This paper considers various parallelization schemes and applies them to concurrent computation of algebraic fractals on IBM SP3 and SGI Onyx 3400 systems. We adapt the time complexity bounds of parallel Monte Carlo methods to predict the execution time behavior of these schemes. Nous étudions plusieurs méthodes de parallélisation appliquées au calcul simultané de plusieurs objets fractals algé...

We discuss aspects of Euclidean geometry including isometries of the plane, affine tranformations in the plane and symmetry groups. We then explore similar concepts in the sphere and projective space, and explore elliptic and hyperbolic geometry.

This randomized, double-blind, placebo-controlled study was designed to explore the effects of exposure to very high altitude hypoxia on vascular wall properties and to clarify the role of renin-angiotensin-aldosterone system inhibition on these vascular changes. Forty-seven healthy subjects were included in this study: 22 randomized to telmisartan (age, 40.3±10.8 years; 7 women) and 25 to plac...

The Raman spectra of aqueous ammonia solutions have been obtained between -40 and 25 degrees C. The Raman spectrum of neat water was also obtained at 25 degrees C and is characterized by two broad peaks observed at 3200 and 3400 cm(-1). The spectrum due to water is subtracted to determine the NH(3) spectrum at all temperatures. In ammonia-water solutions, the spectrum shows three features at me...

A 17-year-old boy presented with intermittent cough, fatigue, and fever. Computed tomography showed a mediastinal mass and hypodense splenic lesions. Biopsy of the mediastinal mass revealed numerous follicles with atrophic germinal centers and “onion skin”-like expanded mantles penetrated by hyalinized vessels, morphologically consistent with hyaline vascular Castleman disease (CD) (panel A, he...

Page 1 Title: Representation of speech categories in the primate auditory cortex 1 2 Authors and author addresses: 3 Joji Tsunada, Jung Hoon Lee, and Yale E. Cohen 3 4 5 Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania School 6 of Medicine, 3400 Spruce 5 Ravdin, Philadelphia, PA 19104 7 Department of Neuroscience 8 Department of Bioenegineering 9 10 Running h...

In order to determine the normal values of arterial blood gases in the umbilical artery of term infants at 3400 m altitude, a cross-sectional study was conducted. It was performed in the umbilical artery blood of 300 term infants, with an adequate gestational age and whose birth took place between January 2010 and December 2011 at the Essalud National Hospital Adolfo Guevara Velazco (Cusco, Per...