Results 131 to 140 of about 68,632 (306)
Ultrafast Adhesion/Friction Bidirectionally Switchable Control by Vibration
Bioinspired gradient smooth architectures enable vibration‐switchable adhesion/friction with 62.02 kPa adhesion strength, 131.57 kPa shear strength, tilt angles ≥ 3°, roughness ≥ Ra 0.8 µm, 400 Hz antivibration robustness, and dual‐mode control. The synergy of geometry optimization and vibration modulation tuning bridges multidomain adaptability and ...
Jian Chen +10 more
wiley +1 more source
Grasshoppers confirm mild winter [PDF]
If we use grasshoppers as a gauge of winter severity then the winter of 2001-2002 was certainly an insect-friendly winter. I noted in the December 2001 Integrated Crop Management newsletter that a few differential grasshoppers had survived around Ames ...
Rice, Marlin E.
core +2 more sources
RAMUS: Printable, Mechanically‐Tunable and Biodegradable Cellulose‐Mediated Composites
Ramus, a Latin term meaning “branch,” develops large‐scale, ambient conditions additively manufactured, and biodegradable cellulose‐based biomaterial composites able to mediate their structural capacity from micro to macroscale. Abstract Ramus develops large‐scale, ambient conditions additively manufactured, and biodegradable cellulose‐based ...
Laia Mogas‐Soldevila +5 more
wiley +1 more source
Condition dependence of (un)predictability in escape behavior of a grasshopper species [PDF]
Gabe Winter +2 more
openalex +1 more source
Rotary 4D Printing of Programmable Metamaterials on Sustainable 4D Mandrel
The paper introduces open, rotary 4D printing of programmable tubular metamaterials. It presents an open, non‐planar path‐to‐G‐code pipeline and shape‐changing rotary mandrel that enable support‐free fabrication and multi‐stimuli actuation. Experiments and FEA validate the mentioned features and stress redistribution.
Hesam Soleimanzadeh +4 more
wiley +1 more source
Temperature and the evolution of flower color: A review
Abstract Flower colors brighten our natural world. How and why have they evolved? How might ongoing global warming alter their evolutionary trajectories? In this review, I examine the influence of ambient temperature on the evolution of flower color.
Elizabeth P. Lacey
wiley +1 more source
Pollinator, herbivore, and climatic selective pressures differ across a floral color transition zone
Abstract Premise Spatial and temporal variations in climate and ecological interactions may underlie the origin and maintenance of floral color polymorphisms across a species range. Betalains are nitrogen‐containing, phylogenetically restricted pigments that, like the widespread and well‐studied anthocyanins and carotenoids, may attract pollinators ...
Sierra L. Jaeger +5 more
wiley +1 more source
Some parasitic birds may destroy unsuitable host nests through “Farming behavior” to induce re‐nesting, thereby creating new opportunities for parasitism. Despite its potential significance, this behavior has been documented in only a few brood‐parasitic species.
Feiling Pang +3 more
wiley +1 more source
Performance of Agronomic Crop Varieties in Alaska 1978 –2002 [PDF]
There is no such thing as the perfect variety for Alaska. Some varieties are adapted to a wide range of climatic and geographic locations, while others are more specific in their adaptation.
Knight, Charles W. +1 more
core
Leveraging Long‐Term Ecological Research Initiatives Into the One Health Synthesis
We address important ecological and evolutionary considerations for advancing a One Health perspective by drawing attention to faunal and ecosystem changes occurring through the Great Plains of North America that have strong implications for future risk of emerging pathogens including zoonoses.
Andrew G. Hope +2 more
wiley +1 more source

