre kvinnor efter sex veckors funktionell träning
Sweden is the country that has got the largest amount of elderly in the adult population in the world. The physical activity level decreases as we grow old and we experience muscle mass loss and a bone density reduction. This leads to an increased risk for falls and subsequent fractures. The purpose of this study was to investigate whether an exercise program could affect muscle function and balance ability to prevent falls. 17 women (age 64-79) participated in this study and was assigned to a control group (n=7) and an intervention group (n=10).
Om individanpassad matematikundervisning i praktiken : en intervjustudie med tre pedagoger i grundskolans tidigare år
Studies show that the performance of Swedish students in the subject of mathematics is to be considered somewhat average. The government has therefore decided to assist with extended project funding to schools on a local level in order to improve these results.Schools will, unlike before, practice teaching suited for the individual needs of students based on their previous experiences, knowledge level, language comprehension and their environment. This is also clearly stated in the Swedish school curriculum.My survey shows how three teachers in primary school actually work towards individualized teaching of mathematics and what methods they prefer. This survey also answered what these teachers considered to be the obstacles and opportunities with individualized teaching methods. The difference in approach of how to practice this has also been documented.The survey, based on interviews and class observations, have been analyzed and compared to previous research and theories in the field of teaching practices.
Medias gestaltning av Uppsala Reggaefestival : ett problemfyllt evenemang?
Purpose/Aim: This essay seeks to describe in what way different newspapers framed Uppsala Reggaefestival, which is a music festival in Uppsala, Sweden. Not only the local press, but also the framing by national press will be analyzed. Furthermore, it seeks to discuss what causes different frames.Material/Method: The material consist of 96 articles from 4 different newspapers which are being analyzed through a quantitative content analysis method inspired by Melin and Lange, and their ideas of identifying the main message of a text. The media framing of Uppsala Reggaefestival are compared to another similar music festival in Sweden, Arvikafestivalen. By using theories about media framing and media logic the results can, if not explained, at least be discussed.Main results: The study shows that Uppsala Reggaefestival is framed in a way that is focused on the problems within the festival, for example drug abuse.
Vem sa vad? : En kvantitativ innehållanalys av utrikesdepartementets, regeringens och resebyråernas kriskommunikation efter Tsunamikatastrofen.
AbstractTitle: Who said what? ? A qualitative content analysis regarding the UD?s, the government?s and the travel agencies after the Tsunami disaster.Number of pages: 38Author: Malin HanssonTutor: Peder Hård af SegerstadCourse: Media and Communication Studies DPeriod: Autumn 2006University: Division of Media and Communication, Department of information science, Uppsala UniversityPurpose/Aim: The purpose of the paper is to find out what person said what to the media and public after the tsunami catastrophe. The aim is to find out if there is any difference in how the government and communicators talked, and if those differences agree with the public opinion about these persons.Material/Method: The material is interviews with the relevant people on TV news. The first three days are included and the interviews have been transcribed and counted in sentences. The method is therefore quantitative content analysis.Main results: All of the analysed persons used the category Concrete action the most, which is what they are doing at the moment.
Undersökning av artikulation, nasalitet och förståelighet hos 16- och 19-åringar födda med isolerad gomspalt
This study highlights the differences in articulation, nasality and intelligibility between twenty 16-year-olds and thirteen 19-year-olds born with isolated cleft palate and control groups. The test groups are compared in a longitudinal perspective and based on earlier evaluations of velopharyngeal impairment. Significant differences were found between test groups and control groups using quantitative comparisons based on SVenskt Artikulations- och Nasalitets-TEst and NasometerTM. The longitudinal comparison also showed a positive but not significant development of the speech. Differences emerged in the comparisons based on velopharyngeal impairment but no significance analysis was made.
Bacterial contamination of eggshells in conventional cages and litter floor systems for laying hens in Jordan
In the country of Jordan, egg production is very important economically, but several bacte-ria are involved in food borne diseases transmitted from eggs or other poultry products. The most important are Salmonella spp., Campylobacter jejuni and Escherichia coli. In Jordan two different housing systems are used for hens in large scale egg production; con-ventional cages and litter floor systems. Eggs from four different farms were analysed and compared to see if a difference could be found regarding the presence of pathogenic bacte-ria on the egg surfaces between these two systems. Total number of aerobic bacteria was analysed, the presence of Salmonella spp., C.
Elektroniska konossement i Sverige. Elektroniska registreringar och reglerna för konossement.
While this summary is written in English, the paper published is written in Swedish.The paper concerns itself with the legal status of electronic transport records in a Swedish context. The main question asked is whether rules for bills of lading should be applied to electronic transport records, or if they should be treated according to general rules. A secondary question is asked; partially to help put the main question into context and partially to see whether the different legal regimes will lead to different solutions to an issue. This second question is if electronic transport records can effect the transfer of property (sv. sakrätt).
Social fotboll : En kvalitativ undersökning för att kartlägga skillnader i hur svenska respektive engelska fotbollslag kommunicerar på Facebook
Facebook is today a phenomenon that has connected the whole world. With millions of users this has become an attractive place for soccer clubs to connect with their fans. But in what ways are they using Facebook as a tool to connect with their fans?This essay aims to answer the question if it?s a difference in the way English and Swedish teams communicate with their fans on Facebook. The study was conducted with the use of telephone- and mail interviews.
I Sverige finns döden idag inte i grytan, utan i buffén : Hur ?vanliga människors? och teologers tankar kring vad som händer efter döden påverkas av individualiseringen, samt hur Svenska kyrkan ska bemöta individualiseringen, individualismen och människor
This study deals with the way how people think about life after death from the perspective of individualization. Individualization is something that affects all aspects of society, especially inSweden, which is of the most individualized countries. It also affects how people think about their own death.I have compared what people think about life after death with five theologians who have different views; Per Block, Sallie McFague, Krister Stendahl, Maurice Wiles and Jürgen Moltmann.I have compared the difference between individualism and individualization, andformulated some problems regarding how to think of individualism in terms of good and bad. Finally, I have finally discussed how I think Svenska kyrkan, the Church of Sweden, should meet the individualization, individualism and people´s opinion about life after death.The main question of the essay is partly unanswered because there is very little material and studies made about life after death contra individualization. One conclusion of my study, however, that I have reached is that people are allowed to choose freely nowadays, and that leads to a big difference in the system of beliefs.