Mahapatra R.,Siksha O' Anusandhan University |
Ray S.K.,Ravenshaw University
International Journal of Pharma and Bio Sciences | Year: 2013
Excess free energy of mixing and excess molar polarization in the binary mixtures of alcohols in non polar solvents like n-pentane, n-hexane, n-heptane and cyclohexane are evaluated considering polar-polar interaction only and polar-polar interaction with polarnon polar interaction. The important observation obtained from the calculation of excess free energy and excess molar polarization clearly indicates that polar-non polar interaction in comparison to polar-polar interaction bears a major role. The decrease in excess free energy after 0.2 mole fraction of polar liquids is due to the formation of domain barriers of non polar molecules in polar molecules which prevents the induced spontaneous polarization in polar liquids. The excess free energy and excess molar polarization is more in n-pentane and n-heptane as induced polarization plays a vital role due to the presence of an odd number of carbon atoms in n-pentane and nheptane.
Naik S.K.,Ravenshaw University |
Chand P.K.,Utkal University
Plant Cell Reports | Year: 2011
The past 30 years have witnessed a series of systematic biotechnological advances made in pomegranate. These encompass optimization and establishment of in vitro culture techniques including micropropagation, somatic embryogenesis, synthetic seed production, plant regeneration via callus-mediated shoot organogenesis, adventitious shoot regeneration, anther culture, tetraploid induction and genetic transformation. This review attempts to provide a comprehensive account on the tissue culture-mediated biotechnological interventions made in pomegranate aimed at complementing conventional programmes for improvement of this nutraceutically important fruit crop. © 2010 Springer-Verlag.
Goswami S.,Ravenshaw University |
Swain B.K.,Utkal University
Journal of Environmental Biology | Year: 2012
The environmental noise in some commercial banks of Balasore, in terms of standard noise indices was worked out in the present study. Noise pollution was assessed in twenty different commercial banks of the city on 31st August, 2010 and during first week of September, 2010. The present noise monitoring was conducted with the help of sound level meter, which was calibrated acoustically using an external reference source, and placed over the microphone. It is inferred that the noise levels were more than the permissible limit i.e. 50 dB as prescribed in USA in all the investigated banks of Balasore and the maximum noise levels were around double of the said permissible limit, which is a contradiction with that of developed countries. Analysis of variance was also computed for all the banks during peak hour (10a.m.-12noon). The mean values of noise levels in different banks ranged from 75.5 to 90dB; from 69 to 83.6dB and 71.5 to 83.5dB during 10a.m.-12noon, 12-2p.m. and 24p.m., respectively. It was categorically observed that noise levels were more during 10a.m.-12noon than other investigated time intervals in all the 20 investigated banks. It is imperative to mention here that such an attempt of assessing noise in banks is first of its kind in India. © Triveni Enterprises.
Mohapatra H.,Kaptipada College |
Goswami S.,Ravenshaw University
Asian Journal of Water, Environment and Pollution | Year: 2012
Noise assessment is carried out in various residential, commercial and industrial places in and around Belpahar and Brajarajnagar of Ib River coalfield. The average noise intensities at various residential places range from 57.10 to 63.25 dB during day time (6 am-10 pm) and from 46.77 to 56.22 dB during night (10 pm-6 am). It clearly demonstrates that the noise levels are in close proximity or beyond the permissible limit. Though the average noise intensities at various commercial and industrial places are within the permissible limit, the Lmax noise values are more than the permissible limit. Analysis of variance is also computed for different residential, commercial and industrial places to infer the level of significance.
Jena S.,Utkal University |
Jena S.,Ravenshaw University
Neurological Sciences | Year: 2015
The present study reports the effect of 6-n-propylthiouracil (PTU)-induced hypothyroidism on oxidative stress parameter, lipid peroxidation (LPx) and major antioxidant enzyme expressions such as superoxide dismutase (SOD: SOD1 and SOD2) and catalase (CAT) in cerebral cortex rat brain during postnatal persistent (90 days PTU treatment from birth) and transient (30 days PTU treatment from birth followed by PTU withdrawal for 60 days) hypothyroidism. Enhanced level of LPx was observed in transient hypothyroid rats with respect to control and persistent hypothyroid rats. Significantly increased activity of SOD and expression of SOD1 were observed in cerebral cortex of both persistent and transient hypothyroid rats as compared to control. However, unaltered translated level of SOD2 was observed among the groups. Activity of CAT was increased in transient hypothyroid rats, whereas translate level of CAT was increased in both the regions of persistent as well as transient hypothyroidism. The histoarchitecture of cerebral cortex clearly showed a decline in neuronal migration with neurons packed together in both persistent and transient hypothyroid rats as compared to control. These results suggest that deprivation of thyroid hormone modulates redox status and causes oxidative stress in rat brain cerebral cortex during postnatal development and maturation. © 2015, Springer-Verlag Italia.