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Closed system transfer device

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https://www.readbyqxmd.com/read/28332444/a-functional-electrical-stimulation-system-for-human-walking-inspired-by-reflexive-control-principles
#1
Lin Meng, Bernd Porr, Catherine A Macleod, Henrik Gollee
This study presents an innovative multichannel functional electrical stimulation gait-assist system which employs a well-established purely reflexive control algorithm, previously tested in a series of bipedal walking robots. In these robots, ground contact information was used to activate motors in the legs, generating a gait cycle similar to that of humans. Rather than developing a sophisticated closed-loop functional electrical stimulation control strategy for stepping, we have instead utilised our simple reflexive model where muscle activation is induced through transfer functions which translate sensory signals, predominantly ground contact information, into motor actions...
April 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28315750/fun-cube-based-brain-gym-cognitive-function-assessment-system
#2
Tao Zhang, Chung-Chih Lin, Tsang-Chu Yu, Jing Sun, Wen-Chuin Hsu, Alice May-Kuen Wong
The aim of this study is to design and develop a fun cube (FC) based brain gym (BG) cognitive function assessment system using the wireless sensor network and multimedia technologies. The system comprised (1) interaction devices, FCs and a workstation used as interactive tools for collecting and transferring data to the server, (2) a BG information management system responsible for managing the cognitive games and storing test results, and (3) a feedback system used for conducting the analysis of cognitive functions to assist caregivers in screening high risk groups with mild cognitive impairment...
March 3, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28315550/hazardous-drugs-and-usp-800-implications-for-nurses
#3
Seth Eisenberg
BACKGROUND: Although guidelines for the safe handling of hazardous drugs (HDs) have existed for several decades, they have not been enforceable by state or federal agencies. USP <800>, the latest chapter issued by the U.S. Pharmacopeial Convention, expands on existing guidelines and provides detailed information on compounding and administration. Unlike current guidelines, USP <800> will be enforced by each state's board of pharmacy or their delegated agency.
. OBJECTIVES: This article provides a brief overview of the dangers associated with HDs and the implications of USP <800> for nurses...
April 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28268953/on-the-capacity-of-diffusion-based-molecular-communications-with-sinw-fet-based-receiver
#4
Murat Kuscu, Ozgur B Akan
Molecular communication (MC) is a bio-inspired communication method based on the exchange of molecules for information transfer among nanoscale devices. Although MC has been extensively studied from various aspects, limitations imposed by the physical design of transceiving units have been largely neglected in the literature. Recently, we have proposed a nanobioelectronic MC receiver architecture based on the nanoscale field effect transistor-based biosensor (bioFET) technology, providing noninvasive and sensitive molecular detection at nanoscale while producing electrical signals at the output...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264504/error-based-observer-of-a-charge-couple-device-tracking-loop-for-fast-steering-mirror
#5
Tao Tang, Chao Deng, Tao Yang, Daijun Zhong, Ge Ren, Yongmei Huang, Chengyu Fu
The charge couple device (CCD) tracking loop of a fast steering mirror (FSM) is usually used to stabilize line of sight (LOS). High closed-loop bandwidth facilitates good performance. However, low-rate sample and time delay of the CCD greatly limit the high control bandwidth. This paper proposes an error-based observer (EBO) to improve the low-frequency performance of the CCD tracking system. The basic idea is by combining LOS error from the CCD and the controller output to produce the high-gain observer, forwarding into the originally closed-loop control system...
February 28, 2017: Sensors
https://www.readbyqxmd.com/read/28227160/on-the-capacity-of-diffusion-based-molecular-communications-with-sinw-fet-based-receiver
#6
Murat Kuscu, Ozgur B Akan, Murat Kuscu, Ozgur B Akan, Ozgur B Akan, Murat Kuscu
Molecular communication (MC) is a bio-inspired communication method based on the exchange of molecules for information transfer among nanoscale devices. Although MC has been extensively studied from various aspects, limitations imposed by the physical design of transceiving units have been largely neglected in the literature. Recently, we have proposed a nanobioelectronic MC receiver architecture based on the nanoscale field effect transistor-based biosensor (bioFET) technology, providing noninvasive and sensitive molecular detection at nanoscale while producing electrical signals at the output...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28060296/studying-soft-matter-and-biological-systems-over-a-wide-length-scale-from-nanometer-and-micrometer-sizes-at-the-small-angle-neutron-diffractometer-kws-2
#7
Aurel Radulescu, Noemi Kinga Szekely, Marie-Sousai Appavou, Vitaliy Pipich, Thomas Kohnke, Vladimir Ossovyi, Simon Staringer, Gerald J Schneider, Matthias Amann, Bo Zhang-Haagen, Georg Brandl, Matthias Drochner, Ralf Engels, Romuald Hanslik, Günter Kemmerling
The KWS-2 SANS diffractometer is dedicated to the investigation of soft matter and biophysical systems covering a wide length scale, from nm to µm. The instrument is optimized for the exploration of the wide momentum transfer Q range between 1x10(-4) and 0.5 Å(-1) by combining classical pinhole, focusing (with lenses), and time-of-flight (with chopper) methods, while simultaneously providing high-neutron intensities with an adjustable resolution. Because of its ability to adjust the intensity and the resolution within wide limits during the experiment, combined with the possibility to equip specific sample environments and ancillary devices, the KWS-2 shows a high versatility in addressing the broad range of structural and morphological studies in the field...
December 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28033282/evaluation-of-counseling-environmental-alteration-on-pharmacy-patient-communication-qualifications-a-case-control-study
#8
Hongyan Gu, Lulu Sun, Rui Jin, Fang Li, Yuanyuan Wei, Zhengzheng Xie
The closed pharmaceutical counseling room was so hard to be established for most of hospitals in China since limited space in the out-patient lobby, which dramatically affected the qualification of medication consultant. Few reports studied the importance of closed pharmaceutical counseling room construction.To investigate the necessary of closed pharmaceutical counseling room construction in the outpatient lobby.The closed pharmaceutical counseling room was established and equipped with hospital electronic information system, patient education flashes, and we-Chat in web...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27984708/a-primary-standard-source-of-radon-222-based-on-the-hpge-detector
#9
M Y A Mostafa, M Vasyanovich, M Zhukovsky
The present paper describes the prototype of a calibration standard system for radon concentrations to be used in establishing the traceability of radon concentration measurements in dwellings. Radon gas was generated with a radium-226 solid source in a certified volume as a closed system. The activity of the radon that was released in the closed system was determined from the difference between the absolute activity of the standard radium solid source and the residual radon decay products ((214)Bi or (214)Pb)...
February 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27972996/closed-system-transfer-device-for-preparation-of-antineoplastic-drugs-in-a-malaysian-public-hospital-is-it-truly-cost-saving
#10
H Chan, C J Lim, M A Hassali, F Saleem
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27894231/evidence-of-exposure-to-cytostatic-drugs-in-healthcare-staff-a-review-of-recent-literature
#11
Pablo Martín Lancharro, Nuria De Castro-Acuña Iglesias, Francisco-Javier González-Barcala, José Domingo Moure González
OBJECTIVE: Provide updated evidence and learn about the actions that must be implemented in order to prevent the occupational exposure to cytostatic drugs. METHOD: A bibliographic search was carried out on the MEDLINE, COCHRANE PLUS and WEB OF SCIENCE databases, with the terms "surface contamination", "cytostatic drug", "drug preparation", "occupational exposure", "safe handling" and "closed-system transfer device", within the 2010-2015 period. RESULTS: Thirteen articles were selected for review...
November 1, 2016: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/27894224/comparative-study-of-preparation-of-hazardous-drugs-with-different-closed-system-drug-transfer-devices-by-means-of-simulation-with-fluorescein
#12
Eva González-Haba Peña, Silvia Manrique Rodríguez, Ana Mª Herranz Alonso, Patricia Pérez Castán, Mónica Moreno Gálvez, Irene Iglesias Peinado, María Sanjurjo Saez
OBJECTIVES: The level of environmental contamination generated during preparation and administration of hazardous drugs using different valve closed-systems and their combinations was compared. The actual impact on the overall time of preparation of cytostatics and the economic cost of the different modalities were also compared. METHODS: Comparative study of the preparation of fluorescein mixtures with different modalities of valve closed-system combinations. Environmental contamination was detected in critical points of connection, and in splashes produced at any other points...
November 1, 2016: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/27704078/closed-bipolar-electrode-enabled-dual-cell-electrochromic-detectors-for-chemical-sensing
#13
Wei Xu, Kaiyu Fu, Chaoxiong Ma, Paul W Bohn
Bipolar electrodes (BPE) are electrically floating metallic elements placed in electrified fluids that enable the coupling of anodic and cathodic redox reactions at the opposite ends by electron transfer through the electrode. One particularly compelling application allows electron transfer reactions at one end of a closed BPE to be read out optically by inducing a redox-initiated change in the optical response function of a reporter system at the other end. Here, a BPE-enabled method for electrochemical sensing based on the electrochromic response of a methyl viologen (MV) reporter is developed, characterized, and rendered in a field-deployable format...
October 17, 2016: Analyst
https://www.readbyqxmd.com/read/27696684/a-literature-review-of-reports-of-the-stability-and-storage-of-common-injectable-chemotherapy-agents-used-in-veterinary-patients
#14
C M Chan, A E Frimberger, A S Moore
Many chemotherapy drugs used in human patients are discarded after single use or within 24 h of reconstitution, as per the manufacturer's product label recommendations. This can be wasteful and costly to veterinary clients. This report reviews the published stability and storage data for 19 injectable chemotherapy drugs commonly used in veterinary medicine. Based on these data, storage procedures are presented, assuming aseptic technique and a closed system drug transfer device (CSDTD) are used for drug preparation and handling...
October 2, 2016: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/27648829/internal-resonance-in-a-vibrating-beam-a-zoo-of-nonlinear-resonance-peaks
#15
Franco Mangussi, Damián H Zanette
In oscillating mechanical systems, nonlinearity is responsible for the departure from proportionality between the forces that sustain their motion and the resulting vibration amplitude. Such effect may have both beneficial and harmful effects in a broad class of technological applications, ranging from microelectromechanical devices to edifice structures. The dependence of the oscillation frequency on the amplitude, in particular, jeopardizes the use of nonlinear oscillators in the design of time-keeping electronic components...
2016: PloS One
https://www.readbyqxmd.com/read/27621456/tuning-electronic-transport-via-hepta-alanine-peptides-junction-by-tryptophan-doping
#16
Cunlan Guo, Xi Yu, Sivan Refaely-Abramson, Lior Sepunaru, Tatyana Bendikov, Israel Pecht, Leeor Kronik, Ayelet Vilan, Mordechai Sheves, David Cahen
Charge migration for electron transfer via the polypeptide matrix of proteins is a key process in biological energy conversion and signaling systems. It is sensitive to the sequence of amino acids composing the protein and, therefore, offers a tool for chemical control of charge transport across biomaterial-based devices. We designed a series of linear oligoalanine peptides with a single tryptophan substitution that acts as a "dopant," introducing an energy level closer to the electrodes' Fermi level than that of the alanine homopeptide...
September 27, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27609982/development-of-a-new-clinically-applicable-device-for-embryo-evaluation-which-measures-embryo-oxygen-consumption
#17
Hiroki Kurosawa, Hiroki Utsunomiya, Naomi Shiga, Aiko Takahashi, Motomasa Ihara, Masumi Ishibashi, Mitsuo Nishimoto, Zen Watanabe, Hiroyuki Abe, Jin Kumagai, Yukihiro Terada, Hideki Igarashi, Toshifumi Takahashi, Atsushi Fukui, Ryota Suganuma, Masahito Tachibana, Nobuo Yaegashi
STUDY QUESTION: Does a new system-the chip-sensing embryo respiration monitoring system (CERMs)-enable evaluation of embryo viability for potential application in a clinical IVF setting? SUMMARY ANSWER: The system enabled the oxygen consumption rate of spheroids, bovine embryos and frozen-thawed human embryos to be measured, and this rate corresponded to the developmental potential of embryos. WHAT IS ALREADY KNOWN: To date, no reliable and clinically suitable objective evaluation methods for embryos are available, which circumvent the differences in inter-observer subjective view...
October 2016: Human Reproduction
https://www.readbyqxmd.com/read/27448710/the-expression-of-cg9940-affects-the-adaptation-of-cardiac-function-mobility-and-lifespan-to-exercise-in-aging-drosophila
#18
Deng-Tai Wen, Lan Zheng, Liu Ni, Hui Wang, Yue Feng, Min Zhang
The CG9940 gene, which encodes the NAD(+) synthase protein in Drosophila, is conserved in human, zebra fish, and mosquito. NAD(+) synthase is a homodimer, which catalyzes the final step in de novo nicotinamide adenine dinucleotide (NAD(+)) biosynthesis, an amide transfer from either ammonia or glutamine to nicotinic acid adenine dinucleotide (NaAD). Both the CG9940 and exercise are closely relative to NAD(+) level, and NAD(+) plays important roles not only in energy metabolism and mitochondrial functions but also in aging...
October 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27418669/integration-of-microfluidics-and-mammalian-ivf
#19
M B Wheeler, M Rubessa
The in vitro production (IVP) of mammalian embryos is central to several areas of biotechnology. Further, the use of in vitro embryo manipulation is expanding as new applications emerge. ART finds direct applications in increasing the genetic quality of livestock, producing transgenic animals, cloning, artificial insemination, reducing disease transmission, preserving endangered germplasm, producing chimeric animals for disease research and treating infertility. Whereas new techniques such as nuclear transfer and ICSI are now commonly used, basic embryo culture procedures remain the limiting step to the development of these techniques...
July 14, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27394108/electric-field-driven-electron-transfer-in-mixed-valence-molecules
#20
Enrique P Blair, Steven A Corcelli, Craig S Lent
Molecular quantum-dot cellular automata is a computing paradigm in which digital information is encoded by the charge configuration of a mixed-valence molecule. General-purpose computing can be achieved by arranging these compounds on a substrate and exploiting intermolecular Coulombic coupling. The operation of such a device relies on nonequilibrium electron transfer (ET), whereby the time-varying electric field of one molecule induces an ET event in a neighboring molecule. The magnitude of the electric fields can be quite large because of close spatial proximity, and the induced ET rate is a measure of the nonequilibrium response of the molecule...
July 7, 2016: Journal of Chemical Physics
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