Works (14)

Updated: November 11th, 2023 05:00

2022 article

Dynamic simulation of social media challenge participation to examine intervention strategies

Khasawneh, A., Madathil, K. C., Taaffe, K. M., Zinzow, H., Ponathil, A., Madathil, S. C., … Rosopa, P. J. (2022, September 16). JOURNAL OF COMPUTATIONAL SOCIAL SCIENCE, Vol. 9.

author keywords: Agent-based model; Web-based challenges; Self-injurious behavior; Behavior; Integrated behavioral model; Social media
TL;DR: This paper shows how agent-based modeling (ABM) can be used to investigate the effect of educational intervention programs to reduce participation in social media challenges at multiple levels—family, school, and community, and suggests that educational interventions at combined family and school levels are the most efficient type of long-term intervention. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: September 26, 2022

2022 journal article

Routing and staffing in emergency departments: A multiclass queueing model with workload dependent service times

IISE TRANSACTIONS ON HEALTHCARE SYSTEMS ENGINEERING, 13(1), 46–61.

By: S. Nambiar n, M. Mayorga n & Y. Liu n

author keywords: Simulation; fluid approximation; queueing model; patient flow
TL;DR: This work model a multiclass multiserver queueing system where patients of varying acuity receive care from one of several wards, each ward is attended by several nurses who work as a team, and incorporates state-dependent service times into the model. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: November 6, 2023

2020 article

EVALUATING DIABETIC RETINOPATHY SCREENING INTERVENTIONS IN A MICROSIMULATION MODEL

2020 WINTER SIMULATION CONFERENCE (WSC), pp. 944–955.

By: B. Swan n, S. Nambiar n, P. Koutouan n, M. Mayorga n, J. Ivy n & S. Fransen

TL;DR: A microsimulation integrating the natural history model of DR with a patient’s interaction with the care system increased adherence of patients with vision-threatening DR to follow-up eye care, decreased the number of ‘unnecessary’ visits in specialty eye care from patients without VTDR, and decreased the total years spent blind. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 30, 2021

2019 journal article

Estimating the impact of insurance expansion on colorectal cancer and related costs in North Carolina: A population-level simulation analysis

PREVENTIVE MEDICINE, 129.

MeSH headings : Aged; Colorectal Neoplasms / diagnosis; Colorectal Neoplasms / therapy; Computer Simulation; Cost Savings / statistics & numerical data; Early Detection of Cancer / economics; Early Detection of Cancer / statistics & numerical data; Female; Humans; Insurance, Health / economics; Insurance, Health / statistics & numerical data; Male; Mass Screening / economics; Medicaid / economics; Medicaid / statistics & numerical data; Medicare / economics; Medicare / statistics & numerical data; Middle Aged; North Carolina; Patient Protection and Affordable Care Act; United States
TL;DR: Estimated cost savings - balancing increased CRC screening/testing costs against decreased cancer treatment costs - are approximately $30’M and $970 M for Medicaid expansion and Medicare-for-all scenarios, respectively, compared to status quo. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 10, 2020

2019 journal article

Mailed FIT (fecal immunochemical test), navigation or patient reminders? Using microsimulation to inform selection of interventions to increase colorectal cancer screening in Medicaid enrollees

PREVENTIVE MEDICINE, 129.

By: M. Davis*, S. Nambiar n, M. Mayorga n, E. Sullivan*, K. Hicklin*, . Meghan C. O'Leary*, K. Dillon*, K. Lich* ...

Contributors: M. Davis*, S. Nambiar n, M. Mayorga n, E. Sullivan*, K. Hicklin*, . M.C. O'Leary, K. Dillon*, K. Hassmiller Lich* ...

author keywords: Colorectal cancer; Simulation; Screening; Cancer prevention & control; Disparities; Intervention selection; Implementation; Medicaid
MeSH headings : Colorectal Neoplasms / diagnosis; Computer Simulation; Cost-Benefit Analysis; Early Detection of Cancer / statistics & numerical data; Female; Humans; Immunohistochemistry; Male; Mass Screening / economics; Mass Screening / statistics & numerical data; Medicaid / statistics & numerical data; Middle Aged; Occult Blood; Oregon; Patient Navigation / statistics & numerical data; Postal Service; Reminder Systems / statistics & numerical data; United States
TL;DR: To approach national CRC screening targets, health system stakeholders are encouraged to implement Mailed FIT with or without Navigation and Reminders, and to approach national screening targets if stakeholders were willing to pay $230 or less per additional year up-to-date. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 10, 2020

2019 review

Objective measures of workload in healthcare: a narrative review

[Review of ]. INTERNATIONAL JOURNAL OF HEALTH CARE QUALITY ASSURANCE, 33(1), 1–17.

By: D. Fishbein*, S. Nambiar n, K. McKenzie n, M. Mayorga n, K. Miller*, K. Tran*, L. Schubel*, J. Agor*, T. Kim*, M. Capan*

Contributors: D. Fishbein*, S. Nambiar n, K. McKenzie n, M. Mayorga n, K. Miller*, K. Tran*, L. Schubel*, J. Agor*, T. Kim*, M. Capan*

author keywords: Workload; Care delivery needs of patients; Clinician performance; Objective workload; Task demand
MeSH headings : Electronic Health Records; Health Personnel / statistics & numerical data; Humans; Qualitative Research; Quality of Health Care; Tertiary Healthcare; Workload / classification; Workload / statistics & numerical data
TL;DR: An overview of objective measures of workload associated with direct care delivery in tertiary healthcare settings with a focus on measures that can be obtained from electronic records to inform operationalization of workload measurement is provided. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 21, 2020

2019 conference paper

Simulating Uncertainty of Early Warning Scores in Sepsis Detection

Proceedings of the 10th ACM International Conference on Bioinformatics, Computational Biology and Health Informatics - BCB '19.

Sidd Nambiar

TL;DR: The findings from this study provide a framework to capture the stochastic nature of early warning scores and can inform implementation of scores in clinical practice with the goal of supporting early detection of sepsis. (via Semantic Scholar)
Source: ORCID
Added: April 9, 2021

2018 conference paper

A simulation model to assess the impact of insurance expansion on colorectal cancer screening at the population level

Proceedings - Winter Simulation Conference, 2018-December, 2701–2712.

Contributors: S. Nambiar n, M. Mayorga n, . M.C. O'Leary, K. Lich* & S. Wheeler*

TL;DR: An individual-based discrete-event simulation model is presented to estimate the impact of insurance expansion scenarios on CRC screening, incidence, mortality, and costs and compared to no insurance reform and the ACA without Medicaid expansion. (via Semantic Scholar)
Source: ORCID
Added: April 9, 2021

2018 conference paper

A simulation model to assess the impact of insurance expansion on colorectal cancer screening at the population level

Proceedings of the 2018 Winter Simulation Conference, 2701–2712.

By: S. Nambiar, M. Mayorga, M. O’Leary, K. Lich & S. Wheeler

Event: IEEE Press

Source: ORCID
Added: April 9, 2021

2018 journal article

On scheduling a photolithography area containing cluster tools

COMPUTERS & INDUSTRIAL ENGINEERING, 121, 177–188.

By: S. Madathil*, S. Nambiar n, S. Mason* & M. Kurz*

Contributors: S. Chalil Madathil*, S. Nambiar n, S. Mason* & M. Kurz*

author keywords: Photolithography; Scheduling; Cluster tools; Optimization; Heuristics; Genetic algorithm
TL;DR: Experimental results suggest that the solution algorithms show promise for real world implementation as they can help to improve resource utilization, reduce job completion times, and decrease unnecessary delays in a wafer fab. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 journal article

Low-Cost Sensor System Design for In-Home Physical Activity Tracking

IEEE Journal of Translational Engineering in Health and Medicine, 4.

Contributors: S. Nambiar n, A. Nikolaev*, M. Greene*, L. Cavuoto* & A. Bisantz*

UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Source: ORCID
Added: April 9, 2021

2014 journal article

Towards evaluating and enhancing the reach of online health forums for smoking cessation

Network Modeling Analysis in Health Informatics and Bioinformatics, 3(1).

By: M. Stearns*, S. Nambiar*, A. Nikolaev*, A. Semenov* & S. McIntos*

Contributors: M. Stearns*, S. Nambiar*, A. Nikolaev*, A. Semenov* & S. McIntos*

author keywords: Social network analysis; Smoking cessation; Online forum communication; RE-AIM framework; Reach; Engagement; Intervention modeling
TL;DR: This paper quantitatively studies the effect of engagement on the users of the Alt.Stop-Smoking forum and demonstrates how online service evaluation and planning by social network analysts can be applied towards strategic interventions targeting increased user engagement in online health forums. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Source: ORCID
Added: April 9, 2021

2013 conference paper

Understanding the visualization strategies used by experts when reading mechanical part drawings using eye tracking

IIE Annual Conference and Expo 2013, 503–511. http://www.scopus.com/inward/record.url?eid=2-s2.0-84900300219&partnerID=MN8TOARS

By: S. Nambiar, K. Madathil, M. Paul, M. Zelaya, R. Koikkara & A. Gramopadhye

Contributors: S. Nambiar, K. Madathil, M. Paul, M. Zelaya, R. Koikkara & A. Gramopadhye

Source: ORCID
Added: April 9, 2021

2012 conference paper

BrailleKey: An alternative Braille text input system: Comparative study of an innovative simplified text input system for the visually impaired

4th International Conference on Intelligent Human Computer Interaction: Advancing Technology for Humanity, IHCI 2012.

By: N. Subash*, S. Nambiar* & V. Kumar*

Contributors: N. Subash*, S. Nambiar* & V. Kumar*

TL;DR: The study conducted on five blind subjects show that this Braille alphabets system can be used as a viable alternative to the existing input methods that have been developed for this purpose. (via Semantic Scholar)
UN Sustainable Development Goal Categories
4. Quality Education (OpenAlex)
Source: ORCID
Added: April 9, 2021

Employment

Updated: February 25th, 2023 08:04

2022 - present

Booz Allen Hamilton DC, US
Lead Scientist Chief Technology Office - Artificial Intelligence

2021 - present

Covalent Solutions LLC Rockville, Maryland, US
Data Scientist

2020 - 2021

MedStar Health Research Institute Hyattsville, MD, US
Research Fellow

Education

Updated: August 5th, 2020 09:59

2015 - 2020

North Carolina State University Raleigh, NC, US
Doctor of Philosophy Department of Industrial and Systems Engineering

2013 - 2015

University at Buffalo - North Campus Amherst, NY, US
Master of Science Department of Industrial Engineering

2009 - 2013

Indian Institute of Technology Guwahati Guwahati, Assam, IN
Bachelor of Technology Department of Mechanical Engineering

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