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1580 Uppsatser om Scientific fields - Sida 7 av 106
Vilken effekt har lärkrutor på ogräsfloran vid ekologisk höstveteodling? :
This study forms part of the R&D project "Improved survival of bird chicks in organic fields" managed by the Rural Economy & Agricultural society in Uppsala. The skylark (Alauda arvensis) is a species that has decreased drastically in Sweden as a consequence of more intensive cropping.
Studies in England have shown that skylark reproduction can be greatly improved within
conventional fields, at a low cost, by establishing patches of bare ground (skylark plots).
Within conventional farming, herbicides can be used in case a weed problem arises due to
implementation of these skylark plots, whereas this is not allowed in organic farming. This study examined the effects of skylark plots on the weed culture in organic autumn-sown (winter) cereals and whether weeds might cause long-term problems to farmers.
The study was conducted in two parts; a field study and a review of the literature regarding the weeds observed. The field study was carried out in 2007 during three weeks in June and three weeks in July, on eleven organic fields with winter cereal in the vicinity of Uppsala.
Vemmenhögsprojektet : ett framgångsrikt sätt att minska läckage av bekämpningsmedel från odlad mark
Det är mycket viktigt att förhindra att bekämpningsmedelsubstanser läcker ut i miljön
och orsakar skada. Lagstiftningen kräver därför att läckaget av bekämpningsmedel från odlad mark minskas. Olika myndigheter och organisationer har olika ansvarsområden
beträffande bekämpningsmedel. Bekämpningsmedelssubstanser kan, om de inte hanteras rätt, vara skadliga och därför finns det tydliga bestämmelser om hur dessa substanser ska
hanteras.
Många oberoende undersökningar visar tydligt på att det förekommer läckage av bekämpningsmedel i samband med att de används i behandlingar av odlad mark. Undersökningar har pågått under lång tid både i Sverige och i andra länder.
Ett flertal åtgärder och metoder mot läckage av bekämpningsmedel från odlad mark har framtagits och utvecklats som radikalt kan minska läckaget av bekämpningsmedel.
Stigmatisering av depression och dess inverkan på vårdsökandeprocessen ? En litteraturstudie
Introduction: The relationship between depression and stigma is known to cause suffering among the depressed population. Depression is also one of the most common diagnoses in the world. Stigma caused by society leads to people being divided into groups which in term results in a general loss of status and discrimination. Aim: To identify the stigma of depression and its impact on help-seeking behaviour and to identify the underlying attitudes. Method: We chose to make a literature review to explore and compile the current research on the subject.
Normalvetenskapen och dess förutsättningar : Två grader av relativism? - En jämförelse av Thomas Kuhns och Richard Rortys kunskapsteori.
All since Thomas Kuhn?s strongly influential The Structure of Scientific Revolutions the Philosophy of Science and ?even more so ?the Social Sciences have contained a greater amount of theories that could be described as more or less relativistic, meaning that the standards of justification or truth thereafter more often were said to be relative to language, culture, or biological makeup. One of the more elaborate ways of developing Thomas Kuhn?s theories in a more relativistic direction ismade by the philosopher Richard Rorty. Rorty, mainly a supporter of Thomas Kuhn, is also a philosopher who has been seen as a main exponent of a so called Postmodern philosophy.My intention in this thesis is to evaluate whether Kuhn's and Rorty's theories of science and knowledge could be regarded as relativism, in respects of their view of incommensurability, rational argumentation, and of their position vis-á-vis the more conventional picture of scientific knowledge and truth.
Samverkan : En kvalitativ studie om lärare och socialsekreterares uppfattning av samverkan och dess betydelse.
Collaboration is a tool many organizations use to achive a certain goal. In previous research it can be read about both advantages and disadvantages of collaboration and also that a well-functioning collaboration is difficult to achieve. In previous research there is a shortage of scientific researches illustrating the outcome of collaboration. I have chosen to examine the cooperation between the social services and schools of the municipality of Växjö. The purpose of this essay is to understand what experiences staff working with children/young people in school and social services have of collaboration between each others organizations.
Förnybar energi i läroböcker : en granskning av utvalda läroböcker inom Fysik i grundskolans senare år samt Naturkunskap A i gymnasiet
När Energimyndigheten 2008 frågade ungdomar om förnybar energi kunde 40 % av de tillfrågade inte namnge en enda förnybar energikälla. Användandet av förnybar energi är en del av den strategi som Förenta Nationerna [FN] har lagt fram för att nå en hållbar utveckling i framtiden. FN framhäver även vikten och behovet av att undervisa om hållbar utveckling och förnybar energi.Vi ville studera vilka förnybara energikällor som förekom i läroböcker för grundskolans senare år och gymnasiet. Detta för att få en uppfattning om hur lärare kan använda läroböckerna i framtida undervisning om förnybar energi.Vi har gjort en kvantitativ innehållsanalys av energikapitlet i olika läroböcker där vi har studerat hur området förnybar energi presenterades, bland annat utifrån perspektivet scientific literacy.Våra resultat visar signifikanta skillnader mellan läroböckerna för gymnasiet och grundskolans senare år. Bland annat presenteras många fler energikällor i läroböckerna på gymnasiet, och de presenteras även på ett sådant sätt att de ingriper flera områden av perspektivet scientific literacy.
Hur uppgiftstyrning påverkar konsumentens impulsköp.
The aim of this study is to examine physical education teachers? and students? views on the thesis and its part in the physical teacher education program at The Swedish School of Sport and Health Sciences.Does the view on the thesis differ between techers/students and the program with its curriculum and other policy documents?What does students/teachers value in a thesis?Does teachers/students have a mutual habitus concerning the thesis in the form of essay writing and how is this expressed?The study is based on a qualitative survey in which the respondents mainly answered open-ended questions with written answers. These answers have been categorized and analyzed with the aims of the study and the previous research in mind. The views on the purpose of the thesis differ, both within the group teachers/students and to a certain degree in relation to policy documents. The value of the thesis differs within the group.
Att plocka russinen från kakorna : En studie om hur kuratorn inom hälso- och sjukvården arbetar med och utvecklar sin kunskap inom krisstöd.
This thesis aims to explore how medical social workers/counselors perform their workwith people during crisis and how they accumulate and practice scientific crisisknowledge. This study is an empirical research paper based on qualitative interviewsconducted with eight medical social workers. The data was analysed with Kvalesmodel for categorization, which constitutes the basis of the research. The results ofthe research was then analysed with the use of Cullbergs crisis theory and a model ofevidence based practice which is described by Topor and Denhov. The results showthat the medical social workers practice the evidence based practice model, describedby Topor and Denhov, in combination with Cullbergs crisis theory.
Biovetare, bibliotek och bioinformatiska resurser
Bioinformatics is an interdisciplinary scientific subject which connects biology, biomedicine and information science. Bioinformatics generates new biological knowledge by using computer methods and biological databases and can thereby play an important role for the understanding of diseases and be used for development of new medicines. The appearance of bioinformatics has thereby had a big impact on biomedical research.In this study, I have examined bioscientists' use of bibliographical databases, bioinformatic databases/web sites and bioinformatic tools and their needs of support concerning these resources. I have also examined which support the scientific libraries offer their users concerning bibliographical databases, bioinformatic databases/web sites and bioinformatic tools and have compared it with the needs the libraries think that the users have and the needs the users state that they have.The results from the study show that there is a wish for library support concerning bibliographical databases, bioinformatic databases/web sites and bioinformatic tools. The wishes of the respondents are in contrast to the libraries' view about bioscientists interest concerning bioinformatic databases/web sites and bioinformatic tools.
Samarbete, sammanhållning och konflikter i systemutvecklingsgrupper.
I will in this paper give an introduction to the subject fields systemdevelopment, groupdynamic, conflicts and kommunication. The paper will fokus on what systemdevelopmentgroups can do before and during a project to support the teamwork and what systemdevelopmentgroups kan do to overbuild destruktive conflicts..
Synen på och stödet till Göteborgs stadsbibliotek 1891-1961
This master's thesis asks two main questions concerning the history of the City and UniversityLibrary of Gothenburg: what was the prevailing view of the library and its role? Whateconomic support did the library receive and from whom?By critically examining extensive source material mainly from the library archives and cityand state records, these conclusions are drawn: the City and University Library was regardedas a purely scientific library by all involved except the state as early as the 1920s. The state didnot express this view until 1946. The support came almost exclusively from the city ofGothenburg, the state not extending support on a larger scale until 1946 and then onlysporadically. The widely-held view of the library as a scientific one was ignored by the statein its repeated refusals to grant the library support both before and after 1946.
Bemötande efter plötsligt dödsfall. En litteraturstudie om närståendes behov.
The idea of this study was to critically examine and account for the result found in scientific articles from databases. The aim of this literature review was to investi-gate how nurses can encounter a bereaved person in a crisis situation. Also the encounter of a person at risk of losing someone. Additionally, we investigated if the nursing staff fulfilled these needs. This literature review foremost addresses registered nurses.
Mellan två kulturer: Fem forskare i arkeologi om inställning till vetenskaplig tidskriftspublicering
The main aim in this thesis is to analyse the attitudes of fivearchaeologists at the Department of History, University ofGothenburg, on the subject of scholarly publishing injournals. The investigation has been led by a set of questionsconcerning the motives and conditions for submitting articlesto scholarly journals.The primary way of collecting emprical data is based onsemistructured qualitative interviews. To get a broaderpicture, the publishing patterns of the archaeologists at theDepartment of History were mapped using the databaseGöteborgs universitets publikationer (GUP). A documentstudy was also conducted.The analysis uses Björk & Holmström?s The net value ofsubmission model to highlight which factors are assumed toinfluence an author when submitting to a scientific journal.This model is reduced and developed to six aspects whichmore or less effect the decision making of the author whenpublishing an article in a scientific journal.
Bioelectromagnetics for improved crop productivity : an introductory review with pilot study of pre-sowing treatment of tomato
Various electromagnetic (EM) treatments has been investigated for their potential in improving crop productivity over the past century. There is today an increasing amount of scientists advocating EM treatments as an organically compatible method for improving plant
growth and yield. However, failure to produce repeatable effects and defining causal mechanisms has made it a study of much controversy and debate. The subject requires indepth
interdisciplinary knowledge, making it inaccessible for the majority of biologists, horticulturists and growers. In this combined literature review and pilot study, these issues are addressed by providing a comprehensive introductory review of the topic plant
bioelectromagnetics and its potential horticultural usability.
Det intelligenta barnbiblioteket ? Att skapa ett analysverktyg för barnbiblioteksmiljö
The purpose of this master thesis is to create, test and evaluate an analytical instrument for children?s library environment based on a theoretical framework consisting of Howard Gardner?s theory of multiple intelligences and Thomas Armstrong?s pedagogical application of the original seven intelligences. We wanted to investigate whether the environment in Rum för barn stimulated all of children?s different intelligences. We also wanted to identify possibilities and liabilities within the analytical instrument.