Results 241 to 250 of about 3,894,475 (297)

Association of sperm DNA fragmentation index with semen quality and ART outcomes: real-world evidence from a retrospective cohort. [PDF]

Basic Clin Androl
Wei C, Liang Q, Liu D, Yu Y, Wei Y, Li Y, Wu H, Lian F.   +7 more
europepmc   +1 more source

Tuberculosis incidence and mortality trends in mainland China, 2004-2024: control program and elimination progress. [PDF]

Trop Med Health
Mu C, Jia Y, Feng M, Zhao Y, Fan S, Li X.   +5 more
europepmc   +1 more source

Global, Regional and National Burden of Pelvic Inflammatory Disease: Trend Projections and Health Inequality Analysis, 1990-2021. [PDF]

Int J Womens Health
Song Q, Jing Z, Shen Z, Li S, Li R, Yang D, Wang M.   +6 more
europepmc   +1 more source

Association of Treadmill Exercise Testing Parameters with PREVENT-Estimated Cardiovascular Risk: A Cross-Sectional Analysis. [PDF]

J Clin Med
Eşki S, Taşkan H, Eravcı Ö, Karaca Ş, Arslan A, Yıldırım E.   +5 more
europepmc   +1 more source

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Regression Rates Study of Mixed Hybrid Propellants

Journal of Propulsion and Power, 2005
The low regression rates of classic hybrid rocket fuels lead to large internal ports that limit potential applications. This experimental study investigated the increase in regression rate that results from adding a solid oxidizer and a catalyst to a hybrid fuel grain.
Robert Frederick, Marlow Moser, Joshua Whitehead, L. Knox   +3 more
openaire   +1 more source

Optimal learning rates for distribution regression

Journal of Complexity, 2020
A learning algorithm is studied for distribution regression with regularized least squares (RLS). The algorithm contains two stages of samples and aims at regressing from distributions to real valued outputs. The first stage sample consists of (unknown) probability distributions \(x_i, i=1,\ldots,l,\) and the second stage sample consists of the data ...
Fang, Zhiying, Guo, Zheng-Chu, Zhou, Ding-Xuan   +2 more
openaire   +1 more source

Hazard Rate Regression Using Ordinary Nonparametric Regression Smoothers

Journal of Computational and Graphical Statistics, 1996
Abstract This article proposes a method for nonparametric estimation of hazard rates as a function of time and possibly multiple covariates. The method is based on dividing the time axis into intervals, and calculating number of event and follow-up time contributions from the different intervals.
openaire   +1 more source