cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluation of Modeled Diurnal Warming Estimates for Use in Producing SST Analyses
Creators: name: Wick, Gary
Publisher: name: Zenodo
Year: 2022

description: Short abstract The blending of SST retrievals from different times and representative depths in the generation of Level 4 SST analyses requires compensation for variability associated with processes like diurnal warming. A version of the Kantha-Clayson one-dimensional turbulence closure model with wave effects has been modified to simulate diurnal warming at arbitrary times and depths based on forcing data obtained from global numerical weather prediction and wave models. The model has been integrated into the NOAA NESDIS GOES-POES Blended SST analysis and shared with EUMETSAT. The model performance using these forcing data, however, has not yet been thoroughly evaluated, particularly in instances of large diurnal warming which are of the greatest importance for application to SST analysis generation. Here, we evaluate the model performance over four seasons using observations of diurnal warming derived from operational geosynchronous satellite SST retrievals. The model is forced with 6-hourly data from the NOAA Global Forecast System (GFS) and Wave Watch III models and the simulated diurnal warming amplitudes are compared with estimates derived from the Meteosat-11, GOES-16, and Himawari-8 satellites. Multiple model configurations and “tunable” parameters are evaluated to identify the best achievable performance. Results from direct point-to-point comparisons and derived distributions of diurnal warming amplitudes provide a recommended model configuration and demonstrate that the model can yield realistic predictions with uncertainty levels sufficient for application to SST analyses. The identified model configuration is also shown to produce accurate estimates of diurnal warming observed from multiple research cruises, lending additional confidence in the model performance.
The analytical aspect to the linear stability of elliptic equilibrium points of the Robe's restricted three-body problem
Creators: name: Zhou, Qinglong
name: Zhang, Yongchao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 70F07, 70H14, 34C25

description: We study the Robe's restricted three-body problem. Such a motion was firstly studied by A. G. Robe in \cite{Robe}, which is used to model small oscillations of the earth's inner core taking into account the moon attraction. For the linear stability of elliptic equilibrium points of the Robe's restricted three-body problem, earlier results of such linear stability problem depend on a lot of numerical computations, while we give an analytic approach to it. The linearized Hamiltonian system near the elliptic relative equilibrium point in our problem coincides with the linearized system near the Euler elliptic relative equilibria in the classical three-body problem except for the rang of the mass parameter. We first establish some relations from the linear stability problem to symplectic paths and its corresponding linear operators. Then using the Maslov-type $ω$-index theory of symplectic paths and the theory of linear operators, we compute $ω$-indices and obtain certain properties of the linear stability of elliptic equilibrium points of the Robe's restricted three-body problem.
description: 22 pages. arXiv admin note: substantial text overlap with arXiv:1510.06822, arXiv:1206.6162
Surface effects on ferromagnetic resonance in magnetic nanocubes
Creators: name: Bastardis, R.
name: Vernay, F.
name: Garanin, D. -A.
name: Kachkachi, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the effect of surface anisotropy on the spectrum of spin-wave excitations in a magnetic nanocluster and compute the corresponding absorbed power. For this, we develop a general numerical method based on the (undamped) Landau-Lifshitz equation, either linearized around the equilibrium state leading to an eigenvalue problem or solved using a symplectic technique. For box-shaped clusters, the numerical results are favorably compared to those of the finite-size linear spin-wave theory. Our numerical method allows us to disentangle the contributions of the core and surface spins to the spectral weight and absorbed power. In regard to the recent developments in synthesis and characterization of assemblies of well defined nano-elements, we study the effects of free boundaries and surface anisotropy on the spin-wave spectrum in iron nanocubes and give orders of magnitude of the expected spin-wave resonances. For an 8 nm iron nanocube, we show that the absorbed power spectrum should exhibit a low-energy peak around 10 GHz, typical of the uniform mode, followed by other low-energy features that couple to the uniform mode but with a stronger contribution from the surface. There are also high-frequency exchange-mode peaks around 60 GHz.
Asymptotic formulas for the second moments of $L$-series associated to holomorphic cusp forms on the critical line
Creators: name: Bykovskii, V. A.
name: Frolenkov, D. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: New uniform asymptotic formulas are obtained for the second moment of $L$-series of cusp forms of even weight $2k\ge2$ with respect to the congruence subgroup $Γ_0(N).$
description: paper in Russian, accepted in Izvestiya: Mathematics
Strategic Leadership and Gender Mainstreaming: The Mediating Effect of Gender Unit Empowerment
Creators: name: Zeleke, Terefe
name: Aga, Deribe Assefa
Publisher: name: African Journal of Leadership and Development
Year: 2017

description: This study was designed to examine the mediating role of gender unit on effects of strategic leadership in mainstreaming gender. In order to address this case, the descriptive and explanatory research designs were employed. Accordingly, survey questionnaire was used to collect primary data from two offices (communication and gender unit) in each of 135 randomly selected public institutions. The data were analyzed using SPSS software to generate descriptive and inferential statistics. The descriptive result of this study shows that more public organizations relatively exercise transformational leadership style followed by contingent reward of transactional and laissez-faire styles. The study also found that the gender mainstreaming practices in public organizations were mainly focused on “equal treatment” perspective that entails the formulation and enforcement of legal instruments to promote equal participation in decision making positions. In addition, the results of regression analysis depict that both transformational and contingent reward of transactional leadership styles have positive effect on practices of gender mainstreaming in public organizations. It was also confirmed that the positive effects of transformational and contingent reward of transactional leadership styles on gender mainstreaming practices were partially mediated by empowered gender unit. Therefore, it is very important to establish an autonomous, skilled and experienced, well-resourced and empowered gender unit in public organizations to enhance the role of strategic leaders to ensure gender mainstreaming practices from all equal treatment, women and gender perspectives.
description: African Journal of Leadership and Development, Vol. 2 No. 1 (2017): Public Sector Reform and Development
All-coupling polaron optical response: analytic approaches beyond the adiabatic approximation
Creators: name: Klimin, S. N.
name: Tempere, J.
name: Devreese, J. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In the present work, the problem of an all-coupling analytic description for the optical conductivity of the Froehlich polaron is treated, with the goal being to bridge the gap in validity range that exists between two complementary methods: on the one hand the memory function formalism and on the other hand the strong-coupling expansion based on the Franck-Condon picture for the polaron response. At intermediate coupling, both methods were found to fail as they do not reproduce Diagrammatic Quantum Monte Carlo results. To resolve this, we modify the memory function formalism with respect to the Feynman-Hellwarth-Iddings-Platzman (FHIP) approach, in order to take into account a non-quadratic interaction in a model system for the polaron. The strong-coupling expansion is extended beyond the adiabatic approximation, by including into the treatment non-adiabatic transitions between excited polaron states. The polaron optical conductivity that we obtain by combining the two extended methods agree well, both qualitatively and quantitatively, with the Diagrammatic Quantum Monte Carlo results in the whole available range of the electron-phonon coupling strength.
description: 13 pages, 4 figures
Spin waves and magnetic exchange interactions in the spin ladder compound RbFe$_2$Se$_3$
Creators: name: Wang, Meng
name: Yi, Ming
name: Jin, Shangjian
name: Jiang, Hongchen
name: Song, Yu
name: Luo, Huiqian
name: Christianson, A. D.
name: De la Cruz, C.
name: Bourret-Courchesne, E.
name: Yao, Dao-Xin
name: Lee, D. H.
name: Birgeneau, R. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report an inelastic neutron scattering study of the spin waves of the one-dimensional antiferromagnetic spin ladder compound RbFe$_2$Se$_3$. The results reveal that the products, $SJ$'s, of the spin $S$ and the magnetic exchange interactions $J$'s along the antiferromagnetic (leg) direction and the ferromagnetic (rung) direction are comparable with those for the stripe ordered phase of the parent compounds of the iron-based superconductors. The universality of the $SJ$'s implies nearly universal spin wave dynamics and the irrelevance of the fermiology for the existence of the stripe antiferromagnetic order among various Fe-based materials.
description: 6 pages, 4 figures
Extended self-similarity in moment-generating-functions in wall-bounded turbulence at high Reynolds number
Creators: name: Yang, Xiang I. A.
name: Meneveau, Charles
name: Marusic, Ivan
name: Biferale, Luca
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In wall-bounded turbulence, the moment generating functions (MGFs) of the streamwise velocity fluctuations $\left$ develop power-law scaling as a function of the wall normal distance $z/δ$. Here $u$ is the streamwise velocity fluctuation, $+$ indicates normalization in wall units (averaged friction velocity), $z$ is the distance from the wall, $q$ is an independent variable and $δ$ is the boundary layer thickness. Previous work has shown that this power-law scaling exists in the log-region {\small $3Re_τ^{0.5}\lesssim z^+$, $z\lesssim 0.15δ$}, where $Re_τ$ is the friction velocity-based Reynolds numbers. Here we present empirical evidence that this self-similar scaling can be extended, including bulk and viscosity-affected regions $30
Vetting Galactic Leavitt Law Calibrators using Radial Velocities: On the Variability, Binarity, and Possible Parallax Error of 19 Long-period Cepheids
Creators: name: Anderson, R. I.
name: Casertano, S.
name: Riess, A. G.
name: Melis, C.
name: Holl, B.
name: Semaan, T.
name: Papics, P. I.
name: Blanco-Cuaresma, S.
name: Eyer, L.
name: Mowlavi, N.
name: Palaversa, L.
name: Roelens, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We investigate the radial velocity (RV) variability and spectroscopic binarity of 19 Galactic long-period ($P_{\rm{puls}} \gtrsim 10$ d) classical Cepheid variable stars whose trigonometric parallaxes are being measured using the Hubble Space Telescope and Gaia. Our primary objective is to constrain possible parallax error due to undetected orbital motion. Using $>1600$ high-precision RVs measured between 2011 and 2016, we find no indication of orbital motion on $\lesssim 5$ yr timescales for 18 Cepheids and determine upper limits on allowed configurations for a range of input orbital periods. The results constrain the unsigned parallax error due to orbital motion to $< 2 \%$ for 16 stars, and $< 4 \%$ for 18. We improve the orbital solution of the known binary YZ Carinae and show that the astrometric model must take into account orbital motion to avoid significant error ($\sim \pm 100 μ$arcsec). We further investigate long-timescale ($P_{\rm{orb}} > 10$ yr) variations in pulsation-averaged velocity $v_γ$ via a template fitting approach using both new and literature RVs. We discover the spectroscopic binarity of XZ Car and CD Cyg, find first tentative evidence for AQ Car, and reveal KN Cen's orbital signature. Further (mostly tentative) evidence of time-variable $v_γ$ is found for SS CMa, VY Car, SZ Cyg, and X Pup. We briefly discuss considerations regarding a vetting process of Galactic Leavitt law calibrators and show that light contributions by companions are insignificant for most distance scale applications.
description: 27 pages, 8 figures, 8 tables, ApJS in press
Multiscale approach to equilibrating model polymer melts
Creators: name: Svaneborg, Carsten
name: Karimi-Varzaneh, Hossein Ali
name: Hojdis, Nils
name: Fleck, Frank
name: Everaers, Ralf
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present an effective and simple multiscale method for equilibrating Kremer Grest model polymer melts of varying stiffness. In our approach, we progressively equilibrate the melt structure above the tube scale, inside the tube and finally at the monomeric scale. We make use of models designed to be computationally effective at each scale. Density fluctuations in the melt structure above the tube scale are minimized through a Monte Carlo simulated annealing of a lattice polymer model. Subsequently the melt structure below the tube scale is equilibrated via the Rouse dynamics of a force-capped Kremer-Grest model that allows chains to partially interpenetrate. Finally the Kremer-Grest force field is introduced to freeze the topological state and enforce correct monomer packing. We generate $15$ melts of $500$ chains of $10.000$ beads for varying chain stiffness as well as a number of melts with $1.000$ chains of $15.000$ monomers. To validate the equilibration process we study the time evolution of bulk, collective and single-chain observables at the monomeric, mesoscopic and macroscopic length scales. Extension of the present method to longer, branched or polydisperse chains and/or larger system sizes is straight forward.
Lepton-pair Cerenkov radiation emitted by tachyonic neutrinos: Lorentz-covariant approach and IceCube data
Creators: name: Jentschura, Ulrich D.
name: Ehrlich, Robert
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Current experiments do not exclude the possibility that one or more neutrinos are very slightly superluminal or that they have a very small tachyonic mass. Important bounds on the size of a hypothetical tachyonic neutrino mass term are set by lepton pair Cerenkov radiation (LPCR), i.e., by the decay channel nu -> e^+ e^- nu which proceeds via a virtual Z0 boson. Here, we use a Lorentz-invariant dispersion relation which leads to very tight constraints on the tachyonic mass of neutrinos; we also calculate decay and energy loss rates. A possible cutoff seen in the IceCube neutrino spectrum for E_nu > 2 PeV, due to the potential onset of LPCR, is discussed.
description: 7 pages; accepted for publication in the Advances of High-Energy Physics
IN00001 - Allāhābād Praśasti of Samudragupta
Creators: name: Balogh, Dániel
Publisher: name: Zenodo
Year: 2023

description: [caption id="attachment_6843" align="alignnone" width="455"] Allāhābād (Uttar Pradesh). Inked impression of the praśasti of Samudragupta. Courtesy Zenodo.[/caption]
Measuring Housing Stress in Rental Condominiums: The Case of Public Service Employees in Akaki – Kality Sub-city, Addis Ababa
Creators: name: Teshome, Tesfaye
Publisher: name: African Journal of Leadership and Development
Year: 2017

description: The study aimed at assessing the level of housing stress as a consequence of rent and non-rent factors of housing stress encountered by renter public sector employees. To meet the objectives of the study a mixed research approach was employed to use both quantitative and qualitative data. A questionnaire survey was carried out to collect the required data from 385sample households who are renter public sector employees. Secondary data collected from both published and unpublished documents. Tables and percentages to show variance, the ’30-only rule’, and mean income analysis employed to show the level of housing stress as a function of rent and income. A multiple response analysis is applied to assess the impacts of rent on non-housing needs to indicate the level of housing stress. A bar graph is applied to show the distribution of renter households by work place. The findings reveal that all renter public sector employees are suffering from housing stress caused by both rent and non-rent factors. The majority of the renter households pay a monthly rent above the 30 percent threshold and unable to meet other non-housing needs adequately after paying for housing rent. Regarding the non-rent factors, all renter households are free from housing stress emanating from housing crowding but over half of them are exposed to housing stress due to daily commuting between work place and home. Finally the study recommends the implementation of market based rent allowance and strategies to enable renter public service employees to be house owners.
description: African Journal of Leadership and Development, Vol. 2 No. 1 (2017): Public Sector Reform and Development
Actualités thérapeutiques dans l’ostéoporose
Creators: name: Bengana, Bilal
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320223
subject: Rheumatology and arthritis

description: L’ostéoporose est devenue un véritable problème de santé publique, de par sa fréquence et le coût conséquent qu’elle engendre. Les traitements anti-ostéoporotiques actuels et déjà connus, sont efficaces dans le gain de la masse osseuse et la diminution du risque de fracture, mais il arrive d’aboutir sur des contraintes, qui font suite à certaines contre-indications de ces thérapeutiques, mais aussi suite aux effets secondaires, qui poussent parfois à les arrêter. Il parait plus que nécessaire d’enrichir l’arsenal thérapeutique anti-ostéoporotique pour une meilleure prise en charge des patients, ceci passe sans doute par de meilleures connaissances sur le mécanisme physiopathologique de l’ostéoporose mais aussi par l’élaboration de nouvelles molécules, plus efficaces et mieux tolérés, et ce en ciblant au mieux les principaux acteurs responsables de la réduction de la force osseuse. Le romosozumab constitue l’un de ces traitements novateurs, cet anticorps monoclonal dirigé contre la sclérostine, a un double effet osseux, déjà d’inciter la formation et ensuite de diminuer la résorption. Ce dernier, est approuvé pour des sujets avec un risque élevé de fracture en l’absence de complications vasculaires sévères. D’autres pistes thérapeutiques sont en cours de développement, comme celles agissant sur les protéines morphogénétiques osseuses et celles inhibant les cathepsines K. Enfin, le futur réservera certainement, l’arrivée de nouveaux traitements encourageants pour l’amélioration de la prise en charge des malades souffrant d’ostéoporose, avec plus de résultats positifs et moins d’encombres que les molécules déjà disponibles.
A novel 2D non-stationary wideband massive MIMO channel model
Creators: name: Lopez, C. F.
name: Wang, C. -X.
name: Feng, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, a novel two-dimensional (2D) non-stationary wideband geometry-based stochastic model (GBSM) for massive multiple-input multiple-output (MIMO) communication systems is proposed. Key characteristics of massive MIMO channels such as near field effects and cluster evolution along the array are addressed in this model. Near field effects are modelled by a second-order approximation to spherical wavefronts, i.e., parabolic wavefronts, leading to linear drifts of the angles of multipath components (MPCs) and non-stationarity along the array. Cluster evolution along the array involving cluster (dis)appearance and smooth average power variations is considered. Cluster (dis)appearance is modeled by a two-state Markov process and smooth average power variations are modelled by a spatial lognormal process. Statistical properties of the channel model such as time autocorrelation function (ACF), spatial cross-correlation function (CCF), and cluster average power and Rician factor variations over the array are derived. Finally, simulation results are presented and analyzed, demonstrating that parabolic wavefronts and cluster soft evolution are good candidates to model important massive MIMO channel characteristics.
description: 6 pages, 5 figures, conference
A dynamical gravitational wave source in a dense cluster
Creators: name: Hurley, Jarrod R.
name: Sippel, Anna C.
name: Tout, Christopher A.
name: Aarseth, Sverre J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Making use of a new N-body model to describe the evolution of a moderate-size globular cluster we investigate the characteristics of the population of black holes within such a cluster. This model reaches core-collapse and achieves a peak central density typical of the dense globular clusters of the Milky Way. Within this high-density environment we see direct confirmation of the merging of two stellar remnant black-holes in a dynamically-formed binary, a gravitational wave source. We describe how the formation, evolution and ultimate ejection/destruction of binary systems containing black holes impacts the evolution of the cluster core. Also, through comparison with previous models of lower density, we show that the period distribution of black hole binaries formed through dynamical interactions in this high-density model favours the production of gravitational wave sources. We confirm that the number of black holes remaining in a star cluster at late times and the characteristics of the binary black hole population depend on the nature of the star cluster, critically on the number density of stars and by extension the relaxation timescale.
description: 10 pages, 4 figures, submitted to PASA May 17 2016, resubmitted June 30 2016
Revisiting the equivalence of light-front and covariant QED in the light-cone gauge
Creators: name: Mantovani, Luca
name: Pasquini, Barbara
name: Xiong, Xiaonu
name: Bacchetta, Alessandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the equivalence between light-front time-ordered-perturbation theory and covariant quantum field theory in light-front quantization, in the case of quantum electrodynamics at one-loop level. In particular, we review the one-loop calculation of the vertex correction, fermion self-energy and vacuum polarization. We apply the procedure of integration by residue over the light-front energy in the loop to show how the perturbative expansion in covariant terms can be reduced to a sum of propagating and instantaneous diagrams of light-front time-ordered perturbation theory. The detailed proof of equivalence between the two formulations of the theory resolves the controversial question on which form should be used for the gauge-field propagator in the light-cone gauge in the covariant approach.
description: 18 pages, 5 figures
Impact of Grain Boundaries on Efficiency and Stability of Organic-Inorganic Trihalide Perovskites
Creators: name: Chu, Zhaodong
name: Yang, Mengjin
name: Schulz, Philip
name: Wu, Di
name: Ma, Xin
name: Seifert, Edward
name: Sun, Liuyang
name: Zhu, Kai
name: Li, Xiaoqin
name: Lai, Keji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Organic-inorganic perovskite solar cells have attracted tremendous attention because of their remarkably high power conversion efficiencies (PCEs). To further improve the device performance, however, it is imperative to obtain fundamental understandings on the photo-response and long-term stability down to the microscopic level. Here, we report the first quantitative nanoscale photoconductivity imaging on two methylammonium lead triiodide (MAPbI3) thin films with different PCEs by light-stimulated microwave impedance microscopy. The intrinsic photo-response is largely uniform across grains and grain boundaries, which is direct evidence on the inherently benign nature of microstructures in the perovskite thin films. In contrast, the carrier mobility and lifetime are strongly affected by bulk properties such as the sample crystallinity. As visualized by the spatial evolution of local photoconductivity, the degradation due to water diffusion through the capping layer begins with the disintegration of large grains rather than the nucleation and propagation from grain boundaries. Our findings provide new insights to improve the electro-optical properties of MAPbI3 thin films towards large-scale commercialization.
description: 23 pages, 4 figures
Die Salbung Jesu durch Maria (Joh 12,1-8)
Creators: name: Häfner, Gerd
name: Pettinger, Diana
name: Witetschek, Stephan Joseph
Publisher: name: Biblische Notizen
Year: 1970

description: Biblische Notizen, Bd. 122 (2004): Biblische Notizen, Band 122
Symbols and exact regularity of symmetric pseudo-splines of any arity
Creators: name: Muntingh, Georg
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 65D10, 26A16

description: Pseudo-splines form a family of subdivision schemes that provide a natural blend between interpolating schemes and approximating schemes, including the Dubuc-Deslauriers schemes and B-spline schemes. Using a generating function approach, we derive expressions for the symbols of the symmetric $m$-ary pseudo-spline subdivision schemes. We show that their masks have positive Fourier transform, making it possible to compute the exact Hölder regularity algebraically as a logarithm of the spectral radius of a matrix. We apply this method to compute the regularity explicitly in some special cases, including the symmetric binary, ternary, and quarternary pseudo-spline schemes.
description: 31 pages
Existence and Blowup Results for Asymptotically Euclidean Initial Data Sets Generated by the Conformal Method
Creators: name: Dilts, James
name: Isenberg, James
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: For each set of (freely chosen) seed data, the conformal method reduces the Einstein constraint equations to a system of elliptic equations, the conformal constraint equations. We prove an admissibility criterion, based on a (conformal) prescribed scalar curvature problem, which provides a necessary condition on the seed data for the conformal constraint equations to (possibly) admit a solution. We then consider sets of asymptotically Euclidean (AE) seed data for which solutions of the conformal constraint equations exist, and examine the blowup properties of these solutions as the seed data sets approach sets for which no solutions exist. We also prove that there are AE seed data sets which include a Yamabe nonpositive metric and lead to solutions of the conformal constraints. These data sets allow the mean curvature function to have zeroes.
description: 27 pages
Scattering of Fermions by Gravitons
Creators: name: Ulhoa, S. C.
name: Santos, A. F.
name: Khanna, Faqir C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The interaction between gravitons and fermions is investigated in the teleparallel gravity. The scattering of fermions and gravitons in the weak field approximation is analyzed. The transition amplitudes of M$\varnothing$ller, Compton and new gravitational scattering are calculated.
زیبایی شناسی بینامتنیت قرآنی در رمان "یا صاحبی السجن" اثر ایمن عتوم (تحلیل نشانه شناسی آستانه عنوان)
Publisher: name: دانشگاه کردستان
Year: 2022

description: بینامتنیت با انواع و سطوح مختلف خود یکی از پدیده های هنری مهم در شکل گیری متن ادبی معاصر است و به همین دلیل از طرف ناقدان، مورد توجه فراوانی قرار گرفته است. این مقاله در تلاش است تا نوع قرآنی تناص را که از غنای خوبی برخوردار است در رمان "یا صاحبی السجن" اثر ایمن عتوم با تمرکز  بر عنوان اصلی و دیگر عناوین فرعی مورد بررسی قرار دهد. این پژوهش با شیوه توصیفی-تحلیلی و با رویکرد نقد نشانه شناسی، انجام پذیرفته و بر اساس آن می توان گفت که این رویکرد به غایت زیبایی شناختی، معنایی و شناختی آن دست یافته است. با بررسی جلوه های بینامتنی قرآنی در عناوین رمان (یا صاحبی السجن) به عنوان نشانه های نشانه شناختی مهم، مجموعه ای از نتایج به دست آمده که بر اساس آن می­توان گفت بینامتنیت قرآنی در رمان (یا صاحبی السجن) پدیده ای زیباشناختی است که دو زاویه دید نویسنده را منعکس می سازد. زاویه دید اول ازآن خالق و نگارنده اثر و زاویه دید دوم بیانگر قهرمانی است که تجربه داستانی را به عنوان یک واقعیت زندگی کرده است و او را قادر می سازد تا آن را با جزییات ساختارهای روایی ترکیبی و عناصر زمان، مکان و شخصیت ها به تصویر بکشد و به زبانی شیوا به توصیف آن بپردازد. نویسنده رمان، از طریق متن و عناوین آن، حوزه وسیعی از حضور مستقیم و غیرمستقیم را به خود اختصاص داده است. این عناوین، آستانه هایی را تشکیل می دهند که متون مستقلی را به وجود می­آورند. ایمن عتوم از طریق این عناوین موفق شده تصویری بی نظیر از بهره برداری از انرژی های زبانی و تصویری متن ارجمند قرآنی ارائه دهد و آن را هدفی در جهت فایده رساندن در سطوح زبانی و معنایی، قرار دهد.
The Quantum Trihedron
Creators: name: Bendjoudi, A.
name: Mebarki, N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The convex hull on three points in two dimensional euclidean space of three flat edges (trihedron) was studied. The Bohr-Sommerfeld quantization of the area of space is performed. It is shown that it reproduces exactly the equidistant spacing spectrum found elsewhere.
description: 3 pages, 2 figures
"thumb_Fig1.png" of "Scaling properties of proton and anti-proton production in s(NN)**(1/2) = 200-GeV Au + Au collisions."
Creators: name: PHENIX Collaboration
Publisher: name: HEPData
Year: 2023

description: Image File
description: We report on the yield of protons and anti-protons, as a function of centrality and transverse momentum, in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV measured at mid-rapidity by the PHENIX experiment at RHIC. In central collisions at intermediate transverse momenta (1.5 < $p_T$ < 4.5 GeV/$c$) a significant fraction of all produced particles are protons and anti-protons. They show a centrality-scaling behavior different from that of pions. The $\bar{p}$/$\pi$ and $p$/$\pi$ ratios are enhanced compared to peripheral Au+Au, $p$+$p$, and $e^+$$e^-$ collisions. This enhancement is limited to $p_T$ < 5 GeV/$c$ as deduced from the ratio of charged hadrons to $\pi^0$ measured in the range 1.5 < $p_T$ < 9 GeV/c.
Jeans' Ghost
Creators: name: Gumrukcuoglu, A. Emir
name: Mukohyama, Shinji
name: Sotiriou, Thomas P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that a massless canonical scalar field minimally coupled to general relativity can become a tachyonic ghost at low energies around a background in which the scalar's gradient is spacelike. By performing a canonical transformation we demonstrate that this low energy ghost can be recast, at the level of the action, in a form of a fluid that undergoes a Jeans-like instability affecting only modes with large wavelength. This illustrates that low-energy tachyonic ghosts do not lead to a catastrophic quantum vacuum instability, unlike the usual high-energy ghost degrees of freedom.
description: 7 pages
Join the SEI and White House OSTP to Explore the Future of Software and AI Engineering
Creators: name: Carleton, Anita
name: Robert, John
name: Klein, Mark
name: Schmidt, Douglas
name: Harper, Erin
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The Software Engineering Institute (SEI) and the Networking and Information Technology Research and Development Program in the White House Office of Science and Technology Program will co-host an upcoming workshop to inform a community strategy for building and maintaining U.S. leadership in software engineering and artificial intelligence (AI) engineering. The workshop will be held in person at the National Science Foundation in Alexandria, Virginia, on June 20 and 21. Registration for the event closes June 16. The event will gather thought leaders from federal research funding agencies, research laboratories, and mission agencies, as well as relevant commercial organizations, to explore the fundamental research needed to advance the theory and practice of software engineering, as well as enable the reliable development and trustworthy use of AI in the next generation of software-reliant systems. Speakers will include engineering and research leaders from commercial organizations like Google and Facebook, nine federal agencies, and eight universities.
Nearest Neighbor-based Rendezvous for Sparsely Connected Mobile Agents
Creators: name: Masoud, Ahmad A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper a convergent, nearest-neighbor, control protocol is suggested for agents with nontrivial dynamics. The protocol guarantees convergence to a common point in space even if each agent is restricted to communicate with a single nearest neighbor. The neighbor, however, is required to lie outside an arbitrarily small priority zone surrounding the agent. The control protocol consists of two layers interconnected in a provably-correct manner. The first layer provides the guidance signal to a rendezvous point assuming that the agents have first order dynamics. The other layer converts in a decentralized manner the guidance signal to a control signal that suits realistic agents such as UGVs, UAVs and holonomic agents with second order dynamics.
Berichtigung zu Reiprich, Torsten: |Befand sich die mk Gemeinde in Ägypten?|: BN 119/120 (2004) 147-163
Creators: name: Reiprich, Torsten
Publisher: name: Biblische Notizen
Year: 1970

description: Biblische Notizen, Bd. 121 (2004): Biblische Notizen, Band 121
"thumb_Fig4.png" of "Scaling properties of proton and anti-proton production in s(NN)**(1/2) = 200-GeV Au + Au collisions."
Creators: name: PHENIX Collaboration
Publisher: name: HEPData
Year: 2023

description: Image File
description: We report on the yield of protons and anti-protons, as a function of centrality and transverse momentum, in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV measured at mid-rapidity by the PHENIX experiment at RHIC. In central collisions at intermediate transverse momenta (1.5 < $p_T$ < 4.5 GeV/$c$) a significant fraction of all produced particles are protons and anti-protons. They show a centrality-scaling behavior different from that of pions. The $\bar{p}$/$\pi$ and $p$/$\pi$ ratios are enhanced compared to peripheral Au+Au, $p$+$p$, and $e^+$$e^-$ collisions. This enhancement is limited to $p_T$ < 5 GeV/$c$ as deduced from the ratio of charged hadrons to $\pi^0$ measured in the range 1.5 < $p_T$ < 9 GeV/c.
A PMT-like high gain avalanche photodiode based on GaN/AlN periodical stacked structure
Creators: name: Zheng, Ji-yuan
name: Wang, Lai
name: Yang, Di
name: Yu, Jia-dong
name: Meng, Xiao
name: E, Yan-xiong
name: Wu, Chao
name: Hao, Zhi-biao
name: Sun, Chang-zheng
name: Xiong, Bing
name: Luo, Yi
name: Han, Yan-jian
name: Wang, Jian
name: Li, Hong-tao
name: Brault, Julien
name: Matta, Samuel
name: Khalfioui, Mohamed Al
name: Yan, Jian-chang
name: Wei, Tong-bo
name: Zhang, Yun
name: Wang, Jun-xi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Avalanche photodiode (APD) has been intensively investigated as a promising candidate to replace photomultiplier tubes (PMT) for weak light detection. However, in conventional APDs, a large portion of carrier energy drawn from the electric field is thermalized, and the multiplication efficiencies of electron and hole are low and close. In order to achieve high gain, the device should work under breakdown bias, where carrier multiplication proceeds bi-directionally to form a positive feedback multiplication circle. However, breakdown is hard to control, in practice, APDs should work under Geiger mode as a compromise between sustainable detection and high gain. The complexity of system seriously restricts the application. Here, we demonstrate an avalanche photodiode holding high gain without breakdown, which means no quenching circuit is needed for sustainable detection. The device is based on a GaN/AlN periodically-stacked-structure (PSS), wherein electron holds much higher efficiency than hole to draw energy from the electric field, and avalanche happens uni-directionally with high efficiency. and a recorded high gain (10^4) tested under constant bias is obtained in a prototype device, wherein the stable gain can be determined by the periodicity of the GaN/AlN PSS. This work not only brings a new light into avalanche multiplication mechanism, but also paves a technological path with high commercial value to realize highly sensitive avalanche devices working under constant bias like PMT.
Η κλινική εμπειρία στην ψυχοθεραπεία: Η φαινομενολογική δομή του βιώματος των σωματικών ψυχοθεραπευτών
Creators: name: Rigos, Markos
Publisher: name: Zenodo
Year: 2020
Subjects: Κλινική εμπειρία
Ψυχοθεραπεία
Φαινομενολογία
Ερευνητική μέθοδος
Σωματική ψυχοθεραπεία
Συνείδηση

description: Ξεκινώντας από την παραδοχή πως το βίωμα συγκροτείται από το υποκείμενο και πληροφορεί το υποκείμενο, η έρευνα αναπτύσσεται υποστηρίζοντας την πρωταρχικότητα της υποκειμενικής προσπέλασης στη διερεύνηση του βιώματος. Σε αυτή τη βάση, για τη διερεύνηση του βιώματος των ψυχοθεραπευτών κατά τη διεξαγωγή σωματικών ψυχοθεραπευτικών συνεδριών δημιουργήθηκε μια συνέντευξη ανοικτού τύπου. Δεδομένου ότι ερευνητικό μέσο είναι οι ερωτήσεις και ο ερωτών, αναπτύχθηκε ερευνητική μέθοδος όπου αναδεικνύονται ως σημαντικά τόσο η σύνταξη και ο τρόπος παρουσίασης των ερωτήσεων όσο και η συγκρότηση και ο τρόπος εκφοράς του ερωτώντα. Στην παρούσα εργασία υποστηρίζονται, παρουσιάζονται και συζητούνται η προτεινόμενη φαινομενολογική ερευνητική μέθοδος, η εφαρμογή της και οι συλλεχθείσες πληροφορίες. Τεχνικά μέσα ερευνητικής μεθόδου:
 1. Αρχική συνέντευξη: Επιστημολογία - Μέθοδος - Ερωτήσεις
 2. Οριστική συνέντευξη: Επιστημολογία - Μέθοδος - Ερωτήσεις
 3. Καρτέλα εστίασης: Άξονες βιωματικής περιγραφής
"thumb_Fig3.png" of "Scaling properties of proton and anti-proton production in s(NN)**(1/2) = 200-GeV Au + Au collisions."
Creators: name: PHENIX Collaboration
Publisher: name: HEPData
Year: 2023

description: Image File
description: We report on the yield of protons and anti-protons, as a function of centrality and transverse momentum, in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV measured at mid-rapidity by the PHENIX experiment at RHIC. In central collisions at intermediate transverse momenta (1.5 < $p_T$ < 4.5 GeV/$c$) a significant fraction of all produced particles are protons and anti-protons. They show a centrality-scaling behavior different from that of pions. The $\bar{p}$/$\pi$ and $p$/$\pi$ ratios are enhanced compared to peripheral Au+Au, $p$+$p$, and $e^+$$e^-$ collisions. This enhancement is limited to $p_T$ < 5 GeV/$c$ as deduced from the ratio of charged hadrons to $\pi^0$ measured in the range 1.5 < $p_T$ < 9 GeV/c.
Agricultural Baselines Using Deep Learning
Creators: name: Bora, Siddhartha
name: Katchova, Ani
name: Bora, Siddhartha
name: Katchova, Ani
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: commodity markets
subject: forecasting
subject: deep learning
subject: USDA baselines

description: Long-term forecasts about commodity market indicators play an important role in informing policy and investment decisions by governments and market participants. The USDA’s baseline reports are the primary source of long-term information for the US farm sector, but recent research shows that these projections do not stay informative for longer horizons. We examine whether the accuracy of long-term forecasts can be improved using deep learning methods. We first formulate a supervised learning problem and set benchmarks for forecast accuracy. We then train a set of deep neural networks on a training sample and measure their performance against the benchmark model on a test sample using a walkforward validation strategy. We find that while the USDA baseline projections perform better for the shorter horizon, the performance of the deep neural networks improves for the longer forecast horizons. The findings may help future revisions of the forecasting process.
Long-term stability test of a triple GEM detector
Creators: name: Adak, R. P.
name: Biswas, S.
name: Das, S.
name: Ghosal, D.
name: Ghosh, S. K.
name: Mondal, A.
name: Nag, D.
name: Nayak, T. K.
name: Patra, R. N.
name: Prasad, S. K
name: Raha, S.
name: Sahu, P. K.
name: Sahu, S.
name: Swain, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The main aim of the study is to perform the long-term stability test of gain of the single mask triple GEM detector. A simple method is used for this long- term stability test using a radioactive X-ray source with high activity. The test is continued till accumulation of charge per unit area > 12.0 mC/mm2. The details of the chamber fabrication, the test set-up, the method of measurement and the test results are presented in this paper.
description: 8 pages, 5 figures
title: Three essays on intra-household allocation
Creators: name: Mansoor, Nazia
Publisher: name: University of Kent
Year: 2023

description: In a marriage market when individuals of different qualities meet, the partner with the better quality may accept the match if marriage payments exist or if the marriage surplus is divisible and the inferior quality partner can commit to a lower share. It is this second aspect that brings the two literatures of matching in the marriage market and intra-household allocation of resources together. This commitment of household shares at the time of marriage adds a novel dimension to the two literatures. We look specifically at the use of contraception and division of labour in the household. Using data from rural Bangladesh in 1998-1999, the first paper finds that women in a relatively strong bargaining position at the time of marriage (gauged by the fraction of marriage payments composed of brideprice), continue to remain in a strong position post marriage as seen by their decision to use the contraceptive pill. The second paper uses data from eighteen waves of the British Household Panel Survey (1991-2008) to investigate the division of labour in households. We argue that the partner who is relatively of better quality, or more specifically better educated, is given a larger share from the marital output by the lower quality partner to secure the match. Variations in the division of household labour in the data confirm this. In addition the empirical results indicate that the relative bargaining power of individuals at the time of matching persists during the marriage, through a sharing rule that varies over time but is agreed on by them at the time of marriage. We then look at another aspect of intra-household allocation, the decision to send children in the household to work. Using data from the Pakistan Social and Living Standards Measurement Survey (PSLM) 2007- 2008 we find that variations in child labour are a consequence of variations in parental preferences rather than differences in household income.
"thumb_Fig2.png" of "Scaling properties of proton and anti-proton production in s(NN)**(1/2) = 200-GeV Au + Au collisions."
Creators: name: PHENIX Collaboration
Publisher: name: HEPData
Year: 2023

description: Image File
description: We report on the yield of protons and anti-protons, as a function of centrality and transverse momentum, in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV measured at mid-rapidity by the PHENIX experiment at RHIC. In central collisions at intermediate transverse momenta (1.5 < $p_T$ < 4.5 GeV/$c$) a significant fraction of all produced particles are protons and anti-protons. They show a centrality-scaling behavior different from that of pions. The $\bar{p}$/$\pi$ and $p$/$\pi$ ratios are enhanced compared to peripheral Au+Au, $p$+$p$, and $e^+$$e^-$ collisions. This enhancement is limited to $p_T$ < 5 GeV/$c$ as deduced from the ratio of charged hadrons to $\pi^0$ measured in the range 1.5 < $p_T$ < 9 GeV/c.
Relative Calabi-Yau structures
Creators: name: Brav, Christopher
name: Dyckerhoff, Tobias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 18G55

description: We introduce relative noncommutative Calabi-Yau structures defined on functors of differential graded categories. Examples arise in various contexts such as topology, algebraic geometry, and representation theory. Our main result is a composition law for Calabi-Yau cospans generalizing the classical composition of cobordisms of oriented manifolds. As an application, we construct Calabi-Yau structures on topological Fukaya categories of framed punctured Riemann surfaces.
description: 36 pages, preliminary version, comments welcome