Assessment of water quality using multivariate statistical techniques in the coastal region of Visakhapatnam, India.

The present study was intended to develop a Water Quality Index (WQI) for the coastal water of Visakhapatnam, India from multiple measured water quality parameters using different multivariate statistical techniques. Cluster analysis was used to classify the data set into three major groups based on similar water quality characteristics. Discriminant analysis was used to generate a discriminant function for developing a WQI.

Counseling issues in tubal sterilization.

Female sterilization is the number one contraceptive choice among women in the United States. Counseling issues include ensuring that the woman understands the permanence of the procedure and knowing the factors that correlate with future regret. The clinician should be aware of the cumulative failure rate of the procedure, which is reported to be about 1.