PURPOSE There is evidence from theoretical models and animal studies that the biomechanical properties of the optic nerve head and the sclera play a role in the pathophysiology of glaucoma. There are, however, only a few data available that demonstrate such biomechanical alterations in vivo. In this study, the hypothesis was that patients with primary open-angle glaucoma (POAG) have an abnormal...

PURPOSE Alprostadil, a prostaglandin (PG)E(1) analogue and pentoxifylline, an alkylxanthine derivate, have been shown to exert vasodilatory effects in several vascular beds. The purpose of the present study was to investigate the effect of PGE(1) and pentoxifylline on the ocular circulation. METHODS A placebo-controlled, double-masked, three-way, crossover study was performed in 15 healthy ma...

The aim of this paper is to apply the Taylor expansion method solve first and second kinds Volterra integral equations with Abel kernel. This study focuses on two main arithmetics: FPA DSA. In order DSA, we use CESTAC CADNA library. Using method, can find optimal step approximation, error, some numerical instabilities. They are novelties DSA in comparison FPA. error analysis proved. Furthermore...

OBJECTIVES The purpose of this study was to determine whether the elevated levels of hemostatic markers in the early phase of myocardial infarction may serve as risk factors for subsequent cardiac mortality. BACKGROUND Increased plasma hemostatic markers were noted in acute myocardial infarction, indicating that the blood coagulation system is highly activated in those patients. However, ther...

PURPOSE Anomalies in the pulsatility of the eye have been associated with many types of ocular pathology. Estimation of ocular pulsatility is usually obtained by measuring the variation in the intraocular pressure using tonometry-based instruments. In this work, the authors present and demonstrate the applicability of a novel and noninvasive Fourier-domain optical coherence tomography (FD-OCT) ...

OBJECTIVES The ventricular phase angle, a parametric method applied to Fourier phase analysis (FPA) in radionuclide ventriculography, allows the quantitative analysis of ventricular contractile synchrony. However, FPA reproducibility using gated blood pool SPECT (GBPS) has not been fully evaluated. The present study evaluates whether by using GBPS, the reproducibility of FPA could be improved o...

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We compare a more complete characterization of the low temperature performance of a nominal 1.7um cut-off wavelength 1kx1k InGaAs (lattice-matched to an InP substrate) photodiode array against similar, 2kx2k HgCdTe imagers to assess the suitability of InGaAs FPA technology for scientific imaging applications. The data we present indicate that the low temperature performance of existing InGaAs d...

The kinetics of release of fibrinopeptide A (FPA) and B (FPB) by thrombin were investigated on unfractionated fibrinogen samples as a function of CaCl(2) concentration. A 50 mM Tris, 104 mM NaCl, pH 7.4 (TBS) buffer, to which 1 mM EDTA-Na(2) (TBE) or 2.5 (TBC2.5), 14 (TBC14), and 30 mM CaCl(2) (TBC30) was alternatively added, was employed. The % FPA versus time curves were fitted with single st...

a review of the evidence and an extensive consultation process, the WHO recommendations were endorsed by the FFPRHC.1 Different rules for pills containing 20 μg or 30 μg ethinylestradiol are appropriate to minimise intervention for the majority of women without risking contraceptive efficacy. The risk of pregnancy is greatest when pills are missed either side of the pill-free interval (PFI) and...