Stephanie Tienshaw Chen

Works (6)

Updated: July 5th, 2023 15:34

2020 journal article

Correlation models for monitoring fetal growth

STATISTICAL METHODS IN MEDICAL RESEARCH, 29(10), 2795–2813.

By: Y. Feng  n, L. Xiao n , C. Li n, S. Chen n & E. Ohuma *

author keywords: Fetal health; longitudinal study; correlation; reference chart
MeSH headings : Female; Femur / diagnostic imaging; Fetal Development; Gestational Age; Humans; Longitudinal Studies; Pregnancy; Ultrasonography, Prenatal
TL;DR: Using data from the Fetal Growth Longitudinal Study of the INTERGROWTH-21st project, the longitudinal dependence of fetal head circumference, biparietal diameter, occipito-frontal diameter, abdominal circumference, and femur length is modelled using a two-stage approach. (via Semantic Scholar)
UN Sustainable Development Goal Categories
5. Gender Equality (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: April 20, 2020

2020 journal article

Spine and dine: A key defensive trait promotes ecological success in spiny ants

ECOLOGY AND EVOLUTION, 10(12), 5852–5863.

By: B. Blanchard *, A. Nakamura *, M. Cao *, S. Chen n & C. Moreau *

author keywords: competition; defense; morphological trait; predator-prey interactions; spines
TL;DR: Spines appear to confer broad antipredator benefits and serve as a form of defense with undetectable costs to key ecological abilities like resource foraging and competitive ability, providing an explanation for both the ecological success of the study genus and the large number of evolutionary origins of this trait across all ants. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: May 18, 2020

2019 journal article

A smoothing-based goodness-of-fit test of covariance for functional data

BIOMETRICS, 75(2), 562–571.

By: S. Chen n, L. Xiao n  & A. Staicu n 

author keywords: functional data analysis; Functional principal components analysis; hypothesis testing; linear mixed effects models; longitudinal data analysis
MeSH headings : Analysis of Variance; Computer Simulation; Data Interpretation, Statistical; Humans; Longitudinal Studies; Models, Statistical
TL;DR: A goodness‐of‐fit test for comparing parametric covariance functions against general nonparametric alternatives for both irregularly observed longitudinal data and densely observed functional data is proposed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 23, 2019

2019 journal article

Performance of the Population Bioequivalence (PBE) Statistical Test with Impactor Sized Mass Data

AAPS PHARMSCITECH, 20(7).

By: S. Chen n, B. Morgan*, H. Beresford, E. Getz*, D. Christopher*, G. Langstrom*, H. Strickland*, C. Wiggenhorn*, S. Lyapustina

author keywords: average bioequivalence; inhalation products; in vitro performance; regulatory; US Food and Drug Administration (FDA)
MeSH headings : Administration, Inhalation; Databases, Factual / statistics & numerical data; Humans; Metered Dose Inhalers / statistics & numerical data; Nebulizers and Vaporizers / statistics & numerical data; Pharmaceutical Preparations / administration & dosage; Therapeutic Equivalency; United States; United States Food and Drug Administration / statistics & numerical data
TL;DR: This work showed that separately modeling within- and between-batch variability while increasing the number of sampled batches addressed previously identified issues of the PBE approach when between- batch variability was present, namely, increased risk for falsely concluding equivalence and low probability of correctly concluding equivalences. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: September 16, 2019

2018 journal article

Nutrient Balancing by Captive Golden Snub-Nosed Monkeys (Rhinopithecus roxellana)

INTERNATIONAL JOURNAL OF PRIMATOLOGY, 39(6), 1124–1138.

By: S. Chen*, . Luo *, R. Hou *, D. Raubenheimer *, W. Ji *, X. Jin *, Z. Jiang, X. Yu ...

author keywords: Captivity; Geometric framework; Nutrition
TL;DR: The results highlight the importance of developing nutritionally adequate diets for captive animals based on an understanding of their nutritional requirements and the need to evaluate diet variation across sites, seasons, and age–sex classes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: January 7, 2019

2018 journal article

Performance of the Population Bioequivalence (PBE) Statistical Test Using an IPAC-RS Database of Delivered Dose from Metered Dose Inhalers

AAPS PHARMSCITECH, 19(3), 1410–1425.

By: B. Morgan*, S. Chen n, D. Christopher*, G. Langstrom*, C. Wiggenhorn*, E. Getz, H. Beresford, T. Hoffelder * ...

author keywords: population bioequivalence; inhalation products; in vitro performance; regulatory; FDA
MeSH headings : Databases, Factual; Metered Dose Inhalers; Models, Statistical; Therapeutic Equivalency; United States; United States Food and Drug Administration
TL;DR: Performance characteristics of the population bioequivalence (PBE) statistical test recommended by the US Food and Drug Administration for orally inhaled products and a need for further refinement of in vitro equivalence methodology are reported. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

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