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— This paper investigates the effect of lowering the supply and threshold voltages on the energy efficiency of CMOS circuits. Using a first-order model of the energy and delay of a CMOS circuit, we show that lowering the supply and threshold voltage is generally advantageous, especially when the transistors are velocity saturated and the nodes have a high(More)
OBJECTIVES This pilot study was undertaken to assess the efficacy and safety of the alpha(1)-blocker alfuzosin 10mg once daily (OD), the PDE-5 inhibitor sildenafil 25mg OD, and the combination of both on lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH) and erectile dysfunction (ED). MATERIAL AND METHODS Men aged 50-76(More)
BACKGROUND AND PURPOSE Photoselective laser vaporization prostatectomy (PVP) with a high-power KTP laser is a hemostatic procedure for men with symptomatic benign prostatic hyperplasia (BPH). This study demonstrates the feasibility of PVP in men who are receiving anticoagulants. PATIENTS AND METHODS Men treated with PVP for symptomatic BPH between July(More)
Introduction Recently there has been a surge of interest in low-power devices and design techniques. While many papers have been published describing power-saving techniques for use in digital systems, trade-offs between the methods are rarely discussed. We address this issue by using an energy-delay metric to compare many of the proposed techniques. Using(More)
PURPOSE To report our experience with ureteral obstruction after injection of dextranomer/hyaluronic acid copolymer (Dx/Ha) to treat vesicoureteral reflux, and analyze its possible causes, management and outcome. MATERIALS AND METHODS Retrospective review of patients undergoing injection of Dx/Ha. The charts of patients with clinically relevant ureteral(More)
BACKGROUND Recent findings suggest that a specific haplotype, including five single nucleotide polymorphisms (SNPs) in the 3'-terminal region of the estrogen receptor alpha gene (ESR1), is associated with the risk for cryptorchidism, but results have been conflicting in different populations. The goal of this study was to further define the association(More)
PURPOSE Urinary extravasation with associated posterior urethral valves is uncommon and published articles are restricted to case reports. We propose a management algorithm on the basis of presentation of 18 boys with this condition. MATERIALS AND METHODS In this retrospective review we analyze the clinical features, diagnostic radiological imaging(More)
BACKGROUND AND PURPOSE The use of laparoscopy for pediatric pyeloplasty is increasing. We review our experience with our first 50 cases and describe the main technical points learned during this experience. PATIENTS AND METHODS We retrospectively reviewed the charts of all patients who underwent laparoscopic pyeloplasties (LP) over a 4-year period(More)
A systematic review was performed of publications relating to the results of urinary flow studies after hypospadias repair dating back to 1978, when what appears to be the first publication on this topic was found. The literature search was performed using the key words "hypospadias" combined with "urinary flow", "urine flow", "uroflow", "uroflowmetry", and(More)