196,086 research outputs found
Fonds Michel Trebitsch (IHTP)
No full textArchives orales de Michel Trebitsch. Un premier corpus réunit les entretiens de Jean Bruhat avec Michel Trebitsch, réalisés pour l'écriture de son livre Il n’est jamais trop tard. Souvenirs, entre le 24 mars et le 20 août 1981, auxquels s'ajoutent deux autres entretiens enregistrés en 1982 avec Henri Fiszbin et François Hincker (entretiens ayant comme sujet la personne de Jean Bruhat). Suivent des entretiens avec Henri Lefebvre, Georges Poisson et Michel Vovelle ainsi que 4 enregistrements réalisés lors du colloque Histoire au présent-Sources, organisé en 1985.Enregistrements originaux conservés à la Bibliothèque nationale de France: description consultable en ligne sur le catalogue "Archives et manuscrits" (http://archivesetmanuscrits.bnf.fr/
Dans l'train d'huit heur's vingt Un beau matin [first line]
No full textstrophicpiano and voiceads on back cover for Marcel Labbe stockJohns Hopkins University, Levy Sheet Music Collection, Box
057, Item 078Paroles de H. Darsay & A. Trebitsch. Musique de Henri Waiss
Dans l'train d'huit heur's vingt Un beau matin [first line]
No full textstrophicpiano and voiceads on back cover for Marcel Labbe stockJohns Hopkins University, Levy Sheet Music Collection, Box
057, Item 078Paroles de H. Darsay & A. Trebitsch. Musique de Henri Waiss
La "révolution pour l'ordre": la pensée de droite et les philosophies cycliques de l'histoire dans l'entre-deux-guerres
No full textIl saggio prende in esame l'idea di rivoluzione per l'ordine nella destra del XX secolo in relazione con le filosofie cicliche della storia.The essay deals with the topic of revolution for the order in the right of XXth century in relation with the cyclical philosophies of history
Reionization with galaxies and active galactic nuclei
Get PDFIn this work we investigate the properties of the sources that reionized the intergalactic medium (IGM) in the high-redshift Universe. Using a semi-Analytical model aimed at reproducing galaxies and black holes in the first ∼1.5 Gyr of the Universe, we revisit the relative role of star formation and black hole accretion in producing ionizing photons that can escape into the IGM. Both star formation and black hole accretion are regulated by supernova feedback, resulting in black hole accretion being stunted in low-mass haloes. We explore a wide range of combinations for the escape fraction of ionizing photons (redshift-dependent, constant, and scaling with stellar mass) from both star formation () and AGN () to find: (i) the ionizing budget is dominated by stellar radiation from low stellar mass () galaxies at z > 6 with the AGN contribution (driven by black holes in galaxies) dominating at lower redshifts; (ii) AGN only contribute to the cumulative ionizing emissivity by z = 4 for the models that match the observed reionization constraints; (iii) if the stellar mass dependence of is shallower than , at z < 7 a transition stellar mass exists above which AGN dominate the escaping ionizing photon production rate; (iv) the transition stellar mass decreases with decreasing redshift. While AGN dominate the escaping emissivity above the knee of the stellar mass function at z ∼6.8, they take-over at stellar masses that are a tenth of the knee mass by z = 4
Super-Eddington accretion and feedback from the first massive seed black holes
No full textSuper-Eddington accretion on to massive black hole seeds may be commonplace in the early Universe, where the conditions exist for rapid accretion. Direct-collapse black holes are often invoked as a possible solution to the observation of supermassive black holes (SMBHs) in the pre-reionization Universe. We investigate here how feedback, mainly in the form of bipolar jets, from super-Eddington accreting seed black holes will affect their subsequent growth. We find that, nearly independently of the mass loading of the bipolar jets, the violent outflows generated by the jets evacuate a region of approximately 0.1 pc surrounding the black hole seed. However, the jet outflows are unable to break free of the halo and their impact is limited to the immediate vicinity of the black hole. The outflows suppress any accretion for approximately a dynamical time. The gas then cools, recombines, and falls back to the centre, where high accretion rates are again observed. The overall effect is to create an effective accretion rate with values of between 0.1 and 0.5 times the Eddington rate. If this episodic accretion rate is maintained for order 500 million years, then the black hole will increase in mass by a factor of between 3 and 300 but far short of the factor of 104 required for the seeds to become the SMBHs observed at z > 6. Therefore, direct-collapse black holes born into atomic cooling haloes and which experience strong negative mechanical feedback will require external influences (e.g. rapid major mergers with other haloes) to promote efficient accretion and reach SMBH masses within a few hundred million years
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
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