cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IC 751: a new changing-look AGN discovered by NuSTAR
Creators: name: Ricci, C.
name: Bauer, F. E.
name: Arevalo, P.
name: Boggs, S.
name: Brandt, W. N.
name: Christensen, F. E.
name: Craig, W. W.
name: Gandhi, P.
name: Hailey, C. J.
name: Harrison, F. A.
name: Koss, M.
name: Markwardt, C. B.
name: Stern, D.
name: Treister, E.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of five NuSTAR observations of the type 2 active galactic nucleus (AGN) in IC 751, three of which were performed simultaneously with XMM-Newton or Swift/XRT. We find that the nuclear X-ray source underwent a clear transition from a Compton-thick ($N_{\rm\,H}\simeq 2\times 10^{24}\rm\,cm^{-2}$) to a Compton-thin ($N_{\rm\,H}\simeq 4\times 10^{23}\rm\,cm^{-2}$) state on timescales of $\lesssim 3$ months, which makes IC 751 the first changing-look AGN discovered by NuSTAR. Changes of the line-of-sight column density at a $\sim2σ$ level are also found on a time-scale of $\sim 48$ hours ($ΔN_{\rm\,H}\sim 10^{23}\rm\,cm^{-2}$). From the lack of spectral variability on timescales of $\sim 100$ ks we infer that the varying absorber is located beyond the emission-weighted average radius of the broad-line region, and could therefore be related either to the external part of the broad-line region or a clumpy molecular torus. By adopting a physical torus X-ray spectral model, we are able to disentangle the column density of the non-varying absorber ($N_{\rm\,H}\sim 3.8\times 10^{23}\rm\,cm^{-2}$) from that of the varying clouds [$N_{\rm\,H}\sim(1-150)\times10^{22}\rm\,cm^{-2}$], and to constrain that of the material responsible for the reprocessed X-ray radiation ($N_{\rm\,H} \sim 6 \times 10^{24}\rm\,cm^{-2}$). We find evidence of significant intrinsic X-ray variability, with the flux varying by a factor of five on timescales of a few months in the 2-10 and 10-50 keV band.
description: Accepted for publication in ApJ, 11 pages, 6 figures
Prevención primaria y secundaria del maltrato infantil: Un enfoque desde la disciplina de trabajo social
Creators: name: Correa Gutiérrez, Alejandrina
Publisher: name: Universidad de Cartagena
Year: 2002
Subjects: Síndrome de maltrato infantil
Trabajo social con niños

description: Tesis (Trabajadora Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social, 2002
description: Indicio de la intervención desde la disciplina de trabajo social a nivel primario y secundario del maltrato infantil, facilitando la reflexión sobre la acción para replantear la misma, a partir de los hallazgos evidenciados en el proceso preventivo.
On the ergodicity of perpendicular cosmic ray transport
Creators: name: Tautz, R. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Aims. The random walk of energetic charged particles in turbulent magnetic fields is investigated. Special focus is placed on transport across the mean magnetic field, which had been found to be subdiffusive on many occasions. Therefore, a characterization using the concept of ergodicity is attempted by noting the connection to the time evolution of the mean-square displacement. Methods. Based on the test-particle approach, a numerical Monte-Carlo simulation code is used to integrate the equation of motion for particles that are scattered by magnetic turbulence. The turbulent fields are generated by superposing plane waves with a Kolmogorov-type power spectrum. The individual particle trajectories are then used to calculate a variety of statistical quantities. Results. The simulation results clearly demonstrate how the heterogeneity of the particle ensemble causes the system to be weakly non-ergodic. In addition, it is shown how the step length distribution varies with the particle energy. In conclusion, cross-field transport is non-Gaussian but still almost diffusive.
description: 7 pages, 8 figures, accepted for publication in Astronomy & Astrophysics
Abenteuer und Ewigkeit. Zur Konkurrenz der Zeitmodelle in Heinrichs von Neustadt ›Apollonius von Tyrland‹
Creators: name: Braun, Lea
Publisher: name: Beiträge zur mediävistischen Erzählforschung
Year: 2020

description: Der Aufsatz fasst, ausgehend von Harald Haferlands Überlegungen zu modularem Erzählen, die Zeitkonzeptionen vormodernen Erzählens als nicht lediglich sekundäre Ausformungen des Plots, sondern vielmehr als grundlegenden Teil narrativer Modulbildungen. Am Beispiel des ›Apollonius von Tyrland‹ Heinrichs von Neustadt wird herausgearbeitet, wie verschiedene Zeitkonzeptionen das Erzählen unterschiedlicher Romanpassagen prägen und konzeptuell überschreiben. Diese Zeitkonzeptionen sind, wie von Haferland beschrieben, dem Erzählen kulturell vorgängig und greifen auf temporale Modelle wie âventiure, Genealogie oder Heilszeit zurück.
description: Beiträge zur mediävistischen Erzählforschung, Bd. 3 (2020)
Plot und komplexe Zeitstrukturen. Eine exemplarische Untersuchung der ›Alexius‹-Legende aus ›Der Heiligen Leben‹
Creators: name: Chlench-Priber, Kathrin
Publisher: name: Beiträge zur mediävistischen Erzählforschung
Year: 2020

description: Christliche mittelalterliche Legenden sind in der Regel final motiviert, da sie die Heiligkeit ihrer Protagonisten nicht kausallogisch herleiten, sondern voraussetzen. Damit einhergehend setzen sie weiter neben einem linearen Zeitkonzept, in dem sich die Weltgeschichte vollzieht und in das das biographisch-geschichtliche Beispiel des Heiligenlebens wie die Lebenszeit der Rezipierenden eingebunden sind, ein Konzept ewiger, göttlicher Heilszeit voraus. Der vorliegende Beitrag untersucht exemplarisch am Beispiel der ›Alexius‹-Legende aus ›Der Heiligen Leben‹, wie sich Plot und Zeitstrukturen in der Legende zueinander verhalten und wie beide zur narrativen Stabilisierung von Heilsgewissheit und Darstellbarkeit von Heiligkeit beitragen. In die Analyse aus einer gattungsspezifischen Perspektive werden Überlegungen zu den von Harald Haferland entwickelten Thesen zum modularen Erzählen einbezogen.
description: Beiträge zur mediävistischen Erzählforschung, Bd. 3 (2020)
Lectures on Matrix Field Theory I
Creators: name: Ydri, Badis
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The subject of matrix field theory involves matrix models, noncommutative geometry, fuzzy physics and noncommutative field theory and their interplay. In these lectures, a lot of emphasis is placed on the matrix formulation of noncommutative and fuzzy spaces, and on the non-perturbative treatment of the corresponding field theories. In particular, the phase structure of noncommutative $ϕ^4$ theory is treated in great detail, and an introduction to noncommutative gauge theory is given.
description: 293 pages, 10 figures. Several small parts of these lectures have already appeared in various preprints found on the arXiv. I have felt no need to reword my own expressions if I thought they conveyed the physics properly
Die Destruktion der Wunderzeit in Hieronymus Rauschers ›Papistischen Lügen‹ (1562)
Creators: name: Holtzhauer, Sebastian
Publisher: name: Beiträge zur mediävistischen Erzählforschung
Year: 2020

description: An repräsentativen Fallbeispielen aus den ›Papistischen Lügen‹ wird aufgezeigt, wie der protestantische Theologe Hieronymus Rauscher die Zeitvorstellungen (spät)mittelalterlicher Legenden- und Mirakelerzählungen in polemisch-rationaler Manier kommentiert. Dies geschieht ausschließlich in den Paratexten (Randglossen und ›Erinnerungen‹) seines Werks, wo Rauscher an einer linearen ›Handlungszeit‹ ausgerichtete Maßstäbe von Plausibilität und Wahrscheinlichkeit an die erzählte Zeit der von ihm ausgewählten Wunder ansetzt. Durch ihre eigentümliche Kritik an der ›Wunderzeit‹ distanzieren sich die weithin rezipierten ›Papistischen Lügen‹ nicht nur vom Wunderglauben der Katholiken, sondern zugleich auch von einer vormodernen Erzählweise.
description: Beiträge zur mediävistischen Erzählforschung, Bd. 3 (2020)
Viens à la fête, la table est prête
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2023

Abstract
Equipartition and Cosmic Ray Energy Densities in Central Molecular Zones of Starbursts
Creators: name: Yoast-Hull, Tova M.
name: Gallagher, John S.
name: Zweibel, Ellen G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The energy densities in magnetic fields and cosmic rays (CRs) in galaxies are often assumed to be in equipartition, allowing for an indirect estimate of the magnetic field strength from the observed radio synchrotron spectrum. However, both primary and secondary CRs contribute to the synchrotron spectrum, and the CR electrons also loose energy via bremsstrahlung and inverse Compton. While classical equipartition formulae avoid these intricacies, there have been recent revisions that account for the extreme conditions in starbursts. Yet, the application of the equipartition formula to starburst environments also presupposes that timescales are long enough to reach equilibrium. Here, we test equipartition in the central molecular zones (CMZs) of nearby starburst galaxies by modeling the observed gamma-ray spectra, which provide a direct measure of the CR energy density, and the radio spectra, which provide a probe of the magnetic field strength. We find that in starbursts, the magnetic field energy density is significantly larger than the CR energy density, demonstrating that the equipartition argument is frequently invalid for CMZs.
description: 5 pages, 2 figures, 2 tables, accepted for publication in MNRAS Letters
Geum molle Visiani & Pancic 1862
Creators: name: Clementi, Moreno
name: Vukojičić, Snežana
name: Lakušić, Dmitar
name: Kuzmanović, Nevena
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Rosales
Rosaceae
Geum
Geum molle

description: Geum molle Visiani & Pančić (1862: 429)
 Type (lectotype designated here):— SERBIA. E seminibus originatibus M. Javor in horto culta, Maj. Jun. [1]860, J. Pančić s.n. (PAD-0022698!) (Fig. 1B).
 Additional specimens examined:— SERBIA. In apricis M. Javor S[erbia] merid[ionalis], June [1]861, J. Pančić, (BEOU-4547!); s.l., s.d., J. Pančić s.n. (PAD-H0022701!); Culta e seminib[us] de M. Javor S[erbia] merid[ionalis], flor[ens] Maj. fruct[iferum] Juni, s.d., J. Pančić s.n. (BEOU 4544!)
 Note:—The specimen in Padova, selected here as lectotype, and the one in Belgrade are, as far as we know, the only ones with information on locality and collection date of that are completely compatible with the information provided in the protologue. The specimen selected here as lectotype was preferred since it bears the provisional name “ Geum serbicum spec. nov. ”, the same name that appears in Visiani’s manuscript for Visiani & Pančić (1862). Moreover, Pančić’ s remark on the label “Species certissime a vicino Geum urbano diversa” also appears in the protologue. Finally, the illustration in the protologue was certainly based on it (Fig. 1A). The additional specimen from PAD (PAD-H0022701) is also probably part of the original material: in a letter to Visiani dating 1857, Pančić wrote that he was sending him a flowering specimen form M. Javor. PAD-H0022701 is the only flowering specimen, collected by Pančić, available in Padova, besides the lectotype. The name is still generally accepted (Euro+Med 2014).
description: Published as part of Clementi, Moreno, Vukojičić, Snežana, Lakušić, Dmitar & Kuzmanović, Nevena, 2015, names published by Roberto de Visiani and Josif Pančić in Plantae Serbicae Rariores aut Novae-Decas I, pp. 121-134 in Phytotaxa 202 (2) on page 122, DOI: 10.11646/phytotaxa.202.2.4, http://zenodo.org/record/13641291
Are all classical superintegrable systems in two-dimensional space linearizable?
Creators: name: Gubbiotti, G.
name: Nucci, M. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Several examples of classical superintegrable systems in two-dimensional spac are shown to possess hidden symmetries leading to their linearization. They are those determined 50 years ago in [Phys. Lett. 13, 354 (1965)], and the more recent Tremblay-Turbiner-Winternitz system [J. Phys. A: Math. Theor. 42, 242001 (2009)]. We conjecture that all classical superintegrable systems in two-dimensional space have hidden symmetries that make them linearizable.
description: 17 pages
El conjunto suma en grupos diedricos
Creators: name: Teran Batista, Xavier Antonio
Publisher: name: Universidad de Cartagena
Year: 2011
Subjects: Grupos abelianos
Teoría de los Grupos

description: Tesis (Matemático).--Universidad de Cartagena. Facultad de Ciencias Exactas y Naturales. Programa de Matemáticas, 2011
description: El presente estudio tiene por objeto realizar un estudio detallado sobre la teoría de grupos diedricos.
Voltage controlled core reversal of fixed magnetic skyrmions without a magnetic field
Creators: name: Bhattacharya, Dhritiman
name: Al-Rashid, Md Mamun
name: Atulasimha, Jayasimha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using micromagnetic simulations we demonstrate core reversal of a fixed magnetic skyrmion by modulating the perpendicular magnetic anisotropy of a nanomagnet with an electric field. We can switch reversibly between two skyrmion states and two ferromagnetic states, i.e. skyrmion states with the magnetization of the core pointing down/up and periphery pointing up/down, and ferromagnetic states with magnetization pointing up/down, by sequential increase and decrease of the perpendicular magnetic anisotropy. The switching between these states is explained by the fact that the spin texture corresponding to each of these stable states minimizes the sum of the magnetic anisotropy, demagnetization, Dzyaloshinskii-Moriya interaction (DMI) and exchange energies. This could lead to the possibility of energy efficient nanomagnetic memory and logic devices implemented with fixed skyrmions without using a magnetic field and without moving skyrmions with a current.
Dianthus papillosus Visiani & Pancic 1862
Creators: name: Clementi, Moreno
name: Vukojičić, Snežana
name: Lakušić, Dmitar
name: Kuzmanović, Nevena
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Dianthus
Dianthus papillosus

description: Dianthus papillosus Visiani & Pančić (1862: 436).
 Type (lectotype designated here):— SERBIA. In rupestrib[us] calcareis ad Mokra gora Serb[ia] Occid[entalis], August [1]861, J. Pančić s.n. (PAD-H0022789!) (Fig. 4)
 Additional specimens examined:—[SERBIA].s.l.,s.d., s.c. s.n. (PAD-H0016481!); SERBIA.Collib[us]serpentinaceis prope Raška C. Čačkensi, July, J. Pančić s.n. (BEOU 1514!).
 Note:—The specimen selected here as lectotype fully corresponds with the protologue. The label, in Pančić’ s handwriting, bears the unpublished name “ Dianthus leucozonus ”, which appears also in Visiani’s original manuscript for Visiani & Pančić 1862, as a provisional name. This specimen was clearly used to make the illustration in the protologue. The additional specimen in PAD (PAD-H0016481) bears Reuter’s remark (“Me parait en effet distincte des nombreuses especes du groupe des sylvestris par les singulières papilles qui sont sur les petales et sur les feuilles!”, i.e. “it seems to me distinct from the many species of the sylvestris group by the particular papillae that are all over the petals and leaves”) and is therefore part of the original material. This taxon is generally treated as a synonym of Dianthus sylvestris Wulfen in Jacquin (1786: 237).
description: Published as part of Clementi, Moreno, Vukojičić, Snežana, Lakušić, Dmitar & Kuzmanović, Nevena, 2015, names published by Roberto de Visiani and Josif Pančić in Plantae Serbicae Rariores aut Novae-Decas I, pp. 121-134 in Phytotaxa 202 (2) on page 126, DOI: 10.11646/phytotaxa.202.2.4, http://zenodo.org/record/13641291
Navigating the Landscape of Transactions : Understanding Firms' Transactional Governance Structures in Six Latin American Countries
Creators: name: Francis, David C.
Publisher: name: Zenodo
Year: 2019

description: This note summarizes findings from a new paper, which lays out a methodology to determine the types of mechanisms, be they the legal system, civil organizations, or shared business interest, that firms use when entering into agreements with their suppliers and customers. Specially, the note summarizes the data exploration technique (known as Latent Class Analysis) used in the paper and shows some basic results in terms of the attributes of each class. Four basic classes are used for dealing with suppliers (pure bilateralism, bilateralism with private support, bilateralism with legal support, and strong comprehensive) and with customers (pure bilateralism, bilateralism with private support, bilateralism with weak support, and weak comprehensive). Lastly, some basic correlations between the likelihood of class membership and firm-level characteristics are shown.
Creation and Evaluation of Software Teams - A Social Approach
Creators: name: Torres, Surayne
name: Pinero, Yadenis
name: Pinero, Pedro
name: Capretz, Luiz Fernando
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: This work discusses an important issue in the area of human resource management by proposing a novel model for creation and evaluation of software teams. The model consists of several assessments, including a technical test, a quality of life test and a psychological-sociological test. Since the technical test requires particular organizational specifications and cannot be examined without reference to a specific company, only the sociological test and the quality of life tests are extensively discussed in this work. Two strategies are discussed for assigning roles in a project. Initially, six software projects were selected, and after extensive analysis of the projects, two projects were chosen and correctives actions were applied. An empirical evaluation was also conducted to assess the model effectiveness. The experimental results demonstrate that the application of the model improved the productivity of project teams.
Diseño y elaboración de mezclas de concreto celular con cemento pórtland tipo I
Creators: name: Barrios Del Valle, Mileth
name: Villadiego Beltran, Ronal
Publisher: name: Universidad de Cartagena
Year: 2003
Subjects: Hormigón

description: Tesis (Ingeniero Civil) -- Universidad de Cartagena. Facultad de Ciencias Económicas Ingeniería. Facultad de Ingeniería Civil. 2003.
description: El presente estudio tiene por objeto preparar los diseños de mezcla de concreto celular con cemento portland tipo I y materiales aligerantes.
Viola grisebachiana Vis.
Creators: name: Clementi, Moreno
name: Vukojičić, Snežana
name: Lakušić, Dmitar
name: Kuzmanović, Nevena
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Violaceae
Viola
Viola grisebachiana

description: Viola grisebachiana Vis. in Visiani & Pančić (1862: 433)
 Type (lectotype designated by Tomović et al. 2013):— SERBIA. Aleksinac district: Rtanj Mountain, July 1847, J. Pančić s.n. (BEOU 15052!).
 Note:—The original spelling in the protologue (“ grisebachana ”) must be corrected in accordance with Art. 60.12 of the ICN (McNeill et al. 2012).
description: Published as part of Clementi, Moreno, Vukojičić, Snežana, Lakušić, Dmitar & Kuzmanović, Nevena, 2015, names published by Roberto de Visiani and Josif Pančić in Plantae Serbicae Rariores aut Novae-Decas I, pp. 121-134 in Phytotaxa 202 (2) on page 126, DOI: 10.11646/phytotaxa.202.2.4, http://zenodo.org/record/13641291
Sigma Models with Negative Curvature
Creators: name: Alonso, Rodrigo
name: Jenkins, Elizabeth E.
name: Manohar, Aneesh V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct Higgs Effective Field Theory (HEFT) based on the scalar manifold H^n, which is a hyperbolic space of constant negative curvature. The Lagrangian has a non-compact O(n,1) global symmetry group, but it gives a unitary theory as long as only a compact subgroup of the global symmetry is gauged. Whether the HEFT manifold has positive or negative curvature can be tested by measuring the S-parameter, and the cross sections for longitudinal gauge boson and Higgs boson scattering, since the curvature (including its sign) determines deviations from Standard Model values.
De las asociaciones profesionales
Creators: name: Iglesias Gamarra, Glenis
Publisher: name: Universidad de Cartagena
Year: 1974
Subjects: Sindicalismo

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1974
description: Intereses de los obreros y de la sociedad hasta la independencia sindical, donde los trabajadores defienden sus intereses y transformar la sociedad media un abismo, antes se reducía la vida al cuadro familiar y ya hoy se ha despenalizado todo.
Der Glaube an den Sohn Gottes aus der Sicht eines gekreuzigten Volkes
Creators: name: Sobrino, Jon
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 18 Nr. 3 (1982): Concilium: Internationale Zeitschrift für Theologie, Band 18, Heft 3
Campodea (Campodea) wallacei Bagnall 1918
Creators: name: Sendra, Alberto
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplura
Campodeidae
Campodea
Campodea wallacei

description: Campodea (Campodea) wallacei Bagnall, 1918
Fig. 52
Campodea (Campodea) simulatrix Wygodzinsky, 1941: 68, fig. 2.
Campodea (Campodea) wygodzinskii Rusek, 1966: 364, figs 71–85. Syn. nov.
Campodea (Campodea) wallacei Bagnall, 1918a: 158.
Diagnosis (Bagnall 1918a; Bareth & Condé 1985; Bareth 2006)
Body length 3.0–4.0 mm; epicuticle without microdenticles; long, thin, smooth clothing setae; antennae with 24–30 (31–32 in specimens found in caves); large sensillum of third antennomere in dorsal position; long, thin barbed notal macrosetae; long, thin barbed notal marginal setae; 1+1 la, 1+1 lp macrosetae on V–VII urotergites, 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment; cerci covered in long macrosetae and a few clothing setae; spermatozoid fascicles 45–50 μm diameter and 10–15 μm thick, spiral filament with 4–5 spirals, 560–600 μm long and 3–4 μm elliptic shaped in widest section.
Taxonomic notes
We propose C. (C.) wygodzinskii Rusek, 1966 as a synonym of C. (C.) wallacei Bagnall, 1966, based on the number of the barbs present in the stylus setae, which are very variable intraspecifically and therefore cannot be used to separate this species. The same is valid for C. (C.) simulatrix Wygodzinsky, 1941, a synonym already proposed by Bareth (2006) due to the poor support to separate this species from C. (C.) wallacei based on the reduction of barbs on the notal macrosetae (Fig. 52).
Habitat and distribution
Soil-dwelling species, which is also found in cave habitats (Condé 1956a, 1962; Sendra et al. 2013). It is distributed in England (Bagnall 1918a), southern Scandinavian Peninsula (Agrell 1944), the Maritime Alps (Bareth & Condé 1985; Ramellini 2000), France (Condé 1947d, 1947h, 1950a; Pagés 1951), Germany (Christian 2003) and around the Dinaric Mountains (Blesić 1998a, 1998 b, 2000b, 2001).
description: Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on pages 60-62, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/4316883
Análisis de las nociones de muerte y soledad en el poemario pistoleros / putas y dementes de Efraím Medina Reyes
Creators: name: Alcendra Silva, Jaime Luis
name: Paternina Caballero, Heinner
Publisher: name: Universidad de Cartagena
Year: 2014
Subjects: Poesía - Crítica literaria

description: Tesis (Profesional en Lingüística y Literatura) -- Universidad de Cartagena. Facultad de ciencias humanas. Programa de lingüística y literatura, 2014
description: La presente tesis de grado tiene como objetivo principal realizar una aproximación hermenéutica al poemario Pistoleros / Putas y dementes de Efraím Medina Reyes. El objetivo primordial será intentar esclarecer la forma en que se constituyen al interior del poemario las categorías de muerte y soledad.
Narrowband Gyrosynchrotron Bursts: Probing Electron Acceleration in Solar Flares
Creators: name: Fleishman, Gregory D.
name: Nita, Gelu M.
name: Kontar, Eduard P.
name: Gary, Dale E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recently, in a few case studies we demonstrated that gyrosynchrotron microwave emission can be detected directly from the acceleration region when the trapped electron component is insignificant. For the statistical study reported here, we have identified events with steep (narrowband) microwave spectra that do not show a significant trapped component and at the same time show evidence of source uniformity, which simplifies the data analysis greatly. Initially, we identified a subset of more than 20 radio bursts with such narrow spectra, having low- and high-frequency spectral indices larger than 3 in absolute value. A steep low-frequency spectrum implies that the emission is nonthermal (for optically-thick thermal emission, the spectral index cannot be steeper than 2), and the source is reasonably dense and uniform. A steep high-frequency spectrum implies that no significant electron trapping occurs; otherwise a progressive spectral flattening would be observed. Roughly half of these radio bursts have RHESSI data, which allows for detailed, joint diagnostics of the source parameters and evolution. Based on an analysis of radio-to-X-ray spatial relationships, timing, and spectral fits, we conclude that the microwave emission in these narrowband bursts originates directly from the acceleration regions, which have relatively strong magnetic field, high density, and low temperature. In contrast, the thermal X-ray emission comes from a distinct loop with smaller magnetic field, lower density, but higher temperature. Therefore, these flares occurred likely due to interaction between two (or more) magnetic loops.
description: 15 pages, 10 figures, 3 tables. ApJ in press
Comerciantes, puerto y crisis en Mompox 1880-1895
Creators: name: Caro Machado, Kevin José
Publisher: name: Universidad de Cartagena
Year: 2020
Subjects: Comerciantes - Mompox (Bolívar, Colombia)
Crisis económica,1880 - 1895 - Mompox (Bolívar, Colombia)
Historia económica - Mompox (Bolívar, Colombia)

description: Tesis (Historiador) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Historia, 2020
description: El artículo se divide en tres partes: en la primera, se hace un contexto histórico del otrora puerto fluvial momposino en el que se resaltan sus bondades, entre ellas, su posición geoestratégica dentro del gran triangulo comercial colonial Cartagena-Mompox-Santafe, el cual le permitió alcanzar su prosperidad económica desde el siglo XVI hasta mediados del XIX. En la segunda, se determinan algunos de los eventos que propiciaron su decadencia en el transcurso del siglo XIX. Por último, hacemos un recuento de las medidas tomadas por los momposinos luego del desvío del río Magdalena (brazo de Mompox) ocurrido durante la década de 1860.
What do climate change and the English Civil War have in common? Levellers!
Creators: name: Haberman, Robin E.
Publisher: name: Zenodo
Year: 2015
Subjects: Capitalism, Climate Change

description: We have a unique perspective now about how climate change can unfold in the years to come. During a recent interview, former President Jimmy Carter pointed out that “the U.S. is an oligarchy with unlimited political bribery.” This is also true for many western nations and the foreign governments they prop up around the world. The situation is similar to England in the 1640s, when large groups of royalists were in control. The royalists were used to getting their own way on all matters; no matter how outlandish, extravagant or silly their demands, they were in charge. We are at the same point: members of our own ruling class—with outlandish, extravagant, and silly actions and views—sometimes even dream of how to profit from climate change. This is one reason why sustainable development projects are running into trouble around the world. (For more on how some plan to capitalize on climate change, read
 This Changes Everything: Capitalism vs. the Climate by Naomi Klein)
The JCMT Gould Belt Survey: Dense Core Clusters in Orion B
Creators: name: Kirk, H.
name: Johnstone, D.
name: Di Francesco, J.
name: Lane, J.
name: Buckle, J.
name: Berry, D. S.
name: Broekhoven-Fiene, H.
name: Currie, M. J.
name: Fich, M.
name: Hatchell, J.
name: Jenness, T.
name: Mottram, J. C.
name: Nutter, D.
name: Pattle, K.
name: Pineda, J. E.
name: Quinn, C.
name: Salji, C.
name: Tisi, S.
name: Hogerheijde, M. R.
name: Ward-Thompson, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The JCMT Gould Belt Legacy Survey obtained SCUBA-2 observations of dense cores within three sub-regions of Orion B: LDN 1622, NGC 2023/2024, and NGC 2068/2071, all of which contain clusters of cores. We present an analysis of the clustering properties of these cores, including the two-point correlation function and Cartwright's Q parameter. We identify individual clusters of dense cores across all three regions using a minimal spanning tree technique, and find that in each cluster, the most massive cores tend to be centrally located. We also apply the independent M-Sigma technique and find a strong correlation between core mass and the local surface density of cores. These two lines of evidence jointly suggest that some amount of mass segregation in clusters has happened already at the dense core stage.
description: Accepted for publication in ApJ. 22 pages, 11 figures
Pore-scale simulations of drainage in granular materials: finite size effects and the representative elementary volume
Creators: name: Yuan, Chao
name: Chareyre, Bruno
name: Darve, Félix
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A pore-scale model is introduced for two-phase flow in dense packings of polydisperse spheres. The model is developed as a component of a more general hydromechanical coupling framework based on the discrete element method, which will be elaborated in future papers. Here the emphasis is on the generation of a network of pores mapping the void space between spherical grains, and the definition of local criteria governing the primary drainage process. The pore space is decomposed by Regular Triangulation, from which a set of pores connected by throats are identified. A local entry capillary pressure is evaluated for each throat, based on the balance of capillary pressure and surface tension at equilibrium. The model reflects the possible entrapment of disconnected patches of the receding wetting phase. It is validated by a comparison with drainage experiments. A series of simulations are reported to illustrate size and boundary effects, key questions when studying small samples made of spherical particles be it in simulations or experiments. Repeated tests on samples of different sizes give evolution of water content which are not only scattered but also strongly biased for small sample sizes. More than 20,000 spheres are needed to reduce the bias on saturation below 0.02. Additional statistics are generated by subsampling a large sample of 64,000 spheres. They suggest that the minimal sampling volume for evaluating saturation is one hundred times greater that the sampling volume needed for measuring porosity with the same accuracy. This requirement in terms of sample size induces a need for efficient computer codes. The method described herein has a low algorithmic complexity in order to satisfy this requirement. It will be well suited to further developments toward coupled flow-deformation problems in which evolution of the microstructure require frequent updates of the pore network.
description: to appear in Advances in Water Resources
Frequency driven inversion of tunnel magnetoimpedance in magnetic tunnel junctions
Creators: name: Parui, Subir
name: Ribeiro, Mário
name: Atxabal, Ainhoa
name: Bedoya-Pinto, Amilcar
name: Sun, Xiangnan
name: Llopis, Roger
name: Casanova, Fèlix
name: Hueso, Luis E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetic tunnel junctions (MTJs) are basic building blocks for devices such as magnetic random access memories (MRAMs). The relevance for modern computation of non-volatile high-frequency memories makes ac-transport measurements of MTJs crucial for exploring this regime. Here we demonstrate a frequency-mediated effect in which the tunnel magnetoimpedance reverses its sign in a classical Co/Al{_2}O{_3}/NiFe MTJ, whereas we only observe a gradual decrease of tunnel magnetophase. Such effects are explained by the capacitive coupling of a parallel resistor and capacitor in the equivalent circuit model of the MTJ. Furthermore, we report a positive tunnel magnetocapacitance effect, suggesting the presence of a spin-capacitance at the two ferromagnet/tunnel-barrier interfaces. Our results are important for understanding spin transport phenomena at the high frequency regime, in which the spin-polarized charge accumulation at the two interfaces plays a crucial role.
description: 13 pages, 7 figures
Sistematización de las experiencias obtenidas mediante la ejecución de la propuesta de intervención social “estrategias lúdicas pedagógicas con proyección en sentido de vida, para el fortalecimiento del proceso de resocialización de los jóvenes bachilleres de Asomenores” año 2015
Creators: name: Carmona Vega, Bleydis Diana
name: Orozco Sanjuán, Ruth Mary
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Trabajo social con jóvenes
Juegos educativos
Juegos escolares

description: Tesis (Trabajador(a) Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social, 2016
description: La presente sistematización consiste en presentar de manera ordenada u organizada lo que ha sido el proceso de diseño, ejecución, los resultados y los momentos más significativos de la propuesta de intervención Social. Así mismo, tiene como objetivo analizar a partir de las experiencias de los jóvenes bachilleres de ASOMENORES, la incidencia que han tenido las actividades lúdicas pedagógicas con proyección en sentido de vida, en su proceso de resocialización año 2015; donde la característica principal de la sistematización se sustenta en mostrar las reflexiones obtenidas durante la aplicabilidad de esta propuesta. De igual manera mostrar la incidencia que de una u otra forma, tuvieron estas herramientas en los jóvenes bachilleres, sus familias y en la institución en general.
Essays on risk management and systemic risk in insurance
Creators: name: Bierth, Christopher
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: Regular vines
subject: Tail dependence
subject: Credit risk
subject: Liquidity risk
subject: Derivatives hedging
subject: Insurance
subject: Systemic risk
subject: 330
subject: Versicherungswirtschaft / Risikomanagement

description: The dissertation contributes to the discussion on risk management, financial stability, and the corresponding regulation of insurance companies in the form of five independent articles that empirically assess different aspects of risk management and financial default risk of insurers. The first article studies extreme dependence structures in equity markets as well as cross-dependences between credit derivatives and equities. The following two studies examine the issue of systemic risk in the insurance sector and explore the methodology of regulators to identify systemically important insurers. The fourth article of the dissertation is dedicated to the solvency regulation and its effect on the idiosyncratic risks of insurers. The final paper of the dissertation empirically investigates the impact of derivatives usage by U.S. insurers on the insurers' respective default risk and its exposure to systemic risk.
Campodea (Campodea) westwoodi Bagnall 1918
Creators: name: Sendra, Alberto
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplura
Campodeidae
Campodea
Campodea westwoodi

description: Campodea (Campodea) westwoodi Bagnall, 1918
Campodea (Campodea) westwoodi Bagnall, 1918: 112, figs 1, 9.
Diagnosis (Bagnall 1918b; Condé & Bareth 1998; Bareth 2006)
Body length 1.8–5.7 mm; epicuticle with tiny microdenticles; clothing setae short and thick with a few apical barbs; antennae with 18–22 antennomeres; sensillum of third antennomere in dorsal position; short, robust notal macrosetae with a few barbs; lp metanotal similar in size and shape to marginal setae; short, thick marginal setae smooth or with 2–3 barbs; one small trochanteral sensillum; 0–1 short la macrosetae on V urotergite, 1+1 la, 1+1 lp on VI–VII urotergites, 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment; cerci with 8–10 articles, each one subdivided in 4–5, covered in whorls of thin macrosetae bent forward and backward and surrounded by a few clothing setae.
Habitat and distribution
Soil-dwelling species generally found within the litter (Condé & Bareth 1998). It is known from England (Bagnall 1918b) to northeastern France up to the Paris Basin (Condé & Bareth 1970, 1998).
description: Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on page 62, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/4316883
Modelos de atención implementado por las instituciones que intervienen la problemática de explotación sexual comercial de niños, niñas y adolescentes en la ciudad de Cartagena de indias año 2006
Creators: name: Berrio Crecian, Nohora Milena
Publisher: name: Universidad de Cartagena
Year: 2007
Subjects: subject: Adolescentes
subject: Sexo - Aspectos sociales
subject: Niños - Aspectos sociales
subject: Trabajo social - Niños

description: El proyecto de investigación denominado Modelos de atención implementados por las instituciones que intervienen la problemática de la explotación sexual comercial de niños, niñas y adolescentes en la ciudad de Cartagena de Indias año 2006, en donde dicha investigación se analizará desde dos perspectivas por un lado cual es el papel que las instituciones tienen frente a este flagelo y por otro lado cual es la posición que tienen los jóvenes frente a la atención recibida.
Modelling the Nonlinear Response of Fibre-reinforced Bending Fluidic Actuators
Creators: name: Cacucciolo, Vito
name: Renda, Federico
name: Poccia, Ernesto
name: Laschi, Cecilia
name: Cianchetti, Matteo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Robotics (cs.RO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 74B20

description: Soft actuators are receiving increasing attention from the engineering community, not only in research but even for industrial applications. Among soft actuators, fibre-reinforced Bending Fluidic Actuators (BFAs) became very popular thanks to features such as robustness and easy design and fabrication. However, an accurate modelling of these smart structures, taking into account all the nonlinearities involved, is a challenging task. In this effort, we propose an analytical mechanical model to capture the quasi-static response of fibre-reinforced BFAs. The model is fully 3D and for the first time includes the effect of the pressure on the lateral surface of the chamber as well as the non-constant torque produced by the pressure at the tip. The presented model can be used for design and control, while providing information about the mechanics of these complex actuators.
description: 12 pages, 10 figures. Submitted to Smart Materials and Structures
Campanula secundiflora Visiani & Pancic 1862
Creators: name: Clementi, Moreno
name: Vukojičić, Snežana
name: Lakušić, Dmitar
name: Kuzmanović, Nevena
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Campanulaceae
Campanula
Campanula secundiflora

description: Campanula secundiflora Visiani & Pančić (1862: 442)
 Type (lectotype designated by Janković et al. 2014: 270):— SERBIA. In fissuris rupium calc[areis] ad rivum Panjiska Serb[ia] merid[ionali] August 1861, J. Pančić s.n. (PAD-H0023203!).
description: Published as part of Clementi, Moreno, Vukojičić, Snežana, Lakušić, Dmitar & Kuzmanović, Nevena, 2015, names published by Roberto de Visiani and Josif Pančić in Plantae Serbicae Rariores aut Novae-Decas I, pp. 121-134 in Phytotaxa 202 (2) on page 130, DOI: 10.11646/phytotaxa.202.2.4, http://zenodo.org/record/13641291
Gott als widersprüchliche Figur in Hartmanns von Aue ›Erec‹ und Gottfrieds von Straßburg ›Tristan‹
Creators: name: Hausmann, Albrecht
Publisher: name: Beiträge zur mediävistischen Erzählforschung
Year: 2020

description: Die These des Beitrags lautet: Wenn in weltlichen Erzähltexten auktorial bestätigte göttliche Interventionen den Handlungsverlauf bestimmen, kann dies in letzter Konsequenz zu einer Depotenzierung Gottes führen; Gott wird dann nämlich als Figur im Verfügungsbereich des Autors wahrnehmbar und von den Wider­sprüchen der Diegese affiziert. Der Beitrag zeigt zunächst, wie Hartmann von Aue im ›Erec‹ gegen das säkulare Erzählkonzept Chrétiens Gott als Akteur re-etabliert; scheinbare Widersprüche im göttlichen Handeln lösen sich bei Hartmann auf, so dass sich das Bild eines letztlich ›höfischen Gottes‹ ergibt. An Gottfrieds ›Tristan‹ lässt sich jedoch zeigen, wie eine solche Inanspruchnahme Gottes als Akteur prekär wird, wenn die ungelösten Widersprüche der höfischen Welt thematisch werden. In dieser Perspektive ist das Gottesurteil im ›Tristan‹ metapoetische Dekonstruktion eines Erzählmodells, das mit göttlichen Interventionen arbeitet und dazu führt, dass Gott zu einer widersprüchlichen Figur wird.
description: Beiträge zur mediävistischen Erzählforschung, 2020: Themenheft 6: Widersprüchliche Figuren in vormoderner Erzählliteratur
Quantum perceptron over a field and neural network architecture selection in a quantum computer
Creators: name: da Silva, Adenilton J.
name: Ludermir, Teresa B.
name: de Oliveira, Wilson R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this work, we propose a quantum neural network named quantum perceptron over a field (QPF). Quantum computers are not yet a reality and the models and algorithms proposed in this work cannot be simulated in actual (or classical) computers. QPF is a direct generalization of a classical perceptron and solves some drawbacks found in previous models of quantum perceptrons. We also present a learning algorithm named Superposition based Architecture Learning algorithm (SAL) that optimizes the neural network weights and architectures. SAL searches for the best architecture in a finite set of neural network architectures with linear time over the number of patterns in the training set. SAL is the first learning algorithm to determine neural network architectures in polynomial time. This speedup is obtained by the use of quantum parallelism and a non-linear quantum operator.
La creencia religiosa como un tipo particular de visión de mundo en Ludwig Wittgenstein
Creators: name: Muñoz Amador, Jorge Luis
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Creencia y duda
Filosofía y religión
Fe en Dios
Teología dogmática

description: Tesis (Filósofo) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Filosofía, 2016
description: El presente escrito tiene como propósito realizar un análisis a la creencia religiosa desde la perspectiva del filósofo austríaco Ludwig Wittgenstein. En la primera parte plantearé algunas diferencias que se encuentran presentes tanto en el juego de lenguaje de la creencia religiosa, así como en el juego de lenguaje de la creencia ordinaria o científica. En la segunda parte se mostrará cómo la creencia religiosa se encuentra unida a una forma particular de visión de mundo.
Entanglement and RG in the $O(N)$ vector model
Creators: name: Akers, Chris
name: Ben-Ami, Omer
name: Rosenhaus, Vladimir
name: Smolkin, Michael
name: Yankielowicz, Shimon
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the large $N$ interacting vector $O(N)$ model on a sphere in $4-ε$ Euclidean dimensions. The Gaussian theory in the UV is taken to be either conformally or non-conformally coupled. The endpoint of the RG flow corresponds to a conformally coupled scalar field at the Wilson-Fisher fixed point. We take a spherical entangling surface in de Sitter space and compute the entanglement entropy everywhere along the RG trajectory. In $4$ dimensions, a free non-conformal scalar has a universal area term scaling with the logarithm of the UV cutoff. In $4-ε$ dimensions, such a term scales as $1/ε$. For a non-conformal scalar, a $1/ε$ term is present both at the UV fixed point, and its vicinity. For flow between two conformal fixed points, $1/ε$ terms are absent everywhere. Finally, we make contact with replica trick calculations. The conical singularity gives rise to boundary terms residing on the entangling surface, which are usually discarded. Consistency with our results requires they be kept. We argue that, in fact, this conclusion also follows from the work of Metlitski, Fuertes, and Sachdev, which demonstrated that such boundary terms will be generated through quantum corrections.
description: 27 pages, 3 figures