Results 111 to 120 of about 327,551 (243)

Diagonal distribution of a complex non-central Wishart matrix: A new trivariate non-central chi-squared density

, 2009
This paper derives the joint density of a particular trivariate non-central χ2 distribution corresponding to the diagonal elements of a 3×3 complex non-central Wishart matrix.
McKay, Matthew R., Dharmawansa, Prathapasinghe   +1 more
core   +1 more source

Engineered AuNPs/fMWCNT Nanocomposite Electrodes for High‐Sensitivity Methylglyoxal Sensing in Saliva and Sweat for Non‐Invasive Diabetes Monitoring

Advanced Healthcare Materials, EarlyView.
An AuNPs/fMWCNT nanocomposite‐modified screen‐printed carbon electrode was engineered via sequential electrodeposition and integrated into a 3D‐printed microfluidic platform for ultrasensitive methylglyoxal detection. The non‐invasive sensing platform enables rapid analysis in saliva and sweat, highlighting strong potential for wearable point‐of‐care ...
Ahadul Amin Soshi, Md Younus Ali, Dadbeh Pazuki, Matiar M.R. Howlader   +3 more
wiley   +1 more source

Additional file 12: of Tracing the evolution of the heterotrimeric G protein α subunit in Metazoa

, 2018
Table S3. Significant results of the branch-site model indicate positive selection in the GNAO.1 #1 branch. The result of the likelihood ratio test was compared to a χ2 distribution with following significance levels * 
H. Hamm (5090867), H. Indrischek (5090858), A. Lokits (5090861), J. Meiler (5090870), P. Stadler (5090864)   +4 more
core   +1 more source

Temporal distribution characteristics of crisis calls to Shanghai mental health hotline from 2021 to 2023

Shanghai yufang yixue
ObjectiveTo analyze the temporal distribution characteristics of crisis calls and eight major counseling issues to the Shanghai mental health hotline, and to provide recommendations for improving hotline management.MethodsDescriptive statistics were used
XU Zhengyi, CAI Jun, JIN Jin, LIU Yanli, ZHU Lina, ZHU Yi, ZHANG Weibo   +6 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Distribution and moments in simplified form for a general class of capability indices

, 1997
A class of capability indices, containing the indices Cp, Cpk, Cpm, and Cpmk, has earlier been defined by the author for the case of two-sided specification intervals. By varying the parameters of the class various indices with suitable properties can be
Vännman, Kerstin,
core   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

Score Tests for Fixed Effects and Overdispersion Components in Nonlinear Models for Repeated Measures

, 1995
A general nonlinear regression model for repeated measures data is considered. Neyman′s [16] partial score tests are derived for the significance of regression parameters as well as overdispersion components of the model.
Das, K., Sutradhar, B.C.
core   +1 more source

Distributions of statistics used for the comparison of models of sequence evolution in phylogenetics

, 1999
Asymptotic statistical theory suggests that when two nested models are compared by a likelihood ratio test, a χ2 distribution, with number of degrees of freedom equal to the difference in numbers of free parameters of the two models, can be used for ...
Whelan, Simon, Goldman, Nick
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source