Results 101 to 110 of about 891,129 (276)

Extinction curve template for intrinsically reddened quasars

open access: yes, 2015
We analyze the near-infrared to UV data of 16 quasars with redshifts ranging from 0.71 $
Fynbo, Johan P. U.   +8 more
core   +1 more source

Microfluidic Platform for Multiparametric Profiling of Fibrin Permeability, Fibrinolysis, and Cell Invasion

open access: yesAdvanced Functional Materials, EarlyView.
This paper introduces a single‐channel H‐junction microfluidic assay that profiles fibrin's evolving function in repair and thrombosis by measuring, in one ∼3 µL gel, permeability, fibrinolysis kinetics, fibroblast invasion, and clot extension in real time.
Halston Deal   +9 more
wiley   +1 more source

Correlational patterns of neuronal activation and epigenetic marks in the basolateral amygdala and piriform cortex following olfactory threat conditioning and extinction in rats

open access: yesFrontiers in Molecular Neuroscience
IntroductionCumulative evidence suggests that sensory cortices interact with the basolateral amygdala (BLA) defense circuitry to mediate threat conditioning, memory retrieval, and extinction learning.
Tian Qin   +4 more
doaj   +1 more source

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

open access: yesAdvanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya   +22 more
wiley   +1 more source

Behavioral and neural bases of extinction learning in Hermissenda

open access: yesFrontiers in Behavioral Neuroscience, 2014
Extinction of classical conditioning is thought to produce new learning that masks or interferes with the original memory. However, research in the nudibranch Hermissenda crassicornis (H.c.) has challenged this view, and instead suggested that extinction
Joel S. Cavallo   +2 more
doaj   +1 more source

Decline in extinction rates and scale invariance in the fossil record

open access: yes, 1998
We show that the decline in the extinction rate during the Phanerozoic can be accurately parameterized by a logarithmic fit to the cumulative total extinction. This implies that extinction intensity is falling off approximately as the reciprocal of time.
Eble, Gunther J., Newman, M. E. J.
core   +2 more sources

UV Extinction Towards a Quiescent Molecular Cloud in the SMC

open access: yes, 2012
Context: The mean UV extinction law for the Small Magellanic Cloud (SMC) is usually taken as a template for low-metallicity galaxies. However, its current derivation is based on only five stars, thus placing doubts on its universality. An increase in the
Arias   +25 more
core   +1 more source

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

open access: yesAdvanced 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   +10 more
wiley   +1 more source

Loren Eiseley’s anticipation of the Anthropocene era in his writings on humanity and animality

open access: yesMiranda: Revue Pluridisciplinaire du Monde Anglophone, 2016
A scientist who writes critiques of his contemporaries’ scientific practices, Loren Eiseley challenges the views of science, nature, and man that were current at the time he wrote.
QianQian Cheng
doaj  

The effect of diffusion on giant pandas that live in complex patchy environments

open access: yesNonlinear Analysis, 2015
The habitat loss and fragmentation is almost the greatest threat to the survival of the wild giant panda. In this paper, we construct a mathematical model to consider the effect of diffusion on giant pandas that live in complex patchy environments.
Xiangyun Shi, Guohua Song, Zeyu Li
doaj   +1 more source

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