Petroleum Chemistry at Present Day

Green Chemistry at the present in Korea

OBJECTIVES Despite the great contribution made by chemical substances to the development of modern civilization, their indiscriminate use has caused various kinds of damage to the global environment and human beings. Accordingly, the major developed countries and international society have tried to ensure the safe use of chemicals and a reduction in the use of hazardous chemicals through the es...

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.,...

Present-day Cluster Formation

A review is presented of some of the observed features of cluster formation in our Galaxy and in external galaxies. Evidence is summarized suggesting that star clusters form only in the densest parts of large star-forming complexes, and that the molecular clumps in which they form are compressed in part by the effects of earlier star formation. The formation of massive globular-like clusters ap...

Croup-present day concept.