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Volume 46(4);  April 1960
The cover of the journal
Astronomy
INDIGENOUS ORGANIC MATTER ON THE MOON
Carl Sagan
Proc Natl Acad Sci U S A. 1960 April; 46(4): 393–396.
PMCID: PMC222849
BIOLOGICAL CONTAMINATION OF THE MOON
Carl Sagan
Proc Natl Acad Sci U S A. 1960 April; 46(4): 396–402.
PMCID: PMC222850
Biochemistry
INTRAMOLECULAR MODELS DEPICTING THE KINETIC IMPORTANCE OF „FIT” IN ENZYMATIC CATALYSIS
Thomas C. Bruice and Upendra K. Pandit
Proc Natl Acad Sci U S A. 1960 April; 46(4): 402–404.
PMCID: PMC222851
FREE RADICALS IN HEART MUSCLE MITOCHONDRIAL PARTICLES: GENERAL CHARACTERISTICS AND LOCALIZATION IN THE ELECTRON TRANSPORT SYSTEM
Barry Commoner and Thomas C. Hollocher, Jr.
Proc Natl Acad Sci U S A. 1960 April; 46(4): 405–416.
PMCID: PMC222852
FREE RADICALS IN HEART MUSCLE MITOCHONDRIAL PARTICLES: MECHANISM OF FORMATION
Thomas C. Hollocher, Jr. and Barry Commoner
Proc Natl Acad Sci U S A. 1960 April; 46(4): 416–427.
PMCID: PMC222853
THE SUSTAINED GROWTH OF HUMAN AND ANIMAL CELLS IN A PROTEIN-FREE ENVIRONMENT
Harry Eagle
Proc Natl Acad Sci U S A. 1960 April; 46(4): 427–432.
PMCID: PMC222854
METABOLISM AND MORPHOLOGY OF RIBONUCLEOPROTEIN PARTICLES FROM THE CELL NUCLEUS OF LYMPHOCYTES
John H. Frenster, Vincent G. Allfrey, and Alfred E. Mirsky
Proc Natl Acad Sci U S A. 1960 April; 46(4): 432–444.
PMCID: PMC222855
EVIDENCE FOR HELICAL STRUCTURE IN POLYURIDYLIC ACID
Marie N. Lipsett
Proc Natl Acad Sci U S A. 1960 April; 46(4): 445–446.
PMCID: PMC222856
INHIBITION OF MAMMALIAN GLUCOSE-6-PHOSPHATE DEHYDROGENASE BY STEROIDS
Paul A. Marks and Julia Banks
Proc Natl Acad Sci U S A. 1960 April; 46(4): 447–452.
PMCID: PMC222857
STRAND SEPARATION AND SPECIFIC RECOMBINATION IN DEOXYRIBONUCLEIC ACIDS: BIOLOGICAL STUDIES
J. Marmur and D. Lane
Proc Natl Acad Sci U S A. 1960 April; 46(4): 453–461.
PMCID: PMC222858
STRAND SEPARATION AND SPECIFIC RECOMBINATION IN DEOXYRIBONUCLEIC ACIDS: PHYSICAL CHEMICAL STUDIES
P. Doty, J. Marmur, J. Eigner, and C. Schildkraut
Proc Natl Acad Sci U S A. 1960 April; 46(4): 461–476.
PMCID: PMC222859
THE RELATION OF UREA TO THE MOVEMENT OF WATER IN LIVER TISSUE
Eugene L. Opie
Proc Natl Acad Sci U S A. 1960 April; 46(4): 477–483.
PMCID: PMC222860
THE INCORPORATION OF LEUCINE-C14 INTO PROTEIN BY A CELL-FREE PREPARATION FROM MAIZE KERNELS
Robert Rabson and G. David Novelli
Proc Natl Acad Sci U S A. 1960 April; 46(4): 484–488.
PMCID: PMC222861
REPRESSION OF AN ACETYLORNITHINE PERMEATION SYSTEM
Henry J. Vogel
Proc Natl Acad Sci U S A. 1960 April; 46(4): 488–494.
PMCID: PMC222862
Botany
THE BALANCE BETWEEN COHERENCE AND VARIATION IN EVOLUTION
Jens Clausen and Wm. M. Hiesey
Proc Natl Acad Sci U S A. 1960 April; 46(4): 494–506.
PMCID: PMC222863
Chemistry
PARAMAGNETIC DEFECTS IN IRRADIATED KClO4
Terry Cole
Proc Natl Acad Sci U S A. 1960 April; 46(4): 506–509.
PMCID: PMC222864
CONTINUOUS ELECTROPHORETIC FRACTIONATION STABILIZED BY ELECTROMAGNETIC ROTATION
Alexander Kolin
Proc Natl Acad Sci U S A. 1960 April; 46(4): 509–523.
PMCID: PMC222865
Genetics
A NEW HETEROCHROMATIN EFFECT IN DROSOPHILA MELANOGASTER
M. M. Green
Proc Natl Acad Sci U S A. 1960 April; 46(4): 524–528.
PMCID: PMC222866
INHERITANCE OF ANTI-A1 HEMAGGLUTINATING ACTIVITY IN LIMA BEANS, PHASEOLUS LUNATUS
K. F. Schertz, W. Jurgelsky, Jr., and W. C. Boyd
Proc Natl Acad Sci U S A. 1960 April; 46(4): 529–532.
PMCID: PMC222867
THE HUMAN CHROMOSOMAL SATELLITES IN NORMAL PERSONS AND IN TWO PATIENTS WITH MARFAN'S SYNDROME
J. H. Tjio, T. T. Puck, and A. Robinson
Proc Natl Acad Sci U S A. 1960 April; 46(4): 532–539.
PMCID: PMC222868
Mathematics
DIFFERENTIALS AND EXTREMAL LENGTH ON RIEMANN SURFACES
Robert D. M. Accola
Proc Natl Acad Sci U S A. 1960 April; 46(4): 540–543.
PMCID: PMC222869
HOMOLOGY AND HOMOTOPY OF H-SPACES
William Browder
Proc Natl Acad Sci U S A. 1960 April; 46(4): 543–545.
PMCID: PMC222870
ON THE USE OF ABSTRACT ALGEBRA AS A METHOD FOR OBTAINING RESULTS INVOLVING RATIONAL INTEGERS ONLY AND THE REVERSE OF THIS PROCEDURE
H. S. Vandiver
Proc Natl Acad Sci U S A. 1960 April; 46(4): 545–554.
PMCID: PMC222871
HOMOLOGY THEORIES AND DUALITY
George W. Whitehead
Proc Natl Acad Sci U S A. 1960 April; 46(4): 554–556.
PMCID: PMC222872
CONTRIBUTIONS TO INFORMATION THEORY
J. Wolfowitz
Proc Natl Acad Sci U S A. 1960 April; 46(4): 557–561.
PMCID: PMC222873
Pathology
SOME STATISTICAL OBSERVATIONS ON A COOPERATIVE STUDY OF HUMAN PULMONARY PATHOLOGY. III
Edwin B. Wilson and Mary H. Burke
Proc Natl Acad Sci U S A. 1960 April; 46(4): 561–566.
PMCID: PMC222874
Physics
ON A THEORY OF DISPERSION BY CONTINUOUS MOVEMENTS
C. C. Lin
Proc Natl Acad Sci U S A. 1960 April; 46(4): 566–570.
PMCID: PMC222875
UNITARY OPERATOR BASES
Julian Schwinger
Proc Natl Acad Sci U S A. 1960 April; 46(4): 570–579.
PMCID: PMC222876
Zoölogy
ESTRADIOL-17β, ESTRONE, AND PROGESTERONE IN THE OVARIES OF DOGFISH (SQUALUS SUCKLEYI)
Herbert H. Wotiz, Charles R. Botticelli, Frederick L. Hisaw, Jr., and A. G. Olsen
Proc Natl Acad Sci U S A. 1960 April; 46(4): 580–583.
PMCID: PMC222877
Journal Matter
Original table of contents page
Administrative content — journal masthead, notices, indexes, etc.
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