cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The binary fractions in the massive young Large Magellanic Cloud star clusters NGC 1805 and NGC 1818
Creators: name: Li, Chengyuan
name: de Grijs, Richard
name: Deng, Licai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using high-resolution data sets obtained with the Hubble Space Telescope, we investigate the radial distributions of the F-type main-sequence binary fractions in the massive young Large Magellanic Cloud star clusters NGC 1805 and NGC 1818. We apply both an isochrone-fitting approach and chi^2 minimization using Monte Carlo simulations, for different mass-ratio cut-offs, q, and present a detailed comparison of the methods' performance. Both methods yield the same radial binary fraction profile for the same cluster, which therefore supports the robustness and applicability of either method to young star clusters which are as yet unaffected by the presence of multiple stellar populations. The binary fractions in these two clusters are characterized by opposite trends in their radial profiles. NGC 1805 exhibits a decreasing trend with increasing radius in the central region, followed by a slow increase to the field's binary-fraction level, while NGC 1818 shows a monotonically increasing trend. This may indicate dominance of a more complicated physical mechanism in the cluster's central region than expected a priori. Time-scale arguments imply that early dynamical mass segregation should be very efficient and, hence, likely dominates the dynamical processes in the core of NGC 1805. Meanwhile, in NGC 1818 the behavior in the core is probably dominated by disruption of soft binary systems. We speculate that this may be owing to the higher velocity dispersion in the NGC 1818 core, which creates an environment in which the efficiency of binary disruption is high compared with that in the NGC 1805 core.
description: 18 pages, 23 figures, accepted by MNRAS
Enantioselectivity of (321) chiral noble metal surfaces: A Density Functional Theory study of lactate adsorption
Creators: name: Franke, J. -H.
name: Kosov, D. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The adsorption of the chiral molecule lactate on the intrinsically chiral noble metal surfaces Pt(321), Au(321) and Ag(321) is studied by Density Functional Theory calculations. We use the oPBE-vdW functional which includes van der Waals forces on an ab initio level. It is shown that the molecule binds via its carboxyl and the hydroxyl oxygen atoms to the surface. The binding energy is larger on Pt(321) and Ag(321) than on Au(321). An analysis of the contributions to the binding energy of the different molecular functional groups reveals that the deprotonated carboxyl group contributes most to the binding energy, with a much smaller contribution of the hydroxyl group. The Pt(321) surface shows considerable enantioselectivity of 0.06 eV. On Au(321) and Ag(321) it is much smaller if not vanishing. The chiral selectivity of the Pt(321) surface can be explained by two factors. First, it derives from the difference in van der Waals attraction of L- and D-lactate to the surface that we trace to differences in the binding energy of the methyl group. Second, the multi-point binding pattern for lactate on the Pt(321) surface is sterically more sensitive to surface chirality and also leads to large binding energy contributions of the hydroxyl group. We also calculate the charge transfer to the molecule and the work function to gauge changes in electronic structure of the adsorbed molecule. The work function is lowered by 0.8 eV on Pt(321) with much smaller changes on Au(321) and Ag(321).
FlowPhotoChem workshop presentation: "Scaling-up a Photo-electrocatalytic System for CO2 Capture and Conversion to Oxo-products: the SunCoChem approach"
Creators: name: Simelys, Hernández
Publisher: name: Zenodo
Year: 2024

description: SunCoChem’s technical coordinator and associate professor from Politecnico di Torino, Simelys Hernández, presented the project’s approach for scaling-up a photo-electrocatalytic system for CO2 capture and conversion to oxo-products at the 2nd Exploitation Workshop organised by FlowPhotoChem, and held online and in Kampala, Uganda, on 10-11 September 2024. 
description: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 862192. This document reflects only the author’s view and the European Commission is not responsible for any use that may be made of the information it contains.
M1.7 - First synchronisation workshop
Creators: name: Grootveld, Marjan
name: Pittonet Gaiarin, Sara
name: Davidson, Joy
name: Dillo, Ingrid
name: O'Connor, Ryan
name: Marjamaa-Mankinen, Liisa
name: Verburg, Maaike
name: Jonquet, Clement
Publisher: name: Zenodo
Year: 2023
Subjects: FAIR
FAIR data
FAIR-IMPACT
Synchronisation Force

description: The FAIR-IMPACT Synchronisation Force workshops 2022-2024 bring together the various projects and actors in the EOSC and FAIR ecosystem to periodically assess the work undergoing around the FAIR-IMPACT focus areas. This Milestone concerns the 2022 workshop, with representatives from more than ninety initiatives. To set the stage for the workshop 2022, four topics were defined, which fit the FAIR-IMPACT core areas. Each topic focused on selected recommendations and ambitions from the FAIRsFAIR White Paper (2021), the SRIA (2021) and EOSC Multi-Annual Roadmap (2023-2024). The Milestone summarises highlighs and recommendations concerning: Metrics and assessing FAIRness Persistent Identifiers Trustworthy and FAIR-enabling repositories Metadata, semantics and interoperability Three versions are included: the formal project milestone plus two public versions: print-ready and for the web.
A global and superlinearly convergent algorithm for nonlinear nondifferential convex programming problems with a generalized Armijo line-search
Creators: name: Zhang, Jiapu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper presents a new generalized Armijo's line-search method, and combines it with a phi-regulation defined to obtain a new algorithm solving the very general non-linear non-smooth convex programming. For the algorithm designed, the global convergence is proved and the algorithm has super-linear convergent rate under very weak conditions. This paper generalized the results of reference "Fukushima M and Qi LQ (1996) SIAM Journal of Optimization 6: 1106-20".
Distribution of the roots of the equations $Z(t)=0$, $Z'(t)=0$ in the theory of the Riemann zeta-function
Creators: name: Moser, Jan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Let the symbols $\{γ\},\ \{t_0\};\ t_0\not=γ$ denote the sequences of the roots of the equations $$Z(t)=0,\quad \text{and}\qquad Z'(t)=0,$$ respectively, and $$m(t_0)=\min\{γ"-t_0,t_0-γ'\},\quad Q(t_0)=\max\{γ"-t_0,t_0-γ'\},\quad γ'
Beam steering and topological transformations driven by interactions between discrete vortex and fundamental solitons
Creators: name: Gan, Xuetao
name: Zhang, Peng
name: Liu, Sheng
name: Xiao, Fajun
name: Zhao, Jianlin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study coherent and incoherent interactions between discrete vortex and fundamental solitons in two-dimensional photonic lattices, presenting a new scheme for all-optical routings and topological transformations of vorticities. Due to the multi-lobe intensity and step-phase structure of the discrete vortex soliton, the coherent soliton-interactions allow both solitons to be steered into multiple different possible destination ports depending on the initial phase of the discrete fundamental soliton. We show that charge-flipping of phase singularities and orbital angular momentum transfer can occur during the coherent interactions between the two solitons. For incoherent interactions, by controlling the relative intensities of the two solitons, we reveal that soliton-steering can be realized by either attracting the discrete fundamental soliton to four ports or localizing the four-lobe discrete vortex soliton into a ring soliton.
description: 7 pages, 5 figures
Metallicity field and selection effects in spatial distribution of the Galactic globular cluster system
Creators: name: Nikiforov, Igor' I.
name: Smirnova, Ol'ga V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The prospects for using the present-day data on metallicity of globular clusters (GCs) of the Galaxy to put constraints on the distance to the Galactic center, $R_0$, are considered. We have found that the GCs of the metal-rich and metal-poor subsystems separately form a bar-like structure in metallicity maps whose parameters are very close to those for the Galactic bar. The results indicate the existence of a bar component within both the metal-rich and metal-poor subsystems of GCs. The bar GCs could have formed within the already existing Galactic bar or could have later been locked in resonance with the bar. We conclude that substantial constraints on the $R_0$ value can be obtained only with non-axisymmetric models for the space distribution of GC metallicities with the allowance for the subdivision of GCs into subsystems. We found evidence for a bar extinction component that causes the observational incompleteness of GCs in the far side of the Galactic bar and in the "post-central" region. This selection effect should be taken into account when determining $R_0$ from the spatial distribution of GCs.
description: 8 pages, 8 figures. Accepted for publication in Astronomische Nachrichten (AN)
Strong variable linear polarization in the cool active star II Peg
Creators: name: Rosén, L.
name: Kochukhov, O.
name: Wade, G. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic fields of cool active stars are currently studied polarimetrically using only circular polarization observations. Including linear polarization in the reconstruction of stellar magnetic fields allows more information about the magnetic field to be extracted and significantly improves the reliability of stellar magnetic field maps. The goal of this study is to initiate systematic observations of active stars in all four Stokes parameters and to identify cool stars for which linear polarization can be detected at a level sufficient for Zeeman Doppler imaging (ZDI). Four active RS CVn binaries, II Peg, HR 1099, IM Peg, and sigma Gem, were observed with the ESPaDOnS spectropolarimeter at the Canada-France-Hawaii Telescope during a time period from February 2012 to January 2013. The least-squares deconvolution procedure was applied to derive mean polarization profiles of all four Stokes parameters. Linear polarization was detected in all four stars in at least one observation. At the same time, II Peg showed an exceptionally strong and highly variable linear polarization signature throughout all observations. This establishes II Peg as the first promising target for ZDI in all four Stokes parameters and suggests the feasibility of such an analysis with existing equipment for at least a few of the most active cool stars.
description: 5 pages, 2 figures, 1 table; Accepted for publication in MNRAS
Long-term observation of current at the mouth of Tokyo Bay
Creators: name: Hosokawa, Shinya
name: Okura, Shota
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Current patterns at the mouth of Tokyo Bay have been observed since the 1970s. However, earlier studies using short-term observations and numerical analyses were too limited in their spatiotemporal scale. This study analyzed long-term observations (over a decade) obtained using an acoustic Doppler current profiler mounted on a ferry that crosses the mouth of the bay. This long-term observation dataset revealed that tidal currents dominated at the bay mouth, and that an estuarine circulation of residual current was associated with inflow into the bay along topographic pathways formed by the Tokyo Submarine Canyon and the Uraga Channel. The water volume of the inflow was substantially greater than the discharge of the four major rivers flowing into Tokyo Bay. Although the mean residual current of the surface layer on the east side was outflow, it was variable with substantial and frequent inflow from the ocean, which might have caused an oceanic environment on the east side. Analysis of the long-term observations elucidated the spatial mean picture and temporal variability of the current patterns at the mouth of Tokyo Bay. This improved knowledge and the extended dataset will help answer remaining questions regarding the water quality in Tokyo Bay.
A new approach to multi-frequency synthesis in radio interferometry
Creators: name: Junklewitz, H.
name: Bell, M. A.
name: Enßlin, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a new approach to multi-frequency synthesis in radio astronomy. Using Bayesian inference techniques, the new technique estimates the sky brightness and the spectral index simultaneously. In principle, the bandwidth of a wide-band observation can be fully exploited for sensitivity and resolution, currently only limited by higher order effects like spectral curvature. Employing this new approach, we further present a multi-frequency extension to the imaging algorithm RESOLVE. In simulations, this new algorithm outperforms current multi-frequency imaging techniques like MS-MF-CLEAN.
description: 13 pages, 5 fugures, submitted to Astronomy and Astrophysics
The spread of the spectrum of a nonnegative matrix with a zero diagonal element
Creators: name: Drnovšek, Roman
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 15B48 15A42

description: Let $A = [a_{i j}]_{i,j=1}^n$ be a nonnegative matrix with $a_{1 1} = 0$. We prove some lower bounds for the spread $s(A)$ of $A$ that is defined as the maximum distance between any two eigenvalues of $A$. If $A$ has only two distinct eigenvalues, then $s(A) \ge \frac{n}{2(n-1)} \, r(A)$, where $r(A)$ is the spectral radius of $A$. Moreover, this lower bound is the best possible.
description: The paper will appear in Linear Algebra and its Applications
Controlling the Spontaneous Emission Rate of Monolayer MoS$_2$ in a Photonic Crystal Nanocavity
Creators: name: Gan, Xuetao
name: Gao, Yuanda
name: Mak, Kin Fai
name: Yao, Xinwen
name: Shiue, Ren-Jye
name: van der Zande, Arend
name: Trusheim, Matthew
name: Hatami, Fariba
name: Heinz, Tony F.
name: Hone, James
name: Englund, Dirk
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on controlling the spontaneous emission (SE) rate of a molybdenum disulfide (MoS$_2$) monolayer coupled with a planar photonic crystal (PPC) nanocavity. Spatially resolved photoluminescence (PL) mapping shows strong variations of emission when the MoS$_2$ monolayer is on the PPC cavity, on the PPC lattice, on the air gap, and on the unpatterned gallium phosphide substrate. Polarization dependences of the cavity-coupled MoS$_2$ emission show a more than 5 times stronger extracted PL intensity than the un-coupled emission, which indicates an underlying cavity mode Purcell enhancement of MoS$_2$ SE rate exceeding a factor of 70.
description: 8 pages, 3 figures
Sensitivity analysis of the physics options in the Weather Research and Forecasting model for typhoon forecasting in Japan and its impacts on storm surge simulations
Creators: name: Shirai, Tomoki
name: Enomoto, Yota
name: Watanabe, Masashi
name: Arikawa, Taro
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Neuroscience
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry

description: Weather Research and Forecasting (WRF) model is useful for forecasting typhoons as an external force of storm surge forecasts. This study examines the variation in typhoon forecasts caused by different choices of arbitrary physics options in WRF and their influence on storm surge forecasts. Eight frequently used combinations of cloud microphysics and planetary boundary layers were extracted via a review of previous studies. Subsequently, sensitivity analyses of these physics options were performed, targeting nine typhoons that landed in Japan during 2015–2019. Additionally, we conducted case studies of storm surge ensemble forecasts in Tokyo Bay and Osaka Bay using WRF-simulated typhoons generated in the sensitivity analysis. As a result, the ensemble mean of the forecasts was comparable to the storm surge reanalysis simulation results obtained using an empirical typhoon model wherein the best track data is integrated to reproduce atmospheric fields. This may be attributed to the fact that the typhoon parameters (intensity, size, approaching angle, and velocity) obtained from the best track at landfall were generally within the range of the parameters that were simulated using WRF.
Detection of a variable QPO at ~41 mHz in the Be/X-ray transient pulsar 4U 0115+634
Creators: name: Dugair, Moti R.
name: Jaisawal, Gaurava K.
name: Naik, Sachindra
name: Jaaffrey, S. N. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the detection of quasi-periodic oscillation (QPO) at ~41 mHz in the transient high-mass Be/X-ray binary pulsar 4U~0115+634 using data from the Rossi X-Ray Timing Explorer (RXTE) observatory. The observations used in the present work were carried out during X-ray outbursts in 1999 March-April, 2004 September-October and 2008 March-April. This frequency of the newly detected QPO was found to vary in 27-46 mHz range. This ~41 mHz QPO was detected in four of the 36 pointed RXTE Proportional Counter Array (PCA) observations during 1999 outburst where as during 2004 and 2008 outbursts, it was detected in four and three times out of 33 and 26 observations, respectively. Though QPOs at ~2 mHz, and ~62 mHz were reported earlier, the ~41 mHz QPO and its first harmonic were detected for the first time in this pulsar. There are three RXTE/PCA observations where multiple QPOs were detected in the power density spectrum of 4U~0115+634. Simultaneous presence of multiple QPOs is rarely seen in accretion powered X-ray pulsars. Spectral analysis of all the pointed RXTE/PCA observations revealed that the 3-30 keV energy spectrum was well described by Negative and Positive Power-law with EXponential cutoff (NPEX) continuum model along with interstellar absorption and cyclotron absorption components. During the three X-ray outbursts, however, no systematic variation in any of the spectral parameters other than the earlier reported anti-correlation between cyclotron absorption energy and luminosity was seen. Presence of any systematic variation of QPO frequency and rms of QPO with source flux were also investigated yielding negative results.
description: 8 pages, 8 figures, Accepted for publication in MNRAS
title: Adaptive changes to saccade amplitude and target localization do not require pre-saccadic target visibility
Creators: name: Heins, Frauke
name: Masselink, Jana
name: Scherer, Joshua‑Nikodemus
name: Lappe, Markus
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2024
Subjects: subject: 150 Psychology

description: The accuracy of saccadic eye movements is maintained by saccadic adaptation, a learning mechanism that is proposed to rely on visual prediction error, i.e., a mismatch between the pre-saccadically predicted and post-saccadically experienced position of the saccade target. However, recent research indicates that saccadic adaptation might be driven by postdictive motor error, i.e., a retrospective estimation of the pre-saccadic target position based on the post-saccadic image. We investigated whether oculomotor behavior can be adapted based on post-saccadic target information alone. We measured eye movements and localization judgements as participants aimed saccades at an initially invisible target, which was always shown only after the saccade. Each such trial was followed by either a pre- or a post-saccadic localization trial. The target position was fixed for the first 100 trials of the experiment and, during the following 200 trials, successively shifted inward or outward. Saccade amplitude and the pre- and post-saccadic localization judgements adjusted to the changing target position. Our results suggest that post-saccadic information is sufficient to induce error-reducing adaptive changes in saccade amplitude and target localization, possibly reflecting continuous updating of the estimated pre-saccadic target location driven by postdictive motor error.
description: Finanziert über die DEAL-Vereinbarung mit Wiley, Springer oder Elsevier 2019–2023.
The empirical cost of optimal incomplete transportation
Creators: name: del Barrio, Eustasio
name: Matrán, Carlos
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider the problem of optimal incomplete transportation between the empirical measure on an i.i.d. uniform sample on the d-dimensional unit cube $[0,1]^d$ and the true measure. This is a family of problems lying in between classical optimal transportation and nearest neighbor problems. We show that the empirical cost of optimal incomplete transportation vanishes at rate $O_P(n^{-1/d})$, where n denotes the sample size. In dimension $d\geq3$ the rate is the same as in classical optimal transportation, but in low dimension it is (much) higher than the classical rate.
description: Published in at http://dx.doi.org/10.1214/12-AOP812 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Stochastic source modeling and tsunami simulations of cascadia subduction earthquakes for Canadian Pacific coast
Creators: name: Goda, Katsuichiro
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: This study presents new stochastic source models for the Cascadia subduction earthquakes in the Pacific Northwest, which can trigger massive tsunamis along the shoreline of Vancouver Island. An extensive set of 5,000 stochastic source models is generated for the moment magnitude ranges between 8.1 and 9.1, and regional tsunami hazard simulations are performed at the grid resolution of 270 m. The results from the stochastic tsunami simulations are characterized by evaluating the regional tsunami hazard metric that is based on the geometric mean of the maximum wave heights along the Vancouver Island coast. Subsequently, using the probability distribution of the regional tsunami hazard parameter, representative source models are identified by capturing the average as well as rare rupture cases and then detailed tsunami hazard results, such as maximum wave height maps and wave profiles at specific locations, are examined. Numerical results highlight the directivity effects of tsunami generation and wave propagation on tsunami hazards along the Canadian Pacific coast and the earthquake source characterizations in terms of fault geometry and earthquake slip distribution. The developed source models and tsunami simulation results serve as the first step for performing probabilistic tsunami hazard analysis for the Cascadia subduction zone.
ASSESSMENT OF MAGNITUDE OF HIV AND SYPHILIS AND ASSOCIATED FACTORS AMONG PREGNANT WOMEN ATTENDING ANTENATAL CARE IN WOLEMERA DISTRICT
Creators: name: Abenezer Chegen
Publisher: name: Zenodo
Year: 2017

description: Background

Sexually transmitted infections (STIs) are highly prevalent in Ethiopia among people who are in their reproductive and productive prime. Among STIs, syphilis and HIV are significant public health problems in Ethiopia and causes several adverse pregnancy outcomes. Thus this study aims to assess magnitude of both infections among pregnant women attending antenatal care in Wolemera District, Oromia region.

General Objective

To assess the magnitude of syphilis and HIV among pregnant women attending antenatal care services (ANC) in Wolemera district.

Method

Facility based retrospective cross-sectional study (record review) was carried out in Wolemera district public health centers stratifying facilities by place. Record of 1665 pregnant women who had attended antenatal care clinic (ANC) from January 2013 to December 2015 was extracted from individual ANC chart using structured checklist. Descriptive, binary and logistic regression analyses were conducted using SPSS version 21.
The witness of sudden change of geometric quantum correlation
Creators: name: Yu, Chang-shui
name: Li, Bo
name: Fan, Heng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we give a sufficient and necessary condition (witness) for the sudden change of geometric quantum discord by considering mathematical definition of the discontinuity of a function. Based on the witness, we can find out various sudden changes of quan- tum correlation by considering both the Markovian and the non-Markovian cases. In particular, we can accurately find out critical points of the sudden changes even though they are not quite obvious in the graphical representation. In addition, one can also find that sudden change of quantum correlation, like the frozen quantum correlation, strongly depends on the choice of the quantum correlation measure.
description: 14 pages, 6 figures. To appear in Quantum Information and Computation
Revolutionary Algorithms
Creators: name: Hochreiter, Ronald
name: Waldhauser, Christoph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: The optimization of dynamic problems is both widespread and difficult. When conducting dynamic optimization, a balance between reinitialization and computational expense has to be found. There are multiple approaches to this. In parallel genetic algorithms, multiple sub-populations concurrently try to optimize a potentially dynamic problem. But as the number of sub-population increases, their efficiency decreases. Cultural algorithms provide a framework that has the potential to make optimizations more efficient. But they adapt slowly to changing environments. We thus suggest a confluence of these approaches: revolutionary algorithms. These algorithms seek to extend the evolutionary and cultural aspects of the former to approaches with a notion of the political. By modeling how belief systems are changed by means of revolution, these algorithms provide a framework to model and optimize dynamic problems in an efficient fashion.
Direct and converse magnetoelectric effects in Metglas/LiNbO3/Metglas trilayers
Creators: name: Timopheev, A. A.
name: Vidal, J. V.
name: Kholkin, A. L.
name: Sobolev, N. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electromechanical and magnetoelectric properties of Metglas/LiNbO3/Metglas trilayers have been studied in the frequency range from 20 Hz to 0.4 MHz. A trilayer of Metglas/PMN-PT/Metglas prepared in the same way was used as a reference. Though PMN-PT has much larger charge piezocoefficients than LiNbO3 (LNO), the direct magnetoelectric voltage coefficient is found to be comparable in both trilayers due to the much lower dielectric permittivity of LNO. The magnitude of the direct magnetoelectric effect in the LNO trilayers is about 0.4 V/cm*Oe in the quasistatic regime and about 90 V/cm*Oe at electromechanical resonance. Calculations show that the magnetoelectric properties can be significantly improved (up to 500 V/cm*Oe) via controlling the cut angle of LNO, choosing the appropriate thickness ratio of the ferroelectric/ferromagnetic layers, and a better bonding between Metglas and LNO. Advantages of using LiNbO3-type ferroelectrics in magnetoelectric composites are discussed.
description: Submitted to JAP
Η ιστορία των Μοναστηριών του Νομού Μεσσηνίας και η επιβίωσή τους στο σήμερα
Creators: name: Αρβανίτη, Μαρία
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Μοναστήρια -- Ελλάδα -- Μεσσηνία -- Ιστορία
subject: Μοναστική και θρησκευτική ζωή -- Ελλάδα -- Μεσσηνία -- Ιστορία
subject: Ορθόδοξα Ανατολικά μοναστήρια -- Ελλάδα -- Μεσσηνία -- Ιστορία
subject: Ασκητισμός -- Ελλάδα -- Ιστορία
subject: Εκκλησιαστική αρχιτεκτονική -- Ελλάδα -- Μεσσηνία -- Ιστορία
subject: Χριστιανική τέχνη και συμβολισμός -- Ελλάδα -- Μεσσηνία
subject: Μοναστήρια
subject: Μοναχισμός
subject: Μοναχοί
subject: Αρχιτεκτονική
subject: Ζωγραφική
subject: Καλαμάτα
subject: Μεσσηνία
subject: Μάνη
subject: Monasteries
subject: Monasticism
subject: Monks
subject: Architecture
subject: FOS: Civil engineering
subject: Painting
subject: Kalamata
subject: Messinia
subject: Mani

description: Στόχος της μεταπτυχιακής μου εργασίας είναι η διερεύνηση και κατανόηση της οικονομικής, πολιτικής και κοινωνικής δράσης μοναστηριών της Μεσσηνίας δια μέσου των αιώνων. Αρχικά εστιάζουμε στην παρουσία του Χριστιανισμού, στις απαρχές του ασκητικού – μοναχικού βίου στην Πελοπόννησο καθώς και στη διοικητική οργάνωση της Εκκλησίας κατά την Πρώιμη και Μέση Βυζαντινή εποχή. Κατόπιν, παρουσιάζουμε την ιστορία της ίδρυσης και της ονομασίας ενός εκάστου μοναστηριού, τον τόπο όπου βρίσκεται, τους κτήτορές του, τα περιουσιακά του στοιχεία, τις δωρεές προς αυτό, τη ζωή σε αυτά μέσα από τις διακονίες και τα καθήκοντα των εγκαταβιούντων εκεί μοναχών. Τέλος, παραθέτουμε στοιχεία της αρχιτεκτονικής του, του ζωγραφικού και γλυπτού διακόσμου του.
Control of ribosome traffic by position-dependent choice of synonymous codons
Creators: name: Mitarai, Namiko
name: Pedersen, Steen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Messenger RNA encodes a sequence of amino acids by using codons. For most amino acids there are multiple synonymous codons that can encode the amino acid. The translation speed can vary from one codon to another, thus there is room for changing the ribosome speed while keeping the amino acid sequence and hence the resulting protein. Recently, it has been noticed that the choice of the synonymous codon, via the resulting distribution of slow- and fast-translated codons, affects not only on the average speed of one ribosome translating the messenger RNA (mRNA) but also might have an effect on nearby ribosomes by affecting the appearance of "traffic jams" where multiple ribosomes collide and form queues. To test this "context effect" further, we here investigate the effect of the sequence of synonymous codons on the ribosome traffic by using a ribosome traffic model with codon-dependent rates, estimated from experiments. We compare the ribosome traffic on wild type sequences and sequences where the synonymous codons were swapped randomly. By simulating translation of 87 genes, we demonstrate that the wild type sequences, especially those with a high bias in codon usage, tend to have the ability to reduce ribosome collisions, hence optimizing the cellular investment in the translation apparatus. The magnitude of such reduction of the translation time might have a significant impact on the cellular growth rate and thereby have importance for the survival of the species.
description: 12 pages, 6 Figures. This is an author-created, un-copyedited version of an article accepted for publication in Physical Biology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
Ο ρόλος της μοναρχίας στην κρίσιμη δεκαετία του 1910 και ο Εθνικός Διχασμός
Creators: name: Παπαμιχαήλ, Κωνσταντίνα
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Βενιζέλος , Ελευθέριος , 1864-1936
subject: Κωνσταντίνος -- Α' -- Βασιλιάς των Ελλήνων , 1868-1923
subject: Ελλάδα -- Πολιτική και διακυβέρνηση -- 1913-1917
subject: Μοναρχία
subject: Βενιζέλος
subject: Ρήξη
subject: Διχασμός
subject: Εθνική Άμυνα
subject: Προσωρινή Κυβέρνηση
subject: Monarchy
subject: Venizelos
subject: Breach
subject: Schism
subject: National Defence
subject: Provisional Government

description: Με το τέλος των Βαλκανικών πολέμων κυρίαρχο ήταν το ερώτημα της συμμετοχής ή μη της Ελλάδος στον Α’ Παγκόσμιο Πόλεμο. Τον Φεβρουάριο του 1915, ο Βενιζέλος ήρθε σε ρήξη με την μοναρχία καθώς οι συντηρητικές ιδέες του Κωνσταντίνου δεν μπορούσαν να συμβαδίσουν με τις εκσυγχρονιστικές ιδέες του πρώτου. Αποκορύφωμα της ρήξης αυτής αποτέλεσε η δημιουργία της Προσωρινής Κυβέρνησης στην Θεσσαλονίκη υπό την στήριξη των Συμμάχων. Ύστερα από πίεση, που ασκήθηκε, ο βασιλιάς Κωνσταντίνος εγκατέλειψε την χώρα και ο Βενιζέλος ανέλαβε πάλι την πρωθυπουργία. Συνέπεια όλων αυτών ήταν η Μικρασιατική Καταστροφή και η κληροδότηση του διχασμού έως τα νεότερα χρόνια.
SolarStat: Modeling Photovoltaic Sources through Stochastic Markov Processes
Creators: name: Miozzo, Marco
name: Zordan, Davide
name: Dini, Paolo
name: Rossi, Michele
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: In this paper, we present a methodology and a tool to derive simple but yet accurate stochastic Markov processes for the description of the energy scavenged by outdoor solar sources. In particular, we target photovoltaic panels with small form factors, as those exploited by embedded communication devices such as wireless sensor nodes or, concerning modern cellular system technology, by small-cells. Our models are especially useful for the theoretical investigation and the simulation of energetically self-sufficient communication systems including these devices. The Markov models that we derive in this paper are obtained from extensive solar radiation databases, that are widely available online. Basically, from hourly radiance patterns, we derive the corresponding amount of energy (current and voltage) that is accumulated over time, and we finally use it to represent the scavenged energy in terms of its relevant statistics. Toward this end, two clustering approaches for the raw radiance data are described and the resulting Markov models are compared against the empirical distributions. Our results indicate that Markov models with just two states provide a rough characterization of the real data traces. While these could be sufficiently accurate for certain applications, slightly increasing the number of states to, e.g., eight, allows the representation of the real energy inflow process with an excellent level of accuracy in terms of first and second order statistics. Our tool has been developed using Matlab(TM) and is available under the GPL license at[1].
description: Submitted to IEEE EnergyCon 2014
EVALUACIÓN DE LAS MEDIDAS Y ESTRATEGIAS IMPLEMENTADAS EN EL SECTOR GANADERO EN EL DEPARTAMENTO DE BOYACÁ CONTRA LA DEFORESTACIÓN DE BOSQUES PRIMARIOS Y LA DEGRADACIÓN DE SUELOS.
Creators: name: , Martinez
name: , Muñoz
Publisher: name: Zenodo
Year: 2020

description: EVALUACIÓN DE LAS MEDIDAS Y ESTRATEGIAS IMPLEMENTADAS EN EL SECTOR GANADERO EN EL DEPARTAMENTO DE BOYACÁ CONTRA LA DEFORESTACIÓN DE BOSQUES PRIMARIOS Y LA DEGRADACIÓN DE SUELOS. CON INFORMACION GRAFICA.
Design and analysis of demand-adapted railway timetables
Creators: name: Canca, David
name: Barrena, Eva
name: Algaba, Encarnación
name: Zarzo, Alejandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Railway scheduling and timetabling are common stages in the classical hierarchical railway planning process and they perhaps represent the step with major influence on user's perception about quality of service. This aspect, in conjunction with their contribution to service profitability, makes them a widely studied topic in the literature, where nowadays many efforts are focused on improving the solving methods of the corresponding optimization problems. However, literature about models considering detailed descriptions of passenger demand is sparse. This paper tackles the problem of timetable determination by means of building and solving a non-linear integer programming model which fits the arrival and departure train times to a dynamic behavior of demand. The optimization model results are then used for computing several measures to characterize the quality of the obtained timetables considering jointly both user and company points of view. Some aspects are discussed, including the influence of train capacity and the validity of Random Incidence Theorem. An application to the C5 line of Madrid rapid transit system is presented. Different measures are analyzed in order to improve the insight into the proposed model and analyze in advance the influence of different objectives on the resulting timetable.
Accretion through the inner edges of protoplanetary disks by a giant solid state pump
Creators: name: Kelling, Thorben
name: Wurm, Gerhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: At the inner edge of a protoplanetary disk solids are illuminated by stellar light. This illumination heats the solids and creates temperature gradients along their surfaces. Interactions with ambient gas molecules lead to a radial net gas flow. Every illuminated solid particle within the edge is an individual small gas pump transporting gas inward. In total the inner edge can provide local mass flow rates as high as $\dot{M} = 10^{-5} M_{\odot}$ yr$^{-1}$.
Additional file 1 of The attitude and behaviors of the different spheres of the community of the United Arab Emirates toward the clinical utility and bioethics of secondary genetic findings: a cross-sectional study
Creators: name: Rahma, Azhar T.
name: Abdullahi, Aminu S.
name: Graziano, Giulia
name: Elbarazi, Iffat
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Cancer
subject: Science Policy

description: Additional file 1: Supplementary.
Quantifying entanglement with scattering experiments
Creators: name: Marty, O.
name: Epping, M.
name: Kampermann, H.
name: Bruß, D.
name: Plenio, M. B.
name: Cramer, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how the entanglement contained in states of spins arranged on a lattice may be quantified with observables arising in scattering experiments. We focus on the partial differential cross-section obtained in neutron scattering from magnetic materials but our results are sufficiently general such that they may also be applied to, e.g., optical Bragg scattering from ultracold atoms in optical lattices or from ion chains. We discuss resonating valence bond states and ground and thermal states of experimentally relevant models--such as Heisenberg, Majumdar-Ghosh, and XY model--in different geometries and with different spin numbers. As a by-product, we find that for the one-dimensional XY model in a transverse field such measurements reveal factorization and the quantum phase transition at zero temperature.
ASSESSING THE RENAL AND HEPATOTOXIC EFFECTS OF BONNY LIGHT CRUDE OIL IN FOLKLORIC MEDICINE
Creators: name: Chidinma, R. Iwuanyanwu
name: Kingsley, J. Okoro
Publisher: name: AYDEN JOURNAL
Year: 2024
Subjects: folkloric medicine, crude oil, physicochemical, renaltoxicity, hepatotoxicity

description: The use of Bonny Light Crude Oil in the southern part of Nigeria for folkloric medicine and its renal/hepatic toxicity was investigated in wistar albino rats. Physicochemical analysis was carried out on the Bonny Light Crude Oil sample to ascertain its components. Fifteen rats of average weight 120g were used. The rats were grouped into 5 groups of 3 rats each and administered with 0.5, 1.0, 1.5 and 2.0mls per kg body weight respectively with group 1 as the control group.  The Bonny Light Crude Oil was administered 24-hourly for 7days using the intragastric via gavage mode of administration. The effect of the bonny light crude oil on the integrity of the renal and hepatic cells was assessed. The levels of the hepatic biomarker enzymes: Alanine Transferase, Aspartate Transaminase, Alkaline Phosphatase were significantly increased at the P≤0.05 level compared to the control. The renal biomarkers Creatinine and Blood urea levels also had a significant increase at the P≤ 0.05 level compared to the control. Histopathological examination indicates that Bonny Light Crude Oil had a considerable distortion on the integrity of the renal and hepatic cell of the Wistar Albino Rat
Gender and the Irish Family, 1852–1922
Creators: name: Murphy, Rachel A
Publisher: name: University of Limerick
Year: 2023
Subjects: History, heritage and archaeology

description: Post-Famine Irish family constructs were complex and hinged to a great degree on social class and household means. The term ‘family’ is hard to define since it may be used to describe a range of relationships, from related co-residents, to dispersed relatives, to a wider kin group. The concept of ‘family’ is temporally, culturally and socially informed, so it is important to understand what this signified in Ireland during the period of study, being cognisant that this might be quite different from Irish families in other eras, as well as non-Irish families in this or any other period.
IFREMER - EMODnet Chemistry Questionnaire regarding QA/QC procedures - 2022
Creators: name: IFREMER-Institut Français De Recherche Pour L'Exploitation De La Mer
Publisher: name: OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Oceanographic Section
Year: 2023
Subjects: Questionnaire regarding QA/QC procedures

description: EMODnet Chemistry Questionnaire to collect, from data originators, information regarding QA/QC procedures for seawater, biota, and sediment samples
Additional file 1 of Fluid balance control in critically ill patients: results from as-treated analyses of POINCARE-2 randomized trial
Creators: name: Mansouri, Adil
name: Buzzi, Marie
name: Gibot, Sébastien
name: Charpentier, Claire
name: Schneider, Francis
name: Louis, Guillaume
name: Outin, Hervé
name: Monnier, Alexandra
name: Quenot, Jean-Pierre
name: Badie, Julio
name: Argaud, Laurent
name: Bruel, Cédric
name: Soudant, Marc
name: Agrinier, Nelly
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1: Supplementary tables and figures.
Quantum geometry of del Pezzo surfaces in the Nekrasov-Shatashvili limit
Creators: name: Huang, Min-xin
name: Klemm, Albrecht
name: Reuter, Jonas
name: Schiereck, Marc
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use mirror symmetry, quantum geometry and modularity properties of elliptic curves to calculate the refined free energies in the Nekrasov-Shatashvili limit on non-compact toric Calabi-Yau manifolds, based on del Pezzo surfaces. Quantum geometry here is to be understood as a quantum deformed version of rigid special geometry, which has its origin in the quantum mechanical behaviour of branes in the topological string B-model. We will argue that, in the Seiberg-Witten picture, only the Coulomb parameters lead to quantum corrections, while the mass parameters remain uncorrected. In certain cases we will also compute the expansion of the free energies at the orbifold point and the conifold locus. We will compute the quantum corrections order by order on $\hbar$, by deriving second order differential operators, which act on the classical periods.
description: 53 pages, 8 figures
PATHOGENIC FUNGI IN PORT HARCOURT'S OPEN DRAINS: IMPLICATIONS FOR PUBLIC HEALTH
Creators: name: Michael, O. Ikpeme
Publisher: name: AYDEN JOURNAL
Year: 2024
Subjects: Pathogenic fungi, open drains, wastewater, pollution, diseases, public health

description: This study describes the occurrence of several fungal species in a wastewater from an open drainage system in Port Harcourt. Open drains create a lot of environmental and health problems and the frequency are increasing since these drains are usually clogged.  People dump their garbage into gutters thus making drainage systems the resting place for cans, bottles, plastics, and other household products and due to poor sanitation practices such water runs over the ground during rain storms and picks up feces and contaminates water resources.   Wastewater and sediment samples were collected from five (5) sampling sites along the Ntanwogba Creek drainage channel from which fungi were recovered by simple analytical techniques. The mean total fungal count ranged from 4.3x105 cfu/ml to1.7x106 cfu/ml for waste water and 5.7x104 cfu/g to 2.9x106 cfu/g for sediment samples. In total 77 isolates were identified across the open drains sampled and they include Cryptococcus neoformans and Rhizopus the most representative genera (36.4%) and (29.9% respectively) followed by Torulopsis glabrata (10.4%), Penicillium chrysogenum (7.8%), Aspergillus versicolor (5.2%), Apergillus niger (3.9%), while Mucor, Aspergillus temairic, Scopulariopsis and Phoma (1.3 % each) had the least and finally the species of Torulopsis and Cryptococcus were isolated as yeasts. The wastewater from the open drainage systems may play a role in fungal dissemination, including opportunistic pathogens causing infectious diseases. Besides, their significant ecological role in nutrient turn over in such environments cannot be overemphasized