Most Popular Books by Evan Thomas

Notebook containing "Sketch of My Life," by Thomas Henry Evans. Also contains a sketch of the life of his father, Evan Thomas (1763-1798), with drafts of Henry Evan Thomas''s letters to the editor of "The Presbyterian," dated Jan. 1868 - Jan. 1870.

The history of the clarinet on the island of Puerto Rico has not been well documented. Preliminary research for this document aimed to catalog every solo clarinet work by Puerto Rican composers and define the history of the clarinet in Puerto Rico. Further research revealed the name of one intriguing individual who appeared time and time again and seemed worthy of further research. Juan Rios Ovalle (1863-1928) was a clarinetist and composer who lived his entire life in Ponce, Puerto Rico. The Puerto Rican General Archive houses a collection of compositions by Juan Rios Ovalle; however, no solo clarinet works exist. There is no way to know whether or not this is his complete list of works because he lived in Puerto Rico during a time of social and political upheaval. It is very possible that some pieces may have been lost or destroyed in the midst of the Spanish American War or World War I. While there is not a lot of written documentation on the life of Juan Rios Ovalle, it is possible to piece together the story of a prominent and influential Puerto Rican musician. An established list of works is included in this document along with an analysis of how Juan Rios Ovalle used the clarinet in his compositions. Rios Ovalle favored a genre of music called “danza,” which simply translates to “dance” in English. It is characterized by the juxtaposition of triple and duple rhythms, rich harmonies, rigid form, and a Puerto Rican spirit. There are many excellent publications on the danza. This document is not intended to describe in detail the danza and its history, but rather to provide readers unfamiliar with this musical form a description of the significance of this music. The overriding purpose of this document is to provide the clarinet world an opportunity to experience a genre of music that is not widely known. The document includes three danzas arranged for Bb clarinet and piano, a re-created orchestral score based on original manuscript parts, and a detailed bibliography of works by Juan Rios Ovalle. The three selected danzas arranged by this writer have varying levels of separation from what is known as the standard danza. Two of the arranged pieces were taken from a solo piano part and the third piece was arranged using a combination of a piano part and original orchestral parts.

Cognitive abilities have been invoked to do much work in externalist epistemology. An ability condition (sometimes in conjunction with a separate, anti-luck condition) is seen to be key in satisfying direction-of-fit and modal stability intuitions which attach to the accrual of positive epistemic status to doxastic attitudes. While the notion of ability has been given some extensive treatment in the literature (especially John Greco, Alan Millar and Ernest Sosa), the implications for these abilities being particularly cognitive ones has been given less attention. To rectify this oversight, I examine the debate over the nature of cognition from philosophy of cognitive science, paying particular attention to the debate between defenders of internalist theories (Fred Adams, Kenneth Aizawa and Rob Rupert) and externalist theories (so-called "extended mind" positions). Armed with substantive accounts of cognition, I argue that the epistemological externalist''s obligation to repudiate epistemological internalism forces her to adopt some sort of externalist account of cognition.

A nuclear-structure campaign has been initiated to investigate the isotopes of Hg around mass 199. To date, 199Hg provides the most stringent limit on an atomic electric dipole moment (EDM). Standard Model predictions of the EDM in 199Hg are many orders of magnitude below current experimental reach. There are, however, many models beyond the Standard Model, such as multiple-Higgs theories and supersymmetry, that generally predict much larger EDMs within experimental reach. The observation of a large permanent EDM would represent a clear signal of CP violation from new physics outside the Standard Model. Theoretical nuclear-structure calculations for 199Hg are challenging, and give varied predictions for the excited-state spectrum. Understanding the E2 and E3 strengths in 199Hg will make it possible to develop a nuclear-structure model for the Schiff strength based on these matrix elements, and thereby constrain present models that predict the contribution of octupole collectivity to the Schiff moment of the nucleus. One of the most direct ways of measuring the matrix elements connecting the ground state to excited states is through inelastic hadron scattering. The high level density of a heavy odd-A nucleus like 199Hg makes a measurement extremely challenging. Complementary information can, however, be determined for states in the neighbouring even-even isotopes of 198Hg and 200Hg, and single-nucleon transfer reactions on targets of even-even isotopes of Hg can yield important information on the single-particle nature of 199Hg. The work presented here is the result of two experiments which used a 22-MeV deuteron beam incident on an isotopically enriched target of 200Hg32S. These experiments were performed using the Q3D magnetic spectrograph at the Maier-Leibnitz Laboratory, in Garching, Germany. The first experiment was an inelastic deuteron scattering experiment, 200Hg(d,d'')200Hg, populating 97 states up to an excitation energy of 4.2 MeV. Fifty-four states were newly discovered. Deformation parameters were extracted through coupled-channel calculations with global optical-model potential (OMP) parameter sets. The total B(E3; 0+ to 3-) strength in this region was estimated to be 0.55+0.12-0.18 e2b3, where the reported errors represent the upper and lower limits. The second experiment was a single-nucleon transfer reaction into 199Hg, 200Hg(d,t)199Hg, up to an excitation energy of 3 MeV. In total, 91 excited levels were identified, including fifty newly observed levels in this work. Spin-parity assignments and spectroscopic factors were extracted through distorted-wave Born approximation calculations with global OMP sets. The results from these two experiments are presented and further discussed in this thesis.

书名原文:The wise men six friends and the world they made