cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ultra-Orthodox female student teachers' motivation to learn and teach global education
Creators: name: Chamo, Nurit
name: Biberman-Shalev, Liat
Publisher: name: JSSE - Journal of Social Science Education
Year: 2024

description: Highlights:

– GE can be embraced by distinct populations with highly religious views.

– UOSTs' motivation toward GE is related to competitive-instrumental, social-justice, and personal factors.

– UOSTs prioritize local orientation toward GE, over global perspectives.

– UOSTs seem to assess the compatibility of GE with the traditions and norms of their own community.

– GE may be perceived as multidirectional and multidimensional rather than a top-down hierarchy

 

Purpose: This study aims to identify factors that motivate ultra-Orthodox female student-teachers to learn and teach from a global education perspective. Uncovering these factors may inform the discourse on integrating global orientations into education systems.

Design/methodology/approach: The study adopts the broad theoretical idea of global education while employing quantitative analysis.

Findings: Data obtained from 115 participants yielded three factors salient to learning GE: (1) competitive-instrumental; (2) social-justice related; and (3) personal. Motivation to teach GE was found to align with two main approaches, one locally oriented and the other globally oriented.

Research limitations/implications: As the study adopted a quantitative methodology, future research should also elucidate our findings using qualitative methods.

Practical implications: Stakeholders who wish to promote global education should consider that the participants’ overall disposition is congenial to global education; however, they interpret this notion in local and personal terms rather than as a global, proactive framework.
description: JSSE - Journal of Social Science Education, Bd. 23 Nr. 3 (2024)
Equivalence of operations with respect to discriminator clones
Creators: name: Lehtonen, Erkko
name: Szendrei, Agnes
Publisher: name: arXiv
Year: 2007
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 08A40, 06E30

description: For each clone C on a set A there is an associated equivalence relation, called C-equivalence, on the set of all operations on A, which relates two operations iff each one is a substitution instance of the other using operations from C. In this paper we prove that if C is a discriminator clone on a finite set, then there are only finitely many C-equivalence classes. Moreover, we show that the smallest discriminator clone is minimal with respect to this finiteness property. For discriminator clones of Boolean functions we explicitly describe the associated equivalence relations.
description: 17 pages
Asking Clarifying Questions Based on Negative Feedback in Conversational Search
Creators: name: Bi, Keping
name: Ai, Qingyao
name: Croft, W. Bruce
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Users often need to look through multiple search result pages or reformulate queries when they have complex information-seeking needs. Conversational search systems make it possible to improve user satisfaction by asking questions to clarify users' search intents. This, however, can take significant effort to answer a series of questions starting with "what/why/how". To quickly identify user intent and reduce effort during interactions, we propose an intent clarification task based on yes/no questions where the system needs to ask the correct question about intents within the fewest conversation turns. In this task, it is essential to use negative feedback about the previous questions in the conversation history. To this end, we propose a Maximum-Marginal-Relevance (MMR) based BERT model (MMR-BERT) to leverage negative feedback based on the MMR principle for the next clarifying question selection. Experiments on the Qulac dataset show that MMR-BERT outperforms state-of-the-art baselines significantly on the intent identification task and the selected questions also achieve significantly better performance in the associated document retrieval tasks.
description: In the proceedings of ICTIR'21
Normality Condition in Elasticity
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014
Subjects: Martensitic
Phase transitions
Quasi convexity
Plasticity
Normality
Elastic stability

description: © 2014, Springer Science+Business Media New York. Strong local minimizers with surfaces of gradient discontinuity appear in variational problems when the energy density function is not rank-one convex. In this paper we show that the stability of such surfaces is related to the stability outside the surface via a single jump relation that can be regarded as an interchange stability condition. Although this relation appears in the setting of equilibrium elasticity theory, it is remarkably similar to the well-known normality condition that plays a central role in classical plasticity theory.
ระบบการสอนอัจฉริยะกับการจัดการเรียนการสอนบนเว็บ
Creators: name: พินันทา  ฉัตรวัฒนา
Publisher: name: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ
Year: 2013
Subjects: ระบบการสอนอัจฉริยะ, การปรับเนื้อหา, การเรียนการสอนบนเว็บ

description: 1, 7, วารสารวิชาการและวิจัย มทร.พระนคร
Between compassion, anger, resignation, and rebellion: Vocational civics teachers and their struggle to fulfil the intentions of the civics subject
Creators: name: Ekström, Linda
Publisher: name: JSSE - Journal of Social Science Education
Year: 2024

description: Highlights:

– Civics teachers face challenges in offering male vocational students quality citizenship education.

– Civics teachers perceive this student group as vulnerable and in need of extra support.

– When unable to offer desired civics education, teachers feel angry and resigned.

– Civics teachers are willing to bend certain rules to support this particular student group.

– If this student group lacks better civics education, their future and Sweden's democracy are at risk.

 

Purpose: This paper examines how vocational civics teachers navigate structural constraints and their understanding of the challenges involved in preparing vocational students for democratic citizenship.

Design/methodology/approach: Using a discoursive psychological approach to analyse interview material, the study discusses identified discourses about critical policy analysis and street-level bureaucracy theory.

Findings: The findings reveal that the structure of vocational upper-secondary education significantly constrains civics teachers. Teachers oscillate between feelings of compassion, anger, resignation, and rebellion as they attempt to manage these challenges.

Research limitations/implications: The study highlights the need for further ethnographic research on teaching practices.

Practical implications: A significant number of Swedish upper-secondary students receive a limited civics education that inadequately prepares them for democratic citizenship.
description: JSSE - Journal of Social Science Education, Bd. 23 Nr. 3 (2024)
Letter from Kathleen Raine to Robin Skelton, [January 19, 1956]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine further discusses Skelton's plan to write a book about Blake.
Transport in networks with multiple sources and sinks
Creators: name: Carmi, Shai
name: Wu, Zhenhua
name: Havlin, Shlomo
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2008
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We investigate the electrical current and flow (number of parallel paths) between two sets of n sources and n sinks in complex networks. We derive analytical formulas for the average current and flow as a function of n. We show that for small n, increasing n improves the total transport in the network, while for large n bottlenecks begin to form. For the case of flow, this leads to an optimal n* above which the transport is less efficient. For current, the typical decrease in the length of the connecting paths for large n compensates for the effect of the bottlenecks. We also derive an expression for the average flow as a function of n under the common limitation that transport takes place between specific pairs of sources and sinks.
Pan-African shear zones in the Kaoko Belt (Namibia) and links across Southwestern Gondwana: Neoproterozoic evolution and Phanerozoic reactivation
Creators: name: Hueck, Mathias
name: Campos Neto, Mário C
name: Basei, Miguel A.S.
Publisher: name: Zenodo
Year: 2020
Subjects: shear zones
Brasiliano/Pan-African Orogenic Cycle
structural reactivation

description: RESUMO This research aims to contribute to the understanding of the tectonic and geodynamic evolution of southwestern Gondwana, from its amalgamation in the Neoproterozoic to its break-up in the Cretaceous. It is focused on the long-term tectonic activity of the network of shear zones of the Kaoko Belt in northwestern Namibia. The deformation history of these structures during the PanAfrican orogenic cycle will be reconstructed using a multi-method geochronological investigation including U-Th-Pb and K-Ar and Ar/Ar geochronology in multiple minerals. The geochronological research is grounded on detailed structural observations in the field and in microscale, aiming to compare the evolution history of these Shear Zones with the main regional events of the orogeny. The resulting evolution in southwest Africa will then be compared with that of equivalent tectonic features in southern South America, leading to the construction of a tectonic model of the amalgamation of southwestern Gondwana. In addition, this project aims to evaluate the impact of the reactivation of these structures on the regional exhumation during the Phanerozoic, particularly during the period of ca. 400 Myr between the Neoproterozoic orogeny and the Cretaceous continental break-up. In order to do so, different thermochronological methods in the temperature range of 300-100 °C will be combined, focusing in the reconstruction of regional thermal histories through a combination of (U-Th)/He and K-Ar geochronology in multiple mineral phases. By combining both approaches, the impact of structural reactivation during exhumation and surface processes will be evaluated. The resulting long-term tectonothermal history of the shear zones and their influence in the regional exhumation will be contextualized and compared with adjacent units in Africa and its South American counterparts, enabling the establishment of correlations across southwestern Gondwana. Preliminary results include field observations, petrological reconnaissance and the collection and preparation of a complex set of samples containing varied mineralogy for geochronological analyses from different structural domains of the Kaoko Belt, as well as a detailed dataset of (U-Th)/He analyses in zircon and apatite that is complemented by single-crystal mapping of zircon using Raman spectroscopy.
Notes on the Warburg Library (1934)
Creators: name: Bing, Gertrud; Seminario Mnemosyne
Publisher: name: La Rivista di Engramma
Year: 2020
Subjects: The Warburg Institute
The Warburg Library
Gertrud Bing

description: n this text, written in the aftermath of the arrival of the Warburg Library in London, Gertrud Bing, as Assistant Director, describes simply but fully the genesis, history, structure, mission, and meaning of the library conceived by Aby Warburg.
Improving the quality of life through a new approach aimed at controlling musculoskeletal disorders at work
Creators: name: Kamiel Vanwonterghem, Pongjan Yoopat
Publisher: name: Rangsit University
Year: 2011
Subjects: quality of life, accident analysis, musculoskeletal disorder (MSD), cumulative trauma disorder (CTD), system analysis

description: 2, 1, Rangsit Journal of Arts and Sciences
Coinduction in Uniform: Foundations for Corecursive Proof Search with Horn Clauses
Creators: name: Basold, Henning
name: Komendantskaya, Ekaterina
name: Li, Yue
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: 03B70

description: We establish proof-theoretic, constructive and coalgebraic foundations for proof search in coinductive Horn clause theories. Operational semantics of coinductive Horn clause resolution is cast in terms of coinductive uniform proofs; its constructive content is exposed via soundness relative to an intuitionistic first-order logic with recursion controlled by the later modality; and soundness of both proof systems is proven relative to a novel coalgebraic description of complete Herbrand models.
J/ψ production at low pT in Au+Au and Cu+Cu collisions at sNN =200 GeV with the STAR detector
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014
Subjects: nucl-ex

description: The J/ψ pT spectrum and nuclear modification factor (RAA) are reported for pT<5GeV/c and |y|<1 from 0% to 60% central Au+Au and Cu+Cu collisions at sNN=200GeV at STAR. A significant suppression of pT-integrated J/ψ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. RAA in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with pT. The data are compared to high-pT STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low pT are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration. © 2014 American Physical Society.
On the equations of warped disc dynamics
Creators: name: Dullemond, C. P.
name: Kimmig, C. N.
name: Zanazzi, J. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The 1-D evolution equations for warped discs come in two flavors: For very viscous discs the internal torque vector G is uniquely determined by the local conditions in the disc, and warps tend to damp out rapidly if they are not continuously driven. For very inviscid discs, on the other hand, G becomes a dynamic quantity, and a warp will propagate through the disc as a wave. The equations governing both regimes are usually treated separately. A unified set of equations was postulated recently by Martin et al. (2019), but not yet derived from the underlying physics. The standard method for deriving these equations is based on a perturbation series expansion, which is a powerful, but somewhat abstract technique. A more straightforward method is to employ the warped shearing box framework of Ogilvie and Latter (2013), which so far has not yet been used to derive the equations for the wavelike regime. The goal of this paper is to analyze the warped disc equations in both regimes using the warped shearing box framework, to derive a unified set of equations, valid for small warps, and to discuss how our results can be interpreted in terms of the affine tilted-slab approach of Ogilvie (2018).
description: Accepted for publication in MNRAS
PENULTIMATE GLACIAL-TO-INTERGLACIAL TRANSITION IN NORTHEASTERN SOUTH AMERICA AND THE ADJACENT OCEAN
Creators: name: Campos, Marília C
name: Sawakuchi, Andre O.
name: Chiessi, Cristiano M.
Publisher: name: Zenodo
Year: 2020
Subjects: Mudanças Climáticas
Célula de Revolvimento Meridional do Atlântico
Nordeste da América do Sul
Precipitação pretérita
Luminescência

description: RESUMO The Atlantic meridional overturning circulation (AMOC) plays a fundamental role in the oceanography and climate of the Atlantic realm. A potential shutdown of the AMOC would cause major changes in surface heat distribution in the Atlantic Ocean, strongly affecting tropical South American precipitation. Thus, a comprehensive understanding of the response of the Atlantic Ocean to changes in the AMOC intensity on different time scales is a key issue. Glacial-tointerglacial transitions are unique targets for past climate reconstructions not only because these periods were characterized by major changes in the strength of the AMOC, but also because of the marked changes in atmospheric carbon dioxide and sea level, with the associated impacts on continental hydroclimate. Here we propose to assess the impacts of the penultimate glacial-tointerglacial transition on northeastern (NE) South America and the adjacent western equatorial Atlantic, in unprecedented temporal resolution. Through this research proposal, we expect to: (i) characterize the changes in NE South American hydroclimate, as well as determine the changes in the western equatorial Atlantic upper water column structure and bottom water ventilation during the penultimate glacial-to-interglacial transition; and (ii) subsidize the debate of possible impacts that future changes in AMOC may have over the NE South America and the adjacent western equatorial Atlantic.
Trapping of Nonlinear Gravitational Waves by Two-Fluid Systems
Creators: name: Gogberashvili, Merab
name: Khomeriki, Ramaz
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the coupled two-fluid gravitating system (e.g. stiff matter and 'vacuum energy') could trap nonlinear gravitational waves (e.g. Einstein-Rosen waves). The gravitational wave amplitude varies harmonically in time transferring the energy coherently to the stiff matter wave, and then the process goes to the backward direction. This process mimics the behaviour of trapped electromagnetic waves in two-level media. We have defined the limits for the frequency of this energy transfer oscillations.
description: 8 pages, the version accepted by Mod. Phys. Lett. A
Growing carbon nanotubes vertically and horizontally to the substrate: a review
Creators: name: Marguerite Ellis, Binh Duong
Publisher: name: Rangsit University
Year: 2012
Subjects: carbon nanotubes, carbon nanofibers, double-walled carbon nanotubes, chemical vapor deposition of carbon nanotubes, Raman spectroscopy of carbon nanotubes

description: 2, 2, Rangsit Journal of Arts and Sciences
Ergodicity and Central Limit Theorem in Systems with Long-Range Interactions
Creators: name: Figueiredo, Annibal
name: Filho, Tarcisio Marciano da Rocha
name: Amato, Marco Antonio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this letter we discuss the validity of the ergodicity hypothesis in theories of violent relaxation in long-range interacting systems. We base our reasoning on the Hamiltonian Mean Field model and show that the life-time of quasi-stationary states resulting from the violent relaxation does not allow the system to reach a complete mixed state. We also discuss the applicability of a generalization of the central limit theorem. In this context, we show that no attractor exists in distribution space for the sum of velocities of a particle other than the Gaussian distribution. The long-range nature of the interaction leads in fact to a new instance of sluggish convergence to a Gaussian distribution.
description: 13 pages,6 figures
Plástico e microplástico no registro sedimentar atual na costa do sudeste brasileiro: proveniência, acumulação e cronologia
Creators: name: Ferreira, Anderson T.
name: Grohmann, C.H.
Publisher: name: Zenodo
Year: 2020
Subjects: Microplástico
Praias arenosas
Datação OSL
Proveniência
GNSS.

description: RESUMO - Nas zonas costeiras, a presença de resíduos plásticos decorre notadamente da má gestão da destinação desse material, seja por descarte direto em alto mar a partir de navios, do transbordo em portos ou indústrias adjacentes, bem como por serem trazidos por correntes marinhas e ventos, drenagem urbana ou por via fluvial. Devido às suas características de alto volume de produção, baixo custo e, principalmente, durabilidade, houve, desde a segunda metade do século passado até hoje, uma proliferação exponencial global responsável por 80% de todo o lixo acumulado nos oceanos. No entanto, mesmo considerando seu aparecimento recente em termos geológicos, o seu impacto no sistema terrestre tem promovido mudanças significativas de caráter antropogênico. Dessa forma, esse poluente, que também é um tecnofóssil, pode ser caracterizado como um importante componente estratigráfico do Antropoceno, bem como um indicador da perda dos serviços ecossistêmicos costeiros associados às mudanças ambientais globais. Nesse contexto, a pesquisa proposta busca uma avaliação inédita sobre a estimativa da taxa de deposição de sedimentos costeiros com microplástico ao longo do tempo em praias arenosas do litoral paulista, com a finalidade de identificar a partir de quando essa poluição ocorre, bem como apontar a sua provável proveniência ou origem, combinando técnicas de datação por Luminescência Opticamente Estimulada (optically stimulated luminescence, OSL) e levantamento geodésico apoiado pelo Sistema Global de Navegação por Satélite (GNSS).
Letter from Kathleen Raine to Robin Skelton, [March 13, 1956]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine discusses a review of a book by Skelton.
Atomic force microscopy (AFM) study of thick lamellar stacks of phospholipid bilayers
Creators: name: Schafer, Arne
name: Salditt, Tim
name: Rheinstadter, Maikel C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We report an Atomic Force Microscopy (AFM) study on thick multi lamellar stacks of approx. 10 mum thickness (about 1500 stacked membranes) of DMPC (1,2-dimyristoyl-sn-glycero-3-phoshatidylcholine) deposited on silicon wafers. These thick stacks could be stabilized for measurements under excess water or solution. From force curves we determine the compressional modulus B and the rupture force F_r of the bilayers in the gel (ripple), the fluid phase and in the range of critical swelling close to the main transition. AFM allows to measure the compressional modulus of stacked membrane systems and values for B compare well to values reported in the literature. We observe pronounced ripples on the top layer in the Pbeta' (ripple) phase and find an increasing ripple period Lambda_r when approaching the temperature of the main phase transition into the fluid Lalpha phase at about 24 C. Metastable ripples with 2Lambda_r are observed. Lambda_r also increases with increasing osmotic pressure, i.e., for different concentrations of polyethylene glycol (PEG).
Atomically precise interfaces from non-stoichiometric deposition
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014
Subjects: cond-mat.mtrl-sci

description: Complex oxide heterostructures display some of the most chemically abrupt, atomically precise interfaces, which is advantageous when constructing new interface phases with emergent properties by juxtaposing incompatible ground states. One might assume that atomically precise interfaces result from stoichiometric growth. Here we show that the most precise control is, however, obtained by using deliberate and specific non-stoichiometric growth conditions. For the precise growth of Sr n+1 Ti n O n+1 Ruddlesden-Popper (RP) phases, stoichiometric deposition leads to the loss of the first RP rock-salt double layer, but growing with a strontium-rich surface layer restores the bulk stoichiometry and ordering of the subsurface RP structure. Our results dramatically expand the materials that can be prepared in epitaxial heterostructures with precise interface control-from just the n=â ̂end members (perovskites) to the entire RP homologous series-enabling the exploration of novel quantum phenomena at a richer variety of oxide interfaces. © 2014 Macmillan Publishers Limited. All rights reserved.
Measurement of differential Z/gamma*+jet+X cross sections in proton anti-proton collisions at sqrt{s}=1.96 TeV
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present new measurements of differential cross sections for Z/gamma*(->mumu)+jet+X production in a 1 fb-1 data sample collected with the D0 detector in proton anti-proton collisions at sqrt{s}=1.96 TeV. Results include the first measurements differential in the Z/gamma* transverse momentum and rapidity, as well as new measurements differential in the leading jet transverse momentum and rapidity. Next-to-leading order perturbative QCD predictions are compared to the measurements, and reasonable agreement is observed, except in the region of low Z/gamma* transverse momentum. Predictions from two event generators based on matrix elements and parton showers, and one pure parton shower event generator are also compared to the measurements. These show significant overall normalization differences to the data and have varied success in describing the shape of the distributions.
description: Published in PLB. 11 pages, 5 figures
From manual to automated:  Enhancing publication tracking at the California Academy of Sciences (CAS) using the OpenAlex API
Creators: name: Abarca, Maricela
name: Russack, Joseph
Publisher: name: Zenodo
Year: 2024

description: This poster was presented at the joint conference of the Society for the Preservation of Natural History Collections (SPNHC) and Biodiversity Information Standards (TDWG) in Okinawa, Japan from September 2 - September 6, 2024. Abstract:

Although publications alone are not a comprehensive measure of the impact of biodiversity collections, they provide a valuable starting point for formulating impact metrics due to the accessible and standardized nature of publication metadata. The ubiquity of attributes such as DOIs, author affiliation, and the increasing adoption of author identifiers such as ORCIDS facilitate automated collection and analysis of publication data. One useful and emerging area of publication metadata is the assignment of UN Sustainable Development Goals, which offer a direct linkage between collections based research and solutions to climate change and sustainability initiatives.

At the California Academy of Sciences (CAS), the tracking of institutional publications was initially a manual process, conducted as needed using spreadsheets and documents. Recognizing the inefficiencies and potential for errors in this method, CAS aimed to develop an automated, reliable tracking system. The integration of publications from diverse sources posed a challenge, yet it was successfully addressed using the OpenAlex API, an open-source repository of publication data. Querying the API using affiliation metadata alone resulted in a significant improvement in publication tracking, and further refinement was achieved by incorporating ORCID-based searches and filters. In the calendar year 2022, while staff manually tracked 66 publications for reporting purposes, the API system successfully identified 198 publications authored by museum staff and affiliates during the same period. The API is also equipped to retrieve datasets published through platforms like Zenodo, Figshare, and other DataCite affiliates. It returned 22 CAS datasets, a metric that was previously untracked. 

Components of the publication tracking application include a MySQL database of publications and institutionally affiliated authors, as well as an automated email reporting system for tables and visualizations of publication data. Examples of these reports, including visualizations related to Sustainable Development assignments can be found at https://github.com/calacademy-research/publications_finder.
Analysis of the alternating direction method of multipliers for nonconvex problems
Creators: name: Harwood, Stuart M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C30, 49M27

description: This work investigates the theoretical performance of the alternating-direction method of multipliers (ADMM) as it applies to nonconvex optimization problems, and in particular, problems with nonconvex constraint sets. The alternating direction method of multipliers is an optimization method that has largely been analyzed for convex problems. The ultimate goal is to assess what kind of theoretical convergence properties the method has in the nonconvex case, and to this end, theoretical contributions are two-fold. First, this work analyzes the method with local solution of the ADMM subproblems, which contrasts with much analysis that requires global solutions of the subproblems. Such a consideration is important to practical implementations. Second, it is established that the method still satisfies a local convergence result. The work concludes with some more detailed discussion of how the analysis relates to previous work.
Theory of plasmonic edge states in chiral bilayer systems
Creators: name: Margetis, Dionisios
name: Stauber, Tobias
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analytically describe the plasmonic edge modes for an interface that involves the twisted bilayer graphene (TBG) or other similar Moire van der Waals heterostructure. For this purpose, we employ a spatially homogeneous, isotropic and frequency-dependent tensor conductivity which in principle accounts for electronic and electrostatic interlayer couplings. We predict that the edge mode dispersion relation explicitly depends on the chiral response even in the nonretarded limit, in contrast to the collective bulk plasmonic excitations in the TBG. We obtain a universal function for the dispersion of the optical edge plasmon in the paramagnetic regime. This implies a correspondence of the chiral-TBG optical plasmon to a magnetoplasmon of a single sheet, and chirality is interpreted as an effective magnetic field. The chirality also opens up the possibility of nearly undamped acoustic modes in the paramagnetic regime. Our results may guide future near-field nanoscopy for van der Waals heterostructures. In our analysis, we retain the long-range electrostatic interaction, and apply the Wiener-Hopf method to a system of integral equations for the scalar potentials of the two layers.
description: 20 pages, 4 figures
Suppression of Υ{hooked} production in d + Au and Au + Au collisions at sNN=200GeV
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014
Subjects: Upsilon suppression
Quarkonium in-medium
Relativistic heavy-ion collisions
STAR

description: We report measurements of Υ{hooked} meson production in p + p, d + Au, and Au + Au collisions using the STAR detector at RHIC. We compare the Υ{hooked} yield to the measured cross section in p + p collisions in order to quantify any modifications of the yield in cold nuclear matter using d + Au data and in hot nuclear matter using Au + Au data separated into three centrality classes. Our p + p measurement is based on three times the statistics of our previous result. We obtain a nuclear modification factor for Υ{hooked}(1S + 2S + 3S) in the rapidity range |y| < 1 in d + Au collisions of R dAu = 0.79 ± 0.24(stat.) ± 0.03(syst.) ± 0.10(p + psyst.). A comparison with models including shadowing and initial state parton energy loss indicates the presence of additional cold-nuclear matter suppression. Similarly, in the top 10% most-central Au + Au collisions, we measure a nuclear modification factor of R A A = 0.49 ± 0.1(stat.) ± 0.02(syst.) ± 0.06(p + p syst.), which is a larger suppression factor than that seen in cold nuclear matter. Our results are consistent with complete suppression of excited-state Υ{hooked} mesons in Au + Au collisions. The additional suppression in Au + Au is consistent with the level expected in model calculations that include the presence of a hot, deconfined Quark-Gluon Plasma. However, understanding the suppression seen in d + Au is still needed before any definitive statements about the nature of the suppression in Au + Au can be made. © 2014.
Organized Crime and Electoral Outcomes in Sicily
Creators: name: Buonanno, Paolo
name: Prarolo, Giovanni
name: Vanin, Paolo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/01 Economia politica

description: This paper investigates the relationship between mafia and politics by focusing on the market for votes. It exploits the fact that in the early 1990s the Italian party system collapsed, new parties emerged and mafia families had to look for new political allies. It presents evidence, based on disaggregated data from the Italian region of Sicily, that between 1994 and 2008 Silvio Berlusconi’s party, Forza Italia, obtained higher vote shares in municipalities plagued by mafia. The result is robust to the use of different measures of mafia presence, both contemporary and historical, to the inclusion of different sets of controls and to spatial analysis. Instrumenting mafia’s presence by determinants of its early diffusion in the late XIX century suggests that the correlation reflects a causal link, which would be coherent with mafia’s choice to back Forza Italia in exchange for favorable policies.
Evolution of Plasma Composition in an Eruptive Flux Rope
Creators: name: Baker, Deborah
name: Green, Lucie M.
name: Brooks, David H.
name: Démoulin, Pascal
name: van-Driel-Gesztelyi, Lidia
name: Mihailescu, Teodora
name: To, Andy S. H.
name: Long, David M.
name: Yardley, Stephanie L.
name: Janvier, Miho
name: Valori, Gherardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic flux ropes are bundles of twisted magnetic field enveloping a central axis. They harbor free magnetic energy and can be progenitors of coronal mass ejections (CMEs), but identifying flux ropes on the Sun can be challenging. One of the key coronal observables that has been shown to indicate the presence of a flux rope is a peculiar bright coronal structure called a sigmoid. In this work, we show Hinode EUV Imaging Spectrometer (EIS) observations of sigmoidal active region 10977. We analyze the coronal plasma composition in the active region and its evolution as the sigmoid (flux rope) forms and erupts as a CME. Plasma with photospheric composition was observed in coronal loops close to the main polarity inversion line during episodes of significant flux cancellation, suggestive of the injection of photospheric plasma into these loops driven by photospheric flux cancellation. Concurrently, the increasingly sheared core field contained plasma with coronal composition. As flux cancellation decreased and the sigmoid/flux rope formed, the plasma evolved to an intermediate composition in between photospheric and typical active region coronal compositions. Finally, the flux rope contained predominantly photospheric plasma during and after a failed eruption preceding the CME. The Hence, plasma composition observations of active region 10977 strongly support models of flux rope formation by photospheric flux cancellation forcing magnetic reconnection first at the photospheric level then at the coronal level.
Clostridium difficile toxins facilitate bacterial colonization by modulating the fence and gate function of colonic epithelium
Creators: name: Kasendra, Magdalena Julia <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: BIO/11 Biologia molecolare

description: The contribution of Clostridium difficile toxin A and B (TcdA and TcdB) to cellular intoxication has been extensively studied, but their impact on bacterial colonization remains unclear. By setting-up two- and three-dimensional in vitro models of polarized gut epithelium, we investigated how C. difficile infection is affected by host cell polarity and whether TcdA and TcdB contribute to such events. Indeed, we observed that C. difficile adhesion and penetration of the epithelial barrier is substantially enhanced in poorly polarized or EGTA-treated cells, indicating that bacteria bind preferentially to the basolateral cell surface. In this context, we demonstrated that sub-lethal concentrations of C. difficile TcdA are able to alter cell polarity by causing redistribution of plasma membrane components between distinct surface domains. Taken together, the data suggest that toxin-mediated modulation of host cell organization may account for the capacity of this opportunistic pathogen to gain access to basolateral receptors leading to a successful colonization of the colonic mucosa.
Beam-energy dependence of charge separation along the magnetic field in Au+Au collisions at RHIC
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014
Subjects: STAR Collaboration

description: Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies. © 2014 American Physical Society.
BEXIS2 - Funktionale Übersicht und Demo
Creators: name: Schöne, David
name: Thiel, Sven
Publisher: name: Zenodo
Year: 2024
Subjects: Datenmanagement
Forschungsdatenmanagement
FDM
Open Source
BEXIS2
NFDI4Biodiversity
Demo
HeFDI Data Talk

description: In diesem Vortrag wird das Open Source Daten-Management-System "BEXIS2" vorgestellt. Ziel ist es, einen Überblick über die Funktionen von BEXIS2 aus Nutzer- und Datenmanager- Sicht zu erhalten und in einer Demo vorzuführen, wie einfach es ist Daten einzupflegen, zu verteilen, zu exportieren und dabei ein Lächeln auf dem Gesicht zu behalten.
description: Die HeFDI Data Talks sind eine zweiwöchentliche offene Informations- und Diskussionsveranstaltung rund um das Thema Datenmanagement im Wissenschaftskontext, in deren Rahmen sich einschlägige NFDI-Konsortien sowie Forschungsdatenmanagements-Dienste vorstellen. Die Reihe diskutiert aktuelle Themen und stellt zahlreiche – auch lokale und regionale – Tools und Services vor.
description: Angeboten werden die HeFDI Data Talks von der Landesinitiative HeFDI - Hessische Forschungsdateninfrastrukturen, welche vom Hessisches Ministerium für Wissenschaft und Forschung, Kunst und Kultur (HMWK) finanziert wird.
Structural and electronic origin of the magnetic structures in hexagonal LuFeO3
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014
Subjects: cond-mat.mtrl-sci
cond-mat.str-el

description: Using combined theoretical and experimental approaches, we studied the structural and electronic origin of the magnetic structure in hexagonal LuFeO3. Besides showing the strong exchange coupling that is consistent with the high magnetic ordering temperature, the previously observed spin reorientation transition is explained by the theoretically calculated magnetic phase diagram. The structural origin of this spin reorientation that is responsible for the appearance of spontaneous magnetization, is identified by theory and verified by x-ray diffraction and absorption experiments. © 2014 American Physical Society.
Charge Transfer in Ternary Solar Cells Employing Two Fullerene Derivatives: Where do Electrons Go?
Creators: name: Sperlich, Andreas
name: Auth, Michael
name: Dyakonov, Vladimir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Earlier reports demonstrated that ternary organic solar cells (OSC) made of donor polymers (D) blended with different mixtures of fullerene acceptors (A:A) performed very similarly. This finding is surprising, as the corresponding fullerene LUMO levels are slightly different, which might result in decisive differences in the charge transfer step. We investigate ternary OSC (D:A:A) made of the donor polymer P3HT with stoichiometric mixtures of different fullerene derivatives, PC60BM:PC70BM and PC70BM:IC60BA, respectively. Using quantitative electron paramagnetic resonance (EPR) we can distinguish between positive and negative polarons, localized on the specific molecules. We found that after the initial charge transfer step, the electrons are re-distributed over two nearby acceptors in agreement with their stoichiometry and their relative LUMO energy difference. Remarkably, the measured delta LUMO differences in fullerene mixtures are reduced by an order of magnitude compared to that of the pristine materials, i.e., below 1 meV for PC60BM:PC70BM and (20 +/- 5) meV for PC70BM:IC60BA. Furthermore, we found that this reduced delta LUMO explains the shift in open circuit voltage for D:A:A organic solar cells. We attribute these findings to hybridization, leading to an effective fullerene LUMO. Consequently, multi-acceptor blends are indeed a viable option for photodetectors and solar cells, as they combine the best electron acceptor and light absorbing properties.
description: 13 pages, 6 figures
Scalar Emission in the Bulk in a Rotating Black Hole Background
Creators: name: Creek, S.
name: Efthimiou, O.
name: Kanti, P.
name: Tamvakis, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the emission of scalars into the bulk from a higher-dimensional rotating black hole. We obtain an analytic solution to the field equation by employing matching techniques on expressions valid in the near-horizon and far-field regimes. Both analytic and numerical results for the absorption probability, in the low-energy and low-angular momentum limit, are derived and found to be in excellent agreement. We also compute the energy emission rate, and show that the brane-to-bulk ratio of the energy emission rates for scalar fields remains always larger than unity in the aforementioned regime.
description: 14 pages, Latex file, 5 figures, references added