cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Πολιτική Οικονομία Διεθνούς Εμπορίου: Θεωρητική και Εμπειρική Διερεύνηση
Creators: name: Παρασκευοπούλου, Χριστίνα Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Διεθνές εμπόριο
Πίνακες Εισροών- Εκροών
Άνιση Ανταλλαγή
Ανταγωνισμός
International trade
Input-Output Tables
Unequal Exchange
Competition

description: Σκοπός της παρούσας διατριβής είναι να συμβάλλει θεωρητικά και εμπειρικά στον επιστημονικό διάλογο σχετικά με το εάν ισχύει το απόλυτο ή το συγκριτικό πλεονέκτημα, ως ρυθμιστική αρχή του διεθνούς εμπορίου. Για αυτόν τον λόγο προσπαθεί συνοπτικά να εντάξει μέσα σε ένα γενικότερο πλαίσιο ανάλυσης, έννοιες που σχετίζονται με την Εργασιακή Θεωρία της Αξίας, τις Θεωρίες του Ανταγωνισμού και, τέλος, τις Θεωρίες του Εμπορίου. Τα ερευνητικά ερωτήματα που θέτει η διατριβή επικεντρώνονται στην εμπειρική διερεύνηση του ‘Παράδοξου του Leontief’ και της Άνισης Ανταλλαγής όπως αυτή παρατηρείται μέσα από τις μεταβιβάσεις αξίας. Η εμπειρική τεκμηρίωση των ερευνητικών ερωτημάτων προκύπτει μέσα από τη μέθοδο της κάθετης ολοκλήρωσης και την ανάλυση των Πινάκων Εισροών Εκροών. Τα συμπεράσματα της έρευνας συνηγορούν υπέρ του απόλυτου πλεονεκτήματος ως ρυθμιστικής αρχής του διεθνούς εμπορίου. Ειδικότερα, τα αποτελέσματα αναφορικά με την Άνιση Ανταλλαγή υποδηλώνουν ότι καθοριστικός παράγοντας για τις μεταβιβάσεις αξίας είναι ο κοινωνικά αναγκαίος χρόνος εργασίας που απαιτείται για την παραγωγή ενός εμπορεύματος. Η εμπειρική διερεύνηση αφορά το διμερές εμπόριο μεταξύ Ελλάδας -Γερμανίας στην περίοδο 1995-2011. Επίσης, τα εμπειρικά αποτελέσματα επιβεβαιώνουν τη διαχρονική ισχύ του ‘Παράδοξου του Leontief’ στις ΗΠΑ για την περίοδο 1997-2012 με αποτέλεσμα να τίθεται υπό αμφισβήτηση η αρχή που διέπει τις σύγχρονες θεωρίες εμπορίου σχετικά με την αφθονία των παραγωγικών συντελεστών.
description: The dissertation aims at contributing both theoretically and empirically to the scientific dialogue as to whether absolute or comparative advantage is the regulatory principle of international trade. The theoretical part of the dissertation presents the labor theory of value, competition and trade theories. In the empirical part, it raises research questions that focus on the famous ‘Leontief's Paradox’ and the notion of Unequal Exchange and transfers of value. The research method is that of vertical integration and within the context of Input Output Analysis. The results lend support to the absolute cost advantage theory as the regulatory principle of international trade rather than to comparative advantage one. The empirical analysis for the Unequal Exchange approach advocate that the feature for the transfers of values, is the socially necessary labor time needed for the production of a commodity. In addition, the empirical results confirm the persistence of ‘Leontief's Paradox’ in the United States in the international trade for the period 1997-2012.By that the dissertation raise doubts about the principle of the factor abundance which governs modern trade theories.
Quantization of symplectic vector spaces over finite fields
Creators: name: Gurevich, Shamgar
name: Hadani, Ronny
Publisher: name: arXiv
Year: 2007
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we construct a quantization functor, associating a complex vector space H(V) to a finite dimensional symplectic vector space V over a finite field of odd characteristic. As a result, we obtain a canonical model for the Weil representation of the symplectic group Sp(V). The main new technical result is a proof of a stronger form of the Stone-von Neumann property for the Heisenberg group. Our result answers, for the case of the Heisenberg group, a question of Kazhdan about the possible existence of a canonical vector space attached to a coadjoint orbit of a general unipotent group over finite field.
description: Results obtained: March 2005 (under the direction of Ph.D. advisor Joseph Bernstein, Tel-Aviv, Israel) Keywords: Strong Stone-von Neumann theorem, canonocal Hilbert space, quantization functor, Weil representation
Additional file 6 of Performance of waist-to-height ratio as a screening tool for identifying cardiometabolic risk in children: a meta-analysis
Creators: name: Jiang, Yuan
name: Dou, Yalan
name: Chen, Hongyan
name: Zhang, Yi
name: Chen, Xiaotian
name: Wang, Yin
name: Rodrigues, Myanca
name: Yan, Weili
Publisher: name: figshare
Year: 2021
Subjects: Biochemistry
Medicine
Cell Biology
Pharmacology
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Additional file 6: Table S4. Pooled results of WHtR screening for CMRs by sex in children and adolescents.
What happened before? -- The disks around the precursors of young Herbig Ae/Be stars
Creators: name: Valegård, P. G.
name: Waters, L. B. F. M.
name: Dominik, C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We seek to find the precursors of the Herbig Ae/Be stars in the solar vicinity within 500 pc from the Sun. We do this by creating an optically selected sample of intermediate mass T-Tauri stars (IMTT stars) here defined as stars of masses $1.5 M_{\odot}\leq M_* \leq 5 M_{\odot}$ and spectral type between F and K3, from literature. We use literature optical photometry (0.4-1.25$μ$m) and distances determined from Gaia DR2 parallax measurements together with Kurucz stellar model spectra to place the stars in a HR-diagram. With Siess evolutionary tracks we identify intermediate mass T-Tauri stars from literature and derive masses and ages. We use Spitzer spectra to classify the disks around the stars into Meeus Group I and Group II disks based on their [F$_{30}$/F$_{13.5}$] spectral index. We also examine the 10$μ$m silicate dust grain emission and identify emission from Polycyclic Aromatic Hydrocarbons (PAH). From this we build a qualitative picture of the disks around the intermediate mass T-Tauri stars and compare this with available spatially resolved images at infrared and at sub-millimeter wavelengths to confirm our classification. We find 49 intermediate mass T-Tauri stars with infrared excess. The identified disks are similar to the older Herbig Ae/Be stars in disk geometries and silicate dust grain population. Spatially resolved images at infra-red and sub-mm wavelengths suggest gaps and spirals are also present around the younger precursors to the Herbig Ae/Be stars. Comparing the timescale of stellar evolution towards the main sequence and current models of protoplanetary disk evolution the similarity between Herbig Ae/Be stars and the intermediate mass T-Tauri stars points towards an evolution of Group I and Group II disks that are disconnected, and that they represent two different evolutionary paths.
description: 25 pages, 9 figures, 8 tables, accepted by Astronomy & Astrophysics
VLBA determination of the distance to nearby star-forming regions II. Hubble 4 and HDE 283572 in Taurus
Creators: name: Torres, Rosa M.
name: Loinard, Laurent
name: Mioduszewski, Amy J.
name: Rodriguez, Luis F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The non-thermal 3.6 cm radio continuum emission from the naked T Tauri stars Hubble 4 and HDE 283572 in Taurus has been observed with the Very Long Baseline Array (VLBA) at 6 epochs between September 2004 and December 2005 with a typical separation between successive observations of 3 months. Thanks to the remarkably accurate astrometry delivered by the VLBA, the trajectory described by both stars on the plane of the sky could be traced very precisely, and modeled as the superposition of their trigonometric parallax and uniform proper motion. The best fits yield distances to Hubble 4 and HDE 283572 of 132.8 +/- 0.5 and 128.5 +/- 0.6 pc, respectively. Combining these results with the other two existing VLBI distance determinations in Taurus, we estimate the mean distance to the Taurus association to be 137 pc with a dispersion (most probably reflecting the depth of the complex) of about 20 pc.
description: 21 pages, 4 figues, accepted in ApJ (Dec 20, 2007 issue)
THE SEMANTIC FIELD OF CRYING (YIG'I SEMANTIK MAYDONI)
Creators: name: Azimova, Muxtasarxon
Publisher: name: Zenodo
Year: 2024

description: This article explores the semantic field of crying ("yig'i semantik maydoni") within the Uzbek language, highlighting its emotional, cultural, and linguistic dimensions. It discusses theoretical perspectives on emotion, emphasizing the dual nature of crying as both a biological and cultural phenomenon. The article examines cultural influences on the acceptability and expression of crying, particularly in mourning rituals, and analyzes the rich lexical structures in Uzbek that reflect varied emotional experiences. Comparative studies reveal significant differences in how crying is expressed across languages, while pragmatic functions underscore its role in social cohesion. Lastly, the article illustrates the motif of crying in Uzbek literature, reinforcing its cultural significance as a means of emotional expression.
TRUFAS, a wavelet based algorithm for the rapid detection of planetary transits
Creators: name: Regulo, C.
name: Almenara, M.
name: Alonso, R.
name: Deeg, H. J.
name: Cortes, T. Roca
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: We describe a fast, robust and automatic detection algorithm, TRUFAS, and apply it to data that are being expected from the CoRoT mission. Methods: The procedure proposed for the detection of planetary transits in light curves works in two steps: 1) a continuous wavelet transformation of the detrended light curve with posterior selection of the optimum scale for transit detection, and 2) a period search in that selected wavelet transformation. The detrending of the light curves are based on Fourier filtering or a discrete wavelet transformation. TRUFAS requires the presence of at least 3 transit events in the data. Results: The proposed algorithm is shown to identify reliably and quickly the transits that had been included in a standard set of 999 light curves that simulate CoRoT data. Variations in the pre-processing of the light curves and in the selection of the scale of the wavelet transform have only little effect on TRUFAS' results. Conclusions: TRUFAS is a robust and quick transit detection algorithm, especially well suited for the analysis of very large volumes of data from space or ground-based experiments, with long enough durations for the target-planets to produce multiple transit events.
description: 9 pages, 10 figures, accepted by A&A
The largest component in a subcritical random graph with a power law degree distribution
Creators: name: Janson, Svante
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05, 05C80 (Primary)

description: It is shown that in a subcritical random graph with given vertex degrees satisfying a power law degree distribution with exponent $γ>3$, the largest component is of order $n^{1/(γ-1)}$. More precisely, the order of the largest component is approximatively given by a simple constant times the largest vertex degree. These results are extended to several other random graph models with power law degree distributions. This proves a conjecture by Durrett.
description: Published in at http://dx.doi.org/10.1214/07-AAP490 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Point Defects in Two-Dimensional γ-Phosphorus Carbide
Creators: name: Kistanov, Andrey A.
name: Nikitenko, Vladimir R.
name: Prezhdo, Oleg V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Defects are inevitably present in two-dimensional (2D) materials and usually govern their various properties. Here a comprehensive density functional theory-based investigation of 7 kinds of point defects in a recently produced γ allotrope of 2D phosphorus carbide (γ-PC) is conducted. The defects, such as antisites, single C or P, and double C and P and C and C vacancies, are found to be stable in γ-PC, while the Stone-Wales defect is not presented in γ-PC due to its transition metal dichalcogenides-like structure. The formation energies, stability, and surface density of the considered defect species as well as their influence on the electronic structure of γ-PC is systematically identified. The formation of point defects in γ-PC is found to be less energetically favourable then in graphene, phosphorene, and MoS2. Meanwhile, defects can significantly modulate the electronic structure of γ-PC by inducing hole/electron doping. The predicted scanning tunneling microscopy images suggest that most of the point defects are easy to distinguish from each other and that they can be easily recognized in experiments.
Unparticle Physics And Gauge Coupling Unification
Creators: name: Gogoladze, Ilia
name: Okada, Nobuchika
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Unparticle physics from a hidden conformal sector can alter the evolution of the Standard Model (SM) gauge couplings via TeV scale threshold corrections. We discuss how this may lead to gauge coupling unification at M_{GUT}\approx 2 \times 10^{15} GeV -- 5 \times 10^{17} GeV without introducing new particles in the SM sector.
description: 8 pages, 4 figures
The golden ratio prediction for the solar neutrino mixing
Creators: name: Kajiyama, Yuji
name: Raidal, Martti
name: Strumia, Alessandro
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a simple texture that predicts the cotangent of the solar neutrino mixing angle to be equal to the golden ratio. This prediction is 1.4 standard deviations below the present best-fit value and final SNO and KamLAND data could discriminate it from tri-bi-maximal mixing. The neutrino mass matrix is invariant under a Z_2 x Z'_2 symmetry: that geometrically is a reflection along the diagonal of the golden rectangle. Assuming an analogous structure in the quark sector suggests a golden prediction for the Cabibbo angle, theta_C = pi/4- theta_12 = 13.3 degree, up to uncertainties comparable to V_{ub}.
description: 5 pages. Final version, to appear on PRD
A characterization of fine words over a finite alphabet
Creators: name: Glen, Amy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15

description: To any infinite word w over a finite alphabet A we can associate two infinite words min(w) and max(w) such that any prefix of min(w) (resp. max(w)) is the lexicographically smallest (resp. greatest) amongst the factors of w of the same length. We say that an infinite word w over A is "fine" if there exists an infinite word u such that, for any lexicographic order, min(w) = au where a = min(A). In this paper, we characterize fine words; specifically, we prove that an infinite word w is fine if and only if w is either a "strict episturmian word" or a strict "skew episturmian word''. This characterization generalizes a recent result of G. Pirillo, who proved that a fine word over a 2-letter alphabet is either an (aperiodic) Sturmian word, or an ultimately periodic (but not periodic) infinite word, all of whose factors are (finite) Sturmian.
description: 16 pages; presented at the conference on "Combinatorics, Automata and Number Theory", Liege, Belgium, May 8-19, 2006 (to appear in a special issue of Theoretical Computer Science)
XAMG: A library for solving linear systems with multiple right-hand side vectors
Creators: name: Krasnopolsky, Boris
name: Medvedev, Alexey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Software (cs.MS)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper presents the XAMG library for solving large sparse systems of linear algebraic equations with multiple right-hand side vectors. The library specializes but is not limited to the solution of linear systems obtained from the discretization of elliptic differential equations. A corresponding set of numerical methods includes Krylov subspace, algebraic multigrid, Jacobi, Gauss-Seidel, and Chebyshev iterative methods. The parallelization is implemented with MPI+POSIX shared memory hybrid programming model, which introduces a three-level hierarchical decomposition using the corresponding per-level synchronization and communication primitives. The code contains a number of optimizations, including the multilevel data segmentation, compression of indices, mixed-precision floating-point calculations, vector status flags, and others. The XAMG library uses the program code of the well-known hypre library to construct the multigrid matrix hierarchy. The XAMG's own implementation for the solve phase of the iterative methods provides up to a twofold speedup compared to hypre for the tests performed. Additionally, XAMG provides extended functionality to solve systems with multiple right-hand side vectors.
Peculiar atomic bond nature in platinum monatomic chains
Creators: name: Zhang, Jiaqi
name: Ishizuka, Keisuke
name: Tomitori, Masahiko
name: Arai, Toyoko
name: Hongo, Kenta
name: Maezono, Ryo
name: Tosatti, Erio
name: Oshima, Yoshifumi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Metal atomic chains have been reported to change their electronic or magnetic properties by slight mechanical stimulus. However, the mechanical response has been veiled because of lack of information on the bond nature. Here, we clarify the bond nature in platinum (Pt) monatomic chains by our developed in-situ transmission electron microscope method. The stiffness is measured with sub N/m precision by quartz length-extension resonator. The bond stiffnesses at the middle of the chain and at the connecting to the base are estimated to be 25 and 23 N/m, respectively, which are higher than the bulk counterpart. Interestingly, the bond length of 0.25 nm is found to be elastically stretched to 0.31 nm, corresponding to 24% in strain. Such peculiar bond nature could be explained by a novel concept of "string tension". This study is a milestone that will significantly change the way we think about atomic bonds in one-dimensional substance.
description: 20pages, 4 figures
The Pseudospectrum of Systems of Semiclassical Operators
Creators: name: Dencker, Nils
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35S05 (Primary) 35P05, 47G30, 58J40 (Secondary)

description: The pseudospectra (or spectral instability) of non-selfadjoint operators is a topic of current interest in applied mathematics. In fact, for non-selfadjoint operators the resolvent could be very large outside the spectrum, making the numerical computation of the complex eigenvalues very hard. This has importance, for example, in quantum mechanics, random matrix theory and fluid dynamics. The occurence of pseudospectra for non-selfadjoint semiclassical differential operators is due to the existence of quasimodes, i.e., approximate local solutions to the eigenvalue problem. For scalar operators, the quasimodes appear since the bracket condition is not satisfied for topological reasons, see the paper by Dencker, Sjostrand and Zworski in Comm. Pure Appl. Math. 57 (2004), 384-415. In this paper we shall investigate how these result can be generalized to square systems of semiclassical differential operators of principal type. These are the systems whose principal symbol vanishes of first order on its kernel. We show that the resolvent blows up as in the scalar case, except in a nowhere dense set of degenerate values. We also define quasi-symmetrizable systems and systems of subelliptic type for which we prove estimates on the resolvent.
description: Introduced the notion of quasi-symmetric systems and proved invariance properties for these systems. Changed the definition of the approximation property in Definition 5.10. Skipped erroneous Remark 3.5 and strengthened Proposition 3.7. Corrected an error in the proof of Proposition 6.1, added Lemma A.4 and some examples. The paper has 57 pages
The Last Scientific Revolution
Creators: name: Kirilyuk, Andrei P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Critically growing problems of fundamental science organisation and content are analysed with examples from physics and emerging interdisciplinary fields. Their origin is specified and new science structure (organisation and content) is proposed as a unified solution.
description: 20 pages, 94 refs
How the climate change has an adverse effect on the supply-chain management in the world
Creators: name: KARTHIK LAKSHMI NARAYAN
Publisher: name: figshare
Year: 2021
Subjects: subject: 159999 Commerce, Management, Tourism and Services not elsewhere classified
subject: FOS: Economics and business

description: In this report we are discussing on how the climate changes around the world has an impact on the business (organization and industries) through supply-chain management. In the modern-era of business we can see how companies or business are progressively challenged for achievement on the climate change. This study deliberates significance of assessing ecological sustainability of fruits and vegetable manufacture segment in imminent environment change scenarios.
Aimed at the existing production situation, life cycle conservation footprints of agricultural products supply chain are debated bearing in mind the impacts of: agro –weather conditions, manufacture arrangements, resource contributions, post-yield managements to the produces' income and quality. Potential risks of climate change to the sector are discussed in the context of elevated global temperature and carbon dioxide level, ozone depletion and changes in precipitation patterns.
Characterizations of finite and infinite episturmian words via lexicographic orderings
Creators: name: Glen, Amy
name: Justin, Jacques
name: Pirillo, Giuseppe
Publisher: name: arXiv
Year: 2007
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15

description: In this paper, we characterize by lexicographic order all finite Sturmian and episturmian words, i.e., all (finite) factors of such infinite words. Consequently, we obtain a characterization of infinite episturmian words in a "wide sense" (episturmian and episkew infinite words). That is, we characterize the set of all infinite words whose factors are (finite) episturmian. Similarly, we characterize by lexicographic order all balanced infinite words over a 2-letter alphabet; in other words, all Sturmian and skew infinite words, the factors of which are (finite) Sturmian.
description: 18 pages; to appear in the European Journal of Combinatorics
Multiwavelength Observations of the RV Tauri Variable System U Monocerotis: Long-Term Variability Phenomena That Can Be Explained by Binary Interactions with a Circumbinary Disk
Creators: name: Vega, Laura D.
name: Stassun, Keivan G.
name: Montez, Rodolfo
name: Kamiński, Tomasz
name: Sabin, Laurence
name: Schlegel, Eric M.
name: Vlemmings, Wouter H. T.
name: Kastner, Joel H.
name: Ramstedt, Sofia
name: Boyd, Patricia T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present X-ray through submillimeter observations of the classical RV Tauri (RVb-type) variable U Mon, a post-AGB binary with a circumbinary disk (CBD). Our SMA observations indicate a CBD diameter of $\lesssim$550 au. Our XMM-Newton observations make U Mon the first RV Tauri variable detected in X-rays. The X-ray emission is characteristic of a hot plasma ($\sim$10 MK), with L$_{X}=5\times10^{30}{\rm erg}~{\rm s}^{-1}$, and we consider its possible origin from U Mon, its companion, and/or binary system interactions. Combining DASCH and AAVSO data, we extend the time-series photometric baseline back to the late 1880s and find evidence that U Mon has secular changes that appear to recur on a timescale of $\sim$60 yr, possibly caused by a feature in the CBD. From literature radial velocities we find that the binary companion is a $\sim$2 M$_{\odot}$ A-type main-sequence star. The orientation of the binary's orbit lies along our line of sight ($ω= 95^\circ$), such that apastron corresponds to photometric RVb minima, consistent with the post-AGB star becoming obscured by the near side of the CBD. In addition, we find the size of the inner-CBD hole ($\sim$4.5-9 au) to be comparable to the binary separation, implying that one or both stars may interact with the CBD at apastron. The obscuration of the post-AGB star implicates the companion as the likely source of the enhanced H$α$ observed at RVb minima and of the X-ray emission that may arise from accreted material.
description: 19 pages, 9 figures, 4 tables, in aastex62 format, published in ApJ, NASA news feature available upon request. Light curve in Figure 2 available as "Data behind the Figure"
THE BASICS OF CONCLUDING CONTRACTS FOR THE PROVISION OF TELECOMMUNICATIONS SERVICES
Creators: name: Xursanov, Rustam
Publisher: name: Zenodo
Year: 2023

description: This article provides a comprehensive overview of the key aspects of concluding contracts for the provision of telecommunications services. The author covers various important topics, such as the legal framework governing the telecommunications industry, the essential elements of a telecommunications services contract, and the rights and obligations of both parties involved in the contract. The article is well-researched and provides practical insights that can be useful to businesses and individuals who are looking to enter into contracts for the provision of telecommunications services. Overall, this is a valuable resource for anyone seeking to gain a better understanding of the legal and practical considerations involved in concluding telecommunications services contracts.
The Brownian Map
Creators: name: Baez, John C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: The "Brownian map" is a fundamental object in mathematics, in some sense a 2-dimensional analogue of Brownian motion. Here we briefly explain this object and a bit of its history.
description: 3 pages, one figure by Thomas Budzinski
Forming Ensembles at Runtime: A Machine Learning Approach
Creators: name: Bureš, Tomáš
name: Gerostathopoulos, Ilias
name: Hnětynka, Petr
name: Pacovský, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Smart system applications (SSAs) built on top of cyber-physical and socio-technical systems are increasingly composed of components that can work both autonomously and by cooperating with each other. Cooperating robots, fleets of cars and fleets of drones, emergency coordination systems are examples of SSAs. One approach to enable cooperation of SSAs is to form dynamic cooperation groups-ensembles-between components at runtime. Ensembles can be formed based on predefined rules that determine which components should be part of an ensemble based on their current state and the state of the environment (e.g., "group together 3 robots that are closer to the obstacle, their battery is sufficient and they would not be better used in another ensemble"). This is a computationally hard problem since all components are potential members of all possible ensembles at runtime. In our experience working with ensembles in several case studies the past years, using constraint programming to decide which ensembles should be formed does not scale for more than a limited number of components and ensembles. Also, the strict formulation in terms of hard/soft constraints does not easily permit for runtime self-adaptation via learning. This poses a serious limitation to the use of ensembles in large-scale and partially uncertain SSAs. To tackle this problem, in this paper we propose to recast the ensemble formation problem as a classification problem and use machine learning to efficiently form ensembles at scale.
Dynamical stability and electronic structure of \b{eta}-phosphorus carbide nano-wires
Creators: name: Shcherbinin, S. A.
name: Ustiuzhanina, S. V.
name: Kistanov, A. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, \b{eta}-phosphorus carbide 1D nano-wires (PCNWs) are investigated in the framework of density functional theory. The dynamical stability of the considered \b{eta}-PCNWs at 300 K is verified using ab initio molecular dynamics calculations. According to the results on the band structure calculations, \b{eta}-PCNWs can be semiconductors, semimetals or metals depending on their size and form. Thus, owning to their unique shape and high tunability of electronic properties \b{eta}-PCNWs may be used in optical and photovoltaic nanodevices.
Driven waves in a two-fluid plasma
Creators: name: Roberge, W. G.
name: Ciolek, Glenn E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the physics of wave propagation in a weakly ionised plasma, as it applies to the formation of multifluid, MHD shock waves. We model the plasma as separate charged and neutral fluids which are coupled by ion-neutral friction. At times much less than the ion-neutral drag time, the fluids are decoupled and so evolve independently. At later times, the evolution is determined by the large inertial mismatch between the charged and neutral particles. The neutral flow continues to evolve independently; the charged flow is driven by and slaved to the neutral flow by friction. We calculate this driven flow analytically by considering the special but realistic case where the charged fluid obeys linearized equations of motion. We carry out an extensive analysis of linear, driven, MHD waves. The physics of driven MHD waves is embodied in certain Green functions which describe wave propagation on short time scales, ambipolar diffusion on long time scales, and transitional behavior at intermediate times. By way of illustration, we give an approximate solution for the formation of a multifluid shock during the collision of two identical interstellar clouds. The collision produces forward- and reverse J shocks in the neutral fluid and a transient in the charged fluid. The latter rapidly evolves into a pair of magnetic precursors on the J shocks, wherein the ions undergo force free motion and the magnetic field grows monotonically with time. The flow appears to be self similar at the time when linear analysis ceases to be valid.
description: 18 pages including 24 figures, accepted by MNRAS
Renormalization of NN Interaction with Relativistic Chiral Two Pion Exchange
Creators: name: Higa, R.
name: Valderrama, M. Pavon
name: Arriola, E. Ruiz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The renormalization of the NN interaction with the Chiral Two Pion Exchange Potential computed using relativistic baryon chiral perturbation theory is considered. The short distance singularity reduces the number of counter-terms to about a half as those in the heavy-baryon expansion. Phase shifts and deuteron properties are evaluated and a general overall agreement is observed.
description: 13 pages, 4 figures. Reference included. Typos corrected. Appendix and discussion added
Pauli Paramagnetic Effects on Vortices in Superconducting TmNi2B2C
Creators: name: DeBeer-Schmitt, L.
name: Eskildsen, M. R.
name: Ichioka, M.
name: Machida, K.
name: Jenkins, N.
name: Dewhurst, C. D.
name: Abrahamsen, A. B.
name: Bud'ko, S. L.
name: Canfield, P. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic field distribution around the vortices in TmNi2B2C in the paramagnetic phase was studied experimentally as well as theoretically. The vortex form factor, measured by small-angle neutron scattering, is found to be field independent up to 0.6 Hc2 followed by a sharp decrease at higher fields. The data are fitted well by solutions to the Eilenberger equations when paramagnetic effects due to the exchange interaction with the localized 4f Tm moments are included. The induced paramagnetic moments around the vortex cores act to maintain the field contrast probed by the form factor.
description: 4 pages, 4 figures
Agroforestry innovations in livestock breeding - Agrár-erdészeti innovációk az állattenyésztésben, természeti és kulturális örökségünk megőrzésében: fás legelők és erdei legeltetés
Creators: name: Varga, Anna
name: Molnár, Zsolt
Publisher: name: Zenodo
Year: 2017
Subjects: wood pasture
agroforestry
livestock
fás legelő
erdei legeltetés
állattenyésztés

description: Az előadás bemutatja a fás legelők és erdei legeltetés múltját, kulturális örökségét, jelenlegi helyzetét és jövőbeni lehetőségeit.
Power Curve Verification in complex terrain using multi- range nacelle lidars
Creators: name: Wagner, Rozenn
name: Borraccino, Antoine
name: Vignaroli, Andrea
name: Forsting, Alexander RM
Publisher: name: Zenodo
Year: 2019
Subjects: wind turbine, power curve, nacelle lidar, measurement, complex terrain, induction

description: Power curve verification in complex terrain has always been a challenge. The current IEC standard requires a preliminary site calibration using two met masts - which can be difficult to carry out, expensive and gives a large unertainty to the measured power curve. In the UniTTe project we have developed and tested an alternative procedure using a nacelle mounted lidar. By measuring closer to the rotor, the influence of the terrain on the inlfow can be neglected whereas the wind speed slow down due to the induction is corrected for using a simple analytical model. In this presentation, results of 3 measurement campaigns are shown ( 1 in flat terrain and 2 in complex terrain) demonstrating the potential of this approach for power curve verification without site calibration.
Hadronic Dijet Imbalance and Transverse-Momentum Dependent Parton Distributions
Creators: name: Vogelsang, Werner
name: Yuan, Feng
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare several recent theoretical studies of the single transverse spin asymmetry in dijet-correlations at hadron colliders. We show that the results of these studies are all consistent. To establish this, we investigate in particular the two-gluon exchange contributions to the relevant initial and final state interactions in the context of a simplifying model. Overall, the results confirm that the dijet imbalance obeys at best a non-standard or "generalized" transverse-momentum-dependent factorization.
description: 13 pages, 3 figures
Multi-Matrix Verifiable Computation
Creators: name: He, Yan
name: Zhang, Liang Feng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The problem of securely outsourcing computation to cloud servers has attracted a large amount of attention in recent years. The verifiable computation of Gennaro, Gentry, Parno (Crypto'10) allows a client to verify the server's computation of a function with substantially less time than performing the outsourced computation from scratch. In a multi-function model (Parno, Raykova, Vaikuntanathan; TCC'12) of verifiable computation, the process of encoding function and the process of preparing input are decoupled such that any client can freely submit a computation request on its input, without having to generate an encoding of the function in advance. In this paper, we propose a multi-matrix verifiable computation scheme that allows the secure outsourcing of the matrix functions over a finite field. Our scheme is outsourceable. When it is used to outsource $m$ linear functions, the scheme is roughly $m$ times faster and has less communication cost than the previously best known scheme by Fiore and Gennaro (CCS'12), both in the client-side computation and in the server-side computation. We also show the cost saving with detailed implementations.
description: Cluster Computing-The Journal of Networks, Software Tools and Applications
Echoes from the companion star in Sco X-1
Creators: name: Muñoz-Darias, T.
name: Martinez-Pais, I. G.
name: Casares, J.
name: Dhillon, V. S.
name: Marsh, T. R.
name: Cornelisse, R.
name: Steeghs, D.
name: Charles, P. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present simultaneous X-ray (RXTE) and optical (ULTRACAM) narrow band (Bowen blend/HeII and nearby continuum) observations of Sco X-1 at 2-10 Hz time resolution. We find that the Bowen/HeII emission lags the X-ray light-curves with a light travel time of ~11-16s which is consistent with reprocessing in the companion star. The echo from the donor is detected at orbital phase ~0.5 when Sco X-1 is at the top of the Flaring Branch. Evidence of echoes is also seen at the bottom of the Flaring Branch but with time-lags of 5-10s which are consistent with reprocessing in an accretion disc with a radial temperature profile. We discuss the implication of our results for the orbital parameters of Sco X-1.
description: Accepted for publication in MNRAS
ELIXIR - Biodiversity, Food Security and Pathogens - Strategy
Creators: name: Chua, Physilia
name: Heil, Katharina F
name: Maccallum, Peter
name: Manousaki, Tereza
name: Pommier, Cyril
name: Waterhouse, Robert
name: ELIXIR BFSP priority area writing team
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Food Security
Pathogens
Research Infrastructure
Strategy

description: This document describes ELIXIR’s Strategy for developing the Biodiversity, Food Security and Pathogens (BFSP) Priority Area within the Science Tier of the ELIXIR 2024-28 Programme. It has been developed by the BFSP Priority Area co-leads, with support from the ELIXIR Hub, and with input and feedback from ELIXIR members across Nodes, Communities, Focus Groups, and Platforms.

The Strategy outlines relevant background information on the importance of BFSP-related research in overcoming societal challenges with a focus on life science data mobilisation and integration activities. Key challenges are summarised, including data brokering services, data interoperability solutions, and analysis tools and services for data exploitation. The Strategy also sets out the scope of BFSP-related activities considering ELIXIR’s role as a Research Infrastructure (RI) for life sciences data and highlights existing and future opportunities in the context of complementary and interconnected national, regional, and global activities and other RIs.

The overarching aims of the BFSP Priority Area are described by defining a vision and mission, addressing the key challenges and contributing to safeguarding planetary health and human wellbeing. The guiding goals are elaborated through objectives centred on federation, FAIR data, analysis, standards, and training, designed to build on ELIXIR’s existing activities and expertise supporting a distributed infrastructure for biological data. Finally, the Strategy summarises the practical implementation of the work plan designed to deliver advances towards sustainable growth in the BFSP domain.
Don't throw efficiency out with the bathwater: A reply to Jeffery and Verheijen (2020)
Creators: name: Bartkowski, Bartosz
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: In this paper, I reply to the recent article by Jeffery and Verheijen (2020) 'A new soil health policy paradigm: Pay for practice not performance!'. While expressing support for their call for a more pronounced role of soil protection in agri-environmental policy, I critically discuss the two main elements of their specific proposal: its emphasis of the concept of soil health and the recommendation to use action-based payments as the main policy instrument. I argue for using soil functions as a more established concept (and thus more adequate for policy purposes), which is also informationally richer than soil health. Furthermore, I provide a more differentiated discussion of the relative advantages and disadvantages of result-based and action-based payments, while addressing the specific criticisms towards the former that Jeffery and Verheijen voice. Also, I suggest an alternative approach (a hybrid model-based scheme) that addresses the limitations of both Jeffery and Verheijen's own proposal and the valid criticisms they direct at result-based payments.
Investigating society's educational debts due to racism and sexism in student attitudes about physics using quantitative critical race theory
Creators: name: Nissen, Jayson
name: Horses, Ian Her Many
name: Van Dusen, Ben
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The American Physical Society calls on its members to improve the diversity of physics by supporting an inclusive culture that encourages women and Black, Indigenous, and people of color to become physicists. In the current educational system, it is unlikely for a student to become a physicist if they do not share the same attitudes about what it means to learn and do physics as those held by most professional physicists. Evidence shows college physics courses and degree programs do not support students in developing these attitudes. Rather physics education filters out students who do not enter college physics courses with these attitudes. To better understand the role of attitudes in the lack of diversity in physics, we investigated the intersecting relationships between racism and sexism in inequities in student attitudes about learning and doing physics using a critical quantitative framework. The analyses used hierarchical linear models to examine students attitudes as measured by the Colorado learning attitudes about science survey. The data came from the LASSO database and included 2170 students in 46 calculus-based mechanics courses and 2503 students in 49 algebra-based mechanics courses taught at 18 institutions. Like prior studies, we found that attitudes either did not change or slightly decreased for most groups. Results identified large differences across intersecting race and gender groups representing educational debts society owes these students. White students, particularly White men in calculus-based courses, tended to have more expert-like attitudes than any other group of students. Instruction that addresses society's educational debts can help move physics toward an inclusive culture supportive of diverse students and professionals.
description: 23 pages, 6 figures. Physical Review Physics Education Research (2021)
Inflection point as a manifestation of tricritical point on the dynamic phase boundary in Ising meanfield dynamics
Creators: name: Acharyya, Muktish
name: Acharyya, Ajanta Bhowal
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We studied the dynamical phase transition in kinetic Ising ferromagnet driven by oscillating magnetic field in meanfield approximation. The meanfield differential equation was solved by sixth order Runge-Kutta-Felberg method. We calculated the transition temperature as a function of amplitude and frequency of the oscillating field. This was plotted against field amplitude taking frequency as a parameter. As frequency increases the phase boundary is observed to become inflated. The phase boundary shows an inflection point which separates the nature of the transition. On the dynamic phase boundary a tricritical point (TCP) was found, which separates the nature (continuous/discontinuous) of the dynamic transition across the phase boundary. The inflection point is identified as the TCP and hence a simpler method of determining the position of TCP was found. TCP was observed to shift towards high field for higher frequency. As frequency decreases the dynamic phase boundary is observe to shrink. In the zero frequency limit this boundary shows a tendency to merge to the temperature variation of the coercive field.
description: Plain Latex 12 pages. Communications in Computational Physics (2007) (in press)
Development of spin fluctuations under the presence of $d$-wave bond order in cuprate superconductors
Creators: name: Ando, Satoshi
name: Yamakawa, Youichi
name: Onari, Seiichiro
name: Kontani, Hiroshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In cuprate superconductors, superconductivity appears below the CDW transition temperature $T_{CDW}$. However, many-body electronic states under the CDW order are still far from understood. Here, we study the development of the spin fluctuations under the presence of $d$-wave bond order (BO) with wavevector $q=(π/2,0),(0,π/2)$, which is derived from the paramagnon interference mechanism in recent theoretical studies. Based on the $4 \times 1$ and $4 \times 4$ cluster Hubbard models, the feedback effects between spin susceptibility and self-energy are calculated self-consistently by using the fluctuation-exchange (FLEX) approximation. It is found that the $d$-wave BO leads to a sizable suppression of the nuclear magnetic relaxation rate $1/T_1$. In contrast, the reduction in $T_c$ is small, since the static susceptibility $χ^s(Q_s)$ is affected by the BO just slightly. It is verified that the $d$-wave BO scenario is consistent with the experimental electronic properties below $T_{CDW}$.
description: 8 pages,7 figures, to be published in J. Phys. Soc. Jpn
Research and education of wood pasture and ancient trees - Fáslegelők és ősfák kutatása és oktatása általános iskolai keretek között: A bogyiszlói Kasztó-projekt
Creators: name: Varga, Anna
name: Végh, Borbála
name: Boda, Zoltán
Publisher: name: Zenodo
Year: 2018
Subjects: wood pasture
education

description: Bogyiszlón a helyi általános iskola tanári karával és diákjaival, valamint helyi lakosok segítségével a fás legelőkről, őstölgyekről és pásztorvilágról szóló oktatási és ismeretterjesztési programot fejlesztettek. A poszter bemutatja az oktatási anyag kialakításának folyamatát és annak integrálását az iskolai tantárgyakba.