The action of acetylcholine on atrioventricular nodal fibers has been studied with the aid of intracellular microelectrodes. It has been found that during total atrioventricular dissociation no block of conduction occurs at the junction between the A-V node and the bundle of His or within fibers of the atrium. Failure of impulse transmission occurs in fibers in the atrial margin of the A-V node...

We demonstrate reservoir computing with a physical system using a single autonomous Boolean logic element with time-delay feedback. The system generates a chaotic transient with a window of consistency lasting between 30 and 300 ns, which we show is sufficient for reservoir computing. We then characterize the dependence of computational performance on system parameters to find the best operatin...

background : sentinel lymph node biopsy is a technique used to identify the axillary node most likely to contain tumor cells that have metastasized from a primary carcinoma of the breast. this technique provides accurate staging with fewer complications than axillary dissection and may result in decreased costs. we designed the present study to determine the accuracy and success rate of a combi...

Colorectal carcinoma is the second biggest cancer responsible for mortality. Lung metastasis is the commonest, following the liver. It is not uncommon to perform pulmonary metastasectomy and identify mediastinal metastasis. Previous studies have identified incidental lymph node involvement following routine mediastinal lymph node clearance in 20-50% of cases. However, solitary intrathoracic lym...

W develop a numerically exact method for evaluating the time-dependent mean, variance, and higherorder moments of the number of entities in a Pht/Pht/ queueing system. We also develop a numerically exact method for evaluating the distribution function and moments of the virtual sojourn time for any time t; in our setting, the virtual sojourn time is equivalent to the service time for virtual en...

The mechanism of atrioventricular delay has been studied in isolated rabbit hearts. Multiple intracellular microelectrodes have been employed to obtain simultaneous records from single fibers of atrium, A-V node and His bundle. An appreciable delay in the transmission of excitation has been found only in the atrial portion of the A-V node. Action potentials recorded from single fibers in this a...

Process mining is an active field of research that primarily builds upon data mining and process model-driven analysis. Within the field, static data is typically used. The usage of dynamic and/or volatile data (i.e. real-time streaming data) is very limited. Current process mining techniques are in general not able to cope with challenges posed by real-time data. Hence new approaches that enab...

Multimedia traffic can typically tolerate some loss but has rigid delay constraints. A natural QoS requirement for a multimedia connection is a prescribed bound on the the fraction of traffic that exceeds an end–to–end delay limit. We propose and analyze a traffic management scheme which guarantees QoS to multimedia traffic while simultaneously allowing for a large connection–carrying capacity....

propose a new HOXC node architecture that is composed of MEMS-based WSSf\NBSS. The architecture minimizes the number of mirrors, which leads to lower node cost and higher reliability. Quantitative evaluations of the number of mirrors needed for HOXC and single-layer OXC architectures are given; the restriction of add/drop optical path ratio is considered. We sho~ that the number. of mirrors can...

  Introduction: There is a consensus in the literature that sentinel lymph node biopsy is the standard procedure for axillary staging in early stage (I and II) breast cancer patients. Usually during lymphoscintigraphy, the location of the sentinel lymph node is marked on the skin by an indelible ink. In this study we evaluated this issue in our patients. Methods: 40 ...