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Author, Dr. Paul Wehr. c. 1980
No full textDr. Paul Wehr, as he appeared c. 1980. Dr. Wehr was a professor of history at UCF and the author of Like a Mustard Seed: the Slavia Settlement (1982 - Mickler Publishing House), a history of the early years of Slavia and St. Luke\u27s history.https://stars.library.ucf.edu/cfm-images/1413/thumbnail.jp
René Géronimo Favaloro : pioneer of Cardiac Surgery
Get PDFDr. René G. Favaloro moved to the Cleveland Clinic in 1962 and proceeded to reshape the face of cardiac surgery as we knew it. Together with his colleagues at the Cleveland Clinic, Drs. Effler, Sones, Proudfit, Groves, Sheldon and countless others, he contributed to the double internal mammary arterymyocardial implantation by the Vineberg method, and by May 1967, he reconstructed the right coronary artery by the saphenous vein graft interposition. These landmark procedures paved the way for the aorto-coronary saphenous vein bypass graft in October 1967. Many similar breakthroughs ensued, with the application of the bypass technique to the left coronary artery, the combination of coronary artery bypass graft with left ventricular reconstruction and valve repair/replacement and finally, by December, a double bypass to the right coronary artery and anterior descending branch of the left coronary artery. In June, 1971, Dr. Favaloro decided to leave the Cleveland Clinic and return to Argentina where he created a medical centre, a teaching unit, a research department and finally an Institute of Cardiology and Cardiovascular Surgery. This was his greatest personal ambition. Over and above his brilliant mind and craft, Dr. Favaloro was a man of integrity, courage, honesty and humility, whose name will never cease to reverberate throughout the history of medicine.peer-reviewe
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[TBAAL - Author's luncheon: Dr. C. Eve Lincoln]
No full textAudio from The Black Academy of Arts and Letters recorded during their Author's Luncheon with Dr. C. Eve Lincoln. The first part of the audio is an extended introduction to the author while the later half is Dr. Lincoln's speech
[TBAAL - Author's luncheon: Dr. C. Eve Lincoln]
No full textAudio from The Black Academy of Arts and Letters recorded during their Author's Luncheon with Dr. C. Eve Lincoln. The first part of the audio is an extended introduction to the author while the later half is Dr. Lincoln's speech
A 121.4dB DR, -109.8dB THD+N Capacitively-Coupled Chopper Class-D Audio Amplifier
No full textClass-D amplifiers (CDAs) are often used in audio applications due to their superior power efficiency. Due to the sensitivity of the human ear, a large dynamic range (DR) is desired, and audio DACs with up to 130dB DR are commercially available [1]. However, the DR of the CDAs they drive is typically much lower [2]-[4], mainly due to the thermal noise introduced by the input resistors of their resistive feedback networks. Reducing this resistance is difficult, as it reduces the CDA's input impedance and increases the required loop-filter capacitance. Alternatively, the CDA could be configured as a capacitively coupled chopper amplifier (CCCA), whose capacitive feedback network could then achieve low noise without reducing input impedance. However, the large PWM component present at its output would then saturate its input stage. By exploiting the inherent PWM filtering present in a feedback-after-LC architecture, this paper presents a capacitively coupled chopper CDA, resulting in significantly improved DR and THD+N. The prototype achieves 8V_RMS of integrated output noise (A-weighted), a 121.4dB DR, and -1 09.8dB THD+N while delivering a maximum of 15/26W into an 8/4Omega load with 93%/88% efficiency.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
Dr. Steele remembered as great teacher, friend and author
No full textArticle in the Johnson C. Smith Newsletter regarding the death of A.O. Steele
[Authors spring luncheon for "The Avenue", tape 2]
No full textVideo footage from The Black Academy of Arts and Letters recorded during Dr. C Eric Lincoln's authors' luncheon held on March 26th, 1988 on his book "The Avenue". The footage shows Dr. Lincoln speaking at a podium about his career as an author and his early works
In Search of an Integrated Logic of Conviction and Intention
No full textAccording to a two-level criterion for combination tests in the field of ordinary language (C-CT), moral 'ought'-sentences may be taken to imply 'I intend'-sentences partly semantically and partly pragmatically. If so, a trenchant linguistic analysis of the concept of moral obligation cannot do without a non-classical logic which allows to model these important kinds of ordinary-language implications by means of purely syntactical derivations. For this purpose, an integrated logic of conviction and intention has been tentatively devised by way of a doxastically, buletically, and pragmatically extended calculus of natural deduction. This system of buletic logic cannot even be launched without one or two derivation rules of deductive closedness. However, these very closedness rules appear to be responsible for buletic paradoxes which are analogous to paradoxes long since known from other, less exotic branches of logic but at first sight look much more virulent. After having scrutinized two potential strategies for coping with the paradoxes of buletic logic, finally we can convince ourselves that these paradoxes, as well as their familiar non-buletic counterparts, are but apparent paradoxes, provided we consistently lean on C-CT and do not let pragmatical considerations intrude into purely logical ones
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[Authors spring luncheon for "The Avenue", tape 2]
No full textVideo footage from The Black Academy of Arts and Letters recorded during Dr. C Eric Lincoln's authors' luncheon held on March 26th, 1988 on his book "The Avenue". The footage shows Dr. Lincoln speaking at a podium about his career as an author and his early works
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[Author's Luncheon with Dr. C. Eric Lincoln]
No full textAudio cassette from The Black Academy of Arts and Letters Records. The audio was recorded during an Author's Luncheon with speaker Dr. C. Eric Lincoln, author of several books, including sociological works such as The Black Church Since Frazier (1974) and Race, Religion and the Continuing American Dilemma (1984)
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