IT is now generally believed that the nature and extent of the periodic changes occurring in the ovary are controlled by the anterior lobe of the pituitary. The study of this relationship has been seriously handicapped, however, because the gonad-stimulating properties of extracts and other preparations can only be adequately studied in the hypophysectomised animal. Since it is practically impo...

Introducción: la ultrasonografía endoscópica (USE) ha demostrado ya su utilidad en la evaluación de las lesiones submucosas, en la estadificación del cáncer digestivo en general, y del linfoma gástrico tipo MALT en particular. El objetivo de este trabajo fue la estadificación por USE. Pacientes y método: veinticuatro enfermos (10 mujeres y 14 varones) con edad media de 56 años y con posible lin...

Heart failure (HF) patients appear to exhibit impaired thermoregulatory capacity during passive heating, as evidenced by diminished vascular conductance. Although some preliminary studies have described the thermoregulatory response to passive heating in HF, responses during exercise in the heat remain to be described. Therefore, the aim of this study was to compare thermoregulatory responses i...

de BCVC/CVC/1.000 días, mortalidad y hospitalización por BCVC) comparado a pacientes con sellado con heparina3. La resistencia bacteriana a G ha sido objetivada4, pero nuestra experiencia desde julio de 2003 en pacientes con CVC que ingresan en la unidad y se tratan con sellado de G con dosis más bajas (dato que consideramos fundamental por su influencia en la iatrogenia) que las administradas ...

Objetivo: estudiar la evolución a largo plazo de la histología hepática, en pacientes con hepatitis crónica por virus C (VHC) con respuesta sostenida (RS) al tratamiento antiviral y compararla con los pacientes no respondedores (NR) al mismo. Métodos: incluimos un total de 176 pacientes con hepatitis crónica por el VHC, 132 con RS y 44 NR. Todos ellos tenían una biopsia hepática basal y se prac...

Cardiovascular specialists encumbered with excessive intrusion into the patient-doctor relationship will likely agree with the conclusion of DiSesa et al1 that the coronary artery bypass grafting (CABG) mortality rate was not different between the 26 states with certificate-ofneed (CON) programs and the 24 states without CON regulation. Data from the Society of Thoracic Surgeons’ (STS) National...

The current study investigated the role playedby con£ictmonitoring in a lexical-decision task involving competing word representations, using event-related potentials. We extended the multiple read-outmodel (Grainger and Jacobs,1996), a connectionistmodel of word recognition, to quantify con£ict by means of Hop¢eld Energy, which is de¢ned as the sum of the products of all orthographic word node...

Raising beef cattle on concrete floors can negatively impact their welfare by increasing joint swelling and body lesions, as well as abnormalities in resting behavior and postural changes. We hypothesized that the addition of rubber mats to concrete pens would improve beef cattle welfare by improving performance, health, hygiene, and resting behavior. Forty-eight crossbred Angus steers were hou...

The Maximum a posteriori hypothesis is treated as the decoded truth in speech recognition. However, since the word recognition accuracy is not 100%, it is desirable to have an independent con dence measure on how good the maximum a posteriori hypothesis is relative to the spoken truth for some applications. E orts are in progress [1, 2, 3] to develop such con dence measures with the intent of a...

We examine two factors that help explain the prevalence of con‡ict in low-income countries: that adversaries cannot enforce long-term contracts in arms, and that open con‡ict alters the future strategic positions of the adversaries di¤erently than does peace. Using an in…nite horizon model, we show the conditions under which adversaries will not be able to sustain short-term contracts even thou...