SETI wide receiver pulls in big bucks

SETI home: Internet Distributed Computing for SETI

Project SETI: Machine Recognition of Squiggles in SETI Signal Data

The singular question, are we alone?, has boggled scientists for centuries. The SETI Institute operates the Allen Telescope Array (ATA) to observe star systems for radio signals which may provide evidence of extraterrestrial intelligence. Signal events that maintain an intensity above an empirically-set threshold across all frequencies are converted into spectrogram images through a sliding-win...

: A Microwave Receiver for Wide - Bandwidth Signals

#34 Abstract Test Methods Fig. Product ArcliihTture of ISO 10303, Standard for the Exchange of Product Model Data (STEP). 44 October 1995 Hewlett-Packard Journal © Copr. 1949-1998 Hewlett-Packard Co. application protocols (AP) which use the underlying re sources in a specific application context, such as mechani cal design for discrete part manufacturing, and interpret the resource entities in ...

The poppy seed test for colovesical fistula: big bang, little bucks!

PURPOSE Diagnosis of a colovesical fistula is often challenging, and usually involves numerous invasive and expensive tests and procedures. The poppy seed test stands out as an exception to this rule. We evaluated the accuracy and cost-effectiveness of various established diagnostic tests used to evaluate a suspected colovesical fistula. MATERIALS AND METHODS We identified 20 prospectively en...

Endocytosis pulls Notch apart

N otch's neighbors are tearing it apart. On page 445, Nichols et al. show that endocytosis of a ligand on one cell pulls apart its Notch receptor on an adjacent cell, leaving behind an activation-susceptible receptor remnant. Dormant Notch on the cell surface must be cleaved into a free intra-cellular domain that can travel to the nucleus to activate gene expression. Three proteases are known t...