Results 71 to 80 of about 3,161,795 (320)
Sex‐dependent effects of endocannabinoid modulation of conditioned fear extinction in rats
British Journal of Pharmacology, 2020 Women are twice as likely as men to develop post‐traumatic stress disorder (PTSD) making the search for biological mechanisms underlying these gender disparities especially crucial.
M. Morena +5 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe +7 more
wiley +1 more source
Stochastic effects on biodiversity in cyclic coevolutionary dynamics [PDF]
, 2006 Finite-size fluctuations arising in the dynamics of competing populations may have dramatic influence on their fate. As an example, in this article, we investigate a model of three species which dominate each other in a cyclic manner.
Banach Center Publications +3 more
core +1 more source
Journal of Physical Chemistry B, 2006 The selection of nanoparticles for achieving efficient contrast for biological and cell imaging applications, as well as for photothermal therapeutic applications, is based on the optical properties of the nanoparticles.
P. Jain +3 more
semanticscholar +1 more source
Vivid Structural Coloration in Transparent MXene‐Cellulose Nanocrystals Composite Films
Advanced Functional Materials, EarlyView.Vivid structural coloration in reflectance and high transparency in transmittance modes are observed in biopolymer‐layered composite films. The ultrathin multilayered structures have unique optical appearance, near‐infrared bandgap, and strong optical reflection caused by alternating MXene and cellulose nanocrystals layers with high refractive index ...
Botyo Dimitrov +12 more
wiley +1 more source
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance The biological interchange between North and South America associated with the formation of the Isthmus of Panama is key to defining current gradients of species diversity. A major gap in our understanding of the interchange is its asymmetry,
J. D. Carrillo +6 more
semanticscholar +1 more source
ANALYSIS OF ANTHROPOGENICALLY INDUCED CHANGES IN ECOSYSTEM COMPONENTS IN THE KATUN RECREATIONAL AREA OF THE ALTAI REPUBLIC, RUSSIAN FEDERATION [PDF]
Geo Journal of Tourism and Geosites, 2019 The aim of the research is a comprehensive evaluation of the character of the impact of recreational activity and tourism on the biological communities of the Republic of Altai.
Peter Yu. MALKOV +4 more
doaj +1 more source
Dynamics of a Gilpin-Ayala predator-prey system with state feedback weighted harvest strategy
AIMS Mathematics, 2023 The current research presents a predator-prey model that incorporates both a Gilpin-Ayala growth function and a Holling type Ⅲ functional response.
Xiaohuan Yu , Mingzhan Huang
doaj +1 more source
Near‐Infrared Circularly Polarized Electroluminescence with Switchable Handedness in Organic LEDs
Advanced Functional Materials, EarlyView.The first fully‐organic circularly polarized near‐infrared OLED, using a co‐assembled active layer of ITIC and a chiral inducer, exhibits dissymmetry values up to 0.074 and 1.65 Wsr−1m−2 radiance. The circular polarization sign can be switched by manipulating the position of the recombination zone, resulting in enhanced device performance and stability.
Francesco Zinna +4 more
wiley +1 more source
Discrete Dynamics in Nature and Society, 2012 The dynamics of an impulsively controlled three-species food chain system with the Beddington-DeAngelis functional response are investigated using the Floquet theory and a comparison method.
Younghae Do, Hunki Baek, Dongseok Kim
doaj +1 more source