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Faqja 1 nga 22 rezultatet
Effects of two-photon absorption on degenerate four-wave mixing in solutions of diphenyl polyenes.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
We have observed double-peaked phase-conjugate pulses in the degenerate four-wave mixing of nanosecond laser pulses in solutions of diphenyl polyenes. We attribute this to the superposition of fast and slow gratings, where the slow grating is due to two-photon absorption. This is supported by the
[Effect of polyene antibiotics on the development of alcoholic-dietary fatty degeneration of the liver in rats].
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
The effect of the sodium salts of levorin, isolevorin, nystatin and amphotericin B prepared with the use of sodium desoxycholate and amphoglucamine on the development of fatty degeneration of the liver was studied in rats. Fatty degeneration of the liver was induced in the animals by the diet
Ground- and excited-state vibrational coherence dynamics in Bacteriorhodopsin probed with degenerate four-wave-mixing experiments.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Vibrational coherence dynamics in the all-trans retinal chromophore in Bacteriorhodopsin (BR) are investigated by means of temporally and spectrally resolved degenerate four-wave-mixing experiments. The coherence dynamics depend on the excitation wavelength when BR samples are excited at different
Targeting excited states in all-trans polyenes with electron-pair states.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Wavefunctions restricted to electron pair states are promising models for strongly correlated systems. Specifically, the pair Coupled Cluster Doubles (pCCD) ansatz allows us to accurately describe bond dissociation processes and heavy-element containing compounds with multiple quasi-degenerate
Ab initio study of the excited singlet states of all-trans alpha,omega-diphenylpolyenes with one to seven polyene double bonds: Simulation of the spectral data within Franck-Condon approximation.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Computational simulations of the electronic spectra with ab initio electronic structure calculations are presented for all-trans alpha,omega-diphenylpolyenes with the polyene double bond number (N) from 1 to 7. A direct comparison of the fluorescence spectra of diphenylpolyenes was made between the
Permeabilizing and hemolytic action of large and small polyene antibiotics on human erythrocytes.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
The effects of large polyenes (heptaenes and the "degenerate heptaene" nystatin) on human erythrocytes were found to occur in three separate stages. Stage I was a reversible increase in cell membrane permeability to monovalent cations and occurred at low antibiotic concentrations. At intermediate
Oxidative stress, polyunsaturated fatty acids-derived oxidation products and bisretinoids as potential inducers of CNS diseases: focus on age-related macular degeneration.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Many pathologies of the central nervous system (CNS) originate from excess of reactive free radicals, notably reactive oxygen species (ROS), and oxidative stress. A phenomenon which usually runs in parallel with oxidative stress is unsaturated lipid peroxidation, which, via a chain reaction,
Excited States of Methylene, Polyenes, and Ozone from Heat-Bath Configuration Interaction.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
The electronically excited states of methylene (CH2), ethylene (C2H4), butadiene (C4H6), hexatriene (C6H8), and ozone (O3) have long proven challenging due to their complex mixtures of static and dynamic correlations. The semistochastic heat-bath configuration interaction (SHCI) algorithm, which
Multidimensional time-resolved spectroscopy of vibrational coherence in biopolyenes.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Multidimensional femtosecond time-resolved vibrational coherence spectroscopy allows one to investigate the evolution of vibrational coherence in electronic excited states. Methods such as pump-degenerate four-wave mixing and pump-impulsive vibrational spectroscopy combine an initial ultrashort
Reproductive toxicology and nutritional studies on mahua oil (Madhuca latifolia).
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Mahua (Madhuca latifolia, Sapotaceae) seed oil is a common ingredient of hydrogenated fat in India. It is obtained from the seed kernels (which contain 45% oil, w/w), and is a pale yellow, semi-solid fat at room temperature. It has palmitic (19%), stearic (15%), oleic (42%) and linoleic (24%) as a
Freeze-fracture study of filipin binding in photoreceptor outer segments and pigment epithelium of dystrophic and normal retinas.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
We have studied sterol distribution in the retinal pigment epithelial (RPE) microvillous and outer segment disc membranes of rats with inherited retinal degeneration (RCS; RCS-p/+) and of normal genetic controls (RCS-rdy+, RCS-rdy+-p/+) by using the polyene antibiotic filipin, which binds
Electrostatic Topographical Viewpoint of π-Conjugation and Aromaticity of Hydrocarbons.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
A molecular electrostatic potential (MESP) topographical study has been conducted for a variety of conjugated hydrocarbons at B3LYP/6-311+G(d,p) level of theory to understand their π-conjugation features and aromaticity. The value of MESP minimum (Vm) is related to the
[Problems of the prophylactic use of antibiotics in cell culture]
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
The article describes the historical development of the prophylactic use of antibiotics in cell culture as well as the effect of antibiotics on cells, i.e. the beta-lactam antibiotic penicillin, the aminoglycosid antibiotics (streptomycin, neomycin, kanamycin, gentamycin) and the polyene macrolids
In vitro efficacy of corifungin against Acanthamoeba castellanii trophozoites and cysts.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Painful blinding keratitis and fatal granulomatous amebic encephalitis are caused by the free-living amebae Acanthamoeba spp. Several prescription eye medications are used to treat Acanthamoeba keratitis, but the infection can be difficult to control because of recurrence of infection. For the
Vibrational analysis of excited and ground electronic states of all-trans retinal protonated Schiff-bases.
Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
We report on vibrational coherence dynamics in excited and ground electronic states of all-trans retinal protonated Schiff-bases (RPSB), investigated by time-resolved Degenerate Four-Wave-Mixing (DFWM). The results show that wave packet dynamics in the excited state of RPSB consist of only
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