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 +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 DentABSTRACT 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 +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.
Marília Cunha-Lignon +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]
ScientificWorldJournalObjective 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 +8 more
europepmc +2 more sources
Fracture Resistance of Extensively Compromised Anterior Teeth Restored With Fiberglass Posts and Biomimetic Protocols: An In Vitro Study. [PDF]
J Esthet Restor DentABSTRACT Objective Polyethylene fiber (PF) and fiberglass (FG) posts have been recommended for intraradicular anchorage when there is a significant loss of coronal structure. However, few studies have evaluated their performance in anterior teeth combined with direct restorations as an alternative to single crowns.
Haur CT +4 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 SciAbstract 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 +5 more
europepmc +2 more sources
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.
Rubens Cesar Lopes Figueira +2 more
exaly +3 more sources
Flexural Strength and Stress Analysis of CAD-CAM Milled Glass Fiber Post and Core. [PDF]
Int J DentIntraradicular 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 SER +4 more
europepmc +2 more sources
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 ...
Rubens Cesar Lopes Figueira +1 more
exaly +3 more sources
Mudanças morfológicas da extremidade NE da Ilha Comprida (SP) nos últimos dois séculos [PDF]
Geologia USP. Série Científica, 2008 A Ilha Comprida, uma barreira holocênica constituída de alinhamentos de cordões litorâneos, tem experimentado mudanças morfológicas intensas nos últimos 200 anos em sua extremidade nordeste e arredores.
Daniel Rodrigues do Nascimento Jr. +3 more
doaj +2 more sources