cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Active Galactic Nuclei as potential Sources of Ultra-High Energy Cosmic Rays
Creators: name: Rieger, Frank M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Active Galactic Nuclei (AGNs) and their relativistic jets belong to the most promising class of ultra-high-energy cosmic ray (UHECR) accelerators. This compact review summarises basic experimental findings by recent instruments, and discusses possible interpretations and astrophysical constraints on source energetics. Particular attention is given to potential sites and mechanisms of UHECR acceleration in AGNs, including gap-type particle acceleration close to the black hole, as well as first-order Fermi acceleration at trans-relativistic shocks and stochastic shear particle acceleration in large-scale jets. It is argued that the last two represent the most promising mechanisms given our current understanding, and that nearby FR~I type radio galaxies provide a suitable environment for UHECR acceleration.
description: Compact invited review paper; Universe, Special Issue Black Holes and Relativistic Jets; 30 pages, 18 figures
Pose-aware Attention Network for Flexible Motion Retargeting by Body Part
Creators: name: Hu, Lei
name: Zhang, Zihao
name: Zhong, Chongyang
name: Jiang, Boyuan
name: Xia, Shihong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Graphics (cs.GR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.3.0; I.2.0
subject: 68U05, 68T40

description: Motion retargeting is a fundamental problem in computer graphics and computer vision. Existing approaches usually have many strict requirements, such as the source-target skeletons needing to have the same number of joints or share the same topology. To tackle this problem, we note that skeletons with different structure may have some common body parts despite the differences in joint numbers. Following this observation, we propose a novel, flexible motion retargeting framework. The key idea of our method is to regard the body part as the basic retargeting unit rather than directly retargeting the whole body motion. To enhance the spatial modeling capability of the motion encoder, we introduce a pose-aware attention network (PAN) in the motion encoding phase. The PAN is pose-aware since it can dynamically predict the joint weights within each body part based on the input pose, and then construct a shared latent space for each body part by feature pooling. Extensive experiments show that our approach can generate better motion retargeting results both qualitatively and quantitatively than state-of-the-art methods. Moreover, we also show that our framework can generate reasonable results even for a more challenging retargeting scenario, like retargeting between bipedal and quadrupedal skeletons because of the body part retargeting strategy and PAN. Our code is publicly available.
description: 17 pages, 12 figures. IEEE Transactions on Visualization and Computer Graphics, (2023)
A fast current-driven instability in relativistic collisionless shocks
Creators: name: Lemoine, Martin
name: Pelletier, Guy
name: Gremillet, Laurent
name: Plotnikov, Illya
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We report here on a fast current-driven instability at relativistic collisionless shocks, triggered by the perpendicular current carried by the supra-thermal particles as they gyrate around the background magnetic field in the shock precursor. We show that this instability grows faster than any other instability studied so far in this context, and we argue that it is likely to shape the physics of the shock and of particle acceleration in a broad parameter range.
description: 6 pages, 5 figures -- version to appear in EPL
Virtuality Distributions in Application to $γγ^* \to π^0$ Transition Form Factor at Handbag Level
Creators: name: Radyushkin, A. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We outline basics of a new approach to transverse momentum dependence in hard processes. As an illustration, we consider hard exclusive transition process $γ^* γ\to π^0$ at the handbag level. Our starting point is coordinate representation for matrix elements of operators (in the simplest case, bilocal ${\cal O}(0,z)$) describing a hadron with momentum $p$. Treated as functions of $(pz)$ and $z^2$, they are parametrized through virtuality distribution amplitudes (VDA) $Φ(x, σ)$, with $x$ being Fourier-conjugate to $(pz)$ and $σ$ Laplace-conjugate to $z^2$. For intervals with $z^+=0$, we introduce the transverse momentum distribution amplitude (TMDA) $Ψ(x, k_\perp)$, and write it in terms of VDA $Φ(x, σ)$. The results of covariant calculations, written in terms of $Φ(x, σ)$ are converted into expressions involving $Ψ(x, k_\perp)$. Starting with scalar toy models, we extend the analysis onto the case of spin-1/2 quarks and QCD. We propose simple models for soft VDAs/TMDAs, and use them for comparison of handbag results with experimental (BaBar and BELLE) data on the pion transition form factor. We also discuss how one can generate high-$k_\perp$ tails from primordial soft distributions.
description: 9 pages, 8 figures; Bibliography fixed
Metadata Quality Evaluation in Cultural Heritage Domain
Creators: name: Lorenzini, Matteo
Publisher: name: Universit� degli studi di Trento
Year: 2022

description: Metadata are fundamental for the indexing, browsing, and retrieval of cultural heritage resources in digital repositories. Since the manual control of metadata quality in digital repositories may not be feasible, especially when working with large collections, this Ph.D. thesis focuses specifically on the problem of automatic metadata quality assessment. Taking as the main reference the Metadata Quality Framework developed by Thomas Bruce and Diane Hilmann, we propose to evaluate metadata information according to three aspects. The first is metadata Completeness, approached as a statistical analysis. We compute the ratio of the filled elements with respect to the metadata schema taking into account its structure as well as the specific topic of a collection. The second is metadata Accuracy of the textual description of a given cultural heritage object, approached as a binary classification problem. We determine whether the field contains a high-quality or low-quality description, measured as the compliance of the textual content with the description rules from the guidelines used to implement metadata information. The last aspect concerns metadata Coherence, where we investigate the feasibility to use high-quality metadata at source while implementing metadata information. We assess the metadata Coherence of the subject element recommending the three most likely subjects of the resource analyzing the iconography of the resource. Applying this methodology to the Italian digital library ``Cultura Italia'', we noticed overall that it is indeed possible to automatically evaluate metadata quality. However, despite the promising results we obtained, to have a more detailed picture about automatic metadata quality evaluation, our methods should be also tested on a wider range of digital repositories.
О РОЛИ ГОСУДАРСТВА В СОВЕРШЕНСТВОВАНИИ ОРГАНИЗАЦИИ ИСПОЛЬЗОВАНИЯ ЗЕМЕЛЬ СЕЛЬСКОХОЗЯЙСТВЕННОГО НАЗНАЧЕНИЯ
Creators: name: ПАПАСКИРИ ТИМУР ВАЛИКОВИЧ
name: СЕМОЧКИН ВИТАЛИЙ НИКОЛАЕВИЧ
name: БАКАНОВА ЖАННА НИКОЛАЕВНА
name: АФАНАСЬЕВ ПЕТР ВЛАДИМИРОВИЧ
name: МАЛЕВА МАРИЯ ЛЕОНИДОВНА
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: ЗЕМЕЛЬНАЯ ПОЛИТИКА
ЗЕМЕЛЬНЫЕ РЕСУРСЫ
ЗЕМЛЕУСТРОЙСТВО
ЗАКОНОДАТЕЛЬНОЕ ОБЕСПЕЧЕНИЕ
ЗЕМЛЕУСТРОИТЕЛЬНОЕ ОБЕСПЕЧЕНИЕ
ЗАКОНОПРОЕКТ
СЕЛЬСКОХОЗЯЙСТВЕННЫЕ ЗЕМЛИ
ЗЕМЕЛЬНЫЕ ОТНОШЕНИЯ
УПРАВЛЕНИЕ ЗЕМЕЛЬНЫМИ РЕСУРСАМИ
LAND POLICY
LAND RESOURCES
LAND MANAGEMENT
LEGISLATIVE SUPPORT
LAND MANAGEMENT SUPPORT
DRAFT LAW
AGRICULTURAL LAND
LAND RELATIONS

description: В статье предлагаются основные направления формирования государственной политики в области организации использования земель сельскохозяйственного назначения. Особое место уделено вопросам законодательного обеспечения развития земельно-имущественных отношений, в связи с обсуждением профессиональным сообществом законопроекта «О землеустройства».
Liberal-egalitarianism as a fair joint commitment: Insights from normative agreement and compliance in an experimental setting
Creators: name: Marcon, Laura
Publisher: name: Universit� degli studi di Trento
Year: 2020

description: What does it mean to act morally? This research is part of normative ethics, which studies the formation of moral judgments and whether such judgments are able to motivate people to act in accordance with them. The gap between the dimension of the common good and the private life of each citizen has led to questioning whether there are moral norms whose content may constitute, per se, a sufficient reason for action. More specifically, when a norm, collectively chosen and shared, succeeds in self-imposing without any intervention of external authority.The interest for this theme arises from the urgency of defining conditions under which a group of interdependent agents, can organize themselves to obtain long-term collective benefits, find in collective action, a motivation, a commitment and a responsibility that decrease the temptation of opportunistic behaviour in distribution contexts. The main goal of this inquiry is trying to propose a normative solution of a problem of distributive justice in the following terms of: how can a norm generate a motivational causal force that induces compliance with what it asserts, in contexts where selfish rather than prosocial behaviour would be expected? This problem, approached from different perspectives, economic, psychological, sociological, also requires a philosophical reflection. Within this framework, the issue of compliance might be reread as a motivational problem: thus, the aim of this thesis would be to try to clarify the relationship between an impartial ethical point of view and what kind of real motivations people have to act in accordance with some specific ethical principles ? namely, what reasons people have for acting in alignment with principles of distributive justice. Thus, the dissertation provides evidence from laboratory experiments that supports John Rawls?s Kantian constructivism as a method that allows subjects to evaluate different distribution criteria in production situations, making them reach an agreement on the liberal egalitarian principle. The Rawlsian method would rationally justify the ex-ante collective choice on that principle and it gives real motivations to comply ex-post, as it provides the conditions for creating a rationally justified joint commitment.
Supplemental material for Race-Neutral vs Race-Conscious: Using Algorithmic Methods to Evaluate the Reparative Potential of Housing Programs
Creators: name: So, Wonyoung
name: D'Ignazio, Catherine
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 441016
subject: Urban sociology and community studies

description: Supplemental material for Race-Neutral vs Race-Conscious: Using Algorithmic Methods to Evaluate the Reparative Potential of Housing Programs
Gardner's deformations as generators of new integrable systems
Creators: name: Kiselev, Arthemy V.
name: Krutov, Andrey O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We re-address the problem of construction of new infinite-dimensional completely integrable systems on the basis of known ones, and we reveal a working mechanism for such transitions. By splitting the problem's solution in two steps, we explain how the classical technique of Gardner's deformations facilitates -- in a regular way -- making the first, nontrivial move, in the course of which the drafts of new systems are created (often, of hydrodynamic type). The other step then amounts to higher differential order extensions of symbols in the intermediate hierarchies (e.g., by using the techniques of Dubrovin et al. [1,2] and Ferapontov et al. [3,4]).
description: Accepted to Proc. Int. workshop 'Physics and Mathematics of Nonlinear Phenomena' (June 22-29, 2013; Gallipoli (LE), Italy), 6 pages
Reversible Programming: A Case Study of Two String-Matching Algorithms
Creators: name: Glück, Robert
name: Yokoyama, Tetsuo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Programming Languages (cs.PL)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: D.3; I.1.2; F.2.2; D.1

description: String matching is a fundamental problem in algorithm. This study examines the development and construction of two reversible string-matching algorithms: a naive string-matching algorithm and the Rabin-Karp algorithm. The algorithms are used to introduce reversible computing concepts, beginning from basic reversible programming techniques to more advanced considerations about the injectivization of the polynomial hash-update function employed by the Rabin-Karp algorithm. The results are two clean input-preserving reversible algorithms that require no additional space and have the same asymptotic time complexity as their classic irreversible originals. This study aims to contribute to the body of reversible algorithms and to the discipline of reversible programming.
description: In Proceedings HCVS/VPT 2022, arXiv:2211.10675
Seeking multi-thresholds for image segmentation with Learning Automata
Creators: name: Cuevas, Erik
name: Zaldivar, Daniel
name: Perez, Marco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper explores the use of the Learning Automata (LA) algorithm to compute threshold selection for image segmentation as it is a critical preprocessing step for image analysis, pattern recognition and computer vision. LA is a heuristic method which is able to solve complex optimization problems with interesting results in parameter estimation. Despite other techniques commonly seek through the parameter map, LA explores in the probability space providing appropriate convergence properties and robustness. The segmentation task is therefore considered as an optimization problem and the LA is used to generate the image multi-threshold separation. In this approach, one 1D histogram of a given image is approximated through a Gaussian mixture model whose parameters are calculated using the LA algorithm. Each Gaussian function approximating the histogram represents a pixel class and therefore a threshold point. The method shows fast convergence avoiding the typical sensitivity to initial conditions such as the Expectation Maximization (EM) algorithm or the complex time-consuming computations commonly found in gradient methods. Experimental results demonstrate the algorithm ability to perform automatic multi-threshold selection and show interesting advantages as it is compared to other algorithms solving the same task.
description: 22 Pages. arXiv admin note: text overlap with arXiv:1405.7229
The Security Protocol Verifier ProVerif and its Horn Clause Resolution Algorithm
Creators: name: Blanchet, Bruno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: ProVerif is a widely used security protocol verifier. Internally, ProVerif uses an abstract representation of the protocol by Horn clauses and a resolution algorithm on these clauses, in order to prove security properties of the protocol or to find attacks. In this paper, we present an overview of ProVerif and discuss some specificities of its resolution algorithm, related to the particular application domain and the particular clauses that ProVerif generates. This paper is a short summary that gives pointers to publications on ProVerif in which the reader will find more details.
description: In Proceedings HCVS/VPT 2022, arXiv:2211.10675
КАДАСТРОВЫЕ ПРОБЛЕМЫ И ПУТИ ИХ РЕШЕНИЯ
Creators: name: СМИРНОВА ЖАННА ВЕНЕДИКТОВНА
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: КАДАСТРОВЫЕ ОТНОШЕНИЯ
ЗЕМЕЛЬНЫЙ КАДАСТР
ФЕДЕРАЛЬНЫЕ СЛУЖБЫ
CADASTRAL RELATIONS
LAND CADASTRE
FEDERAL SERVICES

description: В статье рассматривается одна из актуальных проблем кадастровых отношениях. Приведены примеры фондовых земельных ресурсов России. Рассмотрены проблемы, которые требуют незамедлительного решения. Обусловлены пути решения поставленных проблем.
Entropy of isolated horizon from surface term of gravitational action
Creators: name: Zhang, Cheng-Yong
name: Tian, Yu
name: Wu, Xiao-Ning
name: Zhang, Shao-Jun
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Starting from the surface term of gravitational action, one can construct a Virasoro algebra with central extension, with which the horizon entropy can be derived by using Cardy formula. This approach gives a new routine to calculate and interpret the horizon entropy. In this paper, we generalize this approach to a more general case, the isolated horizon, which contains non-stationary spacetimes beyond stationary ones. By imposing appropriate boundary conditions near the horizon, the full set of diffeomorphism is restricted to a subset where the corresponding Noether charges form a Virasoro algebra with central extension. Then by using the Cardy formula, we can derive the entropy of the isolated horizon.
description: 11 pages
Contract Strengthening through Constrained Horn Clause Verification
Creators: name: De Angelis, Emanuele
name: Fioravanti, Fabio
name: Pettorossi, Alberto
name: Proietti, Maurizio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: The functional properties of a program are often specified by providing a contract for each of its functions. A contract of a function consists of a pair of formulas, called a precondition and a postcondition, which, respectively, should hold before and after execution of that function. It might be the case that the contracts supplied by the programmer are not adequate to allow a verification system to prove program correctness, that is, to show that for every function, if the precondition holds and the execution of the function terminates, then the postcondition holds. We address this problem by providing a technique which may strengthen the postconditions of the functions, thereby improving the ability of the verifier to show program correctness. Our technique consists of four steps. First, the translation of the given program, which may manipulate algebraic data structures (ADTs), and its contracts into a set of constrained Horn clauses (CHCs) whose satisfiability implies the validity of the given contracts. Then, the derivation, via CHC transformation performed by the VeriCaT tool, of a new set of CHCs that manipulate only basic sorts (such as booleans or integers) and whose satisfiability implies the satisfiability of the original set of clauses. Then, the construction of a model, if any, of the new, derived CHCs using the CHC solver SPACER for basic sorts. Finally, the translation of that model into the formulas that suitably strengthen the postconditions of the given contracts. We will present our technique through an example consisting of a Scala program for reversing lists. Note that the Stainless verifier is not able to prove the correctness of that program when considering the given contracts, while it succeeds when considering the contracts with the strengthened postconditions constructed by applying our technique.
description: In Proceedings HCVS/VPT 2022, arXiv:2211.10675
ЭФФЕКТИВНОСТЬ ГЕОРАДИОЛОКАЦИИ В ИССЛЕДОВАНИЯХ ПОДПОВЕРХНОСТНЫХ СЛОЁВ НА ОБЪЕКТАХ СТРОИТЕЛЬСТВА ТЭК
Creators: name: НОВОХАТИН ВАСИЛИЙ ВАСИЛЬЕВИЧ
name: НОВИКОВ ЮРИЙ АЛЕКСАНДРОВИЧ
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: ГЕОРАДИОЛОКАЦИЯ
ГЕОРАДАР
РАДАРОГРАММА
ГЕОРАДИОЛОКАЦИОННОЕ ПРОФИЛИРОВАНИЕ
МЕСТОРОЖДЕНИЕ
КУСТОВАЯ ПЛОЩАДКА
НАСЫПНЫЕ ГРУНТЫ
GEO-RADAR
GPR
RADAROGRAM
GEO-RADAR PROFILING
FIELD
BUSH SITE
BULK SOILS

description: Важнейшим этапом в процессе добычи нефти и газа является подготовка месторождения к эксплуатации. При этом, геодезическим и инженерно-геологическим изысканиям, проводимым для обустройства нефтегазовых месторождений, в том числе кустовых площадок придают большое значение. Одной из проблем, тормозящих процесс геодезических и инженерно-геологических изысканий, является применение в основном методов полевой геологической съёмки. Такой метод не только занимает большой промежуток времени, но и влечёт за собой определенные неточности в изысканиях, что в дальнейшем может стать причиной неправильных расчётов инженерами тех или иных параметров для строительства объектов нефтегазового комплекса на определенной территории. На сегодняшний день имеется возможность избежать таких проблем, применяя при проведении изысканий геофизические методы, а именно, принцип георадиолокации, используя современный прибор георадар. В предлагаемой работе приводятся результаты инженерно-геодезических и геологических изысканий подповерхностных слоёв, используемые при разработке проектно-сметной документации по отсыпке основания кустовой площадки. Рассматриваются: метод полевой геологической съёмки и метод георадиолокации. Их достоинства и недостатки.
Public Engagement, Mutual Learning, and Multimodal Practices in Citizen Science: report on the activities of WP6  (COESO D.6.1.)
Creators: name: BENEI, Veronique
name: Leon-Quijano, Camilo
Publisher: name: Zenodo
Year: 2023
Subjects: Citizen science
Collective learning
Participatory engagements
Mutual Learning Exercises (MLEs)

description: Within the COESO project, WP6 "Enhancing Public Engagement in Citizen Science through transmedia writing and mutual learning" introduced project participants to transmedia approaches toward facilitating scientific and collaborative processes.
Deliverable D6.1 "Report on the activities of WP6" notably includes the documentation and outcomes of the Mutual Learning Exercises. This document first introduces the rationale behind the MLEs and the purposes for which they were designed. Thereafter are presented the various activities that were developed within the Work Package 6, focusing on the potential to propose new forms of collective learning in citizen sciences through participatory and creative activities. Lessons from these activities are drawn, offering models geared towards inclusivity of all participants.
OptiRica: Towards an Efficient Optimizing Horn Solver
Creators: name: Hojjat, Hossein
name: Rümmer, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper describes an ongoing effort to develop an optimizing version of the Eldarica Horn solver. The work starts from the observation that many kinds of optimization problems, and in particular the MaxSAT/SMT problem, can be seen as search problems on lattices. The paper presents a Scala library providing a domain-specific language (DSL) to uniformly model optimization problems of this kind, by defining, manipulating, and systematically exploring lattices with associated objective functions. The framework can be instantiated to obtain an optimizing Horn solver. As an illustration, the application of an optimizing solver for repairing software-defined networks is described.
description: In Proceedings HCVS/VPT 2022, arXiv:2211.10675
CHC-COMP 2022: Competition Report
Creators: name: De Angelis, Emanuele
name: K, Hari Govind V
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences
subject: F.3.1

description: CHC-COMP 2022 is the fifth edition of the competition of solvers for Constrained Horn Clauses. The competition was run in March 2022; the results were presented at the 9th Workshop on Horn Clauses for Verification and Synthesis held in Munich, Germany, on April 3, 2022. This edition featured six solvers, and eight tracks consisting of sets of linear and nonlinear clauses with constraints over linear integer arithmetic, linear real arithmetic, arrays, and algebraic data types. This report provides an overview of the organization behind the competition runs: it includes the technical details of the competition setup as well as presenting the results of the 2022 edition.
description: In Proceedings HCVS/VPT 2022, arXiv:2211.10675. arXiv admin note: text overlap with arXiv:2109.04635, arXiv:2008.02939 by other authors
EU DIGITAL COPYRIGHT E SOCIAL NETWORK
Creators: name: BANTERLE, FRANCESCO
Publisher: name: Universit� degli Studi di Milano
Year: 2015

description: Social networks are the latest mutation of the Internet. They have changed the online use of information and led to the ?disintermediation? of cultural contents, thus causing a radical revolution of the Internet through a social participation in the web. This paper has attempted to analyze the relationship between copyright and social networks in Europe by investigating three different aspects connected to each other: (i) the applicability of exceptions and limitations to copyright in the social network environment; (ii) the regulation of hyperlinks to copyrighted contents; and (iii) the liability regime of internet service providers. This investigation is aimed at verifying if a balance exists among the following needs: (i) free access to information and culture in the Internet (particularly in the social networks environment); (ii) creation of new Internet services; and (iii) online protection of copyrighted works. With regard to exceptions and limitations to copyright and their applicability in the social network environment, the InfoSoc Directive introduced at Community level a ?closed? system of exceptions and limitations. These exceptions appear to be obsolete and unable to adapt to innovations and new online uses. In particular this paper analyzes, through a broad examination of the EU case law, the only two exceptions which seem to have a limited online application: the quotation right and parody. In relation to hyperlinks, as far as copyright is concerned, linking may raise critical issues under different circumstances. Starting from the analysis of two recent decisions of the ECJ (Svensson and BestWater) this paper investigates how hyperlinks to copyrighted contents shall be considered and whether they may constitute copyright infringement (i.e., an unauthorized act of communication to the public). Finally, the third part of this paper will analyze the evolution of the EU case law about ISP liability regime, its applicability to social networks, and the relationship with exceptions and limitations, in order to understand whether European courts have reached a balanced application of these principles.
Analysis of a decision model in the context of equilibrium pricing and order book pricing
Creators: name: Wagner, Daniel C.
name: Schmitt, Thilo A.
name: Schäfer, Rudi
name: Guhr, Thomas
name: Wolf, Dietrich E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business

description: An agent-based model for financial markets has to incorporate two aspects: decision making and price formation. We introduce a simple decision model and consider its implications in two different pricing schemes. First, we study its parameter dependence within a supply-demand balance setting. We find realistic behavior in a wide parameter range. Second, we embed our decision model in an order book setting. Here we observe interesting features which are not present in the equilibrium pricing scheme. In particular, we find a nontrivial behavior of the order book volumes which reminds of a trend switching phenomenon. Thus, the decision making model alone does not realistically represent the trading and the stylized facts. The order book mechanism is crucial.
Meristhus (Meristhus) sikkimensis Cate 2007
Creators: name: Kotru, Akash
name: Chandran, Nithya
name: Dubey, Anil Kumar
name: Prosvirov, Alexander S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Meristhus
Meristhus sikkimensis

description: Meristhus (Meristhus) sikkimensis Cate, 2007
Meristhus (Sulcimerus) crenulatus Mukhopadhyay and Chakraborty, 2003: 225.
Meristhus sikkimensis Cate, 2007: 44.
Type depository. Unknown.
Type locality. Sikkim (Exact locality not known).
Distribution. India: Sikkim.
Literature. Mukhopadhyay and Chakraborty (2003: 225): original description; Cate (2007: 44): catalogue, replacement name.
Subgenus Sulcimerus Arnett, 1955
Sulcimerus Arnett, 1955: 617. Type species: Meristhus quadripunctatus Candèze, 1857: 163. For more information, see Kundrata et al. (2019a).
description: Published as part of Kotru, Akash, Chandran, Nithya, Dubey, Anil Kumar & Prosvirov, Alexander S., 2025, A catalogue of Indian Agrypninae Candèze, 1857 (Coleoptera: Elateridae), pp. 1-66 in Zootaxa 5614 (1) on page 33, DOI: 10.11646/zootaxa.5614.1.1, http://zenodo.org/record/15217075
ТРАНСФОРМАЦИЯ ОСУШАЕМЫХ ГИДРОМОРФНЫХ ПОЧВ ЗАПАДНОЙ СИБИРИ ПРИ ДЛИТЕЛЬНОМ ВОЗДЕЙСТВИИ ПРИРОДНЫХ И АНТРОПОГЕННЫХ ФАКТОРОВ
Creators: name: НОВОХАТИН ВАСИЛИЙ ВАСИЛЬЕВИЧ
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: БОЛОТНЫЕ ГЕОСИСТЕМЫ
ДЕГРАДАЦИЯ ПОЧВ
МЕЛИОРАЦИЯ
ВОДНЫЙ РЕЖИМ
ПАРАМЕТРЫ МЕЛИОРАТИВНОЙ СИСТЕМЫ
ОСАДКА И СРАБОТКА ОРГАНОГЕННЫХ ПОЧВ
MARSH GEOSYSTEMS
SOIL DEGRADATION
RECLAMATION
WATER REGIME
PARAMETERS OF THE RECLAMATION SYSTEM
SEDIMENT AND DISCHARGE OF ORGANOGENIC SOILS

description: Крупные массивы болотных геосистем, которые можно потенциально использовать в сельскохозяйственном производстве, почти целиком располагаются в лесостепной и подтаёжной подзонах Западной Сибири, где они занимают большие площади междуречных пространств. В естественном состоянии эти почвы почти не используются в сельском хозяйстве. Вовлечение их в оборот, на основе широких мелиораций, позволит интенсифицировать сельскохозяйственное производство и расширить площади под культурами, пастбищами и продуктивными лугами. Естественно, изменяя водный режим, мы вторгаемся в естественный процесс эволюции болотных комплексов. Для правильной оценки изменений происходящих в гидроморфных залежах под действием мелиораций и возможности управления этим процессом требуется системный анализ количественных характеристик, полученных на основе натурных исследований, а также их теоретическое обоснование с широким применением математических методов. Полноценных, комплексных исследований в рассматриваемых подзонах, о трансформации гидроморфных почв, практически не проводилось. Поэтому решающее значение на современном этапе освоения болотных геосистем имеет анализ долгосрочных, комплексных стационарных исследований. В предлагаемой работе приводятся результаты длительных наблюдений за осадкой и сработкой осушаемых гидроморфных почв. Приводятся математические зависимости и диаграмма для прогнозирования интенсивности сработки таких почв в лесостепной и подтаёжной подзонах Западной Сибири.
Coronal seismology by slow waves in non-adiabatic conditions
Creators: name: Kolotkov, Dmitrii Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Slow magnetoacoustic waves represent an important tool for probing the solar coronal plasma. We quantitatively assess the applicability of the weak thermal conduction theory to coronal seismology by slow waves. We numerically model the linear standing slow wave in a 1D coronal loop, with field-aligned thermal conduction $κ_\parallel$ as a free parameter and no restrictions on its efficiency. The time variations of the perturbed plasma parameters, obtained numerically with full conductivity, are treated as potential observables and analysed with the standard data processing techniques. The slow wave oscillation period is found to increase with $κ_\parallel$ by about 30%, indicating the corresponding modification in the effective wave speed, which is missing from the weak conduction theory. Phase shifts between plasma temperature and density perturbations are found to be well consistent with the approximate weakly conductive solution for all considered values of $κ_\parallel$. In contrast, the comparison of the numerically obtained ratio of temperature and density perturbation amplitudes with the weak theory revealed relative errors up to 30-40%. We use these parameters to measure the effective adiabatic index of the coronal plasma directly as the ratio of the effective slow wave speed to the standard sound speed and in the polytropic assumption, which is found to be justified in a weakly conductive regime only, with relative errors up to 14% otherwise. The damping of the initial perturbation is found to be of a non-exponential form during the first cycle of oscillation, which could be considered as an indirect signature of entropy waves in the corona, also not described by weak conduction theory. The performed analysis and obtained results offer a more robust scheme of coronal seismology by slow waves, with reasonable simplifications and without the loss of accuracy.
description: Accepted for publication in Front. Astron. Space Sci
Circle detection using Discrete Differential Evolution Optimization
Creators: name: Cuevas, Erik
name: Zaldivar, Daniel
name: Perez, Marco
name: Ramirez, Marte
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper introduces a circle detection method based on Differential Evolution (DE) optimization. Just as circle detection has been lately considered as a fundamental component for many computer vision algorithms, DE has evolved as a successful heuristic method for solving complex optimization problems, still keeping a simple structure and an easy implementation. It has also shown advantageous convergence properties and remarkable robustness. The detection process is considered similar to a combinational optimization problem. The algorithm uses the combination of three edge points as parameters to determine circles candidates in the scene yielding a reduction of the search space. The objective function determines if some circle candidates are actually present in the image. This paper focuses particularly on one DE-based algorithm known as the Discrete Differential Evolution (DDE), which eventually has shown better results than the original DE in particular for solving combinatorial problems. In the DDE, suitable conversion routines are incorporated into the DE, aiming to operate from integer values to real values and then getting integer values back, following the crossover operation. The final algorithm is a fast circle detector that locates circles with sub-pixel accuracy even considering complicated conditions and noisy images. Experimental results on several synthetic and natural images with varying range of complexity validate the efficiency of the proposed technique considering accuracy, speed, and robustness.
description: 20 Pages. arXiv admin note: text overlap with arXiv:1405.7242
КОМПЛЕКС ЗЕМЛЕУСТРОИТЕЛЬНЫХ И КАДАСТРОВЫХ РАБОТ ПРИ ФОРМИРОВАНИИ ЗЕМЕЛЬНОГО УЧАСТКА ПОД ПОЛИГОН ТВЕРДЫХ КОММУНАЛЬНЫХ ОТХОДОВ В Г. ТАРКО-САЛЕ
Creators: name: ЗАПЕВАЛОВ ВЛАДИМИР НИКОЛАЕВИЧ
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: КАДАСТРОВЫЕ РАБОТЫ
ЗЕМЛЕУСТРОЙСТВО
ПОЛИГОН ТКО
ЗЕМЛИ ЛЕСНОГО ФОНДА
ПЕРЕВОД ЗЕМЕЛЬ
CADASTRAL WORKS
LAND MANAGEMENT
LANDFILL OF WASTES
THE LANDS OF THE FOREST FUND
THE TRANSFER OF LAND

description: В настоящее время в Российской Федерации остро стоит проблема утилизации твердых коммунальных отходов. Одним из основных способов их утилизации является складирование, для которого необходимы специализированные объекты. Ежегодно вблизи городов и других населённых пунктов образуется огромное количество твердых коммунальных отходов (ТКО), которые часто размещаются на территориях, не предназначенных для этих целей, что провоцирует развитие разрушительных процессов территории, загрязнение воздушного бассейна, наземных и подземных вод. Эта проблема актуальна практически для всех населённых пунктов Российской Федерации, в том числе и для северных территорий. До сих пор в России остается неразвитой система переработки отходов, в основном они подлежат захоронению на полигонах. Целью статьи является поиск решений для формирования и оформления прав на полигон твердых коммунальных отходов (ТКО) на непредусмотренной для этих целей территории. Для достижения поставленной цели необходимо решить следующие задачи: раскрыть понятие, виды и назначение объектов размещения отходов; исследовать методику формирования земельных участков под объекты утилизации на застроенной территории; рассмотреть комплекс землеустроительных и кадастровых работ при формировании земельного участка под полигон ТКО в г. Тарко-Сале.
ОПРЕДЕЛЕНИЕ ФИЗИКО-МЕХАНИЧЕСКИХ ХАРАКТЕРИСТИК (Ρ И K) И ОЦЕНКА УСТОЙЧИВОСТИ ОТВАЛЬНОЙ МАССЫ ПО РЕЗУЛЬТАТАМ НАТУРНЫХ ИСПЫТАНИЙ В УСЛОВИЯХ ГОРЕВСКОГО МЕСТОРОЖДЕНИЯ
Creators: name: БООС И.Ю.
name: ПАТАЧАКОВ И.В.
name: ЛАТЫПОВ В.Д.
name: РУДЕНКО Е.А.
name: АКТЕЛОВА А.Ю.
name: ЧЕРПАКОВА А.А.
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: ФИЗИКО-МЕХАНИЧЕСКИЕ ХАРАКТЕРИСТИКИ
ОТВАЛЫ
ГОРЕВСКИЙ ГОК
КОЭФФИЦИЕНТ СЦЕПЛЕНИЯ
ПОРОДА
THE PHYSICAL AND MECHANICAL CHARACTERISTICS
DUMPS
GOREVSKY GOK
COEFFICIENT OF ADHESION
ROCKS

description: Устойчивость породных отвалов, образующихся при производстве горных работ, может оказывать большое влияние на технологию отработки и отвалообразования, экономическую эффективность предприятия, и главное на безопасность ведения горных работ. Для предупреждения опасных ситуаций связанных с деформациями отвалов, необходимо производить обоснование параметров формируемых отвалов. Для оценки устойчивости откосов породных отвалов необходимо знать физико-механические свойства пород слагающих отвал. Одними из важнейших физико-механических свойств влияющих на устойчивость откосов являются сцепление ( k) и угол внутреннего трения (ρ). Отвалы представляют собой массу разрыхленных горных пород, поэтому их прочностные свойства отличаются от прочностных свойств пород в массиве, и не могут быть приняты по результатам испытания образцов горных пород в лабораторных условиях. Поэтому для получения наиболее достоверных физико-механических свойств пород, слагающих тело отвала, необходимо производить натурные испытания путём сдвига нарезанных непосредственно в отвале породных призм с помощью гидродомкратов. Для оценки устойчивости породных отвалов Горевского свинцово-цинкового месторождения, были проведены натурные испытания породных призм. По результатам испытаний были построены паспорта для каждого испытания, по которым определены значения основных физико-механических характеристик: сцепления (k), и угла внутреннего трения (r), а так-же плотности пород (γ) слагающих различные участки отвалов. По полученным данным произведена оценка устойчивости отвалов и установлены предельные параметры результирующего угла наклона и высоты одноярусных и многоярусных отвалов в условиях Горевского месторождения.
ENVIRONMENTAL ASSESSMENT OF THE MAIN NORTHERN ITALY BEEF PRODUCTION SYSTEMS USING AN LCA METHODOLOGY
Creators: name: BOSELLI, LEONARDO
Publisher: name: Universit� degli Studi di Milano
Year: 2015

description: Italian agriculture, included animal breeding, contributes for 7.0% to national greenhouse gases (GHG) emissions and also accounts for 95% of national ammonia emissions. Beef and dairy cattle production systems are considered the first contributors to the environmental impact of livestock sector mainly due to enteric fermentation emissions but also because of the lowest feed conversion rates compared to monogastric species. The Italian beef sector main outputs, young bulls, heifers, cull cows and veal calves were highlighted. This study aims to estimate, using an LCA approach, the environmental impact of the main Italian beef production systems that are: white veal calves, cattle for fattening and cow-calf system. White veal calves system includes a dairy cow-calf producer and stockers where dairy calves are fattened. The fattening system includes the French ? Italian and Piedmontese chains. The cow-calf system consists of suckler-calf and calf-to-beef farms. A sample of thirty representative beef specialized farms, were identified thanks to breeders associations and beef chain actors. Each beef production system is analyzed from cradle to the farm exit gate, including both calf-to-weanlings and fattening stage, farm inputs, animal transport. Kilogram of live weight (LW) has been adopted as functional unit (FU). Biophysical allocation has been applied to split impacts among the co-products of the targeted systems. Environmental performances are summarized in the following categories: global warming potential (GWP), acidification potential (AP), eutrophication potential (EP), cumulative energy demand (CED), ecological footprint (EFP). Calf-to-weanlings stage represents the major source of emissions apart from beef production system. Global warming potential values range from 14.28 kgCO2-eq to 23.60 kg CO2-eq per kg LW of French ? Italian young bulls and young bulls reared in calf-to-beef farms respectively. Global warming potential values of Piedmontese fattening young bulls range from 17.46 kgCO2-eq to 19.57 kgCO2-eq per kg LW according to the methodology applied. French-Italian young bulls resulted to be the best environmentally-friendly together with the other intensive system, the Piedmontese one, due to the higher birth percentage per suckler cow and cattle for replacement rate collected respectively in the French case study (91%, 21%) and in the Piedmontese one producing 5-months weaners (89%, 6%). An high variability is observed among production systems because of animal category, farm management, feeding system and land use. Results are in the range of those proposed by literature referring to the same animal category. A beef production system based on specialized calf-to-weanlings plus finishing farm seems to be more sustainable than a cow-calf one.
ИСПОЛЬЗОВАНИЕ И ОХРАНА ЗЕМЕЛЬНЫХ РЕСУРСОВ ПРИ РАЦИОНАЛЬНОМ ЗЕМЛЕПОЛЬЗОВАНИИ
Creators: name: КУЗНЕЦОВА СВЕТЛАНА ГЕОРГИЕВНА
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: ЗЕМЕЛЬНЫЕ РЕСУРСЫ
РАЦИОНАЛЬНОЕ ЗЕМЛЕПОЛЬЗОВАНИЕ
ПРОБЛЕМЫ ЗЕМЛЕПОЛЬЗОВАНИЯ
ЭФФЕКТИВНОЕ ИСПОЛЬЗОВАНИЕ ЗЕМЕЛЬ
LAND RESOURCES
RATIONAL LAND USE
PROBLEMS OF LAND USE
EFFECTIVE USE OF LAND

description: Процесс перераспределения земель содержит проблемы в сфере эффективного и рационального использования земельных ресурсов. Эффективность использование земель состоит из определенных условий современного развития землепользования. Понятие рационального использования и охрана земельных ресурсов в системе землепользований, это одна из составляющей стороны народного хозяйства. В статье рассматривается широкий круг вопросов, связанных с использованием, перераспределением и охраной земельных ресурсов, а также их взаимосвязь в различных сферах хозяйствования.
Shape Resonances in superconducting gaps in a 2DEG at oxide-oxide interface
Creators: name: Bianconi, Antonio
name: Innocenti, Davide
name: Valletta, Antonio
name: Perali, Andrea
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In multiband superconductivity, the case where the single electron hopping between different Fermi surface spots of different symmetry is forbidden by selection rules is recently attracting a large interest. The focus is addressed to superconductivity made of multiple condensates with different symmetry where the chemical potential crosses a 2.5 Lifshitz transition. This can now be investigated experimentally by fine-tuning of the chemical potential in the range of tens meV around a band edge using gate voltage control. We discuss here the case of the two-dimensional electron gas (2DEG), at the interface between two insulating oxides confined within a slab of 5 nanometers thickness, where the electronic structure is made of subbands generated by quantum size effects. We focus on the case of the BCS-BEC transition in the upper subband for different pairing strength in the shallow Fermi surface.
description: 10 pages, 6 figures, MBT17 Conference Proceedings, Rostock, Germany, Sept 2013
Spatially Nonuniform Oscillations in Ferrimagnets Based on an Atomistic Model
Creators: name: Zhang, Xue
name: Cai, Baofang
name: Ren, Jie
name: Yuan, Zhengping
name: Xu, Zhengde
name: Yang, Yumeng
name: Liang, Gengchiau
name: Zhu, Zhifeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ferrimagnets, such as GdxFeCo(1-x), can produce ultrafast magnetic switching and oscillation due to the strong exchange field. The two-sublattices macrospin model has been widely used to explain the experimental results. However, it fails in describing the spatial nonuniform magnetic dynamics which gives rises to many important phenomenons such as the domain walls and skyrmions. Here we develop the two-dimensional atomistic model and provide a torque analysis method to study the ferrimagnetic oscillation. Under the spin-transfer torque, the magnetization oscillates in the exchange mode or the flipped exchange mode. When the Gd composition is increased, the exchange mode firstly disappears, and then appears again as the magnetization compensation point is reached. We show that these results can only be explained by analyzing the spatial distribution of magnetization and effective fields. In particular, when the sample is small, a spatial nonuniform oscillation is also observed in the square film. Our work reveals the importance of spatial magnetic distributions in understanding the ferrimagnetic dynamics. The method developed in this paper provides an important tool to gain a deeper understanding of ferrimagnets and antiferromagnets. The observed ultrafast dynamics can also stimulate the development of THz oscillators.
description: 17 pages, 4 figures
Contour-FFT based Spectral Domain MBF Analysis of Large Printed Antenna Arrays
Creators: name: Jha, Shambhu Nath
name: Craeye, Christophe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A fast spectral-domain method is proposed to evaluate the reaction terms between the Macro Basis Functions in regular and non-regular arrays made of identical printed antennas. The presented technique first exploits the filtering capabilities of the Macro Basis Functions in the spectral domain. The method is then strongly accelerated with the help of a newly formulated Fast Fourier Transform-based technique, which is applicable to a contour integration in the complex plane. We name the method as Contour-FFT or C-FFT. Besides an effective homogeneous medium term treated with multipoles, a computational complexity of order N log_2 N is achieved for the the tabulation of substrate-related reaction terms for any possible relative positions. The complexity of the proposed method is independent from the complexity of the elements. Numerical results obtained with the proposed method are compared with those from a pre-validated reference solution based on the traditional Macro Basis Functions technique; an excellent agreement is observed.
description: Submitted to IEEE Transactions on Antennas and Propagation, March 25, 2014