the main purpose of this paper is to study urban management performance in public green spaces (parks) based on economical indexes, social indexes and environmental indexes. for this purposes, we use topsis method that is one of the methods of multiple criteria decision making. the data was obtained through interview and also a questionnaire which was distributed among about 1000 families of ma...

nowadays, most of the cities, especially metropolises of developing countries are engaged with environmental issues like air and water pollution, waste increase and etc., that lead to the environmental destruction. meanwhile sustainable urban development, provides the balance between development and the environment, and supplies the current generation needs while keep its eyes on the next gener...

We studied the arboreal composition of the tropical mountain rainforest's upper canopy in the San Martín Pajapán volcano, Tatahuicapan, Veracruz, México (18 degrees 26' N; 94 degrees 17' W). Two forest stands were studied, one in an exposed position and one protected. The Shannon index of diversity and the Jaccard index of affinity were calculated to calculate affinities between plots and betwe...

background : necessity of evaluating heat stress in the workplace, require validation of indices and selection optimal index. the present study aimed to assess the precision and validity of some heat stress indices and select the optimum index for using in heavy work activities in hot and dry climates. methods: it carried out on 184 workers from 40 brick kilns workshops in the city of qom, cent...

the pregnancy results of 17337 inseminations carried out in a dairy herd near cairo over a period of 12 years were retrospectively analyzed in relation to environmental temperature and temperature-humidity index (thi). the overall average of pregnancy rates to all inseminations was significantly (p

We describe a decision analytic, structured approach for developing environmental indexes ensuring them to be explicit and problem specific. The indexes are used for setting and communicating targets related to products’ environmental performance. Two index models are the fixed model based on the prevailing tradition, where announced targets must be met in every impact category, and the flexibl...