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https://www.readbyqxmd.com/read/28213882/a-standard-mutual-authentication-protocol-for-cloud-computing-based-health-care-system
#1
Prerna Mohit, Ruhul Amin, Arijit Karati, G P Biswas, Muhammad Khurram Khan
Telecare Medical Information System (TMIS) supports a standard platform to the patient for getting necessary medical treatment from the doctor(s) via Internet communication. Security protection is important for medical records (data) of the patients because of very sensitive information. Besides, patient anonymity is another most important property, which must be protected. Most recently, Chiou et al. suggested an authentication protocol for TMIS by utilizing the concept of cloud environment. They claimed that their protocol is patient anonymous and well security protected...
April 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28211891/experimental-observation-of-spatially-resolved-photo-luminescence-intensity-distribution-in-dual-mode-upconverting-nanorod-bundles
#2
Pawan Kumar, Satbir Singh, V N Singh, Nidhi Singh, R K Gupta, Bipin Kumar Gupta
A novel method for demonstration of photoluminescence intensity distribution in upconverting nanorod bundles using confocal microscopy is reported. Herein, a strategy for the synthesis of highly luminescent dual mode upconverting/downshift Y1.94O3:Ho(3+)0.02/Yb(3+)0.04 nanorod bundles by a facile hydrothermal route has been introduced. These luminescent nanorod bundles exhibit strong green emission at 549 nm upon excitations at 449 nm and 980 nm with quantum efficiencies of ~6.3% and ~1.1%, respectively...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210535/magnetic-resonance-imaging-in-a-neurofibromatosis-type-2-patient-with-a-novel-mri-compatible-auditory-brainstem-implant
#3
REVIEW
Matthew Shew, Judson Bertsch, Paul Camarata, Hinrich Staecker
Auditory brainstem implantation has become a key technique for the rehabilitation of hearing in patients with neurofibromatosis type 2. The nature of this devastating genetic disease requires ongoing MRI for the patient's lifespan. Today, most auditory brainstem implants require removal of the magnet that connects the internal device to the external speech processor to undergo imaging as their disease progresses. Patients have the option of having a short procedure to have the magnet taken out and replaced each time, or alternately using a headband to secure the processor over the receiver coil of the internal device...
January 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28205005/a-selective-group-authentication-scheme-for-iot-based-medical-information-system
#4
YoHan Park, YoungHo Park
The technology of IoT combined with medical systems is expected to support advanced medical services. However, unsolved security problems, such as misuse of medical devices, illegal access to the medical server and so on, make IoT-based medical systems not be applied widely. In addition, users have a high burden of computation to access Things for the explosive growth of IoT devices. Because medical information is critical and important, but users have a restricted computing power, IoT-based medical systems are required to provide secure and efficient authentication for users...
April 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28195717/luminescence-color-tuning-by-regulating-electrostatic-interaction-in-light-emitting-devices-and-two-photon-excited-information-decryption
#5
Yun Ma, Shujuan Liu, Huiran Yang, Yi Zeng, Pengfei She, Nianyong Zhu, Cheuk-Lam Ho, Qiang Zhao, Wei Huang, Wai-Yeung Wong
It is well-known that the variation of noncovalent interactions of luminophores, such as π-π interaction, metal-to-metal interaction, and hydrogen-bonding interaction, can regulate their emission colors. Electrostatic interaction is also an important noncovalent interaction. However, very few examples of luminescence color tuning induced by electrostatic interaction were reported. Herein, a series of Zn(II)-bis(terpyridine) complexes (Zn-AcO, Zn-BF4, Zn-ClO4, and Zn-PF6) containing different anionic counterions were reported, which exhibit counterion-dependent emission colors from green-yellow to orange-red (549 to 622 nm) in CH2Cl2 solution...
February 14, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28194529/a-randomized-clinical-study-on-postoperative-pain-comparing-between-the-supraglottic-airway-device-and-endotracheal-tubing-in-transabdominal-preperitoneal-repair-tapp
#6
Y Nagahisa, K Hashida, R Matsumoto, R Kawashima, M Okabe, K Kawamoto
BACKGROUND: Transabdominal preperitoneal (TAPP) repair is the most widely used laparoscopic technique for the treatment of inguinal hernia in Japan. Many studies have shown that in comparison with open hernia repair, laparoscopic repair results in less pain and a shorter convalescence. However, postoperative pain remains a concern. One possible cause of postoperative pain in the early postoperative phase is strain or cough on removal of the endotracheal tube. Use of a supraglottic airway (SGA) device helps to avoid such complaints...
February 13, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28194479/-airway-management-in-intensive-care-units-in-rhineland-palatinate-evolution-over-five-years
#7
T Piepho, T Härer, L Ellermann, R R Noppens
BACKGROUND: Securing the airway in severely ill patients is associated with a high rate of complications. So far, no information exists about the equipment readily available for airway management in German intensive care units (ICUs). It is also unknown if the range of material has improved over time. OBJECTIVES: In the present trial the availability of equipment for airway management in ICUs in Rhineland-Palatinate was evaluated at two different times. MATERIALS AND METHODS: Using a structured questionnaire, all ICUs in the state were contacted in the years 2010 and 2015...
February 13, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28194345/transaxillary-subpectoral-placement-of-cardiac-implantable-electronic-devices-in-young-female-patients
#8
Joo Hyun Oh, Chae Min Kim, Seung Yong Song, Jae Sun Uhm, Dae Hyun Lew, Dong Won Lee
BACKGROUND: The current indications of cardiac implantable electronic devices (CIEDs) have expanded to include young patients with serious cardiac risk factors, but CIED placement has the disadvantage of involving unsightly scarring and bulging of the chest wall. A collaborative team of cardiologists and plastic surgeons developed a technique for the subpectoral placement of CIEDs in young female patients via a transaxillary approach. METHODS: From July 2012 to December 2015, subpectoral CIED placement via an axillary incision was performed in 10 young female patients, with a mean age of 25...
January 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28188058/usefulness-of-newly-method-of-central-venous-catheter-securement-using-continuous-suture
#9
Janghyuck Moon, Sung Uk Cho, Jin Woong Lee, Seung Ryu, Yong Chul Cho, Won Joon Jeong, Hong Joon Ahn, Ki Hyuk Joo
INTRODUCTION: To reduce the time required for suture closure for central venous catheterization, a new procedure was developed using a continuous suture technique. The present study was conducted to investigate the usefulness of this method. METHOD: The study was conducted with 90 volunteers among the doctors in the university hospital. Preliminary training (using video) on the two fixation methods was given to the participants prior to the experiment. After applying the central vein of the pig skin, a suture up to the butterfly seal was prepared, and the participant was allowed to fix the suture using the classic method and the new method...
January 28, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28181699/endoscopic-closure-after-intraluminal-surgery
#10
REVIEW
Teppei Akimoto, Osamu Goto, Toshihiro Nishizawa, Naohisa Yahagi
Endoscopic submucosal dissection is established as a curative endoscopic method for gastrointestinal epithelial neoplasms with a high possibility of complete en bloc resection; however, postoperative adverse events of bleeding and delayed perforation remain. To prevent or minimize them, several techniques for endoscopic mucosal closure have been introduced, such as using endoscopic clips, combined use of hemoclips and supplement devices, and specially designed endoscopic suturing devices. Furthermore, endoscopic full-thickness suturing technique for gastrointestinal wall defect has been developed based on the concept in natural orifice transluminal endoscopic surgery and endoscopic full-thickness resection...
February 9, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28181489/chip-based-quantum-key-distribution
#11
P Sibson, C Erven, M Godfrey, S Miki, T Yamashita, M Fujiwara, M Sasaki, H Terai, M G Tanner, C M Natarajan, R H Hadfield, J L O'Brien, M G Thompson
Improvement in secure transmission of information is an urgent need for governments, corporations and individuals. Quantum key distribution (QKD) promises security based on the laws of physics and has rapidly grown from proof-of-concept to robust demonstrations and deployment of commercial systems. Despite these advances, QKD has not been widely adopted, and large-scale deployment will likely require chip-based devices for improved performance, miniaturization and enhanced functionality. Here we report low error rate, GHz clocked QKD operation of an indium phosphide transmitter chip and a silicon oxynitride receiver chip-monolithically integrated devices using components and manufacturing processes from the telecommunications industry...
February 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28178858/technology-based-tools-and-services-for-people-with-dementia-and-carers-mapping-technology-onto-the-dementia-care-pathway
#12
Klara Lorenz, Paul P Freddolino, Adelina Comas-Herrera, Martin Knapp, Jacqueline Damant
The extent to which technology may be able to support people with dementia and their carers along the care pathway and in different care settings is of interest to policy makers and governments. In this paper we provide an overview of the role of technology in dementia care, treatment and support by mapping existing technologies - by function, target user and disease progression. Technologies identified are classified into seven functions: memory support, treatment, safety and security, training, care delivery, social interaction and other...
January 1, 2017: Dementia
https://www.readbyqxmd.com/read/28178135/durability-of-cervical-disc-arthroplasties-and-its-influence-factors-a-systematic-review-and-a-network-meta-analysis
#13
Chao Chen, Xiaolin Zhang, Xinlong Ma
BACKGROUND: The durability of cervical disc arthroplasties (CDA) may vary significantly because of different designs and implanting techniques of the devices. Nevertheless, the comparative durability remains unknown. OBJECTIVES: We aimed to assess the durability of CDAs in at least 2-year follow-up. We analyzed the classifications and causes of secondary surgical procedures, as well as the structural designs of the devices that might influence the durability. METHODS: PubMed, Medline, Embase, and Cochrane Central Register of Controlled Trials were searched from the inception of each database to September 2015 using the following Keywords: "cervical disc replacement" OR "cervical disc arthroplasty" AND "randomized controlled trial (RCT)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28158020/droop-free-al-sub-x-sub-ga-sub-1-x-sub-n-al-sub-y-sub-ga-sub-1-y-sub-n-quantum-disks-in-nanowires-ultraviolet-led-emitting-at-337-nm-on-metal-silicon-substrates
#14
Bilal Janjua, Haiding Sun, Chao Zhao, Dalaver H Anjum, Davide Priante, Abdullah A Alhamoud, Feng Wu, Xiaohang Li, Abdulrahman M Albadri, Ahmed Y Alyamani, Munir M El-Desouki, Tien Khee Ng, Boon S Ooi
Currently the AlGaN-based ultraviolet (UV) solid-state lighting research suffers from numerous challenges. In particular, low internal quantum efficiency, low extraction efficiency, inefficient doping, large polarization fields, and high dislocation density epitaxy constitute bottlenecks in realizing high power devices. Despite the clear advantage of quantum-confinement nanostructure, it has not been widely utilized in AlGaN-based nanowires. Here we utilize the self-assembled nanowires (NWs) with embedding quantum-disks (Qdisks) to mitigate these issues, and achieve UV emission of 337 nm at 32 A/cm<sup>2</sup> (80 mA in 0...
January 23, 2017: Optics Express
https://www.readbyqxmd.com/read/28157939/remote-detection-of-rotating-machinery-with-a-portable-atomic-magnetometer
#15
Luca Marmugi, Lorenzo Gori, Sarah Hussain, Cameron Deans, Ferruccio Renzoni
We demonstrate remote detection of rotating machinery, using an atomic magnetometer at room temperature and in an unshielded environment. The system relies on the coupling of the AC magnetic signature of the target with the spin-polarized, precessing atomic vapor of a radio-frequency optical atomic magnetometer. The AC magnetic signatures of rotating equipment or electric motors appear as sidebands in the power spectrum of the atomic sensor, which can be tuned to avoid noisy bands that would otherwise hamper detection...
January 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28155094/ethical-implications-of-user-perceptions-of-wearable-devices
#16
REVIEW
L H Segura Anaya, Abeer Alsadoon, N Costadopoulos, P W C Prasad
Health Wearable Devices enhance the quality of life, promote positive lifestyle changes and save time and money in medical appointments. However, Wearable Devices store large amounts of personal information that is accessed by third parties without user consent. This creates ethical issues regarding privacy, security and informed consent. This paper aims to demonstrate users' ethical perceptions of the use of Wearable Devices in the health sector. The impact of ethics is determined by an online survey which was conducted from patients and users with random female and male division...
February 2, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28153385/video-review-as-a-tool-to-improve-orthopedic-residents-performance-of-closed-manipulative-reductions
#17
Nickul S Jain, Ran Schwarzkopf, John A Scolaro
OBJECTIVE: Orthopedic residents commonly perform closed manipulative reductions as a part of their training. Traditionally, this skill is taught early in training but difficult to simulate. Proficiency is achieved through repetition and experience; faculty observation and instruction is unfortunately often limited. Direct resident teaching has been shown to increase competency, comfort, and long-term skill retention. We hypothesize that video review of closed fracture reductions will provide an inexpensive and valuable tool for resident education and improve skill performance...
January 30, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28149368/the-influence-of-the-gait-related-arm-swing-on-elevation-gain-measured-by-sport-watches
#18
Rahel Ammann, Wolfgang Taube, Matthias Neuhaus, Thomas Wyss
The elevation gain is an important contributor to the total workload in endurance sports. The purpose of this study was to evaluate the influence of the arm swing on elevation gain in three sport watches (Garmin® Forerunner 910XT, Polar® RS800CX and Suunto® Ambit2) on a flat 400 m outdoor track. Altogether, a total of 120 repetitions of 1,200 m were performed at self-selected speeds corresponding to strolling, walking, jogging and running. During the assessment two devices of each sport watch, one secured on the hip and one on the wrist, were worn by the participants...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28145894/single-n-sup-sup-i-n-sup-sup-inp-nanowires-for-highly-sensitive-terahertz-detection
#19
Kun Peng, Patrick Parkinson, Qian Gao, Jessica Boland, Ziyuan Li, Fan Wang, Sudha Mokkapati, Lan Fu, Michael Johnston, Hark Tan, Chennupati Jagadish
Developing single-nanowire terahertz (THz) electronics and employing them as sub-wavelength components for highly-integrated THz time-domain spectroscopy (THz-TDS) applications are a promising approach to achieve future low-cost, highly integrable and high-resolution THz tools, which are desirable in many areas spanning from security, industry, environmental monitoring and medical diagnostics to fundamental science. In this work, we present the design and growth of n<sup>+</sup>-i-n<sup>+</sup> InP nanowires...
February 1, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28142245/cervical-arthroplasty-what-does-the-labeling-say
#20
Mazda K Turel, Mena G Kerolus, Owoicho Adogwa, Vincent C Traynelis
OBJECTIVE The aim of this paper was to comprehensively review each of the Food and Drug Administration (FDA)-approved labels of 7 total cervical disc replacements, assess the exact methodology in which the trial was conducted, and provide a broad comparison of these devices to allow each surgeon to determine which disc best suits his or her specific treatment goals based on the specific labels and not the studies published. METHODS The FDA-approved labels for each of the 7 artificial discs were obtained from the official FDA website...
February 2017: Neurosurgical Focus
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