BIO-DATA of Dr. R. K. Mitra

 


Date of Birth 06. 01. 1941

Position held Former Head, Nuclear

Agriculture & Biotechnology

Division, Bhabha Atomic

Research Centre, Mumbai, 400 085

Date of Appointment in BARC 16. 12. 1967

Date of Retirement from BARC 31. 01. 2001


ACADEMIC QUALIFICATIONS :

Degree Year University

M. Sc in Plant Biochem. 1963 Kalyani Univ, WB

Ph. D in Plant Biochem. 1969 ,,

Academic excellence : Awarded a gold medal for standing First Class 1st in M. Sc.

Ph.D. guide: Mumbai University since 1991

POSITION HELD :

Universities/Institutions Year Position

Kalyani Univ. 1963 -‘65 CSIR Research Fellow

Kalyani Univ. 1965 -‘67 DAE Research Fellow

BARC 1967 - 2001 Scientific Officer,

Group Leader, Head of

the Division

Washington Univ. St. Louis 1973 -‘74 Postdoctoral research

IAEA 1971 – 2001 Research coordinators

in various IAEA

sponsored projects and programmes

RESEARCH EXPERIENCE :

Over 37 years. Made significant contributions in genetics of isoenzyme variation and nature of repeated DNA in wheat, regulation of protein synthesis in high protein wheat and rice genotypes, biochemical characterization of ‘high protein traits’, bioenergetics of crop productivity, genetics and molecular biology of seed storage proteins of cereals, legumes and groundnut, biochemistry of lectins, stress proteins and developed isotope-based technology for in vivo studies of amino acid metabolism and enzymatic exchange of tritium with carbon atom in proline metabolism and transaminases.


Responsible for coordinating research mainly in three areas – mutation breeding and agriculture, plant biotechnology and enzyme biotechnology. Mutation breeding research is specifically designed to induce mutation and use of desirable mutants in cross breeding programme of pulses, groundnut, mustard and rice.


PUBLICATIONS : Over 95 publications in Journals, Chapters of books, Proceedings of International and National Symposia .


Scientometric Portrait of Ranjit Kumar Mitra”, VL Kalyane,ER Prakasan,Vijay Kumar,ILA Bulletin 2001,37(2),pages 39-53. This paper gives scientific achievement, research impact and collaboration of Dr. Mitra’s scientific career.( please see eprints.rclis.org/archive/00001067/01/manuscript-R.K._Mitra.pdf

MAILING ADDRESS :


Flat No. 6, Madhulika , Plot No. 37, Sector 9A, Vashi, Navi Mumbai, 400 703.

Tel. 022 – 766 8555. E mail : babumitra@sify.com ran__41@yahoo.co.in



List of research publications of Ranjit K Mitra


Papers published in International Journals


1. R. Mitra and S.P. Sen. Stimulation of uptake of water and ions by indolyl-3-acetic

acid: its dependence on nucleic acid and protein synthesis Nature 207, 861-862

(1965).

2. R. Mitra and S.P. Sen. The dependence of flowering on nucleic acid and protein

synthesis. Plant & Cellphysiology 7, 167-170(1965).

3. R.K.Mitra,D.R. Jagannath and C.R. Bhatia. Disc electrophoresis of analogous

enzymes in Hordeum. Phytochemistry 9, 1843-1850(1970).

4. R. Mitra and C.R Bhatia. Isozymesand polyploidy.1. Qualitative and quantitative

isozyme studies in the Triticinae. Genetical Research (Cambridge) 18, 57-69 (1971).

5. R.Mitra and C.R. Bhatia. Repeated and non-repeated nucleotide sequence in diploid

and polyploid wheat. Heredity 31,251-262 (1973).

6. R. Mitra, RD. Gross and JE. Varner. An intact tissue assay for enzymes that labilize

C-H bonds. Analytical Biochemistry 64, 102-109(1975).

7. R.Mitra,J Burton and JE. Varner. Deuterium oxide as a tool for the study of amino

acid metabolism. Analytical Biochemistry 70, 1-17 (1976).

8. R Mitra. P. Narahari, T. Gopalakrishnaand C.R Bhatia. Intervarietal differences in

some metabolic functions associated with protein accumulation in rice grains.

Theoretical and Applied Genetics 48, 145-151 (1976).

9. T. Gopalakrishna,R Mitra and C.R. Bhatia. Seed globulins of Cajanus cajan.

Qualitas Plantarum (Netherlands)27,313-325 (1977).

10. RK. Mitra, C.R. Bhatia and R. Rabson. Bioenergetic cost of altering the amino acid

composition of cereal grains. Cereal Chemistry 56,249-252 (1979).

11. R Mitra and C.R. Bhatia. Bioenergetic considerationsin the improvement of oil

content and quality in oil seed crops. Theoretical and Applied Genetics54, 41-47

(1979).

12. C.R Bhatia, R. Mitra and R. Rabson. Bioenergetic and energy constraints in

Increasing cereal productivity. Agricultural Systems 7, 105-111(1981).

13. R Mitra and C.R. Bhatia. Bioenergetic considerations in breeding for insect and

pathogen resistance in plants. Euphytica 31,429-437 (1982). .

14. C.R Bhatia and R. Mitra. Relevance of semi-dwarf high yielding varieties (HYV) to

the traditional agro-ecosystems.Biomass 3,313-316 (1983).

15. V.H. Mathews, C.R Bhatia,R Mitra, T.G. Krishna and P.S. Rao. Regeneration of

shoots from Brassica juncea (Linn.) Czenn and,Coss,cells transformed by

Agrobacterium tumefaciens and expression of nopaline dehydrogenase genes.

Plant Science 39,49-54 (1985).

16. M.S. Rajadhyaksha,D.S. Joshi, G.P. Phondke,R Mitra and K Sundaram. Lactic

dehydrogenase isozymes distributions in lymphocytesfrom normal and leukemic

mice. Cancer Biochemistry and Biophysics 8, 167-171(1986).

17. T.G. Krishna, S.E. Pawar and R MIitra. Variation and inheritance of the arachin

polypeptides of groundnut (Arachis hypogaea L.).Theoretical And Applied Genetics

73,82-87 (1986).


18. T.G. Krishna and R. Mitra. Arachin polymorphism in groundnut (Arachis hypogaea

L.) Phytochemistry 26, 897-902 (1987).

19. T.G. Krishna and R Mitra. The probable genome donors to Arachis hypogaea based

on arachin seed storage protein. Euphytica 37,47-52 (1988).

20. KN. Suseelan,R Mitra and C.R. Bhatia. Purificationand characterization of variant

alcohol dehydrogenase isozymes from durum wheat. Biochemical genetics 25, 581-

590 (1987).

21. J.D. Gadgil, KN. Suseelan, R. Mitra,D C Joshua, C.R Bhatia, M.K. Sinha and MK.

Guha Roy. Chemical composition of seed and electrophoretic pattern of seed storage

protein of jute (Corchorus olitorius and C. capsularis). Seed Science and Technology

(England) 17,499-506 (1989).

22. KN. Suseelan, Jin Ki Bang and R Mitra. Electrophoretic pattern of seed proteins of

Perilla. Korean Journal of Breeding 48, 383-386 (1996).

23. Jin Ki Bang, U.J. Vaidya, T.G. Krishna and R. Mitra.A rapid and simple technique

for the determination of linolenic acid by spot test in Perilla seeds.Korean Journal of

Breeding 48, 387-391 (1996).

24. K.N. Suseelan, C.R Bhatia and R. Mitra. Characteristicsof two major leetins from

mungbean (Vigna radiala) seeds. Plant Foods for Human Nutrition 50,211-222

(1997).

25. R. Dave and R. Mitra . A low temperature induced apoplastic protein isolated from

Arachis hypogaea. Phytochemistry, 49, 2207-2213 (1998).

26. A. Bhagwat, T.G. Krishna,N.Jawali and R. Mitra: Cloning and characterization

of a ribosomal RNA gene repeat from groundnut. Plant Cell Reports 20,

193-197,2001.

27. K.N.Suseelan,R.Mitra,R.Pandey,K.B.Sainis and T.G.Krishna: Purification and

characterization of a lectin from wild sunflower ( Helianthus tuberosus L.)tubers.

Archives of Biochemistry and Biophysics 401(2),241-247,2002

28. Susan Eapen,KN.Suseelan, Suchita Tivarekar,S.A.Kotwal and R.Mitra.Potential

rhizofiltration of uranium using hairy root cultures of Brassica juncea and

Chenopodium amaranticolor. Environmental Research 91,127-133,2003


29.Suseelan KN,Mitra R, Bhatia CR, Gopalakrishna T, The in vivo synthesis and accumulation of lectin in developing seeds of black gram ( Vigna mungo L. Hepper ). Plant Foods Hum Nutr. 59(3),123-128,2004




Papers published in Indian Journals


30. R. Mitra and S.P. Sen. Effect of some plant sterols, steroids and triterpenoids on

RNA synthesis in plants. The Plant BiochemicalJournal 2, 82-97 (1975).

31. J.D. Gadgil, and R. Mitra. Chemical composition of seeds in induced groundnut

mutants and their derivatives. Indian Journal of Agric. Science 53,295-298 (1983).

32. S.G. Bhagwat, R. Mitra and C.R. Bhatia. Variation in different sources for high grain

protein in spring wheat. Indian Journal of Agric. Science 56, 404-408 (1986).

33. R. Mitra and C.R Bhatia. Cytogenetics of wheat : Characterization, chromosomal

location and evolution of repeated DNA sequences. - Indian Journal of Genetics and

PlantBreeding 46,54-71 (1986).

34. J.D. Gadgil, R. Mitra, M.K. Sinha and M.K. Guha Roy. Proximate chemical

composition of seeds of Hibiscus cannabinus and H. sabdariffa. Jute Development

Journal, Vol. VIII (3), 28-30 (1988).

35. M.K. Sinha, J.D. Gadgil, R Mitra and M.K. Guha Roy. Electrophoretic pattern of

seed proteins in Hibiscus cannabinus and H. sabdariffa and their amphiploid

derivatives. Jute Development Journal, Vol. IX (3),21-25 (1989).

36, S.B. Allagikar, S.E. Pawar, RK. Mitra and N.K. Notani. Analysi of a case of

somatic instability in a strain of maize from India. Journal of Genetics, 70, 33-41

(1991).

37. R Mitra and C.R Bhatia. Bioenergeticsof nitrogen assimilation and phytomass

production. Proc. Indian Nat. Sci. Acad, B59, 257-264 (1993).

38. K.N. Suseelan, C.R Bhatia and R. Mitra. Purification and characterization of two

major lectins from Vigna mungo (blackgram). Journa of Biosciences 22.439-

455(1997).

39. CR Bhatia and R Mitra. Biosafety of transgenic crop plants. PINSA, 293-318 (1998).

40. K.KUssuf, N.H.Laxmi and RMitra : Proteinase inhibitors: a plant derived gene

of insecticidal protein for developing insect resistant transgenic plants.Current

Science 80,847-853,2001

41. Brahma B Panda, Kamal K Panda,Jita Patra,Gopal K Sahu and Ranjit K Mitra:

Evaluation of phytotoxicity and genotoxicity of uranyl nitrate in Allium assay

system. Indian J Expt.Biology 39,57-62,2001

42. K.N. Suseelan and R.Mitra : Chenopodium leaf hemagglutinin (CLH).

I. Purification and characterization of a novel hemagglutinin isolated from the

leaves of Chenopodium (Chenopodium amaranticolor ).

IndianJ.Biochem.Biophys. 38,186-192,2001

43. KN.Suseelan, K.B.Sainis and R Mitra: Chenopodium leaf hemagglutinin (CLH)

.ll. Further characterization and biological activities. Indian J. Biochem.Biophys.

38,193-198,2001

44. Susan Eapen and R.Mitra: Plant hairy root cultures: prospects and

limitations.Proc.lndian.natn.sci.Acad (PINSA) B 67 (Nos. 3&4),107-120,2001

45. C.R.Bhatia and R. Mitra: Consequences of gene flow from genetically

engineered crops.Current Science 84,138-141,2003


Chapters published in Books.


1. J.E. Varner, D. Flint and R Mitra. Characterisation of protein metabolism in cereal

grains. In Genetic Improvement of seed proteins (ISBN-0-309-02421-8). National

Academy of Sciences,USA, pp. 309-326 (1976).

2. C.R Bhatia and R Mitra. Bioenergetic and energy constraints in increasing wheat

yields. In Genetics and wheat improvement(Ed. AK. Gupta), Oxford & IBH

publishing Company,New Delhi, pp. 11-19 (1982).

3. S.E. Pawar, RG. Thakare, R. Mitra, T.G. Krishna and C.R Bhatia. Induced

mutations for the genetic improvement of pulse crops. 1. Pulse Production:

Constraints and opportunity, Oxford & IBH Publishing Co., New Delhi, pp. 361-367

(1984).

4. C.R. Bhatia, R. Mitra and Helena Mathews. Vectors for plant genetic engineering. In

Genetic Manipulation for Crop Improvement (ed. V.L. Chopra). Oxford & IBH

Publishing Co.,NewDelhi,pp. 261-289 (1985).

5. R Mitra and C.R. Bhatia. Repeated DNA sequences and polyploidy in cereal crops.

Chapter II. DNA systematics Plants, vol. 2., CRC Press, Cleaveland USA, pp. 21-43

(1986).

6. T.G. Krishna, S.E. Pawar, R Mitra and C.R Bhatia. Biochemical and Genetic

characterisation of seed storage proteins in two tropical legumes (Cajanus cajan (L.)

Milisp. and Vigna radiata (L.) Wilczeck). In Gene structure and function in higher

plants (eds. G.M. Reddy and E.H. Coe, Jr.), Oxford & IBH Publishing Co., New

Delhi, pp. 181-189 (1986).

7. C.R. Bhatia and R. Mitra. Bioenergetics of grain protein. In Nitrogen in Higher

Plants, Research Studies Press Ltd, England, pp. 499-506 (1989).

8. C.R Bhatia andR Mitra. Bioenergetic limitations to breeding better Brassicas. In .

Breeding oilseedBrassicas (eds. K.S. Labana, S.S. Banga and S.K. Banga), Chapter

5, Narosa PublishingHouse, New Delhi, pp. 67-75 (1992).


Papers published in the proceedings of International symposia /meetings


1. R Mitra and S.P. Sen. The relationship between nucleic acid synthesis and plant

growth substance action: the specificity of growth substances. Proc. Intern. Symp. on

Plant Growth Substances (eds. S.M. Sircar),Dept. of Botany, Calcutta University,

Calcutta, pp. 233-238 (1968).

2. R Mitra, S. Seal and S.P. Sen. Auxins, nucleic acids and organ growth. Proc. Intern.

Symp. on Plant Growth Substances (ed. S.M. Sircar), Dept. of Botany, Calcutta

University, Calcutta, pp. 113-120 (1968).

3. R. Mitra and C.R Bhatia. Studies on protein biosynthesis in developing wheat

kernals. Nuclear techniques for seed protein improvement,IAEA. Vienna, pp. 379-

389 (1973).

4. P. Narahari, C.R Bhatia, T. Gopalakrishna and RK. Mitra. Mutation induction of

protein variability in wheat and rice. Evaluation of seed protein alterations by

mutation breeding (STI/PUB/426), IAEA, Vienna, pp. 119-127 (1976).

5. R Rabson, C.R Bhatia and RK. Mitra. Crop productivity, grain protein and energy

inputs: subsidies and limitations. Seed protein improvement by nuclear techniques,

IAEA (R57/1),Vienna, pp. 3-20 (1978).

6. C.R Bhatia, R Mitra, S.G. Bhagwat and RM. Desai. Genetic variation in the

components of the 'high protein' character in wheat. Proc. 5thIntern. Wheat Genetics

Symp.,New Delhi, vol. 2, pp. 713-719 (1978).

7. S.G. Bhagwat, C.R Bhatia, T. Gopalakrishna, D.C. Joshua, RK. Mitra, P. Narahari,

S.E. Pawar and RG. Thakare. Increasing protein production in cereals and grain

legumes. Seed protein improvement in cereals and grain legumes, vol. II (IAEA SM-

230/3), IAEA. Vienna, pp. 225-236 (1979).

8. R.G. Thakare, S.E. Pawar, D.C. Joshua, R Mitra and C.R Bhatia. Variation in some

Physiological components of yields in induced mutants of mungbean.

Intern. Symp. on Induced Mutations - tool in crop plant breeding (IAEA-SM-

251/5), IAEA, Vienna, pp. 213-226 (1981).

9. C.R Bhatia andR Mitra. Utilizationof high protein wheat mutants. Induced mutants

for cereal grain protein improvement.IAEA-TECDOC-259, IAEA, Vienna, pp. 81-91

(1982).

10. C.R. Bhatia, R. Mitra and S.G. Bhagwat. Evaluation of different sources of high grain

protein character in spring wheats. Cereal grain protein improvement, lAEA,

Vienna,pp. 121-127(1984).

11. R Mitra and C.R. Bhatia. Flag leaf senescence in high grain protein wheat genotypes.

Cereal grain protein improvement,IAEA, Vienna, pp. 333-344 (1984).

12. C.R Bhatia and R Mitra. Bioenergetic considerations in the genetic improvement of

crop plants.ICRISAT 1988.Biotechnology in tropical crop improvement: Proc. of the

Intern, BiotechnologyWorkshop, ICRISAT Centre, India, pp. 109-118(1988).

13. RG. Thakare, J.D. Gadgiland R. Mitra. Originand evolution of seed protein in

Vigna mungo and V. radiata. Mungbean (ISBN-92-9058-035-6),AVRDC,

Shanhua, Tainan, pp. 47-52 (1988).

14. R. Mitra, S.E. Pawar and C.R Bhatia. Nitrogen: the major limiting factor for

mungbean yield. .Mungbean (ISBN-92-9058-035-6), AVRDC, Shanhua,Tainan, pp.

244-257 (1988).

15. R. Mitra, J.D. Gadgil and C.R Bhatia. Host proteins associated with disease

resistance Proc. Intern. Congress of Plant Physiology,Vol I (IARl, New Delhi), 660-

667 (1990).


Papers published in the proceedings of National symposia/meetings/workshops.


1. R. Mitra, J. Das, S.N. Seal and S.P. Sen. Interaction of plant growth substances with

DNA.

Proc. DAE Symp.on Macromolecules in Storage and Transfer of biological

information, DAE, Govt. of India, Bombay,pp. 51-58 (1970).

2. R. Mitra, P. Narahari, T. Gopalakrishnaand C.R Bhatia. Nitrogen uptake, RNA and

protein synthesis in high protein genotypes of rice.

Proc. DAE Symp. on use of radiation and radioisotopes in studies of plant

productivity,DAE, Govt. of India,Bombay,pp. 680-686 (1974).

3. R. Mitra. Molecular cloning of seed protein genes and expression.

DAE Workshop on MolecularBiology for crop improvement(Synopses of lectures),

DAE, Govt. India,Bombay,pp. XX.I-XX.13 (1982).

4. R. Mitra. Stress-induced and heat shock proteins in plants.

DAE Workshop on Plant MolecularBiology (Synopses of lectures), DAE, Govt. of

India, Bombay, pp. 89-111 (1985).

5. C.R. Bhatia, Helena Mathews and R. Mitra.Vectors for genetic transformation of

plant cells.

Proc. DAE Symp.on Newer Approaches to biological applications,DAE, Govt. Of

India, Bombay,pp. 159-165(1985).

6. R. Mitra, Pathogen-related(PR) proteins in plants.

In. Synopses of lectures and experimental protocols, FAO/IAEARegional (RCA)

TrainingCourse on Advanced Mutation Breeding of Tropical Crop Plants, BARC,

Govt. of India, Bombay,pp. 97-100 (1992).

7. R. Mitra. ELISA and Dot Immunobinding assay (DIBA) for the detection of viruses.

In. Synopses of lectures and experimental protocols, FAO/IAEARegional(RCA)

TrainingCourse on AdvancedMutationBreeding of Tropical Crop Plants, BARC,

Govt. of India, Bombay,pp. 165-169(1992).

8. T.G. Krishna,R. Mitra and K.N. Suseelan. Use of polyacrylamide gel electrophoresis

. for detecting genetic variability in crop plants.In. Synopses of lectures and experimental protocols, FAO/IAEARegional (RCA) TrainingCourse on Advanced Mutation Breeding of Tropical Crop Plants,BARC,

Govt. of India, Bombay,pp. 188-196(1992).

9. R. Dave and R. Mitra. Gene expression in response to low temperature in groundnut.

DAE Symp. on Photosynthesis and Plant Molecular Biology, DAE, Govt. of India, pp.

223-232 (1993).

10.R. Mitra. Bioenergetic cost of plant defence against biotic stress.

DAE Symp. on Stress and AdaptiveResponse in Biological Systems,DAE, Govt. of

India, pp. 175-180 (1994).

11. R. Mitra, S.E. Pawar and T.G. Krishna. The homology of vicilin in Vigna.

Proc. Golden Jubilee Symp.- GeneticResearch and Education, Current Trends and

Next 50 years, Ind. Soc. Genet. Pl. Breeding, vol. IV, IARI, New Delhi, pp. 1749-

1759 (1995)

12 Susan Eapen and R Mitra. Plant hairy roots: nature's gift to biotechnologists.

In Global Sustainable Biotech Congress 2000 AD, November 27-30. 2000. P.G.

Dept. of Microbiology, Nagpur University,Nagpur, Pages 19-22.

13 G.B. SuniIKumar. T.R Ganapathi. V.A. Bapat and RK. Mitra : Plant based

production of vaccines: edible vaccines.

In Global Sustainable Biotech Congress 2000 AD. November 27-30. 2000, P.G.

Dept. of Microbiology, Nagpur University,Nagpur, Pages 75-88.

14 S. Eapen. K.N. Suseelan. S. Tivarekar, S.A. Kotwal and RMitra : Development

of hairy root cultures of Brassic juncea and Chenopodium amaranticolor for

rhizofiltration of uranium.

In Proc. DAE-BRNS Symposium on the Use of Nuclear and Molecular

Techniques in Crop Improvement, December 6-8. 2000, BARC. Mumbai

(published by Head. Library & Information Services Division. BARC), Pages

303-314.

Papers published in News Letters


1. J.D. Gadgil and R. Mitra. Sucrose, raffinose and stachyose concentration in some

Trombay Groundnut cultures derived from mutation breeding.

Mutation Breeding News Letter 20,6-7 (1982).

2.RS.Dave and RK.Mitra : A partial characreization of the c-DNA clone of a low

temperature induced gene from groundnut (Arachis hypogaea L.).International

Arachis Newsletter 20,36-37,2000

3.S.J Jambhulkar, K.N.Suseelan,D.C.Joshua and RK.Mitra : Genetic and biochemical

analysis qf a disease lesion mimic mutant in rice var.'Basmati 370' .Rice Genetics

Newsletter 17,80-83,2000





Abstracts published in International Congress


1. R. Mitra, S.E. Pawar and C.R. Bhatia. Inheritance of seed storage protein charge

heterogeneity in mungbean(Vigna radiata).

First Congress of Plant MolecularBiology, Oct. 27-Nov. 2, 1985, Savannah, Georgia,

USA, Abstract No. OR-06-06, p. 16 (1985).

2. R. Dave and R. Mitra. Low temperature related gene expression in groundnut.

International Congress of Biochemistry and Molecular Biology,New Delhi, Abstracts

vol. 2, Abstract No. PI-250, P. 63 (1994).

3 S.B. Ghosh. S.Eapen , K.K. Ussuf. RMitra and S.M. Paul Khurana. The DNA

sequence of coat protein gene of potato virus Y of an Indian isolate.

Global Conference on Potato, December 6-11, 1999. New Delhi. Abstract PSY1.06,page 15 (Published by Indian Potato Assoc.,Shimla )



DNA/protein seauences submitted


1. R. Dave and R. Mitra. Characterisation of a cold-induced cDNA clone of groundnut.

Ace. # 84819 EMBL/DDJB/GENBANK.

2. R. Dave and R. Mitra. Partial amino acid sequence of a cold-induced apoplastic

thaumetin-like cryoprotective 33 kDa. cold-shock protein from groundnut.

Acc. # P80926 Swiss-PROT.


Popular Articles


1. C.R. Bhatia and R. Mitra

Implications for Indian agriculture (in response to Lester R. Brown's article on "When

food bowls turn into fuel farms").

Science Today, August 1980,pp. 46-47 (1980).

2. I. Narayana Rao, T. Gopalakrishna and R. Mitra.

How much do you know of human genetics?

Science Today, August 1981, pp. 47-49 (1981).

3. I. Narayana Rao, T. Gopalakrishnaand R Mitra.How much scientific is your language?

Science Today, November 1981, pp. 51-53 (1981).

4. 1.Narayana Rao, R Mitra and T. Gopalakrishna.

How much do you know about evolution?

Science Today, December 1982, pp. 29-30 (1982).































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