Results 81 to 90 of about 116,513 (299)

The Role of Theoretical Calculations for INVEST Systems: Complementarity Between Theory and Experiments and Rationalization of the Results

open access: yesAdvanced Optical Materials, EarlyView.
Theoretical lessons are key for molecules presenting an inverted singlet‐triplet excited state (e.g. S1 and T1) energy difference. This perspective provides a snapshot of the role played by calculations in last years, not only to anticipate experimental findings but also for driving high‐throughput virtual screenings, as well as the main challenge to ...
Ángel José Pérez‐Jiménez   +2 more
wiley   +1 more source

Evaluation of friction produced by self-ligating, conventional and Barbosa Versatile brackets

open access: yesRevista de Odontologia da UNESP
Introduction The Barbosa Versatile bracket design may provide lower frictional force and greater sliding. However, no in vitro studies have shown its sliding mechanisms and frictional resistance, particularly in comparison with other self-ligating or ...
Jurandir Antonio BARBOSA   +2 more
doaj   +1 more source

Fracture strength of monocrystalline and polycrystalline ceramic brackets during archwire torque

open access: yesRevista de Odontologia da UNESP, 2019
Introduction In recent years, there has been an increasing demand for esthetic treatments, especially among orthodontic patients. Objective This study determined the fracture strength of monocrystalline and polycrystalline ceramic brackets of different ...
Társio Caleb Bernardon KIELING   +5 more
doaj   +1 more source

Spin‐Valley Polarization Control in WSe2 Monolayers using Photochemical Doping

open access: yesAdvanced Optical Materials, EarlyView.
A photochemical doping method is employed to modulate the spin‐valley polarization in WSe2 monolayers by tuning the carrier density from electron‐rich to hole‐rich regimes. This controlled doping enables a three‐fold variation in exciton polarization, revealing relaxation channels driven by scattering between excitons and charge carriers in two ...
Eirini Katsipoulaki   +11 more
wiley   +1 more source

Spectrophotometric assessment of tooth bleaching under orthodontic braquets bonded with different materials

open access: yesRevista de Odontologia da UNESP, 2017
Introduction patients have been submitted to tooth bleaching during orthodontic treatment for aesthetic purposes or to anticipate the replacement of restorations after completion of the treatment.
Camila Maria Lima de CASTRO   +4 more
doaj   +1 more source

BP/MoS₂ Van Der Waals Heterojunctions for Self‐Powered Photoconduction

open access: yesAdvanced Optical Materials, EarlyView.
A multilayer black phosphorus (BP)/monolayer MoS₂ vertical heterostructure is investigated using four‐probe measurements. The device exhibits rectifying behavior, dominant n‐type transport, low contact resistance, and an interface barrier of 68 meV.
Adolfo Mazzotti   +9 more
wiley   +1 more source

PARTICULAR ASPECTS OF ORTHODONTIC DEBONDING TECHNIQUES DURING CERAMIC BRACKETS REMOVAL

open access: yesRomanian Journal of Medical and Dental Education, 2021
Enamel cracks or enamel microcracks are defined as a fracture at the enamel surface usually when the ceramic brackets debonding procedure takes place.
Nikolaos Karvelas   +5 more
doaj  

Quadratic and quartic integrals using the method of brackets

open access: yes, 2019
16 pages, plain ...
Ananthanarayan, B   +3 more
openaire   +2 more sources

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