1,721,049 research outputs found
China: Menschenrechte und Diktatur (Prof. Dirk Pleiter, Anne Renzenbrink)
No full textDas Internationalen Forum des ZAK | Zentrum für Angewandte Kulturwissenschaft und Studium Generale am Karlsruher Institut für Technologie (KIT) behandelte das Sicherheitsgesetz in Hongkong und Chinas Umgang mit Minderheiten in Xinjiang.
Der Live-Stream fand statt am 7. Dezember 2020.
Es sprachen:
- Anne Renzenbrink, Pressereferentin mit Schwerpunkt Asien/Pazifik bei Reporter ohne Grenzen e.V.
- Prof. Dr. Dirk Pleiter, Volksrepublik China Koordinationsgruppe von Amnesty International e.V.
Moderation: Prof. Dr. Caroline Y. Robertson-von Trotha, Gründungsdirektorin des ZA
Characterization and optimization of network traffic in cortical simulation
Full text linkConsidering the great variety of obstacles the Exascale systems
have to face in the next future, a deeper attention will be given in this thesis
to the interconnect and the power consumption.
The data movement challenge involves the whole hierarchical organization
of components in HPC systems — i.e. registers, cache, memory, disks.
Running scientific applications needs to provide the most effective methods
of data transport among the levels of hierarchy. On current petaflop systems,
memory access at all the levels is the limiting factor in almost all applications.
This drives the requirement for an interconnect achieving adequate rates of
data transfer, or throughput, and reducing time delays, or latency, between
the levels.
Power consumption is identified as the largest hardware research challenge.
The annual power cost to operate the system would be above 2.5 B$
per year for an Exascale system using current technology. The research for alternative
power-efficient computing device is mandatory for the procurement
of the future HPC systems.
In this thesis, a preliminary approach will be offered to the critical process of
co-design. Co-desing is defined as the simultaneos design of both hardware
and software, to implement a desired function. This process both integrates
all components of the Exascale initiative and illuminates the trade-offs that
must be made within this complex undertaking
Colloquium Fundamentale WS 2015/2016 - Die Menschenrechtssituation in China und ihre Wahrnehmung
No full textProf. Dr. Dirk Pleiter, Sprecher der China-Ländergruppe von Amnesty International, spricht in seinem Vortrag über die Menschenrechtssituation in China. Er erläutert die Ansätze der Organisation Amnesty International, spricht über Folter und Misshandlungen in der Volksrepublik und thematisiert anschließend die Wahrnehmung der Situation in China selbst. Dabei stellt er die These „Zustände und Entwicklungen in der Volksrepublik China werden häufig nicht frei von Wertungen und Interessen wahrgenommen“ auf, die er näher ausführt. Zuletzt geht er auf die Rolle der Politik ein. Es fehle eine konsequente Menschenrechtspolitik, die eine Beendung von konkreten Missständen zum Ziel habe, merkt er an. Doch Welche Handlungsmöglichkeiten hat die Politik? Prof. Dr. Dirk Pleiter gibt Antworten.
Die Veranstaltung fand am 3. Dezember 2015 im Rahmen der vom ZAK | Zentrum für Angewandte Kulturwissenschaft und Studium Generale organisierten Veranstaltungsreihe Colloquium Fundamentale „Reich der Mitte – Quo vadis? China zwischen Megaentwicklungen und Stagnation“ statt.
Weitere Informationen: www.zak.kit.edu/colloquium_fundamental
Hyperon structure from N(f)=2+1 lattice QCD
No full textAlso published as a book chapter: T(R)OPICAL QCD 2010: Cairns, Queensland 26 September–1 October 2010 / A. Kızılersü, A.W. Thomas (eds.): pp.104-109We present results from the QCDSF/UKQCD collaboration for the electromagnetic form factors, axial charges and momentum fractions for the hyperons. The simulations are performed on our new ensembles generated with 2+1 flavours of dynamical O(a)-improved Wilson fermions. A unique feature of these configurations is that the quark masses are tuned so that the singlet quark mass is held fixed at its physical value. We use 5 such choices of the individual quark masses on 243×48 lattices with a lattice spacing of about 0.078 fm. © 2011 American Institute of Physics.Roger Horsley, Yoshifumi Nakamura, Dirk Pleiter, Paul E.L. Rakow, Gerrit Schierholz, Hinnerk Stüben, F. Winter and James M. Zanott
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Nucleon distribution amplitudes from lattice QCD
Full text linkWe calculate low moments of the leading-twist and next-to-leading-twist nucleon distribution amplitudes on the lattice using two flavors of clover fermions. The results are presented in the MS̅ scheme at a scale of 2 GeV and can be immediately applied in phenomenological studies. We find that the deviation of the leading-twist nucleon distribution amplitude from its asymptotic form is less pronounced than sometimes claimed in the literature.Meinulf Göckeler, Roger Horsley, Thomas Kaltenbrunner, Yoshifumi Nakamura, Dirk Pleiter, Paul E. L. Rakow, Andreas Schäfer, Gerrit Schierholz, Hinnerk Stüben, Nikolaus Warkentin, and James M. Zanotti (QCDSF Collaboration
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Building the international lattice data grid
No full textWe present the International Lattice Data Grid (ILDG), a loosely federated grid-of-grids for sharing data from Lattice Quantum Chromodynamics (LQCD) simulations. The ILDG comprises of metadata, file-format and web-service standards, which can be used to wrap regional data-grid interfaces, allowing seamless access to catalogues and data in a diverse set of collaborating regional grids. We discuss the technological underpinnings of the ILDG, primarily the metadata and the middleware, and offer a critique of its various aspects with the hindsight of the design work and the two years of production. © 2011 Elsevier B.V.Mark G. Beckett, Paul Coddington, Bálint Joó, Chris M. Maynard, Dirk Pleiter, Osamu Tatebe and Tomoteru Yoshiehttp://www.journals.elsevier.com/computer-physics-communications
- …
