Results 51 to 60 of about 159,531 (259)

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Channel Flow and Flood Estimate

open access: yesAnnals of West University of Timisoara: Physics, 2016
The movement of water on the land surface, within channels and through the soil is dependent on some hydrological factors. For surface flow, the velocity of flow increases with the bottom gradient of the channel and the flow depth, but when roughness ...
Adegoke James A., Fakunle Mutiu A.
doaj   +1 more source

A predictive model obtained by identification for the ultrasonic “equivalent” flow velocity at surface vicinity

open access: yesUltrasonics Sonochemistry, 2010
In the specific applications of surface cleaning and electrochemistry which consist of processes implanting surface irradiation by ultrasound, design of large-scale devices requires us to understand acoustic field distribution together with its quantification.
Mandroyan, A.   +3 more
openaire   +3 more sources

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

Flow in a Low Specific Speed Centrifugal Pump Using PIV

open access: yesAdvances in Mechanical Engineering, 2013
The interflow plays important roles in centrifugal pump design. In order to study the effect of rotation and z -axis on internal flow, two-dimensional particle image velocimetry (PIV) measurements have been performed to measure the steady velocity field ...
Cui Dai, Liang Dong
doaj   +1 more source

Influence of aquatic vegetation on flow structure under wind-driven waves: a case study in Lake Taihu (China) with two typical submerged vegetations

open access: yesShui kexue jinzhan, 2020
To study the influence of aquatic vegetation on flow structure under wind-driven waves, field experiments were conducted with two types of typical submerged vegetation (i.e., Vallisneria natans and Potamogeton malaianus) in Lake Taihu in China by ...
Yinghao ZHANG   +4 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Multidimensional Profiling of MRI‐Negative Temporal Lobe Epilepsy Uncovers Distinct Phenotypes

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Although hippocampal sclerosis (TLE‐HS) represents the most frequent cause of temporal lobe epilepsy (TLE), up to 30% of patients show no lesion on visual MRI inspection (TLE‐MRIneg). These cases pose diagnostic and therapeutic challenges and are underrepresented in surgical series.
Alice Ballerini   +28 more
wiley   +1 more source

Effect of the wall structure on nanochannel gas flow: A molecular dynamics study

open access: yesJournal of Thermal Science and Technology, 2015
Nonequilibrium molecular dynamics simulations are performed for force-driven argon gas nanochannel flow to investigate the effect of the nanoscopic wall structure on the gas flow characteristics.
Haruka YASUOKA   +3 more
doaj   +1 more source

Bi‐ and Mono‐Allelic RFC1 Expansion in a North American Cohort With Idiopathic Axonal Neuropathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective RFC1 biallelic repeat expansion is increasingly recognized as a cause of chronic idiopathic axonal polyneuropathy (CIAP), but it remains challenging to know who to test. This study aims to determine the prevalence of biallelic and monoallelic RFC1 expansions and their corresponding neuropathy phenotypes in CIAP patients and identify ...
Amro M. Stino   +25 more
wiley   +1 more source

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