Results 41 to 50 of about 13,168,725 (351)

Lewis-Sumner syndrome: subacute bilateral lesion of brachial plexus

open access: yesNeurologijos seminarai, 2018
Lewis-Sumner syndrome (LSS) is a multifocal acquired demyelinating sensory and motor neuropathy considered as an asymmetric variant of chronic inflammatory demyelinating polyneuropathy affecting the upper and/or lower extremities.
R. Bunevičiūtė   +2 more
doaj   +1 more source

Significance of melting heat transfer in bio-convective thixotropic nanofluid

open access: yesAin Shams Engineering Journal, 2022
This work studies bio-convective thixotropic nanomaterial flow due to stretchable surface. Importances of bio-convection and melting impact are examined. Nanofluid significance through thermophoresis and Brownian diffusion is considered.
T. Hayat   +4 more
doaj   +1 more source

New Lewis Structures through the application of the Hypertorus Electron Model [PDF]

open access: yes, 2010
The hypertorus electron model is applied to the chemical bond. As a consequence, the bond topology can be determined. A linear correlation is found between the normalized bond area and the bond energy. The normalization number is a whole number.
Omar Yepez
core   +3 more sources

Quantitative phase-field modeling of solidification at high Lewis number [PDF]

open access: yesPhysical Review E, 2009
A phase-field model of nonisothermal solidification in dilute binary alloys is used to study the variation of growth velocity, dendrite tip radius, and radius selection parameter as a function of Lewis number at fixed undercooling. By the application of advanced numerical techniques, we have been able to extend the analysis to Lewis numbers of order 10
Rosam, J, Jimack, PK, Mullis, AM
openaire   +3 more sources

The effects of unburned-gas temperature on intrinsic instability of premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions

open access: yesMechanical Engineering Journal, 2017
We treated numerically premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions to elucidate the effects of unburned-gas temperature on intrinsic instability.
Thwe Thwe Aung   +2 more
doaj   +1 more source

Thermo diffusion and diffusion thermo impacts on bioconvection Walter-B nanomaterial involving gyrotactic microorganisms

open access: yesAlexandria Engineering Journal, 2021
Here magnetohydrodynamic (MHD) bioconvection Walter-B nanofluid flow due to stretched sheet is considered. Significance of motile gyrotactic microorganisms and melting phenomena are scrutinized.
T. Hayat   +3 more
doaj   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

open access: yesMolecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau   +8 more
wiley   +1 more source

Experimental and theoretical study of catalytic and radiative characteristics of anti-oxidation and anti-erosion coatings for high-speed aircraft

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
The catalytic activity coefficient and emissivity of the surface of thin-walled oxidation- and erosion-resistant coatings for high-speed aircraft were determined experimentally and theoretically.
O. V. Tushavina
doaj   +1 more source

Lewis' law revisited: the role of anisotropy in size–topology correlations

open access: yesNew Journal of Physics, 2014
Since F T Lewis' pioneering work in the 1920s, a linear correlation between the average in-plane area of domains in a two-dimensional (2D) cellular structure and the number of neighbors of the domains has been empirically proposed, with many supporting ...
Sangwoo Kim   +2 more
doaj   +1 more source

Syntheses of (+)-30-epi-, (-)-6-epi-, (±)-6,30-epi-13,14-didehydroxyisogarcinol and (±)-6,30-epi-garcimultiflorone A utilizing highly diastereoselective, Lewis acid-controlled cyclizations [PDF]

open access: yes, 2016
The first syntheses of 13,14-didehydroxyisogarcinol (6) and garcimultiflorone A (5) stereoisomers are reported in six steps from a commercially available phloroglucinol.
Boyce, Jonathan H.   +2 more
core   +1 more source

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