cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Application of AI in Solving Real-World Problems: A Retrieval-Augmented Generation Framework for Intelligent Information Access
Creators: name: Singh, Yuvraj
name: Singh, Urvashi
name: Singh, Tushar
Publisher: name: Zenodo
Year: 2025
Subjects: Retrieval augmented generation

description: This paper presents a Retrieval-AugmentedGeneration (RAG) system that integrates AI and advanceddata retrieval techniques to address real-world challenges. Thesystem processes diverse data formats, including PDFs, weblinks, videos, and images, leveraging Large Language Models(LLMs) and vector databases for semantic understanding. Ourapproach bridges the gap between traditional keyword-basedsystems and modern AI-driven solutions, offering precise,contextually relevant, and actionable insights. The paperdetails the methodology, results, and potential applicationsacross domains like education, healthcare, and customerservice, highlighting its transformative potential insimplifying information retrieval.
O(N_fα^2) Corrections to Muon Decay
Creators: name: Stuart, Robin G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The calculation of the $O(N_fα^2)$ corrections to muon decay is described. These are the 2-loop diagrams containing a massless fermion loop and they form an important gauge-invariant subclass. It is shown that all such diagrams can be expressed in terms of a universal master integral. We focus on the calculation of box diagrams and in particular on the removal of their infrared divergences.
description: 8 pages LaTeX. 3 figures. Uses amstex.sty, amssymb.sty, cite.sty and epsfig.sty. Talk presented at 3rd International Symposium on Radiative Corrections, CRAD`96, Cracow, Poland, 1--5 August, 1996
Non-invertible symmetries along 4d RG flows
Creators: name: Damia, Jeremias Aguilera
name: Argurio, Riccardo
name: Benini, Francesco
name: Benvenuti, Sergio
name: Copetti, Christian
name: Tizzano, Luigi
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore novel examples of RG flows preserving a non-invertible self-duality symmetry. Our main focus is on $\mathcal{N}=1$ quadratic superpotential deformations of 4d $\mathcal{N}=4$ super-Yang-Mills theory with gauge algebra $\mathfrak{su}(N)$. A theory that can be obtained in this way is the so-called $\mathcal{N}=1^*$ SYM where all adjoint chiral multiplets have a mass. Such IR theory exhibits a rich structure of vacua which we thoroughly examine. Our analysis elucidates the physics of spontaneous breaking of self-duality symmetry occurring in the degenerate gapped vacua. The construction can be generalized, taking as UV starting point a theory of class $\mathcal{S}$, to demonstrate how non-invertible self-duality symmetries exist in a variety of $\mathcal{N}=1$ SCFTs. We finally apply this understanding to prove that the conifold theory has a non-invertible self-duality symmetry.
description: 48 pages + appendices. v2: refs added and typos corrected
Submission on a proposed Data Act for the European Union from the perspective of open energy system analysis — Release 07
Creators: name: Morrison, Robbie
Publisher: name: Zenodo
Year: 2021
Subjects: open data
energy system analysis

description: A submission in response to the "Inception impact assessment: Data Act" document from the European Commission and associated public consultation. The 16 submitters are from the open energy modeling community. The submitters would like the European Union to mandate that all information under statutory reporting be licensed Creative Commons CC–BY–4.0.
Efimov universality with Coulomb interaction
Creators: name: Schmickler, C. H.
name: Hammer, H. -W.
name: Hiyama, E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The universal properties of charged particles are modified by the presence of a long-range Coulomb interaction. We investigate the modification of Efimov universality as a function of the Coulomb strength using the Gaussian expansion method. The resonant short-range interaction is described by Gaussian potentials to which a Coulomb potential is added. We calculate binding energies and root mean square radii for the three- and four-body systems of charged particles and present our results in a generalised Efimov plot. We find that universal features can still be discerned for weak Coulomb interaction, but break down for strong Coulomb interaction. The root-mean-square radius plateaus at increasingly smaller values for strong Coulomb interaction and the probablity distributions of the states become more concentrated inside the Coulomb barrier. As an example, we apply our universal model to nuclei with an alpha-cluster substructure. Our results point to strong non-universal contributions in that sector.
description: 18 pages, 9 figures, final version (with small orthographical corrections)
Role of interchain hopping in two disordered chains of spinless fermions
Creators: name: Orignac, E.
name: Suzumura, Y.
name: Giamarchi, T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of interchain hopping and interaction on Anderson localization has been investigated for two coupled chains of spinless fermions with nearest neighbor interaction. Using the renormalization group method, we find that interchain hopping plays a significant role when the correlation gap induced by the interplay of interchain hopping and intrachain interaction becomes larger than the Anderson localization energy scale induced by impurities. The strong competition between localization and delocalization is examined for attractive interaction.
description: 8 pages, 10 EPS figures, uses jpsj.sty (included)
Translation-Enhanced Multilingual Text-to-Image Generation
Creators: name: Li, Yaoyiran
name: Chang, Ching-Yun
name: Rawls, Stephen
name: Vulić, Ivan
name: Korhonen, Anna
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Research on text-to-image generation (TTI) still predominantly focuses on the English language due to the lack of annotated image-caption data in other languages; in the long run, this might widen inequitable access to TTI technology. In this work, we thus investigate multilingual TTI (termed mTTI) and the current potential of neural machine translation (NMT) to bootstrap mTTI systems. We provide two key contributions. 1) Relying on a multilingual multi-modal encoder, we provide a systematic empirical study of standard methods used in cross-lingual NLP when applied to mTTI: Translate Train, Translate Test, and Zero-Shot Transfer. 2) We propose Ensemble Adapter (EnsAd), a novel parameter-efficient approach that learns to weigh and consolidate the multilingual text knowledge within the mTTI framework, mitigating the language gap and thus improving mTTI performance. Our evaluations on standard mTTI datasets COCO-CN, Multi30K Task2, and LAION-5B demonstrate the potential of translation-enhanced mTTI systems and also validate the benefits of the proposed EnsAd which derives consistent gains across all datasets. Further investigations on model variants, ablation studies, and qualitative analyses provide additional insights on the inner workings of the proposed mTTI approaches.
description: ACL 2023 (Main)
Structure of Vacuum Condensates
Creators: name: Kisslinger, L. S.
name: Meissner, T.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is essential to know the space-time structure of the nonlocal vacuum condensates for application to medium energy processes. Using the Dyson-Schwinger formalism in the rainbow approximation for the quark propagator, we study the nonlocal quark condensate and model forms for the nonperturbative gluon propagator constrained by fits to local condensates and deep inelastic scattering with nucleon targets.
description: 8pages (REVTEX), 1 PostScript figure
A Linha do Tempo dos marcos e das publicações oficiais sobre pré-natal odontológico no âmbito do SUS
Creators: name: Bezerra de Lima Neto, Pedro
name: BRANDÃO, ANA LAURA
Publisher: name: Zenodo
Year: 2024
Subjects: Gestantes
Pré-natal
Cuidado Odontológico
Assistência à Gestante
Pré-natal Odontológico

description: Material infográfico interativo com a linha do tempo sobre os marcos e publicações oficiais a sobre o pré-natal odontológico no ambito do SUS, no Brasil.  Os documentos estão organizados em ordem crescente de cronologia e ao clicar sobre os títulos dos documentos, o leitor é direcionado ao documento publicado na íntregra. Obs.: Para acesso a interatividade é necessário baixar o PDF do documento.
The tilt of the velocity ellipsoid in the Milky Way with Gaia DR2
Creators: name: Hagen, Jorrit H. J.
name: Helmi, Amina
name: de Zeeuw, P. Tim
name: Posti, Lorenzo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The velocity distribution of stars is a sensitive probe of the gravitational potential of the Galaxy, and hence of its dark matter distribution. In particular, the shape of the dark halo (e.g. spherical, oblate, or prolate) determines velocity correlations, and different halo geometries are expected to result in measurable differences. Here we explore and interpret the correlations in the $(v_R, v_z)$-velocity distribution as a function of position in the Milky Way. We selected a high-quality sample of stars from the Gaia DR2 catalogue and characterised the orientation of the velocity distribution or tilt angle over a radial distance range of $[4-13]~$kpc and up to $3.5~$kpc away from the Galactic plane while taking into account the effects of the measurement errors. We find that the tilt angles change from spherical alignment in the inner Galaxy ($R\sim4~$kpc) towards more cylindrical alignments in the outer Galaxy ($R\sim11~$kpc) when using distances that take a global zero-point offset in the parallax of $-29~μ$as. However, if the amplitude of this offset is underestimated, then the inferred tilt angles in the outer Galaxy only appear shallower and are intrinsically more consistent with spherical alignment for an offset as large as $-54~μ$as. We further find that the tilt angles do not seem to strongly vary with Galactic azimuth and that different stellar populations depict similar tilt angles. Therefore we introduce a simple analytic function that describes the trends found over the full radial range. Since the systematic parallax errors in Gaia DR2 depend on celestial position, magnitude, and colour in complex ways, it is not possible to fully correct for them. Therefore it will be particularly important for dynamical modelling of the Milky Way to thoroughly characterise the systematics in astrometry in future Gaia data releases.
description: 15 pages, 13 figures, A&A
The quantum maxima for the basic graphs of exclusivity are not reachable in Bell scenarios
Creators: name: Porto, Lucas E. A.
name: Rabelo, Rafael
name: Cunha, Marcelo Terra
name: Cabello, Adán
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A necessary condition for the probabilities of a set of events to exhibit Bell nonlocality or Kochen-Specker contextuality is that the graph of exclusivity of the events contains induced odd cycles with five or more vertices, called odd holes, or their complements, called odd antiholes. From this perspective, events whose graph of exclusivity are odd holes or antiholes are the building blocks of contextuality. For any odd hole or antihole, any assignment of probabilities allowed by quantum mechanics can be achieved in specific contextuality scenarios. However, here we prove that, for any odd hole, the probabilities that attain the quantum maxima cannot be achieved in Bell scenarios. We also prove it for the simplest odd antiholes. This leads us to the conjecture that the quantum maxima for any of the building blocks cannot be achieved in Bell scenarios. This result sheds light on why the problem of whether a probability assignment is quantum is decidable, while whether a probability assignment within a given Bell scenario is quantum is, in general, undecidable. This also helps to undertand why identifying principles for quantum correlations is simpler when we start by identifying principles for quantum sets of probabilities defined with no reference to specific scenarios.
description: 9 pages, 4 figures
O'ZINI O'ZI BOSHQARISH
Creators: name: Turopova, Nigora
name: Misirov, Toxir
Publisher: name: Zenodo
Year: 2024

description: Mazkur taqdim etilayotgan maqolada tanlangan mavzuga doir asosiy tushunchalar, qo‘shimcha ma'lumotlar hamda muallif fikr mulohazalari keltirib o‘tilgan bo‘lib barcha uchun tavsiya etiladi. Ushbu maqola kerakli adabiyotlar hamda ijtimoiy tarmoqlarda yetarlicha ma'lumotlar asosida o‘rganilib tahlil qilindi.
Linear and nonlinear optical characteristics of the Falicov-Kimball model
Creators: name: Portengen, T.
name: Ostreich, Th.
name: Sham, L. J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We calculate the linear and nonlinear optical properties of the Falicov-Kimball model for a mixed-valent system within the self-consistent mean-field approximation. Second-harmonic generation can only occur if the mixed-valent state has a built-in coherence between the itinerant d-electrons and the localized f-holes. By contrast, second-harmonic generation cannot occur for solutions of the model with f-site occupation as a good quantum number. As an experimental test of coherence in mixed-valent compounds we propose a measurement of the dynamic second-order susceptibility.
description: 4 pages, 2 PostScript figures, to appear in Physical Review Letters
Governance matters on non-performing loans: Evidence from emerging markets
Creators: name: Byükoğlu, Burak
name: Šit, Ahmet
name: Ekši, İbrahim Halil
Publisher: name: PSL Quarterly Review
Year: 2021

description: In this study, new determinants of non-performing loans (NPL) for the MSCI emerging countries were investigated. For this purpose, a new index was formed using the World Bank’s Worldwide Governance Indicator data from 2002 to 2018. To test the effect of governance on NPL, we used the GMM technique. As a robustness test for GMM results, we employed the DOLSMG technique. According to the results, NPL was affected negatively by the DOI: governance index. This result could be of interest to policymakers and regulators as a macroprudential policy tool. JEL codes: C51; G21; G2 Keywords: Non-performing loans; Worldwide Governance Indicators
description: PSL Quarterly Review, Vol. 74 No. 296 (2021): March
Additional file 1: of Organizational culture and climate profiles: relationships with fidelity to three evidence-based practices for autism in elementary schools
Creators: name: Williams, Nathaniel
name: Frank, Hannah
name: Frederick, Lindsay
name: Rinad Beidas
name: Mandell, David
name: Aarons, Gregory
name: Green, Philip
name: Locke, Jill
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Standards for Reporting Implementation Studies: the StaRI checklist for completion. (DOCX 78 kb)
Higher-order Process Matrix Tomography of a passively-stable Quantum SWITCH
Creators: name: Antesberger, Michael
name: Quintino, Marco Túlio
name: Walther, Philip
name: Rozema, Lee A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The field of indefinite causal order (ICO) has seen a recent surge in interest. Much of this research has focused on the quantum SWITCH, wherein multiple parties act in a superposition of different orders in a manner transcending the quantum circuit model. This results in a new resource for quantum protocols, and is exciting for its relation to issues in foundational physics. The quantum SWITCH is also an example of a higher-order quantum operation, in that it not only transforms quantum states, but also other quantum operations. To date, no higher-order quantum operation has been completely experimentally characterized. Indeed, past work on the quantum SWITCH has confirmed its ICO by measuring causal witnesses or demonstrating resource advantages, but the complete process matrix has only been described theoretically. Here, we perform higher-order quantum process tomography. However, doing so requires exponentially many measurements with a scaling worse than standard process tomography. We overcome this challenge by creating a new passively-stable fiber-based quantum SWITCH using active optical elements to deterministically generate and manipulate time-bin encoded qubits. Moreover, our new architecture for the quantum SWITCH can be readily scaled to multiple parties. By reconstructing the process matrix, we estimate its fidelity and tailor different causal witnesses directly for our experiment. To achieve this, we measure a set of tomographically complete settings, that also spans the input operation space. Our tomography protocol allows for the characterization and debugging of higher-order quantum operations with and without an ICO, while our experimental time-bin techniques could enable the creation of a new realm of higher-order quantum operations with an ICO.
description: 20 pages (12 pages, 4 pages appendix + reference list and introduction), 8 figures; v2 with updated funding information
On the nature of the transition from the spontaneously dimerized to the Neel phase in the two-dimensional J1-J2 model
Creators: name: Kotov, Valeri N.
name: Sushkov, Oleg P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the spectrum of the 2D S=1/2 frustrated Heisenberg model near the transition from the spontaneously dimerized spin-liquid phase into the Neel ordered phase. Two excitation branches: the triplet magnon, and the collective singlet mode, both become gapless at the transition point. However we find that the length scales associated with these modes are well separated at the quantum transition. While in the quantum disordered phase the singlet excitation has finite spectral weight and reflects the existence of spontaneous dimer order, near the transition point the size of the singlet bound state grows exponentially with the correlation length, and hence the quasiparticle residue is exponentially small. Therefore the critical dynamics remains in the O(3) universality class in spite of the four gapless modes.
description: 5 pages, 3 figures
Boosted Top quark polarization
Creators: name: Godbole, Rohini
name: Guchait, Monoranjan
name: Khosa, Charanjit K.
name: Lahiri, Jayita
name: Sharma, Seema
name: Vijay, Aravind H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In top quark production, the polarization of top quarks, decided by the chiral structure of couplings, is likely to be modified in the presence of any new physics contribution to the production. Hence the same is a good discriminator for those new physics models wherein the couplings have a chiral structure different than that in the Standard Model (SM). In this note we construct probes of the polarization of a top quark decaying hadronically, using easily accessible kinematic variables such as the energy fraction or angular correlations of the decay products. Tagging the boosted top quark using the usual jet sub structure technique we study robustness of these observables for a benchmark process, $W^{\prime} \to tb$. We demonstrate that the energy fraction of b-jet in the laboratory frame and a new angular variable, constructed by us in the top rest frame, are both very powerful tools to discriminate between the left and right polarized top quarks. Based on the polarization sensitive angular variables, we construct asymmetries which reflect the polarization. We study the efficiency of these variables for two new physics processes where which give rise to boosted top quarks: (i) decay of the top squark in the context of supersymmetry searches, and (ii) decays of the Kaluza-Klein(KK) graviton and KK gluon, in Randall Sundrum(RS) model. Remarkably, it is found that the asymmetry can vary over a wide range about +20\% to -20\%. The dependence of asymmetry on top quark couplings of the new particles present in these models beyond the SM (BSM) is also investigated in detail.
description: 19 pages, 12 figures, Substantially revised text, results remain unchanged. Added few references. To be published in Physical Review D
Additional file 1: of A pilot study of a pharmacist-led prescribing program for final-year medical students
Creators: name: Newby, David
name: Stokes, Barrie
name: Smith, Anthony
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Feedback session questions. Questions asked during the feedback sessions at the end of the prescribing program. (PDF 83 kb)
title: Analytical Study of Solution‐Processed Tin Oxide as Electron Transport Layer in Printed Perovskite Solar Cells
Creators: name: Rohnacher, Valentina
name: Ullrich, Florian
name: Eggers, Helge
name: Schackmar, Fabian
name: Hell, Sebastian
name: Salazar, Adriana
name: Huck, Christian
name: Hernandez‐Sosa, Gerardo
name: Paetzold, Ulrich W.
name: Jaegermann, Wolfram
name: Pucci, Annemarie
Publisher: name: Wiley-VCH
Year: 2024

description: Solution‐processed tin oxide (SnOₓ) electron transport layers demonstrate excellent performance in various optoelectronic devices and offer the ease of facile and low cost deposition by various printing techniques. The most common precursor solution for the preparation of SnOₓ thin films is SnCl₂ dissolved in ethanol. In order to elucidate the mechanism of the precursor conversion at different annealing temperatures and the optoelectronic performance of the SnOₓ electron transport layer, phonon and vibrational infrared and photoelectron spectroscopies as well as atomic force microscopy are used to probe the chemical, physical, and morphological properties of the SnOₓ thin films. The influence of two different solvents on the layer morphology of SnOₓ thin films is investigated. In both cases, an increasing annealing temperature not only improves the structural and chemical properties of solution‐processed SnOₓ, but also reduces the concentration of tin hydroxide species in the bulk and on the surface of these thin films. As a prototypical example for the high potential of printed SnOₓ layers for solar cells, high performance perovskite solar cells with a stabilized power conversion efficiency of over 15% are presented.
Transport through a magnetic impurity: a slave-spin approach
Creators: name: Guerci, Daniele
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study transport across a magnetic impurity by means of a recently developed slave-spin technique that does not require any constraint. Within a conserving mean-field approximation we find a conductance that displays both the known zero-bias anomaly but also the expected peak at bias of order U. We extend the slave-spin mean-field approximation to study the out of equilibrium transient evolution of a quantum dot. We apply the method to investigate the time-evolution of a quantum dot induced by a time-dependent electrochemical potential applied to the contacts. Similarly to the time-dependent Gutzwiller approximation, the mean-field slave-spin dynamics is able to capture dissipation in the leads, so that a steady-state is reached after a characteristic relaxation time.
description: 13 pages, 6 figures
Additional file 2: of Organizational culture and climate profiles: relationships with fidelity to three evidence-based practices for autism in elementary schools
Creators: name: Williams, Nathaniel
name: Frank, Hannah
name: Frederick, Lindsay
name: Rinad Beidas
name: Mandell, David
name: Aarons, Gregory
name: Green, Philip
name: Locke, Jill
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Table S1. Raw Correlation Matrix of OSC Dimensions and Fidelity Measures. Table S2. OLS Regression Analyses Linking OSC Dimensions to Evidence-Based Practice Fidelity. (DOCX 43 kb)
On two recent attempts to introduce animal spirits in macroeconomics: Heresy or enlightened church reform?
Creators: name: Togati, Teodoro Dario
Publisher: name: PSL Quarterly Review
Year: 2021

description: As noted by Alan Greenspan in 2008, one key flaw in standard models is that they treat animal spirits as a simple ‘add factor’ rather than as a structural one. This paper evaluates the extent to which two recent approaches placing the emphasis on animal spirits – namely Farmer’s ‘Neo-Paleo-Keynesian’ (NPK) project and Akerlof and Shiller’s behavioural approach – manage to overcome this flaw. By following the powerful religious metaphor introduced by Farmer, according to which general equilibrium theory underlying standard models should be regarded as a ‘church’, this paper stresses two points. First, animal spirits turn out to be devilish features that are inconsistent with the church’s commandments. Second, by trying to reconcile them with the church, these two approaches are unable to truly reform it as required by Greenspan; rather, they appear to be heretical stances that are forced to violate some fundamental dogmas of the church. JEL codes: E12, E13, E32 Keywords: Animal spirits, general equilibrium, research programmes, Keynesian economics, macroeconomic models
description: PSL Quarterly Review, Vol. 74 No. 296 (2021): March
Hodge groups of abelian varieties with purely multiplicative reduction
Creators: name: Silverberg, A.
name: Zarhin, Yu. G.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14K15 (Primary) 11G10 (Secondary)

description: The main result of the paper is that if $A$ is an abelian variety over a subfield $F$ of ${\bold C}$, and $A$ has purely multiplicative reduction at a discrete valuation of $F$, then the Hodge group of $A$ is semisimple. Further, we give necessary and sufficient conditions for the Hodge group to be semisimple. We obtain bounds on certain torsion subgroups for abelian varieties which do not have purely multiplicative reduction at a given discrete valuation, and therefore obtain bounds on torsion for abelian varieties, defined over number fields, whose Hodge groups are not semisimple.
description: This is an updated version of the paper. LaTeX2e or LaTeX2.09 or AMSLaTeX. Contact: silver@math.ohio-state.edu
Gravitational-wave tails of memory at 4PN order
Creators: name: Trestini, David
name: Blanchet, Luc
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a novel cubic nonlinear effect, the tails-of-memory, which consist of a combination of the tail effect (backscattering of linear gravitational waves against the curvature of spacetime generated by the source) and the memory effect (due to reradiation of gravitational waves by linear gravitational waves themselves). Our final result is consistent with a straightforward direct computation of the memory effect, but also involves many non-trivial tail-like terms.
description: Contribution to the 2023 Gravitation session of the 57th Rencontres de Moriond. 5 pages, 1 figure. v2: corrected a typo in Eq. (11)
A procedure for multimodal brain tumor segmentation
Creators: name: Zhang, Hongda
Publisher: name: University of Iowa
Year: 2026
Subjects: MRF
segmentation
public abstract

description: Interpretable, accurate, and reproducible brain tumor segmentation approaches are crucial to diagnosis, treatment planning, and follow-ups of brain tumors. A three-stage procedure for multimodal brain tumor segmentation is proposed in the thesis. The procedure segments a glioma patient’s brain into healthy tissue types and tumor tissue types by assigning labels to each volume element. The contextual constraints on the tissues are modeled by a Potts model and the interactions among observed grayscale values are modeled by a Gaussian Markov random field (GMRF). Instead of treating all types of tissue equally as in conventional hierarchical MRF models, independent and correlated bright signals are defined. Disjoint regions identified as correlated bright signals are allowed to have independent GMRF parameters. An iterated conditional modes algorithm is used to find the local maxima of the posterior distributions. The different modalities of magnetic resonance images are preprocessed
description: and segmented in a sequence where the T1ce image is preprocessed and segmented first, the FLAIR image is preprocessed and segmented second, and the T2 image is preprocessed and segmented last. A postprocessing approach is also proposed to yield final segmentation results. The performance of the proposed procedure has been evaluated on the data provided by the Multimodal Brain Tumor Segmentation Challenge (BraTS 2019). The experimental results show that the proposed procedure can yield accurate brain tumor segmentation.
ECB quantitative easing, euro depreciation and supply chains: Industry-level estimates for Germany, Italy and Greece. New prospects for a Minskyan big bank?
Creators: name: Gobbi, Lucio
name: Lucarelli, Stefano
Publisher: name: PSL Quarterly Review
Year: 2021

description: We investigate how the 2014-2016 depreciation of the euro against the US dollar triggered a cascade effect on the European supply chains which reduced the current account imbalances among the EU member states. In particular, we analyze the specific case of Greece to verify whether the higher export demand towards the USA in the two main European exporting countries, Germany and Italy, increased the demand for Greek goods and services by the German and Italian economies. We employee a linear ARDL model which is able to track short- and long-term effects of the depreciation on the industries of Greece with respect to Germany, Italy and the USA for the period 2010-2016 using bilateral monthly data. The empirical findings show that the euro depreciation increased the integration between the German and Greek production structures in various industries representing more than 35% of the entire trade between the two countries. JEL codes: F31; F32 Keywords: Industry trade; bounds testing; J-curve; Minskyan big bank
description: PSL Quarterly Review, Vol. 74 No. 296 (2021): March
Search for Glueballs from Three-body Annihilation of Antiproton-Proton in-Flight
Creators: name: Zou, Bing-Song
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lattice QCD and other theoretical models predict that the 0(-+), 2(++) and 2(-+) glueballs have masses in the range of 2.0 to 2.4 GeV. For resonances in such an energy range, three-body decay modes are expected to be large. The strategy for looking for these glueballs and the newest results from studying Crystal Barrel data on the three-body annihilation of proton-antiproton in flight are presented.
description: Latex with espcrc1.sty, 10 pages, 7 figures. Invited talk at the International Conference on Low Energy Antinucleon Physics (LEAP98), Sardinia, Italy, September 1998
ELASTIC PROPERTIES OF THE MEDIUM WITH ITS VISCOPLASTIC COURSE IN THE GAP BETWEEN COAXIAL CYLINDRICAL SURFACES
Creators: name: Dinh Quang Duc
name: Van Thi Kim Xuyen
Publisher: name: Zenodo
Year: 2024

description: The rectilinear motions of a viscoplastic medium have been studied repeatedly [1, 2]. It turned out that it was possible to take into account the influence of the elastic properties of the medium on the parameters of such movements only within the framework of the theory of large deformations. It was on this basis that the first solutions to some model problems [3, 4] about the rectilinear motion of elastoviscoplastic media with subsequent unloading were obtained. In this note, we will construct an exact analytical solution to the boundary value problem of the theory of large elasto-viscoplastic deformations about the motion of a medium in the gap between coaxial cylindrical surfaces, when the outer one is stationary, and the inner one moves initially accelerated, followed by an equally slow stop. The nature of the movement of elastoplastic boundaries is indicated and the residual stresses in the material are calculated.
Reinstating fiscal policy for normal times: Public investment and Public Jobs Programmes
Creators: name: Gasperin, Simone
name: Skidelsky, Robert
Publisher: name: PSL Quarterly Review
Year: 2021

description: This paper upholds the classical Keynesian position that a laissez-faire market economy lacks a spontaneous tendency to full employment. Focusing on the UK case, it argues that monetary policy could not prevent the economic collapse of 2008-9 or achieve full recovery from the Great Recession that followed. The paper then outlines the case for fiscal policy to regain a permanent status of primacy in modern macroeconomic management, beyond the pandemic emergency. It distinguishes between public investment and automatic stabilisers, reducing discretionary actions to a minimum. It presents the case for re-empowering the State’spublic investment function and for reforming the system of automatic counter-cyclical stabilisers by means of public jobs programmes. JEL codes: E32, E52, E61, E62, E63, H54, J68 Keywords: monetary policy, fiscal policy, public investment, job programmes
description: PSL Quarterly Review, Vol. 74 No. 296 (2021): March
Coherent light propagation through cold atomic clouds beyond the independent scattering approximation
Creators: name: Kwong, Chang Chi
name: Wilkowski, David
name: Delande, Dominique
name: Pierrat, Romain
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We calculate the relative permittivity of a cold atomic gas under weak probe illumination, up to second order in the density. Within the framework of a diagrammatic representation method, we identify all the second order diagrams that enter into the description of the relative permittivity for coherent light transmission. These diagrams originate from pairwise position correlation and recurrent scattering. Using coupled dipole equations, we numerically simulate the coherent transmission with scalar and vector waves, and find good agreement with the perturbative calculations. We applied this perturbative expansion approach to a classical gas at rest, but the method is extendable to thermal gas with finite atomic motion and to quantum gases where non-trivial pair correlations can be naturally included.
Intermediate baseline appearance experiments and three-neutrino mixing schemes
Creators: name: Cardall, Christian Y.
name: Fuller, George M.
name: Cline, David B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Three-neutrino mixing schemes suggested by Cardall & Fuller and Acker & Pakvasa are compared and contrasted. Both of these schemes seek to solve the solar and atmospheric neutrino problems and to account for the possible neutrino oscillation signal in the LSND experiment. These neutrino oscillation schemes have different atmospheric and solar neutrino signatures that will be discriminated by Super-Kamiokande and SNO. They will also have different signatures in proposed long-baseline accelerator and reactor experiments. In particular, both of these schemes would give dramatic (and dramatically different) signals in an ``intermediate baseline'' experiment, such as the proposed ICARUS detector in the Jura mountains 17 km from CERN.
description: 12 pages, latex; uses elsart.sty, elsart12.sty, and epsf.sty
Research Software Alliance: Catalyzing community-led collaborations
Creators: name: Barker, Michelle
name: Katz, Daniel S.
name: Hartley, Kim
Publisher: name: Zenodo
Year: 2024
Subjects: research software
Alfred P. Sloan Foundation
community
policy
infrastructure

description: This proposal was successfully submitted to the Alfred P. Sloan Foundation in early 2024. This additional support from the Sloan Foundation will enable the Research Software Alliance (ReSA) to continue community-led collaborations on common challenges in the research software ecosystem throughout 2024-26. The project aim will be achieved through the following three activities: establish two stakeholder forums (following the model of the highly successful Research Software Funders Forum); lay the groundwork – through actionable recommendations for community-supported routes – for convening an international research software conference; and provide seed funding for task forces that will advance research software globally. 

ReSA’s focus aligns with the goals of the Sloan Foundation’s Technology program - Better Software for Science to develop practices, norms, and institutions that can better promote the development and adoption of discovery-enhancing software.
Motional diminishing of optical activity: a novel method for studying molecular dynamics in liquids and plastic crystals
Creators: name: Martin, Michael C.
name: Mihaly, Laszlo
Publisher: name: arXiv
Year: 1996
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Condensed Matter (cond-mat)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Molecular dynamics calculations and optical spectroscopy measurements of weakly active infrared modes are reported. The results are qualitatively understood in terms of the "motional diminishing" of IR lines, a process analogous to the motional narrowing of a nuclear magnetic resonance (NMR) signal. In molecular solids or liquids where the appropriate intramolecular resonances are observable, motional diminishing can be used to study the fluctuations of the intermolecular interactions having time scales of 1psec to 100psec.
description: RevTeX in LaTeX file, 12 preprint pages, 4 ps figures included. Also available from http://insti.physics.sunysb.edu/~mmartin/pubs.html Accepted for publication in Chem. Phys. Lett
Additional file 4: of Exercise, or exercise and diet for the management of polycystic ovary syndrome: a systematic review and meta-analysis
Creators: name: Kite, Chris
name: Lahart, Ian
name: Afzal, Islam
name: Broom, David
name: Randeva, Harpal
name: Kyrou, Ioannis
name: Brown, James
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional meta-analyses/complete dataset. Supplementary meta-analyses: exercise vs. control; exercise and diet versus diet. (PDF 913 kb)
title: Librarians Learning Together
title: An Introduction to the Profession
titleType: Subtitle
Creators: name: Burek Pierce, Jennifer
name: Henke, Nancy A
Publisher: name: University of Iowa
Year: 2023
Subjects: Library and information services
Library Science

description: This open textbook for students in core Library and Information Science courses introduces students to selected historical and contemporary issues in LIS. Centered on the question, “What is a library?,” the text includes explorations of norms of practice in libraries, information gathering, and professional values. This text offers students – both those who currently work in libraries and those who don’t – a foundational exploration of theoretical and ethical issues related to the field.
The Full-Sky Angular Bispectrum in Redshift Space
Creators: name: Di Dio, Enea
name: Durrer, Ruth
name: Maartens, Roy
name: Montanari, Francesco
name: Umeh, Obinna
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the redshift-dependent angular bispectrum of galaxy number counts at tree-level, including nonlinear clustering bias and estimating numerically for the first time the effect of redshift space distortions (RSD). We show that for narrow redshift bins the amplitude of nonlinear RSD is comparable with the matter density perturbations. While our numerical results only include terms relevant on sub-horizon scales, the formalism can readily be extended to the full tree-level bispectrum. Our approach does not rely on the flat-sky approximation and it can be easily generalized to different sources by including the appropriate bias expansion. We test the accuracy of Limber approximation for different z-bins. We highlight the subtle but relevant differences in the angular bispectrum of galaxy number counts with respect to CMB, due to the different scale dependence of perturbations. Our formalism can also be directly applied to the angular HI intensity mapping bispectrum.
description: 31 pages, 10 figures. Version accepted by JCAP. Byspectrum code available at https://gitlab.com/montanari/byspectrum
title: Poly‐γ‐S‐perillyl‐l‐glutamate and Poly‐γ‐S‐perillyl‐D‐glutamate: Diastereomeric Alignment Media Used for the Investigation of the Alignment Process
Creators: name: Alcaraz Janßen, Marcel
name: Thiele, Christina M.
Publisher: name: Wiley-VCH
Year: 2024

description: Residual dipolar couplings (RDCs) offer additional information for structure elucidation by NMR spectroscopy. They are measured in anisotropic media, such as lyotropic liquid crystalline phases of polypeptides. Today, some suitable polypeptides are known. Nevertheless, structural influences of these polypeptides on the alignment properties are not really understood. Thus, which influence a chiral side chain has on enantiodiscrimination and whether we can improve the enantiodifferentiation significantly by adding an additional chiral center in the side chain are questions of interest. Therefore, new diastereomeric polypeptide‐based alignment media with an additional chiral center in the side chain derived from perillyl alcohol were synthesized and their properties were investigated (secondary structure, liquid crystallinity, etc.). The enantiomers of isopinocampheol and β‐pinene were used as model analytes for the study of enantiodiscrimination. Additionally, the usage of ¹H–¹H‐RDCs to improve the alignment tensor quality is demonstrated.
Constraints on the interacting vacuum -- geodesic CDM scenario
Creators: name: Martinelli, Matteo
name: Hogg, Natalie B.
name: Peirone, Simone
name: Bruni, Marco
name: Wands, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate an interacting dark sector scenario in which the vacuum energy is free to interact with cold dark matter (CDM), which itself is assumed to cluster under the sole action of gravity, i.e. it is in free fall (geodesic), as in $Λ$CDM. The interaction is characterised by a dimensionless coupling $q_{\rm V}$ that we constrain using cosmic microwave background data from the Planck 2015 data release, along with baryon acoustic oscillation, redshift space distortion and Type Ia supernova measurements. We present the full linear perturbation theory of this interacting scenario and use MCMC sampling to study five different cases: two cases in which we have $Λ$CDM evolution in the distant past, until a set redshift $z_{\rm trans}$, below which the interaction switches on and $q_{\rm V}$ is the single sampled parameter, with $z_{\rm trans}$ fixed at $z_{\rm trans}=3000$ and $z_{\rm trans}=0.9$ respectively; a case where we allow this transition redshift to vary along with $q_{\rm V}$; a case in which the vacuum energy is zero for $z>z_{\rm trans}$ and then begins to grow once the interaction switches on; and the final case in which we bin $q_{\rm V}(z)$ in four redshift bins to investigate the possibility of a dynamical interaction, reconstructing the redshift evolution of the function using Gaussian processes. We find that, in all cases where the high redshift evolution is not modified, the results are compatible with a vanishing coupling, thus finding no significant deviation from $Λ$CDM.
description: 17 pages, 14 figures. Version 2 aligns with the published MNRAS article (some model comparison discussion added with respect to version 1)
Form Factors for Quasi-particles in c=1 Conformal Field Theory
Creators: name: van Elburg, R. A. J.
name: Schoutens, K.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The non-Fermi liquid physics at the edge of fractional quantum Hall systems is described by specific chiral Conformal Field Theories with central charge c=1. The charged quasi-particles in these theories have fractional charge and obey a form of fractional statistics. In this paper we study form factors, which are matrix elements of physical (conformal) operators, evaluated in a quasi-particle basis that is organized according to the rules of fractional exclusion statistics. Using the systematics of Jack polynomials, we derive selection rules for a special class of form factors. We argue that finite temperature Green's functions can be evaluated via systematic form factor expansions, using form factors such as those computed in this paper and thermodynamic distribution functions for fractional exclusion statistics. We present a specific case study where we demonstrate that the form factor expansion shows a rapid convergence.
description: 36 pages, 1 postscript figure