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https://www.readbyqxmd.com/read/29774899/smartphone-based-rapid-quantification-of-viable-bacteria-by-single-cell-microdroplet-turbidity-imaging
#1
Xiaonan Cui, Lihui Ren, Yufei Shan, Xixian Wang, Zhenlong Yang, Chunyu Li, Jian Xu, Bo Ma
Standard plate count (SPC) has been recognized as the golden standard for the quantification of viable bacteria. However, SPC usually takes one to several days to grow individual cells into a visible colony, which greatly hampers its application in rapid bacteria enumeration. Here we present a microdroplet turbidity imaging based digital standard plate count (dSPC) method to overcome this hurdle. Instead of cultivating on agar plates, bacteria are encapsulated in monodisperse microdroplets for single-cell cultivation...
May 18, 2018: Analyst
https://www.readbyqxmd.com/read/29767504/motion-based-immunological-detection-of-zika-virus-using-pt-nanomotors-and-a-cellphone
#2
Mohamed Shehata Draz, Nivethitha Kota Lakshminaraasimulu, Sanchana Krishnakumar, Dheerendranath Battalapalli, Anish Vasan, Manoj Kumar Kanakasabapathy, Aparna Sreeram, Shantanu Kallakuri, Prudhvi Thirumalaraju, Yudong Li, Stephane Hua, Xu G Yu, Daniel R Kuritzkes, Hadi Shafiee
Zika virus (ZIKV) infection is an emerging pandemic threat to humans that can be fatal in newborns. Advances in digital health systems and nanoparticles can facilitate the development of sensitive and portable detection technologies for timely management of emerging viral infections. Here we report a nanomotor-based bead-motion cellphone (NBC) system for the immunological detection of ZIKV. The presence of virus in a testing sample results in the accumulation of platinum (Pt)-nanomotors on the surface of beads, causing their motion in H2 O2 solution...
May 16, 2018: ACS Nano
https://www.readbyqxmd.com/read/29664328/factors-influencing-rural-end-users-acceptance-of-e-health-in-developing-countries-a-study-on-portable-health-clinic-in-bangladesh
#3
Nazmul Hossain, Fumihiko Yokota, Nazneen Sultana, Ashir Ahmed
BACKGROUND: Existing studies regarding e-health are mostly focused on information technology design and implementation, system architecture and infrastructure, and its importance in public health with ancillaries and barriers to mass adoption. However, not enough studies have been conducted to assess the end-users' reaction and acceptance behavior toward e-health, especially from the perspective of rural communities in developing countries. OBJECTIVE: The objective of this study is to explore the factors that influence rural end users' acceptance of e-health in Bangladesh...
April 17, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29652523/attitudes-on-technological-social-and-behavioral-economic-strategies-to-reduce-cellphone-use-while-driving-in-teens
#4
M Kit Delgado, Catherine C McDonald, Flaura K Winston, Scott D Halpern, Alison M Buttenheim, Claudia Setubal, Yanlan Huang, Kathryn A Saulsgiver, Yi-Ching Lee
OBJECTIVE: The majority of U.S. teens admit to handheld cellphone use while driving, an increasingly common cause of crashes. Attitudes towards novel cellphone applications and settings that block use while driving are poorly understood, potentially limiting uptake. We examined teens' willingness to reduce cellphone use while driving and perceptions of potential strategies to limit this behavior. METHODS: Teen drivers (n = 153) aged 16-17 who owned smartphones and admitted to texting while driving completed an online survey...
April 13, 2018: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29629422/can-diet-influence-our-health-by-altering-intestinal-microbiota-derived-fecal-metabolites
#5
Qiang Lyu, Cheng-Chih Hsu
The human gastrointestinal tract harbors a diverse, highly mutualistic microbial flora which could produce a myriad of specialized metabolites. These specialized metabolites are the chemical cellphones that gut microflora use to communicate with their human host and could potentially be used to cure diseases. Chemical compounds in diet also shape the gut flora. In order to understand which and how the gut microbe-derived specialized metabolites affect human health, the "gut microbiome-metabolomic-human health axis" is thus proposed...
March 2018: MSystems
https://www.readbyqxmd.com/read/29619348/balancing-the-need-for-clinical-photography-with-patient-privacy-issues-the-search-for-a-secure-smartphone-application-to-take-and-store-clinical-photographs
#6
Danielle O Dumestre, Frankie O G Fraulin
Background: Physicians are increasingly using smartphones to take clinical photographs. This study evaluates a smartphone application for clinical photography that prioritizes and facilitates patient security. Methods: Ethics approval was obtained to trial a smartphone clinical photography application, PicSafe Medi. Calgary plastic surgeons and residents used the application to obtain informed consent and photograph patients. Surveys gauging the application's usability, consent process, and photograph storage/sharing were then sent to surgeons and patients...
November 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29606226/a-pilot-study-of-a-smartphone-application-supporting-recovery-from-drug-addiction
#7
Di Liang, Hui Han, Jiang Du, Min Zhao, Yih-Ing Hser
BACKGROUND: Mobile health (mHealth) technologies have the potential to facilitate self-monitoring and self-management for individuals with substance use disorders (SUD). S-Health is a bilingual smartphone application based on cognitive behavioral principles and is designed to support recovery from drug addiction by trigger recognition so as to allow practice in-the-moment coping to prevent relapse. METHOD: For this pilot randomized controlled study, 75 participants were recruited from methadone maintenance treatment clinics and the social worker consortium in Shanghai, China...
May 2018: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/29578832/pilot-randomized-trial-of-an-automated-smoking-cessation-intervention-via-mobile-phone-text-messages-as-an-adjunct-to-varenicline-in-primary-care
#8
Jessica M Yingst, Susan Veldheer, Shari Hrabovsky, Erin Hammett, James Nicholson, Arthur Berg, Jonathan Foulds
OBJECTIVE: Varenicline is a safe and effective aid to smoking cessation but most trials have involved frequent visits or intensive behavioral support unlike that typically provided in primary care. The current study examined if motivational text messages, sent via cellphone, would increase quit rates in smokers being treated with varenicline and 3 brief sessions in a family practice setting. METHODS: This study was a randomized controlled, parallel-group smoking cessation trial...
March 26, 2018: Journal of Health Communication
https://www.readbyqxmd.com/read/29574716/acceptability-of-a-text-message-based-fertility-awareness-application-for-family-planning-in-lucknow-india
#9
Klaira Lerma, Griselda Reyes, Siddharth Tiwari, Akhilesh Tewari, Charlotte Hastings, Paul D Blumenthal
OBJECTIVE: To assess user satisfaction and acceptability toward a cellphone-based short message system (SMS) application for fertility awareness. METHODS: Between July 1 and September 30, 2013, the present observational study recruited women of reproductive age were presenting for family-planning services in Lucknow, India, who were not pregnant, who agreed to use the application, and who understood basic English. The application collected information on an individual's menstrual cycle and, using the calendar days approach, predicted fertility...
March 25, 2018: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29530373/sleep-disorder-risk-factors-among-student-athletes
#10
Takafumi Monma, Akira Ando, Tohru Asanuma, Yutaka Yoshitake, Goichiro Yoshida, Taiki Miyazawa, Naoyuki Ebine, Satoko Takeda, Naomi Omi, Makoto Satoh, Kumpei Tokuyama, Fumi Takeda
OBJECTIVE: To clarify sleep disorder risk factors among student athletes, this study examined the relationship between lifestyle habits, competition activities, psychological distress, and sleep disorders. METHODS: Student athletes (N = 906; male: 70.1%; average age: 19.1 ± 0.8 years) in five university sports departments from four Japanese regions were targeted for analysis. Survey items were attributes (age, gender, and body mass index), sleep disorders (recorded through the Pittsburgh Sleep Quality Index), lifestyle habits (bedtime, wake-up time, smoking, drinking alcohol, meals, part-time jobs, and use of electronics after lights out), competition activities (activity contents and competition stressors), and psychological distress (recorded through the K6 scale)...
April 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29495424/simple-approaches-to-minimally-instrumented-microfluidic-based-point-of-care-nucleic-acid-amplification-tests
#11
REVIEW
Michael G Mauk, Jinzhao Song, Changchun Liu, Haim H Bau
Designs and applications of microfluidics-based devices for molecular diagnostics (Nucleic Acid Amplification Tests, NAATs) in infectious disease testing are reviewed, with emphasis on minimally instrumented, point-of-care (POC) tests for resource-limited settings. Microfluidic cartridges ('chips') that combine solid-phase nucleic acid extraction; isothermal enzymatic nucleic acid amplification; pre-stored, paraffin-encapsulated lyophilized reagents; and real-time or endpoint optical detection are described...
February 26, 2018: Biosensors
https://www.readbyqxmd.com/read/29494620/using-machine-learning-to-optimize-phase-contrast-in-a-low-cost-cellphone-microscope
#12
Benedict Diederich, Rolf Wartmann, Harald Schadwinkel, Rainer Heintzmann
Cellphones equipped with high-quality cameras and powerful CPUs as well as GPUs are widespread. This opens new prospects to use such existing computational and imaging resources to perform medical diagnosis in developing countries at a very low cost. Many relevant samples, like biological cells or waterborn parasites, are almost fully transparent. As they do not exhibit absorption, but alter the light's phase only, they are almost invisible in brightfield microscopy. Expensive equipment and procedures for microscopic contrasting or sample staining often are not available...
2018: PloS One
https://www.readbyqxmd.com/read/29478720/cellphone-legislation-and-self-reported-behaviors-among-subgroups-of-adolescent-u-s-drivers
#13
Toni M Rudisill, Gordon Smith, Haitao Chu, Motao Zhu
PURPOSE: The relationship between cellphone use while driving legislation and self-reported adolescent driver behavior is poorly understood, especially across demographic subgroups. This study investigated the relationship between statewide cellphone legislation and cellphone use behaviors across adolescent driver subgroups, including age (16/17 vs. 18), sex, race/ethnicity (white non-Hispanic and others), and rurality (urban or rural). METHODS: Data from the 2011-2014 Traffic Safety Culture Index Surveys were combined with state legislation...
May 2018: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29445814/anisotropic-flexible-transparent-films-from-remaining-wood-microstructures-for-screen-protection-and-agnw-conductive-substrate
#14
Qiheng Tang, Lu Fang, YunFei Wang, Miao Zou, Wenjing Guo
Flexible transparent conductive films or substrates prepared from plastics or cellulose are widely used in optoelectronic devices. However, all of these films or substrates are fabricated by complex and expensive methods, which consume much energy and time. In this work, we report for the first time a remarkably facile and effective approach for fabricating flexible transparent films directly from wood. The resulting films exhibit an array of exceptional optical and mechanical properties. The well-aligned cell structures in natural wood are maintained during delignification, leading to anisotropic films with high transparency (≈90% transmittance)...
March 1, 2018: Nanoscale
https://www.readbyqxmd.com/read/29433020/radio-frequency-radiation-related-cancer-assessing-causation-in-the-occupational-military-setting
#15
Michael Peleg, Or Nativ, Elihu D Richter
BACKGROUND AND AIM: We reexamine whether radio frequency radiation (RFR) in the occupational and military settings is a human carcinogen. METHODS: We extended an analysis of an already-reported case series of patients with cancer previously exposed to whole-body prolonged RFR, mainly from communication equipment and radar. We focused on hematolymphatic (HL) cancers. We used analysis by percentage frequency (PF) of a cancer type, which is the proportion of a specific cancer type relative to the total number of cancer cases...
May 2018: Environmental Research
https://www.readbyqxmd.com/read/29411629/clinical-texting-among-medical-trainees-of-the-university-of-british-columbia
#16
Danny Guo, Nam Phan, Kendall Ho, John Pawlovich, Neil Kitson
We believe cellphone text messages are commonly used in medical practice whether in rural or urban settings and that clinical photos are often attached to them. Our interest is the use of this technology to provide dermatology service to rural and remote British Columbia. Concern has been expressed about the security of confidential information and adequacy of privacy protection in such an application. We have found little published information about the extent of texting in rural and remote settings (and none in our jurisdiction) or the number and nature of privacy breaches that have actually occurred as a result...
February 1, 2018: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29350517/cellphone-enabled-microwell-based-microbead-aggregation-assay-for-portable-biomarker-detection
#17
Weiwei Cui, Meihang He, Luye Mu, Zuzeng Lin, Yanyan Wang, Wei Pang, Mark Reed, Xuexin Duan
Quantitative biomarker detection methods featured with rapidity, high accuracy, and label-free are demonstrated for the development of point-of-care (POC) technologies or "beside" diagnostics. Microbead aggregation via protein-specific linkage provides an effective approach for selective capture of biomarkers from the samples, and can directly readout the presence and amount of the targets. However, sensors or microfluidic analyzers that can accurately quantify the microbead aggregation are scared...
February 23, 2018: ACS Sensors
https://www.readbyqxmd.com/read/29301354/atmospheric-sensors-and-energy-harvesters-on-overhead-power-lines
#18
Richard M White, Duy-Son Nguyen, Zhiwei Wu, Paul K Wright
We demonstrate the feasibility of using novel, small energy harvesters to power atmospheric sensors and radios simply attached to a single conductor of existing overhead power distribution lines. We demonstrate the ability to harvest the required power for operating multiple atmospheric and power-system sensors, together with short-range radios that could broadcast atmospheric sensor data to the cellphones of people nearby. Occasional long-range broadcasts of the data could also be made of both atmospheric and power-line conditions...
January 3, 2018: Sensors
https://www.readbyqxmd.com/read/29279620/can-active-signals-of-cellphone-interfere-with-electronic-working-length-determination-of-a-root-canal-in-a-dental-clinic-an-in-vivo-study
#19
Umadevi Kiritsinh Gohil, Vaishali V Parekh, Niraj Kinariwala, Kaushal M Oza, Mona C Somani
Objective: To evaluate the interference of active cellphones during electronic working length (EWL) determination of a root canal. Materials and Methods: Thirty patients requiring root canal treatment in the anterior teeth or premolars having single canal and mature apices were selected for this study. Working length determination was done using no. 15 K-file. Electronic apex locators ProPex Pixi and Root ZX mini were used for working length determination. Cellphones iPhone 6s and Xolo Q3000 were evaluated for their interference...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29219093/feasibility-of-implementing-a-cellphone-based-reminder-recall-strategy-to-improve-childhood-routine-immunization-in-a-low-resource-setting-a-descriptive-report
#20
Victoria Bolanle Brown, O Abimbola Oluwatosin
BACKGROUND: Reminder/recall systems are effective ways to improve immunization rates, but their feasibility in primary health care (PHC) settings in Nigeria has not been adequately evaluated. In this study we describe the acceptability and adaptability of immunization reminder/recall system in an urban setting in southwest Nigeria. METHODS: This is a descriptive report of a cluster randomized controlled trial. Four local government areas (LGAs) were randomly assigned into a cellphone reminder/recall intervention group or a usual care control group...
December 4, 2017: BMC Health Services Research
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