نتایج جستجو برای: and social applications ecosystem concepts
تعداد نتایج: 17013985 فیلتر نتایج به سال:
© The Ecological Society of America www.frontiersinecology.org O the past 50 years, ecosystems have been altered by humans more than at any other time in recorded history (Vitousek et al. 1997; Chapin et al. 2010), and those changes have resulted in reciprocal effects on human wellbeing (MA 2005). Although health and wealth have, on average, improved, in part as a consequence of these ecosystem...
The crucial role of biodiversity in the links between ecosystems and societies has been repeatedly highlighted both as source of wellbeing and as a target of human actions, but not all aspects of biodiversity are equally important to different ecosystem services. Similarly, different social actors have different perceptions of and access to ecosystem services, and therefore, they have different...
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this study investigated the functions, types and frequencies of code switching in the teachers and students discourse in elt classrooms. to this end, the participants of this study including two groups of teachers and students were selected. the first group of participants were two efl teachers teaching general english courses (at two different levels of proficiency) in an institutional program...
As the device ecosystem in the intelligent environments becomes more complex, the need for supporting a wider range of devices becomes crucial. To address this challenge, this paper describes a framework, Imhotep, which can be used to develop mobile applications, easily adapting them to the constraints imposed by the user and device capabilities through a set of preprocessor directives. These d...
A sustainable future requires a change of human activities at a global scale. Global agreements have not been very effective. At the local level there are many examples of successful efforts to solve collective action problems within social-ecological systems. The study of these examples has led to an understanding of the principles of self-governance. We propose to scale up these insights of s...
Physical development without proper planning has limited ecological capacity and the ability of natural ecosystems. Urban river structure as one of the most important ecological infrastructures in the city provides a variety of ecosystem services, including landscaping, climate change, etc. which is strongly dependent on the structure and functional status of the river. This study was conducted...
a problem of computer vision applications is to detect regions of interest under dif- ferent imaging conditions. the state-of-the-art maximally stable extremal regions (mser) detects affine covariant regions by applying all possible thresholds on the input image, and through three main steps including: 1) making a component tree of extremal regions’ evolution (enumeration), 2) obtaining region ...
the present paper investigates how far ideologies can be tease out in discourse by examining the employed schemata by two ideologically opposed news media, the bbc and press tv, to report syria crisis during a period of nine months in 2011. by assuming that news is not a valuefree construction of facts and drawing on micro structural approach of schema theory, for the first time in discours...
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