Results 81 to 90 of about 338,002 (304)

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

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

Does a Change from Whole to Powdered Food (Artemia franciscana eggs) Increase Oviposition in the Ladybird Coleomegilla maculata?

Insects, 2015
The limited availability of alternative foods to replace natural prey hinders cost-effective mass production of ladybird beetles for augmentative biological control. We compared the effects of powdered vs. whole Artemia franciscana (A.
Eric W. Riddick, Zhixin Wu
doaj   +1 more source

Switching model with two habitats and a predator involving group defence

, 1998
Switching model with one predator and two prey species is considered. The prey species have the ability of group defence. Therefore, the predator will be attracted towards that habitat where prey are less in number.
Anderson G.D., Bertram B.C.R., Braun H.M.H., Freedman H.I., Freedman H.I., Freedman H.I., Grzimek B., Holmes J.C., Kreulen D.K., Lawton J.H., Maddock L., Marsdem J.E., May R.M., McNaughton S.J., Murdoch W.W., Pennywick L., Prajneshu, Roughgarden J., Schaller G.B., Shigui Ruan, Takahashi F., Talbot L.M., Van Orsdol K.G., Yang R.D.   +23 more
core   +3 more sources

Consequences of temperature and temperature variability on swimming activity, group structure, and predation of endangered delta smelt [PDF]

, 2019
The effects of water temperature on individual and group movement behaviour in prey fish can affect ecological interactions such as competition and predation, but how variability in temperature influence fish behaviour is less understood.
Baxter, RD, Cocherell, DE, Davis, BE, Fangue, NA, Hansen, MJ, Nguyen, TX, Sommer, T, Todgham, AE   +7 more
core   +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

Development and survival of nymphs of Podisus nigrispinus (Heteroptera: Pentatomidae) fed with caterpillars of Chlosyne lacinia saundersii (Lepidoptera: Nymphalidae)

Brazilian Archives of Biology and Technology, 2009
The development and survival of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) nymphs fed on larvae of Chlosyne lacinia saundersii Doubleday & Hewitson (Lepidoptera: Nymphalidae) was studied at 25 ± 1ºC, 68 ± 10% relative humidity and 12 h ...
Carlos Alberto Domingues da Silva, Teresinha Vinha Zanuncio, Bruno Gomes Cunha, Ancidériton Antonio de Castro, Glauco da Cruz Canevari, José Eduardo Serrão, José Cola Zanuncio   +6 more
doaj   +1 more source

On the Origins of Toughness in Corymbia calophylla (Marri Tree) Nuts

Advanced Science, EarlyView.
We uncover the natural toughening mechanisms of the marri nut, including fiber pullout, crack deflection, and a viscoelastic matrix, which enable exceptional energy absorption and ductility comparable to Teflon, with an elastic modulus similar to acrylic.
Wegood M. Awad, Ahmed S. Dalaq, Marieh B. Al‐Handawi, Rezo Getsadze, Oraib Al‐Ketan, James Weston, Mohammed Daqaq, Panče Naumov   +7 more
wiley   +1 more source

Leopard density and determinants of space use in a farming landscape in South Africa

Scientific Reports
Protected areas are traditionally the foundation of conservation strategy, but land not formally protected is of particular importance for the conservation of large carnivores because of their typically wide-ranging nature.
McKaughan J.E.T., Stephens P.A., Lucas C., Guichard-Kruger N., Guichard-Kruger F., Hill R.A.   +5 more
doaj   +1 more source

Alternating High‐Fat and Polysaccharide Diets Modulates Gut Phage‐Bacterial Interplay

Advanced Science, EarlyView.
This study reveals how alternating high‐fat and polysaccharide diets reshape the human gut virome and enhance phage‐bacteria interactions. Using large‐scale metagenomic meta‐analysis and a time‐resolved mouse model, the authors show that diets strongly modulate phage abundance, lifestyle, and gene exchange, offering new insights into nutrition‐guided ...
Fengxiang Zhao, Ruiqi Zhang, Rujun Wei, Huimin Fan, Yongfei Hu, Wenyu Shi, Jinfeng Wang   +6 more
wiley   +1 more source