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https://www.readbyqxmd.com/read/28646605/observations-and-impacts-of-bleach-washing-on-indoor-chlorine-chemistry
#1
J P S Wong, N Carslaw, R Zhao, S Zhou, J P D Abbatt
Ambient levels of chlorinated gases and aerosol components were measured by on-line chemical ionization and aerosol mass spectrometers after an indoor floor was repeatedly washed with a commercial bleach solution. Gaseous chlorine (Cl2 , 10's of ppbv) and hypochlorous acid (HOCl, 100's of ppbv) arise after floor washing, along with nitryl chloride (ClNO2 ), dichlorine monoxide (Cl2 O) and chloramines (NHCl2 , NCl3 ). Much higher mixing ratios would prevail in a room with lower and more commonly encountered air exchange rates than that observed in the study (12...
June 24, 2017: Indoor Air
https://www.readbyqxmd.com/read/28646333/feeding-jejunostomy-associated-small-bowel-necrosis-after-elective-esophago-gastric-resection
#2
Omer S Al-Taan, Robert N Williams, James A Stephenson, Melanie Baker, S Murthy Nyasavajjala, David J Bowrey
BACKGROUND: Feeding jejunostomy has increasingly become a standard adjunctive procedure during major esophago-gastric resections. They provide nutritional support during the post-operative period as required. However, significant early complications have been reported, most notably small bowel necrosis. Literature reports have been restricted to case reports or series. This study aims to determine the frequency of this complication in a cohort of patients undergoing esophago-gastric resection, and identify any difference in the risk of this complication between patients undergoing esophagectomy and gastrectomy...
June 23, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28646176/enhanced-atomic-desorption-of-209-and-210-francium-from-organic-coating
#3
Steinn Agustsson, Giovanni Bianchi, Roberto Calabrese, Lorenzo Corradi, Antonio Dainelli, Alen Khanbekyan, Carmela Marinelli, Emilio Mariotti, Luca Marmugi, Leonardo Ricci, Leonardo Stiaccini, Luca Tomassetti, Andrea Vanella
Controlled atomic desorption from organic Poly-DiMethylSiloxane coating is demonstrated for improving the loading efficiency of (209,210)Fr magneto-optical traps. A three times increase in the cold atoms population is obtained with contact-less pulsed light-induced desorption, applied to different isotopes, either bosonic or fermionic, of Francium. A six times increase of (210)Fr population is obtained with a desorption mechanism based on direct charge transfer from a triboelectric probe to the adatom-organic coating complex...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646006/high-frequency-jet-ventilation-in-preterm-infants-is-there-still-room-for-it
#4
EDITORIAL
Mário Ferreira Carpi
No abstract text is available yet for this article.
July 2017: Respiratory Care
https://www.readbyqxmd.com/read/28645904/intra-articular-lipoma-of-the-hip
#5
Anthony J Mells, G Max Gosey, Michael P Muldoon
Intra-articular lipoma of the hip is a rare entity, with only two reports published in the English-language literature. We present a case of successful arthroscopic resection of an intra-articular peripheral compartment lipoma in a 69-year-old woman with a coincident labral tear. This woman presented with left hip pain that developed gradually over 2 years and increased over 2 months. MRI showed a fat-intense mass in the anterior aspect of the hip joint, convincing for intra-articular lipoma. Physical examination in the operating room reproduced decreased range of motion and evidence of impingement but with a soft endpoint...
June 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28645734/the-influence-of-temperature-treatment-before-cryopreservation-on-the-viability-and-potency-of-cryopreserved-and-thawed-cd34-and-cd45-cord-blood-cells
#6
Svenja Schwandt, Stefanie Liedtke, Gesine Kogler
BACKGROUND: Hematopoietic stem cell (HSC) viability and potency is crucial for qualified cord blood (CB) transplants. This study analyzes time and temperature condition before cryopreservation for the viability of CD34(+)/CD45(+) cells after cryopreservation. METHODS: Cell viabilities were determined by antibody co-staining with 7-aminoactinomycin D detecting necrotic cells, and subsequent flow cytometric analysis. Additionally, Annexin V staining for determination of apoptotic cells and colony-forming unit (CFU) assays for testing functional potency of HSCs were performed...
June 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28645662/development-of-a-3d-printable-maxillofacial-silicone-part-ii-optimization-of-moderator-and-thixotropic-agent
#7
Swati K Jindal, Martyn Sherriff, Mark G Waters, James E Smay, Trevor J Coward
STATEMENT OF PROBLEM: Conventionally, maxillofacial prostheses are fabricated by hand carving the missing anatomic defect in wax and creating a mold into which pigmented silicone elastomer is placed. Digital technologies such as computer numerical control milling and 3-dimensional (3D) printing have been used to prepare molds, directly or indirectly, into which a biocompatible pigmented silicone elastomer can be placed. PURPOSE: The purpose of this in vitro study was to develop a silicone elastomer that could be 3D printed directly without a mold to create facial or body prostheses by varying its composition...
June 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28645599/biplanar-fluoroscopy-guided-percutaneous-lead-implantation-for-spinal-cord-stimulation-a-technical-note
#8
Aaron Lawson McLean, Susanne Frank, Daniel Staribacher, Rolf Kalff, Rupert Reichart
INTRODUCTION: The correct positioning of spinal cord stimulator leads is assessed radiographically during their percutaneous implantation for trial stimulation. Usually the C-arm is repositioned several times to allow imaging in different planes, which may extend the total duration of surgery. The study aimed to evaluate whether the concurrent intraoperative use of two C-arms could safely reduce the duration of surgery. MATERIALS: This retrospective study included cases of percutaneous implantation of an SCS lead for trial neurostimulation between 2006 and 2011...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28645434/is-there-room-for-theophylline-in-copd
#9
Núria Toledo-Pons, Borja G Cosío
No abstract text is available yet for this article.
June 20, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28645285/completeness-and-timeliness-of-notifiable-disease-reporting-a-comparison-of-laboratory-and-provider-reports-submitted-to-a-large-county-health-department
#10
Brian E Dixon, Zuoyi Zhang, Patrick T S Lai, Uzay Kirbiyik, Jennifer Williams, Rebecca Hills, Debra Revere, P Joseph Gibson, Shaun J Grannis
BACKGROUND: Most public health agencies expect reporting of diseases to be initiated by hospital, laboratory or clinic staff even though so-called passive approaches are known to be burdensome for reporters and produce incomplete as well as delayed reports, which can hinder assessment of disease and delay recognition of outbreaks. In this study, we analyze patterns of reporting as well as data completeness and timeliness for traditional, passive reporting of notifiable disease by two distinct sources of information: hospital and clinic staff versus clinical laboratory staff...
June 23, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28645218/wide-awake-anesthesia-in-the-in-office-procedure-room-lessons-learned
#11
Robert E Van Demark, Hillary A Becker, Matthew C Anderson, Vanessa J S Smith
BACKGROUND: Wide-awake local anesthesia and no tourniquet (WALANT) has become more popular in hand surgery. Without a tourniquet, there is no need for preoperative testing or sedation. The use of lidocaine with epinephrine has allowed a larger variety of cases to be done safely in an outpatient setting instead of the hospital. "Minor field sterility," which uses fewer drapes and tools to accomplish the same procedures, is a concept that is also gaining recognition. METHODS: Investigation of hand surgeons performing a majority of cases using WALANT and minor field sterility was the beginning of seeing its potential at our institution...
June 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28645148/a-soft-environmental-control-effect-of-apatite-doped-with-mineral-traces-in-the-fowl-droppings
#12
M Minamisawa, T Taniai, S Yoshida
Fowl-dropping apatite (Ca10-z[PO4]6-z[OH]2-z) synthesized from carbonized, incinerated fowl droppings contains PO4 and OH groups that are partially substituted by CO32- ions. It shows stronger ion conductivity than commercially available hydroxyapatite in a wide range of temperatures from 23°C to 800°C. Fowl-dropping apatite readily adsorbs NO2 and SO2 gases and, without re-releasing these gases, slowly decomposes them at room temperature under sunlight via ultraviolet-visible (UV-Vis) irradiation. A limited amount of minerals and organics contained in fowl droppings causes light-induced activities in fowl-dropping apatite with a crystal structure that has a developed c face; this initiates excitation-induced atomic transfer on the solid surface derived from PO4 exposed on the c face, which then advances the decomposition reaction...
June 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28644939/an-economic-analysis-of-mac-versus-walant-a-trigger-finger-release-surgery-case-study
#13
Jason L Codding, Suneel B Bhat, Asif M Ilyas
BACKGROUND: There has been recent interest in wide awake hand surgery, also referred to as "wide awake local anesthesia with no tourniquet" (WALANT) surgery. Using a model of single trigger finger release (TFR) surgery, a hypothesis was made that WALANT would result in decreased hospital time and cost than patients receiving sedation with monitored anesthetic care (MAC). METHODS: Consecutive cases of single TFR surgery with MAC were compared with WALANT. All surgeries were performed in the same manner, at the same facility, and by the same surgeon...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28644668/strong-light-matter-interactions-in-single-open-plasmonic-nanocavities-at-the-quantum-optics-limit
#14
Renming Liu, Zhang-Kai Zhou, Yi-Cong Yu, Tengwei Zhang, Hao Wang, Guanghui Liu, Yuming Wei, Huanjun Chen, Xue-Hua Wang
Reaching the quantum optics limit of strong light-matter interactions between a single exciton and a plasmon mode is highly desirable, because it opens up possibilities to explore room-temperature quantum devices operating at the single-photon level. However, two challenges severely hinder the realization of this limit: the integration of single-exciton emitters with plasmonic nanostructures and making the coupling strength at the single-exciton level overcome the large damping of the plasmon mode. Here, we demonstrate that these two hindrances can be overcome by attaching individual J aggregates to single cuboid Au@Ag nanorods...
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28644611/transient-fiber-mats-of-electrospun-poly-propylene-carbonate-composites-with-remarkable-mechanical-strength
#15
Peter Ohlendorf, Alexander Ruyack, Amanda K Leonardi, Chengjian Shi, Christine Cuppoletti, Ian Bruce, Amit Lal, Christopher K Ober
Polymers with a triggered decomposition are attractive for an array of applications ranging from patterning to transient packaging materials as well as for environmental protection. This work showed for the first time UV and thermally triggered transience in fiber mats using poly(propylene carbonate) (PPC) composites. The electrospun PPC-composite fiber mats combine excellent decomposition performance (due to the high surface to volume ratio) with high stiffness and thus represent a new class of materials enabling innovative applications such as transient filter materials, short-time plant protection materials as well as temporary lightweight materials for aerospace engineering...
June 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28644482/one-thousand-fold-enhancement-of-high-field-liquid-nuclear-magnetic-resonance-signals-at-room-temperature
#16
Guoquan Liu, Marcel Levien, Niels Karschin, Giacomo Parigi, Claudio Luchinat, Marina Bennati
Nuclear magnetic resonance (NMR) is a fundamental spectroscopic technique for the study of biological systems and materials, molecular imaging and the analysis of small molecules. It detects interactions at very low energies and is thus non-invasive and applicable to a variety of targets, including animals and humans. However, one of its most severe limitations is its low sensitivity, which stems from the small interaction energies involved. Here, we report that dynamic nuclear polarization in liquid solution and at room temperature can enhance the NMR signal of (13)C nuclei by up to three orders of magnitude at magnetic fields of ∼3 T...
July 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28644463/hypersensitive-dual-function-luminescence-switching-of-a-silver-chalcogenolate-cluster-based-metal-organic-framework
#17
Ren-Wu Huang, Yong-Sheng Wei, Xi-Yan Dong, Xiao-Hui Wu, Chen-Xia Du, Shuang-Quan Zang, Thomas C W Mak
Silver(i) chalcogenide/chalcogenolate clusters are promising photofunctional materials for sensing, optoelectronics and solar energy harvesting applications. However, their instability and poor room-temperature luminescent quantum yields have hampered more extensive study. Here, we graft such clusters to adaptable bridging ligands, enabling their interconnection and the formation of rigid metal-organic frameworks. By controlling the spatial separation and orientation of the clusters, they then exhibit enhanced stability (over one year) and quantum yield (12...
July 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28644243/role-of-breathing-conditions-during-exercise-testing-on-training-prescription-in-chronic-obstructive-pulmonary-disease
#18
Daniel Neunhäuserer, Eva Steidle-Kloc, Marco Bergamin, Gertraud Weiss, Andrea Ermolao, Bernd Lamprecht, Michael Studnicka, Josef Niebauer
This study investigated whether different breathing conditions during exercise testing will influence measures of exercise capacity commonly used for training prescription in chronic obstructive pulmonary disease. Twenty-seven patients with chronic obstructive pulmonary disease (forced expiratory volume in 1 sec = 45.6 [9.4]%) performed three maximal exercise tests within 8 days, but at least 48 hrs apart. Subjects were thereby breathing either room air through a tightly fitting face mask like during any cardiopulmonary exercise test (MASK), room air without mask (No-MASK), or 10 l/min of oxygen via nasal cannula (No-MASK + O2)...
June 21, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28644182/incidence-and-management-of-recurrence-in-patients-with-crohn-s-disease-who-have-undergone-intestinal-resection-the-practicrohn-study
#19
Eugeni Domènech, Valle Garcia, Marisa Iborra, Ana Gutiérrez, Santiago García-López, María D Martín Arranz, Esther Garcia-Planella, Marta Calvo, Luisa Castro, Miguel Mínguez, Carlos Taxonera, Berta Juliá, Luis Cea-Calvo, Cristina Romero, Manuel Barreiro-de Acosta
BACKGROUND: More than 50% of patients with Crohn's disease require intestinal resection at least once. Postoperative recurrence (POR) is almost uniform if prophylactic treatment is not started early. Endoscopic monitoring is generally advised. We studied the incidence and management of recurrence in patients who had undergone intestinal resection. METHODS: Practicrohn was an observational retrospective study performed in 26 Spanish hospitals including patients aged ≥18 years who underwent Crohn's disease-related ileocolonic resection between January 2007 and December 2010...
June 20, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28644149/thermal-transport-in-monolayer-inse
#20
Arun Nissimagoudar, Jinlong Ma, Yani Chen, Wu Li
Two-dimensional InSe, a recently synthesized semiconductor having a moderate band gap, has gained attention due to its ultra high mobility and high photo-responsivity. In this work, we calculate the lattice thermal conductivity (κ) of monolayer InSe by solving the phonon Boltzmann transport equation (BTE) with first-principles calculated inter atomic force constants. κ of monolayer InSe is isotropic and found to be around 27.6 W/m-K at room temperature along the in-plane direction. The size dependence of κ shows the size effect can persist up-to 20 μm...
June 23, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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