cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Collinear laser spectroscopy of scandium and yttrium isotopes at IGISOL IV
Creators: name: Vormawah, LJ
Publisher: name: University of Liverpool Repository
Year: 2017

description: This thesis presents the results of two separate collinear laser spectroscopy investigations; one of proton-neutron pairing correlations in the odd-odd self-conjugate nucleus 42Sc, and the other investigating the charge radii of neutron-rich Y isotopes and the sudden onset of nuclear deformation in the Z~40, N~60 region of the nuclear chart. For the first time, the 42g,42mSc isomer shift, and corresponding change in mean-square charge radius, has been studied via collinear laser spectroscopy at IGISOL IV. The result for the change in mean-square charge radius supports the qualitative prediction given by the intuitive picture of proton-neutron pairing, in which the nuclear charge radius should be greater for an I=0, T=1 nuclear state than an I≠0, T=0 state. This result is also, qualitatively speaking at least, in agreement with the results of previous proton-neutron pairing studies, namely studies of the charge radii of 38g,38mK and 50g,50mMn. In addition to this, new values of the atomic factors for the mass and field shift, F and M, have allowed for a recalibration of the Sc charge radii measured previously on the same atomic transition as used here. Spectroscopy has been performed on radioactive Y2+ ions for the first time. The motivation for this was to recalibrate previously measured charge radii for 86-90,92-102Y and isomeric states in 87-90,93,96,98Y, which were measured on the 363.3nm 5s2 S0 → 4d5p 1P1 transition occurring in the Y+ ion. The complexity of this transition hindered the ability to reliably calculate the atomic mass and field shift factors, which are necessary for extraction of nuclear charge radii.
Supplementary document for Theoretical analysis for estimating laser integrated linewidth via frequency-noise power spectral density - 7165354.pdf
Creators: name: Ma, Jian-Yu
name: Zhan, Xiao-Hai
name: Wang, Shuang
name: Yin, Zhen-Qiang
name: Chen, Wei
name: Han, Zhen-fu
name: Guo, Guang-can
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: the derivation procedure of the Gaussian approximation
Cuspate-lobate folding in glacial sediments revealed by a small-scale 3-D seismic survey
Creators: name: Buness, Hermann
name: Tanner, David Colin
name: Burschil, Thomas
name: Gabriel, Gerald
name: Wielandt-Schuster, Ulrike
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2022
Subjects: subject: 3-D seismic data
subject: CRS-processing
subject: Cuspate-lobate folding
subject: Electrodynamic seismic vibrator
subject: Glacial sediments
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: We carried out a small-scale 3-D seismic survey (120 × 120 m2, bin size 1.5 m) in advance of a research borehole. The target consists of 150 m of Quaternary sediments in a glacially overdeepened valley. We used a wheelbarrow-mounted electrodynamic vibrator as seismic source and chose a simple orthogonal layout. During one week of acquisition, we fired 1024 shots into 384 vertical geophones. The key processing step was the interpolation and regularization of traces, realized by common reflection surface (CRS) processing. This enhances data quality in low fold regions at small offsets. Despite the small source, the entire Quaternary fill and the base of the valley is imaged well. At a depth of 20–50 m, glaciotectonic deformation, in the form of cuspate-lobate folds, is visible, which was not recognized previously in a 2-D seismic profile that runs along the edge of the 3-D area. The folding indicates that compressional glacial stresses acted on layers of stiff till and less competent clastics. We interpret that the varying fold axes' directions indicate varying stress fields during the Last Glacial Maximum. Cuspate-lobate folding has hitherto not been used to describe the deformation of glacial sediments.
High statistics study of f_0(980) resonance in gamma gamma --> pi^+ pi^- production
Creators: name: The Belle Collaboration
name: Abe, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on a high statistics measurement of the cross section of the process gamma gamma to pi^+ pi^- in the center-of-mass energy range 0.8 GeV/c^2 < W < 1.5 GeV/c^2 with 85.9 fb^-1 of data collected at sqrt(s)=10.58 GeV and 10.52 GeV with the Belle detector. A clear signal for the f_0 lr 980 resonance is observed. From a fit to the mass spectrum, the resonance's mass, pi^+ pi^- and two-photon decay widths are found to be 985.6^+1.2 _-1.5(stat)^+1.1_-1.6(syst) MeV/c^2, 34.2^+13.9_-11.8(stat)^+8.8_-2.5(syst) MeV, and 205^+95_-83(stat)^+147_-117(syst) eV, respectively.
description: 6 pages, 3 figures, ICHEP06 conference paper
STROBE checklist for ASSOCIATION BETWEEN INFERTILITY AND RISK OF CARDIOVASCULAR DISEASES IN YOUNG WOMEN.
Creators: name: GANJARE, ROHANI
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320599
subject: Medical biochemistry and metabolomics not elsewhere classified

description: STROBE checklist for ASSOCIATION BETWEEN INFERTILITY AND RISK OF CARDIOVASCULAR DISEASES IN YOUNG WOMEN.
Heavy elements unveil the non primordial origin of the giant HI ring in Leo
Creators: name: Corbelli, Edvige
name: Cresci, Giovanni
name: Mannucci, Filippo
name: Thilker, David
name: Venturi, Giacomo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The origin and fate of the most extended extragalactic neutral cloud known in the local Universe, the Leo ring, is still debated 38 years after its discovery. Its existence is alternatively attributed to leftover primordial gas with some low level of metal pollution versus enriched gas stripped during a galaxy-galaxy encounter. Taking advantage of MUSE (Multi Unit Spectroscopic Explorer) operating at the VLT, we performed optical integral field spectroscopy of 3 HI clumps in the Leo ring where ultraviolet continuum emission has been found. We detected, for the first time, ionized hydrogen in the ring and identify 4 nebular regions powered by massive stars. These nebulae show several metal lines ([OIII],[NII],[SII]) which allowed reliable measures of metallicities, found to be close to or above the solar value. Given the faintness of the diffuse stellar counterparts, less than 3 percent of the observed heavy elements could have been produced locally in the main body of the ring and not much more than 15 percent in the HI clump towards M96. This inference, and the chemical homogeneity among the regions, convincingly demonstrates that the gas in the ring is not primordial, but has been pre-enriched in a galaxy disk, then later removed and shaped by tidal forces and it is forming a sparse population of stars.
description: Accepted for publication in ApJ Letters, 8 pages, 3 figures
Stability of helium accretion discs in ultracompact binaries
Creators: name: Lasota, Jean-Pierre
name: Dubus, Guillaume
name: Kruk, Katarzyna
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stellar companions of accreting neutron stars in ultra compact X-ray binaries (UCXBs) are hydrogen-deficient. Their helium or C/O accretion discs are strongly X-ray irradiated. Both the chemical composition and irradiation determine the disc stability with respect to thermal and viscous perturbations. At shorter periods, UCXBs are persistent, whereas longer-period systems are mostly transient. To understand this behaviour one has to derive the stability criteria for X-ray irradiated hydrogen-poor accretion discs. We use a modified and updated version of the Dubus et al. code describing time-dependent irradiated accretion discs around compact objects. We obtained the relevant stability criteria and compared the results to observed properties of UCXBs. Although the general trend in the stability behaviour of UCXBs is consistent with the prediction of the disc instability model, in a few cases the inconsistency of theoretical predictions with the system observed properties is weak enough to be attributed to observational and/or theoretical uncertainties. Two systems might require the presence of some amount of hydrogen in the donor star.
description: Astronomy & Astrophysics, in press
Design Approach for Additive Manufacturing in Spare Part Supply Chains
Creators: name: de Brito, Filipe M.
name: Júnior, Gélson da Cruz
name: Frazzon, Enzo M.
name: Basto, João P.
name: Alcalá, Symone G. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: In the current industrial revolution, additive manufacturing (AM) embodies a promising technology that can enhance the effectiveness, adaptability, and competitiveness of supply chains (SCs). Moreover, it facilitates the development of distributed SCs, thereby enhancing product availability, inventory levels, and lead time. However, the wide adoption of AM in industrial SCs creates various challenges, leading to new difficulties for SC design. In this context, this paper proposes a new design approach to AM SCs using optimization methods. More specifically, the proposed approach, comprising the p-median and mixed-integer linear programming models, considers the decision of deploying productive resources (3D printers) in specific locations of generic spare part SCs. The approach was evaluated in a real-world use case of an elevator maintenance service provider. The obtained results demonstrated the promising capabilities of the proposed design approach in managing the challenges arising from the forthcoming widespread use of 3D printers in manufacturing SCs.
description: 9 pages, 8 figures. Published to Published to IEEE Xplore at Oct 07 2020. Periodical Title: IEEE Transactions on Industrial Informatics
Hamiltonian formulation and analysis of a collisionless fluid reconnection model
Creators: name: Tassi, E.
name: Morrison, P. J.
name: Waelbroeck, F. L.
name: Grasso, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Hamiltonian formulation of a plasma four-field fluid model that describes collisionless reconnection is presented. The formulation is noncanonical with a corresponding Lie-Poisson bracket. The bracket is used to obtain new independent families of invariants, so-called Casimir invariants, three of which are directly related to Lagrangian invariants of the system. The Casimirs are used to obtain a variational principle for equilibrium equations that generalize the Grad-Shafranov equation to include flow. Dipole and homogeneous equilibria are constructed. The linear dynamics of the latter is treated in detail in a Hamiltonian context: canonically conjugate variables are obtained; the dispersion relation is analyzed and exact thresholds for spectral stability are obtained; the canonical transformation to normal form is described; an unambiguous definition of negative energy modes is given; and thresholds sufficient for energy-Casimir stability are obtained. The Hamiltonian formulation also is used to obtain an expression for the collisionless conductivity and it is further used to describe the linear growth and nonlinear saturation of the collisionless tearing mode.
description: 4 figures
Electrical transport through a single-electron transistor strongly coupled to an oscillator
Creators: name: Doiron, C. B.
name: Belzig, W.
name: Bruder, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate electrical transport through a single-electron transistor coupled to a nanomechanical oscillator. Using a combination of a master-equation approach and a numerical Monte Carlo method, we calculate the average current and the current noise in the strong-coupling regime, studying deviations from previously derived analytic results valid in the limit of weak-coupling. After generalizing the weak-coupling theory to enable the calculation of higher cumulants of the current, we use our numerical approach to study how the third cumulant is affected in the strong-coupling regime. In this case, we find an interesting crossover between a weak-coupling transport regime where the third cumulant heavily depends on the frequency of the oscillator to one where it becomes practically independent of this parameter. Finally, we study the spectrum of the transport noise and show that the two peaks found in the weak-coupling limit merge on increasing the coupling strength. Our calculation of the frequency-dependence of the noise also allows to describe how transport-induced damping of the mechanical oscillations is affected in the strong-coupling regime.
description: 11 pages, 9 figures
FANDANGO: Evolving Language-Based Testing
Creators: name: Zamudio Amaya, José Antonio
name: Smytzek, Marius
name: Zeller, Andreas
Publisher: name: CISPA
Year: 2025

description: Language-based fuzzers leverage formal input specifications (languages) to generate arbitrarily large and diverse sets of valid inputs for a program under test. Modern language-based test generators combine grammars and constraints to satisfy syntactic and semantic input constraints. ISLa, the leading input generator in that space, uses symbolic constraint solving to solve input constraints. Using solvers places ISLa among the most precise fuzzers but also makes it slow.

In this paper, we explore search-based testing as an alternative to symbolic constraint solving. We employ a genetic algorithm that iteratively generates candidate inputs from an input specification, evaluates them against defined constraints, evolving a population of inputs through syntactically valid mutations and retaining those with superior fitness until the semantic input constraints are met. This evolutionary procedure, analogous to natural genetic evolution, leads to progressively improved inputs that cover both semantics and syntax. This change boosts the efficiency of language-based testing: In our experiments, compared to ISLa, our search-based FANDANGO prototype is faster by one to three orders of magnitude without sacrificing precision.

The search-based approach no longer restricts constraints to constraint solvers' (miniature) languages. In FANDANGO, constraints can use the whole Python language and library. This expressiveness gives testers unprecedented flexibility in shaping test inputs. It allows them to state arbitrary goals for test generation: "Please produce 1,000 valid test inputs where the field follows a Gaussian distribution but never exceeds 20 mV."
Démarche d’investigation dans l’enseignement des sciences de la nature à l’école primaire
Creators: name: Dubois, Laurent
name: Müller, Andreas
name: Delaval, Marine
Publisher: name: Progress in Science Education (PriSE)
Year: 2021

description: Dans la présente étude, nous étudions les effets de différentes nouvelles séquences d'enseignement des sciences et technologies à l'école primaire en mettant l'accent sur les aspects liés à la motivation (plaisir, concept de soi académique / compétence perçue) ainsi que sur les représentations des élèves sur les sciences (démarche scientifique, utilité de la science).
description: Progress in Science Education (PriSE), Vol. 4 No. 1 (2021)
Postvelar harmony : an examination of its bases and crosslinguistic variation
Creators: name: Shahin, Kimary N.
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation examines postvelar harmony in two unrelated languages: Palestinian Arabic and St'at'imcets Salish. In contrast to previous studies, it identifies two such harmonies for each language: pharyngealisation (tongue root retraction) harmony and uvularisation (tongue back retraction) harmony. The properties of the two harmonies in each language are detailed. Acoustic data are provided as support for the proposed analyses and for the grounded phonological accounts which are subsequently developed. The harmonic feature of pharyngealisation harmony in both Palestinian and St'a'timcets is identified as [RTR] (unspecified for primary or secondary status). The anchor for [RTR] in both languages is the NUC. Co-occurring secondary-[DOR] and secondary-[RTR] are identified as the harmonic features of uvularisation harmony. In both languages, the anchor for these co-occurring features is the root node. An Optimality Theory account of the two harmonies in each language is developed, in which Correspondence, Alignment, and Grounded Constraints have central roles. Constraint reranking is shown to yield the observed crosslinguistic variation in the harmonies. In the course of this examination, issues regarding the consonantal and vocalic inventories of Palestinian and St'at'imcets are adressed. It is argued that each has a more elaborate vocalic system than previously recognised, and that St'at'imcets, like Palestinian, has a set of underlying emphatic consonants.
Abstract Interleaving Semantics for Reconfigurable Petri Nets
Creators: name: Padberg, Julia
Publisher: name: European Association of Software Science and Technology
Year: 2012

description: Reconfigurable Petri nets are Petri nets together with rules for the dynamic change of the nets. We employ them for the formal modeling in the context of the Living Place Hamburg, a smart home that is an urban apartment serving as  a laboratory for investigating different areas of ambient intelligence. The interaction of the resident and the smart home is modeled using informal descriptions of scenarios. These scenarios provide the resident's procedures together with the smart home's support. A case study using reconfigurable Petri nets for modeling these scenarios has required extensions of the theory and has clearly shown the need for an interleaving semantics for reconfigurable Petri nets. Scenarios are then given by nets, namely decorated place/transition nets that can be adapted to the evolving subgoals by applying rules that change the nets and hence the behavior of the smart home. Decorated place/transition nets are annotated place/transition nets with additional transition labels that may change when the transition is fired. To obtain such reconfigurable Petri nets  we prove that decorated place/transition nets  give rise to an M-adhesive HLR category. The abstract interleaving semantics we introduce is a graph with nodes that consist of an isomorphism class of the net structure and an isomorphism class of the current  marking. Arcs between these nodes represent computation steps being either a transition firing or a direct transformation.
description: Electronic Communications of the EASST, Volume 51: Petri Nets, Graph Transformation and other Concurrency Formalisms 2012
A systematic description of wind-driven protoplanetary discs
Creators: name: Lesur, Geoffroy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: (shortened) Planet forming discs are believed to be very weakly turbulent in the regions outside of 1 AU. For this reason, it is now believed that magnetized winds could be the dominant mechanism driving accretion in these systems. However, there is today no self-consistent way to describe discs subject to a magnetized wind, in a way similar to the $α$ disc model. In this article, I explore in a systematic way the parameter space of wind-driven protoplanetary discs and present scaling laws which can be used in reduced models à la alpha-disc. Methods: I compute a series of self-similar wind solutions, assuming the disc is dominated by ambipolar and Ohmic diffusions. These solution are obtained by looking for stationary solutions in the finite-volume code PLUTO using a relaxation method and continuation. Results: Self-similar solutions are obtained for values of plasma beta ranging from 10^2 to 10^8, for several Ohmic and ambipolar diffusion strengths. Mass accretions rates of the order of 10^{-8} Msun/yr are obtained for poloidal field strength beta=O(10^4) or equivalently 1 mG at 10 AU. The resulting magnetic lever arms are typically lower than 2, possibly reaching 1.5 in weakest field cases. Finally, I provide a complete set of scaling laws and semi-analytical wind solutions, which can be used to fit and interpret observations. Conclusions: Magnetized winds are unavoidable in protoplanetary discs as soon as they are embedded in an ambient poloidal magnetic field. Very detailed disc microphysics are not always needed to describe them, and simplified models such as self-similar solutions manage to capture most of the physics seen in full 3D simulations. The remaining difficulty to get a complete theory of wind-driven accretion lies in the transport of the large scale field, which remains poorly constrained and not well understood.
description: 13 pages, 14 figures, accepted for publication in A&A
Position Paper: Software Modeling Education
Creators: name: Seidl, Martina
name: Clarke, Peter J.
Publisher: name: European Association of Software Science and Technology
Year: 2012

description: Model-driven engineering (MDE) is a promising paradigm to deal with the ever increasing complexity of modern software systems. Its powerful abstraction mechanisms allow practitioners to focus on the essential development challenges, thereby hiding the irrelevant aspects of the system under development. Within the last few years, noticeable progress has been made in putting MDE into practice,particularly in those areas where the activity of programming is substituted by modeling. The recent availability of matured  concepts and stable tools has resulted in MDE becoming more applicable in software engineering projects. Nevertheless, the availability of the best technology is worthless, if it is not accepted  and used by practitioners in the field. To alleviate this problem there is a need for extensive training both in academia and industry to fully exploit the power of MDE.

In this paper, we discuss the efforts being undertaken in the educational communities to promote the application of modeling and MDE technologies and discuss several challenges which still need to be addressed.
description: Electronic Communications of the EASST, Volume 52: Software Modeling in Education 2011
Elicitation of vocabulary from "Verdena's Life Story, Part 2"
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-170811-10: Elicitation of vocabulary from Verdena's Life Story, Part 2 (file VP-041009-02), starting around 9:50.
Process eta -> pi^0 gamma gamma in the Nambu-Jona-Lasinio model
Creators: name: Radzhabov, A. E.
name: Volkov, M. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The decay width of the process eta -> pi^0 gamma gamma is calculated in the framework of the Nambu-Jona-Lasinio model. The momentum dependence of quark loops is taken into account. Three types of diagrams are considered: quark box, scalar(a0) and vector(rho, omega) pole diagrams. The obtained estimations are in satisfactory agreement with recent experimental data.
description: 9 pages, 4 figures
Legal Responsibilities When Hiring Migrant, Seasonal and H2-A Visa Workers
Creators: name: Everhart, Sarah
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Migrant workers
Seasonal workers
H-2A Visa workers
Migrant Seasonal Agricultural Worker Protection Act

description: When farmers need to harvest a large amount of crops in a short period of time, migrant, seasonal, and H-2A Visa workers can often be the best solution to complete the job quickly and affordably.  However, there are specific Federal and state legal duties and responsibilities for farmers who employ these types of workers and substantial criminal and civil penalties for failing to adhere to the law.
New Results for Light Gravitinos at Hadron Colliders - Tevatron Limits and LHC Perspectives
Creators: name: Klasen, M.
name: Pignol, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive Feynman rules for the interactions of a single gravitino with (s)quarks and gluons/gluinos from an effective supergravity Lagrangian in non-derivative form and use them to calculate the hadroproduction cross sections and decay widths of single gravitinos. We confirm the results obtained previously with a derivative Lagrangian as well as those obtained with the non-derivative Lagrangian in the high-energy limit and elaborate on the connection between gauge independence and the presence of quartic vertices. We perform extensive numerical studies of branching ratios, total cross sections, and transverse-momentum spectra at the Tevatron and the LHC. From the latest CDF monojet cross section limit, we derive a new and robust exclusion contour in the gravitino-squark/gluino mass plane, implying that gravitinos with masses below $2\cdot10^{-5}$ to $1\cdot10^{-5}$ eV are excluded for squark/gluino-masses below 200 and 500 GeV, respectively. These limits are complementary to the one obtained by the CDF collaboration, $1.1\cdot 10^{-5}$ eV, under the assumption of infinitely heavy squarks and gluinos. For the LHC, we conclude that SUSY scenarios with light gravitinos will lead to a striking monojet signal very quickly after its startup.
description: 30 pages, 12 figures. Tevatron limit improved and unitarity limit included. Version to be published in Phys. Rev. D
Hengel, Martin, Die vier Evangelien und das eine Evangelium von Jesus Christus
Creators: name: Vorster, Hans
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 58 Nr. 1 (2009): Ökumenische Rundschau, Band 58, Heft 1
EIT and TRACE responses to flare plasma
Creators: name: Tripathi, D.
name: Del Zanna, G.
name: Mason, H. E.
name: Chifor, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: To understand the contribution of active region and flare plasmas to the $λ$195 channels of SOHO/EIT (Extreme-ultraviolet Imaging Telescope) and TRACE (Transition Region and Coronal Explorer). Methods: We have analysed an M8 flare simultaneously observed by the Coronal Diagnostic Spectrometer (CDS), EIT, TRACE and RHESSI. We obtained synthetic spectra for the flaring region and an outer region using the differential emission measures (DEM) of emitting plasma based on CDS and RHESSI observations and the CHIANTI atomic database. We then predicted the EIT and TRACE count rates. Results: For the flaring region, both EIT and TRACE images taken through the $λ$195 filter are dominated by Fe ${\rm XXIV}$ (formed at about 20 MK). However, in the outer region, the emission was primarily due to the Fe${\rm XII}$, with substantial contributions from other lines. The average count rate for the outer region was within 25% the observed value for EIT, while for TRACE it was a factor of two higher. For the flare region, the predicted count rate was a factor of two (in case of EIT) and a factor of three (in case of TRACE) higher than the actual count rate. Conclusions: During a solar flare, both TRACE and EIT $λ$195 channels are found to be dominated by Fe ${\rm XXIV}$ emission. Reasonable agreement between predictions and observations is found, however some discrepancies need to be further investigated.
description: 6 pages, 4 figures
S2D2: Small-scale Significant substructure DBSCAN Detection I. NESTs detection in 2D star-forming regions
Creators: name: González, Marta
name: Joncour, Isabelle
name: Buckner, Anne S. M.
name: Khorrami, Zeinhab
name: Moraux, Estelle
name: Lumsden, Stuart L.
name: Clark, Paul
name: Oudmaijer, René D.
name: Blanco, José Manuel
name: de la Calle, Ignacio
name: Herrera-Fernandez, José María
name: Salgado, Jesús J.
name: Valero-Martín, Luis
name: Torres, Zoe
name: Hacar, Álvaro
name: Ulla, Ana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The spatial and dynamical structure of star-forming regions can help provide insights on stellar formation patterns. The amount of data from current and upcoming surveys calls for robust and objective procedures to detect structure, so the results can be statistically analysed and different regions compared. We provide the community with a tool able to detect the small scale significant structure, above random expectation, in star-forming regions, which could be the imprint of the stellar formation process. The tool makes use of the one point correlation function and of nearest neighbour statistics to determine the parameters for the DBSCAN algorithm. The procedure successfully detects significant small scale substructures in heterogeneous regions, fulfilling the goals it was designed for, and providing very reliable structures. The analysis of regions close to complete spatial randomness ($Q \in [0.7,0.87]$) shows that, even when some structure is present and recovered, it is hardly distinguishable from spurious detection in homogeneous regions due to projection effects. Interpretation should thus be done with care. For concentrated regions, we detect a main structure surrounded by smaller ones, corresponding to the core plus some Poisson fluctuations around it. We argue that these structures do not correspond to the small compact regions we are looking for. In some realistic cases, a more complete hierarchical, multi-scale analysis would be needed to capture the complexity of the region. We have developed implementations of our procedure, and a catalogue of the NESTs (Nested Elementary STructures) detected by it in four star-forming regions (Taurus, IC 348, Upper Scorpius, and Carina), which are publicly available to the community. Implementations of the 3D, and up to 6D versions of the procedure including proper movements are in progress, and will be provided as future work.
description: 24 pages, 21 figures. Accepted for publication in A&A. Abstract abridged
On the interpretative essence of the term "interaction-free measurement": The role of entanglement
Creators: name: Angelo, R. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The polemical term "interaction-free measurement" (IFM) is analyzed in its interpretative nature. Two seminal works proposing the term are revisited and their underlying interpretations are assessed. The role played by nonlocal quantum correlations (entanglement) is formally discussed and some controversial conceptions in the original treatments are identified. As a result the term IFM is shown to be consistent neither with the standard interpretation of quantum mechanics nor with the lessons provided by the EPR debate.
description: accepted in Found. Phys
O'ZBEKISTONDA XUSUSIY TADBIRKORLIK FAOLIYATINING RIVOJLANISH XUSUSIYATLARI
Creators: name: Xomidov, Xojiakbar
Publisher: name: Zenodo
Year: 2024

description: Bugungi kunga qadar “tadbirkorlik” tushunchasini yoritish va uni ilmiy jihatdan asoslash bo‘yicha ko‘plab ilmiy tadqiqotlar amalga oshirilgan bo‘lib, ilk bora iqtisodiyot taʼlimotlariga tadbirkorlik tushunchasi ingliz iqtisodchisi R.Kantilon tomonidan kiritilgan.
A natural and simple UV completion of the QCD axion model
Creators: name: Yamada, Masaki
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The novel PQ mechanism replaces the strong CP problem with some challenges in a model building. In particular, the challenges arise regarding i) the origin of an anomalous global symmetry called a PQ symmetry, ii) the scale of the PQ symmetry breaking, and iii) the quality of the PQ symmetry. In this letter, we provide a natural and simple UV completed model that addresses these challenges. Extra quarks and anti-quarks are separated by two branes in the Randall-Sundrum ${\bf R}^4 \times S^1 / {\bf Z}_2$ spacetime while a hidden SU($N_H$) gauge field condensates in the bulk. The brane separation is the origin of the PQ symmetry and its breaking scale is given by the dynamical scale of the SU($N_H$) gauge interaction. The (generalized) Casimir force of SU($N_H$) condensation stabilizes the 5th dimension, which guarantees the quality of the PQ symmetry.
description: 6 pages, 1 figure
Are polymer melts "ideal"?
Creators: name: Wittmer, J. P.
name: Beckrich, P.
name: Crevel, F.
name: Huang, C. C.
name: Cavallo, A.
name: Kreer, T.
name: Meyer, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: It is commonly accepted that in concentrated solutions or melts high-molecular weight polymers display random-walk conformational properties without long-range correlations between subsequent bonds. This absence of memory means, for instance, that the bond-bond correlation function, $P(s)$, of two bonds separated by $s$ monomers along the chain should exponentially decay with $s$. Presenting numerical results and theoretical arguments for both monodisperse chains and self-assembled (essentially Flory size-distributed) equilibrium polymers we demonstrate that some long-range correlations remain due to self-interactions of the chains caused by the chain connectivity and the incompressibility of the melt. Suggesting a profound analogy with the well-known long-range velocity correlations in liquids we find, for instance, $P(s)$ to decay algebraically as $s^{-3/2}$. Our study suggests a precise method for obtaining the statistical segment length \bstar in a computer experiment.
description: 4 pages, 3 figures
title: Probabilities of large earthquakes in Central New Zealand
Creators: name: Gerstenberger, Matthew C.
name: Kaneko, Yoshi
name: Fry, Bill
name: Wallace, Laura M.
name: Rhoades, David A.
name: Christophersen, Annemarie
name: Williams, Charles A.
Publisher: name: GNS Science
publisherIdentifier: https://ror.org/03vaqfv64
publisherIdentifierScheme: ROR
Year: 2017

description: In this project, we have estimated the 1-year and 10-year probabilities for the occurrence of large earthquakes in central New Zealand. Following the November 14th, 2016 Kaikōura MW 7.8 earthquake, there was widespread triggering of slow slip earthquakes (SSE) on the Hikurangi subduction zone. At that time, little research had been done to understand the implications of SSE for the occurrence of future larger earthquakes. In December, 2016 initial modelling was done to estimate the probabilities of larger earthquakes within the next year in central New Zealand; this was the first time such work had been done anywhere. In this project, we have improved upon the initial models and have constructed new physical and statistical forecast models that account for the interaction of SSE and crustal earthquakes. Part of this process included two international workshops. In the first workshop, preliminary models were reviewed by the international panel and revisions and recommendations for new models were discussed. In the second workshop, a non-consensus structured expert elicitation procedure was used to evaluate the models and observations and to estimate the revised probabilities as shown in the table below. The best estimates for the next year for M7.0+ and M7.8+ represent increases of 20% and 100% respectively over the long-term estimates from the National Seismic Hazard Model. The upper bounds for both of these magnitude range estimates area significantly greater increase. Similarly, the upper bounds on the decade estimates are a significant increase over the long-term estimates. (auths)
Intelligent on-demand design of phononic metamaterials
Creators: name: Jin, Yabin
name: He, Liangshu
name: Wen, Zhihui
name: Mortazavi, Bohayra
name: Guo, Hongwei
name: Torrent, Daniel
name: Djafari-Rouhani, Bahram
name: Rabczuk, Timon
name: Zhuang, Xiaoying
name: Li, Yan
Publisher: name: Berlin : de Gruyter
Year: 2022
Subjects: subject: 2D materials
subject: hierarchical structure
subject: inverse design
subject: machine learning
subject: metamaterials
subject: phononic crystals
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: With the growing interest in the field of artificial materials, more advanced and sophisticated functionalities are required from phononic crystals and acoustic metamaterials. This implies a high computational effort and cost, and still the efficiency of the designs may be not sufficient. With the help of third-wave artificial intelligence technologies, the design schemes of these materials are undergoing a new revolution. As an important branch of artificial intelligence, machine learning paves the way to new technological innovations by stimulating the exploration of structural design. Machine learning provides a powerful means of achieving an efficient and accurate design process by exploring nonlinear physical patterns in high-dimensional space, based on data sets of candidate structures. Many advanced machine learning algorithms, such as deep neural networks, unsupervised manifold clustering, reinforcement learning and so forth, have been widely and deeply investigated for structural design. In this review, we summarize the recent works on the combination of phononic metamaterials and machine learning. We provide an overview of machine learning on structural design. Then discuss machine learning driven on-demand design of phononic metamaterials for acoustic and elastic waves functions, topological phases and atomic-scale phonon properties. Finally, we summarize the current state of the art and provide a prospective of the future development directions.
Half-Metal Spin-Gapless Semiconductor Junctions as a Route to the Ideal Diode
Creators: name: Şaşıoğlu, E.
name: Aull, T.
name: Kutschabsky, D.
name: Blügel, S.
name: Mertig, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ideal diode is a theoretical concept that completely conducts the electric current under forward bias without any loss and that behaves like a perfect insulator under reverse bias. However, real diodes have a junction barrier that electrons have to overcome and thus they have a threshold voltage $V_T$, which must be supplied to the diode to turn it on. This threshold voltage gives rise to power dissipation in the form of heat and hence is an undesirable feature. In this work, based on half-metallic magnets and spin-gapless semiconductors we propose a diode concept that does not have a junction barrier and the operation principle of which relies on the spin-dependent transport properties of the HMM and SGS materials. We show that the HMM and SGS materials form an Ohmic contact under any finite forward bias, while for a reverse bias the current is blocked due to spin-dependent filtering of the electrons. Thus, the HMM-SGS junctions act as a diode with zero threshold voltage $V_T$, and linear $I-V$ characteristics as well as an infinite on:off ratio at zero temperature. However, at finite temperatures, non-spin-flip thermally excited high-energy electrons as well as low-energy spin-flip excitations can give rise to a leakage current and thus reduce the on:off ratio under a reverse bias. Furthermore, a zero threshold voltage allows one to detect extremely weak signals and due to the Ohmic HMM-SGS contact, the proposed diode has a much higher current drive capability and low resistance, which is advantageous compared to conventional semiconductor diodes. We employ the NEGF method combined with DFT to demonstrate the linear $I-V$ characteristics of the proposed diode based on two-dimensional half-metallic Fe/MoS$_2$ and spin-gapless semiconducting VS$_2$ planar heterojunctions.
description: 12 pages, 9 figures
Maryna meridiana
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Colpodea
Colpodida
Marynidae
Maryna
Maryna meridiana

description: Maryna meridiana 1 Foissner 2016
Distribution. COSTA RICA: (Foissner 2016). JAMAICA: (Foissner 2016), (Gm).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 25, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
From sources to data to knowledge - A knowledge base for the study of the German society around 1200
Creators: name: Knüpfer, Christian
Publisher: name: Zenodo
Year: 2021

description: Part II of a talk given at the "Bridging the Gaps: (Ancient) History from the Perspective of Mathematical and Computational Modelling and Network Analysis" workshop in Brno on 13 November 2015.
World War I and its aftermath: Reaching for the past and across the Atlantic
Creators: name: Gohrisch, Jana
Publisher: name: Thousand Oaks, Calif. : Sage
Year: 2021
Subjects: subject: African Caribbean soldiers
subject: British West Indies
subject: C. L. R. James
subject: Haitian Revolution
subject: Nancy Cunard
subject: self-government
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::050 | Zeitschriften, fortlaufende Sammelwerke

description: This article focuses on the British West Indies beginning with the involvement of African Caribbean soldiers in the Great War. It challenges the enduring myth of the First World War as a predominantly white European conflict. The main part focuses on C. L. R. James, the Trinidadian historian and playwright, following his paradigmatic trajectory from the colony to the ‘mother country’ and his involvement in the protracted transnational process of decolonization after the First Word War. It concentrates on one of his political pamphlets and on his play Toussaint Louverture. The work of the British writer and left-wing political activist Nancy Cunard is also presented as another ‘outsider’ text which can further an ongoing methodological project: the re-integration and cross-fertilization of received knowledge about the war with seemingly outlying knowledge, unorthodox political commitment and challenging aesthetics to produce a richer understanding of this formative period across the Atlantic divide.
The Relevance of Mediterranean Neutrino Telescope Sites on Earth-skimming tau neutrino detection
Creators: name: Miele, Gennaro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A study of the UHE nu_tau detection performances of a km^3 Neutrino Telescope sitting at the three proposed sites for ANTARES, NEMO and NESTOR in the Mediterranean sea is here performed. In particular, it is analyzed the effect of the underwater surface profile on the total amount of yearly expected tau crossing the fiducial volume in the limit of full detection efficiency and energy resolution.
description: 8 pages. Contributed to CRIS 2006: Cosmic Ray International Seminar: Ultra-High Energy Cosmic Rays: Status and Perspectives, Catania, Italy, 29 May - 2 Jun 2006
Study of Bs->mu+mu- in CMS
Creators: name: Langenegger, Urs
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a Monte Carlo simulation study of measuring the rare leptonic decay Bs->mu+mu- with the CMS experiment at the LHC. The study is based on a full detector simulation for signal and background events. We discuss the high-level trigger algorithm and the offline event selection.
description: 4 pages, 3 figures; to appear in the proceedings of the 33rd Intl. Conference on High Energy Physics, ICHEP 2006 (Moscow, July 2006)
Sparse Tucker Tensor Decomposition on a Hybrid FPGA-CPU Platform
Creators: name: Jiang, Weiyun
name: Zhang, Kaiqi
name: Lin, Colin Yu
name: Xing, Feng
name: Zhang, Zheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Recommendation systems, social network analysis, medical imaging, and data mining often involve processing sparse high-dimensional data. Such high-dimensional data are naturally represented as tensors, and they cannot be efficiently processed by conventional matrix or vector computations. Sparse Tucker decomposition is an important algorithm for compressing and analyzing these sparse high-dimensional data sets. When energy efficiency and data privacy are major concerns, hardware accelerators on resource-constraint platforms become crucial for the deployment of tensor algorithms. In this work, we propose a hybrid computing framework containing CPU and FPGA to accelerate sparse Tucker factorization. This algorithm has three main modules: tensor-times-matrix (TTM), Kronecker products, and QR decomposition with column pivoting (QRP). In addition, we accelerate the former two modules on a Xilinx FPGA and the latter one on a CPU. Our hybrid platform achieves $23.6 \times \sim 1091\times$ speedup and over $93.519\% \sim 99.514 \%$ energy savings compared with CPU on the synthetic and real-world datasets.
description: 10 pages, 7 figures, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
THE CARDIOVASCULAR SYSTEM
Creators: name: Saidmuradova, Aziza
name: Akhmedova, Rano
name: Djuraeva, Barno
Publisher: name: Zenodo
Year: 2024

description: This professional article offers an in-depth exploration of the cardiovascular system, a vital network that sustains life by circulating blood throughout the body. From the anatomy of the heart and blood vessels to the intricacies of blood composition, the article delves into the system's dynamic functions. Emphasizing the interplay of structure and function, it addresses clinical applications, common disorders, and contemporary advancements in cardiovascular research.
Transcription of a story about Verdena's cat
Creators: name: Parker, Verdena
name: Escamilla, Ramón
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-170811-07 and VP-170811-08: Transcription of a story about Verdena's cat (file VP-230711-01), from 14:10 to 18:00 (VP-170811-07) and from 18:00 to 20:00 (VP-170811-08).