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The paper presents two pedagogical scenarios that use pen-based technology, aimed at improving the quality and efficiency of the instructional process in higher education, in the framework of a computer science course. The pedagogical strategy exploits the use of concept maps to increase meaningful learning and conceptual reasoning, and tries to sh...
A normal and a tumoral chromatin radiosensitivity to an UV laser radiation was determined. The characteristics of these chromatin samples were established by the analysis of the absorption and emission spectra of chromatin complexes with a specific DNA ligand-ethidium bromide, by Scatchard representations of ligand binding to chromatin and by the F...
Chromatin is a complex of deoxyribonucleic acid (DNA) with proteins, that exists in the nuclei of eukaryotic cells. Three methods have been used to study protein-DNA interactions in chromatin and to compare the chromatin from normal tissue with that from tumoral tissue: determination of the fluorescence lifetimes and measurement of the heats of rea...