3,831 research outputs found
Service-oriented models for audiovisual content storage
No full textWhat are the important topics to understand if involved with storage services to hold digital audiovisual content? This report takes a look at how content is created and moves into and out of storage; the storage service value networks and architectures found now and expected in the future; what sort of data transfer is expected to and from an audiovisual archive; what transfer protocols to use; and a summary of security and interface issues
Petrological and geoarchaeological analysis of volcanic horizons and quarrying discovered at Dainton Elms Cross, Ipplepen, Devon
No full textArchaeological excavations on land adjacent to Dainton Elms Cross, Ipplepen, Devon in 2012 and 2013 revealed previously unseen geological strata. Detailed field and laboratory analysis illustrated a range of igneous deposits including tuff, basalt and thin pyroclastic horizons associated with explosive volcanic episodes during the Devonian period (375-398 Ma). These horizons appear to have been the focus of deliberate quarrying during the Romano-British and later periods within a wider industrial landscape
The Geology and Vertebrate Paleontology of Calvert Cliffs, Maryland, USA
No full textThe last comprehensive review of the fossil vertebrates from the Miocene of Calvert Cliffs was published more than 100 years ago. This volume is a collection of papers that updates some of the geological features of Calvert Cliffs and provides reviews of the fossil biota that include representatives from the following taxonomic groups: chondrichthyans (chimaeras, shark, skates, and rays), actinopterygians (ray-finned fishes), crocodilians (crocodiles), and sirenians (sea cows). Peter Vogt, Ralph E. Eshelman, and Stephen J. Godfrey document how the 20–40 m [65–130 ft] high Calvert Cliffs along the western shore of the Chesapeake Bay continue to yield insights into 18–8 mya (Miocene) geology, marine and terrestrial vertebrate fauna, and the origin and evolution of Chesapeake Bay and Calvert Cliffs up to the present. These exposures rank high among the best-known fossiliferous deposits of any age. Bretton W. Kent describes the cartilaginous fish (the chondrichthyan) fauna, consisting of 54 species—3 chimaeras (ratfishes), 39 sharks, and 12 skates and rays—a fauna rich in large macrophagous sharks and large neritic rays. In an addendum to Kent’s chapter, he and David J. Ward describe a new species of giant thresher shark with serrated teeth. Giorgio Carnevale and Stephen J. Godfrey present an account of the 38 actinopterygian taxa known from osteological remains and a diverse otolith assemblage of at least 55 taxa. These actinopterygians show an affinity for well-oxygenated muddy and sandy substrates dominated primarily by shallow-water species characteristic of the inner shelf and secondarily by epipelagic taxa. Robert E. Weems details the crocodilians referable to the tomistomine Thecachampsa. The closest living relative is Tomistoma schlegelii, the false gharial of Southeast Asia. Two species are present: Thecachampsa sericodon and T. antiquus. These tomistomines are found in shallow marine coastal deposits, indicating that they inhabited coastal waters. Daryl P. Domning reports that fossils of the Miocene marine fauna include rare sirenians of the family Dugongidae. Three taxa are known: the halitheriine dugongid Metaxytherium crataegense, the dugongine dugongid Nanosiren sp., and another dugongine, aff. Corystosiren. The St. Marys Formation contains remains that may be referable to Metaxytherium floridanum, but confirmation awaits the discovery of more complete specimens
Author Stephen Flynn Discusses Resiliency
No full textCenter for Homeland Defense and Security, PRESS RELEASESOn September 25, Author Stephen E. Flynn stopped by the Center’s National Capital Region campus to speak with CHDS Master’s degree students about his latest book, answer questions and discuss..
The Geology and Vertebrate Paleontology of Calvert Cliffs, Maryland, USA – Volume 2: Turtles and Toothed Whales
No full textThis volume is a follow-on to a work published by Smithsonian Institution Scholarly Press in 2018 on the Miocene vertebrate fauna from Calvert Cliffs, Maryland, USA. Two chapters are included in this compendium, one on turtles (chelonians) and the other on toothed whales (odontocetes). It is anticipated that at least one more volume will be needed to complete the taxonomic review. Robert E. Weems details the occurrence of 19 kinds of chelonians that have been discovered in the Miocene and Pliocene marine strata of Delaware, Maryland, and Virginia, USA, 13 of them in the Calvert Cliffs. The most commonly found remains are those of an extinct sea turtle, Trachyaspis lardyi. Remains of four other marine turtles, Procolpochelys grandaeva, Lepidochelys sp., a generically indeterminate cheloniid, and a leatherback turtle (Psephophorus polygonus), are far less common. The other 14 chelonian taxa are nonmarine forms that inhabited the land, rivers, and marshes west of the Mid-Atlantic Seaboard during the Miocene. They were washed into the coastal marine environments that were then accumulating the sediments exposed today as the strata in the Calvert Cliffs. Stephen J. Godfrey and Olivier Lambert review the taxonomically diverse odontocete fauna of 29 named species. Nine of these Miocene taxa represent newly named species. Fragmentary remains hint at even greater diversity. Reviewed taxa are restricted to those known from along the Calvert Cliffs and other Miocene age deposits on the Atlantic Coastal Plain in Maryland and Virginia, USA. They range in age from approximately 22 to 8 Ma and derive from the Calvert, Choptank, and St. Marys Formations. This fauna preserves one of the most abundant and diverse assemblages of extinct toothed whales known. None of the named odontocete species included in this review are known from beyond the North Atlantic Ocean. In terms of their chronostratigraphic distribution, collectively, they range in age from the Aquitanian through the Tortonian, with the large majority occurring within the Burdigalian, Langhian, and Serravallian stages (the latter two being the most speciose). The greatest taxonomic diversity occurred during the Middle Miocene Climate Optimum, a time (ca. 17–15 Ma) when global average temperatures were as much as 4°C to 5°C above today’s average temperatures, at least for much of that interval. [Godfrey, Stephen J., editor. The Geology and Vertebrate Paleontology of Calvert Cliffs, Maryland, USA – Volume 2: Turtles and Toothed Whales. Smithsonian Contributions to Paleobiology, number 107, viii + 191 pages, frontispiece, 94 numbered figures, and 44 additional unnumbered illustrations, 10 tables, 2023.]</p
Memorandum from A. E. Demaray to E. C. Finney
No full textFour letters of correspondence about the purchase of Bright Angel Trail between A. E. Demaray, Acting Director of the Grand Canyon National Park; E. C. Finney, Department of the Interior First Assistant Secretary; Carl T. Hayden, Representative (AZ); and Stephen T. Mather, Director of the National Park Service
Including design in e-manufacturing
No full textThis paper reviews major issues in the implementation of e-manufacturing, particularly the design aspects. It will examine recent progress, drawing out particular issues that are being addressed. Use will be made of the work by the author and colleagues to devise rule-based design and Internet-based control of machines to illustrate how these developments affect the integrated e-manufacturing environment. A dynamic Simulink model of the way e-manufacture is affected by overall design delays is used to evaluate general solutions for partial and complete e-based companies. These models show how changing to improved designs reduces WI
Hubert Damisch e Stephen Bann: uma conversa
No full textDiscípulo de Merleau-Ponty e Pierre Francastel, Hubert Damisch (1928) marca presença decisiva na renovação epistemológica da disciplina história da arte, franqueando-a às contribuições da psicanálise, da filosofia, da antropologia e da semiótica, e conferindo a ela inédita envergadura teórica, para muito além das demarcações tradicionais de competência que a separam da teoria da arte. Tendo sido músico de jazz na juventude e se dedicado inicialmente ao cinema antes de se voltar às artes visuais, manteve sempre uma perspectiva teórica forte da história da arte, visando um campo diversificado de interesses - a pintura, a estética, a arquitetura, a literatura, a fotografia, o cinema. Autor de livros fundamentais como Théorie du nuage: pour une histoire de la peinture (Paris: Seuil, 1972), L’Origine de la perspective (Paris: Flammarion, 1987), Le Jugement de Pâris: iconologie analytique, (Paris: Flammarion, 1992), Un Souvenir d’enfance par Piero della Francesca (Paris: Seuil, 1997) e La Dénivelée: à l’épreuve de la photographie (Paris: Seuil, 2001), Damish produziu reflexão crucial sobre a lógica da imagem, nos oferecendo uma prática nada convencional da história da arte, marcada pelo livre trânsito metodológico entre a arte do passado e a do presente. Foi professor na École Normale Supérieure e depois na École des Hautes Études en Sciences Sociales. A entrevista a seguir, concedida a um grupo de teóricos e críticos, entre eles, Stephen Bann, historiador da arte e um dos editores da Oxford Art Journal, apareceu, originalmente, em número especial dessa publicação [vol. 28, n. 2, 2005, p. 157-181], tendo resultado de seminário dedicado à obra de Damisch, promovido pela revista, em parceria com a Tate Britain, em outubro de 2003. Além de Stephen Bann, entrevistaram Hubert Damisch Margaret Iversen, John Goodman, Stephen Melville e Yve-Alain Bois.Having studied with Merleau-Ponty and Pierre Francastel, Hubert Damisch (1928) raises as a key figure in the epistemological renewing of the disciplinary field of art history, having opened it up for the contributions of psychoanalysis, philosophy, anthropology and semiotics, while assigning to it a unique theoretical scope – far beyond the traditional jurisdictions that have set apart art history from the concerns of the theory of art. A jazz musician in his youthful, and attracted firstly by film before being driven towards visual arts, Damisch have always claimed a theoretical density for the field of art history, where he would work from a multifarous horizon of interests – painting, architecture, literature, photography, ethnology. He has produced a crucial reflexion on the logics of image, being author of referential studies on the subject, such as Théorie du nuage: pour une histoire de la peinture (Paris: Seuil, 1972), L’Origine de la perspective (Paris: Flammarion, 1987), Le Jugement de Pâris: iconologie analytique, (Paris: Flammarion, 1992), Un Souvenir d’enfance par Piero della Francesca (Paris: Seuil, 1997) and La Dénivelée: à l’épreuve de la photographie (Paris: Seuil, 2001). His oeuvre shows a singular and unconventional way of dealing with art history, marked by his methodological freedom to move with boldness between the art of the present and the past. Damisch has teached at École Normale Supérieure and afterwards at École des Hautes Études en Sciences Sociales. This interview, given to a group of art historians, theoreticians and art critics, and conducted mostly by the art historian Stephen Bann, editor of Oxford Art Journal, originally appeared in a special issue of this publication [vol. 28, n. 2, 2005, p. 157-181], as a result of a conference dedicated do Hubert Damisch’s work. The conference was promoted by the journal in partnership with Tate Britain, in October 2003. Besides Stephan Bann, the discussions also involved the participation, as interviewers, of Margaret Iversen, John Goodman, Stephen Melville and Yve-Alain Bois
Self-consciousness and the image of self in the poetry of Stephen Spender, 1928 to 1934
No full textThe purpose of this thesis is twofold. First, to demonstrate the value and significance of Spender's early poetry in terms of its vision and technique. Through a series of close readings the thesis traces the ways in which Spender's early poetry not only shows itself to be self-conscious but also manipulates images of self. Presenting images of self, Spender achieves a balance between engagement with and distance from the self, and the reader shares in the process of poetic self-awareness. Secondly, to demonstrate the broader value of the poetry. Spender's poetry presents a distinctive exploration of the possibilities of self in relation to the external world. The resolution of Spender’s questioning and selection of both personal and public values, rooted in his contemporary situation and private circumstances, in his poetry takes the form less of historical document than of human record. The period on which I focus, 1928 to 1934, represents Spender’s first, and arguably most significant, poetic phase. The thesis is specifically concerned with four texts: Nine Experiments. Spender's contributions to Oxford Poetry (1929 and 1930), Twenty Poems and Poems (1933 and 1934). Nine Experiments marks the beginning of a particular approach and lyric style which finds its culmination in Poems (1933 and 1934). The earliest poetry is interesting largely insofar as it looks forward to later themes and techniques. In Nine Experiments and Oxford Poetry (1929 and 1930) we see Spender's often successful struggle to achieve effective forms in which to explore issues of self and value. Twenty Poems and Poems (1933 and 1934) concentrate on themes of love and friendship and the pressure on the poet of the contemporary political scene. The poetry does not reconcile the demands of the external, public world with his inner desires and aspirations, but presents a series of fascinatingly unresolved tensions. The thesis explores the way these poems strive for certainty. This striving stems from the tension between Spender's desire to politicize poetry and his tendency to the lyrical, personal statement
Stephen Schofield
No full textTisseron analyses the multiple aspects of Schofield's recent soft-sculptures. The author notes their characteristic relationship with depth, links them to the preverbal experience of maternal touching, and examines the interface function of the materials. Artist's statement. Biographical notes. 11 bibl. ref
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