1,792,607 research outputs found
Lagusia Vari 1978
No full textLagusia Vari, 1978 Lagusia Vari, 1978: 523. Type species. — Datnia micracanthus Bleeker, 1860; by original designation. Diagnosis. — The presence of stripes on the body in small to midsized specimens and the lack of a direct attachment of the extrinsic swimbladder muscle to the rear of the neurocranium serve in combination to delimit Lagusia from all other genera of the Terapontidae. Lagusia is furthermore delimited externally from other members of the family by the distinctive pattern of dark pigmentation on the caudal fin in mid- and large-sized specimens consisting of a dark basal bar continuous ventrally with a band of dark pigmentation extending along the ventral rays of the lower lobe of the caudal fin (Fig. 1). Phylogenetic placement. — Vari (1978: Fig. 9) proposed that Lagusia was a relatively basal member of the Terapontidae (the Teraponidae of that study), but that hypothesis was complicated by the lack of cleared and stained preparations of the species. Dissections and examination of two cleared and stained specimens in this analysis have confirmed the presence in the genus of the characters supporting that placement of the genus within that phylogeny (see character summaries in Vari, 1978). Of particular note is the presence in the genus of the well developed extrinsic swimbladder muscle running anteriorly to the posttemporal, a feature synapomorphic for the family. The muscle in Lagusia is a simple mass with an attachment anteriorly to the posterior of the posttemporal common across the Terapontidae, but lacking the medial connective tissue attachment of the anterior part of the muscle and the posterior of the neurocranium present in the majority of genera of the Terapontidae. The absence of this medial connective tissue band is limited to five basal genera in the family, all of which interestingly are restricted to brackish and freshwaters of Australia, New Guinea and Sulawesi, contrary to the broader distribution of the rest of the Terapontidae, many species of which are broadly distributed in marine waters from East Africa to Fiji.Published as part of Vari, Richard P. & Hadiaty, Renny Kurnia, 2012, The Endemic Sulawesi Fish Genus Lagusia (Teleostei: Terapontidae), pp. 157-162 in Raffles Bulletin of Zoology 60 (1) on page 158, DOI: 10.5281/zenodo.534717
STUDI STORICI LUIGI SIMEONI vol.63,pp.164
No full textVari autori intervengono con articoli su tematiche specifiche della tematica general
VJ-Ulaganathan/TraPS-VarI: Binaries for TraPS-VarI python module
No full text<p>TraPS VarI is a tool to identify membrane-proximal tyrosine-based sequence motifs YxxQ, where Y is tyrosine, Q is glutamine and x any amino acid. It is a python based module for predicting germline receptor variants of single-pass transmembrane proteins potentially capable of modulating in a genotype-dependent manner, the STAT3 signaling and drug sensititiviy to growth inhibition (Ulaganathan et al, 2015; doi:10.1038/nature16449). The algorithm requires single nucleotide polymorphism genotyping datasets in Variable Call Format 4.0 as input. Additionally, the tool finds for associated membrane proteins, all the matching therapeutic target database and DrugBank records.</p>
<p>For Source code and Documentation, Please Visit: <a href="http://traps-vari.readthedocs.io/">http://traps-vari.readthedocs.io/</a></p>
Vari disegni de arghitettura ornati de porte /
No full textEngraved throughout. Title, leaf [1]. Coat of arms of Cardinal Borghese, leaf [2], the dedication to whom appears on leaf [3].Mode of access: Internet.Binding: later marbled paper, backed in vellum. Title & author written on spine.Bound with: Disegni varii di depositi / Bernardino Radi (Rome, 1619).In Getty copy the upright of the G in title word "arghitettura" effaced to make a C
Cetopsidiini De Pinna & Ferraris & Vari 2007, NEW TRIBE
No full textTRIBE CETOPSIDIINI, NEW TRIBE <p> <i>Type genus</i>: <i>Cetopsidium</i> Vari, Ferraris & de Pinna, 2005</p> <p> <i>Diagnosis</i> (Br: 3, jk: 93,bs: 91):</p> <p>Uncinate process of first hypobranchial longer than free anterior margin of bone (65);</p> <p> Third hypobranchial with long axis oblique relative to basibranchial series (69, reversed in <i>Cetopsidium orientale</i> and convergent in <i>Denticetopsis sauli</i>)</p> <p> Presence of transverse radial anterior to anal-fin pterygiophores (109, convergent with <i>Cetopsis</i> and subsequently reversed in <i>C. amphiloxa</i>);</p> <p> Lateral line not reaching past vertical through posterior terminus of anal-fin base (127, State 2, convergent with <i>Denticetopsis sauli</i> and the outgroup species <i>Nematogenys inermis</i>);</p> <p> <i>Included genera</i>: <i>Cetopsidium</i> Vari, Ferraris and de Pinna, 2005</p> <p> Genus <i>Cetopsidium</i> Vari, Ferraris and de Pinna, 2005</p> <p> <i>Cetopsidium</i> Vari, Ferraris and de Pinna, 2005 (type species: <i>Pseudocetopsis orientale</i> Vari, Ferraris and Keith, 2003).</p> <p> <i>Diagnosis</i>: As for the tribe.</p> <p> <i>Included species</i>: <i>Cetopsidium ferreirai</i> Vari, Ferraris, and de Pinna, <i>C. minutum</i> (Eigenmann) (Fig. 35), <i>C. morenoi</i> (Fernández-Yépez), <i>C. orientale</i> (Vari, Ferraris, and Keith), <i>C. pemon</i> Vari, Ferraris, and de Pinna, and <i>C. roae</i> Vari, Ferraris, and de Pinna.</p>Published as part of <i>De Pinna, Mário C. C., Ferraris, Carl J. & Vari, Richard P., 2007, A phylogenetic study of the neotropical catfish family Cetopsidae (Osteichthyes, Ostariophysi, Siluriformes), with a new classification, pp. 755-813 in Zoological Journal of the Linnean Society 150 (4)</i> on page 802, DOI: 10.1111/j.1096-3642.2007.00306.x, <a href="http://zenodo.org/record/5431716">http://zenodo.org/record/5431716</a>
MUTAGENESI AMBIENTALE
No full textIl testo, primo nel suo genere in Italia, si prefigge di fornire una panoramica dei vari aspetti della materia. Nella prima parte, "Le conoscenze di base", si fa particolare riferimento alla natura e ai meccanismi di insorgenza dei vari tipi di mutazione, alla caratterizzazione degli agenti chimici e fisici oggetto delle principali esposizioni umane e alle mutazioni in cellule somatiche e germinali, ormai riconosciute causa significativa di malattie genetiche nell’uomo.
Nella seconda parte, "Le applicazioni", vengono illustrati i principali test di mutagenesi in vitro ed in vivo e il loro impiego nel monitoraggio di matrici ambientali (aria, acqua, suolo) e di popolazioni umane, tutte metodologie volte alla valutazione del rischio somatico (cancerogeno) e genetico in seguito ad esposizione umana ad agenti genotossici. Sono quindi trattati gli aspetti legislativi, in ambito italiano ed europeo correlati con la valutazione del rischio mutageno. Infine si illustrano le possibilità di contrastare con interventi di chemioprevenzione il processo di mutagenesi nonché quello di cancerogenesi.
Nella stesura del testo sono stati coinvolti quasi tutti i più accreditati centri italiani che si occupano di mutagenesi ambientale, nelle persone sia dei ricercatori che lavorano nel settore da diversi anni, sia dei docenti che la insegnano negli atenei dove questa materia è oggi contemplata in molti corsi di studio universitari e post-universitari.
L’opera si rivolge primariamente agli studenti universitari, ma può essere utilizzata anche come testo di consultazione da coloro che per motivi professionali hanno necessità di ampliare le loro conoscenze in tema di mutagenesi ambientale
Cyphocharax sanctigabrielis Melo & Vari 2014, new species
No full textCyphocharax sanctigabrielis, new species Fig. 1 Holotype. MZUSP 115004, 60.7 mm SL, Brazil, Amazonas, São Gabriel da Cachoeira, Igarapé Nouba Uba, near BR-307 road, upper rio Negro, Amazon basin, 00°00.321’N 66°55.357’W, 9 Aug 2008, C. Oliveira, M. I. Taylor, M. A. Alexandrou & J. I. R. Porto. Paratypes. LBP 6963, 6, 44.3-67.0 mm SL (tissues 33399 and 33400); collected with holotype. Diagnosis. Cyphocharax sanctigabrielis is distinguished from all other species of Cyphocharax by the presence on the lateral surface of the caudal peduncle of a distinct, longitudinally elongate, posteriorly often vertically expanded, darkly pigmented mark extending anteriorly from the base of the median caudal-fin rays to the vertical through the posterior limit of the base of the adipose fin. Dark pigmentation on the caudal peduncle is absent in C. abramoides, C. aspilos, C. derhami, C. festivus, C. leucostictus, C. magdalenae, C. microcephalus, C. multilineatus, C. nigripinnis, C. notatus, C. pinnilepis, C. plumbeus, C. stilbolepis, and C. vexillapinnus. When present, the dark pigmentation in that region in other congeners can alternatively be rotund (C. gangamon, C. gillii, C. gouldingi, C. helleri, C. mestomyllon, C. oenas, C. punctatus, C. spiluropsis, and C. vanderi), somewhat triangular with its posterior border darker (C. meniscaprorus), a vertically oriented ellipsoid (C. aninha), in the form of an elongate stripe (C. laticlavius, C. modestus, C. nagelii, and C. pantostictus) or longitudinally ovoid but terminating anteriorly distinctly posterior to the vertical through the posterior limit of the base of the adipose fin (C. biocellatus, C. gilbert, C. saladensis, C. santacatarinae, C. signatus, C. spilotus, C. spilurus, and C. voga). Cyphocharax sanctigabrielis can be further diagnosed from various congeners by the absence of a series of dark stripes or spots running between the scale rows (vs. the presence of such dark pigmentation in C. helleri, C. multilineatus, and C. pantostictus), the absence of two to eight dark spots distributed along the midlateral surface of the body (vs. the presence of such pigmentation in C. biocellatus, C. punctatus, and C. vanderi), the absence of a patch of dark pigmentation on the dorsal or adipose fins (vs. the presence of such pigmentation in C. nigripinnis, C. notatus and C. vexillapinnus) and a non-fleshy upper lip (vs. lip very fleshy in C. mestomyllon). Cyphocharax sanctigabrielis can be meristically further distinguished from various other congeners by the possession of 31 pored scales along the lateral line from the supracleithrum to the hypural joint (vs. four to nine pored scales in C. aninha, C. saladensis and C. signatus, 27 in C. vanderi, 27 or 28 in C. gangamon and in sum 32 to 97 in C. abramoides, C. aspilos, C. gilbert, C. leucostictus, C. magdalenae, C. nagelii, C. nigripinnis, C. pinnilepis, C. platanus, C. santacatarinae, C. stilbolepis, and C. voga), the presence of 9 branched dorsal-fin rays (vs. 10 to 12 in C. spilotus), and the possession of 30 or 31 vertebrae (vs. 28 or 29 in C. vanderi and 32 to 37 in C. abramoides, C. aspilos, C. gilbert, C. modestus, C. nagelii, C. notatus, C. platanus, C. santacatarinae, C. stilbolepis, and C. voga). Morphometric ratios and counts serve to further discriminate C. sanctigabrielis from various congeners (for comparative data see Vari, 1992a; Vari & Blackledge, 1996; Vari & Chang, 2006; Vari et al., 2010, 2012). Description. Morphometric data presented in Table 1. Body moderately elongate; elongation more pronounced in larger specimens. Dorsal profile of head convex from margin of upper lip to vertical through anterior nares, nearly straight from that point to posterior terminus of head. Dorsal profile of body slightly convex from tip of supraoccipital spine to dorsal-fin origin; straight to slightly convex and posteroventrally-slanted from base of last dorsal-fin ray to adipose-fin origin and then slightly concave to origin of anteriormost dorsal procurrent ray. Dorsal surface of body with barely apparent median ridge anterior to dorsal-fin base and transversely rounded posterior to fin base. Ventral profile of head very slightly convex to nearly straight from margin of lower lip to isthmus. Ventral profile of body smoothly convex from isthmus to pelvic-fin origin, convex from that point to rear of anal-fin base and then slightly concave to origin of anteriormost ventral procurrent ray. Prepelvic region smoothly flattened transversely, with midventral series of scales comparable in size to those on adjoining portions of body. Postpelvic region of body transversely rounded. Dorsal fin pointed, with distal margin straight and first and second branched rays longest. Pectoral-fin profile pointed. Tip of adpressed pectoral fin falls four or five scales short of vertical through pelvic-fin origin. Pelvic fin profile pointed. Tip of adpressed pelvic fin falls one or two scales short of anus. Caudal fin forked with tips of lobes somewhat pointed. Adipose fin well developed. Anal fin emarginate with first branched ray longest and about three times length of ultimate ray. Tip of adpressed anal fin falls five or six scales short of point of origin of ventral most caudal-fin ray. Head profile anteriorly pointed overall from lateral view, but rounded in region of mouth and snout. Upper jaw very slightly longer than lower jaw with mouth slightly subterminal or jaws equal. Nostrils very close; anterior circular to ovoid, posterior crescent-shaped with aperture closed by thin flap of skin separating nostrils. Adipose eyelid well developed and extending posteriorly onto anterodorsal portion of opercle. Smaller specimens with central aperture in adipose eyelid round and approximately corresponding to limits of pupil. Opening in larger individuals vertically-ovoid with eyelid overlapping anterior and posterior portions of pupil. All scales of lateral line pored with primary laterosensory canal straight. Pored lateral-line scales from supracleithrum to hypural joint 31* (7). Pored scales on basal portions of caudal fin posterior to hypural joint 2* (5) or 3 (2). Scales in transverse series from dorsal-fin origin to lateral line 5* (6) or 5½ (1). Scales in transverse series from anal-fin origin to lateral line 4*(3), 4½ (3) or 5 (1). Scales between anus and anal-fin origin 2* (6) or 3 (1). Middorsal series of scales from rear of supraoccipital spine to dorsal-fin origin 9* (6) or 10 (1). Smaller individuals lacking scales over caudal-fin lobes. Midsized and larger specimens with field of adherent scales continuing posteriorly onto basal portion of each caudal-fin lobe. Anterior scales similar in size to those on posterior portion of caudal peduncle. Adherent scales present over basal portions of pelvic fin; scales primarily covering last unbranched fin-ray. Dorsal-fin rays iii,9* (7), with first unbranched ray very short. Anal-fin rays ii,7* (3) or iii,7 (4), with first ray very short when three unbranched rays present. Pelvic-fin rays ii, 9* (7). Pectoral-fin rays 14 (1) or 15* (6). Total vertebrae 30 (1) or 31* (6). Coloration in alcohol. Ground coloration of specimens fixed in alcohol brownish; those fixed in formalin yellowish. Overall coloration of larger specimens retaining guanine on scales silvery or silvery golden. Dusky surface coloration darker on dorsal portion of head; head dusky dorsolaterally and light colored ventrally. Chromatophores on postorbital region of head slightly larger than those on snout other than in area posterior of orbit overlapped by adipose eyelid. Overall pigmentation of that portion of postorbital region consequently somewhat lighter than that of adjoining areas. Dusky surface coloration darker on dorsal and dorsolateral regions of body. Ground coloration of body more yellowish ventrally. Dusky surface coloration darker on dorsal and dorsolateral regions of body. Ground coloration of body more yellowish ventrally. Deep-lying, dark chromatophores forming faint, dusky midlateral stripe on body. Stripe most evident posterior of vertical through base of ultimate dorsal-fin ray and with posterior section of stripe slightly expanded vertically. Stripe continues to anterior margin of patch of dark pigmentation on midlateral surface of caudal peduncle. Middorsal region of body with series of small dark chromatophores running from tip of supraoccipital spine to anterior border of adipose fin, darker than adjoining areas. Scales on dorsal and dorsolateral regions of body with dark central regions. Light versus dark regions cumulatively forming overall reticulate pattern on those portions of body. Dark chromatophores sparsely distributed over central portion of exposed region of scales but more concentrated anteriorly. Dark pigmentation absent on scales on lateral surface of body ventral to horizontal through base of pectoral fin and also on abdomen. Dorsal, anal, and caudal fins somewhat dusky, with ray margins outlined by small, dark chromatophores. Dark pigmentation most developed distally on caudal-fin lobes, dorsal fin, and anterior rays of anal fin. Pectoral and pelvic fins hyaline overall, but with rays outlined by small, dark chromatophores. Adipose fin speckled with small dark chromatophores. Distribution. Cyphocharax sanctigabrielis is presently known from the upper rio Negro, Amazon basin (Fig. 2). The type locality, Igarapé Nouba Uba (Fig. 3) empties into the rio Negro upriver of the city of São Gabriel da Cachoeira. Habitat notes. The Igarapé Nouba Uba (Fig. 3) is a shallow (30-50 cm), slow-flowing stream over fine and sand substrate within a well-preserved forested setting with the stream borders lined with grasses and rushes. Etymology. The species name, sanctigabrielis, is in reference to the município de São Gabriel da Cachoeira, Amazonas State, within which the new species was discovered. Generic placement. As presently defined, Cyphocharax is delimited by the combination of the possession of the synapomorphies for a quadritomy formed by that genus, Curimatella, Pseudocurimata and Steindachnerina in conjunction with the absence of the synapomorphies diagnostic for each of those three other genera (Vari, 1989a, 1989c, 1991, 1992a, 1992b). The absence of identified derived features common to the species of Cyphocharax leaves open the possibility that the closest relatives of Cyphocharax sanctigabrielis (and likely some other species in Cyphocharax) lie with one of Curimatella, Pseudocurimata, and Steindachnerina rather than with their nominal congeners. That possibility notwithstanding, Cyphocharax sanctigabrielis lacks the externally obvious synapomorphies present in Curimatella (Vari, 1989a: 58, 1992b: 4), Pseudocurimata (Vari, 1989c: 3) and Steindachnerina (Vari, 1989: 58; 1991: 23). In the absence of such derived features, the new species is assigned to Cyphocharax under the present definition of that genus.Published as part of Melo, Bruno F. & Vari, Richard P., 2014, New species of Cyphocharax (Characiformes: Curimatidae) from the upper rio Negro, Amazon basin, pp. 327-332 in Neotropical Ichthyology 12 (2) on pages 328-331, DOI: 10.1590/1982-0224-20130153, http://zenodo.org/record/455120
[Vari]
Full text link[VARI]
Monumenti Del Museo Grimani Pubblicati Nell'Anno 1831 : Esistenti Nel Gabinetto Di Antichità (-)
[Vari] (Fascicolo [2]) ( - )
Cover ( - )
Maschera Tragica Di Melpomene / Maschera Comica Di Talia ([1])
Vaso Di Marmo Pario ([2])
Simile im Marmo Pario ([3])
Base Di Candelabro ([4])
Canopo / Deità Egizie ([5])
Didio Giuliano / Helvio Pertinace / Claudio / Cajo Calogola ([6]
VJ-Ulaganathan/TraPS-VarI-BETA: Python module to identify membrane-proximal tyrosine-based sequence motifs YxxQ
No full text<p>TraPS VarI is a tool to identify membrane-proximal tyrosine-based sequence motifs YxxQ, where Y is tyrosine, Q is glutamine and x any amino acid. It is a python based module for predicting germline receptor variants of single-pass transmembrane proteins potentially capable of modulating in a genotype-dependent manner, the STAT3 signaling and drug sensititiviy to growth inhibition (Ulaganathan et al, 2015; doi:10.1038/nature16449). The algorithm requires single nucleotide polymorphism genotyping datasets in Variable Call Format 4.0 as input. Additionally, the tool finds for associated membrane proteins, all the matching therapeutic target database and DrugBank records. As an advanced options in TraPS VarI - BETA, associated clinical trial studies for the found membrane proteins are extracted and will be saved in a folder as separate protein files.</p>
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