We present some numerical results obtained from a simple individual-based model that describes clustering of organisms caused by competition. Our aim is to show that, even when a deterministic description developed for continuum models predicts no pattern formation, an individual-based model displays well-defined patterns, as a consequence of fluctuation effects caused by the discrete nature of...

This report describes the preparation of a safe and immunogenic single vaccine against capripox disease in sheep and goats using two different types of cells (primary lamb kidney and vero, a bovine turbinate cell line). This used the 0240 pox strain isolated from sheep during an outbreak. The prepared vaccine was administered subcutaneously and induced complete protection against an experimenta...

One of the most important and perilous groundwater contaminants is nitrate. The study area unconfined (free) aquifer Karaj, located in central Iran, which subject to quantity quality hazards due unbalanced urban, industrial, agricultural developments. Evaluation vulnerability condition this against nitrate as contamination index essential since consumed water provided by groundwater. This paper...

change detection is process of identifying differences in the state of an object or phenomenon by observing it at different times when it can play an important role in regional planning. this study is an integration of remote sensing data and geographic information system in order to detect changes of land use/land cover around the bakhtegan lake in fars province from 1956 to 2007. after geomet...

Solving a new multi-objective hybrid flexible flowshop problem with limited waiting times and machinesequence-dependent set-up time constraints S.F. Attar a , M. Mohammadi a , R. Tavakkoli-Moghaddam b & S. Yaghoubi c a Department of Industrial Engineering, Faculty of Engineering , Kharazmi University , Karaj , Iran b Department of Industrial Engineering, College of Engineering and Center of Exc...

1Child Growth and Development Research Center, Pediatric Pulmonology Department, Research Institute of Primordial Prevention of NonCommunicable Disease, Isfahan University of Medical Sciences, Isfahan, IR Iran 2Imam Hassan Mojtaba Hospital, Alborz University of Medical Sciences, Karaj, IR Iran 3Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, T...

1 Institute for Studies in Theoretical Physics and Mathematics, P.O.Box 5746, Tehran 19395, Iran. 2 Department of Physics, Alzahra University, Tehran 19834, Iran 3 Department of Physics, Sharif University of Technology, P.O.Box 9161, Tehran 11365, Iran. 4 Department of Physics, Tehran University, North-Kargar Ave. Tehran, Iran. 5 Institute for Advanced Studies in Basic Sciences, P.O.Box 159, Ga...

We studied the effect of nearest pattern interaction on a global pattern formation in a two-dimensional space, where patterns are to grow initially from a noise in the presence of a periodic supply of energy. Although our approach is general, we found that this study is relevant in particular to the pattern formation on a periodically vibrated granular layer, as it gives a unified perspective o...