Contents

IN THIS ISSUE

907	In this issue

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EDITORIAL

909	G. N. Ramachandran
	P. Balaram and S. Ramaseshan

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CORRESPONDENCE

911	Health hazards of mosquito repellants
	V. R. Shashidhar
911	The Gujarat earthquake catastrophe – Lessons to be learnt for disaster preparedness
	G. S. Roonwal
912	Taxonomy in India
	V. Sundaresan, K. Kathiravan, S. Seshadri and S. Ignacimuthu
913	Regional biosystematic research centres
	T. N. Ananthakrishnan

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NEWS

914	New developments in superconductivity
	K. R. Rao
914	India to host International Chemistry Olympiad in Mumbai
	Arvind Kumar and N. Sathyamurthy

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MEETING REPORTS

915	Indo-French workshop on weak intermolecular interactions
	Ashwini Nangia and Marc Fourmigué

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SCIENTIFIC CORRESPONDENCE

917	Antiplasmodial effect of three medicinal plants: A preliminary study
	C. Usha Devi, Nenna Valecha, P. K. Atul and C. R. Pillai
919	Food of the snail, Pomacea bridgesi,  introduced in India
	G. Aditya and S. K. Raut
921	Endurance exercise-induced alterations in antioxidant enzymes of old albino male rats
	K. Indira Sriram and Ch. Jhansi Lakshmi
923	Population fluctuation of entomopathogenic nematode, Heterorhabditis sp. in  South Andaman as influenced by weather parameters
	G. Shyam Prasad, P. K. Singh and H. R. Ranganath

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GENERAL ARTICLE

925	Technological developments and cotton production in India and China
	Bhagirath Choudhary and Gaurav Laroia

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REVIEW ARTICLE

933	Phytomelanin in Compositae
	A. K. Pandey and M. R. Dhakal

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RESEARCH ARTICLE

941	Forest cover assessment in western Himalayas, Himachal Pradesh using IRS 1C/1D WiFS data
	P. K. Joshi, Sarnam Singh, Shefali Agarwal and P. S. Roy

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SPECIAL SECTION: SOFT CONDENSED MATTER

948	Colloidal dispersions and phase transitions in charged colloids
	B. V. R. Tata
959	Laser-induced freezing in 2-d colloids
	Chinmay Das, Pinaki Chaudhuri, A. K. Sood and H. R. Krishnamurthy
972	Micellar structure and inter-micelle interactions in micellar solutions: Results of small angle neutron scattering studies
	P. S. Goyal and V. K. Aswal
980	Vesicles and worm-like micelles: Structure, dynamics and transformations
	P. A. Hassan, Janaky Narayanan and C. Manohar
990	Uses and applications of microemulsions
	Bidyut K. Paul and Satya P. Moulik
1002	Block copolymers – Their microdomain formation (in solid state) and surfactant behaviour (in solution)
	Pratap Bahadur
1008	Dynamics in thermoreversible polymer gels
	H. B. Bohidar
1018	Recent advances in thermotropic liquid crystals
	N. V. Madhusudana
1026	Elasticity of thermotropic liquid crystals
	Yashwant Singh
1036	Vortex matter and its phase transitions
	P. Chaddah and S. B. Roy

RESEARCH COMMUNICATIONS

1043	Assessment of genetic variability and strain identification of Xanthomonas oryzae pv. oryzae  using RAPD-PCR and IS1112-based PCR
	V. S. Gupta, M. D. Rajebhosale, M. Sodhi, Sukhwinder Singh, S. S. Gnanamanickam, H. S. Dhaliwal and P. K. Ranjekar
1049	Application of PCR  fingerprinting techniques for identification and discrimination of Salmonella  isolates
	Anjali Tikoo, A. K. Tripathi, S. C. Verma, N. Agrawal and Gopal Nath
1053	Dinosaur bones from Meghalaya
	U. K. Mishra and S. Sen
1056	Disturbance time variation of geomagnetic vertical field in the Indian equatorial electrojet
	R. G. Rastogi
1059	Major lineaments and gravity-magnetic trends in Saurashtra, India
	D. C. Mishra, Bijendra Singh, S. B. Gupta, M. R. K. Prabhakar Rao, A. P. Singh, D. V. Chandrasekhar, G. K. Hodlur, M. B. S. V. Rao, V. M. Tiwari, G. Laxman, D. Ch. Venkata Raju, V. Vijay Kumar, R. S. Rajesh, V. Babu Rao and T. R. K. Chetty
1067	A note on palaeomagnetic evidence to show tectonic deformation in the Deccan Volcanic Province of Saurashtra, western India
	S. F. Sethna, B. S. Sethna, Prajakta Kothare, D. R. K. Rao, P. D. Saraf, M. Venkateshwarlu and S. K. Patil

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BOOK REVIEWS

1070	Plant Breeding – Theory and Practice
	reviewed by P. K. Gupta
1071	Annual Review of Phytopathology
	reviewed by H. Shekar Shetty

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ADVERTISEMENTS

1073	National Brain Research Centre The Pratima and Sucharu Chakravarty Samman
1074	14th World Congress of International Society for Laser Surgery and Medicine National Institute of Research on Jute & Allied Fibre Technology
1075	Central Rainfed Upland Rice Research Station
1076	Central Soil Salinity Research Institute National workshop on Nanomaterials: Synthesis, Modifications and Characterization by Ion Beam
1077	Regional Plant Resource Centre National Centre for Biological Sciences
1078	M.S. Swaminathan Research Foundation Kerala Agricultural University Indian Academy of Sciences
1079	Eklavya Electronic Form
1080	Editorial Office

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