Results 121 to 130 of about 15,148 (305)

Predicting Relative Returns

open access: yes, 2017
Across a variety of asset classes, we show that relative returns are highly predictable in the time series in and out of sample, much more so than aggregate returns. For Treasuries, slope is more predictable than level. For equities, dominant principal components of anomaly long-short strategies are more predictable than the market.
Valentin Haddad   +2 more
openaire   +1 more source

Stem Cell Differentiation Disperses Transcriptional Clusters via a Conserved Surface‐Condensate Trajectory

open access: yesAdvanced Science, EarlyView.
Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg   +18 more
wiley   +1 more source

Is the predictability of emerging and developed stock markets really exploitable?. [PDF]

open access: yes
A number of recent papers have analyzed the degree of predictability of stock markets. In this paper, we firstly study whether this predictability is really exploitable and secondly, if the economic significance of predictability is higher or lower in ...
Olmeda, Ignacio, Moreno, David
core  

Enhancing Electrical Impedance Based Deformation Sensing with Dielectric Current Guide

open access: yesAdvanced Electronic Materials, EarlyView.
This work introduces a dielectric‐based field manipulation strategy for electrical impedance tomography in soft robotics. By using silicone as a passive electric field guide, improved deformation sensing accuracy and reduced interference are achieved without embedding conductive components.
Arsen Abdulali   +3 more
wiley   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Crude Oil Prices Forecasting in the Energy Transition Era: Evidence from Geopolitical and Technological Drivers

open access: yesEnergies
This study examines crude oil return dynamics in the context of the global energy transition, where decarbonization policies, technological innovation, and shifting energy demand increasingly influence market behavior.
Asaad Sendi   +3 more
doaj   +1 more source

2D Materials Empowered Radar Absorbing Materials: A Review

open access: yesAdvanced Electronic Materials, EarlyView.
Recent progress in 2D materials empowered radar absorbing materials (RAMs) is reviewed, highlighting four key structural design strategies that enhance electromagnetic wave absorption. Porous structures, heterogeneous interfaces, printed metamaterials, and tunable metasurfaces are compared in terms of their governing physics, fabrication complexity ...
Yujie Zhong   +4 more
wiley   +1 more source

Short-term returns and the predictability of Finnish stock returns

open access: yes
The predictability of Finnish stock returns is studied using the framework of Ferson and Harvey (1993). We use a conditional asset pricing model where risk premia and risk sensitivities are conditioned on a range of financial information variables.
Vaihekoski, Mika
core  

Heterogeneous Knitted Fabrics for 3D Flexible Capacitive Sensors With Enhanced Sensitivity and Durability

open access: yesAdvanced Electronic Materials, EarlyView.
A breathable textile capacitive pressure sensor based on heterogeneous double‐sided conductive knitted fabrics and a spacer dielectric layer is developed. Structural tuning of the spacer thickness enables optimized compressibility and enhanced pressure sensitivity.
Wei Ke   +6 more
wiley   +1 more source

Bitcoin Market Efficiency Analysis Pre- and Post-COVID-19 Pandemic: An Interrupted Time Series and ARIMAX Approach

open access: yesEconomies
The COVID-19 pandemic constitutes one of the most significant exogenous shocks to global financial markets in recent history, raising questions about the robustness of market efficiency under extreme uncertainty.
Tendai Makoni   +2 more
doaj   +1 more source

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