期刊：
The Medical clinics of North America,1954年11(6):1705-1716 ISSN：0025-7125
通讯作者：
ROBERTS, E.
作者机构：
Assistant Clinical Professor of Medicine, Woman’s Medical College;Associate in Medicine, University of Pennsylvania School of Medicine;Medical Director, Children’s Heart Hospital, Philadelphia.
作者：
Charles F. Smullin;H. M. Davis;T. H. Hopper;Poster Dee Snnell;R. K. Summerbell;...
期刊：
Journal of the American Oil Chemists' Society,1954年31(8):a30-a32 ISSN：0003-021X
作者机构：
Atlas Powder CompanyWilmingtonDel.<&wdkj&>Pennsylvania State CollegeState CollegePa.<&wdkj&>Southern UtilizationNew OrleansLa.<&wdkj&>Foster D. Snell Inc.New YorkN. Y.<&wdkj&>Northwestern UniverwsityEvanstonIllinois<&wdkj&>University of IllinoisUrbanaIll.;[Charles F. Smullin] Atlas Powder Company, Wilmington;[H. M. Davis] Pennsylvania State College, State College;[T. H. Hopper] Southern Utilization, New Orleans;[Poster Dee Snnell] Foster D. Snell Inc., New York
期刊：
The Journal of Educational Research,1954年48:156-160
作者机构：
University of Wisconsin<&wdkj&>University of Minnesota<&wdkj&>Michigan State College;[L. Joseph Lins] University of Wisconsin;[Valworth Plum] University of Minnesota;[John Schmid] Michigan State College
作者机构：
Institute for Atomic Research and Department of Chemistry, Iowa State College, Ames, Iowa<&wdkj&>
摘要：
The relative yields of thirteen products resulting from the photofission of Th232 have been determined radiochemically. Photofission was induced by a 69-Mev synchrotron bremsstrahlung beam. The photofission yield curve was shown by these data to have two peaks, occurring approximately at nucleon numbers 91 and 138 with values of 6.9 percent. The peak-to-valley ratio was 10 and the half-width of the peaks was 12. Symmetry of the curve about nucleon number of 114.5 indicated the average emission of approximately three neutrons. The results were compared with other photofission data and the yield curves of other fission processes.
作者机构：
Department of Physics, Iowa State College, Ames, Iowa<&wdkj&>
摘要：
The Schwinger variational principle is reduced to a convenient form by using trial solutions of the form Σiciui(x). The reliability of the formalism for polynomial trial solutions is studied for several fields, and wherever possible comparisons are made with phase shifts determined from other variational principles.
期刊：
The Surgical clinics of North America,1953年33(6):1587-1595 ISSN：0039-6109
作者机构：
Associate Professor of Orthopedics and Fractures, Hahnemann Medical College, Philadelphia<&wdkj&>Instructor in Orthopedics and Fractures, Hahnemann Medical College, Philadelphia
期刊：
Journal of Applied Physics,1953年24(11):1371 ISSN：0021-8979
作者机构：
Physics Department, The Pennsylvania State College, State College, Pennsylvania
摘要：
Experiments are described which measure the threshold acoustic pressures necessary for cavitation which can destroy certain biological cells. These thresholds are in the neighborhood of 0.3 atmospheres in the frequency range from 0.4 to 500 kc. At lower frequencies much greater pressures appear necessary and the type of biological damage is different. An interpretation of these results is discussed.
作者：
Edyth M. Renshaw Editor;Lola Walker;Mary K. Sands;Josh P. Roach;Dorothy Richey;...
期刊：
The Southern Speech Journal,1953年18:248-253
作者机构：
Baylor University<&wdkj&>Arkansas State Teachers College<&wdkj&>Texas State College for Women<&wdkj&>Furman University<&wdkj&>University of Texas<&wdkj&>Mississippi Southern College<&wdkj&>University of Arkansas;[Lola Walker] Baylor University;[Mary K. Sands] Arkansas State Teachers College;[Josh P. Roach] Texas State College for Women;[Dorothy Richey] Furman University
摘要：
ESSENTIALS OF GENERAL SPEECH. By A. Craig Baird and Franklin H. Knower. New York: McGraw‐Hill Book Company, Inc., 1952; pp. vii + 253. $3.00. THE MEASUREMENT OF HEARING. By Ira J. Hirsch. New York: McGraw‐Hill Book Company, 1952; pp. ix + 364. $6.00. ONE‐ACT PLAYS FOR ALL‐GIRL CASTS. By Marjorie B. Paradis. Boston: Plays, Inc., 1952; pp. 193. $2.50. REPRESENTATIVE AMERICAN SPEECHES. 1951–1952, Vol. 3. Edited by A. Craig Baird. New York: H. W. Wilson Company, 1952; pp. 197 only. $1.75. PRACTICAL BUSINESS SPEAKING. By William Phillips Sanford and Willard Hayes Yeager, (Third Edition). New York: McGraw‐Hill Book Company, 1952; pp. xiv + 322. $4.75. ARGUMENTATION, DISCUSSION AND DEBATE. By A. Craig Baird. New York: McGraw‐Hill Book Company, Inc., 1950; pp. x + 422. $4.50. PLAY PRODUCTION AND DIRECTION. By C. Lowell Lees. New York: Prentice‐Hall, 1951; pp. xiii + 311. $3.75.
