Results 111 to 120 of about 935,910 (334)

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

open access: yesAdvanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li   +8 more
wiley   +1 more source

Dynamics and numerical simulations of a generalized mosquito-borne epidemic model using the Ornstein-Uhlenbeck process: Stability, stationary distribution, and probability density function

open access: yesElectronic Research Archive
In this paper, we proposed a generalized mosquito-borne epidemic model with a general nonlinear incidence rate, which was studied from both deterministic and stochastic insights.
Wenhui Niu, Xinhong Zhang, Daqing Jiang
doaj   +1 more source

Harnessing Non‐Covalent Protein–Protein Interaction Domains for Production of Biocatalytic Materials Systems

open access: yesAdvanced Functional Materials, EarlyView.
Non‐covalent protein–protein interactions mediated by SH3, PDZ, or GBD domains enable the self‐assembly of stable and biocatalytically active hydrogel materials. These soft materials can be processed into monodisperse foams that, once dried, exhibit enhanced mechanical stability and activity and are easily integrated into microstructured flow ...
Julian S. Hertel   +5 more
wiley   +1 more source

Numerical model of aerodispersed medium containing ice and soot particles for investigation radiant energy extinction

open access: yesИзвестия Томского политехнического университета: Промышленная кибернетика
A physical-mathematical model of crystal cloud containing ice crystals and soot particles is presented. The numerical model is designed to calculate the extinction factor of visible and IR radiation.
Olga V. Shefer, Viktor A. Sennikov
doaj   +1 more source

Patterns of Speciation and Extinction and the Divine Valuing of Creation [PDF]

open access: yes, 2012
The near-universal concern over the current rate of species extinction must be contextualized, given the occurrence ofprevious mass extinctions during the course of Earth\'s natural history.
Bouma, Rolf
core   +1 more source

Extinction dynamics from meta-stable coexistences in an evolutionary game

open access: yes, 2017
Deterministic evolutionary game dynamics can lead to stable coexistences of different types. Stochasticity, however, drives the loss of such coexistences. This extinction is usually accompanied by population size fluctuations.
Park, Hye Jin, Traulsen, Arne
core   +1 more source

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

open access: yesAdvanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna   +10 more
wiley   +1 more source

Conservation of fishes in the Elands River, Mpumalanga, South Africa: Past, present and future

open access: yesKoedoe: African Protected Area Conservation and Science, 2014
In an isolated reach, between two large natural waterfalls in the Elands River in Mpumalanga, populations of a critically endangered Kneria sp., the endangered Chiloglanis bifurcus and a genetically unique population of Labeobarbus polylepis occur.
Gordon C. O’Brien   +2 more
doaj   +1 more source

The Realization of Multidirectional, Free‐Standing 3D Plasmonic Nanostructures via 3D Nanoprinting: A Case Study of Fractal Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker   +6 more
wiley   +1 more source

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