Results 151 to 160 of about 418,048 (310)
Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song +16 more
wiley +1 more source
Market Timing: A Decomposition of Mutual Fund Returns [PDF]
We decompose the conditional expected mutual fund return in ve parts.Two parts, selectivity and expert market timing, can be attributed to manager skill, and three to variation in market exposure that can be achieved by private investors as well.The ...
Sluis, P.J. van der +2 more
core +1 more source
Electro‐Chemo‐Mechanical Coupling in Hf0.5Zr0.5O2 Ferroionic Heterostructures
Schematic of a ferroionic HZO heterostructure where epitaxial interfaces enable dynamic oxygen‐vacancy exchange, coupling ionic and ferroelectric degrees of freedom. Vacancy‐mediated polarization modulation biases HZO polymorphism, suppresses leakage, and enhances piezoelectric response, yielding distinct butterfly‐loop evolution and diode‐like ...
Achilles Bergne +17 more
wiley +1 more source
An Analysis of the US Mutual Funds Sector: What Determines Performance?
This paper analyzes the performance of equity mutual funds in the US, using monthly data for a sample of 4,431 equity mutual funds over the period 1999–2012.
Faisal Mahmood, Ghulame Rubbaniy
doaj
In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez +4 more
wiley +1 more source
Does It Pay to Be Informed? Expenditure Efficiency in the US Mutual Fund Industry
The mutual fund industry would like us to believe that fund expenses are justifiable by their extensive management expertise, security analysis and the consequent delivery of returns that exceed the market performance.
Cerny, Jan
core
Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals
Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser +6 more
wiley +1 more source
THE STUDY OF THE MARKET OF MUTUAL INVESTMENT FUNDS IN THE RUSSIAN FEDERATION
In the work, studies were carried out on the efficiency of the work of mutual open and interval investment funds (PIFs) using the methods proposed by domestic and foreign authors.
Alexander S. Kokin +5 more
doaj
The value of coskewness in mutual fund performance evaluation. [PDF]
Recent asset pricing studies demonstrate the relevance of incorporating coskewness in asset pricing models, and illustrate how this component helps to explain the time variation of ex-ante market risk premiums.
Moreno, David, Rodríguez López, Rosa
core
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley +1 more source

