Results 31 to 40 of about 446,677 (95)

Functional morphology and biomechanics of the locomotor apparatus in the large Late Triassic carnivore Postosuchus kirkpatricki (Archosauria: Rauisuchidae)

open access: yesJournal of Anatomy, EarlyView.
A three‐dimensional model is used to analyze the locomotor biomechanics of the large Late Triassic archosaurian reptile Postosuchus kirkpatricki. The study finds that it is more uncertain than previously concluded whether it was quadrupedal or bipedal, and plantigrade or digitigrade, but it clearly had locomotor specializations including large hindlimb
John R. Hutchinson   +6 more
wiley   +1 more source

Threat level and sound production mode modulate acoustic warnings and defensive biting in snakes

open access: yesFunctional Ecology, Volume 40, Issue 11, Page 3448-3459, November 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Accurately assessing predation risk is important because it enables prey to match their defensive behaviours to the level of threat and avoid unnecessary investment in costly responses.
Nicolas Van Zele   +8 more
wiley   +1 more source

Octagonal Schoolhouse

open access: yes, 1952
This negative shows the front and side exteriors of the Octagonal Schoolhouse (Eight-Square Schoolhouse) at Cowgills ...
Department of State, Delaware Public Archives
core   +2 more sources

Self-pulsing dynamics in a cavity soliton laser [PDF]

open access: yes, 2010
The dynamics of a broad-area vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback supporting bistable spatial solitons is analyzed experimentally and theoretically. The transient dynamics of a switch-on of a soliton induced by
Oppo, G. -L.   +4 more
core   +3 more sources

A Level Set Method on Particle Flow Maps

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 20, 30 October 2026.
ABSTRACT Accurate interface tracking is central to numerical simulations involving moving boundaries, including multiphase flows, free‐surface dynamics, phase‐change problems, and other interface‐driven processes in computational mechanics. Although, level set methods provide a flexible implicit representation of evolving interfaces, their grid‐based ...
Jinjin He   +5 more
wiley   +1 more source

Geometric optimisation of volumetric solar receivers: a study of polygonal cavity configurations

open access: yesResults in Engineering
Volumetric solar receivers integrated with reticulated porous ceramics (RPCs) are a key component in high-temperature concentrated solar power (CSP) systems, enabling efficient radiative absorption and convective heat transfer.
Abdullah Ayed Alrwili   +7 more
doaj   +1 more source

Micro/Nanoscale Acoustic Manipulation: From Particle Control to Autonomous Microswimmers

open access: yesAdvanced Science, Volume 13, Issue 55, 5 October 2026.
This conceptual framework illustrates acoustic technology as a multifunctional platform enabling passive particle manipulation across scales and autonomous propulsion of microswimmers. ABSTRACT Acoustic manipulation and propulsion technologies have emerged as powerful platforms for micro/nanoscale control, enabled by their non‐contact operation, label ...
Jiahui Chu   +4 more
wiley   +1 more source

Interpretability and Representability of Commutative Algebra, Algebraic Topology, and Topological Spectral Theory for Real‐World Data

open access: yesAdvanced Intelligent Discovery, Volume 2, Issue 5, October 2026.
This article investigates how persistent homology, persistent Laplacians, and persistent commutative algebra reveal complementary geometric, topological, and algebraic invariants or signatures of real‐world data. By analyzing shapes, synthetic complexes, fullerenes, and biomolecules, the article shows how these mathematical frameworks enhance ...
Yiming Ren, Guo‐Wei Wei
wiley   +1 more source

Ternary hybrid-nanofluid magneto-convective flow inside the octagonal enclosure with an inner circular obstacle contribution to entropy generation

open access: yesInternational Journal of Thermofluids
Natural convection (NC) plays a pivotal role in convective heat transfer (HT) and has been extensively studied. This research focuses on examining the impact of different parameters on HT and fluid flow behavior of a ternary hybrid nanofluid (Al2O3-Fe3O4
Nur Jahangir Moon   +5 more
doaj   +1 more source

Endoscopic small bowel therapies for type 2 diabetes

open access: yesNutrition in Clinical Practice, Volume 41, Issue 5, Page 1296-1306, October 2026.
Abstract Type 2 diabetes is a global epidemic despite current medical treatments. Many patients are not responsive to medications, and patients with obesity are hesitant about bariatric surgery. Studies investigating the metabolic effects of Roux‐en‐Y gastric bypass have increasingly demonstrated that the duodenum plays a key role in the ...
Roma Patel   +4 more
wiley   +1 more source

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