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Table of Contents

October 01, 1969; vol. 64 no. 2

Physical Sciences: Chemistry

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    AN IMPROVED ITERATION METHOD FOR THE CALCULATION OF SURFACE TENSION USING THE SIGNIFICANT STRUCTURE THEORY OF LIQUIDS
    Mu Shik Jhon and Henry Eyring
    PNAS October 1, 1969 64 (2) 415-419; https://doi.org/10.1073/pnas.64.2.415
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    THE EXTRACELLULAR NUCLEASE OF Staphylococcus aureus: STRUCTURES OF THE NATIVE ENZYME AND AN ENZYME-INHIBITOR COMPLEX AT 4 Å RESOLUTION
    Arthur Arnone, C. James Bier, F. Albert Cotton, Edward E. Hazen Jr., David C. Richardson, and Jane S. Richardson
    PNAS October 1, 1969 64 (2) 420-427; https://doi.org/10.1073/pnas.64.2.420
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    SOLID PHASE SYNTHESIS OF A 42-RESIDUE FRAGMENT OF STAPHYLOCOCCAL NUCLEASE: PROPERTIES OF A SEMISYNTHETIC ENZYME
    David A. Ontjes and Christian B. Anfinsen
    PNAS October 1, 1969 64 (2) 428-435; https://doi.org/10.1073/pnas.64.2.428
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    HYDROCARBON DISTRIBUTION OF ALGAE AND BACTERIA, AND MICROBIOLOGICAL ACTIVITY IN SEDIMENTS
    Jerry Han and Melvin Calvin
    PNAS October 1, 1969 64 (2) 436-443; https://doi.org/10.1073/pnas.64.2.436
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    SENSITIVE CRITERIA FOR THE CRITICAL SIZE FOR HELIX FORMATION IN OLIGOPEPTIDES
    Murray Goodman, Antonio S. Verdini, Claudio Toniolo, William D. Phillips, and Frank A. Bovey
    PNAS October 1, 1969 64 (2) 444-450; https://doi.org/10.1073/pnas.64.2.444
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    INTERBASE VIBRATIONAL COUPLING IN G:C POLYNUCLEOTIDE HELICES
    F. B. Howard, J. Frazier, and H. Todd Miles
    PNAS October 1, 1969 64 (2) 451-458; https://doi.org/10.1073/pnas.64.2.451

Physical Sciences: Physics

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    FERROMAGNETISM AND SUPERCONDUCTIVITY IN URANIUM COMPOUNDS
    B. T. Matthias, C. W. Chu, E. Corenzwit, and D. Wohlleben
    PNAS October 1, 1969 64 (2) 459-461; https://doi.org/10.1073/pnas.64.2.459

Physical Sciences: Mathematics

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    SOME BILINEAR GENERATING FUNCTIONS
    H. M. Srivastava
    PNAS October 1, 1969 64 (2) 462-465; https://doi.org/10.1073/pnas.64.2.462
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    CLASSIFICATION OF THE REAL INFINITE SIMPLE AND REAL INFINITE PRIMITIVE LIE ALGEBRAS
    Steven Shnider
    PNAS October 1, 1969 64 (2) 466-467; https://doi.org/10.1073/pnas.64.2.466
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    ON THE VITALI-HAHN-SAKS AND NIKODÝM THEOREMS
    James K. Brooks
    PNAS October 1, 1969 64 (2) 468-471; https://doi.org/10.1073/pnas.64.2.468

Biological Sciences: Botany

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    TEMPERATURE AND MANGANESE AS DETERMINING FACTORS IN THE PRESENCE OF DIATOM OR BLUE-GREEN ALGAL FLORAS IN STREAMS
    Ruth Patrick, Bowman Crum, and John Coles
    PNAS October 1, 1969 64 (2) 472-478; https://doi.org/10.1073/pnas.64.2.472
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    THE HIGH-ENERGY LIGHT ACTION CONTROLLING PLANT RESPONSES AND DEVELOPMENT
    H. A. Borthwick, S. B. Hendricks, M. J. Schneider, R. B. Taylorson, and V. K. Toole
    PNAS October 1, 1969 64 (2) 479-486; https://doi.org/10.1073/pnas.64.2.479
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    QUANTITATIVE STUDY OF CLINAL VARIATION IN Juniperus virginiana USING TERPENOID DATA
    Robert H. Flake, Ernst Von Rudloff, and B. L. Turner
    PNAS October 1, 1969 64 (2) 487-494; https://doi.org/10.1073/pnas.64.2.487
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    AUXIN AND GROWTH OF EXCISED ROOTS OF Bryophyllum calycinum
    William J. Robbins and Annette Hervey
    PNAS October 1, 1969 64 (2) 495-497; https://doi.org/10.1073/pnas.64.2.495

Biological Sciences: Physiology

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    CONTROL OF GENE ACTIVITIES IN THE POLYTENE CHROMOSOMES OF Chironomus tentans BY ECDYSONE AND JUVENILE HORMONE
    Markus Lezzi and Lawrence I. Gilbert
    PNAS October 1, 1969 64 (2) 498-503; https://doi.org/10.1073/pnas.64.2.498
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    CROSS-BRIDGE PROPERTIES DERIVED FROM MUSCLE ISOTONIC VELOCITY TRANSIENTS
    R. J. Podolsky, A. C. Nolan, and S. A. Zaveler
    PNAS October 1, 1969 64 (2) 504-511; https://doi.org/10.1073/pnas.64.2.504
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    AXOPLASMIC TRANSPORT IN THE CRAYFISH NERVE CORD
    H. L. Fernandez and P. F. Davison
    PNAS October 1, 1969 64 (2) 512-519; https://doi.org/10.1073/pnas.64.2.512

Biological Sciences: Microbiology

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    COMPLEMENT COMPONENTS REQUIRED FOR VIRUS NEUTRALIZATION BY EARLY IMMUNOGLOBULIN ANTIBODY
    William D. Linscott and Warren E. Levinson
    PNAS October 1, 1969 64 (2) 520-527; https://doi.org/10.1073/pnas.64.2.520
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    STRUCTURE OF THE PEPTIDOGLYCAN OF BACTERIAL SPORES: OCCURRENCE OF THE LACTAM OF MURAMIC ACID
    A. D. Warth and J. L. Strominger
    PNAS October 1, 1969 64 (2) 528-535; https://doi.org/10.1073/pnas.64.2.528
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    PRELIMINARY ANALYSIS OF THE REQUIREMENTS FOR FUSION FROM WITHIN AND FUSION FROM WITHOUT BY NEWCASTLE DISEASE VIRUS
    Michael A. Bratt and William R. Gallaher
    PNAS October 1, 1969 64 (2) 536-543; https://doi.org/10.1073/pnas.64.2.536
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    NONPERMISSIVE INFECTIONS OF MAMMALIAN CELLS: SYNTHESIS OF INFLUENZA VIRUS GENOME IN HeLa CELLS
    R. A. Lerner and L. D. Hodge
    PNAS October 1, 1969 64 (2) 544-551; https://doi.org/10.1073/pnas.64.2.544

Biological Sciences: Psychology

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    AUDITORY SENSITIVITY IN THE BULLHEAD CATFISH (Ictalurus nebulosis)
    Burton A. Weiss, William F. Strother, and George M. Hartig
    PNAS October 1, 1969 64 (2) 552-556; https://doi.org/10.1073/pnas.64.2.552

Biological Sciences: Medical Sciences

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    THE OCCURRENCE OF SUBSTANCES IN HUMAN PLASMA CAPABLE OF INDUCING THE ENZYME δ-AMINOLEVULINATE SYNTHETASE IN LIVER CELLS
    Attallah Kappas, Chull S. Song, Shigeru Sassa, Richard D. Levere, and S. Granick
    PNAS October 1, 1969 64 (2) 557-564; https://doi.org/10.1073/pnas.64.2.557

Biological Sciences: Zoology

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    CORRELATED EFFECTS OF ECDYSONE AND NEUROSECRETION IN PUPARIUM FORMATION (PUPARIATION) OF FLIES
    Jan Zdarek and G. Fraenkel
    PNAS October 1, 1969 64 (2) 565-572; https://doi.org/10.1073/pnas.64.2.565

Biological Sciences: Genetics

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    A MECHANISM FOR GENETIC RECOMBINATION GENERATING ONE PARENT AND ONE RECOMBINANT
    Thierry Boon and Norton D. Zinder
    PNAS October 1, 1969 64 (2) 573-577; https://doi.org/10.1073/pnas.64.2.573
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    A MODEL RELATING GENE REPLICAS AND GENE REPRESSION TO PHENOTYPIC EXPRESSION AND VARIABILITY
    J. M. Rendel
    PNAS October 1, 1969 64 (2) 578-583; https://doi.org/10.1073/pnas.64.2.578
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    THE GENETIC CODE AND ERROR TRANSMISSION
    C. Alff-Steinberger
    PNAS October 1, 1969 64 (2) 584-591; https://doi.org/10.1073/pnas.64.2.584
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    HETEROGENEOUS CIRCULAR DNA ELEMENTS IN VEGETATIVE CULTURES OF Bacillus megaterium
    Bruce C. Carlton and Donald R. Helinski
    PNAS October 1, 1969 64 (2) 592-599; https://doi.org/10.1073/pnas.64.2.592
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    MOLECULAR HYBRIDIZATION OF RADIOACTIVE DNA TO THE DNA OF CYTOLOGICAL PREPARATIONS
    Mary Lou Pardue and Joseph G. Gall
    PNAS October 1, 1969 64 (2) 600-604; https://doi.org/10.1073/pnas.64.2.600

Biological Sciences: Biochemistry

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    ISOLATION OF β-GLUCAN SYNTHETASE PARTICLES FROM PLANT CELLS AND IDENTIFICATION WITH GOLGI MEMBRANES
    Peter M. Ray, Terry L. Shininger, and Margery M. Ray
    PNAS October 1, 1969 64 (2) 605-612; https://doi.org/10.1073/pnas.64.2.605
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    STUDIES ON THE PROTEINS OF ΦX174, II. THE PROTEIN COMPOSITION OF THE ΦX COAT
    Ann B. Burgess
    PNAS October 1, 1969 64 (2) 613-617; https://doi.org/10.1073/pnas.64.2.613
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    ABNORMAL CIRCULAR DNA MOLECULES INDUCED BY ETHIDIUM BROMIDE IN THE KINETOPLAST OF Trypanosoma cruzi
    Guy Riou and Etienne Delain
    PNAS October 1, 1969 64 (2) 618-625; https://doi.org/10.1073/pnas.64.2.618
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    RNA SYNTHESIS IN CELLS INFECTED WITH HERPES SIMPLEX VIRUS, II. EVIDENCE THAT A CLASS OF VIRAL mRNA IS DERIVED FROM A HIGH MOLECULAR WEIGHT PRECURSOR SYNTHESIZED IN THE NUCLEUS
    Edward K. Wagner and Bernard Roizman
    PNAS October 1, 1969 64 (2) 626-633; https://doi.org/10.1073/pnas.64.2.626
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    THE RELATIONSHIP OF THE INFLUENZA VIRUS INHIBITORY ACTIVITY OF GLYCOPROTEINS TO THEIR MOLECULAR SIZE AND SIALIC ACID CONTENT
    Georg F. Springer, H. Gerhard Schwick, and Mary Ann Fletcher
    PNAS October 1, 1969 64 (2) 634-641; https://doi.org/10.1073/pnas.64.2.634
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    RIBOSOMAL RNA GENES IN BACTERIA: EVIDENCE FOR THE NATURE OF THE PHYSICAL LINKAGE BETWEEN 16S AND 23S RNA GENES Bacillus subtilis
    W. Colli and M. Oishi
    PNAS October 1, 1969 64 (2) 642-649; https://doi.org/10.1073/pnas.64.2.642
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    ACTIVE CENTER FRACTIONS FROM Rhodopseudomonas spheroides STRAIN Y. (DE KLERK)
    G. Jolchine, F. Reiss-Husson, and M. D. Kamen
    PNAS October 1, 1969 64 (2) 650-653; https://doi.org/10.1073/pnas.64.2.650
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    DISSOCIATION OF 70S RIBOSOMES: SOME PROPERTIES OF THE DISSOCIATING FACTOR FROM Bacillus stearothermophilus AND Escherichia coli
    Ernesto G. Bade, Nelida S. González, and Israel D. Algranati
    PNAS October 1, 1969 64 (2) 654-660; https://doi.org/10.1073/pnas.64.2.654
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    BEHAVIOR INDUCTION BY BRAIN EXTRACTS: A COMPARISON OF TWO PROCEDURES
    Frank Rosenblatt
    PNAS October 1, 1969 64 (2) 661-668; https://doi.org/10.1073/pnas.64.2.661
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    THE POLYAMINE CONTENT OF THE tRNA OF E. coli
    Seymour S. Cohen, Sophronia Morgan, and Ellen Streibel
    PNAS October 1, 1969 64 (2) 669-676; https://doi.org/10.1073/pnas.64.2.669
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    DAILY RHYTHMS IN HEPATIC POLYSOME PROFILES AND TYROSINE TRANSAMINASE ACTIVITY: ROLE OF DIETARY PROTEIN
    Bette Fishman, Richard J. Wurtman, and Hamish N. Munro
    PNAS October 1, 1969 64 (2) 677-682; https://doi.org/10.1073/pnas.64.2.677
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    ESTEROLYTIC ACTIVITY OF ELASTASE
    Patrick Geneste and Myron L. Bender
    PNAS October 1, 1969 64 (2) 683-685; https://doi.org/10.1073/pnas.64.2.683
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    REPRESSION-DEPENDENT ALTERATION OF AN ARGININE ENZYME IN Escherichia coli
    Thomas Leisinger, Ruth H. Vogel, and Henry J. Vogel
    PNAS October 1, 1969 64 (2) 686-692; https://doi.org/10.1073/pnas.64.2.686
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    RIBONUCLEASE V OF ESCHERICHIA COLI, I. DEPENDENCE ON RIBOSOMES AND TRANSLOCATION
    Michihiko Kuwano, Catherine Ning Kwan, David Apirion, and David Schlessinger
    PNAS October 1, 1969 64 (2) 693-700; https://doi.org/10.1073/pnas.64.2.693
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    THE REPLICATION OF THE RING-SHAPED DNA OF POLYOMA VIRUS, I. IDENTIFICATION OF THE REPLICATIVE INTERMEDIATE
    Pierre Bourgaux, Danielle Bourgaux-Ramoisy, and Renato Dulbecco
    PNAS October 1, 1969 64 (2) 701-708; https://doi.org/10.1073/pnas.64.2.701
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    STUDIES ON THE FORMATION OF TRANSFER RIBONUCLEIC ACID-RIBOSOME COMPLEXES, XI. ANTIBIOTIC EFFECTS ON PHENYLALANYL-OLIGONUCLEOTIDE BINDING TO RIBOSOMES
    Sidney Pestka
    PNAS October 1, 1969 64 (2) 709-714; https://doi.org/10.1073/pnas.64.2.709
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    A CONCEPT OF THREE LIGHT REACTIONS IN PHOTOSYNTHESIS BY GREEN PLANTS
    David B. Knaff and Daniel I. Arnon
    PNAS October 1, 1969 64 (2) 715-722; https://doi.org/10.1073/pnas.64.2.715
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    CONTROL OF TYROSINE AMINOTRANSFERASE SYNTHESIS IN TISSUE CULTURE BY A FACTOR IN SERUM
    Thomas D. Gelehrter and Gordon M. Tomkins
    PNAS October 1, 1969 64 (2) 723-730; https://doi.org/10.1073/pnas.64.2.723
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    PHOTOHYDRATION OF URIDINE IN THE RNA OF COLIPHAGE R17, I. REDUCTIVE ASSAY FOR URIDINE PHOTOHYDRATION
    P. A. Cerutti, N. Miller, M. G. Pleiss, J. F. Remsen, and W. J. Ramsay
    PNAS October 1, 1969 64 (2) 731-738; https://doi.org/10.1073/pnas.64.2.731
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    NUCLEAR AND MITOCHONDRIAL DNA FROM WILD-TYPE AND PETITE YEAST: CIRCULARITY, LENGTH, AND BUOYANT DENSITY
    Foster E. Billheimer and Charlotte J. Avers
    PNAS October 1, 1969 64 (2) 739-746; https://doi.org/10.1073/pnas.64.2.739
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    ON THE REPLICATION OF INCOMPLETE CHROMOSOMES OF PHAGE T4
    G. Mosig and R. Werner
    PNAS October 1, 1969 64 (2) 747-754; https://doi.org/10.1073/pnas.64.2.747
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    STABLE FREE-RADICAL FORMS OF PLASMA PROTEINS OR SIMPLER RELATED STRUCTURES WHICH INDUCE BRAIN EXCITATORY EFFECTS
    B. David Polis, John Wyeth, Leonide Goldstein, and Joe Graedon
    PNAS October 1, 1969 64 (2) 755-762; https://doi.org/10.1073/pnas.64.2.755
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    MICROCALORIMETRIC STUDIES ON THE FORMATION OF MAGNESIUM COMPLEXES OF ADENINE NUCLEOTIDES
    J. P. Belaich and J. C. Sari
    PNAS October 1, 1969 64 (2) 763-770; https://doi.org/10.1073/pnas.64.2.763
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    AMINO ACID SEQUENCE OF SALMON ULTIMOBRANCHIAL CALCITONIN
    H. D. Niall, H. T. Keutmann, D. H. Copp, and J. T. Potts Jr.
    PNAS October 1, 1969 64 (2) 771-778; https://doi.org/10.1073/pnas.64.2.771
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    DNA-DEPENDENT SYNTHESIS OF RNA BY Escherichia coli RNA POLYMERASE: RELEASE AND REINITIATION OF RNA CHAINS FROM DNA TEMPLATES
    Umadas Maitra and Fred Barash
    PNAS October 1, 1969 64 (2) 779-786; https://doi.org/10.1073/pnas.64.2.779
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    THE NERVE GROWTH FACTOR: PURIFICATION AS A 30,000-MOLECULAR-WEIGHT PROTEIN
    Vincenzo Bocchini and Pietro U. Angeletti
    PNAS October 1, 1969 64 (2) 787-794; https://doi.org/10.1073/pnas.64.2.787
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    FACTORS INFLUENCING PREMATURE INDUCTION OF UDP-GLUCURONYLTRANSFERASE ACTIVITY IN CULTURED CHICK EMBRYO LIVER CELLS
    Brian R. Skea and Andrew M. Nemeth
    PNAS October 1, 1969 64 (2) 795-802; https://doi.org/10.1073/pnas.64.2.795
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