Summary Dracunculiasis is a dermo-epidermal filariasis that seems to persist in areas of Mali where potable water is scarce. From January to December of 2004 we carried out a study in the Gao region in an effort to determine the frequency of dracunculiasis and describe control efforts and their impact to date. To meet this objective we collected all documented cases of dracunculiasis during the...

The saucer-shaped depressions located at the river deltas of Poyang Lake are typical floodplain shallow sub-lakes subject to river-lake connection or isolation. The hydrological connectivity between these depressions and the main lake has a major influence on the hydrologic function and ecological integrity of the lake-floodplain and associated wetland habitats. This study explored the water le...

Thin-plate weirs are commonly used as measuring devices in flumes and channels, enabling an accurate discharge measurement with simple instruments. The calibration formulae of such devices rely upon some empirical coefficients and there is a need to obtain new accurate physical data to complement the existing evidence. In the present study, the discharge calibration of a large 901 V-notch thin ...