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13603 Uppsatser om Difference-in- differences-metoden - Sida 34 av 907

Precommercial thinning stumps´susceptibility to Heterobasidion spp : a comparison between high and low Norway spruce and birch stumps : a measuring of the efficacy of Phlebiopsis gigantea stump treatment

Each year, Heterobasidion spp. is a major cause of economic losses to forestry in the northernhemisphere, including Sweden. New results indicate that pre?commercial thinnings could be at riskfor Heterobasidion spp. infections.

Hur kan organisationer gå från att vara samlare av informtion till att bli nyckeltalsanalytiker? : En fallstudie på Trafikverket

In 1993 the internal market within the European Union was formed and ensured free movement of goods, services, capital and people. This led to the removal of trade barriers between members of the European Union. When opening up for competition, price differences between countries decreased and more jobs were created. A single currency was introduced by eleven countries in 1999 with the goal of reducing transaction costs, eliminating exchange rate risk and to further simplify trade. In 2001 Greece joined the collaboration and introduced the euro.

Carbon sequestration in the pastoral area of Chepareria, western Kenya : a comparison between open-grazing, fenced pastures and maize cultivations

Carbon sequestration through restoration of degraded pastoral soils is an advocated way of mitigating global warming, and simultaneously alleviating poverty. An often proposed rehabilitation strategy is fencing of pastures, a method that was introduced to the farmers of Chepareria by the Vi-Agroforestry organization in 1987. The landscape of Chepareria changed from eroded, over-grazed grasslands, to a mixture of open-grazed commons, pastoral enclosures and cultivations. The aim of this study was to investigate (1) if the soil organic carbon (SOC) is higher inside the enclosures than on the open-grazed commons, (2) if SOC is affected by duration of fencing and (3) what effect cultivation of pastures has on the SOC. Estimations of vegetation cover and deep profile (100cm) soil sampling was performed on six clusters containing; (1) open-grazing (OG) (2) 1-5 years of fencing (FENCED(1)), (3) 7-10 years of fencing (FENCED(2)), (4) 15-23 years of fencing (FENCED(3)), (5) maize from OG (A(OG)), (6) maize from fenced pasture (A(FENCED)).

CI-metoden och dess effekter på barn och ungdomar med CP-hemiplegi : - en systematisk litteraturstudie

CI-metoden är en ny behandlingsmetod för barn och ungdomar med CP-hemiplegi. Metoden innebr att man genom en restrikion på den intakta armen och handen främjar rörelse i den hemiplegiska armen oc handen i syfte att förbättra användningen av den armen och handen i dagliga aktiviteter.Syftet med litteraturstudien är att beskriva CI-metoden och dess effekter på funktions- och aktivitetsförmåga hos barn och ungdomar med CP-hemiplegi.För att få svar på studiens syfte och frågeställningar gjordes en systematisk litteraturstudie som baseras på vetenskapliga artiklar om effekter av behandling med CI-metoden på barn och ungdomar med hemiplegi till följd av en CP-skada. Studien baseras på sammanlagt 12 artiklar, varav 11 studier från åren 2001-2006 och en studie från 1997. Artiklara är sökta i AMED, Cinahl samt Medline.Resultatet visar att barnen och ungdomarna genom behandling med CI-metoden gjorde förbättringar i både funktions- och aktivitetsförmåga. Många av de förbättringar som gjorts under behandlingen kvarstod även vid uppföljningen, fyra veckor till sex månader senare.

Bonden i Graven Bredvid - En osteologisk studie av den medeltida befolkningen i Norra Nöbbelöv och deras skador på skeletten

This paper is the result of an osteological study of the skeletal remains uncovered during an archaeological excavation of the medieval cemetery in Norra Nöbbelöv. The purpose of the study is to compare the material from the rural site (Norra Nöbbelöv) with materials excavated from the old medieval graveyards in the city of Lund. The aim is to try and shedsome light on the question of whether there is any difference in the occurrence and frequency of fractures and osteoarthritis in the materials compared. The first section of the paper consists of a short historical background of Norra Nöbbelöv and Lund, a chapter on ethics, general results of the analysis and the methods used. Thissection was co-authored by Ulla Zagal-Mach and Åsa Strandh.

Digital Storytelling

The purpose of this paper is to analyze and map out the cyber culture of the Internet and its all users, identity, design theories and services. How people communicate and how they build up their identities are some of the baselines. I will also discuss the important aspects of Interaction design and how this can be used in a Community for digital storytelling. The Internet, or new media, was founded in the 60?s by some great philosophers (McLuhan, Rheingold, Lambert and more). With influence from their books I will discuss and analyze what kind of media the Internet is and how it can be seen as extensions to our senses, as McLuhan claims.

Bibliotekariebilder i dagens platsannonser. En diskursanalys.

The aim of this Masters thesis is to examine the librarian discourses that can be identified in the job advertisements of today, to examine how the discourses differ and also how these discourses might influence the librarian profession and its status. The method of investigation is a qualitative analysis of printed sources, using Ernesto Laclaus and Chantal Mouffes discourse theory as well as the theory of professions as a theoretical base. The thesis shows that two discourses can be identified in job advertisements for 2004, one public librarian discourse and one scientific librarian discourse. The major difference between the two discourses are work tasks where the public librarian discourse very often contains areas of responsibility and development work, whereas the scientific librarian discourse often contains administrative work tasks. Other differences include a great demand for driving licences and an interest in children and youth in the public librarian discourse, something which is not asked for at all in the scientific librarian discourse where there is a great demand for knowledge of languages instead.

Försvarsmakt i förändring : Svenska försvarsmakten 1988-2004

This essay is a case study about the Swedish Armed Forces during the years 1988-2004; when it transformed from a force constructed to meet an invasion, to an international force with the primary mission to help subdue conflicts around the world. The essay uses texts and documents to examine what happened between these years and to find out what drove that change.By asking the questions A) ?What happened between the years 1988-2004?? and B) ?What is the difference between the Armed Forces in 1988 and in 2004??, it is possible to also ask C)?Why did the Swedish Armed Forces change??.The essay is divided into three main parts; 1) a theory-part focused on three main theories of international relations: liberalism, realism, and constructivism, 2) a historical case study examining the evolvement of the Armed Forces during these years, and 3) a conclusions section that uses thethree theories of international relations to examine why this change happened.In examining the historical period and making conclusions about the differences between these years it was also necessary to construct a scale of military power, on which the historical case study is based..

Optimism och stress : En enkätundersökning om förhållandet mellan självupplevd optimism och stress

The idea with this study is to examine if there are a connection between how optimistic people are in relation to how stressed they feel. The result from the survey is based on materials from a questionnaire has been sent to fifty persons of varying age and sexes. The questionnaire has also been sent to students from Karlstad University but also to friends and acquaintances. The data is measured with SE- and LOT-tests. The issues concerned in which scope respondents experiences themselves stressed and optimistic and how the connection is between experienced stress and optimism in relation to results on the figure tests.

Undersökning av sambandet mellan strålningstemperatur och NDVI i Sahel

Several studies have analysed the relationship between Normalised DifferenceVegetation Index (NDVI) and radiative surface temperature. A main goal for moststudies have been to find the best method for carrying out land cover classificationsand to study land cover changes, based on a combination between the twoparameters. Since atmospheric components have a significant influence on bothparameters, most applications were based on multi-temporal data. The quality of theindividual values in such a combination is improved, but the biophysical justificationis uncertain. This study presents a different method, based on only the combination ofvalues that have been registered the same day and about the same time of the day.125 daily images of NDVI and 250 images of radiometric temperature were used inorder to analyse the relationship between (1) NDVI and radiative temperature and (2)NDVI and relative temperature difference between early morning and mid-day.Results between NDVI and radiative temperature show a significant negativecorrelation on areas where a distinct growing season develops, and a strong positivcorrelation where vegetation is abscent throghout the season.

Tillagning i mikrovågsugn och dess effekt på livsmedel : En jämförelse med konventionell tillagning

Microwave is a time- efficient device for heating and reheating of foods. Despite the fact that its effects on foods have been evaluated during a long period of time, without any more negative effects shown compared to conventional cooking, one third of the Swedish population believes (in 2010) it accounts for a higher loss of nutrition. This literature review aim to compile studies regarding how food is affected by cooking in microwave, with respect to cooking losses, nutrition, secondary metabolites as well as sensory and textural aspects and compare it with conventional cooking. The compilation shows that different combination of effect (W), time and amount of water during microwave cooking have different effects on foods. The contents of proteins, vitamin B and carbohydrates are generally higher after microwave cooking, while anti-nutritional substances are affected much less during conventional cooking. This also depends on if it is of animal or non-animal origin. However, for the majority of nutrition values the differences are quite small.

Tillagning i mikrova?gsugn och dess effekt pa? livsmedel : en ja?mfo?relse med konventionell tillagning

Microwave is a time- efficient device for heating and reheating of foods. Despite the fact that its effects on foods have been evaluated during a long period of time, without any more negative effects shown compared to conventional cooking, one third of the Swedish population believes (in 2010) it accounts for a higher loss of nutrition. This literature review aim to compile studies regarding how food is affected by cooking in microwave, with respect to cooking losses, nutrition, secondary metabolites as well as sensory and textural aspects and compare it with conventional cooking. The compilation shows that different combination of effect (W), time and amount of water during microwave cooking have different effects on foods. The contents of proteins, vitamin B and carbohydrates are generally higher after microwave cooking, while anti-nutritional substances are affected much less during conventional cooking. This also depends on if it is of animal or non-animal origin. However, for the majority of nutrition values the differences are quite small.

Värderingsskillnader mellan amerikanska och svenska bioteknikbolag

Background: Companies with a high level of research, such as biotech companies, rarely generates any profit in the begining. Mostly their history is short and their pipelines usually consists of one or a few products only. Significant for the line of business is also a future very uncertain, where relevant objects of comparison are few. Altogether the facts above makes valuation of Biotech companies difficult. Swedish Biotech companies, compared to their american competitors, seem to be of relatively low value.

Gräsrotsrörelsen i Israel - Palestina: helt överflödig? En studie om fredsbyggande gräsrotsorganisationer i Israel ? Palestina

In this thesis we have tried to answer the question of whether or not the peaceorganizations working in Israel and Palestine have an impact. We have answered the question by analyzing six different organizations; three who work with children and the other three with women issues. The analysis contains a case study of each organization and then a comparison between the two groups. This study is built on theories about; grassroots organizations, women in organizations and intergroup communication. Our conclusions in this thesis show that there are some similarities between the groups as well as there are differences.

Brukarorganisationers syn på ICF som arbetsredskap ? och dess betydelse för erkännande och omfördelning

This study was about disability organisations opinion concerning ICF: s importance in their work to receive the same recognition and human rights for their members as citizens. The aim has been to elucidate disability organisations awareness about and use/non use of ICF and to increase the understanding of ICF: s importance for recognition and redistribution. Three different methods have been used: literature study, questionnaire survey, both on counties' (27) - and national (26) level and interviews (5) on national level. There is also a distinct difference between the disability organisations that represents people with visible impairments, who don?t think that ICF is so useful and they that represent people with invisible impairments, who thinks that ICF is a useful tool.

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