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14305 Uppsatser om Difference- in- difference analys - Sida 20 av 954

Slitundersökning för jordbearbetning och sådd :

In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk harrow we have looked at Amazone Catros and Väderstad Carrier. We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.

Pre-workout : hälsa eller ohälsa?

Pre-workout (PWO) is one, fast-growing, supplement on the market that promise fat burning, bigger muscels and energy and by buying these expensive supplements, you can get your dreambody faster than others. This study is mainly about researching why people use PWO and what experiences they have about using these supplements. By using a qualitative method I have found out that the participants mainly uses PWO to get energy and focus. This study also shows that my participants thinks that there is a difference in energy between using and not using PWO..

Viltanpassad röjning längs skogsbilvägar som en foderskapande åtgärd för älgen

The moose is a keystone species in the boreal forest ecosystem, but the dense Swedish population do cause some serious problems. From a forestry perspective, their browsing on young Scot pine (Pinus sylvestris) causes extensive losses of revenue. Adjusting the cleaning along roadsides of low trafficked forest roads can favour the production of plant species preferred by the moose. This is thought to redirect the moose´s browsing to the roadsides and thereby decrease the damages on commercial forest.The aim of this study has been to present a first evaluation of the vegetation in roadsides, one year after wildlife-adapted roadside clearing has been undertaken. In the wildlifeadapted clearing operation, the roadside was widened by removal of some trees in the forest edge whereupon a complementary clearing with a conventional chain flail was conducted.

Följsamhet till basala hygienrutiner på en vårdavdelning

The purpose of this work was to investigate the adherence to basic hygiene routines among staff and to investigate if there is any difference between the adherences in diverse professions. The purpose was also to study how staff rates their own adherence to current guidelines. Data for the study were collected through observations and questionnaires. Altogether 35 people were observed and 15 answered the questionnaire. Maximum adherence was found in the category of "hand disinfection after patient contact" with a score of 96%.

Bakterietillväxt i strömedel till mjölkkor

The resting area is the most important place in the barn for the dairy cow, sometimes called the heart of the free stall system. Inadequate design of the lying area, and lack of or poor quality of bedding materials may reduce the hygiene of the stall. Poor management regarding the cleanliness of the resting area may lead to poor animal hygiene and increased bacterial growth. This in turn will lead to increased risk for environmental mastitis as well as impairing milk quality through contamination with spores. In this literature study the most commonly used bedding materials; straw, sawdust, wood shavings, clean sand, recycled sand, peat and recycled manure solids, are compared to one another with regards to their ability to resist bacterial growth. Effects of adding hydrated lime to bedding materials have also been studied. Most bacteria need humidity and prefer a quite high water activity to be able to grow.

Färdvägsmiljöer vid cykling för transport : En studie av en modell om uppfattningar av färdvägsmiljön hos cyklister

SummaryAimThe study examines a theoretical model developed to capture cyclist´s perceptions of the route environment. The survey focuses on if level two and three in the theoretical model captures what it´s intended to do. More specific we ask ourselves how the three appraisals (unsafe/safe by traffic reasons, stimulating/inhibiting route environment, unsafe/safe by other reasons) in the model´s second level relates among themselves and if these three appraisals can capture the degree of environmental well-being/unwell-being in the model´s third level. The questions were: Do the three appraisals differ among themselves? What is the difference/-s in such cases? And, is there a correlation between any of the three appraisals and environmental unwell-being/well-being? What is the correlation in such case? MethodThe gathering of data was done through questionnaires.

Skriv kort och få fler att tala - Ett försök med kortskrivande kopplat till samtal

This papper i about trying en educational method called writing connected to dialog. This is tried on adult students studying to work in Swedish day care. The purpose was to see if this method could make a difference in classroom democracy..

Utvärdering av kognitiv beteendeterapis (KBT) effektivitet : En systematisk replikation

AbstractA systematic replication study was conducted at the training site at the University of Karlstad. Student therapists performed cognitive-behavioural therapy (CBT) as a part of their master?s degree in psychology.  The systematic replication that took place was based on the work of Hiltunen et al. (2013), who evaluated the efficacy of CBT treatment conducted at the training site previously mentioned.

Traditionella och samtida bottenbj?lklag: med fokus p? isoleringsmaterialen

The survey aims to shed light on traditional and contemporary bottom floor frames, their construction and different insulating materials; mineral wool, wood shavings and charcoal. The purpose is to analyze and discuss the similarities and differences as well as the pros and cons with a focus on the construction and the different insulating materials. The work has been limited to comparing two different wooden floor frames. The first one is based on a real floor frame from an older building, this example is presented as the traditional floor frame in this study and are from around 1940. The other floor frame is presented as a contemporary floor frame and is based on wood building type descriptions and literature.

VEM V?LJER VINSTEN? P?verkar den politiska f?rgen p? det kommunala styret hur mycket vinst som f?rs ?ver fr?n de kommunala bostadsbolagen?

Every year, Swedish municipalities transfer considerable amounts of profit from public housing companies to the owner municipality. Municipalities are allowed to do this, provided that the money is used to pay for certain purposes. But there are no legal repercussions if they do not comply. Not all municipalities choose to transfer profits. Based on partisan theory, this difference could be explained by the political governance of the municipality.

Tandvårdens betydelse för hästens användning och hälsa :

We choose to revise the need of dental care in horses. How important is the dental care for our horse´s use and for their health? The objective of this work was to see if there is a difference between Swedish veterinaries and educated horse dentists opinion concerning horse dental care. As horse owners, we have experienced that there is a conflict between the opinions of these two occupational groups. Some veterinarians say that there is a tendency to use to much treatments or instruments in horses mouths, while some horse dentists says that there is not enough treatments done in horses´ mouths.

Hur påverkar ålder och fetthalt laxsmoltens utvandring till havet?

AbstractPrevious studies have shown that wild smolt have 2.5-4.5 times higher survival rate than smolt grown in culture and that starved reared smolt behave more like wild born smolt. The purpose of this project was to study whether there are differences in migration patterns and survival during migration to the coast between wild and reared smolt and between different types of reared smolt.In 2009, 25 smolts in three different groups were tagged with acoustic transmitters: Wild Born, conventionally reared 2-year and 1 ?year old smolt. For the 2010 trial there was also added a group of reared 2 ?year old smolt that were starved before release.

Skolbibliotekarien : Image Profil Identitet

International research has shown that through the involvement of the school library and the school librarian in the daily school work with the pupils, the pupil´s learning can be increased and reading comprehensions significantly improved.One purpose of this master`s thesis is to study the school librarian as a brand, representing the school library as well as the school librarian and whether there is a correlation between different comprehensions of the professional role of the school librarian. This is done by examining whether there is a difference between a specific librarian´s own perception of their professional role, compared to the image of the school librarian among teachers and principals working in the same school district and by comparing the profile the school librarian expresses with the image that is conveyed through communications via webpage, written and oral information given on services and competences provided by the school librarian and work carried out by her.A difference of comprehension of the school librarian´s competence and work, could be part of an explanation as to why the correlation between the involvement of school librarians in the school work and the improved learning achievements of the pupils has not resulted in the expected measures, regardless of the investments in school librarians and school libraries. The school librarians´ school identity could be difficult to establish. Whether or not the profiles and images of the professional role are consistent with each other is a much more manageable purpose which could go a long way of explaining the circumstances of the school libraries.That is the reason why we have examined whether the comprehension the school librarians have of themselves corresponds with the idea/ conception/ image conveyed to their surroundings, and with the idea/conception/image encompassed by people in their immediate surroundings..

Skola i förändring : Bra betyg = Bra demokrat?

Title: School in Change : Good Grades = Good Democrat? Level: Final assignment for Bachelor Degree in Political Science Author: Marcos Castro Allende Supervisor: Per Strömblad Date: 2013 ? May Aim: The background to this study is a book published by Staffan. I Lindberg & Richard Svensson where they presented a hypothesis that the decline in trusting democracy within Swedish youth is a result of the deregulation of the education in Sweden. The aim of this study is to test this hypothesis and see if the declinne in democracy can be seen already before graduating from elementary school. Method: The method used in this study consist of a survey distributed to students at two elementary schools that differentiates in question of grades and social status. By comparing and analyzing the results of this survey with the claims of the hypothesis, former studies and Lipsets theory of the working-class authoritarism a conclusion is made of the hypothesis credibility. Result & Conclusions: The results showed that there may be a a difference trusting democracy between students with higher grades and those with lower grades.

Påverkar tidighetstyp fiberhalten hos rödklöver?

The high feeding value of red clover makes it into an important species in Swedish agriculture. There are three different maturity types grown in Sweden, early, medium late and late. The time for heading, regrowth and winter hardiness is affected by the maturity type, but there can also be other factors that are affected by the maturity type, for instance fiber content. In a greenhouse experiment three red clover varieties of different maturity types were compared; early Titus, middle late SW Nancy and late SW Torun. The features compared were fiber content and differences in development rates.

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