Results 91 to 100 of about 76,233 (199)
Field notes on findings of threatened amphibian species in the central mountain range of western Panama [PDF]
, 2012 During field work along a transect in the Cordillera Central of western Panama between 2008 and 2010, we detected several populations of amphibian species which are considered as “Endangered” or “Critically Endangered” by the IUCN.
Carrizo, Arcadio +5 more
core
Against erasure: Restoring Dr Florence Buchanan's missing image in physiology
Experimental Physiology, EarlyView.
Damian M. Bailey
wiley +1 more source
Fully Connected Neural Networkfor the Classification of Calls from Two Species of Glass Frogs
Revista Ciencia y TecnologíaThis document presents the application of machine learning (ML) for the classification of calls from glass frog species, Hyalinobatrachium fleischmanni (Hf) and Espadarana prosoblepon (Ep) based on audio recordings. For this, a dataset of acoustic data obtained through frequency manipulation (+4 semitones for Hf and -4 semitones for Ep) and the ...
Byron Jiménez Oviedo +3 more
openaire +1 more source
UREA/ammonium ion removal system for the orbiting frog otolith experiment [PDF]
The feasibility of using free urease enzyme and ANGC-101 ion exchange resin to remove urea and ammonium ion for space system waste water applications was studied.
Anselmi, R. T., Schulz, J. R.
core +1 more source
Fish and amphibians as test organisms for evaluation of effects caused by chemicals [PDF]
, 2007 A large number of chemicals can contaminate aquatic environments and therefore be exposed to fish and amphibians during their sensitive stages of development.
Carlsson, Gunnar
core
EcosphereEmerging infectious diseases can cause rapid, widespread host mortality, and the lack of demographic data before and after pathogen emergence complicates understanding mechanisms of host persistence.
Graziella V. DiRenzo +4 more
doaj +1 more source
, 2009 We present a new technique to synthesize high-power single-cycle pulses in the visible and ultraviolet ranges by coherent superposition of a multiband octave-spanning spectrum obtained by highly-nondegenerate cascaded four-wave mixing of femtosecond ...
H. Crespo +3 more
core +1 more source
Biodiversity in a forest island: reptiles and amphibians of the West African Togo Hills [PDF]
, 2006 Our recent surveys of the herpetological diversity of the West African Togo Hills documented a total of 65 reptile and amphibian species, making Kyabobo National Park one of the most diverse sites surveyed in Ghana.
Diaz, Raul E. +5 more
core
Advanced phase retrieval for dispersion scan: a comparative study
, 2017 Dispersion scan is a self-referenced measurement technique for ultrashort pulses. Similar to frequency-resolved optical gating, the dispersion scan technique records the dependence of nonlinearly generated spectra as a function of a parameter.
Escoto, Esmerando +3 more
core +1 more source
Localization of Na pumps in the tracheal epithelium of the dog. [PDF]
, 1979 Binding of [3H]ouabain by the dog's tracheal epithelium shows a nonspecific component depending linearly on ouabain concentration, and a specific saturable component with a Km of 10(-7) M.
Basbaum, CB, Widdicombe, JH, Yee, JY
core