145,602 research outputs found
Sulle tracce del Sacro in Montagna — Una Panoramica
No full textÈ l'introduzione a una sezione monografica, curata dall'autore e dedicata al tema della sacralità dei monti. La sezione contiene due dialoghi con E. Camanni e M. Melchiorre, tre saggi, rispettivamente, di V. della Dora, J. Mathieu, P. Costa, e la traduzione di un classico scritto sul tema opera di H.E.M. Stutfield
Secolarizzazione: a che punto siamo?
No full textIl numero contiene un bilancio ragionato del recente dibattito sulla secolarizzazione e ospita i contributi di alcuni tra i principali esperti italiani e non italiani del tema (J. Casanova, E. Mendieta, J.C. Monod, M. Bortolini, D. Spini, H. Blumenberg). Il numero include anche la recensione dei libri di H. Joas, Come nascono i valori, curata da G. Lampredi, e P. Costa, La città post-secolare, curata da M. Bortolini
Aphyolebias Costa
No full text<p>[[Aphyolebias Costa]]</p> <p>Aphyolebias comprises seven species, all endemic to the Amazonian basin (Costa, 2003c): A. peruensis (Myers), A. wischmanni (Seegers), and A. schleseri Costa from Marañón-Ucayali-Amazonas river system, western Amazon, Peru, and A. rubrocaudatus (Seegers), A. obliquus (Costa, Sarmiento & Barrera), A. claudiae Costa, and A. manuensis (Costa) from the Madre de Dios-Beni-Mamoré-Madeira river system in Peru and Bolivia, southern Amazon.</p>Published as part of <i>Wilson J. E. M. Costa, 2004, Moema apurinan sp. n. and Aphyolebias boticarioi sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): two new annual killifishes from the Rio Purus basin, Brazilian Amazon., pp. 1-12 in Zootaxa 707</i> on page
Plesiolebias Costa
No full textPlesiolebias Costa Plesiolebias Costa, 1989 b: 193 (type species: Cynolebias xavantei Costa, Lacerda & Tanizaki, by original designation). Diagnosis. Distinguished from all other genera of Plesiolebiasini by the following unique features: posterior process of quadrate and sympletic long (vs. short) (Costa, 1998 a), interarcual cartilage absent (vs. present) (Costa, 1998 a), rays of anterior portion of anal fin longer than posterior rays (vs. longer) (Costa, 1995 a), and frontal squamation G-patterned (vs. F or D patterned) (Costa, 1998 a). Distribution. Southeastern Amazonian basin, including Xingu, Araguaia, and Tocantins river drainages, Brazil; and rio Paraguay basin, in northern Brazilian Pantanal (Fig. 13). Remarks. The systematic accounts below should be viewed as a complement to the recent taxonomic revision of Plesiolebias (Costa, 1998 c), where redescriptions of P. xavantei, P. l a c e rd a i, P. aruana, and P. glaucopterus are included.Published as part of Costa, Wilson J. E. M., 2007, Taxonomy of the plesiolebiasine killifish genera Pituna, Plesiolebias and Maratecoara (Teleostei: Cyprinodontiformes: Rivulidae), with descriptions of nine new species, pp. 1-41 in Zootaxa 1410 on page 20, DOI: 10.5281/zenodo.17556
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
O Garoto Violinista Paulo J. Costa e seu pai, Anisto J. da Costa
No full textP&B, boa nitidezPlano geral de um garoto Violinista chamado Paulo J. Costa e seu pai, Anisto J. da Costa
A new species of Elaphoglossum Schott ex J. Sm. (Dryopteridaceae) from Costa Rica
No full textUna especie nueva de Elaphoglossum Schott ex J.Sm. Dryopteridaceae) para Costa Rica.Una especie nueva de ElaphoglossumSchott ex J. Smde la sección UndulataChrist es descrita aquí: Elaphoglossum pallidosquamum A. Rojas & P. Muñoz. La nueva especie es similar a E. herpestes por su rizoma largo ascendente, pero difiere por escamas del rizoma no cordadas basalmente (vs. cordadas) y más pálidas pardo-amarillentas con margen blanquecino o completamente blanquecinas (vs. castañas), escamas del estípite adpresas (vs. adpresas a moderadamente patentes) y más densas, lámina más angosta 2.5-4 cm de ancho (vs. 5-6.5 cm) con base anchamente cuneada a obtusa (vs. redonda), lámina con diferentes tipos de escamas las costales imbricadas (vs. distantes entre sí), escamas adaxiales densas (vs. dispersas), escamas abaxiales enrrolladas y moderadamente densas (vs. escamas abaxiales planas y dispersas) y, escamas marginales muy densas (vs. moderadamente densas a dispersas) y estas más pálidas blanquecinas a amarillo pálido (vs. pardas).A new species of ElaphoglossumSchott ex J. Sm of section Undulata Christ is described here: Elaphoglossum pallidosquamum A. Rojas & P. Muñoz. The new species is similar to E. herpestes because of its long ascending rhizome, but differs by its not chordate (vs. chordate) basally and paler rhizome scales brown-yellowish with whitish margin or fully whitish (vs. castaneous), appressed (vs. appressed to moderately patent) and more dense stipe scales, narrower blade 2.5-4 cm broad (vs. 5-6.5 cm) with broadly cuneate to obtuse base (vs. rounded), blade with different scale types costa with imbricate scales, dense and flat adaxial scales, moderately dense and enrolled abaxial scales and very dense marginal scales (vs. all scales similar except for denser in midvein) and they are paler whitish to pale yellow (vs. brown).Universidad Nacional, Costa RicaEscuela de Ciencias Biológica
Letter from Carl Hayden to P. J Moran
No full textLetter from Carl T. Hayden to P. J. Moran concerning the alignment of the road to Bright Angel Trail
Moema apurinan Costa
No full text<p>[[Moema apurinan Costa]]</p> <p>Discussion</p> <p>Relationships among species of Moema and Aphyolebias are still unclear. Most characters used to diagnose species (e.g., number of vertebrae, number of anal and pectoral-fin rays, caudal-fin shape, presence of organs of contact on male scales, width of the basihyal and the rostral cartilage, and color patterns) are variable among potential outgroups to both genera (i.e., putative closely related genera, Micromoema Costa, 1998, Renova Thomerson & Taphorn, 1995, Trigonectes Myers, 1925, Neofundulus Myers, 1924, Pterolebias Garman, 1895, Gnatholebias Costa, 1998) (Costa, 1998, 2003b, d). For example, the reduced number of vertebrae in Moema apurinan and M. staecki, with a total of 33-35 vertebrae, is within the range of most species of closely related genera, which have 29-34 vertebrae, but contrasts with the remaining species of Moema which possess 36-39 vertebrae. This suggests that all species of Moema except Moema apurinan and M. staecki form a monophyletic unit defined by higher vertebra counts.</p>Published as part of <i>Wilson J. E. M. Costa, 2004, Moema apurinan sp. n. and Aphyolebias boticarioi sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): two new annual killifishes from the Rio Purus basin, Brazilian Amazon., pp. 1-12 in Zootaxa 707</i> on page 1
- …
