357 research outputs found

    Wide QRS Tachycardia with Atrioventricular Dissociation and an HV Interval of 60 msec

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73193/1/j.1540-8167.1997.tb00814.x.pd

    Extending the limits of globule detection -- ISOPHOT Serendipity Survey Observations of interstellar clouds

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    A faint I170=4I_{\rm 170}=4 MJysr1^{-1} bipolar globule was discovered with the ISOPHOT 170 μ\mum Serendipity Survey (ISOSS). ISOSS J 20246+6541 is a cold (Td14.5T_{\rm d}\approx 14.5 K) FIR source without an IRAS pointsource counterpart. In the Digitized Sky Survey B band it is seen as a 3\arcmin size bipolar nebulosity with an average excess surface brightness of 26\approx 26 mag/\square \arcsec . The CO column density distribution determined by multi-isotopic, multi-level CO measurements with the IRAM-30m telescope agrees well with the optical appearance. An average hydrogen column density of 1021\approx 10^{21}cm2^{-2} was derived from both the FIR and CO data. Using a kinematic distance estimate of 400 pc the NLTE modelling of the CO, HCO+^+, and CS measurements gives a peak density of 104\approx 10^4cm3^{-3}. The multiwavelength data characterise ISOSS 20246+6541 as a representative of a class of globules which has not been discovered so far due to their small angular size and low 100μ\mu m brightness. A significant overabundance of 13^{13}CO is found X(13CO)150×X(C18O)X(^{13}CO) \ge 150\times X(C^{18}O). This is likely due to isotope selective chemical processes.Comment: 5 pages, 3 figure

    Radiofrequency Ablation of Idiopathic Left Anterior Fascicular Tachycardia

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71580/1/j.1540-8167.1995.tb00389.x.pd
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