Results 81 to 90 of about 166,390 (310)

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

open access: yesForest 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   +6 more
doaj   +1 more source

Time-Invariance Estimating Equations [PDF]

open access: yesBernoulli, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Anthropometric predictive equations for estimating body composition

open access: yesAdvanced 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   +4 more
doaj   +1 more source

Asymptotic Results with Generalized Estimating Equations for Longitudinal data II [PDF]

open access: yes
We consider the marginal models of Liang and Zeger (1986) for the analysis of longitudinal data and we develop a theory of statistical inference for such models.
Ioana Schiopu-Kratina, R. M. Balan
core  

Discussion of "Generalized Estimating Equations: Notes on the Choice of the Working Correlation Matrix"

open access: yes, 2010
Objective: To discuss generalized estimating equations as an extension of generalized linear models by commenting on the paper of Ziegler and Vens "Generalized Estimating Equations. Notes on the Choice of the Working Correlation Matrix".
Chaganty, N.R.   +22 more
core   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Domain-specific and total sedentary behaviors associated with psychological distress in older adults

open access: yesPsychology Research and Behavior Management, 2019
Lovro Štefan,1 Mario Baić,2 Goran Sporiš,1 Damir Pekas,2 Nikola Starčević21Faculty of Kinesiology, Department of General and Applied Kinesiology, University of Zagreb, Zagreb, Croatia; 2Faculty of Kinesiology, Department of Sport ...
Štefan L   +4 more
doaj  

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

open access: yesEnvironmental 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

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