Sökning: "B-form"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet B-form.

1. 1. Åldersblandning i skolan : elevers erfarenheter

   Författare :Monika Vinterek; Daniel Kallos; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sweden; school; pupils; education; phenomenology; hermeneutic; life-world; interview; mixed-age; multi-age; ungraded; nongraded; combination class; vertical grouping; relationship; fenomenologi; intervju; livsvärld; skola; utbildning; skolhistoria; elever; årskursblandad; årskurslös; åldersintegrerad; klass; undervisning; B-form; relationer; Pedgogical work; Pedagogiskt arbete; pedagogiskt arbete; educational work;

   Sammanfattning : Mixing ages in school classes became more and more common during the last dec-ades of the 20th century. From being a way to organise classes out of necessity they have now come to be something which is implemented on the basis of pedagogical arguments. LÄS MER

3. 2. NMR studies of DNA structure and counterion behaviour

   Författare :Lorens van Dam; Gary Drobny; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical Chemistry; fysikalisk kemi;

   Sammanfattning : DNA is a polymer of nucleotides, each nucleotide consisting of a negatively charged phosphate group, a ribose sugar unit, and a purine or pyrimidine base. The secondary structure of DNA is commonly a double-helix with Watson-Crick paired bases. Several secondary structures, all with these features, are observed for DNA. LÄS MER

4. 3. Structural and Functional Studies of Peptidyl-prolyl cis-trans isomerase A and 1-deoxy-D-xylulose- 5-phosphate reductoisomerase from Mycobacterium tuberculosis

   Författare :Lena M Henriksson; Torsten Unge; Sherry L. Mowbray; Barbara Seaton; Uppsala universitet; []
   Nyckelord :Molecular biology; Mycobacterium tuberculosis; Rv0009; peptidyl-prolyl cis-trans isomerase; Rv2870c; 1-deoxy-D-xylulose-5-phosphate reductoisomerase; non-mevalonate pathway; DOXP MEP pathway; X-ray crystallography; Molekylärbiologi;

   Sammanfattning : Mycobacterium tuberculosis, the causative pathogen of tuberculosis, currently infects one-third of the world’s population, resulting in two million deaths annually. This clearly shows that tuberculosis is one of the most serious diseases of our times. LÄS MER

5. 4. DNA Binding of Metal Complexes. A Spectroscopic Study of Trigonal Ru(II)phenanthroline Complexes and Uranyl(VI) Ion with Respect to Specific Interactions with DNA

   Författare :Catharina Hiort; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; uranyl; nucleic acids; optical probes;

   Sammanfattning : The interaction of metal complexes with nucleic acids has attracted attention owing to their potentials as optical probes, probes of chirality, and for use as artificial restriction enzymes. To understand the underlying mechanisms in these contexts we studied the binding to DNA of the enantiomers of two chiral ruthenium(II) metal complexes ([Ru(phen)3]2+ and [Ru(phen)2]2+DPPZ) phen=1,10-phenanthroline, DPPZ=dipyrido[3,2-a:2',3'-c]phenazine, and of the linear uranium(VI) complex, uranyl ([UO2]2+), using linear dichroism, circular dichroism and luminescence, as well as nuclear magnetic resonance spectroscopy. LÄS MER

7. 5. Enzyme catalysis towards bio-based UV-curable buildingblocks

   Författare :Maja Finnveden; Mats Martinelle; Katja Loos; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Enzyme; Enzymatic Polymerizations; Biocatalysis; Lipase; CalB; MsAcT; Substrate specificity; Selectivity; Polymer Chemistry; UV-curring; Bioteknologi; Biotechnology;

   Sammanfattning : Polymeric materials are found in virtually all areas of daily life; they are found in everything from packages keeping our food safe to the buildings where we spend our days, and the production is a worldwide industry. Although polymeric materials play a big part in sustainable solution’s, a lot can be done to develop more environmental methods for producing them. LÄS MER