Results 71 to 80 of about 365,185 (272)

The Game of Credit: A High Stakes Game That Perpetuates the Racial Wealth Gap [PDF]

open access: yes, 2014
Everyone deserves the opportunity to build a financially secure future for themselves and their families. Access to equal opportunities is the cornerstone of America's core values and is also a necessity to growing a healthy economy.
Lindy Carrow
core  

Robust Full‐Surface Bonding of Substrate and Electrode for Ultra‐Flexible Sensor Integration

open access: yesAdvanced Materials, EarlyView.
A direct hybrid bonding method that enables both gold and parylene bonding without adhesives is developed. This technique achieves full‐surface direct bonding of electrodes and substrates in flexible electronic connections. The method offers high flexibility, stable mechanical durability, and high‐resolution interconnections, accommodating varying ...
Masahito Takakuwa   +9 more
wiley   +1 more source

Auditoría de gestión de seguridad informática, en entidades públicas y privadas en Loja

open access: yesMaskana, 2017
RESUMEN Este documento exhibe información sobre normas, estándares y metodologías, utilizados para la gestión de seguridad de un Data Center y Red LAN.
Carlos Jaramillo   +5 more
doaj  

Unlocking NIR‐II Photoluminescence in 2D Copper Tetrasilicate Nanosheets through Flame Spray Synthesis

open access: yesAdvanced Materials, EarlyView.
A flame‐spray‐pyrolysis method is presented to synthesize ultra‐bright CTS nanosheets with tunable NIR‐II emission. Achieving quantum yields up to 34%, these materials support high‐speed imaging and enable super‐resolution in vivo applications such as transcranial microcirculation mapping and macrophage tracking.
Robert Nißler   +12 more
wiley   +1 more source

Desarrollo de software esteganográfico con criptográfia asociada

open access: yesMaskana, 2017
RESUMEN Proteger la información es un requisito fundamental para preservar su confidencialidad e integridad. El uso de criptografía y esteganografía, más que un simple compendio de técnicas y algoritmos, se ha convertido en una necesidad urgente en ...
Jorge Rivadeneira, Basel Halak
doaj  

Heterojunction‐Driven Stochasticity: Bi‐Heterojunction Noise‐Enhanced Negative Transconductance Transistor in Image Generation

open access: yesAdvanced Materials, EarlyView.
This work engineered a bi‐heterojunction noise‐enhanced negative transconductance (BHN‐NTC) transistor using a half‐PTCDI‐C13 layer, achieving expanded and tunable noise characteristics. This advancement enables efficient multi‐bit TRNGs for AI‐driven image generation and enhances logic circuit applications.
Youngmin Han   +6 more
wiley   +1 more source

Valence and Site Engineering Enable Efficient Broadband Near‐Infrared Emission at 960 nm in Cr3+‐Activated Forsterite

open access: yesAdvanced Materials, EarlyView.
This study reports a near‐infrared (NIR) luminescent material (Mg2SiO4:1.5%Cr,5%Li) with efficient (EQE = 48%) ultra‐broadband (FWHM ≈ 2413 cm−1 (226 nm)) NIR emission at 960 nm upon blue‐light excitation. This innovation addresses the low efficiency of long‐wavelength (λmax > 900 nm) NIR‐emitting materials due to the radiationless de‐activation and ...
Lei Zhong   +11 more
wiley   +1 more source

A Roadmap for Plasma‐Enabled Electrocatalysis in Urea Production

open access: yesAdvanced Materials, EarlyView.
A modular plasma—electrochemical platform enables fully electrified urea synthesis from air and CO2 under ambient conditions. This Review integrates plasma oxidation, C─N coupling electrolysis, mechanistic insights, and techno‐economic metrics into a roadmap for scalable, distributed, and renewable fertilizer production.
Jingwen Huang   +6 more
wiley   +1 more source

A Review of Security Threats by The Unauthorized in The E-Learning

open access: yes, 2015
Computers have become an integral part of our everyday existence. They are used to store and to send among students’ letters and sensitive documents, materials.
M. Saleh
semanticscholar   +1 more source

Miniaturized Devices for On‐the‐Spot Generation of Small‐Diameter Vascular Grafts

open access: yesAdvanced Materials Technologies, EarlyView.
An intracorporeal extrusion device is developed for on‐the‐spot generation of vascular grafts with tunable diameters spanning from 1 to 6 mm. The device uses biomimetic polymers and light, to promptly obtaining biocompatible and high‐burst pressure‐resistant grafts.
Deyanira Hernandez‐Sanchez   +11 more
wiley   +1 more source

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