- Emilio Q. Daddario
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A Challenge to the Scientific Community
PNAS 1968 59: 305-312.
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- G. Gamow
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Numerology of the Constants of Nature
PNAS 1968 59: 313-318.
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- Donald K. Harriss and Joseph O. Hirschfelder
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An Interative Procedure for the Solution of Perturbation Equations
PNAS 1968 59: 319-325.
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- John Carstoiu
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Fundamental Equations of Electromagnetodynamics of Fluids: Various Consequences
PNAS 1968 59: 326-331.
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- J. Gerratt and W. N. Lipscomb
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Spin-Coupled Wave Functions for Atoms and Molecules
PNAS 1968 59: 332-335.
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- Sung Wan Kim, Mu Shik Jhon, Taikyue Ree, and Henry Eyring
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The Surface Tension of Binary Liquid Mixtures
PNAS 1968 59: 336-342.
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- Gordon T. Whyburn
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Retracting Multifunctions
PNAS 1968 59: 343-348.
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- A. P. Calderon
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Ergodic Theory and Translation-Invariant Operators
PNAS 1968 59: 349-353.
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- H. Garland and W. C. Hsiang
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A Square Integrability Criterion for the Cohomology of Arithmetic Groups
PNAS 1968 59: 354-360.
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- Haskell P. Rosenthal
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On Quasi-Complemented Subspaces of Banach Spaces
PNAS 1968 59: 361-364.
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- Hubert Halkin and Edward C. Hendricks
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Subintegrals of Set-Valued Functions with Semianalytic Graphs
PNAS 1968 59: 365-367.
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- Stephen Grossberg
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Some Nonlinear Networks Capable of Learning a Spatial Pattern of Arbitrary Complexity
PNAS 1968 59: 368-372.
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- A. V. Balakrishnan
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On a New Computing Technique in Optimal Control Theory and the Maximum Principle
PNAS 1968 59: 373-375.
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- Takuma Tanada
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A Rapid Photoreversible Response of Barley Root Tips in the Presence of 3-indoleacetic Acid
PNAS 1968 59: 376-380.
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- David P. C. Lloyd
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Note on Convergence of Pyramidal and Primary Afferent Impulses in the Spinal Cord of the Cat
PNAS 1968 59: 381-384.
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- A. C. Hollinshead, T. C. Alford, S. Oroszlan, H. C. Turner, and R. J. Huebner
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Separation and Description of Adenovirus 12-Induced Cellular Antigens Which React with Hamster Tumor Antisera
PNAS 1968 59: 385-392.
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- E. Merler and C. A. Janeway
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Immunochemical Identification of Cytophilic Antibody in Human Lymphocytes
PNAS 1968 59: 393-397.
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- Satya Prakash and R. C. Lewontin
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A Molecular Approach to the Study of Genic Heterozygosity in Natural Populations, III. Direct Evidence of Coadaptation in Gene Arrangements of Drosophila
PNAS 1968 59: 398-405.
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- E. Baltus, J. E. Edstrom, M. Janowski, J. Hanocq-Quertier, R. Tencer, and J. Brachet
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Base Composition and Metabolism of Various RNA Fractions in Acetabularia Mediterranea
PNAS 1968 59: 406-413.
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- Michael Menaker
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Extraretinal Light Perception in the Sparrow, I. Entrainment of the Biological Clock
PNAS 1968 59: 414-421.
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- Leland H. Hartwell and Calvin S. McLaughlin
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Mutants of Yeast with Temperature-Sensitive Isoleucyl-tRNA Synthetases
PNAS 1968 59: 422-428.
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- F. Guerrini and M. S. Fox
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Genetic Heterozygosity in Pneumococcal Transformation
PNAS 1968 59: 429-436.
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- Robert P. Erickson, Salome Gluecksohn-Waelsch, and Carl F. Cori
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Glucose-6-Phosphatase Deficiency Caused by Radiation-Induced Alleles at the Albino Locus in the Mouse
PNAS 1968 59: 437-444.
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- Bernard Mach, Hans Koblet, and Denise Gros
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Chemical Identification of Specific Immunoglobulins as the Product of a Cell-Free System from Plasmocytoma Tumors
PNAS 1968 59: 445-452.
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- Barbara S. Vold and Paul S. Sypherd
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Modification in Transfer RNA during the Differentiation of Wheat Seedlings
PNAS 1968 59: 453-458.
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- Loren Snyder and E. Peter Geiduschek
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In vitro Synthesis of T4 Late Messenger RNA
PNAS 1968 59: 459-466.
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- John Carbon and James B. Curry
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A Change in the Specificity of Transfer RNA after Partial Deamination with Nitrous Acid
PNAS 1968 59: 467-474.
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- Osamu Shimomura and Frank H. Johnson
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Light-Emitting Molecule in a New Photoprotein Type of Luminescence System from the Euphausid Shrimp Meganyctiphanes Norvegica
PNAS 1968 59: 475-477.
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- Charles R. Cantor
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The Extent of Base Pairing in 5S Ribosomal RNA
PNAS 1968 59: 478-483.
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- Ulrich Hopfer, Albert L. Lehninger, and Thomas E. Thompson
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Protonic Conductance across Phospholipid Bilayer Membranes Induced by Uncoupling Agents for Oxidative Phosphorylation
PNAS 1968 59: 484-490.
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- Keith Brew, Thomas C. Vanaman, and Robert L. Hill
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The Role of
 -Lactalbumin and the a Protein in Lactose Synthetase: A Unique Mechanism for the Control of a Biological Reaction
PNAS 1968 59: 491-497.
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- Bert L. Vallee and Robert J. P. Williams
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Metalloenzymes: The Entatic Nature of their Active Sites
PNAS 1968 59: 498-505.
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- T. S. Eikhom, Darleen J. Stockley, and S. Spiegelman
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Direct Participation of a Host Protein in the Replication of Viral RNA in vitro
PNAS 1968 59: 506-512.
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- Mamoru Watanabe and J. Thomas August
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Identification of Guanosine Triphosphate as the 5'-Terminus of RNA from Bacteriophage Qß and R23
PNAS 1968 59: 513-518.
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- Robert E. Humphreys and Joseph S. Fruton
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The Substrate Binding Site of Pepsin
PNAS 1968 59: 519-525.
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- Reinhold Benesch, Ruth E. Benesch, and Chi Ing Yu
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Reciprocal Binding of Oxygen and Diphosphoglycerate by Human Hemoglobin
PNAS 1968 59: 526-532.
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- James H. Strauss, Boyce W. Burge, E. R. Pfefferkorn, and J. E. Darnell
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Identification of the Membrane Protein and ``Core'' Protein of Sindbis Virus
PNAS 1968 59: 533-537.
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- Franco Ajmar, Barbara Scharrer, Fred Hashimoto, and Paul E. Carson
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Interrelation of Stromal NAD(P)ase and Human Erythrocytic 6-Phosphogluconic Dehydrogenase
PNAS 1968 59: 538-545.
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- Robert M. Swenson and Milton Kern
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The Synthesis and Secretion of
 -Globulin by Lymph Node Cells, III. The Slow Acquisition of the Carbohydrate Moiety of -Globulin and Its Relationship to Secretion
PNAS 1968 59: 546-553.
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- Jean Lucas-Lenard and Anne-Lise Haenni
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Requirement of Guanosine 5'-Triphosphate for Ribosomal Binding of Aminoacyl-sRNA
PNAS 1968 59: 554-560.
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- Alfred W. Alberts and P. R. Vagelos
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Acetyl Coa Carboxylase, I. Requirement for two Protein Fractions
PNAS 1968 59: 561-568.
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- K. K. Tewari and S. G. Wildman
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Function of Chloroplast DNA, I. Hybridization Studies Involving Nuclear and Chloroplast DNA with RNA from Cytoplasmic (80S) and Chloroplast (70S) Ribosomes
PNAS 1968 59: 569-576.
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- Rolf Knippers, Tohru Komano, and Robert L. Sinsheimer
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The Process of Infection with Bacteriophage
 X174, XXI. Replication and Fate of the Replicative Form
PNAS 1968 59: 577-581.
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- William V. Zucker and Herbert M. Schulman
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Stimulation of Globin-Chain Initiation by Hemin in the Reticulocyte Cell-Free System
PNAS 1968 59: 582-589.
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- Stuart M. Heywood and Alexander Rich
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In vitro Synthesis of Native Myosin, Actin, and Tropomyosin Frome Mbryonic Chick Polyribosomes
PNAS 1968 59: 590-597.
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- Reiji Okazaki, Tuneko Okazaki, Kiwako Sakabe, Kazunori Sugimoto, and Akio Sugino
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Mechanism of DNA Chain Growth, I. Possible Discontinuity and Unusual Secondary Structure of Newly Synthesized Chains
PNAS 1968 59: 598-605.
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- Juan M. Ramirez, Francisca F. Del Campo, and Daniel I. Arnon
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Photosynthetic Phosphorylation as Energy Source for Protein Synthesis and Carbon Dioxide Assimilation by Chloroplasts
PNAS 1968 59: 606-612.
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- Elvin A. Kabat
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Unique Features of the Variable Regions of Bence Jones Proteins and their Possible Relation to Antibody Complementarity
PNAS 1968 59: 613-619.
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- Walo Leuzinger, A. L. Baker, and Elsa Cauvin
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Acetylcholinesterase, II. Crystallization, Absorption Spectra, Isoionic Point
PNAS 1968 59: 620-623.
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- John T. Penniston, Robert A. Harris, Junpei Asai, and David E. Green
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The Conformational Basis of Energy Transformations in Membrane Systems, I. Conformational Changes in Mitochondria
PNAS 1968 59: 624-631.
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- E. V. Jensen, T. Suzuki, T. Kawashima, W. E. Stumpf, P. W. Jungblut, and E. R. DeSombre
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A Two-Step Mechanism for the Interaction of Estradiol with Rat Uterus
PNAS 1968 59: 632-638.
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- J. William Schopf, Keith A. Kvenvolden, and Elso S. Barghoorn
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Amino Acids in Precambrian Sediments: An Assay
PNAS 1968 59: 639-646.
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