cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Semiclassical behaviour of expectation values in time evolved Lagrangian states for large times
Creators: name: Schubert, Roman
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the behaviour of time evolved quantum mechanical expectation values in Lagrangian states in the limit $\hbar\to 0$ and $t\to\infty$. We show that it depends strongly on the dynamical properties of the corresponding classical system. If the classical system is strongly chaotic, i.e. Anosov, then the expectation values tend to a universal limit. This can be viewed as an analogue of mixing in the classical system. If the classical system is integrable, then the expectation values need not converge, and if they converge their limit depends on the initial state. An additional difference occurs in the timescales for which we can prove this behaviour, in the chaotic case we get up to Ehrenfest time, $t\sim \ln(1/\hbar)$, whereas for integrable system we have a much larger time range.
Quantum Control via Enhanced Shortcuts to Adiabaticity
Creators: name: Whitty, Chris
name: Kiely, Anthony
name: Ruschhaupt, Andreas
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fast and robust quantum control protocols are often based on an idealised approximate description of the relevant quantum system. While this may provide a performance which is close to optimal, improvements can be made by incorporating elements of the full system representation. We propose a new technique for such scenarios, called enhanced shortcuts to adiabaticity (eSTA). The eSTA method works for previously intractable Hamiltonians by providing an analytical correction to existing STA protocols. This correction can be easily calculated and the resulting protocols are outside the class of STA schemes. We demonstrate the effectiveness of the method for three distinct cases: manipulation of an internal atomic state beyond the rotating wave approximation, transport of a neutral atom in an optical Gaussian trap and transport of two trapped ions in an anharmonic trap.
description: 9 pages, 4 figures
title: Leadership in Collaborative Emergency Management and Resilience
Creators: name: Alshayhan, Norah
Publisher: name: Old Dominion University Libraries
Year: 2021

description: Emergency management and resilience are key concepts and functions that are vital for mitigating risks of hazards and reducing the impacts of disasters. Public sector leaders within the emergency management and resilience domains play a critical role in leading the organization and its staff and partners in achieving these goals of risk mitigation and disaster impact reduction. This research investigates the skills and competencies that emergency management and resilience leaders need to be successful in collaborations to deal with emergencies and disasters today and in a post-COVID world. The study will employ a postpositivist case study design using interviews as an instrument to gain deep understanding of the important skillset and competencies identified by emergency management and resilience professionals. The study samples a target population of emergency management leaders and resilience professionals from the Mid-Atlantic region through snowball sampling. The sample will include emergency management and resilience professionals at the director or assistant director level (or equivalent), representing state, regional, and local government agencies and related functions in the private and nonprofit sectors. The study will develop understanding, based on the practices of emergency management and resilience professionals, of the critical skills and competencies needed to be effective in mitigating, preparing for, responding to, and recovering from disasters. Results of the research will provide insights for leadership development in these two domains.
A phase-field model of Hele-Shaw flows in the high viscosity contrast regime
Creators: name: Hernandez-Machado, A.
name: Lacasta, A. M.
name: Mayoral, E.
name: Poire, E. Corvera
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A one-sided phase-field model is proposed to study the dynamics of unstable interfaces of Hele-Shaw flows in the high viscosity contrast regime. The corresponding macroscopic equations are obtained by means of an asymptotic expansion from the phase-field model. Numerical integrations of the phase-field model in a rectangular Hele-Shaw cell reproduce finger competition with the final evolution to a steady state finger the width of which goes to one half of the channel width as the velocity increases.
Additional file 12 of Tuberomics: a molecular profiling for the adaption of edible fungi (Tuber magnatum Pico) to different natural environments
Creators: name: Vita, Federico
name: Giuntoli, Beatrice
name: Bertolini, Edoardo
name: Taiti, Cosimo
name: Marone, Elettra
name: Dâ€™Ambrosio, Chiara
name: Trovato, Emanuela
name: Sciarrone, Danilo
name: Mariosimone Zoccali
name: Balestrini, Raffaella
name: Scaloni, Andrea
name: Mondello, Luigi
name: Mancuso, Stefano
name: Alessio, Massimo
name: Alpi, Amedeo
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Computational Biology

description: Additional file 12: Table S8. Sample-specific expression of T. magnatum genes involved in sulfur metabolism.
Pyramidophoriella Hedqvist 1969
Creators: name: Desjardins, Christopher A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Pyramidophoriella

description: Pyramidophoriella Hedqvist
(Figs. 54–55)
 Pyramidophoriella Hedqvist, 1969: 178–179. Type species: Pyramidophoriella albiclava Hedqvist (orig. desig.).
 Diagnosis: Pyramidophoriella has a propodeum with 2 large dorso-lateral horns, with propodeal spiracles situated on the lateral surface of horns (Fig. 55). Although most diparines lack these horns completely, smaller dorso-lateral propodeal projections have been noted in some species of Lelaps. In these cases, however, the spiracles are not situated on the horns. Additionally, Pyramidophoriella completely lacks notauli. Aside from Pyramidophoriella, the only diparine which has been recorded as lacking notauli is Dipara machadoi. However, the type specimen of the latter taxon could not be located to verify the description.
 Discussion: Pyramidophoriella is resolved at the base of the clade containing Nosodipara and Pseudoceraphron based on 1 synapomorphy, the anterior expansion of the tegula. This relationship suggests that Nosodipara and Pseudoceraphron were part of a recolonization of Australia from Africa, and they are nested deep within a clade of genera endemic to Africa.
description: Published as part of Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), pp. 1-88 in Zootaxa 1647 (1) on pages 77-78, DOI: 10.11646/zootaxa.1647.1.1, http://zenodo.org/record/5103860
When Threads Meet Events: Efficient and Precise Static Race Detection with Origins
Creators: name: Liu, Bozhen
name: Liu, Peiming
name: Li, Yanze
name: Tsai, Chia-Che
name: Da Silva, Dilma
name: Huang, Jeff
Publisher: name: Zenodo
Year: 2021
Subjects: Data Race
Origins
Pointer Analysis
Static Analysis

description: This is the artifact of O2 from paper "When Threads Meet Events: Efficient and Precise Static Race Detection with Origins" published in PLDI'21. O2 detects data races in large complex multithreaded and event-driven software. O2 is powered by “origins”, an abstraction that unifies threads and events by treating them as entry points of code paths attributed with data pointers. We have implemented O2 for both C/C++ and JVM applications and applied it to a wide range of open source software (e.g., DaCapo Benchmarks, HDFS, Yarn, Zookeeper, Firefox Focus, Memcached, Linux kernel).
Transverse Momentum Broadening of a Jet in Quark-Gluon Plasma: An Open Quantum System EFT
Creators: name: Vaidya, Varun
name: Yao, Xiaojun
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We utilize the technology of open quantum systems in conjunction with the recently developed effective field theory for forward scattering to address the question of massless jet propagation through a weakly-coupled quark-gluon plasma in thermal equilibrium. We discuss various possible hierarchies of scales that may appear in this problem, by comparing thermal scales of the plasma with relevant scales in the effective field theory. Starting from the Lindblad equation, we derive and solve a master equation for the transverse momentum distribution of a massless quark jet, at leading orders both in the strong coupling and in the power counting of the effective field theory. Markovian approximation is justified in the weak coupling limit. Using the solution to the master equation, we study the transverse momentum broadening of a jet as a function of the plasma temperature and the time of propagation. We discuss the physical origin of infrared sensitivity that arises in the solution and a way to handle it in the effective field theory formulation. We suspect that the final measurement constraint can only cut-off leading infrared singularities and the solution to the Markovian master equation resums a logarithmic series. This work is a stepping stone towards understanding jet quenching and jet substructure observables on both light and heavy quark jets as probes of the quark-gluon plasma.
description: 41 pages, 1 figure; v2: minor change; v3: no change in the paper, only to update journal ref and doi, trying to fix a double-journal-ref problem in inspire
Spectra and Light Curves of GRB Afterglows
Creators: name: Tolstov, A. G.
name: Blinnikov, S. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We performed accurate numerical calculations of angle-, time-, and frequency-dependent radiative transfer for the relativistic motion of matter in gamma-ray burst (GRB) models. Our technique for solving the transfer equation, which is based on the method of characteristics, can be applied to the motion of matter with a Lorentz factor up to 1000. The effect of synchrotron self-absorption is taken into account. We computed the spectra and light curves from electrons with a power-law energy distribution in an expanding relativistic shock and compare them with available analytic estimates. The behavior of the optical afterglows from GRB 990510 and GRB 000301c is discussed qualitatively.
description: 8 pages, 7 figures
Dinarmolaelaps Masi 1917
Creators: name: Desjardins, Christopher A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Dinarmolaelaps

description: Dinarmolaelaps Masi
 Dinarmolaelaps Masi 1917: 172. Type species: Dinarmolaelaps protus Masi (by monotypy).
 Discussion: Based on examination of the Dinarmolaelaps protus holotype specimen, Dinarmolaelaps belongs near or within Homoporus (R. Burks pers. comm.). The holotype of Dinarmolaelaps vatomandryi is missing both the head and gaster. The thorax bears little resemblance to that of D. protus, and it is difficult to speculate on the relationship between the two taxa. Dinarmolaelaps is herein removed from Diparinae and placed in Pteromalinae.
description: Published as part of Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), pp. 1-88 in Zootaxa 1647 (1) on page 79, DOI: 10.11646/zootaxa.1647.1.1, http://zenodo.org/record/5103860
Serum Angiopoietin-like Protein 6, Risk of Type 2 Diabetes, and Response to Hyperglycemia: A Prospective Cohort Study. Supplementary Tables.
Creators: name: Kang-Chih Fan
name: Hung-Tsung Wu
name: Jung-Nan Wei
name: Lee-Ming Chuang
name: Chih-Yao Hsu
name: I-Weng Yen
name: Chia-Hung Lin
name: Mao-Shin Lin
name: Shyang-Rong Shih
name: Shu-Huei Wang
name: Tien-Jyun Chang
name: Hung-Yuan Li
Publisher: name: figshare
Year: 2020
Subjects: Medicine

description: Supplementary Tables for the manuscript "Serum Angiopoietin-like Protein 6, Risk of Type 2 Diabetes, and Response to Hyperglycemia: A Prospective Cohort Study".
title: Information Communication Technology and Emergency Management Communication: Lessons from the 2020 ‘Hurricane-Pandemic’ Wave
Creators: name: Blake, Ren-Neasha
Publisher: name: Old Dominion University Libraries
Year: 2021

description: The coronavirus pandemic [COVID-19] forged new roles, dynamics, and systems across the public administration and policy domain. The hurricane season approached just a few months after the COVID-19 outbreak and necessitated swift emergency management response. The usual planning for the hurricane season grappled with pandemic threats, clouds of fear, and the urgent need for reconfigured strategies. Policy practitioners, academicians, and non-government officials convened to construct and deconstruct cross-sector plans for navigating the hurricane-pandemic wave. These tweaked strategies were necessary for coastal communities like Hampton Roads that are prone to extreme weather events. Information communication technology (ICT) was at the forefront of resilience thrusts, especially for communicating and information sharing. There are growing studies on e-resilience that examine ICT infrastructural resilience in the face of emergencies and severe weather events. In this paper, the researchers explored ICT enablers for swift and consistent communication during a hurricane-pandemic wave. We also analyzed communication barriers and community needs during emergencies and discussed strategies for hurdling those barriers. We gathered data from the recently held CONVERGE Hurricane-Pandemic Workshops, led by Old Dominion University and the University of South Florida. We then grouped, coded, analyzed, and formed a qualitative sequential model for effective ‘hurricane-pandemic’ communication. This study is significant for informing emergency management policy and praxis in coastal communities globally.
Alpha-1 adrenergic receptor antagonists to prevent hyperinflammation and death from lower respiratory tract infection
Creators: name: Koenecke, Allison
name: Powell, Michael
name: Xiong, Ruoxuan
name: Shen, Zhu
name: Fischer, Nicole
name: Huq, Sakibul
name: Khalafallah, Adham M.
name: Trevisan, Marco
name: Sparen, Pär
name: Carrero, Juan J
name: Nishimura, Akihiko
name: Caffo, Brian
name: Stuart, Elizabeth A.
name: Bai, Renyuan
name: Staedtke, Verena
name: Thomas, David L.
name: Papadopoulos, Nickolas
name: Kinzler, Kenneth W.
name: Vogelstein, Bert
name: Zhou, Shibin
name: Bettegowda, Chetan
name: Konig, Maximilian F.
name: Mensh, Brett
name: Vogelstein, Joshua T.
name: Athey, Susan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: In severe viral pneumonia, including Coronavirus disease 2019 (COVID-19), the viral replication phase is often followed by hyperinflammation, which can lead to acute respiratory distress syndrome, multi-organ failure, and death. We previously demonstrated that alpha-1 adrenergic receptor ($α_1$-AR) antagonists can prevent hyperinflammation and death in mice. Here, we conducted retrospective analyses in two cohorts of patients with acute respiratory distress (ARD, n=18,547) and three cohorts with pneumonia (n=400,907). Federated across two ARD cohorts, we find that patients exposed to $α_1$-AR antagonists, as compared to unexposed patients, had a 34% relative risk reduction for mechanical ventilation and death (OR=0.70, p=0.021). We replicated these methods on three pneumonia cohorts, all with similar effects on both outcomes. All results were robust to sensitivity analyses. These results highlight the urgent need for prospective trials testing whether prophylactic use of $α_1$-AR antagonists ameliorates lower respiratory tract infection-associated hyperinflammation and death, as observed in COVID-19.
description: 31 pages, 10 figures
eta, eta-prime -> pi^+ pi^- gamma with coupled channels
Creators: name: Borasoy, B.
name: Nissler, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The decays eta, eta-prime -> pi^+ pi^- gamma are investigated within an approach that combines one-loop chiral perturbation theory with a coupled channel Bethe-Salpeter equation which satisfies unitarity constraints and generates vector mesons dynamically from composite states of two pseudoscalar mesons. It is furthermore shown that the inclusion of the eta-prime as a dynamical degree of freedom does not renormalize the Wess-Zumino-Witten term.
description: 21 pages, 11 figures
Recent Advances in Coupled Oscillator Theory
Creators: name: Ermentrout, Bard
name: Park, Youngmin
name: Wilson, Dan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Dynamical Systems (math.DS)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: We review the theory of weakly coupled oscillators for smooth systems. We then examine situations where application of the standard theory falls short and illustrate how it can be extended. Specific examples are given to non-smooth systems with applications to the Izhikevich neuron. We then introduce the idea of isostable reduction to explore behaviors that the weak coupling paradigm cannot explain. In an additional example, we show how bifurcations that change the stability of phase locked solutions in a pair of identical coupled neurons can be understood using the notion of isostable reduction.
description: 23 pages, 5 figures, review
Subaru High-Dispersion Spectroscopy of Narrow-Line Region in the Seyfert Galaxy NGC 4151
Creators: name: Nagao, Tohru
name: Murayama, Takashi
name: Shioya, Yasuhiro
name: Taniguchi, Yoshiaki
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on a study of forbidden emission-line spectrum of nearby Seyfert 1.5 galaxy NGC 4151 based on the high-resolution (R ~ 45,000) optical spectrum obtained by using the High Dispersion Spectrograph boarded on the Subaru Telescope. The profile parameters such as the emission-line widths, the velocity shifts from the recession velocity of the host galaxy, and the asymmetry indices, for emission lines including very faint ones such as [Ar IV]4712,4740 and [Fe VI]5631,5677 are investigated. Statistically significant correlations between the measured profile parameters and the critical densities of transitions are found while there are no meaningful correlations between the profile parameters and the ionization potentials of ions. By comparing the results with photoionization model calculations, we remark that a simple power-law distribution of the gas density which is independent of the radius from the nucleus cannot explain the observed correlation between the emission-line widths and the critical densities of the transitions. Taking the additional dense gas component expected to exist at the innermost of the narrow-line region into account, the observed correlations between the emission-line width and the critical density of the transitions can be understood since high-critical-density emission lines can arise at such relatively inner regions even if their ionization potentials are low. The observed correlation between the blueshift amounts of emission lines and the critical densities of the ions is also explained if such dense gas clouds located closer to the nucleus have larger outflowing velocities.
description: 19 pages and 1 separate jpeg figure. Accepted for publication in AJ
title: Conflicto Armado Colombiano: Una Mirada Interseccional De Género, Racismo Y Colonialidad
Creators: name: Parra Cadavid, Sara
Publisher: name: Georgia State University
Year: 2023

description: Abstract: This research project analyzes the intersectionality of the concepts of gender, race, and coloniality through the testimonies collected by the Colombian Truth Commission; within the framework of the Peace Agreement signed between the country's government and the FARC guerrilla, in the text, My Body is the Truth Part 1. The analysis was obtained from the testimonies of racialized women in Colombia, who self-identified as black, Afro-Colombian, indigenous, and peasant; together with the theoretical approaches of feminist authors such as Simone De Beauvoir, Ochy Curiel, María Lugones, and Rita Segato. Furthermore, this research proposes the discursive and legal use of the term femigenocide, due to the high rate of impersonality and lethality in the violence against women victims of the Colombian conflict, by the criminal organizations/corporations that operated there.

Resumen:

Este trabajo investigativo analiza la interseccionalidad de los conceptos género, raza y colonialidad a través de los testimonios recopilados por la Comisión de la Verdad de Colombia, en el marco del Acuerdo de Paz firmado entre el gobierno del país y la guerrilla de las FARC, en el texto Mi cuerpo es la verdad, Parte 1. El análisis se obtuvo desde los testimonios de las mujeres racializadas de Colombia, que se autoidentificaron como negras, afrocolombianas, indígenas y campesinas; junto a las aproximaciones teóricas de autoras feministas como Simone De Beauvoir, Ochy Curiel, María Lugones, y Rita Segato. Además, esta investigación propone la utilización discursiva y jurídica del término femigenocidio, debido al alto índice de impersonalidad y letalidad en las violencias en contra de las mujeres víctimas del conflicto colombiano, por parte de las organizaciones/corporaciones crimínales que allí operaron.
Mesolelaps Ashmead
Creators: name: Desjardins, Christopher A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Mesolelaps

description: Mesolelaps Ashmead
 Mesolelaps Ashmead 1901: 313. Type species: Mesolelaps cyaneiventris Ashmead (orig. desig. and by monotypy).
 Discussion: Mesolelaps is herein removed from Diparinae and placed in Miscogasterinae, without tribal affiliation, based on the reasoning discussed in the generic entry for Calolelaps.
description: Published as part of Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), pp. 1-88 in Zootaxa 1647 (1) on page 80, DOI: 10.11646/zootaxa.1647.1.1, http://zenodo.org/record/5103860
Neck fragmentation reaction mechanism
Creators: name: Baran, V.
name: Colonna, M.
name: Di Toro, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on a microscopic transport model, we study the origin of nonstatistical Intermediate Mass Fragment ($IMF$) production in semicentral heavy ion collisions at the Fermi energies. We show that a fast, dynamical $IMF$ formation process, the {\it neck fragmentation mechanism}, can explain the experimentally observed features: deviations from Viola systematics and anisotropic, narrow angular distributions. It may be regarded as the continuation of the multifragmentation mechanism towards intermediate impact parameters. Its relation to other dynamical mechanisms, the induced fission and the abrasion of the spectator zones, that can also contribute to mid-rapidity $IMF$ production, is discussed. The dependence on beam energy and centrality of the collision is carefully analysed. The competition between volume and surface instabilities makes this mechanism very sensitive to the in-medium nucleon-nucleon interactions, from the cross sections for hard collisions to the compressibility and other Equation of State ($EOS$) properties. For charge asymmetric collisions the sensitivity of various observables to the symmetry energy is investigated. Of particular interest appears the isospin diffusion dynamics with no signal of isospin equilibration. However, in spite of the short time scales and of the dynamical aspects, we notice isoscaling features of the neck mechanism. We observe that isospin enrichement of the neck zone as well as the isoscaling parameters are sensitive to the density dependence of asymmetry term of EOS around and below saturation value.
description: 29 pages, 20 figures
Magnetic-field effects on the in-plane electrical resistivity in the single-crystal La$_{2-x}$Ba$_x$CuO$_4$ and La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$ around $x=1/8$: Relating to the field-induced stripe order
Creators: name: Adachi, T.
name: Kitajima, N.
name: Manabe, T.
name: Koike, Y.
name: Kudo, K.
name: Sasaki, T.
name: Kobayashi, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Temperature dependence of the in-plane electrical resistivity, $ρ_{\rm ab}$, in various magnetic fields has been measured in the single-crystal La$_{2-x}$Ba$_x$CuO$_4$ with $x=0.08$, 0.10, 0.11 and La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$ with $x=0.12$. It has been found that the superconducting transition curve shows a so-called fan-shape broadening in magnetic fields for $x=0.08$, while it shifts toward the low-temperature side in parallel with increasing field for $x=0.11$ and 0.12 where the charge-spin stripe order is formed at low temperatures. As for $x=0.10$, the broadening is observed in low fields and it changes to the parallel shift in high fields above 9 T. Moreover, the normal-state value of $ρ_{\rm ab}$ at low temperatures markedly increases with increasing field up to 15 T. It is possible that these pronounced features of $x=0.10$ are understood in terms of the magnetic-field-induced stabilization of the stripe order suggested from the neutron-scattering measurements in the La-214 system. The $ρ_{\rm ab}$ in the normal state at low temperatures has been found to be proportional to ln(1/$T$) for $x=0.10$, 0.11 and 0.12. The ln(1/$T$) dependence of $ρ_{\rm ab}$ is robust even in the stripe-ordered state.
description: 6 pages, 4 figures, ver. 2 has been accepted for publication in Phys. Rev. B
Neolelaps Ashmead 1901
Creators: name: Desjardins, Christopher A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Neolelaps

description: Neolelaps Ashmead
 Neolelaps Ashmead 1901: 312. Type species: Neolelaps hawaiiensis Ashmead (orig. desig.).
 Discussion: Neolelaps is herein removed from Diparinae and placed in Miscogasterinae, without tribal affiliation, based on the reasoning discussed in the generic entry for Calolelaps.
description: Published as part of Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), pp. 1-88 in Zootaxa 1647 (1) on page 80, DOI: 10.11646/zootaxa.1647.1.1, http://zenodo.org/record/5103860
Baxter equations and Deformation of Abelian Differentials
Creators: name: Smirnov, F. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper the proofs are given of important properties of deformed Abelian differentials introduced earlier in connection with quantum integrable systems. The starting point of the construction is Baxter equation. In particular, we prove Riemann bilinear relation. Duality plays important role in our consideration. Classical limit is considered in details.
description: 28 pages, 1 figure
The C Operator in PT-Symmetric Quantum Theories
Creators: name: Bender, Carl M.
name: Brod, Joachim
name: Refig, Andre
name: Reuter, Moritz
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Hamiltonian H specifies the energy levels and the time evolution of a quantum theory. It is an axiom of quantum mechanics that H be Hermitian because Hermiticity guarantees that the energy spectrum is real and that the time evolution is unitary (probability preserving). This paper investigates an alternative way to construct quantum theories in which the conventional requirement of Hermiticity (combined transpose and complex conjugate) is replaced by the more physically transparent condition of space-time reflection (PT) symmetry. It is shown that if the PT symmetry of a Hamiltonian H is not broken, then the spectrum of H is real. Examples of PT-symmetric non-Hermitian quantum-mechanical Hamiltonians are H=p^2+ix^3 and H=p^2-x^4. The crucial question is whether PT-symmetric Hamiltonians specify physically acceptable quantum theories in which the norms of states are positive and the time evolution is unitary. The answer is that a Hamiltonian that has an unbroken PT symmetry also possesses a physical symmetry represented by a linear operator called C. Using C it is shown how to construct an inner product whose associated norm is positive definite. The result is a new class of fully consistent complex quantum theories. Observables are defined, probabilities are positive, and the dynamics is governed by unitary time evolution. After a review of PT-symmetric quantum mechanics, new results are presented here in which the C operator is calculated perturbatively in quantum mechanical theories having several degrees of freedom.
Seyrigina Risbec
Creators: name: Desjardins, Christopher A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Seyrigina

description: Seyrigina Risbec
 Seyrigina Risbec 1952: 381. Type species: Seyrigina gracile Risbec (by monotypy).
 Discussion: The holotype of Seyrigina gracile is missing both the head and gaster. However, the tarsi are four segmented, and the specimen appears to belong to Eulophinae (Eulophidae). Seyrigina is therefore transferred to the Eulophinae (Eulophidae). Roger Burks (pers. comm.) has suggested that Seyrigina gracile belongs specifically within Hemiptarsensus. The holotype of Seyrigina rizicola is not located at the Paris Museum, and is presumed to be lost.
description: Published as part of Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), pp. 1-88 in Zootaxa 1647 (1) on page 80, DOI: 10.11646/zootaxa.1647.1.1, http://zenodo.org/record/5103860
The evolution of carbon-polluted white dwarfs at low effective temperatures
Creators: name: Blouin, S.
name: Dufour, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Taking advantage of the Gaia Data Release 2, recent studies have revisited the evolution of carbon-polluted white dwarfs (DQs) across a large range of effective temperatures. These analyses have clearly confirmed the existence of two distinct DQ evolutionary sequences: one with normal-mass white dwarfs and one with heavily polluted and generally more massive objects. The first sequence is thought to result from the dredge-up of carbon from the core, while the second could at least partially be made of descendants of Hot DQs. However, the evolution of carbon-polluted white dwarfs below 6500 K remains unexplored, mainly due to the theoretical difficulties associated with modelling their dense atmospheres. In this work, we present a detailed star-by-star analysis of cool carbon-polluted white dwarfs. Our recently improved atmosphere models allow us to obtain good fits to most objects, including very cool DQpec white dwarfs with strongly shifted C$_2$ molecular bands. We show that cool carbon-polluted white dwarfs keep following the two distinct evolutionary tracks previously identified at higher temperatures. We also find that most DQ white dwarfs transform into DQpec when their photospheric densities exceed $\approx$ 0.15 g/cm$^3$. However, we identify stars for which the DQ$\rightarrow$DQpec transition occurs at lower photospheric densities, possibly due to the presence of a strong magnetic field.
description: 10 pages, 5 figures, 2 tables. Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Histoire de la Guerre d'Espagne et des Brigades internationales_Partie1
Creators: name: Marty, André
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2015

description: Correspondance, notes, documents de travail, brochures, témoignages et récits, lettres d’antifascistes espagnols déportés ou emprisonnés
Spalangiopelta Masi
Creators: name: Desjardins, Christopher A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Spalangiopelta

description: Spalangiopelta Masi
Spalangiopelta Masi 1922: 169. Type species: Spalangiopelta brachyptera Masi (by monotypy).
 Diparisca Hedqvist 1964: 54–55. Type species: Diparisca ferrierei Hedqvist (orig. desig. and by monotypy). New synonymy.
 Discussion: Diparisca, known only from the type specimen of D. ferrierei, is herein synonymized with Spalangiopelta. That holotype specimen has been examined and conclusively identified as Spalangiopelta. Darling (1991a) mentioned an undescribed species from Brazil (Nova Teutonia and San Jose Barreiro), but postponed its description because he only had male material. The holotype of D. ferrierei is believed to be the female associated with the aforementioned males. Additionally, 2 female specimens from the same locality (and apparently the same species) exist in the collection at the CNC. It is possible that the specimens were split up in collections based on their sexual dimorphism.
description: Published as part of Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), pp. 1-88 in Zootaxa 1647 (1) on page 82, DOI: 10.11646/zootaxa.1647.1.1, http://zenodo.org/record/5103860
Cooperative enhancement of superconducting correlations by electron-electron and electron-phonon interactions in the quarter-filled band
Creators: name: Clay, R. T.
name: Roy, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the results of Quantum Monte Carlo calculations for a two dimensional frustrated Hubbard model coupled to bond phonons. The model is known to have a d-wave superconducting ground state in the limit of large phonon frequency for sufficiently strong electron-phonon coupling. In the absence of electron-phonon coupling the Hubbard interaction U enhances superconducting pairing in the quarter-filled (density $ρ$ = 0.5) band. We show here that at $ρ$ = 0.5 electron-electron and electron-phonon interactions cooperatively reinforce d-wave pairing, while competing with each other at all other densities. Cooperative degrees of freedom are found in many phase transitions and are essential to understanding superconductivity in strongly correlated materials.
description: 6 pages, 5 figures
The cosmological evolution of metal enrichment in quasar host galaxies
Creators: name: Di Matteo, Tiziana
name: Croft, Rupert A. C.
name: Springel, Volker
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the gas metallicity of quasar hosts using cosmological hydrodynamic simulations of the Lambda-cold dark matter model. Galaxy formation in the simulations is coupled with a prescription for black hole activity enabling us to study the evolution of the metal enrichment in quasar hosts and hence explore the relationship between star/spheroid formation and black hole growth/activity. We find a steep radial metallicity gradient in quasar host galaxies, with gas metallicities close to solar values in the outer parts but becoming supersolar in the center. The hosts of the rare bright quasars at z~5-6 have star formation rates of several hundred solar masses per year and halo masses of order ~10^12 solar masses. Already at these redshifts they have supersolar (Z ~2-3 solar) central metallicities, with a mild dependence of metallicity on luminosity, consistent with observed trends. The mean value of metallicity is sensitive to the assumed quasar lifetime, providing a useful new probe of this parameter. We find that lifetimes from 10^7-4x10^7yr are favored by comparison to observational data. In both the models and observations, the rate of evolution of the mean quasar metallicity as a function of redshift is generally flat out to z ~ 4-5. Beyond the observed redshift range and out to redshift z ~ 6-8, we predict a slow decline of the mean central metallicity towards solar and slightly subsolar values as we approach the epoch of the first significant star formation activity
description: submitted to ApJ, 13 pages, 9 figures, emulateapj.sty, corrected typos and added reference
JCS: An Explainable COVID-19 Diagnosis System by Joint Classification and Segmentation
Creators: name: Wu, Yu-Huan
name: Gao, Shang-Hua
name: Mei, Jie
name: Xu, Jun
name: Fan, Deng-Ping
name: Zhang, Rong-Guo
name: Cheng, Ming-Ming
Publisher: name: arXiv
Year: 2020
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: Recently, the coronavirus disease 2019 (COVID-19) has caused a pandemic disease in over 200 countries, influencing billions of humans. To control the infection, identifying and separating the infected people is the most crucial step. The main diagnostic tool is the Reverse Transcription Polymerase Chain Reaction (RT-PCR) test. Still, the sensitivity of the RT-PCR test is not high enough to effectively prevent the pandemic. The chest CT scan test provides a valuable complementary tool to the RT-PCR test, and it can identify the patients in the early-stage with high sensitivity. However, the chest CT scan test is usually time-consuming, requiring about 21.5 minutes per case. This paper develops a novel Joint Classification and Segmentation (JCS) system to perform real-time and explainable COVID-19 chest CT diagnosis. To train our JCS system, we construct a large scale COVID-19 Classification and Segmentation (COVID-CS) dataset, with 144,167 chest CT images of 400 COVID-19 patients and 350 uninfected cases. 3,855 chest CT images of 200 patients are annotated with fine-grained pixel-level labels of opacifications, which are increased attenuation of the lung parenchyma. We also have annotated lesion counts, opacification areas, and locations and thus benefit various diagnosis aspects. Extensive experiments demonstrate that the proposed JCS diagnosis system is very efficient for COVID-19 classification and segmentation. It obtains an average sensitivity of 95.0% and a specificity of 93.0% on the classification test set, and 78.5% Dice score on the segmentation test set of our COVID-CS dataset. The COVID-CS dataset and code are available at https://github.com/yuhuan-wu/JCS.
description: To appear in IEEE Transactions on Image Processing. Dataset and code are available at https://github.com/yuhuan-wu/JCS
Unlocking the Key to Life: Observation and Formation of Nitriles in Protoplanetary Disks
Creators: name: Canta, Alessandra
Publisher: name: Zenodo
Year: 2021
Subjects: Astro99
Astrochemistry
Protoplanetary disk

description: The chemical composition of protoplanetary disks around young stars affects the chemical habitability of nascent planets. Nitriles are key participants in reactions that lead to pre-biotically interesting molecules such as RNA and amino acids. However, their abundances and formation mechanisms in planet-forming disks are not well constrained. In this thesis, we present the first detection of ortho- CH2CN in a protoplanetary disk. An excitation analysis reveals a disk-averaged column density (Ntot) of 4.7(± 0.4)*10^(12) cm^(−2), and a rotational temperature (Trot) of 38 ± 5 K. A radially resolved analysis shows that the CH2CN column density peaks within the first 50 au of the disk whereas the Trot remains constant across the disk. Our observations and models point to a close chemical relationship between CH2CN and the more commonly observed CH3CN. We then investigate the role of VUV irradiation in nitrile formation by laboratory experiments. We irradiate NH3:C2H6, NH3:C2H4, and NH3:C2H2 ice mixtures at 30 K, 40 K, and 50 K. We find that CH3CN is formed in a subset of these experiments and that CH3CH=NH is an intermediate for CH3CN production. These reactions show a temperature dependence and sensitivity to the unsaturation of the hydrocarbon reactant. Comparison of our findings to observed molecule abundances in clouds suggests that these are not the main pathways for nitrile formation in disks. Contribution from ice chemistry involving the more abundant N2 should be investigated.
description: Astro99
Negative superdiffusion due to the inhomogeneous convection
Creators: name: Iomin, A.
name: Baskin, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Fractional transport of particles on a comb structure in the presence of an inhomogeneous convection flow is studied. The large scale asymptotics is considered. It is shown that a contaminant spreads superdiffusively in the direction opposite to the convection flow. Conditions for the realization of this new effect is discussed in detail.
Low energy doubly-virtual Compton scattering from di-lepton electroproduction on a nucleon
Creators: name: Pauk, Vladyslav
name: Carlson, Carl E.
name: Vanderhaeghen, Marc
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a new way to experimentally determine the subleading low-energy structure constant of doubly-virtual Compton scattering on a proton. Such empirical determination will reduce the theoretical model error in estimates of the hadronic correction to the muonic hydrogen Lamb shift. We demonstrate that the di-lepton forward-backward asymmetry in the $e^- p \to e^- p \, e^- e^+$ process, which can be accessed at electron scattering facilities, yields a large sensitivity to this so far unknown low-energy constant.
Advances in point-contact spectroscopy: two-band superconductor MgB2 (A review)
Creators: name: Yanson, I. K.
name: Naidyuk, Yu. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Analysis of the point-contact spectroscopy (PCS) data on the new dramatic high-T$_c$ superconductor MgB$_2$ reveals quite different behavior of two disconnected $σ$ and $π$ electronic bands, deriving from their anisotropy, different dimensionality, and electron-phonon interaction. PCS allows direct registration of both the superconducting gaps and electron-phonon-interaction spectral function of the two-dimensional $σ$ and three-dimensional $π$ band, establishing correlation between the gap value and intensity of the high-T$_c$ driving force -- the $E_{2g}$ boron vibration mode. PCS data on some nonsuperconducting transition-metal diborides are surveyed for comparison.
description: 17 pages, 30 figs., will be published in Low Temp. Phys. V.30 (2004) N4
The PGM-index: a multicriteria, compressed and learned approach to data indexing
Creators: name: Ferragina, Paolo
name: Vinciguerra, Giorgio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Databases (cs.DB)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: E.1; E.4; I.2.6

description: The recent introduction of learned indexes has shaken the foundations of the decades-old field of indexing data structures. Combining, or even replacing, classic design elements such as B-tree nodes with machine learning models has proven to give outstanding improvements in the space footprint and time efficiency of data systems. However, these novel approaches are based on heuristics, thus they lack any guarantees both in their time and space requirements. We propose the Piecewise Geometric Model index (shortly, PGM-index), which achieves guaranteed I/O-optimality in query operations, learns an optimal number of linear models, and its peculiar recursive construction makes it a purely learned data structure, rather than a hybrid of traditional and learned indexes (such as RMI and FITing-tree). We show that the PGM-index improves the space of the FITing-tree by 63.3% and of the B-tree by more than four orders of magnitude, while achieving their same or even better query time efficiency. We complement this result by proposing three variants of the PGM-index. First, we design a compressed PGM-index that further reduces its space footprint by exploiting the repetitiveness at the level of the learned linear models it is composed of. Second, we design a PGM-index that adapts itself to the distribution of the queries, thus resulting in the first known distribution-aware learned index to date. Finally, given its flexibility in the offered space-time trade-offs, we propose the multicriteria PGM-index that efficiently auto-tune itself in a few seconds over hundreds of millions of keys to the possibly evolving space-time constraints imposed by the application of use. We remark to the reader that this paper is an extended and improved version of our previous paper titled "Superseding traditional indexes by orchestrating learning and geometry" (arXiv:1903.00507).
description: We remark to the reader that this paper is an extended and improved version of our previous paper titled "Superseding traditional indexes by orchestrating learning and geometry" (arXiv:1903.00507)
Spectral evolution of the microquasar XTE J1550-564 over its entire 2000 outburst
Creators: name: Rodriguez, J.
name: Corbel, S.
name: Tomsick, J. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on RXTE observations of the microquasar XTE J1550-564 during a ~70 day outburst in April-June 2000. We study the evolution of the PCA+HEXTE spectra over the outburst. The source transited from an initial Low Hard State (LS), to an Intermediate State (IS), and then back to the LS. The source shows an hysteresis effect similar to what is observed in other sources, favoring a common origin for the state transitions in soft X-ray transients. The first transition occurs at a ~ constant 2-200 keV flux, which probably indicates a change in the relative importance of the emitting media. The second transition is more likely driven by a drop in the mass accretion rate. In both LS, the spectra are characterized by the presence of a strong power-law tail (Compton corona) with a variable high energy cut-off. During the IS, the spectra show the presence of a ~0.8 keV thermal component (accretion disk). We discuss the apparently independent evolution of the two media, and show that right after the X-ray maximum on MJD 51662, the decrease of the source luminosity is due to a decrease of the power-law luminosity, at a constant disk luminosity. This, together with the detection of radio emission (with a spectrum typical of optically thin synchrotron emission), may suggest that the corona is ejected and further detected as a discrete radio ejection.
description: Accepted for publication in ApJ. 9 pages, 4 figures, abstract abridged