Recently nebulised antibiotics (gentamicin and carbenicillin) have been used successfully to treat respiratory tract infection in patients with cystic fibrosis. No information exists, however, on the choice of nebuliser or the ideal mode of operation with antibiotic solutions, which are often viscous. The aerosol output, droplet size, and nebulisation time were assessed for four common brands o...

We have undertaken studies on bovine liver argininosuccinase (L-argininosuccinate arginine-lyase, EC 4.3.2.1) with the active site-directed reagent bromo[U-14C]mesaconic acid, an analogue of fumaric acid. Reactivity, measured by enzyme inactivation, followed pseudo-first-order kinetics, and the rate increased with reagent concentration. Argininosuccinate completely protected the enzyme against ...

Cleland, Thomas A. and Allen I. Selverston. Dopaminergic modto iontophoretically applied glutamate in situ, presumably ulation of inhibitory glutamate receptors in the lobster stomatogasmediated solely by ‘‘postsynaptic’’ input resistance and tric ganglion. J. Neurophysiol. 78: 3450–3452, 1997. The intrinsic IGluR modulation, are also diverse and specific to particular rhythmicity of the spiny ...

ABSTRACT PURPOSE To assess the usefulness of HRCT in diagnosis and follow up of pulmonary involvement in systemic sclerosis. MATERIALS and METHODS A total of 159 patients with systemic sclerosis, without overlap features, were studied. Sequential HRCT evaluation was realized in 138 patients. Semiquantification of HRCT findings was based on the grading systems introduced by Wells et al and Warri...

Unprecedented, non-stop environmental turbulence accompanied by a progressively accelerated rate of change causes deep concern for businesses today. Almost half a century ago, Emery and Trist (1965) recognized the dependency of organizations on their environments and identified the increasing complexity and pace of environmental change. Since that time, Clarke (1994) and others (see below) repe...

Motile activities such as chemotaxis and phagocytosis, which occur in Dictyostelium cells lacking myosin II, may be dependent upon myosin I. To begin to explore this possibility, we have engineered a disruption of the Dictyostelium myosin I heavy chain (DMIHC) gene described recently (Jung, G., C. L. Saxe III, A. R. Kimmel, and J. A. Hammer III. 1989. Proc. Natl. Acad. Sci. USA. 86:6186-6190). ...

in the present work a two dimensional numerical investigation of steam flows in a turbine blade passage is performed. a finite volume approach has been used and the pressure–velocity coupling is resolved using the simple algorithm. the purpose of this paper is to find that one of the used turbulent models is better for this kind of studies. a structured mesh arrangement with boundary layer mesh...

in this research between 3-dimensional and axisymmetric modeling for movement of nano-particles in passing through a aerodynamic lens, and also between these models and famous model of wang & liu was compared. for this purpose, output of nano-particles penetration, divergence angel, and nano-particle velocity with wang & liu model was compared. geometrical model used for aerodynamic lens compar...

The 2dF Galaxy Redshift Survey is the first to measure more than 100,000 redshifts. This allows precise measurements of many of the key statistical measures of galaxy clustering, in particular redshift-space distortions and the large-scale power spectrum. This paper presents the current 2dFGRS results in these areas. Redshiftspace distortions are detected with a high degree of significance, con...