cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Developing a Conversational Recommendation System for Navigating Limited Options
Creators: name: Bursztyn, Victor S.
name: Healey, Jennifer
name: Koh, Eunyee
name: Lipka, Nedim
name: Birnbaum, Larry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: H.3.3; H.5.2

description: We have developed a conversational recommendation system designed to help users navigate through a set of limited options to find the best choice. Unlike many internet scale systems that use a singular set of search terms and return a ranked list of options from amongst thousands, our system uses multi-turn user dialog to deeply understand the users preferences. The system responds in context to the users specific and immediate feedback to make sequential recommendations. We envision our system would be highly useful in situations with intrinsic constraints, such as finding the right restaurant within walking distance or the right retail item within a limited inventory. Our research prototype instantiates the former use case, leveraging real data from Google Places, Yelp, and Zomato. We evaluated our system against a similar system that did not incorporate user feedback in a 16 person remote study, generating 64 scenario-based search journeys. When our recommendation system was successfully triggered, we saw both an increase in efficiency and a higher confidence rating with respect to final user choice. We also found that users preferred our system (75%) compared with the baseline.
description: 7 pages, 4 figures, to appear in CHI 2021 as a Late Breaking Work, see "https://chi2021.acm.org/"
An ERP study on the processing of agreement and tense violations in Arabic
Creators: name: Idrissi, Ali
name: Al-Kaabi, Meera
name: Muralikrishnan, R.
Publisher: name: Zenodo
Year: 2012
Subjects: EEG
Visual ERP study
Arabic
Agreement
Tense

description: Idrissi, Al-Kaabi & Muralikrishnan (2012). Poster presented at the 8th International Conference on the Mental Lexicon, Montreal, Quebec, Canada.
Dynamic corporate capital structure behavior: empirical assessment in the light of heterogeneity and non stationarity
Creators: name: Bontempi, Maria Elena
name: Bottazzi, Laura
name: Golinelli, Roberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: Understanding the dynamics of the leverage ratio is at the heart of the empirical research about firms' capital structure, as they can be very different under alternative theoretical models. The pillars of almost all empirical applications are the maintained assumptions of poolability and stationarity, which are motivated by the need of model’s
simplicity and treatability, rather than being based on an empirical ground. In this paper we provide robust evidence of non-stationarity for a significantly large share of US
firms' debt ratios and of strong heterogeneity in the speeds at which firms adjust towards their targets. These results stimulate new directions of the empirical research on
debt ratio dynamics by relying more on the concept of heterogeneous degree of leverage persistence.
On the remote Galactic globular cluster NGC 2419
Creators: name: Ripepi, V.
name: Clementini, G.
name: Di Criscienzo, M.
name: Greco, C.
name: Dall'Ora, M.
name: Federici, L.
name: Di Fabrizio, L.
name: Musella, I.
name: Marconi, M.
name: Baldacci, L.
name: Maio, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new, deep (V ~ 26) study of the Galactic globular cluster NGC 2419 based on B,V,I time-series CCD photometry over about 10 years and extending beyond the cluster published tidal radius. We have identified 101 variable stars of which 60 are new discoveries, doubling the known RR Lyrae stars and including 12 SX Phoenicis stars. The average period of the RR Lyrae stars (=0.662 d, and =0.366 d, for fundamental-mode -RRab- and first-overtone pulsators, respectively), and the position in the period-amplitude diagram both confirm that NGC 2419 is an Oosterhoff II cluster. The average apparent magnitude of the RR Lyrae stars is =20.31 +/- 0.01 (sigma=0.06, 67 stars) and leads to the distance modulus (m-M)o=19.60 +/- 0.05. The Color-Magnitude Diagram, reaching about 2.6 mag below the cluster turn-off, does not show clear evidence of multiple stellar populations. Cluster stars are found until r~ 10.5', and possibly as far as r~15', suggesting that the literature tidal radius might be underestimated. No extra-tidal structures are clearly detected in the data. NGC 2419 has many blue stragglers and a well populated horizontal branch extending from the RR Lyrae stars down to an extremely blue tail ending with the "blue-hook", for the first time recognized in this cluster. The red giant branch is narrow ruling out significant metallicity spreads. Our results seem to disfavor the interpretation of NGC 2419 as either having an extragalactic origin or being the relict of a dwarf galaxy tidally disrupted by the Milky Way.
description: ApJ Letters, in press
Cluster Complexes via Semi-Invariants
Creators: name: Igusa, Kiyoshi
name: Orr, Kent
name: Todorov, Gordana
name: Weyman, Jerzy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16G20, 13A50

description: We define and study virtual representation spaces having both positive and negative dimensions at the vertices of a quiver without oriented cycles. We consider the natural semi-invariants on these spaces which we call virtual semi-invariants and prove that they satisfy the three basic theorems: the First Fundamental Theorem, the Saturation Theorem and the Canonical Decomposition Theorem. In the special case of Dynkin quivers with n vertices this gives the fundamental interrelationship between supports of the semi-invariants and the Tilting Triangulation of the (n-1)-sphere.
description: 34 pages
Elasto-visco-plastic material models and their industrial applications
Creators: name: Capasso, Daniela
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: The main goal of this work is the analysis of the procedure for material characterization aimed at elasto-visco-plastic models and their implementation in FEM codes. This will be done in order to perform stress analysis of structural components under repeated cyclical loads and high temperatures The overall development involves theoretical, numerical and experimental methodologies. The study of state of the art of material models, available in FEM codes, has allowed the evaluation of the limits of stress analysis on components subjected to repeated cyclical loads and high temperature. The initial study has also highlighted the necessity to implement complex material models. Traditionally this lack has been faced through the use of factors of safety, which are developed and refined on the basis of the experience and historical backgrounds. For systems where efficient design is of the utmost importance (for example the minimum weight design of an aircraft structure), it is possible that the traditional factors of safety may be overly conservative, so that optimal efficiency cannot be achieved. The implementation of complex material models allows simulating the real material behaviour and taking into account the non-linear interaction between creep and fatigue for structural analysis and life prediction. The results are more dependable and allow reducing the traditional factors of safety, consequently lead to a significant improvement in the designing of structural components. The process of material characterization has been developed through the following phases: designing the necessary experimental data base, choosing the constitutive laws, describing the iterative procedure for determining the coefficients of material model and the procedure of model validation, performed by comparisons between experimental data and simulated ones. It has been described how a poor experimental data base influences the material characterization process and the limits of an automatic procedure. Guidelines have been provided for designing experimental tests able to identify the optimized model parameters. In this way, it will be possible to determine material models with wide range of validity and to allow reducing time and costs of a characterization process. A methodology of structural analysis has been developed through the comparison with procedures of tested validity, in way to allow a correct and safe implementation of elasto-visco-plastic material models. An elasto-visco-plastic analysis on a combustion chamber of aeronautical engine has been performed and component life determined, taking into account the interaction between fatigue and creep.
Perkembangan Telekonsultasi Pelayanan Kesehatan Maternal
Creators: name: Fuad, Anis
Publisher: name: Zenodo
Year: 2021
Subjects: telemedicine
maternal health
Indonesia

description: Presentasi ini menyampaikan tentang perkembangan telekonsultasi kesehatan ibu, khususnya di era pandemi, serta tantangan implementasinya. Materi ini pernah disampaikan di berbagai seminar daring.
description: {"references": ["https://setkab.go.id/presiden-apresiasi-penggunaan-aplikasi-telemedicine-untuk-kurangi-risiko-tenaga-medis/", "Riskesdas, 2013", "Pengalaman penerapan big data di Dinas Kesehatan Kota Semarang (seminar daring)", "https://www.who.int/news/item/13-05-2020-people-living-longer-and-healthier-lives-but-covid-19-threatens-to-throw-progress-off-track?utm_campaign=who-people-living-longer-and-healthier-lives-but-covid-19-threatens-to-throw-progress-off-track-world-health-organization&utm_medium=rss&utm_source=rss", "@VectorSting", "https://theprint.in/health/how covid is making it tougher to tackle tb aids malaria and child health/443658/", "https://www.theguardian.com/commentisfree/2020/apr/29/us responses 1918 flu pandemic offer stark lessons coronavirus now", "https://apps.who.int/iris/bitstream/handle/10665/63857/WHO_DGO_98.1.pdf?sequence=1&isAllowed=y", "Wake, Deborah Jane, et al. \"Endocrinology in the time of COVID 19: Remodelling Diabetes Services and Promoting Innovation.\" European Journal of Endocrinology 1.aop (2020).", "Bouchonville , Matthew F., et al. \"Taking telemedicine to the next level in diabetes population management: a review of the Endo ECHO model.\" Current diabetes reports 16.10 (2016):", "Ma, Schweitzer, N. Lasierra , and Hoerbst Aa. \"Observing health professionals' workflow patterns for diabetes care First steps towards an ontology for EHR services.\" Digital Healthcare Empowering Europeans: Proceedings of MIE2015 210 (2015): 25.", "Kaufman, David R., et al. \"Understanding workflow in telehealth video visits: Observations from the IDEATel project.\" Journal of Biomedical Informatics 42.4 (2009): 581 592.", "Jung, Eun Young, et al. \"Mobile healthcare application with EMR interoperability for diabetes patients.\" Cluster Computing 17.3 (2014): 871 880.", "Aziz, Aleha , et al. \"Telehealth for high risk pregnancies in the setting of the COVID 19 pandemic.\" American journal of perinatology 37.8 (2020): 800", "de Mooij , Marnie J. Meylor , et al. \"OB Nest: reimagining low risk prenatal care.\" Mayo Clinic Proceedings . Vol. 93. No. 4. Elsevier, 2018.", "Wenerda, I. (2019). Grup WhatsApp Sebagai Wadah Komunikasi Ibu-Ibu di Era Digital. Jurnal Penelitian Pers Dan Komunikasi Pembangunan, 23(1), 43-53.", "Permenkes no 21 tahun 2020 tentang Rencana Strategis Kementerian Kesehatan 2020-2024", "American Medical Association. Telehealth implementation playbook", "Aoun. Robot Proof: Higher Education in the Age of Artificial Intelligence (2017)", "Sittig, D. F., & Singh, H. (2015). A new socio-technical model for studying health information technology in complex adaptive healthcare systems.", "Fuad, A. Urgensi regulasi kesehatan digital. Media Indonesia 2020"]}
Towards Causal Federated Learning For Enhanced Robustness and Privacy
Creators: name: Francis, Sreya
name: Tenison, Irene
name: Rish, Irina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: I.2.0

description: Federated Learning is an emerging privacy-preserving distributed machine learning approach to building a shared model by performing distributed training locally on participating devices (clients) and aggregating the local models into a global one. As this approach prevents data collection and aggregation, it helps in reducing associated privacy risks to a great extent. However, the data samples across all participating clients are usually not independent and identically distributed (non-iid), and Out of Distribution(OOD) generalization for the learned models can be poor. Besides this challenge, federated learning also remains vulnerable to various attacks on security wherein a few malicious participating entities work towards inserting backdoors, degrading the generated aggregated model as well as inferring the data owned by participating entities. In this paper, we propose an approach for learning invariant (causal) features common to all participating clients in a federated learning setup and analyze empirically how it enhances the Out of Distribution (OOD) accuracy as well as the privacy of the final learned model.
USING DIGITAL TECHNOLOGIES TO PROMOTE TOURISM INDUSTRY
Creators: name: Akramova, Nasiba
Publisher: name: Zenodo
Year: 2024

description: opinions about the importance of digital technologists in the promotion of tourism products are expressed in the thesis. The importance of digital technologies in the development of the current tourism market is increasing day by day. Representatives of the tourism industry prefer to sell their tourist products quickly, taking into account the time factor. It is certainly taking into account the digital technologies that are implementing this quality.
Digital Stakes Enabling Sustainable Aviation Accelerated Development
Creators: name: Magnin, Pacôme
Publisher: name: Zenodo
Year: 2023

description: Pacome Magnin prepared and delivered a presentation entitled '2023 Oct PEGASUS - HERA Digital Stakes Enabling Sustainable Aviation Accelerated Development' for the PEGASUS Fall Meeting on October 27, 2023. The presentation included general aspects of the HERA project and described the role of Siemens Industry Software (SISW) in it.
Process tuning of physical properties of carbon nanotubes polymer composites
Creators: name: Faiella, Gabriella
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: This dissertation discusses a number of issues related to carbon nanotubes polymer composites. Starting from the study of CNTs solutions, the experimental work went through the production and characterization of CNTs thermoplastic and thermoset polymer composites using different methods. The use of a wide range of and characterization techniques allowed the investigation of different aspects related to the dispersion of CNTs both in water and in polymer matrices. Moreover, particular attention has been paid to their electrical properties and the dependence between the latter ones and the fabrication methods.
The solution and solid state photochemistry of some substituted acetophenones
Creators: name: Harkness, Brian Robert
Publisher: name: University of British Columbia
Year: 2010

description: A series of α-methyl-α-cycloalkyl- and α-cycloalkyl-para-substituted acetophenones have been synthesized. These compounds were found to react photochemically in the solid state to give cyclization and cleavage products as expected for a Norrish Type II reaction. It has been found that α-methyl substitution of α-cycloalkyl-para-carboxyacetophenones (cyclohexyl and cyclooctyl) results in changing the hydrogen abstraction transition state from boatlike to chairlike. This result is based on the assumption that the abstraction geometry is similar to the geometry of the ground state ketone as determined by X-ray crystallography. The differences in the ratios of cyclization to cleavage in the solid state as compared to solution wer found to be no greater than 10% for most of the ketones studied. This suggests that formation of cyclization and cleavage products are topochemically allowed in the solid state. Alternatively, the reaction may not be under topochemical control, however, the high melting points of the compounds studied tend to support the first possibility. α-Methylation of α-cyclopentyl-para-carboxyacetophenone decreased the percent cleavage from 100% to 45%. This result is likely due to a change in the geometry of the starting ketone which occurs upon α-methylation. Solid state photolysis of α-cycloalkyl-para-substituted acetophenones (cyclooctyl and cycloheptyl) results in almost exclusive formation of the trans-cyclobutanol. This result has been attributed to a restriction of the motions required for cis-cyclobutanol formation in the solid state.
Next-to-Leading Order Hard Scattering Using Fully Unintegrated Parton Distribution Functions
Creators: name: Rogers, Ted C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the next-to-leading order fully unintegrated hard scattering coefficient for unpolarized gluon-induced deep inelastic scattering using the logical framework of parton correlation functions developed in previous work. In our approach, exact four-momentum conservation is maintained throughout the calculation. Hence, all non-perturbative functions, like parton distribution functions, depend on all components of parton four-momentum. In contrast to the usual collinear factorization approach where the hard scattering coefficient involves generalized functions (such as Dirac $δ$-functions), the fully unintegrated hard scattering coefficient is an ordinary function. Gluon-induced deep inelastic scattering provides a simple illustration of the application of the fully unintegrated factorization formalism with a non-trivial hard scattering coefficient, applied to a phenomenologically interesting case. Furthermore, the gluon-induced process allows for a parameterization of the fully unintegrated gluon distribution function.
description: 22 pages, Typos Fixed, Reference Added, Minor Clarification Added
Who Will Stop Contributing: Predicting Sleeping Long-term Contributors in Open Source Communities
Creators: name: ni, xianjun
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461202
subject: Empirical software engineering

description:  Optional steps :

    First, create a Githubs folder in the project directory, and clone the following repositories in the Githubs directory : angular/angular, appium/appium, ethereum/go-ethereum, moby/moby, nodejs/node, microsoft/TypeScript.

    Then, we go into the rawData folder to get raw activity data for LTCs in these repoitories.

    Then, we go into the data folder to deal the raw activity data.

    Then, we go into the features folder to extract features.

Through the above steps, we get all the features we need from the LTCs of the seven repositories before 2022-06 and all the features we need from the LTCs of the six repositories in 2022-09.

In the RQ1 folder, we analyze RQ1, issues and comments of LTCs with the most emotional changes, issues and issue comments.

In the model folder, we determine the model, perform abaltion experiments, scalability analysis, and feature importance analysis.

In the survey folder, we collect the responses to the survey.

In the issueAndComments folder, there are issues and issue comments of the five LTCs with the most issue_num and issue_comments. And posDiff_comments, negDiff_comments the most positive and negative comments of LTCs for two months.
Identity Inference on Blockchain using Graph Neural Network
Creators: name: Shen, Jie
name: Zhou, Jiajun
name: Xie, Yunyi
name: Yu, Shanqing
name: Xuan, Qi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The anonymity of blockchain has accelerated the growth of illegal activities and criminal behaviors on cryptocurrency platforms. Although decentralization is one of the typical characteristics of blockchain, we urgently call for effective regulation to detect these illegal behaviors to ensure the safety and stability of user transactions. Identity inference, which aims to make a preliminary inference about account identity, plays a significant role in blockchain security. As a common tool, graph mining technique can effectively represent the interactive information between accounts and be used for identity inference. However, existing methods cannot balance scalability and end-to-end architecture, resulting high computational consumption and weak feature representation. In this paper, we present a novel approach to analyze user's behavior from the perspective of the transaction subgraph, which naturally transforms the identity inference task into a graph classification pattern and effectively avoids computation in large-scale graph. Furthermore, we propose a generic end-to-end graph neural network model, named $\text{I}^2 \text{BGNN}$, which can accept subgraph as input and learn a function mapping the transaction subgraph pattern to account identity, achieving de-anonymization. Extensive experiments on EOSG and ETHG datasets demonstrate that the proposed method achieve the state-of-the-art performance in identity inference.
description: Under review. Blockchain and Trustworthy Systems (BlockSys 2021). Springer, Singapore, 2021
Tests of mode coupling theory in a simple model for two-component miscible polymer blends
Creators: name: Moreno, A. J.
name: Colmenero, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present molecular dynamics simulations on the structural relaxation of a simple bead-spring model for polymer blends. The introduction of a different monomer size induces a large time scale separation for the dynamics of the two components. Simulation results for a large set of observables probing density correlations, Rouse modes, and orientations of bond and chain end-to-end vectors, are analyzed within the framework of the Mode Coupling Theory (MCT). An unusually large value of the exponent parameter is obtained. This feature suggests the possibility of an underlying higher-order MCT scenario for dynamic arrest.
description: Revised version. Additional figures and citations
Correlation Driven Transient Hole Dynamics Resolved in Space and Time in the Isopropanol Molecule
Creators: name: Barillot, T.
name: Alexander, O.
name: Cooper, B.
name: Driver, T.
name: Garratt, D.
name: Li, S.
name: Haddad, A. Al
name: Sanchez-Gonzalez, A.
name: Agåker, M.
name: Arrell, C.
name: Bearpark, M.
name: Berrah, N.
name: Bostedt, C.
name: Bozek, J.
name: Brahms, C.
name: Bucksbaum, P. H.
name: Clark, A.
name: Doumy, G.
name: Feifel, R.
name: Frasinski, L. J.
name: Jarosch, S.
name: Johnson, A. S.
name: Kjellsson, L.
name: Kolorenč, P.
name: Kumagai, Y.
name: Larsen, E. W.
name: Matia-Hernando, P.
name: Robb, M.
name: Rubensson, J. -E.
name: Ruberti, M.
name: Sathe, C.
name: Squibb, R. J.
name: Tan, A.
name: Tisch, J. W. G.
name: Vacher, M.
name: Walke, D. J.
name: Wolf, T. J. A.
name: Wood, D.
name: Zhaunerchyk, V.
name: Walter, P.
name: Osipov, T.
name: Marinelli, A.
name: Maxwell, T.
name: Coffee, R.
name: Lutman, A. A.
name: Averbukh, V.
name: Ueda, K.
name: Cryan, J. P.
name: Marangos, J. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The possibility of suddenly ionized molecules undergoing extremely fast electron hole dynamics prior to significant structural change was first recognized more than 20 years ago and termed charge migration. The accurate probing of ultrafast electron hole dynamics requires measurements that have both sufficient temporal resolution and can detect the localization of a specific hole within the molecule. We report an investigation of the dynamics of inner valence hole states in isopropanol where we use an x-ray pump/x-ray probe experiment, with site and state-specific probing of a transient hole state localized near the oxygen atom in the molecule, together with an ab initio theoretical treatment. We record the signature of transient hole dynamics and make the first observation of dynamics driven by frustrated Auger-Meitner transitions. We verify that the hole lifetime is consistent with our theoretical prediction. This state-specific measurement paves the way to widespread application for observations of transient hole dynamics localized in space and time in molecules and thus to charge transfer phenomena that are fundamental in chemical and material physics.
Analisi sperimentale del comportamento del guidatore nel passaggio da ambiente stradale extraurbano ad urbano e valutazione degli interventi di moderazione delle velocità operative
Creators: name: Lista, Antonella
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: Il sistema di trasporto stradale è composto dall'ambiente, dall'utente e dal veicolo. In tale sistema il guidatore è continuamente sollecitato dall’ambiente a prendere decisioni e a compiere azioni che si concretizzano nella condotta di guida. Una qualsiasi interferenza in questa interazione può essere causa di incidenti. Il comportamento di guida, argomento assai complesso da studiare, semplicisticamente può essere definito come una forma di adattamento locale alle condizioni ambientali. Oggetto del presente lavoro è la valutazione del comportamento del guidatore in un ambiente particolare: i tronchi stradali di attraversamento. Molti centri abitati italiani, infatti, si sviluppano lungo strade extraurbane percorse da utenti psicologicamente atteggiati in maniera contrastante con il contesto in cui si trovano a operare. Di qui la necessità di studiare tali comportamenti al fine di evidenziare ai conducenti il passaggio dagli ambiti puramente extraurbani a quelli urbani e sottolineare l’obbligo di una modifica dello stesso. Al fine di conseguire gli obiettivi preposti, è stata sviluppata una metodologia per la valutazione dell’efficacia delle “porte di accesso” e sono stati definiti alcuni principi di progettazione di base. La metodologia presuppone un’ analisi delle caratteristiche dell’incidentalità per la scelta e la progettazione degli interventi ed un confronto tra le velocità operative attuate prima e dopo la realizzazione degli stessi.
Elliptic flow in the Gaussian model of eccentricity fluctuations
Creators: name: Voloshin, Sergei A.
name: Poskanzer, Arthur M.
name: Tang, Aihong
name: Wang, Gang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss a specific model of elliptic flow fluctuations due to Gaussian fluctuations in the initial spatial $x$ and $y$ eccentricity components $\left\{\mean{(σ_y^2-σ_x^2)/(σ_x^2+σ_y^2)}, \mean{2σ_{xy}/(σ_x^2+σ_y^2)} \right\}$. We find that in this model $\vfour$, elliptic flow determined from 4-particle cumulants, exactly equals the average flow value in the reaction plane coordinate system, $\mean{v_{RP}}$, the relation which, in an approximate form, was found earlier by Bhalerao and Ollitrault in a more general analysis, but under the same assumption that $v_2$ is proportional to the initial system eccentricity. We further show that in the Gaussian model all higher order cumulants are equal to $\vfour$. Analysis of the distribution in the magnitude of the flow vector, the $Q-$distribution, reveals that it is totally defined by two parameters, $\vtwo$, the flow from 2-particle cumulants, and $\vfour$, thus providing equivalent information compared to the method of cumulants. The flow obtained from the $Q-$distribution is again $\vfour=\mean{v_{RP}}$.
description: Very minor changes, as submitted to Phys. Lett. B
title: ÐÑÐ°ÑÐºÐ¸Ð¹ ÐºÑÑÑ Ð»ÐµÐºÑÐ¸Ð¹ Ð¿Ð¾ ÑÐµÐ¾ÑÐ¸Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: Ð¢ÐµÑÐµÑÐ¸Ð½, ÐÐ°Ð»ÐµÑÐ¸Ð¹
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: ÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ

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Methodologies and Techniques for Semantic Management of Documents in Dematerialization Processes
Creators: name: Amato, Flora
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: Knowledge management has become a challenging issue for almost all the e-Government based applications. One of the main issues for E-Government activities is to manage the great amount of available data efﬁciently. The presence of a huge amount of information, in fact, is typical of bureaucratic processes, like the ones pertaining to public administrations. Such information is often recorded on paper or on different digital ﬁles and its management is very expensive, both in terms of space used for storing and in terms of time spent in searching for the documents of interest. Furthermore, the manual management of these documents is absolutely not error-free. In order to efﬁciently access the information embedded in very large document repositories, techniques for semantic document management are required. They ensure a large and intense process of dematerialization and aim at eliminating or at least reducing, the amount of paper documents. E-Government based applications need proper data models for information content characterization, in order to automatically transformunstructured (or sometimes semi-structured) documents into formally structured records, suitable for machine processing. Furthermore a way for presenting information contained in documents, depending on access policies and available technologies has to be provided. Finally different kinds of media elements, contained in digital documents, have to be managed. Indeed, nowadays, almost all the novel bureaucratic processes are characterized by both text and multimedia data (e. g. audio, still images, sometimes videos), which need to be properly handled, stored and distributed. In this thesis, we present a novel model of digital documents for improving the dematerialization effectiveness, that constitutes the starting point for an information system able to manage documents streams efﬁciently. This model takes into account E-Government applications needs like as the respect of provisions in force and the adaptability to evolving technologies. At the best of our knowledge, the proposed model is one of the ﬁrst attempts to give a single and uniﬁed characterization for the management of multimedia documents, pertaining to a bureaucratic domain as the E-Government one, on which a system of semantic procedures are deﬁned for the transformation of the non structured documents (pertaining to specialized domain) into structured data. Furthermore, architecture for the management of the document whole life cycle has been proposed, which provides advanced functionalities for semantic processing, such as giving formal structure to document informative content, information extraction, semantic retrieval, indexing, storage, presentation, together with long-term preservation.
A New Extensions of MSSM: FMSSM
Creators: name: Nandi, S.
name: Tavartkiladze, Zurab
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose an extension of the MSSM by adding vector like `matter' fields with masses near the TeV scale. This extension allows us to generate the masses of the bottom quark and tau lepton via radiative corrections such that only up type Higgs doublet couples with quarks and leptons. In addition to providing a natural explanation of the hierarchies between m_{b, τ} and m_t, this new extension, which we call FMSSM, allows the heavy sector of the MSSM Higgs bosons to be essentially fermiophobic as well as gaugephobic. Moreover, in this scenario there is no upper bound for the parameter \tan β. FMSSM can be distinguished from the MSSM, and has peculiar and unorthodox signals at the LHC, especially for the Higgs sector.
description: LaTex, 1 fig. Clarifying remarks added. To appear in Phys. Lett. B
Quasar Black Hole Masses from Velocity Dispersions
Creators: name: Canalizo, Gabriela
name: Wold, Margrethe
name: Lazarova, Mariana
name: Lacy, Mark
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Much progress has been made in measuring black hole (BH) masses in (non-active) galactic nuclei using the tight correlation between stellar velocity dispersions (sigma) in galaxies and the mass of their central BH. The use of this correlation in quasars, however, is hampered by the difficulty in measuring sigma in host galaxies that tend to be overpowered by their bright nuclei. We discuss results from a project that focuses on z~0.3 quasars suffering from heavy extinction at shorter wavelengths. This makes it possible to obtain clean spectra of the hosts in the spectral regions of interest, while broad lines (like H-alpha) are still visible at longer wavelengths. We compare BH masses obtained from velocity dispersions to those obtained from the broad line region and thus probe the evolution of this relation and BH growth with redshift and luminosity. Our preliminary results show an offset between the position of our objects and the local relation, in the sense that red quasars have, on average, lower velocity dispersions than local galaxies. We discuss possible biases and systematic errors that may affect our results.
description: 4 pages, to appear in the proceedings of the 2nd Kolkata conference on Observational Evidence for Black Holes in the Universe, ed. S. Chakrabarti (AIP)
RELIABILITY-ORIENTED VERIFICATION OF MISSION-CRITICAL SOFTWARE SYSTEMS
Creators: name: Pietrantuono, Roberto
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: With software systems increasingly being employed in critical contexts, assuring high reliability levels for large, complex systems can incur huge verification costs. Critical system developers often encounter serious difficulties in satisfying reliability requirements at competitive and acceptable cost and time. Currently, it is not clear how engineers should plan an effective verification strategy oriented to improve the final reliability, since it is not trivial to figure out what activities mainly impact the reliability-cost trade-off and how much they affect reliability. Most often, crucial choices in the verification activity are left to the engineers� intuition, which base their decisions on personal expertise and on past experience, due to the lack of convincing approaches coping with them. However, when dealing with high reliability targets and tight time/cost constraints, engineers responsible for verification should have quantitative evidences of the consequences of their choices, and base their decision on them. One fundamental aspect in a reliability-oriented verification process concerns the identification of the most critical parts of the system, i.e., the major contributors to its unreliability. This is crucial to conveniently distribute efforts for verification. However, even suitably allocating efforts, engineers should know what verification techniques most impact the final reliability, and what techniques are most suited for the features of the system under test. Hence, the proper selection of verification techniques that best adapt to the specific system being developed is another critical challenge to be addressed. Coping with these issues, engineers could tune a verification process for their systems simply following a quantitative reasoning able to highlight cost/benefits of each choice. Based on these considerations, the thesis proposes a solution to carrying out an effective verification specifically oriented to improve reliability. It intends to provide engineers with quantitative means that should be adopted and embedded in their process, to allow them conveniently allocating efforts and selecting techniques for the system under test. The thesis first identifies the major open challenges to be faced, by trying to figure out what are the most crucial steps that engineers need to take for an effective planning. Then, to cope with them, it proposes: i) an optimization model to allocate verification effort to different system components in order to achieve a required reliability level at minimum verification costs; ii) an approach, based on empirical analyses, to quantitatively support the selection of the best verification techniques; iii) a procedure to improve verification processes in the considered class of systems, able to iteratively refine results across the developed projects.
Valutazione ecografica dei muscoli extraoculari in pazienti affetti da oftalmopatia di Graves
Creators: name: D’Aponte, Antonella
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2005

description: Gli autori hanno valutato le modificazioni ecografiche dei muscoli extraoculari dei pazienti affetti da oftalmologia de Graves. I pazienti sono stati valutati da un punto di vista clinico in modo da essere tutti in uno stadio inattivo e moderatamnete severo della malattia. I pazienti sono stati suddivisi in due gruppi in base al successivo trattamento chirurgico subito. Le modificazioni della struttura e della reflettività dei muscoli extraoculari nei due diversi gruppi sono stati valutati con l'ecografia a-scan standardizzata.
Rapid directional alignment of velocity and magnetic field in magnetohydrodynamic turbulence
Creators: name: Matthaeus, W. H.
name: Pouquet, A.
name: Mininni, P. D.
name: Dmitruk, P.
name: Breech, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that local directional alignment of the velocity and magnetic field fluctuations occurs rapidly in magnetohydrodynamics for a variety of parameters. This is observed both in direct numerical simulations and in solar wind data. The phenomenon is due to an alignment between the magnetic field and either pressure gradients or shear-associated kinetic energy gradients. A similar alignment, of velocity and vorticity, occurs in the Navier Stokes fluid case. This may be the most rapid and robust relaxation process in turbulent flows, and leads to a local weakening of the nonlinear terms in the small scale vorticity and current structures where alignment takes place.
description: 4 pages, 6 figures
Solving the puzzle of high temperature light (anti)-nuclei production in ultra-relativistic heavy ion collisions
Creators: name: Neidig, Tim
name: Gallmeister, Kai
name: Greiner, Carsten
name: Bleicher, Marcus
name: Vovchenko, Volodymyr
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The creation of loosely bound objects in heavy ion collisions, e.g. light clusters, near the phase transition temperature $\left(T_{\rm ch} \approx 155 \, \rm{MeV} \right)$ has been a puzzling observation that seems to be at odds with Big Bang nucleosynthesis suggesting that deuterons and other clusters are formed only below a temperature $T\approx 0.1-1 \, \text{MeV}$. We solve this puzzle by showing that the light cluster abundancies in heavy ion reactions stay approximately constant from chemical freeze-out to kinetic freeze-out. To this aim we develop an extensive network of coupled reaction rate equations including stable hadrons and hadronic resonances to describe the temporal evolution of the abundancies of light (anti-)(hyper-)nuclei in the late hadronic environment of an ultrarelativistic heavy ion collision. It is demonstrated that the chemical equilibration of the light nuclei occurs on a very short timescale as a consequence of the strong production and dissociation processes. However, because of the partial chemical equilibrium of the stable hadrons, including the nucleon feeding from $Δ$ resonances, the abundancies of the light nuclei stay nearly constant during the evolution and cooling of the hadronic phase. This solves the longstanding contradiction between the thermal fits and the late stage coalescence (and the Big Bang nucleosynthesis) and explains why the observed light cluster yields are compatible with both a high chemical production temperature and a late state emission as modelled by coalescence. We also note in passing that the abundancies of the light clusters in the present approach are in excellent agreement with those measured by ALICE at LHC.
description: 6 pages, 5 figures
Transits and secondary eclipses of HD 189733 with Spitzer
Creators: name: Agol, Eric
name: Cowan, Nicolas B.
name: Bushong, James
name: Knutson, Heather
name: Charbonneau, David
name: Deming, Drake
name: Steffen, Jason H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present limits on transit timing variations and secondary eclipse depth variations at 8 microns with the Spitzer Space Telescope IRAC camera. Due to the weak limb darkening in the infrared and uninterrupted observing, Spitzer provides the highest accuracy transit times for this bright system, in principle providing sensitivity to secondary planets of Mars mass in resonant orbits. Finally, the transit data provides tighter constraints on the wavelength- dependent atmospheric absorption by the planet.
description: 7 pages, 7 figures, submitted to proceedings of IAU Symposium No. 253 "Transiting Planets"
From Percolation to Logarithmic Conformal Field Theory
Creators: name: Mathieu, Pierre
name: Ridout, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The smallest deformation of the minimal model M(2,3) that can accommodate Cardy's derivation of the percolation crossing probability is presented. It is shown that this leads to a consistent logarithmic conformal field theory at c=0. A simple recipe for computing the associated fusion rules is given. The differences between this theory and the other recently proposed c=0 logarithmic conformal field theories are underlined. The discussion also emphasises the existence of invariant logarithmic couplings that generalise Gurarie's anomaly number.
description: 12 pages, 2 figures, minor changes made
Distributional Matter Tensors in Relativity
Creators: name: Raju, C. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: This paper uses products of distributions to obtain new junction conditions for relativistic shocks. In general, the shock is accompanied by a surface layer, and the new conditions generalize both Taub's jump conditions for shocks, and those of Israel and Kuchar for surface layers. In the non-relativistic limit, the surface layer is present only when the fluid is viscous or thermally conducting--a situation where the classical Rankine-Hugoniot conditions do not apply. Thus, our conditions properly extend all previous conditions, and provide complete Cauchy data needed to solve the full Navier-Stokes equations downstream of the shock. Since the associative law fails for our product, the residual uncertainty regarding the association of factors must be eliminated empirically. This is equivalent to fixing the correct initial_form_ of the equations (such as the ``conservation form'' in the Euler case)
description: 3 pages
In Markov process, an extremal reversible measure is an extremal invariant measure.
Creators: name: Hiroki Yagisita
Publisher: name: Zenodo
Year: 2023

description: We consider a discrete-time temporally-homogeneous conservative Markov process. Ergodic theory of Markov process asserts that $m$ is an ergodic invariant probability measure if and only if $m$ is an extremal of the set of all invariant probability measures. On the other hand, Krein-Milman theorem asserts that a compact convex set in a Hausdorff locally-convex topological vector space is the closed convex hull of its extremals. In this paper, we show that extremality of reversible probability measure implies extremality of invariant probability measure. Using analogue of Dirichlet form, we modify a proof that in stochastic Ising model (Glauber dynamics), an extreme Gibbs state is an extreme invariant measure.
description: Japanese version available:
https://www.researchgate.net/publication/373111066