Results 71 to 80 of about 291,407 (213)

Economic Cycle and Firm Managerial Strategies [PDF]

Ovidius University Annals: Economic Sciences Series, 2019
Over time many economists have focused on the problems of economic cycles and crises. Economic cycles are generally the result of global demand displacement, its decrease bringing about reduction of production as well whereas its increase leads to ...
Camelia Băeșu
doaj  

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Tres afirmaciones sobre pobreza, ciclo económico y desigualdad social desde los años noventa en Colombia

Revista Finanzas y Política Económica, 2009
Se plantea que desde el último cuarto del siglo pasado la transicióndemográfica creó condiciones para el aumento del ingreso per cápita, perono hubo reducción de la pobreza, porque para una disminución significativade ésta es preciso actuar sobre las ...
Alcides Gómez Jiménez
doaj  

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

Advanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez, Ruth Tarpey, Benjamin Brennan, Bryan D. Boyle, Amir M. Alsharabasy, Abhik Mallick, Gabriella Bellavia, Abhay Pandit, Garry P. Duffy, Ruth E. Levey   +9 more
wiley   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Poverty, inequality and macroeconomic instability

Economia Aplicada, 2000
Over the past seventeen years the Brazilian macroeconomic performance has been considerably weaker than in previous decades. Inflation reached unprecedented levels and economic growth declined considerably.
Ricardo Paes de Barros, Carlos Corseuil, Rosane Mendonça, Mauricio Cortez Reis   +3 more
doaj  

The unidirectional relationship between consumer confidence and PSI-20 returns - The influence of the economic cycle

Revista Contabilidade & Finanças
The aim of this paper is to determine the relationship between market sentiment and rates of return on the main Portuguese benchmark and verify whether this relationship is influenced by different economic cycles.
Maria Elisabete Duarte Neves, Luís Miguel Aragão Duarte Gonçalves, Mario Joaquim Silva Ribeiro, Paulo Jorge Santiago Feiteira, Clara Margarida Pisco Viseu   +4 more
doaj   +1 more source

Self‐Assembled Hybrid Cell‐Enzyme Materials for Gas‐Powered Biocatalysis

Advanced Functional Materials, EarlyView.
Integrating living cells with programmable enzyme networks enables hybrid materials that convert gaseous feedstocks into chemical reducing power. These gas‐powered catalytic beads operate as modular, recyclable platforms for adaptive biocatalysis and sustainable synthesis.
Marius Stoeckle, Kersten S. Rabe, Christof M. Niemeyer   +2 more
wiley   +1 more source

THE AUSTRIAN SCHOOL OF ECONOMICS AND MARKET INSTABILITY [PDF]

CES Working Papers, 2013
Market equilibrium is an illusion. The economic reality shows us that the main characteristic of the markets is the state of instability. The complexity of the phenomenon and the strong implications engendered by the economic fluctuations in the macro ...
Claudiu Peptine, Claudiu-Gabriel Tiganas
doaj  

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

Advanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding, Limeng Song, Wei Li, Jiangtao Hao, Xuewen Jiang, Mengru Li, Xinglai Yuan, Gang Wang, Yanqiu Zhu, Mi Tian, Hailong Wang, Hongxia Li, Biao Zhao, Rui Zhang, Bingbing Fan   +14 more
wiley   +1 more source