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https://www.readbyqxmd.com/read/28203122/evaluation-of-the-effect-of-radiofrequency-radiation-emitted-from-wi-fi-router-and-mobile-phone-simulator-on-the-antibacterial-susceptibility-of-pathogenic-bacteria-listeria-monocytogenes-and-escherichia-coli
#1
M Taheri, S M J Mortazavi, M Moradi, S Mansouri, G R Hatam, F Nouri
Mobile phones and Wi-Fi radiofrequency radiation are among the main sources of the exposure of the general population to radiofrequency electromagnetic fields (RF-EMF). Previous studies have shown that exposure of microorganisms to RF-EMFs can be associated with a wide spectrum of changes ranged from the modified bacterial growth to the alterations of the pattern of antibiotic resistance. Our laboratory at the nonionizing department of the Ionizing and Non-ionizing Radiation Protection Research Center has performed experiments on the health effects of exposure to animal models and humans to different sources of electromagnetic fields such as cellular phones, mobile base stations, mobile phone jammers, laptop computers, radars, dentistry cavitrons, magnetic resonance imaging, and Helmholtz coils...
January 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28194082/internet-use-at-workplaces-and-its-effects-on-working-style-in-indian-context-an-exploration
#2
Apoorva Shrivastava, Manoj K Sharma, P Marimuthu
BACKGROUND: Internet use has revolutionized the pattern of working style at the workplace. It led to an increased use for nonprofessional activities at the workplace. It has been shown to affect productivity at the workplace. There is a dearth of literature from the Indian context in this area. AIM: This study was conducted to explore the pattern of Internet use at the workplace and its dysfunctions. SETTING AND DESIGN: The present study was a cross-sectional prospective study...
May 2016: Indian Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28193871/optimizing-virtual-reality-for-all-users-through-gaze-contingent-and-adaptive-focus-displays
#3
Nitish Padmanaban, Robert Konrad, Tal Stramer, Emily A Cooper, Gordon Wetzstein
From the desktop to the laptop to the mobile device, personal computing platforms evolve over time. Moving forward, wearable computing is widely expected to be integral to consumer electronics and beyond. The primary interface between a wearable computer and a user is often a near-eye display. However, current generation near-eye displays suffer from multiple limitations: they are unable to provide fully natural visual cues and comfortable viewing experiences for all users. At their core, many of the issues with near-eye displays are caused by limitations in conventional optics...
February 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28192915/portable-dielectric-barrier-discharge-atomic-emission-spectrometer
#4
Na Li, Zhongchen Wu, Yingying Wang, Jing Zhang, Xiangnan Zhang, Hengnan Zhang, Wenhai Wu, Jing Gao, Jie Jiang
This paper describes the first demonstration of a portable dielectric barrier discharge-atomic emission spectrometer (DBD-AES). The instrument primarily consists of a miniature electro-thermal vaporizer (ETV), DBD, and optical signal acquisition units. It weighs only 4.5 kg and is powered by a 24 V DC battery with a maximum power consumption of 37 W. The accompanying software can be operated on a laptop computer. A specially designed quartz tube integrates the ETV unit with the DBD chamber. The effects of experimental parameters were investigated...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28182528/logged-in-and-zoned-out
#5
Susan M Ravizza, Mitchell G Uitvlugt, Kimberly M Fenn
Laptop computers are widely prevalent in university classrooms. Although laptops are a valuable tool, they offer access to a distracting temptation: the Internet. In the study reported here, we assessed the relationship between classroom performance and actual Internet usage for academic and nonacademic purposes. Students who were enrolled in an introductory psychology course logged into a proxy server that monitored their online activity during class. Past research relied on self-report, but the current methodology objectively measured time, frequency, and browsing history of participants' Internet usage...
February 2017: Psychological Science
https://www.readbyqxmd.com/read/28157405/an-assessment-of-pathology-resident-access-to-and-use-of-technology-a-nationwide-survey
#6
Bethany D Vallangeon, Jeffrey S Hawley, Richard Sloane, Sarah M Bean
CONTEXT: -Current technologies including digital slide scanners and handheld devices can revolutionize clinical practice and pathology graduate medical education (GME). The extent to which these technologies are used in pathology GME is unknown. OBJECTIVES: -To determine the types of technologies used, usage amount, and how they are integrated into pathology residency/fellowship programs nationwide. DESIGN: -A 40-question online survey for residents/fellows was developed and administered via the Research Electronic Data Capture System after institutional review board approval...
February 3, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28144597/the-fundamental-reasons-why-laptop-computers-should-not-be-used-on-your-lap
#7
S A R Mortazavi, S Taeb, S M J Mortazavi, S Zarei, M Haghani, P Habibzadeh, M B Shojaei-Fard
As a tendency to use new technologies, gadgets such as laptop computers are becoming more popular among students, teachers, businessmen and office workers. Today laptops are a great tool for education and learning, work and personal multimedia. Millions of men, especially those in the reproductive age, are frequently using their laptop computers on the lap (thigh). Over the past several years, our lab has focused on the health effects of exposure to different sources of electromagnetic fields such as cellular phones, mobile base stations, mobile phone jammers, laptop computers, radars, dentistry cavitrons and Magnetic Resonance Imaging (MRI)...
December 2016: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28138796/javascript-access-to-dicom-network-and-objects-in-web-browser
#8
Ivan Drnasin, Mislav Grgić, Goran Gogić
Digital imaging and communications in medicine (DICOM) 3.0 standard provides the baseline for the picture archiving and communication systems (PACS). The development of Internet and various communication media initiated demand for non-DICOM access to PACS systems. Ever-increasing utilization of the web browsers, laptops and handheld devices, as opposed to desktop applications and static organizational computers, lead to development of different web technologies. The DICOM standard officials accepted those subsequently as tools of alternative access...
January 30, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28138415/wireless-web-based-interactive-control-of-optical-coherence-tomography-with-mobile-devices
#9
Rajvi Mehta, Derek Nankivil, David J Zielinski, Gar Waterman, Brenton Keller, Alexander T Limkakeng, Regis Kopper, Joseph A Izatt, Anthony N Kuo
PURPOSE: Optical coherence tomography (OCT) is widely used in ophthalmology clinics and has potential for more general medical settings and remote diagnostics. In anticipation of remote applications, we developed wireless interactive control of an OCT system using mobile devices. METHODS: A web-based user interface (WebUI) was developed to interact with a handheld OCT system. The WebUI consisted of key OCT displays and controls ported to a webpage using HTML and JavaScript...
January 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28122120/video-based-eye-tracking-for-neuropsychiatric-assessment
#10
Sam Adhikari, David E Stark
This paper presents a video-based eye-tracking method, ideally deployed via a mobile device or laptop-based webcam, as a tool for measuring brain function. Eye movements and pupillary motility are tightly regulated by brain circuits, are subtly perturbed by many disease states, and are measurable using video-based methods. Quantitative measurement of eye movement by readily available webcams may enable early detection and diagnosis, as well as remote/serial monitoring, of neurological and neuropsychiatric disorders...
January 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28113661/lamb-wave-multi-touch-ultrasonic-touchscreen
#11
Kamyar Firouzi, Amin Nikoozadeh, Thomas Carver, Butrus Khuri-Yakub
Touchscreen sensors are widely used in many devices such as smart phones, tablets, laptops, etc., with diverse applications. We present the design, analysis, and implementation of an ultrasonic touchscreen system that utilizes interaction of transient Lamb waves with objects in contact with the screen. It attempts to improve on the existing ultrasound technologies, with the potential of addressing some of the weaknesses of the dominant technologies, such as the capacitive or resistive ones. Compared to the existing ultrasonic and acoustic modalities, among other advantages, it provides the capability of detecting several simultaneous touch points, and also a more robust performance...
September 13, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28096741/a-day-in-the-life-of-third-year-medical-students-using-an-ethnographic-method-to-understand-information-seeking-and-use
#12
Andrea B Twiss-Brooks, Ricardo Andrade, Michelle B Bass, Barbara Kern, Jonna Peterson, Debra A Werner
OBJECTIVE: The authors undertook this project to learn how third-year medical students seek and use information in the course of daily activities, especially activities conducted in clinical settings in a variety of institutions. METHODS: We recruited sixty-eight third-year undergraduate medical school students to create a mapping diary of a day that included clinical activities. We conducted semi-structured interviews based on the mapping diaries. Using content and thematic analyses of the resulting interview transcripts, we developed an ethnographic case study for each participant...
January 2017: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/28096066/-happiness-inventors-informing-positive-computing-technologies-through-participatory-design-with-children
#13
Svetlana Yarosh, Stephen Matthew Schueller
BACKGROUND: Positive psychological interventions for children have typically focused on direct adaptations of interventions developed for adults. As the community moves toward designing positive computing technologies to support child well-being, it is important to use a more participatory process that directly engages children's voices. OBJECTIVE: Our objectives were, through a participatory design study, to understand children's interpretations of positive psychology concepts, as well as their perspectives on technologies that are best suited to enhance their engagement with practice of well-being skills...
January 17, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28060526/effects-of-dual-monitor-computer-work-versus-laptop-work-on-cervical-muscular-and-proprioceptive-characteristics-of-males-and-females
#14
Amanda M Farias Zuniga, Julie N Côté
OBJECTIVE: The effects of performing a 90-minute computer task with a laptop versus a dual monitor desktop workstation were investigated in healthy young male and female adults. BACKGROUND: Work-related musculoskeletal disorders are common among computer (especially female) users. Laptops have surpassed desktop computer sales, and working with multiple monitors has also become popular. However, few studies have provided objective evidence on how they affect the musculoskeletal system in both genders...
December 1, 2016: Human Factors
https://www.readbyqxmd.com/read/28047164/su-f-t-336-a-quick-auto-planning-qap-method-for-patient-intensity-modulated-radiotherapy-imrt
#15
J Peng, Z Zhang, J Wang, J Xie, S Lu, J Zhao, W Hu
PURPOSE: The aim of this study is to develop a quick auto-planning system that permits fast patient IMRT planning with conformal dose to the target without manual field alignment and time-consuming dose distribution optimization. METHODS: The planning target volume (PTV) of the source and the target patient were projected to the iso-center plane in certain beameye- view directions to derive the 2D projected shapes. Assuming the target interior was isotropic for each beam direction boundary analysis under polar coordinate was performed to map the source shape boundary to the target shape boundary to derive the source-to-target shape mapping function...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047124/su-f-t-468-efficient-scanning-data-analysis-for-tomotherapy
#16
B Sintay, K Pearman, J Maurer, H Liu, T Hayes, D Wiant
PURPOSE: The standard TomoTherapy 2D scanning system requires manual analysis using spreadsheets or similar software. Manual analysis is time consuming and does not allow efficient use of the medical physicist or timely results that may indicate issues during the acquisition of data. The purpose of this study is to determine if an in-house solution can provide timely analysis of TomoTherapy scan data. METHODS: A custom MATLAB program utilizing a streamlined graphical interface was developed to interpret the native scanning data acquired by the TomoTherapy Electrometer Measurement System (TEMS)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040630/pace-probabilistic-assessment-for-contributor-estimation-a-machine-learning-based-assessment-of-the-number-of-contributors-in-dna-mixtures
#17
Michael A Marciano, Jonathan D Adelman
The deconvolution of DNA mixtures remains one of the most critical challenges in the field of forensic DNA analysis. In addition, of all the data features required to perform such deconvolution, the number of contributors in the sample is widely considered the most important, and, if incorrectly chosen, the most likely to negatively influence the mixture interpretation of a DNA profile. Unfortunately, most current approaches to mixture deconvolution require the assumption that the number of contributors is known by the analyst, an assumption that can prove to be especially faulty when faced with increasingly complex mixtures of 3 or more contributors...
November 24, 2016: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28034614/system-dynamics-applied-to-closed-loop-supply-chains-of-desktops-and-laptops-in-brazil-a-perspective-for-social-inclusion-of-waste-pickers
#18
Verônica Ghisolfi, Gisele de Lorena Diniz Chaves, Renato Ribeiro Siman, Lúcia Helena Xavier
The structure of reverse logistics for waste electrical and electronic equipment (WEEE) is essential to minimize the impacts of their improper disposal. In this context, the Brazilian Solid Waste Policy (BSWP) was a regulatory milestone in Brazil, submitting WEEE to the mandatory implementation of reverse logistics systems, involving the integration of waste pickers on the shared responsibility for the life cycle of products. This article aims to measure the impact of such legal incentives and the bargaining power obtained by the volume of collected waste on the effective formalization of waste pickers...
December 26, 2016: Waste Management
https://www.readbyqxmd.com/read/28031210/randomised-feasibility-study-of-a-novel-experience-based-internet-intervention-to-support-self-management-in-chronic-asthma
#19
Nikki Newhouse, Angela Martin, Sena Jawad, Ly-Mee Yu, Mina Davoudianfar, Louise Locock, Sue Ziebland, John Powell
OBJECTIVE: To determine the feasibility of a randomised controlled trial (RCT) assessing the effects of an experience-based website as a resource for the self-management of chronic asthma. DESIGN AND SETTING: Feasibility, single-blind RCT in 2 regions of England. Randomisation used computer-generated random number sequence in a 1:1 ratio, after baseline data collection, to website access for 2 weeks. PARTICIPANTS: Adults (age ≥18 years), with clinically diagnosed asthma as coded in their primary care electronic record, prescribed inhaled corticosteroids for at least 3 months in the previous year, were recruited from 9 general practices...
December 28, 2016: BMJ Open
https://www.readbyqxmd.com/read/28031034/uqlust-combining-profile-hashing-with-linear-time-ranking-for-efficient-clustering-and-analysis-of-big-macromolecular-data
#20
Rafal Adamczak, Jarek Meller
BACKGROUND: Advances in computing have enabled current protein and RNA structure prediction and molecular simulation methods to dramatically increase their sampling of conformational spaces. The quickly growing number of experimentally resolved structures, and databases such as the Protein Data Bank, also implies large scale structural similarity analyses to retrieve and classify macromolecular data. Consequently, the computational cost of structure comparison and clustering for large sets of macromolecular structures has become a bottleneck that necessitates further algorithmic improvements and development of efficient software solutions...
December 28, 2016: BMC Bioinformatics
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