Resultados de Búsqueda por Autor

1

artículo

Morphological and molecular differentiation in the rhodymenia corallina complex (Rhodymeniaceae, rhodophyta) from Central Peru [Diferenciación morfológica y molecular en el complej...

Publicado por
Perez-Alania M., Arakaki N., Gil-Kodaka P., Tellier F., Ramírez M.E.

Publicado 2019

Enlace

Seven species of Rhodymenia have been recorded for the coast of Peru, where six of them grow on the central coast: R. corallina, R. howeana, R. multidigitata, R. flabellifolia, R. skottsbergii and R. californica. The most controversial taxonomically is R. corallina, from which R. howeana and R. multidigitata have been separated, only on the basis of external morphological characters (stipe form and frond habit). Recent and intensive collections of this species complex in the central coast of Peru (9°S to 15°S) have allowed gathering several morphotypes, evidencing high morphological variability, which makes difficult to differentiate each of the taxa involved. The aim of this work was to clarify the taxonomy of this complex by combining morphological data, both vegetative and reproductive, and genetic sequences through the use of rbcL and COI-5P markers. Specimens from Callao, type loc...

2

artículo

The genus phyllophorella (Phyllophoraceae, Rhodophyta) on the central coast of Peru, range extensions and anatomical description of the female gametophyte and carposporophyte

Publicado por
Arakaki N., Perez-Alania M., Tellier F., Gil-Kodaka P., Ramirez M.E.

Publicado 2020

Enlace

Phyllophorella was recently described from two localities on the central coast of Peru (12°S), based on the endemic species Phyllophora (Ph.) peruviana. The genus currently accommodates three species, Phyllophorella (P.) peruviana, P. humboldtiana and P. limaensis. Recent field surveys for Phyllophorella on the central coast of Peru led to the discovery of collections outside the originally reported ranges. Morphological, anatomical, and genetic characterization of the specimens confirms range extensions for P. peruviana to 9° S and 15° S, and P. humboldtiana to 12° S and 15° S. A combined phylogenetic analysis of rbcL and COI-5P gene sequences supports the taxonomic status of these two species and reasserts the genus as monophyletic. Anatomically, the two species differ in nemathecial structure. Phyllophorella peruviana displays dome-shaped and well-defined circular nemathecia, whe...

3

artículo

Demonstration of communication using neutrinos

Publicado por
Stancil, DD, Adamson, P, Alania, M, Aliaga, L, Andrews, M, Del Castillo, CA, Bagby, L, Alba, JLB, Bodek, A, Boehnlein, D, Bradford, R, Brooks, WK, Budd, H, Butkevich, A, Caicedo, DAM, Capista, DP, Castromonte, CM, Chamorro, A, Charlton, E, Christy, ME, Chvojka, J, Conrow, PD, Danko, I, Day, M, Devan, J, Downey, JM, Dytman, SA, Eberly, B, Fein, JR, Felix, J, Fields, L, Fiorentini, GA, Gago, AM, Gallagher, H, Gran, R, Grange, J, Griffin, J, Griffin, T, Hahn, E, Harris, DA, Higuera, A, Hobbs, JA, Hoffman, CM, Hughes, BL, Hurtado, K, Judd, A, Kafka, T, Kephart, K, Kilmer, J, Kordosky, M, Kulagin, SA, Kuznetsov, VA, Lanari, M, Le, T, Lee, H, Loiacono, L, Maggi, G, Maher, E, Manly, S, Mann, WA, Marshall, CM, Mcfarland, KS, Mislivec, A, Mcgowan, AM, Morfin, JG, Da Motta, H, Mousseau, J, Nelson, JK, Niemiec-Gielata, JA, Ochoa, N, Osmanov, B, Osta, J, Palomino, JL, Paradis, JS, Paolone, V, Park, J, Pena, C, Perdue, G, Lara, CEP, Peterman, AM, Pla-Dalmau, A, Pollock, B, Prokoshin, F, Ransome, RD, Ray, H, Reyhan, M, Rubinov, P, Ruggiero, D, Sands, OS, Schellman, H, Schmitz, DW, Schulte, EC, Simon, C, Salinas, CJS, Stefanski, R, Stevens, RG, Tagg, N, Takhistov, V, Tice, BG, Tilden, RN, Velasquez, JP

Publicado 2012

Enlace

Beams of neutrinos have been proposed as a vehicle for communications under unusual circumstances, such as direct point-to-point global communication, communication with submarines, secure communications and interstellar communication. We report on the performance of a low-rate communications link established using the NuMI beam line and the MINERvA detector at Fermilab. The link achieved a decoded data rate of 0.1 bits/sec with a bit error rate of 1% over a distance of 1.035 km, including 240 m of earth.