background and objectives: because of toxical and hazardous properties of hexavalent chromium (cr(vi)), its removal by an economical and efficient method is necessary. the use of activated carbon, as an adsorbent, is a common and effective method for hexavalent chromium removal. thus the aim of this study was to produce granular and powdered activated carbon form peganum harmala and compare the...

Analysis of data in social networks is very important for researchers, sociologists, and academics. Given the size and diversity of web data in a Web 2.0 environment, analyzing this data has been a challenge. Since data act as inputs in such projects, the accuracy of the output is directly related to the input. Good data allows for extraction of valuable knowledge. In this article, the authors ...

-   ahmadi, m., kaboli, m., imani harsini, j., khosravi sharifabadi, r., almasi, m., 2012. strategic management plan for wolf (canis lupus) in hamedan province: an approach to reducing human-wolf conflicts. journal of natural environment, iranian journal of natural resources. 65, 271–281. -   ballard, w.b., dau, j.r., 1983. characteristics of gray wolf, canis lupus, den and rendezvous sites in ...

Rho-like GTPases, including Cdc42, Rac, and Rho, regulate signaling pathways that control actin cytoskeletal structures and transcriptional activation. The Tiam1 gene encodes an activator of Rac1, and similarly to constitutively activated (V12)Rac1, overexpression of Tiam1 in fibroblasts induces the formation of membrane ruffles. Tiam1 contains a Dbl homology (DH) domain and adjacent pleckstrin...

Background: Among the available data provided by health information systems, data on mortality are commonly used not only as health indicators but also as socioeconomic development indices. Recognizing that in Iran accurate data on causes of death were not available, the Deputy of Health in the Ministry of Health and Medical Education (MOH&ME) established a new comprehensive system for death re...

drought, as a normal, recurrent climatic condition with complicated mechanism, is one of the least known natural disasters that may occur in any climatic condition. considering the recent drought events in the iran and the deterioration of water crisis, especially in the area under study, the necessity of further research in this area is felt. also, the evaluation and monitoring of drought with...