2,939 research outputs found
Steven Yedinak Interview
No full textLTC (RET) Steven M. Yedinak commissioned in the U. S. Army Infantry in 1963 and subsequently spent 26 years in Special Forces and Airborne Infantry. He served two combat tours in Vietnam (1966-67 & 1971-1972), and started the Mobile Guerrilla Force. He is the author of Hard to Forget: An American with the Mobile Guerrilla Force in Vietnam (Random House, 1998). He retired from the Army in 1989
Corolla size and temporal displacement of flowering times among sympatric diploid and tetraploid highbush blueberry (Vaccinium corymbosum)
No full textPolyploidy (whole-genome duplication) is common in vascular plants, but the modes of establishment and persistence, as well as the ecological consequences, of polyploidy remain vague. Highbush blueberry (Vaccinium corymbosum L.) is an ecologically and economically important understory shrub with an unclear species definition, coexisting in sympatric populations of diploid and tetraploid cytotypes. This study analyzes differences in bloom time between sympatric diploid and tetraploid V. corymbosum in natural populations, testing the potential for these cytotypes to interbreed and contributing to the formation and continuity of ploidy-level diversification within this species. Ploidal level was confirmed through DNA flow cytometry of sympatric plants from two populations in New Jersey, USA. Flower bloom date and corolla size were recorded over a three-year period. Diploid corollas were 32% smaller than tetraploid corollas, making them easily identifiable in the field. Ploidy accounted for 55-69% of the variation in bloom date, with diploids flowering about one week before tetraploids, and the remaining variation distributed among plants, among branches, and within branches. Notwithstanding these differences, there was modest overlap in flowering time between cytotypes, suggesting that cross-pollination is possible. This contributes evidence to the most current species definition of V. corymbosum as a single (mixed ploidy) species.Poster's Graduate Student Thesis Publication.Peer reviewed
Application of Quantification of Uncertainties Method in Detonation Simulation to Steven Test
No full textAbstractDetonation sensitivity is important index for measuring initial capability high explosive. Steven impact test is one of the basic tests about gauging and has greatly increased the fundamental knowledge of practical predictions of impact safety hazards. We describe a modified form of Lee-Tarver reactive flow model, Lagrange model and elastoplasticity hydrodynamics model. It is better suited for test data. Numerical simulation has become more important in designing detonation systems and the quantification of its uncertainty is also necessary to reliability certification. We try to apply quantification of uncertainty in detonation simulation to Steven impact test for proof feasibility of the quantifying uncertainty framework in practical problem
Unified mathematical treatment of complex cascaded bipartite networks: The case of collections of journal papers
No full textIn this study, a mathematical treatment is proposed for analysis of entities and relations among entities in
complex networks consisting of cascaded bipartite networks. This treatment is applied to the case of
collections of journal papers. In this case, entities are distinguishable objects and concepts, such as papers,
references, paper authors, reference authors, paper journals, reference journals, institutions, terms, and term
definitions. Relations are associations between entity-types such as papers and the references they cite, or
paper authors and the papers they write. An entity-relationship model is introduced that explicitly shows
direct links between entity-types and possible useful indirect relations. From this a matrix formulation and
generalized matrix arithmetic are introduced that allow easy expression of relations between entities and
calculation of weights of indirect links and co-occurrence links. Occurrence matrices, equivalence
matrices, membership matrices and co-occurrence matrices are described. A dynamic model of growth
describes recursive relations in occurrence and co-occurrence matrices as papers are added to the paper
collection. Graph theoretic matrices are introduced to allow information flow studies of networks of papers
linked by their citations. Similarity calculations and similarity fusion are explained. Derivation of feature
vectors for pattern recognition techniques is presented. The relation of the proposed mathematical
treatment to seriation, clustering, multidimensional scaling, and visualization techniques is discussed. It is
shown that most existing bibliometric analysis techniques for dealing with collections of journal papers are
easily expressed in terms of the proposed mathematical treatment: co-citation analysis, bibliographic
coupling analysis, author co-citation analysis, journal co-citation analysis, Braam-Moed-vanRaan (BMV)
co-citation/co-word analysis, latent semantic analysis, hubs and authorities, and multidimensional scaling.
This report discusses an extensive software toolkit that was developed for this research for analyzing and
visualizing entities and links in a collection of journal papers. Additionally, an extensive case study is
presented, analyzing and visualizing 60 years of anthrax research through a collection of journal papers.
When dealing with complex networks that consist of cascaded bipartite networks, the treatment presented
here provides a general mathematical framework for all aspects of analysis of static network structure and
network dynamic growth. As such, it provides a basic paradigm for thinking about and modeling such
networks: computing direct and indirect links, expressing and analyzing statistical distributions of network
characteristics, describing network growth, deriving feature vectors, clustering, and visualizing network
structure and growth
What's Wrong with the First Amendment? - A Book Celebration
No full textAuthor: Steven H. Shiffrin (Charles Frank Reavis Sr. Professor of Law, Emeritus; Cornell Law School). Speakers: Vincent Blasi (Corliss Lamont Professor of Civil Liberties; University of California, Los Angeles, School of Law), Michael Dorf (Robert S. Stevens Professor of Law; Cornell Law School). Moderator: Aziz Rana (Professor of Law; Cornell Law School). Monday, November 7, 12:15pm, 290 Myron Taylor HallA Book Celebration upon the publication of Prof. Steven H. Shiffrin's book, What's Wrong with the First Amendment?Cornell University Law Library1_m65zr5h
A Cryo-CMOS DAC-based 40 Gb/s PAM4 Wireline Transmitter for Quantum Computing Applications
No full textState-of-the-art quantum computers already comprise hundreds of cryogenic quantum bits (qubits), and prototypes with over 10k qubits are currently being developed. Such large-scale systems require local cryogenic electronics for qubit control and readout, leaving the digital controllers for algorithm execution and quantum error correction (QEC) at room temperature due to the limited cryogenic cooling budget. The entire process, including qubit readout, data transmission, QEC, and algorithm execution, should be completed well within the qubit decoherence time, thus requiring a low-power high-speed communication link between the cryogenic quantum processor and classical processor located at room temperature. To this end, this paper presents the first cryo-CMOS high-speed 4-level pulse amplitude modulation (PAM4) wireline transmitter. Thanks to a power-efficient serializing architecture driving a 6-bit digital-to-analog converter (DAC), the 40-nm CMOS chip achieves a data rate of 40 Gb/s PAM4 with an efficiency of 2.46pJ/b and a ratio of level mismatch (RLM) of 97.8% at 4.2 K. While demonstrating an energy efficiency comparable to state-of-the-art transmitters in more advanced CMOS nodes, the extremely wide temperature operating range (4.2 K - 300 K) will enable future large-scale quantum computers.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.QCD/Babaie LabElectronicsElectrical Engineering, Mathematics and Computer ScienceQuantum Circuit Architectures and Technolog
Provenance-based trust for grid computing: Position Paper
No full textCurrent evolutions of Internet technology such as Web Services, ebXML, peer-to-peer and Grid computing all point to the development of large-scale open networks of diverse computing systems interacting with one another to perform tasks. Grid systems (and Web Services) are exemplary in this respect and are perhaps some of the first large-scale open computing systems to see widespread use - making them an important testing ground for problems in trust management which are likely to arise. From this perspective, today's grid architectures suffer from limitations, such as lack of a mechanism to trace results and lack of infrastructure to build up trust networks. These are important concerns in open grids, in which "community resources" are owned and managed by multiple stakeholders, and are dynamically organised in virtual organisations. Provenance enables users to trace how a particular result has been arrived at by identifying the individual services and the aggregation of services that produced such a particular output. Against this background, we present a research agenda to design, conceive and implement an industrial-strength open provenance architecture for grid systems. We motivate its use with three complex grid applications, namely aerospace engineering, organ transplant management and bioinformatics. Industrial-strength provenance support includes a scalable and secure architecture, an open proposal for standardising the protocols and data structures, a set of tools for configuring and using the provenance architecture, an open source reference implementation, and a deployment and validation in industrial context. The provision of such facilities will enrich grid capabilities by including new functionalities required for solving complex problems such as provenance data to provide complete audit trails of process execution and third-party analysis and auditing. As a result, we anticipate that a larger uptake of grid technology is likely to occur, since unprecedented possibilities will be offered to users and will give them a competitive edge
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Effects of soil amendment treatments on survival and growth of four fast-growing tree species on degraded mine areas in the Peruvian Amazon
No full textThis paper aims to increase the knowledge on establishment practices for four fast-growing species (Guazuma crinita Mart., Eucalyptus grandis x E. urophylla, Bixa orellana L., Psidium guajava L.) in areas degraded by gold mining in the Peruvian Amazon. The study was carried out in Madre de Dios region, located in the southeast of Peru, in sites degraded by intensive mining. The study, that started in 2017, aims to quantify the effects of biochar and fertilizers on seedling growth and survival. The treatments tested were control, biochar, enriched biochar (biochar enriched with efficient microorganisms and fertilizers), and organic liquid fertilizer plus N-P-K.
After three growing seasons, strong differences are shown in the survival of the four species studied, but no effect of soil treatments on growth increased. Psidium guajava showed the highest survival rate and Eucalyptus grandis x E. urophylla showed the larger growth. No treatments by species effect were observed on seedling growth and survival. Further research is needed to provide better alternatives to increase seedling survival and growth in areas degraded by mining in the Peruvian Amazon
A director's approach to Elmer Rice's The Adding Machine.
No full textThis thesis is the author's approach to directing and designing Elmer Rice's The Adding Machine for the production in Theatre 11 at Baylor University. It contains a basic background and historical overview of the author. This thesis analyzes the structural elements of the play: idea, dramatic action, character, dialogue, mood and tempo, and given circumstances. In addition, a detailed design approach is discussed. All elements of the play's production are explored and evaluated: scenery, properties, costumes, make-up, sound, lighting and video. Found in the appendices is the pre-production publicity and a copy of the program
A odisseia da mente : diálogos sobre o cérebro e a consciência
No full textBem-vindos a uma viagem extraordinária a bordo de uma caravela filosófica, guiada pelo Autor por "mares nunca dantes navegados". Esta Odisseia pelos mares tempestuosos do mente inclui a contribuição de 8 dos mais brilhantes especialistas internacionais sobre o cérebro e a consciência, como o Prémio Nobel da Física Sir Roger Penrose.
Dividido em duas partes, o livro inicia com Steven S. Gouveia a traçar as coordenadas fundamentais da filosofia e da ciência da mente. A segunda parte ganha vida nos diálogos do Autor com os 8 pensadores, proporcionando uma experiência única de exploração intelectual. Prepare-se para zarpar rumo ao desconhecido, onde a ciência e a filosofia convergem numa jornada cativante pelos mistérios da mente consciente.Welcome to an extraordinary journey aboard a philosophical caravel guided by the Author through 'seas never before navigated.' This odyssey through the tempestuous seas of the mind includes contributions from eight of the brightest international experts on the brain and consciousness, including Nobel Prize-winning physicist Sir Roger Penrose. Divided into two parts, the book begins with Steven S. Gouveia plotting the fundamental coordinates of philosophy and the science of the mind. The second part comes to life in the Author's dialogues with the eight thinkers, providing a unique experience of intellectual exploration. Prepare to set sail into the unknown, where science and philosophy converge in a captivating journey through the mysteries of the conscious mind
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