Results 1 to 10 of about 146 (93)

Gas Chromatography Coupled to High Resolution Time-of-Flight Mass Spectrometry as a High-Throughput Tool for Characterizing Geochemical Biomarkers in Sediments [PDF]

International Journal of Analytical Chemistry, 2018
The performance of gas chromatography coupled to high-resolution time-of-flight mass spectrometry (GC-HRTofMS) for characterizing geochemical biomarkers from sediment samples was evaluated. Two approaches to obtain the geochemical biomarkers were tested:
Hector Henrique Ferreira Koolen, Clécio Fernando Klitzke, Joe Binkley, Jeffrey Patrick, Ana Cecília Rizatti de Albergaria-Barbosa, Rolf Roland Weber, Márcia Caruso Bícego, Marcos Nogueira Eberlin, Giovana Anceski Bataglion   +8 more
doaj   +3 more sources

Effect of Moving the Tip of the Light Curing Unit on the Irradiance Value Delivered. [PDF]

J Esthet Restor Dent
ABSTRACT Objective To determine the effect of differences in the distances and radial positions of the tips of Light‐Curing Units (LCU) on the irradiance values delivered. Materials and Methods Four LCUs—Valo X, Emitter A, CuringPen, and Pinkwave were tested at different distances from the tip (0, 2, 4, 6, 8 mm) and radial displacements (2 and 4 mm ...
Guarneri J, Collares FM, Gareau A, Price RB.   +3 more
europepmc   +2 more sources

THE VALO GRANDE CHANNEL IN THE CANANÉIA-IGUAPE ESTUARY-LAGOON COMPLEX (SP, BRAZIL): ENVIRONMENTAL HISTORY, ECOLOGY, AND FUTURE PERSPECTIVES [PDF]

Ambiente & Sociedade, 2019
The channel of the Valo Grande (VG) in the Ribeira de Iguape River (São Paulo State, Brazil), inaugurated in 1852, is one of the largest environmental disasters in the Brazilian coast.
Helbert Medeiros Prado, Rui Sérgio Sereni Murrieta, Daniel Rodrigues do Nascimento Junior   +2 more
exaly   +5 more sources

Thermal Effects of Rapid High-Intensity Light Curing on Bulk-Fill Resin-Based Composites: A Systematic Review and Meta-Analysis. [PDF]

ScientificWorldJournal
Objective The objective of this study is to evaluate whether high‐intensity, short‐duration light curing of bulk‐fill resin‐based composite (RBC) causes an increase in temperature of the material, compared to the standard light‐curing protocol. Methods This review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and
Miranda SB, Santi MR, de Mendonça GL, Falson LAS, Barza MJGS, de Sá Rodrigues VM, de Andrade AKM, Lins RBE, Montes MAJR.   +8 more
europepmc   +2 more sources

Evaluation of compressive and adhesive strengths of a hybrid ceramic and 5Y-PSZ zirconia cemented with three different materials. [PDF]

Eur J Oral Sci
Abstract This study aimed to evaluate the compressive and adhesive strengths of ceramic restorations (PICN and 5Y‐PSZ zirconia) cemented with one of three types of cements: conventional glass ionomer cement (GI), resin‐modified glass ionomer cement (RM‐GI), and self‐adhesive resin cement (R).
Moreschi L, De Carli JP, Fuhr MCS, Dos Santos RB, da Silva PRP, Corazza PH.   +5 more
europepmc   +2 more sources

UV-Mediated Photofunctionalization of Indirect Restorative Materials Enhances Bonding to a Resin-Based Luting Agent. [PDF]

Biomed Res Int, 2021
Purpose. The potential of UV‐mediated photofunctionalization to enhance the resin‐based luting agent bonding performance to aged materials was investigated. Methods. Sixty samples of each material were prepared. Yttria‐stabilized zirconia (YZr) and Pd‐Au alloy (Pd‐Au) plates were fabricated and sandblasted.
Ishikawa K, Yamauti M, Tichy A, Ikeda M, Ueno T, Wakabayashi N, Thanatvarakorn O, Prasansuttiporn T, Klein-Junior CA, Takahashi A, Takagaki T, Nakajima M, Tagami J, Hosaka K.   +13 more
europepmc   +2 more sources

Anthropogenic influences in a lagoonal environment: a multiproxy approach at the valo grande mouth, Cananéia-Iguape system (SE Brazil)

Brazilian Journal of Oceanography, 2009
The Cananéia-Iguape system, SE Brazil, consists of a complex of lagoonal channels, located in a United Nations Educational, Scientific and Cultural Organization (UNESCO) Biosphere Reserve.
Michel Michaelovitch De Mahiques, Leticia Burone, Rubens Cesar Lopes Figueira   +2 more
exaly   +3 more sources

Coastline changes and sedimentation related with the opening of an artificial channel: the Valo Grande Delta, SE Brazil

Anais Da Academia Brasileira De Ciencias, 2014
The role played by human activity in coastline changes indicates a general tendency of retreating coasts, especially deltaic environments, as a result of the recent trend of sea level rise as well as the blockage of the transfer of sediments towards the ...
Michel M Mahiques, Rubens Cesar Lopes Figueira   +1 more
exaly   +3 more sources

Flexural Strength and Stress Analysis of CAD-CAM Milled Glass Fiber Post and Core [PDF]

International Journal of Dentistry
Intraradicular posts have the potential to induce mechanical stresses within the root structure during masticatory activities, hence contributing to fatigue and ultimately resulting in the fracture of the remaining dental structure. The objective of this work was to compare the stress pattern generated on the root by a computer‐aided design and ...
dos Santos S, Felizardo K, Guiraldo R, Berger S, Lopes M.   +4 more
europepmc   +2 more sources

Esthetic Rehabilitation through Crown Lengthening Surgery and Conservative CAD/CAM Veneers: A Multidisciplinary Case Report. [PDF]

Case Rep Dent, 2016
This case report describes a successful multidisciplinary approach used to improve the smile esthetics of a patient presenting with excessive gingival display, asymmetric gingival margins, and small upper anterior teeth and lower anterior teeth. The treatment combined esthetic crown lengthening, dental bleaching, and restorative dentistry using CAD/CAM
Passos L, Soares FP, Gallo M.
europepmc   +2 more sources