Coronary anomalies are rare, with a reported prevalence of 1.3% among patients who undergo coronary angiography. The great majority of coronary artery anomalies are incidental findings and are not clinically significant, but in some cases, may be responsible for angina,…

The particle induced X-ray emission technique (PIXE), developed by Johansson and colleagues in Lund, Sweden, in the 70's has been used since then in a high number of studies requiring detection and quantification of trace elements at high sensitivity (better…

Rhabdias manantlanensis n. sp., parasite of the lungs of Craugastor occidentalis is illustrated and described. Rhabdias manantlanensis differs from related species in the genus by the combination of the following characters: elongated body, cuticle slightly swollen (thin and smooth), 6…

Deiregyne tenorioi Soto Arenas & Salazar, a new orchid species from the Mexican states of Hidalgo, Estado de México, Oaxaca, Puebla, and Tlaxcala, is described and illustrated. It is similar to D. eriophora (B.L. Rob. & Greenm.) Garay and D.…

A new species, Digitaria michoacanensis from northern Michoacán and the adjacent part of the state of México in the central-west region of México, is described. Pending an updated phylogenetic infrageneric classification of the genus; the new species is placed in…

We describe a possible seismomagnetic precursor to the Mw 7.2 earthquake of April 4, 2010, with epicenter nearby the sierras El Mayor and Cucapah in NE Baja California, México, (El Mayor-Cucapah earthquake). We used total-field magnetic intensity data recorded on…