Results 61 to 70 of about 3,146,311 (275)

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

Systematic disparities in reporting on community firearm violence on local television news in Philadelphia, PA, USA

open access: yesPreventive Medicine Reports
Objective: To better understand how community firearm violence (CFV) is communicated to the public, we aimed to identify systematic differences between the characteristics of shooting victims and events covered on television news and all shootings in ...
Jessica H. Beard   +8 more
doaj   +1 more source

How to Stop Mass Shootings

open access: yesNew England Journal of Medicine, 2018
How to Stop Mass Shootings Mass shootings are creating unprecedented demand for action. Background-check policies and gun-violence restraining orders are supported by the vast majority of Americans and could save many lives if properly designed, widely enacted, and adequately implemented.
openaire   +2 more sources

Perceptions of School and Mass Shootings

open access: yes, 2022
Building upon prior research, the current research examined the extent to which people's perceptions of school and mass shootings mirror the reality of those ...
Robin Kowalski
core   +1 more source

Freeze‐Thaw Engineered Dual Conductivity Polymeric Binder Stabilizes Large‐Volume‐Change Lithium–Ion Battery Anodes

open access: yesAdvanced Functional Materials, EarlyView.
This work developed an all‐aqueous freeze‐thaw strategy to create a dual‐conductive PVA/P3KBT binder for high volume‐change lithium–ion battery anodes. The resulting binder system strengthens the electrode structure, supports ion and electron transport, and accommodates repeated volume changes, reducing cracking and improving long‐term cycling ...
Haoze Ren   +17 more
wiley   +1 more source

Tetracyclic π‐Extended Multi‐Resonant TADF Emitters for Green PSF‐OLEDs With 37.7% EQE and BT.2020‐Compatible Top‐Emitting Devices

open access: yesAdvanced Functional Materials, EarlyView.
Ultra‐narrow green multi‐resonance thermally activated delayed fluorescence emitters have been developed by linear π‐extension strategy using tetracyclic naphtho[2,3‐b]benzofuran unit. The resulting phosphorescence‐sensitized OLEDs achieve a maximum external quantum efficiency of 37.7% in the bottom‐emitting architecture, while the complementary top ...
Eo Jin Jeon   +7 more
wiley   +1 more source

School Shootings and Student Performance [PDF]

open access: yes
In this paper, we study how high school students reacted to the shocking news of a school shooting. The shooting coincided with national high-school matriculation exams.
Olli Ropponen, Panu Poutvaara
core   +2 more sources

Analysis of Recent Mass Shootings [PDF]

open access: yes, 2015
Everytown For Gun Safety conducted a comprehensive analysis of every mass shooting between January 2009 and July 2015 that was identifiable through FBI data and media reports.

core   +2 more sources

Massacres in educational institutions: mechanisms, causes, prevention [PDF]

open access: yesНациональный психологический журнал, 2018
Introduction. The massacres in schools and colleges committed by their students are initially associated with the United States, but in recent decades the phenomenon has spread to other countries including Russia.
Denis G. Davydov, Kirill D. Khlomov
doaj   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

open access: yesAdvanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar   +1 more
wiley   +1 more source

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