期刊：
American Psychologist,1949年4(9):385-396 ISSN：0003-066X
通讯作者：
Fisher, M.B.
作者机构：
Fresno State College, Fresno, CA, United States
通讯机构：
Fresno State College, United States
关键词：
Western Psychological Association;scientific communication
摘要：
The Western Psychological Association held its twenty-ninth annual meeting at the University of Oregon in Eugene, June 24 and 25, 1949. This article presents a program of papers presented at the aforementioned meeting. (PsycINFO Database Record (c) 2006 APA, all rights reserved).
期刊：
Journal of the American Pharmaceutical Association. American Pharmaceutical Association,1949年38(5):273-274 ISSN：1930-2304
作者机构：
Department of Pharmacy Howard College, Birmingham, Ala.
关键词：
*SILICON COMPOUNDS
摘要：
Two and four per cent aqueous suspensions of microcrystalline silica are described. These suspensions were substituted for 5 per cent aqueous bentonite suspension in Calamine Lotion and Chalk Mixture. Four per cent silica suspension appears to be superior to 5 per cent bentonite suspension in Calamine Lotion. Substitution of 5 per cent bentonite by 4 per cent silica suspension in Chalk Mixture proved to be unsatisfactory.
期刊：
Journal of the American Oil Chemists’ Society,1949年26(10):512-515 ISSN：0003-021X
作者机构：
[S. C. Fang; D. E. Bullis] Department of Agricultural Chemistry, Oregon State College, Corvallis
摘要：
Barcelona and Du Chilly fibert nuts have been analyzed for their principal constituents. The characteristics of the oils obtained by solvent extraction and by cold expression have been determined and their fatty acid composition has been ascertained. Most of the chemical and physical characteristics of the oils as determined in this laboratory agree well with values previously reported by other investigators on European varieties. However, our study of the oil components shows a considerable difference in fatty acid composition.
期刊：
The Medical clinics of North America,1948年32(6):1523-1532 ISSN：0025-7125
作者机构：
Associate in Obstetrics and Gynecology, Jefferson Medical College;Assistant Obstetrician and Gynecologist, Jefferson Medical College Hospital<&wdkj&>Department of Obstetrics and Gynecology, Jefferson Medical College and Hospital, Philadelphia
期刊：
The Journal of the Acoustical Society of America,1948年20(5):616 ISSN：0001-4966
作者机构：
The Pennsylvania State College, State College, Pennsylvania
摘要：
A theory is presented for the design of laminations to be used in the construction of transducers having a plane piston‐like radiating face. Data is given to show how well the theory predicts the operating characteristics of these transducers.
期刊：
The Journal of the Acoustical Society of America,1948年20(4):593 ISSN：0001-4966
作者机构：
The Pennsylvania State College
摘要：
Theory is presented for the design of laminations used in the construction of a transducer having a plane, piston‐like radiating face. Data are presented to show to what extent the simplifying assumptions made are justifiable.
期刊：
Journal of the American Statistical Association,1948年43(243):391-402 ISSN：0162-1459
作者机构：
Iowa State College <&wdkj&> Hunter College;[Marilyn Harris] Iowa State College ;[Marilyn Harris] Hunter College;[D. G. Horvitz; A. M. Mood] Iowa State College
关键词：
*STATISTICS/methods
摘要：
Methods are developed for determining sample sizes required to estimate means of normal populations with given precision, or to give significance when means differ by a specified amount. The methods assume that an estimate of the variance has been obtained from a previous or preliminary experiment. A simple device is suggested for using a priori information about the variance when a formal estimate is not available.
