Results 41 to 50 of about 32,805 (155)

The generalization and proof of Bertrand's postulate

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
The purpose of this paper is to show that for ...
George Giordano
doaj   +1 more source

Shear bond strength of three self-adhesive resin cements to dentin

open access: yesIndian Journal of Dental Research, 2012
Context: The result of the studies concerning the bonding of self-adhesive resin cements to dentin is controversial. Aims: To assess in vitro shear bond strength (SBS) of three self-adhesive dual-cured resin cements to dentin compared to a currently ...
Asefzadeh Farrokh   +3 more
doaj   +1 more source

Analysis of Subgroup Data in Clinical Trials [PDF]

open access: yes, 2009
This conference abstract was published in the Proceedings of the Sixteenth Annual Biopharmaceutical Applied Statistics ...
Peace, Karl E., Tsai, Kao-Tai
core   +1 more source

Prediction Cell Parameter of A2MX6 Cubic Perovskites

open access: yesRevue des Énergies Renouvelables
A2MX6 perovskites materials have shown impressive advances in the last 50 years due on their photovoltaic application, made them one of the most-promising technologies for next-generation solar cells.
Hadda Krarcha, Abdelhak Ferroudj
doaj   +1 more source

Voice, swallowing, and quality of life after management of laryngeal cancer with different treatment modalities

open access: yesThe Egyptian Journal of Otolaryngology, 2016
En Abstract Background Laryngeal cancer is the most common malignant tumor of the upper aerodigestive tract. Surgical treatment of advanced laryngeal cancer often requires a total laryngectomy (TL), resulting in a permanent tracheostomy and potential ...
Medhat M. H. Mansour   +4 more
doaj   +1 more source

ACE and ACTN3 Gene Polymorphisms and Genetic Traits of Rowing Athletes in the Northern Han Chinese Population

open access: yesFrontiers in Genetics, 2021
This investigation aimed to explore the effects of ACE I/D and ACTN3 R577X gene polymorphisms on specific quantitative variables, including height, weight, arm span, biacromial breadth, forced vital capacity (FVC), FVC/weight, maximal oxygen uptake ...
Qi Wei, Qi Wei
doaj   +1 more source

SAND: an AND-RX Feistel lightweight block cipher supporting S-box-based security evaluations [PDF]

open access: yes, 2021
We revisit designing AND-RX block ciphers, that is, the designs assembled with the most fundamental binary operations---AND, Rotation and XOR operations and do not rely on existing units.
Chun Guo   +8 more
core  

Effect of luting space and cements on retention of implant supported crowns fabricated by laser sintering

open access: yesSelcuk Dental Journal, 2017
Background: The aim of this study was to evaluate the retention strength of five different cements used for implant supported crowns with two cement gap values.Methods: Standard titanium abutments were scanned by means of a 3D digital laser scanner.
Özgün Yusuf Özyılmaz
doaj   +1 more source

Experimental osteoarthritis in rabbits: lesion progression

open access: yesPesquisa Veterinária Brasileira, 2013
The aim of this study was to evaluate the progression of lesions in different stages of osteoarthritis (OA) experimental by radiography (RX), computed tomography (CT), macroscopic and histopathology, linking these different diagnostic methods, helped to ...
Wilma N.S. Campos   +7 more
doaj   +1 more source

Oscillation for a Class of Second-Order Emden-Fowler Delay Dynamic Equations on Time Scales

open access: yesAdvances in Difference Equations, 2010
By means of Riccati transformation technique, we establish some new oscillation criteria for the second-order Emden-Fowler delay dynamic equations (rxΔ)Δ(t)+p(t)xγ(τ(t))=0 on a time scale 𝕋; here γ is a ...
Chao Zhang   +3 more
doaj   +1 more source

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