نتایج جستجو برای: ecological functions

تعداد نتایج: 587215  

Journal: :محیط زیست طبیعی 0
علی عسگریان دانشجوی کارشناسی ارشد، رشتۀ منابع طبیعی ـ محیط زیست، دانشگاه تهران بهمن جباریان امیری استادیار دانشکدۀ منابع طبیعی ـ گروه محیط زیست، دانشگاه تهران

development of remote sensing (rs) and gis techniques and that of landscape metrics in the late 1980s have caused to introduce a new dimension in the landscape ecology arena (the relationship between spatial patterns and ecological processes). however, scale dependence of some of landscape metrics and rs systems of different spatial resolution has resulted in particular attention into selection...

2017
Sterling Somers

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.

Journal: :Presence 1998
Pavel Zahorik Rick L. Jenison

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...

2010
Michele Poletti Satish M. Kini Murali Chakravarthy

This paper discusses the ecological validity of recently proposed tasks for the assessment of executive functions related to the Orbitofrontal Cortex, in children and adolescents. This topic is discussed considering two conceptually distinct approaches to ecological validity, verisimilitude and veridicality. The issue of ecological validity has been increasingly recognized in child neuropsychol...

2013
Rodrigo F. Braga Vanesca Korasaki Ellen Andresen Julio Louzada

Although there is increasing interest in the effects of habitat disturbance on community attributes and the potential consequences for ecosystem functioning, objective approaches linking biodiversity loss to functional loss are uncommon. The objectives of this study were to implement simultaneous assessment of community attributes (richness, abundance and biomass, each calculated for total-beet...

2011
Jonas Linderoth

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...

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

2013
S. Kumaraswamy

In the recent past there has been concern to address the declining trends and deteriorating ecological elements and their functions in productive agricultural landscapes. The efforts to revive the ecological functions needs multiple scale approach, which include scientific understanding, time dependent restorative activities and incorporation of wisdom of the stakeholders. Conservation initiati...

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