A universal parameterized gradient‐based method for photon beam field size determination
Sign Up to like & getrecommendations! Published in 2017 at "Medical Physics"
DOI: 10.1002/mp.12573
Abstract: Purpose: To propose a universal, parameterized gradient‐based method (PGM) for radiation field size determination. Methods: The PGM locates the beam profile's edge by parameterizing its penumbra region with a modified sigmoid function where the inflection… read more here.
Keywords: size determination; field size; field; size ... See more keywords
Method for grain size determination in carbon steels based on the ultimate opening
Sign Up to like & getrecommendations! Published in 2019 at "Measurement"
DOI: 10.1016/j.measurement.2018.09.068
Abstract: Abstract To understand mechanical properties in materials, grain size determination plays a fundamental role. Although, several automatic techniques for the determination of grain size have been introduced, nowadays a major drawback is associated with the… read more here.
Keywords: grain size; methodology; size; size determination ... See more keywords
Discussion on the issue of sample size determination for a targeted to an untargeted and to a mixed effect model-based clinical trial design
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Statistics"
DOI: 10.1080/02664763.2017.1405915
Abstract: ABSTRACT More and more studies have shown that genetic determinants may mediate variability among persons in the response to a drug. In other words, some therapeutics benefit only a subset of treated patients. Genomic technologies… read more here.
Keywords: sample size; clinical trial; size determination;
Optimal sample size determination for single-arm trials in pediatric and rare populations with Bayesian borrowing
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Biopharmaceutical Statistics"
DOI: 10.1080/10543406.2022.2058529
Abstract: ABSTRACT In many therapeutic areas with unmet medical needs, such as pediatric oncology and rare diseases, one of the deterrent factors for clinical trial interpretability is the limited sample size with less-than-ideal operating characteristics. Single… read more here.
Keywords: sample size; trial; single arm; size ... See more keywords
Bayesian sample size determination in basket trials borrowing information between subsets.
Sign Up to like & getrecommendations! Published in 2022 at "Biostatistics"
DOI: 10.1093/biostatistics/kxac033
Abstract: Basket trials are increasingly used for the simultaneous evaluation of a new treatment in various patient subgroups under one overarching protocol. We propose a Bayesian approach to sample size determination in basket trials that permit… read more here.
Keywords: size determination; basket trials; sample size; sample ... See more keywords
Size determination of gold nanoparticles in silicate glasses by UV–Vis spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Nanophotonics"
DOI: 10.1117/1.jnp.11.016011
Abstract: Abstract. A relatively easier and more accurate method for the determination of average size of metal nanoparticles/aggregates in silicate glasses based on ultraviolet visible (UV–Vis) spectra fitted with the Mie and Mie–Gans models was reported.… read more here.
Keywords: silicate glasses; determination gold; size determination; size ... See more keywords
Improving Left Atrial Appendage Occlusion Device Size Determination by Three-Dimensional Printing-Based Preprocedural Simulation
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Cardiovascular Medicine"
DOI: 10.3389/fcvm.2022.830062
Abstract: Background The two-dimensional (2D)-based left atrial appendage (LAA) occluder (LAAO) size determination by using transesophageal echocardiography (TEE) is limited by the structural complexity and wide anatomical variation of the LAA. Objective This study aimed to… read more here.
Keywords: size; left atrial; simulation; size determination ... See more keywords
Tolerance Limits and Sample-Size Determination Using Weibull Trimmed Data
Sign Up to like & getrecommendations! Published in 2023 at "Axioms"
DOI: 10.3390/axioms12040351
Abstract: Guaranteed-coverage and expected-coverage tolerance limits for Weibull models are derived when, owing to restrictions on data collection, experimental difficulties, the presence of outliers, or some other extraordinary reasons, certain proportions of the extreme sample values… read more here.
Keywords: tolerance limits; sample size; tolerance; trimmed data ... See more keywords