cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Condensation of collective charge ordering in Chromium
Creators: name: Singer, A.
name: Marsh, M.
name: Dietze, S.
name: Uhlíř, V.
name: Li, Y.
name: Walko, D. A.
name: Dufresne, E. M.
name: Srajer, G.
name: Cosgriff, M. P.
name: Evans, P. G.
name: Fullerton, E. E.
name: Shpyrko, O. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Here we report on the dynamics of the structural order parameter in a chromium film using synchrotron radiation in response to photo-induced ultra-fast excitations. Following transient optical excitations the effective lattice temperature of the film rises close to the Néel temperature and the charge density wave (CDW) amplitude is reduced. Although we expect the electronic charge ordering to vanish shortly after the excitation we observe that the CDW is never completely disrupted, which is revealed by its unmodified period at elevated temperatures. We attribute the persistence of the CDW to the long-lived periodic lattice displacement in chromium. The long-term evolution shows that the CDW revives to its initial strength within 1 ns, which appears to behave in accordance with the temperature dependence in equilibrium. This study highlights the fundamental role of the lattice distortion in charge ordered systems and its impact on the re-condensation dynamics of the charge ordered state in strongly correlated materials.
description: 17 pages, 7 figures
Additional file 6 of The chromosome-scale genome assembly for the West Nile vector Culex quinquefasciatus uncovers patterns of genome evolution in mosquitoes
Creators: name: Ryazansky, Sergei S.
name: Chen, Chujia
name: Potters, Mark
name: Naumenko, Anastasia N.
name: Lukyanchikova, Varvara
name: Masri, Reem A.
name: Brusentsov, Ilya I.
name: Karagodin, Dmitriy A.
name: Yurchenko, Andrey A.
name: dos Anjos, Vitor L.
name: Haba, Yuki
name: Rose, Noah H.
name: Hoffman, Jinna
name: Guo, Rong
name: Menna, Theresa
name: Kelley, Melissa
name: Ferrill, Emily
name: Schultz, Karen E.
name: Qi, Yumin
name: Sharma, Atashi
name: Deschamps, Stéphane
name: Llaca, Victor
name: Mao, Chunhong
name: Murphy, Terence D.
name: Baricheva, Elina M.
name: Emrich, Scott
name: Fritz, Megan L.
name: Benoit, Joshua B.
name: Sharakhov, Igor V.
name: McBride, Carolyn S.
name: Tu, Zhijian
name: Sharakhova, Maria V.
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6. Detailed Methods for Odorant Receptor Annotations.
Leading- And next-to-leading-order semiclassical approximation to the first seven virial coefficients of spin-1/2 fermions across spatial dimensions
Creators: name: Shill, C.R.
name: Czejdo, A.J.
name: Hou, Y.
name: Drut, J.E.
name: Dechant, J.
Publisher: name: American Physical Society
Year: 2019

description: Following up on recent calculations, we investigate the leading- A nd next-to-leading-order semiclassical approximation to the virial coefficients of a two-species fermion system with a contact interaction. Using the analytic result for the second-order virial coefficient as a renormalization condition, we derive expressions for up to the seventh-order virial coefficient Δb7. Our results at leading order, though approximate, furnish simple analytic formulas that relate Δbn to Δb2 for arbitrary dimension, providing a glimpse into the behavior of the virial expansion across dimensions and coupling strengths. As an application, we calculate the pressure and Tan's contact of the two-dimensional attractive Fermi gas and examine the radius of convergence of the virial expansion as a function of the coupling strength.
On the origin of the lump in circumbinary discs
Creators: name: Mignon-Risse, Raphaël
name: Varniere, Peggy
name: Casse, Fabien
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Accreting binary black holes (BBHs) are multi-messenger sources, emitting copious electromagnetic (EM) and gravitational waves. One of their most promising EM signatures is the lightcurve modulation caused by a strong, unique and extended azimuthal overdensity structure orbiting at the inner edge of the circumbinary disc (CBD), dubbed "lump". In this paper, we investigate the origin of this structure using 2D general-relativistic (GR) hydrodynamical simulations of a CBD in an approximate BBH spacetime. First, we use the symmetric mass-ratio case to study the transition from the natural m = 2 mode to m = 1. The asymmetry with respect to m = 2 grows exponentially, pointing to an instability origin. We indeed find that the CBD edge is prone to a (magneto-)hydrodynamical instability owing to the disc edge density sharpness: the Rossby Wave Instability (RWI). The RWI criterion is naturally fullfilled at the CBD edge and we report the presence of vortices, which are typical structures of the RWI. The RWI is also at work in the asymmetric mass-ratio cases (from 0.1 to 0.5). However, the CBD edge sharpness decreases with a decreasing mass ratio, and so the lump. By proposing a scenario for this lump formation, our work further supports its existence in astrophysical CBDs and potential source for an EM signature of BBHs. Finally, because the RWI is not caused by GR effects, it is also a robust candidate for the lump origin in CBDs around non-compact objects, e.g. binary protostars.
description: 11 pages, 11 figures. Accepted for publication in MNRAS
Third- And fourth-order virial coefficients of harmonically trapped fermions in a semiclassical approximation
Creators: name: Berger, C.E.
name: Drut, J.E.
name: Morrell, K.J.
Publisher: name: American Physical Society
Year: 2019

description: Using a leading-order semiclassical approximation, we calculate the third- A nd fourth-order virial coefficients of nonrelativistic spin-1/2 fermions in a harmonic trapping potential in arbitrary spatial dimensions, and as functions of temperature, trapping frequency, and coupling strength. Our simple, analytic results for the interaction-induced changes Δb3 and Δb4 agree qualitatively, and in some regimes quantitatively, with previous numerical calculations for the unitary limit of three-dimensional Fermi gases.
College persistence, resiliency, and factors contributing to the Latina collegian experience
Creators: name: Bucalo, Jennifer M.
Publisher: name: No Publisher Supplied
Year: 2019

description: Disparities persist among college attendance and conferred degrees for Latinas in the United States. College enrollment is on the rise for Latinas; however, completion rates remain disproportionately lower. If educational outcomes are to improve for the Latinx community, the number of support systems for this population must increase at the university levels from a strength-based approach.The purpose of this study was to examine factors associated with college persistence and resilience at four-year institutions among Latinas. This is a cross-sectional study of factors associated with college persistence and the resilience of Latina undergraduate students at four-year institutions. The study sampled and compared levels of resilience among Latinas enrolled in their third and fourth year of college versus those who dropped out in their first or second year. This study analyzed the online survey responses of 308 Latina females that enrolled in college during the fall of 2014.Results from the bivariate and multivariate analysis indicated that college persistence was higher among younger students (18-21 years old), bilingual students, single students, those who had awards/scholarships, and those who belonged to a student and/or community organizations. The study findings for resilience indicated that belonging to student organizations and father’s education were significant individual predictors for Latinas. The significant sociocultural variables included sense of belonging, acculturation—mainstream culture subscale, and acculturation-heritage culture subscale. Having high levels of resilience was statistically associated with the university environment. It is recommended that higher learning institutions develop culturally appropriate supportive interventions to increase Latina graduation rates. Further research is needed to examine how hiring more Latinx professors to mirror the student population can improve the campus environment.
Spectral density, Levinson's theorem, and the extra term in the second virial coefficient for the one-dimensional δ-function potential
Creators: name: Camblong, H.E.
name: Chakraborty, A.
name: Ordóñez, C.R.
name: Drut, J.E.
name: Daza, W.S.
name: Lin, C.L.
Publisher: name: American Physical Society
Year: 2019

description: In contrast with the three-dimensional result, the Beth-Uhlenbeck (BU) formula in one dimension contains an extra-1/2 term. The origin of this-1/2 term is explained using a spectral density approach. To be explicit, a δ-function potential is used to show that the correction term arises from a pole of the density of states at zero energy. The spectral density method shows that this term is actually an artifact of the non-normalizability of the scattering states and an infrared cutoff regularization scheme has to be used to get the correct result in one dimension. The formal derivation of the BU formula would miss this term since it ignores the effects of the boundary terms. While the result is shown for the δ-function potential, the method and result are valid for more general potentials. Additionally, the one-dimensional Levinson theorem can be extracted from the spectral density method using the asymptotic form of general potentials. The importance of the result lies in the fact that all these correction terms in one dimension have a universal source: A pole at zero energy. Similar calculations using quantum field-theoretical approaches (without explicit infrared cutoff regularization schemes) also show the same subtleties with the correction term originating from the zero energy scattering states (Appendix A).
Magnetic Twist and Writhe of Active Regions: On the Origin of Deformed Flux Tubes
Creators: name: Fuentes, M. López
name: Démoulin, P.
name: Mandrini, C. H.
name: Pevtsov, A. A.
name: van Driel-Gesztelyi, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the long term evolution of a set of 22 bipolar active regions (ARs) in which the main photospheric polarities are seen to rotate one around the other during several solar rotations. We first show that differential rotation is not at the origin of this large change in the tilt angle. A possible origin of this distortion is the nonlinear development of a kink-instability at the base of the convective zone; this would imply the formation of a non-planar flux tube which, while emerging across the photosphere, would show a rotation of its photospheric polarities as observed. A characteristic of the flux tubes deformed by this mechanism is that their magnetic twist and writhe should have the same sign. From the observed evolution of the tilt of the bipoles, we derive the sign of the writhe of the flux tube forming each AR; while we compute the sign of the twist from transverse field measurements. Comparing the handedness of the magnetic twist and writhe, we find that the presence of kink-unstable flux tubes is coherent with no more than 35\% of the 20 cases for which the sign of the twist can be unambiguously determined. Since at most only a fraction of the tilt evolution can be explained by this process, we discuss the role that other mechanisms may play in the inferred deformation. We find that 36\% of the 22 cases may result from the action of the Coriolis force as the flux tube travels through the convection zone. Furthermore, because several bipoles overpass in their rotation the mean toroidal (East-West) direction or rotate away from it, we propose that a possible explanation for the deformation of all these flux tubes may lie in the interaction with large-scale vortical motions of the plasma in the convection zone, including also photospheric or shallow sub-photospheric large scale flows.
description: Published in Astronomy and Astrophysics
IIB от Мудрого Шута по-русски
Creators: name: Zaytseva, Anna
Publisher: name: Zenodo
Year: 2023
Subjects: complex systems
humor
emerging professions
emergence
professional network

description: Простая презентация IIB от Мудрого Шута на русском языке. IIB online: https://intellectualandimmaterialbank.com/
Effective power-law dependence of Lyapunov exponents on the central mass in galaxies
Creators: name: Delis, N.
name: Efthymiopoulos, C.
name: Kalapotharakos, C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using both numerical and analytical approaches, we demonstrate the existence of an effective power-law relation $L\propto m^p$ between the mean Lyapunov exponent $L$ of stellar orbits chaotically scattered by a supermassive black hole in the center of a galaxy and the mass parameter $m$, i.e. ratio of the mass of the black hole over the mass of the galaxy. The exponent $p$ is found numerically to obtain values in the range $p \approx 0.3$--$0.5$. We propose a theoretical interpretation of these exponents, based on estimates of local `stretching numbers', i.e. local Lyapunov exponents at successive transits of the orbits through the black hole's sphere of influence. We thus predict $p=2/3-q$ with $q\approx 0.1$--$0.2$. Our basic model refers to elliptical galaxy models with a central core. However, we find numerically that an effective power law scaling of $L$ with $m$ holds also in models with central cusp, beyond a mass scale up to which chaos is dominated by the influence of the cusp itself. We finally show numerically that an analogous law exists also in disc galaxies with rotating bars. In the latter case, chaotic scattering by the black hole affects mainly populations of thick tube-like orbits surrounding some low-order branches of the $x_1$ family of periodic orbits, as well as its bifurcations at low-order resonances, mainly the Inner Lindbland resonance and the 4/1 resonance. Implications of the correlations between $L$ and $m$ to determining the rate of secular evolution of galaxies are discussed.
description: 27 pages, 19 figures
A phenomenological model of the X-ray pulse statistics of a high-repetition-rate X-ray free-electron laser
Creators: name: Guest, Trey
name: Bean, Richard
name: Kammering, Raimund
name: van Riessen, Grant
name: Mancuso, Adrian
name: Abbey, Brian
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 5104
subject: Condensed matter physics
classificationCode: 3406
subject: Physical chemistry

description: Many coherent imaging applications that utilize ultrafast X-ray free-electron laser (XFEL) radiation pulses are highly sensitive to fluctuations in the shot-to-shot statistical properties of the source. Understanding and modelling these fluctuations are key to successful experiment planning and necessary to maximize the potential of XFEL facilities. Current models of XFEL radiation and their shot-to-shot statistics are based on theoretical descriptions of the source and are limited in their ability to capture the shot-to-shot intensity fluctuations observed experimentally. The lack of accurate temporal statistics in simulations that utilize these models is a significant barrier to optimizing and interpreting data from XFEL coherent diffraction experiments. Presented here is a phenomenological model of XFEL radiation that is capable of capturing the shot-to-shot statistics observed experimentally using a simple time-dependent approximation of the pulse wavefront. The model is applied to reproduce non-stationary shot-to-shot intensity fluctuations observed at the European XFEL, whilst accurately representing the single-shot properties predicted by FEL theory. Compared with previous models, this approach provides a simple, robust and computationally inexpensive method of generating statistical representations of XFEL radiation.
Additional file 1 of The glucocorticoid receptor as a master regulator of the Müller cell response to diabetic conditions in mice
Creators: name: Pfaller, Anna M.
name: Kaplan, Lew
name: Carido, Madalena
name: Grassmann, Felix
name: Díaz-Lezama, Nundehui
name: Ghaseminejad, Farhad
name: Wunderlich, Kirsten A.
name: Glänzer, Sarah
name: Bludau, Oliver
name: Pannicke, Thomas
name: Weber, Bernhard H. F.
name: Koch, Susanne F.
name: Bonev, Boyan
name: Hauck, Stefanie M.
name: Grosche, Antje
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1. Supplementary information provides more extensive description details of various studies on the used db/db mouse strain, focusing on the validation of vascular alterations (Fig. S1), validadtion of MACS-based enrichment effectiveness and glial activation analysis using RNAseq and mass spectrometry (Fig. S2), transcriptome and proteome comparison in Müller cells from diabetic retinas, highlighting concordant expression patterns (Fig. S3), unprocessed Western blots for GR and PDHB analysis in different cell types and conditions (Fig. S4) and a phenotypic comparison regarding body weight and ERG recordings of db/db mice from different laboratory backgrounds.
Computational Role of Multiqubit Tunneling in a Quantum Annealer
Creators: name: Boixo, Sergio
name: Smelyanskiy, Vadim N.
name: Shabani, Alireza
name: Isakov, Sergei V.
name: Dykman, Mark
name: Denchev, Vasil S.
name: Amin, Mohammad
name: Smirnov, Anatoly
name: Mohseni, Masoud
name: Neven, Hartmut
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum tunneling, a phenomenon in which a quantum state traverses energy barriers above the energy of the state itself, has been hypothesized as an advantageous physical resource for optimization. Here we show that multiqubit tunneling plays a computational role in a currently available, albeit noisy, programmable quantum annealer. We develop a non-perturbative theory of open quantum dynamics under realistic noise characteristics predicting the rate of many-body dissipative quantum tunneling. We devise a computational primitive with 16 qubits where quantum evolutions enable tunneling to the global minimum while the corresponding classical paths are trapped in a false minimum. Furthermore, we experimentally demonstrate that quantum tunneling can outperform thermal hopping along classical paths for problems with up to 200 qubits containing the computational primitive. Our results indicate that many-body quantum phenomena could be used for finding better solutions to hard optimization problems.
description: Complete rewrite, much shorter version of arXiv:1411.4036. 7 pages, 7 figures
Fermi-Fermi crossover in the ground state of one-dimensional few-body systems with anomalous three-body interactions
Creators: name: Drut, J.E.
name: McKenney, J.R.
Publisher: name: American Physical Society
Year: 2019

description: In one spatial dimension, quantum systems with an attractive three-body contact interaction exhibit a scale anomaly. In this work, we examine the few-body sector for up to six particles. We study those systems with a self-consistent, nonperturbative, iterative method in the subspace of zero total momentum. Exploiting the structure of the contact interaction, the method reduces the complexity of obtaining the wave function by three powers of the dimension of the Hilbert space. We present results on the energy, momentum, and spatial structure, as well as Tan's contact. We find a Fermi-Fermi crossover interpolating between large, weakly bound trimers and compact, deeply bound trimers: at weak coupling, the behavior is captured by degenerate perturbation theory; at strong coupling, the system is governed by an effective theory of heavy trimers (plus free particles in the case of asymmetric systems). Additionally, we find that there is no trimer-trimer attraction and therefore no six-body bound state.
On development, poverty, and autonomy: a case study of a World Bank public-private partnership in Latin America
Creators: name: Bridgemohan, Simone R.
Publisher: name: No Publisher Supplied
Year: 2019

description: Using a qualitative, exploratory single-case study approach, this study examines the theoretical and practical discontinuities between the World Bank’s current development model of public-private partnerships (PPPs) and development and poverty trends “on the ground” in localities where Bank-supported projects operate. There exists a disconnect between the Bank’s development rhetoric – framed in terms of Bank projects as “pro-poor” – and how “locals,” especially the poor, perceive what is happening to their livelihoods and community as a result of these development projects. Data was collected through semi-structured interview, participant observation, and primary source documents. This study is grounded in the constructivism paradigm, which, alongside conventional content analysis, guided the data analysis process. This study’s results show that two critical factors, basic needs and autonomy, are integral to study participants’ conceptualizations of poverty and development; in other words, they attribute their own and others’ impoverished livelihoods to a shared inability to meet basic needs and a lack of autonomy.
First-principles calculations of phonon frequencies, lifetimes and spectral functions from weak to strong anharmonicity: the example of palladium hydrides
Creators: name: Paulatto, Lorenzo
name: Errea, Ion
name: Calandra, Matteo
name: Mauri, Francesco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The variational stochastic self-consistent harmonic approximation is combined with the calculation of third-order anharmonic coefficients within density-functional perturbation theory and the "$2n+1$" theorem to calculate anharmonic properties of crystals. It is demonstrated that in the perturbative limit the combination of these two methods yields the perturbative phonon linewidth and frequency shift in a very efficient way, avoiding the explicit calculation of fourth-order anharmonic coefficients. Moreover, it also allows calculating phonon lifetimes and inelastic neutron scattering spectra in solids where the harmonic approximation breaks down and a non-perturbative approach is required to deal with anharmonicity. To validate our approach, we calculate the anharmonic phonon linewidth in the strongly anharmonic palladium hydrides. We show that due to the large anharmonicity of hydrogen optical modes the inelastic neutron scattering spectra are not characterized by a Lorentzian line-shape, but by a complex structure including satellite peaks.
Anisotropic $H_{c2}$, thermodynamic and transport measurements, and pressure dependence of $T_{c}$ in K$_{2}$Cr$_{3}$As$_{3}$ single crystals
Creators: name: Kong, Tai
name: Bud'ko, Sergey L.
name: Canfield, Paul C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a detailed study of single crystalline K$_{2}$Cr$_{3}$As$_{3}$ and analyze its thermodynamic and transport properties, anisotropic $H_{c2}(T)$, and initial pressure-dependence of $T_{c}$. In zero-field, the temperature-dependent resistivity is metallic. Deviation from a linear temperature-dependence is evident below 100 K and a $T^{3}$-dependence is roughly followed from just above $T_{c}$ ($\sim$10 K) to $\sim$ 40 K. Anisotropic $H_{c2}(T)$ data were measured up to 140 kOe with field applied along and perpendicular to the rod-like crystals. For the applied field perpendicular to the rod, $H_{c2}(T)$ is linear with a slope $\sim$-70 kOe/K. For field applied along the rod, the slope is about -120 kOe/K below 70 kOe. Above 70 kOe, the magnitude of the slope decreases to $\sim$-70 kOe/K. The electronic specific heat coefficient, $γ$, just above $T_{c}$, is 73 mJ/mol K$^{2}$; the Debye temperature, $Θ_{D}$, is 220 K. The specific heat jump at the superconducting transition $Δ$C $\sim$ 2.2 $γT_{c}$. Finally, for hydrostatic pressures up to $\sim$7 kbar, $T_{c}$ decreases under pressure linearly at a rate of -0.034 K/kbar.
description: figures are revised
Spectrophotometric analysis of magnetic white dwarf I: Hydrogen-rich compositions
Creators: name: Hardy, François
name: Dufour, Patrick
name: Jordan, Stefan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an homogeneous analysis of all DA stars labeled as magnetic in the Montreal White Dwarf Database (MWDD). Our sample is restricted to almost all known magnetic white dwarf showing clear sign of splitting ($B \gtrsim$ 1-2 MG) that have parallax measurements from the second Gaia data release, photometric data from diverse surveys and spectroscopic data from SDSS or archival data from the Montreal group. We determine the atmospheric parameters (effective temperature, surface gravity, magnetic field strength/geometry) of all objects using state-of-the-art model atmosphere/magnetic synthetic spectra, as well as reclassify many objects that were prematurely labeled as potentially magnetic. Finally, we discuss the atmospheric parameters/field properties distribution as well as the implication on our understanding of magnetic white dwarfs origin and evolution.
description: 140 pages. Part 1 of 2. To be published in Monthly Notices of the Royal Astronomical Society
Measuring the speed of light with Baryon Acoustic Oscillations
Creators: name: Salzano, Vincenzo
name: Dabrowski, Mariusz P.
name: Lazkoz, Ruth
Publisher: name: arXiv
Year: 2014
Subjects: 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: In this letter we describe a new method to use Baryon Acoustic Oscillations (BAO) to derive a constraint on the possible variation of the speed of light. The method relies on the fact that there is a simple relation between the angular diameter distance $(D_{A})$ maximum and the Hubble function $(H)$ evaluated at the same maximum-condition redshift, which includes speed of light $c$. We note the close analogy of the BAO probe with a laboratory experiment: here we have $D_{A}$ which plays the role of a standard (cosmological) ruler, and $H^{-1}$, with the dimension of time, as a (cosmological) clock. We evaluate if current or future missions such as Euclid can be sensitive enough to detect any variation of $c$.
description: 5 pages, 3 figures
IIB от Мудрого Шута по-русски
Creators: name: Zaytseva, Anna
Publisher: name: Zenodo
Year: 2023
Subjects: complex systems
humor
emerging professions
emergence
professional network

description: Простая презентация IIB от Мудрого Шута на русском языке. IIB online: https://intellectualandimmaterialbank.ru/
Additional file 6 of Impacts for health and care workers of Covid-19 and other public health emergencies of international concern: living systematic review, meta-analysis and policy recommendations
Creators: name: Fronteira, Inês
name: Mathews, Verona
name: dos Santos, Ranailla Lima Bandeira
name: Matsumoto, Karen
name: Amde, Woldekidan
name: Pereira, Alessandra
name: de Oliveira, Ana Paula Cavalcante
name: Craveiro, Isabel
name: Chança, Raphael
name: Boniol, Mathieu
name: Ferrinho, Paulo
name: Poz, Mario Roberto Dal
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 6. Forest plots and funnel plots for meta-analysis of the outcomes.
Spectrophotometric analysis of magnetic white dwarf II: Helium-rich compositions
Creators: name: Hardy, François
name: Dufour, Patrick
name: Jordan, Stefan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis of all single white dwarf stars known to exhibit spectroscopic signatures of neutral helium line splitting due to the presence of a strong magnetic field. Using state-of-the-art models taking into account the effects of magnetic fields on the synthetic spectra, we determine effective temperatures, surface gravities and masses for the stars in our sample. Our analysis uses data from the second and third Gaia (early) data release, photometric data from diverse surveys such as the Sloan Digital Sky Survey and Pan-STARRS, and archived spectroscopic data. We are able to successfully reproduce the spectra of 8 objects using an offset dipole geometry while several others seem to require either a more complexe geometry or a different chemical composition. We also highlight a group of hot featureless white dwarfs that are most probably highly magnetic objects whose spectra are completely smeared due to the field strength distribution across the surface.
description: 38 pages. Part 2 of 2. To be published in Monthly Notices of the Royal Astronomical Society
A Model of an E-Learning Web Site for Teaching and Evaluating Online
Creators: name: Amasha, Mohammed A.
name: Alkhalaf, Salem
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: This research is endeavoring to design an e-learning web site on the internet having the course name as "Object Oriented Programming" (OOP) for the students of level four at Computer Science Department (CSD). This course is to be taught online (through web) and then a programme is to be designed to evaluate students performance electronically while introducing a comparison between online teaching , e-evaluation and traditional methods of evaluation. The research seeks to lay out a futuristic perception that how the future online teaching and e-electronic evaluation should be the matter which highlights the importance of this research.
Three essays on CEO career concerns, management forecasts, and regulatory scrutiny on disclosure practices
Creators: name: Ding, Kexing
Publisher: name: No Publisher Supplied
Year: 2019

description: The dissertation consists of three independent and interrelated essays focusing on CEO career concerns, management forecast characteristics, and regulatory scrutiny on disclosure practices.The first essay argues that CEOs with career concerns may use a forecast precision strategy to highlight or obfuscate information disclosed in management forecasts. This study suggests that new CEOs are more likely to increase forecast precision when the underlying forecast news is more positive and reduce forecast precision when the news is more negative. Further, the findings suggest that CEOs especially use this approach when the career concern problem is more severe and when there are more opportunities for strategic disclosures. The second essay investigates the changes in firms’ voluntary disclosure of forward-looking information after receiving critical comment letters issued by the Securities and Exchange Commission. The study focuses on revenue recognition comment letters and analyzes several management forecast characteristics. I find that firms tend to issue more management forecasts and supplement earnings forecasts with disaggregated forecasts on other line-items, especially the forecasts for revenue account. I also find that the effect is stronger for negative news forecasts and market reactions to the comment letter release are attenuated if managers provide more frequent and transparent forecasts. The third essay evaluates the impact of Securities and Exchange Commission disclosure scrutiny on corporate hedging activities. I find that firms’ risk exposures decrease after receiving derivatives-related comment letters, possibly indicating hedging efficiency improvements. Further, derivatives comment letter receiver firms are more likely to stop or reduce derivatives usage during the post-letter period. The study adds to the research that examines how SEC regulatory scrutiny on disclosure practices may influence firms' real behaviors. The first and the second essays respond to the call by Hirst et al. (2008) to extend research on the management forecast attributes. The first essay is also related to the literature that examines the impact of career concerns on managerial behaviors. The second and third essays add to the comment letter literature. I extend the growing research that examines the efficacy of the SEC comment letter review process and its impact on the information environment.
Realignment-free cryogenic macroscopic optical cavity coupled to an optical fiber
Creators: name: Fedoseev, Vitaly
name: Fisicaro, Matteo
name: van der Meer, Harmen
name: Löffler, Wolfgang
name: Bouwmeester, Dirk
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a cryogenic setup where an optical Fabry-Perot resonator is coupled to a single-mode optical fiber with coupling efficiency above 90% at mK temperatures without realignment during cooling down. The setup is prealigned at room temperature to compensate for the thermal contraction and change of the refractive index of the optical components during cooling down. The high coupling efficiency is achieved by keeping the setup rotation-symmetric around the optical axis. The majority of the setup components are made of Invar (FeNi36) which minimizes the thermal contraction. High coupling efficiency is essential in quantum optomechanical experiments.
description: 6 pages, 4 figures
Finite-Temperature Equation of State of Polarized Fermions at Unitarity
Creators: name: Rammelmüller, L.
name: Loheac, A.C.
name: Braun, J.
name: Drut, J.E.
Publisher: name: American Physical Society
Year: 2018

description: We study in a nonperturbative fashion the thermodynamics of a unitary Fermi gas over a wide range of temperatures and spin polarizations. To this end, we use the complex Langevin method, a first principles approach for strongly coupled systems. Specifically, we show results for the density equation of state, the magnetization, and the magnetic susceptibility. At zero polarization, our results agree well with state-of-the-art results for the density equation of state and with experimental data. At finite polarization and low fugacity, our results are in excellent agreement with the third-order virial expansion. In the fully quantum mechanical regime close to the balanced limit, the critical temperature for superfluidity appears to depend only weakly on the spin polarization.
RELEVANCE OF THE HUMAN PROBLEM IN MODERN TURKISH PHILOSOPHY
Creators: name: Kuvatov, Javokhir
name: Pulatova, Dildora
Publisher: name: Zenodo
Year: 2023

description: In modern Turkish philosophy, the human problem holds significant relevance. As a rapidly evolving society, Turkey faces an array of challenges related to human existence, identity, and values. Understanding and addressing these issues is vital for the development and progress of the country. Therefore, analyzing the human problem from a philosophical perspective becomes crucial in order to shed light on the complexities surrounding Turkish society and pave the way for solutions to these challenges.
Additional file 7 of Impacts for health and care workers of Covid-19 and other public health emergencies of international concern: living systematic review, meta-analysis and policy recommendations
Creators: name: Fronteira, Inês
name: Mathews, Verona
name: dos Santos, Ranailla Lima Bandeira
name: Matsumoto, Karen
name: Amde, Woldekidan
name: Pereira, Alessandra
name: de Oliveira, Ana Paula Cavalcante
name: Craveiro, Isabel
name: Chança, Raphael
name: Boniol, Mathieu
name: Ferrinho, Paulo
name: Poz, Mario Roberto Dal
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 7. Included studies.
Negative differential conductivity in an interacting quantum gas
Creators: name: Labouvie, Ralf
name: Santra, Bodhaditya
name: Heun, Simon
name: Wimberger, Sandro
name: Ott, Herwig
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Negative differential conductivity (NDC) is a widely exploited effect in modern electronic components. Here, a proof-of-principle is given for the observation of NDC in a quantum transport device for neutral atoms employing a multi-mode tunneling junction. The transport of the many-body quantum system is governed by the interplay between the tunnel coupling, the interaction energy and the thermodynamics of intrinsic collisions, which turn the coherent coupling into a hopping process. The resulting current voltage characteristics exhibit NDC, for which we identify a new microscopic physical mechanism. Our study opens new ways for the future implementation and control of complex neutral atom quantum circuits.
Quantum Anomaly and Thermodynamics of One-Dimensional Fermions with Three-Body Interactions
Creators: name: Daza, W.S.
name: Lin, C.L.
name: Ordóñez, C.R.
name: Drut, J.E.
name: McKenney, J.R.
Publisher: name: American Physical Society
Year: 2018

description: We show that a system of three species of one-dimensional fermions, with an attractive three-body contact interaction, features a scale anomaly directly related to the anomaly of two-dimensional fermions with two-body contact forces. We show, furthermore, that those two cases (and their multispecies generalizations) are the only nonrelativistic systems with contact interactions that display a scale anomaly. While the two-dimensional case is well known and has been under study both experimentally and theoretically for years, the one-dimensional case presented here has remained unexplored. For the latter, we calculate the impact of the anomaly on the equation of state, which appears through the generalization of Tan's contact for three-body forces, and determine the pressure at finite temperature. In addition, we show that the third-order virial coefficient is proportional to the second-order coefficient of the two-dimensional two-body case.
Additional file 8 of Impacts for health and care workers of Covid-19 and other public health emergencies of international concern: living systematic review, meta-analysis and policy recommendations
Creators: name: Fronteira, Inês
name: Mathews, Verona
name: dos Santos, Ranailla Lima Bandeira
name: Matsumoto, Karen
name: Amde, Woldekidan
name: Pereira, Alessandra
name: de Oliveira, Ana Paula Cavalcante
name: Craveiro, Isabel
name: Chança, Raphael
name: Boniol, Mathieu
name: Ferrinho, Paulo
name: Poz, Mario Roberto Dal
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 8. Excluded studies.
Tracking the Local Group Dynamics by Extended Gravity
Creators: name: Benisty, David
name: Capozziello, Salvatore
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Local Group (LG) of galaxies, modeled as a two body problem, is sensitive to cosmological contributions like those related to the presence of a cosmological constant $Λ$ into dynamics. Here we study the LG dynamics in the context of Extended Theories of Gravity like $f(R)$ gravity considered as dark energy and dark matter contributions. In the first approach, we perturb the dark energy effect considering a Yukawa-like interaction that naturally emerges from $f(R)$ gravity in the weak field limit. We assume the mass of LG from simulations and, from this, derive constraints on the Yukawa couplings: $α< 0.581$ and $m_{grav} < 5.095 \cdot 10^{-26} \, eV/c^2$. In the second part, considering a minimal extension of General Relativity, i.e. $f(R) \sim R^{1+ε}$, with $|ε|\ll 1$, we investigate the possibility that it replaces dark matter as a MOND-like theory. We find that there is a value of the parameter $β$ (derived starting from $ε$) which gives a minimal value for the LG mass. Moreover, this particular potential allows to calculate the ratio of dark matter and baryonic matter for the LG to be. We show that this ratio could falsify MOND-like theories.
description: Accepted in Phys Of The Dark Univ
A complex Langevin approach to ultracold fermions
Creators: name: Drut, J.E.
name: Rammelmüller, L.
name: Braun, J.
Publisher: name: Institute of Physics Publishing
Year: 2018

description: The theoretical treatment of Fermi systems consisting of particles with unequal masses is challenging. Even in one spatial dimension analytic solutions are limited to special configurations and numerical progress with Monte Carlo simulations is hindered by the sign-problem. To circumvent this issue, we exploit the Complex Langevin approach and study one-dimensional mass-imbalanced two-component Fermi gases with attractive and repulsive interactions. We find perfect agreement with results obtained by other methods in a range of parameter space. Promisingly, our approach is not limited to the specific model presented here and can easily be extended to finite spin polarization and, most notably, can also be applied in higher dimensions.
Intersection Cohomology of the Universal Imploded Cross-Section of SU(3)
Creators: name: Ho, Nan-Kuo
name: Jeffrey, Lisa
Publisher: name: arXiv
Year: 2015
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D20

description: We compute the intersection cohomology of the universal imploded cross-section of SU(3), and show that it is different from the intersection cohomology of a point.
description: 8 pages
Cartilla práctica para la prevención de Riesgo Psicosocial MEDICUC IPS LIMITADA
Creators: name: Arturo DePablos, Andrea Carolina
name: Sánchez Chaparro, Luis Antonio
name: Fernández Carrillo, Nasly Karolin
name: Pérez Fernández, Blanca Johanna
Publisher: name: Zenodo
Year: 2023
Subjects: Riesgo
Psicosocial
Resolución 2764 de 2022

description: La presente cartilla nace para dar cumplimiento al objetivo especifico No. 3 de la investigación que lleva por título Evaluación de los Factores de Riesgo Psicosocial en los colaboradores de la empresa MEDICUC IPS LIMITADA de acuerdo con la Resolución N°2764 de 2022. Esta cartilla va dirigida a los colaboradores de la empresa MEDICUC IPS, sin embargo, se puede tomar como referencia para implementarla en otras IPS a nivel nacional. El proyecto se enmarca en una línea de investigación denominada Gestión Social, Participación y Desarrollo Comunitario, y con la sublínea Gestión de los actores en las condiciones de trabajo y salud, ambas establecidas por la Corporación Universitaria Minuto de Dios - UNIMINUTO. Finalmente, es importante tener en cuenta que el proyecto se ejecutó entre el mes de agosto del año 2022 al mes de mayo del año 2023.
SweetHomeCR.pdf
Creators: name: Sweet Home Costa Rica
Publisher: name: Figshare
Year: 2018
Subjects: subject: 200202 Asian Cultural Studies
subject: FOS: Other humanities
subject: 200304 Central and Eastern European Languages (incl. Russian)
subject: FOS: Languages and literature
subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications
subject: 200524 Comparative Literature Studies
subject: 200204 Cultural Theory
subject: 200403 Discourse and Pragmatics
subject: 200303 English as a Second Language
subject: 200307 German Language
subject: 200309 Italian Language
subject: 200103 International and Development Communication
subject: 200305 Latin and Classical Greek Languages
subject: 200510 Latin and Classical Greek Literature
subject: 200499 Linguistics not elsewhere classified
subject: 200514 Literature in Spanish and Portuguese
subject: 200506 North American Literature
subject: 200320 Pacific Languages
subject: 200507 Pacific Literature
subject: 200210 Pacific Cultural Studies
subject: 200526 Stylistics and Textual Analysis

description: Sweet Home Costa Rica specializes in Property Management, Residential Leasing and Real Estate
Additional file 1 of Acute care pathway assessed through performance indicators during the COVID-19 pandemic in OECD countries (2020–2021): a scoping review
Creators: name: V. Carvalho, Ana Sofia
name: Broekema, Bente
name: Brito Fernandes, Óscar
name: Klazinga, Niek
name: Kringos, Dionne
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy

description: Additional file 1. Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) Checklist.
Two-dimensional topological insulator state in cadmium arsenide thin films
Creators: name: Lygo, Alexander C.
name: Guo, Binghao
name: Rashidi, Arman
name: Huang, Victor
name: Cuadros-Romero, Pablo
name: Stemmer, Susanne
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Two-dimensional topological insulators (2D TIs) are a highly desired quantum phase but few materials have demonstrated clear signatures of a 2D TI state. It has been predicted that 2D TIs can be created from thin films of three-dimensional TIs by reducing the film thickness until the surface states hybridize. Here, we employ this technique to report the first observation of a 2D TI state in epitaxial thin films of cadmium arsenide, a prototype Dirac semimetal in bulk form and a 3D TI in thin films. Using magnetotransport measurements with electrostatic gating, we observe a Landau level spectrum and quantum Hall effect that are in excellent agreement with those of an ideal 2D TI. Specifically, we observe a crossing of the zeroth Landau levels at a critical magnetic field. We show that the film thickness can be used to tune the critical magnetic field. Moreover, a larger change in film thickness causes a transition from a 2D TI to a 2D trivial insulator, just as predicted by theory. The high degree of tunability available in epitaxial cadmium arsenide heterostructures can thus be used to fine-tune the 2D TI, which is essential for future topological devices.
description: Accepted for publication in Physical Review Letters. Fixed issues with the display of Fig. 3 in the pdf in this version