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BACKGROUND The prognostic value of natriuretic peptides in heart failure (HF) is well established. The objective of this study was to evaluate the role of NT-proBNP in predicting outcome in decompensated HF. METHODS Patients admitted with decompensated HF to our Internal Medicine Department between November 2002 and April 2004 with at least two(More)
This paper presents data on proton displacement damage on light-emitting diodes (LEDs) and infrared emitting diodes (IREDs) of different technologies between 650 and 950 nm. 160 devices of a variety of 28 different COTS emitters were irradiated. Most irradiations were carried out with 52 MeV protons. Two components were also studied with 30 and 60 MeV(More)
The time required to image large samples is an important limiting factor in SPM-based systems. In multiprobe setups, especially when working with biological samples, this drawback can make impossible to conduct certain experiments. In this work, we present a feedfordward controller based on bang-bang and adaptive controls. The controls are based in the(More)
Components off the shelf (cots) photodiodes suitable for OWLS were irradiated with ~10 to ~60 MeV protons and up to fluences of ~2.5-10<sup>12</sup> p/cm<sup>2</sup>. Electrical and optoelectronic parameters were measured during the test (I-V curves, dark current, responsivity and ideal diode factor). Results on degradation and post-annealing are reported.(More)
We describe a micromachined optical fiber current sensor. The sensing element consists of a squared silicon membrane (8 mm long and 20 microm thick) that has a cylindrical permanent magnet (NdFeB alloy, 3-mm diameter, 1.5 mm high) fixed on its central region. This structure allows the permanent magnet to vibrate in the presence of the magnetic field(More)
The replacement of single-crystal compounds by polycrystalline compounds in some magneto-optical devices is proposed. For this purpose a characterized polycrystalline, Cd(0.55)Mn(0.45) Te, has been manufactured. Its Verdet constant and cutoff wavelength are identical to those of single crystals of the same composition. Optical transmission is lower in(More)
A focused-ion-beam-assisted technique intended for ultrasmall, hard-magnet fabrication has been developed. By means of ion-beam-induced milling and deposition, reduced-size NdFeB magnets were extracted from a macroscopic quarry and bonded to the surface of a thin-film bulk acoustic resonator (FBAR). Electrical characterization of the FBAR before and after(More)