IMPACT : International Journal of Research in Applied, Natural and Social Sciences

17-22

Authors: SOFEME R. JEBSON & ANDY N. MOSES

Today synthetic dyes are the choice of acid – base titrimetric analysis, but due to environmental pollution, availability, ease of preparation and cost effectiveness, the search for natural compounds as acid – base indicator started. Uche et al (2014). Allium cepa (Red Onion) skin is one of these compounds being investigated in this study. The ethanolic skin extract of red onion bulb was used as indicator in titrating 0.1M and 0.5M HCL and 0.1M and 0.5M NaOH solutions respectively. The result of the mean equivalent point obtained was compared with that of Methyl Orange and Phenolphthalein indicators. The mean equivalent point of titration of 0.1M HCL and 0.1M NaOH using two drops of red onion skin extract indicator agreed significantly with that of Phenolphthalein indicator with a standard deviation difference of 0.01cm3. Therefore, the ethanolic skin extract of red onion bulbs can substitute or compliment Phenolphthalein indicator for strong acid – strong base titrations. It was also observed that the mean equivalent point of titration of 0.5M HCL and 0.5M NaOH using two drops of ethanolic skin extract of red onion bulbs indicator and two drops of Phenolphthalein and Methyl orange coincided to a great extent with a standard deviation differences of 0.30cm3 for Methyl orange and ethanolic skin extract of red onion bulbs and 0.60cm3 for that of Phenolphthalein and ethanolic skin extract of red onion bulbs respectively. Thus from the results obtained, ethanolic skin extract of red onion bulb can be conveniently employed as indicator in teaching and learning acid – base titrimetric analysis. It is environmentally friendly, easily available, and cost effective and can be prepared with great ease.

41-66

Authors: PANDURANGA MURTHY, G , CHANDRASEKHAR, K.B. & LOKESH, S.

In the present investigation, an attempt has been made to appraise enthno-pharmacology of medicinal plants of B.R. Hill tracts of Chamarajanagara district of Karnataka. The ethno-medicinal plant materials were taxonomically identified and authenticated with standard flora. The selected ethno-medicinal plant drugs, Andrographis serphyllifolia, Discorea hispida, Glycosmis mauritiana, Nothapodytes nimmoniana and Rauvolfia densiflora were subjected for physico-chemical and preliminary phyto-chemical analysis. The physico-chemical analysis and other characteristics features of ethno-medicinal plants indicated the active status of pharmacognostic and efficiency of the plant material. In the study, active phyto-constituents of the five selected ethno-medicinal plant drugs (EMP) of different families and the tribal medicinal formulations (TMF) were recognized and their presence was correlated with the bioactivities of the plants. The phyto-chemicals have two categories i.e., primary and secondary constituents. Primary constituents have chlorophyll, proteins sugar and amino acids. Secondary constituents contain terpenoids, alkaloids, flavonoids, saponins, tannins, glycosides, fixed oils, fats, phyto-sterols and phenolic compounds. The phyto-chemical parameters were analyzed evidently for their active presence in the aqueous extracts followed by organic solvents like ethanol, petroleum ether and methanol extracts. The presence of active secondary metabolites in the extracts of ethno-medicinal plants may have profound activity and justifies the status for preparation of crude potential drug by the tribal people. The phyto-chemical screening of the ethno-medicinal plants showed the presence of alkaloids, flavonoids, terpenoids, saponins, tannins, phenolic compounds and reducing sugars. A. serphyllifolia and D. hispida did not contain cardiac glycosides and coumarins while, G. mauritiana, N. nimmoniana and R. densiflora showed the presence of glycosides, tannins and alkaloids. The findings provided evidence that, crude aqueous and organic solvent extracts of ethno-medicinal plant drugs and TMF contain medicinally important bioactive compounds and it justifies their use in the Tribal Medicinal System (TMS) for the treatment of different relentless ailments apart from wound therapeutics

73-80

Authors: DEBABRATA MISTRY

Education is a fundamental human right. An educated society can facilitate the development of healthy behavior and good communication skills among its members. Education play various vital roles like for citizenship, for democracy, for international understanding and for a new social order. The Canning Subdivision is situated in the north-eastern part of South 24 Parganas District of West Bengal. There are four Community Development (C.D.) blocks. Out of C.D. blocks under the study area, Basanti and Gosaba blocks are dissected by the tidal rivers and estuaries in active deltaic region of Ganges. The main objective of the study is to know the status of education in the area under study. Secondary data have been collected from different official sources. Primary data have been generated through questionnaire based survey following random method of sampling. In the subdivision, Teacher – student ratio in primary level education have reduced over time. The number of schools has increased in the study area. After implementation of various education related schemes by Government the number of students has increased in the Institutions.

87-96

Authors: A. JOHN WILLIAM & T. VIMALA

Banks play a vital role in building the economics of an individual as well as nation. In India banking sector has greater importance as its forms the lifeline of economic activity of both rural and urban areas. So the Changes in stock price volatility of banks will be influencing the individual as well as nation further the study analyzed the a group of select banks and its market volatility by using mean,standerd deviation and beta value using the opening and closing prices

107-116

Authors: KANAK K. BAISHYA, SHIBU BASAK & SUBIR KUMAR DEY

The object of the present paper is to study the extended generalised φ-recurrent LP-Sasakian manifolds. Also the existence of such manifold is ensured by an example