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CYANAMIDE: A POSSIBLE KEY COMPOUND IN CHEMICAL EVOLUTION

Description: The prebiotic synthesis of phosphorus-containing compounds--such as nucleotides and polynucleotides--would require both a geologically plausible source of the element and pathways for its incorporation into chemical systems on the primitive Earth. The mineral apatite, which is the only significant source of phosphate on Earth, has long been thought to be problematical in this respect due to its low solubility and reactivity. However, in the last decade or so, at least two pathways have been dem… more
Date: May 1, 1964
Creator: Steinman, Gary; Lemmon, Richard M. & Calvin, Melvin
Partner: UNT Libraries Government Documents Department
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Nuclear spectroscopy with direct relations [Part] 2. Proceedings

Description: The Symposium on Nuclear Spectroscopy with Direct Reactions, sponsored and organized by Argonne National Laboratory under the auspices of the U. S. Atomic Energy Commission, was held on 9-11 March 1964 at the Center for Continuing Education, University of Chicago. The present volume contains the invited papers along with abstracts or summaries of the few short papers selected for their special relevance to the topics of the invited lecturers . Edited versions of the discussions are also include… more
Date: March 1, 1964
Creator: Throw, F. E.
Partner: UNT Libraries Government Documents Department
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$pi$$sup +$p CROSS SECTIONS BELOW 4 Gev

Description: No Description Available.
Date: January 1, 1964
Creator: James, F. E.; Johnson, J. A. & Kraybill, H. L.
Partner: UNT Libraries Government Documents Department
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GENERALIZATION OF THE ACTIVATED COMPLEX THEORY OF REACTION RATES. II. CLASSICAL MECHANICAL TREATMENT

Description: In its usual classical form activated complex theory assumes a particular expression for the kinetic energy of the reacting system one associated with a rectilinear motion along the reaction coordinate. The derivation of the rate expression given in the present paper is based on the general kinetic energy expression.
Date: November 1, 1964
Creator: Marcus, R.A.
Partner: UNT Libraries Government Documents Department
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GENERALIZATION OF THE ACTIVATED COMPLEX THEORY OF REACTION RATES. I. QUANTUM MECHANICAL TREATMENT

Description: In its usual form activated complex theory assumes a quasi-equilibrium between reactants and activated complex, a separable reaction coordinate, a Cartesian reaction coordinate, and an absence of interaction of rotation with internal motion in the complex. In the present paper a rate expression is derived without introducing the Cartesian assumption. The expression bears a formal resemblance to the usual one and reduces to it when the added assumptions of the latter are introduced. The new equa… more
Date: November 1, 1964
Creator: Marcus, R.A.
Partner: UNT Libraries Government Documents Department
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