cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
[Poemas originales escritos en la cárcel – Sobre 2]
Creators: name: Marcos, Ana
name: Ana, Marcos
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Littérature
Poésie

description: - [El cielo aquella tarde] (1 p. numérotée 3 ; img. 001),
- [Versos izados. Banderas] (2 p. numérotées 3-4 ; img. 001-002), 
- [Mi pecado es terrible] (1 p. numérotée 4 ; img. 002),
- "¡A votar!" (1 p. numérotée 2 ; img. 003),
- [En abril ; cuando las flores] (2 p. numérotées 2, s.n. ; img. 003-004),
- [Abril es el Heraldo del estío] (1 p. s.n. ; img. 004),
- [desgarran en mis muros cotidianos] (1 p. numérotée 3 ; img. 005),
- [¿Esto es amor? Dijiste…(Y aún te siento] (1 p. numérotée 3 ; img. 005),
- [¡No puedo más, amor, amor querido!] (1 p. s.n. ; img. 006),
- [Se acabaron en mi las primaveras] (1 p. s.n. ; img. 006),
- [Soy un árbol de hielo" recién hecho] (1 p. s.n. ; img. 007),
- "El perseguido" (2 p. s.n. ; img. 007-008),
- "Oración a la noche" (2 p. numérotées s.n., 4 ; img. 008-009),
- [No te has muerto Nicolás] (2 p. s.n. ; img. 009-010) : Mention d’un "E" encerclé sur les deux pages.
- [Los c queremos] (1 p. numérotée 5 ; img. 011),
- "A los 20 años" (2 p. numérotées 5, s.n. ; img. 011-012),
- "Romance para las doce menos cuarto" (2 p. numérotées s.n., 4 ; img. 012-013),
- "18 de julio" (1 p. numérotées 6 ; img. 013),
- [Buscaron en la Biblia] (2 p. numérotées 6, s.n. ; img. 013-014),
- [Hablaré por vosotros] (1 p. s.n. ; img. 014),
- [Yo sé que hay frentes en que por dentro tienen] (1 p. s.n. ; img. 014),
- [II - ¿Pero quien soy yo, que barco de dolor] (1 p. numérotée 7 ; img. 015) : Parties II et III d’un poème.
- [No sabéis lo que es vivir] (1 p. s.n. ; img. 016),
- "Pequeña carta al mundo" (2 p. s.n. ; img. 017-018),
- "1° de Mayo de 1936. A mis camaradas de ayer y de hoy y de siempre." (1 p. numérotée 8/1 ; img. 019),
- [Rojas flore, azules… Aquel año] (1 p. numérotée 8/1 ; img. 019),
- [Cinco mil eran] (2 p. numérotées 8, s.n [1-2] ; img. 019-020),
- [Sigue un paso más hermano] (1 p. numérotée s.n./2 ; img. 020),
- [Soñar siempre soñar] (1 p. numérotée s.n./2 ; img. 020),
- [Hay una roja de Sol] (1 p. numérotée 10 ; img. 021),
- [¿Por que al preso va dejando] (1 p. numérotée 10 ; img. 021) : texte écrit dans le sens vertical, à droite du précédent.
- "Poema informativo (noticias del planeta)" (2 p. numérotées 10, s.n. ; img. 021-022),
- "Elegia (A Luciano Parrondo muerto de franquismo en 1958, con el que viví preso en 1939)" (2 p. s.n. ; img. 022-023) : Note à la fin de ce poème : De "Raíces del Alba" y perteneciente a la serie de "Elegías".
description: Notes : Papier blanc très fin dont on voit par transparence l’écriture au verso. Stylo bleu. Rares corrections.
description: Source: Num. Ref. : MA-AA-002
description: Source: Localisation du fonds : Archives Marcos Ana. Madrid (Espagne)
description: created: 1946/1961
Renormalization of nonequilibrium dynamics at large N and finite temperature
Creators: name: Baacke, Juergen
name: Heitmann, Katrin
name: Patzold, Carsten
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize a previously proposed renormalization and computation scheme for nonequilibrium dynamics to include finite temperature and one-loop selfconsistency as arising in the large-N limit. Since such a scheme amounts essentially to tadpole summation, it also includes, at high temperature, the hard mass corrections proportional to T^2. We present some numerical examples at T=0 and at finite temperature; the results reproduce the essential features of other groups. Especially, we can confirm a recently discovered sum rule for the late time behaviour.
description: 20 pages, LaTeX, 12 Figures as ps-files
Chromatographic And Spectral Analysis Of Sesbania Grandiflora L.Bark
Creators: name: Minal, Patil
name: Kailaspati, Chittam
name: Shailesh, Patil
Publisher: name: Zenodo
Year: 2021
Subjects: PHARMACY

description: Current research is being conducted to investigate the chromatographic analysis and appearance of theSesbania grandiflora plant. L tools. Soxhlet is used for the extraction of organic solvent. Water andmethanol are used as solvents. Plant quality analysis was performed using standard chemical methods.The results show that the presence of alkaloids, carbohydrates, phenolic compound, tannin, flavonoidsand saponins was found in plant extracts. An investigation was under way to determine if there wereany chemical compounds in the Sesbania grandiflora. L by analysis of HPTLC, UV, IR and NMR.Keywords:- Phytochemical study, Sesbania grandiflora (L.) bark, spectroscopy, chromatography etc
Correlated hopping in the Falicov-Kimball model: A large-dimensions study
Creators: name: Schiller, Avraham
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Falicov-Kimball model with a correlated-hopping interaction is solved using an extended dynamical mean-field theory that becomes exact in the limit of large dimensions. The effect of correlated hopping is to introduce nonlocal self-energy components that retain full dynamics as D goes to infinity, thus introducing an explicit k-dependence to the single-particle self-energy. An explicit solution for the homogeneous phase at D = 2 reveals significant nonlocal dynamical contributions in the physically relevant regime of a moderately large correlated-hopping amplitude, indicating that important nonlocal correlations are omitted in Hubbard-like models upon neglecting the correlated-hopping interaction.
description: 4 pages, 4 figures; to appear in Phys. Rev. B
Leveraging paraprofessionals and family strengths to improve coverage and penetration of nutrition and early child development services
Creators: name: Sanders, D
name: Tomlinson, M
name: Maselko, J
name: Rahman, A
name: Rotheram-Borus, M.J
Publisher: name: Blackwell Publishing Inc.
Year: 2014

description: Children need to be protected in intergenerational networks, with parents who have positive mood, resources to feed their children, and skills to promote early childhood development (ECD). Globally, more than 200 million children are raised annually without these resources. This article reviews the potential contributions of increasing coverage and penetration of services for these children, challenges to achieving penetration of services in high-risk families, opportunities created by bundling multiple services within one provider, potential leveraging of paraprofessionals to deliver care, and mobilizing communities to support children in households at high risk for negative outcomes. We end with a number of suggestions for how to ensure the equitable scale-up of integrated ECD and nutrition services that take into account current global priorities, as well as coverage and penetration of services.
Google Summer of Code: Student Motivations and Contributions
Creators: name: Silva, Jefferson O.
name: Wiese, Igor
name: German, Daniel M.
name: Treude, Christoph
name: Gerosa, Marco A.
name: Steinmacher, Igor
Publisher: name: arXiv
Year: 2019
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Several open source software (OSS) projects expect to foster newcomers' onboarding and to receive contributions by participating in engagement programs, like Summers of Code. However, there is little empirical evidence showing why students join such programs. In this paper, we study the well-established Google Summer of Code (GSoC), which is a 3-month OSS engagement program that offers stipends and mentors to students willing to contribute to OSS projects. We combined a survey (students and mentors) and interviews (students) to understand what motivates students to enter GSoC. Our results show that students enter GSoC for an enriching experience, not necessarily to become frequent contributors. Our data suggest that, while the stipends are an important motivator, the students participate for work experience and the ability to attach the name of the supporting organization to their resumés. We also discuss practical implications for students, mentors, OSS projects, and Summer of Code programs.
description: 30 pages
Unconventional quantum optics in topological waveguide QED
Creators: name: Bello, Miguel
name: Platero, Gloria
name: Cirac, Juan Ignacio
name: González-Tudela, Alejandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The discovery of topological materials has challenged our understanding of condensed matter physics and led to novel and unusual phenomena. This has motivated recent developments to export topological concepts into photonics to make light behave in exotic ways. Here, we predict several unconventional quantum optical phenomena that occur when quantum emitters interact with a topological waveguide QED bath, namely, the photonic analogue of the Su-Schrieffer-Hegger model. When the emitters frequency lies within the topological band-gap, a chiral bound state emerges, which is located at just one side (right or left) of the emitter. In the presence of several emitters, it mediates topological, long-range tunable interactions between them, that can give rise to exotic phases such as double Néel ordered states. On the contrary, when the emitters' optical transition is resonant with the bands, we find unconventional scattering properties and different super/subradiant states depending on the band topology. We also investigate the case of a bath with open boundary conditions to understand the role of topological edge states. Finally, we propose several implementations where these phenomena can be observed with state-of-the-art technology.
description: 17 pages, 10 figures
Fiber 2-Functors and Tambara-Yamagami Fusion 2-Categories
Creators: name: Décoppet, Thibault D.
name: Yu, Matthew
Publisher: name: arXiv
Year: 2023
Subjects: subject: Category Theory (math.CT)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 16D90, 18M20, 18M25, 18N10

description: We introduce group-theoretical fusion 2-categories, a strong categorification of the notion of a group-theoretical fusion 1-category. Physically speaking, such fusion 2-categories arise by gauging subgroups of a global symmetry. We show that group-theoretical fusion 2-categories are completely characterized by the property that the braided fusion 1-category of endomorphisms of the monoidal unit is Tannakian. Then, we describe the underlying finite semisimple 2-category of group-theoretical fusion 2-categories, and, more generally, of certain 2-categories of bimodules. We also partially describe the fusion rules of group-theoretical fusion 2-categories, and investigate the group gradings of such fusion 2-categories. Using our previous results, we classify fusion 2-categories admitting a fiber 2-functor. Next, we study fusion 2-categories with a Tambara-Yamagami defect, that is $\mathbb{Z}/2$-graded fusion 2-categories whose non-trivially graded factor is $\mathbf{2Vect}$. We classify these fusion 2-categories, and examine more closely the more restrictive notion of Tambara-Yamagami fusion 2-categories. Throughout, we give many examples to illustrate our various results.
description: Substantial revision in response to referees' feedback. In particular, the statement of proposition 3.4.4 was corrected
Optimizing Image Enhancement Method for 3D Visual Simulation of the Historic Streetscape in Kayutangan Street, Malang, Indonesia
Creators: name: Santosa, Herry
Publisher: name: figshare
Year: 2019
Subjects: subject: 120102 Architectural Heritage and Conservation
subject: FOS: Civil engineering
subject: 120304 Digital and Interaction Design
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120599 Urban and Regional Planning not elsewhere classified
subject: FOS: Social and economic geography
subject: 120307 Visual Communication Design (incl. Graphic Design)

description: Recently, the 3D simulation in Virtual Environment (VE) is useful performing a communication tool in public consensus to facilitate online public participation in planning and design development review of the historic urban streetscape. Computer simulations method allows the public to experience the sense of place through the navigation tools in the virtual environment and contributes the suggestion to the improvement as well as the alteration of the historic urban preservation through the public appraisal mechanisms. The duration of visualization stage of making a 3D modeling in virtual environments depends on the complexity and diversity of 3D models formation. Scenario visualization is closely related to the development of the level of detail geometry as well as the navigational aids system. Genuinely, the development of a detailed 3D geometry modeling is essential to fostering a sense of place to apprehending the historic urban space, especially for the historic streetscape in Kayutangan Street. Nevertheless, the detailed geometry will correspond to the use much polygon; then the 3D model data will be so incredibly heavy. Many studies have proven successful carried out a combination of mapping and panoramic photo capturing to simplify the 3D model geometry. Therefore, this study attempts to reinforce the important role of image enhancement in the picture capturing technique for visualization in historic buildings, particularly in the case study of Kayutangan Street, Malang, Indonesia.
Challenges for Inclusion in Software Engineering: The Case of the Emerging Papua New Guinean Society
Creators: name: Kula, Raula Gaikovina
name: Treude, Christoph
name: Hata, Hideaki
name: Baltes, Sebastian
name: Steinmacher, Igor
name: Gerosa, Marco Aurelio
name: Amini, Winifred Kula
Publisher: name: arXiv
Year: 2019
Subjects: subject: Software Engineering (cs.SE)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Software plays a central role in modern societies, with its high economic value and potential for advancing societal change. In this paper, we characterise challenges and opportunities for a country progressing towards entering the global software industry, focusing on Papua New Guinea (PNG). By hosting a Software Engineering workshop, we conducted a qualitative study by recording talks (n=3), employing a questionnaire (n=52), and administering an in-depth focus group session with local actors (n=5). Based on a thematic analysis, we identified challenges as barriers and opportunities for the PNG software engineering community. We also discuss the state of practices and how to make it inclusive for practitioners, researchers, and educators from both the local and global software engineering community.
description: IEEE Software
Specific Heat Study of the Field-Induced Magnetic Ordering in the Spin Gap System TlCuCl$_3$
Creators: name: Oosawa, A.
name: Katori, H. Aruga
name: Tanaka, H.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Specific heat measurements have been performed in the coupled dimer system TlCuCl$_3$, which has a singlet ground state with the excitation gap $Δ\simeq 7.5$K. The cusplike anomaly indicative of the 3D magnetic ordering was clearly observed in magnetic fields higher than the critical field $H_c$ corresponding to the gap $Δ$. The phase boundary determined by the present specific heat measurements coincides with that determined by previous magnetization measurements. The phase boundary can be described by the power law $[ H_{\rm c}(T)-H_{\rm g} ] \propto T^ϕ$ with $ϕ=2.1(1)$. This result supports the magnon Bose condensation picture for the field-induced magnetic ordering in TlCuCl$_3$ [Nikuni {\it et al}., Phys. Rev. Lett. {\bf 84} (2000) 5868].
description: 12 pages, 5 figures, 8 eps files
$η$-pairing in correlated fermion models with spin-orbit coupling
Creators: name: Li, Kai
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We generalize the $η$-pairing theory in Hubbard models to the ones with spin-orbit coupling (SOC) and obtain the conditions under which the $η$-pairing operator is an eigenoperator of the Hamiltonian. The $η$ pairing thus reveals an exact $SU(2)$ pseudospin symmetry in our spin-orbit coupled Hubbard model, even though the $SU(2)$ spin symmetry is explicitly broken by the SOC. In particular, these exact results can be applied to a variety of Hubbard models with SOC on either bipartite or non-bipartite lattices, whose noninteracting limit can be a Dirac semimetal, a Weyl semimetal, a nodal-line semimetal, and a Chern insulator. The $η$ pairing conditions also impose constraints on the band topology of these systems. We then construct and focus on an interacting Dirac-semimetal model, which exhibits an exact pseudospin symmetry with fine-tuned parameters. The stability regions for the exact $η$-pairing ground states (with momentum $\bmπ$ or $\bm{0}$) and the exact charge-density-wave ground states are established. Between these distinct symmetry-breaking phases, there exists an exactly solvable multicritical line. In the end, we discuss possible experimental realizations of our results.
description: Published version (PRB Editors Suggestion)
2.75D: Boosting learning by representing 3D Medical imaging to 2D features for small data
Creators: name: Wang, Xin
name: Su, Ruisheng
name: Xie, Weiyi
name: Wang, Wenjin
name: Xu, Yi
name: Mann, Ritse
name: Han, Jungong
name: Tan, Tao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In medical-data driven learning, 3D convolutional neural networks (CNNs) have started to show superior performance to 2D CNNs in numerous deep learning tasks, proving the added value of 3D spatial information in feature representation. However, the difficulty in collecting more training samples to converge, more computational resources and longer execution time make this approach less applied. Also, applying transfer learning on 3D CNN is challenging due to a lack of publicly available pre-trained 3D models. To tackle these issues, we proposed a novel 2D strategical representation of volumetric data, namely 2.75D. In this work, the spatial information of 3D images is captured in a single 2D view by a spiral-spinning technique. As a result, 2D CNN networks can also be used to learn volumetric information. Besides, we can fully leverage pre-trained 2D CNNs for downstream vision problems. We also explore a multi-view 2.75D strategy, 2.75D 3 channels (2.75Dx3), to boost the advantage of 2.75D. We evaluated the proposed methods on three public datasets with different modalities or organs (Lung CT, Breast MRI, and Prostate MRI), against their 2D, 2.5D, and 3D counterparts in classification tasks. Results show that the proposed methods significantly outperform other counterparts when all methods were trained from scratch on the lung dataset. Such performance gain is more pronounced with transfer learning or in the case of limited training data. Our methods also achieved comparable performance on other datasets. In addition, our methods achieved a substantial reduction in time consumption of training and inference compared with the 2.5D or 3D method.
Entanglement area law violation from field-curvature coupling
Creators: name: Belfiglio, Alessio
name: Luongo, Orlando
name: Mancini, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the entanglement entropy of a massive scalar field nonminimally coupled to spacetime curvature, assuming a static, spherically symmetric background. We discretize the field Hamiltonian by introducing a lattice of spherical shells and imposing a cutoff in the radial direction. We then study the ground state of the field and quantify deviations from area law due to nonminimal coupling, focusing in particular on Schwarzschild-de Sitter and Hayward spacetimes, also discussing de Sitter spacetime as a limiting case. We show that large positive coupling constants can significantly alter the entropy scaling with respect to the boundary area, even in case of small field mass. Our outcomes are interpreted in view of black hole entropy production and early universe scenarios.
description: 8 pages, 3 figures
Care-giving expectations and challenges among elders and their adult children in Southern Sri Lanka
Creators: name: Ranabahu, S
name: Watt, M.H
name: Perera, B
name: Rajapakse, H
name: Maselko, J
name: Østbye, T
Publisher: name: Cambridge University Press
Year: 2014

description: The elderly population in Sri Lanka is growing rapidly. Elders are traditionally cared for in the homes of their adult children, but the shifting socio-economic environment in Sri Lanka challenges this arrangement. This paper describes the dynamics of elder-care-giver relationships in Southern Sri Lanka. Data included four focus group discussions and five in-depth interviews with elderly, and ten in-depth interviews with adult children of the elderly. Discussion guide topics included care-giving arrangements, and roles/responsibilities of elders and care-givers. Using a grounded theory approach, a comprehensive analytic memo was developed and discussed to explore emerging themes on the care-giver dynamic. Both elders and care-givers felt that elders should be taken care of in the home by their children. They pointed to a sense of duty and role modelling of parental care-giving that is passed down through generations. Even as elders desired support from their children, they feared losing their independence, and saw financial autonomy as important for maintaining relationship balance. Care-giving challenges included: households where both the adult child and his/her spouse worked outside the home; households where elders had a disproportionate amount of household work; economically stressed households; and lack of direct communication between elders and care-givers regarding conflicts. Results point to strong values around caring for elderly in the home, but identify challenges to this arrangement in the future.
Purely Magnetic Spacetimes
Creators: name: Haddow, Barry
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Purely magnetic spacetimes, in which the Riemann tensor satisfies $R_{abcd}u^bu^d=0$ for some unit timelike vector $u^a$, are studied. The algebraic consequences for the Weyl and Ricci tensors are examined in detail and consideration given to the uniqueness of $u^a$. Some remarks concerning the nature of the congruence associated with $u^a$ are made.
description: 12 pages, standard latex. Submitted to Classical and Quantum Gravity.
Stochastic-Sign SGD for Federated Learning with Theoretical Guarantees
Creators: name: Jin, Richeng
name: Huang, Yufan
name: He, Xiaofan
name: Dai, Huaiyu
name: Wu, Tianfu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Federated learning (FL) has emerged as a prominent distributed learning paradigm. FL entails some pressing needs for developing novel parameter estimation approaches with theoretical guarantees of convergence, which are also communication efficient, differentially private and Byzantine resilient in the heterogeneous data distribution settings. Quantization-based SGD solvers have been widely adopted in FL and the recently proposed SIGNSGD with majority vote shows a promising direction. However, no existing methods enjoy all the aforementioned properties. In this paper, we propose an intuitively-simple yet theoretically-sound method based on SIGNSGD to bridge the gap. We present Stochastic-Sign SGD which utilizes novel stochastic-sign based gradient compressors enabling the aforementioned properties in a unified framework. We also present an error-feedback variant of the proposed Stochastic-Sign SGD which further improves the learning performance in FL. We test the proposed method with extensive experiments using deep neural networks on the MNIST dataset and the CIFAR-10 dataset. The experimental results corroborate the effectiveness of the proposed method.
Quantum phases and spectrum of collective modes in a spin-1 BEC with spin-orbital-angular-momentum coupling
Creators: name: Banger, Paramjeet
name: Rajat
name: Roy, Arko
name: Gautam, Sandeep
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Motivated by the recent experiments [Chen et al., Phys. Rev. Lett 121, 113204 (2018), Chen et al., Phys. Rev. Lett. 121, 250401 (2018)], we investigate the low-lying excitation spectrum of the ground-state phases of spin-orbital-angular-momentum-coupled (SOAM-coupled) spin-1 condensates.At vanishing detuning, a ferromagnetic SOAM-coupled spin-1 BEC can have two ground-state phases, namely coreless and polar-core vortex states, whereas an antiferromagnetic BEC supports only polar-core vortex solution. The angular momentum per particle, longitudinal magnetization, and excitation frequencies display discontinuities across the phase boundary between the coreless vortex and polar-core vortex phases. The low-lying excitation spectrum evaluated by solving the Bogoliubov-de-Gennes equations is marked by avoided crossings and hence the hybridization of the spin and density channels. The spectrum is further confirmed by the dynamical evolution of the ground state subjected to a perturbation suitable to excite a density or a spin mode and a variational analysis for the density-breathing mode.
Photo-acoustic dual-frequency comb spectroscopy
Creators: name: Wildi, Thibault
name: Voumard, Thibault
name: Brasch, Victor
name: Yilmaz, Gürkan
name: Herr, Tobias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Photo-acoustic spectroscopy (PAS) is one of the most sensitive non-destructive analysis techniques for gases, fluids and solids. It can operate background-free at any wavelength and is applicable to microscopic and even non-transparent samples. Extension of PAS to broadband wavelength coverage is a powerful tool, though challenging to implement without sacrifice of wavelength resolution and acquisition speed. Here, we show that the unmatched precision, speed and wavelength coverage of dual-frequency comb spectroscopy (DCS) can be combined with the advantages of photo-acoustic detection. Acoustic wave interferograms are generated in the sample by dual-comb absorption and detected by a microphone. As an example, weak gas absorption features are precisely and rapidly sampled; long-term coherent averaging further increases the sensitivity. This novel approach of photo-acoustic dual-frequency comb spectroscopy generates unprecedented opportunities for rapid and sensitive multi-species molecular analysis across all wavelengths of light.
title: Gut anfangen - gut unterwegs sein!: Gelingender Übergang in den Kindergarten
Creators: name: Fasseing Heim, Karin
name: Weiss, Barbara
Publisher: name: Publikationsserver der Pädagogischen Hochschule Thurgau
Year: 2021
Subjects: Schulübergang
Kindergarten

description: Jahresbericht PHTG 2020: Im Fokus: «Frühe Kindheit», p. 26
Massless bosons on domain walls: Jackiw-Rebbi-like mechanism for bosonic fields
Creators: name: Arai, Masato
name: Blaschke, Filip
name: Eto, Minoru
name: Sakai, Norisuke
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is important to obtain (nearly) massless localized modes for the low-energy four-dimensional effective field theory in the brane-world scenario. We propose a mechanism for bosonic zero modes using the field-dependent kinetic function in the classical field theory set-up. As a particularly simple case, we consider a domain wall in five dimensions, and show that massless states for scalar (0-form), vector (1-form), and tensor (2-form) fields appear on a domain wall, which may be called topological because of robustness of their existence (insensitive to continuous deformations of parameters). The spin of localized massless bosons is selected by the shape of the nonlinear kinetic function, analogously to the chirality selection of fermion by the well-known Jackiw-Rebbi mechanism. Several explicitly solvable examples are given. We consider not only (anti)BPS domain walls in non-compact extra dimension but also non-BPS domain walls in compact extra dimension.
description: 33 pages, 3 figures: The title and abstract are slightly changed. Comments are added. Tex style is changed (3rd ver.)
A polarised QCD condensate: nu p elastic scattering as a probe of U_A(1) dynamics
Creators: name: Bass, S. D.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: U_A(1) dynamics have the potential to induce a polarised condensate inside a nucleon. The formation of this condensate is related to the realisation of U_A(1) symmetry breaking by tunneling processes such as instantons. If it is present, the polarised condensate induces a term in g_1 which has support only at x=0. Tunneling processes then induce a net transfer of ``spin'' from finite x to x=0. The polarised condensate may be measured by comparing the flavour-singlet axial charges which are extracted from polarised deep inelastic and nu p elastic scattering experiments.
description: 13 pages LaTeX, Section 3 improved to include discussion of the 3 flavour quark instanton interaction; to appear in Mod. Phys. Lett. A
Religious social capital: Its measurement and utility in the study of the social determinants of health
Creators: name: Maselko, J
name: Hughes, C
name: Cheney, R
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: As a social determinant of health, religiosity remains not well understood, despite the prevalence of religious activity and prominence of religious institutions in most societies. This paper introduces a working measure of Religious Social Capital and presents preliminary associations with neighborhood social capital and urban stressors. Religious social capital is defined as the social resources available to individuals and groups through their social connections with a religious community. Domains covered include group membership, social integration, values/norms, bonding/bridging trust as well as social support. Cross-sectional data come from a convenience sample of 104 community dwelling adults residing in a single urban neighborhood in a large US city, who also provided information on neighborhood social capital, and experiences of urban stressors. Results suggest that religious social capital is a valid construct that can be reliably measured. All indicators of religious social capital were higher among those who frequently attended religious services, with the exception of bridging trust (trust of people from different religious groups). A weak, inverse, association was also observed between religious and neighborhood social capital levels. Levels of religious social capital were correlated with higher levels of reported urban stressors, while neighborhood social capital was correlated with lower urban stressor levels. A significant percent of the sample was unaffiliated with a religious tradition and these individuals were more likely to be male, young and more highly educated. Social capital is a promising construct to help elucidate the influence of religion on population health.
Spin-Peierls transition in an anisotropic two-dimensional XY model
Creators: name: Yuan, Qingshan
name: Zhang, Yumei
name: Chen, Hong
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The two-dimensional Jordan-Wigner transformation is used to investigate the zero temperature spin-Peierls transition for an anisotropic two-dimensional XY model in adiabatic limit. The phase diagram between the dimerized (D) state and uniform (U) state is shown in the parameter space of dimensionless interchain coupling $h$ $(=J_{\perp}/J)$ and spin-lattice coupling $η$. It is found that the spin-lattice coupling $η$ must exceed some critical value $η_c$ in order to reach the D phase for any finite $h$. The dependence of $η_c$ on $h$ is given by $-1/\ln h$ for $h\to 0$ and the transition between U and D phase is of first-order for at least $h>10^{-3}$.
description: 2 eps figures, considerable revisions were made
Dual-Comb Real-Time Molecular Fingerprint Imaging
Creators: name: Voumard, T.
name: Wildi, T.
name: Brasch, V.
name: Álvarez, R. Gutiérrez
name: Ogando, G. Vergara
name: Herr, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Hyperspectral imaging provides spatially resolved spectral information. Utilising dual frequency combs as active illumination sources, hyperspectral imaging with ultra-high spectral resolution can be implemented in a scan-free manner when a detector array is used for heterodyne detection. However, relying on low-noise detector arrays, this approach is currently limited to the near-infrared regime. Here, we show that dual-comb hyperspectral imaging can be performed with an uncooled near-to-mid-infrared detector by exploiting the detector array's high frame-rate and the combs' high-mutual coherence. The system simultaneously acquires hyperspectral data in 30~spectral channels across 16'384 pixel, from which molecule-specific gas concentration images can be derived. Artificial intelligence enables rapid data reduction and real-time image reconstruction. Owing to the detector array's sensitivity from 1~$μ$m to 5~$μ$m wavelength, this demonstration lays the foundation for versatile imaging of molecular fingerprint signatures across the infrared wavelength-regime in real-time.
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 180 (11 H 755), 83 folios, f. 0104
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2017
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 180 (11 H 755), 83 folios, f. 0104, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 180 (11 H 755), 83 folios, f. 0104, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Rediscovering valonia oak acorns - A redescoberta da bolota de carvalho-valónia
Creators: name: Papadopoulos, Andreas
Publisher: name: Zenodo
Year: 2017
Subjects: agroforestry systems
agro-silvopastoral systems
sheep cattle
tannin extraction
sistemas agroflorestais
sistemas agro-silvopastoris
gado ovino
extração de taninos

description: Tradução de leaflet dp projeto AGFORWARD- Na Grécia existem dois sistemas com carvalho-valónia: florestas antigas de baixa densidade (sistemas silvopastoris) e campos agrícolas com carvalho-valónia (sistemas agro-silvopastoris). Ambos têm valor socioeconómico, ecológico e cultural significativo. Fornecem serviços do ecossistema e sustentam usos tradicionais como o pastoreio, a recolha de bolotas e das suas cúpulas, a madeira (para construção naval, lenha e carvão), e a recolha de plantas aromáticas e medicinais. As florestas de carvalho-valónia são um dos habitats da Rede NATURA 2000 e incluem árvores monumentais em vários locais da Grécia. A recolha de cúpulas da bolota para curtimenta foi uma atividade económica tradicional muito importante até à década de 1970, contribuindo significativamente para as economias locais. A produção média anual de cúpulas de bolota chegava às 14000 toneladas. A maioria era exportada em bruto ou processada para a produção de pó, líquido ou extrato. Mais recentemente, tem havido manifestações de interesse em recuperar o valor produtivo destes sistemas nos contextos de recolha de bolota, agricultura biológica e produção animal, assim como por motivos de proteção ambiental. Também tem aumentado o interesse pela história desta prática tradicional.
CoNCRA: A Convolutional Neural Network Code Retrieval Approach
Creators: name: Martins, Marcelo de Rezende
name: Gerosa, Marco A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computation and Language (cs.CL)
subject: Software Engineering (cs.SE)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Software developers routinely search for code using general-purpose search engines. However, these search engines cannot find code semantically unless it has an accompanying description. We propose a technique for semantic code search: A Convolutional Neural Network approach to code retrieval (CoNCRA). Our technique aims to find the code snippet that most closely matches the developer's intent, expressed in natural language. We evaluated our approach's efficacy on a dataset composed of questions and code snippets collected from Stack Overflow. Our preliminary results showed that our technique, which prioritizes local interactions (words nearby), improved the state-of-the-art (SOTA) by 5% on average, retrieving the most relevant code snippets in the top 3 (three) positions by almost 80% of the time. Therefore, our technique is promising and can improve the efficacy of semantic code retrieval.
Hard Leptoproduction of Charged Vector Mesons
Creators: name: Mankiewicz, L.
name: Piller, G.
name: Weigl, T.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an analysis of twist-2, leading order QCD amplitudes for hard exclusive leptoproduction of charged vector mesons. These processes are determined by nonforward parton distribution functions which are nondiagonal in quark flavor. We derive relations between flavor diagonal and nondiagonal distribution functions based on isospin symmetry. Furthermore, we discuss general features of rho^+ and rho^- production cross sections, and present estimates based on a simple model for nonforward distribution functions.
description: 8 pages, Latex
Ab initio quantum many-body description of superconducting trends in the cuprates
Creators: name: Cui, Zhi-Hao
name: Yang, Junjie
name: Tölle, Johannes
name: Ye, Hong-Zhou
name: Yuan, Shunyue
name: Zhai, Huanchen
name: Park, Gunhee
name: Kim, Raehyun
name: Zhang, Xing
name: Lin, Lin
name: Berkelbach, Timothy C.
name: Chan, Garnet Kin-Lic
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Using a systematic ab initio quantum many-body approach that goes beyond low-energy models, we directly compute the superconducting pairing order and estimate the pairing gap of several doped cuprate materials and structures within a purely electronic picture. We find that we can correctly capture two well-known trends: the pressure effect, where the pairing order and gap increase with intra-layer pressure, and the layer effect, where the pairing order and gap vary with the number of copper-oxygen layers. From these calculations, we observe that the strength of superexchange and the covalency at optimal doping are the best descriptors for these trends. Our microscopic analysis further identifies that strong short-range spin fluctuations and multi-orbital charge fluctuations drive the development of the pairing order. Our work illustrates the possibility of a material-specific ab initio understanding of unconventional high-temperature superconducting materials.
description: 11 pages, 5 figures, with supplementary materials
Vector dark matter production at the end of inflation
Creators: name: Bastero-Gil, Mar
name: Santiago, Jose
name: Ubaldi, Lorenzo
name: Vega-Morales, Roberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been shown that the longitudinal mode of a massive vector boson can be produced by inflationary fluctuations and account for the dark matter content of the Universe. In this work we examine the possibility of instead producing the transverse mode via the coupling $ϕF \tilde F$ between the inflaton and the vector field strength. Such a coupling leads to a tachyonic instability and exponential production of one transverse polarization of the vector field, reaching its maximum near the end of inflation. At production the mass is negligible and the vectors add up coherently to form a dark electromagnetic field. As the Universe expands, the energy density of the dark electromagnetic field then redshifts like radiation until its wavelength stretches to beyond its Compton wavelength. After this point the vectors become non-relativistic and their energy density redshifts like matter. We show that these polarized transverse vectors can account for the observed dark matter relic density in the mass range $μ$eV to hundreds of GeV. We also find that the tachyonic production mechanism of the transverse mode can accommodate larger vector masses and lower Hubble scales of inflation compared to the production mechanism for the longitudinal mode via inflationary fluctuations.
description: 9 pages. References and comments added. Version to be published in JCAP
INVESTGATING THE EFFECT OF SENSITIZATION ON THE WEIGHT LOSS OF AUSTENITIC STAINLESS STEEL (TYPE 304) IN FRESH WATER
Creators: name: Komonibo, Ernest Bolouebi
name: Tudou, Perewarifagha
Publisher: name: ZAP journals
Year: 2024
Subjects: Sensitization, Weight loss, Austenitic Stainless Steel, MATLAB, Fresh Water.

description: The rate of weight loss of austenitic stainless steel immersed in fresh water after sensitization is the target focus of research. This trend of study is subjected to the investigation of the rate of weight loss of austenitic stainless steel (type 304), immersed in fresh water. Thus, the presentation of this research paper is one of such using MATLAB software for data analysis. The predicting variable (soaking time) significantly predicts the dependent variable with a P-Value of 1.0  which depicts that as the soaking time of the test samples in fresh water after the sensitization period increases, there is also a corresponding increase in the rate of weight loss of austenitic stainless steel (type 304) progressively. This result clearly directs a positive effect of the predicting variable (soaking time). Moreover,   = 0.9507 depicts that the model explains 95.07%, which is approximately 95.1% of the variance
Regularization by architecture: A deep prior approach for inverse problems
Creators: name: Dittmer, Sören
name: Kluth, Tobias
name: Maass, Peter
name: Baguer, Daniel Otero
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The present paper studies so-called deep image prior (DIP) techniques in the context of ill-posed inverse problems. DIP networks have been recently introduced for applications in image processing; also first experimental results for applying DIP to inverse problems have been reported. This paper aims at discussing different interpretations of DIP and to obtain analytic results for specific network designs and linear operators. The main contribution is to introduce the idea of viewing these approaches as the optimization of Tikhonov functionals rather than optimizing networks. Besides theoretical results, we present numerical verifications.
Competition between Hund-Rule Coupling and Kondo Effect
Creators: name: Kusunose, Hiroaki
name: Miyake, Kazumasa
Publisher: name: arXiv
Year: 1996
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate a problem about the competition between the hybridization and the Hund-rule coupling by applying the Wilson numerical renormalization-group method to the extended Kondo model where the impurity spin interacts via the Hund-rule coupling, with an extra spin which is isolated from the conduction electrons. It is shown that the Hund-rule coupling is an irrelevant perturbation against the strong coupling fixed point. However, the Hund-rule coupling decreases the characteristic energy $T_K$ drastically to the lower side and the irrelevant operator, which describes the low energy physics, takes a form of ferromagnetic exchange interaction between the extra spin and the Kondo resonance states because of the existence of the Hund-rule coupling.
description: 5 pages, LaTeX, 5 figures in one PS file, Submitted to J. Phys. Soc. Jpn