Abstract: A system and technique provides fast acknowledgement and servicing of interrupt sources coupled to a high latency path of an intermediate node of a computer network. An external device coupled to the high latency path is provided with a separate interrupt signal for each type of interrupt supported by a processor of the intermediate node. Each interrupt signal is directly fed to an interrupt multiplexing device over a first low latency path. The multiplexing device is accessible to the processor through a second low latency path. The external device asserts an interrupt by “pulsing” an appropriate interrupt signal to the multiplexing device. The multiplexing device maintains a current counter for each interrupt signal and increments that counter every time an interrupt pulse is detected. In addition to the counter, the multiplexing device maintains a status bit for each interrupt.

Abstract: Disclosed are novel compounds and pharmaceutical formulations having antiviral activity. The disclosed compounds have the formula ##STR1## wherein one R.sup.2 is a hydrogen atom and the other R.sup.2 is the radical ##STR2## A is a straight chain alkylene group having 2 or 3 carbon atoms and each R.sup.3 and R.sup.4 is a hydrogen atom, and alkyl radical having 1 to 3 carbon atoms or each set of R.sup.3 and R.sup.4 taken together with the nitrogen atom to which they are attached is a saturated monocyclic heterocyclic group. Also included are the acid addition salts of these bases. These compounds may be prepared by various methods which are described.

Abstract: Novel 3,6-bis basic ketone derivatives of acenaphthene, their preparation and use for the prevention and inhibition of viral infections are disclosed.

Abstract: Novel 2,7-bis basic alkanol derivatives of xanthene and thioxanthene, their preparation and use for the prevention and inhibition of viral infections are disclosed.

Abstract: Disclosed are novel compounds and pharmaceutical formulations having antiviral activity. The disclosed compounds have the formula ##SPC1##Wherein one R.sup.2 is a hydrogen atom and the other R.sup.2 is the radical ##SPC2##A is a straight chain alkylene group having 2 or 3 carbon atoms and each R.sup.3 and R.sup.4 is a hydrogen atom, an alkyl radical having 1 to 3 carbon atoms or each set of R.sup.3 and R.sup.4 taken together with the nitrogen atom to which they are attached is a saturated monocyclic heterocyclic group. Also included are the acid addition salts of these bases. These compounds may be prepared by various methods which are described.

Abstract: Novel bis-basic ketones of xanthene and xanthen-9-one have antiviral activity when administered orally and parenterally. The compounds are represented by the following formula: ##SPC1##Wherein Z is oxygen or H.sub.2 ; each A is a straight or branched alkylene chain having from 1 to about 6 carbon atoms; and each Y isA. the group ##EQU1## wherein R.sup.1 and R.sup.2 are individually hydrogen, lower alkyl having from 1 to about 6 carbon atoms, cycloalkyl having from 3 to 6 carbon atoms, alkenyl of from 3 to 6 carbon atoms and having the vinyl unsaturation in other than the 1-position of the alkenyl group; orB. the group ##EQU2## WHEREIN N IS A WHOLE INTEGER FROM 4 TO 6, AND R.sup.3 is hydrogen, lower alkyl of from 1 to about 4 carbon atoms and can be linked to any one of the carbon atoms of the heterocyclic group; orC. the group ##EQU3## wherein X is oxygen or NR.sup.4, and R.sup.4 is hydrogen or lower alkyl of from 1 to about 4 carbon atoms;Or a pharmaceutically acceptable acid addition salt thereof.

Abstract: Novel triazolobenzocycloalkylthiadiazines, their preparation, and use as central nervous system antidepressants.