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Jadhav S.S.,Commerce and Science College | Shirsath S.E.,Dr. Babasaheb Ambedkar Marathwada University | Toksha B.G.,Dr. Babasaheb Ambedkar Marathwada University | Patange S.M.,Shrikrishna Mahavidyalaya | And 2 more authors.
Physica B: Condensed Matter | Year: 2010

The electric properties of Ni1-xZnxFe2O4 ferrites (with x=0.0-0.7, in steps of x=0.1) prepared by wet chemical co-precipitation method have been studied as a function of frequency, temperature and composition. The broad XRD peaks of green samples and TEM image confirm the nano-dimensional nature of the prepared samples. Dispersion in the dielectric constant with frequency is observed and dielectric loss also shows decrease in its value with increase in frequency. The dielectric loss tangent was found to increase with frequency. Dielectric constant (ε′), dielectric loss (ε″) and loss tangent (tan δ) show strong temperature dependence at all frequencies. The temperature dependent results indicate that the values of ε′, ε″ and tan δ increase with increase in temperature. © 2010 Elsevier B.V. All rights reserved.

Pathan D.M.,Shrikrishna Mahavidyalaya | Bhure D.B.,Bss Arts And Science College | Padwal N.D.,Dr Bam University | Jadhav B.V.,Dr Bam University | Singh S.P.,P.A. College
Proceedings of the National Academy of Sciences India Section B - Biological Sciences | Year: 2011

The present study deals with morphology and taxonomy of the cestode Uncibil ocularis osmanabadensis n.sp. from the marine fish Aetomylaeus nichoffii from West Coast of Maharashtra. The species has been compared with U. trigonis Southwell, 1925, U. indica Subhapradha, 1955, U. aurangabadensis Deshmukh and Shinde, 1975, U. Soulthwelli Shinde, 1976, U. thapari Deshmukh 1979, U. Somnathi, Deshmukh, 1979, U. bombayensis Jadhav, Shindl & Phad, 1984, U. Shastri Jadhav, Shinde, Murlidhar & Mohekar, 1989, and U. ranuae Pawar and Jadhav, 2005. Histopathology of the cestode has also been studied.

Kulkarni D.R.,Shrikrishna Mahavidyalaya | Deshpande M.N.,Nes Science College
Research Journal of Chemistry and Environment | Year: 2013

Metal chelates of ligand 4-(N-methyl-2, 2-dichloroacetamido) phenyl-2-furoate have been synthesized and characterized by elemental analysis, molar conductivity, magnetic moments, IR, 1H NMR, UV-visible, EPR, TG/DTA and powder XRD. Copper and cobalt complexes have 1:1 stoichiometries while chromium complex has 1:2 stoichiometry. Metal chelates have considerable influence on organic carbon, total nitrogen, phosphorus and potassium content and percent weight loss. After decomposition, C: N ratio of the organic matter was appreciably improved compared to non-decomposed organic matter.

Kulkarni D.R.,Shrikrishna Mahavidyalaya | Muley M.R.,Nes Science College | Deshpande M.N.,Nes Science College | Ardhapurkar S.S.,Arts and Commerce Mahila Mahavidyalaya
International Journal of Pharma and Bio Sciences | Year: 2010

Cu(II), Co(II)and Cr(III) complexes of 2, 4 diamino-5 (3, 4, 5 Trimethoxy benzyl) pyrimidine have been synthesized and characterized by elemental analysis, molar conductivity, magnetic moments, IR, 1HNMR, UV-visible, EPR, TG/DTA and powder XRD. Copper complex had 1:1 stoichiometrty where as cobalt and chromium complexes have 1:2 stoichiometries. The influence Cu(II) complex on germination of Bengal gram (Cicerarientinum) (Dollar), Groundnut (Arachis hypogaea) (SB XI), Soyabean (Glycine max)(Clark) and Pea(Pisumsativaum) (Aarkil)seeds from local Varieties have been investigated. Complex was found to exhibit enhanced activity compared to ligand TBPD and metal salts.

More S.S.,Yashwantrao Chavan Mahavidyalaya | Kadam R.H.,Shrikrishna Mahavidyalaya | Mane D.R.,Shrikrishna Mahavidyalaya | Bichile G.K.,Dr. Babasaheb Ambedkar Marathwada University
Central European Journal of Chemistry | Year: 2010

A series of CoAlxCrxFe2-2xO4 systems (x = 0.1 to 0.5 in steps of x = 0.1) spinel ferrites have been synthesized successfully using wet chemical co-precipitation technique. The samples were characterized by X-ray diffraction (XRD), infrared spectroscopy (IR) and magnetization measurements. The powder XRD patterns confirm the single phase spinel structure for the materials synthesized. X -ray diffraction measurements were performed to yield the lattice constant as function of the amount x corresponding to Al-Cr substitution. Lattice parameters, X-ray density, bulk density and particle size decrease whereas porosity increases with the increase in Al-Cr content, 'x'. Infrared studies show two absorption bands at about 400 cm-1 and 600 cm-1 for octahedral and tetrahedral sites, respectively. Saturation magnetization decreases with the increase in Al-Cr content x. AC magnetic susceptibility measurements were carried out as a function of temperature to measure the Curie temperature, which was found to decrease with Al-Cr content x. The decrease of Curie temperature has been explained by A-B interaction. © 2010 Versita Warsaw and Springer-Verlag Wien.

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