J A Montalbán

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INTRODUCTION Asterixis is an uncommon sign in structural central nervous system disorders. When asterixis is present, one cannot rule out the possibility of a focal lesion, but it is almost always due to a metabolic encephalopathy. PATIENTS AND METHODS In the last five years all patients with uni- or bilateral neurologic asterixis attended in our hospital(More)
Immunoreactive neurokinin A was measured in the cerebrospinal fluid of twelve patients with Parkinson's disease and eleven normal subjects, using a sensitive and precise extraction/concentration radioimmunoassay method. The mean value obtained in Parkinson's disease patients (13.2 +/- 4.6 pmol/l) was lower than that of the controls (17.4 +/- 5.9). The(More)
Context. We search for new variable B-type pulsators in the CoRoT data assembled primarily for planet detection, as part of CoRoT's Additional Programme. Aims. We aim to explore the properties of newly discovered B-type pulsators from the uninterrupted CoRoT space-based photometry and to compare them with known members of the β Cep and slowly pulsating B(More)
We carried out a prospective study of the prevalence and characteristics of anticardiolipin antibodies (aCL) and migraine on 103 consecutive patients with systemic lupus erythematosus (SLE) derived from three European referral university centers. We also included a control group of 58 patients with migraine not associated with SLE. We interviewed all(More)
In order to make asteroseismology a powerful tool to explore stellar interiors, different numerical codes should give the same oscillation frequencies for the same input physics. Any differences found when comparing the numerical values of the eigenfrequencies will be an important piece of information regarding the numerical structure of the code. The ESTA(More)
The T eff location of Pre-Main Sequence (PMS) evolutionary tracks depends on the treatment of over-adiabaticity (D'Antona & Mazzitelli 1994, 1998). Since the convection penetrates into the stellar atmosphere, also the treatment of convec-tion in the modeling of stellar atmospheres will affect the location of the Hayashi tracks. In this paper we present new(More)
Stellar interiors are inaccessible through direct observations. For this reason, helioseismologists made use of the Sun's acoustic oscillation modes to tune models of its structure. The quest to detect modes that probe the solar core has been ongoing for decades. We report the detection of mixed modes penetrating all the way to the core of an evolved star(More)
Clés is an evolution code recently developed to produce stellar models meeting the specific requirements of studies in asteroseismology. It offers the users a lot of choices in the input physics they want in their models and its versatility allows them to tailor the code to their needs and implement easily new features. We describe the features implemented(More)