Results 171 to 180 of about 91,920 (292)

Chemometric Assisted UV-Spectrophotometric Methods Using Multivariate Curve Resolution Alternating Least Squares and Partial Least Squares Regression for Determination of Beta-Antagonists in Formulated Products: Evaluation of the Ecological Impact. [PDF]

Molecules, 2022
Mostafa A, Shaaban H.
europepmc   +1 more source

Estimation and inference in unstable nonlinear least squares models

In this paper, we extend Bai and Perron's (1998, Econometrica, pp. 47-78) method for detecting multiple breaks to nonlinear models. To that end, we consider a nonlinear model that can be estimated via nonlinear least squares (NLS) and features a limited ...
Hall, Alastair R., Boldea, Otilia
core  

Quantile Regression in Risk Calibration [PDF]

Financial risk control has always been challenging and becomes now an even harder problem as joint extreme events occur more frequently. For decision makers and government regulators, it is therefore important to obtain accurate information on the ...
Wolfgang Karl Härdle, Shih-Kang Chao, Weining Wang   +2 more
core  

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

Advanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera, Chiranjeevi Kanike, Appurva Tiwari, Hongyan Wu, Larry D. Unsworth, Ben Bin Xu, Xuehua Zhang   +6 more
wiley   +1 more source

Identifying influencing factors associated with sleep quality in undergraduates based on partial least squares regression and XGBoost. [PDF]

Front Psychol
Xie Y, Chen Y, Han Y, Zhai S, Xiao L, Yin D, Chen Y.   +6 more
europepmc   +1 more source

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

Advanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang, Henry Robert Howard, Shihui Chen, Won‐Young Choi, Summer Cao, Arthur Chien, Kevin Zou, Michael Kassiou, Fabien Delerue, Ho Sang Jung, Yeonju Park, Young Mee Jung, Yong‐Dae Kwon, Karrie M. Kiang, Gilberto Ka‐Kit Leung, Ryohichi Sugimura, Ann‐Na Cho, Sang Jin Lee   +17 more
wiley   +1 more source

Simultaneous photoacoustic detection of coal spontaneous combustion indicator gases using single laser and absorption feature selection-optimized partial least squares regression. [PDF]

Photoacoustics
Zhang L, Mou Z, Liu L, Huan H, Zhang X, Wang Y, Zhang W, Liang Y, Xu H, Ma Y, Mandelis A.   +10 more
europepmc   +1 more source

High-concentration methane and ethane QEPAS detection employing partial least squares regression to filter out energy relaxation dependence on gas matrix composition. [PDF]

Photoacoustics, 2022
Menduni G, Zifarelli A, Sampaolo A, Patimisco P, Giglio M, Amoroso N, Wu H, Dong L, Bellotti R, Spagnolo V.   +9 more
europepmc   +1 more source

Physicochemical Reinforcement Unlocks Sterilization‐Stable Anisotropic Hydrogels for Cell‐Compatible Mock Arteries

Advanced Healthcare Materials, EarlyView.
ABSTRACT In vitro arterial models offer ethical and robust alternatives for vascular research but require cytocompatible materials that replicate physiological mechanics. Poly(vinyl alcohol) (PVA) hydrogels produced by directional freezing and salting‐out (PVA DFSO) are anisotropic yet lack stability for cell culture. Herein, methacrylated PVA (PVA‐MA)
Javiera Sanhueza Ortega, Kirthen Shanmuganathan, Laura Poole‐Warren, Susann Beier, Ulises Aregueta Robles   +4 more
wiley   +1 more source

Determining Olefin Content of Gasoline by Adaptive Partial Least Squares Regression Combined with Near-Infrared Spectroscopy. [PDF]

Molecules
Du B, Yuan H, Hao L, Wu Y, He C, Wang Q, Chen C.   +6 more
europepmc   +1 more source