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Sample records for tractable simulation daniel

  1. The Tractable Cognition Thesis

    Science.gov (United States)

    van Rooij, Iris

    2008-01-01

    The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the "Tractable Cognition thesis": Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational-level theories…

  2. The Tractable Cognition thesis

    NARCIS (Netherlands)

    Rooij, I.J.E.I. van

    2008-01-01

    The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the Tractable Cognition thesis: Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by

  3. The tractable cognition thesis.

    Science.gov (United States)

    Van Rooij, Iris

    2008-09-01

    The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the Tractable Cognition thesis: Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational-level theories of cognition. To utilize this constraint, a precise and workable definition of "computational tractability" is needed. Following computer science tradition, many cognitive scientists and psychologists define computational tractability as polynomial-time computability, leading to the P-Cognition thesis. This article explains how and why the P-Cognition thesis may be overly restrictive, risking the exclusion of veridical computational-level theories from scientific investigation. An argument is made to replace the P-Cognition thesis by the FPT-Cognition thesis as an alternative formalization of the Tractable Cognition thesis (here, FPT stands for fixed-parameter tractable). Possible objections to the Tractable Cognition thesis, and its proposed formalization, are discussed, and existing misconceptions are clarified. 2008 Cognitive Science Society, Inc.

  4. Daniel Libeskind

    DEFF Research Database (Denmark)

    Birch, Kirsten; Tønsager, Svein

    1987-01-01

    Interview af den polskfødte arkitekt Daniel Libeskind om bl.a. hans 'huske-, læse- og skrivemaskine' på den 3. internationale arkitekturudstilling i Venezia (1985) og om hans tegninger og forhold til en genoplivet håndværkertradition. Resume på engelsk.......Interview af den polskfødte arkitekt Daniel Libeskind om bl.a. hans 'huske-, læse- og skrivemaskine' på den 3. internationale arkitekturudstilling i Venezia (1985) og om hans tegninger og forhold til en genoplivet håndværkertradition. Resume på engelsk....

  5. Norman Daniels

    Institute of Scientific and Technical Information of China (English)

    邱仁宗

    2014-01-01

    本期“国际生命伦理学家”栏目介绍哈佛大学公共卫生学院Mary B.Saltonstall 教授及伦理和人口健康教授Norman Daniels。他目前的研究集中在“公平基准”。第一部分为他的学术生涯介绍。第二部分为他的代表作《公平与人群健康---更为宽广的生命伦理学议题》的节译,在其中讨论了如下问题:为了健康公平,我们必须做什么?国际公平与健康,在老龄化社会情境下不同年龄组和出生队列之间的公平。在文中他对生命伦理学和生命伦理学工作者提出了倡议。第三部分他就公共伦理的特点、为什么在人群健康领域开展伦理学探究是重要的、全球健康越来越成为会议和出版物的话题的原因以及在全球医学领域哪些伦理问题比其他伦理问题都重要作了回答。%In this issue , Norman Daniels , professor in ethics and population health from School of Public Health of Harvard University is introduced in the column of "International Bioethicist".His current research focu-ses on "fairness benchmark".The first part is about his academic career .The second part is the partial translation of his masterpiece , "Fairness and Population Health: A Broader Bioethical Issue", in which issues of what we have to do for health equity , international fairness and healthy , fairness in different age groups and the birth cohort under an ageing society situation were discussed .In the article , he called for initiatives in bioethical workers .In the third part , the characteristics of public ethics , the importance of ethics investigation in population health , the reasons for global health becoming the hot topic and some more important ethical issues were discussed .

  6. Nocera, Prof. Daniel G

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2013 Honorary. Nocera, Prof. Daniel G. Date of birth: 1957. Address: Dept. of Chemistry & Chem. Biol., Harvard University, 12, Oxford Street, Cambridge, MA 02138, USA Contact: Office: (+1-617) 495 8904. Email: dnocera@fas.harvard.edu. http://chemistry.harvard.edu/people/daniel-g-nocera.

  7. Interview: Daniel Boyd.

    Science.gov (United States)

    Boyd, Daniel

    1993-01-01

    Daniel Boyd, film teacher at West Virginia State College, describes his life and career as an independent filmmaker, including his educational background in film, efforts to market his films within the film industry, and development of scripts and films. (TES)

  8. On tractable query evaluation for SPARQL

    OpenAIRE

    Mengel, Stefan; Skritek, Sebastian

    2017-01-01

    Despite much work within the last decade on foundational properties of SPARQL - the standard query language for RDF data - rather little is known about the exact limits of tractability for this language. In particular, this is the case for SPARQL queries that contain the OPTIONAL-operator, even though it is one of the most intensively studied features of SPARQL. The aim of our work is to provide a more thorough picture of tractable classes of SPARQL queries. In general, SPARQL query evaluatio...

  9. Hartl, Prof. Daniel L

    Indian Academy of Sciences (India)

    Hartl, Prof. Daniel L. Date of birth: 1 January 1943. Address: Higgins Professor of Biology, Dept. of Organismic & Evolutionary, Biology, The Biological Lab., Harvard University, 16 Divinity Ave, Cambridge, MA 02138, USA Contact: Office: (+1-617) 496 3917. Email: dhartl@oeb.harvard.edu. YouTube; Twitter; Facebook; Blog ...

  10. Tribute to Daniel Simon

    CERN Multimedia

    2011-01-01

    Daniel Simon, PS Division Leader from 1994 to 1999, died on 2 June, 2011, at the age of 74, in Nancy. CERN owes him for a great number of contributions to the experimental areas around the PS and the existence of the Antiproton Decelerator (AD).   Daniel came to CERN in 1962 from the University of Nancy. He first worked in the Nuclear Physics Apparatus (NPA) Division on the electrostatic separators for the secondary beams at the PS, a subject he also chose for his thesis. Then, as a member of the PS-Division, he designed a variety of beam lines, including those providing protons and antiprotons to ICE, the decisive experiment for CERN to launch the antiproton project, based on stochastic cooling. His contributions to the initial layout and further evolution of the experimental areas of LEAR were essential for the success of the LEAR programme. He subsequently drove the decision and worked on the conversion of LEAR into LEIR for the provision of lead-ions to the LHC. He was one of the leaders of t...

  11. Tractable Pareto Optimization of Temporal Preferences

    Science.gov (United States)

    Morris, Robert; Morris, Paul; Khatib, Lina; Venable, Brent

    2003-01-01

    This paper focuses on temporal constraint problems where the objective is to optimize a set of local preferences for when events occur. In previous work, a subclass of these problems has been formalized as a generalization of Temporal CSPs, and a tractable strategy for optimization has been proposed, where global optimality is defined as maximizing the minimum of the component preference values. This criterion for optimality, which we call 'Weakest Link Optimization' (WLO), is known to have limited practical usefulness because solutions are compared only on the basis of their worst value; thus, there is no requirement to improve the other values. To address this limitation, we introduce a new algorithm that re-applies WLO iteratively in a way that leads to improvement of all the values. We show the value of this strategy by proving that, with suitable preference functions, the resulting solutions are Pareto Optimal.

  12. A Tractable Approach to Pass-Through Patterns

    OpenAIRE

    E. Weyl; Michal Fabinger

    2015-01-01

    For tractability, researchers often use equilibrium models that can be solved in closed-form. In practice, this means imposing unintended substantive restrictions on incidence properties that are central to many policy questions. To overcome this limitation, we characterize a set of joint supply and demand systems yielding closed-form solutions. This class is broad enough to allow substantial flexibility and thus realism, and it nests virtually all other tractable systems in the literature. W...

  13. Daniel Fromm 1949-2007

    CERN Multimedia

    2007-01-01

    It was with great sadness that we learned of the death in an accident of our friend and former colleague, Daniel Fromm, at the age of 58. Daniel arrived at CERN in 1968 to work on the alignment of the ISR magnets. After becoming a member of the personnel in 1975, he joined the R209 experiment in the 1980s, then the ALEPH experiment in 1994. He was a member of the PH-DT1 group from 2000 until his retirement in 2006. The name of Daniel Fromm is intimately linked to mass flowmeters. For over 15 years he managed the laboratory in Building 156 that was responsible for the calibration of flowmeters and technical support equipment for the gas racks used in the beams of the PS and SPS. The physicists from the LEP and fixed-target experiments placed blind trust in the accuracy and reliability of Daniel’s calibrations. They could be confident that a faulty flowmeter he repaired would be ready for use again in record time so that the detector could be immediately brought b...

  14. Daniel Brandt (1950-2014)

    CERN Multimedia

    2015-01-01

    It was with great sadness and emotion that we learnt of the death of our colleague and friend Daniel Brandt.   Throughout his career, Daniel was a faithful servant of the Organization, notably through his work as an expert in beam optics and collective effects. In particular, he contributed to the optimisation of the performance of LEP and later to theoretical studies on beam dynamics for the LHC. Daniel’s personal qualities made him a most pleasant colleague, always passionate and respectful. He tirelessly encouraged his students, giving them an excellent foundation in the field of accelerator physics to prepare them for their professional lives. The success and prospects of young physicists were a constant concern for him; in fact he believed they were absolutely essential. His commitment to students and his passion for quality teaching in accelerator physics were again in evidence in the years when Daniel was the head of the CERN Accelerator School (CAS), a role in which he s...

  15. Daniel Bois (1929-2008)

    CERN Multimedia

    2008-01-01

    We were deeply saddened to hear of the death of our former colleague, Daniel Bois, at his home in Crozet on 27 March, in his 79th year. Daniel Bois, trained in precision mechanics, arrived at CERN in November 1954 and was assigned to the Central Workshop. His remarkable talent for precision measurements prompted his then boss to point him in the direction of the Survey Group, which was working on the construction of the PS at the time. He remained with this Group until he retired. His flair for measurements and his constant need to create and invent led him to fabricate novel tools for aligning the magnets of the PS or the ISR, even if this meant challenging the conventional methods of the day. One of his inventions was the "distinvar", a length-measuring tool that was widely used up until the construction of LEP. We are also indebted to Daniel for the use of stretched wires to align magnets, a technique that is still intensively ...

  16. Professing English a life of Roy Daniells

    CERN Document Server

    Djwa, Sandra

    2002-01-01

    Roy Daniells (1902-1979), an English professor who finished his career at the University of British Columbia, and an outstanding scholar, teacher and poet, influenced at least four generations of students.

  17. Daniel Radcliffe sirgub mister Potteriks / Timo Diener

    Index Scriptorium Estoniae

    Diener, Timo

    2003-01-01

    13-aastane inglise poiss Daniel Radcliff, kes mängib Harry Potterit ka J.K. Rowling'u Harry Potteri lugude teises filmis "Harry Potter ja saladuste kamber" ("Harry Potter and the Chamber of Secrets") : režissöör Chris Columbus : Ameerika Ühendriigid 2002

  18. Daniel Bernoulli’s epidemiological model revisited

    NARCIS (Netherlands)

    Dietz, K.; Heesterbeek, J.A.P.

    2002-01-01

    The seminal paper by Daniel Bernoulli published in 1766 is put into a new perspective. After a short account of smallpox inoculation and of Bernoulli’s life, the motivation for that paper and its impact are described. It determines the age-specific equilibrium prevalence of immune individuals in an

  19. An analytically tractable model for community ecology with many species

    Science.gov (United States)

    Dickens, Benjamin; Fisher, Charles; Mehta, Pankaj; Pankaj Mehta Biophysics Theory Group Team

    A fundamental problem in community ecology is to understand how ecological processes such as selection, drift, and immigration yield observed patterns in species composition and diversity. Here, we present an analytically tractable, presence-absence (PA) model for community assembly and use it to ask how ecological traits such as the strength of competition, diversity in competition, and stochasticity affect species composition in a community. In our PA model, we treat species as stochastic binary variables that can either be present or absent in a community: species can immigrate into the community from a regional species pool and can go extinct due to competition and stochasticity. Despite its simplicity, the PA model reproduces the qualitative features of more complicated models of community assembly. In agreement with recent work on large, competitive Lotka-Volterra systems, the PA model exhibits distinct ecological behaviors organized around a special (``critical'') point corresponding to Hubbell's neutral theory of biodiversity. Our results suggest that the concepts of ``phases'' and phase diagrams can provide a powerful framework for thinking about community ecology and that the PA model captures the essential ecological dynamics of community assembly. Pm was supported by a Simons Investigator in the Mathematical Modeling of Living Systems and a Sloan Research Fellowship.

  20. Analysis of tractable distortion metrics for EEG compression applications

    International Nuclear Information System (INIS)

    Bazán-Prieto, Carlos; Blanco-Velasco, Manuel; Cruz-Roldán, Fernando; Cárdenas-Barrera, Julián

    2012-01-01

    Coding distortion in lossy electroencephalographic (EEG) signal compression methods is evaluated through tractable objective criteria. The percentage root-mean-square difference, which is a global and relative indicator of the quality held by reconstructed waveforms, is the most widely used criterion. However, this parameter does not ensure compliance with clinical standard guidelines that specify limits to allowable noise in EEG recordings. As a result, expert clinicians may have difficulties interpreting the resulting distortion of the EEG for a given value of this parameter. Conversely, the root-mean-square error is an alternative criterion that quantifies distortion in understandable units. In this paper, we demonstrate that the root-mean-square error is better suited to control and to assess the distortion introduced by compression methods. The experiments conducted in this paper show that the use of the root-mean-square error as target parameter in EEG compression allows both clinicians and scientists to infer whether coding error is clinically acceptable or not at no cost for the compression ratio. (paper)

  1. Trad. Daniele Vitale, Arquitectos portugueses. Identidade, nacionalidade, modernidade

    OpenAIRE

    Marnoto, Rita

    2010-01-01

    (2010. Trad.). Daniele Vitale, Arquitectos portugueses. Identidade, nacionalidade, modernidade, JA Jornal Arquitectos. Publicação Trimestral da Ordem dos Arquitectos Portugal, 237, 93-101. ISSN 0870 1504 Trad. Daniele Vitale

  2. A Tractable Disequilbrium Framework for Integrating Computational Thermodynamics and Geodynamics

    Science.gov (United States)

    Spiegelman, M. W.; Tweed, L. E. L.; Evans, O.; Kelemen, P. B.; Wilson, C. R.

    2017-12-01

    The consistent integration of computational thermodynamics and geodynamics is essential for exploring and understanding a wide range of processes from high-PT magma dynamics in the convecting mantle to low-PT reactive alteration of the brittle crust. Nevertheless, considerable challenges remain for coupling thermodynamics and fluid-solid mechanics within computationally tractable and insightful models. Here we report on a new effort, part of the ENKI project, that provides a roadmap for developing flexible geodynamic models of varying complexity that are thermodynamically consistent with established thermodynamic models. The basic theory is derived from the disequilibrium thermodynamics of De Groot and Mazur (1984), similar to Rudge et. al (2011, GJI), but extends that theory to include more general rheologies, multiple solid (and liquid) phases and explicit chemical reactions to describe interphase exchange. Specifying stoichiometric reactions clearly defines the compositions of reactants and products and allows the affinity of each reaction (A = -Δ/Gr) to be used as a scalar measure of disequilibrium. This approach only requires thermodynamic models to return chemical potentials of all components and phases (as well as thermodynamic quantities for each phase e.g. densities, heat capacity, entropies), but is not constrained to be in thermodynamic equilibrium. Allowing meta-stable phases mitigates some of the computational issues involved with the introduction and exhaustion of phases. Nevertheless, for closed systems, these problems are guaranteed to evolve to the same equilibria predicted by equilibrium thermodynamics. Here we illustrate the behavior of this theory for a range of simple problems (constructed with our open-source model builder TerraFERMA) that model poro-viscous behavior in the well understood Fo-Fa binary phase loop. Other contributions in this session will explore a range of models with more petrologically interesting phase diagrams as well as

  3. SHORT COMMUNICATION REPORT Tella & daniel type set

    African Journals Online (AJOL)

    Dr Ahmed

    WORLD JOURNAL VOL 2(NO2) 2007 www.sciecnceworldjournal.com. Tella & Daniel (2007) SWJ:28-30. Multisets and Inequalities. P age. 29. The powerset axiom. ∀ ∀ ∃. ∧∀. ∈ ↔ ⊆. z x y Set y. z z y. z x. ( ( ). (. )) . In other words, for every mset x , there is a set whose elements are exactly the msubsets of x . The set y is ...

  4. Galvanic cells: setting up the Daniell cell.

    OpenAIRE

    Milla González, Miguel

    2008-01-01

    With the reagents (0.05M copper nitrate solution, 0.05M zinc nitrate solution) and material (glassware, potentiometer, electric wire) availabe in the laboratory, the user must set up the Daniell cell. Different configurations can be possible if the half cells are filled with either electrolyte solution. The cell connections to the measuring device can also be changed. In all instances, an explanation of the set up cell is obtained as well as of the measured potential difference.

  5. The eschatological opponent of Daniel and the Antichrist of the Syriac Apocalypse of Daniel

    Directory of Open Access Journals (Sweden)

    Sara Daiane Silva José

    2014-12-01

    Full Text Available The Syriac Apocalypse of Daniel (Syr Apoc Dan, a Christian apocalypse from the seventh century of Common Era, is clearly tributary to the canonical book of Daniel (Dn. In its turn, Dn provided the figure of an eschatological opponent who was re-signified in Christianity: the Antichrist. The cosmic dimensions of the malevolent character of oppressive tyrant of Dn – his arrogance against the gods, the abomination of desolation, military conquests and persecutions of the saints, the change of the cosmic order, the time of the reign and death of the tyrant – are considered in this work compared with the Antichrist of the Syr Apoc Dan.

  6. Daniel Quinn and the Library of Babel

    Directory of Open Access Journals (Sweden)

    Leonardo Vieira de Almeida

    2011-06-01

    Full Text Available In “City of Glass”, Paul Auster's novel, the task of the detective and the reader mingle into the attempt to decipher an ever-drifting cartography. The city map on which Daniel Quinn must follow the clues of the Peter Stillman’s mystery becomes the space which represents the impossibility of any answer. To read New York is walking through a Babel of texts, a list of citations that disarticulate the city and Quinn in their quest for the incommunicable Name.

  7. Daniel Kreig : ja budu sovsem drugim Dzheimsom Bondom / Daniel Craig ; interv. Mihhail Ozerov

    Index Scriptorium Estoniae

    Craig, Daniel

    2006-01-01

    Briti näitleja Daniel Craig on valitud kuuendaks James Bondi osatäitjaks. Ian Flemingi "Casino Royale" taasekraniseeringu režissöör on Martin Campbell. Lisaks lühike ülevaade Bondi kehastanud näitlejatest

  8. Maksumaksja raha sihtasutustes / Daniel Vaarik ; interv. Kristi Timmusk

    Index Scriptorium Estoniae

    Vaarik, Daniel, 1973-

    1999-01-01

    Rahandusministeeriumi nõunik Daniel Vaarik selgitab, kui palju raha erinevatesse sihtasutustesse eraldatakse ning kuidas kontrollitakse selle raha kasutamist. Tabel: 1999. a. riigieelarvest finantseeritavad sihtasutused

  9. Kõik on koreograafia / Daniel Linehan ; intervjueerinud Liina Luhats

    Index Scriptorium Estoniae

    Linehan, Daniel

    2011-01-01

    Intervjuu 12. rahvusvahelise Augusti tantsufestivali raames 21. augustil Kanuti Gildi saalis edenduvate lavastuste "Montage for Three" ja "Not About Everything" koreograafi ja tantsija Daniel Linehaniga

  10. Space-Bounded Church-Turing Thesis and Computational Tractability of Closed Systems.

    Science.gov (United States)

    Braverman, Mark; Schneider, Jonathan; Rojas, Cristóbal

    2015-08-28

    We report a new limitation on the ability of physical systems to perform computation-one that is based on generalizing the notion of memory, or storage space, available to the system to perform the computation. Roughly, we define memory as the maximal amount of information that the evolving system can carry from one instant to the next. We show that memory is a limiting factor in computation even in lieu of any time limitations on the evolving system-such as when considering its equilibrium regime. We call this limitation the space-bounded Church-Turing thesis (SBCT). The SBCT is supported by a simulation assertion (SA), which states that predicting the long-term behavior of bounded-memory systems is computationally tractable. In particular, one corollary of SA is an explicit bound on the computational hardness of the long-term behavior of a discrete-time finite-dimensional dynamical system that is affected by noise. We prove such a bound explicitly.

  11. Daniel Stufflebeam and The World Bank.

    Science.gov (United States)

    Russon, Craig; Russon, Karen

    2018-04-01

    Circa 2000 when The Evaluation Center on the campus of Western Michigan University was undergoing a renovation, staff were encouraged to clean out their filing cabinets. One of the authors rescued two manila files from the garbage dealing with a presentation that Daniel Stufflebeam made to The World Bank on 13 December 1993 and a subsequent World Bank conference on evaluation and development in which he participated 5-6 December 1994. In these documents, Dan set out some of his early thinking on international evaluation and other topics. The authors used these materials to write a tribute article to Dan publishing some of these ideas for the historical record. Copyright © 2018 Elsevier Ltd. All rights reserved.

  12. Interview with Professor Dr. Daniel Spreng

    International Nuclear Information System (INIS)

    Nagel, C.; Kilchmann, A.

    2004-01-01

    This interview with Professor Dr. Daniel Spreng of the Center for Energy Policy and Economics (CEPE) in Zuerich, Switzerland, deals with questions concerning research in the area of energy economics. In particular, the situation in Switzerland, where mains-connected sources of energy such as electricity and gas play an important role in energy supply, is looked at in the light of market liberalisation. Various approaches to the liberalisation of gas and electricity systems are discussed and the costs of liberalised supply systems are compared with those of the present monopolistic situation. Also, energy reserves and the use of the gas distribution system in a future hydrogen-based energy supply scenario are looked at. Projects currently being worked on at the CEPE are reviewed

  13. Vom Dämonischen. Zur politischen Medientheorie des Daniel Suarez

    Directory of Open Access Journals (Sweden)

    Alessandro Barberi

    2012-12-01

    Full Text Available Die Romane des Programmierers Daniel Suarez sind weit mehr als reine Fiktionen. Seine terminatorischen Inszenierungen des Endkampfs zwischen Maschinen und Menschen basieren auf äußerst realen Studien zu derzeitigen (Kriegs-Technologien, die als politische Steuerungsmedien eingesetzt werden.This is a review of Daniel Suarez's books Daemon (2009, Darknet (2011 and Kill Decision (2013.

  14. Daniel L. Schacter: Award for Distinguished Scientific Contributions

    Science.gov (United States)

    American Psychologist, 2012

    2012-01-01

    Presents Daniel L. Schacter as one of the winners of the American Psychological Association's Award for Distinguished Scientific Contributions (2012). Daniel L. Schacter's major theoretical and empirical contributions include groundbreaking research on the psychological and neural foundations of implicit and explicit memory, memory distortions and…

  15. Fluor Daniel Hanford contract standards/requirements identification document

    Energy Technology Data Exchange (ETDEWEB)

    Bennett, G.L.

    1997-04-24

    This document, the Standards/Requirements Identification Document (S/RID) for the Fluor Daniel Hanford Contract, represents the necessary and sufficient requirements to provide an adequate level of protection of the worker, public health and safety, and the environment.

  16. Putting medical knowledge at nurses' fingertips: Glenville Daniel ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    A Canadian program helps improve health care in the Caribbean Nursing faculty ... -supported research to improve the quality of care in Caribbean hospitals by ... are Dr Hazel Roberts and information technology consultant Glenville Daniel.

  17. Fluor Daniel Hanford company standards requirements identification document

    International Nuclear Information System (INIS)

    Bennett, G.L.

    1997-01-01

    This document, the Standards/Requirements Identification Document (S/RID) for the Fluor Daniel Hanford Contract, represents the necessary and sufficient requirements to provide an adequate level of protection of the worker, public health and safety, and the environment

  18. A clash of gods – Conceptualising space in Daniel 1

    African Journals Online (AJOL)

    2014-02-25

    Feb 25, 2014 ... as an apocalyptical work that is filled with symbolic .... represents the cosmological balance that was created by. Yahweh when he ... Daniel, and his friends are given Babylonian names. ... Belshazzar: 'may Bel protect his life.'.

  19. A Tractable Method for Describing Complex Couplings between Neurons and Population Rate.

    Science.gov (United States)

    Gardella, Christophe; Marre, Olivier; Mora, Thierry

    2016-01-01

    Neurons within a population are strongly correlated, but how to simply capture these correlations is still a matter of debate. Recent studies have shown that the activity of each cell is influenced by the population rate, defined as the summed activity of all neurons in the population. However, an explicit, tractable model for these interactions is still lacking. Here we build a probabilistic model of population activity that reproduces the firing rate of each cell, the distribution of the population rate, and the linear coupling between them. This model is tractable, meaning that its parameters can be learned in a few seconds on a standard computer even for large population recordings. We inferred our model for a population of 160 neurons in the salamander retina. In this population, single-cell firing rates depended in unexpected ways on the population rate. In particular, some cells had a preferred population rate at which they were most likely to fire. These complex dependencies could not be explained by a linear coupling between the cell and the population rate. We designed a more general, still tractable model that could fully account for these nonlinear dependencies. We thus provide a simple and computationally tractable way to learn models that reproduce the dependence of each neuron on the population rate.

  20. Daniel 9 as part of an apocalyptic book?

    Directory of Open Access Journals (Sweden)

    Marius Nel

    2013-02-01

    Full Text Available Daniel 9 relates how Daniel studies the Hebrew Holy Scriptures and finds the prophecy of Jeremiah that Jerusalem will lie desolate for seventy years. He reacts by devoting himself to prayer and fasting in order to remind God of this promise of restoring his people. The better part of the chapter is dedicated to the contents of his prayer. During the prayer, the man, Gabriel, appears with the intent to give Daniel an understanding of the meaning of the seventy years, which is the measure of the punishment of Israel�s transgression and sin and which will end with eternal righteousness, when the Holy of Holies will be anointed. The Book of Daniel consists of two sections: the tales of the first six chapters and the visions of the last six chapters. This article asked the question: what role does Daniel 9 play as a part of the apocalyptic section of the book? Is Daniel�s prayer and Gabriel�s revelation apocalyptically conditioned? Why did the author or compiler include it in the book and, especially, in the second, apocalyptic section of the book? The conclusion of this article was that Daniel 9 was placed intentionally by the compiler in the latter half of the book because of the revelation about the seventy weeks, which is in line with the last three chapters� indication of the end times and Israel�s elevation to become the ruler of the earth. Several arguments were formulated to support this conclusion.

  1. Tractable flux-driven temperature, density, and rotation profile evolution with the quasilinear gyrokinetic transport model QuaLiKiz

    Science.gov (United States)

    Citrin, J.; Bourdelle, C.; Casson, F. J.; Angioni, C.; Bonanomi, N.; Camenen, Y.; Garbet, X.; Garzotti, L.; Görler, T.; Gürcan, O.; Koechl, F.; Imbeaux, F.; Linder, O.; van de Plassche, K.; Strand, P.; Szepesi, G.; Contributors, JET

    2017-12-01

    Quasilinear turbulent transport models are a successful tool for prediction of core tokamak plasma profiles in many regimes. Their success hinges on the reproduction of local nonlinear gyrokinetic fluxes. We focus on significant progress in the quasilinear gyrokinetic transport model QuaLiKiz (Bourdelle et al 2016 Plasma Phys. Control. Fusion 58 014036), which employs an approximated solution of the mode structures to significantly speed up computation time compared to full linear gyrokinetic solvers. Optimisation of the dispersion relation solution algorithm within integrated modelling applications leads to flux calculations × {10}6-7 faster than local nonlinear simulations. This allows tractable simulation of flux-driven dynamic profile evolution including all transport channels: ion and electron heat, main particles, impurities, and momentum. Furthermore, QuaLiKiz now includes the impact of rotation and temperature anisotropy induced poloidal asymmetry on heavy impurity transport, important for W-transport applications. Application within the JETTO integrated modelling code results in 1 s of JET plasma simulation within 10 h using 10 CPUs. Simultaneous predictions of core density, temperature, and toroidal rotation profiles for both JET hybrid and baseline experiments are presented, covering both ion and electron turbulence scales. The simulations are successfully compared to measured profiles, with agreement mostly in the 5%-25% range according to standard figures of merit. QuaLiKiz is now open source and available at www.qualikiz.com.

  2. A clash of gods – Conceptualising space in Daniel 1

    Directory of Open Access Journals (Sweden)

    J. Jacobus de Bruyn

    2014-02-01

    Full Text Available Applying cognitive linguistics to the text of Daniel 1 is a useful exegetical aid for a better understanding of the narrative. Studying the author’s use of ‘spatial markers’ such as ‘Jerusalem’, ‘Babylon’, ‘temple’ and some other spatial features, makes it possible to reconstruct the narrative into a ‘cognitive spatial frameset’. In this particular exegetical frameset, Daniel 1 can be described as a narrated confrontation between Yahweh and the gods of Babylon. Within this conflict between deities, Daniel, the divine agent becomes a spatial embodiment of Yahweh’s power and authority to act inside a hostile, non-Israelite environment and at the same time undermines the authority of the Babylonian gods.

  3. Obituary: Daniel E. Harris (1934 - 2015)

    Science.gov (United States)

    Madrid, Juan P.; Massaro, Francesco; Cheung, Teddy

    Our friend and colleague, Daniel E. Harris, died on December 6th 2015. Dan was a passionate astronomer and world traveller. He led a rich and scientifically productive life until the end. Dan was the first person to receive a PhD in radio astronomy at Caltech where he was a student of John Bolton, one of the fathers of Radio Astronomy and the founder of the Owens Valley Radio Observatory that Dan used for his thesis and first publications. One of Dan's first projects was with Jim Roberts to measure improved positions and flux densities for radio sources in the newly released 3C catalog. During this study, Dan discovered the first flat spectrum radio sources, which he named CTA 21, CTA 26, and CTA 102 and which were later identified as quasars. His PhD thesis resulted in the then definitive study of the evolution of supernova remnants. Later Dan worked on radio galaxies and active galactic nuclei (AGN) first at radio and then at X-ray wavelengths with the Einstein, ROSAT, and Chandra Observatories where he pioneered the new field of relativistic X-ray jets and how they relate to radio galaxies and AGN. After graduating from Caltech in 1961, Dan wanted to see the world. Beginning in 1962, Dan lived in Bologna, Italy, where he worked with Professor Marcello Ceccarelli and the radio astronomy group and was active in the construction of the Northern Cross Radio Observatory ("la Croce"), the first Italian radio telescope. He left Bologna in the Spring of 1964 as his friends remember him to "divenir del mondo esperto e de li vizi umani e del valore"1, as he joined V. Radhakrishnan (Rad) and Dave Morris to sail in a 36-ft trimaran from England to Puerto Rico where he took a position at the Arecibo Observatory working with Marshall Cohen on interplanetary scintillations. After five years at the Arecibo Observatory, Dan went on to work at the Argentinian Institute of Radio Astronomy, Harvard University, the Dwingeloo Radio Observatory in the Netherlands, and at the Dominion

  4. Obituary: John Daniel Kraus, 1910-2004

    Science.gov (United States)

    Kraus, John D., Jr.; Marhefka, Ronald J.

    2005-12-01

    John Daniel Kraus, 94, of Delaware, Ohio, director of the Ohio State University "Big Ear" Radio Observatory, physicist, inventor, and environmentalist died 18 July 2004 at his home in Delaware, Ohio. He was born on 28 June 1910 in Ann Arbor, Michigan. He received a Bachelor of Science in 1930, a Master of Science in 1931, and a PhD in physics in 1933 (at 23 years of age), all from the University of Michigan, Ann Arbor. During the 1930s at Michigan, he was involved in physics projects, antenna consulting, and in atomic-particle-accelerator research using the University of Michigan's premier cyclotron. Throughout the late 1920s and the 1930s, John was an avid radio amateur with call sign W8JK. He was back on the air in the 1970s. In 2001 the amateur radio magazine CQ named him to the inaugural class of its Amateur Radio Hall of Fame. He developed many widely used innovative antennas. The "8JK closely spaced array" and the "corner reflector" were among his early designs. Edwin H. Armstrong wrote John in July 1941 indicating in part, "I have read with interest your article in the Proceedings of the Institute on the corner reflector...Please let me congratulate you on a very fine piece of work." Perhaps John's most famous invention, and a product of his intuitive reasoning process, is the helical antenna, widely used in space communications, on global positioning satellites, and for other applications. During World War II, John was in Washington, DC as a civilian scientist with the U.S. Navy responsible for "degaussing" the electromagnetic fields of steel ships to make them safe from magnetic mines. He also worked on radar countermeasures at Harvard University's Radio Research Laboratory. He received the U.S. Navy Meritorious Civilian Service Award for his war work. In 1946 he took a faculty position at Ohio State University, becoming professor in 1949, and retiring in 1980 as McDougal Professor Emeritus of Electrical Engineering and Astronomy. Even so, he never retired

  5. Balti riikide vabadus ei ohusta Venemaad / Daniel Fried

    Index Scriptorium Estoniae

    Fried, Daniel, 1952-

    2007-01-01

    Ilmunud ka: The Baltic Times, 21. juuni 2007, lk. 15. Ameerika Ühendriikide asevälisminister Euroopa ja Euraasia asjus Daniel Fried Balti riikide tunnustamisest, vabadusest ja suveräänsusest. Venemaa huvides on olla ümbritsetud rahulikest ja jõukatest demokraatiatest, ähvardustele ja sanktsioonidele ei tohi jätta ruumi

  6. Galvexi terasekuningas / Daniel Brain ; interv. Toivo Tänavsuu

    Index Scriptorium Estoniae

    Brain, Daniel

    2003-01-01

    Galvex Estonia juht Daniel Brain vastab küsimusetele, mis puudutavad toorterase toomist USA-st, Galvexi kliente, ettevõttega seotud skandaale, meedias esitatud süüdistust metallivarguse kohta ettevõttes. Vt. samas: Eesti hakkas meeldima. Lisa: Galvex

  7. In memoriam Prof. Dr. Leo Daniel Brongersma (1907-1994)

    NARCIS (Netherlands)

    Hoogmoed, M.S.

    1995-01-01

    A biography of Leo Daniel Brongersma is given, highlighting his significance for herpetology worldwide, and especially for snake anatomy, sea turtle distribution, faunistics of New Guinea and IndoAustralia. Lists of patronyms, of species named by Brongersma and of his publications are given. Also

  8. Daniel Day-Lewis - veri peab voolama / Kristiina Davidjants

    Index Scriptorium Estoniae

    Davidjants, Kristiina, 1974-

    2008-01-01

    Iiri-juudi näitleja Daniel Day-Lewis, kes võitis oma rolliga P.T. Andersoni filmis "Veri hakkab voolama" parima meespeaosatäitja Oscari. Tema põhjalikust tööst rollidega läbi tema filmiloomingu

  9. Blond Bond Daniel Craig tungib buldooserina edasi / Triin Tael

    Index Scriptorium Estoniae

    Tael, Triin

    2006-01-01

    Uus Bondi-film "007: Casino Royale" esilinastus Londonis 17. novembril, režissööriks Martin Campbell. Lisaks sõnum "Elizabeth II jäi Bondile truuks", ülevaade "James Bond läbi aegade" ja peaosatäitja lühitutvustus "Daniel Craig"

  10. Daniel Webster Middle School: More than Cosmetic Improvements

    Science.gov (United States)

    Rourke, James; Boone, Elizabeth

    2009-01-01

    "Webster needs an extreme makeover," students told Principal Joan Brixey upon her arrival at Daniel Webster Middle School in Waukegan, Illinois, three short years ago. The message came in a student-produced video that highlighted things that needed repair at Webster. Brixey was already a firm believer in the proposition that students…

  11. Die hormoonfabriek. Saskia Goldschmidt. Vertaal deur Daniel Hugo ...

    African Journals Online (AJOL)

    wat dan voortgaan met kommentaar op. “die skrywer” se boek. Die onderhawige teks, Die Hormoonfabriek, is Daniel Hugo se Afrikaanse vertaling uit Nederlands van Saskia Goldschmidt se gelyknamige debuutroman.Dit is dus, soos alle vertaalde romans, minstens twee maal geskryf: eers in Nederlands deur Goldschmidt, ...

  12. President Meri näitas USA-le vabaduse ilu / Daniel Fried ; interv. Kaarel Kaas

    Index Scriptorium Estoniae

    Fried, Daniel, 1952-

    2006-01-01

    USA abivälisminister Daniel Fried USA välispoliitika ühest eesmärgist - demokraatia levitamisest maailmas, demokraatia olukorrast Venemaal ning USA ja Venemaa vahelistest suhetest. Lisa: Daniel Fried

  13. Daniel Fried peab Euroopa vastust Gruusia sõjale tugevaks / Evelyn Kaldoja

    Index Scriptorium Estoniae

    Kaldoja, Evelyn, 1980-

    2008-01-01

    Eestit külastanud USA asevälisminister Daniel Fried leidis, et Euroopa reaktsioon Gruusias toimunule oli tugev ja efektiivne. Daniel Fried kohtus president Toomas Hendrik Ilvese, peaminister Andrus Ansipi ja välisminister Urmas Paetiga. Vt. samas: Daniel Fried: CV

  14. 77 FR 13625 - Notice of Inventory Completion: USDA Forest Service, Daniel Boone National Forest, Winchester, KY

    Science.gov (United States)

    2012-03-07

    ... Forest Service, Daniel Boone National Forest, Winchester, KY AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: The U.S. Department of Agriculture, Forest Service, Daniel Boone National Forest... culturally affiliated with the human remains may contact the Daniel Boone National Forest, Winchester, KY...

  15. An overview of the China Bioanalytical Forum: interview with Daniel Tang.

    Science.gov (United States)

    Tang, Daniel

    2017-02-01

    Daniel Tang talks to Sankeetha Nadarajah, Commissioning Editor (Bioanalysis), regarding the China Bioanalysis Forum (CBF), in which Daniel was one of the co-founders and remains as its co-chair. Daniel is currently the CEO of UP Pharma, a biologics focused bioanalytical CRO in China.

  16. Fuel management in CANDU reactors: Daniel Rozon's contribution

    International Nuclear Information System (INIS)

    Rozon, D.; Varin, E.; Chambon, R.

    2010-01-01

    The CANDU fuel management optimization problem is in many ways different from LWRs fuel management, because of the on-line refueling and the complete 3-D geometry problem. Daniel Rozon was an outstanding leader in the understanding and resolution of this optimization problem and remained during his entire career. Daniel Rozon and his students have used the generalized adjoint formalism implemented in standard mathematical programming methods to solve the optimization of the exit burnup in the reactor as well as the optimization of control rod worth or fuel enrichment. We have summarized here the theoretical basis of fuel management and resolution methods, the latest approaches of optimization and results as obtained using the OPTEX code. (author)

  17. Daniel Gogny's vision for a microscopic theory of fission

    Science.gov (United States)

    Younes, W.

    2017-05-01

    Daniel Gogny made many contributions to our understanding of nuclear fission over a span of 35 years. This paper reviews some of those contributions, focusing in particular on fission dynamics, the challenges of describing scission in a quantum-mechanical context, and the calculation of fragment properties such as their mass, kinetic, and excitation energy distributions. The generator coordinate method provides the common theoretical framework within which these various aspects of fission are formulated.

  18. Daniel Kahneman, un psychologue en territoire économique

    OpenAIRE

    Frederic Teulon

    2014-01-01

    Daniel Kahneman est un psychologue et économiste américain, spécialiste de l’étude des comportements en situation d’incertitude. Il a conduit ses principaux travaux avec Amos Tversky. Il a reçu le prix Nobel d’économie 2002. Les deux articles fondateurs de Kahneman et Tversky (1974 et 1979) ont donné à la psychologie économique expérimentale ses lettres de noblesse.

  19. CONVERSATORIO CON EL PROFESOR DANIEL FRANCISCO JARAMILLO JARAMILLO

    OpenAIRE

    VICTOR IGNACIO LÓPEZ RÍOS

    2016-01-01

    Daniel Francisco Jaramillo Jaramillo es ingeniero agronomo de la Universidad Nacional de Colombia, especialista de Fotointerpretacion aplicada a estudios de suelos, Magister en Suelos y Aguas de la Universidad Nacional de Colombia, sede Palmira. Ha participado como reconocedor de suelos en levantamientos realizados en varias regiones de los departamentos de Antioquia, Valle del Cauca, Cundinamarca, Huila. Caldas y La Guajira, y desde hace 35 años esta dedicado a la docencia, en pregr...

  20. The Impact of the work of Daniel KAHNEMAN in administration

    Directory of Open Access Journals (Sweden)

    Tomás Chahin

    2016-06-01

    Full Text Available The study of decision-making has expanded empirical knowledge on the subject through research and studies that have offered explanations to many of the questions that are usually made. One of those questions had to do with whether the decision of the executive was only arational type, or there was also some intuition and emotion when deciding.The aim of this work is to consider the contributions madeby Daniel Kahneman and several of his collaborators, especially those related to administration, in order to start findingpossible  answers to the above mentioned question.The development of the proposed topic is analysed through the available literature on Daniel Kahneman and colleagues’ thinking. Different pieces of work that integrate their ideas, highlighting those thatspecially impact on Administration are mentioned.As a result of this work we see the relationship thatnaturally exists between what Kahneman called System 1 (intuitive and System 2 (rational, exposing the errors and biases of quick thinking and influence of the intuitive on our thinking and behavior.Key Words: Daniel Kahneman, Decision-making, Biases of thought. 

  1. Evidence for the effect of serotonin receptor 1A gene (HTR1A) polymorphism on tractability in Thoroughbred horses.

    Science.gov (United States)

    Hori, Y; Tozaki, T; Nambo, Y; Sato, F; Ishimaru, M; Inoue-Murayama, M; Fujita, K

    2016-02-01

    Tractability, or how easily animals can be trained and controlled, is an important behavioural trait for the management and training of domestic animals, but its genetic basis remains unclear. Polymorphisms in the serotonin receptor 1A gene (HTR1A) have been associated with individual variability in anxiety-related traits in several species. In this study, we examined the association between HTR1A polymorphisms and tractability in Thoroughbred horses. We assessed the tractability of 167 one-year-old horses reared at a training centre for racehorses using a questionnaire consisting of 17 items. A principal components analysis of answers contracted the data to five principal component (PC) scores. We genotyped two non-synonymous single nucleotide polymorphisms (SNPs) in the horse HTR1A coding region. We found that one of the two SNPs, c.709G>A, which causes an amino acid change at the intracellular region of the receptor, was significantly associated with scores of four of five PCs in fillies (all Ps Horses carrying an A allele at c.709G>A showed lower tractability. This result provides the first evidence that a polymorphism in a serotonin-related gene may affect tractability in horses with the effect partially different depending on sex. © 2015 Stichting International Foundation for Animal Genetics.

  2. Whole analogy between Daniel Bernoulli solution and direct kinematics solution

    Directory of Open Access Journals (Sweden)

    Filipović Mirjana

    2010-01-01

    Full Text Available In this paper, the relationship between the original Euler-Bernoulli's rod equation and contemporary knowledge is established. The solution which Daniel Bernoulli defined for the simplest conditions is essentially the solution of 'direct kinematics'. For this reason, special attention is devoted to dynamics and kinematics of elastic mechanisms configuration. The Euler-Bernoulli equation and its solution (used in literature for a long time should be expanded according to the requirements of the mechanisms motion complexity. The elastic deformation is a dynamic value that depends on the total mechanism movements dynamics. Mathematical model of the actuators comprises also elasticity forces.

  3. [Human bartonellosis: before and after Daniel Alcides Carrion].

    Science.gov (United States)

    Takano Morón, Juan

    2014-04-01

    This is a review of bibliographic aspects associated to the knowledge about human bartonelosis before and after the death of Daniel Alcides Carrion. Emphasis is placed on stimulus in the development of medical research in Peru by the self-inoculation and subsequent death of Carrion especially in relation to human bartonellosis, conducted by Peruvian researchers and others around the world. The review includes the basic area of knowledge about the bacteria that causes the illness, the host response to infection as well as the biphasic behavior of the disease. The revised bibliography includes contributions to the knowledge of the disease in the last 100 years, now known with the eponym "Carrion's disease".

  4. Daniel Dennett: intentionality system. An interpretation of intentional strategy

    Directory of Open Access Journals (Sweden)

    Viorel ROTILĂ

    2015-07-01

    Full Text Available In this article, we show some of the meanings in which Daniel Dennett uses the term intentionality, in an attempt to establish to it the quality of key concept for understanding the mind, namely consciousness. By analyzing the American thinker’s ideas, we consider that in all of them an intentionality system can be identified, which includes the approaches and different names that he dedicates to this concept. Qualitative differences in the discourse about intentionality can open the way of the approach of intentionality from an evolutionary perspective, indicating the changes over time. The intentionality system is a proposal for understanding Dennett’s thinking in a coherent paradigm.

  5. Book reviews: Daniel Kahneman - Thinking, Fast and Slow

    OpenAIRE

    Cristian Uta

    2016-01-01

    Although he has won the Nobel Prize for Economy (for his works on the decision theory), Daniel Kahneman is, surprisingly, a psychologist. Thinking, Fast and Slow presents us ideas and theories regarding the way in which the mind works and how this thing affects us when making a decision. In his opinion, the human thinking is a dual process, duality presented from three different perspec-tives. First (as the title suggests it), there are highlighted the differences between the fast and the slo...

  6. Processing of (in)tractable polymers using reactive solvents, 4: Structure development in the model system poly(ethylene)/styrene

    NARCIS (Netherlands)

    Goossens, J.G.P.; Rastogi, S.; Meijer, H.E.H.; Lemstra, P.J.

    1998-01-01

    The use of reactive solvents provides a unique opportunity to extend the processing characteristics of both intractable and standard (tractable) polymers beyond existing limits. The polymer to be processed is dissolved in the reactive solvent (monomer) and the solution is transferred into a mould.

  7. Zebrafish yolk lipid processing: a tractable tool for the study of vertebrate lipid transport and metabolism

    Directory of Open Access Journals (Sweden)

    Rosa L. Miyares

    2014-07-01

    Full Text Available Dyslipidemias are a major cause of morbidity and mortality in the world, particularly in developed nations. Investigating lipid and lipoprotein metabolism in experimentally tractable animal models is a crucial step towards understanding and treating human dyslipidemias. The zebrafish, a well-established embryological model, is emerging as a notable system for studies of lipid metabolism. Here, we describe the value of the lecithotrophic, or yolk-metabolizing, stages of the zebrafish as a model for studying lipid metabolism and lipoprotein transport. We demonstrate methods to assay yolk lipid metabolism in embryonic and larval zebrafish. Injection of labeled fatty acids into the zebrafish yolk promotes efficient uptake into the circulation and rapid metabolism. Using a genetic model for abetalipoproteinemia, we show that the uptake of labeled fatty acids into the circulation is dependent on lipoprotein production. Furthermore, we examine the metabolic fate of exogenously delivered fatty acids by assaying their incorporation into complex lipids. Moreover, we demonstrate that this technique is amenable to genetic and pharmacologic studies.

  8. Analytical Evaluation of Chunk-Based Tractable Multi-cell OFDMA system

    Directory of Open Access Journals (Sweden)

    P.Kavitha

    2018-04-01

    Full Text Available This paper evaluates thoroughly the performance of multi-cell OFDMA system. The two types of deployment in multi-cell OFDMA system, such as Strict Fractional Frequency Reuse (FFR and Soft FFR (SFR were evaluated. In order to model the base station locations, homogeneous Poisson point processes were used, i.e. tractable model instead of hexagonal grid was considered. In order to reduce complexity, chunk-based resource allocation scheme was embedded. Each cell divides the users into the users of the central cell area and the users of the cell edge area according to their average received Signal to Interference and Noise Ratio (SINR compared with FFR threshold. The primary stage of the analysis includes the spectral efficiency’s expression deriving from these two deployment scenarios, followed by the analysis with the use of coverage probability. However, the improvement of spectral efficiency is achieved in the case of SFR. On the contrary, coverage probability is far improved by using strict FFR scheme. Through numerical anaysis, We have shown that the optimal FFR threshold to achieve the highest spectral efficiency was 12 dB for both Strict FFR as well as SFR.

  9. Understanding Of Wisdom In The Book Of Daniel

    Directory of Open Access Journals (Sweden)

    Peniel C.D. Maiaweng

    2016-03-01

    Full Text Available Daniel, Hananiah, Misael, and Azariah were young Jewish people who had been taken to Babylon in captivity. They truly obeyed God in their daily life and did not defile themselves with the king’s food and wine. God honored their decision so He gave them wisdom, that is intellectual ability (knowledge and understanding of all kinds of literature and learning and understanding visions and dreams of all kinds. Their response to the wisdom from God was having a good life style, submitting to God, and carrying burdens. To continue the wisdom from God, they lived in unity, depended on God and had God’s spirit in them. In doing their job, they spoke with wisdom and tact and worked honestly. In working with the king, they made a courageous decision not to worship the image of god and not to follow the king’s command. In the king’s palace, Daniel did not think for himself only, but had a burden to pray for Jerusalem, represent his nation before God, and fast for the future. 

  10. Equivocal Objects: The Problem of Women's Property in Daniel Deronda

    Directory of Open Access Journals (Sweden)

    Deborah Wynne

    2008-04-01

    Full Text Available Written between the passing of the first Married Women's Property Act in 1870 and the second Act of 1882, Eliot's final novel, 'Daniel Deronda' (1876, offers a powerful depiction of the social and legal disabilities faced by women. Her representations of objects and objectification centre on the concept of property, not only portable property such as jewellery and clothing, but also the idea of women themselves as property to be exchanged within the Victorian social system. This essay suggests that Eliot's awareness of the anomalies of the law and the equivocal positions held by women in terms of property ownership informs her depictions of the things women possess, and the sorts of meanings generated by objects. The essay argues that in 'Daniel Deronda' Eliot offers a powerful critique of women's exclusion from the patriarchal processes of primogeniture, and that her ironic use of terms such as 'own' and 'self-possession' in relation to her female characters helps to emphasise her need to move beyond the heroine who renounces the things of this world.

  11. Euroopa tulevikuvisiooni näeme Ceutas ja Melillas / Daniel Pipes ; intervjueerinud Taavi Minnik

    Index Scriptorium Estoniae

    Pipes, Daniel

    2016-01-01

    Intervjuu Lähis-Ida Foorumi presidendi Daniel Pipesiga Euroopa migratsioonikriisist ja vigadest migratsioonipoliitikas. Probleemidest, mida massiimmigratsioon Kolmandast Maailmast Euroopale kaasa toob ning radikaalse islami ohtudest

  12. The indigenous ethos in the literary memoirs of Daniel Munduruku

    Directory of Open Access Journals (Sweden)

    Waniamara de Jesus dos Santos

    2013-10-01

    Full Text Available Adopting the theories postulated by Classical Rhetoric and Argumentation Discourse, this paper comes up with a reflection about the identity built by Daniel Munduruku in his memories ‘Meu vô Apolinário: um mergulho no rio da (minha memória’ The indigenous writer assumes the world of classical rhetorical tradition and expose his ideas in order to change preconceived concepts about the visibility of indigenous people by non-indigenous brazilian society. Munduruku shows a new indigenous appearence resulting from the performance between previosly and shown ethos, working both: his ‘fame’ and a new person built in his book and captured by the reader. Adopting gender epidictic, the construction of the indigenous ethos is done in a apparently harmless way, lying hidden the purpose to recreate new values about the world’s indigenous peoples in Brazil.

  13. Ljudmila Ulitskaja, Daniel Stein, interprète

    Directory of Open Access Journals (Sweden)

    Giulia Gigante

    2010-02-01

    Full Text Available L’œuvre, caractérisée par une rare intensité émotionnelle et une structure extrêmement complexe, narre une histoire vraie dans laquelle s’entremêlent tous les principaux événements dramatiques de l’Histoire du XXe siècle. Le Daniel du titre a donc réellement existé. Ljudmila Ulitskaja l’a rencontré par hasard il y a quinze ans et était, depuis lors, hantée par l’idée de raconter sa vie. Ulitskaja abandonne la narration linéaire qui caractérisait ses œuvres précédentes et opte pour une forme d...

  14. The function of poetic speech in the narrative in Daniel 2 | Venter ...

    African Journals Online (AJOL)

    Two poetic sections are identified and investigated in Daniel 2. Attention is paid to the function of these poems within the narrative in Daniel 2 and its particular structure. The conclusion is drawn that poetic speech is used here as a focusing technique to point out the main themes of the narrative.

  15. Daniel 6: There and back again – A deity's tale | de Bruyn | HTS ...

    African Journals Online (AJOL)

    This article states that, with his narrative, the author of Daniel 6 creates the presence of Elohim outside Jerusalem and Israel, within non-Israelite environments. Applying a body-space frameset to the texts of Daniel 6 helps to read the text as a construction of concepts. With his narrative the author creates the presence of ...

  16. Daniel 6: There and back again – A deity’s tale

    Directory of Open Access Journals (Sweden)

    Joseph J. de Bruyn

    2015-04-01

    Full Text Available This article states that, with his narrative, the author of Daniel 6 creates the presence of Elohim outside Jerusalem and Israel, within non-Israelite environments. Applying a body-space frameset to the texts of Daniel 6 helps to read the text as a construction of concepts. With his narrative the author creates the presence of Elohim outside Jerusalem and Israel, within non-Israelite environments. Furthermore, a spatial frameset shows that the story of Daniel 6 can be read as a conclusion to a larger narrative that stretches from Daniel 1–6. In this narrative the author utilises spatial concepts such as the character of Daniel; the lion’s den; Jerusalem and King Darius, to establish the omnipresence of the God of Israel. In constructing this presence of-God reality the author conveys a message of hope and trust in the authority of the God of Israel. In this regard Daniel 6 is not just a story about the character Daniel being persecuted for his faith; rather it is a story about the God of Israel establishing his presence and his ability to act through and within space and time.

  17. Apuntes sobre el 'teatro civile'. Entrevista a Daniele Biacchessi

    Directory of Open Access Journals (Sweden)

    Daniele Biacchessi

    2016-01-01

    Full Text Available Unas pocas líneas no bastan para presentar la figura del periodista, escritor y dramaturgo Daniele Biacchessi. Su amplia labor como periodista en algunos de los medios de difusión más relevantes de Italia y su constante producción como divulgador y creador  del llamado teatro civil hacen de él una figura que no puede dejarse de lado a la hora de hablar del teatro de inspiración cívica de la última década. Interesado en denunciar desde desastres medioambientales como en La fabbrica dei profumi o las matanzas nazis en Sant'Anna di Stazzema y Marzabotto a finales de la Segunda Guerra Mundial, basta dar un vistazo a algunos de sus títulos para tener una idea de la amplitud de temas tratados por Biacchessi, entre los que destacan Giovanni e Nori. Una storia di amore e di resistenza (2014, Passione reporter (2009, Il paese della vergogna (2007, Una stella a cinque punte. Le inchieste D'Antona e Biagi e le nuove Br (2007. Completan la entrevista hecha por Massimiliano Vellini dos pequeños fragmentos de uno de los manuales fundamentales sobre el llamado teatro de carácter cívico, Teatro civile, nei luoghi dell'inchiesta e della narrazione (Milán: Edizioni Ambiente, 2010.

  18. Book reviews: Daniel Kahneman - Thinking, Fast and Slow

    Directory of Open Access Journals (Sweden)

    Cristian Uta

    2016-09-01

    Full Text Available Although he has won the Nobel Prize for Economy (for his works on the decision theory, Daniel Kahneman is, surprisingly, a psychologist. Thinking, Fast and Slow presents us ideas and theories regarding the way in which the mind works and how this thing affects us when making a decision. In his opinion, the human thinking is a dual process, duality presented from three different perspec-tives. First (as the title suggests it, there are highlighted the differences between the fast and the slow thinking. Then the distinction between econs (rational agents of the classical economic theory and of the importance of economic schools of Chicago and humans (real people, which are not irrational but to whom the rational model does not fit is argued. Finally, the author presents us the conflicts between the remembering self and the experiencing self in respect to the way in which these selves perceive the wellbeing.   The volume contains 38 chapters structured in five parts. At the end, there is a Conclusions section and there are attached two articles written by Kahneman together with his friend Amos Tversky which present the contributions that have been cited by the Nobel committee for justifying the award given in 2002 (Tversky died in 1996 and he could not be awarded the Nobel Prize, although he would have deserved it.

  19. Daniel Link y la clase: problemas de convivencia

    Directory of Open Access Journals (Sweden)

    Mariana Catalin

    2016-12-01

    Full Text Available El presente trabajo busca realizar un acercamiento a los modos de la producción ensayística de Daniel Link a partir de un interrogante que cruza toda su producción: la pregunta por cómo vivir juntos. Para esto, en una primera instancia, se realiza un análisis de la aparición explícita del interrogante en una serie de textos del blog del autor (linkillo.blogspot.com, para observar qué problemas se condensan en torno al mismo. A partir de este contexto, en un segundo momento, se abre un recorrido por dos de sus más recientes libros de ensayos, Clases. Literatura y disidencia (2005 y Fantasmas. Imaginación y sociedad (2009. Allí, además de los usos que se articulan a partir de su aparición explícita, el interrogante permite pensar la relación entre clasificación y cualificación, dos conceptos centrales en la producción de Link.

  20. Daniel Goodman’s empirical approach to Bayesian statistics

    Science.gov (United States)

    Gerrodette, Tim; Ward, Eric; Taylor, Rebecca L.; Schwarz, Lisa K.; Eguchi, Tomoharu; Wade, Paul; Himes Boor, Gina

    2016-01-01

    Bayesian statistics, in contrast to classical statistics, uses probability to represent uncertainty about the state of knowledge. Bayesian statistics has often been associated with the idea that knowledge is subjective and that a probability distribution represents a personal degree of belief. Dr. Daniel Goodman considered this viewpoint problematic for issues of public policy. He sought to ground his Bayesian approach in data, and advocated the construction of a prior as an empirical histogram of “similar” cases. In this way, the posterior distribution that results from a Bayesian analysis combined comparable previous data with case-specific current data, using Bayes’ formula. Goodman championed such a data-based approach, but he acknowledged that it was difficult in practice. If based on a true representation of our knowledge and uncertainty, Goodman argued that risk assessment and decision-making could be an exact science, despite the uncertainties. In his view, Bayesian statistics is a critical component of this science because a Bayesian analysis produces the probabilities of future outcomes. Indeed, Goodman maintained that the Bayesian machinery, following the rules of conditional probability, offered the best legitimate inference from available data. We give an example of an informative prior in a recent study of Steller sea lion spatial use patterns in Alaska.

  1. Business leadership concepts exemplified by the two exceptional leaders Daniel Vasella and Ricardo Semler

    NARCIS (Netherlands)

    Alexander Betov; Patrick Szillat

    2016-01-01

    Purpose – Against the background of current leadership theory, this research paper analyses and compares the leadership approaches of two outstanding leaders: Daniel Vasella, chairman of the leading Swiss pharmaceutical organization Novartis and Ricardo Semler, owner of the Brazilian conglomerate

  2. The Daniel K. Inouye College of Pharmacy Scripts

    Science.gov (United States)

    Chang, Leng Chee; Sang-ngern, Mayuramas; Pezzuto, John M; Ma, Carolyn

    2016-01-01

    The Daniel K. Inouye College of Pharmacy, during a historic event in Spring 2016, graduated the first two students in the Pacific region to earn a PhD in pharmaceutical sciences at the University of Hawai‘i at Hilo. The college offers PhD programs in these five disciplines: Cancer Biology, Medicinal Chemistry, Pharmaceutics, Pharmacognosy, and Pharmacology. One of the Pharmacognosy dissertations focused on plant-derived natural products with potential anti-inflammatory and cancer chemopreventive activities. Physalis peruviana (Pp) L. originated in tropical South America. It has become naturalized and is found readily on the Island of Hawai‘i. The edible fruits are commonly known as cape gooseberry or poha in Hawai‘i. In part of our study, three new withanolides, physaperuvin G (1), physaperuvins I–J (2–3), along with four known withanolides, namely, 4β-hydroxywithanolide E (4), withaperuvin C (5), and physalactone (6), coagulin (7) were isolated from the aerial parts of P. peruviana. In addition, two known compounds, phyperunolide F (8), and withanolide S (9), were isolated and identified from the poha berry fruits. The structures and absolute stereochemistry of new compounds from poha were elucidated by several spectroscopy methods: Nuclear Magnetic Resonance (NMR) spectroscopy, X-ray diffraction, and mass spectrometry analyses. All isolated poha compounds (aerial parts and fruits) were evaluated for their anti-inflammatory activity with lipopolysaccharide (LPS)-activated murine macrophage RAW 264.7 cells, and tumor necrosis factor alpha (TNF-α)-activated nuclear factor-kappa B (NF-κB) with transfected human embryonic kidney cells 293. Most of the isolated natural compounds showed activity with these assays. Additional studies were performed with models of colon cancer. Specifically, 4β-hydroxywithanolide E (4HWE) inhibited the growth of colon cancer monolayer and spheroid cultures. The compound induced cell cycle arrest at low concentrations and

  3. Tractable approximations for probabilistic models: The adaptive Thouless-Anderson-Palmer mean field approach

    DEFF Research Database (Denmark)

    Opper, Manfred; Winther, Ole

    2001-01-01

    We develop an advanced mean held method for approximating averages in probabilistic data models that is based on the Thouless-Anderson-Palmer (TAP) approach of disorder physics. In contrast to conventional TAP. where the knowledge of the distribution of couplings between the random variables...... is required. our method adapts to the concrete couplings. We demonstrate the validity of our approach, which is so far restricted to models with nonglassy behavior? by replica calculations for a wide class of models as well as by simulations for a real data set....

  4. Unified tractable model for downlink MIMO cellular networks using stochastic geometry

    KAUST Repository

    Afify, Laila H.

    2016-07-26

    Several research efforts are invested to develop stochastic geometry models for cellular networks with multiple antenna transmission and reception (MIMO). On one hand, there are models that target abstract outage probability and ergodic rate for simplicity. On the other hand, there are models that sacrifice simplicity to target more tangible performance metrics such as the error probability. Both types of models are completely disjoint in terms of the analytic steps to obtain the performance measures, which makes it challenging to conduct studies that account for different performance metrics. This paper unifies both techniques and proposes a unified stochastic-geometry based mathematical paradigm to account for error probability, outage probability, and ergodic rates in MIMO cellular networks. The proposed model is also unified in terms of the antenna configurations and leads to simpler error probability analysis compared to existing state-of-the-art models. The core part of the analysis is based on abstracting unnecessary information conveyed within the interfering signals by assuming Gaussian signaling. To this end, the accuracy of the proposed framework is verified against state-of-the-art models as well as system level simulations. We provide via this unified study insights on network design by reflecting system parameters effect on different performance metrics. © 2016 IEEE.

  5. Unified Tractable Model for Large-Scale Networks Using Stochastic Geometry: Analysis and Design

    KAUST Repository

    Afify, Laila H.

    2016-12-01

    MIMO schemes, describe the relation between the diverse network parameters and configurations, and study the impact of temporal interference correlation on the performance of large-scale networks. Finally, we investigate some interference management techniques by exploiting the proposed framework. The proposed framework is compared to the exact analysis as well as intensive Monte Carlo simulations to demonstrate the model accuracy. The developed work casts a thorough inclusive study that is beneficial to deepen the understanding of the stochastic deployment of the next-generation large-scale wireless networks and predict their performance.

  6. Think Twice: Review of Thinking, Fast and Slow by Daniel Kahneman (2011

    Directory of Open Access Journals (Sweden)

    Anne Kelly

    2017-07-01

    Full Text Available Daniel Kahneman. Thinking, Fast and Slow (New York, NY: Farrar, Straus and Giroux 499 pp. ISBN 978-0374275631. In Thinking, Fast and Slow, Nobel Prize-winning psychologist Daniel Kahneman significantly sharpens our understanding of human decision-making and the systems of thinking that underlie it. He offers a compelling critique of the rational-agent model, arguing that, while we can and do use reason, we often fall back on a type of thinking that operates quickly and requires less cognitive effort but is vulnerable to faulty belief.

  7. Think Twice: Review of Thinking, Fast and Slow by Daniel Kahneman (2011)

    OpenAIRE

    Anne Kelly

    2017-01-01

    Daniel Kahneman. Thinking, Fast and Slow (New York, NY: Farrar, Straus and Giroux) 499 pp. ISBN 978-0374275631. In Thinking, Fast and Slow, Nobel Prize-winning psychologist Daniel Kahneman significantly sharpens our understanding of human decision-making and the systems of thinking that underlie it. He offers a compelling critique of the rational-agent model, arguing that, while we can and do use reason, we often fall back on a type of thinking that operates quickly and requires less cogn...

  8. USA välisminister Daniel Fried : "Me ei taha nõrka Venemaad"

    Index Scriptorium Estoniae

    2007-01-01

    Ilmunud ka: Severnoje Poberezhje, 12. mai 2007, lk. 5. USA asevälisminister Euroopa ja Euraasia küsimustes Daniel Fried märkis Saksamaal toimunud Euroopa foorumil, et Venemaaga suhtlemiseks ja koostöö tegemiseks on vaja luua ühine koostööraamistik

  9. Violence and the Daniel tales in a children's bible | Nel | HTS ...

    African Journals Online (AJOL)

    Children enjoy the tales of Daniel and his three friends, whether told in Sunday school, day school, by parents or grandparents. These tales are cast essentially in violent terms. In this article a specific version of the tales in a children's Bible is analysed to show in what way violence serves as the thread that holds the tales ...

  10. The Coming Right-Brain Economy: Daniel H. Pink Says the MFA Is the New MBA

    Science.gov (United States)

    Connection: The Journal of the New England Board of Higher Education, 2005

    2005-01-01

    According to a recent "Harvard Business Review" piece by author Daniel H. Pink, MBA graduates are, in many ways, becoming this century's blue-collar workers--people who entered a workforce that was full of promise only to see their jobs move overseas. At the same time, businesses are realizing that the only way to differentiate their goods and…

  11. Azpiazu, Daniel, La concentración en la industria argentina a principios del siglo XXI

    Directory of Open Access Journals (Sweden)

    Patricia Jerez

    2013-01-01

    Full Text Available Azpiazu, Daniel, La concentración en la industria argentina a principios del siglo XXI, Buenos Aires, Cara o Ceca/Centro Cultural de la Cooperación Floreal Gorini/Editorial Atuel, 2011 (148 págs.

  12. 77 FR 19322 - Daniel B. Brubaker, D.O.; Decision and Order

    Science.gov (United States)

    2012-03-30

    ... showing customers who are buying the drugs secondarily that this is the real thing, because generics are... DEPARTMENT OF JUSTICE Drug Enforcement Administration [Docket No. 10-59] Daniel B. Brubaker, D.O... Administrative Procedure Act (APA), 5 U.S.C. Sec. 551 et seq., to determine whether the Drug Enforcement...

  13. E. Valentine Daniel: Fluid Signs - Being a Person the Tamil Way

    DEFF Research Database (Denmark)

    Kjærholm, Lars

    2007-01-01

    en diskussion af de generelle muligheder for at anvende C.S. Peirce's semiotiske teorier i antropologisk analyse, og en specifik fremstilling og diskussion af hvorvidt det lykkes for E. Valentine Daniel at demonstrere værdien af disse teorier i antropologisk feltarbejde og analyse...

  14. A clash of gods – Conceptualising space in Daniel 1 | de Bruyn ...

    African Journals Online (AJOL)

    Applying cognitive linguistics to the text of Daniel 1 is a useful exegetical aid for a better understanding of the narrative. Studying the author's use of 'spatial markers' such as 'Jerusalem', 'Babylon', 'temple' and some other spatial features, makes it possible to reconstruct the narrative into a 'cognitive spatial frameset'. In this ...

  15. Daniel Day-Lewis lihvis Oscari-rolli neli aastat / Triin Tael

    Index Scriptorium Estoniae

    Tael, Triin

    2008-01-01

    Paul Thomas Andersoni Upton Sinclairi "Õli" järgi lavastatud "Veri hakkab voolama" ("There Will Be Blood"), peaosas Daniel Day-Lewis : Ameerika Ühendriigid 2007. Näitleja võitis oma rolliga parima meespeaosatäitja Oscari. Tema tööst rolli(de)ga

  16. [Jean-Daniel Strub. Der gerechte Friede. Spannungsfelder eines friedensethnischen Leibegriffs.] / Andreas Pawlas

    Index Scriptorium Estoniae

    Pawlas, Andreas

    2012-01-01

    Arvustus: Strub, Jean-Daniel. Der gerechte Friede. Spannungsfelder eines friedensethnischen Leibegriffs. (Forum Systematik. beiträge zur Dogmatik, Ethik und ökumenischen Theologie, hg von Johannes Brosseder, Johannes Fischer und Joachim Track, Band 36), Verlag W. Kohlhammer, Stuttgart 2010

  17. 77 FR 75819 - Death of Senator Daniel K. Inouye, President Pro Tempore of the Senate

    Science.gov (United States)

    2012-12-21

    ... Vol. 77 Friday, No. 246 December 21, 2012 Part VI The President Proclamation 8919--Death of Senator Daniel K. Inouye, President Pro Tempore of the Senate #0; #0; #0; Presidential Documents #0; #0...; #0; #0;Title 3-- #0;The President [[Page 75821

  18. Daniel Alcides Carrion (1857-1885) and a history of medical martyrdom.

    Science.gov (United States)

    Chatterjee, Pranab; Chandra, Shivika; Biswas, Tamoghna

    2015-11-01

    Daniel Carrion, a sixth-year medical student, died while investigating the effects of self-inoculation of the causative organism of Oroya Fever and Bartonellosis and thereby contributed to understanding of the disease before the organisms had been identified. © The Author(s) 2014.

  19. Deniel Kreig : Polutshiv rol Dzheimsa Bonda, ja napilsja ot stshastja! / Daniel Craig ; interv. Stass Tõrkin

    Index Scriptorium Estoniae

    Craig, Daniel

    2006-01-01

    Ajakirjanikud Londonis uue Bondi-filmi "007: Casino Royale" esilinastusel ja pressikonverentsil. Näitleja Daniel Craig räägib endast, oma Bondi karakterist. Lisaks kõigi Bondi osatäitjate lühiandmed "Vse sekretnõje agentõ", kuulsaimad Bondi tüdrukud "7 samõh seksualnõh devushek agenta 007"

  20. A Historical Analysis of the Daniell Cell and Electrochemistry Teaching in French and Tunisian Textbooks

    Science.gov (United States)

    Boulabiar, Ahlem; Bouraoui, Kamel; Chastrette, Maurice; Abderrabba, Manef

    2004-01-01

    The condition in which the Daniell Cell was historically constructed is examined and the evolution of its presentation in French and Tunisian chemistry textbooks is analyzed. Based on the studies, several innovations to facilitate the teaching of the cell, and more generally, the teaching of electrochemistry and of ionic conduction are proposed.

  1. Kan Daniel Sterns kernebegreber bidrage til en fænomenologisk orienteret musikpsykologi?

    DEFF Research Database (Denmark)

    Holgersen, Sven-Erik

    2007-01-01

    Daniel Stern har igennem hele sit forfatterskab været optaget af, hvordan bevidsthed konstitueres i samspillet mellem subjekt og omverden. Han har i stigende grad ladet sig inspirere af fænomenologi, og artiklen diskuterer, hvilke konsekvenser dette har for forståelsen af centrale begreber som...

  2. The Influence of Brittle Daniels System Characteristics on the Value of Load Monitoring Information

    DEFF Research Database (Denmark)

    Thöns, Sebastian; Schneider, Ronald

    This paper addresses the influence of deteriorating brittle Daniels system characteristics on the value of structural health monitoring (SHM). The value of SHM is quantified as the difference between the life cycle benefits with and without SHM. A value of SHM analysis is performed within...

  3. Aeg kui intermeedium : juhukohtumine Jan Kaila ja Daniel de Chenuga / Peeter Linnap

    Index Scriptorium Estoniae

    Linnap, Peeter, 1960-

    2012-01-01

    Soome kunstniku Jan Kaila ja iiri kunstniku Daniel de Chenu näitusest "Nüüd ja siis" 2003. a. Tallinna Kunstihoone galeriis. J. Kaila installatsioonis "Ümber pöörata/To Turn Around" on kesksel kohal portreed soome harrastuskunstnikust Elis Sinistöst

  4. Daniel Bain lämmatas plekivabrikus puhkenud oktoobrirevolutsiooni / Andres Reimer

    Index Scriptorium Estoniae

    Reimer, Andres

    2005-01-01

    Investeerimispangad Goldman Sachs ja Deutshe Bank ning Venemaa terasehiiglase Severstal tütarfirma Severstallat üritasid Galvexit üle võtta. Väidetavalt sai Galvexi omanik ameeriklane Daniel Bain pankadele tagasimakstava summa USA investeerimisettevõttest. Lisa: Galvexi ajalugu. Vt. samas: Omanike teravad suhted

  5. Capturing intracellular pH dynamics by coupling its molecular mechanisms within a fully tractable mathematical model.

    Directory of Open Access Journals (Sweden)

    Yann Bouret

    Full Text Available We describe the construction of a fully tractable mathematical model for intracellular pH. This work is based on coupling the kinetic equations depicting the molecular mechanisms for pumps, transporters and chemical reactions, which determine this parameter in eukaryotic cells. Thus, our system also calculates the membrane potential and the cytosolic ionic composition. Such a model required the development of a novel algebraic method that couples differential equations for slow relaxation processes to steady-state equations for fast chemical reactions. Compared to classical heuristic approaches based on fitted curves and ad hoc constants, this yields significant improvements. This model is mathematically self-consistent and allows for the first time to establish analytical solutions for steady-state pH and a reduced differential equation for pH regulation. Because of its modular structure, it can integrate any additional mechanism that will directly or indirectly affect pH. In addition, it provides mathematical clarifications for widely observed biological phenomena such as overshooting in regulatory loops. Finally, instead of including a limited set of experimental results to fit our model, we show examples of numerical calculations that are extremely consistent with the wide body of intracellular pH experimental measurements gathered by different groups in many different cellular systems.

  6. Discourse and tractable morality

    NARCIS (Netherlands)

    de Graaf, G.; Lütge, C.

    2013-01-01

    When managerial decisions are examined, somehow the business context must be included in the analysis. In this chapter, causalities that transcend individuals are promoted as unit of analysis in empirical moral research, namely, discourse. Studying managerial decisions in their discursive context is

  7. Developing the anemone Aiptasia as a tractable model for cnidarian-dinoflagellate symbiosis: the transcriptome of aposymbiotic A. pallida.

    Science.gov (United States)

    Lehnert, Erik M; Burriesci, Matthew S; Pringle, John R

    2012-06-22

    Coral reefs are hotspots of oceanic biodiversity, forming the foundation of ecosystems that are important both ecologically and for their direct practical impacts on humans. Corals are declining globally due to a number of stressors, including rising sea-surface temperatures and pollution; such stresses can lead to a breakdown of the essential symbiotic relationship between the coral host and its endosymbiotic dinoflagellates, a process known as coral bleaching. Although the environmental stresses causing this breakdown are largely known, the cellular mechanisms of symbiosis establishment, maintenance, and breakdown are still largely obscure. Investigating the symbiosis using an experimentally tractable model organism, such as the small sea anemone Aiptasia, should improve our understanding of exactly how the environmental stressors affect coral survival and growth. We assembled the transcriptome of a clonal population of adult, aposymbiotic (dinoflagellate-free) Aiptasia pallida from ~208 million reads, yielding 58,018 contigs. We demonstrated that many of these contigs represent full-length or near-full-length transcripts that encode proteins similar to those from a diverse array of pathways in other organisms, including various metabolic enzymes, cytoskeletal proteins, and neuropeptide precursors. The contigs were annotated by sequence similarity, assigned GO terms, and scanned for conserved protein domains. We analyzed the frequency and types of single-nucleotide variants and estimated the size of the Aiptasia genome to be ~421 Mb. The contigs and annotations are available through NCBI (Transcription Shotgun Assembly database, accession numbers JV077153-JV134524) and at http://pringlelab.stanford.edu/projects.html. The availability of an extensive transcriptome assembly for A. pallida will facilitate analyses of gene-expression changes, identification of proteins of interest, and other studies in this important emerging model system.

  8. Developing the anemone Aiptasia as a tractable model for cnidarian-dinoflagellate symbiosis: the transcriptome of aposymbiotic A. pallida

    Directory of Open Access Journals (Sweden)

    Lehnert Erik M

    2012-06-01

    Full Text Available Abstract Background Coral reefs are hotspots of oceanic biodiversity, forming the foundation of ecosystems that are important both ecologically and for their direct practical impacts on humans. Corals are declining globally due to a number of stressors, including rising sea-surface temperatures and pollution; such stresses can lead to a breakdown of the essential symbiotic relationship between the coral host and its endosymbiotic dinoflagellates, a process known as coral bleaching. Although the environmental stresses causing this breakdown are largely known, the cellular mechanisms of symbiosis establishment, maintenance, and breakdown are still largely obscure. Investigating the symbiosis using an experimentally tractable model organism, such as the small sea anemone Aiptasia, should improve our understanding of exactly how the environmental stressors affect coral survival and growth. Results We assembled the transcriptome of a clonal population of adult, aposymbiotic (dinoflagellate-free Aiptasia pallida from ~208 million reads, yielding 58,018 contigs. We demonstrated that many of these contigs represent full-length or near-full-length transcripts that encode proteins similar to those from a diverse array of pathways in other organisms, including various metabolic enzymes, cytoskeletal proteins, and neuropeptide precursors. The contigs were annotated by sequence similarity, assigned GO terms, and scanned for conserved protein domains. We analyzed the frequency and types of single-nucleotide variants and estimated the size of the Aiptasia genome to be ~421 Mb. The contigs and annotations are available through NCBI (Transcription Shotgun Assembly database, accession numbers JV077153-JV134524 and at http://pringlelab.stanford.edu/projects.html. Conclusions The availability of an extensive transcriptome assembly for A. pallida will facilitate analyses of gene-expression changes, identification of proteins of interest, and other studies in this

  9. Symposium on Recent Advances in Experimental Mechanics : in honor of Isaac M. Daniel

    CERN Document Server

    2002-01-01

    This book contains 71 papers presented at the symposium on “Recent Advances in Experimental Mechanics” which was organized in honor of Professor Isaac M. Daniel. The symposium took place at Virginia Polytechnic Institute and State University on th June 23-28, 2002, in conjunction with the 14 US National Congress of Applied Mechanics. The book is a tribute to Isaac Daniel, a pioneer of experimental mechanics and composite materials, in recognition of his continuous, original, diversified and outstanding contributions for half a century. The book consists of invited papers written by leading experts in the field. It contains original contributions concerning the latest developments in experimental mechanics. It covers a wide range of subjects, including optical methods of stress analysis (photoelasticity, moiré, etc.), composite materials, sandwich construction, fracture mechanics, fatigue and damage, nondestructive evaluation, dynamic problems, fiber optic sensors, speckle metrology, digital image process...

  10. Literary harmonies: music in some Daniel Moyano’s short stories

    Directory of Open Access Journals (Sweden)

    Cecilia Corona Martínez

    2014-12-01

    Full Text Available Daniel Moyano, escritor argentino nacido en Buenos Aires y muerto en Madrid en 1992, publicó poemas, cuentos y novelas que aún no han recibido la atención que merecen por parte de la crítica especializada. Además, fue músico profesional. Estas dos vocaciones se conjugan en una característica que destaca una gran parte de su narrativa: la confluencia entre música y literatura. Este artículo estudia la presencia de la música en un corpus de tres cuentos de Daniel Moyano, publicados entre 1974 y 1988. Se advierte en ellos una presencia cada vez más relevante de lo musical, tanto a nivel de la escritura como en los diversos sentidos que adquiere en las historias narradas.

  11. Re-building Daniell Cell with a Li-ion exchange Film

    Science.gov (United States)

    Dong, Xiaoli; Wang, Yonggang; Xia, Yongyao

    2014-11-01

    Daniell cell (i.e. Zn-Cu battery) is widely used in chemistry curricula to illustrate how batteries work, although it has been supplanted in the late 19th century by more modern battery designs because of Cu2+-crossover-induced self-discharge and un-rechargeable characteristic. Herein, it is re-built by using a ceramic Li-ion exchange film to separate Cu and Zn electrodes for preventing Cu2+-crossover between two electrodes. The re-built Zn-Cu battery can be cycled for 150 times without capacity attenuation and self-discharge, and displays a theoretical energy density of 68.3 Wh kg-1. It is more important that both electrodes of the battery are renewable, reusable, low toxicity and environmentally friendly. Owing to these advantages mentioned above, the re-built Daniell cell can be considered as a promising and green stationary power source for large-scale energy storage.

  12. Re-building Daniell cell with a Li-ion exchange film.

    Science.gov (United States)

    Dong, Xiaoli; Wang, Yonggang; Xia, Yongyao

    2014-11-05

    Daniell cell (i.e. Zn-Cu battery) is widely used in chemistry curricula to illustrate how batteries work, although it has been supplanted in the late 19th century by more modern battery designs because of Cu(2+)-crossover-induced self-discharge and un-rechargeable characteristic. Herein, it is re-built by using a ceramic Li-ion exchange film to separate Cu and Zn electrodes for preventing Cu(2+)-crossover between two electrodes. The re-built Zn-Cu battery can be cycled for 150 times without capacity attenuation and self-discharge, and displays a theoretical energy density of 68.3 Wh kg(-1). It is more important that both electrodes of the battery are renewable, reusable, low toxicity and environmentally friendly. Owing to these advantages mentioned above, the re-built Daniell cell can be considered as a promising and green stationary power source for large-scale energy storage.

  13. Daniel Gogny's vision for a microscopic theory of fission

    Energy Technology Data Exchange (ETDEWEB)

    Younes, W. [Lawrence Livermore National Laboratory, Livermore, CA (United States)

    2017-05-15

    Daniel Gogny made many contributions to our understanding of nuclear fission over a span of 35 years. This paper reviews some of those contributions, focusing in particular on fission dynamics, the challenges of describing scission in a quantum-mechanical context, and the calculation of fragment properties such as their mass, kinetic, and excitation energy distributions. The generator coordinate method provides the common theoretical framework within which these various aspects of fission are formulated. (orig.)

  14. Disaini ja rahvaste saatusest / Daniel Van der Velden ; interv. Kristjan Mändmaa

    Index Scriptorium Estoniae

    Van der Velden, Daniel

    2008-01-01

    17.-27. X 2008 oli Eesti Kunstiakadeemias näitus "Marsilt. Omaalgatuslikud projektid graafilises disainis". Kuraatorid: tšehhi disainerid Adam Machacek ja Radim Peshko. 17. X esinesid EKA saalis loengutega James Goggin Londoni firmast Practice ja Daniel van der Velden Hollandi disainikollektiivist Metahaven. 16. V osales D. van der Velden Eesti Disainiinstituudi korraldatud kohabrändingu-teemalises ümarlauas. D. van der Velden disaini, poliitika ja kohabrändingu tulevikust, Metahaveni disainitöödest

  15. Disaini ja rahvaste saatusest / Daniel Van der Velden ; intervjueerinud Kristjan Mändmaa

    Index Scriptorium Estoniae

    Van der Velden, Daniel

    2011-01-01

    17.-27. X 2008 oli Eesti Kunstiakadeemias näitus "Marsilt. Omaalgatuslikud projektid graafilises disainis". Kuraatorid: tšehhi disainerid Adam Machacek ja Radim Peshko. 17. X esinesid EKA saalis loengutega James Goggin Londoni firmast Practice ja Daniel van der Velden Hollandi disainikollektiivist Metahaven. 16. V osales D. van der Velden Eesti Disainiinstituudi korraldatud kohabrändingu-teemalises ümarlauas. D. van der Velden disaini, poliitika ja kohabrändingu tulevikust, Metahaveni disainitöödest

  16. The Daniell Cell, Ohm's Law and the Emergence of the International System of Units

    OpenAIRE

    Jayson, Joel S.

    2015-01-01

    Telegraphy originated in the 1830s and 40s and flourished in the following decades, but with a patchwork of electrical standards. Electromotive force was for the most part measured in units of the predominant Daniell cell. Each company had their own resistance standard. In 1862 the British Association for the Advancement of Science formed a committee to address this situation. By 1873 they had given definition to the electromagnetic system of units (emu) and defined the practical units of the...

  17. Psychologists at the Gate: Review of Daniel Kahneman’s Thinking, Fast and Slow

    OpenAIRE

    Shleifer, Andrei

    2012-01-01

    The publication of Daniel Kahneman's book, Thinking, Fast and Slow , is a major intellectual event. The book summarizes, but also integrates, the research that Kahneman has done over the past forty years, beginning with his path-breaking work with the late Amos Tversky. The broad theme of this research is that human beings are intuitive thinkers and that human intuition is imperfect, with the result that judgments and choices often deviate substantially from the predictions of normative stati...

  18. Not so special after all? Daniels and the social determinants of health.

    Science.gov (United States)

    Wilson, J

    2009-01-01

    Just health: meeting health needs fairly is an ambitious book, in which Norman Daniels attempts to bring together in a single framework all his work on health and justice from the past 25 years. One major aim is to reconcile his earlier work on the special moral importance of healthcare with his later work on the social determinants of health. In his earlier work, Daniels argued that healthcare is of special moral importance because it protects opportunity. In this later work, Daniels argues that the social determinants of health (which in fact tend to have a larger effect on health outcomes than healthcare does) should also be considered special. This paper argues that it is a mistake to base a theory of justice for health on the claim that health (or the social determinants of health) are "special", for three reasons. First, once we realise that health is to a large part socially determined by features such as distribution of income, which are also of independent importance for justice, we cannot talk about a theory of justice for health in isolation from an overall theory of justice. Second, when we are trying to work out the place of health in a general theory of justice, being told that health (or the social determinants of health) is special is unhelpful. The relevant starting point should rather be whether health matters in a fundamental way for justice, or whether it matters merely for the effects it has on those goods which are of fundamental importance for justice. Third, treating the social determinants of health as special would in fact be counterproductive in terms of the broad approach to justice Daniels favours.

  19. Short biography of Louis Daniel Beauperthuy (1807-71): pioneer of microbiology and medical science in Venezuela.

    Science.gov (United States)

    Godoy, Gerardo A; Tarradath, Ewart

    2010-02-01

    Louis Daniel Beauperthuy was a pioneer of microbiology in Venezuela where he developed microscopic and clinical research together with academic and scientific observation related to leprosy and the role of insects in the transmission of febrile illnesses.

  20. Kahevahel : Kui hajusad on kultuuriruumi piirid? / Anna Verschik, Tiina Kirss, Mikko Lagerspetz ; intervjueerinud Daniele Monticelli, Merle Karro-Kalberg

    Index Scriptorium Estoniae

    Verschik, Anna, 1968-

    2015-01-01

    Kultuurist, kultuuriruumist, kultuuris olemisest ja sealt pärinemisest arutlevad TLÜ professori Daniele Monticelli eestvõttel TLÜ professorid Anna Verschik ja Tiina Kirss ning Turu Åbo Akadeemia professor Mikko Lagerspetz

  1. Elaborating Naturalized Critical Realism: Response to Ruth Groff, Dave Elder-Vass, Daniel Little and Petri Ylikoski

    Directory of Open Access Journals (Sweden)

    Kaidesoja Tuukka

    2015-09-01

    Full Text Available This paper is a reply to the discussions of Ruth Groff, Dave Elder-Vass, Daniel Little, and Petri Ylikoski of Tuukka Kaidesoja (2013: Naturalizing Critical Realist Social Ontology (London: Routledge.

  2. Effect of a 21 day Daniel Fast on metabolic and cardiovascular disease risk factors in men and women

    OpenAIRE

    Bloomer, Richard J; Kabir, Mohammad M; Canale, Robert E; Trepanowski, John F; Marshall, Kate E; Farney, Tyler M; Hammond, Kelley G

    2010-01-01

    Abstract Background Dietary modification via caloric restriction is associated with multiple effects related to improved metabolic and cardiovascular health. However, a mandated reduction in kilocalories is not well-tolerated by many individuals, limiting the long-term application of such a plan. The Daniel Fast is a widely utilized fast based on the Biblical book of Daniel. It involves a 21 day ad libitum food intake period, devoid of animal products and preservatives, and inclusive of fruit...

  3. Daniel Jones

    DEFF Research Database (Denmark)

    underrated, impact on the American structuralist school. This eight volume collection makes available the first editions of Jones' standard books, i.e. The Pronunciation of English (1909), An English Pronouncing Dictionary (1917) and An Outline of English Phonetics (1918). In addition, Jones' crucial...... pioneering works, now out of print for many decades, are made easily accessible to scholars once again. Numerous articles encompassing a variety of phonetic/phonological topics, for example, phonemic analysis, juncture, models of pronunciation, and historiography, are also included (converted where necessary...

  4. Daniel Hugo

    African Journals Online (AJOL)

    Owner

    tigingsdrang gestel teenoor die getemde oer- magte. Die mens is dus uiteindelik vernieti- gender as die gevare wat hy makgemaak en uitgeskakel het. Hierna volg gedigte oor natuurdinge, wa- ter en plante en bome en wind. Die gedigte is bedrieglik soepel en eenvoudig, maar op 'n vindingryke wyse meng Hugo erns en ...

  5. Daniel Gogny

    Energy Technology Data Exchange (ETDEWEB)

    Berger, J.F.; Bouche, D.; Delaroche, J.P.; Dupuis, M.; Girod, M.; Pillet, N. [CEA, DAM, DIF, Arpajon (France); Blaizot, J.P.; Chaix, P.; Iracane, D.; Lachkar, J. [CEA, Saclay, Gif-sur-Yvette (France); Grammaticos, B. [CNRS, IMNC, Orsay (France); Mariotte, F. [CEA, Fontenay-aux-Roses (France); Van Giai, N. [Institut de Physique Nucleaire, CNRS-IN2P3 et Universite Paris-Sud, Orsay (France); Gogny, J.

    2017-10-15

    In this article, the scientific life of D. Gogny is recounted by several collaborators. His strong involvement in researches related to various fields of physics (such as nuclear, atomic and plasma physics as well as electromagnetism) appears clearly, as well as the progresses made in the understanding of fundamental physics. (orig.)

  6. Daniel Bernoulli

    Indian Academy of Sciences (India)

    Unknown

    evolutionary biology and behavioural ecology. Between. 1983 and 1999 it was cited 36 times (according to the. Web of Science database) by people writing on decision theory, risk management, mathematical probability, ex- pected utility, cognition and choice, ecology, evolutionary ecology, marketing, preference structures ...

  7. Hans Joas & Daniel R. Huebner (eds.), The Timeliness of George Herbert Mead

    OpenAIRE

    Baggio, Guido

    2018-01-01

    The Timeliness of George Herbert Mead is a significant contribution to the recent “Mead renaissance.” It gathers some contributions first presented at the conference celebrating the 150th anniversary of the birth of George Herbert Mead held in April 2013 at the University of Chicago and organized by Hans Joas, Andrew Abbott, Daniel Huebner, and Christopher Takacs. The volume brings scholarship on G. H. Mead up to date highlighting Mead’s relevance for areas of research completely ignored by p...

  8. Daniel Stern's journey in infant psychiatry: interview by John A. Talbot.

    Science.gov (United States)

    Stern, Daniel

    2012-12-01

    This interview with Professor Daniel Stern, conducted on February 16, 2012 by Dr. John Talbott, reviews the field of infant psychiatry, the history of which goes back more than 100 years. Sigmund Freud, then Melanie Klein, Anna Freud, Donald Winnicott, and, finally, Margaret Mahler, all psychoanalysts, influenced its development. Direct observation of very young infants and their mothers began in the latter half of the 20th century, and the subsequent course shifted through the influence of developmental psychologists and ethologists. This review concludes with Dr. Stern's predictions and fears about future directions of the field.

  9. Book Review: Frampton, Daniel, ‘Filmosophy’, 2006. London: Wallflower, ISBN 1-904764-84-3

    OpenAIRE

    Magerstädt, Sylvie

    2008-01-01

    Daniel Frampton’s work Filmosophy can be considered one of the most recent analyses of Gilles Deleuze’s theories on cinema, especially in its relationship to philosophy. But Frampton’s book is more than that. It goes beyond the French philosopher in its argument that film, analogous to philosophy can be regarded not simply as an art form but as thinking itself, a system of thoughts, ideas and memories. He writes that ‘Cinema believes in its objects just as we have a belief about our past. Fil...

  10. Fluor Daniel Hanford Inc. integrated safety management system phase 1 verification final report

    International Nuclear Information System (INIS)

    PARSONS, J.E.

    1999-01-01

    The purpose of this review is to verify the adequacy of documentation as submitted to the Approval Authority by Fluor Daniel Hanford, Inc. (FDH). This review is not only a review of the Integrated Safety Management System (ISMS) System Description documentation, but is also a review of the procedures, policies, and manuals of practice used to implement safety management in an environment of organizational restructuring. The FDH ISMS should support the Hanford Strategic Plan (DOE-RL 1996) to safely clean up and manage the site's legacy waste; deploy science and technology while incorporating the ISMS theme to ''Do work safely''; and protect human health and the environment

  11. Learning to Think Slower: Review of Thinking, Fast and Slow by Daniel Kahneman (2011

    Directory of Open Access Journals (Sweden)

    Samuel L. Tunstall

    2017-07-01

    Full Text Available Daniel Kahneman. Thinking, Fast and Slow (New York, NY: Farrar, Straus and Giroux 499 pp. ISBN 978-0374275631. As an expansive review of Kahneman and others' work over the past half-century in understanding human decision-making, Thinking, Fast and Slow provides Numeracy readers much to consider for both pedagogy and research. In this review, we outline Kahneman's core argument—that humans use both rash (emotional System 1 thinking and slow (logical System 2 thinking—then discuss how such systems might be addressed in a quantitative literacy classroom.

  12. Validation study by finite element method: the case of the Daniel Johnson Dam

    International Nuclear Information System (INIS)

    Lariviere, R.; Phat, T. M.; Poirier, C.; Thibeault, N.

    1997-01-01

    A structural study of the Daniel-Johnson multi-arch dam undertaken by Hydro-Quebec to determine the safest way of grouting the cracks at the base of some arches was described. A numerical model in the linear elastic domain was constructed. The model will be modified to incorporate other features such as the cracks at the base of arches, the cracks at the concrete-rock foundation contact area, and the restraining effect of downstream rock foundation. This paper highlights the quality assurance procedure related to model validation as recommended by the International Committee on Large Dams. 2 refs., 11 figs

  13. Re-building Daniell Cell with a Li-ion exchange Film

    OpenAIRE

    Dong, Xiaoli; Wang, Yonggang; Xia, Yongyao

    2014-01-01

    Daniell cell (i.e. Zn-Cu battery) is widely used in chemistry curricula to illustrate how batteries work, although it has been supplanted in the late 19th century by more modern battery designs because of Cu2+-crossover-induced self-discharge and un-rechargeable characteristic. Herein, it is re-built by using a ceramic Li-ion exchange film to separate Cu and Zn electrodes for preventing Cu2+-crossover between two electrodes. The re-built Zn-Cu battery can be cycled for 150 times without capac...

  14. A re-description of Frillagalma vityazi Daniel 1966 (Siphonophorae, Agalmatidae

    Directory of Open Access Journals (Sweden)

    P. R. Pugh

    1998-09-01

    Full Text Available Ten complete specimens of Frillagalma vityazi Daniel, 1966 (Siphonophorae, Agalmatidae were collected by the submersibles Johnson-Sea-Link I and II. These have allowed a more detailed description of the species to be made, as it was previously known only by its ill-preserved nectophores and one type of its bracts. The taxonomic status of the species is discussed. In addition much material has been identified from the Discovery collections, and the distribution of the species in the North Atlantic Ocean is considered.

  15. Learning to Think Slower: Review of Thinking, Fast and Slow by Daniel Kahneman (2011)

    OpenAIRE

    Samuel L. Tunstall; Patrick N. Beymer

    2017-01-01

    Daniel Kahneman. Thinking, Fast and Slow (New York, NY: Farrar, Straus and Giroux) 499 pp. ISBN 978-0374275631. As an expansive review of Kahneman and others' work over the past half-century in understanding human decision-making, Thinking, Fast and Slow provides Numeracy readers much to consider for both pedagogy and research. In this review, we outline Kahneman's core argument—that humans use both rash (emotional) System 1 thinking and slow (logical) System 2 thinking—then discuss how su...

  16. Migration and New Media: Transnational Families and Polymedia by Mirca Madianou and Daniel Miller (Routledge, 2012

    Directory of Open Access Journals (Sweden)

    Erwin Gaspar A. Alampay

    2012-06-01

    Full Text Available In 2007, Daniel Miller presented his paper on “What is a Mobile PhoneRelationship” in the “1st Living the Information Society Conference” held inManila. In his presentation, he mentioned the work he was just embarking onwith Mirca Madianou on long-distance relationships of separated families andthe ability of different media to sustain those relationships over time (Miller,2009. He was then building on the extensive work that Parrenas (2001, 2005a,2005b had done on Filipino transnational families, and in particular, on motheringfrom a distance

  17. Evaluating the Ability of the PBS Children?s Show Daniel Tiger?s Neighborhood to Teach Skills to Two Young Children with Autism Spectrum Disorder

    OpenAIRE

    Dotson, Wesley H.; Rasmussen, Eric E; Shafer, Autumn; Colwell, Malinda; Densley, Rebecca L.; Brewer, Adam T.; Alonzo, Marisol C.; Martinez, Laura A.

    2016-01-01

    Daniel Tiger?s Neighborhood is a children?s television show incorporating many elements of video modeling, an intervention that can teach skills to children with autism spectrum disorders (ASD). This study evaluated the impact of watching Daniel Tiger?s Neighborhood episodes on the accurate performance of trying new foods and stopping play politely with two five-year-old children with ASD. Both children showed improved performance of skills only following exposure to episodes of Daniel Tiger?...

  18. [Nature, colonization, and utopia in the works of João Daniel].

    Science.gov (United States)

    Costa, Kelerson Semerene

    2007-12-01

    The article analyzes certain aspects of "Tesouro descoberto no rio Amazonas" (Treasure discovered on the Amazon River), written by João Daniel (1722-76) during his time in the State of Maranhão e Grão-Pará as a Jesuit missionary between 1741 and 1757; the priest was banished to Lisbon two years before the Company of Jesus was expelled from Portuguese America. This unique record of the mid-eighteenth-century Amazon is a compendium on the region's wealth and potential. Most importantly, it put forward a colonization project that was critical of the model then in place; the new proposal was an integrated whole which took environmental conditions, technology, and social relations into account in the organization of local society. In centering his project on the issue of labor, João Daniel revives, as a metaphor, the idea of the Amazon as an earthly paradise-a notion that had characterized seventeenth-century missionary literature but was practically abandoned in the eighteenth century.

  19. Simulations

    CERN Document Server

    Ngada, Narcisse

    2015-06-15

    The complexity and cost of building and running high-power electrical systems make the use of simulations unavoidable. The simulations available today provide great understanding about how systems really operate. This paper helps the reader to gain an insight into simulation in the field of power converters for particle accelerators. Starting with the definition and basic principles of simulation, two simulation types, as well as their leading tools, are presented: analog and numerical simulations. Some practical applications of each simulation type are also considered. The final conclusion then summarizes the main important items to keep in mind before opting for a simulation tool or before performing a simulation.

  20. Daniel Dragonslayer – Bel and the dragon, Verses 23−27 (OG/Th

    Directory of Open Access Journals (Sweden)

    Joseph J. de Bruyn

    2015-04-01

    Full Text Available In this article, aspects of narrative critique, genre, editorial critique, the body and space are uniquely combined into a body-space framework. This spatial framework is used to examine the second episode of ‘Bel and the Dragon’, called ‘Daniel Dragonslayer’. It is postulated that the second episode of ‘Bel and the Dragon’ should be read in a reciprocal relationship with not only ‘Bel and the Dragon’, but also the larger Book of Daniel. Firstly, such an analysis indicates that the smaller episode is part of a larger clash of deities. Secondly, it shows that the editor /author utilises the episode to create a new cosmology. In this new cosmology, the Jewish deity is an almighty one, whilst other deities are seen as false and not real living gods. In his own way, the editor or author contributes to the way in which Jews regarded their God within the reality of the diaspora. Daniel Dragonslayer − Bel en die draak, Verse 23−27 (VAN/Die. In hierdie artikel word aspekte van narratiewe-kritiek, genre, redaksie-kritiek, die liggaam en ruimte op ’n unieke wyse gekombineer om ’n beliggaamde ruimteraamwerk te vorm. Hierdie beliggaamde ruimteraamwerk word gebruik om die tweede episode van ‘Bel en die Draak’, naamlik ‘Daniël, die Draakjagter’, te analiseer. Die artikel stel voor dat hierdie tweede episode van ‘Bel en die Draak’ in ’n resiproke verhouding met ‘Bel en die Draak’, sowel as met die boek Daniël gelees moet word. Indien die teks op hierdie voorgestelde wyse ontleed word, kom verskeie punte na vore. Eerstens word aangedui dat die kleiner episode deel van ’n groter gode-oorlog vorm. Tweedens, die skrywer/redakteur gebruik die kleiner episode as deel van ’n proses om ’n nuwe kosmologie te skep. Volgens hierdie nuwe kosmologie is die Joodse God ’n almagtige God, terwyl ander gode vals en nie ware lewende gode is nie. Op sy eie manier lewer die skrywer/redakteur ’n bydrae tot die

  1. Fluor Daniel Hanford Inc. integrated safety management system phase 1 verification final report

    Energy Technology Data Exchange (ETDEWEB)

    PARSONS, J.E.

    1999-10-28

    The purpose of this review is to verify the adequacy of documentation as submitted to the Approval Authority by Fluor Daniel Hanford, Inc. (FDH). This review is not only a review of the Integrated Safety Management System (ISMS) System Description documentation, but is also a review of the procedures, policies, and manuals of practice used to implement safety management in an environment of organizational restructuring. The FDH ISMS should support the Hanford Strategic Plan (DOE-RL 1996) to safely clean up and manage the site's legacy waste; deploy science and technology while incorporating the ISMS theme to ''Do work safely''; and protect human health and the environment.

  2. Daniel Prieto Castillo y la utopía pedagógica

    Directory of Open Access Journals (Sweden)

    Kintto Lucas

    2015-01-01

    Full Text Available En la entrevista realizada a Daniel Prieto Castillo, éste afirma que entre lo que produce la cultura, las prácticas, los saberes y quienes están en situación de aprender siempre hay mediaciones sociales. Al opinar sobre la educación alternativa dice que hay una explosión de lo alternativo porque hay una explosión de la sociedad civil en todos, los campos. Discrepa de los programas infantiles como el dirigido por XUXA por su terrible violencia referida a la saturación de sonido de la animadora no hay silencio, pausa o respiro solo gritos, es de un manipuleo insoportable.

  3. Applications of the ETEM for obtaining optical soliton solutions for the Lakshmanan-Porsezian-Daniel model

    Science.gov (United States)

    Manafian, Jalil; Foroutan, Mohammadreza; Guzali, Aref

    2017-11-01

    This paper examines the effectiveness of an integration scheme which is called the extended trial equation method (ETEM) for solving a well-known nonlinear equation of partial differential equations (PDEs). In this respect, the Lakshmanan-Porsezian-Daniel (LPD) equation with Kerr and power laws of nonlinearity which describes higher-order dispersion, full nonlinearity and spatiotemporal dispersion is considered, and as an achievement, a series of exact travelling-wave solutions for the aforementioned equation is formally extracted. Explicit new exact solutions are derived in different form such as dark solitons, bright solitons, solitary wave, periodic solitary wave, rational function, and elliptic function solutions of LPD equation. The movement of obtained solutions is shown graphically, which helps to understand the physical phenomena of this optical soliton equation. Many other such types of nonlinear equations arising in basic fabric of communications network technology and nonlinear optics can also be solved by this method.

  4. Daniel Alcides Carrión: la teoría unicista

    OpenAIRE

    Salinas, David

    2016-01-01

    La enfermedad de Carrión presenta clásicamente dos fases clínicas: la fiebre de la Oroya y la verruga peruana. La teoría unicista reconoce que ambas formas clínicas pertenecen a la misma enfermedad, la obtención de este conocimiento representó un duro desafío para la ciencia peruana y mundial. A través de un histórico experimento en 1885, Daniel Alcides Carrión obtuvo la evidencia clínica-experimental que sentó las bases de la teoría unicista; el científico diseñó esta teoría solo hasta las h...

  5. Poema en prosa y mundos especulativos: en torno a Les Chasseurs du temps de Daniel Walther

    Directory of Open Access Journals (Sweden)

    Mariano Martín Rodríguez

    2016-04-01

    Full Text Available The prose poem has traditionally been considered above all a lyrical genre. Never-theless, there are short fictions showing the main features of the prose poem, such as brevity, intensity, autonomy, importance of connotation, visionary character and, above all, the dominance of description. The fic-tional prose poem gives shape to an imagi-nary world which is poetically described, rather than narrated. The fictional character of this kind of prose poem is especially clear when what is described is a future reality, as it is the case in Stéphane Mallarmé’s «Le Phénomène futur» and in later series of prose poems which create prospective uni-verses. Among them, the series collected by Daniel Walther in 2010 under the title of Les Chasseurs du temps stands out for its mysterious force, its fictional coherence and the beauty of its images.

  6. The “Journal d’un corps” by Daniel Pennac

    Directory of Open Access Journals (Sweden)

    Elena Cappellini

    2014-03-01

    Full Text Available The influence that ancient and modern devices of representation of the body have on the work of some contemporary authors is central to the book Corpi in frammenti. Anatomia, radiologia, fotografia e forma breve del narrare (Le Lettere, Firenze 2013. It is proposed here the final part of the volume, which summarizes many of the issues investigated, by analyzing the recent novel Journal d’un corps by Daniel Pennac. This detailed narration of the physical changes occurred over the course of a lifetime reveals the unreachable distance between the subject and the specular, photographic, medical images of the subject’s own body, as well as the therapeutic role of journal writing, an act that is capable of healing this rift.

  7. Daniel Landis: Award for Distinguished Contributions to the International Advancement of Psychology.

    Science.gov (United States)

    2012-11-01

    Presents a short biography of one of the co-recipients of the American Psychological Association's Award for Distinguished Contributions to the International Advancement of Psychology. One of the 2012 winners is Daniel Landis for his unparalleled contribution to the field of intercultural research in a distinguished academic career spanning almost half a century. Landis has shaped the field of intercultural research through scholarship of the highest order, reflected in his publications on cross-cultural training and research, the measurement of equal opportunity climate, individual-differences research and methodology, evaluation of social programs, development of theory in social psychology, and cross-cultural aspects of human sexuality. He is the founding editor-in-chief of the International Journal of Intercultural Relations and has edited three editions of the Handbook of Intercultural Training (1983, 1996, 2004). Landis' Award citation and a selected bibliography are also presented. PsycINFO Database Record (c) 2012 APA, all rights reserved.

  8. Using Socio-Dramatic Play to Support a Beginning Writer: "Daniel, the Doctor and the Bleeding Ball"

    Science.gov (United States)

    Boyle, Bill; Charles, Marie

    2010-01-01

    This article reports on a case study of a young child (aged five) at a very early stage of his journey as a writer, evidencing "pre-alphabetic tendencies", who has not yet internalised the construction of his name. Analysis of a "baseline" piece of Daniel's writing demonstrates his awareness that the production of random…

  9. Bond-girl Eva Green: "Daniel ei ole sugugi halb" / Eva Green ; ref. Viktoria Ladõnskaja

    Index Scriptorium Estoniae

    Green, Eva

    2006-01-01

    Ajakirjanikud vaatasid Londonis uut Bondi-filmi "007 : Casino Royale" ja kohtusid pressikonverentsil peaosatäitjatega. Prantsusmaal elav rootsi-alžeeria päritolu näitlejanna Eva Green räägib oma rollist ja koostööst Bondi-kehastaja Daniel Craigiga

  10. Characterization and differentiation of Italian Parma, San Daniele and Toscano dry-cured hams: a multi-disciplinary approach.

    Science.gov (United States)

    Laureati, Monica; Buratti, Susanna; Giovanelli, Gabriella; Corazzin, Mirco; Lo Fiego, Domenico P; Pagliarini, Ella

    2014-01-01

    This study aimed at characterizing the sensory quality of Italian PDO dry-cured Parma, San Daniele and Toscano hams, applying a multi-disciplinary approach. Ham sensory profile as well as physico-chemical, aromatic, morphological and textural characteristics was investigated. There was a great difference between Toscano ham and Parma and San Daniele hams, which were more similar even though differentiated. Toscano ham showed higher scores for pork-meat odor, saltiness, dryness, fibrousness and hardness; accordingly, this ham was described by a high NaCl content and by high values of instrumental hardness, cohesiveness, gumminess and chewiness. Parma ham was characterized by a cured flavor, whereas San Daniele ham showed a wider fatty area and higher pH values. Parma and San Daniele hams were also described by higher values of sweetness, RGB color values and water activity. Sensory characteristics evaluated by trained assessors were correlated to instrumental measures, indicating that instrumental devices can be effectively applied for dry-cured ham characterization. © 2013.

  11. What Costs Do Reveal and Moving beyond the Cost Debate: Reply to Einstein and McDaniel (2010)

    Science.gov (United States)

    Smith, Rebekah E.

    2010-01-01

    Einstein et al. (2005) predicted no cost to an ongoing task when a prospective memory task met certain criteria. Smith, Hunt, McVay, and McConnell (2007) used prospective memory tasks that met these criteria and found a cost to the ongoing task, contrary to Einstein et al.'s prediction. Einstein and McDaniel (2010) correctly noted that there are…

  12. Evaluating the Ability of the PBS Children's Show Daniel Tiger's Neighborhood to Teach Skills to Two Young Children with Autism Spectrum Disorder.

    Science.gov (United States)

    Dotson, Wesley H; Rasmussen, Eric E; Shafer, Autumn; Colwell, Malinda; Densley, Rebecca L; Brewer, Adam T; Alonzo, Marisol C; Martinez, Laura A

    2017-03-01

    Daniel Tiger's Neighborhood is a children's television show incorporating many elements of video modeling, an intervention that can teach skills to children with autism spectrum disorders (ASD). This study evaluated the impact of watching Daniel Tiger's Neighborhood episodes on the accurate performance of trying new foods and stopping play politely with two five-year-old children with ASD. Both children showed improved performance of skills only following exposure to episodes of Daniel Tiger's Neighborhood , suggesting that watching episodes can help children with ASD learn specific skills.

  13. DANIEL MUNDURUKU E KAKA WERÁ JECUPÉ: UMA EXPERIÊNCIA DE LEITURA DO MUNDO DO OUTRO

    Directory of Open Access Journals (Sweden)

    Alana Fries

    2013-06-01

    Full Text Available Este artigo propõe que a experiência de leitura de textos de autoria indígena se mostra repleta de elementos que ultrapassam o âmbito literário, assim como os processos vivenciados por esses autores. Para alcançar o relato analítico das leituras de “Karaíba: uma história do pré-Brasil”, de Daniel Munduruku, e “Todas as vezes que dissemos adeus”, de Kaka Werá Jecupé, percorre-se uma reflexão que abrange elementos históricos e sociológicos que compõem a relação da sociedade não indígena com “o outro” indígena, e as noções de escrita e oralidade, de modo a identificar o que pode existir virtualmente entre autor, leitor e obra, interagindo com as possíveis leituras que os textos podem proporcionar.

  14. 1995 Emerging Leaders in Healthcare. The new leaders: Gita Budd, Colene Daniel, Elizabeth Gallup, Scott Wordelman.

    Science.gov (United States)

    Southwick, K

    1995-01-01

    Fierce pressures for cost containment. Demands for quality improvements. The drive toward patient-centered care. The push for community involvement. Insistent voices of payers, patients, consumers, physicians. Accumulated tensions amid the chaos of change. Balancing all of these demands while inspiring and encouraging the professionals and other workers within the healthcare organization requires a high level of leadership ability. One that insists on the best from everyone involved in a healthcare system--from physicians to staff, nurses to social workers. And then strives for more. The four young executives who are this year's Emerging Leaders in Healthcare have all pushed their systems beyond traditional boundaries into new territory, helping their patients, their employees, their physicians, and their communities rise to new levels of achievement. At the same time, these leaders emphasize teamwork and consensus-style management, so that their co-workers feel like they're participating in the changes, not being victimized by them. Gita Budd, Colene Daniel, Elizabeth Gallup, and Scott Wordelman are winners of the 1995 award from The Healthcare Forum and Korn/Ferry International that honors ¿dynamic, decisive young leaders (under 40) with the proven ability to nurture the growth of the industry.¿ Korn/Ferry International and The Healthcare Forum are proud to present 1995's Emerging Leaders.

  15. Perspectivas hermenêuticas do romance metaficcional Cordilheira, de Daniel Galera

    Directory of Open Access Journals (Sweden)

    Bianca Cardoso Batista

    2015-06-01

    Full Text Available Este artigo objetiva elucidar os conceitos e características da hermenêutica, segundo Alfredo Bosi e Richard Palmer, e da metaficção, segundo Linda Hutcheon, Patrícia Waugh e Gustavo Bernardo. A partir das considerações e do posicionamento hermenêutico adotado, será feita uma pesquisa acerca da vida e obra de Daniel Galera para entender o contexto no qual o livro Cordilheira foi escrito e também para que se possa obter uma interpretação aprofundada da obra. Nesta análise é possível identificar a metaficção que, segundo Linda Hutcheon, é uma “ficção sobre ficção”. Ao final do artigo pode-se concluir que o leitor que desconhece o posicionamento hermenêutico e a visão metaficcional não consegue captar o sentido do texto. A interpretação requer um leitor específico, empenhado e entregue à obra, por isso o texto metaficcional só se torna compreensível e, consequentemente, interessante, a um leitor mais preparado.

  16. De temperamentis disputatio medica (1593 – a forgotten work of Daniel Naborowski

    Directory of Open Access Journals (Sweden)

    Agnieszka Raubo

    2015-12-01

    Full Text Available The article describes a forgotten work of Daniel Naborowski – “De temperamentis disputatio medica” (1593. Naborowski was a poet who lived at the turn of the 17th century and the work considered here is the result of his medical studies in Switzerland. The article addresses the poet’s scholarly interests, but first and foremost, it focuses on the subject of the research – the theory of temperaments. With ancient lineage and extremely popular in the sixteenth century, the theory was most frequently presented in the contexts of physiognomy, astrology and the lesions that were conditioned by the theory, yet in Naborowski’s work, it gained a new, solely theoretical perspec-tive. It was also concerned with the meticulous consideration of the systematics of temperaments (e.g. their differentiation – one was moderate and eight were merged, as well as their detailed division. The style of these considerations is characteristic for medical works of that period, and they constitute an interesting example of how practical issues in 16th and 17th century medicine were systematized. Furthermore, Naborowski’s considerations are a vivid example of permeable nature of disciplines – philosophy and medicine, and medicine with the broadly understood field of the humanities.

  17. The Daniell cell, Ohm's law, and the emergence of the International System of Units

    Science.gov (United States)

    Jayson, Joel S.

    2014-01-01

    Telegraphy originated in the 1830s and 40 s and flourished in the following decades but with a patchwork of electrical standards. Electromotive force was for the most part measured in units of the predominant Daniell cell, but each telegraphy company had their own resistance standard. In 1862, the British Association for the Advancement of Science formed a committee to address this situation. By 1873, they had given definition to the electromagnetic system of units (emu) and defined the practical units of the ohm as 109 emu units of resistance and the volt as 108 emu units of electromotive force. These recommendations were ratified and expanded upon in a series of international congresses held between 1881 and 1904. A proposal by Giovanni Giorgi in 1901 took advantage of a coincidence between the conversion of the units of energy in the emu system (the erg) and in the practical system (the Joule). As it was, the same conversion factor existed between the cgs based emu system and a theretofore undefined MKS system. By introducing another unit X (where X could be any of the practical electrical units), Giorgi demonstrated that a self-consistent MKSX system was tenable without the need for multiplying factors. Ultimately, the ampere was selected as the fourth unit. It took nearly 60 years, but in 1960, Giorgi's proposal was incorporated as the core of the newly inaugurated International System of Units (SI). This article surveys the physics, physicists, and events that contributed to those developments.

  18. Pensar con sonidos. Los universos musicales en El Trino del Diablo de Daniel Moyano

    Directory of Open Access Journals (Sweden)

    Irene Noemi López

    2017-07-01

    Full Text Available La música ocupa un lugar predominante en la producción literaria de Daniel Moyano. Su escritura entrama en diversos planos –semántico, formal, ideológico- referencias y procedimientos provenientes del discurso musical construyendo un espacio textual complejo. Consideramos por ello que a través de su estudio es posible colaborar en la reflexión acerca de las múltiples formas de producción de sentido que se generan en el  diálogo entre lenguajes artísticos, en este caso entre música y literatura.   En este trabajo realizamos una lectura de El trino del diablo para mostrar las formas en que el universo narrativo de la novela se configura a través de la incorporación de mitos y concepciones acerca de la música y los intérpretes, incidiendo en la construcción de espacios de pertenencia y marcos de referencia cultural e identitaria. Asimismo, la lectura en torno a la textualización de prácticas, valores y referencias musicales constituye una forma posible de conocimiento y comprensión del mundo político y social de los años 1970 en Argentina.

  19. A STUDY OF THE DEGREES OF EMOTIONAL INTELLIGENCE ON PROBLEM SOLVING SKILLS IN THE WAY OF DANIEL GOLEMAN

    OpenAIRE

    Yalın, Elif; SÖZEN, İlyas

    2015-01-01

    The aim of the study is to reveal the effects of emotional intelligence upon problem-solving for business challenges that an employee meets at any time in business life. For this purpose, it is aimed to analyze behaviors of 135 white collars working in textile and food industry by making them complete self-report surveys. Prior to the survey, it has highly been suggested that emotional traits consisting of intrapersonal, interpersonal, motivation and self management are effective. Daniel Gole...

  20. Simulation

    DEFF Research Database (Denmark)

    Gould, Derek A; Chalmers, Nicholas; Johnson, Sheena J

    2012-01-01

    Recognition of the many limitations of traditional apprenticeship training is driving new approaches to learning medical procedural skills. Among simulation technologies and methods available today, computer-based systems are topical and bring the benefits of automated, repeatable, and reliable p...... performance assessments. Human factors research is central to simulator model development that is relevant to real-world imaging-guided interventional tasks and to the credentialing programs in which it would be used....

  1. Dicósimo, Daniel y Simonassi, Silvia (comp., Trabajadores y empresarios en la Argentina del siglo XX: indagaciones desde la historia social

    Directory of Open Access Journals (Sweden)

    Valeria Ianni

    2013-01-01

    Full Text Available Dicósimo, Daniel y Simonassi, Silvia (comp., Trabajadores y empresarios en la Argentina del siglo XX: indagaciones desde la historia social, Prohistoria ediciones, Rosario, 2011 (194 págs..

  2. Kolm Eesti Robinsoni: Daniel Defoe romaan eesti tõlkes / Three Estonian Robinsons: Daniel Defoe’s Novel in Estonian Translation

    Directory of Open Access Journals (Sweden)

    Ene-Reet Soovik

    2012-06-01

    Full Text Available The article discusses three Estonian translations of Daniel Defoe’s Robinson Crusoe into Estonian with the focus on the completeness of the translated texts and the characterisation given to these in paratextual information. While there are several translations and versions of the tex t available in E stonian that have either used a mediating language or do not proceed directly from Defoe’s novel, three editions explicitly list Defoe’s English-language Robinson Crusoe as their source text. These are Rudolf Sirge’s translation from 1950 and two editions translated by Valter Rummel that appeared in 1984 (reprinted in 2001 and 2007, respectively. The article sets out to discover the main differences between the three editions and the possible reasons that may have triggered their publication in Estonia at those particular times. In order to approach the issues, a general framework derived from descriptive translation studies is employed with an emphasis on Gideon Toury’s chrestomatic treatment of translation norms. Thus an attempt is made to detect the preliminary translational norms regarding translation policy, particularly the choice of texts to be translated, as well as the matricial norms that concern the fullness of the translated text and are part of operational norms manifested in the translator’s decisions which, in two of the cases at hand, may also have been decisions made by the editor or the censor. Rudolf Sirge’s translation appeared at a time when Estonia had fairly recently been incorporated into the Soviet Union and there was a lack of children’s literature ideologically appreciated by the regime. This may account for the packaging of the book as a work with a strong didactic bent, while its primary audience was taken to be children and young adults for whom the protagonist served as an example of a hard-working and tenacious hero to be emulated by young Soviets. The target text has been considerably shortened as

  3. A 21 day Daniel Fast improves selected biomarkers of antioxidant status and oxidative stress in men and women

    Directory of Open Access Journals (Sweden)

    Canale Robert E

    2011-03-01

    Full Text Available Abstract Background Dietary modification via both caloric and nutrient restriction is associated with multiple health benefits, some of which are related to an improvement in antioxidant status and a decrease in the production of reactive oxygen species. The Daniel Fast is based on the Biblical book of Daniel, is commonly partaken for 21 days, and involves food intake in accordance with a stringent vegan diet. The purpose of the present study was to determine the effect of a 21 day Daniel Fast on biomarkers of antioxidant status and oxidative stress. Methods 43 subjects (13 men; 30 women; 35 ± 1 yrs; range: 20-62 yrs completed a 21 day Daniel Fast following the guidelines provided by investigators. Subjects reported to the lab in a 12 hour post-absorptive state both pre fast (day 1 and post fast (day 22. At each visit, blood was collected for determination of malondialdehyde (MDA, hydrogen peroxide (H2O2, nitrate/nitrite (NOx, Trolox Equivalent Antioxidant Capacity (TEAC, and Oxygen Radical Absorbance Capacity (ORAC. Subjects recorded dietary intake during the 7 day period immediately prior to the fast and during the final 7 days of the fast. Results A decrease was noted in MDA (0.66 ± 0.0.03 vs. 0.56 ± 0.02 μmol L-1; p = 0.004, while H2O2 demonstrated a trend for lowering (4.42 ± 0.32 vs. 3.78 ± 0.21 μmol L-1; p = 0.074. Both NOx (18.79 ± 1.92 vs. 26.97 ± 2.40 μmol L-1; p = 0.003 and TEAC (0.47 ± 0.01 vs. 0.51 ± 0.01 mmol L-1; p = 0.001 increased from pre to post fast, while ORAC was unchanged (5243 ± 103 vs. 5249 ± 183 μmol L-1 TE; p = 0.974. As expected, multiple differences in dietary intake were noted (p Conclusion Modification of dietary intake in accordance with the Daniel Fast is associated with an improvement in selected biomarkers of antioxidant status and oxidative stress, including metabolites of nitric oxide (i.e., NOx.

  4. Participant compliance to a six‐month traditional and modified Daniel Fast

    Directory of Open Access Journals (Sweden)

    Richard Bloomer

    2014-09-01

    Full Text Available Background: We have previously reported multiple health benefits in individuals following the Christian-based fasting protocol known as the Daniel Fast (DF. However, our prior work has involved only short-term (21-day assessments. For dietary modification to have a profound impact on health, compliance to the dietary plan must be established for the long-term. Materials and Methods We determined the 6-month compliance to a traditional (vegan DF (n=12, as well as a modified DF (n=9; allowing for the inclusion of small amounts of meat and milk in healthy individuals. Participants completed diet records during the study period and also rated their overall compliance to the assigned dietary plan. Results Compliance to both dietary plans proved to be satisfactory (approximately 80% in the 6th month; 85% in the 3rd month and 95% during the 3rd week. It is noteworthy that it did not show any major differences between groups. Body weight, from baseline toward month 6, saw a decline in participants assigned to both the traditional DF (79.6±5.3 to 75.5±5.5 kg and the modified DF (80.4±8.0 to 74.3±6.5 kg. Conclusion These data indicated that both the traditional and modified DF, which involve ad libitum (Latin for “at liberty” feeding, are realistic for individuals to comply with over a period of several months. Such compliance is associated with a weight loss of approximately 5-8% of the body mass and considering the multi-faceted health benefits of this particular dietary approach, it may result in worthy improvements in overall health. Additional studies of the long-term health implications of this fasting method are also required.

  5. Construction Status and Early Science with the Daniel K. Inouye Solar Telescope

    Science.gov (United States)

    McMullin, Joseph P.; Rimmele, Thomas R.; Warner, Mark; Martinez Pillet, Valentin; Craig, Simon; Woeger, Friedrich; Tritschler, Alexandra; Berukoff, Steven J.; Casini, Roberto; Goode, Philip R.; Knoelker, Michael; Kuhn, Jeffrey Richard; Lin, Haosheng; Mathioudakis, Mihalis; Reardon, Kevin P.; Rosner, Robert; Schmidt, Wolfgang

    2016-05-01

    The 4-m Daniel K. Inouye Solar Telescope (DKIST) is in its seventh year of overall development and its fourth year of site construction on the summit of Haleakala, Maui. The Site Facilities (Utility Building and Support & Operations Building) are in place with ongoing construction of the Telescope Mount Assembly within. Off-site the fabrication of the component systems is completing with early integration testing and verification starting.Once complete this facility will provide the highest sensitivity and resolution for study of solar magnetism and the drivers of key processes impacting Earth (solar wind, flares, coronal mass ejections, and variability in solar output). The DKIST will be equipped initially with a battery of first light instruments which cover a spectral range from the UV (380 nm) to the near IR (5000 nm), and capable of providing both imaging and spectro-polarimetric measurements throughout the solar atmosphere (photosphere, chromosphere, and corona); these instruments are being developed by the National Solar Observatory (Visible Broadband Imager), High Altitude Observatory (Visible Spectro-Polarimeter), Kiepenheuer Institute (Visible Tunable Filter) and the University of Hawaii (Cryogenic Near-Infrared Spectro-Polarimeter and the Diffraction-Limited Near-Infrared Spectro-Polarimeter). Further, a United Kingdom consortium led by Queen's University Belfast is driving the development of high speed cameras essential for capturing the highly dynamic processes measured by these instruments. Finally, a state-of-the-art adaptive optics system will support diffraction limited imaging capable of resolving features approximately 20 km in scale on the Sun.We present the overall status of the construction phase along with the current challenges as well as a review of the planned science testing and the transition into early science operations.

  6. [Work, momentum and fatigue in the work of Daniel Bernoulli: toward the optimization of biological fact].

    Science.gov (United States)

    Fonteneau, Yannick; Viard, Jérôme

    The concept of mechanical work is inherited from the concepts of potentia absoluta and men's work, both implemented in the section IX of Daniel Bernoulli's Hydrodynamica in 1738. Nonetheless, Bernoulli did not confuse these two entities: he defined a link from gender to species between the former, which is general, and the latter, which is organic. In addition, Bernoulli clearly distinguished between vis viva and potentia absoluta (or work). Their reciprocal conversions are rarely mentioned explicitly in this book, except once, in the section X of his work, from vis viva to work, and subordinated to the mediation of a machine, in a driving forces substitution problem. His attitude evolved significantly in a text in 1753, in which work and vis viva were unambiguously connected, while the concept of potentia absoluta was reduced to that of human work, and the expression itself was abandoned. It was then accepted that work can be converted into vis viva, but the opposite is true in only one case, the intra-organic one. It is the concept of fatigue, seen as an expenditure of animal spirits themselves conceived of as little tensed springs releasing vis viva, that allowed the conversion, never quantified and listed simply as a model, from vis viva to work. Thus, work may have ultimately appeared as a transitional state between two kinds of vis viva, of which the first is non-quantifiable. At the same time, the natural elements were discredited from any hint of profitable production. Only men and animals were able to work in the strict sense of the word. Nature, left to itself, does not work, according to Bernoulli. In spite of his wish to bring together rational mechanics and practical mechanics, one perceived in the work of Bernoulli the subsistence of a rarely crossed disjunction between practical and theoretical fields.

  7. Simulation

    CERN Document Server

    Ross, Sheldon

    2006-01-01

    Ross's Simulation, Fourth Edition introduces aspiring and practicing actuaries, engineers, computer scientists and others to the practical aspects of constructing computerized simulation studies to analyze and interpret real phenomena. Readers learn to apply results of these analyses to problems in a wide variety of fields to obtain effective, accurate solutions and make predictions about future outcomes. This text explains how a computer can be used to generate random numbers, and how to use these random numbers to generate the behavior of a stochastic model over time. It presents the statist

  8. Natureza, colonização e utopia na obra de João Daniel Nature, colonization, and utopia in the works of João Daniel

    Directory of Open Access Journals (Sweden)

    Kelerson Semerene Costa

    2007-12-01

    Full Text Available Este artigo analisa alguns aspectos do Tesouro descoberto no rio Amazonas, obra composta pelo padre João Daniel (1722-1776, missionário jesuíta no Estado do Maranhão e Grão-Pará entre 1741 e 1757, desterrado para Lisboa dois anos antes do banimento da Companhia de Jesus da América portuguesa. A obra, registro singular da Amazônia de meados do século XVIII, oferece um compêndio das riquezas e potencialidades da região. Sobretudo, apresenta um projeto para a colonização crítico ao modelo então em vigor e que se apresenta como um conjunto integrado que considera as condições ambientais, a técnica e as relações sociais na organização da sociedade local. Ao colocar no centro de seu projeto a questão do trabalho, João Daniel recupera, como metáfora, a idéia - marcante na literatura missionária do século XVII e praticamente abandonada no século XVIII - da Amazônia como paraíso terrestre.The article analyzes certain aspects of "Tesouro descoberto no rio Amazonas" (Treasure discovered on the Amazon River, written by João Daniel (1722-76 during his time in the State of Maranhão e Grão-Pará as a Jesuit missionary between 1741 and 1757; the priest was banished to Lisbon two years before the Company of Jesus was expelled from Portuguese America. This unique record of the mid-eighteenth-century Amazon is a compendium on the region's wealth and potential. Most importantly, it put forward a colonization project that was critical of the model then in place; the new proposal was an integrated whole which took environmental conditions, technology, and social relations into account in the organization of local society. In centering his project on the issue of labor, João Daniel revives, as a metaphor, the idea of the Amazon as an earthly paradise-a notion that had characterized seventeenth-century missionary literature but was practically abandoned in the eighteenth century.

  9. Status of the Daniel K. Inouye Solar Telescope: unraveling the mysteries the Sun.

    Science.gov (United States)

    Rimmele, Thomas R.; Pillet, Valentin; Goode, Philip R.; Knoelker, Michael; Kuhn, Jeffrey Richard; Rosner, Robert; Casini, Roberto; Lin, Haosheng; von der Luehe, Oskar; Woeger, Friedrich; Tritschler, Alexandra; Fehlmann, Andre; Jaeggli, Sarah A.; Schmidt, Wolfgang; De Wijn, Alfred; Rast, Mark; Harrington, David M.; Sueoka, Stacey R.; Beck, Christian; Schad, Thomas A.; Warner, Mark; McMullin, Joseph P.; Berukoff, Steven J.; Mathioudakis, Mihalis; DKIST Team

    2018-06-01

    The 4m Daniel K. Inouye Solar Telescope (DKIST) currently under construction on Haleakala, Maui will be the world’s largest solar telescope. Designed to meet the needs of critical high resolution and high sensitivity spectral and polarimetric observations of the sun, this facility will perform key observations of our nearest star that matters most to humankind. DKIST’s superb resolution and sensitivity will enable astronomers to address many of the fundamental problems in solar and stellar astrophysics, including the origin of stellar magnetism, the mechanisms of coronal heating and drivers of the solar wind, flares, coronal mass ejections and variability in solar and stellar output. DKIST will also address basic research aspects of Space Weather and help improve predictive capabilities. In combination with synoptic observations and theoretical modeling DKIST will unravel the many remaining mysteries of the Sun.The construction of DKIST is progressing on schedule with 80% of the facility complete. Operations are scheduled to begin early 2020. DKIST will replace the NSO facilities on Kitt Peak and Sac Peak with a national facility with worldwide unique capabilities. The design allows DKIST to operate as a coronagraph. Taking advantage of its large aperture and infrared polarimeters DKIST will be capable to routinely measure the currently illusive coronal magnetic fields. The state-of-the-art adaptive optics system provides diffraction limited imaging and the ability to resolve features approximately 20 km on the Sun. Achieving this resolution is critical for the ability to observe magnetic structures at their intrinsic, fundamental scales. Five instruments will be available at the start of operations, four of which will provide highly sensitive measurements of solar magnetic fields throughout the solar atmosphere – from the photosphere to the corona. The data from these instruments will be distributed to the world wide community via the NSO/DKIST data center

  10. Fluor Daniel Hanford implementation plan for DOE Order 5480.28. Natural phenomena hazards mitigation

    International Nuclear Information System (INIS)

    Conrads, T.J.

    1997-01-01

    Natural phenomena hazards (NPH) are unexpected acts of nature that pose a threat or danger to workers, the public, or the environment. Earthquakes, extreme winds (hurricane and tornado), snow, flooding, volcanic ashfall, and lightning strikes are examples of NPH that could occur at the Hanford Site. U.S. Department of Energy (DOE) policy requires facilities to be designed, constructed, and operated in a manner that protects workers, the public, and the environment from hazards caused by natural phenomena. DOE Order 5480.28, Natural Phenomena Hazards Mitigation, includes rigorous new natural phenomena criteria for the design of new DOE facilities, as well as for the evaluation and, if necessary, upgrade of existing DOE facilities. The Order was transmitted to Westinghouse Hanford Company in 1993 for compliance and is also identified in the Project Hanford Management Contract, Section J, Appendix C. Criteria and requirements of DOE Order 5480.28 are included in five standards, the last of which, DOE-STD-1023, was released in fiscal year 1996. Because the Order was released before all of its required standards were released, enforcement of the Order was waived pending release of the last standard and determination of an in-force date by DOE Richland Operations Office (DOE-RL). Agreement also was reached between the Management and Operations Contractor and DOE-RL that the Order would become enforceable for new structures, systems, and components (SSCS) 60 days following issue of a new order-based design criteria in HNF-PRO-97, Engineering Design and Evaluation. The order also requires that commitments addressing existing SSCs be included in an implementation plan that is to be issued 1 year following the release of the last standard. Subsequently, WHC-SP-1175, Westinghouse Hanford Company Implementation Plan for DOE Order 5480.28, Natural Phenomena Hazards Mitigation, Rev. 0, was issued in November 1996, and this document, HNF-SP-1175, Fluor Daniel Hanford

  11. Grouting of the cracks in the Arch 5-6 Daniel Johnson dam

    International Nuclear Information System (INIS)

    Lariviere, R.; Routhier, L.; Roy, V.; Saleh, K.; Tremblay, S.

    1999-01-01

    The Daniel-Johnson dam is located 800 km northeast of Montreal, PQ, and is 1314 m in length and 214 m high. Just after completion of dam construction different types of cracks started to appear on the upstream and downstream faces. During and after the construction of the dam, numerous cracks and joints were grouted in order to reduce water infiltration. In some cases, as a result of high injection pressures and inaccurate methods, the injections provoked the propagation of the existing cracks or the initiation of new ones. Because of this situation and to determine the contribution of injection to dam safety, in 1985, Hydro-Quebec applied a moratorium on all future injection work on the dam. Research work was initiated in 1986 in the areas of grouting materials, methods, equipment and behavioral analysis to establish a safe method for the injection of the cracks. A committee was formed in 1993 with members from various groups, in order to: carry out extensive behavioral analysis of the Arch 5-6 dam, carry out an investigation program in order to determine the cause of the increase of the water infiltration, undertake a structural analysis program in order to evaluate the impact of an injection on the safety of the dam, and identify the proper method and injection products to use. In 1997, as a result of the progress of the structural analysis studies and the injection research project, a decision was made to proceed with the injection of the dam. A description is included of the results of the investigation, recommendations and results of the injection research project, as well as some details of the grouting campaign carried out in January 1999. On the whole, a better knowledge was acquired of the structure, of the plunging cracks and the behaviour of the dam during the injection. In the field of injection methods, materials and equipment, research work was invaluable when it came to the injection of micro-fine cracks in concrete dams. 5 refs., 8 figs

  12. Optimal piston motion for maximum net output work of Daniel cam engines with low heat rejection

    International Nuclear Information System (INIS)

    Badescu, Viorel

    2015-01-01

    Highlights: • The piston motion of low heat rejection compression ignition engines is optimized. • A realistic model taking into account the cooling system is developed. • The optimized cam is smaller for cylinders without thermal insulation. • The optimized cam size depends on ignition moment and cooling process intensity. - Abstract: Compression ignition engines based on classical tapper-crank systems cannot provide optimal piston motion. Cam engines are more appropriate for this purpose. In this paper the piston motion of a Daniel cam engine is optimized. Piston acceleration is taken as a control. The objective is to maximize the net output work during the compression and power strokes. A major research effort has been allocated in the last two decades for the development of low heat rejection engines. A thermally insulated cylinder is considered and a realistic model taking into account the cooling system is developed. The sinusoidal approximation of piston motion in the classical tapper-crank system overestimates the engine efficiency. The exact description of the piston motion in tapper-crank system is used here as a reference. The radiation process has negligible effects during the optimization. The approach with no constraint on piston acceleration is a reasonable approximation. The net output work is much larger (by 12–13%) for the optimized system than for the classical tapper-crank system, for similar thickness of cylinder walls and thermal insulation. Low heat rejection measures are not of significant importance for optimized cam engines. The optimized cam is smaller for a cylinder without thermal insulation than for an insulated cylinder (by up to 8%, depending on the local polar radius). The auto-ignition moment is not a parameter of significant importance for optimized cam engines. However, for given cylinder wall and insulation materials there is an optimum auto-ignition moment which maximizes the net output work. The optimum auto

  13. Analýza image produktu Jack Daniel´s Tennessee Fire na českém trhu

    OpenAIRE

    Papoušek, Jiří

    2015-01-01

    This Diploma Thesis focuses on a new alcoholic product in the Czech Republic - Jack Daniel's Tennessee Fire. It examines its popularity amongst consumers, its relation to other products in the range of the brand and to the main competitors of the other brands. For better interpretation of the results there is a questionnaire research. The aim of this work is the image analysis of this product in the Czech market and to offer potential recommendations for the brand in the future which come out...

  14. Imaginarios de la migración/Migraciones del imaginario: “Ausencia” de Daniel Alarcón

    Directory of Open Access Journals (Sweden)

    Pamela Tala

    2011-06-01

    Full Text Available This article explores the characteristics adopted by the discourse of the migrant subject in the story "Ausencia" (Absence by the Peruvian writer Daniel Alarcón. Since the verification of a nomadic subject, it examines the re- articulation of the notions of territory, center / periphery and the confrontation with the "other." As a result of the analysis of these issues, we conclude that this narrative by Alarcón offers no relief to the subject from a dialectical synthesis of his identity; on the contrary, it leaves him suspended in an unfinished and amazed identification process.

  15. Advances in complex analysis and operator theory festschrift in honor of Daniel Alpay’s 60th birthday

    CERN Document Server

    Sabadini, Irene; Struppa, Daniele; Vajiac, Mihaela

    2017-01-01

    This book gathers contributions written by Daniel Alpay’s friends and collaborators. Several of the papers were presented at the International Conference on Complex Analysis and Operator Theory held in honor of Professor Alpay’s 60th birthday at Chapman University in November 2016. The main topics covered are complex analysis, operator theory and other areas of mathematics close to Alpay’s primary research interests. The book is recommended for mathematicians from the graduate level on, working in various areas of mathematical analysis, operator theory, infinite dimensional analysis, linear systems, and stochastic processes.

  16. El presbítero daniel jordán contreras en el oriente y nororiente colombiano, 1930-1948

    OpenAIRE

    Cáceres Mateus, Sergio Armando

    2014-01-01

    Este texto es fruto de una investigación sobre la vida y el trabajo del presbítero DanielJordán Contreras (1899-1979). Describe y analiza su actuar político-religioso en diferentesparroquias de la diócesis de Pamplona en el período de 1930-1948, y de estaforma hace un aporte a la construcción de la historia político-religiosa de la primeramitad del siglo XX en Colombia, especí!camente en la región de Oriente y Nororiente.

  17. Closing remarks at the symposium in honour of Daniel Bellus. Pharmacenter, University of Basel, February 6, 2009.

    Science.gov (United States)

    Ganter, Camille

    2010-01-01

    In the Closing Remarks at the Symposium on 'Frontiers in Bioorganic Chemistry' (Friday, February 6, 2009, Pharmacenter, University of Basel) in honour of Daniel Bellus, his arrival in Zürich in fall 1967 and especially his postdoctoral work at the Laboratorium für Organische Chemie at the Eidgenössische Technische Hochschule (ETH) in Zürich throughout the year 1967/68 were mentioned. In his most remarkable paper (published in 1969 in Helv. Chim. Acta), the photochemistry of the alpha,beta-unsaturated cyclohexenones O-acetyl-testosterone and 10-methy-delta1,9-octalon-(2) is described in detail. Change of solvent leads to lowering or increasing of the n,pi*- and (pi,pi*)-triplet energies, resulting in a crossing of the two energy levels. Personal remarks on Daniel Bellus and warmest thanks to him, to Profs. Beat Ernst and Bernd Giese (the organizers of the symposium) and to all the speakers concluded this most special event.

  18. The Power of Legal and Historical Fiction(s: The Daniels Decision and the Enduring Influence of Colonial Ideology

    Directory of Open Access Journals (Sweden)

    Brenda Mcdougall

    2016-07-01

    Full Text Available It’s been several months since the Supreme Court of Canada (SCC rendered its judgment in Daniels v. Canada (2016, affirming that the term “Indian” in s. 91(24 of the Constitution Act (1867 includes Métis and Non-Status Indians. There is a general hope that the decision marks a turning point for Métis and Non-Status Indians within Canada’s colonial structures. I’m not certain this optimism is justified. The judgment was reached based on the types of historical evidence presented and, consequently, there are a couple of statements within the written judgment that give me pause to question how the evidence regarding the histories of Métis and Non-Status Indians were presented to, and then interpreted by, the justices. Bearing in mind that the crux of the case rested on the linguistic meaning and evolution of the term “Indian” in Canadian society through law and policy, evidence was introduced about how the term was used at various points in the past, as well as the context of that usage in order to demonstrate the evolution of a Canadian legal and historical fiction that increasingly restricted the idea of what an Indian was. What the SCC did with the Daniels Decision is reverse that restrictive trend for Indians while constructing new problems.

  19. Favorable cardio-metabolic outcomes following high carbohydrate intake in accordance with the Daniel Fast: A review of available findings

    Directory of Open Access Journals (Sweden)

    Richard Bloomer

    2017-03-01

    Full Text Available The Daniel Fast is a biblically inspired dietary program rich in carbohydrate, most closely resembling a vegan diet but with additional restrictions, including the elimination of processed foods, white flour products, preservatives, additives, sweeteners, caffeine, and alcohol. While no specific requirements are placed on the ingestion of specific percentages of macronutrients, the mean daily carbohydrate intake is by default approximately 60%, while protein and fat intake are 15% and 25%, respectively. Despite a relatively high carbohydrate intake, multiple favorable cardio-metabolic effects are noted when following the plan, in as few as three weeks. This includes improvements in HOMA-IR, which may be at least in part due to the lower glycemic load and high dietary fiber content of the foods consumed. Other notable changes include reductions in systemic inflammation, total and LDL-cholesterol, oxidative stress, blood pressure, and body weight/body fat. Short and moderate-term compliance to the program is excellent-better than most dietary programs, perhaps due to the ad libitum nature of this plan. This paper presents an overview of the Daniel Fast, a carbohydrate-rich dietary program, including relevant findings from both human and animal investigations using this dietary model.

  20. Ruptures scolaires. L'école à l'épreuve de la question sociale de Mathias Millet et Daniel Thin

    OpenAIRE

    Yvorel, Jean-Jacques

    2006-01-01

    Mathias Millet, Daniel Thin Ruptures scolaires. L'école à l'épreuve de la question sociale Paris, puf, 2005, 318 pages. 25 € L'ouvrage que nous proposent Mathias Millet et Daniel Thin repose sur l'étude intensive (terme utilisé par les auteurs) d'une vingtaine de situations de rupture scolaire. Par étude intensive, il faut entendre une méthode d'investigation qui confronte les discours et les informations disponibles sur le parcours d'un individu en incluant le discours « autobiographique ». ...

  1. Fantasia? Lusitana? Cinema, História(s de vida e ética artística em Daniel Blaufuks e João Canijo

    Directory of Open Access Journals (Sweden)

    Ana Salgueiro Rodrigues

    2010-12-01

    Full Text Available Focusing our attention on the inter-arts project Sob céus estranhos. Uma história de exílios, by Daniel Blaufuks, and the film Fantasia lusitana, by João Canijo, we will try to demonstrate, trough a revisitation of a variety of representation (public and private, artistic and documents that both Daniel Blaufuks and João Canijo, question the truth of the History and aesthetics, the deontology and the (possible truth of contemporary art.

  2. Constantine the Great and Daniel the Prophet: iconographic and ideologic problems in the Constantine’s Constantinople | Constantino el Grande y Daniel el Profeta: problemas de iconografía e ideología en la Constantinopla constantiniana

    Directory of Open Access Journals (Sweden)

    Teodoro Crespo Mas

    2008-12-01

    Full Text Available In this paper we propose to reconsider the veracity of a passage of the Vita Constantini (III, 49 of Eusebius de Caesarea, which different authors with different points of view have considered false. The controversy focuses on the existence of two statues, the Good Shepherd and Daniel between the Lions, which Constantine would have had placed in the fountains of the squares in Constantinople, according to Eusebius. Our intention is to prove that, contrary to other interpretations, the meaning of these two statues would perfectly fit in that historical context, and it could even have played a main role in the Emperor’s iconographical and ideological program when Constantinople was founded, for the necessity to legitimate the absolute power he had obtained after the end of the Tetrarchy. | En el presente artículo proponemos reconsiderar la veracidad de un pasaje de la Vita Constantini (III, 49 de Eusebio de Cesarea, que distintos autores, desde diversos puntos de vista, han estimado falso. La polémica gira en torno a la existencia de dos estatuas, del Buen Pastor y de Daniel entre los leones, que Constantino habría hecho poner en las fuentes de las plazas de Constantinopla, y que Eusebio afirmaba haber visto. Nuestra intención es la de demostrar que, contrariamente a lo defendido por otras interpretaciones, el significado de estas dos estatuas encajaría perfectamente en aquel contexto histórico, y podrían haber jugado incluso un rol de primer orden en un programa iconográfico-ideológico del emperador en el momento de la fundación de Constantinopla, por la necesidad de legitimar el poder unipersonal al que había llegado después de acabar con la Tetrarquía.

  3. Daniel Cornu, Tous connectés ! Internet et les nouvelles frontières de l’info

    OpenAIRE

    Serrano, Yeny

    2014-01-01

    Médiateur des publications romandes du groupe Tamedia avec une expérience de journaliste et d’enseignant d’éthique du journalisme, Daniel Cornu analyse l’évolution du journalisme d’information suite à l’avènement du web 2.0. Le livre est très bien documenté avec des ouvrages classiques sur le journalisme (histoire et déontologie), des études récentes sur l’internet et le web 2.0 ainsi que des exemples concernant plusieurs pays dont la Suisse, la Belgique, la France et les États-Unis. Dans l’o...

  4. Arnaut Daniel, “D’autra guiza e d’autra razo” (BdT 29.7

    Directory of Open Access Journals (Sweden)

    Gianluca Valenti

    2012-09-01

    Full Text Available This paper will focus on some specific aspects of Arnaut Daniel’s “D’autra guiza e d’autra razo” which, despite its success in its day and age (some verses were reused by Petrarch in the opening sonnet of the “RVF”, has received little critical attention in modern times. In particular, I will examine the incipit (whose alterity with respect to the rest of the Occitan lyric tradition points to an explicit declaration of intent on the part of the author, the lack of a tornada and, finally, the possibility that Arnaut Daniel was influenced by the section in the “Rhetorica ad Herennium” devoted to mnemonic technique. Moreover, the hypothesis that material concerning the art of memory has been used here helps to explain some particularly problematic textual loci, such as ll. 5-7 and 34.

  5. Juan Daniel Weber en Aullagas (1790: De minero de segunda en Europa a experto en Potosí

    Directory of Open Access Journals (Sweden)

    María Concepción Gavira Marquez

    2015-02-01

    Full Text Available Este trabajo aborda la expedición de metalúrgicos centro europeos comisionados por la Corona española para modernizar la minería americana a fines del siglo XVIII. En concreto, nos centraremos en un personaje especial, Juan Daniel Weber, miembro de la comisión destinada a la región andina liderada por Nordenflycht y que pasó por Potosí sin ningún éxito en cuanto a sus objetivos prioritarios. Aunque Weber en principio no estaba destinado a Alto Perú, permaneció en Potosí, donde se distinguió por dedicarse a defender sus intereses particulares en Aullagas, Chayanta, concretamente invirtiendo en empresas para el desagüe de la veta de Colquechaca y San Bartolomé.   This paper addresses the issue of Central European metal workers commissioned by the Spanish Crown to modernize the American mining activity in the late 18th century. In particular, we focus on a special character, Juan Daniel Weber, a member of the commission sent to the Andean region led by Nordenflycht and that passed by Potosí without achieving any of its main goals. Although, initially, Weber was not destined to go to Upper Peru, he stayed in Potosí, where he stood out for defending his own interests in Aullagas, Chayanta, investing specifically in companies dedicated to seam drainage in Colquechaca and San Bartolomé.

  6. The Trouble with Moral Citizens: A Response to "Moral-Character Development for Teacher Education" by Daniel Lapsley and Ryan Woodbury

    Science.gov (United States)

    Westheimer, Joel

    2016-01-01

    In "Moral-Character Development for Teacher Education," Daniel Lapsley and Ryan Woodbury argue that teacher education licensure and accreditation standards largely ignore matters of values, character, and morality. "The moral-character formation of children," they note, "is the instructional objective that dare not speak…

  7. A Critical Discussion of the Efficacy of Using Visual Learning Aids from the Internet to Promote Understanding, Illustrated with Examples Explaining the Daniell Voltaic Cell

    Science.gov (United States)

    Eilks, Ingo; Witteck, Torsten; Pietzner, Verena

    2009-01-01

    This paper discusses what chemistry students might see while working with animations found on the Internet and how these electronic illustrations can potentially interact to reinforce rather than resolve misconceptions about chemical principles that a student may possess. The Daniell voltaic cell serves as an example to illustrate the ways in…

  8. Daniele Crivellari, Marcas autoriales de segmentación en las comedias autógrafas de Lope de Vega: estudio y análisis

    Directory of Open Access Journals (Sweden)

    Eugenio Maggi

    2015-01-01

    Full Text Available Review of Daniele Crivellari, Marcas autoriales de segmentación en las comedias autógrafas de Lope de Vega: estudio y análisis, Edition Reichenberger, Kassel, 2013, 440 pp. ISBN: 9783944244075.

  9. The receptions of literary disputes against heretics in Josephite literacy (based on «The Word about the Incarnation» by Daniel Metropolitan

    Directory of Open Access Journals (Sweden)

    IY. STARIKOV

    2014-04-01

    Full Text Available The article investigates the literary controversy in the Russian Church in the fi rst half of the XVI century. Author conducted a literary and textual analysis of one of the largest polemical writings of Metropolitan Daniel of Moscow — «The word of the Incarnation of our Lord Jesus Christ.» This work was part of the composition «Sobornik slov» of Metropolitan Daniel, however, was never published and attracted the attention of researchers. At the same time it is the only writing in ancient russian literacy, where polemics with «netlennomnimaya» heresy, in which during the council in 1531, Daniel has accused the prince-monk Vassian (Patrikeev. The author established the county direct textual relationship «Sudnoe delo» of Vassian from «the Incarnation of the Word.» In addition, based on the study of ancient lists of «Words» author identifi ed the major literary devices and methods of Josephite polemicists school in the beginning of XVI century. «The word of the Incarnation» and many other works of Metropolitan Daniel examined in the paper as complex literary works, where identifies several levels of meaning. Analysis of a compilation of the «Word» has allowed the author to identify the strict sequence of citing biblical and patristic texts, and to identify the logic of argument advocated by Metropolitan Daniel. In this regard, the author attempts to refute the preconceived idea that the scribes Josephite schools were compilers, and destitute of original art. The author came to conclusion that existing in the national historiography technique of studying polemical writings of Russian medieval writers is in need of major changes.

  10. Using frequency response functions to manage image degradation from equipment vibration in the Daniel K. Inouye Solar Telescope

    Science.gov (United States)

    McBride, William R.; McBride, Daniel R.

    2016-08-01

    The Daniel K Inouye Solar Telescope (DKIST) will be the largest solar telescope in the world, providing a significant increase in the resolution of solar data available to the scientific community. Vibration mitigation is critical in long focal-length telescopes such as the Inouye Solar Telescope, especially when adaptive optics are employed to correct for atmospheric seeing. For this reason, a vibration error budget has been implemented. Initially, the FRFs for the various mounting points of ancillary equipment were estimated using the finite element analysis (FEA) of the telescope structures. FEA analysis is well documented and understood; the focus of this paper is on the methods involved in estimating a set of experimental (measured) transfer functions of the as-built telescope structure for the purpose of vibration management. Techniques to measure low-frequency single-input-single-output (SISO) frequency response functions (FRF) between vibration source locations and image motion on the focal plane are described. The measurement equipment includes an instrumented inertial-mass shaker capable of operation down to 4 Hz along with seismic accelerometers. The measurement of vibration at frequencies below 10 Hz with good signal-to-noise ratio (SNR) requires several noise reduction techniques including high-performance windows, noise-averaging, tracking filters, and spectral estimation. These signal-processing techniques are described in detail.

  11. Public Lecture | The long road to the LHC | Prof. Lyn Evans, Dr. Daniel Treille and Prof. Peter Jenni | 9 October

    CERN Document Server

    2014-01-01

    “The long road to the LHC” by Prof. Lyn Evans, Dr. Daniel Treille and Prof. Peter Jenni. Thursday 9 October, 7.30 p.m. in the Globe of Science and Innovation. Talk in English with simultaneous interpreting into French.  Entrance free. Limited number of seats. Reservation essential: +41 22 767 76 76 or cern.reception@cern.ch   Lyn Evans. Lecture by Lyn Evans Abstract The key to the discovery of the Higgs boson has been the development of particle accelerators at CERN over the years. I will explain how a particle accelerator works and will follow the path from the construction of the Proton Synchrotron in the 1950s to the world’s most powerful colliding beam machine, the Large Hadron Collider. Biography Born in 1945, Lyn Evans has spent his whole career in the field of high energy physics and particle accelerators, participating in all the great projects of CERN. From 1993 he led the team that designed, built and commissioned the LHC. He is currently ...

  12. On being a discontinuous person: Ontological insecurity, the wounded storyteller and time in Daniel Keyes’s Flowers for Algernon

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    Tony Ullyatt

    2015-07-01

    Full Text Available This article explores ontological security and insecurity in Daniel Keyes’s novel, Flowers for Algernon. It opens with a very brief overview of the 1960s counter-culture to contextualise not only Keyes’s novel but also Laing’s theories of ontological (insecurity. After a discussion of Laing’s concept of ontological security and insecurity, the focus shifts to Arthur W. Frank’s notions of the wounded storyteller and how Charlie Gordon’s entry into the medical world constitutes a colonisation of the body that brings with it a deepening sense of ontological insecurity. In entering the world of medical research, Charlie becomes the wounded storyteller, offering a first-person account of his experiences during the experiment and its aftermath. As the initial success of the surgery deteriorates steadily into failure, with the protagonist’s intelligence returning steadily to its pre-operation level, the question of time and how he can make the best use of it to record the experiment becomes paramount. The final section of the article centres on the growing link between the surgery’s failure and how it increases the protagonist’s ontological insecurity. He uses the diminishing amount of time available to him in search of understanding the fuller implications of the experiment. Eventually, he reverts to his initial rudimentary ontological security when he finds himself with the same intellectual level, as prior to the experiment.

  13. Reseña del libro de Daniel Kahneman: Pensar rápido, pensar despacio Thinking, Fast and Slow

    Directory of Open Access Journals (Sweden)

    Miguel Fernández Carrión

    2015-10-01

    Full Text Available Daniel Kahneman nace en Tel Aviv, se licencia en Psicología en la Uni­ versidad Hebrea de Jerusalén, tras servir cuatro años en el ejército israelí se doctora en 1961 en la Universidad de Ca­ lifornia en Berkeley. Desempeña la cátedra Eugene Higgins de Psicología de la Uni­ versidad de Princenton y asuntos públicos en la Escuela Woodrow Wilson de Asuntos Públicos e Internacionales. En 2002 obtie­ne el Premio Nobel de Economía, es por tanto el primer no economista a quien se le concede tal distinción, posteriormen­ te también lo es Amartya Sen, entre otros, por su trabajo interdisciplinar pionero de integración de la psicología en las ciencias económicas, especialmente sobre lo con­cerniente al juicio humano y la toma de decisiones en entornos económicos de in­ certidumbre.

  14. Effect of a 21 day Daniel Fast on metabolic and cardiovascular disease risk factors in men and women

    Directory of Open Access Journals (Sweden)

    Bloomer Richard J

    2010-09-01

    Full Text Available Abstract Background Dietary modification via caloric restriction is associated with multiple effects related to improved metabolic and cardiovascular health. However, a mandated reduction in kilocalories is not well-tolerated by many individuals, limiting the long-term application of such a plan. The Daniel Fast is a widely utilized fast based on the Biblical book of Daniel. It involves a 21 day ad libitum food intake period, devoid of animal products and preservatives, and inclusive of fruits, vegetables, whole grains, legumes, nuts, and seeds. The purpose of the present study was to determine the efficacy of the Daniel Fast to improve markers of metabolic and cardiovascular disease risk. Methods 43 subjects (13 men; 30 women; 35 ± 1 yrs; range: 20-62 yrs completed a 21 day period of modified food intake in accordance with detailed guidelines provided by investigators. All subjects purchased and prepared their own food. Following initial screening, subjects were given one week to prepare for the fast, after which time they reported to the lab for their pre-intervention assessment (day 1. After the 21 day fast, subjects reported to the lab for their post-intervention assessment (day 22. For both visits, subjects reported in a 12 hr fasted state, performing no strenuous physical activity during the preceding 24-48 hrs. At each visit, mental and physical health (SF-12 form, resting heart rate and blood pressure, and anthropometric variables were measured. Blood was collected for determination of complete blood count, metabolic panel, lipid panel, insulin, HOMA-IR, and C-reactive protein (CRP. Subjects' self-reported compliance, mood, and satiety in relation to the fast were also recorded. Diet records were maintained by all subjects during the 7 day period immediately prior to the fast (usual intake and during the final 7 days of the fast. Results Subjects' compliance to the fast was 98.7 ± 0.2% (mean ± SEM. Using a 10 point scale, subjects

  15. Lesmes, Daniel; Cabello, Gabriel; Massó Castilla, Jordi (Coords.: Georges Didi-Huberman. Imágenes, historia, pensamiento

    Directory of Open Access Journals (Sweden)

    Juan Jesús Torres

    2017-01-01

    Full Text Available Coordinado por Daniel Lesmes (Universidad Complutense de Madrid, Gabriel Cabello (Universidad de Granada y Jordi Massó Castilla (Universidad Complutense de Madrid, el número 246 de la revista Anthropos está íntegramente dedicado al pensamiento de Georges Didi-Huberman (Saint-Étienne, 1953, investigador de innegable trascendencia en el estudio sobre las imágenes y cuya recuperación del legado de Aby Warburg ha situado a la historia del arte ante un necesario replanteamiento de sus conceptos originarios, llevando, además, la reflexión sobre las imágenes a una nueva dimensión ética, emocional y gestual. Imágenes traidoras, en aquel sentido de Magritte, insostenibles sin la presencia de otros saberes diferentes y a priori dispares como la propia historia del arte, el psicoanálisis, la filosofía posestructuralista y la antropología. Desentrañar las relaciones que como seres culturales mantenemos con ellas ha sido el motivo del trabajo de Didi-Huberman, capaz de mostrar la importancia de esa dependencia revelando nuestra esgrima con el pasado y, de esta manera, nuestro trato con el presente, su legitimación y las posibilidades de transformación que este ofrece.

  16. La muerte de Daniel Alcides Carrión: una revisión crítica

    Directory of Open Access Journals (Sweden)

    David Salinas-Flores

    2009-06-01

    Full Text Available El experimento de Daniel Alcides Carrión marcó un hito en la historia de la medicina peruana. Alrededor de él ha existido mucha controversia. Quizás, el principal tema de debate sea la causa de su muerte. En la controversia, ha pasado desapercibido un hecho objetivo ocurrido en las últimas horas del experimento: la administración de inyecciones endovenosas de ácido fénico. Esta fue una terapia propuesta en Perú en aquella época como tratamiento del carbunco. Los médicos de la junta médica, en la agonía de Carrión, probablemente no administraron la transfusión sanguínea a Carrión, para experimentar con este tratamiento. La junta médica pensaba quizás repetir con la bartonelosis el éxito descrito que tuvieron las inyecciones de ácido fénico con el carbunco. Desconocían la actualmente demostrada toxicidad de esta sustancia. Probablemente, el evento precipitante de la muerte de Carrión fue una intoxicación por ácido fénico en un paciente con bartonelosis en fase anémica.

  17. La dramaturgia iconoclasta, cómica, conceptual y poética de Daniele Timpano. Entrevista al autor

    Directory of Open Access Journals (Sweden)

    Daniele Timpano

    2016-01-01

    Full Text Available En la producción del actor y dramaturgo Daniele Timpano (Roma, 1974 se encuentran algunos de los espectáculos más interesantes de las últimas décadas, con títulos como Dux in scatola. Autobiografia d'oltretomba di Mussolini Benito (2006, sobre los avatares del cadáver del Duce; Ecce Robot (2007, una curiosa obra, en parte "autobiografía generacional", empapada de la tradición del cómic asiático; o Sì l'ammore no (2009, escrito junto a Elvira Frosini, con la que también ha escrito su más reciente Zombitudine (2013. La presente entrevista propone recorrer algunas de las etapas más sobresalientes de su producción, al tiempo que plantear la pertinencia o no de algunas cuestiones que gravitan sobre su obra, como son la pertenencia o no a una teórica non-scuola romana, o el supuesto carácter anti-narrativo de sus espectáculos.

  18. La fortuna del ciclo de "Daniel en el foso de los leones" en los programas escultóricos románicos de Galicia

    Directory of Open Access Journals (Sweden)

    Moure Pena, Teresa C.

    2006-09-01

    Full Text Available This study is focused on the iconographic cycle of Daniel in the Lions Den within the sculptural programs of the Galician Romanesque. Analysis of the representations allows for the proposal of a series of theories concerning the connection between figuration and context, and particularly the value and signification acquired by the theme in the monastic milieu.

    El objetivo de este artículo se centra en el estudio del ciclo iconográfico de Daniel en el foso de los leones en los programas figurativos del románico gallego. El análisis de las representaciones nos permitirá proponer una serie de teorías sobre la conexión entre figuración y el contexto en el que se dispone y, especialmente el valor y significado que el tema adquiere en el ámbito monástico.

  19. Experiencias de resiliencia de estudiantes de undécimo año del colegio Daniel Oduber Quirós

    Directory of Open Access Journals (Sweden)

    Emilio Chinchilla Rodríguez

    2008-01-01

    Full Text Available En este artículo se reseña una investi-gación realizada en el 2006 sobre las experiencias de resiliencia de dos estudiantes de undécimo año del Colegio Daniel Oduber Quirós. Este se propone mostrar ejemplos de cómo las personas con circuns-tancias negativas en su vida pueden ser exitosas en el colegio.

  20. Dalla parola all'immagine. Le prediche figurate di Daniel Hopfer e il ruolo della grafica nella diffusione della dottrina evangelica

    OpenAIRE

    Butera, Valeria

    2016-01-01

    Lo studio si concentra su alcune acqueforti dell'artista di Augusta Daniel Hopfer (1471-1536) di soggetto religioso, che illustrano preghiere, proverbi, parabole e altri passi del Vangelo in forma narrativa e che risultano chiaramente influenzate dalle idee riformate. Dopo un approfondimento del contesto storico e culturale e delle opinioni dei maggiori riformatori in merito alla questione delle immagini, le originali opere di Hopfer sono state messe a confronto con gli scritti omiletici e ca...

  1. “La transmutación de culturas”. Entrevista a Daniel Alarcón, ganador del Premio Internacional de Literatura de la Casa de las Culturas del Mundo

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2014-06-01

    Full Text Available El profesor Ette entrevista al novelista y cuentista Daniel Alarcón, peruano-estadounidense, editor asociado de la revista peruana Etiqueta Negra y actualmente escritor visitante del Mills College en Oakland, California.

  2. Romanian Minister of Education, Research, Youth and Sport, Daniel Petru Funeriu, and CERN Director General, Rolf Heuer, signed an agreement that formally recognises Romania as a Candidate for Accession to membership of CERN.

    CERN Multimedia

    Maximilien Brice

    2010-01-01

    Romanian Minister of Education, Research, Youth and Sport, Daniel Petru Funeriu, and CERN Director General, Rolf Heuer, signed an agreement that formally recognises Romania as a Candidate for Accession to membership of CERN.

  3. [Epidemiological changes in peptic ulcer and their relation with Helicobacter pylori. Hospital Daniel A Carrion 2000-2005].

    Science.gov (United States)

    Montes Teves, Pedro; Salazar Ventura, Sonia; Monge Salgado, Eduardo

    2007-01-01

    Peptic ulcer disease is a frequent pathological condition. In the last few years there have been reports describing changes in its epidemiology and its association with Helicobacter pylori infection. To describe epidemiological characteristics of peptic ulcers during the study period from January 2000 through December 2005 in Hospital Daniel Carrion. Cross sectional analitical study. All patients with an endoscopic diagnosis of peptic ulcer were included. Patients with gastric cancer or previous surgery were excluded. Data were processed using the SPSS 9.0 software. We reviewed 10,819 endoscopy reports with 899 peptic ulcer cases diagnosed during the study period. 67.8% were male, age average 54 years. Age was higher in females (59.8 y), as was in those with gastric and pyloric ulcers (68.7 y). Most frequent endoscopic indications were upper gastrointestinal bleeding (53.3%) and dyspepsia (43.8%). Duodenal location was the most frequent (49.5%) although in recent years gastric ulcers have become more prevalent. Gastric ulcers were more commonly located in the antrum lesser curvature, while duodenal ulcers were located in the anterior wall of the duodenal bulb. Gastric ulcers were larger in size and more in number than duodenal ones. Helicobacter pylori was present in 65.3% of all ulcers, 74.3% for duodenal and 55.4% for gastric ulcers. Prevalence of peptic ulcers during the study period was 83.09 cases per 1,000 endoscopies. Duodenal ulcers were the most frequent although there is a decline in the last years. There is also a decrease in the frequency of Helicobacter pylori infection as compared to what is usually described.

  4. Effect of a 21 day Daniel Fast on metabolic and cardiovascular disease risk factors in men and women.

    Science.gov (United States)

    Bloomer, Richard J; Kabir, Mohammad M; Canale, Robert E; Trepanowski, John F; Marshall, Kate E; Farney, Tyler M; Hammond, Kelley G

    2010-09-03

    Dietary modification via caloric restriction is associated with multiple effects related to improved metabolic and cardiovascular health. However, a mandated reduction in kilocalories is not well-tolerated by many individuals, limiting the long-term application of such a plan. The Daniel Fast is a widely utilized fast based on the Biblical book of Daniel. It involves a 21 day ad libitum food intake period, devoid of animal products and preservatives, and inclusive of fruits, vegetables, whole grains, legumes, nuts, and seeds. The purpose of the present study was to determine the efficacy of the Daniel Fast to improve markers of metabolic and cardiovascular disease risk. 43 subjects (13 men; 30 women; 35 ± 1 yrs; range: 20-62 yrs) completed a 21 day period of modified food intake in accordance with detailed guidelines provided by investigators. All subjects purchased and prepared their own food. Following initial screening, subjects were given one week to prepare for the fast, after which time they reported to the lab for their pre-intervention assessment (day 1). After the 21 day fast, subjects reported to the lab for their post-intervention assessment (day 22). For both visits, subjects reported in a 12 hr fasted state, performing no strenuous physical activity during the preceding 24-48 hrs. At each visit, mental and physical health (SF-12 form), resting heart rate and blood pressure, and anthropometric variables were measured. Blood was collected for determination of complete blood count, metabolic panel, lipid panel, insulin, HOMA-IR, and C-reactive protein (CRP). Subjects' self-reported compliance, mood, and satiety in relation to the fast were also recorded. Diet records were maintained by all subjects during the 7 day period immediately prior to the fast (usual intake) and during the final 7 days of the fast. Subjects' compliance to the fast was 98.7 ± 0.2% (mean ± SEM). Using a 10 point scale, subjects' mood and satiety were both 7.9 ± 0.2. The

  5. Effect of a 21 day Daniel Fast on metabolic and cardiovascular disease risk factors in men and women

    Science.gov (United States)

    2010-01-01

    Background Dietary modification via caloric restriction is associated with multiple effects related to improved metabolic and cardiovascular health. However, a mandated reduction in kilocalories is not well-tolerated by many individuals, limiting the long-term application of such a plan. The Daniel Fast is a widely utilized fast based on the Biblical book of Daniel. It involves a 21 day ad libitum food intake period, devoid of animal products and preservatives, and inclusive of fruits, vegetables, whole grains, legumes, nuts, and seeds. The purpose of the present study was to determine the efficacy of the Daniel Fast to improve markers of metabolic and cardiovascular disease risk. Methods 43 subjects (13 men; 30 women; 35 ± 1 yrs; range: 20-62 yrs) completed a 21 day period of modified food intake in accordance with detailed guidelines provided by investigators. All subjects purchased and prepared their own food. Following initial screening, subjects were given one week to prepare for the fast, after which time they reported to the lab for their pre-intervention assessment (day 1). After the 21 day fast, subjects reported to the lab for their post-intervention assessment (day 22). For both visits, subjects reported in a 12 hr fasted state, performing no strenuous physical activity during the preceding 24-48 hrs. At each visit, mental and physical health (SF-12 form), resting heart rate and blood pressure, and anthropometric variables were measured. Blood was collected for determination of complete blood count, metabolic panel, lipid panel, insulin, HOMA-IR, and C-reactive protein (CRP). Subjects' self-reported compliance, mood, and satiety in relation to the fast were also recorded. Diet records were maintained by all subjects during the 7 day period immediately prior to the fast (usual intake) and during the final 7 days of the fast. Results Subjects' compliance to the fast was 98.7 ± 0.2% (mean ± SEM). Using a 10 point scale, subjects' mood and satiety were

  6. DANIEL S. UGWU

    African Journals Online (AJOL)

    A study of crop production in the compound farming system of Southeastern Nigeria was carried out. The objectives of the study .... the compound to the central or local market is 1.6km. Arable and Tree Crops in the .... Effective Extension Network: The results of agricultural research involving fertilizer recommendation and ...

  7. Daniel Inman | NREL

    Science.gov (United States)

    . Bush, D. Inman, and R. Elmore. 2015. Evaluation of Methods for Comparison of Spatiotemporal and Time Series Datasets. Golden, CO: National Renewable Energy Laboratory. NREL/TP-6A20-62647. Vimmerstedt, L.J Elmore, and Brian Bush. "Case Study to Examine the Imputation of Missing Data to Improve Clustering

  8. Daniel Laird | NREL

    Science.gov (United States)

    the high-fidelity modeling, wind plant controls, and rotor dynamics focus areas. Prior to joining NREL , composite materials, and blade reliability. Education M.S. and Ph.D. in Mechanical Engineering, University

  9. Daniel Carpenter | NREL

    Science.gov (United States)

    Vapors," Green Chemistry (2014) "Field-to-Fuel Performance Testing of Lignocellulosic Demonstration Experiments," Industrial & Engineering Chemistry Research (2014) "Pilot-Scale Literature," Industrial & Engineering Chemistry Research (2010) "Demonstration and

  10. Monte Carlo Simulation of an American Option

    Directory of Open Access Journals (Sweden)

    Gikiri Thuo

    2007-04-01

    Full Text Available We implement gradient estimation techniques for sensitivity analysis of option pricing which can be efficiently employed in Monte Carlo simulation. Using these techniques we can simultaneously obtain an estimate of the option value together with the estimates of sensitivities of the option value to various parameters of the model. After deriving the gradient estimates we incorporate them in an iterative stochastic approximation algorithm for pricing an option with early exercise features. We illustrate the procedure using an example of an American call option with a single dividend that is analytically tractable. In particular we incorporate estimates for the gradient with respect to the early exercise threshold level.

  11. DANIEL MERRO JOHNSTON: EL AUTOR Y EL INTÉRPRETE. LE CORBUSIER Y AMANCIO WILLIAMS EN LA CASA CURUTCHET

    Directory of Open Access Journals (Sweden)

    Jorge Torres Cueco

    2011-11-01

    Full Text Available No hace mucho tiempo pudimos ver en la pantalla la película El hombre de al lado (Argentina, 2009 filmada en la Casa del Doctor Pedro Curutchet en Buenos Aires. También era su principal protagonista, pues el argumento gira alrededor de su inmarcesible presencia. La cámara de Mariano Cohn y Gastón Duprat nos muestran una sugestiva narración de la promenade architectural, sus atractivos espacios interiores, los juegos de luces y sombras otorgados por su brise-soleil y, también, su fragilidad ante las actuaciones poco respetuosas. Algunas imágenes nos recuerdan las tomas que Pierre Chenal hizo en Architecture d’Aujourd’hui (1930 con la colaboración del propio Le Corbusier, en esa escenificación de la promenade, entonces, por la villa Savoye. A este respecto Tim Benton insistía en la importancia del significado asociado a este deambular. La villa Stein mostraba diversas clases de naturaleza, en la villa Savoye el dominio de la arquitectura contra un medio antagonista, la naturaleza, que se hace presente desde el hueco con que finaliza el recorrido por la rampa. En la casa Curutchet nos encontramos un árbol ante el que se producen todos los desplazamientos: es una porción de naturaleza encerrada en un patio. Es casi una homotecia en relación con el parque ante el que se sitúa la casa y la metrópolis de Buenos Aires. Quizás haya también una reflexión entre el habitar y el trabajar en la gran ciudad, tan presente en el pensamiento de Le Corbusier. Estos son interpretaciones que no constituyen verdad alguna, sino asociaciones de ideas que no tienen más validez que retazos de memoria y que, en modo alguno, tratan de suplantar la realidad que se encuentra en la misma obra de arquitectura. Muy distinto es el objetivo de Daniel Merro. No nos ofrece una interpretación sobre esta obra, sino que nos relata cómo es interpretada una misma partitura cuyo pentagrama se tiende a lo largo de una rampa.

  12. Vibration measurements of the Daniel K. Inouye Solar Telescope mount, Coudé rotator, and enclosure assemblies

    Science.gov (United States)

    McBride, William R.; McBride, Daniel R.

    2016-08-01

    The Daniel K. Inouye Solar Telescope (DKIST) will be the largest solar telescope in the world, with a 4-meter off-axis primary mirror and 16 meter rotating Coudé laboratory within the telescope pier. The off-axis design requires a mount similar to an 8-meter on-axis telescope. Both the telescope mount and the Coudé laboratory utilize a roller bearing technology in place of the more commonly used hydrostatic bearings. The telescope enclosure utilizes a crawler mechanism for the altitude axis. As these mechanisms have not previously been used in a telescope, understanding the vibration characteristics and the potential impact on the telescope image is important. This paper presents the methodology used to perform jitter measurements of the enclosure and the mount bearings and servo system in a high-noise environment utilizing seismic accelerometers and high dynamic-range data acquisition equipment, along with digital signal processing (DSP) techniques. Data acquisition and signal processing were implemented in MATLAB. In the factory acceptance testing of the telescope mount, multiple accelerometers were strategically located to capture the six axes-of-motion of the primary and secondary mirror dummies. The optical sensitivity analysis was used to map these mirror mount displacements and rotations into units of image motion on the focal plane. Similarly, tests were done with the Coudé rotator, treating the entire rotating instrument lab as a rigid body. Testing was performed by recording accelerometer data while the telescope control system performed tracking operations typical of various observing scenarios. The analysis of the accelerometer data utilized noise-averaging fast Fourier transform (FFT) routines, spectrograms, and periodograms. To achieve adequate dynamic range at frequencies as low as 3Hz, the use of special filters and advanced windowing functions were necessary. Numerous identical automated tests were compared to identify and select the data sets

  13. A 21-day Daniel fast with or without krill oil supplementation improves anthropometric parameters and the cardiometabolic profile in men and women.

    Science.gov (United States)

    Trepanowski, John F; Kabir, Mohammad M; Alleman, Rick J; Bloomer, Richard J

    2012-09-13

    The Daniel Fast is a vegan diet that prohibits the consumption of animal products, refined foods, white flour, preservatives, additives, sweeteners, flavorings, caffeine, and alcohol. Following this dietary plan for 21 days has been demonstrated to improve blood pressure, LDL-C, and certain markers of oxidative stress, but it has also been shown to lower HDL-C. Krill oil supplementation has been shown to increase HDL-C. We investigated the effects of following a Daniel Fast dietary plan with either krill oil supplementation (2 g/day) or placebo supplementation (coconut oil; 2 g/day) for 21 days. The subjects in this study (12 men and 27 women) were heterogeneous with respect to body mass index (BMI) (normal weight, overweight, and obese), blood lipids (normolipidemic and hyperlipidemic), blood glucose (normal fasting glucose, impaired fasting glucose, and type 2 diabetic), and blood pressure (normotensive and hypertensive). Krill oil supplementation had no effect on any outcome measure (all p > 0.05), and so the data from the krill oil group and the placebo group were collapsed and analyzed to examine the effects of following a 21-day Daniel Fast. Significant reductions were observed in LDL-C (100.6 ± 4.3 mg/dL vs. 80.0 ± 3.7 mg/dL), the LDL:HDL ratio (2.0 ± 0.1 vs. 1.7 ± 0.1), fasting blood glucose (101.4 ± 7.5 mg/dL vs. 91.7 ± 3.4 mg/dL), fasting blood insulin (7.92 ± 0.80 μU/mL vs. 5.76 ± 0.59 μU/mL), homeostasis model assessment of insulin resistance (HOMA-IR) (2.06 ± 0.30 vs. 1.40 ± 0.21), systolic BP (110.7 ± 2.2 mm Hg vs. 105.5 ± 1.7 mm Hg), and body weight (74.1 ± 2.4 kg vs. 71.5 ± 2.3 kg) (all p < 0.05). Following a Daniel Fast dietary plan improves a variety of cardiometabolic parameters in a wide range of individuals in as little as 21 days, and these improvements are unaffected by krill oil supplementation. Clinicaltrial.govNCT01378767.

  14. Thermal and flow analysis of the Fluor Daniel, Inc., Nuclear Material Storage Facility renovation design (initial 30% effort of Title 1)

    International Nuclear Information System (INIS)

    Steinke, R.G.; Mueller, C.; Knight, T.D.

    1998-03-01

    The computational fluid dynamics code CFX4.2 was used to evaluate steady-state thermal-hydraulic conditions in the Fluor Daniel, Inc., Nuclear Material Storage Facility renovation design (initial 30% of Title 1). Thirteen facility cases were evaluated with varying temperature dependence, drywell-array heat-source magnitude and distribution, location of the inlet tower, and no-flow curtains in the drywell-array vault. Four cases of a detailed model of the inlet-tower top fixture were evaluated to show the effect of the canopy-cruciform fixture design on the air pressure and flow distributions

  15. Between a rock and a slippery slope: negotiating the intersections of religion and sexuality on network television's The Book of Daniel.

    Science.gov (United States)

    Hilton-Morrow, Wendy; Battles, Kathleen

    2011-01-01

    This article analyzes the television series The Book of Daniel, a program that shows in full relief the ways that current discourses of religion and sexuality converge to produce a particular type of gay subject. This subject, primarily male, might be understood as bound through an innate identity and commitment to the sanctity and reproduction of heteronormative institutions such as the church and state, which renders him assimilable into the social order. As homosexuality, per se, is no longer "outside" the normative order, the program constructs an unstable, nonbinary, and nonheteronormative other who is best understood as queer.

  16. A tractable algorithm for the wellfounded model

    NARCIS (Netherlands)

    Jonker, C.M.; Renardel de Lavalette, G.R.

    In the area of general logic programming (negated atoms allowed in the bodies of rules) and reason maintenance systems, the wellfounded model (first defined by Van Gelder, Ross and Schlipf in 1988) is generally considered to be the declarative semantics of the program. In this paper we present

  17. Tractable dynamic global games and applications

    Czech Academy of Sciences Publication Activity Database

    Mathevet, L.; Steiner, Jakub

    2013-01-01

    Roč. 148, č. 6 (2013), s. 2583-2619 ISSN 0022-0531 R&D Projects: GA ČR(CZ) GA13-34759S Grant - others:UK(CZ) UNCE 204005/2012 Institutional support: PRVOUK-P23 Keywords : global games * dynamic game * coordination Subject RIV: AH - Economics Impact factor: 0.919, year: 2013

  18. Tractable dynamic global games and applications

    Czech Academy of Sciences Publication Activity Database

    Mathevet, L.; Steiner, Jakub

    2013-01-01

    Roč. 148, č. 6 (2013), s. 2583-2619 ISSN 0022-0531 Institutional support: RVO:67985998 Keywords : global games * dynamic game * coordination Subject RIV: AH - Economics Impact factor: 0.919, year: 2013

  19. LA DIMENSIÓN EDUCATIVA DE LOS NIÑOS DE FAMILIAS BOLIVIANAS DE LA LOCALIDAD DE GENERAL DANIEL CERRI

    Directory of Open Access Journals (Sweden)

    María Kraser

    2008-12-01

    Full Text Available La localidad de General Daniel Cerri situada a 15km de la ciudad de Bahía Blanca ha sido un espacio receptor de oleadas migratorias, europeas en primera instancia y latinoamericanas posteriormente las cuales han configurado las características culturales de ese espacio geográfico plasmando en él, con el paso del tiempo, sus prácticas y costumbres. El grupo que actúa como organizador del sector en sus comienzos proveniente de Europa llevaron adelante el proceso de colonización del territorio. Al ser los fundadores de la localidad actuaron como los organizadores y configuradores de la vida en el poblado desde fines del siglo XIX hasta la década del ́60 de la pasada centuria. A partir de ese momento el desplazamiento migratorio prioriza a pobladores limítrofes. Esta situación no se distancia de la realidad territorial nacional ya que nuestro país se ha forjado a lo largo de su historia con distintos arribos de migrantes. El estudio de los desplazamientos migratorios constituye un tema de interés en el marco del sistema de globalización económica que estamos viviendo ya que el mismo arrastra un proceso de globalización de la cultura y de las prácticas sociales con la consiguiente resignificación de conceptos y valores. La mayoría de estos movimientos obedece a la búsqueda de mejores oportunidades y condiciones de vida, situación que resulta de la combinación e interacción de diversos factores estructurales en su gran mayoría asentados en el problema económico. Varios autores coinciden en señalar que si bien el salario es el factor más significativo, el mismo se inscribe en una actitud no concreta y efectiva al momento de emigrar, sino anhelada. Aquí la decisión de desplazamiento de un espacio hacia otro, está inserta en un deseo esperado de obtener un salario mejor. A esta causal de traslado debemos agregarle situaciones preferenciales en cuanto a servicios de salud y educación que algunos países ofrecen en relaci

  20. A 40-Day Journey to Better Health: Utilizing the DanielFast to Improve Health Outcomes in Urban Church-Based Settings

    Directory of Open Access Journals (Sweden)

    Nicole A. Vaughn

    2018-03-01

    Full Text Available Background: As the costs associated with obesity increase, it is vital to evaluate the effectiveness of chronic disease prevention among underserved groups, particularly in urban settings. This research study evaluated Philadelphia area Keystone First members and church participants enrolled in a group health education program to determine the impact of the Daniel Fast on physical health and the adoption of healthy behaviors. Methods: Participants attended six-weekly health education sessions in two participating churches, and were provided with a digital healthy eating platform. Results: There was a statistically significant decrease from baseline to post assessment for weight, waist circumference and cholesterol. Participants reported a significant improvement in their overall well-being, social and physical functioning, vitality and mental health. Conclusion: Results of this study demonstrate that dietary recommendations and comprehensive group health education delivered in churches and reinforced on a digital platform can improve physical health, knowledge and psychosocial outcomes.

  1. A 21-day Daniel fast with or without krill oil supplementation improves anthropometric parameters and the cardiometabolic profile in men and women

    Directory of Open Access Journals (Sweden)

    Trepanowski John F

    2012-09-01

    Full Text Available Abstract Background The Daniel Fast is a vegan diet that prohibits the consumption of animal products, refined foods, white flour, preservatives, additives, sweeteners, flavorings, caffeine, and alcohol. Following this dietary plan for 21 days has been demonstrated to improve blood pressure, LDL-C, and certain markers of oxidative stress, but it has also been shown to lower HDL-C. Krill oil supplementation has been shown to increase HDL-C. Methods We investigated the effects of following a Daniel Fast dietary plan with either krill oil supplementation (2 g/day or placebo supplementation (coconut oil; 2 g/day for 21 days. The subjects in this study (12 men and 27 women were heterogeneous with respect to body mass index (BMI (normal weight, overweight, and obese, blood lipids (normolipidemic and hyperlipidemic, blood glucose (normal fasting glucose, impaired fasting glucose, and type 2 diabetic, and blood pressure (normotensive and hypertensive. Results Krill oil supplementation had no effect on any outcome measure (all p > 0.05, and so the data from the krill oil group and the placebo group were collapsed and analyzed to examine the effects of following a 21-day Daniel Fast. Significant reductions were observed in LDL-C (100.6 ± 4.3 mg/dL vs. 80.0 ± 3.7 mg/dL, the LDL:HDL ratio (2.0 ± 0.1 vs. 1.7 ± 0.1, fasting blood glucose (101.4 ± 7.5 mg/dL vs. 91.7 ± 3.4 mg/dL, fasting blood insulin (7.92 ± 0.80 μU/mL vs. 5.76 ± 0.59 μU/mL, homeostasis model assessment of insulin resistance (HOMA-IR (2.06 ± 0.30 vs. 1.40 ± 0.21, systolic BP (110.7 ± 2.2 mm Hg vs. 105.5 ± 1.7 mm Hg, and body weight (74.1 ± 2.4 kg vs. 71.5 ± 2.3 kg (all p  Conclusion Following a Daniel Fast dietary plan improves a variety of cardiometabolic parameters in a wide range of individuals in as little as 21 days, and these improvements are unaffected by krill oil supplementation. Trial registration

  2. Heurísticas no estudo das decisões econômicas: contribuições de Herbert Simon, Daniel Kahneman e Amos Tversky

    Directory of Open Access Journals (Sweden)

    Adriana Sbicca

    2014-09-01

    Full Text Available Herbert Simon apresenta uma vasta produção acadêmica na qual propôs uma teoria da decisão econômica em torno do conceito de racionalidade limitada. O reconhecimento do meio complexo e dos limites cognitivos levaram-no a sustentar o frequente uso de heurísticas pelo ser humano. Novas abordagens têm sido desenvolvidas ao redor dessa ideia. Mais recentemente, Daniel Kahneman e Amos Tversky analizaram a relação entre heurísticas e vieses de comportamento e esta proposta tem ganhado espaço no mundo acadêmico. Este texto discute as contribuições de Simon, Kahneman e Tversky, e propõe a existência de complementaridade entre as mesmas, promissora para o desenvolvimento de uma teoria da decisão do agente econômico.

  3. Le néoconservatisme de Daniel Patrick Moynihan : le cas de la politique étrangère

    Directory of Open Access Journals (Sweden)

    Justin Vaïsse

    2010-09-01

    Full Text Available Daniel Patrick Moynihan est une figure archétypale du premier âge du néoconservatisme : jeune membre de l’ADA (American for Democratic Action dès les origines, il s’oppose aux tendances pro-communistes (ou du moins de « compagnonnage de route»  de Henry Wallace en 1948, et soutient avec enthousiasme le libéralisme du « centre vital », mélange de progrès social, de keynésianisme et d’anticommunisme. Dans les années 1950, il écrit ses premiers articles dans The Reporter, encouragé par Irving ...

  4. If You're a Rawlsian, How Come You're So Close to Utilitarianism and Intuitionism? A Critique of Daniels's Accountability for Reasonableness.

    Science.gov (United States)

    Badano, Gabriele

    2018-03-01

    Norman Daniels's theory of 'accountability for reasonableness' is an influential conception of fairness in healthcare resource allocation. Although it is widely thought that this theory provides a consistent extension of John Rawls's general conception of justice, this paper shows that accountability for reasonableness has important points of contact with both utilitarianism and intuitionism, the main targets of Rawls's argument. My aim is to demonstrate that its overlap with utilitarianism and intuitionism leaves accountability for reasonableness open to damaging critiques. The important role that utilitarian-like cost-effectiveness calculations are allowed to play in resource allocation processes disregards the separateness of persons and is seriously unfair towards individuals whose interests are sacrificed for the sake of groups. Furthermore, the function played by intuitions in settling frequent value conflicts opens the door for sheer custom and vested interests to steer decision-making.

  5. Jean-Pierre Abbet & Daniel Stoecklin, « We were talking… » Les Beatles en héritage

    OpenAIRE

    Nikoghosyan, Nuné

    2012-01-01

    Voici un ouvrage autour des Beatles qui n’est pas une biographie, ni une étude sociologique, mais une collection d’essais par deux sociologues. Dans « We were talking » Les Beatles en héritage, Jean-Pierre Abbet et Daniel Stoecklin prennent un style discursif libre et, ne visant pas une neutralité scientifique, proposent leurs points de vue personnels sur des thèmes divers autour des Beatles. Les thèmes varient de l’œuvre des Beatles à la « Beatlemania » comme phénomène social, en passant par...

  6. The Ethics of Biomedical Big Data : Brent Daniel Mittelstadt and Luciano Floridi, eds. 2016, Springer International Publishing (Cham, Switzerland, 978-3-319-33523-0, 480 pp.).

    Science.gov (United States)

    Mason, Paul H

    2017-12-01

    The availability of diverse sources of data related to health and illness from various types of modern communication technology presents the possibility of augmenting medical knowledge, clinical care, and the patient experience. New forms of data collection and analysis will undoubtedly transform epidemiology, public health, and clinical practice, but what ethical considerations come in to play? With a view to analysing the ethical and regulatory dimensions of burgeoning forms of biomedical big data, Brent Daniel Mittelstadt and Luciano Floridi have brought together thirty scholars in an edited volume that forms part of Springer's Law, Governance and Technology book series in a collection titled The Ethics of Biomedical Big Data. With eighteen chapters partitioned into six carefully devised sections, this volume engages with core theoretical, ethical, and regulatory challenges posed by biomedical big data.

  7. Simple stochastic simulation.

    Science.gov (United States)

    Schilstra, Maria J; Martin, Stephen R

    2009-01-01

    Stochastic simulations may be used to describe changes with time of a reaction system in a way that explicitly accounts for the fact that molecules show a significant degree of randomness in their dynamic behavior. The stochastic approach is almost invariably used when small numbers of molecules or molecular assemblies are involved because this randomness leads to significant deviations from the predictions of the conventional deterministic (or continuous) approach to the simulation of biochemical kinetics. Advances in computational methods over the three decades that have elapsed since the publication of Daniel Gillespie's seminal paper in 1977 (J. Phys. Chem. 81, 2340-2361) have allowed researchers to produce highly sophisticated models of complex biological systems. However, these models are frequently highly specific for the particular application and their description often involves mathematical treatments inaccessible to the nonspecialist. For anyone completely new to the field to apply such techniques in their own work might seem at first sight to be a rather intimidating prospect. However, the fundamental principles underlying the approach are in essence rather simple, and the aim of this article is to provide an entry point to the field for a newcomer. It focuses mainly on these general principles, both kinetic and computational, which tend to be not particularly well covered in specialist literature, and shows that interesting information may even be obtained using very simple operations in a conventional spreadsheet.

  8. Die Wahrnehmung der Figur „Adolf Hitler“ in Daniel Levys „Mein Führer- die wirklich wahrste Wahrheit über Adolf Hitler“ durch internationales Filmpublikum.

    OpenAIRE

    Herzner, Dominik

    2017-01-01

    Filme beeinflussen die Wahrnehmungen von Figuren. Daniel Levys Film "Mein Führer" (die erste deutschsprachige Komödie über Adolf Hitler) führte zu einer positiven Wahrnehmung der Hauptfigur. In einer empirischen Untersuchung wurde gezeigt, dass sich dieser Effekt bei internationalem Filmpublikum, die einen anderen Zugang zur Thematik Nationalsozialismus haben, verstärkt.

  9. Daniel Slutzky. Estructura social agraria y agroindustrial del Nordeste de la Argentina: desde la incorporación a la economía nacional al actual subdesarrollo concentrador y excluyente

    Directory of Open Access Journals (Sweden)

    Pedro Roberto Castillo

    2017-05-01

    Full Text Available Reseña del libro Estructura social agraria y agroindustrial del Nordeste de la Argentina: desde la incorporación a la economía nacional al actual subdesarrollo concentrador y excluyente de Daniel Slutzky.

  10. Time Domain Partitioning of Electricity Production Cost Simulations

    Energy Technology Data Exchange (ETDEWEB)

    Barrows, C. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Hummon, M. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Jones, W. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Hale, E. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2014-01-01

    Production cost models are often used for planning by simulating power system operations over long time horizons. The simulation of a day-ahead energy market can take several weeks to compute. Tractability improvements are often made through model simplifications, such as: reductions in transmission modeling detail, relaxation of commitment variable integrality, reductions in cost modeling detail, etc. One common simplification is to partition the simulation horizon so that weekly or monthly horizons can be simulated in parallel. However, horizon partitions are often executed with overlap periods of arbitrary and sometimes zero length. We calculate the time domain persistence of historical unit commitment decisions to inform time domain partitioning of production cost models. The results are implemented using PLEXOS production cost modeling software in an HPC environment to improve the computation time of simulations while maintaining solution integrity.

  11. Fusion Simulation Program

    International Nuclear Information System (INIS)

    Greenwald, Martin

    2011-01-01

    Many others in the fusion energy and advanced scientific computing communities participated in the development of this plan. The core planning team is grateful for their important contributions. This summary is meant as a quick overview the Fusion Simulation Program's (FSP's) purpose and intentions. There are several additional documents referenced within this one and all are supplemental or flow down from this Program Plan. The overall science goal of the DOE Office of Fusion Energy Sciences (FES) Fusion Simulation Program (FSP) is to develop predictive simulation capability for magnetically confined fusion plasmas at an unprecedented level of integration and fidelity. This will directly support and enable effective U.S. participation in International Thermonuclear Experimental Reactor (ITER) research and the overall mission of delivering practical fusion energy. The FSP will address a rich set of scientific issues together with experimental programs, producing validated integrated physics results. This is very well aligned with the mission of the ITER Organization to coordinate with its members the integrated modeling and control of fusion plasmas, including benchmarking and validation activities. (1). Initial FSP research will focus on two critical Integrated Science Application (ISA) areas: ISA1, the plasma edge; and ISA2, whole device modeling (WDM) including disruption avoidance. The first of these problems involves the narrow plasma boundary layer and its complex interactions with the plasma core and the surrounding material wall. The second requires development of a computationally tractable, but comprehensive model that describes all equilibrium and dynamic processes at a sufficient level of detail to provide useful prediction of the temporal evolution of fusion plasma experiments. The initial driver for the whole device model will be prediction and avoidance of discharge-terminating disruptions, especially at high performance, which are a critical

  12. Plasma Simulation Program

    Energy Technology Data Exchange (ETDEWEB)

    Greenwald, Martin

    2011-10-04

    Many others in the fusion energy and advanced scientific computing communities participated in the development of this plan. The core planning team is grateful for their important contributions. This summary is meant as a quick overview the Fusion Simulation Program's (FSP's) purpose and intentions. There are several additional documents referenced within this one and all are supplemental or flow down from this Program Plan. The overall science goal of the DOE Office of Fusion Energy Sciences (FES) Fusion Simulation Program (FSP) is to develop predictive simulation capability for magnetically confined fusion plasmas at an unprecedented level of integration and fidelity. This will directly support and enable effective U.S. participation in International Thermonuclear Experimental Reactor (ITER) research and the overall mission of delivering practical fusion energy. The FSP will address a rich set of scientific issues together with experimental programs, producing validated integrated physics results. This is very well aligned with the mission of the ITER Organization to coordinate with its members the integrated modeling and control of fusion plasmas, including benchmarking and validation activities. [1]. Initial FSP research will focus on two critical Integrated Science Application (ISA) areas: ISA1, the plasma edge; and ISA2, whole device modeling (WDM) including disruption avoidance. The first of these problems involves the narrow plasma boundary layer and its complex interactions with the plasma core and the surrounding material wall. The second requires development of a computationally tractable, but comprehensive model that describes all equilibrium and dynamic processes at a sufficient level of detail to provide useful prediction of the temporal evolution of fusion plasma experiments. The initial driver for the whole device model will be prediction and avoidance of discharge-terminating disruptions, especially at high performance, which are a

  13. De cómicos e histéricos. Una réplica a la sátira sobre eruditos de Daniel Kehlmann

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2012-12-01

    Full Text Available Zusammenfassung Wie stark sich im Verlauf des zurückliegenden Vierteljahrhunderts der Bekanntheitsgrad Alexander von Humboldts in der deutschsprachigen Öffentlichkeit verändert hat, zeigen nicht nur Fernsehumfragen zu den berühmtesten Deutschen, in denen Alexander von Humboldt mittlerweile figuriert, oder Fernsehserien, die über aktuelle Expeditionen berichten und auf Humboldts Namen zurückgreifen. Am deutlichsten vielleicht belegt dies der enorme Erfolg von Daniel Kehlmanns Roman Die Vermessung der Welt, der ohne die zuvor skizzierte Entwicklung nicht denkbar gewesen wäre. Es ist vor diesem Hintergrund nicht nur reizvoll, sondern aufschlußreich, sich mit dem großen Erfolg dieses kleinen Romans zu beschäftigen. Worum geht es in Die Vermessung der Welt? Und wie läßt sich das „Phänomen Kehlmann“ aus etwas größerer Distanz erklären? Abstract In the last 25 years, Alexander von Humboldt‘s popularity has radically changed in the german-speaking public opinion. Proof of this are not only television surveys about the most famous germans - in which Alexander von Humboldt now regularly figures - or television series about contemporary expeditions, which constantly refer to Humboldt‘s name; perhaps what most clearly verifies this change is the great success of Daniel Kehlmann‘s novel Die Vermessung der Welt. Without the recent developments outlined above, this novel‘s degree of impact would have been unimaginable. To study the great success of this text against this backdrop is not only attractive, but also revealing. What is Die Vermessung der Welt really about? And how can we explain the „Kehlmann phenomenon“ from a greater distance? Resumen La popularidad de Alejandro de Humboldt ha cambiado profundamente dentro del último cuarto de siglo en la opinión pública de habla alemana. Prueba de esto son no sólo las encuestas televisivas sobre los alemanes más famosos, dentro de las cuales figura en estos momentos Alejandro

  14. Value of Information by updating model uncertainties utilising proof loading in the context of series and Daniels systems

    DEFF Research Database (Denmark)

    Brüske, Henning; Thöns, Sebastian

    2016-01-01

    In this paper, an approach is presented for the determination of the Value of Information (VoI) in relation to models which can represent structural systems such as e.g. towers, cables, jackets. Stochastic capacities and loads are assumed for the models studied herein. The VoI is obtained......, the expected life-cycle benefit of the considered systems are computed. The difference in the expected benefits relating to the prior and pre-posterior decision analysis leads to the VoI. The system models are probabilistically computed using the Monte Carlo / Importance sampling simulations to estimate...... with a prior and a pre-posterior decision analysis. The prior decision analysis takes basis in the design phase of the structural system. Pre-posterior decision analysis builds upon modelling results of not yet conducted experiments. In order to perform the prior and pre-posterior Bayesian decision analysis...

  15. Daniel Gallegos y el círculo de la violencia: propuesta para el abordaje del género dramático en el aula

    Directory of Open Access Journals (Sweden)

    Nuria Méndez-Garita

    2011-08-01

    Full Text Available La literatura ofrece a los diferentes lectores posibilidades infinitas de significados. Permite reconstruir historias y mundos; proyectarse e imaginarse en diferentes representaciones: permite distanciarse para descubrir la otredad y cada lector descubrirse así mismo. La literatura no existe para confrontar o dar una postura equilibrada, todo lo contrario, su propósito es amenazar el equilibrio del lector, desestabilizarlo; conmoverlo. Hacerlo flexivo. El presente ensayo tiene varios fines: 1 acercarnos a un escritor costarricense de amplia trayectoria y cuya influencia en el teatro ha sido importante: Daniel Gallegos. 2 Proponer a los docentes una forma de análisis que facilite el estudio de la obra dramática y promueva la reflexión entre sus estudiantes. Para tal efecto, se ha seleccionado la obra El séptimo círculo. ¿Por qué esta obra en especial? En estos tiempos, cuando el ser humano se ve inmerso en un ambiente convulso, cuando está a punto de perder la fe y la esperanza, es bueno detenerse y analizar su situación. Hay verdades complejas que se alojan en lugares terribles y la función inquietante del arte (en este caso específico, el teatro, es seguir recordando eso.

  16. ON THE CULT OF MARY OF DANIEL ZIELIŃSKI IN THE LIGHT OF THE "PREFACE" TO "SZATA WZORZYSTA DOSKONAŁOŚCI" (1649

    Directory of Open Access Journals (Sweden)

    Katarzyna Kaczor-Scheitler

    2017-10-01

    Full Text Available This article presents the issues tackled in the “Preface” to "Szata wzorzysta doskonałości, zakonnicę w oczach Boskich zdobiąca i wszelkim stanom ludzi żyć duchownie pragnących pożyteczna" ("The Patterned Robe of Perfection Worn by the Nun before the Eyes of God and Useful to All People Wishing to Lead a Spiritual Life" (Kraków 1649 by Daniel Zieliński, a Bernadine from Alwernia. Noteworthy in this work, orientated toward awakening prayer activity and promoting religious life, is the dedication to Mary, which constitutes an expression of the tribute to Mary made by the author as well as a testimony of his personal experience. The article shows that the “Preface” was written for the purpose of the cult of Mary and constitutes a testimony of the spirituality of the post-tridentine era. The author also reflected on the cult of Mary in Polish Catholicism, as manifested in the christenings, scapulars and rosaries, Marian Sodalities, the increasing role of sanctuaries to Mary (including Jasna Góra, Kalwaria Zebrzydowska and the related pilgrimage movement. The cult of Mary was spread through prayer books, sermons, religious poetry and devotional books.

  17. Influence of pig genetic type on sensory properties and consumer acceptance of Parma, San Daniele and Toscano dry-cured hams.

    Science.gov (United States)

    Pagliarini, Ella; Laureati, Monica; Dinnella, Caterina; Monteleone, Erminio; Proserpio, Cristina; Piasentier, Edi

    2016-02-01

    This study investigated the sensory properties and acceptability of different Protected Designation of Origin (PDO) dry-cured hams. For each PDO, two genotypes were selected: IL×LW (reference hybrid) and Goland (commercial hybrid). According to descriptive analysis, genetic variance affected few attributes describing Toscano and San Daniele ham sensory quality. The commercial hybrid Parma ham was distinct from the traditional one, the Goland genotype being significantly higher in red color, saltiness, dryness and hardness and showing a lower intensity of pork-meat odor/flavor and sweetness than the IL×LW genotype. Consumer acceptance was mainly influenced by the PDO technology. A genotype effect on acceptance was only observed in Toscano ham. Principal component regression analysis revealed that Toscano ham was the preferred sample. Considering that the consumers involved were from Tuscany, it is likely that Toscano ham was preferred owing to their higher familiarity with this product. Sensory properties of ham samples were better discriminated according to their PDO than their genotype. Likewise, consumer liking was more affected by the specific PDO technology than by genetic type. Toscano ham was the most preferred and most familiar product among Tuscan consumers, indicating that familiarity with the product was the best driver of dry-cured ham preference. © 2015 Society of Chemical Industry.

  18. Biobeam—Multiplexed wave-optical simulations of light-sheet microscopy

    Science.gov (United States)

    Weigert, Martin; Bundschuh, Sebastian T.

    2018-01-01

    Sample-induced image-degradation remains an intricate wave-optical problem in light-sheet microscopy. Here we present biobeam, an open-source software package that enables simulation of operational light-sheet microscopes by combining data from 105–106 multiplexed and GPU-accelerated point-spread-function calculations. The wave-optical nature of these simulations leads to the faithful reproduction of spatially varying aberrations, diffraction artifacts, geometric image distortions, adaptive optics, and emergent wave-optical phenomena, and renders image-formation in light-sheet microscopy computationally tractable. PMID:29652879

  19. Quantum simulations with noisy quantum computers

    Science.gov (United States)

    Gambetta, Jay

    Quantum computing is a new computational paradigm that is expected to lie beyond the standard model of computation. This implies a quantum computer can solve problems that can't be solved by a conventional computer with tractable overhead. To fully harness this power we need a universal fault-tolerant quantum computer. However the overhead in building such a machine is high and a full solution appears to be many years away. Nevertheless, we believe that we can build machines in the near term that cannot be emulated by a conventional computer. It is then interesting to ask what these can be used for. In this talk we will present our advances in simulating complex quantum systems with noisy quantum computers. We will show experimental implementations of this on some small quantum computers.

  20. Verifying and Validating Simulation Models

    Energy Technology Data Exchange (ETDEWEB)

    Hemez, Francois M. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-02-23

    This presentation is a high-level discussion of the Verification and Validation (V&V) of computational models. Definitions of V&V are given to emphasize that “validation” is never performed in a vacuum; it accounts, instead, for the current state-of-knowledge in the discipline considered. In particular comparisons between physical measurements and numerical predictions should account for their respective sources of uncertainty. The differences between error (bias), aleatoric uncertainty (randomness) and epistemic uncertainty (ignorance, lack-of- knowledge) are briefly discussed. Four types of uncertainty in physics and engineering are discussed: 1) experimental variability, 2) variability and randomness, 3) numerical uncertainty and 4) model-form uncertainty. Statistical sampling methods are available to propagate, and analyze, variability and randomness. Numerical uncertainty originates from the truncation error introduced by the discretization of partial differential equations in time and space. Model-form uncertainty is introduced by assumptions often formulated to render a complex problem more tractable and amenable to modeling and simulation. The discussion concludes with high-level guidance to assess the “credibility” of numerical simulations, which stems from the level of rigor with which these various sources of uncertainty are assessed and quantified.

  1. Beyond the Soundtrack: Representing Music in Cinema, a cura di Daniel Goldmark, Lawrence Kramer e Richard Leppert, Berkeley, University of California Press, 2007

    Directory of Open Access Journals (Sweden)

    Francesco Finocchiaro

    2012-11-01

    Full Text Available Beyond the Soundtrack: Representing Music in Cinema (edited by Daniel Goldmark, Lawrence Kramer and Richard Leppert, Berkeley, University of California Press, 2007, viii-324 pp. offers sixteen essays of various authors about film music. These papers were presented in 2004 in a study congress at the University of Minnesota. In introducing the book, the editors assert an assumption, today broadly accepted: indeed they affirm, that music has traditionally been regarded as a subordinate element in cinematographic text: film music literature still has a marginal position in the much larger field of film studies which focuses on image, narrative, film history. In this theoretical and historiographic context, the expression “Beyond the Soundtrack” is meant to be more than a title: it is the manifesto of a conceptual shift. We can summarize this change in reconsidering the importance of film music, in order to understand a movie not only as a visual, but also as a musical medium. The change of paradigm brings renewed questions and completely new issues. If we abandon the assumption, at this point obsolete, that film music has a mere functional role, it will be necessary to ask not how to conceptualize the use of music in film, but rather how the film conceptualizes music: how films imagine music, how films represent music as an artistic and social phenomenon, and how films position music as an integral parts of a fictional world. Such questions aim to consider film music not as an atmospheric expedient, but «as an agent, a force, and an object engaged in ongoing negotiations with image, narrative, and context», as the editors assert at the very beginning of their book.

  2. Znaczenie intencji dla moralnej oceny czynu - stanowisko Daniela Wegnera (THE MEANING OF INTENTION FOR MORAL EVALUATION OF AN ACTION - DANIEL WEGNER VIEW

    Directory of Open Access Journals (Sweden)

    Marcin Cichosz

    2008-12-01

    Full Text Available In the article, the author attempts to compare and confront Daniel Wegner's idea of a conscious will with the selected ethic doctrines in the context of relationship between intention and the moral evaluation of an action. According to the utilitarian doctrine, when one evaluates an action intention should not be considered because only the results of an action are relevant. On the other hand, Kant and the ethics of love for fellowmen claim that intention is a direct cause of action, therefore, it is intention that should really be evaluated. On the basis of Wegner's model of a conscious will, one may state that an utilitarian attitude is more justified in many causes. In the act of volition, intention serves only as a commentary, rather than as a cause (as it is commonly believed. In Wegner's opinion the main role of intention is to explain action in the context of the plans, desires and beliefs of an agent. It is all due to the fact that in social interactions, one should always have the ability to explain one's own behavior: ignorance of the causes of one's behavior is inadmissible in this context (odium of insane action. Moreover, when intention and action match, a specific kind of feeling - phenomenal will - is added to the act of volition. This particular feeling not only strengthens the relationship between intention and action. but it also helps the agent to distinguish his own actions from other actions of other agents. It means that the ultimate form of intention may be completely different from the actual causes of a particular type of behavior.To conclude, due to Wegner's work, the utilitarian doctrine gained strong support for the thesis that intention should not be considered during the moral evaluation of action.

  3. Maailm aastal 2026 / Daniel Franklin

    Index Scriptorium Estoniae

    Franklin, Daniel

    2005-01-01

    Aastaks 2026 ennustatakse, et maailma tugevama majandusega riikideks on Hiina ja USA ning Euroopa majandus hääbub. Diagrammid: SKP 2006/2026 ostujõu pariteedi alusel, % kogu maailmast; SKP 2006/2026 turuvahetuskursi alusel, % kogu maailmast

  4. Long-term Outcomes and Quality of Life of 186 Patients With Primary Parotid Carcinoma Treated With Surgery and Radiotherapy at the Daniel den Hoed Cancer Center

    Energy Technology Data Exchange (ETDEWEB)

    Al-Mamgani, Abrahim, E-mail: a.al-mamgani@erasmusmc.nl [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Rooij, Peter van [Department of Biostatistics, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Verduijn, Gerda M. [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Meeuwis, Cees A. [Department of Otorhinolaryngology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Levendag, Peter C. [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands)

    2012-09-01

    Purpose: To assess the outcomes, toxicity, and quality of life (QOL) of patients with primary parotid carcinoma treated with surgery and postoperative radiotherapy at the Daniel den Hoed Cancer Center. Methods and Materials: Between 1995 and 2010, 186 patients with parotid carcinoma were treated with parotidectomy with or without neck dissection, followed by radiotherapy. Elective nodal irradiation (ENI) was applied to high-risk, node-negative disease. End points were locoregional control (LRC), disease-free survival (DFS), cause-specific survival (CSS), and overall survival (OS), late toxicity, and QOL. Results: After a median follow-up of 58 months (range, 4-172 months), the 5-year Kaplan-Meier estimates for LRC, DFS, CSS, and OS were 89%, 83%, 80%, and 68%, respectively. Forty-five events were reported: 24 distant metastases (DM) and 21 locoregional failures (LRF). Event-free survival rates by histological types were 89%, 78%, 76%, 74%, and 70% for acinic cell, mucoepidermoid, adenoid cystic, adenocarcinoma, and squamous cell carcinoma, respectively. More LRF were reported in patients with squamous cell and high-grade mucoepidermoid carcinoma (21% and 19%, respectively) than in patients with other histological types (p = 0.04) and more DM in patients with adenoid cystic and adenocarcinoma (20% and 19%, respectively) than in patients with other types (p = 0.03). None of the high-risk node-negative patients who received ENI developed regional failure. On multivariate analysis, T stage, N stage, grade, and presence of perineural invasion and facial paralysis correlated significantly with DFS. The 5-year cumulative incidence of grade {>=}2 late toxicity was 8%. QOL scores deteriorate during and shortly after treatment but returned in almost all scales to baseline scores within 6 months. Conclusions: Of the entire group, surgery and postoperative radiotherapy resulted in excellent outcomes with minimal side effects and preservation of good QOL scores. However, in

  5. Long-term Outcomes and Quality of Life of 186 Patients With Primary Parotid Carcinoma Treated With Surgery and Radiotherapy at the Daniel den Hoed Cancer Center

    International Nuclear Information System (INIS)

    Al-Mamgani, Abrahim; Rooij, Peter van; Verduijn, Gerda M.; Meeuwis, Cees A.; Levendag, Peter C.

    2012-01-01

    Purpose: To assess the outcomes, toxicity, and quality of life (QOL) of patients with primary parotid carcinoma treated with surgery and postoperative radiotherapy at the Daniel den Hoed Cancer Center. Methods and Materials: Between 1995 and 2010, 186 patients with parotid carcinoma were treated with parotidectomy with or without neck dissection, followed by radiotherapy. Elective nodal irradiation (ENI) was applied to high-risk, node-negative disease. End points were locoregional control (LRC), disease-free survival (DFS), cause-specific survival (CSS), and overall survival (OS), late toxicity, and QOL. Results: After a median follow-up of 58 months (range, 4–172 months), the 5-year Kaplan-Meier estimates for LRC, DFS, CSS, and OS were 89%, 83%, 80%, and 68%, respectively. Forty-five events were reported: 24 distant metastases (DM) and 21 locoregional failures (LRF). Event-free survival rates by histological types were 89%, 78%, 76%, 74%, and 70% for acinic cell, mucoepidermoid, adenoid cystic, adenocarcinoma, and squamous cell carcinoma, respectively. More LRF were reported in patients with squamous cell and high-grade mucoepidermoid carcinoma (21% and 19%, respectively) than in patients with other histological types (p = 0.04) and more DM in patients with adenoid cystic and adenocarcinoma (20% and 19%, respectively) than in patients with other types (p = 0.03). None of the high-risk node-negative patients who received ENI developed regional failure. On multivariate analysis, T stage, N stage, grade, and presence of perineural invasion and facial paralysis correlated significantly with DFS. The 5-year cumulative incidence of grade ≥2 late toxicity was 8%. QOL scores deteriorate during and shortly after treatment but returned in almost all scales to baseline scores within 6 months. Conclusions: Of the entire group, surgery and postoperative radiotherapy resulted in excellent outcomes with minimal side effects and preservation of good QOL scores. However, in

  6. Evaluación ética de la autoexperimentación de Daniel A. Carrión y su perfil de personalidad

    Directory of Open Access Journals (Sweden)

    Alberto Perales

    2003-09-01

    Full Text Available OBJETIVOS: 1 Análisis ético de la autoexperimentación de Daniel A. Carrión (DAC, integrando como variable su perfil de personalidad; 2 Evaluar el dilema ético públicamente planteado sobre tal acto por el Dr. Ignacio La Puente, entonces Secretario de la Facultad de Medicina de San Fernando, el 06 de Octubre de 1885. MATERIAL Y METODO. 1 Clasificación documentaria cualitativa. 2 Clasificación de las fuentes de referencia según origen. 3 Organización de un registro cronológico sistemático. 4 Análisis crítico de los documentos así clasificados e identificación de las particularidades específicas de la conducta de DAC; 5 Configuración de su perfil de personalidad identificando patrones conductuales de respuesta por criterios de coherencia, unicidad, interdependencia con el contexto situacional e interrelación con el contexto nacional y mundial de su época. 6 Comparación de su perfil de personalidad con las cualidades del científico o buen investigador descritas por Selye. RESULTADOS Y CONCLUSIONES. De las doce conclusiones obtenidas resumimos las siguientes : 1º La Personalidad de Carrión muestra rasgos normales, sin visos de neuroticismo ni psicopatía; 2º En su carácter destacan los rasgos de asertividad, perseverancia, disciplina, estabilidad emocional, honestidad consigo mismo y con los demás, buenas relaciones interpersonales, capacidad de liderazgo y convicción plena en sus conocimientos; 3º Su vida estuvo dedicada enteramente a la ciencia; 4º La tesis de la muerte accidental del padre es falsa. El padre murió en Loja (Ecuador en 1877. No hay evidencias de que Carrión conociera este hecho; 7º El análisis grafológico confirma los rasgos de personalidad descritos; 8º El perfil de personalidad de Carrión satisface todos los criterios de Selye; 9º Su autoexperimentación se apoya en una sólida formulación científica y elevada escala de valores en la cual destacan un alto nivel de beneficentismo y apego

  7. The Daniel K. Inouye College of Pharmacy Scripts: Poha Berry (Physalis peruviana) with Potential Anti-inflammatory and Cancer Prevention Activities.

    Science.gov (United States)

    Chang, Leng Chee; Sang-Ngern, Mayuramas; Pezzuto, John M; Ma, Carolyn

    2016-11-01

    The Daniel K. Inouye College of Pharmacy, during a historic event in Spring 2016, graduated the first two students in the Pacific region to earn a PhD in pharmaceutical sciences at the University of Hawai'i at Hilo. The college offers PhD programs in these five disciplines: Cancer Biology, Medicinal Chemistry, Pharmaceutics, Pharmacognosy, and Pharmacology. One of the Pharmacognosy dissertations focused on plant-derived natural products with potential anti-inflammatory and cancer chemopreventive activities. Physalis peruviana (Pp) L. originated in tropical South America. It has become naturalized and is found readily on the Island of Hawai'i. The edible fruits are commonly known as cape gooseberry or poha in Hawai'i. In part of our study, three new withanolides, physaperuvin G ( 1 ), physaperuvins I-J ( 2 - 3 ), along with four known withanolides, namely, 4β-hydroxywithanolide E ( 4 ), withaperuvin C ( 5 ), and physalactone ( 6 ), coagulin ( 7 ) were isolated from the aerial parts of P. peruviana . In addition, two known compounds, phyperunolide F ( 8 ), and withanolide S ( 9 ), were isolated and identified from the poha berry fruits. The structures and absolute stereochemistry of new compounds from poha were elucidated by several spectroscopy methods: Nuclear Magnetic Resonance (NMR) spectroscopy, X-ray diffraction, and mass spectrometry analyses. All isolated poha compounds (aerial parts and fruits) were evaluated for their anti-inflammatory activity with lipopolysaccharide (LPS)-activated murine macrophage RAW 264.7 cells, and tumor necrosis factor alpha (TNF-α)-activated nuclear factor-kappa B (NF-κB) with transfected human embryonic kidney cells 293. Most of the isolated natural compounds showed activity with these assays. Additional studies were performed with models of colon cancer. Specifically, 4β-hydroxywithanolide E (4HWE) inhibited the growth of colon cancer monolayer and spheroid cultures. The compound induced cell cycle arrest at low

  8. Numerical Simulation of a Tumor Growth Dynamics Model Using Particle Swarm Optimization.

    Science.gov (United States)

    Wang, Zhijun; Wang, Qing

    Tumor cell growth models involve high-dimensional parameter spaces that require computationally tractable methods to solve. To address a proposed tumor growth dynamics mathematical model, an instance of the particle swarm optimization method was implemented to speed up the search process in the multi-dimensional parameter space to find optimal parameter values that fit experimental data from mice cancel cells. The fitness function, which measures the difference between calculated results and experimental data, was minimized in the numerical simulation process. The results and search efficiency of the particle swarm optimization method were compared to those from other evolutional methods such as genetic algorithms.

  9. Del despertar de la criada a la criada despierta. Reflexión en torno a la écfrasis y el valor de la imagen en un relato de Daniel Briguet

    Directory of Open Access Journals (Sweden)

    Lucía Campanella

    2015-07-01

    Full Text Available This paper analyses the ekphrasis – in its double meaning of “vivid description” and “description of a work of art” – in “El despertar de la criada”, a Daniel Briguet's short story (Rosario, Homo Sapiens, 2010. Through close reading of both the story and the painting (Le lever de la bonne, Eduardo Sívori, 1887 we will study the change and the permanence in the representation of domesticity and its protagonists in the XIXth - XXIth centuries.

  10. RELACIÓN ENTRE LA ANEMIA GESTACIONAL EN LA ALTURA DETECTADO EN EL I TRIMESTRE Y LOS RESULTADOS PERINATALES. HOSPITAL DANIEL ALCIDES CARRIÓN PASCO. AÑO 2015

    OpenAIRE

    Rios Bernardo, Cledy Ruperta

    2017-01-01

    Objetivo: Determinar la relación entre la anemia gestacional en la altura detectado en el I trimestre y los resultados perinatales. Hospital Daniel Alcides Carrión – Pasco. Año 2015. Método de Estudio: Deductivo; diseño descriptivo de nivel relacional, tipo retrospectivo, de cohorte transversal; la población estudiada estuvo constituida por 44 gestantes. Resultados: 1. La edad más frecuente 18 años, el 86% procedente de la zonas distritales, con estudios de secundaria en el 64% y 73% co...

  11. Análisis del factor tecnológico desde las perspectivas de Lewis Mumford, Herbert Marcuse, Daniel Bell y su relación con la política de información

    Directory of Open Access Journals (Sweden)

    Lourdes Díaz

    2014-02-01

    Full Text Available El presente trabajo registra tres miradas distintas acerca del rol del factor tecnológico en la construcción de la sociedad contemporánea, siguiendo las líneas de interpretación y análisis de Lewis Mumford, Herbert Marcuse y Daniel Bell. Se pretenden aportar algunos elementos teóricos  al debate que se ha dado en Ciencia de la Información sobre el papel de las TIC en la disciplina y el lugar que ocupa, o debería ocupar, lo tecnológico en el diseño de una política de información.

  12. Tractable Quantification of Entanglement for Multipartite Pure States

    International Nuclear Information System (INIS)

    Nian-Quan, Jiang; Yu-Jian, Wang; Yi-Zhuang, Zheng; Gen-Chang, Cai

    2008-01-01

    We present kth-order entanglement measure and global kth-order entanglement measure for multipartite pure states, and extend Bennett's measure of partial entropy for bipartite pure states to a multipartite case. These measures are computable and can effectively classify and quantify the entanglement of multipartite pure states. (general)

  13. Tractable Quantification of Metastability for Robust Bipedal Locomotion

    Science.gov (United States)

    2015-06-01

    supporting me from the other side of the earth all these years. Finally, I would like to thank Institute for Collaborative Biotechnologies for funding my...Robotics & Automation Magazine , IEEE, 14(2):18–29. Available from: http://ieeexplore.ieee.org/xpls/abs all. jsp?arnumber=4264364. [Lagarias et al

  14. Tractable Algorithms for Proximity Search on Large Graphs

    Science.gov (United States)

    2010-07-01

    Education never ends, Watson. It is a series of lessons with the greatest for the last. — Sir Arthur Conan Doyle’s Sherlock Holmes . 2.1 Introduction A...Doyle’s Sherlock Holmes . 5.1 Introduction In this thesis, our main goal is to design fast algorithms for proximity search in large graphs. In chapter 3...Conan Doyle’s Sherlock Holmes . In this thesis our main focus is on investigating some useful random walk based prox- imity measures. We have started

  15. Tractable policy management framework for IoT

    Science.gov (United States)

    Goynugur, Emre; de Mel, Geeth; Sensoy, Murat; Calo, Seraphin

    2017-05-01

    Due to the advancement in the technology, hype of connected devices (hence forth referred to as IoT) in support of automating the functionality of many domains, be it intelligent manufacturing or smart homes, have become a reality. However, with the proliferation of such connected and interconnected devices, efficiently and effectively managing networks manually becomes an impractical, if not an impossible task. This is because devices have their own obligations and prohibitions in context, and humans are not equip to maintain a bird's-eye-view of the state. Traditionally, policies are used to address the issue, but in the IoT arena, one requires a policy framework in which the language can provide sufficient amount of expressiveness along with efficient reasoning procedures to automate the management. In this work we present our initial work into creating a scalable knowledge-based policy framework for IoT and demonstrate its applicability through a smart home application.

  16. How Action Understanding can be Rational, Bayesian and Tractable

    NARCIS (Netherlands)

    Blokpoel, M.; Kwisthout, J.H.P.; Weide, Th.P. van der; Rooij, I.J.E.I. van; Ohlsson, S.; Catrambone, R.

    2010-01-01

    An important aspect of human sociality is our ability to understand the actions of others as being goal-directed. Recently, the now classic rational approach to explaining this ability has been given a formal incarnation in the Bayesian Inverse Planning (BIP) model of Baker, Saxe, and Tenenbaum

  17. The grant game as training ground for tractability?

    DEFF Research Database (Denmark)

    Petersen, Eva Bendix

    2016-01-01

    The future of education research is linked to what early career researchers in Education are doing and learning to do now. This paper presents a narrative of one early career researcher who works and lives in Australia. She tells the story about how she came to research and to an academic life......, about what her doctoral work and education taught her and how now, as an academic in an on-going position, she feels needs to unlearn many of those values and practices in order to succeed particularly in the so-called ‘grant game’. The narrative format, though, is intended to invite and encourage other...

  18. The Pearson diffusions: A class of statistically tractable diffusion processes

    DEFF Research Database (Denmark)

    Forman, Julie Lyng; Sørensen, Michael

    The Pearson diffusions is a flexible class of diffusions defined by having linear drift and quadratic squared diffusion coefficient. It is demonstrated that for this class explicit statistical inference is feasible. Explicit optimal martingale estimating func- tions are found, and the corresponding...

  19. Sleep and Development in Genetically Tractable Model Organisms.

    Science.gov (United States)

    Kayser, Matthew S; Biron, David

    2016-05-01

    Sleep is widely recognized as essential, but without a clear singular function. Inadequate sleep impairs cognition, metabolism, immune function, and many other processes. Work in genetic model systems has greatly expanded our understanding of basic sleep neurobiology as well as introduced new concepts for why we sleep. Among these is an idea with its roots in human work nearly 50 years old: sleep in early life is crucial for normal brain maturation. Nearly all known species that sleep do so more while immature, and this increased sleep coincides with a period of exuberant synaptogenesis and massive neural circuit remodeling. Adequate sleep also appears critical for normal neurodevelopmental progression. This article describes recent findings regarding molecular and circuit mechanisms of sleep, with a focus on development and the insights garnered from models amenable to detailed genetic analyses. Copyright © 2016 by the Genetics Society of America.

  20. Tractable Morality : customer discourses of bankers, veterinarians and charity workers.

    NARCIS (Netherlands)

    G. de Graaf (Gjalt)

    2003-01-01

    textabstractEthical problems continually confront managers in the workplace, but how do they know what the “right” thing to do is? A manager’s world is more complicated than choosing between “doing well” and “doing good.” It is difficult enough to identify the ethical dimensions of their decisions

  1. Exploring the tractability of the capped hose model

    NARCIS (Netherlands)

    Bosman, T. (Thomas); N.K. Olver (Neil)

    2017-01-01

    textabstractRobust network design concerns the design of networks to support uncertain or varying traffic patterns. An especially important case is the VPN problem, where the total traffic emanating from any node is bounded, but there are no further constraints on the traffic pattern. Recently,

  2. Network Simulation

    CERN Document Server

    Fujimoto, Richard

    2006-01-01

    "Network Simulation" presents a detailed introduction to the design, implementation, and use of network simulation tools. Discussion topics include the requirements and issues faced for simulator design and use in wired networks, wireless networks, distributed simulation environments, and fluid model abstractions. Several existing simulations are given as examples, with details regarding design decisions and why those decisions were made. Issues regarding performance and scalability are discussed in detail, describing how one can utilize distributed simulation methods to increase the

  3. Dynamic simulation of a direct carbonate fuel cell power plant

    Energy Technology Data Exchange (ETDEWEB)

    Ernest, J.B. [Fluor Daniel, Inc., Irvine, CA (United States); Ghezel-Ayagh, H.; Kush, A.K. [Fuel Cell Engineering, Danbury, CT (United States)

    1996-12-31

    Fuel Cell Engineering Corporation (FCE) is commercializing a 2.85 MW Direct carbonate Fuel Cell (DFC) power plant. The commercialization sequence has already progressed through construction and operation of the first commercial-scale DFC power plant on a U.S. electric utility, the 2 MW Santa Clara Demonstration Project (SCDP), and the completion of the early phases of a Commercial Plant design. A 400 kW fuel cell stack Test Facility is being built at Energy Research Corporation (ERC), FCE`s parent company, which will be capable of testing commercial-sized fuel cell stacks in an integrated plant configuration. Fluor Daniel, Inc. provided engineering, procurement, and construction services for SCDP and has jointly developed the Commercial Plant design with FCE, focusing on the balance-of-plant (BOP) equipment outside of the fuel cell modules. This paper provides a brief orientation to the dynamic simulation of a fuel cell power plant and the benefits offered.

  4. Simulators IV

    International Nuclear Information System (INIS)

    Fairchild, B.T.

    1987-01-01

    These proceedings contain papers on simulators with artificial intelligence, and the human decision making process; visuals for simulators: human factors, training, and psycho-physical impacts; the role of institutional structure on simulation projects; maintenance trainers for economic value and safety; biomedical simulators for understanding nature, for medical benefits, and the physiological effects of simulators; the mathematical models and numerical techniques that drive today's simulators; and the demography of simulators, with census papers identifying the population of real-time simulator training devices; nuclear reactors

  5. Fidelity Witnesses for Fermionic Quantum Simulations

    Science.gov (United States)

    Gluza, M.; Kliesch, M.; Eisert, J.; Aolita, L.

    2018-05-01

    The experimental interest and developments in quantum spin-1 /2 chains has increased uninterruptedly over the past decade. In many instances, the target quantum simulation belongs to the broader class of noninteracting fermionic models, constituting an important benchmark. In spite of this class being analytically efficiently tractable, no direct certification tool has yet been reported for it. In fact, in experiments, certification has almost exclusively relied on notions of quantum state tomography scaling very unfavorably with the system size. Here, we develop experimentally friendly fidelity witnesses for all pure fermionic Gaussian target states. Their expectation value yields a tight lower bound to the fidelity and can be measured efficiently. We derive witnesses in full generality in the Majorana-fermion representation and apply them to experimentally relevant spin-1 /2 chains. Among others, we show how to efficiently certify strongly out-of-equilibrium dynamics in critical Ising chains. At the heart of the measurement scheme is a variant of importance sampling specially tailored to overlaps between covariance matrices. The method is shown to be robust against finite experimental-state infidelities.

  6. Las Opiniones sacadas de los más auténticos y antigos philósofos que sobre la alma escrivieron i sus definiciones, de Daniel Arón Afia.

    Directory of Open Access Journals (Sweden)

    2008-06-01

    Full Text Available Included in a volume published in 1568 in Venice alongside the first Spanish translation of Leon Hebreo’s Diálogos de amor, the Opiniones sacadas de los más auténticos y antigos philósofos que sobre la alma escrivieron y sus difiniciones, were written by Aron Daniel Afia, an important Latin and Philosophy scholar in the Salonika of the second half of the 16th c. Descendant of a Converso family returned to Judaism after settlement in Ottoman lands, his short twelve folio work is a compendium of definitions of the soul proposed by thinkers from Antiquity to Renaissance, being a precious example of the intellectual activity (in Latin, Spanish and Hebrew of the Conversos who chose exile in the Levant. The volume, dedicated to Philip II, shows the attachment of former Conversos to Spanish culture.Las Opiniones sacadas de los más auténticos y antigos philósofos que sobre la alma escrivieron y sus definiciones fueron publicadas en 1568 en Venecia, junto con la primera traducción española de los Diálogos de amor de León Hebreo. Escritas por Daniel Arón Afia, profesor de latín y filosofía establecido en la Salónica de la segunda mitad del siglo XVI, este autor de familia conversa vuelta al judaísmo tras su establecimiento en tierras otomanas. El opúsculo de apenas doce folios es un compendio de definiciones del alma propuestas por pensadores, desde la Antigüedad hasta el Renacimiento, muestra de la actividad intelectual desarrollada en hebreo, latín y castellano de los conversos que escogieron la vía del exilio en el Levante mediterráneo. El volumen fue dedicado a Felipe II y muestra el apego de su promotor a la cultura hispánica.

  7. A Maximum Muscle Strength Prediction Formula Using Theoretical Grade 3 Muscle Strength Value in Daniels et al.’s Manual Muscle Test, in Consideration of Age: An Investigation of Hip and Knee Joint Flexion and Extension

    Directory of Open Access Journals (Sweden)

    Hideyuki Usa

    2017-01-01

    Full Text Available This study attempted to develop a formula for predicting maximum muscle strength value for young, middle-aged, and elderly adults using theoretical Grade 3 muscle strength value (moment fair: Mf—the static muscular moment to support a limb segment against gravity—from the manual muscle test by Daniels et al. A total of 130 healthy Japanese individuals divided by age group performed isometric muscle contractions at maximum effort for various movements of hip joint flexion and extension and knee joint flexion and extension, and the accompanying resisting force was measured and maximum muscle strength value (moment max, Mm was calculated. Body weight and limb segment length (thigh and lower leg length were measured, and Mf was calculated using anthropometric measures and theoretical calculation. There was a linear correlation between Mf and Mm in each of the four movement types in all groups, excepting knee flexion in elderly. However, the formula for predicting maximum muscle strength was not sufficiently compatible in middle-aged and elderly adults, suggesting that the formula obtained in this study is applicable in young adults only.

  8. La concepción del yo en Daniel Dennett: Un análisis de la relación entre la perspectiva heterofenomenológica y el enfoque memético

    Directory of Open Access Journals (Sweden)

    Ayelen Sánchez

    2014-06-01

    Full Text Available El presente trabajo se propone analizar la posición de Daniel Dennett con respecto a la realidad y naturaleza del yo. El autor considera que la concepción del yo humano propia del sentido común, en tanto que un elemento único, simple, idéntico y continuo, es fundamentalmente una ficción. A partir de este diagnóstico, Dennett se propone ofrecer una explicación de este fenómeno ilusorio desde una doble perspectiva: la heterofenomenología y la memética. La primera y segunda parte de este trabajo estarán destinadas a desarrollar respectivamente estos dos enfoques. En la tercera parte serán analizadas las afirmaciones hechas por el autor dentro de los mencionados marcos teóricos, con el objetivo de mostrar que ambos desarrollos no se complementan entre sí, sino que, por el contrario, presentan ciertas contradicciones a la hora de reconstruir la postura dennettiana global con respecto al yo humano.

  9. Recycle Waste Collection Tank (RWCT) simulant testing in the PVTD feed preparation system

    International Nuclear Information System (INIS)

    Abrigo, G.P.; Daume, J.T.; Halstead, S.D.; Myers, R.L.; Beckette, M.R.; Freeman, C.J.; Hatchell, B.K.

    1996-03-01

    (This is part of the radwaste vitrification program at Hanford.) RWCT was to routinely receive final canister decontamination sand blast frit and rinse water, Decontamination Waste Treatment Tank bottoms, and melter off-gas Submerged Bed Scrubber filter cake. In order to address the design needs of the RWCT system to meet performance levels, the PNL Vitrification Technology (PVTD) program used the Feed Preparation Test System (FPTS) to evaluate its equipment and performance for a simulant of RWCT slurry. (FPTS is an adaptation of the Defense Waste Processing Facility feed preparation system and represents the initially proposed Hanford Waste Vitrification Plant feed preparation system designed by Fluor-Daniel, Inc.) The following were determined: mixing performance, pump priming, pump performance, simulant flow characterization, evaporator and condenser performance, and ammonia dispersion. The RWCT test had two runs, one with and one without tank baffles

  10. Final Report. Coupled simulations of Antarctic Ice-sheet/ocean interactions using POP and CISM

    Energy Technology Data Exchange (ETDEWEB)

    Asay-Davis, Xylar Storm [Potsdam Institute for Climate Impact Research, Potdam (Germany)

    2015-12-30

    The project performed under this award, referred to from here on as CLARION (CoupLed simulations of Antarctic Ice-sheet/Ocean iNteractions), included important advances in two models of ice sheet and ocean interactions. Despite its short duration (one year), the project made significant progress on its three major foci. First, together with collaborator Daniel Martin at Lawrence Berkeley National Laboratory (LBNL), I developed the POPSICLES coupled ice sheet-ocean model to the point where it could perform a number of pan-Antarctic simulations under various forcing conditions. The results were presented at a number of major conferences and workshops worldwide, and are currently being incorporated into two manuscripts in preparation.

  11. Elastic dipoles of point defects from atomistic simulations

    Science.gov (United States)

    Varvenne, Céline; Clouet, Emmanuel

    2017-12-01

    The interaction of point defects with an external stress field or with other structural defects is usually well described within continuum elasticity by the elastic dipole approximation. Extraction of the elastic dipoles from atomistic simulations is therefore a fundamental step to connect an atomistic description of the defect with continuum models. This can be done either by a fitting of the point-defect displacement field, by a summation of the Kanzaki forces, or by a linking equation to the residual stress. We perform here a detailed comparison of these different available methods to extract elastic dipoles, and show that they all lead to the same values when the supercell of the atomistic simulations is large enough and when the anharmonic region around the point defect is correctly handled. But, for small simulation cells compatible with ab initio calculations, only the definition through the residual stress appears tractable. The approach is illustrated by considering various point defects (vacancy, self-interstitial, and hydrogen solute atom) in zirconium, using both empirical potentials and ab initio calculations.

  12. Improving computational efficiency of Monte Carlo simulations with variance reduction

    International Nuclear Information System (INIS)

    Turner, A.; Davis, A.

    2013-01-01

    CCFE perform Monte-Carlo transport simulations on large and complex tokamak models such as ITER. Such simulations are challenging since streaming and deep penetration effects are equally important. In order to make such simulations tractable, both variance reduction (VR) techniques and parallel computing are used. It has been found that the application of VR techniques in such models significantly reduces the efficiency of parallel computation due to 'long histories'. VR in MCNP can be accomplished using energy-dependent weight windows. The weight window represents an 'average behaviour' of particles, and large deviations in the arriving weight of a particle give rise to extreme amounts of splitting being performed and a long history. When running on parallel clusters, a long history can have a detrimental effect on the parallel efficiency - if one process is computing the long history, the other CPUs complete their batch of histories and wait idle. Furthermore some long histories have been found to be effectively intractable. To combat this effect, CCFE has developed an adaptation of MCNP which dynamically adjusts the WW where a large weight deviation is encountered. The method effectively 'de-optimises' the WW, reducing the VR performance but this is offset by a significant increase in parallel efficiency. Testing with a simple geometry has shown the method does not bias the result. This 'long history method' has enabled CCFE to significantly improve the performance of MCNP calculations for ITER on parallel clusters, and will be beneficial for any geometry combining streaming and deep penetration effects. (authors)

  13. Simulating Biomass Fast Pyrolysis at the Single Particle Scale

    Energy Technology Data Exchange (ETDEWEB)

    Ciesielski, Peter [National Renewable Energy Laboratory (NREL); Wiggins, Gavin [ORNL; Daw, C Stuart [ORNL; Jakes, Joseph E. [U.S. Forest Service, Forest Products Laboratory, Madison, Wisconsin, USA

    2017-07-01

    Simulating fast pyrolysis at the scale of single particles allows for the investigation of the impacts of feedstock-specific parameters such as particle size, shape, and species of origin. For this reason particle-scale modeling has emerged as an important tool for understanding how variations in feedstock properties affect the outcomes of pyrolysis processes. The origins of feedstock properties are largely dictated by the composition and hierarchical structure of biomass, from the microstructural porosity to the external morphology of milled particles. These properties may be accounted for in simulations of fast pyrolysis by several different computational approaches depending on the level of structural and chemical complexity included in the model. The predictive utility of particle-scale simulations of fast pyrolysis can still be enhanced substantially by advancements in several areas. Most notably, considerable progress would be facilitated by the development of pyrolysis kinetic schemes that are decoupled from transport phenomena, predict product evolution from whole-biomass with increased chemical speciation, and are still tractable with present-day computational resources.

  14. Simulating Vito

    CERN Document Server

    Fragapane, Alexander

    2013-01-01

    This paper discusses the techniques used to simulate the proposed upgrade to the ASPIC line at ISOLDE, VITO. It discusses the process used in the program SIMION by explaining how to start with an Autodesk Inventor drawing and import this into SIMION to get a working simulation. It then goes on to discuss the pieces of VITO which have been simulated in the program and how they were simulated. Finally, it explains a little about the simulations of the full beamline which have been done and discusses what still needs to be done.

  15. Daniel Gallego Hernández (Ed.). Enfoques actuales en traducción económica e institucional. Actas del Congreso Internacional de Traducción Económica, Comercial, Financiera e Institucional. Suiça: Editorial Peter Lang, 2015. 254 p.

    OpenAIRE

    Miguel Tolosa Igualada

    2016-01-01

    Daniel Gallego-Hernández (ed.). Current Approaches to Business and Institutional Translation. Proceedings of the International Conference on Economic, Business, Financial and Institutional Translation / Enfoques actuales en traducción económica e institucional. Actas del Congreso Internacional de Traducción Económica, Comercial, Financiera e Institucional. Suíça: Peter Lang, 2015, 254 páginas. ISBN 978-3-0343-1656-9.

  16. Daniel Gallego Hernández (Ed.. Enfoques actuales en traducción económica e institucional. Actas del Congreso Internacional de Traducción Económica, Comercial, Financiera e Institucional. Suiça: Editorial Peter Lang, 2015. 254 p.

    Directory of Open Access Journals (Sweden)

    Miguel Tolosa Igualada

    2016-05-01

    Full Text Available http://dx.doi.org/10.5007/2175-7968.2016v36n2p291 Daniel Gallego Hernández (Ed.. Enfoques actuales en traducción económica e institucional. Actas del Congreso Internacional de Traducción Económica, Comercial, Financiera e Institucional. Suiça: Editorial Peter Lang, 2015. 254 p.

  17. Simulation games

    OpenAIRE

    Giddings, S.

    2013-01-01

    This chapter outlines the conventions and pleasures of simulation games as a category, and explores the complicated and contested term simulation. This concept goes to the heart of what computer games and video games are, and the ways in which they articulate ideas, processes, and phenomena between their virtual worlds and the actual world. It has been argued that simulations generate and communicate knowledge and events quite differently from the long-­dominant cultural mode of narrative. Th...

  18. Simulation reframed.

    Science.gov (United States)

    Kneebone, Roger L

    2016-01-01

    Simulation is firmly established as a mainstay of clinical education, and extensive research has demonstrated its value. Current practice uses inanimate simulators (with a range of complexity, sophistication and cost) to address the patient 'as body' and trained actors or lay people (Simulated Patients) to address the patient 'as person'. These approaches are often separate.Healthcare simulation to date has been largely for the training and assessment of clinical 'insiders', simulating current practices. A close coupling with the clinical world restricts access to the facilities and practices of simulation, often excluding patients, families and publics. Yet such perspectives are an essential component of clinical practice. This paper argues that simulation offers opportunities to move outside a clinical 'insider' frame and create connections with other individuals and groups. Simulation becomes a bridge between experts whose worlds do not usually intersect, inviting an exchange of insights around embodied practices-the 'doing' of medicine-without jeopardising the safety of actual patients.Healthcare practice and education take place within a clinical frame that often conceals parallels with other domains of expert practice. Valuable insights emerge by viewing clinical practice not only as the application of medical science but also as performance and craftsmanship.Such connections require a redefinition of simulation. Its essence is not expensive elaborate facilities. Developments such as hybrid, distributed and sequential simulation offer examples of how simulation can combine 'patient as body' with 'patient as person' at relatively low cost, democratising simulation and exerting traction beyond the clinical sphere.The essence of simulation is a purposeful design, based on an active process of selection from an originary world, abstraction of what is criterial and re - presentation in another setting for a particular purpose or audience. This may be done within

  19. Simulated experiments

    International Nuclear Information System (INIS)

    Bjerknes, R.

    1977-01-01

    A cybernetic model has been developed to elucidate some of the main principles of the growth regulation system in the epidermis of the hairless mouse. A number of actual and theoretical biological experiments have been simulated on the model. These included simulating the cell kinetics as measured by pulse labelling with tritiated thymidine and by continuous labelling with tritiated thymidine. Other simulated experiments included steady state, wear and tear, painting with a carcinogen, heredity and heredity and tumour. Numerous diagrams illustrate the results of these simulated experiments. (JIW)

  20. Combined multivariate statistical techniques, Water Pollution Index (WPI) and Daniel Trend Test methods to evaluate temporal and spatial variations and trends of water quality at Shanchong River in the Northwest Basin of Lake Fuxian, China.

    Science.gov (United States)

    Wang, Quan; Wu, Xianhua; Zhao, Bin; Qin, Jie; Peng, Tingchun

    2015-01-01

    Understanding spatial and temporal variations in river water quality and quantitatively evaluating the trend of changes are important in order to study and efficiently manage water resources. In this study, an analysis of Water Pollution Index (WPI), Daniel Trend Test, Cluster Analysis and Discriminant Analysis are applied as an integrated approach to quantitatively explore the spatial and temporal variations and the latent sources of water pollution in the Shanchong River basin, Northwest Basin of Lake Fuxian, China. We group all field surveys into 2 clusters (dry season and rainy season). Moreover, 14 sampling sites have been grouped into 3 clusters for the rainy season (highly polluted, moderately polluted and less polluted sites) and 2 clusters for the dry season (highly polluted and less polluted sites) based on their similarities and the level of pollution during the two seasons. The results show that the main trend of pollution was aggravated during the transition from the dry to the rainy season. The Water Pollution Index of Total Nitrogen is the highest of all pollution parameters, whereas the Chemical Oxygen Demand (Chromium) is the lowest. Our results also show that the main sources of pollution are farming activities alongside the Shanchong River, soil erosion and fish culture at Shanchong River reservoir area and domestic sewage from scattered rural residential area. Our results suggest that strategies to prevent water pollutionat the Shanchong River basin need to focus on non-point pollution control by employing appropriate fertilizer formulas in farming, and take the measures of soil and water conservation at Shanchong reservoir area, and purifying sewage from scattered villages.

  1. Combined multivariate statistical techniques, Water Pollution Index (WPI and Daniel Trend Test methods to evaluate temporal and spatial variations and trends of water quality at Shanchong River in the Northwest Basin of Lake Fuxian, China.

    Directory of Open Access Journals (Sweden)

    Quan Wang

    Full Text Available Understanding spatial and temporal variations in river water quality and quantitatively evaluating the trend of changes are important in order to study and efficiently manage water resources. In this study, an analysis of Water Pollution Index (WPI, Daniel Trend Test, Cluster Analysis and Discriminant Analysis are applied as an integrated approach to quantitatively explore the spatial and temporal variations and the latent sources of water pollution in the Shanchong River basin, Northwest Basin of Lake Fuxian, China. We group all field surveys into 2 clusters (dry season and rainy season. Moreover, 14 sampling sites have been grouped into 3 clusters for the rainy season (highly polluted, moderately polluted and less polluted sites and 2 clusters for the dry season (highly polluted and less polluted sites based on their similarities and the level of pollution during the two seasons. The results show that the main trend of pollution was aggravated during the transition from the dry to the rainy season. The Water Pollution Index of Total Nitrogen is the highest of all pollution parameters, whereas the Chemical Oxygen Demand (Chromium is the lowest. Our results also show that the main sources of pollution are farming activities alongside the Shanchong River, soil erosion and fish culture at Shanchong River reservoir area and domestic sewage from scattered rural residential area. Our results suggest that strategies to prevent water pollutionat the Shanchong River basin need to focus on non-point pollution control by employing appropriate fertilizer formulas in farming, and take the measures of soil and water conservation at Shanchong reservoir area, and purifying sewage from scattered villages.

  2. Simplified Eigen-structure decomposition solver for the simulation of two-phase flow systems

    International Nuclear Information System (INIS)

    Kumbaro, Anela

    2012-01-01

    This paper discusses the development of a new solver for a system of first-order non-linear differential equations that model the dynamics of compressible two-phase flow. The solver presents a lower-complexity alternative to Roe-type solvers because it only makes use of a partial Eigen-structure information while maintaining its accuracy: the outcome is hence a good complexity-tractability trade-off to consider as relevant in a large number of situations in the scope of two-phase flow numerical simulation. A number of numerical and physical benchmarks are presented to assess the solver. Comparison between the computational results from the simplified Eigen-structure decomposition solver and the conventional Roe-type solver gives insight upon the issues of accuracy, robustness and efficiency. (authors)

  3. A two-state stochastic model for nanoparticle self-assembly: theory, computer simulations and applications

    International Nuclear Information System (INIS)

    Schwen, E M; Mazilu, I; Mazilu, D A

    2015-01-01

    We introduce a stochastic cooperative model for particle deposition and evaporation relevant to ionic self-assembly of nanoparticles with applications in surface fabrication and nanomedicine, and present a method for mapping our model onto the Ising model. The mapping process allows us to use the established results for the Ising model to describe the steady-state properties of our system. After completing the mapping process, we investigate the time dependence of particle density using the mean field approximation. We complement this theoretical analysis with Monte Carlo simulations that support our model. These techniques, which can be used separately or in combination, are useful as pedagogical tools because they are tractable mathematically and they apply equally well to many other physical systems with nearest-neighbour interactions including voter and epidemic models. (paper)

  4. Excel simulations

    CERN Document Server

    Verschuuren, Gerard M

    2013-01-01

    Covering a variety of Excel simulations, from gambling to genetics, this introduction is for people interested in modeling future events, without the cost of an expensive textbook. The simulations covered offer a fun alternative to the usual Excel topics and include situations such as roulette, password cracking, sex determination, population growth, and traffic patterns, among many others.

  5. Simulating Science

    Science.gov (United States)

    Markowitz, Dina; Holt, Susan

    2011-01-01

    Students use manipulative models and small-scale simulations that promote learning of complex biological concepts. The authors have developed inexpensive wet-lab simulations and manipulative models for "Diagnosing Diabetes," "A Kidney Problem?" and "A Medical Mystery." (Contains 5 figures and 3 online resources.)

  6. Simulation tools

    CERN Document Server

    Jenni, F

    2006-01-01

    In the last two decades, simulation tools made a significant contribution to the great progress in development of power electronics. Time to market was shortened and development costs were reduced drastically. Falling costs, as well as improved speed and precision, opened new fields of application. Today, continuous and switched circuits can be mixed. A comfortable number of powerful simulation tools is available. The users have to choose the best suitable for their application. Here a simple rule applies: The best available simulation tool is the tool the user is already used to (provided, it can solve the task). Abilities, speed, user friendliness and other features are continuously being improved—even though they are already powerful and comfortable. This paper aims at giving the reader an insight into the simulation of power electronics. Starting with a short description of the fundamentals of a simulation tool as well as properties of tools, several tools are presented. Starting with simplified models ...

  7. Robust Multivariable Optimization and Performance Simulation for ASIC Design

    Science.gov (United States)

    DuMonthier, Jeffrey; Suarez, George

    2013-01-01

    Application-specific-integrated-circuit (ASIC) design for space applications involves multiple challenges of maximizing performance, minimizing power, and ensuring reliable operation in extreme environments. This is a complex multidimensional optimization problem, which must be solved early in the development cycle of a system due to the time required for testing and qualification severely limiting opportunities to modify and iterate. Manual design techniques, which generally involve simulation at one or a small number of corners with a very limited set of simultaneously variable parameters in order to make the problem tractable, are inefficient and not guaranteed to achieve the best possible results within the performance envelope defined by the process and environmental requirements. What is required is a means to automate design parameter variation, allow the designer to specify operational constraints and performance goals, and to analyze the results in a way that facilitates identifying the tradeoffs defining the performance envelope over the full set of process and environmental corner cases. The system developed by the Mixed Signal ASIC Group (MSAG) at the Goddard Space Flight Center is implemented as a framework of software modules, templates, and function libraries. It integrates CAD tools and a mathematical computing environment, and can be customized for new circuit designs with only a modest amount of effort as most common tasks are already encapsulated. Customization is required for simulation test benches to determine performance metrics and for cost function computation.

  8. L’aggressività della coppia criminale: la strage di Erba analizzata nell’ottica della coscienza intersoggettiva di D. Stern/L'agressivité des couples criminels : le massacre de Erba analysé par l'approche de la conscience intersubjective de Daniel Stern/The agressiveness of the criminal couples: the analysed massacre of Erba using the approach of the intersubjective conscience of Daniel Stern

    Directory of Open Access Journals (Sweden)

    Pasquale Caponnetto

    2013-12-01

    Full Text Available La coppia criminale è un fenomeno poco comune nell'ambito dei delitti in quanto la maggior parte dei criminali commette il crimine da solo o coinvolge altri individui solo per caso. Ciò nonostante, la letteratura rivela una serie di coppie criminali che hanno commesso diversi crimini, fino ad arrivare all’omicidio. Alcuni hanno ucciso per denaro, altri per odio, altri ancora per amore, per vendetta, per perversione. Bonnie e Clyde, Olindo e Rosa, Erika e Omar sono espressione di un viaggio nel fenomeno del “crimine di coppia” in cui manifestazioni di follia a due, al di là dell’infatuazione reciproca e della dipendenza psicologica, si svuotano di qualsiasi accezione romantica per concretizzarsi in qualcosa di spaventoso e incontenibile, capace di sfuggire ad ogni tipo di catalogazione e comprensione. Nel presente lavoro, in particolare, si andrà ad analizzare la coppia criminale degli autori della strage di Erba, che verrà esaminata nell’ottica della coscienza intersoggettiva di Stern. Le couple criminel est un phénomène rare puisque la majorité des crimes sont commis par des criminels seuls ou ce n’est que par hasard qu’ils impliquent d’autres personnes. Toutefois, la littérature parle d’une série de couples criminels qui ont commis des différents types de crimes (homicide inclus. Certains d’entre eux tuent pour de l’argent, certains autres à cause de la haine, de l’amour, de la revanche ou de la perversion. Bonnie et Clyde, Olindo et Rosa, Erika et Omar constituent des exemples du phénomène du « crime en couple ». Ce sont des situations de folie à deux qui n’ont aucune acception romantique et qui se traduisent en quelque chose d’horrifiant et d’incontrôlé. Dans cet article, les auteurs vont analyser le couple criminel composé par les responsables du massacre de Erba (Italie du Nord. L’objectif est d’examiner ce couple en utilisant l’approche de la conscience intersubjective de Daniel

  9. Simulator justifications

    International Nuclear Information System (INIS)

    Fairchild, B.T.

    1990-01-01

    For several years, the authors have been convinced by overwhelming evidence that dynamic simulators are justified for many applications where acceptance has been slow. They speculate as to why this situation has existed and list many benefits that accrue to those who use simulators for training and other purposes. This paper along may be sufficient to convince a receptive approval chain of the value of simulator ownership. It is intended primarily as an aid and supporting document for those who find it necessary to build a detailed justification for a specific simulator acquisition. The purchase of a simulator requires justification. For new military aircraft and for spacecraft, a simulator for training and performance evaluation is virtually assumed, value having been proven many times over. for commercial aircraft, safety is the overwhelming justification. For nuclear power plants, government regulations require operators to be licensed by examination on a certified simulator. For other applications, including air traffic control, biomedical, communications, electronic power transmission and distribution, emergency engineering and management, fossil power plants, gaming land vehicles, manufacturing, maintenance, marine vehicles, process plants, weapons, etc

  10. Process simulation

    International Nuclear Information System (INIS)

    Cao, E.G.; Suarez, P.S.; Pantaleon, J.C.

    1984-01-01

    The search for an optimal design of a heavy water plant is done by means of a simulation model for the mass and enthalpy balances of the SH 2 -H 2 O exchange process. A symplified model for the simulation diagram where the entire plant is represented by a sole tray tower with recicles, and heat and mass feeds/extractions was used. The tower is simulated by the method developed by Tomich with the convergence part given by the algorithm of Broyden. The concluding part of the work is centered in setting the design parameters (flowrates, heat exchange rates, number of plates) wich give the desired process operating conditions. (author) [es

  11. Solar Simulator

    Science.gov (United States)

    1981-01-01

    Oriel Corporation's simulators have a high pressure xenon lamp whose reflected light is processed by an optical system to produce a uniform solar beam. Because of many different types of applications, the simulators must be adjustable to replicate many different areas of the solar radiation spectrum. Simulators are laboratory tools for such purposes as testing and calibrating solar cells, or other solar energy systems, testing dyes, paints and pigments, pharmaceuticals and cosmetic preparations, plant and animal studies, food and agriculture studies and oceanographic research.

  12. Multimagnetical simulations

    International Nuclear Information System (INIS)

    Hansmann, U.; Berg, B.A.; Florida State Univ., Tallahassee, FL; Neuhaus, T.

    1992-01-01

    We modified the recently proposed multicanonical MC algorithm for the case of a magnetic field driven order-order phase transition. We test this multimagnetic Monte Carlo algorithm for the D = 2 Ising model at β = 0.5 and simulate square lattices up to size 100 x 100. On these lattices with periodic boundary conditions it is possible to enhance the appearance of order-order interfaces during the simulation by many orders of magnitude as compared to the standard Monte Carlo simulation

  13. Kellele kuulub inimese elu? / Daniele Monticelli

    Index Scriptorium Estoniae

    Monticelli, Daniele, 1970-

    2010-01-01

    Eutanaasiaga seotud probleemide tuumikust - kellele kuulub inimelu, kellel on õigus otsustada inimese elu ja surma üle, kuidas hinnata enesetappu ning kuidas nüüdisaegse meditsiini areng neid küsimusi mõjutab. Teemat on vaadeldud mitte niivõrd (bio)eetilise, kuivõrd (bio)poliitilise probleemina

  14. 1536-IJBCS-Article-Daniel Chougourou

    African Journals Online (AJOL)

    KODJIO NORBERT

    pollinisateurs). Dans la littérature, il est connu que les insectes anthophiles en général et les abeilles (Apis mellifera) en particulier augmentent les rendements en fruits ou en graines de plusieurs espèces végétales, par la pollinisation des fleurs au cours de leurs activités de butinage (Philippe, 1991;. Tchuenguem Fohouo ...

  15. Open Science Interview mit Daniel Mietchen

    OpenAIRE

    Scheliga, Kaja

    2014-01-01

    This interview is part of a series of interviews on open science and digital scholarship conducted in 2013 with researchers from various backgrounds. For an analysis of the interviews see: Scheliga, Kaja and Sascha Friesike. 2014. “Putting open science into practice: A social dilemma?” First Monday. Volume 19, Number 9. DOI: http://dx.doi.org/10.5210/fm.v19i9.5381

  16. Daniel Kahneman: premio Nobel de Economia 2002

    Directory of Open Access Journals (Sweden)

    Hugo J. Contreras Sosa

    2003-01-01

    Full Text Available Se presenta una retrospección general del perfil del premio Nobel en economía 2002, además se realiza un análisis del llamado “desafío Kahneman-Tversky” y se confrontan los problemas de racionalidad limitada implícitos en el desafío K-T frente a la hipótesis dominante en la teoría económica estándar, acerca de que los agentes formulan expectativas racionales.

  17. Candidates dreaming of euro / Daniel Aronssohn

    Index Scriptorium Estoniae

    Aronssohn, Daniel

    2003-01-01

    Kesk-Euroopa postsotsialistlikud riigid soovivad võimalikult kiiresti Euroopa Liiduga ühinemise järel üle minna eurole. Euroopa Keskpank hoiatab, et see võib pidurdada nende riikide majanduskasvu

  18. Daniel Behailu Geberamanuel and Gemmeda Amelo Gurero ...

    African Journals Online (AJOL)

    1995-08-21

    Aug 21, 1995 ... The focus of this article is on peri-urban areas where transfer is made mainly ...... social interaction suggests the costs for monitoring and enforcement of share contract are small ... contract provides a vehicle to pool and share risks. ..... German Company to use GPS and GIS towards modern registration and ...

  19. A comparison between integral equation theory and molecular dynamics simulations of dense, flexible polymer liquids

    International Nuclear Information System (INIS)

    Curro, J.G.; Schweizer, K.S.; Grest, G.S.; Kremer, K.; Corporate Research Science Laboratory, Exxon Research and Engineering Company, Annandale, New Jersey 08801; Institut fur Festkorperforschung der Kernforschungsanlage Julich, D-5170 Julich, Federal Republic of Germany)

    1989-01-01

    Recently we (J.G.C. and K.S.S.) formulated a tractable ''reference interaction site model'' (RISM) integral equation theory of flexible polymer liquids. The purpose of this paper is to compare the results of the theory with recent molecular dynamics simulations (G.S.G. and K.K.) on dense chain liquids of degree of polymerization N=50 and 200. Specific comparisons were made between theory and simulation for the intramolecular structure factor ω(k) and the intermolecular radial distribution function g(r) in the liquid. In particular it was possible to independently test the assumptions inherent in the RISM theory and the additional ideality approximation that was made in the initial application of the theory. This comparison was accomplished by calculating the intermolecular g(r) using the simulated intramolecular structure factor, as well as, ω(k) derived from a freely jointed chain model.The RISM theory results, using the simulated ω(k), were found to be in excellent agreement, over all length scales, with the g(r) from molecular dynamics simulations. The theoretical predictions using the ''ideal'' intramolecular structure factor tended to underestimate g(r) near contact, indicating local intramolecular expansion of the chains. This local expansion can be incorporated into the theory self consistently by including the effects of the ''medium induced'' potential on the intramolecular structure

  20. ExNum 2016 International Symposium on Experimental Methods and Numerical Simulation in Engineering Sciences

    Directory of Open Access Journals (Sweden)

    Editorial Foreword

    2016-12-01

    Full Text Available ExNum 2016International Symposium on Experimental Methods and Numerical Simulation in Engineering SciencesSeptember 18th - 21st, 2016Conference Centre Liblice, Liblice, Czech RepublicOrganized by:Institute of Theoretical and Applied Mechanics ASCR, v.v.i.Faculty of Transportation Sciences CTU in PragueBergische Universität Wuppertal, Faculty 5 - Architecture and Civil EngineeringThe International Symposium on Experimental Methods and Numerical Simulation in Engineering Sciences continues the tradition of the Czech-German bilateral symposium founded by prof. Karl-Hans Laermann and prof. Stanislav Holý in 1985. In the following years, the symposium was extensively developed by prof. Josef Jíra. The symposium shall bring together mainly young scientists who are actively involved in experimental solid mechanics, theoretically and practically, in order to exchange experience, to report on the present state-of-art as well as on running research projects, to discuss due questions and problems and to promote the co-operation between individuals as well as between institutions. Therefore in the symposium discussions will play a highly significant role.Scientific Committeeprof. Ing. Ondřej Jiroušek, Ph.D. (Institute of Theoretical and Applied Mechanics ASCR, v.v.i.Univ.-Prof. Dr.-Ing.Dr.h.c.mult. Karl-Hans Laermann (Bergische Universität WuppertalProf. Dr.- Ing. Reinhard Harte (Bergische Universität Wuppertal, Faculty 5 - Architecture and Civil EngineeringProf. Dr.-Ing. Marc Gutermann (Hochschule BremenIng. Daniel Kytýř, Ph.D. (Czech Technical University in Prague, Faculty of Transportation SciencesIng. Petr Zlámal, Ph.D. (Institute of Theoretical and Applied Mechanics ASCR, v.v.i.Local Organizing CommitteeTomáš DoktorTomáš FílaNela KrčmářováPetr KoudelkaVeronika KoudelkováDaniel KytýřJan ŠleichrtPetr ZlámalEditorsDaniel KytýřPetr ZlámalScientific GuidanceOndřej Jiroušek

  1. Simulation optimisation

    International Nuclear Information System (INIS)

    Anon

    2010-01-01

    Over the past decade there has been a significant advance in flotation circuit optimisation through performance benchmarking using metallurgical modelling and steady-state computer simulation. This benchmarking includes traditional measures, such as grade and recovery, as well as new flotation measures, such as ore floatability, bubble surface area flux and froth recovery. To further this optimisation, Outotec has released its HSC Chemistry software with simulation modules. The flotation model developed by the AMIRA P9 Project, of which Outotec is a sponsor, is regarded by industry as the most suitable flotation model to use for circuit optimisation. This model incorporates ore floatability with flotation cell pulp and froth parameters, residence time, entrainment and water recovery. Outotec's HSC Sim enables you to simulate mineral processes in different levels, from comminution circuits with sizes and no composition, through to flotation processes with minerals by size by floatability components, to full processes with true particles with MLA data.

  2. Simulating Gravity

    Science.gov (United States)

    Pipinos, Savas

    2010-01-01

    This article describes one classroom activity in which the author simulates the Newtonian gravity, and employs the Euclidean Geometry with the use of new technologies (NT). The prerequisites for this activity were some knowledge of the formulae for a particle free fall in Physics and most certainly, a good understanding of the notion of similarity…

  3. Plant simulator

    International Nuclear Information System (INIS)

    Fukumitsu, Hiroyuki

    1998-01-01

    A simulator of a reactor plant of the present invention comprises a plurality of distributed computers, an indication processing section and an operation section. The simulation calculation functions of various kinds of plant models in the plant are shared by the plurality of computers. The indication processing section controls collection of data of the plant simulated by the computers and instructions of an operator. The operation section is operated by the operator and the results of operation are transmitted to the indication processing section, to conduct operation trainings and display the results of the simulation. Each of the computers and the indication processing portion are connected with each other by a network having a memory for common use. Data such as the results of calculation of plant models and various kinds of parameters of the plant required commonly to the calculators and the indication processing section are stored in the common memory, and adapted to be used by way of the network. (N.H.)

  4. BPU Simulator

    DEFF Research Database (Denmark)

    Rehr, Martin; Skovhede, Kenneth; Vinter, Brian

    2013-01-01

    in that process. Our goal is to support all execution platforms, and in this work we introduce the Bohrium Processing Unit, BPU, which will be the FPGA backend for Bohrium. The BPU is modeled as a PyCSP application, and the clear advantages of using CSP for simulating a new CPU is described. The current Py...

  5. Numerical simulation of the geometrical-optics reduction of CE2 and comparisons to quasilinear dynamics

    Science.gov (United States)

    Parker, Jeffrey B.

    2018-05-01

    Zonal flows have been observed to appear spontaneously from turbulence in a number of physical settings. A complete theory for their behavior is still lacking. Recently, a number of studies have investigated the dynamics of zonal flows using quasilinear (QL) theories and the statistical framework of a second-order cumulant expansion (CE2). A geometrical-optics (GO) reduction of CE2, derived under an assumption of separation of scales between the fluctuations and the zonal flow, is studied here numerically. The reduced model, CE2-GO, has a similar phase-space mathematical structure to the traditional wave-kinetic equation, but that wave-kinetic equation has been shown to fail to preserve enstrophy conservation and to exhibit an ultraviolet catastrophe. CE2-GO, in contrast, preserves nonlinear conservation of both energy and enstrophy. We show here how to retain these conservation properties in a pseudospectral simulation of CE2-GO. We then present nonlinear simulations of CE2-GO and compare with direct simulations of quasilinear (QL) dynamics. We find that CE2-GO retains some similarities to QL. The partitioning of energy that resides in the zonal flow is in good quantitative agreement between CE2-GO and QL. On the other hand, the length scale of the zonal flow does not follow the same qualitative trend in the two models. Overall, these simulations indicate that CE2-GO provides a simpler and more tractable statistical paradigm than CE2, but CE2-GO is missing important physics.

  6. Fusion Simulation Program Execution Plan

    International Nuclear Information System (INIS)

    Brooks, Jeffrey

    2011-01-01

    The overall science goal of the FSP is to develop predictive simulation capability for magnetically confined fusion plasmas at an unprecedented level of integration and fidelity. This will directly support and enable effective U.S. participation in research related to the International Thermonuclear Experimental Reactor (ITER) and the overall mission of delivering practical fusion energy. The FSP will address a rich set of scientific issues together with experimental programs, producing validated integrated physics results. This is very well aligned with the mission of the ITER Organization to coordinate with its members the integrated modeling and control of fusion plasmas, including benchmarking and validation activities. [1]. Initial FSP research will focus on two critical areas: 1) the plasma edge and 2) whole device modeling including disruption avoidance. The first of these problems involves the narrow plasma boundary layer and its complex interactions with the plasma core and the surrounding material wall. The second requires development of a computationally tractable, but comprehensive model that describes all equilibrium and dynamic processes at a sufficient level of detail to provide useful prediction of the temporal evolution of fusion plasma experiments. The initial driver for the whole device model (WDM) will be prediction and avoidance of discharge-terminating disruptions, especially at high performance, which are a critical impediment to successful operation of machines like ITER. If disruptions prove unable to be avoided, their associated dynamics and effects will be addressed in the next phase of the FSP. The FSP plan targets the needed modeling capabilities by developing Integrated Science Applications (ISAs) specific to their needs. The Pedestal-Boundary model will include boundary magnetic topology, cross-field transport of multi-species plasmas, parallel plasma transport, neutral transport, atomic physics and interactions with the plasma wall

  7. Quantum simulation of transverse Ising models with Rydberg atoms

    Science.gov (United States)

    Schauss, Peter

    2018-04-01

    Quantum Ising models are canonical models for the study of quantum phase transitions (Sachdev 1999 Quantum Phase Transitions (Cambridge: Cambridge University Press)) and are the underlying concept for many analogue quantum computing and quantum annealing ideas (Tanaka et al Quantum Spin Glasses, Annealing and Computation (Cambridge: Cambridge University Press)). Here we focus on the implementation of finite-range interacting Ising spin models, which are barely tractable numerically. Recent experiments with cold atoms have reached the interaction-dominated regime in quantum Ising magnets via optical coupling of trapped neutral atoms to Rydberg states. This approach allows for the tunability of all relevant terms in an Ising spin Hamiltonian with 1/{r}6 interactions in transverse and longitudinal fields. This review summarizes the recent progress of these implementations in Rydberg lattices with site-resolved detection. Strong correlations in quantum Ising models have been observed in several experiments, starting from a single excitation in the superatom regime up to the point of crystallization. The rapid progress in this field makes spin systems based on Rydberg atoms a promising platform for quantum simulation because of the unmatched flexibility and strength of interactions combined with high control and good isolation from the environment.

  8. Simulating events

    Energy Technology Data Exchange (ETDEWEB)

    Ferretti, C; Bruzzone, L [Techint Italimpianti, Milan (Italy)

    2000-06-01

    The Petacalco Marine terminal on the Pacific coast in the harbour of Lazaro Carclenas (Michoacan) in Mexico, provides coal to the thermoelectric power plant at Pdte Plutarco Elias Calles in the port area. The plant is being converted from oil to burn coal to generate 2100 MW of power. The article describes the layout of the terminal and equipment employed in the unloading, coal stacking, coal handling areas and the receiving area at the power plant. The contractor Techint Italimpianti has developed a software system, MHATIS, for marine terminal management which is nearly complete. The discrete event simulator with its graphic interface provides a real-type decision support system for simulating changes to the terminal operations and evaluating impacts. The article describes how MHATIS is used. 7 figs.

  9. Real-Time Million-Synapse Simulation of Rat Barrel Cortex

    Directory of Open Access Journals (Sweden)

    Thomas eSharp

    2014-05-01

    Full Text Available Simulations of neural circuits are bounded in scale and speed by available computing resources, and particularly by the differences in parallelism and communication patterns between the brain and high-performance computers. SpiNNaker is a computer architecture designed to address this problem by emulating the structure and function of neural tissue, using very many low-power processors and an interprocessor communication mechanism inspired by axonal arbors. Here we demonstrate that thousand-processor SpiNNaker prototypes can simulate models of the rodent barrel system comprising fifty thousand neurons and fifty million synapses. We use the PyNN library to specify models, and the intrinsic features of Python to control experimental procedures and analysis. The models reproduce known thalamocortical response transformations, exhibit known, balanced dynamics of excitation and inhibition, and show a spatiotemporal spread of activity though the superficial cortical layers. These demonstrations are a significant step towards tractable simulations of entire cortical areas on the million-processor SpiNNaker machines in development.

  10. Real-time million-synapse simulation of rat barrel cortex.

    Science.gov (United States)

    Sharp, Thomas; Petersen, Rasmus; Furber, Steve

    2014-01-01

    Simulations of neural circuits are bounded in scale and speed by available computing resources, and particularly by the differences in parallelism and communication patterns between the brain and high-performance computers. SpiNNaker is a computer architecture designed to address this problem by emulating the structure and function of neural tissue, using very many low-power processors and an interprocessor communication mechanism inspired by axonal arbors. Here we demonstrate that thousand-processor SpiNNaker prototypes can simulate models of the rodent barrel system comprising 50,000 neurons and 50 million synapses. We use the PyNN library to specify models, and the intrinsic features of Python to control experimental procedures and analysis. The models reproduce known thalamocortical response transformations, exhibit known, balanced dynamics of excitation and inhibition, and show a spatiotemporal spread of activity though the superficial cortical layers. These demonstrations are a significant step toward tractable simulations of entire cortical areas on the million-processor SpiNNaker machines in development.

  11. Neuromechanical simulation

    Directory of Open Access Journals (Sweden)

    Donald H Edwards

    2010-07-01

    Full Text Available The importance of the interaction between the body and the brain for the control of behavior has been recognized in recent years with the advent of neuromechanics, a field in which the coupling between neural and biomechanical processes is an explicit focus. A major tool used in neuromechanics is simulation, which connects computational models of neural circuits to models of an animal’s body situated in a virtual physical world. This connection closes the feedback loop that links the brain, the body, and the world through sensory stimuli, muscle contractions and body movement. Neuromechanical simulations enable investigators to explore the dynamical relationships between the brain, the body, and the world in ways that are difficult or impossible through experiment alone. Studies in a variety of animals have permitted the analysis of extremely complex and dynamic neuromechanical systems, they have demonstrated that the nervous system functions synergistically with the mechanical properties of the body, they have examined hypotheses that are difficult to test experimentally, and they have explored the role of sensory feedback in controlling complex mechanical systems with many degrees of freedom. Each of these studies confronts a common set of questions: (i how to abstract key features of the body, the world and the CNS in a useful model, (ii how to ground model parameters in experimental reality, (iii how to optimize the model and identify points of sensitivity and insensitivity, and (iv how to share neuromechanical models for examination, testing, and extension by others.

  12. Daniel Pipes: saabuvad kriisid näitavad Euroopa arengusuunda / Daniel Pipes ; interv. Iivi Anna Masso

    Index Scriptorium Estoniae

    Pipes, Daniel

    2008-01-01

    Lähis-Ida uurija vastab küsimustele, mis puudutavad Iisraeli mainet, Hamasi ja Fatahi konflikti, Iisraeli ja palestiinlaste konflikti, islami ja islamismi erinevust, islamofoobia mõistet, tema ennustust islami ja Euroopa suhete kohta, sõnavabadust, vaenlast terrorismivastases sõjas, uuskonservatiivsuse mõistet, Euroopa Liitu, USA tulevaste presidendivalimiste tulemuse mõju maailmale. Uurija on seisukohal, et Euroopa ja seal elavate muslimite vahelistes suhetes kriisi ärahoidmiseks peaks Euroopa muslimid tõeliselt integreerima

  13. Description and validation of the Simple, Efficient, Dynamic, Global, Ecological Simulator (SEDGES v.1.0)

    Science.gov (United States)

    Paiewonsky, Pablo; Elison Timm, Oliver

    2018-03-01

    In this paper, we present a simple dynamic global vegetation model whose primary intended use is auxiliary to the land-atmosphere coupling scheme of a climate model, particularly one of intermediate complexity. The model simulates and provides important ecological-only variables but also some hydrological and surface energy variables that are typically either simulated by land surface schemes or else used as boundary data input for these schemes. The model formulations and their derivations are presented here, in detail. The model includes some realistic and useful features for its level of complexity, including a photosynthetic dependency on light, full coupling of photosynthesis and transpiration through an interactive canopy resistance, and a soil organic carbon dependence for bare-soil albedo. We evaluate the model's performance by running it as part of a simple land surface scheme that is driven by reanalysis data. The evaluation against observational data includes net primary productivity, leaf area index, surface albedo, and diagnosed variables relevant for the closure of the hydrological cycle. In this setup, we find that the model gives an adequate to good simulation of basic large-scale ecological and hydrological variables. Of the variables analyzed in this paper, gross primary productivity is particularly well simulated. The results also reveal the current limitations of the model. The most significant deficiency is the excessive simulation of evapotranspiration in mid- to high northern latitudes during their winter to spring transition. The model has a relative advantage in situations that require some combination of computational efficiency, model transparency and tractability, and the simulation of the large-scale vegetation and land surface characteristics under non-present-day conditions.

  14. Regional Community Climate Simulations with variable resolution meshes in the Community Earth System Model

    Science.gov (United States)

    Zarzycki, C. M.; Gettelman, A.; Callaghan, P.

    2017-12-01

    Accurately predicting weather extremes such as precipitation (floods and droughts) and temperature (heat waves) requires high resolution to resolve mesoscale dynamics and topography at horizontal scales of 10-30km. Simulating such resolutions globally for climate scales (years to decades) remains computationally impractical. Simulating only a small region of the planet is more tractable at these scales for climate applications. This work describes global simulations using variable-resolution static meshes with multiple dynamical cores that target the continental United States using developmental versions of the Community Earth System Model version 2 (CESM2). CESM2 is tested in idealized, aquaplanet and full physics configurations to evaluate variable mesh simulations against uniform high and uniform low resolution simulations at resolutions down to 15km. Different physical parameterization suites are also evaluated to gauge their sensitivity to resolution. Idealized variable-resolution mesh cases compare well to high resolution tests. More recent versions of the atmospheric physics, including cloud schemes for CESM2, are more stable with respect to changes in horizontal resolution. Most of the sensitivity is due to sensitivity to timestep and interactions between deep convection and large scale condensation, expected from the closure methods. The resulting full physics model produces a comparable climate to the global low resolution mesh and similar high frequency statistics in the high resolution region. Some biases are reduced (orographic precipitation in the western United States), but biases do not necessarily go away at high resolution (e.g. summertime JJA surface Temp). The simulations are able to reproduce uniform high resolution results, making them an effective tool for regional climate studies and are available in CESM2.

  15. Faster simulated laparoscopic cholecystectomy with haptic feedback technology

    Directory of Open Access Journals (Sweden)

    Yiasemidou M

    2011-10-01

    Full Text Available Marina Yiasemidou, Daniel Glassman, Peter Vasas, Sarit Badiani, Bijendra Patel Barts and the London School of Medicine and Dentistry, Department of Upper GI Surgery, Barts and The Royal London Hospital, London, UK Background: Virtual reality simulators have been gradually introduced into surgical training. One of the enhanced features of the latest virtual simulators is haptic feedback. The usefulness of haptic feedback technology has been a matter of controversy in recent years. Previous studies have assessed the importance of haptic feedback in executing parts of a procedure or basic tasks, such as tissue grasping. The aim of this study was to assess the role of haptic feedback within a structured educational environment, based on the performance of junior surgical trainees after undergoing substantial simulation training. Methods: Novices, whose performance was assessed after several repetitions of a task, were recruited for this study. The performance of senior house officers at the last stage of a validated laparoscopic cholecystectomy curriculum was assessed. Nine senior house officers completed a validated laparoscopic cholecystectomy curriculum on a haptic simulator and nine on a nonhaptic simulator. Performance in terms of mean total time, mean total number of movements, and mean total path length at the last level of the validated curriculum (full procedure of laparoscopic cholecystectomy was compared between the two groups. Results: Haptic feedback significantly reduced the time required to complete the full procedure of laparoscopic cholecystectomy (mean total time for nonhaptic machine 608.83 seconds, mean total time for haptic machine 553.27 seconds; P = 0.019 while maintaining safety standards similar to those of the nonhaptic machine (mean total number of movements: nonhaptic machine 583.74, haptic machine 603.93, P = 0.145, mean total path length: for nonhaptic machine 1207.37 cm, for haptic machine 1262.36 cm, P = 0

  16. Uncertainty analysis of NDA waste measurements using computer simulations

    International Nuclear Information System (INIS)

    Blackwood, L.G.; Harker, Y.D.; Yoon, W.Y.; Meachum, T.R.

    2000-01-01

    Uncertainty assessments for nondestructive radioassay (NDA) systems for nuclear waste are complicated by factors extraneous to the measurement systems themselves. Most notably, characteristics of the waste matrix (e.g., homogeneity) and radioactive source material (e.g., particle size distribution) can have great effects on measured mass values. Under these circumstances, characterizing the waste population is as important as understanding the measurement system in obtaining realistic uncertainty values. When extraneous waste characteristics affect measurement results, the uncertainty results are waste-type specific. The goal becomes to assess the expected bias and precision for the measurement of a randomly selected item from the waste population of interest. Standard propagation-of-errors methods for uncertainty analysis can be very difficult to implement in the presence of significant extraneous effects on the measurement system. An alternative approach that naturally includes the extraneous effects is as follows: (1) Draw a random sample of items from the population of interest; (2) Measure the items using the NDA system of interest; (3) Establish the true quantity being measured using a gold standard technique; and (4) Estimate bias by deriving a statistical regression model comparing the measurements on the system of interest to the gold standard values; similar regression techniques for modeling the standard deviation of the difference values gives the estimated precision. Actual implementation of this method is often impractical. For example, a true gold standard confirmation measurement may not exist. A more tractable implementation is obtained by developing numerical models for both the waste material and the measurement system. A random sample of simulated waste containers generated by the waste population model serves as input to the measurement system model. This approach has been developed and successfully applied to assessing the quantity of

  17. Long-time analytic approximation of large stochastic oscillators: Simulation, analysis and inference.

    Directory of Open Access Journals (Sweden)

    Giorgos Minas

    2017-07-01

    Full Text Available In order to analyse large complex stochastic dynamical models such as those studied in systems biology there is currently a great need for both analytical tools and also algorithms for accurate and fast simulation and estimation. We present a new stochastic approximation of biological oscillators that addresses these needs. Our method, called phase-corrected LNA (pcLNA overcomes the main limitations of the standard Linear Noise Approximation (LNA to remain uniformly accurate for long times, still maintaining the speed and analytically tractability of the LNA. As part of this, we develop analytical expressions for key probability distributions and associated quantities, such as the Fisher Information Matrix and Kullback-Leibler divergence and we introduce a new approach to system-global sensitivity analysis. We also present algorithms for statistical inference and for long-term simulation of oscillating systems that are shown to be as accurate but much faster than leaping algorithms and algorithms for integration of diffusion equations. Stochastic versions of published models of the circadian clock and NF-κB system are used to illustrate our results.

  18. Evaluating operator performance on full-scope simulators: A pragmatic approach to an intractable measurement problem

    International Nuclear Information System (INIS)

    Fuld, R.

    1989-01-01

    Industry trends toward full-scope, plant-referenced control room simulators have accelerated. The cost of such training is high, but the cost of training ineffectiveness is even higher if it permits serious errors or operator disqualification to occur. Effective measures of operator performance are needed, but the complexity of the task environment and the many aspects of and requirements for operator performance conspire to make such measurement a challenging problem. Combustion Engineering (C-E) Owners' Group task No. 572 was undertaken to develop a tractable and effective methodology for evaluating team performance in a requalification context on full-scope simulator scenarios. The following concepts were pursued as design goals for the method: 1. validity; 2. sensitivity; 3. reliability; 4. usability. In addition, the resulting approach was to meet the requirements of ES-601, Implementation Guidance of the NRC for Administration of Requalifying Exams. A survey of existing evaluation tools and techniques was made to determine the strengths and weaknesses of each. Based on those findings, a multimethod approach was developed drawing on the combined strengths of several general methods. The paper discusses procedural milestones, comments as subjective ratings, failure criteria, and tracked plant parameters

  19. Energy-weighted dynamical scattering simulations of electron diffraction modalities in the scanning electron microscope.

    Science.gov (United States)

    Pascal, Elena; Singh, Saransh; Callahan, Patrick G; Hourahine, Ben; Trager-Cowan, Carol; Graef, Marc De

    2018-04-01

    Transmission Kikuchi diffraction (TKD) has been gaining momentum as a high resolution alternative to electron back-scattered diffraction (EBSD), adding to the existing electron diffraction modalities in the scanning electron microscope (SEM). The image simulation of any of these measurement techniques requires an energy dependent diffraction model for which, in turn, knowledge of electron energies and diffraction distances distributions is required. We identify the sample-detector geometry and the effect of inelastic events on the diffracting electron beam as the important factors to be considered when predicting these distributions. However, tractable models taking into account inelastic scattering explicitly are lacking. In this study, we expand the Monte Carlo (MC) energy-weighting dynamical simulations models used for EBSD [1] and ECP [2] to the TKD case. We show that the foil thickness in TKD can be used as a means of energy filtering and compare band sharpness in the different modalities. The current model is shown to correctly predict TKD patterns and, through the dictionary indexing approach, to produce higher quality indexed TKD maps than conventional Hough transform approach, especially close to grain boundaries. Copyright © 2018 The Authors. Published by Elsevier B.V. All rights reserved.

  20. Impulsive response of an automatic transmission system with multiple clearances: Formulation, simulation and experiment

    Science.gov (United States)

    Crowther, Ashley R.; Singh, Rajendra; Zhang, Nong; Chapman, Chris

    2007-10-01

    Impulsive responses in geared systems with multiple clearances are studied when the mean torque excitation and system load change abruptly, with application to a vehicle driveline with an automatic transmission. First, torsional lumped-mass models of the planetary and differential gear sets are formulated using matrix elements. The model is then reduced to address tractable nonlinear problems while successfully retaining the main modes of interest. Second, numerical simulations for the nonlinear model are performed for transient conditions and a typical driving situation that induces an impulsive behaviour simulated. However, initial conditions and excitation and load profiles have to be carefully defined before the model can be numerically solved. It is shown that the impacts within the planetary or differential gears may occur under combinations of engine, braking and vehicle load transients. Our analysis shows that the shaping of the engine transient by the torque converter before reaching the clearance locations is more critical. Third, a free vibration experiment is developed for an analogous driveline with multiple clearances and three experiments that excite different response regimes have been carried out. Good correlations validate the proposed methodology.

  1. Force and Stress along Simulated Dissociation Pathways of Cucurbituril-Guest Systems.

    Science.gov (United States)

    Velez-Vega, Camilo; Gilson, Michael K

    2012-03-13

    The field of host-guest chemistry provides computationally tractable yet informative model systems for biomolecular recognition. We applied molecular dynamics simulations to study the forces and mechanical stresses associated with forced dissociation of aqueous cucurbituril-guest complexes with high binding affinities. First, the unbinding transitions were modeled with constant velocity pulling (steered dynamics) and a soft spring constant, to model atomic force microscopy (AFM) experiments. The computed length-force profiles yield rupture forces in good agreement with available measurements. We also used steered dynamics with high spring constants to generate paths characterized by a tight control over the specified pulling distance; these paths were then equilibrated via umbrella sampling simulations and used to compute time-averaged mechanical stresses along the dissociation pathways. The stress calculations proved to be informative regarding the key interactions determining the length-force profiles and rupture forces. In particular, the unbinding transition of one complex is found to be a stepwise process, which is initially dominated by electrostatic interactions between the guest's ammoniums and the host's carbonyl groups, and subsequently limited by the extraction of the guest's bulky bicyclooctane moiety; the latter step requires some bond stretching at the cucurbituril's extraction portal. Conversely, the dissociation of a second complex with a more slender guest is mainly driven by successive electrostatic interactions between the different guest's ammoniums and the host's carbonyl groups. The calculations also provide information on the origins of thermodynamic irreversibilities in these forced dissociation processes.

  2. Multibillion-atom Molecular Dynamics Simulations of Plasticity, Spall, and Ejecta

    Science.gov (United States)

    Germann, Timothy C.

    2007-06-01

    Modern supercomputing platforms, such as the IBM BlueGene/L at Lawrence Livermore National Laboratory and the Roadrunner hybrid supercomputer being built at Los Alamos National Laboratory, are enabling large-scale classical molecular dynamics simulations of phenomena that were unthinkable just a few years ago. Using either the embedded atom method (EAM) description of simple (close-packed) metals, or modified EAM (MEAM) models of more complex solids and alloys with mixed covalent and metallic character, simulations containing billions to trillions of atoms are now practical, reaching volumes in excess of a cubic micron. In order to obtain any new physical insights, however, it is equally important that the analysis of such systems be tractable. This is in fact possible, in large part due to our highly efficient parallel visualization code, which enables the rendering of atomic spheres, Eulerian cells, and other geometric objects in a matter of minutes, even for tens of thousands of processors and billions of atoms. After briefly describing the BlueGene/L and Roadrunner architectures, and the code optimization strategies that were employed, results obtained thus far on BlueGene/L will be reviewed, including: (1) shock compression and release of a defective EAM Cu sample, illustrating the plastic deformation accompanying void collapse as well as the subsequent void growth and linkup upon release; (2) solid-solid martensitic phase transition in shock-compressed MEAM Ga; and (3) Rayleigh-Taylor fluid instability modeled using large-scale direct simulation Monte Carlo (DSMC) simulations. I will also describe our initial experiences utilizing Cell Broadband Engine processors (developed for the Sony PlayStation 3), and planned simulation studies of ejecta and spall failure in polycrystalline metals that will be carried out when the full Petaflop Opteron/Cell Roadrunner supercomputer is assembled in mid-2008.

  3. Testing simulation and structural models with applications to energy demand

    Science.gov (United States)

    Wolff, Hendrik

    2007-12-01

    This dissertation deals with energy demand and consists of two parts. Part one proposes a unified econometric framework for modeling energy demand and examples illustrate the benefits of the technique by estimating the elasticity of substitution between energy and capital. Part two assesses the energy conservation policy of Daylight Saving Time and empirically tests the performance of electricity simulation. In particular, the chapter "Imposing Monotonicity and Curvature on Flexible Functional Forms" proposes an estimator for inference using structural models derived from economic theory. This is motivated by the fact that in many areas of economic analysis theory restricts the shape as well as other characteristics of functions used to represent economic constructs. Specific contributions are (a) to increase the computational speed and tractability of imposing regularity conditions, (b) to provide regularity preserving point estimates, (c) to avoid biases existent in previous applications, and (d) to illustrate the benefits of our approach via numerical simulation results. The chapter "Can We Close the Gap between the Empirical Model and Economic Theory" discusses the more fundamental question of whether the imposition of a particular theory to a dataset is justified. I propose a hypothesis test to examine whether the estimated empirical model is consistent with the assumed economic theory. Although the proposed methodology could be applied to a wide set of economic models, this is particularly relevant for estimating policy parameters that affect energy markets. This is demonstrated by estimating the Slutsky matrix and the elasticity of substitution between energy and capital, which are crucial parameters used in computable general equilibrium models analyzing energy demand and the impacts of environmental regulations. Using the Berndt and Wood dataset, I find that capital and energy are complements and that the data are significantly consistent with duality

  4. LOADING SIMULATION PROGRAM C

    Science.gov (United States)

    LSPC is the Loading Simulation Program in C++, a watershed modeling system that includes streamlined Hydrologic Simulation Program Fortran (HSPF) algorithms for simulating hydrology, sediment, and general water quality

  5. Manned Flight Simulator (MFS)

    Data.gov (United States)

    Federal Laboratory Consortium — The Aircraft Simulation Division, home to the Manned Flight Simulator (MFS), provides real-time, high fidelity, hardware-in-the-loop flight simulation capabilities...

  6. Advanced Simulation Center

    Data.gov (United States)

    Federal Laboratory Consortium — The Advanced Simulation Center consists of 10 individual facilities which provide missile and submunition hardware-in-the-loop simulation capabilities. The following...

  7. Efficient simulation and likelihood methods for non-neutral multi-allele models.

    Science.gov (United States)

    Joyce, Paul; Genz, Alan; Buzbas, Erkan Ozge

    2012-06-01

    Throughout the 1980s, Simon Tavaré made numerous significant contributions to population genetics theory. As genetic data, in particular DNA sequence, became more readily available, a need to connect population-genetic models to data became the central issue. The seminal work of Griffiths and Tavaré (1994a , 1994b , 1994c) was among the first to develop a likelihood method to estimate the population-genetic parameters using full DNA sequences. Now, we are in the genomics era where methods need to scale-up to handle massive data sets, and Tavaré has led the way to new approaches. However, performing statistical inference under non-neutral models has proved elusive. In tribute to Simon Tavaré, we present an article in spirit of his work that provides a computationally tractable method for simulating and analyzing data under a class of non-neutral population-genetic models. Computational methods for approximating likelihood functions and generating samples under a class of allele-frequency based non-neutral parent-independent mutation models were proposed by Donnelly, Nordborg, and Joyce (DNJ) (Donnelly et al., 2001). DNJ (2001) simulated samples of allele frequencies from non-neutral models using neutral models as auxiliary distribution in a rejection algorithm. However, patterns of allele frequencies produced by neutral models are dissimilar to patterns of allele frequencies produced by non-neutral models, making the rejection method inefficient. For example, in some cases the methods in DNJ (2001) require 10(9) rejections before a sample from the non-neutral model is accepted. Our method simulates samples directly from the distribution of non-neutral models, making simulation methods a practical tool to study the behavior of the likelihood and to perform inference on the strength of selection.

  8. COCOA: Simulating Observations of Star Cluster Simulations

    Science.gov (United States)

    Askar, Abbas; Giersz, Mirek; Pych, Wojciech; Dalessandro, Emanuele

    2017-03-01

    COCOA (Cluster simulatiOn Comparison with ObservAtions) creates idealized mock photometric observations using results from numerical simulations of star cluster evolution. COCOA is able to present the output of realistic numerical simulations of star clusters carried out using Monte Carlo or N-body codes in a way that is useful for direct comparison with photometric observations. The code can simulate optical observations from simulation snapshots in which positions and magnitudes of objects are known. The parameters for simulating the observations can be adjusted to mimic telescopes of various sizes. COCOA also has a photometry pipeline that can use standalone versions of DAOPHOT (ascl:1104.011) and ALLSTAR to produce photometric catalogs for all observed stars.

  9. Parallel discrete event simulation

    NARCIS (Netherlands)

    Overeinder, B.J.; Hertzberger, L.O.; Sloot, P.M.A.; Withagen, W.J.

    1991-01-01

    In simulating applications for execution on specific computing systems, the simulation performance figures must be known in a short period of time. One basic approach to the problem of reducing the required simulation time is the exploitation of parallelism. However, in parallelizing the simulation

  10. Combine Harvester Simulator

    DEFF Research Database (Denmark)

    Vilmann, Ole; Sørlie, James Arnold

    1999-01-01

    A simulator for training pilots in the operation of a modern high-tech combine harvester is presented. The new simulator application is based on DMI´s well-known DMS maritime simulator architecture. Two major challenges have been encountered in the development of the simulator: 1) interfacing the...

  11. Business process simulation

    NARCIS (Netherlands)

    Aalst, van der W.M.P.; Nakatumba, J.; Rozinat, A.; Russell, N.C.; Brocke, vom J.; Rosemann, M.

    2010-01-01

    Although simulation is typically considered as relevant and highly applicable, in reality the use of simulation is limited. Many organizations have tried to use simulation to analyze their business processes at some stage. However, few are using simulation in a structured and effective manner. This

  12. The ATLAS Simulation Infrastructure

    CERN Document Server

    Aad, G.; Abdallah, J.; Abdelalim, A.A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; Abramowicz, H.; Abreu, H.; Acharya, B.S.; Adams, D.L.; Addy, T.N.; Adelman, J.; Adorisio, C.; Adragna, P.; Adye, T.; Aefsky, S.; Aguilar-Saavedra, J.A.; Aharrouche, M.; Ahlen, S.P.; Ahles, F.; Ahmad, A.; Ahmed, H.; Ahsan, M.; Aielli, G.; Akdogan, T.; Akesson, T.P.A.; Akimoto, G.; Akimov, A.V.; Aktas, A.; Alam, M.S.; Alam, M.A.; Albrand, S.; Aleksa, M.; Aleksandrov, I.N.; Alexa, C.; Alexander, G.; Alexandre, G.; Alexopoulos, T.; Alhroob, M.; Aliev, M.; Alimonti, G.; Alison, J.; Aliyev, M.; Allport, P.P.; Allwood-Spiers, S.E.; Almond, J.; Aloisio, A.; Alon, R.; Alonso, A.; Alviggi, M.G.; Amako, K.; Amelung, C.; Amorim, A.; Amoros, G.; Amram, N.; Anastopoulos, C.; Andeen, T.; Anders, C.F.; Anderson, K.J.; Andreazza, A.; Andrei, V.; Anduaga, X.S.; Angerami, A.; Anghinolfi, F.; Anjos, N.; Annovi, A.; Antonaki, A.; Antonelli, M.; Antonelli, S.; Antos, J.; Antunovic, B.; Anulli, F.; Aoun, S.; Arabidze, G.; Aracena, I.; Arai, Y.; Arce, A.T.H.; Archambault, J.P.; Arfaoui, S.; Arguin, J-F.; Argyropoulos, T.; Arik, M.; Armbruster, A.J.; Arnaez, O.; Arnault, C.; Artamonov, A.; Arutinov, D.; Asai, M.; Asai, S.; Asfandiyarov, R.; Ask, S.; Asman, B.; Asner, D.; Asquith, L.; Assamagan, K.; Astbury, A.; Astvatsatourov, A.; Atoian, G.; Auerbach, B.; Augsten, K.; Aurousseau, M.; Austin, N.; Avolio, G.; Avramidou, R.; Axen, D.; Ay, C.; Azuelos, G.; Azuma, Y.; Baak, M.A.; Bach, A.M.; Bachacou, H.; Bachas, K.; Backes, M.; Badescu, E.; Bagnaia, P.; Bai, Y.; Bain, T.; Baines, J.T.; Baker, O.K.; Baker, M.D.; Baker, S; Baltasar Dos Santos Pedrosa, F.; Banas, E.; Banerjee, P.; Banerjee, S.; Banfi, D.; Bangert, A.; Bansal, V.; Baranov, S.P.; Baranov, S.; Barashkou, A.; Barber, T.; Barberio, E.L.; Barberis, D.; Barbero, M.; Bardin, D.Y.; Barillari, T.; Barisonzi, M.; Barklow, T.; Barlow, N.; Barnett, B.M.; Barnett, R.M.; Baroncelli, A.; Barr, A.J.; Barreiro, F.; Barreiro Guimaraes da Costa, J.; Barrillon, P.; Bartoldus, R.; Bartsch, D.; Bates, R.L.; Batkova, L.; Batley, J.R.; Battaglia, A.; Battistin, M.; Bauer, F.; Bawa, H.S.; Bazalova, M.; Beare, B.; Beau, T.; Beauchemin, P.H.; Beccherle, R.; Becerici, N.; Bechtle, P.; Beck, G.A.; Beck, H.P.; Beckingham, M.; Becks, K.H.; Beddall, A.J.; Beddall, A.; Bednyakov, V.A.; Bee, C.; Begel, M.; Behar Harpaz, S.; Behera, P.K.; Beimforde, M.; Belanger-Champagne, C.; Bell, P.J.; Bell, W.H.; Bella, G.; Bellagamba, L.; Bellina, F.; Bellomo, M.; Belloni, A.; Belotskiy, K.; Beltramello, O.; Ben Ami, S.; Benary, O.; Benchekroun, D.; Bendel, M.; Benedict, B.H.; Benekos, N.; Benhammou, Y.; Benincasa, G.P.; Benjamin, D.P.; Benoit, M.; Bensinger, J.R.; Benslama, K.; Bentvelsen, S.; Beretta, M.; Berge, D.; Bergeaas Kuutmann, E.; Berger, N.; Berghaus, F.; Berglund, E.; Beringer, J.; Bernat, P.; Bernhard, R.; Bernius, C.; Berry, T.; Bertin, A.; Besana, M.I.; Besson, N.; Bethke, S.; Bianchi, R.M.; Bianco, M.; Biebel, O.; Biesiada, J.; Biglietti, M.; Bilokon, H.; Bindi, M.; 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Bruneliere, R.; Brunet, S.; Bruni, A.; Bruni, G.; Bruschi, M.; Bucci, F.; Buchanan, J.; Buchholz, P.; Buckley, A.G.; Budagov, I.A.; Budick, B.; Buscher, V.; Bugge, L.; Bulekov, O.; Bunse, M.; Buran, T.; Burckhart, H.; Burdin, S.; Burgess, T.; Burke, S.; Busato, E.; Bussey, P.; Buszello, C.P.; Butin, F.; Butler, B.; Butler, J.M.; Buttar, C.M.; Butterworth, J.M.; Byatt, T.; Caballero, J.; Cabrera Urban, S.; Caforio, D.; Cakir, O.; Calafiura, P.; Calderini, G.; Calfayan, P.; Calkins, R.; Caloba, L.P.; Calvet, D.; Camarri, P.; Cameron, D.; Campana, S.; Campanelli, M.; Canale, V.; Canelli, F.; Canepa, A.; Cantero, J.; Capasso, L.; Capeans Garrido, M.D.M.; Caprini, I.; Caprini, M.; Capua, M.; Caputo, R.; Caramarcu, C.; Cardarelli, R.; Carli, T.; Carlino, G.; Carminati, L.; Caron, B.; Caron, S.; Carrillo Montoya, G.D.; Carron Montero, S.; Carter, A.A.; Carter, J.R.; Carvalho, J.; Casadei, D.; Casado, M.P.; Cascella, M.; Castaneda Hernandez, A.M.; Castaneda-Miranda, E.; Castillo Gimenez, V.; Castro, N.F.; 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Coadou, Y.; Cobal, M.; Coccaro, A.; Cochran, J.; Coggeshall, J.; Cogneras, E.; Colijn, A.P.; Collard, C.; Collins, N.J.; Collins-Tooth, C.; Collot, J.; Colon, G.; Conde Muino, P.; Coniavitis, E.; Consonni, M.; Constantinescu, S.; Conta, C.; Conventi, F.; Cooke, M.; Cooper, B.D.; Cooper-Sarkar, A.M.; Cooper-Smith, N.J.; Copic, K.; Cornelissen, T.; Corradi, M.; Corriveau, F.; Corso-Radu, A.; Cortes-Gonzalez, A.; Cortiana, G.; Costa, G.; Costa, M.J.; Costanzo, D.; Costin, T.; Cote, D.; Coura Torres, R.; Courneyea, L.; Cowan, G.; Cowden, C.; Cox, B.E.; Cranmer, K.; Cranshaw, J.; Cristinziani, M.; Crosetti, G.; Crupi, R.; Crepe-Renaudin, S.; Cuenca Almenar, C.; Cuhadar Donszelmann, T.; Curatolo, M.; Curtis, C.J.; Cwetanski, P.; Czyczula, Z.; D'Auria, S.; D'Onofrio, M.; D'Orazio, A.; Da Via, C; Dabrowski, W.; Dai, T.; Dallapiccola, C.; Dallison, S.J.; Daly, C.H.; Dam, M.; Danielsson, H.O.; Dannheim, D.; Dao, V.; Darbo, G.; Darlea, G.L.; Davey, W.; Davidek, T.; Davidson, N.; Davidson, R.; Davies, M.; 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Dittus, F.; Djama, F.; Djilkibaev, R.; Djobava, T.; do Vale, M.A.B.; Do Valle Wemans, A.; Doan, T.K.O.; Dobos, D.; Dobson, E.; Dobson, M.; Doglioni, C.; Doherty, T.; Dolejsi, J.; Dolenc, I.; Dolezal, Z.; Dolgoshein, B.A.; Dohmae, T.; Donega, M.; Donini, J.; Dopke, J.; Doria, A.; Dos Anjos, A.; Dotti, A.; Dova, M.T.; Doxiadis, A.; Doyle, A.T.; Drasal, Z.; Dris, M.; Dubbert, J.; Duchovni, E.; Duckeck, G.; Dudarev, A.; Dudziak, F.; Duhrssen, M.; Duflot, L.; Dufour, M-A.; Dunford, M.; Duran Yildiz, H.; Dushkin, A.; Duxfield, R.; Dwuznik, M.; Duren, M.; Ebenstein, W.L.; Ebke, J.; Eckweiler, S.; Edmonds, K.; Edwards, C.A.; Egorov, K.; Ehrenfeld, W.; Ehrich, T.; Eifert, T.; Eigen, G.; Einsweiler, K.; Eisenhandler, E.; Ekelof, T.; El Kacimi, M.; Ellert, M.; Elles, S.; Ellinghaus, F.; Ellis, K.; Ellis, N.; Elmsheuser, J.; Elsing, M.; Emeliyanov, D.; Engelmann, R.; Engl, A.; Epp, B.; Eppig, A.; Erdmann, J.; Ereditato, A.; Eriksson, D.; Ermoline, I.; Ernst, J.; Ernst, M.; Ernwein, J.; Errede, D.; Errede, S.; Ertel, E.; Escalier, M.; Escobar, C.; Espinal Curull, X.; Esposito, B.; Etienvre, A.I.; Etzion, E.; Evans, H.; Fabbri, L.; Fabre, C.; Facius, K.; Fakhrutdinov, R.M.; Falciano, S.; Fang, Y.; Fanti, M.; Farbin, A.; Farilla, A.; Farley, J.; Farooque, T.; Farrington, S.M.; Farthouat, P.; Fassnacht, P.; Fassouliotis, D.; Fatholahzadeh, B.; Fayard, L.; Fayette, F.; Febbraro, R.; Federic, P.; Fedin, O.L.; Fedorko, W.; Feligioni, L.; Felzmann, C.U.; Feng, C.; Feng, E.J.; Fenyuk, A.B.; Ferencei, J.; Ferland, J.; Fernandes, B.; Fernando, W.; Ferrag, S.; Ferrando, J.; Ferrara, V.; Ferrari, A.; Ferrari, P.; Ferrari, R.; Ferrer, A.; Ferrer, M.L.; Ferrere, D.; Ferretti, C.; Fiascaris, M.; Fiedler, F.; Filipcic, A.; Filippas, A.; Filthaut, F.; Fincke-Keeler, M.; Fiolhais, M.C.N.; Fiorini, L.; Firan, A.; Fischer, G.; Fisher, M.J.; Flechl, M.; Fleck, I.; Fleckner, J.; Fleischmann, P.; Fleischmann, S.; Flick, T.; Flores Castillo, L.R.; Flowerdew, M.J.; Fonseca Martin, T.; Formica, A.; Forti, A.; Fortin, D.; Fournier, D.; Fowler, A.J.; Fowler, K.; Fox, H.; Francavilla, P.; Franchino, S.; Francis, D.; Franklin, M.; Franz, S.; Fraternali, M.; Fratina, S.; Freestone, J.; French, S.T.; Froeschl, R.; Froidevaux, D.; Frost, J.A.; Fukunaga, C.; Fullana Torregrosa, E.; Fuster, J.; Gabaldon, C.; Gabizon, O.; Gadfort, T.; Gadomski, S.; Gagliardi, G.; Gagnon, P.; Galea, C.; Gallas, E.J.; Gallo, V.; Gallop, B.J.; Gallus, P.; Galyaev, E.; Gan, K.K.; Gao, Y.S.; Gaponenko, A.; Garcia-Sciveres, M.; Garcia, C.; Garcia Navarro, J.E.; Gardner, R.W.; Garelli, N.; Garitaonandia, H.; Garonne, V.; Gatti, C.; Gaudio, G.; Gautard, V.; Gauzzi, P.; Gavrilenko, I.L.; Gay, C.; Gaycken, G.; Gazis, E.N.; Ge, P.; Gee, C.N.P.; Geich-Gimbel, Ch.; Gellerstedt, K.; Gemme, C.; Genest, M.H.; Gentile, S.; Georgatos, F.; George, S.; Gershon, A.; Ghazlane, H.; Ghodbane, N.; Giacobbe, B.; Giagu, S.; Giakoumopoulou, V.; Giangiobbe, V.; Gianotti, F.; Gibbard, B.; Gibson, A.; Gibson, S.M.; Gilbert, L.M.; Gilchriese, M.; Gilewsky, V.; 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Grigalashvili, N.; Grillo, A.A.; Grimm, K.; Grinstein, S.; Grishkevich, Y.V.; Groh, M.; Groll, M.; Gross, E.; Grosse-Knetter, J.; Groth-Jensen, J.; Grybel, K.; Guicheney, C.; Guida, A.; Guillemin, T.; Guler, H.; Gunther, J.; Guo, B.; Gupta, A.; Gusakov, Y.; Gutierrez, A.; Gutierrez, P.; Guttman, N.; Gutzwiller, O.; Guyot, C.; Gwenlan, C.; Gwilliam, C.B.; Haas, A.; Haas, S.; Haber, C.; Hadavand, H.K.; Hadley, D.R.; Haefner, P.; Hartel, R.; Hajduk, Z.; Hakobyan, H.; Haller, J.; Hamacher, K.; Hamilton, A.; Hamilton, S.; Han, L.; Hanagaki, K.; Hance, M.; Handel, C.; Hanke, P.; Hansen, J.R.; Hansen, J.B.; Hansen, J.D.; Hansen, P.H.; Hansl-Kozanecka, T.; Hansson, P.; Hara, K.; Hare, G.A.; Harenberg, T.; Harrington, R.D.; Harris, O.M.; Harrison, K; Hartert, J.; Hartjes, F.; Harvey, A.; Hasegawa, S.; Hasegawa, Y.; Hashemi, K.; Hassani, S.; Haug, S.; Hauschild, M.; Hauser, R.; Havranek, M.; Hawkes, C.M.; Hawkings, R.J.; Hayakawa, T.; Hayward, H.S.; Haywood, S.J.; Head, S.J.; Hedberg, V.; Heelan, L.; Heim, S.; Heinemann, B.; Heisterkamp, S.; Helary, L.; Heller, M.; Hellman, S.; Helsens, C.; Hemperek, T.; Henderson, R.C.W.; Henke, M.; Henrichs, A.; Henriques Correia, A.M.; Henrot-Versille, S.; Hensel, C.; Henss, T.; Hernandez Jimenez, Y.; Hershenhorn, A.D.; Herten, G.; Hertenberger, R.; Hervas, L.; Hessey, N.P.; Higon-Rodriguez, E.; Hill, J.C.; Hiller, K.H.; Hillert, S.; Hillier, S.J.; Hinchliffe, I.; Hines, E.; Hirose, M.; Hirsch, F.; Hirschbuehl, D.; Hobbs, J.; Hod, N.; Hodgkinson, M.C.; Hodgson, P.; Hoecker, A.; Hoeferkamp, M.R.; Hoffman, J.; Hoffmann, D.; Hohlfeld, M.; Holy, T.; Holzbauer, J.L.; Homma, Y.; Horazdovsky, T.; Hori, T.; Horn, C.; Horner, S.; Horvat, S.; Hostachy, J-Y.; Hou, S.; Hoummada, A.; Howe, T.; Hrivnac, J.; Hryn'ova, T.; Hsu, P.J.; Hsu, S.C.; Huang, G.S.; Hubacek, Z.; Hubaut, F.; Huegging, F.; Hughes, E.W.; Hughes, G.; Hurwitz, M.; Husemann, U.; Huseynov, N.; Huston, J.; Huth, J.; Iacobucci, G.; Iakovidis, G.; Ibragimov, I.; Iconomidou-Fayard, L.; Idarraga, J.; Iengo, P.; Igonkina, O.; Ikegami, Y.; Ikeno, M.; Ilchenko, Y.; Iliadis, D.; Ince, T.; Ioannou, P.; Iodice, M.; Irles Quiles, A.; Ishikawa, A.; Ishino, M.; Ishmukhametov, R.; Isobe, T.; Issakov, V.; Issever, C.; Istin, S.; Itoh, Y.; Ivashin, A.V.; Iwanski, W.; Iwasaki, H.; Izen, J.M.; Izzo, V.; Jackson, B.; Jackson, J.N.; Jackson, P.; Jaekel, M.R.; Jain, V.; Jakobs, K.; Jakobsen, S.; Jakubek, J.; Jana, D.K.; Jansen, E.; Jantsch, A.; Janus, M.; Jared, R.C.; Jarlskog, G.; Jeanty, L.; Jen-La Plante, I.; Jenni, P.; Jez, P.; Jezequel, S.; Ji, W.; Jia, J.; Jiang, Y.; Jimenez Belenguer, M.; Jin, S.; Jinnouchi, O.; Joffe, D.; Johansen, M.; Johansson, K.E.; Johansson, P.; Johnert, S; Johns, K.A.; Jon-And, K.; Jones, G.; Jones, R.W.L.; Jones, T.J.; Jorge, P.M.; Joseph, J.; Juranek, V.; Jussel, P.; Kabachenko, V.V.; Kaci, M.; Kaczmarska, A.; Kado, M.; Kagan, H.; Kagan, M.; Kaiser, S.; Kajomovitz, E.; Kalinin, S.; Kalinovskaya, L.V.; Kalinowski, A.; Kama, S.; Kanaya, N.; Kaneda, M.; Kantserov, V.A.; 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Smith, B.C.; Smith, D.; Smith, K.M.; Smizanska, M.; Smolek, K.; Snesarev, A.A.; Snow, S.W.; Snow, J.; Snuverink, J.; Snyder, S.; Soares, M.; Sobie, R.; Sodomka, J.; Soffer, A.; Solans, C.A.; Solar, M.; Solc, J.; Solfaroli Camillocci, E.; Solodkov, A.A.; Solovyanov, O.V.; Soluk, R.; Sondericker, J.; Sopko, V.; Sopko, B.; Sosebee, M.; Soukharev, A.; Spagnolo, S.; Spano, F.; Spencer, E.; Spighi, R.; Spigo, G.; Spila, F.; Spiwoks, R.; Spousta, M.; Spreitzer, T.; Spurlock, B.; St. Denis, R.D.; Stahl, T.; Stahlman, J.; Stamen, R.; Stancu, S.N.; Stanecka, E.; Stanek, R.W.; Stanescu, C.; Stapnes, S.; Starchenko, E.A.; Stark, J.; Staroba, P.; Starovoitov, P.; Stastny, J.; Stavina, P.; Steele, G.; Steinbach, P.; Steinberg, P.; Stekl, I.; Stelzer, B.; Stelzer, H.J.; Stelzer-Chilton, O.; Stenzel, H.; Stevenson, K.; Stewart, G.A.; Stockton, M.C.; Stoerig, K.; Stoicea, G.; Stonjek, S.; Strachota, P.; Stradling, A.R.; Straessner, A.; Strandberg, J.; Strandberg, S.; Strandlie, A.; Strauss, M.; Strizenec, P.; Strohmer, R.; Strom, D.M.; Stroynowski, R.; Strube, J.; Stugu, B.; Soh, D.A.; Su, D.; Sugaya, Y.; Sugimoto, T.; Suhr, C.; Suk, M.; Sulin, V.V.; Sultansoy, S.; Sumida, T.; Sun, X.H.; Sundermann, J.E.; Suruliz, K.; Sushkov, S.; Susinno, G.; Sutton, M.R.; Suzuki, T.; Suzuki, Y.; Sykora, I.; Sykora, T.; Szymocha, T.; Sanchez, J.; Ta, D.; Tackmann, K.; Taffard, A.; Tafirout, R.; Taga, A.; Takahashi, Y.; Takai, H.; Takashima, R.; Takeda, H.; Takeshita, T.; Talby, M.; Talyshev, A.; Tamsett, M.C.; Tanaka, J.; Tanaka, R.; Tanaka, S.; Tanaka, S.; Tapprogge, S.; Tardif, D.; Tarem, S.; Tarrade, F.; Tartarelli, G.F.; Tas, P.; Tasevsky, M.; Tassi, E.; Tatarkhanov, M.; Taylor, C.; Taylor, F.E.; Taylor, G.N.; Taylor, R.P.; Taylor, W.; Teixeira-Dias, P.; Ten Kate, H.; Teng, P.K.; Tennenbaum-Katan, Y.D.; Terada, S.; Terashi, K.; Terron, J.; Terwort, M.; Testa, M.; Teuscher, R.J.; Thioye, M.; Thoma, S.; Thomas, J.P.; Thompson, E.N.; Thompson, P.D.; Thompson, P.D.; Thompson, R.J.; Thompson, A.S.; Thomson, E.; Thun, R.P.; Tic, T.; Tikhomirov, V.O.; Tikhonov, Y.A.; Tipton, P.; Tique Aires Viegas, F.J.; Tisserant, S.; Toczek, B.; Todorov, T.; Todorova-Nova, S.; Toggerson, B.; Tojo, J.; Tokar, S.; Tokushuku, K.; Tollefson, K.; Tomasek, L.; Tomasek, M.; Tomoto, M.; Tompkins, L.; Toms, K.; Tonoyan, A.; Topfel, C.; Topilin, N.D.; Torrence, E.; Torro Pastor, E.; Toth, J.; Touchard, F.; Tovey, D.R.; Trefzger, T.; Tremblet, L.; Tricoli, A.; Trigger, I.M.; Trincaz-Duvoid, S.; Trinh, T.N.; Tripiana, M.F.; Triplett, N.; Trischuk, W.; Trivedi, A.; Trocme, B.; Troncon, C.; Trzupek, A.; Tsarouchas, C.; Tseng, J.C-L.; Tsiakiris, M.; Tsiareshka, P.V.; Tsionou, D.; Tsipolitis, G.; Tsiskaridze, V.; Tskhadadze, E.G.; Tsukerman, I.I.; Tsulaia, V.; Tsung, J.W.; Tsuno, S.; Tsybychev, D.; Tuggle, J.M.; Turecek, D.; Turk Cakir, I.; Turlay, E.; Tuts, P.M.; Twomey, M.S.; Tylmad, M.; Tyndel, M.; Uchida, K.; Ueda, I.; Ugland, M.; Uhlenbrock, M.; Uhrmacher, M.; Ukegawa, F.; Unal, G.; Undrus, A.; Unel, G.; Unno, Y.; Urbaniec, D.; Urkovsky, E.; Urquijo, P.; Urrejola, P.; Usai, G.; Uslenghi, M.; Vacavant, L.; Vacek, V.; Vachon, B.; Vahsen, S.; Valente, P.; Valentinetti, S.; Valkar, S.; Valladolid Gallego, E.; Vallecorsa, S.; Valls Ferrer, J.A.; Van Berg, R.; van der Graaf, H.; van der Kraaij, E.; van der Poel, E.; van der Ster, D.; van Eldik, N.; van Gemmeren, P.; van Kesteren, Z.; van Vulpen, I.; Vandelli, W.; Vaniachine, A.; Vankov, P.; Vannucci, F.; Vari, R.; Varnes, E.W.; Varouchas, D.; Vartapetian, A.; Varvell, K.E.; Vasilyeva, L.; Vassilakopoulos, V.I.; Vazeille, F.; Vellidis, C.; Veloso, F.; Veneziano, S.; Ventura, A.; Ventura, D.; Venturi, M.; Venturi, N.; Vercesi, V.; Verducci, M.; Verkerke, W.; Vermeulen, J.C.; Vetterli, M.C.; Vichou, I.; Vickey, T.; Viehhauser, G.H.A.; Villa, M.; Villani, E.G.; Villaplana Perez, M.; Vilucchi, E.; Vincter, M.G.; Vinek, E.; Vinogradov, V.B.; Viret, S.; Virzi, J.; Vitale, A.; Vitells, O.; Vivarelli, I.; Vives Vaque, F.; Vlachos, S.; Vlasak, M.; Vlasov, N.; Vogel, A.; Vokac, P.; Volpi, M.; von der Schmitt, H.; von Loeben, J.; von Radziewski, H.; von Toerne, E.; Vorobel, V.; Vorwerk, V.; Vos, M.; Voss, R.; Voss, T.T.; Vossebeld, J.H.; Vranjes, N.; Vranjes Milosavljevic, M.; Vrba, V.; Vreeswijk, M.; Vu Anh, T.; Vudragovic, D.; Vuillermet, R.; Vukotic, I.; Wagner, P.; Walbersloh, J.; Walder, J.; Walker, R.; Walkowiak, W.; Wall, R.; Wang, C.; Wang, H.; Wang, J.; Wang, S.M.; Warburton, A.; Ward, C.P.; Warsinsky, M.; Wastie, R.; Watkins, P.M.; Watson, A.T.; Watson, M.F.; Watts, G.; Watts, S.; Waugh, A.T.; Waugh, B.M.; Weber, M.D.; Weber, M.; Weber, M.S.; Weber, P.; Weidberg, A.R.; Weingarten, J.; Weiser, C.; Wellenstein, H.; Wells, P.S.; Wen, M.; Wenaus, T.; Wendler, S.; Wengler, T.; Wenig, S.; Wermes, N.; Werner, M.; Werner, P.; Werth, M.; Werthenbach, U.; Wessels, M.; Whalen, K.; White, A.; White, M.J.; White, S.; Whitehead, S.R.; Whiteson, D.; Whittington, D.; Wicek, F.; Wicke, D.; Wickens, F.J.; Wiedenmann, W.; Wielers, M.; Wienemann, P.; Wiglesworth, C.; Wiik, L.A.M.; Wildauer, A.; Wildt, M.A.; Wilkens, H.G.; Williams, E.; Williams, H.H.; Willocq, S.; Wilson, J.A.; Wilson, M.G.; Wilson, A.; Wingerter-Seez, I.; Winklmeier, F.; Wittgen, M.; Wolter, M.W.; Wolters, H.; Wosiek, B.K.; Wotschack, J.; Woudstra, M.J.; Wraight, K.; Wright, C.; Wright, D.; Wrona, B.; Wu, S.L.; Wu, X.; Wulf, E.; Wynne, B.M.; Xaplanteris, L.; Xella, S.; Xie, S.; Xu, D.; Xu, N.; Yamada, M.; Yamamoto, A.; Yamamoto, K.; Yamamoto, S.; Yamamura, T.; Yamaoka, J.; Yamazaki, T.; Yamazaki, Y.; Yan, Z.; Yang, H.; Yang, U.K.; Yang, Z.; Yao, W-M.; Yao, Y.; Yasu, Y.; Ye, J.; Ye, S.; Yilmaz, M.; Yoosoofmiya, R.; Yorita, K.; Yoshida, R.; Young, C.; Youssef, S.P.; Yu, D.; Yu, J.; Yuan, L.; Yurkewicz, A.; Zaidan, R.; Zaitsev, A.M.; Zajacova, Z.; Zambrano, V.; Zanello, L.; Zaytsev, A.; Zeitnitz, C.; Zeller, M.; Zemla, A.; Zendler, C.; Zenin, O.; Zenis, T.; Zenonos, Z.; Zenz, S.; Zerwas, D.; Zevi della Porta, G.; Zhan, Z.; Zhang, H.; Zhang, J.; Zhang, Q.; Zhang, X.; Zhao, L.; Zhao, T.; Zhao, Z.; Zhemchugov, A.; Zhong, J.; Zhou, B.; Zhou, N.; Zhou, Y.; Zhu, C.G.; Zhu, H.; Zhu, Y.; Zhuang, X.; Zhuravlov, V.; Zimmermann, R.; Zimmermann, S.; Zimmermann, S.; Ziolkowski, M.; Zivkovic, L.; Zobernig, G.; Zoccoli, A.; zur Nedden, M.; Zutshi, V.

    2010-01-01

    The simulation software for the ATLAS Experiment at the Large Hadron Collider is being used for large-scale production of events on the LHC Computing Grid. This simulation requires many components, from the generators that simulate particle collisions, through packages simulating the response of the various detectors and triggers. All of these components come together under the ATLAS simulation infrastructure. In this paper, that infrastructure is discussed, including that supporting the detector description, interfacing the event generation, and combining the GEANT4 simulation of the response of the individual detectors. Also described are the tools allowing the software validation, performance testing, and the validation of the simulated output against known physics processes.

  13. Displays and simulators

    Science.gov (United States)

    Mohon, N.

    A 'simulator' is defined as a machine which imitates the behavior of a real system in a very precise manner. The major components of a simulator and their interaction are outlined in brief form, taking into account the major components of an aircraft flight simulator. Particular attention is given to the visual display portion of the simulator, the basic components of the display, their interactions, and their characteristics. Real image displays are considered along with virtual image displays, and image generators. Attention is given to an advanced simulator for pilot training, a holographic pancake window, a scan laser image generator, the construction of an infrared target simulator, and the Apollo Command Module Simulator.

  14. Power station simulators

    International Nuclear Information System (INIS)

    Zanobetti

    1989-01-01

    The number and the variety of simulators have gown to such an extent that it has become necessary to classify the numerous types now available. Simulators are of paramount importance for the design of nuclear power plants, for optimizing their efficiency and for the training of their operators: factors that contribute to their overall security. This book contains chapters on the following subjects: the development of power plant simulators, the components and classification of simulators, simulator technology, simulator performance and problems in simulator training

  15. Purdue Contribution of Fusion Simulation Program

    Energy Technology Data Exchange (ETDEWEB)

    Jeffrey Brooks

    2011-09-30

    The overall science goal of the FSP is to develop predictive simulation capability for magnetically confined fusion plasmas at an unprecedented level of integration and fidelity. This will directly support and enable effective U.S. participation in research related to the International Thermonuclear Experimental Reactor (ITER) and the overall mission of delivering practical fusion energy. The FSP will address a rich set of scientific issues together with experimental programs, producing validated integrated physics results. This is very well aligned with the mission of the ITER Organization to coordinate with its members the integrated modeling and control of fusion plasmas, including benchmarking and validation activities. [1]. Initial FSP research will focus on two critical areas: 1) the plasma edge and 2) whole device modeling including disruption avoidance. The first of these problems involves the narrow plasma boundary layer and its complex interactions with the plasma core and the surrounding material wall. The second requires development of a computationally tractable, but comprehensive model that describes all equilibrium and dynamic processes at a sufficient level of detail to provide useful prediction of the temporal evolution of fusion plasma experiments. The initial driver for the whole device model (WDM) will be prediction and avoidance of discharge-terminating disruptions, especially at high performance, which are a critical impediment to successful operation of machines like ITER. If disruptions prove unable to be avoided, their associated dynamics and effects will be addressed in the next phase of the FSP. The FSP plan targets the needed modeling capabilities by developing Integrated Science Applications (ISAs) specific to their needs. The Pedestal-Boundary model will include boundary magnetic topology, cross-field transport of multi-species plasmas, parallel plasma transport, neutral transport, atomic physics and interactions with the plasma wall

  16. A Report on Simulation-Driven Reliability and Failure Analysis of Large-Scale Storage Systems

    Energy Technology Data Exchange (ETDEWEB)

    Wan, Lipeng [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wang, Feiyi [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Oral, H. Sarp [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Vazhkudai, Sudharshan S. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Cao, Qing [Univ. of Tennessee, Knoxville, TN (United States)

    2014-11-01

    High-performance computing (HPC) storage systems provide data availability and reliability using various hardware and software fault tolerance techniques. Usually, reliability and availability are calculated at the subsystem or component level using limited metrics such as, mean time to failure (MTTF) or mean time to data loss (MTTDL). This often means settling on simple and disconnected failure models (such as exponential failure rate) to achieve tractable and close-formed solutions. However, such models have been shown to be insufficient in assessing end-to-end storage system reliability and availability. We propose a generic simulation framework aimed at analyzing the reliability and availability of storage systems at scale, and investigating what-if scenarios. The framework is designed for an end-to-end storage system, accommodating the various components and subsystems, their interconnections, failure patterns and propagation, and performs dependency analysis to capture a wide-range of failure cases. We evaluate the framework against a large-scale storage system that is in production and analyze its failure projections toward and beyond the end of lifecycle. We also examine the potential operational impact by studying how different types of components affect the overall system reliability and availability, and present the preliminary results

  17. Homogeneous alignment of liquid crystalline dendrimers confined in a slit-pore. A simulation study.

    Science.gov (United States)

    Workineh, Zerihun G; Vanakaras, Alexandros G

    2016-03-23

    In this work we present results from isobaric-isothermal (NPT) Monte Carlo simulation studies of model liquid crystalline dendrimer (LCDr) systems confined in a slit-pore made of two parallel flat walls. The dendrimers are modelled as a collection of spherical and ellipsoidal particles corresponding to the junction points of the dendritic core and to the mesogenic units respectively. Assuming planar uniform (unidirectional) soft anchoring of the mesogenic units on the substrates we investigate the conformational and alignment properties of the LCDr system at different thermodynamic state points. Tractable coarse grained force fields have been used from our previous work. At low pressures the interior of the pore is almost empty, since almost all LCDrs are anchored to the substrates forming two-dimensional smectic-like structures with the mesogens aligned along the aligning direction of the substrates. As the pressure grows the LCDrs occupy the whole pore. However, even at low temperatures, the smectic organization does not transmit in the interior of the pore and is preserved for distances of 2-3 mesogenic diameters from the walls. For this reason, the global orientational order decreases with increasing pressure (density). In the vicinity (2-3 mesogenic diameters) of the pore walls, mesogenic units preserve the smectic structure whose layers are separated by layers of spherical beads. In this region individual LCDrs possess a rod like shape.

  18. Block Preconditioning to Enable Physics-Compatible Implicit Multifluid Plasma Simulations

    Science.gov (United States)

    Phillips, Edward; Shadid, John; Cyr, Eric; Miller, Sean

    2017-10-01

    Multifluid plasma simulations involve large systems of partial differential equations in which many time-scales ranging over many orders of magnitude arise. Since the fastest of these time-scales may set a restrictively small time-step limit for explicit methods, the use of implicit or implicit-explicit time integrators can be more tractable for obtaining dynamics at time-scales of interest. Furthermore, to enforce properties such as charge conservation and divergence-free magnetic field, mixed discretizations using volume, nodal, edge-based, and face-based degrees of freedom are often employed in some form. Together with the presence of stiff modes due to integrating over fast time-scales, the mixed discretization makes the required linear solves for implicit methods particularly difficult for black box and monolithic solvers. This work presents a block preconditioning strategy for multifluid plasma systems that segregates the linear system based on discretization type and approximates off-diagonal coupling in block diagonal Schur complement operators. By employing multilevel methods for the block diagonal subsolves, this strategy yields algorithmic and parallel scalability which we demonstrate on a range of problems.

  19. Homogeneous alignment of liquid crystalline dendrimers confined in a slit-pore. A simulation study

    Science.gov (United States)

    Workineh, Zerihun G.; Vanakaras, Alexandros G.

    2016-03-01

    In this work we present results from isobaric-isothermal (NPT) Monte Carlo simulation studies of model liquid crystalline dendrimer (LCDr) systems confined in a slit-pore made of two parallel flat walls. The dendrimers are modelled as a collection of spherical and ellipsoidal particles corresponding to the junction points of the dendritic core and to the mesogenic units respectively. Assuming planar uniform (unidirectional) soft anchoring of the mesogenic units on the substrates we investigate the conformational and alignment properties of the LCDr system at different thermodynamic state points. Tractable coarse grained force fields have been used from our previous work. At low pressures the interior of the pore is almost empty, since almost all LCDrs are anchored to the substrates forming two-dimensional smectic-like structures with the mesogens aligned along the aligning direction of the substrates. As the pressure grows the LCDrs occupy the whole pore. However, even at low temperatures, the smectic organization does not transmit in the interior of the pore and is preserved for distances of 2-3 mesogenic diameters from the walls. For this reason, the global orientational order decreases with increasing pressure (density). In the vicinity (2-3 mesogenic diameters) of the pore walls, mesogenic units preserve the smectic structure whose layers are separated by layers of spherical beads. In this region individual LCDrs possess a rod like shape.

  20. Optimization of startup and shutdown operation of simulated moving bed chromatographic processes.

    Science.gov (United States)

    Li, Suzhou; Kawajiri, Yoshiaki; Raisch, Jörg; Seidel-Morgenstern, Andreas

    2011-06-24

    This paper presents new multistage optimal startup and shutdown strategies for simulated moving bed (SMB) chromatographic processes. The proposed concept allows to adjust transient operating conditions stage-wise, and provides capability to improve transient performance and to fulfill product quality specifications simultaneously. A specially tailored decomposition algorithm is developed to ensure computational tractability of the resulting dynamic optimization problems. By examining the transient operation of a literature separation example characterized by nonlinear competitive isotherm, the feasibility of the solution approach is demonstrated, and the performance of the conventional and multistage optimal transient regimes is evaluated systematically. The quantitative results clearly show that the optimal operating policies not only allow to significantly reduce both duration of the transient phase and desorbent consumption, but also enable on-spec production even during startup and shutdown periods. With the aid of the developed transient procedures, short-term separation campaigns with small batch sizes can be performed more flexibly and efficiently by SMB chromatography. Copyright © 2011 Elsevier B.V. All rights reserved.

  1. Homogeneous alignment of liquid crystalline dendrimers confined in a slit-pore. A simulation study

    International Nuclear Information System (INIS)

    Workineh, Zerihun G; Vanakaras, Alexandros G

    2016-01-01

    In this work we present results from isobaric-isothermal (NPT) Monte Carlo simulation studies of model liquid crystalline dendrimer (LCDr) systems confined in a slit-pore made of two parallel flat walls. The dendrimers are modelled as a collection of spherical and ellipsoidal particles corresponding to the junction points of the dendritic core and to the mesogenic units respectively. Assuming planar uniform (unidirectional) soft anchoring of the mesogenic units on the substrates we investigate the conformational and alignment properties of the LCDr system at different thermodynamic state points. Tractable coarse grained force fields have been used from our previous work. At low pressures the interior of the pore is almost empty, since almost all LCDrs are anchored to the substrates forming two-dimensional smectic-like structures with the mesogens aligned along the aligning direction of the substrates. As the pressure grows the LCDrs occupy the whole pore. However, even at low temperatures, the smectic organization does not transmit in the interior of the pore and is preserved for distances of 2–3 mesogenic diameters from the walls. For this reason, the global orientational order decreases with increasing pressure (density). In the vicinity (2–3 mesogenic diameters) of the pore walls, mesogenic units preserve the smectic structure whose layers are separated by layers of spherical beads. In this region individual LCDrs possess a rod like shape. (paper)

  2. Scientific computer simulation review

    International Nuclear Information System (INIS)

    Kaizer, Joshua S.; Heller, A. Kevin; Oberkampf, William L.

    2015-01-01

    Before the results of a scientific computer simulation are used for any purpose, it should be determined if those results can be trusted. Answering that question of trust is the domain of scientific computer simulation review. There is limited literature that focuses on simulation review, and most is specific to the review of a particular type of simulation. This work is intended to provide a foundation for a common understanding of simulation review. This is accomplished through three contributions. First, scientific computer simulation review is formally defined. This definition identifies the scope of simulation review and provides the boundaries of the review process. Second, maturity assessment theory is developed. This development clarifies the concepts of maturity criteria, maturity assessment sets, and maturity assessment frameworks, which are essential for performing simulation review. Finally, simulation review is described as the application of a maturity assessment framework. This is illustrated through evaluating a simulation review performed by the U.S. Nuclear Regulatory Commission. In making these contributions, this work provides a means for a more objective assessment of a simulation’s trustworthiness and takes the next step in establishing scientific computer simulation review as its own field. - Highlights: • We define scientific computer simulation review. • We develop maturity assessment theory. • We formally define a maturity assessment framework. • We describe simulation review as the application of a maturity framework. • We provide an example of a simulation review using a maturity framework

  3. Safety by simulation; Sicherheit durch Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, Eberhard [KSG Kraftwerks-Simulator-Gesellschaft mbH, Essen (Germany); GfS Gesellschaft fuer Simulatorschulung mbH, Essen (Germany)

    2009-06-15

    Simulator training is a key component in achieving and preserving on the long term the necessary expertise of plant personnel also required by the authorities. In this way, it makes an important contribution to the safe operation of nuclear power plants. Simulators are a component in the training of operating personnel of nuclear power plants which allows nuclear power plant operators to be prepared in a focused and practice-oriented way for their activity in everyday plant operation and for possible accident simulation. The simulator center is supported by 5 nuclear power plant operators: the German E.ON Kernkraft GmbH, RWE Power AG, EnBW Kraftwerke AG, and Vattenfall Europe Nuclear Energy GmbH companies as well as the Netherlands N.V. Electriciteits-Produktiemaatschappij Zuid-Nederland. They established a joint enterprise in Essen which performs in one central place the duty of simulator training incumbent upon all nuclear power plants. (orig.)

  4. A multi-level hierarchic Markov process with Bayesian updating for herd optimization and simulation in dairy cattle.

    Science.gov (United States)

    Demeter, R M; Kristensen, A R; Dijkstra, J; Oude Lansink, A G J M; Meuwissen, M P M; van Arendonk, J A M

    2011-12-01

    Herd optimization models that determine economically optimal insemination and replacement decisions are valuable research tools to study various aspects of farming systems. The aim of this study was to develop a herd optimization and simulation model for dairy cattle. The model determines economically optimal insemination and replacement decisions for individual cows and simulates whole-herd results that follow from optimal decisions. The optimization problem was formulated as a multi-level hierarchic Markov process, and a state space model with Bayesian updating was applied to model variation in milk yield. Methodological developments were incorporated in 2 main aspects. First, we introduced an additional level to the model hierarchy to obtain a more tractable and efficient structure. Second, we included a recently developed cattle feed intake model. In addition to methodological developments, new parameters were used in the state space model and other biological functions. Results were generated for Dutch farming conditions, and outcomes were in line with actual herd performance in the Netherlands. Optimal culling decisions were sensitive to variation in milk yield but insensitive to energy requirements for maintenance and feed intake capacity. We anticipate that the model will be applied in research and extension. Copyright © 2011 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.

  5. Hybrid finite-volume/transported PDF method for the simulation of turbulent reactive flows

    Science.gov (United States)

    Raman, Venkatramanan

    A novel computational scheme is formulated for simulating turbulent reactive flows in complex geometries with detailed chemical kinetics. A Probability Density Function (PDF) based method that handles the scalar transport equation is coupled with an existing Finite Volume (FV) Reynolds-Averaged Navier-Stokes (RANS) flow solver. The PDF formulation leads to closed chemical source terms and facilitates the use of detailed chemical mechanisms without approximations. The particle-based PDF scheme is modified to handle complex geometries and grid structures. Grid-independent particle evolution schemes that scale linearly with the problem size are implemented in the Monte-Carlo PDF solver. A novel algorithm, in situ adaptive tabulation (ISAT) is employed to ensure tractability of complex chemistry involving a multitude of species. Several non-reacting test cases are performed to ascertain the efficiency and accuracy of the method. Simulation results from a turbulent jet-diffusion flame case are compared against experimental data. The effect of micromixing model, turbulence model and reaction scheme on flame predictions are discussed extensively. Finally, the method is used to analyze the Dow Chlorination Reactor. Detailed kinetics involving 37 species and 158 reactions as well as a reduced form with 16 species and 21 reactions are used. The effect of inlet configuration on reactor behavior and product distribution is analyzed. Plant-scale reactors exhibit quenching phenomena that cannot be reproduced by conventional simulation methods. The FV-PDF method predicts quenching accurately and provides insight into the dynamics of the reactor near extinction. The accuracy of the fractional time-stepping technique in discussed in the context of apparent multiple-steady states observed in a non-premixed feed configuration of the chlorination reactor.

  6. Tractable Stochastic Geometry Model for IoT Access in LTE Networks

    KAUST Repository

    Gharbieh, Mohammad; Elsawy, Hesham; Bader, Ahmed; Alouini, Mohamed-Slim

    2017-01-01

    The Internet of Things (IoT) is large-scale by nature. This is not only manifested by the large number of connected devices, but also by the high volumes of traffic that must be accommodated. Cellular networks are indeed a natural candidate for the data tsunami the IoT is expected to generate in conjunction with legacy human-type traffic. However, the random access process for scheduling request represents a major bottleneck to support IoT via LTE cellular networks. Accordingly, this paper develops a mathematical framework to model and study the random access channel (RACH) scalability to accommodate IoT traffic. The developed model is based on stochastic geometry and discrete time Markov chains (DTMC) to account for different access strategies and possible sources of inter-cell and intra-cell interferences. To this end, the developed model is utilized to assess and compare three different access strategies, which incorporate a combination of transmission persistency, back-off, and power ramping. The analysis and the results showcased herewith clearly illustrate the vulnerability of the random access procedure as the IoT intensity grows. Finally, the paper offers insights into effective scenarios for each transmission strategy in terms of IoT intensity and RACH detection thresholds.

  7. Electric-drive tractability indicator integrated in hybrid electric vehicle tachometer

    Science.gov (United States)

    Tamai, Goro; Zhou, Jing; Weslati, Feisel

    2014-09-02

    An indicator, system and method of indicating electric drive usability in a hybrid electric vehicle. A tachometer is used that includes a display having an all-electric drive portion and a hybrid drive portion. The all-electric drive portion and the hybrid drive portion share a first boundary which indicates a minimum electric drive usability and a beginning of hybrid drive operation of the vehicle. The indicated level of electric drive usability is derived from at least one of a percent battery discharge, a percent maximum torque provided by the electric drive, and a percent electric drive to hybrid drive operating cost for the hybrid electric vehicle.

  8. Fitting the CDO correlation skew: a tractable structural jump-diffusion model

    DEFF Research Database (Denmark)

    Willemann, Søren

    2007-01-01

    We extend a well-known structural jump-diffusion model for credit risk to handle both correlations through diffusion of asset values and common jumps in asset value. Through a simplifying assumption on the default timing and efficient numerical techniques, we develop a semi-analytic framework...... allowing for instantaneous calibration to heterogeneous CDS curves and fast computation of CDO tranche spreads. We calibrate the model to CDX and iTraxx data from February 2007 and achieve a satisfactory fit. To price the senior tranches for both indices, we require a risk-neutral probability of a market...

  9. Dependence of Computational Models on Input Dimension: Tractability of Approximation and Optimization Tasks

    Czech Academy of Sciences Publication Activity Database

    Kainen, P.C.; Kůrková, Věra; Sanguineti, M.

    2012-01-01

    Roč. 58, č. 2 (2012), s. 1203-1214 ISSN 0018-9448 R&D Projects: GA MŠk(CZ) ME10023; GA ČR GA201/08/1744; GA ČR GAP202/11/1368 Grant - others:CNR-AV ČR(CZ-IT) Project 2010–2012 Complexity of Neural -Network and Kernel Computational Models Institutional research plan: CEZ:AV0Z10300504 Keywords : dictionary-based computational models * high-dimensional approximation and optimization * model complexity * polynomial upper bounds Subject RIV: IN - Informatics, Computer Science Impact factor: 2.621, year: 2012

  10. Unified Tractable Model for Large-Scale Networks Using Stochastic Geometry: Analysis and Design

    KAUST Repository

    Afify, Laila H.

    2016-01-01

    about the interferers symbols can be approximated via the Gaussian signaling approach. The developed mathematical model presents twofold analysis unification for uplink and downlink cellular networks literature. It aligns the tangible decoding error

  11. Adaptation of the genetically tractable malaria pathogen Plasmodium knowlesi to continuous culture in human erythrocytes

    KAUST Repository

    Moon, Robert

    2012-12-24

    Research into the aetiological agent of the most widespread form of severe malaria, Plasmodium falciparum, has benefitted enormously from the ability to culture and genetically manipulate blood-stage forms of the parasite in vitro. However, most malaria outside Africa is caused by a distinct Plasmodium species, Plasmodium vivax, and it has become increasingly apparent that zoonotic infection by the closely related simian parasite Plasmodium knowlesi is a frequent cause of life-threatening malaria in regions of southeast Asia. Neither of these important malarial species can be cultured in human cells in vitro, requiring access to primates with the associated ethical and practical constraints. We report the successful adaptation of P. knowlesi to continuous culture in human erythrocytes. Human-adapted P. knowlesi clones maintain their capacity to replicate in monkey erythrocytes and can be genetically modified with unprecedented efficiency, providing an important and unique model for studying conserved aspects of malarial biology as well as species-specific features of an emerging pathogen.

  12. Genetic technologies for extremely thermophilic microorganisms of Sulfolobus, the only genetically tractable genus of crenarchaea.

    Science.gov (United States)

    Peng, Nan; Han, Wenyuan; Li, Yingjun; Liang, Yunxiang; She, Qunxin

    2017-04-01

    Archaea represents the third domain of life, with the information-processing machineries more closely resembling those of eukaryotes than the machineries of the bacterial counterparts but sharing metabolic pathways with organisms of Bacteria, the sister prokaryotic phylum. Archaeal organisms also possess unique features as revealed by genomics and genome comparisons and by biochemical characterization of prominent enzymes. Nevertheless, diverse genetic tools are required for in vivo experiments to verify these interesting discoveries. Considerable efforts have been devoted to the development of genetic tools for archaea ever since their discovery, and great progress has been made in the creation of archaeal genetic tools in the past decade. Versatile genetic toolboxes are now available for several archaeal models, among which Sulfolobus microorganisms are the only genus representing Crenarchaeota because all the remaining genera are from Euryarchaeota. Nevertheless, genetic tools developed for Sulfolobus are probably the most versatile among all archaeal models, and these include viral and plasmid shuttle vectors, conventional and novel genetic manipulation methods, CRISPR-based gene deletion and mutagenesis, and gene silencing, among which CRISPR tools have been reported only for Sulfolobus thus far. In this review, we summarize recent developments in all these useful genetic tools and discuss their possible application to research into archaeal biology by means of Sulfolobus models.

  13. Complexity and Tractability Islands for Combinatorial Auctions on Discrete Intervals with Gaps

    NARCIS (Netherlands)

    Döcker, J.; Dorn, B.; Endriss, U.; Krüger, D.; Kaminka, G.A.; Fox, M.; Bouquet, P.; Hüllermeyer, E.; Dignum, V.; Dignum, F.; van Harmelen, F.

    2016-01-01

    Combinatorial auctions are mechanisms for allocating bundles of goods to agents who each have preferences over these goods. Finding an economically efficient allocation, the so-called winner determination problem, is computationally intractable in the general case, which is why it is important to

  14. Unified tractable model for downlink MIMO cellular networks using stochastic geometry

    KAUST Repository

    Afify, Laila H.; Elsawy, Hesham; Al-Naffouri, Tareq Y.; Alouini, Mohamed-Slim

    2016-01-01

    for simplicity. On the other hand, there are models that sacrifice simplicity to target more tangible performance metrics such as the error probability. Both types of models are completely disjoint in terms of the analytic steps to obtain the performance measures

  15. Analytically tractable climate-carbon cycle feedbacks under 21st century anthropogenic forcing

    Science.gov (United States)

    Lade, Steven J.; Donges, Jonathan F.; Fetzer, Ingo; Anderies, John M.; Beer, Christian; Cornell, Sarah E.; Gasser, Thomas; Norberg, Jon; Richardson, Katherine; Rockström, Johan; Steffen, Will

    2018-05-01

    Changes to climate-carbon cycle feedbacks may significantly affect the Earth system's response to greenhouse gas emissions. These feedbacks are usually analysed from numerical output of complex and arguably opaque Earth system models. Here, we construct a stylised global climate-carbon cycle model, test its output against comprehensive Earth system models, and investigate the strengths of its climate-carbon cycle feedbacks analytically. The analytical expressions we obtain aid understanding of carbon cycle feedbacks and the operation of the carbon cycle. Specific results include that different feedback formalisms measure fundamentally the same climate-carbon cycle processes; temperature dependence of the solubility pump, biological pump, and CO2 solubility all contribute approximately equally to the ocean climate-carbon feedback; and concentration-carbon feedbacks may be more sensitive to future climate change than climate-carbon feedbacks. Simple models such as that developed here also provide workbenches for simple but mechanistically based explorations of Earth system processes, such as interactions and feedbacks between the planetary boundaries, that are currently too uncertain to be included in comprehensive Earth system models.

  16. Tractability Conditions for Disc Ploughing on a Loamy Sand Soil in ...

    African Journals Online (AJOL)

    -Ecological Zone. ... drawbar pull, soil cone index and tyre slip generated and analyzed using regression analysis, were used to establish empirical trafficability prediction equations; which are useful in studies of soil-machine interactions.

  17. The reduced kinome of Ostreococcus tauri: core eukaryotic signalling components in a tractable model species.

    Science.gov (United States)

    Hindle, Matthew M; Martin, Sarah F; Noordally, Zeenat B; van Ooijen, Gerben; Barrios-Llerena, Martin E; Simpson, T Ian; Le Bihan, Thierry; Millar, Andrew J

    2014-08-02

    The current knowledge of eukaryote signalling originates from phenotypically diverse organisms. There is a pressing need to identify conserved signalling components among eukaryotes, which will lead to the transfer of knowledge across kingdoms. Two useful properties of a eukaryote model for signalling are (1) reduced signalling complexity, and (2) conservation of signalling components. The alga Ostreococcus tauri is described as the smallest free-living eukaryote. With less than 8,000 genes, it represents a highly constrained genomic palette. Our survey revealed 133 protein kinases and 34 protein phosphatases (1.7% and 0.4% of the proteome). We conducted phosphoproteomic experiments and constructed domain structures and phylogenies for the catalytic protein-kinases. For each of the major kinases families we review the completeness and divergence of O. tauri representatives in comparison to the well-studied kinomes of the laboratory models Arabidopsis thaliana and Saccharomyces cerevisiae, and of Homo sapiens. Many kinase clades in O. tauri were reduced to a single member, in preference to the loss of family diversity, whereas TKL and ABC1 clades were expanded. We also identified kinases that have been lost in A. thaliana but retained in O. tauri. For three, contrasting eukaryotic pathways - TOR, MAPK, and the circadian clock - we established the subset of conserved components and demonstrate conserved sites of substrate phosphorylation and kinase motifs. We conclude that O. tauri satisfies our two central requirements. Several of its kinases are more closely related to H. sapiens orthologs than S. cerevisiae is to H. sapiens. The greatly reduced kinome of O. tauri is therefore a suitable model for signalling in free-living eukaryotes.

  18. Drosophila growth cones: a genetically tractable platform for the analysis of axonal growth dynamics.

    Science.gov (United States)

    Sánchez-Soriano, Natalia; Gonçalves-Pimentel, Catarina; Beaven, Robin; Haessler, Ulrike; Ofner-Ziegenfuss, Lisa; Ballestrem, Christoph; Prokop, Andreas

    2010-01-01

    The formation of neuronal networks, during development and regeneration, requires outgrowth of axons along reproducible paths toward their appropriate postsynaptic target cells. Axonal extension occurs at growth cones (GCs) at the tips of axons. GC advance and navigation requires the activity of their cytoskeletal networks, comprising filamentous actin (F-actin) in lamellipodia and filopodia as well as dynamic microtubules (MTs) emanating from bundles of the axonal core. The molecular mechanisms governing these two cytoskeletal networks, their cross-talk, and their response to extracellular signaling cues are only partially understood, hindering our conceptual understanding of how regulated changes in GC behavior are controlled. Here, we introduce Drosophila GCs as a suitable model to address these mechanisms. Morphological and cytoskeletal readouts of Drosophila GCs are similar to those of other models, including mammals, as demonstrated here for MT and F-actin dynamics, axonal growth rates, filopodial structure and motility, organizational principles of MT networks, and subcellular marker localization. Therefore, we expect fundamental insights gained in Drosophila to be translatable into vertebrate biology. The advantage of the Drosophila model over others is its enormous amenability to combinatorial genetics as a powerful strategy to address the complexity of regulatory networks governing axonal growth. Thus, using pharmacological and genetic manipulations, we demonstrate a role of the actin cytoskeleton in a specific form of MT organization (loop formation), known to regulate GC pausing behavior. We demonstrate these events to be mediated by the actin-MT linking factor Short stop, thus identifying an essential molecular player in this context.

  19. An empirically tractable model of optimal oil spills prevention in Russian sea harbours

    Energy Technology Data Exchange (ETDEWEB)

    Deissenberg, C. [CEFI-CNRS, Les Milles (France); Gurman, V.; Tsirlin, A. [RAS, Program Systems Inst., Pereslavl-Zalessky (Russian Federation); Ryumina, E. [Russian Academy of Sciences, Moscow (Russian Federation). Inst. of Economic Market Problems

    2001-07-01

    Based on previous theoretical work by Gottinger (1997, 1998), we propose a simple model of optimal monitoring of oil-related activities in harbour areas that is suitable for empirical estimation within the Russian-Ukrainian context, in spite of the poor availability of data in these countries. Specifically, the model indicates how to best allocate at the steady state a given monitoring budget between different monitoring activities. An approximate analytical solution to the optimization problem is derived, and a simple procedure for estimating the model on the basis of the actually available data is suggested. An application using data obtained for several harbours of the Black and Baltic Seas is given. It suggests that the current Russian monitoring practice could be much improved by better allocating the available monitoring resources. (Author)

  20. Adaptation of the genetically tractable malaria pathogen Plasmodium knowlesi to continuous culture in human erythrocytes

    KAUST Repository

    Moon, Robert; Hall, Joanna M.; Rangkuti, Farania; Ho, YungShwen; Almond, Neil M.; Mitchell, Graham Howard; Pain, Arnab; Holder, Anthony A.; Blackman, Michael J.

    2012-01-01

    Research into the aetiological agent of the most widespread form of severe malaria, Plasmodium falciparum, has benefitted enormously from the ability to culture and genetically manipulate blood-stage forms of the parasite in vitro. However, most malaria outside Africa is caused by a distinct Plasmodium species, Plasmodium vivax, and it has become increasingly apparent that zoonotic infection by the closely related simian parasite Plasmodium knowlesi is a frequent cause of life-threatening malaria in regions of southeast Asia. Neither of these important malarial species can be cultured in human cells in vitro, requiring access to primates with the associated ethical and practical constraints. We report the successful adaptation of P. knowlesi to continuous culture in human erythrocytes. Human-adapted P. knowlesi clones maintain their capacity to replicate in monkey erythrocytes and can be genetically modified with unprecedented efficiency, providing an important and unique model for studying conserved aspects of malarial biology as well as species-specific features of an emerging pathogen.

  1. A Tractable Estimate for the Dissipation Range Onset Wavenumber Throughout the Heliosphere

    Science.gov (United States)

    Engelbrecht, N. Eugene; Strauss, R. Du Toit

    2018-04-01

    The modulation of low-energy electrons in the heliosphere is extremely sensitive to the behavior of the dissipation range slab turbulence. The present study derives approximate expressions for the wavenumber at which the dissipation range on the slab turbulence power spectrum commences, by assuming that this onset occurs when dispersive waves propagating parallel to the background magnetic field gyroresonate with thermal plasma particles. This assumption yields results in reasonable agreement with existing spacecraft observations. These expressions are functions of the solar wind proton and electron temperatures, which are here modeled throughout the region where the solar wind is supersonic using a two-component turbulence transport model. The results so acquired are compared with extrapolations of existing models for the dissipation range onset wavenumber, and conclusions are drawn therefrom.

  2. Tractable Stochastic Geometry Model for IoT Access in LTE Networks

    KAUST Repository

    Gharbieh, Mohammad

    2017-02-07

    The Internet of Things (IoT) is large-scale by nature. This is not only manifested by the large number of connected devices, but also by the high volumes of traffic that must be accommodated. Cellular networks are indeed a natural candidate for the data tsunami the IoT is expected to generate in conjunction with legacy human-type traffic. However, the random access process for scheduling request represents a major bottleneck to support IoT via LTE cellular networks. Accordingly, this paper develops a mathematical framework to model and study the random access channel (RACH) scalability to accommodate IoT traffic. The developed model is based on stochastic geometry and discrete time Markov chains (DTMC) to account for different access strategies and possible sources of inter-cell and intra-cell interferences. To this end, the developed model is utilized to assess and compare three different access strategies, which incorporate a combination of transmission persistency, back-off, and power ramping. The analysis and the results showcased herewith clearly illustrate the vulnerability of the random access procedure as the IoT intensity grows. Finally, the paper offers insights into effective scenarios for each transmission strategy in terms of IoT intensity and RACH detection thresholds.

  3. Dreaming as an Extension of Waking Conscious Experience and a Tractable Problem for Cognitive Neuroscience

    Directory of Open Access Journals (Sweden)

    Erin J. Wamsley

    2013-09-01

    Full Text Available Even when we are ostensibly doing nothing – as during states of rest, sleep, and reverie – the brain continues to process information. In resting wakefulness, the mind generates thoughts, plans for the future, and imagines fictitious scenarios. In sleep, when the demands of sensory input are reduced, our experience turns to the thoughts and images we call dreaming. Far from being a meaningless distraction, the content of these subjective experiences provides an important and unique source of information about the activities of the resting mind and brain. In both wakefulness and sleep, spontaneous experience combines recent and remote memory fragments into novel scenarios. These conscious experiences may reflect the consolidation of recent memory into long-term storage, an adaptive process that functions to extract general knowledge about the world and adaptively respond to future events. Recent examples from psychology and neuroscience demonstrate that the use of subjective report can provide clues to the function(s of rest and sleep.

  4. A Tractable Model of the LTE Access Reservation Procedure for Machine-Type Communications

    DEFF Research Database (Denmark)

    Nielsen, Jimmy Jessen; Min Kim, Dong; Madueño, Germán Corrales

    2015-01-01

    A canonical scenario in Machine-Type Communications (MTC) is the one featuring a large number of devices, each of them with sporadic traffic. Hence, the number of served devices in a single LTE cell is not determined by the available aggregate rate, but rather by the limitations of the LTE access...

  5. Simulation Interoperability (Interoperabilite de la simulation)

    Science.gov (United States)

    2015-01-01

    dans les environnements de simulation (distribuée) ». Ce guide augmente le DSEEP relativement à l’élaboration des scénarios et propose un contenu et...Recommandations de mise à jour de l’AMSP-01 [AMSP-01] relativement à l’interopérabilité de la simulation et au développement des scénarios...detectable that are not included. • The effect of losses on morale in a constructive simulation system which would impair effectiveness is difficult to

  6. USU Patient Simulation Center

    Data.gov (United States)

    Federal Laboratory Consortium — he National Capital Area (NCA) Medical Simulation Center is a state-of-the-art training facility located near the main USU campus. It uses simulated patients (i.e.,...

  7. LOADING SIMULATION PROGRAM C

    Data.gov (United States)

    U.S. Environmental Protection Agency — LSPC is the Loading Simulation Program in C++, a watershed modeling system that includes streamlined Hydrologic Simulation Program Fortran (HSPF) algorithms for...

  8. Traffic management simulation development.

    Science.gov (United States)

    2011-01-03

    Microscopic simulation can provide significant support to traffic management center (TMC) operations. However, traffic simulation applications require data that are expensive and time-consuming to collect. Data collected by TMCs can be used as a prim...

  9. Analogue circuits simulation

    Energy Technology Data Exchange (ETDEWEB)

    Mendo, C

    1988-09-01

    Most analogue simulators have evolved from SPICE. The history and description of SPICE-like simulators are given. From a mathematical formulation of the electronic circuit the following analysis are possible: DC, AC, transient, noise, distortion, Worst Case and Statistical.

  10. GPS Satellite Simulation Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The GPS satellite simulation facility consists of a GPS satellite simulator controlled by either a Silicon Graphics Origin 2000 or PC depending upon unit under test...

  11. BISEN: Biochemical simulation environment

    NARCIS (Netherlands)

    Vanlier, J.; Wu, F.; Qi, F.; Vinnakota, K.C.; Han, Y.; Dash, R.K.; Yang, F.; Beard, D.A.

    2009-01-01

    The Biochemical Simulation Environment (BISEN) is a suite of tools for generating equations and associated computer programs for simulating biochemical systems in the MATLAB® computing environment. This is the first package that can generate appropriate systems of differential equations for

  12. Ride Motion Simulator (RMS)

    Data.gov (United States)

    Federal Laboratory Consortium — The RMS is a simulator designed for crew station and man-in-the-loop experimentation. The simulator immerses users in a synthetic battlefield to experience realistic...

  13. Airflow Simulation Techniques

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    The paper describes the development in airflow simulations in rooms . The research is, as other areas of flow research, influenced by the decreasing cost of computation which seems to indicate an increased use of airflow simulation in the coming years.......The paper describes the development in airflow simulations in rooms . The research is, as other areas of flow research, influenced by the decreasing cost of computation which seems to indicate an increased use of airflow simulation in the coming years....

  14. Simulation in Sport Finance

    OpenAIRE

    Joris, Drayer; Daniel, Rascher

    2010-01-01

    Simulations have long been used in business schools to give students experience making real-world decisions in a relatively low-risk environment. The OAKLAND A’S BASEBALL BUSINESS SIMULATOR takes a traditional business simulation and applies it to the sport industry where sales of tangible products are replaced by sales of an experience provided to fans. The simulator asks students to make decisions about prices for concessions, parking, and merchandise, player payroll expenses, funding for...

  15. Simulating Supernova Light Curves

    International Nuclear Information System (INIS)

    Even, Wesley Paul; Dolence, Joshua C.

    2016-01-01

    This report discusses supernova light simulations. A brief review of supernovae, basics of supernova light curves, simulation tools used at LANL, and supernova results are included. Further, it happens that many of the same methods used to generate simulated supernova light curves can also be used to model the emission from fireballs generated by explosions in the earth's atmosphere.

  16. Simulation in Sport Finance

    Science.gov (United States)

    Drayer, Joris; Rascher, Dan

    2010-01-01

    Simulations have long been used in business schools to give students experience making real-world decisions in a relatively low risk environment. The OAKLAND A'S BASEBALL BUSINESS SIMULATOR takes a traditional business simulation and applies it to the sport industry, in which sales of tangible products are replaced by sales of experiences provided…

  17. Parallel reservoir simulator computations

    International Nuclear Information System (INIS)

    Hemanth-Kumar, K.; Young, L.C.

    1995-01-01

    The adaptation of a reservoir simulator for parallel computations is described. The simulator was originally designed for vector processors. It performs approximately 99% of its calculations in vector/parallel mode and relative to scalar calculations it achieves speedups of 65 and 81 for black oil and EOS simulations, respectively on the CRAY C-90

  18. Simulating Supernova Light Curves

    Energy Technology Data Exchange (ETDEWEB)

    Even, Wesley Paul [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dolence, Joshua C. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-05-05

    This report discusses supernova light simulations. A brief review of supernovae, basics of supernova light curves, simulation tools used at LANL, and supernova results are included. Further, it happens that many of the same methods used to generate simulated supernova light curves can also be used to model the emission from fireballs generated by explosions in the earth’s atmosphere.

  19. Simulators in driver training.

    NARCIS (Netherlands)

    2009-01-01

    In 2010, about 150 driving simulators were being used for the basic driver training in the Netherlands. According to theories about how people learn, simulator training has both advantages and disadvantages. In order to be able to learn something from a simulator, its technical quality must be

  20. Simulation and psychology

    DEFF Research Database (Denmark)

    Dieckmann, Peter; Krage, Ralf

    2013-01-01

    Psychology is relevant for improving the use of simulation in anesthesiology, as it allows us to describe, explain and optimize the interactions of learners and instructors as well as the design of simulation scenarios and debriefings. Much psychological expertise is not used for simulation...

  1. Teaching with simulations

    NARCIS (Netherlands)

    Rutten, N.P.G.

    2014-01-01

    This dissertation focuses on whole-class science teaching with computer simulations. Computer simulations display dynamic, visual representations of natural phenomena and can make a great contribution to the science classroom. Simulations can be used in multiple ways. Teachers who have an

  2. CAISSON: Interconnect Network Simulator

    Science.gov (United States)

    Springer, Paul L.

    2006-01-01

    Cray response to HPCS initiative. Model future petaflop computer interconnect. Parallel discrete event simulation techniques for large scale network simulation. Built on WarpIV engine. Run on laptop and Altix 3000. Can be sized up to 1000 simulated nodes per host node. Good parallel scaling characteristics. Flexible: multiple injectors, arbitration strategies, queue iterators, network topologies.

  3. Today's Business Simulation Industry

    Science.gov (United States)

    Summers, Gary J.

    2004-01-01

    New technologies are transforming the business simulation industry. The technologies come from research in computational fields of science, and they endow simulations with new capabilities and qualities. These capabilities and qualities include computerized behavioral simulations, online feedback and coaching, advanced interfaces, learning on…

  4. Discrete-Event Simulation

    OpenAIRE

    Prateek Sharma

    2015-01-01

    Abstract Simulation can be regarded as the emulation of the behavior of a real-world system over an interval of time. The process of simulation relies upon the generation of the history of a system and then analyzing that history to predict the outcome and improve the working of real systems. Simulations can be of various kinds but the topic of interest here is one of the most important kind of simulation which is Discrete-Event Simulation which models the system as a discrete sequence of ev...

  5. Simulation modeling and arena

    CERN Document Server

    Rossetti, Manuel D

    2015-01-01

    Emphasizes a hands-on approach to learning statistical analysis and model building through the use of comprehensive examples, problems sets, and software applications With a unique blend of theory and applications, Simulation Modeling and Arena®, Second Edition integrates coverage of statistical analysis and model building to emphasize the importance of both topics in simulation. Featuring introductory coverage on how simulation works and why it matters, the Second Edition expands coverage on static simulation and the applications of spreadsheets to perform simulation. The new edition als

  6. Simulation in bronchoscopy

    DEFF Research Database (Denmark)

    Nilsson, Philip Mørkeberg; Naur, Therese Maria Henriette; Clementsen, Paul Frost

    2017-01-01

    , and the training should be structured as distributed practice with mastery learning criteria (ie, training until a certain level of competence is achieved). Dyad practice (training in pairs) is possible and may increase utility of available simulators. Trainee performance should be assessed with assessment tools......Objective: To provide an overview of current literature that informs how to approach simulation practice of bronchoscopy and discuss how findings from other simulation research can help inform the use of simulation in bronchoscopy training. Summary: We conducted a literature search on simulation...

  7. NS simulator for beginners

    CERN Document Server

    Altman, Eitan

    2012-01-01

    NS-2 is an open-source discrete event network simulator which is widely used by both the research community as well as by the people involved in the standardization protocols of IETF. The goal of this book is twofold: on one hand to learn how to use the NS-2 simulator, and on the other hand, to become acquainted with and to understand the operation of some of the simulated objects using NS-2 simulations. The book is intended to help students, engineers or researchers who need not have much background in programming or who want to learn through simple examples how to analyse some simulated obje

  8. LOFT Engineering Simulator

    International Nuclear Information System (INIS)

    Venhuizen, J.R.

    1982-02-01

    The LOFT Engineering Simulator was developed to supply plant equivalent data for evaluating graphic aids and advanced control concepts for nuclear plant operators. The Simulator, a combination of hardware and software, combines some of the features of best estimate (safety analysis) computer codes with reactor operator training simulators. The LOFT Engineering Simulator represents an attempt to develop a simulation with sufficient physical detail (solution of the conservation equations) for moderate accident simulation, but which will still run in real time and provide an interface for the operator to interact with the model. As a result of this combination, a real time simulation of the LOFT plant has been developed which yields realistic transient results. These data can be used for evaluating reactor control room aids such as Safety Parameter Displays and Janus Predictive Displays

  9. Merging Methods to Manage Uncertainty: Combining Simulation Modeling and Scenario Planning to Inform Resource Management Under Climate Change

    Science.gov (United States)

    Miller, B. W.; Schuurman, G. W.; Symstad, A.; Fisichelli, N. A.; Frid, L.

    2017-12-01

    Managing natural resources in this era of anthropogenic climate change is fraught with uncertainties around how ecosystems will respond to management actions and a changing climate. Scenario planning (oftentimes implemented as a qualitative, participatory exercise for exploring multiple possible futures) is a valuable tool for addressing this challenge. However, this approach may face limits in resolving responses of complex systems to altered climate and management conditions, and may not provide the scientific credibility that managers often require to support actions that depart from current practice. Quantitative information on projected climate changes and ecological responses is rapidly growing and evolving, but this information is often not at a scale or in a form that is `actionable' for resource managers. We describe a project that sought to create usable information for resource managers in the northern Great Plains by combining qualitative and quantitative methods. In particular, researchers, resource managers, and climate adaptation specialists co-produced a simulation model in conjunction with scenario planning workshops to inform natural resource management in southwest South Dakota. Scenario planning for a wide range of resources facilitated open-minded thinking about a set of divergent and challenging, yet relevant and plausible, climate scenarios and management alternatives that could be implemented in the simulation. With stakeholder input throughout the process, we built a simulation of key vegetation types, grazing, exotic plants, fire, and the effects of climate and management on rangeland productivity and composition. By simulating multiple land management jurisdictions, climate scenarios, and management alternatives, the model highlighted important tradeoffs between herd sizes and vegetation composition, and between the short- versus long-term costs of invasive species management. It also identified impactful uncertainties related to the

  10. Simulator configuration management system

    International Nuclear Information System (INIS)

    Faulent, J.; Brooks, J.G.

    1990-01-01

    The proposed revisions to ANS 3.5-1985 (Section 5) require Utilities to establish a simulator Configuration Management System (CMS). The proposed CMS must be capable of: Establishing and maintaining a simulator design database. Identifying and documenting differences between the simulator and its reference plant. Tracking the resolution of identified differences. Recording data to support simulator certification, testing and maintenance. This paper discusses a CMS capable of meeting the proposed requirements contained in ANS 3.5. The system will utilize a personal computer and a relational database management software to construct a simulator design database. The database will contain records to all reference nuclear plant data used in designing the simulator, as well as records identifying all the software, hardware and documentation making up the simulator. Using the relational powers of the database management software, reports will be generated identifying the impact of reference plant changes on the operation of the simulator. These reports can then be evaluated in terms of training needs to determine if changes are required for the simulator. If a change is authorized, the CMS will track the change through to its resolution and then incorporate the change into the simulator design database

  11. Reactor refueling machine simulator

    International Nuclear Information System (INIS)

    Rohosky, T.L.; Swidwa, K.J.

    1987-01-01

    This patent describes in combination: a nuclear reactor; a refueling machine having a bridge, trolley and hoist each driven by a separate motor having feedback means for generating a feedback signal indicative of movement thereof. The motors are operable to position the refueling machine over the nuclear reactor for refueling the same. The refueling machine also has a removable control console including means for selectively generating separate motor signals for operating the bridge, trolley and hoist motors and for processing the feedback signals to generate an indication of the positions thereof, separate output leads connecting each of the motor signals to the respective refueling machine motor, and separate input leads for connecting each of the feedback means to the console; and a portable simulator unit comprising: a single simulator motor; a single simulator feedback signal generator connected to the simulator motor for generating a simulator feedback signal in response to operation of the simulator motor; means for selectively connecting the output leads of the console to the simulator unit in place of the refueling machine motors, and for connecting the console input leads to the simulator unit in place of the refueling machine motor feedback means; and means for driving the single simulator motor in response to any of the bridge, trolley or hoist motor signals generated by the console and means for applying the simulator feedback signal to the console input lead associated with the motor signal being generated by the control console

  12. Parallel Atomistic Simulations

    Energy Technology Data Exchange (ETDEWEB)

    HEFFELFINGER,GRANT S.

    2000-01-18

    Algorithms developed to enable the use of atomistic molecular simulation methods with parallel computers are reviewed. Methods appropriate for bonded as well as non-bonded (and charged) interactions are included. While strategies for obtaining parallel molecular simulations have been developed for the full variety of atomistic simulation methods, molecular dynamics and Monte Carlo have received the most attention. Three main types of parallel molecular dynamics simulations have been developed, the replicated data decomposition, the spatial decomposition, and the force decomposition. For Monte Carlo simulations, parallel algorithms have been developed which can be divided into two categories, those which require a modified Markov chain and those which do not. Parallel algorithms developed for other simulation methods such as Gibbs ensemble Monte Carlo, grand canonical molecular dynamics, and Monte Carlo methods for protein structure determination are also reviewed and issues such as how to measure parallel efficiency, especially in the case of parallel Monte Carlo algorithms with modified Markov chains are discussed.

  13. Discrete-Event Simulation

    Directory of Open Access Journals (Sweden)

    Prateek Sharma

    2015-04-01

    Full Text Available Abstract Simulation can be regarded as the emulation of the behavior of a real-world system over an interval of time. The process of simulation relies upon the generation of the history of a system and then analyzing that history to predict the outcome and improve the working of real systems. Simulations can be of various kinds but the topic of interest here is one of the most important kind of simulation which is Discrete-Event Simulation which models the system as a discrete sequence of events in time. So this paper aims at introducing about Discrete-Event Simulation and analyzing how it is beneficial to the real world systems.

  14. Developing Software Simulations

    Directory of Open Access Journals (Sweden)

    Tom Hall

    2007-06-01

    Full Text Available Programs in education and business often require learners to develop and demonstrate competence in specified areas and then be able to effectively apply this knowledge. One method to aid in developing a skill set in these areas is through the use of software simulations. These simulations can be used for learner demonstrations of competencies in a specified course as well as a review of the basic skills at the beginning of subsequent courses. The first section of this paper discusses ToolBook, the software used to develop our software simulations. The second section discusses the process of developing software simulations. The third part discusses how we have used software simulations to assess student knowledge of research design by providing simulations that allow the student to practice using SPSS and Excel.

  15. Packet Tracer network simulator

    CERN Document Server

    Jesin, A

    2014-01-01

    A practical, fast-paced guide that gives you all the information you need to successfully create networks and simulate them using Packet Tracer.Packet Tracer Network Simulator is aimed at students, instructors, and network administrators who wish to use this simulator to learn how to perform networking instead of investing in expensive, specialized hardware. This book assumes that you have a good amount of Cisco networking knowledge, and it will focus more on Packet Tracer rather than networking.

  16. [Simulation in pediatric surgery].

    Science.gov (United States)

    Becmeur, François; Lacreuse, Isabelle; Soler, Luc

    2011-11-01

    Simulation in paediatric surgery is essential for educational, ethical, medicolegal and economic reasons, and is particularly important for rare procedures. There are three different levels of simulation:--simulation of basic techniques in order to learn or improve surgical skills (dissection, intracorporeal knots, etc.);--preparation for surgery using virtual reality, to perfect and test various procedures on a virtual patient, and to determine the best approaches for individual cases;--behavioral simulation underlines the importance of the preoperative check-list and facilitates crisis management (complications, conversion, etc.).

  17. Clinical simulation practise framework.

    Science.gov (United States)

    Khalili, Hossein

    2015-02-01

    Historically, simulation has mainly been used to teach students hands-on skills in a relatively safe environment. With changes in the patient population, professional regulations and clinical environments, clinical simulation practise (CSP) must assist students to integrate and apply their theoretical knowledge and skills with their critical thinking, clinical judgement, prioritisation, problem solving, decision making, and teamwork skills to provide holistic care and treatment to their patients. CSP holds great potential to derive a positive transformation in students' transition into the workplace, by associating and consolidating learning from classrooms to clinical settings, and creating bridges between theory and practice. For CSP to be successful in filling the gap, the design and management of the simulation is crucial. In this article a new framework called 'Clinical simulation practise framework: A knowledge to action strategy in health professional education' is being introduced that aims to assist educators and curriculum developers in designing and managing their simulations. This CSP framework theorises that simulation as an experiential educational tool could improve students' competence, confidence and collaboration in performing professional practice in real settings if the CSP provides the following three dimensions: (1) a safe, positive, reflective and fun simulated learning environment; (2) challenging, but realistic, and integrated simulated scenarios; and (3) interactive, inclusive, interprofessional patient-centred simulated practise. © 2015 John Wiley & Sons Ltd.

  18. Nuclear ship engineering simulator

    International Nuclear Information System (INIS)

    Itoh, Yasuyoshi; Kusunoki, Tsuyoshi; Hashidate, Koji

    1991-01-01

    The nuclear ship engineering simulator, which analyzes overall system response of nuclear ship numerically, is now being developed by JAERI as an advanced design tool with the latest computer technology in software and hardware. The development of the nuclear ship engineering simulator aims at grasping characteristics of a reactor plant under the situation generated by the combination of ocean, a ship hull and a reactor. The data from various tests with the nuclear ship 'MUTSU' will be used for this simulator to modulate and verify its functions of reproducing realistic response of nuclear ship, and then the simulator will be utilized for the research and development of advanced marine reactors. (author)

  19. Aviation Safety Simulation Model

    Science.gov (United States)

    Houser, Scott; Yackovetsky, Robert (Technical Monitor)

    2001-01-01

    The Aviation Safety Simulation Model is a software tool that enables users to configure a terrain, a flight path, and an aircraft and simulate the aircraft's flight along the path. The simulation monitors the aircraft's proximity to terrain obstructions, and reports when the aircraft violates accepted minimum distances from an obstruction. This model design facilitates future enhancements to address other flight safety issues, particularly air and runway traffic scenarios. This report shows the user how to build a simulation scenario and run it. It also explains the model's output.

  20. Elaboración de material didáctico para mejorar el aprendizaje en el área de matemáticas con los niños del séptimo año de Educación Básica de la escuela Daniel Villagómez, parroquia Tayuza, cantón Santiago, de la provincia de Morona Santiago 2010-2011

    OpenAIRE

    Villalta López, Tránsito Guadalupe

    2011-01-01

    El presente trabajo trata de la elaboración de material didáctico para el área de matemáticas, específicamente para el séptimo año de educación básica de la escuela Daniel Villagómez, perteneciente a la parroquia Tayuza, cantón Santiago provincia de Morona Santiago, debido a que los niños y niñas tienen un bajo rendimiento en la asignatura de matemáticas y con el material didáctico se quiere promover un aprendizaje interactivo, mediante la manipulación y los profesores, pueden ver sus esfuerz...

  1. IPCC AR4 Simulations

    Indian Academy of Sciences (India)

    Future climate simulations (initial conditions from end of the 20th Century simulation):. “Committed Climate Change”: hold concentrations at year 2000; SRES A2 to 2100; SRES A1B to 2100 then fix concentrations (~720 ppm) for an additional century (with one realization extended to 2300); As above but with SRES B1 ...

  2. Tokamak control simulator

    International Nuclear Information System (INIS)

    Edelbaum, T.N.; Serben, S.; Var, R.E.

    1976-01-01

    A computer model of a tokamak experimental power reactor and its control system is being constructed. This simulator will allow the exploration of various open loop and closed loop strategies for reactor control. This paper provides a brief description of the simulator and some of the potential control problems associated with this class of tokamaks

  3. Interactive Foresight Simulation

    DEFF Research Database (Denmark)

    Hansen, Mette Sanne; Rasmussen, Lauge Baungaard; Jacobsen, Peter

    2016-01-01

    The Combined Simulation Approach (CSA) is a way to evaluate risks and address potential unforeseen problems in a more interactive way than what is often observed in practice in companies or sectors. The approach is based on a combination of scenario analysis and discrete-event computer simulation...

  4. Business process simulation revisited

    NARCIS (Netherlands)

    Aalst, van der W.M.P.; Barjis, J.

    2010-01-01

    Computer simulation attempts to "mimic" real-life or hypothetical behavior on a computer to see how processes or systems can be improved and to predict their performance under different circumstances. Simulation has been successfully applied in many disciplines and is considered to be a relevant and

  5. Political Simulations Using Excel

    Science.gov (United States)

    Jackson, Steven F.

    2013-01-01

    Simulations have received considerable attention as a tool to promote problem-solving skills, intense involvement, and high-order thinking among students. Whether semester-long exercises or a single-class session, simulations are often used in areas of conflict studies, diplomatic studies, trade disputes, electoral processes, and policy and legal…

  6. Simulator testing system (STS)

    International Nuclear Information System (INIS)

    Miller, V.N.

    1990-01-01

    In recent years there has been a greater demand placed on the capabilities and time usage of real-time nuclear plant simulators due to NRC, INPO and utilities requirements. The requirements applied to certification, new simulators, upgrades, modifications, and maintenance of the simulators vary; however, they all require the capabilities of the simulator to be tested whether it is for NRC 10CFR55.45b requirements, ATP testing of new simulators, ATP testing of upgrades with or without panels, adding software/hardware due to plant modifications, or analyzing software/hardware problems on the simulator. This paper describes the Simulator Testing System (STS) which addresses each one of these requirements placed on simulators. Special attention will be given to ATP testing of upgrades without the use of control room panels. The capabilities and applications of the four parts of STS which are the Display Control Software (DCS), Procedure Control Software (PCS), Display Generator Software (DGS) and the Procedure Generator Software (PGS) will be reviewed

  7. Beyond Iconic Simulation

    Science.gov (United States)

    Dormans, Joris

    2011-01-01

    Realism remains a prominent topic in game design and industry research; yet, a strong academic case can be made that games are anything, but realistic. This article frames realism in games in semiotic terms as iconic simulation and argues that games can gain expressiveness when they move beyond the current focus on iconic simulation. In parallel…

  8. Simulating Ordinal Data

    Science.gov (United States)

    Ferrari, Pier Alda; Barbiero, Alessandro

    2012-01-01

    The increasing use of ordinal variables in different fields has led to the introduction of new statistical methods for their analysis. The performance of these methods needs to be investigated under a number of experimental conditions. Procedures to simulate from ordinal variables are then required. In this article, we deal with simulation from…

  9. Airport Network Flow Simulator

    Science.gov (United States)

    1978-10-01

    The Airport Network Flow Simulator is a FORTRAN IV simulation of the flow of air traffic in the nation's 600 commercial airports. It calculates for any group of selected airports: (a) the landing and take-off (Type A) delays; and (b) the gate departu...

  10. Electric-car simulation

    Science.gov (United States)

    Chapman, C. P.; Slusser, R. A.

    1980-01-01

    PARAMET, interactive simulation program for parametric studies of electric vehicles, guides user through simulation by menu and series of prompts for input parameters. Program considers aerodynamic drag, rolling resistance, linear and rotational acceleration, and road gradient as forces acting on vehicle.

  11. Approach to simulation effectiveness

    CSIR Research Space (South Africa)

    Goncalves, DPD

    2006-07-01

    Full Text Available ? The context and purpose of simulation are important in answering the question. If the simulation is viewed as a system, it follows that it has stakeholders and requirements originating from the creating system. An important result is that measures...

  12. Simulating Price-Taking

    Science.gov (United States)

    Engelhardt, Lucas M.

    2015-01-01

    In this article, the author presents a price-takers' market simulation geared toward principles-level students. This simulation demonstrates that price-taking behavior is a natural result of the conditions that create perfect competition. In trials, there is a significant degree of price convergence in just three or four rounds. Students find this…

  13. Scientific Modeling and simulations

    CERN Document Server

    Diaz de la Rubia, Tomás

    2009-01-01

    Showcases the conceptual advantages of modeling which, coupled with the unprecedented computing power through simulations, allow scientists to tackle the formibable problems of our society, such as the search for hydrocarbons, understanding the structure of a virus, or the intersection between simulations and real data in extreme environments

  14. Simulator configuration maintenance

    International Nuclear Information System (INIS)

    2006-01-01

    Requirements and recommendations of this section defines NPP personnel activity aimed to the provision of the simulator configuration compliance with the current configuration of the power-generating unit-prototype, standard and technical requirements and describe a monitoring procedure for a set of simulator software and hardware, training, organizational and technical documents

  15. Instructional environments for simulations.

    NARCIS (Netherlands)

    van Berkum, J.J.A.; de Jong, T.

    1991-01-01

    The use of computer simulations in education and training can have substantial advantages over other approaches. In comparison with alternatives such as textbooks, lectures, and tutorial courseware, a simulation-based approach offers the opportunity to learn in a relatively realistic problem-solving

  16. Instructional environments for simulations

    NARCIS (Netherlands)

    van Berkum, Jos J.A.; de Jong, Anthonius J.M.

    1991-01-01

    The use of computer simulations in education and training can have substantial advantages over other approaches. In comparison with alternatives such as textbooks, lectures, and tutorial courseware, a simulation-based approach offers the opportunity to learn in a relatively realistic problem-solving

  17. Simulation of dense colloids

    NARCIS (Netherlands)

    Herrmann, H.J.; Harting, J.D.R.; Hecht, M.; Ben-Naim, E.

    2008-01-01

    We present in this proceeding recent large scale simulations of dense colloids. On one hand we simulate model clay consisting of nanometric aluminum oxide spheres in water using realistic DLVO potentials and a combination of MD and SRD. We find pronounced cluster formation and retrieve the shear

  18. Simulation of quantum computers

    NARCIS (Netherlands)

    De Raedt, H; Michielsen, K; Hams, AH; Miyashita, S; Saito, K; Landau, DP; Lewis, SP; Schuttler, HB

    2001-01-01

    We describe a simulation approach to study the functioning of Quantum Computer hardware. The latter is modeled by a collection of interacting spin-1/2 objects. The time evolution of this spin system maps one-to-one to a quantum program carried out by the Quantum Computer. Our simulation software

  19. Simulation of quantum computers

    NARCIS (Netherlands)

    Raedt, H. De; Michielsen, K.; Hams, A.H.; Miyashita, S.; Saito, K.

    2000-01-01

    We describe a simulation approach to study the functioning of Quantum Computer hardware. The latter is modeled by a collection of interacting spin-1/2 objects. The time evolution of this spin system maps one-to-one to a quantum program carried out by the Quantum Computer. Our simulation software

  20. Risk Management and Simulation

    DEFF Research Database (Denmark)

    Skovmand, David

    2014-01-01

    Review of: Risk Management and Simulation / Aparna Gupta. Boca Raton, FL: CRC Press, 2013, xxix + 491 pp., $99.95(H), ISBN: 978-1-4398-3594-4.......Review of: Risk Management and Simulation / Aparna Gupta. Boca Raton, FL: CRC Press, 2013, xxix + 491 pp., $99.95(H), ISBN: 978-1-4398-3594-4....

  1. Multicore Education through Simulation

    Science.gov (United States)

    Ozturk, O.

    2011-01-01

    A project-oriented course for advanced undergraduate and graduate students is described for simulating multiple processor cores. Simics, a free simulator for academia, was utilized to enable students to explore computer architecture, operating systems, and hardware/software cosimulation. Motivation for including this course in the curriculum is…

  2. Computerized Clinical Simulations.

    Science.gov (United States)

    Reinecker, Lynn

    1985-01-01

    Describes technique involved in designing a clinical simulation problem for the allied health field of respiratory therapy; discusses the structure, content, and scoring categories of the simulation; and provides a sample program which illustrates a programming technique in BASIC, including a program listing and a sample flowchart. (MBR)

  3. Rainfall simulation in education

    Science.gov (United States)

    Peters, Piet; Baartman, Jantiene; Gooren, Harm; Keesstra, Saskia

    2016-04-01

    Rainfall simulation has become an important method for the assessment of soil erosion and soil hydrological processes. For students, rainfall simulation offers an year-round, attractive and active way of experiencing water erosion, while not being dependent on (outdoors) weather conditions. Moreover, using rainfall simulation devices, they can play around with different conditions, including rainfall duration, intensity, soil type, soil cover, soil and water conservation measures, etc. and evaluate their effect on erosion and sediment transport. Rainfall simulators differ in design and scale. At Wageningen University, both BSc and MSc student of the curriculum 'International Land and Water Management' work with different types of rainfall simulation devices in three courses: - A mini rainfall simulator (0.0625m2) is used in the BSc level course 'Introduction to Land Degradation and Remediation'. Groups of students take the mini rainfall simulator with them to a nearby field location and test it for different soil types, varying from clay to more sandy, slope angles and vegetation or litter cover. The groups decide among themselves which factors they want to test and they compare their results and discuss advantage and disadvantage of the mini-rainfall simulator. - A medium sized rainfall simulator (0.238 m2) is used in the MSc level course 'Sustainable Land and Water Management', which is a field practical in Eastern Spain. In this course, a group of students has to develop their own research project and design their field measurement campaign using the transportable rainfall simulator. - Wageningen University has its own large rainfall simulation laboratory, in which a 15 m2 rainfall simulation facility is available for research. In the BSc level course 'Land and Water Engineering' Student groups will build slopes in the rainfall simulator in specially prepared containers. Aim is to experience the behaviour of different soil types or slope angles when (heavy) rain

  4. Cryogenic process simulation

    International Nuclear Information System (INIS)

    Panek, J.; Johnson, S.

    1994-01-01

    Combining accurate fluid property databases with a commercial equation-solving software package running on a desktop computer allows simulation of cryogenic processes without extensive computer programming. Computer simulation can be a powerful tool for process development or optimization. Most engineering simulations to date have required extensive programming skills in languages such as Fortran, Pascal, etc. Authors of simulation code have also usually been responsible for choosing and writing the particular solution algorithm. This paper describes a method of simulating cryogenic processes with a commercial software package on a desktop personal computer that does not require these traditional programming tasks. Applications include modeling of cryogenic refrigerators, heat exchangers, vapor-cooled power leads, vapor pressure thermometers, and various other engineering problems

  5. Hardware Accelerated Simulated Radiography

    International Nuclear Information System (INIS)

    Laney, D; Callahan, S; Max, N; Silva, C; Langer, S; Frank, R

    2005-01-01

    We present the application of hardware accelerated volume rendering algorithms to the simulation of radiographs as an aid to scientists designing experiments, validating simulation codes, and understanding experimental data. The techniques presented take advantage of 32 bit floating point texture capabilities to obtain validated solutions to the radiative transport equation for X-rays. An unsorted hexahedron projection algorithm is presented for curvilinear hexahedra that produces simulated radiographs in the absorption-only regime. A sorted tetrahedral projection algorithm is presented that simulates radiographs of emissive materials. We apply the tetrahedral projection algorithm to the simulation of experimental diagnostics for inertial confinement fusion experiments on a laser at the University of Rochester. We show that the hardware accelerated solution is faster than the current technique used by scientists

  6. A bobsleigh simulator software

    Energy Technology Data Exchange (ETDEWEB)

    Rempfler, Georg S., E-mail: georg.rempfler@alumni.ethz.ch [ETH Zurich, CLA G23.3, IMES—Center of Mechanics (Switzerland); Glocker, Christoph, E-mail: glocker@imes.mavt.ethz.ch [ETH Zurich, CLA J23.1, IMES—Center of Mechanics (Switzerland)

    2016-03-15

    This paper presents a model of the artificial ice track in Whistler, Canada that is based on its construction data, and a model of a two-men bobsleigh consisting of nine rigid bodies, having 13 degrees of freedom and incorporating 17 hard frictional contacts. These models are implemented within a simulator that is capable of performing accurate real time simulations of piloted runs on commonly available PC hardware. The simulation is verified against the results of the official two-men race that took place during the Olympic Winter Games in 2010. The simulator has been used by several professional Swiss pilots during their preparation for the 2014 Olympic Winter Games in Sochi, Russia. The simulator is exploited to analyse and judge the range of possible driving lines regarding speed and runtime improvements. It could also serve to consult track designers about safety issues and sleigh constructors about the expected dynamics on a track.

  7. Massively parallel multicanonical simulations

    Science.gov (United States)

    Gross, Jonathan; Zierenberg, Johannes; Weigel, Martin; Janke, Wolfhard

    2018-03-01

    Generalized-ensemble Monte Carlo simulations such as the multicanonical method and similar techniques are among the most efficient approaches for simulations of systems undergoing discontinuous phase transitions or with rugged free-energy landscapes. As Markov chain methods, they are inherently serial computationally. It was demonstrated recently, however, that a combination of independent simulations that communicate weight updates at variable intervals allows for the efficient utilization of parallel computational resources for multicanonical simulations. Implementing this approach for the many-thread architecture provided by current generations of graphics processing units (GPUs), we show how it can be efficiently employed with of the order of 104 parallel walkers and beyond, thus constituting a versatile tool for Monte Carlo simulations in the era of massively parallel computing. We provide the fully documented source code for the approach applied to the paradigmatic example of the two-dimensional Ising model as starting point and reference for practitioners in the field.

  8. In-Situ Simulation

    DEFF Research Database (Denmark)

    Bjerregaard, Anders Thais; Slot, Susanne; Paltved, Charlotte

    2015-01-01

    , and organisational characteristic. Therefore, it might fail to fully mimic real clinical team processes. Though research on in situ simulation in healthcare is in its infancy, literature is abundant on patient safety and team training1. Patient safety reporting systems that identify risks to patients can improve......Introduction: In situ simulation offers on-site training to healthcare professionals. It refers to a training strategy where simulation technology is integrated into the clinical encounter. Training in the simulation laboratory does not easily tap into situational resources, e.g. individual, team...... patient safety if coupled with training and organisational support. This study explored the use of critical incidents and adverse events reports for in situ simulation and short-term observations were used to create learning objectives and training scenarios. Method: This study used an interventional case...

  9. A bobsleigh simulator software

    International Nuclear Information System (INIS)

    Rempfler, Georg S.; Glocker, Christoph

    2016-01-01

    This paper presents a model of the artificial ice track in Whistler, Canada that is based on its construction data, and a model of a two-men bobsleigh consisting of nine rigid bodies, having 13 degrees of freedom and incorporating 17 hard frictional contacts. These models are implemented within a simulator that is capable of performing accurate real time simulations of piloted runs on commonly available PC hardware. The simulation is verified against the results of the official two-men race that took place during the Olympic Winter Games in 2010. The simulator has been used by several professional Swiss pilots during their preparation for the 2014 Olympic Winter Games in Sochi, Russia. The simulator is exploited to analyse and judge the range of possible driving lines regarding speed and runtime improvements. It could also serve to consult track designers about safety issues and sleigh constructors about the expected dynamics on a track.

  10. Simulation in Complex Modelling

    DEFF Research Database (Denmark)

    Nicholas, Paul; Ramsgaard Thomsen, Mette; Tamke, Martin

    2017-01-01

    This paper will discuss the role of simulation in extended architectural design modelling. As a framing paper, the aim is to present and discuss the role of integrated design simulation and feedback between design and simulation in a series of projects under the Complex Modelling framework. Complex...... performance, engage with high degrees of interdependency and allow the emergence of design agency and feedback between the multiple scales of architectural construction. This paper presents examples for integrated design simulation from a series of projects including Lace Wall, A Bridge Too Far and Inflated...... Restraint developed for the research exhibition Complex Modelling, Meldahls Smedie Gallery, Copenhagen in 2016. Where the direct project aims and outcomes have been reported elsewhere, the aim for this paper is to discuss overarching strategies for working with design integrated simulation....

  11. Handbook of simulation optimization

    CERN Document Server

    Fu, Michael C

    2014-01-01

    The Handbook of Simulation Optimization presents an overview of the state of the art of simulation optimization, providing a survey of the most well-established approaches for optimizing stochastic simulation models and a sampling of recent research advances in theory and methodology. Leading contributors cover such topics as discrete optimization via simulation, ranking and selection, efficient simulation budget allocation, random search methods, response surface methodology, stochastic gradient estimation, stochastic approximation, sample average approximation, stochastic constraints, variance reduction techniques, model-based stochastic search methods and Markov decision processes. This single volume should serve as a reference for those already in the field and as a means for those new to the field for understanding and applying the main approaches. The intended audience includes researchers, practitioners and graduate students in the business/engineering fields of operations research, management science,...

  12. In vitro propagation of miracle berry (Synsepalum dulcificum Daniel ...

    African Journals Online (AJOL)

    SERVER

    2008-02-05

    Feb 5, 2008 ... sour lime, lemon, grape fruits and even vinegar to taste sweet (Rehm and Espig, 1991). Various studies ... 10% coconut water. T. 30% coconut water. U. 0.5 NAA + 0.2 BAP. V. 0.1 NAA + 0.3 BAP. W. 0.5 2,4–D + 0.4 Kinetin. X. 0.2 2,4–D + 0.1 Kinetin. Y. 0.02 2,4–D + 0.01 Kinetin. Z. 0 supplement (control).

  13. Garri Potter povzroslel! / Daniel Radcliffe, Emma Watson ; interv. Stass Tõrkin

    Index Scriptorium Estoniae

    Radcliffe, Daniel, 1989-

    2005-01-01

    Peaosatäitja järjekorras neljandas Potteri ekraniseeringus "Harry Potter ja tulepeeker" endast, oma tegelaskuju arengust. Samas ka lühiintervjuu näitlejanna Emma Watsoniga. Režissöör Mike Newell : Suurbritannia-USA 2005

  14. The Image of Daniel: An Ancient Graphic Organizer

    Science.gov (United States)

    Li, Loretta F.

    2008-01-01

    Teachers who use graphic organizers find that students' memory of important material is strengthened. Graphic organizers also lend themselves to the presentation of material in an interdisciplinary fashion. An example of a successful graphic organizer from religion and ancient history is the image of Nebuchadnezzar's dream that was interpreted by…

  15. Cracks show in African Commission | Daniels | Africa Insight

    African Journals Online (AJOL)

    Far from providing leadership, the African Commission is riven with regional, linguistic and religious rivalries. http://dx.doi.org/10.4314/ai.v31i4.22383 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  16. Cracks show in African Commission | Daniels | Africa Insight

    African Journals Online (AJOL)

    Far from providing leadership, the African Commission is riven with regional, linguistic and religious rivalries. Article Metrics. Metrics Loading ... Metrics powered by PLOS ALM · http://dx.doi.org/10.4314/ai.v31i4.22383 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors. OTHER ...

  17. Developing a database for maize variety in Nigeria | Daniel | Moor ...

    African Journals Online (AJOL)

    Performance data of maize varieties at different locations needs to be accurate and accessible to stimulate the improvement of the Nigerian maize seed system. This paper describes a database model to implement a simple computerized information system for maize varieties and their performance at various locations in ...

  18. On Emotional Intelligence: A Conversation with Daniel Goleman.

    Science.gov (United States)

    O'Neil, John

    1996-01-01

    Emotional intelligence involves a cluster of skills, including self-control, zeal, persistence, and self-motivation. Every child must be taught the essentials of handling anger, managing conflicts, developing empathy, and controlling impulses. Schools must help children recognize and manage their emotions. Educators should model emotional…

  19. Former IDRC grantee Daniel Hillel wins World Food Prize | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2016-05-26

    May 26, 2016 ... ... Earth Institute, and is working with the NASA Goddard Institute for Space Studies. ... of Soil-Water Dynamics – A Compendium of Recent Work. ... playing second fiddle to maize and wheat, a shift that's transforming wom.

  20. Letter to Daniel Gilligan of Petroleum Marketers Association of America

    Science.gov (United States)

    A letter in response to a request for the Agency’s view regarding whether several approaches would satisfy 40 CFR §112.7(a)(2)’s “equivalent environmental protection” provision and for clarification of the scope of the requirements in 40 CFR §112.

  1. Kas Euroopa suudab panna vastu islamiseerumisele? / Daniel Pipes

    Index Scriptorium Estoniae

    Pipes, Daniel

    2008-01-01

    Islami levikust Lääne-Euroopas ja põliseurooplaste vastuseisust islamiseerumisele. Moslem Magdi Allami katoliiklusse vastuvõtmisest ja Geert Wildersi filmist "Fitna", mis näitab islami "sisemist kurjust"

  2. Kuidas ma Kremlisse raamatuid viisin / Daniel Märtmaa

    Index Scriptorium Estoniae

    Märtmaa, Daniel

    2004-01-01

    15 aastat tagasi Arnold Rüütli sekretariaadi juhatajana töötanud autor räägib 1989. aasta lõpus toimunud NSV Liidu rahvasaadikute kongressist, kus tunnistati tühiseks MRP-pakti salaprotokollid ning kuhu autor viis raamatuid "1940 god v Estonii : dokumentõ i materialõ" (Tallinn, 1989)

  3. Former IDRC grantee Daniel Hillel wins World Food Prize | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Hillel is currently a Senior Research Scientist at the Center for Climate Systems Research, part of Columbia University's Earth Institute, and is working with the NASA Goddard Institute for Space Studies. He has worked with many international development agencies, and was an IDRC Research Fellow in 1975. His research ...

  4. The African Hospitalist Fellowship | Daniels | South African Medical ...

    African Journals Online (AJOL)

    The African Paediatric Fellowship Programme is rolling out a training course for newly qualified paediatricians to equip them with the leadership skills to function in complex general paediatric settings. The care of children in Africa carries its own unique demands, from the layering effects of multiple conditions through to ...

  5. 76 FR 14898 - Daniel Boone National Forest Resource Advisory Committee

    Science.gov (United States)

    2011-03-18

    ... Valley Area Development District, 342 Old Whitley Road, London, KY 40744 in a meeting room on the...-mail [email protected] . Individuals who use telecommunication devices for the deaf (TDD) may call the...

  6. 76 FR 6761 - Daniel Boone National Forest Resource Advisory Committee

    Science.gov (United States)

    2011-02-08

    ... held at the Cumberland Valley Area Development District, 342 Old Whitley Road, London, KY 40744 in a...) 745-3100; E-mail [email protected] . Individuals who use telecommunication devices for the deaf (TDD...

  7. Semiotic Text - discovering perspective accidentally / Daniel Edward Allen

    Index Scriptorium Estoniae

    Allen, Daniel Edward, 1966-

    2014-01-01

    Läti fotolaagrist, kus autor tutvus esmakordsest Eesti esimese fotograafi Johannes Pääsukese sajandivanuste töödega, mis andsid talle inspiratsiooni oma kunstiprojekti läbiviimiseks. Pildistamisest minevikus ja tänapäeval

  8. The Daniel Boone Success Story: A Food Service Turnaround.

    Science.gov (United States)

    Miller, Toula

    1991-01-01

    Changes in the marketing and management of a Pennsylvania food service program made it more attractive to students. An increase in student participation and operational efficiency yielded profitability in food service operations. (MLF)

  9. Farrington Daniels Address, 1997. In the service of mankind

    International Nuclear Information System (INIS)

    Koppen, C. van

    1998-01-01

    In the past 5 years the general attitude towards solar energy has turned from negative to positive. This in itself, however, will not accelerate the introduction of solar energy very much. On the contrary, some of the plans and programs following from it are unrealistic and counter-productive. The better way to go is realism and inspiring the best scientists and politicians to take up the vast amount of R and D work and societal restructuring that has still to be done. Energy has become so vital to mankind that solar energy as a substitute for conventional energy sources will be indispensable for maintaining peace. (author)

  10. Vakansiehuis met swembad. Herman Koch. Vertaal deur Daniel ...

    African Journals Online (AJOL)

    - tig minuten (“my verkoopspunt”), maar. “[p]asiënte verwar tyd met aandag”. Marc luistert niet echt, want een huisarts. “hoef mense nie gesond te maak nie” (12). En als ze zich niet laten afschepen, doet hij maar een rectaal touché, want “hulle.

  11. Kus suitsu, seal tuld : [suitsetamisest Hiinas] / Daniel Stone

    Index Scriptorium Estoniae

    Stone, Daniel

    2016-01-01

    Hiinas elab kolmandik maailma suitsetajatest, kes tõmbavad päevas seitse miljardit sigaretti. Maailma Terviseorganisatsioon prognoosib 2050. aastaks Hiinas kolm miljonit tubakaga seotud surmajuhtumit

  12. Basic principles simulators - concept training simulators

    International Nuclear Information System (INIS)

    Benkert, J.

    1986-01-01

    Basic Principles Simulators have the purpose of teaching general concepts, demonstrating and displaying the fundamental physical processes of a plant. They are used to illustrate theory to students and also to provide a preliminary training to the operators, to aquaint them with the basic dynamic interactions of the various systems during the normal operation of a plant, and to show the consequences of the most important and common transients and malfunctions. Basic principles simulators may vary in size from small desk cabinets to large panels. They represent with a certain detail the nuclear and thermohydraulic part of the plant. The availability of video displays allows to present detailed information about process parameters which are not shown on the control panels. In general the overall plant behaviour is represented well. Limitations are mostly found in the areas of logic and control. (orig./HP)

  13. Full-scope training simulators

    International Nuclear Information System (INIS)

    Ugedo, E.

    1986-01-01

    The following topics to be covered in this report are: Reasons justifying the use of full-scope simulators for operator qualification. Full-scope simulator description: the control room, the physical models, the computer complex, the instructor's console. Main features of full-scope simulators. Merits of simulator training. The role of full-scope simulators in the training programs. The process of ordering and acquiring a full-scope simulator. Maintaining and updating simulator capabilities. (orig./GL)

  14. Weightless environment simulation test; Mujuryo simulation shiken

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, K.; Yamamoto, T.; Kato, F. [Kawasaki Heavy Industries, Ltd., Kobe (Japan)

    1997-07-20

    Kawasaki Heavy Industries, Ltd., delivered a Weightless Environment Test System (WETS) to National Space Development Agency of Japan in 1994. This system creates a weightless environment similar to that in space by balancing gravity and buoyancy in the water, and is constituted of a large water tank, facilities to supply air and cooling water to space suits worn in the water, etc. In this report, a weightless environment simulation test and the facilities to supply air and cooling water are described. In the weightless environment simulation test, the astronaut to undergo tests and training wears a space suit quite similar to the suit worn on the orbit, and performs EVA/IVA (extravehicular activities/intravehicular activities) around a JEM (Japanese Experimental Module) mockup installed in the water verifying JEM design specifications, preparing manuals for operations on the orbit, or receives basic space-related drill and training. An EVA weightless environment simulation test No. 3 was accomplished with success in January, 1997, when the supply of breathing water and cooling water to the space suit, etc., were carried out with safety and reliability. 2 refs., 8 figs., 2 tabs.

  15. Simulating 'the right stuff'

    Science.gov (United States)

    Fischetti, M. A.; Truxal, C.

    1985-03-01

    The present investigation is mainly concerned with simulators employed in the training of pilots in the Armed Services and other military personnel, taking into account certain problems and approaches for overcoming them. The use of simulators for training programs has a number of advantages compared to training involving a use of the actual equipment. Questions arise, however, regarding the value of such a training. Thus, it has been said that, while simulators gave students practice in manual skill, they could not teach them to handle the stress of being in a real aircraft. It has also been argued that some tasks are not represented accurately enough for proper training. In response to this criticism, the capacity of the simulators has been greatly improved. However, this development leads to problems related to the cost of simulator training. Attention is given to better visuals for flight simulators, the current generation of graphics imagery and expected improvements, possibilities for reducing flight simulator costs, and advances due to progress in microcomputers.

  16. RFQ simulation code

    International Nuclear Information System (INIS)

    Lysenko, W.P.

    1984-04-01

    We have developed the RFQLIB simulation system to provide a means to systematically generate the new versions of radio-frequency quadrupole (RFQ) linac simulation codes that are required by the constantly changing needs of a research environment. This integrated system simplifies keeping track of the various versions of the simulation code and makes it practical to maintain complete and up-to-date documentation. In this scheme, there is a certain standard version of the simulation code that forms a library upon which new versions are built. To generate a new version of the simulation code, the routines to be modified or added are appended to a standard command file, which contains the commands to compile the new routines and link them to the routines in the library. The library itself is rarely changed. Whenever the library is modified, however, this modification is seen by all versions of the simulation code, which actually exist as different versions of the command file. All code is written according to the rules of structured programming. Modularity is enforced by not using COMMON statements, simplifying the relation of the data flow to a hierarchy diagram. Simulation results are similar to those of the PARMTEQ code, as expected, because of the similar physical model. Different capabilities, such as those for generating beams matched in detail to the structure, are available in the new code for help in testing new ideas in designing RFQ linacs

  17. AEGIS geologic simulation model

    International Nuclear Information System (INIS)

    Foley, M.G.

    1982-01-01

    The Geologic Simulation Model (GSM) is used by the AEGIS (Assessment of Effectiveness of Geologic Isolation Systems) program at the Pacific Northwest Laboratory to simulate the dynamic geology and hydrology of a geologic nuclear waste repository site over a million-year period following repository closure. The GSM helps to organize geologic/hydrologic data; to focus attention on active natural processes by requiring their simulation; and, through interactive simulation and calibration, to reduce subjective evaluations of the geologic system. During each computer run, the GSM produces a million-year geologic history that is possible for the region and the repository site. In addition, the GSM records in permanent history files everything that occurred during that time span. Statistical analyses of data in the history files of several hundred simulations are used to classify typical evolutionary paths, to establish the probabilities associated with deviations from the typical paths, and to determine which types of perturbations of the geologic/hydrologic system, if any, are most likely to occur. These simulations will be evaluated by geologists familiar with the repository region to determine validity of the results. Perturbed systems that are determined to be the most realistic, within whatever probability limits are established, will be used for the analyses that involve radionuclide transport and dose models. The GSM is designed to be continuously refined and updated. Simulation models are site specific, and, although the submodels may have limited general applicability, the input data equirements necessitate detailed characterization of each site before application

  18. Adiabatic quantum simulators

    Directory of Open Access Journals (Sweden)

    J. D. Biamonte

    2011-06-01

    Full Text Available In his famous 1981 talk, Feynman proposed that unlike classical computers, which would presumably experience an exponential slowdown when simulating quantum phenomena, a universal quantum simulator would not. An ideal quantum simulator would be controllable, and built using existing technology. In some cases, moving away from gate-model-based implementations of quantum computing may offer a more feasible solution for particular experimental implementations. Here we consider an adiabatic quantum simulator which simulates the ground state properties of sparse Hamiltonians consisting of one- and two-local interaction terms, using sparse Hamiltonians with at most three-local interactions. Properties of such Hamiltonians can be well approximated with Hamiltonians containing only two-local terms. The register holding the simulated ground state is brought adiabatically into interaction with a probe qubit, followed by a single diabatic gate operation on the probe which then undergoes free evolution until measured. This allows one to recover e.g. the ground state energy of the Hamiltonian being simulated. Given a ground state, this scheme can be used to verify the QMA-complete problem LOCAL HAMILTONIAN, and is therefore likely more powerful than classical computing.

  19. Simulation - Concepts and Applications

    Science.gov (United States)

    Silva, Pedro Sá; Trigo, António; Varajão, João; Pinto, Tiago

    Simulation in last decades has been widely used to analyze the impact of different scenarios in several areas like, for instance, health, military, business, and many others. When well used, it is an excellent tool to analyze alternative actions and to anticipate their impact, in order to rationalize the spending of resources. This paper introduces and resumes some of the main concepts of simulation, identifying and describing: systems; models; entities and attributes; resources; contexts of use; and, in particularly, the discrete-event simulation.

  20. Simulation and Shoulder Dystocia.

    Science.gov (United States)

    Shaddeau, Angela K; Deering, Shad

    2016-12-01

    Shoulder dystocia is an unpredictable obstetric emergency that requires prompt interventions to ensure optimal outcomes. Proper technique is important but difficult to train given the urgent and critical clinical situation. Simulation training for shoulder dystocia allows providers at all levels to practice technical and teamwork skills in a no-risk environment. Programs utilizing simulation training for this emergency have consistently demonstrated improved performance both during practice drills and in actual patients with significantly decreased risks of fetal injury. Given the evidence, simulation training for shoulder dystocia should be conducted at all institutions that provide delivery services.

  1. Casting thermal simulation

    International Nuclear Information System (INIS)

    Shamsuddin bin Sulaiman

    1994-01-01

    The whole of this study is concerned with process simulation in casting processes. This study describes the application of the finite element method as an aid to simulating the thermal design of a high pressure die casting die by analysing the cooling transients in the casting cycle. Two types of investigation were carried out to model the linear and non-linear cooling behavior with consideration of a thermal interface effect. The simulated cooling for different stages were presented in temperature contour form. These illustrate the successful application of the Finite Element Method to model the process and they illustrate the significance of the thermal interface at low pressure

  2. Structural mechanics simulations

    International Nuclear Information System (INIS)

    Biffle, J.H.

    1992-01-01

    Sandia National Laboratory has a very broad structural capability. Work has been performed in support of reentry vehicles, nuclear reactor safety, weapons systems and components, nuclear waste transport, strategic petroleum reserve, nuclear waste storage, wind and solar energy, drilling technology, and submarine programs. The analysis environment contains both commercial and internally developed software. Included are mesh generation capabilities, structural simulation codes, and visual codes for examining simulation results. To effectively simulate a wide variety of physical phenomena, a large number of constitutive models have been developed

  3. Loose Graph Simulations

    DEFF Research Database (Denmark)

    Mansutti, Alessio; Miculan, Marino; Peressotti, Marco

    2017-01-01

    We introduce loose graph simulations (LGS), a new notion about labelled graphs which subsumes in an intuitive and natural way subgraph isomorphism (SGI), regular language pattern matching (RLPM) and graph simulation (GS). Being a unification of all these notions, LGS allows us to express directly...... also problems which are “mixed” instances of previous ones, and hence which would not fit easily in any of them. After the definition and some examples, we show that the problem of finding loose graph simulations is NP-complete, we provide formal translation of SGI, RLPM, and GS into LGSs, and we give...

  4. Simulation of liquid helium

    International Nuclear Information System (INIS)

    Ceperley, D.M.

    1985-07-01

    The author discusses simulation methods for quantum mechanical systems at finite temperatures. Recently it has been shown that static properties of some quantum systems can be obtained by simulation in a straightforward manner using path integrals, albeit with an order of magnitude more computing effort needed than for the corresponding classical systems. Some dynamical information can be gleaned from these simulations as will be discussed below. But this is very limited - there is no quantum version of the molecular dynamics method. The path integral method is illustrated by discussing the application to liquid helium. 12 refs., 8 figs

  5. The panel-free simulator

    International Nuclear Information System (INIS)

    Lucas, G.

    1990-01-01

    This paper reports on a simulator which is a device which simulates a physical object for training purposes. Although effective tools, Simulators posses two primary limitations. First, due to the dynamic nature of the simulated object, the Simulator may require frequent modification to remain an accurate representation. When Simulators are upgraded, modifications often turn out to be expensive. Increasingly, Simulator upgrades are required by regulations, no matter how costly. The second limitation is the number of personnel that can utilize a Simulator simultaneously. Engineers, Instructors, and Students are frequently forced work second and third shifts to obtain Simulator time. A study of existing Simulators by the Power Plant Simulation Division of Link-Miles Corporation spawned a software development project. The purpose of this project was to minimize the limitations of existing Simulators by designing a system to enhance Simulator modifications and usage

  6. Balada del Manzanares de Daniel Sueiro: novela histórica / Daniel Sueiro’s Balada del Manzanares: historical novel

    Directory of Open Access Journals (Sweden)

    Khemais Jouini

    2010-01-01

    Full Text Available Resumen: En este trabajo, se analizan algunos de los aspectos narrativos de Balada del Manzanares: temas, personajes, elementos discursivos, espacio y tiempo. Este análisis permite ver que la obra de Sueiro cumple varias de las normas de la llamada novela histórica que floreció en el panorama narrativo español a partir de 1975. La novela es una de las pocas obras dedicadas al análisis riguroso del franquismo. Así, en cuanto a temática y técnicas narrativas, la novela viene a ser como un paradigma de lo que se venía publicando en España a finales de los años 80.Abstract: In this paper, we analyze some of the narrative aspects of Balada del Manzanares: themes, characters, elements of discourse, space and time. This analysis of Sueiros’ work fulfills several of the rules of the so-called historical novel that flourished in the Spanish narrative scene since 1975. The novel is one of the few works devoted to the rigorous analysis of Franco. Thus, in terms of themes and narrative techniques, the novel is like a paradigm of what was being published in Spain in the late 80s.

  7. Supply Chain Simulation : A Survey

    NARCIS (Netherlands)

    Kleijnen, J.P.C.

    2003-01-01

    This paper provides a survey of simulation in supply chain management.It reviews four types of simulation, namely spreadsheet simulation, system dynamics, discreteevent simulation, and business games.Which simulation type should be applied, depends on the type of managerial question to be answered

  8. TH-EF-204-03: Determination of Small Field Output Factors, Advantages and Limitations of Monte Carlo Simulation

    International Nuclear Information System (INIS)

    Vaque, J. Puxeu

    2016-01-01

    Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions. For appropriate targets, small field radiotherapy offers improved treatment quality by allowing better sparing of organs at risk while delivering the prescribed target dose. Specialized small field treatment delivery systems, such as robotic-controlled linear accelerators, gamma radiosurgery units, and dynamic arc linear accelerators may utilize rigid fixation, image guidance, and tumor tracking, to insure precise dose delivery to static or moving targets. However, in addition to great advantages, small field delivery techniques present special technical challenges for dose calibration due to unique geometries and small field sizes not covered by existing reference dosimetry protocols such as AAPM TG-51 or IAEA TRS 398. In recent years extensive research has been performed to understand small field dosimetry and measurement instrumentation. AAPM, IAEA and ICRU task groups are expected to provide soon recommendations on the dosimetry of small radiation fields. In this symposium we will: 1] discuss the physics, instrumentation, methodologies and challenges for small field radiation dose measurements; 2] review IAEA and ICRU recommendations on prescribing, recording and reporting of small field radiation therapy; 3] discuss selected clinical applications and technical aspects for specialized image-guided, small field, linear accelerator based treatment techniques such as IMRT and SBRT. Learning Objectives: To learn the physics of small fields in contrast to

  9. TH-EF-204-03: Determination of Small Field Output Factors, Advantages and Limitations of Monte Carlo Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Vaque, J. Puxeu [Institut Catala d’Oncologia (Spain)

    2016-06-15

    Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions. For appropriate targets, small field radiotherapy offers improved treatment quality by allowing better sparing of organs at risk while delivering the prescribed target dose. Specialized small field treatment delivery systems, such as robotic-controlled linear accelerators, gamma radiosurgery units, and dynamic arc linear accelerators may utilize rigid fixation, image guidance, and tumor tracking, to insure precise dose delivery to static or moving targets. However, in addition to great advantages, small field delivery techniques present special technical challenges for dose calibration due to unique geometries and small field sizes not covered by existing reference dosimetry protocols such as AAPM TG-51 or IAEA TRS 398. In recent years extensive research has been performed to understand small field dosimetry and measurement instrumentation. AAPM, IAEA and ICRU task groups are expected to provide soon recommendations on the dosimetry of small radiation fields. In this symposium we will: 1] discuss the physics, instrumentation, methodologies and challenges for small field radiation dose measurements; 2] review IAEA and ICRU recommendations on prescribing, recording and reporting of small field radiation therapy; 3] discuss selected clinical applications and technical aspects for specialized image-guided, small field, linear accelerator based treatment techniques such as IMRT and SBRT. Learning Objectives: To learn the physics of small fields in contrast to

  10. Immersive Simulation Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Develops and tests novel user interfaces for 3D virtual simulators and first-person shooter games that make user interaction more like natural interaction...

  11. Mochovce NPP simulator

    International Nuclear Information System (INIS)

    Ziakova, M.

    1998-01-01

    Mochovce NPP simulator basic features and detailed description of its characteristics are presented with its performance, certification and application for training of NPP operators as well as the training scenario

  12. Image simulation using LOCUS

    International Nuclear Information System (INIS)

    Strachan, J.D.; Roberts, J.A.

    1989-09-01

    The LOCUS data base program has been used to simulate images and to solve simple equations. This has been accomplished by making each record (which normally would represent a data entry)represent sequenced or random number pairs

  13. DRI internal Wave Simulations

    National Research Council Canada - National Science Library

    Reynolds, Stephen A; Levine, Murray D

    2005-01-01

    .... A processing module is developed that takes profile estimates as input and uses numerically simulated linear internal wave displacements to create two-dimensional range-dependent sound speed fields...

  14. Simulation of Guardrings

    International Nuclear Information System (INIS)

    Benyamna, M.

    2007-01-01

    The strategy for simulation SILVACO is to provide an evaluation of the values of the internal capacitances of the sensor to validate the assumption of a cross talk and to study the influence of the quardrings on this phenomenon

  15. Chemical Transformation Simulator

    Science.gov (United States)

    The Chemical Transformation Simulator (CTS) is a web-based, high-throughput screening tool that automates the calculation and collection of physicochemical properties for an organic chemical of interest and its predicted products resulting from transformations in environmental sy...

  16. Water Quality Analysis Simulation

    Science.gov (United States)

    The Water Quality analysis simulation Program, an enhancement of the original WASP. This model helps users interpret and predict water quality responses to natural phenomena and man-made pollution for variious pollution management decisions.

  17. Water Quality Analysis Simulation

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Water Quality analysis simulation Program, an enhancement of the original WASP. This model helps users interpret and predict water quality responses to natural...

  18. Fidelity in clinical simulation

    DEFF Research Database (Denmark)

    Jensen, Sanne; Nøhr, Christian; Rasmussen, Stine Loft

    2013-01-01

    Clinical simulation may be used to identify user needs for context sensitive functionalities in e-Health. The objective with this paper is to describe how user requirements and use cases in a large EHR-platform procurement may be validated by clinical simulation using a very low-fidelity prototype...... without any existing test data. Instead of using test scenarios and use cases, the healthcare professionals who are participating in the clinical simulation are generating both scenario and patient data themselves. We found that this approach allows for an imaginative discussion, not restricted by known...... functionalities and limitations, of the ideal EHR-platform. Subsequently, we discuss benefits and challenges of using an extremely low fidelity environment and discuss the degree of fidelity necessary for conducting clinical simulation....

  19. Design of fault simulator

    Energy Technology Data Exchange (ETDEWEB)

    Gabbar, Hossam A. [Faculty of Energy Systems and Nuclear Science, University of Ontario Institute of Technology (UOIT), Ontario, L1H 7K4 (Canada)], E-mail: hossam.gabbar@uoit.ca; Sayed, Hanaa E.; Osunleke, Ajiboye S. [Okayama University, Graduate School of Natural Science and Technology, Division of Industrial Innovation Sciences Department of Intelligent Systems Engineering, Okayama 700-8530 (Japan); Masanobu, Hara [AspenTech Japan Co., Ltd., Kojimachi Crystal City 10F, Kojimachi, Chiyoda-ku, Tokyo 102-0083 (Japan)

    2009-08-15

    Fault simulator is proposed to understand and evaluate all possible fault propagation scenarios, which is an essential part of safety design and operation design and support of chemical/production processes. Process models are constructed and integrated with fault models, which are formulated in qualitative manner using fault semantic networks (FSN). Trend analysis techniques are used to map real time and simulation quantitative data into qualitative fault models for better decision support and tuning of FSN. The design of the proposed fault simulator is described and applied on experimental plant (G-Plant) to diagnose several fault scenarios. The proposed fault simulator will enable industrial plants to specify and validate safety requirements as part of safety system design as well as to support recovery and shutdown operation and disaster management.

  20. Simulating detectors dead time

    International Nuclear Information System (INIS)

    Rustom, Ibrahim Farog Ibrahim

    2015-06-01

    Nuclear detectors are used in all aspects of nuclear measurements. All nuclear detectors are characterized by their dead time i.e. the time needed by a detector to recover from a previous incident. A detector dead time influences measurements taken by a detector and specially when measuring high decay rate (>) where is the detector dead time. Two models are usually used to correct for the dead time effect: the paralayzable and the non-paralayzable models. In the current work we use Monte Carlo simulation techniques to simulate radioactivity and the effect of dead time and the count rate of a detector with a dead time =5x10 - 5s assuming the non-paralayzable model. The simulation indicates that assuming a non -paralayzable model could be used to correct for decay rate measured by a detector. The reliability of the non-paralayzable model to correct the measured decay rate could be gauged using the Monte Carlo simulation. (Author)

  1. CATCC/AATCC Simulator

    Data.gov (United States)

    Federal Laboratory Consortium — The 15G30 CATCC/AATCC simulator provides high fidelity training for Navy Air Traffic Control (ATC) trainees in a realistic shipboard air traffic control environment....

  2. Intelligently interactive combat simulation

    Science.gov (United States)

    Fogel, Lawrence J.; Porto, Vincent W.; Alexander, Steven M.

    2001-09-01

    To be fully effective, combat simulation must include an intelligently interactive enemy... one that can be calibrated. But human operated combat simulations are uncalibratable, for we learn during the engagement, there's no average enemy, and we cannot replicate their culture/personality. Rule-based combat simulations (expert systems) are not interactive. They do not take advantage of unexpected mistakes, learn, innovate, and reflect the changing mission/situation. And it is presumed that the enemy does not have a copy of the rules, that the available experts are good enough, that they know why they did what they did, that their combat experience provides a sufficient sample and that we know how to combine the rules offered by differing experts. Indeed, expert systems become increasingly complex, costly to develop, and brittle. They have face validity but may be misleading. In contrast, intelligently interactive combat simulation is purpose- driven. Each player is given a well-defined mission, reference to the available weapons/platforms, their dynamics, and the sensed environment. Optimal tactics are discovered online and in real-time by simulating phenotypic evolution in fast time. The initial behaviors are generated randomly or include hints. The process then learns without instruction. The Valuated State Space Approach provides a convenient way to represent any purpose/mission. Evolutionary programming searches the domain of possible tactics in a highly efficient manner. Coupled together, these provide a basis for cruise missile mission planning, and for driving tank warfare simulation. This approach is now being explored to benefit Air Force simulations by a shell that can enhance the original simulation.

  3. Accelerator simulation using computers

    International Nuclear Information System (INIS)

    Lee, M.; Zambre, Y.; Corbett, W.

    1992-01-01

    Every accelerator or storage ring system consists of a charged particle beam propagating through a beam line. Although a number of computer programs exits that simulate the propagation of a beam in a given beam line, only a few provide the capabilities for designing, commissioning and operating the beam line. This paper shows how a ''multi-track'' simulation and analysis code can be used for these applications

  4. Tokamak simulation code manual

    International Nuclear Information System (INIS)

    Chung, Moon Kyoo; Oh, Byung Hoon; Hong, Bong Keun; Lee, Kwang Won

    1995-01-01

    The method to use TSC (Tokamak Simulation Code) developed by Princeton plasma physics laboratory is illustrated. In KT-2 tokamak, time dependent simulation of axisymmetric toroidal plasma and vertical stability have to be taken into account in design phase using TSC. In this report physical modelling of TSC are described and examples of application in JAERI and SERI are illustrated, which will be useful when TSC is installed KAERI computer system. (Author) 15 refs., 6 figs., 3 tabs

  5. Transient FDTD simulation validation

    OpenAIRE

    Jauregui Tellería, Ricardo; Riu Costa, Pere Joan; Silva Martínez, Fernando

    2010-01-01

    In computational electromagnetic simulations, most validation methods have been developed until now to be used in the frequency domain. However, the EMC analysis of the systems in the frequency domain many times is not enough to evaluate the immunity of current communication devices. Based on several studies, in this paper we propose an alternative method of validation of the transients in time domain allowing a rapid and objective quantification of the simulations results.

  6. Xyce parallel electronic simulator.

    Energy Technology Data Exchange (ETDEWEB)

    Keiter, Eric R; Mei, Ting; Russo, Thomas V.; Rankin, Eric Lamont; Schiek, Richard Louis; Thornquist, Heidi K.; Fixel, Deborah A.; Coffey, Todd S; Pawlowski, Roger P; Santarelli, Keith R.

    2010-05-01

    This document is a reference guide to the Xyce Parallel Electronic Simulator, and is a companion document to the Xyce Users Guide. The focus of this document is (to the extent possible) exhaustively list device parameters, solver options, parser options, and other usage details of Xyce. This document is not intended to be a tutorial. Users who are new to circuit simulation are better served by the Xyce Users Guide.

  7. Simulating the Smart Grid

    OpenAIRE

    Pöchacker, Manfred; Sobe, Anita; Elmenreich, Wilfried

    2013-01-01

    Major challenges for the transition of power systems do not only tackle power electronics but also communication technology, power market economy and user acceptance studies. Simulation is an important research method therein, as it helps to avoid costly failures. A common smart grid simulation platform is still missing. We introduce a conceptual model of agents in multiple flow networks. Flow networks extend the depth of established power flow analysis through use of networks of information ...

  8. Water hammer simulator

    International Nuclear Information System (INIS)

    Sinha, S.K.; Madia, J.; Dixon, S.

    1995-01-01

    The Consolidated Edison Company of New York, Inc. (Con Edison) has constructed a first-of-a-kind water hammer events simulator for use at its training center. The Learning Center, Con Edison's central training facility, intends to use the simulator as an educational tool to demonstrate the various mechanisms of the water hammer phenomenon to power plant designers, engineers and operators. The water hammer phenomenon has been studied extensively for the past 15 years for the nuclear industry. However, the acknowledge of the various water hammer mechanisms and the measures to prevent or mitigate water hammer have not been widely disseminated among the operators of fossil-fueled power plants. Con Edison personnel who operate the various generation stations and the New York City steam distribution systems are expected to benefit from the new simulator. Knowledge gained from interacting with the simulator will be very important in helping the Con Edison prevent, mitigate, or accommodate water hammer at its facilities. The water hammer simulator was fabricated in Con Edison's central machine shop. Details of the design and construction of the simulator were finalized in consultation with Creare, Inc., an engineering research firm, located in Hanover, New Hampshire. The simulator seeks to recreate the essential features of water hammer in steam mines following the buildup of cold (subcooled) water by condensation and steam-water interaction. This paper describes the fabrication, design, testing, and operation of the Con Edison water hammer simulator. A discussion of how Con Edison plans to use the facility at The Learning Center is included

  9. Simulation - modeling - experiment; Simulation - modelisation - experience

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    After two workshops held in 2001 on the same topics, and in order to make a status of the advances in the domain of simulation and measurements, the main goals proposed for this workshop are: the presentation of the state-of-the-art of tools, methods and experiments in the domains of interest of the Gedepeon research group, the exchange of information about the possibilities of use of computer codes and facilities, about the understanding of physical and chemical phenomena, and about development and experiment needs. This document gathers 18 presentations (slides) among the 19 given at this workshop and dealing with: the deterministic and stochastic codes in reactor physics (Rimpault G.); MURE: an evolution code coupled with MCNP (Meplan O.); neutronic calculation of future reactors at EdF (Lecarpentier D.); advance status of the MCNP/TRIO-U neutronic/thermal-hydraulics coupling (Nuttin A.); the FLICA4/TRIPOLI4 thermal-hydraulics/neutronics coupling (Aniel S.); methods of disturbances and sensitivity analysis of nuclear data in reactor physics, application to VENUS-2 experimental reactor (Bidaud A.); modeling for the reliability improvement of an ADS accelerator (Biarotte J.L.); residual gas compensation of the space charge of intense beams (Ben Ismail A.); experimental determination and numerical modeling of phase equilibrium diagrams of interest in nuclear applications (Gachon J.C.); modeling of irradiation effects (Barbu A.); elastic limit and irradiation damage in Fe-Cr alloys: simulation and experiment (Pontikis V.); experimental measurements of spallation residues, comparison with Monte-Carlo simulation codes (Fallot M.); the spallation target-reactor coupling (Rimpault G.); tools and data (Grouiller J.P.); models in high energy transport codes: status and perspective (Leray S.); other ways of investigation for spallation (Audoin L.); neutrons and light particles production at intermediate energies (20-200 MeV) with iron, lead and uranium targets (Le Colley F

  10. Advanced computers and simulation

    International Nuclear Information System (INIS)

    Ryne, R.D.

    1993-01-01

    Accelerator physicists today have access to computers that are far more powerful than those available just 10 years ago. In the early 1980's, desktop workstations performed less one million floating point operations per second (Mflops), and the realized performance of vector supercomputers was at best a few hundred Mflops. Today vector processing is available on the desktop, providing researchers with performance approaching 100 Mflops at a price that is measured in thousands of dollars. Furthermore, advances in Massively Parallel Processors (MPP) have made performance of over 10 gigaflops a reality, and around mid-decade MPPs are expected to be capable of teraflops performance. Along with advances in MPP hardware, researchers have also made significant progress in developing algorithms and software for MPPS. These changes have had, and will continue to have, a significant impact on the work of computational accelerator physicists. Now, instead of running particle simulations with just a few thousand particles, we can perform desktop simulations with tens of thousands of simulation particles, and calculations with well over 1 million particles are being performed on MPPs. In the area of computational electromagnetics, simulations that used to be performed only on vector supercomputers now run in several hours on desktop workstations, and researchers are hoping to perform simulations with over one billion mesh points on future MPPs. In this paper we will discuss the latest advances, and what can be expected in the near future, in hardware, software and applications codes for advanced simulation of particle accelerators

  11. Neutron transportation simulator

    International Nuclear Information System (INIS)

    Uenohara, Yuzo.

    1995-01-01

    In the present invention, problems in an existent parallelized monte carlo method is solved, and behaviors of neutrons in a large scaled system are accurately simulated at a high speed. Namely, a neutron transportation simulator according to the monte carlo method simulates movement of each of neutrons by using a parallel computer. In this case, the system to be processed is divided based on a space region and an energy region to which neutrons belong. Simulation of neutrons in the divided regions is allotted to each of performing devices of the parallel computer. Tarry data and nuclear data of the neutrons in each of the regions are memorized dispersedly to memories of each of the performing devices. A transmission means for simulating the behaviors of the neutrons in the region by each of the performing devices, as well as transmitting the information of the neutrons, when the neutrons are moved to other region, to the performing device in a transported portion are disposed to each of the performing devices. With such procedures, simulation for the neutrons in the allotted region can be conducted with small capacity of memories. (I.S.)

  12. Guiding-center models for edge plasmas and numerical simulations of isolated plasma filaments

    International Nuclear Information System (INIS)

    Madsen, Jens

    2010-09-01

    The work presented in this thesis falls into two categories: development of reduced dynamical models applicable to edge turbulence in magnetically confined fusion plasmas and numerical simulations of isolated plasma filaments in the scrape-off layer region investigating the influence of finite Larmor radius effects on the radial plasma transport. The coexistence of low-frequency fluctuations, having length scales comparable to the ion gyroradius, steep pressure gradients and strong E x B flows in the edge region of fusion plasmas violates the standard gyrokinetic ordering. In this thesis two models are presented that overcome some of the difficulties associated with the development of reduced dynamical models applicable to the edge. Second order guiding-center coordinates are derived using the phasespace Lie transform method. Using a variational principle the corresponding Vlasov-Maxwell equations expressed in guiding-center coordinates are derived including a local energy theorem. The second order terms describe lowest order finite Larmor radius effects. This set of equations might be relevant for edge plasmas due to the capability of capturing strong E x B flows and lowest order finite Larmor radius effects self-consistently. Next, an extension of the existing gyrokinetic formalism with strong flows is presented. In this work the background electric fields is dynamical, whereas earlier contributions did only incorporate a stationary electric field. In an ordering relevant for edge plasma turbulence, fully electromagnetic second order gyrokinetic coordinates and the corresponding gyrokinetic Vlasov-Maxwell equations are derived, including a local energy theorem. By taking the polarization and magnetization densities in the drift kinetic limit, we present the gyrokinetic Vlasov-Maxwell equations in a more tractable form, which could be relevant for direct numerical simulations of edge plasma turbulence. Finally, an investigation of the influence of finite Larmor

  13. Guiding-center models for edge plasmas and numerical simulations of isolated plasma filaments

    Energy Technology Data Exchange (ETDEWEB)

    Madsen, Jens

    2010-09-15

    The work presented in this thesis falls into two categories: development of reduced dynamical models applicable to edge turbulence in magnetically confined fusion plasmas and numerical simulations of isolated plasma filaments in the scrape-off layer region investigating the influence of finite Larmor radius effects on the radial plasma transport. The coexistence of low-frequency fluctuations, having length scales comparable to the ion gyroradius, steep pressure gradients and strong E x B flows in the edge region of fusion plasmas violates the standard gyrokinetic ordering. In this thesis two models are presented that overcome some of the difficulties associated with the development of reduced dynamical models applicable to the edge. Second order guiding-center coordinates are derived using the phasespace Lie transform method. Using a variational principle the corresponding Vlasov-Maxwell equations expressed in guiding-center coordinates are derived including a local energy theorem. The second order terms describe lowest order finite Larmor radius effects. This set of equations might be relevant for edge plasmas due to the capability of capturing strong E x B flows and lowest order finite Larmor radius effects self-consistently. Next, an extension of the existing gyrokinetic formalism with strong flows is presented. In this work the background electric fields is dynamical, whereas earlier contributions did only incorporate a stationary electric field. In an ordering relevant for edge plasma turbulence, fully electromagnetic second order gyrokinetic coordinates and the corresponding gyrokinetic Vlasov-Maxwell equations are derived, including a local energy theorem. By taking the polarization and magnetization densities in the drift kinetic limit, we present the gyrokinetic Vlasov-Maxwell equations in a more tractable form, which could be relevant for direct numerical simulations of edge plasma turbulence. Finally, an investigation of the influence of finite Larmor

  14. Eternity Variables to Simulate Specifications

    NARCIS (Netherlands)

    Hesselink, WH; Boiten, EA; Moller, B

    2002-01-01

    Simulation of specifications is introduced as a unification and generalization of refinement mappings, history variables, forward simulations, prophecy variables, and backward simulations. Eternity variables are introduced as a more powerful alternative for prophecy variables and backward

  15. Cladistic analysis of the Neotropical genera Cerqueirellum Py-Daniel, 1983, Coscaroniellum Py-Daniel, 1983 and Shelleyellum Py-Daniel & Pessoa, 2005 (Diptera: Simuliidae Análise cladística dos gêneros neotropicais Cerqueirellum Py-Daniel, 1983, Coscaroniellum Py-Daniel, 1983 e Shelleyellum Py-Daniel & Pessoa, 2005 (Diptera: Simuliidae

    Directory of Open Access Journals (Sweden)

    Felipe Arley Costa Pessoa

    2008-01-01

    Full Text Available Females of simuliid black flies are haematophagous insects and vectors of several pathogenic agents of human diseases such as the filarial worms Mansonella ozzardi and Onchocerca volvulus. The genus Cerqueirellum is one of the most important groups of vectors of mansonellosis and onchocerciasis diseases in South America, and the genera Coscaroniellum and Shelleyellum are phylogenetically close to Cerqueirellum. There is not yet an agreement among authors about the generic classification of the species which compose these three genera, being all lumped by some taxonomists within Psaroniocompsa. A cladistic analysis of all species of Coscaroniellum, Cerqueirellum, and Shelleyellum, based on 41 morphological characters were done. Species closely related to Cerqueirellum were included in the analysis. The genera Cerqueirellum, Coscaroniellum and Shelleyellum were demonstrated as consistent basal entities and well-defined monophyletic clades.As fêmeas de piuns ou borrachudos da família Simuliidae são hematófagas e vetoras de diversos patógenos, destacando-se os vermes filarióides Mansonella ozzardi e Onchocerca volvulus. Dentre os grupos supra-específicos que são vetores de mansonelose e oncocercose na América do Sul, destaca-se o gênero Cerqueirellum. Os gêneros Coscaroniellum e Shelleyellum são filogeneticamente muito próximos a Cerqueirellum. Não existia concordância quanto à validade de Cerqueirellum e Coscaroniellum como clados supra-específicos, sendo ambos os gêneros incluídos, por uma escola taxonômica, como grupos de espécies em Psaroniocompsa. Neste trabalho é feita uma análise filogenética baseada em caracteres morfológicos dos três gêneros.. Os gêneros Cerqueirellum, Coscaroniellum e Shelleyellum. apresentaram-se como entidades basais válidas, consistentes e monofiléticas.

  16. Security Information System Digital Simulation

    OpenAIRE

    Tao Kuang; Shanhong Zhu

    2015-01-01

    The study built a simulation model for the study of food security information system relay protection. MATLAB-based simulation technology can support the analysis and design of food security information systems. As an example, the food security information system fault simulation, zero-sequence current protection simulation and transformer differential protection simulation are presented in this study. The case studies show that the simulation of food security information system relay protect...

  17. Supply Chain Simulation: A Survey

    OpenAIRE

    Kleijnen, J.P.C.

    2003-01-01

    This paper provides a survey of simulation in supply chain management.It reviews four types of simulation, namely spreadsheet simulation, system dynamics, discreteevent simulation, and business games.Which simulation type should be applied, depends on the type of managerial question to be answered by the model.Moreover, this paper summarizes novel sensitivity and robustness analyses.This sensitivity analysis yields a shortlist of the truly important factors in large simulation models with (sa...

  18. Interactive Dynamic-System Simulation

    CERN Document Server

    Korn, Granino A

    2010-01-01

    Showing you how to use personal computers for modeling and simulation, Interactive Dynamic-System Simulation, Second Edition provides a practical tutorial on interactive dynamic-system modeling and simulation. It discusses how to effectively simulate dynamical systems, such as aerospace vehicles, power plants, chemical processes, control systems, and physiological systems. Written by a pioneer in simulation, the book introduces dynamic-system models and explains how software for solving differential equations works. After demonstrating real simulation programs with simple examples, the author

  19. Range Process Simulation Tool

    Science.gov (United States)

    Phillips, Dave; Haas, William; Barth, Tim; Benjamin, Perakath; Graul, Michael; Bagatourova, Olga

    2005-01-01

    Range Process Simulation Tool (RPST) is a computer program that assists managers in rapidly predicting and quantitatively assessing the operational effects of proposed technological additions to, and/or upgrades of, complex facilities and engineering systems such as the Eastern Test Range. Originally designed for application to space transportation systems, RPST is also suitable for assessing effects of proposed changes in industrial facilities and large organizations. RPST follows a model-based approach that includes finite-capacity schedule analysis and discrete-event process simulation. A component-based, scalable, open architecture makes RPST easily and rapidly tailorable for diverse applications. Specific RPST functions include: (1) definition of analysis objectives and performance metrics; (2) selection of process templates from a processtemplate library; (3) configuration of process models for detailed simulation and schedule analysis; (4) design of operations- analysis experiments; (5) schedule and simulation-based process analysis; and (6) optimization of performance by use of genetic algorithms and simulated annealing. The main benefits afforded by RPST are provision of information that can be used to reduce costs of operation and maintenance, and the capability for affordable, accurate, and reliable prediction and exploration of the consequences of many alternative proposed decisions.

  20. Computer Modeling and Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Pronskikh, V. S. [Fermilab

    2014-05-09

    Verification and validation of computer codes and models used in simulation are two aspects of the scientific practice of high importance and have recently been discussed by philosophers of science. While verification is predominantly associated with the correctness of the way a model is represented by a computer code or algorithm, validation more often refers to model’s relation to the real world and its intended use. It has been argued that because complex simulations are generally not transparent to a practitioner, the Duhem problem can arise for verification and validation due to their entanglement; such an entanglement makes it impossible to distinguish whether a coding error or model’s general inadequacy to its target should be blamed in the case of the model failure. I argue that in order to disentangle verification and validation, a clear distinction between computer modeling (construction of mathematical computer models of elementary processes) and simulation (construction of models of composite objects and processes by means of numerical experimenting with them) needs to be made. Holding on to that distinction, I propose to relate verification (based on theoretical strategies such as inferences) to modeling and validation, which shares the common epistemology with experimentation, to simulation. To explain reasons of their intermittent entanglement I propose a weberian ideal-typical model of modeling and simulation as roles in practice. I suggest an approach to alleviate the Duhem problem for verification and validation generally applicable in practice and based on differences in epistemic strategies and scopes