*Instituto Nacional de Ecolog ́ıa (INE), c/o CICESE, Km. 107 Carretera Ensenada-Tijuana, Ensenada, BC 22860, Mexico †Southwest Fisheries Science Center, 8604 La Jolla Shores Drive, La Jolla, CA 92038, U.S.A. ‡Duke University Marine Laboratory, Nicholas School of the Environment, 135 Duke Marine Laboratory Road, Beaufort, NC 28516-9721, U.S.A. §Okapi Wildlife Associates, 27 Chandler Lane, Hudson,...

The poem responds to a photograph by Ilana Panich-Linsman that appeared in the magazine Mother Jones. It depicts migrant, Arlen Cruz, holding her two year-old daughter as rain soaks camp at sports complex Tijuana, Mexico, where many migrants caravan from Central America had been staying for weeks.

The FloodRISE hazard maps produced for the Tijuana River Valley and the Goat Canyon Watershed resulted from three distinct tasks: flood frequency analysis (FFA), hydrologic and hydraulic modeling, and post-processing of model output. Generally speaking, FFA estimates the recurrence interval of rare flooding events, while hydrologic and hydraulic modeling predicts the hazards associated with sim...

Twenty eight Bacillus thuringiensis strains isolated from the Tijuana-Ensenada region of northwestern Mexico were analyzed to determine the distribution of cry and cyt genes. Crystal production by the strains was examined by scanning electron microscopy, which showed the predominance of cubic crystals. Alkaline-dissolved and trypsin activated crystals were also analyzed by SDS-PAGE, yielding ba...

OBJECTIVE To estimate the prevalence of the hepatitis C virus (HCV) and HIV infection and associated risk behaviors among injection drug users (IDUs) in two northern Mexican cities. MATERIAL AND METHODS Between February and April 2005, IDUs were recruited in Tijuana (N=222) and Ciudad Juarez (N=206) using respondent-driven sampling (RDS), a chain referral sampling approach. Interviewer-admini...

there are many potential sources of stormwater pollutants in urban areas; one of these sources is gas stations, which are numerous and spread city-wide. a study was conducted to evaluate the water quality of runoff from gas stations in the city of tijuana, mexico. pollutant loads in runoff from gas stations in the study area were higher than in other published studies. the estimated loads from ...

dumpsites can produce serious pollution problems in soil, water and air, and are the most frequent method of solid waste disposal in many developing countries. one of the pollution concerns at dumpsites is the emission of methane, which has been identified as a green house gas. in order to determine the surface emission of methane at an informal settlement built on a former dumpsite, six sampli...