atomic order
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The lecture opens with tricks ("Z-effective" and "Self Consistent Field") that allow one to correct approximately for the error in using orbitals that is due to electron repulsion. This error is hidden by naming it "correlation energy." Professor McBride introduces molecules by modifying J.J. Thomson's Plum-Pudding model of the atom to rationalize the form of molecular orbitals. There is a close analogy in form between the molecular orbita...more
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Beta-Gamma(bank-post office), order statistics, conditional expectation, two envelope paradox.
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Electronegativity, metallic nature and atomic radius.
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This lecture begins by applying the united-atom "plum-pudding" view of molecular orbitals, introduced in the previous lecture, to more complex molecules. It then introduces the more utilitarian concept of localized pairwise bonding between atoms. Formulating an atom-pair molecular orbital as the sum of atomic orbitals creates an electron difference density through the cross product that enters upon squaring a sum. This "overlap" term is th...more
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In order for Social Security to work, people have to believe there's some possibility that the world will last forever, so that each old generation will have a young generation to support it. The overlapping generations model, invented by Allais and Samuelson but here augmented with land, represents such a situation. Financial equilibrium can again be reduced to general equilibrium. At first glance it would seem that the model requires a s...more
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This lecture begins a series describing the development of organic chemistry in chronological order, beginning with the father of modern chemistry, Lavoisier. The focus is to understand the logic of the development of modern theory, technique and nomenclature so as to use them more effectively. Chemistry begins before Lavoisier's "Chemical Revolution," with the practice of ancient technology and alchemy, and with discoveries like those of ...more
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Professor Mazzotta continues his discussion of the Heaven of the Sun (Paradise X-IV), where the earthly disputes between the Franciscan and Dominican orders give way to mutual praise. The tribute St. Thomas pays to the founder of the Franciscan order (Paradise XI) is repaid by St. Bonaventure through his homage to St. Dominic (Paradise XII). The chiasmic structure of these cantos is reinforced by the presence of Nathan and Joachim of Flora...more
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The Apostle Paul's description of the Jewish Law in his letter to the Galatians demotes from being an expression of Jewish faith to an object of idolatry and one that imprisons those who follow it. Paul is careful to nuance this position, however, in his letter to the Romans. In Romans, it seems that Paul is defending himself against charges of being antinomian. Perhaps Paul treads carefully in order to ensure that his deliverance of a don...more
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Professor Sylvia Ceyer devotes this lecture to a discussion of the periodic table, beginning with its history. Period trends are covered, including ionization energy, electron affinity, elecrtonegativity, and atomic sizes. The lecture concludes with isoelectronicity, where two molecular entities have the same number of valence electrons and the same structure, regardless of the nature of the elements involved.
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The lecture focuses exclusively on one argument for the immortality of the soul from Plato's Phaedo, namely, "the argument from simplicity." Plato suggests that in order for something to be destroyed, it must have parts, that is, it must be possible to "take it apart." Arguing that the soul is simple, that it does not have parts, Plato believes that it would logically follow that the soul is indestructible.
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Speier and best-selling author Deborah Collins Stephens talk about politics within public and private sectors. Speier discusses how the freedom to explore issues is absent in the private sector. Stephens talks about how power plays an important role in the politics of public sectors. She stresses that it is necessary for people to have a lot of will power in order for them to rise above in the public sector.
