Results 41 to 50 of about 72,057 (311)

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

open access: yesAdvanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim   +5 more
wiley   +1 more source

A Crystalline and Thermally Stable Selenocysteine Selenenic Acid

open access: yesAngewandte Chemie, EarlyView.
The long‐sought catalytic intermediate of selenoproteins, selenocysteine selenenic acid (Sec–SeOH), is isolated for the first time at ambient temperature. A bioinspired selenopeptide sequence encapsulated within a protective molecular cradle and an oxidant‐free route from selenenyl iodide (Sec–SeI) enable the isolation of Sec–SeOH. Contrary to the long‐
Ryosuke Masuda, Satoru Kuwano, Kei Goto
wiley   +2 more sources

Determinants of institutional delivery service utilization among internally displaced vulnerable populations in Benadir region, Somalia: A community based cross-sectional study

open access: yesJournal of Migration and Health
Background: Every day, nearly 830 women succumb to preventable pregnancy and childbirth-related complications, with 99 % of maternal deaths occurring in developing nations.
Hassan Abdullahi Dahie   +9 more
doaj   +1 more source

Flexible Pressure Sensor With Co‐Optimized Sensitivity and Linearity Based on Gradient Toroidal Microstructures

open access: yesAdvanced Materials Technologies, EarlyView.
A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang   +8 more
wiley   +1 more source

Indoor residual spray bio-efficacy and residual activity of a clothianidin-based formulation (SumiShield® 50WG) provides long persistence on various wall surfaces for malaria control in the Democratic Republic of the Congo

open access: yesMalaria Journal, 2019
Background Bio-efficacy and residual activity of SumiShield® 50WG (50%, w/w) with active ingredient clothianidin, a neonicotinoid compound, was assessed using an insecticide-susceptible laboratory strain of Anopheles arabiensis.
Leonard M. Ngwej   +6 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Gestão compartilhada no Parque Nacional da Serra do Divisor, Acre: desafios e oportunidades

open access: yesLabor & Engenho, 2017
A gestão de unidades de conservação é de extrema relevância ao desenvolvimento regional da Amazônia, somando-se os desafios da economia extrativa, das grandes obras de infraestrutura e os possíveis efeitos das mudanças climáticas.
Ayri Saraiva Rando   +2 more
doaj   +1 more source

vatlab/sos-notebook: Release corresponding to sos 0.19.3

open access: yes, 2019
<p>A release for sos 0.19.3.</p ...
gaow, junma80, Bo
core   +1 more source

Faster and Durable: A Cell‐to‐System Validation of a Low‐Degradation Fast‐Charge Protocol for Li‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
A physics‐based framework resolving graphite phase‐separation dynamics establishes a predictive, degradation‐aware fast‐charging methodology for commercial Li‐ion batteries. The resulting model‐informed protocol achieves 20%–80% state‐of‐charge in 14 min while matching the long‐term degradation of a commercial 25‐minute EV strategy.
Marco Lagnoni   +10 more
wiley   +1 more source

Institutional and home delivery practices and their predictors among women in Benadir region, Somalia: a community-based cross-sectional study

open access: yesGynecology and Obstetrics Clinical Medicine
Background Somalia has one of the highest maternal mortality rates globally, driven by decades of conflict, fragile health systems and limited access to skilled birth attendance.
Hassan Abdullahi Dahie   +14 more
doaj   +1 more source

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