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7179 Uppsatser om Fixed effect modell - Sida 20 av 479
Fortkörning - en inkomstfråga? : En studie utav inkomstens påverkan på benägenheten att köra för fort
The purpose of the thesis is to investigate whether a higher income make individuals more likely to exceed the speed limit. In addition to income the variables age, sex, perception of the speed of the average driver and offense history for the last three years are taken into account.The method used is based on a survey performed at the mandatory annual motor-vehicle inspection (Bilprovningen). 177 individuals were asked to participate, of these, 124 completed the survey which in turn left us with 117 usable observations.The analysis is based on two forms of regression, a linear regression and an ordered logit regression to confirm the results for the ordinal data.The final model indicates a result where income and age are statistically significant. Sex is considered insignificant for our data material and is excluded from the model. Age has a negative effect on the propensity to exceed the speed limit while income has a positive effect.
Elevinflytande : En undersökning utifrån ett lärarperspektiv
This survey is a qualitative study about how teachers see on the concept student leverage and what they say about how they in practice work with it. We have chosen to examine the subject from a teacher?s perspective, because almost all investigations and literature, that we have found, discuss student influence from a student?s perspective. That?s why we are interested to examine what teachers think of the subject.
Om att kreativt charma B2B
Previous research has recognized that advertising creativity can result in positive signaling effects for consumers, thus proving creativity to be a useful tool and not a wasteful effort within marketing. However, research within this matter has only lightly touched upon the outcome of signaling effects within a business-to-business context. Since other implications prevail within a B2B market - for instance the professional position in which individuals act, the existence of buying centers, and the heavy weight placed on most decisions - the conception and influence of advertising creativity may be altered. This paper aims to give an overview of whether increased advertising creativity results in positive signaling effects among individuals employed within a B2B context. Furthermore, the paper aspires to examine the potential influence of aspects prevailing within B2B markets, such as the need for contemplating the desires of numerous individuals involved, on the outcome of advertising creativity.
De kan säga dig vad en pommes frites är, men inte en potatis... : En studie över amerikanska överviktspreventiva skolbaserade program
This study has focused on obesity prevention efforts in schools in the United States of America. The study was conducted in two states, Oklahoma and New Hampshire. In New Hampshire, the study was focused on more minor efforts which were the "CSHP", HEAL, Early Sprout, FIT, AFHY, 5210, and Kids CATCH Club. In Oklahoma, the focus on the study was on the program It's All About Kids.Method: Unstructured interviews and observation, analysis from an national policy document. A total of seventeen interviews conducted, seven of them in New Hampshire and ten in Oklahoma.
Estetiska lärprocesser och visuell kommunikation : En metodtriangulering för att integrera dubbla perspektiv på K3, Malmö Högskola
Aim: The study aims to investigate the distribution of grades between students in a practical subject and in a theoretical subject.The problem:What is the grade distribution in physical education and mathematics, with respect to gender, socioeconomic background, parental education, ethnicity, and physical activity?Method:To answer the aim of the study a quantitative method was chosen. As the collection method used was questionnaires to 620 students in the 9th grade in Stockholm. Of the 620 questionnaires, 597 questionnaires were used for the static analysis. The method of analysis used cross tables and logistic regression analysis.
Produktionsskillnader vid olika antal sortiment
This study is done together with Sydved AB in the summer of 2012. The purpose of the study is to analyse how different quantity of assortments influence the production for forwarders and harvesters with multiple tree handling aggregate in thinning, by different tree volumes. To make this analyse a time study was performed where three entrepreneurs work has been analysed. Beside the analyse, of different quantity of assortments, has also been analysed how the tree volume and a forest fuel assortment effect the production.
The result of this study shows that the quantities of assortments have a significant meaning for the production. The biggest differences are most distinct between one and three assortments in the smaller tree volumes where production goes down if the quantity of assortments increase.
Vindfällning i naturliga och skapade bryn och kanter :
The aim of this work was to study if the edge of the forest is more resistant to heavy winds than the trees located further in from the edge, and how this edge effect changes between different types of tree species and site types.
The data was collected from an electric power line going from the north to the south of
Sweden. The mean value of the clearcutted area around the power line was 120 meters. The
main direction of the storm in January 2005 was west-southwest and thus the power line was a perfect place for gathering a large data set.
The main parameter studied was the damage frequency at the edge of the forest compared to
the trees located further in from the edge (up to 100 m from the power line). Tree species mixture, soil moisture class, soil type, topography, stand height, stand height of the stand on the other side of the power line and wind exposition was estimated.
The results showed a distinct edge effect. The edge of the forest had clearly lower damage frequency for all tree species.
A marked difference was observed between tree species and damage frequency.
90-talskrisens effekter p? syssels?ttningsstrukturen f?r Lund och Malm?
The employment structure consists of different sectors, whose share of the total employment rate is all part of an economic structural conversion according to this thesis applied theoretical approach. A structural conversion, which consist of recurring crises, such as the financial crises in the early 1990s. This crisis and its effect on the Swedish economy is well-documented, while the shortage regarding the effect on a smaller scale, in a local and regional context, provides this thesis purpose. More specifically, a comparison between the two neighbouring towns of Malm? and Lund, will constitute the local contexts in this research.
Kommunikation : Då köparen inte är användaren
Dagens aktuella litteratur innehåller inte någon analys av kommunikationsprocessen vad gäller sändare till mottagare, hur ser kommunikationen ut när mottagaren inte är samma person som köparen, som i en ?förälderbarn? relation? Detta är en vinkel som vi tycker bör belysas i ämnet ?kommunikations- teori?. I vår uppsats har vi valt att studera denna vinkel och har därefter utvecklat en modell över just denna typ av kommunikation, där köparen - föräldern, av produkten inte är samma som användaren ? barnet. Modellen grundar sig på den klassiska kommunikationsmodellen; Elementen i kommunikations processen.
Vingkonstruktion till stor RC-modell av C-17 Globemaster
Rapporten behandlar konstruktion av vinge till en radiostyrd modell av Boeing C-17 Globemaster III. Modellen kommer att tillverkas för försäljning av företaget Mil tech. Spännvidden på vingen är omkring sju meter och med den storleken kommer den troligtvis bli det nuvarande största radiostyrda flygplan som konstrueras för försäljning. Rapporten beskriver konstruktionsförslag för delning av vinge, bak- och framkantsklaff, skevroder, luftbroms, motorpyloner och de valda lösningarna samt vilken vingprofil som modellerandet utgått från. Rapporten behandlar inte själva CAD-modellerandet..
Turbinkretspump system - Kraftvärmeverket i Borås
The Rya power plant in Borås produces district heating, district cooling and electricity. The plant is owned by Borås Energi och Miljö AB and is run by Dalkia Facility Management AB.In order to get the best heat exchange from the district hot water a pair of twin pumps and a turbine circuit pump are used as return pumps. Turbine circuit pumps are used to increase the pressure through the heat exchangers at the power plant. The pumps are in use when the flow is over 2 000 m3 h-1 and during the summer when re-cooling is used to improve the effectivens of the heat boilers.Since the pumps, that are parallel connected, rotating at a fixed rate per minute, the pressure is regulated with regulating valves. This report shows that during the 4,300 hours that the pumps where in use, energy corresponding to 590 MWh was wasted.
Modifierad Merton modell - användbar för ett företags kreditvärdighet eller inte?
Syfte:Syftet med studien är att se om ett samband förekommer mellan Moody?s ranking och beräkningar utförda med en modifierad modell av Merton för ett visst antal europeiska företag. Syftet är vidare att dra slutsatser och tolkningar vad gäller tillförlitligheten och relevansen kring att använda den modifierade Merton modellen som ett kreditmått. Metod:Tillvägagångssättet för att erhålla resultatet för studien går ut på att för sju olika europeiska länder välja sju företag för respektive land. Utifrån de valda företagen har historisk data insamlats i form av aktiekurs och skulddata vilka är utgångspunkten för de beräkningar som utförs med en modifierad Merton modell.
Drönarattackers effekt på terrorism : fallet Pakistan
The United States use of Unmanned Combat Aerial Vehicles (UCAV) or drones for targeted killings of terrorists has been on the rise in recent years and the method has become the core element of president Obamas strategy in the war against terror. This study examines the deterrent effect of targeted killings on terrorism using UCAV/drones as a method of counterterrorism. Building on the literature on counterterrorism, UCAV, targeted killings, deterrence theory and statistics on terrorism the study provides a case study of the CIA drone operations in Pakistan between the years 2004-2010. The goal has been to analyze drone operations and the extent of terrorism from the beginning of the drone campaign until 2010. This as a means of identifying possible trends in terrorism activity due to the occurrence of drone strikes.
Digital elevdokumentation : från implementation till praktiskt arbete
It is statutory that teachers shall document their student's development of knowledge in different subjects. The teachers employed by Sundbybergs municipality have been commissioned to do the documentation in the web-based electronic system Projekt- och Omdömesdatabasen, P.O.D.B. The purpose of this study was to investigate witch effect the IT-solution P.O.D.B has brought for the teachers in their task of student documentation. By conducting interviews and questionnaire studies I have been looking for answers to if the target achievements have increased by using the IT-solution, and if the teachers are aware of what they may or may not write about their students in the system. The conclusions I have been able to draw through my studies are that the teachers have accepted the commission to use P.O.D.B.
Den slopade förmögenhetsskattens effekt på arbetsutbudet
In this paper I study how the repeal of the Swedish wealth tax (1 of January 2007) has affected people´s labour supply behaviour. This particular issue is relevant because it may help us understand some of the effects of the earnings tax changes that have taken place in Sweden. Accoring to standard economic theory a repealed wealth tax is similar to an income effect for the persons who previously paid the tax. That means that they theoretically will want to consume more leisure, that is decrease their labour supply. The method I am using to test this hypothesis is a difference-in-difference approach where the treatment group consists of persons who previously paid the tax and the control group of comparable persons who did not pay the tax.