Opsins comprise the protein component of light sensitive G protein-coupled receptors (GPCRs) in the retina of the eye that are responsible for the transduction of light into a biochemical signal. Here, we used hydrogen/deuterium (H/D) exchange coupled with mass spectrometry to map conformational changes in green cone opsin upon light activation. We then compared these findings with those report...

urban quality of life is one of the important areas of urban studies in different countries. this importance stems from the increasing attention to monitoring public policies and its role as efficient tool in urban management and planning. the unprecedented growth of urbanization in developing countries specifically in iran, the cities now present a multi-structural fabric which show considerab...

Tourism is a progressively major part of economies of urban areas. Urban regeneration as a subcategory of urban tourism has been the center of many urban projects. This study addresses the role of space syntax theory as an analytical tool and design aided tool in urban regeneration. For this purpose, we examined the development of a square in the Kuala Lumpur City Center (KLCC) using space synt...

The understanding of urban social-ecological systems requires integrated and interdisciplinary methods. This paper explores differences in the accessibility green spaces (UGS) based on morphology. In contrast to other comparative analyses that followed simplified quantification UGS provision and/or omitted impact morphological properties space, this study proposes three improvements. First, it ...

Accessibility indices which measure the relative `nearness' or `propinquity' of geographic locations, one to another, are not well-developed functions in proprietary geographic information systems (GIS), notwithstanding their evident usefulness for urban analysis. In this paper, we develop procedures for embedding such measures within desktop GIS, focusing on the measurement of geometric access...

there have been different indices identified for desertification. among these is technogenic desertification index which seems much more efficient. in this study, some of technogenic desertification indices were studied and evaluated. first land use maps of the region were taken from irs-pan satellite image and aerial photos analysis. after evaluating the area of different uses, lands that had ...

Abstract Society nowadays makes intensive use of time and extensive space. This has implications for spatial planning facilities services since it is now essential to look at personal accessibility (in terms choice) not just physical distance. Over above (distance or cost travel the facility service), location models based on space-time also consider with respect available access a service. The...