Results 31 to 40 of about 76,233 (199)

A new family of diverse skin peptides from the microhylid frog genus phrynomantis [PDF]

open access: yes, 2020
A wide range of frogs produce skin poisons composed of bioactive peptides for defence against pathogens, parasites and predators. While several frog families have been thoroughly screened for skin-secreted peptides, others, like the Microhylidae, have ...
Ballet, Steven   +7 more
core   +1 more source

Ecology of the Squirrel Treefrog (Hyla squirella) in Southern Arkansas [PDF]

open access: yes, 2014
We conducted an ecological study of the Squirrel Treefrog, Hyla squirella near El Dorado, Union Co., Arkansas from May-Oct. 2013. We extended the known distribution by ~2 km and documented the first breeding occurring on 28 May and the first ...
Bursey, C. R.   +4 more
core   +3 more sources

Stability of microbiota facilitated by host immune regulation: informing probiotic strategies to manage amphibian disease. [PDF]

open access: yesPLoS ONE, 2014
Microbial communities can augment host immune responses and probiotic therapies are under development to prevent or treat diseases of humans, crops, livestock, and wildlife including an emerging fungal disease of amphibians, chytridiomycosis.
Denise Küng   +5 more
doaj   +1 more source

Common pulse retrieval algorithm: a fast and universal method to retrieve ultrashort pulses

open access: yes, 2018
We present a common pulse retrieval algorithm (COPRA) that can be used for a broad category of ultrashort laser pulse measurement schemes including frequency-resolved optical gating (FROG), interferometric FROG, dispersion scan, time domain ptychography,
Eilenberger, Falk   +3 more
core   +1 more source

Ecuadorian Glass Frogs: Current state of knowledge, new research trends and conservation [PDF]

open access: yes, 2016
Ecuador has the biggest number of amphibian species per unit of area in the world (427 species in 276,840 km2). Glass frogs (Centrolenidae), with 30 species, constitute 7.06 % of the Ecuadorian anurans. However, the current state of knowledge of this family in Ecuador is still very basic.
Cisneros-Heredia, Diego F   +1 more
openaire   +1 more source

Phylogenetic position of “Cochranella” megista (Anura: Centrolenidae) and first records for Ecuador

open access: yesPhyllomedusa: Journal of Herpetology, 2021
“Cochranella” megista is an Endangered and rarely encountered species of glass frog that, until now, had been only registered in the Colombian Andes. Here we report this species for the first time in Ecuador, expanding its known distribution ca.
Scott J. Trageser   +5 more
doaj  

Self-referenced characterization of space-time couplings in near single-cycle laser pulses [PDF]

open access: yes, 2016
We report on the characterization of space-time couplings in high energy sub-2-cycle 770nm laser pulses using a self-referencing single-shot method. Using spatially-encoded arrangement filter-based spectral phase interferometry for direct electric field ...
Austin, D. R.   +7 more
core   +2 more sources

ZnO Nanostructure-Based Intracellular Sensor

open access: yesSensors, 2015
Recently ZnO has attracted much interest because of its usefulness for intracellular measurements of biochemical species by using its semiconducting, electrochemical, catalytic properties and for being biosafe and biocompatible. ZnO thus has a wide range
Muhammad H. Asif   +2 more
doaj   +1 more source

Phase retrieval via regularization in self-diffraction based spectral interferometry

open access: yes, 2014
A novel variant of spectral phase interferometry for direct electric-field reconstruction (SPIDER) is introduced and experimentally demonstrated. Other than most previously demonstrated variants of SPIDER, our method is based on a third-order nonlinear ...
Birkholz, Simon   +5 more
core   +1 more source

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

open access: yesAdvanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani   +6 more
wiley   +1 more source

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