6,600 research outputs found

    Seismic data reveal eastern Black Sea Basin structure

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    Rifted continental margins are formed by progressive extension of the lithosphere. The development of these margins plays an integral role in the plate tectonic cycle, and an understanding of the extensional process underpins much hydrocarbon exploration. A key issue is whether the lithosphere extends uniformly, or whether extension varies\ud with depth. Crustal extension may be determined using seismic techniques. Lithospheric extension may be inferred from the waterloaded subsidence history, determined from\ud the pattern of sedimentation during and after rifting. Unfortunately, however, many rifted margins are sediment-starved, so the subsidence history is poorly known.\ud To test whether extension varies between the crust and the mantle, a major seismic experiment was conducted in February–March 2005 in the eastern Black Sea Basin (Figure 1), a deep basin where the subsidence history is recorded\ud by a thick, post-rift sedimentary sequence. The seismic data from the experiment indicate the presence of a thick, low-velocity zone, possibly representing overpressured sediments. They also indicate that the basement and\ud Moho in the center of the basin are both several kilometers shallower than previously inferred. These initial observations may have considerable impact on thermal models of the petroleum system in the basin. Understanding\ud the thermal history of potential source rocks is key to reducing hydrocarbon exploration risk. The experiment, which involved collaboration between university groups in the United Kingdom, Ireland, and Turkey, and BP and\ud Turkish Petroleum (TPAO), formed part of a larger project that also is using deep seismic reflection and other geophysical data held by the industry partners to determine the subsidence history and hence the strain evolution of\ud the basin

    The Sacramental Theory in John 19:26-27

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    About the author: Father Theodore Koehler, S.M., of the Seminaire Marianiste at the University of Fribourg, Switzerland, studied under Father Neubert

    Christian Insight

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    Very Rev . John A. Elbert, S.M., is Graduate Dean of Arts and Sciences, Professor of Philosophy, creator of the Interdisciplinary Seminar, former President of the University of Dayton. He is the author of a number of books

    Mary and American Protestants

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    About the author: Father William Cole, S.M., is Professor and director of graduate work in Theological Studies at the University of Dayton. He has long been associated with the Marian Library

    Overcoming the Obstacles to Counselling Research

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    The author of this article, Brother Marion F. Belka, S.M., is Vice President of St. Mary\u27s University in San Antonio, Texas, and President of the National Catholic Guidance Conference

    In Vivo Acticity of Bupropion at the Human Dopamine Transporter as Measured by Positron Emission Tomography

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    Article title: In vivo acticity of bupropion at the human dopamine transporter as measured by positron emission tomography. Reference: BPS7603 Journal title: Corresponding author: Dr. S.M. Learned-Coughlin First author: Dr. S.M. Learned-Coughlin Citation</p

    Direct numerical simulation of the flow around a wing section at moderate Reynolds numbers

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    A three dimensional direct numerical simulation has been performed to study the flow around the asymmetric NACA-4412 wing at a moderate chord Reynolds number (Rec = 400, 000) with an angle of attack of 5◦ . The flow case under investigation poses numerous challenges for a numerical method due to the wide range of scales and complicated flow physics induced by the geometry. The mesh is optimized and well resolved to account for such varying scales in the flow. An unsteady volume force is used to trip the flow to turbulence on both sides of the wing at 10% chord. Full turbulent statistics are computed on the fly to further investigate the complicated flow features around the wing. The present simulation shows the potential of high-order methods in simulating complex external flows at moderately high Reynolds numbers

    Unity of the World of Men

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    Very Reverend John A. Elbert, S.M., is the former Provincial Superior of the Cincinnati Province of the Society of Mary and was President of the University of Dayton from 1938 until 1944. He is the author of half a dozen books and numerous articles, several of which have appeared in this review

    The Cult of Kannon, The Goddess of Mercy, in Japanese Buddhism

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    Aloysius Soden, S.M., M.A. Member of the Marianist Province of New York; spent most of his professional life as missionary in Japan; author of several monographs about the Orient; served in Navy intelligence during World War II as interpreter; now in St. Joseph\u27s School, Yokohama
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