3,561 results on '"Cosmography"'
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152. GEOPOLÍTICA AMERICANA A ESCALA GLOBAL. EL ESTRECHO DE MAGALLANES Y SU CONDICIÓN DE "PASAJE-MUNDO" EN EL SIGLO XVI.
- Author
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ONETTO PAVEZ, MAURICIO
- Subjects
- *
GEOPOLITICS , *WORLD history , *THEORY of knowledge , *SCIENTIFIC knowledge , *COSMOGRAPHY , *CORRIDORS - Abstract
The article analyzes the classifications assigned to the Strait of Magellan in the politicalterritorial configuration of the New World during the sixteenth century and related global dynamics happening at the time. The text is divided into three parts. The first is a theoretical reading of the historiographic problems and the temporalities surrounding the discovery of the Strait, which led to its identification as a "world-passage." The second examines the facts, actors and territorialities that consolidated it as a geopolitical reference point between 1520 and 1560. And, finally, the third studies the variations in its strategic importance in the period between 1560-1580, variations that reveal its role in delineating, synchronizing and speculating on a series of continental issues that affected simultaneously local and global spaces. [ABSTRACT FROM AUTHOR]
- Published
- 2020
153. HOLISMOKES: II. Identifying galaxy-scale strong gravitational lenses in Pan-STARRS using convolutional neural networks.
- Author
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Cañameras, R., Schuldt, S., Suyu, S. H., Taubenberger, S., Meinhardt, T., Leal-Taixé, L., Lemon, C., Rojas, K., and Savary, E.
- Subjects
- *
CONVOLUTIONAL neural networks , *GRAVITATIONAL lenses , *ASTRONOMICAL surveys , *SPECTROSCOPIC imaging , *COSMOGRAPHY - Abstract
We present a systematic search for wide-separation (with Einstein radius θE ≳ 1.5″), galaxy-scale strong lenses in the 30 000 deg2 of the Pan-STARRS 3π survey on the Northern sky. With long time delays of a few days to weeks, these types of systems are particularly well-suited for catching strongly lensed supernovae with spatially-resolved multiple images and offer new insights on early-phase supernova spectroscopy and cosmography. We produced a set of realistic simulations by painting lensed COSMOS sources on Pan-STARRS image cutouts of lens luminous red galaxies (LRGs) with redshift and velocity dispersion known from the sloan digital sky survey (SDSS). First, we computed the photometry of mock lenses in gri bands and applied a simple catalog-level neural network to identify a sample of 1 050 207 galaxies with similar colors and magnitudes as the mocks. Second, we trained a convolutional neural network (CNN) on Pan-STARRS gri image cutouts to classify this sample and obtain sets of 105 760 and 12 382 lens candidates with scores of pCNN > 0.5 and > 0.9, respectively. Extensive tests showed that CNN performances rely heavily on the design of lens simulations and the choice of negative examples for training, but little on the network architecture. The CNN correctly classified 14 out of 16 test lenses, which are previously confirmed lens systems above the detection limit of Pan-STARRS. Finally, we visually inspected all galaxies with pCNN > 0.9 to assemble a final set of 330 high-quality newly-discovered lens candidates while recovering 23 published systems. For a subset, SDSS spectroscopy on the lens central regions proves that our method correctly identifies lens LRGs at z ∼ 0.1–0.7. Five spectra also show robust signatures of high-redshift background sources, and Pan-STARRS imaging confirms one of them as a quadruply-imaged red source at zs = 1.185, which is likely a recently quenched galaxy strongly lensed by a foreground LRG at zd = 0.3155. In the future, high-resolution imaging and spectroscopic follow-up will be required to validate Pan-STARRS lens candidates and derive strong lensing models. We also expect that the efficient and automated two-step classification method presented in this paper will be applicable to the ∼4 mag deeper gri stacks from the Rubin Observatory Legacy Survey of Space and Time (LSST) with minor adjustments. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
154. Las formas del mundo en el México antiguo.
- Author
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Díaz, Ana
- Subjects
NAHUAS ,COSMOGRAPHY ,CULTURE ,INDIGENOUS peoples of Mexico ,CHRISTIANITY - Abstract
Copyright of Studi e Materiali di Storia delle Religioni is the property of Editrice Morcelliana S.p.A. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
155. TDCOSMO: IV. Hierarchical time-delay cosmography – joint inference of the Hubble constant and galaxy density profiles.
- Author
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Birrer, S., Shajib, A. J., Galan, A., Millon, M., Treu, T., Agnello, A., Auger, M., Chen, G. C.-F., Christensen, L., Collett, T., Courbin, F., Fassnacht, C. D., Koopmans, L. V. E., Marshall, P. J., Park, J.-W., Rusu, C. E., Sluse, D., Spiniello, C., Suyu, S. H., and Wagner-Carena, S.
- Subjects
- *
HUBBLE constant , *COSMOGRAPHY , *GRAVITATIONAL lenses , *ELLIPTICAL galaxies , *SPECTRAL imaging , *DARK matter - Abstract
The H0LiCOW collaboration inferred via strong gravitational lensing time delays a Hubble constant value of H0 = 73.3−1.8+1.7 H 0 = 73. 3 − 1.8 + 1.7 $ H_0 = 73.3^{+1.7}_{-1.8} $ km s−1 Mpc−1, describing deflector mass density profiles by either a power-law or stars (constant mass-to-light ratio) plus standard dark matter halos. The mass-sheet transform (MST) that leaves the lensing observables unchanged is considered the dominant source of residual uncertainty in H0. We quantify any potential effect of the MST with a flexible family of mass models, which directly encodes it, and they are hence maximally degenerate with H0. Our calculation is based on a new hierarchical Bayesian approach in which the MST is only constrained by stellar kinematics. The approach is validated on mock lenses, which are generated from hydrodynamic simulations. We first applied the inference to the TDCOSMO sample of seven lenses, six of which are from H0LiCOW, and measured H0 = 74.5−6.1+5.6 H 0 = 74. 5 − 6.1 + 5.6 $ H_0 = 74.5^{+5.6}_{-6.1} $ km s−1 Mpc−1. Secondly, in order to further constrain the deflector mass density profiles, we added imaging and spectroscopy for a set of 33 strong gravitational lenses from the Sloan Lens ACS (SLACS) sample. For nine of the 33 SLAC lenses, we used resolved kinematics to constrain the stellar anisotropy. From the joint hierarchical analysis of the TDCOSMO+SLACS sample, we measured H0 = 67.4−3.2+4.1 H 0 = 67. 4 − 3.2 + 4.1 $ H_0 = 67.4^{+4.1}_{-3.2} $ km s−1 Mpc−1. This measurement assumes that the TDCOSMO and SLACS galaxies are drawn from the same parent population. The blind H0LiCOW, TDCOSMO-only and TDCOSMO+SLACS analyses are in mutual statistical agreement. The TDCOSMO+SLACS analysis prefers marginally shallower mass profiles than H0LiCOW or TDCOSMO-only. Without relying on the form of the mass density profile used by H0LiCOW, we achieve a ∼5% measurement of H0. While our new hierarchical analysis does not statistically invalidate the mass profile assumptions by H0LiCOW – and thus the H0 measurement relying on them – it demonstrates the importance of understanding the mass density profile of elliptical galaxies. The uncertainties on H0 derived in this paper can be reduced by physical or observational priors on the form of the mass profile, or by additional data. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
156. TDCOSMO: III. Dark matter substructure meets dark energy. The effects of (sub)halos on strong-lensing measurements of H0.
- Author
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Gilman, D., Birrer, S., and Treu, T.
- Subjects
- *
DARK matter , *GRAVITATIONAL lenses , *COSMOGRAPHY , *SQUARE root , *TIME management , *HUBBLE constant , *QUASARS , *GALACTIC halos - Abstract
Time delay cosmography uses the arrival time delays between images in strong gravitational lenses to measure cosmological parameters, in particular the Hubble constant H0. The lens models used in time delay cosmography omit dark matter subhalos and line-of-sight halos because their effects are assumed to be negligible. We explicitly quantify this assumption by analyzing mock lens systems that include full populations of dark matter subhalos and line-of-sight halos, applying the same modeling assumptions used in the literature to infer H0. We base the mock lenses on six quadruply imaged quasars that have delivered measurements of the Hubble constant, and quantify the additional uncertainties and/or bias on a lens-by-lens basis. We show that omitting dark substructure does not bias inferences of H0. However, perturbations from substructure contribute an additional source of random uncertainty in the inferred value of H0 that scales as the square root of the lensing volume divided by the longest time delay. This additional source of uncertainty, for which we provide a fitting function, ranges from 0.7 − 2.4%. It may need to be incorporated in the error budget as the precision of cosmographic inferences from single lenses improves, and it sets a precision limit on inferences from single lenses. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
157. TDCOSMO: III. Dark matter substructure meets dark energy. The effects of (sub)halos on strong-lensing measurements of H0.
- Author
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Gilman, D., Birrer, S., and Treu, T.
- Subjects
DARK matter ,GRAVITATIONAL lenses ,COSMOGRAPHY ,SQUARE root ,TIME management ,HUBBLE constant ,QUASARS ,GALACTIC halos - Abstract
Time delay cosmography uses the arrival time delays between images in strong gravitational lenses to measure cosmological parameters, in particular the Hubble constant H
0 . The lens models used in time delay cosmography omit dark matter subhalos and line-of-sight halos because their effects are assumed to be negligible. We explicitly quantify this assumption by analyzing mock lens systems that include full populations of dark matter subhalos and line-of-sight halos, applying the same modeling assumptions used in the literature to infer H0 . We base the mock lenses on six quadruply imaged quasars that have delivered measurements of the Hubble constant, and quantify the additional uncertainties and/or bias on a lens-by-lens basis. We show that omitting dark substructure does not bias inferences of H0 . However, perturbations from substructure contribute an additional source of random uncertainty in the inferred value of H0 that scales as the square root of the lensing volume divided by the longest time delay. This additional source of uncertainty, for which we provide a fitting function, ranges from 0.7 − 2.4%. It may need to be incorporated in the error budget as the precision of cosmographic inferences from single lenses improves, and it sets a precision limit on inferences from single lenses. [ABSTRACT FROM AUTHOR]- Published
- 2020
- Full Text
- View/download PDF
158. Studying the Asian Ocean-Sea.
- Author
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Mukherjee, Rila
- Subjects
- *
COSMOGRAPHY , *TERRITORIAL waters , *OCEAN - Abstract
This article urges a rethinking of South Asian cosmography to counter our notion of seascapes lying outside notions of sovereignty, territoriality and technologies of control. While seas have emerged as central to economic and political security for most of the worlds' states, this is seen as a comparatively new phenomenon because South Asia's territoriality has always been seen as land-based. The emphasis on the modern has resulted in a neglect of South Asia's rich tradition of maritime expressiveness and generates a 'maritime blindness' affecting policy formulation, despite works on seafaring which trace diverse maritime perceptions from Pali and Sanskrit literature, sculptures, coins, paintings and epigraphy. This article claims that waterscapes were not absent in Asian ideas of territoriality, but differentiating between awareness in literary expressions of political selfhood wherein rulers saw the sea as boundary or even space of overlordship, and actual instances of ordering and controlling maritime spaces is important. By contrast, China's example as keeper of meticulous records pertaining to maritime matters shows attempts at actively controlling maritime spaces and provides new ways of reading South Asian perceptions of the sea. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
159. A Cosmography Approach to Dark Energy Cosmologies: New Constraints Using the Hubble Diagrams of Supernovae, Quasars, and Gamma-Ray Bursts.
- Author
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Rezaei, Mehdi, Pour-Ojaghi, Saeed, and Malekjani, Mohammad
- Subjects
- *
GAMMA ray bursts , *QUASARS , *DARK energy , *MARKOV chain Monte Carlo , *COSMOGRAPHY , *SUPERNOVAE , *MONTE Carlo method - Abstract
In the context of a cosmography approach to using the data of the Hubble diagram for supernovae, quasars, and gamma-ray bursts, we study dark energy (DE) parameterizations and the concordance cold dark matter (ΛCDM) universe. Using different combinations of data samples including (i) supernovae (Pantheon), (ii) Pantheon + quasars. and (iii) Pantheon + quasars + gamma-ray bursts, and applying the minimization of χ2 function of the distance modulus of data samples in the context of the Markov Chain Monte Carlo method, we obtain constrained values of cosmographic parameters in a model-independent cosmography scenario. We then investigate our analysis, for different concordance ΛCDM cosmology, wCDM, Chevallier–Polarski–Linder, and Pade parameterizations. Comparing the numerical values of the cosmographic parameters obtained for DE scenarios with those of the model-independent method, we show that the concordance ΛCDM model has serious issues when we involve quasar and gamma-ray burst data in our analysis. While high-redshift quasars and gamma-ray bursts can falsify the concordance model, our results using a cosmography approach indicate that the other DE parameterizations are still consistent with these observations. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
160. On the Accuracy of Time-delay Cosmography in the Frontier Fields Cluster MACS J1149.5+2223 with Supernova Refsdal.
- Author
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Grillo, C., Rosati, P., Suyu, S. H., Caminha, G. B., Mercurio, A., and Halkola, A.
- Subjects
- *
SUPERNOVAE , *COSMOGRAPHY , *DARK energy , *GALAXY clusters , *ENERGY density , *TIME measurements - Abstract
We study possible systematic effects on the values of the cosmological parameters measured through strong lensing analyses of the Hubble Frontier Field galaxy cluster MACS J1149.5+2223. We use the observed positions of a large set of spectroscopically selected multiple images, including those of supernova "Refsdal" with their published time delays. Starting from our reference model in a flat ΛCDM cosmology, published in Grillo et al. (2018), we confirm the relevance of the longest measurable time delay, between SX and S1, and an approximately linear relation between its value and that of H0. We perform true blind tests by considering a range of time delays around its original estimate of 345 ± 10 days, as an accurate measurement of this time delay is still not known at the time of analysis and writing. We investigate separately the impact of a constant sheet of mass at the cluster redshift, of a power-law profile for the mass density of the cluster main halo and of some scatter in the cluster member scaling relations. Remarkably, we find that these systematic effects do not introduce a significant bias on the inferred values of H0 and Ωm and that the statistical uncertainties dominate the total error budget: a 3% uncertainty on the time delay of image SX translates into approximately 6% and 40% (including both statistical and systematic 1σ) uncertainties for H0 and Ωm, respectively. Furthermore, our model accurately reproduces the extended surface brightness distribution of the supernova host. We also present the interesting possibility of measuring the value of the equation-of-state parameter w of the dark energy density, currently with a 30% uncertainty. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
161. El peregrino entre el itinerario y la cuadrícula: espacio abstracto y sujeto moderno en las Soledades de Luis de Góngora.
- Author
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Vivó Capdevila, Emilio Pedro
- Subjects
COSMOGRAPHY ,SCIENTIFIC Revolution ,SUBJECTIVITY ,CULTS - Abstract
Copyright of Hipogrifo: revista de literatura y cultura del siglo de oro is the property of Hipogrifo: revista de literatura y cultura del siglo de oro and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
162. De Panamá a Magallanes: pasajes-mundo y secretos de la tierra desde la figura de Juan Ladrillero.
- Author
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Onetto Pavez, Mauricio and Vélez Posada, Andrés
- Subjects
SIXTEENTH century ,EARLY modern history ,ACQUISITION of territory ,STRAITS ,MONARCHY ,FAMILY secrets - Abstract
Copyright of Trashumante. Revista Americana de Historia Social is the property of Universidad de Antioquia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
163. Cosmographical warfare: secrecy and heroism in Juan de Miramontes's Armas antárticas.
- Author
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McCloskey, Jason
- Subjects
- *
COURAGE in literature , *COSMOGRAPHY - Abstract
This article examines the historical and cultural significance of cosmography in the early modern Spanish Empire, as seen in Juan de Miramontes Zuázola's seventeenth-century epic poem, Armasantárticas (2006). It takes the description of a pilot in the harbor of Callao, Peru, on the eve of Francis Drake's arrival at the port as its point of departure. The essay examines the portrayal of cosmography as a "secret science", to use the words of María M. Portuondo (2009). The poem suggests that Drake's surprise attack was made possible by cosmographical knowledge. It also depicts cosmography as a countermeasure to combat future pirate incursions by sending the cosmographer Pedro Sarmiento de Gamboa on a data-collecting expedition to the Strait of Magellan. Consistent with the important role accorded to cosmography in matters of the state, Armas antárticas also makes out the practitioners of cosmography to be heroic in their own right. This departs markedly from the conventional notions of epic heroism, whether it be of the traditional, chivalric sort or of the early modern, gunpowder sort. Such a perspective is in line with the new kind of epic heroism pioneered by Luis Camões in his sixteenth-century epic, Os Lusíadas (1973), as analyzed by Ayesha Ramachandran (2015), but it also carries with it negative connotations that blur the distinction between seafarers like Ferdinand Magellan and Francis Drake. It was sailors like Drake, moreover, who foiled attempts to keep cosmography secret, prompting a reorientation of its strategic use away from secrecy and toward controlled dissemination. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
164. A Book of Cities: Mapping Urban Space in Braun and Hogenberg's Civitates Orbis Terrarum (1572-1617).
- Author
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NĂIDUŢ, PETRUŢA
- Subjects
PUBLIC spaces ,COSMOGRAPHY - Abstract
The present article sets out to explore the tradition and the innovative forces involved in the production of the first city atlas, Civitates orbis terrarum, a six-volume collection of town images published by Georg Braun and Franz Hogenberg between 1572 and 1617. In doing so, it considers the consequences of the rediscovery of Ptolemy's notions of geography and chorography and traces how time-honoured ideas and new practices of describing places meet in the depiction of early modern cities. The article discusses the potential of chorography as a genre capable of representing a city while trying to convey information about its character and addresses the role of printing in the dissemination of city views. The analysis extends from classic notions and modern practices of chorography to the humanist pursuit of a global vision that can be identified in the design of the Civitates, where the metaphor of the theatre appears to extend from the material of the atlas to the book itself. The research is mostly based on social and cultural histories of cartography and cosmography which can contribute to a better understanding of the complex significance of city images in Braun and Hogenberg's project. [ABSTRACT FROM AUTHOR]
- Published
- 2020
165. High-redshift cosmography: auxiliary variables versus Padé polynomials.
- Author
-
Capozziello, S, D'Agostino, R, and Luongo, O
- Subjects
- *
MONTE Carlo method , *COSMOGRAPHY , *TAYLOR'S series , *POLYNOMIALS , *DARK energy , *REDSHIFT , *LUMINOSITY , *STELLAR luminosity function - Abstract
Cosmography becomes non-predictive when cosmic data span beyond the redshift limit z ≃ 1. This leads to a strong convergence issue that jeopardizes its viability. In this work, we critically compare the two main solutions of the convergence problem, i.e. the y -parametrizations of the redshift and the alternatives to Taylor expansions based on Padé series. In particular, among several possibilities, we consider two widely adopted parametrizations, namely y 1 = 1− a and |$y_2=\arctan (a^{-1}-1)$| , being a the scale factor of the Universe. We find that the y 2-parametrization performs relatively better than the y 1-parametrization over the whole redshift domain. Even though y 2 overcomes the issues of y 1, we get that the most viable approximations of the luminosity distance dL (z) are given in terms of Padé approximations. In order to check this result by means of cosmic data, we analyse the Padé approximations up to the fifth order, and compare these series with the corresponding y -variables of the same orders. We investigate two distinct domains involving Monte Carlo analysis on the Pantheon Superovae Ia data, H (z) and shift parameter measurements. We conclude that the (2,1) Padé approximation is statistically the optimal approach to explain low- and high-redshift data, together with the fifth-order y 2-parametrization. At high redshifts, the (3,2) Padé approximation cannot be fully excluded, while the (2,2) Padé one is essentially ruled out. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
166. The Understanding and Uses of the "Day Court Diagram" in Qin-Han Hemerology and Calendrical Astrology.
- Author
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Kalinowski, Marc
- Subjects
ARCHAEOLOGY ,ASTROLOGY ,MANUSCRIPTS ,COSMOGRAPHY ,GEOMETRY - Abstract
Archaeological discoveries related to hemerology and calendrical astrology have drawn attention to the existence of a square geometric pattern consisting in its simplest form of a central cross and four right angles in the corners opening to the exterior. In this paper I examine the most common terms used in modern research to name the diagram. I then rank the existing diagrams based on the specific contexts for which they were designed, along with a presentation of the technical features of each diagram. Finally, I show how the various forms taken by these diagrams may lead to a better understanding of their meaning and functions and provide preliminary answers to questions such as the purpose of inserting a diagram in a technical text, the advantage of a diagram compared with a list or a table, and more generally, the relationship between text and image in the excavated manuscripts. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
167. Mapping the Spiritual Baptist Universe: Black Atlantic Cosmography and the Spatiality of Spirit in Trinidad and Tobago
- Author
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Thornton, Brendan Jamal and Kilde, Jeanne Halgren, book editor
- Published
- 2022
- Full Text
- View/download PDF
168. Aethicus Ister
- Author
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Marone, Paola
- Published
- 2019
- Full Text
- View/download PDF
169. An Ottoman Cosmography: Translation of Cihānnümā.
- Author
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Knights, Theo
- Subjects
- *
COSMOGRAPHY , *TRANSLATING & interpreting , *MARGINALIA , *POLITICAL stability , *ENLIGHTENMENT , *MIRACLES - Abstract
Employing autobiographical accounts, Shafir also suggests that Katib Çelebi viewed his inheritance as enabling his focus on the madrasa-taught sciences, which he held in the highest esteem. Eventually, Katib Çelebi conceived his magnum opus, what Hagen calls the "Encyclopedia Project." Hagen draws attention to Katib Çelebi's lack of a formal madrasa education, which foreclosed a traditional scholarly career early on. [Extracted from the article]
- Published
- 2023
- Full Text
- View/download PDF
170. Wonders and Rarities: The Marvelous Book That Traveled the World and Mapped the Cosmos by Travis Zadeh (review).
- Author
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Uy II, Cyril V.
- Subjects
CURIOSITIES & wonders ,NONFICTION - Published
- 2023
- Full Text
- View/download PDF
171. Kosmos
- Author
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Alexander von Humboldt and Alexander von Humboldt
- Subjects
- Astronomy, Physical geography, Cosmography, Science--History
- Abstract
In'Kosmos'präsentiert Alexander von Humboldt eine umfassende Erkundung der Natur und ihrer Wechselwirkungen. Der Autor, ein Pionier der modernen Wissenschaft, verbindet in seinem Werk empirische Forschung mit poetischer Prosa und schafft so ein einzigartiges literarisches Werk, das die Phänomene der Erde und des Universums in einem holistischen Rahmen betrachtet. Das Buch erstreckt sich über verschiedene Disziplinen, darunter Geographie, Geologie und Botanikwissenschaft, und zeugt von Humboldts unermüdlicher Neugier und seinem tiefen Verständnis für die komplexen Systeme der Natur. Durch seine detaillierte Beobachtung und Analyse wird der Leser eingeladen, die Schönheit und Vielfalt der Welt zu entdecken, während Humboldt zugleich philosophische Fragestellungen aufwirft, die bis heute relevant sind. Alexander von Humboldt, geboren 1769, war ein deutscher Naturforscher und Entdecker, dessen Reisen und wissenschaftliche Beiträge das Naturverständnis des 19. Jahrhunderts grundlegend prägten. Sein interdisziplinärer Ansatz und sein Streben nach einer ganzheitlichen Betrachtungsweise der Natur machten ihn zu einer Schlüsselfigur der Romantik und der Aufklärung. Seine Erfahrungen in Südamerika und Europa, kombiniert mit seiner Fähigkeit, Wissenschaft und Ästhetik zu vereinen, bilden das Fundament für'Kosmos', das nicht nur als wissenschaftliches Werk, sondern auch als ein Manifest des menschlichen Wissens angesehen werden kann.'Kosmos'ist eine unverzichtbare Lektüre für jeden, der sich für die Schnittstellen von Wissenschaft, Philosophie und Kunst interessiert. Humboldt fordert den Leser auf, über die bekannten Grenzen des Wissens hinauszugehen und die Welt in ihrer Gesamtheit zu betrachten. Dieses Meisterwerk inspiriert dazu, ein tiefes Verständnis für die Natur zu entwickeln und die Verantwortung zu erkennen, die wir für unseren Planeten tragen. Ein wahrhaft zeitloser Klassiker, der sowohl für Wissenschaftler als auch für Literaturliebhaber von Bedeutung ist.
- Published
- 2013
172. Cosmographic test of chameleon gravity
- Author
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Salehi, A.
- Published
- 2023
- Full Text
- View/download PDF
173. Wonders and Rarities: The Marvelous Book That Traveled the World and Mapped the Cosmos
- Author
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Travis Zadeh and Travis Zadeh
- Abstract
"During the thirteenth century, the great scholar, geographer, physician, and astronomer Zakariya al-Qazwini (1203-1283) authored what became perhaps the single most influential work of natural history in the Islamic world: a compendium of curiosities entitled 'Aja'ib al-Makhluqat wa Ghara'ib al-Mawjudat, or, loosely translated, Wonders and Rarities. Following the travels of Qazwini's book across time and place, Travis Zadeh examines how Muslim intellectuals and religious authorities conceived of the world before the discovery of the western hemisphere and the rise of heliocentrism: through the language of wonder and rarity", Includes bibliographical references and index., Introduction: Wonder's End -- I. A World within a Book: Stranger Lands -- Measures of Authority -- Astral Power -- II. Wonders to Behold: Cosmic Order -- Terrestrial Designs -- Alchemical Bodies -- III. Distant Shores: Long Divided -- Across the Globe -- On the Edge -- Coda: A Hidden Map., "During the thirteenth century, the great scholar, geographer, physician, and astronomer Zakariya al-Qazwini (1203-1283) authored what became perhaps the single most influential work of natural history in the Islamic world: a compendium of curiosities entitled 'Aja'ib al-Makhluqat wa Ghara'ib al-Mawjudat, or, loosely translated, Wonders and Rarities. Following the travels of Qazwini's book across time and place, Travis Zadeh examines how Muslim intellectuals and religious authorities conceived of the world before the discovery of the western hemisphere and the rise of heliocentrism: through the language of wonder and rarity"
- Published
- 2023
174. Cosmography in Early Modern Iberia (c.1300–1700)
- Author
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García Redondo, José María [0000-0002-4349-3306], García Redondo, José María, García Redondo, José María [0000-0002-4349-3306], and García Redondo, José María
- Abstract
During the so-called “Age of Discovery” in the fifteenth and sixteenth centuries, the kingdoms of Spain (Castile) and Portugal launched innumerable expeditions, opened new world routes, created new colonies, and imposed their control over remote peoples and resources which provoked a boost to the study of cosmography as a basic tool for the growth and maintenance of their overseas empires
- Published
- 2023
175. Extra-Terrestrial Geography: Cosmography Before and After Von Humoldt
- Author
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Cosgrove, Denis
- Subjects
Geography ,Alexander Von Humboldt ,Cosmography - Published
- 2000
176. Cosmic Centers: C. S. Lewis & the Insights of Medieval Cosmology.
- Author
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Piper, Phillip
- Subjects
- *
GEOCENTRIC model (Astronomy) , *ASTRONOMICAL models , *COSMOGRAPHY , *HUMILIATION , *PUBLIC shaming - Abstract
The article discusses that geocentrism is another manifestation of typical human egocentrism. It mentions that geocentrism has always been inherently anthropocentric, and is a largely unquestioned assumption. It also mentions the geocentric cosmography served rather for man's humiliation than for his exaltation.
- Published
- 2020
177. Angel Ethnogenesis and the Cahokian Diaspora.
- Author
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Watts Malouchos, Elizabeth
- Subjects
- *
DIASPORA , *ANGELS , *INDIGENOUS peoples of Mexico , *NATIVE Americans , *COSMOGRAPHY - Abstract
The rise of Cahokia, the largest precontact Native American city north of Mexico, was precipitated by centripetal and centrifugal mobilizations of peoples, ideas, objects, and practices. To interrogate outward Cahokian movements as diasporic, I reassess relationships between Cahokia and the Angel polity on the northeastern Mississippian frontier. I approach Mississippian communities through a relational framework as ever-emerging assemblages constituted by both human and non-human actors. This framework emphasizes ethnogenesis as a process of diaspora whereby dispersed groups are in a perpetual state of community-making outside of, but in reference to, a homeland. I focus on an analysis of the Angel assemblage of Ramey Incised pottery, a power-laden Cahokian object, and determine that Angel Ramey exhibits local paste signatures in what are otherwise primarily Cahokian-style pots. Further, I contextualize artifactual connections with socio-spatial practices of Angel communities and demonstrate that aligning residential structures and communal features to a Cahokian cosmography was a principal part of community-identity-making throughout the Angel polity. Ultimately, I argue that relationships with Cahokia motivated ethnogenesis in Angel communities. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
178. A geometric probe of cosmology – I. Gravitational lensing time delays and quasar reverberation mapping.
- Author
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Ng, Angela L H and Lewis, Geraint F
- Subjects
- *
GRAVITATIONAL lenses , *QUASARS , *ANGULAR distance , *COSMOGRAPHY , *TIME measurements - Abstract
We present a novel, purely geometric probe of cosmology based on measurements of differential time delays between images of strongly lensed quasars due to finite source effects. Our approach is solely dependent on cosmology via a ratio of angular diameter distances, the image separation, and the source size. It thereby entirely avoids the challenges of lens modelling that conventionally limit time delay cosmography, and instead entails the lensed reverberation mapping of the quasar broad-line region. We demonstrate that differential time delays are measurable with short-cadence spectroscopic monitoring of lensed quasars, through the timing of kinematically identified features within the broad emission lines. This provides a geometric determination of an angular diameter distance ratio complementary to standard probes, and as a result is a potentially powerful new method of constraining cosmology. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
179. Recovering ΛCDM model from a cosmographic study.
- Author
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Amirhashchi, Hassan and Amirhashchi, Soroush
- Subjects
- *
HUBBLE constant , *DARK energy , *MARKOV chain Monte Carlo , *TYPE I supernovae , *MARKOV processes , *REDSHIFT , *DIFFERENTIAL equations - Abstract
Using the mathematical definitions of deceleration and jerk parameters we obtain a general differential equation for squared Hubble parameter. For a constant jerk, this differential equation leads to an exact function for Hubble parameter. By the aid of this exact Hubble function we can exactly reconstruct any other cosmographic parameters. We also obtained a general function for transition redshift as well as spacetime curvature. Our derived functions clearly impose a lower limit on the jerk parameter which is j min ≥ - 0.125 . Moreover, we found that the jerk parameter indicates the geometry of the spacetime i.e any deviation from j = 1 imply to a non-flat spacetime. In other word j ≠ 1 refers to a dynamical, time varying, dark energy. From obtained Hubble function we recover the analogue of Λ CDM model. To constrain cosmographic parameters as well as transition redshift and spacetime curvature of the recovered Λ CDM model, we used Metropolis–Hasting algorithm to perform Monte Carlo Markov Chain analysis by using observational Hubble data obtained from cosmic chronometric technique, BAO data, Pantheon compilation of Supernovae type Ia, and their joint combination. The only free parameters are H, A (Ω m) and j. From joint analysis we obtained H 0 = 69.9 ± 1.7 , A (∼ Ω 0 m) = 0. 279 - 0.017 + 0.013 , B (∼ Ω 0 X) = 0. 721 - 0.013 + 0.017 , j 0 = 1. 038 - 0.023 + 0.061 and z t = 0. 706 - 0.034 + 0.031 . [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
180. Diagramming Sabbateanism.
- Author
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Chajes, J. H.
- Subjects
COSMOGRAPHY ,SCHOLARS ,COINAGE - Abstract
Scholars have only recently started to study ilanot (lit., "trees"), the cosmographic genre constituted by the wedding of kabbalistic diagrams—the trees of the metonymic name—and large parchment sheets. Differences of kabbalistic opinion naturally found expression in these "maps of God." The Sabbatean messianic movement of the 1660s and its prolonged and impactful afterlife produced, among other things, a number of distinctive kabbalistic opinions. For the most part, these innovations were tightly integrated with the speculations associated with "Lurianic" Kabbalah based on the teachings of R. Isaac Luria (1534–1572). The great Lurianic ilanot were designed and circulated in the second third of the seventeenth century, not long before the emergence of Sabbateanism, but their golden age was "the long eighteenth century"—a British coinage for roughly 1660–1830—and thus coincided with the profound and pervasive absorption of Sabbatean elements in precisely those sectors that produced and consumed these artifacts, including nascent Hasidism. The deceptively simple question at the heart of this article is this: What would it mean to diagram Sabbateanism? Or to put it another way, what would constitute a Sabbatean ilan? How might distinctive Sabbatean ideas have found diagrammatic expression in this genre? Once identified as such, what do Sabbatean ilanot tell us about the meanings of Sabbateanism in the contexts within which they were produced? [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
181. Ravennai Anonymus Cosmographiája és a korai magyar történet.
- Author
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RICHÁRD, SZÁNTÓ
- Subjects
COSMOGRAPHY ,HUNGARIAN history ,GOTHS ,TRIBES - Abstract
The Unknow Ravennese (Anonymous of Ravenna) wrote the Cosmography around 700. His work contains the description of the Earth in five books. The depiction of east Europe is in the fourth book. Anonymous of Ravenna listed the countries (patria) of the Caucasus (Lazia/Lazike, Abasgia/Abkhazia, Absilisa, Zichia) and the names of the cities in this region. The Cosmography includes the names of the countries (patria) in the northern foreground of the Caucasus (Alania, Khazaria, Onogoria). The countries lying in the territory of the Crimea appears in the Cosmography. Bosphorania, Sugdabon, Fanaguron and the country of the Goths (Getho Githorum) were little countries in the Crimea and Kerch Strait. This paper focuses on the description of Onogoria because this region was a dwelling place of the Hungarian tribes in the period of their wandering. [ABSTRACT FROM AUTHOR]
- Published
- 2020
182. Avarok említése középkori földrajzi művekben.
- Author
-
SZABOLCS, POLGÁR
- Subjects
AVARS ,MEDIEVAL geography ,MEDIEVAL cartography ,COSMOGRAPHY ,MEDIEVAL historiography - Abstract
Samuel Szádeczky-Kardoss and his co-authors spent many years on the written sources on the Avars. Translations and commentaries were published in Hungarian in two volumes. In the published material are mostly narrative sources on the political events. Short geographical reports were omitted. In this paper I focus on three medieval geographical works mentioned the Avars: Anonymous of Ravenna, the Frankish Cosmography and the Ebstorf map. The first and second are contemporary sources (7-8th c.), but the map was constructed in the 13th century. These short sources help to complete and specify our knowledge on the history and medieval historiography of the Avars. [ABSTRACT FROM AUTHOR]
- Published
- 2020
183. A RELAÇÃO ENTRE CIÊNCIA NATURAL E COSMOLOGIA EM TOMÁS DE AQUINO.
- Author
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dos Santos, Evaniel Brás
- Subjects
PHYSICAL cosmology ,UNIVERSE ,METAPHYSICAL cosmology - Abstract
Copyright of Trans/Form/Ação is the property of Trans/Form/Acao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
184. Cosmographic description, law, and fact making: Juan López de Velasco's American and Peninsular questionnaires.
- Author
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Ruan, Felipe E.
- Subjects
- *
COSMOGRAPHY , *BUREAUCRACY , *MONARCHY , *LEGITIMACY of governments , *LEARNING - Abstract
The article provides information on the cosmographical projects in Spain including documents common to the legal bureaucratic system of the hispanic monarchy, legitimacy from legalistic underpinnings and traditional of humanist learning and administrative state culture. Topics include monarchical government, probanzas and legal instruments.
- Published
- 2019
- Full Text
- View/download PDF
185. Smugglers, migrants, and demons: Cosmographies of mobility in the northern Caribbean.
- Author
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KAHN, JEFFREY S.
- Subjects
- *
SMUGGLERS , *IMMIGRANTS , *DEMONOLOGY , *COSMOGRAPHY - Abstract
Haitian sea migration and US maritime policing have emerged in tandem since the 1980s. During this time, many Haitians have begun to assume that migration voyages succeed only because of ritual exchanges—in particular, transactions between migrants and sea‐traversing, other‐than‐human beings. These ritual payments, along with other activities of border crossing and control, have placed ships, routes, and offshore detention centers in an interconnected constellation that spans the northern Caribbean. These cosmographically deep spatial configurations exceed concepts like "region" or "sociocultural area." Cosmographic depth, while not unique to these spaces, is made visible in the array of entities, forces, and moral sensibilities that compose them. Seeing cosmographically highlights this depth, which is often rendered inconsequential by dominant bureaucratic registers of border securitization. [oceans, migration, space, ritual economies, cosmology, Guantánamo Bay, Haiti, Caribbean] [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
186. Astrometric requirements for strong lensing time-delay cosmography.
- Author
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Birrer, Simon and Treu, Tommaso
- Subjects
- *
COSMOGRAPHY , *HUBBLE constant , *GRAVITATIONAL potential , *INFRARED technology , *COSMOLOGICAL constant , *TIME delay systems - Abstract
The time-delay between the arrival of photons of multiple images of time-variable sources can be used to constrain absolute distances in the Universe, and in turn obtain a direct estimate of the Hubble constant and other cosmological parameters. To convert the time-delay into distances, it is well known that the gravitational potential of the main deflector and the contribution of the matter along the line of sight need to be known to a sufficient level of precision. In this paper, we discuss a new astrometric requirement that is becoming important, as time-delay cosmography improves in precision and accuracy with larger samples, and better data and modelling techniques. We derive an analytic expression for the propagation of astrometric uncertainties on the multiple image positions into the inference of the Hubble constant and derive requirements depending on image separation and relative time-delay. We note that this requirement applies equally to the image position measurements and to the accuracy of the model in reproducing them. To illustrate the requirement, we discuss some example lensing configurations and highlight that, especially for time-delays of order 10 d or shorter, the relative astrometric requirement is of order milliarcseconds, setting a tight requirement on both measurements and models. With current optical infrared technology, astrometric uncertainties may be the dominant limitation for strong lensing cosmography in the small image-separation regime when high-precision time-delays become accessible. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
187. The peculiar velocity field up to z ∼ 0.05 by forward-modelling Cosmicflows-3 data.
- Author
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Graziani, R, Courtois, H M, Lavaux, G, Hoffman, Y, Tully, R B, Copin, Y, and Pomarède, D
- Subjects
- *
LOGNORMAL distribution , *VELOCITY , *WALLABIES , *COSMOGRAPHY , *DARK matter , *PHYSICAL cosmology , *DATA modeling - Abstract
A hierarchical Bayesian model is applied to the Cosmicflows-3 catalogue of galaxy distances in order to derive the peculiar velocity field and distribution of matter within z ∼ 0.054. The model assumes the ΛCDM model within the linear regime and includes the fit of the galaxy distances together with the underlying density field. By forward modelling the data, the method is able to mitigate biases inherent to peculiar velocity analyses, such as the Homogeneous Malmquist bias or the lognormal distribution of peculiar velocities. The statistical uncertainty on the recovered velocity field is about 150 km s−1 depending on the location, and we study systematics coming from the selection function and calibration of distance indicators. The resulting velocity field and related density fields recover the cosmography of the Local Universe which is presented in an unprecedented volume of our Universe 10 times larger than previously reached. This methodology opens the doors to reconstruction of initial conditions for larger and more accurate constrained cosmological simulations. This work is also preparatory to larger peculiar velocity data sets coming from Wallaby, TAIPAN, or LSST. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
188. Cosmology and Cosmic Order in Islamic Astronomy.
- Author
-
Morrison, Robert G.
- Subjects
- *
ISLAMIC astronomy , *METAPHYSICAL cosmology , *FOURTEENTH century , *ASTRONOMERS , *ASTRONOMY , *PHYSICAL cosmology ,UNIVERSE - Abstract
This article analyzes how the astronomy of Islamic societies in the thirteenth and fourteenth centuries can be understood as cosmological. By studying the Arabic translations of the relevant Greek terms and then the definitions of the medieval Arabic dictionaries, the article finds that Arabic terms did not communicate order in the way implied by the Greek ho kósmos (ὁ κόσμος; the cosmos). Yet, astronomers of the period sometimes discussed cosmic order in addition to describing the cosmos. This article finds, too, that a new technical term, nafs al-amr (the fact of the matter) became part of later discussions of cosmic order. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
189. Unveiling cosmography from the dark energy equation of state.
- Author
-
Escamilla-Rivera, Celia and Capozziello, Salvatore
- Subjects
- *
EQUATIONS of state , *REDSHIFT , *ENERGY policy , *COSMOGRAPHY , *TYPE I supernovae - Abstract
Constraining the dark energy equation of state, w x (z) , is one of the main issues of current and future cosmological surveys. In practice, this requires making assumptions about the evolution of w x with redshift z , which can be manifested in a choice of a specific parametric form where the number of cosmological parameters play an important role in the observed cosmic acceleration. Since any attempt to constrain the EoS requires some prior fixing in one form or the other, settling a method to constrain cosmological parameters is of great importance. In this paper, we provide a straightforward approach to show how cosmological tests can be improved via a parametric methodology based on cosmography. Using Supernovae Type IA samplers, we show how by performing a statistical analysis of a specific dark energy parametrization can give directly the cosmographic parameters values. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
190. 'The world as we know it' – revisiting the rock art at Bergbukten 4B in Alta, northern Norway.
- Author
-
Gjerde, Jan Magne
- Abstract
The Alta rock art area in northern Norway has more than 6000 carvings made between about 5200–1BC. The focus for this paper is the Bergbukten 4B panel in Alta. With more than 200 figures this is one of the largest panels with Stone Age rock art in northern Europe. The panel holds several scenes, compositions and narratives. Studying relations between the figures and the interaction with the natural features of the rock canvas show some of the rock art refers to activities and places of activities mirroring real places. Moreover, the figures are also placed in relation to a three-tiered cosmological framework. This intertwined 'world as we know it' can be interpreted as a cosmographical knowledge of the hunter-fisher-gatherers making the rock art in the Stone Age about 6000–7000 years ago where real and imaginary landscapes were part of a cosmographical representation visualizing their 'memoryscapes' stored in the rocks. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
191. Hup bi'id ɨd: Shamanic incantation at the nexus of language and culture.
- Author
-
Epps, Patience and Ramos, Danilo Paiva
- Subjects
LANGUAGE & languages ,METAPHOR ,COSMOGRAPHY ,ONTOLOGY ,METAPHYSICAL cosmology - Abstract
In this paper, we explore the genre of shamanic incantation (bi'id ɨd) among the Hup people of the northwest Amazon. We consider the artistic features that characterize bi'id ɨd as both verbal art and powerful shamanic action – most notably the intersecting layers of parallelism, the leveraging of metaphor from both literal and figurative perspectives, and the strategic use of evidentials. We also consider the astonishingly complex taxonomy and cosmography the genre embodies, with its ontological classification of the plants, animals, and other beings within the diverse environments of the Hup world (rivercourse, forest, sky, water, etc.). As we lay out here, Hup bi'id ɨd provides an example par excellence of Sherzer's conception of discourse as the nexus of language and culture, and an illustration of the fact that a rich understanding of language and culture must make reference to both together. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
192. Extended gravity cosmography.
- Author
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Capozziello, Salvatore, D'Agostino, Rocco, and Luongo, Orlando
- Subjects
- *
COSMOGRAPHY , *TENSOR fields , *DARK energy , *MARKOV chain Monte Carlo , *GRAVITY , *CONFORMAL mapping - Abstract
2051Cosmography can be considered as a sort of a model-independent approach to tackle the dark energy/modified gravity problem. In this review, the success and the shortcomings of the Λ CDM model, based on General Relativity (GR) and standard model of particles, are discussed in view of the most recent observational constraints. The motivations for considering extensions and modifications of GR are taken into account, with particular attention to f (R) and f (T) theories of gravity where dynamics is represented by curvature or torsion field, respectively. The features of f (R) models are explored in metric and Palatini formalisms. We discuss the connection between f (R) gravity and scalar–tensor theories highlighting the role of conformal transformations in the Einstein and Jordan frames. Cosmological dynamics of f (R) models is investigated through the corresponding viability criteria. Afterwards, the equivalent formulation of GR (Teleparallel Equivalent General Relativity (TEGR)) in terms of torsion and its extension to f (T) gravity is considered. Finally, the cosmographic method is adopted to break the degeneracy among dark energy models. A novel approach, built upon rational Padé and Chebyshev polynomials, is proposed to overcome limits of standard cosmography based on Taylor expansion. The approach provides accurate model-independent approximations of the Hubble flow. Numerical analyses, based on Monte Carlo Markov Chain integration of cosmic data, are presented to bound coefficients of the cosmographic series. These techniques are thus applied to reconstruct f (R) and f (T) functions and to frame the late-time expansion history of the universe with no a priori assumptions on its equation-of-state. A comparison between the Λ CDM cosmological model with f (R) and f (T) models is reported. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
193. Oliva Sabuco de Nantes and her Nueva Filosofia: a new philosophy of human nature and the interaction between mind and body.
- Author
-
Plastina, Sandra
- Subjects
- *
HEALTH promotion , *PREVENTIVE medicine , *PHILOSOPHY of nature , *COSMOGRAPHY , *MIND & body - Abstract
The main objective of the New Philosophy was to 'improve the lives of people and nations in part by improving medical practice'. To this end, Oliva Sabuco sought to improve humankind's knowledge of the philosophical underpinnings of medicine while taking experiential practices into account. She suggested that a variety of procedures (pharmaceutical, emotional and therapeutic) should be adopted to maintain and restore harmony between the mind and body. Oliva Sabuco sought to promote health and prevent disease by expanding our knowledge of the interrelationship between mind and body; the ultimate goal was to understand the body's function and form in order to promote inner harmony and thus health. The influence of classical traditions in moral and natural philosophy, medicine, and cosmography is unmistakable in Oliva Sabuco's text, yet she synthesized these traditions, disagreed with fundamental aspects of them, and transformed them in a holistic philosophy of human nature that is part of a larger view of the cosmos and mankind's place in it. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
194. 20. YÜZYILIN İLK YARISINDA LÜBNAN'DA ARAP MİLLİYETÇİLİĞİNİN EDEBİYATÇI VE ÇEVİRMEN ÖNDERLERİNDEN BİRİSİ: FLÎKS FÂRİS.
- Author
-
SARIKAYAa, Muammer
- Subjects
- *
TRANSLATING & interpreting , *COSMOGRAPHY , *TRANSLATORS , *TRANSLATIONS , *TEXTBOOKS - Abstract
In the history of Arabic translation, there are two periods in which translation, which is seen as an individual scientific activity, is accepted as a state policy, encouraged and supported by the state, and beyond that, translators are guided by political authority. The first is the translation period, which was initiated during the reign of the Abbasid caliph 2nd Mansur and reached its peak during the caliph al-Ma'mun. The translations of this period were mainly related to medicine, cosmography, engineering and logic, and were mostly translated into Arabic through Persian and Sanskrit. Therefore, we can name the period as the period of philosophical-medical translation. The second period began in 1773 when Catholic Christian groups emigrated from France to Lebanon and established many schools there, reaching the peak during the reign of Egypt Governor of Kavalali Mehmet Ali Pasha (1805-1848). This period, which focuses on the translation of textbooks and engineering sciences of European universities into Arabic, can be named as the period of scientific translation. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
195. The World under the Stars: Astrological Geography and the Bologna 1477 Edition of Ptolemy's Cosmographia.
- Author
-
Tolias, George
- Subjects
- *
COSMOGRAPHY ,HISTORY of Bologna, Italy - Abstract
This article is a re-examination of the first complete printed edition of Ptolemy's Cosmographia (Bologna, de Lapis, 1477), hitherto considered flawed and defective. An investigation of the status and priorities of the team of court astrologers responsible for this edition, and an examination of the alterations they made to Ptolemy's maps, suggests that their aim was a redaction intentionally different from existing versions of the Geography. It is suggested that the editors sought to adjust the arrangement of provinces from that recommended in Ptolemy's Geography (book VIII) to the astrological arrangement detailed in his Tetrabiblos (book II) and that they modified the content of the key regional maps accordingly. In this light, the Bologna 1477 edition underlines the importance of assessing the reception of Ptolemy's geographical work against a cultural background in which astrology prevailed as an integrated system of knowledge, practices and beliefs. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
196. Aesthetics in Surat al-Mulk: Mathematical Typology as Metaphysical Mirror.
- Author
-
Gonzalez, Valerie
- Subjects
- *
ISLAMIC aesthetics , *COSMOGRAPHY , *PHRASEOLOGY - Abstract
Qur'an 67, Surat al-Mulk ('Surat of the Kingdom'), describes the seven heavens in a sharply contoured image. This cosmographic image is one of the few textual icons forming the 'Quranic literary iconography'. The divine light contained in a lamp within a niche in Surat al-Nur ('Surat of the Light', 24), or the glass sarh of Solomon's palace, in Surat al-Naml ('Surat of the Ants', 27), constitute other examples among these icons. This essay argues that, by means of the heavenly description, Surat al-Mulk conveys an aesthetic meaning that is pivotal to its religious rhetoric. As a complement, this study includes an examination of the surat's phraseology by the linguist Muhammad Husain Kazi. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
197. Cosmography of Generalized Ghost Dark Energy Model in f(G) Gravity.
- Author
-
Sharif, M. and Saba, S.
- Subjects
- *
SPEED of sound , *EQUATIONS of state , *GRAVITY , *PHYSICS , *COSMOGRAPHY - Abstract
This paper is devoted to construction of generalized ghost dark energy f(G) model by using correspondence scheme for both interacting and noninteracting scenarios with pressureless matter and power-law scale factor. We study the cosmological implications of the resulting model through equation of state parameter and ωDE – as well as r – s plane. We also discuss stability of the resulting model through squared speed of sound parameter. The equation of state parameter represents phantom phase of the Universe for both cases while the squared speed of sound indicates stability of this model. The ωDE – plane represents thawing region whereas r – s plane corresponds to phantom and quintessence DE regimes for both interacting and noninteracting cases. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
198. All the world's a hologram.
- Author
-
Chown, Marcus
- Subjects
- *
HOLOGRAPHY , *OPTICAL diffraction , *OPTICAL interference , *METAPHYSICAL cosmology , *COSMOGRAPHY - Abstract
The article presents a discussion about the world being a hologram. In the 1990s physicists Leonard Susskind and Nobel prizewinner Gerard 't Hooft suggested that the universe works like a hologram. It is noted that everyday experience may be a holographic projection of physical processes that take place on a distant, 2D surface.
- Published
- 2009
- Full Text
- View/download PDF
199. Spooks in space.
- Author
-
Inman, Mason
- Subjects
- *
QUANTUM theory , *METAPHYSICAL cosmology , *COSMOGRAPHY , *OBSERVABILITY (Control theory) , *ASTRONOMICAL observations - Abstract
The article discusses the significance of the quantum theory of Boltzmann brains and how the possibility of their existence effects how scientists understand the universe. Boltzmann brains are described as observers of the universe that could appear spontaneously in any location. The idea has influenced the ways in which scientists imagine the universe to behave.
- Published
- 2007
200. My other universe is a Porsche.
- Author
-
Chown, Marcus
- Subjects
- *
COSMOGRAPHY , *PHYSICISTS , *RESEARCH , *ANTHROPIC principle , *ORIGIN of life - Abstract
The article focuses on physicist Roni Harnik and his colleagues at the Stanford Linear Accelerator Center in California, who are exploring other universes. Scientific researchers have begun to believe that the universe in which humans live is not alone, but instead is one among many. Harnik's research, based on the anthropic principle, also aims to explore another universe complex enough to potentially support life. INSET: Anthropic basics.
- Published
- 2006
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