1,486 research outputs found
New species of Duplominona Karling, 1966 and Pseudominona Karling, 1978 (Platyhelminthes: Proseriata) from the Caribbean
No full textCurini-Galletti, Marco, Stocchino, Giacinta A., Norenburg, Jon L. (2019): New species of Duplominona Karling, 1966 and Pseudominona Karling, 1978 (Platyhelminthes: Proseriata) from the Caribbean. Zootaxa 4657 (1): 127-147, DOI: 10.11646/zootaxa.4657.1.
Marina Galletti, L'istante di lunga durata.Dall'estetica dell'immaginario agli scarti della ragione. Prefazione a Le soglie del fanstatico a cura di Marina Galletti
No full textParainvenusta Curini-Galletti
No full textGenus Parainvenusta Curini-Galletti gen. nov. Diagnosis: Coelogynoporidae with long paracnida surrounding the genital pore and in the tail. Copulatory organ of the duplex type, containing a convoluted unarmed cirrus. With bursa, and long, muscular genito-intestinal connection. Etymology: The genus name is coined after the genus Invenusta Sopott-Ehlers, 1976, and reflects the superficial similarity between the two taxa.Published as part of Curini-Galletti, Marco, Webster, Bonnie L., Huyse, Tine, Casu, Marco, Schockaert, Ernest R., Artois, Tom J. & Littlewood, Timothy J., 2010, New insights on the phylogenetic relationships of the Proseriata (Platyhelminthes), with proposal of a new genus of the family Coelogynoporidae, pp. 1-18 in Zootaxa 2537 on page 15, DOI: 10.5281/zenodo.19665
Timbro di Gustavo Camillo Galletti
No full text"Bibl. Gust. C. Galletti. Flor."
Timbro
Gustavo Camillo Galletti (1805-1868) medico, editore e bibliofilo
catalogo in linea: https://galileodiscovery.unipd.it/discovery/fulldisplay?context=L&vid=39UPD_INST:VU1&search_scope=MyInst_and_CI&tab=Everything&docid=alma99000394441020604
Duplominona chicomendesi Curini-Galletti & Stocchino & Norenburg 2019, n. sp.
No full text<i>Duplominona chicomendesi</i> Curini-Galletti n. sp. <p>(Fig. 5 A–C)</p> <p> <i>Holotype</i>. Puerto Rico: Cayo Turrumote, off Isla Magueyes (Lat. 17.940478, long -67.043068), channels among <i>Montastrea</i> outcrops, about 10 m deep, in silty medium sand, December 1988: original film and printed pictures of the copulatory structures (SMNH-Type 9179).</p> <p> <i>Other material</i>. Same data as holotype, two specimens observed alive, and used for karyology.</p> <p> <i>Etymology</i>. The species’ name honors Chico Mendes (December 15, 1944 – December 22, 1988), a Brazilian environmentalist, who fought to preserve the Amazon rainforest, and was killed on the very day the holotype of this species was being studied.</p> <p> <i>Description and Diagnosis</i>. Similar to <i>Duplominona dissimilispina</i>, in habitus, arrangement of internal organs, number and position of genital pores (Fig. 5 A). Copulatory organ with a very small cirrus (Figs 5 B, C), with few spines arranged in 5–7 rows. Proximal spines are 3–5 μm in length, strongly curved, with a wide, flattened basis, to 3 μm in diameter. In the middle of cirrus, spines are longer, to 7.5 μm, even more curved, with a very slender distal tip. Distalmost spines are smaller, to 2 μm long, straighter, with a wide, flattened basis. Proximally, the cirrus lumen is surrounded by a furrowed pseudocuticula.</p> <p>Prostatoid stylet about 20 μm long.</p> <p> <i> <i>Karyotype</i>.</i> With n=3, and basic karyotype for the Monocelididae (Curini-Galletti & Martens, 1990); Chromosome pairs I and II markedly differing in length. Karyotype formula: FN=5; Chromosome I: 51.58 ± 2.81; 46.11 ± 1.29 (m); Chromosome II: 33.45 ± 1.53; 45.85 ± 1.34 (m); Chromosome III: 14.95 ± 2.46; 8.11 ± 3.9 (a) (based on 6 plates).</p>Published as part of <i>Curini-Galletti, Marco, Stocchino, Giacinta A. & Norenburg, Jon L., 2019, New species of Duplominona Karling, 1966 and Pseudominona Karling, 1978 (Platyhelminthes: Proseriata) from the Caribbean, pp. 127-147 in Zootaxa 4657 (1)</i> on page 136, DOI: 10.11646/zootaxa.4657.1.5, <a href="http://zenodo.org/record/3371005">http://zenodo.org/record/3371005</a>
GPU accelerated solution of time fractional diffusion systems
No full textFractional diffusion systems model a number of important applications, as for example water diffusion magnetic resonance imaging, since the biological tissues are heterogeneous and the signal exhibits a heavy tail which is characteristic of anomalous diffusion [3]. In this talk, we consider a time-fractional diffusion system discretized by a mixed method, consisting of a spectral method along time and a finite difference scheme along space [1]. As the spatial mesh becomes finer, the computational cost becomes very large and prevents getting high accuracy. In this context, our contribution is a suitable parallel implementation on GPUs (Graphics Processing Units) of this model. This massively multi-processors architecture has been recently used in several scientific applications to improve performance of software [4] and to get accurate and accelerated solutions in similar fractional diffusion problems [2]. Experiments show the gain of performance in execution time and accuracy terms of the parallel implementation.
References
[1] Burrage, K. and Cardone, A. and D’Ambrosio, R. and Paternoster, B. 2017 Numerical solution of time fractional diffusion systems, Appl. Numer. Math. 116, 82–94.
[2] De Luca, P., Galletti, A., Ghehsareh, H.R., Marcellino, L., & Raei, M. A gpucuda framework for solving a two-dimensional inverse anomalous diffusion problem.In: Foster, I., Joubert, G.R., Kučera, L., Nagel, W.E., Peters, F. (eds) Parallel Computing: Technology Trends, Advances in Parallel Computing. Vol 36. pp 311 -320. IOS Press, 2020.
[3] Höfling, F. and Franosch, T. 2013 Anomalous transport in the crowded world of biological cells, Rep. Prog. Phys. 76, 046602.
[4] Kurzak, J., Gates, M., Charara, A., YarKhan, A., Yamazaki, I., & Dongarra, J. (2019, August). Linear systems solvers for distributed-memory machines with gpu accelerators. In European Conference on Parallel Processing (pp. 495-506). Springer, Cham
Tafuri F, Stornaiuolo D, Lucignano P, Galletti L, Longobardi L, Massarotti D, Montemurro D, Papari G, Barone A, Tagliacozzo A
No full textDuplominona bocasana Curini-Galletti & Stocchino & Norenburg 2019, n. sp.
No full text<i>Duplominona bocasana</i> Curini-Galletti n. sp. <p>(Fig. 3 F–J)</p> <p> <i>Holotype</i>. Panama: Caribbean Sea: Bocas del Toro Is. (Lat. 9.364545, Lon. -82.238835), lower intertidal in coarse sand, sheltered by coral reef, June 2010: one whole mount (USNM 1569256).</p> <p> <b> <i>Other material</i>.</b> Same data as holotype, three specimens studied karyologically.</p> <p> <i>Etymology</i>. The species is named after the type locality, Bocas del Toro.</p> <p> <i>Description</i>. A small species, similar to the previous species in general morphology (Fig. 3 F).</p> <p> <i> <i>Male genital system</i>.</i> With 8–10 testes in one irregular row. Cirrus about 40–70 μm long, provided with 8–15 rows of spines, with relatively few spines per row (Figs 3 G–J). Proximal spines larger, 5-6 μm long, straight, with narrow bases, 2–2.5 μm wide, with a somewhat obtuse distal tip. More distally, spines become more curved in shape, with proportionally wider bases. Distalmost spines become progressively smaller, to 2.5–3 μm high, and 2.5–3 μm wide. Near the top, spines are small, 1.5–2.5 μm high, 1.5–2.5 μm wide, only slightly curved.</p> <p>Prostatoid organ just posterior to copulatory bulb, opening to the outside through it own pore. Prostatoid stylet about 20 μm long.</p> <p> <i> <i>Female genital system</i>.</i> Ovaria and vitellaria as in previous species. With a distinct bursa just in front of copulatory bulb, with external vagina (Fig. 3 F). Female pore posterior to prostatoid organ pore.</p> <p> <i> <i>Karyotype</i>.</i> With n=3, and all chromosomes acrocentric, different in size. Karyotype formula: FN=3; Chromosome I: 57.8; 10.8 (a); Chromosome II: 25.14; 10 (a); Chromosome III: 17.08; 17.24 (st) (based on one plate).</p> <p> <i> <i>Diagnosi</i> s. Small Duplominona species with up to 10 testes in one row. Cirrus long and narrow, with 8–15 rows of narrowly triangular spines up to 6 μm long proximally, becoming progressively more curved and with wider bases medially. Distal spines progressively smaller, to 1.5 μm long. With a prostatoid organ provided with a stylet 20 μm long. With a bursa and an external vagina opening close to male pore. Female duct and prostatoid organ open to the outside independently. Karyotype with three pairs of acrocentric chromosomes</i> </p>Published as part of <i>Curini-Galletti, Marco, Stocchino, Giacinta A. & Norenburg, Jon L., 2019, New species of Duplominona Karling, 1966 and Pseudominona Karling, 1978 (Platyhelminthes: Proseriata) from the Caribbean, pp. 127-147 in Zootaxa 4657 (1)</i> on page 134, DOI: 10.11646/zootaxa.4657.1.5, <a href="http://zenodo.org/record/3371005">http://zenodo.org/record/3371005</a>
Duplominona veracruzensis Curini-Galletti & Carcupino & Stocchino & Leasi & Norenburg 2020, n. sp.
No full textDuplominona veracruzensis Curini-Galletti n. sp. (Fig. 7) Holotype. Gulf of Panama, Playa Venado (Veracruz, Panama)(Lat. 8°53’27.07”N; Lon. 79°35’44.16”W), intertidal in silty coarse sand, December 2011: whole mount USNM 1622598) Etymology. The specific epithet is coined on the locality of finding. Description. A minute Duplominona species, about 1.5 mm long. With dot-like rhabdoids, more evident cephalically; clusters of long rhabdoids are present caudally. Caudal tip simple, pointed. Pharynx about midbody (Fig 1 A). Male genital system. With 6 testes in one row. With an ovoid copulatory organ, 50 μm long. Spiny cirrus 35 μm long, provided with about 25 rows of spines. Proximal spines crowded, densely packed, very small, 1.5–2 μm long. Halfway the length of the cirrus, spines change their morphology, and become larger and slenderer, up to 6–7 μm long, less densely packed, and bluntly triangular in shape (Fig 7 C–F). Accessory organ 45 μm across, provided with a stylet 13 μm long. It opens to the outside with its own pore, very close to the female pore. Female genital system. Ovaria and vitellaria as in previous species. With a large pre-penial bursa, with a long vaginal duct, in front of the copulatory organ (Fig 7 B). The female duct continues posteriorly to the bursa and opens just behind the prostatoid organ pore through the female pore. Diagnosis. Species of Duplominona with about 25 rows of triangular spines, 1.5–7 μm long, increasing in size distally. Distal spines bluntly triangular.Published as part of Curini-Galletti, Marco, Carcupino, Marcella, Stocchino, Giacinta A., Leasi, Francesca & Norenburg, Jon L., 2020, New species of Duplominona Karling, 1966 (Platyhelminthes, Proseriata) from the Pacific coast of Panama, pp. 482-498 in Zootaxa 4881 (3) on page 492, DOI: 10.11646/zootaxa.4881.3.3, http://zenodo.org/record/428389
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