Results 71 to 80 of about 621,356 (276)

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian   +4 more
wiley   +1 more source

An In Vitro Study to Compare the Shear Bond Strength of Metal and Ceramic Brackets Using Conventional Acid Etch and Self-Etch Primer

open access: yesJournal of Pharmacy and Bioallied Sciences
AimIn this, in vitro study’s objective is to assess the shear bond strength (SBS) of metal and ceramic orthodontic brackets that have been adhered to enamel using a conventional acid etch/primer and self-etching primer (SEP) adhesive method.
Barthunia Neeral   +4 more
doaj   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

A study on the dimensional design of brackets of multi-tiered wooden pagodas in East Asia

open access: yesJournal of Asian Architecture and Building Engineering
Methods for dimensional design of brackets of multi-tiered wooden pagodas in East Asia are discussed. The research method for quantifying the brackets design of each wooden five-tiered pagoda by setting a V-value with an initial value equal to 1, and ...
Jiangling Ma, Tomo Inoue, Yida Sun
doaj   +1 more source

Comparison of frictional resistance of esthetic and semi-esthetic self-ligating brackets

open access: yesJournal of Pharmacy and Bioallied Sciences, 2015
Aim: The frictional resistance encountered during sliding mechanics has been well established in the orthodontic literature, and it consists of complex interactions between the bracket, archwire, and method of ligation the claim of reduced friction with ...
M S Kannan   +4 more
doaj   +1 more source

Realizations of observables in Hamiltonian systems with first class constraints

open access: yes, 2004
In a Hamiltonian system with first class constraints observables can be defined as elements of a quotient Poisson bracket algebra. In the gauge fixing method observables form a quotient Dirac bracket algebra.
A. V. BRATCHIKOV   +2 more
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky   +5 more
wiley   +1 more source

Clinical Tips for Rotation Correction in Self-ligating Brackets

open access: yesJournal of Indian Orthodontic Society
The use of self-ligating brackets is becoming increasingly popular in modern orthodontic practice. However, one of the major downsides of self-ligating brackets is the lack of rotational control, which is typically achieved using rotation wedges in ...
Jagruti Patil   +3 more
doaj   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

open access: yesAdvanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert   +6 more
wiley   +1 more source

On a Method of Calculation of Bracketed Structures

open access: yesJournal of Zosen Kiokai, 1958
On the calculation of bending moments of bracketed structures, various results of investigations based upon the consideration that bracketed beams were regarded as beams with variable sections have been published. The author applied the theory of the wedge in bracket parts, obtained various formulas on bracketed beams and showed the method of the ...
openaire   +2 more sources

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