Results 41 to 50 of about 105,964 (266)

Uniform Bahadur Representation for Nonparametric Censored Quantile Regression: A Redistribution-of-Mass Approach [PDF]

open access: yes, 2016
Censored quantile regressions have received a great deal of attention in the literature. In a linear setup, recent research has found that an estimator based on the idea of “redistribution-of-mass” in Efron (1967, Proceedings of the Fifth Berkeley ...
Kong, Efang, Xia, Yingcun
core   +1 more source

What Is the Spectral Theory of Random Fields? [PDF]

open access: yes
We review the current state of the spectral theory of random functions of several variables created by Professor M. I. Yadrenko at the end of 1950s. It turns out that the spectral expansions of multi-dimensional homogeneous and isotropic random fields ...
Malyarenko, Anatoliy,
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A Generalized Relative (α, β)-Entropy: Geometric Properties and Applications to Robust Statistical Inference

open access: yesEntropy, 2018
Entropy and relative entropy measures play a crucial role in mathematical information theory. The relative entropies are also widely used in statistics under the name of divergence measures which link these two fields of science through the minimum ...
Abhik Ghosh, Ayanendranath Basu
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

The TU Wien turbulent water channel: measurements and statistics [PDF]

open access: yes, 2021
The statistical properties of a turbulent duct flow are investigated experimentally. Experiments are performed in the TU Wien Turbulent Water Channel at a shear Reynolds number of 370.
Giurgiu, Vlad
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

An Analog-Digital Hardware for Parzen-Based Nonparametric Probability Density Estimation

open access: yesIEEE Access
Probability estimation measures the likelihood of different outcomes in a statistical context. It commonly involves estimating either the parameters or the entire distribution of a random variable.
Djordje Stankovic   +4 more
doaj   +1 more source

ENHANCING RURAL LIVELIHOODS THROUGH SUSTAINABLE LAND AND WATER MANAGEMENT IN NORTHWEST ETHIOPIA

open access: yesGeography, Environment, Sustainability, 2015
Rural livelihoods (RLs) in highland Ethiopia is critically threatened by increasing degradation of land and water resources (LWRs) and lack of sufficient livelihood assets.
Mehretie Belay, Woldeamlak Bewket
doaj   +1 more source

Statistics of gradient directions in natural images. [PDF]

open access: yes, 2007
Interest in finding statistical regularities in natural images has been growing since the advent of information theory and the advancement of the efficient coding hypothesis that the human visual system is optimised to encode natural visual stimuli.
Nasrallah, A.J.   +1 more
core  

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