cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metanoeus ellipticus Weiszenstein & Bocak 2011, new species
Creators: name: Weiszenstein, Martin
name: Bocak, Ladislav
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Metanoeus
Metanoeus ellipticus

description: Metanoeus ellipticus, new species
(Figs. 9–10)
  Material examined. –  Holotype. Male (LMBC), Philippines, Mindanao, 30 km W of Maramag, Bagongsilang, 1700 m, coll. Bolm, 13–17 Apr.1996.
 Differential diagnosis. – M. ellipticus is very similar in general appearence and coloration to other species from the Philippines. Metanoeus ellipticus can be easily distinguished by the shape of the male genitalia, which are characteristic in the ellipsoidal shape of the apical part of the phallus (Figs. 9–10).
  Description. –  Body medium-sized. Head, pro- and mesothorax light brown, metathorax dark brown, pronotum and elytra bright yellow; antennae brown; trochanters and bases of femora light brown, gradually changing to dark brown apically. Head small, hypognathous, including eyes slightly wider than frontal margin of pronotum. Eyes hemispherically prominent, eye diameter 1.12 times frontal interocular distance. Antennae robust, flabellate, lamellae of median antennomeres about 3.1 times longer than body of antennomere. Head and antennae with dense, short, recumbent pubescence. Pronotum flat, 1.2 times wider than long at midline, widest at basal third. Posterior margin of pronotum bisinuate. Elytra almost parallel-sided, 4.26 times longer than width at humeri; slightly widened posteriorly, widest at apical third. Legs compressed, with dense pubescence. Male genitalia with oval-shaped, wide phallobase, phallus constricted in middle, ellipsoid apically (Figs. 9–10).
  Measurements. –  BL 8.6 mm, PL 1.22 mm, PW 1.46 mm, HW 1.7 mm, Edist 0.54 mm, Ediam 0.61 mm.
  Distribution. –  Philippines: Mindanao.
  Etymology. –  The specific epithet refers to the apical part of the male genitalia, which is ellipsoid in shape (Figs. 9–10).
description: Published as part of Weiszenstein, Martin & Bocak, Ladislav, 2011, A Review Of The Genus Metanoeus From The Philippines (Coleoptera: Lycidae), pp. 163-170 in Raffles Bulletin of Zoology 59 (2) on page 167, DOI: 10.5281/zenodo.10107115
Technical Definitions and Proofs of Propositions and Theorems from Relating causal and probabilistic approaches to contextuality
Creators: name: Jones, Matt
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 10599 Mathematical Physics not elsewhere classified
subject: FOS: Mathematics

description: A primary goal in recent research on contextuality has been to extend this concept to cases of inconsistent connectedness, where observables have different distributions in different contexts. This article proposes a solution within the framework of probabilistic causal models, which extend hidden-variables theories, and then demonstrates an equivalence to the contextuality-by-default (CbD) framework. CbD distinguishes contextuality from direct influences of context on observables, defining the latter purely in terms of probability distributions. Here, we take a causal view of direct influences, defining direct influence within any causal model as the probability of all latent states of the system in which a change of context changes the outcome of a measurement. Model-based contextuality (M-contextuality) is then defined as the necessity of stronger direct influences to model a full system than when considered individually. For consistently connected systems, M-contextuality agrees with standard contextuality. For general systems, it is proved that M-contextuality is equivalent to the property that any model of a system must contain ‘hidden influences’, meaning direct influences that go in opposite directions for different latent states, or equivalently signalling between observers that carries no information. This criterion can be taken as formalizing the ‘no-conspiracy’ principle that has been proposed in connection with CbD. M-contextuality is then proved to be equivalent to CbD-contextuality, thus providing a new interpretation of CbD-contextuality as the non-existence of a model for a system without hidden direct influences.This article is part of the theme issue ‘Contextuality and probability in quantum mechanics and beyond’.
Calculating the NMR Chemical Shielding of Large Molecules
Creators: name: Reid, David
Publisher: name: The Australian National University
Year: 2017
Subjects: NMR
nuclear magnetic resonance
chemical shielding
theoretical
prediction
proteins
large molecule
fragmentation
locally dense basis set
composite method
linear scaling
divide and conquer
hydrogen bonding
long range
McConnell correction

description: This thesis examines three approximations that significantly reduce the computational time of theoretical NMR shielding calculations for large molecules, whilst largely retaining the accuracy of the parent method: fragmentation, locally dense basis sets and composite methods. For fragmentation it is established that Level 4 fragments reliably reproduce full molecule shieldings, when hydrogen bonds are treated as single bonds, and long range through space corrections are incorporated through the McConnell equation and background charges. The pcS-n basis set family is demonstrated to converge more rapidly towards the basis set limit than all other examined families. Furthermore, it is established that this limit is consistent with convergence towards experimental values. A systematic investigation of locally dense basis sets established that a group based partitioning of the pcS-4, pcS-2 and pcS-1 basis sets, augmented with through space allocations, allowed the shielding to be produced within chemical accuracy for a variety of compounds. Finally, composite methods utilising a variety of levels of theory were systematically investigated, and it was found that a double composite method combining the HF, MP2 and CCSD(T) levels of theory and the pcS-4, pcS-2 and pcS-1 basis sets yielded NMR shieldings that were within chemical accuracy of CCSD(T)/pcS-4 calculations, themselves having converged closely to experimental values. When considered in combination this work represents a significant step towards achieving chemical accuracy for protein NMR shielding calculations.
Semiconductor channel mediated photodoping in h-BN encapsulated monolayer MoSe2 phototransistors
Creators: name: Quereda, Jorge
name: Ghiasi, Talieh S.
name: van der Wal, Caspar H.
name: van Wees, Bart J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In optically excited two-dimensional phototransistors, charge transport is often affected by photodoping effects. Recently, it was shown that such effects are especially strong and persistent for graphene/h-BN heterostructures, and that they can be used to controllably tune the charge neutrality point of graphene. In this work we investigate how this technique can be extended to h BN encapsulated monolayer MoSe_2 phototransistors at room temperature. By exposing the sample to 785 nm laser excitation we can controllably increase the charge carrier density of the MoSe_2 channel by Δn {\approx} 4.45 {\times} 10^{12} cm^{-2}, equivalent to applying a back gate voltage of 60 V. We also evaluate the efficiency of photodoping at different illumination wavelengths, finding that it is strongly correlated with the light absorption by the MoSe_2 layer, and maximizes for excitation on-resonance with the A exciton absorption. This indicates that the photodoping process involves optical absorption by the MoSe_2 channel, in contrast with the mechanism earlier described for graphene/h-BN heterostroctures.
Megalopinus tangi PUTHZ 2012
Creators: name: Puthz, V.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Megalopinus
Megalopinus tangi

description: Megalopinus tangi PUTHZ 2012
 Megalopinus tangi PUTHZ 2012: 1384.
 M a t e r i a l:333, 2♀♀: LAOS: Phongsaly prov., env. Phongsaly, ca. 1500m, 21 ° 41’N, 102 ° 6’E, 6.-17.V.2004, V. Kubán: Naturhistorisches Museum Basel und coll. Puthz.
B e m e r k u n g Neu für Laos! Mit diesen Funden wird die Lücke zwischen China (Yunnan) und Thailand geschlossen.
description: Published as part of Puthz, V., 2013, Weitere Megalopinus-Arten aus der Orientalis (Coleoptera, Staphylinidae) (27. Beitrag zur Kenntnis der Megalopsidiinen), pp. 845-849 in Linzer biologische Beiträge 45 (1) on page 846, DOI: 10.5281/zenodo.5299505
Effect of the Surface on the Electron Quantum Size Levels and Electron g-Factor in Spherical Semiconductor Nanocrystals
Creators: name: Rodina, A. V.
name: Efros, Al. L.
name: Alekseev, A. Yu.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The structure of the electron quantum size levels in spherical nanocrystals is studied in the framework of an eight--band effective mass model at zero and weak magnetic fields. The effect of the nanocrystal surface is modeled through the boundary condition imposed on the envelope wave function at the surface. We show that the spin--orbit splitting of the valence band leads to the surface--induced spin--orbit splitting of the excited conduction band states and to the additional surface--induced magnetic moment for electrons in bare nanocrystals. This additional magnetic moment manifests itself in a nonzero surface contribution to the linear Zeeman splitting of all quantum size energy levels including the ground 1S electron state. The fitting of the size dependence of the ground state electron g factor in CdSe nanocrystals has allowed us to determine the appropriate surface parameter of the boundary conditions. The structure of the excited electron states is considered in the limits of weak and strong magnetic fields.
description: 11 pages, 4 figures, submitted to Phys. Rev. B
The perceived impact of Erasmus+ learning mobility: European university students’ views concerning their competences and employability
Creators: name: Papakota, Aikaterini
name: Mouratoglou, Nikolaos
Publisher: name: Academia
Year: 2024
Subjects: Higher education institutions, mobility for studies, future career trajectories, soft skills

description: The Erasmus+ programme represents one of the most tangible achievements of the EU: uniting people across our continent, creating a sense of belonging and solidarity. This statement reflects the programme’s scope and the broad range of knowledge, skills, and attitudes (competences) expected to be developed by those participating in mobility exchanges. In this context, the European project Erasmus Skills aimed to create a self-assessment tool to support students, pursuing an Erasmus+ learning mobility for studies, to assess and better understand the competences developed during this experience. The present paper briefly presents the aims of the cross-institutional project and discusses the results of the confirmatory focus groups that were carried out in Greece, Spain, and Belgium. In specific, the data analysis depicts university students’ views regarding the purpose of the Erasmus+ programme, the competences expected to be or already gained, and its impact on their employability. The study also explores participants’ views on the institutional support needed and their recommendations concerning prospective Erasmus students. The results indicate that participants’ views are generally aligned with the objectives of Erasmus+, while additional findings regarding the perceived impact of learning mobility might offer new insights in terms of the institutional support needed.
description: Academia, Αρ. 34 (2024)
TIRADS JES supplementary data.docx
Creators: name: Cawood, Tom
Publisher: name: figshare
Year: 2019
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Supplementary data to support article on TIRADS system for risk-stratification of thyroid cancer. It consists of tables detailing how the test performance of the TIRADS, and random guessing, have been calculated. There are also table detailing the estimated cost of using TIRADS to rule in or rule out thyroid cancer,
Late-time dynamics of rapidly rotating black holes
Creators: name: Glampedakis, K.
name: Andersson, N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the late-time behaviour of a dynamically perturbed rapidly rotating black hole. Considering an extreme Kerr black hole, we show that the large number of virtually undamped quasinormal modes (that exist for nonzero values of the azimuthal eigenvalue m) combine in such a way that the field (as observed at infinity) oscillates with an amplitude that decays as 1/t at late times. This is in clear contrast with the standard late time power-law fall-off familiar from studies of non-rotating black holes. This long-lived oscillating ``tail'' will, however, not be present for non-extreme (presumably more astrophysically relevant) black holes, for which we find that many quasinormal modes (individually excited to a very small amplitude) combine to give rise to an exponentially decaying field. This result could have implications for the detection of gravitational-wave signals from rapidly spinning black holes, since the required theoretical templates need to be constructed from linear combinations of many modes. Our main results are obtained analytically, but we support the conclusions with numerical time-evolutions of the Teukolsky equation. These time-evolutions provide an interesting insight into the notion that the quasinormal modes can be viewed as waves trapped in the spacetime region outside the horizon. They also suggest that a plausible mechanism for the behaviour we observe for extreme black holes is the presence of a ``superradiance resonance cavity'' immediately outside the black hole.
description: 27 pages, 9 ps figures, RevTeX
Groundwater in the mountains
Creators: name: Himanshu Kulkarni
name: Siddharth Patil
Publisher: name: figshare
Year: 2019
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: 40603 Hydrogeology

description: The mountain regions of India include the Himalayan and sub-Himalayan states, the Eastern and Western Ghats and other hilly provinces such as the Aravalli ranges. The mountainous regions of India are dominantly dependant on springs for drinking water, domestic usage and agricultural needs. Springs can be considered as the lifeline of these regions. Springs also form important cultural symbols while performing the crucial role of providing base flows to rivers and consequently help in maintaining the ecological balance of a region. Climate change, especially erratic precipitation, is affecting spring discharges. However, the cause-effect scenario for spring depletion from climatic factors is obvious. There are other reasons that are not as obvious. On the other hand, until recently, the groundwater assessments for large parts of the mountain regions of India did not consider springs as sources that need to be understood and quantified. The issues of drinking water, sanitation and agricultural productivity are being addressed in the hills without any consideration of the differences between the plains and peninsular India and the mountain regions. This includes the implementation of watershed programmes for augmentation and drilling of bore wells for providing access to groundwater.
Vortex states in a mesoscopic superconducting triangle
Creators: name: Misko, V. R.
name: Fomin, V. M.
name: Devreese, J. T.
name: Moshchalkov, V. V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The set of the nonlinear Ginzburg-Landau equations is solved for an Al mesoscopic superconducting triangle of finite thickness. We calculate the distributions of the superconducting phase in the triangle and of the magnetic field in and near the triangle. The distribution of the superconducting phase in the triangle is studied as a function of the applied magnetic field. Possible scenarios of penetration of the magnetic field into the triangle are analyzed. We consider two different states: a single vortex state and a state in the form of a symmetric combination of three vortices and an antivortex with vorticity L_a = - 2 ("3 - 2" combination). The free energy calculations show that a single vortex penetrates the triangle through a midpoint of one side. The "3 - 2" combination turns out to be thermodynamically preferable when the vortices are close to the center of the triangle. Equilibrium is achieved when a single vortex (or each component of the "3 - 2" combination) is in the center of the triangle.
description: 6 pages, 4 figures, to be published in Physica C (Proceedings of the 2nd European Conference in School Format "Vortex Matter in Superconductors"), E-mail addresses: devreese@uia.ua.ac.be, fomin@uia.ua.ac.be, misko@uia.ua.ac.be, victor.moshchalkov@fys.kuleuven.ac.be
Nonlocal Equation of State in Anisotropic Static Fluid Spheres in General Relativity
Creators: name: Hernandez, H.
name: Nunez, L. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that it is possible to obtain credible static anisotropic spherically symmetric matter configurations starting from known density profiles and satisfying a nonlocal equation of state. These particular types of equation of state describe, at a given point, the components of the corresponding energy-momentum tensor not only as a function at that point, but as a functional throughout the enclosed configuration. To establish the physical plausibility of the proposed family of solutions satisfying nonlocal equation of state, we study the constraints imposed by the junction and energy conditions on these bounded matter distributions. We also show that it is possible to obtain physically plausible static anisotropic spherically symmetric matter configurations, having nonlocal equations of state\textit{,}concerning the particular cases where the radial pressure vanishes and, other where the tangential pressures vanishes. The later very particular type of relativistic sphere with vanishing tangential stresses is inspired by some of the models proposed to describe extremely magnetized neutron stars (magnetars) during the transverse quantum collapse.
description: 21 pages, 1 figure, minor changes in the text, references added, two new solutions studied
MicroRNA and mRNA Processing Variations in Normal and Hypertrophic Hearts
Creators: name: Soetanto, Rina
Publisher: name: The Australian National University
Year: 2017
Subjects: microRNA
mRNA processing
3'-UTR
cardiac hypertrophy
alternative cleavage and polyadenylation

description: Cardiovascular disease (CVD) affects one in six Australians, with healthcare expenditure that exceeds that for any other disease Recently, there has been an increased interest in studying the regulation of and by RNAs to find novel targets for the treatment of CVD. microRNAs (miRNAs) in particular, have been implicated in the pathogenesis of CVD, and thus have emerged as a promising candidate for therapeutic interventions. In addition to differential miRNA expression, miRNA-mediated control is also affected by variable miRNA processing and alternative 3’-end cleavage and polyadenylation (APA) of their mRNA targets. To what extent these phenomena play a role in the heart remains unclear. Thus, the major aim of this thesis is to uncover the expression and processing variations of miRNAs and mRNA 3’-ends, and evaluate their changes during cardiac hypertrophy. Thoracic aortic constriction (TAC) was performed to induce hypertrophy in C57BL/6J mice. RNA extracted from cardiomyocytes of sham-treated, pre-hypertrophic (2 days post-TAC), and hypertrophic (7 days post-TAC) mice was subjected to small RNA- and poly(A)-test sequencing (PAT-Seq). The sequencing datasets were mined for expressions of non-coding and protein-coding transcripts and their variants. The analyses of differential expression of miRNA and mRNA during cardiac hypertrophy matched expectations, although we identified ~400 mRNAs and hundreds of noncoding RNA loci as altered with hypertrophy for the first time. There is a widespread occurrence of miRNA processing variations in the cardiomyocyte, however their relative proportions remained largely unchanged during hypertrophy. Our mRNA 3’end-sequencing data identified novel 3’UTRs for 7,348 genes. Notably, there was a significant net shift towards shorter 3’UTR variants as hypertrophy develops. We independently validated several examples of 3’UTR proportion change, and showed that alternative 3’UTRs associate with differences in mRNA translation. We combined the small RNA- and PAT-sequencing datasets for a cardiac-specific miRNA target predictions analysis. Differential analyses of these interactions during hypertrophy suggested that the connectivity between miRNA and their 3’UTR targets are modulated, with an overall decrease in miRNA repression strength during cardiac hypertrophy. The findings presented in this thesis suggest that APA contributes to altered gene expression with the development of cardiomyocyte hypertrophy. This thesis provides a rich resource for a systems-level understanding of miRNA-mediated regulation in physiological and pathological states of the heart.
Foreshocks Explained by Cascades of Triggered Seismicity
Creators: name: Helmstetter, Agnes
name: Sornette, Didier
Publisher: name: arXiv
Year: 2002
Subjects: subject: Geophysics (physics.geo-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The observation of foreshocks preceding large earthquakes and the suggestion that foreshocks have specific properties that may be used to distinguish them from other earthquakes have raised the hope that large earthquakes may be predictable. Among proposed anomalous properties are the larger proportion than normal of large versus small foreshocks, the power law acceleration of seismicity rate as a function of time to the mainshock and the spatial migration of foreshocks toward the mainshock, when averaging over many sequences. Using Southern California seismicity, we show that these properties and others arise naturally from the simple model that any earthquake may trigger other earthquakes, without arbitrary distinction between foreshocks, aftershocks and mainshocks. We find that foreshocks precursory properties are independent of the mainshock size. This implies that earthquakes (large or small) are predictable to the same degree as seismicity rate is predictable from past seismicity by taking into account cascades of triggering. The cascades of triggering give rise naturally to long-range and long-time interactions, which can explain the observations of correlations in seismicity over surprisingly large length scales.
description: 20 pages, 6 figures, minor revision, in press in J. Geophys. Res
Metanoeus luzonensis Weiszenstein & Bocak 2011, new species
Creators: name: Weiszenstein, Martin
name: Bocak, Ladislav
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Metanoeus
Metanoeus luzonensis

description: Metanoeus luzonensis, new species
(Figs. 15–16)
  Material examined. –  Holotype. Male (KMTC), Philippines, Luzon, Bicol National Park, coll. H. Arimoto, 5–8 Feb.1985.
 Figs. 13–16. Male genitalia: 13–14: Metanoeus bakeri Kleine, 1926, 15–16: M. luzonensis, new species. Scale 1 mm.  Paratypes. –  5 males (KMTC), same locality data as holotype; 1 male (KMTC), Philippines, Mindanao, coll. N. Nishikawa 12–15 Apr.1983.
  Differential diagnosis. –  Both, M. bakeri and M. luzonensis are characterized by the short, very robust phallus but they differ by the length and position of the apical processes (Figs 13–16). In addition, they may be distinguished by the relative size of eyes which are slightly larger in M. bakeri.
  Description. –  Body medium-sized. Pro- and mesothorax light brown, metathorax brown; head light brown, pronotum and elytra bright yellow; antennae brown; trochanters and bases of femora light brown, gradually changing to dark brown or black apically. Head small, hypognathous, including eyes about as wide as frontal margin of pronotum. Eyes hemispherically prominent, frontal interocular distance 1.09 times eye diameter. Antennae flabellate, lamellae of median antennomeres 1.7 times longer than body of antennomere. Head and antennae with dense, short, recumbent pubescence. Pronotum flat, 1.05 times wider than long at midline, widest at basal third; with dense pubescence. Posterior margin of pronotum slightly bisinuate. Elytra almost parallel-sided, widest at apical third; 4.44 times longer than width at humeri; with sparse pubescence. Legs compressed. Male genitalia very robust with several sclerotized processes (Figs. 15–16).
  Measurements. –  BL 8.5 mm, PL 1.36 mm, PW 1.44 mm, HW 1.60 mm, Edist 0.52 mm, Ediam 0.47 mm.
  Distribution. –  Philippines: Luzon, Mindanao.
  Etymology. –  The specific epithet refers to Luzon island, the type locality of the species.
description: Published as part of Weiszenstein, Martin & Bocak, Ladislav, 2011, A Review Of The Genus Metanoeus From The Philippines (Coleoptera: Lycidae), pp. 163-170 in Raffles Bulletin of Zoology 59 (2) on pages 167-168, DOI: 10.5281/zenodo.10107115
Preservation Planning for Digital Audio-Visual Material at the German National Library of Science and Technology (TIB) – Developing a Catalogue of Criteria and a Migration Plugin
Creators: name: Friedrich, Merle
Publisher: name: Zenodo
Year: 2019
Subjects: Digital Preservation
Preservation Planning
Audiovisual Media
Migration

description: The German Nation Library of Science and Technology (TIB) runs a digital archive in order to preserve its digital holdings which consists amongst others of audio-visual material. In order to identify obsolete audio-visual file formats a catalogue of criteria is developed and file formats which represent the majority of TIB’s audio-visual holdings are examined. The assessment reveals that the examined file formats are not a preferred file format for digital preservation, but on the other hand they are not at risk to become obsolete to TIB’s designated community. Furthermore, a migration plugin for the digital archive’s software environment is developed and successfully deployed. The migration plugin can be used during preservation planning in order to migrate the examined formats into TIB’s chosen archival file format if a migration becomes necessary.
Variations on the Bloch-Ogus Theorem
Creators: name: Panin, I.
name: Zainoulline, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: K-Theory and Homology (math.KT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F20; 18G40; 19F27

description: In the present paper we discuss questions concerning the arithmetic resolution for etale cohomology. Namely, consider a smooth quasi-projective variety X over a field k together with the local scheme U at a point x. Let Y be a smooth proper scheme over U. We prove there is the Gersten-type exact sequence for etale cohomology with coefficients in a locally constant etale sheaf F of Z/nZ-modules on Y which has finite stalks and (n,char(k))=1.
description: Latex 2e, XYPIC, 21 pages
Optimizing regularized Cholesky score for order-based learning of Bayesian networks
Creators: name: Ye, Qiaoling
name: Amini, Arash A.
name: Zhou, Qing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Bayesian networks are a class of popular graphical models that encode causal and conditional independence relations among variables by directed acyclic graphs (DAGs). We propose a novel structure learning method, annealing on regularized Cholesky score (ARCS), to search over topological sorts, or permutations of nodes, for a high-scoring Bayesian network. Our scoring function is derived from regularizing Gaussian DAG likelihood, and its optimization gives an alternative formulation of the sparse Cholesky factorization problem from a statistical viewpoint, which is of independent interest. We combine global simulated annealing over permutations with a fast proximal gradient algorithm, operating on triangular matrices of edge coefficients, to compute the score of any permutation. Combined, the two approaches allow us to quickly and effectively search over the space of DAGs without the need to verify the acyclicity constraint or to enumerate possible parent sets given a candidate topological sort. The annealing aspect of the optimization is able to consistently improve the accuracy of DAGs learned by local search algorithms. In addition, we develop several techniques to facilitate the structure learning, including pre-annealing data-driven tuning parameter selection and post-annealing constraint-based structure refinement. Through extensive numerical comparisons, we show that ARCS achieves substantial improvements over existing methods, demonstrating its great potential to learn Bayesian networks from both observational and experimental data.
description: 15 pages, 7 figures, 5 tables
МЕТОДОЛОГИЧЕСКИЕ ОСНОВЫ И ПРАКТИКА ПРИМЕНЕНИЯ ОПЕРАЦИОННОЙ СТРАТЕГИИ В ОБРАЗОВАТЕЛЬНОМ ПРОЦЕССЕ
Creators: name: Исроилжонова  Мадинабону Шухратжон кизи магистр 2-го курса направление "Управление  Образовательными  учреждениями " ТГПУ им. Низами
Publisher: name: Zenodo
Year: 2025

description: Современные условия быстро меняющегося мира требуют от образовательных учреждений гибкости, эффективности и инновационных подходов к организации учебного процесса. Операционная стратегия в образовании играет ключевую роль в обеспечении качества обучения, оптимизации ресурсов и достижении поставленных целей. В данной статье рассматриваются основные аспекты операционной стратегии образовательного процесса и её применение в профессиональной деятельности педагогов и администраторов.

Ключевые слова: познание, учение, система методов, педагогический процесс, кадровые ресурсы, эстетическое наслаждение, геймификация
An approach to Decision Making based on Dynamic Argumentation Systems
Creators: name: Ferretti, Edgardo
name: Tamargo, Luciano H.
name: Garcia, Alejandro J.
name: Errecalde, Marcelo L.
name: Simari, Guillermo R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we introduce a formalism for single-agent decision making that is based on Dynamic Argumentation Frameworks. The formalism can be used to justify a choice, which is based on the current situation the agent is involved. Taking advantage of the inference mechanism of the argumentation formalism, it is possible to consider preference relations and conflicts among the available alternatives for that reasoning. With this formalization, given a particular set of evidence, the justified conclusions supported by warranted arguments will be used by the agent's decision rules to determine which alternatives will be selected. We also present an algorithm that implements a choice function based on our formalization. Finally, we complete our presentation by introducing formal results that relate the proposed framework with approaches of classical decision theory.
Correlated tunneling in intramolecular carbon nanotube quantum dots
Creators: name: Thorwart, M.
name: Grifoni, M.
name: Cuniberti, G.
name: Postma, H. W. Ch.
name: Dekker, C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate correlated electronic transport in single-walled carbon nanotubes with two intramolecular tunneling barriers. We suggest that below a characteristic temperature the long range nature of the Coulomb interaction becomes crucial to determine the temperature dependence of the maximum G_max of the conductance peak. Correlated sequential tunneling dominates transport yielding the power-law G_max ~ T^{α_{end-end}-1}, typical for tunneling between the ends of two Luttinger liquids. Our predictions are in agreement with recent measurements.
Metanoeus matsudai Weiszenstein & Bocak 2011, new species
Creators: name: Weiszenstein, Martin
name: Bocak, Ladislav
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Metanoeus
Metanoeus matsudai

description: Metanoeus matsudai, new species
(Figs. 11–12)
  Material examined. –  Holotype. Male (LMBC), Philippines, Mindanao, 30 km W of Maramag, Bagongsilang, 1700 m, coll. Bolm, 13–17 Apr.1996.
  Paratypes. –  2 males (LMBC), same locality date as holotype; 1 male (LMBC), Philippines, Mindanao, 30 km W of Maramag, Bagongsilang, 1600 m, coll. Bolm, 28–30 Dec.1990; 1 male (LMBC), Philippines, Mindanao 35 km W of Malaybalay, 1000 m, coll. Bolm, May 1996; 1 male (KMTC), Philippines, Mindanao, Mt. Apo, coll. N. Nishikawa, 30–31 Dec.1980..
 Differential diagnosis. – M. matsudai is the only species in Luzon, Mindanao and the Visayas with a slender apical part of the phallus and several well-sclerotized rod-like structures in the internal sac (Figs. 11–12). The closely related M. dohertyi from Palawan has a similar phallus in general apearance but with longer, parallel-sided apical part. These species differ also in coloration: M. dohertyi is darker, orange yellow and M. bakeri pale yellow and resembles syntopically occurring net-winged beetles. The species from Borneo and Sumatra having similar male genitalia differ substantially in their coloration and body shape.
  Description. –  Body medium-sized. Head, pro- and mesothorax light brown; metathorax brown, pronotum and elytra bright yellow; antennae brown; trochanters and bases of femora brown, gradually darker apically. Head small, hypognathous, including eyes wider or of similar width as frontal margin of pronotum. Eyes hemispherically prominent, eye diameter 1.2 times frontal interocular distance. Antennae robust, flabellate, lamellae of median antennomeres about 2.3 times longer than body of antennomere. Head and antennae with dense, short, recumbent pubescence. Pronotum flat, 1.35 times wider than long at midline, widest at basal third; covered with dense pubescence, posterior margin slightly bisinuate. Elytra almost parallel-sided, slightly widened posteriorly, widest at apical third; 4.56 times longer than width at humeri; with sparse pubescence. Legs lightly compressed, with dense pubescence. Male genitalia with oval-shaped, slender phallobase, phallus slender apically, with slender, rod-like, sclerotized internal sac (Figs. 11–12).
  Measurements. –  BL 9.25 mm, PL 1.20 mm, PW 1.62 mm, HW 1.70 mm, Edist 0.55 mm, Ediam 0.66 mm.
  Distribution. –  Philippines: Mindanao.
  Etymology. –  The specific epithet is a patronym in honour of Kiyoshi Matsuda, Takarazuka, Japan, who provided material for this study.
description: Published as part of Weiszenstein, Martin & Bocak, Ladislav, 2011, A Review Of The Genus Metanoeus From The Philippines (Coleoptera: Lycidae), pp. 163-170 in Raffles Bulletin of Zoology 59 (2) on page 168, DOI: 10.5281/zenodo.10107115
Can Crossref Citations Replace Web of Science for Research Evaluation? The Share of Open Citations
Creators: name: Chudlarský, Tomáš
name: Dvořák, Jan
Publisher: name: Zenodo
Year: 2019

description: We study the level of coverage of the established Web of Science citation database by the openly available citation links from the Open Citations Index of Crossref open DOI-to-DOI references project (COCI) on the sample where the cited publications are those we track in the Current Research Information System (CRIS) of our institution, the Czech Technical University. On the sample we found that more than a half (54%) of the citations from Web of Science are present as open citation in Crossref. The coverage significantly differs among disciplines (ranging from 78% to 25%) and faculties (ranging from 63% to 28%). Such levels are not yet sufficient to use Crossref as the source for citation analyses as a part of research evaluation at the university and/or faculty levels. However, the coverage has an increasing tendency, and so has the percentage of open citations in Crossref; we therefore believe that this gap can be overcome in the upcoming decade.
Constraints on the environment and energetics of the Broad-Line Ic SN2014ad from deep radio and X-ray observations
Creators: name: Marongiu, M.
name: Guidorzi, C.
name: Margutti, R.
name: Coppejans, D. L.
name: Martone, R.
name: Kamble, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Broad-line type Ic Supernovae (BL-Ic SNe) are characterized by high ejecta velocity ($\gtrsim 10^4$ km s$^{-1}$) and are sometimes associated with the relativistic jets typical of long duration ($\gtrsim 2$ s) Gamma-Ray Bursts (L-GRBs). The reason why a small fraction of BL-Ic SNe harbor relativistic jets is not known. Here we present deep X-ray and radio observations of the BL-Ic SN2014ad extending from $13$ to $930$ days post explosion. SN2014ad was not detected at either frequency and has no observational evidence of a GRB counterpart. The proximity of SN2014ad ($d\sim 26$ Mpc) enables very deep constraints on the progenitor mass-loss rate $\dot{M}$ and on the total energy of the fast ejecta $E$. We consider two synchrotron emission scenarios for a wind-like circumstellar medium (CSM): (i) uncollimated non-relativistic ejecta, and (ii) off-axis relativistic jet. Within the first scenario our observations are consistent with GRB-less BL-Ic SNe characterized by a modest energy budget of their fast ejecta ($E \lesssim 10^{45}$ erg), like SNe 2002ap and 2010ay. For jetted explosions, we cannot rule out a GRB with $E \lesssim 10^{51}$ erg (beam-corrected) with a narrow opening angle ($θ_j \sim 5^{\circ}$) observed moderately off-axis ($θ_{\rm obs} \gtrsim 30^{\circ}$) and expanding in a very low CSM density ($\dot{M}$ $\lesssim 10^{-6}$ M$_{\odot}$ yr$^{-1}$). Our study shows that off-axis low-energy jets expanding in a low-density medium cannot be ruled out even in the most nearby BL-Ic SNe with extensive deep observations, and might be a common feature of BL-Ic SNe.
description: 9 pages, 5 figures, accepted in ApJ
ASKORBIN KISLOTASINING XOSSALARI VA XUSUSIYATLARI. ASKORBIN KISLOTANI (VITAMIN C) ANIQLASH
Creators: name: Ayozov, Shohabbos
name: Abdiravidov, Temurbek
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada askorbin kislotasining xossalari, xususiyatlari, fiziologik, terapevtik va dorivor ta’siri aks ettirilgan. Shuningdek, askorbin kislotasining (vitamin c) aniqlash usullari, tabiiy holda o’simlik tarkibida mavjudligi ko’rsatib o’tilgan. Inson tanasidagi ahamiyati, ya’ni akorbin kislotasi sifatida ham tanilgan S vitamini barcha tana to'qimalarining o'sishi, rivojlanishi va tiklanishi uchun zarurligi, kollagen hosil bo'lishi, temirning so'rilishi, immunitet tizimining to'g'ri ishlashi, yaralarni davolash va xaftaga, suyak va tishlarni saqlash kabi ko'plab tana funktsiyalarida ishtirok etishi haqida ma’limot beriladi.
La vivienda como oportunidad social en Ecuador
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2019
Subjects: vivienda
Ecuador
derechos
Humanos
oportunidades
economía
sociedad
digna
construcción
seguridad

description: Participación como editorialista en el informativo de la mañana, de 6:30 a 8:00, de Radio Loja, 97.7, que se emite desde la ciudad de Loja en Ecuador.
Application of linear hyperbolic PDE to linear quantum fields in curved spacetimes: especially black holes, time machines and a new semi-local vacuum concept
Creators: name: Kay, Bernard S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Several situations of physical importance may be modelled by linear quantum fields propagating in fixed spacetime-dependent classical background fields. For example, the quantum Dirac field in a strong and/or time-dependent external electromagnetic field accounts for the creation of electron-positron pairs out of the vacuum. Also, the theory of linear quantum fields propagating on a given background curved spacetime is the appropriate framework for the derivation of black-hole evaporation (Hawking effect) and for studying the question whether or not it is possible in principle to manufacture a time-machine. It is a well-established metatheorem that any question concerning such a linear quantum field may be reduced to a definite question concerning the corresponding classical field theory (i.e. linear hyperbolic PDE with non-constant coefficients describing the background in question) -- albeit not necessarily a question which would have arisen naturally in a purely classical context. The focus in this talk will be on the covariant Klein-Gordon equation in a fixed curved background, although we shall draw on analogies with other background field problems and with the time-dependent harmonic oscillator. The aim is to give a sketch-impression of the whole subject of Quantum Field Theory in Curved Spacetime, focussing on work with which the author has been personally involved, and also to mention some ideas and work-in-progress by the author and collaborators towards a new "semi-local" vacuum construction for this subject. A further aim is to introduce, and set into context, some recent advances in our understanding of the general structure of quantum fields in curved spacetimes which rely on classical results from microlocal analysis.
description: Talk at Journe'es E'quations aux de'rive'es partielles, Nantes, 5-9 June, 2000. 19 pages, 6 eps figures. Style file edpa.cls supplied. Requires latexsym, amssymb, epsf
Asphaltene aggregation onset during high-salinity waterflooding of reservoirs (a molecular dynamic study)
Creators: name: Yaseen, Salah
name: Mansoori, G. Ali
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The primary objective of this study is to establish an understanding of the role of high-salinity brine on the intensity of asphaltene aggregation onset during waterflooding of petroleum reservoirs. We already have shown that asphaltenes have a high tendency to form aggregates during waterflooding process when pure- and low salinity-water are injected into reservoirs. To fulfill the present objective, molecular dynamic simulations are performed on asphaltenic-oil/aqueous systems. The oil phase consists of asphaltenes and ortho-xylene, in which asphaltene molecules are completely soluble. Our simulations results reveal that the salt-in effect of high-salinity brine on seven different model asphaltenic oils causes a significant reduction of the onset of asphaltene aggregation as compared with pure-water. Such salt-in effect is primarily due to a considerable reduction of water miscibility in the oil phase at high pressure and temperature.
The Case for a Deep Search for Earth's Trojan Asteroids
Creators: name: Malhotra, Renu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The existence of Earth's Trojan asteroids is not well constrained and represents a major gap in our inventory of small bodies in near-Earth space. Their discovery would be of high scientific and human interest.
Niobium and niobium nitride SQUIDs based on anodized nanobridges made with an Atomic Force Microscope
Creators: name: Faucher, M.
name: Fournier, T.
name: Pannetier, B.
name: Thirion, C.
name: Wernsdorfer, W.
name: Villegier, J. C.
name: Bouchiat, V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a fabrication method of superconducting quantum interference devices (SQUIDs) based on direct write lithography with an Atomic Force Microscope (AFM). This technique involves maskless local anodization of Nb or NbN ultrathin films using the voltage biased tip of the AFM. The SQUIDs are of weak-link type, for which two geometries have been tested: Dayem and variable thickness nanobridges. The magnetic field dependence of the maximum supercurrent Ic(flux) in resulting SQUIDs is thoroughly measured for different weak link geometries and for both tested materials. It is found that the modulation shape and depth of Ic(flux) curves are greatly dependent on the weak link size. We analyze the results taking into account the kinetic inductance of nanobridges and using the Likharev-Yakobson model. Finally we show that the present resolution reached by this technique (20nm) enables us to fabricate Nb weak-links which behavior approaches those of ideal Josephson junctions.
description: 22 pages, 8 figures
Elementary divisors of Gram matrices of certain Specht modules
Creators: name: Kuenzer, Matthias
name: Nebe, Gabriele
Publisher: name: arXiv
Year: 2002
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C30

description: The elementary divisors of the Gram matrices of Specht modules S^lambda over the symmetric group are determined for two-row partitions and for two-column partitions lambda. More precisely, the subquotients of the Jantzen filtration are calculated using Schaper's formula. Moreover, considering a general partition lambda of n at a prime p > n - lambda_1, the only possible non trivial composition factor of S_p^lambda is induced by the morphism of Carter and Payne, as shown by means of Kleshchev's modular branching rule. This enables the Jantzen filtration to be calculated in this case as well.
description: Notes added in proof: (2.5, 4.1) indepentenly obtained by M. Fayers. (2.5) obtained by G.E. Murphy in his thesis. Minor corrections
Rossby-Haurwitz waves of a slowly and differentially rotating fluid shell
Creators: name: Rezzolla, Luciano
name: Yoshida, Shin'ichirou
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent studies have raised doubts about the occurrence of r modes in Newtonian stars with a large degree of differential rotation. To assess the validity of this conjecture we have solved the eigenvalue problem for Rossby-Haurwitz waves (the analogues of r waves on a thin-shell) in the presence of differential rotation. The results obtained indicate that the eigenvalue problem is never singular and that, at least for the case of a thin-shell, the analogues of r modes can be found for arbitrarily large degrees of differential rotation. This work clarifies the puzzling results obtained in calculations of differentially rotating axi-symmetric Newtonian stars.
description: 8pages, 3figures. Submitted to CQG
Microscopic details of asphaltenes aggregation onset during waterflooding
Creators: name: Yaseen, Salah
name: Mansoori, G. Ali
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report detailed microscopic studies of asphaltenes aggregation onset during waterflooding of petroleum reservoirs. To achieve this objective, a series of simulations are performed on asphaltenic-oil miscibilized with water at high pressure and temperature through molecular dynamics. Results of this simulation onset are applicable to asphaltenes behavior in real crude oils. Our simulation results illustrate that the aggregation onset in waterflooding generally follows three sequential steps: (i). Asphaltene-water interaction; (ii). Water bridging; (iii). Face-to-face stacking. Then, asphaltene-water and water-water hydrogen-bonding network surround every aggregate boosting the intensity of aggregation onset. We intend to utilize such understanding of these details in our predictive and preventive measures of arterial blockage in oil reservoirs during waterflooding.