cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Topological singular set of vector-valued maps, II: $Γ$-convergence for Ginzburg-Landau type functionals
Creators: name: Canevari, Giacomo
name: Orlandi, Giandomenico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58C06, 49Q15, 49Q20, 58E15

description: We prove a $Γ$-convergence result for a class of Ginzburg-Landau type functionals with $\mathcal{N}$-well potentials, where $\mathcal{N}$ is a closed and $(k-2)$-connected submanifold of $\mathbb{R}^m$, in arbitrary dimension. This class includes, for instance, the Landau-de Gennes free energy for nematic liquid crystals. The energy density of minimisers, subject to Dirichlet boundary conditions, converges to a generalised surface (more precisely, a flat chain with coefficients in $π_{k-1}(\mathcal{N})$) which solves the Plateau problem in codimension $k$. The analysis relies crucially on the set of topological singularities, that is, the operator $\mathbf{S}$ we introduced in the companion paper arXiv:1712.10203.
description: 65 pages, 7 figures. In this new version, a mistake in the proof of Proposition 3.1 has been fixed
Solution of the Dirac equation in lattice QCD using a domain decomposition method
Creators: name: Lüscher, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Efficient algorithms for the solution of partial differential equations on parallel computers are often based on domain decomposition methods. Schwarz preconditioners combined with standard Krylov space solvers are widely used in this context, and such a combination is shown here to perform very well in the case of the Wilson--Dirac equation in lattice QCD. In particular, with respect to even-odd preconditioned solvers, the communication overhead is significantly reduced, which allows the computational work to be distributed over a large number of processors with only small parallelization losses.
description: Plain TeX source, 21 pages, figures included
Representative bureaucracy: Gay community efforts to change the definition of family
Creators: name: Moen, Kevin Stanley
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4407
subject: Policy and administration
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: In the last few decades, homosexuals have "come out" and formed families of their own which differ from "traditional" families. The American bureaucracy has played an integral part in the development of a gay identity in gay people's search for family. With their discretionary powers, bureaucratic agencies have contributed to the ways in which homosexuals have defined themselves, and have been a significant factor in determining the manner in which gay people have organized politically. Representative bureaucracy is a term which simultaneously suggests that while bureaucracy has not always matched democratic ideals, it can, nevertheless, be restructured to fit with those ideals. Through the choice of personnel, organization, accountability controls, and creation of systematic opportunities for public input, Krislov and Rosenbloom have suggested that representative bureaucracy is possible, and desirable.1. Aided by representative bureaucratic tools, the gay community has attempted to influence public policy. In particular, the gay community actively attempted to change the definition of "family" in a federal regulation. In addition to spouse, children, and parents, the proposed rule provided for "any individual related by blood or affinity whose relation to the employee is the equivalent of a family relationship" to qualify as a family member. The material effect was to allow gay federal employees to use sick leave to care for seriously ill life-partners and their children. The question this research sought to answer was whether the Krislov-Rosenbloom model of representative bureaucracy could explain the decision-making process within the federal bureaucracy as it related to the redefinition of "family" in a federal regulation. While Congress ultimately decided the definition of "family" by legislation, this case study illuminated, by analyzing documents and conducting interviews, how the gay community was able to access the bureaucratic decision-making apparatus and attempt to influence it in a way that was impossible a quarter century ago. 1Krislov, Samuel, and David H. Rosenbloom. Representative Bureaucracy and the American Political System. Praeger Publishers, Westport, CT. 1981.
A Rate-Distortion Perspective on Quantum State Redistribution
Creators: name: Khanian, Zahra Baghali
name: Winter, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a rate-distortion version of the quantum state redistribution task, where the error of the decoded state is judged via an additive distortion measure; it thus constitutes a quantum generalisation of the classical Wyner-Ziv problem. The quantum source is described by a tripartite pure state shared between Alice ($A$, encoder), Bob ($B$, decoder) and a reference ($R$). Both Alice and Bob are required to output a system ($\widetilde{A}$ and $\widetilde{B}$, respectively), and the distortion measure is encoded in an observable on $\widetilde{A}\widetilde{B}R$.
 It includes as special cases most quantum rate-distortion problems considered in the past, and in particular quantum data compression with the fidelity measured per copy; furthermore, it generalises the well-known state merging and quantum state redistribution tasks for a pure state source, with per-copy fidelity, and a variant recently considered by us, where the source is an ensemble of pure states [ZBK & AW, Proc. ISIT 2020, pp. 1858-1863 and ZBK, PhD thesis, UAB 2020, arXiv:2012.14143].
 We derive a single-letter formula for the rate-distortion function of compression schemes assisted by free entanglement. A peculiarity of the formula is that in general it requires optimisation over an unbounded auxiliary register, so the rate-distortion function is not readily computable from our result, and there is a continuity issue at zero distortion. However, we show how to overcome these difficulties in certain situations.
description: 11 pages, IEEE two-column format, final accepted version (IEEE Trans. Inf. Theory)
Analyzing, Exploring, and Visualizing Complex Networks via Hypergraphs using SimpleHypergraphs.jl
Creators: name: Antelmi, Alessia
name: Cordasco, Gennaro
name: Kamiński, Bogumił
name: Prałat, Paweł
name: Scarano, Vittorio
name: Spagnuolo, Carmine
name: Szufel, Przemyslaw
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: G.2.2; G.4

description: Real-world complex networks are usually being modeled as graphs. The concept of graphs assumes that the relations within the network are binary (for instance, between pairs of nodes); however, this is not always true for many real-life scenarios, such as peer-to-peer communication schemes, paper co-authorship, or social network interactions. For such scenarios, it is often the case that the underlying network is better and more naturally modeled by hypergraphs. A hypergraph is a generalization of a graph in which a single (hyper)edge can connect any number of vertices. Hypergraphs allow modelers to have a complete representation of multi-relational (many-to-many) networks; hence, they are extremely suitable for analyzing and discovering more subtle dependencies in such data structures. Working with hypergraphs requires new software libraries that make it possible to perform operations on them, from basic algorithms (such as searching or traversing the network) to computing significant hypergraph measures, to including more challenging algorithms (such as community detection). In this paper, we present a new software library, SimpleHypergraphs.jl, written in the Julia language and designed for high-performance computing on hypergraphs and propose two new algorithms for analyzing their properties: s-betweenness and modified label propagation. We also present various approaches for hypergraph visualization integrated into our tool. In order to demonstrate how to exploit the library in practice, we discuss two case studies based on the 2019 Yelp Challenge dataset and the collaboration network built upon the Game of Thrones TV series. The results are promising and they confirm the ability of hypergraphs to provide more insight than standard graph-based approaches.
description: 32 pages, 10 figures, 7 tables, submitted to Internet Mathematics Journal
Additional file 5 of Discovery of a novel integron-borne aminoglycoside resistance gene present in clinical pathogens by screening environmental bacterial communities
Creators: name: Maria-Elisabeth Böhm
name: Razavi, Mohammad
name: Nachiket P. Marathe
name: Carl-Fredrik Flach
name: D. G. Joakim Larsson
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 5. Detailed material and methods.
Adaptive Optics Imaging and Spectroscopy of Cygnus A: I. Evidence for a Minor Merger
Creators: name: Canalizo, Gabriela
name: Max, Claire
name: Whysong, David
name: Antonucci, Robert
name: Dahm, Scott E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Keck II adaptive optics near infrared imaging and spectroscopic observations of the central regions of the powerful radio galaxy Cygnus A. The 0.05" resolution images clearly show an unresolved nucleus between two spectacular ionization/scattering cones. We report the discovery of a relatively bright (K'~19) secondary point source 0.4" or 400 pc in projection southwest of the radio nucleus. The object is also visible in archival Hubble Space Telescope optical images, although it is easily confused with the underlying structure of the host. Although the near infrared colors of this secondary point source are roughly consistent with those of an L-dwarf, its spectrum and optical-to-infrared spectral energy distribution (SED) virtually rule out the possibility that it may be any foreground projected object. We conclude that the secondary point source is likely to be an extragalactic object associated with Cygnus A. We consider several interpretations of the nature of this object, including: a young star cluster peering through the dust at the edge of one of the ionization cones; an older, large globular cluster; a compact cloud of dust or electrons that is acting as a mirror of the hidden active nucleus; and the dense core of a gas stripped satellite galaxy that is merging with the giant elliptical host. The data presented here are most consistent with the minor merger scenario. The spectra and SED of the object suggest that it may be a densely packed conglomeration of older stars heavily extincted by dust, and its high luminosity and compact nature are consistent with those of a satellite that has been stripped to its tidal radius. Further spectroscopic observations are nevertheless necessary to confirm this possibility.
description: To appear in November 10 issue of ApJ. 22 pages, 5 figures (2 color)
Additional file 11 of Phylogenetic relationship between Australian Fusarium oxysporum isolates and resolving the species complex using the multispecies coalescent model
Creators: name: Saidi R. Achari
name: Kaur, Jatinder
name: Dinh, Quang
name: Mann, Ross
name: Sawbridge, Tim
name: Summerell, Brett A.
name: Edwards, Jacqueline
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 11: Supplementary Figure 8. Maximum likelihood tree generated from the combined dataset of Laurence et al. [30] (14 isolates) and isolates from the current study using MEGA X with 1000 bootstrap replications. The analysis was based on concatenated partial gene sequences of mtSSU, RPB1, RPB2, cal, tef1-α, nir, PHO, and acl1. The tree was rooted to Fusarium proliferatum (ITEM2400). Isolates from the current study have the prefixes RBG and VPRI before the numbers while isolates with prefix AUST belong to Laurence et al. [30]. The isolates belonging to Clade 1 (phylogenetic species 1) are highlighted in orange and this is concordant with Clade 1 and species 1 in the current study.
Representative bureaucracy: Gay community efforts to change the definition of family
Creators: name: Moen, Kevin Stanley
Publisher: name: American University
Year: 2023

description: In the last few decades, homosexuals have "come out" and formed families of their own which differ from "traditional" families. The American bureaucracy has played an integral part in the development of a gay identity in gay people's search for family. With their discretionary powers, bureaucratic agencies have contributed to the ways in which homosexuals have defined themselves, and have been a significant factor in determining the manner in which gay people have organized politically. Representative bureaucracy is a term which simultaneously suggests that while bureaucracy has not always matched democratic ideals, it can, nevertheless, be restructured to fit with those ideals. Through the choice of personnel, organization, accountability controls, and creation of systematic opportunities for public input, Krislov and Rosenbloom have suggested that representative bureaucracy is possible, and desirable.1. Aided by representative bureaucratic tools, the gay community has attempted to influence public policy. In particular, the gay community actively attempted to change the definition of "family" in a federal regulation. In addition to spouse, children, and parents, the proposed rule provided for "any individual related by blood or affinity whose relation to the employee is the equivalent of a family relationship" to qualify as a family member. The material effect was to allow gay federal employees to use sick leave to care for seriously ill life-partners and their children. The question this research sought to answer was whether the Krislov-Rosenbloom model of representative bureaucracy could explain the decision-making process within the federal bureaucracy as it related to the redefinition of "family" in a federal regulation. While Congress ultimately decided the definition of "family" by legislation, this case study illuminated, by analyzing documents and conducting interviews, how the gay community was able to access the bureaucratic decision-making apparatus and attempt to influence it in a way that was impossible a quarter century ago. 1Krislov, Samuel, and David H. Rosenbloom. Representative Bureaucracy and the American Political System. Praeger Publishers, Westport, CT. 1981.
Additional file 1 of Physical activity and exercise for older people living with HIV: a protocol for a scoping review
Creators: name: Chetty, Levin
name: Cobbing, Saul
name: Verusia Chetty
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Sociology
subject: FOS: Sociology

description: Additional file 1. PRISMA 2009 Checklist.
Gorbatsjovs siste reform
Creators: name: Petrov, Alexander
Publisher: name: figshare
Year: 2021
Subjects: subject: History
subject: 160603 Comparative Government and Politics
subject: FOS: Political science
subject: Economics
subject: 140203 Economic History
subject: FOS: Economics and business
subject: 140210 International Economics and International Finance

description: NNF-Nytt Norsk Numismatisk Tidsskrift no. 1 - 2012. Av samlere for samlere, Oslo. Norsk Numismatisk Tidsskrift (NNT) er foreningens medlemsblad (Norsk Numismatisk Forening)
Using world mythology and folktales in reading instruction for community college international students
Creators: name: Payne, Betty H.
Publisher: name: American University
Year: 2023

description: Community colleges enroll an increasing number of international students who need instruction in the English language. The problems involved in teaching this diverse group of students include addressing the different ages, educational backgrounds and levels of language mastery. It is difficult for the ESL educator to accommodate these differences and hold students' interest when teaching with a traditional ESL textbook. This study utilized world mythology and folktales as the reading material in the community college ESL reading program. Mythology, containing universal themes from international sources, was selected to reflect the diversity of students. The methodology was action research, based on the researcher's experiences and a survey to obtain peer review. The research questions were to determine if there was a base in the literature to support using world mythology and folktales in teaching; to determine what resources were available and appropriate; and to ascertain what classification would help ESL educators. A survey was conducted among ESL educators to obtain their views of the curriculum recommendations. It was found that there is a base in the literature to support using world mythology and folktales in reading instruction. References included works by Jung, Campbell, Bruner, Hirsch and Ravitch. Resources were classified by the Fry readability formula and country of origin of the stories. Curriculum guidelines were prepared for ESL educators. Respondents to the survey reported that the curriculum guidelines should be added to an ESL reading program. Recommendations included application of the concept to community college developmental readers and development of a curriculum using legends and folktales of the United States to bring United States history into the ESL reading program.
Should the Samuelson Rule Be Modified to Account for the Marginal Cost of Public Funds?
Creators: name: Usher, Dan
name: Usher, Dan
Publisher: name: Unknown
Year: 2006
Subjects: Financial Economics
Public Economics

description: Disputes over the marginal cost of public funds may be about its magnitude in any given time and place or about its role in cost-benefit analysis. This paper is about the latter. The Samuelson rule was devised for an omnipotent, omniscient and benevolent government. This paper is about how the Samuelson rule should be modified to take account of the impact upon total deadweight loss in the tax system from the required an increase in the tax rate to finance public projects as well as from the appearance of the projects themselves. A very simple device is employed to analyze these questions.
Using world mythology and folktales in reading instruction for community college international students
Creators: name: Payne, Betty H.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3903
subject: Education systems

description: Community colleges enroll an increasing number of international students who need instruction in the English language. The problems involved in teaching this diverse group of students include addressing the different ages, educational backgrounds and levels of language mastery. It is difficult for the ESL educator to accommodate these differences and hold students' interest when teaching with a traditional ESL textbook. This study utilized world mythology and folktales as the reading material in the community college ESL reading program. Mythology, containing universal themes from international sources, was selected to reflect the diversity of students. The methodology was action research, based on the researcher's experiences and a survey to obtain peer review. The research questions were to determine if there was a base in the literature to support using world mythology and folktales in teaching; to determine what resources were available and appropriate; and to ascertain what classification would help ESL educators. A survey was conducted among ESL educators to obtain their views of the curriculum recommendations. It was found that there is a base in the literature to support using world mythology and folktales in reading instruction. References included works by Jung, Campbell, Bruner, Hirsch and Ravitch. Resources were classified by the Fry readability formula and country of origin of the stories. Curriculum guidelines were prepared for ESL educators. Respondents to the survey reported that the curriculum guidelines should be added to an ESL reading program. Recommendations included application of the concept to community college developmental readers and development of a curriculum using legends and folktales of the United States to bring United States history into the ESL reading program.
D-branes and extended characters in SL(2,R)/U(1)
Creators: name: Fotopoulos, Angelos
name: Niarchos, Vasilis
name: Prezas, Nikolaos
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a detailed study of D-branes in the axially gauged SL(2,R)/U(1) coset conformal field theory for integer level k. Our analysis is based on the modular bootstrap approach and utilizes the extended SL(2,R)/U(1) characters and the embedding of the parafermionic coset algebra in the N=2 superconformal algebra. We propose three basic classes of boundary states corresponding to D0-, D1- and D2-branes. We verify that these boundary states satisfy the Cardy consistency conditions and discuss their physical properties. The D0- and D1-branes agree with those found in earlier work by Ribault and Schomerus using different methods (descent from the Euclidean AdS3 model). The D2-branes are new. They are not, in general, space-filling but extend from the asymptotic circle at infinity up to a circular boundary at some distance from the tip of the cigar.
description: 61 pages, 1 figure, 1 table; v2 typos corrected, added a subsection with comments on B-type class 3 boundary states; v3 more typos corrected, version to appear in NPB
An Agent-based Architecture for AI-Enhanced Automated Testing for XR Systems
Creators: name: Prasetya, I. S. W. B.
name: Shirzadehhajimahmood, Samira
name: Ansari, Saba Gholizadeh
name: Fernandes, Pedro
name: Prada, Rui
Publisher: name: Zenodo
Year: 2021
Subjects: AI for automated testing
automated testing XR systems
agent based testing
AI for testing games

description: This short paper presents an architectural overview of an agent-based framework called iv4XR for automated testing that is currently under development by an H2020 project with the same name. The framework's intended main use case of is testing the family of Extended Reality (XR) based systems (e.g. 3D games, VR sytems, AR systems), though the approach can indeed be adapted to target other types of interactive systems. The framework is unique in that it is an agent-based system. Agents are inherently reactive, and therefore are arguably a natural match to deal with interactive systems. Moreover, it is also a natural vessel for mounting and combining different AI capabilities, e.g. reasoning, navigation, and learning.
Theory of spin precession monitored by laser pulse
Creators: name: Combescot, M.
name: Betbeder-Matibet, O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We first predict the splitting of a spin degenerate impurity level when this impurity is irradiated by a circularly polarized laser beam tuned in the transparency region of a semiconductor. This splitting, which comes from different exchange processes between the impurity electron and the virtual pairs coupled to the pump beam, induces a spin precession around the laser beam axis, which lasts as long as the pump pulse. It can thus be used for ultrafast spin manipulation. This effect, which has similarities with the exciton optical Stark effect we studied long ago, is here derived using the concepts we developed very recently to treat many-body interactions between composite excitons and which make the physics of this type of effects quite transparent. They, in particular, allow to easily extend this work to other experimental situations in which a spin rotates under laser irradiation.
description: 12 pages + 1 figure
The Halo Void (Dust) Model of Large Scale Structure
Creators: name: Voivodic, Rodrigo
name: Rubira, Henrique
name: Lima, Marcos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the Halo Model of large scale structure, all matter is contained in dark matter halos. This simple yet powerful framework has been broadly applied to multiple data sets and enriched our comprehension of how matter is distributed in the Universe. In this work we extend this assumption by allowing for matter to rest not only inside halos but also within cosmic voids and in between halos and voids (which we call 'dust'). This assumption leads to additional contributions (1Void, 2Void, Halo-Void, etc.) to the predictions of correlation functions, spectra and profiles for both halos and voids. Whereas the Halo Model can only make predictions for halo quantities, the Halo Void Model extends those for void statistics and halo-void cross-correlations. We provide recipes for all new ingredients of the Halo Void (Dust) Model, such as the void abundance, linear bias and density profile and test their validity in a N-body simulation. Including voids and dust into the calculations improves the transition between the 1Halo and the 2Halo terms by up to $\sim 6\%$. It also eliminates the need to include low-mass structures on the normalization of large-scale terms, suggesting that halos and voids are complementary cosmic structures to effectively describe matter distribution on large scales of the Universe.
description: 40 pages, 12 figures. Comments are welcome. v2: Published in JCAP
Tool Demonstration: iv4XR Agent-based Testing Framework
Creators: name: Prasetya, I. S. W. B.
name: Shirzadehhajimahmood, Samira
name: Ansari, Saba Gholizadeh
Publisher: name: Zenodo
Year: 2021
Subjects: AI for automated testing
automated testing XR systems
agent based testing
AI for testing games

description: The iv4XR Framework is an open source agent-based Java framework for automated testing. Currently the main use case is for testing computer games. The main novelty of iv4XR is in its choice for an agent-based approach. Agents are inherently reactive programs, and hence a good match to test highly interactive systems such as computer games. Iv4XR uses BDI based agency, which allows an agent to have belief and desire. Desires are formulated as goals, e.g. to test a certain state in the SUT. Goal solvers can be composed from reasoning rules and rule combinators, and complex goals can be formulated through goal combinators. This approach combines a proactive dimension, that together with the reactive nature of agents provides more versatility and strength for automated testing.
The Opportunity Cost of Electricity Outages and Privatization of Substations in Nepal
Creators: name: Jyoti, Roop
name: Ozbafli, Aygul
name: Jenkins, Glenn
name: Jyoti, Roop
name: Ozbafli, Aygul
name: Jenkins, Glenn
Publisher: name: Unknown
Year: 2006
Subjects: subject: Financial Economics
subject: International Development
subject: electricity supply
subject: reliability
subject: opportunity costs
subject: privatization

description: The unreliability of electricity supplies is a major cause of the high cost of manufacturing in developing countries. In this paper we are able to measure the cost imposed by power outages and suggest some feasible mitigating measures. The study employs a rich, if not unique, set of data from three large manufacturing enterprises in Nepal. Using it the opportunity costs to the enterprises from lost production from electricity outages can be estimated accurately. Power outages due to substation failure can be separated from other electricity systems failures. An analysis is carried out on the feasibility of privatized electricity substations. We find that this is a very worthwhile capital investment for the private sector to undertake, even when additional generation capacity to improve overall electricity reliability is not justified.
Comment on "Propagator of two coupled general driven time-dependent oscillators" by C. F. Lo and Y. J.Wong
Creators: name: Benamira, F.
name: Guechi, L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We comment on several incorrect results given in a recent paper by Lo and Wong. In particular, it is pointed out that their evaluation of the propagator for two coupled general driven time-dependent oscillators is not satisfactory. The correct expression can be obtained by applying an appropriate time-dependent canonical transformation.
description: 2 pages, no figures
Weighted Ehrhart series and a type-$\mathsf{B}$ analogue of a formula of MacMahon
Creators: name: Tielker, Elena
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 52B11

description: We present a formula for a generalisation of the Eulerian polynomial, namely the generating polynomial of the joint distribution of major index and descent statistic over the set of signed multiset permutations. It has a description in terms of the $h^*$-polynomial of a certain polytope. Moreover, we associate a family of polytopes to (generalised) Eulerian polynomials of types $\mathsf{A}$ and $\mathsf{B}$. Using this connection, properties of the generalised Eulerian numbers of types $\mathsf{A}$ and $\mathsf{B}$, such as palindromicity and unimodality, are reflected in certain properties of the associated polytope. We also present results on generalising the connection between descent polynomials and polytopes to coloured (multiset) permutations.
description: An extended abstract of this paper has been accepted in FPSAC 2022
The effect of a meridional flow on Parker's interface dynamo
Creators: name: Petrovay, K.
name: Kerekes, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Parker's interface dynamo is generalized to the case when a homogeneous flow is present in the high-diffusivity (upper) layer in the lateral direction (i.e. perpendicular to the shear flow in the lower layer). This is probably a realistic first representation of the situation near the bottom of the solar convective zone, as the strongly subadiabatic stratification of the tachocline (lower layer in the interface dynamo) imposes a strong upper limit on the speed of any meridional flow there. Analytic solutions to the eigenvalue problem are presented for the cases of vanishing diffusivity contrast and infinite diffusivity contrast, respectively. Unlike the trivial case of a homogeneous system, the ability of the meridional flow to reverse the propagation of the dynamo wave is strongly reduced in the interface dynamo. In particular, in the limit of high diffusivity contrast relevant to the solar case it is found that a meridional flow of realistic amplitude cannot reverse the direction of propagation of the dynamo wave. The implications of this result for the solar dynamo problem are discussed.
description: 5 pages, 3 figures; MNRAS, in press
The interaction of cocaine and alcohol on schedule-controlled responding
Creators: name: Sobel, Bai-Fang Xiao
Publisher: name: American University
Year: 2023

description: The co-administration of cocaine and alcohol yielded greater rate-suppressing effects on schedule-controlled responding than either drug alone and than the sum of the individual effects of cocaine and alcohol (Experiment 1), suggesting a synergistic interaction between the two drugs. Although the basis for this synergism is not known, it is possible that it is mediated by cocaethylene, a cocaine metabolite produced in the presence of alcohol. Specifically, the effects of cocaethylene, which are reported in other preparations to be similar to those of cocaine, may be summating with the effects of cocaine and/or alcohol to produce the enhanced effects. To test this possibility, cocaethylene was combined with cocaine and alcohol and their effects on schedule-controlled responding were assessed (Experiment 2). Cocaethylene alone suppressed responding in a dose-related manner. Further, the combinations of cocaethylene and cocaine and of cocaethylene and alcohol at doses which alone had little or no effect resulted in suppression of licking and the effects of these combinations were greater than the sum of the individual drug effects, indicating apparent synergistic interactions between these two combinations. Given these results, a more parsimonious interpretation for the enhanced effects of the cocaine/alcohol combination (as well as those of the cocaine/cocaethylene and alcohol/cocaethylene combinations) is that of dose additivity of the respective drugs. If so, the combinations of different doses of the same drug should produce similar effects as the combinations of different drugs. To assess this, various doses of cocaine, of alcohol and of cocaethylene were combined and their effects were examined (Experiment 3). The same drug combinations produced similar increased suppression in operant responding and similar shifts in the dose-response functions as the combinations of different drugs, indicating that dose additivity may underlie the enhanced effects of the various drug combinations. This conclusion is further supported by an isobolographic analysis, a direct method of assessing dose additivity. Taken together, these results suggest that the interaction of cocaine and alcohol on schedule-controlled responding is a function of dose additivity. Such a conclusion may have implications for the co-use of cocaine and alcohol.
Partial Wave Analyses of $J/ψ\toγK^+K^-$ and $γK^0_SK^0_S$
Creators: name: al, J. Z. Bai et
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Results are presented on $J/ψ$ radiative decays to $K^+K^-$ and $K^0_SK^0_S$ based on a sample of 58M $J/ψ$ events taken with the BES II detector. A partial wave analysis is carried out using the relativistic covariant tensor amplitude method in the 1-2 GeV mass range. There is conspicuous production due to the $f'_2(1525)$ and $f_0(1710)$. The latter peaks at a mass of $1740\pm 4^{+10}_{-25}$ MeV with a width of $166{^{+5}_{-8}}{^{+15}_{-10}}$ MeV. Spin 0 is strongly preferred over spin 2. For the $f'_2(1525)$, the helicity amplitude ratios are determined to be $x^2 = 1.00\pm0.28^{+1.06}_{-0.36}$ and $y^2 = 0.44\pm{0.08}^{+0.10}_{-0.56}$.
description: 16 pages, 5 figures
Towards a Distributed Quantum Computing Ecosystem
Creators: name: Cuomo, Daniele
name: Caleffi, Marcello
name: Cacciapuoti, Angela Sara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The Quantum Internet, by enabling quantum communications among remote quantum nodes, is a network capable of supporting functionalities with no direct counterpart in the classical world. Indeed, with the network and communications functionalities provided by the Quantum Internet, remote quantum devices can communicate and cooperate for solving challenging computational tasks by adopting a distributed computing approach. The aim of this paper is to provide the reader with an overview about the main challenges and open problems arising with the design of a Distributed Quantum Computing ecosystem. For this, we provide a survey, following a bottom-up approach, from a communications engineering perspective. We start by introducing the Quantum Internet as the fundamental underlying infrastructure of the Distributed Quantum Computing ecosystem. Then we go further, by elaborating on a high-level system abstraction of the Distributed Quantum Computing ecosystem. Such an abstraction is described through a set of logical layers. Thereby, we clarify dependencies among the aforementioned layers and, at the same time, a road-map emerges.
Compactness and index of ordinary central configurations for the curved n-body problem
Creators: name: Zhu, Shuqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 70F10, 70F15

description: For the curved n-body problem, we show that the set of ordinary central configurations is away from most singular configurations in H^3, and away from a subset of singular configurations in S^3. We also show that each of the n!/2 geodesic ordinary central configurations for n masses has Morse index n-2. Then we get a direct corollary that there are at least (3n-4)(n-1)!/2 ordinary central configurations for given n masses if all ordinary central configurations of these masses are non-degenerate.
description: 30 pages, 1 figure
Additional file 10 of Phylogenetic relationship between Australian Fusarium oxysporum isolates and resolving the species complex using the multispecies coalescent model
Creators: name: Saidi R. Achari
name: Kaur, Jatinder
name: Dinh, Quang
name: Mann, Ross
name: Sawbridge, Tim
name: Summerell, Brett A.
name: Edwards, Jacqueline
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 10: Supplementary Figure 7. Maximum likelihood tree generated from the combined dataset of Lombard et al. [19] (52 isolates) and isolates from the current study using MEGA X with 1000 bootstrap replications. The analysis was based on concatenated partial gene sequences of cal, RPB2, tef1-α and tub2. Isolates representing the neotype of F. oxysporum are labelled and highlighted in red. Isolates from the current study have the prefixes RBG and VPRI before the numbers. Isolates included from Lombard et al. [19] dataset have prefixes NRRL and CBS before the numbers. The tree was rooted to Fusarium udum (CBS177.31) and Fusarium foetens (CBS120665).
The interaction of cocaine and alcohol on schedule-controlled responding
Creators: name: Sobel, Bai-Fang Xiao
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: The co-administration of cocaine and alcohol yielded greater rate-suppressing effects on schedule-controlled responding than either drug alone and than the sum of the individual effects of cocaine and alcohol (Experiment 1), suggesting a synergistic interaction between the two drugs. Although the basis for this synergism is not known, it is possible that it is mediated by cocaethylene, a cocaine metabolite produced in the presence of alcohol. Specifically, the effects of cocaethylene, which are reported in other preparations to be similar to those of cocaine, may be summating with the effects of cocaine and/or alcohol to produce the enhanced effects. To test this possibility, cocaethylene was combined with cocaine and alcohol and their effects on schedule-controlled responding were assessed (Experiment 2). Cocaethylene alone suppressed responding in a dose-related manner. Further, the combinations of cocaethylene and cocaine and of cocaethylene and alcohol at doses which alone had little or no effect resulted in suppression of licking and the effects of these combinations were greater than the sum of the individual drug effects, indicating apparent synergistic interactions between these two combinations. Given these results, a more parsimonious interpretation for the enhanced effects of the cocaine/alcohol combination (as well as those of the cocaine/cocaethylene and alcohol/cocaethylene combinations) is that of dose additivity of the respective drugs. If so, the combinations of different doses of the same drug should produce similar effects as the combinations of different drugs. To assess this, various doses of cocaine, of alcohol and of cocaethylene were combined and their effects were examined (Experiment 3). The same drug combinations produced similar increased suppression in operant responding and similar shifts in the dose-response functions as the combinations of different drugs, indicating that dose additivity may underlie the enhanced effects of the various drug combinations. This conclusion is further supported by an isobolographic analysis, a direct method of assessing dose additivity. Taken together, these results suggest that the interaction of cocaine and alcohol on schedule-controlled responding is a function of dose additivity. Such a conclusion may have implications for the co-use of cocaine and alcohol.
HPLC as a method for purifying and identifying PNAs
Creators: name: Wei, Yingning
Publisher: name: American University
Year: 2023

description: Peptide nucleic acids, PNAs are now widely used in DNA typing. This typing method represents a powerful alternative and improvement to all traditional DNA typing methods. During the PNA synthesis procedure, byproducts are produced which will interfere with the typing. HPLC is a separation technique used to purify PNAs. In addition to purification, information about retention time and its relationship to sequence and the size of the PNA was also obtained. This study has used allele specific PNA probes with HPLC detection for DNA typing. We have applied this method to HLA-DQalpha genotyping for detection of DQalpha1, DQalpha2, DQalpha3 and DQalpha4, the four major alleles. During the process of the assay, PNAs were used in the water solution. In this case, they always formed a dimer. The size of the dimer was about 25mer to 34mer, which was too big to be separated by the HPLC. The appearance of the dimer was confirmed by the MALDI-TOF MS. It was also found that PNA2 was not very stable under the condition for the assay. PNA has a peptide-like backbone. This peptide-like backbone is not stable at low pH. Under the acidic condition, the backbone could be cleaved. The pH of the HPLC solvent system is about 2, so the peptide-like backbone would be chopped off especially for PNA2, which has three Ts at the C-terminus end. This three C-terminus end Ts made PNA2 more unstable than other PNAs under the acidic conditions. Due to the problem of the dimerization of PNAs in water solution, the RP-HPLC can not be the only detection method used for the PNA affinity capture assay. It has to be combined with other detection technique for the DNA identification.
Additional file 1 of A combination of spearmint and flaxseed extract improved endocrine and histomorphology of ovary in experimental PCOS
Creators: name: Mehraban, Mina
name: Jelodar, Gholamali
name: Rahmanifar, Farhad
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Presentation of follicles number in the ovary as percentage.
Commitment and Matching Contributions to Public Goods
Creators: name: Boadway, Robin
name: Song, Zhen
name: Tremblay, Jean-Francois
name: Boadway, Robin
name: Song, Zhen
name: Tremblay, Jean-Francois
Publisher: name: Unknown
Year: 2006
Subjects: subject: Financial Economics
subject: International Development
subject: Public Economics
subject: Voluntary provision
subject: matching contributions
subject: commitment
subject: multiple public goods

description: This paper studies multi-stage processes of non-cooperative voluntary provision of public goods. In the first stage, one or more players announce contributions that may be conditional on the subsequent contributions of others. In later stages, players choose their own contributions and fulfill any commitments made in the first stage. Equilibrium contributions are characterized under different assumptions about the commitment ability of players, the number of public goods and whether players commit to matching rates or to discrete quantities. We focus on contribution mechanisms that can emerge and be sustainable without a central authority, and that therefore may be particularly relevant for the provision of international public goods. Efficient levels of public goods can be achieved under some circumstances.
HPLC as a method for purifying and identifying PNAs
Creators: name: Wei, Yingning
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3401
subject: Analytical chemistry

description: Peptide nucleic acids, PNAs are now widely used in DNA typing. This typing method represents a powerful alternative and improvement to all traditional DNA typing methods. During the PNA synthesis procedure, byproducts are produced which will interfere with the typing. HPLC is a separation technique used to purify PNAs. In addition to purification, information about retention time and its relationship to sequence and the size of the PNA was also obtained. This study has used allele specific PNA probes with HPLC detection for DNA typing. We have applied this method to HLA-DQalpha genotyping for detection of DQalpha1, DQalpha2, DQalpha3 and DQalpha4, the four major alleles. During the process of the assay, PNAs were used in the water solution. In this case, they always formed a dimer. The size of the dimer was about 25mer to 34mer, which was too big to be separated by the HPLC. The appearance of the dimer was confirmed by the MALDI-TOF MS. It was also found that PNA2 was not very stable under the condition for the assay. PNA has a peptide-like backbone. This peptide-like backbone is not stable at low pH. Under the acidic condition, the backbone could be cleaved. The pH of the HPLC solvent system is about 2, so the peptide-like backbone would be chopped off especially for PNA2, which has three Ts at the C-terminus end. This three C-terminus end Ts made PNA2 more unstable than other PNAs under the acidic conditions. Due to the problem of the dimerization of PNAs in water solution, the RP-HPLC can not be the only detection method used for the PNA affinity capture assay. It has to be combined with other detection technique for the DNA identification.
A data relocation approach for terrain surface analysis on multi-GPU systems: a case study on the total viewshed problem
Creators: name: Sanchez-Fernandez, A. J.
name: Romero, L. F.
name: Bandera, G.
name: Tabik, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Digital Elevation Models (DEMs) are important datasets for modelling the line of sight, such as radio signals, sound waves and human vision. These are commonly analyzed using rotational sweep algorithms. However, such algorithms require large numbers of memory accesses to 2D arrays which, despite being regular, result in poor data locality in memory. Here, we propose a new methodology called skewed Digital Elevation Model (sDEM), which substantially improves the locality of memory accesses and increases the inherent parallelism involved in the computation of rotational sweep-based algorithms. In particular, sDEM applies a data restructuring technique before accessing the memory and performing the computation. To demonstrate the high efficiency of sDEM, we use the problem of total viewshed computation as a case study considering different implementations for single-core, multi-core, single-GPU and multi-GPU platforms. We conducted two experiments to compare sDEM with (i) the most commonly used geographic information systems (GIS) software and (ii) the state-of-the-art algorithm. In the first experiment, sDEM is on average 8.8x faster than current GIS software despite being able to consider only few points because of their limitations. In the second experiment, sDEM is 827.3x faster than the state-of-the-art algorithm in the best case.