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Volume 43(6);  June 15, 1957
The cover of the journal
Biochemistry
OCCURRENCE OF URINARY ACID MUCOPOLYSACCHARIDES IN THE HURLER SYNDROME
Albert Dorfman and Andrew E. Lorincz
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 443–446.
PMCID: PMC528477
ASYMMETRIC DISTRIBUTION OF C14 IN SUGARS FORMED DURING PHOTOSYNTHESIS
Martin Gibbs and Otto Kandler
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 446–451.
PMCID: PMC528478
MULTIPLICATION OF ANIMAL CELLS IN SUSPENSION MEASURED BY COLONY COUNTS
R. B. L. Gwatkin, J. E. Till, G. F. Whitmore, L. Siminovitch, and A. F. Graham
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 451–457.
PMCID: PMC528479
ON THE DISTRIBUTION OF PURINE AND PYRIMIDINE BASES IN THE NUCLEIC ACID OF TOBACCO MOSAIC VIRUS
Roger G. Hart
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 457–463.
PMCID: PMC528480
MOLECULAR BASIS OF BIOLOGICAL STABILITY TO HIGH TEMPERATURES
Henry Koffler, G. E. Mallett, and Jimmy Adye
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 464–477.
PMCID: PMC528481
ON EXCITATION OF BIOLOGICAL SUBSTANCES
Richard H. Steele and Albert Szent-Györgyi
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 477–491.
PMCID: PMC528482
REPRESSED AND INDUCED ENZYME FORMATION: A UNIFIED HYPOTHESIS
Henry J. Vogel
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 491–496.
PMCID: PMC528483
Botany
THE SITES OF ORTHOPHOSPHATE UPTAKE BY BARLEY ROOTS
C. E. Hagen, J. E. Leggett, and P. C. Jackson
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 496–506.
PMCID: PMC528484
Mathematics
THE NORM FORM OF A RATIONAL DIVISION ALGEBRA
A. A. Albert
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 506–509.
PMCID: PMC528485
THE RANDOM FUNCTIONS OF COSMIC-RAY CASCADES
T. E. Harris
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 509–512.
PMCID: PMC528486
THE IDENTITY OF THE WEAK AND STRONG EXTENSIONS OF A LINEAR ELLIPTIC DIFFERENTIAL OPERATOR
M. S. Narasimhan
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 513–514.
PMCID: PMC528487
Physics
ON THE PRINCIPLE OF INVARIANT IMBEDDING AND DIFFUSE REFLECTION FROM CYLINDRICAL REGIONS
Richard Bellman and Robert Kalaba
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 514–517.
PMCID: PMC528488
ON THE PRINCIPLE OF INVARIANT IMBEDDING AND ONE-DIMENSIONAL NEUTRON MULTIPLICATION
Richard Bellman, Robert Kalaba, and G. Milton Wing
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 517–520.
PMCID: PMC528489
ON THE EXPANSION OF FUNCTIONS WHICH SATISFY FOUR BOUNDARY CONDITIONS
S. Chandrasekhar and W. H. Reid
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 521–527.
PMCID: PMC528490
Physiology
ELECTROMAGNETIC DETERMINATION OF REGIONAL BLOOD FLOW IN UNANESTHETIZED ANIMALS
Alexander Kolin, Nicholas Assali, George Herrold, and Roderick Jensen
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 527–540.
PMCID: PMC528491
ON THE BINDING OF ADENOSINE TRIPHOSPHATE BY ACTOMYOSIN
L. B. Nanninga and W. F. H. M. Mommaerts
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 540–542.
PMCID: PMC528492
Zoölogy and Anatomy
RESULTS OF INVERSION OF NEURAL PLATE MATERIAL
J. S. Nicholas
Proc Natl Acad Sci U S A. 1957 June 15; 43(6): 542–545.
PMCID: PMC528493
Journal Matter
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Administrative content — journal masthead, notices, indexes, etc.
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