cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamic polymers: invariant measures and ordering by noise
Creators: name: Bakhtin, Yuri
name: Chen, Hong-Bin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37L40, 37L55, 35R60, 37H99, 60K35, 60K37, 82D60

description: We develop a dynamical approach to infinite volume directed polymer measures in random environments. We define polymer dynamics in 1+1 dimension as a stochastic gradient flow on polymers pinned at the origin, for energy involving quadratic nearest neighbor interaction and local interaction with random environment. We prove existence and uniqueness of the solution, continuity of the flow, the order-preserving property with respect to the coordinatewise partial order, and the invariance of the asymptotic slope. We establish ordering by noise which means that if two initial conditions have distinct slopes, then the associated solutions eventually get ordered coordinatewise. This, along with the shear-invariance property and existing results on static infinite volume polymer measures, allows to prove that for a fixed asymptotic slope and almost every realization of the environment, the polymer dynamics has a unique invariant distribution given by a unique infinite volume polymer measure, and, moreover, One Force -- One Solution principle holds. We also prove that every polymer measure is concentrated on paths with well-defined asymptotic slopes and give an estimate on deviations from straight lines.
description: 49 pages
Lived experience of gestational diabetes mellitus among immigrant South Asian women in Australia
Creators: name: Bandyopadhyay, M
name: Small, Rhonda
name: Davey, Mary-Ann
name: Oats, JJN
name: Forster, Della
name: Aylward, A
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 4204
subject: Midwifery
classificationCode: 3215
subject: Reproductive medicine

description: Background: Women from South Asia have a high incidence of gestational diabetes mellitus (GDM) placing them at risk of adverse pregnancy outcomes. Despite the higher rates of GDM in this group, there are no studies of their experiences of living with GDM in Australia or elsewhere. Aims: We aimed to explore the experiences and understandings of South Asian women in Melbourne, Australia, after diagnosis with GDM. Methods: A qualitative approach was used. Face-to-face in-depth interviews were conducted with 17 immigrant women from South Asia recently diagnosed with GDM. They were interviewed in the language of their choice at two time points: in pregnancy after GDM diagnosis and at six weeks postpartum. Thematic analysis was conducted to identify common patterns and salient themes within and across narratives, also taking into account any divergent experiences. Results: Before the diagnosis of GDM, women's knowledge and awareness of any diabetes were low. Women and their partners were upset by the diagnosis. Dietary advice received was seen to be challenging in the context of culturally different food habits and consequently managing diet after diagnosis proved difficult. Different attitudes to exercise in pregnancy also raised issues for women. Women said they would try their best to maintain lifestyle modifications postnatally, but were uncertain about sustaining these in the long term. Conclusion: South Asian women require culturally appropriate advice regarding strategies to reduce their risk of GDM as early as possible in pregnancy, ideally at the time pregnancy is confirmed. © 2011 The Authors. Australian and New Zealand Journal of Obstetrics and Gynaecology © 2011 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.
Modulated spin waves and robust quasi-solitons in classical Heisenberg rings
Creators: name: Schmidt, Heinz-Jürgen
name: Schröder, Christian
name: Luban, Marshall
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the dynamical behavior of finite rings of classical spin vectors interacting via nearest-neighbor isotropic exchange in an external magnetic field. Our approach is to utilize the solutions of a continuum version of the discrete spin equations of motion (EOM) which we derive by assuming continuous modulations of spin wave solutions of the EOM for discrete spins. This continuous EOM reduces to the Landau-Lifshitz equation in a particular limiting regime. The usefulness of the continuum EOM is demonstrated by the fact that the time-evolved numerical solutions of the discrete spin EOM closely track the corresponding time-evolved solutions of the continuum equation. Of special interest, our continuum EOM possesses soliton solutions, and we find that these characteristics are also exhibited by the corresponding solutions of the discrete EOM. The robustness of solitons is demonstrated by considering cases where initial states are truncated versions of soliton states and by numerical simulations of the discrete EOM equations when the spins are coupled to a heat bath at finite temperatures.
UN NUOVO DUVALIUS TROGLOBIO DELLA SICILIA DEL “GRUPPO SILVESTRII” (COLEOPTERA, CARABIDAE)
Creators: name: Magrini, Paolo
name: Petrioli, Andrea
name: Degiovanni, Augusto
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Nella presente nota viene descritto un nuovo Duvalius troglobio della Sicilia occidentale appartenente al gruppo silvestrii (sensu Magrini, 1997-1998). Il nuovo taxon, come la specie nominale del gruppo e Duvalius adelphus (Magrini et al., 2008), presenta un edeago di grandi dimensioni, fornito di una lamella copulatrice anch’essa assai grande, conformata a doccia e con apice inciso di consistenza membranosa. La nuova specie risulta facilmente distinguibile e ben caratterizzata per la conformazione dell’habitus e dell’organo copulatore maschile (edeago e lamella).
description: Fragmenta Entomologica, Vol. 42 No. 2 (2010)
Non-Affine Displacements Below Jamming under Athermal Quasi-Static Compression
Creators: name: Ikeda, Harukuni
name: Hukushima, Koji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Critical properties of frictionless spherical particles below jamming are studied using extensive numerical simulations, paying particular attention to the non-affine part of the displacements during the athermal quasi-static compression. It is shown that the squared norm of the non-affine displacement exhibits a power-law divergence toward the jamming transition point. A possible connection between this critical exponent and that of the shear viscosity is discussed. The participation ratio of the displacements vanishes in the thermodynamic limit at the transition point, meaning that the non-affine displacements are localized marginally with a fractal dimension. Furthermore, the distribution of the displacement is shown to have a power-law tail, the exponent of which is related to the fractal dimension.
description: 6pages, 5 figures
The Optimal Pricing of Pollution When Enforcement is Costly
Creators: name: Stranlund, John K.
name: Chavez, Carlos A.
name: Villena, Mauricio G.
name: Stranlund, John K.
name: Chavez, Carlos A.
name: Villena, Mauricio G.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Compliance
subject: Enforcement
subject: Emissions Taxes
subject: Monitoring
subject: Asymmetric Information
subject: Uncertainty

description: We consider the pricing of a uniformly mixed pollutant when enforcement is costly with a model of optimal, possibly firm-specific, emissions taxes and their enforcement. We argue that optimality requires an enforcement strategy that induces full compliance by every firm. This holds whether or not regulators have complete information about firms’ abatement costs, the costs of monitoring them for compliance, or the costs of collecting penalties from noncompliant firms. Moreover, ignoring several unrealistic special cases, optimality requires discriminatory emissions taxes except when regulators are unable to observe firms’ abatement costs, the costs of monitoring individual firms, or any firm-specific characteristic that is known to be jointly distributed with either the firms’ abatement costs or their monitoring costs. In many pollution control settings, especially those that have been subject to various forms of environmental regulation in the past, regulators are not likely to be so ill-informed about individual firms. In these settings, policies that set or generate a uniform pollution price like conventional designs involving uniform taxes and competitive emission trading with freely-allocated or auctioned permits will not be efficient.
NOTES ON THE DUVALIUS SPECIES OF THE TAYGETOS MASSIF (PELOPONNESE, SOUTHERN GREECE), WITH DESCRIPTION OF THE MALE FEATURES OF DUVALIUS (DUVALIUS) MIREI DEUVE, 2001 (COLEOPTERA, CARABIDAE)
Creators: name: Casale, Achille
name: Lebenbauer, Thomas
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Four species of genus Duvalius (sensu stricto) are known so far from caves and upper hypogean zone (M.S.S.) in the Taygetos massif (Peloponnese, Southern Greece): Duvalius (Duvalius) taygetanus Casale, 1979, D. (D.) genesti Casale & Vigna Taglianti, 1984, D. (D.) diaphanus (Rottenberg, 1874), and D. (D.) mirei Deuve, 2001. Two of them, D. diaphanus and D. mirei, are large sized, sibling species with reduced but still evident and pigmented eyes, syntopic at high altitude above 2000 m a.s.l.. The male features and characters of the male genitalia of D. mirei are here described for the first time, and compared with those of D. diaphanus. Furthermore, a key for identification of the four sympatric Duvalius species known so far from Taygetos Mt. is provided.
description: Fragmenta Entomologica, Vol. 42 No. 2 (2010)
Equation-Free Dynamic Renormalization: Self-Similarity in Multidimensional Particle System Dynamics
Creators: name: Zou, Yu
name: Kevrekidis, Ioannis
name: Ghanem, Roger
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F25

description: We present an equation-free dynamic renormalization approach to the computational study of coarse-grained, self-similar dynamic behavior in multidimensional particle systems. The approach is aimed at problems for which evolution equations for coarse-scale observables (e.g. particle density) are not explicitly available. Our illustrative example involves Brownian particles in a 2D Couette flow; marginal and conditional Inverse Cumulative Distribution Functions (ICDFs) constitute the macroscopic observables of the evolving particle distributions.
description: 7 pages, 5 figures
[Field notes]
Creators: name: Cortés Vásquez, Rafael
name: García Cortés, María Agustina
name: García García, Luis
name: Santiago Francisco, José
name: McFarland, Teresa
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: tlp

description: The digital files associated with this Item include a series of scanned images from original physical objects. These images are aggregated at lower resolution in the file 2020-02.002.pdf. The original full resolution scans are collected in 2020-02.002.zip. Metadata pertaining to each scanned image is compiled in the tab-separated text file 2020-02.002.txt.
From diffusive mass transfer in Stokes flow to low Reynolds number Marangoni boats
Creators: name: Ender, Hendrik
name: Kierfeld, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a theory for the self-propulsion of symmetric, half spherical Marangoni boats (soap or camphor boats) at low Reynolds numbers. Propulsion is generated by release (diffusive emission or dissolution) of water-soluble surfactant molecules, which modulate the air-water interfacial tension. Propulsion either requires asymmetric release or spontaneous symmetry breaking by coupling to advection for a perfectly symmetrical swimmer. We study the diffusion-advection problem for a sphere in Stokes flow analytically and numerically both for constant concentration and constant flux boundary conditions. We derive novel results for concentration profiles under constant flux boundary conditions and for the Nusselt number (the dimensionless ratio of total emitted flux and diffusive flux). Based on these results, we analyze the Marangoni boat for small Marangoni propulsion (low Peclet number) and show that two swimming regimes exist, a diffusive regime at low velocities and an advection-dominated regime at high swimmer velocities. We describe both the limit of large Marangoni propulsion (high Peclet number) and the effects from evaporation by approximative analytical theories. The swimming velocity is determined by force balance, and we obtain a general expression for the Marangoni forces, which comprises both direct Marangoni forces from the surface tension gradient and Marangoni flow forces. We unravel, whether the Marangoni flow contribution is exerting a forward or backward force during propulsion. Our main result is the relation between Peclet number and swimming velocity. Spontaneous symmetry breaking and, thus, swimming occurs for a perfectly symmetrical swimmer above a critical Peclet number, which becomes small for large system sizes. We find a supercritical swimming bifurcation for a symmetric swimmer and an avoided bifurcation in the presence of an asymmetry.
description: 25 pages, 10 figures. arXiv admin note: text overlap with arXiv:2012.14364
UNA NUOVA TYPHLOREICHEIA DELLA SICILIA (COLEOPTERA, CARABIDAE)
Creators: name: Magrini, Paolo
name: Degiovanni, Augusto
name: Petrioli, Andrea
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Nella presente nota viene descritta Typhloreicheia bavierai n. sp. della grotta del Sughero (R.N.O.Zingaro, Scopello, Trapani). La nuova specie, nota per ora solo in un unico esemplare femmina, si differenzia essenzialmente da quelle siciliane già conosciute, per il corpo estremamente appiattito, i metatarsi molto allungati (specialmente l’onichio), la chetotassi discale limitata alle interstrie 3 e 5, la doccia omerale con poche e piccolissime spine.
description: Fragmenta Entomologica, Vol. 42 No. 2 (2010)
Seafood Label Effectiveness in the Amherst Market: A Study of the Quality and Quantity of Point of Purchase Information
Creators: name: Wagstaff, James
name: Wagstaff, James
Publisher: name: Unknown
Year: 2007
Subjects: subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Seafood
subject: Country of Origin Labeling
subject: Retail Availability

description: As evidenced by the recent release of a comprehensive Institute of Medicine report on seafood consumption and by the passage of the 2002 Farm Bill, it is clear that there is growing concern about the health benefits and risks of fish consumption. This research project was designed to analyze the seafood market in Amherst, Massachusetts, and, specifically, to explore the effectiveness of seafood product labeling provided by the largest retailers in the area. Studying the availability of seafood and the associated labeling practices reveals how the Amherst market meets the needs of different consumers. While each venue generally adheres to the regulatory requirements of seafood labeling, this research includes recommendations as to how the market might benefit from improved labeling and consumer information.
UNA NUOVA TYPHLOREICHEIA DEL LAZIO (COLEOPTERA, CARABIDAE)
Creators: name: Degiovanni, Augusto
name: Bastianini, Marco
name: Petrioli, Andrea
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Nella presente nota viene descritta Typhloreicheia magrinii n. sp. di Prato di Campoli (Monti Ernici, Lazio). La nuova specie, nota per ora solo della località tipica, si differenzia essenzialmente da quelle peninsulari già conosciute per la singolare forma dell’edeago e, soprattutto, della lamella copulatrice il cui aspetto potremmo definire a “tenda da campeggio”. La nuova specie è stata raccolta in quota, sotto pietre interrate in faggeta.
description: Fragmenta Entomologica, Vol. 42 No. 2 (2010)
Multiscale Mixing Efficiencies for Steady Sources
Creators: name: Doering, Charles R.
name: Thiffeault, Jean-Luc
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Multiscale mixing efficiencies for passive scalar advection are defined in terms of the suppression of variance weighted at various length scales. We consider scalars maintained by temporally steady but spatially inhomogeneous sources, stirred by statistically homogeneous and isotropic incompressible flows including fully developed turbulence. The mixing efficiencies are rigorously bounded in terms of the Peclet number and specific quantitative features of the source. Scaling exponents for the bounds at high Peclet number depend on the spectrum of length scales in the source, indicating that molecular diffusion plays a more important quantitative role than that implied by classical eddy diffusion theories.
description: 4 pages, 1 figure. RevTex4 format with psfrag macros. Final version
Die Frage nach den Wesensbestimmungen von Katholizismus und Protestantismus als ökumenisches Problem
Creators: name: Leuze, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 4 (1978): Ökumenische Rundschau, Band 27, Heft 4
A remark on renormalization group theoretical perturbation in a class of ordinary differential equations
Creators: name: Kuniba, Atsuo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 34D15

description: We revisit the renormalization group (RG) theoretical perturbation theory on oscillator-type second-order ordinary differential equations. For a class of potentials, we show a simple functional relation among secular coefficients of the harmonics in the naive perturbation series. It leads to an inversion formula between bare and renormalized amplitudes and an elementary proof of the absence of secular terms in all orders of the RG series. The result covers nonautonomous as well as autonomous cases and refines earlier studies, including the classic examples of Van der Pol, Mathieu, Duffing, and Rayleigh equations.
description: 10 pages, 1 figure, minor revision
Surfactant-loaded capsules as Marangoni microswimmers at the air-water interface: Symmetry breaking and spontaneous propulsion by surfactant diffusion and advection
Creators: name: Ender, Hendrik
name: Froin, Ann-Kathrin
name: Rehage, Heinz
name: Kierfeld, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present a realization of a fast interfacial Marangoni microswimmer by a half-spherical alginate capsule at the air-water interface, which diffusively releases water-soluble spreading molecules (weak surfactants such as polyethylene glycol (PEG)), which act as "fuel" by modulating the air-water interfacial tension. For a number of different fuels, we can observe symmetry breaking and spontaneous propulsion although the alginate particle and emission are isotropic. The propulsion mechanism is similar to soap or camphor boats, which are, however, typically asymmetric in shape or emission to select a swimming direction. We develop a theory of Marangoni boat propulsion starting from low Reynolds numbers by analyzing the coupled problems of surfactant diffusion and advection and fluid flow, which includes surfactant-induced fluid Marangoni flow, and surfactant adsorption at the air-water interface; we also include a possible evaporation of surfactant. The swimming velocity is determined by the balance of drag and Marangoni forces. We show that spontaneous symmetry breaking resulting in propulsion is possible above a critical dimensionless surfactant emission rate (Peclet number). We derive the relation between Peclet number and swimming speed and generalize to higher Reynolds numbers utilizing the concept of the Nusselt number. The theory explains the observed swimming speeds for PEG-alginate capsules, and we unravel the differences to other Marangoni boat systems based on camphor, which are mainly caused by surfactant evaporation from the liquid-air interface. The capsule Marangoni microswimmers also exhibit surfactant-mediated repulsive interactions with walls, which can be qualitatively explained by surfactant accumulation at the wall.
description: 21 pages, 14 figures
Radiofrequency spectroscopy of one-dimensional trapped Bose polarons: crossover from the adiabatic to the diabatic regime
Creators: name: Mistakidis, S. I.
name: Koutentakis, G. M.
name: Grusdt, F.
name: Sadeghpour, H. R.
name: Schmelcher, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the crossover of the impurity-induced dynamics, in trapped one-dimensional Bose polarons subject to radio frequency (rf) pulses of varying intensity, from an adiabatic to a diabatic regime. Utilizing adiabatic pulses for either weak repulsive or attractive impurity-medium interactions, a multitude of polaronic excitations or mode-couplings of the impurity-bath interaction with the collective breathing motion of the bosonic medium are spectrally resolved. We find that for strongly repulsive impurity-bath interactions, a temporal orthogonality catastrophe manifests in resonances in the excitation spectra where impurity coherence vanishes. When two impurities are introduced, impurity-impurity correlations, for either attractive or strong repulsive couplings, induce a spectral shift of the resonances with respect to the single impurity. For a heavy impurity, the polaronic peak is accompanied by a series of equidistant side-band resonances, related to interference of the impurity spin dynamics and the sound waves of the bath. In all cases, we enter the diabatic transfer regime for an increasing bare Rabi frequency of the rf field with a Lorentzian spectral shape featuring a single polaronic resonance. The findings in this work on the effects of external trap, rf pulse and impurity-impurity interaction should have implications for the new generations of cold-atom experiments.
description: 23 pages, 11 figures
Multifractal Analysis of Packed Swiss Cheese Cosmologies
Creators: name: Mureika, J. R.
name: Dyer, C. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The multifractal spectrum of various three-dimensional representations of Packed Swiss Cheese cosmologies in open, closed, and flat spaces are measured, and it is determined that the curvature of the space does not alter the associated fractal structure. These results are compared to observational data and simulated models of large scale galaxy clustering, to assess the viability of the PSC as a candidate for such structure formation. It is found that the PSC dimension spectra do not match those of observation, and possible solutions to this discrepancy are offered, including accounting for potential luminosity biasing effects. Various random and uniform sets are also analyzed to provide insight into the meaning of the multifractal spectrum as it relates to the observed scaling behaviors.
description: 3 latex files, 18 ps figures
New effective precession spin for modeling multimodal gravitational waveforms in the strong-field regime
Creators: name: Thomas, Lucy M.
name: Schmidt, Patricia
name: Pratten, Geraint
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Accurately modelling the complete gravitational-wave signal from precessing binary black holes through the late inspiral, merger and ringdown remains a challenging problem. The lack of analytic solutions for the precession dynamics of generic double-spin systems, and the high dimensionality of the problem, obfuscate the incorporation of strong-field spin-precession information into semi-analytic waveform models used in gravitational-wave data analysis. Previously, an effective precession spin, $χ_p$, was introduced to reduce the number of spin degrees of freedom. Here, we show that $χ_p$ alone does not accurately reproduce higher-order multipolar modes, in particular the ones that carry strong imprints due to precession such as the $(2,1)$-mode. To improve the higher-mode content, and in particular to facilitate an accurate incorporation of precession effects in the strong-field regime into waveform models, we introduce a new dimensional reduction through an effective precession spin vector, $\vecχ_\perp$, which takes into account precessing spin information from both black holes. We show that this adapted effective precession spin (i) mimics the precession dynamics of the fully precessing configuration remarkably well, (ii) captures the signature features of precession in higher-order modes, and (iii) reproduces the final state of the remnant black hole with high accuracy for the overwhelming majority of configurations. We demonstrate the efficacy of this two-dimensional precession spin in the strong-field regime, paving the path for meaningful calibration of the precessing sector of semi-analytic waveform models with a faithful representation of higher-order modes through merger and the remnant black hole spin.
description: Matches version published in Phys. Rev. D. 23 pages (incl. appendices and bibliography), 17 figures
Rigorous proof of Luttinger liquid behavior in the 1d Hubbard model
Creators: name: Mastropietro, Vieri
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We give the first rigorous (non perturbative) proof of Luttinger liquid behavior in the one dimensional Hubbard model, for small repulsive interaction and values of the density different from half filling. The analysis is based on the combination of multiscale analysis with Ward identities bases on a hidden and approximate local chiral gauge invariance. No use is done of exact solutions or special integrability properties of the Hubbard model, and the results can be in fact easily generalized to include non local interactions, magnetic fields or interaction with external potentials
Factors limiting moose numbers and their interactions with elk and wolves in the central Rocky Mountains, Canada
Creators: name: Hurd, Thomas E.
Publisher: name: University of British Columbia
Year: 2009

description: Numbers of moose declined in Banff National Park between the mid-1940's and present. This coincided with increases in abundance of both elk and wolves. To explain the decline, I tested several predictions related to exploitative competition with elk, and apparent competition mediated by wolves. The relationship I found between moose and elk winter pellet abundance was consistent with the inverse density pattern expected if exploitative competition and/or apparent competition were operative. Interactions between the two cervids and a shared food resource - willow - supported several of the key criteria required to demonstrate exploitative competition. The two cervids overlapped in resource use, and use by elk probably reduced resource availability to moose. The large asymmetries in distribution, abundance, diet breadth, diet overlap, and browse utilization provided the conditions necessary for elk to dominate competitive interactions. Interactions between predators (wolf and grizzly bear) and the two cervids revealed the potential for apparent competition where the impact on secondary prey, moose, was greater than on primary prey, elk. Predation rates on radio-collared moose appeared unsustainable. The two forms of "competition" operated at different scales, and appeared additive in their negative effect on moose. Exploitative competition was localized in areas of high elk density and apparent competition (predation) operated throughout the study area. My findings contrast with the usual study of mixed competition-predation systems where the two factors provide a mechanism for coexistence.
title: Μοντελοποίηση διεργασίας επεξεργασίας νερού με αντίστροφη ώσμωση με χρήση
ανανεώσιμων πηγών ενέργειας
title: Modelling of a reverse osmosis water treatment process using renewable energy sources
Creators: name: Αλεξανδρακης Σωτηριος
Publisher: name: Technical University of Crete
Year: 2024

description: Αντικείμενο της παρούσας διπλωματικής εργασίας είναι η μαθηματική μοντελοποίηση ενός συστήματος αντίστροφης ώσμωσης με στόχο την αφαλάτωση θαλασσινού νερού και η διερεύνηση της ενσωμάτωσης ανανεώσιμων πηγών ενέργειας (ΑΠΕ), δηλαδή τα αιολικά συστήματα και τα φωτοβολταϊκά, για την κάλυψη των ενεργειακών απαιτήσεων του συστήματος μειώνοντας τις περιβαλλοντικές επιπτώσεις.
Έτσι, έχοντας καταλήξει στο συμπέρασμα της αναγκαιότητας της μελέτης της αφαλάτωσης θαλασσινού νερού με την αντίστροφη ώσμωση, καθώς και της χρήσης ΑΠΕ, η παρούσα εργασία συνεχίζει με το 2ο κεφάλαιο, στο οποίο αναλύονται οι σημαντικότερες μέθοδοι αφαλάτωσης, οι οποίες κατηγοριοποιούνται στις θερμικές και τις τεχνολογίες μεμβρανών. Η αρχή λειτουργίας και βασικά χαρακτηριστικά της κάθε κατηγορίας αναλύονται.
Στη συνέχεια, στα πλαίσια του 3ου κεφαλαίου, μελετάται η αρχή λειτουργίας και οι παράμετροι που επηρεάζουν την απόδοση ενός συστήματος αντίστροφης ώσμωσης. Ακολουθεί η ανάπτυξη του μαθηματικού μοντέλου, περιλαμβάνοντας τις μαθηματικές εξισώσεις και τις σχεδιαστικές παραμέτρους που απαιτούνται. Το 4ο κεφάλαιο αναπτύσσεται το μαθηματικό μοντέλο για την πρόβλεψη της απόδοσης και των ενεργειακών απαιτήσεων της συγκεκριμένης διεργασίας. Παρουσιάζονται όλες οι απαιτούμενες μαθηματικές εξισώσεις για τον υπολογισμό των σημαντικότερων παραμέτρων, όπως, μεταξύ άλλων, ο ρυθμός ροής του νερού και του άλατος, η απόρριψη αλατότητας, η συγκέντρωση άλατος στο διήθημα.
Στο 5ο κεφάλαιο γίνεται αναφορά στις ενεργειακές απαιτήσεις των συστημάτων αντίστροφης ώσμωσης και παρουσιάζονται τα αιολικά και φωτοβολταϊκά συστήματα ως ανανεώσιμες πηγές ενέργειας του συστήματος. Τέλος, παρουσιάζεται η μεθοδολογία υπολογισμού την καταναλισκόμενης ενέργειας ενός συστήματος αντίστροφης ώσμωσης.
Στο 6ο κεφάλαιο επεξηγείται η υπολογιστική υλοποίηση του μαθηματικού μοντέλου στο πρόγραμμα Process Simulation and Modelling (PSM). Τα απαιτούμενα δεδομένα εισόδου είναι η ποσότητα και οι ποιοτικές παράμετροι του θαλασσινού νερού, τεχνικά χαρακτηριστικά της μεμβράνης αντίστροφης ώσμωσης καθώς και παράμετροι λειτουργίας, όπως η ανάκτηση και η πίεση. Ως αποτελέσματα επιστρέφονται παράμετροι που εξηγήθηκαν στο 4ο κεφάλαιο, όπως οι ποιοτικές παράμετροι του διηθήματος και του συμπυκνώματος, η απαιτούμενη ενέργεια και ο ρυθμός ροής όλων των ρευμάτων. Όλα τα αποτελέσματα αναφέρονται στο 7ο κεφάλαιο και τα κυριότερα συμπεράσματα συνοψίζονται στο 8ο κεφάλαιο της παρούσας διπλωματικής εργασίας.
Signal detection, modularity and the correlation between extrinsic and intrinsic noise in biochemical networks
Creators: name: Tanase-Nicola, Sorin
name: Warren, Patrick B.
name: Wolde, Pieter Rein ten
Publisher: name: arXiv
Year: 2005
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Understanding cell function requires an accurate description of how noise is transmitted through biochemical networks. We present an analytical result for the power spectrum of the output signal of a biochemical network that takes into account the correlations between the noise in the input signal (the extrinsic noise) and the noise in the reactions that constitute the network (the intrinsic noise). These correlations arise from the fact that the reactions by which biochemical signals are detected necessarily affect the signaling molecules and the detection components of the network simultaneously. We show that anti-correlation between the extrinsic and intrinsic noise enhances the robustness of zero-order ultrasensitive networks to biochemical noise. We discuss the consequences of the correlation between extrinsic and intrinsic noise for a modular description of noise transmission through large biochemical networks in the context of the mitogen-activated protein kinase cascade.
description: 21 pages, 2 figures, 5 tables
Future-Aware Diverse Trends Framework for Recommendation
Creators: name: Lu, Yujie
name: Zhang, Shengyu
name: Huang, Yingxuan
name: Wang, Luyao
name: Yu, Xinyao
name: Zhao, Zhou
name: Wu, Fei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In recommender systems, modeling user-item behaviors is essential for user representation learning. Existing sequential recommenders consider the sequential correlations between historically interacted items for capturing users' historical preferences. However, since users' preferences are by nature time-evolving and diversified, solely modeling the historical preference (without being aware of the time-evolving trends of preferences) can be inferior for recommending complementary or fresh items and thus hurt the effectiveness of recommender systems. In this paper, we bridge the gap between the past preference and potential future preference by proposing the future-aware diverse trends (FAT) framework. By future-aware, for each inspected user, we construct the future sequences from other similar users, which comprise of behaviors that happen after the last behavior of the inspected user, based on a proposed neighbor behavior extractor. By diverse trends, supposing the future preferences can be diversified, we propose the diverse trends extractor and the time-aware mechanism to represent the possible trends of preferences for a given user with multiple vectors. We leverage both the representations of historical preference and possible future trends to obtain the final recommendation. The quantitative and qualitative results from relatively extensive experiments on real-world datasets demonstrate the proposed framework not only outperforms the state-of-the-art sequential recommendation methods across various metrics, but also makes complementary and fresh recommendations.
UNA NUOVA STRAORDINARIA SPECIE DEL GENERE DYSDERA DELL’ITALIA MERIDIONALE (ARANEAE, DYSDERIDAE)
Creators: name: Gasparo, Fulvio
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Dysdera aberrans n. sp. (♂♀) viene descritta su esemplari raccolti presso Casacalenda (Campobasso). La nuova specie presenta caratteristiche assolutamente peculiari, in particolare per quanto riguarda la morfologia degli organi genitali maschili, che non ne consentono la collocazione in alcuno dei gruppi istituiti per ospitare le 250 specie congeneri sinora conosciute.
description: Fragmenta Entomologica, Vol. 42 No. 2 (2010)
A.-M. Guerry's Moral Statistics of France: Challenges for Multivariable Spatial Analysis
Creators: name: Friendly, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: André-Michel Guerry's (1833) Essai sur la Statistique Morale de la France was one of the foundation studies of modern social science. Guerry assembled data on crimes, suicides, literacy and other ``moral statistics,'' and used tables and maps to analyze a variety of social issues in perhaps the first comprehensive study relating such variables. Indeed, the Essai may be considered the book that launched modern empirical social science, for the questions raised and the methods Guerry developed to try to answer them. Guerry's data consist of a large number of variables recorded for each of the départments of France in the 1820--1830s and therefore involve both multivariate and geographical aspects. In addition to historical interest, these data provide the opportunity to ask how modern methods of statistics, graphics, thematic cartography and geovisualization can shed further light on the questions he raised. We present a variety of methods attempting to address Guerry's challenge for multivariate spatial statistics.
description: Published in at http://dx.doi.org/10.1214/07-STS241 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
FANTASY: User-Friendly Symplectic Geodesic Integrator for Arbitrary Metrics with Automatic Differentiation
Creators: name: Christian, Pierre
name: Chan, Chi-kwan
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present FANTASY (Finally A Numerical Trajectory Algorithm both Straightforward and sYmplectic), a user-friendly, open-source symplectic geodesic integrator written in Python. FANTASY is designed to work "out-of-the-box" and does not require anything from the user aside from the metric and the initial conditions for the geodesics. FANTASY efficiently computes derivatives up to machine precision using automatic differentiation, allowing the integration of geodesics in arbitrary space(times) without the need for the user to manually input Christoffel symbols or any other metric derivatives. Further, FANTASY utilizes a Hamiltonian integration scheme that doubles the phase space, where two copies of the particle phase space are evolved together. This technique allows for an integration scheme that is both explicit and symplectic, even when the Hamiltonian is not separable. FANTASY comes prebuilt with second and fourth order schemes, and is easily extendible to higher order schemes. FANTASY also includes an automatic Jacobian calculator that allows for coordinate transformations to be done automatically.
description: Minor typos corrected, matches accepted version
NEW RECORDS OF HELEOMYZIDAE FOR ITALIAN FAUNA (Diptera)
Creators: name: Lo Giudice, Giuseppe
name: Rivosecchi, Leo
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Some faunistic records of Heleomyzidae for italian fauna are provided. Six of the species Oldenbergiella seticerca Papp, 1980, Orbellia myopiformis Robineau-Desvoidy, 1830, Eccoptomera inermis Czerny, 1924, Neoleria flavicornis (Loew, 1862), Acantholeria vockerothi (Hackman, 1969), Gymnomus mariei (Séguy, 1934) and the genera Oldenbergiella and Orbellia are new for italian fauna.
description: Fragmenta Entomologica, Vol. 42 No. 1 (2010)
Equivariant Energy Flow Networks for Jet Tagging
Creators: name: Dolan, Matthew J.
name: Ore, Ayodele
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Jet tagging techniques that make use of deep learning show great potential for improving physics analyses at colliders. One such method is the Energy Flow Network (EFN) - a recently introduced neural network architecture that represents jets as permutation-invariant sets of particle momenta while maintaining infrared and collinear safety. We develop a variant of the Energy Flow Network architecture based on the Deep Sets formalism, incorporating permutation-equivariant layers. We derive conditions under which infrared and collinear safety can be maintained, and study the performance of these networks on the canonical example of W-boson tagging. We find that equivariant Energy Flow Networks have similar performance to Particle Flow Networks, which are superior to standard EFNs. However, equivariant Particle Flow Networks suffer from convergence and overfitting issues. Finally, we study how equivariant networks sculpt the jet mass and provide some initial results on decorrelation using planing.
description: 20 pages, 8 figures
CATALOGUE OF THE STAPHYLINIDAE OF CYPRUS AND ASIA MINOR (Coleoptera) (*)
Creators: name: Bordoni, Arnaldo
Publisher: name: Fragmenta Entomologica
Year: 2010

description: (*) 191° contribution to the knowledge of the Staphylinidae. The catalogue includes all the species described and/or referred to Cyprus and Asia Minor until 2007 inclusive. The bibliography on the species description to that of 2001-2002 and the geonemical citations is generally available in Herman (2001) and Smetana (2002); that of the species described or mentioned in contributions appeared after 2002 can be found in the bibliography at the hend of this catalogue. Described species of Cyprus and/or Asia minor are accompanied by the following informations: type locality or list of the localitys mentioned in the description, institutions or collections where is preserved the type, whether is male or female or if you do not know the sex; if it has been designed the lectotype and the author of the designation, the distribution. Some synonymies are proposed which will be discussed elsewhere, and some general remarks on the genus Geostiba Thomson.
description: Fragmenta Entomologica, Vol. 42 No. 1 (2010)
Resolving the compact dusty discs around binary post-AGB stars using N-band interferometry
Creators: name: Deroo, P.
name: Van Winckel, H.
name: Min, M.
name: Waters, L. B. F. M.
name: Verhoelst, T.
name: Jaffe, W.
name: Morel, S.
name: Paresce, F.
name: Richichi, A.
name: Stee, P.
name: Wittowski, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first mid-IR long baseline interferometric observations of the circumstellar matter around binary post-AGB stars. Two objects, SX Cen and HD 52961, were observed using the VLTI/MIDI instrument during Science Demonstration Time. Both objects are known binaries for which a stable circumbinary disc is proposed to explain the SED characteristics. This is corroborated by our N-band spectrum showing a crystallinity fraction of more than 50 % for both objects, pointing to a stable environment where dust processing can occur. Surprisingly, the dust surrounding SX Cen is not resolved in the interferometric observations providing an upper limit of 11 mas (or 18 AU at the distance of this object) on the diameter of the dust emission. This confirms the very compact nature of its circumstellar environment. The dust emission around HD 52961 originates from a very small but resolved region, estimated to be ~ 35 mas at 8 micron and ~ 55 mas at 13 micron. These results confirm the disc interpretation of the SED of both stars. In HD 52961, the dust is not homogeneous in its chemical composition: the crystallinity is clearly concentrated in the hotter inner region. Whether this is a result of the formation process of the disc, or due to annealing during the long storage time in the disc is not clear.
description: 12 pages, 10 figures, accepted for publication in A & A
[Field notes]
Creators: name: Cortés Vásquez, Rafael
name: García Cortés, María Agustina
name: García García, Luis
name: Santiago Francisco, José
name: McFarland, Teresa
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: tlp

description: The digital files associated with this Item include a series of scanned images from original physical objects. These images are aggregated at lower resolution in the file 2020-02.001.pdf. The original full resolution scans are collected in 2020-02.001.zip. Metadata pertaining to each scanned image is compiled in the tab-separated text file 2020-02.001.txt.
Electromagnetic Counterparts of Compact Binary Mergers
Creators: name: Ascenzi, Stefano
name: Oganesyan, Gor
name: Branchesi, Marica
name: Ciolfi, Riccardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The first detection of a binary neutron star merger through gravitational waves and photons marked the dawn of multi-messenger astronomy with gravitational waves, and it greatly increased our insight in different fields of astrophysics and fundamental physics. However, many open questions on the physical process involved in a compact binary merger still remain and many of these processes concern plasma physics. With the second generation of gravitational wave interferometers approaching their design sensitivity, the new generation under design study, and new X-ray detectors under development, the high energy Universe will become more and more a unique laboratory for our understanding of plasma in extreme conditions. In this review, we discuss the main electromagnetic signals expected to follow the merger of two compact objects highlighting the main physical processes involved and some of the most important open problems in the field.
description: 39 pages, 6 figures. Published by the Journal of Plasma Physics
UN NUOVO DUVALIUS DELL’UMBRIA, APPARTENENTE A UNA NUOVA LINEA FILETICA (Coleoptera, Carabidae)
Creators: name: Magrini, Paolo
name: Degiovanni, Augusto
name: Cirocchi, Fulvio
Publisher: name: Fragmenta Entomologica
Year: 2010

description: Nella presente nota viene descritto Duvalius irmoi n. sp. dell’Umbria (Grotta Lo Sprofondo, N° 420 U/Pg, Monte Tezio), si tratta di una specie anoftalma e depigmentata che probabilmente abita l’MSS più che le cavità tettoniche di ampie dimensioni della zona. La specie presenta una lamella copulatrice di forma singolare, piccola, con una lamina biforcuta conformata a doccia, sormontata da un fanero mediano impari quadrangolare di grandi dimensioni. La struttura singolare della lamella pone questa specie come capostipite di un nuovo gruppo, che denominiamo “gruppo irmoi” e la sua localizzazione all’interno del Triangolo Etrusco (delimitato dai fiumi Arno, Tevere e costa tirrenica e finora privo di nuovi rappresentanti di questo genere) fa pensare che ulteriori ricerche in quest’area geografica porteranno al reperimento di nuovi taxa similari. Questo nuovo gruppo si pone a metà strada fra il “gruppo vallombrosus”, diffuso più a nord (Toscana-Romagna) e il “gruppo straneoi” diffuso più a sud (Umbria-Lazio-Marche-Abruzzi): la lamina principale dell’endofallo ricorda quella di alcuni Duvalius del “gruppo vallombrosus”, ma è priva del vistoso pacco rotondeggiante di spine presente in questo gruppo (v. iconografia del testo), che è sostituito da un ampio fanero mediano impari, simile a quello di alcune specie del “gruppo straneoi”.
description: Fragmenta Entomologica, Vol. 42 No. 1 (2010)
Documentary Materials on Chamikuro
Creators: name: Inuma Orbe, Antonio
name: Orbe Caro, Gregorio
name: Patow Chota, Alfonso
name: Parker, Stephen
name: Hernández Fonseca, Pedro Pablo
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022

description: Audio and video recordings of elicitation sessions and Spanish-language texts, preliminary transcriptions in TextGrid files, scanned field notes (mostly with phonetic representation using the Americanist system), photographs, organizational documents (e.g., metadata spreadsheet). File bundles 001-008 represent Parker's first period of work on the language (1985, 1987, 1993); file bundles 009-044 represent Parker's second period of work (2020-2021). Only field notes and photographs exist from the first period.

Of the recordings made in 2020-2021, each file bundle typically includes audio and video files from Zoom as well as from an external camera and microphone, as detailed in bundle-level descriptions. The majority of elicitation work was focused on the lexicon, with reference to a previously published word list (see 2019-31.040). Phrases and sentences were also elicited, and many lexical items were embedded in sentences in lexical elicitation sessions. See the master metadata spreadsheet in 2019-31.044 for information about the contents of individual files, especially which ranges of the word list are reviewed.