Results 141 to 150 of about 4,616,379 (323)

Smart Bioinks for 4D Bioprinting: Requirements, Design, and Applications

Advanced Science, EarlyView.
Smart bioinks empower 4D‐bioprinted constructs to dynamically adapt and remodel in response to stimuli, effectively biomimicking native tissues. Artificial Intelligence (AI) and Machine Learning (ML) play a guiding role in their rational design by optimizing relevant properties.
Shangsi Chen, Jiahui Lai, Qiongjiao Zeng, Liangbin Zhou, Boguang Yang, Bin Zhang, Min Wang, Jiajing Zhou, Kieran Lau, Khoon S. Lim, Zhong Alan Li, Rocky S. Tuan   +11 more
wiley   +1 more source

A pointwise Poisson approximation for independent binomial random variables

Applied Mathematical Sciences, 2015
This paper uses the Stein-Chen method and the binomial w-functions to derive a non-uniform bound for the point metric between the distribution of a sum of independent binomial random variables, each with parameters mi and pi, and a Poisson distribution with mean P n=1 mipi. In view of this bound, the Poisson distribution can be used as an approximation
openaire   +1 more source

ROS/pH‐Responsive Phenylboronic Acid–Chitosan Nanoparticles Improve Silymarin‐Mediated Hepatoprotection After Hepatectomy With Gut‐Liver Axis‐Associated Responses

Advanced Science, EarlyView.
Bioactive phenylboronic acid–chitosan nanoparticles enable responsive silymarin delivery for post‐hepatectomy liver protection. The nanoplatform integrates antioxidant and antibacterial functions, improves hepatic recovery, and is associated with coordinated shifts in gut microbiota, metabolites, cytokines, and hepatic proteomic pathways, suggesting a ...
Jinjin Tong, Chaochao Luo, Zezheng Liu, Xinyan Zhang, Daixu Jia, Yang Sun, Zhaonan Zhang, Haoran Shi, Jianfang Wang, Hua Zhang   +9 more
wiley   +1 more source

Retrospective Grid Cells in the Medial Entorhinal Cortex Encode Past Paths During Spatial Navigation

Advanced Science, EarlyView.
Retrospective grid cells are identified in the medial entorhinal cortex, with spatial firing patterns that become most grid‐like when activity is projected onto recently traversed locations. Their coding loses spatial precision in darkness and is disrupted during assisted movement, indicating that entorhinal representations incorporate recent path ...
Ruojin Liu, Xin Yuan, Zilong He, Hong Jin, Jiayi Tian, Cong Chen, Yuanjing Liu, Xiang Zhang, Shidan Wen, Emilio Kropff, Chenglin Miao   +10 more
wiley   +1 more source

Optimal Weights for a Vector of Independent Poisson Random Variables

Communications for Statistical Applications and Methods, 2002
Suppose one is given a vector X of a finite set of quantities X_i which are independent Poisson random variables. A null hypothesis H_0 about E(X) is to be tested against an alternative hypothesis H_1. A quantity Σ_iw_ix_i is to be computed and used for the test.
openaire   +2 more sources

Zinc Fingers as Programmable Metalloprotein Scaffolds for Altering Pathogenic Biomolecular Phase Transitions

Advanced Science, EarlyView.
Modular zinc finger (ZF) metalloproteins function as programmable biomolecular scaffolds that modulate pathogenic amyloid assembly. Through direct protein–protein interactions, ZF arrays alter amyloid phase behavior and redirect β‐sheet fibrillization toward nontoxic aggregates.
Seongmin Park, Yunha Hwang, Jimin Kwak, Yuxi Lin, Hye‐Yeon Park, Eunju Nam, Jiyeon Han, Soyeon Park, Hyunyong Kim, Ju‐Eun Kim, Hyun Goo Kang, Jiyong Park, Young‐Ho Lee, Kyoung‐Shim Kim, Chul‐Ho Lee, Seung Jae Lee, Mi Hee Lim   +16 more
wiley   +1 more source

A Robust Bio‐Supportive Hydrogel Patch for Full‐Thickness Repair of Gastroesophageal Defects

Advanced Science, EarlyView.
Gastroesophageal defect repair remains a formidable clinical challenge plagued by high leakage and life‐threatening complications. We develop a double‐disc, highly crystalline PVA‐based RBS hydrogel patch featuring suture‐free sealing, robust acid/enzyme resistance and mechanical durability.
Xingqi Song, Zhewei Shuai, Weiyan Sun, Liang Chen, Yiwei Shen, Jiateng Hu, Yuanqi Ma, Jie Luo, Meilin Huang, Yan Luo, Yunlang She, Guangdong Zhou, Chang Chen, Dong Lei   +13 more
wiley   +1 more source

Machine Learning Potential for Calcium Silicate Hydrates With Broad Compositional and Structural Diversity

Advanced Science, EarlyView.
Existing machine learning potentials remain limited in their ability to generalize across the broad chemical and structural variability of C–S–H. Here, a representative DFT‐labeled dataset is constructed through large‐scale model generation, redundancy‐controlled screening, first‐principles optimization, and targeted sampling of non‐equilibrium ...
Yunjian Li, Cheng Chen, Roland J.‐M. Pellenq, Zongjin Li, Jiaping Liu   +4 more
wiley   +1 more source

Hierarchical Generalized Linear Models: The R Package HGLMMM

Journal of Statistical Software, 2011
The R package HGLMMM has been developed to fit generalized linear models with random effects using the h-likelihood approach. The response variable is allowed to follow a binomial, Poisson, Gaussian or gamma distribution.
Marek Molas, Emmanuel Lesaffre
doaj  

Modeling Rollover Crash Risks: The Influence of Road Infrastructure and Traffic Stream Characteristics

Infrastructures
Rollover crashes are among the most prevalent types of accidents in developing countries. Various factors may contribute to the occurrence of rollover crashes. However, limited studies have simultaneously investigated both traffic stream and road-related
Abolfazl Khishdari, Hamid Mirzahossein, Xia Jin, Shahriar Afandizadeh   +3 more
doaj   +1 more source