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13603 Uppsatser om Difference-in- differences-metoden - Sida 45 av 907

Fysisk aktivitet och fysisk självkänsla : Är det skillnad mellan elever på yrekesförberedande och studieförberedande gymnasieprogram?

Background: Students, at a secondary upper school, attending a practical programme have a lower physical capacity than students from theoretical programs. Our physical self-esteem has a great significance for our motivation in being physically active and thereby also for our health. The purpose: of this study is to find out if there is a difference between perceived physical self-esteem and objectively measured physical activity between students attending a practical programme and a theoretical programme. Method: Four classes, in a medium-sized town in the southeast of Sweden, participated in the study, two classes from practical programmes and two classes from theoretical programmes. All the students were in their final year at the upper secondary school, when they were part of the study during the autumn of 2011.

Detektion av mRNA från en cytokrom c gen belägen i genklustret för kloratmetabolism i Ideonella dechloratans

Abstract:In previous experiments with the bacterium Ideonella dechloratans a probable sequencecoding for a cytochrome c protein (cyt c) was observed, the sequence is assumed to have afunction in the bacterial respiratory chain. Detection attempts have been made to try to findthis protein, but have not succeeded. The purpose of this project is to detect the expressionof mRNA associated with the cytochrome c. And if it is detected, it will also be investigated ifthere is any difference in expression of the mRNA due to aerobic or anaerobic environment.Total RNA was purified from cultures grown under aerobic and anaerobic conditions. cDNAwas then synthesized using reverse transcriptase and subsequently amplified with thespecific primers in a qRT-PCR.qRT-PCR testing showed a distinct amplification of primer product, confirming that I.dechloratans expresses mRNA coding for the cyt c protein.

Baltic 21 kontra Helcom : Hållbarhet eller Modernisering

The purpose with the essay is to point out how the main differences of the Helsinkicommission, Helcom and Baltic 21 can be explained from a general perspective and with a specific focus on two of their ongoing projects: Baltic 21 Lighthouse projects and The Baltic Sea Joint Comprehensive Environmental Action Plan. And to investigate how the organisations them selves formulates the purpose of the two projects. This will be an indication on why environmental problems are handled with in a traditional matter although the rhetoric of the environmental politics is permeated by the concept of Sustainable Development.This dilemma is being treated from the theoretical approaches of Ecological Modernisation and Sustainable Development and linked to how these organisations actually carried out their work and how the historical heritage have a role to play in this complex of problems. The results of the essay shows that concrete differences exists in the way that the two organisations are constructed and how their ongoing projects are designed and formulated. These differences can be derived to the theoretical platforms Ecological Modernisation and Sustainable Development and be explained by in witch political context the organisations were created.

Truppgymnastik

According to recent research the basics for a good body posture is balance between the muscles, if unbalance originates this can be strengthen by gymnastics when most of the practise performs only in one direction. Because of limited research in the area was an explorative study conducted. The purpose of the study was to inquire if exercise adjusted to the individual contributes for balanced muscles and if it contributes for a positive or negative development for the team.On the basics of that the team is not equable an other team in the area has the results for two different periods been measured, during the first period the exercise continued as usual but during the second period each gymnast (n=9) received an individual strength- and stretch program that was performed during the teampractise twice a week. The gymnasts were tested in areas that are imported for them as body posture, balance between the muscles, vigour, range of movement, balance, the running and coordination. The results showed on that the difference is largest between test two and three, except the coordination and balance which did not show any particular change.

Bilden av kvinnliga och manliga elitfotbollspelare i Aftonbladet och Dagens Nyheter : ? en kvantitativ och diskursiv analys av fotbollsVM 2002 och 2003

Author: Camilla AnderssonTitle: The depiction of female and male elite soccer players in Aftonbladet and Dagens Nyheter ?  A quantitative and discursive analysis of the World Cup 2002 and 2003Level of education: CSubject: Media and Communication Studies Umeå University: Department of Culture and Media Studies Term: Spring 2004 Pages: 70 The purpose of this essay is that from a gender theoretical and critical discourse analysis perspective  study how the image of the Swedish football national teams and players in the 2002 World Cup (men) and 2003 (women) were constructed in the media coverage. I analyze articles published in Dagens Nyheter, Swedens biggest morningpaper and Aftonbladet, biggest eveningpaper. The method is based on a quantitative content analysis, and critical discourse analysis in which I use van Dijk's analytical approach. Issues :1. What constructed the World Cup in 2002 and 2003  players and teams, from a gender theoretical perspective in the mediatexts?2.

Metodik för detektering av vägåtgärder via tillståndsdata

The Swedish Transport Administration has, and manages, a database containing information of the status of road condition on all paved and governmental operated Swedish roads. The purpose of the database is to support the Pavement Management System (PMS). The PMS is used to identify sections of roads where there is a need for treatment, how to allocate resources and to get a general picture of the state of the road network condition. All major treatments should be reported which has not always been done.The road condition is measured using a number of indicators on e.g. the roads unevenness.

Antibiotikaresistens hos bakterier isolerade från friska hundar i Sverige : indikatorbakterier E. coli & Enterococcus spp samt Staphylococcus spp isolerade från hud

Objective: To determine the frequency of antimicrobial resistance in bacteria from healthy Swedish dogs and whether they are carriers of methicillinresistant Staphylococcus aureus (MRSA). Material: Samples from skin from the perineal region and from faeces collected in the anus with cottonswab (Copan) from 299 healthy Swedish dogs. Samples were collected at dog exhibitions. Method: Specimens were submitted for bacterial culture where bacteria (Escherichia coli, enterococci and staphylococci) were isolated and identified by current methods. Antimicrobial susceptibility testing was performed with a microdilution method where MIC-values were determined. Staphylococci with high degree of resistance were tested for presence of mecA-gene by PCR.

Kvalitetskontroll och kvalitetsutveckling i Utredningshemmets utrednings- vård- och behandlingsverksamhet : Vad tycker socialtjänst, föräldrar och ungdomar?

Utredningshemmet in Hässleholm, Sweden, is a special residential home for acute management and investigative evaluation of juvenile delinquents.Utredningshemmet has, since 1991, used an investigative model, which is based on systems theory. The investigative work is done in close co-operation with social workers, youths and their parents.This study takes into account the youths, who have had a commissioned placement to carry out an investigation of their needs of care and treatment, 71 juvenile delinquent cases. They are divided into three one year intervals: 17 cases in 1993, 28 cases in 1998 and 26 cases in 2003.The purpose of this evaluation is to illustrate changes in the social workers, parents and youth's level of satisfaction during the development of the special residential home's investigative model.Approximately one to three months after discharges social workers, youths and their parents completed a level of satisfaction questionnaire. The results demonstrate no significant difference in the level of satisfaction between different time periods. There are, however, differences in satisfaction levels between social workers, who have the highest level of satisfaction, parents, who have the next highest level and finally the youths level of satisfaction..

Public Sector Scorecard : en ekonomistyrningsmodell med kundfokus

The Public Sector Scorecard (PSS) is a younger version of the balanced scorecard, created for public and nonprofit organizations. The latest model of PSS is divided into three main groups and seven perspectives, while the balanced scorecard consists of four perspectives. Organizations who use either PSS or the balanced scorecard are supposed to have a clear vision spread all over the unit. This study has sought differences between the two models of financial control in both theory and practice. The first part of the study is a theoretical comparison between the models? structures and terms used in them.

"Det som står i Internet kan också stå i en bok, så då måste det ju vara sant": En undersökning av Komvuxelevers informationskompetens

The information flow of today is endless and the advances in information technology astounding. In today's information society it is of utmost importance not only to be able to find the right information but also to evaluate the information. The expression ?information literacy? is not a new one but it has never been as pertinent and essential as today. Information literacy is however not something which is easily and swiftly achieved.Swedish youth education is based on problem based learning in which the students are expected to research for material, evaluate their finds and use their skills to produce a good written or oral presentation.

Dagkirurgiska patienters upplevelser av postoperativ smärta vid ortopedi-och bukkirurgi med beaktande av kön och ålder

The aim of this study was to elucidate day surgery patients´ subjective experiences of postoperative pain after orthopedic and abdominal surgery and if there was any difference in the experience according to sex and age.Selection was not random and the study included 87 patients. Data were collected from patient questionnaires. VAS method was applied in the questionnaire to measure patients´ pain.The outcomes of the study show that there was no significant difference between women´s and men´s experiences of pain during days 1-7.It was found that patients undergoing orthopedic surgery had significantly more pain on day 7 compared to those patients who underwent abdominal surgery.There was a significant negative correlation between age and perceived pain on day 7.Patients in day surgery group had significantly less pain on day 7 compared with day 1.The patients who have undergone orthopedic surgery and younger patients had more pain on day 7 while the patients in day surgery group had a pain level decreased gradually and on day 7 was the lowest.It appears that pain relief on day 7 of younger patients and patients who have undergone orthopedic surgery is an area that can be improved..

Kartläggning av preoperativa fasterutiner på tre vårdavdelningar

The aim of this study was to investigate for how long patients fast before thoracic surgery, plastic surgery and ear, nose and throat surgery, at the University hospital of  Uppsala, and what knowledge patients have about fasting and how they get affected by it. 30 patients were interviewed, 10 patients at each ward, according to a questionnaire. Data processing was performed with SPSS. There was no difference in fasting time for solids between the wards but the mean fasting time was 14 hours. In the thoracic ward patients fasted from liquids considerably longer than in the other wards.

Utbildning för hållbar utveckling från ett lärarperspektiv i årskurs 4-6 : En studie om lärares medvetenhet, föreställningar och utbildning inom utbildning för hållbar utveckling i Sverige och USA.

The primary purpose of this degree project was to investigate teachers conceptions about education for sustainable development and their education within the area. Teachers from Sweden and California have taken part and one of the aims with this study was to look if any differences could be found depending on what country the teachers came from. Therefore, this study has used a qualitative approach where conception maps and interviews have been used to get a result. Furthermore, the result showed that none of the differences that was found can be linked to the participants home country. The study also showed that several of different teaching traditions and educations philosophies was represented.

Betydelsen av prokainets nedbrytning i plasma vid penicillinchock hos häst :

The use of intramuscular injections of procaine penicillin G (bensylpenicillin procaine) in the horse is now and then associated with acute adverse reactions (penicillin-chock). The etiology is not yet clearly understood, but the theories are several. One possibility is that it can be caused by procaine toxicity. Procaine penicillin G is a salt which is quickly dissolved in plasma. Procaine is then metabolized by plasmaesterases to non-toxic metabolites, p-aminobenzoic acid (PABA) and diethylaminoethanol.

Risk eller Resurs: En studie av hur riskbegreppet konstrueras i den svenska kärnkraftsdebatten

Looking at the debate on nuclear power in Sweden, the issue of risk is central to understanding the difficulties in resolving differences between proponents and opponents. I sought to answer the research question: "how is the concept of risk constructed in the nuclear power debate in Sweden?" Four main aspects of risk construction were defined and investigated to identify differences between sides in the debate. Through a qualitative study of the debate and its actors I found clear differences in respect to all four aspects of risk construction. First, the perception of nuclear power as a "normal risk" is common among nuclear opponents in contrast to a largely probabilistic view among proponents.

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