jul-dec1999 contents

Preface	1
Quasi-one dimensional electrical conductivity and thermoelectric power studies on a discotic liquid crystal V S K Balagurusamy, S Krishna Prasad, S Chandrasekhar, Sandeep Kumar, M Manickam and C V Yelamaggad	3
The fragmented state of lipid bilayers in water: Discovery of a lower consolute point W Helfrich, B Klösgen and J Thimmel	13
Surface controlled nematic bistability I Dozov and G Durand	25
Surface adsorption and collapse transition of linear polymer chains Yashwant Singh, Sanjay Kumar and Debaprasad Giri	37
Liquid water: A very complex fluid H Eugene Stanley	53
Biology and the flow of molecular information A J Libchaber	85
Phase transitions in Langmuir monolayers K A Suresh and A Bhattacharyya	93
The lamellar and sponge phases of dilute surfactant systems: Structures and defects at equilibrium and under shear Maurice Kleman	107
Phase separated composite films of liquid crystals Valery Vorflusev, Jae-Hoon Kim and Satyendra Kumar	121
Natural optical activity and liquid crystals C Oldano and M Becchi	131
An LCD for the multimedia network age: Polymer stabilized FLCD Shunsuke Kobayashi, Hirokazu Furue and Taiju Takahashi	145
On the 'Listeria' propulsion mechanism F Jülicher, P Chaikin, A Ott, J Prost, R M Golsteyn, E Friederich, D Louvard, V Laurent and M F Carlier	155
Structure and dynamics of charged macromolecules: Minimal representation of biological systems M Muthukumar	171
Driving matrix liquid crystal displays T N Ruckmongathan	199
Molecular structure and chiral liquid crystalline phases B K Sadashiva	213
Linear and nonlinear rheology of wormlike micelles A K Sood, Ranjini Bandyopadhyay and Geetha Basappa	223
Nonequilibrium noise and instabilities in membranes with active pumps Sriram Ramaswamy, John Toner and Jacques Prost	237
Number 2
Trace formula for level density of a spherical billiard Sham Sunder Malik, Manisha Dudeja and Ashok Kumar Jain	243
Genericity and stability of naked singularities arising in an inhomogeneous dust collapse S H Ghate, R V Saraykar and K D Patil	253
New phase modulated solutions for a higher-order nonlinear Schrödinger equation C Nagaraja Kumar and P Durganandini	271
Nuclear magnetic moment: Relativistic mean field description Y K Gambhir and C S Warke	279
Beta decay of ¹²⁵Sb and level structures in ¹²⁵Te M Sainath, K Venkataramaniah and P C Sood	289
An alternative approach to determine the spot-size of a multi-mode laser beam and its application to diode laser beams Rakesh Kapoor, P K Mukhopadhyay, Jogy George and S K Sharma	307
Tunable infrared generation in KTA and applications G C Bhar, P Kumbhakar, A K Chaudhary and U Chatterjee	321
Extended irreversible thermodynamics and the quality of temperature and pressure Anil A Bhalekar	331
Local canted spin behaviour in Co_1.4-xZn_xGe_0.4Fe_1.2O₄ spinels: A macroscopic, mesoscopic and microscopic study M V Subbarao, S M Yusuf, R G Kulkarni and L Madhav Rao	341
Dynamic Jahn-Teller effect in a Fe-N₆ cage molecule K Padmakumar and P T Manoharan	353
Number 3 Proceedings of the International Workshop on Rare Nuclear Processes in Low Energy Heavy Ion Physics (IWRNP-98)
Foreword	363
Nuclear Structure and Dynamics
Nuclear structure studies on halo nuclei by direct reactions with radioactive beams Peter Egelhof	365
Alpha particle evaporation as a probe for dynamical deformations I M Govil	381
Experimental investigations of the nuclear level density by using heavy ion reactions G Viesti, M Lunardon, D Fabris, G Nebbia, M Cinausero, E Fioretto, G Prete, J B Natowitz, K Hagel and R Wada	395
Extremes of nuclear structure S B Patel	405
M1 and E2 band structures in the Sn-Xe-Ba region R Srinivasa Chakrawarthy	407
Fusion-fission dynamics in the superheavy nucleus production G Giardina, P D'Agostino, G Fazio, M Herman, A I Muninov, A Nasirov, G Oliva, R Palamara and R Ruggeri	409
Fluctuations of the second order observables for dissipative processes in ¹⁹F+²⁷Al system I Berceanu, A Andronic, M Duma, D Mois\brevea, M Petrovici, A Pop, V Simion, A Del Zoppo, G d'Erasmo, G Immé, G Lanzanò, A Pagano, A Pantaleo and G Raciti	419
Transition strengths and shapes of 2-qp bands in ⁷⁴Se and ⁷⁶Kr G Mukherjee, P Joshi, S N Roy, S Datta, R P Singh, S Muralithar and R K Bhowmik	425
Structure of neutron-rich nuclei around A @ 100 Maitreyee Saha Sarkar	431
Dissipative processes in light heavy ion collisions A Pop, A Andronic, I Berceanu, M Duma, D Mois\brevea, M Petrovici, V Simion, G Immé, G Lanzanò, A Pagano, G Raciti, R Coniglione, A Del Zoppo, P Piatelli, P Sapienza, N Colonna, G d'Erasmo and A Pantaleo	437
Distinction between pre-formed cluster emission and heavy ion decay by fission G Shanmugam and G M Carmel Vigila Bai	443
Nuclear structure studies of nuclei near N = 80 E Dragulescu, G Semenescu and I Iftimia	447
The simulations of Ca-Ca collisions: Binary break-up, onset of multifragmentation and vaporization Rajeev K Puri and Suneel Kumar	453
Rotational co-existence in selenium isotopes G Shanmugam, V Ramasubramanian and P Arumugam	457
Signature splitting in magnetic rotational bands Amita, Ashok K Jain, Alpana Goel and Balraj Singh	463
Relevance of thermally populated first excited state of ⁴⁴Ti to the abundance problem of Cassiopiea A: A model study Sukhendusekhar Sarkar	469
Nuclear Reactions at Near and Sub-Barrier Energies
Multinucleon transfer reactions G Pollarolo	473
Fusion-fission of light nuclear systems A Szanto de Toledo, N Carlin, N Added, E M Szanto, M G Munhoz, J Takahashi, A Suaide and M M de Moura	483
Heavy-ion induced fission reactions at near-barrier energies - what have we learnt? S Kailas	485
Heavy-ion fusion at low energies Neil Rowley	495
Dynamics of low-energy heavy-ion fusion A M Stefanini	505
Exploiting barrier distributions to investigate breakup effects in the fusion of ⁹Be + ²⁰⁸Pb M Dasgupta, D J Hinde, R D Butt, A C Berriman, C R Morton, J O Newton and K Hagino	513
Some aspects of heavy ion fusion-fission dynamics D V Shetty, R K Choudhury, B K Nayak, D M Nadkarni and S S Kapoor	521
Transfer measurements for the Ti + Ni systems at near barrier energies K M Varier, A M Vinodkumar, N V S V Prasad, P V Madhusudhana Rao, D L Sastry, Lagy T Baby, M C Radhakrishna, N G Puttaswamy, J J Das, P Sugathan, N Madhavan, A K Sinha and D O Kataria	529
Measurement of the ground state 2n pickup probability for ²⁸Si + ⁶⁸Zn and its role in sub-barrier fusion enhancement Vandana Tripathi, Lagy T Baby, P V Madhusudhana Rao, S K Hui, R Singh, J J Das, P Sugathan, N Madhavan and A K Sinha	535
Inclusive and exclusive measurements in the projectile breakup of ⁷Li T Madhusoodhanan, Samit Mandal, M P Sathyavathiamma, Ramani, N G Puttaswamy, T S Mudhole, A Mandal, D K Avasthi, R Shyam and S K Datta	541
Asymmetric barrier model for heavy ion fusion and its relation to channel coupling Basudeb Sahu and C S Shastry	545
Nuclear orbiting and anomalies in nuclear reactions A De, A Mitra, A Ray, S R Banerjee, M Sengupta, A Chatterjee, S Kailas, H S Patel, M G Betigiri and S K Dutta	549
Quasielastic reactions around the Coulomb barrier in ¹⁶O + ¹¹⁸Sn S Saha, Samit K Mandal, M B Chatterjee, B K Sinha and S K Datta	553
Coupled channels calculations for ¹⁸O and ¹⁶O break-up reaction Samit K Mandal and R K Bhowmik	559
Fission fragment angular distributions in 16O + 181 Ta Bivash R Behera, Subinit Roy, P Basu, M K Sharan, S Jena, M Satpathy, S K Datta, L Satpathy and M L Chatterjee	563
Nuclei at Extreme Conditions
A three body approach to study the structural properties of 2-n halo nuclei and the search for Efimov states V S Bhasin	567
Rare cold nuclear processes - A review and some new results Raj K Gupta	577
Astrophysical S-factors from asymptotic normalization coefficients R E Tribble, A Azhari, H L Clark, C A Gagliardi, Y-W Lui, A M Mukhamedzhanov, A Sattaroy, X Tang, L Trache, V Burjan, J Cejpek, V Kroha, S Piskor, J Vincour and F Carstoiu	585
Breakup of ⁸B and the⁷Be (p,g) ⁸ reaction R Shyam and I J Thompson	595
Perspectives from above and beyond the proton drip-line P J Woods	607
Mass measurements of relativistic projectile fragments in the storage ring ESR T Radon, H Geissel, F Attallah, K Beckert, F Bosch, A Dolinskiy, H Eickoff, M Falch, B Franczak, B Franzke, Y Fujita, M Hausmann, M Hellstrom, F Herfurth, Th Kerscher, O Klepper, H-J Kluge, C Kozhuharov, Yu Litvinov, K E G Lobner, G Munzenberg, F Nolden, Yu Novikov, Z Patyk, W quint, H Reich, C Scheidenberger, B Schlitt, J Stadlmann, M Steck, K Summerer, L Vermeeren, M Winkler, Th Winkler and H Wollnik	609
The analysis of reactions leading to synthesis of super heavy elements within the dinuclear system concept E A Cherepanov	619
Proton radioactivity - spherical and deformed C N Davids, P J Woods, D Seweryniak, A A Sonzogni, J C Batchelder, C R Bingham, T Davinson, D J Henderson, R J Irvine, G L Poli, J Uusitalo and W B Walters	631
A rare nuclear decay process: The internal conversion between bound atomic states J F Chemin, T Carreyre, M Aiche, F Attallah, G Bogaert, J P Grandin, M Harston, W E Meyerhof and J N Scheurer	633
Cubic potential models for cluster radioactivity G Shanmugam	635
Fission experiments with secondary beams J Benlliure, S Steinhauser, C Bockstiegel, A Grewe, H-G Clerc, A Heinz, M de Jong, A R Junghans, J Muller, K-H Schmidt and M Pfutzner	637
Statistical fluctuations in hot rotating nuclei M Rajasekaran and D Caleb Chanthi Raj	647
Number 4
Review Article Interesting normal state and superconducting properties of the intermediate valence compound CeRu₂ S B Roy and P Chaddah	659
Research Articles
Dirac current in expanding spacetime N G Sarkar, S Biswas and A Shaw	685
The longitudinal structure function F_L(x, Q²) and the gluon distribution G(x, Q²) at low x Abhijeet Das and A Saikia	701
Relative wavefunctions, vertex functions and coupling constants for the virtual decay of ⁴He V K Sharma and B K Chikara	707
Calculation of magnetic multipole moment integrals using translation formulas for Slater-type orbitals I I Guseinov, B A Mamedov, T Özdogan and M Orbay	727
Photoionization of Al IV (neon-type) from its ground 2s² 2p⁶ ¹ S^e and excited 2s²2p⁵3p^3,1 P^{0 3}S^e states using the R-matrix method Man mohan, M Le Dourneuf, A Hibbert and P G Burke	733
Multiple ionization of argon in coincidence with projectle ions in 60-120MeV Si^q+ - Ar collisions M J Singh, D O Kataria, N Madhavan, P Sugathan, J J Das, D K Awasthi, A K Sinha and R Shanker	743
Pressure dependence of the superconducting state parameters of metallic glass superconductor Mg₇₀Zn₃₀ Manish Gupta, K S Sharma and Lachhman Dass	765
A short range many-body potential for modelling bcc metals M M Ali	775
Pressure-volume calculation in bcc metals using Born stability criteria Piyush Kuchhal and Narsingh Dass	783
Number 5
Research Articles
Group of contact transformations: Symmetry classification of Fokker-Planck type equations P Rudra	795
Adiabatic anholonomy and canonical transformations Jagmeet Singh	807
Starobinsky model in Schrödinger description S Biswas, A Shaw and D Biswas	815
Exact scalar field cosmologies in a higher derivative theory B C Paul	833
¹²C induced transfer reactions on ⁵⁶Fe Hari S Patel, B Srinivasan, B J Roy and M G Betigeri	843
Effect of collimator size and absorber thickness on gamma ray attenuation measurements for bakelite and perspex Gurdeep S Sidhu, Karamjit Singh, Parjit S Singh and Gurmel S Mudahar	851
Centrifugal distortion analysis of the microwave spectrum of allyl isothiocyanate (C-gauche conformer) A I Jaman	857
Ultrashort laser pulse suppression of dissociation in a molecule Man Mohan, Vinod Prasad and Rinku Sharma	863
Energy spectrum of ejected electrons in ionization of hydrogen atoms by electrons J N Das and S Dhar	869
Linear amplifier via the displaced Fock states superposition Gamal M Abd Al-Kader	877
Characteristics of photoconductivity in As-Sb-Se glasses G Mathew and J Philip	891
The kinetic limitation of anti-Stokes luminescence of Er³⁺ and Yb³⁺ doped infrared upconversion materials Sachin K Mahajan, P K Khare and B P Chandra	903
Brief Report
The breaking of O(6) symmetry in ¹¹⁸Xe and ¹²⁰Xe Bir Singh Rawat and P K Chattopadhyay	911
Number 6 Special Issue: Workshop on Cosmology: Observations Confront Theories
Foreword	919
Cosmological Parameters
Cosmological parameters D Narasimha	921
Cepheid distance to the virgo cluster Anwesh Mazumdar	933
The cosmological constant revisited Varun Sahni	937
Topology of the Universe: Background and recent observational approaches Boudewijn F Roukema	945
Cosmic Microwave Background Radiation
Cosmic microwave background radiation anisotropies and data analysis Shiv K Sethi	951
Polarization of the cosmic microwave background radiation T R Seshadri	963
Constraining cosmological parameters through Sunyaev-Zel'dovich surveys Subhabrata Majumdar and Ravi Subrahmanyan	971
Large Scale Structure and Gravitational Clustering
Large scale structure Somnath Bharadwaj	977
Multi-fractal analysis of the galaxy distribution in the Las Campanas red- shift survey T R Seshadri	989
Pancakes and filaments in cosmological gravitational clustering Varun Sahni	995
Dark matter halo cores in hierarchical clustering theories Kandaswamy Subramanian	1001
Galaxy Formation and the High Redshift Universe
The nature of low redshift damped Ly-a systems Nissim Kanekar and Jayaram N Chengalur	1013
Cosmology with the intergalactic medium Biman B Nath	1021
Chemical enrichment at high redshifts Pushpa Khare	1027
Dark Matter
An analysis of 900 optical rotation curves: Dark matter in a corner? D F Roscoe	1033
Gravitational lensing by spiral galaxies D Narasimha	1039
X-ray emission from clusters of galaxies and cosmological parameters K P Singh	1043
Particle dark matter: An overview Palash B Pal	1053
Particle Physics and the Early Universe
Baryogenesis in the early Universe Raghavan Rangarajan	1061
Topological Defects in Cosmology
Topological defects in cosmology Ajit M Srivastava	1069
Topological defects in the left-right symmetric model and their relevance to cosmology Hatem Widyan	1077
A new mechanism of formation of topological defects Supratim Sengupta	1081
Defect correlation in liquid crystal: Experimental verification of cosmological Kibble mechanism Rajarshi Ray	1087
Alternative Cosmologies
The quasi-steady state cosmology: Theory and observations Jayant V Narlikar	1093
Super-String Motivated Cosomological Models
String cosmology Jnanadeva Maharana and Sudipta Mukherji	1105
Parity violation in a gravitational theory with torsion: A geometrical in- terpretation Soumitra Sengupta	1115
String dynamics near a black hole H K Jassal, A Mukherjee and R P Saxena	1121
Gravitational Waves
Detection of gravitational waves using a network of detectors Sukanta Bose, Sanjeev V Dhurandhar and Archana Pai	1125
List of Participants	1137
Subject Index	1139
Author Index	1149