cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Solar axions cannot explain the XENON1T excess
Creators: name: Di Luzio, Luca
name: Fedele, Marco
name: Giannotti, Maurizio
name: Mescia, Federico
name: Nardi, Enrico
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: axion: solar
measure: ratio
star
cluster
flux

description: We argue that the interpretation in terms of solar axions of the recent XENON1T excess is not tenable when confronted with astrophysical observations of stellar evolution. We discuss the reasons why the emission of a flux of solar axions sufficiently intense to explain the anomalous data would radically alter the distribution of certain type of stars in the color-magnitude diagram in first place, and would also clash with a certain number of other astrophysical observables. Quantitatively, the significance of the discrepancy ranges from $3.3\sigma$ for the rate of period change of pulsating White Dwarfs, and exceedes $19\sigma$ for the $R$-parameter, which measures the ratio between the numbers of Horizontal Branch and Red Giant Branch stars in globular clusters.
YENGIL SANOATNI HUDUDIY RIVOJLANTIRISHNING USTUVOR OMILLARINI BAHOLASH TIZIMINI TAKOMILLASHTIRISH
Creators: name: Eshonqulov, Javohir
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada omilning yuqori ta'sir darajasi saqlanib qoladigan, yoki ortib boradigan ustuvor omillarni "Hard" guruhli, aksincha, pasayish kuzatiladigan omillarni "Soft" guruhli omillarga ajratilib o'rganilgan.
Time precedence of firearm ownership and homicides
Creators: name: Morral, Andrew
name: Agniel, Dennis
name: Schell, Terry
name: Smart, Rosanna
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: Criminology
subject: FOS: Law
subject: Epidemiology
subject: Community Health and Preventive Medicine
subject: Social and Behavioral Sciences
subject: Sociology
subject: FOS: Sociology

description: Research aim: Estimate the association between firearm ownership and firearm homicide, across population strata and over time. Many studies have demonstrated an association between firearms ownership and mortality (by suicide or homicide), but the public health implications of this association are not clear. The implications would be quite different if the association occurs because those who are at high risk of these forms of mortality subsequently acquire guns, versus if the ownership of firearms itself confers additional mortality risk. As we discuss in our recent reviews of this literature, the existing literature lacks convincing evidence about the temporal sequence of the relationship between risk for these forms of mortality and firearm ownership (Smart et al., 2020). In this aim we investigate the possibility that both effects may be present: populations already at risk for violent victimization or dying by suicide may be more likely to acquire firearms in the future, and those owning firearms may be more likely to die by suicide or violent crime. Further, we explore whether disparities in firearm mortality may be associated with differences in the dynamics of firearm ownership and mortality over time.
Porous Liquids: Design, synthesis, and applicability
Creators: name: MAHDAVI, HAMIDREZA
Publisher: name: Monash University
Year: 2022
Subjects: Inorganic materials (incl. nanomaterials)

description: Porous liquids (PLs) are a new type of materials that mix the properties of fluids such as fluidity and speedy mass transfer with those of porous solids which includes permanent porosity and molecular sieving. They attract interests from both academia and industry due to their exceptional physicochemical properties. Since the first reports of porous liquids in recent years, intense research effort has been put into this new class of materials. PLs have applications in homogeneous catalysis, as novel reaction media, and in size-selective gas adsorption.
$B$ anomalies under the lens of electroweak precision
Creators: name: Alasfar, Lina
name: Azatov, Aleksandr
name: De Blas, Jorge
name: Paul, Ayan
name: Valli, Mauro
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: The measurements carried out at LEP and SLC projected us into the precision era of electroweak physics. This has also been relevant in the theoretical interpretation of LHCb and Belle measurements of rare $B$ semileptonic decays, paving the road for new physics with the inference of lepton universality violation in $R_{K^{(*)}}$ ratios. The simplest explanation of these flavour anomalies -- sizeable one-loop contributions respecting Minimal Flavour Violation -- is currently disfavoured by electroweak precision data. In this work, we discuss how to completely relieve the present tension between electroweak constraints and one-loop minimal flavour violating solutions to $R_{K^{(*)}}$. We determine the correlations in the Standard Model Effective Field Theory that highlight the existence of such a possibility. Then, we consider minimal extensions of the Standard Model where our effective-field-theory picture can be realized. We discuss how these solutions to $b \to s \ell \ell$ anomalies, respecting electroweak precision and without any new source of flavour violation, may point to the existence of a $Z^{\prime}$ boson at around the TeV scale, within the discovery potential of LHC, or to leptoquark scenarios.
Anisotropic flow and flow fluctuations of identified hadrons in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The first measurements of elliptic flow of $π^\pm$, ${\rm K}^\pm$, p+$\overline{\rm p}$, ${\rm K_{S}^0}$, $Λ$+$\overlineΛ$, $ϕ$, $Ξ^-$+$Ξ^+$, and $Ω^-$+$Ω^+$ using multiparticle cumulants in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV are presented. Results obtained with two- ($v_2\{2\}$) and four-particle cumulants ($v_2\{4\}$) are shown as a function of transverse momentum, $p_{\rm T}$, for various collision centrality intervals. Combining the data for both $v_2\{2\}$ and $v_2\{4\}$ also allows us to report the first measurements of the mean elliptic flow, elliptic flow fluctuations, and relative elliptic flow fluctuations for various hadron species. These observables probe the event-by-event eccentricity fluctuations in the initial state and the contributions from the dynamic evolution of the expanding quark-gluon plasma. The characteristic features observed in previous $p_{\rm T}$-differential anisotropic flow measurements for identified hadrons with two-particle correlations, namely the mass ordering at low $p_{\rm T}$ and the approximate scaling with the number of constituent quarks at intermediate $p_{\rm T}$, are similarly present in the four-particle correlations and the combinations of $v_2\{2\}$ and $v_2\{4\}$. In addition, a particle species dependence of flow fluctuations is observed that could indicate a significant contribution from final state hadronic interactions. The comparison between experimental measurements and CoLBT model calculations, which combine the various physics processes of hydrodynamics, quark coalescence, and jet fragmentation, illustrates their importance over a wide $p_{\rm T}$ range.
description: 29 pages, 12 captioned figures, 3 tables, authors from page 24, published version, figures at http://alice-publications.web.cern.ch/node/8262
Advanced Separators in Electrochemical Energy Storage Systems
Creators: name: GHASEMIESTAHBANATI, EHSAN
Publisher: name: Monash University
Year: 2022
Subjects: Inorganic materials (incl. nanomaterials)
Separation science
Electrochemical energy storage and conversion

description: This dissertation provides material and membrane solutions to tackle the common crossover contamination across battery separators. We believe that the porous, acid/base resistant, and functionalizable structure of the proposed porous materials and polymers indicate a new pathway for more investigation of such advanced energy materials towards further commercial adoption of next-generation battery technologies depend less on critical battery materials. This can eventually lead to higher utilization and reliability of renewables so as to mitigate carbon emissions and global warming.
Agrypnus molestus Hayek 1973
Creators: name: Kotru, Akash
name: Chandran, Nithya
name: Dubey, Anil Kumar
name: Prosvirov, Alexander S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Agrypnus
Agrypnus molestus

description: Agrypnus molestus (Candèze, 1857)
Lacon molestus Candèze, 1857: 120.
Adelocera molestus (Candèze) Fleutiaux, 1926: 96.
Agrypnus molestus (Candèze) Hayek, 1973: 184.
Type depository. Lectotype (BMNH).
Type locality. “Dinapore, aux Indes-Orientales”.
Distribution. India: Bihar (Chakraborty, Chakrabarti, 2000).
Literature. Candèze (1857: 120): original description; Fleutiaux (1926: 96): combination; Hayek (1973: 184): combination; Chakraborty and Chakrabarti (2000: 78): catalogue.
description: Published as part of Kotru, Akash, Chandran, Nithya, Dubey, Anil Kumar & Prosvirov, Alexander S., 2025, A catalogue of Indian Agrypninae Candèze, 1857 (Coleoptera: Elateridae), pp. 1-66 in Zootaxa 5614 (1) on page 20, DOI: 10.11646/zootaxa.5614.1.1, http://zenodo.org/record/15217075
Polynomials in $\mathbb{F}_p[x]$ which commute under composition
Creators: name: Hatley, Jeffrey
name: Teplitskiy, Mayah
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11T06, 05E99

description: Let $\mathbb{F}$ be a finite field and let $f$ be a linear polynomial in $\mathbb{F}[x]$. We investigate the number of polynomials of degree $d$ which commute with $f$ under composition. In so doing, we rediscover a result of Park, but with a conceptually simpler proof.
description: Final version, which appears in PUMP Journal of Undergraduate Research. (Note: There was a small typo in the published version of Section 7, Numerical Example #1 which has been corrected in this version
On the equivalence of modes of convergence for log-concave measures
Creators: name: Meckes, Elizabeth S.
name: Meckes, Mark W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: An important theme in recent work in asymptotic geometric analysis is that many classical implications between different types of geometric or functional inequalities can be reversed in the presence of convexity assumptions. In this note, we explore the extent to which different notions of distance between probability measures are comparable for log-concave distributions. Our results imply that weak convergence of isotropic log-concave distributions is equivalent to convergence in total variation, and is further equivalent to convergence in relative entropy when the limit measure is Gaussian.
description: v3: Minor tweak in exposition. To appear in GAFA seminar notes
Precise dark matter relic abundance in decoupled sectors
Creators: name: Bringmann, Torsten
name: Depta, Paul Frederik
name: Hufnagel, Marco
name: Schmidt-Hoberg, Kai
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: Dark matter (DM) as a thermal relic of the primordial plasma is increasingly pressured by direct and indirect searches, while the same production mechanism in a decoupled sector is much less constrained. We extend the standard treatment of the freeze-out process to such scenarios and perform precision calculations of the annihilation cross section required to match the observed DM abundance. We demonstrate that the difference to the canonical value is generally sizeable, and can reach orders of magnitude. Our results directly impact the interpretation of DM searches in hidden sector scenarios.
Challenges of D=6 N=(1,1) SYM Theory
Creators: name: Bork, L. V.
name: Kazakov, D. I.
name: Vlasenko, D. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Maximally supersymmetric Yang-Mills theories have several remarkable properties, among which are the cancellation of UV divergences, factorization of higher loop corrections and possible integrability. Much attention has been attracted to the N=4 D=4 SYM theory. The N=(1,1) D=6 SYM theory possesses similar properties but is nonrenomalizable and serves as a toy model for supergravity. We consider the on-shell four point scattering amplitude and analyze its perturbative expansion within the spin-helicity and superspace formalism. The integrands of the resulting diagrams coincide with those of the N=4 D=4 SYM and obey the dual conformal invariance. Contrary to 4 dimensions, no IR divergences on mass shell appear. We calculate analytically the leading logarithmic asymptotics in all loops. Their summation leads to a Regge trajectory which is calculated exactly. The leading powers of s are calculated up to six loops. Their summation is performed numerically and leads to a smooth function of s. The leading UV divergences are calculated up to 5 loops. The result suggests the geometrical progression which ends up in a finite expression. This leads us to a radical point of view on nonrenormalizable theories.
description: 11 pages, 2 figures, Latex
Axion-mediated forces and CP violation in left-right models
Creators: name: Bertolini, Stefano
name: Di Luzio, Luca
name: Nesti, Fabrizio
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: CP: violation
model: left-right
nucleon: coupling
axion: coupling
perturbation theory: chiral
baryon: chiral

description: We compute the CP-violating (CPV) scalar axion coupling to nucleons in the framework of baryon chiral perturbation theory and we apply the results to a class of left-right symmetric models. The correlated constraints with other CPV observables show that the predicted axion nucleon coupling is within the reach of axion-mediated force experiments as ARIADNE for $M_{W_R}$ up to $1000$ TeV.
Enhancing seed germination process via the integration of megahertz acoustic waves and plasma-activated water
Creators: name: WONG, KIING SENG
Publisher: name: Monash University
Year: 2022
Subjects: Microfluidics and nanofluidics

description: In 21st century, there are mounting concerns over issues such as agricultural product shortage and food availability due to urbanisation. Seed germination is the most fundamental factor that is directly influencing agricultural production and food availability. The seed germination process depends significantly on the water absorption rate and seed biological metabolism. Therefore, my research focuses on developing an efficient technology to promote seed germination process via hybrid treatment of MHz acoustic waves and plasma-activated water. The research outcome reports that hybrid treated seeds achieved a 217% higher water absorption rate and germinate 3.5 fold faster compared to untreated seeds.
Gravitional radiation from first-order phase transitions in the presence of a fluid
Creators: name: Giblin, John T.
name: Mertens, James B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: First-order phase transitions are a source of stochastic gravitational radiation. Precision calculations of the gravitational waves emitted during these processes, sourced by both the degrees of freedom undergoing the transition and anisotropic stress of the coupled, ambient constituents, have reached an age of maturity. Here we present high-resolution numerical simulations of a scalar field coupled to a fluid and parameterize the final gravitational wave spectrum as a function of the ratio of the energies of the two sectors and the coupling between the two sectors for a set of models that represent different types of first-order phase transitions. In most cases, the field sector is the dominant source of gravitational radiation, but it is possible in certain scenarios for the fluid to have the most important contribution.
description: 11 pages, 9 figures
Convergence in distribution for subcritical 2D oriented percolation seen from its rightmost point
Creators: name: Andjel, E. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study subcritical two-dimensional oriented percolation seen from its rightmost point on the set of infinite configurations which are bounded above. This a Feller process whose state space is not compact and has no invariant measures. We prove that it converges in distribution to a measure which charges only finite configurations.
description: Published in at http://dx.doi.org/10.1214/13-AOP841 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Precision Global Determination of the $B\to X_s\gamma$ Decay Rate
Creators: name: Bernlochner, Florian U.
name: Lacker, Heiko
name: Ligeti, Zoltan
name: Stewart, Iain W.
name: Tackmann, Frank J.
name: Tackmann, Kerstin
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: We perform the first global fit to inclusive $B\to X_s\gamma$ measurements using a model-independent treatment of the nonperturbative $b$-quark distribution function, with next-to-next-to-leading logarithmic resummation and $\mathcal{O}(\alpha_s^2)$ fixed-order contributions. The normalization of the $B\to X_s\gamma$ decay rate, given by $\lvert C_7^{\rm incl} V_{tb} V_{ts}^*\rvert^2$, is sensitive to physics beyond the Standard Model (SM). We determine $\lvert C_7^{\rm incl} V_{tb} V_{ts}^* \rvert = (14.77 \pm 0.51_{\rm fit} \pm 0.59_{\rm theory} \pm 0.08_{\rm param})\times 10^{-3}$, in good agreement with the SM prediction, and the $b$-quark mass $m_b^{1S} = (4.750 \pm 0.027_{\rm fit} \pm 0.033_{\rm theory} \pm 0.003_{\rm param})\,\mathrm{GeV}$. Our results suggest that the uncertainties in the extracted $B\to X_s\gamma$ rate have been underestimated by up to a factor of two, leaving more room for beyond-SM contributions.
Harmonic Hybrid Inflation
Creators: name: Carta, Federico
name: Righi, Nicole
name: Welling, Yvette
name: Westphal, Alexander
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: We present a mechanism for realizing hybrid inflation using two axion fields with a purely non-perturbatively generated scalar potential. The structure of scalar potential is highly constrained by the discrete shift symmetries of the axions. We show that harmonic hybrid inflation generates observationally viable slow-roll inflation for a wide range of initial conditions. This is possible while accommodating certain UV arguments favoring constraints $f\lesssim M_{\rm P}$ and $\Delta\phi_{60}\lesssim M_{\rm P}$ on the axion periodicity and slow-roll field range, respectively. We discuss controlled $\mathbb{Z}_2$-symmetry breaking of the adjacent axion vacua as a means of avoiding cosmological domain wall problems. Including a minimal form of $\mathbb{Z}_2$-symmetry breaking into the minimally tuned setup leads to a prediction of primordial tensor modes with the tensor-to-scalar ratio in the range $10^{-4}\lesssim r \lesssim 0.01$, directly accessible to upcoming CMB observations. Finally, we outline several avenues towards realizing harmonic hybrid inflation in type IIB string theory.
Tuning Transport Properties of Topological Edge States of Bi(111) Bilayer Film by Edge Adsorption
Creators: name: Wang, Z. F.
name: Chen, Li
name: Liu, Feng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Based on first-principles and tight-binding calculations, we report that the transport properties of topological edge states of zigzag Bi(111) nanoribbon can be significantly tuned by H edge adsorption. The Fermi velocity is increased by one order of magnitude, as the Dirac point is moved from Brillouin zone boundary to Brillouin zone center and the real-space distribution of Dirac states are made twice more delocalized. These intriguing changes are explained by an orbital filtering effect of edge H atoms, which removes certain components of $p$ orbits of edge Bi atoms that reshapes the topological edge states. In addition, the spin texture of the Dirac states is also modified, which is described by introducing an effective Hamiltonian. Our findings not only are of fundamental interest but also have practical implications in potential applications of topological insulators.
description: 5 pages, 4 figures
Scalar Dark Matter Production from Preheating and Structure Formation Constraints
Creators: name: Garcia, Marcos A. G.
name: Pierre, Mathias
name: Verner, Sarunas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the out-of-equilibrium production of scalar dark matter (DM) from the inflaton condensate during inflation and reheating. We assume that this scalar couples only to the inflaton via a direct quartic coupling and is minimally coupled to gravity. We consider all possible production regimes: purely gravitational, weak direct coupling (perturbative), and strong direct coupling (non-perturbative). For each regime, we use different approaches to determine the dark matter phase space distribution and the corresponding relic abundance. For the purely gravitational regime, scalar dark matter quanta are copiously excited during inflation resulting in an infrared (IR) dominated distribution function and a relic abundance which overcloses the universe for a reheating temperature $T_\text{reh}>34 ~\text{GeV}$. A non-vanishing direct coupling induces an effective DM mass and suppresses the large IR modes in favor of ultraviolet (UV) modes and a minimal scalar abundance is generated when the interference between the direct and gravitational couplings is maximal. For large direct couplings, backreaction on the inflaton condensate is accounted for by using the Hartree approximation and lattice simulation techniques. Since scalar DM candidates can behave as non-cold dark matter, we estimate the impact of such species on the matter power spectrum and derive the corresponding constraints from the Lyman-$α$ measurements. We find that they correspond to a lower bound on the DM mass of $\gtrsim 3\times 10^{-4} \, \rm{eV}$ for purely gravitational production, and $\gtrsim 20 \, \rm {eV}$ for direct coupling production. We discuss the implications of these results.
description: 42 pages, 18 figures; v2: minor changes to match published version
БОЖХОНА ОРГАНЛАРИ ФАОЛИЯТИ ИСТИҚЛОЛ ЙИЛЛАРИДА
Creators: name: Олимжонова, Г.
Publisher: name: Zenodo
Year: 2023

description: Мазкур мақолада мустақиллик йилларида Ўзбекистонда Божхона органлари фаолияти ва ушбу соҳада амалга оширилган чора-тадбирлар, соҳани мустаҳкамлашнинг ҳуқуқий асослари тўғрисида маълумот берилади.
A CGPS Look at the Spiral Structure of the Outer Milky Way I: Distances and Velocities to Star Forming Regions
Creators: name: Foster, Tyler J.
name: Brunt, Christopher M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new catalogue of spectrophotometric distances and line-of-sight systemic velocities to 103 HII regions between 90$^{\circ}\leq \ell \leq~$195$^{\circ}$ (longitude quadrants II and part of III). Two new velocities for each region are independently measured using 1-arcminute resolution 21~cm HI and 2.6~mm $^{12}$CO line maps (from the Canadian Galactic Plane Survey and FCRAO Outer Galaxy Surveys) that show where gaseous shells are observed around the periphery of the ionized gas. Known and neighbouring OB-type stars with published UBV photometry and MK classifications are overlaid onto 21~cm continuum maps, and those stars observed within the boundary of the HII emission (and whose distance is not more than 3 times the standard deviation of the others) are used to calculate new mean stellar distances to each of the 103 nebulae. Using this approach of excluding distance outliers from the mean distance to a group of many stars in each HII region lessens the impact of anomalous reddening for certain individuals. Final mean distances of 9 common objects with VLBI parallax distances show a 1:1 correspondence. Further, comparison with previous catalogues of HII regions in these quadrants shows a 50% reduction in scatter for the distance to Perseus spiral arm objects in the same region, and a reduction by $\sim$1/$\sqrt{2}$ in scatter around a common angular velocity relative to the Sun $Ω-Ω_0$(km~s$^{-1}$~kpc$^{-1}$). The purpose of the catalogue is to provide a foundation for more detailed large-scale Galactic spiral structure and dynamics (rotation curve, density wave streaming) studies in the 2$^{\textrm{nd}}$ and 3$^{\textrm{rd}}$ quadrants, which from the Sun's location is the most favourably viewed section of the Galaxy.
description: 13 pages, 5 figures, accepted for publication in The Astronomical Journal, May 27, 2014
Guia de Aprendizagem - Dados à Prova D´Água
Creators: name: Castro Degrossi, L'ivia
name: Lima - Silva, Fernanda
name: Almeida de Sousa, Dayane
name: Da Silva Lucio, Fábio
name: Brandão Xavier, Gabriel
name: Ingnácio Reis, Guilherme
name: Castro Maia, Iasmin
name: Da Mata Martins, Mário
name: Silva Santana, Veridiana
Publisher: name: Zenodo
Year: 2022
Subjects: Guia
resiliência
chuva
eventos extremos
Ensino
Planos de aula
Desastres ambientais
Inundações
Calamidades públicas

description: O projeto Dados à Prova D’água (realizado entre 2018 e 2022) nasceu da colaboração entre instituições parceiras em três países: no Brasil, a Fundação Getulio Vargas e o Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN); na Alemanha, a Universidade de Heidelberg; e no Reino Unido, as Universidades de Glasgow e de Warwick. Essa colaboração envolveu uma equipe multidisciplinar, com pesquisadores de vários campos do conhecimento, incluindo desde as ciências sociais e humanas (administração pública, educação, estudos de mídia, geografia, psicologia social) até as ciências exatas e naturais (ciência da computação, ciência ambiental, hidrologia e meteorologia). A essas organizações, somaram-se outras parcerias fundamentais como a Secretaria do Meio Ambiente do Estado do Acre, a Universidade Federal do Acre, e as escolas públicas E.E. Vicente Leporace e E.E. Renato Braga, da zona Sul da cidade de São Paulo, e E.E. José Ribamar Batista e E.E. Jornalista Armando Nogueira, da cidade de Rio Branco no Acre. Enriquecido pelas múltiplas perspectivas desses pesquisadores, o objetivo principal do projeto Dados à Prova D’água foi o de investigar novos métodos para aumentar a resiliência das comunidades às inundações, incluída aí tanto a capacidade de lidar melhor com eventos extremos de chuva, como a de empreender medidas transformadoras para reduzir o risco de que esses eventos resultem em desastres com consequências catastróficas. O projeto propôs alcançar esse objetivo mediante o engajamento de comunidades e instituições governamentais no processo de geração, circulação e utilização de dados para prevenção de inundações. Uma premissa básica que adotamos foi a de situar o processo de geração de dados como parte de atividades de “ciência cidadã”, que permitam o empoderamento de estudantes, professores e membros da comunidade como ativos produtores de conhecimentos.
Electronic structure and de Haas-van Alphen frequencies in KFe2As2 within LDA+DMFT
Creators: name: Backes, Steffen
name: Guterding, Daniel
name: Jeschke, Harald O.
name: Valenti, Roser
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent density functional theory (DFT) calculations for KFe2As2 have shown to be insufficient to satisfactorily describe angle-resolved photoemission (ARPES) measurements as well as observed de Haas van Alphen (dHvA) frequencies. In the present work, we extend DFT calculations based on the full-potential linear augmented plane-wave method by dynamical mean field theory (DFT+DMFT) to include correlation effects beyond the local density approximation. Our results indicate that KFe2As2 is a moderately correlated metal with a mass renormalization factor of the Fe 3d orbitals between 1.6 and 2.7. Also, the obtained shape and size of the Fermi surface are in good agreement with ARPES measurements and we observe some topological changes with respect to DFT calculations like the opening of an inner hole cylinder at the Z point. As a result, our calculated dHvA frequencies differ greatly from existing DFT results and qualitatively agree with experimental data. On this basis, we argue that correlation effects are important to understand the -presently under debate- nature of superconducting state in KFe2As2.
description: 10 pages, 15 figures
X-ray Spectral Components in the Afterglow of GRB 130925A
Creators: name: Bellm, Eric C.
name: Barriere, Nicolas M.
name: Bhalerao, Varun
name: Boggs, Steven E.
name: Cenko, S. Bradley
name: Christensen, Finn E.
name: Craig, William W.
name: Forster, Karl
name: Fryer, Chris L.
name: Hailey, Charles J.
name: Harrison, Fiona A.
name: Horesh, Assaf
name: Kouveliotou, Chryssa
name: Madsen, Kristin K.
name: Miller, Jon M.
name: Ofek, Eran O.
name: Perley, Daniel A.
name: Rana, Vikram R.
name: Reynolds, Stephen P.
name: Stern, Daniel
name: Tomsick, John A.
name: Zhang, William W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have identified spectral features in the late-time X-ray afterglow of the unusually long, slow-decaying GRB 130925A using NuSTAR, Swift-XRT, and Chandra. A spectral component in addition to an absorbed power-law is required at $>4σ$ significance, and its spectral shape varies between two observation epochs at $2\times10^5$ and $10^6$ seconds after the burst. Several models can fit this additional component, each with very different physical implications. A broad, resolved Gaussian absorption feature of several keV width improves the fit, but it is poorly constrained in the second epoch. An additive black body or second power-law component provide better fits. Both are challenging to interpret: the blackbody radius is near the scale of a compact remnant ($10^8$ cm), while the second powerlaw component requires an unobserved high-energy cutoff in order to be consistent with the non-detection by Fermi-LAT.
description: Accepted for publication in ApJ Letters. 6 pages, 4 figures
Suffering and Spirituality: Cognition and Emotion across Three Religious Communities of a Hunter Gatherer Tribe in Malaysia
Creators: name: THONG, JIAN AI
Publisher: name: Monash University
Year: 2022
Subjects: Aboriginal and Torres Strait Islander psychology

description: This thesis examines the cognition and emotion of suffering experiences among the Temiar, an indigenous hunter-gatherer tribe in Peninsular Malaysia among which there are three primary religious communities (Traditional, Christian, and Muslim). The identification of concrete-perceptual mentalities oriented toward external resources emphasizes the importance of their land, community, spirituality, and traditions toward their mental wellbeing.
Evidence of momentum dependent hybridization in Ce2Co0.8Si3.2
Creators: name: Starowicz, P.
name: Kurleto, R.
name: Goraus, J.
name: Schwab, H.
name: Szlawska, M.
name: Forster, F.
name: Szytula, A.
name: Vobornik, I.
name: Kaczorowski, D.
name: Reinert, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We studied the electronic structure of the Kondo lattice system Ce2Co0.8Si3.2 by angle-resolved photoemission spectroscopy (ARPES). The spectra obtained below the coherence temperature consist of a Kondo resonance, its spin-orbit partner and a number of dispersing bands. The quasiparticle weight related to the Kondo peak depends strongly on Fermi vectors associated with bulk bands. This indicates a highly anisotropic hybridization between conduction band and 4f electrons - V_{cf} in Ce2Co0.8Si3.2.
description: 6 pages
Exponential Mixing for Skew Products with Discontinuities
Creators: name: Butterley, Oliver
name: Eslami, Peyman
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: Primary: 37A25, Secondary: 37C30, 37D50

description: We consider the skew product $F: (x,u) \mapsto (f(x), u + τ(x))$, where the base map $f : \mathbb{T}^{1} \to \mathbb{T}^{1}$ is piecewise $\mathcal{C}^{2}$, covering and uniformly expanding, and the fibre map $τ: \mathbb{T}^{1} \to \mathbb{R}$ is piecewise $\mathcal{C}^{2}$. We show the dichotomy that either this system mixes exponentially or $τ$ is cohomologous (via a Lipschitz function) to a piecewise constant.
Discussion on Peshkov et al., "Boltzmann-Ginzburg-Landau approach for continuous descriptions of generic Vicsek-like models"
Creators: name: Ihle, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A discussion on the contribution of Peshkov, Bertin, Ginelli and Chate, arxiv:1404.3275v1, in this special issue.
Jet quenching in strongly coupled plasma
Creators: name: Chesler, Paul M.
name: Rajagopal, Krishna
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present calculations in which an energetic light quark shoots through a finite slab of strongly coupled ${\cal N}=4$ supersymmetric Yang-Mills (SYM) plasma, with thickness $L$, focussing on what comes out on the other side. We find that even when the "jets" that emerge from the plasma have lost a substantial fraction of their energy they look in almost all respects like "jets" in vacuum with the same reduced energy. The one possible exception is that the opening angle of the "jet" is larger after passage through the slab of plasma than before. Along the way, we obtain a fully geometric characterization of energy loss in the strongly coupled plasma and show that $dE_{\rm out}/dL \propto L^2/\sqrt{x^2_{\rm stop}-L^2}$, where $E_{\rm out}$ is the energy of the "jet" that emerges from the slab of plasma and $x_{\rm stop}$ is the (previously known) stopping distance for the light quark in an infinite volume of plasma.
description: 13 pages, 5 figures
MANDALA COLORING FOR CHILDREN WITH SYMPTOMS OF ATTENTION DEFICIT HYPERACTIVITY DISORDER- A CASE SERIES
Creators: name: Chhavi Singh
name: Surekha C
name: Prachi Pandey
Publisher: name: Zenodo
Year: 2023
Subjects: Art Therapy, Mandala Coloring, ADHD Symptoms, Executive Functioning, Attention Span.

description: Abstract
Attention Deficit Hyperactivity condition (ADHD) is the most common neuropsychiatric condition of childhood. Inattention, Hyperactivity, and impulsivity are the 3 major signs of ADHD. Various therapies and techniques are well-established for children with ADHD disorder. However, there is a sizable subset of some signs of ADHD in children that do not fulfill the diagnostic standards. To adjacent this gap, psychologists have adopted various forms of art therapy to attain good results. Mandala coloring is a relatively new art-based intervention that can be used on children at risk of ADHD. However, literature is lacking on the usefulness of mandala coloring intervention on such at-risk children. Here we present a series of three children with ADHD symptoms in whom mandala coloring intervention was used. There were significant improvements in executive functioning after 30 sessions, indicating enhanced cognitive skills. There was also a moderate improvement in emotional and motivational self-regulation. At follow-up, parents reported improvement in academic performance and were able to concentrate on one activity for a longer duration.
OPERAS Innovation Lab. What makes a successful innovation?
Creators: name: Wnuk, Magdalena
Publisher: name: Zenodo
Year: 2023
Subjects: innovation
humanities
social sciences
citizen science

description: What makes our idea effective, rewarding and useful? This was the question addressed during a workshop session Digital humanities, citizen science and the arts: synergies towards innovative formats at the COESO project conference entitled Connect. Collaborate.Create (18-21 October 2023 in Paris). The session was an opportunity to present the assumptions of the OPERAS Innovation Lab and the methods it wants to develop in the area of evaluating innovative projects.
Topological and stacked flat bands in bilayer graphene with a superlattice potential
Creators: name: Ghorashi, Sayed Ali Akbar
name: Dunbrack, Aaron
name: Abouelkomsan, Ahmed
name: Sun, Jiacheng
name: Du, Xu
name: Cano, Jennifer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that bilayer graphene in the presence of a 2D superlattice potential provides a highly tunable setup that can realize a variety of flat band phenomena. We focus on two regimes: (i) topological flat bands with non-zero Chern numbers, C, including bands with higher Chern numbers |C| > 1; and (ii) an unprecedented phase consisting of a stack of nearly perfect flat bands with C = 0. For realistic values of the potential and superlattice periodicity, this stack can span nearly 100 meV, encompassing nearly all of the low-energy spectrum. We further show that in the topological regime, the topological flat band has a favorable band geometry for realizing a fractional Chern insulator (FCI) and use exact diagonalization to show that the FCI is in fact the ground state at 1/3 filling. Our results provide a realistic guide for future experiments to realize a new platform for flat band phenomena.
description: 14 pages including supplementary materials. Published version
Finite Element Flow Simulations of the EUROLIFT DLR-F11 High Lift Configuration
Creators: name: Chitale, Kedar C.
name: Rasquin, Michel
name: Martin, Jeff
name: Jansen, Kenneth E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper presents flow simulation results of the EUROLIFT DLR-F11 multi-element wing configuration, obtained with a highly scalable finite element solver, PHASTA. This work was accomplished as a part of the 2nd high lift prediction workshop. In-house meshes were constructed with increasing mesh density for analysis. A solution adaptive approach was used as an alternative and its effectiveness was studied by comparing its results with the ones obtained with other meshes. Comparisons between the numerical solution obtained with unsteady RANS turbulence model and available experimental results are provided for verification and discussion. Based on the observations, future direction for adaptive research and simulations with higher fidelity turbulence models is outlined.
description: 52nd Aerospace Sciences Meeting
The Transformative Potential of Religious, Spiritual, and Mystical Experiences
Creators: name: Barros, Michael
name: Schultz, Lola
Publisher: name: figshare
Year: 2023
Subjects: Psychology of religion

description: Religious, spiritual, and mystical experiences (RSMEs) hold the potential to bring about transformative changes in individuals, according to studies in the field of neuroscience. This essay explores the psychological and social effects of RSMEs, including the promotion of positive attitudes such as compassion, empathy, and altruism, and the modification of beliefs. Despite ongoing debates about their nature, whether they are sui generis or attributional phenomena or a combination of both, this essay adopts an integrated model. The transformative potential of RSMEs cannot be overlooked, and the recognition of their utility in this context is well warranted.
title: Young Homeless People and Urban Space: Displacements, Mobilities and Fixity
Creators: name: Jackson, Emma
Publisher: name: Goldsmiths, University of London
Year: 2010

description: This thesis is an investigation into youth homelessness and its spaces in contemporary London. As an issue, homelessness has often been equated with the category of the street homeless individual and the place of the street. Arguing that existing approaches do not capture the complexity of youth homelessness in the multicultural city, this thesis offers an alternative analytical framework based on an exploration of space as dynamic and processes of mobility, fixity and displacement. A multi-method project conducted in a day centre for young homeless people in central London, this research explores participants' lives and daily trajectories, the systems in which young homeless people are implicated and the survival tactics they practise within them. In framing the day centre as a place of the displaced, the thesis provides a different angle on how movement makes city space, foregrounding types and scales of displacement where movement is shaped by loss and violence. The research explores not only the `global in the local' (Massey: 1993) but the other shorter forms of displacements and daily movements that also make urban spaces. A range of spaces of homelessness - including the street, the hostel, the day centre – are explored revealing both the kinds of surveillance that shape participants' pathways and the place-making tactics (de Certeau: 1988) that are practised within them. The thesis argues that young homeless people are fixed in mobility a condition that impacts on both everyday life and possible futures. It examines how the enmeshing of systems, the presence of persistent pasts and the lack of tangible imagined futures suspends these young people in a precarious present.
On one generalization of the elliptic law for random matrices
Creators: name: Götze, Friedrich
name: Naumov, Alexey
name: Tikhomirov, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider the products of $m\ge 2$ independent large real random matrices with independent vectors $(X_{jk}^{(q)},X_{kj}^{(q)})$ of entries. The entries $X_{jk}^{(q)},X_{kj}^{(q)}$ are correlated with $ρ=\mathbb E X_{jk}^{(q)}X_{kj}^{(q)}$. The limit distribution of the empirical spectral distribution of the eigenvalues of such products doesn't depend on $ρ$ and equals to the distribution of $m$th power of the random variable uniformly distributed on the unit disc.
description: 40 pages. arXiv admin note: text overlap with arXiv:1012.2710
Application of scanning electrochemical microscopy for topography imaging of supported lipid bilayers
Creators: name: Nasri, Zahra
name: Memari, Seyedali
name: Striesow, Johanna
name: Weltmann, Klaus-Dieter
name: Von Woedtke, Thomas
name: Wende, Kristian
Publisher: name: Cambridge : RSC Publ.
Year: 2022
Subjects: subject: Lipid Bilayers
subject: Microscopy, Electrochemical, Scanning
subject: Proteins
subject: Scanning electron microscopy
subject: Scanning probe microscopy
subject: 540
subject: 660

description: Oxidative stress in cellular environments may cause lipid oxidation and membrane degradation. Therefore, studying the degree of lipid membrane morphological changes by reactive oxygen and nitrogen species will be informative in oxidative stress-based therapies. This study introduces the possibility of using scanning electrochemical microscopy as a powerful imaging technique to follow the topographical changes of a solid-supported lipid bilayer model induced by reactive species produced from gas plasma. The introduced strategy is not limited to investigating the effect of reactive species on the lipid bilayer but could be extended to understand the morphological changes of the lipid bilayer due to the action of membrane proteins or antimicrobial peptides.
Treatment of cylindrospermopsin by hydroxyl and sulfate radicals: Does degradation equal detoxification?
Creators: name: Schneider, Marcel
name: Grossi, Marina F.
name: Gadara, Darshak
name: Spáčil, Zdeněk
name: Babica, Pavel
name: Bláha, Luděk
Publisher: name: New York, NY [u.a.] : Science Direct
Year: 2022
Subjects: subject: advanced oxidation process
subject: cyanotoxin
subject: hepatospheroid
subject: toxicity
subject: water treatment
subject: 530

description: Drinking water treatment ultimately aims to provide safe and harmless drinking water. Therefore, the suitability of a treatment process should not only be assessed based on reducing the concentration os a pollutant concentration but, more importantly, on reducing its toxicity. Hence, the main objective of this study was to answer whether the degradation of a highly toxic compound of global concern for drinking water equals its detoxification. We, therefore, investigated the treatment of cylindrospermopsin (CYN) by •OH and SO4-• produced in Fenton and Fenton-like reactions. Although SO4-• radicals removed the toxin more effectively, both radical species substantially degraded CYN. The underlying degradation mechanisms were similar for both radical species and involved hydroxylation, dehydrogenation, decarboxylation, sulfate group removal, ring cleavage, and further fragmentation. The hydroxymethyl uracil and tricyclic guanidine moieties were the primary targets. Furthermore, the residual toxicity, assessed by a 3-dimensional human in vitro liver model, was substantially reduced during the treatment by both radical species. Although the results indicated that some of the formed degradation products might still be toxic, the overall reduction of the toxicity together with the proposed degradation pathways allowed us to conclude: “Yes, degradation of CYN equals its detoxification!”.