cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gravitational waves from bubble collisions and fluid motion in strongly supercooled phase transitions
Creators: name: Lewicki, Marek
name: Vaskonen, Ville
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We estimate the gravitational wave spectra generated in strongly supercooled phase transitions by bubble collisions and fluid motion. We derive analytically in the thin-wall approximation the efficiency factor that determines the share of the energy released in the transition between the scalar field and the fluid. We perform numerical simulations including the efficiency factor as a function of bubble radius separately for all points on the bubble surfaces to take into account their different collision times. We find that the efficiency factor does not significantly change the gravitational wave spectra and show that the result can be approximated by multiplying the spectrum obtained without the efficiency factor by its value at the radius $R_{\rm eff} \simeq 5/β$, where $β$ is the approximate inverse duration of the transition. We also provide updated fits for the gravitational wave spectra produced in strongly supercooled transitions from both bubble collisions and fluid motion depending on the behaviour of the sources after the collision.
description: published version
Molossus verrilli J. A. Allen 1908
Creators: name: Wilson, Don E.
name: Mittermeier, Russell A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Molossidae
Molossus
Molossus verrilli

description: 21. Hispaniolan Mastiff Bat Molossus verrilli French: Molosse d'Hispaniola / German: Hispaniola-Samtfledermaus / Spanish: Molosido de La Espanola Other common names: Hispaniolan Free-tailed Bat Taxonomy. Molossus vernlli J. A. Allen, 1908, Samana, Dominican Republic. Molossus verrilli was recently recognized as a distinct species from M. molossus based primarily on molecular divergence. It is the only species of Molossus on Hispaniola. Monotvpic. Distribution. Hispaniola and adjacent Gonave I (Haiti and Dominican Republic). Descriptive notes. Head-body 55-80 mm, tail 30-46 mm, ear 11-15 mm, hindfoot 7-11 mm, forearm 37-41 mm; weight 13-20 g. The Hispaniolan Mastiff Bat is mediumsized and overlaps in size with Pallas’s Mastiff Bat (M. molossus), the Aztec Mastiff Bat (M. alvarezi), and the Pug-nosed Mastiff Bat (M. miller). Dorsal pelage of the Hispaniolan Mastiff Bat varies from medium to dark brown, with pale band covering from one-quarter to one-half the hair length. Ventral pelage is lighter than dorsal pelage. Ears are rounded and arise from same point on forehead. Face, wings, and uropatagium are medium to dark brown. Upper lip and snout are smooth and lack any medial ridge. Tragus is small, and antitragus is constricted at its base. Skull has elongated braincase, triangular occipital region, and infraorbital foramen, opening frontally in frontal view. Basioccipital pits are moderately deep. I* is elongated, with parallel tips. Habitat. Tropical forests, riparian forests, and urban areas from lowlands to elevations of ¢. 460 m. Food and Feeding. The Hispaniolan Mastiff Bat is an aerial insectivore. Breeding. Pregnant Hispaniolan Mastiff Bats were found in May, July, and September, and non-pregnant females in January-February, August, and December. Activity patterns. The Hispaniolan Mastiff Bat starts foraging during sunset, and its activity peak lasts c.1 hour. It has been found roosting in cavities of palm trees and buildings. Movements, Home range and Social organization. The Hispaniolan Mastiff Bat roosts in colonies of up to 23 individuals. It has been observed roosting with the Greater Bulldog Bat (Noctilio leporinus). Status and Conservation. Not assessed on The IUCN Red List. The Hispaniolan Mastiff Bat was previously included in Pallas’s Mastiff Bat that was classified as Least Concern. Given limited distribution of the Hispaniolan Mastiff Bat, more research is needed to clarify its conservation status. Bibliography. Klingener et al. (1978), Loureiro, Lim & Engstrom (2018), Nunez & Ledn (2011), Timm & Genoways (2003).
description: Published as part of Don E. Wilson & Russell A. Mittermeier, 2019, Molossidae, pp. 598-672 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions on page 627, DOI: 10.5281/zenodo.6418279
The Impact of US Intervention and War-time Dynamics on Ethnic-based Political Mobilization in Iraq and Afghanistan Between 1978 and 1989
Creators: name: Yakaboski, Kaitlyn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: This thesis will examine the development of ethnic division in Iraq and Afghanistan over the course of the Soviet invasion of Afghanistan and the Iran-Iraq war through the context of US intervention. Specifically, it will use theories of political mobilization and foreign intervention to argue that in both cases, war-time dynamics increased ethnic-based political organization, and that this process was furthered by US intervention. While war-time dynamics played a more central role in the development of ethnic organization than the indirect impacts of US aid, this thesis demonstrates how US intervention helped to create the very ethnic identities the US has typically claimed have always existed.
Outer automorphisms of algebraic groups and a Skolem-Noether theorem for Albert algebras
Creators: name: Garibaldi, Skip
name: Petersson, Holger P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Primary 20G41, Secondary 11E72, 17C40, 20G15

description: The question of existence of outer automorphisms of a simple algebraic group $G$ arises naturally both when working with the Galois cohomology of $G$ and as an example of the algebro-geometric problem of determining which connected components of the automorphism group of $G$ have rational points. The existence question remains open only for four types of groups, and we settle one of the remaining cases, type $^3D_4$. The key to the proof is a Skolem-Noether theorem for cubic etale subalgebras of Albert algebras which is of independent interest. Necessary and sufficient conditions for a simply connected group of outer type $A$ to admit outer automorphisms of order 2 are also given.
MPEC 2023-Q135 : 2023 QN5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 QN5

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Comparison of Factors Influencing Utilization of Modern Contraceptive Methods among Rural and Urban Women Currently using Family Planning Service in South Wollo Zone, Amhara National Regional State
Creators: name: Ali, Jemal
Publisher: name: Zenodo
Year: 2010

description: Background: Utilization of modern contraceptive methods is related to sociodemographic, reproductive and fertility factors. Previous studies concentrated on identifying these and other determinant factors in rural or urban but it is unclear whether the magnitude of these factors in rural and big urban population similar or not. Objective: The objective of this study is to assess and compare factors influencing utilization of modern contraceptive methods among rural and urban women currently using family planning service in South Wollo Zone, Amhara Region. Methods and materials: Health facility based comparative cross-sectional study was conducted in Dessie town, Jamma and Wereilu Weredas of South Wollo Zone from February to March-2010.The Two rural Weredas were selected from the ten remote weredas located in the western part of the Zone by using simple random sampling methods. All health centres and one potential health post per weredas were the study unit. After obtaining permission to proceed from all level of relevant bodies, data were collected by trained health workers using pre-tested interviewer administered close ended questionnaires from 534 women who visit 12 health facilities as current MCM users. Data were entered and analysed using SPSS Soft Ware.
Simulation of Deflection Uncertainties on Directional Reconstructions of Muons Using PROPOSAL
Creators: name: Gutjahr, Pascal
name: Alameddine, Jean-Marco
name: Sandrock, Alexander
name: Soedingrekso, Jan
name: Hünnefeld, Mirco
name: Rhode, Wolfgang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Large scale neutrino detectors and muon tomography rely on the muon direction in the detector to infer the muon's or parent neutrino's origin. However, muons accumulate deflections along their propagation path prior to entering the detector, which may need to be accounted for as an additional source of uncertainty. In this paper, the deflection of muons is studied with the simulation tool PROPOSAL, which accounts for multiple scattering and deflection on stochastic interactions. Deflections along individual interactions depend on the muon energy and the interaction type, and can reach up to the order of degrees -- even at TeV to PeV energies. The accumulated deflection angle can be parametrized in dependence of the final muon energy, independent of the initial muon energy. The median accumulated deflection of a propagated muon with a final energy of 500 GeV is $θ_{\text{acc}} = 0.10°$ with a 99 % central interval of $[0.01°, 0.39°]$. This is on the order of magnitude of the directional resolution of present neutrino detectors. Furthermore, comparisons with the simulation tools MUSIC and Geant4 as well as two different muon deflection measurements are performed.
description: 10 pages, 6 figures
Monte Carlo model for electron degradation in methane
Creators: name: Bhardwaj, Anil
name: Mukundan, Vrinda
Publisher: name: arXiv
Year: 2015
Subjects: subject: Space Physics (physics.space-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a Monte Carlo model for degradation of 1-10,000 eV electrons in an atmosphere of methane. The electron impact cross sections for CH4 are compiled and analytical representations of these cross sections are used as input to the model.model.Yield spectra, which provides information about the number of inelastic events that have taken place in each energy bin, is used to calculate the yield (or population) of various inelastic processes. The numerical yield spectra, obtained from the Monte Carlo simulations, is represented analytically, thus generating the Analytical Yield Spectra (AYS). AYS is employed to obtain the mean energy per ion pair and efficiencies of various inelastic processes.Mean energy per ion pair for neutral CH4 is found to be 26 (27.8) eV at 10 (0.1) keV. Efficiency calculation showed that ionization is the dominant process at energies >50 eV, for which more than 50% of the incident electron energy is used. Above 25 eV, dissociation has an efficiency of 27%. Below 10 eV, vibrational excitation dominates. Contribution of emission is around 1.2% at 10 keV. Efficiency of attachment process is 0.1% at 8 eV and efficiency falls down to negligibly small values at energies greater than 15 eV. The efficiencies can be used to calculate volume production rate in planetary atmospheres by folding with electron production rate and integrating over energy
description: 12 figures, 3 tables
A survey, review, and future trends of skin lesion segmentation and classification
Creators: name: Hasan, Md. Kamrul
name: Ahamad, Md. Asif
name: Yap, Choon Hwai
name: Yang, Guang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The Computer-aided Diagnosis or Detection (CAD) approach for skin lesion analysis is an emerging field of research that has the potential to alleviate the burden and cost of skin cancer screening. Researchers have recently indicated increasing interest in developing such CAD systems, with the intention of providing a user-friendly tool to dermatologists to reduce the challenges encountered or associated with manual inspection. This article aims to provide a comprehensive literature survey and review of a total of 594 publications (356 for skin lesion segmentation and 238 for skin lesion classification) published between 2011 and 2022. These articles are analyzed and summarized in a number of different ways to contribute vital information regarding the methods for the development of CAD systems. These ways include relevant and essential definitions and theories, input data (dataset utilization, preprocessing, augmentations, and fixing imbalance problems), method configuration (techniques, architectures, module frameworks, and losses), training tactics (hyperparameter settings), and evaluation criteria. We intend to investigate a variety of performance-enhancing approaches, including ensemble and post-processing. We also discuss these dimensions to reveal their current trends based on utilization frequencies. In addition, we highlight the primary difficulties associated with evaluating skin lesion segmentation and classification systems using minimal datasets, as well as the potential solutions to these difficulties. Findings, recommendations, and trends are disclosed to inform future research on developing an automated and robust CAD system for skin lesion analysis.
description: This manuscript has been accepted to be published in Computers in Biology and Medicine and has a total of 106 pages (single column and double spacing), 13 figures, and 11 tables
Points Systems in Judged Performance Sports: Case Study of the Figure Skating International Judging System
Creators: name: Costley, Patrick
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: This paper treats judged performance sports as a principal-agent contract. I model the factors that influence optimal points systems for judged performance sports such as Figure skating. This model yields two distinct effects. The desirability effect indicates that elements
that are more beneficial for the sporting federation's output of interest should be given more points. The difficulty effect indicates that more difficult skills should be given fewer points. These effects often work in opposite directions; difficult elements are often desirable.
Thus, federations must fully consider both effects to select an optimal system. These results suggest that if a points system is suboptimally focused on desirability, it could be improved by reducing the points allocated to difficult elements. It could also be improved by giving
more points to more desirable elements or conversely increasing the deductions applied to undesirable elements.
Secondly, I analyze figure skating performances before and after a change from a ranking system to an additive points system to determine the effect of the change on performances. This analysis suggests the current figure skating judging system may be suboptimal and could be improved following the prescriptions of my model.
Tensor-Train Thermo-Field Memory Kernels for Generalized Quantum Master Equations
Creators: name: Lyu, Ningyi
name: Mulvihill, Ellen
name: Soley, Micheline B.
name: Geva, Eitan
name: Batista, Victor S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The generalized quantum master equation (GQME) approach provides a rigorous framework for deriving the exact equation of motion for any subset of electronic reduced density matrix elements (e.g., the diagonal elements). In the context of electronic dynamics, the memory kernel and inhomogeneous term of the GQME introduce the implicit coupling to nuclear motion or dynamics of electronic density matrix elements that are projected out (e.g., the off-diagonal elements), allowing for efficient quantum dynamics simulations. Here, we focus on benchmark quantum simulations of electronic dynamics in a spin-boson model system described by various types of GQMEs. Exact memory kernels and inhomogeneous terms are obtained from short-time quantum-mechanically exact tensor-train thermo-field dynamics (TT-TFD) simulations. The TT-TFD memory kernels provide insights on the main sources of inaccuracies of GQME approaches when combined with approximate input methods and pave the road for development of quantum circuits that could implement GQMEs on digital quantum computers.
Constraints on minimally and conformally coupled ultralight dark matter with the EPTA
Creators: name: Smarra, Clemente
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Millisecond pulsars are extremely stable natural timekeepers. Pulsar Timing Array experiments, tracking subtle changes in the pulsars' rotation periods, can shed light on the presence of ultralight particles in our Galaxy. In this conference paper, we start by reviewing the most conservative scenario, in which ultralight particles interact only gravitationally. In this setting, we show that Pulsar Timing Arrays are able to constrain the presence of ultralight fields up to a few tenths of the observed dark matter abundance. Then, we consider conformally coupled ultralight candidates, demonstrating that the constraints on the universal scalar coupling of the field to Standard Model particles improve on existing bounds by several orders of magnitude, in the relevant mass range analyzed by Pulsar Timing Arrays. The discussion presented here is based on [1,2].
description: 9 pages refs. included, 3 figures. Contribution to the proceedings of the 2nd General Meeting of the COST Action COSMICWISPers (CA21106)
Hodge decomposition for stable homology of automorphism groups of free groups
Creators: name: Djament, Aurélien
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We establish a decomposition of stable homology of automorphism groups of free groups with polynomial contravariant coefficients in term of functor homology. This allows several explicit computations, intersecting results obtained by independent methods by O. Randal-Williams and extending some of them.Our methods rely on the investigation of Kan extensions associated to several categories of free groups, the extension of a cancellation criterium for homology with polynomial coefficients due to Scorichenko, Galatius Theorem identifying the stable homology of automorphism groups of free groups to the one of symmetric groups, the machinery of Gamma-spaces and the Snaith splitting.
description: 56 pages, in French
Bending and Stretching in a Narrow Ribbon of Nematic Polymer Networks
Creators: name: Singh, Harmeet
name: Virga, Epifanio G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences
subject: 74 (Primary), 74B20, 74K10, 74K35, 76A15 (Secondary)

description: We study the spontaneous out-of-plane bending of a planar untwisted ribbon composed of nematic polymer networks activated by a change in temperature. Our theory accounts for both stretching and bending energies, which compete to establish equilibrium. We show that when equilibrium is attained these energy components obey a \emph{complementarity} relation: one is maximum where the other is minimum. Moreover, we identify a \emph{bleaching} regime: for sufficiently large values of an activation parameter (which measures the mismatch between the degrees of order in polymer organization in the reference and current configurations), the ribbon's deformation is essentially independent of its thickness.
description: Final published version
More than a Stated Value: Exploring Inclusivity in Mainstream Media
Creators: name: McClellan, Hannah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: As America becomes increasingly racially diverse, mainstream newsrooms remain largely white. For news to adequately cover minority communities, newsrooms must prioritize race-related coverage and hire and empower journalists of color. This thesis aims to explore how newspapers currently attempt to do this, through the collection of oral histories from four journalists who’ve worked on race-related reporting project and content analyses of each corresponding newspaper. Drawing upon research regarding inclusivity practices by Nishikawa et al. and Meyers and Gayle, an oral history interview guide was created to learn about each journalist’s perception of inclusivity within their various workplaces. Prior to each interview, three months of coverage were informally analyzed for themes and key terms at each newspaper. The trends identified in content analysis and observations made in the oral histories were condensed into five recommendations for journalists and newsrooms working to adopt more inclusive writing and reporting practices: “Hire journalists of color and fund diversity initiatives within the newsroom that empower these journalists to speak up about race-related coverage and practices,” “Provide external educational materials and workshops,” “Systemically check blind spots,” “Create opportunities to regularly reflect on positive and negative race-related coverage,” and “Listen to feedback and be willing to be wrong.” With these best practices as a starting point, news organizations can move toward diversity that is more than just a stated value.
Rees valuations
Creators: name: Abhyankar, Shreeram S
name: Heinzer, William J
Publisher: name: arXiv
Year: 2015
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13A02 13B21 13G05 13H99

description: We study dicritical divisors and Rees valuations.
Η παιδική Λογοτεχνία στην Ελλάδα σήμερα. Οι συγγραφείς Μάνος Κοντολέων και Μάκης Τσίτας
Creators: name: Μπρεδήμα, Βασιλική
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2024
Subjects: subject: Κοντολέων , Μάνος , 1946- -- Ερμηνεία και κριτική
subject: Τσίτας , Μάκης , 1971- -- Ερμηνεία και κριτική
subject: Παιδιά -- Βιβλία και ανάγνωση -- Ελλάδα
subject: Παιδική λογοτεχνία, Ελληνική (Σύγχρονη) -- Ιστορία και κριτική
subject: Παιδική λογοτεχνία
subject: Μάνος Κοντολέων
subject: Μάκης Τσίτας
subject: Βιβλίο βραχείας φόρμας
subject: Μυθιστόρημα
subject: Περιπέτεια
subject: Φαντασία
subject: Αλήθεια
subject: Children’s literature
subject: Manos Kontoleon
subject: Makis Tsitas
subject: Short form book
subject: Novel
subject: Adventure
subject: Fantasy
subject: Truth

description: Η παρούσα μεταπτυχιακή διπλωματική εργασία αναφέρεται στην ιστορία και στα χαρακτηριστικά της παιδικής λογοτεχνίας ενώ ερευνώνται ενδεικτικά έργα δύο σημαντικών συγγραφέων, του Μάνου Κοντολέων και του Μάκη Τσίτα, καθώς και η σύνδεσή τους με τη λεγόμενη παιδική λογοτεχνία. Ο Μάνος Κοντολέων σπούδασε Φυσική αλλά ασχολήθηκε με την λογοτεχνία από τα παιδικά του χρόνια και πιστεύει ότι ακόμα κι ένα παραμύθι πρέπει να είναι γραμμένο με τη μέγιστη ποιότητα που ο συγγραφέας μπορεί να του χαρίσει. Τα περισσότερα μυθιστορήματα και διηγήματα που έχει γράψει είναι παιδικά και τα περισσότερα από τα βιβλία του έχουν ως βάση τους βιώματα της παιδικής ηλικίας. Ο Μάκης Τσίτας σπούδασε δημοσιογραφία αλλά ασχολήθηκε με την παιδική λογοτεχνία, καθώς τα περισσότερα βιβλία του αναφέρονται σε παιδιά προσχολικής και πρώτης σχολικής ηλικίας. Θεωρούν και οι δύο συγγραφείς, ότι η παιδική λογοτεχνία πρέπει να είναι υψηλού επιπέδου και την αντιμετωπίζουν με την ίδια σοβαρότητα, με την οποία γράφουν και τη λογοτεχνία ενηλίκων.
title: Small Farmers' Cooperatives in Brazil, 1964-1984 Reasons for Success or Failure
Creators: name: Gerber, Henry H.
Publisher: name: Old Dominion University Libraries
Year: 1985

description: This study is concerned with cooperative business enterprises of small farmers. The topic has been chosen because peasants' association in supply and marketing cooperatives is considered an essential element in rural development. The author's field experience leads him to agree in principle with this assumption. But, as exemplified by Brazil, a variety of factors (ecological, sociohistorical, legal, economic and so forth) may hinder or help the inception and survival of cooperatives.

Thus, if a government aims at integrating the small producer into the national economy as supplier and consumer (as in Brazil), measures to implement t~is policy must not be ad hoc but coherent, consistent, and in consonance with overall agricultural policies. It has been found that, in Brazil, ideal and real policies have not followed the same path.

The author's eight-year involvement with Brazilian producers' cooperatives has resulted in this study with equivocal conclusions which, nonetheless, have wide applicability in most developing countries.
title: Μοριακή ταυτοποίηση βακτηριακών στελεχών Pseudomonas aeruginosa απομονωμένων από δείγματα κολυμβητικών δεξαμενών
title: Molecular identification of Pseudomonas aeruginosa strains isolated from swim tanks samples
titleType: AlternativeTitle
Creators: name: Σιακαμπένης, Δημήτριος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Κολυμβητικές δεξαμενές
Μοριακή ταυτοποίηση
Αντιμικροβιακή αντοχή
Pseudomonas aeruginosa

description: Η κολύμβηση και άλλες δραστηριότητες που λαμβάνουν χώρα σε νερά αναψυχής, όπως οι κολυμβητικές δεξαμενές, προσφέρουν ψυχική και σωματική υγεία. Ωστόσο, υπάρχουν και αρκετοί κίνδυνοι. Οι κολυμβητικές δεξαμενές αποτελούν πηγή ποικίλων παθογόνων μικροοργανισμών και σε ετήσια βάση καταγράφονται αρκετά περιστατικά λοιμώξεων που σχετίζονται με τη χρήση τους. Ένα από τα βακτήρια που εντοπίζεται συχνά σε αυτά τα περιβάλλοντα και ευθύνεται για πλήθος λοιμώξεων είναι η Pseudomonas aeruginosa. Σύμφωνα με τον Παγκόσμιο Οργανισμό Υγεία (ΠΟΥ) η P. aeruginosa προτείνεται ως δείκτης μικροβιολογικής ποιότητας των κολυμβητικών δεξαμενών ενώ κρίνεται σημαντική η μελέτη των μηχανισμών αντοχής της. Επομένως, σκοπός της παρούσας πτυχιακής εργασίας ήταν η μοριακή ταυτοποίηση και ο έλεγχος ευαισθησίας σε αντιβιοτικά των στελεχών P. aeruginosa που ανακτήθηκαν από δείγματα νερού κολυμβητικών δεξαμενών. Δέκα οχτώ ύποπτα στελέχη P. aeruginosa που είχαν απομονωθεί από δείγματα νερού διαφόρων κολυμβητικών δεξαμενών και είχαν φυλαχθεί σε κατάλληλες συνθήκες στο αρχείο βιολογικών δειγμάτων του Εργαστήριου Μοριακής Μικροβιολογίας και Ανοσολογίας του Πανεπιστημίου Δυτικής Αττικής, υποβλήθηκαν α) σε ταυτοποίηση εφαρμόζοντας τη μοριακή μέθοδο της PCR για την ανίχνευση του γονίδιου της 16S ριβοσωμικής υπομονάδας και β) σε έλεγχο μικροβιακής ευαισθησίας σε 11 ευρέως χρησιμοποιούμενα αντιβιοτικά με τη μέθοδο διάχυσης δίσκων αντιβιοτικών σε άγαρ (Kirby Bauer). Τα αποτελέσματα της 16S PCR έδειξαν πως 15 από τα 18 (83%) στελέχη ανήκαν στο γένος Pseudomonas εκ των οποίων 9 (9/15, 60%) ανήκαν στο είδος P. aeruginosa. Τα υπόλοιπα τρία στελέχη αποκλείστηκαν από την μελέτη. Βάσει των επιδημιολογικών ορίων (EUCAST/ECOFF) 11 από τα 15 (73%) στελέχη Pseudomonas spp, συμπεριλαμβανομένων των P. aeruginosa, χαρακτηρίστηκαν ως ανθεκτικά. Από τα 11 ανθεκτικά στελέχη τα 5 (45%) εμφάνισαν συνδυαστική αντοχή σε κεφαλοσπορίνες 3ης γενιάς, μονομπακτάμες και καρβαπενέμες. Συμπερασματικά, η ανίχνευση στελεχών P. aeruginosa στα υπό μελέτη δείγματα νερού κολύμβησης είναι ανησυχητική, καθώς η παρουσία τους αποτελεί ένδειξη επιμόλυνσης των συγκεκριμένων υδάτων. Παράλληλα, η εμφάνιση ανθεκτικών στελεχών P. aeruginosa ακόμα και σε καρβαπενέμες, που είναι τα πιο ισχυρά αντιβιοτικά που διαθέτουμε μέχρι στιγμής, υπογραμμίζει τον κίνδυνο ανάπτυξης ανίατων λοιμώξεων ειδικά για τους χρήστες κολυμβητικών δεξαμενών που ανήκουν σε ευπαθείς ομάδες.
Watermelons on the half-plane
Creators: name: Nurligareev, Khaydar
name: Povolotsky, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the watermelon probabilities in the uniform spanning forests on the two-dimensional semi-infinite square lattice near either open or closed boundary to which the forests can or cannot be rooted, respectively. We derive universal power laws describing the asymptotic decay of these probabilities with the distance between the reference points growing to infinity, as well as their non-universal constant prefactors. The obtained exponents match with the previous predictions made for the related dense polymer models using the Coulomb Gas technique and Conformal Field Theory, as well as with the lattice calculations made by other authors in different settings. We also discuss the logarithmic corrections some authors argued to appear in the watermelon correlation functions on the infinite lattice. We show that the full account for diverging terms of the lattice Green function, which ensures the correct probability normalization, provides the pure power law decay in the case of semi-infinite lattice with closed boundary studied here, as well as in the case of infinite lattice discussed elsewhere. The solution is based on the all-minors generalization of the Kirchhoff matrix tree theorem, the image method and the developed asymptotic expansion of the Kirchhoff determinants.
description: 30 pages, 4 figures, 2 tables
Navigating Modern Indigeneity: Cultural Exchanges between Urban Indian Centers and Tribal Communities in North Carolina
Creators: name: Hite, T. Blake
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: In North Carolina, there are four state recognized urban Indian organizations. These organizations exist to serve American Indian populations that live in urban areas. In Greensboro, the urban Indian population created culture classes as a means of educating their youth about their Native identity and prepare them for the modern world. These classes were prompted after years of discrimination against Native people within schools and the workplace. These classes were successful in creating a home away from home for the Native people living in this area. Due to the work of Greensboro Natives, culture classes have been created in urban areas across the state as well as in tribal communities such as with the Lumbee. Through conducting ethnographic interviews and fieldwork among these urban and tribal communities, I was able to see how these classes have promoted cultural revitalization throughout North Carolina within tribal communities such as the Lumbee Tribe as well other urban communities in North Carolina. These results show how Native people in North Carolina have been able to create a new definition of indigeneity for the modern era.
Minimally dissipative information erasure in a quantum dot via thermodynamic length
Creators: name: Scandi, Matteo
name: Barker, David
name: Lehmann, Sebastian
name: Dick, Kimberly A.
name: Maisi, Ville F.
name: Perarnau-Llobet, Martí
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we explore the use of thermodynamic length to improve the performance of experimental protocols. In particular, we implement Landauer erasure on a driven electron level in a semiconductor quantum dot, and compare the standard protocol in which the energy is increased linearly in time with the one coming from geometric optimisation. The latter is obtained by choosing a suitable metric structure, whose geodesics correspond to optimal finite-time thermodynamic protocols in the slow driving regime. We show experimentally that geodesic drivings minimise dissipation for slow protocols, with a bigger improvement as one approaches perfect erasure. Moreover, the geometric approach also leads to smaller dissipation even when the time of the protocol becomes comparable with the equilibration timescale of the system, i.e., away from the slow driving regime. Our results also illustrate, in a single-electron device, a fundamental principle of thermodynamic geometry: optimal finite-time thermodynamic protocols are those with constant dissipation rate along the process.
Schema di raccolta dati delle coordinate geografiche cui si riferisce il prelievo del campione della base di dati MIC su RaDISAN flusso unico, costruito partendo da COORDPRE_4.0 di EFSA Catalogue Browser 1.2.12
Creators: name: Saiu Rita
Publisher: name: Zenodo
Year: 2023
Subjects: RADISAN

description: È stato utilizzato il prospetto COORDPRE_4.0, pubblicato in EFSA Catalogue browser. La selezione ha escluso le voci: dismissed
description: COORDPRE_4.0_GEO_MIC servirà a geolocalizzare il luogo di prelievo del campione di analisi e l'OSA coinvolta.
Skeleton structure inherent in discrete-time quantum walks
Creators: name: Yamagami, Tomoki
name: Segawa, Etsuo
name: Tanaka, Ken'ichiro
name: Mihana, Takatomo
name: Röhm, André
name: Horisaki, Ryoichi
name: Naruse, Makoto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Emerging Technologies (cs.ET)
subject: Probability (math.PR)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, we claim that a common underlying structure--a skeleton structure--is present behind discrete-time quantum walks (QWs) on a one-dimensional lattice with a homogeneous coin matrix. This skeleton structure is independent of the initial state, and partially, even of the coin matrix. This structure is best interpreted in the context of quantum-walk-replicating random walks (QWRWs), i.e., random walks that replicate the probability distribution of quantum walks, where this newly found structure acts as a simplified formula for the transition probability. Additionally, we construct a random walk whose transition probabilities are defined by the skeleton structure and demonstrate that the resultant properties of the walkers are similar to both the original QWs and QWRWs.
description: 26 pages, 9 figures
Revisiting the anomalous bending elasticity of sharply bent DNA
Creators: name: Cong, Peiwen
name: Dai, Liang
name: Chen, Hu
name: van der Maarel, Johan R. C.
name: Doyle, Patrick S.
name: Yan, Jie
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Several recent experiments suggest that sharply bent DNA has a surprisingly high bending flexibility, but the cause of this flexibility is poorly understood. Although excitation of flexible defects can explain these results, whether such excitation can occur with the level of DNA bending in these experiments remains unclear. Intriguingly, the DNA contained preexisting nicks in most of these experiments but whether nicks might play a role in flexibility has never been considered in the interpretation of experimental results. Here, using full-atom molecular dynamics simulations, we show that nicks promote DNA basepair disruption at the nicked sites, which drastically reduces DNA bending energy. In addition, lower temperatures suppress the nick-dependent basepair disruption. In the absence of nicks, basepair disruption can also occur but requires a higher level of DNA bending. Therefore, basepair disruption inside B-form DNA can be suppressed if the DNA contains preexisting nicks. Overall, our results suggest that the reported mechanical anomaly of sharply bent DNA is likely dependent on preexisting nicks, therefore the intrinsic mechanisms of sharply bent nick-free DNA remain an open question.
description: 39 pages, 11 figures, 1 supporting material
Globalizations for partial (co)actions on coalgebras
Creators: name: Castro, Felipe
name: Quadros, Glauber
Publisher: name: arXiv
Year: 2015
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16T15 (primary), 16T99, 16W22 (secondary)

description: In this paper, we introduce the notion of globalization for partial module coalgebra and for partial comodule coalgebra. We show that every partial module coalgebra is globalizable exhibiting a standard globalization. We also show the existence of globalization for a partial comodule coalgebra, provided a certain rationality condition. Moreover, we show a relationship between the globalization for the (co)module coalgebra and the usual globalization for the (co)module algebra.
description: 31 pages
Are there good probes for the di-neutron correlation in light neutron-rich nuclei?
Creators: name: Hagino, K.
name: Sagawa, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The di-neutron correlation is a spatial correlation with which two valence neutrons are located at a similar position inside a nucleus. We discuss possible experimental probes for the di-neutron correlation. This includes the Coulomb breakup and the pair transfer reactions of neutron-rich nuclei, and the direct two-neutron decays of nuclei beyond the neutron drip-line.
description: 9 pages, 5 figures. A talk given at the international workshop on weakly bound exotic nuclei (WBEN), May 24-30, 2015, Natal, Brazil. To be published in a special issue of Few-Body Systems
AN EMPERICAL INVESTIGATION OF INTER SECTORAL LINKAGE IN ETHIOPIA: A COINTEGRATED VECM APPROACH
Creators: name: Fasikaw Adimassu
Publisher: name: Zenodo
Year: 2018

description: The main objective of this paper was to examine the long run nature and direction of inter sectoral linkages between agriculture, industry and service sectors with a view to identifying the main growth stimulating sector in the economy in the case of Ethiopia. The study used time series data for the period between 1974 and 2016. The researcher estimated an econometric model that incorporates the linkages among the sectors using a Vector Error Correction Model. Johansen’s co-integration test confirms the existence of one long-run relationship among the variables. Vector Error Correction Model (VECM) results indicated a strong long-run relationship between industry and service sector and also between agriculture and service sector. On the other hand, there is only a statistically significant association between industry and service sectors in the short run. Short run Granger causality test result also supports this outcome showing a strong unidirectional causality from industry to service sector. On the other hand, results of variance decomposition analysis and impulse response function suggest that service sector plays an important role in determining the growth of both the agriculture and industry through its positive innovative impact in medium to long-term perspective. The result of this paper suggests that government should be considered this directions and magnitudes of the inter-sectoral linkages before they set a policy and should focus on economic policies that promote multidimensional inter sectoral linkage.
Heat Flux and Wall Shear Stress in Large Aspect-Ratio Turbulent Vertical Convection
Creators: name: Ching, Emily S. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a theoretical analysis of large aspect-ratio turbulent vertical convection that yields two relationships between heat flux and wall shear stress, measured respectively by the Nusselt number ($\text{Nu}$) and shear Reynolds number ($\text{Re}_τ$), in terms of the Rayleigh ($\text{Ra}$) and Prandtl numbers ($\text{Pr}$): $\text{Re}_τ^2 \text{Nu} = f(\text{Pr}) \text{Pr}^{-1} \text{Ra}$ in the high-$\text{Ra}$ limit and $\text{Nu} \approx C \text{Pr}^{\varepsilon} \text{Re}_τ$ with $\varepsilon=1/3$ for $\text{Pr} \gg1$ and $\varepsilon=1$ for $\text{Pr} \ll 1$, where $f(\text{Pr})$ is not a power law of $\text{Pr}$ and $C$ is a constant. These relationships imply $\text{Nu} \approx [C^2f(\text{Pr})]^{1/3} \text{Pr}^{-(1-2\varepsilon)/3} \text{Ra}^{1/3}$ and $\text{Re}_τ\approx[f(\text{Pr})/C]^{1/3}\text{Pr}^{-(1+\varepsilon)/3}\text{Ra}^{1/3}$ for high $\text{Ra}$.
description: 5 figures
Promops davisoni Thomas 1921
Creators: name: Wilson, Don E.
name: Mittermeier, Russell A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Molossidae
Promops
Promops davisoni

description: 23. Davison’s Mastiff Bat Promops davisoni French: Promope de Davison / German: Davison-Bulldogfledermaus / Spanish: Promops de Davison Other common names: Davison’s Free-tailed Bat Taxonomy. Promops davisoni Thomas, 1921, “Chosica, 2700 [= 8323 m],” Lima, Peru. Promops davisoni might be synonymous with P. centralis based on molecular data, but additional research is needed to clarify this. Monotypic. Distribution. W Ecuador, W Peru, and NW Chile. Descriptive notes. Head-body 54-74 mm, tail 49-58 mm, ear 12-18 mm, hindfoot 8-12 mm, forearm 46-52 mm; weight 10-23 g. Dorsal fur of Davison’s Mastiff Bat is ¢. 8 mm long and light to dark brown, with whitish basal bands that cover one-half the length of hairs. Ventral pelage is slightly paler. Ears are short, rounded, and connected on forehead, which has medial ridge to nose. Most cranial measurements of Davison’s Mastiff Bat are slightly smaller than those of the Big Crested Mastiff Bat (P. centralis). Chromosomal complement has 2n = 48 and FN = 58. Habitat. Desert, dry forest, humid forest, and agricultural areas from sea levelto elevations of ¢. 1320 m. Davison’s Mastiff Bats have been caught over a water reservoir. Food and Feeding. In Peru, remains of moths (Lepidoptera) have been found in feces of Davison’s Mastiff Bat. Breeding. A Davison’s Mastiff Bat was pregnant in February in Peru. Activity patterns. Davison’s Mastiff Bats roost in roofs of buildings and rock crevices. Their remains have been found in pellets of common barn-owls (7yto alba). Movements, Home range and Social organization. No information. Status and Conservation. Classified as Data Deficient on The IUCN Red Lust. Bibliography. Eger (2008), Flores et al. (2015), Gregorin & Chiquito (2010), Ossa et al. (2018), Tirira (2017), Velazco, Cadenillas et al. (2013), Warner et al. (1974).
description: Published as part of Don E. Wilson & Russell A. Mittermeier, 2019, Molossidae, pp. 598-672 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions on page 629, DOI: 10.5281/zenodo.6418279
Anisotropic background for two fluids: matter and holographic dark energy
Creators: name: Koussour, M.
name: Bennai, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss a spatially homogeneous and anisotropic Bianchi type-I space-time with two fluids as the content of the Universe: matter and holographic dark energy in the framework of general relativity. To get the exact solutions of Einstein's field equations, we choose the scale factor as a hyperbolic function, specifically, $a\left( t\right) =\sinh ^{\frac{1}{n}}\left( γt\right) $, where $γ$ and $n>0$ are arbitrary constants, which gives us a time-dependent deceleration parameter. Then we study our cosmological model under the conditions of the parameters as: $γ$ fixed and $n>1$. Our cosmological solutions led to an early deceleration phase followed by the current observed acceleration phase. Further, the anisotropic parameter and some other physical parameters are discussed. We conclude that our cosmological model is consistent with the results of recent astronomical observations.
description: JOAA accepted version
Can Core Flows inferred from Geomagnetic Field Models explain the Earth's Dynamo?
Creators: name: Schaeffer, Nathanaël
name: Silva, Estelina Lora
name: Pais, Maria Alexandra
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We test the ability of large scale velocity fields inferred from geomagnetic secular variation data to produce the global magnetic field of the Earth.Our kinematic dynamo calculations use quasi-geostrophic (QG) flows inverted from geomagnetic field models which, as such, incorporate flow structures that are Earth-like and may be important for the geodynamo.Furthermore, the QG hypothesis allows straightforward prolongation of the flow from the core surface to the bulk.As expected from previous studies, we check that a simple quasi-geostrophic flow is not able to sustain the magnetic field against ohmic decay.Additional complexity is then introduced in the flow, inspired by the action of the Lorentz force.Indeed, on centenial time-scales, the Lorentz force can balance the Coriolis force and strict quasi-geostrophy may not be the best ansatz.When the columnar flow is modified to account for the action of the Lorentz force, magnetic field is generated for Elsasser numbers larger than 0.25 and magnetic Reynolds numbers larger than 100.This suggests that our large scale flow captures the relevant features for the generation of the Earth's magnetic field and that the invisible small scale flow may not be directly involved in this process.Near the threshold, the resulting magnetic field is dominated by an axial dipole, with some reversed flux patches.Time-dependence is also considered, derived from principal component analysis applied to the inverted flows.We find that time periods from 120 to 50 years do not affect the mean growth rate of the kinematic dynamos.Finally we notice the footprint of the inner-core in the magnetic field generated deep in the bulk of the shell, although we did not include one in our computations.
Properties of the one-dimensional Bose-Hubbard model from a high-order perturbative expansion
Creators: name: Damski, Bogdan
name: Zakrzewski, Jakub
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We employ a high-order perturbative expansion to characterize the ground state of the Mott phase of the one-dimensional Bose-Hubbard model. We compute for different integer filling factors the energy per lattice site, the two-point and density-density correlations, and expectation values of powers of the on-site number operator determining the local atom number fluctuations (variance, skewness, kurtosis). We compare these expansions to numerical simulations of the infinite-size system to determine their range of applicability. We also discuss a new sum rule for the density-density correlations that can be used in both equilibrium and non-equilibrium systems.
description: 16 pages, published version
The General Relativity in the Radius of Particles.
Creators: name: Giampaolo, Piscedda
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 510703
subject: Particle physics
classificationCode: 510105
subject: General relativity and gravitational waves

description: The fundamental hypothesis from which I realized this theory concerns the curvature of space-time where mass is present. It can be said that I have been asked: can the mass be curved?