Results 31 to 40 of about 148,106 (212)

Solving Non-Linear Estimation Equations

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1993
SUMMARY In this paper we consider the numerical computation of a vector parameter estimate θ^ which is a root of a system of unbiased non-linear estimation equations. A sequence {θ  (r)} is constructed which converges with a probability approaching 1 to θ^ from any starting value θ  (0).
openaire   +2 more sources

Influence of iodine intake on thyroid volume among students aged 8–10 years in a district of Beijing from 2022 to 2024 based on a generalized estimating equation model

Zhongguo gonggong weisheng
ObjectiveTo assess iodine intake levels and their impact on thyroid volume in children aged 8–10 years in a district of Beijing city from 2022 to 2024.
Zhilin WU, Yubin ZHANG, Chao HE, Wenzeng ZHANG   +3 more
doaj   +1 more source

Prevalence of diabetes and prediabetes among working-age adults and influencing factors of new-onset diabetes: a five-year cohort study (2018–2023)

Frontiers in Endocrinology
BackgroundDiabetes and prediabetes in the young and middle-aged population represent a significant public health challenge in China. In recent years, the prevalence of diabetes has gradually increased within this group.
Jing Tan, Mingzhu Chen, Yang Lei, Xiaofen Shi, Cuiping Cao, Naili Du, Yuyou Yao, Xiaojuan Yao   +7 more
doaj   +1 more source

Determining glomerular filtration rate in homozygous sickle cell disease: utility of serum creatinine based estimating equations.

PLoS ONE, 2013
BackgroundVarious estimating equations have been developed to estimate glomerular filtration rate (GFR) for use in clinical practice. However, the unique renal physiological and pathological processes that occur in sickle cell disease (SCD) may ...
Monika R Asnani, O'Neil Lynch, Marvin E Reid   +2 more
doaj   +1 more source

Improved allometric equations for tree aboveground biomass estimation in tropical dipterocarp forests of Kalimantan, Indonesia

Forest Ecosystems, 2016
Background Currently, the common and feasible way to estimate the most accurate forest biomass requires ground measurements and allometric models. Previous studies have been conducted on allometric equations development for estimating tree aboveground ...
Solichin Manuri, Cris Brack, Fatmi Noor’an, Teddy Rusolono, Shema Mukti Anggraini, Helmut Dotzauer, Indra Kumara   +6 more
doaj   +1 more source

Factors associated with mortality from tuberculosis in Iran: an application of a generalized estimating equation-based zero-inflated negative binomial model to national registry data [PDF]

Epidemiology and Health, 2019
OBJECTIVES Tuberculosis (TB) is a global public health problem that causes morbidity and mortality in millions of people per year. The purpose of this study was to examine the relationship of potential risk factors with TB mortality in Iran. METHODS This
Fatemeh Sarvi, Abbas Moghimbeigi, Hossein Mahjub, Mahshid Nasehi, Mahmoud Khodadost   +4 more
doaj   +1 more source

Anthropometric predictive equations for estimating body composition

Advanced Biomedical Research, 2015
Background: Precise and accurate measurements of body composition are useful in achieving a greater understanding of human energy metabolism in physiology and in different clinical conditions, such as, cardiovascular disease and overall mortality.
Mohammad Reza Salamat, Ahmad Shanei, Amir Hossein Salamat, Mehri Khoshhali, Mahdi Asgari   +4 more
doaj   +1 more source

Operator error estimates for homogenization of the nonstationary Schrödinger-type equations: sharpness of the results [PDF]

, 2021
Mark Dorodnyi
openalex   +1 more source

Development of gender- and age group-specific equations for estimating body weight from anthropometric measurement in Thai adults

International Journal of General Medicine, 2012
Kaweesak Chittawatanarat1,2, Sakda Pruenglampoo3, Vibul Trakulhoon4, Winai Ungpinitpong5, Jayanton Patumanond21Department of Surgery, Faculty of Medicine, 2Clinical Epidemiology Unit, 3Research Institute for Health Sciences, Chiang Mai University, Chiang
Chittawatanarat K, Pruenglampoo S, Trakulhoon V, Ungpinitpong W, Patumanond J   +4 more
doaj  

Estimating equations for biomarker based exposure estimation under non-steady-state conditions

Environmental Health, 2011
Unrealistic steady-state assumptions are often used to estimate toxicant exposure rates from biomarkers. A biomarker may instead be modeled as a weighted sum of historical time-varying exposures. Estimating equations are derived for a zero-inflated gamma
Bartell Scott M, Johnson Wesley O
doaj   +1 more source