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Vol. 40, No. 1, January 1993
Page. No.
Algebraic structure of Nambu mechanics — Debendranath Sahoo and M. C. Valsakumar
Chaos and curvature in a quartic hamiltonian system — M. P. Joy and M. Sabir
State reduction theories, their classical analogs and some comments — A. M. Jayannavar
Inflationary solutions in general scalar tensor theory of gravitation — A. Banerjee, S. B. Dutta choudhury, N. Banerjee and A. Sil
On training feedforward neural networks — Subhash Kak
Dynamic microscopic basis for IBM-2: A new approach — Subrata Sarangi and Jitendra C. Parikh
Measurement of angular distribution of M shell fluorescent X-rays excited by 5.95 keV photons in thorium — K. S. Kahlon, K. L. Allawadhi and B. S. Sood
Handling of intrinsic divergence in the orthogonal gradient method of orbital optimization in an MC-SCF framework and geometry optimization in pathological cases: I (propynal in excited states) — C. Medhi, S. P. Bhattacharyya and K. K. Das
Rapid communication

On the solution of an anisotropic nonquadratic potential —
S. S. Vasan, M. Seetharaman and K. Raghunathan
Vol. 40, No. 2, February 1993

Internal pressure, ultrasonic velocity and viscosity of multi-component liquid systems — J. D. Pandey, A. K. Shukla, Neelima Tripathi and
G. P. Dubey
Dielectric properties of Pb(Mg1/4Zn1/4Nb1/2)O11/4 — S. Sharma, R. N. P. Choudhary and R. Sati
Electrical and photo-electrcal properties of a chalcopyrite semiconductor AgInSe2 — Navdeep Goyal
Optical mode-coupling in a ring due to a back-scatterer —
A. Venugopalan, Deepak Kumar and R. Ghosh
High resolution optogalvanic study in nitrogen discharge — P. R. Sai Kumar, B. Ambadi, V. P. N. Nampoori and C. P. G. Vallabhan
Critical current densities of high pressure oxygen sputtered thin films of YBa2Cu3O7-x by non-resonance rf absorption method — V. V. Srinivasu, S. V. Bhat, G. K. Muralidhar, G. Mohan Rao and S. Mohan
Simple and inexpensive 3He insert for an ac susceptometer —
S. Ramakrishnan, K. Ghosh and Girish Chandra
Establishment of the mercury fixed point around 0°C using volumetric method — J. K. N. Sharma and A. K. Bandyopadhyay
Rapid communications

Crystal structure of solic C70 — M. C. Valsakumar, N. Subramanian, M. Yousuf, P. Ch. Sahu, Y. Hariharan, A. Bharathi, V. Sankara Sastry, J. Janaki, G. V. N. Rao, T. S. Radhakrishnan and C. S. Sundar
Effect of dissolved air content on single bubble sonoluminescence — Vijay H. Arakeri
Vol. 40, No. 3, March 1993

Algebras of creation and destruction operators — A. K. Mishra and G. Rajasekaran
A JWKB analysis of the sextic anharmonic oscillator in d dimensions —
S. S. Vasan, M. Seetharaman and L. Sushma
Hyperspherical harmonics approach to the trinucleon system with Red soft core potential: Calculation of geometrical structure coefficients — Tapan Kumar Das and Satadal Bhattacharyya
Adsorption on model fractal surfaces — Harjinder Singh and Ranbir Singh
String cosmology in higher dimensional spherically symmetric space-time — Subenoy Chakraborty and Ashok Kr. Chakraborty
Cross-section sum rules and inequalities in a quark model for light and heavy flavour productions — D. K. Choudhury and Pratibha Das
Measurement of excitation functions and mean projected recoil ranges of nuclei in α-induced reactions on F, Al, V, Co and Re nuclei —
M. Ismail
Symmetric scattering in e±-H ionization collisions — J. N. Das and Samita Seal
Vol. 40, No. 4, April 1993

On a simple derivation of master equations for diffusion processes driven by white noise and dichotomic Markov noise — V. Balakrishnan
Floquet states of a periodically kicked particle — A. K. Sikri and
M. L. Narchal
Gravitational field of a tachyon in a de Sitter universe —
K. S. Virbhadra
Astrophysically significant solutions of the Einstein and Einstein-Maxwell equations from the Laplace's seed — K. C. Das and
S. Chaudhuri
Strange solitons in a chiral quark-meson model — J. Segar and
M. S. Sri Ram
Prompt neutron emission spectra and multiplicities in the thermal neutron induced fission of 235U — M. S. Samant, R. P. Anand, R. K. Choudhury, S. S. Kapoor, K. Kumar, D. M. Nadkarni and A. Saxena
Collective dipole oscillations in atomic nuclei and small metal particles — R. S. Bhalerao and Mustansir Barma
Electron impact ionization of Zn+ and Ga+ — Gopaljee,
S. K. Shrivastava and B. N. Roy
Rapid communication

Rotational excitations of NH4 In (NH4)xK1-xI — S. L. Narasimhan,
R. Mukhopadhyay
Vol. 40, No. 5, May 1993

Simulation of X-ray diffraction patterns for silk fibres using paracrystalline statistics — R. Somashekar and R. Gopalkrishne Urs
Infrared absorption in defect induced anharmonic solids — C. P. Painuli Jagdish chandra and B. D. Indu
Pressure-induced amorphization of Gd2(MoO4)3: A high pressure Raman investigation — A. Jayaraman, S. K. Sharma and S. Y. Wang
High pressure investigations on amorphous selenium — N. V. Chandra Shekar, M. Yousuf, P. Ch. Sahu, M. Mahendran and K. Govinda Rajan
Electrical properties of nickel-doped arsenic trisulphide — Navdeep Goyal, Rajni Shukla and Manohar Lal
TDPAC studies of Hf doped YBCO — S. Govindaraj, M. Premila, Padma Gopalan and K. P. Gopinathan
Compton profile of molybdenum — B. K. Sharma, B. L. Ahuja, Hanuman Singh and F. M. Mohammad
Rapid communication

A generalized optimization of Monte Carlo particle transport schemes — A. V. Starkov and P. K. Sarkar
Comment

Comment on "surface enhanced Raman scattering of 2-cyanopyridine adsorbed on silver colloidal particles — R. A. Yadav
Vol. 40, No. 6, June 1993

Review

Parton distributions, small-x physics and the spin structure of the nucleon — E. Reya
Research Articles

WKB approximation in complex time — S. Biswas and J. Guha
Stability of quark gluon plasma to Nielsen-Olesen mode — Vishnu M. Bannur and Predhiman K. Kaw
Effective collison strengths among the fifteen lowest states of FeXVII — Man Mohan
Rapid communication

Flavour democracy calls for the fourth generation — Amitava Datta