cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
European Regional Development Funds and the economic growth of EU member countries:
Creators: name: Κιοκπάσογλου, Ελισάβετ Συμεών
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Ευρωπαϊκά Διαρθρωτικά Ταμεία
Περιφερειακή Πολιτική
Οικονομική Μεγέθυνση
European Structural Funds
Regional Policy
Economic Growth

description: Σε αυτή τη διπλωματική εργασία, μελετάται ο αντίκτυπος της Περιφερειακής Πολιτικής μέσω των Διαρθρωτικών Ταμείων. Εκτιμούμε την επίδραση των Διαρθρωτικών Ταμείων στην οικονομική μεγέθυνση των χωρών-μελών της Ένωσης και πιο συγκεκριμένα κατά πόσο συμβάλλουν στην αποτελεσματική μείωση των κατά κεφαλήν εισοδηματικών διαφορών. Προς αυτή την κατεύθυνση, εξετάζουμε ένα δείγμα 14 Ευρωπαϊκών χωρών (ΕΕ-14) από το 1995 έως το 2009. Παλινδρομήσαμε τα ποσά των Διαρθρωτικών Ταμείων, σε διαφορετικές μορφές, με την Παραγωγική (Εισοδηματική) Διαφορά της κάθε χώρας από τον μέσο της ΕΕ-14 για να ελέγξουμε την ύπαρξη αποτελέσματος «catching-up». Τα αποτελέσματα μας δείχνουν μια στατιστικά σημαντική, αλλά αδύναμη, επίδραση των Διαρθρωτικών Ταμείων στην κάλυψη της διαφοράς από το μέσο όρο της ΕΕ-14. Οι χώρες κάτω του μέσου εισοδηματικού όρου επωφελούνται περισσότερο αλλά μόνο κατά την πρώτη προγραμματική περίοδο.
description: In this thesis, the impact of the Regional Policy via the Structural Funds is examined. We evaluate the impact of the Structural Funds on the economic growth of the European Union member countries, and more specifically whether the Structural Funds are effective in assisting the member countries to reduce the differences in per capita income levels. In this direction, we examine a sample which consists of the 14 initial EU member countries (EU14) from 1995 up to 2009. We regressed the Structural Funds amounts, in various specifications, upon the Output Differential of each country’s to the EU14 average to examine the existence of a catching-up effect. Our results reveal a statistically significant though weak impact of Structural Funds on catching up the EU14 average, with the below the income average countries, benefiting the most and only being effective for the first programming period.
Exact eigenstates of highly frustrated spin lattices probed in high fields
Creators: name: Schnack, J.
name: Schmidt, H. -J.
name: Honecker, A.
name: Schulenburg, J.
name: Richter, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strongly frustrated antiferromagnets such as the magnetic molecule {Mo72Fe30}, the kagome, or the pyrochlore lattice exhibit a variety of fascinating properties like low-lying singlets, magnetization plateaus as well as magnetization jumps. During recent years exact many-body eigenstates could be constructed for several of these spin systems. These states become ground states in high magnetic fields, and they also lead to exotic behavior. A key concept to an understanding of these properties is provided by independent localized magnons. The energy eigenvalue of these n-magnon states scales linearly with the number n of independent magnons and thus with the total magnetic quantum number M=Ns-n. In an applied field this results in a giant magnetization jump which constitutes a new macroscopic quantum effect. It will be demonstrated that this behavior is accompanied by a massive degeneracy, an extensive (T=0)-entropy, and thus a large magnetocaloric effect at the saturation field. The connection to flat band ferromagnetism will be outlined.
description: 4 pages, submitted to the proceedings of the Yamada Conference LX on Research in High Magnetic Fields, August 16-19, 2006 Sendai, Japan
Diluted maximum-likelihood algorithm for quantum tomography
Creators: name: Rehacek, Jaroslav
name: Hradil, Zdenek
name: Knill, E.
name: Lvovsky, A. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a refined iterative likelihood-maximization algorithm for reconstructing a quantum state from a set of tomographic measurements. The algorithm is characterized by a very high convergence rate and features a simple adaptive procedure that ensures likelihood increase in every iteration and convergence to the maximum-likelihood state. We apply the algorithm to homodyne tomography of optical states and quantum tomography of entangled spin states of trapped ions and investigate its convergence properties.
description: v2: Convergence proof added
The multi-dimensional pencil phenomenon for Laguerre heat-diffusion maximal operators
Creators: name: Nowak, Adam
name: Sjögren, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42C10 (Primary); 42B25 (Secondary)

description: We investigate in detail the mapping properties of the maximal operator associated with the heat-diffusion semigroup corresponding to expansions with respect to multi-dimensional standard Laguerre functions.
description: 30 pages with 1 figure. This paper was published as Preprint 2007:35, Department of Mathematical Sciences, Chalmers University of Technology and University of Gothenburg
Charge and hydration structure of dendritic polyelectrolytes: molecular simulations of polyglycerol sulphate
Creators: name: Nikam, Rohit
name: Xu, Xiao
name: Ballauff, Matthias
name: Kanduč, Matej
name: Dzubiella, Joachim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Macromolecules based on dendritic or hyperbranched polyelectrolytes have been emerging as high potential candidates for biomedical applications. Here we study the charge and solvation structure of dendritic polyglycerol sulphate (dPGS) of generations 0 to 3 in aqueous sodium chloride solution by explicit-solvent molecular dynamics computer simulations. We characterize dPGS by calculating several important properties such as relevant dPGS radii, molecular distributions, the solvent accessible surface area, and the partial molecular volume. In particular, as the dPGS exhibits high charge renormalization effects, we address the challenges of how to obtain a well-defined effective charge and surface potential of dPGS for practical applications. We compare implicit- and explicit-solvent approaches in our all-atom simulations with the coarse-grained simulations from our previous work. We find consistent values for the effective electrostatic size (i.e., the location of the effective charge of a Debye--Hückel sphere) within all the approaches, deviating at most by the size of a water molecule. Finally, the excess chemical potential of water insertion into dPGS and its thermodynamic signature are presented and rationalized.
Δημιουργία ενός εύχρηστου και προσαρμόσιμου συστήματος διαχείρισης βιολογικών σημάτων στο περιβάλλον LabVIEW
Creators: name: Αντωνιάδης, Διαμαντής Λουκά
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Ιατρική συσκευή
μονιτορ
LabVIEW
Medical device
monitor

description: Σκοπός της παρούσας Διπλωματικής Εργασίας ήταν η διερεύνηση της πιθανής χρήσης συστημάτων Data Acquisition βασισμένων σε υπολογιστή συμπληρωματικά ή αντί των χρησιμοποιούμενων σήμερα Ιατρικών συσκευών. Προς το σκοπό αυτό σχεδιάστηκε και αναπτύχθηκε ένα σύστημα διαχείρισης βιολογικών σημάτων, που προσομοιάζει ένα ιατρικό monitor, σε περιβάλλον LabVIEW.
description: The aim of the present thesis was to evaluate the possibility of using Data Acquisition systems based on personal computer complementary or instead of the common medical devices which are currently used. For this purpose, a system managing biological signals, resembling to a medical monitor device was designed, using LabVIEW software.
Magnetic Geodesic Flows on Coadjoint Orbits
Creators: name: Bolsinov, Alexey V.
name: Jovanovic, Bozidar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 70H06, 37J35, 53D25

description: We describe a class of completely integrable $G$-invariant magnetic geodesic flows on (co)adjoint orbits of a compact connected Lie group $G$ with magnetic field given by the Kirillov-Konstant 2-form.
description: 8 pages, final version
PHYTOREMEDIATION CHARACTERISITICS: TAILING WASTE REHABILITATION AT OK TEDI MINING LIMITED, WESTERN PROVINCE PAPUA NEW GUINEA
Creators: name: Dasyal, Nathaniel
name: Betasolo, Mirzi
Publisher: name: Zenodo
Year: 2024

description: Thesis accepted November 2021.  Hardcopy is available at the School of Civil Engineering, Postgraduate School and the Library of the Papua New Guinea University of Technology
Ανθρωπομορφισμός του Θεού ή Θεομορφισμός του ανθρώπου; Σπουδή στο "Κατά ανθρωπομορφιτών" του Κυρίλλου Αλεξανδρείας:
Creators: name: Pantic, Marco Mica (Πάντιτς, Μάρκο)
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Ανθρωπομορφισμός, Θεομορφισμός, ανθρωπομορφίτες
Κατ' εικόνα Θεού, καθ' ομοίωσιν, Θεογνωσία
Γνωσιολογία, ανάπλαση, κάλλος
Anthropomorphism, theomorphism, Anthropomorphites
In the image of God, According to likeness, knowledge of god
Gnoseology, re-making, beauty

description: Στον χώρο της θεολογίας, το φαινόμενο του ανθρωπομορφισμού εντοπίζεται στη διδασκαλία σχετικά με την κατ’ εἰκόνα Θεοῦ ανθρώπινη φύση. Η πιθανή σύγχυση μεταξύ των θεολογικών εκφράσεων εἰκὼν Θεοῦ και κατ’ εἰκόνα Θεοῦ καταργείται χάρη σε μια σημαντική διαφοροποίηση, καθώς ο πρώτος όρος αναφέρεται στον Χριστό ως Υἱὸ τοῦ Θεοῦ, ενώ ο δεύτερος στον άνθρωπο. Συνεπώς, όσον αφορά τα γνωσιολογικά όρια του ανθρώπου για τον Θεό, το κατ’ εἰκόνα Θεοῦ χαρακτηριστικό της ανθρώπινης φύσης τοποθετεί τον άνθρωπο ακριβώς στην πρώτη του υπαρξιακή εμπειρία, δηλαδή στη μετοχή των ενεργειών του Θεού, ενώ θέτει τη νοητική προσέγγιση σε δεύτερο πλάνο. Ο Χριστός-Σαρκωμένος Λόγος του Θεού, κατ’ εἰκόνα του οποίου είναι πλασμένος ο άνθρωπος, αποτελεί τη μοναδική βάση τόσο για τη μετοχή του ανθρώπου στον Θεό όσο και για την «πλήρη» θεογνωσία. Τελικά, ἐν Χριστῷ αποκαλύπτεται όχι μόνο ο Τριαδικός Θεός αλλά και ο άνθρωπος θεωμένος. Αυτή η πραγματικότητα ἐν Χριστῷ αποτυπώνει την πληρέστερη επαφή του ανθρώπου με τον Θεό, καθώς και την ορθότερη κατανόηση του μύθου ως πολιτισμού του Σαρκωμένου Λόγου.
description: In the field of theology the phenomenon of anthropomorphism can be found in the teaching related to the human nature created κατ’ εἰκόνα Θεοῦ. The possible confusion between the theological phrases εἰκὼν Θεοῦ (the image of God) and κατ’ εἰκόνα Θεοῦ (in the image of God) is annulled due to an important differentiation, as the first term refers to Christ as Son of God, while the second refers to man. Consequently, the in the image of God characteristic of human nature places man right in his first existential experience, i.e. the participation in the energies of God, while it puts aside the intellectual approach. Christ – The Incarnated Word of God, in whose image man was created, is the only foundation as much for the participation of man in God as it is for the “full” knowledge of God. Finally, in Christ not only the Triune God is revealed but also deified man. This reality in Christ expresses the most complete contact of man with God and also the most accurate understanding of myth as civilization of Enfleshed Word.
An improved equation of state for air plasma simulations
Creators: name: Träuble, Frederik
name: Millmore, Stephen
name: Nikiforakis, Nikolaos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Applied Physics (physics.app-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This work is concerned with the development of a novel, accurate equation of state for describing partially ionised air plasma in local thermodynamic equilibrium. One key application for this new equation of state is the simulation of lightning strike on aircraft. Due to the complexities of species ionisation and interaction, although phenomenological curve fitting of thermodynamic properties is possible, these curves are intractable for practical numerical simulation. The large difference in size of the parameters (many orders of magnitude) and complexity of the equations means they are not straightforward to invert for conversion between thermodynamic variables. The approach of this paper is to take an accurate 19-species phenomenological model, and use this to generate a tabulated data set. Coupled with a suitable interpolation procedure this offers an accurate and computationally efficient technique for simulating partially ionised air plasma. The equation of state is implemented within a multiphysics methodology which can solve for two-way coupling between a plasma arc and an elastoplastic material substrate. The implementation is validated against experimental results, both for a single material plasma, and an arc coupled to a substrate. It is demonstrated that accurate, oscillation-free thermodynamic profiles can be obtained, with good results even close to material surfaces.
description: 12 pages, 12 figures
Preventing epidemics by wearing masks: An application to COVID-19
Creators: name: Gondim, João A. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The goal of this work is to consider widespread use of face masks as a non-pharmaceutical control strategy for the Covid-19 pandemic. A SEIR model that divides the population into individuals that wear masks and those that do not is considered. After calculating the basic reproductive number by a next generation approach, a criterion for determining when an epidemic can be prevented by the use of masks only and the critical percentage of mask users for disease prevention in the population are derived. The results are then applied to real world data from the United States, Brazil and Italy.
Geometry of the Aharonov-Bohm Effect
Creators: name: Huerfano, R. S.
name: Lopez, M. A.
name: Socolovsky, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 14F05, 14J26

description: We show that the connection responsible for any abelian or non abelian Aharonov-Bohm effect with $n$ parallel ``magnetic'' flux lines in $\R^3$, lies in a trivial $G$-principal bundle $P\to M$, i.e. $P$ is isomorphic to the product $M\times G$, where $G$ is any path connected topological group; in particular a connected Lie group. We also show that two other bundles are involved: the universal covering space $\tilde{M}\to M$, where path integrals are computed, and the associated bundle $P\times_G \C^m \to M$, where the wave function and its covariant derivative are sections.
description: 7 pages
Analysing evolutionary dynamics of bacteria small non-coding RNAs, application to Listeria
Creators: name: Cerutti, Franck
name: Painset, Anaïs
name: Hoede, Claire
name: Moisan, Annick
name: Gaspin, Christine
name: Chiapello Hélène
Publisher: name: F1000Research
Year: 2015

description: Small regulatory RNAs (sRNAs) are ubiquitary widespread in all domains of life. In bacteria, sRNAs include crucial gene expression regulators, acting in a wide range of physiological processes. Studying evolutionary scenarii of sRNAs gains and losses is important to better understand the origin of sRNAs-mediated regulation in bacteria. The aim of this study consists in analyzing the evolutionary dynamics of Listeria monocytogenes EGD-e strain sRNAs among all sequenced genomes of the Listeria genus.

For this purpose, we first built a presence/absence matrix of L. monocytogenes EGD-e sRNAs among all sequenced genomes of the Listeria genus. A phylogenetic tree of strains was then built using a supertree approach named Matrix Representation with Parsimony (MRP). This tree was used as a reference in order to infer sRNAs ancestral states using Sankoff parsimony with DELTRAN optimization. Evolutionary patterns of sRNAs were then analyzed according to Listeria strain phenotypes and host specificities.

First results of this study show that the majority of Listeria monocytogenes sRNAs are conserved in all strains of the Listeria genus. The results obtained on some strain-specific sRNAs suggest different evolutionary scenarii depending on the type of sRNA. By considering broader evolutionary scale like the entire firmicute phylum, we will be able to better understand the evolutionary history of all Listeria sRNAs, including those conserved in all strains.
Trentepohlia (Paramongoma) extensa
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Trentepohlia
Trentepohlia extensa

description: Trentepohlia (Paramongoma) extensa (Alexander, 1913)
Original Genus: Mongoma; Holotype: female; Type Locality: Panama, Panama Province, Culebra; Description: (Alexander, 1913d); Wing Reference: Alexander, 1913d; Hypopygium Reference: none; Panamanian Provinces: Panama; Regional Distribution: Brazil, Guyana, 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 28, DOI: 10.5281/zenodo.3727017
SUSTAINABLE AND SCALABLE WIRELESS SENSOR NETWORK ALGORITHMS
Creators: name: S. Hilda & C. Kalaiselvi
Publisher: name: Zenodo
Year: 2025

description: The rapid growth of data sources, including audio, video, text, images, cloud storage, web content, RFID, and sensors, has made big data an essential research area. Among the significant contributors to big data are Wireless Sensor Networks (WSNs), which consist of numerous sensor nodes responsible for monitoring environmental and physical conditions such as temperature, pressure, and humidity. However, one of the main challenges in WSNs is energy consumption, as it directly impacts the operational lifespan and reliability of sensor nodes. Efficient energy utilization is crucial for enhancing network performance and sustainability. Various algorithms and protocols have been developed to address this issue by optimizing energy consumption and extending the network’s longevity. This paper reviews prominent energy-efficient algorithms used in WSNs, such as LEACH, PEGASIS, and KOCA, discussing their methodologies and impact on network performance. Additionally, it highlights advancements in energy-efficient techniques and explores potential future research directions in WSN optimization. By analyzing existing approaches, this study aims to provide insights into improving energy efficiency in sensor networks, contributing to the development of more robust and sustainable WSNs. The findings can assist researchers and engineers in designing more effective energy management strategies for wireless sensor networks.
Data Driven Microstructural Design of Porous Electrodes
Creators: name: Deva, Abhas
Publisher: name: Purdue University Graduate School
Year: 2024
Subjects: classificationCode: 400803
subject: Electrical energy generation (incl. renewables, excl. photovoltaics)
classificationCode: 401699
subject: Materials engineering not elsewhere classified

description: Porous lithium ion battery (LIB) electrodes are comprised of electrochemically active material particles that store lithium and a surrounding conductive binder, liquid electrolyte, carbon black mixture that facilitates ionic and electronic transport. Typically, lithium diffusivity is several orders of magnitude smaller in the active material as compared to the surrounding electrolyte, making the electrode microstructure a governing factor in determining the balance between its lithium storage capacity and transport rate. Here, the effects of microstructure on the performance of LIBs are systematically analyzed at three length scales - the single particle length scale, the spatially resolved multiple particle length scale, and the porous electrode layer (homogenized) length scale. At the single particle length scale, a thermodynamically consistent variational framework is presented to examine the effects of crystallographic anisotropy, crystallographic texture, grain size, and grain morphology on the LiNi1/3Mn1/3Co1/3O2 (NMC111) chemistry. The theory was extended to the spatially resolved multiple particle length scale and the porous electrode layer length scale to explain the microstructural origin of experimentally observed instances of apparent phase separation in NMC111. At the electrode length scale, a data driven framework is presented to evaluate the electrochemical performance of a wide range of particle morphologies and battery architectures. Specifically, microstructural characteristics of 53 356 microstructures are assessed, and strategies to optimize electrode design parameters such as active particle morphology, spatial orientation, electrode porosity, and cell thickness are presented.
Trentepohlia (Paramongoma) chiriquiana 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
Trentepohlia
Trentepohlia chiriquiana

description: Trentepohlia (Paramongoma) chiriquiana Alexander, 1934
Original Genus: Trentepohlia; Holotype: female; Type Locality: Panama, Chiriqui Province, Finca Parada; Description: Alexander, 1934d; 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 28, DOI: 10.5281/zenodo.3727017
Optical Modulation of Electron Beams in Free Space
Creators: name: de Abajo, F. Javier García
name: Konečná, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We exploit free-space interactions between electron beams and tailored light fields to imprint on-demand phase profiles on the electron wave functions. Through rigorous semiclassical theory involving a quantum description of the electrons, we show that monochromatic optical fields focused in vacuum can be used to correct electron beam aberrations and produce selected focal shapes. Stimulated elastic Compton scattering is exploited to imprint the phase, which is proportional to the integrated optical field intensity along the electron path and depends on the transverse beam position. The required light intensities are attainable in currently available ultrafast electron microscope setups, thus opening the field of free-space optical manipulation of electron beams.
description: 10 pages, 4 figures, 67 references
MPEC 2025-H117 : 2025 HP2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 HP2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Toxorhina (Toxorhina) centralis
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Toxorhina
Toxorhina centralis

description: Toxorhina (Toxorhina) centralis (Alexander, 1913)
Original Genus: Toxorhina; Holotype: male; Type Locality: Suriname; Description: (Alexander, 1913b); Wing Reference: Alexander, 1913b; Alexander 1933a; Hypopygium Reference: none; Panamanian Provinces: Bocas del Toro; Regional Distribution: Brazil, Costa Rica, Guatemala, Guyana, Mexico, Panama, Suriname.
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 28, DOI: 10.5281/zenodo.3727017
On the origin of unusual transport properties observed in densely packed polycrystalline CaAl_{2}
Creators: name: Sergeenkov, S.
name: Araujo-Moreira, F. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A possible origin of unusual temperature behavior of transport coefficients observed in densely packed polycrystalline CaAl_{2} compound [M. Ausloos et al., J. Appl. Phys. 96, 7338 (2004)] is discussed, including a power-like dependence of resistivity with $ρ\propto T^{-3/4}$ and N-like form of the thermopower. All these features are found to be in good agreement with the Shklovskii-Efros localization scenario assuming polaron-mediated hopping processes controlled by the Debye energy.
Rough-Surface Shadowing of Self-Affine Random Rough Surfaces
Creators: name: Parviainen, Hannu
name: Muinonen, Karri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Light scattering from self-affine homogeneous isotropic random rough surfaces is studied using the ray-optics approximation. Numerical methods are developed to accelerate the first-order scattering simulations from surfaces represented as single-connected single-valued random fields, and to store the results of the simulations into a numerical reflectance model. Horizon mapping and marching methods are developed to accelerate the simulation. Emphasis is given to the geometric shadowing and masking effects as a function of surface roughness, especially, to the azimuthal rough-surface shadowing effect.
description: Published in JQSRT 106 (2007)
Electric field tunable unconventional superconductivity in alternating twist magic-angle trilayer graphene
Creators: name: Hao, Zeyu
name: Zimmerman, A. M.
name: Ledwith, Patrick
name: Khalaf, Eslam
name: Najafabadi, Danial Haie
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Vishwanath, Ashvin
name: Kim, Philip
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct a van der Waals heterostructure consisting of three graphene layers stacked with alternating twisting angles $\pmθ$. At the average twist angle $θ\sim 1.56^{\circ}$, a theoretically predicted magic angle for the formation of flat electron bands, narrow conduction and valence moiré bands appear together with a linearly dispersing Dirac band. Upon doping the half-filled moiré valence band with holes, or the half-filled moiré conduction band with electrons, displacement field tunable superconductivity emerges, reaching a maximum critical temperature of 2.1 K at optimal doping and displacement field. By tuning the doping level and displacement fields, we find that superconducting regimes occur in conjunction with flavour polarization of moiré bands bounded by a van Hove singularity (vHS) at high displacement fields. This experimental observation is found to be inconsistent with a weak coupling description, suggesting that the observed moiré superconductivity has an unconventional nature.
description: 35 pages, 14 figures. Supplementary materials added
Edge Degeneracy: Algorithmic and Structural Results
Creators: name: Limnios, Stratis
name: Paul, Christophe
name: Perret, Joanny
name: Thilikos, Dimitrios M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: G.2.2
subject: 05C85

description: We consider a cops and robber game where the cops are blocking edges of a graph, while the robber occupies its vertices. At each round of the game, the cops choose some set of edges to block and right after the robber is obliged to move to another vertex traversing at most $s$ unblocked edges ($s$ can be seen as the speed of the robber). Both parts have complete knowledge of the opponent's moves and the cops win when they occupy all edges incident to the robbers position. We introduce the capture cost on $G$ against a robber of speed $s$. This defines a hierarchy of invariants, namely $δ^{1}_{\rm e},δ^{2}_{\rm e},\ldots,δ^{\infty}_{\rm e}$, where $δ^{\infty}_{\rm e}$ is an edge-analogue of the admissibility graph invariant, namely the {\em edge-admissibility} of a graph. We prove that the problem asking wether $δ^{s}_{\rm e}(G)\leq k$, is polynomially solvable when $s\in \{1,2,\infty\}$ while, otherwise, it is NP-complete. Our main result is a structural theorem for graphs of bounded edge-admissibility. We prove that every graph of edge-admissibility at most $k$ can be constructed using $(\leq k)$-edge-sums, starting from graphs whose all vertices, except possibly from one, have degree at most $k$. Our structural result is approximately tight in the sense that graphs generated by this construction always have edge-admissibility at most $2k-1$. Our proofs are based on a precise structural characterization of the graphs that do not contain $θ_{r}$ as an immersion, where $θ_{r}$ is the graph on two vertices and $r$ parallel edges.
description: The paper has appeared as "Stratis Limnios, Christophe Paul, Joanny Perret, Dimitrios M. Thilikos: Edge degeneracy: Algorithmic and structural results. Theor. Comput. Sci. 839: 164-175 (2020)". This is a new version where a typo has been corrected. In particular, "$1,2,3$" is now "$1,2$" and "$\Bbb{N}_{\geq 4}$" is now "$\Bbb{N}_{\geq 3}$"
Managing sensitive data for public information: a use cases review of the French water information system
Creators: name: Liccardi, Alexandre
name: Coudercy, Laurent
name: Breton, Laurent
name: Hissel, François
name: Lagarde, Pierre
Publisher: name: Zenodo
Year: 2019
Subjects: environmental data
public policies

description: Access to environmental information is a major momentum for public policies. In many ways, data publication is known as a key factor for topics appropriation by stakeholders, and can be used as an effective lever towards public opinions. Furthermore, collecting data and guaranteeing their public access are legal obligations for EU Member States since the early 2000’s.
 This study compares three institutional and technical processes: (i) river boat fishing monitoring and related quotas, (ii) commercial and personal water abstraction declaration facilities and (iii) the register of plant protection products sales. Two main axes are chosen to highlights differences in process and policy efficiency, as far as data are concerned: level of technical complexity and maturity of processes (for instance, acceptance by stakeholder).
 Main conclusions echo with others data policies reviews: technical feasibility doesn’t seem to be the main barrier in studied cases, whereas knowledge of purely functional and organizational trade aspects (established know-how and expertise) is a key element for success. Also, open data strategies should still prevail in public services, where departitioning data, informatics, scientific, organizational and legal task forces is a great concern. Beyond this coordination issues, because environmental phenomena don’t know frontiers nor boundaries, international frameworks and initiatives should prevail on local engineering, regardless of local data strategies, as far as national secrecies and policies are heeded.
Toxorhina (Ceratocheilus) americana
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Toxorhina
Toxorhina americana

description: Toxorhina (Ceratocheilus) americana (Alexander, 1913)
Original Genus: Ceratocheilus; Holotype: female; Type Locality: Panama, Panama Province, Culebra; Description: (Alexander, 1913b); Wing Reference: Alexander, 1913b; Gelhaus, 2009; Hypopygium Reference: none; Panamanian Provinces: Panama; Regional Distribution: Brazil, Colombia, Costa Rica, Guyana, 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 28, DOI: 10.5281/zenodo.3727017
A weak acceleration effect due to residual gravity in a multiply connected universe
Creators: name: Roukema, Boudewijn F.
name: Bajtlik, Stanislaw
name: Biesiada, Marek
name: Szaniewska, Agnieszka
name: Jurkiewicz, Helena
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Could cosmic topology imply dark energy? We use a weak field (Newtonian) approximation of gravity and consider the gravitational effect from distant, multiple copies of a large, collapsed (virialised) object today (i.e. a massive galaxy cluster), taking into account the finite propagation speed of gravity, in a flat, multiply connected universe, and assume that due to a prior epoch of fast expansion (e.g. inflation), the gravitational effect of the distant copies is felt locally, from beyond the naively calculated horizon. We find that for a universe with a $T^1xR^2$ spatial section, the residual Newtonian gravitational force (to first order) provides an anisotropic effect that repels test particles from the cluster in the compact direction, in a way algebraically similar to that of dark energy. For a typical test object at comoving distance $χ$ from the nearest dense nodes of the cosmic web of density perturbations, the pressure-to-density ratio $w$ of the equation of state in an FLRW universe, is w \sim - (χ/L)^3, where $L$ is the size of the fundamental domain, i.e. of the universe. Clearly, |w|<<1. For a T^3 spatial section of exactly equal fundamental lengths, the effect cancels to zero. For a T^3 spatial section of unequal fundamental lengths, the acceleration effect is anisotropic in the sense that it will *tend to equalise the three fundamental lengths*. Provided that at least a modest amount of inflation occurred in the early Universe, and given some other conditions, multiple connectedness does generate an effect similar to that of dark energy, but the amplitude of the effect at the present epoch is too small to explain the observed dark energy density and its anisotropy makes it an unrealistic candidate for the observed dark energy.
description: 12 pages, 8 figures, accepted by Astronomy & Astrophysics; v2 includes 3D calculation and result; v3 includes analysis of numerical simulation, matches accepted version
New physical wavelet 'Gaussian Wave Packet'
Creators: name: Perel, Maria V
name: Sidorenko, Mikhail S
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35L05; 42C40; 65T60

description: An exact solution of the homogeneous wave equation, which was found previously, is treated from the point of view of continuous wavelet analysis (CWA). If time is a fixed parameter, the solution represents a new multidimensional mother wavelet for the CWA. Both the wavelet and its Fourier transform are given by explicit formulas and are exponentially localized. The wavelet is directional. The widths of the wavelet and the uncertainty relation are investigated numerically. If a certain parameter is large, the wavelet behaves asymptotically as the Morlet wavelet. The solution is a new physical wavelet in the definition of Kaiser, it may be interpreted as a sum of two parts: an advanced and a retarded part, both being fields of a pulsed point source moving at a speed of wave propagation along a straight line in complex space-time.
description: 31 pages, 9 figures, submitted to J. Phys. A: Math. Theor
Rhipidia (Rhipidia) shannoni Alexander 1914
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 shannoni

description: Rhipidia (Rhipidia) shannoni Alexander, 1914
Original Genus: Rhipidia; Holotype: male; Type Locality: USA, Plummer’s Island, Maryland; Description: Alexander, 1914k; Wing Reference: Alexander, 1914k; Alexander 1919d; Hypopygium Reference: Alexander, 1943k; Panamanian Provinces: Panama; Regional Distribution: Panama, USA.
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 28, DOI: 10.5281/zenodo.3727017
Θεωρία της Δικαιοσύνης και πολιτική κοινωνία στον John Rawls: η πολιτική οργάνωση, οι θεσμοί και η οικονομία της εύτακτης κοινωνίας
Creators: name: Κουφοπούλου, Χριστίνα Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Ρωλς
Θεωρία Δικαιοσύνης
Εύτακτη κοινωνία
Rawls
Theory of Justice
Well-ordered society

description: Στην παρούσα εργασία εξετάζεται κατά πόσο η εύτακτη κοινωνία και οι δύο αρχές δικαιοσύνης του John Rawls μπορούν να συγκινήσουν και να αποτελέσουν μια εναλλακτική πρόταση οργάνωσης των σύγχρονων κοινωνιών. Επιπλέον, αναζητούνται τα χαρακτηριστικά ενός πολιτικοοικονομικού συστήματος που θα στηρίζεται στις δύο αρχές της δικαιοσύνης. Στο πρώτο κεφάλαιο αναπτύσσονται οι βασικές έννοιες της θεωρίας του Rawls και η κριτική που του έχει ασκηθεί από τους Nozick, Santel και Wolin. Έμφαση δίνεται στη θέση του Rawls ότι οι άνθρωποι μπορούν να λειτουργούν ως πρόσωπα έλλογα και ορθολογικά. Στο δεύτερο κεφάλαιο παρουσιάζεται το πολίτευμα, οι πολιτικοί θεσμοί, τα δικαιώματα και οι ελευθερίες των πολιτών της εύτακτης κοινωνίας. Στο τρίτο κεφάλαιο εξετάζονται θέματα που σχετίζονται με τον τρόπο λειτουργίας της οικονομίας και, φυσικά, το αίτημα της ισότητας.
description: The aim of this paper is to examine whether the well-ordered society and the two principles of justice of John Rawls can on the one hand inspire and motivate people and on the other become an alternative for the organization of modern societies. Furthermore, we are looking for the characteristics of a politico-economic system based on the two principles of justice. In the first chapter, we examine the basic concepts of the Rawls’ theory and the criticism which has been levelled by Nozick, Santel and Wolin. Emphasis is given to the position of Rawls that people can act as rational and reasonable persons. The second chapter describes the system of government, political institutions, rights and freedoms of the citizens of the well-ordered society. The third chapter discusses issues related to the economy and, of course, the claim of equality.
Rhipidia (Rhipidia) costaloides Alexander 1920
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 costaloides

description: Rhipidia (Rhipidia) costaloides Alexander, 1920
Original Genus: Rhipidia; Holotype: female; Type Locality: Panama, Darien Province, Quebrada Richa, a branch a rio Tapaliza; Description: Alexander, 1920e; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Darién; 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 27, DOI: 10.5281/zenodo.3727017
Αριθμητική μελέτη του ηλεκτρομαγνητικού πεδίου από κοχλιακά εμφυτεύματα:
Creators: name: Τζιομάκη, Μαγδαληνή Αποστόλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Κοχλιακά εμφυτεύματα
Κατανομή SAR
SEMCAD-X
Cochlear implants
SAR distribution

description: Η κοχλιακή εμφύτευση είναι μια από τις σημαντικότερες ανακαλύψεις των τελευταίων ετών της ιατρικής και τις βιοτεχνολογίας. Δίνει την αίσθηση της ακοής σε άτομα τα οποία είτε άκουσαν, αλλά έχασαν την ακοή τους στη μετέπειτα ζωή, είτε δεν άκουσαν ποτέ. Το κοχλιακό εμφύτευμα είναι μια ηλεκτρονική συσκευή η οποία αντικαθιστά τα αισθητικά τριχωτά κύτταρα του οργάνου του Corti στον κοχλία. Τοποθετείται εκεί μετά από λεπτή χειρουργική επέμβαση και μεταδίδει τα ακουστικά μηνύματα υπό μορφή ηλεκτρικής ενέργειας κατευθείαν στις ίνες του ακουστικού νεύρου. Η χρήση κοχλιακού εμφυτεύματος ενδείκνυται για την αντιμετώπιση της αμφοτερόπλευρης κώφωσης και της μεγάλου βαθμού νευροαισθητήρια βαρηκοΐα, σε παιδιά αλλά και σε ενήλικες, στους οποίους η χρήση των ακουστικών βαρηκοΐας δεν συνεισφέρει στην ανάπτυξη της ομιλίας. Εδώ στην Ελλάδα, η μέθοδος της κοχλιακής εμφύτευσης εφαρμόζεται από το 1995 (Νοσοκομείο ΑΧΕΠΑ) Στην παρούσα εργασία μελετάται η διάδοση της ηλεκτρομαγνητικής ακτινοβολίας στους χρήστες κοχλιακών εμφυτευμάτων καθώς και η αύξηση της θερμοκρασίας που προκαλείται από τη μακροχρόνια χρήση αυτών. Με τη χρήση του προγράμματος προσομοίωσης SEMCAD-X, και της μεθόδου FDTD μελετήθηκε η κατανομή του SAR στον εγκέφαλο ενός ενήλικα καθώς και ενός παιδιού, στις βασικές συχνότητες λειτουργίας των κοχλιακών εμφυτευμάτων, οι οποίες είναι τα 5MHz, 11MHz και 49MHz. Τέλος, στη συχνότητα των 49MHz πραγματοποιήθηκε και θερμική προσομοίωση για την μελέτη της αύξησης της θερμοκρασίας στους εγκεφαλικούς ιστούς.
description: The cochlear implant is one of the most important discoveries in medicine and in biotechnology at the past few years. It gives the sense of hearing to people who either had their hearing but they lost it as they got older, or they never had the sense of hearing. The cochlear implant is an electronic device which replaces the sensory hair cells in the organ of Corti inside the cochlea. It placed there after surgery and delivers audio messages in form of electric current directly to the auditory nerve fibers. The use of cochlear implant is indicated for the treatment of bilateral deafness and a high degree of sensorineural hearing loss in children and in adults, in whom the use of conventional hearing aids does not contribute to the development of speech. Here in Greece, the method of cochlear implantation is applied since 1995 (AHEPA Hospital) In this paper we study the propagation of electromagnetic radiation for cochlear implant users and the increase in temperature caused by long-term use of cochlear implants. Using the simulation program SEMCAD-X, and the FDTD method we studied the distribution of SAR in the brain of an adult and a child, in the basic operating frequencies of cochlear implants, which are 5MHz, 11MHz and 49MHz. Finally, for the frequency of 49MHz we also run a thermal simulation in order to study the temperature increase in the brain tissues.
Orimarga (Orimarga) niveitarsis Alexander 1915
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Orimarga
Orimarga niveitarsis

description: Orimarga (Orimarga) niveitarsis Alexander, 1915
Original Genus: Orimarga; Holotype: female; Type Locality: Panama, Colon Province, Portobelo; Description: Alexander, 1915a; Wing Reference: Alexander, 1915a; Gelhaus (2009); Hypopygium Reference: none; Panamanian Provinces: Colón; 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 27, DOI: 10.5281/zenodo.3727017
Revisiting and modeling the magnetism of hole-doped CuO_2 spin chains in Sr{14-x}Ca_xCu_{24}O_{41}
Creators: name: Schnack, J.
name: Klingeler, R.
name: Kataev, V.
name: Buechner, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetization measurements of Sr{14-x}Ca_xCu_{24}O_{41} with 0 <= x <=12 in magnetic fields up to 16 T show that the low-temperature magnetic response of the CuO_2 spin chains changes strongly upon Ca doping. For x=0 quantum statistical simulations yield that the temperature and field dependence of the magnetization can be well described by an effective Heisenberg model in which the ground state configuration is composed of spin dimers, trimers, and monomers. For x>0 a constant contribution to the low-temperature magnetic susceptibility is observed which cannot be explained in terms of simple chain models. Alternative scenarios are outlined.
description: 2 pages, submitted to the proceedings of the ICM, Kyoto, Japan, August 2006
Orimarga (Orimarga) melampodia Alexander 1940
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Orimarga
Orimarga melampodia

description: Orimarga (Orimarga) melampodia Alexander, 1940
Original Genus: Orimarga; 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 27, DOI: 10.5281/zenodo.3727017
Orimarga (Diotrepha) setosivena 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
Orimarga
Orimarga setosivena

description: Orimarga (Diotrepha) setosivena Alexander, 1971
Original Genus: Orimarga; Holotype: male; Type Locality: Panama, Chiriqui Province, El Volcán; Description: Alexander, 1971i; Wing Reference: Alexander, 1971i; 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 27, DOI: 10.5281/zenodo.3727017
Orimarga (Diotrepha) quinquefusca 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
Orimarga
Orimarga quinquefusca

description: Orimarga (Diotrepha) quinquefusca Alexander, 1971
Original Genus: Orimarga; Holotype: male; Type Locality: Panama, Chiriqui Province, Cerro Punta; Description: Alexander, 1971i; 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 27, DOI: 10.5281/zenodo.3727017
Tipula (Microtipula) spinicauda Alexander 1919
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bibionidae
Tipula
Tipula spinicauda

description: Tipula (Microtipula) spinicauda Alexander, 1919
Original Genus: Tipula; Holotype: male; Type Locality: Panama, Darien Province, Rio Chico; Description: Alexander, 1919k; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Darien; 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 30, DOI: 10.5281/zenodo.3727017