Results 51 to 60 of about 126,264 (260)

Polarization‐Dependence of Nonlinear Optical Effects in Silicon: The Case of Ultrafast Processing

open access: yesAdvanced Physics Research, EarlyView.
The dependence of the input polarization for the nonlinear optical propagation in silicon is investigated theoretically and experimentally. The perturbative regime is examined using pump‐probe shadowgraphy and nonlinear transmission, whereas the case of permanent laser‐induced modifications is addressed using a combination of Raman micro‐spectroscopy ...
Namig Alasgarzade   +6 more
wiley   +1 more source

Characterization and mechanism of action of amphibian-derived wound-healing-promoting peptides

open access: yesFrontiers in Cell and Developmental Biology, 2023
Wound-healing-promoting peptides are excellent candidates for developing wound-healing agents due to their small size and low production cost. Amphibians are one of the major sources of bioactive peptides, including wound-healing-promoting peptides.
Xiakun Wang   +4 more
doaj   +1 more source

frog: v0.13.0

open access: yes, 2016
Frog is an integration of memory-based natural language processing (NLP) modules developed for Dutch.
Ko van der Sloot, Maarten van Gompel
core   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

Efeito do etanol e do peróxido de hidrogênio intragástrico sobre a mucosa gástrica de rã (Rana catesbeiana, SHAW) Effect of intragastric ethanol and hydrogen peroxide in frog gastric mucosa (Rana catesbeiana, SHAW)

open access: yesBrazilian Archives of Biology and Technology, 1998
This work investigated the frog gastric mucosa response to hydrogen peroxide and ethanol induced injury. Acid and mucus secretion were estimated "in vitro" in control animals with intragastric absolute ethanol (1ml/30min.
Hidê Virgínia Estivallet   +2 more
doaj   +1 more source

Anuran accents: Continental‐scale citizen science data reveal spatial and temporal patterns of call variability

open access: yesEcology and Evolution, 2020
Many animals rely on vocal communication for mating advertisement, territorial displays, and warning calls. Advertisement calls are species‐specific, serve as a premating isolation mechanism, and reinforce species boundaries.
Savannah J. Weaver   +2 more
doaj   +1 more source

A new golden frog species of the genus Diasporus (Amphibia, Eleutherodactylidae) from the Cordillera Central, western Panama [PDF]

open access: yes, 2012
We describe the frog species Diasporus citrinobapheussp. n. from the Cordillera Central of western Panama. The new species differs from all other species in its genus in coloration, disk cover and disk pad shape, skin texture, advertisement call, and ...
Köhler, Gunther   +13 more
core   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

[News Clip: Frog club]

open access: yes, 1958
Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a news story about the Texas Christian University Frog Club celebrating a victory over Rice ...
WBAP-TV (Television station : Fort Worth, Tex.)
core   +1 more source

Rhyme in dróttkvætt, from Old Germanic Inheritance to Contemporary Poetic Ecology III: The Old Norse Poetic Ecology

open access: yesStudia Metrica et Poetica
This paper is the third in a three-part series that develops a model for the background of rhyme in Old Norse dróttkvætt poetry as a formalization of the same form of rhyme found across Old Germanic poetries.
Frog
doaj   +1 more source

Home - About - Disclaimer - Privacy