The occurrence of atrial tachycardias (AT) is a direct function of the volume of atrial tissue ablated in the patients with atrial fibrillation (AF). Thus, the incidence of AT is highest in persistent AF patients undergoing stepwise ablation using the strategic combination of pulmonary vein isolation, electrogram based ablation and left atrial linear ablation. Using deductive mapping strategy, ...

Quantifying Rooftop Solar Photovoltaic Potential for Regional Renewable Energy Policy L.K. Wiginton, H. T. Nguyen, J.M. Pearce Abstract Solar photovoltaic (PV) technology has matured to become a technically viable largescale source of sustainable energy. Understanding the rooftop PV potential is critical for utility planning, accommodating grid capacity, deploying financing schemes and formulat...

BACKGROUND Isolation of the pulmonary veins (PVs) for the treatment of atrial fibrillation (AF) is often supplemented with linear lesions within the left atrium (LA). However, there are conflicting data on the effects of creating a roof line (RL) joining the superior PVs in paroxysmal atrial fibrillation (PAF). METHODS AND RESULTS A cohort of 120 patients with drug-refractory PAF referred for...

The objective of this research was to use a three-dimensional (3D) analysis method to evaluate "system effects" in light-frame roof truss assemblies. The goal of this study was to develop an improved and practical design method for 3D roof truss assemblies used in residential construction. A truss plate manufacturer (TPM) design software was used to layout assemblies and to design individual tr...

Surgical arrhythmia ablation techniques can achieve epicardial transmural lesions but require a combination of surgical access and endoscopic approaches. We sought to adapt a surgical ablation catheter to a percutaneous subxyphoid approach. The EpiSense nContact (Epi) is a surgical ablation catheter that contains a 3-cm ablation coil, an open irrigation system, and a suction mechanism to mainta...

Youth gangs are on the rise. Today they threaten virtually every major city, many small communities, and even rural areas. The Office of Juvenile Justice and Delinquency Prevention (OJJDP) is committed to helping communities overcome this problem, and an essential first step is understanding the factors that contribute to the growth of youth gangs and the relationship of gang membership to deli...

Green roofs can mitigate urban rooftop stormwater runoff. However, the lack of accurate, physically-based performance assessment and design models has hindered their wide application. Most hydrologic or hydraulic models have no direct connection to the physical properties of green roof components such as media type/depth, drainage depth, etc. In an effort to assist design engineers, a simplifie...

there are several courtyards of historical buildings in iran that have changed their original function because of reuse and have adopted for physical adjustments of the renovation projects. usually they are covered by lightweight roofsand have been used as religious spaces, praying or audience halls, restaurants, exhibitions rooms, etc. unfortunately most of these lightweight roofs have inappro...

In February 2006, an outbreak of Legionnaires' disease (LD) was identified in Beachlands, a small, isolated east Auckland suburb. It was investigated through case finding, a case-control study, sampling potential sources of infection and by molecular typing (using sequence-based typing (SBT) of all Legionella pneumophila serogroup 1 (Lp1) isolates). Lp1 was isolated from the respiratory tract o...