cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Some criteria for circle packing types and combinatorial Gauss-Bonnet Theorem
Creators: name: Oh, Byung-Geun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C15, 05B40, 05C10

description: We investigate criteria for circle packing(CP) types of disk triangulation graphs embedded into simply connected domains in $ \mathbb{C}$. In particular, by studying combinatorial curvature and the combinatorial Gauss-Bonnet theorem involving boundary turns, we show that a disk triangulation graph is CP parabolic if \[ \sum_{n=1}^\infty \frac{1}{\sum_{j=0}^{n-1} (k_j +6)} = \infty, \] where $k_n$ is the degree excess sequence defined by \[ k_n = \sum_{v \in B_n} (\mbox{deg}\, v - 6) \] for combinatorial balls $B_n$ of radius $n$ and centered at a fixed vertex. It is also shown that the simple random walk on a disk triangulation graph is recurrent if \[ \sum_{n=1}^\infty \frac{1}{\sum_{j=0}^{n-1} (k_j +6)+\sum_{j=0}^{n} (k_j +6)} = \infty. \] These criteria are sharp, and generalize a conjecture by He and Schramm in their paper from 1995, which was later proved by Repp in 2001. We also give several criteria for CP hyperbolicity, one of which generalizes a theorem of He and Schramm, and present a necessary and sufficient condition for CP types of layered circle packings generalizing and confirming a criterion given by Siders in 1998.
description: 45 pages, 19 figures; to appear in TAMS
The landscape from within: Citizenship, locale and the construction of place in Dupont circle
Creators: name: II Hersker, Alan L.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4401
subject: Anthropology
subject: FOS: Sociology

description: Rather than viewing citizenship merely as a relationship defined by the state, we can use this concept as an analytical category to understand our relationships with other people and with the built environment. Citizenship, like gender, is a performative category in which every person's attempt to approximate the ideal changes the very nature of that ideal. Using interviews, text analysis, participant observation and archival research, I investigate two of the ways that residents of the Dupont East neighborhood of Washington, DC construct local citizenship. These two discursive constructions of citizen activist and citizen consumer entail strikingly different sets of rights, responsibilities, and obligations to people and to the locale. Under this arrangement, rather than being static and emplaced, landscape and "ways of seeing" the local terrain become processes by which people negotiate and contest their relationship and behaviors with other residents, with members of other groups, and with the state.
Additional file 2 of Assessing fidelity to evidence-based quality improvement as an implementation strategy for patient-centered medical home transformation in the Veterans Health Administration
Creators: name: Stockdale, Susan E.
name: Hamilton, Alison B.
name: Bergman, Alicia A.
name: Rose, Danielle E.
name: Giannitrapani, Karleen F.
name: Dresselhaus, Timothy R.
name: Yano, Elizabeth M.
name: Rubenstein, Lisa V.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Site and Across-site Workgroup Participation in Core EBQI-PACT Components.
L’universo finto dell’intelligenza artificiale
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Utilizzando l’intelligenza artificiale, i ricercatori riescono a riprodurre immagini straordinariamente realistiche dell’universo, da usare come calibratori per algoritmi informatici che elaborano le immagini digitali acquisite dai telescopi robotici. Tutte le immagini sono state rese disponibili sia su una pagina web che su Twitter, con l’unica raccomandazione di tenere bene presente che non sono Apod della Nasa
The 2dF QSO Redshift Survey - XII. The spectroscopic catalogue and luminosity function
Creators: name: Croom, S. M.
name: Smith, R. J.
name: Boyle, B. J.
name: Shanks, T.
name: Miller, L.
name: Outram, P. J.
name: Loaring, N. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the final catalogue of the 2dF QSO Redshift Survey (2QZ), based on Anglo-Australian Telescope 2dF spectroscopic observations of 44576 colour-selected (u b_J r) objects with 18.25
description: 24 pages, 23 figures. Accepted for publication in MNRAS. Version with full resolution figures available from http://www.aao.gov.au/local/www/scroom/publications/
One-dimensionality of the spin-polarized surface conduction and valence bands of quasi-one-dimensional Bi chains on GaSb(110)-(2$\times$1)
Creators: name: Ohtsubo, Yoshiyuki
name: Tokumasu, Naoki
name: Watanabe, Hiroshi
name: Nakamura, Takuto
name: Fèvre, Patrick Le
name: Bertran, François
name: Imamura, Masaki
name: Yamamoto, Isamu
name: Azuma, Junpei
name: Takahashi, Kazutoshi
name: Kimura, Shin-ichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Surface electronic structure and its one-dimensionality above and below the Fermi level ($E_{\rm F}$) were surveyed on the Bi/GaSb(110)-(2$\times$1) surface hosting quasi-one-dimensional (Q1D) Bi chains, using conventional (one-photon) and two-photon angle-resolved photoelectron spectroscopy (ARPES) and theoretical calculations. ARPES results reveal that the Q1D electronic states are within the projected bulk bandgap. Circular dichroism of two-photon ARPES and density-functional-theory calculation indicate clear spin and orbital polarization of the surface states consistent with the giant sizes of Rashba-type SOI, derived from the strong contribution of heavy Bi atoms. The surface conduction band above $E_{\rm F}$ forms a nearly straight constant-energy contour, suggesting its suitability for application in further studies of one-dimensional electronic systems with strong SOI. A tight-binding model calculation based on the obtained surface electronic structure successfully reproduces the surface band dispersions and predicts possible one- to two-dimensional crossover in the temperature range of 60--100~K.
description: 18 pages, 6 figures and 2 tables
The landscape from within: Citizenship, locale and the construction of place in Dupont circle
Creators: name: II Hersker, Alan L.
Publisher: name: American University
Year: 2023

description: Rather than viewing citizenship merely as a relationship defined by the state, we can use this concept as an analytical category to understand our relationships with other people and with the built environment. Citizenship, like gender, is a performative category in which every person's attempt to approximate the ideal changes the very nature of that ideal. Using interviews, text analysis, participant observation and archival research, I investigate two of the ways that residents of the Dupont East neighborhood of Washington, DC construct local citizenship. These two discursive constructions of citizen activist and citizen consumer entail strikingly different sets of rights, responsibilities, and obligations to people and to the locale. Under this arrangement, rather than being static and emplaced, landscape and "ways of seeing" the local terrain become processes by which people negotiate and contest their relationship and behaviors with other residents, with members of other groups, and with the state.
Constructing security: The power of language in United States foreign policy
Creators: name: Howard, Peter Max
Publisher: name: American University
Year: 2023

description: Though the United States enters numerous international agreements each year, many have no significant impact on international relations. This dissertation demonstrates that a constructivist approach explains the maintenance of international agreements better than realism or liberalism. I show the importance of language in explaining outcomes in international relations, inspired by Ludwig Wittgenstein's concept of a language game. A four-step analytic model reveals how United States foreign policy practices create rules to maintain regional security agreements by entangling players in a particular game. The model begins with the articulation of a new set of rules in an international agreement. Actors then create a site at which to implement the rules by deploying resources. Third, actors develop a common language as they come to play a new game at the site. Finally, actors find themselves entangled in the rules of this new game, creating a new security dynamic that maintains the original agreement. Three cases reveal the usefulness of the model. The Israel Lebanon Monitoring Group (ILMG) established a set of rules governing the conflict between Israeli and Hezballah in southern Lebanon. The Joint Contact Team Program (JCTP) spreads the rules of European security based on democratic control over the military and shared values to former communist states. The Korean Peninsula Energy Development Organization (KEDO) establishes rules of nuclear cooperation on the Korean Peninsula as a first diplomatic contact between the United States and North Korea. This investigation reveals the power of the United States to create international rules by showing that language itself is the power that makes the state practices that constitute international relations possible. The power of language is the power to create, define, and allow. It is the power of agency. The model shows how agency emerges when existing rules and language games intersect each other in new ways, offering a moment of contingency for actors to choose and creatively use language. US foreign policy is one source of agency in the international system, allowing the United States to shape the international system by creating rules through the strategic use of language.
Fenice rossa: così rinasce il litio dalle stelle
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2021

In alcune specifiche fasi evolutive le stelle giganti producono il litio, mentre si riteneva che in queste stesse fasi venisse sistematicamente distrutto. Grazie ai dati della campagna osservativa Gaia-Eso è ora possibile aggiungere un nuovo tassello al cosiddetto “dilemma del litio”, uno fra gli elementi più studiati in astrofisica. I risultati in uno studio guidato da Laura Magrini dell’Inaf di Arcetri pubblicato su Astronomy & Astrophysics
Imaging nano-scale electronic inhomogeneity in lightly doped Mott insulator Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
Creators: name: Kohsaka, Y.
name: Iwaya, K.
name: Satow, S.
name: Hanaguri, T.
name: Azuma, M.
name: Takano, M.
name: Takagi, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The spatial variation of electronic states was imaged in the lightly doped Mott insulator Ca_{2-x}Na_{x}CuO_{2}Cl_{2} using scanning tunneling microscopy / spectroscopy (STM/STS). We observed nano-scale domains with a high local density of states within an insulating background. The observed domains have a characteristic length scale of 2 nm (~4-5a, a:lattice constant) with preferred orientations along the tetragonal [100] direction. We argue that such spatially inhomogeneous electronic states are inherent to slightly doped Mott insulators and play an important role for the insulator to metal transition.
description: To be published in Phys. Rev. Lett
Mattoncino su mattoncino, la storia fra Nasa e Lego
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

La Nasa e il Lego Group vantano una lunga storia di collaborazione in progetti che appassionano da sempre sia grandi che piccini, alimentando l'interesse per le discipline Stem e per l’esplorazione spaziale. Riproduzioni di satelliti, lanciatori, rover marziani, così come la campagna “Name the rovers”, che ha portato al battesimo di Spirit e Opportunity. Fino ad arrivare ad Artemis e al gruppo di “astronauti” di plastica che verranno ospitati nella capsula Orion
Constructing security: The power of language in United States foreign policy
Creators: name: Howard, Peter Max
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 48
subject: Law and legal studies
classificationCode: 4803
subject: International and comparative law

description: Though the United States enters numerous international agreements each year, many have no significant impact on international relations. This dissertation demonstrates that a constructivist approach explains the maintenance of international agreements better than realism or liberalism. I show the importance of language in explaining outcomes in international relations, inspired by Ludwig Wittgenstein's concept of a language game. A four-step analytic model reveals how United States foreign policy practices create rules to maintain regional security agreements by entangling players in a particular game. The model begins with the articulation of a new set of rules in an international agreement. Actors then create a site at which to implement the rules by deploying resources. Third, actors develop a common language as they come to play a new game at the site. Finally, actors find themselves entangled in the rules of this new game, creating a new security dynamic that maintains the original agreement. Three cases reveal the usefulness of the model. The Israel Lebanon Monitoring Group (ILMG) established a set of rules governing the conflict between Israeli and Hezballah in southern Lebanon. The Joint Contact Team Program (JCTP) spreads the rules of European security based on democratic control over the military and shared values to former communist states. The Korean Peninsula Energy Development Organization (KEDO) establishes rules of nuclear cooperation on the Korean Peninsula as a first diplomatic contact between the United States and North Korea. This investigation reveals the power of the United States to create international rules by showing that language itself is the power that makes the state practices that constitute international relations possible. The power of language is the power to create, define, and allow. It is the power of agency. The model shows how agency emerges when existing rules and language games intersect each other in new ways, offering a moment of contingency for actors to choose and creatively use language. US foreign policy is one source of agency in the international system, allowing the United States to shape the international system by creating rules through the strategic use of language.
Stability of Semi-Implicit and Iterative Centred-Implicit Time Discretizations for Various Equation Systems Used in NWP
Creators: name: Benard, Pierre
Publisher: name: arXiv
Year: 2003
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The stability of classical semi-implicit scheme, and some more advanced iterative schemes recently proposed for Numerical Weather Prediction (NWP) purpose is examined. In all these schemes, the solution of the centred-implicit non-linear equation is approached by an iterative fixed-point algorithm, preconditioned by a simple, constant in time, linear operator. A general methodology for assessing analytically the stability of these schemes on canonical problems for a vertically unbounded atmosphere is presented. The proposed method is valid for all the equation systems usually employed in NWP. However, as in earlier studies, the method can be applied only in simplified meteorological contexts, thus overestimating the actual stability that would occur in more realistic meteorological contexts. The analysis is performed in the spatially-continuous framework, hence allowing to eliminate the spatial-discretisation or the boundary conditions as possible causes of the fundamental instabilities linked to the time-scheme itself. The general method is then shown concretely to apply to various time-discretisation schemes and equation-systems (namely shallow-water, and fully compressible Euler equations). Analytical results found in the literature are recovered from the proposed method, and some original results are presented.
description: Accepted in Monthly Weather Review 28 March 2003. Permission to place a copy of this work on this server has been provided by the American Meteorological Society. The AMS does not guarantee that the copy provided here is an accurate copy of the published work
An inquiry into the possible tradeoffs between antitrust enforcement and *employment
Creators: name: Pho, Van Hong
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 35
subject: Commerce, management, tourism and services
classificationCode: 38
subject: Economics

description: This research investigates the impact of U.S. federal antitrust enforcement on employment opportunities and wages for U.S. manufacturing workers from 1979--1999. This study is conducted on two levels. First, a case study approach is used to determine direct and deterrent effects from antitrust indictments on economic activities for six firms. Second, panel data analysis is employed to examine antitrust enforcement effects on industry employment (2-digit SIC code level) and wages for seven occupation groups. Antitrust law enforcement potentially can result in wage and job losses if generally efficient business practices are disrupted. While the aim of antitrust is not to attack efficiency, antitrust indictments may lead to negative labor market effects. A theory-based relationship between employment and antitrust enforcement is developed. Then, a panel dataset was created from the Trade Regulation Reporter, Annual Survey of Manufactures, Current Population Survey, and National Income and Product Accounts. Ten models are estimated using GLS procedures to control for nonspherical disturbances in the data. The resounding theme from these analyses is that antitrust enforcement does affect the labor market. A pattern emerging from the case studies is an immediate rise and subsequent decline in competitor employment once the antitrust indictment is issued. Corresponding with the results from the industry analysis, this could be an outcome of the competing firm maneuvering to improve its market position and competitiveness. The studies also provided evidence of lagged adverse employment effects occurring during and at the conclusion of the antitrust case. The industry analyses indicate that antitrust enforcement generally benefits employment. Employment increases persist two years beyond the initial indictment. However, the rate of increase does not. In most cases, employment growth surges one year after the indictment, but tapers off considerably. Additionally, high-wage workers who tend to possess specific human capital benefit the most from antitrust enforcement in terms of quantity and price, whereas low-wage workers who embody general human capital benefit the least. In summary, firms respond to antitrust enforcement in ways that ultimately affect both labor quantity and price. This dissertation provides evidence of employment and wage consequences derived from government intervention in the marketplace.
Dynamic Hubbard Model: Effect of Finite Boson Frequency
Creators: name: Marsiglio, F.
name: Teshima, R.
name: Hirsch, J. E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Dynamic Hubbard models describe coupling of a boson degree of freedom to the on-site electronic double occupancy. In the limit of infinite boson frequency this coupling gives rise to a correlated hopping term in the effective Hamiltonian and to superconductivity when the Fermi level is near the top of the band. Here we study the effect of finite boson frequency through a generalized Lang-Firsov transformation and a high frequency expansion. It is found that finite frequency enhances the tendency to superconductivity in this model.
description: 8 pages 3 figures
Wave-Packet Surface Propagation for Light-Induced Molecular Dissociation
Creators: name: Pan, Shengzhe
name: Zhang, Zhaohan
name: Hu, Chenxi
name: Lu, Peifen
name: Gong, Xiaochun
name: Gong, Ruolin
name: Zhang, Wenbin
name: Zhou, Lianrong
name: Lu, Chenxu
name: Shi, Menghang
name: Jiang, Zhejun
name: Ni, Hongcheng
name: He, Feng
name: Wu, Jian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recent advances in laser technology have enabled tremendous progress in photochemistry, at the heart of which is the breaking and formation of chemical bonds. Such progress has been greatly facilitated by the development of accurate quantum-mechanical simulation method, which, however, does not necessarily accompany clear dynamical scenarios and is rather often a black box, other than being computationally heavy. Here, we develop a wave-packet surface propagation (WASP) approach to describe the molecular bond-breaking dynamics from a hybrid quantum-classical perspective. Via the introduction of quantum elements including state transitions and phase accumulations to the Newtonian propagation of the nuclear wave-packet, the WASP approach naturally comes with intuitive physical scenarios and accuracies. It is carefully benchmarked with the H2+ molecule and is shown to be capable of precisely reproducing experimental observations. The WASP method is promising for the intuitive visualization of strong-field molecular dynamics and is straightforwardly extensible toward complex molecules.
description: 24 pages, 4 figures
Effective Floquet Hamiltonians for periodically-driven twisted bilayer graphene
Creators: name: Vogl, Michael
name: Rodriguez-Vega, Martin
name: Fiete, Gregory A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive effective Floquet Hamiltonians for twisted bilayer graphene driven by circularly polarized light in two different regimes beyond the weak-drive, high frequency regime. First, we consider a driving protocol relevant for experiments with frequencies smaller than the bandwidth and weak amplitudes and derive an effective Hamiltonian, which through a symmetry analysis, provides analytical insight into the rich effects of the drive. We find that circularly polarized light at low frequencies can selectively decrease the strength of AA-type interlayer hopping while leaving the AB-type unaffected. Then, we consider the intermediate frequency, and intermediate-strength drive regime. We provide a compact and accurate effective Hamiltonian which we compare with the Van Vleck expansion and demonstrate that it provides a significantly improved representation of the exact quasienergies. Finally, we discuss the effect of the drive on the symmetries, Fermi velocity and the gap of the Floquet flat bands.
Random tilings of high symmetry: I. Mean-field theory
Creators: name: Destainville, N.
name: Widom, M.
name: Mosseri, R.
name: Bailly, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study random tiling models in the limit of high rotational symmetry. In this limit a mean-field theory yields reasonable predictions for the configurational entropy of free boundary rhombus tilings in two dimensions. We base our mean-field theory on an iterative tiling construction inspired by the work of de Bruijn. In addition to the entropy, we consider correlation functions, phason elasticity and the thermodynamic limit. Tilings of dimension other than two are considered briefly.
description: Published version. Some discussions have been simplified
Modified Measures as an Effective Theory for Causal Fermion Systems
Creators: name: Finster, Felix
name: Guendelman, Eduardo
name: Paganini, Claudio F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We compare the structures of the theory of causal fermion systems (CFS), an approach to unify quantum theory with general relativity (GR), with those of modified measure theories (MMT), which are a set of modified gravity theories. Classical spacetimes with MMT can be obtained as the continuum limit of a CFS. This suggests that MMT could serve as effective descriptions of modifications to GR implied by CFS. The goal is to lay the foundation for future research on exploring which MMTs are consistent with the causal action principle of CFS.
description: 25 pages, LaTeX, 3 figures (published version)
Piccolo buco nero nella Grande Nube di Magellano
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2021

Scoperto grazie al metodo delle velocità radiali, è il primo buco nero extragalattico mai trovato in un giovane ammasso stellare. «Come Sherlock Holmes rintraccia una banda criminale sfruttandone i passi falsi, abbiamo esaminato ogni singola stella con una lente d’ingrandimento in mano», spiega la prima autrice dello studio, Sara Saracino della Liverpool John Moores University. Nel team che ha firmato la scoperta c’è anche Mario Guarcello dell’Inaf di Palermo
An inquiry into the possible tradeoffs between antitrust enforcement and *employment
Creators: name: Pho, Van Hong
Publisher: name: American University
Year: 2023

description: This research investigates the impact of U.S. federal antitrust enforcement on employment opportunities and wages for U.S. manufacturing workers from 1979--1999. This study is conducted on two levels. First, a case study approach is used to determine direct and deterrent effects from antitrust indictments on economic activities for six firms. Second, panel data analysis is employed to examine antitrust enforcement effects on industry employment (2-digit SIC code level) and wages for seven occupation groups. Antitrust law enforcement potentially can result in wage and job losses if generally efficient business practices are disrupted. While the aim of antitrust is not to attack efficiency, antitrust indictments may lead to negative labor market effects. A theory-based relationship between employment and antitrust enforcement is developed. Then, a panel dataset was created from the Trade Regulation Reporter, Annual Survey of Manufactures, Current Population Survey, and National Income and Product Accounts. Ten models are estimated using GLS procedures to control for nonspherical disturbances in the data. The resounding theme from these analyses is that antitrust enforcement does affect the labor market. A pattern emerging from the case studies is an immediate rise and subsequent decline in competitor employment once the antitrust indictment is issued. Corresponding with the results from the industry analysis, this could be an outcome of the competing firm maneuvering to improve its market position and competitiveness. The studies also provided evidence of lagged adverse employment effects occurring during and at the conclusion of the antitrust case. The industry analyses indicate that antitrust enforcement generally benefits employment. Employment increases persist two years beyond the initial indictment. However, the rate of increase does not. In most cases, employment growth surges one year after the indictment, but tapers off considerably. Additionally, high-wage workers who tend to possess specific human capital benefit the most from antitrust enforcement in terms of quantity and price, whereas low-wage workers who embody general human capital benefit the least. In summary, firms respond to antitrust enforcement in ways that ultimately affect both labor quantity and price. This dissertation provides evidence of employment and wage consequences derived from government intervention in the marketplace.
Long-term effects of temperature on isoprene emissions from aspen leaves
Creators: name: Johnson, Theresa
name: Harley, Peter
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 1999

Isoprene emissions from vegetation significantly contribute to tropospheric chemistry. The oxidation of isoprene in the troposphere can lead to the formation of pollutants such as tropospheric ozone (0â) , carbon monoxide, and organic peroxides. In order to better predict future isoprene emissions, it is necessary to create accurate models that incorporate all the parameters that control isoprene emission capacity. The shortterm effects of temperature on isoprene emissions have been well studied, but the longterm effects are still unclear. We measured the long-term effects of temperature on isoprene emission capacity from aspen leaves in the field between July 7 and July 30, 1999. We measured base emission rate (BER), defined as the emiss ion rate at of 25Â°C and 1000 PAR, three times a week. Although a preliminary analysis of the data shows that there is only a slight correlation between previous day's temperature and change in the BER, the closest association between isoprene emissions and temperature occurred within the same day that the data was collected. The implications for model parameters are that long-term effects should be incorporated into the model, but they may not be on the scale of days. Long-term effects of temperature on the order of hours seems to be more appropriate.
MeerKat svela i segreti di 115 ammassi di galassie
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2021

Un team di 40 scienziati sudafricani e di vari Paesi nel mondo, tra cui alcuni dell’Istituto nazionale di astrofisica, ha analizzato una grande quantità di dati raccolta con le antenne MeerKat scoprendo numerose nuove sorgenti radio in diversi ammassi di galassie. Si tratta della prima survey di ammassi di galassie effettuata con le antenne sudafricane su un grande campione. Tiziana Venturi (Inaf): «L’elevata sensibilità delle nuove osservazioni effettuate con MeerKat ha permesso di ottenere immagini di emissioni radio di qualità stupefacente». I risultati saranno pubblicati su A&A
Monthly variability of latent heat release as a source of solar tides in the upper atmosphere
Creators: name: Hudman, Rynda
name: Hagan, Maura
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 1999

Solar tides are global scale oscillations with periods that are harmonics of the solar day. We explored latent heat release as a tropospheric source of solar tides. Using seven years of satellite cloud imagery data, we deduced monthly latent heating rates between the latitudes Âą40Â°. We used these rates to force the global-scale wave model (GSWM) (Hagan et al., 1999), which examines tidal evolution throughout the atmosphere. We found that latent heat release from deep convective activity can spark tides, which contribute significantly to the overall diurnal tide seen in the mesosphere and lower thennosphere (MLT). Perturbations of up to 28 ms-1 in zonal winds, 20 ms-1 in meridional winds and 14 K in temperature can be attributed to latent heat release. Diurnal rainfall rates and thus, latent heating, vary monthly, with maxima following the intertropical convergene zone (1TCZ) locating primarily over the continents. Unlike the diurnal surface pressure oscillation, this diurnal tide of the MLT does not follow the same spatial monthly variability as its driving force, latent heat release. This is probably due to the distortion of the wave as it travels through the intermittent regions. We see large monthly variation in GSWM results, but consistent maxima along the equator. Wave number dependence varies greatly with time.
Additional file 1 of HIV-exposed infant follow-up in Mozambique: formative research findings for the design of a cluster randomized controlled trial to improve testing and ART initiation
Creators: name: Vieira, Lúcia
name: Mahumane, Arlete Miloque
name: Napua, Manuel
name: Falume Chale
name: Manuel, João Luís
name: Cowan, Jessica Greenberg
name: Sherr, Kenneth
name: Chapman, Rachel R.
name: Pfeiffer, James T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Agregated_data_tables.
Propagation of Extremely-high Energy Leptons in the Earth: Implications to their detection by the IceCube Neutrino Telescope
Creators: name: Yoshida, Shigeru
name: Ishibashi, Rie
name: Miyamoto, Hiroko
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results of numerical calculations on propagation of Extremely-high energy (EHE) neutrinos and charged leptons in the earth for trajectories in all phase space of nadir angles. Our comprehensive calculation has shown that not only the secondary produced muons but also taus survive without decaying in energy range of 10PeV-100PeV with intensity approximately three orders of magnitude lower than the neutrino flux regardless of EHE neutrino production models. They form detectable horizontal or downgoing events in a 1km$^3$ underground neutrino telescope such as the IceCube detector. The event rate and the resultant detectability of EHE signals in comparison with the atmospheric muon background are also evaluated. The 90 % C.L. upperlimit of EHE neutrino fluxes by a km$^2$ detection area would be placed at $E^2dF/dE \simeq 3.7\times 10^{-8}$ GeV/cm$^2$ sec sr for $ν_μ$ and $4.6\times 10^{-8}$ for $ν_τ$ with energies of $10^9$ GeV in absence of signals with energy-loss in a detection volume of 10PeV or greater.
description: 10 pages, 10 figures. The version accepted for publication in Physical Review D
Euglossa (Euglossa) viridissima Firese 1899
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy

description: Euglossa (Euglossa) viridissima Firese, 1899
[Lectotype: NMW; ♂ Mexico]
Euglossa viridissima was recently reported for the first time in BCP (Brindis et al., 2018). Within the BCP, this neotropical species has been exclusively found in the Sacrocauluscent Shrubland within the CTR. The BBPT collected eight females in Todos Santos in 2020 and 2021. This additional sampling supports the hypothesis that populations of E. viridissima are well established in the BCP, as previously suggested by Falcón-Brindis et al. (2018). Voucher specimens are in the MABC (4 ♀), and ECOAB (4 ♀). See fig. 91.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 154, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
The Munich Near--Infrared Cluster Survey (MUNICS) -- VI. The stellar masses of K-band selected field galaxies to z ~ 1.2
Creators: name: Drory, N.
name: Bender, R.
name: Feulner, G.
name: Hopp, U.
name: Maraston, C.
name: Snigula, J.
name: Hill, G. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a measurement of the evolution of the stellar mass function in four redshift bins at 0.4 < z < 1.2 using a sample of more than 5000 K-selected galaxies drawn from the MUNICS dataset. Our data cover the stellar mass range 10^10 < M/Msun < 10^12. We derive K-band mass-to-light ratios by fitting a grid of composite stellar population models of varying star formation history, age, and dust extinction to BVRIJK photometry. We discuss the evolution of the average mass-to-light ratio as a function of galaxy stellar mass in the K-band and in the B-band. We compare our stellar mass function at z > 0 to estimates obtained similarly at z=0. We find that the mass-to-light ratios in the K-band decline with redshift. This decline is similar for all stellar masses above $10^10 Msun. Lower mass galaxies have lower mass-to-light ratios at all redshifts. The stellar mass function evolves significantly to z = 1.2. The total normalization decreases by a factor of ~2, the characteristic mass (the knee) shifts towards lower masses and the bright end therefore steepens with redshift. The amount of number density evolution is a strong function of stellar mass, with more massive systems showing faster evolution than less massive systems. We discuss the total stellar mass density of the universe and compare our results to the values from the literature both at lower and higher redshift. We find that the stellar mass density at z~1 is roughly 50% of the local value. Our results imply that the mass assembly of galaxies continues well after $z \sim 1$. Our data favor a scenario in which the growth of the most massive galaxies is dominated by accretion and merging rather than star formation which plays a larger role in the growth of less massive systems.
description: Accepted for publication in ApJ, issues of style and typos corrected to match printed version (proofs)
Changes in Northern Hemisphere storm tracks in the NCAR Climate System Model (CSM): Control run vs. doubled CO₂
Creators: name: Dunn, Michelle
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 1999

Using the NCAR Climate System Model (CSM), changes in Northern Hemisphere storm tracks are analyzed between a control run and a doubled CO₂ run. Global fields of temperature, wind, vorticity, and precipitation are used to characterize location, seasonality, and intensity of storm tracks. Compared to the control CO₂ run, the storm track in the doubled CO₂ run showed an increase in vorticity variabi lity during winter (DJF), and a decrease during summer (JJA). There was also a downstream shift of the maximum vorticity variability in winter. The summer showed little change in strucrure and magnitude of vorticity variability. In winter, there was an increased concentration in precipitation within the storm tracks and a decreased coverage of precipitation in areas surrounding the storm tracks. Implications for climate change are discussed.
Probing $eμ$ flavor-violating ALP at Belle II
Creators: name: Endo, Motoi
name: Iguro, Syuhei
name: Kitahara, Teppei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recently, it was pointed out that the electron and muon g-2 discrepancies can be explained simultaneously by a flavor-violating axion-like particle (ALP). We show that the parameter regions favored by the muon g-2 are already excluded by the muonium-antimuonium oscillation bound. In contrast, those for the electron g-2 can be consistent with this bound when the ALP is heavier than 1.5 GeV. We propose to search for a signature of the same-sign and same-flavor lepton pairs and the forward-backward muon asymmetry to test the model at the Belle II experiment.
description: 22 pages, 5 figures, JHEP version
Information Recovery-Driven Deep Incomplete Multiview Clustering Network
Creators: name: Liu, Chengliang
name: Wen, Jie
name: Wu, Zhihao
name: Luo, Xiaoling
name: Huang, Chao
name: Xu, Yong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Incomplete multi-view clustering is a hot and emerging topic. It is well known that unavoidable data incompleteness greatly weakens the effective information of multi-view data. To date, existing incomplete multi-view clustering methods usually bypass unavailable views according to prior missing information, which is considered as a second-best scheme based on evasion. Other methods that attempt to recover missing information are mostly applicable to specific two-view datasets. To handle these problems, in this paper, we propose an information recovery-driven deep incomplete multi-view clustering network, termed as RecFormer. Concretely, a two-stage autoencoder network with the self-attention structure is built to synchronously extract high-level semantic representations of multiple views and recover the missing data. Besides, we develop a recurrent graph reconstruction mechanism that cleverly leverages the restored views to promote the representation learning and the further data reconstruction. Visualization of recovery results are given and sufficient experimental results confirm that our RecFormer has obvious advantages over other top methods.
description: Accepted by TNNLS 2023. Please contact me if you have any questions: liucl1996@163.com. The code is available at: https://github.com/justsmart/RecFormer
Additional file 3 of A blended learning training programme for health information providers to enhance implementation of the Guideline Evidence-based Health Information: development and qualitative pilot study
Creators: name: Hinneburg, Jana
name: Lühnen, Julia
name: Steckelberg, Anke
name: Berger-Höger, Birte
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Coding guideline.
Ecco Janus, fotograferà “i figli e gli amori” di Giove
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2021

La camera ad alta risoluzione è pronta a lasciare gli stabilimenti di Leonardo di Campi Bisenzio, in provincia di Firenze, per essere trasferita al sito di integrazione con il satellite Juice dell’Esa, presso la sede di Airbus di Tolosa (Francia). Vincenzo Della Corte (Inaf): «Juice orbiterà per tre anni nel sistema di Giove, dove corpi e satelliti hanno i nomi di amanti e discendenti del dio»
Characterization of photocycloaddition products in the cyclobutane family using mass spectrometry and nuclear magnetic resonance
Creators: name: Powe, Aleeta Mattel
Publisher: name: American University
Year: 2023

description: Photocycloaddition products receive much attention and are of great utility in capturing reaction intermediates and preparing natural compounds. A collection of compounds containing a cyclobutane ring was studied. This collection, produced previously in our laboratory, was divided into classes based upon putative structures and synthetic pathways. Three groups (tetrasubstituted cyclobutane derivatives, fused-ring systems and cyclo-octatetrane derivatives) having quite uncommon characteristics and supposed structures were made. The behaviors of these previously-made photocycloaddition products of similar structure were investigated using mass spectrometry, proton- (1H-), carbon- (13C-) and 2D-NMR techniques. Additionally, UV irradiation experiments were conducted to produce more photoadducts. Finally, the information acquired from the characterizations of the previously-made products was applied to identify the unknown components in the reaction mixtures of the irradiation experiments. Positive identification of the structures of these separate classes of photocycloaddition products supports a discussion of mechanistic pathways to their formation.
On Two-Loop Effective Action of 2D Sigma Model
Creators: name: Akacevich, P. V.
name: Ivanov, A. V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we study two-loop contribution to the effective action of a two-dimensional sigma model. We derive a new formula, which can be applicable to a regularization of general type. As examples, we obtain known results for dimensional regularization and investigate new types of cutoff one. Also, we discuss non-local contributions and restrictions on the regularization.
description: LaTeX, 10 pages, 3 figures
Conditional tornado probabilities from Ruc-2 forecasts
Creators: name: Church, Andrew
name: Hamill, Thomas
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 1999

Several previous studies have established statistical relationships between tornadic weather and environmental conditions by associating severe weather reports with rawinsonde observations. Here, we seek (1) to determine weather similar relationships hold when severe weather reports are associated with gridded short -term numerical forecasts, and (2) to develop and demonstrate a probabilistic model to forecast the likelihood a thunderstorm will be tornadic. Severe weather reports and lightning network data from 1 January 1999 through 29 June 1999 were used to classifY the weather at a set of Rapid-Update Cycle (RUC-2) grid points into the mutually exclusive and collectively exhaustive events representing increasing severity to the weather. The events were no significant weather, thunderstorms, severe thunderstorms, or tornadoes. RUC-2 forecast convectively available potential energy (CAPE), helicity, and 0-6 km wind shear from these same dates were associated with this gridded classification 0 the weather. We generally found similar relationships between environmental parameters and storm severity as others have previously documented. Our Bayesian probabilistic model forecasts the likelihood of that a thunderstorm will be tornadic given a certain value of CAPE and helicity (or CAPE and wind shear). This model is shown to do a reasonable job of locating high-threat areas many hours in advance ofthe severe weather and may be of use as a forecast tool.
Ritorno alla Luna, si slitta al 2025
Creators: Gloria Nobile
Publisher: name: Media Inaf
Year: 2021

Ora è ufficiale: rimandato il rendez-vous con il nostro satellite, inizialmente previsto per la fine del 2024. A causa delle difficoltà tecniche ed economiche, della pandemia e della causa legale con Blue Origin, l’atteso allunaggio avverrà con la missione Artemis III non prima del 2025, fa sapere l’amministratore della Nasa Bill Nelson