cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterization and manipulation of prefrontal cortex D2 dopamine receptors in the rat
Creators: name: Alexander John, MacLennan
Publisher: name: University of British Columbia
Year: 2010

description: A radioligand binding assay was developed to measure possible D2 dopamine receptors in the medial prefrontal cortex (mpfc) of the rat. It was demonstrated with competition studies at pH 7.9 that these candidate sites are, in fact, D2 receptors. All compounds without activity on dopaminergic systems were ineffective competitors at nanomolar concentrations. Dopamine was more potent than noradrenaline which was more potent than serotonin. At nanomolar concentrations, all dopamine receptor antagonists that were tested competed for the D2 binding. The IC50's of the dopamine receptor antagonists correlated with their in vivo potencies. The IC50's of all compounds tested with mpfc tissue correlated highly with their IC50's in an identical assay of the striatum. However, the dopamine receptor agonists, apomorphine and ADTN, were significantly more potent in the mpfc. The competition curves of the dopamine receptor agonists suggested that the mpfc, when compared to the striatum, contains a higher proportion of receptors with a high affinity for dopamine receptor agonists. Reducing the pH of the assay from pH 7.9 to pH 6.2 eliminated the difference in agonist affinity but did not affect the IC50 correlations between brain regions or the correlations with in vivo potencies. The reduction in pH increased the percent of D2 binding in the mpfc assay by presumably reducing spirodecanone binding. Consequently the pH 6.2 assay displayed a higher sensitivity to changes in D2 binding. Chronic haloperidol administration for 21 weeks increased the D2 binding in the mpfc (as measured at pH 6.2) by approximately 50% compared to approximately 70% in the striatum. Footshock stress increased the D2 binding measured at pH 6.2 by approximately 13% in the mpfc and had no effect in the striatum. Footshock stress increased the Bmax of the D2 binding measured at pH 7.9 by approximately 100% in the mpfc and reduced the affinity by approximately 70%. The striatal D2 binding was unaffected by footshock stress as measured at pH 7.9.
The participatory public policy formulation of civil society on chemical usage reduction in agriculture: the case of Nong Bua Lamphu, Thailand
Creators: name: Pit Jitpakdee, Jittasak Putjorn
Publisher: name: Silpakorn University Research Innovation and Creativity Administration Office
Year: 2021
Subjects: Public policy, agricultural chemicals, civil society, participation, organic agriculture

description: Humanities, Arts and Social Sciences Studies, 21, 3, 416-424
Local Approach to Hawking Radiation
Creators: name: Peltola, Ari
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider an approach to the Hawking effect which is free of the asymptotic behavior of the metric or matter fields, and which is not confined to one specific metric configuration. As a result, we find that for a wide class of spacetime horizons there exists an emission of particles out of the horizon. As expected, the energy distribution of the radiating particles turns out to be thermal.
description: 10 pages, references added, discussion slightly expanded at the end of the article. To appear in CQG
Uncertainty-aware data-driven predictive control in a stochastic setting
Creators: name: Breschi, Valentina
name: Fabris, Marco
name: Formentin, Simone
name: Chiuso, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Data-Driven Predictive Control (DDPC) has been recently proposed as an effective alternative to traditional Model Predictive Control (MPC), in that the same constrained optimization problem can be addressed without the need to explicitly identify a full model of the plant. However, DDPC is built upon input/output trajectories. Therefore, the finite sample effect of stochastic data, due to, e.g., measurement noise, may have a detrimental impact on closed-loop performance. Exploiting a formal statistical analysis of the prediction error, in this paper we propose the first systematic approach to deal with uncertainty due to finite sample effects. To this end, we introduce two regularization strategies for which, differently from existing regularization-based DDPC techniques, we propose a tuning rationale allowing us to select the regularization hyper-parameters before closing the loop and without additional experiments. Simulation results confirm the potential of the proposed strategy when closing the loop.
description: 6 pages, 1 figure, this work has been submitted and accepted for publication at the IFAC World Congress 2023, Yokohama, Japan
Unparticle Physics Effects on D0-anti-D0 Mixing
Creators: name: Li, Xue-Qian
name: Wei, Zheng-Tao
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The mixing of $K^0-\bar{K^0}$, $D^0-\bar{D^0}$ and $B_{(s)}^0-\bar{B^0_{(s)}}$ provides a sensitive probe to explore new physics beyond the Standard Model. The scale invariant unparticle physics recently proposed by Georgi can induce flavor-changing neutral current and contribute to the mixing at tree level. We investigate the unparticle effects on $B^0-\bar{B^0}$ and $D^0-\bar{D^0}$ mixing. Especially, the newly observed $D^0-\bar{D^0}$ mixing sets the most stringent constraints on the coupling of the unparticle to quarks.
description: 9 pages, some errors corrected, published version
Hypostomus velhomonge Lustosa-Costa, Ramos, Zawadzki & Lima 2022
Creators: name: Koerber, Stefan
name: Guimarães, Erick Cristofore
name: Brito, Pâmella Silva de
name: Oliveira, Rafael Ferreira de
name: Ottoni, Felipe Polivanov
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Loricariidae
Hypostomus
Hypostomus velhomonge

description: H. velhomonge Lustosa-Costa, Ramos, Zawadzki & Lima, 2022
sp.nov. from the Parnaíba river basin in Maranhão
published in Lustosa-Costa et al. (2022)
description: Published as part of Koerber, Stefan, Guimarães, Erick Cristofore, Brito, Pâmella Silva de, Oliveira, Rafael Ferreira de & Ottoni, Felipe Polivanov, 2023, CLOFFBR-MA - update 1 - supplement to Checklist of the freshwater fishes of Maranhão, Brazil., pp. 1-13 in Ichthyological Contributions of PecesCriollos 84 on page 6, DOI: 10.5281/zenodo.11558473
Manifolds of Lie-Group-Valued Cocycles and Discrete Cohomology
Creators: name: Chirvasitu, Alexandru
name: Peng, Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Operator Algebras (math.OA)
subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 22E65, 17B65, 58B25, 22E41, 57N35, 46L05, 16H05, 16D60, 16K20

description: Consider a compact group $G$ acting on a real or complex Banach Lie group $U$, by automorphisms in the relevant category, and leaving a central subgroup $K\le U$ invariant. We define the spaces ${}_KZ^n(G,U)$ of $K$-relative continuous cocycles as those maps ${G^n\to U}$ whose coboundary is a $K$-valued $(n+1)$-cocycle; this applies to possibly non-abelian $U$, in which case $n=1$. We show that the ${}_KZ^n(G,U)$ are analytic submanifolds of the spaces $C(G^n,U)$ of continuous maps $G^n\to U$ and that they decompose as disjoint unions of fiber bundles over manifolds of $K$-valued cocycles. Applications include: (a) the fact that ${Z^n(G,U)\subset C(G^n,U)}$ is an analytic submanifold and its orbits under the adjoint of the group of $U$-valued $(n-1)$-cochains are open; (b) hence the cohomology spaces $H^n(G,U)$ are discrete; (c) for unital $C^*$-algebras $A$ and $B$ with $A$ finite-dimensional the space of morphisms $A\to B$ is an analytic manifold and nearby morphisms are conjugate under the unitary group $U(B)$; (d) the same goes for $A$ and $B$ Banach, with $A$ finite-dimensional and semisimple; (e) and for spaces of projective representations of compact groups in arbitrary $C^*$ algebras (the last recovering a result of Martin's).
description: final version, to appear in SIGMA; 26 pages + references
The direct oxygen abundances of metal-rich galaxies derived from electron temperature
Creators: name: Liang, Y. C.
name: Hammer, F.
name: Yin, S. Y.
name: Flores, H.
name: Rodrigues, M.
name: Yang, Yanbin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We aim to derive the electron temperature Te in the gas of metal-rich star-forming galaxies, which can be obtained from their ratios of auroral lines [O II]7320,7330 to nebular lines [O II]3727, in order to establish a more robust mass-metallicity relationship, and compare the Te-based (O/H) abundances with those from empirical strong-line calibrations, such as R23. We obtained 27 spectra by stacking the spectra of several hundred (even several thousand) star-forming galaxies selected from the SDSS-DR4 in each of the 27 stellar mass bins from log(M*) ~8.0 to 10.6 (logMsun). This "stack" method sufficiently improves the signal-to-noise ratio of the auroral lines [O II]7320,7330, which allow us to reliably obtain the electron temperature t2 in the low ionization region from the ratio of [O II]7320,7330 to [O II]3727, then t3 in the high ionization region from t2 by using a relation, and then the direct (O/H) abundances from Te. The results show that the empirical R23 method will overestimate the log(O/H) by 0.2 to 0.6 dex for these moderate metal-rich galaxies. The new metal-mass relationship of the galaxies with moderate metallicities is fitted by a linear fit (12+log(O/H) =6.223+0.231*logM*) confirming that empirical methods significantly overestimate (O/H). We also derived their (N/O) abundance ratios on the basis of the Te method, which are consistent with the combination of the primary and secondary components of nitrogen. For actual use, we re-derive the relations of 12+log(O/H)(Bay) vs. logM* and 12+log(O/H)(Bay) vs. logR23 from the SDSS-DR4 data, which are a bit different from those derived from DR2.
description: 13 pages, 12 figures, 2 tables, accepted by A&A
Brachyplatystoma vaillantii
Creators: name: Koerber, Stefan
name: Guimarães, Erick Cristofore
name: Brito, Pâmella Silva de
name: Oliveira, Rafael Ferreira de
name: Ottoni, Felipe Polivanov
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Pimelodidae
Brachyplatystoma
Brachyplatystoma vaillantii

description: B. vaillantii (Valenciennes, 1840)
first record for Maranhão from the Mearim basin
published in Limeira-Filho et al. (2023)
description: Published as part of Koerber, Stefan, Guimarães, Erick Cristofore, Brito, Pâmella Silva de, Oliveira, Rafael Ferreira de & Ottoni, Felipe Polivanov, 2023, CLOFFBR-MA - update 1 - supplement to Checklist of the freshwater fishes of Maranhão, Brazil., pp. 1-13 in Ichthyological Contributions of PecesCriollos 84 on page 6, DOI: 10.5281/zenodo.11558473
A Schelling model with a variable treshold in a closed city segregation model. Analysis of the universality classes
Creators: name: Ortega, Diego
name: Rodríguez-Laguna, Javier
name: Korutcheva, Elka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Residential segregation is analyzed via the Schelling model, in which two types of agents attempt to optimize their situation according to certain preferences and tolerance levels. Several variants of this work are focused on urban or social aspects. Whereas these models consider fixed values for wealth or tolerance, here we consider how sudden changes in the tolerance level affect the urban structure in the closed city model. In this framework, when tolerance decreases continuously, the change rate is a key parameter for the final state reached by the system. On the other hand, sudden drops in tolerance tend to group agents into clusters whose boundary can be characterized using tools from kinetic roughening. This frontier can be categorized into the Edward-Wilkinson (EW) universality class. Likewise, the understanding of these processes and how society adapts to tolerance variations are of the utmost importance in a world where migratory movements and pro-segregational attitudes are commonplace.
description: arXiv admin note: substantial text overlap with arXiv:2007.10767
L'attuazione del federalismo fiscale e la sua incidenza sulla forma di governo e sul sistema delle autonomie.
Creators: name: Raiola, Luca Vittorio
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: La tesi affronta il tema dell'attuazione del federalismo fiscale nel nostro Paese. Viene esaminata la legge delega n. 42/09 e il suo impatto sulla forma di governo (rapporto Parlamento/Governo) e sulla forma di stato (rapporto con il sistema delle autonomie).
"Indicatori del paesaggio" di Adalberto Vallega
Creators: name: Palagiano, Cosimo
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2017

description: Semestrale di studi e ricerche di geografia, N. 2 (2008): Flussi, Reti e Sistemi Informativi Geografici, tra presente e futuro a cura di Cristiano Pesaresi
Pimelodus maculatus Lacepede 1803
Creators: name: Koerber, Stefan
name: Guimarães, Erick Cristofore
name: Brito, Pâmella Silva de
name: Oliveira, Rafael Ferreira de
name: Ottoni, Felipe Polivanov
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Pimelodidae
Pimelodus
Pimelodus maculatus

description: P. maculatus Lacepède, 1803
evidence-based confirmation for Maranhão from the Parnaíba basin
published in Silva et al. (2023)
description: Published as part of Koerber, Stefan, Guimarães, Erick Cristofore, Brito, Pâmella Silva de, Oliveira, Rafael Ferreira de & Ottoni, Felipe Polivanov, 2023, CLOFFBR-MA - update 1 - supplement to Checklist of the freshwater fishes of Maranhão, Brazil., pp. 1-13 in Ichthyological Contributions of PecesCriollos 84 on page 7, DOI: 10.5281/zenodo.11558473
Data-rich astronomy: mining synoptic sky surveys
Creators: name: Cavuoti, Stefano
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: In the last decade a new generation of telescopes and sensors has allowed the production of a very large amount of data and astronomy has become, a data-rich science; this transition is often labeled as: "data revolution" and "data tsunami". The first locution puts emphasis on the expectations of the astronomers while the second stresses, instead, the dramatic problem arising from this large amount of data: which is no longer computable with traditional approaches to data storage, data reduction and data analysis.
In a new, age new instruments are necessary, as it happened in the Bronze age when mankind left the old instruments made out of stone to adopt the new, better ones made with bronze. Everything changed, even the social structure. In a similar way, this new age of Astronomy calls for a new generation of tools and, for a new methodological approach to many problems, and for the acquisition of new skills. The attems to find a solution to this problems falls under the umbrella of a new discipline which originated by the intersection of astronomy, statistics and computer science: "Astroinformatics", (Borne, 2009; Djorgovski et al., 2006).

The various topics which I addressed during Ph. D.  fall exactly in this intersection and explore some new possibilities offered by this new discipline.
Smoothing splines for discontinuous signals
Creators: name: Storath, Martin
name: Weinmann, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 65D07, 65K10, 62G08

description: Smoothing splines are twice differentiable by construction, so they cannot capture potential discontinuities in the underlying signal. In this work, we consider a special case of the weak rod model of Blake and Zisserman (1987) that allows for discontinuities penalizing their number by a linear term. The corresponding estimates are cubic smoothing splines with discontinuities (CSSD) which serve as representations of piecewise smooth signals and facilitate exploratory data analysis. However, computing the estimates requires solving a non-convex optimization problem. So far, efficient and exact solvers exist only for a discrete approximation based on equidistantly sampled data. In this work, we propose an efficient solver for the continuous minimization problem with non-equidistantly sampled data. Its worst case complexity is quadratic in the number of data points, and if the number of detected discontinuities scales linearly with the signal length, we observe linear growth in runtime. This efficient algorithm allows to use cross validation for automatic selection of the hyperparameters within a reasonable time frame on standard hardware. We provide a reference implementation and supplementary material. We demonstrate the applicability of the approach for the aforementioned tasks using both simulated and real data.
Forcing the Strong Lefschetz and the Maximal Rank Properties
Creators: name: Zanello, Fabrizio
name: Zylinski, Jeffery V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D40 (Primary) 13E10 (Secondary)

description: Three basic properties that standard graded artinian $k$-algebras may or may not enjoy are the Weak and Strong Lefschetz Properties and the Maximal Rank Property (respectively WLP, SLP, and MRP). In this paper we will assume that the base field $k$ has characteristic zero. It is known that SLP implies MRP, which in turn implies WLP, but that both implications are strict. However, it surprisingly turned out that the set of Hilbert functions admitting any algebras with WLP coincides with the corresponding set for SLP (and therefore with that for MRP). J. Migliore and the first author, using Green's theorem and a result of Wiebe, characterized the Hilbert functions forcing all algebras to enjoy WLP. The purpose of this note is to prove the corresponding characterizations for both SLP and MRP. Unsurprisingly (or surprisingly??), the two characterizations coincide, but they define a class of Hilbert functions strictly smaller than that determined for WLP. Our methods include the Herzog-Popescu theorem on quotients of $k$-algebras modulo a general form, a result of Wiebe, and gins and stable ideals. At the end, we will also discuss the importance of assuming that the characteristic be zero, and we will exhibit a class of codimension 2 monomial complete intersections for which SLP (but not MRP) fails in positive characteristic.
description: 8 pages; minor revisions; to appear in J. Pure Appl. Algebra
Collective Effects of Organic Molecules based on Holstein-Tavis-Cummings Model
Creators: name: Zhang, Quansheng
name: Zhang, Ke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the collective effects of an ensemble of organic molecules confined in an optical cavity based on Holstein-Tavis-Cummings model. By using the quantum Langevin approach and adiabatically eliminating the degree of freedom of the vibrational motion, we analytically obtain the expression of the cavity transmission spectrum to analyze the features of polaritonic states. As an application, we show that the dependence for the frequency shift of the lower polaritonic state on the number of molecules can be used in the detection of the ultra-cold molecules. We also numerically analyze the fluorescence spectrum. The variation of the spectral profile with various numbers of molecules gives signatures for the modification of molecular conformation.
description: 16 Pages,6 figures
"Atlante dell’infanzia a rischio 2016. Bambini e supereroi" di Giulio Cederna (a cura di) e Riccardo Venturi (foto di)
Creators: name: De Vecchis, Gino
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2017

description: Semestrale di studi e ricerche di geografia, N. 2 (2017): Ripensare lo spazio sociale: reti, mobilità,territorialità
Proposed strategies to strengthen community participation in community learning centers in The Kingdom of Cambodia
Creators: name: Neak Piseth And Suwithida Charungkaittikul
Publisher: name: Silpakorn University Research Innovation and Creativity Administration Office
Year: 2021
Subjects: Strategy, community learning centers (CLCs), community participation, non-formal education

description: Humanities, Arts and Social Sciences Studies, 21, 3, 436-446
"Visualizzare il paesaggio. Nuove forme di narrazione e rappresentazione dello spazio geografico" di Martina Giannini e Valentina Greco (a cura di)
Creators: name: Leonardi, Sandra
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2017

description: Semestrale di studi e ricerche di geografia, N. 2 (2017): Ripensare lo spazio sociale: reti, mobilità,territorialità
Analysis of a two-layer energy balance model: long time behaviour and greenhouse effect
Creators: name: Cannarsa, Piermarco
name: Lucarini, Valerio
name: Martinez, Patrick
name: Urbani, Cristina
name: Vancostenoble, Judith
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 86A08, 34C11, 34C12, 34D05

description: We study a two-layer energy balance model, that allows for vertical exchanges between a surface layer and the atmosphere. The evolution equations of the surface temperature and the atmospheric temperature are coupled by the emission of infrared radiation by one level, that emission being captured by the other layer, and the effect of all non radiative vertical exchanges of energy. Therefore, an essential parameter is the absorptivity of the atmosphere, denoted $ε_a$. The value of $ε_a$ depends critically on greenhouse gases: increasing concentrations of $CO_2$ and $CH_4$ lead to a more opaque atmosphere with higher values of $ε_a$. First we prove that global existence of solutions of the system holds if and only if $ε_a \in (0, 2)$, and blow up in finite time occurs if $ε_a > 2$. (Note that the physical range of values for $ε_a$ is $(0, 1]$.) Next, we explain the long time dynamics for $ε_a \in (0, 2)$, and we prove that all solutions converge to some equilibrium point. Finally, motivated by the physical context, we study the dependence of the equilibrium points with respect to the involved parameters, and we prove in particular that the surface temperature increases with respect to $ε_a$. This is the key mathematical manifestation of the greenhouse effect.
description: 56 pages, 17 figues
Anticipated backward stochastic differential equations
Creators: name: Peng, Shige
name: Yang, Zhe
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H10, 60H20, 93E03 (Primary)

description: In this paper we discuss new types of differential equations which we call anticipated backward stochastic differential equations (anticipated BSDEs). In these equations the generator includes not only the values of solutions of the present but also the future. We show that these anticipated BSDEs have unique solutions, a comparison theorem for their solutions, and a duality between them and stochastic differential delay equations.
description: Published in at http://dx.doi.org/10.1214/08-AOP423 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
La finestra nell'opera poetica di Vasyl' Stus
Creators: name: Achilli, Alessandro
Publisher: name: Università degli  Studi di Milano
Year: 2015
Subjects: Vasyl' Stus, poesia, letteratura ucraina, universo poetico

description: The image of the window in Vasyl Stus's poetry has not been satisfactorily investigated. A major Ukrainian poet of the twentieth century, Stus shows in his oeuvre a very interesting application of this topos, marked by a striking semantic variety. Though not numerous, his windows cover a wide range of meanings. They can be linked to divine grace, imprisonment, as well as poetic inspiration. This article inquires into the evolution of Stus's lyrical representations of the window from his early poetry up to his masterpieces Čas tvorčosti and Palimpsesty, speculating on possible intertextual links with authors such as Boris Pasternak and Marina Cvetaeva.
description: Altre Modernità, 2015: NUMERO SPECIALE Finestre: sguardi e riflessi, trasparenze e opacità
CULTURAL HERITAGE E MUSEI D’ARTE CONTEMPORANEA: LUOGHI DELLA CULTURA A CONFRONTO
Creators: name: Belluso, Rossella
name: Maggioli, Marco
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2013

description: Cultural Heritage and Museums of Contemporary Art: A Comparison between Cultural Places
The objective of this work is to investigate, from a geographical
perspective, the evolution of the concept of cultural asset, both in relation
to its cultural landscape aspect and in terms of the relationships between
city and art, as shown by the network of contemporary art museums, meant here as a public property and places of culture.

Cultural heritage et les musées d’art contemporain: une comparaison entre quelques lieux de la culture
Le travail se propose d'étudier l'évolution du concept de “bien culturel”,
du point de vue de la géographie. L'enquête considère le “bien culturel”
soit dans la signification de paysage culturel (c'est en effet l'un des aspects du paysage) soit dans sa relation entre la ville et l'art. Le riche réseau de musées d'art contemporain témoigne de leur double nature: ils sont en effet des propriétés publiques et des lieux de la culture à la fois.
description: Semestrale di studi e ricerche di geografia, N. 1 (2013): VALORI NATURALI, DIMENSIONI CULTURALI, PERCORSI DI RICERCA GEOGRAFICA a cura di Emanuele Paratore e Riccardo Morri
A study of the engineering model of lightning strokes and its application to unshielded transmission lines
Creators: name: Abdel-Gawad Mousa, Abdel-Moneim
Publisher: name: University of British Columbia
Year: 2010

description: A model is developed for determining the frequency, the characteristics, and the spatial distribution of the lightning flashes terminating on power lines, both the shielded and the unshielded types. The model takes into consideration the existence of the towers, the sag of the conductors, and the inequality of the striking distances to the different elements of the model (towers, wires, and the ground plane), and assumes the strokes to arrive in the vertical direction. In case of power lines, the striking distances to ground and to the wires are taken equal to the base striking distance, and the striking distance to the towers is taken to be in the range 1.0 to 1.1 times the base striking distance. In case of medium height masts, the striking distance to the mast is taken equal to 1.2 times the base striking distance. The median current to flat ground is taken equal to 24 kA. The model is used in an extensive quantitative analysis of the frequency and the characteristics of the strokes collected by power lines and masts and the spatial distribution of the flashes collected by power lines. The model successfully predicts available observations regarding the effect of height of structure on both the median current of the collected strokes and the protective ratio. The output of the model is used to calculate the outage rate of unshielded steel-structure power lines using a newly developed method. The study covers the voltage classes 230 kV, 500 kV, and 765 kV. A theory is provided explaining the discrepancies between measured and calculated striking distances. A preliminary generalized model for the termination of lightning flashes, both the upward and the downward types, on tall structures is proposed. The termination of lightning flashes at points below the top of a tall structure is explained, and a new method for designing the necessary shielding system is given. Finally, a three-dimensional model for the shielding effect of forests is developed and a quantitative analysis of the effect of height of trees, width of right-of-way, and voltage class of the line is provided.
Pseudoplatystoma fasciatum
Creators: name: Koerber, Stefan
name: Guimarães, Erick Cristofore
name: Brito, Pâmella Silva de
name: Oliveira, Rafael Ferreira de
name: Ottoni, Felipe Polivanov
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Pimelodidae
Pseudoplatystoma
Pseudoplatystoma fasciatum

description: P. fasciatum (Linnaeus, 1766)
evidence-based confirmation for Maranhão from the Munim basin
published in Vieira et al. (2023)
description: Published as part of Koerber, Stefan, Guimarães, Erick Cristofore, Brito, Pâmella Silva de, Oliveira, Rafael Ferreira de & Ottoni, Felipe Polivanov, 2023, CLOFFBR-MA - update 1 - supplement to Checklist of the freshwater fishes of Maranhão, Brazil., pp. 1-13 in Ichthyological Contributions of PecesCriollos 84 on page 7, DOI: 10.5281/zenodo.11558473
Additional file 1 of High relaxivity Gd3+-based organic nanoparticles for efficient magnetic resonance angiography
Creators: name: Liu, Zhuang
name: Zhao, Menglong
name: Wang, Han
name: Fu, Zi
name: Gao, Hongbo
name: Peng, Weijun
name: Ni, Dalong
name: Tang, Wei
name: Gu, Yajia
Publisher: name: figshare
Year: 2022
Subjects: Biophysics
Space Science
Physical Sciences not elsewhere classified
Medicine
Cell Biology
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Cancer

description: Additional file 1: Section S1. In vivo toxicity experiments. Fig. S1. Negative-staining TEM image of the GPT NPs. Fig. S2. Fourier Transform Infrared (FTIR) spectroscopy of the GPT NPs. Fig. S3. Fluorescence spectroscopy of GPT NPs. Fig. S4. The free Gd3+ leakage from GPT NPs and Omniscan. Fig. S5. Blood circulation curve of GPT NPs. Fig. S6. The free Gd3+ leakage from GPT NPs. Fig. S7. T1-weighted MRA images of PANC-1 tumor-bearing mice before and after intravenous GPT NPs and Omniscan. Fig. S8. T1-weighted MRI-signal intensities of tumor site after the intravenous administration of GPT NPs and Omniscan. Fig. S9. Relative viabilities of PDEC cells and PANC-1 cancer cells after incubation with GPT NPs. Fig. S10. Relative viabilities of PDEC cells and PANC-1 cancer cells after incubation with Omniscan. Fig. S11. Time-dependent body-weight changing profiles of BALB/c mice after intravenous administration of GPT NPs. Fig. S12. Liver function indexes of BALB/c mice after intravenous injection of GPT NPs. Fig. S13. Kidney function indexes of BALB/c mice after intravenous injection of GPT NPs. Fig. S14. Hematological white blood cells analyses of BALB/c mice after intravenous injection of GPT NPs. Fig. S15. Hematological platelets analyses of BALB/c mice after intravenous injection of GPT NPs. Fig. S16–S17. Hematological hemoglobin and red blood cells analyses of BALB/c mice after intravenous injection of GPT NPs. Fig. S18. H&E-stained tissues sections from BALB/c mice of BALB/c mice after intravenous injection of GPT NPs.
Classical and quantum mixed-type lemon billiards without stickiness
Creators: name: Lozej, Črt
name: Lukman, Dragan
name: Robnik, Marko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The boundary of the lemon billiards is defined by the intersection of two circles of equal unit radius with the distance $2B$ between their centers, as introduced by Heller and Tomsovic in Phys. Today {\bf 46} 38 (1993). This paper is a continuation of our recent paper on classical and quantum ergodic lemon billiard ($B=0.5$) with strong stickiness effects published in Phys. Rev. E {\bf 103} 012204 (2021). Here we study the classical and quantum lemon billiards, for the cases $B=0.42,\;0.55,\; 0.6$, which are mixed-type billiards without stickiness regions and thus serve as ideal examples of systems with simple divided phase space. The classical phase portraits show the structure of one large chaotic sea with uniform chaoticity (no stickiness regions) surrounding a large regular island with almost no further substructure, being entirely covered by invariant tori. The boundary between the chaotic sea and the regular island is smooth, except for a few points. The classical transport time is estimated to be very short (just a few collisions), therefore the localization of the chaotic eigenstates is rather weak. The quantum states are characterized by the following {\em universal} properties of mixed-type systems without stickiness in the chaotic regions:(i) Using the Poincaré-Husimi (PH) functions the eigenstates are separated to the regular ones and chaotic ones. The regular eigenenergies obey the Poissonian statistics, while the chaotic ones exhibit the Brody distribution with various values of the level repulsion exponent $β$, its value depending on the strength of the localization of the chaotic eigenstates. Consequently, the total spectrum is well described by the Berry-Robnik-Brody (BRB) distribution.
description: 13 pages, 22 figures
"Terra. Una storia intima" di Richard Fortey
Creators: name: Calafiore, Giovanni
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2017

description: Semestrale di studi e ricerche di geografia, N. 2 (2008): Flussi, Reti e Sistemi Informativi Geografici, tra presente e futuro a cura di Cristiano Pesaresi
Additional file 3 of Physicians’ perceptions regarding acute bleeding management: an international mixed qualitative quantitative study
Creators: name: Tadzio R. Roche
name: Wetli, Doreen J.
name: Braun, Julia
name: Kataife, Ezequiel D.
name: Mileo, Federico G.
name: Spahn, Donat R.
name: Tscholl, David W.
name: Sadiq Said
Publisher: name: figshare
Year: 2021
Subjects: Science Policy

description: Additional file 3. Graphical representation of the field notes answers to the question: “What do you find easy in coagulation management?”.
Saxatilia brasiliensis
Creators: name: Koerber, Stefan
name: Guimarães, Erick Cristofore
name: Brito, Pâmella Silva de
name: Oliveira, Rafael Ferreira de
name: Ottoni, Felipe Polivanov
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Sciaenidae
Saxatilia
Saxatilia brasiliensis

description: S. brasiliensis (Bloch, 1792)
comb.nov. from Crenicichla
published in Varella et al. (2023)
description: Published as part of Koerber, Stefan, Guimarães, Erick Cristofore, Brito, Pâmella Silva de, Oliveira, Rafael Ferreira de & Ottoni, Felipe Polivanov, 2023, CLOFFBR-MA - update 1 - supplement to Checklist of the freshwater fishes of Maranhão, Brazil., pp. 1-13 in Ichthyological Contributions of PecesCriollos 84 on page 7, DOI: 10.5281/zenodo.11558473
Haliplus (Paraliaphlus) leopardus Roberts 1913
Creators: name: Majka, Christopher
name: van Vondel, Bernhard
name: Webster, Reginald
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Haliplidae
Haliplus
Haliplus leopardus

description: Haliplus (Paraliaphlus) leopardus Roberts, 1913 NOVA SCOTIA, Halifax Co.: Lake Egmont, 29.IX.1989, 15.VIII.1990, 4.IX.1990, B. Wright, (5, NSMC); Lake Egmont, 30.IV.1990, B. Wright, weedy shallows near bridge, (12, NSMC). Haliplus leopardus is newly recorded in Nova Scotia (Fig. 2). It was reported from New Brunswick by Vondel (2005). In Atlantic Canada there are records from the margins of shallow lakes.
description: Published as part of Majka, Christopher, van Vondel, Bernhard & Webster, Reginald, 2009, The Haliplidae (Coleoptera) of Atlantic Canada: new records, distribution, and faunal composition, pp. 249-266 in ZooKeys 22 (22) on page 256, DOI: 10.3897/zookeys.22.91, http://zenodo.org/record/576538
description: {"references": ["Roberts CH (1913) Critical notes on the species of Haliplidae of America north of Mexico with descriptions of new species. Journal of the New York Entomological Society 21: 91 - 123.", "Vondel BJ van (2005) Haliplidae. In: Nilsson AN, Vondel BJ, van (Eds) Amphizoidae, Aspidytidae, Haliplidae, Noteridae and Paelobiidae (Coleoptera, Adephaga). World Catalogue of Insects 7: 1 - 171."]}
title: ปัจจัยในการบริหารงานของผู้ประกอบการธุรกิจด้านสื่อโฆษณาในยุคดิจิทัล
Creators: name: ทักษยา วัชรสารทรัพย์
Publisher: name: งานวารสาร มหาวิทยาลัยนครพนม
publisherIdentifierScheme: ROR
Year: 2024
Subjects: ธุรกิจด้านสื่อโฆษณา
การบริหารงานธุรกิจ
ผู้ประกอบการ
ยุคดิจิทัล
คุณลักษณะของผู้ประกอบการ

description: วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยนครพนม, 14, 2, 256-268
Scattered Emission from A Relativistic Outflow and Its Application to Gamma-Ray Bursts
Creators: name: Shen, R. -F.
name: Duran, R. Barniol
name: Kumar, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate a scenario of photons scattering by electrons within a relativistic outflow. The outflow is composed of discrete shells with different speeds. One shell emits radiation for a short duration. Some of this radiation is scattered by the shell(s) behind. We calculate in a simple two-shell model the observed scattered flux density as a function of the observed primary flux density, the normalized arrival time delay between the two emission components, the Lorentz factor ratio of the two shells and the scattering shell's optical depth. Thomson scattering in a cold shell and inverse Compton scattering in a hot shell are both considered. The results of our calculations are applied to the Gamma-Ray Bursts and the afterglows. We find that the scattered flux from a cold slower shell is small and likely to be detected only for those bursts with very weak afterglows. A hot scattering shell could give rise to a scattered emission as bright as the X-ray shallow decay component detected in many bursts, on a condition that the isotropically equivalent total energy carried by the hot electrons is large, $\sim 10^{52-56}$ erg. The scattered emission from a faster shell could appear as a late short $γ$-ray/MeV flash or become part of the prompt emission depending on the delay of the ejection of the shell.
description: 13 pages, 3 figures, MNRAS in press; a short intuitive estimation is added before detailed calculations; references updated
Cosmological Constraints from Hubble Parameter on f(R) Cosmologies
Creators: name: Carvalho, F. C.
name: Santos, E. M.
name: Alcaniz, J. S.
name: Santos, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Modified $f(R)$ gravity in the Palatini approach has been presently applied to Cosmology as a realistic alternative to dark energy. In this concern, a number of authors have searched for observational constraints on several $f(R)$ gravity functional forms using mainly data of type Ia supenovae (SNe Ia), Cosmic Microwave Background ({\rm CMB}) radiation and Large Scale Structure ({\rm LSS}). In this paper, by considering a homogeneous and isotropic flat universe, we use determinations of the Hubble function $H(z)$, which are based on differential age method, to place bounds on the free parameters of the $f(R) = R - β/R^{n}$ functional form. We also combine the $H(z)$ data with constraints from Baryon Acoustic Oscillations ({\rm BAO}) and {\rm CMB} measurements, obtaining ranges of values for $n$ and $β$ in agreement with other independent analyses. We find that, for some intervals of $n$ and $β$, models based on $f(R) = R - β/R^{n}$ gravity in the Palatini approach, unlike the metric formalism, can produce the sequence of radiation-dominated, matter-dominated, and accelerating periods without need of dark energy.
description: 11 pages, 7 figures, 1 Table, LaTeX
Brachistochrone of off-centered cylinders
Creators: name: Sambath, Krishnaraj
name: Nagarajan, Vidhya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We consider the problem of finding paths of shortest transit time between two points (popularly known as Brachistochrone) for cylinders with off-centered center of mass, rolling down without slip, subject solely to the force of gravity. This problem is set up using principles of classical rigid body dynamics and the desired path function is solved for numerically using the method of discrete calculus of variations. We discover a distinct array of brachistochrone trajectories for off-centered cylinders, demonstrate a critical dependence of such paths on the initial location and orientation of cylinders' centers of mass and bring new insights into the family of brachistochrone problems and solutions.
description: Preprint version (in arXiv) identical in content, only differs in format, to accepted version (in EJP)
Valigie di cartone e fughe di cervelli
Creators: name: Cristaldi, Flavia
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2017

description: Migrations have become one of the principal social phenomena of
the twenty-first century; they can distinguish entire communities and territories. Many scientific branches contribute to the analysis and understanding of migratory processes, each according to its specific particularity.
In the course of a lively and stimulating day long debate historians,
anthropologists, linguists, anglicists, geographers, musicologists,
cinema experts and journalists were the protagonists accompanying
the various presentations through segments of diversely shared migratory
life.

Les migrations sont devenues un des principaux phénomènes sociaux
du XXIe siècle au point de caractériser des communautés entières
et des territoires. Les disciplines qui peuvent contribuer à l’analyse et à
la compréhension des processus migratoires sont nombreuses, chacune
avec leurs spécificités et particularités: des chercheurs en histoire,
anthropologie, géographie, musique, cinéma, des anglicistes et des
journalistes, protagonistes d’une riche et stimulante confrontation, se
succèdent tout au long de la journée pour évoquer, selon leurs différents
points de vue, de longs pans de la vie des migrants.
description: Semestrale di studi e ricerche di geografia, N. 1 (2008): Valigie di cartone e fughe di cervelli a cura di Flavia Cristaldi e Riccardo Morri
Research on the relationships among participation motivation, participation attitude and revisit intention in Thai golf tourism: a study based on mediation model
Creators: name: Sun, Ke
Publisher: name: Silpakorn University Research Innovation and Creativity Administration Office
Year: 2021
Subjects: Golf tourism, revisit intentions, participation motivation, participation attitude, SEM, bootstrap

description: Humanities, Arts and Social Sciences Studies, 21, 3, 491-504
Checking the reliability of equivalent width R23 for estimating metallicities of galaxies
Creators: name: Liang, Y. C.
name: Hammer, F.
name: Yin, S. Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We verify whether the O/H abundances of galaxies can be derived from the equivalent width (EW) R23 instead of the extinction-corrected flux R23, and eventually propose a method of improving the reliability of this empirical method, which is often used for the non-flux calibrated spectra of galaxies. We select 37,173 star-forming galaxies from the SDSS-DR2, which offers a wide range of properties to test the EW method. The EW-R23 method brings with it a significant bias: for the bulk of SDSS galaxies, it may affect the determination of log(O/H) by factors ranging from -0.2 to 0.1 dex and for some galaxies by factors ranging from -0.5 to 0.2 dex. We characterize this discrepancy (or bias) by alpha = (I_[OII]/I_Hbeta)/(EW_[OII]/EW_Hbeta), which is virtually independent of dust extinction, while tightly correlating with Dn(4000), although at a lower significance, with (g-r) colors. The EW-R23 method cannot be used as a proxy for the extinction-corrected flux R23 method. From analytical third-order polynomial fits of alpha versus (g-r) colors, we have been able to correct the EW-R23 method. With this additional and easy correction, the EW-R23 method provides O/H abundance values similar to those derived from the extinction-corrected flux R23 method with an accuracy of ~0.1 dex for >92% of the SDSS galaxies.
description: 8 pages, 7 figures, A&A in press. With some corrections suggested by the language editor
Apertura dei lavori
Creators: name: Palagiano, Cosimo
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2017

description: Semestrale di studi e ricerche di geografia, N. 1 (2008): Valigie di cartone e fughe di cervelli a cura di Flavia Cristaldi e Riccardo Morri
Additional file 1 of Family income and health in Canada: a longitudinal study of stability and change
Creators: name: Vanzella-Yang, Adam
name: Veenstra, Gerry
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1: Supplementary Table S1. Year-stratified analysis of family income on fair/poor self-rated health in 2012. Supplementary Table S2. Year-stratified analysis of family income on the presence of a longstanding illness or health problem in 2012