Results 171 to 180 of about 1,369,451 (372)
Pot‐Economical Synthesis of Fluorinated Pyrrolizinone Derivatives
Advanced Synthesis &Catalysis, EarlyView.Abstract A new family of fluorinated dihydropyrrolizinones has been synthesized starting from fluorinated enamino amides and aliphatic conjugated ketones. The reaction comprises a cross metathesis reaction followed by a tandem cycloaromatization/ enamine hydrolysis/ intramolecular Friedel‐Crafts alkylation sequence.
Lidia Prieto +6 more
wiley +1 more source
Range-Based Estimation of Stochastic Volatility Models or Exchange Rate Dynamics are More Interesting Than You Think [PDF]
We propose using the price range, a recently-neglected volatility proxy with a long history in finance, in the estimation of stochastic volatility models.
Francis X. Diebold +2 more
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Advanced Synthesis &Catalysis, EarlyView.Abstract α‐Chiral amines are versatile building blocks for the asymmetric synthesis of optically pure high‐added‐value chemicals, including pharmaceuticals, agrochemicals, and natural products. Herein, we report a one‐pot, two‐step sequential deracemization of racemic sec‐alcohols to optically enriched primary amines throught a photo‐biocatalytic ...
Natalia Antos +5 more
wiley +1 more source
The Volatility of Realized Volatility [PDF]
Using unobservable conditional variance as measure, latent–variable approaches, such as GARCH and stochastic–volatility models, have traditionally been dominating the empirical finance literature.
Christian Pigorsch +3 more
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Advanced Synthesis &Catalysis, EarlyView.Abstract A novel, metal‐free, air‐ and moisture‐compatible one‐pot tandem protocol for the regio‐ and stereoselective synthesis of Z‐vinyl sulfides (achieving yields up to 99%), is reported. This straightforward and efficient process combines the selective hydroiodination of internal alkynes, promoted by the eutectic mixture choline iodide (ChI)/p‐TsOH
Gloria Morís‐Menéndez +5 more
wiley +1 more source
Advanced Sensor Research, EarlyView.This study presents a novel strategy for the detection of polyphenols in wine. By combining Quartz Crystal Microbalance with Dissipation Monitoring and original functionalization strategies, Gelatin A from porcine skin and Mouse Proline‐Rich Protein 5, polyphenols are successfully detected directly in wine without any prior sample preparation ...
Giorgia Tori +10 more
wiley +1 more source
Commodity price volatility and Tax revenues: Evidence from developing countries [PDF]
The recent boom and bust in commodity prices has renewed the policymakers’ interest in three complementary issues: i) characteristics and determinants of commodity price instability, ii) its macroeconomic effects and, iii) the optimal policy responses to
Hélène EHRHART, Samuel GUERINEAU
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Stochastic Volatility in a Macro‐Finance Model of the U.S. Term Structure of Interest Rates 1961–2004 [PDF]
, 2008 Peter Spencer
openalex +1 more source
Ammonia Dynamics in the Human Body: Insights in Biomedical Sensing Technologies
Advanced Sensor Research, EarlyView.Ammonia (NH3) is a significant biomarker in diagnostics, affecting the respiratory system, stomach, liver, kidneys, bladder, and gastrointestinal tract. NH3 detection, using sensors, has the potential to improve medical diagnosis. This review examines recent advancements in NH3 sensing technologies and explores future research directions, including ...
Annelot Nijkoops +8 more
wiley +1 more source
What Explains High Commodity Price Volatility? Estimating a Unified Model of Common and Commodity-Specific, High- and Low-Frequency Factors [PDF]
We estimate a model of common and commodity-specific, high- and low-frequency factors, built on the spline-GARCH model of Engle and Rangel (2008) to explain the period of exceptionally high price volatility in commodity markets during 2006-2008.
Karali, Berna, Power, Gabriel J.
core +1 more source