cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Public prevention plans to manage climate change and respiratory allergic diseases. Innovative models used in Campania Region (Italy): the twinning Aria implementation and the allergy safe tree: decalogue
Creators: name: Patella, Vincenzo
name: Florio, Giovanni
name: Magliacane, Diomira
name: Giuliano, Ada
name: Russo, Laura Filomena
name: D’Amato, Valeria
name: De Luca, Vincenzo
name: Iaccarino, Guido
name: Illario, Maddalena
name: Bousquet, Jean
Publisher: name: Universita' degli Studi di Salerno
Year: 2019
Subjects: Allergic rhinitis
Air pollution
Asthma
Climate change
Health innovation programs
Public health

description: In recent years, climate change has been influenced by air pollution, and this destructive combination has justifiably sounded an alarm for nations and many institutional bodies worldwide. Official reports state that the emission of greenhouse gases produced by human activity are growing, and consequently also the average temperature. The World Health Organization (WHO) believes that health effects expected in the future due to climate change will be dramatic, and has invited international groups to investigate potential remedies. A task force has been established by the Italian Society of Allergology, Asthma and Clinical Immunology (SIAAIC), with the aim to actively work on correlation between pollution and climate change. The Task Force provided prevention tools to suggest city leaders how to improve the health conditions of allergic people in public urban parks. The “Allergy Safe Tree Decalogue” suggests the preparation and maintenance of public low allergyimpact greenery. Through the Twinning ARIA project, the Division for the Promotion and Enhancement of Health Innovation Programs of Campania Region (Italy), sought to promote the implementation of the project in the regional Health System. The main objective will be to investigate the current use and usefulness of mobile phone Apps in the management of allergic respiratory disease, through Mobile Airways Sentinel networK (MASK), the Phase 3 of the ARIA initiative, based on the freely available MASK App (the Allergy Diary, Android and iOS platforms). The effects of these prevention activities will be registered and compared with monitoring efforts thanks to the Aerobiology Units, located throughout the Campania area. A joint effort between researchers and public administrations for the implementation of prevention plans coherently with the two models proposed in a specific area, i.e. the Decalogue for public administrations and the MASK Allergy Diary app for individual patients suffering from allergy, will be implemented as a pilot.
Window function convolution with deep neural network models
Creators: name: Alkhanishvili, Davit
name: Porciani, Cristiano
name: Sefusatti, Emiliano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Traditional estimators of the galaxy power spectrum and bispectrum are sensitive to the survey geometry. They yield spectra that differ from the true underlying signal since they are convolved with the window function of the survey. For the current and future generations of experiments, this bias is statistically significant on large scales. It is thus imperative that the effect of the window function on the summary statistics of the galaxy distribution is accurately modelled. Moreover, this operation must be computationally efficient in order to allow sampling posterior probabilities while performing Bayesian estimation of the cosmological parameters. In order to satisfy these requirements, we built a deep neural network model that emulates the convolution with the window function, and we show that it provides fast and accurate predictions. We trained (tested) the network using a suite of 2000 (200) cosmological models within the cold dark matter scenario, and demonstrate that its performance is agnostic to the precise values of the cosmological parameters. In all cases, the deep neural network provides models for the power spectra and the bispectrum that are accurate to better than 0.1 per cent on a timescale of 10 $μ$s.
description: 5 pages, 3 figures. Accepted to A&A for publication
Flow dynamics and magnetic induction in the von-Karman plasma experiment
Creators: name: Plihon, Nicolas
name: Bousselin, Guillaume
name: Palermo, Francesco
name: Morales, Jorge A.
name: Bos, Wouter
name: Godeferd, Fabien S.
name: Bourgoin, Mickaël
name: Pinton, Jean-François
name: Moulin, M.
name: Aanesland, Ane
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The von-Karman plasma experiment is a novel versatile experimental device designed to explore the dynamics of basic magnetic induction processes and the dynamics of flows driven in weakly magnetized plasmas. A high-density plasma column (10^16 - 10^19 particles.m^-3) is created by two radio-frequency plasma sources located at each end of a 1 m long linear device. Flows are driven through JxB azimuthal torques created from independently controlled emissive cathodes. The device has been designed such that magnetic induction processes and turbulent plasma dynamics can be studied from a variety of time-averaged axisymmetric flows in a cylinder. MHD simulations implementing volume-penalization support the experimental development to design the most efficient flow-driving schemes and understand the flow dynamics. Preliminary experimental results show that a rotating motion of up to nearly 1 km/s is controlled by the JxB azimuthal torque.
Reversible time-step adaptation for the integration of few-body systems
Creators: name: Boekholt, Tjarda C. N.
name: Vaillant, Timothee
name: Correia, Alexandre C. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The time step criterion plays a crucial role in direct N-body codes. If not chosen carefully, it will cause a secular drift in the energy error. Shared, adaptive time step criteria commonly adopt the minimum pairwise time step, which suffers from discontinuities in the time evolution of the time step. This has a large impact on the functioning of time step symmetrisation algorithms. We provide new demonstrations of previous findings that a smooth and weighted average over all pairwise time steps in the N-body system, improves the level of energy conservation. Furthermore, we compare the performance of 27 different time step criteria, by considering 3 methods for weighting time steps and 9 symmetrisation methods. We present performance tests for strongly chaotic few-body systems, including unstable triples, giant planets in a resonant chain, and the current Solar System. We find that the harmonic symmetrisation methods (methods A3 and B3 in our notation) are the most robust, in the sense that the symmetrised time step remains close to the time step function. Furthermore, based on our Solar System experiment, we find that our new weighting method based on direct pairwise averaging (method W2 in our notation), is slightly preferred over the other methods.
description: Accepted by MNRAS. 13 pages, 6 figures
COHERENT production of a dark fermion
Creators: name: Candela, Pablo M.
name: De Romeri, Valentina
name: Papoulias, Dimitrios K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the possible production of a new MeV-scale fermion at the COHERENT experiment. The new fermion, belonging to a dark sector, can be produced through the up-scattering process of neutrinos off the nuclei and the electrons of the detector material, via the exchange of a light vector or scalar mediator. We perform a detailed statistical analysis of the combined COHERENT CsI and LAr data sets and obtain up-to-date constraints on the couplings and masses of the dark fermion and mediators. We finally briefly comment about the stability of the dark fermion.
description: 26 pages, 10 figures, 1 table; typos corrected, references added
The Possible Tidal Demise of Kepler's First Planetary System
Creators: name: Vissapragada, Shreyas
name: Chontos, Ashley
name: Greklek-McKeon, Michael
name: Knutson, Heather A.
name: Dai, Fei
name: González, Jorge Pérez
name: Grunblatt, Sam
name: Huber, Daniel
name: Saunders, Nicholas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present evidence of tidally-driven inspiral in the Kepler-1658 (KOI-4) system, which consists of a giant planet (1.1$R_\mathrm{J}$, 5.9$M_\mathrm{J}$) orbiting an evolved host star (2.9$R_\odot$, 1.5$M_\odot$). Using transit timing measurements from Kepler, Palomar/WIRC, and TESS, we show that the orbital period of Kepler-1658b appears to be decreasing at a rate $\dot{P} = 131_{-22}^{+20}$~ms~yr$^{-1}$, corresponding to an infall timescale $P/\dot{P}\approx2.5$~Myr. We consider other explanations for the data including line-of-sight acceleration and orbital precession, but find them to be implausible. The observed period derivative implies a tidal quality factor $Q_\star' = 2.50_{-0.62}^{+0.85}\times10^4$, in good agreement with theoretical predictions for inertial wave dissipation in subgiant stars. Additionally, while it probably cannot explain the entire inspiral rate, a small amount of planetary dissipation could naturally explain the deep optical eclipse observed for the planet via enhanced thermal emission. As the first evolved system with detected inspiral, Kepler-1658 is a new benchmark for understanding tidal physics at the end of the planetary life cycle.
description: 9 pages, 3 figures, 2 tables, published in Astrophysical Journal Letters
Sharp $L^p$-bounds for the wave equation on groups of Heisenberg type
Creators: name: Müller, Detlef
name: Seeger, Andreas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 42B15, 43A80, 35L05, 35S30

description: Consider the wave equation associated with the Kohn Laplacian on groups of Heisenberg type. We construct parametrices using oscillatory integral representations and use them to prove sharp $L^p$ and Hardy space regularity results.
Comparing the Locations of Supernovae to CO (2-1) Emission in their Host Galaxies
Creators: name: Chen, Ness Mayker
name: Leroy, Adam K.
name: Lopez, Laura A.
name: Benincasa, Samantha
name: Chevance, Mélanie
name: Glover, Simon C. O.
name: Hughes, Annie
name: Kreckel, Kathryn
name: Sarbadhicary, Sumit
name: Sun, Jiayi
name: Thompson, Todd A.
name: Utomo, Dyas
name: Bigiel, Frank
name: Blanc, Guillermo A.
name: Dale, Daniel A.
name: Grasha, Kathryn
name: Kruijssen, J. M. Diederik
name: Pan, Hsi-An
name: Querejeta, Miguel
name: Schinnerer, Eva
name: Watkins, Elizabeth J.
name: Williams, Thomas G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We measure the molecular gas environment near recent ($< 100$ yr old) supernovae (SNe) using $\sim1''$ or $\leq 150$pc resolution CO (2-1) maps from the PHANGS-ALMA survey of nearby star-forming galaxies. This is arguably the first such study to approach the scales of individual massive molecular clouds ($M_{\rm mol} \gtrsim 10^{5.3}$ M$_{\odot}$). Using the Open Supernova Catalog (OSC), we identify 63 SNe within the PHANGS-ALMA footprint. We detect CO (2-1) emission near $\sim60\%$ of the sample at 150pc resolution, compared to $\sim35\%$ of map pixels with CO (2-1) emission, and up to $\sim95\%$ of the SNe at 1kpc resolution compared to $\sim80\%$ of map pixels with CO (2-1) emission. We expect the $\sim60\%$ of SNe within the same 150pc beam as a GMC will likely interact with these clouds in the future, consistent with the observation of widespread SN-molecular gas interaction in the Milky Way, while the other $\sim40\%$ of SNe without strong CO (2-1) detections will deposit their energy in the diffuse interstellar medium (ISM), perhaps helping drive large-scale turbulence or galactic outflows. Broken down by type, we detect CO (2-1) emission at the sites of $\sim85\%$ of our 9 stripped-envelope SNe (SESNe), $\sim40\%$ of our 34 Type II SNe, and $\sim35\%$ of our 13 Type Ia SNe, indicating that SESNe are most closely associated with the brightest CO (2-1) emitting regions in our sample. Our results confirm that SN explosions are not restricted to only the densest gas, and instead exert feedback across a wide range of molecular gas densities.
description: Accepted to ApJ; 38 pages, 12 figures, 7 tables in two-column AASTEX63 format
Does the i-process operate at nearly solar metallicity?
Creators: name: Karinkuzhi, D.
name: Van Eck, S.
name: Goriely, S.
name: Siess, L.
name: Jorissen, A.
name: Choplin, A.
name: Escorza, A.
name: Shetye, S.
name: Van Winckel, H.
name: .
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A sample of 895 s-process-rich candidates has been found among the 454180 giant stars surveyed by LAMOST at low spectral resolution (R~1800). In a previous study, taking advantage of the higher resolution (R~86 000) offered by the the HERMES-Mercator spectrograph, we performed the re-analysis of 15 among the brightest stars of this sample. Among these 15 program stars, having close-to-solar metallicities, 11 showed mild to strong heavy element overabundances. The nucleosynthesis process(es) at the origin of these overabundances were however not questioned in our former study. We derive the abundances in s- and r-process elements of the 15 targets in order to investigate whether some stars also show an i-process signature, as sometimes found in their lower metallicity counterparts (namely, the Carbon-Enhanced Metal-Poor (CEMP)-rs stars). Abundances are derived from the high-resolution HERMES spectra for Pr, Nd, Sm, and Eu, using the TURBOSPECTRUM radiative transfer LTE code with MARCS model atmospheres. Using the new classification scheme proposed in our recent study we find that two stars show overabundances in both s- and r-process elements well above the level expected from the Galactic chemical evolution, an analogous situation to the one of CEMP-rs stars at lower metallicities. We compare the abundances of the most enriched stars with the nucleosynthetic predictions from the STAREVOL stellar evolutionary code and find abundances compatible with an i-process occurring in AGB stars. Despite a larger number of heavy elements to characterize the enrichment pattern, the limit between CEMP-s and CEMP-rs stars remains fuzzy. It is however interesting to note that an increasing number of extrinsic stars are found to have abundances better reproduced by an i-process pattern even at close-to-solar metallicities.
description: Accepted for publication in A&A, 9 pages, 9 figures including the two in appendix
Transport and optical properties of warm dense aluminum in the two-temperature regime: Ab initio calculation and semiempirical approximation
Creators: name: Knyazev, D. V.
name: Levashov, P. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This work is devoted to the investigation of transport and optical properties of liquid aluminum in the two-temperature case. At first optical properties, static electrical and thermal conductivities were obtained in the \textit{ab initio} calculation. The \textit{ab initio} calculation is based on the quantum molecular dynamics, density functional theory and the Kubo-Greenwood formula. The semiempirical approximation was constructed based on the results of the \textit{ab initio} caculation. The approximation yields the dependences $σ_{1_\mathrm{DC}}\propto1/T_i^{0.25}$ and $K\propto T_e/T_i^{0.25}$ for the static electrical conductivity and thermal conductivity, respectively. The approximation is valid for liquid aluminum at $ρ=2.70$~g/cm$^3$, 3~kK~$\leq T_i\leq T_e\leq20$~kK. Our results are well described by the Drude model with the effective relaxation time $τ\propto T_i^{-0.25}$. We have compared our results with a number of other models. They are all reduced in the low-temperature limit to the Drude model with different expressions for the relaxation time $τ$. Our results are not consistent with the models in which $τ\propto T_i^{-1}$ and support the models which use the expressions with the slower decrease of the relaxation time.
description: 15 pages, 10 figures
Response of a uniformly accelerated detector to massless Rarita-Schwinger fields in vacuum
Creators: name: Li, Qinglin
name: Yu, Hongwei
name: Zhou, Wenting
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the response of a uniformly accelerated detector modeled by a two-level atom nonlinearly coupled to vacuum massless Rarita-Schwinger fields. We first generalize the formalism developed by Dalibard, Dupont-Roc, and Cohen-Tannoudji in the linear coupling case, and we then calculate the mean rate of change of the atomic energy of the accelerated atom. Our result shows that a uniformly accelerated atom in its ground state interacting with vacuum Rarita-Schwinger field fluctuations would spontaneously transition to an excited state and the unique feature in contrast to the case of the atom coupled to the scalar, electromagnetic and Dirac fields is the appearance of terms in the excitation rate which are proportional to the sixth and eighth powers of acceleration.
description: 12 pages, no figures
Decision Making in the Oilseed Processing Industry
Creators: name: Doty, Harry O.
name: Doty, Harry O.
Publisher: name: Unknown
Year: 1975
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies

description: Speech presented at the 21st Annual Conference of Cooperative Soybean and Cottonseed Oil Mills, Las Vegas, Nevada, March 10, 1975.
Reconstructing Orbits of Galaxies in Extreme Regions (ROGER) III: galaxy evolution patterns in projected phase space around massive X-ray clusters
Creators: name: Martinez, Hector J.
name: Coenda, Valeria
name: Muriel, Hernan
name: Rios, Martin de los
name: Ruiz, Andres N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the ROGER code by de los Rios et al. to classify galaxies around a sample of X-ray clusters into five classes according to their positions in the projected phase space diagram: cluster galaxies, backsplash galaxies, recent infallers, infalling galaxies, and interlopers. To understand the effects of the cluster environment to the evolution of galaxies, we compare across the five classes: stellar mass, specific star formation rate, size, and morphology. Following the guidelines of Coenda et al., a separate analysis is carried out for red and blue galaxies. For red galaxies, cluster galaxies differ from the other classes, having a suppressed specific star formation rate, smaller sizes, and are more likely to be classified as ellipticals. Differences are smaller between the other classes, however backsplash galaxies have significantly lower specific star formation rates than early or recent infalling galaxies. For blue galaxies, we find evidence that recent infallers are smaller than infalling galaxies and interlopers, while the latter two are comparable in size. Our results provide evidence that, after a single passage, the cluster environment can diminish a galaxy's star formation, modify its morphology, and can also reduce in size blue galaxies. We find evidence that quenching occurs faster than morphological transformation from spirals to ellipticals for all classes. While quenching is evidently enhanced as soon as galaxies get into clusters, significant morphological transformations require galaxies to experience the action of the physical mechanisms of the cluster for longer timescales.
description: Accepted in MNRAS, 11 pages, 7 figures
Random walk for elliptic equations and boundary layer
Creators: name: Milstein, Grigori N.
Publisher: name: Weierstrass Institute
Year: 1996
Subjects: subject: Boundary value problem
subject: weak methods of numerical integration of SDE
subject: random walk
subject: boundary layer
subject: 35J25
subject: 60J15
subject: 65N99

description: We consider the Dirichlet problem for equations of elliptic type in a domain G with a boundary ∂G. A probabilistic representation of solutions to the problem is connected with a system of stochastic differential equations (SDE). Unlike usual approximation of SDE when a time-discretization is exploited, here a space-discretization is recommended. We construct weak approximations for which an estimate of their errors contains derivatives of the required solution to the Dirichlet problem only of lower order. In particular, it is important for problems with a boundary layer. We simulate a Markov chain in G on the basis of a one-step approximation using variable step in the space. The chain should be stopped entering a sufficiently small neighborhood of the boundary ∂G. We estimate the average number of steps before stopping and state some convergence theorems.
Magnetic domain-wall motion twisted by nanoscale probe-induced spin transfer
Creators: name: Wang, J.
name: Xie, L. S.
name: Wang, C. S.
name: Zhang, H. Z.
name: Shu, L.
name: Bai, J.
name: Chai, Y. S.
name: Zhao, X.
name: Nie, J. C.
name: Cao, C. B.
name: Gu, C. Z.
name: Xiong, C. M.
name: Sun, Y.
name: Shi, J.
name: Salahuddin, S.
name: Xia, K.
name: Nan, C. W.
name: Zhang, J. X.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A method for deterministic control of the magnetic order parameter using an electrical stimulus is highly desired for the new generation of spintronic and magnetoelectronic devices. Much effort has been focused on magnetic domain-wall motion manipulated by a successive injection of spin-polarized current into a magnetic nanostructure. However, an integrant high-threshold current density of 107~108 A/cm2 inhibits the integration of those nanostructures with low-energy-cost technology. In addition, a precise determination of the location of domain walls at nanoscale seems difficult in artificially manufactured nanostructures. Here we report an approach to manipulate a single magnetic domain wall with a perpendicular anisotropy in a manganite/dielectric/metal capacitor using a probe-induced spin displacement. A spin angular momentum transfer torque occurs in the strongly correlated manganite film during the spin injection into the capacitor from the nanoscale magnetized tip with an ultralow voltage of 0.1 V, where the threshold spin-polarized current density is ~104 A/cm2 at the tip/manganite interface. The probe-voltage-controlled domain wall motion in the capacitor demonstrates a critical framework for the fundamental understanding of the manipulation of the nano-magnet systems with low energy consumption.
P-modified Pd catalysts for hydrogenation of aromatic compounds for chemical hydrogen storage
Creators: name: Seitz, Adrian
name: Backes, Ian
name: Schühle, Patrick
Publisher: name: Zenodo
Year: 2023
Subjects: Phosphorous-modification
LOHC

description: Poster presented at EuropaCat 2023, Prague, 28.08.2023. Session: Catalyst design, novel catalytic materials.

Herein, a novel phosphorous modified Pd catalyst is presented, which shows superior productivity in the hydrogenation of the liquid organic hydrogen carrier (LOHC) benzyltoluene.
title: Seeking transparency : teachers’ understanding of transgender youth within school district #42 Maple Ridge/Pitt Meadows
Creators: name: Ferguson, Kathryn
Publisher: name: My University
Year: 2018

description: This research project explores teachers’ understandings of transgender students’ needs, support networks, and integration into the public high school system within School District #42: Maple Ridge/Pitt Meadows. Specifically, research addressed the institutional expectations and personal and professional pre-conceptions teachers have with regards to creating an inclusive school culture for transgender youth. Qualitative interviews were conducted to ascertain educators’ awareness of LGBTQ inclusive district and Ministry of Education policy and teachers,’ assessment of how inclusive their respective schools were, and an examination of the barriers impeding teachers from building safe spaces for trans youth. While most teachers acknowledged improvement in their schools’ acceptance of transgender students, there are many gaps apparent in universal understanding. Teachers are unclear of how to best accommodate and include trans youth within the exhaustive and changing curriculum, classroom practice and parental involvement, and general framework of their institutional environment which places impetus on administration to lead inclusion directives. Celebration of LGBTQ youth was evident at all high schools; however, a move from celebration to full inclusion has yet to occur. The interview findings also revealed a lack of professional development for educators that specifically pertains to supporting transgender students. Teachers are left somewhat stalled in moving toward a truly inclusive school culture that honours transgender students.
Metastable vacuum decay in center-stabilized Yang-Mills theory at large N
Creators: name: Li, Xin
name: Voloshin, M. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the rate of the decay of a metastable vacuum state in $SU(N)$ gauge theory on ${\mathbb R}^3 \times {\mathbb S}^1$ space with a double trace deformation suggested by Ünsal and Yaffe. The derived analytical expression for the exponential factor in the decay rate, including the dependence on the parameter $θ$, gives the exact behavior in the leading power of $N$ in the limit of large $N$ and provides a better approximation than a recently found in the literature numerical result.
description: 8 pages, 1 figure
National Research Data Infrastructure for Interdisciplinary Energy System Research
Creators: name: Nieße, Astrid
name: Ferenz, Stephan
name: Auer, Sören
name: German, Reinhard
name: Hagenmeyer, Veit
name: Lehnhoff, Sebastian
name: Liliestam, Johan
name: Monti, Antonello
name: Richter, Mascha
name: Vogel, Berthold
name: Weidlich, Anke
name: Weinhardt, Christof
Publisher: name: Zenodo
Year: 2022
Subjects: nfdi
research data management
energy research

description: nfdi4energy is a new consortium recommended for funding in the third and final funding round of the National Research Data Infrastructure (NFDI). It focuses on energy system research which heavily rely on modelling and (co-)simulation-based approaches. Tracking of models together with all data creates a complex software and data management challenge, which needs to be addressed in each research project. Therefore, the handling of research data and software presents a key motivation for nfdi4energy. To this end, nfdi4energy covers the whole research and transfer cycle of projects in energy system research ranging from (1) identifying relevant competencies for a research field; (2) defining relevant scenarios and experimental setup; (3) integrating models and data, coupling tools and laboratories; (4) extracting results, facilitating public consultation; to (5) identifying research challenges for follow-up activities. We define the following key objectives for nfdi4energy: (1) Establish common research community services for FAIR data, models, and processes in energy system research and motivate its use in the community. (2) Allow traceability, reproducibility, and transparency of results for the scientific community as well as for the society, improving the overall FAIRness. (3) Enable and motivate the involvement of society for the identification and solution of relevant research questions. (4) Promote better collaboration and knowledge transfer between scientific research institutes and business partners via FAIR research data management. (5) Simplify identification, integration, and coordination of simulation-based models. (6) Integrate the provided services for energy system research within the wider NFDI ecosystem to improve cross-domain collaboration. With our poster we would like to present the general ideas behind nfdi4nergy and discuss possible connection points to energy system research, especially reflecting the needs of the research community.
Architectural Vision for Quantum Computing in the Edge-Cloud Continuum
Creators: name: Furutanpey, Alireza
name: Barzen, Johanna
name: Bechtold, Marvin
name: Dustdar, Schahram
name: Leymann, Frank
name: Raith, Philipp
name: Truger, Felix
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum processing units (QPUs) are currently exclusively available from cloud vendors. However, with recent advancements, hosting QPUs is soon possible everywhere. Existing work has yet to draw from research in edge computing to explore systems exploiting mobile QPUs, or how hybrid applications can benefit from distributed heterogeneous resources. Hence, this work presents an architecture for Quantum Computing in the edge-cloud continuum. We discuss the necessity, challenges, and solution approaches for extending existing work on classical edge computing to integrate QPUs. We describe how warm-starting allows defining workflows that exploit the hierarchical resources spread across the continuum. Then, we introduce a distributed inference engine with hybrid classical-quantum neural networks (QNNs) to aid system designers in accommodating applications with complex requirements that incur the highest degree of heterogeneity. We propose solutions focusing on classical layer partitioning and quantum circuit cutting to demonstrate the potential of utilizing classical and quantum computation across the continuum. To evaluate the importance and feasibility of our vision, we provide a proof of concept that exemplifies how extending a classical partition method to integrate quantum circuits can improve the solution quality. Specifically, we implement a split neural network with optional hybrid QNN predictors. Our results show that extending classical methods with QNNs is viable and promising for future work.
description: 16 pages, 5 figures, Vision Paper
Enhancing R with Advanced Compilation Tools and Methods
Creators: name: Lang, Duncan Temple
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation (stat.CO)
subject: Mathematical Software (cs.MS)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: I describe an approach to compiling common idioms in R code directly to native machine code and illustrate it with several examples. Not only can this yield significant performance gains, but it allows us to use new approaches to computing in R. Importantly, the compilation requires no changes to R itself, but is done entirely via R packages. This allows others to experiment with different compilation strategies and even to define new domain-specific languages within R. We use the Low-Level Virtual Machine (LLVM) compiler toolkit to create the native code and perform sophisticated optimizations on the code. By adopting this widely used software within R, we leverage its ability to generate code for different platforms such as CPUs and GPUs, and will continue to benefit from its ongoing development. This approach potentially allows us to develop high-level R code that is also fast, that can be compiled to work with different data representations and sources, and that could even be run outside of R. The approach aims to both provide a compiler for a limited subset of the R language and also to enable R programmers to write other compilers. This is another approach to help us write high-level descriptions of what we want to compute, not how.
description: Published in at http://dx.doi.org/10.1214/13-STS462 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
VLTI status update: a decade of operations and beyond
Creators: name: Merand, Antoine
name: Abuter, Roberto
name: Aller-Carpentier, Emmanuel
name: Andolfato, Luigi
name: Alonso, Jaime
name: Berger, Jean-Philippe
name: Blanchard, Guillaume
name: Boffin, Henri
name: Bourget, Pierre
name: Bristow, Paul
name: Cid, Claudia
name: de Wit, Willem-Jan
name: del Valle, Diego
name: Delplancke-Stroebele, Franccoise
name: Derie, Frederic
name: Faundez, Lorena
name: Ertel, Steve
name: Grellmann, Rebekka
name: Gitton, Philippe
name: Glindemann, Andreas
name: Guajardo, Patricia
name: Guieu, Sylvain
name: Guisard, Stephane
name: Guniat, Serge
name: Haguenauer, Pierre
name: Herrera, Christian
name: Hummel, Christian
name: La Fuente, Carlos
name: Lopez, Marcelo
name: Mardones, Pedro
name: Morel, Sebastien
name: Mueller, Andre
name: Percheron, Isabelle
name: Duc, Than Phan
name: Pino, Andres
name: Poupar, Sebastien
name: Pozna, Eszter
name: Ramirez, Andres
name: Rengaswamy, Sridharan
name: Rivas, Lionel
name: Rivinius, Thomas
name: Segovia, Alex
name: Schmid, Christian
name: Schoeller, Markus
name: Schuhler, Nicolas
name: Woillez, Julien
name: Wittkowski, Markus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the latest update of the European Southern Observatory's Very Large Telescope interferometer (VLTI). The operations of VLTI have greatly improved in the past years: reduction of the execution time; better offering of telescopes configurations; improvements on AMBER limiting magnitudes; study of polarization effects and control for single mode fibres; fringe tracking real time data, etc. We present some of these improvements and also quantify the operational improvements using a performance metric. We take the opportunity of the first decade of operations to reflect on the VLTI community which is analyzed quantitatively and qualitatively. Finally, we present briefly the preparatory work for the arrival of the second generation instruments GRAVITY and MATISSE.
description: 10 pages, 7 figures, Proceedings of the SPIE, 9146-19
Waves in the lower solar atmosphere: the dawn of next-generation solar telescopes
Creators: name: Jess, David B.
name: Jafarzadeh, Shahin
name: Keys, Peter H.
name: Stangalini, Marco
name: Verth, Gary
name: Grant, Samuel D. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Waves and oscillations have been observed in the Sun's atmosphere for over half a century. While such phenomena have readily been observed across the entire electromagnetic spectrum, spanning radio to gamma-ray sources, the underlying role of waves in the supply of energy to the outermost extremities of the Sun's corona has yet to be uncovered. Of particular interest is the lower solar atmosphere, including the photosphere and chromosphere, since these regions harbor the footpoints of powerful magnetic flux bundles that are able to guide oscillatory motion upwards from the solar surface. As a result, many of the current- and next-generation ground-based and space-borne observing facilities are focusing their attention on these tenuous layers of the lower solar atmosphere in an attempt to study, at the highest spatial and temporal scales possible, the mechanisms responsible for the generation, propagation, and ultimate dissipation of energetic wave phenomena. Here, we present a two-fold review that is designed to overview both the wave analyses techniques the solar physics community currently have at their disposal, as well as highlight scientific advancements made over the last decade. Importantly, while many ground-breaking studies will address and answer key problems in solar physics, the cutting-edge nature of their investigations will naturally pose yet more outstanding observational and/or theoretical questions that require subsequent follow-up work. This is not only to be expected, but should be embraced as a reminder of the era of rapid discovery we currently find ourselves in. We will highlight these open questions and suggest ways in which the solar physics community can address these in the years and decades to come.
description: 198 pages, 67 figures, 794 references, accepted for publication as a Living Review in Solar Physics (LRSP)
Forced frequency locking in S1-equivariant differential equations
Creators: name: Peterhof, Daniela
name: Recke, Lutz
Publisher: name: Weierstrass Institute
Year: 1996
Subjects: subject: Forced symmetry breaking
subject: forced frequency locking
subject: bifurcation from solution orbits
subject: rotating waves
subject: modulated waves
subject: 58F35
subject: 34A47
subject: 34C25
subject: 34C27
subject: 34D35

description: The aim of this paper is to present a simple analytic stategy for predicting, or engineering, two frequency locking phenomena for S1-equivariant ordinary differential equations. First we consider the forced frequency locking of a rotating wave solution of the unforced equation with a forcing of "rotating wave type", and we describe the creation of modulated wave solutions which is connected with this locking phenomenon. And second, we consider the forced frequency locking of a modulated wave solution with a forcing of "modulated wave type". Especially, we describe the sets of all control parameters and of all forcings such that frequency locking occures, the dynamic stability and the asymptotic behavior (for the forcing intensity tending to zero) of the locked solutions and the structural stability of all the phenomena. This paper is essentially founded on results from our previous work [41] concerning abstract forced symmetry breaking. The equations considered in the present paper are finite dimensional prototypes of certain infinite dimensional models describing the behavior of continuous wave operated or self-pulsating multisection DFB lasers under continuous or pulsating light injection, respectively.
Microbiology Instructor Guide: "Understanding Fungi: Exploring Fungal Infections, Health Hazards, and Preventative Strategies through Case Studies"
Creators: name: Mehrotra, Dr
Publisher: name: QUBES Educational Resources
Year: 2025

description: Fungi are diverse eukaryotic organisms that can exist as yeasts or molds and play significant roles in various ecosystems. Fungal infections can be classified as primary or opportunistic, with the latter affecting individuals with weakened immune systems, leading to serious health complications. Common fungal infections include athlete's foot, candidiasis, and aspergillosis, which can arise from direct contact or inhalation of spores. In some cases, fungi outbreak can happen in research laboratories including forensic laboratory. Preventative measures focus on maintaining proper hygiene and avoiding environments conducive to fungal growth, following procedures, as well as utilizing antifungal treatments when necessary to mitigate health risks associated with these infections.
Quality-of-Data for Consistency Levels in Geo-replicated Cloud Data Stores
Creators: name: García-Recuero, Álvaro
name: Esteves, Sérgio
name: Veiga, Luís
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Cloud computing has recently emerged as a key technology to provide individuals and companies with access to remote computing and storage infrastructures. In order to achieve highly-available yet high-performing services, cloud data stores rely on data replication. However, providing replication brings with it the issue of consistency. Given that data are replicated in multiple geographically distributed data centers, and to meet the increasing requirements of distributed applications, many cloud data stores adopt eventual consistency and therefore allow to run data intensive operations under low latency. This comes at the cost of data staleness. In this paper, we prioritize data replication based on a set of flexible data semantics that can best suit all types of Big Data applications, avoiding overloading both network and systems during large periods of disconnection or partitions in the network. Therefore we integrated these data semantics into the core architecture of a well-known NoSQL data store (e.g., HBase), which leverages a three-dimensional vector-field model (regarding timeliness, number of pending updates and divergence bounds) to provision data selectively in an on-demand fashion to applications. This enhances the former consistency model by providing a number of required levels of consistency to different applications such as, social networks or e-commerce sites, where priority of updates also differ. In addition, our implementation of the model into HBase allows updates to be tagged and grouped atomically in logical batches, akin to transactions, ensuring atomic changes and correctness of updates as they are propagated.
description: IEEE CloudCom 2013, Bristol, UK
Additional file 1 of Postnatal care education in health facilities in Accra, Ghana: perspectives of mothers and providers
Creators: name: Owen, Medge D.
name: Colburn, Elizabeth
name: Tetteh, Cecilia
name: Srofenyoh, Emmanuel K.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer

description: Additional file 1.
Cell resolved, multiparticle model of plastic tissue deformations and morphogenesis
Creators: name: Czirok, Andras
name: Isai, Dona Greta
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We propose a three dimensional mechanical model of embryonic tissue dynamics. Mechanically coupled adherent cells are represented as particles interconnected with elastic beams which can exert non-central forces and torques. Tissue plasticity is modeled by a stochastic process consisting of a connectivity change (addition or removal of a single link) followed by a complete relaxation to mechanical equilibrium. In particular, we assume that (i) two non-connected, but adjacent particles can form a new link; and (ii) the lifetime of links is reduced by tensile forces. We demonstrate that the proposed model yields a realistic macroscopic elasto-plastic behavior and we establish how microscopic model parameters affect the material properties at the macroscopic scale. Based on these results, microscopic parameter values can be inferred from tissue thickness, macroscopic elastic modulus and the magnitude and dynamics of intercellular adhesion forces. In addition to their mechanical role, model particles can also act as active simulation agents and modulate their connectivity according to specific rules. As an example, anisotropic link insertion and removal probabilities can give rise to local cell intercalation and large scale convergent extension movements. The proposed stochastic simulation of cell activities yields fluctuating tissue movements which exhibit the same autocorrelation properties as empirical data from avian embryos.
Idealkristalle als Abelsche Varietäten
Creators: name: Krause, Udo
Publisher: name: Weierstrass Institute
Year: 1996
Subjects: subject: 14K25
subject: 22E70
subject: 35Q40
subject: 81Q10
subject: 82D25

description: Es wird gezeigt, daß sich Idealkristalle in natürlicher Weise als hauptpolarisierte Abelsche Varietäten darstellen lassen. Es existiert demzufolge auf Λ × Λ eine ganzzahlige schiefsymmetrische Matrix E: Λ × Λ → ℤ, deren Elementarteiler sämtlich gleich 1 sind, wobei Λ das Translationsgitter des Idealkristalls im Phasenraum V ist. Bezüglich derartiger Gitter kann die Gitterdarstellung der Heisenberggruppe definiert werden oder mit anderen Worten: Auf einer hauptpolarisierten Abelschen Varietät kann nichtrelativistische Quantenmechanik betrieben werden. Die Gitterdarstellung wird detailliert betrachtet. Der harmonische Oszillator wird in der Gitterdarstellung berechnet und illustriert. Es zeigt sich, daß die Eigenfunktionen des harmonischen Oszillators in der Gitterdarstellung systematisch aus der mit einem Exponentialfaktor multiplizierten Riemannschen Thetafunktion für die zugrundeliegende hauptpolarisierte Abelsche Varietät hervorgehen. Die vollständigen Eigenfunktionensysteme der Impuls- sowie der Ortsoperatoren werden in der Gitterdarstellung aufgestellt und führen zu einer deutlichen Verbesserung des Galerkinverfahrens für die Berechnung der Bandstruktur des Kristallelektrons.
The radial gradient of the near-surface shear layer of the Sun
Creators: name: Barekat, Atefeh
name: Schou, Jesper
name: Gizon, Laurent
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Helioseismology has provided unprecedented information about the internal rotation of the Sun. One of the important achievements was the discovery of two radial shear layers: one near the bottom of the convection zone (the tachocline) and one near the surface. These shear layers may be important ingredients for explaining the magnetic cycle of the Sun. We measure the logarithmic radial gradient of the rotation rate ($\rm d\lnΩ/\rm d\ln r$) near the surface of the Sun using 15 years of f mode rotational frequency splittings from the Michelson Doppler Imager (MDI) and four years of data from the Helioseismic and Magnetic Imager (HMI). We model the angular velocity of the Sun in the upper $\sim 10$ Mm as changing linearly with depth and use a multiplicative optimally localized averaging inversion to infer the gradient of the rotation rate as a function of latitude. Both the MDI and HMI data show that $\rm d\lnΩ/\rm d\ln r$ is close to $-1$ from the equator to 60$^{\circ}$ latitude and stays negative up to 75$^{\circ}$ latitude. However, the value of the gradient is different for MDI and HMI for latitudes above $60^{\circ}$. Additionally, there is a significant difference between the value of $d\lnΩ/d\ln r$ using an older and recently reprocessed MDI data for latitudes above $30^\circ$. We could reliably infer the value of $\rm d\lnΩ/\rm d\ln r$ up to 60$^{\circ}$, but not above this latitude, which will hopefully constrain theories of the near-surface shear layer and dynamo. Furthermore, the recently reprocessed MDI splitting data are more reliable than the older versions which contained clear systematic errors in the high degree f modes.
description: 4 pages, 5 figures, accepted for publication in A&A Letters
Additional file 2 of Postnatal care education in health facilities in Accra, Ghana: perspectives of mothers and providers
Creators: name: Owen, Medge D.
name: Colburn, Elizabeth
name: Tetteh, Cecilia
name: Srofenyoh, Emmanuel K.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer

description: Additional file 2.