cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Renormalization Group Running of Fermion Observables in an Extended Non-Supersymmetric SO(10) Model
Creators: name: Meloni, Davide
name: Ohlsson, Tommy
name: Riad, Stella
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the renormalization group evolution of fermion masses, mixings and quartic scalar Higgs self-couplings in an ${\it extended}$ non-supersymmetric SO(10) model, where the Higgs sector contains the ${\bf 10}_{\rm H}$, ${\bf 120}_{\rm H}$, and ${\bf 126}_{\rm H}$ representations. The group SO(10) is spontaneously broken at the GUT scale to the Pati-Salam group and subsequently to the Standard Model (SM) at an intermediate scale $M_{\rm I}$. We explicitly take into account the effects of the change of gauge groups in the evolution. In particular, we derive the renormalization group equations for the different Yukawa couplings. We find that the computed physical fermion observables can be successfully matched to the experimental measured values at the electroweak scale. Using the same Yukawa couplings at the GUT scale, the measured values of the fermion observables cannot be reproduced with a SM-like evolution, leading to differences in the numerical values up to around 80 %. Furthermore, a similar evolution can be performed for a ${\it minimal}$ SO(10) model, where the Higgs sector consists of the ${\bf 10}_{\rm H}$ and ${\bf 126}_{\rm H}$ representations only, showing an equally good potential to describe the low-energy fermion observables. Finally, for both the extended and the minimal SO(10) models, we present predictions for the three Dirac and Majorana CP-violating phases as well as three effective neutrino mass parameters.
description: 24 pages, 3 figures, 3 tables. Final version published in JHEP
Near-optimal quantum circuit for Grover's unstructured search using a transverse field
Creators: name: Jiang, Zhang
name: Rieffel, Eleanor G.
name: Wang, Zhihui
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Inspired by a class of algorithms proposed by Farhi et al. (arXiv:1411.4028), namely the quantum approximate optimization algorithm (QAOA), we present a circuit-based quantum algorithm to search for a needle in a haystack, obtaining the same quadratic speedup achieved by Grover's original algorithm. In our algorithm, the problem Hamiltonian (oracle) and a transverse field are applied alternately to the system in a periodic manner. We introduce a technique, based on spin-coherent states, to analyze the composite unitary in a single period. This composite unitary drives a closed transition between two states that have high degrees of overlap with the initial state and the target state, respectively. The transition rate in our algorithm is of order $Θ(1/\sqrt N)$, and the overlaps are of order $Θ(1)$, yielding a nearly optimal query complexity of $T\simeq \sqrt N (π/2\sqrt 2\,)$. Our algorithm is a QAOA circuit that demonstrates a quantum advantage with a large number of iterations that is not derived from Trotterization of an adiabatic quantum optimization (AQO) algorithm. It also suggests that the analysis required to understand QAOA circuits involves a very different process from estimating the energy gap of a Hamiltonian in AQO.
description: 9 pages, 4 figures
A Teoria Queer no combate à transfobia escolar: contribuições da Educação Profissional na perspectiva de uma Formação Humana Integral
Creators: name: Santos Amorim, Rafaela
name: Araújo Dos Santos, Fábio Alexandre
Publisher: name: Confluenze.  Rivista di Studi Iberoamericani
Year: 2022

description: Este trabalho trata de um Estado do Conhecimento, realizado na Revista Brasileira de Estudos da Homocultura (REBEH), com o objetivo de investigar como a transfobia é discutida na educação e de que maneira a Educação Profissional, com vistas à Formação Humana Integral, pode contribuir no combate à transfobia escolar. Concluímos que a temática é pouco discutida e, ainda assim, de maneira muito superficial. Nessa perspectiva, articular a Educação Profissional a partir de uma concepção de Formação Humana Integral e à luz da Teoria Queer se mostra como um caminho que tem muito a contribuir para o combate à transfobia escolar.
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 2 (2022): Escapes of/from the queer in Ibero-America: aesthetics, narratives, political imagination of sex-gender dissidence
Deterministic Massively Parallel Symmetry Breaking for Sparse Graphs
Creators: name: Fischer, Manuela
name: Giliberti, Jeff
name: Grunau, Christoph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: We consider the problem of designing deterministic graph algorithms for the model of Massively Parallel Computation (MPC) that improve with the sparsity of the input graph, as measured by the notion of arboricity. For the problems of maximal independent set (MIS), maximal matching (MM), and vertex coloring, we improve the state of the art as follows. Let $λ$ denote the arboricity of the $n$-node input graph with maximum degree $Δ$. MIS and MM: We develop a deterministic low-space MPC algorithm that reduces the maximum degree to $poly(λ)$ in $O(\log \log n)$ rounds, improving and simplifying the randomized $O(\log \log n)$-round $poly(\max(λ, \log n))$-degree reduction of Ghaffari, Grunau, Jin [DISC'20]. Our approach when combined with the state-of-the-art $O(\log Δ+ \log \log n)$-round algorithm by Czumaj, Davies, Parter [SPAA'20, TALG'21] leads to an improved deterministic round complexity of $O(\log λ+ \log \log n)$ for MIS and MM in low-space MPC. We also extend above MIS and MM algorithms to work with linear global memory. Specifically, we show that both problems can be solved in deterministic time $O(\min(\log n, \log λ\cdot \log \log n))$, and even in $O(\log \log n)$ time for graphs with arboricity at most $\log^{O(1)} \log n$. In this setting, only a $O(\log^2 \log n)$-running time bound for trees was known due to Latypov and Uitto [ArXiv'21]. Vertex Coloring: We present a $O(1)$-round deterministic algorithm for the problem of $O(λ)$-coloring in linear-memory MPC with relaxed global memory of $n \cdot poly(λ)$ that solves the problem after just one single graph partitioning step. This matches the state-of-the-art randomized round complexity by Ghaffari and Sayyadi [ICALP'19] and improves upon the deterministic $O(λ^ε)$-round algorithm by Barenboim and Khazanov [CSR'18].
description: Full paper version (Appeared at SPAA'23)
title: Stellungnahme zur Bundesanstalt für Gewässerkunde (BfG), Koblenz
Creators: name: German Science And Humanities Council
Publisher: name: German Science and Humanities Council
Year: 2024
Subjects: Evaluation
Forschungseinrichtungen
Ressortforschung
Gewässerkunde
Hydrologie
Gewässerschutz
Umwelt

description: Die Bundesanstalt für Gewässerkunde (BfG) forscht und berät in den Fachgebieten Hydrologie, Gewässernutzung und -beschaffenheit sowie Ökologie und Gewässerschutz. Der Wissenschaftsrat würdigt die hohe Qualität ihrer Forschungs- und Transferleistungen und hebt insbesondere den Einsatz der Einrichtung für die ressortübergreifende Nutzung ihrer Expertise positiv hervor. So könne eine interministerielle Strategiebildung zu drängenden Herausforderungen im Themenfeld Wasser unterstützt werden. Auch das Engagement der BfG in der Vernetzung mit und zwischen den Bundesländern zur Schaffung einer einheitlichen Datenbasis und zur Erhöhung der gemeinsamen Handlungsfähigkeit im Krisenfall wird unterstützt.
Der Wissenschaftsrat empfiehlt der Einrichtung, ihre Sichtbarkeit und Vernetzung in der internationalen wissenschaftlichen Fachgemeinschaft weiter voranzutreiben und ihre Funktion als hydrologisches Datenzentrum auszubauen.
La disidencia sexo-genérica del cuerpo abstracto. Análisis de un poema de sor Juana Inés de la Cruz
Creators: name: Stabile, Valeria
Publisher: name: Confluenze. Rivista di Studi Iberoamericani
Year: 2022

description: Leída de forma disidente, sin apegarse a ningún marco teórico que ofrezca un modelo naturalista, social, o biológico del sexo y del género, o basado en el asunto ontológico de la sacralidad del principio de no contradicción, la obra de sor Juana se revela fascinante, profunda, desobediente, desbordante. Esta es la razón por la que considero el poema “Señor: para responderos” iluminador para investigar la cuestión del sexo, un sexo que se encuentra libre de su propio género y no se encuentra influenciado o reducido a una definición procedente de la biología, de la genealogía, de la sociología o de la psicología.
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 2 (2022): Escapes of/from the queer in Ibero-America: aesthetics, narratives, political imagination of sex-gender dissidence
Revealing photons' past via quantum twisted double-slit experiment
Creators: name: Zhou, Zhi-Yuan
name: Zhu, Zhi-Han
name: Liu, Shi-Long
name: Li, Yin-Hai
name: Shi, Shuai
name: Ding, Dong-Sheng
name: Chen, Li-Xiang
name: Gao, Wei
name: Guo, Guang-Can
name: Shi, Bao-Sen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Are quantum states real? This most fundamental question in quantum mechanics has not yet been satisfactorily resolved, although its realistic interpretation seems to have been rejected by various delayed-choice experiments. Here, to address this long-standing issue, we present a quantum twisted double-slit experiment. By exploiting the subluminal feature of twisted photons, the real nature of a photon during its time in flight is revealed for the first time. We found that photons' arrival times were inconsistent with the states obtained in measurements but agreed with the states during propagation. Our results demonstrate that wavefunctions describe the realistic existence and evolution of quantum entities rather than a pure mathematical abstraction providing a probability list of measurement outcomes. This finding clarifies the long-held misunderstanding of the role of wavefunctions and their collapse in the evolution of quantum entities.
description: Comments are welcome.12 pages, 5 figures
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 8/2023
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2023
Subjects: subject: 080

description: Ordnung zur Änderung der Prüfungsordnung für den Bachelorstudiengang Datenanalyse und Datenmanagement der Fakultät Statistik an der Technischen Universität Dortmund (in der Fassung vom 12. Februar 2014) vom 28. Februar 2023
description: Neubekanntmachung der Prüfungsordnung für den Bachelorstudiengang Datenanalyse und Datenmanagement der Fakultät Statistik an der Technischen Universität Dortmund (in der Fassung vom 12. Februar 2014) vom 28. Februar 2023
description: Ordnung zur Änderung der Prüfungsordnung für den Bachelorstudiengang Datenanalyse und Datenmanagement der Fakultät Statistik an der Technischen Universität Dortmund (in der Fassung vom 10. Oktober 2016) vom 28. Februar 2023
description: Neubekanntmachung der Prüfungsordnung für den Bachelorstudiengang Datenanalyse und Datenmanagement der Fakultät Statistik an der Technischen Universität Dortmund (in der Fassung vom 10. Oktober 2016) vom 28. Februar 2023
description: Ordnung zur Änderung der Prüfungsordnung für den Masterstudiengang Datenwissenschaft der Fakultät Statistik an der Technischen Universität Dortmund vom 28. Februar 2023
description: Neubekanntmachung der Prüfungsordnung für den Masterstudiengang Datenwissenschaft der Fakultät Statistik an der Technischen Universität Dortmund vom 28. Februar 2023
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2023;8
Magic-wavelength Faraday probe measures spin continuously and without light shifts
Creators: name: Jasperse, M.
name: Kewming, M. J.
name: Fischer, S. N.
name: Pakkiam, P.
name: Anderson, R. P.
name: Turner, L. D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We describe a dispersive Faraday optical probe of atomic spin which performs a weak measurement of spin projection of a quantum gas continuously for more than one second. To date focusing bright far-off-resonance probes onto quantum gases has proved invasive, due to strong scalar and vector light shifts exerting dipole and Stern-Gerlach forces. We show that tuning the probe near the magic-zero wavelength at 790 nm between the fine-structure doublet of $^{87}$Rb cancels the scalar light shift, and careful control of polarization eliminates the vector light shift. Faraday rotations due to each fine-structure line reinforce at this wavelength, enhancing the signal-to-noise ratio for a fixed rate of probe-induced decoherence. Using this minimally-invasive spin probe we perform microscale atomic magnetometry at high temporal resolution. Spectrogram analysis of the Larmor precession signal of a single spinor Bose-Einstein condensate measures a time-varying magnetic field strength with 1 μG accuracy every 5 ms; or equivalently makes > 200 successive measurements each at $10\,\mathrm{pT/\sqrt{Hz}}$ sensitivity.
title: Stellungnahme zum Bundesamt für Strahlenschutz (BfS), Salzgitter
Creators: name: German Science And Humanities Council
Publisher: name: German Science and Humanities Council
Year: 2024
Subjects: Evaluation
Forschungseinrichtungen
Ressortforschung
Strahlenschutz
Umweltradioaktivität
Strahlung
Radioaktivität

description: Das Bundesamt für Strahlenschutz (BfS) ist als zentrale Bundesbehörde für den Schutz von Mensch und Umwelt vor ionisierender und nichtionisierender Strahlung in Deutschland zuständig. Der Wissenschaftsrat bescheinigt dem BfS, dafür sehr gute Forschungs- und Transferleistungen zu erbringen. Durch seine anwendungsorientierte Forschung, den Vollzug gesetzlicher Aufgaben sowie seine Politikberatung und Außenkommunikation erfüllt es unverzichtbare Aufgaben für den Schutz vor Strahlung. Das BfS leistet sehr gute Aufklärung und Beratung, die auf einem breiten Spektrum an Forschungsthemen und einer hohen wissenschaftlichen Kompetenz des Amtes basieren.
Approaching Landauer's Bound In A Spin-Encoded Quantum Computer
Creators: name: Wang, Frank Zhigang
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences
subject: B.0

description: It is commonly recognized that the Landauer bound holds in (irreversible) quantum operations. In this study, we verified this bound by extracting a single spin from a spin-spin magnetic interaction experiment to demonstrate that the Landauer bound can be approached quantitatively with an approaching rate of 79.3 percent via quantum spin tunneling. An optically manipulated spin-encoded quantum computer is designed, in which energy bound near kB T to erase a spin qubit is theoretically sensible and experimentally verified. This work may represent the last piece of the puzzle in quantum Landauer erasure in terms of a single spin being the smallest information carrier.
description: 8 pages, 6 figures
Tra vittime e perpetratori: l’omosessualità come silenzio e implicazione nella guerra coloniale in Mozambico
Creators: name: Biasio, Nicola
Publisher: name: Confluenze. Rivista di Studi Iberoamericani
Year: 2022

description: La memoria della élite bianca omosessuale durante il tardo colonialismo in Mozambico è un archivio complesso e contraddittorio che colloca questo gruppo sociale tra l’essere vittima della repressione sessuale dell’Estado Novo salazarista e la collaborazione con il sistema colonialista che opprime la popolazione locale. Tra silenzio storico e implicazione con il regime, questo articolo ricostruisce le dinamiche della comunità omosessuale durante la guerra coloniale in Mozambico e le analizza, grazie a testimonianze letterarie, attraverso il concetto di “soggetto implicato” (Rothberg 2019).
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 2 (2022): Escapes of/from the queer in Ibero-America: aesthetics, narratives, political imagination of sex-gender dissidence
1ºWorkshop BIM-SIG Infraestruturas Lineares e Geotécnicas - e-book apresentações
Creators: name: Pinto, Alexandre
name: Correia, António G.
name: Pistone, Raúl S.
name: Figueiredo, José N.
name: Vieira, Gonçalo D.
name: Henriques, André S.
name: Martins, Pedro L.
Publisher: name: Zenodo
Year: 2023
Subjects: BIM
SIG
Geotechnical Engineering

description: A Comissão Portuguesa de Geotecnia nos Transportes (CPGT), através do seu Grupo de Trabalho 3 (Digitalização na Geotecnia nos Transportes), em conjunto com a Comissão Portuguesa de Túneis e do Espaço Subterrâneo (CPT), através do seu Grupo de Trabalho 4 (BIM e Gestão da Informação em Obras Subterrâneas) da Sociedade Portuguesa de Geotecnia (SPG), organizam o presente e-book que surge na sequência do 1º Workshop BIM/SIG – Infraestruturas Lineares e Geotécnicas, o qual decorreu no Fórum Lisboa (Lisboa), em 03 de março de 2023, contando com o apoio do Metropolitano de Lisboa (METRO), Câmara Municipal de Lisboa (CML) e Ordem dos Engenheiros (OE).
 O e-book encontra-se dividido nas várias sessões que ocorreram no evento. O e-book reproduz as palestras proferidas por conferencistas de reconhecido mérito, da academia e de empresas que operam no sector, com apresentação de soluções inspiradoras no processo de transição digital nesta temática.
Réussir le sevrage des porcelets bio
Creators: name: Früh, Barbara
name: Hagmüller, Werner
name: Walkenhorst, Michael
name: Wesselmann, Stefan
Publisher: name: Zenodo
Year: 2023
Subjects: porcelets
santé
homéopathie
phytothérapie
diarrhée au sevrage

description: Cette fiche technique aborde les difficultés liées au sevrage des porcelets et présente des mesures visant à prévenir les problèmes voire à y remédier en cas d’urgence. Outre des recommandations sur l’optimisation de la détention, de la gestion et de l’alimentation, vous y trouverez des aliments complémentaires visant à stabiliser la digestion des porcelets autorisés en agriculture biologique. Des informations sur des plantes médicinales et des remèdes homéopathiques destinés à la prophylaxie et au soulagement des symptômes des maladies diarrhéiques complètent la publication.
Specular electron focusing between gate-defined quantum point contacts in bilayer graphene
Creators: name: Ingla-Aynés, Josep
name: Manesco, Antonio L. R.
name: Ghiasi, Talieh S.
name: Volosheniuk, Serhii
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: van der Zant, Herre S. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on multiterminal measurements in a ballistic bilayer graphene (BLG) channel where multiple spin and valley-degenerate quantum point contacts (QPCs) are defined by electrostatic gating. By patterning QPCs of different shapes and along different crystallographic directions, we study the effect of size quantization and trigonal warping on the transverse electron focusing (TEF) spectra. Our TEF spectra show eight clear peaks with comparable amplitude and weak signatures of quantum interference at the lowest temperature, indicating that reflections at the gate-defined edges are specular and transport is phase coherent. The temperature dependence of the scattering rate indicates that electron-electron interactions play a dominant role in the charge relaxation process for electron doping and temperatures below 100 K. The achievement of specular reflection, which is expected to preserve the pseudospin information of the electron jets, is promising for the realization of ballistic interconnects for new valleytronic devices.
description: 22 pages, 16 figures
La interpelación desajustada como “acontecimiento habitual”. Imaginación política, constitución subjetiva y disidencia sexogenérica en la transición de Paul Preciado
Creators: name: Dorfman, Daniela
Publisher: name: Confluenze. Rivista di Studi Iberoamericani
Year: 2022

description: En Un apartamento en Urano. Crónicas del cruce Paul Preciado presenta una escena que describe como un “acontecimiento habitual” en la vida de las personas trans al mostrar sus documentos de identidad. A partir de eso, y basándose en los cuestionamientos de Judith Butler a la teoría de la interpelación de Louis Althusser, este artículo reflexiona sobre los modos de constitución subjetiva, la sujeción que ésta supone, y la alternativa que plantea Preciado en su propio proceso de transición.
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 2 (2022): Escapes of/from the queer in Ibero-America: aesthetics, narratives, political imagination of sex-gender dissidence
Positive Influence of Peer Group on Character Modification Supportive Roles of Parents, Teachers and Religious Bodies.pdf
Creators: name: Orji, Evelyn   Ijeoma
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: In human development, there is a gradual and sequential progression from childhood to adolescent and to adulthood. It is a common believe that what individuals experience at childhood or adolescence in many ways could affect their later development. Therefore, in carrying out the task of preparing the individual from childhood through adolescence to adulthood, many socialization agencies are involved, at one stage or the other. For example, at childhood, the parents and other significant caregivers thrive to guide the holistic development of the growing individual. Specifically, parents in their parenting role do everything possible to help the child grow up as expected. They feed, provide shelter and calculate desirable values. Children should ordinarily adapt the values and morality shared by their immediate families. This help them to adapt to the larger society. Unfortunately, the future is not always accurately predicted no matter the effort invested by families on the development of children and adolescents. Some of them turn
Superfluid fraction in an interacting spatially modulated Bose-Einstein condensate
Creators: name: Chauveau, G.
name: Maury, C.
name: Rabec, F.
name: Heintze, C.
name: Brochier, G.
name: Nascimbene, S.
name: Dalibard, J.
name: Beugnon, J.
name: Roccuzzo, S. M.
name: Stringari, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: At zero temperature, a Galilean-invariant Bose fluid is expected to be fully superfluid. Here we investigate theoretically and experimentally the quenching of the superfluid density of a dilute Bose-Einstein condensate due to the breaking of translational (and thus Galilean) invariance by an external 1D periodic potential. Both Leggett's bound fixed by the knowledge of the total density and the anisotropy of the sound velocity provide a consistent determination of the superfluid fraction. The use of a large-period lattice emphasizes the important role of two-body interactions on superfluidity.
description: typos in the SM corrected
Comments on Entanglement Propagation
Creators: name: Rozali, Moshe
name: Vincart-Emard, Alexandre
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend our work on entanglement propagation following a local quench in 2+1 dimensional holographic conformal field theories. We find that entanglement propagates along an emergent lightcone, whose speed of propagation $v_E$ seems distinct from other measures of quantum information spreading. We compare the relations we find to information and hydrodynamic velocities in strongly coupled 2+1 dimensional theories. While early-time entanglement velocities corresponding to small entangling regions are numerically close to the butterfly velocity, late-time entanglement velocities for large regions show less regularity. We also generalize and extend our previous results regarding the late-time decay of the entanglement entropy back to its equilibrium value.
description: 20 pages, 5 figures, v2: references added, extended argument in Sec. 3.1, v3: references added, published version
Sexual/Textual Migrations: Queer of Color Theory in Chile
Creators: name: Fischer, Carl
Publisher: name: Confluenze. Rivista di Studi Iberoamericani
Year: 2022

description: This article argues that the resistance to certain foreign influences in Chilean queer thought is an understandable defense against neocolonial “adaptations” of queer theory into local debates, but can also leave issues of race and experiences of racialized sexuality by the wayside. It then examines the work of one Black queer migrant to Chile, the Dominican performance artist Johan Mijaíl, to show how Black queer theory can not only help expand the focus of Chilean queer theory beyond US imperialism and neoliberalism to questions of race, migration, and hemispheric colonialism, but also strengthen existing critiques of Chilean exceptionalism.
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 2 (2022): Escapes of/from the queer in Ibero-America: aesthetics, narratives, political imagination of sex-gender dissidence
title: Stellungnahme zum Georg-Speyer-Haus - Institut für Tumorbiologie und experimentelle Therapie (GSH), Frankfurt / Main
Creators: name: German Science And Humanities Council
Publisher: name: German Science and Humanities Council
Year: 2024
Subjects: Evaluation
Medizin
Forschungseinrichtungen
Tumorbiologie
Histologie
Krebs
Stammzellen

description: Die unmittelbare Umgebung von Tumoren, das Tumormikromilieu, spielt eine wichtige Rolle bei Krebserkrankungen und ihrer Therapie. Der Wissenschaftsrat bescheinigt dem Georg-Speyer-Haus (GSH) in Frankfurt am Main, in diesem wichtigen Forschungsfeld sehr gute bis hervorragende Forschung zu erbringen. Das außeruniversitäre Institut verbindet in zum Teil beispielhafter Weise Grundlagen- und translationale Forschung und trägt damit wesentlich zum wissenschaftlichen Verständnis der Rolle des Mikromilieus bei Krebserkrankungen sowie zur Entwicklung von entsprechenden Therapien bei.
Transgeneridades guerreiras: gênero e sexualidade em “Grande sertão: veredas”
Creators: name: Maia, Helder Thiago
name: Varizi, Gabriel
Publisher: name: Confluenze.  Rivista di Studi Iberoamericani
Year: 2022

description: A partir da comparação do romance Grande sertão: veredas (1956 [1994]), de Guimarães Rosa, e do romance gráfico Grande sertão: veredas (2021), de Guimarães Rosa, Rodrigo Rosa e Eloar Guazzelli, e também da análise da crítica literária sobre as donzelas guerreiras, estamos interessados em investigar como a transição de gênero vivida por Diadorim e sua relação homoerótica com Riobaldo são narradas pelas obras e entendidas pela crítica. Neste sentido, argumentamos que o paradigma das transgeneridades guerreiras pode ser uma chave de leitura mais humanizadora e menos normativa sobre o personagem.
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 2 (2022): Escapes of/from the queer in Ibero-America: aesthetics, narratives, political imagination of sex-gender dissidence
Stereotipi e discriminazioni razziali nella letteratura brasiliana per l’infanzia: un viaggio tra le illustrazioni
Creators: name: Milani, Ada
Publisher: name: Confluenze. Rivista di Studi Iberoamericani
Year: 2022

description: L’articolo si concentra sulla produzione brasiliana per l’infanzia e intende approfondire alcune delle strategie atte a sancire la subalternità dei personaggi afrodiscendenti. Adottando l’icona lobatiana di Tia Nastácia quale modello di rappresentazione negativa e stereotipata, si cercherà di gettare luce sulle raffigurazioni più comuni che, per buona parte del XX secolo, stigmatizzeranno – dal punto di vista visivo e testuale – la popolazione afrodiscendente incidendo negativamente sull’autopercezione di bambine e bambini neri.
description: Confluenze. Rivista di Studi Iberoamericani, Vol. 14 No. 1 (2022): VISUAL AMERICA. Political uses of images in Latin America (19th-21st centuries)
Multi-k magnetic structure and large anomalous Hall effect in candidate magnetic Weyl semimetal NdAlGe
Creators: name: Dhital, C.
name: Dally, R. L.
name: Ruvalcaba, R.
name: Gonzalez-Hernandez, R.
name: Guerrero-Sanchez, J.
name: Cao, H. B.
name: Zhang, Q.
name: Tian, W.
name: Wu, Y.
name: Frontzek, M. D.
name: Karna, S. K.
name: Meads, A.
name: Wilson, B.
name: Chapai, R.
name: Graf, D.
name: Bacsa, J.
name: Jin, R.
name: DiTusa, J. F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The magnetic structure, magnetoresistance, and Hall effect of non-centrosymmetric magnetic semimetal NdAlGe are investigated revealing an unusual magnetic state and anomalous transport properties that are associated with the electronic structure of this non-centrosymmetric compound. The magnetization and magnetoresistance measurements are both highly anisotropic and indicate an Ising-like magnetic system. The magnetic structure is complex in that it involves three magnetic ordering vectors including an incommensurate spin density wave and commensurate ferrimagnetic state in zero field. We have discovered a large anomalous Hall conductivity that reaches = 430 Ω-1cm-1 implying that it originates from an intrinsic Berry curvature effect stemming from Weyl nodes found in the electronic structure. These electronic structure calculations indicate the presence of nested Fermi surface pockets with nesting wave vectors similar to the measured magnetic ordering wavevector and the presence of Weyl nodes in proximity to the Fermi surface. We associate the incommensurate magnetic structure with the large anomalous Hall response to be the result of the combination of Fermi surface nesting and the Berry curvature associated with Weyl nodes.
description: 46 pages, 12 figures
Supplementary results for "Genetic overlap between Parkinson's disease and inflammatory bowel disease"
Creators: name: Kang, Xiaoying
name: Ploner, Alexander
name: Wang, Yunzhang
name: Ludvigsson, Jonas F
name: Williams, Dylan M
name: Pedersen, Nancy L
name: Wirdefeldt, Karin
Publisher: name: Zenodo
Year: 2022
Subjects: Parkinson's disease
Inflammatory bowel disease
Pleiotropy
Genome-wide association study

description: The file named "Revised_Fig_S1_KEGG.tiff" visualizes the KEGG pathways enriched by prioritized genes shared by Parkinson's disease and each subtype of inflammatory bowel disease. The file named "Revision_Supp_tables.xlsx" contains 7 data sets listing pleiotropic loci, genes, and curated gene sets shared by Parkinson's disease and each subtype of inflammatory bowel disease.
description: The supplement materials, derived from revised analysis, update the results reported in https://doi.org/10.5281/zenodo.5749664
Quasinormal modes and absorption cross sections of Born-Infeld-de Sitter black holes
Creators: name: Breton, Nora
name: Clark, Tyler
name: Fernando, Sharmanthie
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we have studied QNM modes and absorption cross sections of Born-Infeld-de Sitter black holes. WKB approximation is employed to compute the QNM modes of massless scalar fields. We have also used null geodesics to compute quasi-normal modes in the eikonal approximation. In the eikonal limit QNMs of black holes are determined by the parameters of the circular null geodesics. Unstable circular null orbits are derived from the effective metric which is obeyed by light rays under the influence of a nonlinear electromagnetic field. Comparison is shown with the QNM of the linear electromagnetic counterpart, the Reissner-Nordström black hole. Furthermore, the null geodesics are employed to compute the absorption cross sections in the high frequency limit via the sinc approximation.
description: Accepted to be published in International Journal of Modern Physics D
A recovery planning model for online business operations under the COVID-19 outbreak
Creators: name: Paul, Sanjoy Kumar
name: Moktadir, Md. Abdul
name: Sallam, Karam
name: Choi, Tsan-Ming
name: Chakrabortty, Ripon Kumar
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: This study analytically develops a new recovery planning optimisation model for managing the impacts of the recent COVID-19 outbreak for online business operations. Firstly, a mathematical model for the ideal plan is designed and then extended to generate a recovery plan in a finite planning horizon that maximises total profit. Recovery plans are generated considering two scenarios, namely the dynamic and uncertain situations. For the dynamic situation, a realistic system with time-dependent and dynamic demand, supply, and warehouse capacity for investigating the impacts of the COVID-19 outbreak is developed using several measures, such as collaborating with emergency suppliers, increasing warehouse capacity, and considering back-orders and lost sales to form recovery strategies. For the uncertain situation, demand, supply, and warehouse capacities are considered as uncertain variables. Further, an innovative solution approach using an adapted differential evolution technique, which is capable of (i) generating long-term recovery plans and (ii) solving both small- and large-scale problems, is developed. The results are illustrated using numerical analyses and simulation experiments. A sensitivity analysis is also conducted. In practice, the proposed optimisation model will assist the decision-makers of online business operations facing the COVID-19 outbreak to decide the optimal recovery plans.
Averaging method in combinatorics of symmetric polynomials
Creators: name: Mironov, A.
name: Morozov, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We elaborate on the recent suggestion to consider averaging of Cauchy identities for the Schur functions over power sum variables. This procedure has apparent parallels with the Borel transform, only it changes the number of combinatorial factors like $d_R$ in the sums over Young diagrams instead of just factorials in ordinary sums over numbers. It provides a universal view on a number of previously known, but seemingly random identities.
description: 15 pages
WP7: Societal and Ecosystem Consequences of Climate TPs
Creators: name: Hartley, Andy
Publisher: name: Zenodo
Year: 2024

description: This presentation was part of the TipESM Kick-off Meeting which was held from 23 – 24 January 2024 in Copenhagen hosted by the Danish Meteorological Institute as well as online.

Date: 23 January 2024

Presenter: Andy Hartley (Met Office UK) 

Find the agenda overview of the TipESM Kick-off Meeting here.
The COVID-19 pandemic and shareholder value: impact and mitigation
Creators: name: Klöckner, Maximilian
name: Schmidt, Christoph G.
name: Wagner, Stephan M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The financial implications of the worldwide COVID-19 pandemic and the effective mitigation of the negative effects are the subject of an ongoing debate. We aim to empirically substantiate this debate. Based on a sample of 4,032 publicly traded U.S. and Chinese firms, we conduct an event study and find that the COVID-19 pandemic is associated with a substantial decrease in shareholder value, significantly varying between U.S. and Chinese firms and across industries. We further identify structure- and supply chain-related firm factors that mitigate the negative impact. Specifically, we find that smaller firms experience a less negative impact on shareholder value, challenging established findings. Our results also suggest that a lower dependence on physical assets, a shorter trade cycle, and a higher degree of vertical integration attenuate the negative impact on shareholder value. Our findings provide important insights for managers and policymakers. We recommend managers to reduce the dependency on business models that strongly rely on physical assets, to streamline trade cycles, and to reduce supply chain complexity. From a policy perspective, we emphasise the importance of more industry-specific granularity of public support measures.
Dead or alive: Distinguishing active from passive particles using supervised learning
Creators: name: Janzen, Giulia
name: Smeets, Xander L. J. A.
name: Debets, Vincent E.
name: Luo, Chengjie
name: Storm, Cornelis
name: Janssen, Liesbeth M. C.
name: Ciarella, Simone
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A longstanding open question in the field of dense disordered matter is how precisely structure and dynamics are related to each other. With the advent of machine learning, it has become possible to agnostically predict the dynamic propensity of a particle in a dense liquid based on its local structural environment. Thus far, however, these machine-learning studies have focused almost exclusively on simple liquids composed of passive particles. Here we consider a mixture of both passive and active (i.e.\ self-propelled) Brownian particles, with the aim to identify the active particles from minimal local structural information. We compare a state-of-the-art machine learning approach for passive systems with a new method we develop based on Voronoi tessellation. Both methods accurately identify the active particles based on their structural properties at high activity and low concentrations of active particles. Our Voronoi method is, however, substantially faster to train and deploy because it requires fewer, and easy to compute, input features. Notably, both become ineffective when the activity is low, suggesting a fundamentally different structural signature for dynamic propensity and non-equilibrium activity. Ultimately, these efforts might also find relevance in the context of biological active glasses such as confluent cell layers, where subtle changes in the microstructure can hint at pathological changes in cell dynamics.
Effects on the CMB from Compactification Before Inflation
Creators: name: Kontou, Eleni-Alexandra
name: Blanco-Pillado, Jose J.
name: Hertzberg, Mark P.
name: Masoumi, Ali
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Many theories beyond the Standard Model include extra dimensions, though these have yet to be directly observed. In this work we consider the possibility of a compactification mechanism which both allows extra dimensions and is compatible with current observations. This compactification is predicted to leave a signature on the CMB by altering the amplitude of the low l multipoles, dependent on the amount of inflation. Recently discovered CMB anomalies at low multipoles may be evidence for this. In our model we assume the spacetime is the product of a four-dimensional spacetime and flat extra dimensions. Before the compactification, both the four-dimensional space- time and the extra dimensions can either be expanding or contracting independently. Taking into account physical constraints, we explore the observational consequences and the plausibility of these different models.
description: 21 pages, 5 Figures (references added)
Skyrmion knots in frustrated magnets
Creators: name: Sutcliffe, Paul
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A magnetic Skyrmion is a stable two-dimensional nanoparticle describing a localized winding of the magnetization in certain magnetic materials. Skyrmions are the subject of intense experimental and theoretical investigation and have potential technological spintronic applications. Here we show that numerical computations of frustrated magnets predict that Skyrmions can be tied into knots to form new stable three-dimensional nanoparticles. These stable equilibria of twisted loops of Skyrmion strings have an integer-valued topological charge, known as the Hopf charge, that counts the number of particles. Rings are formed for low values of this charge, but for higher values it is energetically favourable to form links and then knots. This computational study provides a novel impetus for future experimental work on these nanoknots and an exploration of the potential technological applications of three-dimensional nanoparticles encoding knotted magnetization.
description: 5 pages, 3 figures. To appear in PRL
Observational Signatures of Carbon-Oxygen White Dwarf Merger Remnants
Creators: name: Yao, Philippe Z.
name: Quataert, Eliot
name: Goulding, Andy
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Many double white dwarf (WD) mergers likely do not lead to a prompt thermonuclear explosion. We investigate the prospects for observationally detecting the surviving remnants of such mergers, focusing on the case of mergers of double Carbon-Oxygen WDs. For $\sim 10^4$ yr, the merger remnant is observationally similar to an extreme AGB star evolving to become a massive WD. Identifying merger remnants is thus easiest in galaxies with high stellar masses (high WD merger rate) and low star formation rates (low birth rate of $\sim 6-10 \,{\rm M_{\odot}}$ stars). Photometrically identifying merger remnants is challenging even in these cases because the merger remnants appear similar to He stars and post-outburst classical novae. We propose that the most promising technique for discovering WD merger remnants is through their unusual surrounding photoionized nebulae. We use CLOUDY photoionization calculations to investigate their unique spectral features. Merger remnants should produce weak hydrogen lines and strong carbon and oxygen recombination and fine-structure lines in the UV, optical and IR. With narrow-band imaging or integral field spectrographs, we predict that multiple candidates are detectable in the bulge of M31, the outskirts of M87 and other nearby massive galaxies, and the Milky Way. Our models roughly reproduce the WISE nebula surrounding the Galactic WD merger candidate IRAS 00500+6713; we predict detectable [Ne\,VI] and [Mg\,VII] lines with JWST but that the mid-IR WISE emission is dominated by dust not fine-structure lines.
description: 12 pages, 8 figures, 2 tables, accepted for publication in MNRAS
Vector boson production in joint resummation
Creators: name: Marzani, Simone
name: Theeuwes, Vincent
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the transverse momentum ($Q_T$) distribution of an electro-weak vector boson produced via the Drell-Yan mechanism, in the context of joint resummation. This formalism allows for the simultaneous resummation of logarithmic contributions that are enhanced at small $Q_T$ and at partonic threshold. We extend joint resummation to next-to-next-to leading logarithmic accuracy and we present resummed and matched results for three different phenomenological setups. In particular, we study the production of a $Z$ boson at the Tevatron and at the Large Hadron Collider (LHC), as well as the production of a heavier $Z^\prime$ at the LHC. We compare our findings to standard $Q_T$ resummation, as well as to fixed-order perturbation theory. We find that joint resummation provides a moderate (but not flat) correction with respect to $Q_T$ resummation and it leads to a reduction of the scale dependence of the results. However, our study also shows some limitations of this formalism. While the use of joint resummation for $Z$ production at the Tevatron and $Z^\prime$ production at the LHC appears to be justified, our implementation suffers from a stronger dependence on power corrections for processes which are further away from threshold, such as $Z$ production at the LHC, for which we cannot claim an improvement over standard $Q_T$ resummation.
description: 28 pages, 10 figures, published version
Signatures of the Mott transition in the antiferromagnetic state of the two-dimensional Hubbard model
Creators: name: Fratino, L.
name: Sémon, P.
name: Charlebois, M.
name: Sordi, G.
name: Tremblay, A. -M. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The properties of a phase with large correlation length can be strongly influenced by the underlying normal phase. We illustrate this by studying the half-filled two-dimensional Hubbard model using cellular dynamical mean-field theory with continuous-time quantum Monte Carlo. Sharp crossovers in the mechanism that favors antiferromagnetic correlations and in the corresponding local density of states are observed. These crossovers occur at values of the interaction strength $U$ and temperature $T$ that are controlled by the underlying normal-state Mott transition.
description: 5 pages, 3 figures and 4 appendices; published version
Central MONDian spike in spherically symmetric systems
Creators: name: Hernandez, X.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Under a MONDian view, astrophysical systems are expected to follow Newtonian dynamics whenever the local acceleration is above the critical $a_{0}=1.2 \times 10^{-10} m s^{-2}$, and enter a modified regime for accelerations below this critical value. Indeed, the dark matter phenomenology on galactic and subgalactic scales appears always, and only, at low accelerations. It is standard to find the $a
description: 6 pages, 3 figures. Accepted for publication in MNRAS
Topological Complexity of the Klein bottle
Creators: name: Cohen, Daniel C.
name: Vandembroucq, Lucile
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: We show that the (normalized) topological complexity of the Klein bottle is $4$. We also show that, for any $g\geq 2$, $TC(N_g)=4$. This completes the recent work by Dranishnikov on the topological complexity of non-orientable surfaces.
description: Improvements in the exposition. References added. To appear in Journal of Applied and Computational Topology