Atrial fibrillation (AF) is the most common type of arrhythmia, affecting more than 2.2 million Americans. One effective treatment is cardiac ablation, which shows a high rate of success in treating paroxysmal AF. As a prevailing modality for this treatment, catheter ablation using radiofrequency has been effective, but comes with measurable morbidity and significant costs and time associated w...

An small deep-placement fertilizer applicator (SDFA), to realize hill fertilization application and mark location with lime, was developed. It’s unique structure working principle were detailed. Orthogonal tests conducted by the software EDEM virtual simulation in order get parameters of applicator. The rotational torque much higher than resistant after optimization design. Field testing across...

Background and purposeTo investigate the accuracy of dwell position detection with a combined electromagnetic tracking (EMT) brachytherapy (BT) system for treatment verification, by quantifying positional errors due to EM field interference in typical pelvic BT clinical settings.Materials methodsDedicated prostate cervix phantoms were imaged CT. For phantom, Utrecht applicator + interstitial ca...

The Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) has been used to observe 78 of the IRAS point sources identified by Bronfman et al. (1996) as likely ultracompact HII regions. Results for the CO J = 4 → 3 line at 461.041GHz are presented. The 74 sources detected are bright and in many cases compact, making them potentially suitable as pointing calibrators for single dish su...

It is indeed difficult to say that analogue controllers are definitely better than digital controllers. The point is, they both work. Analogue controllers are based on mechanical parts that cause changes to the process via the final control element. Again like final control elements, these moving parts are subjected to wear and tear over time and that causes the response of the process to be so...

introduction pterygium is a wing-shaped, vascular, fleshy growth that originates from the conjunctiva and can spread into the corneal limbus and beyond. beta irradiation after bare sclera surgery of primary pterygium is a simple, effective, and safe treatment, which reduces the risk of local recurrence. materials and methods dosimetric components of strontium-90 (90sr), phosphorous-32 (32p), an...

Pointing is a foundational building block of human communication, but does it take the same form from one culture to the next? Index finger pointing is often assumed to be universally privileged. Use of non-manual pointing morphologies has been attested around the world but it has never been clear how central these variants are in the communities in which they occur. Using a novel referential c...

The histologic effects of a contact ultrasound applicator were compared with those of the immersion applicator that is currently used clinically for the treatment of glaucoma. The applicator coupling cone uses a distensible rubber membrane that can be inflated to control stand-off distance relative to the surface of the eye. This feature allows the focal point of the therapeutic beam to be plac...