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14305 Uppsatser om Difference- in- difference analys - Sida 57 av 954
Älgens barkgnag på granstammar : omfattning med avseende på geografisk utbredning, skadad volym och ekonomiska konsekvenser
In three areas in the province of Småland studies has been done to investigate how big
damage the moose may do to P. abies. An inquiry examination and two different types of
surveys were done to find out how big area, which volume and which financial consequences
the moose debarking has had on the forest.
When the volume was calculated the rot spreading was included. The area that was damaged
was stipulated with the answers from the inquiry examination. 59 % of the asked forest
owners answered the inquiry.
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.
Ideella föreningars nyckeltal : Studie av 2006 års årsredovisningar i ideella föreningar
The purpose of my essay is to see how teachers are working to integrate the two subjects Art and Swedish in their teaching, and to see how this integration is made. What do teachers think about subject-integration? What are the positive effects of it? Are there any difficulties involved? Do the teachers prioritize cooperation with other subjects?To answer my questions I have interviewed eight teachers, four of them in upper secondary school and four in lower secondary school. I have also studied literature about subject-integration and children?s learning, curriculum?s and syllabi in the subjects of Art and Swedish.The results of my study show that the interviewed teachers are positive when it comes to integrating Art and Swedish and other subjects.
XML som informationsbärare för EDI
Information handling has been a key issue for different companies for a long time. Electronic Data Interchange (EDI) is used to transfer different business documents from one company to another. This is done in such way that the information itself is separated from how this information is stored and handled in the companies internal systems. As different companies have different systems there is a need for a standardised format for this exchange. There is a big difference between EDI-systems based on what kind of EDI-standard is used.
Herrgårdshushåll i Västmanland. En studie av herrgårdshushåll och arbetsorganisation i Munktorp- och Rytterne socken 1705-1849.
This study aims to investigate the domestic and work organization at the mansions located in the south of Västmanlands county years 1705-1849. The study takes into account the manors' size, ownership, owners' status and social changes. The study includes both large manors with noble owners and smaller manors with bourgeois owners. The study examines how the households were formed, how they changed over time and how thet may have links to the Manor's ownership and size. The organization of labour is studied on the basis of how it changed over time and what it may have links to the owners ' status and the manors size. The focus is to answer how the connection was between household size, its composition, organization of labour and the owner?s status in the society. Also if a difference can be seen between the strategies of the noble owners compared to the bourgeois owners..
Barnfattigdom i Sverige : En studie om hur socialsekreterare uppfattar barnfattigdom samt hur de kan arbeta förebyggande.
The aim with this study is to understand how social workers at the individual- and family sector think about child poverty and how they work with and reason about the preventive and facilitate work they do for financial vulnerable families. We have in our study used qualitative method through semi-structured interviews with social workers at the individual- and family sector to answer our purpose. The results showed that child poverty is a concept hard to define and not well established. The social workers have divided views on child poverty but still at the same time mean that it exists amongst the families they meet. There is also a big difference between municipalities and their reasoning on what a reasonable standard of living is for a financial vulnerable family and how they work with preventing child poverty.
Metod för dosoptimering av digitalt detektorsystem i klinisk drift
The county of Dalarna is at present carrying through a process of digitalization where traditional x-ray film is being replaced with digital detectors. Earlier used methods for dose optimization turned out not being sufficient. This report presents a method to harmonize dose levels between x- ray sites equipped with Fujifilm imaging plate systems. An exposure index, S, related to the dose level of the examination is computed to every x-ray image. S turned out to be inversely proportional to the detector dose used at the examination.
På spaning efter faktorer som påverkar studietiden vid musikskolor : En enkätundersökning bland rektorer för musik- och kulturskolor
The purpose of this investigation is to see if there is any difference in how long pupils are staying in the activity of the music- and culture schools in the country. I have compared this with how large the teachers engagements are in average at each school, how many teachers each school holds and if one teacher is teaching within different areas, e.g. on different instruments. Thru mail contact with the headmasters at the music- and culture schools I have gathered data concerning the length of which the pupils are staying at the schools, the number of teachers at each school, the size of the teachers services and in how many different areas each teacher is teaching.It has been hard to get to any results in the investigation since the music- and culture schools don?t compile statistics on how long their pupils are staying at their schools.
"Man borde kanske prata med de man tycker illa om" - tre elevgruppers arbete mot rasism
The aim was to investigate three anti-racist groups of pupils, their thoughts about respectively their work against racism. The aim was divided into the following questions: - What is, according to the groups, racism and what does the situation look like at the schools? - What does the dynamics in the group look like? - What courses of action are the groups using and how can they improve their work? - How can the groups be described according to the terms work group and basic assumption group? To answer these questions I made three group interviews, one with each group. I analysed the results partly according to earlier research and literature, partly according to the group theory of WR Bion, using the terms work group and basic assumption group. My conclusion is that the word racism seems to have been affected by inflation, since the groups include bullying as well as anti-racists.
Nätmobbning : Anser barnen som är kamratstödjare i skolan att det förebyggande arbetet kring nätmobbning kan vara en uppgift för dem?
Do children, who are supporter of comradeship, think that working to prevent cyber bullying may be a task for them? This study describes, from a child?s perspective, how a supporter of comradeship can be supportive in the preventive work against cyber bullying. This study will also define the phenomena bulling and cyber bullying, the difference between them and where they can be seen. I will also describe the supporters of comradeship are elected, the information they get from school and how adults at school help them to plan their work. The schoolconsider, of course, the Swedish school law towards (against) bulling and insulting behavior and the school is also visited by inspectors from the Swedish National Agency for Education.
Institutionella ägares inverkan på redovisningskonservatism - En empirisk studie av företag noterade på Stockholmsbörsen
The increasing holdings by institutional investors have raised concerns about the institutions passive investment strategies and the implications for corporate governance. A way for investors to address moral hazard and opportunistic behaviour of management is to demand conservatism in accounting practices. This paper analyses the relation between institutional ownership and accounting conservatism in the Swedish market by studying firms on the Nasdaq OMX Stockholm over a three-year period. Furthermore, the study investigates whether ownership by institutions with high probability of monitoring managers leads to higher conservatism in financial reporting. To measure accounting conservatism this study uses the asymmetric timeliness measure developed by Basu (1997).
Genom vilka strategier använder gamla medier de nya? : En kvalitativ studie om TV-aktörernas användande av sociala medier
Title: By what strategies is the old media using the new media? A qualitative essay on TV: s use on social mediaNumber of pages: 54Authors: Marie Magnusson och Sabina KarlssonTutor: Karin FastCourse: Media and Communication Studies CPeriod: Spring 2011University: Karlstad UniversityPurpose/Aim: Our purpose is to examine which strategies and why two TV-channels, SVT and TV4, are using social media. Our anticipated view is that SVT as a public service organization and TV4 as a commercial operator may have different motives with its use of social media.Material/Method: A qualitative method consisting of interviews by informants from SVT and TV4.Main results: Our result is that there isn?t any big difference between SVT and TV4 in the way they?re using social media. However, that SVT has to more specifically make sure no commercialism exists, while TV4 don?t have to think about it.Keywords: Social networking, convergence, commercialism, communication, Internet, public service, television..
Hur utvecklar man det ra?tta tekniksto?det fo?r att underla?tta dokumentation av formativ bedo?mning? : En studie av la?rares administrativa arbetssituation na?r det ga?ller dokumentation av formativ bedo?mning
In this study we have examined how teachers work with the documentation of formative assessment with focus on how to design the right technological support to make it more simple and more efficient. We have studied how teachers? work with documentation in practise based on the guidelines for formative assessment presented at the National Agency of Education. We performed observations and interviews in primary schools with teachers in different subjects in Ska?ne and Norrland.
"Måste det vara så krångligt?" : Att arbeta med teknik i förskolan
The purpose of this study is to explore how preschool teachers succeed in their mission to conduct work that will enhance children's interest and knowledge in technology. The study was conducted by qualitative semi-structured interviews among eight teachers at seven preschools in the same municipality. The method was chosen because I wanted to get as detailed and full answers as possible. I also wanted to find out their individual perceptions. The result shows that most of the teachers think that they have insufficient knowledge to practically work with technology. At the same time they?re expressing that technology is a broad area that sometimes is a little more complicated than it needs to be.
Magnesium chloride in dry cow silage to prevent hypocalcaemia
Milk fever, or parturient paresis, is the second most common disease in Swedish dairy cows. The disorder is associated with the onset of lactation when some cows are unable to meet the metabolic demands of calcium to support milk production and therefore develop a state of hypocalcaemia. Clinical hypocalcaemia (milk fever) may lead to coma and death in severe cases but subclinical hypocalcaemia has also been shown to have negative effects on e.g. feed intake and production and to increase the susceptibility of the cow to develop secondary diseases. The nutritional strategy applied precalving is of great importance in preventing milk fever and e.g.