Results 71 to 80 of about 150,841 (318)

Waveguide Geometry–Driven Trade‐Offs in Resonant Cavity Sensor Performance

Advanced Optical Materials, EarlyView.
Waveguide geometry governs the interplay between sensitivity, intrinsic Q‐factor, and wavelength noise in silicon nitride resonant sensors. Contrary to intuition, higher sensitivity does not ensure superior performance. Low‐noise, high‐Q ridge resonators achieve the lowest detection limits, revealing that detection is ultimately constrained by noise ...
Mohammad Talebi Khoshmehr, Bakiye Imran Akca, Mateusz Słowikowski, Drecka Dagmara, Marcin Juchniewicz, Ryszard Piramidowicz, Muhammad Ali Butt   +6 more
wiley   +1 more source

Estimating predation of the grain aphid Sitobion avenae by polyphagous predators

, 1994
1. The numbers of dead and live aphids falling to the ground in a cereal crop were estimated. The estimates showed that more live aphids fall to the ground than dead ones. 2. The availability of live aphids to predators which forage on the ground was low
Winder, L., Carter, N., Wratten, S. D., Hirst, D. J., Sopp, P. I.   +4 more
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Seletividade de inseticidas a alguns dos inimigos naturais na cultura do algodão

Arquivos do Instituto Biológico
O objetivo foi estudar a seletividade de inseticidas aos inimigos naturais na cultura do algodão (Gossypium hirsutum L.r. latifoliumHurtch), cultivar DeltaOpal, no município de Malhada (BA) e conhecer a fauna benéfica associada.
Elizio Pereira Diamantino, Maria Aparecida Castellani, Luiz Carlos Forti, Aldenise Alves Moreira, Alcebíades Rebouças São José, Juliana Alves de Macedo, Fabiano de Sousa Oliveira, Bruna Santos Silva   +7 more
doaj   +1 more source

Predators and Cranks [PDF]

American Journal of Neuroradiology, 2013
A few years ago I received an e-mail invitation to write a review article on MR spectroscopy from a journal I did not know. Thinking that it was a good project for one of my visiting research fellows, I accepted.
openaire   +2 more sources

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

Efficiency of three indigenous species of coccinellid predators for controlling aphids and whiteflies on cucumbers in greenhouses

Bioscience Journal
Cucumber plants can be infested with many insect pests such as aphids, whiteflies, and thrips, especially in greenhouses, resulting in significant damage to the crops.
Laila A. Al-Shuraym
doaj   +1 more source

SURVEY OF CERTAIN INSECTS INFESTING MAIZE CROP AND BIOLOGICAL ASPECTS OF THE PARASITOID, BRACON BREVICORNIS WESM. (HYMENOPTERA: BRACONIDAE) REARED ON SESAMIA CRETICA LED. UNDER LABORATORY CONDITIONS. [PDF]

Journal of Plant Protection and Pathology, 2012
The present study was conducted during two successive seasons in the period from 2011 to 2012 to survey some aphids species Rhopalosiphum maidis (Fitch)., Rhopalosiphum padi (Linnaeus)., Aphis gossypii (Glover). ,  leafhoppers species Empoasca decipiens (
A. Saleh, A. Abd- Elsamed, Aml Habashy
doaj   +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

Abundance, taxonomic and functional diversity of raptors along aridity gradient and habitat types in Rajasthan, India

Raptor Journal
Birds of prey and their community structure can serve as indicators of ecosystem conditions. In this study, we analysed abundance, taxonomic and functional diversity and their variability across different levels of aridity and habitats.
Choudhary Rounak, Sharma Vivek, Singh Pawan, Shekhawat Ekta, Dutta Subroto, Mathur Praveen, Khan Saba, Sharma Mayank, Meena Aayushi   +8 more
doaj   +1 more source