Alfred Newton Richards 1876-1966.

Alfred Newton Richards.

Congruences for a Class of Alternating Lacunary Sums of Binomial Coefficients

An 1876 theorem of Hermite, later extended by Bachmann, gives congruences modulo primes for lacunary sums over the rows of Pascal’s triangle. This paper gives an analogous result for alternating sums over a certain class of rows. The proof makes use of properties of certain linear recurrences.

Griefs and Discontents

Those of us who seek to help the bereaved will welcome this book. Written in language free of Americanese, it describes the mental mechanisms behind the phenomena of grieving. As the author says: 'Often we lose what we most value and as we do not really accept our losses, it is an invariable aspect of the human condition, therefore, to attempt to remove the dilemma. Our greatest achievements fr...

Evidence for four types of erythrocyte glucose-6-phosphate dehydrogenase from G-6-PD-deficient human subjects.

Safety Considerations on MRI Systems for Firefighters and Paramedics

Background and Objectives: The use of Magnetic Resonance Imaging (MRI) systems is on the rise and the number of installed systems is constantly increasing all over the world. This raises the possibility for emergency personnel to get in contact with these systems. However, the clothing and working material of paramedics and firefighters is not designed for the use on magnets. M...