Sanitation of Watersheds

Ultrametric Watersheds

We study hierachical segmentation in the framework of edgeweighted graphs. We define ultrametric watersheds as topological watersheds null on the minima. We prove that there exists a bijection between the set of ultrametric watersheds and the set of hierarchical edgesegmentations.

Assessment of sanitation conditions by qualitative sanitation measurement.

Survey of sanitation conditions by qualitative sanitation measurement were carried out in three districts, Chachoengsao Province, Thailand. The sanitation of each household was assessed in terms of positive stool examination and scores of seven main sanitary activities which were used to classify each household's sanitation as hygienic or non-hygienic. Stool collections were made from each hous...

Ecological Sanitation

Sanitation of Bombay

The Horrors of Sanitation

WE are so accustomed to regard the sanitary engineer as a bulwark against infectious diseases that we are apt to be shocked when he is portrayed as an insufferable nuisance. In a lecture recently delivered in Denmark, Dr. M. Hindhede, the distinguished vegetarian, gave an entertaining account of visits he had lately paid to garden cities in England and Germany. The villain of the piece in Engla...