Results 51 to 60 of about 1,237,100 (203)

Adhesive cementation of zirconia posts to root dentin: evaluation of the mechanical cycling effect

Brazilian Oral Research, 2008
This study evaluated the effect of mechanical cycling on the bond strength of zirconia posts to root dentin. Thirty single-rooted human teeth were transversally sectioned to a length of 16 mm. The canal preparation was performed with zirconia post system
Graziela Ávila Galhano, Renata Marques de Melo, Carlos Augusto Pavanelli, Paolo Baldissara, Roberto Scotti, Luiz Felipe Valandro, Marco Antonio Bottino   +6 more
doaj   +1 more source

Adaptive Optics Observations of Exoplanets, Brown Dwarfs, & Binary Stars [PDF]

, 2011
The current direct observations of brown dwarfs and exoplanets have been obtained using instruments not specifically designed for overcoming the large contrast ratio between the host star and any wide-separation faint companions. However, we are about to
Baraffe, Beuzit, Liu, Macintosh, Sasha Hinkley, Sivaramakrishnan   +5 more
core   +2 more sources

Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post

Journal of Applied Oral Science, 2023
Objective The use of a fiber glass post (FGP) type and choice of FGP diameter to restore endodontically treated incisors without ferrule is controversial.
Maria Tereza Hordones RIBEIRO, Gabriella de OLIVEIRA, Helena Letícia Quirino de OLIVEIRA, Lilibeth Carola Leyton MENDOZA, Calebe de MELO, Thiago Silva PERES, Carlos José SOARES   +6 more
doaj   +1 more source

Short-term heat acclimation is effective and may be enhanced rather than impaired by dehydration [PDF]

, 2014
Most heat acclimation data are from regimes longer than 1 week, and acclimation advice is to prevent dehydration. Objectives: We hypothesized that (i) short-term (5-day) heat acclimation would substantially improve physiological strain and exercise ...
Armstrong, Armstrong, Ashenden, Bergeron, Borg, Brandenberger, Brandenberger, Brengelmann, Buono, Buono, Burge, Casa, Casa, Cheung, Convertino, Convertino, Costill, Cotter, Creasy, Dill, Engell, Epstein, Fellman, Fleming, Fortney, Francesconi, Gabai, Gagge, Garrett, Garrett, Garrett, Gisolfi, Gonzalez-Alonso, Gore, Goulet, Graichen, Greenleaf, Harrison, Harrison, Hopkins, Hopper, Horowitz, Horowitz, Hurwitz, Joyner, Judelson, Kay, Kee-Bum, Kenefick, Lorenzo, Maresh, Marshall, McClung, McConell, Merry, Morris, Moseley, Nadel, Nagashima, Nielsen, Njemini, Noakes, Nose, Oehler, Okazaki, Okazaki, Patterson, Patterson, Patterson, Racinais, Ramanathan, Sawka, Sawka, Sawka, Sawka, Schwimmer, Scoon, Senay, Shido, Shvartz, Strydom, Tetievsky, Turk, Wall, Weller, Witney, Wyndham   +86 more
core   +1 more source

Retention of Cast Posts Cemented with Two Commonly Used Conventional and Two Resin Cements and the Mode of Root Fracture Following Their Removal

Frontiers in Dentistry, 2021
Objectives: This study aimed to compare the retention of cast posts cemented with four types of cements and assess the mode of root fracture following their removal.
Azadeh Hesarkhani, Farnoush Fotovat, Fatemeh Saneian, Hosein Akbari, Hanif Allahbakhshi   +4 more
doaj  

SFADI: the Speckle-Free Angular Differential Imaging method [PDF]

, 2017
We present a new processing technique aimed at significantly improving the angular differential imaging method (ADI) in the context of high-contrast imaging of faint objects nearby bright stars in observations obtained with extreme adaptive optics (EXAO)
Antoniucci, Simone, Causi, Gianluca Li, Mattioli, Massimiliano, Pedichini, Fernando, Stangalini, Marco, Testa, Vincenzo   +5 more
core   +2 more sources

Astrophysical foregrounds and primordial tensor-to-scalar ratio constraints from CMB B-mode polarization observations

, 2012
We study the effects of astrophysical foregrounds on the ability of CMB B-mode polarization experiments to constrain the primordial tensor-to-scalar ratio, r.
Errard, Josquin, Stompor, Radek
core   +3 more sources

Co-axial wet-spinning in 3D Bioprinting: state of the art and future perspective of microfluidic integration [PDF]

, 2019
Nowadays, 3D bioprinting technologies are rapidly emerging in the field of tissue engineering and regenerative medicine as effective tools enabling the fabrication of advanced tissue constructs that can recapitulate in vitro organ/tissue functions ...
Barbetta, Andrea, Colosi, Cristina, Costantini, Marco, Święszkowski, Wojciech   +3 more
core   +1 more source

Design of a 2.4 GHz High-Performance Up-Conversion Mixer with Current Mirror Topology [PDF]

, 2012
In this paper, a low voltage low power up-conversion mixer, designed in a Chartered 0.18 μm RFCMOS technology, is proposed to realize the transmitter front-end in the frequency band of 2.4 GHz. The up-conversion mixer uses the current mirror topology and
Wan, Q. Z., Wang, C. H., Yu, F.
core   +1 more source

Overwrite fabrication and tuning of long period gratings [PDF]

, 2016
The central wavelengths of the resonance bands are critical aspect of the performance of long period gratings (LPGs) as sensors, particularly for devices designed to operate near the phase matching turning point (PMTP), where the sensitivity to ...
Barrington, James, James, Stephen W., Partridge, Matthew, Tatam, Ralph P.   +3 more
core   +1 more source