Results 101 to 110 of about 387,766 (272)

Early warning: a people-centred approach to early warning systems and the 'last mile' [PDF]

, 2009
The people-centred approach to early warning focuses on how communities can understand threats and avoid them. Disasters are partly caused by external hazards, but they also stem simply from vulnerability: people being in the wrong place without adequate
Collins, Andrew
core  

History of the all-welded Evgeny Paton Bridge

Історія науки і техніки
This article explores the history of science and technology through the lens of the design, fabrication, and long-term operational experience of the Evgeny Paton Bridge in Kyiv, the world’s first all-welded highway bridge.
Oleh Strelko
doaj   +1 more source

1D Light‐Emitting MAPbBr3 Perovskite Encapsulated in Carbon Nanotubes

Advanced Functional Materials, EarlyView.
Encapsulation of MAPbBr3 perovskite in single‐walled carbon nanotubes (SWCNTs) yields a hybrid nanomaterial with distinctive optoelectronic properties. Perovskite confinement induces a unified single‐peak photoluminescence (PL) with a reduced lifetime, while charge transfer alters the optical properties of nanotubes.
Valentina A. Eremina, Timofei Eremin, Hua Jiang, Rakesh Dhama, Jokotadeola Odutola, Humeyra Caglayan, Nikolai V. Tkachenko, Petr A. Obraztsov   +7 more
wiley   +1 more source

Assessments in Policy-Making: Case Studies from the Arctic Council [PDF]

, 2014
Julkaistu ...
Banul, Karolina, Kankaanpää, Paula, Koivurova, Timo, Lesser, Pamela, Stępień, Adam, Śmieszek, Małgorzata   +5 more
core  

Chronicle of a Pandemic Foretold. CEPS Policy Insights No 2020-05 / March 2020 [PDF]

, 2020
In just a few weeks, COVID-19 appeared in China and quickly spread to the rest of the world, including Europe and the United States. Many have rushed to describe the outbreak as a ‘black swan’ – an unpredictable event with extremely severe consequences ...
Castro, Rosa J., Renda, Andrea.
core  

Single‐Step Conversion of Metal Impurities in CNTs to Electroactive Metallic Nitride Nanoclusters for Electrochemical CO2 Reduction

Advanced Functional Materials, EarlyView.
A single‐step, low‐temperature co‐pyrolysis process removes encapsulated seed metal NPs (10–50 nm) from CNTs, redistributing them as surface‐anchored metal and metal–nitride NCs (1–1.5 nm). Herein, Ni3N NCs achieve an ultra‐low onset overpotential for CO2 reduction to CO with >98% Faradaic efficiency across 100–700 mA cm−2.
Ahmed Badreldin, John Pellessier, Francisco Alejandro Ospina Acevedo, Siyuan Fang, Carter Racine, Jin Feng, Alvin Chang, Yulu Ge, Yang Gang, Shengyao Wang, Xiaokun Yang, Sergei Ivanov, Zhenxing Feng, Yun Hang Hu, Perla B. Balbuena, Ying Li   +15 more
wiley   +1 more source

Precise Quantification of Angiogenesis in 3D Biomaterials Using in Vitro CAM Models: Enhancing 3Rs in Research and Minimizing in Vivo Dependency

Advanced Functional Materials, EarlyView.
The study develops elastin–fibrin scaffolds and evaluates angiogenesis using the chorioallantoic membrane (CAM) model. Advanced imaging with confocal microscopy and Indocyanine Green dye enables precise 3D quantification of vascular networks. Findings demonstrate superior microvessel visualization compared to micro‐CT using Microfil and Optiray 350 ...
Ece Melis Er, Martha Patricia Pérez González, Beatriz Gil Garrido, Jasmine Ho, Hae‐Won Kim, Jonathan Campbell Knowles, Jia Hua, Ferdinand Lali, Prasad Sawadkar   +8 more
wiley   +1 more source

Temperature‐Enhanced Supramolecular Polymer Adhesion Provided by Concurrent Utilization of Calix[4]Pyrrole and Crown Ether Molecular Recognition

Advanced Functional Materials, EarlyView.
Simultaneous utilization of calix[4]pyrrole‐ and crown ether‐based molecular recognition allows the construction of a high molecular weight alternating supramolecular polymer. This heat processible polymer can be used as a durable and reusable adhesive on glass and steel with temperature‐enhanced adhesion strength without the need for a solvent ...
Deniz Memis, Abdullah Aydogan
wiley   +1 more source

COMPARATIVE STUDY REGARDING THE MICRO-HARDNESS OF SOME AESTHETIC RESTORATIVE MATERIALS

Romanian Journal of Oral Rehabilitation, 2015
Background In recent years and mainly after 2000, the trends in terms of the structure of dental composites have addressed the progressive decrease of filler particle size down to nanometric level. All these result from the need to continuously improve
Irina Grădinaru, Elena Raluca Baciu, Daniela Calamaz, Maria Baciu   +3 more
doaj  

Understanding Trends, Influences, Intellectual Structures, and Future Directions in Agrivoltaic Systems Research: A Bibliometric and Thematic Analysis

World
Agrivoltaic (AV) systems have emerged as a transformative solution to global challenges in food–energy–water security, climate resilience, and sustainable land use.
Altyeb Ali Abaker Omer, Fangxin Zhang, Ming Li, Xinyu Zhang, Feng Zhao, Wenhui Ma, Wen Liu   +6 more
doaj   +1 more source