Methodology of Economical Epidemiology.

Molecular epidemiology of tuberculosis: methodology and applications.

The resurgence of tuberculosis around the world has renewed interest in understanding the epidemiology and pathogenesis of this disease. A revolutionary advance in the field of tuberculosis research has been the development of molecular techniques that permit identification and tracking of individual strains of Mycobacterium tuberculosis. With these techniques, molecular epidemiology has been e...

Methodology of genetic study in the epidemiology of leprosy.

Epidemiology of Human Longevity: The Search for Appropriate Methodology

In contrast to the remarkable progress in genetics of aging of such animal models as yeast, nematodes, and Drosophila, little is known about mechanisms that control human longevity. The main obstacle in human studies is that the opportunities for direct experiments with humans are limited and therefore data collection through observations, i.e., epidemiological methods, are particularly importa...

Rapid and economical identification and antimicrobial susceptibility test methodology for urinary tract pathogens.

To decrease the time and cost of processing urine cultures, we devised a critical pathway to identify and perform antibiotic susceptibility tests on commonly isolated microbial pathogens within 6 h of growth detection. The strategy was based on eliminating expensive kits and automated procedures when not required. A pathway utilizing a statistical matrix and three rapid biochemical tests requir...

Economical Numbers

A number n is said to be economical if the prime power factori-sation of n can be written with no more digits than n itself. We show that under a plausible hypothesis, related to the twin prime conjecture, there are arbitrarily long sequences of consecutive economial numbers, and exhibit such a sequence of length 9.