Max Henríquez Ureña (1885-1968)

On my Min-Max Theorem (1968) and its consequences

Central to the origins of my operator trigonometry, a theory in which I initiated the concepts of antieigenvalues and antieigenvectors, is my 1968 Min-Max Theorem. I will discuss its motivation, proof, and consequences. Special emphasis will be given here to a new view that sin φ(A) may be viewed as a general optimum which encompasses many other optima of individual interest. 1. The application...

Dev115253 1885..1892

Neural stem cells (NSCs) are defined by their ability to self-renew and to differentiate into mature neuronal and glial cell types. NSCs are the subject of intense investigation, owing to their crucial roles in neural development and adult brain function and because they present potential targets for gene and cell replacement therapies following injury or disease. Approaches to specifically gen...

Trr 1968

variable following an identical probability distribution as the arrival process. A new estimation method of the average travel time uses a crosscorrelation analysis of traffic flow measurement data. This method requires only traffic flow information, which is available from the measurements of single loop detectors upstream and downstream from one link. Different from the existing maximum cross...

Thompson House centenary, 1885-1985.

The 'Thompson Memorial Home for Incurables', now Thompson House, was completed and ready for the admission of patients in February 1885. This very fine building in the Queen Anne style stands on the Magheralave Road, Lisburn, nearly opposite the Friends' School. It is a memorial to William Thompson Esq, MD, FRCSI, born 7th March, 1806. He had been surgeon to the County Antrim Infirmary, Seymour...

George Hathorn Smith 1885-1952 *