Results 71 to 80 of about 23,402 (259)

Consejo Comunitario del Bajo Calima. Visita del PCN a un aserrío en compañía de la comunidad. Foto 1 [PDF]

, 1998
Visita de miembros del Proceso de Comunidades Negras (PCN), en compañía de pobladores de la región, a un aserrío en el Consejo Comunitario del Bajo Calima (Buenaventura, Valle del Cauca).
Proceso de Comunidades Negras (PCN) - Palenque Regional El Congal
core  

Single‐Step Synthesis of Dithieno[3,2‐b:2′,3′‐e]Pyridines and Their Acid‐Dependent Optical and Photosensitising Properties

Chemistry – A European Journal, EarlyView.
The synthesis of dithieno[3,2‐b:2′,3′‐e]pyridines (DTPs) is herein reported, and their optical properties are studied both experimentally and computationally. Protonation or methylation of the nitrogen atom induced bathochromic shifts in their absorption and emission spectra.
Dominic Taylor, Matthew Wallace, Leonardo Amicosante, Gary S. Nichol, Scott J. Dalgarno, Filipe Vilela, Iain A. Wright, Neil B. McKeown   +7 more
wiley   +1 more source

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

Frontiers in Chemistry, 2020
A new photocatalyst denoted as mTHPC/pCN was prepared by modifying protonated graphitic carbon nitride (pCN) by meso-tetrahydroxyphenylchlorin (mTHPC). Relevant samples were characterized via various methods including zeta potential measurements, X-ray ...
Yanfei Liu, Zhen Ma, Zhen Ma
doaj   +1 more source

Retrospective Outcome Evaluation of Cervical Nucleoplasty Using Digital Infrared Thermographic Imaging [PDF]

Neurospine, 2019
Objective Percutaneous cervical nucleoplasty (PCN) is used to treat cervical disc herniation. Radiological imaging studies, including plain radiography, computed tomography (CT), and magnetic resonance imaging (MRI), have been used to make early ...
Do Hyung Kim, Young Soo Kim, Sang Joon Shin, Hyun Kang, Seokhoon Kim, Hwa Yong Shin   +5 more
doaj   +1 more source

Parallel programming with PCN. Revision 2 [PDF]

, 1993
PCN is a system for developing and executing parallel programs. It comprises a high-level programming language, tools for developing and debugging programs in this language, and interfaces to Fortran and Cthat allow the reuse of existing code in ...
Tuecke, S., Foster, I.
core   +1 more source

Polyoxometalates in Photocatalytic CO2 Reduction: Multielectron Redox Regulation Across Molecular and Hybrid Architectures

EcoEnergy, EarlyView.
This review focuses on multielectron redox regulation across molecular and hybrid architectures for photocatalytic CO2 reduction, covering intrinsic POM photocatalysts, photosensitizer‐assisted assemblies, POM–metal–organic complexes, and POM‐integrated semiconductors and MOF/COF heterostructures to link structural motifs with charge transport, product
Bonan Li, Xiaowen Ruan, Sai Kishore Ravi
wiley   +1 more source

Platinum Nanoparticles Loaded in Polydopamine-Modified Porous Coordination Network-224 with Peroxidase-Like Activity for Sensitive Glutathione Detection

Biomolecules
The content of glutathione in the human body is crucial to human health, so a convenient and efficient method is needed to detect it. Herein, porous coordination network-224 (PCN-224) was modified by polydopamine to prepare polydopamine-modified PCN-224 (
Shoubei Gao, Mingyue Gao, Chenran Zhen, Yanshuai Cui, Xianbing Ji, Ruyu Li, Longgang Wang   +6 more
doaj   +1 more source

Pseudomonas aeruginosa pyocyanin activates NRF2-ARE-mediated transcriptional response via the ROS-EGFR-PI3K-AKT/MEK-ERK MAP kinase signaling in pulmonary epithelial cells.

PLoS ONE, 2013
The redox-active pyocyanin (PCN) secreted by the respiratory pathogen Pseudomonas aeruginosa generates reactive oxygen species (ROS) and causes oxidative stress to pulmonary epithelial cells.
Ying Xu, Chaohui Duan, Zhizhou Kuang, Yonghua Hao, Jayme L Jeffries, Gee W Lau   +5 more
doaj   +1 more source

Co‐Catalyst/Semiconductor Interface Coupling Design for Efficient Solar‐Driven Photocatalysis

EcoEnergy, EarlyView.
Interfacial coupling strength is proposed as a unifying descriptor governing charge‐transfer behavior in co‐catalyst/semiconductor photocatalytic systems. This review establishes a coupling‐strength‐guided framework that correlates interface engineering strategies with charge transport pathways, electronic structure regulation, and photocatalytic ...
Fangxu Dai, Zhiyu Song, Meiyan Qiu, Zhen Zhang, Dan Zhang, Xiaobo Chen, Yun Hau Ng, Xin Li   +7 more
wiley   +1 more source

Trifunctional catalytic performance of cobalt, praseodymium, and neodymium decorations on porous graphitic carbon nitride/CNT composites for HER, OER, and ORR

Results in Chemistry
This study presents the synthesis of various metal-decorated porous graphitic carbon nitride and carbon nanotube composite (PCN-CNT) aimed at investigating their catalytic performance through the oxygen reduction and evolution and hydrogen evolution ...
Sara Bakhtavar, Mehdi Mehrpooya, Seyed Sina Hosseini, Mohammad Reza Ganjali, Ralf Riedel   +4 more
doaj   +1 more source