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https://www.readbyqxmd.com/read/29213190/smartphone-based-imaging-of-the-corneal-endothelium-at-sub-cellular-resolution
#1
Devrim Toslak, Damber Thapa, Muhammet Kazim Erol, Yanjun Chen, Xincheng Yao
This aim of this study was to test the feasibility of smartphone-based specular microscopy of the corneal endothelium at a sub-cellular resolution. Quantitative examination of endothelial cells is essential for evaluating corneal disease such as determining a diagnosis, monitoring progression and assessing treatment. Smartphone-based technology promises a new opportunity to develop affordable devices to foster quantitative examination of endothelial cells in rural and underserved areas. In our study, we incorporated an iPhone 6 and a slit lamp to demonstrate the feasibility of smartphone-based microscopy of the corneal endothelium at a sub-cellular resolution...
2017: Journal of Modern Optics
https://www.readbyqxmd.com/read/29200611/serial-position-output-order-and-list-length-effects-for-words-presented-on-smartphones-over-very-long-intervals
#2
Cathleen Cortis Mack, Caterina Cinel, Nigel Davies, Michael Harding, Geoff Ward
Three experiments examined whether or not benchmark findings observed in the immediate retrieval from episodic memory are similarly observed over much greater time-scales. Participants were presented with experimentally-controlled lists of words at the very slow rate of one word every hour using an iPhone recall application, RECAPP, which was also used to recall the words in either any order (free recall: Experiments 1 to 3) or the same order as presented (serial recall: Experiment 3). We found strong temporal contiguity effects, weak serial position effects with very limited recency, and clear list length effects in free recall; clear primacy effects and classic error gradients in serial recall; and recency effects in a final two-alternative forced choice recognition task (Experiments 2 and 3)...
December 2017: Journal of Memory and Language
https://www.readbyqxmd.com/read/29199986/a-low-cost-method-for-visible-fluorescence-imaging
#3
Crissy L Tarver, Marc Pusey
A wide variety of crystallization solutions are screened to establish conditions that promote the growth of a diffraction-quality crystal. Screening these conditions requires the assessment of many crystallization plates for the presence of crystals. Automated systems for screening and imaging are very expensive. A simple approach to imaging trace fluorescently labeled protein crystals in crystallization plates has been devised, and can be implemented at a cost as low as $50. The proteins β-lactoglobulin B, trypsin and purified concanavalin A (ConA) were trace fluorescently labeled using three different fluorescent probes: Cascade Yellow (CY), Carboxyrhodamine 6G (CR) and Pacific Blue (PB)...
December 1, 2017: Acta Crystallographica. Section F, Structural Biology Communications
https://www.readbyqxmd.com/read/29191558/where-is-the-breakthrough-innovation-for-parasite-control
#4
Ronald Kaminsky
The need to improve parasite control to overcome drug-resistant parasite populations, and to improve compliance by more convenient drug application methods, is evident. While a number of incremental stepwise improvements are visible, the big disruptive innovation, an iPhone-equivalent breakthrough, has been hard to find. Why?
November 27, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/29189424/iphone-in-the-management-of-the-berlin-heart-excor-ventricular-assist-device
#5
Aditya Badheka, Veerajalandhar Allareddy
Berlin Heart Inc. EXCOR is an extracorporeal pneumatically pulsatile ventricular assist device approved for use in pediatric age group since 2011 in the United States. It is a well-established life-saving therapy for the bridge to heart transplant or to provide circulatory support in a transplanted patient. The most commonly reported problem was "membrane defect" in a postmarketing major device reporting. In general, the filling and emptying of the pump can be easily visualized, but the interobserver variability exist...
November 14, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29187344/one-drop-mobile-on-iphone-and-apple-watch-an-evaluation-of-hba1c-improvement-associated-with-tracking-self-care
#6
Chandra Y Osborn, Joost R van Ginkel, David G Marrero, David Rodbard, Brian Huddleston, Jeff Dachis
BACKGROUND: The One Drop | Mobile app supports manual and passive (via HealthKit and One Drop's glucose meter) tracking of self-care and glycated hemoglobin A1c (HbA1c). OBJECTIVE: We assessed the HbA1c change of a sample of people with type 1 diabetes (T1D) or type 2 diabetes (T2D) using the One Drop | Mobile app on iPhone and Apple Watch, and tested relationships between self-care tracking with the app and HbA1c change. METHODS: In June 2017, we identified people with diabetes using the One Drop | Mobile app on iPhone and Apple Watch who entered two HbA1c measurements in the app 60 to 365 days apart...
November 29, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29179653/walk-this-way-validity-evidence-of-iphone-health-application-step-count-in-laboratory-and-free-living-conditions
#7
Markus J Duncan, Kelly Wunderlich, Yingying Zhao, Guy Faulkner
Several attempts have been made to demonstrate the accuracy of the iPhone pedometer function in laboratory test conditions. However, no studies have attempted to evaluate evidence of convergent validity of the iPhone step counts as a surveillance tool in the field. This study takes a pragmatic approach to evaluating Health application derived iPhone step counts by measuring accuracy of a standardized criterion iPhone SE and a heterogeneous sample of participant owned iPhones (6 or newer) in a laboratory condition, as well as comparing personal iPhones to accelerometer derived steps in a free-living test...
November 28, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29170970/smartphones-in-clinical-practice-doctors-experience-at-two-dublin-paediatric-teaching-hospitals
#8
Taha S El Hadidy, Abdulrahman E Alshafei, Alan E Mortell, Eva M Doherty
INTRODUCTION: We conducted a study at two main centres for paediatric surgery in the Republic of Ireland, Temple Street Children's University Hospital (TSCUH) and Our Lady's Children's Hospital Crumlin (OLCHC). AIM: The aim of the study was to assess doctors' opinions, frequency and methods of smartphone use in clinical practice. METHODS: Doctors (n = 265) at the two hospitals were invited to complete a 12-item survey. Descriptive statistics were calculated accordingly...
November 23, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29162377/smartphone-based-accelerometry-is-a-valid-tool-for-measuring-dynamic-changes-in-knee-extension-range-of-motion
#9
Morten Pallisgaard Støve, Thorvaldur Skuli Palsson, Rogerio Pessoto Hirata
INTRODUCTION: Measurement of static joint range of motion is used extensively in orthopaedic and rehabilitative communities to benchmark treatment efficacy. Static measures are, however, insufficient in providing detailed information about patient impairments. Dynamic range of motion measures could provide more detailed information about patient impairments thus leading to better clinical assessments. Reliable and valid methods are available, but due to limitations in the present technology, dynamic measures are seldom performed in clinical settings...
November 18, 2017: Knee
https://www.readbyqxmd.com/read/29135066/developing-and-sustaining-a-career-as-a-transdisciplinary-nurse-scientist
#10
Kathleen T Hickey
PURPOSE: The purpose of this article is to provide an overview of strategies to build and sustain a career as a nurse scientist. This article examines how to integrate technologies and precision approaches into clinical practice, research, and education of the next generation of nursing scholars. DESIGN: This article presents information for shaping a sustainable transdisciplinary career. Programs of research that utilize self-management to improve quality of life are discussed throughout the article...
November 14, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/29128113/measurement-equivalence-of-the-bdsx-scale-with-young-and-older-adults-with-bipolar-disorder
#11
Norm O'Rourke, Yaacov G Bachner, Sarah L Canham, Andrew Sixsmith, Badas Study Team
Instruments developed for mental health research are commonly devised and validated with young adults only. However, the measurement properties of these scales may differ over the lifespan. For this study, we set out to demonstrate the psychometric equivalence of the BDSx scale with an international sample of young and older adults with bipolar disorder (BD). We independently replicated the 4-factor model of BDSx responses with young and older participants (M = 45.63, range 19-87 years of age); we then compared the psychometric properties between models...
October 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29117934/uses-of-mobile-device-digital-photography-of-dermatologic-conditions-in-primary-care
#12
Jennifer L Pecina, Kirk D Wyatt, Nneka I Comfere, Matthew E Bernard, Frederick North
BACKGROUND: PhotoExam is a mobile app that incorporates digital photographs into the electronic health record (EHR) using iPhone operating system (iOS, Apple Inc)-based mobile devices. OBJECTIVE: The aim of this study was to describe usage patterns of PhotoExam in primary care and to assess clinician-level factors that influence the use of the PhotoExam app for teledermatology (TD) purposes. METHODS: Retrospective record review of primary care patients who had one or more photos taken with the PhotoExam app between February 16, 2015 to February 29, 2016 were reviewed for 30-day outcomes for rates of dermatology consult request, mode of dermatology consultation (curbside phone consult, eConsult, and in-person consult), specialty and training level of clinician using the app, performance of skin biopsy, and final pathological diagnosis (benign vs malignant)...
November 8, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29108572/a-cost-effective-assay-for-antioxidant-using-simple-cotton-thread-combining-paper-based-device-with-mobile-phone-detection
#13
Suphasinee Sateanchok, Sunanta Wangkarn, Chalermpong Saenjum, Kate Grudpan
A cost-effective assay for antioxidant using simple cotton thread combining paper based device with mobile phone detection has been investigated. Standard and sample solutions flow along a bunch of cotton thread treated with sodium hydroxide via microfluidic behaviors without external pumping. The analyte solution reacts with the reagents that have been immobilized on the paper strip fixed at the end of the cotton bunch. The developed platforms were used for the assays of total phenolic content and antioxidant capacity by employing Folin-Ciocalteu and 2, 2-diphenyl-1-picryhydrazyl (DPPH) respectively...
January 15, 2018: Talanta
https://www.readbyqxmd.com/read/29102856/validity-and-reliability-of-an-iphone-app-to-assess-time-velocity-and-leg-power-during-a-sit-to-stand-functional-performance-test
#14
Juan Diego Ruiz-Cárdenas, Juan José Rodríguez-Juan, Rowan R Smart, Jennifer M Jakobi, Gareth R Jones
The purposes of this study were: (i) Analyze the concurrent validity and reliability of an iPhone App for measuring time, velocity and power during a single sit-to-stand (STS) test compared with measurements recorded from a force plate; and (ii) Evaluate the relationship between the iPhone App measures with age and functional performance. Forty-eight healthy individuals (age range: 26-81 years) were recruited. All participants completed a STS test on a force plate with the movement recorded on an iPhone 6 at 240 frames-per-second...
January 2018: Gait & Posture
https://www.readbyqxmd.com/read/29084262/press-touch-code-a-finger-press-based-screen-size-independent-authentication-scheme-for-smart-devices
#15
M S A Noman Ranak, Saiful Azad, Nur Nadiah Hanim Binti Mohd Nor, Kamal Z Zamli
Due to recent advancements and appealing applications, the purchase rate of smart devices is increasing at a higher rate. Parallely, the security related threats and attacks are also increasing at a greater ratio on these devices. As a result, a considerable number of attacks have been noted in the recent past. To resist these attacks, many password-based authentication schemes are proposed. However, most of these schemes are not screen size independent; whereas, smart devices come in different sizes. Specifically, they are not suitable for miniature smart devices due to the small screen size and/or lack of full sized keyboards...
2017: PloS One
https://www.readbyqxmd.com/read/29079549/iphone-sensors-in-tracking-outcome-variables-of-the-30-second-chair-stand-test-and-stair-climb-test-to-evaluate-disability-cross-sectional-pilot-study
#16
Gautam Adusumilli, Solomon Eben Joseph, Michael A Samaan, Brooke Schultz, Tijana Popovic, Richard B Souza, Sharmila Majumdar
BACKGROUND: Performance tests are important to characterize patient disabilities and functional changes. The Osteoarthritis Research Society International and others recommend the 30-second Chair Stand Test and Stair Climb Test, among others, as core tests that capture two distinct types of disability during activities of daily living. However, these two tests are limited by current protocols of testing in clinics. There is a need for an alternative that allows remote testing of functional capabilities during these tests in the osteoarthritis patient population...
October 27, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29076765/destroying-iphones-feral-science-and-the-antithetical-citizen
#17
Mike Michael
This exploratory article considers the implications of a particular genre - YouTube videos of iPhone destruction - for the Citizen Science and Public Understanding of Science/Public Engagement with Science and Technology. Situating this genre within a broader TV tradition of 'destructive testing' programmes, there is a description of the forms of destruction visited upon the iPhone, and an analysis of the features shared by the videos (e.g. mode of address, enactments of the experiment). Drawing on the notion of the 'idiotic', there is a discussion of the genre that aims to treat its evident lack of scientific and citizenly 'seriousness' productively...
October 1, 2017: Public Understanding of Science
https://www.readbyqxmd.com/read/29076154/dermoscopy-in-vitiligo-diagnosis-and-beyond
#18
Abhijeet Kumar Jha, Sidharth Sonthalia, Aimilios Lallas, R K P Chaudhary
BACKGROUND: Vitiligo is essentially a clinical diagnosis, and dermoscopy may aid in noninvasive confirmation of diagnosis by excluding other clinically simulating hypopigmentary conditions. More importantly, dermoscopy is rapidly gaining ground as an important adjunct tool to evaluate disease activity. AIM: To study the dermoscopic features of vitiligo and ascertain their correlation with disease activity. METHODS: Retrospective analysis of dermoscopy of 60 cases suffering from vitiligo was undertaken...
October 26, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29061558/commercially-available-smartphone-apps-to-support-postoperative-pain-self-management-scoping-review
#19
Chitra Lalloo, Ushma Shah, Kathryn A Birnie, Cleo Davies-Chalmers, Jordan Rivera, Jennifer Stinson, Fiona Campbell
BACKGROUND: Recently, the use of smartphones to deliver health-related content has experienced rapid growth, with more than 165,000 mobile health (mHealth) apps currently available in the digital marketplace. With 3 out of 4 Canadians currently owning a smartphone, mHealth apps offer opportunities to deliver accessible health-related knowledge and support. Many individuals experience pain after surgery, which can negatively impact their health-related quality of life, including sleep, emotional, and social functioning...
October 23, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29060800/tumor-size-and-elasticity-estimation-using-smartphone-based-compression-induced-scope
#20
C-H Won, Jesse Goldstein, Vira Oleksyuk, Dina Caroline, Suzanne Pascarella
A simple-to-use, noninvasive, and risk-free system, which will provide accurate identification of potentially life threatening malignant tumors using tactile pressure, is developed. The Smartphone-based Compression-Induced (SCI) Scope will allow physicians to quickly capture the mechanical properties of a benign or malignant tumor with the convenience of a smartphone platform. The size and elasticity property is described using estimating methods from the pressure-induced images of SCI Scope. The device is based on the Apple iPhone 6...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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