The catchment, or catchment area, is the area associated with a segment of a drainage network. Surface runoff in a catchment flows into the associated network segment. Catchment area is commonly used for estimating watershed parameters, such as upstream drainage area, flood frequency, or surface-water flow. Hydrologic analyses require relatively accurate catchment area estimates to furnish subs...

Chronic angle-closure glaucoma is a major cause of blindness, particularly in Asia. The goals of management are to prevent both progression of anatomic angle-closure and progression of glaucomatous optic neuropathy, the latter by controlling intraocular pressure. Laser iridotomy to eliminate pupillary block is the definitive initial treatment and laser peripheral iridoplasty is the second-line ...

The foreign bodies of the esophagus are observed at any age. They are more common in children. The nature of foreign body depend on eating habits or age of patient. The complications are rare and are related either to the type of these foreign bodies or the mechanism of extraction. The extraluminal migration of foreign body through the oesophagus is known to cause bleeding and perforation These...

Mathematical models have been widely used to quantify hydrological processes for various practical purposes. These depend on geomorphological attributes which are derived from relief information represented by Digital Elevation Models (DEM). The objective of this study was evaluate the influence sources (ASTER, SRTM-30, SRTM-90, and TOPO) over characterization five Brazilian watersheds. Geoproc...

background: historically open surgical drainage has been the treatment of choice for pyogenic liver abscess. the records of 54 patients with pyogenic liver abscess were reviewed to determine whether earlier diagnosis with current imaging tests and definitive treatment with antibiotics and aspiration drainage was an effective alternative to surgery. methods: the clinical features, laboratory tes...