cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Hierarchical Potential Energy Landscape of Screw Dislocation Motion in Refractory High-entropy Alloys
Creators: name: Wang, X.
name: Maresca, F.
name: Cao, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: High-entropy alloys (HEAs) with concentrated solid solutions are conceived to possess a rugged atomic and energy landscape in which dislocation motion necessarily proceeds to accommodate mechanical deformation. Fundamental questions remain as to how rough the energy landscape is and to what extent it can be influenced by the local ordering of their constituent elements. Here, we construct and report the potential energy landscape (PEL) governing screw dislocation motion in refractory HEAs that reveals a hierarchical and multilevel structure with a collection of small basins nested in large metabasin. This striking feature pertaining to HEAs exerts a trapping force and back stress on saddle point activations, retarding dislocation movement. By introducing chemical short-range order, the energy landscape is smoothed but skewed to different degrees that shifts the rate-liming process from kink-glide to kink-pair nucleation. The chemical disorder-roughened PEL in HEAs, analogous to structural disorder induced in metallic glasses, signifies the role of various barrier-hopping processes underlying the extraordinary mechanical behaviors of the two distinct groups of materials.
Critical time-dependent branching process modelling epidemic spreading with containment measures
Creators: name: Sun, Hanlin
name: Kryven, Ivan
name: Bianconi, Ginestra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: During the COVID pandemic, periods of exponential growth of the disease have been mitigated by containment measures that in different occasions have resulted in a power-law growth of the number of cases. The first observation of such behaviour has been obtained from 2020 late spring data coming from China by Ziff and Ziff in Ref. [1]. After this important observation the power-law scaling (albeit with different exponents) has also been observed in other countries during periods of containment of the spread. Early interpretations of these results suggest that this phenomenon might be due to spatial effects of the spread. Here we show that temporal modulations of infectivity of individuals due to containment measures can also cause power-law growth of the number of cases over time. To this end we propose a stochastic well-mixed Susceptible-Infected-Removed (SIR) model of epidemic spreading in presence of containment measures resulting in time-dependent infectivity and we explore the statistical properties of the resulting branching process at criticality. We show that at criticality it is possible to observe power-law growth of the number of cases with exponents ranging between one and two. Our asymptotic analytical results are confirmed by extensive Monte Carlo simulations. Although these results do not exclude that spatial effects might be important in modulating the power-law growth of the number of cases at criticality, this work shows that even well-mixed populations may already feature non-trivial power-law exponents at criticality.
description: 24 pages, 6 figures
Equilibrium parameters in coupled storage ring lattices and practical applications
Creators: name: Ziemann, Volker
name: Streun, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We calculate equilibrium emittances and damping times due to the emission of synchrotron radiation for coupled storage ring lattices by evaluating the projections of the commonly used synchrotron radiation integrals onto the normal modes of the coupled motion. Orbit distortion is included by calculating off-axis contributions to the radiation integrals. We provide explicit formulae for fast forward calculation, which have been implemented into the interactive lattice design code OPA.
description: 26 pages, 7 figures
A CRITICAL ASSESSMENT OF THE IMPACTS OF CLIMATE CHANGE ON ZAMBIA'S WATER RESOURCES
Creators: name: Kaonga, Victor
Publisher: name: unknown
Year: 2020
Subjects: subject: Water resources development--Environmental aspects
subject: Climatic changes
subject: Water resources development--Management

description: This study examines climate change's impact on water resource management in Zambia, an economy reliant on natural resource extraction, particularly water resources, for development and anti-poverty efforts. Using a deductive qualitative case study approach, it analyzes existing literature and incorporates hydrological data from climate modeling studies and the Water Resource Management Authority of Zambia. The findings reveal declining rainfall across Zambia due to climate change. Despite notable policy integration, rising global temperatures are likely to alter Zambia's rainfall patterns, leading to reduced water resources in Zambezi and Kafue basins. These changes will significantly affect the energy and agriculture sectors, necessitating a holistic approach to water resource sustainability.
Associations between fatigue and participation in young patients after severe traumatic brain injury
Creators: name: Doser, Karoline
name: Norup, Anne
Publisher: name: F1000Research
Year: 2016

description: Objectives: A traumatic brain injury (TBI) causes physical, cognitive and emotional impairments that can be temporary or long-lasting. Fatigue is a commonly described problem experienced after TBI and might have a large impact on the individual’s social life. Consequently, the aim of the current study was to:

	Investigate the level of participation and fatigue in young patients with severe TBI in the chronic phase, and
	Investigate associations between fatigue and participation.

Methods: Thirty-six individuals (75% male), who sustained a severe TBI between the age of 14-21, were contacted for a follow up assessment (Mean time since injury= 6.0 years; SD=3.7 years). The mean age at follow-up was 24.4 years (SD= 4.1 years). Main outcome measures were the Participation Assessment with Recombined Tools-Objective (PART-O17) assessing the level of participation in  Productivity, Social relations and Out and About and the Multidimensional Fatigue Inventory (MFI-20) assessing the level of fatigue in General, Physical and Mental Fatigue, Reduced Motivation and Reduced Activity.

Results: Significant higher levels of General Fatigue (t(35)=2,523, p=0.016) and Mental Fatigue (t(35)=2.667, p=0.012), and a significant lower level of participation (t(32)=-2.912, p=0.007) were found compared to normative samples using one-sample t-tests. Spearman correlations showed significant correlations between General Fatigue and Productivity (r= -0.455, p=0.008), indicating a higher level of fatigue was associated with lower level of participation.

Conclusion: Fatigue was negatively associated with participation in individuals with after severe TBI. Both, fatigue and lower level of participation can have an eminent impact on the young patients’ social interactions with peers and their community integration and lead to social isolation.
Supplementary document for High-speed detection of 1550 nm single photons with superconducting nanowire detectors - 6214961.pdf
Creators: name: Craiciu, Ioana
name: Korzh, Boris
name: Beyer, Andrew
name: Mueller, Andrew
name: Allmaras, Jason
name: Narvaez, Lautaro
name: Spiropulu, Maria
name: Bumble, Bruce
name: Lehner, Thomas
name: Wollman, Emma
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplemental Document
Technology Ethics in Action: Critical and Interdisciplinary Perspectives
Creators: name: Green, Ben
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This special issue interrogates the meaning and impacts of "tech ethics": the embedding of ethics into digital technology research, development, use, and governance. In response to concerns about the social harms associated with digital technologies, many individuals and institutions have articulated the need for a greater emphasis on ethics in digital technology. Yet as more groups embrace the concept of ethics, critical discourses have emerged questioning whose ethics are being centered, whether "ethics" is the appropriate frame for improving technology, and what it means to develop "ethical" technology in practice. This interdisciplinary issue takes up these questions, interrogating the relationships among ethics, technology, and society in action. This special issue engages with the normative and contested notions of ethics itself, how ethics has been integrated with technology across domains, and potential paths forward to support more just and egalitarian technology. Rather than starting from philosophical theories, the authors in this issue orient their articles around the real-world discourses and impacts of tech ethics--i.e., tech ethics in action.
Investigating Network Parameters in Neural-Network Quantum States
Creators: name: Nomura, Yusuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Recently, quantum-state representation using artificial neural networks has started to be recognized as a powerful tool. However, due to the black-box nature of machine learning, it is difficult to analyze what machine learns or why it is powerful. Here, by applying one of the simplest neural networks, the restricted Boltzmann machine (RBM), to the ground-state representation of the one-dimensional (1D) transverse-field Ising (TFI) model, we make an attempt to directly analyze the optimized network parameters. In the RBM optimization, a zero-temperature quantum state is mapped onto a finite-temperature classical state of the extended Ising spins that constitute the RBM. We find that the quantum phase transition from the ordered phase to the disordered phase in the 1D TFI model by increasing the transverse field is clearly reflected in the behaviors of the optimized RBM parameters and hence in the finite-temperature phase diagram of the classical RBM Ising system. The present finding of a correspondence between the neural-network parameters and quantum phases suggests that a careful investigation of the neural-network parameters may provide a new route to extracting nontrivial physical insights from the neural-network wave functions.
description: 12 pages, 6 figures
Robust Dynamic State Estimator of Integrated Energy Systems based on Natural Gas Partial Differential Equations
Creators: name: Chen, Liang
name: Li, Yang
name: Huang, Manyun
name: Hui, Xinxin
name: Gu, Songlin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The reliability and precision of dynamic database are vital for the optimal operating and global control of integrated energy systems. One of the effective ways to obtain the accurate states is state estimations. A novel robust dynamic state estimation methodology for integrated natural gas and electric power systems is proposed based on Kalman filter. To take full advantage of measurement redundancies and predictions for enhancing the estimating accuracy, the dynamic state estimation model coupling gas and power systems by gas turbine units is established. The exponential smoothing technique and gas physical model are integrated in Kalman filter. Additionally, the time-varying scalar matrix is proposed to conquer bad data in Kalman filter algorithm. The proposed method is applied to an integrated gas and power systems formed by GasLib-40 and IEEE 39-bus system with five gas turbine units. The simulating results show that the method can obtain the accurate dynamic states under three different measurement error conditions, and the filtering performance are better than separate estimation methods. Additionally, the proposed method is robust when the measurements experience bad data.
description: Accepted by IEEE transactions on Industry Applications. arXiv admin note: text overlap with arXiv:2107.05891
INDAK NG PANGARAP
Creators: name: OGALESCO, CHRISTELLE LU STEPHANY L.
Publisher: name: BINAS PUBLISHING
Year: 2025
Subjects: INDAK NG PANGARAP

description: PACIFICUS: A Literary Magazine by Binas Publishing (Volume 1, Issue 1)

 

PACIFICUS is a literary magazine by Binas Publishing that celebrates the power of words through a diverse collection of poetry, short stories, essays, and creative works. With its inaugural issue, PACIFICUS Volume 1, Issue 1 sets the stage for a platform where writers and artists can share their voices, perspectives, and imagination.

 

This edition features compelling narratives, thought-provoking reflections, and artistic expressions that resonate with readers across different backgrounds. Whether exploring themes of identity, resilience, culture, or the human experience, PACIFICUS embodies the essence of storytelling that inspires and connects.

 

As a publication dedicated to fostering literary excellence, PACIFICUS aims to nurture emerging and established writers while enriching the literary landscape. Each issue aspires to be a testament to creativity, insight, and the enduring impact of literature.
Thermodynamic parametrization of dark energy
Creators: name: Capozziello, Salvatore
name: D'Agostino, Rocco
name: Luongo, Orlando
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a model-independent parametrization of dark energy motivated by thermodynamics. To this aim, we consider Padé polynomials to reconstruct the form of deceleration parameter adequate to describe different epochs of cosmic history and divergence-free in the far future. The proposed scenario also fulfills the demand of structure formation and contains the $Λ$CDM model as a limiting case. Thus, a numerical analysis at both background and perturbation levels is performed through the Markov Chain Monte Carlo method in view of the most recent cosmic data. We then use the observational constraints to explore the features of dark energy evolution and compare our findings with the predictions of the standard cosmological model.
description: 7 pages, 4 figures. Accepted for publication in Physics of the Dark Universe
Review of Sidney Hook's Towards the Understnading of Karl Marx
Creators: name: Farmelant, Jim
Publisher: name: Humanities Commons
Year: 2008
Subjects: subject: Philosophy, Marxist
subject: Communism
subject: Pragmatism

description: Towards the Understanding of Karl Marx after seventy years remains of interest to us because it is one of the outstanding works in the tradition that has come to be known as Western Marxism. Indeed, as a work, it belongs on the bookshelf alongside such other classics of Western Marxism as History and Class Consciousness, Korsch's Marxism and Philosophy or Herbert Marcuse's Reason and Revolution.
Schlieren and BOS velocimetry of a round turbulent helium jet in air
Creators: name: Settles, Gary S.
name: Liberzon, Alex
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Seedless velocimetry is gaining interest in many industrial and research applications. We report on a comparative study of time-resolved optical velocimetry using traditional, mirror-type knife-edge schlieren optics versus Background-Oriented Schlieren (BOS) of subsonic round turbulent helium jets in air at Red = 5,890 and 11,300. Digital images with 1024 pixels streamwise resolution (0 < x/d < 200) were captured at 6000 frames/s in large ensembles. Velocimetry was performed on these results by digital image correlation (DIC) using OpenPIV software, and by streak-schlieren analysis of x-t diagrams (kymography). Limited PIV data were also collected for verification of the schlieren velocimetry results. Both BOS and traditional schlieren show partial success in measuring the mean-flow helium jet self-similarity in terms of the 1/x decay of centerline velocity, Gaussian-shaped radial velocity profiles, and linear spreading rate of the jet. Visualized turbulent eddies, used as tracers in schlieren velocimetry, are observed to last longer than is necessary for this purpose in the present helium jets. Also, the measured convective velocity appears to be sufficiently robust to sum to the jet mean velocity in some of the results. Kymography yields better overall results than DIC, which we attribute to kymography's spatiotemporal "spectrum" of jet velocities, enabling the discrimination of fast eddies near the jet centerline from slower ones near the jet periphery. DIC and other analysis methods suffer from a path-averaging bias which negatively affects the results. The reduction of kymographic data for velocimetry was done manually and also by a Fourier-transform image-feature-orientation code, both yielding equivalent results.
Supplementary document for 44-fs pulse generation at 2.05 µm from a SESAM mode-locked Tm:GdScO3 laser - 6214990.pdf
Creators: name: Zhang, Ning
name: Song, Qingsong
name: Zhou, Jingjing
name: Liu, Jian
name: Liu, Shande
name: zhang, huiyun
name: Xu, Xiaodong
name: Xue, Yanyan
name: Xu, Jun
name: Chen, Weidong
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1
Generating 77 T using a portable pulse magnet for single shot quantum beam experiments
Creators: name: Ikeda, Akihiko
name: Matsuda, Yasuhiro H.
name: Zhou, Xuguang
name: Peng, Shiyue
name: Ishii, Yuto
name: Yajima, Takeshi
name: Kubota, Yuya
name: Inoue, Ichiro
name: Inubishi, Yuichi
name: Tono, Kensuke
name: Yabashi, Makina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We devised a portable system that generates pulsed high magnetic fields up to 77 T with 3 $μ$s duration. The system employs the single turn coil method, a destructive way of field generation. The system consists of a capacitor of 10.4 $μ$F, a 30 kV charger, a mono air-gap switch, a triggering system, and a magnet clamp, which weighs less than 1.0 tons in total and is transportable. The system offers opportunities for single-shot experiments at ultrahigh magnetic fields in combinations with novel quantum beams. The single-shot x-ray diffraction experiment using x-ray free-electron laser at 65 T is presented. We comment on the possible update of the system for the generation of 100 T.
description: 5 pages, 4 figures
Melting curve of magnesium up to 460 GPa from ab initio molecular dynamics simulations
Creators: name: Cui, Chengfeng
name: Xian, Jiawei
name: Liu, Haifeng
name: Tian, Fuyang
name: Gao, Xingyu
name: Song, Haifeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on ab initio molecular dynamics simulations, we determined the melting curve of magnesium (Mg) up to ~460 GPa using the solid-liquid coexistence method. Between ~30 and 100 GPa, our melting curve is noticeably lower than those from static experiments, but is in good agreement with recent shock experiments. Up to ~450 GPa, our melting curve is generally consistent with the melting points from first-principles calculations using the small-cell coexistence method. We found that, at high pressures of a few hundred GPa, due to the strong softening of interatomic interactions in the liquid phase, solid-liquid coexistence simulations of Mg show some characteristics distinctively different from other metal systems, such as aluminum. For example, at a given volume, the pressure and temperature range for maintaining a stable solid-liquid coexistence state can be very small. The strong softening in the liquid phase also causes the unusual behavior of reentrant melting to occur at very high pressures. The onset of reentrant melting is predicted at ~305 GPa, close to that at ~300 GPa from the small-cell coexistence method. We show that the calculated melting points, considering reentrant melting, can be excellently fitted to a low-order Kechin equation, thereby making it possible for us to obtain a first-principles melting curve of Mg at pressures above 50 GPa for the first time. Similar characteristics in solid-liquid coexistence simulations, as well as reentrant melting, are also expected for other systems with strong softening in the liquid phase at high pressures.
description: 22 pages, 9 figures
Overhauling Sound Diffusion in Auditoria Using Deep-Subwavelength Acoustic Metamaterials
Creators: name: Ballestero, Eric
Publisher: name: London South Bank University
Year: 2021

description: The reducedamount of space available in critical listening environments, such as orchestra pits, rehearsal rooms or even recording studios, often impairs the installation of helpful, but sizeable, acoustic treatments on their boundaries. This can be a problem as such acoustic treatments, mainly used for sound absorption and diffusion, are key for controlling the physical aspects of sound propagation in the environment. This research thus proposes to study experimentally and numerically a cutting-edge metamaterial-inspired approach designed to provide ultra-thin and adaptable alternatives to traditional acoustic treatments, with a particular focus on sound diffusion, and how these can be integrated in practical computational frameworks. These novel deep-subwavelength acoustic metamaterials, termed metadiffusers, allow for efficient sound diffusion within dimensions 1/10th to 1/20th thinner than ordinary sound diffusers. Moreover, the optimization potential of metadiffusers brings a vast panel of variable configurations depending on the situation requirements. Results presented throughout this thesis outline several of these configurations with experimental and/or numerical validations in free-field scattering scenarios as well as numerical room acoustic applications. Very good agreement is found all through between the analytical and experimental/numerical scattering and diffusion datasets, thus demonstrating the outstanding and versatile potential of metadiffusers to be applied in many critical listening environments where space is at a premium, such as orchestra pits or recording studios.
Extrapulmonary tuberculosis in children
Creators: name: Cloete, David
name: Obinna  Eleweanya
name: Mcdermott, Helen
name: Ramnauth, Vineeta
name: Sookhai, Leela
Publisher: name: F1000Research
Year: 2016

description: Children contract TB from the environment and close contact with infected adults. Those under 5 years old are more at risk from developing severe & extra-pulmonary TB.

This poster details the epidemiology, pathophysiology, various clinical presentations and their associated managements of this condition.
Anytime Capacity Expansion in Medical Residency Match by Monte Carlo Tree Search
Creators: name: Abe, Kenshi
name: Komiyama, Junpei
name: Iwasaki, Atsushi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper considers the capacity expansion problem in two-sided matchings, where the policymaker is allowed to allocate some extra seats as well as the standard seats. In medical residency match, each hospital accepts a limited number of doctors. Such capacity constraints are typically given in advance. However, such exogenous constraints can compromise the welfare of the doctors; some popular hospitals inevitably dismiss some of their favorite doctors. Meanwhile, it is often the case that the hospitals are also benefited to accept a few extra doctors. To tackle the problem, we propose an anytime method that the upper confidence tree searches the space of capacity expansions, each of which has a resident-optimal stable assignment that the deferred acceptance method finds. Constructing a good search tree representation significantly boosts the performance of the proposed method. Our simulation shows that the proposed method identifies an almost optimal capacity expansion with a significantly smaller computational budget than exact methods based on mixed-integer programming.
title: Der Non-Bias-Mythos
Creators: name: Brandl, Matthias
name: Johannes, Lenhard
Publisher: name: Zentrum verantwortungsbewusste Digitalisierung
publisherIdentifier: https://ror.org/04ms06f06
publisherIdentifierScheme: ROR
Year: 2024
Subjects: classificationCode: 6
subject: FOS: Humanities
subject: Artificial Intelligence

description: Viele Mythen ranken sich um die Künstliche Intelligenz. Einer davon ist der Non-Bias-Mythos: die Vorstellung, dass es vor allem mehr und bessere Daten bräuchte, um Maschinen ein vorurteilsfreies Handeln zu lehren. Doch wir sollten skeptisch sein.
Leveraging AI and Big Data for Urban Sustainability: A Smart City Perspective
Creators: name: Researchscholar
Publisher: name: Zenodo
Year: 2025

description: The rapid urbanization of the global population has led to increased pressure on city infrastructure, resources, andthe environment. Urban sustainability has become a critical focus for cities around the world, with the aim of improving thequality of life for urban residents while reducing environmental impact and promoting efficient use of resources. Artificialintelligence (AI) and big data are playing a pivotal role in the development of smart cities by enabling real-time data collection,predictive analytics, and optimized decision-making. This paper explores how AI and big data can be leveraged to enhance urbansustainability through smart city initiatives. It examines the use of AI and big data in key areas such as energy management,waste reduction, transportation optimization, and urban planning. The paper also addresses the challenges and opportunitiesassociated with implementing these technologies in urban environments and discusses the potential for AI-driven solutions tocreate more sustainable, livable, and resilient cities.
Slip and Stress From Low Strain-Rate Nonequilibrium Molecular Dynamics: The Transient-Time Correlation Function Technique
Creators: name: Maffioli, Luca
name: Smith, Edward R.
name: Ewen, James P.
name: Daivis, Peter J.
name: Dini, Daniele
name: Todd, B. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive the transient-time correlation function (TTCF) expression for the computation of phase variables of inhomogenous confined atomistic fluids undergoing boundary-driven planar shear (Couette) flow at constant pressure. Using nonequilibrium molecular dynamics simulations, we then apply the TTCF formalism to the computation of the shear stress and the slip velocity for atomistic fluids at realistic low shear rates, in systems under constant pressure and constant volume. We show that, compared to direct averaging of multiple trajectories, the TTCF method dramatically improves the accuracy of the results at low shear rates, and that it is suitable to investigate the tribology and rheology of atomistically detailed confined fluids at realistic flow rates.
Electrical conductivity of random metallic nanowire networks: An analytical consideration along with computer simulation
Creators: name: Tarasevich, Yuri Yu.
name: Vodolazskaya, Irina V.
name: Eserkepov, Andrei V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have proposed an analytical model for the electrical conductivity in random, metallic, nanowire networks. We have mimicked such random nanowire networks as random resistor networks (RRN) produced by the homogeneous, isotropic, and random deposition of conductive zero-width sticks onto an insulating substrate. We studied the electrical conductivity of these RRNs using a mean-field approximation. An analytical dependency of the electrical conductivity on the main physical parameters (the number density and electrical resistances of these wires and of the junctions between them) has been derived. Computer simulations have been performed to validate our theoretical predictions. We computed the electrical conductivity of the RRNs against the number density of the conductive fillers for the junction-resistance-dominated case and for the case where the wire resistance and the junction resistance were equal. The results of the computations were compared with this mean-field approximation. Our computations demonstrated that our analytical expression correctly predicts the electrical conductivity across a wide range of number densities.
description: 7 pages, 9 figures, 59 references
Nematicity and fractional magnetization plateaus induced by spin-lattice coupling in the classical kagome-lattice Heisenberg antiferromagnet
Creators: name: Gen, Masaki
name: Suwa, Hidemaro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the effect of spin-lattice coupling (SLC) on the magnetic properties of the classical kagome-lattice Heisenberg antiferromagnet (KHAF) using improved Monte Carlo updates. The lattice modes are represented by Einstein site phonons, which introduce effective further-neighbor spin interactions in addition to the nearest-neighbor biquadratic interactions. In the weak SLC, the macroscopically degenerate coplanar ground state remains at zero field, while a $\sqrt{3} \times \sqrt{3}$ ordered phase accompanied by a 1/3-magnetization plateau appears in external magnetic fields. In the strong SLC, we find a nematic order at zero field and a 1/9-magnetization plateau associated with a $3 \times 3$ collinear order. Near the phase transition between the 1/9- and 1/3-plateau states, the ergodicity in the single spin flip is practically broken, and slow dynamics appear. We propose that relevant KHAFs with strong SLC would be realized in spinel-based materials.
description: 10 pages with 4 figures
Detecting deep axisymmetric toroidal magnetic fields in stars. The traditional approximation of rotation for differentially rotating deep spherical shells with a general azimuthal magnetic field
Creators: name: Dhouib, Hachem
name: Mathis, Stéphane
name: Bugnet, Lisa
name: Van Reeth, Timothy
name: Aerts, Conny
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Asteroseismology has revealed small core-to-surface rotation contrasts in stars in the whole HR diagram. This is the signature of strong transport of angular momentum (AM) in stellar interiors. One of the plausible candidates to efficiently carry AM is magnetic fields with various topologies that could be present in stellar radiative zones. Among them, strong axisymmetric azimuthal magnetic fields have received a lot of interest. Indeed, if they are subject to the so-called Tayler instability, the accompanying triggered Maxwell stresses can transport AM efficiently. In addition, the electromotive force induced by the fluctuations of magnetic and velocity fields could potentially sustain a dynamo action that leads to the regeneration of the initial strong axisymmetric azimuthal magnetic field. The key question we aim to answer is: can we detect signatures of these deep strong azimuthal magnetic fields? The only way to answer this question is asteroseismology and the best laboratories of study are intermediate-mass and massive stars. Most of these are rapid rotators during their main-sequence. Therefore, we have to study stellar pulsations propagating in stably stratified, rotating, and potentially strongly magnetised radiative zones. We generalise the traditional approximation of rotation by simultaneously taking general axisymmetric differential rotation and azimuthal magnetic fields into account in a non-perturbative way. Using this new formalism, we derive the asymptotic properties of magneto-gravito-inertial (MGI) waves and their period spacings. We find that toroidal magnetic fields induce a shift in the period spacings of MGI modes. An equatorial azimuthal magnetic field with an amplitude of the order of $10^5\,\rm G$ leads to signatures that can be detectable thanks to modern space photometry. More complex hemispheric configurations are more difficult to observe.
description: 21 pages, 15 figures, 1 table, abstract shortened for arXiv. Published in A&A
The Epic of Genesis: Catherine Malabou and the gêne of Epigenetics
Creators: name: Basile, Jonathan
Publisher: name: Humanities Commons
Year: 2023
Subjects: subject: Evolution (Biology)
subject: Evolution
subject: Evolutionary developmental biology
subject: Epigenetics
subject: Plasticity
subject: Malabou, Catherine
subject: Derrida, Jacques
subject: Deconstruction
subject: Science
subject: Materialism

description: This article examines the conflicting representations of plasticity and epigenetics in the work of philosopher Catherine Malabou and evolutionary theorists Mary Jane West-Eberhard and Eva Jablonka. Malabou effaces the unsettled debates within the life sciences in order to speak of a new biological ‘paradigm’ and to attribute values of novelty or inventiveness to life itself. The aporias of evolutionary narrative and causality reveal a necessary differentiality and textuality that belongs neither to life nor science itself, but leaves a haunting remanence within every corpus. New materialism resists this necessity of life-science, which calls for a deconstructive reading.
Use of Transmission and Reflection Complex Time Delays to Reveal Scattering Matrix Poles and Zeros: Example of the Ring Graph
Creators: name: Chen, Lei
name: Anlage, Steven M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We identify the poles and zeros of the scattering matrix of a simple quantum graph by means of systematic measurement and analysis of Wigner, transmission, and reflection complex time delays. We examine the ring graph because it displays both shape and Feshbach resonances, the latter of which arises from an embedded eigenstate on the real frequency axis. Our analysis provides a unified understanding of the so-called shape, Feshbach, electromagnetically-induced transparency, and Fano resonances, on the basis of the distribution of poles and zeros of the scattering matrix in the complex frequency plane. It also provides a first-principles understanding of sharp resonant scattering features, and associated large time delay, in a variety of practical devices, including photonic microring resonators, microwave ring resonators, and mesoscopic ring-shaped conductor devices. Our analysis is the first use of reflection time difference, as well as the first comprehensive use of complex time delay, to analyze experimental scattering data.
description: 22 pages, 18 figures
La investigación en ciencias sociales
Creators: name: Bonilla, Fabricio
Publisher: name: Humanities Commons
Year: 2023

description: Un problema frecuente para los investigadores en ciencias sociales es el método científico a seguir para generar nuevos conocimientos. El trabajo conjunto y creativo de la investigación (investigación básica y aplicada) y el desarrollo experimental permiten producir nuevos conocimientos para la creación o mejoramiento de bienes, servicios, métodos o procesos.
Complement Clause types in Itsekiri
Creators: name: Ogundele, Toluwani
Publisher: name: Humanities Commons
Year: 2023

description: This research paper investigates the various types of complement clauses in Ìtsẹ̀kírì, a Yoruboid language spoken in the Niger Delta region of Nigeria. Drawing from Noonan's approach to complement clauses (2007), this study investigates the varied expressions of complementation in Ìtsẹ̀kírì, particularly its usage in the context of reported speech, indirect speech and expression of thoughts and feelings. The research primarily relies on data collected from native speakers of the language who exhibit a high level of fluency and proficiency in Ìtsẹ̀kírì. Additionally, relevant texts and academic journals on complementation were consulted. The objective of this paper is to identify the types and underlying grammatical structures of complement clauses in Itsekiri. Ultimately, this study seeks to deepens the understanding of complementation phenomena in Itsekiri and make significant contribution to the existing body of knowledge in terms of the syntactic analysis of Ìtsẹ̀kírì language, as well as to the broader field of linguistics.
Emergent Hadron Mass in Strong Dynamics
Creators: name: Binosi, Daniele
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Emergent Hadron Mass (EHM) is a mechanism capable of explaining both the unnaturally small (pion) and large (proton) masses of hadrons and if not the origin of confinement, then intimately connected with it. Even though the modern formulation of EHM has only recently been completed, it is rapidly becoming a fundamental focus for modern and future experimental efforts aimed at understanding the strong force within the Standard Model. Using Dyson-Schwinger equations for the gluon, ghost and quark propagators, I will introduce the main EHM concepts and illustrate how far this framework can take us in understanding strong interaction phenomenology.
description: 34 pages, 16 figures; contribution to the 2021 School on the Physics of Baryons, Oct 18-22 2021, Sevilla; v2: improved discussion of the effective charge
Slow-Fluor Scintillator for Low Energy Solar Neutrinos and Neutrinoless Double Beta Decay
Creators: name: Dunger, Jack
name: Leming, Edward J.
name: Biller, Steven D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The potential for using slow-fluor liquid scintillators to study low energy solar neutrinos and neutrinoless double beta decay (0nbb) is explored through a series of simulations. The fluorescence model assumed for the primary fluor has characteristics similar to acenaphthene, recently used to demonstrate Cherenkov separation at energies around 1 MeV. Results here indicate notably better directional reconstruction in large-scale detectors than has previously been suggested by other approaches, allowing better identification of low energy solar neutrinos. These studies indicate that a detector with as little as ~30% coverage using currently available photomultiplier tubes could be able to make a measurement of the CNO solar neutrino flux to a precision of better than 10% (enough to distinguish metallicity models) with a few kiloton-years of exposure. In terms of 0nbb studies here suggest that the ability to separate mechanisms based on angular distributions is weak, but that the rejection of solar neutrino backgrounds with such a technique might potentially approach a factor of 10 for endpoint energies near 2.5 MeV in the angular hemisphere defined by the solar direction.
description: 10 pages, 14 figures
title: Module für die multimediale netzbasierte Baustatik-Lehre
Creators: name: Gebbeken, Norbert
name: Pfeiffer, Eberhard
name: Köhler, Anja
Publisher: name: Bauhaus-Universität Weimar
Year: 2003
Subjects: subject: Baustatik
subject: Computerunterstützter Unterricht
subject: Internet
subject: 620

description: In dem interdisziplinären und internationalen Verbundprojekt >2MN - Module für die multimediale netzbasierte Hochschullehre< werden diverse Lehr- und Lernmodule für ingenieur- und informationswissenschaftliche Studiengänge realisiert. Die benötigten Funktionalitäten für die Bereitstellung der verschiedenen Unterrichtsmaterialien sowie für Kommunikation, Betreuung der Kurse oder auch administrative Aufgaben im Netz werden von der in diesem Projekt entwickelten systemunabhängigen Lernplattform ELAT, der >Environment for Learning and Teaching<, zur Verfügung gestellt. Speziell für das Fachgebiet Baustatik werden vom Institut für Mechanik und Statik der Universität der Bundeswehr München einzelne Kapitel nach didaktischen Gesichtspunkten multimedial mit Text, Graphik, Bildern, Animationen und kurzen Videoclips zum systematisch angeleiteten Wissenserwerb aufbereitet. Interaktive Übungen geben Rückmeldung über den individuellen Lernfortschritt des Online-Studenten. Die Förderung der Eigeninitiative der Lernenden spielt dabei ebenso eine wichtige Rolle wie die Berücksichtigung nutzerspezifischer Lernpräferenzen. Einfach zu bedienende Statikprogramme wie der >Drehwinkeltrainer< sollen den angehenden Statikern als Kontroll- und Experimentierumgebung dienen. Das Online-Dictionary >Wörterbuch Bauwesen< erleichtert die Arbeit bei der Übersetzung baustatischer Fachtermini. Weitere Baustatik-Anwendungen, beispielsweise die Stabilitätsberechnung von Stabwerken, die Bestimmung von Querschnittswerten und die Berechnung von Biege- und Einflusslinien mit der Methode, können ortsunabhängig mit einem Pocket-PC genutzt werden.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 10. bis 12.06.2003, Bauhaus-Universität Weimar, vol. 16, 2003
LA INVESTIGACIÓN EN CIENCIAS SOCIALES: Sugerencias prácticas sobre el proceso
Creators: name: Lizeth Ortiz, Melina
Publisher: name: unknown
Year: 2023

description: Proceso por el cual se realiza una investigación por medio del metodo científico en el ambito social. Donde se eplica la forma de obtener la hipótesis, objetivo, problema, analisis de datos y resultados.
LA INVESTIGACIÓN EN CIENCIAS SOCIALES: Sugerencias prácticas sobre el proceso
Creators: name: Lizeth Ortiz, Melina
Publisher: name: Humanities Commons
Year: 2023

description: Proceso por el cual se realiza una investigación por medio del metodo científico en el ambito social. Donde se eplica la forma de obtener la hipótesis, objetivo, problema, analisis de datos y resultados.
Twin Anterior Cerebral Artery anomaly : Azygous ACA with fenestrated right A1 segment
Creators: name: GARG, NAVNI
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Anatomy
subject: CT-Angiography
subject: Normal variants
subject: Congenital

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 30 years
description: Clinical History: A 30 year old hypertensive woman presented to the emergency room with complains of acute onset of severe headache. Neurological examination did not reveal any abnormality. Patient was referred for NCCT (Non Contrast Computed Tomography) head followed by M... Final Diagnosis: Twin ACA anomaly with Azygous ACA and fenestration of right A1 segment
Generalised U-dual solutions in supergravity
Creators: name: Blair, Chris D. A.
name: Zhidkova, Sofia
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the notion of generalised U-duality as a solution generating technique in supergravity. We demonstrate a method to take solutions of type IIA supergravity on a 3-sphere, with NSNS flux, to new solutions of 11-dimensional supergravity, using exceptional geometry techniques. These new solutions are characterised by an underlying 3-algebra structure, and generalise features of solutions obtained by non-abelian T-duality, which involve an underlying ordinary Lie algebra. We focus on an example where we start with the pp-F1-NS5 solution in type IIA supergravity. We discuss the properties of our resulting new solution, including the possibility of viewing it globally as a U-fold, and its M2 and M5 brane charges. In the extremal case, the new solution admits an AdS${}_3$ limit, which falls into a recently constructed class of M-theory AdS$_{3}$ backgrounds -- this provides a global completion of our solution with a well-defined holographic dual, similar to the global completions of non-abelian T-dual solutions. Our full solution is a 6-vector deformation of this AdS${}_3$ limit. We also explicitly solve the Killing spinor equation in the AdS${}_3$ limit, finding a $\frac{1}{2}$-BPS solution.
description: 27 pages + appendices; v2: published version (typos fixed, refs added)
Hedging Against Rate of Return Risk in Islamic Banks with Special Reference to GCC Islamic Banks
Creators: name: al Nashashibi, Yumna
Publisher: name: Manara - Qatar Research Repository
Year: 2025
Subjects: classificationCode: 50
subject: Philosophy and religious studies

description: This research is concerned with hedging against rate of return risk in Islamic banks with special focus on GCC Islamic banks. The research relies on content analysis of three existing streams of literature on this topic. The first stream supports the use of conventional derivatives, the second supports replication of these products and the third discourage the use of both and suggest other alternatives This research also attempts to find out whether GCC central banks have issued specific instructions with regards to the risk of concern to Islamic banks and finally it attempts know what are the rate of return hedging practices as disclosed in the annual reports of selected banks from the GCC.
Gastric decontamination in paediatric poisoning
Creators: name: Cloete, David
name: Edwards, Dawn
Publisher: name: F1000Research
Year: 2016

description: In children <10yrs: intentional poisoning = 10%. Steady over time	Unintentional poisoning is steadily decreasing 1% of ED visits in <5yrs in UK; Exposure rate of 4294/million pop/year in USA	Pharmaceutical poisoning is steadily increasing	Children >2yrs are at greater risk as they reach more advanced stages of development.
This poster reviews paediatric poisoning management options including induced emesis, gastric lavage and activated charcoal.