Results 81 to 90 of about 17,207,506 (302)

Comparison of survival analysis approaches to modelling age at first sex among youth in Kisesa Tanzania.

open access: yesPLoS ONE, 2023
BackgroundMany studies analyze sexual and reproductive event data using descriptive life tables. Survival analysis has better power to estimate factors associated with age at first sex (AFS), but proportional hazards models may not be right model to use.
Jacqueline Materu   +5 more
doaj   +1 more source

Beta-Stacy survival regression models [PDF]

open access: yes, 2007
This paper introduces a class of survival models for discrete time-to-event data with random right censoring. Flexible distributions for the survival times are constructed by modelling the random survival functions as discrete-time beta-Stacy processes (
Muliere, Pietro, Rigat, Fabio
core  

On parametric solution of fault detection problems [PDF]

open access: yes, 2011
We discuss the solution of the fault detection problem in presence of parametric uncertainties. The basic approach is an extension of the nullspace method for constant systems to the case of linear parameter varying (LPV) models.
Andras Varga, Varga, A.
core   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Estimating individual tree growth with the k-nearest neighbour and k-Most Similar Neighbour methods

open access: yesSilva Fennica, 2001
The purpose of this study was to examine the use of non-parametric methods in estimating tree level growth models. In non-parametric methods the growth of a tree is predicted as a weighted average of the values of neighbouring observations.
Sironen, Susanna   +3 more
doaj   +1 more source

Fault Localization with Non-parametric Program Behavior Model [PDF]

open access: yes2008 The Eighth International Conference on Quality Software, 2008
Fault localization is a major activity in software debugging. Many existing statistical fault localization techniques compare feature spectra of successful and failed runs. Some approaches, such as SOBER, test the similarity of the feature spectra through parametric self-proposed hypothesis testing models.
Peifeng Hu   +3 more
openaire   +3 more sources

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Un modelo spline para el pronóstico de la demanda de energía eléctrica

open access: yesRevista Colombiana de Estadística, 2007
El propósito de este trabajo es modelar, con fines de pronóstico, la demanda diaria de energía eléctrica en una región del suroccidente colombiano, mediante la implementación de modelos de regresión no paramétrica teniendo en cuenta factores de ...
ANDRÉS FELIPE BARRIENTOS   +2 more
doaj  

Understanding climate change dynamics in the Godavari middle sub-basin using parametric and non-parametric models

open access: yesGeosystems and Geoenvironment
Climate change is considered a long-term change in precipitation, temperature and other meteorological variables. The pattern of meteorological variables is changing due to anthropogenic activities globally. Climate change has posed threat to natural and
Md Masroor, Haroon Sajjad
doaj   +1 more source

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