Results 31 to 40 of about 1,044,993 (304)

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Crystal structures of trans-acetyldicarbonyl(η5-cyclopentadienyl)(1,3,5-triaza-7-phosphaadamantane)molybdenum(II) and trans-acetyldicarbonyl(η5-cyclopentadienyl)(3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane)molybdenum(II)

Acta Crystallographica Section E: Crystallographic Communications, 2020
The title compounds, [Mo(C5H5)(COCH3)(C6H12N3P)(CO)2], (1), and [Mo(C5H5)(COCH3)(C9H16N3O2P)(C6H5)2))(CO)2], (2), have been prepared by phosphine-induced migratory insertion from [Mo(C5H5)(CO)3(CH3)]. The molecular structures of these complexes are quite
Mitchell R. Anstey, John L. Bost, Anna S. Grumman, Nicholas D. Kennedy, Matthew T. Whited   +4 more
doaj   +1 more source

Integrating Citizen Science with Online Biological Collections to Promote Species and Biodiversity Literacy in an Entomology Course

Citizen Science: Theory and Practice, 2021
The integration of citizen science into undergraduate STEM courses improves science practice skills, enables students to contribute to the global collection of species occurrence data, and may increase understanding and appreciation of biodiversity.
Christopher Paradise, Louisa Bartkovich
doaj   +1 more source

Controlling 3D Contractility via Engineered Fibrous Hydrogel Composites

Advanced Functional Materials, EarlyView.
A tunable composite contractile assembly (CCA) is developed that can permit or resist contraction without changing cell‐adhesion and density, unlike collagen whose inherent coupling of these ECM cues limits its use as a platform in contractility studies.
Karen L. Xu, Yuqi Zhang, Alysse DeFoe, Georgios Kotsaris, Brendan Stoeckl, Matthew D. Davidson, Jason A. Burdick, Robert L. Mauck   +7 more
wiley   +1 more source

Incorporating art into a biology course: a student-curated art exhibition about COVID-19

Journal of Microbiology & Biology Education
Incorporating art into science, technology, engineering, and mathematics (STEM) courses can be an effective way to help students understand scientific concepts and think about those concepts more holistically.
David R. Wessner, Lia Rose Newman, Marisa J. Pascucci, Nella Tsudis   +3 more
doaj   +1 more source

A Sea Change in Eta Carinae [PDF]

, 2010
Major stellar-wind emission features in the spectrum of Eta Car have recently decreased by factors of order 2 relative to the continuum. This is unprecedented in the modern observational record. The simplest, but unproven, explanation is a rapid decrease
Corcoran, Damineli, Davidson, Davidson, Davidson, Davidson, Davidson, Davidson, Davidson, Humphreys, Humphreys, Humphreys, Kashi, Maeder, Martin, Martin, Martin, Mehner, Richardson, Smith, Whitelock, Zanella   +21 more
core   +3 more sources

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

Yield, growth, and labor demands of growing maize, beans, and squash in monoculture versus the Three Sisters

Plants, People, Planet
Societal Impact Statement Intercropping techniques like the Three Sisters, where maize, beans, and squash are grown in an intermixed arrangement, have sustained communities in the Americas for thousands of years and continue to be practiced around the ...
Ty Cryan, Olivia Musselman, Aaron W. Baumgardner, Sadie Osborn, Caroline J. Beuscher, Caitlin Stehn, Ariane Burt, Ramsey Chaaban, Alexis Lopez, Giles Lewis, Gabriela Mata, Milo Rothenberg, Ayelen Plascencia‐Marquez, Rani Greer, Rose Stremlau, Halle Murphy, Lia Rose Newman, Annie Merrill, Susana M. Wadgymar   +18 more
doaj   +1 more source

The Application of Metaphor in Philosophical Hermeneutics of Gadamer and Pragmatism of Davidson [PDF]

Journal of Philosophical Investigations
Many theorists have been developing their concepts on metaphor, among which Gadamer and Davidson are two thinkers for whom metaphor plays a key role in their philosophical project—and, interestingly, both disagree with Aristotle’s view which considers ...
Raed Faridzadeh, Sepehr Salimi
doaj   +1 more source

Analytical Hartree-Fock gradients for periodic systems [PDF]

, 2000
We present the theory of analytical Hartree-Fock gradients for periodic systems as implemented in the code CRYSTAL. We demonstrate how derivatives of the integrals can be computed with the McMurchie-Davidson algorithm.
Doll, K., Harrison, N. M., Saunders, V. R.   +2 more
core   +3 more sources