Results 81 to 90 of about 70,122 (268)

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Math 413 Mathematics for the Middle Grades

open access: yes, 2013
MATH 413, Mathematics for the Middle Grades (3)\ud Prerequisite: Senior standing and mathematics 311 or 312.\ud Teacher-level look at mathematics taught in middle grades, to include proportional reasoning, rational and real numbers, probability, and ...
Bowers, Janet
core  

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Math Anxiety: How Close Are We to Solving the Puzzle? [PDF]

open access: yes
openThe main focus of this thesis is to determine to what extent the research on math anxiety has flourished mainly in the light of psychological variables. Considering the history of math anxiety, the thesis attempts to discuss joint research strands in
ALURI, KRANTHI
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Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh   +12 more
wiley   +1 more source

Math Attitudes and Math Performance in Primary School Children: A Comparison between International and Italian State School Systems [PDF]

open access: yes
openThis research investigates the relationship between math attitudes and math performance in primary school children, focusing on comparisons between the international and Italian state school systems. The research aims to explore how attitudes towards
QUERZOLI, VALENTINA SARAH
core  

Math Wars

open access: yes, 2004
In this article, Alan Schoenfeld presents his insightful commentary on a âproductive, middle-groundâ theory in opposition to the extremist views of the math wars. Schoenfeld reviews the history of Mathematics education in the U.S.
Schoenfeld, Alan H.
core   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

A Model for Developing Sustainable Math Instructional Leadership

open access: yes, 2021
The Responsive Math Teaching project has been developing and refining a model for the development of mathematics instructional leadership in a network of 13 urban under-resourced elementary schools.
Project Team, The Responsive Math Teaching
core  

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