cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Topological metals induced by Zeeman effect
Creators: name: Sun, Song
name: Song, Zhida
name: Weng, Hongming
name: Dai, Xi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the present paper, we propose a new way to classify centrosymmetric metals by studying the Zeeman effect caused by an external magnetic field described by the momentum dependent g-factor tensor on the Fermi surfaces. Nontrivial U(1) Berry's phase and curvature can be generated once the otherwise degenerate Fermi surfaces are splitted by the Zeeman effect, which will be determined by both the intrinsic band structure and the structure of g-factor tensor on the manifold of the Fermi surfaces. Such Zeeman effect generated Berry's phase and curvature can lead to three important experimental effects, modification of spin-zero effect, Zeeman effect induced Fermi surface Chern number and the in-plane anomalous Hall effect. By first principle calculations, we study all these effects on two typical material, ZrTe$_5$ and TaAs$_2$ and the results are in good agreement with the existing experiments.
description: 10 pages, 6 figures
Composing Quantum Algorithms
Creators: name: Jeffery, Stacey
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Composition is something we take for granted in classical algorithms design, and in particular, we take it as a basic axiom that composing ``efficient'' algorithms should result in an ``efficient'' algorithm -- even using this intuition to justify our definition of ``efficient.'' Composing quantum algorithms is a much more subtle affair than composing classical algorithms. It has long been known that zero-error quantum algorithms \emph{do not} compose, but it turns out that, using the right algorithmic lens, bounded-error quantum algorithms do. In fact, in the bounded-error setting, quantum algorithms can even avoid the log factor needed in composing bounded-error randomized algorithms that comes from amplifying the success probability via majority voting. In this article, aimed at a general computer science audience, we try to give some intuition for these results: why composing quantum algorithms is tricky, particularly in the zero-error setting, but why it nonetheless works \emph{better} than classical composition in the bounded-error setting.
description: This article appears as the December 2024 Complexity Theory Column in SIGACT News
title: The Challenges of collaboration and democratic participation in turbulent and unsettled times
Creators: name: Watson, Sophie
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018
Subjects: democratic participation; unsettled; conflict;

description: This paper proposes new key ways to thinking about self-organisation in cities in what, I suggest, are increasingly unsettled and turbulent times. The importance of thinking about self-organisation in cities is all the more salient in the current economic and social context where in many parts of the world there is a withdrawal by the state from public involvement and expenditure, which is impacting on urban citizens, particularly those who are vulnerable, in increasing negative ways. Self-organisation is thus an important and key direction for the future, if cities are to remain inclusive, just and responsive to local needs. Yet such self-organisation can only be truly meaningful and effective if it is conducted collaboratively and democratically, involving as many people as possible, particularly those whose voices are not often heard. In so doing, it is also important to recognise that such involvement and democratic participation is not always consensual; rather conflict is inevitable and potentially positive, as people learnt to recognises their differences which are often implicated in power, and to negotiate solutions together.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 3 (2018): Spazi che abilitano/ Enabling Space
New observables in longitudinal single-spin asymmetries in semi-inclusive DIS
Creators: name: Bacchetta, Alessandro
name: Mulders, Piet J.
name: Pijlman, Fetze
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze longitudinal beam and target single-spin asymmetries in semi-inclusive deep inelastic scattering and in jet deep inelastic scattering, including all possible twist-3 contributions as well as quark mass corrections. We take into account the path-ordered exponential in the soft correlators and show that it leads to the introduction of a new distribution and a new fragmentation function contributing to the asymmetries.
description: 8 pages
Brand Intelligence Analytics
Creators: name: Colladon, A. Fronzetti
name: Grippa, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Computation and Language (cs.CL)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Leveraging the power of big data represents an opportunity for brand managers to reveal patterns and trends in consumer perceptions, while monitoring positive or negative associations of the brand with desired topics. This chapter describes the functionalities of the SBS Brand Intelligence App (SBS BI), which has been designed to assess brand importance and provides brand analytics through the analysis of (big) textual data. To better describe the SBS BI's functionalities, we present a case study focused on the 2020 US Democratic Presidential Primaries. We downloaded 50,000 online articles from the Event Registry database, which contains both mainstream and blog news collected from around the world. These online news articles were transformed into networks of co-occurring words and analyzed by combining methods and tools from social network analysis and text mining.
title: Acute exercise impacts AhR and PD-1 levels of CD8+ T-cells
title: Exploratory results from a randomized cross-over trial comparing endurance versus resistance exercise
titleType: AlternativeTitle
Creators: name: Schenk, Alexander
name: Joisten, Niklas
name: Walzik, David
name: Koliamitra, Christina
name: Schoser, Daria
name: Bloch, Wilhelm
name: Zimmer, Philipp
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: Acute exercise
subject: T-cell
subject: AhR
subject: PD-1
subject: Kynurenine
subject: 796
subject: Kynurenin

description: Purpose: The programmed cell death protein 1 (PD-1) has become a promising target in cancer immunotherapy. PD-1 expression of CD8+ T-cells may be increased via the exploitation of aryl hydrocarbon receptor (AhR) signaling with kynurenine (KYN) as a ligand. Since exercise affects KYN metabolism, we exploratory investigated the influence of acute exercise bouts on AhR and PD-1 levels of CD8+ T-cells. Method: In this study, 24 healthy males (age: 24.6 ± 3.9 years; weight 83.9 ± 10.5 kg; height: 182.4 ± 6.2 cm) completed a single bout of endurance (EE) and resistance exercise (RE) in a randomly assigned order on separate days. Blood samples were drawn before (t0), after (t1), and 1 h after (t2) both conditions. T-cell populations, the level of cytoplasmic AhR, and surface PD-1 were assessed by flow cytometry. Results: T-cell populations changed over time, indicated by an increase in the absolute numbers of CD3+ lymphocytes after EE (p
description: Eur J Appl Physiol;121
title: Searching for an "enabling" space. Dialogues and bridges between institutions and self-organization practices for a collaborative territorial planning and management
Creators: name: Goni Mazzitelli, Adriana
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018
Subjects: self-organization practices; collaborative territorial planning;

description: This Tracce Urbane issue takes inspiration from the International Conference Cities and Self-Organization, hold on December 2017 in Rome, Italy, in collaboration with Sapienza University of Rome and the AESOP – Association of European Schools of Planning. The seminar aim was to contribute to the debate on the conceptualization and experiences of self-organization in the history of planning theory and in contemporary practises. We introduce here some relevant statements emerging from the debate and some interesting connections between the several contributions, focusing on the central theme, among the urban self-organization debate, of what we called a possibility of creating an “enabling space”.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 3 (2018): Spazi che abilitano/ Enabling Space
Core crystallization and pile-up in the cooling sequence of evolving white dwarfs
Creators: name: Tremblay, Pier-Emmanuel
name: Fontaine, Gilles
name: Fusillo, Nicola Pietro Gentile
name: Dunlap, Bart H.
name: Gänsicke, Boris T.
name: Hollands, Mark A.
name: Hermes, J. J.
name: Marsh, Thomas R.
name: Cukanovaite, Elena
name: Cunningham, Tim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: White dwarfs are stellar embers depleted of nuclear energy sources that cool over billions of years. These stars, which are supported by electron degeneracy pressure, reach densities of 1e7 grams per cubic centimetre in their cores. It has been predicted that a first-order phase transition occurs during white-dwarf cooling, leading to the crystallization of the non-degenerate carbon and oxygen ions in the core, which releases a considerable amount of latent heat and delays the cooling process by about one billion years. However, no direct observational evidence of this effect has been reported so far. Here we report the presence of a pile-up in the cooling sequence of evolving white dwarfs within 100 parsecs of the Sun, determined using photometry and parallax data from the Gaia satellite. Using modelling, we infer that this pile-up arises from the release of latent heat as the cores of the white dwarfs crystallize. In addition to the release of latent heat, we find strong evidence that cooling is further slowed by the liberation of gravitational energy from element sedimentation in the crystallizing cores. Our results describe the energy released by crystallization in strongly coupled Coulomb plasmas, and the measured cooling delays could help to improve the accuracy of methods used to determine the age of stellar populations from white dwarfs.
description: 17 pages, author accepted version. Published in Nature 9 January 2019
Euphorbia ophthalmica Persoon 1806
Creators: name: Silva, Otávio Luis Marques Da
name: Cordeiro, Inês
name: Caruzo, Maria Beatriz Rossi
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Euphorbia
Euphorbia ophthalmica

description: 12. Euphorbia ophthalmica Persoon (1806: 13) (Fig. 4D–E). Type:— BRAZIL. Rio de Janeiro: July 1767, P. Commerson 238 (holotype P-JU!, fragment F).
 Distribution and habitat:— Euphorbia ophthalmica is a worldwide tropical and subtropical weed. In the State of São Paulo the species is very common, mainly on disturbed areas.
 Representative Specimen:— BRAZIL. São Paulo: Iperó, 19 December 2012, O.L.M. Silva et al. 59 (SP).
 Taxonomic notes:— Euphorbia ophthalmica is very similar to E. hirta due to the cyathia arranged in capitate synflorescences, but the species differ, mainly, on the position of them (see notes under Euphorbia hirta).
description: Published as part of Silva, Otávio Luis Marques Da, Cordeiro, Inês & Caruzo, Maria Beatriz Rossi, 2014, Synopsis of Euphorbia (Euphorbiaceae) in the state of São Paulo, Brazil, pp. 193-215 in Phytotaxa 181 (4) on page 202, DOI: 10.11646/phytotaxa.181.4.1, http://zenodo.org/record/5146135
title: "Enabling" Space. Dialogues and bridges between institutions and self-organized practices for a collaborative territorial planning.
Creators: name: Ragozino, Stefania
name: Esposito De Vita, Gabriella
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018
Subjects: Periferie; Spazi Pubblici; riqualificazione; progettazione; studi urbani;

description: -
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 3 (2018): Spazi che abilitano/ Enabling Space
Introducción a las Comunicaciones Ópticas
Creators: name: Rivadeneira, Bibiana Mollinedo
Publisher: name: figshare
Year: 2020
Subjects: subject: 100507 Optical Networks and Systems
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 111302 Optical Technology
subject: FOS: Clinical medicine
subject: 100506 Optical Fibre Communications

description: En este documento la autora explica los fundamentos físicos y tecnológicos sobre los que se apoyan las transmisiones de datos por fibra óptica.
title: Charakterisierung und Modellbildung des Elastomerlagerverhaltens bei Betriebs- und Sonderlasten
Creators: name: Riedel, Frieder
Publisher: name: UNSPECIFIED
Year: 2021

description: Virtuelle Methoden dienen in der betriebsfesten Bemessung des Fahrwerks in verschiedenen Entwicklungsphasen der Optimierung der Bauteile, um den Reifegrad der ersten Prototypen zu erhöhen und damit die Entwicklungskosten und -zeit zu senken. Die im Rahmen der Betriebsfestigkeitsabsicherung notwendigen Schnittlasten werden mittels der Methode der Mehrkörpersimulation ermittelt. Das Mehrkörpermodell des Gesamtfahrzeugs umfasst neben den flexiblen Fahrwerksbauteilen diverse Komponentenmodelle. Darin inbegriffen ist das Elastomerlagermodell. Elastomerlager fungieren in der Fahrwerkstruktur als komfort- und abstimmungsrelevantes Koppelelement und übertragen die fahrbahn- und manövererregten Radlasten in den Aufbau. Dabei beeinflussen sie mit ihren elastischen und dämpfenden Eigenschaften das Schwingverhalten der Achse und damit die resultierenden Schnittlasten. Eine aktuelle Herausforderung ist die Steigerung der Prognosefähigkeit der Simulation im hohen Lastbereich. Das Verhalten der Elastomerlager in diesem Lastbereich ist unzureichend untersucht. Die vorliegende Arbeit beschäftigt sich daher mit der Charakterisierung und Modellierung des Übertragungsverhaltens der Fahrwerkelastomerlager im Bereich der Betriebs- und Sonderlasten. Das Übertragungsverhalten bei Betriebs- und Sonderlasten ist durch eine starke Nichtlinearität und eine ausgeprägte, quasistatische Hysterese gekennzeichnet. Der Kraftanstiegsgradient der Hysterese variiert in Abhängigkeit der eingeleiteten Last. Daraus folgt eine erhöhte Energiedissipation im hohen Lastbereich. Die Modellierung der identifizierten Elastomerlagereffekte erfolgt mit rheologischen Ersatzmodellen. Die in der Literatur und Industrie bestehenden Modelle weisen erhebliche Schwächen hinsichtlich des real auftretenden Lagerverhaltens auf. Aus diesem Grund wird eine neue Elastomerlagermodellierung eingeführt und validiert, welche die Abbildungsgüte der Verlustarbeit im stark nichtlinearen Bereich der Lager erhöht. Ferner wird der Einfluss der Elastomerlagermodellierung auf die Schnittlasten aufgezeigt, der im Besonderen im hohen Lastbereich zu beobachten ist. Durch das neu eingeführte Elastomerlagermodell mit erhöhter dissipativer Arbeit im hohen Lastbereich wird grundsätzlich eine Steigerung der MKS-Simulationsgüte im Rahmen der virtuellen Schnittlastermittlung erzielt.
title: ‘Art Barricades’ and ‘Poetic Legitimation’ for squatted spaces: Metropoliz, Rome and Cavallerizza Reale, Turin
Creators: name: Bragaglia, Francesca
name: Krähmer, Karl
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018
Subjects: Squatting; Art, Right to the City; Creative Class; Self-Organization

description: Can art legitimise squatting? We examine this question through two case studies: Metropoliz in Rome – an old industrial building occupied by a multiethnic community – and Cavallerizza Reale in Turin – a historical complex occupied by active citizens. Both experiences use art, and the capital of attention and market value associated to it, as a tool to protect themselves from eviction. But art has become in the last decades both an economic good in which to invest capital and an instrument of neoliberal and post-fordist urban policies, linked to concepts such as Florida’s “creative class”. Now, members of precisely this class, who supposedly benefit from this model, engage, alongside others, in urban resistance. If using art in this form is an intelligent way to exploit it’s market value to protect projects aiming at the right to the city or rather means to succumb, at last, to the dominant model, is debated also among the activists themselves.

Key words: Squatting, Art, Right to the City, Creative Class, Self-Organization

L'arte può legittimare le occupazioni illegali? L’articolo affronta la questione attraverso due casi studio: Metropoliz a Roma - ex-edificio industriale occupato da una comunità multietnica - e la Cavallerizza Reale a Torino, complesso storico occupato da cittadini attivi. Entrambe le esperienze utilizzano l'arte e l’attenzione pubblica e il valore di mercato associati ad essa come strumento per proteggersi dal rischio di sgombero. L'arte però è diventata negli ultimi decenni anche un bene economico in cui investire e uno strumento di politiche urbane neoliberiste e post-fordiste, legate a concetti come quello di "creative class" di Florida. Ora proprio alcuni membri della classe creativa, che avrebbero dovuto beneficiare di questo modello, si impegnano in esperienze di attivismo urbano. Usare l'arte in questa forma può essere un modo per sfruttare il suo valore di mercato per tutelare progetti mirati al diritto alla città o significa piuttosto soccombere al modello dominante?

Parole chiave: Squatting, Arte, Diritto alla città, Creative Class, auto-organizzazione
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 4 (2018): Poteri e terreni di ambiguità nelle forme di auto-organizzazione contemporanee/ Powers and terrains of ambiguity in self-organization today
Quantum Mechanics of Yano tensors: Dirac equation in curved spacetime
Creators: name: Cariglia, Marco
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In spacetimes admitting Yano tensors the classical theory of the spinning particle possesses enhanced worldline supersymmetry. Quantum mechanically generators of extra supersymmetries correspond to operators that in the classical limit commute with the Dirac operator and generate conserved quantities. We show that the result is preserved in the full quantum theory, that is, Yano symmetries are not anomalous. This was known for Yano tensors of rank two, but our main result is to show that it extends to Yano tensors of arbitrary rank. We also describe the conformal Yano equation and show that is invariant under Hodge duality. There is a natural relationship between Yano tensors and supergravity theories. As the simplest possible example, we show that when the spacetime admits a Killing spinor then this generates Yano and conformal Yano tensors. As an application, we construct Yano tensors on maximally symmetric spaces: they are spanned by tensor products of Killing vectors.
description: 1+32 pages, no figures. Accepted for publication on Classical and Quantum Gravity. New title and abstract. Some material has been moved to the Appendix. Concrete formulas for Yano tensors on some special holonomy manifolds have been provided. Some corrections included, bibliography enlarged
Deformed relativistic Hartree-Bogoliubov theory in continuum with point coupling functional: examples of even-even Nd isotopes
Creators: name: Zhang, Kaiyuan
name: Cheoun, Myung-Ki
name: Choi, Yong-Beom
name: Chong, Pooi Seong
name: Dong, Jianmin
name: Geng, Lisheng
name: Ha, Eunja
name: He, Xiaotao
name: Heo, Chan
name: Ho, Meng Chit
name: In, Eun Jin
name: Kim, Seonghyun
name: Kim, Youngman
name: Lee, Chang-Hwan
name: Lee, Jenny
name: Li, Zhipan
name: Luo, Tianpeng
name: Meng, Jie
name: Mun, Myeong-Hwan
name: Niu, Zhongming
name: Pan, Cong
name: Papakonstantinou, Panagiota
name: Shang, Xinle
name: Shen, Caiwan
name: Shen, Guofang
name: Sun, Wei
name: Sun, Xiang-Xiang
name: Tam, Chi Kin
name: Thaivayongnou
name: Wang, Chen
name: Wong, Sau Hei
name: Xia, Xuewei
name: Yan, Yijun
name: Yeung, Ryan Wai-Yen
name: Yiu, To Chung
name: Zhang, Shuangquan
name: Zhang, Wei
name: Zhou, Shan-Gui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The aim of this work is to develop the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) theory based on the point-coupling density functionals and extend it to provide a unified description for all even-even nuclei in the nuclear chart by overcoming all possible challenges. The nuclear superfluidity is considered via Bogoliubov transformation. Densities and potentials are expanded in terms of Legendre polynomials to include the axial deformation degrees of freedom. Sophisticated relativistic Hartree-Bogoliubov equations in coordinate space are solved in the DiracWoods-Saxon basis to consider the continuum effects. Numerical checks are performed from light nuclei to heavy nuclei. The techniques to construct the DRHBc mass table for even-even nuclei are explored. The DRHBc theory is extended to study heavier nuclei beyond magnesium isotopes. Taking Nd isotopes as examples, the experimental binding energies, two-neutron separation energies, quadrupole deformations, and charge radii are reproduced rather well. The deformation and continuum play essential roles in the description of nuclear masses and prediction of drip-line nuclei. By examining the single-particle levels in the canonical basis and their contributions to the total density, the thickness of the neutron skin, the particles number in continuum, and the Coulomb barrier, the exotic structures including the neutron skin and the proton radioactivity are predicted.
description: 45 pages, 17 figures, and 1 table, accepted version for Physical Review C
Hybrid Meson Spectrum from the FLIC action
Creators: name: Hedditch, J. N.
name: Leinweber, D. B.
name: Williams, A. G.
name: Zanotti, J. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The spectral properties of hybrid meson interpolating fields are investigated. The quantum numbers of the meson are carried by smeared-source fermion operators and highly-improved chromo-electric and -magnetic field operators composed with APE-smeared links. The effective masses of standard and hybrid operators indicate that the ground state meson is effectively isolated using both standard and hybrid interpolating fields. Focus is placed on interpolating fields in which the large spinor components of the quark and antiquark fields are merged. In particular, the effective mass of the exotic $1^{-+}$ meson is reported. Further, we report some values for excited mesonic states using a variational process.
description: Talk given by A.G Williams at Workshop on Lattice Hadron Physics, Cairns, Queensland, Australia, July 2003
Additional file 4 of Efficacy of a smartphone application for helping individuals with type 2 diabetes mellitus manage their blood glucose: a protocol for factorial design trial
Creators: name: Tang, Hongxia
name: Qin, Hua
name: Zhang, Mingjiao
name: Zhang, Jihong
name: Tan, Huiwen
name: Chen, Mengjie
name: Kong, Laixi
name: Guo, Maoting
name: Hu, Fenghui
name: Wang, Qin
name: Wang, Xiaoxia
name: Zhang, Kun
name: Xiong, Zhenzhen
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4.
title: Lo "spazio abilitante" nelle politiche urbane tra Istituzioni pubbliche e pratiche di autorganizzazione. Intervista a Patrizia Di Girolamo
Creators: name: Lo Re, Vincenzo Luca
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018

description: -
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 3 (2018): Spazi che abilitano/ Enabling Space
Hierarchy and Up-Down Parallelism of Quark Mass Matrices
Creators: name: Mei, Jian-wei
name: Xing, Zhi-zhong
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In view of the quark mass hierarchy and in the assumption of the up-down parallelism, we derive two phenomenologically-favored patterns of Hermitian quark mass matrices from the quark flavor mixing matrix. We compare one of them with two existing {\it Ans$\it\ddot{a}$tze} proposed by Rosner and Worah and by Roberts {\it et al}, and find that only the latter is consistent with the present experimental data.
description: RevTex 9 pages. Accepted for publication in Phys. Rev. D
Assessment of low-altitude atmospheric turbulence models for aircraft aeroelasticity
Creators: name: Deskos, Georgios
name: del Carre, Alfonso
name: Palacios, Rafael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the dynamic response of flexible aircraft in low-altitude atmospheric turbulence. To this end, three turbulence models of increasing fidelity, namely, the one-dimensional von K{á}rm{á}n model, the two-dimensional Kaimal model and full three-dimensional wind fields extracted from large-eddy simulations (LES) are used to simulate ambient turbulence near the ground. Load calculations and flight trajectory predictions are conducted for a flexible high-aspect ratio aircraft, using a fully coupled nonlinear flight dynamics/aeroelastic model, when it operates in background atmospheric turbulence generated by the aforementioned models. Comparison of load envelopes and spectral content, on vehicles of varying flexibility, shows strong dependency between the selected turbulence model and aircraft aeroelastic response (e.g. 58\% difference in the predicted magnitude of the wing root bending moment between LES and von K{á}rm{á}n models). This is mainly due to the presence of large flow structures at low altitudes that have comparable dimensions to the vehicle, and which despite the relatively small wind speeds within the Earth boundary layer, result in overall high load events. Results show that one-dimensional models that do not capture those effects provide fairly non-conservative load estimates and are unsuitable for very flexible airframe design.
title: Enabling spaces. Quali ponti tra istituzioni e cittadini per pratiche di governo collaborative?
Creators: name: Cognetti, Francesca
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018

description: Il testo propone una riflessione che, a partire dall’osservazione dei campi ormai consolidati della partecipazione promossa dalle istituzioni e delle pratiche collaborative nate in seno a movimenti e società, costruisce un terreno di scambio, là dove questi ambiti vengono spesso visti come separati. L’interesse è di porre l’attenzione sulle condizioni per cui si possano generare spazi di confronto e co-progettazione, che richiedono a tutti i soggetti coinvolti di uscire dai propri frame, e quindi di apprendere nel corso del confronto. Questi possono essere ambienti altamente collaborativi, ma anche molto conflittuali, sedi di relazioni di potere, posizionamenti politici a più scale, livelli diversi di rappresentatività. Per questa ragione, la formazione di nuovi orientamenti verso obiettivi comuni non è mai un esito scontato. Enabling spaces in questa prospettiva sono arene in cui sperimentare e formare la capacità politica “di tutti”, sfidando così il funzionamento stesso della democrazia locale.

The article reflects on the potential relationship among institutional participatory policies and different practices of re-appropriation of space and self-organization. This vast field of activity and experiences, seen not in opposition but in a continuum, challenges the roles and meanings of the institutions and civil society. These experiments are focused on action that simultaneously redefines the modes of social conflict as well as the routines and spaces of citizenship, as well as of the institutional habits and norms. This new collaborative perspective sees pressure for experimentation and consolidation by the institutions, but also by the inhabitants and other actors. The article investigates under what conditions this collaboration in generated, where the production of knowledge is the result of a multiplicity of shared practices. The enabling sites where these shared practices may eventually unfold can be considered as arenas where to experiment and shape political capacity, thus challenging the very functioning of local democracy.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 3 (2018): Spazi che abilitano/ Enabling Space
Introducción a las Redes Neuronales aplicadas al Aprendizaje Supervisado
Creators: name: Moreno, Andrea Navarro
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: En este documento, la autora realiza una introducción a los fundamentos biológicos en los que se sustentan las redes neuronales artificiales, así como un repaso de los conceptos generales para explicar cómo como se aplican las redes neuronales artificiales al aprendizaje supervisado.
Radio source contamination of the Sunyaev-Zeldovich effect in galaxy clusters
Creators: name: Massardi, Marcella
name: De Zotti, Gianfranco
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: By cross-correlating the 1.4 GHz FIRST catalog of radio sources with the Abell cluster catalog we have found an excess surface density by a factor ~5 of radio sources within a projected distance, r_p, of 0.1 Mpc (for h=0.65) from the cluster center. The profile of the excess density can be described, for r_p > 0.1 Mpc, by a beta-model with a core radius of ~0.70 Mpc and beta=1.65. The luminosity function of cluster sources does not show hints of cosmological evolution over the redshift range (z>~0.4) covered by our cluster sample. The mean luminosity function is in excellent agreement with the recent determination by Reddy & Yun (2004) for 7 nearby clusters and extends it by two orders of magnitude to higher luminosities. Its shape is very similar to that of the local luminosity function of field galaxies, but the space density is about 3000 times higher. When extrapolated to 30 GHz, our luminosity function compares very favourably with an estimate obtained directly from the 30 GHz observations by Cooray et al. (1998). The antenna temperature contributed by radio sources within the nominal cluster radius of 1.7 Mpc is estimated to be \~13.5 microK at 30 GHz for clusters at z~0 and decreases to ~3.4 microK at z~0.5, in the absence of cosmological evolution; it increases by a factor of \~1.5 within 0.25 Mpc from the cluster center. If the pure luminosity evolution models by Dunlop & Peacock (1990) are adopted, the radio source antenna temperature turns out to be essentially independent of redshift.
description: 6 pages, 7 figures, submitted to A&A
Euphorbia papillosa Saint-Hilaire 1824
Creators: name: Silva, Otávio Luis Marques Da
name: Cordeiro, Inês
name: Caruzo, Maria Beatriz Rossi
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Euphorbia
Euphorbia papillosa

description: 13. Euphorbia papillosa Saint-Hilaire (1824:18) (Fig. 4F–H). Type:— BRAZIL. Pasturages naturels du midi de la province de Sainte-Catherine et daus ceux de la province de Rio grande do sul, A.F.C.P. Saint-Hilaire 6952 (holotype P!, isotypes P!, MPU!).
 Distribution and habitat:— Euphorbia papillosa occurs in Brazil, Paraguay, Uruguay and Argentina. In the State of São Paulo, the species is known by only one specimen, collected between rocks in a pasture.
 Representative Specimen:— BRAZIL. São Paulo: “Córrego Alegre”, 03 January 1897, A. Löfgren CGG3465 (SP).
 Taxonomic notes:— Euphorbia papillosa may be easily distinguished among species with cyathia arranged in pleiochasia by its conspicuous indumentum all over the plant, while the others species (E. chrysophylla, E. cordeiroae, E. elodes and E. rhabdodes) are glabrate to glabrescent.
 The only record for the state of São Paulo is a collection by A. Löfgren, from the Geological-Geographic Comission of São Paulo, from a locality called “Córrego Alegre” in 1897, in the region of Serra da Mantiqueira. During the fieldwork for this treatment, we did not succed in collecting this species. Since no new specimen was collected in the state of São Paulo in the last century, the species is considered “Presumably Extinct” in the state according to the criteria of Mamede et al. (2007).
description: Published as part of Silva, Otávio Luis Marques Da, Cordeiro, Inês & Caruzo, Maria Beatriz Rossi, 2014, Synopsis of Euphorbia (Euphorbiaceae) in the state of São Paulo, Brazil, pp. 193-215 in Phytotaxa 181 (4) on page 202, DOI: 10.11646/phytotaxa.181.4.1, http://zenodo.org/record/5146135
Enmascaramiento de Datos
Creators: name: Moreno, Andrea Navarro
Publisher: name: figshare
Year: 2020
Subjects: subject: 80604 Database Management
subject: FOS: Computer and information sciences
subject: Computer Software
subject: Computer Engineering
subject: 80303 Computer System Security
subject: Applied Computer Science

description: En este artículo, la autora realiza una introducción al contexto teórico sobre el enmascaramiento de datos para efectuar un análisis de casos prácticos.
The EBLM project -- XIV. TESS light curves for eclipsing binaries with very low mass companions
Creators: name: Fitzpatrick, Jay
name: Maxted, Pierre F. L.
name: Freckelton, Alix V.
name: Triaud, Amuary H. M. J.
name: Martin, David V.
name: Duck, Alison
Publisher: name: arXiv
Year: 2025
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Accurate limb-darkening models are needed for accurate characterisation of eclipsing binary stars and transiting exoplanets from the analysis of their light curves. The limb-darkening observed in solar-type stars from the analysis of light curves for transiting hot-Jupiter exoplanets are systematically less steep than predicted by stellar model atmospheres that do not account for the stellar magnetic field. Hot-Jupiter host stars tend to be metal rich ([Fe/H] ~0.25) leading to a lack of low- and solar-metallicity targets in previous studies, so we have analysed the TESS light curves for a sample of 19 stars with transiting M-dwarf companions to extend the range of limb-darkening measurements to [Fe/H] values more typical for solar-type stars. We find that the systematic offset between the observed and predicted limb-darkening profiles observed in metal-rich hot-Jupiter systems is also observed for these solar-type stars at lower metallicity. These observations provide additional measurements to explore the impact of magnetic fields on the atmospheres of solar-type stars. We have also used the TESS light curves to make precise estimates of the radius and effective temperature of the M-dwarf companions in these 19 binary systems. We confirm the results from previous studies that find very low mass stars tend to be about 3 per cent larger than predicted by stellar models that use a mixing length prescription calibrated on the Sun.
description: 12 pages, 5 Figures. This is a pre-copyedited, author-produced PDF of an article accepted for publication in MNRAS following peer review
Additional file 2 of The impacts of nicotinamide and inositol on the available cells and product performance of industrial baker's yeasts
Creators: name: Shan, Chengpeng
name: Xia, Tianqing
name: Liu, Jiao
name: Wang, Ying
name: Bai, Penggang
name: Xu, Lili
name: Li, Zailu
name: Zhao, Jianzhi
name: Bao, Xiaoming
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 2. Fig. S1 Adjustment of C/N ratio of MM in bioreactors.
Entangling capacities of noisy two-qubit Hamiltonians
Creators: name: Bandyopadhyay, Somshubhro
name: Lidar, Daniel A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that intrinsic fluctuations in system control parameters impose limits on the ability of two-qubit (exchange) Hamiltonians to generate entanglement starting from mixed initial states. We find three classes for Gaussian and Laplacian fluctuations. For the Ising and XYZ models there are qualitatively distinct sharp entanglement-generation transitions, while the class of Heisenberg, XY, and XXZ Hamiltonians is capable of generating entanglement for any finite noise level. Our findings imply that exchange Hamiltonians are surprisingly robust in their ability to generate entanglement in the presence of noise, thus potentially reducing the need for quantum error correction.
description: 5 pages, incl. 2 figures. replaced with published version
Feedback from low-luminosity radio galaxies: B2 0258+35
Creators: name: Murthy, Suma
name: Morganti, Raffaella
name: Oosterloo, Tom
name: Schulz, Robert
name: Mukherjee, Dipanjan
name: Wagner, Alexander Y.
name: Bicknell, Geoffrey
name: Prandoni, Isabella
name: Shulevski, Aleksander
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Low-luminosity radio-loud active galactic nuclei (AGN) are of importance in studies concerning feedback from radio AGN since a dominant fraction of AGN belong to this class. We report high-resolution Very Large Array (VLA) and European VLBI Network (EVN) observations of HI-21cm absorption from a young, compact steep-spectrum radio source, B2 0258+35, nested in the early-type galaxy NGC 1167, which contains a 160 kpc HI disc. Our VLA and EVN HI absorption observations, modelling, and comparison with molecular gas data suggest that the cold gas in the centre of NGC 1167 is very turbulent (with a velocity dispersion of ~ 90 km/s) and that this turbulence is induced by the interaction of the jets with the interstellar medium (ISM). Furthermore, the ionised gas in the galaxy shows evidence of shock heating at a few kpc from the radio source. These findings support the results from numerical simulations of radio jets expanding into a clumpy gas disc, which predict that the radio jets in this case percolate through the gas disc and drive shocks into the ISM at distances much larger than their physical extent. These results expand the number of low-luminosity radio sources found to impact the surrounding medium, thereby highlighting the possible relevance of these AGN for feedback.
description: 11 pages, 9 figures; Accepted for publication in Astronomy & Astrophysics
Hybrid Purification and Sampling Approach for Thermal Quantum Systems
Creators: name: Chen, Jing
name: Stoudenmire, E. Miles
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an algorithm which combines the beneficial aspects of two different methods for studying finite-temperature quantum systems with tensor networks. One approach is the ancilla method, which gives high-precision results but scales poorly at low temperatures. The other method is the minimally entangled typical thermal state (METTS) sampling algorithm which scales better than the ancilla method at low temperatures and can be parallelized, but requires many samples to converge to a precise result. Our proposed hybrid of these two methods purifies physical sites in a small central spatial region with partner ancilla sites, sampling the remaining sites using the METTS algorithm. Observables measured within the purified cluster have much lower sample variance than in the METTS approach, while sampling the sites outside the cluster reduces their entanglement and the computational cost of the algorithm. The sampling steps of the algorithm remain straightforwardly parallelizable. The hybrid approach also solves an important technical issue with METTS that makes it difficult to benefit from quantum number conservation. By studying S=1 Heisenberg ladder systems, we find the hybrid method converges more quickly than both the ancilla and METTS algorithms at intermediate temperatures and for systems with higher entanglement.
description: 9 pages, 12 figures
title: Indecorose abilità
Creators: name: Mistrello, Elena
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2018
Subjects: Spazi Pubblici; Auto-organizzazione;

description: -
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, No 3 (2018): Spazi che abilitano/ Enabling Space
Electromagnetic and gravitomagnetic structure and radii of nucleons
Creators: name: Selyugin, O. V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Taking into account the PDFs, obtained by different Collaborations, the momentum transfer dependence of GPDs of the nucleons is obtained. The calculated electromagnetic and gravitomagnetic form factors of nucleons are used for the description of different form factors and the nucleons elastic scattering in a wide energy and momentum transfer region with a minimum number of fitting parameters. The electromagnetic and gravitomagnetic radii of the nucleon are calculated using the obtained momentum transfer dependence of GPDs with different forms of PDFs obtained by different Collaborations. The comparison of the calculations, taking into account the PDFs obtained by different Collaborations, of mean square electromagnetic and gravitomagnetic radii of nucleons is made.
description: 12 pages, talk on The XXIV International Workshop "High Energy Physics and Quantum Field Theory" (QFTHEP 2019). arXiv admin note: text overlap with arXiv:1711.08205
Uniform Magnetic Order in a Ferromagnetic-Antiferromagnetic Random Alternating Quantum Spin Chain
Creators: name: Nakamura, Tota
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: An $S=1/2$ ferromagnetic (F) - antiferromagnetic (AF) random alternating Heisenberg quantum spin chain model is investigated in connection to its realization compound: (CH$_3$)$_2$CHNH$_3$Cu(Cl$_x$Br$_{1-x}$)$_3$. The exchange interaction bonds have alternating strong F-AF random bonds and weak uniform AF bonds. Using the quantum Monte Carlo method we have found that the excitation energy gap closes and the uniform AF order becomes critical in the intermediate concentration region. This finding explains the experimental observation of the magnetic transition by considering weak interchain interactions. Present results suggest that the uniform AF order survives even in the presence of randomly located ferromagnetic bonds. This may be a new quantum effect.
description: 9 pages, 11 figures
On the thermal sunset diagram for scalar field theories
Creators: name: Nishikawa, Tetsuo
name: Morimatsu, Osamu
name: Hidaka, Yoshimasa
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the so-called `` sunset diagram'', which is one of two-loop self-energy diagrams, for scalar field theories at finite temperature. For this purpose, we first find the complete expression of the bubble diagram, the one-loop subdiagram of the sunset diagram, for arbitrary momentum. We calculate the temperature independent part and dependent part of the sunset diagram separately. For the former, we obtain the discontinuous part first and the finite continuous part next using a twice-subtracted dispersion relation. For the latter, we express it as a one-dimensional integral in terms of the bubble diagram. We also study the structure of the discontinuous part of the sunset diagram. Physical processes, which are responsible for it, are identified. Processes due to the scattering with particles in the heat bath exist only at finite temperature and generate discontinuity for arbitrary momentum, which is a remarkable feature of the two-loop diagrams at finite temperature. As an application of our result, we study the effect of the diagram on the spectral function of the sigma meson at finite temperature in the linear sigma model, which was obtained at one-loop order previously. At high temperature where the decay $σ\toππ$ is forbidden, sigma acquires a finite width of the order of $10 {\rm MeV}$ while within the one-loop calculation its width vanishes. At low temperature, the spectrum does not deviate much from that at one-loop order. Possible consequences with including other two-loop diagrams are discussed.
description: 30 pages
This most uncertain of all sciences.odt
Creators: name: Wilkin, Stanley
Publisher: name: figshare
Year: 2020
Subjects: subject: 111005 Mental Health Nursing
subject: FOS: Health sciences
subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: A review of psychiatry and assess its authenticity.
Transactional Dynamics in Hyperledger Fabric: A Stochastic Modeling and Performance Evaluation of Permissioned Blockchains
Creators: name: Melo, Carlos
name: Gonçalves, Glauber
name: Silva, Francisco Airton
name: Fé, Iure
name: Moura, Ericksulino
name: Soares, André
name: Choi, Eunmi
name: Min, Dugki
name: Lee, Jae-Woo
name: Nguyen, Tuan Anh
Publisher: name: arXiv
Year: 2025
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Blockchain, often integrated with distributed systems and security enhancements, has significant potential in various industries. However, environmental concerns and the efficiency of consortia-controlled permissioned networks remain critical issues. We use a Stochastic Petri Net model to analyze transaction flows in Hyperledger Fabric networks, achieving a 95% confidence interval for response times. This model enables administrators to assess the impact of system changes on resource utilization. Sensitivity analysis reveals major factors influencing response times and throughput. Our case studies demonstrate that block size can alter throughput and response times by up to 200%, underscoring the need for performance optimization with resource efficiency.