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Various organic acids, ultrasonic instruments, and lasers have been used to remove the smear layer from the surface of instrumented root canals. The purpose of this study was to investigate the effect of a mixture of a tetracycline isomer, an acid, and a detergent (MTAD) as a final rinse on the surface of instrumented root canals. Forty-eight extracted(More)
PURPOSE To characterize the severity and time course of rectal toxicity following transperineal prostate brachytherapy using prospectively recorded data, and to determine factors associated with toxicity. METHODS AND MATERIALS One hundred thirty-four patients with prostate cancer treated with transperineal brachytherapy from 1997 to 1999 had rectal(More)
PURPOSE Dose escalation has been shown beneficial in prostate cancer. Brachytherapy (BT) provides an opportunity for dose escalation beyond what can be safely delivered using only teletherapy methods. The purpose of this study was to determine cancer control and morbidity of external beam radiation therapy (EBRT) plus low-dose-rate (LDR) BT boost in(More)
STUDY DESIGN In vitro study of the effect of hemiepiphyseal implant on biomechanical properties of porcine thoracic motion segments. OBJECTIVE Determine whether implantation of a titanium clip-screw construct alters spine biomechanical properties. SUMMARY OF BACKGROUND DATA Growth modification is under investigation as a treatment of early adolescent(More)
Current noise guidelines use an energy-based noise metric to predict the risk of hearing loss, and thus ignore the effect of temporal characteristics of the noise. The practice is widely considered to underestimate the risk of a complex noise environment, where impulsive noises are embedded in a steady-state noise. A basic form for noise metrics is designed(More)
The delay threshold-based priority queueing (DTPQ) scheme has been shown useful for scheduling both real-time (RT) and non-real-time (NRT) service traffic in mobile broadband wireless access (MBWA) systems. The overall system capacity can be maximized subject to their QoS requirement by the DTPQ scheme, which takes the urgency of the RT service into account(More)
CONTEXT Exposure to secondhand smoke (SHS) has been reduced in the USA by banning smoking in public places. These restrictions have not had the same effect on children's exposure to SHS as adults suggesting that children are exposed to SHS in locations not covered by bans, such as private homes and cars. OBJECTIVES Assess exposure to SHS in the backseat(More)
— In this letter, we propose a novel method of implementing an opportunistic priority queuing scheme that supports both latency-sensitive real-time (RT) and best-effort non-real-time (NRT) service classes in mobile broadband wireless (MBWA) systems. It employs an adaptive delay threshold as a dynamic reference of prioritizing the urgent RT service users(More)
OBJECTIVES To test the effectiveness of a pressure ulcer (PU) prevention intervention featuring musical cues to remind all long-term care (LTC) staff (nursing and ancillary) to help every resident move or reposition every 2 hours. DESIGN Twelve-month paired-facility two-arm (with one-arm crossover) randomized intervention trial. SETTING Ten midwestern(More)
To formulate more accurate guidelines for musculoskeletal disorders (MSD) linked to Hand-Arm Vibration Syndrome (HAVS), delineation of the response of bone tissue under different frequencies and duration of vibration needs elucidation. Rat-tails were vibrated at 125 Hz (9 rats) and 250 Hz (9 rats), at 49 m/s(2), for 1D (6 rats), 5D (6 rats) and 20D (6(More)