Vol. 77, A, Part I ( January to March ) 2007

CONTENTS

Review Article

Indian equatorial electrojet based on the study of Kodaikanal record – A review 

R.G. Rastogi, F.N.A.Sc….1

Chemistry

Contribution of  π conjugation electron and -CH3 group of aromatic compounds for upper consolute temperature (UCT) of immiscible solvent phases

Man Singh….17

Speciation of cobalt (II) and nickel (II) ternary complexes of L-glutamine and succinic acid in DMF-water mixtures

A. Ramakrishna and G. Nageswara Rao….21

Use of 6-chloro-3-hydroxy-2-(2-thienyl)-4H-chromen-4-one as an analytical reagent for the spectrophotometric determination of thorium

Amita Garg and L.R. Kakkar….27

Mathematics

Clustering offices of a company to internet service providers

Satya Prakash, A. Madhusudan and Kunal….31

Reflection and transmission at an interface between viscous liquid and cracked elastic solid

Baljeet Singh….37

Oscillatory heating of a horizontal fluid layer in a vertical magnetic field 

B.S. Bhadauria….45

A study of a system of biorthogonal polynomials suggested by Konhauser polynomials

S.K. Raizada and V.K. Khare….53

Physics

Pressure derivatives of bulk modulus of cuprous halides

G. Misra, S. Gupta and  S.C. Goyal….59

Dielectric relaxation study of mixtures of edible saturated fat and hydrogenated fats using microwaves

Shilpi Agarwal and Deepak Bhatnagar….65