Results 101 to 110 of about 201,535 (285)

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

Advanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim, Chanui Lee, Keunhong Jeong, Seonggi Kim, Hyunju Shin, Sunghan Kim, Youngho Jin   +6 more
wiley   +1 more source

Coexistence for species sharing a predator

Journal of Differential Equations, 2004
A class of equations describing the dynamics of two preys sharing a common predator is considered. Even though the boundary and internal dynamics can exhibit oscillatory behavior, it is shown that these equations are permanent if and only if they admit a positive equilibrium.
openaire   +1 more source

The demography of invasion: Tephritids of La Reunion, a unique model to study invasion and competition [PDF]

, 2008
Despite quarantine procedures, many invasions of polyphagous fruit flies (family Tephritidae) have been observed in various parts of the world. These invasions usually result in decreased numbers of, and niche shifts by, established species, be they ...
Duyck, Pierre François, Quilici, Serge
core  

Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals

Advanced Functional Materials, EarlyView.
Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser, Ana M. Valencia, Sergei I. Ivlev, Marc Zeplichal, Andreas Terfort, Caterina Cocchi, Gregor Witte   +6 more
wiley   +1 more source

Species coexistence of marine nematodes [PDF]

, 2021
Σύμφωνα με την κλασική οικολογική θεωρία της συνύπαρξης των ειδών, δύο λειτουργικά παρόμοια είδη δεν μπορούν να συνυπάρχουν λόγω του έντονου ανταγωνισμού∙ το ένα θα αποκλείσει το άλλο. Η διαφοροποίηση οικοθέσης είναι ο κύριος παράγοντας που ευννοεί τη συνύπαρξη των ειδών, καθώς τα ανταγωνιστικά είδη με παρόμοιες οικολογικές λειτουργίες μπορούν να ...
openaire   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

Advanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi, Senwei Zeng, Runfa Zhao, Guangfu Wu, Zhi Liu, Tianhang Zhou, Chunming Xu, Jia Guo, Quan Xu, Yingchun Niu   +9 more
wiley   +1 more source

Tailoring K+/Vacancy Disordered Layered Oxide via Charge Engineering for Stabilizing High‐Performance Potassium‐Ion Batteries

Advanced Functional Materials, EarlyView.
With a charge‐ion coupling engineering strategy, a K+/vacancy disordered K0.5Mn0.8Co0.1Ti0.1O2 material has been designed. The targeted transition metal doping disrupts charge ordering and inducing K+/vacancy disordering, thereby enabling rapid K+ diffusion through interconnected channels and a stable solid‐solution reaction mechanism.
Yongfeng Jia, Xuanpeng Wang, Jiashen Meng, Lujun Zhu, Fanjie Xia, Hong Wang, Fang Liu, Xiao Zhang, Quanquan Pang, Jian Wang, Zhitong Xiao   +10 more
wiley   +1 more source

Temporal, Spatial and Prey Niche Partitioning Reveals Coexistence Mechanism of Mesocarnivores in Guangdong Province, South China

Ecology and Evolution
Mesocarnivores are expected to maintain ecosystem function and stability as emerging apex predators after the decline and extinction of large carnivores.
Fei Wu, Yan Hua, Hongliang Dou, Yulin Zhang, Xiaoxin Dong, Di Zhu, Haiyang Gao   +6 more
doaj   +1 more source

LL‐37 Driven Phase Transition and Stacking in Oligolamellar Gram‐Negative Bacterial Membrane Models

Advanced Functional Materials, EarlyView.
This work establishes oligolamellar bacterial membrane models to investigate how LL‐37 disrupts the complex dual‐bilayer architecture of Gram‐negative bacteria. Combining SAXS, cryo‐TEM, electrophoretic mobility measurements, and coarse‐grained simulations, it reveals cardiolipin‐driven phase transitions leading to bicelle‐like structures and membrane ...
Bettina Tran, Diane C.A. Lima, Linda Sandblad, Madeleine Ramstedt, Thereza A. Soares, Stefan Salentinig   +5 more
wiley   +1 more source

Species coexistence patterns in a mycophagous insect community inhabiting the wood-decaying bracket fungus Cryptoporus volvatus (Polyporaceae: Basidiomycota)

European Journal of Entomology, 2010
A study of the insect community inhabiting the wood-decaying bracket fungus, Cryptoporus volvatus was used to test two hypotheses proposed to account for the competitive coexistence of species in insect communities in patchy environments, niche ...
Kohmei KADOWAKI
doaj   +1 more source