cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spatial stress correlations in strong colloidal gel
Creators: name: Dagur, Divas Singh
name: Mondal, Chandana
name: Roy, Saikat
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this work, we systematically investigate for the first time the nature of stress correlations in soft colloidal gel materials which support tensile and compressive forces as well as finite rolling torque, as a function of system pressure. Similar to previous studies on frictional granular matter with only compressive forces and without any rolling torque, the full stress autocorrelation matrix is dictated by the pressure and torque autocorrelations due to mechanical balance and material isotropy constraints. Surprisingly, it is observed that the gel materials do not behave as a normal elastic solid close to the gel point as assumed loosely in the literature because the real space pressure fluctuations decay slower than the normal. We also demonstrate that at low pressure the fractal like structural correlation determines the pressure fluctuations and this is manifested in the real space in terms of inhomogeneous and anisotropic force networks formed due to large voids. Far away from the gel point, as the voids collapse under compression, the force chain network becomes homogeneous and isotropic and the pressure fluctuations become normal leading to normal elastic decay at long range, behaving similar to frictionless granular matter and glass. We also observe that the torque autocorrelation is not hyperuniform in the presence of rolling resistance close to the gel point. Furthermore, we link the abnormal pressure fluctuations to the non-hyperuniform behaviour of the system with respect to the local packing fraction fluctuations, thus relating the deviations from the normal elastic behaviour across various non-equilibrium systems under a common framework.
description: 5 pages, 5 figures
Label noise detection under the Noise at Random model with ensemble filters
Creators: name: Moura, Kecia G.
name: Prudêncio, Ricardo B. C.
name: Cavalcanti, George D. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Label noise detection has been widely studied in Machine Learning because of its importance in improving training data quality. Satisfactory noise detection has been achieved by adopting ensembles of classifiers. In this approach, an instance is assigned as mislabeled if a high proportion of members in the pool misclassifies it. Previous authors have empirically evaluated this approach; nevertheless, they mostly assumed that label noise is generated completely at random in a dataset. This is a strong assumption since other types of label noise are feasible in practice and can influence noise detection results. This work investigates the performance of ensemble noise detection under two different noise models: the Noisy at Random (NAR), in which the probability of label noise depends on the instance class, in comparison to the Noisy Completely at Random model, in which the probability of label noise is entirely independent. In this setting, we investigate the effect of class distribution on noise detection performance since it changes the total noise level observed in a dataset under the NAR assumption. Further, an evaluation of the ensemble vote threshold is conducted to contrast with the most common approaches in the literature. In many performed experiments, choosing a noise generation model over another can lead to different results when considering aspects such as class imbalance and noise level ratio among different classes.
description: Accepted for publication in IOS Press Intelligent Data Analysis. This paper will appear in Volume 26(5) of the IDA journal. The publication date for this issue is September 2022
An imporved decentralized approach for tracking multiple mobile targets through ZigBee WSNs
Creators: name: Alhmiedat, Tareq
name: Salem, Amer O. Abu
name: Taleb, Anas Abu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Target localization and tracking problems in WSNs have received considerable attention recently, driven by the requirement to achieve high localization accuracy, with the minimum cost possible. In WSN based tracking applications, it is critical to know the current location of any sensor node with the minimum energy consumed. This paper focuses on the energy consumption issue in terms of communication between nodes whenever the localization information is transmitted to a sink node. Tracking through WSNs can be categorized into centralized and decentralized systems. Decentralized systems offer low power consumption when deployed to track a small number of mobile targets compared to the centralized tracking systems. However, in several applications, it is essential to position a large number of mobile targets. In such applications, decentralized systems offer high power consumption, since the location of each mobile target is required to be transmitted to a sink node, and this increases the power consumption for the whole WSN. In this paper, we propose a power efficient decentralized approach for tracking a large number of mobile targets while offering reasonable localization accuracy through ZigBee network.
description: 16 pages
Bufonidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Bufonidae

description: Family Bufonidae   Bufo arenarum Hensel (tadpoles)
 Echinochasmus suspensum (Braun, 1901) Kostadinova & Gibson, 2001
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 30, DOI: 10.5281/zenodo.273687
Quantum Algorithm for Solving a Quadratic Nonlinear System of Equations
Creators: name: Xue, Cheng
name: Xu, Xiao-Fan
name: Wu, Yu-Chun
name: Guo, Guo-Ping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Solving a quadratic nonlinear system of equations (QNSE) is a fundamental, but important, task in nonlinear science. We propose an efficient quantum algorithm for solving $n$-dimensional QNSE. Our algorithm embeds QNSE into a finite-dimensional system of linear equations using the homotopy perturbation method and a linearization technique; then we solve the linear equations with a quantum linear system solver and obtain a state which is $ε$-close to the normalized exact solution of the QNSE with success probability $Ω(1)$. The complexity of our algorithm is $O({\rm polylog}(n/ε))$, which provides an exponential improvement over the optimal classical algorithm in dimension $n$, and the dependence on $ε$ is almost optimal. Therefore, our algorithm exponentially accelerates the solution of QNSE and has wide applications in all kinds of nonlinear problems, contributing to the research progress of nonlinear science.
description: 12 pages;
La influencia española en la configuración de Pousadas de Portugal
Creators: name: Cupeiro López, Patrícia
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: La Red de Paradores Nacionales de Turismo nace en el primer tercio del siglo XX con el objetivo de crear en España una infraestructura hotelera capaz de subsanar las carencias de un sector entonces emergente. La inauguración del primer parador en 1928, encabeza un amplio número de establecimientos enclavados en monumentos histórico-artísticos o entornos naturales de relevancia, que en la actualidad rondan la centena. Poco después, su país vecino Portugal, desarrolla una cadena hotelera que irá configurando características similares desde mediados de siglo: la red de Pousadas de Portugal. Este estudio plantea el análisis de los factores determinantes en la elección de edificios históricos para ser adaptados a un nuevo uso basándose en un análisis documental pormenorizado de fondos documentales y bibliográficos y un trabajo de campo en España. Podremos comprobar la repercusión que el turismo ha tenido como aliciente para la rehabilitación del patrimonio construido en la Península Ibérica. La reciente crisis que atraviesa Europa nos obliga a analizar y difundir experiencias donde el difícil equilibrio entre la conservación del patrimonio construido y su explotación como recurso turístico ha sido rentable.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
A importância do turismo cultural e criativo na imagem de um destino turístico
Creators: name: Santos, João Fiandeiro
name: Carvalho, Rui
name: Figueira, Luís Mota
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: A criatividade e a influência cada vez maior da cultura no campo do turismo concorreram para o surgimento de um novo paradigma ao nível da oferta dos destinos, com implicações na sua imagem e marca. Eventos culturais e criativos constituem desta forma ferramentas estratégicas na gestão dos territórios ajudando a delinear a oferta turística dos destinos. Foi nosso objetivo caracterizar os contributos criativos que os eventos incorporam em termos de reabilitação urbana, diferenciação da oferta turística, o uso de recursos intangíveis na preservação da cultura local e o seu contributo para a formação de uma imagem e marca do destino turístico mais dinâmicas. Foram analisados dois estudos de caso considerados importantes para a pesquisa em questão, a Festa dos Tabuleiros em Tomar e o Festival MED em Loulé. Verificámos que os eventos correspondem a estratégias de desenvolvimento cultural, social e económico dos destinos melhorando a imagem turística dos territórios. O incremento criativo que os eventos originam, proporciona o desenvolvimento e crescimento de fluxos turísticos contribuindo para o sucesso das economias locais e regionais. Estes devem ser enquadrados nas estratégias territoriais.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Broken symmetry and competing orders in Weyl semimetal interfaces
Creators: name: Kundu, Ritajit
name: Fertig, H. A.
name: Kundu, Arijit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider interaction-induced broken symmetry states of two Weyl semimetal surfaces with multiple Fermi-arc (FA) states. In the presence of inter- and intra-surface Coulomb interactions, multiple broken symmetries may emerge which coexist and/or compete with one another. Interlayer exciton condensates involving different FA flavors are shown to form, with amplitudes determined by the strength of interactions and the degree of nesting among the arcs. For FA pairs which are well-separated in momentum with strong nesting, the resulting state is a particle-hole analog of a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductor. Intralayer interactions moreover induce charge density wave (CDW) ordering, so that the most general state of the system is a supersolid. These orderings in principle carry signatures in non-linear behavior and narrow band noise in Coulomb drag transport measurements.
description: 16 pages. Comments welcome
Atherinidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Atheriniformes
Atherinidae

description: Family Atherinidae   Odontesthes bonariensis (Valenciennes)
 Austrodiplostomum mordax Szidat & Nani, 1951
 Odontesthes hatcheri (Eigenmann)
 Austrodiplostomum mordax Szidat & Nani, 1951
 Odontesthes smitti (Lahille)
 Austrodiplostomum mordax Szidat & Nani, 1951
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 30, DOI: 10.5281/zenodo.273687
Generating indistinguishability within identical particle systems: spatial deformations as quantum resource activators
Creators: name: Piccolini, Matteo
name: Nosrati, Farzam
name: Adesso, Gerardo
name: Morandotti, Roberto
name: Franco, Rosario Lo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Identical quantum subsystems can possess a property which does not have any classical counterpart: indistinguishability. As a long-debated phenomenon, identical particles' indistinguishability has been shown to be at the heart of various fundamental physical results. When concerned with the spatial degree of freedom, identical constituents can be made indistinguishable by overlapping their spatial wave functions via appropriately defined spatial deformations. By the laws of quantum mechanics, any measurement designed to resolve a quantity which depends on the spatial degree of freedom only and performed on the regions of overlap is not able to assign the measured outcome to one specific particle within the system. The result is an entangled state where the measured property is shared between the identical constituents. In this work, we present a coherent formalization of the concept of deformation in a general $N$-particle scenario, together with a suitable measure of the degree of indistinguishability. We highlight the basic differences with nonidentical particles scenarios and discuss the inherent role of spatial deformations as entanglement activators within the "spatially localized operations and classical communication" operational framework.
description: 10 pages, 1 table, 1 figure. Accepted for publication, as an invited article, to the upcoming issue "Identity, Individuality and Indistinguishability in Physics and Mathematics" of Philosophical Transactions of the Royal Society A
Representação turística de Portugal no Brasil: um estudo exploratório
Creators: name: Halim, Isis
name: Baptista, Maria Manuel
name: Silveira, Lélian
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: O presente artigo tem como objetivo identificar as representações imaginárias de Portugal e seus nacionais que circulam no quotidiano coletivo de turistas brasileiros. Fundamenta-se em uma avaliação de perceção da população, utilizando como base um estudo empírico efetuado na cidade de Salvador, Brasil. A partir de uma análise de literatura nesta área de especialidade, apoiada em trabalhos na área do Turismo Cultural e dos Estudos Culturais, foi feita uma leitura de Portugal enquanto destino turístico e paisagem de representações. E posteriormente, num resgate histórico, identificou-se a formação dessas representações, dentro do seu próprio contexto, percebendo de que maneira essas significações sofrem ao longo dos tempos, um processo de renovação, atualização ou legitimação.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Universality property of the $S$-functional calculus, noncommuting matrix variables and Clifford operators
Creators: name: Colombo, Fabrizio
name: Gantner, Jonathan
name: Kimsey, David P.
name: Sabadini, Irene
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A10, 47A60

description: The spectral theory on the $S$-spectrum was born out of the need to give quaternionic quantum mechanics (formulated by Birkhoff and von Neumann) a precise mathematical foundation. Then it turned out that this theory has important applications in several fields such as fractional diffusion problems and, moreover, it allows one to define several functional calculi for $n$-tuples of noncommuting operators. With this paper we show that the spectral theory on the $S$-spectrum is much more general and it contains, just as particular cases, the complex, the quaternionic and the Clifford settings. More precisely, we show that the $S$-spectrum is well defined for objects in an algebra that has a complex structure and for operators in general Banach modules. We show that the abstract formulation of the $S$-functional calculus goes beyond quaternionic and Clifford analysis. Indeed we show that the $S$-functional calculus has a certain {\em universality property}. This fact makes the spectral theory on the $S$-spectrum applicable to several fields of operator theory and allows one to define functions of noncommuting matrix variables, and operator variables, as a particular case.
SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8
Creators: name: Bothwell, M. S.
name: Aguirre, J. E.
name: Chapman, S. C.
name: Marrone, D. P.
name: Vieira, J. D.
name: Ashby, M. L. N.
name: Aravena, M.
name: Benson, B. A.
name: Bock, J. J.
name: Bradford, C. M.
name: Brodwin, M.
name: Carlstrom, J.
name: Crawford, T. M.
name: de Breuck, C.
name: Downes, T. P.
name: Fassnacht, C. D.
name: Gonzalez, A. H.
name: Greve, T. R.
name: Gullberg, B.
name: Hezaveh, Y.
name: Holder, G. P.
name: Holzapfel, W. L.
name: Ibar, E.
name: Ivison, R.
name: Kamenetzky, J.
name: Keisler, R.
name: Lupu, R. E.
name: Ma, J.
name: Malkan, M.
name: McIntyre, V.
name: Murphy, E. J.
name: Nguyen, H. T.
name: Reichardt, C. L.
name: Rosenman, M.
name: Spilker, J. S.
name: Stalder, B.
name: Stark, A. A.
name: Strandet, M.
name: Vernet, J.
name: Weiss, A.
name: Welikala, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present observations of SPT-S J053816-5030.8, a gravitationally-lensed dusty star forming galaxy (DSFG) at z = 2.7817, first discovered at millimeter wavelengths by the South Pole Telescope. SPT 0538-50 is typical of the brightest sources found by wide-field millimeter-wavelength surveys, being lensed by an intervening galaxy at moderate redshift (in this instance, at z = 0.441). We present a wide array of multi-wavelength spectroscopic and photometric data on SPT 0538-50, including data from ALMA, Herschel PACS and SPIRE, Hubble, Spitzer, VLT, ATCA, APEX, and the SMA. We use high resolution imaging from HST to de-blend SPT 0538-50, separating DSFG emission from that of the foreground lens. Combined with a source model derived from ALMA imaging (which suggests a magnification factor of 21 +/- 4), we derive the intrinsic properties of SPT 0538-50, including the stellar mass, far-IR luminosity, star formation rate, molecular gas mass, and - using molecular line fluxes - the excitation conditions within the ISM. The derived physical properties argue that we are witnessing compact, merger-driven star formation in SPT 0538-50, similar to local starburst galaxies, and unlike that seen in some other DSFGs at this epoch.
description: 16 pages, 11 figures. Accepted for publication in ApJ
Comment on: Evidence and Stability Field of fcc Superionic Water Ice Using Static Compression
Creators: name: Goncharov, Alexander F.
name: Prakapenka, Vitali B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Weck et al. (1) report on the existence and stability fields of two superionic (SI) phases of H2O ice at high P-T (P-T) conditions, which has been a topic of static and dynamic experiments and theoretical calculations (see Ref. (2) and references therein). They confirm Ref. (2) in that there are two SI phases with bcc and fcc oxygen sublattices with the stability at low- and high-P. However, they report on an extended stability field of fcc-SI ice toward lower T but no sign of it below 57 GPa. Here we argue that the reported phase boundaries of fcc-SI phase are not well experimentally justified due to difficulties to perform adequate X-ray diffraction (XRD) and radiometric measurements.
description: 2 pages, 2 figures, 2 references
Cultura e Desenvolvimento Regional: Projeto Caminhos do Frio – Rota Cultural no Brejo Paraibano/Brasil
Creators: name: Galvão, Suenia De Fátima Silva
name: Milito, Marcelo Chiarelli
name: Ferreira, Jefferson Cavalcante
name: Alves, Maria Lúcia Bastos
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: O turismo cultural é um dos segmentos do setor turístico que mais cresce na atualidade e por isto desperta interesse ao investimento, fazendo surgir a cada dia inúmeros projetos devido ao valor cultural associado ao potencial do turismo. Tendo em vista a crescente demanda por esse segmento, o objetivo deste estudo é conhecer o processo de desenvolvimento turístico do Brejo Paraibano através do uso dos bens culturais no Projeto Caminhos do Frio - Rota Cultural, direcionado pelo Programa de Regionalização do Turismo (PRT), que estimula e desenvolve projetos turísticos a partir dos recursos culturais no Brasil. Assim, este artigo versa sobre o referido projeto e o papel do turismo no desenvolvimento da região a partir das diretrizes do PRT, hoje aceites pelo Ministério de Turismo Brasileiro como modelo de gestão, ao reforçar o posicionamento teórico atual que indica o molde de desenvolvimento regional como suporte e prioridade aos novos projetos fomentados pelas iniciativas desse setor.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Turismo e cultura audiovisual: a Turisteca do Pólo da UTAD (Universidade de Trás-os-Montes e Alto Douro) em Chaves1
Creators: name: Pereiro, Xerardo
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: Este texto pretende refletir, desde uma perspetiva antropológica, sobre a importância da cultura audiovisual e documental no campo do turismo, a partir de uma experiência de criação de um acervo audiovisual e documental do turismo: a Turisteca do Pólo da UTAD em Chaves. Este projeto está ligado ao curso de turismo da UTAD e ao CETRAD (Centro de Estudos Transdisciplinares para o Desenvolvimento) e foi aberto ao público em Abril de 2008. Neste texto, justifica-se a implementação deste projeto com base no valor da relação entre cultura audiovisual e turismo, nos impactos pedagógicos e científicos positivos sobre a licenciatura em turismo da UTAD e na salvaguarda de patrimónios turísticos dispersos.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Intercultural Interpretation Strategies in the Museum Context: The Case Study of a Guided Visit to the Coach Museum in Lisbon
Creators: name: Brito, Miguel
Publisher: name: Journal of Tourism & Development
Year: 2012

description: A guided tour to the Coach Museum can either be a nightmare or a pleasant dream depending on the information guides convey about the vehicles exhibited. Lively visits may be provided where intercultural interpretation strategies are deployed, awakening in the tourist different kinds of emotions, from piety to amusement, from fantasy to reality. This paper discusses the different characteristics displayed by tourist guide interpretations at the Lisbon Coach Museum. The author followed fifty professional guides during their tours at the museum, during the months of September and October 2009. The anthropological technique applied is direct observation. The study of tourist guides at their working context enables the identification of the intercultural skills developed by these professionals, such as their good knowledge and their language proficiency. However, some inappropriate attitudes were also detected. The interpretative strategies adopted in communication serve the scope of engaging tourists in the visit performance – questions, humour, storytelling, connections with the tourists’ reality and fantasy. Although the information conveyed is similar, the interpretation strategies vary according to the tourists’ nationality and to the guides and their personal characteristics. Conclusions suggest that the appropriate intercultural communication skills and the effective use of intercultural interpretation strategies facilitate the change of the tourists’ world representations.
description: Journal of Tourism & Development, vol. 3 n.º 17/18 (2012)
Excited-state optically detected magnetic resonance of spin defects in hexagonal boron nitride
Creators: name: Mu, Zhao
name: Cai, Hongbing
name: Chen, Disheng
name: Jiang, Zhengzhi
name: Ru, Shihao
name: Lyu, Xiaodan
name: Liu, Xiaogang
name: Aharonovich, Igor
name: Gao, Weibo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Negatively charged boron vacancy (VB-) centers in hexagonal boron nitride (hBN) are promising spin defects in a van der Waals crystal. Understanding the spin properties of the excited state (ES) is critical for realizing dynamic nuclear polarization. Here, we report zero-field splitting in the ES of DES = 2160 MHz and an optically detected magnetic resonance (ODMR) contrast of 12% at cryogenic temperature. The ES has a g-factor similar to the ground state. The ES photodynamics is further elucidated by measuring the level anti-crossing of the VB- defects under varying external magnetic fields. In contrast to nitrogen vacancy (NV-) centers in diamond, the emission change caused by excited-state level anti-crossing (ESLAC) is more prominent at cryo-temperature than at room temperature. Our results provide important information for utilizing the spin defects of hBN in quantum technology.
Belostomatidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Belostomatidae

description: Family Belostomatidae   Belostoma elegans (Mayr) Stomylotrema sp ..
 Belostoma foveolatum (Mayr)
 Stomylotrema sp.
 Belostoma oxyurum (Dufour)
 Stomylotrema sp
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 30, DOI: 10.5281/zenodo.273687
Fabrication of nanopores in a graphene sheet with heavy ions: a molecular dynamics study
Creators: name: Li, Weisen
name: Liang, Li
name: Zhao, Shijun
name: zhang, Shuo
name: Xue, Jianming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Molecular dynamics (MD) simulations were performed to study the formation process of nanopores in a suspended graphene sheet irradiated by using energetic ions though a mask. By controlling the ion parameters including mass, energy and incident angle, different kinds of topography were observed in the graphene sheet. Net-like defective strucutures with carbon atom chains can be formed at low ion fluence, which provides the possibility to functionalize the irradiated sample with subsequent chemical methods; finally a perfect nanopore with smooth edge appears as the ion fluence is high enough. We found that the dependence of ion damage efficiency on ion fluence, energy and incident angle are different from that predicted by the semi-empirical model based on the binary-collision approximation, which results from the special structure of graphene. Our results demonstrate that it is feasible to fabricate controlled nanopores/nanostructures in graphene via heavy ion irradiation.
description: 17 pages, 6 figures
Influence of substitution on the optical properties of functionalized pentacene monomers and crystals: Experiment and theory
Creators: name: Saeed, Y.
name: Zhao, K.
name: Singh, N.
name: Li, R.
name: Anthony, J. E.
name: Amassian, A.
name: Schwingenschlögl, U.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The influence of solubilizing substitutional groups on the electronic and optical properties of functionalized pentacene molecules and crystals have been investigated. Density functional theory is used to calculate the electronic and optical properties of pentacene, TIBS-CF$_{3}$-pentacene, and TIPS-pentacene. The results are compared with experimental absorption spectra of solutions and the complex dielectric function of thin films in the 1 eV to 3 eV energy range. In all cases, the band gaps of the isolated molecules are found to be smaller than those of the crystals. The absorption spectra and dielectric function are interpreted in terms of the transitions between the highest occupied molecular orbitals and lowest unoccupied molecular orbitals. The bands associated to C and Si atoms connecting the functional side group to the pentacene in the (6,13) positions are found to be the main contributors to the optical transitions. The calculated dielectric functions of thin films agree with the experimental results. A redshift is observed in crystals as compared to molecules in experiment and theory both, where the amplitude depends on the packing structure.
Turismo cultural e paisagem urbana: análise dos cascos históricos de Itajaí e de São Francisco do Sul – Santa Catarina, Brasil
Creators: name: Tomelin, Carlos Alberto
name: Rossini, Diva De Mello
name: Fontanella, Fernando Luigi Padoin
name: Anjos, Francisco Antonio Dos
name: Oliveira, Josildete Pereira
name: Tricarico, Luciano Torres
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: Um dos objetivos deste trabalho foi estudar a paisagem do casco histórico das cidades de Itajaí, ocupada a partir do século XVII, e de São Francisco do Sul, ocupada no século XVI, ambas cidades do Estado de Santa Catarina, no Brasil. Outro objetivo consistiu em identificar as potencialidades para o desenvolvimento do turismo cultural, a partir das categorias de Cullen (1971), Lynch (1997), Rossi (1995) e de Boullón (2002), através de pesquisa bibliográfica, documental e de campo que auxiliaram na identificação dos atributos turístico-culturais.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Determining large-strain metal plasticity parameters using in-situ measurements of plastic flow past a wedge
Creators: name: Chawla, Harshit
name: Yadav, Shwetabh
name: Aprahamian, Hrayer
name: Sagapuram, Dinakar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a novel approach to determine the constitutive properties of metals under large plastic strains and strain rates that otherwise are difficult to access using conventional materials testing methods. The approach exploits large-strain plastic flow past a sharp wedge, coupled with high-speed photography and image velocimetry to capture the underlying plastic flow dynamics. The inverse problem of estimating material parameters from the flow field is solved using an iterative optimization procedure that minimizes the gap between internal and external plastic work. A major advantage of the method is that it neither makes any assumptions about the flow nor requires computational simulations. To counter the problem of non-unique parameter estimates, we propose a parameterization scheme that takes advantage of the functional form of the constitutive model and reformulates the problem into a more tractable form to identify plasticity parameters uniquely. We present studies to illustrate the principle of the method with two materials with widely different plastic flow characteristics: copper (strain hardening) and a lead-free solder alloy (rate sensitive and deformation history dependent). The results demonstrate the efficacy of the method in reliably determining the material parameters under high strain/strain rate conditions of relevance to a range of practical engineering problems.
description: 9 figures, 3 tables
Galaxiidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Osmeriformes
Galaxiidae

description: Family Galaxiidae   Aplochiton taeniatus Jenyns
 Austrodiplostomum mordax Szidat & Nani, 1951 Galaxias maculatus (Jenyns)
 Austrodiplostomum mordax Szidat & Nani, 1951
 Stephanoprora uruguayense Holcman­Spector & Olague, 1989 Galaxias platei Steindachner
 Austrodiplostomum mordax Szidat & Nani, 1951
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 31, DOI: 10.5281/zenodo.273687
Black-Box Quantum State Preparation with Inverse Coefficients
Creators: name: Wang, Shengbin
name: Wang, Zhimin
name: He, Runhong
name: Cui, Guolong
name: Shi, Shangshang
name: Shang, Ruimin
name: Li, Jiayun
name: Li, Yanan
name: Li, Wendong
name: Wei, Zhiqiang
name: Gu, Yongjian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Black-box quantum state preparation is a fundamental building block for many higher-level quantum algorithms, which is applied to transduce the data from computational basis into amplitude. Here we present a new algorithm for performing black-box state preparation with inverse coefficients based on the technique of inequality test. This algorithm can be used as a subroutine to perform the controlled rotation stage of the Harrow-Hassidim-Lloyd (HHL) algorithm and the associated matrix inversion algorithms with exceedingly low cost. Furthermore, we extend this approach to address the general black-box state preparation problem where the transduced coefficient is a general non-linear function. The present algorithm greatly relieves the need to do arithmetic and the error is only resulted from the truncated error of binary string. It is expected that our algorithm will find wide usage both in the NISQ and fault-tolerant quantum algorithms.
description: 11 pages, 3 figures
Diffusive transport in Weyl semimetals
Creators: name: Biswas, Rudro R.
name: Ryu, Shinsei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Diffusion, a ubiquitous phenomenon in nature, is a consequence of particle number conservation and locality, in systems with sufficient damping. In this paper we consider diffusive processes in the bulk of Weyl semimetals, which are exotic quantum materials, recently of considerable interest. In order to do this, we first explicitly implement the analytical scheme by which disorder with anisotropic scattering amplitude is incorporated into the diagrammatic response-function formalism for calculating the `diffuson'. The result thus obtained is consistent with transport coefficients evaluated from the Boltzmann transport equation or the renormalized uniform current vertex calculation, as it should be. We thus demonstrate that the computation of the diffusion coefficient should involve the transport lifetime, and not the quasiparticle lifetime. Using this method, we then calculate the density response function in Weyl semimetals and discover an unconventional diffusion process that is significantly slower than conventional diffusion. This gives rise to relaxation processes that exhibit stretched exponential decay, instead of the usual exponential diffusive relaxation. This result is then explained using a model of thermally excited quasiparticles diffusing with diffusion coefficients which are strongly dependent on their energies. We elucidate the roles of the various energy and time scales involved in this novel process and propose an experiment by which this process may be observed.
description: 14 pages, 8 figures
Estímulos influenciadores do prazer e do relaxamento: o contexto do SPA em hotel termal em Portugal
Creators: name: Almeida, Marta Maria Costa
name: Loureiro, Sandra Maria Correia
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: Este trabalho tem como objetivo rever as características de pistas atmosféricas e adaptar o modelo teórico S-O-R no contexto do turismo de saúde e lazer, nomeadamente em SPA. O interesse no turismo de saúde e de lazer tem crescido dado que as pessoas estão cada vez mais conscientes da sua saúde e bem-estar. Nesse sentido, foi construído um questionário com base na revisão de literatura e na informação obtida junto gestão dos SPA em hotel termal. A pesquisa foi realizada através de um questionário autoadministrado distribuído aos indivíduos que tiveram experiência num SPA em Portugal. Os dados foram tratados usando a abordagem PLS. Os resultados revelam que os sinais atmosféricos são importantes antecedentes do relaxamento e do prazer. A sensação de relaxamento é mais importante do que a de prazer para levar à satisfação do indivíduo e ao passa-palavra. Este artigo também assinala importantes implicações para a gestão, limitações e sugestões para investigações futuras. Apontam-se dois aspetos sobre a originalidade desta investigação: a adaptação do modelo S-O-R ao contexto dos SPA e a introdução da satisfação como um resultado do relaxamento em vez da excitação.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Quantum-assisted Monte Carlo algorithms for fermions
Creators: name: Xu, Xiaosi
name: Li, Ying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computing is a promising way to systematically solve the longstanding computational problem, the ground state of a many-body fermion system. Many efforts have been made to realise certain forms of quantum advantage in this problem, for instance, the development of variational quantum algorithms. A recent work by Huggins et al. reports a novel candidate, i.e. a quantum-classical hybrid Monte Carlo algorithm with a reduced bias in comparison to its fully-classical counterpart. In this paper, we propose a family of scalable quantum-assisted Monte Carlo algorithms where the quantum computer is used at its minimal cost and still can reduce the bias. By incorporating a Bayesian inference approach, we can achieve this quantum-facilitated bias reduction with a much smaller quantum-computing cost than taking empirical mean in amplitude estimation. Besides, we show that the hybrid Monte Carlo framework is a general way to suppress errors in the ground state obtained from classical algorithms. Our work provides a Monte Carlo toolkit for achieving quantum-enhanced calculation of fermion systems on near-term quantum devices.
Erythrinidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Characiformes
Erythrinidae

description: Family Erythrinidae   Hoplias malabaricus (Bloch)
 Sphincterodiplostomum musculosum Dubois, 1936
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 31, DOI: 10.5281/zenodo.273687
Fitting and recognition of geometric primitives in segmented 3D point clouds using a localized voting procedure
Creators: name: Raffo, Andrea
name: Romanengo, Chiara
name: Falcidieno, Bianca
name: Biasotti, Silvia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computational Geometry (cs.CG)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.1.2; I.3.5; I.5; J.6
subject: 65D18, 65D17, 68U05, 62H30,

description: The automatic creation of geometric models from point clouds has numerous applications in CAD (e.g., reverse engineering, manufacturing, assembling) and, more in general, in shape modelling and processing. Given a segmented point cloud representing a man-made object, we propose a method for recognizing simple geometric primitives and their interrelationships. Our approach is based on the Hough transform (HT) for its ability to deal with noise, missing parts and outliers. In our method we introduce a novel technique for processing segmented point clouds that, through a voting procedure, is able to provide an initial estimate of the geometric parameters characterizing each primitive type. By using these estimates, we localize the search of the optimal solution in a dimensionally-reduced parameter space thus making it efficient to extend the HT to more primitives than those that are generally found in the literature, i.e. planes and spheres. Then, we extract a number of geometric descriptors that uniquely characterize a segment, and, on the basis of these descriptors, we show how to aggregate parts of primitives (segments). Experiments on both synthetic and industrial scans reveal the robustness of the primitive fitting method and its effectiveness for inferring relations among segments.
O (re)posicionamento do termalismo como estratégia de desenvolvimento turístico. O caso da região Dão-Lafões (NUTS III)
Creators: name: Antunes, Joaquim Gonçalves
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: O termalismo, enquadrado no turismo de saúde e bem-estar, é ainda uma atividade turística de diminuta relevância no contexto do turismo nacional, mas preponderante ao nível do desenvolvimento de algumas regiões. A região Dão-Lafões, onde se localizam seis estâncias termais, assume-se como um exemplo autêntico da importância relativa deste produto turístico para o seu desenvolvimento. As tendências da procura que se têm verificado nos últimos anos evidenciam novas oportunidades para as estâncias termais, orientando o seu (re)posicionamento para um produto compósito, capaz de satisfazer diferentes segmentos de mercado. É nesta perspetiva que se procura estudar o termalismo, baseado numa abordagem integrada dos diversos produtos e necessidades, de modo a criar uma imagem forte que valorize e reforce a dimensão da atratividade e visibilidade de uma estância. A metodologia de investigação assentou num estudo empírico realizado aos termalistas, onde se procurou avaliar a importância dos fatores relacionados com a envolvente da estância e a forma como estes influenciam a fidelização dos termalistas. Os resultados mostram a relevância que estes fatores poderão ter nas futuras decisões estratégicas para o desenvolvimento sustentável daquelas estâncias termais.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Turismo de Saúde: um estudo comparativo
Creators: name: Nora, Paula
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2012

description: Este estudo teve por objetivo comparar o Grupo Apollo Hospitals, considerado uma referência mundial em Turismo de Saúde, com os empreendimentos sul-brasileiros Hotel e Spa Recanto das Águas e Itá Thermas Resort e Spa, por possuírem um departamento específico destinado à qualidade de vida e bem-estar. Foi realizada uma pesquisa de carácter qualitativo, de natureza comparativa e exploratório-descritiva. Para tanto, elegeram-se unidades de significado para a definição de categorias de análise que permitiram determinar quanto essas variáveis se afastam ou se aproximam do modelo indiano, considerado ideal, levando em consideração o fato de a Índia e o Brasil estarem em esferas políticas, sociais, económicas e culturais diferentes. São elas: a) tratamentos de saúde e bem-estar; e b) hotelaria hospitalar. Essa última é subdividida em b1) arquitetura; e b2) atendimento. No estudo, empregou-se pesquisa bibliográfica e documental, entrevistas e observações in loco. Os documentos analisados foram materiais bibliográficos, documentos e matérias publicadas em websites oficiais do governo indiano e documentos acerca da realidade do Apollo Hospitals na sua página na internet, bem como arquivos solicitados para apreciação. As entrevistas foram realizadas com os gestores dos empreendimentos brasileiros, objetos deste estudo. As observações in loco decorreram no Hotel e Spa Recanto das Águas e no Itá Thermas Resort e Spa. Os resultados evidenciaram que o Brasil já possui recursos físicos e humanos suficientes para que seja implantado o Turismo de Saúde, de acordo com os moldes indianos, desde que se respeite as especificidades sociais, culturais, políticas e económicas deste país.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 17/18 (2012)
Hard thermal loops in static background fields
Creators: name: Brandt, F. T.
name: Frenkel, J.
name: Siqueira, J. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the high temperature behavior of retarded thermal loops in static external fields. We employ an analytic continuation of the imaginary time formalism and use a spectral representation of the thermal amplitudes. We show that, to all orders, the leading contributions of static hard thermal loops can be directly obtained by evaluating them at zero external energies and momenta.
description: 5 pages, to be published in The European Physical Journal C
Engraulidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Clupeiformes
Engraulidae

description: Family Engraulidae   Engraulis anchoita Hubbs & Marini
 Cardiocephaloides sp.
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 31, DOI: 10.5281/zenodo.273687
Analog Quantum Approximate Optimization Algorithm
Creators: name: Barraza, Nancy
name: Barrios, Gabriel Alvarado
name: Peng, Jie
name: Lamata, Lucas
name: Solano, Enrique
name: Albarrán-Arriagada, Francisco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present an analog version of the quantum approximate optimization algorithm suitable for current quantum annealers. The central idea of this algorithm is to optimize the schedule function, which defines the adiabatic evolution. It is achieved by choosing a suitable parametrization of the schedule function based on interpolation methods for a fixed time, with the potential to generate any function. This algorithm provides an approximate result of optimization problems that may be developed during the coherence time of current quantum annealers on their way toward quantum advantage.
description: 13 pages, 4 figures
Spin alignment of vector mesons in heavy-ion collisions
Creators: name: Sheng, Xin-Li
name: Oliva, Lucia
name: Liang, Zuo-Tang
name: Wang, Qun
name: Wang, Xin-Nian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Polarized quarks and antiquarks in high-energy heavy-ion collisions can lead to the spin alignment of vector mesons formed by quark coalescence. Using the relativistic spin Boltzmann equation for vector mesons derived from Kadanoff-Baym equations with an effective quark-meson model for strong interaction and quark coalescence model for hadronizaton, we calculate the spin density matrix element $ρ_{00}$ for $ϕ$ mesons and show that anisotropies of local field correlations or fluctuations with respect to the spin quantization direction lead to $ϕ$ meson's spin alignment. We propose that the local correlation or fluctuation of $ϕ$ fields is the dominant mechanism for the observed the $ϕ$ meson's spin alignment and its strength can be extracted from experimental data as functions of collision energies. The calculated transverse momentum dependence of $ρ_{00}$ agrees with STAR's data. We further predict the azimuthal angle dependence of $ρ_{00}$ which can be tested in future experiments.
description: ReVTex 4.1, 14 pages, 4 figures. A large part of the paper has been rewritten with the focus on extracting local correlations or fluctuations of phi fields from STAR's data and predictions for dependences of $\rho_{00}$ on the transverse momentum and azimuthal angle