PURPOSE The aim of this study was to compare the cleanliness of root canal walls after retreatment using ProTaper Next (PTN), ProTaper Universal Retreatment (PTR) nickel-titanium (NiTi) systems and Hedström hand files in curved mesial canals of mandibular molar teeth and the time required for gutta-percha and sealer removal. MATERIALS AND METHODS Ninety mandibular molar teeth with curved mesi...

Background. Infantile colic is a distressing and common condition for which there is no proven standard treatment. Objective. To compare the efficacy of Mentha piperita with simethicone in treatment for infantile colic. Methods. A double-blind crossover study was performed with 30 infants attending IMIP, Recife, Brazil. They were randomized to use Mentha piperita or simethicone in the treatment...

Among extinct radioactivities present in meteorites, Fe (t1/2 = 1.49 Myr) plays a key role as a high-resolution chronometer, a heat source in planetesimals, and a fingerprint of the astrophysical setting of solar system formation. A critical issue with Fe is that it could have been heterogeneously distributed in the protoplanetary disk, calling into question the efficiency of mixing in the sola...

The purpose of the present study was to examine the effect of static and dynamic stretching on running velocity in adolescent basketball players. Fifteen adolescent male basketball players (age 14,93±0,25y) volunteered to participate in this study. The dynamic and static protocols were performed randomly in different days, a week apart. The programs included stretching exercises for knee extens...

In this work we perform an observational data analysis on the energy momentum squared gravity model. Possible solutions for matter density are obtained from model and their cosmological implications studied. Some recent is used to constrain parameters using statistical techniques. We have cosmic chronometer SNe Type-Ia Riess (292) $H(z)-z$ data-sets in our study. Along with also baryon acoustic...

Abstract The cosmological jerk parameter j is reconstructed in a non-parametric way from observational data independent of fiducial model. Cosmic Chronometer as well the Supernovae (the Pantheon compilation) are used for purpose. values found to be consistent with standard $$\Lambda $$ ? CDM model within $$2\...

Background and study aim. The purpose of this was to determine the relative contribution energy systems in a freestyle (FS) Greco-Roman (GR) wrestling match, quantity quality obtained scores, competition efficiency winners 2017 Wrestling World Championships (WCh) through analysing recorded videos all matches event.
 Material method. materials present were 295 FS 266 GR WCh, multimedia play...

Zircon (ZrSiO4) is the most commonly used mineral in U–Pb geochronology. Although it has proven to be a robust chronometer, it can suffer from Pb-loss or elevated common Pb, both of which impede precision and accuracy of age determinations. Chemical abrasion of zircon involves thermal annealing followed by relatively low temperature partial dissolution in HF acid. It was specifically developed ...

AIM To assess the time to obtain reliable oxygen saturation readings by different pulse oximeters during neonatal resuscitation in the delivery room or NICU. METHODS Prospective study comparing three different pulse oximeters: Masimo Radical-7 compared simultaneously with Ohmeda Biox 3700 or with Nellcor N395, in newborn infants who required resuscitation. Members of the research team placed ...