PRESENT DAY CLIMATES IN THEIR TIME RELATION

Tracing Galaxy Evolution by Their Present-day Luminosity Function

Galaxy luminosity functions are derived for different morphological types and various colors of galaxies, to trace the evolutionary effects which a priori should be different for void and supercluster galaxies. We also analyse how the galaxy group content changes in the large-scale environment. One of the principal results is the conclusion that the evolution of spiral galaxies is almost indepe...

Synchronized lying in cattle in relation to time of day

Postural synchrony, in which cattle lie down or stand up at the same time as other members of their herd, occurs both in animals housed indoors when enough resources are available and in those out at pasture, but the mechanisms by which such synchrony is achieved are poorly understood. We report a study of 6 groups of young cattle (Bos taurus) at pasture in which our aim was to study postural s...

[Present-day problems in toxicology].

The Present Day Treatment

In the last three or four years the treatment of diabetes has been greatly simplified, and the introduction of insulin has enabled the general practitioner to treat diabetes with a considerable degree of success. Yet there still appears to exist some confusion as to the indications and contraindications for certain well established therapeutic measures in the management of diabetes. It is the p...

Present-day Psychology

PRESENT-DAY PSYCHOLOGY. A. A. Roback, Editor, with the collaboration of forty experts in the variouis fields. New York, Philosophical Library. 1955. xiv, 995 pp. $12.00. In this volume an attempt is made to survey the entire field of contemporary psychology, incltudinig not only the traditional topics of academlic psychological interest, such as perception, cognition, attention, emotionl, etc.,...