cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Open Peer Review Module for Open Access Repositories
Creators: name: Perakakis, Pandelis
Publisher: name: Digital.CSIC
Year: 2016
Subjects: Open Peer Review Module for Repositories
OPRM project
Open Access
Peer review
Open Access repositories
Institutional repositories
Overlay services for repositories

description: Workshop held on the 27th of Abril at CSIC Royal Botanic Garden in Madrid (RJB-CSIC).
Problems with Global Education: Conceptual Contradictions
Creators: name: Young, J. Melanie
Publisher: name: Alberta Journal of Educational Research
Year: 2010

description: Global education is concerned with social justice and student empowerment. However, an understanding of the word global as merely international and/or intercultural may fail to challenge existing mechanistic and compartmentalized views of knowledge and curriculum. Such a global education limits students’ agency and reproduces the very systems it intends to challenge. A holistic understanding of the word global allows for a relational or systems view of the world, mindful of the complex, multiple, and dynamic nature of living systems. It situates the students and their studies in the world and thus offers greater possibilities for action.
description: Alberta Journal of Educational Research, Vol. 56 No. 2 (2010): Summer 2010
The intergalactic medium over the last 10 billion years I: Lyman alpha absorption and physical conditions
Creators: name: Davé, Romeel
name: Oppenheimer, Benjamin D.
name: Katz, Neal
name: Kollmeier, Juna A.
name: Weinberg, David H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The intergalactic medium (IGM) is the dominant reservoir of baryons at all cosmic epochs. We investigate the evolution of the IGM from z=2-0 in 48 Mpc/h, 110-million particle cosmological hydrodynamic simulations using three prescriptions for galactic outflows. We focus on the evolution of IGM physical properties, and how such properties are traced by Ly-alpha absorption as detectable using HST/COS. Our results broadly confirm the canonical picture that most Ly-alpha absorbers arise from highly ionized gas tracing filamentary large-scale structure. Growth of structure causes gas to move from the diffuse photoionized IGM into other cosmic phases, namely stars, cold and hot gas within galaxy halos, and the unbound and shock-heated warm-hot intergalactic medium (WHIM). By today, baryons are roughly equally divided between bound phases (35%), the diffuse IGM (41%), and the WHIM (24%). Here we (re)define the WHIM as gas with overdensities lower than that in halos and temperatures >10^5 K, in order to more closely align it with "missing baryons". When we tune our photoionizing background to match the observed evolution of the Ly-alpha mean flux decrement, we obtain a line count evolution that broadly agrees with available data. We predict a column density distribution slope of -1.70 for our favored momentum-driven wind model, in agreement with recent observations, and it becomes shallower with redshift. With improved statistics, the frequency of strong lines can be a valuable diagnostic of outflows, and our favored wind model matches existing data best among our models. The relationship between column density and physical density is fairly tight from z=2-0, and evolves as rho N_HI^0.74 10^(-0.37z) for diffuse absorbers. Linewidths only loosely reflect the temperature of the absorbing gas, which will hamper attempts to quantify the WHIM using broad Ly-alpha absorbers. [Abridged]
description: 22 pages, MNRAS, accepted
Essential Inclusive Education-Related Outcomes for Alberta Preservice Teachers
Creators: name: Loreman, Tim
Publisher: name: Alberta Journal of Educational Research
Year: 2010

description: This article examines the knowledge, skills, and attributes (KSAs) that Alberta preservice teachers need to develop over the course of their teacher preparation programs in order to work effectively in inclusive classrooms. Inclusive classrooms are those where all students regardless of diversity learn in the same contexts. These KSAs are presented as program outcomes and are identified in relation to their prominence in the literature on inclusion and their alignment with Alberta education policy and teacher interim certification requirements. They were then reviewed by a focus group of representatives from teacher preparation institutions in Alberta and Canada. The author suggests that teacher preparation institutions in Alberta must ensure that these outcomes are addressed at multiple points throughout their teacher preparation programs.
description: Alberta Journal of Educational Research, Vol. 56 No. 2 (2010): Summer 2010
The role of inter-well tunneling strength on coherence dynamics of two-species Bose-Einstein condensates
Creators: name: Lu, Li-Hua
name: Xu, Xiao-Qiang
name: Li, You-Quan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Coherence dynamics of two-species Bose-Einstein condensates in double wells is investigated in mean field approximation. We show that the system can exhibit decoherence phenomena even without the condensate-environment coupling and the variation tendency of the degree of coherence depends on not only the parameters of the system but also the initial states. We also investigate the time evolution of the degree of coherence for a Rosen-Zener form of tunneling strength, and propose a method to get a condensate system with certain degree of coherence through a time-dependent tunneling strength.
The Open Peer Review Module... some technical details
Creators: name: Lorenzo, Emilio
Publisher: name: Digital.CSIC
Year: 2016
Subjects: Open Peer Review Module for Repositories
OPRM project
Open Access
Peer review
Open Access repositories
Institutional repositories
Overlay services for repositories

description: Workshop held on the 27th of Abril at CSIC Royal Botanic Garden in Madrid (RJB-CSIC).
Weeding Out or Developing Capacity? Challenges for Aboriginal Teacher Education
Creators: name: Kitchen, Julian
name: Cherubini, Lorenzo
name: Trudeau, Lyn
name: Hodson, Janie
Publisher: name: Alberta Journal of Educational Research
Year: 2010

description: Teacher education is critical to the development of Aboriginal teachers able to ensure success among Aboriginal learners and contribute to the preservation and renewal of Aboriginal communities. In a series of talking circles, six beginning Aboriginal teachers discussed their teacher preparation and their first years of practice. They expressed concerns about teacher training programs that they regarded as assimilationist and a need for teacher education that helps Aboriginal teachers examine their individual and cultural identities in order to become effective teachers. Tribal Critical Race Theory (TribalCrit) is used as a discursive framework for critiquing existing approaches and offering culturally responsive alternatives.
description: Alberta Journal of Educational Research, Vol. 56 No. 2 (2010): Summer 2010
An associative star-three-product and applications to M two/M five-brane theory
Creators: name: Gustavsson, Andreas
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The star-product between functions enable us to take the large $N$ limit in a controlled way. At finite $N$ it serves as a substitute for matrix multiplications. Non-abelian gauge theory can be deconstructed from lower dimensional gauge theories using star-products. In this paper we extend the star-product to a star-three-product. We then apply the star-three-product to realize hermitian three-algebra of ABJM theory. We define a fuzzy three-torus. We deconstruct Abelian M five-brane in a constant background three-form potential on a fuzzy three-torus. We deconstruct non-Abelian extensions which might be related with multiple M five branes. We also mention the fuzzy three-sphere case.
description: 53 pages
title: ÐÐ±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° Ð½Ð° Ð±Ð°Ð·Ðµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¹ Ð¼ÐµÑÐ°-Ð²ÑÐµÐ»ÐµÐ½Ð½Ð¾Ð¹, Ð°Ð²Ð°ÑÐ°ÑÐ¾Ð² ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¸ Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»ÐµÐ¹
title: Educational system based on meta-universe
Creators: name: ÐÐ¾Ð³Ð¾Ð¼Ð¾Ð»Ð¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
name: ÐÐµÐ²ÐµÐ¶Ð¸Ð½, ÐÐ¸ÐºÑÐ¾Ñ
name: "Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð² Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð¾-Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (27; 2023; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ°Ñ ÑÐ¸Ð½Ð³ÑÐ»ÑÑÐ½Ð¾ÑÑÑ
Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÐ¹ Ð¿ÑÐ¾ÑÐµÑÑ
Ð¼ÐµÑÐ°-Ð²ÑÐµÐ»ÐµÐ½Ð½Ð°Ñ
Ð°Ð²Ð°ÑÐ°ÑÑ
Ð²Ð¸ÑÑÑÐ°Ð»ÑÐ½Ð°Ñ ÑÐµÐ°Ð»ÑÐ½Ð¾ÑÑÑ
technological singularity
educational process
metauniverse
avatars
virtual reality

description: Ð¢ÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ°Ñ ÑÐ¸Ð½Ð³ÑÐ»ÑÑÐ½Ð¾ÑÑÑ Ð¸Ð·Ð¼ÐµÐ½ÑÐµÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ. Ð Ð½ÐµÐ´Ð°Ð»ÑÐºÐ¾Ð¼ Ð±ÑÐ´ÑÑÐµÐ¼ Ð¾Ð½Ð° Ð¸Ð·Ð¼ÐµÐ½Ð¸ÑÑÑ ÑÐµÐ²Ð¾Ð»ÑÑÐ¸Ð¾Ð½Ð½ÑÐ¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼ Ð¸ ÑÐ¶Ðµ ÑÐµÐ¹ÑÐ°Ñ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ ÑÐ¾ÑÑ Ð±Ñ ÐºÐ¾Ð½ÑÑÑÑ Ð½Ð¾Ð²Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ, Ð¾ÑÐ²ÐµÑÐ°ÑÑÐµÐ¹ Ð·Ð°Ð¿ÑÐ¾ÑÐ°Ð¼ Ð±ÑÑÑÑÐ¾ Ð¼ÐµÐ½ÑÑÑÐµÐ³Ð¾ÑÑ Ð¼Ð¸ÑÐ°. Ð¡Ð¸Ð½Ð³ÑÐ»ÑÑÐ½Ð¾ÑÑÑ Ð¾Ð±ÑÑÐ»Ð°Ð²Ð»Ð¸Ð²Ð°ÐµÑ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð½ÐµÐ¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð² Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐ¸Ñ Ð¿ÑÑÑÑ ÑÐ²Ð¾Ð»ÑÑÐ¸Ð¸ ÑÐµÐ»Ð¾Ð²ÐµÑÐµÑÑÐ²Ð°. Ð¢ÐµÐ¼ Ð½Ðµ Ð¼ÐµÐ½ÐµÐµ, Ð¾Ð¿Ð¸ÑÐ°ÑÑÑ Ð½Ð° Ð¿ÐµÑÐµÐ´Ð¾Ð²ÑÐµ ÐºÐ¾Ð½ÑÐµÐ¿ÑÑÐ°Ð»ÑÐ½ÑÐµ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÐµ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ (EdTech, STEM Ð¸ Ð´Ñ.) Ð¸ Ð¿ÑÐ¾Ð³Ð½Ð¾Ð·Ð¸ÑÑÑ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ ÑÐ°ÐºÐ¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹ ÐºÐ°Ðº Ð¼ÐµÑÐ°-Ð²ÑÐµÐ»ÐµÐ½Ð½Ð°Ñ, Ð½ÐµÐ¹ÑÐ¾-ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¸ (Ð°Ð²Ð°ÑÐ°ÑÑ), Ð²Ð¸ÑÑÑÐ°Ð»ÑÐ½Ð°Ñ Ð¸ Ð´Ð¾Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½Ð°Ñ ÑÐµÐ°Ð»ÑÐ½Ð¾ÑÑÑ, Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑ Ð¼Ð¾Ð¶Ð½Ð¾ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð¸ÑÑ Ð±ÑÐ´ÑÑÐµÐµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ.
description: The technological singularity is changing the education system. In the near future, it will change in a revolutionary way, and now it is necessary to determine at least the contours of a new education system that meets the needs of a rapidly changing world. The singularity causes a state of uncertainty in the future paths of human evolution. However, relying on advanced conceptual educational methods (EdTech, STEM, etc.), and predicting the development of such technologies as the meta-universe, neuro-employees (avatars), virtual and augmented reality, artificial intelligence, we can imagine the future of the education system.
Multi-fidelity physics constrained neural networks for dynamical systems
Creators: name: Zhou, Hao
name: Cheng, Sibo
name: Arcucci, Rossella
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Physics-constrained neural networks are commonly employed to enhance prediction robustness compared to purely data-driven models, achieved through the inclusion of physical constraint losses during the model training process. However, one of the major challenges of physics-constrained neural networks consists of the training complexity especially for high-dimensional systems. In fact, conventional physics-constrained models rely on singular-fidelity data necessitating the assessment of physical constraints within high-dimensional fields, which introduces computational difficulties. Furthermore, due to the fixed input size of the neural networks, employing multi-fidelity training data can also be cumbersome. In this paper, we propose the Multi-Scale Physics-Constrained Neural Network (MSPCNN), which offers a novel methodology for incorporating data with different levels of fidelity into a unified latent space through a customised multi-fidelity autoencoder. Additionally, multiple decoders are concurrently trained to map latent representations of inputs into various fidelity physical spaces. As a result, during the training of predictive models, physical constraints can be evaluated within low-fidelity spaces, yielding a trade-off between training efficiency and accuracy. In addition, unlike conventional methods, MSPCNN also manages to employ multi-fidelity data to train the predictive model. We assess the performance of MSPCNN in two fluid dynamics problems, namely a two-dimensional Burgers' system and a shallow water system. Numerical results clearly demonstrate the enhancement of prediction accuracy and noise robustness when introducing physical constraints in low-fidelity fields. On the other hand, as expected, the training complexity can be significantly reduced by computing physical constraint loss in the low-fidelity field rather than the high-fidelity one.
Numerical dependencies of the galactic dynamo in isolated galaxies with SPH
Creators: name: Wissing, Robert
name: Shen, Sijing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the numerical dependencies that act on the galactic dynamo is a crucial step in determining what resolution and what conditions are required to properly capture the magnetic fields observed in galaxies. Here, we present an extensive study on the numerical dependencies of the galactic dynamo in isolated spiral galaxies using smoothed particle magnetohydrodynamics (SPMHD). We performed 53 isolated spiral galaxy simulations with different initial setups, feedback, resolution, Jeans floor and dissipation parameters. The results show a strong mean-field dynamo occurring in the spiral-arm region of the disk, likely produced by the classical alpha-omega dynamo or the recently described gravitational instability dynamo. The inclusion of feedback is seen to work in both a destructive and positive fashion for the amplification process. Destructive interference for the amplification occurs due to break down of filament structure in the disk, increase of turbulent diffusion and the ejection of magnetic flux from the central plane to the circumgalactic medium. The positive effect of feedback is the increase in vertical motions and the turbulent fountain flows that develop, showing a high dependence on the small-scale vertical structure and the numerical dissipation within the galaxy. Galaxies with an effective dynamo saturate their magnetic energy density at levels between 10-30% of the thermal energy density. The density averaged numerical Prandtl number is found to be below unity throughout the galaxy for all our simulations, with an increasing value with radius. Assuming a turbulent injection length of 1 kpc, the numerical magnetic Reynolds number are within the range of $Re_{mag}=10-400$, indicating that some regions are below the levels required for the small-scale dynamo ($Re_{mag,crit}=30-2700$) to be active.
Quantum-like model of processing of information in the brain based on classical electromagnetic field
Creators: name: Khrennikov, Andrei
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We propose a model of quantum-like (QL) processing of mental information. This model is based on quantum information theory. However, in contrast to models of "quantum physical brain" reducing mental activity (at least at the highest level) to quantum physical phenomena in the brain, our model matches well with the basic neuronal paradigm of the cognitive science. QL information processing is based (surprisingly) on classical electromagnetic signals induced by joint activity of neurons. This novel approach to quantum information is based on representation of quantum mechanics as a version of classical signal theory which was recently elaborated by the author. The brain uses the QL representation (QLR) for working with abstract concepts; concrete images are described by classical information theory. Two processes, classical and QL, are performed parallely. Moreover, information is actively transmitted from one representation to another. A QL concept given in our model by a density operator can generate a variety of concrete images given by temporal realizations of the corresponding (Gaussian) random signal. This signal has the covariance operator coinciding with the density operator encoding the abstract concept under consideration. The presence of various temporal scales in the brain plays the crucial role in creation of QLR in the brain.
Conclusiones de la Jornada de OPIS y el acceso abierto
Creators: name: Unidad De Recursos De Información Científica Para La Investigación (URICI)
Publisher: name: Digital.CSIC
Year: 2011
Subjects: Repositorios institucionales
Organismos públicos de investigación
Institutional Repositories
Public Research Organizations
España
Spain
CIEMAT
CSIC
IAC
IEO
IGME
INIA
ISCIII
FECYT
Ministerio de Ciencia e Innovación
Spain's Ministry of Science and Innovation
Nueva Ley de la Ciencia
Spain's Science Law
Acceso abierto
Open Access

description: Presentaciones disponibles en:
description: Bernal, Isabel. Introducción a Digital.CSIC, Estado del arte de repositorios de instituciones públicas de investigación. http://hdl.handle.net/10261/42208
description: Gómez, Monique. El IAC y el Acceso Abierto. http://hdl.handle.net/10261/170322
description: González Copeiro, Cristina. El acceso abierto y los repositorios científicos en España: Proyectos RECOLECTA, OPenAIRE y MedOANet. http://hdl.handle.net/10261/170324
description: Primo Peña, Elena. El Instituto de Salud Carlos III y el Acceso Abierto. Iniciativas y resultados. http://hdl.handle.net/10261/170317
description: [ES] Informe y conclusiones de la reunión OPIS y acceso abierto que se organizó el 24 de octubre 2011 en el CSIC con ocasión de la Semana Internacional del Acceso Abierto. La jornada reunió a personal técnico y bibliotecario de los organismos públicos de investigación de España y a representantes del Ministerio de Ciencia e Innovación y de la FECYT. Se comentaron retos comunes en el desarrollo de repositorios institucionales y el impacto del artículo 37 de acceso abierto de la nueva Ley de la Ciencia, aprobada en junio y en vigor en diciembre de 2011.
description: [EN] Report and main conclusions of the Seminar Public research organizations and open access that was held at CSIC on October 24, 2011, on the occasion of the Open Access Week 2011. The seminar gathered technical staff and librarians from Spain's public research organizations as well as representatives from Spain's Ministry of Science and Innovation and its Foundation for Science and Technology (FECYT). Main discussions addressed work done by each research organization in the bulding of institutional repositories, common challenges and the implications of the Open Access article in new Spain's Law of Science, approved in June 2011 and coming into force in December 2011.
Identifying a native p-hydroxybenzoyl-CoA monolignol transferase gene in poplar
Creators: name: MacKay, Heather A.
Publisher: name: University of British Columbia
Year: 2019

description: Woody biomass utilisation for the production of pulp and paper, specialty cellulose and chemicals, and cellulosic biofuels requires significant investment of chemicals and energy. Lignin, a polyphenolic constituent of the secondary cell walls of vascular plants, is a significant impediment for wood processing. As such, delignification is essential for biomass utilisation, and typically relies on the addition of acid or alkali to promote fibre separation, and the recovery of the chemical fractions of the biomass. Increasing the degree of acylation (the process of adding an acyl group, or RCO– group, to a compound) of lignin and/or integrating unique bonds into the lignin polymer backbone can improve the processability of an otherwise chemically stable polymer. In Salix, Populus, and Palmae species, p-hydroxybenzoic acid (pHBA) acylates the monolignols. When these monolignol p-hydroxybenzoate conjugates are incorporated into lignin, pendant ester groups decorate the lignin polymer, and can be easily ‘clipped off’ by mild chemical treatment. Consequently, pHBA is of particular interest in the pursuit of creating designer lignins. p-HYDROXYBENZOYL-COA MONOLIGNOL TRANSFERASE (pHBMT) is the putative enzyme thought to be responsible for decorating monolignols with pHBA. The gene encoding pHBMT, however, remains elusive. In this study a putative pHBMT gene was identified through in vitro enzyme activity assays, and subsequently overexpressed in both A. thaliana and hybrid poplar under the control of the Cauliflower mosaic virus 35S promoter (CaMV35SP) and the Arabidopsis thaliana CINNAMATE-4-HYDROXYLASE promoter (AtC4HP). Although, overexpression of this putative pHBMT did not result in a significant increase in pHBA in the cell walls of A. thaliana, increases were observed in poplar. This result furthers our understandings of the mechanisms driving acylated monolignol biosynthesis, and identified a promising avenue in the pursuit and development of novel transgenic plant varieties with unique lignin properties and commercial applications.
VapoRock: Thermodynamics of vaporized silicate melts for modeling volcanic outgassing and magma ocean atmospheres
Creators: name: Wolf, Aaron S.
name: Jäggi, Noah
name: Sossi, Paolo A.
name: Bower, Dan J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Silicate vapors play a key role in planetary evolution, especially dominating early stages of rocky planet formation through outgassed magma ocean atmospheres. Our open-source thermodynamic modeling software "VapoRock" combines the MELTS liquid model (Ghiorso et al., 1995) with gas-species properties from multiple thermochemistry tables (e.g., Chase et al., 1998). VapoRock calculates the partial pressures of 34 gaseous species in equilibrium with magmatic liquid in the system Si-Mg-Fe-Al-Ca-Na-K-Ti-Cr-O at desired temperatures and oxygen fugacities (fO2, or partial pressure of O2). Comparison with experiments shows that pressures and melt-oxide activities (which vary over many orders of magnitude) are reproduced to within a factor of ~3, consistent with measurement uncertainties. We also benchmark the model against a wide selection of igneous rock compositions including bulk silicate Earth, predicting elemental vapor abundances that are comparable (Na, Ca, & Al) or more realistic (K, Si, Mg, Fe, & Ti) than those of the closed-source MAGMA code (with maximum deviations by factors of 10-300 for K & Si). Vapor abundances depend critically on the activities of liquid components. The MELTS model underpinning VapoRock was calibrated and extensively tested on natural igneous liquids. In contrast, MAGMA's liquid model assumes ideal mixtures of a limited set of chemically simplified pseudo-species, which only roughly approximates the non-ideal compositional interactions typical of many-component natural silicate melts. Finally, we explore how relative abundances of SiO and SiO2 provide a spectroscopically measurable proxy for oxygen fugacity in devolatilized exoplanetary atmospheres, potentially constraining fO2 in outgassed exoplanetary mantles.
Deep Semantic-Visual Alignment for Zero-Shot Remote Sensing Image Scene Classification
Creators: name: Xu, Wenjia
name: Wang, Jiuniu
name: Wei, Zhiwei
name: Peng, Mugen
name: Wu, Yirong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep neural networks have achieved promising progress in remote sensing (RS) image classification, for which the training process requires abundant samples for each class. However, it is time-consuming and unrealistic to annotate labels for each RS category, given the fact that the RS target database is increasing dynamically. Zero-shot learning (ZSL) allows for identifying novel classes that are not seen during training, which provides a promising solution for the aforementioned problem. However, previous ZSL models mainly depend on manually-labeled attributes or word embeddings extracted from language models to transfer knowledge from seen classes to novel classes. Besides, pioneer ZSL models use convolutional neural networks pre-trained on ImageNet, which focus on the main objects appearing in each image, neglecting the background context that also matters in RS scene classification. To address the above problems, we propose to collect visually detectable attributes automatically. We predict attributes for each class by depicting the semantic-visual similarity between attributes and images. In this way, the attribute annotation process is accomplished by machine instead of human as in other methods. Moreover, we propose a Deep Semantic-Visual Alignment (DSVA) that take advantage of the self-attention mechanism in the transformer to associate local image regions together, integrating the background context information for prediction. The DSVA model further utilizes the attribute attention maps to focus on the informative image regions that are essential for knowledge transfer in ZSL, and maps the visual images into attribute space to perform ZSL classification. With extensive experiments, we show that our model outperforms other state-of-the-art models by a large margin on a challenging large-scale RS scene classification benchmark.
description: Published in ISPRS P&RS. The code is available at https://github.com/wenjiaXu/RS_Scene_ZSL
Grammar-based evolutionary approach for automated workflow composition with domain-specific operators and ensemble diversity
Creators: name: Barbudo, Rafael
name: Ramírez, Aurora
name: Romero, José Raúl
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6
subject: 68T05

description: The process of extracting valuable and novel insights from raw data involves a series of complex steps. In the realm of Automated Machine Learning (AutoML), a significant research focus is on automating aspects of this process, specifically tasks like selecting algorithms and optimising their hyper-parameters. A particularly challenging task in AutoML is automatic workflow composition (AWC). AWC aims to identify the most effective sequence of data preprocessing and ML algorithms, coupled with their best hyper-parameters, for a specific dataset. However, existing AWC methods are limited in how many and in what ways they can combine algorithms within a workflow.
 Addressing this gap, this paper introduces EvoFlow, a grammar-based evolutionary approach for AWC. EvoFlow enhances the flexibility in designing workflow structures, empowering practitioners to select algorithms that best fit their specific requirements. EvoFlow stands out by integrating two innovative features. First, it employs a suite of genetic operators, designed specifically for AWC, to optimise both the structure of workflows and their hyper-parameters. Second, it implements a novel updating mechanism that enriches the variety of predictions made by different workflows. Promoting this diversity helps prevent the algorithm from overfitting. With this aim, EvoFlow builds an ensemble whose workflows differ in their misclassified instances.
 To evaluate EvoFlow's effectiveness, we carried out empirical validation using a set of classification benchmarks. We begin with an ablation study to demonstrate the enhanced performance attributable to EvoFlow's unique components. Then, we compare EvoFlow with other AWC approaches, encompassing both evolutionary and non-evolutionary techniques. Our findings show that EvoFlow's specialised genetic operators and updating mechanism substantially outperform current leading methods[..]
description: 32 pages, 7 figures, 6 tables, journal paper
Monitoring, Adapting, and Evaluating a Competency-Based Assessment Framework in Medical Education Through Participatory Action Research
Creators: name: Ross, Shelley
name: Poth, Cheryl
name: Donoff, Michel
name: Humphries, Paul
Publisher: name: Alberta Journal of Educational Research
Year: 2010

description: Alberta Journal of Educational Research, Vol. 55 No. 4 (2009): Winter 2009
Evolution of the morphology surrounding deteriorating shore-parallel protection structures on sandy estuarine beaches
Creators: name: Korotky, Katherine
Publisher: name: No Publisher Supplied
Year: 2019

description: Coastal armoring has historically been the preferred method for the protection of coastal infrastructure threatened by inundation.  With sea level expected to accelerate in the future, the use of shore protection structures is anticipated to increase along with the likelihood that pre-existing structures will be at risk for overtopping and deterioration.  While pre-existing structures may be upgraded, maintained, or removed, abandonment and deterioration is the most likely scenario for structures not protecting important cultural, historical, or recreational resources due to the lack of cost and effort involved.  This study aims to understand and characterize the morphological changes that take place surrounding shore-parallel structures on sandy estuarine beaches as they deteriorate and remain within the landscape past their useful lifetime.  Four sites containing wood sheet pile bulkheads, four sites containing stone riprap revetments, and one natural site in Gateway National Recreation Area were evaluated based on topography and landcover as case studies, in conjunction with comprehensive shore protection structure inventories.  Results reveal that changes in the landscape over the course of a structure’s lifetime are predictable and can be described by four distinct morphological stages, where stage is a period in the lifetime of a structure characterized by the effectiveness of the protection structure and manifest in indicative features in the surrounding landscape.  As the condition or effectiveness of a structure decreases over time and stage increases, the amount of open water or bare sand landward of the structure increases along with sediment mobility.  Shoreline irregularity peaks during the deterioration process, before it returns to a more natural, linear state.  Successful renovations or improvements on existing structures should consider the pattern of deterioration during the planning process, and weigh the benefits of protection provided by the structure versus increased ecosystem resiliency of a natural beach.  A protection structure life stage model is presented as a tool to aid in the decision-making process. The most critical stage to make a decision regarding the improvement, repair, removal, or abandonment of a structure is Stage 2, which can be determined by managers via site visits or remote imagery using the key features described in this study.
Search for Mono-Higgs Signals in $b\bar b$ Final States Using Deep Neural Networks
Creators: name: Hammad, A.
name: Khalil, S.
name: Moretti, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study mono-Higgs signatures emerging in an illustrative new physics scenario involving Standard Model Higgs boson decays to bottom quark pairs using Hybrid Deep Neural Networks. We use a Multi-Layer Perceptron to analyze the kinematic observables and optimize the signal-to-background discrimination. The global color flow structure of hard jets emerging from the decay of heavy particles with different color charges is crucial to single out the mono-Higgs signature. Upon embedding the different color flow structures for signal and backgrounds into constructed images, we use a Convolution Neural Network to analyze the latter. Specifically, the approach takes initially a mono-type data as input, frittering away invaluable multi-source and multi-scale information. We then discuss a general architecture of Hybrid Deep Neural Networks that supports instead mixed input data. In comparison with single input Deep Neural Networks, like MultiLayers Perceptron or Convolution Neural Network, the Hybrid Deep Neural Networks provide higher capacity in feature extraction and thus in signal vs background classification performance. We provide reference results for the case of the High-Luminosity Large Hadron Collider.
description: published version
Effect of disorder studied with ferromagnetic resonance for arrays of tangentially magnetized sub-micron Permalloy discs fabricated by nanosphere lithography
Creators: name: Ross, Nils
name: Kostylev, Mikhail
name: Stamps, Robert L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Tangentially magnetized trigonal arrays of sub-micron Permalloy discs are characterized with ferromagnetic resonance to determine the possible contributions to frequency and linewidth from array disorder. Each array is fabricated by a water-surface self-assembly lithographic technique, and consists of a large trigonal array of 700 nm diameter magnetic discs. Each array is characterized by a different degree of ordering. Two modes are present in the ferromagnetic resonance spectra: a large amplitude, `fundamental' mode and a lower amplitude mode at higher field. Angular dependence of the resonance field in a very well ordered array is found to be negligible for both modes. The relationship between resonance frequency and applied magnetic field is found to be uncorrelated with array disorder. Linewidth is found to increase with increasing array disorder.
El acceso abierto y los repositorios científicos en España: Proyectos RECOLECTA, OPenAIRE y MedOANet
Creators: name: González Copeiro, Cristina
Publisher: name: Digital.CSIC
Year: 2011
Subjects: Repositorios institucionales
Organismos públicos de investigación
Institutional Repositories
Public Research Organizations
España
Spain
CIEMAT
CSIC
IAC
IEO
IGME
INIA
ISCIII
FECYT
Ministerio de Ciencia e Innovación
Spain's Ministry of Science and Innovation
Nueva Ley de la Ciencia
Spain's Science Law
Acceso abierto
Open Access

description: Presentación llevada a cabo en la jornada "Organismos Públicos de Investigación y el acceso abierto", celebrada el 24 de octubre de 2011 en la sede de la Unidad de Recursos de Información Científica para la Investigación (URICI) del CSIC. La jornada reunió a técnicos de las bibliotecas de investigación del CIEMAT, INIA, ISCIII, IGME, IAC, a un vocal asesor y a la responsable de la Coordinación editorial del IEO y a personal de la URICI y de su proyecto Digital.CSIC. Participaron también en la jornada representantes del Ministerio de ciencia e Innovación y del Departamento de Gestión de la Información Científica Integrada de la FECYT.
description: Conclusiones de la jornada disponibles en: Unidad de Recursos de Información Científica para la Investigación (URICI). Conclusiones de la Jornada de OPIS y el acceso abierto. http://hdl.handle.net/10261/42321
description: Resto de presentaciones: Bernal, Isabel. Introducción a Digital.CSIC, Estado del arte de repositorios de instituciones públicas de investigación. http://hdl.handle.net/10261/42208 .-- Gómez, Monique. El IAC y el Acceso Abierto. http://hdl.handle.net/10261/170322 .-- Primo Peña, Elena. El Instituto de Salud Carlos III y el Acceso Abierto. Iniciativas y resultados. http://hdl.handle.net/10261/170317
description: Breve introducción del proyecto de acceso abierto del Fundación Española Para la Ciencia y la Tecnología (FECYT) en la jornada "Organismos Públicos de Investigación y el acceso abierto" en la sede de la Unidad de Recursos de Información Científica para la Investigación (URICI) del CSIC.
On uniqueness and stable estimation of multiple parameters in the Cahn-Hilliard equation
Creators: name: Brunk, Aaron
name: Egger, Herbert
name: Habrich, Oliver
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We consider the identifiability and stable numerical estimation of multiple parameters in a Cahn-Hilliard model for phase separation. Spatially resolved measurements of the phase fraction are assumed to be accessible, with which the identifiability of single and multiple parameters up to certain scaling invariances is established. A regularized equation error approach is proposed for the stable numerical solution of the parameter identification problems, and convergence of the regularized approximations is proven under reasonable assumptions on the data noise. The viability of the theoretical results and the proposed methods is demonstrated in numerical tests.
A sol-gel method for growing superconducting MgB2 films
Creators: name: Chen, Liping
name: Zhang, Chen
name: Wang, Yinbo
name: Wang, Yue
name: Feng, Qingrong
name: Gan, Zizhao
name: Yang, Junzhi
name: Li, Xingguo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper we report a new sol-gel method for the fabrication of MgB2 films. Polycrystalline MgB2 films were prepared by spin-coating a precursor solution of Mg(BH_4)_2 diethyl ether on (001)Al2O3 substrates followed with annealing in Mg vapor. In comparison with the MgB2 films grown by other techniques, our films show medium qualities including a superconducting transition temperature of Tc ~ 37 K, a critical current density of Jc(5 K, 0 T) ~ 5 {\times} 10^6 A cm^{-2}, and a critical field of H_{c2}(0) ~ 19 T. Such a sol-gel technique shows potential in the commercial fabrication of practically used MgB2 films as well as MgB2 wires and tapes.
description: 8 pages, 5 figures
Polar Kerr Effect and Time Reversal Symmetry Breaking in Bilayer Graphene
Creators: name: Nandkishore, Rahul
name: Levitov, Leonid
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The unique sensitivity of optical response to different types of symmetry breaking can be used to detect and identify spontaneously ordered many-body states in bilayer graphene. We predict a strong response at optical frequencies, sensitive to electronic phenomena at low energies, which arises because of nonzero inter-band matrix elements of the electric current operator. In particular, the polar Kerr rotation and reflection anisotropy provide fingerprints of the quantum anomalous Hall state and the nematic state, characterized by spontaneously broken time reversal symmetry and lattice rotation symmetry, respectively. These optical signatures, which undergo a resonant enhancement in the near-infrared regime, lie well within reach of existing experimental techniques.
description: citations corrected
El Instituto de Salud Carlos III y el Acceso Abierto. Iniciativas y resultados
Creators: name: Primo Peña, Elena
Publisher: name: Digital.CSIC
Year: 2011
Subjects: Repositorios institucionales
Organismos públicos de investigación
Institutional Repositories
Public Research Organizations
España
Spain
CIEMAT
CSIC
IAC
IEO
IGME
INIA
ISCIII
FECYT
Ministerio de Ciencia e Innovación
Spain's Ministry of Science and Innovation
Nueva Ley de la Ciencia
Spain's Science Law
Acceso abierto
Open Access

description: Presentación llevada a cabo en la jornada "Organismos Públicos de Investigación y el acceso abierto", celebrada el 24 de octubre de 2011 en la sede de la Unidad de Recursos de Información Científica para la Investigación (URICI) del CSIC. La jornada reunió a técnicos de las bibliotecas de investigación del CIEMAT, INIA, ISCIII, IGME, IAC, a un vocal asesor y a la responsable de la Coordinación editorial del IEO y a personal de la URICI y de su proyecto Digital.CSIC. Participaron también en la jornada representantes del Ministerio de ciencia e Innovación y del Departamento de Gestión de la Información Científica Integrada de la FECYT.
description: Conclusiones de la jornada disponibles en: Unidad de Recursos de Información Científica para la Investigación (URICI). Conclusiones de la Jornada de OPIS y el acceso abierto. http://hdl.handle.net/10261/42321
description: Resto de presentaciones: Bernal, Isabel. Introducción a Digital.CSIC, Estado del arte de repositorios de instituciones públicas de investigación. http://hdl.handle.net/10261/42208 .-- Gómez, Monique. El IAC y el Acceso Abierto. http://hdl.handle.net/10261/170322 .-- González Copeiro, Cristina. El acceso abierto y los repositorios científicos en España: Proyectos RECOLECTA, OPenAIRE y MedOANet. http://hdl.handle.net/10261/170324
description: Breve introducción del proyecto de acceso abierto del Instituto de Salud Carlos III (ISCIII) en la jornada "Organismos Públicos de Investigación y el acceso abierto" en la sede de la Unidad de Recursos de Información Científica para la Investigación (URICI) del CSIC.
Evaporation of non-circular droplets
Creators: name: Wray, Alexander W.
name: Moore, Matthew R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamics of thin, non-circular droplets evaporating in the diffusion-limited regime are examined. The challenging non-rectilinear mixed-boundary problem this poses is solved using a novel asymptotic approach and an asymptotic expansion for the evaporative flux from the free surface of the droplet is found. While theoretically valid only for droplets that are close to circular, it is demonstrated that the methodology can successfully be applied to droplets with a wide variety of footprint shapes, including polygons and highly non-convex domains. While the applications of this are numerous, the analytically-tractable case of deposition of solute from large droplets is examined in detail, including a matched asymptotic analysis to resolve the pressure, streamlines and deposition up to second order.
description: 21 pages, 8 figures
El IAC y el Acceso Abierto
Creators: name: Gómez, Monique
Publisher: name: Digital.CSIC
Year: 2011
Subjects: Repositorios institucionales
Organismos públicos de investigación
Institutional Repositories
Public Research Organizations
España
Spain
CIEMAT
CSIC
IAC
IEO
IGME
INIA
ISCIII
FECYT
Ministerio de Ciencia e Innovación
Spain's Ministry of Science and Innovation
Nueva Ley de la Ciencia
Spain's Science Law
Acceso abierto
Open Access

description: Presentación llevada a cabo en la jornada "Organismos Públicos de Investigación y el acceso abierto", celebrada el 24 de octubre de 2011 en la sede de la Unidad de Recursos de Información Científica para la Investigación (URICI) del CSIC. La jornada reunió a técnicos de las bibliotecas de investigación del CIEMAT, INIA, ISCIII, IGME, IAC, a un vocal asesor y a la responsable de la Coordinación editorial del IEO y a personal de la URICI y de su proyecto Digital.CSIC. Participaron también en la jornada representantes del Ministerio de ciencia e Innovación y del Departamento de Gestión de la Información Científica Integrada de la FECYT.
description: Conclusiones de la jornada disponibles en: Unidad de Recursos de Información Científica para la Investigación (URICI). Conclusiones de la Jornada de OPIS y el acceso abierto. http://hdl.handle.net/10261/42321
description: Resto de presentaciones: Bernal, Isabel. Introducción a Digital.CSIC, Estado del arte de repositorios de instituciones públicas de investigación. http://hdl.handle.net/10261/42208 .-- González Copeiro, Cristina. El acceso abierto y los repositorios científicos en España: Proyectos RECOLECTA, OPenAIRE y MedOANet. http://hdl.handle.net/10261/170324 .-- Primo Peña, Elena. El Instituto de Salud Carlos III y el Acceso Abierto. Iniciativas y resultados. http://hdl.handle.net/10261/170317
description: Breve introducción del proyecto de acceso abierto del Instituto de Astrofísica de Canarias (IAC) en la jornada "Organismos Públicos de Investigación y el acceso abierto" en la sede de la Unidad de Recursos de Información Científica para la Investigación (URICI) del CSIC.
Unification of the first law of quantum thermodynamics
Creators: name: Dann, Roie
name: Kosloff, Ronnie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Underlying the classical thermodynamic principles are analogous microscopic laws, arising from the fundamental axioms of quantum mechanics. These define quantum thermodynamic variables such as quantum work and heat and characterize the possible transformations of open quantum systems. The foremost quantum thermodynamic law is a simple statement concerning the conservation of energy. Nevertheless, there exist ambiguity and disagreement regarding the precise partition of a quantum system's energy change to work and heat. By treating quantum mechanics as a comprehensive theory, applicable to both the micro and macroscopic domains, and employing dynamical symmetries, we bridge the gaps between five popular thermodynamic approaches to the first law. These include both autonomous and semi-classical formulations, which define work in terms of an ensemble average, as well as the single shot paradigm, where work is defined as a deterministic quantity.
Visual Methodology in Classroom Inquiry: Enhancing Complementary Qualitative Research Designs
Creators: name: Kingsley, Joanne
Publisher: name: Alberta Journal of Educational Research
Year: 2010

description: This article presents the argument that combining visual methods with other qualitative research methods enhances the inherent strengths of each methodology and allows new understandings to emerge. These would otherwise remain hidden if only one method were used in isolation. In a qualitative inquiry of an elementary teacher’s constructivist literacy practices, categorizing and contextualizing strategies using grounded theory and narrative analysis were juxtaposed with visual analysis. The interactive, interpretive process of moving back and forth between visual and textual data demonstrated the power of visual images to explicate the complexities of classroom practice.
description: Alberta Journal of Educational Research, Vol. 55 No. 4 (2009): Winter 2009
Interacting Dreaming Neural Networks
Creators: name: Zanin, Pietro
name: Caticha, Nestor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the interaction of agents, where each one consists of an associative memory neural network trained with the same memory patterns and possibly different reinforcement-unlearning dreaming periods. Using replica methods, we obtain the rich equilibrium phase diagram of the coupled agents. It shows phases such as the student-professor phase, where only one network benefits from the interaction while the other is unaffected; a mutualism phase, where both benefit; an indifferent phase and an insufficient phase, where neither are benefited nor impaired; a phase of amensalism where one is unchanged and the other is damaged. In addition to the paramagnetic and spin glass phases, there is also one we call the reinforced delusion phase, where agents concur without having finite overlaps with memory patterns. For zero coupling constant, the model becomes the reinforcement and removal dreaming model, which without dreaming is the Hopfield model. For finite coupling and a single memory pattern, it becomes a Mattis version of the Ashkin-Teller model. In addition to the analytical results, we have explored the model with Monte Carlo simulations.
description: 23 pages , 4 figures