Results 241 to 250 of about 804,718 (365)

Waves of Uncertainty: Crude Oil Under Geopolitical, Economic, and ESG Turbulence

open access: yesEnergy Science &Engineering, EarlyView.
Dynamic copula and wavelet coherence reveal that geopolitical, economic, and sustainability uncertainties significantly shape crude oil price co‐movements. Long‐term coherence, especially post‐2015, highlights the growing role of ESG risks alongside geopolitical shocks and economic crises in global energy risk transmission.
Sana Braiek   +3 more
wiley   +1 more source

Reliability and Degradation Mechanisms of Photovoltaic Modules in Pakistan

open access: yesEnergy Science &Engineering, EarlyView.
Reliability of the PV module. ABSTRACT The number of photovoltaic (PV) installations has grown rapidly in the last 10 years in Pakistan due to the growing electricity demand, the availability of favourable solar resources, and the national renewable energy objectives.
Zafar Ullah Khan   +2 more
wiley   +1 more source

Purification, Structural Characterization, and Anticancer Activity of the Polysaccharide From Sea Red Rice Bran

open access: yesFood Frontiers, EarlyView.
Sea red rice bran polysaccharides were separated and purified by DEAE‐52 column chromatography, yielding three components: SRBP‐I, II, and III. Moreover, all three are pentosan‐type polysaccharides predominantly composed of mannose. Among them, SRBP‐I demonstrated the most potent inhibitory effect on HeLa cells. Further investigation indicated that the
Jianping Chen   +8 more
wiley   +1 more source

A Comparison of Realized Measures of Integrated Volatility: Price Duration‐ vs. Return‐Based Approaches

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann   +2 more
wiley   +1 more source

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