Results 51 to 60 of about 424,186 (295)

Knockdown of HCK promotes HREC cell viability and inner blood–retinal barrier integrity by regulating the AMPK signaling pathway

open access: yesOpen Life Sciences
Diabetic retinopathy (DR), a major complication of diabetes causing blindness, is characterized by retinal damage due to capillary degeneration and vascular leakage.
Chen Lu, Lin Chengmin
doaj   +1 more source

Editorial comments

open access: yesHealth SA Gesondheid: Journal of Interdisciplinary Health Sciences, 2007
In the true interdisciplinary spirit of Health SA Gesondheid, this volume presents to our discerning readers a smorgasbord of articles. Once again, authors ranging from emergency medical care, public health workers, pharmacists and psychologists to ...
Gertie HG Pretorius
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Adjustment of Coatings Morphology and Particle Distribution of Layered Silicates by Freeze‐Drying for Improved Gas Barriers

open access: yesAdvanced Engineering Materials, EarlyView.
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes   +4 more
wiley   +1 more source

Simultaneous Determination of Trace As, Sb, Bi and Hg in Soils by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry

open access: yesYankuang ceshi, 2013
A method for the simultaneous determination of the trace contents of As, Sb, Bi and Hg in the same solution by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry (HG-ICP-AES) was established by using 10% hydrochloric acid as the ...
HE Pan-hong   +5 more
doaj  

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Thiosulphate assisted phytoextraction of mercury contaminated soils at the Wanshan Mercury Mining District, Southwest China

open access: yesJournal of Degraded and Mining Lands Management, 2013
Wanshan, known as the “Mercury Capital” of China, is located in the Southwest of China. Due to the extensive mining and smelting works in the Wanshan area, the local ecosystem has been serious contaminated with mercury.
J. Wang, X, Feng, C.W.N. Anderson
doaj   +3 more sources

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan   +16 more
wiley   +1 more source

Wie was Jesus werklik?

open access: yesActa Theologica, 1995
Die Evangelies skilder vir ons vier verskillende portrette van Jesus. Hoewel hulle dit klaarblyklik oor dieselfde Jesus het, vertel elkeen die verhaal met sy eie oogmerke voor oë, vir 'n spesifieke gehoor (wat verskil van die ander drie s'n), en op sy ...
HG van Zyl
doaj   +1 more source

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