Results 11 to 20 of about 5,269,346 (261)

Super-resolved live-cell imaging using random illumination microscopy

open access: yesCell Reports: Methods, 2021
Summary: Current super-resolution microscopy (SRM) methods suffer from an intrinsic complexity that might curtail their routine use in cell biology. We describe here random illumination microscopy (RIM) for live-cell imaging at super-resolutions matching
Thomas Mangeat   +23 more
doaj   +1 more source

HEDGING (CO)VARIANCE RISK WITH VARIANCE SWAPS [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2008
In this paper, we quantify the impact on the representative agent's welfare of the presence of derivative products spanning covariance risk. In an asset allocation framework with stochastic (co)variances, we allow the agent to invest not only in the stocks but also in the associated variance swaps.
DA FONSECA J   +2 more
openaire   +3 more sources

On Generalized Schürmann Entropy Estimators

open access: yesEntropy, 2022
We present a new class of estimators of Shannon entropy for severely undersampled discrete distributions. It is based on a generalization of an estimator proposed by T.
Peter Grassberger
doaj   +1 more source

Invariances in variance estimates [PDF]

open access: yes, 2011
We provide variants and improvements of the Brascamp-Lieb variance inequality which take into account the invariance properties of the underlying measure.
Barthe, F., Cordero-Erausquin, D.
core   +3 more sources

Variance-of-Variance Risk Premium [PDF]

open access: yesReview of Finance, 2017
Abstract This article explores the premium for bearing the variance risk of the VIX index, called the variance-of-variance risk premium. I find that during the sample period from 2006 until 2014 trading strategies exploiting the difference between the implied and realized variance of the VIX index yield average excess returns of − 24.16%
openaire   +2 more sources

Connections between Weighted Generalized Cumulative Residual Entropy and Variance

open access: yesMathematics, 2020
A shift-dependent information measure is favorable to handle in some specific applied contexts such as mathematical neurobiology and survival analysis. For this reason, the weighted differential entropy has been introduced in the literature.
Abdolsaeed Toomaj, Antonio Di Crescenzo
doaj   +1 more source

Warehouse receipts functioning to reduce market risk [PDF]

open access: yesEkonomika Poljoprivrede (1979), 2014
Cereal production underlies the market risk to a great extent due to its elastic demand. Prices of grain have cyclic movements and significant decline in the harvest periods as a result of insufficient supply and high demand.
Jovičić Daliborka   +3 more
doaj   +1 more source

Analysis of the Distance between the Measured and Assumed Location of a Point Source of Pollution in Groundwater as a Function of the Variance of the Estimation Error

open access: yesHydrology, 2023
The localization of pollution sources is one of the main tasks in environmental engineering. For this paper, models of spatial distribution of nitrate concentration in groundwater were created, and the point of highest concentration was determined.
Ivan Kovač   +3 more
doaj   +1 more source

The Parabolic variance (PVAR), a wavelet variance based on least-square fit [PDF]

open access: yes, 2015
This article introduces the Parabolic Variance (PVAR), a wavelet variance similar to the Allan variance, based on the Linear Regression (LR) of phase data.
Bourgeois, P. -Y.   +3 more
core   +6 more sources

Redundancy, Feedback, and Robustness in the Arabidopsis thaliana BZR/BEH Gene Family

open access: yesFrontiers in Genetics, 2018
Organismal development is remarkably robust, tolerating stochastic errors to produce consistent, so-called canalized adult phenotypes. The mechanistic underpinnings of developmental robustness are poorly understood, but recent studies implicate certain ...
Jennifer Lachowiec   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy