OBJECTIVES Pulmonary arterial hypertension (PAH) is associated with poor outcome after mitral valve replacement (MVR). We proposed to evaluate the effect of valve prosthesis patient mismatch (PPM) on pulmonary arterial (PA) pressure following MVR. METHODS Five hundred patients who have undergone MVR were studied retrospectively. Postoperative PA systolic pressure (PASP) measured 6 months post...

The concentrations of eight metals were determined by a nondestructive neutron activation technique for eleven species of fish and shellfish. The marine organisms were collected from ocean dump sites off New York City, off New Haven, Connecticut, and off Delaware Bay. Antimony was not detected in most of the organisms examined in thid study; the detection limit was about 0.02 to 0.05 ppm. Antim...

PURPOSE To assess whether a fluoride dose response could be detected with a relatively small sample size in a short duration using a novel randomized, double-blind study design. METHODS Subjects (N = 644, with approximately 215 per group) with a mean age of 10.4 years old (9-12 years old) used a placebo dentifrice, an 1100 ppm F dentifrice or a 2800 ppm F dentifrice for the first 9 months of ...

Intelligent methods have been applied to many fields for a long time. Recently, Visible Light Communication (VLC) systems widely include learning and classification models improve their performances. The of L-Pulse Position Modulation (L-PPM) formats is crucial VLC since the modulation order L very effective providing energy efficiency increasing transmission capacity. In this paper, therefore,...

This study evaluated the impact of different concentrations of glyphosate (Rondup(®)) on planktonic and biofilm growth of P. aeruginosa. Aerobic and anaerobic cultures of P. aeruginosa ATCC(®)15442 inoculated in MHB + glyphosate (0.845 ppm, 1.690 ppm, 8.45 ppm, 16.90 ppm, 84.50 ppm, 169 ppm, 845 ppm, and 1690 ppm) and cultured in normoxia and anoxia, following their OD(560nm) every hour for 24 ...

2014 We have carried out the first observation of spiral spin or chirality domains, in a single crystal of terbium in its helimagnetic phase, by polarized neutron diffraction topography. The different domain structures observed are a function of the thermal history of the sample. When the sample is warmed from the ferromagnetic phase one observes stripe domains with long axis perpendicular to t...

We give a short proof of Urabe’s criteria for the isochronicity of periodical solutions of the equation ẍ+ g(x) = 0. We show that apart from the harmonic oscillator there exists a large family of isochronous potentials which must be all non-polynomial and not symmetric (even function of the coordinate x). PACS numbers: 46.10.+z, 95.10.Ce AMS classification scheme numbers: 34C05 Published in Jou...