Results 41 to 50 of about 8,008,378 (282)

Two Coexisting Pathways to Volatility in Valence‐Change Memory Devices

open access: yesAdvanced Functional Materials, EarlyView.
Volatile VCM‐type memristive devices exhibit current relaxation after resistive switching, but their microscopic origin remains debated. Using pulsed measurements and a new Tunnel‐DLTS approach on Pt/SrTiO3/Nb:SrTiO3 devices, we show that post‐SET volatility is predominantly ionic, while electronic contributions—arising from quasi‐Fermi‐level ...
Johannes Hellwig   +3 more
wiley   +1 more source

Taiwan's History Education and History Textbooks, 1945-2000

open access: yes, 2004
From 1945 to 1993, nationalism and national autonomy were the two themes that the Taiwanese government stressed in history education and history textbooks.
Minghui, Peng (Department of History, National Taiwan Cheng-chi University)
core   +1 more source

Exploring Student and Teacher’s Perception of E-textbooks in a Primary School [PDF]

open access: yes, 2014
The potential of technology in digital society offers multiple possibilities for learning. E-books constitute one of the technologies to which great attention has to be paid. This article presents a case study on the perceptions held by a teacher and his
Camacho-i-Martí, Mar   +8 more
core   +1 more source

EVALUASI ISI BUKU TEKS PELAJARAN SEJARAH PADA MASA ORDE BARU

open access: yesCakrawala Pendidikan: Jurnal Ilmiah Pendidikan, 2013
Abstrak: Evaluasi Isi Buku Teks Pelajaran Sejarah pada Masa Orde Baru. Penelitian ini bertujuan untuk mjengevaluasi isi buku teks sejarah untuk sekolah menengah pada masa Order Baru.
Hieronymus Purwanta
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

open access: yesAdvanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli   +4 more
wiley   +1 more source

Representations of European colonialism, African resistance and liberation struggles in Mozambican history curricula and textbooks

open access: yes, 2018
In this paper we examine the representations of European colonialism and the master narratives conveyed by Mozambican history textbooks, considering their role in the identity processes and nation building.
Cabecinhas, Rosa   +3 more
core   +1 more source

Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
wiley   +1 more source

Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont

open access: yesAngewandte Chemie, EarlyView.
Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley   +11 more
wiley   +2 more sources

Descriptors to Dynamics: A Materials and Device Perspective on in‐Materio Physical Reservoir Computing for Neuromorphic Edge Intelligence

open access: yesAdvanced Materials, EarlyView.
Intrinsic material dynamics are harnessed as computational resources for neuromorphic in‐materio physical reservoir computing. Defects, ionic motion, interfaces, percolation, geometry, and biasing shape transient states that provide fading memory, nonlinearity, and high‐dimensional projection for simple readout. A descriptor‐to‐dynamics framework links
Kshitij RB Singh   +5 more
wiley   +1 more source

From Berzelius to Hyperspace: Previously Unrecognized Network of Reactivity in Textbook Brominations

open access: yesAngewandte Chemie, EarlyView.
Robotic scans across multidimensional condition spaces of classic bromination reactions uncover regions of previously unrecognized reactivity, yielding new major products and novel substitution patterns. Correlation and anticorrelation analyses of product distributions across these hyperspaces enable reconstruction of the underlying mechanistic ...
Yankai Jia   +9 more
wiley   +2 more sources

Home - About - Disclaimer - Privacy