Results 81 to 90 of about 14,395 (284)

An efficient improved African vultures optimization algorithm with dimension learning hunting for traveling salesman and large-scale optimization applications

, 2022
Exploring the finest shortest-path traveling salesman optimization application is a typical NP-hard problem. Similarly the solution of the large-scale optimization applications is also a big challenging issue in front of scientists.
Mirjalili, S, Singh, N, Selvachandran, G, Houssein, EH, Cao, Y   +4 more
core   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

Advanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

WEST NILE VIRUS IN VULTURES FROM EUROPE – A SIGHT AMONG OTHER RAPTORS

Slovenian Veterinary Research
The West Nile virus (WNV) is an arbovirus mainly transmitted by Culex spp. and the causative agent of a zoonotic disease that is present worldwide. This pathogen is endemically maintained in a life cycle with birds acting as reservoirs, and humans and ...
Filipa Loureiro, Luís Cardoso, Ana Matos, Manuela Matos, Ana Cláudia Coelho   +4 more
doaj   +1 more source

Mitogenomic analysis of extant condor species provides insight into the molecular evolution of vultures

Scientific Reports, 2021
The evolution of large vultures linked to mountainous habitats was accompanied by extreme physiological and behavioral specializations for energetically efficient flights.
D. D. De Panis, Sergio A. Lambertucci, G. Wiemeyer, H. Dopazo, F. Almeida, C. Mazzoni, M. Gut, I. Gut, J. Padró   +8 more
semanticscholar   +1 more source

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

Advanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker, Jelle de Vries, Johannes T. B. overvelde   +2 more
wiley   +1 more source

Assessing African Vultures as Biomonitors and Umbrella Species

Frontiers in Conservation Science, 2021
African vulture populations are rapidly declining, yet funding and other resources available for their conservation are limited. Improving our understanding of which African vulture species could best serve as an umbrella species for the entire suite of ...
L. Thompson, Sonja C. Krüger, Brent Coverdale, L. J. Shaffer, M. Ottinger, John P. Davies, Clément Daboné, M. Kibuule, S. Cherkaoui, Rebecca Garbett, W. L. Phipps, E. Buechley, Alfonso Godino Ruiz, Miguel Lecoq, Camilo Carneiro, R. Harrell, Meredith L. Gore, W. Bowerman   +17 more
semanticscholar   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

Underground Signals: The Ecological Power of Root Volatiles

Advanced Science, EarlyView.
Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao, Nanli Song, François Verheggen, Meritxell Pérez‐Hedo, Andrea Clavijo McCormick, Antonino Cusumano, Arthur de Fouchier, Bing Wang, Chen‐Zhu Wang, Emmanuelle Jacquin‐Joly, Gary W. Felton, Geoff M. Gurr, Hao Guo, Jiancai Li, Jin Zhang, Li Chen, Manqun Wang, Michele Ricupero, Peng Han, Peng He, Qi Yan, Qingbo Tang, Qingsong Liu, Shiheng An, Xiangbo Kong, Xiaoling Sun, Xueming Ren, Yuanyuan Song, Yang Liu, Yanhui Guo, Yunhe Li, Xiao Sun   +31 more
wiley   +1 more source

Neuropeptide Y—Graphene Oxide Complexes Inhibit Amygdala NPY‐Receptor Expressing Glutamatergic Pathways and Selectively Remove Aversive Memory In Vivo

Advanced Science, EarlyView.
A graphene oxide nanocarrier presents neuropeptide Y specifically to NPY receptor‐expressing pathways in the amygdala, whose activation selectively suppresses aversive memory formation, without modulating anxiety responses. This circuit‐restricted drug release strategy may impact future design of neuropsychiatric therapies with limited off‐target ...
Elisa Pati, Audrey Franceschi Biagioni, Raffaele Casani, Luis M. Arellano, Tommaso Battisti, Gloria Garcia‐Ortega, Neus Lozano, Alberto Bianco, Kostas Kostarelos, Laura Ballerini, Giada Cellot   +10 more
wiley   +1 more source

Geographic distribution and supply chain of vultures in Benin, West Africa

Conservation Science and Practice
Illegal trade poses a significant threat to African vultures, particularly in Benin, which stands as the second major hotspot for vultures' trade in West Africa.
Samson Dognimon, Stanislas Zanvo, Chabi A. M. S. Djagoun, Brice Sinsin   +3 more
doaj   +1 more source