158 research outputs found
The Scope of the IBGP Routing Anomaly Problem
Get PDFCorrectness problems in the iBGP routing, the de-facto standard to spread global routing information in Autonomous Systems, are a well-known issue. Configurations may route cost-suboptimal, inconsistent, or even behave non-convergent and -deterministic. However, even if a lot of studies have shown many exemplary problematic configurations, the exact scope of the problem is largely unknown: Up to now, it is not clear which problems may appear under which iBGP architectures. The exact scope of the iBGP correctness problem is of high theoretical and practical interest. Knowledge on the resistance of specific architecture schemes against certain anomaly classes and the reasons may help to improve other iBGP schemes. Knowledge on the specific problems of the different schemes helps to identify the right scheme for an AS and develop workarounds
Potential curve of ground state cu2 up to 98% of the dissociation energy
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Previous issue date: 26We report on an experimental and theoretical investigation of the ground electronic potential of dicopper. By taking into account our recent deperturbation study of the high lying energy map,\footnote{Beck, M., P. Bornhauser, Bradley Visser, G. Knopp, J. A. van Bokhoven, and P. P. Radi. Nature Communications, 10(2019)3270} gateway levels are identified that allow access to vibrational levels of the ground state up to 98\% of the dissociation limit. Rotationally resolved two-color resonant four-wave mixing spectra (TC-RFWM) are analyzed by applying the 'near-dissociation expansion' (NDE) introduced by Le Roy.\footnote{Le Roy, Robert J. Journal of Quantitative Spectroscopy and Radiative Transfer, 186(2017)197}
In addition to the determination of , an accurate potential energy function is obtained to assess the structural and dynamical properties of this important transition metal species. \textit{Ab initio} computations at the multi-reference configuration-interaction level of theory shed further light on the bound characteristics of this diatomic molecule
Traducción y traducción de sí en Georges-Arthur Goldschmidt
No full textThe work of Georges Arthur Goldschmidt, despite its widespread recognition, especially in Germany and France, remains unknown in Spanish-speaking countries. This seems a potentially productive omission, since his texts not only offer a lucid reflection on the relationship between languages and thinking, but they also problematize how translation affects thinking. 2020The presence of translation is discussed as practice and theory in some texts of the author, considering specially the question concerning trauma.La obra de Georges Arthur Goldschmidt, a pesar de su amplio reconocimiento, sobre todo en Alemania y Francia, sigue siendo desconocida en los países de habla hispana. Ello parece una omisión potencialmente productiva, ya que sus textos no solamente ofrecen una lúcida reflexión acerca de la relación entre las lenguas y el pensar, sino que además problematizan cómo la traducción afecta al pensar. Se discute la presencia de la traducción en tanto práctica y teoría en algunos textos del autor, considerando especialmente la pregunta por el trauma
Re-visiting the electronic energy map of the copper dimer by double-resonant four-wave mixing
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Previous issue date: 6The copper dimer is one of the most studied transition metal (TM) diatomics due to its alkali-metal like electronic shell structure, strongly bound ground state and chemical reactivity. The high electronic promotion energy in the copper atom yields numerous low-lying electronic states compared to TM dimers with textit(d)-hole electronic configurations. Thus, through extensive study the excited electronic structure of chem{Cu_2} is relatively well known, however in practice few excited states have been investigated with rotational resolution or even assigned term symbols or dissociation limits._x000d_
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The spectroscopic methods that have been used to investigate the copper dimer until now have not possessed sufficient textit{spectral} selectivity, which has complicated the analysis of the often overlapping transitions. Resonant four-wave mixing is a non-linear absorption based spectroscopic method. In favorable cases, the two-color version (TC-RFWM) enables purely optical mass selective spectral measurements in a mixed molecular beam. Additionally, by labelling individual rotational levels in the common intermediate state the spectra are dramatically simplified._x000d_
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In this work, we report on the rotationally resolved characterization of low-lying electronic states of dicopper. Several term symbols have been assigned unambiguously. De-perturbation studies performed shed light on the complex electronic structure of the molecule. Furthermore, a new low-lying electronic state of chem{Cu_2} is discovered and has important implications for the high-level theoretical structure calculations performed in parallel. In fact, the textit{ab initio} methods applied yield relative energies among the electronic levels that are almost quantitative and allow assignment of the newly observed state that is governed by spin-orbit interacting levels
Impact of ruxolitinib pretreatment on outcomes after allogeneic stem cell transplantation in patients with myelofibrosis
No full textRadioimmunotherapy with Yttrium-90-Ibritumomab Tiuxetan as Part of a Reduced Intensity Conditioning Regimen for Allogeneic Hematopoietic Cell Transplantation in Patients with Advanced Indolent Non-Hodgkin Lymphoma: Interim Analysis of a Phase II Study.
No full textScalability of iBGP Path Diversity Concepts
No full textPart 9: Path DiversityInternational audienceImproving the path diversity seems to be the next fundamental step in the iBGP evolution. Focusing the advantages an improvement of the path diversity implies, network protocol designers have disregarded the most critical drawback so far: The effect on the scalability of the iBGP routing, a fundamental requirement for production usage. This aspect is examined by the analyses discussed in our paper.In this paper, we provide the theoretical groundwork for scalability analyses of four highly relevant path diversity schemes. Based on this groundwork, we exemplarily predict the information load the schemes induce in a system of a large ISP. Generalizing the system-specific results, we give an outlook on the load that can be expected in comparable ASs. We found that for two schemes currently in the standardization process, scalability problems in large ASs as they are operated by ISPs seem likely
Lo torcido ante todo lo recto
Get PDFResumen: Entrevista realizada por Zoltán Kulcsár-Szabó y Tamás Lénárt a Werner Hamacher en marzo de 2012 en Budapest, en la que este autor desgrana algunas de sus posiciones sobre la justicia lingüística. Se trata de una aportación en el ámbito de la teoría de la literatura, analizada desde un enfoque filosófico.El texto que aquí se presenta es la traducción de dicha entrevista al castellano y ha sido realizada por Niklas Bornhauser.Absatract: Interview conducted by Zoltán Kulcsár-Szabó and Tamás Lénárt to Werner Hamacher in March 2012 in Budapest, in which this author describes some of his positions on linguistic justice. It is a contribution in the field of literature theory, analyzed from a philosophical approach. The text presented here is the translation of said interview into Spanish and has been done by Niklas Bornhauser
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