Introducción: la gestante intervenida con prótesis valvular mecánica (PVM) tiene un mayor riesgo de complicaciones. Nos propusimos identificar y describir las principales complicaciones que se presentan en embarazada PVM, el carácter prevenible o no éstas su impacto desenlaces cardiovasculares, obstétricos fetales.
 Material métodos: estudio observacional analítico una cohorte prospectiva ...

Abstract Marine net primary production (NPP) is remarkably high given the typical vertical separation of 50–150 m between depth zones light and nutrient sufficiency, respectively. Here we present evidence that many autotrophs bridge this gap through downward upward migration, thereby facilitating biological pumping rates oceanic NPP. Our model suggests phytoplankton migration (PVM) fuels up to ...

Load distribution is an important topic for parallel applications in distributed systems. PVM supports programming of parallel applications on distributed systems. But it does not provide load distribution among processes of a parallel program. In this paper the adap-tive load distribution system ALDY is introduced. ALDY is a library of functions that provides basic mechanisms for load distribu...

1. The cause for the phenomenon of hemagglutination with heated PVM suspensions has been sought. 2. Evidence in wide variety indicates that the component responsible for hemagglutination is the virus particle itself. 3. The virus is capable of combining with a substance present in lung tissue of certain mammalian host species susceptible to infection by PVM. The occurrence of such combination a...

Evidence has been obtained which indicates that the lung tissues of mammalian species susceptible to infection with PVM contain a specific component which combines with the virus. The concentration of this tissue component appears to be directly proportional to the suceptibility of the species; in its absence infection with PVM cannot be established. The available evidence suggests that the pre...

REZUMAT ANTIMICROBIAL AGENTS IN PERIODONTAL DISEASE THERAPY: RATIONALE AND USE OF THE TRICLOSANPVM/MA COPOLYMER IN THE MANAGEMENT OF GINGIVITIS. DATA FROM A CONSENSUS REPORT. PART I. Stefan-Ioan Stratul, Doina Onisei, Darian Rusu Triclosan is currently one of the most researched antimicrobial agents for the oral cavity. A consensus meeting organized by Colgate-Palmolive Romania took place on 15...

The eld of values and pseudospectra are tools which yield insight into the spectral behavior of a matrix. For large sparse matrices, both sets can be eeciently computed using a Lanczos type method. Since both computations can be done in a natural parallel way, we have developed a package including Fortran and PVM routines. Experiments show that the PVM codes achieve excellent speed-ups and eeci...

This paper outlines key issues that must be addressed in order to allow PVM-based programs to make eeective use of resources within a wide area network-computing environment. Support mechanisms that allow unmodiied PVM programs to be used within the PUNCH network-computing environment are also described. The mechanisms were found to be easy to implement, and preliminary experiences indicate tha...

Urethane, given parenterally or orally to mice, increased the severity of PVM infection. Not only were the lesions more extensive but mice could be infected with smaller inocula of virus and the multiplication of virus in the lung was enhanced. There was atrophy of lymphoid tissues but no suppression was noted of antibody formation. No relation could be found between PVM infection and the devel...

Three-dimensional methods for quantifying pulmonary nodule volume at computed tomography (CT) and the effect of imaging variables were studied by using a realistic phantom. Two fixed-threshold methods, a partial-volume method (PVM) and a variable method, were used to calculate volumes of 40 plastic nodules (largest dimension, <5 mm: 20 nodules with solid attenuation and 20 with ground-glass att...