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5395 Uppsatser om Natural science - Sida 23 av 360

Skördemetoder av industrihampa :

Hemp is an old agricultural plant and has been used for hundreds of years for making textiles, ropes and other fibre products. In the middle of the last century the Swedish government prohibited all growing of hemp. Natural fibres were replaced by syntetic fibres instead. Today there is a newly awakened interest for using natural fibres from renewable materials. Growing of industrial hemp for fiber is allowed in Sweden again. I want in my Paper give Swedish growers an insight of which harvesting methods that have been tried in Sweden and how they worked.

Effect of Bacillus mediated priming on different natural genetic variants of Arabidopsis thaliana

In two feeding experiments Bacillus induced priming of plant defense was tested for its effect against the generalist insect pest Spodoptera littoralis. The main hypothesis for the study was that Bacillus induced priming would enable the plant Arabidopsis thaliana to defend itself better against this insect herbivore since this priming seems to involve jasmonic acid, known to be important for plant defense to insects. A secondary objective of the study was to examine if any differences in a primed defense capability could be seen between different natural genetic variants (ecotypes) of A. thaliana reflecting habitat differences in pest pressure. The methods used for plant cultivation and Bacillus inoculation were aimed at reflecting conditions that can be expected in an agricultural cropping system. This meant that all plants were cultivated in soil, and the feeding experiments were conducted with the plants growing intact in the soil system.

Att uppfylla miljökvalitetsmålen, ett omöjligt mål? : Styrmedel och hinder på vägen för att nå målen Begränsad klimatpåverkan, Bara naturlig försurning, och Skyddande ozonskikt

Purpose: The purpose is to examine more closely why the achievement of the environmental goals is so low. To within the thesis work to make this as interesting and with as good quality as possible, especially the environmental quality goal Reduced climate impact, but also Natural acidification and Protective ozone layer, has been chosen to be studied further. Method: A qualitative method and text analysis has been applied. Intervention theory, as Vedung 2009 describes, is used as an intellectual backbone and as a help to structure the essay. The three environmental quality goals correspond cases, or units of analysis. Analysis: The fulfillment of the respective environmental quality goals is analyzed according to its goal, policy instruments, implementation and its effects. To this some of the problems are analyzed that exist on the path to achieve the goals.

Att göra affärer i Kina - rättsligt skydd i lagen och i verkligheten

This thesis looks at the difference between the legal protection in law and the legal protection in reality when a small company working with international trade comes in contact with seller's breach of contract. The thesis uses a case taken from a company with over 30 years experience trading with China and looks at the legal protection available along with the different possibilities of dispute resolution available to a company and then looks at the reasons why this legal protection never becomes a reality and the thesis also analyses some possible reasons for this gap between law in the books and law in reality..

Föreställningar om barn inom I Ur och Skur - en idé- och ideologi analys

Sweden is currently a country in which a large amount of children?s time has changed to be spent within institutions, for small children these institutions are preschools. These are places where notions are created regarding what children are, what?s good for children, what?s normal and desirable regarding children. The purpose of this study has been to decipher what?s considered desirable and what notions or ideas regarding children are prevalent in preschools with an I Ur och Skur profile.

Hur grundskollärare beskriver samarbete med ett science-center och vad det kan tillföra undervisningen i naturvetenskap

I denna studie har grundskollärare fått beskriva ett besök med sina elever vid ett science-center. Data är samlade via en enkät. Arbetet syftar till att undersöka på vilka sätt lärare engagerar en sådan informell lärandemiljö i sin undervisning och hur de får besöket att bli en del av arbetet i klassrummet. Detta har gjorts genom att ställa frågor om hur lärare planerat, genomfört och följt upp ett besök. Lärarna uttrycker att sciencecentret är en resurs för elever, men också för lärare.

Marknadsundersökning - hur en Science Park-nod på glesbygden bör göras synlig

Examensarbetet besvarar hur en Science Park-nod bör göra sig synlig på glesbygden. Arbetet har uträttats för Näringlivsbolaget i Eksjö kommun under perioden mars 2009- september 2009. Det har besvarat frågor rörande marknadsföring av Science Park-noder med ett konkret exempel i samhället Mariannelund. Noden i Mariannelund har funnits sedan hösten 2008, men har ännu inte marknadsförts någonting. Rapporten påvisar hur marknadsföringen kan göras för att tjänsten ska efterfrågas av fler kunder.

Zoonotic respiratory infections and great ape conservation - an emerging challenge

The conservation of great apes faces many challenges, one of which is the threat of infectious disease outbreaks. Zoonotic transmission of respiratory diseases from humans to wild great apes has recently been confirmed. Since respiratory disease is one of the major causes of death in both gorillas and chimpanzees, this gives reason for major concern. Little is known about the risks of disease transmission from humans to great apes in natural environments, and there is a need for systematic risk evaluation. Researchers, conservation staff and tourists spend time in very close proximity of wild great apes, sometimes during long time periods, which poses a potential risk of disease spillover. However, the presence of researchers and tourists has been shown to decrease the risk of poaching, making the matter increasingly complex.

Inhysningssystem för växande ungtjurar

The purpose of this study was, if possible, to find a housing system for growing bulls that was as optimal as possible for the animal welfare. In order to select housing systems you must take into account the size of the group, body weight and the type of floor. Seven of the international most common housing systems were compared, straw bedding, deep straw bedding, sliding straw bedding, concrete slatted floor, rubber coated slatted floor, cubicles and feeding cubicles. Studies that have examined the proportion of tail, claw and leg injuries and the presence of unnatural behavior in the different systems. In summary, all studies showed that soft underlay were beneficial for the animals in terms of the proportion of bone lesions and swellings.

ELF-EAR, Teknik i Levande Rollspel

Vårt mål är att förhöja deltagarnas upplevelse i levande rollspel (även kallat lajv). Idag finns det inga möjligheter att visualisera övernaturliga förmågor. I den här rapporten visar vi ett exempel på hur detta kan realiseras med hjälp av teknik. Vi har inriktat oss på att simulera alvers övernaturliga hörsel. Levande rollspel är mycket känsligt för störningar från ?världen utanför?, exempelvis modern teknik och språk.

Datalagring - Ett växande problem?

Title: Information storage - A growing problem? Authors: Göran Svanhall Pär Truedsson Erik Ponnert Tutor: Bengt Carlsson Problem: Every day companies, regardless of size, produces new information that needs to be stored. In the information society of today, the characteristics of the information changes both in size and complexity. This results in higher demands on which storage solution that suits the company and their field of business. New and more innovating storage solutions enters the market, but are they necessary to smaller companies of development active in the IT society? Questions to Answer: Is data storage a growing problem for companies of development active in the IT society? How do traditional storage solutions manage the information growth of today? How urgent is the need of a new storage solution? Which features are prioritized in the future storage solution? Method: By performing a quantitative survey we delivered an inquiry to several companies, which answers will help us answering our above mentioned questions. Conclusion: The consulted companies experience no growing problems what so ever regarding their existing storage solution..

Formandet av yrkesidentiteten: socionomen i en hälsofrämjande skola ur ett professionsperspektiv

As a school welfare officer you are often alone of having your perspective and must struggle to preserve that perspective. At the same time, there are very little defined what role a social worker should have in a school. This makes it nessesary to form and develop your role of profession independently. According to the Swedish school law, the schools are not required to employ a welfare officer. This makes the school welfare officer inferior to the other branches of occupation in school.

Synen på "den andre" i ett segregerat område i Kalmar : en studie gjord ur två utlandsfödda mäns perspektiv

Edward Said's book Orientalism (1978) is the most important reference point in the post-colonial theory and describes how the West is dominant over the Orient. There is a clear distinction between "us" and "the other" and the purpose of this study is that, from a postcolonial perspective, focusing on Said's theoretical concepts "the other" and "discourse", examining how two foreign-born people with ethnic backgrounds living in the same place, are looking at themselves, at other foreign-born and native Swedes. My questions to answer this are; ?what are the concepts of "the other" and "discourse" and is it possible to use these concepts to examine how foreign-born people are looking at themselves, at other foreign-born and native Swedes in a specific location??, ?who is "the other" in a place where there are almost as many native Swedes as foreign-born??, and ?how do these two foreign-born people with ethnic backgrounds perceive Norrliden as a place and what effect has that place had on their identity?? I have used a post-colonial philosophical ground and a qualitative approach, focusing on two different interviews with two men, living in Norrliden. In Norrliden almost 50% of the inhabitants are foreign-born were both of the interview-persons are feeling safe and secure.

Könsmärkning och statusrelevans i folkbiblioteksvärlden

The main purpose of this Masters thesis is to examine gender division in public libraries by reviewing literature and interviewing eight public librarians and two chief librarians. The reason why we decided to investigate this topic is the lack of research concerning sex-segregation in library and information science. By choosing this subject we intend to deepen the understanding of the significance of gender both within the public library and of the occupation in general. Some researchers claim that the low status of librarianship is a result of the large proportion of women in the profession. We want to find out how our informants view the relation between professional status and female domination.

En utvärdering av två pearl growing-metoder i ISI Web of Science

The purpose of this thesis is to evaluate two pearl growing methods in ISI Web of Science. The methods tested are Find Related Records FRR, an automatic service that uses bibliographic coupling, and Author Keywords AK, where searches are performed using the two first keywords from this field. Both search methods were used on twenty initial documents and the first twenty hits were evaluated for relevance using a binary scale 0,1. The relevance criteria were based on specific information needs connected to every initial document. The measures used to evaluate the effectiveness of the search methods were Precision at DCV=10, P10, and Uninterpolated Average Precision AP.

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