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https://www.readbyqxmd.com/read/28227818/detecting-divisions-of-the-autonomic-nervous-system-using-wearables
#1
Annamalai Natarajan, Kevin S Xu, Brian Eriksson, Annamalai Natarajan, Kevin S Xu, Brian Eriksson, Kevin S Xu, Brian Eriksson, Annamalai Natarajan
The ability to assess a user's emotional reaction from biometrics has applications in personalization, recommendation, and enhancing user experiences, among other areas. Unfortunately, understanding the connection between biometric signals and user reactions has previously focused on black box techniques that are opaque to the underlying physiology of the user. In this paper, we explore a novel user study connecting biometric reaction to external stimuli and changes in the user's autonomic nervous system. Specifically, we focus on two competing responses, namely the sympathetic and parasympathetic nervous system, and how differing activations are related to different user responses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227780/impact-of-prostate-biopsy-tumor-amount-on-imaging-based-prognostics-employing-transductive-semi-supervised-regression
#2
Faisal M Khan, Casimir A Kulikowski, Faisal M Khan, Casimir A Kulikowski, Casimir A Kulikowski, Faisal M Khan
For newly diagnosed prostate cancer patients with a positive biopsy, there are a variety of treatment options to consider. To aid physicians and patients in their decision making, a variety of predictive assays have emerged within the last decade, many of them imaging based. These assays build predictive models for survival analysis to provide personalized risk assessments for the patients. However, there have rarely been any published studies on how the amount of tumor in the positive prostate biopsy affects the predictive power of these imaging based assays...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227624/relationship-between-gait-variables-and-domains-of-neurologic-dysfunction-in-multiple-sclerosis-using-six-minute-walk-test
#3
Asma Qureshi, Maite Brandt-Pearce, Myla D Goldman, Asma Qureshi, Maite Brandt-Pearce, Myla D Goldman, Asma Qureshi, Myla D Goldman, Maite Brandt-Pearce
Most multiple sclerosis (MS) patients eventually suffer from mobility impairment, and thus it is critical that walking disability in MS be accurately assessed. The six-minute walk test (6MWT), a reliable MS measure, is traditionally used to determine the distance covered in six minutes using a standard protocol. With the availability of body sensor networks (BSNs), researchers are interested in leveraging BSN data for finding new gait assessment anchors for improved separability performance. Further, current methods for gait assessments are insufficient since assessments are absolute, performed by comparing outcomes to the statistical norms established from diverse patient data despite natural inter-patient variability...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227577/blood-perfusion-display-based-on-video-pulse-wave
#4
Makoto Yoshizawa, Norihiro Sugita, Makoto Abe, Akira Tanaka, Kazuma Obara, Tsuyoshi Yamauchi, Noriyasu Homma, Tomoyuki Yambe, Makoto Yoshizawa, Norihiro Sugita, Makoto Abe, Akira Tanaka, Kazuma Obara, Tsuyoshi Yamauchi, Noriyasu Homma, Tomoyuki Yambe, Norihiro Sugita, Noriyasu Homma, Makoto Abe, Kazuma Obara, Tomoyuki Yambe, Makoto Yoshizawa, Akira Tanaka, Tsuyoshi Yamauchi
In this study, an easy system for monitoring dynamic blood perfusion patterns and the pulse wave velocity (PWV) has been developed by processing video images of a human body to assess blood circulation for daily management of physical conditions or for detecting persons in poor physical condition in public places. The experiment suggested that this tool can be used to easily evaluate the PWV; however, the obtained value from the video image of the face was about 1/10 of the standard value calculated from thick vessels...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227351/video-based-depression-detection-using-local-curvelet-binary-patterns-in-pairwise-orthogonal-planes
#5
Anastasia Pampouchidou, Kostas Marias, Manolis Tsiknakis, Panagiotis Simos, Fan Yang, Guillaume Lemaitre, Fabrice Meriaudeau, Anastasia Pampouchidou, Kostas Marias, Manolis Tsiknakis, Panagiotis Simos, Fan Yang, Guillaume Lemaitre, Fabrice Meriaudeau, Fabrice Meriaudeau, Guillaume Lemaitre, Manolis Tsiknakis, Kostas Marias, Anastasia Pampouchidou, Panagiotis Simos, Fan Yang
Depression is an increasingly prevalent mood disorder. This is the reason why the field of computer-based depression assessment has been gaining the attention of the research community during the past couple of years. The present work proposes two algorithms for depression detection, one Frame-based and the second Video-based, both employing Curvelet transform and Local Binary Patterns. The main advantage of these methods is that they have significantly lower computational requirements, as the extracted features are of very low dimensionality...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227242/noninvasive-and-continuous-blood-pressure-measurement-via-superficial-temporal-artery-tonometry
#6
Julia Canning, Kendall Helbert, Grigoriy Iashin, Jonathan Matthews, Jason Yang, Margaret K Delano, Charles G Sodini, Quan Zhang, Julia Canning, Kendall Helbert, Grigoriy Iashin, Jonathan Matthews, Jason Yang, Margaret K Delano, Charles G Sodini, Quan Zhang, Jason Yang, Margaret K Delano, Grigoriy Iashin, Jonathan Matthews, Charles G Sodini, Quan Zhang, Julia Canning, Kendall Helbert
The measurement of blood pressure is an important cardiovascular health assessment, yet the current set of methodologies is limited in resolution, repeatability, accuracy, simplicity, and safety. This paper presents the design and prototype implementation of a novel and easy-to-use medical device for noninvasive and continuous blood pressure monitoring through tonometry at the superficial temporal artery (STA). The device features a stable form factor inspired by over-ear headphones that adjusts easily from person to person using a combination prismatic and rotational joint...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227237/fusion-of-inertial-and-magnetic-sensors-for-3d-position-and-orientation-estimation
#7
P Tadayon, T Felderhoff, A Knopp, G Staude, P Tadayon, T Felderhoff, A Knopp, G Staude, G Staude, P Tadayon, T Felderhoff, A Knopp
This paper presents a new method for 3D position and orientation estimation based on the magnetic field generated by a single coil and the fusion of low power magnetometers and inertial sensors. The fixed spatial relationship between the sensors is exploited to solve the ambiguity problem that occurs when only a single coil is employed. In this context a new positioning algorithm is developed and verified by simulations. Using a single coil instead of three coils as common in conventional magnetic field based systems brings a benefit both regarding power consumption and construction size...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227136/can-ppg-be-used-for-hrv-analysis
#8
N Pinheiro, R Couceiro, J Henriques, J Muehlsteff, I Quintal, L Goncalves, P Carvalho, N Pinheiro, R Couceiro, J Henriques, J Muehlsteff, I Quintal, L Goncalves, P Carvalho, P Carvalho, J Muehlsteff, L Goncalves, N Pinheiro, J Henriques, I Quintal, R Couceiro
Heart rate variability (HRV) represents one of the most promising markers of the autonomic nervous system (ANS) regulation. However, it requires the acquisition of the ECG signal in order to reliably detect the RR intervals, which is not always easily and comfortably available in personal health applications. Additionally, due to progress in single spot optical sensors, photoplethysmography (PPG) is an interesting alternative for heartbeat interval measurements, since it is a more convenient and a less intrusive measurement technique...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227072/short-term-assessment-of-autonomic-nervous-system-as-a-potential-tool-to-quantify-pain-experience
#9
Arto J Hautala, Jaro Karppinen, Tapio Seppanen, Arto J Hautala, Jaro Karppinen, Tapio Seppanen, Jaro Karppinen, Arto J Hautala, Tapio Seppanen
Various pain conditions may result in altered autonomic nervous system regulation. We evaluated whether autonomic regulation, analyzed with short-term heart rate variability (HRV), differs between low back pain (LBP) patients and healthy controls. Additionally, we tested if short-term HRV recordings are feasible and informative in planning home monitoring of LBP patients. The study population consisted of 16 volunteers (8 LBP patients and 8 healthy subjects) (age 42±10 years, body mass index 26±4 kg/m(2), 7 men and 9 women)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226832/detection-of-compensatory-balance-responses-using-wearable-electromyography-sensors-for-fall-risk-assessment
#10
Mina Nouredanesh, Sunil L Kukreja, James Tung, Mina Nouredanesh, Sunil L Kukreja, James Tung, Mina Nouredanesh, Sunil L Kukreja, James Tung
Loss of balance is prevalent in older adults and populations with gait and balance impairments. The present paper aims to develop a method to automatically distinguish compensatory balance responses (CBRs) from normal gait, based on activity patterns of muscles involved in maintaining balance. In this study, subjects were perturbed by lateral pushes while walking and surface electromyography (sEMG) signals were recorded from four muscles in their right leg. To extract sEMG time domain features, several filtering characteristics and segmentation approaches are examined...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226049/predictors-for-the-functional-incapacity-of-the-elderly-in-primary-health-care
#11
Lívia Carvalho Pereira, Maria do Livramento Fortes Figueiredo, Cinara Maria Feitosa Beleza, Elaine Maria Leite Rangel Andrade, Maria Josefina da Silva, Antonio Francisco Machado Pereira
Objectives: to assess the predictors for the functional incapacity of the elderly in primary health care. Method: cross-sectional study, of which 388 older people participated, conducted in three Primary health care Units, using the Katz index and Lawton's scale. The research project was approved by the Research Ethics Committee. Results: regarding the degree of dependency for Basic Activities, 90.2% were less independent for dressing themselves; and for Instrumental Activities, 77...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28225508/suicidal-ideation-vs-suicide-attempts-clinical-and-psychosocial-profile-differences-among-depressed-patients-a-study-on-personality-traits-psychopathological-variables-and-sociodemographic-factors-in-228-patients
#12
Ute Lewitzka, Sina Spirling, Dirk Ritter, Michael Smolka, Sarah Goodday, Michael Bauer, Werner Felber, Tom Bschor
This study investigated whether personality traits, psychopathological characteristics, and sociodemographic factors in depressed patients differentiate patients with only suicidal thoughts from those who have attempted suicide. We investigated two groups of patients with an affective disorder: 198 patients with a suicide attempt within the last 3 months (sex ratio male to female, 1:1.3; mean age male to female, 44.8/44.7 years) and 30 patients without a suicide attempt but with suicidal thoughts (sex ratio male to female, 1:2; mean age male to female, 39...
February 20, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28225476/comparative-postural-control-in-copd-patients-and-healthy-individuals-during-dynamic-and-static-activities
#13
Elias F Porto, Cristiane O Pradella, Carolina M Rocco, Mario Chueiro, Rafaella Q Maia, Fernando F Ganança, Antonio A M Castro, Oliver A Nascimento, José R Jardim
PURPOSE: Patients with chronic obstructive pulmonary disease (COPD) have body balance deficits, with consequent fall risk. It is possible that body sway in patients with COPD affects their ability to perform daily activities. The purpose of this study was to determine whether body balance is similar in patients with COPD and healthy persons when performing static and dynamic activities. In addition, we wanted to assess whether impairment of balance is related to the presence of falls in patients with COPD...
March 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28225462/validity-evidence-from-ratings-of-pediatric-interns-and-subinterns-on-a-subset-of-pediatric-milestones
#14
Teri L Turner, Vasudha L Bhavaraju, Ulana A Luciw-Dubas, Patricia J Hicks, Sara Multerer, Amanda Osta, Jennifer McDonnell, Sue Poynter, Daniel J Schumacher, Rebecca Tenney-Soeiro, Linda Waggoner-Fountain, Alan Schwartz
PURPOSE: To investigate evidence for validity of faculty members' pediatric milestone (PM) ratings of interns (first-year residents) and subinterns (fourth-year medical students) on nine subcompetencies related to readiness to serve as a pediatric intern in the inpatient setting. METHOD: The Association of Pediatric Program Directors Longitudinal Educational Assessment Research Network (APPD LEARN) and the National Board of Medical Examiners collaborated to investigate the utility of assessments of the PMs for trainees' performance...
February 21, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28225420/committee-opinion-no-690-summary-carrier-screening-in-the-age-of-genomic-medicine
#15
(no author information available yet)
Carrier screening, whether targeted or expanded, allows individuals to consider their range of reproductive options. Ultimately, the goal of genetic screening is to provide individuals with meaningful information that they can use to guide pregnancy planning based on their personal values. Ethnic-specific, panethnic, and expanded carrier screening are acceptable strategies for prepregnancy and prenatal carrier screening. Because all of these are acceptable strategies, each obstetrician-gynecologist or other health care provider or practice should establish a standard approach that is consistently offered to and discussed with each patient, ideally before pregnancy...
March 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28225371/measurement-of-perceived-stress-in-age-related-macular-degeneration
#16
Bradley E Dougherty, San-San L Cooley, Frederick H Davidorf
PURPOSE: To validate the Perceived Stress Scale (PSS) in patients with age-related macular degeneration (AMD) using Rasch analysis. METHODS: Study participants with AMD were recruited from the retina service of the Department of Ophthalmology at the Ohio State University during clinical visits for treatment or observation. Visual acuity with habitual distance correction was assessed. A 10-item version of the PSS was administered in large print or by reading the items to the patient...
March 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28225344/tuberculosis-among-the-homeless-should-we-change-the-strategy
#17
M Dias, R Gaio, P Sousa, M Abranches, M Gomes, O Oliveira, M Correia-Neves, E Ferreira, R Duarte
BACKGROUND: Tuberculosis (TB) is a major concern among high-risk populations such as the homeless. OBJECTIVES: To evaluate TB incidence and treatment outcomes among homeless patients in Portugal and to identify predictors of unsuccessful TB treatment outcomes among the homeless. DESIGN: This was a retrospective cohort study of all TB patients notified in Portugal from 2008 to 2014. Characteristics of homeless TB patients were assessed and predictors of unsuccessful TB treatment were determined using logistic regression...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225343/infection-control-and-tuberculosis-in-health-care-workers-an-assessment-of-28-hospitals-in-south-africa
#18
L M O'Hara, A Yassi, E A Bryce, A Janse van Rensburg, M C Engelbrecht, M Zungu, L E Nophale, J M FitzGerald
SETTING: Twenty-eight public hospitals in the Free State Province, South Africa. OBJECTIVE: To examine the association between tuberculosis (TB) infection control (IC) scores in Free State hospitals and the incidence of TB disease among health care workers (HCWs) in 2012. DESIGN: A cross-sectional survey and mixed-methods analysis of TB IC policies, practices and infrastructure using a comprehensive, 83-item IC audit and observation tool. RESULTS: As the total IC score increased, the probability of TB in an HCW at that hospital decreased...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225273/fabric-softener-cellulose-nanocrystal-interaction-a-model-for-assessing-surfactant-deposition-on-cotton
#19
Evdokia K Oikonomou, Fanny Mousseau, Nikolay Christov, Galder Cristobal, Annie Vacher, Marc Airiau, Claudie Bourgaux, Laurent Heux, Jean-François Berret
There is currently a renewed interest for improving household and personal care formulations to provide more environment friendly products. Fabric conditioners used as softeners have to fulfill a number of stability and biodegradability requirements. They should also display significant adsorption on cotton in the conditions of use. The quantification of surfactant adsorption remains however difficult because the fabric woven structure is complex and deposited amounts are generally small. Here we propose a method to evaluate cellulose/surfactant interactions with increased detection sensitivity...
February 22, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28224973/tobacco-smoking-in-poland-in-2003-2014-multi-centre-national-population-health-examination-survey-wobasz
#20
Maria Polakowska, Dorota Kaleta, Walerian Piotrowski, Roman Topór-Mądry, Aleksandra Puch-Walczak, Arkadiusz Niklas, Wojciech Bielecki, Krystyna Kozakiewicz, Andrzej Pająk, Andrzej Tykarski, Tomasz Zdrojewski, Wojciech Drygas On Behalf Of Wobasz
INTRODUCTION    The reduction of tobacco smoking is a challenging problem of public health. OBJECTIVES    The main purpose of this work was to evaluate the prevalence and tobacco use patterns in the adult population of Poles and its changes in a period between year 2003 and 2014. Furthermore, changes in the smoking addiction, the declared reasons for smoking as well as readiness and motivation to stop smoking has been assessed.  PATIENTS AND METHODS    Based on data from the Polish studies - WOBASZ and WOBASZ II, the analysis covered a population of 14576 persons from the 1st study (6906 men and 7670 women) and 5696 persons from the 2nd study (2578 men and 3118 women), aged 20 - 74...
January 17, 2017: Polskie Archiwum Medycyny Wewnętrznej
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