March 2013
Isolation of Bacillus sphaericus screening larvicidal, fecundity and longevity effects on malaria vector Anopheles stephensi
In India, the most important diseases transmitting mosquitoes belong to the genera Anopheles, Culex, Aedes and Mansonia. The indiscriminate use of synthetic insecticides creates multifarious problems like environmental pollution, global warming, insecticide resistance and is hazardous to humans. In the present study, bacterial pesticide, Bacillus sphaericus a soil dwelling bacteria, isolated from...
March 2013
Storage of open-pollinated maize variety seeds in active cattle kraal to suppress maize weevils and improve seed quality and seedling vigour
Open-pollinated maize (Zea mays) varieties remain popular in marginal communities since seeds can be selected and stored for the next season. However, maize weevil (Sitophilus zeamais) is an economic post-harvest pest of maize grains, which is difficult to manage. Various indigenous seed storage technologies had been in use within marginal communities, with little empirically-based support of their...
March 2013
Determination of spatiotemporal distribution of Agricultural drought in Central Serbia (Å umadija)
Over the past several decades, extreme drought events have become increasingly frequent in Central Serbia and have affected vast areas of land. In agriculture, the impact of drought is dramatic, especially if the soils in the affected area are shallow, like in most of the Šumadija Region where field crops, fruits and grapevines are traditionally rainfed. Exceptionally dry years have a multiple-year...
March 2013
Image authentication using perceptual hashing
This paper presents a review of image authentication methods, based on the perceptual image hashing approach. Firstly we analyze two algorithms, which have the capability of determining if an image is authentic or not, even if it has suffered content preserving distortions such as compression, filtering and other signal processing operations; as well as some malicious modification such as geometric...
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