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Justin M Cloutier, Clarence Khoo, Brett Hiebert, Anthony Wassef, Colette M Seifer
OBJECTIVES: The objectives of this study were to evaluate the effectiveness of a physician notification system for atrial fibrillation (AF) detected on cardiac devices, and to assess predictors of anticoagulation in patients with device-detected AF. METHODS: In 2013, a physician notification system for AF detected on a patient's CIED [including pacemakers, implantable cardioverter defibrillators (ICD) or cardiac resynchronization therapy (CRT) devices] was implemented, with a recommendation to consider oral anticoagulation in high-risk patients...
April 2018: Therapeutic Advances in Cardiovascular Disease
Patrycja Pruszkowska, Radosław Lenarczyk, Jakub Gumprecht, Ewa Jedrzejczyk-Patej, Michał Mazurek, Oskar Kowalski, Adam Sokal, Tomasz Podolecki, Stanisław Morawski, Witold Streb, Katarzyna Mitręga, Zbigniew Kalarus
BACKGROUND: Pulmonary vein isolation with cryobaloon catheter ablation (CCB) is an effective method oftreatment in patients with atrial fibrillation (AF) but in patients with heart failure (HF) therole of CCB remains unknown. AIMS: To assess feasibility, effectiveness and safety of CCB in patients with HF and cardiac electronic devices (CIED), the impact of the procedure on symptoms and echocardiographic parameters. METHODS: Thirty consecutive HF patients with left ventricular ejection fraction (EF)≤40% and CIED, referred for CCB of AF were included...
March 12, 2018: Kardiologia Polska
Sascha Hein, Jaap J Ten Bosch
OBJECTIVE: Restorative and prosthetic materials should provide an appearance similar to natural teeth under all light conditions, including UV-rich environments and daylight. Various studies claim that UV-induced fluorescence makes teeth whiter and brighter in daylight. The aim of this paper is to determine experimentally the significance of tooth fluorescence in natural sunlight on perceived tooth color. METHODS: A total of 35 extracted, hydrated teeth without restorations or endodontic treatments were evaluated in an experimental setup...
March 7, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
Kai Liu, Xuan Zhang, Kelu Yan
Tetraacetylhydrazine (TH) as bleach activator for H2 O2 cotton bleaching was synthesized and characterized by1 H NMR,13 C NMR and MS spectra. TH has better solubility than that of TAED. The CIE whiteness index (WI), H2 O2 decomposition rate and bursting strength were employed to investigate the performance of H2 O2 /TH bleaching system. By addition of TH, WI and H2 O2 decomposition rate increased significantly at 70 °C. Bleaching temperature, NaHCO3 concentration and bleaching time were also discussed in detail and the loss of bursting strength is not clear...
May 15, 2018: Carbohydrate Polymers
Juan C Stagnaro
Since the late 19th century, Argentinean psychiatrists have been developing classifcations of psychiatric disorders. Their work has had local originality and fruitful exchange with international controversies on the subject. The thinking of some Argentinean psychiatrists transcended the borders of the country and was adopted in the South American region, as was the case with the classifcation proposed by José T. Borda. There were also historical anticipations of concepts that were not known in other latitudes: "oligotimia", a category created by Enrique Pichon-Rivière, preceded the characterization of early childhood autism by Leo Kanner...
May 2017: Vertex: Revista Argentina de Psiquiatriá
Ankita Chamaria, Meena A Aras, Vidya Chitre, Praveen Rajagopal
PURPOSE: To evaluate the effect of chemical disinfection on the color stability of room temperature vulcanizing (RTV) maxillofacial silicone elastomer with and without pigment addition. MATERIALS AND METHODS: Sixty specimens were obtained from a RTV maxillofacial silicone. The specimens were randomly divided into 6 groups according to pigments and disinfectant to be used (n = 10). NP-DW-nonpigmented silicone specimens to be immersed in distilled water (control)...
March 8, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
James E Peacock, Jeanette M Stafford, Katherine Le, Muhammad Rizwan Sohail, Larry M Baddour, Jordan M Prutkin, Stephan B Danik, Holenarasipur R Vikram, Marta Hernandez-Meneses, José M Miró, Elisabeth Blank, Christoph K Naber, Roger G Carrillo, Arnold J Greenspon, Chi-Hong Tseng, Daniel Z Uslan
BACKGROUND: Published guidelines mandate complete device removal in cases of cardiovascular implantable electronic device (CIED) infection. Clinical predictors of successful salvage of infected CIEDs have not been defined. METHODS: Data from the Multicenter Electrophysiologic Device Infection Collaboration (MEDIC), a prospective, observational, multinational cohort study of CIED infection, were utilized to investigate whether clinical predictors of successful salvage of infected devices could be identified...
March 8, 2018: Pacing and Clinical Electrophysiology: PACE
Flàvia Pardo Salata Nahsan, Maria Janete Oliveira Reis, Luciana Fàvaro Francisconi-Dos-Rios, Luciana Vasconcelos Leão, Luiz Renato Paranhos
Products for tooth whitening (or tooth color maintenance) that improve smile esthetics have become increasingly popular due to their easy accessibility and low cost. This in vitro study assessed the effect of whitening mouthwash on bovine tooth color. Forty-eight bovine teeth were divided into 3 immersion groups: SL, artificial saliva (control); CLW, Colgate Luminous White; and OBW, Oral-B 3D White. After prophylaxis with pumice, the initial color was measured using the CIE L*a*b* system. Teeth were immersed in the solutions for 2 minutes, 3 times per day, for 30 days...
March 2018: General Dentistry
Muzaffer Kahyaoğlu, Mustafa Ağca, Ender Özgün Çakmak, Çetin Geçmen, İbrahim Akın İzgi
Contrast-induced encephalopathy (CIE) is a rare complication of angiography. Presently reported is the case of a patient diagnosed with CIE following peripheral angioplasty with the non-ionic contrast agent, iohexol. A 66-year-old male patient described intermittent claudication and peripheral arterial disease was suspected. Lower extremity angiography was performed, and following dilation of a 7.0x150-mm balloon, a 9.0x57-mm stent was placed in the lesioned vessel. The patient subsequently developed confusion and cortical blindness, and a seizure occurred 1 hour after the procedure...
March 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Gongchang Guan, Zhongwei Liu, Yong Zhang, Fangyun Wang, Haiming Ji, Xuewen Li, Yuan Chen, Xiaoqiang Yang, Jianxia Wei, Kai Yu, Ming Zhang
BACKGROUND Cardiac device infection (CDI) is a serious complication of cardiovascular implantable electronic device (CIED) implantations. Many risk factors have been identified, but several are still uncertain. This study aimed to identify and evaluate the risk factors. Moreover, an infection control protocol (ICP) was carried out, and its efficacy in reducing CDIs was investigated. MATERIAL AND METHODS A total of 1259 patients who received permanent pacemaker (PPM) implantations were enrolled in this study in a 3-year period in a high-volume center and low-volume centers in the central area of Shaanxi Province, China...
March 6, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Iain Hamilton, Nathan Chander, Nathan J Cheetham, Minwon Suh, Matthew Dyson, Xu-Hua Wang, Paul N Stavrinou, Michael Cass, Donal D C Bradley, Ji-Seon Kim
We report a novel approach to the achievement of deep-blue, high-efficiency, and long-lived solution processed polymer light-emitting diodes (PLEDs) via a simple molecular-level conformation change whereby we introduce rigid β-phase segments into a 95% fluorene - 5% arylamine copolymer emission layer (EML). The arylamine moieties at low density act as efficient exciton formation sites in PLEDs whilst the conformational change alters the nature of the dominant luminescence from a broad, charge-transfer like emission to a significantly blue-shifted and highly vibronically structured, excitonic emission...
March 6, 2018: ACS Applied Materials & Interfaces
Fangyuan Gai, Mengmeng Fan, Xudong Yang, Ce Hao, Yuhui Ao, Chunying Duan, Yunling Liu, Qisheng Huo
This work demonstrated the synthesis and design of ultra-bright and ultra-small fluorescent nanoparticles, which were prepared by encapsulating 4-(diphenylamino)benzaldehyde (DPB) in silica cross-linked micellar nanoparticles (SCMNPs). The DPB-doped SCMNPs (DPB-SCMNPs) exhibited ultra-bright fluorescence in an aqueous medium that was 22 times brighter than that of free DPB molecules in an organic solvent. For the first time, density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations were used to confirm that the enhanced brightness of the DPB-SCMNPs was due to a hydrogen bond-induced mechanism...
February 24, 2018: Journal of Colloid and Interface Science
J L Arco-Tirado, F Fernández-Martín, A M Ramos-García, L Littvay, J Villoria, J A Naranjo
This observational study intends to estimate the causal effects of an English as a Medium of Instruction (EMI) program (as predictor) on students Grade Point Average (GPA) (as outcome) at a particular University in Spain by using a Counterfactual Impact Evaluation (CIE). The need to address the crucial question of causal inferences in EMI programs to produce credible evidences of successful interventions contrasts, however, with the absence of experimental or quasi-experimental research and evaluation designs in the field...
February 21, 2018: Evaluation and Program Planning
Jennifer G Bray, Kenneth C Reyes, Amanda J Roberts, Donna L Gruol
CNS actions of the chemokine CCL2 are thought to play a role in a variety of conditions that can have detrimental consequences to CNS function, including alcohol use disorders. We used transgenic mice that express elevated levels of CCL2 in the CNS (CCL2-tg) and their non-transgenic (non-tg) littermate control mice to investigate long-term consequences of CCL2/alcohol/withdrawal interactions on hippocampal synaptic function, including excitatory synaptic transmission, somatic excitability, and synaptic plasticity...
February 27, 2018: Neuropharmacology
Juewen Zhao, Bin Liu, Zhongyi Wang, Qing-Xiao Tong, Xiaoyang Du, Cai-Jun Zheng, Hui Lin, Si-Lu Tao, Xiao-Hong Zhang
Three deep blue emitters PPi-Pid, PPi-Xid and PPi-Mid based on a novel conjugated system Phenantroimidazole-π-indolizine have been designed and synthesized. Here indolizine with appropriate π-conjugation length was used as the acceptor profited from its high fluorescence quantum yield and excellent electron transporting ability. Fluorescent organic light-emitting diodes (OLEDs) based on PPi-Pid, PPi-Xid and PPi-Mid achieved deep blue emissions with the Commission Internationale de L'Eclairage (CIE) coordinates of (0...
March 2, 2018: ACS Applied Materials & Interfaces
Suzy Wang, Peter Cathro, Geoffrey Heithersay, Nancy Briggs, Jithendra Ratnayake, Peter Zilm
BACKGROUND: Tooth discolouration could occur due to bacterial contamination in traumatised teeth. Hydrogen peroxide is the commonly used bleaching agent. However, due to concerns over safety, alternative-bleaching regimes such as sodium perborate (S) and thiourea-hydrogen peroxide (T) have been investigated. METHODOLOGY: Apices resected and pulp extirpated 99 premolars were divided into two groups. Group 1 and 2 was injected with blood and blood/bacteria, stored anaerobically for 35 days...
February 27, 2018: Australian Dental Journal
Giovanni Rovaris, Francesco Solimene, Antonio D'Onofrio, Gabriele Zanotto, Renato P Ricci, Tiziana Mazzella, Saverio Iacopino, Paolo Della Bella, Giampiero Maglia, Gaetano Senatore, Fabio Quartieri, Mauro Biffi, Antonio Curnis, Valeria Calvi, Antonio Rapacciuolo, Matteo Santamaria, Alessandro Capucci, Massimo Giammaria, Andrea Campana, Fabrizio Caravati, Daniele Giacopelli, Alessio Gargaro, Ennio C Pisanò
BACKGROUND: CHA2 DS2 -VASc is a validated score for predicting stroke in patients with atrial fibrillation (AF). OBJECTIVE: We sought to assess whether it can predict new-onset AF in a cohort of patients with cardiac implantable electronic devices (CIEDs) followed with remote monitoring. METHODS: Using the database of the Home Monitoring Expert Alliance project, we selected 2,410 patients with no documented AF who had received a CIED with diagnostics on atrial high rate episodes (AHRE)...
February 22, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Yasuhiro Tanimoto, Manamu Nagakura, Norihiro Nishiyama
PURPOSE: The purpose of this study was to investigate the combined effects of fiber loading and pigmentation on the color differences and flexural properties of glass fiber-reinforced thermoplastics (GFRTPs), for use in non-metal clasp dentures (NMCDs). METHODS: The GFRTPs consisted mainly of E-glass fibers, a polypropylene matrix, and a coloring pigment: the GFRTPs with various fiber loadings (0, 10, and 20mass%) and pigmentations (0, 1, 2, and 4mass%) were fabricated by using an injection molding...
February 20, 2018: Journal of Prosthodontic Research
Florence P Varodayan, Harpreet Sidhu, Max Kreifeldt, Marisa Roberto, Candice Contet
Excessive alcohol consumption in humans induces deficits in decision making and emotional processing, which indicates a dysfunction of the prefrontal cortex (PFC). The present study aimed to determine the impact of chronic intermittent ethanol (CIE) inhalation on mouse medial PFC pyramidal neurons. Data were collected 6-8 days into withdrawal from 7 weeks of CIE exposure, a time point when mice exhibit behavioral symptoms of withdrawal. We found that spine maturity in prelimbic (PL) layer 2/3 neurons was increased, while dendritic spines in PL layer 5 neurons or infralimbic (IL) neurons were not affected...
February 19, 2018: Neuropharmacology
Feng Li, Chao Nie, Lai You, Xiao Jin, Qin Zhang, Yuancheng Qin, Feng Zhao, Yinglin Song, Zhongping Chen, Qinghua Li
White light emitting diodes (WLEDs) based on quantum dots (QDs) are emerging as robust candidates for white light source, however they are suffering from the problem of energy loss resulted from the re-absorption and self-absorption among the employed QDs of different peak wavelengths. It still remains a challenging task to construct WLEDs based on single-phase QD emitters. Here, CdS QDs with short synthesis time is introduced to the fabrication of WLEDs. With short synthesis time, on one hand, CdS QD of small diameter with blue emission can be obtained...
February 22, 2018: Nanotechnology
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