Results 141 to 150 of about 1,520,998 (360)

The Matrix Ridge Approximation: Algorithms and Applications [PDF]

, 2013
We are concerned with an approximation problem for a symmetric positive semidefinite matrix due to motivation from a class of nonlinear machine learning methods. We discuss an approximation approach that we call {matrix ridge approximation}.
Zhang, Zhihua
core  

The mediating role of biological age in the impact of mood instability symptoms on neurodegenerative disease and mortality

BMC Medicine
Background Accumulating evidence links mood instability to an increased risk of adverse outcomes, yet its relationship with neurodegenerative diseases remains underexplored.
Junru Wang, Jiahui Zhang, Kai Liu, Jing Wang, Yali Wang, Xiaojun Ma, Zhuoyuan Li, Shulan He, Xiaojuan Liu, Ping Chen, Jiangping Li   +10 more
doaj   +1 more source

Measurement Invariance and Differential Item Functioning in Latent Class Analysis With Stepwise Multiple Indicator Multiple Cause Modeling

, 2017
The use of latent class analysis, and finite mixture modeling more generally, has become almost commonplace in social and health science domains. Typically, research aims in mixture model applications include investigating predictors and distal outcomes ...
Katherine E. Masyn
semanticscholar   +1 more source

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

Advanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Attribute processing in environmental choice analysis: implications for willingness to pay [PDF]

Data from a discrete choice experiment is used to investigate the implications of failing to account for attribute processing strategies (APSs). The research was designed to elicit the economic benefits associated with landscape restoration activities ...
Aravena, Claudia, Campbell, Danny, Hutchinson, W. George, Lorimer, Victoria   +3 more
core   +1 more source

Latent Class Modeling and Typological Analysis [PDF]

, 1991
Series: Discussion Papers of the Institute for Economic Geography and ...
Ernste, Huib, Fischer, Manfred M.
core  

Latent class of depressive symptoms of and its determinants: A cross-sectional study among Iranian University students

Journal of Research in Medical Sciences
Background: According to the report of the World Health Organization, mental disorders are one of the 10 most important causes of disability in the world.
Forugh Aleebrahim, Zahra Heidari, Shahla Yousefnejad, Gholamreza Kheirabadi, Mohammad Javad Tarrahi   +4 more
doaj   +1 more source

From Bug to Feature: Harnessing Cross‐Sensitivity for Multiparametric Luminescence Sensing

Advanced Functional Materials, EarlyView.
Cross‐sensitivity in luminescence sensing is reframed from a limitation into a resource for multiparametric detection. Using ruby microspheres as a model system, cross‐sensitivity is quantitatively assessed and exploited through linear discriminant analysis, enabling simultaneous, correction‐free pressure and temperature sensing with a single ...
Nikita Panov, Liyan Ming, Stanislav Sinogeikin, Erving Ximendes, Daniel Jaque, Riccardo Marin   +5 more
wiley   +1 more source

Generalized latent class modeling using gllamm [PDF]

gllamm can estimate both conventional and unconventional latent class models. Models are specified using discrete latent variables whose values determine the conditional response distributions for the classes. A new feature of gllamm is that latent class
Anders Skrondal, Andrew Pickles, Sophia Rabe-Hesketh   +2 more
core  

Targeting Post‐Irradiation Thyroid Dysfunction: Electrospun Scaffolds As A Dual‐Action Approach for Antioxidant and Immune Modulation

Advanced Healthcare Materials, EarlyView.
Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim, Ella‐Louise Handley, Daniel Grant, Lizi M. Hegarty, Elaine Emmerson, Anthony Callanan   +5 more
wiley   +1 more source