Results 121 to 130 of about 615,565 (289)

Virtual covariance matrix reconstruction-based adaptive beamforming for small aperture array. [PDF]

PLoS One, 2023
Chang L, Zhang H, Yang H, Lv T, Tang N.
europepmc   +1 more source

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

Advanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma, Hanyu Zhao, Haojie Feng, Xulun Dong, Lin Chen, Mingliang Yang, Runyi Chen, Chengjun Lei, Chunyan Liu, Qingshan Chen, Dawei Xin, Jinhui Wang   +11 more
wiley   +1 more source

An Introduction to Shrinkage Estimation of the Covariance Matrix: A Pedagogic Illustration

Spreadsheets in Education, 2011
Shrinkage estimation of the covariance matrix of asset returns was introduced to the finance profession several years ago. Since then, the approach has also received considerable attention in various life science studies, as a remedial measure for ...
Clarence C. Y. Kwan
doaj  

Statistical learning of protein elastic network from positional covariance matrix. [PDF]

Comput Struct Biotechnol J, 2023
Yu CC, Raj N, Chu JW.
europepmc   +1 more source

Robustness Analysis Of Covariances Matrix Estimates

, 2010
Publication in the conference proceedings of EUSIPCO, Aalborg, Denmark ...
Mahot, Mélanie, Forster, Philippe, Ovarlez, Jean-Philippe, Pascal, Frédéric   +3 more
openaire   +3 more sources

Persistently Increased Expression of PKMzeta and Unbiased Gene Expression Profiles Identify Hippocampal Molecular Traces of a Long‐Term Active Place Avoidance Memory and “Shadow” Proteins

Advanced Science, EarlyView.
Protein complexes like KIBRA‐PKMζ are crucial for maintaining memories, forming month‐long protein traces in memory‐tagged neurons, but conventional RNA‐seq analysis fails to detect their transcript changes, leaving memory molecules undetected in the shadows of abundantly‐expressed genes.
Jiyeon Han, Alejandro Grau‐Perales, Rayna M. Harris, Edith Lesburguères, Hsin‐Yi Kao, Asit Pal, Juan Marcos Alarcon, Todd C. Sacktor, Stefano Martiniani, Hans A. Hofmann, André A. Fenton   +10 more
wiley   +1 more source

Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction. [PDF]

Sensors (Basel), 2023
Yao J, Zhao C, Bai J, Ren Y, Wang Y, Miao J.   +5 more
europepmc   +1 more source

Cars2‐Mediated Cysteine Catabolism Drives Brown Fat Development and Thermogenesis Through Persulfidating EBF2

Advanced Science, EarlyView.
We demonstrate that Cars2, a cysteine catabolic enzyme in mouse iBAT, is critical for cold tolerance and brown adipocyte differentiation. Through its CPERS activity, Cars2 produces CysSSH/H2S to induce EBF2 persulfidation, promoting its interaction with PPARγ and BRG1 to enhance thermogenic gene expression.
Xin Peng, Hongyong Song, Yin Long, Kaimin Wu, Yinkun Fu, Wenkai Zhou, Wenyan Li, Zhe Shi, Xu‐Yun Zhao   +8 more
wiley   +1 more source

A New Statistical Method for Determining the Clutter Covariance Matrix in Spatial-Temporal Adaptive Processing of a Radar Signal. [PDF]

Sensors (Basel), 2023
Kawalec A, Ślesicka A, Ślesicki B.
europepmc   +1 more source

Multivariate Realized Stock Market Volatility [PDF]

We present a new matrix-logarithm model of the realized covariance matrix of stock returns. The model uses latent factors which are functions of both lagged volatility and returns. The model has several advantages: it is parsimonious; it does not require
Gregory H. Bauer, Keith Vorkink
core