Results 21 to 30 of about 888,378 (285)

Derived Brackets [PDF]

Letters in Mathematical Physics, 2004
We survey the many instances of derived bracket construction in differential geometry, Lie algebroid and Courant algebroid theories, and their properties. We recall and compare the constructions of Buttin and Vinogradov, and we prove that the Vinogradov bracket is the skew-symmetrization of a derived bracket.
openaire   +3 more sources

Bracketing brackets with bras and kets [PDF]

Journal of Manufacturing Systems, 2021
10 pages, 9 ...
Emily Clark, Angelie Vincent, J. Nathan Kutz, Steven L. Brunton   +3 more
openaire   +2 more sources

The general harmonic-oscillator brackets: compact expression, symmetries, sums and Fortran code [PDF]

, 2001
We present a very simple expression and a Fortran code for the fast and precise calculation of three-dimensional harmonic-oscillator transformation brackets.
B.R. Barrett, Buck, D. Germanas, G.P. Kamuntavičius, Kamuntavičius, Moshinsky, Navratil, Neudachin, R.K. Kalinauskas, S. Mickevičius, Smirnov, Smirnov, Smirnov, Talmi, Trlifai, Vanagas   +15 more
core   +2 more sources

Antioxidant potency of mangosteen peel extract topical application in reversing reduced orthodontic brackets tensile strength after bleaching

Dental Journal, 2017
Background: Nowadays, cosmetic dentistry has become an ever-increasing requirement with interest in it growing over time. Bleaching is one of the popular cosmetic treatments that has been proven to diminish the tensile bond strength (TBS) of orthodontic ...
Ananto Ali Alhasyimi
doaj   +1 more source

Remineralization effect of diode laser, Nanoseal®, and Zamzam water on initial enamel carious lesions induced around orthodontic brackets

Journal of Nature and Science of Medicine, 2021
Purpose: This in vitro study was conducted to evaluate the remineralization effect of laser, Nanoseal®, and Zamzam water on initial enamel carious lesions of premolar induced around orthodontic brackets.
Sara Mohamed Hosny Elkabbany, Asmaa A Mosleh, Noha I Metwally   +2 more
doaj   +1 more source

Hessian chain bracketing

Journal of Combinatorics, 2023
Second derivatives of mathematical models for real-world phenomena are fundamental ingredients of a wide range of numerical simulation methods including parameter sensitivity analysis, uncertainty quantification, nonlinear optimization and model calibration. The evaluation of such Hessians often dominates the overall computational effort.
Naumann, Uwe, Burela, Shubhaditya
openaire   +2 more sources

Simulation of an Orthodontic System Using the Lingual Technique Based on the Finite Element Method

Diagnostics
Backgrounds/Objectives: The finite element method (FEM) is an advanced numerical technique that can be applied in orthodontics to study tooth movements, stresses, and deformations that occur during orthodontic treatment.
Abbas Hazem, Felicia Ileana Mărășescu, Mihaela Jana Țuculină, Dragoș Laurențiu Popa, Ionuț Daniel Geonea, Alexandru Iliescu, Petre Mărășescu, Ioan Ovidiu Gheorghe, Alma Roxana Pitru, Eugen Nicolae Tieranu, Ionela Teodora Dascălu   +10 more
doaj   +1 more source

An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)

Tomography, 2023
This study’s aim is to determine the accuracy and precision of the bracket slot height in MBT 0.022″ ceramic brackets. Five brackets from 11 different systems (n = 55) were scanned using micro-computed tomography (micro-CT).
Antonio Garrett, Maryam A. Alghilan, Simon Ash, Mohammed Awawdeh, Parmjit Singh   +4 more
doaj   +1 more source

Structural and Color Alterations of Teeth following Orthodontic Debonding: A Systematic Review

Journal of Functional Biomaterials
Aim: The objective of this study was to explore the effects of fixed orthodontic appliances on enamel structure by assessing microfractures, surface roughness, and alterations in color.
Francesco Inchingolo, Angelo Michele Inchingolo, Lilla Riccaldo, Roberta Morolla, Roberta Sardano, Daniela Di Venere, Andrea Palermo, Alessio Danilo Inchingolo, Gianna Dipalma, Massimo Corsalini   +9 more
doaj   +1 more source

One-Step Surface-Treatment Reagent (35% 3-O-Ethyl-l-ascorbic Acid Plus 50% Citric Acid Solution) Restores the Shear Bond Strength of Metal Brackets Bonded to Bleached Human Enamel: An In Vitro Study

Dentistry Journal, 2023
This study investigates how a new substance, composed of ethyl ascorbic acid and citric acid, affects the shear bond strength (SBS) of metal brackets when bonded to bleached teeth.
Pichanee Saeoweiang, Thanit Charoenrat, Chanat Aonbangkhen, Pattraporn Chobpradit, Paiboon Techalertpaisarn   +4 more
doaj   +1 more source