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Articles 194671 - 194674 of 194674
Full-Text Articles in Entire DC Network
Evaluation Of The Efficiency Of Passive Self-Ligating Versus Conventional Brackets In The Alignment Of Mandibular Crowded Teeth (A Comparative Study), Noha Ibrahim Abdelrahman Professor
Evaluation Of The Efficiency Of Passive Self-Ligating Versus Conventional Brackets In The Alignment Of Mandibular Crowded Teeth (A Comparative Study), Noha Ibrahim Abdelrahman Professor
Dentistry
Aim: Is to compare the efficiency of passive self-ligating versus conventional brackets in the alignment of crowded mandibular teeth. Materials and methods: A randomized clinical trial with Fifty participants visiting the clinic of the Orthodontic Department and fulfilling the eligibility criteria were enrolled in the study. Patients were randomly allocated to group A (Conventional brackets) or group B (Damon Q metal passive self-ligating brackets). The amount of mandibular crowding was assessed by Little’s irregularity index. Subjects in both groups were recalled for follow-up every four weeks till completion of alignment. Results: There was no significant difference in baseline irregularity in …
Assessment Of Prolonged Effect Of Repeated Botulinum Toxin-A Injection For Gummy Smile Correction, Islam Tarek Abbas Hassan Ahmed Prof, Noha Sabet, Namies Yousri, Marwa Abd El Latief
Assessment Of Prolonged Effect Of Repeated Botulinum Toxin-A Injection For Gummy Smile Correction, Islam Tarek Abbas Hassan Ahmed Prof, Noha Sabet, Namies Yousri, Marwa Abd El Latief
Dentistry
No abstract provided.
Photoexcited Charge Carrier Dynamics And Electronic Properties Of Two-Dimensional Mxene, Nb2ctx, Andrew M. Fitzgerald, Emily Sutherland, Tarek A. Elmelegy, Mary Qin Hassig, Julia Martin, Erika Colin-Ulloa, Ken Ngo, Ronald L. Grimm, Joshua R. Uzarski, Michel W. Barsoum, N. Aaron Deskins, Lyubov V. Titova, Kateryna Kushnir Friedman
Photoexcited Charge Carrier Dynamics And Electronic Properties Of Two-Dimensional Mxene, Nb2ctx, Andrew M. Fitzgerald, Emily Sutherland, Tarek A. Elmelegy, Mary Qin Hassig, Julia Martin, Erika Colin-Ulloa, Ken Ngo, Ronald L. Grimm, Joshua R. Uzarski, Michel W. Barsoum, N. Aaron Deskins, Lyubov V. Titova, Kateryna Kushnir Friedman
Mechanical Engineering
Two-dimensional, 2D, niobium carbide MXene, Nb2CTx, has attracted attention due to its extraordinarily high photothermal conversion efficiency that has applications ranging from medicine, for tumor ablation, to solar energy conversion. Here, we characterize its electronic properties and investigate the ultrafast dynamics of its photoexcitations with a goal of shedding light onto the origins of its unique properties. Through density functional theory, DFT, calculations, we find that Nb2CTx is metallic, with a small but finite density of states at the Fermi level for all experimentally relevant terminations of Nb2CTx that can be achieved using HF or molten salt etching of the …
Corrosion Characteristics Of Ti And Al2o3/Ti Thin Films Sputtered On 316lss, Iman El-Mahallawi, Hanan ِ Abd El-Fattah Dr., Lamiaa Mohamed Dr., Aliaa Abdelfattah
Corrosion Characteristics Of Ti And Al2o3/Ti Thin Films Sputtered On 316lss, Iman El-Mahallawi, Hanan ِ Abd El-Fattah Dr., Lamiaa Mohamed Dr., Aliaa Abdelfattah
Mechanical Engineering
In this work, two thin films (Ti and Al2O3/Ti) were deposited on 316LSS substrates by the physical vapor deposition (PVD) sputtering technique. Heat treatment was applied for thin films at 400 °C for 2 h. Thin films were divided into two groups, The First group cooled in the air (normalized), and the second cooled in the furnace (annealed). The electrochemical characteristics were investigated by potentiodynamic polarization (POT) and impedance spectroscopy (EIS) tests. The corrosion resistance (CRST) for all thin films before and after heat treatment was determined in 3.5% NaCl at room temperature (RT). Scanning electron microscope (SEM), and surface …