Results 41 to 50 of about 3,618 (195)

The affinity of bentonite and WO3 nanoparticles toward epoxy resin polymer for radiation shielding

e-Polymers, 2023
A thorough comparative analysis was conducted between pure epoxy and a novel epoxy composite that included bentonite and WO3 nanoparticles in varying ratios. This study examined five distinct novel epoxy samples (E00, EB0, EBW1, EBW2, and EBW3) to assess
Elsafi Mohamed, Almuqrin Aljawhara H., Yasmin Sabina, Sayyed M. I.   +3 more
doaj   +1 more source

Mortality in functional seizures: Evidence from a large electronic health records dataset

Epilepsia, EarlyView.
Abstract Objective Several studies have found that people with functional seizures (FS) have increased mortality, approaching that of epilepsy (epileptic seizures [ES]). The small numbers of deaths in these studies make it unclear whether they can be attributed to comorbidities. We used a very large electronic health database to compare mortality in FS
Richard A. Kanaan, Rok Berlot, Tom Pollak, Markus Reuber, Stoyan Popkirov   +4 more
wiley   +1 more source

Polarized effects of adenosine on blood–brain barrier integrity: Tightening from the luminal and opening from the abluminal side

British Journal of Pharmacology, EarlyView.
Background and Purpose Adenosine as a signalling molecule modifies blood–brain barrier (BBB) tightness in pathological conditions. Our aim was to investigate the direct and polarized effects of adenosine on the BBB using co‐culture and in vivo models. Experimental Approach The expression of adenosine receptors was measured by qRT‐PCR.
András Harazin, Gabriela Hurtado‐Alvarado, Lilla Barna, Arturo Contis‐Montes de Oca, Rocío Ruíz‐Manzano, Krisztián Laczi, András Kincses, Gergő Porkoláb, Gang Chen, Beatriz Gómez‐González, Mária A. Deli   +10 more
wiley   +1 more source

Color reproduction trueness of 3D-printed full-color dental casts with scans derived from an intraoral scanner

, 2023
Purpose To investigate the effects of shade tab color variations (tooth-colored vs. gingiva-colored) and surface treatment (application of mineral oil) on the trueness of color reproduction from dental shade tabs to 3D-printed full-color dental casts ...
Alfaraj, Amal, Lin, Wei-Shao
core   +1 more source

EVALUATION OF COLOR DUPLICATION IN A PARTIALLY STABILIZED ZIRCONIA MATERIAL (IN VITRO STUDY) [PDF]

Alexandria Dental Journal
Background: The shade duplication procedure is essential in fabricating ceramic dental restorations, yet there is limited information on color duplication for high translucent zirconia.Aim: To evaluate the color differences between intended and ...
mohamed elgoarany, Ihab Hammad, islam gad   +2 more
doaj   +1 more source

High‐Concentration Hydrogen Peroxide Gels Containing Calcium Polyphosphate Associated With Violet Led Light: Bleaching Efficacy and Effects on Enamel Properties

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effect of violet LED light (VL) and hydrogen peroxide (HP) in‐office bleaching gels supplemented with calcium polyphosphate (CaPP) or calcium gluconate (GU): Materials and Methods Bovine enamel blocks (n = 10) were randomly assigned: commercial HP gel, commercial HP gel with GU, or experimental 35% HP with or without
Hemanuelly Albuquerque dos Anjos, Débora Alves Nunes Leite Lima, Carolina Meneghin Barbosa, Klaus Rischka, Waldemir Francisco Vieira‐Junior   +4 more
wiley   +1 more source

Effects of Bleaching Protocols on the Esthetic Outcome and Surface Integrity of Enamel Treated With an Ammonia‐Free Silver Fluoride Solution

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To investigate the effects of three bleaching protocols on the color stability and surface roughness of enamel previously treated with a water‐based, ammonia‐free silver fluoride solution (Riva Star Aqua). Materials and Methods Eighty‐eight human enamel/dentin specimens were demineralized and treated with Riva Star Aqua, divided into
Ahmed Alshawi, Fadimeana Lal, Esra Yildiz, Sevda Ozel Yildiz, Ugur Erdemir   +4 more
wiley   +1 more source

The challenge of macroeconomic understanding

PSL Quarterly Review, 2013
The paper is a contribution to a series of recollections and reflections on the professional experiences of distinguished economists which the Banca Nazionale del Lavoro Quarterly Review started in 1979.
E. MALINVAUD
doaj   +1 more source

Effects of Substructure Color and Restoration Thickness on the Final Color of Ultra‐Translucent Zirconia Ceramics

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This in vitro study aimed to evaluate the effects of substructure color and restoration thickness on the final color of shade‐gradient ultra‐translucent zirconia ceramics. Material and Methods A total of 180 flat‐shaped ultra‐translucent zirconia specimens (5Y‐PSZ) with thicknesses of 0.4, 0.6, and 0.8 mm (n = 60) were fabricated and
Elif Yılmaz Biçer, Merve Bankoğlu Güngör, Cemal Aydın   +2 more
wiley   +1 more source

Effect of Delayed Exposure to Staining Agents on the Color Stability and Translucency of Esthetic Resin Composites

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of delayed exposure to staining agents and resin composite type on the discoloration and translucency changes of esthetic resin composites. Materials and Methods Five resin composites (Asteria, Tokuyama; Brillant EverGlow, Coltene; GC A'chord; Harmonize; and Filtek Ultimate, 3M ESPE) were tested. Disc specimens
Hüseyin Hatırlı, Sevilay Köse, Dorukcan Yıldırım, Gülşah Tonga, Emine Şirin Karaarslan   +4 more
wiley   +1 more source