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This lecture examines Inferno IV -VII. Dante's Limbo, modeled on the classical locus amoenus, is identified as a place of repose and vulnerability. Here, in fact, among the poets of antiquity, the pilgrim falls prey to poetic hubris by joining in their ranks. The pilgrim is faced with the consequences of his poetic vocation when he descends to the circle of lust (Inferno V), where Francesca da Rimini, in her failure to distinguish romance ...more
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In this lecture, Professor Diamond continues her conversation on the heart, reviewing its chambers and discussing heart valves, heart sounds, cardiac cycle, pathways of the blood through the heart, conduction mechanism, and nerve supply. She first describes distinguishing characteristics of the ventricles, such as the thicker walls of the left ventricle. She also details the atrioventricular (AV) and semilunar (SL) valves that control bl...more
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A General Education Course introducing non-Life Science Majors to the Life Sciences, challenging them to explore and understand important issues in the field. Topics include chemistry of life, genetics, physiology, evolution, and ecology -- all explored in lecture and debates. Professor Jay Phelan has a Ph.D. in Biology from Harvard, and masters and bachelors degrees from UCLA and Yale. Some clips and images may have been blurred or rem...more
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In this lecture, Professor Diamond continues her review of the digestive system by describing the small intestine. She begins by describing the start and end points of the small intestine, the pyloric sphincter and the ileocecal valve, and demonstrating the 20 foot length. She discusses the sections of the small intestine including duodenum, jejunum, and ileum and how villi increase surface area. She discusses several unique characteri...more
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In this lecture, Professor Diamond begins an in depth discussion of the cardiac system. She notes how the unique structure of cardiac muscle as intercalated disks enables the transfer of electrical impulses through the cardiac muscle. Professor Diamond describes the differences between systemic and pulmonary circulation. She introduces the components of the heart, discussing the right and left atrium and right and left ventricle, and de...more
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Introduction to General Psychology
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The concept of "general will" is considered Rousseau's most important contribution to political science. It is presented as the answer to the gravest problems of civilization, namely, the problems of inequality, amour-propre, and general discontent. The social contract is the foundation of the general will and the answer to the problem of natural freedom, because nature itself provides no guidelines for determining who should rule. The lec...more
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Lecture 1 of Leonard Susskind's Modern Physics concentrating on General Relativity. Recorded September 22, 2008 at Stanford University.
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The nineteenth century in Europe is, in many ways, synonymous with the rise of the bourgeoisie. It is misleading, however, to consider this newly dominant middle class as a homogenous group; rather, the century may be more accurately described in terms of the rise of plural middle classes. While the classes comprising this group were united by their search for power based on property rights rather than hereditary privilege, they were other...more
