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Volume 47(2);  February 1961
The cover of the journal
Biochemistry
SEQUENCE COMPLEMENTARITY OF T2-DNA AND T2-SPECIFIC RNA
Benjamin D. Hall and S. Spiegelman
Proc Natl Acad Sci U S A. 1961 February; 47(2): 137–146.
PMCID: PMC221635
FORMATION OF HETEROZYGOTES BY ANNEALING A MIXTURE OF TRANSFORMING DNAS
Roger M. Herriott
Proc Natl Acad Sci U S A. 1961 February; 47(2): 146–153.
PMCID: PMC221637
THE KINETICS OF CARRIER-MEDIATED ACTIVE TRANSPORT OF AMINO ACIDS
John A. Jacquez
Proc Natl Acad Sci U S A. 1961 February; 47(2): 153–163.
PMCID: PMC221639
THE ROLE OF PROTEIN SYNTHESIS IN EARLY ESTROGEN ACTION
Gerald C. Mueller, John Gorski, and Yoshio Aizawa
Proc Natl Acad Sci U S A. 1961 February; 47(2): 164–169.
PMCID: PMC221640
Botany
A KINETIN-LIKE COMPOUND IN MAIZE
Carlos O. Miller
Proc Natl Acad Sci U S A. 1961 February; 47(2): 170–174.
PMCID: PMC221642
Chemistry
STABILIZATION OF NH IN HYDROCARBON MATRICES AND ITS RELATION TO COMETARY PHENOMENA
Jay A. Glasel
Proc Natl Acad Sci U S A. 1961 February; 47(2): 174–180.
PMCID: PMC221644
Genetics
CORRELATED CHANGES IN ENVIRONMENT AND LETHAL FREQUENCY IN A NATURAL POPULATION OF DROSOPHILA MELANOGASTER
H. T. Band and P. T. Ives
Proc Natl Acad Sci U S A. 1961 February; 47(2): 180–185.
PMCID: PMC221647
Geophysics
THE FUNDAMENTAL FREE MODE OF THE EARTH'S INNER
Louis B. Slichter
Proc Natl Acad Sci U S A. 1961 February; 47(2): 186–190.
PMCID: PMC221649
Mathematics
THE CATEGORY OF TOPOLOGICAL OBJECTS
Yeaton H. Clifton and J. Wolfgang Smith
Proc Natl Acad Sci U S A. 1961 February; 47(2): 190–195.
PMCID: PMC221651
DEGREE OF APPROXIMATION TO A CONTINUOUS FUNCTION ON A NON-ANALYTIC CURVE
W. E. Sewell
Proc Natl Acad Sci U S A. 1961 February; 47(2): 195–202.
PMCID: PMC221653
SOME ASPECTS OF THE FERMAT PROBLEM (FIRST PAPER)
H. S. Vandiver
Proc Natl Acad Sci U S A. 1961 February; 47(2): 202–209.
PMCID: PMC221656
THE POSSIBILITY OF TSCHEBYCHEFF QUADRATURE ON INFINITE INTERVALS
Herbert S. Wilf
Proc Natl Acad Sci U S A. 1961 February; 47(2): 209–213.
PMCID: PMC221658
Microbiology
A RADIOBIOLOGICAL ANALOGY BETWEEN MEASLES VIRUS AND TEMPERATURE PHAGES
Paul H. Ackerman and Francis L. Black
Proc Natl Acad Sci U S A. 1961 February; 47(2): 213–220.
PMCID: PMC221659
Pathology
INVESTIGATION OF DISEASE RESISTANCE AND THE MATHEMATICAL PROBLEM OF PATTERNS
Roger J. Williams
Proc Natl Acad Sci U S A. 1961 February; 47(2): 221–224.
PMCID: PMC221660
Physics
EFFECT OF SURFACE TENSION ON THE KELVIN-HELMHOLTZ INSTABILITY OF TWO ROTATING FLUIDS
Z. Alterman
Proc Natl Acad Sci U S A. 1961 February; 47(2): 224–227.
PMCID: PMC221661
ON A MANY-DIMENSIONAL BWK APPROXIMATION
Don H. Secrest and Joseph O. Hirschfelder
Proc Natl Acad Sci U S A. 1961 February; 47(2): 227–240.
PMCID: PMC221662
Zoölogy
THE EFFECTS OF REDUCED COMPETITION IN BIRDS
Kenneth Crowell
Proc Natl Acad Sci U S A. 1961 February; 47(2): 240–243.
PMCID: PMC221663
Corrections
A Method for Defining Principal Modes of Nonlinear Systems Utilizing Infinite Determinants
Proc Natl Acad Sci U S A. 1961 February; 47(2): 243.
PMCID: PMC221664
Corrects: Demetrios G. Magiros. A METHOD FOR DEFINING PRINCIPAL MODES OF NONLINEAR SYSTEMS UTILIZING INFINITE DETERMINANTS. Proc Natl Acad Sci U S A. 1960 December; 46(12): 1608–1611.
On the Mutagenic Effect of Alkylating Agents
Proc Natl Acad Sci U S A. 1961 February; 47(2): 243.
PMCID: PMC221665
Corrects: Ekkehard Bautz, et al. ON THE MUTAGENIC EFFECT OF ALKYLATING AGENTS. Proc Natl Acad Sci U S A. 1960 December; 46(12): 1585–1594.
Regulation by Coliphage Lambda of the Expression of the Capacity to Synthesize a Sequence of Host Enzymes
Proc Natl Acad Sci U S A. 1961 February; 47(2): 243.
PMCID: PMC221666
Corrects: Michael B. Yarmolinsky, et al. REGULATION BY COLIPHAGE LAMBDA OF THE EXPRESSION OF THE CAPACITY TO SYNTHESIZE A SEQUENCE OF HOST ENZYMES. Proc Natl Acad Sci U S A. 1960 December; 46(12): 1626–1645.
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