ORTHOPAEDICS. By J. Crawford Adams, M.D., M.S., F.R.C.S. (Pp. 476; figs. 361. 40s.). Edinburgh & London: E. & S. Livingstone, 1967. THEi first edition of this book appeared in 1956, so that the appearance of this sixth edition means there has been a new edition every two years. Not only does this show very energetic re-writing by the author, but it points most effectively to the immense popular...

In the 9 years of its existence this wonderfully complete little book has come into its 3rd edition and its 9th reprint. Nine editions in 9 years is surely a hallmark of success, and the present edition will be found to have incorporated in its -110 pages, most of the advances in surgery since the last edition was written. It is a marvellously compact "tabloid" surgery and should be very useful...

The fourth edition of the international soil classification system World Reference Base for Soil Resources (WRB) was released in 2022. It maintains 32 Groups at first level. Most qualifiers (second level) and most diagnostic horizons, properties materials were maintained but some abolished new ones introduced. main part is followed by six annexes, them are new. For time, WRB has a Field Guide (...

In television and movie industry a so-called "blue box" technology is used, when an object in the foreground (e. g. a person) needs to be placed on a different background (e. g. a computer-generated 3D scene). However, it is often not economically justifiable to build a "blue box", therefore other methods can be used to extract the foreground object and remove or replace bac...

One of the most critical problems that hospitality firms face in selecting employees is that the use of cognitive ability tests and other valid predictors of job performance lead to subgroup differences between majority and minority group members. The recent Ricci v. DeStefano U.S. Supreme Court case provides new implications for the adverse diversity-validity dilemma. This paper seeks to bridg...

This study aims at exploring ink spreading, which causes significant colour deviations in ink-jet printing. We present a method for investigating this phenomenon by considering only a limited number of cases. Using a combinatorial approach based on Pólya’s counting theory, we determine a small set of ink drop configurations which allows to deduce the ink spreading in all other cases. This impro...