cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Deformation dynamics of an oil droplet into a crescent shape during intermittent motion
Creators: name: Otani, Sayaka
name: Ito, Hiroaki
name: Nomoto, Tomonori
name: Fujinami, Masanori
name: Gorecki, Jerzy
name: Kitahata, Hiroyuki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A paraffin droplet containing camphor and oil red O (dye) floating on the water surface shows spontaneous motion and deformation generated by the surface tension gradient around the droplet. We focused on the intermittent motion with a pronounced deformation into a crescent shape observed at specific concentrations of camphor and oil red O. We quantitatively analyzed the time changes in the droplet deformation and investigated the role of the oil red O by measuring the time-dependent paraffin/water interfacial tension with the pendant drop method. The observed effect can be explained by the active role of the oil red O molecules at the paraffin/water interface. The interfacial tension decreases gradually after the interface formation, allowing for the dynamic deformation of the droplet. The combination of the decrease in interfacial tension and the reduction in driving force related to camphor outflow generates intermittent motion with dynamic deformation into a crescent shape.
description: 11 pages, 13 figures
Arenocoris waltlii
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Arenocoris
Arenocoris waltlii

description: Arenocoris waltlii (Herrich-Schaeffer, 1834)
Citas bibliográficas:
Zaragoza: Zaragoza (Ardid de Acha, 1903)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912
Toolbox for analyzing finite two-state trajectories
Creators: name: Flomenbom, O.
name: Silbey, R. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: In many experiments, the aim is to deduce an underlying multi-substate on-off kinetic scheme (KS) from the statistical properties of a two-state trajectory. However, the mapping of a KS into a two-state trajectory leads to the loss of information about the KS, and so, in many cases, more than one KS can be associated with the data. We recently showed that the optimal way to solve this problem is to use canonical forms of reduced dimensions (RD). RD forms are on-off networks with connections only between substates of different states, where the connections can have non-exponential waiting time probability density functions (WT-PDFs). In theory, only a single RD form can be associated with the data. To utilize RD forms in the analysis of the data, a RD form should be associated with the data. Here, we give a toolbox for building a RD form from a finite two-state trajectory. The methods in the toolbox are based on known statistical methods in data analysis, combined with statistical methods and numerical algorithms designed specifically for the current problem. Our toolbox is self-contained - it builds a mechanism based only on the information it extracts from the data, and its implementation on the data is fast (analyzing a 10^6 cycle trajectory from a thirty-parameter mechanism takes a couple of hours on a PC with a 2.66 GHz processor). The toolbox is automated and is freely available for academic research upon electronic request.
Tuning flexoelectricty and electronic properties of zig-zag graphene nanoribbons by functionalization
Creators: name: Pandey, Tribhuwan
name: Covaci, Lucian
name: Peeters, Francois M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The flexoelectric and electronic properties of zig-zag graphene nanoribbons are explored under mechanical bending using state of the art first principles calculations. A linear dependence of the bending induced out of plane polarization on the applied strain gradient is found. The inferior flexoelectric properties of graphene nanoribbons can be improved by more than two orders of magnitude by hydrogen and fluorine functionalization (CH and CF nanoribbons). A large out of plane flexoelectric effect is predicted for CF nanoribbons. The origin of this enhancement lies in the electro-negativity difference between carbon and fluorine atoms, which breaks the out of plane charge symmetry even for a small strain gradient. The flexoelectric effect can be further improved by co-functionalization with hydrogen and fluorine (CHF Janus-type nanoribbon), where a spontaneous out of plane dipole moment is formed even for flat nanoribbons. We also find that bending can control the charge localization of valence band maxima and therefore enables the tuning of the hole effective masses and band gaps. These results present an important advance towards the understanding of flexoelectric and electronic properties of hydrogen and fluorine functionalized graphene nanoribbons, which can have important implications for flexible electronic applications.
description: 9 pages, 8 figures. To appear in Carbon
Solar photo-Fenton disinfection of 11 antibiotic-resistant bacteria (ARB) and elimination of representative AR genes. Evidence that antibiotic resistance does not imply resistance to oxidative treatment.
Creators: name: Giannakis, Stefanos
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 401199
subject: Environmental engineering not elsewhere classified

description: Pre-proof versionThe emergence of antibiotic resistance represents a major threat to human health. In this work we investigated the elimination of antibiotic resistant bacteria (ARB) by solar light and solar photo-Fenton processes. As such, we have designed an experimental plan in which several bacterial strains (Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae) possessing different drug-susceptible and -resistant patterns and structures (Gram-positive and Gram-negative) were subjected to solar light and the photo-Fenton oxidative treatment in water. We showed that both solar light and solar photo-Fenton processes were effective in the elimination of ARB in water and that the time necessary for solar light disinfection and solar photo-Fenton disinfection were similar for antibiotic-susceptible and antibiotic-resistant strains (mostly 180–240 and 90–120 min, respectively). Moreover, the bacterial structure did not significantly affect the effectiveness of the treatment. Similar regrowth pattern was observed (compared to the susceptible strain) and no development of bacteria with higher drug-resistance values was found in waters after any treatment. Finally, both processes were effective to reduce AR genes (ARGs), although solar photo-Fenton was more rapid than solar light. In conclusion, the solar photo-Fenton process ensured effective disinfection of ARB and elimination of ARGs in water (or wastewater) and is a potential mean to ensure limitation of ARB and ARG spread in nature.
Bothrostethus annulipes
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Bothrostethus
Bothrostethus annulipes

description: Bothrostethus annulipes (Herrich-Schaeffer, 1835)
Citas bibliográficas:
Huesca: San Juan de la Peña (Vázquez, 1985)
Teruel: Teruel, Torres de Albarracín (Vázquez, 1985)
Zaragoza: Zaragoza (Ardid de Acha, 1903)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912
Evaluating Large Language Models in Analysing Classroom Dialogue
Creators: name: Long, Yun
name: Luo, Haifeng
name: Zhang, Yu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: This study explores the application of Large Language Models (LLMs), specifically GPT-4, in the analysis of classroom dialogue, a crucial research task for both teaching diagnosis and quality improvement. Recognizing the knowledge-intensive and labor-intensive nature of traditional qualitative methods in educational research, this study investigates the potential of LLM to streamline and enhance the analysis process. The study involves datasets from a middle school, encompassing classroom dialogues across mathematics and Chinese classes. These dialogues were manually coded by educational experts and then analyzed using a customised GPT-4 model. This study focuses on comparing manual annotations with the outputs of GPT-4 to evaluate its efficacy in analyzing educational dialogues. Time efficiency, inter-coder agreement, and inter-coder reliability between human coders and GPT-4 are evaluated. Results indicate substantial time savings with GPT-4, and a high degree of consistency in coding between the model and human coders, with some discrepancies in specific codes. These findings highlight the strong potential of LLM in teaching evaluation and facilitation.
Multi-matrix loop equations: algebraic & differential structures and an approximation based on deformation quantization
Creators: name: Krishnaswami, Govind S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Large-N multi-matrix loop equations are formulated as quadratic difference equations in concatenation of gluon correlations. Though non-linear, they involve highest rank correlations linearly. They are underdetermined in many cases. Additional linear equations for gluon correlations, associated to symmetries of action and measure are found. Loop equations aren't differential equations as they involve left annihilation, which doesn't satisfy the Leibnitz rule with concatenation. But left annihilation is a derivation of the commutative shuffle product. Moreover shuffle and concatenation combine to define a bialgebra. Motivated by deformation quantization, we expand concatenation around shuffle in powers of q, whose physical value is 1. At zeroth order the loop equations become quadratic PDEs in the shuffle algebra. If the variation of the action is linear in iterated commutators of left annihilations, these quadratic PDEs linearize by passage to shuffle reciprocal of correlations. Remarkably, this is true for regularized versions of the Yang-Mills, Chern-Simons and Gaussian actions. But the linear equations are underdetermined just as the loop equations were. For any particular solution, the shuffle reciprocal is explicitly inverted to get the zeroth order gluon correlations. To go beyond zeroth order, we find a Poisson bracket on the shuffle algebra and associative q-products interpolating between shuffle and concatenation. This method, and a complementary one of deforming annihilation rather than product are shown to give over and underestimates for correlations of a gaussian matrix model.
description: 40 pages
Ceraleptus gracilicornis
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Ceraleptus
Ceraleptus gracilicornis

description: Ceraleptus gracilicornis (Herrich-Schaeffer, 1835)
Citas bibliográficas:
Zaragoza: Zaragoza (Ardid de Acha, 1903)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912
Ceraleptus lividus Stein 1858
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Ceraleptus
Ceraleptus lividus

description: Ceraleptus lividus Stein, 1858
Citas bibliográficas:
Zaragoza: sin precisión (Moulet, 1995)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912
Process monitoring based on orthogonal locality preserving projection with maximum likelihood estimation
Creators: name: Zhang, Jingxin
name: Chen, Maoyin
name: Chen, Hao
name: Hong, Xia
name: Zhou, Donghua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: By integrating two powerful methods of density reduction and intrinsic dimensionality estimation, a new data-driven method, referred to as OLPP-MLE (orthogonal locality preserving projection-maximum likelihood estimation), is introduced for process monitoring. OLPP is utilized for dimensionality reduction, which provides better locality preserving power than locality preserving projection. Then, the MLE is adopted to estimate intrinsic dimensionality of OLPP. Within the proposed OLPP-MLE, two new static measures for fault detection $T_{\scriptscriptstyle {OLPP}}^2$ and ${\rm SPE}_{\scriptscriptstyle {OLPP}}$ are defined. In order to reduce algorithm complexity and ignore data distribution, kernel density estimation is employed to compute thresholds for fault diagnosis. The effectiveness of the proposed method is demonstrated by three case studies.
Exact neural mass model for synaptic-based working memory
Creators: name: Taher, Halgurd
name: Torcini, Alessandro
name: Olmi, Simona
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Dynamical Systems (math.DS)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A synaptic theory of Working Memory (WM) has been developed in the last decade as a possible alternative to the persistent spiking paradigm. In this context, we have developed a neural mass model able to reproduce exactly the dynamics of heterogeneous spiking neural networks encompassing realistic cellular mechanisms for short-term synaptic plasticity. This population model reproduces the macroscopic dynamics of the network in terms of the firing rate and the mean membrane potential. The latter quantity allows us to get insight on Local Field Potential and electroencephalographic signals measured during WM tasks to characterize the brain activity. More specifically synaptic facilitation and depression integrate each other to efficiently mimic WM operations via either synaptic reactivation or persistent activity. Memory access and loading are associated to stimulus-locked transient oscillations followed by a steady-state activity in the $β-γ$ band, thus resembling what observed in the cortex during vibrotactile stimuli in humans and object recognition in monkeys. Memory juggling and competition emerge already by loading only two items. However more items can be stored in WM by considering neural architectures composed of multiple excitatory populations and a common inhibitory pool. Memory capacity depends strongly on the presentation rate of the items and it maximizes for an optimal frequency range. In particular we provide an analytic expression for the maximal memory capacity. Furthermore, the mean membrane potential turns out to be a suitable proxy to measure the memory load, analogously to event driven potentials in experiments on humans. Finally we show that the $γ$ power increases with the number of loaded items, as reported in many experiments, while $θ$ and $β$ power reveal non monotonic behaviours.
description: 47 pages, 14 figures
Ceraleptus obtusus
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Ceraleptus
Ceraleptus obtusus

description: Ceraleptus obtusus (Brullé, 1838)
Material estudiado:
Zaragoza: Valdefierro, 22-05-1988, 1♂ (A. Melic leg., col. JPV)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912
Effect of step stiffness and diffusion anisotropy on the meandering of a growing vicinal surface
Creators: name: Frisch, Thomas
name: Verga, Alberto
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the step meandering instability on a surface characterized by the alternation of terraces with different properties, as in the case of Si(001). The interplay between diffusion anisotropy and step stiffness induces a finite wavelength instability corresponding to a meandering mode. The instability sets in beyond a threshold value which depends on the relative magnitudes of the destabilizing flux and the stabilizing stiffness difference. The meander dynamics is governed by the conserved Kuramoto-Sivashinsky equation, which display spatiotemporal coarsening.
description: 4 pages, 3 figures, submitted to Phys. Rev. Lett. (February 2006)
Securing the Digital World: Protecting smart infrastructures and digital industries with Artificial Intelligence (AI)-enabled malware and intrusion detection
Creators: name: Schmitt, Marc
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The last decades have been characterized by unprecedented technological advances, many of them powered by modern technologies such as Artificial Intelligence (AI) and Machine Learning (ML). The world has become more digitally connected than ever, but we face major challenges. One of the most significant is cybercrime, which has emerged as a global threat to governments, businesses, and civil societies. The pervasiveness of digital technologies combined with a constantly shifting technological foundation has created a complex and powerful playground for cybercriminals, which triggered a surge in demand for intelligent threat detection systems based on machine and deep learning. This paper investigates AI-based cyber threat detection to protect our modern digital ecosystems. The primary focus is on evaluating ML-based classifiers and ensembles for anomaly-based malware detection and network intrusion detection and how to integrate those models in the context of network security, mobile security, and IoT security. The discussion highlights the challenges when deploying and integrating AI-enabled cybersecurity solutions into existing enterprise systems and IT infrastructures, including options to overcome those challenges. Finally, the paper provides future research directions to further increase the security and resilience of our modern digital industries, infrastructures, and ecosystems.
Complex formalism of the linear beam dynamics
Creators: name: Lucas, Julio
name: Etxebarria, Victor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: It has long been known that the ellipse normally used to model the phase space extension of a beam in linear dynamics may be represented by a complex number which can be interpreted similarly to a complex impedance in electrical circuits, so that classical electrical methods might be used for the design of such beam transport lines. However, this method has never been fully developed, and only the transport transformation of single particular elements, like drift spaces or quadrupoles, has been presented in the past. In this paper, we complete the complex formalism of linear beam dynamics by obtaining a general differential equation and solving it, to show that the general transformation of a linear beam line is a complex Moebius transformation. This result opens the possibility of studying the effect of the beam line on complete regions of the complex plane and not only on a single point. Taking advantage of this capability of the formalism, we also obtain an important result in the theory of the transport through a periodic line, proving that the invariant points of the transformation are only a special case of a more general structure of the solution, which are the invariant circles of the one-period transformation. Among other advantages, this provides a new description of the betatron functions beating in case of a mismatched injection in a circular accelerator.
Deformed Fréchet law for Wigner and sample covariance matrices with tail in crossover regime
Creators: name: Han, Yi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Given $A_n:=\frac{1}{\sqrt{n}}(a_{ij})$ an $n\times n$ symmetric random matrix, with elements above the diagonal given by i.i.d. random variables having mean zero and unit variance. It is known that when $\lim_{x\to\infty}x^4\mathbb{P}(|a_{ij}|>x)=0$, then fluctuation of the largest eigenvalue of $A_n$ follows a Tracy-Widom distribution. When the law of $a_{ij}$ is regularly varying with index $α\in(0,4)$, then the largest eigenvalue has a Fréchet distribution. An intermediate regime is recently uncovered in \cite{diaconu2023more}: when $\lim_{x\to\infty}x^4\mathbb{P}(|a_{ij}|>x)=c\in(0,\infty)$, then the law of the largest eigenvalue follows a deformed Fréchet distribution. In this work we vastly extend the scope where the latter distribution may arise. We show that the same deformed Fréchet distribution arises (1) for sparse Wigner matrices with an average of $n^{O(1)}$ nonzero entries on each row; (2) for periodically banded Wigner matrices with bandwidth $d_n=n^{O(1)}$; and more generally for weighted adjacency matrices of any $k_n$-regular graphs with $k_n=n^{O(1)}$. In all these cases, we further prove that the joint distribution of the finitely many largest eigenvalues of $A_n$ form a deformed Poisson process, and that eigenvectors of the outlying eigenvalues of $A_n$ are localized, implying a mobility edge phenomenon at the spectral edge $2$. The sparser case with average degree $n^{o(1)}$ is also explored. Our technique extends to sample covariance matrices, proving for the first time that its largest eigenvalue still follows a deformed Fréchet distribution, assuming the matrix entries satisfy $\lim_{x\to\infty}x^4\mathbb{P}(|a_{ij}|>x)=c\in(0,\infty)$.
description: 22 pages
Eleven-Dimensional Gauge Theory for the M Algebra as an Abelian Semigroup Expansion of osp(32|1)
Creators: name: Izaurieta, Fernando
name: Rodríguez, Eduardo
name: Salgado, Patricio
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new Lagrangian realizing the symmetry of the M Algebra in eleven-dimensional space-time is presented. By means of the novel technique of Abelian Semigroup Expansion, a link between the M Algebra and the orthosymplectic algebra osp(32|1) is established, and an M Algebra-invariant symmetric tensor of rank six is computed. This symmetric invariant tensor is a key ingredient in the construction of the new Lagrangian. The gauge-invariant Lagrangian is displayed in an explicitly Lorentz-invariant way by means of a subspace separation method based on the extended Cartan homotopy formula.
description: 11 pages, 1 figure. v3: updated notation and terminology; published version
Coriomeris affinis
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Coriomeris
Coriomeris affinis

description: Coriomeris affinis (Herrich-Schäffer, 1839)
Citas bibliográficas:
Teruel: Sierra de Albarracín, Teruel (Vázquez, 1985)
Zaragoza: Sobradiel (Torre Bueno, 1911)
Material estudiado:
Zaragoza: Botorrita, 31-05-1987, 1♂ (A. Melic leg., col. SEA); Valdefierro, 28-08-1995, 1♂ (A. Melic leg., col. JPV)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on pages 10-11, DOI: 10.5281/zenodo.11372912
Light-cone sum rules for radial excitation of decuplet to octet baryons electromagnetic transition form factors
Creators: name: Aliev, T. M.
name: Savci, M.
name: Bilmis, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Magnetic dipole moment form factor, $G_M^{(2)}(Q^2)$, describing the radial excitation of decuplet baryons to octet baryons electromagnetic transitions as well as the ratios, $R_{SM} = -\frac{1}{4 m_2^2} \sqrt{4 m_2^2 Q^2 + (m_2^2 - Q^2 -m_1^2)^2} \frac{G_C^{(2)}(Q^2)}{G_M^{(2)}(Q^2)}$ and $R_{EM} = -\frac{G_E^{(2)}(Q^2)}{G_M^{(2)}(Q^2)}$ are calculated in the framework of light-cone sum rules. We also estimate the degree of the violation of U-spin symmetry. The obtained results for the multipole form factors can be useful in searching the properties of radially excited baryon states.
description: 21 pages, 7 figures
Toxic dispositions in strategic rational choice
Creators: name: Crossley, Kenneth Ray
Publisher: name: University of British Columbia
Year: 2009

description: David Gauthier argues that in order to be rational, agents must accept voluntary constraints on strategic behaviour. These constraints define an agent's strategic disposition. Taking Gregory Kavka's toxin puzzle as a foil, Section One demonstrates how strategic dispositions face two challenges posed by standard accounts of rational choice: (1) since they potentially rationalize particular acts which are not immediately utility-maximizing at the time those acts are undertaken, 'rationally irrational' internal constraints are incoherent; and (2) a rational agent might not be able to adopt the required constraints. Against the first objection, Section Two exploits the contention of standard rational choice theory that the rationality of actions is best evaluated instrumentally. Natural mechanisms of agency are therefore relevant filters on an agent's rationally-feasible options. Moreover, rational agency can be well interpreted with a naturalistic model of intentional action. Intentional agents are capable of planning. A particular act undertaken to further a broader plan will then be a rational act if the plan is a utility-maximizing plan. A structure of rational plans thus informs a coherent account of strategic dispositions. Section Three notes that agents could still be unable to adopt Gauthier's internal constraints if they entertained conflicting intertemporal preferences. However when overall-utility maximization is demonstrably more rational than discrete-utility maximization, internal conflicts can be resolved. The requisite priority of overall-utility maximization is established with a pragmatic conception of normative justification. Accounts of rational choice, given their basis in primitive fact, therefore ought to endorse Gauthier's internal constraints on strategic choice.
Cosmological Gravitational Wave Background from Phase Transitions in Neutron Stars
Creators: name: Sigl, Guenter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It has recently been suggested that collapse of neutron stars induced by a phase transition to quark matter can be a considerable source of gravitational waves with kHz frequencies. We demonstrate that if about one percent of all neutron stars undergo this process, the resulting cosmological gravitational wave background would reach about 10^-10 times the critical density. The background would peak at kHz frequencies and could have an observationally significant tail down to Hz frequencies. It would be comparable or higher than other astrophysical backgrounds, for example, from ordinary core collapse supernovae, from r-mode instabilities in rapidly rotating neutron stars, or from magnetars. The scenario is consistent with cosmological backgrounds in neutrinos and photons.
description: 12 latex pages, 4 ps figures included
Higher-order Connection Laplacians for Directed Simplicial Complexes
Creators: name: Gong, Xue
name: Higham, Desmond J.
name: Zygalakis, Konstantinos
name: Bianconi, Ginestra
Publisher: name: arXiv
Year: 2024
Subjects: subject: Social and Information Networks (cs.SI)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Higher-order networks encode the many-body interactions existing in complex systems, such as the brain, protein complexes, and social interactions. Simplicial complexes are higher-order networks that allow a comprehensive investigation of the interplay between topology and dynamics. However, simplicial complexes have the limitation that they only capture undirected higher-order interactions while in real-world scenarios, often there is a need to introduce the direction of simplices, extending the popular notion of direction of edges. On graphs and networks the Magnetic Laplacian, a special case of Connection Laplacian, is becoming a popular operator to treat edge directionality. Here we tackle the challenge of treating directional simplicial complexes by formulating Higher-order Connection Laplacians taking into account the configurations induced by the simplices' directions. Specifically, we define all the Connection Laplacians of directed simplicial complexes of dimension two and we discuss the induced higher-order diffusion dynamics by considering instructive synthetic examples of simplicial complexes. The proposed higher-order diffusion processes can be adopted in real scenarios when we want to consider higher-order diffusion displaying non-trivial frustration effects due to conflicting directionalities of the incident simplices.
description: 34 pages, 13 figures
On massless 4D Gravitons from 5D Asymptotically AdS Space-times
Creators: name: Kiritsis, Elias
name: Nitti, Francesco
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the conditions for obtaining four-dimensional massless spin-2 states in the spectrum of fluctuations around an asymptotically $AdS_5$ solution of Einstein-Dilaton gravity. We find it is only possible to have normalizable massless spin-2 modes if the space-time terminates at some IR point in the extra dimension, far from the UV AdS boundary, and if suitable boundary conditions are imposed at the ``end of space.'' In some of these cases the 4D spectrum consists only of a massless spin-2 graviton, with no additional massless or light scalar or vector modes. These spin-2 modes have a profile wave-function peaked in the interior of the 5D bulk space-time. Under the holographic duality, they may be sometimes interpreted as arising purely from the IR dynamics of a strongly coupled QFT living on the AdS boundary.
description: 40 pages, 1 figure. Revised version, to appear in Nuclear Physics B. Typos corrected, one reference added
Coriomeris alpinus
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Coriomeris
Coriomeris alpinus

description: Coriomeris alpinus (Horváth, 1895)
Citas bibliográficas:
Huesca: Panticosa, Pirineos, Salvaguardia-Benasque (Vázquez, 1985); sin precisión (Moulet, 1995)
Coriomeris denticulatus (Scopoli, 1763)
= Coreus pilicornis Burmeister, 1835
Citas bibliográficas:
Huesca: Sierra de Guara (Navás, 1904); Benasque, Guara (Torre Bueno, 1911); Valle de Ordesa (Gulde, 1927); Valle de Ansó (Vázquez, 1985); Puerto de Aísa, Puerto de Borau (Gessé et al., 1995)
Teruel: Teruel (Vázquez, 1985)
Zaragoza: Cariñena (Bolívar & Chicote, 1879); Zaragoza (Ardid de Acha, 1903)
Material estudiado:
Huesca: Cerler-Valle de Benasque, 26-05-2004, 1♂ (J.M. Diéguez leg., col. JPV); Valle de Pineta, 1.200 m., 01-08-1994, 1♂ (A. Melic leg., col. SEA)
Teruel: Camarena de la Sierra, 1.300 m., 05-08-1997, 1♀; 10-08-1997, 1♂ (A. Melic leg., col. SEA)
Zaragoza: Santuario de la Virgen del Moncayo, 1.620 m., 06-07-1998, 1♂ (JPV leg., col. SEA)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 11, DOI: 10.5281/zenodo.11372912
Analysis of size distributions of fictional characters: from Pokémon to Godzilla
Creators: name: Yamamoto, Ken
Publisher: name: arXiv
Year: 2024
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this letter, the size (height and weight) of fictional characters in animations, superhero series, movies, and other media is studied. We find that the distributions of character height and weight approximately follow lognormal distributions in common to five selected works. We propose a mechanism governing this lognormal behavior based on the principle of maximum entropy and the Weber-Fechner law. Moreover, we provide a comparison to the size distributions of real animals. Although the size distributions of fictional characters and real animals are both lognormal, the distributions are essentially different, particularly in the scaling between height and weight.
description: 6 pages, 4 figures
Quantum-limited estimation of range and velocity
Creators: name: Huang, Zixin
name: Lupo, Cosmo
name: Kok, Pieter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The energy-time uncertainty relation puts a fundamental limit on the precision of radars and lidars for the estimation of range and velocity. The precision in the estimation of the range (through the time of arrival) and the velocity (through Doppler frequency shifts) of a target are inversely related to each other, and dictated by the bandwidth of the signal. Here we use the theoretical toolbox of multi-parameter quantum metrology to determine the ultimate precision of the simultaneous estimation of range and velocity. We consider the case of a single target as well as a pair of closely separated targets. In the latter case, we focus on the relative position and velocity. We show that the trade-off between the estimation precision of position and velocity is relaxed for entangled probe states, and is completely lifted in the limit of infinite entanglement. In the regime where the two targets are close to each other, the relative position and velocity can be estimated nearly optimally and jointly, even without entanglement, using the measurements determined by the symmetric logarithmic derivatives.
description: 9 pages, 5 figures plus appendix
Anomaly inflow, dualities, and quantum simulation of abelian lattice gauge theories induced by measurements
Creators: name: Okuda, Takuya
name: Mana, Aswin Parayil
name: Sukeno, Hiroki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Previous work [SciPost Phys. 14, 129 (2023)] has demonstrated that quantum simulation of abelian lattice gauge theories (Wegner models including the toric code in a limit) in general dimensions can be achieved by local adaptive measurements on symmetry-protected topological (SPT) states with higher-form generalized global symmetries. The entanglement structure of the resource SPT state reflects the geometric structure of the gauge theory. In this work, we explicitly demonstrate the anomaly inflow mechanism between the deconfining phase of the simulated gauge theory on the boundary and the SPT state in the bulk, by showing that the anomalous gauge variation of the boundary state obtained by bulk measurement matches that of the bulk theory. Moreover, we construct the resource state and the measurement pattern for the measurement-based quantum simulation of a lattice gauge theory with a matter field (Fradkin-Shenker model), where a simple scheme to protect gauge invariance of the simulated state against errors is proposed. We further consider taking an overlap between the wave function of the resource state for lattice gauge theories and that of a parameterized product state, and we derive precise dualities between partition functions with insertion of defects corresponding to gauging higher-form global symmetries, as well as measurement-induced phases where states induced by a partial overlap possess different (symmetry-protected) topological orders. Measurement-assisted operators to dualize quantum Hamiltonians of lattice gauge theories and their non-invertibility are also presented.
description: 32 pages, 8 figures, minor revisions
Differential forms and odd symplectic geometry
Creators: name: Khudaverdian, Hovhannes M.
name: Voronov, Theodore Th.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We recall the main facts about the odd Laplacian acting on half-densities on an odd symplectic manifold and discuss a homological interpretation for it suggested recently by P. {Š}evera. We study the relationship of odd symplectic geometry with classical objects. We show that the Berezinian of a canonical transformation for an odd symplectic form is a polynomial in matrix entries and a complete square. This is a simple but fundamental fact, parallel to Liouville's theorem for an even symplectic structure. We draw attention to the fact that the de Rham complex on $M$ naturally admits an action of the supergroup of all canonical transformations of $ΠT^*M$. The infinitesimal generators of this action turn out to be the classical `Lie derivatives of differential forms along multivector fields'.
description: LaTeX, 14 pages. Minor editing
Coriomeris hirticornis
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Coriomeris
Coriomeris hirticornis

description: Coriomeris hirticornis (Fabricius, 1794)
Citas bibliográficas:
Huesca: Alcolea de Cinca (Navás, 1905)
Teruel: Albarracín (Champion, 1902)
Zaragoza: Reserva de los Galachos del Ebro (Murria, 2001)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 11, DOI: 10.5281/zenodo.11372912
Designing parties out of parliaments : non-partisan chambers in Indonesia, the Philippines and Thailand
Creators: name: Rich, Roland
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: JQ770.R53 2010
subject: Indonesia Politics and government
subject: Philippines Politics and government
subject: Thailand Politics and government

description: Within the space of a few years, Indonesia, Thailand and the Philippines implemented a design for parliamentary representation that proscribed the established political parties from a parliamentary chamber or part thereof. The need to design non-partisan parts of parliament to undertake representation and deliberation responsibilities is an indirect but serious criticism of political parties. The thesis tracks the intentions behind the non-partisan designs and plots the outcomes of the designs. It also investigates the conceptual architecture underpinning the non-partisan designs identifying corporatism as one (discredited) alternative and "championship" (drawing from the Confucian concept of junzi or exemplary persons) as another. While there is a yearning for exemplary people as representatives, the designers have struggled to find a successful means of having these champions elected to office. The thesis concludes that non-partisan chambers are not viable because political parties will either infiltrate or isolate them. The three case studies demonstrate the limits of what can be achieved by institutional design. Heroic designs responding to problems also of heroic dimensions need to be tackled through an array of devices including civic education and economic reform to compement the design of governance structures. In relation to design issues, the lessons learned are the need to entrust the institutional design negotiation process to an independent body that includes representatives of affected interests to allow them to buy into the resulting compromises; the need to focus on significant and salient features that are capable of being successfully shaped by the structures under design; and the need to ratify the process by a form of public acclamation.
Nodeless $s$-Wave Superconducting Phases in Cuprates with Ba$_2$CuO$_3$-Type Structure
Creators: name: Gao, Zhi-Qiang
name: Sun, Kai-Wei
name: Wang, Fa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this work zero-temperature phase diagrams of cuprates with Ba$_2$CuO$_3$-type CuO chain structure is investigated. The projective symmetry group analysis is employed in the strong coupling limit, and renormalization group with bosonization analysis is employed in the weak coupling limit. We find that in both of these two limits, large areas of the phase diagrams are filled with nodeless $s$-wave superconducting phases (with weak $d$-wave components), instead of pure $d$-wave phase mostly found in cuprates. This implies that nodeless $s$-wave phase is the dominant superconducting phase in cuprates with Ba$_2$CuO$_3$-type CuO chain structure in low temperature. Other phases are also found, including $(s+d)$-wave superconducting phases and Luttinger liquid phases.
description: 6+6 pages, 7 figures
Investigation of the Nicole model
Creators: name: Adam, C.
name: Sanchez-Guillen, J.
name: Vazquez, R. A.
name: Wereszczynski, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study soliton solutions of the Nicole model - a non-linear four-dimensional field theory consisting of the CP^1 Lagrangian density to the non-integer power 3/2 - using an ansatz within toroidal coordinates, which is indicated by the conformal symmetry of the static equations of motion. We calculate the soliton energies numerically and find that they grow linearly with the topological charge (Hopf index). Further we prove this behaviour to hold exactly for the ansatz. On the other hand, for the full three-dimensional system without symmetry reduction we prove a sub-linear upper bound, analogously to the case of the Faddeev-Niemi model. It follows that symmetric solitons cannot be true minimizers of the energy for sufficiently large Hopf index, again in analogy to the Faddeev-Niemi model.
description: Latex, 35 pages, 1 figure
Coriomeris scabricornis
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Coriomeris
Coriomeris scabricornis

description: Coriomeris scabricornis (Panzer, 1809)
Citas bibliográficas:
Huesca: Ibón de Ip (Vázquez, 1985)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 11, DOI: 10.5281/zenodo.11372912
Engaging audiences to value and invest in participatory art practice through reciprocal and relational interactions
Creators: name: Guth, Robert Ern-Yuan
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: N6494.I57 G88 2012
subject: Tiravanija, Rirkrit, 1961-
subject: Bourriaud, Nicolas
subject: Interactive art
subject: Relational art
subject: Communication in art
subject: Arts audiences
subject: Art, Modern 21st century

description: This research project examines certain forms of exchange and reciprocity in participatory art from a practitioner's perspective. It refers to aspects of Nicolas Bourriaud's Relational Aesthetics, touches on the food works of Rirkrit Tiravanija and uses practice-led research to examine audience interactions. In each research event the audience was given the opportunity to participate in some form of exchange, mostly involving food. Eight small research events and one larger work (staged in four editions) were produced. These works are examined as a means of gaining further knowledge of the stagecraft involved in my research practice and developing theoretical frameworks that can be used to better explain the inteactions occurring between people during these events. The outcomes from this investigation include a practical body of technical knowledge in making participatory art. The development o fthis expertise in practice-oedresearch can be seen in the increasing complexity of the research events, culminating in the final participatory event for examination. Tools were also developed, which focus on the indirect and direct reciprocal outcomes expected by participants ande artist, based on their engagement. These tools can equally be applied to the deconstruction of existing works to examine the mechanics of interaction or for the planning of future works.