cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bound on the Dark Matter Density in the Solar System from Planetary Motions
Creators: name: Frère, J. -M.
name: Ling, F. -S.
name: Vertongen, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: High precision planet orbital data extracted from direct observation, spacecraft explorations and laser ranging techniques enable to put a strong constraint on the maximal dark matter density of a spherical halo centered around the Sun. The maximal density at Earth's location is of the order $10^5$ ${\rm GeV/cm^3}$ and shows only a mild dependence on the slope of the halo profile, taken between 0 and -2. This bound is somewhat better than that obtained from the perihelion precession limits.
description: 7 pages, 1 figure
Modeling the effects of dynamic range compression on signals in noise
Creators: name: Corey, Ryan M.
name: Singer, Andrew C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Hearing aids use dynamic range compression (DRC), a form of automatic gain control, to make quiet sounds louder and loud sounds quieter. Compression can improve listening comfort, but it can also cause distortion in noisy environments. It has been widely reported that DRC performs poorly in noise, but there has been little mathematical analysis of these distortion effects. This work introduces a mathematical model to study the behavior of DRC in noise. Using statistical assumptions about the signal envelopes, we define an effective compression function that models the compression applied to one signal in the presence of another. This framework is used to prove results about DRC that have been previously observed experimentally: that when DRC is applied to a mixture of signals, uncorrelated signal envelopes become negatively correlated; that the effective compression applied to each sound in a mixture is weaker than it would have been for the signal alone; and that compression can reduce the long-term signal-to-noise ratio in certain conditions. These theoretical results are supported by software experiments using recorded speech signals.
Crystalline-Electric-Field Effect on the Resistivity of Ce-based Heavy Fermion Systems
Creators: name: Nishida, Yasutaka
name: Tsuruta, Atsushi
name: Miyake, Kazumasa
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The behavior of the resistivity of Ce-based heavy fermion systems is studied using a 1/$N$-expansion method a la Nagoya, where $N$ is the spin-orbital degeneracy of f-electrons. The 1/$N$-expansion is performed in terms of the auxiliary particles, and a strict requirement of the local constraints is fulfilled for each order of 1/N. The physical quantities can be calculated over the entire temperature range by solving the coupled Dyson equations for the Green functions self-consistently at each temperature. This 1/N-expansion method is known to provide asymptotically exact results for the behavior of physical quantities in both low- and high-energy regions when it is applied to a single orbital periodic Anderson model (PAM). On the basis of a generalized PAM including crystalline-electric-field splitting with a single conduction band, the pressure dependence of the resistivity is calculated by parameterizing the effect of pressure as the variation of the hybridization parameter between the conduction electrons and f-electrons. The main result of the present study is that the double-peak structure of the $T$-dependence of the resistivity is shown to merge into a single-peak structure with increasing pressure.
description: 37 pages, 22 figures
Εφαρμοσμένα μαθηματικά δίκτυα: η περίπτωση του συστημικού κινδύνου σε μικρο-επίπεδο
Creators: name: Σουμπέκας, Δημήτριος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Συστημικός κίνδυνος
Μεταχρονολογημένες επιταγές
Τράπεζες
Systemic risk
Cheques-as-collateral network
Banks

description: Οι διοικήσεις των τραπεζών, έχοντας σαν γνώμονα τη διατήρηση της σταθερότητας και της συνέχειας των εργασιών τους, έχουν ως στόχο υψηλής προτεραιότητας την εφαρμογή και τη διαρκή εξέλιξη ενός αποτελεσματικού πλαισίου διαχείρισης κινδύνων. Στην παρούσα εργασία παρουσιάζονται οι κίνδυνοι που αντιμετωπίζουν σήμερα οι τράπεζες και αναλύεται η έννοια του κινδύνου, ο οποίος επηρεάζει το κόστος παροχής χρήματος, την ανταγωνιστικότητα και την κεφαλαιακή επάρκειά τους. Στη συνέχεια παραθέτουμε τη συνήθη μεθοδολογία που ακολουθείται για τη διαβάθμιση του κινδύνου των επιχειρήσεων από τις τράπεζες . Γίνεται σύνδεση της θεωρίας γράφων με τα οικονομικά δίκτυα και μελέτη ενός δικτύου μεταχρονολογημένων επιταγών που έχουν χρηματοδοτηθεί από κατάστημα επαρχιακής πόλης μεγάλης πολυεθνικής τράπεζας. Τα σύγχρονα συστήματα κινδύνου δεν λαμβάνουν υπόψη τις συνδέσεις και το ντόμινο κατάρρευσης που μπορεί να προκαλέσει μια διαταραχή σε ένα δίκτυο με αποτέλεσμα να μην μπορούν να προσδιορίσουν τις ζημίες που μπορεί να προκαλέσει ένας πελάτης της στους υπόλοιπους. Η έρευνά μας κάνει την αρχή στη συζήτηση για την εξερεύνηση του συστημικού κινδύνου σε πελάτες τραπεζών που χρηματοδοτούνται με ενεχυρίαση των επιταγών τους. Τέλος παρουσιάζουμε κάποιους συντελεστές που μπορούν να βοηθήσουν στην αξιολόγηση των μεταχρονολογημένων επιταγών πριν γίνει η χρηματοδότησή τους από την τράπεζα.
description: The bank management’s high priority is the implementation and ongoing development of an effective risk management framework so as to maintain the stability and the low risk in the bank’s loans. This paper presents the risks currently faced by banks and discusses the concept of risk, which affects the cost of money, competitiveness and the capital adequacy. Then we present the standard methodology used for grading the risk of business from banks and we connect the theory of graphs with financial networks studying a “cheques-as-collateral” network that have been funded by a bank store. In the banking sector analysis, existing credit scoring models account only for idiosyncratic customer’s financial profile and do not anticipate systemic risk factors (e.g. a potential domino effect caused by the bankruptcy of a central node-customer). In our research, we extend the current analysis of interbank networks to intra-bank financial risk interconnections, namely the “cheques-as-collateral” network. Our model address and quantifies systemic default risk factors like chain bankruptcy caused by central customers of “cheques-as-collateral” network. Finally we present some factors that can help in the evaluation of cheques prior to their financing from the bank.
Predicting Typological Features in WALS using Language Embeddings and Conditional Probabilities: ÚFAL Submission to the SIGTYP 2020 Shared Task
Creators: name: Vastl, Martin
name: Zeman, Daniel
name: Rosa, Rudolf
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We present our submission to the SIGTYP 2020 Shared Task on the prediction of typological features. We submit a constrained system, predicting typological features only based on the WALS database. We investigate two approaches. The simpler of the two is a system based on estimating correlation of feature values within languages by computing conditional probabilities and mutual information. The second approach is to train a neural predictor operating on precomputed language embeddings based on WALS features. Our submitted system combines the two approaches based on their self-estimated confidence scores. We reach the accuracy of 70.7% on the test data and rank first in the shared task.
Dicranomyia (Caenoglochina) vorax
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Dicranomyia
Dicranomyia vorax

description: Dicranomyia (Caenoglochina) vorax (Alexander, 1941)
Original Genus: Limonia; Holotype: male; Type Locality: Panama, Chiriqui Province, Potrerillos; Description: (Alexander, 1941q); Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 21, DOI: 10.5281/zenodo.3727017
The role of timing in the heat shock effects on a prey-predator system
Creators: name: Aleix Valls
Publisher: name: F1000Research
Year: 2015

description: In prey-predator systems, altered abiotic factors can affect how predators interact with prey. We tested how the timing of a heat shock affects mummy production of a parasitoid wasp foraging on pea aphids. Our results showed that the heat shock only had an effect when it occurred while the wasp was foraging. Before and after treatments did not had a significant effect on mummy production.
Dicranomyia (Caenoglochina) paucilobata
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Dicranomyia
Dicranomyia paucilobata

description: Dicranomyia (Caenoglochina) paucilobata (Alexander, 1940)
Original Genus: Limonia; Holotype: male; Type Locality: Panama, Chiriqui Province, Potrerillos; Description: (Alexander, 1940l); Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 21, DOI: 10.5281/zenodo.3727017
Inelastic Collisions in Optically Trapped Ultracold Metastable Ytterbium
Creators: name: Yamaguchi, A.
name: Uetake, S.
name: Hashimoto, D.
name: Doyle, J. M.
name: Takahashi, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report measurement of inelastic loss in dense and cold metastable ytterbium (Yb[$^3P_2$]). Use of an optical far-off-resonance trap enables us to trap atoms in all magnetic sublevels, removing multichannel collisional trap loss from the system. Trapped samples of Yb[$^3P_2$] are produced at a density of 2$\times10^{13}$ cm$^{-3}$ and temperature of 2 $μ$K. We observe rapid two-body trap loss of Yb[$^3P_2$] and measure the inelastic collision rate constant 1.0(3)$\times10^{-11}$ cm$^3$s$^{-1}$. The existence of the fine-structure changing collisions between atoms in the $^3P_2$ state is strongly suggested.
description: 4 pages, 4 figures
Is the atomic metal vapor a dielectric state?
Creators: name: Khomkin, A. L.
name: Shumikhin, A. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose a simple method for calculating the metal vapor conductivity at the critical point and near-critical isotherms. This method's base is the hypothesis of an electron jellium's existence as an origin of the conduction band in metal vapor's gaseous phase. Satisfactory agreement with the experimental data for alkali metals (Cs, Rb) concludes that the "cold ionization" mechanism is possible in the critical point's vicinity. The liquid metal-dielectric transition, as previously thought, does not occur; but the liquid metal-gaseous metal transition occurs probably. The gaseous metal is not a dielectric state of the metal.
description: 5 pages, 2 figures. Submitted to Physica Scripta
Quantification and Mapping of Elastic Strains Ferroelectric BaZrO3/BaTiO3 Superlattices
Creators: name: Belhadi, J.
name: Ravaux, F.
name: Bouyanfif, H.
name: Jouiad, M.
name: Marssi, M. El
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on quantification and elastic strain mapping in two artificial BaZrO3/BaTiO3 (BZ/BT) superlattices having periods of 6.6 nm and 11 nm respectively, grown on (001) SrTiO3 single crystal substrate by pulsed laser deposition technique. The methodology consists of a combination of high-resolution scanning transmission electron microscopy and nanobeam electron diffraction associated with dedicated algorithm for diffraction patterns processing originally developed for semiconductors to record the strains at atomic scale. Both in-plane and out-of-plane elastic strains were then determined at 2 nm spatial resolution and their average values were used to map the strains along and transverse to the epitaxial growth direction of both samples to determine its variation along several BZ/BT interfaces. In addition, the variation of the width of the inter-diffusion BT/BZ interfaces and intermixing between different layers are estimated. The obtained width average value measured in these inter-diffusion interfaces vary from 8 to 12% and from 9 to 11% for both superlattices having period of 6.6 nm and 11 nm respectively. These inter-diffusion interfaces and the inherent elastic strains due to the confined layers of the superlattices are known to be the most important parameters, responsible of the change in their functional properties.
description: 24 pages, 8 Figures, 2 Tables
Coronal kink oscillations and photospheric driving: combining SolO/EUI and SST/CRISP high-resolution observations
Creators: name: Poirier, Nicolas
name: Danilovic, Sanja
name: Kohutova, Petra
name: Baso, Carlos J. Díaz
name: van der Voort, Luc Rouppe
name: Calchetti, Daniele
name: Sinjan, Jonas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The driving and excitation mechanisms of decay-less kink oscillations in coronal loops remain under debate. We aim to quantify and provide simple observational constraints on the photospheric driving of oscillating coronal loops in a few typical active region configurations: sunspot, plage, pores and enhanced-network regions. We then aim to investigate the possible interplay between photospheric driving and properties of kink oscillations in connected coronal loops. We analyse two unique datasets of the corona and photosphere taken at a high resolution during the first coordinated observation campaign between Solar Orbiter and the Swedish 1-m Solar Telescope (SST). A local correlation tracking method is applied on the SST/CRISP data to quantify the photospheric motions at the base of coronal loops. The same loops are then analysed in the corona by exploiting data from the Extreme Ultraviolet Imager on Solar Orbiter, and by using a wavelet analysis to characterize the kink oscillations. Each photospheric region shows dynamics with an overall increase in strength going from pore, plage, enhanced-network to sunspot regions. Differences are also seen in the kink-mode amplitudes of the corresponding coronal loops. This suggests the photosphere is involved in the driving of coronal kink oscillations. However, the few samples available does not allow to further establish the excitation mechanism yet. Despite oscillating coronal loops being anchored in seemingly "static" strong magnetic field regions as seen from coronal EUV observations, photospheric observations provide evidence for a continuous and significant driving at their base. The precise connection between photospheric driving and coronal kink oscillations remains to be further investigated. This study finally provides critical constraints on photospheric driving that can be tested in existing numerical models of coronal loops.
description: 18(+8) pages, 18 figures, accepted on 22 February 2025 to appear in Astronomy & Astrophysics
Symmetry-Adapted Tight-Binding Electronic Structure Analysis of Carbon Nanotubes with Defects, Kinks, Twist, and Stretch
Creators: name: Mukherjee, Soumya
name: Pourmatin, Hossein
name: Wang, Yang
name: Breitzman, Timothy
name: Dayal, Kaushik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This paper applies a symmetry-adapted method to examine the influence of deformation and defects on the electronic structure and band structure in carbon nanotubes. First, the symmetry-adapted approach is used to develop the analog of Bloch waves. Building on this, the technique of perfectly-matched layers is applied to develop a method to truncate the computational domain of electronic structure calculations without spurious size effects. This provides an efficient and accurate numerical approach to compute the electronic structure and electromechanics of defects in nanotubes. The computational method is applied to study the effect of twist, stretch, and bending, with and without various types of defects, on the band structure of nanotubes. Specifically, the effect of stretch and twist on band structure in defect-free conducting and semiconducting nanotubes is examined, and the interaction with vacancy defects is elucidated. Next, the effect of localized bending or kinking on the electronic structure is studied. Finally, the paper examines the effect of 5-8-5 Stone-Wales defects. In all of these settings, the perfectly-matched layer method enables the calculation of localized non-propagating defect modes with energies in the bandgap of the defect-free nanotube.
description: To appear in Mathematics and Mechanics of Solids
Detecting differentially expressed metabolic pathways with adjustments for macronutrient intake
Creators: name: Teal Guidici
Publisher: name: F1000Research
Year: 2015

description: Differential expression testing and set enrichment analysis are commonly used to summarize the results of high throughput biological experiments, to generate biologically meaningful hypothesis for further analysis. and to aid in the planning of validation experiments.

Conventional approaches to differential expression testing and set enrichment analysis do not usually account for individual variation in relevant background features, in many cases due to lack of pertinent data. These features are especially relevant in the context of metabolomics, where blood metabolite levels can react sensitively and quickly to changes in nutrient intake.

In this project we introduce a network based method for detecting differentially expressed metabolites and metabolic pathways, while adjusting for individual variation in the consumption of relevant macronutrients through the integration of nutrition intake data. We test our method on metabolomic and nutrition intake data from a controlled feeding study featuring two distinct diets (a high polyunsaturated fat diet and a high carbohydrate diet).

Our method yields conclusions which are more biologically relevant and have greater statistical significance than those from a conventional approach to differential expression analysis. Thus, our method and its findings may provide greater clarity when generating hypothesis for future research.
Recycled pulsars with multipolar magnetospheres from accretion-induced magnetic burial
Creators: name: Suvorov, Arthur G.
name: Melatos, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Many millisecond pulsars are thought to be old neutron stars spun up (`recycled') during an earlier accretion phase. They typically have relatively weak ($\lesssim 10^{9} \text{ G}$) dipole field strengths, consistent with accretion-induced magnetic burial. Recent data from the Neutron Star Interior Composition Explorer indicate that hot spots atop the recycled pulsar PSR J0030$+$0451 are not antipodal, so that the magnetic field cannot be that of a centered dipole. In this paper it is shown that multipolarity is naturally expected in the burial scenario because of equatorial field line compression. Grad-Shafranov equilibria are constructed to show how magnetic multipole moments can be calculated in terms of various properties, such as the amount of accreted mass and the crustal equation of state.
description: 14 pages, 14 figures. Accepted for publication in MNRAS
Shannonomyia (Shannonomyia) setulicornis Alexander 1971
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Shannonomyia
Shannonomyia setulicornis

description: Shannonomyia (Shannonomyia) setulicornis Alexander, 1971
Original Genus: Shannonomyia; Holotype: male; Type Locality: Panama, Chiriqui Province, El Volcán; Description: Alexander, 1971i; Wing Reference: none; Hypopygium Reference: Alexander, 1971i; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 21, DOI: 10.5281/zenodo.3727017
Gauge-Higgs unification on the brane
Creators: name: Palma, Gonzalo A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From the quantum field theory point of view, matter and gauge fields are generally expected to be localised around branes or topological defects occurring in extra dimensions. Here I discuss a simple scenario where, by starting with a five dimensional SU(3) gauge theory, we end up with several 4-D parallel branes with localised "chiral" fermions and gauge fields to them. I will show that it is possible to reproduce the electroweak model confined to a single brane, allowing a simple and geometrical approach to the fermion hierarchy problem. Some nice results of this construction are: Gauge and Higgs fields are unified at the 5-D level; and new particles are predicted: a left-handed neutrino of zero hypercharge, and a massive vector field coupling together the new neutrino to other left-handed leptons.
description: Contribution to the proceedings of the RTN workshop "The Quest for Unification: Theory Confronts Experiment", Corfu, Greece, Sept 11-18, 2005
Shannonomyia (Shannonomyia) microstyla Alexander 1971
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Shannonomyia
Shannonomyia microstyla

description: Shannonomyia (Shannonomyia) microstyla Alexander, 1971
Original Genus: Shannonomyia; Holotype: male; Type Locality: Panama, Chiriqui Province, El Volcán; Description: Alexander, 1971i; Wing Reference: none; Hypopygium Reference: Alexander, 1971i; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 21, DOI: 10.5281/zenodo.3727017
Scattering in PT-symmetric quantum mechanics
Creators: name: Cannata, F.
name: Dedonder, J. -P.
name: Ventura, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A general formalism is worked out for the description of one-dimensional scattering in non-hermitian quantum mechanics and constraints on transmission and reflection coefficients are derived in the cases of P, T, or PT invariance of the Hamiltonian. Applications to some solvable PT-symmetric potentials are shown in detail. Our main original results concern the association of reflectionless potentials with asymptotic exact PT symmetry and the peculiarities of separable kernels of non-local potentials in connection with hermiticity, T invariance and PT invariance.
description: 41 pages, to appear in Ann. Phys
Shannonomyia (Shannonomyia) galindoi Alexander 1978
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Shannonomyia
Shannonomyia galindoi

description: Shannonomyia (Shannonomyia) galindoi Alexander, 1978
Original Genus: Shannonomyia; Holotype: male; Type Locality: Panama, Chiriqui Province, Fortuna Dam Site; Description: Alexander, 1978b; Wing Reference: Alexander, 1978b; Hypopygium Reference: Alexander, 1978b; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 21, DOI: 10.5281/zenodo.3727017
Epiphragma (Epiphragma) gaigei Alexander 1929
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Epiphragma
Epiphragma gaigei

description: Epiphragma (Epiphragma) gaigei Alexander, 1929
Original Genus: Epiphragma; Holotype: male; Type Locality: Panama, Chiriqui Province, Boquete; Description: Alexander, 1929b; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Dicranomyia (Caenoglochina) lotax
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Dicranomyia
Dicranomyia lotax

description: Dicranomyia (Caenoglochina) lotax (Alexander, 1971)
Original Genus: Limonia; Holotype: male; Type Locality: Panama, Chiriqui Province, El Volcán; Description: (Alexander, 1971i); Wing Reference: none; Hypopygium Reference: Alexander, 1971i; Gelhaus, 2009; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 21, DOI: 10.5281/zenodo.3727017
A field theory in Randers-Finsler spacetime
Creators: name: Silva, J. E. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Finsler geometry is a natural arena to investigate the physics of spacetimes with local Lorentz violating. The directional dependence of the Finsler metric provides a way to encode the Lorentz violating effects into the geometric structure of spacetime. Here, a classical field theory is proposed in a special Finsler geometry, the so-called Randers-Finsler spacetime, where the Lorentz violation is produced by a background vector field. By promoting the Randers-Finsler metric to a differential operator, a Finsler-invariant action for the scalar, gauge and fermions are proposed. The theory contains nonlocal terms, as in the Very Special Relativity based theories. By expanding the Lagrangian, minimal and nonminimal Standard Model Extension terms arises, revealing a perturbative Lorentz violation. For a CPT-even term, the Carrol-Field-Jackiw and derivative extensions are obtained.
description: 12 pages. arXiv admin note: substantial text overlap with arXiv:1602.07345
Προσομοιωτική Μελέτη Διαδικασιών Παραγωγής και Διανομής στην Επιχείρηση Gold Ice:
Creators: name: Τσερτσενέ, Ευαγγελία Θωμά
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Προσομοίωση
Διαδικασίες παγοποιείου
Προσομοιωτικό σύστημα Arena
Simulation
Ice factory procedures
Simulation system Arena

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η προσομοιωτική μελέτη των διαδικασιών παραγωγής και διανομής σε μια παραγωγική επιχείρηση, με βασική επιδίωξη την αναγνώριση της εύρυθμης ή μη λειτουργίας τους και την πραγματοποίηση προτάσεων για τυχόν βελτιώσεις. Για το λόγο αυτό η προσομοίωση εφαρμόστηκε στο παγοποιείο «Gold Ice», συμπεριλαμβάνοντας όλα τα στάδια που προηγούνται και έπονται. Η εργασία ξεκίνησε με μια εκτενή αναφορά στα χαρακτηριστικά και στα πλεονεκτήματα της διαδικασίας της προσομοίωσης, στα πλαίσια λειτουργίας μιας σύγχρονης επιχείρησης, και συνέχισε με ιδιαίτερη αναφορά στο προσομοιωτικό σύστημα Arena, το οποίο και χρησιμοποιήθηκε στην πράξη. Συγκεκριμένα, πραγματοποιήθηκε η μελέτη χρόνου, με τη διαδικασία της χρονομέτρησης των επιμέρους ενεργειών που λαμβάνουν χώρα στο παγοποιείο, η πρόβλεψη της ημερήσιας ζήτησης, η ανάπτυξη του μοντέλου Arena και η αριθμητική ανάλυση των δεδομένων. Από αυτήν την ανάλυση προέκυψε κατά πόσο πρόκειται για μια επιχείρηση με εύρυθμη λειτουργία και έγιναν οι απαραίτητες προτάσεις.
description: The purpose of this diploma thesis is the simulation study of production and distribution procedures in a productive company, where the basic quest is the recognition of the proper or not operation of these procedures and the making of proposals for any improvements. For this reason the simulation was applied to the ice factory «Gold Ice», including all the steps before and after. The study began with an extensive report to the characteristics and the advantages of the procedure of simulation, within the framework of a modern business, and went on with a specific report to simulation system Arena, which was used in practice. Specifically, the study time took place, with the procedure of timekeeping of the individual actions that take place in an ice factory, the prediction of daily demand, the development of the Arena model and the numerical analysis of the data. From this analysis it was revealed whether this is a well-functioning company and were made all the necessary proposals.
Rhipidia (Rhipidia) flabelliformis subsp. flabelliformis flabelliformis (Alexander 1934
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Rhipidia
Rhipidia flabelliformis
Rhipidia (rhipidia) flabelliformis flabelliformis (alexander, 1934)

description: Rhipidia (Rhipidia) flabelliformis flabelliformis (Alexander, 1934)
Original Genus: Limonia; Holotype: male; Type Locality: Panama, Chiriqui Province, Finca Lerida; Description: (Alexander, 1934d); Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Bolivia, Panama, Peru, Venezuela.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 27, DOI: 10.5281/zenodo.3727017
Life and times of dwarf spheroidal galaxies
Creators: name: Salvadori, S.
name: Ferrara, A.
name: Schneider, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a cosmological scenario for the formation and evolution of dwarf spheroidal galaxies (dSphs), satellites of the Milky Way (MW). An improved version of the semi-analytical code GAMETE (GAlaxy Merger Tree & Evolution) is used to follow the dSphs evolution simultaneously with the MW formation, matching the observed properties of both. In this scenario dSph galaxies represent fossil objects virializing at z = 7.2 +/- 0.7 (i.e. in the pre-reionization era z > z_rei = 6) in the MW environment, which at that epoch has already been pre-enriched up to [Fe/H] ~ -3; their dynamical masses are in the narrow range M = (1.6 +/- 0.7) x 10^8 M_sun, although a larger spread might be introduced by a more refined treatment of reionization. Mechanical feedback effects are dramatic in such low-mass objects, causing the complete blow-away of the gas ~100 Myr after the formation epoch: 99% of the present-day stellar mass, M_* = (3 +/- 0.7) x 10^6 M_sun, forms during this evolutionary phase, i.e. their age is >13 Gyr. Later on, star formation is re-ignited by returned gas from evolved stars and a second blow-away occurs. The cycle continues for about 1 Gyr during which star formation is intermittent. At z = 0 the dSph gas content is M_g = (2.68 +/- 0.97) x 10^4 M_sun. Our results match several observed properties of Sculptor, used as a template of dSphs: (i) the Metallicity Distribution Function; (ii) the Color Magnitude Diagram; (iii) the decrement of the stellar [O/Fe] abundance ratio for [Fe/H] > -1.5; (iv) the dark matter content and the light-to-mass ratio; (v) the HI gas mass content.
description: 12 pages, 6 figures, MNRAS accepted
Probing pairing symmetry of Sm_{1.85}Ce_{0.15}CuO_4 via highly-sensitive voltage measurements: Evidence for strong impurity scattering
Creators: name: Lanfredi, A. J. C.
name: Sergeenkov, S.
name: Araujo-Moreira, F. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using a highly-sensitive home-made mutual-inductance technique, temperature profiles of the magnetic penetration depth $λ(T)$ in the optimally-doped $Sm_{1.85}Ce_{0.15}CuO_4$ thin films have been extracted. The low-temperature behavior of $λ(T)$ is found to be best-fitted by linear $Δλ(T)/λ(0)= \ln(2)k_BT/Δ_0$ and quadratic $Δλ(T)/λ(0)=Γ^{-1/2}Δ_0^{-3/2}T^2$ laws above and below $T=0.22T_C$, respectively, which clearly indicates the presence of d-wave pairing mechanism dominated by strong paramagnetic scattering at the lowest temperatures. The best fits produce $Δ_0/k_BT_C=2.07$ and $Γ/T_C=0.25(T_C/Δ_0)^3$ for the estimates of the nodal gap parameter and impurity scattering rate.
Σύγκριση των Βακχών του Ευριπίδη με τον Χριστό πάσχοντα:
Creators: name: Δημαράς, Αλέξανδρος Δημοσθένη
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Βάκχες
Χριστός πάσχων
Διόνυσος-Χριστός
Bacchae
Christus Patiens
Dionysus-Jesus

description: Οι Βάκχες αποτελούν πράγματι μια sui generis τραγωδία. Ο χαρακτηρισμός οφείλεται στο γεγονός ότι είναι η μοναδική σωζόμενη τραγωδία με διονυσιακό θέμα σε συνδυασμό με τη συγκλονιστική ένταση της υπόθεσης και την απαράμιλλη τεχνική αρτιότητα. Ο Χριστός πάσχων από την πλευρά του παρουσιάζει μοναδικές ιδιότητες: είναι η μόνη – από άποψη μορφής τουλάχιστον – βυζαντινή τραγωδία και αναπαριστά τα ιερότερα γεγονότα της χριστιανικής πίστης (Σταύρωση, Ταφή, Ανάσταση). Η σύγκριση που επιχειρήθηκε με την παρούσα εργασία αφορά στην πρόσληψη της αρχαιοελληνικής τραγωδίας από τον (άγνωστο μέχρι στιγμής) βυζαντινό συγγραφέα και στη μετάπλαση που πραγματοποιήθηκε με την προσαρμογή των “εθνικών” στίχων στα χριστιανικά συμφραζόμενα. Ιδιαίτερη έμφαση δόθηκε στις συγκλίσεις μεταξύ των μορφών του Διονύσου και του Χριστού, όπως προκύπτουν από τα κειμενικά δεδομένα. Επίσης παρουσιάζονται εκτενώς οι προσπάθειες ανασύνθεσης των χασμάτων της εξόδου των Βακχών, τα οποία αποκαθίστανται κυρίως με τη βοήθεια στίχων του Χριστού πάσχοντος.
description: Bacchae constitutes a truly unique tragedy. The term applies due to the fact that being the sole surviving tragedy whose focal figure is Dionysus, it amalgamates the sensational intensity of the plot and an impeccable artistry. Christus Patiens on the other hand is yet another unequaled work with exceptional features: it is the only existing Byzantine tragedy - at least in terms of structure - which portrays the most sacred events of the Christian faith (Crucifixion, Burial, Resurrection). The juxtaposition the current dissertation has attempted tackles the reception of the ancient tragedy by the unknown Byzantine author and the transformation which was attained via his adjustment of ‘pagan’ verses to serve a Christian context. Particular emphasis was given to the interrelation between the figures of Dionysus and Jesus, which was established on the basis of textual evidence. Furthermore, the dissertation examines various scholarly attempts of reconstructing the missing parts of the exodus of Bacchae on the basis of the text of Christus Patiens.
Geranomyia carunculata subsp. carunculata carunculata (Alexander 1941
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Geranomyia
Geranomyia carunculata
Geranomyia carunculata carunculata (alexander, 1941)

description: Geranomyia carunculata carunculata (Alexander, 1941)
Original Genus: Limonia; Holotype: male; Type Locality: Panama, Chiriqui Province, Potrerillos; Description: (Alexander, 1941q); Wing Reference: none; Hypopygium Reference: Alexander, 1953o; Panamanian Provinces: Chiriquí; Regional Distribution: Panama, Peru.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 24, DOI: 10.5281/zenodo.3727017
Online Multi-Objective Model-Independent Adaptive Tracking Mechanism for Dynamical Systems
Creators: name: Abouheaf, Mohammed
name: Gueaieb, Wail
name: Spinello, Davide
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The optimal tracking problem is addressed in the robotics literature by using a variety of robust and adaptive control approaches. However, these schemes are associated with implementation limitations such as applicability in uncertain dynamical environments with complete or partial model-based control structures, complexity and integrity in discrete-time environments, and scalability in complex coupled dynamical systems. An online adaptive learning mechanism is developed to tackle the above limitations and provide a generalized solution platform for a class of tracking control problems. This scheme minimizes the tracking errors and optimizes the overall dynamical behavior using simultaneous linear feedback control strategies. Reinforcement learning approaches based on value iteration processes are adopted to solve the underlying Bellman optimality equations. The resulting control strategies are updated in real time in an interactive manner without requiring any information about the dynamics of the underlying systems. Means of adaptive critics are employed to approximate the optimal solving value functions and the associated control strategies in real time. The proposed adaptive tracking mechanism is illustrated in simulation to control a flexible wing aircraft under uncertain aerodynamic learning environment.
description: 29 pages, 15 figures. The manuscript has been published in MDPI Robotics
Phase diagram of neutral quark matter at moderate densities
Creators: name: Ruester, Stefan B.
name: Werth, Verena
name: Buballa, Michael
name: Shovkovy, Igor A.
name: Rischke, Dirk H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the phase diagram of moderately dense, locally neutral three-flavor quark matter using the framework of an effective model of quantum chromodynamics with a local interaction. The phase diagrams in the plane of temperature and quark chemical potential as well as in the plane of temperature and lepton-number chemical potential are discussed.
description: 32 pages, 11 figures; contribution to the proceedings of the INT workshop "Pairing in fermionic systems", Seattle, September 19-23, 2005
Geranomyia subvirescens subsp. subvirescens subvirescens (Alexander 1930
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Geranomyia
Geranomyia subvirescens
Geranomyia subvirescens subvirescens (alexander, 1930)

description: Geranomyia subvirescens subvirescens (Alexander, 1930)
Original Genus: Limonia; Holotype: male; Type Locality: Cuba, Trinidad Mountains; Description: (Alexander, 1930n); Wing Reference: none; Hypopygium Reference: Alexander, 1970g; Gelhaus, 2009; Panamanian Provinces: undetermined; Regional Distribution: cuba, Dominica, Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 25, DOI: 10.5281/zenodo.3727017
Kinetic Study and Thermal Decomposition Mechanisms of Superthermite–Based Nitrocellulose Nanocomposite
Creators: name: Hamed, Abdelaziz
name: Gobara, Mohamed
name: Mokhtar, Mohamed
name: Elbasuney, Sherif
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: As ferric oxide is a well-known catalyst, aluminum can act as a high energy dense material. Ferric oxide/aluminum can experience nanothermite reaction with novel synergistic characteristics. On the other hand, nitrocellulose (NC) is the most energetic polymeric matrix. This study reports on the facile development of thermite-based NC nanocomposite. Ferric oxide nanoparticles (NPs) of 5 nm size and aluminum NPs of 80 nm size were dispersed in acetone. Colloidal ferric oxide/aluminum NPs were integrated into NC matrix via anti-solvent technique. Nanothermite particles offered an increase in NC decomposition enthalpy by 38.59% using differential scanning calorimetry (DSC). The apparent activation energy of NC was reduced by 14% and 14.5%, using Friedman and OZAW models, respectively. Activation energy at different conversion extent was evaluated, and decomposition mechanisms have been suggested to be heterogeneous solid phase reaction. The developed NC nanocomposite is considered bespoke material for first-fire ignition systems; where molten solid particle and high decomposition enthalpy are highly appreciated.
Electric current noise in mesoscopic organic semiconductors
Creators: name: Smirnov, D. S.
name: Shumilin, A. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We demonstrate that nuclear spin fluctuations lead to the electric current noise in the mesoscopic samples of organic semiconductors showing the pronounced magnetoresistance in weak fields. For the bipolaron and electron-hole mechanisms of organic magnetoresistance, the current noise spectrum consists of the high frequency peak related to the nuclear spin precession in the Knight field of the charge carriers and the low frequency peak related to the nuclear spin relaxation. The shape of the spectrum depends on the external magnetic and radiofrequency fields, which allows one to prove the role of nuclei in magnetoresistance experimentally.
description: 9 pages, 7 figures; joint submission with "Dynamics and noise of nuclear spins in box model" by the same authors
Discriminating between different modified dispersion relations from gamma-ray observations
Creators: name: Caroff, S.
name: Pfeifer, C.
name: Bolmont, J.
name: Terzić, T.
name: Campoy-Ordaz, A.
name: Kerszberg, D.
name: Martinez, M.
name: Pensec, U.
name: Plard, C.
name: Strišković, J.
name: Wong, S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The fact that the standard dispersion relation for photons in vacuum could be modified because of their interaction with the quantum nature of spacetime has been proposed more than two decades ago. A quantitative model [Jacob \& Piran, JCAP 01, 031 (2008)], has been tested extensively using distant highly energetic astrophysical sources, searching for energy-dependent time delays in photon arrival times. Since no delay was firmly measured, lower limits were set on the energy scale $Λ$ related to these effects. In recent years, however, different but equally well-grounded expressions beyond the Jacob \& Piran model were obtained for the photon dispersion relation, leading to different expressions for the dependence of lag versus redshift. This article introduces a general parameterization of modified dispersion relations in cosmological symmetry, which directly leads to a general parameterized lag versus redshift dependence encompassing both existing and new models. This parameterization could be used in the future to compare the predicted time lags of the different models and test them against observations. To investigate this possibility, realistic data sets are simulated, mimicking different types of extragalactic sources as detected by current and future instruments. When no lag is injected in the simulated data, each lag-redshift model leads, as expected, to a different value for the limit on $Λ$, and the Jacob \& Piran model gives the most stringent bound. When a lag at $Λ\sim E_P$ in the Jacob \& Piran model is injected, it is detected for all the other lag-redshift relations considered, although leading to different values. Finally, the possibility to discriminate between several lag-redshift models is investigated, emphasizing the importance of an evenly distributed sample of sources across a wide range of redshifts.
description: 12 pages, 4 figures
Four dimensional conformal C-spaces
Creators: name: Gover, A. Rod
name: Nagy, Paul-Andi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A30, 53C24, 53C55

description: We investigate the structure of conformal $C$-spaces,a class of Riemmanian manifolds which naturally arises as aconformal generalisation of the Einstein condition. A basic question is when such a structure is closed, or equivalently locally conformally Cotton. In dimension 4 we obtain a full answer to this question and also investigate the incidence of the Bach condition on this class of metrics. This is related to earlier results obtained in the Einstein-Weyl context.
description: 19 pages