Surveys are not simple: beware of the pitfalls.

Surveys are quick and easy to produce. This paper outlines some of the many problems that should be anticipated.

Surveys are not simple: beware of the pitfalls.

Surveys are quick and easy to produce. This paper outlines some of the many problems that should be anticipated.

Statistics: an introduction to basic principles.

The essential principles of statistics as applied to surveys, studies, sampling, epidemiology, screening, and trials are described and explained.

Personal historical perspective of HIV: part 11.

All animal life on earth is thought to have a common origin and have common genetic mechanisms. Evolution has enabled differentiation of species. Pathogens likewise have evolved within various species and mostly come to a settled dynamic equilibrium such that co-existence results (pathogens ideally should not kill their hosts).

A personal historical perspective of HIV.

All animal life on earth is thought to have a common origin and have common genetic mechanisms. Evolution has enabled differentiation of species. Pathogens likewise have evolved within various species and mostly come to a settled dynamic equilibrium such that co-existence results (pathogens ideally should not kill their hosts).

Emergence of free will and consciousness in humans: implications for doctor-patient interactions.

Human brains have about 100 billion neurons each with about 1000 dendritic connections with other neurons giving a total of 100 000 billion deterministic dendritic switches. Various voting systems that the brain may use can produce conflicting results from identical inputs without any indication as to which one or ones would be correct. Voting systems cannot deliver unequivocal results in any other than the simplest situations.