Detecting regional spatial structures based on spatial interactions is crucial in applications ranging from urban planning to traffic control. In the big data era, various movement trajectories are available for studying spatial structures. This research uses large scale Shanghai taxi trip data extracted from GPS-enabled taxi trajectories to reveal traffic flow patterns and urban structure of t...

Urban green space is one of the important solicitude for urban planners and designers due to their effects on quality of life. This research used HPM model to estimate economic value of urban green space, in a case study of trees in Velenjak residential place, Tehran Metropolitan Area in Iran. View determined the spread tree on the public spaces and neighbourhoods improve residential lan...

air pollution is one of the major threats to environment in the present time. increase in degree of urbanization is a major cause of this air pollution. due to urbanization, vehicular activities are continuously increasing at a tremendous rate. mobile or vehicular pollution is predominantly degrading the air quality worldwide. thus, air quality management is necessary for dealing with this seve...

The Ramand region is a part of the magmatic belt in Urmieh-Dokhtar structural zone in Iran, located in the SW of BuinـZahra. This area mainly consists of felsic extrusions such as rhyolites and rhyodacites. Argillic alterations with occurrences of mineralized silica veins are abundant in most of the volcanic units. In this research work, we used the GIS facilities for modeling the Ramand geo-sp...

Brent D. Ryan first visited Detroit in 1993. Describing this experience, he says: ‘‘The sense of emptiness was overpowering. ... I felt as if I was walking into the ruin of America.’’ In his book ‘‘Design after decline—how America rebuilds shrinking cities,’’ Ryan tries to understand why so many American cities have been losing population, what was and is done to change the fortune of these cit...

Background: Out-of-pocket payments for medical services may undermine access to and equity in healthcare financing. Objectives: The present study aimed determine the distribution of burden out-of-pocket among households Qazvin province, Iran. Methods: This descriptive-analytical was conducted on urban rural Iran during 2019 - 2020. Data were obtained from Statistics Center (2019 2020). optimal ...

BACKGROUND Nurses are at risk of percutaneous exposure incidents (PEIs), which may lead to serious or even fatal blood-borne infections. OBJECTIVES To determine the prevalence of PEIs in the last year, among nurses and to assess their knowledge about and frequency of safe method of practice in exposure to blood-borne pathogens (especially, to HBV). MATERIALS AND METHODS A cross-sectional st...