Results 111 to 120 of about 636,797 (344)

Projective geometries arising from Elekes-Szab\'o problems

open access: yes, 2019
We generalise the Elekes-Szab\'o theorem to arbitrary arity and dimension and characterise the complex algebraic varieties without power saving. The characterisation involves certain algebraic subgroups of commutative algebraic groups endowed with an ...
Bays, Martin, Breuillard, Emmanuel
core  

Brown bullhead catfish (ameiurus nebulosus) in Lake Taupo [PDF]

open access: yes, 2003
Brown bullhead catfish (Ameiurus nebulosus) were first discovered in Lake Taupo during the early 1980s and are believed to have originated from an illegal liberation into the southern end of the lake.
Barnes, Grant E., Hicks, Brendan J.
core  

The precision of visual working memory is set by allocation of a shared resource.

open access: yesJournal of Vision, 2009
The mechanisms underlying visual working memory have recently become controversial. One account proposes a small number of memory "slots," each capable of storing a single visual object with fixed precision. A contrary view holds that working memory is a
P. Bays, Raquel F G Catalao, M. Husain
semanticscholar   +1 more source

Modular Platform for Rapidly Investigating Long‐Distance Propagation of Human Neural Network Activity

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents the first human neural organoid culture model capable of rapidly exhibiting long‐distance neural network propagation, thus delivering a system to experimentally investigate large‐scale communication during normal and diseased states.
Megh Dipak Patel   +6 more
wiley   +1 more source

Development of a Synthetic 3D Platform for Compartmentalized Kidney In Vitro Disease Modeling

open access: yesAdvanced Healthcare Materials, EarlyView.
A fully synthetic, compartmentalized 3D kidney disease model is introduced. The kidney model combines a PEG‐based hydrogel matrix with anisotropic, enzymatically degradable rod‐shaped microgels to spatially arrange a triple co‐culture of key renal epithelial, endothelial, and fibroblast cells.
Ninon Möhl   +8 more
wiley   +1 more source

A tackle box guide to: common saltwater fishes of southwest Florida [PDF]

open access: yes, 1993
There are well over 150 species of fish caught by hook and line in local waters. The 86 species included in this book were selected by the author and editors because they are the most frequently encountered.
Allen, Ralph   +4 more
core  

Biofabrication of Endothelialized, Intrinsically Vascularized 3D‐Printed Recombinant Spider Silk Scaffolds

open access: yesAdvanced Healthcare Materials, EarlyView.
This study evaluates 3D‐printed recombinant spider silk hydrogel eADF4(C16)‐RGD in a rat AV loop model for tissue engineering. Constructs with T17b endothelial progenitor cells showed enhanced vascularization and biodegradation. Results highlight the importance of scaffold design and cellular integration in improving vascular density and overall ...
Claire M. Weinhold   +9 more
wiley   +1 more source

Spatial and temporal effects of the Rincon Bayou Pipeline on hypersaline conditions in the Lower Nueces Delta, Texas, USA

open access: yesTexas Water Journal, 2015
The Rincon Bayou Pipeline became operational in 2007 and delivers Nueces River water to the Nueces Delta via the Rincon Bayou. Salinity was monitored during 3 pumping events to identify the spatial and temporal effects of the pumped freshwater to the ...
Erin M. Hill   +2 more
doaj  

Design evolution of a low shock release nut [PDF]

open access: yes, 1976
Design improvements and detailed functional analyses are reviewed to trace the development of a pyroactuated release device with segmented thread design from its intermediate design into one that reduces the levels of shock spectra generated during its ...
Gordon, W., Otth, D. H.
core   +1 more source

Crystal Engineering of Reticular Materials for Gas‐ and Liquid‐Phase Hydrocarbon Separation

open access: yesAdvanced Materials, EarlyView.
Crystal engineering enables systematic study of structure/function relationships as exemplified by pore engineering of reticular sorbents, including porous coordination networks and covalent organic frameworks. This review assesses such studies applied across the full scope of industrially relevant hydrocarbon separations to provide insight into how ...
Xia Li   +2 more
wiley   +1 more source

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