cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Local density of states analysis of surface wave modes on truncated photonic crystal surfaces with nonlinear material
Creators: name: Elson, J. Merle
name: Halterman, Klaus
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The local density of states and response to an incident plane wave of a finite sized photonic crystal (PC) with nonlinear material (NLM) is analyzed. Of particular interest is the excitation of surface wave modes at the truncated surface of the PC, which is collocated with the NLM material. We compute the 2D Green function of the PC with linear material and then include the Kerr NLM in a self-consistent manner. The 2D PC consists of a square array of circular rods where one row of the rods is semi-circular in order to move the surface wave defect mode frequency into the band gap. Since the surface modes are resonant at the interface, the NLM should experience at least an order of magnitude increase in field intensity. This is a possible means of increasing the efficiency of the PC as a frequency conversion device.
Online Appendix
Creators: name: Denkovski, Ognjan
name: Trilling, Damian
Publisher: name: figshare
Year: 2020
Subjects: subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications
subject: 200101 Communication Studies
subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: The online appendix includes information regarding the data and analyses pertinent to the project.
Efficient Searches for r-Process-Enhanced, Metal-Poor Stars
Creators: name: Beers, T. C.
name: Barklem, P. S.
name: Christlieb, N.
name: Hill, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutron-capture-enhanced, metal-poor stars are of central importance to developing an understanding of the operation of the r-process in the early Galaxy, thought to be responsible for the formation of roughly half of all elements beyond the iron peak. A handful of neutron-capture-rich, metal-poor stars with [Fe/H] < -2.0 have already been identified, including the well known r-process-enhanced stars CS 22892-052 and CS 31082-001. However, many questions of fundamental interest can only be addressed with the assemblage of a much larger sample of such stars, so that general properties can be distinguished. We describe a new effort, HERES: The Hamburg/ESO R-Process-Enhanced Star survey, nearing completion, which will identify on the order of 5-10 additional highly r-process-enhanced, metal-poor stars, and in all likelihood, a similar or greater number of mildly r-process-enhanced, metal-poor stars in the halo of the Galaxy. HERES is based on rapid "snapshot" spectra of over 350 candidate halo giants with [Fe/H] < -2.0, obtained at moderately high resolution, and with moderate signal-to-noise ratios, using the UVES spectrograph on the European VLT 8m telescope.
description: Contributed paper to The Eighth Nuclei in the Cosmos conference, to appear (in refereed form) in Nuclear Physics A
Understanding Semiconductor Valence Mass
Creators: name: Combescot, Monique
name: Shiau, Shiue-Yuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Bloch theorem mathematically proves that in a periodic crystal, electrons can acquire a negative mass. The present work aims to provide a physical understanding for why this is so. We successively analyze the consequences of the 3-fold orbital valence state coupling to (i) a non-degenerate orbital level in the conduction band, (ii) a 3-fold orbital level in the conduction band, and (iii) spin states through spin-orbit interaction. We show that it is not at all trivial for valence electrons to acquire a negative mass for whatever their momentum with respect to the crystal axes: it is necessary to not only have a coupling to a degenerate orbital conduction level, but also a symmetry breaking of the 3-fold valence subspace by the spin quantization axis, as induced by spin-orbit interaction. Due to the relativistic origin of this interaction, the existence of negative valence masses thus constitutes an unexpected signature of quantum relativity.
description: 10 pages, 4 figures
B physics at the DO Experiment at Fermilab
Creators: name: Jain, Vivek
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss recent $B$ physics results from the DØexperiment at Fermilab. The results presented here use data sets with integrated luminosities ranging from $\sim 200-440 $ pb$^{-1}$, collected at the Tevatron, between April 2002 and August 2004, at a center of mass energy of $p {\bar p}$ collisions of 1.96 TeV
description: To appear in Modern Physics Letters A. Fixed references
Moral judgment and collectivism : a cultural comparison among community and university college students
Creators: name: Loo, Gregory Ming-Wai
Publisher: name: University of British Columbia
Year: 2009

description: Differences in moral judgment, with respect to individualism and collectivism, were investigated. One hundred and eighty-five undergraduate community college students completed the Defining Issues Test, Version 2 (DIT-2) and Triandis' (1995) measure of the individualism/collectivism (IC) construct. This study asked the following questions: (1) What is the nature of the relation of moral reasoning to individualism and collectivism? (2) What is the nature of the relation of moral reasoning to the horizontal and vertical dimensions of the individualism/collectivism (IC) construct? Although no significant associations of moral reasoning were found with general individualism/collectivism, significant associations were found with some of the specific dimensions of the IC construct. Vertical Individualism and Vertical Collectivism were associated with lower levels of moral reasoning and Horizontal Individualism was associated with higher levels of moral reasoning. These findings suggest that the horizontal and vertical relationships of the IC construct may be a significant factor in moral reasoning, a factor that had not been considered in previous research.
Flexibility and rigidity in steady fluid motion
Creators: name: Constantin, Peter
name: Drivas, Theodore D.
name: Ginsberg, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Flexibility and rigidity properties of steady (time-independent) solutions of the Euler, Boussinesq and Magnetohydrostatic equations are investigated. Specifically, certain Liouville-type theorems are established which show that suitable steady solutions with no stagnation points occupying a two-dimensional periodic channel, or axisymmetric solutions in (hollowed out) cylinder, must have certain structural symmetries. It is additionally shown that such solutions can be deformed to occupy domains which are themselves small perturbations of the base domain. As application of the general scheme, Arnol'd stable solutions are shown to be structurally stable.
description: 35 pages, 3 figures
Medida de la compensación del daño ambiental en la Directiva de Responsabilidad Ambiental: lecciones aprendidas del caso Aznalcóllar-Doñana
Creators: name: Martin-Ortega, Julia
name: Brouwer, Roy
name: Aiking, Harry
name: Martin-Ortega, Julia
name: Brouwer, Roy
name: Aiking, Harry
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Directiva de Responsabilidad Ambiental
subject: compensación del daño
subject: valoración contingente
subject: Aznalcóllar-Doñana

description: El daño ambiental producido por el vertido tóxico de 1998 en las inmediaciones del Parque de Doñana es analizado bajo la óptica de la nueva Directiva de Responsabilidad Ambiental (DRA), que obliga al operador de la actividad contaminadora a compensar por las pérdidas provisionales. El objetivo es analizar el papel de la valoración económica en la medida de la compensación en el marco de la DRA y extraer algunas lecciones para futuras aplicaciones. Los resultados apuntan a que los servicios proporcionados por el Corredor Verde realizado tras el accidente no han compensado el daño. Se pone de manifiesto la necesidad de profundizar en el análisis de valores de no uso, el control de las respuestas protesta y el planteamiento de escenarios de valoración específicos para las pérdidas provisionales.
Cooperative Monitoring and Dissemination of Urban Events Supported by Dynamic Clustering of Vehicles
Creators: name: Andrade, Everaldo
name: Veloso, Kevin
name: Vasconcelos, Nathália
name: Santos, Aldri
name: Matos, Fernando
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Critical urban events take places at a random way and they need to be dealt with by public authorities quickly to maintain the proper operation of cities. The main challenges for an efficient handling of an event fall precisely in its random nature, and in the speed and accuracy of the notification of its manifestation to the authority. The pervasiveness of vehicles in urban environments, and their communication and monitoring capabilities, allow to employ VANETs to support the dissemination and handling of such events. Thus, this work proposes MINUET, a dynamic system to support the monitoring and dissemination of urban events, which operates in an ad hoc vehicular network. It uses a cooperative-based strategy where vehicles are able to dynamically coordinate the monitoring and dissemination of events in real time by the means of clusters. Results obtained by NS3 show the performance of MINUET regarding the real-time monitoring and dissemination of events detected in urban areas.
description: This work has been submitted to the Pervasive and Mobile Computing (PMC) journal for possible publication
Bar Evolution Over the Last Eight Billion Years: A Constant Fraction of Strong Bars in GEMS
Creators: name: Jogee, S.
name: Barazza, F. D.
name: Rix, H. -W.
name: Shlosman, I.
name: Barden, M.
name: Wolf, C.
name: Davies, J.
name: Heyer, I.
name: Beckwith, S. V. W.
name: Bell, E. F.
name: Borch, A.
name: Caldwell, J. A. R.
name: Conselice, C. J.
name: Dahlen, T.
name: Haussler, B.
name: Heymans, C.
name: Jahnke, K.
name: Knapen, J. H.
name: Laine, S.
name: Lubell, G. M.
name: Mobasher, B.
name: McIntosh, D. H.
name: Meisenheimer, K.
name: Peng, C. Y.
name: Ravindranath, S.
name: Sanchez, S. F.
name: Somerville, R. S.
name: Wisotzki, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: One third of present-day spirals host optically visible strong bars that drive their dynamical evolution. However, the fundamental question of how bars evolve over cosmological times has yet to be addressed, and even the frequency of bars at intermediate redshifts remains controversial. We investigate the frequency of bars out to z~1.0 drawing on a sample of 1590 galaxies from the GEMS survey, which provides morphologies from HST ACS two-color images, and highly accurate redshifts from the COMBO-17 survey. We identify spiral galaxies using the Sersic index, concentration parameter, and rest-frame color. We characterize bars and disks by fitting ellipses to F606W and F850LP images, taking advantage of the two bands to minimize bandpass shifting. We exclude highly inclined (i>60 deg) galaxies to ensure reliable morphological classifications, and apply completeness cuts of M_v <= -19.3 and -20.6. More than 40% of the bars that we detect have semi major axes a<0.5" and would be easily missed in earlier surveys without the small PSF of ACS. The bars that we can reliably detect are fairly strong (with ellipticities e>=0.4) and have a in the range ~1.2-13 kpc. We find that the optical fraction of such strong bars remains at ~(30% +- 6%) from the present-day out to look-back times of 2-6 Gyr (z~0.2-0.7) and 6-8 Gyr (z~0.7-1.0); it certainly shows no sign of a drastic decline at z>0.7. Our findings of a large and similar bar fraction at these three epochs favor scenarios in which cold gravitationally unstable disks are already in place by z~1, and where on average bars have a long lifetime (well above 2 Gyr). The distributions of structural bar properties in the two slices are, however, not statistically identical and therefore allow for the possibility that the bar strengths and sizes may evolve over time.
description: Accepted by ApJ Letters, to appear in Nov 2004 issue. Minor revisions,updated references
Quantum dynamics of the Li+HF-->H+LiF reaction at ultralow temperatures
Creators: name: Weck, P. F.
name: Balakrishnan, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Quantum mechanical calculations are reported for the Li+HF(v=0,1,j=0)-->H+LiF(v',j') bimolecular scattering process at low and ultralow temperatures. Calculations have been performed for zero total angular momentum using a recent high accuracy potential energy surface for the X 2A' electronic ground state. For Li+HF(v=0,j=0), the reaction is dominated by resonances due to the decay of metastable states of the Li...F-H van der Waals complex. Assignment of these resonances has been carried out by calculating the eigenenergies of the quasibound states. We also find that while chemical reactivity is greatly enhanced by vibrational excitation the resonances get mostly washed out in the reaction of vibrationally excited HF with Li atoms. In addition, we find that at low energies, the reaction is significantly suppressed due to the formation of rather deeply bound van der Waals complexes and the less efficient tunneling of the relatively heavy fluorine atom.
description: 24 pages, 8 figures, 1 table, submitted to J. Chem. Phys
Quintet pairing and non-Abelian vortex string in spin-3/2 cold atomic systems
Creators: name: Wu, Congjun
name: Hu, Jiangping
name: Zhang, Shou-Cheng
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the s-wave quintet Cooper pairing phase ($S_{tot}=2$) in spin-3/2 cold atomic systems and identify various novel features which do not appear in the spin-1/2 counterpart. A single quantum vortex is shown to be energetically less stable than a pair of half-quantum vortices (HQV). The HQV exhibits the global analogue of the non-Abelian Alice string and SO(4) Cheshire charge in gauge theories. The non-Abelian HQV loop enables topological generation of quantum entanglement.
description: revised version, accepted by Int. J. Mod. Phys. B
The $b \to s$ penguin amplitude in charmless $B \to PP$ decays
Creators: name: Gronau, Michael
name: Rosner, Jonathan L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The $b \to s$ penguin amplitude affects a number of $B$ meson decays to two pseudoscalar ($P$) mesons in which potential anomalies are being watched carefully, though none has yet reached a statistically compelling level. These include (a) a rate for $B^0 \to K^0 π^0$ which is slightly enhanced with respect to expectations; (b) a time-dependent CP asymmetry parameter $S$ for $B^0 \to K^0 π^0$ which is low in comparison with the expected value of $\sin 2 β\simeq 0.73$, and (c) a similar deviation in the parameter $S$ for $B^0 \to η' K_S$. These and related phenomena involving vector mesons in the final state are discussed in a unified way in and beyond the Standard Model. Future experiments which would conclusively indicate the presence of new physics are identified. Several of these involve decays of the strange $B$ meson $B_s$. In the Standard Model we note an approximate sum rule for CP rate differences in $B^0\to K^+π^-, B^+\to K^+π^0$ and $B^0\to K^0π^0$, predicting a negative sign for the latter asymmetry.
description: 23 pages, one figure, to be published in Phys. Rev. D. One reference updated; small typos corrected; one last correction
Maximal Temperature in Flux Compactifications
Creators: name: Buchmuller, Wilfried
name: Hamaguchi, Koichi
name: Lebedev, Oleg
name: Ratz, Michael
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Thermal corrections have an important effect on moduli stabilization leading to the existence of a maximal temperature, beyond which the compact dimensions decompactify. In this note, we discuss generality of our earlier analysis and apply it to the case of flux compactifications. The maximal temperature is again found to be controlled by the supersymmetry breaking scale, T_{crit} \sim \sqrt{m_{3/2} M_P}.
description: 10 pages, 10 figures. v2:comment and references added
First-principles investigation of spin polarized conductance in atomic carbon wire
Creators: name: Senapati, L.
name: Pati, R.
name: Mailman, M.
name: Nayak, S. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We analyze spin-dependent energetics and conductance for one dimensional (1D) atomic carbon wires consisting of terminal magnetic (Co) and interior nonmagnetic (C) atoms sandwiched between gold electrodes, obtained employing first-principles gradient corrected density functional theory and Landauer's formalism for conductance. Wires containing an even number of interior carbon atoms are found to be acetylenic with sigma-pi bonding patterns, while cumulene structures are seen in wires containing odd number of interior carbon atoms, as a result of strong pi-conjugation. Ground states of carbon wires containing up to 13 C atoms are found to have anti-parallel spin configurations of the two terminal Co atoms, while the 14 C wire has a parallel Co spin configuration in the ground state. The stability of the anti-ferromagnetic state in the wires is ascribed to a super-exchange effect. For the cumulenic wires this effect is constant for all wire lengths. For the acetylenic wires, the super-exchange effect diminishes as the wire length increases, going to zero for the atomic wire containing 14 carbon atoms. Conductance calculations at the zero bias limit show spin-valve behavior, with the parallel Co spin configuration state giving higher conductance than the corresponding anti-parallel state, and a non-monotonic variation of conductance with the length of the wires for both spin configurations.
description: revtex, 6 pages, 5 figures
ICDVarBase_PV
Creators: name: Hsin-Tzu Huang
name: Wei-Chih Huang
name: Po-Yuan Chen
name: Chia-Ti Tsai
name: Wei-Chi Wang
name: Ko, Tai-Ming
name: Chen, Wen-Liang
name: Hu, Yu-Feng
name: Hsien-Da Huang
Publisher: name: figshare
Year: 2020
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: Cardiology
subject: Genetics
subject: FOS: Biological sciences

description: The data of the identified putative variants, corresponding patients, and related annotations in ICDVarBase is provided to the research community free of charge as comma separated values file.
Spin transfer to $Λ_{c}^{+}$ hyperons in polarized proton collisions at RHIC
Creators: name: Rykov, V. L.
name: Sudoh, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The analysis\cite{ohkuma:1} of helicity transfer to $Λ_{c}^{+}$ in polarized proton collisions is extended to the proton helicity correlations with the $Λ_{c}^{+}$ transverse polarization in the production plane (parameter $D_{LS}$). The available spin transfer observables for the collisions of {\em two} longitudinally polarized protons are evaluated. It is shown that, in the central region at $Λ_{c}^{+}$ transverse momenta of a few GeV/c, $D_{LS}$ parameters are of about the same size as the helicity-to-helicity correlations. The methodical issue of using spin transfers for cross-checks of systematic errors in cross-section $A_{LL}$ measurements at polarized proton colliders is also briefly discussed.
description: To be published in the proceedings of SPIN2004 Symposium, 4 pages, 1 figure
Origin of the orbital polarization of Co$^{2+}$ in La$_2$CoTiO$_6$ and (LaCoO$_3$)$_1$+(LaTiO$_3$)$_1$ : a DFT+$U$ and DMFT study
Creators: name: Lee, Alex Taekyung
name: Park, Hyowon
name: Ismail-Beigi, Sohrab
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The unequal electronic occupation of localized orbitals (orbital polarization), and associated lowering of symmetry and degeneracy, play an important role in the properties of transition metal oxides. Here, we examine systematically the underlying origin of orbital polarization, taking as exemplar the 3$d$ manifold of Co$^{2+}$ in a variety of spin, orbital and structural phases in the double perovskite La$_2$CoTiO$_6$ and the (001) superlattice (LaCoO$_3$)$_1$+(LaTiO$_3$)$_1$ systems. Superlattices are of specific interest due to the large experimentally observed orbital polarization of their Co cations. Based on first principles calculations, we find that robust and observable orbital polarization requires symmetry reduction through the lattice structure; the role of local electronic interactions is to greatly enhance the orbital polarization.
description: 9pages, 8 figures, 1 table
A New Method for Global Maximum Power Point Tracking of Photovoltaic Arrays Including Several Parallel Strings under Partial Shading Conditions
Creators: name: Hashemzadeh, Seyed Majid
name: Hejri, Mohammed
Publisher: name: figshare
Year: 2020
Subjects: subject: 90607 Power and Energy Systems Engineering (excl. Renewable Power)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)

description:
In this paper, a new method for extracting the global maximum power point (GMPP) of a PV array under partial shading conditions (PSCs) is presented. In the proposed method, it is shown that, independent of the pattern and intensity of the radiation, the GMPP position is always in the neighboring of the global peaks of one of the photovoltaic (PV) strings in the PV array. Therefore, in contrast to the existing methods in which the number of local peaks, tested as a GMPP candidate, is dependent on the number of different radiation levels on the array surface, in the proposed technique this number is reduced to the number of parallel strings in the photovoltaic array and is independent of the irradiation pattern on the PV array. As a result, to track the GMPP in PSC, first the GMPP of each PV string is estimated, and then the voltage of each of the estimated points is given to the power electronic converter as a reference voltage to regulate the PV array voltage at the corresponding candidate GMPP voltage. Next, in each case, the produced power is recorded and the voltage that produces the maximum power is known as the final GMPP of the PV array. Numerical results and comparative study with similar methods confirm the desirable performance of the proposed algorithm in finding the GMPP with an acceptable speed and accuracy.
Habitability is a continuous property of nature
Creators: name: Heller, René
Publisher: name: arXiv
Year: 2020
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In their recent comment, Cockell et al. argue that the habitability of an environment is fundamentally a binary property; that is to say, an environment can either support the metabolic processes of a given organism or not. The habitability of different environments, they argue, may have different degrees that could be determined at least in theory by answering the question: 'is this environment habitable to a given organism?' 'More' or 'less' habitable environments could then be related by the number of yes or no answers given to what is fundamentally a series of binary questions and decisions. In my opinion, there are at least three implicit assumptions made for this line of reasoning that are implausible and that sabotage the conclusions. The first is in the genetic diversity of the organisms, which I argue is fundamentally continuous in nature and a binary construction of the sample is not meaningful. The second misconception is in the assumption that an ecosystem can be decomposed into subsets of independent samples. The third problem is in the definition of an environment. The question of the environment is a continuous one in both space and time and thus any concept constructed to be applicable to a sample of environments must be continuous as well. In summary, the question of whether habitability is a binary quantity or not brings us back to the question of whether our concepts of life and of the environments that life thrives in (or not) are binary or non-binary. I argue that the latter is the case, and hence any modern concept of habitability must be continuous too.
description: 1 col. figure
Ficha Informativa – Captura y utilización de carbono ¡Más que una tecnología de eliminación de carbono!
Creators: name: Banduka, Dusica
name: Schwarzenberger, Anke
Publisher: name: Zenodo
Year: 2025

description: CCU en WaterProofEl proyecto WaterProof de Horizonte Europa (Reducción de emisiones del tratamiento de aguas y residuos urbanos mediante el uso de CO2 para la producción de productos químicos derivados del formato), tiene como objetivo desarrollar un proceso electroquímico que convierta las emisiones de CO2 capturadas en las instalaciones de incineración de residuos de consumo y de tratamiento de aguas residuales en ácido fórmico. El ácido fórmico se utilizará luego en valiosos productos ecológicos de consumo, como detergentes de limpieza y como agente curtiente para prendas de cuero de pescado. Además, el ácido fórmico derivado del CO2 se utiliza para la generación de disolventes eutécticos profundos ácidos (ADES), que pueden aplicarse para recuperar metales preciosos de lodos de aguas residuales y cenizas de incineración. Al utilizar energía renovable para el proceso electroquímico, se contribuye a un ciclo del agua limpia y con cero emisiones. Al final del proyecto, se ampliará la tecnología WaterProof y se construirá una fábrica piloto de conversión. WaterProof permite cerrar el ciclo de carbono de los residuos (agua) y pasar de fuentes de carbono fósiles a renovables. De esta forma se apoya la transición hacia una Europa climáticamente neutra y una economía eficaz y verdaderamente circular.

¿Qué es la captura y utilización de carbono (CCU, por sus siglas en inglés)?La captura y utilización de carbono (CCU) describe un conjunto diverso de tecnologías que permiten la captura y el uso de dióxido de carbono (CO2) como materia prima renovable para productos esenciales como combustibles, productos químicos y materiales de construcción, que hoy en día se derivan predominantemente de recursos fósiles.Las emisiones de CO2 pueden capturarse directamente del aire (captura directa del aire, DAC, por sus siglas en inglés) o de fuentes puntuales. En este último caso, los sectores con altas emisiones, como la producción de cemento, la incineración de residuos y el tratamiento de aguas residuales, son especialmente adecuados como fuentes puntuales. Las estimaciones prevén que el 21 % de las reducciones de GEI de las tecnologías provendrán de la captura directa del aire, lo que reducirá las emisiones de CO2 en aproximadamente 250 Mt en la UE para 20502, y que la capacidad total de producción de nuevos productos basados en CO2 aumentará de 1,3 Mt por año en 2022 a 6 Mt por año en 2030.
Hybridized intervalley moiré excitons and flat bands in twisted WSe$_2$ bilayers
Creators: name: Brem, Samuel
name: Lin, Kai-Qiang
name: Gillen, Roland
name: Bauer, Jonas M.
name: Maultzsch, Janina
name: Lupton, John M.
name: Malic, Ermin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The large surface-to-volume ratio in atomically thin 2D materials allows to efficiently tune their properties through modifications of their environment. Artificial stacking of two monolayers into a bilayer leads to an overlap of layer-localized wave functions giving rise to a twist angle-dependent hybridization of excitonic states. In this joint theory-experiment study, we demonstrate the impact of interlayer hybridization on bright and momentum-dark excitons in twisted WSe$_2$ bilayers. In particular, we show that the strong hybridization of electrons at the $Λ$ point leads to a drastic redshift of the momentum-dark K-$Λ$ exciton, accompanied by the emergence of flat moiré exciton bands at small twist angles. We directly compare theoretically predicted and experimentally measured optical spectra allowing us to identify photoluminescence signals stemming from phonon-assisted recombination of layer-hybridized dark excitons. Moreover, we predict the emergence of additional spectral features resulting from the moiré potential of the twisted bilayer lattice.
Evolución de la productividad del agua en la Cuenca del Guadalquivir 1989-2005
Creators: name: Carrasco, Jose Manuel
name: Piston, Juan Maximo
name: Berbel, Julio
name: Carrasco, Jose Manuel
name: Piston, Juan Maximo
name: Berbel, Julio
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Regadío
subject: productividad
subject: agua
subject: eficiencia
subject: escasez.

description: Para entender el desarrollo de la agricultura de riego es necesario estudiar la evolución de la productividad del agua en los cultivos de regadío. Este trabajo analiza la evolución de este indicador en los años 1989 y 2005 en la Cuenca del Guadalquivir. Para ello, se han utilizado datos estadísticos que, primero, han sido tratados a nivel comarcal y de cultivo y, posteriormente, se han agregado hasta obtener un valor global para toda la cuenca. Del conjunto de los resultados se deduce un valor de la productividad aparente del agua de aproximadamente un 0,5 €/m3 para el año 2005 y un incremento de un 327% respecto al año 1989.
D2.1 – Intended Learning Outcomes (ILOs) for Standardisation Education
Creators: name: Veljanova, Hristina
Publisher: name: Zenodo
Year: 2025
Subjects: Education
Standardisation
Values
ILOs framework
human-centred approach
responsible standardisation
EUvalues

description: The deliverable is currently pending approval. Please note that the document has not yet been revised or approved by the Granting Authority. Therefore, any information contained within this document is subject to change and should not be considered final until formal approval is granted.

This deliverable is part of the EDU4Standards.eu project, WP2, which focuses on designing innovative teaching concepts for standardisation. 

A key output is the creation of a value-based Intended Learning Outcomes (ILOs) framework for standardisation education. This framework aims to address gaps in standardisation education by providing a comprehensive structure for ILOs and qualification levels, incorporating values such as European, green, digital, and gender skills. It is based on existing frameworks like the European Qualifications Framework (EQF) and Bloom's Taxonomy. The framework is designed to guide lecturers in creating value-based standardisation courses and to support curriculum development for educational systems and national strategies. It benefits lecturers, learners, and a wide range of stakeholders, including industry, NGOs, and research organisations.
The Fueling and Evolution of AGN: Internal and External Triggers
Creators: name: Jogee, Shardha
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this chapter, I review the fueling and evolution of active galactic nuclei (AGN) under the influence of internal and external triggers, namely intrinsic properties of host galaxies (morphological or Hubble type, color, presence of bars and other non-axisymmetric features, etc) and external factors such as environment and interactions. The most daunting challenge in fueling AGN is arguably the angular momentum problem as even matter located at a radius of a few hundred pc must lose more than 99.99 % of its specific angular momentum before it is fit for consumption by a BH. I review mass accretion rates, angular momentum requirements, the effectiveness of different fueling mechanisms, and the growth and mass density of black BHs at different epochs. I discuss connections between the nuclear and larger-scale properties of AGN, both locally and at intermediate redshifts, outlining some recent results from the GEMS and GOODS HST surveys.
description: Invited Review Chapter to appear in LNP Volume on "AGN Physics on All Scales", Chapter 6, in press. 40 pages, 12 figures. Typo in Eq 5 corrected
D2.1 – Intended Learning Outcomes (ILOs) for Standardisation Education
Creators: name: Veljanova, Hristina
Publisher: name: Zenodo
Year: 2024
Subjects: Education
Standardisation
Values
ILOs framework
human-centred approach
responsible standardisation
EUvalues

description: This deliverable is part of the EDU4Standards.eu project, WP2, which focuses on designing innovative teaching concepts for standardisation. 

A key output is the creation of a value-based Intended Learning Outcomes (ILOs) framework for standardisation education. This framework aims to address gaps in standardisation education by providing a comprehensive structure for ILOs and qualification levels, incorporating values such as European, green, digital, and gender skills. It is based on existing frameworks like the European Qualifications Framework (EQF) and Bloom's Taxonomy. The framework is designed to guide lecturers in creating value-based standardisation courses and to support curriculum development for educational systems and national strategies. It benefits lecturers, learners, and a wide range of stakeholders, including industry, NGOs, and research organisations.
description: Pending Approval
Echoes of a Squeezed Oscillator
Creators: name: Merlin, Roberto
name: Bianchini, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Pulses applied to an inhomogeneously broadened set of harmonic oscillators, previously prepared in squeezed states, can lead to a recovery of coherence, manifesting itself as echoes, similar to those exhibited by an ensemble of spins when excited by properly designed electromagnetic pulses. Such echoes, of classical or quantum nature, are expected to arise in the squeezing of linear systems of various sorts and, in particular, light and vibrational modes.
A case study of recurring fantasy narratives and adolescent depression
Creators: name: Kusu, Claire L.
Publisher: name: University of British Columbia
Year: 2009

description: The literature and research on the interaction between fantasies and depression is extremely limited and there has been no research on the interaction of these two forces during adolescence in females. The two basic possibilities that fantasies may contribute to depression or help to alleviate it are offered. The study presented utilizes a case study approach from a Narrative perspective. Multiple functions of fantasy are revealed, contributing to a complex interaction between fantasy and depression. There is also interplay between fantasy and reality that provides the basis for the therapeutic potential of fantasy.
Policy Briefing. Promoting Cultural Literacy in Schools
Creators: name: Cook, Victoria
name: Harrison, Fiona
name: Maine, Fiona
Publisher: name: Zenodo
Year: 2020
Subjects: cultural literacy
dialogue and argumentation
cultural diversity
inclusiveness

description: Policy Briefing DIALLS cultural literacy programme supports children’s dialogue and argumentation skills and cultural literacy learning, creates spaces for dialogue about cultural diversity and identities and develops tolerant, inclusive and empathetic school communities. The decision to implement a programme of cultural literacy learning should form part of a coherent school strategy. Of particular relevance is the recent inclusion of global competence in the OECD Programme for International Student Assessment (PISA) (OECD, 2018).
História oral na coleção do Museu do Samba: registrar para salvaguardar
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Nilcemar Nogueira
name: Mendonça, Elizabete De Castro
name: Desirree Dos Reis Santos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: O objeto de estudo do presente artigo é um dos principais eixos de atuação do Museu do Samba: o Programa Memória das Matrizes do Samba no Rio de Janeiro. Esteprograma tem como meta o desenvolvimento de uma coleção de história oral do samba com fontes primárias produzidas por meio do registro das falas dos sambistas.Analisaremos a construção dessa coleção no processo de salvaguarda das matrizes do samba, visando especificar como a recolha das histórias orais dos sambistas cariocaspotencializam a disseminação de saberes, valorização dos mestres, sentimento de pertencimento, protagonismo social para além da esfera das políticas culturais tornando o museu um lugar social de práticas de advocacy. Para tal análise, o trabalho está dividido em tópicos, a saber: o primeiro apresenta o processo de patrimonialização e asações de salvaguarda do samba no Rio de Janeiro; o segundo aborda a constituição de uma coleção sobre as histórias orais dos sambistas como parte do acervo do Museu do Samba; o último ressalta o papel do museu no desenvolvimento de ações que permitem ouvir e registrar as memórias subterrâneas dos sambistas cariocas e na participação destes na gestão do processo de salvaguarda.
Referência eletrônica do artigo:
NOGUEIRA, Nilcemar; MENDONÇA, Elizabete de Castro; SANTOS, Desirree Reis. História oral na coleção do Museu do Samba: registrar para salvaguardar. In: Encontro de Estudos Multidisciplinares em Cultura, n. XV, 2019, Salvador. Anais do XV Enecult. Salvador: Universidade Federal da Bahia, 2019, v.1, p. 1-15. ISSN 2318-4035. Disponível em: . Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12510179
XMM-Newton observations of the interacting galaxy pairs NGC7771/0 and NGC2342/1
Creators: name: Jenkins, L. P.
name: Roberts, T. P.
name: Ward, M. J.
name: Zezas, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present XMM-Newton X-ray observations of the interacting galaxy pairs NGC7771/7770 and NGC2342/2341. In NGC7771, for the first time we are able to resolve the X-ray emission into a bright central source (L(X)~10^41 erg/s), plus two (L(X)>10^40 erg/s) ultraluminous X-ray sources (ULXs) located either end of the bar. The soft emission of the central source is well-modelled by a two-temperature thermal plasma with kT=0.4/0.7 keV. The hard emission is modelled with a flat absorbed power-law (Gamma~1.7, NH~10^22 cm^2), and this together with a low-significance (1.7 sigma) ~300 eV equivalent width emission line at ~6 keV are the first indications that NGC7771 may host a low-luminosity AGN. For the bar ULXs, a power-law fit to X-1 is improved at the 2.5 sigma level with the addition of a thermal plasma component (kT~0.3 keV), while X-2 is improved only at the 1.3 sigma level with the addition of a disc blackbody component with T(in)~0.2 keV. Both sources are variable on short time-scales implying that their emission is dominated by single accreting X-ray binaries (XRBs). The three remaining galaxies, NGC7770, NGC2342 and NGC2341, have observed X-ray luminosities of 0.2, 1.8 & 0.9x10^41 erg/s respectively (0.3-10 keV). Their integrated spectra are also well-modelled by multi-temperature thermal plasma components with kT=0.2-0.7 keV, plus power-law continua with slopes of Gamma=1.8-2.3 that are likely to represent the integrated emission of populations of XRBs as observed in other nearby merger systems. A comparison with other isolated, interacting and merging systems shows that all four galaxies follow the established correlations for starburst galaxies between X-ray, far-infrared and radio luminosities, demonstrating that their X-ray outputs are dominated by their starburst components.
description: 15 pages,7 figures. Accepted for publication in MNRAS
Acoustic corner states in topological insulators with built-in Zeeman-like fields
Creators: name: Huang, Xueqin
name: Lu, Jiuyang
name: Yan, Zhongbo
name: Yan, Mou
name: Deng, Weiyin
name: Chen, Gang
name: Liu, Zhengyou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The higher-order topological insulators (HOTIs), with such as the topological corner states, emerge as a thriving topic in the field of topological physics. But few connections have been found for the HOTIs with the well explored first-order topological insulators described by the Z_2 index. However, most recently, a proposal asserts that a significant bridge can be established between the HOTIs and the Z_2 topological insulators. When subject to an in-plane Zeeman field, the corner states, the signature of the HOTIs, can be induced in a Z_2 topological insulator. Such Zeeman field can be produced, for example, by the ferromagnetic proximity effect or magnetic atom doping, which obviously involves the drastically experimental complexity. Here we show that, a phononic crystal, designed as a bilayer of coupled acoustic cavities, hosts exactly the Kane-Mele model with built-in in-plane Zeeman fields. We observe that the helical edge states along the zigzag edges are gapped, and the corner states, localized spatially at the corners of the samples, appear in the gap, confirming the effect induced by the Zeeman field. We further demonstrate the intriguing contrast properties of the corner states at the outer and inner corners in a hexagonal ring-shaped sample.
Comparative advantage of potato production in seven regions of South Africa
Creators: name: Joubert, Christo J.
name: Phahlane, N.H.
name: Jooste, Andre
name: Dempers, C.
name: Kotze, Louise
name: Joubert, Christo J.
name: Phahlane, N.H.
name: Jooste, Andre
name: Dempers, C.
name: Kotze, Louise
Publisher: name: Unknown
Year: 2010
Subjects: Crop Production/Industries

description: The focus of this research was to investigate the comparative advantage of the potato industry in seven potato production regions in South Africa. Potatoes are the most important vegetable crop produced in South Africa. In 2008 it contributed more than 40% to the total production of vegetables in South Africa and it accounted for more than 20% of the value of all fresh produce sold on all the major national fresh produce markets. This study uses the Resource Cost Ratio (RCR) methodology that provides an explicit indication of the efficiency with which production alternatives uses domestic resources to generate or save foreign exchange. The Nominal Protection Ratio (NPR) and Effective Protection Coefficient (EPC) were also calculated. The results show that current policies that affects the input market for potato production in South Africa is constraining the potato industry. This was confirmed by the results obtained from the NPR and EPC analysis, and the size of the policy distortions was shown through the calculation of market and economic profitability. If current policies prevail potato production in the Eastern Free State will not have a comparative advantage, but in the absence of such policies all production regions have a comparative advantage.
Inconsistency of the MLE for the joint distribution of interval censored survival times and continuous marks
Creators: name: Maathuis, Marloes H.
name: Wellner, Jon A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G05, 62G20, 62N02 (primary), 62H12 (secondary)

description: This paper considers the nonparametric maximum likelihood estimator (MLE) for the joint distribution function of an interval censored survival time and a continuous mark variable. We provide a new explicit formula for the MLE in this problem. We use this formula and the mark specific cumulative hazard function of Huang and Louis (1998) to obtain the almost sure limit of the MLE. This result leads to necessary and sufficient conditions for consistency of the MLE which imply that the MLE is inconsistent in general. We show that the inconsistency can be repaired by discretizing the marks. Our theoretical results are supported by simulations.
description: 27 pages, 4 figures
3rd Webinar of GraspOS: PEP-CV– Peer Mentoring and Narrative CVs: A New Paradigm in Academic Recognition
Creators: name: Sapcariu, Sean
name: Khurana, Pooja
Publisher: name: Zenodo
Year: 2025
Subjects: PEP-CV
Peer Mentoring
Narrative CVs

description: Slides of the 3rd Webinar of GraspOS: PEP-CV– Peer Mentoring and Narrative CVs: A New Paradigm in Academic Recognition.

The session begun with an overview of the key features of PEP-CV and its role. Participants gained a clear understanding of Narrative CVs, their applications, and how PEP-CV facilitates CV development and research culture reform through peer mentorship.

Event details:Date: February 11, 2025 | 11:00-12:30 CETPresenters: Pooja Khurana (she/her) (Marie Curie Alumni Association MCAA) & Sean Sapcariu (he/him) (Luxembourg National Research Fund FNR)Moderator: Angeliki Tzouganatou (OpenAIRE)
Cyclic Bayesian Attack Graphs: A Systematic Computational Approach
Creators: name: Matthews, Isaac
name: Mace, John
name: Soudjani, Sadegh
name: van Moorsel, Aad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Attack graphs are commonly used to analyse the security of medium-sized to large networks. Based on a scan of the network and likelihood information of vulnerabilities, attack graphs can be transformed into Bayesian Attack Graphs (BAGs). These BAGs are used to evaluate how security controls affect a network and how changes in topology affect security. A challenge with these automatically generated BAGs is that cycles arise naturally, which make it impossible to use Bayesian network theory to calculate state probabilities. In this paper we provide a systematic approach to analyse and perform computations over cyclic Bayesian attack graphs. %thus providing a generic approach to handle cycles as well as unifying the theory of Bayesian attack graphs. Our approach first formally introduces two commonly used versions of Bayesian attack graphs and compares their expressiveness. We then present an interpretation of Bayesian attack graphs based on combinational logic circuits, which facilitates an intuitively attractive systematic treatment of cycles. We prove properties of the associated logic circuit and present an algorithm that computes state probabilities without altering the attack graphs (e.g., remove an arc to remove a cycle). Moreover, our algorithm deals seamlessly with all cycles without the need to identify their types. A set of experiments using synthetically created networks demonstrates the scalability of the algorithm on computer networks with hundreds of machines, each with multiple vulnerabilities.