Abstract— Now a day, rapid growth of Internet and its users increases range of data types which emphasize the security problem and also flood of multimedia contents in the structure of transmission of such data. The Encryption system for data is used for hiding data and messages by supervised trained dictionary. It involves hiding the secret text inside the cheating text. This cheating text is then hiding in Audio file. If this cheating text is intercepted by unauthorized person, the secret text may still be undetected by them. There are many reasons to hide data but most important is to put off unauthorized persons from becoming conscious of the existence of such a message in the network of communication. This hidden message is information which is not immediately noticeable which must be discovered or uncovered and interpreted before it can be known to anybody. This paper proposes an approach for generating cheating text and hiding cheating text in audio/sound file this high capacity audio algorithm based on the wavelet packet transform with adaptive hiding in LSB (Least Significant Bits). The adaptive hiding is determined depend on the cover signal strength and bits block matching between message and cover signals.

Keywords— Audio hiding wavelet packet transform, Data Hiding data, least significant bit. Adaptive hiding, Steganalysis

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Abstract— Global industrialization has badly effect on environment and the entire biospheres. This distraction of the ecosystem has a hazardous effect on health of human and other organisms. Efforts should be made for dense vegetation of heavy metal bioaccumulation plants at the contaminated soil so that they can remove pollution and also give eco-green pleasant sense. Purpose of this study was to emphasize the phytoremediation technique for the industrial area. In the present research, effects of increasing concentrations of heavy metals in soil, on species in vitro was investigated and results showed that Datura inoxia can tolerate higher concentrations of four toxic heavy metals like Pb, Cd, Cr and Ni indicating its phytoremediation potential. The study revealed that for each metal Datura inoxia had given better response in case of survival, which indicates its importance as a plant suitable for phytoremediation of heavy metal contaminated area.

Keywords— Biosphere, Bioaccumulation, Cadmium, Chromium, Ecosystem, Lead, Nickel, Phytoremediation

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Abstract— Landolphia dulcis is a flowering plant in the family Apolynaceae. It is a stout woody perennial climbing shrub that grows up to 10 metres. Gas chromatography – mass spectrometry analysis was carried out on the ethanol leave extract of Landolphia dulcis. The gas chromatogram showed the presence of nine compounds. The molecular mass of the compound were established based on the molecular ion in the mass spectra. The compounds were proposed based on comparison with National Institute of Standards and Technology (NIST) database. The suggested compounds are furan-2-ylmethanol (0.63%), 2-ethyl-2-hexen-1-al (0.61%), 7-oxooctanoic acid (61.18%), methyl 14-methylpentadecanoate (2.26%), hexadecanoic acid (5.20%), hexadecanoic acid, ethyl ester(2.76%), 9,12-Octadecadienoic acid, methyl ester (9.66%), niacin (13.84%) and 9,12,15-octadecatrien-1-ol (3.86). This study therefore justifies the traditional use of the Landolphia dulcis in the treatment of diseases.

Keywords— Bioactivity, ethanol, extract, gas chromatography, Landolphia dulcis, mass spectrometry

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