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Kushwaha R.,Government Higher Secondary School | Kushwaha B.P.,GMR Chhattisgarh Energy Ltd.
Indian Journal of Environmental Protection | Year: 2015

To carryout surface water quality of the area, samples from 4 different ponds were taken during monsoon season, post-monsoon, winter season and pre-monsoon in year 2012-13. The studied water bodies (ponds) are located near about an integrated steel and power plant in new Raipur area, Chhattisgarh. The water quality parameters, like pH, TDS, total hardness, alkalinity, chloride, fluoride, sulphate, nitrate, calcium, magnesium and iron were analyzed in the present study. The pH, TDS, total hardness, alkalinity, chloride, sulphate, nitrate, calcium and magnesium were analysed in the the prescribed norms. Fluoride concentration in sample SW1, SW2 and SW4 found slightly higher than desired limit but under permissible limit as prescribed by Bureau of Indian Standard (2012). Iron was found in range between 0.54 to 1.24 mg/L which is higher than permissible limit in all the samples. The higher concentration of iron may be due to deposition of iron mixed suspended particulate matter from atmosphere to surface, that is emitted from nearest an integrated steel and power plant. Maximum iron concentration found in the sample SW1 (Serikheri pond) which is located in the downwind direction with respect to the plant where dispersion of air pollutants may be greater than other location. ©2015 - Kalpana Corporation.


Karthikeyan S.,Chikkanna Government Arts College | Babu Rajendran A.,Government Higher Secondary School
Nature Environment and Pollution Technology | Year: 2010

The adsorption of Rhodamine B (Basic dye) on Leucaena leucocephala seed shell waste carbon was investigated to assess the possible use of this adsorbent for the processing of dyeing industry wastewater. The influence of various factors such as initial dye concentration, agitation time and temperature on the adsorption capacity has been studied. The percentage removal of dye is observed to decrease with the increase in initial dye concentration. With increase in temperature the adsorption of dye also increases, indicating endothermic nature of the reaction. Adsorption isothermal data could be interpreted by the Langmuir and Freundlich equations. Kinetic data have been studied using Elovich and Pseudo-second order equations for understanding the reaction mechanism.


Rasool S.,University Of Kashmir | Rasool V.,Government Medical College | Naqvi T.,Government Higher Secondary School | Ganai B.A.,University Of Kashmir | Shah B.A.,CSIR - Central Electrochemical Research Institute
Tumor Biology | Year: 2014

Colorectal cancer is a common disease in both men and women (being the third most common cancer in men and the second most common among women) and thus represents an important and serious public health issue, especially in the western world. Although it is a well-established fact that cancers of the large intestine produce symptoms relatively earlier at a stage that can be easily cured by resection, a large number of people lose their lives to this deadly disease each year. Recent times have seen an important change in the incidence of colorectal cancer in different parts of the world. The etiology of colorectal cancer is multifactorial and is likely to involve the actions of genes at multiple levels along the multistage carcinogenesis process. Exhaustive efforts have been made out in the direction of unraveling the role of various environmental factors, gene mutations, and polymorphisms worldwide (as well as in Kashmir-"a valley of gastrointestinal cancers") that have got a role to play in the development of this disease so that antitumor drugs could be developed against this cancer, first, and, finally, the responsiveness or resistance to these agents could be understood for combating this global issue. © 2014 International Society of Oncology and BioMarkers (ISOBM).


Roxy M.S.,Sree Narayana College | Sumithranand V.B.,Government Higher Secondary School | Renuka G.,The Kerala State Council for Science
Journal of Earth System Science | Year: 2014

Soil heat flux is an important input component of surface energy balance. Estimates of soil heat flux were made in the year 2008 using soil temperature data at Astronomical Observatory, Thiruvananthapuram, south Kerala. Hourly values of soil heat flux from 00 to 24 LST are presented for selected days typical of the winter, pre-monsoon, SW monsoon and NE monsoon seasons. The diurnal variation is characterized by a cross-over from negative to positive values at 0700 h, occurrence of maximum around noon and return to negative values in the late evening. The energy storage term for the soil layer 0-0.05 m is calculated and the ground heat flux G* is estimated in all seasons. Daytime surface energy balance at the surface on wet and dry seasons is investigated. The average Bowen's ratio during the wet and dry seasons were 0.541 and 0.515, respectively indicating that considerable evaporation takes place at the surface. The separate energy balance components were examined and the mean surface energy balance closure was found to be 0.742 and 0.795 for wet and dry seasons, respectively. When a new method that accounts for both soil thermal conduction and soil thermal convection was adopted to calculate the surface heat flux, the energy balance closure was found to be improved. Thus on the land surface under study, the soil vertical water movement is significant. © Indian Academy of Sciences.


Roxy M.S.,Sree Narayana College | Sumithranand V.B.,Government Higher Secondary School | Renuka G.,The Kerala State Council for Science
Journal of Earth System Science | Year: 2014

Soil moisture is an important parameter of the earth’s climate system. Regression model for estimation of soil moisture at various depths has been developed using the amount of moisture near the surface layer. The estimated values of soil moisture are tested with the measured moisture values and it is found that the estimations are comparable with the observations. The variation of soil thermal properties with the amount of moisture in isohyperthermic ultisols has been investigated at a tropical site in south Kerala for the year 2008. The soil temperatures at 0.05, 0.10, 0.20, 0.30, and 0.50 m depths and soil moisture at 0.05 and 0.10 m are measured using the hydrometeorological data acquisition system installed at the observational site. For soil water contents ranging between 11 and 42% in the soil layer of depth 0.05–0.10 m, the mean values of the heat capacity, thermal diffusivity, thermal conductivity, and thermal admittance obtained were 2.2466 × 10−6 Jm−3K−1, 0.4238 × 10−6 m2s−1, 0.9658 Wm−1K−1, 2.1517 Jm−2s−1/2K−1, respectively. The magnitudes of the diurnal soil thermal parameters showed strong association with the levels of the water content. The thermal diffusivity was found to increase with the amount of soil moisture, up to about 22% of the volumetric water content, but fell as the water content further increases. Similar patterns of the soil moisture levels were noticeable both for the thermal conductivity and admittance. © Indian Academy of Sciences.


Rai B.K.,har University | Kumar A.,K C T C College | Baluni A.,Government Higher Secondary School
Oriental Journal of Chemistry | Year: 2012

Schiff base complexes of general formula [M(MDES)2X2] where M = Co(II), Ni(II) and Cu(II), MDES = 1-methyl- 2, 6 diethyl piperidone semicarbazone and X = Cl-, Br-, I- and NO3 -, have been synthesized. The ligand as well as metal complexes were characterized by elemental analyses, IR spectra, electronic spectra, molar conductivity and magnetic susceptibility measurements. On the basis of above observations it has been observed that ligand acts as neutral bidentate manner and coordination proposed through azomethine nitrogen and carbonyl oxygen of semicarbazone moiety. The remaining coordination centres are satisfied by anions such as Cl-, Br-, I- and NO 3 -. On the basis of electronic spectral data and magnetic susceptibility data the gometry of the complexes tentatively proposed octahedral. Antibacterial activity of ligand and complexes were also determined.


Rai B.K.,L N T College | Vidyarthi S.N.,J P University | Prakash O.,J P University | Baluni A.,Government Higher Secondary School
Oriental Journal of Chemistry | Year: 2013

A series of complexes of the type [M(EHPQH)2X2] where M = Co(II), Ni(II) and Cu(II), EHPQH=2-ethyl, [3(hydroxypropyl)]-3, 1 4H quinazoline -4-hydrazone, X= Cl-, Br-, I- and No-3 -. The geometry of the complexes have been elucidated in the light of molar mass, elemental analysis, IR, electronic Spectra, molar conductance and magnetic susceptibility. The measured molar conductance value indicates that the complexes are non-electrolytic in nature. The above observation indicates that Schiff bases EHPQH behave as bidentate ligand and coordination proposes through azomethine N and oxygen atom of alcoholic group of ligand. The remaining coordination sites are satisfied by negative ion such as Ci-, Br-, I- and NB-. The geometry of the Co(II) and Ni(II) were proposed to be octahedral in geometry whereas Cu(II) complexes were proposed to be distorted octahedral. The Schiff bases and its complexes have been evaluated for their antibacterial activity. The complexes show enhanced antibacterial activity than ligand.


Malla F.A.,Government Higher Secondary School
International Journal of Pharma and Bio Sciences | Year: 2012

Organophosphate pesticides widely used all over the world to control pest. They ultimately make their way into aquatic habitat and proved harmful to fishes and other aquatic flora and fauna. Organophosphate insecticides that kills insects by disrupting their nervous system and is effective against a wide range of plant eating insects. In the present study effect of sub lethal concentration of chlorpyrifos on oxygen carrying capacity of blood in fish, Channa punctatus (Bloch.). The study showed a significant decrease in the oxygen carrying capacity of blood after 24hrs. 48hrs.,72hrs. and 96hrs. respectively, when compared to control group.


Arunachalam N.,Government Higher Secondary School | John Peter A.,Government Higher Secondary School | John Peter A.,Kyung Hee University | Yoo C.K.,Kyung Hee University
Journal of Luminescence | Year: 2012

Magnetic field induced exciton binding energy is investigated in a strained InAs/GaAs quantum wire within the framework of single band effective mass approximation. The strain contribution to the potential is determined through deformation potentials. The interband emission energy of strained InAs/GaAs wire is investigated in the influence of magnetic field with the various structural parameters. Magnetic field induced photoionization cross section of the exciton is studied. The total optical absorption and the refractive index changes as a function of normalized photon energy between the ground and the first excited state in the presence of magnetic field are analyzed. The optical absorption coefficients and the refractive index changes strongly depend on the incident optical intensity and the magnetic field. The occurred blueshift of the resonant peak due to the magnetic field will give the information about the variation of two energy levels in the quantum well wire. The optical absorption coefficients and the refractive index changes are strongly dependent on the incident optical intensity and the magnetic field. © 2012 Elsevier B.V.


Arunachalam N.,Government Higher Secondary School | Woo Lee C.,Kyung Hee University
Physica E: Low-Dimensional Systems and Nanostructures | Year: 2011

Pressure induced binding energy of a hydrogenic impurity in an InAs/GaAs quantum wire is investigated. Calculations are performed using Bessel functions as an orthonormal basis within a single band effective mass approximation using variational method. Photoionization cross-section of the hydrogenic impurity in the influence of pressure is studied. The total optical absorption and the refractive index changes as a function of normalized photon energy between the ground and the first excited state in the presence of pressure are analyzed. The optical absorption coefficients and the refractive index changes strongly depend on the incident optical intensity and pressure. The occurred blue shift of the resonant peak due to the pressure gives the information about the variation of two energy levels in the quantum well wire. The optical absorption coefficients and the refractive index changes are strongly dependent on the incident optical intensity and the pressure. © 2011 Elsevier B.V. All rights reserved.

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