Results 181 to 190 of about 310,979 (266)

Reproducibility and validity of a food frequency questionnaire among residents in the Pearl River Delta, South China. [PDF]

Medicine (Baltimore)
Zhang Y, Ren MX, Zhang Q, Cui YH, Deng YJ, Li G, Feng H, Wang XB, Xu YX, Xiao SM.   +9 more
europepmc   +1 more source

Misuse of coefficient of determination for empirical validation of models

International Congress on Modelling and Simulation, 2017
openaire   +1 more source

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

Advanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos, Seungjoo Lee, Cagatay Yelkarasi, Leonardo I. Farfan‐Cabrera, Ryuichi Okamoto, Hitoshi Washizu, Ali Erdemir   +6 more
wiley   +1 more source

Turkish validity and reliability study of Self-Blame Attributions for Cancer Scale: A methodological study. [PDF]

Palliat Support Care
Bahçecioğlu Turan G, Demir N, Özer Z.
europepmc   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Development of a food security assessment tool for prenatal care in pregnant women: a mixed-method study. [PDF]

Reprod Health
Bagheri M, Mohammadi-Nasrabadi F, Sadighi J, Ahmadi F, Akbarzadeh M, Lamyian M.   +5 more
europepmc   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

Advanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding, Danny E. P. Vanpoucke, Yunus T. Aksoy, Tobias Corthouts, Maria R. Vetrano, Wim Deferme   +5 more
wiley   +1 more source

Psychometric evaluation of a four-item scale derived from the PHQ-9 and GAD-7 among community adults based on multivariate generalizability theory and item response theory. [PDF]

Front Psychol
Cheng N, Song C, Chen Y, Wang J, Tang W, He S, Men D, Huang J, Zhao W, Yin J, Meng Q.   +10 more
europepmc   +1 more source

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

Advanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee, Rafael R. Del Grande, Yeonjoo Lee, Jinkyoung Yoo, Azza Ben‐Akacha, Biwu Ma, Michael T. Pettes, David A. Strubbe   +7 more
wiley   +1 more source

Beyond the Label: Psychometric Validation of the Persian Stigma and Self-Stigma Scales: A Methodological Study. [PDF]

Health Sci Rep
Tehrani H, Jafari A, Nejatian M, Gholamzadeh M, Naddafi F.   +4 more
europepmc   +1 more source