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13603 Uppsatser om Difference-in- differences-metoden - Sida 32 av 907
Ekonomisk kompensation vid föräldraledighet, vadå? Utifrån arbetsgivarens perspektiv
The purpose with this essay was to analyse the view of parental leave in the public and private labour market. How does the economical compensation affect the parent's use of parental leave, with focus on the fathers "earmarked" months? Were there any differences in private companies and public organisations? We chose to look at past research and theories about father/men's usage of "60 day parental leave" from a point of gender and equality perspective. In regard to our questions we preformed qualitative, semi structural interviews. We picked people at random to interview at both private companies and public organisations that had or had not extra economical compensations except what the social insurance office paid during parental leave.
Framtagning av normalt referensintervall för RDW och retikulocyter på hematologiinstrumentet ADVIA 2120
Erythropoiesis is a complex and carefully controlled process which is mainly regulated by erythropoietin. Using flow cytometry cells in a blood sample can be analyzed one by one. ADVIA 2120 using flow cytometry for analysis of red blood cells (RBC) and reticulocytes. Red blood cell distribution width (RDW) is a component of the RBC method. RDW indicates size variation on erythrocytes and is measured as a percentage of the mean cell volume (MCV). By measuring the RDW anemia can be divided into makrocytic, microcytic or normocytic. Reticulocytes refract light more strongly than red blood cells because they contain some cellular debris. The number of reticulocytes in the peripheral blood reflects erythropoiesis in the bone marrow. The purpose of this project was that by approved methods to establish reference ranges for the parameters, RDW and reticulocyte counts.The individuals who participated in the study, n=124, were considered healthy and had varying ethnicity. Reference subjects had not donated blood the last six months and participation in the study was voluntary.The statistic evaluation includes examination of distribution, and reference ranges for both men and women were established using the 2.5:t and 97.5:t percentiles. The calculated reference interval for RDW was between 12.0 ? 14.3% and the calculated reference interval for reticulocytes was between 38.0 ? 112.8 x109 cells/L. The results showed a significant difference between males and females for the parameter reticulocytes was seen. The difference indicates that different reference ranges should be established for men and women (p<0,0001). No significant difference between males and females were seen for RDW (p=0,74) indicating that the same reference ranges can be used for both men and women. .
En studie om skillnader i statliga och privata bolags hållbarhetsredovisningar
This study examines differences between private and state-owned companies' sustainability reports for the year 2010. Three state-owned companies and three private companies in three different industries have been examined. An effort has been put to explaining if differences are related to the owner or to the industry. The basis for this is that the state owned companies are required to present a sustainability report according to shareholder demands, while the private owned aren?t obligated to present their sustainability efforts.The study has a qualitative basis, and empirical data have been collected by the authors.
"Det beror ju inte på vart man är utan hur man känner" : En studie om ungdomars användande av svordomar och könsord i skolan
This essay is about young peoples? use of swearwords and four-letter words. Through a questionnaire we have examined in what way 102 Swedish high school students use swearwords and four-letter words. We have also examined if there are any differences between girls and boys linguistic usage and what these differences may be. Our results show that almost all youths use swearwords and that a majority of them use four-letter words as well. The results also show that there are not any major differences between girls and boys.
Differences in host plant preferences and olfactory physiology between populations of the moth Spodoptera littoralis established in Egypt and Benin
This study was made to compare and distinguish any differences in olfactory recognition and
host plant adaptation between two strains of cotton leaf worm, Spodoptera littoralis. The
populations used were established in Egypt and Benin, Africa. The documentation consisted of
information about (1) each of the strains development through the larval stage up to pupation on
diets of cotton, clover and cowpea. (2) Their oviposition preferences as adults between cotton,
clover, cowpea, maize and cabbage. (3) Electroantennographic recordings to quantify any
possible responses to plant volatiles.
Throughout the diet experiments the larvae from the Benin strain showed significantly a better
development between artificial, clover, cowpea and cotton respectively, while the Egypt strain
had significance between artificial, cotton and cowpea/clover as diet.
Also noted was how the strains substantial development of weight differentiated if fed the cotton
diet, followed by the cowpea diet showing that the Benin strain would develop a higher body
mass on a cotton diet as well as on a cowpea diet.
This trend was however switched once the pupal stage was reached, where the Egyptian strain
contained a significantly greater body mass than the Benin strain on the artificial and the Benin
strain a greater on cowpea, which suggests that in the end, the Benin strain develops significantly
better on cowpea while the Egypt strain develops better on an artificial diet.
During the oviposition experiment that both stains showed a clear difference in hierarchy of host
plants considered suitable for oviposition, where the Egyptian strain is significantly more
attracted to clover than the Benin strain.
Also showed with electroantennographic recordings and significant values was the higher
sensitivity the Egypt strain had towards (E)2-hexenal, (E/Z)-b-ocimene, (Z)-3-hexenyl acetate,
Nonanal, (-)-linalool and ?-myrcene when compared to the responses from the Benin strain..
Vilka spänningar kan uppstå mellan en yngre teamledare och äldre medarbetare och kan de hänföras till generations-/åldersskillnader? Hur påverkar dessa teamdynamiken?
Earlier research has shown that generational differences between younger-supervisors and older-workers may cause tensions that lead to team ineffectiveness. There is however still a lack of research in this area. This thesis presents possible tensions that might occur between a younger supervisor and an older worker due to their age and generational affiliation, and how these tensions affect the team dynamics. The empirical data collection was limited to the boundaries of the dental care industry where these generational/age differences between younger supervisor and older worker are common. The thesis looks at the tensions from a qualitative perspective and data was collected in the form of in-depth interviews with selected dentists and nurses.
Fria skolval och lärarfacken : En jämförelse mellan svensk och fransk skoldebatt
This essay compares the public debate in Sweden 1992 caused by the reforms introduced by the then government giving parents a free choice of schools for their children with the current debate in France about proposals for a similar law there. The study concentrates on the positions taken by the teachers trade unions, in Sweden Lärarförbundet and Lärarnas Riksförbund (LR) and in France SGEN-CFDT. To do so it is necessary also to study the arguments given for and against the proposals by the political parties.Some of the differences between the debates can be attributed to different circumstances. The Swedish reform was related to the opening up of possibilities to run private schools, which previously had been rare in Sweden. The French debate has no such connections.
"Heja Sverige! Heia Norge!" : En kritisk diskursanalys av nationalism inom svensk och norsk sportjournalistik med fokus på bevakningen av Skid-VM i Falun 2015
The purpose of this essay, entitled ?Heja Sverige! Heia Norge?, was to study the difference in nationalistic tendencies between Swedish and Norwegian news coverage of the 2015 FIS Nordic World Ski Championships in Falun, Sweden, which took place between 18 February and 1 March 2015. It was the fourth time the event took place in Falun, previous games having been held in 1954, 1974 and 1993.I performed a critical discourse analysis of a total of twelve articles split over two race days ? one where Swedish athletes outperformed Norwegian athletes and vice versa. I did this order to study if the news coverage in each of the two countries? most promininent sports papers; Sportbladet in Sweden and VG Sport in Norway, was charaterized by a nationalistic discourse, as well as comparing the two to find similarities and differences between them.Having based my analysis on theories and previous research regarding media events, nationalism, national identities, ?us and them?, imagined communities et cetera, I came to the conclusion that a nationalistic discourse is, without a doubt, present in the news coverage ? something very unique for sports journalism as a genre.
Idrottslärares tankar kring hälsa : Hur uppfattar lärare i idrott och hälsa begreppet hälsa?
The goal with this study have been to investigate how teachers in physical education perceive health as a concept, and how they choose to work with in the classes they teach. Health as a concept can be somewhat diffuse and as the Swedish curriculum doesn?t define the concept the teacher are given a freedom in interpreting what health is and how it will be taught to the students. This makes it interesting to study if teachers perceive health differently and if that affect what they are teaching their students.I used interviews as a method to answer my questions and the results show that there wasn?t much difference between the teachers in how they perceive health and how, and what, they teach their students.
Utvärdering av tillverkningsmetoder för svarvbommar
On today?s competitive market, it is difficult to achieve profitability trough high prices on manufactured products. Profitability must be obtained through low manufacturing costs, high quality and short lead times. One of the companies on the market is Sandvik Coromant, manufacturer of tools and chips for metal cutting. This master thesis investigates the methods of manufacturing for boring bars at the manufacturing unit GVH4 at Sandvik Coromant in Gimo, Sweden.
Arkitektur i Mayariket : en jämförelse mellan Palenque och Tikal
The classical age cities of Palenque and Tikal where ones great Mayan bastions with extraordinary architecture. This architecture still fascinates modern archaeologies and historians alike. Still much of the architecture in the Mayan cities had the same style and function, but could diverse from town to town. This is the case of Palenque and Tikal. They share much of their buildings like temples, palaces and ball courts.
Tillgänglighetens frihet : En studie av Vägverkets måltolkning
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.
Hälsoutbildningens påverkan på psykologiska resurser hos chefer och anställda
This study is a quantitative study designed to examine whether training in health issues may have contributed to the increase in head managers' psychological capital (PsyCap). Construction consists of the following components: self confidence, hope, optimism and resilience. A high PsyCap considered beneficial in organizational change and steer towards the positive development and helps individuals in stressful situations. The results show an increase of characteristics such as hope and optimism among managers (N = 15) who have undergone training in health issues compared with managers who have not undergone training. However, the tests show no significant difference in head managers' attitudes to health breaks, not the severity of granting health breaks in the groups as a result of training.
Provisionsbaserad lön och prisskillnader mellan kanaler ? en källa till kanalkonflikter? : En fallstudie bland företag i Sundsvall
Today?s companies offer their products and services through multiple distribution channels in an increasing extent, in order to reach bigger markets and more customers. Multiple channels result in an increased risk for channel conflict.This essay is an exploratory and descriptive study with the purpose to explore some companies? channel conflicts on the basis of sales commission and price differences. A case study has been made at two different companies and the empirical material has been collected with qualitative interviews.We found more channel conflicts in the company that uses sales commissions than in the company that doesn?t.
Kromatinstabilitet som grund för kvalitetsbedömning av hingstsperma :
This study is part of a project to evaluate and develop metods to control the semen quality in stallions. The study was carried out in cooperation between SLU and Flyinge AB. The objective of the study was to analyse
-if there are individual differences in sperm chromatin integrety between different stallions
-if there is a correlation between subjectively evaluated sperm motility and sperm chromatin integrity
-if sperm chromatin integrity is changed after selection of the semen with a centrifugation method through the silica-spheres, gradient or a single-layer, i.e to use the chromatin integrity analysis as a method to evaluate the selection method.
The use of chilled transported semen has increased a lot during the last 10 years, especially among the Swedish warmblood breed. Because the foaling percentage has decreased with the increased use of chilled transported semen, there is a need to develop methods to control the sperm quality. Evaluation of the chromatin integrity could be one way to evaluate the quality of the semen.
Chromatin is the DNA in the nucleus of the sperm.