cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Matching arc complexes: connectedness and hyperbolicity
Creators: name: Aramayona, Javier
name: de Pool, Rodrigo
name: Fernández, Alejandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Addressing a question of Zaremsky, we give conditions on a finite simplicial graph which guarantee that the associated matching arc complex is connected and hyperbolic.
description: This note is part of R.d.P.'s Master Thesis at UAM-ICMAT, and of A.F.'s work within the JAE-Intro programme at CSIC. 10 pages, 2 figures
Novas motivações dos turistas: Uma oportunidade para o território rural. Análise da “Rede das Aldeias do Xisto” no Centro de Portugal
Creators: name: Martinez-Roget, Fidel
name: Moutela, José Alberto Tavares
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2013

description: O ritmo frenético com que se confrontam os cidadãos dos grandes centros urbanos, motivado pelo atual enredo de sociedade, impele os mesmos a que durante o tempo livre procurem nas suas viagens ambientes relaxantes e tranquilos, ambientes esses, nos quais evadem-se das preocupações e impaciências diárias, praticando o que se de denominou por slow tourism. Os territórios rurais, enfrentando sérias dificuldades económicas, demográficas e sociais, podem beneficiar da oportunidade, mediante uma oferta turística que incorpore os recursos locais, de uma forma ordenada e sustentável, para satisfazer esta crescente procura. O caso da “Rede das Aldeias do Xisto”, localizada na região Centro de Portugal, é um exemplo desta convergência entre as novas necessidades da procura turística e do território, com o desenvolvimento de um projeto inovador de Turismo em Espaço Rural (TER). Neste trabalho, apresenta-se os principais resultados de uma investigação na qual se analisa o grau de conhecimento que os residentes portugueses têm desta rede de aldeias, as suas motivações, a satisfação obtida com a viagem e as suas implicações na lealdade.
description: Revista Turismo & Desenvolvimento, n.º 19 (2013)
Value-chain oriented identification of indicators to establish a comprehensive process improvement framework
Creators: name: Riemann, Ute
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: The process development and optimization potential needs to be driven by the individial coporate value chain. The identification of this specific value chain and the related indicators is essential to limit the scope of any analysis and optimization to the core business The process framework consisting of clearly defined value chain, the related processes and the corresponding indicators is a pre-requisite for a meaningful and efficient process analysis and continuous process optimization.
description: Process framework, value chain, business processes, indicators
Identifying Pauli spin blockade using deep learning
Creators: name: Schuff, Jonas
name: Lennon, Dominic T.
name: Geyer, Simon
name: Craig, David L.
name: Fedele, Federico
name: Vigneau, Florian
name: Camenzind, Leon C.
name: Kuhlmann, Andreas V.
name: Briggs, G. Andrew D.
name: Zumbühl, Dominik M.
name: Sejdinovic, Dino
name: Ares, Natalia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Machine Learning (cs.LG)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Pauli spin blockade (PSB) can be employed as a great resource for spin qubit initialisation and readout even at elevated temperatures but it can be difficult to identify. We present a machine learning algorithm capable of automatically identifying PSB using charge transport measurements. The scarcity of PSB data is circumvented by training the algorithm with simulated data and by using cross-device validation. We demonstrate our approach on a silicon field-effect transistor device and report an accuracy of 96% on different test devices, giving evidence that the approach is robust to device variability. The approach is expected to be employable across all types of quantum dot devices.
Optimization and Noise Analysis of the Quantum Algorithm for Solving One-Dimensional Poisson Equation
Creators: name: Cui, Guolong
name: Wang, Zhimin
name: Wang, Shengbin
name: Shi, Shangshang
name: Shang, Ruimin
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: Solving differential equations is one of the most promising applications of quantum computing. Recently we proposed an efficient quantum algorithm for solving one-dimensional Poisson equation avoiding the need to perform quantum arithmetic or Hamiltonian simulation. In this letter, we further develop this algorithm to make it closer to the real application on the noisy intermediate-scale quantum (NISQ) devices. To this end, we first develop a new way of performing the sine transformation, and based on it the algorithm is optimized by reducing the depth of the circuit from n2 to n. Then, we analyze the effect of common noise existing in the real quantum devices on our algorithm using the IBM Qiskit toolkit. We find that the phase damping noise has little effect on our algorithm, while the bit flip noise has the greatest impact. In addition, threshold errors of the quantum gates are obtained to make the fidelity of the circuit output being greater than 90%. The results of noise analysis will provide a good guidance for the subsequent work of error mitigation and error correction for our algorithm. The noise-analysis method developed in this work can be used for other algorithms to be executed on the NISQ devices.
description: 20 pages, 9 figures
Sequential Selection of Correlated Ads by POMDPs
Creators: name: Yuan, Shuai
name: Wang, Jun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: I.2.6; I.2.8

description: Online advertising has become a key source of revenue for both web search engines and online publishers. For them, the ability of allocating right ads to right webpages is critical because any mismatched ads would not only harm web users' satisfactions but also lower the ad income. In this paper, we study how online publishers could optimally select ads to maximize their ad incomes over time. The conventional offline, content-based matching between webpages and ads is a fine start but cannot solve the problem completely because good matching does not necessarily lead to good payoff. Moreover, with the limited display impressions, we need to balance the need of selecting ads to learn true ad payoffs (exploration) with that of allocating ads to generate high immediate payoffs based on the current belief (exploitation). In this paper, we address the problem by employing Partially observable Markov decision processes (POMDPs) and discuss how to utilize the correlation of ads to improve the efficiency of the exploration and increase ad incomes in a long run. Our mathematical derivation shows that the belief states of correlated ads can be naturally updated using a formula similar to collaborative filtering. To test our model, a real world ad dataset from a major search engine is collected and categorized. Experimenting over the data, we provide an analyse of the effect of the underlying parameters, and demonstrate that our algorithms significantly outperform other strong baselines.
Comparative genomics in “Candidatus Kuenenia stuttgartiensis” reveal high genomic plasticity in the overall genome structure, CRISPR loci and surface proteins
Creators: name: Ding, Chang
name: Adrian, Lorenz
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
subject: “Ca. Kuenenia stuttgartiensis”
subject: genome sequencing
subject: proteomics
subject: CRISPR
subject: nitrite reductase
subject: S-layer protein

description: Background: Anaerobic ammonium oxidizing bacteria (anammox bacteria) are contributing significantly to the nitrogen cycle and are successfully used in wastewater treatment. Due to the lack of complete genomes in the databases, little is known about the stability and variability of their genomes and how the genomes evolve in response to changing environments. Results: Here we report the complete genome of the anammox bacterium “Candidatus Kuenenia stuttgartiensis” strain CSTR1 which was enriched planktonically in a semi-continuous stirred-tank reactor. A comparison of the genome of strain CSTR1 with the genome of “Ca. Kuenenia stuttgartiensis” MBR1 and the draft genome of KUST showed > 99% average nucleotide identity among all. Rearrangements of large genomic regions were observed, most of which were associated with transposase genes. Phylogenetic analysis suggests that strain MBR1 is more distantly related to the other two strains. Proteomic analysis of actively growing cells of strain CSTR1 (growth rate ~ 0.33 d− 1) failed to detect the annotated cytochrome cd1-type nitrite reductase (NirS) although in total 1189 proteins were found in the proteome. Yet, this NirS was expressed when strain CSTR1 was under stress or starvation (growth rate < 0.06 d− 1). We also observed large sequence shifts in the strongly expressed S-layer protein compared to other “Ca. Kuenenia” strains, indicating the formation of hybrids of genes encoding the surface proteins. Conclusions: “Ca. Kuenenia” strains appear to be relatively stable in their basic physiological traits, but show high variability in overall genome structure and surface proteins.
Eucotylidae Teixeira
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Plagiorchiida
Eucotylidae

description: Family Eucotylidae Teixeira de Freitas, 1951   Tanaisia Skrjabin, 1924
 Tanaisia fedtschenkoi Skrjabin, 1924
 Hosts: Larus cirrocephalus Vieillot, L. maculipennis Lichtenstein. Site of infection: not reported.
Locality: Mar del Plata city, Buenos Aires Province. Reference: Labriola & Suriano (2001).
 Tanaisia serrata Szidat, 1961
 Host: Fulica leucoptera Vieillot.
Site of infection: kidney and ureter.
Locality: Quequén River, Buenos Aires Province. Reference: Szidat (1961).
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 4, DOI: 10.5281/zenodo.273687
A two-stage numerical approach for the sparse initial source identification of a diffusion-advection equation
Creators: name: Biccari, Umberto
name: Song, Yongcun
name: Yuan, Xiaoming
name: Zuazua, Enrique
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider the problem of identifying a sparse initial source condition to achieve a given state distribution of a diffusion-advection partial differential equation after a given final time. The initial condition is assumed to be a finite combination of Dirac measures. The locations and intensities of this initial condition are required to be identified. This problem is known to be exponentially ill-posed because of the strong diffusive and smoothing effects. We propose a two-stage numerical approach to treat this problem. At the first stage, to obtain a sparse initial condition with the desire of achieving the given state subject to a certain tolerance, we propose an optimal control problem involving sparsity-promoting and ill-posedness-avoiding terms in the cost functional, and introduce a generalized primal-dual algorithm for this optimal control problem. At the second stage, the initial condition obtained from the optimal control problem is further enhanced by identifying its locations and intensities in its representation of the combination of Dirac measures. This two-stage numerical approach is shown to be easily implementable and its efficiency in short time horizons is promisingly validated by the results of numerical experiments. Some discussions on long time horizons are also included.
Importância das empresas de pequena e micro dimensão em termos de investimento e criação de emprego no setor do turismo no período de 1994-2006
Creators: name: Costa, Rui
name: Costa, Carlos
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2013

description: O setor do Turismo constitui-se como um dos principais motores de crescimento e desenvolvimento para a economia de vários países, sendo considerado como um setor estratégico e fundamental para a resolução de problemas como o défice da balança de pagamentos e a criação de emprego. O setor privado desempenha um papel central no turismo, dado que é responsável pelo fornecimento da maior parte dos serviços e atividades de turismo, realizando a maior parte do investimento, contribuindo para a dinamização e modernização regional e local e impulsionando o investimento em infraestruturas básicas de apoio ao desenvolvimento do turismo ao nível regional e local. Contudo, o setor do turismo, apesar da enorme vitalidade e dinâmica da sua estrutura empresarial, esta é constituída maioritariamente por empresas de pequena e micro dimensão, o que, dada a sua reduzida dimensão e estrutura familiar, apresentam algumas fragilidades em termos de investimento e financiamento, que as inibe de crescer e se desenvolver. Nesse sentido, é fundamental analisar de uma forma rigorosa quais as potencialidades efetivas das empresas de pequena e micro dimensão, na criação de condições para o crescimento e desenvolvimento do turismo ao nível regional e local.
description: Revista Turismo & Desenvolvimento, n.º 19 (2013)
Necesidad de la implementación de la Gestión Integral de Destinos de Sol y Playa: Un estudio de caso
Creators: name: Hernández Companioni, José Carlos
name: Riverón Portela, Otoniel
name: Espinosa Leyva, Menelio
name: Falcón Rodríguez, María Caridad
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2013

description: La Gestión Integral de Destinos Turísticos (GID) viene a ser una condición necesaria para poder dar una respuesta acertada a las tendencias actuales de desarrollo del turismo y del comportamiento de la demanda propias del tránsito de la fase fordista a la postfordista del turismo y al difícil entorno generado por la globalización, imponiendo nuevos retos a los destinos tradicionales de Sol y Playa, teniendo que establecer estrategias de regionalización, diversificación de la oferta, nuevas dinámicas en la relación sector público-privado y nuevos criterios de planificación y gestión medioambiental, siendo precisamente la GID la herramienta que se adopta para alcanzarlo, de forma tal, que sean capaces de satisfacer las expectativas de los segmentos de mercados a los cuales se dirige la oferta, a la vez, que desarrollen un turismo responsable que contribuya a la sostenibilidad. La práctica ha demostrado que la ausencia de una adecuada gestión conduce a que muchos destinos manifiesten síntomas de declive o obsolescencia, aún en etapas relativamente tempranas de vida y que se vean limitados para aprovechar sus ventajas comparativas a partir de la dotación de recursos que poseen y desarrollar ventajas competitivas que contribuyan al posicionamiento del mismo, lo cual se demuestra en el presente trabajo, a partir de un estudio de caso de un destino con estas características.
description: Revista Turismo & Desenvolvimento, n.º 19 (2013)
Optimal Stroke Learning with Policy Gradient Approach for Robotic Table Tennis
Creators: name: Gao, Yapeng
name: Tebbe, Jonas
name: Zell, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Learning to play table tennis is a challenging task for robots, as a wide variety of strokes required. Recent advances have shown that deep Reinforcement Learning (RL) is able to successfully learn the optimal actions in a simulated environment. However, the applicability of RL in real scenarios remains limited due to the high exploration effort. In this work, we propose a realistic simulation environment in which multiple models are built for the dynamics of the ball and the kinematics of the robot. Instead of training an end-to-end RL model, a novel policy gradient approach with TD3 backbone is proposed to learn the racket strokes based on the predicted state of the ball at the hitting time. In the experiments, we show that the proposed approach significantly outperforms the existing RL methods in simulation. Furthermore, to cross the domain from simulation to reality, we adopt an efficient retraining method and test it in three real scenarios. The resulting success rate is 98% and the distance error is around 24.9 cm. The total training time is about 1.5 hours.
Immobilization of Cr(VI) by sulphate green rust and sulphidized nanoscale zerovalent iron in sand media: batch and column studies
Creators: name: Digiacomo, Flavia
name: Tobler, Dominique J.
name: Held, Thomas
name: Neumann, Thomas
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften
subject: sulphate green rust
subject: sulphidized nZVI
subject: hexavalent chromium
subject: chromate
subject: packed bed columns
subject: reduction
subject: remediation

description: Chromate, Cr(VI), contamination in soil and groundwater poses serious threat to living organisms and environmental health worldwide. Sulphate green rust (GRSO4), a naturally occurring mixed-valent iron layered double hydroxide has shown to be highly effective in the reduction of Cr(VI) to poorly soluble Cr(III), giving promise for its use as reactant for in situ remedial applications. However, little is known about its immobilization efficiency inside porous geological media, such as soils and sediments, where this reactant would ultimately be applied. In this study, we tested the removal of Cr(VI) by GRSO4 in quartz sand fixed-bed column systems (diameter × length = 1.4 cm × 11 cm), under anoxic conditions. Cr(VI) removal efficiency (relative to the available reducing equivalents in the added GRSO4) was determined by evaluating breakthrough curves performed at different inlet Cr(VI) concentrations (0.125–1 mM) which are representative of Cr(VI) concentrations found at contaminated sites, different flow rates (0.25–3 ml/min) and solution pH (4.5, 7 and 9.5). Results showed that (i) increasing Cr(VI) inlet concentration substantially decreased Cr(VI) removal efficiency of GRSO4, (ii) flow rates had a lower impact on removal efficiencies, although values tended to be lower at higher flow rates, and (iii) Cr(VI) removal was enhanced at acidic pH conditions compared to neutral and alkaline conditions. For comparison, Cr(VI) removal by sulphidized nanoscale zerovalent iron (S-nZVI) in identical column experiments was substantially lower, indicating that S-nZVI reactivity with Cr(VI) is much slower compared to GRSO4. Overall, GRSO4 performed reasonably well, even at the highest tested flow rate, showing its versatility and suitability for Cr(VI) remediation applications in high flow environments.
Relativistic spin dynamics conditioned by dark matter axions
Creators: name: Silenko, Alexander J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The relativistic spin dynamics defined by the pseudoscalar field of dark matter axions is rigorously determined. The relativistic Hamiltonian in the Foldy-Wouthuysen representation is derived. It agrees with the previously obtained nonrelativistic Hamiltonians and the relativistic classical estimation of the axion wind effect. In the relativistic Hamiltonian, the biggest term describes the extraordinary (three orders of magnitude) enhancement of the axion wind effect in storage ring experiments as compared with experiments with immobile particles. This term defines the spin rotation about the longitudinal axis. The effects caused by the axion-induced oscillating EDM and the axion wind consist in the spin rotations about the different horizontal axes and phases of stimulating oscillations differ by $π/2$. Experiments in a search for dark matter axions has been discussed. The two experimental designs for axion search experiments in storage rings have been elaborated.
description: 7 pages, final version
Measurement of the 33S(α,p)36Cl cross section: Implications for production of 36Cl in the early Solar System
Creators: name: Bowers, Matthew
name: Kashiv, Yoav
name: Bauder, William
name: Beard, Mary
name: Collon, Philippe
name: Lu, Wenting
name: Ostdiek, Karen
name: Robertson, Daniel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Short-lived radionuclides (SLRs) with lifetimes τ< 100 Ma are known to have been extant when the Solar System formed over 4.5 billion years ago. Identifying the sources of SLRs is important for understanding the timescales of Solar System formation and processes that occurred early in its history. Extinct 36Cl (t_1/2 = 0.301 Ma) is thought to have been produced by interaction of solar energetic particles (SEPs), emitted by the young Sun, with gas and dust in the nascent Solar System. However, models that calculate SLR production in the early Solar System (ESS) lack experimental data for the 36Cl production reactions. We present here the first measurement of the cross section of one of the main 36Cl production reactions, 33S(α,p)36Cl, in the energy range 0.70 - 2.42 MeV/A. The cross section measurement was performed by bombarding a target and collecting the recoiled 36Cl atoms produced in the reaction, chemically processing the samples, and measuring the 36Cl/Cl ratio of the activated samples with accelerator mass spectrometry (AMS). The experimental results were found to be systematically higher than the cross sections used in previous local irradiation models and other Hauser-Feshbach calculated predictions. However, the effects of the experimentally measured cross sections on the modeled production of 36Cl in the early Solar System were found to be minimal. Reactions channels involving S targets dominate 36Cl production, but the astrophysical event parameters can dramatically change each reactions' relative contribution.
description: 10 pages
Certified Everlasting Zero-Knowledge Proof for QMA
Creators: name: Hiroka, Taiga
name: Morimae, Tomoyuki
name: Nishimaki, Ryo
name: Yamakawa, Takashi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In known constructions of classical zero-knowledge protocols for NP, either of zero-knowledge or soundness holds only against computationally bounded adversaries. Indeed, achieving both statistical zero-knowledge and statistical soundness at the same time with classical verifier is impossible for NP unless the polynomial-time hierarchy collapses, and it is also believed to be impossible even with a quantum verifier. In this work, we introduce a novel compromise, which we call the certified everlasting zero-knowledge proof for QMA. It is a computational zero-knowledge proof for QMA, but the verifier issues a classical certificate that shows that the verifier has deleted its quantum information. If the certificate is valid, even unbounded malicious verifier can no longer learn anything beyond the validity of the statement. We construct a certified everlasting zero-knowledge proof for QMA. For the construction, we introduce a new quantum cryptographic primitive, which we call commitment with statistical binding and certified everlasting hiding, where the hiding property becomes statistical once the receiver has issued a valid certificate that shows that the receiver has deleted the committed information. We construct commitment with statistical binding and certified everlasting hiding from quantum encryption with certified deletion by Broadbent and Islam [TCC 2020] (in a black box way), and then combine it with the quantum sigma-protocol for QMA by Broadbent and Grilo [FOCS 2020] to construct the certified everlasting zero-knowledge proof for QMA. Our constructions are secure in the quantum random oracle model. Commitment with statistical binding and certified everlasting hiding itself is of independent interest, and there will be many other useful applications beyond zero-knowledge.
description: 33 pages
On the Random Dynamics of Volterra Quadratic Operators
Creators: name: Jamilov, U. U.
name: Scheutzow, M.
name: Wilke-Berenguer, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37H99, 37N25, 92D25

description: We consider random dynamical systems generated by a special class of Volterra quadratic stochastic operators on the simplex $S^{m-1}$. We prove that in contrast to the deterministic set-up the trajectories of the random dynamical system almost surely converge to one of the vertices of the simplex $S^{m-1}$ implying the survival of only one species. We also show that the minimal random point attractor of the system equals the set of all vertices. The convergence proof relies on a martingale-type limit theorem which we prove in the appendix.
description: 16 pages
Die Zuschauer: "Hier werden Schwerter und Bayonette haarscharf geschliffen! Na det sind scheene Aussichten!" Schleifer Drauf: "Nanu! seid man nicht jleich bange, det jeschieht zu der juten Bürger Besten!" Die Zuschauer: "Na so! Det ist wat annerst."; [1849?]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Text in deutscher Kurrentschrift
Women in Brazil with higher education in tourism: Preliminary results of the Gentour Project
Creators: name: Costa, Helena Araújo
name: Costa, Carlos
name: Breda, Zélia
name: Caçador, Sandra
name: Carvalho, Inês
name: Vieira, Rafaela
Publisher: name: Journal of Tourism & Development
Year: 2013

description: The paper aims to identify the profile of women who hold a higher education degree in tourism – from technological training to postgraduate studies – in Brazil, based on results of the Gentour Project. The research methods were quantitative and data collection was carried out through an online survey. A convenience sample included graduates from Brazilian higher education institutions. After a consistency analysis, 421 respondents were considered valid. The data analysis applied univariate and bivariate statistical techniques. Results indicate that a few aspects are similar when comparing male and female graduates, such as the waiting time for their first job, the time in their current job, the higher average salaries obtained in the public sector, the average time of unemployment and the most recurrent reason for being unemployed. In addition, gender was not identified as a barrier in the process of finding a job, neither by male graduates nor by female graduates. Data suggests that there are differences between men and women regarding the highest academic levels, entrepreneurship rate, working hours, leadership positions and income. All these variables seem to be gender-related, according to this research. Although discrimination in professional life is not felt very often, women feel disadvantaged regarding salaries and bonuses; a feeling that is confirmed by a 29.7% gender pay gap. Furthermore, other remarkable features can be observed, such as the correlation between the educational degree and income, which demonstrates that the pay gap between men and women decreases with higher educational levels, and also the relation between professional activities and motherhood, evoking a relationship between motherhood and job stability, as well as with possible better incomes.
description: Journal of Tourism & Development, n.º 19 (2013)
Superglass formation in an atomic BEC with competing long-range interactions
Creators: name: Ostermann, Stefan
name: Walther, Valentin
name: Yelin, Susanne F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The complex dynamical phases of quantum systems are dictated by atomic interactions that usually evoke an emergent periodic order. Here, we study a quantum many-body system with two competing and substantially different long-range interaction potentials where the dynamical instability towards density order can give way to a superglass phase, i. e., a superfluid disordered amorphous solid, which exhibits local density modulations but no long-range periodic order. We consider a two-dimensional BEC in the Rydberg-dressing regime coupled to an optical standing wave resonator. The dynamic pattern formation in this system is governed by the competition between the two involved interaction potentials: repulsive soft-core interactions arising due to Rydberg dressing and infinite-range sign changing interactions induced by the cavity photons. The superglass phase is found when the two interaction potentials introduce incommensurate length scales. The dynamic formation of this peculiar phase without any externally added disorder is driven by quantum fluctuations and can be attributed to frustration induced by the two competing interaction energies and length scales.
description: new title, added references
Magnetic quantum currents in the presence of a Neumann wall
Creators: name: Raymond, Nicolas
name: Soccorsi, Éric
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the Schrödinger operator with constant transverse magnetic field on a half-plane, endowed with Neumann boundary conditions. We study the low energy currents flowing along the boundary and we establish a Limiting Absorption Principle for the magnetic Neumann Laplacian under perturbation of an electric potential.
Anomalous aggregation regimes of temperature-dependent Smoluchowski equations
Creators: name: Osinsky, A. I.
name: Brilliantov, N. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Temperature-dependent Smoluchowski equations describe the ballistic agglomeration. In contrast to the standard Smoluchowski equations for the evolution of cluster densities with constant rate coefficients, the temperature-dependent equations describe both -- the evolution of the densities as well as cluster temperatures, which determine the aggregation rates. To solve these equations, we develop a novel Monte Carlo technique based on the low-rank approximation for the aggregation kernel. Using this highly effective approach, we perform a comprehensive study of the phase diagram of the system and reveal a few surprising regimes, including permanent temperature growth and "density separation", with a large gap in the size distribution for middle-size clusters. We perform classification of the aggregation kernels for the temperature-dependent equations and conjecture the lack of gelation. The results of our scaling analysis agree well with the simulation data.
description: Submitted to Physical Review E
Compatibility of Braiding and Fusion on Wire Networks
Creators: name: Conlon, Aaron
name: Slingerland, Joost K
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exchanging particles on graphs, or more concretely on networks of quantum wires, has been proposed as a means to perform fault tolerant quantum computation. This was inspired by braiding of anyons in planar systems. However, exchanges on a graph are not governed by the usual braid group but instead by a graph braid group. By imposing compatibility of graph braiding with fusion of topological charges, we obtain generalized hexagon equations. We find the usual planar anyons solutions but also more general braid actions. We illustrate this with Abelian, Fibonacci and Ising fusion rules.
description: 7 pages, 4 figures
Fast and accurate imputation of summary statistics enhances evidence of functional enrichment
Creators: name: Pasaniuc, Bogdan
name: Zaitlen, Noah
name: Shi, Huwenbo
name: Bhatia, Gaurav
name: Gusev, Alexander
name: Pickrell, Joseph
name: Hirschhorn, Joel
name: Strachan, David P
name: Patterson, Nick
name: Price, Alkes L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Genomics (q-bio.GN)
subject: Populations and Evolution (q-bio.PE)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Imputation using external reference panels is a widely used approach for increasing power in GWAS and meta-analysis. Existing HMM-based imputation approaches require individual-level genotypes. Here, we develop a new method for Gaussian imputation from summary association statistics, a type of data that is becoming widely available. In simulations using 1000 Genomes (1000G) data, this method recovers 84% (54%) of the effective sample size for common (>5%) and low-frequency (1-5%) variants (increasing to 87% (60%) when summary LD information is available from target samples) versus 89% (67%) for HMM-based imputation, which cannot be applied to summary statistics. Our approach accounts for the limited sample size of the reference panel, a crucial step to eliminate false-positive associations, and is computationally very fast. As an empirical demonstration, we apply our method to 7 case-control phenotypes from the WTCCC data and a study of height in the British 1958 birth cohort (1958BC). Gaussian imputation from summary statistics recovers 95% (105%) of the effective sample size (as quantified by the ratio of $χ^2$ association statistics) compared to HMM-based imputation from individual-level genotypes at the 227 (176) published SNPs in the WTCCC (1958BC height) data. In addition, for publicly available summary statistics from large meta-analyses of 4 lipid traits, we publicly release imputed summary statistics at 1000G SNPs, which could not have been obtained using previously published methods, and demonstrate their accuracy by masking subsets of the data. We show that 1000G imputation using our approach increases the magnitude and statistical evidence of enrichment at genic vs. non-genic loci for these traits, as compared to an analysis without 1000G imputation. Thus, imputation of summary statistics will be a valuable tool in future functional enrichment analyses.
description: 32 pages, 4 figures
Modelação da procura turística em Portugal: A metodologia Box-Jenkins, os modelos Naïf e o modelo de alisamento exponencial
Creators: name: Daniel, Ana Cristina Marques
name: Rodrigues, Paulo Manuel Marques
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2013

description: Este artigo modela a procura turística em Portugal e analisa a precisão das previsões de vários modelos univariados – a metodologia de Box-Jenkins (1976), os modelos Naïf, e o modelo de alisamento exponencial. Como medida de procura turística optou-se pelo número de dormidas mensais nos estabelecimentos hoteleiros, tendo-se considerado as primeiras observações (de Janeiro de 1979 a Dezembro de 2005) para estimar os modelos, e as restantes (de Janeiro de 2006 a Dezembro de 2009) para analisar o desempenho de previsão dos modelos. Com exceção de Portugal, país para o qual o modelo de alisamento exponencial apresentou melhores resultados, para todos os outros países foram os SARIMA de Box-Jenkins que se destacaram enquanto modelos de previsão, o que nos permitiu afirmar que a complexidade dos modelos pode produzir melhores resultados no desempenho da previsão. Em termos de resultados deste estudo foi também reconhecida a superioridade dos modelos Naïf quando se consideram os valores homólogos dos períodos anteriores, se comparados com os modelos Naïf dos períodos imediatamente anteriores, resultados que vêm mais uma vez reforçar o peso da sazonalidade no sector do turismo.
description: Revista Turismo & Desenvolvimento, n.º 19 (2013)
Cyclocoelidae Kossak 1911
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Plagiorchiida
Cyclocoelidae

description: Family Cyclocoelidae Kossak, 1911   Cyclocoelum Brandes, 1892
 Cyclocoelum (Cyclocoelum) mutabile (Zeder, 1800)
 Syns.: Monostomum mutabile Lahille, 1918
 Cyclocoelum paradoxum Marcó del Pont, 1926 Cyclocoelum lahillei Dollfus, 1948
 Hosts: Fulica armillata Vieillot, Fulica sp., Gallinula chloropus galeata (Lichtenstein), Pardirallus mac­
 ulatus maculatus (Boddaert).
Site of infection: air sacs.
Localities: La Plata Zoological Garden, La Plata; Delta del Paraná, Buenos Aires Province. References: Lahille (1918), Marcó del Pont (1926), Szidat (1963b).
 Cyclocoelum (Cyclocoelum) microstomum (Creplin, 1829) Host: Fulica armillata Vieillot.
Site of infection: not reported.
Locality: Río de la Plata, Buenos Aires Province.
 Life history: Hi1 and Hi2: Heleobia parchappei (d’Orbigny) from Quequén River, Buenos Aires Province;
metacercariae encysted in visceral cavity.
Reference: Szidat (1963b).
 Hyptiasmus Kossack, 1911
 Hyptiasmus brumpti Dollfus, 1948
 Syn.: H. oculeus de Szidat & Szidat, 1966
 Host: Fulica leucoptera Vieillot.
 Site of infection: nasal and infraorbital cavities. Locality: Quequén River, Buenos Aires Province. Life history: Hi1: Heleobia parchappei (d’Orbigny) (natural host) from Quequén River, Buenos Aires
Province.
References: Szidat (1963a), Szidat & Szidat (1966).
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 3, DOI: 10.5281/zenodo.273687
Chiral phase transition with mixing between scalar quarkonium and tetraquark
Creators: name: Mukherjee, Tamal K.
name: Huang, Mei
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the framework of two-flavor extended linear sigma model with mixing between scalar quarkonium and tetraquark, we investigate the role of the tetraquark in the chiral phase transition. We explore various scenarios depending on the value of various parameters in our model. The physical mass spectrum of mesons put a tight constraint on the parameter set of our model. We find a sufficiently strong cubic self interaction of the tetraquark field can drive the chiral phase transition to first order even at zero quark chemical potential. Weak or absence of the cubic self interaction term of the tetraquark field make the chiral phase transition crossover at vanishing density.
description: 12 pages, 9 figures, typos have been corrected
School Virus Infection Simulator for Customizing School Schedules During COVID-19
Creators: name: Takahashi, Satoshi
name: Kitazawa, Masaki
name: Yoshikawa, Atsushi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Multiagent Systems (cs.MA)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: During the Coronavirus 2019 (the covid-19) pandemic, schools continuously strive to provide consistent education to their students. Teachers and education policymakers are seeking ways to re-open schools, as it is necessary for community and economic development. However, in light of the pandemic, schools require customized schedules that can address the health concerns and safety of the students considering classroom sizes, air conditioning equipment, classroom systems, e.g., self-contained or compartmentalized. To solve this issue, we developed the School-Virus-Infection-Simulator (SVIS) for teachers and education policymakers. SVIS simulates the spread of infection at a school considering the students' lesson schedules, classroom volume, air circulation rates in classrooms, and infectability of the students. Thus, teachers and education policymakers can simulate how their school schedules can impact current health concerns. We then demonstrate the impact of several school schedules in self-contained and departmentalized classrooms and evaluate them in terms of the maximum number of students infected simultaneously and the percentage of face-to-face lessons. The results show that increasing classroom ventilation rate is effective, however, the impact is not stable compared to customizing school schedules, in addition, school schedules can differently impact the maximum number of students infected depending on whether classrooms are self-contained or compartmentalized. It was found that one of school schedules had a higher maximum number of students infected, compared to schedules with a higher percentage of face-to-face lessons. SVIS and the simulation results can help teachers and education policymakers plan school schedules appropriately in order to reduce the maximum number of students infected, while also maintaining a certain percentage of face-to-face lessons.
description: 10 pages, 10 figures, https://github.com/satoshi-takahashi-lab/school-virus-infection-simulator
The determinants of length of stay in the Azores: A count model approach
Creators: name: Menezes, António Gomes De
name: Moniz, Ana Isabel
Publisher: name: Journal of Tourism & Development
Year: 2013

description: This paper employs count data models to estimate the determinants of length of stay, as count models overcome censoring and truncation data issues associated with the positive integer nature of length of stay. Length of stay is critical to study consumption of local resources. This paper employs a rich micro dataset on tourists departing the Azores, a group of small Portuguese islands, widely perceived as a tourist destination with high growth potential due to its unique nature, which, hence, must be addressed with care given its small carrying capacity. This paper looks after the relationship between destination image and tourists’ behavior, focusing on the influence of destination image on length of stay. Environmental attitudes and destination image, constructed from a factor analysis exercise, also influence length of stay. It is found that sociodemographic profiles and trip attributes are important determinants of length of stay. The results suggest that promoting the Azores for its nature, landscape, remoteness, weather and safety may increase length of stay, unlike cultural heritage. Our framework provides an interesting tool for policymakers to analyse the determinants of length of stay, and, concomitantly, consumption of local resources. Policy implications are discussed.
description: Journal of Tourism & Development, n.º 19 (2013)
Cathaemasiidae Fuhrmann 1928
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Plagiorchiida
Cathaemasiidae

description: Family Cathaemasiidae Fuhrmann, 1928   Cathaemasia Looss, 1899
 Cathaemasia callis (Teixeira de Freitas, 1941) Kostadinova, 2005 Syn Cathaemasioides callis Teixeira de Freitas, 1941 Host: Ciconia maguari (Gmelin).
Site of infection: esophagus.
Locality: not reported.
 Reference: Boero et al. (1972a).
 Comments: Kostadinova (2005b) considers the genus Cathaemasioides Teixeira de Freitas, 1941 as a
 synonym of Cathaemasia.
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 12, DOI: 10.5281/zenodo.273687
Psilostomidae Looss 1900
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Plagiorchiida
Psilostomidae

description: Family Psilostomidae Looss, 1900   Psilochasmus Lühe, 1909
 Psilochasmus oxyurus (Creplin, 1825) Lühe, 1910
 Natural hosts: Chauna torquata (Oken), Anas georgica spinicauda Vieillot, Larus maculipennis Lichten­
stein.
 Experimental hosts: Anas platyrhynchos L., Gallus gallus domesticus (L.). Site of infection: small intestine.
 Localities: Chascomús lagoon; La Plata Zoological Garden, Mar del Plata city, Buenos Aires Province. Life history: Hi1 and Hi2: Heleobia australis (d'Orbigny) (natural host) from Chascomús, Buenos Aires
Province.
References: Szidat (1957), Labriola & Suriano (2001).
 Ribeiroia Travassos, 1939 Ribeiroia ondatrae (Price, 1931) Price, 1942
 Hosts: Spheniscus magellanicus (Forster), Ardea alba egretta Gmelin, Phalacrocorax brasilianus (Gmelin).
Site of infection: proventriculus, intestine.
Localities: La Plata Zoological Gargen, La Plata and De Monte lagoon, Buenos Aires Province; Obras Sanitarias, Buenos Aires city.
 References: Boero et al. (1972a), Ostrowski de Núñez (1968b), Labriola & Suriano (1998). Comments: Cited by Boero et al. (1972a) as R. insignis Travassos, 1944.
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 pages 12-13, DOI: 10.5281/zenodo.273687
Interfacial activity dynamics of confined active droplets
Creators: name: Ramesh, Prashanth
name: Hokmabad, Babak Vajdi
name: Mathijssen, Arnold J. T. M.
name: Pushkin, Dmitri O.
name: Maass, Corinna C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Active emulsions can spontaneously form self-propelled droplets or phoretic micropumps. It has been predicted that the interaction with their self-generated chemical fields can lead to multistable higher-order flows and chemodynamic phenomena. However, it remains unclear how such reaction-advection-diffusion instabilities can emerge from the interplay between chemical reactions and interfacial hydrodynamics. Here, we simultaneously measure the flow fields and the chemical concentration fields using dual-channel microscopy for oil droplets that dynamically solubilize in a supramicellar aqueous surfactant solution. We developed an experimentally tractable setup with micropumps, droplets that are pinned between the top and bottom surfaces of a microfluidic reservoir, which we compare directly to predictions from a Brinkman squirmer model to account for the confinement. With increasing droplet radius, we observe (i) a migration of vortex flows from the posterior to the anterior of the droplet, analogous to a transition from pusher- to puller-type swimmers, (ii) a bistability between dipolar and quadrupolar flow modes, and, eventually, (iii) a transition to multipolar modes. We also investigate how the dynamics evolve over long time periods. Together, our observations suggest that a local build-up of chemical products leads to a saturation of the surface, which controls the propulsion mechanism. These multistable dynamics can be explained by the competing time scales of slow micellar diffusion governing the chemical buildup and faster molecular diffusion powering the underlying transport mechanism. Our results are directly relevant to phoretic micropumps, but also shed light on the interfacial activity dynamics of self-propelled droplets and other active emulsion systems