Results 21 to 30 of about 612,558 (267)

Amylose Inter-Chain Entanglement and Inter-Chain Overlap Impact Rice Quality

open access: yesFoods, 2022
Retrogradation of cooked rice happens in two ways: one is by the formation of ordered structures, and the other is through intra- and inter-chain entanglement and inter-chain overlap, which in turn are affected by the amylose chain-length distribution ...
Changfeng Li   +6 more
doaj   +1 more source

Notes on the male genitalia of species of Ravinia and Chaetoravinia (Diptera: Sarcophagidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1991
Based on scanning electron microscope (SEM) estudies, the male genitalia of three species of Ravinia and two species of Chaetoravinia (Diptera: Sarcophagidae, subtribe Raviniina) are described and compared.
Hugo de Souza Lopes   +1 more
doaj   +1 more source

Bottom-up and top-down neural signatures of disordered multi-talker speech perception in adults with normal hearing

open access: yeseLife, 2020
In social settings, speech waveforms from nearby speakers mix together in our ear canals. Normally, the brain unmixes the attended speech stream from the chorus of background speakers using a combination of fast temporal processing and cognitive active ...
Aravindakshan Parthasarathy   +4 more
doaj   +1 more source

Basic biology of Pneumocystis carinii: a mini review

open access: yesMemorias do Instituto Oswaldo Cruz, 2005
Basic aspects of cell biology of Pneumocystis carinii are reviewed with major emphasis on its life cycle and the structural organization of the trophozoites and cyst forms.
Wanderley de Souza, Marlene Benchimol
doaj   +1 more source

Fine Structure of Heliumlike Ions and Determination of the Fine Structure Constant [PDF]

open access: yesPhysical Review Letters, 2010
We report a calculation of the fine structure splitting in light helium-like atoms, which accounts for all quantum electrodynamical effects up to order α^5 Ry. For the helium atom, we resolve the previously reported disagreement between theory and experiment and determine the fine structure constant with an accuracy of 31 ppb. The calculational results
Pachucki, Krzysztof   +1 more
openaire   +3 more sources

Efferent modulation of stimulus frequency otoacoustic emission fine structure

open access: yesFrontiers in Systems Neuroscience, 2015
Otoacoustic emissions, sounds generated in the inner ear, have become a convenient non-invasive tool to examine the efferent modulation of cochlear mechanics.
Wei eZhao   +4 more
doaj   +1 more source

FINE STRUCTURE OF MYCOTA [PDF]

open access: yesThe Journal of Cell Biology, 1961
Though the dictyosome of the Golgi apparatus appears to be generally distributed in plant and animal cells, it is here described for the first time in the fungi. The present report illustrates, in electron micrographs of thin sections, the characteristic structure of the Golgi dictyosome in a special cell type of a supporting pseudo-tissue (the inner ...
Royall T. Moore, James H. McAlear
openaire   +1 more source

Determination of the Fine Structure Constant Using Helium Fine Structure [PDF]

open access: yesPhysical Review Letters, 2010
We measure 31,908,131.25(30) kHz for the 2(3)}P J=0 to 2 fine structure interval in helium. The difference between this and theory to order mα7 (20 Hz numerical uncertainty) implies 0.22(30) kHz for uncalculated terms. The measurement is performed by using atomic beam and electro-optic laser techniques.
Marc, Smiciklas, David, Shiner
openaire   +2 more sources

Analyzing the neocortical fine-structure [PDF]

open access: yesMedical Image Analysis, 2001
Cytoarchitectonic fields of the human neocortex are defined by characteristic variations in the composition of a general six-layer structure. It is commonly accepted that these fields correspond to functionally homogeneous entities. Diligent techniques were developed to characterize cytoarchitectonic fields by staining sections of post-mortem brains ...
Frithjof Kruggel   +4 more
openaire   +4 more sources

Super Transition Arrays: A Tool for Studying Spectral Properties of Hot Plasmas

open access: yesPlasma, 2021
For the theoretical study of X and extreme-UV spectra of ions in plasmas, quantum mechanics brings more detailed results than statistical physics. However, it is impossible to handle individually the billions of levels that must be taken into account in ...
Jean-Christophe Pain
doaj   +1 more source

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