cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How much a Quantum Measurement is Informative?
Creators: name: Dall'Arno, Michele
name: D'Ariano, Giacomo Mauro
name: Sacchi, Massimiliano F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The informational power of a quantum measurement is the maximum amount of classical information that the measurement can extract from any ensemble of quantum states. We discuss its main properties. Informational power is an additive quantity, being equivalent to the classical capacity of a quantum-classical channel. The informational power of a quantum measurement is the maximum of the accessible information of a quantum ensemble that depends on the measurement. We present some examples where the symmetry of the measurement allows to analytically derive its informational power.
description: 3 pages, 2 figures, published in the proceedings of the 11th Quantum Communication, Measurement, and Computing (QCMC) conference, Vienna, Austria, 30 July-3 August, 2012
Die deutsche Berufsbildungsbranche: Stand und Rahmenbedingungen der Internationalisierung - Kontextanalyse zur Evaluation der BMBF-Förderrichtlinie "Internationalisierung der Berufsbildung" (IBB)
Creators: name: Krichewsky-Wegener, Léna
name: Brings, Christin
Publisher: name: Zenodo
Year: 2020

description: Die vorliegende Studie wurde im Rahmen der Evaluation der Richtlinie zur Förderung der Internationalisierung der Berufsbildung (IBB) des Bundesministeriums für Bildung und Forschung (BMBF) durch das wissenschaftliche Begleitprojekt der Förderrichtlinie (wb-ibb, 2017-2022) verfasst. Sie beleuchtet den aktuellen Stand sowie die Rahmenbedingungen für den Ausbau internationaler Aktivitäten von deutschen Anbietern beruflicher Aus- und Weiterbildungsdienstleistungen.
Atomistic theory of dark excitons in self-assembled quantum dots of reduced symmetry
Creators: name: Zielinski, M.
name: Don, Y.
name: Gershoni, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use an atomistic model to consider the effect of shape symmetry breaking on the optical properties of self-assembled InAs/GaAs quantum dots. In particular, we investigate the energy level structure and optical activity of the lowest energy excitons in these nanostructures. We compare between quantum dots with two-fold rotational and two reflections (C2v) symmetry and quantum dots in which this symmetry was reduced to one reflection only (Cs) by introducing a facet between the quantum dots and the host material. We show that the symmetry reduction mostly affects the optical activity of the dark exciton. While in symmetric quantum dots, one of the dark exciton eigenstates has a small dipole moment polarized along the symmetry axis (growth direction) of the quantum dot, in non-symmetric ones, the two dark excitons' dipole moments are predominantly cross-linearly polarized perpendicular to the growth direction and reveal pronounced polarization anisotropy. Our model calculations agree quantitatively with recently obtained experimental data.
Black rings in global anti-de Sitter space
Creators: name: Figueras, Pau
name: Tunyasuvunakool, Saran
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct five dimensional black rings in global anti-de Sitter space using numerical methods. These rings satisfy the BPS bound $| J | < M \ell$, but the angular velocity always violates the Hawking-Reall bound $| Ω_H \ell | \leq 1$, indicating that they should be unstable under superradiance. At high temperatures, the limit $| Ω_H \ell | \searrow 1$ is attained by thin rings with an arbitrarily large radius. However, at sufficiently low temperatures, this limit is saturated by a new kind of rings, whose outer circle can still be arbitrarily long while the hole in the middle does not grow proportionally. This gives rise to a membrane-like horizon geometry, which does not have an asymptotically flat counterpart. We find no evidence for thin AdS black rings whose transverse $S^2$ is much larger than the radius of AdS, $\ell$, and thus these solutions never fall into the hydrodynamic regime of the dual CFT. Thermodynamically, we find that AdS black rings never dominate the grand canonical ensemble. The behaviour of our solutions in the microcanonical ensemble approaches known perturbative results in the thin-ring limit.
description: 26 pages, 10 figures
Search strategies-Use of anticholinergic agents for haloperidol extrapyramidal side effects. A systematic review.
Creators: name: García Chávez, Linda Daniela
name: Herrería Guamialamá, Karol Mishel
name: Bonilla Maila, Handerson Dilan
name: Albites Yanza, Gina Nathalia
name: Alomoto Llumitasig, Katy Marisol
name: Mena Armas, Carlos Alexanderes
name: Tonato Chaguancallo, Erick Jordy
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 320221
subject: Psychiatry (incl. psychotherapy)

description: The antipsychotic drugs are caused by dopamine blockade in the nigrostriatal pathway and can be distressing and disabling for patients. Anticholinergic agents are commonly used to treat or prevent extrapyramidal symptoms by restoring the balance between dopamine and acetylcholine in the brain. Anticholinergics are drugs that block the action of acetylcholine, a neurotransmitter involved in various functions of the nervous system. These drugs are used to treat some side effects of antipsychotics, such as haloperidol, which can cause extrapyramidal symptoms, such as involuntary movement disturbances.The most used anticholinergics, such as biperiden, trihexyphenidyl, tropicamide, and procyclidine, are primarily used to treat the extrapyramidal side effects induced by some antipsychotics. These drugs act on the muscarinic receptors of acetylcholine, which are found in the striatum, an area of the brain involved in movement control. In this way, anticholinergics help restore the balance between dopamine and acetylcholine and improve symptoms such as tremors, rigidity, bradykinesia, parkinsonism, dystonia, and akathisia. However, anticholinergics can also have side effects for patients who take them along with antipsychotics, common side effects of anticholinergic medications include, blurred vision, constipation, urinary retention, cognitive impairment, delirium, dry mouth, increased salivation, loss of appetite, diarrhea, heartburn, nausea, vomiting, difficulty falling or staying asleep, and lack of energy. These effects may be more severe in older people or people with other illnesses. Therefore, the use of anticholinergics for haloperidol-induced extrapyramidal symptoms should be based on the type, severity, and duration of extrapyramidal symptoms, as well as the patient's age, and comorbidities.
Equation of state of the unitary Fermi gas: An update on lattice calculations
Creators: name: Drut, J.E.
name: Magierski, P.
name: Wlazłowski, G.
name: Lähde, T.A.
Publisher: name: American Physical Society
Year: 2012

description: The thermodynamic properties of the unitary Fermi gas (UFG) have recently been measured to unprecedented accuracy at the MIT. In particular, these measurements provide an improved understanding of the regime below T/εF 0.20, where a transition into a superfluid phase occurs. In light of this development, we present an overview of state-of-the-art auxiliary field quantum Monte Carlo (AFQMC) results for the UFG at finite temperature and compare them with the MIT data for the energy, chemical potential, and density. These AFQMC results have been obtained using methods based on the hybrid Monte Carlo (HMC) algorithm, which was first introduced within the context of lattice QCD.
The quantum superalgebra $\mathfrak{osp}_{q}(1|2)$ and a $q$-generalization of the Bannai-Ito polynomials
Creators: name: Genest, Vincent X.
name: Vinet, Luc
name: Zhedanov, Alexei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The Racah problem for the quantum superalgebra $\mathfrak{osp}_{q}(1|2)$ is considered. The intermediate Casimir operators are shown to realize a $q$-deformation of the Bannai-Ito algebra. The Racah coefficients of $\mathfrak{osp}_q(1|2)$ are calculated explicitly in terms of basic orthogonal polynomials that $q$-generalize the Bannai-Ito polynomials. The relation between these $q$-deformed Bannai-Ito polynomials and the $q$-Racah/Askey-Wilson polynomials is discussed.
description: 15 pages
Confinement and screening in tachyonic matter
Creators: name: Brito, F. A.
name: Freire, M. L. F.
name: Serafim, W.
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: In this paper we consider confinement and screening of the electric field. We study the behavior of a static electric field coupled to a dielectric function with the intent of obtaining an electrical confinement similar to what happens with the field of gluons that bind quarks in hadronic matter. For this we use the phenomenon of `anti-screening' in a medium with exotic dielectric. We show that tachyon matter behaves like an exotic way whose associated dielectric function modifies the Maxwell's equations and affects the fields which results in confining and Coulombian-like potentials in three spatial dimensions. We note that the confining regime coincides with the tachyon condensation, which resembles the effect of confinement due to condensation of magnetic monopoles. The Coulombian-like regime is developed at large distance which is associated with {a screening phase
description: Latex, 7 pages, 3 figures, to appear in EPJC
A 2022 $τ$-Herculid meteor cluster from an airborne experiment: automated detection, characterization, and consequences for meteoroids
Creators: name: Vaubaillon, J.
name: Loir, C.
name: Ciocan, C.
name: Kandeepan, M.
name: Millet, M.
name: Cassagne, A.
name: Lacassagne, L.
name: Da Fonseca, P.
name: Zander, F.
name: Buttsworth, D.
name: Loehle, S.
name: Toth, J.
name: Gray, S.
name: Moingeon, A.
name: Rambaux, N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context. The existence of meteor clusters has long since been a subject of speculation and so far only seven events have been reported, among which two involve less than five meteors, and three were seen during the Leonid storms. Aims. The 1995 outburst of Comet 73P/Schwassmann-Wachmann was predicted to result in a meteor shower in May 2022. We detected the shower, proved this to be the result of this outburst, and detected another meteor cluster during the same observation mission. Methods. The τ-Herculids meteor shower outburst on 31 May 2022 was continuously monitored for 4 hours during an airborne campaign. The video data were analyzed using a recently developed computer-vision processing chain for meteor real-time detection. Results. We report and characterize the detection of a meteor cluster involving 38 fragments, detected at 06:48 UT for a total duration of 11.3 s. The derived cumulative size frequency distribution index is relatively shallow: s = 3.1. Our open-source computer-vision processing chain (named FMDT) detects 100% of the meteors that a human eye is able to detect in the video. Classical automated motion detection assuming a static camera was not suitable for the stabilized camera setup because of residual motion. Conclusions. From all reported meteor clusters, we crudely estimate their occurrence to be less than one per million observed meteors. Low heliocentric distance enhances the probability of such meteoroid self-disruption in the interplanetary space.
description: 6 pqges, 5 figures
Momentum distribution and contact of the unitary Fermi gas
Creators: name: Ten, T.
name: Lähde, T.A.
name: Drut, J.E.
Publisher: name: American Physical Society
Year: 2011

description: We calculate the momentum distribution n(k) of the unitary Fermi gas by using quantum Monte Carlo calculations at finite temperature T/εF as well as in the ground state. At large momenta k/k F, we find that n(k) falls off as C/k4, in agreement with the Tan relations. From the asymptotics of n(k), we determine the contact C as a function of T/εF and present a comparison with theory. At low T/εF, we find that C increases with temperature, and we tentatively identify a maximum around T/εF0.4. Our calculations are performed on lattices of spatial extent up to Nx=14 with a particle number per unit volume of 0.03-0.07.
Applying textual analysis to auditing
Creators: name: Liu, Yue
Publisher: name: No Publisher Supplied
Year: 2019

description: Textual analysis is the process of extracting useful information from unstructured text data. In the domain of accounting, auditing, and finance, textual analysis is still an emerging area (Loughran and McDonald 2016). Motivated by the potential benefits of applying textual analysis to auditing, this dissertation consists of three essays on using textual analysis to improve the understanding of annual report review process, audit fee decision, and internal control risks. The first essay uses text mining to uncover the intensity of SEC comment letters and its association with the probability of restatement of 10-K filings. Specifically, it utilizes the Loughran and McDonald strong and weak modal word lists (Loughran and McDonald 2011) and measure the intensity of initial SEC comment letters based on the use of strong/weak modal language. The paper finds a positive association between the intensity of comment letter and the probability of restatement of the reviewed 10-K filing. The second essay examines whether the qualitative disclosures of earnings press releases provides additional information about audit risks that relates to audit fee decision. We find that a more abnormally negative tone of earnings in press releases is associated with higher audit fees, showing that the abnormal tone of press releases can be a signal of the client’s business risk. We also find the abnormal tone as a proxy of opportunistic disclosure behaviors when the abnormal tone is extremely positive. In addition, the association between an abnormally negative tone and audit fees is moderated by the credibility of the disclosure and by auditor’s experience with the client.The third essay investigates whether the risk factor disclosures on internal control over financial reporting (ICFR-related risk factors) complement the mandatory SOX 404 disclosures of material weaknesses in internal control. We find that the ICFR-related risk factor disclosure incrementally predicts future related adverse consequences. The results also suggest that firms with ICFR-related risk factors are likely to have higher audit fees. In addition, the contents of ICFR-related risk factors can help financial statement users assess the severity of internal control issues. These findings suggest that ICFR-related risk factors reflect potential internal control deficiencies.
Quantum Reading of Unitary Optical Devices
Creators: name: Dall'Arno, Michele
name: Bisio, Alessandro
name: D'Ariano, Giacomo Mauro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the problem of quantum reading of optical memories, namely the retrieving of classical information stored in the optical properties of a media with minimum energy. We present optimal strategies for ambiguous and unambiguous quantum reading of unitary optical memories, namely when one's task is to minimize the probability of errors in the retrieved information and when perfect retrieving of information is achieved probabilistically, respectively. A comparison of the optimal strategy with coherent probes and homodyne detection shows that the former saves orders of magnitude of energy when achieving the same performances. Experimental proposals for quantum reading which are feasible with present quantum optical technology are reported.
description: 3 pages, 2 figures, published in the proceedings of the 11th Quantum Communication, Measurement, and Computing (QCMC) conference, Vienna, Austria, 30 July-3 August, 2012
microRNAs as Novel Diagnostic Targets in Ischaemic Stroke
Creators: name: Bejleri, Jorin
Publisher: name: Royal College of Surgeons in Ireland
Year: 2024
Subjects: classificationCode: 320905
subject: Neurology and neuromuscular diseases

description: Stroke represents a major illness with considerable morbidity and mortality, conferring a significant impact on healthcare systems. The management of stroke in the acute phase depends heavily on the rapid access to diagnostic radiological investigations such as computed tomography (CT) brain, CT angiogram and/or magnetic resonance imaging (MRI) brain and clinical expertise. However, this is not always available, particularly in remote areas where access to specialised radiological investigations and neuroradiological expertise may be limited. Hence, there is need for rapid, highly accurate, easy-to-perform and interpret biomarkers. MicroRNAs (miRNAs) are potent regulators of gene expression which are dysregulated in a wide range of diseases and play crucial roles as regulators of signalling pathways involved in the pathophysiology of stroke. To this end, I aimed to identify and validate a unique circulating miRNA signature to aid in the diagnosis and prognosis of acute ischaemic stroke, and to assess the relationship between blood biomarker profiles and clinical and radiological outcome
Utilising the tsRNAsearch and nf-core/smrnaseq analysis pipelines, I successfully identified two unique small non-coding RNA profiles in discovery cohorts of acute stroke patients in serum samples collected within 12 h of symptoms onset compared to healthy control subjects. In the acute ischaemic stroke cohort, I identified Ala, ValCAC, HisGTG, GlyCCC, GlnCTG and LysCTT as the top six most differentially expressed tRNA features. I identified an ischaemic stroke-associated profile of top differentially-expressed miRNAs, hsa-miR-1-3p, hsa-miR-133a-3p, hsa-miR-200b, hsa-miR-499b-3p, hsa-miR-499a-5p and miR-143-3p. In the acute haemorrhagic stroke cohort I also identified differentially-expressed circulating tsRNAs including Arg, Gly, Val, GlnTTG when compared to ischaemic stroke. Top miRNA features identified were hsa-miR-574-5p, hsa-miR-181a-3p, hsa-miR-129-5p, hsa-miR-9-5p, hsa-miR-3168-5p and hsa-miR-125b-1-3p.
“Having looked too intensely”: The Maternal Imagination and the Power of Images in Early Modern Art
Creators: name: PONTIFEX, AMELIA
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 360102
subject: Art history

description: This thesis is structured to follow the natural progression of procreation from conception to the post-natal period. It explores the role, use and influence of images in women’s experience of procreation.
A reinforcement learning path planning approach for range-only underwater target localization with autonomous vehicles
Creators: name: Masmitja, Ivan
name: Martin, Mario
name: Katija, Kakani
name: Gomariz, Spartacus
name: Navarro, Joan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Underwater target localization using range-only and single-beacon (ROSB) techniques with autonomous vehicles has been used recently to improve the limitations of more complex methods, such as long baseline and ultra-short baseline systems. Nonetheless, in ROSB target localization methods, the trajectory of the tracking vehicle near the localized target plays an important role in obtaining the best accuracy of the predicted target position. Here, we investigate a Reinforcement Learning (RL) approach to find the optimal path that an autonomous vehicle should follow in order to increase and optimize the overall accuracy of the predicted target localization, while reducing time and power consumption. To accomplish this objective, different experimental tests have been designed using state-of-the-art deep RL algorithms. Our study also compares the results obtained with the analytical Fisher information matrix approach used in previous studies. The results revealed that the policy learned by the RL agent outperforms trajectories based on these analytical solutions, e.g. the median predicted error at the beginning of the target's localisation is 17% less. These findings suggest that using deep RL for localizing acoustic targets could be successfully applied to in-water applications that include tracking of acoustically tagged marine animals by autonomous underwater vehicles. This is envisioned as a first necessary step to validate the use of RL to tackle such problems, which could be used later on in a more complex scenarios
description: Accepted at CASE2022. Code at this Github repository https://github.com/imasmitja/RLforUTracking
Voices for Social Justice: TGI Resilience & Resistance Under Carceral Control
Creators: name: Contreras, Raquel
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: TGI, queer, incarceration, trans, gender non-conforming

description: This poster is about my fellowship experience at the Transgender, Gender-Variant, Intersex Justice Project (TGIJP), a group consisting of and serving low-income Black, Latiné, and other folx of color identifying as transgender, gender-nonconforming, and intersex, that have been impacted by imprisonment, policing, immigration detention, and other forms of carceral control.
Time series photometry of the helium atmosphere pulsating white dwarf EC 04207-474
Creators: name: Chote, P.
name: Sullivan, D. J.
name: Montgomery, M. H.
name: Provencal, J. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the analysis of 71 hours of high quality time-series CCD photometry of the helium atmosphere pulsating white dwarf (DBV) EC 04207-4748 obtained using the facilities at Mt John University Observatory in New Zealand. The photometric data set consists of four week-long observing sessions covering the period March to November 2011. A Fourier analysis of the lightcurves yielded clear evidence of four independent eigenmodes in the star with the dominant mode having a period of 447 s. The lightcurve variations exhibit distinct nonsinusoidal shapes, which results in significant harmonics of the dominant frequency appearing in the Fourier transforms. These observed variations are interpreted in terms of nonlinear contributions from the energy flux transmission through the subsurface convection zone in the star. Our modelling of this mechanism, using the methods first introduced by Montgomery (2005), yields a time-averaged convective response time of tau_0 ~ 150 s for the star, and this is shown to be broadly consistent with a MLT/alpha parameter value between 0.8 and 1.2. It is argued that for the DBV pulsators the measured value of tau_0 is a better estimate of the relative stellar surface temperatures than those obtained via spectroscopic techniques.
description: 9 pages, 3 figures, 6 tables
Exact-exchange density functional theory for neutron drops
Creators: name: Drut, J.E.
name: Platter, L.
Publisher: name: American Physical Society
Year: 2011

description: We compute the ground-state properties of finite systems of neutrons in an external harmonic trap, interacting via the Minnesota potential, using the "exact-exchange" form of orbital-dependent density functional theory. We compare our results with Hartree-Fock calculations and find very close agreement. Within the context of the interaction studied, we conclude that this simple orbital-dependent functional brings conventional nuclear density functional theory to the level of Hartree-Fock in an ab initio fashion. Our work is a first step toward higher order ab initio nuclear functionals based on realistic nucleon-nucleon interactions.
Magnetic fields on young, moderately rotating Sun-like stars - I: HD~35296 and HD~29615
Creators: name: Waite, Ian
name: Marsden, Stephen
name: Carter, Bradley
name: Petit, Pascal
name: Donati, Jean-Francois
name: Jeffers, Sandra
name: Saikia, Sudeshna Boro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Observations of the magnetic fields of young solar-type stars provide a way to investigate the signatures of their magnetic activity and dynamos. Spectropolarimetry enables the study of these stellar magnetic fields and was thus employed at the Télescope Bernard Lyot and the Anglo-Australian Telescope to investigate two moderately rotating young Sun-like stars, namely HD 35296 (V119 Tau, HIP 25278) and HD 29615 (HIP 21632). The results indicate that both stars display rotational variation in chromospheric indices consistent with their spot activity, with variations indicating a probable long-term cyclic period for HD 35296. Additionally, both stars have complex, and evolving, large-scale surface magnetic fields with a significant toroidal component. High levels of surface differential rotation were measured for both stars. For the F8V star HD 35296 a rotational shear of $ΔΩ$ = 0.22$^{+0.04}_{-0.02}$ rad/d was derived from the observed magnetic profiles. For the G3V star HD 29615 the magnetic features indicate a rotational shear of $ΔΩ$ = 0.48$_{-0.12}^{+0.11}$ rad/d, while the spot features, with a distinctive polar spot, provide a much lower value of $ΔΩ$ of 0.07$_{-0.03}^{+0.10}$ rad/d. Such a significant discrepancy in shear values between spot and magnetic features for HD 29615 is an extreme example of the variation observed for other lower-mass stars. From the extensive and persistent azimuthal field observed for both targets it is concluded that a distributed dynamo operates in these moderately rotating Sun-like stars, in marked contrast to the Sun's interface-layer dynamo.
description: 18 Pages, 13 figures, 5 tables, accepted for publication in MNRAS
Massless gravitons on a brane from massive gravity in five-dimensional Minkowski space
Creators: name: El-Menoufi, Basem Kamal
name: Sorbo, Lorenzo
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the possibility of localizing Einstein gravity on a three-brane embedded in a five-dimensional Minkowski space by giving a space-dependent mass to the graviton. We show that, with an overall fine tuning of the mass profile, it is possible to localize a massless graviton with a finite mass gap from the massive Kaluza-Klein modes. The theory does not contain ghosts and no scalar massless mode is sourced by brane matter. A massless vector mode is strongly coupled to the flux of energy-momentum into the extra dimension, so that it is not sourced as long as only brane-localized matter is considered. In the case where the mass profile has a delta-like shape the four-dimensional Planck mass $M_4$ is related to the five-dimensional one, $M_5$, by $M_4^{2}=M_5^3/m_0$, where $m_0$ is the mass of the first Kaluza-Klein mode of the graviton.
description: 9 pages
title: A Bayesian Network pilot study to assess the probability of inundation of the Kauaeranga Spillway, Thames, New Zealand
Creators: name: Grant, Georgia R.
name: Keller, Elizabeth D.
name: Christophersen, Annemarie
name: Mourot, P.
Publisher: name: GNS Science
Year: 2023

description: Coastal inundation is likely to pose an increasing risk to people and infrastructure in many regions of Aotearoa-New Zealand with changing climate. Here, we investigate the use of Bayesian Networks (BNs) as a statistical and graphical approach to emergency flood management in the Hauraki Plains, New Zealand. Specifically, BNs offer a complementary and efficient alternative to the use of multiple computationally intensive process-based models (e.g. vegetation, land use, soil, groundwater, fluvial hydrology, coastal hydrology) when assessing the likelihood of inundation and/or flooding events. The Waikato Regional Council (WRC) identified the operation of the Kauaeranga Spillway, which forces closure of State Highway 25 and the main access road in and out of Thames, as a key uncertainty in their regional emergency management. The WRC guided the development of the research question and have an interest in using the model output. The question selected for this pilot study “What is the likelihood that the Kauaeranga Spillway will be in operation [road inundated] in the next six hours?”. In this report we outline the process undertaken by GNS Science in this pilot study, including engaging with the stakeholder, developing a proof-of-concept model and interpreting the results. We conclude with a reflection of what worked well, work required to validate the model and what needs improvement to apply this approach in future to other questions and/or situations. (auth)
Performance of the RF-detectors of the Astroneu Array
Creators: name: Nonis, Stavros
name: Leisos, Antonios
name: Tsirigotis, Apostolos
name: Gkialas, Ioannis
name: Papageorgiou, Kostas
name: Tzamarias, Spyros
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Since 2014, the University Campus of the Hellenic Open University (HOU) hosts the Astroneu array which is dedicated to the detection of Extensive Air Showers (EAS) induced by high energy Cosmic Rays (CR). The Astroneu array incorporates 9 large particle scintillation detectors and 6 antennas sensitive in the Radio Frequency (RF) range 1-200 MHz. The detectors are adjusted in three autonomous stations operating in an environment with strong electromagnetic background. As shown by previous studies, EAS radio detection in such environments is possible using innovative noise rejection methods, as well as advanced analysis techniques. In this work, we present the analysis of the collected radio data corresponding to an operational period of approximately four years. We present the performance of the Astroneu radio array in reconstructing the EAS axis direction using different RF detector geometrical layouts and a technique for the estimation of the shower core by comparing simulation and experimental data. Moreover, we measure the relative amplitudes of the two mechanisms that give rise to RF emission (Askaryan effect and Geomagnetic emission) and show that they are in good agreement with previous studies as well as with the simulation predictions.
description: 26 pages, 11 figures
Strongly coupled Graphene on the Lattice
Creators: name: Drut, J.E.
name: Lähde, T.A.
Publisher: name: Sissa Medialab Srl
Year: 2011

description: The two-dimensional carbon allotrope graphene has recently attracted a lot of attention from researchers in the disciplines of Lattice Field Theory, Lattice QCD and Monte Carlo calculations. This interest has been prompted by several remarkable properties of the conduction electrons in graphene. For instance, the conical band structure of graphene at low energies is strongly reminiscent of relativistic Dirac fermions. Also, due the low Fermi velocity of vF ≃ c/300, where c is the speed of light in vacuum, the physics of the conduction electrons in graphene is qualitatively similar to Quantum Electrodynamics in a strongly coupled regime. In turn, this opens up the prospect of the experimental realization of gapped, strongly correlated states in the electronic phase diagram of graphene. Here, we review the experimental and theoretical motivations for Lattice Field Theory studies of graphene, and describe the directions that such research is likely to progress in during the next few years. We also give a brief overview of the two main lattice theories of graphene, the hexagonal Hubbard theory and the low-energy Dirac theory. Finally, we describe the prospect of extracting response functions, such as the electric conductivity, using Lattice Field Theory calculations.
Learning to solve arithmetic problems with a virtual abacus
Creators: name: Petruzzellis, Flavio
name: Chen, Ling Xuan
name: Testolin, Alberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Acquiring mathematical skills is considered a key challenge for modern Artificial Intelligence systems. Inspired by the way humans discover numerical knowledge, here we introduce a deep reinforcement learning framework that allows to simulate how cognitive agents could gradually learn to solve arithmetic problems by interacting with a virtual abacus. The proposed model successfully learn to perform multi-digit additions and subtractions, achieving an error rate below 1% even when operands are much longer than those observed during training. We also compare the performance of learning agents receiving a different amount of explicit supervision, and we analyze the most common error patterns to better understand the limitations and biases resulting from our design choices.
description: Accepted at Northern Lights Deep Learning Conference 2023
The unitary Fermi gas at finite temperature: Momentum distribution and contact
Creators: name: Ten, T.
name: Lähde, T.A.
name: Drut, J.E.
Publisher: name: Sissa Medialab Srl
Year: 2011

description: The Unitary Fermi Gas (UFG) is one of the most strongly interacting systems known to date, as it saturates the unitarity bound on the quantum mechanical scattering cross section. The UFG corresponds to a two-component Fermi gas in the limit of short interaction range and large scattering length, and is currently realized in ultracold-atom experiments via Feshbach resonances. While easy to define, the UFG poses a challenging quantum many-body problem, as it lacks any characteristic scale other than the density. As a consequence, accurate quantitative predictions of the thermodynamic properties of the UFG require Monte Carlo calculations. However, significant progress has also been made with purely analytical methods. Notably, in 2005 Tan derived a set of exact thermodynamic relations in which a universal quantity known as the "contact" C plays a crucial role. Recently, C has also been found to determine the prefactor of the high- frequency power-law decay of correlators as well as the right-hand-sides of shear- and bulk viscosity sum rules. The contact is therefore a central piece of information on the UFG in equilibrium as well as away from equilibrium. In this talk we describe some of the known aspects of Fermi gases at and around unitarity, show our latest Monte Carlo results for the contact at finite temperature, and summarize the open questions in the field, some of which we are starting to answer using large-scale Monte Carlo calculations by adapting methods from Lattice QCD.
Location Identification of Power Line Outages Using PMU Measurements with Bad Data
Creators: name: Li, Wen-Tai
name: Wen, Chao-Kai
name: Chen, Jung-Chieh
name: Wong, Kai-Kit
name: Teng, Jen-Hao
name: Yuen, Chau
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The use of phasor angle measurements provided by phasor measurement units (PMUs) in fault detection is regarded as a promising method in identifying locations of power line outages. However, communication errors or system malfunctions may introduce errors to the measurements and thus yield bad data. Most of the existing methods on line outage identification fail to consider such error. This paper develops a framework for identifying multiple power line outages based on the PMUs' measurements in the presence of bad data. In particular, we design an algorithm to identify locations of line outage and recover the faulty measurements simultaneously. The proposed algorithm does not require any prior information on the number of line outages and the noise variance. Case studies carried out on test systems of different sizes validate the effectiveness and efficiency of the proposed approach.
description: 10 pages, 3 figures, 5 tables, submitted to IEEE Transactions on Power Systems
title: Signal transduction in light-oxygen-voltage receptors lacking the active-site glutamine
Creators: name: Dietler, Julia
name: Gelfert, Renate
name: Kaiser, Jennifer
name: Borin, Veniamin
name: Renzl, Christian
name: Pilsl, Sebastian
name: Ranzani, Américo Tavares
name: García de Funtes, Andrés
name: Gleichmann, Tobias
name: Diensthuber, Ralph P.
name: Weyand, Michael
name: Mayer, Günter
name: Schapiro, Igor
name: Möglich, Andreas
Publisher: name: University of Bayreuth
Year: 2022
Subjects: subject: Photobiology
subject: Signal processing
subject: X-ray crystallography
subject: Mechanism of action
subject: 570

description: In nature as in biotechnology, light-oxygen-voltage photoreceptors perceive blue light to elicit spatiotemporally defined cellular responses. Photon absorption drives thioadduct formation between a conserved cysteine and the flavin chromophore. An equally conserved, proximal glutamine processes the resultant flavin protonation into downstream hydrogen-bond rearrangements. Here, we report that this glutamine, long deemed essential, is generally dispensable. In its absence, several light-oxygen-voltage receptors invariably retained productive, if often attenuated, signaling responses. Structures of a light-oxygen-voltage paradigm at around 1 Å resolution revealed highly similar light-induced conformational changes, irrespective of whether the glutamine is present. Naturally occurring, glutamine-deficient light-oxygen-voltage receptors likely serve as bona fide photoreceptors, as we showcase for a diguanylate cyclase. We propose that without the glutamine, water molecules transiently approach the chromophore and thus propagate flavin protonation downstream. Signaling without glutamine appears intrinsic to light-oxygen-voltage receptors, which pertains to biotechnological applications and suggests evolutionary descendance from redox-active flavoproteins.
Call for papers: Special issue on Coopetition
Creators: name: Monticelli, Jefferson Marlon
name: Leite, Emilene
name: Chim Miki, Adriana Fumi
name: Garrido, Ivan Lapuente
Publisher: name: Zenodo
Year: 2023
Subjects: Call for Papers
Special Issue
ANPAD
Brazilian Academy of Management
Brazilian Administration Review
Coopetition
Competition
Cooperation

description: BAR - Brazilian Administration Review Call for Papers: Special issue on Coopetition Main Topic: This special issue is designed to strengthen research on coopetition. As a paradoxical concept, coopetition involves firms interacting with two contradictory logics – competition and cooperation. The simultaneous cooperation and competition or the interplay – the sequential transition between the two – can give rise to important synergies among partners for knowledge development and learning but it may also generate tensions. Coopetition alludes to a cycle of creation and appropriation of value that can generate benefits such as – but not limited to – firms’ competitive advantages, cost reduction, access to resources and knowledge, expansion of customer base, etc. Overall, coopetition can be an effective business strategy for companies looking to achieve mutual benefits through combining competitive and cooperative relationships.
 Important Dates: Submission of Full Paper: until August 31, 2023. Initial decision sent to authors: until October 31, 2023 Deadline for revised papers: December 31, 2023 Notification of acceptance: until January 15, 2024 Deadline for final versions: February 20, 2024 Special Issue publication (expected): March 2024 Guest Editors: Dr. Jefferson Marlon Monticelli - Universidade do Vale do Rio dos Sinos, Business and Management School, Brazil (jmmonticelli@unisinos.br) Dr. Emilene Leite - Örebro University School of Business, Sweden (emilene.leite@oru.se) Dr. Adriana Fumi Chim Miki - Universidade Federal de Campina Grande, Graduate Program in Management, Brazil (adriana.c.miki@ufcg.edu.br) BAR Editor-in-Chief:  Dr. Ivan Lapuente Garrido - Universidade do Vale do Rio dos Sinos, Business and Management School, Brazil (bar-eic@anpad.org.br)
The redemption of singularity confinement
Creators: name: Ramani, Alfred
name: Grammaticos, Basil
name: Willox, Ralph
name: Mase, Takafumi
name: Kanki, Masataka
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present a novel way to apply the singularity confinement property as a discrete integrability criterion. We shall use what we call a full deautonomisation approach, which consists in treating the free parameters in the mapping as functions of the independent variable, applied to a mapping complemented with terms that are absent in the original mapping but which do not change the singularity structure. We shall show, on a host of examples including the well-known mapping of Hietarinta-Viallet, that our approach offers a way to compute the algebraic entropy for these mappings exactly, thereby allowing one to distinguish between the integrable and non-integrable cases even when both have confined singularities.
description: 7 pages
Call for papers: Special issue on Coopetition
Creators: name: Monticelli, Jefferson Marlon
name: Leite, Emilene
name: Chim Miki, Adriana Fumi
name: Garrido, Ivan Lapuente
Publisher: name: Zenodo
Year: 2023
Subjects: Call for Papers
Special Issue
ANPAD
Brazilian Academy of Management
Brazilian Administration Review
Coopetition
Competition
Cooperation

description: BAR - Brazilian Administration Review Call for Papers: Special issue on Coopetition Main Topic: This special issue is designed to strengthen research on coopetition. As a paradoxical concept, coopetition involves firms interacting with two contradictory logics – competition and cooperation. The simultaneous cooperation and competition or the interplay – the sequential transition between the two – can give rise to important synergies among partners for knowledge development and learning but it may also generate tensions. Coopetition alludes to a cycle of creation and appropriation of value that can generate benefits such as – but not limited to – firms’ competitive advantages, cost reduction, access to resources and knowledge, expansion of customer base, etc. Overall, coopetition can be an effective business strategy for companies looking to achieve mutual benefits through combining competitive and cooperative relationships.
 Important Dates: Submission of Full Paper: until October 01, 2023. Initial decision sent to authors: until October 31, 2023 Deadline for revised papers: December 31, 2023 Notification of acceptance: until January 15, 2024 Deadline for final versions: February 20, 2024 Special Issue publication (expected): March 2024 Guest Editors: Dr. Jefferson Marlon Monticelli - Universidade do Vale do Rio dos Sinos, Business and Management School, Brazil (jmmonticelli@unisinos.br) Dr. Emilene Leite - Örebro University School of Business, Sweden (emilene.leite@oru.se) Dr. Adriana Fumi Chim Miki - Universidade Federal de Campina Grande, Graduate Program in Management, Brazil (adriana.c.miki@ufcg.edu.br) BAR Editor-in-Chief:  Dr. Ivan Lapuente Garrido - Universidade do Vale do Rio dos Sinos, Business and Management School, Brazil (bar-eic@anpad.org.br)
Toward ab initio density functional theory for nuclei
Creators: name: Furnstahl, R.J.
name: Platter, L.
name: Drut, J.E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: We survey approaches to non-relativistic density functional theory (DFT) for nuclei using progress toward ab initio DFT for Coulomb systems as a guide. Ab initio DFT starts with a microscopic Hamiltonian and is naturally formulated using orbital-based functionals, which generalize the conventional 'local density plus gradients' form. The orbitals satisfy single-particle equations with multiplicative (local) potentials. The DFT functionals can be developed starting from internucleon forces using wavefunction-based methods or by Legendre transform via effective actions. We describe known and unresolved issues for applying these formulations to the nuclear many-body problem and discuss how ab initio approaches can help improve empirical energy density functionals.
Additional file 1 of The experience of albinism in France: a qualitative study on dyads of parents and their adult child with albinism
Creators: name: Fournier, Hugo
name: Hasdenteufel, Marie
name: Garrouteigt, Constance
name: Perie, Mathieu
name: Gliksohn, Antoine
name: Jouanne, Béatrice
name: Hadj-Rabia, Smail
name: Arveiler, Benoit
name: Morice-Picard, Fanny
name: Quintard, Bruno
Publisher: name: figshare
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1. NRIPH Attestation: this letter states that the project, led by Hugo Fournier and Bruno Quintard and conducted by the University of Bordeaux, is exempt from ethical review under French Public Health Code Article L1121-1.
The Phase Diagram of the $ν=5/2$ Fractional Quantum Hall Effect: Effects of Landau Level Mixing and Non-Zero Width
Creators: name: Pakrouski, Kiryl
name: Peterson, Michael R.
name: Jolicoeur, Thierry
name: Scarola, Vito W.
name: Nayak, Chetan
name: Troyer, Matthias
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Interesting non-Abelian states, e.g., the Moore-Read Pfaffian and the anti-Pfaffian, offer candidate descriptions of the $ν= 5/2$ fractional quantum Hall state. But the significant controversy surrounding the nature of the $ν= 5/2$ state has been hampered by the fact that the competition between these and other states is affected by small parameter changes. To study the phase diagram of the $ν= 5/2$ state we numerically diagonalize a comprehensive effective Hamiltonian describing the fractional quantum Hall effect of electrons under realistic conditions in GaAs semiconductors. The effective Hamiltonian takes Landau level mixing into account to lowest-order perturbatively in $κ$, the ratio of the Coulomb energy scale to the cyclotron gap. We also incorporate non-zero width $w$ of the quantum well and sub-band mixing. We find the ground state in both the torus and spherical geometries as a function of $κ$ and $w$. To sort out the non-trivial competition between candidate ground states we analyze the following 4 criteria: its overlap with trial wave functions; the magnitude of energy gaps; the sign of the expectation value of an order parameter for particle-hole symmetry breaking; and the entanglement spectrum. We conclude that the ground state is in the universality class of the Moore-Read Pfaffian state, rather than the anti-Pfaffian, for $κ< {κ_c}(w)$, where ${κ_c}(w)$ is a $w$-dependent critical value $0.6 \lesssim{κ_c}(w)\lesssim 1$. We observe that both Landau level mixing and non-zero width suppress the excitation gap, but Landau level mixing has a larger effect in this regard. Our findings have important implications for the identification of non-Abelian fractional quantum Hall states.
description: 16 pages, 17 figures. Added: 1) Appendix D + Fig. 2 discussing planar vs spherical pseudopotentials and thermodynamic limit 2) Fig 8 showing topological gap 3) ancillary text files containing the numerical data for most of the figures