Results 81 to 90 of about 45,620 (291)

Phase‐Change Solvents for Thermally Switchable Ion Conduction in Organogels

open access: yesAdvanced Materials, EarlyView.
Organogels containing salts dissolved in phase‐change solvents exhibit thermally switchable ion conduction. The organogels, which display an over 10 000‐fold on‐off ratio and high cycling stability, can be synthesized with a wide range of salts and customizable conductivity/temperature relations for applications in ionotronics and energy storage ...
Yi‐ming Yuan, Thomas B. H. Schroeder
wiley   +1 more source

GENERALIZED HEDGE RATIO ESTIMATION WITH AN UNKNOWN MODEL [PDF]

open access: yes
Myers and Thompson (1989) pioneered the concept of a generalized approach to estimating hedge ratios, pointing out that the model specification could have a large impact on the hedge ratio estimated. While a huge empirical literature exists on estimating
Dorfman, Jeffrey H., Sanders, Dwight R.
core   +1 more source

An Empirical Analysis of Dynamic Multiscale Hedging using Wavelet Decomposition [PDF]

open access: yes, 2011
This paper investigates the hedging effectiveness of a dynamic moving window OLS hedging model, formed using wavelet decomposed time-series. The wavelet transform is applied to calculate the appropriate dynamic minimum-variance hedge ratio for various ...
Benet   +29 more
core   +3 more sources

Microenvironment Modulation‐Based Nanomaterial‐Loaded Hydrogel Dressings for Diabetic Foot Ulcers: Research Progress and Future Perspectives

open access: yesAdvanced Materials Interfaces, EarlyView.
xx xx. ABSTRACT Diabetic foot ulcer (DFU) is a chronic complication of diabetes, primarily caused by hyperglycemia, peripheral vascular disease, and neuropathy. Characterized by persistent hyperglycemia, impaired perfusion, inflammation, and infection, DFUs pose significant challenges to healing and are associated with high morbidity and amputation ...
Tang Yuqing   +5 more
wiley   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira   +5 more
wiley   +1 more source

Time-Varying Hedge Ratios: An Application to the Indian Stock Futures Market [PDF]

open access: yes
Using different unconditional and conditional versions of the bivariate BEKK-GARCH model of Engle and Kroner, we calculate time-varying hedge ratios for Indian stock futures market involving a cross-section of seven firms across a spectrum of industries.
Gerard Gannon   +2 more
core  

Absicherung von Strompreisrisiken mit Futures: Theorie und Empirie [PDF]

open access: yes, 2005
The regulatory changes in the german electric power market result in rising electricity price volatility. As a consequence electricity price risk management is essential for an electricity trader. The paper therefore analyzes the needed volume of futures
Rodt, Marc, Schäfer, Klaus
core  

Notes on Alpha Stream Optimization [PDF]

open access: yes, 2015
In these notes we discuss investment allocation to multiple alpha streams traded on the same execution platform, including when trades are crossed internally resulting in turnover reduction.
Kakushadze, Zura
core   +1 more source

High‐Throughput 3D Matrigel‐based Droplet Microfluidics for Single‐Cell Function‐to‐Omics Analysis of Cytotoxic Immune Cells in Solid Tumor Interactions

open access: yesAdvanced Materials Technologies, EarlyView.
A 3D Matrigel‐based droplet microfluidics platform that allows physiologically relevant analysis of single immune‐tumor interactions in solid tumors. By integrating real‐time functional imaging with fluorescence‐activated droplet sorting and RNA sequencing, the system links immune cytotoxic behavior to transcriptomic profiles, providing a scalable ...
Christina Sharkey   +6 more
wiley   +1 more source

Absicherung von Strompreisrisiken mit Futures: Theorie und Empirie [PDF]

open access: yes
The regulatory changes in the german electric power market result in rising electricity price volatility. As a consequence electricity price risk management is essential for an electricity trader. The paper therefore analyzes the needed volume of futures
Rodt, Marc, Schäfer, Klaus
core  

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