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6679 Uppsatser om Biology and Life Sciences - Sida 1 av 446

Biomekaniska berättelser : En analys av forskningkommunikationen runt den biomekaniska armen

The pdf is excluding images, because of uncertainties regarding copyrights. Instead I have put links for each picture so you may find them on the Internet. For a list of links to the online sourcematerial, please visit http://del.icio.us/Cyborguppsats.

Hur man fångar elevers intresse för ämnet biologi

From interviews with biology teachers and pupils, some important factors are presented that motivates and interests pupils in biology. Some of these are varied education, commitment of the teacher, narrative skill and individually reachable goals. Other important factors are practical application and connection to daily life, as well as actuality of the subject and pupils experience of the use of learning.Circumstance around teacher and pupils will influence which factors that has the most impact. It´s up to each teacher to make a decision which factors to be used based on his or her own qualities and depending on the group they will teach.Teachers and pupils agreed about factors that will cause an interesting lesson. The pupils emphasize that variation is the most important factor.

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..

Didaktiska implikationer i lärares samhällsuppdrag : Uppfattningar om demokrati och biologiskt ämnesstoff hos blivande lärare

In today?s school in Sweden the assignment of community encompasses mediated values and education of democracy as well of single subject matters. What does it mean then, that teachers have a certain kind of idea of democracy, and what implications may biology have for the assignment of community? In upper secondary school there are quite many courses in biology with a national curriculum, and findings show that students of teaching perceive or think of biology as helping to promote the dual-purpose of teaching. In this study, the author of the paper has interviewed four future teachers of upper secondary school with biology as one of their main subjects.

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..

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..

Kunskap i biologi hos invandrarelever : En undersökning på en grundskola i Västra Götaland

The main purpose of this study was to examine the knowledge in biology by immigrant pupils. My investigation is based on the pupil and I have focused on positive and negative factors that affect their performance in biology.The study is based on marks in year 2006/2007, a survey and interviews made with four immigrant pupils at a compulsory school in Västra Götaland.The study indicates that the result in biology of immigrant pupils is lower compared to Swedish.Difficulties in language, the commitments by their parents and their surroundings are the main factors that affect their results negative..

Hur elever läser - En jämförande studie av gymnasieelevers lässtrategier i biologi och engelska; How students read - A comparative study of high school students? reading strategies in Biology and English

The purpose of this study was to identify reading strategies used by high school students when reading textbooks and school-related material. Any differences in reading strategies between Biology and English were also of importance. A study sample of 62 students from three different high schools in Sweden participated in the study and were asked to fill out a survey questionnaire. Eight students from this sample were also interviewed. The findings of this study show that students use a number of different reading strategies of which metacognitive and sociocultural factors play a crucial part.

Jag trivs bäst när havet svallar, och måsarna ger skri : En textanalytisk studie av biologisk mångfald i läroböcker

Biological diversity is one out of four dimensions, characterizing the subject of Biology ac-cording to the school curriculum. As a concept, biological diversity had its break through at the UN environmental conference in Rio de Janeiro in 1992, where the convention about bio-logical diversity, named CBD, was signed. According to the convention, almost all the na-tions of the world have engaged themselves to preserve the national diversity of species, in-cluding the diversity of genetics and ecological systems.This thesis focuses the biological diversity from the perspective of school books. The aim is to find out how the biological diversity is presented in biology books for students aged 12-15 years.In 1994, the current Swedish secondary and high school curriculum called LPO-94 was pre-sented. The biology books used in this study were published between 1994 and 2007, all of them exist in many editions and are published by three different publishers.The conclusion of the study is that all the biology books that were examined have reached different levels of the development in the field of biological diversity..

Odlingens betydelse för laktobacillers hälsoegenskaper i surdeg.

När man bakar ett surdegs bröd är det viktigt att hålla degens egenskaper konstanta så att de inte ändras från dag till dag. Detta går att underlätta genom att använda sig av en starterkultur. Beroende på vilken kultur man använder sig av får degen dess unika egenskaper. Man kan till exempel använda sig av en bakteriocinproducerande bakteriekultur som stabiliserar degen.I detta examensarbete försöktes tillväxten av Lactobacillus gasseri 42 att optimeras. L.

Gymnasiereformen 2007 : En studie om förändringarna inom biologiundervisningen och hur en öppen process bemöts av aktörer i skolans vardag

Next year, Swedish upper secondary school will be the arena for a new comprehensive reform according to an extensive government bill. The reform will probably have major impact on every-day educational practices. The aim of this paper is to describe the consequences forbiology teaching when the reform is implemented, and to analyse in what way the biology teachers, and other participants, take part in digitised discussion forums during the implementation of the reform.The research design consists of a quantitative approach and two different methods are used, i.e. descriptive content analysis and quantitative content analysis. The content and meaning of the government bill is analysed and the statements from the participants at the discussion forums are equally important in order to fulfil the aim of this inquiry.The results show the reform will have a profound impact on the subject biology, e.g.

Livet på gamla dar': en kvalitativ studie kring äldre personers livskvalitet.

The aim with our paper has been to get a picture of which factors one of the heterogeneous group that we've chosen of old persons, 75-90 years, in Scania, in south Sweden, have experienced to be of importance for their life quality today and what they wish to preserve of their actual life style when they eventually shall use the elderly care. Also how their individual life course has influenced their experience of the quality of life.We found this subject interesting as the group of old people in the society is constantly increasing and when the group becomes bigger, then greater demands will be put on the elderly care. We have proceeded from a standpoint that all people are unique individuals and that people become what they are from their life histories and from the choices they have made during their life. We have used the life course theory that says that one should see the individual in his/her wholeness and the whole life history of a person in order to understand him/her. We have also studied earlier research concerning the different determinants of the life quality.

Det emotionella valet - ett alternativ och komplement till rationaliteten

The purpose of this thesis is to evaluate and develop a useful theory of human behavior that recognizes the importance of our emotions. The new framework, called the theory of emotional choice, is developed by a holistic method in which results from the fields of psychology, sociology and (neuro-) biology are used to mutually support the conclusions. The theory is distilled into six preliminary points, which are based on the finding that we are not thinking as logical, rational and longsighted as is often assumed. Instead the regular human thinking is suggested to be shortsighted, intuitive and ruled by our emotions and our needs for generality, causality and normality.To demonstrate the usefulness of the new framework, it is used in an analysis of financial bubbles. Additionally, the fields of negotiation, election and ethics are suggested as potentially interesting to analyze with the new theory..

Sol, jord och vatten. : Barns tankar om den ekologiska processen

Studies show that the interest and knowledge about science among teenagers is decreasing. They also reveal the difficulties to explain the ecological processes and that the ideas about the nature are collected from everyday life and early school years.The intention of this investigation was to find out more about children?s ideas and knowledge about the ecological processes and to compare these results with the curriculum.The method was a questionnaire and interviews with children in school year 1 ? 6. The aim of the studies was also to find out if any progress connected to age could be found, concerning understanding of the ecological processes.The results showed difficulties in achieving the predestined goals for biology and chemistry concerning ecology cycles and they differed a lot between the children. Often the learning process showed very little progress.

Med hunden i fokus - en metod att identifiera hundars användningsområde utifrån det postkraniala skelettet

AbstractThis is a study of present day dogs with the purpose to establish a method to investigate archaeological dogs and determine their use in the past. The study has focused on measurements of five bone elements, scapula, humerus, radius, ulna and femur. A principal component analysis has been applied in order to decide which measurements to be further used in the analysis. Different proportions have been calculated on these measurements.A test to try the method has also been done on bones of a wolf and a dog without known background. The results from the different elements are positive, and they narrow the field down to two dog types of which one is more likely to be true than the other.The final results show that, although over lapses between the four different dog groups; hunting dogs, guard/work dogs, sled dogs and shepherd's dogs exists, it is possible to distinguish different dog usage from the proportions of the bones..

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