107 research outputs found
Current views on the regulation of autotrophic carbon dioxide fixation via the Calvin cycle in bacteria
Epigenetic control of gene expression in gametocytes during malaria transmission to the mosquito
Epigenetic control of gene expression in gametocytes during malaria transmission to the mosquito
Phosphoribulokinase from Nitrobacter winogradskyi: activation by reduced nicotinamide adenine dinucleotide and inhibition by pyridoxal phosphate
Preparation of cyanothiazolylpyrrolidinecarboxylates and related compounds as antivirals
Generation of wavelength-dependent, periodic line pattern in metal nanoparticle-containing polymer films by femtosecond laser irradiation
Thin polymer films containing metal nanoparticles were irradiated with ultrashort, linearly polarized laser pulses. As result of irradiation, nanostructural changes occur in a type of periodically arranged, line-like areas with modified particle size and shape distribution. The periodic formation in this nanocomposite material is observed only for a small filling factor range, which can be attributed to the percolation region or nearby. Transmission (also in cross section) and scanning electron microscopy were applied to investigate the optainet structure modifications. A linear dependency between the period Lambda of the line structures and the laser wavelength lambda (800, 528, 400 and 266 nm) used with Lambda/lambda about 0.70 is assumed. The structural changes and the physical mechanism of the periodic formation are discussed
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