División de Ciencias Ambientales: Envíos recientes
Mostrando ítems 141-160 de 454
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Hydrogen metabolic patterns driven by Clostridium-Streptococcus community shifts in a continuous stirred tank reactor
(Springer, 2018)"The hydrogen (H2) production efficiency in dark fermentation systems is strongly dependent on the occurrence of metabolic pathways derived from the selection of microbial species that either consume molecular H2 or ... -
Evaluation of a membrane bioreactor system as post-treatment in waste water treatment for better removal of micropollutants
(Elsevier, 2016)"Organic micropollutants (OMPs) such as pharmaceuticals are persistent pollutants that are only partially degraded in waste water treatment plants (WWTPs). In this study, a membrane bioreactor (MBR) system was used as a ... -
Acorn weight as determinant of germination in red and white oaks: evidences from a common-garden greenhouse experiment
(Springer, 2018)"Key message In Mexican oaks, germination increases with acorn fresh weight across oak species. Within species, these relationships are stronger in red oaks than in white oaks. In both oak groups, fresh weight of acorns ... -
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 ... -
Methanogenic and Sulfate-Reducing Activities in a Hypersaline Microbial Mat and Associated Microbial Diversity
(Springer, 2018)"Methanogenesis and sulfate reduction are important microbial processes in hypersaline environments. However, key aspects determining substrate competition between these microbial processes have not been well documented. ... -
Role of indigenous microbiota from heavily contaminated sediments in the bioprecipitation of arsenic
(Elsevier, 2017)"High arsenic concentrations have been detected in alluvial aquifers of arid and semi-arid zones in Mexico. This work describes the potential of microbial arsenate reduction of the indigenous community present in sediments ... -
Microbial recovery of metallic nanoparticles from industrial wastes and their environmental applications
(Wiley, 2018)"In recent years, metallic nanoparticles (NPs) have been produced by biological methods using bacteria and have been used with remarkable environmental applications. This paper emphasizes the basic aspects of microbial ... -
Enhancing saccharification of Agave tequilana bagasse by oxidative delignification and enzymatic synergism for the production of hydrogen and methane
(Elsevier, 2018)"Agave tequilana bagasse is a suitable lignocellulosic residue for energy production. However, the presence of lignin and the heterogeneous structure of hemicellulose may hinder the availability of polysaccharides. In this ... -
Temporal and longitudinal biofilm matrix analysis of a biofilter treating ethyl acetate during ozonation
(Springer, 2018)"The present paper focuses on the biofilm composition and pattern of biomass in gas biofiltration of ethyl acetate working under continuous addition of ozone (O3). Two biofilters were operated for 230 days, one under ... -
Effects of five Lacandon Maya agroforestry trees on soil nematode trophic group composition
(Springer, 2018)"The Lacandon Maya have managed their lands in Chiapas, Mexico for hundreds of years without long-term soil degradation by applying their traditional swidden agroforestry system. Lacandon land managers plant and care for ... -
Producción de hidrógeno en continuo a partir de hidrolizados enzimáticos de bagazo de agave obtenidos con la enzima nacional Cellulase 50 XL
(2019-08-26)"El bagazo de agave es un residuo lignocelulósico que puede ser utilizado como sustrato para la producción de hidrógeno (H2). Sin embargo, debido a su estructura compleja, es necesario someterlo a un proceso de sacarificación ... -
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 ... -
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 ... -
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 ... -
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. ... -
Comunidades de roedores nocturnos en un ecotono de matorrales micrófilos y zacatal gipsófilo en San Luis Potosí, México
(Instituto de Biología, Universidad Nacional Autónoma de México, 2008)"En el presente estudio se compara la abundancia y riqueza entre los roedores nocturnos de un zacatal gipsófilo y los de 3 matorrales micrófilos, en el norte de San Luis Potosí. Los muestreos se llevaron a cabo en sitios ... -
Germinación de especies de cactáceas en categoría de riesgo del desierto chihuahuense
(Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, 2011)"Se presenta una síntesis de los principales resultados sobre germinación de semillas de 28 cactáceas con estatus de conservación y cuatro sin estatus, nativas del desierto chihuahuense. Se incluye la información referente ... -
Rangeland systems in developing nations: conceptual advances and societal implications
(Springer, 2017)"Developing-country rangelands are vast and diverse. They are home to millions who are often poor, politically marginalized, and dependent on livestock for survival. Here we summarize our experiences from six case-study ... -
An overview of reclaimed wastewater reuse in gold heap leaching
(Taylor & Francis, 2016)"The intensive use of groundwater by the gold mining industry is an important sustainability concern, especially in arid and semiarid regions where groundwater is a scarce resource. Alternatives, such as water reuse, ...