cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Shapley Value Based Multi-Agent Reinforcement Learning: Theory, Method and Its Application to Energy Network
Creators: name: Wang, Jianhong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Multiagent Systems (cs.MA)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Multi-agent reinforcement learning is an area of rapid advancement in artificial intelligence and machine learning. One of the important questions to be answered is how to conduct credit assignment in a multi-agent system. There have been many schemes designed to conduct credit assignment by multi-agent reinforcement learning algorithms. Although these credit assignment schemes have been proved useful in improving the performance of multi-agent reinforcement learning, most of them are designed heuristically without a rigorous theoretic basis and therefore infeasible to understand how agents cooperate. In this thesis, we aim at investigating the foundation of credit assignment in multi-agent reinforcement learning via cooperative game theory. We first extend a game model called convex game and a payoff distribution scheme called Shapley value in cooperative game theory to Markov decision process, named as Markov convex game and Markov Shapley value respectively. We represent a global reward game as a Markov convex game under the grand coalition. As a result, Markov Shapley value can be reasonably used as a credit assignment scheme in the global reward game. Markov Shapley value possesses the following virtues: (i) efficiency; (ii) identifiability of dummy agents; (iii) reflecting the contribution and (iv) symmetry, which form the fair credit assignment. Based on Markov Shapley value, we propose three multi-agent reinforcement learning algorithms called SHAQ, SQDDPG and SMFPPO. Furthermore, we extend Markov convex game to partial observability to deal with the partially observable problems, named as partially observable Markov convex game. In application, we evaluate SQDDPG and SMFPPO on the real-world problem in energy networks.
description: 206 pages
Cross-symmetry breaking of two-component discrete dipolar matter-wave solitons
Creators: name: Li, Yongyao
name: Fan, Zhiwei
name: Luo, Zhihuan
name: Liu, Yan
name: He, Hexiang
name: Lü, Jiantao
name: Xie, Jianing
name: Huang, Chunqing
name: Tan, Haishu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the spontaneous symmetry breaking of dipolar Bose--Einstein condensates trapped in stacks of two-well systems, which may be effectively built as one-dimensional trapping lattices sliced by a repelling laser sheet. If the potential wells are sufficiently deep, the system is modeled by coupled discrete Gross--Pitaevskii equations with nonlocal self- and cross-interaction terms representing dipole--dipole interactions. When the dipoles are not polarized perpendicular or parallel to the lattice, the cross-interaction is asymmetric, replacing the familiar symmetric two-component solitons with a new species of cross-symmetric or -asymmetric ones. The orientation of the dipole moments and the interwell hopping rate strongly affect the shapes of the discrete two-component solitons as well as the characteristics of the cross-symmetry breaking and the associated phase transition. The sub- and super-critical types of cross-symmetry breaking can be controlled by either the hopping rate between the components or the total norm of the solitons. The effect of the interplay between the contact nonlinearity and the dipole angle on the cross-symmetry breaking is also discussed.
description: 13 pages, 11 figures, 94 references
The scientific heritage of Richard Henry Dalitz, FRS (1925-2006)
Creators: name: Aitchison, Ian J. R.
name: Close, Frank E.
name: Gal, Avraham
name: Millener, D. John
Publisher: name: arXiv
Year: 2006
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Professor Richard H. Dalitz passed away on January 13, 2006. He was almost 81 years old and his outstanding contributions are intimately connected to some of the major breakthroughs of the 20th century in particle and nuclear physics. These outstanding contributions go beyond the Dalitz Plot, Dalitz Pair and CDD poles that bear his name. He pioneered the theoretical study of strange baryon resonances, of baryon spectroscopy in the quark model, and of hypernuclei, to all of which he made lasting contributions. His formulation of the "$θ-τ$ puzzle" led to the discovery that parity is not a symmetry of the weak interactions. A brief scientific evaluation of Dalitz's major contributions to particle and nuclear physics is hereby presented, followed by the first comprehensive list of his scientific publications, as assembled from several sources. The list is divided into two categories: the first, main part comprises Dalitz's research papers and reviews, including topics in the history of particle physics, biographies and reminiscences; the second part lists book reviews, public lectures and obituaries authored by Dalitz, and books edited by him. This provides the first necessary step towards a more systematic research of the Dalitz heritage in modern physics. The present 2016 edition updates the original 2006 edition, published in Nucl. Phys. A 771 (2006) 2-7, doi:10.1016/j.nuclphysa.2006.03.007, and 8-25, doi:10.1016/j.nuclphysa.2006.03.008, by including for the first time a dozen or so of publications, found recently in a list submitted to the Royal Society by Dalitz in 2004, that escaped our attention in the original version.
description: updates the original edition by including several publications, mostly in category III, that were unknown to us in 2006
Mott transition in the Hubbard model away from particle-hole symmetry
Creators: name: Garcia, D. J.
name: Miranda, E.
name: Hallberg, K.
name: Rozenberg, M. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We solve the Dynamical Mean Field Theory equations for the Hubbard model away from the particle-hole symmetric case using the Density Matrix Renormalization Group method. We focus our study on the region of strong interactions and finite doping where two solutions coexist. We obtain precise predictions for the boundaries of the coexistence region. In addition, we demonstrate the capabilities of this precise method by obtaining the frequency dependent optical conductivity spectra.
description: 4 pages, 4 figures; updated version
UQ's Long Term Storage Journey: Co-design, value, risk and balance.
Creators: name: Carroll, Jake
Publisher: name: Zenodo
Year: 2023

description: In 2019, the University of Queensland needed to decide on what its long term research data storage strategy would look like for the next several years. Separate from but integrated with UQ's now successful research data storage fabric strategy, this project was about the long term preservation layer.

With an ageing platform that had been in place for around ten years (HPE's DMF6), approaching scalability limits, UQ had to make architecture, design and strategy decisions that would carry the organisation for another ten years or more.

UQ eventually chose to implement HPE's DMF7. This choice was informed by an in-place migration path rather than a manual copy, that a co-design possibility existed between UQ and HPE, and that, in UQ's view, the natural end of POSIX based filesystem representations for mass archive tasks was close.

The task ahead of UQ and HPE was to migrate ~4.8 billion objects over the Christmas and New Years eve period rolling into 2020. Once complete, UQ and HPE needed to find a way to migrate out of legacy tape and filesystem storage technologies in an expedient way, to mitigate further risks.

The outputs of these tasks was a system that UQ and HPE co-designed in order to meet requirements, creating value for researchers. This presentation details the complexities, challenges, the value proposition and the strategy of risk management in order to balance cutting edge product and design with the most critical data assets of an organisation.
Annihilation Poles for Form Factors in XXZ Model
Creators: name: Pakuliak, S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The annihilation poles for the form factors in XXZ model are studied using vertex operators introduced in \cite{DFJMN}. An annihilation pole is the property of form factors according to which the residue of the $2n$-particle form factor in such a pole can be expressed through linear combination of the $2n-2$-particle form factors. To prove this property we use the bosonization of the vertex operators in XXZ model which was invented in \cite{JMMN}.
description: 15 pages, LATeX, RIMS-933
Algeri 1541: problemi di pianificazione strategica di un disastro annunciato
Creators: name: Pacini, Arturo
Publisher: name: Zenodo
Year: 2019
Subjects: Charles V
Süleiman the Magnificent
Andrea Doria
Francisco Duarte
Algiers Expedition
Strategy

description: The present contribution focusses on the process of consultation and decision-making that in 1541 led to Charles V’s carrying out an amphibious attack, which ended in disaster, against Algiers. On the basis of the documentation analyzed, the most relevant variable turns out to be the ‘human factor’, in the persons of Charles V, Andrea Doria, and a less well known but very interesting figure, the proveedor general of the armada Francisco Duarte. Between May and August 1541 there was a kind of blackout in the communications between the emperor and his admiral. They both held stubbornly to their views, which were antithetical, and they refused to speak out to each other frankly. Duarte tried to mediate, telling Doria in person and Charles by letter what the two refused to write in their correspondence. Doria was strongly against the Algiers expedition, which he considered inopportune in the geopolitical and military context of that year. Charles V thought, instead, it was the only way he could save his honour since he was avoiding dealing personally with Süleiman the Magnificent’s invasion of Hungary. The result was a seriously dysfunctional decisional process. Aside from the inherent factors of uncertainty in any military operation, a very difficult challenge was undertaken on the wrong foot.
Evaluation and Impact of Anti-Tuberculosis Drug : A Review
Creators: name: HK Garg
name: Shrivastava, Ashish
Publisher: name: figshare
Year: 2018
Subjects: Biotechnology

description: Since the time of discovery of Mycobacterium tuberculosis as an agent causing tuberculosis , permanent eradication of this disease has been a cause of concern. Although a large number of drugs exit for the treatment of tuberculosis, 1.7 million people still die every year from this infection. Isoniazid and rifampin are effective anti-tuberculosis drugs only for the standard treatment of TB. Multidrug-resistant tuberculosis bacillus developed resistance against isoniazid and rifampin, therefore complicated problems came forward in treatment of MDR-TB due to which second line anti-tuberculosis drug like fluoro-quinolone has invented. Recently an extensively drug-resistant (XDR) strain of M.tuberculosis had observed which has developed resistance against isoniazid, rifampin fluoroquinolone and an aminoglycoside. XDR-TB is the most severe form of tuberculosis, against which no effective drug has been registered till now. Although a new generation TBK-613 of fluoroquinolone is on medical trial for the treatment of this severe form of tuberculosis.
Simulation of phase transitions in highly asymmetric fluid mixtures
Creators: name: Liu, Jiwen
name: Wilding, Nigel B.
name: Luijten, Erik
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a novel method for the accurate numerical determination of the phase behavior of fluid mixtures having large particle size asymmetries. By incorporating the recently developed geometric cluster algorithm within a restricted Gibbs ensemble, we are able to probe directly the density and concentration fluctuations that drive phase transitions, but that are inaccessible to conventional simulation algorithms. We develop a finite-size scaling theory that relates these density fluctuations to those of the grand-canonical ensemble, thereby enabling accurate location of critical points and coexistence curves of multicomponent fluids. Several illustrative examples are presented.
description: Accepted for publication in Physical Review Letters
Research Infrastructure for the Social Sciences - the next ten years
Creators: name: Lawrence, Amanda
Publisher: name: Zenodo
Year: 2023

description: In 2023 the Academy of the Social Sciences in Australia  (ASSA) has been working on a Decadal Plan for national research infrastructure (NRI), identified as a priority for the social sciences research sector in the 2022 report Australia's Data-Enabled Research Future: The Social Sciences (ACOLA and ASSA, 2022). The aim of the decadal plan is to build sector-wide consensus around the research capabilities required for social science and humanities related research over the next 10 years. The project involved a stocktake of existing research infrastructure across the higher education, government, commercial and GLAM sectors, and consultation on the emerging data, infrastructure, workforce and governance needs and models that could best work for the sector. In this BoF, we would like to present the findings to the eResearch community and get feedback on the proposed strategies.
The BoF will cover:
- The value of social systems thinking for national challenges across a range of disciplines
- The kinds of platforms, capabilities, tools, data and standards social scientists will need over the next years
- The various governance and funding models that may be best suited to support and deliver national research infrastructures
- The skills and training required for the Australian researcher workforce to use those infrastructures
- The case for investing in NRI for social science challenges and the benefits for Australian social and economic wellbeing.
Please join us for a lively discussion as we consider next steps for Social Science research infrastructure.
Solutions of Conformal Turbulence on a Half Plane
Creators: name: Chung, B. K.
name: Nam, Soonkeon
name: Park, Q-Han
name: Shin, H. J.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Exact solutions of conformal turbulence restricted on a upper half plane are obtained. We show that the inertial range of homogeneous and isotropic turbulence with constant enstrophy flux develops in a distant region from the boundary. Thus in the presence of an anisotropic boundary, these exact solutions of turbulence generalize Kolmogorov's solution consistently and differ from the Polyakov's bulk case which requires a fine tunning of coefficients. The simplest solution in our case is given by the minimal model of $p=2, q=33$ and moreover we find a fixed point of solutions when $p,q$ become large.
description: 10pages, KHTP-93-07, SNUCTP-93-37
A Quantum-Classical Collaborative Training Architecture Based on Quantum State Fidelity
Creators: name: L'Abbate, Ryan
name: D'Onofrio, Anthony
name: Stein, Samuel
name: Chen, Samuel Yen-Chi
name: Li, Ang
name: Chen, Pin-Yu
name: Chen, Juntao
name: Mao, Ying
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recent advancements have highlighted the limitations of current quantum systems, particularly the restricted number of qubits available on near-term quantum devices. This constraint greatly inhibits the range of applications that can leverage quantum computers. Moreover, as the available qubits increase, the computational complexity grows exponentially, posing additional challenges. Consequently, there is an urgent need to use qubits efficiently and mitigate both present limitations and future complexities. To address this, existing quantum applications attempt to integrate classical and quantum systems in a hybrid framework. In this study, we concentrate on quantum deep learning and introduce a collaborative classical-quantum architecture called co-TenQu. The classical component employs a tensor network for compression and feature extraction, enabling higher-dimensional data to be encoded onto logical quantum circuits with limited qubits. On the quantum side, we propose a quantum-state-fidelity-based evaluation function to iteratively train the network through a feedback loop between the two sides. co-TenQu has been implemented and evaluated with both simulators and the IBM-Q platform. Compared to state-of-the-art approaches, co-TenQu enhances a classical deep neural network by up to 41.72% in a fair setting. Additionally, it outperforms other quantum-based methods by up to 1.9 times and achieves similar accuracy while utilizing 70.59% fewer qubits.
description: IEEE Transactions on Quantum Engineering
2014 European School of High-Energy Physics
Creators: name: Mulders, M.
name: Zanderighi, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The European School of High-Energy Physics is intended to give young physicists an introduction to the the- oretical aspects of recent advances in elementary particle physics. These proceedings contain lecture notes on the theory of quantum chromodynamics, Higgs physics, Flavour physics and CP violation, and Supersymmetry.
description: 4 lectures, 123 pages, published as CERN Yellow Report at this url:
Transport properties of ultrathin BaFe1.84Co0.16As2 superconducting nanowires
Creators: name: Yuan, Pusheng
name: Xu, Zhongtang
name: Li, Chen
name: Quan, Baogang
name: Li, Junjie
name: Gu, Changzhi
name: Ma, Yanwei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconducting nanowire single-photon detectors (SNSPDs) have an absolute advantage over other types of single photon detectors except the low operating temperature. Therefore, many efforts have been devoted to find high-temperature superconducting materials that are suitable for preparing SNSPDs. Copper-based and MgB2 ultra-thin superconducting nanowires have been already reported. However, the transport properties of iron-based ultra-thin superconducting nanowires have not been studied. In this work, a 10 nm thick 200 nm wide 30 μm long high quality superconducting nanowire was fabricated from ultrathin BaFe1.84Co0.16As2 films by a lift-off process. The precursor BaFe1.84Co0.16As2 film with a thickness of 10 nm and root-mean-square roughness of 1 nm was grown on CaF2 substrates by pulsed laser deposition. The nanowire shows a high superconducting critical temperature Tzero c=20 K with a narrow transition width of Delta T=2.5 K and exhibits a high critical current density Jc of 1.8E7 A/cm2 at 10 K. These results of ultrathin BaFe1.84Co0.16As2 nanowire will attract interest in electronic applications, including SNSPDs
description: 18 pages, 6figures
Vox absentiae: tracce di un archivio conventuale disperso e distrutto. Santa Maria delle Grazie di Bergamo (OFM Obs.)
Creators: name: Pantarotto, Martina
Publisher: name: Zenodo
Year: 2019
Subjects: Franciscan Convents of the Observance
Conventual
Franciscan Archives
Bergamo
Santa Maria delle Grazie
Donations to the Franciscans
Notaries
Legacies and Wills

description: The ancient archive of the convent of Santa Maria delle Grazie in Bergamo, of the Order of Friars Minor of the Observance, is now lost. The contribution presents the founding act of the convent, dating back to 1422, but survived only in the modern transcription of an authentic copy of the end of the XVth Century or the beginning of the XVIth Century. The persons named are traced in the documents, in particular the notary of the original act and the notary of the certified copy. Finally, a testament of 1474 by a young Bergamasco about to enter the order, right in the convent ‘delle Grazie’, is illustrated.
Regular Spectra and Universal Directionality of Emitted Radiation from a Quadrupolar Deformed Microcavity
Creators: name: Shim, Jeong-Bo
name: Lee, Hai-Woong
name: Lee, Sang-Bum
name: Yang, Juhee
name: Moon, Songki
name: Lee, Jai-Hyung
name: An, Kyungwon
name: Kim, Sang Wook
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We have investigated quasi-eigenmodes of a quadrupolar deformed microcavity by extensive numerical calculations. The spectral structure is found to be quite regular, which can be explained on the basis of the fact that the microcavity is an open system. The far-field emission directions of the modes show unexpected similarity irrespective of their distinct shapes in phase space. This universal directionality is ascribed to the influence from the geometry of the unstable manifolds in the corresponding ray dynamics.
description: 10 pages 11 figures
CAS - CERN Accelerator School: Plasma Wake Acceleration
Creators: name: Holzer, Bernhard
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: These proceedings are of interest to staff and students in accelerator laboratories, university departments and companies working in or having an interest in the field of new acceleration techniques. Following introductory lectures on plasma and laser physics, the course covers the different components of a plasma wake accelerator and plasma beam systems. Topical seminars and an overview about alternative new techniques like dielectric accelerators are included. Lectures on the experimental studies and their latest results, on diagnostic tools and state of the art wake acceleration facilities, both present and planned, complement the theoretical part.
description: 15 lectures, 308 pages, published as CERN Yellow Report a this url:
Andrographolide Induced Succinate Dehydrogenase Activity in Isolated Mitochondrial Fractions
Creators: name: HK Garg
name: Shrivastava, Ashish
Publisher: name: figshare
Year: 2018
Subjects: Biotechnology

description: Andrographolide, a bicyclic diterphenoid lactose, extracted from a plant, Andrographis paniculata, is known for its multiple clinical applications in traditional Siddha and Ayurvedic systems in India. Its therapeutic value is perhaps by virtue of its mechanism of action through enzyme induction. The present study is aimed to determine the effects of andrographolide on succinate dehydrogenase (SDH) activity, in vitro, using mitochondrial fractions isolated from different organs of BALB/c mice.Administration of andrographolide into mitochondrial fraction of liver, lung and kidney resulted in the induction of SDH. Mitochondrial fraction of lung tissues indicated the maximum SDH acceleratory activity (68.19%) , in vitro, against 50 μ g/ml concentration of andrographolide.
Quantum fluids of self-assembled chains of polar molecules
Creators: name: Wang, Daw-Wei
name: Lukin, Mikhail D.
name: Demler, Eugene
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We study polar molecules in a stack of strongly confined pancake traps. When dipolar moments point perpendicular to the planes of the traps and are sufficiently strong, the system is stable against collapse but attractive interaction between molecules in different layers leads to the formation of extended chains of molecules, analogously to the chaining phenomenon in classical rheological electro- and magnetofluids. We analyze properties of the resulting quantum liquid of dipolar chains and show that only the longest chains undergo Bose-Einstein condensation with a strongly reduced condensation temperature. We discuss several experimental methods for studying chains of dipolar molecules.
description: 4 pages and 3 figures, final version as published
Effect of temperature and copper doping on the heterogeneous Fenton-like activity of Cu$_x$Fe$_{3-x}$O$_4$ nanoparticles
Creators: name: Nuñez, Nahuel
name: Lima, Enio
name: Mansilla, Marcelo Vásquez
name: Goya, Gerardo F.
name: Gallo-Cordova, Álvaro
name: Morales, María del Puerto
name: Winkler, Elin L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Ferrite nanoparticles serve as potent heterogeneous Fenton-like catalysts, producing reactive oxygen species (ROS) for decomposing organic pollutants. We investigated the impact of temperature and copper content on the catalytic activity of nanoparticles with different oxidation states of iron. Via solvothermal synthesis, we fabricated copper-doped magnetite (Cu$_x$Fe$_{3-x}$O$_4$) with a Fe$^{2+}$/Fe ratio ~0.33 for the undoped system. Using a microwave-assisted method, we produced copper-doped oxidized ferrites, yielding a Fe$^{2+}$/Fe ratio of ~0.11 for the undoped nanoparticles. The ROS generated by the catalyst were identified and quantified by electron paramagnetic resonance, while optical spectroscopy allowed us to evaluate its effectiveness for the degradation of a model organic dye. At room temperature, the magnetite nanoparticles exhibited the most $\cdot$OH radical production and achieved almost 90% dye discoloration in 2 hours. This efficiency decreased with increasing Cu concentration, concurrently with a decrease in $\cdot$OH generation. Conversely, above room temperature, Cu-doped nanoparticles significantly enhance the dye degradation, reaching 100% discoloration at 90$^\circ$C. This enhancement is accompanied by a systematic increase in the kinetic constants, obtained from reaction equations, with Cu doping. This study highlights the superior stability and high-temperature catalytic advantages of copper ferrite holding promise for enhancing the performance of nanocatalysts for decomposing organic contaminants.
description: 40 pages, 11 figures
L''altra' biblioteca Durazzo: un catalogo (quasi) sconosciuto
Creators: name: Petrucciani, Alberto
Publisher: name: Zenodo
Year: 2019
Subjects: Durazzo Library
Durazzo Family
Private Libraries

description: The British Library in London holds a manuscript classed catalogue of the library of Marcello Durazzo, nephew and heir of Doge Girolamo. The catalogue was listed since 1864 in the printed catalogue of acquisitions of the Department of Manuscripts of the British Museum, but never noticed and analyzed in the studies on the libraries of the Genoese noble family. The catalog was sent to Frederick North, 5th Earl of Guilford, probably between 1820 and 1823, along with the library’s purchase offer that, however, did not take place. It was compiled, apparently, on the basis of the library’s original classed catalogue, now lost, and reflects the content of the library after the creation of a separate section of illustrated books, annexed to the collection of prints of Count Giacomo Durazzo, and before the sale of the palace to the Royal family in 1824. The descriptive report on the library, which precedes the catalogue, and the index of subjects are published in the appendix.
Some Issues In The Loop Variable Approach to Open Strings and an Extension to Closed Strings
Creators: name: Sathiapalan, B.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Some issues in the loop variable renormalization group approach to gauge invariant equations for the free fields of the open string are discussed. It had been shown in an earlier paper that this leads to a simple form of the gauge transformation law. We discuss in some detail some of the curious features encountered there. The theory looks a little like a massless theory in one higher dimension that can be dimensionally reduced to give a massive theory. We discuss the origin of some constraints that are needed for gauge invariance and also for reducing the set of fields to that of standard string theory. The mechanism of gauge invariance and the connection with the Virasoro algebra is a little different from the usual story and is discussed. It is also shown that these results can be extended in a straightforward manner to closed strings.
description: 24 pages
Allicin as Dermal Antibiotic against Microbial Infections
Creators: name: Shrivastava, Ashish
name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: Biotechnology

description: The present study aims to assess the antibacterial potential of allicin against 04 Gram-positive bacterial strains viz. Staphylococcus saprophyticus, Staphylococcus epidermis, Staphylococcus aureus, Streptococcus pyogenes and 04 Gram-negative stains-Proteus mirabilis, Proteus vulgaris, Klebsiella pneumoniae, Neisseria meningitis, using the Disc Diffusion Method at three concentration; 100, 200 and 300µg/ml respectively in order to treat dermal infections. The results depicted significant antibacterial activity of allicin against both the Gram-positive and Gram-negative bacterial strains. The highest antibacterial activity was noted against Neisseria meningitis at 300µg/ml (87 ± 3.5%) and the lowest activity was observed against Proteus vulgaris at 300µg/ml (33 ± 2.9%). The Minimum Inhibitory Concentration (MIC) vacillated between 100µg/ml and 200µg/ml depending on the type of microorganism. The results indicated allicin to be an extremely promising herbal medicine for the treatment of dermal infections caused by pathogenic bacterial strains.
In the IRISS pipeline: A curation tool for integrated data risk assessment
Creators: name: Perry, Ryan
Publisher: name: Zenodo
Year: 2023

description: The Integrated Research Infrastructure for Social Science (IRISS) Project will enable social science researchers to create, disseminate, integrate, and utilise data sources to generate new insights. A challenge for the project is to ensure data privacy throughout these data sharing and access activities.

The Australian Data Archive (ADA) has developed a data risk assessment tool based on established archival processes for preparing and sharing social science data. This includes assessment of risk common to both data integration and panel designs in which linkage of survey responses is difficult to anticipate. Integrated data requires stringent de-identification to reduce the added risk of re-identification through combining data from different sources.

In this presentation we will briefly outline the ADA data risk assessment tool developed with R Shiny. The tool can aid users to identify both sensitive and identifying data, and provides recommendations to reduce risk.

The risk assessment tool will be integrated in the IRISS project curation pipelines, helping to ensure research-ready versions of data are sufficiently de-identified before release. When identification risk is present, the tool will guide users through appropriate modifications to the data that might include aggregation into broader categories, or k-anonymisation of unique response combinations. The tool is both a technical and educational resource designed for a wide community of users to safely and effectively engage with IRISS.

This presentation is intended to be delivered as a part of a session on the IRISS project.
Structure of Peer-to-Peer Social Networks
Creators: name: Wang, Fang
name: Moreno, Yamir
name: Sun, Yaoru
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: This paper presents a statistical analysis of the structure of Peer-to-Peer (P2P) social networks that captures social associations of distributed peers in resource sharing. Peer social networks appear to be mainly composed of pure resource providers that guarantee high resource availability and reliability of P2P systems. The major peers that both provide and request resources are only a small fraction. The connectivity between peers, including undirected, directed (out and in) and weighted connections, is scale-free and the social networks of all peers and major peers are small world networks. The analysis also confirms that peer social networks show in general disassortative correlations, except that active providers are connected between each other and by active requesters. The study presented in this paper gives a better understanding of peer relationships in resource sharing, which may help a better design of future P2P networks and open the path to the study of transport processes on top of real P2P topologies.
description: APS Style, 8 pages, 5 figures and 4 tables. Final version
An Empirical Technique to Resolve Banding Sequences in Avian Chromosomes
Creators: name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: Banding techniques are useful for marking specific regions of chromosomes, which otherwise exhibit morphological resemblances to a certain extent. C-banding, commonly called constitutive heterochromatin, is frequently used as an approach to resolve variations in terms of amount and distribution of heterochromatin among phylogenetically unrelated species. Another pattern i.e. G-banding is believed to mark the regions rich in guanine and cytosine that replicate DNA early in the synthesis phase of cell cycle. In the present communication, a simple technique has been described, to demonstrate banding sequences, conveniently by stressing chromosomal squash with an alkali, followed by saline treatment (C-band). G-bands can be obtained by exposing metaphase plates to trypsin for a controlled time period before staining with Giemsa-buffer solution. Certain measures have been taken to overcome difficulties, that generally arise, in demonstration of chromosomal bands.
Characterizations of generalized Robertson-Walker spacetimes concerning gradient solitons
Creators: name: De, Krishnendu
name: Khan, Mohammad Nazrul Islam
name: De, Uday Chand
Publisher: name: arXiv
Year: 2024
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this article, we examine gradient type Ricci solitons and $(m,τ)$-quasi Einstein solitons in generalized Robertson-Walker ($GRW$) spacetimes. Besides, we demonstrate that in this scenario the $GRW$ spacetime presents the Robertson-Walker ($RW$) spacetime and the perfect fluid ($PF$) spacetime presents the phantom era. Consequently, we show that if a $GRW$ spacetime permits a gradient $τ$- Einstein solitons, then it also represents a $PF$ spacetime under certain condition.
Tomaso Campofregoso, uomo di cultura, bibliofilo, mecenate
Creators: name: Petti Balbi, Giovanna
Publisher: name: Zenodo
Year: 2019
Subjects: Campofregosos (Families)
Dynastic Projects
Cultural Humus
Epistolaries
Manuscripts
Genoa
XVth Century

description: This paper summarises a chapter of a book-in-progress about Tomaso Campofregoso, skillful doge of Genoa, and describes both his convinced contribution to Italian Humanism, aiming to draw a dynastic project and a consequent Principato among political and cultural instances, and Genoese cultural humus among 14th and 15th centuries.
Ionization potential depression and optical spectra in a Debye plasma model
Creators: name: Lin, Chengliang
name: Röpke, Gerd
name: Reinholz, Heidi
name: Kraeft, Wolf-Dietrich
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We show how optical spectra in dense plasmas are determined by the shift of energy levels as well as the broadening owing to collisions with the plasma particles. In lowest approximation, the interaction with the plasma particles is described by the RPA dielectric function, leading to the Debye shift of the continuum edge. The bound states remain nearly un-shifted, their broadening is calculated in Born approximation. The role of ionization potential depression as well as the Inglis-Teller effect are shown. The model calculations have to be improved going beyond the lowest (RPA) approximation when applying to WDM spectra.
Derivation of Displacement and Stress Fields from Effect of surface bending and stress on the transmission of line force to an elastic substrate
Creators: name: Hui, Chung Yuen
name: Zezhou Liu
name: Jagota, Anand
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: Mechanics
subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: Derivation of displacement and stress Fields by a stream function
Using Machine Learning to Replicate Chaotic Attractors and Calculate Lyapunov Exponents from Data
Creators: name: Pathak, Jaideep
name: Lu, Zhixin
name: Hunt, Brian R.
name: Girvan, Michelle
name: Ott, Edward
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We use recent advances in the machine learning area known as 'reservoir computing' to formulate a method for model-free estimation from data of the Lyapunov exponents of a chaotic process. The technique uses a limited time series of measurements as input to a high-dimensional dynamical system called a 'reservoir'. After the reservoir's response to the data is recorded, linear regression is used to learn a large set of parameters, called the 'output weights'. The learned output weights are then used to form a modified autonomous reservoir designed to be capable of producing arbitrarily long time series whose ergodic properties approximate those of the input signal. When successful, we say that the autonomous reservoir reproduces the attractor's 'climate'. Since the reservoir equations and output weights are known, we can compute derivatives needed to determine the Lyapunov exponents of the autonomous reservoir, which we then use as estimates of the Lyapunov exponents for the original input generating system. We illustrate the effectiveness of our technique with two examples, the Lorenz system, and the Kuramoto-Sivashinsky (KS) equation. In particular, we use the Lorenz system to show that achieving climate reproduction may require tuning of the reservoir parameters. For the case of the KS equation, we note that as the system's spatial size is increased, the number of Lyapunov exponents increases, thus yielding a challenging test of our method, which we find the method successfully passes.
Magnetic Excitations of Coupled Spin Ladders: a Quantum Monte Carlo Study
Creators: name: Andersen, Brian M.
name: Syljuasen, Olav F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We calculate the magnetic excitation spectrum in the stripe phase of high-T_c materials. The stripes are modeled as coupled spin-1/2 ladders and the spin dynamics is extracted using Quantum Monte Carlo (QMC) simulations, which can capture the strong quantum fluctuations near quantum critical points of coupled spin ladders. We find a characteristic hourglass magnetic excitation spectrum with high-energy peaks rotated by 45 degrees compared to the incommensurate low-energy peaks in good agreement with the experimental data. The excitations are investigated quantitatively as a function of interladder coupling, ladder width, and domain formation with stripe disorder.
description: 4 pages, 5 figures (fig. 5 replaced)
Grandi porti e scali minori del Mediterraneo in età moderna: fattori competitivi e reti commerciali
Creators: name: Piccinno, Luisa
Publisher: name: Zenodo
Year: 2019
Subjects: Ports
Mercantile Networs
Nodal Points
Genoa
Tabarka

description: In Early Modern Age many port cities became nodal points of commercial networks that included both the sea and the land thanks to their vitality and the economic relations of their inhabitants. This phenomenon involved the big ports of the Mediterranean Sea, the ones of the Northern Europe and the small moorings, whose activity was strictly depending and linked to the formers. For this reason, both the main traffic routes and the local ones are important, as far as the connection between international and local trade. The main purpose of this paper is to investigate the function of the ports as pole of attraction of goods, people and capital, in order to classify them according to their characters and their role in the merchant network through the analysis of some significant case studies.
Empowering EDIHs: Exploring AgrifoodTEF Services, Infrastructure & Collaboration in Austria, Denmark and Italy
Creators: name: Riautschnig, Cornelius
name: Scovill, Alea Louise
name: Corona, Edorado
name: Marijke, Hunninck
name: Giuffrida, Rita
Publisher: name: Zenodo
Year: 2025
Subjects: agrifoodTEF
agrifood
agritech
agriculture
webinar
farm

description: This presentation of the session takes the opportunity to delve deeper into the services provided by agrifoodTEF. This event represents a follow-up webinar of the one held on 7 February 2025. During this event, the attendees could an learn more about the organisation and role of the nodes that bring the agrifoodTEF mission to reality. More specifically, the participants can take a look at the nodes located in Austria, Danmark and Italy explaining their capabilities, services and contact options. At the end of the session, participants have an understanding of the network of physical and digital facilities across Europe that make up the agrifoodTEF project, which not only stand out because of the help they provide to assess and validate third-party Al and Robotics solutions in real-world conditions, but also because they are renowned for their excellence and expertise in digital innovation applied to the agrifood sector.
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Cart. 168 (11 H 66), f. 0098v
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2010
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0098v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0098v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
Cooperatives' Position in the Potato Industry
Creators: name: Biggs, Gilbert W.
name: Biggs, Gilbert W.
Publisher: name: Unknown
Year: 1985
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Potatoes
subject: cooperatives
subject: bargaining
subject: marketing

description: Potato bargaining cooperatives representing more than 3,000 growers bargain for nearly 60 percent of the United States processed potato crop. Potato marketing cooperatives serving more than 2,500 growers in all crop areas handle 8 percent of the fresh tablestock, 8 percent of the seed potatoes, and 5 percent of the chipping potatoes. Important interests of bargaining associations are stronger bargaining legislation and greater grower commitment. Important concerns of marketing associations are industry instability and improved quality control.
Towards Spectroscopically Detecting the Global Latitudinal Temperature Variation on the Solar Surface
Creators: name: Takeda, Y.
name: UeNo, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A very slight rotation-induced latitudinal temperature variation (presumably on the order of several Kelvin) on the solar surface is theoretically expected. While recent high-precision solar brightness observations reported its detection, confirmation by an alternative approach using the strengths of spectral lines is desirable, for which reducing the noise due to random fluctuation caused by atmospheric inhomogeneity is critical. Towards this difficult task, we carried out a pilot study of spectroscopically investigating the relative variation of temperature (T) at a number of points in the solar circumference region near to the limb (where latitude dependence should show up if any exists) based on the equivalent widths (W) of 28 selected lines in the 5367--5393A and 6075--6100A regions. Our special attention was paid to i) clarifying which kind of lines should be employed and ii) how much precision would be accomplished in practice. We found that lines with strong T-sensitivity (|log W/log T|) should be used and that very weak lines should be avoided because they inevitably suffer large relative fluctuations (Delta_W/W). Our analysis revealed that a precision of Delta_T/T ~ 0.003 (corresponding to ~15K) can be achieved at best by a spectral line with comparatively large |log W/log T|, though this can possibly be further improved if other more suitable lines are used. Accordingly, if many such favorable lines could be measured with sub-% precision of Delta_W/W and by averaging the resulting Delta_T/T from each line, the random noise would eventually be reduced down to
description: 28 pages, 12 figures, 1 table, accepted for publication in Solar Physics
title: ADCO, Cartulaire des Dominicains de Dijon (1286), Cart. 221 (H 53), 170 folios, f. 0183
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: cartulaire
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire des Dominicains de Dijon (1286), Archives départementales de la Côte-d'Or, Cart. 221 (H 53), 170 folios. Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire des Dominicains de Dijon (1286), Archives départementales de la Côte-d'Or, Cart. 221 (H 53), 170 folios, f. 0183, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: Dijon
description: Provenance: http://www.wikidata.org/entity/Q7003
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb15250518p
description: Provenance: http://www.idref.fr/02643413X/id
description: Provenance: https://www.geonames.org/6453767