193 results match your criteria: "H. Milton Stewart School of Industrial and Systems Engineering[Affiliation]"

Background: The timely identification of nulliparas at high risk of adverse fetal and neonatal outcomes during pregnancy is crucial for initiating clinical interventions to prevent perinatal complications. Although machine learning methods have been applied to predict preterm birth and other pregnancy complications, many models do not provide explanations of their predictions, limiting the clinical use of the model.

Objective: This study aimed to develop interpretable prediction models for a composite adverse perinatal outcome (stillbirth, neonatal death, estimated Combined Apgar score of <10, or preterm birth) at different points in time during the pregnancy and to evaluate the marginal predictive value of individual predictors in the context of a machine learning model.

View Article and Find Full Text PDF

Background: Alzheimer's disease (AD) is a common neurodegenerative disorder that has a multi-step disease progression. Differences between moderate and advanced stages of AD have not yet been fully characterized.

Materials And Methods: Herein, we performed a transcript-resolution analysis in 454 AD-related samples, including 145 non-demented control, 140 asymptomatic AD (AsymAD), and 169 AD samples.

View Article and Find Full Text PDF

County augmented transformer for COVID-19 state hospitalizations prediction.

Sci Rep

June 2023

H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.

The prolonged COVID-19 pandemic has tied up significant medical resources, and its management poses a challenge for the public health care decision making. Accurate predictions of the hospitalizations are crucial for the decision makers to make informed decision for the medical resource allocation. This paper proposes a method named County Augmented Transformer (CAT).

View Article and Find Full Text PDF

CSSQ: a ChIP-seq signal quantifier pipeline.

Front Cell Dev Biol

May 2023

School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States.

Chromatin immunoprecipitation followed by sequencing (ChIP-seq) has revolutionized the studies of epigenomes and the massive increase in ChIP-seq datasets calls for robust and user-friendly computational tools for quantitative ChIP-seq. Quantitative ChIP-seq comparisons have been challenging due to noisiness and variations inherent to ChIP-seq and epigenomes. By employing innovative statistical approaches specially catered to ChIP-seq data distribution and sophisticated simulations along with extensive benchmarking studies, we developed and validated CSSQ as a nimble statistical analysis pipeline capable of differential binding analysis across ChIP-seq datasets with high confidence and sensitivity and low false discovery rate with any defined regions.

View Article and Find Full Text PDF

Infectious diseases, like COVID-19, pose serious challenges to university campuses, which typically adopt closure as a non-pharmaceutical intervention to control spread and ensure a gradual return to normalcy. Intervention policies, such as remote instruction (RI) where large classes are offered online, reduce potential contact but also have broad side-effects on campus by hampering the local economy, students' learning outcomes, and community wellbeing. In this paper, we demonstrate that university policymakers can mitigate these tradeoffs by leveraging anonymized data from their WiFi infrastructure to learn community mobility-a methodology we refer to as (WiMob).

View Article and Find Full Text PDF

Critical success factors for high routine immunization performance: A case study of Senegal.

Vaccine X

August 2023

Institut de Recherche en Santé de Surveillance Epidemiologique et de Formation, Dakar, Senegal.

Background: The essential components of a vaccine delivery system are well-documented, but robust evidence is lacking on policies and implementation strategies are operationalized to drive catalytic improvements in coverage. To address this gap, we identified success factors that supported improvements in routine immunization coverage in Senegal, especially from 2000 to 2019.

Methods: We identified Senegal as an exemplar in the delivery of childhood vaccines through analysis of DTP1 and DTP3 coverage data.

View Article and Find Full Text PDF

Background: Social media has served as a lucrative platform for spreading misinformation and for promoting fraudulent products for the treatment, testing, and prevention of COVID-19. This has resulted in the issuance of many warning letters by the US Food and Drug Administration (FDA). While social media continues to serve as the primary platform for the promotion of such fraudulent products, it also presents the opportunity to identify these products early by using effective social media mining methods.

View Article and Find Full Text PDF

With over 100,000 patients on the kidney transplant waitlist in 2019, it is important to understand if and how the functional status of a patient may change while on the waitlist. Recorded both at registration and just prior to transplantation, the Karnofsky Performance Score measures a patient's functional status and takes on values ranging from 0 to 100 in increments of 10. Using machine learning techniques, we built a gradient boosting regression model to predict a patient's pre-transplant functional status based on information known at the time of waitlist registration.

View Article and Find Full Text PDF

A disposable impedance-based sensor for in-line cell growth monitoring in CAR-T cell manufacturing.

Bioelectrochemistry

August 2023

Georgia Tech Manufacturing Institute, Georgia Institute of Technology, Atlanta 30332, United States; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta 30332, United States; H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta 30332, United States.

This paper presents the development of low-cost, disposable impedance-based sensors for real-time, in-line monitoring of suspension cell culture. The sensors consist of electrical discharge machining (EDM) cut aluminum electrodes and polydimethylsiloxane (PDMS) spacers, both of which are low-cost materials that can be safely disposed of. Our research demonstrates the capability of these low-cost sensors for in-line, non-invasive monitoring of suspension cell growth in cell manufacturing.

View Article and Find Full Text PDF

Joint COVID-19 and influenza-like illness forecasts in the United States using internet search information.

Commun Med (Lond)

March 2023

H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, GA, USA.

Background: As the prolonged COVID-19 pandemic continues, severe seasonal Influenza (flu) may happen alongside COVID-19. This could cause a "twindemic", in which there are additional burdens on health care resources and public safety compared to those occurring in the presence of a single infection. Amidst the raising trend of co-infections of the two diseases, forecasting both Influenza-like Illness (ILI) outbreaks and COVID-19 waves in a reliable and timely manner becomes more urgent than ever.

View Article and Find Full Text PDF

Estimating and Assessing Differential Equation Models with Time-Course Data.

J Phys Chem B

March 2023

Department of Statistics, Harvard University, Cambridge, Massachusetts 02138, United States.

Ordinary differential equation (ODE) models are widely used to describe chemical or biological processes. This Article considers the estimation and assessment of such models on the basis of time-course data. Due to experimental limitations, time-course data are often noisy, and some components of the system may not be observed.

View Article and Find Full Text PDF

Background: The competencies of medical staff in the public health emergency system and evaluated the effects of system-based professional training were investigated.

Material And Methods: A competency model for individuals in a public health emergency management system was developed, which contained 33 items with 5 domains. A competency-based intervention was performed.

View Article and Find Full Text PDF

Sport-related concussion (SRC) is associated with several post-injury consequences, including neurocognitive decrements and psychological distress. Yet, how these clinical markers interact with each other, the magnitude of their interrelationships, and how they may vary over time following SRC are not well understood. Network analysis has been proposed as a statistical and psychometric method to conceptualize and map the complex interplay of interactions between observed variables (e.

View Article and Find Full Text PDF

Test-Retest Reliability and Efficacy of Individual Symptoms in Concussion Management.

Clin J Sport Med

January 2023

Department of Kinesiology and Applied Physiology and Interdisciplinary Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware.

Objective: (1) To determine test-retest reliability of individual Sport Concussion Assessment Tool-Third Edition (SCAT-3) symptom scores and symptom severity scores, (2) to examine the specificity/sensitivity of individual SCAT-3 symptom severity scores acutely (24-48 hours) postconcussion, and (3) to develop a model of symptoms best able to differentiate concussed from nonconcussed student athletes and cadets.

Design: Prospective, longitudinal, and cross-sectional.

Setting: Twenty-six civilian schools and 3 US service academies.

View Article and Find Full Text PDF

Deep neural networks (DNNs) have transformed the field of computer vision and currently constitute some of the best models for representations learned hierarchical processing in the human brain. In medical imaging, these models have shown human-level performance and even higher in the early diagnosis of a wide range of diseases. However, the goal is often not only to accurately predict group membership or diagnose but also to provide explanations that support the model decision in a context that a human can readily interpret.

View Article and Find Full Text PDF

Relation of blood lead levels and lead in gasoline: an updated systematic review.

Environ Health

December 2022

H. Milton Stewart School of Industrial and Systems Engineering, and School of Public Policy, Georgia Institute of Technology, Atlanta, GA, USA.

Background: Millions of tons of lead were added to gasoline worldwide beginning in 1922, and leaded gasoline has been a major source of population lead exposure. In 1960s, lead began to be removed from automotive gasoline. Removal was completed in 2021.

View Article and Find Full Text PDF

Are more charging piles imperative to future electrified transportation system?

Fundam Res

September 2024

School of Transportation Science and Engineering, Beihang University, Beijing 100191, China.

Scholars and practitioners believe that the large-scale deployment of charging piles is imperative to our future electric transportation systems. Major economies ambitiously install charging pile networks, with massive construction spending, maintenance costs, and urban space occupation. However, recent developments in technology may significantly reduce the necessary charging capacity required by the system.

View Article and Find Full Text PDF

Quantitative fate mapping: A general framework for analyzing progenitor state dynamics via retrospective lineage barcoding.

Cell

November 2022

Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Center for Epigenetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Electronic address:

Article Synopsis
  • The study explores how natural and induced somatic mutations in the genome can serve as "lineage barcodes" to track cellular relationships and their development over time.
  • The authors introduce a method called quantitative fate mapping, which reconstructs the hierarchy and dynamics of progenitor cell states during development using these lineage barcodes.
  • They present a tool named Phylotime for creating time-scaled phylogenies and validate its effectiveness through experiments, establishing guidelines for analyzing the necessary number of cells for accurate fate mapping.
View Article and Find Full Text PDF

Flexible analytic model to inform multi-stakeholder pediatric vaccine scheduling decisions.

Vaccine

December 2022

Health Economic and Decision Sciences, MSD (UK) Limited, London, United Kingdom. Electronic address:

Background: Pediatric immunization is important for preventing potentially life-threatening diseases in children. Over time, the number of recommended pediatric vaccines has increased and is likely to increase further as new vaccines are developed. Given the different number of doses for available vaccines and various constraints (e.

View Article and Find Full Text PDF

We propose a methodology to add new technologies into Environmentally Extended Input-Output (EEIO) models based on a Supply and Use framework. The methodology provides for adding new industries (new technologies) and a new commodity under the assumption that the new commodity will partially substitute for a functionally-similar existing commodity of the baseline economy. The level of substitution is controlled by a percentage (%) as a variable of the model.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates how well the ImPACT neurocognitive test identifies concussions in athletes with ADHD and/or learning disorders, noting that current understanding of test performance in this population is limited.
  • - Participants included collegiate athletes and military cadets who completed the ImPACT test pre- and post-concussion, with data analyzed using various methods to determine test sensitivity and specificity.
  • - Results showed that sensitivity and specificity values for identifying concussions in these subgroups were generally low, suggesting the ImPACT test may not be clinically effective for individuals with ADHD and/or learning disorders.
View Article and Find Full Text PDF

Introduction: The essential components of a vaccine delivery system are well-documented, but robust evidence on how and why the related processes and implementation strategies drive catalytic improvements in vaccination coverage are not well established. To address this gap, we identified critical success factors that may have led to substantial improvements in routine childhood immunization coverage in Nepal from 2000 through 2019.

Methods: We identified Nepal as an exemplar in the delivery of early childhood immunization through analysis of DTP1 and DTP3 coverage data.

View Article and Find Full Text PDF

Cyber and physical attacks threaten the security of distribution power grids. The emerging renewable energy sources such as photovoltaics (PVs) introduce new potential vulnerabilities. Based on the electric waveform data measured by waveform sensors in the distribution power networks, in this paper, we propose a novel high-dimensional data-driven cyber physical attack detection and identification approach (HCADI).

View Article and Find Full Text PDF

Importance: A key question for policy makers and the public is what to expect from the COVID-19 pandemic going forward as states lift nonpharmacologic interventions (NPIs), such as indoor mask mandates, to prevent COVID-19 transmission.

Objective: To project COVID-19 deaths between March 1, 2022, and December 31, 2022, in each of the 50 US states, District of Columbia, and Puerto Rico assuming different dates of lifting of mask mandates and NPIs.

Design Setting And Participants: This simulation modeling study used the COVID-19 Policy Simulator compartmental model to project COVID-19 deaths from March 1, 2022, to December 31, 2022, using simulated populations in the 50 US states, District of Columbia, and Puerto Rico.

View Article and Find Full Text PDF