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13603 Uppsatser om Difference-in- differences-metoden - Sida 7 av 907

Ackumulation av CO2 och CH4 i istäckta boreala sjöar : Hur förändras ackumulationen i sjöar påverkade av avverkning jämfört med referenssjöar?

The aim of this report was to quantify the accumulation of carbon dioxide (CO2) and methane (CH4) in ice-covered lakes in winter (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four boreal lakes (two affected by clearcutting and two untreated reference lakes) located in Västerbottens inland in spring. The lakes were found to accumulate on average 91, 55, and 84 mgCm-2d-1 during winters 2012-2013, 2013-2014, and 2014-2015, mostly originating from CO2. The concentrations of DIC (autumn and spring) were higher in the affected clear-cut lakes compared to reference lakes for all years, including the reference year (2012-2013) before clear-cutting. No such difference was found for CH4 or the ratio DIC:CH4.

Idrotts-självförtroende och motivation : Hos kvinnliga och manliga elit- respektive amatörspelare i bandy

The purpose of this study was to exam the possible differences in the experienced self-confidence and motivation among the elite players in bandy and amateur players in bandy. In addition, any differences between boys and girls within the same area to be studied. A total of 112 athletes participated of whom 52 of them classified as elite players and 60 amateur players, with 62 boys and 50 girls. The athletes filled at one point in the questionnaires The Sport Motivation Scale, Harter?s (1980) ?competence scale? and The Sport Confidence Inventory.

KONTROLLBERÄKNING AV ETT TAKRAS PÅ EN TENNISHALL I NYKÖPING : En jämförelse mellan Eurokod och BKR

?Boverket? the Design Regulations in Sweden, also called BKR has for a long timebeen the mandatory standard that has guided and regulated construction design. Butat the end of 2010 BKR was replaced with Eurocode. This report deals with thecomparison of these two standards when it comes to wood construction. Duringwinter 2009/2010 there were many roof collapses due to excessive loads on theroofs across Sweden.

Det redovisade resultatets värderelevans - före och efter IFRS

This thesis aims to investigate if there are any differences in the value relevance of yearly earnings announcements before (2000-2004) and after (2005-2009) IFRS were implemented for listed companies in the European Union. To assess the value relevance of earnings, an earnings response coefficient (ERC) is estimated using a linear OLS-regression model. The regression model uses accounting earnings per share as the explaining variable, with the corresponding return starting from (but not including) the previous year's earnings announcement date, ending at (and including) the current earnings announcement date, as the dependent variable. This study finds that there is no statistically significant difference between the estimated ERCs for the two periods. Although no statistically significant difference is found, data shows that the R2-values, which measure the explanatory power of the regressions, are higher for the period before IFRS.

Strategisk kommunikation inom fastighetsbranschen : En kvalitativ undersökning om skillnader och likheter i kommunikationen mellan ett kommunalt och privat bolag

The aim of this study is to find and highlight the differences and similarities in the strategic communication in two real estate businesses with different proprietaries. In order to achieve the purpose, theories and previous research on public relations, strategic communication, mediatization, framing and new public management has been used. The study was conducted through interviews with two different organizations, Lerstenen who is based in Umeå, and Övikshem who is based in Örnsköldsvik. The analysis and results showed that the key difference between the firms was the spontaneity that influenced the private one, in contrast to the public firm that relied on solid structures to manage their communication. The results also showed that differences in basis conditions both allowed and hindered the possibilities with the communicative efforts that the two firms could do..

Kulturers påverkan på upplevelsen av arbetslösa och meningen med arbete

The aim of the study was to distinguish if there was a difference between how work is perceived and how unemployed are viewed by people in collectivistic and individualistic cultures. A phenomenological approach was used in order to capture the participants life-worlds and their meaning constitution of a phenomenon, in this case the meaning of work and how unemployed are viewed. Subjects from different parts of the world, belonging to either a collectivistic or individualistic culture, participated in this study. Data was collected by self-reports which were analyzed by the method of MCA (Meaning Constitution Analysis) and the software Minerva. The results indicated that there were differences in how individuals from collectivistic cultures compared to individuals from individualistic cultures reflected about the meaning of work.

Social behaviour and time budget of breeding bulls

The aim of this study was to investigate the social behaviour and time budget of breedingbulls kept at VikingGenetics, Falkenberg in Sweden when the staff was off duty. It was ofinterest to see if there was any difference between bulls housed in group pens and bullshoused in individual pens. It was also of interest to investigate if there was any differencein the behaviour between the dairy breeds Swedish Red (SR) and Swedish Holstein (SH).Sixteen bulls were used in this study. Eight bulls kept in individual pens and eight bullskept in group pens were used. The individually housed bulls had a social gate with widerbars where the bulls could but their head and neck through to have social contact with thebulls in its neighbouring pens.

Prototyp för skolapp

The consultancy firm Knowit sought a smartphone application for communication between schools and pupils. Together with the students, it was decided to create the app both for Android and for iPhone. The project would produce a prototype app with limited functionality usable as a proof-of-concept in communication with potential customers.The questions that have characterized the work are; what features would be demanded in a school app, how to program user-friendly functionality and how to use object-orientation to design such an app. A question has also mentioned the differences between development for iOS and Android. The work was done in an iterative process in which the students worked together with planning, programming and testing.

Olika kommuner - olika förutsättningar? : En jämförande studie av två olika kommuners missbrukarvård och dess konsekvenser för klienten

Our main purpose has been to describe and compare two community's ways of organising and executing the social welfare sectors drug and alcohol abuse programs. We also wanted to explain the similarities and differences we found with the help of an organisations theoretical perspective. A second purpose has been to try to find out if the difference affects the clients possibility to receive equal care.To find out how the community's organise and execute their drug and alcohol programs, we interviewed two social workers in leading positions in Landskrona and Ängelholm. We have further more, to find out if the differences we found influencing the clients possibility to recieve equal care, completed an inquiry with fictional cases that all of the involved social workers, at each community, built an opinion upon.Our main result showed more simmularities than differences in our two community's ways of organasing and executing their drug and alcohol programs. We judged the clients possibility to adequate care to be equally sufficient no matter where he sought care, since our study showed that the social workers choice of approach did not differ significantly between the two communities, even though we found differences in their way to organise and execute the social welfare sectors drug and alcohol abuse programs..

Lättlösliga kolhydrater i vallfoder och i hästens grovtarm :

The purpose of this study was to investigate how the content of glucose, fructose, sucrose and fructan (WSC) varied in silage, haylage and hay harvested from the same field and at the same time of harvest. The study also investigated if differences in the WSC-fraction in the forages caused differences in composition of WSC in the colon of horses fed the forages. Hay, haylage and silage were harvested in the first week of June 2005 and stored for about nine months before feeding. Horses that were fistulated in right ventral colon and caecum were used, but only the colon fistula was used for sampling. The fresh crop and the conserved hay, haylage and silage were analyzed for chemical composition and WSC-fraction.

Arbetsvillkorens samband med sjukfrånvaro och sjuknärvaro  : En studie av hemtjänstpersonal

Sickness absence is a measure of health and is therefore an important issue. To get a complete picture it´s important to also include in the discussion sickness presenteeism, working while ill, and voluntary absence, staying at home without illness. Working conditions have been proven to play a role for the three aspects which is why this study aims to further investigate the connections between them. The method used was secondary processing on interview data collected from two home care teams, one having a low and the other a high sickness absence. The results showed that there were big differences concerning working conditions, where the group with the high sickness absence perceived more stress, less control and less support from colleagues and superiors.

Demokrati och lagprövning - Om rättfärdigandet av en positiv respektive negativ inställning till lagprövning som institution i demokratin

This essay concerns the issue of democracy and judicial review. The main focus is on the justification of both a positive and a negative attitude towards judicial review, and the values these justifications are based on. The analysis is made by textual analysis of four authors with different opinions of the subject matter: Robert Dahl and Jeremy Waldron who has a negative attitude towards judicial review, and Erwin Chemerinsky and Ronald Dworkin who are positive about it. In the analysis an analytic frame is used which consists of different dimensions and aspects of the problem of democracy and judicial review. The study shows that there are important differences in democratic values between a positive and a negative justification of judicial review.

Motiv till att fortsätta föreningsidrotta : En enkätstudie om 13 till 18-åriga föreningsidrottande flickor

Pupils, and most of all girls, drop out of organized sports in the ages 13-18. The purpose of this survey was to study which motives girls had to proceed in sports together with differences between certain groups. This study was based on a survey which included 86 responses from girls active in sports in 10 different compounds. The results showed that the most frequent motives to do sports were to have fun and to feel well. Differences showed were that the ones who trained more often and the ones who practiced more than one sport found that to work hard was an important motive, compared to the other groups.

In-store behaviour of healthy consumers- A study of behavioural differences between consumers who choose healthy products and consumers who choose regular products

This study examines if there are any behavioural differences in-store between consumers who choose a healthy product and consumers who choose a regular product. 540 observations were conducted were different variables were studied. Tthe results indicate that there are some variables that show a significant difference in behaviour at the point of choice between consumer who choose healthy products and those who choose regular products..

Maktavstånd och kommunikation - en studie av upplevda och verkliga kulturella skillnader och deras följder

Hofstede constructed a culture dimension called Power Distance, measuring the inequality of Power. Germany and Sweden have relatively similar values according to his world-renowned research. But a series of interviews of Swedish entrepreneurs in Germany shows that these perceive a large difference in inequality of power in the two countries. This essay seeks to explain the difference between these subjective-qualitative experiences and the objective-quantitative data of Hofstedes Power Distance Index. We propose that a combination of differences in communication, exercise and visibility of power and formality influence the way Power Distance is perceived.

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