Results 21 to 30 of about 689,697 (237)

Educación Remota de Emergencia: Aplicaciones y plataformas educativas utilizadas durante la pandemia

open access: yesAlternancia, 2022
El objetivo de este trabajo consistió en analizar el uso y manejo de aplicaciones y plataformas educativas por parte de los docentes a través de una encuesta realizada en línea para comprender los alcances y limitaciones dentro de la llamada Educación ...
Karla Karina Ruiz Mendoza   +3 more
doaj   +1 more source

"Somos como el gato del gato": narcomenudeo en jóvenes universitarios de Baja California, México

open access: yesRevista Guillermo de Ockham, 2022
La inseguridad, la violencia, el crimen organizado, el narcomenudeo y el consumo de drogas son problemáticas que progresivamente se han incrementado en México, particularmente en estados del norte del país.
Anel Hortensia Gómez San Luis   +3 more
doaj   +1 more source

Louse Flies on Birds of Baja California [PDF]

open access: yesJournal of Wildlife Diseases, 2000
Louse flies were collected from 401 birds of 32 species captured in autumn of 1996 in Baja California Sur (Mexico). Only one louse fly species (Microlynchia pusilla) was found. It occurred in four of the 164 common ground doves (Columbina passerina) collected. This is a new a host species for this louse fly.
Tella, José Luis   +2 more
openaire   +3 more sources

Precipitation-temperature variability and drought episodes in northwest Baja California, México

open access: yes, 2020
Study region The semi-arid wine region of Guadalupe Valley located in NW Baja California, Mexico. Study focus Recently, recurrent dry years have diminishing groundwater resources threatening agricultural activities and the well-being population in the ...
Francisco José Del-Toro-Guerrero   +1 more
semanticscholar   +1 more source

Studies on California ants: a review of the genus Temnothorax (Hymenoptera, Formicidae)

open access: yesZooKeys, 2014
The following ten new species of the ant genus Temnothorax are described and illustrated: T. anaphalantus (California, Baja California), T. arboreus (California), T. caguatan (Oregon, California, Baja California), T.morongo (California, Baja California),
Roy Snelling   +2 more
doaj   +1 more source

Heavy metals in coastal sediments of the Baja California (Mexico)-California (USA) border zone

open access: yesCiencias Marinas, 1994
Metal pollution and distribution in marine surface (0-5 cm) sediments of the Baja California border region were characterized during 1989. The total organic carbon, clay, silt and sand contents in the sediments and their correlation with the metals ...
EA Gutiérrez-Galindo   +3 more
doaj   +1 more source

Maturation and fertilization in vitro of Pteria sterna (Gould, 1851, Mollusca)

open access: yesCiencias Marinas, 2002
 P. sterna oocytes cannot be fertilized in vitro unless they are obtained by inducing spawning. The present work was undertaken to develop a simple method to induce germinal vesicle breakdown that would enable the oocytes to be fertilized without prior ...
C Harris   +21 more
doaj   +1 more source

Community ecology across bacteria, archaea and microbial eukaryotes in the sediment and seawater of coastal Puerto Nuevo, Baja California

open access: yesPLoS ONE, 2019
Microbial communities control numerous biogeochemical processes critical for ecosystem function and health. Most analyses of coastal microbial communities focus on the characterization of bacteria present in either sediment or seawater, with fewer ...
Sabah Ul-Hasan   +7 more
semanticscholar   +1 more source

Modelación hidrológica e hidráulica de un río intraurbano en una cuenca transfronteriza con el apoyo del análisis regional de frecuencias

open access: yesTecnología y ciencias del agua, 2018
Las inundaciones se encuentran entre los peligros naturales más recurrentes y devastadores, al afectar vidas humanas y causar graves daños económicos en todo el mundo.
Carlos Salazar Briones   +5 more
doaj   +1 more source

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