1,839 research outputs found
Frequency-modulation saturation spectroscopy of molecular iodine hyperfine structure near 640 nm with a diode laser source
In a frequency-modulation spectroscopy experiment, using the radiation from a
single frequency diode laser, the spectra of molecular iodine hyperfine
structure near 640 nm were recorded on the transition
. The frequency reference given by the value
of the modulation frequency (12.5 MHz in given experiment) allows determination
of the frequency differences between hyperfine components with accuracy better
than 0.1 MHz using the fitting procedure in experiment with only one laser.Comment: 3 pages, 3 figure
Peculiarities of polyneuropathy in the peripheral t-cell lymphoma with cytostatics
This paper presents data on the occurrence and form of polyneuropathy in the peripheral T-cell lymphoma, and its main pathogenesis elements. Here the toxic effects of cytotoxic drugs and their role in the impairment of the nervous system have been describe
Coarse-graining diblock copolymer solutions: a macromolecular version of the Widom-Rowlinson model
We propose a systematic coarse-grained representation of block copolymers,
whereby each block is reduced to a single ``soft blob'' and effective intra- as
well as intermolecular interactions act between centres of mass of the blocks.
The coarse-graining approach is applied to simple athermal lattice models of
symmetric AB diblock copolymers, in particular to a Widom-Rowlinson-like model
where blocks of the same species behave as ideal polymers (i.e. freely
interpenetrate), while blocks of opposite species are mutually avoiding walks.
This incompatibility drives microphase separation for copolymer solutions in
the semi-dilute regime. An appropriate, consistent inversion procedure is used
to extract effective inter- and intramolecular potentials from Monte Carlo
results for the pair distribution functions of the block centres of mass in the
infinite dilution limit.Comment: To be published in mol.phys(2005
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