Results 161 to 170 of about 17,713 (284)

Resonatorless optical bistability in transmission of thin semiconductor film

Moldavian Journal of the Physical Sciences, 2005
The optical bistability phenomenon in the steady-state light transmission by a thin semiconductor film is studied taking into account two-pulse two-photon excitation of biexcitons from the ground state of the crystal.
Hadji, Piotr, Marcov, Dmitry, Corovai, Alexandru   +2 more
doaj  

Perceptual Priors Update Contextual Feedback Processing in V1

Topics in Cognitive Science, EarlyView.
Abstract Contextual information and prior knowledge facilitate perceptual processing, improving our recognition of even distorted or obstructed visual inputs. As a result, neuronal processing elicited by identical sensory inputs varies depending on the context in which we encounter those inputs.
Yulia Y. Lazarova, Yingying Huang, Lars F. Muckli, Lucy S. Petro   +3 more
wiley   +1 more source

Electrical bistability and negative differential resistance in diodes based on silver nanoparticle-poly(N-vinylcarbazole) composites

, 2010
An electrically bistable device has been fabricated using nanocomposite films consisting of silver nanoparticles and a semiconducting polymer by a simple spin-coating method.
Qu SC (Qu Shengchun), Tan HR (Tan Hairen), Liu J (Liu Jie), Teng F (Teng Feng), Tang, AW, Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China. 电子邮箱地址: qsc@semi.ac.cn, Wang ZG (Wang Zhanguo), Zhang XW (Zhang Xingwang), Tang AW (Tang Aiwei), Hou YB (Hou Yanbing), fteng@bjtu.edu.cn, Wang YS (Wang Yongsheng)   +10 more
core  

Cellular mechanisms of radiation‐induced myocyte dysfunction: effects on calcium handling, ion channel regulation and mitochondrial energetics

The Journal of Physiology, EarlyView.
Abstract figure legend Dose‐dependent effects of radiation on cardiac electrophysiology and arrhythmia susceptibility. At low radiation doses (left), increased reactive oxygen species (ROS) initiate an ROS–Ca2+ positive feedback loop involving calcium/calmodulin‐dependent protein kinase II (CaMKII) activation, enhanced L‐type Ca2+ current (ICaL ...
Hannah M. Zukowski, Colleen E. Clancy
wiley   +1 more source

Stretch Tunable Active Frequency Selective Fabric for Dynamically Switchable Bandstop and Transparency

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
This stretchable active frequency selective fabric achieves reversible switching between bandstop and transparent states through strain‐induced reconfiguration of its conductive network. Its zero‐power and mechanically tunable characteristics offer potential for wearable electromagnetic functional materials.
Hao Feng, Zhenjia Zhou, Hongling Liu, Yong Wang, Fuwang Guan, Ni Wang, Weidong Yu   +6 more
wiley   +1 more source

Redox‐Active Guanidines

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley   +1 more source

Optical Bistability in Photonic Topological Hypercrystals and Its Applications in Photonic Neural Network. [PDF]

Nanomaterials (Basel)
Li H, Duan B, Zhu T, Shan S, Lin L, Li C, Li Z.   +6 more
europepmc   +1 more source

Multidecadal Atlantic “Warming Hole” Heat Content Variations Are Caused by Ocean Heat Transport, Not by Surface Fluxes

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The northern Atlantic south of Greenland and Iceland is the only part of the world which has cooled significantly since the 19th Century both in the atmosphere and ocean. The oceanic cooling is widely assumed to be a result of reduced ocean heat transport into this region.
Stefan Rahmstorf, Jan Jendrkowiak, Ruijian Gou, Lijing Cheng, Angel Ruiz‐Angulo, Halldór Björnsson   +5 more
wiley   +1 more source

Multilevel selection in multitype populations. [PDF]

PNAS Nexus
de Azevedo-Lopes A, Traulsen A.
europepmc   +1 more source

Impacts of Deforestation‐Driven Rainfall Reductions on Amazonia Forest Stability

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The stability of Amazonian vegetation is strongly influenced by land–atmosphere feedbacks. It has been hypothesized that deforestation‐induced precipitation decline may lead to widespread forest decline across the entire basin. Using a moisture‐tracking model, we quantify how deforestation across South America alters downwind rainfall and ...
Luís Gustavo Cattelan, Marina Hirota, Jessica C. A. Baker, Jefferson Gonçalves De Souza, Ana Paula Dutra Aguiar, Tainá Oliveira Assis, Chris Huntingford, Eddy Robertson, Stephen Sitch, Emanuel Gloor   +9 more
wiley   +1 more source