cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A linear constitutive model for unsaturated poroelasticity
Creators: name: biot-bazant, figshare admin
name: Cheng, Alexander
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 91402 Geomechanics and Resources Geotechnical Engineering
subject: FOS: Environmental engineering
subject: Mechanics
subject: 91307 Numerical Modelling and Mechanical Characterisation
subject: FOS: Mechanical engineering

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
A Measure of data-collapse for scaling
Creators: name: Bhattacharjee, Somendra M.
name: Seno, Flavio
Publisher: name: arXiv
Year: 2001
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Data-collapse is a way of establishing scaling and extracting associated exponents in problems showing self-similar or self-affine characteristics as e.g. in equilibrium or non-equilibrium phase transitions, in critical phases, in dynamics of complex systems and many others. We propose a measure to quantify the nature of data collapse. Via a minimization of this measure, the exponents and their error-bars can be obtained. The procedure is illustrated by considering finite-size-scaling near phase transitions and quite strikingly recovering the exact exponents.
description: 3 pages, revtex, 3 figures,2 in colour. Replaced by the proper version - slightly longer and no mismatch of abstract
Scale Invariance in a Perturbed Einstein-de Sitter Cosmology
Creators: name: Abdalla, Elcio
name: Mohayaee, Roya
name: Ribeiro, Marcelo B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper seeks to check the validity of the "apparent fractal conjecture" (Ribeiro 2001ab: gr-qc/9909093, astro-ph/0104181), which states that the observed power-law behaviour for the average density of large-scale distribution of galaxies arises when some observational quantities, selected by their relevance in average density profile determination, are calculated along the past light cone. Implementing these conditions in the proposed set of observational relations profoundly changes the behaviour of many observables in the standard cosmological models. In particular, the average density becomes observationally inhomogeneous, even in the spatially homogeneous spacetime of standard cosmology, change which was already analysed by Ribeiro (1992b, 1993, 1994, 1995: astro-ph/9910145) for a non-perturbed model. Here we derive observational relations in a perturbed Einstein-de Sitter cosmology by means of the perturbation scheme proposed by Abdalla and Mohayaee (1999: astro-ph/9810146), where the scale factor is expanded in power series to yield perturbative terms. The differential equations derived in this perturbative context, and other observables necessary in our analysis, are solved numerically. The results show that our perturbed Einstein-de Sitter cosmology can be approximately described by a decaying power-law like average density profile, meaning that the dust distribution of this cosmology has a scaling behaviour compatible with the power-law profile of the density-distance correlation observed in the galaxy catalogues. These results show that, in the context of this work, the apparent fractal conjecture is correct.
description: 18 pages, 1 figure, LaTeX. Final version (small changes in the figure plus some references update). Fortran code included with the LaTeX source. To be published in "Fractals"
Maximally-localized generalized Wannier functions for composite energy bands
Creators: name: Marzari, Nicola
name: Vanderbilt, David
Publisher: name: arXiv
Year: 1997
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We discuss a method for determining the optimally-localized set of generalized Wannier functions associated with a set of Bloch bands in a crystalline solid. By ``generalized Wannier functions'' we mean a set of localized orthonormal orbitals spanning the same space as the specified set of Bloch bands. Although we minimize a functional that represents the total spread sum_n [ _n - _n^2 ] of the Wannier functions in real space, our method proceeds directly from the Bloch functions as represented on a mesh of k-points, and carries out the minimization in a space of unitary matrices U_mn^k describing the rotation among the Bloch bands at each k-point. The method is thus suitable for use in connection with conventional electronic-structure codes. The procedure also returns the total electric polarization as well as the location of each Wannier center. Sample results for Si, GaAs, molecular C2H4, and LiCl will be presented.
description: 22 pages, two-column style with 4 postscript figures embedded. Uses REVTEX and epsf macros. Also available at http://www.physics.rutgers.edu/~dhv/preprints/index.html#nm_wann
Optimization of the ?fixed-stress splitting scheme for Biot's equations
Creators: name: biot-bazant, figshare admin
name: Storvik, Erlend
name: Both, Jakub Wiktor
name: Kumar, Kundan
name: Nordbotten, Jan Martin
name: Radu, Florin Adrian
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: Mechanics
subject: 91307 Numerical Modelling and Mechanical Characterisation
subject: FOS: Mechanical engineering

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
A highly granular calorimeter concept for long baseline near detectors
Creators: name: Emberger, Lorenz
name: Simon, Frank
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Future long baseline neutrino experiments such as the DUNE experiment under construction at Fermilab will perform precision measurements of neutrino oscillations, including the potential for the discovery of CP violation in the lepton sector. These measurements require an understanding of the unoscillated neutrino beam with unprecedented accuracy. This will be provided by complex near detectors which consist of different subsystems including tracking elements and electromagnetic calorimetry. A high granularity in the calorimeter, provided by scintillator tiles with SiPM readout as used in the CALICE analog hadron calorimeter, provides the capability for direction reconstruction of photon showers, which can be used to determine the decay positions of neutral pions. This can enable the association of neutral pions to neutrino interactions in the tracker volume, improving the event reconstruction of the near detector. Beyond photon and electron reconstruction, the calorimeter also provides sensitivity to neutrons. In this presentation, we will discuss a simulation study exploring the potential of high granularity for the electromagnetic calorimeter of the DUNE near detector. Particular emphasis will be placed on the combination with a high pressure TPC as tracking detector, which puts particularly stringent requirements on the calorimeter. The dependence of the projected detector performance on granularity, absorber material and absorber thickness as well as geometric arrangement satisfying the constraints of the TPC are explored.
description: 8 pages, 7 figures, proceedings of CALOR 2018, Eugene, OR, USA, May 2018
Scopula lactaria
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae
Scopula
Scopula lactaria

description: Scopula lactaria (Walker, 1861a)
COMMON NAME(S): Geometer moth.
SYNONYM(S): Acidalia intervulsata Walker, 1861a; Acidalia tectaria Walker, 1866b.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Angola, Botswana, Comoros, Democratic Republic of Congo, Eritrea, Ethiopia, Gambia, Guinea, Kenya, Madagascar, Nigeria, Oman. Réunion, Sierra Leone, South Africa, Tanzania, Uganda, Yemen, Zambia, Zimbabwe.
LOCALITY IN ZAMBIA: Petauke, in Eastern Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: African Moths 2019; De Prins & De Prins 2022; Hampson 1910c.
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 252, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
Dynamic Cosmic Strings II: Numerical evolution of excited Cosmic Strings
Creators: name: Sperhake, U.
name: Sjodin, K. R. P.
name: Vickers, J. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An implicit, fully characteristic, numerical scheme for solving the field equations of a cosmic string coupled to gravity is described. The inclusion of null infinity as part of the numerical grid allows us to apply suitable boundary conditions on the metric and matter fields to suppress unphysical divergent solutions. The code is tested by comparing the results with exact solutions, checking that static cosmic string initial data remain constant when evolved and undertaking a time dependent convergence analysis of the code. It is shown that the code is accurate, stable and exhibits clear second order convergence. The code is used to analyse the interaction between a Weber--Wheeler pulse of gravitational radiation with the string. The interaction causes the string to oscillate at frequencies inversely proportional to the masses of the scalar and vector fields of the string. After the pulse has largely radiated away the string continues to ring but the oscillations slowly decay and eventually the variables return to their static values.
description: 18 pages, RevTex, 11 figures
Study of provenance data for the SKA Science Dataprocessor
Creators: name: Sánchez, Julián Garrido
name: Sánchez-Expósito, Susana
Publisher: name: Zenodo
Year: 2021
Subjects: Astronomy, Provenance, IVOA, VO, SKAO

description: We will present the goals and main conclusions from the project “Supporting Open Science in the SquareKilometre Array by collecting Provenance from its Science Data processor (SDP)”. In this work, we havestudied the existing set of documents resulting from the SKA design and the provenance information thatthe SKA will provide. We have studied how the current IVOA provenance recommendation satisfies the SDPneeds and how the model would need to be expanded to cover computational aspects. In addition, we haveassessed existing tools to visualise data provenance.
description: https://wiki.ivoa.net/internal/IVOA/InterOpMay2021Abstracts/abstract-50.pdf
Variational Community Partition with Novel Network Structure Centrality Prior
Creators: name: Bai, Yiguang
name: Liu, Sanyang
name: Yin, Ke
name: Yuan, Jing
Publisher: name: arXiv
Year: 2018
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this paper, we proposed a novel two-stage optimization method for network community partition, which is based on inherent network structure information. The introduced optimization approach utilizes the new network centrality measure of both links and vertices to construct the key affinity description of the given network, where the direct similarities between graph nodes or nodal features are not available to obtain the classical affinity matrix. Indeed, such calculated network centrality information presents the essential structure of network, hence, the proper measure for detecting network communities, which also introduces a `confidence' criterion for referencing new labeled benchmark nodes. For the resulted challenging combinatorial optimization problem of graph clustering, the proposed optimization method iteratively employs an efficient convex optimization algorithm which is developed based under a new variational perspective of primal and dual. Experiments over both artificial and real-world network datasets demonstrate that the proposed optimization strategy of community detection significantly improves result accuracy and outperforms the state-of-the-art algorithms in terms of accuracy and reliability.
description: Semi-supervised learning, Two-stage optimization strategy, Community detection, Benchmark nodes
Monolithic Multigrid Method for Biot's Equations
Creators: name: biot-bazant, figshare admin
name: Favino, Marco
name: Holliger, Klaus
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: Mechanics
subject: 91307 Numerical Modelling and Mechanical Characterisation
subject: FOS: Mechanical engineering
subject: 80205 Numerical Computation
subject: FOS: Computer and information sciences

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Rolling friction of a viscous sphere on a hard plane
Creators: name: Brilliantov, Nikolai V.
name: Poeschel, Thorsten
Publisher: name: arXiv
Year: 1998
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A first-principle continuum-mechanics expression for the rolling friction coefficient is obtained for the rolling motion of a viscoelastic sphere on a hard plane. It relates the friction coefficient to the viscous and elastic constants of the sphere material. The relation obtained refers to the case when the deformation of the sphere $ξ$ is small, the velocity of the sphere $V$ is much less than the speed of sound in the material and when the characteristic time $ξ/V$ is much larger than the dissipative relaxation times of the viscoelastic material. To our knowledge this is the first ``first-principle'' expression of the rolling friction coefficient which does not contain empirical parameters.
description: 6 pages, 2 figures
A bistable soft gripper with mechanically embedded sensing and actuation for fast closed-loop grasping
Creators: name: Thuruthel, Thomas George
name: Abidi, Syed Haider
name: Cianchetti, Matteo
name: Laschi, Cecilia
name: Falotico, Egidio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Soft robotic grippers are shown to be high effective for grasping unstructured objects with simple sensing and control strategies. However, they are still limited by their speed, sensing capabilities and actuation mechanism. Hence, their usage have been restricted in highly dynamic grasping tasks. This paper presents a soft robotic gripper with tunable bistable properties for sensor-less dynamic grasping. The bistable mechanism allows us to store arbitrarily large strain energy in the soft system which is then released upon contact. The mechanism also provides flexibility on the type of actuation mechanism as the grasping and sensing phase is completely passive. Theoretical background behind the mechanism is presented with finite element analysis to provide insights into design parameters. Finally, we experimentally demonstrate sensor-less dynamic grasping of an unknown object within 0.02 seconds, including the time to sense and actuate.
Pible: Battery-Free Mote for Perpetual Indoor BLE Applications
Creators: name: Fraternali, Francesco
name: Balaji, Bharathan
name: Agarwal, Yuvraj
name: Benini, Luca
name: Gupta, Rajesh
Publisher: name: arXiv
Year: 2018
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Smart building applications require a large-scale deployment of sensors distributed across the environment. Recent innovations in smart environments are driven by wireless networked sensors as they are easy to deploy. However, replacing these batteries at scale is a non-trivial, labor-intensive task. Energy harvesting has emerged as a potential solution to avoid battery replacement but requires compromises such as application specific design, simplified communication protocol or reduced quality of service. We explore the design space of battery-free sensor nodes using commercial off the shelf components, and present Pible: a Perpetual Indoor BLE sensor node that leverages ambient light and can support numerous smart building applications. We analyze node-lifetime, quality of service and light availability trade-offs and present a predictive algorithm that adapts to changing lighting conditions to maximize node lifetime and application quality of service. Using a 20 node, 15-day deployment in a real building under varying lighting conditions, we show feasible applications that can be implemented using Pible and the boundary conditions under which they can fail.
description: 4 pages, 4 figures, BuildSys '18: Conference on Systems for Built Environments, November 7--8, 2018, Shenzen, China
A Microscopic Model for Packet Transport in the Internet
Creators: name: Huisinga, Torsten
name: Barlovic, Robert
name: Knospe, Wolfgang
name: Schadschneider, Andreas
name: Schreckenberg, Michael
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A microscopic description of packet transport in the Internet by using a simple cellular automaton model is presented. A generalised exclusion process is introduced which allows to study travel times of the particles ('data packets') along a fixed path in the network. Computer simulations reveal the appearance of a free flow and a jammed phase separated by a (critical) transition regime. The power spectra are compared to empirical data for the RTT (Round Trip Time) obtained from measurements in the Internet. We find that the model is able to reproduce the characteristic statistical behaviour in agreement with the empirical data for both phases (free flow and congested). The phases are therefore jamming properties and not related to the structure of the network. Moreover the model shows, as observed in reality, critical behaviour (1/f-noise) for paths with critical load.
description: 9 pages, 7 figures
Pew Research Center: American Trends Panel Wave 78
Creators: name: Pew Research Center
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Satisfaction with how things are going in country (1); vote in 2020 general election (1); quality of election administration (2); ease of voting (2); economic conditions in country (2); 2020 presidential election campaign (4); state of the country (4); post-election conduct of presidential candidates (3); how closely you followed election (3); vote method (12); preparation before voting (6); feeling thermometer towards politicians (4); confidence in President-Elect Joe Biden and President Donald Trump (4); coronavirus (COVID-19) pandemic economic assistance package (2); political activities in past six months (7); partisan relations (3); transition from Trump administration to Biden (1); coronavirus pandemic restrictions (1); Republican/Democratic Party represent your interests (2); accuracy of votes cast (3); statements about government and politics (4); contact from political campaigns (6); future of Republican/Democratic Party (2); supporters of different presidential campaign (2).
Variational Principle for Relativistic Fluid Dynamics
Creators: name: Elze, Hans-Thomas
name: Hama, Yogiro
name: Kodama, Takeshi
name: Makler, Martín
name: Rafelski, Johann
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The variational principle for the special and general relativistic hydrodynamics are discussed in view of its application to obtain approximate solutions to these problems. We show that effective Lagrangians can be obtained for suitable ansatz for the dynamical variables such as density profile of the system. As an example, the relativistic version of spherical droplet motion (Rayleigh-Plesset equation) is derived from a simple Lagrangian. For the general relativistic case the most general Lagrangian for spherically symmetric systems is given.
description: 20 pages, 1 figure
Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads
Creators: name: Kang, Kicheon
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive a formula for the current through an interacting quantum dot coupled to two supercouducting leads, using the non-equilibrium Green's function formalism. It is shown that the formula takes an especially simple form, when the Andreev reflections in the junctions are negligible because of large Coulomb repulsion in the dot. Our formalism provides a new framework to investigate many-body effects of mesoscopic systems in the presence of the superconducting leads. For an example, we describe the resonant tunneling of quasiparticles in the presence of strong Coulomb repulsion in the dot. Further, we discuss the boson assisted transport. Multiple sharp peaks are found in the current-voltage curve, which originate from the singularity of BCS density of states and the boson assisted tunneling.
description: 4 pages Revtex, 2 Postscript figures, To be published in Phys. Rev. B
Application of Unsaturated Poroelasticity to Shales
Creators: name: biot-bazant, figshare admin
name: Kim, Hyunbin
name: Makhnenko, Roman
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 91402 Geomechanics and Resources Geotechnical Engineering
subject: FOS: Environmental engineering
subject: Mechanics

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Gauge Symmetry and Gravito-Electromagnetism
Creators: name: Clark, Simon J.
name: Tucker, Robin W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A tensor description of perturbative Einsteinian gravity about an arbitrary background spacetime is developed. By analogy with the covariant laws of electromagnetism in spacetime, gravito-electromagnetic potentials and fields are defined to emulate electromagnetic gauge transformations under substitutions belonging to the gauge symmetry group of perturbative gravitation. These definitions have the advantage that on a flat background, with the aid of a covariantly constant timelike vector field, a subset of the linearised gravitational field equations can be written in a form that is fully analogous to Maxwell's equations (without awkward factors of 4 and extraneous tensor fields). It is shown how the remaining equations in the perturbed gravitational system restrict the time dependence of solutions to these equations and thereby prohibit the existence of propagating vector fields. The induced gravito-electromagnetic Lorentz force on a test particle is evaluated in terms of these fields together with the torque on a small gyroscope. It is concluded that the analogy of perturbative gravity to Maxwell's description of electromagnetism can be valuable for (quasi-)stationary gravitational phenomena but that the analogy has its limitations.
description: 29 pages no-figs
The upper critical field in superconducting MgB_2
Creators: name: Müller, K. -H.
name: Fuchs, G.
name: Handstein, A.
name: Nenkov, K.
name: Narozhnyi, V. N.
name: Eckert, D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The upper critical field Hc2(T) of sintered pellets of the recently discovered MgB_2 superconductor was investigated in magnetic fields up to 16 T. The upper critical field of the major fraction of the investigated sample was determined from ac susceptibility and resistance data and was found to increase up to Hc2(0) = 13 T at T = 0 corresponding to a coherence length of 5.0 nm. A small fraction of the sample exhibits higher upper critical fields which were measured both resistively and by dc magnetization measurements. The temperature dependence of the upper critical field, Hc2(T), shows a positive curvature near Tc and at intermediate temperatures. This positive curvature of Hc2(T) is similar to that found for the borocarbides YNi_2B_2C and LuNi_2B_2C indicating that MgB_2 is in the clean limit.
description: 8 pages with 4 figures
Additional file 4: of Immune profiling of pre- and post-treatment breast cancer tissues from the SWOG S0800 neoadjuvant trial
Creators: name: Xiaotong Li
name: Warren, Sarah
name: Pelekanou, Vasiliki
name: Wali, Vikram
name: Cesano, Alessandra
name: Mingdong Liu
name: Danaher, Patrick
name: Nathane Elliott
name: Nahleh, Zeina
name: Hayes, Daniel
name: Hortobagyi, Gabriel
name: Barlow, William
name: Hatzis, Christos
name: Pusztai, Lajos
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Figure S4. Correlation between TIL counts and PD-L1 expression. A. Correlation between TIL counts and PD-L1 expression on tumor cells. B. Correlation between TIL counts and PD-L1 expression on stromal cells. C. TIL counts in cases with positive and negative PD-L1 expression on tumor cells. D. TIL counts in cases with positive and negative PD-L1 expression on stromal cells. For A and B, Solid line and grey shade represent linear regression line and 95% confidence interval, respectively. Besides, Pearson correlation coefficient r and p-value are added. For C and D, p values are from Wilcoxon test. (PDF 74 kb)
Backward Scattering and Coexistent State in Two-Dimensional Electron System
Creators: name: Murakami, Masakazu
name: Fukuyama, Hidetoshi
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The results of the mean field studies on the effects of the backward scattering with large momentum transfer in a two-dimensional electron system are extended to the case with various types of the Fermi surface and coupling constants. It is found that the coexistent state of d-wave superconductivity, antiferromagnetism and $π$-triplet pair can be stabilized quite generally near half filling.
description: 16 pages, LaTeX, 16 figures included, revised in April 1998
Mode solutions of the Klein-Gordon equation in warped spacetimes
Creators: name: Droz-Vincent, Philippe
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In order to reduce the Klein-Gordon equation (with minimal coupling), we introduce a generalization of the so-called "mode solutions" that are well-known in the special case of a Robertson-Walker universe. After separation of the variables, we end up with a partial differential equation in lower dimension. A reduced version of the Gordon current arises and is conserved. When the first factor-manifold is Lorentzian, distinct modes appear as mutually orthogonal in the sense of the sesquilinear form obtained from the customary Gordon current. Moreover, a sesquilinear form is defined on the space of solutions to the reduced equation. Extension of this picture to curvature coupling is possible when the second factor-manifold has a constant scalar curvature.
description: 20 pages, LaTeX file, nofigure
[Dear Miss Tejera : It is a pleasure to inform you that you have been selected]
Creators: name: Ethan D., Alyea
name: Alyea, Ethan D.
name: Grimes, Francis E.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Bourse
Fondation CINTAS

description: Destinataire : Tejera, Nivaria
description: Les auteurs de la lettre l’informent qu’elle a été sélectionnée en tant que récipiendaire d’une bourse décernée par la Fondation CINTAS, et donnent des informations sur les modalités de versement de cette bourse.
description: Los autores de la carta le informan de que ha sido seleccionada como beneficiaria de una beca otorgada por la Fundación CINTAS, y facilitan información sobre las modalidades de pago de dicha beca.
description: Note : Papier à en-tête : Institute of International Education. New York, NY. Présence de notes manuscrites au stylo rouge et noir sur la lettre.
description: Source: NT-AB-1967-08-17
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Self-sufficient reactive transport modeling in concrete
Creators: name: biot-bazant, figshare admin
name: Isgor, Burkan
name: Wiess, W. Jason
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 90503 Construction Materials
subject: FOS: Civil engineering
subject: Mechanics
subject: 91504 Fluidisation and Fluid Mechanics
subject: FOS: Other engineering and technologies
subject: 80110 Simulation and Modelling
subject: FOS: Computer and information sciences

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
SIYOSIY-IJTIMOIY DISKURSNING TILSHUNOSLIKDAGI ILMIY ASOSLARINING NAZARIY TAHLILI
Creators: name: Hujanova, Mastura
Publisher: name: Zenodo
Year: 2025

description: Tilshunoslikning rivojlanib borayotgan sohalari ichida lingvopolitologiya(Siyosiy lingvistika) yo‘nalishi bugungi kunda dolzarb masalaga aylanib bormoqda. Globollashuv davrida siyosiy harakatlarning ma’lum qolipga solish vositasi bu til bo‘lib, uning nazariy jihatlari lingvopolitologiyada ilmiy tahlil qilinadi. Mazkur maqolada tilshunoslikda siyosiy-ijtimoiy diskursning ilmiy nazariy asoslari va uning filologik tahlili bayon qilinadi.
Ambient-temperature co-digestion of low-solids municipal and industrial waste mixtures: Insights from molecular analyses
Creators: name: Yazdani, Ramin
name: Shim, Kyuhwan
name: Chen, Zhi
name: Cheung, Christy
name: Summers, Matthew D.
name: Williams, Douglas W.
name: Seiser, Reinhard
name: K. De Long, Susan
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: The performance of ambient temperature anaerobic co-digestion was investigated for mixtures of six substrates: canned tomato and salsa waste, portable toilet waste, septic tank waste, winery waste, beer and cider waste, and fats, oils, and grease (FOG). Laboratory semi-continuous reactor studies and molecular biological analyses revealed that beer/winery, and tomato/FOG/winery/beer mixtures resulted in the best performance in terms of biogas production (515 and 371 mL CH4/g VS, respectively) and methanogenic populations. A portable toilet/septage mixture resulted in the overall poorest performance and inhibition of microbial activity was evident. Average methane content was ~70% for all mixtures tested. The findings of this study reveal that healthy methanogen populations were present, further supporting the feasibility of biogas production via the novel feedstock mixtures in ambient temperature lagoons. Implications: Disposal of septic tank waste and other high chemical oxygen demand (COD) 10 industrial food processing waste at a small wastewater treatment plant is uncommon, because it can upset the treatment process and requires additional power for treatment. Ambient-temperature covered lagoon digesters can be an alternative low-cost technology for co-digestion of these recalcitrant waste streams while generating bioenergy. The results of this study demonstrated that there is potential for implementation of unheated covered lagoon digester systems 15 for conversion of liquid wastes for production of renewable biomethane while eliminating the need to treat these wastes at a wastewater treatment plant.
title: Χρήση των E.R.P. συστημάτων απο τις ελληνικές επιχειρήσεις
titleType: AlternativeTitle
title: Use of E.R.P. of greek enterprises
Creators: name: Vacharidis, Athanasios K.
Publisher: name: National Technological University of Athens
Year: 2007
Subjects: Πακέτα λογισμικού
Ενδοεπιχειρησιακά
Πληροφορικά συστήματα
Προγραμματισμός
Πακέτα εφαρμογών
Enterprise Resource Planning
E.R.P.
Customer relationship management
Material requirement planning
Economic order quantity

description: 116 σ.
description: Η εργασία αποτελεί μια έρευνα για το επίπεδο εισαγωγής και χρήσης E.R.P. συστημάτων από τις Ελληνικές επιχειρήσεις. Τα αποτελέσματα τις έρευνας δείχνουν πως το επίπεδο αυτό0 είναι χαμηλό σε σχέση με τον Ευρωπαϊκό μέσον όρο.
description: The work constitutes a research for the level of import and use E. R. P. systems from the Greek enterprises. The results show that this level is low concerning the European mean.
Antiviral mechanism of apilimod against SARS-CoV-2: a systematic review
Creators: name: Maningas, Marjorie Gold D.
name: Masungsong, Kristine Joyce S.
name: Misajon, Joseph Briane Guiller T.
name: Navata, Jemina Fe P.
name: Ngo, Kathleen G.
Publisher: name: Zenodo
Year: 2021

description: This is a reference list for Antiviral mechanism of apilimod against SARS-CoV-2: a systematic review.
title: Ανάλυση της αιτιότητας του χρηματιστηριακού δείκτη των ασθενέστερων οικονομικών χωρών (PIIGS)
titleType: AlternativeTitle
title: Analysis of stock market index of european countries (P.I.I.G.S)
Creators: name: Remoundos, Georgios I.
Publisher: name: National Technological University of Athens
Year: 2011
Subjects: Μέθοδος Granger
Χρηματιστηριακός Δείκτης
ΑΕΠ Ελλάδα
EVIEWS
Αιτιότητα
Granger Causality Test
Stock Market Index
PIIGS
EViews
Causality

description: 89 σ.
description: Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) "Μαθηματική Προτυποποίηση στις Σύγχρονες Τεχνολογίες και την Οικονομία"
description: Η παρούσα μεταπτυχιακή εργασία έχει σαν στόχο να μελετήσει την σχέση αιτιότητας μεταξύ των βασικών δεικτών των χρηματιστηρίων των οικονομικά ασθενέστερών ευρωπαικών χωρών, όπου χαρακτηριστήκαν με την ονομασία PIIGS, απο τα αρχικά των χωρών Πορτογαλία, Ιταλία, Ιρλανδία, Ελλάδα , Ισπανία καθώς και με χώρες με πιο οικονομική πορεία, όπως η Γερμανία και η Ολλανδία. Στα πλαίσια του εμπειρικού σκέλους της εργασίας, χρησιμοποιήσαμε τον γενικό δείκτη κλεισίματος για τις χώρες αυτές. Για να επιτύχουμε τον σκοπό μας, χρησιμοποιήσαμε σαν μεθοδολογία τον έλεγχο αιτιότητας Granger - Granger Causality Test.
description: Analysis of stock market index of european countries (Spain, Portugal, Italy, Ireland, Greece), using as method the Granger Causality test.
The Role of Gravity in Producing Power-Law Mass Functions
Creators: name: Kuznetsova, Aleksandra
name: Hartmann, Lee
name: Heitsch, Fabian
name: Ballesteros-Paredes, Javier
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Numerical simulations of star formation have found that a power-law mass function can develop at high masses. In a previous paper, we employed isothermal simulations which created large numbers of sinks over a large range in masses to show that the power law exponent of the mass function, $dN/d\log M \propto M^Γ$, asymptotically and accurately approaches $Γ= -1.$ Simple analytic models show that such a power law can develop if the mass accretion rate $\dot{M} \propto M^2$, as in Bondi-Hoyle accretion; however, the sink mass accretion rates in the simulations show significant departures from this relation. In this paper we show that the expected accretion rate dependence is more closely realized provided the gravitating mass is taken to be the sum of the sink mass and the mass in the near environment. This reconciles the observed mass functions with the accretion rate dependencies, and demonstrates that power-law upper mass functions are essentially the result of gravitational focusing, a mechanism present in, for example, the competitive accretion model.
description: 11 pages, 10 figures, accepted by ApJ
Additional file 1: of Microbiota in the apical root canal system of tooth with apical periodontitis
Creators: name: Wenhao Qian
name: Ma, Ting
name: Ye, Mao
name: Zhiyao Li
name: Yuanhua Liu
name: Hao, Pei
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology

description: Packages of the additional figures. (PDF 609 kb)
Long-term effect of integrated fertilization on maize yield and soil fertility in a calcaric fluvisol
Creators: name: Li, Keli
name: Wang, Chong
name: Li, Xiaolin
name: Li, Huan
name: Dong, Mingming
name: Jin, Shujie
name: Liu, Lin
name: Zhu, Chuo
name: Xue, Rui
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: In an 8-year study, the influence of integrated fertilization (combination of organic and inorganic fertilizers) on maize (Zea mays L.) yield and nutrition, with respect to nitrogen, phosphorus and potassium, at the different growth stages, was investigated in Quzhou County of the North China Plain. Three treatments were chosen for this study: inorganic fertilizers without organic fertilizers (IF), inorganic fertilizers plus low organic fertilizers (LOF) and inorganic fertilizers plus high organic fertilizers (HOF). The results showed that integrated fertilization significantly improved maize grain yield; the magnitude of increase in maize grain yield with HOF and LOF was 1.52 and 0.74 t ha−1, respectively, over the IF (9.20 t ha−1). The total plant biomass and uptake of nitrogen, phosphorus and potassium in maize plants across growing stages were significantly improved with integrated fertilization. The integrated supply of nutrients was also beneficial in improving soil organic carbon, total nitrogen, available phosphorus and exchangeable potassium over the years. The result suggests that nutrient management practices for maize cultivation in the North China Plain should preferably include the integrated use of organic and inorganic fertilizers (3.75 t ha−1 organic fertilizers supplemented with 125 kg N ha−1) to increase soil fertility and maize yield.
Additional file 1: of The mycorrhizal pathway of zinc uptake contributes to zinc accumulation in barley and wheat grain
Creators: name: Coccina, Antonio
name: Cavagnaro, Timothy
name: Pellegrino, Elisa
name: Ercoli, Laura
name: McLaughlin, Michael
name: Watts-Williams, Stephanie
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Supplementary materials to the manuscript including a Table of ANOVA outcomes, two Tables of plant response data (yield parameters and P contents), and one Figure depicting the experimental pot and hyphal compartment set-up. (DOCX 119 kb)
Corrosion product transport in cementitious media
Creators: name: biot-bazant, figshare admin
name: Furcas, Fabio Enrico
name: Lothenbach, Barbara
name: Isgor, Burkan
name: Zhang, Zhidong
name: Angst, Ueli
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 90503 Construction Materials
subject: FOS: Civil engineering
subject: 30607 Transport Properties and Non-equilibrium Processes
subject: FOS: Chemical sciences

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Spectral analysis of the barium central star of the planetary nebula Hen 2-39
Creators: name: Löbling, L.
name: Boffin, H. M. J.
name: Jones, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Barium stars are peculiar red giants characterized by an overabundance of s-process elements along with an enrichment in carbon. These stars are discovered in binaries with white dwarf companions. The more recently formed of these stars are still surrounded by a planetary nebula. Precise abundance determinations of the various s-process elements, especially, of the lightest, short-lived radionuclide technetium will establish constraints for the formation of s-process elements in asymptotic giant branch stars as well as mass transfer through, for example, stellar wind, Roche-lobe overflow, and common-envelope evolution. We performed a detailed spectral analysis of the K-type subgiant central star of the planetary nebula Hen 2-39 based on high-resolution optical spectra obtained with the Ultraviolet and Visual Echelle Spectrograph at the Very Large Telescope using LTE model atmospheres. We confirm the effective temperature of $T_\mathrm{eff} = 4350 \pm 150$ K for the central star of the planetary nebula Hen 2-39. It has a photospheric carbon enrichment of $[\mathrm{C/H}]= 0.36 \pm 0.08$ and a barium overabundance of $[\mathrm{Ba/Fe}]= 1.8 \pm 0.5$. We find a deficiency for most of the iron-group elements (calcium to iron) and establish an upper abundance limit for technetium ($\log ε_\mathrm{Tc} < 2.5$). The quality of the available optical spectra is not sufficient to measure abundances of all s-process elements accurately. Despite large uncertainties on the abundances as well as on the model yields, the derived abundances are most consistent with a progenitor mass in the range 1.75-3.00 $M_\odot$ and a metallicity of $[\mathrm{Fe/H}]= -0.3 \pm 1.0$. This result leads to the conclusion that the formation of such systems requires a relatively large mass transfer that is most easily obtained via wind-Roche lobe overflow.
description: 26 pages, 18 figures
Preheating of the nonminimally coupled inflaton field
Creators: name: Tsujikawa, S.
name: Maeda, K.
name: Torii, T.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate preheating of an inflaton field $ϕ$ coupled nonminimally to a spacetime curvature. In the case of a self-coupling inflaton potential $V(ϕ)=λϕ^4/4$, the dynamics of preheating changes by the effect of the negative $ξ$. We find that the nonminimal coupling works in two ways. First, since the initial value of inflaton field for reheating becomes smaller with the increase of $|ξ|$, the evolution of the inflaton quanta is delayed for fixed $λ$. Second, the oscillation of the inflaton field is modified and the nonadiabatic change around $ϕ=0$ occurs significantly. That makes the resonant band of the fluctuation field wider. Especially for strong coupling regimes $|ξ| \gg 1$, the growth of the inflaton flutuation is dominated by the resonance due to the nonminimal coupling, which leads to the significant enhancement of low momentum modes. Although the final variance of the inflaton fluctuation does notchange significantly compared with the minimally coupled case, we have found that the energy transfer from the homogeneous inflaton to created particles efficiently occurs for $ξ
description: 13pages, 11figures
Taraxacum floribundum Doll 1978
Creators: name: Štěpánek, Jan
name: Kirschner, Jan
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Taraxacum
Taraxacum floribundum

description: Taraxacum floribundum Doll (1978: 636, Plate LXXIV), described as a member of T. sect. Alpestria
 Type indication:—“Typus: Holotypus im h Doll / Locus typus [sic!]: Borovez, Wegrand. 7. 7. 76. Doll“; also Plate LXXIV: „ Taraxacum floribundum Doll sp. nov. – Holotypus ”.
 Type:— Flora von Bulgarien, Rila-Gebirge, Borovez, Wegrand, 7 Jul 1976, R. Doll [as Taraxacum floribundum sp. nov. Holotypus!] (JE, no. det. 19253, holotype; isotype: JE, no. det. 19254).
 Specimens of the OM:—The OM of the name T. floribundum consists of a single gathering divided and mounted on two herbarium sheets. On Plate LXXIV, plants from both sheets were put together and photographed as a single plant but there were two rosettes overlapping. On both sheets, there are late sciomorphic plants, not satisfactorily prepared, and later damaged by instects. Achenes are very small, with a short cone, pollen is present and irregular in the remnants of florets.
 Conclusion:—The quality of plant material does not allow any clear interpretation; we tentatively suggest they might belong to T. sect. Taraxacum (= T. sect. Ruderalia). The name itself is considered as a nomen damnabile.
description: Published as part of Štěpánek, Jan & Kirschner, Jan, 2022, A hotspot of endemism: Oreophytic Taraxacum species (Compositae, Crepidinae) in the mountains of Bulgaria, pp. 1-139 in Phytotaxa 569 (1) on page 9, DOI: 10.11646/phytotaxa.569.1.1, http://zenodo.org/record/7235182
Additional file 1: of Immune profiling of pre- and post-treatment breast cancer tissues from the SWOG S0800 neoadjuvant trial
Creators: name: Xiaotong Li
name: Warren, Sarah
name: Pelekanou, Vasiliki
name: Wali, Vikram
name: Cesano, Alessandra
name: Mingdong Liu
name: Danaher, Patrick
name: Nathane Elliott
name: Nahleh, Zeina
name: Hayes, Daniel
name: Hortobagyi, Gabriel
name: Barlow, William
name: Hatzis, Christos
name: Pusztai, Lajos
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Figure S1. CONSORT diagram of samples used in the study. (PDF 11 kb)