cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integrating Environmental Protection and North American Free Trade
Creators: name: Emerson, Peter M.
name: Nessman, Alan C.
name: Emerson, Peter M.
name: Nessman, Alan C.
Publisher: name: Unknown
Year: 1995
Subjects: Environmental Economics and Policy
International Relations/Trade

description: The North American Free Trade Agreement (NAFTA) represents significant developments in both regional trade liberalisation and environmental protection. Pre-agreement negotiations offered non-government organisations (NGOs) considerable opportunity to reduce areas of potential conflict between these two objectives. The Agreement deals with both boundary problems and common standards without dictating uniformity of standards or impinging greatly on each nation's sovereign control over matters within its own borders. The introduction of this practical strategy into the international trade arena could be the most significant feature of the NAFTA in shaping future regional and international trade negotiations.
A quark model analysis of the Sivers function
Creators: name: Courtoy, A.
name: Fratini, F.
name: Scopetta, S.
name: Vento, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop a formalism to evaluate the Sivers function. The approach is well suited for calculations which use constituent quark models to describe the structure of the nucleon. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model of hadron structure. The results obtained are consistent with a sizable Sivers effect and the signs for the u and d flavor contributions turn out to be opposite. This pattern is in agreement with the one found analyzing, in the same model, the impact parameter dependent generalized parton distributions. The Burkardt Sum Rule turns out to be fulfilled to a large extent. We estimate the QCD evolution of our results from the momentum scale of the model to the experimental one and obtain reasonable agreement with the available data.
description: 31 pages, 4 figures. Extended version, discussion of the Burkardt Sum Rule added, references added, minor changes in the numerical results, same interpretation. Final version accepted for publication in Phys. Rev. D
Hierarchy of higher-order Floquet topological phases in three dimensions
Creators: name: Nag, Tanay
name: Juricic, Vladimir
name: Roy, Bitan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Following a general protocol of periodically driving static first-order topological phases (supporting surface states) with suitable discrete symmetry breaking Wilson-Dirac masses, here we construct a hierarchy of higher-order Floquet topological phases in three dimensions. In particular, we demonstrate realizations of both second-order and third-order Floquet topological states, respectively supporting dynamic hinge and corner modes at zero quasienergy, by periodically driving their static first-order parent states with one and two discrete symmetry breaking Wilson-Dirac mass(es). While the static surface states are characterized by codimension $d_c=1$, the resulting dynamic hinge (corner) modes, protected by \emph{antiunitary} spectral or particle-hole symmetries, live on the boundaries with $d_c=2$ $(3)$. We exemplify these outcomes for three-dimensional topological insulators and Dirac semimetals, with the latter ones following an arbitrary spin-$j$ representation.
description: Published version: 6 Pages, 4 Figures
Το περί Βασιλείου Τάξεως του Κωνσταντίνου Ζ΄ του Πορφυρογέννητου ως πηγή αυλικής και εκκλησιαστικής εθιμοτυπίας
Creators: name: Σιόντα, Παναγιώτα Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Εθιμοτυπία
Εορτές
Περί Βασιλείου Τάξεως
Etiquette
Holidays
About the Kingdom of Order

description: Σκοπός της εργασίας αυτής είναι να αντληθούν πληροφορίες για την βυζαντινή αυλική και αυτοκρατορική εθιμοτυπία κατά τον 10ο αιώνα. Τη σημαντικότερη πηγή αποτελεί το έργο του Κωνσταντίνου Ζ΄ Πορφυρογέννητου, γνωστό ως « Περί Βασιλείου Τάξεως» ή Βιβλίο των Τελετών. Σε αυτό το έργο καταβλήθηκε προσπάθεια να καταγραφεί το τυπικό που ακολουθούνταν κατά τις μεγάλες εορτές του Χριστιανισμού και που αφορούσε τον αυτοκράτορα, τον ανώτερο και κατώτερο κλήρο, τους αξιωματούχους και τον απλό λαό. Ιδιαίτερη έμφαση δόθηκε στην παρουσίαση του τυπικού των εορτών, καθώς σε αυτό είναι αφιερωμένο το μεγαλύτερο μέρος του έργου. Ωστόσο, στο παρόν πόνημα γίνεται αναφορά και σε άλλες εκφάνσεις τους βυζαντινού βίου, όπως οι εκστρατείες, ο τρόπος ενδυμασίας, οι αγώνες στον Ιππόδρομο, καθώς και τα προαναφερθέντα μνημονεύονται στο έργο που μελετήσαμε. Στην προσπάθεια να φέρουμε τον αναγνώστη κοντά το έργο αυτό παρατίθενται αυτούσια χωρία, ώστε να καταδειχτεί η αξία του ως πρωτογενής πηγή άντλησης πληροφοριών για τον βυζαντινό βίου του 10ου αιώνα.
description: The purpose of this work is to gather information about Byzantine court and imperial etiquette during the 10th century. The most important source is the work of Constantine VII Porphyrogenitus, known as "Peri Vassiliou Order" or Book of Ceremonies. In this work an attempt was made to record the formality followed during the great festivals of Christianity and which concerned the emperor, the upper and lower clergy, the officials and the common people. Particular emphasis was placed on the presentation of the typical of the holidays, as the greater part of the work is dedicated to this. . However, in this poem, reference is also made to other aspects of Byzantine life, such as the campaigns, the way of clothing, the races in the Hippodrome, as well as the aforementioned mentioned in the work we have studied. In an effort to bring the reader closer to this work, complete passages are listed, in order to demonstrate its value as a primary source of information on Byzantine life in the 10th century.
description: Σε συνεργασία με: Κοινωνικής Θεολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών)
Petrov type I silent universes with G3 isometry group: the uniqueness result recovered
Creators: name: Wylleman, Lode
name: Bergh, Norbert Van den
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The \emph{silent universe conjecture} (Sopuerta 1997, van Elst et al. 1997) states that the only algebraically general silent universes are the orthogonally spatially homogeneous Bianchi I models. In the same paper by Sopuerta this was confirmed for the subcase where the spacetime also admits a group G3 of isometries. However the proof contains a conceptual mistake. We recover the result in a different way.
description: 5 pages, no figures
Rezeption - ein Zentralbegriff der ökumenischen Diskussion oder des Glaubensvollzugs?
Creators: name: Wolfinger, Franz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 1 (1978): Ökumenische Rundschau, Band 27, Heft 1
Machine Learning in QM/MM Molecular Dynamics Simulations of Condensed-Phase Systems
Creators: name: Böselt, Lennard
name: Thürlemann, Moritz
name: Riniker, Sereina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Quantum mechanics/molecular mechanics (QM/MM) molecular dynamics (MD) simulations have been developed to simulate molecular systems, where an explicit description of changes in the electronic structure is necessary. However, QM/MM MD simulations are computationally expensive compared to fully classical simulations as all valence electrons are treated explicitly and a self-consistent field (SCF) procedure is required. Recently, approaches have been proposed to replace the QM description with machine learned (ML) models. However, condensed-phase systems pose a challenge for these approaches due to long-range interactions. Here, we establish a workflow, which incorporates the MM environment as an element type in a high-dimensional neural network potential (HDNNP). The fitted HDNNP describes the potential-energy surface of the QM particles with an electrostatic embedding scheme. Thus, the MM particles feel a force from the polarized QM particles. To achieve chemical accuracy, we find that even simple systems require models with a strong gradient regularization, a large number of data points, and a substantial number of parameters. To address this issue, we extend our approach to a delta-learning scheme, where the ML model learns the difference between a reference method (DFT) and a cheaper semi-empirical method (DFTB). We show that such a scheme reaches the accuracy of the DFT reference method, while requiring significantly less parameters. Furthermore, the delta-learning scheme is capable of correctly incorporating long-range interactions within a cutoff of 1.4 nm. It is validated by performing MD simulations of retinoic acid in water and the interaction between S-adenoslymethioniat with cytosine in water. The presented results indicate that delta-learning is a promising approach for (QM)ML/MM MD simulations of condensed-phase systems.
Productions of X(1835) as baryonium with sizable gluon content
Creators: name: Ding, Gui-Jun
name: Ping, Rong-Gang
name: Yan, Mu-Lin
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The X(1835) has been treated as a baryonium with sizable gluon content, and to be almost flavor singlet. This picture allows us to rationally understand X(1835) production in $J/ψ$ radiative decays, and its large couplings with $p\bar{p}$, $η^{\prime}ππ$. The processes $Υ(1S)\to γX(1835)$ and $J/ψ\to ωX(1835)$ have been examined. It has been found that $Br(Υ(1S)\toγX(1835))Br(X(1835)\to p\bar{p})<6.45\times10^{-7}$, which is compatible with CLEO's recently experimental result (Phys.Rev.$\mathbf{D73}$ (2006) 032001;hep-ex/0510015). The branching fractions of $Br(J/ψ\toωX(1835))$, $Br(J/ψ\toρX(1835))$ with $X(1835)\to p\bar{p}$ and $X(1835)\toη^{\prime}π^{+}π^{-}$ have been estimated by the quark-pair creation model. We show that they are heavily suppressed, so the signal of X(1835) is very difficult, if not impossible, to be observed in these processes. The experimental checks for these estimations are expected. The existence of the baryonium nonet is conjectured, and a model independent derivation of their production branching fractions is presented.
description: 21 pages, 4 figures
Enumeration of uni-singular algebraic hypersurfaces
Creators: name: Kerner, Dmitry
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N10;14J70

description: We enumerate complex algebraic hypersurfaces in $P^n$, of a given (high) degree with one singular point of a given singularity type. Our approach is to compute the (co)homology classes of the corresponding equi-singular strata in the parameter space of hypersurfaces. We suggest an inductive procedure, based on intersection theory combined with liftings and degenerations. The procedure computes the (co)homology class in question, whenever a given singularity type is properly defined and the stratum possesses good geometric properties. We consider in details the generalized Newton-non-degenerate singularities. We give also examples of enumeration in some other cases.
description: Published version
Farm Computer Uptake and Practices in New Zealand
Creators: name: Nuthall, Peter L.
name: Bishop-Hurley, G.J.
name: Nuthall, Peter L.
name: Bishop-Hurley, G.J.
Publisher: name: Unknown
Year: 1995
Subjects: Research and Development/Tech Change/Emerging Technologies

description: There is wide interest in both management circles and service industries in forecasts of the future uptake of computers on farm and horticultural businesses. Similarly, knowledge of how computer owning managers are utilizing them is of interest. From a 1992/93 postal survey of a stratified random sample of New Zealand producers it was determined that of the 24 per cent with computers, 19 per cent used them for business purposes and 5 per cent solely for entertainment and other non-business functions. An analysis of the length of past and anticipated ownership suggests New Zealand farmers are near the maximum uptake rate on the traditional sigmoid adoption curve. Existing ownership was positively correlated with farmer education level and farm size. On average, the computer was used 6.87 hours/week and three-quarters of respondents believed the benefits compensated for the costs. Farm budgeting and financial recording were the major business uses.
Strong disorder RG approach of random systems
Creators: name: Igloi, Ferenc
name: Monthus, Cecile
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: There is a large variety of quantum and classical systems in which the quenched disorder plays a dominant rôle over quantum, thermal, or stochastic fluctuations : these systems display strong spatial heterogeneities, and many averaged observables are actually governed by rare regions. A unifying approach to treat the dynamical and/or static singularities of these systems has emerged recently, following the pioneering RG idea by Ma and Dasgupta and the detailed analysis by Fisher who showed that the Ma-Dasgupta RG rules yield asymptotic exact results if the broadness of the disorder grows indefinitely at large scales. Here we report these new developments by starting with an introduction of the main ingredients of the strong disorder RG method. We describe the basic properties of infinite disorder fixed points, which are realized at critical points, and of strong disorder fixed points, which control the singular behaviors in the Griffiths-phases. We then review in detail applications of the RG method to various disordered models, either (i) quantum models, such as random spin chains, ladders and higher dimensional spin systems, or (ii) classical models, such as diffusion in a random potential, equilibrium at low temperature and coarsening dynamics of classical random spin chains, trap models, delocalization transition of a random polymer from an interface, driven lattice gases and reaction diffusion models in the presence of quenched disorder. For several one-dimensional systems, the Ma-Dasgupta RG rules yields very detailed analytical results, whereas for other, mainly higher dimensional problems, the RG rules have to be implemented numerically. If available, the strong disorder RG results are compared with another, exact or numerical calculations.
description: review article, 195 pages, 36 figures; final version to be published in Physics Reports
Evolution of magnetic-field-induced ordering in the layered structure quantum Heisenberg triangular-lattice antiferromagnet Ba$_3$CoSb$_2$O$_9$
Creators: name: Fortune, N. A.
name: Huang, Q.
name: Hong, T.
name: Ma, J.
name: Choi, E. S.
name: Hannahs, S. T.
name: Zhao, Z. Y.
name: Sun, X. F.
name: Takano, Y.
name: Zhou, H. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Quantum fluctuations in the effective spin one-half layered structure triangular-lattice quantum Heisenberg antiferromagnet Ba$_3$CoSb$_2$O$_9$ lift the classical degeneracy of the antiferromagnetic ground state in magnetic field, producing a series of novel spin structures for magnetic fields applied within the crystallographic ab plane. Theoretically unresolved, however, are the effects of interlayer antferromagnetic coupling and transverse magnetic fields on the ground states of this system. To address these issues, we have used specific heat, neutron diffraction, thermal conductivity, and magnetic torque measurements to map out the phase diagram as a function of magnetic field intensity and orientation relative to the crystallographic ab plane. For H parallel to the ab plane, we have discovered an additional, previously unreported magnetic-field-induced phase transition at low temperature and an unexpected tetracritical point in the high field phase diagram, which - coupled with the apparent second-order nature of the phase transitions - eliminates several theoretically proposed spin structures for the high field phases. Our calorimetric measurements as a function of magnetic field orientation are in general agreement with theory for field-orientation angles close to plane parallel but diverge at angles near plane perpendicular; a predicted convergence of two phase boundaries at finite angle and a corresponding change in the order of the field induced phase transition is not observed experimentally. Our results emphasize the role of interlayer coupling in selecting and stabilizing field-induced phases, provide new guidance into the nature of the magnetic order in each phase, and reveal the need for new physics to account for the nature of magnetic ordering in this archetypal 2D spin one-half triangular lattice quantum Heisenberg antiferromagnet.
description: 10 pages, 11 figures
On The Direct Detection of Dark Matter- Exploring all the signatures of the neutralino-nucleus interaction
Creators: name: Vergados, J. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Various issues related to the direct detection of supersymmetric dark matter are reviewed. Such are: 1) Construction of supersymmetric models with a number of parameters, which are constrained from the data at low energies as well as cosmological observations. 2) A model for the nucleon, in particular the dependence on the nucleon cross section on quarks other than u and d. 3) A nuclear model, i.e. the nuclear form factor for the scalar interaction and the spin response function for the axial current. 4) Information about the density and the velocity distribution of the neutralino (halo model). Using the present experimental limits on the rates and proper inputs in 3)-4) we derive constraints in the nucleon cross section, which involves 1)-2). Since the expected event rates are extremely low we consider some additional signatures of the neutralino nucleus interaction, such as the periodic behavior of the rates due to the motion of Earth (modulation effect), which, unfortunately, is characterized by a small amplitude. This leads us to examine the possibility of suggesting directional experiments, which measure not only the energy of the recoiling nuclei but their direction as well. In these, albeit hard, experiments one can exploit two very characteristic signatures: a)large asymmetries and b) interesting modulation patterns. Furthermore we extended our study to include evaluation of the rates for other than recoil searches such as: i) Transitions to excited states, ii) Detection of recoiling electrons produced during the neutralino-nucleus interaction and iii) Observation of hard X-rays following the de-excitation of the ionized atom.
description: 31 pages including 12 figures and 3 tables: Lectures given at the Third Aegean Summer School "The Invisible Universe: Dark Matter and Dark Energy", 26 September-1 October 2005, Karfas, Island of Chios, Greece (to appear in the proceedings)
Properties of Trapped Bose gas with vortices in large-gas-parameter regime
Creators: name: Banerjee, Arup
name: Singh, Manoranjan P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the properties of the vortex state of a trapped Bose gas in the large-gas-parameter regime. To test validity of the Gross-Pitaevskii theory in this regime for the vortex states we compare the results of the Gross-Pitaevskii and the modified Gross-Pitaevskii calculations for the total energy, the chemical potential, the density profile and the frequency shift of the quadrupole modes of the collective oscillations of the condensate. We find that in the large-gas-parameter regime two calculations give substantially different results for all the properties mentioned above
description: 19 pages with 5 eps figures
Estimation of CP violating EDMs from known mechanisms in the SM
Creators: name: Mohanmurthy, Prajwal
name: Winger, Jeff A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: New sources of CP violation, beyond the known sources in the standard model (SM), are required to explain the baryon asymmetry of the universe. Measurement of a non-zero permanent electric dipole moment (EDM) for fundamental particles, such as in an electron or a neutron, or in nuclei or atoms, can help us gain a handle on the sources of CP violation, both in SM and beyond. Multiple mechanisms within the SM can generate CP violating EDMs, viz.\ through the CKM matrix in the weak sector or through the QCD $\barθ$ parameter in the strong sector. We will estimate the maximum possible EDMs of leptons, certain baryons, select atoms and molecules in the (CKM$\bigoplus\barθ$) framework, assuming that the EDM wholly originates from either of the two SM mechanisms, independently. These estimates have been presented in light of the current experimental upper limits on the EDMs, in the following systems - leptons: $e^-$, $μ^-$, $τ^-$, $ν_e^0$, $ν^0_μ$, $ν^0_τ$, baryons: $n^0$, $p^+$, $Λ^0$, $Σ^0$, $Ξ^0$, $Λ^+_c$, $Ξ^+_c$, atoms: $^{85}$Rb, $^{133}$Cs, $^{210}$Fr, $^{205}$Tl, $^{199}$Hg, $^{129}$Xe, $^{225}$Ra, $^{223}$Rn, and molecules: HfF$^+$, PbO, YbF, ThO, RaF, TlF. Particularly, to drive home the point that EDMs in different systems constrain CP-violating interactions differently, we show that the same measured constraint on the EDM in two different systems may not actually be equally constraining on CP violating parameters, and to emphasize the need to measure a non-zero EDM in multiple systems before understanding the origins of these CP-violating EDMs.
description: Proceedings of The 40th International Conference on High Energy Physics, ICHEP-2020; Jul 28-Aug 6, 2020, Prague, Czech Republic; Abs. ID: 97. 11 Pages, 6 Tables, 1 figure. Version 1 sets $\{C_S, C_T\}=0$, these constraints have been relaxed in version 3. Version 2 experimental values (red) are expected measurement sensitivities in the near future. Typos have been edited
Systematic uncertainties in models of the cosmic dawn
Creators: name: Mirocha, Jordan
name: Lamarre, Henri
name: Liu, Adrian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Models of the reionization and reheating of the intergalactic medium (IGM) at redshifts $z \gtrsim 6$ continue to grow more sophisticated in anticipation of near-future 21-cm, cosmic microwave background, and galaxy survey measurements. However, there are many potential sources of systematic uncertainty in models that could bias and/or degrade upcoming constraints if left unaccounted for. In this work, we examine three commonly-ignored sources of uncertainty in models for the mean reionization and thermal histories of the IGM: the underlying cosmology, halo mass function (HMF), and choice of stellar population synthesis (SPS) model. We find that cosmological uncertainties affect the Thomson scattering optical depth at the few percent level and the amplitude of the global 21-cm signal at the $\sim$5-10 mK level. The differences brought about by choice of HMF and SPS models are more dramatic, comparable to the $1 σ$ error-bar on $τ_e$ and a $\sim 20$ mK effect on the global 21-cm signal amplitude. Finally, we jointly fit galaxy luminosity functions and global 21-cm signals for all HMF/SPS combinations and find that (i) doing so requires additional free parameters to compensate for modeling systematics and (ii) the spread in constraints on parameters of interest for different HMF and SPS choices, assuming $5$ mK noise in the global signal, is comparable to those obtained when adopting the "true" HMF and SPS with $\gtrsim 20$ mK errors. Our work highlights the need for dedicated efforts to reduce modeling uncertainties in order to enable precision inference with future datasets.
description: 10 pages, 8 figures, in press
Ruled Fano fivefolds of index two
Creators: name: Novelli, Carla
name: Occhetta, Gianluca
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J45

description: We classify Fano fivefolds of index two which are projectivization of rank two vector bundles over four dimensional manifolds.
description: 30 pages
Factors Predicting Maternal Feeding Behaviors for Toddlers in Java Island, Indonesia
Creators: name: Ethic Palupi
name: Waraporn Chaiyawat
Publisher: name: Chulalongkorn University Press
Year: 2016
Subjects: Maternal feeding behaviors,Pender's Health Promotion Model,Toddler,Indonesia

description: 1, 30, Journal of Health Research
REGIONAL INPUT-OUTPUT AND SOCIAL ACCOUNTING SYSTEMS FOR AGRICULTURAL AND RURAL DEVELOPMENT PLANNING
Creators: name: Maki, Wilbur R.
name: Maki, Wilbur R.
Publisher: name: Unknown
Year: 1980
Subjects: Community/Rural/Urban Development

description: This report presents selected statistics of inter-industry inter-dependence which focus on the importance and role of agriculture and agriculture-related industry in regional economic development. Data for two vastly different regions-- the state of Minnesota and the Northeast Region of Thailand-- are presented to show the wide differences in regional economic relationships and activity levels which occur and which are amenable, nonetheless, to similar methods of economic accounting and analysis. These methods include use of regional input-output and socio-economic accounts for monitoring, assessing and comparing the effects of particular agricultural and agriculture-related industry development strategies on a total regional economy and, also, through its exports and imports, on the rest of the nation.
Imprint of first stars era in the cosmic infrared backround fluctuations
Creators: name: Kashlinsky, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the latest results on CIB fluctuations from early epochs from deep Spitzer data. The results show the existence of significant CIB fluctuations at the IRAC wavelengths (3.6 to 8 mic) which remain after removing galaxies down to very faint levels. These fluctuations must arise from populations with a significant clustering component, but only low levels of the shot noise. There are no correlations between the source-subtracted IRAC maps and the corresponding fields observed with the HST ACS at optical wavelengths. Taken together, these data imply that 1) the sources producing the CIB fluctuations are individually faint with S_ν< a few nJy at 3.6 and 4.5 mic; 2) have different clustering pattern than the more recent galaxy populations; 3) are located within the first 0.7 Gyr (unless these fluctuations can somehow be produced by - so far unobserved - local galaxies of extremely low luminosity and with the unusual for local populations clustering pattern), 4) produce contribution to the net CIB flux of at least 1-2 nW/m^2/sr at 3.6 and 4.5 mic and must have mass-to-light ratio significantly below the present-day populations, and 5) they have angular density of ~ a few per arcsec^2 and are in the confusion of the present day instruments, but can be individually observable with JWST.
description: Talk at IAU 250 "Massive stars as cosmic engines", Hawaii, Dec 2007
Classical and quantum exact solutions for a FRW in chiral like cosmology
Creators: name: Socorro, J.
name: Pérez-Payán, S.
name: Hernández, Rafael
name: Espinoza-García, Abraham
name: Díaz-Barrón, Luis Rey
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83C15, 83F05

description: In this work, first, we study a flat Friedmann-Robertson-Walker Universe with two scalar fields but only one potential term, which can be thought as a simple quintessence plus a K-essence model. Employing the Hamiltonian formalism we are able to obtain the classical and quantum solutions. The second model studied, is also a flat Friedmann-Robertson-Walker Universe with two scalar fields, with the difference that the two potentials are considered as well as the standard kinetic energy and the mixed term (chiral field approach). Regarding this second model, it is shown that setting to zero the coefficient accompanying the mixed momenta term, two possible cases can be studied: a quintom like case ($m^{12}_{+}$) and a quintessence like case ($m^{12}_{-}$). For both scenarios classical and quantum solutions are presented.
description: 30 pages, 14 figures, 3 tables, last version to be published in CQG journal
On the theory of spaces of constant curvature
Creators: name: Dryuma, V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53 B20, 53C20

description: Some examples of three-dimensional metrics of constant curvature defined by solutions of nonlinear integrable differential equations and their generalizations are constructed. The properties of Riemann extensions of the metrics of constant curvature are studied. The connection with the theory of normal Riemann spaces are discussed.
description: 12 pages, LaTex
An analysis pipeline for CHIME/FRB full-array baseband data
Creators: name: Michilli, D.
name: Masui, K. W.
name: Mckinven, R.
name: Cubranic, D.
name: Bruneault, M.
name: Brar, C.
name: Patel, C.
name: Boyle, P. J.
name: Stairs, I. H.
name: Renard, A.
name: Bandura, K.
name: Berger, S.
name: Breitman, D.
name: Cassanelli, T.
name: Dobbs, M.
name: Kaspi, V. M.
name: Leung, C.
name: Mena-Parra, J.
name: Pleunis, Z.
name: Russell, L.
name: Scholz, P.
name: Siegel, S. R.
name: Tendulkar, S. P.
name: Vanderlinde, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Canadian Hydrogen Intensity Mapping Experiment (CHIME) has become a leading facility for detecting fast radio bursts (FRBs) through the CHIME/FRB backend. CHIME/FRB searches for fast transients in polarization-summed intensity data streams that have 24-kHz spectral and 1-ms temporal resolution. The intensity beams are pointed to pre-determined locations in the sky. A triggered baseband system records the coherent electric field measured by each antenna in the CHIME array at the time of FRB detections. Here we describe the analysis techniques and automated pipeline developed to process these full-array baseband data recordings. Whereas the real-time FRB detection pipeline has a localization limit of several arcminutes, offline analysis of baseband data yields source localizations with sub-arcminute precision, as characterized by using a sample of pulsars and one repeating FRB with known positions. The baseband pipeline also enables resolving temporal substructure on a micro-second scale and the study of polarization including detections of Faraday rotation.
Efficiency and Integration in the Food Supply Chain
Creators: name: Jarzebowski, Sebastian
name: Bezat-Jarzebowska, Agnieszka
name: Klepacki, Bogdan
Publisher: name: CentMA
Year: 2013
Subjects: integration; food supply chain; economic performance; Stochastic Frontier Analysis

description: Due to the nature of the food supply chain, an increase of the integration's degree in the chain may be an important aspect in the context of increasing the efficiency of agri-food companies. Therefore, exploring the relationships among these variables was found as an important research area and adopted as the goal of the paper. The paper is focused mainly on the theoretical background showing the relationship between integration and performance. A description of the theoretical and methodological aspects of performance measurement and its extension (including the integration aspect) was also made within the framework of the paper.
For an empirical illustration of the analyzed relationships two steps were made. Firstly, the integration's degree in the food chain was measured. Secondly, the efficiency of the companies from the cereals processing industry in Europe was assessed. The SFA models (e.g. Translog and Cobb-Douglas functional form) were used for assessment of efficiency. By using stochastic method (e.g. the SFA, Stochastic Frontier Analysis), one may show the influence of external variable (the integration in the supply chain) on the efficiency performance of enterprises. Efficiency of economic entities is not an unambiguous term. There are several different concepts of efficiency, its measurement and expressions. Within the framework of efficiency, many terms of similar meaning may be applied. However, these concepts are not identical. The actual concept of efficiency is derived from the structure of the production function, therefore it is conditioned by changes in the productivity of production factors and their remuneration and refers to the allocation of production factors in the most technically efficient way.
description: International Journal on Food System Dynamics, Vol 4, No 3 (2013)
GANIL Status report
Creators: name: Jacquot, B.
name: Chautard, F.
name: Savalle, A.
name: Collaboration, the SPIRAL
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The GANIL-Spiral facility (Caen, France) is dedicated to the acceleration of heavy ion beams for nuclear physics, atomic physics, radiobiology and material irradiation. The production of radioactive ion beams for nuclear physics studies represents the main part of the activity. The facility possesses a versatile combination of equipments, which permits to produce accelerated radioactive ion beams with two complementary methods: Isotope Separation In Line (ISOL) and In-Flight Separation techniques (IFS). Considering the future of GANIL, SPIRAL II projects aims to produce high intensity secondary beams, by fission induced with a 5 mA deuteron beam on an uranium target.
description: 5 pages, 5 figures, to be appear in the proceedings of the 17th International Conference on Cyclotrons and their Applications
Reconciling a quantum gravity minimal length with lack of photon dispersion
Creators: name: Bishop, Michael
name: Contreras, Joey
name: Lee, Jaeyeong
name: Singleton, Douglas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Generic arguments lead to the idea that quantum gravity has a minimal length scale. A possible observational signal of such a minimal length scale is that photons should exhibit dispersion. In 2009 the observation of a short gamma ray burst seemed to bound the minimal length scale to distances smaller than the Planck length, implying that spacetime appeared continuous to distances below the Planck length. This poses a challenge for such minimal distance models. Here we propose a modification of the position and momentum operators, ${\hat x}$ and ${\hat p}$, which lead to a minimal length scale, but preserve the photon energy-momentum relationship $E = p c$. In this way there is no dispersion of photons with different energies. This can be accomplished without modifying the commutation relationship $[{\hat x}, {\hat p}] = i \hbar$.
description: 17 pages and 4 figures. Added references and discussion to address reviewer comments. To be published in PLB
Valuing Information on GM Foods in the Presence of Country-of-Origin Labels
Creators: name: Xie, Jing
name: Kim, Hyeyoung
name: House, Lisa
Publisher: name: CentMA
Year: 2014
Subjects: Genetically modified food; biotechnology; country of origin; consumer attitudes

description: Information on production methods (genetic modification (GM) or organic production) and locations (country of origin) are commonly found on food package labels. Both pieces of information may be used as a proxy for food safety and (perceived) quality by consumers. Our study investigates the interactive effects between information on production method and country-of-origin labeling (COOL) by conducting choice experiments in the European Union, United States and Japan. This study also investigates the effect of information about potential benefits of biotechnology on consumer acceptance of GM foods. Results indicate that consumers preferred GM foods produced domestically to GM foods imported from foreign countries, and individuals with information on consumer benefits, producer benefits, and environmental benefits were willing to pay more than individuals without information in some cases, but the effect of information varied by type of information, location, and the country of origin of the products.
description: International Journal on Food System Dynamics, Vol 4, No 3 (2013)
The impact of smoking and other clinical factors in oral health. Prediction of tartar and/or tooth decay formation
Creators: name: Βενιζέλος, Δημήτριος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Μηχανική μάθηση
Αλγόριθμοι
Πρόβλεψη
Machine learning
Algorithms
Prediction

description: It is very important for the medical professionals, to investigate the impact of smoking, biomarkers and other causative agents in oral hygiene generally. The thesis focuses on investigating the impact of clinical factors as well as habits, such as smoking, on dental health, with an emphasis on the formation of tartar and/or tooth decay. A lot of diseases can affect the oral status of a person and vice versa oral health can play an important role in the overall health status. The aim of the research is the creation of a predictive model with outputs the variables “tartar” and “dental.caries”. By performing machine learning with algorithms in R language, the relationship between smoking and other clinical factors and the formation of tooth decay and tartar is investigated. The investigation is performed using open-source data, which consists of a collection of 27 variables of biological health signals. The results of the research are based on the evaluation of the machine learning model, according to its precision on predicting the formation of tartar and tooth decay. The findings of the research show how interrelated is oral health with the occurrence of different diseases and the opposite, as well as how smoking affects oral health.
description: Είναι πολύ σημαντικό για τους επιστήμονες υγείας να ερευνήσουν την επίδραση του καπνίσματος και διαφόρων βιοδεικτών στη στοματική υγεία συνολικά. Η διπλωματική εστιάζει στην διερεύνηση της επίδρασης των κλινικών παραγόντων, καθώς και έξεων, όπως το κάπνισμα, στη στοματική υγεία, με έμφαση στην εμφάνιση οδοντικής τρυγίας ή/και τερηδόνας. Η έρευνα στηρίχθηκε στην αξιοποίηση ανοιχτών δεδομένων. Πολλές ασθένειες μπορούν να επηρεάσουν τη κατάσταση του στόματος ενός ατόμου και αντιστρόφως η στοματική υγεία μπορεί να παίξει σημαντικό ρόλο στη συνολική κατάσταση της υγείας του ανθρώπου. Σκοπός της έρευνας είναι η δημιουργία ενός μοντέλου πρόβλεψης με εξαγόμενες μεταβλητές “τρυγία” και “τερηδόνα”. Με τη μέθοδο της μηχανικής μάθησης χρησιμοποιώντας αλγορίθμους σε R γλώσσα προγραμματισμού ερευνάται η σχέση του καπνίσματος και άλλων κλινικών παραγόντων με την εμφάνιση οδοντικής τρυγίας και τερηδόνας. Για την έρευνα χρησιμοποιήθηκαν ανοιχτά δεδομένα που περιλαμβάνουν μια συλλογή 27 μεταβλητών βιολογικών σημάτων υγείας. Τα αποτελέσματα της έρευνας στηρίζονται στην αξιολόγηση του μοντέλου μηχανικής μάθησης με βάση την ακρίβειά του στην πρόβλεψη της εμφάνισης τερηδόνας και οδοντικής τρυγίας. Τα συμπεράσματα της έρευνας καταδεικνύουν πόσο αλληλένδετη είναι η στοματική υγιεινή με την εμφάνιση διαφόρων νόσων και αντίστροφα, καθώς και πώς επηρεάζει το κάπνισμα την υγεία του στόματος.
A Latent Class Model to discover Household Food Waste Patterns in Lisbon City in Support of Food Security, Public Health and Environmental Protection
Creators: name: Fonseca, Jaime R.S.
Publisher: name: CentMA
Year: 2014
Subjects: Household Food Waste; Citizen Behaviour; Recycling Waste; Mixed Method Research

description: In the middle of a great world financial crisis that also affects food security, it is important to characterize the habits of households concerning the buying and wasting food. With this study we intend (1) to uncover the patterns of Portuguese citizens concerning food waste by using a mixed research approach and (2) to identify demographic factors that can influence the production of food waste and that may support initiatives towards the education of society on food waste. We used a random sample of 542 Portuguese citizens to identify consumer profiles and 18 in-depth interviews for better understanding the uncovered profiles in a mixed method research approach. Through a two-latent class model two clusters of consumers were identified: cluster 1, the Non food waste citizens with 65% of respondents, mainly 24 years or more, female and married or divorced and cluster 2, the Food waste citizens  with 35% of respondents, mainly up to 23 years old, male and single. Our findings may impact in two distinct ways: they may be used to educate Portuguese citizens concerning the issue of food waste and they may be useful in contributing to a less polluted world.
description: International Journal on Food System Dynamics, Vol 4, No 3 (2013)
High Energy Evolution - The Wave Function Point of View
Creators: name: Kovner, Alex
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: These lectures discuss aspects of high energy evolution in QCD. This includes the derivation of the JIMWLK equation, basic physics of its solutions and recent work on inclusion of Pomeron loops. The entire discussion is given in the Hamiltonian framework which gives direct access to the evolution of hadronic wave function under Lorentz boost.
description: Lectures given at XLV Cracow School of Theoretical Physics, Zakopane June 2005; 41 pages
Sum Rule Approach to the Isoscalar Giant Monopole Resonance in Drip Line Nuclei
Creators: name: Centelles, M.
name: Vinas, X.
name: Patra, S. K.
name: De, J. N.
name: Sil, Tapas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the density-dependent Hartree-Fock approximation and Skyrme forces together with the scaling method and constrained Hartree-Fock calculations, we obtain the average energies of the isoscalar giant monopole resonance. The calculations are done along several isotopic chains from the proton to the neutron drip lines. It is found that while approaching the neutron drip line, the scaled and the constrained energies decrease and the resonance width increases. Similar but smaller effects arise near the proton drip line, although only for the lighter isotopic chains. A qualitatively good agreement is found between our sum rule description and the presently existing random phase approximation results. The ability of the semiclassical approximations of the Thomas-Fermi type, which properly describe the average energy of the isoscalar giant monopole resonance for stable nuclei, to predict average properties for nuclei near the drip lines is also analyzed. We show that when hbar corrections are included, the semiclassical estimates reproduce, on average, the quantal excitation energies of the giant monopole resonance for nuclei with extreme isospin values.
description: 31 pages, 12 figures, revtex4; some changes in text and figures
Biaxial versus uniaxial strain tuning of single-layer MoS$_2$
Creators: name: Carrascoso, Felix
name: Frisenda, Riccardo
name: Castellanos-Gomez, Andres
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Strain engineering has arisen as a powerful technique to tune the electronic and optical properties of two-dimensional semiconductors like molybdenum disulfide (MoS2). Although several theoretical works predicted that biaxial strain would be more effective than uniaxial strain to tune the band structure of MoS2, a direct experimental verification is still missing in the literature. Here we implemented a simple experimental setup that allows to apply biaxial strain through the bending of a cruciform polymer substrate. We used the setup to study the effect of biaxial strain on the differential reflectance spectra of 12 single-layer MoS2 flakes finding a redshift of the excitonic features at a rate between -40 meV/% and -110 meV/% of biaxial tension. We also directly compare the effect of biaxial and uniaxial strain on the same single-layer MoS2 finding that the biaxial strain gauge factor is 2.3 times larger than the uniaxial strain one.
description: 5 figures + 1 table in the main text. 6 figures in the supp. info
Metastable gauged O'Raifeartaigh
Creators: name: Bajc, Borut
name: Melfo, Alejandra
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the possibility of obtaining metastable supersymmetry breaking vacua in a perturbative gauge theory without singlet fields, thus allowing for scenarios where a grand unified symmetry and supersymmetry are broken by the same sector. We show some explicit SU(5) examples. The minimal renormalizable example requires the use of two adjoints, but it is shown to inevitably lead to unwanted light states. We suggest various alternatives, and show that the viable possibilities consist of allowing for non-renormalizable operators, of employing four adjoints or of adding at least one field in a different representation.
description: Typos corrected
Factors Underlying Farmers’ Decisions to Participate in Networks
Creators: name: Kühne, Bianka
name: Lambrecht, Evelien
name: Vanhonacker, Filiep
name: Pieniak, Zuzanna
name: Gellynck, Xavier
Publisher: name: CentMA
Year: 2014

description: The objective of this elicitation study is to provide insights into farmers’ beliefs which influence their participation in knowledge exchange and innovation networks to enable the enhancement of network participation. A set of facilitating and impeding factors was obtained. Participants identified (a) 13 categories of behavioural beliefs (e.g. ‘You learn something’ and ‘Low perceived return on investment’), (b) 4 groups of normative beliefs (influence of colleagues, spouses, network coordinators and chain partners) and (c) 11 control beliefs (facilitators or barriers related to, for example, ‘Network skills’, ‘No time’ and ‘Perceived restraint by farmers in communicating openly and honestly’).
description: International Journal on Food System Dynamics, Vol 4, No 3 (2013)