Results 51 to 60 of about 2,363 (185)

Ultrasensitive Isomer Discrimination: A Joint Surface‐Enhanced Raman Scattering (SERS) Spectroscopy and Machine Learning Strategy

Advanced Sensor Research, Volume 4, Issue 3, March 2025.
The fabrication of plasmonic platforms with exceptional sensitivity for the accurate discrimination and quantification of various structural, geometrical, and optical isomers is presented, by means of surface‐enhanced Raman scattering (SERS) spectroscopy combined with machine learning algorithms.
Verónica Montes‐García, Victor F. Martín, Manuel Obelleiro‐Liz, Ignacio Pérez‐Juste, Artur Ciesielski, Paolo Samorì   +5 more
wiley   +1 more source

Aprendizaje colaborativo soportado por computador (CSCL): su estado actual

Revista Iberoamericana de Educación, 2004
Este artículo sintetiza las investigaciones empíricas de los últimos años sobre los efectos del trabajo en pequeños grupos o aprendizaje colaborativo soportado por computador (CSCL), y en especial en el trabajo que se viene adelantando en los últimos ...
Elsa Piedad Cabrera Murcia
doaj  

Enhancing Public Health Policy Communication Through Government–Citizen Social Media Interactions: The Impact of Replying Agents, Inquiry Tone, and Institutional Trust

Policy &Internet, Volume 17, Issue 1, March 2025.
ABSTRACT This study examines how government responses to citizen inquiries on governmental social media enhance policy communication campaigns for observers. Drawing upon theories of masspersonal communication and artificial intelligence (AI)‐mediated communication, it investigates the effects of replying agents, inquiry tones, and institutional trust ...
Xinzhi Zhang, Fangcao Lu
wiley   +1 more source

Full SiC Three‐Level T‐Type Quasi‐Z Source Inverter as Grid‐Forming Unit in Islanded Nanogrid

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
The paper presents the design, assembling and testing of a full SiC islanded nG comprising a SiC 3L T‐Type qZSI laboratory prototype acting as a grid ‐forming unit and two 2L VSIs switching at a frequency of 50 kHz. ABSTRACT As the electricity landscape evolves towards greater penetration of renewable energy, voltage source inverters (VSIs) have ...
Javier Gutiérrez‐Escalona, Carlos Roncero‐Clemente, Oleksandr Matiushkin, Eva González‐Romera, V. Fernão Pires, Enrique Romero‐Cadaval   +5 more
wiley   +1 more source

Riesgos y daños a la salud derivados del uso de videoterminal

Salud Pública de México, 2003
OBJETIVO: Evaluar la relación de daños a la salud con el uso de videoterminal, riesgos laborales y factores psicosociales en trabajadores de un diario informativo.
Tamez González Silvia, Ortiz-Hernández Luis, Martínez-Alcántara Susana, Méndez-Ramírez Ignacio   +3 more
doaj  

Dielectric‐Doped 2D Tellurium Diodes for Zero‐Bias Radio Frequency Power Detection

Advanced Electronic Materials, Volume 10, Issue 11, November 2024.
This work presents a 2D Tellurium (Te)‐based radio frequency (RF) diode that exploits a dielectric doping technique to enhance its performance as a power detector. The atomic layer deposited Al2O3 is used to n‐type dope the Te flake to engineer the rectifying Schottky contact.
Paula Palacios, Abdelrahman M. Askar, Francisco Pasadas, Mohamed Saeed, Enrique G. Marin, Michael M. Adachi, Renato Negra   +6 more
wiley   +1 more source

Minicomputadores brasileiros nos anos 1970: uma reserva de mercado democrática em meio ao autoritarismo

História, Ciências, Saúde: Manguinhos, 2003
Um novo entendimento do sucesso e do fracasso da assim chamada política de reserva de mercado dos computadores é oferecido chamando atenção para as redes, as rupturas e as interferências sociotécnicas.
Marques Ivan da Costa
doaj  

Simulation Perspectives of Sub-1V Single-Supply Z²-FET 1T-DRAM Cells for Low-Power

IEEE Access, 2019
With the upcoming Internet of Things (IoT), low-power devices are becoming mainstream these days. The need for memory elements able to operate at reduced biasing conditions is therefore of utmost importance.
Carlos Navarro, Carlos Marquez, Santiago Navarro, Carmen Lozano, Sehyun Kwon, Yong-Tae Kim, Francisco Gamiz   +6 more
doaj   +1 more source

Evaluating cryptographic vulnerabilities created by quantum computing in industrial control systems

Journal of Critical Infrastructure Policy, Volume 5, Issue 2, Page 88-110, Fall/Winter 2024.
Abstract Quantum computing is expected to eventually be able to break the public‐key cryptography algorithms currently used throughout information technology (IT) infrastructure, undermining foundational tools used to maintain information security across the country's critical infrastructure.
Michael J. D. Vermeer, Chad Heitzenrater, Edward Parker, Alvin Moon, Domenique Lumpkin, Jalal Awan   +5 more
wiley   +1 more source

Dynamically Reconfigurable Micro‐Patterned Hydrogels Based on Magnetic Pickering Emulsion Droplets

Macromolecular Rapid Communications, Volume 45, Issue 18, September 2024.
Self‐reconfigurable micro‐patterned hydrogels based on Pickering emulsion droplets stabilized by magnetic particles are fabricated. These particles harness energy from external fields so that hundreds of droplets organize into field‐guided patterns, which are immobilized within the hydrogels.
Alfredo Escribano‐Huesca, Cristina Gila‐Vilchez, Alba Amaro‐da‐Cruz, Alberto Leon‐Cecilla, Mikel G. Palomo, Sergio Ortiz‐Ruiz, Francisco G. Ruiz, Ignacio Moya‐Ramirez, Modesto T. Lopez‐Lopez, Laura Rodriguez‐Arco   +9 more
wiley   +1 more source