OBJECTIVES To assess the ability of baseline resonance frequency analysis (RFA) measurements to predict early implant failure in the posterior maxilla and to evaluate potential correlations between this measurement with Hounsfield units, bone quality variables, and implant dimension. MATERIALS AND METHODS This prospective randomized study involved 46 SLActive Straumann implants placed in the ...

Commercial coherent receivers utilize balanced photodetectors (PDs) with high single-port rejection ratio (SPRR) to mitigate the signal-signal beat interference (SSBI) due square-law detection process. As symbol rates of transponders are increased 100 Gbaud and beyond, maintaining a SPRR in cost-effective manner becomes more challenging. One potential approach for solving this problem is levera...

The Heterodyne Receiver for Origins (HERO) is the first detailed study of a heterodyne focal plane array receiver space applications. HERO gives Space Telescope capability to observe at very high spectral resolution (R = 107) over an unprecedentedly large far-infrared (FIR) wavelengths range (111 617 ?m) with sensitivity, simultaneous dual polarization and dual-frequency band operation. design ...

We introduce the task of random-receiver quantum communication, in which a sender transmits message to receiver chosen from list n spatially separated parties. The choice is unknown sender, but known by parties, who coordinate their actions exchanging classical messages. In normal conditions, communication requires noiseless channel each receivers. contrast, we show that can take place through ...

background and aims: to obtain maximum advantages from orthodontic fixed appliances and to achieve the desired final occlusion, correct bracket positioning is highly necessary. in order to measure and determine bracket’s height, diverse gauges have been used. the objective of the present study is to determine and compare bracket positioning accuracy by using height bracket positioning gauge (hb...

statement of the problem in recent decades, immediate implant placement has been proposed to eliminate undesirable consequences of conventional methods of delayed placement. in addition, because of the nature of this treatment method, a higher risk of complications such as infection and also higher failures rates may be expected purpose the aim of this study was to compare clinical outcomes of ...