Results 21 to 30 of about 16,137,556 (298)

Using re-sampling methods in mortality studies. [PDF]

open access: yesPLoS ONE, 2010
Traditional methods of computing standardized mortality ratios (SMR) in mortality studies rely upon a number of conventional statistical propositions to estimate confidence intervals for obtained values.
Igor Itskovich, Brad Roudebush
doaj   +1 more source

Exact methods for comparison of estimation strategies in survey sampling. [PDF]

open access: yes, 2010
PhDMany strategies in survey sampling depend on large sample approximation formulae for design-based inference on finite population parameters, which are not valid for small samples. We develop an approach using matrix algebra to tackle many problems
Khan, Kaleem Uddin
core   +4 more sources

An Optimized Active Sampling Procedure for Aerobiological DNA Studies

open access: yesSensors, 2023
The Earth’s atmosphere plays a critical role in transporting and dispersing biological aerosols. Nevertheless, the amount of microbial biomass in suspension in the air is so low that it is extremely difficult to monitor the changes over time in these ...
Jyothi Basapathi Raghavendra   +3 more
doaj   +1 more source

Acceptability of unsupervised HPV self-sampling using written instructions [PDF]

open access: yes, 2006
Objectives The study measured the acceptability of self-sampling for human papillomavirus (HPV) testing in the context of cervical cancer screening. Women carried out self-sampling unsupervised, using a written instruction sheet.Setting Participants were
J Austin   +13 more
core   +1 more source

Designing a Longitudinal Survey on the Development of Iranian Children and Adolescents

open access: yesتحقیقات نظام سلامت, 2021
Background: Investigating the effect of environmental factors, such as parental guidance and upbringing, on the individuals’ growth during their childhood and adolescence requires a long-term longitudinal study.
Zahra Rezaei-Ghahroodi   +4 more
doaj  

Sampling Methods in Clinical Research; an Educational Review

open access: yesArchives of Academic Emergency Medicine, 2017
Clinical research usually involves patients with a certain disease or a condition. The generalizability of clinical research findings is based on multiple factors related to the internal and external validity of the research methods.
Mohamed Elfil, Ahmed Negida
doaj   +1 more source

Sampling time-dependent artifacts in single-cell genomics studies

open access: yesGenome Biology, 2020
Robust protocols and automation now enable large-scale single-cell RNA and ATAC sequencing experiments and their application on biobank and clinical cohorts.
Ramon Massoni-Badosa   +15 more
doaj   +1 more source

Sample size in usability studies [PDF]

open access: yesCommunications of the ACM, 2012
Magic numbers are strictly hocus-pocus, so usability studies must test many more subjects than is usually assumed.
openaire   +2 more sources

Sampling Methods in Clinical Research; an Educational Review

open access: yesEmergency, 2016
Clinical research usually involves patients with a certain disease or a condition. The generalizability of clinical research findings is based on multiple factors related to the internal and external validity of the research methods.
Mohamed Elfil, Ahmed Negida
doaj   +1 more source

Reluctance and willingness for organ donation after death among the Slovene general population

open access: yesSlovenian Journal of Public Health, 2019
The paper presents the findings of the first large-scale survey on post-mortem organ donation among the general Slovenian population. It focuses on the reported donation willingness, the barriers to joining the register of organ donors and the position ...
Berzelak Nejc, Avsec Danica, Kamin Tanja
doaj   +1 more source

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