the effect of exclosure on the changes of vegetation cover of rangelands of ahmad-abad region located in zanjan province has been studied during 2002 to 2006. three transects comprises of 60 fixed quadrate were establish within exclosure area and outside as well. the changes of vegetation cover were studied to made comparison between the changes of manipulated factors and soil elements using t ...

in the absence of herbicides, cover crops play an important role for weed management in organic than in conventional farming. therefore, in order to evaluate the effects of cover crop management and plant density of buckwheat (fagopyrum esculentum) as cover crop on weed suppression, a field experiment was conducted at the research farm of university of zanjan, during the growing season of 2011....

Dust events of Iran mainly originate from Iraq, Syria, Saudi Arabia, Kuwait and inland territories which are influenced by droughts and Land Use/Land Cover (LU/LC) degradation in regional scale. The aim of this research was to investigate the impact of Regional Vegetation Cover Degradation (RVCD), particularly Regional Rangeland Cover Degradation (RRCD) on frequency of dusty days in western pro...

In this paper, we present techniques to detect Least Significant Bit (LSB) steganography for images. Here, images can be hidden inside lower bits of the pixels of the cover image. We use image statistics to detect two cases when hidden image is stored as one big chunk (Simple Mode) or spread out(Shuffle Mode). The results are presented on a synthetically generated database of around 350 stegano...

This tutorial will introduce attendees to Icarus, a computational theory of the human cognitive architecture. The framework makes claims about the nature of cognition that distinguish it from more established architectures like ACT-R and Soar, and that we believe many conference participants will find intriguing. The presentation will cover the motivations behind Icarus, the theoretical assumpt...

art of the Affordable Care Act (ACA) calls for the expansion of Medicaid in 2014, which is expected to cover about 17 million previously uninsured Americans. The Supreme Court’s recent ruling that the federal government cannot force states to expand their Medicaid programs complicates the issue, making it more difficult for health care systems operating in several states to develop efficient st...

Increased CO2 concentrations can also “fertilize” plants by stimulating photosynthesis, which models suggest has contributed to increased vegetation cover and leaf area over the 20 century (Cramer et al., 2001). Increases in the Normalized Difference Vegetation Index, a remote sensing product indicative of leaf area, biomass and potential photosynthesis, have been observed (Zhou et al., 2001), ...