keyword
MENU ▼
Read by QxMD icon Read
search

Mixed reality

keyword
https://www.readbyqxmd.com/read/28439471/exergames-for-women-with-fibromyalgia-a-randomised-controlled-trial-to-evaluate-the-effects-on-mobility-skills-balance-and-fear-of-falling
#1
Daniel Collado-Mateo, Francisco J Dominguez-Muñoz, Jose C Adsuar, Eugenio Merellano-Navarro, Narcis Gusi
BACKGROUND: Exergames are a new form of rehabilitation that combine the characteristics of physical exercise and the benefits of non-immersive virtual reality (VR). Effects of this novel therapy in women fibromyalgia are still unknown. The objective was to evaluate the effects of exergame-based intervention on mobility skills, balance and fear of falling in women with fibromyalgia. METHODS: This study was a randomized controlled trial with concealed allocation. Seventy-six women with fibromyalgia were divided into two groups: the exercise group received an eight week intervention based on exergames, while the control group continued their usual activities...
2017: PeerJ
https://www.readbyqxmd.com/read/28395855/assessing-the-use-of-immersive-virtual-reality-mouse-and-touchscreen-in-pointing-and-dragging-and-dropping-tasks-among-young-middle-aged-and-older-adults
#2
Jiayin Chen, Calvin Or
This study assessed the use of an immersive virtual reality (VR), a mouse and a touchscreen for one-directional pointing, multi-directional pointing, and dragging-and-dropping tasks involving targets of smaller and larger widths by young (n = 18; 18-30 years), middle-aged (n = 18; 40-55 years) and older adults (n = 18; 65-75 years). A three-way, mixed-factorial design was used for data collection. The dependent variables were the movement time required and the error rate. Our main findings were that the participants took more time and made more errors in using the VR input interface than in using the mouse or the touchscreen...
April 7, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28358681/fast-nonlinear-ultrasound-propagation-simulation-using-a-slowly-varying-envelope-approximation
#3
Francois Varray, Matthieu Toulemonde, Adeline Bernard, Olivier Basset, Christian Cachard
Medical systems usually consider linear propagation of ultrasound, an approximation of reality. However, numerous studies have attempted to accurately simulate the nonlinear pressure wave distortion and to evaluate the contribution of harmonic frequencies. In such simulations, the computation time is very large, except for the method based on the angular spectrum scheme where the derivative order is reduced using the Fourier transform. However, the harmonic computation is usually limited to the second harmonic because of quasi-linear approximation...
March 24, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28343301/comparison-of-optical-see-through-head-mounted-displays-for-surgical-interventions-with-object-anchored-2d-display
#4
Long Qian, Alexander Barthel, Alex Johnson, Greg Osgood, Peter Kazanzides, Nassir Navab, Bernhard Fuerst
PURPOSE: Optical see-through head-mounted displays (OST-HMD) feature an unhindered and instantaneous view of the surgery site and can enable a mixed reality experience for surgeons during procedures. In this paper, we present a systematic approach to identify the criteria for evaluation of OST-HMD technologies for specific clinical scenarios, which benefit from using an object-anchored 2D-display visualizing medical information. METHODS: Criteria for evaluating the performance of OST-HMDs for visualization of medical information and its usage are identified and proposed...
March 25, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28329867/effectiveness-of-a-virtual-reality-forest-on-people-with-dementia-a-mixed-methods-pilot-study
#5
Wendy Moyle, Cindy Jones, Toni Dwan, Tanya Petrovich
Purpose of the Study: To measure and describe the effectiveness of a Virtual Reality Forest (VRF) on engagement, apathy, and mood states of people with dementia, and explore the experiences of staff, people with dementia and their families. Design and Methods: A mixed-methods study conducted between February and May 2016. Ten residents with dementia, 10 family members, and 9 care staff were recruited from 2 residential aged care facilities, operated by one care provider, located in Victoria, Australia...
March 15, 2017: Gerontologist
https://www.readbyqxmd.com/read/28321132/the-outcomes-of-health-promoting-communities-being-active-eating-well-initiative-a-community-based-obesity-prevention-intervention-in-victoria-australia
#6
K A Bolton, P Kremer, L Gibbs, E Waters, B Swinburn, A de Silva
OBJECTIVE: To evaluate the impact of the Health Promoting Communities: Being Active Eating Well (HPC:BAEW, 2007-2010) initiative which comprised of community-based multi-component interventions adapted to community context in five separate communities. The intervention aimed to promote healthy eating, physical activity and stronger, healthier communities. METHODS: A mixed method and multi-level quasi-experimental evaluation of the HPC:BAEW initiative captured process, impact and outcome data...
March 21, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28279843/experiential-exposure-to-texting-and-walking-in-virtual-reality-a-randomized-trial-to-reduce-distracted-pedestrian-behavior
#7
David C Schwebel, Leslie A McClure, Bryan E Porter
BACKGROUND: Distracted pedestrian behavior is a significant public health concern, as research suggests distracted pedestrians have significantly higher risk of injury compared to fully attentive pedestrians. Despite this, efforts to reduce distracted pedestrian behavior are scant. OBJECTIVE: Using a repeated measures experimental research design, we implemented a behavioral intervention to reduce distracted pedestrian behavior in the high-risk environment of an urban college campus and simultaneously monitored behavior on a control urban college campus not exposed to the intervention...
May 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28277817/motivation-in-pediatric-motor-rehabilitation-a-systematic-search-of-the-literature-using-the-self-determination-theory-as-a-conceptual-framework
#8
Pieter Meyns, Tine Roman de Mettelinge, Judith van der Spank, Marieke Coussens, Hilde Van Waelvelde
OBJECTIVE: Motivation is suggested as an important factor in pediatric motor rehabilitation. Therefore, we reviewed the existing evidence of (motivational) motor rehabilitation paradigms, and how motivation influences rehabilitation outcome using self-determination theory as conceptual framework. METHODS: PubMed and Web-of-Science databases were systematically searched until June 2015. Data were independently extracted and critiqued for quality by three authors...
March 9, 2017: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/28256209/an-investigation-of-the-efficacy-of-collaborative-virtual-reality-systems-for-moderated-remote-usability-testing
#9
Kapil Chalil Madathil, Joel S Greenstein
Collaborative virtual reality-based systems have integrated high fidelity voice-based communication, immersive audio and screen-sharing tools into virtual environments. Such three-dimensional collaborative virtual environments can mirror the collaboration among usability test participants and facilitators when they are physically collocated, potentially enabling moderated usability tests to be conducted effectively when the facilitator and participant are located in different places. We developed a virtual collaborative three-dimensional remote moderated usability testing laboratory and employed it in a controlled study to evaluate the effectiveness of moderated usability testing in a collaborative virtual reality-based environment with two other moderated usability testing methods: the traditional lab approach and Cisco WebEx, a web-based conferencing and screen sharing approach...
February 27, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28255093/what-drives-inappropriate-antibiotic-dispensing-a-mixed-methods-study-of-pharmacy-employee-perspectives-in-haryana-india
#10
Anna K Barker, Kelli Brown, Muneeb Ahsan, Sharmila Sengupta, Nasia Safdar
OBJECTIVES: There are only 0.70 licensed physicians per 1000 people in India. Thus, pharmacies are a primary source of healthcare and patients often seek their services directly, especially in village settings. However, there is wide variability in a pharmacy employee's training, which contributes to inappropriate antibiotic dispensing and misuse. These practices increase the risk of antibiotic resistance and poor patient outcomes. This study seeks to better understand the factors that drive inappropriate antibiotic dispensing among pharmacy employees in India's village communities...
March 2, 2017: BMJ Open
https://www.readbyqxmd.com/read/28219378/from-urban-planning-and-emergency-training-to-pok%C3%A3-mon-go-applications-of-virtual-reality-gis-vrgis-and-augmented-reality-gis-argis-in-personal-public-and-environmental-health
#11
EDITORIAL
Maged N Kamel Boulos, Zhihan Lu, Paul Guerrero, Charlene Jennett, Anthony Steed
The latest generation of virtual and mixed reality hardware has rekindled interest in virtual reality GIS (VRGIS) and augmented reality GIS (ARGIS) applications in health, and opened up new and exciting opportunities and possibilities for using these technologies in the personal and public health arenas. From smart urban planning and emergency training to Pokémon Go, this article offers a snapshot of some of the most remarkable VRGIS and ARGIS solutions for tackling public and environmental health problems, and bringing about safer and healthier living options to individuals and communities...
February 20, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28197341/a-mixed-methods-small-pilot-study-to-describe-the-effects-of-upper-limb-training-using-a-virtual-reality-gaming-system-in-people-with-chronic-stroke
#12
Rachel C Stockley, Deborah A O'Connor, Phil Smith, Sylvia Moss, Lizzie Allsop, Wendy Edge
Introduction. This small pilot study aimed to examine the feasibility of an upper limb rehabilitation system (the YouGrabber) in a community rehabilitation centre, qualitatively explore participant experiences, and describe changes after using it. Methods and Material. Chronic stroke participants attending a community rehabilitation centre in the UK were randomised to either a YouGrabber or a gym group and completed 18 training sessions over 12 weeks. The motor activity log, box and block, and fatigue severity score were administered by a blinded assessor before and after the intervention...
2017: Rehabilitation Research and Practice
https://www.readbyqxmd.com/read/28196508/erratum-to-effect-of-a-mixed-reality-based-intervention-on-arm-hand-and-finger-function-on-chronic-stroke
#13
Carolina Colomer, Roberto Llorens, Enrique Noé, Mariano Alcañiz
No abstract text is available yet for this article.
February 14, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28184207/analysis-of-mental-workload-in-online-shopping-are-augmented-and-virtual-reality-consistent
#14
Xiaojun Zhao, Changxiu Shi, Xuqun You, Chenming Zong
A market research company (Nielsen) reported that consumers in the Asia-Pacific region have become the most active group in online shopping. Focusing on augmented reality (AR), which is one of three major techniques used to change the method of shopping in the future, this study used a mixed design to discuss the influences of the method of online shopping, user gender, cognitive style, product value, and sensory channel on mental workload in virtual reality (VR) and AR situations. The results showed that males' mental workloads were significantly higher than females'...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28158947/ambiguous-bodies-uncertain-diseases-knowledge-of-cervical-cancer-in-papua-new-guinea
#15
A Kelly-Hanku, S Ase, V Fiya, P Toliman, H Aeno, G M Mola, J M Kaldor, L M Vallely, A J Vallely
OBJECTIVES: Within their local realities, people experience and interpret disease in diverse ways that do not necessarily correlate or converge with Western biomedical interventions. In the high cervical cancer burden setting of Papua New Guinea, understanding how people experience and interpret cervical cancer is necessary for effective intervention. Drawing on work by Street on the production of unstable biomedical knowledge, we explored how ambiguity and uncertainty, coupled with cultural taboos and linguistic limitations, affect what and how people 'know' about women's reproductive organs and their associated disease...
February 3, 2017: Ethnicity & Health
https://www.readbyqxmd.com/read/28158092/alternate-optical-designs-for-head-mounted-displays-with-a-wide-field-of-view
#16
Bo Chen, Alois M Herkommer
The most widely applied design form for mixed reality head-mounted display (HMD) systems is generally a prism with one surface in total internal reflection (TIR). This, however, limits the angle of the incident rays, and thus decreases the design freedom and affects the performance. To obtain better performance of the HMD optics, in this paper two seldom used design forms of HMD systems are presented and compared to the standard TIR HMD optics. One of them is a catadioptric HMD system, consisting of one lens and two mirrors; the other is a prism HMD with a different folding geometry...
February 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28155205/a-pilot-study-to-determine-whether-combinations-of-objectively-measured-activity-parameters-can-be-used-to-differentiate-between-mixed-states-mania-and-bipolar-depression
#17
Jan Scott, Arne E Vaaler, Ole Bernt Fasmer, Gunnar Morken, Karoline Krane-Gartiser
BACKGROUND: Until recently, actigraphy studies in bipolar disorders focused on sleep rather than daytime activity in mania or depression, and have failed to analyse mixed episodes separately. Furthermore, even those studies that assessed activity parameters reported only mean levels rather than complexity or predictability of activity. We identified cases presenting in one of three acute phases of bipolar disorder and examined whether the application of non-linear dynamic models to the description of objectively measured activity can be used to predict case classification...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28153742/adoption-decision-making-among-women-seeking-abortion
#18
Gretchen Sisson, Lauren Ralph, Heather Gould, Diana Greene Foster
BACKGROUND: Little is known about how adoption factors into pregnancy decision making, particularly when abortion is unavailable. METHODS: We used data from the Turnaway Study, a longitudinal study of 956 women seeking abortion, including 231 women denied abortions owing to gestational limits. Through semiannual quantitative interviews, we assessed the frequency with which women denied abortion considered and choose adoption, and, among adoption participants, decision satisfaction...
January 30, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28150713/discovering-missing-reactions-of-metabolic-networks-by-using-gene-co-expression-data
#19
Zhaleh Hosseini, Sayed-Amir Marashi
Flux coupling analysis is a computational method which is able to explain co-expression of metabolic genes by analyzing the topological structure of a metabolic network. It has been suggested that if genes in two seemingly fully-coupled reactions are not highly co-expressed, then these two reactions are not fully coupled in reality, and hence, there is a gap or missing reaction in the network. Here, we present GAUGE as a novel approach for gap filling of metabolic networks, which is a two-step algorithm based on a mixed integer linear programming formulation...
February 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28141522/altering-user-movement-behaviour-in-virtual-environments
#20
Adalberto L Simeone, Ifigeneia Mavridou, Wendy Powell
In immersive Virtual Reality systems, users tend to move in a Virtual Environment as they would in an analogous physical environment. In this work, we investigated how user behaviour is affected when the Virtual Environment differs from the physical space. We created two sets of four environments each, plus a virtual replica of the physical environment as a baseline. The first focused on aesthetic discrepancies, such as a water surface in place of solid ground. The second focused on mixing immaterial objects together with those paired to tangible objects...
April 2017: IEEE Transactions on Visualization and Computer Graphics
keyword
keyword
111481
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"