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Lateral saccadic latencies were determined in 18 right-handers and 18 left-handers. Within the right-handed group the mean latency was significantly shorter when looking from the left to the right (242.7 msec) than from right to left (265.0 msec), whereas no significant directional difference was found in the left-handed group. An age effect was also found(More)
This experiment determined whether reaction to a novel stimulus was diminished in a dose-dependent fashion following 8 consecutive days of d-amphetamine administration. Thirty-two male rats were injected with saline, 0.5, 2.5, or 5.0 mg/kg of d-amphetamine (each N = 8). On the ninth day, all animals received saline injections and were tested (a) in the(More)
OBJECTIVES We attempted to demonstrate that simultaneous dipyridamole administration and maximal subjective exercise in patients who are unable to achieve a good exercise level can improve the diagnostic efficacy of technetium-99m methoxy isobutyl isonitrile (99mTc-MIBI) myocardial single-photon emission computed tomography (SPECT). BACKGROUND The results(More)
OBJECTIVE To evaluate the role of myocardial perfusion SPET and radionuclide ventriculography in patients with hypertrophic cardiomyopathy (HC). METHODS Exercise myocardial perfusion SPET with 99mTc-tetrofosmin and radionuclide ventriculography were performed in a consecutive series of 101 patients (54 15 years, 50 women, 55 with dynamic obstruction)(More)
INTRODUCTION AND OBJECTIVES The aim of this study was to evaluate the diagnostic accuracy of myocardial SPET in patients with hypertrophic cardiomyopathy (HC). PATIENTS AND METHODS One hundred and six consecutive patients (aged 53 +/- 12 years, 50 women, 66 with dynamic obstruction) with an echocardiographic diagnosis of HC were studied with exercise-rest(More)
BACKGROUND Loop diuretics are beneficial in heart failure in the short term because they eliminate fluid retention, but in the long-term, they could adversely influence prognosis due to activation of neurohumoral mechanisms. AIMS To explore the changes induced by diuretic withdrawal in chronic nonadvanced heart failure. METHODS Diuretics were withdrawn(More)
The deployment of IPv6 enabled devices and networks brings some issues, which must be addressed by security administrators in order to guarantee at least the same level of security obtained nowadays with IPv4 and network-based security schemes, allowing at the same time all the IPv6 advantages and possibilities. The most important issues are the rediscovery(More)
BACKGROUND AND OBJECTIVE The purpose of this study was to characterize adult patients with hypertrophic cardiomyopathy (HCM), to compare their mortality with that of the general population and to establish a prognosis based on clinical and noninvasive techniques. PATIENTS AND METHOD One hundred nineteen consecutive patients (60 women, mean: 52 [12] years)(More)
This paper aims to describe the main outputs of the work carried out inside the IST Euro6IX project with particular reference to a new possible architectural Internet Exchange model. This model is based on the IPv6 hierarchical and aggregatable routing and addressing model permitting to enhance the IX functionalities by proposing to directly assign(More)
This paper presents the "auto-transition" concept which tries to ensure that any network device can obtain IPv6 connectivity at any time and whatever network is attached to, even if such network is connected to Internet only with IPv4. The algorithm looks for the best possible transition mechanism according to performance criteria as well as the scenario(More)