Results 91 to 100 of about 190,264 (315)

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Linking community structure and climate vulnerability in desert plant assemblages of southern California

American Journal of Botany, EarlyView.
Abstract Premise Desert plant assemblages in southern California provide an opportunity to link patterns of community structure with climate‐driven vulnerability in a rapidly changing environment. California sustains an exceptionally diverse flora of approximately 4300 plant species, with 31% identified as endemic.
Hector Zumbado‐Ulate, Luis E. Barrios, Danelle A. Baronia, G. Darrel Jenerette, Lynn C. Sweet   +4 more
wiley   +1 more source

Geological map of Brazil - 2025 (scale 1:5,000,000): Methodology and main geological compartments

Journal of the Geological Survey of Brazil
The Geological Map of Brazil at the 1:5,000,000 scale was recently updated by the Geological Survey of Brazil (SGB-CPRM), in view of the availability of several geological maps and datasets released after the previous version, published in 2001. In this
Vladimir Medeiros, Frank Santos , Marcos Quadros, Elias Espírito Santo , Marcio Silva, Gustavo Moreira, Tiago Barros   +6 more
doaj   +1 more source

The Price of the “Memoirs of the Geological Survey” [PDF]

Nature, 1879
THE publication of Mr. Skertchley's “Manufacture of Gun Flints,” in the Memoirs of the Geological Survey, seems to be a good opportunity for again bringing under notice the absurd price charged for some of the Survey volumes. In NATURE, vol. xviii. p. 562, Prof.
openaire   +2 more sources

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

American Journal of Botany, EarlyView.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian, Emily B. Sessa, Richard S. Barclay, Regan E. Dunn, Jacquelyn L. Gill, Kirk R. Johnson, S. Augusta Maccracken, Ian M. Miller, Jarmila Pittermann, Ellen D. Currano   +9 more
wiley   +1 more source

Geological Survey of Victoria. No. 6 : N.W., Part of Rochford [cartographic material] / [PDF]

Geological map of the town of Macedon on the top left of the map, with the town of Riddell on the far right and the town of Gisborne at the centre bottom with cadastral details such as many numbered land allotments between these three towns.
Geological Survey of Victoria.
core  

Geological Survey of Victoria. No. 67 [cartographic material] [PDF]

, 1892
Quarter sheet 67NW is a geological map centering on the entrance between the heads of Western Port Bay. The western headland shows the town of Newhaven on Phillip Island.
Geological Survey of Victoria.
core  

Using photovoice to understand community perceptions of firearm risks and protective factors among Asian Americans

American Journal of Community Psychology, EarlyView.
Abstract This study used photovoice methodology to explore Asian Americans' perspectives on the root causes and protective factors of firearm violence in their communities. Photovoice provided a participatory platform for community members to document lived experiences and identify priorities for change.
Tsu‐Yin Wu, Szu‐Hsien Chen, Xining Yang, Ken Resnicow, Hsing‐Fang Hsieh   +4 more
wiley   +1 more source

Geological Survey of Victoria. No. 15 [cartographic material] [PDF]

Quarter sheet 15SE is a geological map includes the town of Franklinford at lower left of map centre in the parish of Franklin with some cadastral detail.
Geological Survey of Victoria.
core