cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
NAUTILOS D1.11 - Data Management Plan 2nd periodic report update
Creators: name: Novellino, Antonio
Publisher: name: Zenodo
Year: 2023

description: This document presents the project Data Management Plan (DMP) updated to month 36. In this version the main updates include the following:

Association of data and metadata with new dois;

Definition of standard vocabularies used for sharing the acquired data;

Application of data management good-practice;

Specification of metadata formats;

Definition of the controlled vocabularies for parameters;

Examples of standardised “Marine litter” data;

Case studies added for Marine litter and Observing Systems;

More detailed description of the Near-real-time data and delayed data;

Detailed and final naming conventions based on catalogues;

Examples of naming conventions;

ERDDAP clarification, adoption and NAUTILOS data example;

Added examples to interact and operate on the platform;

Definition of the data availability from the backend infrastructure also through the NAUTILOS data portal (the front-end);

Extended the definition of tools to access and operate on data;

Definition and examples of the adopted NAUTILOS community on Zenodo;

Specification on Open-Access for NAUTILOS validated data;

Revised cv for the data management responsible person;

Update on ethical aspects covered.
Electromagnetic Excitations and Responses in Nuclei from First Principles
Creators: name: Baker, R. B.
name: Launey, K. D.
name: Dinur, N. Nevo
name: Bacca, S.
name: Draayer, J. P.
name: Dytrych, T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the role of clustering on monopole, dipole, and quadrupole excitations in nuclei in the framework of the ab initio symmetry-adapted no-core shell model (SA-NCSM). The SA-NCSM starts from nucleon-nucleon potentials and, by exploring symmetries known to dominate the nuclear dynamics, can reach nuclei up through the calcium region by accommodating ultra-large model spaces critical to descriptions of clustering and collectivity. The results are based on calculations of electromagnetic sum rules and discretized responses using the Lanczos algorithm, that can be used to determine response functions, and for 4He are benchmarked against exact solutions of the hyperspherical harmonics method. In particular, we focus on He, Be, and O isotopes, including giant resonances and monopole sum rules.
description: 6 pages, 4 figures, Proceedings of the Fourth International Workshop on State of the Art in Nuclear Cluster Physics, Galveston, TX, USA, May 13-18, 2018
"It Brought the Model to Life": Exploring the Embodiment of Multimodal I3Ms for People who are Blind or have Low Vision
Creators: name: Reinders, Samuel
name: Butler, Matthew
name: Marriott, Kim
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: 3D-printed models are increasingly used to provide people who are blind or have low vision (BLV) with access to maps, educational materials, and museum exhibits. Recent research has explored interactive 3D-printed models (I3Ms) that integrate touch gestures, conversational dialogue, and haptic vibratory feedback to create more engaging interfaces. Prior research with sighted people has found that imbuing machines with human-like behaviours, i.e., embodying them, can make them appear more lifelike, increasing social perception and presence. Such embodiment can increase engagement and trust. This work presents the first exploration into the design of embodied I3Ms and their impact on BLV engagement and trust. In a controlled study with 12 BLV participants, we found that I3Ms using specific embodiment design factors, such as haptic vibratory and embodied personified voices, led to an increased sense of liveliness and embodiment, as well as engagement, but had mixed impact on trust.
description: Conditionally Accepted to appear at ACM CHI Conference on Human Factors in Computing Systems (CHI '25), April 26 - May 1, 2025, Yokohama, Japan
Survival Analysis, Master Equation, Efficient Simulation of Path-Related Quantities, and Hidden State Concept of Transitions
Creators: name: Helbing, Dirk
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This paper presents and derives the interrelations between survival analysis and master equation. Survival analysis deals with modeling the transitions between succeeding states of a system in terms of hazard rates. Questions related with this are the timing and sequencing of the states of a time series. The frequency and characteristics of time series can be investigated by Monte-Carlo simulations. If one is interested in cross-sectional data connected with the stochastic process under consideration, one needs to know the temporal evolution of the distribution of states. This can be obtained by simulation of the associated master equation. Some new formulas allow the determination of path-related (i.e. longitudinal) quantities like the occurence probability, the occurence time distribution, or the effective cumulative life-time distribution of a certain sequencing of states (path). These can be efficiently evaluated with a recently developed simulation tool (EPIS). The effective cumulative life-time distribution facilitates the formulation of a hidden state concept of behavioral changes which allows an interpretation of the respective time-dependence of hazard rates. Hidden states represent states which are either not phenomenological distinguishable from other states, not externally measurable, or simply not detected.
description: For related work see http://www.theo2.physik.uni-stuttgart.de/helbing.html
ПРОГРЕСС В ОБЛАСТИ ЭНДОВАСКУЛЯРНЫХ ТЕХНИК ДЛЯ ЛЕЧЕНИЯ КРИТИЧЕСКИХ СОСТОЯНИЙ КАРДИОВАСКУЛЯРНОЙ СИСТЕМЫ У ЛЮДЕЙ И ОБЗОР ПОТЕНЦИАЛЬНЫХ РИСКОВ ОСЛОЖНЕНИЙ.
Creators: name: Бахронов, Шердил
Publisher: name: Zenodo
Year: 2024

description: В последние десятилетия исследования медицинской отрасли науки дают новые более эффективные и высокотехнологичные способы лечения заболеваний сердечно-сосудистой системы человека. При этом технологии обеспечения лечебного процесса современными высококачественными и скоростными диагностическими приборами и оборудованием, средствами лечения, медицинскими препаратами тоже развиваются интенсивно. Как показывает анализ специальной медицинской литературы, научных публикаций за последние десятилетия в медицинской отрасли многих стран, в основном технологически развитых стран произошли большие изменения в лечении тяжелых сердечно-сосудистых заболеваний. Очень большими темпами развиваются рентгенэндоваскулярные методы диагностики и лечения, обеспеченные высококачественными и скоростными диагностическими приборами и оборудованием.
Experimental Evidence for Coulomb Charging Effects in the Submicron Bi-2212 Stacks
Creators: name: Latyshev, Yu. I.
name: Kim, S. -J.
name: Yamashita, T.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We developed the focused ion beam (FIB) and ion milling techniques for a fabrication of the Bi_2Sr_2CaCu_2O_{8+δ} (Bi-2212) stacked junctions with in-plane size L_{ab} from several microns down to the submicron scale without degradation of T_c. We found that behaviour of submicron junctions (L_{ab} < 1 μm) is quite different from the bigger ones. The critical current density is considerably suppressed, the hysteresis and multibranched structure of the IV characteristics are eliminated, the periodic structure of current peaks reproducibly appears on the IV curves at low temperatures. A period of the structure, ΔV, is consistent with the Coulomb charging energy of a single pair, ΔV = e/C with C the effective capacitance of the stack. We consider this behaviour to originate from the Coulomb blockade of the intrinsic Josephson tunneling in submicron Bi-2212 stacks.
description: 13 pp, incl. 1 table and 4 figs
DMS Accelerator monitoring data
Creators: name: Priestley, Maria
Publisher: name: Zenodo
Year: 2021
Subjects: open innovation
business accelerators
startups & SMEs

description: This project contains extended data to support the article "Measuring the impact of publicly funded open innovation programmes: the case of Data Market Services Accelerator" by Priestley M, Simperl E, Juc C and Anguiano M. Open Research Europe 2021, 1:71 (https://doi.org/10.12688/openreseurope.13621.1) The following documents are provided: DMS Impact Survey template (for cohorts 1 and 2) DMS Needs Analysis Survey template DMS workshop template DMS service engagement data (for webinars and courses delivered to cohorts 1 and 2) The templates and engagement data are available under the terms of the Creative Commons Attribution 4.0 International license (CC-BY 4.0). The underlying survey data cannot be shared openly due to small sample sizes and the respondents' public affiliation with DMS Accelerator. In order to prevent the possibility of de-anonymisation and to protect commercially sensitive data, access to these data is controlled. The workshop reports cannot be published because they are embedded in deliverables whose dissemination level is classified as “Confidential” in the project. A redacted version of the reports can be provided upon request. Access to the anonymised survey and workshop data can be requested by emailing maria.1.priestley@kcl.ac.uk and manguiano@zabala.es. Maria Priestley and María Anguiano will evaluate each request and provide access to trusted parties who want to use the data for justified and compatible purposes (e.g. colleagues who want to undertake a comparative research study or a review). Additional information regarding DMS Accelerator is available at: https://cordis.europa.eu/project/id/825014
The Impact of Digital Transformation on Business, Education, and Healthcare
Creators: name: International Journal of Multidisciplinary Advance Research, Emmanuelle Charpentier
Publisher: name: Prahi Publication
Year: 2025
Subjects: Highlights the benefits, challenges, and future prospects

description: Digital transformation is reshaping industries worldwide, enhancing efficiency, productivity, and service delivery. This research examines the impact of digital transformation in three key sectors: business, education, and healthcare. Through a comprehensive literature review, case studies, and an analysis of emerging trends, this study highlights the benefits, challenges, and future prospects of digital integration. The findings suggest that while digital transformation presents significant opportunities, it also necessitates strategic adaptation to overcome barriers related to infrastructure, cybersecurity, and digital literacy.
Deep learning based infrared small object segmentation: Challenges and future directions
Creators: name: Yang, Zhengeng
name: Yu, Hongshan
name: Zhang, Jianjun
name: Tang, Qiang
name: Mian, Ajmal
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Infrared sensing is a core method for supporting unmanned systems, such as autonomous vehicles and drones. Recently, infrared sensors have been widely deployed on mobile and stationary platforms for detection and classification of objects from long distances and in wide field of views. Given its success in the vision image analysis domain, deep learning has also been applied for object recognition in infrared images. However, techniques that have proven successful in visible light perception face new challenges in the infrared domain. These challenges include extremely low signal-to-noise ratios in infrared images, very small and blurred objects of interest, and limited availability of labeled/unlabeled training data due to the specialized nature of infrared sensors. Numerous methods have been proposed in the literature for the detection and classification of small objects in infrared images achieving varied levels of success. There is a need for a survey paper that critically analyzes existing techniques in this domain, identifies unsolved challenges and provides future research directions. This paper fills the gap and offers a concise and insightful review of deep learning-based methods. It also identifies the challenges faced by existing infrared object segmentation methods and provides a structured review of existing infrared perception methods from the perspective of these challenges and highlights the motivations behind the various approaches. Finally, this review suggests promising future directions based on recent advancements within this domain.
description: This is a submitted version of a paper accepted by Information Fusion. If you want a better reading experience, please refer to the final published version of Information Fusion
Alternative method for deriving nonlocal multipartite product states
Creators: name: Li, Mao-Sheng
name: Wang, Yan-Ling
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We can only perform a finite rounds of measurements in protocols with local operations and classical communication (LOCC). In this paper, we propose a set of product states, which require infinite rounds of measurements in order to distinguish this given set of states perfectly by LOCC. Therefore, we can conclude that these sets of states are locally indistinguishable. More accurately, given any multipartite LOCC indistinguishable set where every local system cannot start with a nontrivial measurement, then after appending these states with arbitrarily choosing two nonorthogonal states, we obtain another LOCC indistinguishable set. It can be seen that some parties can perform some nontrivial measurements. Hence, these sets are quite different from those constructed before. This result broadens the knowledge of nonlocality without entanglement to a certain extent.
description: 7 pages, 2 figures
Gravitomagnetism, clocks and geometry
Creators: name: Tartaglia, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: New techniques to evaluate the clock effect using light are described. These are based on the flatness of the cylindrical surface containing the world lines of the rays constrained to move on circular trajectories about a spinning mass. The effect of the angular momentum of the source is manifested in the fact that inertial observers must be replaced by local non rotating observers. Starting from this an exact formula for circular trajectories is found. Numerical estimates for the Earth environment show that light would be a better probe than actual clocks to evidence the angular momentum influence. The advantages of light in connection with some principle experiments are shortly reviewed.
description: TCI Latex, 12 pages, 2 figures. To appear in European Journal of Physics
Recensione a M. Mustè, Marxismo e filosofia della praxis. Da Labriola a Gramsci
Creators: name: Pitillo, Federica
Publisher: name: Zenodo
Year: 2019

description: Se dovessimo coniare una formula capace di riassumere la parabola del marxismo teorico in Italia nel quarantennio che va dal 1895 (anno di pubblicazione del primo saggio sul materialismo storico di Antonio Labriola) al 1935 (anno di composizione delle ultime note dal carcere di Antonio Gramsci), allora non potremmo fare a meno di ricorrere all’espressione “filosofia della praxis”. Lungi dal configurarsi come un mero espediente linguistico, questa formula racchiude infatti il senso complessivo del marxismo italiano nel significativo passaggio fra Ottocento e Novecento, le cui vicende sono oggetto della interessante ricostruzione proposta in questo volume da Marcello Must., autore di svariati studi sulla storia della filosofia italiana, tra cui vale la pena menzionare le monografie dedicate a Felice Balbo (2016), Benedetto Croce (2009), Vincenzo Gioberti (2000), Franco Rodano (1993) e Adolfo Omodeo (1990). Rispetto alle coeve riflessioni europee – ed . questa la tesi principale del libro – il marxismo italiano pu. rivendicare a buon diritto una storia a s., in quanto si fece promotore di una prospettiva critica e originale. La peculiarit. italiana risiederebbe, secondo Must., in una duplice istanza critica: da una parte, la messa in discussione del materialismo come nucleo filosofico del pensiero di Marx e la conseguente ricerca di un’altra fonte capace di restituire il significato filosofico dell’edificio teorico marxiano; dall’altra, la mediazione del marxismo con la tradizione filosofica italiana, in modo particolare con pensatori come Bruno, Vico e Machiavelli. Prover. a restituire le principali coordinate teoriche del volume senza alcuna pretesa di esaustivit., data la complessit. del tema e la variet. degli autori trattati
Annona neoelliptica H. Rainer & Maas
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Annona
Annona neoelliptica

description: [32] Annona neoelliptica H.Rainer & Maas
 Ann. Naturhist. Mus.Wien 108B: 199 (Rainer & Maas 2007). — Rollinia elliptica R.E.Fr., Acta Horti Berg. 12 (1): 160 (Fries 1934).
NOTE. — Known only from the Guiana Shield.
 HERBARIUM DATA (FG). — 12 collections at CAY. Sel. exs.: P.J.M. Maas et al. 8062.
INVENTORY DATA (FG). — 9 trees in 7 plots; Fmax <1 %; dbhinv = 42.5 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on pages 369-370, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Dynamic image potential at an Al(111) surface
Creators: name: White, I. D.
name: Godby, R. W.
name: Rieger, M. M.
name: Needs, R. J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We evaluate the electronic self-energy Sigma(E) at an Al(111) surface using the GW space-time method. This self-energy automatically includes the image potential V_{im} not present in any local-density approximation for exchange and correlation. We solve the energy-dependent quasiparticle equations to obtain surface state wavefunctions, and calculate the effective local potential experienced by electrons in the near-surface region. We find that V_{im} for unoccupied states is due to correlation (not exchange). The image-plane position for interacting electrons is considerably closer to the surface than for the purely electrostatic effects felt by test charges, and, like its classical counterpart, is drawn inwards by the effects of atomic structure.
description: 5 pages, 3 figures
Multi-dark soliton solutions for the multi-component coupled Maccari system
Creators: name: Xu, Tao
name: Chen, Yong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Based on the KP hierarchy reduction method, the general multi-dark soliton solutions in Gram type determinant forms for the multi-component coupled Maccari system are constructed. Especially, the three-component coupled Maccari system comprised of two-component short waves and single-component long waves are discussed in detail. Besides, the dynamics of one and two dark-dark solitons are analyzed. It is shown that the collisions of two dark-dark solitons are elastic by asymptotic analysis. Additionally, the two dark-dark solitons bound states are studied through two different cases (stationary and moving cases). The bound states can exist up to arbitrary order in the stationary case, however, only two-soliton bound state exists in the moving case. Besides, the oblique stationary bound state can be generated for all possible combinations of nonlinearity coefficients consisted of positive, negative and mixed cases. Nevertheless, the parallel stationary and the moving bound states are only possible when nonlinearity coefficients take opposite signs.
Efficiency of Photovoltaic Systems in Mountainous Areas
Creators: name: Chitturi, Sri Rama Phanindra
name: Sharma, Ekanki
name: Elmenreich, Wilfried
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Photovoltaic (PV) systems have received much attention in recent years due to their ability of efficiently converting solar power into electricity, which offers important benefits to the environment. PV systems in regions with high solar irradiation can produce a higher output but the temperature affects their performance. This paper presents a study on the effect of cold climate at high altitude on the PV system output. We report a comparative case study, which presents measurement results at two distinct sites, one at a height of 612 meters and another one at a mountain site at a height of 1764 meters. This case study applies the maximum power point tracking (MPPT) technique in order to determine maximum power from the PV panel at different azimuth and altitude angles. We used an Arduino system to measure and display the attributes of the PV system. The measurement results indicate an increased efficiency of 42% for PV systems at higher altitude.
Classical T-Tauri stars with VPHAS+: II: NGC 6383 in Sh 2-012
Creators: name: Kalari, V. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper presents optical ($ugri$H$α$)-infrared ($JHK$s,3.6--8.0$μ$m) photometry, and $Gaia$ astrometry of 55 Classical T-Tauri stars (CTTS) in the star-forming region Sh 2-012, and it's central cluster NGC 6383. The sample was identified based on photometric H$α$ emission line widths, and has a median age of 2.8$\pm$1.6 Myr, with a mass range between 0.3-1 $M_{\odot}$. 94% of CTTS with near-infrared cross-matches fall on the near-infrared T-Tauri locus, with all stars having mid-infrared photometry exhibiting evidence for accreting circumstellar discs. CTTS are found concentrated around the central cluster NGC 6383, and towards the bright rims located at the edges of Sh 2-012. Stars across the region have similar ages, suggestive of a single burst of star formation. Mass accretion rates ($\dot{M}_{\textrm{acc}}$) estimated via H$α$ and $u$-band line intensities show a scatter (0.3 dex) similar to spectroscopic studies, indicating the suitability of H$α$ photometry to estimate $\dot{M}_{\textrm{acc}}$. Examining the variation of $\dot{M}_{\textrm{acc}}$ with stellar mass ($M_{\ast}$), we find a smaller intercept in the $\dot{M}_{\textrm{acc}}$-$M_{\ast}$ relation than oft-quoted in the literature, providing evidence to discriminate between competing theories of protoplanetary disc evolution.
description: Accepted for publication in MNRAS; 12 pages, 9 figures; Table 1 is published in electronic form only along with the source code
Classical Spin Liquid: Exact Solution for the Infinite-Component Antiferromagnetic Model on the Kagomé Lattice
Creators: name: Garanin, D. A.
name: Canals, Benjamin
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Thermodynamic quantities and correlation functions (CFs) of the classical antiferromagnet on the kagomé lattice are studied for the exactly solvable infinite-component spin-vector model, D \to \infty. In this limit, the critical coupling of fluctuations dies out and the critical behavior simplifies, but the effect of would be Goldstone modes preventing ordering at any nonzero temperature is properly accounted for. In contrast to conventional two-dimensional magnets with continuous symmetry showing extended short-range order at distances smaller than the correlation length, r < ξ_c \propto \exp(T^*/T), correlations in the kagomé-lattice model decay already at the scale of the lattice spacing due to the strong degeneracy of the ground state characterized by a macroscopic number of strongly fluctuating local degrees of freedom. At low temperatures, spin CFs decay as \propto 1/r^2 in the range a_0 << r << ξ_c \propto T^{-1/2}, where a_0 is the lattice spacing. Analytical results for the principal thermodynamic quantities in our model are in fairly good quantitative agreement with the MC simulations for the classical Heisenberg model, D=3. The neutron scattering cross section has its maxima beyond the first Brillouin zone; at T\to 0 it becomes nonanalytic but does not diverge at any q.
description: 14 PR pages, 10 figures; Phys. Rev. B; Version 3: final published version
Confinement-deconfinement transition in two-coupled chains with umklapp scattering
Creators: name: Tsuchiizu, M.
name: Suzumura, Y.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A role of umklapp scattering has been examined for two-coupled chains with both forward and backward scatterings by applying renormalization group method to bosonized Hamiltonian. It has been found that a state with relevant interchain hopping changes into a state with irrelevant (confined) one when the magnitude of umklapp scattering becomes larger than that of interchain hopping. Critical value of umklapp scattering for such a confinement-deconfinement transition is calculated as the function of interchain hopping and intrachain interactions. A crossover from one-dimensional regime into that of coupled chains is also shown with decreasing temperature.
description: 13 pages, 7 figures, to be published in Phys. Rev. B
The first Super Massive Black Holes: indications from models for future observations
Creators: name: Amarantidis, Stergios
name: Afonso, José
name: Messias, Hugo
name: Henriques, Bruno
name: Griffin, Andrew
name: Lacey, Cedric
name: Lagos, Claudia del P.
name: Gonzalez-Perez, Violeta
name: Dubois, Yohan
name: Volonteri, Marta
name: Matute, Israel
name: Pappalardo, Ciro
name: Qin, Yuxiang
name: Chary, Ranga-Ram
name: Norris, Ray P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an exploration of the expected detection of the earliest Active Galactic Nuclei (AGN) in the Universe from state-of-art galaxy formation and evolution semi-analytic models and hydro-dynamical simulations. We estimate the number and radiative characteristics of Super Massive Black Holes (SMBHs) at $z\geq 6$, a redshift range that will be intensively explored by the next generation of telescopes, in particular in the radio through the Square Kilometre Array (SKA) and at high energies with ESA's Athena X-ray Observatory. We find that Athena will be able to observe over 5000 AGN/$\rm deg^2$ at the Epoch of Re-ionization (EoR), $6\leq z \leq 10$. Similarly, for the same redshift range the models/simulations suggest that SKA will detect at least 400 AGN/$\rm deg^2$. Additionally, we stress the importance of the volume of the simulation box as well as the initial physical conditions of the models/simulations on their effect on the luminosity functions (LFs) and the creation of the most massive SMBHs that we currently observe at the EoR. Furthermore, following the evolution of the accretion mode of the SMBHs in each model/simulation, we show that, while the quasar dominates over the radio mode at the EoR, detection at radio wavelengths still reaches significant numbers even at the highest redshifts. Finally, we present the effect that the radiative efficiency has on the LFs by comparing results produced with a constant value for the radiative efficiency and more complex calculations based on the spin of each SMBH.
description: Accepted for publication in MNRAS, 17 pages, 8 figures, 2 tables
The elementary spike produced by a pure $e^+e^-$ pair-electromagnetic pulse from a Black Hole: The PEM Pulse
Creators: name: Bianco, Carlo Luciano
name: Ruffini, Remo
name: Xue, She-Sheng
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the framework of the model that uses black holes endowed with electromagnetic structure (EMBH) as the energy source, we study how an elementary spike appears to the detectors. We consider the simplest possible case of a pulse produced by a pure $e^+e^-$ pair-electro-magnetic plasma, the PEM pulse, in the absence of any baryonic matter. The resulting time profiles show a {\em Fast-Rise-Exponential-Decay} shape, followed by a power-law tail. This is obtained without any special fitting procedure, but only by fixing the energetics of the process taking place in a given EMBH of selected mass, varying in the range from 10 to $10^3$ $M_\odot$ and considering the relativistic effects to be expected in an electron-positron plasma gradually reaching transparency. Special attention is given to the contributions from all regimes with Lorentz $γ$ factor varying from $γ=1$ to $γ=10^4$ in a few hundreds of the PEM pulse travel time. Although the main goal of this paper is to obtain the elementary spike intensity as a function of the arrival time, and its observed duration, some qualitative considerations are also presented regarding the expected spectrum and on its departure from the thermal one. The results of this paper will be comparable, when data will become available, with a subfamily of particularly short GRBs not followed by any afterglow. They can also be propedeutical to the study of longer bursts in presence of baryonic matter currently observed in GRBs.
description: 14 pages, 18 figures, to appear in Astronomy & Astrophysics
The AGN fuelling/feedback cycle in nearby radio galaxies - I. ALMA observations and early results
Creators: name: Ruffa, Ilaria
name: Prandoni, Isabella
name: Laing, Robert A.
name: Paladino, Rosita
name: Parma, Paola
name: de Ruiter, Hans
name: Mignano, Arturo
name: Davis, Timothy A.
name: Bureau, Martin
name: Warren, Joshua
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This is the first paper of a series exploring the multi-frequency properties of a sample of eleven nearby low excitation radio galaxies (LERGs) in the southern sky. We are conducting an extensive study of different galaxy components (stars, warm and cold gas, radio jets) with the aim of improving our understanding of the AGN fuelling/feedback cycle in LERGs. We present ALMA Band 6 $^{12}$CO(2-1) and continuum observations of nine sources. Continuum emission from the radio cores was detected in all objects. Six sources also show mm emission from jets on kpc/sub-kpc scales. The jet structures are very similar at mm and cm wavelengths. We conclude that synchrotron emission associated with the radio jets dominates the continuum spectra up to 230 GHz. The $^{12}$CO(2-1) line was detected in emission in six out of nine objects, with molecular gas masses ranging from $2 \times 10^{7}$ to $2 \times 10^{10}$ M$_{\rm \odot}$. The CO detections show disc-like structures on scales from $\approx$0.2 to $\approx$10 kpc. In one case (NGC 3100) the CO disc presents some asymmetries and is disrupted in the direction of the northern radio jet, indicating a possible jet/disc interaction. In IC 4296, CO is detected in absorption against the radio core, as well as in emission. In four of the six galaxies with CO detections, the gas rotation axes are roughly parallel to the radio jets in projection; the remaining two cases show large misalignments. In those objects where optical imaging is available, dust and CO appear to be co-spatial.
description: Accepted for publication in MNRAS. The Appendix is provided as on-line only supplementary material
Resonant absorption at the vortex-core states in d-wave superconductors
Creators: name: Kopnin, N. B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We predict a resonant microwave absorption on collective vortex modes in a superclean d-wave superconductor. Energies of the collective modes are multiples of the distance between the exact quantum levels of bound states in the vortex core at lower temperatures and involve delocalized states for higher temperatures. We calculate the vortex mass in a d-wave superconductor as a response to a slow acceleration of the vortex. The universal flux-flow regime predicted by N. Kopnin and G. Volovik [Phys. Rev. Lett. 79, 1377 (1997)] is discussed in more detail.
description: RevTex file, 10 pages
Violation of the Fluctuation-Dissipation Theorem in a Two-Dimensional Ising Model with Dipolar Interactions
Creators: name: Stariolo, Daniel A.
name: Cannas, Sergio A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The violation of the Fluctuation-Dissipation Theorem (FDT) in a two-dimensional Ising model with both ferromagnetic exchange and antiferromagnetic dipolar interactions is established and investigated via Monte Carlo simulations. Through the computation of the autocorrelation C(t+t_w,t_w) and the integrated response (susceptibility) functions we obtain the FDT violation factor X(t+t_w,t_w) for different values of the temperature, the waiting time t_w and the quotient delta=J_0/J_d, J_0 and J_d being the strength of exchange and dipolar interactions respectively. For positive values of delta this system develops a striped phase at low temperatures, in which the non-equilibrium dynamics presents two different regimes. Our results show that such different regimes are not reflected in the FDT violation factor, where X goes always to zero for high values of t_w in the aging regime, a result that appears in domain growth processes in non-frustrated ordered systems.
description: 5 pages (Revtex) and 3 figures (.ps)
Temperature oscillations of a gas moving close to circular geodesic in Reissner-Nordström spacetime
Creators: name: Mehret, Leandro C.
name: Kremer, Gilberto M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The objective of this work is to analyze the temperature oscillations that occur in a gas in a circular motion under the action of a Reissner-Nordström gravitational field, verifying the effect of the charge term of the metric on the oscillations. The expression for temperature oscillations follows from Tolman's law written in Fermi normal coordinates for a comoving observer. The motion of the gas is close to geodesic so the equation of geodesic deviation was used to obtain the expression for temperature oscillations. Then these oscillations are calculated for some compact stars, quark stars, black holes and white dwarfs, using values of electric charge and mass from models found in the literature. Comparing the various models analyzed, it is possible to verify that the role of the charge is the opposite of the mass. While the increase of the mass produces a reduction in the frequencies, amplitude and in the ratio between the frequencies, the increase of the electric charge produces the inverse effect. In addition, it is shown that if the electric charge is proportional to the mass, the ratio between the frequencies does not depend on the mass, but only on the proportionality factor between charge and mass. The ratios between the frequencies for all the models analyzed (except for supermassive black holes in the extreme limit situations) are close to the $3/2$ ratio for twin peak quasi-periodic oscillation frequencies, observed in many galactic black holes and neutron star sources in low-mass X-ray binaries.
description: 24 pages, 5 figures to appear in IJMPD
How ‘global’ are investment banks? An analysis of investment banking networks in Asian equity capital markets
Creators: name: Kurtuluş Gemici
name: Lai, Karen P. Y.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: This paper examines the distribution of power within financial networks of investment banks in equity capital markets of three key economies in Asia: Hong Kong, Japan and Singapore. Using social network analysis, it shows that while bulge-bracket banks occupy core positions in all three locations, their dominance is challenged by emerging Asian investment banks. The equity capital market networks of investment banks are strongly shaped by development trajectory and regional contexts of specific international financial centres, which reveals the differentiated nature of finance across Asia. Results also highlight the need for further research on networks within financial centres in addition to inter-city networks in order to understand the roles and development of international financial centres.
A probabilistic formulation for Empirical Population Synthesis: Sampling methods and tests
Creators: name: Fernandes, Roberto Cid
name: Sodre, Laerte
name: Schmitt, Henrique
name: Leao, Joao
name: .
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a probabilistic formulation of the classical problem of synthesizing spectral properties of a galaxy using a base of star clusters. The problem consists of estimating the population vector x, composed by the contributions of n_star base elements to the integrated spectrum of a galaxy, and the extinction A_V, given a set of absorption line equivalent widths and continuum colors. The formalism is applied to the n_star = 12 base defined by Schmidt etal and subsequently used in several studies. The 13-D parameter space is explored with a Markov chain Monte Carlo sampling scheme based on the Metropolis algorithm, which produces a smooth and efficient mapping of the P(x,A_V) probability distribution. This version of Empirical Population Synthesis is used to investigate the ability to recover the detailed history of star-formation and chemical evolution using this spectral base. This is studied as a function of (1) the magnitude of the measurement errors and (2) the set of observables used in the synthesis. Only for extremely high S/N all 12 base proportions can be accurately recovered, though the observables are very precisely reproduced for any S/N. Furthermore, the individual mean x components are biased in the sense that components which carry a large fraction of the light tend to share their contribution preferably among components of same age. This compensation effect is linked to noise-induced linear dependences in the base, which very effectively redistribute the likelihood in x-space. The age distribution, however, can be satisfactorily recovered for realistic data quality. (abridged)
description: 22 pages, 12 figs. MNRAS accepted
Annona paludosa Aubl.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Annona
Annona paludosa

description: [33] Annona paludosa Aubl.
 Hist. Pl. Guiane 1: 611 [Jun.-Dec. 1775] (Aublet 1775).
NOTE. — Restricted to coastal marsh forests.
VERNACULAR NAMES. — Pa: kasim • Cr: dji-manmen • Br: araticúdo-brejo.
 HERBARIUM DATA (FG). — 41 collections at CAY. Sel. exs.: J.B. Aublet s.n. (original material MPU?[MPU014808]).
 SIZE. — Brazil, Maranhão. N.A. Rosa 2812 (MO), 12 m × 40 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 370, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
On the Unbiasedness of Iterated GLS Estimators
Creators: name: Don, F
name: Magnus, Jan
name: Don, F
name: Magnus, Jan
Publisher: name: Unknown
Year: 1977
Subjects: subject: Research Methods/ Statistical Methods
subject: Iterated GLS
subject: unbiasedness
subject: maximum likelihood

description: In 1967 Kakwani showed that any estimator which has a sampling error of the form H(06 is unbiased, provided that the estimator has a finite expectation, H is even, and E symmetrically distributed about zero. Fuller and Battese (1973) used this result to establish unbiasedness of the GLS estimator in a variance components model, and Mehta and Swamy (1976) did the same for a variant of Zellner's two-step estimator under normality. In this paper we prove that Kakwani's result is applicable to the iterated GLS estimators at each step of the iteration, and conditions for the finiteness of the expectations are derived, implying unbiasedness of the iterated GLS estimators under certain stated conditions. Assuming normal disturbances, unbiasedness of the maximum likelihood estimator is proved under assumptions earlier made by Oberhofer and Kmenta (1974) to guarantee convergence of the iteration procedure to the solution of the ML-equations.
Influence of Hybridization on the Properties of the Spinless Falicov-Kimball Model
Creators: name: Czycholl, G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Without a hybridization between the localized f- and the conduction (c-) electron states the spinless Falicov-Kimball model (FKM) is exactly solvable in the limit of high spatial dimension, as first shown by Brandt and Mielsch. Here I show that at least for sufficiently small c-f-interaction this exact inhomogeneous ground state is also obtained in Hartree-Fock approximation. With hybridization the model is no longer exactly solvable, but the approximation yields that the inhomogeneous charge-density wave (CDW) ground state remains stable also for finite hybridization V smaller than a critical hybridization V_c, above which no inhomogeneous CDW solution but only a homogeneous solution is obtained. The spinless FKM does not allow for a ''ferroelectric'' ground state with a spontaneous polarization, i.e. there is no nonvanishing $$-expectation value in the limit of vanishing hybridization.
description: 7 pages, 6 figures
Annona prevostiae H. Rainer
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Annona
Annona prevostiae

description: [34] Annona prevostiae H.Rainer
 Brittonia 54 (2): 136 (Rainer 2002).
NOTE. — Known only from French Guiana.
 HERBARIUM DATA (FG). — 21 collections at CAY. Sel. exs.: M.- F. Prévost 3742 (holo-, CAY [CAY018189]; iso-, NY [not seen], WU [WU0026227, not seen]).
INVENTORY DATA (FG). — 16 trees in 12 plots; Fmax <1 %; dbhinv = 36.6 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 370, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Variability and Proper Motion of X-ray Knots in the Jet of Centaurus A
Creators: name: Snios, Bradford
name: Wykes, Sarka
name: Nulsen, Paul E. J.
name: Kraft, Ralph P.
name: Meyer, Eileen T.
name: Birkinshaw, Mark
name: Worrall, Diana M.
name: Hardcastle, Martin J.
name: Roediger, Elke
name: Forman, William R.
name: Jones, Christine
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results from Chandra observations analyzed for evidence of variability and proper motion in the X-ray jet of Centaurus A. Using data spanning 15 years, collective proper motion of $11.3\pm3.3$ mas yr$^{-1}$, or $0.68\pm0.20c$, is detected for the fainter X-ray knots and other substructure present within the jet. The three brightest knots (AX1A, AX1C, and BX2) are found to be stationary to an upper limit of $0.10c$. Brightness variations up to 27% are detected for several X-ray knots in the jet. For the fading knots, BX2 and AX1C, the changes in spectral slope expected to accompany synchrotron cooling are not found, ruling it out and placing upper limits of $\simeq 80\rm\ μG$ for each of their magnetic field strengths. Adiabatic expansion can account for the observed decreases in brightness. Constraints on models for the origin of the knots are established. Jet plasma overrunning an obstacle is favored as the generator of stationary knots, while moving knots are likely produced either by internal differences in jet speed or the late stages of jet interaction with nebular or cloud material.
description: Accepted to ApJ, 14 pages, 8 figures, 2 tables
Optical turbulence forecast in the Adaptive Optics realm
Creators: name: Masciadri, Elena
name: Turchi, Alessio
name: Fini, Luca
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: (35-words maximum) In this talk I present the scientific drivers related to the optical turbulence forecast applied to the ground-based astronomy supported by Adaptive Optics, the state of the art of the achieved results and the most relevant challenges for future progresses.
description: 1 figure, Orlando, Florida United States, 25 - 28 June 2018, ISBN: 978-1-943580-44-6,Turbulence & Propagation, JW5I.1 Adaptive Optics: Analysis, Methods and Systems
Quantum Phase Transitions and the Breakdown of Classical General Relativity
Creators: name: Chapline, G.
name: Hohlfeld, E.
name: Laughlin, R. B.
name: Santiago, D. I.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: It is proposed that the event horizon of a black hole is a quantum phase transition of the vacuum of space-time analogous to the liquid-vapor critical point of a bose fluid. The equations of classical general relativity remain valid arbitrarily close to the horizon yet fail there through the divergence of a characteristic coherence length. The integrity of global time, required for conventional quantum mechanics to be defined, is maintained. The metric inside the event horizon is different from that predicted by classical general relativity and may be de Sitter space. The deviations from classical behavior lead to distinct spectroscopic and bolometric signatures that can, in principle, be observed at large distances from the black hole.
description: 11 pages of RevTeX, 9 eps figures