Solana nova vel minus cognita. XV

The early X - ray emission from V 382 Velorum ( = Nova Vel 1999 ) : An internal shock model

We present the results of ASCA and RXTE observations of the early X-ray emission from the classical nova V382 Velorum. Its ASCA spectrum was hard (kT∼10 keV) with a strong (10 cm) intrinsic absorption. In the subsequent RXTE data, the spectra became softer both due to a declining temperature and a diminishing column. We argue that this places the X-ray emission interior to the outermost ejecta ...

Terra Cognita and Semantic Sensor Networks

The French national mapping agency (IGN) produces several different but complementary geographic vector reference databases delivered in traditional GIS formats. However, linked data users have different expectations and habits, such as the need to browse an entire data catalogue in RDF using the ”follow-your-nose” navigation capacity from one graph to another. Besides, traditional GIS data for...

Xv Xvi

-Monetary policy operates in a different environment than it did a decade ago. Financial market innovations have eroded the distinctions among monetary assets, making the definition of money increasingly arbitrary. Deregulation of interest rates and banking activity is changing the behavior of the monetary aggregates, as banks pay interest on monetary assets and nonbanks offer monetary-like ass...

XV. Geriatrics

Xv. Neurophysiology*

Resting squid nerve membrane actively extrudes Na+ against a large concentration gradient, while another cation, K + , is concentrated passively within the cell by the Donnan equilibrium. During the passage of an impulse, large transient current flows across the membrane; some K + leaves, some Na + enters, but which ions carry the current at which instant, and how it is turned on and off cannot...