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Wozniak D, Zahabi M. Cognitive workload classification of law enforcement officers using physiological responses. Appl Ergon 2024; 119:104305. [PMID: 38733659 DOI: 10.1016/j.apergo.2024.104305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 04/18/2024] [Accepted: 05/01/2024] [Indexed: 05/13/2024]
Abstract
Motor vehicle crashes (MVCs) are a leading cause of death for law enforcement officers (LEOs) in the U.S. LEOs and more specifically novice LEOs (nLEOs) are susceptible to high cognitive workload while driving which can lead to fatal MVCs. The objective of this study was to develop a machine learning algorithm (MLA) that can estimate cognitive workload of LEOs while performing secondary tasks in a patrol vehicle. A ride-along study was conducted with 24 nLEOs. Participants performed their normal patrol operations while their physiological responses such as heartrate, eye movement, and galvanic skin response were recorded using unobtrusive devices. Findings suggested that the random forest algorithm could predict cognitive workload with relatively high accuracy (>70%) given that it was entirely reliant on physiological signals. The developed MLA can be used to develop adaptive in-vehicle technology based on real-time estimation of cognitive workload, which can reduce the risk of MVCs in police operations.
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Affiliation(s)
- David Wozniak
- Wm Michael Barnes '64 Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX, USA
| | - Maryam Zahabi
- Wm Michael Barnes '64 Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX, USA.
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Xiao G, Wang J, Shen D. Adaptive fixed-time consensus for stochastic multi-agent systems with uncertain actuator faults. ISA Trans 2023; 137:369-378. [PMID: 36623994 DOI: 10.1016/j.isatra.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 06/04/2023]
Abstract
In this paper, we study the adaptive fixed-time consensus control for stochastic multi-agent systems (SMASs) with uncertain actuator faults. Firstly, a fully distributed adaptive consensus protocol and an adaptive fault-tolerant consensus protocol are proposed, respectively, to ensure that the fixed-time consensus of SMASs with actuator faults can be reached. Secondly, an adaptive fault-tolerant containment consensus protocol is further proposed for the SMASs by leveraging the signum function, and this protocol can effectively solve the containment consensus in the unbalanced communication network. Finally, some simulation examples are given to verify the effectiveness of our consensus protocols.
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Affiliation(s)
- Guanli Xiao
- Department of Mathematics, Guizhou University, Guiyang, Guizhou 550025, China; Gui'an Supercomputing Center, Kechuang Industrial Development Company Limited, Gui'an New Area, Guiyang, Guizhou 550025, China.
| | - JinRong Wang
- Department of Mathematics, Guizhou University, Guiyang, Guizhou 550025, China; Gui'an Supercomputing Center, Kechuang Industrial Development Company Limited, Gui'an New Area, Guiyang, Guizhou 550025, China.
| | - Dong Shen
- Renmin University of China, Haidian District 100872, Beijing, China.
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Van Schoors R, Elen J, Raes A, Vanbecelaere S, Depaepe F. The Charm or Chasm of Digital Personalized Learning in Education: Teachers' Reported Use, Perceptions and Expectations. TechTrends 2022; 67:315-330. [PMID: 36320438 PMCID: PMC9607718 DOI: 10.1007/s11528-022-00802-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Although digital personalized learning (DPL) is assumed to be beneficial for the student as well as the teacher, the implementation process of DPL tools can be challenging. Therefore, the aim of our study is to scrutinize teachers' perceptions towards the implementation of DPL in the classroom. A total of 370 teachers from primary and secondary education (students aged 6-18 years old) were questioned through an online survey. An overview of descriptive results is presented regarding (1) teachers' reported technology use, (2) their perceptions towards adaptivity and dashboards in DPL tools and (3) their expectations of support in view of implementing DPL. Based on a cluster analysis, three teacher clusters are distinguished. Results reveal all three clusters had positive perceptions towards DPL. Nevertheless, there is great variety in reported use of DPL tools.
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Affiliation(s)
- Rani Van Schoors
- Centre for Instructional Psychology and Technology, KU Leuven, Leuven, Belgium
- ITEC, imec research group, KU Leuven, Kortrijk, Belgium
| | - Jan Elen
- Centre for Instructional Psychology and Technology, KU Leuven, Leuven, Belgium
| | - Annelies Raes
- Centre for Instructional Psychology and Technology, KU Leuven, Leuven, Belgium
- ITEC, imec research group, KU Leuven, Kortrijk, Belgium
- CIREL—Centre Interuniversitaire de Recherche en Education de Lille (ULR 4354), 59650 Villeneuve-d’Ascq, France
| | - Stefanie Vanbecelaere
- Centre for Instructional Psychology and Technology, KU Leuven, Leuven, Belgium
- ITEC, imec research group, KU Leuven, Kortrijk, Belgium
| | - Fien Depaepe
- Centre for Instructional Psychology and Technology, KU Leuven, Leuven, Belgium
- ITEC, imec research group, KU Leuven, Kortrijk, Belgium
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Abstract
PURPOSE OF REVIEW The complexity of the human extremity, particularly the upper extremity and the hand, allows us to interact with the world. Prosthetists have struggled to recreate the intuitive motor control, light touch sensation, and proprioception of the innate limb in a manner that reflects the complexity of its native form and function. Nevertheless, recent advances in prosthesis technology, surgical innovations, and enhanced rehabilitation appear promising for patients with limb loss who hope to return to their pre-injury level of function. The purpose of this review is to illustrate recent technological advances that are moving us one step closer to the goal of multi-functional, self-identifiable, durable, and intuitive prostheses. RECENT FINDINGS Surgical advances such as targeted muscle reinnervation, regenerative peripheral nerve interfaces, agonist-antagonist myoneural interfaces, and targeted sensory reinnervation; development of technology designed to restore sensation, such as implanted sensors and haptic devices; and evolution of osseointegrated (bone-anchored) prostheses show great promise. Augmented and virtual reality platforms have the potential to enhance prosthesis design, pre-prosthetic training, incorporation, and use. Emerging technologies move surgeons, rehabilitation physicians, therapists, and prosthetists closer to the goal of creating highly functional prostheses with elevated sensory and motor control. Collaboration between medical teams, scientists, and industry stakeholders will be required to keep pace with patients who require durable, high-functioning prostheses.
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Affiliation(s)
- Taylor J Bates
- Department of Orthopaedics, San Antonio Military Medical Center, 3551 Roger Brooke Drive, JBSA-Ft Sam Houston, TX, 78234, USA
| | - John R Fergason
- Center for the Intrepid, San Antonio Military Medical Center, Fort Sam Houston, JBSA-Ft Sam Houston, TX, USA
| | - Sarah N Pierrie
- Department of Orthopaedics, San Antonio Military Medical Center, 3551 Roger Brooke Drive, JBSA-Ft Sam Houston, TX, 78234, USA.
- Center for the Intrepid, San Antonio Military Medical Center, Fort Sam Houston, JBSA-Ft Sam Houston, TX, USA.
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Abstract
PURPOSE We surveyed bioptic and non-bioptic low-vision drivers in Illinois, USA, to determine their usage of global positioning system (GPS) devices. METHODS Low-vision patients completed an IRB-approved phone survey regarding driving demographics and usage of GPS while driving. Participants were required to be active drivers with an Illinois driver's license, and met one of the following criteria: best-corrected visual acuity (BCVA) less than or equal to 20/40, central or significant peripheral visual field defects, or a combination of both. RESULTS Of 27 low-vision drivers, 10 (37%) used GPS while driving. The average age for GPS users was 54.3 and for non-users was 77.6. All 10 drivers who used GPS while driving reported increased comfort or safety level. CONCLUSIONS Since non-GPS users were significantly older than GPS users, it is likely that older participants would benefit from GPS technology training from their low-vision eye care professionals.
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Affiliation(s)
- Maria Cucuras
- a College of Optometry , Midwestern University , Downers Grove , IL , USA.,b Low Vision/Ocular Disease Residency , Illinois College of Optometry , Chicago , IL , USA
| | - Robert Chun
- a College of Optometry , Midwestern University , Downers Grove , IL , USA.,c Department of Ophthalmology , Loyola University , Chicago , IL , USA
| | - Patrick Lee
- b Low Vision/Ocular Disease Residency , Illinois College of Optometry , Chicago , IL , USA.,d Chicago Lighthouse for the Visually Impaired , Chicago , IL , USA
| | - Walter M Jay
- c Department of Ophthalmology , Loyola University , Chicago , IL , USA
| | - Gregg Pusateri
- e Spectrios Institute for Low Vision , Wheaton , IL , USA
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Irvine D, Zemke A, Pusateri G, Gerlach L, Chun R, Jay WM. Tablet and Smartphone Accessibility Features in the Low Vision Rehabilitation. Neuroophthalmology 2014; 38:53-59. [PMID: 27928274 DOI: 10.3109/01658107.2013.874448] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 11/01/2013] [Accepted: 11/03/2013] [Indexed: 11/13/2022] Open
Abstract
Tablet and smartphone use is rapidly increasing in developed countries. With this upsurge in popularity, the devices themselves are becoming more user-friendly for all consumers, including the visually impaired. Traditionally, visually impaired patients have received optical rehabilitation in the forms of microscopes, stand magnifiers, handheld magnifiers, telemicroscopes, and electronic magnification such as closed circuit televisions (CCTVs). In addition to the optical and financial limitations of traditional devices, patients do not always view them as being socially acceptable. For this reason, devices are often underutilised by patients due to lack of use in public forums or when among peers. By incorporating smartphones and tablets into a patient's low vision rehabilitation, in addition to traditional devices, one provides versatile and mainstream options, which may also be less expensive. This article explains exactly what the accessibility features of tablets and smartphones are for the blind and visually impaired, how to access them, and provides an introduction on usage of the features.
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Affiliation(s)
- Danielle Irvine
- Spectrios Institute for Vision RehabilitationWheaton, IllinoisUSA; The Chicago Lighthouse for People who are Blind or Visually ImpairedChicago, IllinoisUSA; Illinois College of OptometryChicago, IllinoisUSA
| | - Alex Zemke
- Spectrios Institute for Vision RehabilitationWheaton, IllinoisUSA; The Chicago Lighthouse for People who are Blind or Visually ImpairedChicago, IllinoisUSA; Illinois College of OptometryChicago, IllinoisUSA
| | - Gregg Pusateri
- Spectrios Institute for Vision Rehabilitation Wheaton, Illinois USA
| | - Leah Gerlach
- Spectrios Institute for Vision Rehabilitation Wheaton, Illinois USA
| | - Rob Chun
- Spectrios Institute for Vision RehabilitationWheaton, IllinoisUSA; Illinois College of OptometryChicago, IllinoisUSA
| | - Walter M Jay
- Department of Ophthalmology, Loyola University Medical Center Maywood, Illinois USA
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Abstract
It has been estimated that more than 1.6 million individuals in the United States have undergone at least one amputation. The literature abounds with research of the classifications of such injuries, their etiologies, epidemiologies, treatment regimens, average age of onset (average age of amputation), and much more. The subpopulation that is often overlooked in these evaluations, however, is comprised of individuals who have suffered multiple limb loss. The challenges faced by those with single-limb loss are amplified for those with multiple limb loss. Pain, lifestyle adjustment, and quality of life return are just a few key areas of concern in this population. Along with amputations resulting from trauma, many individuals with multiple amputations have endured them as a result of dysvascular disease. Over recent years, amputations as a result of dysvascular disease have risen to comprise more than 80 % of new amputations occurring in the United States every year. This compares to just 54 % of total current prevalence. Those with diabetes comorbid with dysvascular disease make up 74 % of those with dysvascular amputations, and these individuals with diabetes comorbid with dysvascular disease have a 55 % chance of enduring an amputation of their contralateral limb within 2-3 years of their initial amputation. With the well-documented aging of the nation's population and the similarly skyrocketing prevalence of dysvascular disease and diabetes, it can be expected that the number of individuals with multiple limb loss will continue to increase in the United States. This article outlines the recommended measures of care for this particular subpopulation, including pain management, behavioral health considerations, strategies for rehabilitation for various levels and variations of multiple limb loss, and the assistive technology and adaptive equipment that might be available for these individuals to best enable them to continue healthy, fulfilling lives following amputation.
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Affiliation(s)
- Paul F. Pasquina
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD USA
- Center for Rehabilitation Sciences Research (CRSR), Uniformed Services University of the Health Sciences, Bethesda, MD USA
| | - Matthew Miller
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD USA
- Center for Rehabilitation Sciences Research (CRSR), Uniformed Services University of the Health Sciences, Bethesda, MD USA
| | - A. J. Carvalho
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Center for Rehabilitation Sciences Research (CRSR), Uniformed Services University of the Health Sciences, Bethesda, MD USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD USA
| | - Michael Corcoran
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD USA
- Medical Orthotics and Prosthetics, Silver Spring, MD USA
| | - James Vandersea
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD USA
- Advanced Arm Dynamics, Bethesda, MD USA
| | - Elizabeth Johnson
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Center for Rehabilitation Sciences Research (CRSR), Uniformed Services University of the Health Sciences, Bethesda, MD USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD USA
| | - Yin-Ting Chen
- Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814 USA
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD USA
- Center for Rehabilitation Sciences Research (CRSR), Uniformed Services University of the Health Sciences, Bethesda, MD USA
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