124,332 research outputs found
Miranda Revisited
No full textRansiek A. Miranda Revisited. In: Hellmann U, Schröder C, eds. Festschrift für Hans Achenbach. Heidelberg: C. F. Müller; 2011: 359-371
Viajantes ex-cêntricas nas histórias de Ana Miranda
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Literatura.No conjunto das narrativas ficcionais da escritora brasileira Ana Miranda, a temática da viagem # considerada uma das mais férteis da literatura ocidental de todos os tempos # ocupa um espaço de centralidade, podendo até mesmo ser vista como o mais importante eixo de estruturação de suas obras. O estudo realizado pela presente tese tem por objetivo analisar o tratamento dado ao tema da viagem nos romances Desmundo, O retrato do rei, Dias & Dias e Amrik, evidenciando que por intermédio das narradora-viajantes # Oribela, Mariana, Feliciana e Amina # a autora promove um diálogo entre diferentes culturas, gêneros, etnias e gerações, ao mesmo tempo em que estabelece um profícuo diálogo com o passado em sua invariante problematização concernente aos limites e cruzamentos entre o discurso ficcional e os discursos narrativos extraliterários que o cercam, sobretudo o histórico e o biográfico. In the whole of Brazilian writer Ana Miranda#s fictional narrative, the travel thematic # considered one of the most fertile themes of the western literature of all times # occupies a central space, and can even been seen as the most important structuring axis of Miranda#s works. The aim of the present thesis is to analyze the treatment given to the travel subject in the novels Desmundo, O retrato do rei, Dias & Dias and Amrik, emphasizing that, through the traveling narrators, Oribela, Mariana, Feliciana and Amina, the author promotes a connection between different cultures, genders, ethnics and generations, at the same time that establishes a profitable dialogue with the past in her invariant problematization concerning the limits and crossings between the fictional and the extra-literary narrative discourses that surrounds it, mainly the historical and the biographic ones
Miranda en la revolución francesa : colección de documentos auténticos referentes a la historia del General Francisco de Miranda, durante su permanencia en Francia de 1792 a 1798
No full textXXIV, 396 p., 2 f. ; 24 cm + 1 retratoNa port.: "Ed. oficial, cotejada con el original en 1810, publicada en Londres por orden del General Miranda, arreglada...; aumentada con documentos que no figuran en la ed. de 1810 ; enriquecida con un apéndice en el cual se hallan apreciaciones acerca de Miranda de historiadores franceses...; y precedida de un prefacio por Arístides Rojas... Ed. castellana
Error estimation by compatibility in patches for plate structures
No full textError estimation is a key tool in modern finite element technology in order to verify and validate the finite element simulations, as well as to improve results and control the error, when combined with adaptivity. An efficient and practical way to derive a posteriori error estimators is offered by recovery procedures. The error, generally in stress based norms, is estimated by comparing the original finite element solution with the recovered one. The major steps forward in using recovery procedures were taken with the Superconvergent Patch Recovery (SPR) developed by Zienkiewicz and Zhu [1] and the Recovery by Equilibrium in Patches (REP) developed by Boroomand and Zienkiewicz [2]. Both these procedures have been successfully applied to plate problems in [3]. Recently, a new superconvergent procedure called Recovery by Compatibility in
Patches (RCP) has been proposed by one of the authors [4] and shown to provide an excellent basis for error estimation in 2D problems [5].
Thin structures like plates and shells constitute an important class among finite element analyses because of their large application fields. With this in mind, the aim of the present paper is to develop an extension of the RCP-based error estimation to Reissner-Mindlin plates finite element analysis. The basic idea of this procedure is the same as the RCP in its original version, that is to recover stress resultants by enforcing compatibility over patches of elements.
Displacements computed by the finite element analysis are prescribed on the boundary of the patch, and improved stress resultants are computed by minimizing the complementary energy of
such a sub-model. The resulting procedure is simple, efficient, numerically stable and does not need any knowledge of superconvergent points. Some numerical examples involving thin and thick plates under different loading and support conditions are given.
References
[1] Zienkiewicz OC, Zhu JZ, The superconvergent patch recovery and a posteriori error estimates. Part I: The recovery technique, International Journal for Numerical Methods in Engineering, 33, 1992, 1331–1364.
[2] Boroomand B, Zienkiewicz OC, An improved REP recovery and the effectivity robustness test, International Journal for Numerical Methods in Engineering, 40, 1997, 3247–3277.
[3] Boroomand B, Ghaffarian M, Zienkiewicz OC, On application of two superconvergent recovery procedures to plate problems, International Journal for Numerical Methods in Engineering, 61, 2004, 1644–1673.
[4] Ubertini F, Patch recovery based on complementary energy, International Journal for Numerical Methods in Engineering, 59, 2004, 1501–1538.
[5] Benedetti A, de Miranda S, Ubertini F., A posteriori error estimation based on the superconvergent Recovery by Compatibility in Patches, International Journal for Numerical Methods in Engineering, in press
Spatial modeling of bicycle activity at signalized intersections Jillian Strauss, Luis F Miranda-M
No full textJTLU vol. 6 no. 2 pp. 47-58 (2013)This paper presents a methodology to investigate the link between bicycle activity and built environment, road and transit network characteristics, and bicycle facilities while also accounting for spatial autocorrelation between intersections. The methodology includes the normalization of manual cyclist counts to average seasonal daily volumes (ASDV), taking into account temporal variations and using hourly, daily, and monthly expansion factors obtained from automatic bicycle count data. To correct for weather conditions, two approaches were used. In the first approach, a relative weather ridership model was generated using the automatic bicycle count and weather data. In the second approach, weather variables were introduced directly into the model. For each approach, the effects of built environment, road and transit characteristics, and bicycle facilities on cyclist volumes were determined. It was found that employment, schools, metro stations, bus stops, parks, land mix, mean income, bicycle facility type (bicycle lanes and cycle tracks), length of bicycle facilities, average street length, and presence of parking entrances were associated with bicycle activity. From these, it was found that the main factors associated with bicycle activity were land-use mix, cycle track presence, and employment density. For instance, intersections with cycle tracks have on average 61 percent more cyclists than intersections without. An increase of 10 percent in land-use mix or employment density would cause an increase of 8 percent or 5.3 percent, respectively, in bicycle flows. The methods and results proposed in this research are helpful for planning bicycle facilities and analyzing cyclist safety. Limitations and future work are discussed at the end of this paper.Strauss, Jillian; Miranda-Moreno, Luis. (2013). Spatial modeling of bicycle activity at signalized intersections Jillian Strauss, Luis F Miranda-M. Retrieved from the University Digital Conservancy, 10.5198/jtlu.v6i2.296
Recombination modulates how selection affects linked sites in Drosophila
No full textOne of the most influential observations in molecular evolution has been a strong association between regional recombination rate and amount of nucleotide polymorphism in those genomic regions, interpreted as evidence for ubiquitous natural selection. The alternative explanation, that recombination is mutagenic, has been rejected by the absence of a similar association between regional recombination rate and nucleotide divergence between species. However, many recent studies show that recombination rates are often very different even in closely related species, questioning whether an association between recombination rate and divergence between species has been tested satisfactorily. To circumvent this problem, we directly surveyed recombination across approximately 43% of the D. pseudoobscura physical genome in two separate recombination maps, and 31.3% of the D. miranda physical genome, and we identified both global and local differences in recombination rate between these two closely related species. Using only regions with conserved recombination rates between and within species and accounting for multiple covariates, our data support the conclusion that recombination is positively related to diversity because recombination modulates hitchhiking in the genome. Finally, our data show that diversity around nonsynonymous substitutions is recovered at closer distances in areas of higher recombination than in areas of lower recombination — empirically demonstrating that recombination rate can limit the size and severity of potential selective sweeps
Ananteris canalera Miranda & de Armas 2020, sp. n.
No full textAnanteris canalera sp. n. (Figures 1–9, Table 1). ttp: //zoobank. org/urn: lsid: zoobank. org: act: FE6CB237 -3D82-4BBD-828D-043DD85C02AA Ananteris sp. Teruel & Cozijn, 2011: 2, fig. 1. TYPE LOCALITY AND TYPE REPOSITORY. Panama, Panama Oeste Province, Capira, Trinidad de las Minas; ICGES. TYPE MATERIAL. Panama, Panama Oeste Province, Capira, Trinidad de las Minas, 1♀ (holotype) (CoZEM-ICGES), 4 April 2019, R. Miranda & J. Lezcano. Capira, 2♂ 3♀ (paratypes) (IESC), 21 November 2017, R. Miranda, I. Murgas, G. García & G. González; 1♂ 2♀ (paratypes) (ICGES), 20 November 2017, R. Miranda, I. Murgas, G. García & G. González; 1♀ (paratype) (ICGES), 14 August 2019, R. Miranda & I. Murgas. Trinidad de las Minas, 1♂ (paratype) (ICGES), 24 August 2019, R. Miranda & J. Lezcano. Trinidad Arriba, 1♂ (paratype) (ICGES), 9 March 2018, R. Miranda, I. Murgas, J. Lezcano & G. García; 1♀ (paratype) (ICGES), 14 August 2018, R. Miranda, J. Lezcano, L. Domínguez, Gino Fatacioli. Aguacate, 1♂ (paratype) (ICGES), 15 August 2018, R. Miranda, J. Lezcano, L. Domínguez. Majara, 1♂ (paratype) (ICGES), 22 November 2017, R. Miranda, I. Murgas, G. García & G. González. Chame, Chicá, Parque Nacional Altos de Campana, 2♀ (paratypes), 21 September 2017, R. Miranda, I. Murgas, J. Lezcano, G. García. OTHER MATERIAL EXAMINED (not paratypes). Panama, Panamá Oeste Province, Polanco, 8♂ 7♀, 20-21 November, 2017, R. Miranda, I. Murgas, G. García & G. González (ICGES); 1♀, 22 March, 2018, I. Murgas, G. García, J. Lezcano (ICGES). Trinidad de las Minas, 1♀, 8 March 2018, R. Miranda, I. Murgas, G. García and J. Lezcano (ICGES); 2♂ 3♀, 21- 28 August, 2018, R. Miranda, L. Domínguez & J. Lezcano (ICGES). Trinidad Arriba, 1♂ 1♀, 9-15 March 2018, R. Miranda, I. Murgas, J. Lezcano & G. García (ICGES). Majara, 4♂, 22 November, 2017, R. Miranda, I. Murgas, G. García & G. González (ICGES). Parque Nacional Altos de Campana, 3♂ 1♀, 18-21 September, 2017, R. Miranda, I. Murgas, J. Lezcano, G. García. ETYMOLOGY. The specific name is an adjective that commonly refers to the inhabitants of Panama. DIAGNOSIS. A medium-sized species among its congeneric, from which it differs by the following unique combination of features: Carapace weakly, evenly biconcave and lacking anteromedian projection; metasomal carinal formula 10:10:10:8:5, with all carinae complete; pectines have 17–20 teeth (female 17–18, male 18–20); sternites III–V are smooth, VI bears few weak granules laterally, VII is densely and finely granulose, III and V without whitish smooth areas in the male; fixed finger trichobothria in the order eb: esb: db: est: et: dt, with est slightly distal to db (Fig. 9); male telson similar to that of the female, but smoother; hemispermatophore with pars recta clearly wider than pars reflexa (Fig. 5). Its closest relative seems to be A. platnicki, from which it differs by the structure of male hemispermatophore (Fig. 4), and having only minor sexual dimorphism, whereas in A. platnicki the male has the telson (Fig. 2) and pedipalps elongate. It also differs from the Colombian Ananteris leilae Lourenco, 1999 by its larger size, higher pectinal tooth count (15–16 teeth in A. leilae), telson slightly globose, and chelicerae with a different color pattern. Hemispermatophore of A. canalera sp. n. resembles that of Ananteris columbiana (see Botero & FlÓrez, 2011: fig. 61), but the Colombian species has most attenuate pedipalps and telson. DESCRIPTION OF THE FEMALE Coloration. Yellowish with variegated pigmentation over almost the entire body and appendages (Figs. 1, 6–8). Carapace predominantly brown with some yellow spots (Figs. 1, 5); median ocular tubercle black, surrounded by brown spot. Chelicerae hand with dense and complete brown reticular pattern on dorsal view (Fig. 6); fingers almost completely brownish. Coxosternal region yellow with vestigial variegated pigmentation; genital operculum, pectinal basal piece and pectines, immaculate yellow; sternites III–VI mostly yellow, vestigially spotted in lateral and posterior submargins; sternite VII most darkened. Tergites primarily brown (Fig. 1); each side of tergites I–VI with two marginal slender yellow stripes; two longitudinal submedian yellow stripes crossing tergites I–VI are limited to the posterior one-third of each segment; each side of tergites I–VI with two transverse yellow lines converging near the axial line, arrow-like; tergite VII mostly brown dorsally, with small yellow regions dorsally and laterally. Metasoma predominantly yellowish to reddish (Fig. 7); dorsal intercarinal spaces of segments I–III with a median brown design wider anteriorly, arrow-like (Fig. 8); all segments with variegated pigmentation on all surfaces and carinae; segment V darker (Fig. 7). Telson vesicle pale yellow orange, laterally spotted with brown. Pedipalp trochanter predominantly yellow, with a dorsal quadrate mark; femur and patella mainly brownish (Fig. 6), dorsally darker; trichobothrial pits surrounded by yellow areas; chela with hand uniformly yellow; fingers light brown. Legs with variegated pigmentation, brown spots on all segments except for the tarsomere II, which is completely yellow. Carapace. Densely covered with fine rounded granules, mostly on the brown areas; anterior margin very slightly bi-concave, without a definite median projection (Fig. 6); superciliary carinae moderately strong and subgranulose, others inconspicuous. Median ocular tubercle on the posterior half of the anterior third of the carapace; median eyes separated by almost an ocular diameter. Furrows: anterior median, central median, posterior median, posterior marginal and posterior lateral evident, moderately deep; median ocular furrow wide and deep, mostly smooth, with rudimentary granules posteriorly to the eyes. Chelicerae. Dentition characteristic of the family Buthidae (Vachon, 1963). Movable finger dorsally with two small basal teeth, one median (the largest), one subdistal and one distal tooth; ventrally with three moderately strong teeth: one basal, one median (slightly smaller than the basal), and one distal tooth. Fixed finger dorsally with one basal and one median tooth forming a bicuspid, one subdistal, and one distal tooth. Ventrally with one subdistal tooth. Coxosternal region. Smooth, scarcely setose; sternum type 1, subtriangular, with deep and wide posterior depression that reaches the “apical button”, with two pairs of small lateral setae; coxapophyses I–II with numerous anterior setae. Pectines. Long, almost reaching the posterior end of coxae IV, with vestigial fulcra; pectinal basal piece slightly wide than long, deeply notched anteriorly and strongly convex posteriorly. Sternites: with abundant short and translucent setae; III–VI smooth; VII finely and densely granulose, with short and finely granulose paramedian carinae, lateral carinae absent; spiracles elongated, approximately 1.5 longer than wide in III–V and 2.0 times longer than wide in VI. Tergites. Granulation similar to that of carapace; tergites III–VI with median carina that only occupies the posterior half of each plate; tergite VII tetracarinate, and granulose anteromedian elevation on the position of the median carina. Metasoma. Scarcely setose. Segments I–III with 10 carinae, IV with eight, and V with five; lateral inframedian carinae on III rudimentary, only evident on the basal one-half of the segment; dorsal lateral carinae converge distally on segments I–III, and also ending in a larger distal granule on II-IV; all carinae minutely serrulate; intercarinal spaces with granulations. Telson (Fig. 3): vesicle lightly elongated; lateral surfaces mostly smooth, except for some vestigial granules towards the ventral surface; ventrally with three poorly developed longitudinal carinae composed by low and large granules; subaculear tubercle strong and spine-like; aculeus long and curve. Pedipalps. femur with five longitudinal carinae; dorsal surface coriaceous, with some disperse small granules. Patella without well-defined carinae, with some moderate granules on the internal surface. Chela acarinate; fingers with six almost linear rows of denticles, being the basal the longest; also, on the movable finger there is a short apical row of four denticles (it is considered by some authors as a seventh row). Trichobothriotaxy type A, femur with β configuration (Vachon 1974, 1975); fixed finger trichobothria in the order eb: esb: db: est: et: dt, with est slightly distal to db (Fig. 9). Measurements (Table 1). Legs: tarsomeres I and II with numerous ventral setae; tibial spur on legs III–IV; prolateral pedal spur single on legs I–II, bifid on III–IV; retrolateral pedal spur present on all legs. DESCRIPTION OF THE MALE. Similar to female, from which it differs in the following characters: smaller in size; pectines longer, slightly reaching beyond the posterior end of coxae IV, with higher tooth counts (18 – 20); and telson not elongated (Fig. 2), but slightly most attenuate (vesicle twice as long as wide). Measurements (Table 1). Hemispermatophore (description based on two specimens from Capira, Majara). Flagelliform, thin and poorly sclerotized. Foot narrow and flat. Pedal flexure inconspicuous but movable. Body very long. Capsular region located near the middle of the body, with two lobes, the basal and the internal subequal and strong. Flagellum with long pars recta, wider than the curved but not coiled pars reflexa (Fig. 5). Carapace length to hemispermatophore body length ratio = 1:2. There was no variation between the two hemispermatophores examined. VARIABILITY. Pectinal teeth count: 17 to 20 on males (n = 23; mode = 18); 16 to 19 on females (n = 17; mode = 17 and 18). Total body length (including telson): male 21–24 mm, female 25–30 mm. No variation was observed in the trichobothrial pattern on the pedipalp fixed finger. ANOMALIES. One female paratype (IES) has only 11 teeth on the left comb, but it lacks the distal piece of the marginal lamella (a similar case was recorded for a male of Ananteris solimariae by Botero-Trujillo & FlÓrez, 2011: 32); such anomalies may be congenic or due to postembryonic accident. One male has four rows of granules in the movable finger of left pedipalp (lacks the apical part). NATURAL HISTORY. This species is associated with soil and leaf litter in areas of secondary forest or scrubland. It is sympatric with Centruroides granosus (Thorell, 1876) and Tityus tayrona Lourenco, 1991. Births have been registered in May-June (n = 5) and October to December (n = 6). Average litter size 18 (n =14, range = 4–31). DISTRIBUTION. Panama, Panama Oeste province, at several locations from Capira and Chame districts (Fig. 1).Published as part of Miranda, Roberto J. & de Armas, Luis F., 2020, A new species of Ananteris (Scorpiones: Buthidae) from Panama, pp. 1-7 in Euscorpius 297 on pages 2-5, DOI: 10.5281/zenodo.464826
Postfazione al volume Migrazioni Diritto e Società
No full textThe post-faction re-consider the chapters of the book in a critical manner, explaining the point of view of the author of the post-faction
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