This report presents a characterization of the quantum mechanical
analog of the Gibbs canonical density. The approach is
based on a method developed by D.S. Carter for the case of classical
statistical mechanics, which considers composite mechanical systems
composed of mechanically and statistically independent components.
After a brief introductory chapter,...
The author studies the class of rectangular arrangements in
terms of two binary relations on the objects of the arrangement.
He shows how a univalent matrix determines a unique rectangular
arrangement, and how each rectangular arrangement is associated
with one, two, or four distinct matrices, according to the number
of...
Several learning processes which can be used with computing
machinery are discussed in this paper. Consideration is given to what
has been done in this field in the past as well as to what is now
being done. New ideas which might be applied to such study are
introduced.
An...
A procedure was developed for the isolation and maintenance
of isolated abdomina of the cockroach, Leucophaea maderae. The
degree of injury and loss of body fluid was best minimized by ligating
the animals immediately following the final molt. The nutritional
needs of the isolates were satisfied by filling the animals'...
Water and methanol adsorption isotherms at 25° and 37° C.
were determined on a series of organo-bentonite clays. The clays
differed in the length of the carbon chain attached to the amine adsorbed
in the cation exchange position. The amines used had carbon
chains of 4, 6, 8, 10, 12,...
The female Philometra americana Ekbaum, 1933 is a common
subcutaneous parasite of the starry flounder, Platichthyes stellatus (Pallas) of Yaquina Bay, Lincoln County, Oregon. Maturation of this
worm produces noticeable red cysts subcutaneously between the fin
and tail rays and similarly on the operculum. The gravid female
penetrates the epidermis...