The conceptualization of Online Social Networks (OSNs) has been one of the most stimulating events in this century. Asocial network can be considered to be any website or web application which allows for social experience in the form of user interactions. Nowadays, such online social interactions have led to several amusing online activities including posting photos, chatting, tweeting, online shopping, etc. Many popular OSNs such as Facebook, Orkut, Twitter, Linked In and YouTube have become more popular day-by-day. Statistics reveal that currently over 75% of all Internet users are also profoundly engaged in using social media sites. Growth in usage of social media emerged mainly due to the heavy increase in the usage of smart phones, tablets, laptops, and other similar gadgets, which has become one of the defining factors in advancement of human life.

Phytoremediation is one of the biological wastewater treatment methods and it is based on the concept of using plant based systems and microbiological processes to eliminate contaminants from natural system naturally. The aquatic fern Azolla, a small-leaf floating plant that lives in symbiosis with a nitrogen fixing cyanobacteria (Anabaena), is an outstanding plant, thanks to its high biomass productivity along with its tremendous rate per unit area for nitrogen-fixation. This study involved a laboratory experiment on the use of Azolla hybrid in the phytoremediation of a textile waste water from Tirupur textile industry. The physiochemical characteristics of the waste water were determined before and after the treatment. The experiment lasted for four weeks and the rate of reduction was recorded. Azolla is gaining much importance. Various parameters like Biological oxygen demand (BOD), Chemical oxygen demand (COD), Nitrate, Sulphate and Phosphate were observed after the treatment. Other physiochemical parameters tested include Total Dissolved Solids (TDS), Total suspended Solids (TSS) and the pH. It is a cost effective method and the method is Eco friendly. The treated water can be used for irrigation purpose.

Plants put together many different types of secondary metabolites, which have been subsequently exploited by humans for their beneficial role in a varied range of applications. Research interest towards the study of terpenes was mainly due to its pivotal role in our environment. The phytochemical screening process revealed the presence of appreciable quantity of the terpenoids. The thin layer chromatography (TLC) process confirms the possible presence of terpenoids by revealing the development of brown coloured band when treated with perchloric acid the results pertaining to GC-MS analysis led to the identification of number of terpenes from TLC fractions of ethyl acetate extract of Chrysanthemum indicum leaves. GC-MS chromatogram showed 24 peaks, indicating the presence of 24 compounds. The percentage of peak area represents the amount of individual terpenes present in the specified fraction. The most prevailing major compounds are α-pinene, Terpinene, Sabinene, santolina triene, Limonene, 3-Thujanol, Neophytadiene, Phytol.

Antibacterial activity of Solanum trilobatum L was examined against clinical human bacterial pathogens. The butanol and methanol extract of Solanum trilobatum L was endowed with abundance of phytochemical compounds. The zone of inhibition produced by the test organisms indicated their susceptibility to the plant extracts; it was observed that the zone of inhibition varies from one organism to another and from one plant part extract to another. The crude extracts which shows maximum inhibitory effects are subjected to TLC. All the fractions obtained through TLC of Solanum trilobatum L butanol, acetone, methanol and petroleum ether extracts were tested against Streptococcus pyogenes, Staphylococcus aureus, Pseudomonas aeruginosa, Proteus vulgaris, Bacillus subtilis, Salmonella typhimurium, Micrococcus luteus, E.coli. by well diffusion assay. TLC profiling of butanol, acetone, methanol and petroleum ether extracts gives an impressive result that directing towards the presence of number of phytochemicals. All fractions obtained were capable of inhibiting the growth of bacteria, indicating their activity spectrum to be broad. The HPLC results revealed that, in addition to solvent peaks at 1.80 to 2.020 min, there are some compound response peaks obtained at 2.150, 2.777, 2.160 and 2.157 min with respect to butanol leaf pigment, acetone stem pigment, petroleum ether leaf pigment and butanol flower pigment accordingly.

This study conducts a theoretical analysis followed by a synthesis to enhance the excellence of maritime simulator-based training where Briefing, Scenario and De-briefing are the main analytical environment. Synthesizing the Cognitive Load Theory, the Briefing phase is identified as the locale of the Intrinsic Cognitive Load and the Extraneous Cognitive Load which is non-essential to the learning task. This study hypothesizes an information overload in the Briefing phase. The Scenario phase is the center of construction for the Germane Cognitive load where tenets of Vygotsky's Cognitive development theory are synthesized. The Briefing phase is juxtaposed with Vygotsky's ‘cannot do alone’ phase and the Scenario phase with the "Zone of Proximal Development’ where cognitive abilities are mutually built and constructed. Entering the Debriefing stage the cadets will enter the ‘can do alone’ stage. Conclusively, maritime students’ achievement levels during simulator training are enhanced through the application of theories in Education.