Results 61 to 70 of about 99,399 (268)

Solar Wind Proton Implantation and Hydrogen Diffusion: Model Comparisons to M3 Observations

open access: yesThe Planetary Science Journal
The Moon Mineralogy Mapper (M ^3 ) observed a widespread 3 μ m absorption feature on the lunar surface, commonly attributed to surficial OH and/or H _2 O. The feature varies with latitude, local time, and lunar phase, suggesting that at least part of the
O. J. Tucker   +5 more
doaj   +1 more source

Comparing technology-enhanced and conventional Van Hiele Phased Instruction in advancing learners through Van Hiele levels in transformation geometry

open access: yesCogent Education
Developing learners’ geometric reasoning remains a persistent challenge in secondary mathematics education, particularly in transformation geometry, where many learners struggle to progress through the hierarchical Van Hiele levels of geometric thinking.
Issa Ndungo   +3 more
doaj   +1 more source

RNA Promotes Synapsin Condensates That Organize Synaptic Vesicles in Live Neurons and Enable Localized Translation in Reconstituted System

open access: yesAdvanced Science, EarlyView.
Condensates at synapses organize synaptic vesicles (SVs) and are crucial for efficient neurotransmitter release, yet how RNA contributes to this mesoscale architecture remains poorly understood. Here we uncover that RNA modulates synapsin–driven condensates.
Branislava Rankovic   +21 more
wiley   +1 more source

Recent Tectonic Deformation of the Lunar Farside Mare and South Pole–Aitken Basin

open access: yesThe Planetary Science Journal
The timing and scale of lunar tectonism provide a crucial insight into the geologic evolution of Earth’s Moon. Within the nearside lunar maria, wrinkle ridges formed during and after the emplacement of the mare basalts as a result of subsidence-induced ...
C. A. Nypaver   +2 more
doaj   +1 more source

3D Printed Meter‐Scale Soft Origami Robots Capable of Load‐Bearing Actuation Via Crease Stiffness Modulation

open access: yesAdvanced Science, EarlyView.
Origami has inspired numerous soft deployable mechanisms for safe human‐robot interaction, while its intrinsic kinematic instability at arbitrary configurations limited their practical robotic application. This work presents a 3D printed meter‐scale origami robotic actuator capable of load‐bearing deformation through creaseline stiffness modulation.
Sung Yol Yu   +5 more
wiley   +1 more source

Fragmenti o intertekstu pesničkog dela Stevana Pešića

open access: yesSlavistična Revija, 2018
U radu je ukazano na reflekse slovenskog mitološkog nasleđa i folklorne tradicije u pesništvu Stevana Pešića. Kao semantički i ekspresivno aktivan citatni i intertekstualni sloj autorskog iskaza, mitsko i usmenopoetsko pesničko iskustvo Pešićevo delo ...
Snežana Šarančić Čutura
doaj  

Probing Lateral Density Variations in the Crust from Gravity and Topography: Applications to the Moon and Mars

open access: yesThe Planetary Science Journal
We present a constraint matrix to be used in the determination of gravity field models from spacecraft tracking data that uses information from topography and that allows for the direct determination of lateral variations in crustal density. Our approach
Sander Goossens, Terence J. Sabaka
doaj   +1 more source

Recapitulating In Vivo Pharmacokinetics and Size‐Dependent Nanomedicine Delivery in a Microfluidic Platform

open access: yesAdvanced Science, EarlyView.
A microfluidic tumor platform integrates pharmacokinetic flow control, vascular‐like barriers, and 3D tumor spheroids to emulate in vivo drug exposure. The system reproduces dynamic concentration–time profiles and enables size‐dependent nanoparticle transport and efficacy evaluation, providing a predictive framework for assessing nanomedicine ...
Su Jeong Kang   +5 more
wiley   +1 more source

A Multiscale Mechanistic Framework for Polydopamine Dyeing in Ultrablack Wool Textiles

open access: yesAdvanced Science, EarlyView.
Ultrablack photonic textiles are enabled through polydopamine (PDA) dyeing, which is governed by the interplay of PDA chemistry, wool surface topology and chemistry, and hierarchical fiber–yarn–fabric architecture. Fabric architecture emerges as a primary and previously underappreciated design lever for wide‐angle optical performance.
Hansadi Jayamaha   +4 more
wiley   +1 more source

Atomistic Kinetics of Dislocation‐Mediated Grain Growth in Monolayer MoS2

open access: yesAdvanced Science, EarlyView.
Atomic‐resolution in‐situ heating microscopy directly visualizes dislocation‐mediated grain boundary migration and grain growth in monolayer MoS2. Mobile grain boundaries migrate through collective motion of Mo 5|7 dislocations, whereas S 5|7 defects remain largely immobile.
Chang‐Won Choi   +11 more
wiley   +1 more source

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