The hexanic extract composition of two populations of Lippia graveolens growing in an arid zone in the Tehuacán-Cuicatlán Valley (Zapotitlán Salinas, Puebla), Central Mexico, in different seasons of the year, and in contrasting conditions of ecological disturbance has been studied by GC and GC-MS. Regarding to the composition of these extracts, qualitative differences among the two populations ...

A representational approach to ecological psychology is presented. This paper identifies a computational-level commonality in ecological psychology research related to passability of apertures. It is argued that a cognitive mechanism capable of comparing the geometric properties of an environment and the geometric properties of the agent can be used to support judgments for action in space.

An alternative view of presence is introduced based on existential philosophy and ecological psychology. This view favors a Heideggerian/Gibsonian metaphysic over the more conventional rationalistic orientation. In this alternative view, notions of subjective presence and objective presence no longer exist. Presence is instead tied to one’s successfully supported action in the environment, this...

the present study aimed at investigating and estimating the amount of damage caused by waste water pollution of water desalinators in the south pars special zone. the main reasons for conducting this study were to investigate the creation of environmental pollutants as a result of the development and expansion of different industries in the south pars zone, as well as the ecological sensitivity...

nowadays, environmental impact assessment (eia) is a one of planning tool that used for the prediction of environmental impacts. there are several methods to assess environmental impacts in the world. degradation model is one of the mathematics models that investigates and predicts data for assessing the impact of development. degradation model consist degradation coefficient per ecology unit, ...

Under conditions of high vapor pressure deficit (VPD) and soil drying, restricting transpiration is an important avenue to gain efficiency in water use. The question we raise in this article is whether breeding for agro-ecological environments that differ for the rainfall have selected for traits that control plant water use. These are measured in pearl millet materials bred for zones varying i...

of the Dissertation .......................................................................................................... ii Acknowledgments ....................................................................................................................... vii Biographical Sketch ..............................................................................................................

Interspecific hybridization may enhance the capacity of populations to adapt to changing environments, and has practical implications for reforestation. We use genome-wide estimates of admixture and phenotypic traits for trees in a common garden to examine the extent and direction of gene flow across a Picea hybrid zone, testing assumptions of the bounded hybrid superiority and tension zone mod...

This paper outlines a framework for understanding gameplay from the perspective of ecological psychology. According to this perspective, gameplay can be described in terms of perceiving, acting on and transforming the affordances that are related to a game system or to other players in a game. Challenges in games have an emphasis on perceiving suitable actions and/or performing suitable actions...