Results 101 to 110 of about 1,170,845 (279)

How to Chemically Protect PFAS‐Free Membranes in Fuel Cells: Radical Quenching Poly(vinylphosphonic acid) Layer

open access: yesAdvanced Functional Materials, EarlyView.
Hydrocarbon membranes are a greener alternative to PFSA in PEM fuel cells, but degrade rapidly from radical attack. We present a novel strategy using poly(vinylphosphonic acid) (PVPA) as a local radical scavenger. Incorporated as an interfacial barrier, PVPA enhances chemical stability and significantly extends membrane lifetime under accelerated ...
Hendrik Sannemüller   +6 more
wiley   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

open access: yesAdvanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante   +17 more
wiley   +1 more source

Kisspeptina en becerras prepúberes: I. Influencia de la edad en la respuesta de LH, FSH y GH a kisspeptina-10 y su asociación con IGF-I, leptina y estradiol

open access: yesRevista Mexicana de Ciencias Pecuarias, 2017
El objetivo fue evaluar la respuesta de LH, FSH y GH a kisspeptina-10 (KISS) en becerras prepúberes de distintas edades, y su asociación con IGF-I, E2 y leptina circulantes. A 21 becerras de 4, 7 y 11 meses de edad se les aplicó una inyección i.v.
Mónica Alamilla Rodríguez   +10 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Organometallic Precursor‐Induced Gradient Architecture on Multilayer Nanoporous Graphene Membranes for Precise Organic Solvent Nanofiltration

open access: yesAdvanced Functional Materials, EarlyView.
Alumina growth narrows surface pores and seals non‐selective defects, enhancing selectivity while preserving the nanoporous graphene architecture. Additionally, the deposition enables gradient‐controlled structural modification, with intergrown alumina acting as a physical cross‐linker that stabilizes the laminar structure.
Junhyeok Kang   +8 more
wiley   +1 more source

The evaluation of gonadotropins (FSH, LH) and testicular pathology in infertile men

open access: yesCaspian Journal of Reproductive Medicine, 2016
Background: Azoospermia is the most challenging issue associated with infertility treatment. The aim of this study was to re-examine the relationship between plasma levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) with testicular
Hamid Shafi   +2 more
doaj  

اثر عصاره الکلی گیاه آب بشقابی بر غلظت سرمی تستوسترون، FSH و LH در موش صحرایی نر نژاد ویستار [PDF]

open access: yesمجله دانشگاه علوم پزشکی سبزوار, 1970
زمینه و هدف: تعداد اسپرم ها و قدرت باروری آن ها به سطح هورمون های آندروژنی خون وابسته است. بنابراین احتمال می رود که عصاره گیاه آب بشقابی بر سطح هورمون های موثر در روند اسپرماتوژنز اثر بگذارد. به همین منظور، مطالعه ای با هدف تعیین اثر عصاره الکلی گیاه آب
فاخر رحیم   +2 more
doaj  

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee   +5 more
wiley   +1 more source

Two‐Way Shape Memory Alloy and Polymer Composite Hybrid Smart Actuator With High Speed, Accuracy, and Reversible Deformation

open access: yesAdvanced Functional Materials, EarlyView.
Tailored thermo‐mechanical properties of shape memory polymer composites enable large reversible deformation as well as high actuation speed. Moreover, a structural design with curvature in the transverse direction achieves sub‐second actuation on heating and a larger recovery ratio on cooling. Finally, these newly developed smart two‐way actuators can
Dajeong Kang   +6 more
wiley   +1 more source

تاثیر اکسکاربازپین بر میزان FSH، LH و تستوسترون [PDF]

open access: yesمجله دانشگاه علوم پزشکی سبزوار, 1970
زمینه و هدف: اکسکاربازپین به عنوان یک داروی جدید ضد صرع کاربرد فراوانی دارد. مطالعات الکتروفیزیولوژی نشان می دهد که این دارو باعث انسداد کانال های سدیمی وابسته به ولتاژ، افزایش کارآیی غشاهای عصبی و مهار انتشار ایمپالس های سیناپسی می شود. با توجه به اثرات
زینب امیری   +1 more
doaj  

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