OBJECTIVES The purpose of this study was to determine if burst atrial pacing would have an effect on terminating atrial fibrillation. BACKGROUND We hypothesized that frequency domain analysis of a filtered wide bipolar atrial electrogram describes the global organization of atrial fibrillation (AF) and should vary over time. Timing burst pacing to periods of high organization of AF should pro...

We present observations of GRB 060124, the first event for which both the prompt and the afterglow emission could be observed simultaneously and in their entirety by the three Swift instruments. Indeed, Swift-BAT triggered on a precursor ∼ 570 s before the main burst peak, and this allowed Swift to repoint the narrow field instruments to the burst position ∼ 350 s before the main burst occurred...

the paper presents lower and upper bounds on the number of parity check digits required for a linear code that detects solid bursts of length $b$ or less and simultaneously any $e$ or less random errors. an example of such a code is also provided. further, codes capable of detecting and simultaneously correcting such errors have also been dealt with.

background adenylate cyclase toxin (cyaa) is an important virulence factor of bordetella pertussis, the causative agent of whooping cough, and a potential component of acellular pertussis vaccine. objectives in the present study the impact of invasive cyaa on oxidative activities of phagocytes was compared with the other form of this molecule to investigate the activity of different parts of mo...

In the process of coal mine production, rock burst accidents near faults occur frequently. order to further reveal induced mechanism fault slip burst, a numerical simulation method for dynamic calculation under influence mining is proposed, and law response characteristics stope are studied. The study shows that with working face getting closer fault, activity number high-energy microseismic ev...

Using three parametrizations of the gamma ray burst count data comparison is made to cosmological source models. While simple models can fit 〈V/Vmax〉 and faint end slope constraints, the addition of a logarithmic count range variable describing the curvature of the counts shows that models with no evolution or evolution power law in redshift with index less than 10 fail to satisfy simultaneousl...

We discuss the prompt emission of the γ-ray burst (GRB) 990510 and its subsequent X-ray afterglow from 8.0 to 44.3 hrs after the prompt emission, using observations with the Gamma-ray Burst Monitor and Narrow Field Instruments on BeppoSAX. In the 40–700 keV band, GRB990510 had a fluence of ∼1.9×10−5 erg cm−2, whereas it reached a peak flux of ∼2.4× 10−6 erg cm−2 s−1. The X-ray afterglow decay l...

Using three parametrizations of the gamma ray burst count data comparison is made to cosmological source models. While simple models can fit 〈V/Vmax〉 and faint end slope constraints, the addition of a logarithmic count range variable describing the curvature of the counts shows that models with no evolution or evolution power law in redshift with index less than 10 fail to satisfy simultaneousl...

the date of receipt and acceptance should be inserted later Abstract. On December 19, 2002, during the Performance and Verification Phase of INTEGRAL, a Gamma-Ray Burst (GRB) has been detected and localized in real time with the INTEGRAL Burst Alert System (IBAS). Here we present the results obtained with the IBIS and SPI instruments. The burst had a time profile with a single peak lasting abou...

The well-known approach of Bose, Ray-Chaudhuri and Hocquenghem and its generalization by Hartmann and Tzeng are lower bounds on the minimum distance of simple-root cyclic codes. We generalize these two bounds to the case of repeated-root cyclic codes and present a syndrome-based burst error decoding algorithm with guaranteed decoding radius based on an associated folded cyclic code. Furthermore...