pmc logo imageJournal ListSearchpmc logo image
Logo of pnasPNAS Home page.PNAS Editorial BoardPNAS AboutPNAS SubscriptionsPNAS Info for Authors
This journal provides immediate access to some articles.
Other Issues:  previous | next | latest | archive
Volume 42(12);  December 1956
The cover of the journal
Astronomy
THE COSMIC ABUNDANCES OF POTASSIUM, URANIUM, AND THORIUM AND THE HEAT BALANCES OF THE EARTH, THE MOON, AND MARS
Harold C. Urey
Proc Natl Acad Sci U S A. 1956 December; 42(12): 889–891.
PMCID: PMC528364
Bacteriology
THE ISOLATION OF A NEW VIRUS ASSOCIATED WITH RESPIRATORY CLINICAL DISEASE IN HUMANS
Winston H. Price
Proc Natl Acad Sci U S A. 1956 December; 42(12): 892–896.
PMCID: PMC528365
Biochemistry
REVERSIBILITY AND EQUILIBRIUM OF THE GLUTAMINASE REACTION OBSERVED CALORIMETRICALLY TO FIND THE FREE ENERGY OF ADENOSINE TRIPHOSPHATE HYDROLYSIS
T. H. Benzinger and R. Hems
Proc Natl Acad Sci U S A. 1956 December; 42(12): 896–900.
PMCID: PMC528366
ON THE FUNCTIONS OF X-IRRADIATED “FEEDER” CELLS IN SUPPORTING GROWTH OF SINGLE MAMMALIAN CELLS
Harold W. Fisher and Theodore T. Puck
Proc Natl Acad Sci U S A. 1956 December; 42(12): 900–906.
PMCID: PMC528367
Botany
THE PRODUCTION OF TUMOROUS ABNORMALITIES IN FERN PROTHALLI BY IONIZING RADIATIONS
Carl R. Partanen and Taylor A. Steeves
Proc Natl Acad Sci U S A. 1956 December; 42(12): 906–909.
PMCID: PMC528368
Chemistry
A NEW METHOD FOR THE MEASUREMENT OF SELF-DIFFUSION
Henry C. Thomas
Proc Natl Acad Sci U S A. 1956 December; 42(12): 909–913.
PMCID: PMC528369
Mathematics
PARABOLIC SYSTEMS OF DIFFERENTIAL EQUATIONS WITH TIME-DEPENDENT COEFFICIENTS
Felix E. Browder
Proc Natl Acad Sci U S A. 1956 December; 42(12): 914–917.
PMCID: PMC528370
ON ABSOLUTE CONVERGENCE OF FOURIER SERIES
Fu Cheng Hsiang
Proc Natl Acad Sci U S A. 1956 December; 42(12): 917–920.
PMCID: PMC528371
A SEQUENTIAL DECISION PROBLEM WITH A FINITE MEMORY
Herbert Robbins
Proc Natl Acad Sci U S A. 1956 December; 42(12): 920–923.
PMCID: PMC528372
SLIP SURFACES IN PLASTIC SOLIDS
T. Y. Thomas
Proc Natl Acad Sci U S A. 1956 December; 42(12): 923–927.
PMCID: PMC528373
NOTE ON DEGREE OF APPROXIMATION TO ANALYTIC FUNCTIONS BY RATIONAL FUNCTIONS WITH PREASSIGNED POLES
J. L. Walsh
Proc Natl Acad Sci U S A. 1956 December; 42(12): 927–930.
PMCID: PMC528374
Physics
SIMPLIFIED MODEL TO DEMONSTRATE THE ENERGY FLOW AND FORMATION OF TRAVELING WAVES SIMILAR TO THOSE FOUND IN THE COCHLEA
G. von Békésy
Proc Natl Acad Sci U S A. 1956 December; 42(12): 930–944.
PMCID: PMC528375
CURRENT RESEARCH FINDINGS ON RADIOACTIVE FALLOUT
Willard F. Libby
Proc Natl Acad Sci U S A. 1956 December; 42(12): 945–962.
PMCID: PMC528376
Psychology
AUDITORY RESPONSES IN THE COMMON BOX TURTLE
Ernest Glen Wever and Jack A. Vernon
Proc Natl Acad Sci U S A. 1956 December; 42(12): 962–965.
PMCID: PMC528377
Journal Matter
Original table of contents page
| PDF–74K |
Administrative content — journal masthead, notices, indexes, etc.
Other Issues:  previous | next | latest | archive
Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of
National Academy of Sciences