Contents

IN THIS ISSUE

1509	In this issue

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EDITORIAL

1511	Systematic biology in the information age
	P. Balaram

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CORRESPONDENCE

1513	Impact Factor of Indian journals
	N. C. Jain
1514	A case for History and Philosophy of Science in Indian universities
	H. S. Virk
1515	Modernization of agriculture -- A boon or bane?
	R. Umarani and K. Subramaniyan
1516	Legal protection for biotech trials
	Bao-Hong Zhang

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NEWS

1516	President Putin's recent visit to India: The road ahead for Indo-Russian Science and Technology cooperation
	Nirupa Sen

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MEETING REPORT

1518	The Himalayas revisited
	Sridhar D. Iyer and Ranadhir Mukhopadhyay

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RESEARCH NEWS

1520	Early Archaean life in deep-sea hydrothermal ecosystem
	A. V. Sankaran
1523	Radiation resistance in bacteria
	M. K. Chattopadhyay

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OPINION

1523	Disarmament--development dichotomy: Who will bell the cat?
	T. Ramakrishna

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1524	From the archives

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SCIENTIFIC CORRESPONDENCE

1527	Visualization of orchid mycorrhizal fungal structures with fluorescence dye using epifluorescence microscopy
	S. Senthilkumar, K. V. Krishnamurthy, S. John Britto and  D. I. Arockiasamy
1529	Thidiazuron-induced in vitro flowering in Dendrocalamus strictus Nees
	Madhulika Singh, Uma Jaiswal and V. S. Jaiswal

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GENERAL ARTICLE

1531	Incorporating traditional coexistence propensities  into management of wildlife habitats in India
	Arun Venkataraman

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REVIEW ARTICLES

1536	The burden of haemoglobinopathies in India and the challenges ahead
	R. S. Balgir
1548	Plant productivity determinants beyond minerals, water and light: Piriformospora indica -- A revolutionary plant growth promoting fungus
	Archana Singh, Jyotika Sharma, Karl-Heinz Rexer and  Ajit Varma

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SPECIAL SECTION: SCIENCE OF GEMS

1555	A brief overview of gem materials: Natural and  synthetic
	A. Jayaraman
1566	Treated and synthetic gem materials
	James E. Shigley
1572	Synthetic moissanite: A new man-made jewel
	Kurt Nassau

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RESEARCH ARTICLE

1578	Asteroid tetrahedron shape models from spud data
	B. Khushalani

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RESEARCH COMMUNICATIONS

1581	Chronic restraint stress impairs acquisition and  retention of spatial memory task in rats
	Sunanda, B. S. Shankaranarayana Rao and T. R. Raju
1585	Cloning and expression of aceA gene encoding  isocitrate lyase from Mycobacterium tuberculosis
	S. Arvindh Pradheep, Sujatha Narayanan, S. K. Vasan and  P. R. Narayanan
1588	Digital analysis of induced erythrocyte shape changes  in hypercholesterolemia under in vitro conditions
	M. Manjunatha and Megha Singh
1591	Resistance of P-solubilizing Acetobacter diazotrophicus  to antibiotics
	Sarita Mowade and P. Bhattacharyya
1594	K-feldspar metasomatism in granulite-facies rocks of  Palghat region, Kerala: Evidence and implications of  brines in charnockite-forming metamorphism
	Subhash Sukumaran and G. R. Ravindra Kumar
1598	Tree-ring indications of recent glacier fluctuations in Gangotri, western Himalaya, India
	Jayendra Singh and Ram R. Yadav
1602	Complete regeneration of ablated eyestalk in penaeid prawn, Penaeus monodon
	U. M. Desai and C. T. Achuthankutty
1603	Erratum

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BOOK REVIEWS

1604	Implicit Partial Differential Equations
	reviewed by Mythily Ramaswamy
1605	Stochastic Models: Analysis and Applications
	reviewed by S. R. Deshmukh
1605	Seed and Nursery Technology of Forest Trees
	reviewed by H. Y. Mohan Ram
1607	Microbes Minerals and Environment
	reviewed by S. Mishra and P. K. Ghosh

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PERSONAL NEWS

1607	Abraham Pais: Physicist and biographer (1918--2000)  -- An obituary
	Charles Santiapillai

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HISTORICAL NOTES

1609	The quantum, its discovery and the continuing quest
	J. Pasupathy

1614	Random selections

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