Jason P. Williams

ORCID: 0000-0002-6930-1923
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Ultrasound in Clinical Applications
  • Speech and dialogue systems
  • Remote-Sensing Image Classification
  • Interactive and Immersive Displays
  • Tactile and Sensory Interactions
  • Hemodynamic Monitoring and Therapy
  • Occupational Health and Safety Research
  • Data Visualization and Analytics
  • Risk and Safety Analysis
  • Human-Automation Interaction and Safety
  • Motor Control and Adaptation
  • Spectroscopy and Chemometric Analyses
  • Teleoperation and Haptic Systems
  • Usability and User Interface Design
  • Computational Drug Discovery Methods
  • Cardiac Arrest and Resuscitation
  • Digital Accessibility for Disabilities
  • Multi-Agent Systems and Negotiation
  • Software Engineering Techniques and Practices
  • Medication Adherence and Compliance
  • Mobile Health and mHealth Applications
  • Sepsis Diagnosis and Treatment
  • Service-Oriented Architecture and Web Services
  • Blind Source Separation Techniques
  • 3D Shape Modeling and Analysis

Atlanta VA Medical Center
2022-2024

Emory University Hospital
2020-2023

Emory and Henry College
2023

Veterans Health Administration
2020-2022

Atlanta Medical Center
2022

Emory University
2020-2021

Texas A&M University
2017-2019

U.S. Air Force Institute of Technology
2013

Wright-Patterson Air Force Base
2013

The University of Queensland
2005

Abstract Background Point‐of‐care ultrasound (POCUS) can reduce procedural complications and improve the diagnostic accuracy of hospitalists. Currently, it is unknown how many practicing hospitalists use POCUS, which applications are used most often, what barriers to POCUS exist. Objective This study aimed characterize current use, training needs, among hospital medicine groups (HMGs). Design, Setting, Participants A prospective observational all Veterans Affairs (VA) medical centers was...

10.1002/jhm.12911 article EN cc-by-nc-nd Journal of Hospital Medicine 2022-07-17

BackgroundMore primary care providers (PCPs) have begun to embrace the use of point-of-care ultrasound (POCUS), but little is known about how PCPs are currently using POCUS and what barriers exist. In this prospective study, largest systematic survey among PCPs, we assessed current use, program management, training needs for in care.MethodsWe conducted a observational study all VA Medical Centers (VAMCs) between June 2019 March 2020 web-based sent VAMC Chiefs Staff clinics...

10.1016/j.amjmed.2023.01.038 article EN cc-by-nc-nd The American Journal of Medicine 2023-02-23

BackgroundPoint-of-care ultrasound (POCUS) has become an integral part of critical care medicine for procedural guidance, bedside diagnostics, and assessing response to treatment. Multiple societies recommend POCUS use, training been a requirement fellowship since 2012. Yet, current practice patterns use in ICUs are not well known.Research QuestionThis study aimed characterize needs, barriers among intensivists.Study Design MethodsA prospective observational all Veterans Affairs (VA) medical...

10.1016/j.chstcc.2023.100012 article EN cc-by CHEST Critical Care 2023-08-08

Point-of-care ultrasound (POCUS) can aid geriatricians in caring for complex, older patients. Currently, there is limited literature on POCUS use by geriatricians. We conducted a national survey to assess current use, training desired, and barriers among Geriatrics Extended Care ("geriatric") clinics at Veterans Affairs Medical Centers (VAMCs).We prospective observational study of all VAMCs between August 2019 March 2020 using web-based sent VAMC Chiefs Staff geriatric clinics.All (n=130)...

10.1186/s12877-023-04313-2 article EN cc-by BMC Geriatrics 2023-09-27

In this paper, we introduce the concept of shape-changing, user interface control devices called "Haptic Chameleon", which refers to computer-controlled that convey information and from by altering their shape feel. The decides what a Haptic Chameleon will do changing its shape, can immediately recognize capabilities newly shaped device through haptic tactile channels. By combining benefits tangible interfaces, new paradigm has potential vastly improve learning efficiency interaction in wide...

10.1145/985921.986050 article EN 2004-04-24

This work extends the emerging field of hyperspectral imagery (HSI) anomaly detectors and employs independent component (IC) analysis (ICA) to identify anomalous pixels. Using new techniques fully automate feature extraction, selection, pixel identification, an Autonomous Global Anomaly Detector has been developed for employment in operational environment real-time processing HSI. Dimensionality reduction, which is initial extraction prior ICA, effected through a geometric solution that...

10.1109/tgrs.2012.2222418 article EN IEEE Transactions on Geoscience and Remote Sensing 2012-12-19

This article reviews progress in the development of standards and guidelines for human–computer interaction, including those developed within international US bodies. Guidance incorporating software ergonomics into design processes is discussed. Several different techniques that have been defined assessing conformance a product to are reviewed. In addition, strategies employed by formally approved ISO ANSI determining Finally, we discuss prospects challenges must be addressed as pace...

10.1016/s0953-5438(99)00008-9 article EN Interacting with Computers 1999-11-01

Point-of-care ultrasound (POCUS) can assist rheumatologists in monitoring disease activity, establishing diagnoses, and guiding procedural interventions. POCUS use has been increasing, but little is known about current barriers among rheumatologists. The purpose of this study was to characterize use, training needs, practice. A prospective observational all Veterans Affairs (VA) medical centers conducted using a web-based survey sent chiefs staff rheumatology barriers, policies. All (n =...

10.1007/s40744-024-00665-2 article EN cc-by-nc Rheumatology and Therapy 2024-04-06

OCCUPATIONAL APPLICATIONSInterviews were conducted with offshore operators in the oil and gas industry order to gain insight into their experiences of fatigue associated mitigation strategies. These interviews indicated that effective methods techniques originate from both organization worker. Current practices potential recommendations manage worker operations are provided. include improving sleep quality through sleep-cabin arrangements, reducing physical cognitive workload improved...

10.1080/24725838.2019.1593896 article EN IISE Transactions on Occupational Ergonomics and Human Factors 2019-01-02

This research involves simulating remote sensing conditions using previously collected hyperspectral imagery (HSI) data. The Reed–Xiaoli (RX) anomaly detector is well-known for its unsupervised ability to detect anomalies in images. However, the RX assumes uncorrelated and homogeneous data, both of which are not inherent HSI To address this difficulty, we propose a new method termed linear (LRX). Whereas places test pixel at center moving window, LRX employs line pixels above below pixel. In...

10.1177/1548512912473679 article EN The Journal of Defense Modeling and Simulation Applications Methodology Technology 2013-02-21

Socio-technical systems, such as those in oil and gas, or the petrochemical energy industries, are escalating complexity, a consequence of increasingly advanced technologies, organizational constructs, business functions that interact depend on one another. These dynamic social technological elements, coupled with high risk inherent these have generated conditions can bring about catastrophic failure tragic loss human life, disaster Bhopal, India (1984) explosion Houston Ship Channel near...

10.1177/1541931213601905 article EN Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2017-09-01

In this paper, we describe a new force-feedback technique termed "inverted damping", which aids users in manually selecting specific items from within range of possible choices. Typically, the identity goal item is not known beforehand by system. The therefore infers users' intentions type movements carried out and increases amount resistance provided as speed user's decreases. Although might initially sound counter-intuitive, results experiment, reported confirm effectiveness approach. We...

10.1145/765891.766033 article EN 2003-01-01

Hyperspectral imagery (HSI) provides opportunities for locating anomalous objects through the use of multivariate statistics. Global anomaly detectors, such as autonomous global detector (AutoGAD), require user to provide various parameters/thresholds analyse an image. These user-defined settings can be thought control variables and properties employed noise variables. The presence these factors suggests robust parameter design (RPD) locate best algorithm. Mindrup et al. (2012) showed that...

10.1504/ijqet.2013.053258 article EN International Journal of Quality Engineering and Technology 2013-01-01

Abstract Background Many institutions are training clinicians in point-of-care ultrasound (POCUS), but few POCUS skills checklists have been developed and validated. We a consensus-based multispecialty checklist with anchoring references for basic cardiac, lung, abdominal, vascular ultrasound, peripheral intravenous line (PIV) insertion. Methods A expert panel of 14 physicians specializing emergency, critical care, internal/hospital medicine participated modified-Delphi approach to develop...

10.1186/s13089-022-00268-4 article EN cc-by The Ultrasound Journal 2022-05-12

This paper offers improvements to adaptive matched filter (AMF) performance by addressing correlation and non-homogeneity problems inherent hyperspectral imagery (HSI). The estimation of the mean vector covariance matrix background should be calculated using “target-free” data. statement reflects difficulty that including target data in estimates could entail. act as statistical outliers severely contaminate estimators. fact serves impetus for a 2-stage process: First, attempt remove from...

10.1117/1.jrs.7.073547 article EN cc-by Journal of Applied Remote Sensing 2013-06-05

Vitamin B12 deficiency is commonly associated with dementia in patients over the age of 65 years; however, it can affect people all ages. Recognizing clinical sequelae subacute combined degeneration essential for timely diagnosis and treatment vitamin deficiency. In this report, we describe a case young man presenting several months neuropathy, depression, abdominal symptoms. His initial levels were within normal limits, but an elevated methylmalonic acid level his spine on MRI confirmed The...

10.7759/cureus.15429 article EN Cureus 2021-06-03

Collection understanding shifts the traditional focus of retrieval in large collections from locating specific artifacts to gaining a comprehensive view collection. Visualization tools are critical process efficient collection understanding. By presenting simple visual interfaces and intuitive methods interacting with collection, users come understand essence by focusing on artifacts. We discuss practical approach for enhancing image collections.

10.1109/jcdl.2004.240472 article EN ACM/IEEE Joint Conference on Digital Libraries 2004-06-07

Ascites has multiple etiologies, including cirrhosis and heart failure, which can be differentiated by point-of-care ultrasound (POCUS). One cause of cardiac ascites that difficult to identify is portopulmonary hypertension (PPH), a rare disorder caused pulmonary artery vasoconstriction due advanced liver disease. POCUS readily right ventricular dysfunction accelerate PPH diagnosis. This case report describes the use work-up new onset expedite diagnosis PPH.

10.7759/cureus.11604 article EN Cureus 2020-11-21
Coming Soon ...