Results 181 to 190 of about 5,534 (214)
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American Journal of Perinatology, 2008
Discordancy in twins is generally described as a weight difference between the fetuses of 15 to 25% and its prevalence in normal twin gestations is estimated at 15 to 29%. The present study was performed in order to determine the frequency of discordant newborns in uncomplicated triplet gestations.
N, Mordel +5 more
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Discordancy in twins is generally described as a weight difference between the fetuses of 15 to 25% and its prevalence in normal twin gestations is estimated at 15 to 29%. The present study was performed in order to determine the frequency of discordant newborns in uncomplicated triplet gestations.
N, Mordel +5 more
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Applied Optics, 1995
A grating-pair device is useful for producing negative group velocity dispersion of temporal optical signals. When high dispersion is needed or large bandwidth is involved, higher-order dispersion terms become significant. The grating triplet is a new approach to create dispersion that can produce negative or positive group-velocity dispersion without ...
D, Mendlovic, O, Melamed
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A grating-pair device is useful for producing negative group velocity dispersion of temporal optical signals. When high dispersion is needed or large bandwidth is involved, higher-order dispersion terms become significant. The grating triplet is a new approach to create dispersion that can produce negative or positive group-velocity dispersion without ...
D, Mendlovic, O, Melamed
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Triplet-triplet absorption in benzene
Tetrahedron, 1970Abstract Triplet-triplet absorption in benzene has been calculated semiempirically by considering all single excitations and a limited number of double excitations. The numerical results show several allowed 38Bu → 3E2g transitions of varying intensity.
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Triplet Energy Transfer and Triplet-Triplet Interaction in Aromatic Crystals
Physical Review Letters, 1963Triplet energy migration and triplet-triplet annihilation leading to fluorescence radiation are discussed. The molecular crystals considered are arthracene and naphthalene. Conclusions concerning the mechanism of the triplettriplet annihilation, the recombination of the ion pair, and the rate- determining step in the triplet-triplet annihilation are ...
Joshua Jortner +3 more
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Triplet‐triplet annihilation upconversion
Nachrichten aus der ChemieAbstractTriplet‐triplet annihilation upconversion can generate UV light from visible light LEDs and visible light from infrared. Producing higher‐energy photons at the location where they are needed is useful: some functional groups do not tolerate irradation with UV light, and visible light does not penetrate cells and polymers as deep as infrared ...
Line Næsborg, Rubaishan Jeyaseelan
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Journal of Electrocardiology
An elderly gentleman with ischemic cardiomyopathy with severe left ventricular dysfunction presented with acute decompensated heart failure and recurrent ventricular tachycardia which were cardioverted to sinus rhythm and put on amiodarone infusion.
Swasthi S, Kumar +2 more
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An elderly gentleman with ischemic cardiomyopathy with severe left ventricular dysfunction presented with acute decompensated heart failure and recurrent ventricular tachycardia which were cardioverted to sinus rhythm and put on amiodarone infusion.
Swasthi S, Kumar +2 more
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Homomolecular Triplet–Triplet Annihilation in Metalloporphyrin Photosensitizers
The Journal of Physical Chemistry AMetalloporphyrins are ubiquitous in their applications as triplet photosensitizers, particularly for promoting sensitized photochemical upconversion processes. In this study, bimolecular excited state triplet-triplet quenching kinetics, termed homomolecular triplet-triplet annihilation (HTTA), exhibited by the traditional triplet photosensitizers-zinc ...
Azka Arshad, Felix N. Castellano
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Direct Exciton Harvesting from a Bound Triplet Pair
Advanced Materials, 2022Matthew Sfeir, Luis M Campos
exaly