cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fetal growth does not modify the relationship of infant weight gain with childhood adiposity and blood pressure in the Southampton women’s survey
Creators: name: Norris, Tom
name: Crozier, Sarah R.
name: Cameron, Noël
name: Godfrey, Keith M.
name: Inskip, Hazel
name: Johnson, William
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology

description: Background: Rapid infant weight gain is a risk factor for childhood obesity. This relationship may depend on whether infant weight gain is preceded by in-utero growth restriction. Aim: Examine whether fetal growth modifies the relationship between infant weight gain and childhood adiposity and blood pressure. Subjects and methods: 786 children in the Southampton Women’s Survey. We related infant weight gain (weight at 2 years-birth weight) to body mass index (BMI), %body fat, trunk fat (kg), systolic (SBP) and diastolic blood pressure (DBP) at age 6–7 years. Mean estimated fetal weight (EFW) between 19–34 weeks and change in EFW (19–34 weeks) were added to models as effect modifiers. Results: Infant weight gain was positively associated with all childhood outcomes. We found no evidence that these effects were modified by fetal growth (p > .1 for all interaction terms). For example, a 1 standard deviation (SD) increase in infant weight gain was associated with an increase in BMI z-score of 0.51 (95% CI 0.37;0.64) when EFW-change was set at -2 SD-scores compared with an increase of 0.41 (95% CI 0.27;0.54, p(interaction)=.48) when set at 2 SD-scores. Conclusion: The documented adverse consequences of rapid infant weight gain may occur regardless of whether growth was constrained in-utero.
Kepler-93b: A Terrestrial World Measured to within 120 km, and a Test Case for a New Spitzer Observing Mode
Creators: name: Ballard, Sarah
name: Chaplin, William J.
name: Charbonneau, David
name: Desert, Jean-Michel
name: Fressin, Francois
name: Zeng, Li
name: Werner, Michael W.
name: Davies, Guy R.
name: Aguirre, Victor Silva
name: Basu, Sarbani
name: Christensen-Dalsgaard, Jorgen
name: Metcalfe, Travis S.
name: Stello, Dennis
name: Bedding, Timothy R.
name: Campante, Tiago L.
name: Handberg, Rasmus
name: Karoff, Christoffer
name: Elsworth, Yvonne
name: Gilliland, Ronald L.
name: Hekker, Saskia
name: Huber, Daniel
name: Kawaler, Steven D.
name: Kjeldsen, Hans
name: Lund, Mikkel N.
name: Lundkvist, Mia
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the characterization of the Kepler-93 exoplanetary system, based on three years of photometry gathered by the Kepler spacecraft. The duration and cadence of the Kepler observations, in tandem with the brightness of the star, enable unusually precise constraints on both the planet and its host. We conduct an asteroseismic analysis of the Kepler photometry and conclude that the star has an average density of 1.652+/-0.006 g/cm^3. Its mass of 0.911+/-0.033 M_Sun renders it one of the lowest-mass subjects of asteroseismic study. An analysis of the transit signature produced by the planet Kepler-93b, which appears with a period of 4.72673978+/-9.7x10^-7 days, returns a consistent but less precise measurement of the stellar density, 1.72+0.02-0.28 g/cm^3. The agreement of these two values lends credence to the planetary interpretation of the transit signal. The achromatic transit depth, as compared between Kepler and the Spitzer Space Telescope, supports the same conclusion. We observed seven transits of Kepler-93b with Spitzer, three of which we conducted in a new observing mode. The pointing strategy we employed to gather this subset of observations halved our uncertainty on the transit radius ratio R_p/R_star. We find, after folding together the stellar radius measurement of 0.919+/-0.011 R_Sun with the transit depth, a best-fit value for the planetary radius of 1.481+/-0.019 R_Earth. The uncertainty of 120 km on our measurement of the planet's size currently renders it one of the most precisely measured planetary radii outside of the Solar System. Together with the radius, the planetary mass of 3.8+/-1.5 M_Earth corresponds to a rocky density of 6.3+/-2.6 g/cm^3. After applying a prior on the plausible maximum densities of similarly-sized worlds between 1--1.5 R_Earth, we find that Kepler-93b possesses an average density within this group.
description: 20 pages, 9 figures, accepted for publication in ApJ
Cross-Calibration of the XMM-Newton EPIC pn & MOS On-Axis Effective Areas Using 2XMM Sources
Creators: name: Read, A. M.
name: Guainazzi, M.
name: Sembay, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We aim to examine the relative cross-calibration accuracy of the on-axis effective areas of the XMM-Newton EPIC pn and MOS instruments. Spectra from a sample of 46 bright, high-count, non-piled-up isolated on-axis point sources are stacked together, and model residuals are examined to characterize the EPIC MOS-to-pn inter-calibration. The MOS1-to-pn and MOS2-to-pn results are broadly very similar. The cameras show the closest agreement below 1 keV, with MOS excesses over pn of 0-2% (MOS1/pn) and 0-3% (MOS2/pn). Above 3 keV, the MOS/pn ratio is consistent with energy-independent (or only mildly increasing) excesses of 7-8% (MOS1/pn) and 5-8% (MOS2/pn). In addition, between 1-2 keV there is a `silicon bump' - an enhancement at a level of 2-4% (MOS1/pn) and 3-5% (MOS2/pn). Tests suggest that the methods employed here are stable and robust. The results presented here provide the most accurate cross-calibration of the effective areas of the XMM-Newton EPIC pn and MOS instruments to date. They suggest areas of further research where causes of the MOS-to-pn differences might be found, and allow the potential for corrections to and possible rectification of the EPIC cameras to be made in the future.
description: 8 Pages, 2 figures (3 panels), 1 table. Accepted for publication in A&A
Ionization by XFEL radiation produces distinct structure in liquid water
Creators: name: Stransky, Michal
name: Lane, TJ
name: Gorel, A
name: Boutet, S
name: Schlichting, I
name: Mancuso, Adrian
name: Jurek, Z
name: Ziaja, B
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 40
subject: Engineering
classificationCode: 5104
subject: Condensed matter physics
classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: In the warm dense matter (WDM) regime, where condensed, gas, and plasma phases coexist, matter frequently exhibits unusual properties that cannot be described by contemporary theory. Experiments reporting phenomena in WDM are therefore of interest to advance our physical understanding of this regime, which is found in dwarf stars, giant planets, and fusion ignition experiments. Using 7.1 keV X-ray free electron laser radiation (nominally 5×105J/cm2), we produced and probed transient WDM in liquid water. Wide-angle X-ray scattering (WAXS) from the probe reveals a new ~9 Å structure that forms within 75 fs. By 100 fs, the WAXS peak corresponding to this new structure is of comparable magnitude to the ambient water peak, which is attenuated. Simulations suggest that the experiment probes a superposition of two regimes. In the first, fluences expected at the focus severely ionize the water, which becomes effectively transparent to the probe. In the second, out-of-focus pump radiation produces O1+ and O2+ ions, which rearrange due to Coulombic repulsion over 10 s of fs. Our simulations account for a decrease in ambient water signal and an increase in low-angle X-ray scattering but not the experimentally observed 9 Å feature, presenting a new challenge for theory.
Dark Matter Chaotic Inflation in Light of BICEP2
Creators: name: Mukaida, Kyohei
name: Nakayama, Kazunori
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We propose an economical model in which a singlet Z$_2$-odd scalar field accounts for the primordial inflation and the present dark matter abundance simultaneously in the light of recent BICEP2 result. Interestingly, the reheating temperature and the thermal dark matter abundance are closely connected by the same interaction between the singlet scalar and the standard model Higgs. In addition, the reheating temperature turns out to be quite high, $T_\text{R} \gtrsim 10^{12}$ GeV, and hence the thermal leptogenesis is compatible with this model. Therefore, it can be one of the simplest cosmological scenarios.
description: 13 pages, 1 figure; v2: minor corrections, references added
Precision asteroseismology of the pulsating white dwarf GD 1212 using a two-wheel-controlled Kepler spacecraft
Creators: name: Hermes, J. J.
name: Charpinet, S.
name: Barclay, Thomas
name: Pakstiene, E.
name: Mullally, Fergal
name: Kawaler, Steven D.
name: Bloemen, S.
name: Castanheira, Barbara G.
name: Winget, D. E.
name: Montgomery, M. H.
name: Van Grootel, V.
name: Huber, Daniel
name: Still, Martin
name: Howell, Steve B.
name: Caldwell, Douglas A.
name: Haas, Michael R.
name: Bryson, Stephen T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a preliminary analysis of the cool pulsating white dwarf GD 1212, enabled by more than 11.5 days of space-based photometry obtained during an engineering test of the two-reaction-wheel-controlled Kepler spacecraft. We detect at least 19 independent pulsation modes, ranging from 828.2-1220.8 s, and at least 17 nonlinear combination frequencies of those independent pulsations. Our longest uninterrupted light curve, 9.0 days in length, evidences coherent difference frequencies at periods inaccessible from the ground, up to 14.5 hr, the longest-period signals ever detected in a pulsating white dwarf. These results mark some of the first science to come from a two-wheel-controlled Kepler spacecraft, proving the capability for unprecedented discoveries afforded by extending Kepler observations to the ecliptic.
description: 8 pages, 4 figures, accepted for publication in The Astrophysical Journal
The Commons movement & artistic processes: towards a state of the art of the Commons movement
Creators: name: Blumer, Stéphane
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 440107
subject: Social and cultural anthropology
classificationCode: 360103
subject: Art theory

description: In this paper, the concept of the commons through two lexicons is unfolded within a collection of thinkers and their concepts. The commons are not to be used indiscriminately, but instead, should be contextualised and understood heuristically. The concept of the commons is here divided into two groups: human and non-human, with the aim of exploring their relationship. The separation between these groups produces a fragmented definition of the commons which needs to be re-contextualised with the semantics of the words related to the commons and the changes in their meanings over time. The paper discusses how the common can originally be understood as something ordinary, vulgar, or what is relevant to the majority, and highlights the distinction between what is simply common and what is truly universal by drawing on the work of Hegel and Montaigne. It further develops the “commons” and its historical appropriation by landowners in the form of enclosure acts in England which allowed landlords to expropriate lands that were once common property and turn them into private property, contributing to the initial accumulation of capital. In mirror to that process, the participle present, “commoning”, refers to the practices of communities using and managing common resources. Elinor Ostrom argues that commons-based resource management can be sustainable and effective, challenging the idea that state or market solutions are the only options for resource management. Ostrom also discusses the privatisation of resources as a result of neoliberal policies and the separation of regulation from the market. The paper concludes on the production of knowledge as a commons, and the challenges posed by intellectual property laws and the commercialisation of information.
Distant activity of comet C/2002 VQ94 (LINEAR): optical spectrophotometric monitoring between 8.4 and 16.8 au from the Sun
Creators: name: Korsun, Pavlo P.
name: Rousselot, Philippe
name: Kulyk, Irina V.
name: Afanasiev, Viktor L.
name: Ivanova, Oleksandra V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Spectrophotometric monitoring of distant comet C/2002 VQ94 (LINEAR) was performed with the 6-m telescope of SAO RAS and with the 2.5-m Nordic Optical Telescope between 2008 and 2013. During this period the comet was on the outbound segment of its orbit, between heliocentric distances of 8.36 au and 16.84 au. Analysis of the spectra revealed the presence of the CO$^+$ and N$_2^+$ emissions in the cometary coma at a distance of 8.36 au from the Sun. This distance is larger than ionic emissions have been detected in any previous objects. Only continuum, with no traces of emissions, was detected in the spectrum obtained in 2009 when the comet was at a distance of 9.86 au. From the spectra obtained in 2008, average column densities of 2.04$\times$10$^9$ mol cm$^{-2}$ for N$_2^+$ and 3.26$\times$10$^{10}$ mol cm$^{-2}$ for CO$^+$ were measured in the cometary coma. The derived values correspond to N$_2^+$/CO$^+$=0.06 within the projected slit. The parameter, which is used as an indicator of cometary activity, was measured as 2000 cm in 2008, and 800 cm in 2009 and 2011. The values correspond to dust production rates between 10-20 kg s$^{-1}$, 4-6 kg s$^{-1}$ and 3-5 kg s$^{-1}$ at 8.36, 9.86, and 13.40 au respectively. There is an obvious correlation between the decrease of the dust production rate of the nucleus and the disappearance of the emissions in the spectrum of C/2002 VQ94 (LINEAR) at heliocentric distances greater than 9 au. The colors and size of the nucleus of C/2002 VQ94 (LINEAR) were estimated from the images obtained during the late stage at a heliocentric distance of 16.84 au, when the activity had probable ceased. The B-V and V-R colors were estimated to be 1.07$\pm$0.05 and 0.54$\pm$0.03 respectively. The effective nucleus radius of 48$\pm$2 km is in agreement with the previously published results, obtained from the observations of the comet during its early inactive stage.
description: Accepted for publication in Icarus; 19 pages, 4 tables, 9 figures
Short-Term Radio Variability and Parsec-Scale Structure in a Gamma-Ray Narrow-Line Seyfert 1 Galaxy 1H 0323+342
Creators: name: Wajima, Kiyoaki
name: Fujisawa, Kenta
name: Hayashida, Masaaki
name: Isobe, Naoki
name: Ishida, Takafumi
name: Yonekura, Yoshinori
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We made simultaneous single-dish and very long baseline interferometer (VLBI) observations of a narrow-line Seyfert 1 galaxy (NLS1) 1H 0323+342, showing gamma-ray activity revealed by Fermi/LAT observations. We found significant variation of the total flux density at 8 GHz on the time scale of one month by the single-dish monitoring. The total flux density varied by 5.5% in 32 days, which is comparable to the gamma-ray variability time scale, corresponding to the variability brightness temperature of $7.0 \times 10^{11}$ K. The source consists of central and southeastern components on the parsec (pc) scale. The flux of only the central component decreased in the same way as the total flux density, indicating that the short-term radio variability, and probably the gamma-ray emitting region, is associated with this component. From the VLBI observations we obtained the brightness temperatures of greater than $(5.2 \pm 0.3) \times 10^{10}$ K, and derived the equipartition Doppler factor of greater than 1.7, the variability Doppler factor of 2.2, and the 8 GHz radio power of $10^{24.6}$ W Hz$^{-1}$. Combining them we conclude that acceleration of radio jets and creation of high-energy particles are ongoing in the central engine, and that the apparent very radio-loud feature of the source is due to the Doppler-boosting effect, resulting in the intrinsic radio loudness to be an order of magnitude smaller than the observed values. We also conclude that the pc-scale jet represents recurrent activity from the the spectral fitting and the estimated kinematic age of pc- and kpc-scale extended components with different position angle.
description: 16 pages, 7 figures, 5 tables, accepted for publication in ApJ
O'ZBEK MILLIY TO'QIMACHILIGIDA QO'LLANILADIGAN AN'ANAVIY ATAMALAR
Creators: name: Ibrohimova, Gulira'no
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada O'zbekistondagi to'qimachilik sanoatida qo'llaniladigan an'anaviy atamalar tahlil qilinadi. Tadqiqot manbalarni o'rganish va soha mutaxassislari bilan suhbatlar o'tkazish orqali amalga oshirilgan. Natijalar shuni ko'rsatadiki, o'zbek milliy to'qimachiligida qadimiy an'analardan kelib chiqqan ko'plab atamalar mavjud bo'lib, ular asrlar davomida avloddan-avlodga o'tib kelgan. Shuningdek, ayrim atamalar hududiy xususiyatlarga ega ekanligi aniqlandi. Maqola an'anaviy atamalarning kelib chiqishi, qo'llanilishi va ularni saqlab qolish zarurati haqida muhim ma'lumotlarni taqdim etadi.
Quantification of finite-temperature effects on adsorption geometries of $π$-conjugated molecules
Creators: name: Mercurio, G.
name: Maurer, R. J.
name: Liu, W.
name: Hagen, S.
name: Leyssner, F.
name: Tegeder, P.
name: Meyer, J.
name: Tkatchenko, A.
name: Soubatch, S.
name: Reuter, K.
name: Tautz, F. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The adsorption structure of the molecular switch azobenzene on Ag(111) is investigated by a combination of normal incidence x-ray standing waves and dispersion-corrected density functional theory. The inclusion of non-local collective substrate response (screening) in the dispersion correction improves the description of dense monolayers of azobenzene, which exhibit a substantial torsion of the molecule. Nevertheless, for a quantitative agreement with experiment explicit consideration of the effect of vibrational mode anharmonicity on the adsorption geometry is crucial.
description: 12 pages, 3 figures
A Systematic Methodology for Developing Discrete Event Simulation Models of Software Development Processes
Creators: name: Rus, Ioana
name: Neu, Holger
name: Münch, Jürgen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: So far there have been several efforts for developing software process simulators. However, the approaches for developing the simulators seem to have been ad-hoc and no systematic methodology exists. Since modeling and simulation in support of software development should become more popular (and there are signs that it does), there is a need for migrating modeling from craft to engineering. This article proposes such a systematic method, focused on the development of discrete simulation-based decision models, but extensible to other modeling approaches as well.
description: 7 pages
Dynamics of Order Parameter in Photoexcited Peierls Chain
Creators: name: Wang, Yong
name: Chen, Wei-Qiang
name: Zhang, Fu-Chun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The photoexcited dynamics of order parameter in Peierls chain is investigated by using a microscopic quantum theory in the limit where the hot electrons may establish themselves into a quasi-equilibrium state described by an effective temperature. The optical phonon mode responsible for the Peierls instability is coupled to the electron subsystem, and its dynamic equation is derived in terms of the density matrix technique. Recovery dynamics of the order parameter is obtained, which reveals a number of interesting features including the change of oscillation frequency and amplitude at phase transition temperature and the photo-induced switching of order parameter.
description: 5 pages, 3 figures
Board composition and corporate social responsibility: uncovering the effects of co-opted directors
Creators: name: Saleh, Ali I El
name: Jurdi, Doureige
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3507
subject: Strategy, management and organisational behaviour
classificationCode: 35
subject: Commerce, management, tourism and services
classificationCode: 3502
subject: Banking, finance and investment
classificationCode: 3501
subject: Accounting, auditing and accountability

description: Purpose: Prior research shows that co-opted directors adversely impact many corporate outcomes, yet little is known about these directors' impact on CSR performance. The authors investigate whether and how co-opted boards affect the firm's CSR score and component CSR scores. Design/methodology/approach: The authors use panel regression models to investigate this study's research questions and address endogeneity concerns using the system generalized method of moments (system GMM) and a quasi-natural experiment. Findings: The authors report new evidence showing that co-opted boards negatively impact CSR performance based on the CSR score. Results identify board characteristics that accentuate or moderate the effect of co-option on the CSR score and show that board independence, the presence of women on the board, and CEO duality positively and significantly impact the CSR score. These findings are robust across alternative measures of co-option and in the results of models addressing endogeneity concerns. An extended analysis utilizing CSR component scores reveals a significant negative impact of co-option on the environment component score using various measures of co-option and on employee relations, product quality, and human rights component scores using selected measures of co-option. Practical implications: Findings have implications for board structuring and composition for firms aiming at improving their CSR score. Originality/value: The study provides new evidence on the impact of co-opted boards on CSR performance. The results help inform stakeholders such as policymakers, executives and directors, shareholders, and capital market participants on how board composition affects socially responsible activities and performance and identify CSR component areas that require attention.
Nonlinearity management of photonic composites and observation of spatial-modulation instability due to quintic nonlinearity
Creators: name: Reyna, Albert S.
name: de Araújo, Cid B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a procedure for nonlinearity management of metal-dielectric composites. Varying the volume fraction occupied by silver nanoparticles suspended in acetone we could cancel the refractive index related to the third-order susceptibility, $χ_{eff}^{(3)}$, and the nonlinear refraction behavior was due to the fifth-order susceptibility, $χ_{eff}^{(5)}$. Hence, in a cross-phase modulation experiment, we demonstrated for the first time the effect of spatial-modulation- instability due to $χ_{eff}^{(5)}$. The results are corroborated with numerical calculations based on a generalized Maxwell-Garnet model.
description: 20 pages, 5 figures
Policy brief WP3 – Covid-19 and the Agricultural Sector: Temporary migration in the EU.
Creators: name: Matusz, Patrycja
Publisher: name: Zenodo
Year: 2023
Subjects: temporary migration
migrant workers
migrants agriculture
abusive labour arrangements

description: This policy brief aims to showcase the results of fieldwork conducted in Spain, Germany, Poland, and the Netherlands, with the research question: how responsive were the state institutions, in supporting the agricultural sector, in a time of emergency? Covid-19 hit the agricultural sector blocking the entrance of seasonal migrants in the EU countries with Poland and Spain depending on third-country nationals and Germany and the Netherlands on other EU nationals. Spain responded by focusing on bilateral agreements, Poland with the flexibility of stay of existing migrants in the country, and Germany and the Netherlands was less affected due to the intra-EU flows. Recruitment procedures seem to be the milestone for effective EU food production and maintenance of good living and working conditions for the workers. Covid-19 illustrated some malfunctions when it comes to hygiene, housing facilities, and flexibility of changing employers. Solutions are linked to the monitoring of the living and working conditions of the seasonal and circular workers, systematic checks of recruitment agencies and employers, flexible national and EU procedures for employers and employees, and promotion and maintenance of circular migration over seasonal as this strengthens the relations between migrants and locals. Overall, state institutions responded effectively in a time of emergency, however, long-lasting structural problems became more apparent proving the importance of safe and regulated seasonal migration schemes benefiting all involved parties.
description: This is the policy brief of work package 3, more information: http://admigov.eu
Marked empirical processes for non-stationary time series
Creators: name: Chan, Ngai Hang
name: Zhang, Rongmao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Consider a first-order autoregressive process $X_i=βX_{i-1}+\varepsilon_i,$ where $\varepsilon_i=G(η_i,η_{i-1},\ldots)$ and $η_i,i\in\mathbb{Z}$ are i.i.d. random variables. Motivated by two important issues for the inference of this model, namely, the quantile inference for $H_0: β=1$, and the goodness-of-fit for the unit root model, the notion of the marked empirical process $α_n(x)=\frac{1}{n}\sum_{i=1}^ng(X_i/a_n)I(\varepsilon_i\leq x),x\in\mathbb{R}$ is investigated in this paper. Herein, $g(\cdot)$ is a continuous function on $\mathbb{R}$ and $\{a_n\}$ is a sequence of self-normalizing constants. As the innovation $\{\varepsilon_i\}$ is usually not observable, the residual marked empirical process $\hat α_n(x)=\frac{1}{n}\sum_{i=1}^ng(X_i/a_n)I(\hat{\varepsilon}_iłeq x),x\in\mathbb{R},$ is considered instead, where $\hat{\varepsilon}_i=X_i-\hatβX_{i-1}$ and $\hatβ$ is a consistent estimate of $β.$ In particular, via the martingale decomposition of stationary process and the stochastic integral result of Jakubowski (Ann. Probab. 24 (1996) 2141-2153), the limit distributions of $α_n(x)$ and $\hatα_n(x)$ are established when $\{\varepsilon_i\}$ is a short-memory process. Furthermore, by virtue of the results of Wu (Bernoulli 95 (2003) 809-831) and Ho and Hsing (Ann. Statist. 24 (1996) 992-1024) of empirical process and the integral result of Mikosch and Norvaiša (Bernoulli 6 (2000) 401-434) and Young (Acta Math. 67 (1936) 251-282), the limit distributions of $α_n(x)$ and $\hatα_n(x)$ are also derived when $\{\varepsilon_i\}$ is a long-memory process.
description: Published in at http://dx.doi.org/10.3150/12-BEJ444 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Characteristic initial data and smoothness of Scri. II. Asymptotic expansions and construction of conformally smooth data sets
Creators: name: Paetz, Tim-Torben
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive necessary-and-sufficient conditions on characteristic initial data for Friedrich's conformal field equations in $3+1$ dimensions to have no logarithmic terms in an asymptotic expansion at null infinity.
description: 53 pages
THE TRANSITION OF POPULAR FOLKLORE GENRES TO CHILDREN'S CULTURE: AN ANALYSIS OF UZBEK AND ENGLISH EXAMPLES
Creators: name: Fayzulloyev, Otabek
Publisher: name: Zenodo
Year: 2024

description: This article analyzes the genres that have passed from adult folklore to children's folklore in Uzbek and English traditions. Genres such as riddles, fairy tales and songs are considered an important tool for developing children's minds and instilling national values in them. The article extensively analyzes folklore works that influence children's spiritual and mental development.
قلق المنافسة الرياضية كمؤشر للتنبؤ بالإصابة الرياضة لدى لاعبي كرة القدم Sports competition anxiety as a predictor of sports injury among soccer players
Creators: name: تيلولي, ابو بكر
name: نحال, حميد
name: واضح, أمين
Publisher: name: Zenodo
Year: 2023
Subjects: Sports psychology. Competition anxiety trait prediction. Sports injury

description: The Objective of the study aims to identify The relationship between sports competition anxiety as a trait and injury rate.For this purpose, we used the Descriptive method, On a sample composed of 30 Chosen as an intentional way, and for data collection, we used a tool called Multidimensional Sports Competition Anxiety Trait Scale(SAS-2).After collecting the results and having treated them statistically, we conclude that there are statisticallysignificant differences between the infected and the non-infected due to the level of the trait of competition anxiety and to the existence of a direct relationship with a large effect size, and therefore it is possible to predict who is at risk of injury through the level of the trait of sports competition anxiety
Self-Avoiding Modes of Motion in a Deterministic Lorentz Lattice Gas
Creators: name: Webb, Benjamin
name: Cohen, E. G. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 76M28, 37K60

description: We study the motion of a particle on the two-dimensional honeycomb lattice, whose sites are occupied by either flipping rotators or flipping mirrors, which scatter the particle according to a deterministic rule. For both types of scatterers we find a new type of motion that has not been observed in a Lorentz Lattice gas, where the particle's trajectory is a self-avoiding walk between returns to its initial position. We show that this behavior is a consequence of the deterministic scattering rule and the particular class of initial scatterer configurations we consider. Since self-avoiding walks are one of the main tools used to model the growth of crystals and polymers, the particle's motion in this class of systems is potentially important for the study of these processes.
description: 32 pages, 18 figures
Compressive Wavefront Sensing with Weak Values
Creators: name: Howland, Gregory A.
name: Lum, Daniel J.
name: Howell, John C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a wavefront sensor based on the compressive sensing, single-pixel camera. Using a high-resolution spatial light modulator (SLM) as a variable waveplate, we weakly couple an optical field's transverse-position and polarization degrees of freedom. By placing random, binary patterns on the SLM, polarization serves as a meter for directly measuring random projections of the real and imaginary components of the wavefront. Compressive sensing techniques can then recover the wavefront. We acquire high quality, 256x256 pixel images of the wavefront from only 10,000 projections. Photon-counting detectors give sub-picowatt sensitivity.
Enhancement of jet quenching around phase transition: result from the dynamical holographic model
Creators: name: Li, Danning
name: Liao, Jinfeng
name: Huang, Mei
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The phase transition and jet quenching parameter ${\hat q}$ have been investigated in the framework of dynamical holographic QCD model. It is found that both the trace anomaly and the ratio of the jet quenching parameter over cubic temperature ${\hat q}/T^3$ show a peak around the critical temperature $T_c$, and the ratio of jet quenching parameter over entropy density ${\hat q}/s$ sharply rises at $T_c$. This indicates that the jet quenching parameter can characterize the phase transition. The effect of jet quenching parameter enhancement around phase transition on nuclear modification factor $R_{AA}$ and elliptic flow $v_2$ have also been analyzed, and it is found that the temperature dependent jet quenching parameter from dynamical holographic QCD model can considerably improve the description of jet quenching azimuthal anisotropy as compared with the conformal case.
description: 12 pages, 13 figures, figures updated, references added
Disentangling the physical reality of star cluster candidates projected towards the inner disc of the Large Magellanic Cloud
Creators: name: Piatti, Andres E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have used Washington photometry for 90 star cluster candidates of small angular size -typically ~ 11" in radius- distributed within nine selected regions in the inner disc of the Large Magellanic Cloud (LMC) to disentangle whether they are genuine physical system, and to estimate the ages for the confirmed clusters. In order to avoid a misleading interpretation of the cluster colour-magnitude diagrams (CMDs), we applied a subtraction procedure to statistically clean them from field star contamination. Out of the 90 candidate clusters studied, 61 of them resulted to be genuine physical systems, whereas the remaining ones were classified as possible non- clusters since either their CMDs and/or the distribution of stars in the respective fields do not resemble those of stellar aggregates. We statistically show that ~ (13 +- 6)% of the catalogued clusters in the inner disc could be possible non-clusters, independently of their deprojected distances. We derived the ages for the confirmed clusters from the fit of theoretical isochrones to the cleaned cluster CMDs. The derived ages resulted to be in the age range 7.8 < log(t) < 9.2. Finally, we built cluster frequencies for the different studied regions and found that there exists some spatial variation of the LMC CF throughout the inner disc. Particularly, the innermost field contains a handful of clusters older than ~ 2 Gyr, while the wider spread between different CFs has taken place during the most recent 50 Myr of the galaxy lifetime.
description: MNRAS, accepted
GeV-TeV cosmic-ray spectral anomaly as due to re-acceleration by weak shocks in the Galaxy
Creators: name: Thoudam, Satyendra
name: Hörandel, Jörg R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent cosmic-ray measurements have found an anomaly in the cosmic-ray energy spectrum at GeV-TeV energies. Although the origin of the anomaly is not clearly understood, suggested explanations include effect of cosmic-ray source spectrum, propagation effects, and the effect of nearby sources. In this paper, we propose that the spectral anomaly might be an effect of re-acceleration of cosmic rays by weak shocks in the Galaxy. After acceleration by strong supernova remnant shock waves, cosmic rays undergo diffusive propagation through the Galaxy. During the propagation, cosmic rays may again encounter expanding supernova remnant shock waves, and get re-accelerated. As the probability of encountering old supernova remnants is expected to be larger than the younger ones due to their bigger sizes, re-acceleration is expected to be mainly due to weaker shocks. Since weaker shocks generate a softer particle spectrum, the resulting re-accelerated component will have a spectrum steeper than the initial cosmic-ray source spectrum produced by strong shocks. For a reasonable set of model parameters, it is shown that such re-accelerated component can dominate the GeV energy region while the non-reaccelerated component dominates at higher energies, explaining the observed GeV-TeV spectral anomaly.
description: 12 pages, A&A accepted
Factorization of Dirac Equation and Graphene Quantum Dot
Creators: name: Zahidi, Youness
name: Jellal, Ahmed
name: Bahlouli, Hocine
name: Bouziani, Mohammed El
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a quantum dot described by a cylindrically symmetric 2D Dirac equation. The potentials representing the quantum dot are taken to be of different types of potential configuration, scalar, vector and pseudo-scalar to enable us to enrich our study. Using various potential configurations, we found that in the presence of a mass term an electrostatically confined quantum dot can accommodate true bound states, which is in agreement with previous work. The differential cross section associated with one specific potential configuration has been computed and discussed as function of the various potential parameters.
description: 20 pages, 8 figures. arXiv admin note: text overlap with arXiv:1107.0113 by other authors
Developing the PID Graph - Introduction and Background
Creators: name: Lavasa, Artemis
Publisher: name: Zenodo
Year: 2020
Subjects: open science
persistent identifiers
PID Graph

description: This presentation was the introduction for the session "Developing the PID Graph – Implementations by the FREYA project and beyond" which was part of the "Realising the European Open Science Cloud" event organised by FREYA, EOSC-Hub, and SSHOC.
Policy Brief WP4 - Protection in the Borderlands of Europe
Creators: name: Pallister-Wilkins, Polly
name: Evythimios Papataxiarchis
Publisher: name: Zenodo
Year: 2023
Subjects: refugees
protection
refugees in Greece
protection gaps
refugees in Lebanon
refugees in Turkey

description: Our research in Greece, Turkey and Lebanon, having the GCR and the GCM as its starting point, documented huge discrepancies between protection in theory and in actual practice, failures to adequately monitor the provision of protection in accordance with the EU legal framework, failures in accountability and poor administration of data. It also showed that severe protection gaps emerge because access to basic needs is dependent on legal status, that restrictions on displaced people’s freedom of movement produced by state policies in the name of security generate precarity in urban and camp settings and that in exceptional circumstances civil society actors are treated as substitutes to the state’s obligation to offer protection. On this basis we make a number of recommendations. At the level of the state we recommend, (a) the standardization and systematic publication of data relating to displaced peoples’ access to services including legal protection, healthcare and accommodation, (b) the disaggregation of data facilitating accurate reporting and responses to protection needs in particular localities, and (c) the establishment of a robust monitoring system with the will and power to act on failures and effectively prevent the reproduction of state practices that put displaced people at risk. More generally we recommend, (a) access to protection and the provision of basic needs must be decoupled from legal status, (b) the legal mechanisms must not put displaced people at risk or generate additional precarity, (c) governments must secure a safe environment for the free operation of humanitarian actors offering protection, yet should not solely rely on them to fill protection gaps and, (d) freedom of movement as a fundamental right must always apply to displaced people regardless of location or legal status.
description: This is the policy brief of AdMiGov's work package 4 on protection of migrants, more information: https://admigov.eu
Observations of MCG-5-23-16 with Suzaku, XMM-Newton and NuSTAR: Disk tomography and Compton hump reverberation
Creators: name: Zoghbi, A.
name: Cackett, E. M.
name: Reynolds, C.
name: Kara, E.
name: Harrison, F. A.
name: Fabian, A. C.
name: Lohfink, A.
name: Matt, G.
name: Balokovic, M.
name: Boggs, S. E.
name: Christensen, F. E.
name: Craig, W.
name: Hailey, C. J.
name: Stern, D.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: MCG-5-23-16 is one of the first AGN where relativistic reverberation in the iron K line originating in the vicinity of the supermassive black hole was found, based on a short XMM-Newton observation. In this work, we present the results from long X-ray observations using Suzaku, XMM-Newton and NuSTAR designed to map the emission region using X-ray reverberation. A relativistic iron line is detected in the lag spectra on three different time-scales, allowing the emission from different regions around the black hole to be separated. Using NuSTAR coverage of energies above 10 keV reveals a lag between these energies and the primary continuum, which is detected for the first time in an AGN. This lag is a result of the Compton reflection hump responding to changes in the primary source in a manner similar to the response of the relativistic iron K line.
description: Accepted for Publication in ApJ
Recursive construction of operator product expansion coefficients
Creators: name: Holland, J.
name: Hollands, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a novel formula for the derivative of operator product expansion (OPE) coefficients with respect to a coupling constant. The formula only involves the OPE coefficients themselves, and no further input, and is in this sense self-consistent. Furthermore, unlike other formal identities of this general nature in quantum field theory (such as the formal expression for the Lagrangian perturbation of a correlation function), our formula is completely well-defined from the start, i.e. requires no further UV-renormalization. This feature is a result of a cancelation of UV-divergences between various terms in our identity. Our proof, and an analysis of the features, of our identity is given for the example of massive, Euclidean $φ^4$ theory in 4 dimensional Euclidean space, and relies heavily on the framework of the renormalization group flow equations. It is valid to arbitrary, but finite orders in perturbation theory. The final formula, however, makes no explicit reference to the renormalization group flow, nor to perturbation theory, and we conjecture that it also holds non-perturbatively. The identity can be applied constructively because it gives recursive algorithm for the computation of OPE coefficients to arbitrary (finite) perturbation order in terms of the zeroth order coefficients corresponding to the underlying free field theory, which in turn are trivial to obtain. We briefly illustrate the relation of this method to more standard methods for computing the OPE in some simple examples.
description: 51 pages, Latex, no figures
Spin liquid close to a quantum critical point in Na$_4$Ir$_3$O$_8$
Creators: name: Singh, Yogesh
name: Tokiwa, Y.
name: Dong, J.
name: Gegenwart, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Na$_4$Ir$_3$O$_8$ is a candidate material for a 3-dimensional quantum spin-liquid on the hyperkagome lattice. We present thermodynamic measurements of heat capacity $C$ and thermal conductivity $κ$ on high quality polycrystalline samples of Na$_4$Ir$_3$O$_8$ down to $T = 500$ mK and $75$ mK, respectively. Absence of long-range magnetic order down to $T = 75$ mK strongly supports claims of a spin-liquid ground state. The constant magnetic susceptibility $χ$ below $T \approx 25$ K and the presence of a small but finite linear-$T$ term in $C(T)$ suggest the presence of gapless spin excitations. Additionally, the magnetic Gr$\ddot{\rm{u}}$neisen ratio shows a divergence as $T \rightarrow 0$ K and a scaling behavior which clearly demonstrates that Na$_4$Ir$_3$O$_8$ is situated close to a zero-field QCP.
description: 5 pages, 4 figures, PRB rapid, in press
Abstract Diagnosis for tccp using a Linear Temporal Logic
Creators: name: Comini, Marco
name: Titolo, Laura
name: Villanueva, Alicia
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Automatic techniques for program verification usually suffer the well-known state explosion problem. Most of the classical approaches are based on browsing the structure of some form of model (which represents the behavior of the program) to check if a given specification is valid. This implies that a part of the model has to be built, and sometimes the needed fragment is quite huge. In this work, we provide an alternative automatic decision method to check whether a given property, specified in a linear temporal logic, is valid w.r.t. a tccp program. Our proposal (based on abstract interpretation techniques) does not require to build any model at all. Our results guarantee correctness but, as usual when using an abstract semantics, completeness is lost.
Theoretical study of charge exchange dynamics in He$^+$ + NO collisions
Creators: name: Bene, E.
name: Bacchus-Montabonel, M. -C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We investigate the charge transfer mechanism in the collisions of helium ions on nitric oxide using a molecular description framework with consideration of the orientation of the projectile toward the target. The anisotropy of the collision process has been analysed in detail in connection with the non-adiabatic interactions around avoided crossings. Potential energy curves, radial and rotational coupling matrix elements have been determined by means of ab initio quantum chemical methods. The collision dynamics is performed in the [1.-25.] keV collision energy range using a semiclassical approach, and the total electron transfer cross sections are analysed with regard to available experimental data.
description: 16 pages, 3 tables, 6 figures
Discrete branching laws for minimal holomorphic representations
Creators: name: Möllers, Jan
name: Oshima, Yoshiki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We find the explicit branching laws for the restriction of minimal holomorphic representations to symmetric subgroups in the case where the restriction is discretely decomposable. For holomorphic pairs the minimal holomorphic representation decomposes into a direct sum of lowest weight representations which is made explicit. For non-holomorphic pairs the restriction is shown to be irreducible and identified with a known representation. We further study a conjecture by Kobayashi on the behaviour of associated varieties under restriction and confirm this conjecture in the setting of this paper.
description: 28 pages