1,659 research outputs found
MARC 21 para recursos contínuos
No full textTranslation and adaptation of the MARC 21 Format for Bibliographic Data, and MARC 21 Format for Holdings Data, Network Development and MARC Standards Office, Library of Congress, USA, by Angela Salles. Rio de Janeiro, 2010. 2 v. V.1 MARC 21 format for bibliographic data (updated until October 2010). V.2 MARC 21 format for data collection (Holdings) (updated until October 2008)
MARC 21 para recursos contínuos.
No full textTradução e adaptação de MARC 21 Format for Bibliographic Data e MARC 21 Format for Holdings Data, da Network Development and MARC Standards Office, da Library of Congress, USA, por Angela Salles
Marc Jacobs Unseen
No full textMarc Jacobs Unseen is ‘the first publication dedicated to Marc Jacobs’s highly influential creations’*, described by The Observer as ‘a rare insight’ and Vogue as ‘a real revelation’. The particular focus of this critical appraisal is the personal archive (a recurring feature in Webb’s practice), notably those of the subject (Marc Jacobs), the photographer (Robert Fairer), and the author (Webb). The genesis of the text for this sole-authored book that accompanies new primary material in the form of Fairer’s previously unseen backstage images, is research from Webb’s own archive, amassed over four decades during his career at the forefront of the fashion industry, and represents a culmination of the author’s commitment to the promotion of the importance of the archive as material culture, as methodology and as providing an individual insight into creative thinking. The text takes the form of painstakingly assembled commentaries, each presenting a study of specific collections, highlighting particular garments and ensembles along with an analysis of environment and staging. ‘Working with Iain R. Webb…was illuminating,’ says Fairer. Jacobs Unseen is a valuable and illuminating analysis for both colleagues and students, especially those working in areas of fashion design, journalism and visual communication
Professor Alan R. Bromberg\u27s Rule 10b-5
No full textProfessor Alan Bromberg was the foremost authority in the law of Rule 10b-5. In this article, the author Professor Marc Steinberg, Professor Bromberg\u27s colleague for 25 years, highlights Professor Bromberg\u27s scholarship in this area. Focusing on key U.S. Supreme Court decisions and congressional legislation, Professor Steinberg reflects on the dialogue that he had with Professor Bromberg through the years on these developments. As this article illustrates, Professor Bromberg enjoyed a truly impressive academic career
The discovery of SycO reveals a new function for type three secretion effector chaperones
No full textThe Type Three Secretion (T3S) system is a device used by many Gram-negative pathogens that allows bacteria to deliver effector proteins straight into the eukaryotic cell cytosol. These effectors interfere with various signaling pathways to subvert the host cell functions. The secretion machinery of the T3S system consist of a basal body spanning the bacterial inner and outer membrane followed by a stiff hollow needle outside the bacterium. The fully assembled secretion apparatus constitute a continuous hollow conduit that connects the bacteria to the eukaryotic target cell. After cell contact, virulence proteins -called effectors- are injected directly into the cytosol of the host cell via the T3S apparatus. Several effectors of the T3S system require the assistance of specific cytosolic chaperones to be efficiently exported. There are three classes of T3S chaperones. Effector proteins are assisted by Class I chaperones. Although Class I chaperones are well characterized, their main function is still a matter of controversy. In this thesis, we demonstrate that orf155 encodes a specific chaperone for the effector YopO that we called SycO. We showed that SycO enhances YopO secretion in vitro and is required for translocation of YopO into infected cells. By pulldown assay we demonstrated that residues 20 to 77 of YopO are required and sufficient for SycO binding. Using crosslinking experiments and size exclusion chromatography analysis, we determined the stoichiometry of purified SycO and YopO-SycO complexes. SycO alone forms dimers in solution and the YopO-SycO complex has a 1:2 stoichiometry. These results suggested that SycO is a typical chaperone of the Class I. YopO is a serine/theronine kinase that interacts with Rho and Rac and disrupts the cytoskeleton of the target cells. YopO has been shown to localize at the cell plasma-membrane. By transfection of YopO-EGFP hybrid proteins into HEK293T cells, we demonstrated that the chaperone-binding domain (CBD) coincides with the membrane localization domain of YopO. Nevertheless, the CBD was not needed for the kinase activity of YopO. By ultracentrifugation, we also showed that the CBD causes YopO aggregation in the bacteria, when SycO does not cover it. Further, we show that the CBD of YopE and YopT also caused aggregation in the bacteria in the absence of SycE and SycT respectively. YopE, YopT and T3S effectors in other systems also act at the membrane of the eukaryotic host cell. We propose a new hypothesis concerning the role of T3S chaperones. The sub-cellular localization domain of effectors is aggregation-prone and creates the need for a chaperone inside bacteria. We propose that masking such aggregation-prone localization domains may be a general function for type III effector chaperones
Equilibrium transition study for a hybrid MAV
No full textWind tunnel testing was performed on a VTOL aircraft in order to characterize longitudinal flight behavior during an equilibrium transition between vertical and horizontal flight modes. Trim values for airspeed, pitch, motor speed and elevator position were determined. Data was collected by independently varying the trim parameters, and stability and control derivatives were identified as functions of the trim pitch angle. A linear fractional representation model was then proposed, along with several methods to improve longitudinal control of the aircraft
An investigation into Grade R teachers' experiences of implementing numeracy in Grade R
No full textThis research study investigates how selected Grade R teachers implement numeracy in their classrooms, based on their experiences, personal beliefs and perceptions. This study adopts the view that a teacher's practice is not only informed on what she believes about her learners, but also on how she organises her classroom environment and her own teaching practice. However, the teacher cannot be divorced from the political and historical
background of Early Childhood Development (ECD), as these factors have an impact on her numeracy implementation. Integrated in this research study is thus not only a comprehensive historical analysis of the historical and political background of ECD, but also an in-depth look at the complex curriculum road the Grade R teacher had to travel over the past twelve years. The aim of this case study is to understand and describe what is happening in Grade R classrooms when numeracy is implemented, as well as identifying possible barriers which Grade R teachers may experience in implementing numeracy. The author utilized an adapted Interactive Qualitative Analysis Framework to explore Grade R teachers' views and experiences. Open-ended focus group interviews were used to develop a framework for individual interviews. This interview framework guided the data collection of nine audio-video tapes of classroom activities and nine semi-structured individual interviews. Analysis of the individual interviews revealed each teacher's understanding as well as her perceptions and needs regarding the implementation of numeracy in her classroom. The transcriptions of the individual interviews were compared to the audio-video tapes of what happened in each classroom. This was done in order to determine whether the teachers' practices were consistent with what they said in the interviews. Paradoxes and inconsistencies were documented. The historical and political analysis of ECD illustrates the complex development of ECD in
South Africa over the last few decades. It therefore also highlights and brings to the fore the complex journey that Grade R teachers had to navigate in adapting their practice to ever changing curriculum requirements. The empirical results show that there are inconsistencies between what selected teachers know and believe, and what they are implementing. However, "silent themes" which did not come to the fore in the focus group or individual interviews, were identified in the audiovideo tapes of classroom activities. Also, many "silent themes" indicate that there are numerous concerns, such as lack of proficiency in bridging the gap between theory and practice, regarding the implementation of numeracy in Grade R. It was found that many of the selected Grade R teachers struggle to implement numeracy in their classrooms, as they lack the skills and support to teach numeracy in a Grade R context
Metadata initiatives and emerging technologies to improve resource discovery
No full textThis paper discusses some emerging issues on metadata as a mechanism of resource discovery and its impact on precision of search results in a distributed network environment. It presents a brief account of the recent major developments related to metadata across the globe. Highlights a consistent growth of multiple metadata standards to meet the variety of needs in a hierarchy of complexity. Examines various metadata-harvesting tools and related technologies that fulfill the task implicit in a user’s search. Brings out popular standards, useful protocols, and open-source harvesters along with their intrinsic capabilities for harvesting and presenting metadata and introduces a variety of metadata services viz., OCLC’s catalogue service, UKOLN metadata editor service, OAIster harvester service, DP9 gateway service, etc. explores the underlying principles of metadata-harvesting in DSpace and web search engines. Discusses use of multiple metadata formats in DSpace archives for exposing domain-specific metadata; and the inherent mechanism for extensibility and interoperability functions. Proposes methods for creating metadata that can pursue high-precision document retrieval in dynamic collections. Also discuses semantic web technologies and use of specialized metadata for long-term management and preservation of digital objects
International economics : theory and policy / Paul R. Krugman, Princeton University, Maurice Obstfeld, University of California, Berkeley, Marc J. Melitz, Harvard University.
No full texteconomic&political bookfair2016Includes bibliographical references and index.785 pages :"For courses in International Economics, International Finance, and International Trade" "A balanced approach to theory and policy applications"...
"International Economics: Theory and Policy" provides engaging, balanced coverage of the key concepts and practical applications of the two main topic areas of the discipline. For both international trade and international finance, an intuitive introduction to theory is followed by detailed coverage of policy applications. With this new tenth edition, the author team of Nobel Prize-winning economist Paul Krugman, renowned researcher Maurice Obstfeld, and Marc Melitz of Harvard University continues to set the standard for International Economics courses. This program provides a better teaching and learning experience--for you and your students. It will help you to: - Personalize learning with MyEconLab This online homework, tutorial, and assessment program fosters learning and provides tools that help instructors to keep students on track.- Reveal theory and applications of trade and finance via a unified structure Balanced coverage of theory and applications aids student retention and highlights the relevance of course material.- Give students learning tools to master course material Numerous in-text learning resources engage students and encourage further exploration of course topics. Note: If you are purchasing the standalone text or electronic version, MyEconLab does not come automatically packaged with the text. To purchase MyEconLab please visit www.myeconlab.com or you can purchase a package of the physical text + MyEconLab by searching for 0133826945 / 9780133826944. MyEconLab is not a self-paced technology and should only be purchased when required by an instructor
Zwischen Unterhaltung und „Wissenschaft“. Zum Katastrophennarrativ in Marc Elsbergs Roman Blackout
No full text Ziel des vorliegenden Aufsatzes ist es, den Roman „Blackout“ von Marc Elsberg vor dem Hintergrund der gegenwärtigen, von der amerikanischen Massenkultur stark geprägten Katastrophennarrationen zu diskutieren. Im Gegensatz zu vielen Katastrophengeschichten unserer Zeit, die wenig plausible, unrealistische oder gar absurde Bedrohungsszenarien zeichnen, entwirft Elsberg das absolut realistische Szenario eines großflächigen und langfristigen Stromausfalls und seiner Folgen für die Menschheit. Zwar spielt seine Prosa durchaus mit zeittypischen gesellschaftlichen Ängsten, gleichwohl soll sie, so zumindest die deklarierte Absicht des Autors, auch für einen bewussten Umgang mit neuen Technologien sensibilisieren. Nicht von ungefähr stützen sich seine Texte auf intensive wissenschaftliche Recherche. Vor dieser Folie lässt sich Elsbergs Prosa auch als eine Art „Warnungsliteratur“ lesen und deuten.Between entertainment and “science”: On catastrophic narrative in Marc Elsberg’s novel BlackoutThe aim of this paper is to discuss Marc Elsberg‘s novel Blackout against the background of contemporary catastrophic narratives, strongly shaped by American mass culture. Contrary to numerous stories of catastrophes and dystopian visions of our time that tend to present unconvincing, unrealistic or even absurd threats, Elsberg presents a completely realistic scenario of a long term and extensive blackout, as well as its consequences for humanity. While his prose builds on contemporary fears, at least in the author’s declaration, however, it seems to aim at increasing social awareness of the conscious use of new technologies. His book is based on intense desk research and incorporates scientific evidence. Against this background, Elsberg’s novel could be read and interpreted as “literature of warning”. Ziel des vorliegenden Aufsatzes ist es, den Roman „Blackout“ von Marc Elsberg vor dem Hintergrund der gegenwärtigen, von der amerikanischen Massenkultur stark geprägten Katastrophennarrationen zu diskutieren. Im Gegensatz zu vielen Katastrophengeschichten unserer Zeit, die wenig plausible, unrealistische oder gar absurde Bedrohungsszenarien zeichnen, entwirft Elsberg das absolut realistische Szenario eines großflächigen und langfristigen Stromausfalls und seiner Folgen für die Menschheit. Zwar spielt seine Prosa durchaus mit zeittypischen gesellschaftlichen Ängsten, gleichwohl soll sie, so zumindest die deklarierte Absicht des Autors, auch für einen bewussten Umgang mit neuen Technologien sensibilisieren. Nicht von ungefähr stützen sich seine Texte auf intensive wissenschaftliche Recherche. Vor dieser Folie lässt sich Elsbergs Prosa auch als eine Art „Warnungsliteratur“ lesen und deuten.Between entertainment and “science”: On catastrophic narrative in Marc Elsberg’s novel BlackoutThe aim of this paper is to discuss Marc Elsberg‘s novel Blackout against the background of contemporary catastrophic narratives, strongly shaped by American mass culture. Contrary to numerous stories of catastrophes and dystopian visions of our time that tend to present unconvincing, unrealistic or even absurd threats, Elsberg presents a completely realistic scenario of a long term and extensive blackout, as well as its consequences for humanity. While his prose builds on contemporary fears, at least in the author’s declaration, however, it seems to aim at increasing social awareness of the conscious use of new technologies. His book is based on intense desk research and incorporates scientific evidence. Against this background, Elsberg’s novel could be read and interpreted as “literature of warning”
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