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https://www.readbyqxmd.com/read/28106935/effects-of-luting-composites-on-the-resultant-colors-of-ceramic-veneers-to-intended-shade-tab
#1
Qing Li
PURPOSE: To investigate the color differences of ceramic veneers and the intended shade tab, and evaluate the effects of luting composites on the resultant colors of ceramic veneers. MATERIALS AND METHODS: Pressable leucite-reinforced feldspathic ceramic discs (IPS e.max), with nominal shade A3, were fabricated with thicknesses of 1.0 mm, 0.7 mm, and 0.5 mm (n = 10/ thickness). The ceramic specimens were cemented onto a composite background (shade Dentin) using a veneer adhesive system with five colors of luting composites (RelyX)...
January 20, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28097334/the-role-of-cardiovascular-implantable-electronic-devices-in-the-detection-and-treatment-of-subclinical-atrial-fibrillation-a-review
#2
Paul L Hess, Jeff S Healey, Christopher B Granger, Stuart J Connolly, Paul D Ziegler, John H Alexander, Peter R Kowey, Christian T Ruff, Greg Flaker, Jonathan L Halperin, Robert G Hart, Renato D Lopes
Importance: Subclinical atrial fibrillation (AF) is associated with an increased risk for stroke. Observations: Subclinical AF is asymptomatic, short in duration, and usually detected with long-term, continuous monitoring. Most prior studies have explored its consequences using cardiovascular implantable electronic devices (CIEDs). Although current prevalence estimates are derived from study populations with prior CIEDs, 3 trials will assess the time to a first AF diagnosis among patients receiving a CIED for purposes of AF detection...
January 11, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28088689/syntheses-structures-and-fluorescence-properties-of-three-rare-earth-containing-docosatungstates
#3
Hailou Li, Yajie Liu, Rui Zheng, Xing Ma, Lijuan Chen, Junwei Zhao
Three rare-earth containing docosatungstates Na3H2[RE(H2O)4][RE(H2O)5]2[W22O74H2]·36H2O [RE=Dy(III) (1), Ho(III) (2), Y(III) (3)] have been synthesized by reaction of Na2WO4·2H2O, dimethylamine hydrochloride (DMAHC) and RE(NO3)3·6H2O in the aqueous solution and characterized by elemental analyses, IR spectra, thermogravimetric (TG) analysis, powder X-ray diffraction (PXRD) and single-crystal X-ray diffraction. 1-3 are isomorphous and each molecular unit consists of a S-shaped docosatungstate [W22O74H2](14-) polyoxoanion with two supporting [RE(H2O)5](3+) cations and one disordered [RE(H2O)4](3+) cation...
January 9, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28078885/an-ambipolar-bodipy-derivative-for-a-white-exciplex-oled-and-cholesteric-liquid-crystal-laser-towards-multi-functional-devices
#4
Marian Chapran, Enrico Angioni, Neil John Findlay, Benjamin Breig, Vladyslav Cherpak, Pavlo Stakhira, Tell Tuttle, Dmytro Volyniuk, Juozas Vidas Grazulevicius, Yuriy A Nastishin, Oleg D Lavrentovich, Peter John Skabara
A new interface engineering method is demonstrated for the preparation of an efficient white organic light emitting diode (WOLED) by embedding an ultra-thin layer of the novel ambipolar red emissive compound 4,4-di-fluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene (bThBODIPY) in the exciplex formation region. The compound shows a hole and electron mobility of 3.3 × 10-4 cm2 V-1 s-1 and 2 × 10-4 cm2 V-1 s-1, respectively at electric fields higher than 5.3 × 105 V cm-1...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28075624/use-of-preprocedural-mdct-for-cardiac-implantable-electric-device-lead-extraction-frequency-of-findings-that-change-management
#5
Wendy L Ehieli, Daniel T Boll, Daniele Marin, Robert Lewis, Jonathan P Piccini, Lynne M Hurwitz
OBJECTIVE: Five percent of cardiac implantable electric devices (CIEDs) are removed each year. Percutaneous extraction is preferred but can be complicated if the leads adhere to the vasculature or perforate. The goal of this study is to assess the frequency of findings on dedicated MDCT that alter preprocedural planning for percutaneous CIED extraction. MATERIALS AND METHODS: One hundred patients with CIEDs who underwent MDCT before percutaneous lead extraction were analyzed...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28073883/infective-endocarditis-and-risk-of-death-after-cardiac-implantable-electronic-device-implantation-a-nationwide-cohort-study
#6
Cengiz Özcan, Jakob Raunsø, Morten Lamberts, Lars Køber, Tommi Bo Lindhardt, Niels Eske Bruun, Marie Louise Laursen, Christian Torp-Pedersen, Gunnar Hilmar Gislason, Morten Lock Hansen
AIMS: To determine the incidence, risk factors, and mortality of infective endocarditis (IE) following implantation of a first-time, permanent, cardiac implantable electronic device (CIED). METHODS AND RESULTS: From Danish nationwide administrative registers (beginning in 1996), we identified all de-novo permanent pacemakers (PMs) and implantable cardioverter defibrillators (ICDs) together with the occurrence of post-implantation IE-events in the period from 2000-2012...
January 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28071029/assessment-of-colour-changes-during-storage-of-elderberry-juice-concentrate-solutions-using-the-optimization-method
#7
Dorota Walkowiak-Tomczak, Janusz Czapski, Karolina Młynarczyk
BACKGROUND: Elderberries are a source of dietary supplements and bioactive compounds, such as anthocyanins. These dyes are used in food technology. The aim of the study was to assess the changes in colour parameters, anthocyanin contents and sensory attributes in solutions of elderberry juice concentrates during storage in a model system and to determine predictability of sensory attributes of colour in solutions based on regression equations using the response surface methodology. METHODS: The experiment was carried out according to the 3-level factorial design for three factors...
July 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28071003/new-model-for-colour-kinetics-of-plum-under-infrared-vacuum-condition-and-microwave-drying
#8
Reza Amiri Chayjan, Behnam Alaei
BACKGROUND: Quality of dried foods is affected by the drying method and physiochemical changes in tissue. The drying method affects properties such as colour. The colour of processed food is one of the most important quality indices and plays a determinant role in consumer acceptability of food materials and the processing method. The colour of food materials can be used as an indirect factor to determine changes in quality, since it is simpler and faster than chemical methods. METHODS: The study focused on the kinetics of colour changes of plum slices, under infrared vacuum and microwave conditions...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28070976/efficient-deep-blue-electroluminescence-based-on-phenanthroimidazole-dibenzothiophene-derivatives-with-different-oxidation-states-of-sulfur-atom
#9
Xiangyang Tang, Tong Shan, Qing Bai, Hongwei Ma, Xin He, Ping Lu
Developing efficient deep blue materials is a long term research focus in the field of organic light emitting diodes (OLEDs). In this paper, we report two deep blue molecules, PITO and PISF, which share similar chemical structures but exhibit different photophysical and device properties. These two molecules consist of phenanthroimidazole and dibenzothiophene analogues. The distinction of their chemical structures lies in the different oxidation states of the S atom. For PITO, the S atom is oxidized and the resulting structure dibenzothiophene S,S-dioxide becomes electron deficient...
January 10, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28067013/effect-of-mg-doping-in-sr2-sio4-eu-2-nanophosphors-for-blue-and-white-emission-at-near-uv-excitation
#10
Sumit Dubey, Pratik Deshmukh, S Satapathy, M K Singh, P K Gupta
Nanophosphors of (Sr0.98-x Mgx Eu0.02 )2 SiO4 (x = 0, 0.18, 0.38, 0.58 and 0.78) were prepared through low temperature solution combustion method and their luminescence properties were studied. The emission peak for Eu(2)(+)  -doped Sr2 SiO4 nanophosphor is observed at ~490 nm and ~553 nm corresponding to two Sr(2)(+) sites Sr(I) and Sr(II) respectively for 395 nm excitation. However the addition of Mg(2)(+) dopant in Sr2 SiO4 leads to suppression of ~553 nm emission peak due to absence of energy levels of Sr (II) sites which results in a single broad emission at ~460 nm...
January 8, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28058250/effect-of-a-phenolic-extract-from-olive-vegetation-water-on-fresh-salmon-steak-quality-during-storage
#11
Dino Miraglia, Sonia Esposto, Raffaella Branciari, Stefania Urbani, Maurizio Servili, Simona Perucci, David Ranucci
This study aimed to evaluate the antioxidant and antimicrobial effects of a phenolic extract from olive vegetation water on fresh salmon steaks stored at 4°C under modified atmosphere. Twenty-four salmon steaks were respectively immersed in solutions of the diluted phenolic extract at 1.5 g/L (A), 3 g/L (B), and water only as a control (CTR), packaged within a protective atmosphere (70% carbon dioxide, 25% nitrogen and 5% oxygen) and then stored at 4°C. After 2 h, and 3 and 6 days of storage, the fish samples were analysed for the total viable count, Enterobacteriaceae count, pH, colour (CIE L*a*b* colour system), phenolic composition, atocopherol content, antioxidant activity by 2,2- diphenyl- 1-picrylhydrazyl (DPPH˙) assay, and thiobarbituric reactive substances (TBARS)...
September 20, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28056924/anti-arthritic-activity-of-ethanol-extract-of-claoxylon-indicum-on-freund-s-complete-adjuvant-induced-arthritis-in-mice
#12
Yong Chen, Qi-Wen Wang, Jian Zuo, Jian-Wei Chen, Xiang Li
BACKGROUND: Claoxylon indicum Hassk. (Euphorbiaceae), named Diu Le Bang, have functions of dehumidification and relieving swelling pain, and is used as a folk medicine to treat Rheumatoid arthritis (RA), lumbocrural pain and foot edema in the south of China. The aim of the present study was to investigate the anti-arthritic activity of the ethanol extract of Claoxylon indicum (CIE) on mice with adjuvant induced joint arthritis. METHODS: Adjuvant arthritis was induced in mice by subcutaneous injection of complete Freund's adjuvant into the plantar surface of right hind paw...
January 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28048561/su-f-t-452-influence-of-dose-calculation-algorithm-and-heterogeneity-correction-on-risk-categorization-of-patients-with-cardiac-implanted-electronic-devices-undergoing-radiotherapy
#13
P Iwai, L Nadler Lins
PURPOSE: There is a lack of studies with significant cohort data about patients using pacemaker (PM), implanted cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT) device undergoing radiotherapy. There is no literature comparing the cumulative doses delivered to those cardiac implanted electronic devices (CIED) calculated by different algorithms neither studies comparing doses with heterogeneity correction or not. The aim of this study was to evaluate the influence of the algorithms Pencil Beam Convolution (PBC), Analytical Anisotropic Algorithm (AAA) and Acuros XB (AXB) as well as heterogeneity correction on risk categorization of patients...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047140/su-f-t-325-on-the-use-of-bolus-in-dosimetry-and-dose-reduction-for-pacemaker-and-defibrillator
#14
W Liu, D Zhu, S Trumpore, R Kenneth, S Higgins, R Nath, Z Chen
PURPOSE: Special attention is required in planning and administering radiation therapy to patients with cardiac implantable electronic devices (CIEDs), such as pacemaker and defibrillator. The range of dose to CIEDs that can induce malfunction is very large among CIEDs. Significant defects have been reported at dose as low as 0.15Gy. Failures causing discomfort have been reported at dose as low as 0.05Gy. Therefore, accurate estimation of dose to CIED and dose reduction are both important even if the dose is expected to be less than the often-used 2Gy limit...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28035781/controlling-singlet-triplet-energy-splitting-for-deep-blue-thermally-activated-delayed-fluorescence-emitters
#15
Lin-Song Cui, Hiroko Nomura, Yan Geng, Jong Uk Kim, Hajime Nakanotani, Chihaya Adachi
The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor-acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2 % with CIE coordinates of (0.148, 0.098).
December 30, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/28034314/highly-simplified-reddish-orange-phosphorescent-organic-light-emitting-diodes-incorporating-a-novel-carrier-and-exciton-confining-spiro-exciplex-forming-host-for-reduced-efficiency-roll-off
#16
Ting Xu, Ye-Xin Zhang, Bo Wang, Chen-Chao Huang, Imran Murtaza, Hong Meng, Liang-Sheng Liao
A novel exciplex-forming host is applied so as to design highly simplified reddish orange light-emitting diodes (OLEDs) with low driving voltage, high efficiency, and an extraordinarily low efficiency roll-off, by combining N,N-10-triphenyl-10H-spiro [acridine-9,9'-fluoren]-3'-amine (SAFDPA) with 4,7-diphenyl-1,10-phenanthroline (Bphen) doped with trivalent iridium complex bis(2-methyldibenzo[f,h]quinoxaline) (acetylacetonate)iridium(III) (Ir(MDQ)2(acac)). The reddish orange OLEDs achieve a strikingly high power efficiency (PE) of 31...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28032874/evoluci%C3%A3-n-de-la-mortalidad-por-accidentes-de-transporte-en-navarra-durante-1999-2013-caracter%C3%A3-sticas-de-las-personas-y-veh%C3%A3-culos-involucrados
#17
P A De la Rosa Fernández-Pacheco, J Delfrade Osinaga, Y Floristán Floristán, R Teijeira Alvarez, C Moreno-Iribas
Fundamento. Se analizan las tendencias de la mortalidad por accidentes de transporte entre 1999 y 2013 y se evalúa el impacto de la introducción del permiso de conducción por puntos en Navarra.Material y métodos. Los datos para la realización de este estudio proceden de los ficheros de defunciones según la causa de muerte que anualmente publica el Instituto Nacional de Estadística (INE). La codificación de la causa de defunción se realizó con la CIE-10, a partir de la información de los documentos estadísticos de defunción y los informes forenses...
December 30, 2016: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/28031277/the-increased-risk-of-stroke-transient-ischemic-attack-in-women-with-a-cardiac-implantable-electronic-device-is-not-associated-with-a-higher-atrial-fibrillation-burden
#18
Giuseppe Boriani, Gregory Y H Lip, Renato Pietro Ricci, Alessandro Proclemer, Maurizio Landolina, Maurizio Lunati, Luigi Padeletti, Gabriele Zanotto, Giulio Molon, Mauro Biffi, Roberto Rordorf, Fabio Quartieri, Maurizio Gasparini
AIMS: To evaluate if the increased thromboembolic risk in female patients may be related to a higher burden of atrial fibrillation (AF). METHODS AND RESULTS: Data collected in a prospective observational research of patients implanted with a cardiac implantable electrical device (CIED) were analysed. We included 2398 patients: 489 (20.4%) were female and 1909 (79.6%) were male (oral anticoagulants treatment in 23.2%, independent of gender). During the follow-up (mean 42...
December 28, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28029245/selective-binding-of-genomic-escherichia-coli-dna-with-zno-leads-to-white-light-emission-a-new-aspect-of-nano-bio-interaction-and-interface
#19
Sumita Das, Srikrishna Pramanik, Sabyasachi Chatterjee, Partha Pratim Das, Parukuttyamma Sujatha Devi, Gopinatha Suresh Kumar
Here, we report for the first time, a novel and intriguing application of deoxyribonucleic acid (DNA) in the area of optics by demonstrating white light emission by tuning the emission of a nanomaterial, ZnO rods, exhibiting surface defects, in the presence of genomic Escherichia coli DNA with a comparatively high quantum efficiency. In order to understand the DNA specificity, we have also studied the interaction of ZnO with CT, and ML DNA, ss EC DNA, synthetic polynucleotides and different mononucleosides and bases...
December 28, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28029223/high-power-efficiency-blue-to-green-organic-light-emitting-devices-using-isonicotinonitrile-based-fluorescent-emitters
#20
Hisahiro Sasabe, Natsuki Onuma, Yuji Nagai, Takashi Ito, Junji Kido
In this study, we developed 9,10-dihydro-9,9-dimethylacridine (Ac) or phenoxazine (PXZ)-substituted isonicotinonitrile (INN) derivatives, which are denoted as 2AcINN, 26AcINN, and 26PXZINN, as a novel series of thermally activated delayed fluorescent (TADF) emitters. These emitters showed reasonably high photoluminescent quantum yields of 71%-79% in the host films and high power efficiency organic light-emitting devices (OLEDs). A sky-blue emitter, 26AcINN was observed to exhibit a low turn-on voltage of 2...
December 28, 2016: Chemistry, An Asian Journal
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