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133 Uppsatser om Evolutionary biology - Sida 2 av 9

Vad är viktigt? : Läroboken i biologi som förmedlare av kunskapsideal kring innehåll och mening

The aim for this paper has been to examine three textbooks designed for science education in upper secondary school in order to determine whether they convey any specific attitudes regarding what is considered to be ideal knowledge within the field of biology. The main focus has been to investigate if different types of design strategies have been used to emphasize certain values or attitudes and if this proves to be the case, how is this achieved specifically?                      For this purpose I have conducted several different qualitative linguistic analyses of the textbooks. The theoretical framework for the analyses lies within the main field of critical linguistics and more specifically in the context of systemic functional linguistics. The two main language models I have chosen to use for my investigations are functional grammar and multimodal text analysis.                      My results imply amongst other things that by conducting an overall assessment of the headlines in the textbooks a fair assessment can be made of which overall attitudes the books convey.

En statistisk undersökning av transkriptionsnoggrannheten i kodande DNA-sekvenser i E.coli-bakterien

Bacteria are exposed to evolutionary pressure to an extent unlike other organisms. This leads to a high degree of adaptation to its surrounding. This thesis investigates the degree of adaptation towards higher accuracy in the transcription of DNA to RNA in coding sequences in the DNA of the E. coli bacteria. Two coding sequences with different nucleotide contents were investigated.

Svett och blod : modernitet, kroppskultur och ras i Gymniska Förbundets tidskrift Gymn, 1928-1932

This study aims to investigate and describe the direction of the ideological development of the Swedish gymnastics association Gymniska Förbundet. Between 1928 and 1932, this organization transformed from a purely gymnastic and cultural association into an influential platform for the production of Swedish nationalist ideology. Based on theories of National Socialism?s formation within modern society, the analysis focus on the conditions regulating Gymniska Förbundets relation to modernity. Thus the study examines the association?s ideas in relationship to the concept of modernity.

Qualities and supply of suitable dead wood for Ceruchus chrysomelinus and its dispersal pattern in a translocated population

The wood-living beetle Ceruchus chrysomelinus is a rare species connected to natural forests. In Sweden, it is red-listed as endangered (EN) and an action plan for its preservation has been done by the Swedish Environmental Protection Agency. In this work I have therefore investigated how a translocation of the species succeeded after 17 years. I aimed to study the species dispersal biology, its substrate preferences and the supply of suitable wood on this site. The study was performed during 2012 in Pansaruddens nature reserve close to Uppsala in Sweden, which is a spruce dominated forest.

Studie för utveckling av fastställande av aminotransferaseaktivitet i Enzobact med isokratisk HPLC metod

Denna examensrapport redogör för en metodutveckling av aminotransferase aktivitet som är utförd för Medipharmv AB i Kågeröd som tillverkar Enzobact. Enzobact är en bakteriekultur som består av värmebehandlad Lactobacillus helveticus och används vid tillverkning av lågfetthaltiga ostar, vilket bidrar till att osten får en bättre smak och konsistens..

Bestämning av kotinin/nikotin i biologiska prover (urin och serum/plasma) med HILIC-MS/MS

I detta arbete presenteras en metod för bestämning av fri kotinin och totala mängden kotinin i urin och serum. Metoden bygger på hydrolys av prov (för total bestämning av kotinin) och extraktion i metylenklorid. Bestämning av kotinin har gjorts med HILIC-MS/MS..

Gränsöverskridande Ljuddesign

Transcending sound design is possible. There are unseen possibilities and a great potential for improvement and development in sound and music design ? but there is a great difficulty penetrating the obstacles that lies in the way for such development to take place and to exist. The difficulties in being negotiable and productive lies more within the limits of the audience it has to gain, than in itself. It is as though music and sound design has to evolve very slowly, in an almost evolutionary style; one step at a time, to be accepted.

Genetisk artbestämning och karaktärisering av Trypanosoma theileri

Global warming is one of the most debated environmental issues right now, and it could be argued that it is important to study how the phenomenon is treated in schools. The main purpose of this study is to put students? knowledge about global warming in relation with the control documents for chemistry, biology and physics studies. Interviews have been conducted with six students in the 9th grade. The conclusion of the survey indicates that the students generally have a satisfying knowledge about the phenomenon and that they know how they should behave from an environmental perspective..

Bestämning av den protolytiska aktiviteten hos Enzobact - en enzymatisk analysmetod

Detta examensarbete redogör för en enzymatisk metod för att analysera den protolytiska aktiviteten i Enzobact. Enzobact är en ostmognadskultur,som framställs genom värmebehandling av Lactobacillus helveticus, och tillämpas vid ystning av lågfetthaltiga ostar. Det är lämpligt att en ostmognadskultur har en låg protolytisk aktivitet för att den färdiga produkten ska ha samma smak och utseende som en normalfet ost..

Betydelsen av biologiska aktivitets- och experimentmaterial i förskolan

The purpose of this study was to gain greater knowledge of how preschool teachers and children using an experimental- and activity box in biology. To find this out, I have used the participant observation method and semi-structured interviews since my study is qualitative. The result of the work led to a greater understanding of the biologybox. It was shown that preschool teachers' involvement is very important for children and that the biologybox contained good and inspiring materials. Although educators desired that there was more material to choose from as well as the usage time of the biologybox should be longer than 3 weeks..

Global uppvärmning : A survey of students? knowledge about the phenomenon

Global warming is one of the most debated environmental issues right now, and it could be argued that it is important to study how the phenomenon is treated in schools. The main purpose of this study is to put students? knowledge about global warming in relation with the control documents for chemistry, biology and physics studies. Interviews have been conducted with six students in the 9th grade. The conclusion of the survey indicates that the students generally have a satisfying knowledge about the phenomenon and that they know how they should behave from an environmental perspective..

Den sanna kyrkans röst : Självförståelse och reformsträvanden inom Svenska Kyrkoförbundet 1911-1917

The purpose of this study was to gain greater knowledge of how preschool teachers and children using an experimental- and activity box in biology. To find this out, I have used the participant observation method and semi-structured interviews since my study is qualitative. The result of the work led to a greater understanding of the biologybox. It was shown that preschool teachers' involvement is very important for children and that the biologybox contained good and inspiring materials. Although educators desired that there was more material to choose from as well as the usage time of the biologybox should be longer than 3 weeks..

Gränsöverskridande Ljuddesign

Transcending sound design is possible. There are unseen possibilities and a great potential for improvement and development in sound and music design ? but there is a great difficulty penetrating the obstacles that lies in the way for such development to take place and to exist. The difficulties in being negotiable and productive lies more within the limits of the audience it has to gain, than in itself. It is as though music and sound design has to evolve very slowly, in an almost evolutionary style; one step at a time, to be accepted.

Mag-tarmkanalens anatomi och fysiologi

Detta examensarbete handlar om mag-tarmkanalen och är uppdelat i två avsnitt. Den första delen handlar om mag-tarmkanalens uppbyggnad, rent anatomiskt men också hur den ser ut histologiskt. Histologin är bara ytligt behandlad då den endast är med som förklaring till vissa händelser inom fysiologin. Den andra delen, fysiologidelen handlar om de olika delarna i mag-tarmkanalen, deras funktioner och vad som reglerar dessa. I fysiologiavsnittet behandlas också nedbrytning och absorption av de olika näringsämnena..

The genetic background of oxytocin and its importance for maternal behaviour of sows

Oxytocin is today widely spoken of as a "feel good" hormone. Recent research has increased interest in the hormone and its role in social and sexual interactions, as well as its importance for complex behavioral patterns. There is evidence that oxytocin is released during physical contact and is said to suppress anxiety and stress. In animals and humans, oxytocin, which is a neuropeptide and likewise a hormone, is necessary for parturition and lactation. Synthesis of oxytocin occurs in brain neurons and in specific organs involved in reproduction.

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