Results 11 to 20 of about 1,161,301 (313)

Combining national survey with facility-based HIV testing data to obtain more accurate estimate of HIV prevalence in districts in Uganda

open access: yesBMC Public Health, 2020
Background National or regional population-based HIV prevalence surveys have small sample sizes at district or sub-district levels; this leads to wide confidence intervals when estimating HIV prevalence at district level for programme monitoring and ...
Joseph Ouma   +5 more
doaj   +1 more source

Comparison of HIV Prevalence Estimates from Antenatal Care Surveillance and Population-Based Surveys in Sub-Saharan Africa [PDF]

open access: yes, 2008
\ud In countries with generalized epidemics, national estimates of HIV prevalence levels and trends in the adult population are generally derived indirectly from surveillance of pregnant women attending selected antenatal care (ANC) clinics.
Mishra, Vinod   +7 more
core   +1 more source

Comparing Interval Estimates for Small Sample Ordinal CFA Models

open access: yesFrontiers in Psychology, 2015
Robust maximum likelihood (RML) and asymptotically generalized least squares (AGLS) methods have been recommended for fitting ordinal structural equation models. Studies show that some of these methods underestimate standard errors.
Prathiba eNatesan
doaj   +1 more source

Small Area Estimation of Postfire Tree Density Using Continuous Forest Inventory Data

open access: yesFrontiers in Forests and Global Change, 2021
Wildfire activity in the western United States is expanding and many western forests are struggling to regenerate postfire. Accurate estimates of forest regeneration following wildfire are critical for postfire forest management planning and monitoring ...
George C. Gaines, David L. R. Affleck
doaj   +1 more source

Parameter estimates (standard errors) for dataset 1.

open access: yes, 2023
Parameter estimates (standard errors) for dataset 1.
Egemen Ozkan (14445327)   +1 more
core   +1 more source

On spatial behavior of the solution of a non-standard problem in linear thermoviscoelasticity with voids

open access: yesArchives of Mechanics, 2015
In this paper we study the constrained motion of a prismatic cylinder made of a thermoviscoelastic material with voids and subjected to final given data that are proportional, but not identical, to their initial values.
A. Bucur
doaj   +1 more source

Impact of Amplification Efficiency Approaches on Telomere Length Measurement via Quantitative-Polymerase Chain Reaction

open access: yesFrontiers in Genetics, 2021
Background: Precise determination of amplification efficiency is critical for reliable conversion of within-sample changes in fluorescence occurring on a logarithmic scale to between-sample differences in DNA content occurring on a linear scale.
Waylon J. Hastings   +2 more
doaj   +1 more source

On parameter estimation of the standard omega distribution

open access: yesJournal of Applied Statistics, 2022
The standard omega distribution is defined on the unit interval so that it is a probabilistic model for observations in rates and percentages. It is, in fact, the unit form of the exponentiated half logistic distribution. In this work, we first give a detailed shape analysis from which we observe that it is another flexible beta-like distribution.
İsmet Birbiçer, Ali İ. Genç
openaire   +2 more sources

Parameter estimates (standard errors) for dataset 3.

open access: yes, 2023
Parameter estimates (standard errors) for dataset 3.
Egemen Ozkan (14445327)   +1 more
core   +1 more source

Classical and model based estimators for forest inventory.

open access: yesSilva Fennica, 1994
In this study, model-based and design-based inference methods are used for estimating mean volume and its standard error for systematic cluster sampling. Results obtained with models are compared to results obtained with classical methods.
Kangas, Annika
doaj   +1 more source

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