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Mostrando ítems 231-240 de 467
Efecto del tamaño de la bellota y del cambio climático sobre la germinación de encinos (Qercus SPP.)
(2019-08-23)
"La producción de semillas en ecosistemas forestales está regulada por factores ambientales y genéticos, donde los árboles parentales influyen en los rasgos de las semillas. Así, el tamaño de las semillas puede influir en ...
Aberraciones cromáticas en Aves de México: Una revisión y registros recientes en el Estado de San Luis Potosí
(Neotropical Ornitholigical Society, 2018)
"La presencia de aberraciones cromáticas en las aves ha llamado la atención de los investigadores desde hace mucho tiempo. En México se ha notado un reciente incremento de artículos publicados referente a este tema. Por ...
Rheological behavior from light to heavy oils: construction of master curves
(American Chemical Society, 2016)
"In this work, the rheological behavior of heavy and light stabilized (dead) oils is presented. The viscosity measurements were carried out in two different apparatuses to ensure the repetitiveness and accuracy: a Stabinger ...
Water defluoridation with special emphasis on adsorbents-containing metal oxides and/or hydroxides: A review
(Elsevier, 2015)
"Fluoride contamination in drinking water has been recognized as one of the major worldwide problems since this represents a serious threat to human health. The World Health Organization (WHO) recommends the guideline value ...
The role of organic load and ammonia inhibition in anaerobic digestion of tannery fleshing
(Elsevier, 2018)
"In this study, batch tests on anaerobic digestion of tannery fleshing (skin-residue waste from hides’ tanning process), as sole substrate, have been performed with the purpose of assessing the effects of high substrate ...
Community structure of a southern Chihuahuan Desert grassland under different grazing pressures
(Elsevier, 2009)
"The effect of different grazing intensities on the semiarid grasslands of the southern Chihuahuan Desert was studied using a fence-line contrast between a moderately grazed cattle ranch, from which goats and sheep had ...
Progress and opportunities for monitoring greenhouse gases fluxes in Mexican ecosystems: the MexFlux network
(Universidad Nacional Autónoma de México, Centro de Ciencias de la Atmósfera, 2013)
"Para entender los procesos de los ecosistemas desde un punto de vista funcional es fundamental entender las relaciones entre la variabilidad climática, los ciclos biogeoquímicos y las interacciones superficie-atmósfera. ...
Respuesta del índice de vegetación de diferencia normalizada (NDVI) a la actividad antrópica, variabilidad climática y ambiental en bosque de encino
(2019-08)
"Los ecosistemas forestales han desarrollado umbrales de resistencia y resiliencia para mantener sus funciones, procesos y estructura. En bosques con alto grado de disturbio, se han superado los umbrales debido al cambio ...
Role of the intrinsic properties of partially reduced graphene oxides on the chemical transformation of iopromide
(Elsevier, 2016)
"The role of the intrinsic properties of graphene oxide (GO) and partially reduced graphene oxide (rGO), and their use as redox mediator (RM) is reported, for the first time, on the chemical transformation of iopromide ...
Are seed mass and seedling size and shape related to altitude? Evidence in Gymnocalycium monvillei (Cactaceae)
(Canadian Science Publishing, 2015)
"Several studies reported a negative relationship between altitude and seed mass. In cactus species, seed mass has been also related to seedling morphology (size and shape). Here we studied Gymnocalycium monvillei (Lem.) ...