Advanced search


Knowledge area




Filter by:

Publication type

Authors

Issue Years

Publishers

Origin repository

Access Level

Language

Subject

Select the topics of your interest and receive the hottest publications in your email

5 results, page 1 of 1

Airborne Toxic Pollutants

MARINA ISLAS ESPINOZA (2014)

Most of the deaths linked to environmental exposure are attributed to air pollution (World Health Organization [WHO]/IER 2009). Atmospheric emissions are theoretically able to disperse maximally when in gaseous state. This is a property that has been put to use in chemical warfare using sarin (Murakami 2003) or pentafluorophenylarsenic oxide among many other toxic war gases (Rettenmeier 2004). However, the atmosphere is not a perfect gas, and precipitation, wind, and topography lead to a heterogeneous distribution of both pollutants in the air and deposition.

Book part

pollutants Aerosols and Particulate Matter Ozone BIOLOGÍA Y QUÍMICA

Airborne Toxic Pollutants

MARINA ISLAS ESPINOZA (2014)

Most of the deaths linked to environmental exposure are attributed to air pollution (World Health Organization [WHO]/IER 2009). Atmospheric emissions are theoretically able to disperse maximally when in gaseous state. This is a property that has been put to use in chemical warfare using sarin (Murakami 2003) or pentafluorophenylarsenic oxide among many other toxic war gases (Rettenmeier 2004). However, the atmosphere is not a perfect gas, and precipitation, wind, and topography lead to a heterogeneous distribution of both pollutants in the air and deposition.

Book part

pollutants Aerosols and Particulate Matter Ozone BIOLOGÍA Y QUÍMICA

Airborne Toxic Pollutants

MARINA ISLAS ESPINOZA (2014)

Most of the deaths linked to environmental exposure are attributed to air pollution (World Health Organization [WHO]/IER 2009). Atmospheric emissions are theoretically able to disperse maximally when in gaseous state. This is a property that has been put to use in chemical warfare using sarin (Murakami 2003) or pentafluorophenylarsenic oxide among many other toxic war gases (Rettenmeier 2004). However, the atmosphere is not a perfect gas, and precipitation, wind, and topography lead to a heterogeneous distribution of both pollutants in the air and deposition.

Book part

pollutants Aerosols and Particulate Matter Ozone BIOLOGÍA Y QUÍMICA

Determination of micronutrient uptake in greenhouse cucumber crop using a modeling approach

LINO JEREMÍAS RAMÍREZ PÉREZ AMERICA BERENICE MORALES DIAZ KARIM DE ALBA ROMENUS SUSANA GONZALEZ MORALES ADALBERTO BENAVIDES MENDOZA ANTONIO JUAREZ MALDONADO (2017)

"Control of micronutrients application in cucumber cultivation has great importance as they participate in many functions of metabolism. In addition, micronutrients application efficiency is fundamental to avoid periods of overconsumption or deficit in the crop. In order to determine the micronutrient uptake using a dynamic model, two cycles of Vitaly and Luxell cucumber crops were developed. During the development of the crop, micronutrients content (Fe, B, Mn, Cu and Zn) in the different organs of the cucumber plant was quantified. The model dynamically simulated the accumulation of biomass and micronutrients, using the climatic variables recorded inside the greenhouse as inputs. It was found that a decrease in the photosynthetically active radiation and in the temperature significantly diminishes the accumulation of biomass by cucumber plants. On the other hand, the results demonstrate that the model efficiently simulates both the accumulation of biomass and micronutrients uptake in cucumber crop. The indices used for the evaluation of efficiency showed values higher than 0.95. This dynamic model can be useful to define adequate strategies for the management of cucumber cultivation in greenhouses as well as the application of micronutrients."

Article

Mathematical modeling Cucumis sativus l Micronutrients uptake Simulation CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

A reassessment of Mappia (Icacinaceae) taxonomy using environmental data

Una reevaluación de la taxonomía de Mappia (Icacinaceae) utilizando datos ambientales

RODRIGO STEFANO DUNO Israel Loera Diego Angulo (2020)

Mappia (Icacinaceae) is a genus comprising four species inhabiting Mesoamerica and the Greater Antilles. In the most recent phylogenetic analysis based on morphological data, three species, representing a continental clade (Mappia longipes, M. mexicana and M. multiflora) sister to the Antillean species M. racemosa, were supported. Our aims in this study were to evaluate whether environmental data support the previous hypothesis in Mappia entities.

Article

CENTRAL AMERICA ENVIRONMENTAL NICHE MODELING GREATER ANTILLES NEOTROPICS BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) DESARROLLO VEGETAL DESARROLLO VEGETAL