cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A New Hybrid Technique for Modeling Dense Star Clusters
Creators: name: Rodriguez, Carl L.
name: Pattabiraman, Bharath
name: Chatterjee, Sourav
name: Choudhary, Alok
name: Liao, Wei-keng
name: Morscher, Meagan
name: Rasio, Frederic A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The "gravitational million-body problem," to model the dynamical evolution of a self-gravitating, collisional N-body system with ~10^6 particles over many relaxation times, remains a major challenge in computational astrophysics. Unfortunately, current techniques to model such systems suffer from severe limitations. A direct N-body simulation with more than 10^5 particles can require months or even years to complete, while an orbit-sampling Monte Carlo approach cannot adequately model the dynamics in a dense cluster core, particularly in the presence of many black holes. We have developed a new technique combining the precision of a direct N-body integration with the speed of a Monte Carlo approach. Our Rapid And Precisely Integrated Dynamics code, the RAPID code, statistically models interactions between neighboring stars and stellar binaries while integrating directly the orbits of stars or black holes in the cluster core. This allows us to accurately simulate the dynamics of the black holes in a realistic globular cluster environment without the burdensome N^2 scaling of a full N-body integration. We compare RAPID models of idealized globular clusters to identical models from the direct N-body and Monte Carlo methods. Our tests show that RAPID can reproduce the half-mass radii, core radii, black hole ejection rates, and binary properties of the direct N-body models far more accurately than a standard Monte Carlo integration while remaining significantly faster than a full N-body integration. With this technique, it will be possible to create more realistic models of Milky Way globular clusters with sufficient rapidity to explore the full parameter space of dense stellar clusters.
description: 22 pages, 11 figures, accepted by Computational Astrophysics and Cosmology
The ovipositional behaviour of the endemic whistling lizard Calotes liolepis Boulenger, 1885 (Reptilia: Agamidae) in the Knuckles forest region of Sri Lanka
Creators: name: Karunarathna, D.M.S. Suranjan
name: Bandara, I. Nuwan
name: Chanaka, A.W. Amila
Publisher: name: Acta Herpetologica
Year: 2009

description: A mature female Calotes liolepis was observed laying eggs on the ground in Manigala in the Knuckles Forest Region of Sri Lanka. This is the first completely described observation of the ovipositioning as well as the captive egg hatching of Calotes liolepis. This ovipositional behaviour consisted of the digging of the nest cavity, oviposition, scraping of the soil to bury the eggs, filling of the spaces between the eggs, compression of the soil, and camouflage of the nest. The sizes of three eggs were increased during incubation: day 1 mean = 17.5 mm × 9.2 mm (length × width), and after 70-71 days mean = 21.7 mm × 14.4 mm. Three hatchlings were emerged (mean snout-to-vent length = 29.9 mm; tail length = 58.2 mm; head length = 10.2 mm. Immediate conservation measures are needed for this endemic and threatened lizard, and the observations related to its egg-laying could be useful in planning and implementing suitable conservation methods.
description: Acta Herpetologica, Vol 4 No 1 (2009)
title: Ermittelte Regeln und Erkenntnisse des Regelermittlungsausschusses nach § 46 des Mess- und Eichgesetzes
title: Stand: 7. Dezember 2017
titleType: Subtitle
Creators: name: Regelermittlungsausschuss bei der Physikalisch-Technischen Bundesanstalt (PTB), Braunschweig
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2018
Subjects: Regelermittlungsausschuss
REA
Mess- und Eichgesetz
technische Spezifikationen
wesentliche Anforderungen
Verfahren der Konformitätsbewertung
Verwendung von Messgeräten

description: Stand: 7. Dezember 2017
A comparative study of contractility of the heart ventricle in some ectothermic vertebrates
Creators: name: Kharin, Sergey
name: Shmakov, Dmitry
Publisher: name: Acta Herpetologica
Year: 2009

description: The purpose of this study was to analyze contractility of the heart ventricle in selected reptilian and amphibian species having the same ventricular excitation pattern. Systolic time intervals and indices of contractility of the heart ventricle were measured in anaesthetized frogs, snakes, and tortoises by use of polycardiography. The electromechanical delay was significantly shorter in tortoises compared with the other two species. The isovolumetric contraction time in frogs was approximately twofold longer than in reptiles. The pre-ejection period was the longest in frogs and the shortest in tortoises, whereas snakes were intermediate. The ejection time was slightly longer in tortoises compared with the other two species. The greatest isovolumetric contraction index and the smallest myocardial tension index corresponded to the frog and tortoise heart ventricle, respectively. The intrasystolic index in tortoises was significantly greater than in frogs, whereas quite similar to that in snakes. The frog ventricle had lower contractility compared with the reptilian one. Although ventricular contractility tended to be lower in snakes compared with tortoises, this difference was not statistically significant. Possible causes for these differences are discussed. We suppose a large variety in ventricular contractility among amphibian and reptilian species having the same ventricular activation pattern. This variety may be conditioned by heart anatomy, intracardiac shunting, lifestyles, and habitats. It can only be hypothesized that on the average, ventricular contractility is higher in reptiles compared with amphibians and in chelonians compared with snakes.
description: Acta Herpetologica, Vol 4 No 1 (2009)
Implicit Strategies within Environmental Context of Same-Sex Parents
Creators: name: Dunn, Tyler Patrick
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Introduction: • LGBT populations are understudied • 2014: >170,000 children live in the US with a same-sex couple • Sexual orientation found to influence occupational selection and experience • Same-sex families vulnerable to judgment, pressure to conform, and need to guard kids from homophobia • Unique stressors might affect public engagement of occupations. Research Question: • How do same-sex parented families experience public occupations?
Fractal Dimensions Derived from Spatial Allometric Scaling of Urban Form
Creators: name: Chen, Yanguang
name: Wang, Yihan
name: Li, Xijing
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The improved city clustering algorithm can be used to identify urban boundaries on a digital map, and the results are a set of isolines. The relationships between the urban measurements within the variable boundaries follow allometric scaling law, which indicates spatial allometry of cities. This paper is devoted to exploring the fractal dimension proceeding from urban spatial allometry. By theoretical reasoning and empirical analysis of urban traffic network, we can derive a set of fractal dimension from the spatial allometry and reveal the basic property of the new fractal parameters. The findings are as follows. First, the fractal dimension values of traffic lines are higher than those of traffic nodes. Second, the fractal dimension values based on variable boundaries are lower than those based on the concentric circles. Conclusions can be reached that the fractal dimensions coming from spatial allometry are a type of correlation dimension rather than capacity dimension, and the relative growth rate of traffic points is greater than that of traffic nodes. This study provides new way of understanding allometry, fractals, and scaling in urban systems.
description: 25 pages, 7 figures, 4 tables
An Impossibility Result for Reconstruction in a Degree-Corrected Planted-Partition Model
Creators: name: Gulikers, Lennart
name: Lelarge, Marc
name: Massoulié, Laurent
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We consider the Degree-Corrected Stochastic Block Model (DC-SBM): a random graph on $n$ nodes, having i.i.d. weights $(ϕ_u)_{u=1}^n$ (possibly heavy-tailed), partitioned into $q \geq 2$ asymptotically equal-sized clusters. The model parameters are two constants $a,b > 0$ and the finite second moment of the weights $Φ^{(2)}$. Vertices $u$ and $v$ are connected by an edge with probability $\frac{ϕ_u ϕ_v}{n}a$ when they are in the same class and with probability $\frac{ϕ_u ϕ_v}{n}b$ otherwise. We prove that it is information-theoretically impossible to estimate the clusters in a way positively correlated with the true community structure when $(a-b)^2 Φ^{(2)} \leq q(a+b)$. As by-products of our proof we obtain $(1)$ a precise coupling result for local neighbourhoods in DC-SBM's, that we use in a follow up paper [Gulikers et al., 2017] to establish a law of large numbers for local-functionals and $(2)$ that long-range interactions are weak in (power-law) DC-SBM's.
description: Appeared in Annals of Applied Probability
Fast and optimal generation of entanglement in bosonic Josephson junctions
Creators: name: Sorelli, Giacomo
name: Gessner, Manuel
name: Smerzi, Augusto
name: Pezzè, Luca
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We use an exact quantum phase model to study the dynamical generation of particle-entanglement in a bosonic Josephson junction composed by two coupled and interacting Bose-Einstein condensates. Using analytical arguments, we show that linear coupling can accelerate the creation of entanglement with respect to the well known one-axis twisting model where coupling is absent. Furthermore, with a numerical analysis of optimal control schemes, we identify the optimal parameters for the fast generation of metrologically useful entanglement on short time scales: the optimal evolution is generated for a specific ratio between the coupling and the interaction strength.
description: new version, 12 pages, 10 figures
Newborn dicephalic Podarcis sicula
Creators: name: Spadola, Filippo
name: Insacco, Gianni
Publisher: name: Acta Herpetologica
Year: 2009

description: The author describes a very rare case of dicephalism in a Podarcis sicula found in Ragusa (Italy). This is the first account in the world of a malformation of this sort in Podarcis spp.
description: Acta Herpetologica, Vol 4 No 1 (2009)
Proof of some congruence conjectures of Guo and Liu
Creators: name: Mao, Guo-Shuai
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $n$ and $r$ be positive integers. Define the numbers $S_n^{(r)}$ by $S_n^{(r)}=\sum_{k=0}^n\binom{n}{k}^2\binom{2k}{k}(2k+1)^r.$ In this paper we prove some conjectures of Guo and Liu which extend some conjectures of Z.-W. Sun \cite{Su1}, such as: There exist integers $a_{2r-1}$ and $b_r$, independent of $n$, such that $$a_{2r-1}\sum_{k=0}^{n-1}S_k^{(2r-1)}\equiv0\pmod{n^2}\ \mbox{and}\ b_r\sum_{k=0}^{n-1}kS_k^{(r)}\equiv0\pmod{n^2}.$$ By Zeilberger algorithm, we find that for all $0\leq j
description: 11 pages, 0 figures, The Ramanujan Journal(2018)
Global equilibrium and local thermodynamics in stationary spacetimes
Creators: name: Panerai, Rodolfo
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In stationary spacetimes global equilibrium states can be defined, applying the maximum entropy principle, by the introduction of local thermodynamic fields determined solely by geometry. As an example, we study a class of equilibrium states for a scalar field in Einstein's static universe, characterized by inhomogeneous thermodynamic properties and nonvanishing angular momentum.
description: 9 pages; v2: minor changes, published version; v3: reintroduced a paragraph from v1
Effects of light and group size on the activity of wood frog tadpoles (Rana sylvatica) and their response to a shadow stimulus
Creators: name: McClure, Katherine V.
name: Mora, Jordan W.
name: Smith, Geoffrey R.
Publisher: name: Acta Herpetologica
Year: 2009

description: Tadpoles are known to behaviorally respond to cues from aquatic predators. However, there are several additional factors that might affect tadpole behavior. We examined the influence of light conditions and group size on the activity of wood frog (Rana sylvatica) tadpoles and their response to a simulated non-aquatic predator (i.e., a shadow stimulus). Activity levels of undisturbed wood frog tadpoles were higher in larger groups (15 tadpoles) than in the smaller groups (5 tadpoles). Activity following exposure to a simulated aerial predator (i.e., a shadow stimulus) was also higher in the larger groups of tadpoles than in the smaller groups. Light conditions did not influence activity level in undisturbed tadpoles, but did affect the response to the shadow stimulus, with the greatest responses being observed under bright light conditions. Our results suggest that the factors influencing tadpole activity can include a diverse range of factors and cues, including lighting conditions and group size.
description: Acta Herpetologica, Vol 4 No 1 (2009)
On the total curvature of minimizing geodesics on convex surfaces
Creators: name: Lebedeva, Nina
name: Petrunin, Anton
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We give a universal upper bound for the total curvature of minimizing geodesic on a convex surface in the Euclidean space.
description: English/Russian 18/19 pages 4 figures
Identity, Trust, and the Experiences of Refugees During the First COVID-19 Lockdown in Malaysia
Creators: name: Nungsari, Melati
name: Chuah, Hui
name: Flanders, Sam
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: COVID-19, refugees, asylum-seekers, trust, public health, compliance, identity, qualitative methods, emerging markets, developing countries

description: This project examines the experiences of refugees in a developing country during its first COVID-19 lockdown by utilizing a two-stage qualitative data analysis of 39 interviews with refugees and asylum-seekers. We find that their experiences during the lockdown are shaped by identity, trauma and help from external parties – such as community leaders and local non-governmental organizations (NGOs). Experiences during the pandemic in turn moderate the relationship between policy changes and trust in domestic authority figures, which consequently affects attitudes towards and compliance with public health measures put in place to contain the pandemic. We then explore the role of identity in refugees’ pandemic experiences by comparing the differences between two refugee groups (Syrians and Rohingyas), validating them by utilizing comparative thematic analysis. Finally, the paper presents policy implications for crisis response in developing countries by suggesting improvements that can be made on the ground regarding the delivery of aid and assistance to vulnerable groups.
Feeding pattern and use of reproductive habitat of the Striped toad Rhinella crucifer (Anura: Bufonidae) from Southeastern Brazil
Creators: name: Ferreira, Rodrigo B.
name: Teixeira, Rogério L.
Publisher: name: Acta Herpetologica
Year: 2009

description: Diet composition, foraging mode, and using of reproductive habitat of Rhinella crucifer was studied in an artificial pond in Espírito Santo, Brazil. The favored substrate was leaf litter, followed by Cyperaceae/Poaceae. Calling sites, preferred for 23.3 % (n = 7) of the observed toads, were within the water, with only the head not submerged. We analyzed a total of 61 specimens, mainly males (98.5% male and 1.5% female). Seven categories of prey were found in the stomach contents: Coleoptera, Hymenoptera (Formicidae), Isoptera, Lepidoptera, Orthoptera, Gastropoda (Mollusca), Opilionida (Arachnida). Our studies indicate that the diet of Rhinella crucifer consists mainly of terrestrial colonial arthropods. Formicidae was the predominant food item in frequency of occurrence, number of prey and weight. Isoptera and Coleoptera were also relevant in terms of weight. Neither large ontogenetic dietary nor seasonal shifts were observed in the population studied. Our results suggest that no intraspecific food resource partitioning occurs in adult or juveniles. Rhinella crucifer adults avoid competition inhabiting different home range habitats and seem to be ant-specialist with a wide foraging mode.
description: Acta Herpetologica, Vol 4 No 2 (2009)
Additional file 4 of An exploration of prenatal breastfeeding self-efficacy: a scoping review
Creators: name: McGovern, Liz M.
name: O’Toole, Laura
name: Laws, Rachel A.
name: Skinner, Timothy C.
name: McAuliffe, Fionnuala M.
name: O’Reilly, Sharleen L.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Supplementary Material 4
Structural habitat use by the Many-scaled Anole, Anolis polylepis (Squamata: Polychrotidae)
Creators: name: Barquero, Marco D.
name: Arguedas, Viviana P.
Publisher: name: Acta Herpetologica
Year: 2009

description: Lizards of the genus Anolis are commonly used as models for several ecological studies. Nevertheless, some aspects of their ecology have not been studied and information reported previously for several species must be reanalyzed. The aim of this study is to examine the structural habitat use in a population of the Many-scaled Anole, Anolis polylepis, with the purpose of comparing our results with the information reported previously for this species. Most of the captured individuals were on stems and we did not find any differences in the structural habitat use among sex/age classes. We found differences for perch height among individuals shedding their skin regarding those that are not. We also detected differences among our results and the information reported previously for this species. Such differences could be due to intrinsic factors of each population, such as the proportion of individuals that were molting their skin in a specific time. More studies with greater sample sizes and to a longer term are required to clearly understand the influence of these factors in the habitat use of A. polylepis and other anoline lizards.
description: Acta Herpetologica, Vol 4 No 2 (2009)
Speeding Up Simulations By Slowing Down Particles: Speed-Limited Particle-In-Cell Simulation
Creators: name: Werner, Gregory R.
name: Jenkins, Thomas G.
name: Chap, Andrew M.
name: Cary, John R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Based on the particle-in-cell (PIC) plasma simulation method, the speed-limited PIC (SLPIC) method delivers faster kinetic plasma simulation in cases where the particle distributions evolve slowly compared with the maximum stable PIC timestep. SLPIC thus offers more feasible, fully kinetic simulation in regimes that historically have required fluid approaches, such as magnetohydrodynamic (MHD), two-fluid, or Boltzmann electron treatments. In particular, SLPIC allows an explicit time advance with steps much larger than the inverse plasma frequency, avoiding the instability explicit PIC faces with large timesteps. SLPIC avoids this instability by slowing down fast particles (e.g., electrons) in a way that is rigorously underpinned by an approximate Vlasov equation; unlike MHD, two-fluid, and Boltzmann electron approaches, SLPIC does not fundamentally neglect any first-principles plasma physics, although the choices of grid cell size, timestep, and number of macroparticles per cell naturally limit the physical phenomena that can be accurately represented. SLPIC can be implemented with minor modifications of a standard PIC code and does not require an implicit time advance. It enables large timesteps in first-principles kinetic plasma simulation of appropriately slow phenomena, and it can handle many of the same complications as PIC, such as boundary conditions and collisions. In an argon plasma sheath test problem, a SLPIC simulation achieved a speed-up of a factor of 160 over the corresponding PIC simulation, without loss of accuracy.
description: 23 pages, 5 figures
Habitat features and distribution of Salamandra salamandra in underground springs
Creators: name: Manenti, Raoul
name: Ficetola, Gentile F.
name: Bianchi, Barbara
name: De Bernardi, Fiorenza
Publisher: name: Acta Herpetologica
Year: 2009

description: Subterranean habitats are among the less known terrestrial habitats, but can reveal an unexpected biodiversity, and can play an underestimated role for amphibians. The fire salamander Salamandra salamandra is sometimes found in underground environments, but the factors affecting its distribution in subterranean spaces remain substantially unexplored. We repeatedly surveyed some hypogeous springs, such as draining galleries and “bottini” in NW Italy, in order to evaluate the relationship between environmental features and distribution of S. salamandra in these underground springs. We performed visual encounter surveys to assess the occurrence of larvae, juveniles or adults in springs. We also recorded four habitat variables: easy of access, isolation, macrobenthos richness and forest cover of the surrounding landscape. We used generalized linear models to evaluate the relationships between habitat features and occurrence of larvae. We observed larvae of S. salamandra in 13 out of 22 springs; their presence was associated to springs with high easy of access and with relatively rich macrobenthos communities. In underground springs, larval development apparently required longer time than in nearby epigeous streams. Nevertheless, S. salamandra can attain metamorphosis in this environment. The occurrence of S. salamandra in underground environments was not accidental, but repeated in the time and interesting from an ecological point of view, confirming the high plasticity of the species.
description: Acta Herpetologica, Vol 4 No 2 (2009)
Local Shtukas and Divisible Local Anderson Modules
Creators: name: Hartl, Urs
name: Singh, Rajneesh Kumar
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We develop the analog of crystalline Dieudonné theory for p-divisible groups in the arithmetic of function fields. In our theory p-divisible groups are replaced by divisible local Anderson modules, and Dieudonné modules are replaced by local shtukas. We show that the categories of divisible local Anderson modules and of effective local shtukas are anti-equivalent over arbitrary base schemes. We also clarify their relation with formal Lie groups and with global objects like Drinfeld modules, Anderson's abelian t-modules and t-motives, and Drinfeld shtukas. Moreover, we discuss the existence of a Verschiebung map and apply it to deformations of local shtukas and divisible local Anderson modules. As a tool we use Faltings's and Abrashkin's theory of strict modules, which we review to some extent.
description: 45 pages, v4: Final version. Appears in Canadian Journal of Mathematics. The present arXiv version contains a few more details and proofs; see page 1 bottom
Distribution of tadpoles of large wrinkled frog Nyctibatrachus major in central Western Ghats: influence of habitat variables
Creators: name: Girish, Kalamanji Govindaiah
name: Bhatta Krishnam, Sannanegunda Venkatarama
Publisher: name: Acta Herpetologica
Year: 2009

description: The relationship between habitat variables and the distribution and abundance of adults and tadpoles of Nyctibatrachus major (large wrinkled frog) in 35 forest streams in central Western Ghats is detailed in this paper. Tadpoles were not equally distributed among these streams. Adult frogs and tadpoles were absent from 19 streams. In the remaining 16 streams, adults were found throughout the study period but the density of tadpoles varied considerably. Analysis of habitat variables at streams showed significant relationship with canopy cover over the streams, presence of leaf litter and high relative humidity on the occurrence of tadpoles. Reduction in canopy cover increases light level and air and water temperature of the streams discouraging the occurrence of adult frogs and tadpoles. However, canopy cover in the study area is frequently altered by agriculture related human activities including removal of trees for fuel and timber, pruning of green leaves and twigs for making manure and conversion of forest into commercial plantations. The results suggest that disturbances to forest canopy near streams could have deleterious effects on the occurrence and distribution of tadpoles.
description: Acta Herpetologica, Vol 4 No 2 (2009)
Additional file 7 of Characterizing PFAS hazards and risks: a human population-based in vitro cardiotoxicity assessment strategy
Creators: name: Ford, Lucie C.
name: Lin, Hsing-Chieh
name: Zhou, Yi-Hui
name: Wright, Fred A.
name: Gombar, Vijay K.
name: Sedykh, Alexander
name: Shah, Ruchir R.
name: Chiu, Weihsueh A.
name: Rusyn, Ivan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Supplementary Material 7
Decline of a common reptile: case study of the viperine snake Natrix maura in a Mediterranean wetland
Creators: name: Santos, Xavier
name: Llorente, Gustavo A.
Publisher: name: Acta Herpetologica
Year: 2009

description: The Ebro Delta is a wetland area in which natural ecosystems have been partially replaced by rice fields. This mixed and productive landscape has allowed the establishment of a rich community of organisms. The viperine snake Natrix maura has traditionally been a common and abundant predator because the habitat is favorable and prey availability is high. In June 1995, we conducted a demographic study to evaluate relative densities of snakes in the rice fields. Thirteen years later, we repeated the same study in the same area and season. The field work consisted of 29 censuses of one hectare each, and snakes and their potential prey (green frogs and fish) were counted. In 1995, we found 27 snakes (0.93 animals/ha), these occupying 48% of the sites. Frogs and fish were observed in 23 of the 29 censuses (79%). In 2008, no snakes were found and frogs and fish appeared in only 11 of the samples (38%). In 2008, we also prospected 20 sites in rice fields located next to the natural lagoons. At these sites, we detected a greater number of snakes (25% of the stations). Several factors can explain the clear decline of the N. maura population in the Ebro Delta rice fields: 1) the transformation and degradation of the habitat; 2) the increase in population densities of natural predators such as herons; 3) the decrease in prey availability; 4) the massive use of pollutants in the rice fields; and 5) snake death on local roads and directly by human persecution. We propose that a combined effect of these factors has caused the alarming decline of this predator. The observation of water snakes in rice fields near natural lagoons indicates that protected natural areas act as natural refuges for fauna with reduced mobility, such as viperine snakes. The recovery of the N. maura population in the rice fields of the Ebro Delta depends on an integral change in agricultural management, including the reduced use of pollutants, the recovery of snake prey, and the maintenance of favorable habitats to prevent predation.
description: Acta Herpetologica, Vol 4 No 2 (2009)
The Maxwell Compactness Property in Bounded Weak Lipschitz Domains with Mixed Boundary Conditions
Creators: name: Bauer, Sebastian
name: Pauly, Dirk
name: Schomburg, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For a bounded weak Lipschitz domain we show the so called `Maxwell compactness property', that is, the space of square integrable vector fields having square integrable weak rotation and divergence and satisfying mixed tangential and normal boundary conditions is compactly embedded into the space of square integrable vector fields. We will also prove some canonical applications, such as Maxwell estimates, Helmholtz decompositions and a static solution theory. Furthermore, a Fredholm alternative for the underlying time-harmonic Maxwell problem and all corresponding and related results for exterior domains formulated in weighted Sobolev spaces are straight forward.
description: key words: Maxwell compactness property, weak Lipschitz domain, Maxwell estimate, Helmholtz decomposition, electro-magneto static, mixed boundary conditions, vector potentials
ExtraPush for convex smooth decentralized optimization over directed networks
Creators: name: Zeng, Jinshan
name: Yin, Wotao
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optimization and Control (math.OC)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Robotics (cs.RO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this note, we extend the algorithms Extra and subgradient-push to a new algorithm ExtraPush for consensus optimization with convex differentiable objective functions over a directed network. When the stationary distribution of the network can be computed in advance}, we propose a simplified algorithm called Normalized ExtraPush. Just like Extra, both ExtraPush and Normalized ExtraPush can iterate with a fixed step size. But unlike Extra, they can take a column-stochastic mixing matrix, which is not necessarily doubly stochastic. Therefore, they remove the undirected-network restriction of Extra. Subgradient-push, while also works for directed networks, is slower on the same type of problem because it must use a sequence of diminishing step sizes. We present preliminary analysis for ExtraPush under a bounded sequence assumption. For Normalized ExtraPush, we show that it naturally produces a bounded, linearly convergent sequence provided that the objective function is strongly convex. In our numerical experiments, ExtraPush and Normalized ExtraPush performed similarly well. They are significantly faster than subgradient-push, even when we hand-optimize the step sizes for the latter.
description: 16 pages, 3 figures
ped_2021_abstract.pdf
Creators: name: Gregorj, Adrien
name: Yucel, Zeynep
name: Zanlungo, Francesco
name: Feliciani, Claudio
name: Kanda, Takayuki
Publisher: name: figshare
Year: 2023
Subjects: Applied computing not elsewhere classified

description: Abstract for a presentation to the 10th International Conference on Pedestrian and Evacuation Dyanmics (PED 2021) titled On the influence of group social relation on the dynamics of pedestrians outside the group.
The Miyaoka-Yau inequality and uniformisation of canonical models
Creators: name: Greb, Daniel
name: Kebekus, Stefan
name: Peternell, Thomas
name: Taji, Behrouz
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32Q30, 32Q26, 14E20, 14E30, 53C07

description: We establish the Miyaoka-Yau inequality in terms of orbifold Chern classes for the tangent sheaf of any complex projective variety of general type with klt singularities and nef canonical divisor. In case equality is attained for a variety with at worst terminal singularities, we prove that the associated canonical model is the quotient of the unit ball by a discrete group action.
description: v3: final version, added section on "Further directions"; accepted for publication by Annales scientifiques de l'Ecole normale sup\'erieure
Sightings and successful reproduction of allochthonous reptiles in Calabria
Creators: name: Sperone, Emilio
name: Crescente, Antonio
name: Brunelli, Elvira
name: Paolillo, Giuseppe
name: Tripepi, Sandro
Publisher: name: Acta Herpetologica
Year: 2010

description: This paper reports information about the presence of three allochthonous reptiles species in Calabria: Testudo marginata, Trachemys scripta elegans and Chamaeleo chamaeleon. The first one was found in three sites located in the Catena Costiera Massif and in the Crati Valley (Northern Calabria). The slider turtle was found in seven different sites throughout all the region. It massively colonised the Angitola artificial lake: here, this turtle lives in natural conditions and its reproduction was confirmed by the presence of nests, eggs and hatchlings. C. chamaeleon is present in sandy coastal habitats near Palmi and Gioia Tauro (Southern Calabria). From a conservationistic point of view, serious damages to autochtonous species could be caused by the spreading of T. scripta elegans: this species has already determined the local extinction of Angitola’s Emys orbicularis populations.
description: Acta Herpetologica, Vol 5 No 2 (2010)
Analysis of Pharmacists Ability to Counsel on Smoking Cessation Products
Creators: name: Tate, Courtney
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Smoking cessation

description: Learning Objective: • Describe the need for continuing education (CE) for community pharmacists regarding available smoking cessation therapy and appropriate counseling for those ready to quit. Background: • Approximately 1 in 5 adults smokes ✦In 2010 19.3% of adults smoked which declined from 20.9% in 2005 • Nicotine dependence is the most common form of chemical dependence in the US • It is difficult to quit smoking and typically requires multiple attempts • Almost 70% of current smokers want to quit completely ✦ Only about 40% of smokers will make an attempt. Purpose: • Determine the need for continuing education of pharmacists on available over-­the-­counter(OTC) and prescription nicotine replacement therapy (NRT) products and how to appropriately counsel a patient who is ready to quit smoking.
A Framework for the AI-based visualization and analysis of massive amounts of 4D tomography data for end users of beamlines
Creators: name: Kieß, Steffen
name: Lang, Thomas
name: Sauer, Tomas
name: Stock, Michael
name: Chernov, Andrei
name: Sun, Yipeng
name: Maier, Andreas
name: Farago, Tomas
name: Ershov, Alexey
name: Baumbach, Tilo
name: Zabler, Simon
name: Hölzing, Astrid
name: Dremel, Kilian
name: Durmaz, Ali Riza
name: Thomas, Akhil
name: Manke, Ingo
name: Kardjilov, Nikolay
name: Arlt, Tobias
name: Wong, Tak Ming
name: Willumeit-Römer, Regine
name: Moosmann, Julian
name: Zeller-Plumhoff, Berit
name: Froning, Dieter
name: Simon, Sven
Publisher: name: Forschungzentrum Jülich
Year: 2025

description: The 14th International Conference on Industrial Computed Tomography, Antwerp, Belgium, 4 Feb 2025 - 7 Feb 2025
description: See attached file
Inequities in Healthcare Services caused by the Adoption of Digital Health Technologies: A Scoping Review
Creators: name: Shen, Lining
name: Yao, Rui
name: Zhang, Wenli
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: health inequities

description: Digital health technologies, the integration of digital technology and health information aimed at increasing the efficiency of healthcare delivery, are rapidly adapting to healthcare contexts to provide improved medical services to citizens. However, contrary to expectations, their rapid adoption appears to have led to health inequities, which refer to differences in health conditions or the distribution of healthcare resources among different populations. This scoping review aims to identify and describe the health inequities of healthcare services brought about by the adoption of digital health technologies. The influencing factors of inequities, as well as corresponding countermeasures to ensure the health equity between different groups of citizens, is also studied.
Altitudinal variation in body size in the Rice Frog (Rana limnocharis) in southwestern China
Creators: name: Liu, Yan Hong
name: Zeng, Yu
name: Liao, Wen Bo
name: Zhou, Cai Quan
name: Mi, Zhi Ping
name: Mao, Min
name: Chen, Lin
Publisher: name: Acta Herpetologica
Year: 2012

description: Bergmann’s rule states that, within species of endotherms, individuals tend to be larger in cooler environments, and has been reputed to apply to some ectotherms including amphibians. However, the validity of the rule has been debated, questioning whether Bergmann’s clines are generally present in anurans. In the view, we studied altitudinal variation in body size in the rice frog (Rana limnocharis) among populations from Sichuan province located at three altitudes to find if there exist any differences in a relatively small altitudinal range (290-375 m). The results showed that individuals from higher altitudes tended to be larger in body size than lower altitudes, which was consistent with Bergmann’s cline. Moreover, when the effect of age was removed, variation in body size of the frogs across altitudes still remained. Our findings suggested that age affected the pattern of variation in body size across the altitudinal cline, we also discussed that factors other than age also contributed to size differences among populations.
description: Acta Herpetologica, Vol 7 No 1 (2012)
Chip-firing based methods in the Riemann--Roch theory of directed graphs
Creators: name: Hujter, Bálint
name: Tóthmérész, Lilla
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50, 05C57

description: Baker and Norine proved a Riemann--Roch theorem for divisors on undirected graphs. The notions of graph divisor theory are in duality with the notions of the chip-firing game of Björner, Lovász and Shor. We use this connection to prove Riemann--Roch-type results on directed graphs. We give a simple proof for a Riemann--Roch inequality on Eulerian directed graphs, improving a result of Amini and Manjunath. We also study possibilities and impossibilities of Riemann--Roch-type equalities in strongly connected digraphs and give examples. We intend to make the connections of this theory to graph theoretic notions more explicit via using the chip-firing framework.
description: 22 pages, 4 figures
Generalized stacked contact process with variable host fitness
Creators: name: Foxall, Eric
name: Lanchier, Nicolas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35

description: The stacked contact process is a three-state spin system that describes the co-evolution of a population of hosts together with their symbionts. In a nutshell, the hosts evolve according to a contact process while the symbionts evolve according to a contact process on the dynamic subset of the lattice occupied by the host population, indicating that the symbiont can only live within a host. This paper is concerned with a generalization of this system in which the symbionts may affect the fitness of the hosts by either decreasing (pathogen) or increasing (mutualist) their birth rate. Standard coupling arguments are first used to compare the process with other interacting particle systems and deduce the long-term behavior of the host-symbiont system in several parameter regions. The mean-field approximation of the process is also studied in detail and compared to the spatial model. Our main result focuses on the case where unassociated hosts have a supercritical birth rate whereas hosts associated to a pathogen have a subcritical birth rate. In this case, the mean-field model predicts coexistence of the hosts and their pathogens provided the infection rate is large enough. For the spatial model, however, only the hosts survive on the one-dimensional integer lattice.
description: 23 pages, 4 figures
Additional file 3 of Characterizing PFAS hazards and risks: a human population-based in vitro cardiotoxicity assessment strategy
Creators: name: Ford, Lucie C.
name: Lin, Hsing-Chieh
name: Zhou, Yi-Hui
name: Wright, Fred A.
name: Gombar, Vijay K.
name: Sedykh, Alexander
name: Shah, Ruchir R.
name: Chiu, Weihsueh A.
name: Rusyn, Ivan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Supplementary Material 3
Orientation and directional escape by Blanchard’s Cricket Frog, Acris blanchardi (Amphibia: Anura: Hylidae), in response to a human predator
Creators: name: McCallum, Malcolm
Publisher: name: Acta Herpetologica
Year: 2011

description: I investigated the seemingly haphazard jumping pattern of Blanchard’s Cricket Frog (Acris blanchardi) to determine if it was random or patterned. I approached frogs from the front (cranial), back (caudal), and side (lateral) simulating an attacking predator. On average, frogs jumped away at 135.73° (SE = 2.31°) from the direction of attack. I did not distinguish between right and left directions in this study. There were significant differences in the angle of escape among the three attack directions (F2,87 = 17.64, P < 0.001). There were no significant differences in escape angle between frogs that I approached from the front (mean = 130.4°, SE = 2.59°) or the side (mean = 126.3°, SE = 3.75°, Tukey interval: -0.261, 0.626). The angle of escape was not uniform and directional escape was around 120° across all tests. Frontal and side approaches led to escape angles near 120° but attacks from the rear resulted in two modes of escape, at about 180° and 120° from the angle of approach. These frogs have a possible blind spot in the rear of their field of vision that might explain this bimodal escape pattern in rear attacks. The tendency to jump away at an angle rather than strait away from the predator likely represents as an evolutionary compromise between an attempt to maximize angular and linear displacement from the attacking predator. This optimal strategy may demonstrate a fitness and survival advantage.
description: Acta Herpetologica, Vol 6 No 2 (2011)
Gain of Regularity for the KP-I Equation
Creators: name: Levandosky, Julie
name: Sepulveda, Mauricio
name: Vera, Octavio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we study the smoothness properties of solutions to the KP-I equation. We show that the equation's dispersive nature leads to a gain in regularity for the solution. In particular, if the initial data $ϕ$ possesses certain regularity and sufficient decay as $x \to \infty$, then the solution $u(t)$ will be smoother than $ϕ$ for $0 < t \leq T$ where $T$ is the existence time of the solution.
Exploring the relationship between emotional competence, alexithymia, interoception, and verbal reasoning ability
Creators: name: Edgar, Christopher
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Personality and Social Contexts
subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: An online/web-based study aiming to use an individual differences approach to test a multi-route model of alexithymia, via an exploration of the relationships between multiple measures of emotional competence, alexithymia, interoception, and verbal reasoning ability. Primary methods used involve a mixture of self-report questionnaires and behavioural tests.
On the `Semantics' of Differential Privacy: A Bayesian Formulation
Creators: name: Kasiviswanathan, Shiva Prasad
name: Smith, Adam
Publisher: name: arXiv
Year: 2008
Subjects: subject: Cryptography and Security (cs.CR)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Differential privacy is a definition of "privacy'" for algorithms that analyze and publish information about statistical databases. It is often claimed that differential privacy provides guarantees against adversaries with arbitrary side information. In this paper, we provide a precise formulation of these guarantees in terms of the inferences drawn by a Bayesian adversary. We show that this formulation is satisfied by both "vanilla" differential privacy as well as a relaxation known as (epsilon,delta)-differential privacy. Our formulation follows the ideas originally due to Dwork and McSherry [Dwork 2006]. This paper is, to our knowledge, the first place such a formulation appears explicitly. The analysis of the relaxed definition is new to this paper, and provides some concrete guidance for setting parameters when using (epsilon,delta)-differential privacy.
description: Older version of this paper was titled: "A Note on Differential Privacy: Defining Resistance to Arbitrary Side Information"
Gravitational axial perturbations and quasinormal modes of loop quantum black holes
Creators: name: Cruz, M. B.
name: Silva, C. A. S.
name: Brito, F. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Loop Quantum Gravity (LQG) is a theory that proposes a way to model the behavior of the spacetime in situations where its atomic characteristic arises. Among these situations, the spacetime behavior near the Big Bang or black hole's singularity. The detection of gravitational waves, on the other hand, has opened the way to new perspectives in the investigation of the spacetime structure. In this work, by the use of a WKB method introduced by Schutz and Will \cite{Schutz:1985zz}, and after improved by Iyer and Will \cite{s.iyer-prd35}, we study the gravitational wave spectrum emitted by loop quantum black holes, which correspond to a quantized version of the Schwarzschild spacetime by LQG techniques. From the results obtained, loop quantum black holes have been shown stable under axial gravitational perturbations.
description: Accepted for publication in EPJC