Results 91 to 100 of about 337,782 (267)

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese   +8 more
wiley   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Gestión de la calidad y control interno en el proceso docente del Centro Nacional de Cirugía de Mínimo Acceso

open access: yesRevista Habanera de Ciencias Médicas
Introducción: la complejidad de los procesos que se realizan en las instituciones de salud y la alta responsabilidad social de este sector hacen necesaria la aplicación de sistemas de gestión que garanticen un alto nivel de calidad de los servicios que ...
Rosalba Roque González   +5 more
doaj  

PREVENTION AND CORRECTION OF INACCURACIES IN THE OBJECTIVITY OF THE UNIFIED STATE EXAMINATION IN MATHEMATICS [PDF]

open access: yesKrymskij Naučnyj Vestnik, 2015
The article deals with topical issues of use and improvement of means of evaluation of the results of mathematical preparation of students of educational institutions.
Igor Kiselnikov
doaj  

Influence of Student Feedback on the Quality of Teaching among Clinical Teachers in Bahrain. [PDF]

open access: yesMed Sci Educ, 2020
Al Ansari A   +4 more
europepmc   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Quality teaching matters: perspectives on quality teaching for the modernization of higher education. A position paper

open access: yesFormazione & Insegnamento, 2014
This position paper attempts to ground the discussion on improving the quality of teaching in the context of Higher Education (HE) in order to take concrete directions toward what in the scientific literature is identified as a culture of quality in ...
Patrizia Ghislandi, Juliana Raffaghelli
doaj  

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

open access: yesAdvanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi   +9 more
wiley   +1 more source

Discovery of Energy‐Localized Trap States via Opto‐Electrical Spectroscopy in UWBG Perovskite La:SrSnO3 FETs

open access: yesAdvanced Functional Materials, EarlyView.
Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung   +17 more
wiley   +1 more source

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