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https://www.readbyqxmd.com/read/27911464/two-successful-insertions-of-peripherally-inserted-central-catheter-in-a-super-elderly-patient-with-bilateral-pacemaker-placement
#1
Wenyan Sun, Yufen Ma, Bing Liu, Ruibing Ge, Kai Wang, Qi Song
Peripherally inserted central catheters (PICCs) have been placed through the peripheral veins, and the best location for the tip of the PICCs is the lower third of the superior vena cava (SVC) and cavo-atrial junction. PICCs are commonly used in intravenous administration, parenteral nutrition therapy, chemotherapy, as well as in critical care units. The success rates in venipuncture are enhanced when ultrasonographic guides are used by the bedside PICC teams. There have been few reports of PICCs placed in super elderly patients with permanent cardiac pacemakers...
December 2, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27911378/iridium-oxide-reduced-graphene-oxide-nanohybrid-thin-film-modified-screen-printed-electrodes-as-disposable-electrochemical-paper-microfluidic-ph-sensors
#2
Jiang Yang, Tae-Joon Kwak, Xiaodong Zhang, Robert McClain, Woo-Jin Chang, Sundaram Gunasekaran
A facile, controllable, inexpensive and green electrochemical synthesis of IrO2-graphene nanohybrid thin films is developed to fabricate an easy-to-use integrated paper microfluidic electrochemical pH sensor for resource-limited settings. Taking advantages from both pH meters and strips, the pH sensing platform is composed of hydrophobic barrier-patterned paper micropad (µPAD) using polydimethylsiloxane (PDMS), screen-printed electrode (SPE) modified with IrO2-graphene films and molded acrylonitrile butadiene styrene (ABS) plastic holder...
November 22, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910985/uvb-radiation-vitamin-d-and-multiple-sclerosis
#3
H F DeLuca, L Plum
Acheson et al. (1960) observed an inverse relationship between sunlight exposure and the incidence of Multiple Sclerosis (MS). This led to the suggestion that increased levels of vitamin D caused by sunlight in some way suppresses MS. Further, super physiological doses of the metabolically active metabolite of vitamin D, i.e. 1α,25 dihydroxy vitamin D suppresses the animal model of MS i.e. experimental autoimmune encephalomyelitis (EAE). However, this response was accompanied by hypercalcemia. Hypercalcemia itself can suppress EAE...
December 2, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27910832/vacancy-pairing-and-superstructure-in-the-high-pressure-silicate-k1-5mg2si2o7h0-5-a-new-potential-host-for-potassium-in-the-deep-earth
#4
M D Welch, L Bindi, V Petříček, J Plášil
The high-pressure silicate K1.5Mg2Si2O7H0.5, synthesized and characterized by Welch et al. [(2012), Am. Mineral. 97, 1849-1857], has been re-examined with the aim of determining the nature of the superstructure noted in their study. The composition corresponds to a 1:1 combination of KMg2Si2O7H and K2Mg2Si2O7 end-members, but it is not a solid solution. Single-crystal X-ray diffraction data for one of the original K1.5Mg2Si2O7H0.5 crystals synthesized at 16 GPa/1573 K, has been collected using a much longer exposure time in order to improve the intensity statistics of weak superlattice reflections identified by Welch et al...
December 1, 2016: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials
https://www.readbyqxmd.com/read/27910540/the-thomson-scattering-system-at-wendelstein-7-x
#5
E Pasch, M N A Beurskens, S A Bozhenkov, G Fuchert, J Knauer, R C Wolf
This paper describes the design of the Thomson scattering system at the Wendelstein 7-X stellarator. For the first operation campaign we installed a 10 spatial channel system to cover a radial half profile of the plasma cross section. The start-up system is based on one Nd:YAG laser with 10 Hz repetition frequency, one observation optics, five fiber bundles with one delay line each, and five interference filter polychromators with five spectral channels and silicon avalanche diodes as detectors. High dynamic range analog to digital converters with 14 bit, 1 GS/s are used to digitize the signals...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910527/an-fpga-based-bolometer-for-the-mast-u-super-x-divertor
#6
Jack Lovell, Graham Naylor, Anthony Field, Peter Drewelow, Ray Sharples
A new resistive bolometer system has been developed for MAST-Upgrade. It will measure radiated power in the new Super-X divertor, with millisecond time resolution, along 16 vertical and 16 horizontal lines of sight. The system uses a Xilinx Zynq-7000 series Field-Programmable Gate Array (FPGA) in the D-TACQ ACQ2106 carrier to perform real time data acquisition and signal processing. The FPGA enables AC-synchronous detection using high performance digital filtering to achieve a high signal-to-noise ratio and will be able to output processed data in real time with millisecond latency...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910495/cross-calibration-of-fuji-tr-image-plate-and-rar-2492-x-ray-film-to-determine-the-response-of-a-ditabis-super-micron-image-plate-scanner
#7
G Dunham, E C Harding, G P Loisel, P W Lake, L B Nielsen-Weber
Fuji TR image plate is frequently used as a replacement detector medium for x-ray imaging and spectroscopy diagnostics at NIF, Omega, and Z facilities. However, the familiar Fuji BAS line of image plate scanners is no longer supported by the industry, and so a replacement scanning system is needed. While the General Electric Typhoon line of scanners could replace the Fuji systems, the shift away from photo stimulated luminescence units to 16-bit grayscale Tag Image File Format (TIFF) leaves a discontinuity when comparing data collected from both systems...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910331/next-generation-gamma-ray-cherenkov-detectors-for-the-national-ignition-facility
#8
H W Herrmann, Y H Kim, A M McEvoy, A B Zylstra, C S Young, F E Lopez, J R Griego, V E Fatherley, J A Oertel, W Stoeffl, H Khater, J E Hernandez, A Carpenter, M S Rubery, C J Horsfield, S Gales, A Leatherland, T Hilsabeck, J D Kilkenny, R M Malone, J D Hares, J Milnes, W T Shmayda, C Stoeckl, S H Batha
The newest generation of Gas Cherenkov Detector (GCD-3) employed in Inertial Confinement Fusion experiments at the Omega Laser Facility has provided improved performance over previous generations. Comparison of reaction histories measured using two different deuterium-tritium fusion products, namely gamma rays using GCD and neutrons using Neutron Temporal Diagnostic (NTD), have provided added credibility to both techniques. GCD-3 is now being brought to the National Ignition Facility (NIF) to supplement the existing Gamma Reaction History (GRH-6m) located 6 m from target chamber center (TCC)...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909248/regulation-of-chemokine-receptor-ccr2-recycling-by-filamin-a-phosphorylation
#9
Mònica Pons, Ismael Izquierdo, Mireia Andreu-Carbó, Georgina Garrido, Jesús Planagumà, Olivia Muriel, M Isabel Geli, Anna M Aragay
Proper endosomal trafficking of ligand-activated G protein-coupled receptors (GPCRs) is essential to spatiotemporally tune their physiological responses. For the monocyte chemoattractant receptor 2 (CCR2B), endocytic recycling is important to sustain monocyte migration; while filamin A (FLNa) is essential for CCL2-induced monocyte migration. Here, we analyze the role of FLNa in the trafficking of CCR2B along the endocytic pathway. In FLNa knockdown cells, activated CCR2B accumulated in enlarged EEA-1-positive endosomes, which exhibited slow movement and fast fluorescence recovery, suggesting an imbalance between receptor entry and exit rates...
December 1, 2016: Journal of Cell Science
https://www.readbyqxmd.com/read/27906699/reversal-effects-of-local-anesthetics-on-p-glycoprotein-mediated-cancer-multidrug-resistance
#10
Yong Hu, Xiaobing Qin, Haixia Cao, Shaorong Yu, Jifeng Feng
The existence of multidrug resistance (MDR) is the main reason for failure in cancer chemotherapy. The main mechanism of MDR is the overexpression of P-glycoprotein (P-gp). P-gp, a 170 kDa transmembrane phosphorylated glycoprotein encoded by ABCB1 belonging to a member of the ATP-binding cassette (ABC) super-family of the membrane transporters, is also known as the MDR protein. Local anesthetics (LAs) are a major contributor to medical practice. As a cornerstone of analgesia, LAs provides myriad benefits...
November 30, 2016: Anti-cancer Drugs
https://www.readbyqxmd.com/read/27906482/three-dimensional-super-branched-pdcu-nanoarchitectures-exposed-on-controlled-crystal-facets
#11
Muhammad Iqbal, Cuiling Li, Jung Ho Kim, Saad M Alshehri, Tsuruo Nakayama, Yusuke Yamauchi
Despite the great success of controlled synthesis of metal nanocrystals with various sizes and morphologies, an efficient one-pot approach to preparing well-organized three-dimensional (3D) structures with unique facets exposed remains a great challenge. Herein, we report a unique 3D nanoarchitecture for PdCu alloy, created by a simple chemical reduction method, in which nanosized octahedral PdCu nanocrystals are directly assembled into 3D super-branched structures. Detailed investigations of its electrocatalytic performance demonstrate that the as-prepared facet-controlled PdCu super-branched nanostructures possess higher activity towards the formic acid oxidation reaction in comparison to the commercially available Pd black catalyst...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906373/efficient-homogeneous-illumination-and-optical-sectioning-for-quantitative-single-molecule-localization-microscopy
#12
Joran Deschamps, Andreas Rowald, Jonas Ries
Single-molecule localization microscopy (SMLM) relies on the switching of fluorescent molecules between a fluorescent and a dark state to achieve super resolution. This process is inherently dependent on the intensity distribution of the laser light used for both activation from the dark state and excitation of the bright state. Typically, laser light is coupled directly or via a single-mode fiber into the microscope, which leads to a Gaussian intensity profile in total internal reflection (TIR) or epi illumination...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906367/cultivation-of-lemon-fields
#13
Sushanta Kumar Pal, P Senthilkumaran
The sign rule requires that adjacent singularities on a contour have opposite signs and hence cultivation of lemon only fields poses problem as all lemons have positive index. In this paper we show that the interference of three linearly polarized plane waves can create regions of ellipse and vector fields in 2-dimensions (2D) in which a lemon lattice is interlaced in a V-point lattice. The lemons appear at intensity maxima of the lattice structure while the V-points take care of index conservation by sitting at intensity minima...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906223/axial-super-resolution-evanescent-wave-tomography
#14
Sarang Pendharker, Swapnali Shende, Ward Newman, Stephen Ogg, Neda Nazemifard, Zubin Jacob
Optical tomographic reconstruction of a three-dimensional (3D) nanoscale specimen is hindered by the axial diffraction limit, which is 2-3 times worse than the focal plane resolution. We propose and experimentally demonstrate an axial super-resolution evanescent wave tomography method that enables the use of regular evanescent wave microscopes like the total internal reflection fluorescence microscope beyond surface imaging and achieve a tomographic reconstruction with axial super-resolution. Our proposed method based on Fourier reconstruction achieves axial super-resolution by extracting information from multiple sets of 3D fluorescence images when the sample is illuminated by an evanescent wave...
December 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/27906049/smad-dependent-mechanisms-of-inflammatory-bone-destruction
#15
REVIEW
Michelle Fennen, Thomas Pap, Berno Dankbar
Homeostatic bone remodelling becomes disturbed in a variety of pathologic conditions that affect the skeleton, including inflammatory diseases. Rheumatoid arthritis is the prototype of an inflammatory arthritis characterised by chronic inflammation, progressive cartilage destruction and focal bone erosions and is a prime example for a disease with disturbed bone homeostasis. The inflammatory milieu favours the recruitment and activation of osteoclasts, which have been found to be the cells that are primarily responsible for bone erosions in many animal models of inflammatory arthritis...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27905498/super-resolution-imaging-using-the-spatial-frequency-filtered-intensity-fluctuation-correlation
#16
Jane Sprigg, Tao Peng, Yanhua Shih
We report an experimental demonstration of a nonclassical imaging mechanism with super-resolving power beyond the Rayleigh limit. When the classical image is completely blurred out due to the use of a small imaging lens, by taking advantage of the intensity fluctuation correlation of thermal light, the demonstrated camera recovered the image of the resolution testing gauge. This method could be adapted to long distance imaging, such as satellite imaging, which requires large diameter camera lenses to achieve high image resolution...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904065/hospitalization-deteriorates-performance-of-activities-of-daily-living-by-super-elderly-patients-with-heart-failure
#17
Hideo Izawa, Yuji Kohno, Wakaya Fujiwara, Mutsuharu Hayashi
No abstract text is available yet for this article.
December 1, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27904019/clinical-characteristics-and-social-frailty-of-super-elderly-patients-with-heart-failure%C3%A3-the-kitakawachi-clinical-background-and-outcome-of-heart-failure-registry
#18
Kensuke Takabayashi, Akihiro Ikuta, Yoshinori Okazaki, Mariko Ogami, Kotaro Iwatsu, Koichi Matsumura, Tsutomu Ikeda, Tahei Ichinohe, Yuko Morikami, Takashi Yamamoto, Ryoko Fujita, Kotoe Takenaka, Hiroyuki Takenaka, Yoshisumi Haruna, Hiroyuki Muranaka, Masaaki Ozaki, Tetsuhisa Kitamura, Shouji Kitaguchi, Ryuji Nohara
BACKGROUND: Social background is important in preventing admission/readmission of heart failure (HF) patients. However, few clinical studies have been conducted to assess the social background of these patients, especially elderly patients.Methods and Results:The Kitakawachi Clinical Background and Outcome of Heart Failure (KICKOFF) Registry is a prospective multicenter community-based cohort of HF patients, established in April 2015. We compared the clinical characteristics and social background of the super-elderly group (≥85 years old) and the non-super-elderly group (<85 years old)...
November 30, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27902940/a-novel-lab-on-chip-platform-with-integrated-solid-phase-pcr-and-supercritical-angle-fluorescence-saf-microlens-array-for-highly-sensitive-and-multiplexed-pathogen-detection
#19
Tran Quang Hung, Wai Hoe Chin, Yi Sun, Anders Wolff, Dang Duong Bang
Solid-phase PCR (SP-PCR) has become increasingly popular for molecular diagnosis and there have been a few attempts to incorporate SP-PCR into lab-on-a-chip (LOC) devices. However, their applicability for on-line diagnosis is hindered by the lack of sensitive and portable on-chip optical detection technology. In this paper, we addressed this challenge by combining the SP-PCR with super critical angle fluorescence (SAF) microlens array embedded in a microchip. We fabricated miniaturized SAF microlens array as part of a microfluidic chamber in thermoplastic material and performed multiplexed SP-PCR directly on top of the SAF microlens array...
November 12, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27900364/analysis-of-intrapatient-heterogeneity-uncovers-the-microevolution-of-middle-east-respiratory-syndrome-coronavirus
#20
Donghyun Park, Hee Jae Huh, Yeon Jeong Kim, Dae-Soon Son, Hyo-Jeong Jeon, Eu-Hyun Im, Jong-Won Kim, Nam Yong Lee, Eun-Suk Kang, Cheol In Kang, Doo Ryeon Chung, Jin-Hyun Ahn, Kyong Ran Peck, Sun Shim Choi, Yae-Jean Kim, Chang-Seok Ki, Woong-Yang Park
Genome sequence analysis of Middle East respiratory syndrome coronavirus (MERS-CoV) variants from patient specimens has revealed the evolutionary dynamics and mechanisms of pathogenesis of the virus. However, most studies have analyzed the consensus sequences of MERS-CoVs, precluding an investigation of intrapatient heterogeneity. Here, we analyzed non-consensus sequences to characterize intrapatient heterogeneity in cases associated with the 2015 outbreak of MERS in South Korea. Deep-sequencing analysis of MERS-CoV genomes performed on specimens from eight patients revealed significant intrapatient variation; therefore, sequence heterogeneity was further analyzed using targeted deep sequencing...
November 2016: Cold Spring Harbor Molecular Case Studies
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