cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Superfluid to Bose-glass transition in a 1D weakly interacting Bose gas
Creators: name: Fontanesi, Luca
name: Wouters, Michiel
name: Savona, Vincenzo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the one-dimensional Bose gas in spatially correlated disorder at zero temperature, using an extended density-phase Bogoliubov method. We analyze in particular the decay of the one-body density matrix and the behaviour of the Bogoliubov excitations across the phase boundary. We observe that the transition to the Bose glass phase is marked by a power-law divergence of the density of states at low energy. A measure of the localization length displays a power-law energy dependence in both regions, with the exponent equal to -1 at the boundary. We draw the phase diagram of the superfluid-insulator transition in the limit of small interaction strength.
description: 4 pages, 4 figures
Human strategy updating in evolutionary games
Creators: name: Traulsen, Arne
name: Semmann, Dirk
name: Sommerfeld, Ralf D.
name: Krambeck, Hans-Juergen
name: Milinski, Manfred
Publisher: name: arXiv
Year: 2010
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: Evolutionary game dynamics describes not only frequency dependent genetical evolution, but also cultural evolution in humans. In this context, successful strategies spread by imitation. It has been shown that the details of strategy update rules can have a crucial impact on evolutionary dynamics in theoretical models and e.g. significantly alter the level of cooperation in social dilemmas. But what kind of strategy update rules can describe imitation dynamics in humans? Here, we present a way to measure such strategy update rules in a behavioral experiment. We use a setting in which individuals are virtually arranged on a spatial lattice. This produces a large number of different strategic situations from which we can assess strategy updating. Most importantly, spontaneous strategy changes corresponding to mutations or exploration behavior are more frequent than assumed in many models. Our experimental approach to measure properties of the update mechanisms used in theoretical models will be useful for mathematical models of cultural evolution.
description: PNAS, in press
El miedo, el no y el secreto son palabras occidentales, desconocidas en nuestro idioma
Creators: name: Orefice, Paolo
Publisher: name: Studi sulla Formazione
Year: 2014

description: The interview to María Quiñelén, educator and medicine woman, fits into the work for the enhancement of the traditional knowledge by the UNESCO Chair at the University of Florence. It presents a valuable testimony on education Mapuche to the peace directly from the inside of this indigenous culture that still lives conflict situations in the context of Chile. The Mapuche education is of opposite sign to that of the West based on "fear", the "no" and the "secret", which generate uncertainty, dependency, foreignness, disagree. It feeds the experience of being part of the whole, which gradually diversified: the constraint with the whole and with others makes a people of peace, not invading. It is a community education respectful of others, which communicates everything with everyone, where everyone takes care of the head (mind), the spirit (life widespread in the past and present), the territory (the culture), feelings (the heart).
description: Studi sulla Formazione, Anno XVI, II-2013
Density-Wave and Antiferromagnetic States of Fermionic Atoms in Optical Lattices
Creators: name: Higashiyama, Takuji
name: Inaba, Kensuke
name: Suga, Sei-ichiro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the two-band effects on ultracold fermionic atoms in optical lattices by means of dynamical mean-field theory. We find that at half-filling the atomic-density-wave (ADW) state emerges owing to the two-band effects in the attractive interaction region, while the antiferromagnetic state appears in the repulsive interaction region. As the orbital splitting is increased, the quantum phase transitions from the ADW state to the superfluid state and from the antiferromagnetic state to the metallic state occur in respective regions. Systematically changing the orbital splitting and the interaction, we obtain the phase diagram at half-filling. The results are discussed using the effective boson model derived for the strong attractive interaction.
description: 7 pages, 7 figures
Capture of interstellar objects I: the capture cross-section
Creators: name: Dehnen, Walter
name: Hands, Thomas O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the capture of interstellar objects (ISOs) by a planet-star binary with mass ratio $q\ll1$, semi-major axis $a_p$, orbital speed $v_c$, and eccentricity $e_p$. Very close (slingshot) and wide encounters with the planet are amenable to analytic treatment, while numerically obtained capture cross-sections $σ$ closely follow the analytical results even in the intermediate regime. Wide interactions can only generate energy changes $ΔE\lesssim qv_c^2$, when $σ\propto v_\infty^{-2} |\lnΔE|^{2/3}$ (with $v_\infty$ the ISO's incoming speed far away from the binary), which is slightly enhanced for $e_p>0$. Energy changes $ΔE\gtrsim qv_c^2$, on the other hand, require close interactions when $σ\propto (v_\infty ΔE)^{-2}$ hardly depending on $e_p$. Finally, at $ΔE\gtrsim v_c^2$, the cross-section drops to zero, depending on the planet's radius $R_p$ through the Safronov number $Θ=qa_p/R_p$. We also derive the cross-sections for collisions of ISOs with planets or moons.
description: 16 pages, to be published in MNRAS
CRPS Learning
Creators: name: Berrisch, Jonathan
name: Ziel, Florian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Econometrics (econ.EM)
subject: Statistics Theory (math.ST)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: FOS: Mathematics

description: Combination and aggregation techniques can significantly improve forecast accuracy. This also holds for probabilistic forecasting methods where predictive distributions are combined. There are several time-varying and adaptive weighting schemes such as Bayesian model averaging (BMA). However, the quality of different forecasts may vary not only over time but also within the distribution. For example, some distribution forecasts may be more accurate in the center of the distributions, while others are better at predicting the tails. Therefore, we introduce a new weighting method that considers the differences in performance over time and within the distribution. We discuss pointwise combination algorithms based on aggregation across quantiles that optimize with respect to the continuous ranked probability score (CRPS). After analyzing the theoretical properties of pointwise CRPS learning, we discuss B- and P-Spline-based estimation techniques for batch and online learning, based on quantile regression and prediction with expert advice. We prove that the proposed fully adaptive Bernstein online aggregation (BOA) method for pointwise CRPS online learning has optimal convergence properties. They are confirmed in simulations and a probabilistic forecasting study for European emission allowance (EUA) prices.
description: Accepted for publication in Journal of Econometrics
Regge calculus from a new angle
Creators: name: Bahr, Benjamin
name: Dittrich, Bianca
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In Regge calculus space time is usually approximated by a triangulation with flat simplices. We present a formulation using simplices with constant sectional curvature adjusted to the presence of a cosmological constant. As we will show such a formulation allows to replace the length variables by 3d or 4d dihedral angles as basic variables. Moreover we will introduce a first order formulation, which in contrast to using flat simplices, does not require any constraints. These considerations could be useful for the construction of quantum gravity models with a cosmological constant.
description: 8 pages
Self-induced chatter vibration of lathe tools
Creators: name: Chen, Mung
Publisher: name: University of British Columbia
Year: 2010

description: Self-excited chatter is a basic performance limitation in the machining of metals. Self-excited chatter was investigated both experimenttally and theoretically in the present research. An experimental lathe was constructed so as to obtain orthogonal one degree of freedom cutting. An experimental method developed by Brockley and Ko which enables the recording of a phase plane diagram and the force-velocity curve of one cycle of vibration was used. Experiments were carried out on 70-30 lead free brass workpiece disc with a high speed steel tool at surface speeds ranging from 2 in/sec to 20 in/sec. The results revealed that the force-velocity curve was 'loop' shaped. The chatter vibration was quasi-harmonic and the growth and decay of vibration amplitude with variation in surface speed was observed. Frictional quasi-harmonic vibration was observed to occur in the same speed range which suggested the concept that metal-cutting chatter could be friction actuated. The experimental force-velocity curve was employed in a graphical construction of the phase plane representation of the vibration. The constructed phase plane was in close agreement with the experimental recording.
Algebraic Topology Foundations of Supersymmetry and Symmetry Breaking in Quantum Field Theory and Quantum Gravity: A Review
Creators: name: Baianu, Ion C.
name: Glazebrook, James F.
name: Brown, Ronald
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A novel algebraic topology approach to supersymmetry (SUSY) and symmetry breaking in quantum field and quantum gravity theories is presented with a view to developing a wide range of physical applications. These include: controlled nuclear fusion and other nuclear reaction studies in quantum chromodynamics, nonlinear physics at high energy densities, dynamic Jahn-Teller effects, superfluidity, high temperature superconductors, multiple scattering by molecular systems, molecular or atomic paracrystal structures, nanomaterials, ferromagnetism in glassy materials, spin glasses, quantum phase transitions and supergravity. This approach requires a unified conceptual framework that utilizes extended symmetries and quantum groupoid, algebroid and functorial representations of non-Abelian higher dimensional structures pertinent to quantized spacetime topology and state space geometry of quantum operator algebras. Fourier transforms, generalized Fourier-Stieltjes transforms, and duality relations link, respectively, the quantum groups and quantum groupoids with their dual algebraic structures; quantum double constructions are also discussed in this context in relation to quasi-triangular, quasi-Hopf algebras, bialgebroids, Grassmann-Hopf algebras and higher dimensional algebra. On the one hand, this quantum algebraic approach is known to provide solutions to the quantum Yang-Baxter equation. On the other hand, our novel approach to extended quantum symmetries and their associated representations is shown to be relevant to locally covariant general relativity theories that are consistent with either nonlocal quantum field theories or local bosonic (spin) models with the extended quantum symmetry of entangled, 'string-net condensed' (ground) states.
Effect of shell thickness on exciton and biexciton binding energy of a ZnSe/ZnS core/shell quantum dot
Creators: name: Sen, Pratima
name: Chattopadhyay, Saikat
name: Andrews, J. T.
name: Sen, P. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The exciton and biexciton binding energy have been studied for a ZnSe/ZnS core/shell quantum dot using WKB (Wentzel-Kramers-Brillouin) approximation. The exciton binding energy increases for small shell thickness and for large thickness, the binding energy again starts decreasing. A similar result is obtained for biexcitons where for thicker shells, the biexciton attains antibonding.
description: 5 Figures
Confinement effects on glass forming liquids probed by DMA
Creators: name: Koppensteiner, J.
name: Schranz, W.
name: Puica, M. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Many molecular glass forming liquids show a shift of the glass transition T-g to lower temperatures when the liquid is confined into mesoporous host matrices. Two contrary explanations for this effect are given in literature: First, confinement induced acceleration of the dynamics of the molecules leads to an effective downshift of T-g increasing with decreasing pore size. Second, due to thermal mismatch between the liquid and the surrounding host matrix, negative pressure develops inside the pores with decreasing temperature, which also shifts T-g to lower temperatures. Here we present dynamic mechanical analysis measurements of the glass forming liquid salol in Vycor and Gelsil with pore sizes of d=2.6, 5.0 and 7.5 nm. The dynamic complex elastic susceptibility data can be consistently described with the assumption of two relaxation processes inside the pores: A surface induced slowed down relaxation due to interaction with rough pore interfaces and a second relaxation within the core of the pores. This core relaxation time is reduced with decreasing pore size d, leading to a downshift of T-g proportional to 1/d in perfect agreement with recent differential scanning calorimetry (DSC) measurements. Thermal expansion measurements of empty and salol filled mesoporous samples revealed that the contribution of negative pressure to the downshift of T-g is small (<30%) and the main effect is due to the suppression of dynamically correlated regions of size xi when the pore size xi approaches.
Kommunikation der Verlässlichkeit von Hochwasserfrühwarnung und Hochwasservorhersage in Baden-Württemberg
Creators: name: Bremicker, Manfred
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2014
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 58.2014,2 - ISSN 1439-1783
On the Validity of Steady-State for Nebular Phase Kilonovae
Creators: name: Pognan, Quentin
name: Jerkstrand, Anders
name: Grumer, Jon
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The radioactively powered transient following a binary neutron star (BNS) merger, known as a kilonova (KN), is expected to enter the steady-state nebular phase a few days after merger. Steady-state holds until thermal reprocessing time-scales become long, at which point the temperature and ionisation states need to be evolved time-dependently. We study the onset and significance of time-dependent effects using the non-local thermodynamic equilibrium (NLTE) spectral synthesis code SUMO. We employ a simple single-zone model with an elemental composition of Te, Ce, Pt and Th, scaled to their respective solar abundances. The atomic data are generated using the Flexible Atomic Code (FAC), and consist of energy levels and radiative transitions, including highly forbidden lines. We explore the KN evolution from 5 to 100 days after merger, varying ejecta mass and velocity. We also consider variations in the degree of electron magnetic field trapping, as well as radioactive power generation for alpha and beta decay (but omitting fission products). We find that the transition time, and magnitude of steady-state deviations are highly sensitive to these parameters. For typical KN ejecta, the deviations are minor within the time-frame studied. However, low density ejecta with low energy deposition show significant differences from $\sim 10$ days. Important deviation of the ionisation structure solution impacts the temperature by altering the overall line cooling. Adiabatic cooling becomes important at $t \geq 60$ days which, in addition to the temperature and ionisation effects, lead to the bolometric light curve deviating from the instantaneous radioactive power deposited.
description: 15 pages with 9 figures in main text. 31 pages with appendices. Accepted for publication in MNRAS
Capture of interstellar objects II: by the Solar system
Creators: name: Dehnen, Walter
name: Hands, Thomas O.
name: Schönrich, Ralph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty<4\,$km\,s$^{-1}$. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun's Galactic orbit, i.e.\ is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density $n_{iso}\sim0.1\,$au$^{-3}$, we estimate that in 1000 years the planets capture $\sim2$ ISOs (while $\sim17$ fall into the Sun), resulting in a population of $\sim8$ captured ISOs within 5\,au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture onto and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim2000\,$au for extensive periods.
description: 8 pages, to be published by MNRAS
Optimal PSF modeling for weak lensing: complexity and sparsity
Creators: name: Paulin-Henriksson, S.
name: Refregier, A.
name: Amara, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the impact of point spread function (PSF) fitting errors on cosmic shear measurements using the concepts of complexity and sparsity. Complexity, introduced in a previous paper, characterizes the number of degrees of freedom of the PSF. For instance, fitting an underlying PSF with a model with low complexity will lead to small statistical errors on the model parameters, however these parameters could suffer from large biases. Alternatively, fitting with a large number of parameters will tend to reduce biases at the expense of statistical errors. We perform an optimisation of scatters and biases by studying the mean squared error of a PSF model. We also characterize a model sparsity, which describes how efficiently the model is able to represent the underlying PSF using a limited number of free parameters. We present the general case and illustrate it for a realistic example of PSF fitted with shapelet basis sets. We derive the relation between complexity and sparsity of the PSF model, signal-to-noise ratio of stars and systematic errors on cosmological parameters. With the constraint of maintaining the systematics below the statistical uncertainties, this lead to a relation between the required number of stars to calibrate the PSF and the sparsity. We discuss the impact of our results for current and future cosmic shear surveys. In the typical case where the biases can be represented as a power law of the complexity, we show that current weak lensing surveys can calibrate the PSF with few stars, while future surveys will require hard constraints on the sparsity in order to calibrate the PSF with 50 stars.
description: accepted by A&A, 9 pages, 6 figures
Additional file 1 of Experimental evaluation of protection and immunogenicity of Streptococcus suis bacterin-based vaccines formulated with different commercial adjuvants in weaned piglets
Creators: name: Obradovic, Milan R.
name: Corsaut, Lorelei
name: Dolbec, Dominic
name: Gottschalk, Marcelo
name: Segura, Mariela
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Experimental design of the study. Experimental design of the study for evaluation of immunogenicity and protection of bacterin vaccines formulated with different adjuvants. The experimental design was consistent for all tested vaccine formulations. IP; intraperitoneal injection.
Automated Extended Aperture Photometry of K2 variable stars
Creators: name: Bódi, Attila
name: Szabó, Pál
name: Plachy, Emese
name: Molnár, László
name: Szabó, Róbert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Proper photometric data are challenging to obtain in the K2 mission of the Kepler space telescope due to strong systematics caused by the two-wheel-mode operation. It is especially true for variable stars wherein physical phenomena occur on timescales similar to the instrumental signals. We originally developed a method with the aim to extend the photometric aperture to be able to compensate the motion of the telescope which we named Extended Aperture Photometry (EAP). Here we present the outline of the automatized version of the EAP method, an open-source pipeline called autoEAP. We compare the light curve products to other photometric solutions for examples chosen from high-amplitude variable stars. Besides the photometry, we developed a new detrending method, which is based on phase dispersion minimization and is able to eliminate long-term instrumental signals for periodic variable stars.
description: 15 pages, 12 figures. Accepted for publication in PASP. Code available on GitHub: https://github.com/konkolyseismolab/autoeap. Light curve data available: https://konkoly.hu/KIK/data_en.html
A strategy to reduce the count of moment conditions in panel data GMM
Creators: name: Bontempi, Maria Elena
name: Mammi, Irene
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/05 Econometria

description: The problem of instrument proliferation and its consequences (overfitting of endogenous variables, bias of estimates, weakening of Sargan/Hansen test) are well known. The literature provides little guidance on how many instruments is too many. It is common practice to report the instrument count and to test the sensitivity of results to the use of more or fewer instruments.
Strategies to alleviate the instrument proliferation problem are the lag-depth truncation and/or the collapse of the instrument set (the latter being an horizontal squeezing of the instrument matrix). However, such strategies involve either a certain degree of arbitrariness (based on the ability and the experience of the researcher) or of trust in the restrictions implicitly imposed (and hence untestable) on the instrument matrix. The aim of the paper is to introduce a new strategy to reduce the instrument count. The technique we propose is statistically founded and purely datadriven and, as such, it can be considered a sort of benchmark solution to the problem of instrument proliferation. We apply the principal component analysis (PCA) on the instrument matrix and exploit the PCA scores as the instrument set for the panel generalized method-of-moments (GMM)estimation. Through extensive Monte Carlo simulations, under alternative characteristics of persistence of the endogenous variables, we compare the performance of the Difference GMM, Level and System GMM estimators when lag truncation, collapsing and our principal component-based IV reduction (PCIVR henceforth) are applied to the instrument set. The same comparison has been carried out with two empirical applications on real data: the first replicates the estimates of Blundell and Bond [1998]; the second exploits a new and large panel data-set in order to assess the role of tangible and intangible capital on productivity. Results show that PCIVR is a promising strategy of instrument reduction.
Additional file 1 of A primer of an in-depth resilience status for German medical graduates: results of a cross-sectional survey on the status quo of resilience among graduates of human medicine in Bavaria, Germany - a necessary step in building an emotionally equipped healthcare work-force
Creators: name: Kiesewetter, J.
name: Huber, J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. STROBE Statement—checklist of items that should be included in reports of observational studies.
MPEC 2024-S133 : 2024 SK3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SK3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
O Potencial formativo do desenvolvimento local na sociedade planetária. Do dualismo dos saberes do mundo
Creators: name: Orefice, Paolo
Publisher: name: Studi sulla Formazione
Year: 2010

description: This paper is a specific contribute in matter of human development, within  the scientific research at the international level. At the present time the priority  is to question ourself about which right model of  human development  and  inhabited territories is necessary , which are the constitutive components and how these  operate, the principal aim and of whom, which is the aim  and expected outcomes for the planet and for its inhabitants. Starting from these answers, obviously , we don’t think  to resolve the discussion about this matter,  in the world the discussion about this specific problem has still opened, my be We can  reflect on the sense, on  educational outcomes  can be on human development and, therefore, of  which education and of which knowledge for the men and the women of our planet we are speaking.
description: Studi sulla Formazione, Anno XII, I/II-2009
Data for Variability in Sleep and Affect (Ying et al.)
Creators: name: Ying, Fei
name: Sin, Nancy L.
name: DeLongis, Anita
name: Klaiber, Patrick
name: Wen, Jin H
name: Ong, Lydia
Publisher: name: Open Science Framework
Year: 2021
Subjects: subject: stress
subject: coronavirus
subject: COVID-19
subject: coping
subject: pandemic
subject: outbreak

description: Data for Variability in Sleep and Affect (Ying et al.)
A Study of VLSI Technology, Wafers and Impact on Nanotechnology
Creators: name: Gupta, Kiran
name: Nair, T. R. Gopalakrishnan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: This paper presents a detailed study of the present VLSI technological aspects, importance and their replacement or combination with the Nanotechnology in the VLSI world of silicon semiconductors. Here authors bring out the nanotechnology in Silicon world which invariably means shrinking geometry of CMOS devices to nano scale. This also refers to a new world of nanotechnology where chemists are working in manufacturing of carbon nanotubes , nano devices of varius materials of nano dimensions without even knowing how this could change the whole world of Si and CMOS technology and the world we live in.
description: 3 pages, 2 figures
Additional file 2 of Experimental evaluation of protection and immunogenicity of Streptococcus suis bacterin-based vaccines formulated with different commercial adjuvants in weaned piglets
Creators: name: Obradovic, Milan R.
name: Corsaut, Lorelei
name: Dolbec, Dominic
name: Gottschalk, Marcelo
name: Segura, Mariela
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2. Typical clinical signs of S. suis disease observed in piglets. Typical clinical signs of S. suis disease observed in piglets from the placebo Montanide™ ISA 61 VG control group. The intraperitoneal challenge model used in this experimental study was able to reproduce typical S. suis clinical signs of meningitis (head inclination and incoordination) (A); lameness, swollen joints (black arrow), and polyarthritis (B); and characteristic lesions of fibrinopurulent exudate in swollen joints observed during necropsy (black arrow) (C). S. suis serotype 2 was isolated from the joint cavities, meninges, liver and spleen of diseased animals. Pigs having a clinical score = 3 were humanely euthanized.
Antioxidative, anti-androgenic, and inhibitory activities of ethanolic extract of Annona muricata leaf on sex hormones-induced benign prostate hyperplasia through in vivo and in silico studies
Creators: name: Ebenyi, Lilian N.
name: Chigozie, Victor U.
name: Destiny, Demian
name: Anyanwu, Chidinma B.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biochemistry
Cell Biology
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Benign prostate hyperplasia (BPH) remains one of the major age-related urological problems in the world. Annona muricata (soursop) leaf has been reported to exhibit antiproliferative, antioxidant, and anti-inflammatory activities, among others, in the literature. Here, we aimed to unravel the antioxidative, antiandrogenic, and inhibitory activities of the ethanol extract of Annona muricata leaf (EEAML) on sex hormones-induced benign prostate hyperplasia (BPH) through in vivo and in silico studies. Thirty-six male rats were segmented into six groups of six animals each, the control group received water, and the BPH group and the remaining four groups were parentally infused with testosterone (T) and oestradiol (E2) (0.08 and 0.04 mg/Kgbwt) once daily for 28 days to induce BPH. After that, the control and BPH groups received water and normal saline, while the remaining four groups received finasteride (FIN) (0.1 mg/kgbwt) and EEAML (200, 400, and 800 mg/kgbwt) for another 28 days before sacrifice, and serum was collected for biochemical analysis. Additionally, the active ingredients of EEAML were identified using a Gas Chromatography Flame Ionisation Detector (GC-FID) followed by molecular docking (MD) against the human androgen receptor (hAR) target, and ADMET analysis of selected EEAML compounds was carried out. EEAML (200, 400, and 800 mg/kgbwt) restored the T and E2-induced depletion of reduced glutathione level, superoxide dismutase and catalase activities, and elevation of malondialdehyde, prostate-specific antigen, testosterone, and dihydrotestosterone levels in the serum of BPH rats. GC-FID analysis of EEAML showed the presence of 21 compounds from which 15 compounds were subjected to MD revealing that flavone, followed by ribalinidine, flavonone, anthocyanin, and naringenin displayed desirable binding affinities against the hAR target. ADMET analysis of these top-five EEAML compounds revealed that they were excellent oral bioavailable drug candidates with predicted minimal toxicities. In conclusion, EEAML exhibited antioxidative, antiandrogenic, and inhibitory activities owing to its phytoconstituents, which in turn could serve as drug templates for much better efficacy.
Identification of DNA Bases Using Nanopores Created in Finite-Size Nanoribbons from Graphene, Phosphorene, and Silicene
Creators: name: Henry, Matthew B.
name: Tumbapo, Mukesh
name: Tayo, Benjamin O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The success of graphene for nanopore DNA sequencing has shown that it is possible to explore other potential single-atom and few-atom thick layers of elemental 2D materials beyond graphene (e.g., phosphorene and silicene). Using density functional theory, we studied the interaction of DNA bases with nanopores created in finite-size nanoribbons from graphene, phosphorene, and silicene. We observe that binding energies of DNA bases using nanopores from phosphorene and silicene are generally smaller compared to graphene. The band gaps of phosphorene and silicene are significantly altered due to interaction with DNA bases compared to graphene. Our findings show that phosphorene and silicene are promising alternatives to graphene for DNA base detection using advanced detection principles such as transverse tunneling current measurement.
description: 14 pages
Bethe ansatz of the open spin-s XXZ chain with nondiagonal boundary terms
Creators: name: Murgan, Rajan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the open spin-s XXZ quantum spin chain with nondiagonal boundary terms. By exploiting certain functional relations at roots of unity, we propose the Bethe ansatz solution for the transfer matrix eigenvalues for cases where atmost two of the boundary parameters are set to be arbitrary and the bulk anisotropy parameter has values η= i π/3, i π/5,... We present numerical evidence to demonstrate completeness of the Bethe ansatz solutions derived for s = 1/2 and s = 1.
description: 29 pages; v2: footnote added; minor revisions
One-loop Superstring Amplitude From Integrals on Pure Spinors Space
Creators: name: Gomez, Humberto
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the Type II superstring the 4-point function for massless NS-NS bosons at one-loop is well known [1][14]. The overall constant factor in this amplitude is very important because it needs to satisfy the unitarity and S-duality conditions [14]. This coefficient has not been computed in the pure spinor formalism due to the difficulty to solve the integrals on the pure spinors space. In this paper we compute it by using the non-minimal pure spinor formalism and we will show that the answer is in perfect agreement with the one given in [14].
description: 28 pages
Comparison of the atmospheric properties above Dome A, Dome C, and the South Pole
Creators: name: Hagelin, S.
name: Masciadri, E.
name: Lascaux, F.
name: Stoesz, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The atmospheric properties above three sites on the Internal Antarctic Plateau are investigated for astronomical applications calculating the monthly median of the analysis-data from ECMWF (European Centre for Medium-Range Weather Forecasts) for an entire year (2005) thus covering all seasons. Radiosoundings extended on a yearly time scale from Dome C and the South Pole are used to verify the reliability of the analyses in the free atmosphere and to study the wind speed in the first 100 m as the analysis-data are not optimized for this altitude-range. The wind speed in the free atmosphere is obtained from the ECMWF analyses from all three sites. It appears that the strength of the wind speed in the upper atmosphere in winter is correlated to the distance of the site from the centre of the polar high. The Richardson number is employed to investigate the stability of the free atmosphere and, consequently, the probability to trigger thermodynamic instabilities above the three sites. We find that, in a large majority of the cases, the free atmosphere over the Internal Antarctic Plateau is more stable than at mid-latitude sites. Given these data we can obtain a ranking of the three sites with respect to wind speed, in the free atmosphere as well as in the surface layer, and with respect to the stability of the atmosphere, using the Richardson number.
description: SPIE 2008, Marseille, Conference proceedings, 12 pages
Nucleon Helicity Generalized Parton Distribution at Physical Pion Mass from Lattice QCD
Creators: name: Lin, Huey-Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The generalized parton distributions (GPDs) offer a window on three-dimensional imaging of the nucleon, providing understanding of how the fundamental properties of the nucleon, such as its mass and spin, arise from the underlying quark and gluon degrees of freedom. In this work, we present the first lattice calculation of the nucleon isovector helicity GPD at physical pion mass, using an $a \approx 0.09$ fm lattice ensemble with 2+1+1 flavors of highly improved staggered quarks generated by MILC Collaboration. We perform the GPD calculation in Breit frame using averaged nucleon boost momentum $P_z \approx 2.2$ GeV with nonzero momentum transfers in $[0.2,1.0]\text{ GeV}^2$. Nonperturbative renormalization in RI/MOM scheme is used to obtain the quasi-distribution before matching to the lightcone GPDs. The three-dimensional distribution $\tilde{H}(x,Q^2)$ is presented, along with the three-dimensional nucleon tomography and impact-parameter--dependent distribution for selected Bjorken $x$ at $μ=3$ GeV in $\overline{\text{MS}}$ scheme.
description: 9 pages, 6 figures
Additional file 2 of Genome-wide transcriptome analysis of the early developmental stages of Echinococcus granulosus protoscoleces reveals extensive alternative splicing events in the spliceosome pathway
Creators: name: Mohammadi, Mohammad Ali
name: Harandi, Majid Fasihi
name: McManus, Donald P.
name: Mansouri, Mehdi
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file2: Figure S1. High-resolution version of Fig. 2; reverse transcription PCR validation of skipped exon (SE) and retained intron (RI) events in the early developmental stages of E. granulosus protoscoleces at different time points after induction to strobilar development. Figures S2–S6. A comparison of the amplification sites for each selected AS event of different isoforms
Demonstration of a bright and compact source of tripartite nonclassical light
Creators: name: Allevi, Alessia
name: Bondani, Maria
name: Paris, Matteo G. A.
name: Andreoni, Alessandra
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrate the nonclassical photon number correlations expected in tripartite continuous variable states obtained by parametric processes. Our scheme involves a single nonlinear crystal, where two interlinked parametric interactions take place simultaneously, and represents a bright and compact source of a sub-shot-noise tripartite light field. We analyze the effects of the pump intensities on the numbers of detected photons and on the amount of noise reduction in some details, thus demonstrating a good agreement between the experimental data and a single-mode theoretical description.
description: submitted to "Physical Review A"
Experimental and theoretical studies of the behaviour of an H-ion beam during injection and acceleration in the TRIUMF central region model cyclotron
Creators: name: Root, Laurence Wilbur
Publisher: name: University of British Columbia
Year: 2010

description: A comparison is made between the experimental and theoretical behaviour of the H" beam in the TRIUMF central region cyclotron. The axial injection process and the first six accelerated turns are studied in detail. In order to optimize the cyclotron performance the phase space emittance of the beam at the injection line exit must be matched to the central region acceptances. To this end,a theoretical study was made of the ion optical properties of the injection elements: the magnet bore, the spiral electrostatic inflector, the electrostatic deflector and the first radio-frequency accelerating gap. In many cases these results were confirmed by experimental observations. It was also shown theoretically that by a suitable choice of the accelerating gap, under optimum conditions, 10% of the injected beam can be directed within the radial acceptance and 30% within the vertical acceptances. The effects of a chopper and buncher in the injection line were also measured. A minimum pulse length of approximately 2.5 nsec was obtained with a bunching factor of 3-0. To accelerate a beam to full radius, vertical steering had at first to be provided by means of asymmetrically-powered trim coils and electrostatic deflection plates for each turn. The steering required is known to be consistent with the effects of magnetic field asymmetries and dee misalignments measured later. The size and shape of the vertical beam envelopes were found to be consistent with theory. The vertical tune vz was estimated to be 0.17 ± 0.03 for 20 deg phase ions. This agreed with the predicted value of 0.17- The transition phase which separates the vertically-focused and defocused phases was estimated to be -3 ± 3 deg, while the predicted value was 0 deg. The radial beam diagnostic techniques used for determining proper centring and isochronous operating conditions are discussed. With these techniques it was possible to centre a 30 deg phase interval to within 0.15 in., which was the approximate uncertainty in our measurements. A simplified treatment of radia 1 - longitudinal coupling is given and used to explain qualitatively the behaviour of a small emittance beam. The effects of space charge on the first six accelerated turns are calculated. For a beam occupying a phase width of 30 deg, these effects are predicted to be negligible for average accelerated currents below 100 uA. The experimental observations made on high-current beams are described.; prior to the shutdown of the cyclotron beams of up to 1^0 uA average current were accelerated.
title: KindLink : application that promotes volunteering using .NET technology
title: ΚindLink : εφαρμογή προαγωγής του εθελοντισμού με τη χρήση της τεχνολογίας .NET
titleType: AlternativeTitle
Creators: name: Karagianniki, Vassiliki
name: Καραγιαννίκη, Βασιλική
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Διαχείριση εθελοντών
subject: Εφαρμογή ιστού
subject: ASP.NET Core
subject: Entity Framework Core
subject: Microsoft Identity

description: Στόχος της παρούσας πτυχιακής εργασίας είναι η ανάπτυξη μιας ολοκληρωμένης διαδικτυακής εφαρμογής για τη διευκόλυνση του συντονισμού εθελοντών και οργανώσεων που εμπλέκονται σε δραστηριότητες κοινωνικής και κοινοτικής υπηρεσίας. Η εφαρμογή στοχεύει στη διευκόλυνση της διαδικασίας αντιστοίχισης εθελοντών με τις κατάλληλες ευκαιρίες, παρακολούθησης της συμμετοχής των εθελοντών και αποτελεσματικής διαχείρισης των δραστηριοτήτων των οργανώσεων. Η μεθοδολογία που χρησιμοποιήθηκε περιλάμβανε ανάλυση απαιτήσεων, σχεδιασμό συστήματος, υλοποίηση και δοκιμή. Τα βασικά βήματα που ακολουθήθηκαν περιλάμβαναν τη συγκέντρωση απαιτήσεων χρήστη, το σχεδιασμό διεπαφών χρήστη, την υλοποίηση λειτουργιών backend χρησιμοποιώντας ASP.NET Core και Entity Framework Core και τη διεξαγωγή επαναληπτικών δοκιμών και βελτίωσης. Τα κύρια αποτελέσματα αυτής της εργασίας περιλαμβάνουν την ανάπτυξη μιας λειτουργικής διαδικτυακής εφαρμογής με δυνατότητες όπως εγγραφή χρήστη, περιήγηση σε εθελοντικές ευκαιρίες, διαχείριση εκδηλώσεων και δυνατότητες κοινωνικής δικτύωσης.
Additional file 1 of Sequencing the CaSR locus in Pakistani stone formers reveals a novel loss-of-function variant atypically associated with nephrolithiasis
Creators: name: Ullah, Ihsan
name: Ottlewski, Isabel
name: Shehzad, Wasim
name: Riaz, Amjad
name: Ijaz, Sadaqat
name: Tufail, Asad
name: Ammara, Hafiza
name: Mane, Shrikant
name: Shril, Shirlee
name: Hildebrandt, Friedhelm
name: Zahoor, Muhammad Yasir
name: Majmundar, Amar J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Additional file 1: Flow diagram of genetic variant filtering analysis.
Isovector EMC effect explains the NuTeV anomaly
Creators: name: Cloët, I. C.
name: Bentz, W.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A neutron or proton excess in nuclei leads to an isovector-vector mean-field which, through its coupling to the quarks in a bound nucleon, implies a shift in the quark distributions with respect to the Bjorken scaling variable. We show that this result leads to an additional correction to the NuTeV measurement of sin^2(Theta_W). The sign of this correction is largely model independent and acts to reduce their result. Explicit calculation within a covariant and confining Nambu--Jona-Lasinio model predicts that this vector field correction accounts for approximately two-thirds of the NuTeV anomaly. We are therefore led to offer a new interpretation of the NuTeV measurement, namely, that it is further evidence for the medium modification of the bound nucleon wavefunction.
description: 4 pages, 2 figures
La paggeria: una scuola alla corte del principe
Creators: name: Vanni, Laura
Publisher: name: Studi sulla Formazione
Year: 2013

description: The text analyzes the organization of the “paggeria”: the school, in the modern age, welcomed the children of noble families, in the court, with the aim to teach good manners, in the service of the Lord and to the rules of cortigiania. In an appendix to the text shows the handwritten document, signed by Cosimo III de’ Medici, in 1670, alleging’ “Istruzione e Capitoli da osservarsi nell’educazione dei Signori Paggi rossi”, kept in the National Library of Florence.
description: Studi sulla Formazione, Anno XV, II-2012