User profiles for S. W. Choi

Seung W. Choi

- Verified email at austin.utexas.edu - Cited by 15572

Sang Woon Choi

- Verified email at cha.ac.kr - Cited by 13822

Shing Wan Choi

- Verified email at regeneron.com - Cited by 3595

[HTML][HTML] Folate and carcinogenesis: an integrated scheme

SW Choi, JB Mason - The Journal of nutrition, 2000 - Elsevier
Collectively, the evidence from epidemiologic, animal and human studies strongly suggests
that folate status modulates the risk of developing cancers in selected tissues, the most …

Tutorial: a guide to performing polygenic risk score analyses

SW Choi, TSH Mak, PF O'Reilly - Nature protocols, 2020 - nature.com
A polygenic score (PGS) or polygenic risk score (PRS) is an estimate of an individual’s
genetic liability to a trait or disease, calculated according to their genotype profile and relevant …

[HTML][HTML] Epigenetics: a new bridge between nutrition and health

SW Choi, S Friso - Advances in nutrition, 2010 - Elsevier
Nutrients can reverse or change epigenetic phenomena such as DNA methylation and
histone modifications, thereby modifying the expression of critical genes associated with …

[HTML][HTML] Contact tracing during coronavirus disease outbreak, South Korea, 2020

…, E Park, SW Choi, M Kim, J Song, SW Choi… - Emerging infectious …, 2020 - ncbi.nlm.nih.gov
We analyzed reports for 59,073 contacts of 5,706 coronavirus disease (COVID-19) index
patients reported in South Korea during January 20–March 27, 2020. Of 10,592 household …

Item banks for measuring emotional distress from the Patient-Reported Outcomes Measurement Information System (PROMIS®): depression, anxiety, and anger

PA Pilkonis, SW Choi, SP Reise, AM Stover… - …, 2011 - journals.sagepub.com
The authors report on the development and calibration of item banks for depression, anxiety,
and anger as part of the Patient-Reported Outcomes Measurement Information System (…

Nonlinear process monitoring using kernel principal component analysis

JM Lee, CK Yoo, SW Choi, PA Vanrolleghem… - Chemical engineering …, 2004 - Elsevier
In this paper, a new nonlinear process monitoring technique based on kernel principal
component analysis (KPCA) is developed. KPCA has emerged in recent years as a promising …

A common mutation in the 5, 10-methylenetetrahydrofolate reductase gene affects genomic DNA methylation through an interaction with folate status

S Friso, SW Choi, D Girelli, JB Mason… - Proceedings of the …, 2002 - National Acad Sciences
DNA methylation, an essential epigenetic feature of DNA that modulates gene expression and
genomic integrity, is catalyzed by methyltransferases that use the universal methyl donor S…

PRSice-2: Polygenic Risk Score software for biobank-scale data

SW Choi, PF O'Reilly - Gigascience, 2019 - academic.oup.com
Background Polygenic risk score (PRS) analyses have become an integral part of biomedical
research, exploited to gain insights into shared aetiology among traits, to control for …

Dielectric and pyroelectric properties in the Pb(Mg1/3Nb2/3)O3-PbTiO3 system

SW Choi, RTR Shrout, SJ Jang, AS Bhalla - Ferroelectrics, 1989 - Taylor & Francis
Dielectric and pyroelectric properties of relaxor ferroelectric in the (1-x) Pb(Mg 1/3 Nb 2/3 )O
3 -xPbTiO 3 solid solution series have been investigated. The dielectric constant (K) and …

[HTML][HTML] Lordif: An R package for detecting differential item functioning using iterative hybrid ordinal logistic regression/item response theory and Monte Carlo …

SW Choi, LE Gibbons, PK Crane - Journal of statistical software, 2011 - ncbi.nlm.nih.gov
Logistic regression provides a flexible framework for detecting various types of differential item
functioning (DIF). Previous efforts extended the framework by using item response theory (…