458 research outputs found
Dataset for Scalable Dissolution-Dynamic Nuclear Polarization with Rapid Transfer of a Polarized Solid
No full textUnprocessed NMR data, oscilloscope traces, and time-dependent temperature data as shown in Nature Communications manuscript:
Karel Kouril, Hana Kourilova, Samuel Bartram, Malcolm H Levitt, Benno Meier
'Scalable Dissolution-Dynamic Nuclear Polarization with Rapid Transfer of a Polarized Solid', Nature Communications
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Quantum-rotor-induced polarization
No full textQuantum-rotor-induced polarization is closely related to para-hydrogen-induced polarization. In both cases the hyperpolarized spin order derives from rotational interaction, and the Pauli principle by which the symmetry of the rotational ground state dictates the symmetry of the associated nuclear spin state. In quantum-rotor-induced polarization there may be several spin states associated with the rotational ground state, and the hyperpolarization is typically generated by hetero-nuclear cross-relaxation. This review discusses preconditions for quantum-rotor-induced polarization for both the 1-dimensional methyl rotor and the asymmetric rotor H217O@C60, i.e. a single water molecule encapsulated in fullerene C60. Experimental results are presented for both rotors
Hyperpolarization and Sensitivity in Nuclear Magnetic Resonance - Python Notebooks / Circuit Impedance and Q-factor Calculation
No full textThis repository contains Jupyter Python Notebooks that implement impedance calculations as shown in
Hyperpolarization and Sensitivity in Nuclear Magnetic Resonance
by Karel Kouril and Benno Meier
Journal of Magnetic Resonance Open Special Issue on Hyperpolarization
RF_Circuit.ipynb contains the impedance / Q calculations as detailed in the manuscript
RF_Circuit_SciKit_RF contains a basic analysis of the same circuits using the scikit-rf package
The .html files with the same names are non-executable exports of these notebooks for inspection only
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Rethinking international relations: an interview with Benno Teschke
No full textIn this interview, George Souvlis and Aurélie Andry talk with Benno Teschke, author of The Myth of 1648: Class, Geopolitics and the Making of Modern International Relations, about the relationship between Marxism and international relations theory. As Teschke notes, Karl Marx never completed a book on international relations, and the lack of a coherent Marxist theory of international relations has allowed dangerous assumptions – such as instrumentalist ideas about the state, a stagist conception of history, or a universalizing capitalist world market – to take root within Marxism. Here, Teschke discusses his intellectual trajectory, the main arguments of his work, and ways of understanding capitalist internationalist relations, while also making some observations about Political Marxism, the appropriation of Carl Schmitt, and the future of the European Union
Rethinking international relations: an interview with Benno Teschke
No full textIn this interview, George Souvlis and Aurélie Andry talk with Benno Teschke, author of The Myth of 1648: Class, Geopolitics and the Making of Modern International Relations, about the relationship between Marxism and international relations theory. As Teschke notes, Karl Marx never completed a book on international relations, and the lack of a coherent Marxist theory of international relations has allowed dangerous assumptions – such as instrumentalist ideas about the state, a stagist conception of history, or a universalizing capitalist world market – to take root within Marxism. Here, Teschke discusses his intellectual trajectory, the main arguments of his work, and ways of understanding capitalist internationalist relations, while also making some observations about Political Marxism, the appropriation of Carl Schmitt, and the future of the European Union
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Benno von Wiese
No full textThe author have researched the history of science, scholarship and German studies, with particular focus on the career of the influential German literary scholar Benno von Wiese (1903-1987). The book on von Wiese deals with his supportive yet ambivalent role during National Socialism from 1933-1945 and how he dealt with this (personal and collective German) period in post-war Germany
Illustration 63: Zeitschrift für die Buchillustration: Heft 1/1974
No full textThis is one of two unusual finds in a lovely Berlin used bookshop. I did not know of the magazine Illustration 63. Antiquariat Ihring had several copies, and I looked through them. Not surprisingly, there were many fables represented in the good artworks reproduced in the issues. I found two especially nicely done and took them along. Each issue of the magazine includes a set of Beilagen, individual pieces printed on their own and included inside the back cover. This issue includes two Beilagen that offer fables. Benno Huth's smaller two-colored linocut presents Canum legati ad Iovem, the dogs sent to Iove. It is a funny illustration. Alfred Pohl presents in larger format a woodcut representing Iriarte's version of Aesop's Two Goats. As might be expected, it is a dynamic illustration. What I seem to be learning from Wikipedia and German Google is that the magazine died after seventy-nine issues.Language note: German#709La Fontain
MuChoMusic dataset
No full textMuChoMusic: Evaluating Music Understanding in Multimodal Audio-Language Models
MuChoMusic is a benchmark designed to evaluate music understanding in multimodal language models focused on audio. It includes 1,187 multiple-choice questions validated by human annotators, based on 644 music tracks from two publicly available music datasets. These questions cover a wide variety of genres and assess knowledge and reasoning across several musical concepts and their cultural and functional contexts. The benchmark provides a holistic evaluation of five open-source models, revealing challenges such as over-reliance on the language modality and highlighting the need for better multimodal integration.
Note on Audio Files
This dataset comes without audio files. The audio files can be downloaded from two datasets: SongDescriberDataset (SDD) and MusicCaps. Please see the code repository for more information on how to download the audio.
Citation
If you use this dataset, please cite our paper:
@inproceedings{weck2024muchomusic,
title={MuChoMusic: Evaluating Music Understanding in Multimodal Audio-Language Models},
author={Weck, Benno and Manco, Ilaria and Benetos, Emmanouil and Quinton, Elio and Fazekas, György and Bogdanov, Dmitry},
booktitle = {Proceedings of the 25th International Society for Music Information Retrieval Conference (ISMIR)},
year={2024}
}
Weck B, Manco I, Benetos E, Quinton E, Fazekas G, Bogdanov D. MuChoMusic: Evaluating Music Understanding in Multimodal Audio-Language Models. In: Kaneshiro B, Mysore G, Nieto O, Donahue C, Huang CZA, Lee JH, McFee B, McCallum M, editors. Proceedings of the 25th International Society for Music Information Retrieval Conference (ISMIR2024); 2024 November 10-14; San Francisco, USA
Testing signal enhancement mechanisms in the dissolution NMR of acetone
No full textIn cryogenic dissolution NMR experiments, a substance of interest is allowed to rest in a strong magnetic field at cryogenic temperature, before dissolving the substance in a warm solvent, transferring it to a high-resolution NMR spectrometer, and observing the solution-state NMR spectrum. In some cases, negative enhancements of the 13C NMR signals are observed, which have been attributed to quantum-rotor-induced polarization. We show that in the case of acetone (propan-2-one) the negative signal enhancements of the methyl 13C sites may be understood by invoking conventional cross-relaxation within the methyl groups. The 1H nuclei acquire a relative large net polarization through thermal equilibration in a magnetic field at low temperature, facilitated by the methyl rotation which acts as a relaxation sink; after dissolution, the 1H magnetization slowly returns to thermal equilibrium at high temperature, in part by cross-relaxation processes, which induce a transient negative polarization of nearby 13C nuclei. We provide evidence for this mechanism experimentally and theoretically by saturating the 1H magnetization using a radiofrequency field pulse sequence before dissolution and comparing the 13C magnetization evolution after dissolution with the results obtained from a conventional 1H-13C cross relaxation model of the CH3 moieties in acetone
Openbaring en ervaring, ’n reformatories-konfessionele benadering van 2 Petrus 1:16–21
No full textRevelation and experience, a reformed-confessional approach to 2 Peter 1:16–21. The experience of divine revelation is of crucial importance to the author of 2 Peter and in the age of the Reformation this notion was reflected in the way Guido de Brès used this epistle in the Belgic Confession. Both documents teach a divine authorship of Scripture with God as its responsible author and also that Scripture contains revelation of God that is accessible and authoritative for believers, even centuries after the lives of the prophets. In this process both documents recognise a dual interaction between holy Writ and the experience of the believer. The interaction with Scripture inspires trust in God and the work of the Spirit in the believer’s life inspires trust in holy Writ as God’s authoritative revelation
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