20 research outputs found
Down-szindrómások oktatási lehetőségei
A szakirodalmi kutatásom célja,hogy egy átfogó képet kapjak arra nézve, hogy a Down- szindrómásoknak, milyen lehetőségeik vannak az oktatásban.Fontosnak tartom a téma vizsgálatát egyrészt demográfiai okok miatt; közismert tény, és a terhesgondozás alatt is figyelmeztetnek rá, hogy az életkor előrehaladtával növekszik a Down- szindróma kialakulásának kockázata.Dolgozatom legfontosabb kérdése az, hogy van-e Down-szindróma specifikus pedagógia.
Ha van min alapszik és mit tartalmaz? Ha nincs, akkor milyen alapelvek alapján történik az érintettek oktatása-nevelése.BSc/BAFejlesztőpedagógu
Membrane Crystals of Plant Light-Harvesting Complex II Disassemble Reversibly in Light.
Using the mass-measuring capability of scanning transmission electron microscopy, we demonstrate that membrane crystals of the main light-harvesting complex of plants possess the ability to undergo light-induced dark-reversible disassociations, independently of the photochemical apparatus. This is the first direct visualization of light-driven reversible reorganizations in an isolated photosynthetic antenna. These reorganizations, identified earlier by circular dichroism (CD), can be accounted for by a biological thermo-optic transition: structural changes are induced by fast heat transients and thermal instabilities near the dissipation, and self-association of the complexes in the lipid matrix. A comparable process in native membranes is indicated by earlier findings of essentially identical kinetics, and intensity and temperature dependences of the DeltaCD in granal thylakoids
Characterization of the Light-Induced Reversible Structural Changes in Granal Thylakoid Membranes
In vivo conversion of triacylglycerol to docosahexaenoic acid-containing phospholipids in a thraustochytrid-like microorganism, strain 12B
Reversible membrane reorganizations during photosynthesis in vivo: revealed by small-angle neutron scattering
In the present study, we determined characteristic repeat distances of the photosynthetic membranes in living cyanobacterial and eukaryotic algal cells, and in intact thylakoid membranes isolated from higher plants with time-resolved small-angle neutron scattering. This non-invasive technique reveals light-induced reversible reorganizations in the seconds-to-minutes time scale, which appear to be associated with functional changes in vivo. © The Authors Journal compilation © 2011 Biochemical Society