Laboratorio de Ecologı́a de Pinnı́pedos ‘‘Burney J. Le Boeuf,’’ Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Avenida IPN s/n Colonia Playa Palo de Santa Rita, La Paz, Baja California Sur 23096, México (CJH-C, DA-G) National Marine Mammal Laboratory, Alaska Fisheries Science Center, National Oceanic and Atmospheric Administration, 7600 Sand Point Way NE, Seattle, ...

Abstracl This paper deals with the probabilistic analysis of some quantitative measures associated with periodicities in words, notably, the various values attained by the lengths of the longest common prefix of pairs of suffixes of a given word. Such values, that are called here self-alignments, playa crucial role in sever3J. algorithmic constructions, such as building the suffix tree or inver...

The ORBCOMM system is the world's fIrst commercial LEO two-way data communications system. The ORBCOMM system, when fully deployed, will use a constellation of small satellites to provide users with low-cost near-continuous data relay and position determination services on a seamless worldwide basis. Due to the large number of spacecraft, and the need to keep operational costs low, automation w...

Redactar una editorial de la revista IEEERita en el medio del mes de agosto en nuestro país implica (generalmente) un esfuerzo de reflexión previo importante. Mes de vacaciones, playa o montaña ofrecen momentos de tranquilidad que ayudan en el proceso. Surgen cuestiones primordiales, tales cómo, ¿cuál es el origen del éxito formativo de un ingeniero? Los mejores ingenieros, los más técnicamente...

Another ornamental, *Euonymus ph ellomana, has in parts of Riccarton Bush assumed dominance in the shrub layer and its seedlings are so abundant on the iloor of the forest that many seedlings of native species are smothered. Flooding of the soil during the dry summer period may in this instance assist the native species to playa more vigorous part in the community, as it seems that lack of soil...

Research at APL has been directed at understanding energy transfer events taking place after laser excitation of photosensitive compounds in condensed media. In particular, optical means have been developed for the detection of electronically excited molecular oxygen (singlet oxygen) resulting from a favored energy transfer from the sensitizer triplet state. Oxygen excited in this manner is tho...

Tissues from barred tiger salamanders (Ambystoma tigrinum mavortium), Great Plains toads (Bufo cognatus) and New Mexico spadefoots (Spea multiplicata) collected from 16 playa wetlands in Texas during 1999 and 2000 were examined by light microscopy. Digenean cysts were primarily distributed subcutaneously throughout the specimens and occasionally coelomic invasion was noted. The parasites within...