Results 51 to 60 of about 4,536 (193)

Allometric Constraint Predominates Over the Acoustic Adaptation Hypothesis in a Radiation of Neotropical Treefrogs

Integrative Zoology, Volume 20, Issue 4, Page 763-773, July 2025.
Male frogs emit calls to attract mates and deter conspecific rivals. The evolution of these calls is thought to be linked to anatomical constraints and the acoustic characteristics of their surroundings. We tested these two factors in a radiation of 112 species of Neotropical treefrogs and found that body size and calling site affect peak frequency but
Moisés Escalona, Pedro Ivo Simões, Alejandro Gonzalez‐Voyer, Angela M. Mendoza‐Henao, Andressa De Mello Bezerra, Paulo D. P. Pinheiro, Belén Morales, Juan M. Guayasamin, Thiago Carvalho, Juan C. Chaparro, Ignacio De la Riva, Fernando J. M. Rojas‐Runjaic, Mauricio Rivera‐Correa, Philippe J. R. Kok, Pedro Peloso, Daniel Yudi Miyahara Nakamura, Raúl Maneyro, Santiago Castroviejo‐Fisher   +17 more
wiley   +1 more source

Chaos From Switched-Capacitor Circuits: Discrete Maps [PDF]

, 1987
A special-purpose analog computer made of switched-capacitor circuits is presented for analyzing chaos and bifurcation phenomena in nonlinear discrete dynamical systems modeled by discrete maps *n + t = fan)-Experimental results are given for four ...
Huertas Díaz, José Luis, Pérez Verdú, Belén, Rodríguez Vázquez, Ángel Benito, Rueda Rueda, Adoración   +3 more
core   +1 more source

Rthoptera: Standardised insect bioacoustics in R

Methods in Ecology and Evolution, Volume 16, Issue 6, Page 1084-1094, June 2025.
Abstract Almost 100 years after the dawn of insect bioacoustics, freely available and robust analysis tools and protocols are still needed. We introduce Rthoptera, an open‐source R package designed for robust analysis of insect acoustic signals. It delivers accurate temporal and spectral measurements, along with intuitive visualisations, through a ...
Francisco Rivas, Cesare Brizio, Filippo M. Buzzetti, Bryan Pijanowski   +3 more
wiley   +1 more source

Prospects of measuring the leptonic CP phase with atmospheric neutrinos

, 2009
We have studied the prospects of measuring the CP violating phase with atmospheric neutrinos at a large magnetized iron calorimeter detector considering the muons (directly measurable) of the neutrino events generated by a MonteCarlo event generator ...
Abhijit Samanta, B. Pontecorvo, B. Pontecorvo   +2 more
core   +1 more source

Pump‐Probe Imaging of Ultrafast Laser Percussion Drilling of Glass in Single Pulse, MHz‐ and GHz‐Burst Regimes

Advanced Materials Interfaces, Volume 12, Issue 10, May 19, 2025.
Pump‐probe shadowgraphy of glass drilling is shown with a femtosecond laser operating in MHz‐ and GHz‐burst regime. A comparison with standard femtosecond micro‐processing using repetitive single pulses is provided. The ablation plume lifetime is measured in all three regimes, and the drilling dynamics of Through Glass Via (TGV) in GHz‐burst mode are ...
Pierre Balage, Théo Guilberteau, Manon Lafargue, Guillaume Bonamis, Clemens Hönninger, John Lopez, Inka Manek‐Hönninger   +6 more
wiley   +1 more source

Effect of Spatial and Temporal Urban Isolation on the Genetic Diversity, Acoustic Variation, and Morphological Characteristics of an Urban Survivor Bird Species

Ecology and Evolution, Volume 15, Issue 4, April 2025.
Urbanization fragments habitats and isolates populations, reducing gene flow and driving divergence in genetic, acoustic, and morphological traits. Over ten years, isolated populations of white‐eared ground‐sparrows exhibited increased inbreeding, altered song characteristics, and changes in body and beak size, with significant correlations found ...
Luis Cueva, Eric J. Fuchs, Gilbert Barrantes, Ruth Madrigal‐Brenes, Luis Sandoval   +4 more
wiley   +1 more source

Lightning effects on the NASA F-8 digital-fly-by-wire airplane [PDF]

The effects of lightning on a Digital Fly-By-Wire (DFBW)aircraft control system were investigated. The aircraft was a NASA operated F-8 fitted with a modified Apollo guidance computer.
Fisher, F. A., Plumer, J. A., Walko, L. C.   +2 more
core   +1 more source

Early colonization of New Caledonia by ultrasonic crickets from New Guinea (Orthoptera: Gryllidae: Eneopterinae): Historical biogeography and description of a new genus

Systematic Entomology, Volume 50, Issue 2, Page 269-295, April 2025.
We describe Kanakinthus koniambo, a new genus and species of the subtribe Lebinthina endemic to New Caledonia using ultrasonic calls, and three new species of the genus Agnothecous. We provide a robust dated phylogeny of the subfamily Eneopterinae using eight molecular markers and a comprehensive taxon sampling with a focus on the Western Pacific ...
Thomas Le Flanchec, Karen Salazar, Julien Malem, Juliette Vendanger, Eddy Poirier, Valentin Dutertre, Céline Bonillo, Pascaline Chifflet‐Belle, Frédéric Legendre, Romain Nattier, Tony Robillard   +10 more
wiley   +1 more source

Machine Learning Analysis of Arterial Oscillograms for Depression Level Diagnosis in Cardiovascular Health

Complex Systems Informatics and Modeling Quarterly
The presented study explores the clustering of arterial oscillogram (AO) data among a sample of patients, focusing on ultra-low-frequency (ULF) indicators and their relationship with depression levels.
Vladislav Kaverinsky, Dmytro Vakulenko, Liudmyla Vakulenko, Kyrylo Malakhov   +3 more
doaj   +1 more source

Interface triboelectricity

EcoEnergy, Volume 3, Issue 1, Page 105-130, March 2025.
This review systematically examines the working modes and fundamental mechanisms of liquid–solid triboelectric nanogenerators (TENGs), including the Wang Transition, hybrid EDL model, and tribovoltaic effects. The study provides insights into charge transfer at the liquid–solid interface and highlights broad applications in energy harvesting.
Jing You, Jiajia Shao, Yahua He, Bobo Sun, Khay Wai See, Zhong Lin Wang, Xiaolin Wang   +6 more
wiley   +1 more source