The aim of the present study was to compare the root canal preparation ability of rotary nickel-titanium (NiTi) Hero 642 and K3 files in curved mandibular or maxillary molars. A total of 40 extracted mandibular molars with two separate mesial canals, an apical width of approximately size ≤15 and a root canal curvature of 15-30° were randomly divided into two groups and instrumented using Hero 6...

OBJECTIVE To describe the baseline characteristics in patients who chose placement of a LAP-BAND AP® System (LBAP) and participated in the Helping Evaluate Reduction in Obesity (HERO) Study across regions. PATIENTS AND METHODS HERO is a five-year, prospective, multicenter, international study of patients with LBAP placement between July 22, 2009 and January 31, 2011. In addition to baseline a...

In her article "Virtuality, Nationalism, and Globalization in Zhang's Hero" Ping Zhu examines how Yimou Zhang's martial arts film dislodges the historical tale from its spatiotemporal context by creating virtual images, characters, narratives, and ideologies, and presents the virtual idea of tianxia (天下) (all under heaven) as an active mode of participation in the virtual global. Amidst the sur...

The aim of the study was to compare the manual and rotary endodontic instruments focusing on risk of perforation when the whole root canal length is instrumented as well as the time required for preparation in primary teeth Fifty four teeth were divided randomly into three groups.Group I: The root canals were prepared manually with K-files. Group II : ProTaper instruments were used in a crown-d...

the best way to describe the discovery of cholera toxin by Dr Sambhu Nath De in Calcutta (now known as Kolkata). In a pioneering series of research spanning less than a decade starting from 1952 and culminating in the Nature paper of 19591, De worked relentlessly in search of the elusive toxin that caused the epidemic responsible for the killer disease cholera. De’s discovery of cholera toxin w...

© 2016 The author(s). Published by Taylor & francis This is an open access article distributed under the terms of the Creative Commons attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. CONTACT francesco Carelli [email protected] Kazimir Malevich (...