Indian Science Abstracts

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ISSN: 0019-6339




FEBRUARY 16, 2010






MATHEMATICS†††††††††††††††††††††††††† †††


PHYSICS†††††††††††††††††††††††††††††† †††

CHEMISTRY†††††††††††††††††††††††† †††† †††


002976 BHANU PRATAP, JOSHI M K (The ICFAI National College, Mohabbewala, Subhash Nagar, Dehradun-248 002) : Status of College of Education libraries in selected districts of Punjab: a survey. Ann Libr Inf Stud 2009, 56(3), 192-200.

002977 BISWAS S C (337 Hauz Khas Apartments, New Delhi 110016, E-Mail : : The National Library of India must act fast. Ann Libr Inf Stud 2009, 56(3), 169-74.

002978 GOWDA V, SHIVALINGAIAH D (Besant Evening College, Mangalore, Karnakaka, E-Mail : : Attitude of research scholars towards usage of electronic information resources: a survey of university libraries in Karnataka. Ann Libr Inf Stud 2009, 56(3), 184-91.

002979 KRISHNAMOORTHY G, RAMAKRISHNAN J, DEVI S (Anna University Chennai, Chennai-600 025) : Bibliometric analysis of literature on diabetes (1995 - 2004). Ann Libr Inf Stud 2009, 56(3), 150-5.

002980 MUKHERJEE B (Library & Information Science Dep, Banaras Hindu University, Varanasi, E-Mail : : Link analysis of Indian political parties web sites: a temporal comparison. Ann Libr Inf Stud 2009, 56(3), 201-12.

002981 NANDI A, BANDYOPADHYAY A K (The University of Burdwan, Central Library, Golapbag, Burdwan-713 104, E-Mail : : Research contributions in chemistry at the University of Burdwan: an analytical study. Ann Libr Inf Stud 2009, 56(3), 141-9.

002982 PUSHPALATHA K, MALLAIAH T Y (Mangalore University Library, Mangalagangothri-574 199, E-Mail : : Use of information resources in chemistry: a study of Mangalore University Library. Ann Libr Inf Stud 2009, 56(3), 175-83.

002983 SURESH KUMAR, GARG K C, DUTT B (National Institute of Science, Technology and Development Studies, Dr. K.S. Krishnan Marg, Pusa Gate, New Delhi-110 012, E-Mail : : Indian scientific output as seen through Indian Science Abstracts. Ann Libr Inf Stud 2009, 56(3), 163-8.

002984 VARGHESE R R, RAJAN J S (Library and Information Science Dep, Pondicherry University, Pondicherry, E-Mail : : Productivity of scientists of Rajiv Gandhi Centre for Biotechnology (RGCB): an analysis. Ann Libr Inf Stud 2009, 56(3), 156-62.


002985 BALASUBRAMANIAM S, CHARLES JEEVA J, KRISHNA SRINATH (Central Institute of Fisheries Technology, Cochin-682 029) : Adoption of hygienic practices at fish landing centres and markets . Fish Technol 2009, 46(2), 177-84.

002986 UPADHYAY A D, PANDEY D K (College of Fisheries, CAU, Lembucherra, Tripura (W)-799 210) : Analysis of urban consumer behavior for fish in Tripura. Fish Technol 2009, 46(2), 193-6.


002987 BERA R K (International Institute of Information Technology, 26/C, Electronics City, Hosur Road, Bangalre-560 100, E-Mail : : Patentable subject matter under the US patent Act, 1952: cases. Curr Sci 2008, 95(10), 1421-5.

002988 CHAKRAVARTY S (Hidayatullah National Law University, HNLU Bhawan, Civil Lines, Raipur, Chhattisgarh-492 001) : Importance of assignment agreements under intellectual property laws in India. J intellect Prop Right 2009, 14(6), 513-22.

002989 JANODIA M D, UDUPA N, VENKATA RAO J, PANDEY S ( Pharmacy Management Dep, Manipal College of Pharmaceutical Sciences, Manipal-576 104, E-Mail : : Patents, profitability and access to medicines in TRIPS regime in India-is there a way out?. Indian J pharm Educ Res 2008, 42(1), 84-8.

002990 NAIR M D (A-11, Sagarica, 15, 3rd Seaward Road, Valmiki Nagar, Thiruvanmiyur, Chennai-600 041) : TRIPS, WTO and IPR - how far have we gone with the DOHA round?. J intellect Prop Right 2009, 14(6), 542-3.

002991 SAHA T K (National University of Lesotho, Roma 180, Lesotho) : War on words in cyberspace- legal constraints and conflicts between rights of privacy and freedom of speech. J intellect Prop Right 2009, 14(6), 489-500.

002992 SHARMA A (National Law Institute University, Kerwa Dam Road, Bhopal-462 044) : Indian perspective of fair dealing under copyright law: Lex Lata or Lex Ferenda?. J intellect Prop Right 2009, 14(6), 523-31.

002993 SONI H, RITHISH S (KLE's College of Pharmacy, Rajaji Nagar IInd Blcok, Bangalore-560 010, E-Mail : : Patenting microorganism and intellectual property rights. Indian J pharm Educ Res 2008, 42(4), 413-16.

002994 SRIHARI Y, PADMAJA S, SRINIVASA RAO G (Aurobindo Pharma Ltd, 313 Bachupally, Qutubullapur Mandal, Hyderabad-500 072) : Implications of drug price competition and patent term restoration act (DPCPTRA) on Indian pharma industry. J intellect Prop Right 2009, 14(6), 501-12.

002995 THOMAS Z (Open Source Drug Discovery (OSDD) & DG's Technical Cell, Council of Scientific and Industrial Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi-110 001) : IP case law developments. J intellect Prop Right 2009, 14(6), 532-41.


002996 LEE B P Y H, DINATA Y (Durrell Institute of Conservation and Ecology, Kent Univ, Canterbury, Kent CT2 NR, United Kingdom, E-Mail : : Justifying tiger farms - a step backward for tiger conservation?. Curr Sci 2008, 95(9), 1109-10.

002997 PRASHER R S, SHARMA S, NEGI Y S (Regional Horticultural Research Station, Jachh, Jassur, Kangra-176 201, E-Mail : : Peoples' participation and conservation: a case of eco development in great Himalayan national park, Kullu, Himachal Pradesh, India. J Nat Conserv 2008, 20(1), 1-17.


002998 GUPTA A K, NARESH KUMAR (Environmental Research Laboratory, Zology Dep, S.S.V. (P.G.) College, Hapur-245 101, E-Mail : : Alterations in the population of leucocytes in the blood of a freshwater fish Clarias batrachus (Magur) due to intoxication of two anionic synthetic detergents. J Nat Conserv 2008, 20(1), 145-50.

002999 GUPTA A K, SHARMA N (Environmental Research Lab, Zoology Dep, S.S.V. (PG) College, Hapur) : Combined effect of sugar mill effluents and municipal sewage of planktons of Kali Nadi . J Nat Conserv 2008, 20(1), 73-80.

003000 MASOUD M S, EL-SARRAF W M, HARFOUSH A A, EL-SAID G F (Chemistry Dep, Faculty of Science, Alexandria Univ, Egypt) : Behavior of fluoride and some physicochemical parameters in coral reef and coastal water of Red Sea, Egypt. Int J pure appl Chem 2008, 3(4), 291-301.

003001 MONDAL M E A (Geology Dep, Aligarh Muslim Univ, Aligarh-202 002, E-Mail : : Evaluation of heavy metal pollution in parts of Hindon river (Tributary of River Yamuna) basin in the western part of Ganga plain, India: evidence from geochemistry of floodplain sediment. J appl Geochem 2008, 10(2), 192-200.

003002 NATH G, DEB U K (Pulp and Paper Research Institute, Jaykaypur-765 017) : Vermicomposting-an effective technique for paper mill solid waste utilisation and value addition . IPPTA Jl 2008, 20(2), 127-35.

003003 OJHA G D, BHARGAV J S (Central Ground Water Board, Southern Region, GSI Post, Bandlaguda, Hyderabad-500 068) : Ground water quality in Andhra Pradesh - a retrospection. J appl Geochem 2008, 10(2), 173-91.

003004 PEREIRA N (C/o D. Abhijit Mazumder, NCAOR, Headland Sada, Goa-403 804, E-Mail : : Phenomenon of 'green sahara'. Curr Sci 2008, 95(9), 1114.

003005 SARITHA V, K SWAPNA VAHINI, M SUMANTH KUMAR ( Environmental Studies Dep, GITAM Institute of Science, GITAM Univ, Visakhapatnam-530 040, E-Mail : : Status of environmental awareness in slum dwelling children of selected areas of Visakhapatnam. J Nat Conserv 2008, 20(1), 151-6.

003006 SHARMA A, MASSEY D D, TANEJA A (School of Chemical Sciences, Chemistry Dep, St John's College, Agra-282 002, E-Mail : : Horizontal gradients of traffic related air pollutants near a major highway in Agra, India . Indian J Radio Space Phys 2009, 38(6), 338-46.

003007 SHUKLA S K, VIVEK KUMAR, BANSAL M C (Paper Technology Dep, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur-247 001) : Indian paper industryl Kyoto protocol and clean development mechanism. IPPTA Jl 2008, 20(2), 101-5.

003008 SINGH A, SINGH P (Chemistry Dep, JSS Academy of Technical Education, C-20/1, Sector 62, Noida, Uttar Pradesh) : Colour removal of distillery effluent by physical and chemical treatment and effect of distillery effluent on wheat crop. J Nat Conserv 2008, 20(1), 63-71.

003009 SPICER R A (Earth and Environmental Sciences Dep, Centre for Earth Planetary Space and Astronomical Research, The Open Univ, Milton Keynes, MK 7 6AA, United Kingdom, E-Mail : : Deep time climate change : a fossil plant perspective. J Bot Soc Bengal 2008, 62(2), 3-16.

003010 VAHABI J, MAHDIAN M H (Soil Conservation and Watershed Management Research Center, P.O. Box 13445-1136, Tehran, Iran, E-Mail : : Rainfall simulation for the study of the effects of efficient factors on run-off rate. Curr Sci 2008, 95(10), 1439-45.

003011 VENKATESWARA SARMA V (G1 Ganpath Villa, 67, Padmavathy Nagar, Virugambakkam, Chennai-600 092, E-Mail : : Future models of green technologies for sustainable development. Curr Sci 2008, 95(10), 1403-4.

003012 VIKAS C (Central Ground Water Board, KR, Kedaram Complex, Kesavadasapuram, Pattom P.O., Trivandrum-4, E-Mail : : Geochemistry of groundwater - an overview of sporadic nitrate contamination in parts of Jaipur district, Rajasthan, India. J appl Geochem 2008, 10(2), 166-72.


003013 AGHILI A, ANSARI A (Mathematics Dep, Faculty of Sciences, Guilan Univ, P.O. Box 1841, Rasht, Iran, E-Mail : : Water waves diffraction by a circular plate in the presence of cracked-barrier near it. Int J mathl Sci 2008, 7(3-4), 255-73.

003014 AHMAD M K, IQBAL J (Mathematics Dep, Aligarh Muslim Univ, Aligarh, E-Mail : : Some generalizations of wavelet frames. Int J mathl Sci 2008, 7(3-4), 237-47.

003015 ALIMOHAMMADY A, POURBARAT K, MOHAMMADZADEH S A, ROOHI M (Mathematics Dep, Kashan Univ, Iran, E-Mail : : Maximal element theorems in finite continuous spaces. Int J mathl Sci 2008, 7(3-4), 215-24.

003016 ARVIND, JAIMALA, AGARWAL S C (Mathematics C.C.S. Univ, Meerut, Uttar Pardesh, E-Mail : : Hydromagnetic instability of shear flow of visco-elastic fluid in an anistropic porous medium. Int J mathl Sci 2008, 7(3-4), 387-97.

003017 BREAZ D, ACU M (Mathematics Dep, "1 Decembrie 1918" Alba Iulia, Romania, E-Mail : : Integral operator of the CVH(β)-class. Int J mathl Sci 2008, 7(3-4), 249-53.

003018 DAILI N (Mathematics Dep, Faculty of Sciences, F. Abbas Univ, 19000 Setif, Algeria, E-Mail : : Binomial densities in number theory. J Algebra Discrete Structs 2008, 6(3), 135-43.

003019 DONG L, JIAO Z (Mathematics Dep, Henan Normal Univ, Xinxiang, Henan 453007, P.R. China, E-Mail : : Maschke-type theorem for twisted smash product. J Algebra Discrete Structs 2008, 6(3), 119-26.

003020 DRAKAKIS K, RADULOVIC D (Electronic & Electrical Engineering, Univ College Dublin, Belfield, Dublin 4, Ireland, E-Mail : : On the multiresolution structure of internet traffic traces. Int J mathl Sci 2008, 7(3-4), 329-61.

003021 HUANG J, HAO L, HU B (Mathematics Dep, University Science and Technology of China, Hefei 230026, P.R. China, E-Mail : : New criterion of finite supersoluble groups. J Algebra Discrete Structs 2008, 6(3), 127-33.

003022 IQBAL J, MUSLIM M (Mathematics Dep, Aligarh Muslim Univ, Aligarh, E-Mail : : Wavelet packet coefficients and frames. Int J mathl Sci 2008, 7(3-4), 207-14.

003023 JUMA A R S, KULKARNI S R (Mathematics Dep, Pune Univ, Pune-411 007, E-Mail : : On meromorphic multivalent function used by linear operator. Int J mathl Sci 2008, 7(3-4), 225-35.

003024 KOZAK M (Experimental Design and Bioinformatics Dep, Warsaw Univ of Life Sciences, Nowoursynowska 159, 02-787 Warsaw, Poland, E-Mail : : Correlation coefficient and the fallacy of statistical hypothesis testing. Curr Sci 2008, 95(9), 1121-2.

003025 MARWALA T, CROSSINGHAM B (School of Electrical and Information Engineering, Univ of the Witwatersrand, Private Bag X3, WITS, 2050, South Africa, E-Mail : : HIV status estimation using optimization, rough sets and demographic data. Curr Sci 2008, 95(9), 1123-4.

003026 MOOSARREZA ZAHEDI M S, KHAN M Y A (Mathematics Dep, Islamic Azad Univ Neyshabur Branch, Iran, E-Mail : : On the unsteady lift of flapping wing-A mathematical approach. Int J mathl Sci 2008, 7(3-4), 179-91.

003027 NARASIMHA CHARYULU V, VENKAT RAMAN P (Kakatiya Institute Technology & Sciences, Warangal, Andhra Pradesh, E-Mail : : Oscillatory flow of a newtonian fluid through porous elliptic tube under magnetic field. Int J mathl Sci 2008, 7(3-4), 301-9.

003028 NARAYANA RAO K, VENKATA SUBBAIAH K, RAMACHANDRA RAJU V (Mechanical Engineerig Dep, Govt. Polytechnic, Vizianagaram, Andhra Pradesh, E-Mail : : Selection of supply chain through fuzzy analytic hierarchy process (FAHP). Int J mathl Sci 2008, 7(3-4), 375-86.

003029 PRASADA RAO V D, SUBBAIAH K V, RAMACHANDRA RAJU V, NARAYANA RAO K (S.R.K.R. Engg. College, Bhimavaram, E-Mail : : Optimization of constrained multi-item fuzzy inventory problems using genetic algorithm. Int J mathl Sci 2008, 7(3-4), 193-205.

003030 RAO S (International Institute of Information Technology - Bangalore, Bangalore-560 100, E-Mail : : Algebra of fault tolerance. J Algebra Discrete Structs 2008, 6(3), 161-80.

003031 SHARMA P R, SHARMA A (Mathematics Dep, Rajasthan Univ, Jaipur, Rajasthan) : Simulation of an inventory model to identify the best inventory policy for a departmental store. Int J mathl Sci 2008, 7(3-4), 317-28.

003032 SINHA K B (J.N. Centre for Advanced Scientific Research, Jakkur, Bangalore-560 064, E-Mail : : Science frontiers - semigroups of maps on operator algebra, their dilations and applications. Curr Sci 2008, 95(9), 1268-76.

003033 SOMASUNDARAM S, CHINNAIYAN R (Mathematics Dep, Coimbatore Institute of Technology, Peelamedu, Coimbatore, E-Mail : : Information systems reliability with minimal repairs. Int J mathl Sci 2008, 7(3-4), 369-73.

003034 SUN Y (Coll. of Phys Sci. and Tech. Yangzhou Univ, Yangzhou 225002, P. R. China, E-Mail : : Nonuniform multirate filter banks . Int J mathl Sci 2008, 7(3-4), 363-8.

003035 SWATMARAM, PHANEENDRA T (Chaitanya Bharathi Institute of Technology, Chatanya Bharathi, P.O., Gandipet, Hyderabad, Andhra Pradesh, E-Mail : : Common fixed point of three weakly compatible self - maps. Int J mathl Sci 2008, 7(3-4), 311-16.

003036 VEENA P H, PRAVIN V K, SHAHJAHAN S M (Mathematics Dep, V.G. College for Women Gulbarga, Karnataka) : Non-similar solutions in visco-elastic MHD flow and heat transfer over a porous stretching sheet with internal heat generation and stress work. Int J mathl Sci 2008, 7(3-4), 283-99.

003037 YAGHOUBI M, NIMSE S B (Mathematics Dep, Pune Univ, Pune, E-Mail : : Fuzzy quasi-uniformities by entourage. Int J mathl Sci 2008, 7(3-4), 275-81.

003038 ZUO K, XIE T (Mathematics Dep, Hubei Normal Univ, Huangshi 435002, P.R. China, E-Mail : : Hall polynomials for affine quivers of type D4. J Algebra Discrete Structs 2008, 6(3), 145-59.


003039 DE B K, DE S S, BANDYOPADHYAY B, PAUL S, BARUI S, HALDAR D K (Physics Dep, Tripura University, Tripura (West), Suryamaninagar-799 130, E-Mail : : Some studies of solar flare effects on the propagation of sferics and a transmitted signal. Indian J Radio Space Phys 2009, 38(5), 260-5.

003040 DHARANIBAI G, ALEX Z C (School of Electrical Sciences, VIT University, Vellore-632 014, E-Mail : : ANN technique for the evaluation of soil moisture over bare and vegetated fields from microwave radiometer data. Indian J Radio Space Phys 2009, 38(5), 283-8.

003041 KANE R P (Instituto Nacional de Pesquisas Espacias - INPE, Caixa Postal 515, 12201-970 - Sao Jose dos Campos, SP, Brazil, E-Mail : : Variations of geomagnetic Dst, auroral indices and cosmic ray intensity during 28-31 Oct 2003 Halloween events. Indian J Radio Space Phys 2009, 38(5), 245-53.

003042 KANE R P (Instituto Nacional de Pesquisas Espaciais-INPE, C P 515, Sao Jose' dos Campos, 12245-970 SP, Brazil, E-Mail : : Ozone depletion, worst not yet over . Indian J Radio Space Phys 2009, 38(6), 313-6.

003043 OGOLO E O, FALODUN S E, OLUYAMO S S, NYMPHAS E F ( Physics Dep, Federal University of Technology, Akure, E-Mail : : Analysis of data on net longwave, shortwave and global radiation during transition period in a tropical station in Southwestern Nigeria. Indian J Radio Space Phys 2009, 38(6), 347-52.

003044 RAM PRAKASH, SINGH M K, GUPTA D D (Physics Dep, Bipin Bihari PG College, Jhansi-284 001) : Relative effectiveness of plasmaspheric hiss and VLF hiss in the inner belt energetic electron precipitation. Indian J Radio Space Phys 2009, 38(5), 254-9.

003045 SHARMA N L, KUNIYAL J C, MAHAVIR SINGH, NEGI A K, KESAR SINGH, SHARMA P (Govt Post Graduate College, Kullu-175 101, E-Mail : : Number concentration characteristics of ultrafine aerosols (atmospheric nanoparticles / aitken nuclei) during 2008 over western Himalayan region, Kullu-Manali, India. Indian J Radio Space Phys 2009, 38(6), 326-37.


003046 AGRAWAL S K (Mathematics Dep, R S P College, Jharia, Dhanbad, Jharkhand) : Alpha spectra and Yukawa potential as static part of the barrier. Indian J pure appl Phys 2009, 47(12), 889-91.

003047 ARSLANALP R, TOLA A T (Faculty of Engineering, Electrical and Electronics Engineering Dep, Pamukkale University, 20070, Kinikli, Denizli, Turkey, E-Mail : : State space representation for log domain filtering synthesis. Indian J pure appl Phys 2009, 47(10), 745-52.

003048 BALACHANDRAN V, KANDIBAN G (Physics Dep, A A Government Arts College, Musiri, Tiruchirappalli-621 201, E-Mail : : Experimental and numerical realization of higher order autonomous Van der Pol-Duffing oscillator. Indian J pure appl Phys 2009, 47(11), 823-7.

003049 BANSAL V, BHANDARI H, BANSAL M C, DHAWAN S K ( Polymeric & Soft Materials Section, National Physical Laboratory, Dr K S Krishnan Road, New Delhi-110 012, E-Mail : : Electrical and optical properties of poly(aniline-co-8-anilino-1-napthalene sulphonic acid) - a material for ESD applications . Indian J pure appl Phys 2009, 47(9), 667-75.

003050 BHASKAR R, LAKSHMANAN A R, SUNDARRAJAN M, RAVISHANKAR T, JOSE M T, LAKSHMINARAYAN N (Physics Dep, Saveetha Engineering College, Thandalam, Chennai-602 105, E-Mail : : Mechanism of green luminescence in ZnO. Indian J pure appl Phys 2009, 47(11), 772-4.

003051 BHUIYAN M R A, SAHA D K, FIROZ HASAN S M (Applied Physics, Electronics and Communication Engineering Dep, Islamic University, Kushtia 7003, Bangladesh, , E-Mail : ) : Structural and electrical properties of polycrystalline AgxGa2-xSe2 (0.4≤x≤1.6) thin films. Indian J pure appl Phys 2009, 47(11), 787-92.

003052 BI Y, CHEN L, SUN F (Institute of Civil & Architectural Engineering, Beijing University of Technology, Beijing 100 124, P R China, E-Mail : : Ecological, exergetic efficiency and heating load optimizations for irreversible variable-temperature heat reservoir simple air heat pump cycles. Indian J pure appl Phys 2009, 47(12), 852-62.

003053 CHAKRABORTY S, ROY A K (Physics Dep, Visva Bharati University, Santiniketan-731235, E-Mail : : S-wave quarkonia spectroscopy in a relativistic quark model. Indian J pure appl Phys 2009, 47(9), 648-54.

003054 DUHAN S (Materials Science Lab, Applied Physics Dep, Guru Jambheshwar University of Science & Technology, Hisar-125 001, E-Mail : : Effect of sintering time on particle size of rare earth compounds (R = Nd) prepared by wet chemical method. Indian J pure appl Phys 2009, 47(12), 872-5.

003055 EL-BATAL F H (Glass Research Dep, National Research Center, Dokki, Cairo, Egypt, E-Mail : fh_elbatal : UV-visible, infrared, Raman and ESR spectra of gamma-irradiated TiO2-doped soda lime phosphate glasses. Indian J pure appl Phys 2009, 47(9), 631-42.

003056 GHOSH D, DEB A, BHATTACHARYYA S, DATTA U (Nuclear and Particle Physics Research Centre, Physics Dep, Jadavpur University, Kolkata-700 032, E-Mail : : Multifractality assessment in high energy nuclear collisions with levy index in self affine scenario. Indian J pure appl Phys 2009, 47(11), 761-71.

003057 GHOSH D, DEB A, BISWAS S, MANDAL P, SARKAR R ( Nuclear and Particle Physics Research Centre, Physics Dep, Jadavpur University, Kolkata-700 032, E-Mail : : Levy index analysis in relativistic and ultrarelativistic nuclear collision - evidence of non-thermal phase transition. Indian J pure appl Phys 2009, 47(12), 839-43.

003058 GOKULA NAND, MUNISH KUMAR (Physics Dep, G B Pant University of Agriculture and Technology, Pantnagar-263 145, E-Mail : : Temperature dependence of bulk modulus of minerals using equation of state. Indian J pure appl Phys 2009 , 47(12), 867-71.

003059 HAYAT S S, CHOUDHRY M A, HUSSAIN A, ALAM S, AHMAD S A, AHMAD I (Physics and Astronomy Dep, Hazara University, Mansehra, Pakistan, E-Mail : : Nanoscale relaxation near twin-interfaces of palladium and platinum. Indian J pure appl Phys 2009, 47(10), 730-6.

003060 JAT R N, CHAUDHARY S (Mathematics Dep, University of Rajasthan, Jaipur-302 004, E-Mail : : Magnetohydrodynamic boundary layer flow past a porous substrate with Beavers-Joseph boundary condition. Indian J pure appl Phys 2009, 47(9), 624-30.

003061 KALAIVANI T, KRISHNAN S (Physics Dep, S R M University, Kattankulathur-603 203, E-Mail : : Dielectric relaxation studies of ternary liquid mixtures of aniline and substituted anilines with acrylonitrile in the microwave region . Indian J pure appl Phys 2009, 47(12), 880-2.

003062 KARMAKAR S, PATOWARY K, BHATTACHARJEE S K, DEKA B, CHAKRABORTY A (Instrumentation & USIC Dep, Gauhati University, Guwahati-781 014, E-Mail : : Crystal and molecular structure of 2-thiobenzylazobenzene (C19H16N2S). Indian J pure appl Phys 2009, 47(12), 863-6.

003063 KUSHWAH S S, BHARDWAJ N K (Physics Dep, Rishi Galav College, Morena-476 001, E-Mail : : Pressure-volume relationships and bulk modulus for sodium halides . Indian J pure appl Phys 2009, 47(9), 663-6.

003064 LAMANI A R, JAYANNA H S, PARAMESWARA P, SOMASHEKAR R (Studies in Physics Dep, Kuvempu University, Shankarghatta-577 451, E-Mail : : Microcrystalline parameters of Cu-Zn ferrites using X-ray line profile analysis. Indian J pure appl Phys 2009, 47(10), 715-8.

003065 LIN C S, WU J M, HO C W, LEE C J, YEH M S ( Automatic Control Engineering Dep, Feng Chia University, Taichung, Taiwan) : Automatic inspection system for measurement of lens field curvature by means of computer vision. Indian J pure appl Phys 2009, 47(10), 708-14.

003066 MAHATO D N, PRASAD R N, MATHUR B K (Physics Dep, IIT, Kharagpur-721 301, E-Mail : : Surface morphological, band and lattice structural studies of cellulosic fiber coir under mercerization by ESCA, IR and XRD techniques. Indian J pure appl Phys 2009, 47(9), 643-7.

003067 MALLICK B, LAKSHMANNA A, RADHALAKSHMI V, UMAPATHY S (Inorganic and Physical Chemistry Dep, Indian Institute of Science, Bangalore-560 012, E-Mail : : Design and development of stimulated raman spectroscopy apparatus using a femtosecond laser system. Curr Sci 2008, 95(11), 1551-9.

003068 MALLIKARJUN S L, MADHURI R G, MALIPATIL S A, HADALGI P M (PG Studies and Research in Applied Electronics Dep, Gulbarga University, Gulbarga-585 106, E-Mail : : Development of microstrip array antenna for wide band and multiband applications. Indian J Radio Space Phys 2009, 38(5), 289-94.

003069 MATHEW V, JOSEPH J, JACOB J, JACOB S, VARUGHESE P A, ABRAHAM K R (St Aloysius' College, Edathua, Alappuzha, Kerala, E-Mail : : Spectral properties of cadmium malonate crystals grown in hydrosilica gel. Indian J pure appl Phys 2009, 47(10), 691-5.

003070 MOHANTA A, BEHERA D (Physics Dep, National Institute of Technology, Rourkela-769 008, E-Mail : : Effect of Ga and Zn doping on coherent transition of YBCO superconductor. Indian J pure appl Phys 2009, 47(9), 676-80.

003071 NANDAN H, BEZARES RODER N M, CHANDOLA H C (Centre for Theoretical Studies, Indian Institute of Technology, Kharagpur-721 302) : Screening current and dielectric parameters in dual QCD. Indian J pure appl Phys 2009, 47(11), 808-14.

003072 NAUTIYAL O P, BHATT S C, SEMWAL B S (Physics Dep, H N B Garhwal University, Srinagar, Srinagar Garhwal, Uttarakhand, E-Mail : : Preparation and characterization of ceramic samples of Ag1-xKxNbO3. Indian J pure appl Phys 2009, 47(10), 719-24.

003073 NAYAK A, GOSWAMI K, GHOSH A, DEBNATH R (Central Glass and Ceramic Research Institute, 196, Raja S C Mullick Road, Kolkata-700 032, E-Mail : : Luminescence efficiency of Eu+3 in Y2O3: The effect of reduction of particle size and incorporation of trace hetero-cations in the Y2O3 lattice. Indian J pure appl Phys 2009, 47(11), 775-81.

003074 PANDEY S K, DUBEY S C (Physics Dep, Rewa Engineering College, Rewa-486 001, E-Mail : : Characteristic features of large geomagnetic storms observed during solar cycle 23. Indian J Radio Space Phys 2009, 38(6), 305-12.

003075 PANDIT P, RAKSHIT B, SANYAL S P (Computational Research Lab, Physics Dep, Barkatullah University, Bhopal-462 026, E-Mail : ) : Electronic and elastic properties of alkali-metal sulphides-Li2S and Na2S . Indian J pure appl Phys 2009, 47(11), 804-7.

003076 PANDITRAO A M, REGE P P (Cummins College of Engineering for Women, Pune-411 052, E-Mail : : Estimation of spectral response of a consumer grade digital still camera and its application for temperature measurement. Indian J pure appl Phys 2009, 47(10), 703-7.

003077 PEIMBERT M (Instituto de astronomia, Universidad Nacional Autonoma de Mexico, Mexico, 04510 DF, Mexico, E-Mail : : Primordial helium abundance. Curr Sci 2008, 95(9), 1165-76.

003078 RAMAKRISHNAN T V (Physics Dep, Banaras Hindu Univ, Varanasi-221 005, E-Mail : : Strongly correlated electrons in solids. Curr Sci 2008, 95(9), 1284-1309.

003079 RASTOGI V K, SINGHAL S, PAVAN KUMAR A, RAMANA RAO G, PALAFOX M A, KOSTOVA I (Physics Dep, C C S University, Meerut-250 004, E-Mail : : Vibrational spectra, normal coordinate analysis and thermodynamics of 2-chloro-5-nitrobenzonitrile. Indian J pure appl Phys 2009, 47(12), 844-51.

003080 SAHOO S, DAS S (Physics Dep, National Institute of Technology, Durgapur-713 209, E-Mail : : Fractional quantum Hall effect in graphene. Indian J pure appl Phys 2009, 47(9), 658-62.

003081 SARMA R, SAIKIA D (Thin Film Lab, Physics Dep, J B College, Jorhat, Assam, E-Mail : : Study of tetracene thin film transistors using La2O3 as gate insulator. Indian J pure appl Phys 2009, 47(12), 876-9.

003082 SINGH B P, BAGHEL V S, BAGHEL K S (Physics Dep, Institute of Basic Sciences, Khandari, Agra-282 002, E-Mail : : Electronegativity, fractional ionic character and refractive index of binary compounds. Indian J pure appl Phys 2009, 47(11), 793-803.

003083 SINGH D, JAGGI N, SINGH N (Physics Dep, D S College, Karnal-132 001, E-Mail : : Vibrational analysis of 1,8-dichlorooctane. Indian J pure appl Phys 2009, 47(10), 696-702.

003084 SINGH K D, RAKESH KUMAR (Mathematics Dep, (ICDEOL), H P University, Shimla-171 005, E-Mail : : Combined effects of Hall current and rotation on free convection MHD flow in a porous channel. Indian J pure appl Phys 2009, 47(9), 617-23.

003085 SINGH N, MISHRA V, JAIN S C, SREEKANTH K V, PODDAR G C, KAPUR P (Central Scientific Instruments Organisation, Sector 30, Chandigarh-160 030) : Enhanced sensitivity refractive index sensor based on segmented fiber with bending. Indian J pure appl Phys 2009, 47(9), 655-7.

003086 SUMATHI T, UMA MAHESWARI J (Physics Dep, DDE, Annamalai University, Tamilnadu, E-Mail : : Ultrasonic and theoretical studies of some ternary liquid mixtures at various temperatures. Indian J pure appl Phys 2009, 47(11), 782-6.

003087 TANDON P, UTTAM K N (Saha's Spectroscopy Lab, Physics Dep, University of Allahabad, Allahabad-211 002, E-Mail : ) : Estimation of thermodynamical quantities of tin chalcogenides from spectroscopic data. Indian J pure appl Phys 2009, 47(10), 725-9.

003088 TANGSRIRAT W (Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang (KMITL), Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand, E-Mail : : Novel minimum-component universal filter and quadrature oscillator with electronic tuning property based on CCCDBAs . Indian J pure appl Phys 2009, 47(11), 815-22.

003089 UPADHYAY T C, SEMWAL K P (Physics Dep, H N B Garhwal University, Srinagar (Garhwal), Uttarakhand-246 174, E-Mail : : Temperature and electric field dependence of soft mode frequency, dielectric constant and loss tangent in rochelle salt crystal . Indian J pure appl Phys 2009, 47(12), 883-8.

003090 VERMA A, KHARE P K, SRIVASTAVA R K (Physics Dep, Bipin Behari P.G. College, Jhansi-284 001) : Electrode effect on electrical conduction in thin film of polyvinyl pyrrolidone. Indian J pure appl Phys 2009, 47(10), 737-44.

003091 WADIA S R (International Center for Theoretical Sciences and Dep of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha, Mumbai-400 005, E-Mail : : String theory: a framework for quantum gravity and various applications. Curr Sci 2008, 95(9), 1252-67.


003092 ABRAMOVA T V, KASSAKIN M F, SILNIKOV V N ( Institute of Chemical Biology and Fundamental Medicine, Lavrent'ev Ave, 8, 630090, Novosibirsk, Russia) : Novel oligonucleotide analogues based on morpho-lino nucleoside subunits-Antisense technologies: New chemical possibilities. Indian J Chem-Sect B 2009, 48(12), 1721-26.

003093 ACHARJEE N, BANERJI A, BANERJEE M, DAS T K ( Centre of Advanced Studies on Natural Products including Organic Synthesis, Chemistry Dep, University College of Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, E-Mail : : 1,3-Dipolar cycloadditions. Part XVII: Experimental and theoretical spectroscopic investigations of C-aryl-N-methyl nitrones. Indian J Chem-Sect A 2009, 48(12), 1627-37.

003094 ALQAP A S F, SOPYAN I (Manufacturing and Materials Engineering Dep, Faculty of Engineering, International Islamic University Malaysia (IIUM), P O Box 10, Kuala Lumpur 50728, Malaysia, E-Mail : : Low temperature hydrothermal synthesis of calcium phosphate ceramics: effect of excess Ca precursor on phase behaviour. Indian J Chem-Sect A 2009 , 48(11), 1492-1500.

003095 BARI S S, GITE U U, AGRAWAL A O (Pharmaceutical Chemistry Dep, R.C. Patel Institute of Pharmaceutical Education and Research, Shirpur-425 405, E-Mail : : Microwave assisted one pot synthesis of mannich bases of new lsatin derivatives. Int J pure appl Chem 2008, 3(4), 275-81.

003096 BARIWAL J B, SHAH A K, KATHIRAVAN M K, SOMANI R S, JAGTAP J R, JAIN K S (Pharmaceutical Chemistry Dep, Sinhgad College of Pharmacy, Vadgaon (Bk), Pune-411 004, E-Mail : : Synthesis and antiulcer activity of novel pyrimidylthiomethyl- and pyrimidylsulfinylmethyl benzimidazoles as potential reversible proton pump inhibitors. Indian J pharm Educ Res 2008, 42(3), 225-31.

003097 BEGUM A, APARNA A V, SIREESHA B, SARALA DEVI C, RAGHAVAIAH P (Chemistry Dep, Nizam College, Osmania University, Basheerbagh, Hyderabad-500 001) : Spectral and single crystal X-ray structure of 4-(4'-methyl) benzylidene amino-5-phenyl-3-merca-pto-1,2,4-triazole and its antimicrobial activity. Indian J Chem-Sect B 2009, 48(11), 1565-70.

003098 BORAH L, DEY N C (Analytical Chemistry Div, North East Institute of Science & Technology, Jorhat, E-Mail : ) : Removal of fluoride from low TDS water using low grade coal. Indian J chem Technol 2009, 16(4), 361-3.

003099 CZEKELIUS C (Institut fĀr Chemie und Biochemie, Freie UniversitĄt Berlin, Germany) : Polymerization of 1,6-diynes - Scope, structure, and optical properties. Indian J Chem-Sect B 2009, 48(12), 1704-8.

003100 DAVE S S, GHATOLE A M, RAHATGAONKAR A M, CHORGHADE M S, CHAUHAN P M S, SRIVASTAVA K (Chemistry Dep, Institute of Science, Civil Lines, Nagpur-440 001) : Experimental and computational evaluation of new quinolinyl chalcones as potent antiplasmodial agents. Indian J Chem-Sect B 2009, 48(12), 1780-93.

003101 DEEPTI, GHOSH K K, QUAGLIOTTO P (School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (CG)-492 010, E-Mail : : Micellization behavior of [C16-4-C16], 2Br- gemini surfactant in binary aqueous-solvent mixtures. Indian J Chem-Sect A 2009, 48(11), 1522-26.

003102 DEORE V, BHONDE M R, VISHWAKARMA R A, DAGIA N M, SANJAY KUMAR, ROYCHOWDHURY A (Medicinal Chemistry Dep &Pharmacology Dep, Piramal Life Sciences, 1-Nirlon Complex, Off Western Express Highway, Goregaon (E), Mumbai 400 063) : Mammalian target of rapamycin (mTOR) inhibitors with therapeutic potential for colitis . Indian J Chem-Sect B 2009, 48(12), 1761-65.

003103 DEY M, CHINTA J P, LONG G J, RAO C P ( Bioinorganic Lab, Chemistry Dep, Indian Institute of Technology Bombay, Powai, Mumbai- 400 076, E-Mail : : Synthesis and characterization of complexes of Fe(III), Co(III), Ni(II), Cu(II), Zn(II) and UO22+ with p-tert-butylcalix[4]arene bearing two imine pendants linked through salicylyl moiety at the lower rim. Indian J Chem-Sect A 2009, 48(11), 1484-91.

003104 DUBEY S, JAIN V, PREETHI G B (K.L.E.S's College of Pharmacy, Rajajinagar, Bangalore-560 010) : Evaluation of lipophilicity, antimicrobial activity and mutagenicity of some novel ester prodrugs of metronidazole. Indian J Chem-Sect B 2009, 48(11), 1571-76.

003105 FIGUEROA VALVERDE L, DIAZ CEDILLO F, CAMACHO LUIS A (Facultad de Ciencias Quimico-Biologicas, Lab de Farmaco-quimica, Universidad Autonoma de Campeche, Av. Agust°n Melgar s/n entre calle Juan de la Barrera y C-20, Col Buenavista C.P.24039 Campeche Cam, Mexico) : Synthesis of new succinatedihydrotestosterone-dihydropyrimidine conjugate. Indian J Chem-Sect B 2009, 48(12), 1757-60.

003106 GHAVALE N, WADAWALE A, DEY S, JAIN V K (Chemistry Div, Bhabha Atomic Research Centre, Mumbai-400 085, E-Mail : : Palladium assisted formation of arylselenoacetone from diaryldiselenides in methanol-acetone. Indian J Chem-Sect A 2009, 48(11), 1510-14.

003107 GUIN P S, DAS S, MANDAL P C (Chemical Sciences Div, Saha Instiute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata-700 064, E-Mail : : Formation and characterization of Ni(II) complex of sodium 1, 4-dihydroxy-9, 10-anthraquinone-2-sulphonate, an analogue of the core unit of anthracycline antibiotics, by different spectroscopic techniques. Int J pure appl Chem 2008, 3(4), 283-90.

003108 HATZADE K M, TAILE V S, GAIDHANE P K, UMARE V D, HALDAR A G M, INGLE V N (Chemistry Dep, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur-440 033) : Synthesis and biological activities of new 7-o-β-d-glucopyranosyloxy-3-(3-oxo-3-arylprop-1-enyl)-c hromones. Indian J Chem-Sect B 2009, 48(11), 1548-57.

003109 JAVANSHIR Z, GHAMMAMY S, BAGI S, RAHIMI R ( Chemistry Dep, Faculty of Science, Islamic Azad Univ, Ardebil Branch, Ardebil, Iran, E-Mail : : Two new adsorbed on alumina tributylammonium halochromates, (C4H9)NH[CrO3X], (X=F, Cl): reagents for oxidative coupling of thiols. Int J pure appl Chem 2008, 3(4), 243-6.

003110 JEMMIS E D, PRASAD D L V K (Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, E-Mail : : Unknowns in the chemistry of boron. Curr Sci 2008, 95(9), 1277-83.

003111 KAUR A, WAZIR M, GARG A, BAKSHI A K (Chemistry Dep, University of Delhi, Delhi-110 007, E-Mail : : Designing of type-I polymeric superlattices using genetic and ant algorithms: a comparative study . Indian J Chem-Sect A 2009, 48(12), 1652-56.

003112 KOTHA S, KASHINATH D, LOPUS M, PANDA D (Chemistry Dep, Indian Institute of Technology-Bombay, Powai, Mumbai-400 076) : Synthesis of nano-sized C3-symmetric 2,4,6-triphenyl-1,3,5-s-triazine and 1,3,5-triphenylben-zene derivatives via the trimerization followed by Suzuki-Miyaura cross-coupling or O-alkylation reactions and their biological evaluation. Indian J Chem-Sect B 2009, 48(12), 1766-70.

003113 LANJEWAR K R, RAHATGAONKAR A M, CHORGHADE M S, SARAF B D (Chemistry Dep, Institute of Science, R T M Nagpur University, Nagpur-440 001) : Synthesis and antimicrobial activity of 5-(2-aminothiazol-4-yl)-3, 4-dihydro-4-phenyl pyrimi-din-2(1H)-one . Indian J Chem-Sect B 2009, 48(12), 1732-37.

003114 LONDHE S V, KATHIRAVAN M K, CHITRE T S, AMRUTKAR R D, DAHIVALKAR B C, JAIN K S (Pharmaceutical Chemistry Dep, Sinhgad College of Pharmacy, Pune-411 041, E-Mail : : Microwave assisted organic synthesis for undergraduate pharmaceutical chemistry practicals. Indian J pharm Educ Res 2008 , 42(4), 390-4.

003115 LONDHE S V, MULGUND S V, CHITRE T S, MALLADE P S, BARIWAL J B, JAIN K S (Pharmaceutical Chemistry Dep, Sinhgad College of Pharmacy, Vadgaon (Bk), Pune-411 041, E-Mail : : Hyphenated techniques in analytical world. Indian J pharm Educ Res 2008, 42(4), 395-403.

003116 LOUIS B, SINGH J, SHAIK B, AGRAWAL V K, KHADIKAR P V (QSAR and Computer Chemical Laboratories, A.P.S. Univ, Rewa-486 003, E-Mail : : QSPR and ANN studies on prediction of aqueous solubility of heterogeneous set of organic compounds. Int J pure appl Chem 2008, 3(4), 259-74.

003117 MISHRA B K, SAHU S, PRADHAN S, PATEL S (Centre of Studies in Surface Science and Technology, Chemistry Dep, Sambalpur University, Jyoti Vihar-768 019, E-Mail : : Detection of tight ion-pair in some novel lipopathic oxidants from the monolayer at air-water interface. Indian J Chem-Sect A 2009, 48(11), 1527-31.

003118 MISHRA P (Chemistry Dep, Delhi Univ, Delhi-110 007, E-Mail : : Complexes behaviour of Bi(V) with 12-((1R)-2, 2-dichloro-1-(1, 3-dihydroxy-1-(4-nitrophenyl)propan-2-ylamino)-1-hydroxyethox)-3, 6, 10, 12a-tetrahydroxy-4-isopropyl-6-methyl-1,11-dioxo-1, 2, 5a, 6, 11, 11a, 12, 12a-octahydrotetracene-2-carboxamide and 1-(4-(2,2-dichloro-1-(1, 3-dihydroxy-1-(4-nitrophenyl_propan-2-ylamino)-1-hydroxyethoxy)-2-(4-( 3,5-dihydroxy-6-(hydroxymethyl)-4 (methylamino)tetrahydro-2H-pyran-2-yloxy)-5-formyl-5-hydroxy methyltetrahydrofuran-3-yloxy)-3,-dihydroxy-5-(methylamino)cyclohexyl) guanidine. Int J pure appl Chem 2008, 3(4), 227-35.

003119 MULWAD V V, HEGDE A S (Chemistry Dep, The Institute of Science, 15, Madam Cama Road, Mumbai-400 032) : Synthesis and antimicrobial screening of 4H-2-acetyl-3-acetyamido furo[3,2-c] benzopyran 4-one, 11H-2,4-dimethyl-3,4-dihydro-3-amino-4-hy-dro-xy-pyrimido [3,2-d]furo [3,2-c] benzopyran-11-one and 4H-2-acetyl-3-(3'-methyl-1',2',4'-tria-zol-4'-yl) furo[3,2-c] benzopyran 4-one. Indian J Chem-Sect B 2009, 48(11), 1558-64.

003120 NAGARAJAN A S, KAMALRAJ S, MUTHUMARY J, REDDY B S R (Industrial Chemistry Lab, Central Leather Research Institute, Chennai-600 020) : Synthesis of biologically active benzothiazole substituted thiazolidinone derivatives via cyclisation of unsymmetrical imines. Indian J Chem-Sect B 2009, 48(11), 1577-82.

003121 NARAYANA B, ASHALATHA B V, VIJAYA RAJ K K, SAROJINI B K (Studies and Research in Chemistry Dep, Mangalore University, Mangalagangotri-574 199) : Synthesis and studies on antimicrobial, anti-inflammatory and antiproliferative activities of heterocycles derived from 4-/5-/6-/7-nitro/5-fluoro/chloro/bromoindole-2-carbohydrazides. Indian J Chem-Sect B 2009, 48(12), 1794.

003122 NIRAJ KUMARI, PRAJAPATI R, DIXIT M, MISHRA L ( Chemistry Dep, Faculty of Science, Banaras Hindu University, Varanasi 221 05, E-Mail : : Selective binding of benzoquinone with a PtII-cyclophane constructed on the skeleton of N,N'-bis(salicylidene)-p-phenylenediamine: Synthesis and spectroscopic studies. Indian J Chem-Sect A 2009, 48(12), 1644-51.

003123 OSWAL S L, IJARDAR S P (Biochemistry Div, R&D Span Diagnostic Limited, 173-B, New Industrial Estate, Udhna, Surat-394 210, E-Mail : : Studies of viscosities of dilute solutions of alkylamines in non-electrolyte solvents. V. Alkylamines in toluene and benzene at 303.15 K. Indian J Chem-Sect A 2009, 48(11), 1501-9.

003124 PARAMASIVAM M, POI R, BANERJEE H (Agricultural Chemicals Dep, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741 252, E-Mail : : Quantitative determination of curcuminoids in turmeric powder by HPTLC technique. Curr Sci 2008, 95(11), 1529-31.

003125 PAREEK B, SOOD I S (Chemistry Dep, Government College, Ajmer, Rajasthan, E-Mail : : Preparation of novel compounds by solid-solid interaction between chromum and sodium salts of saccharides. Int J pure appl Chem 2008, 3(4), 303-6.

003126 PARMAR M L, BANYAL D S (Chemistry Dep, Himachal Pradesh University, Summer Hill, Shimla-171 005, E-Mail : ) : Effect of temperature on the partial molar volumes of some bivalent transition metalnitrates and magnesium nitrate in the water-rich region of binary aqueous mixtures of dimethyl acetamide. Indian J Chem-Sect A 2009, 48(12), 1667-72.

003127 PATTAN SHASHIKANT R, DESAI N S, RABARA P A, BUKITGAR A A, WAKALE V S (Pharmaceutical Chemistry Dep, KLES's College of Pharmacy, Belgaum, E-Mail : : Synthesis and antimicrobial evaluation of some 1,3,4-thiadiazole derivatives. Indian J pharm Educ Res 2008, 42(4), 314-18.

003128 PAWAN, SURANDER SINGH, GUPTA R K (Chemistry Dep, Guru Jambheshwar Univ of Science and Technology, Hisar-125 001, E-Mail : : Ethylation of aniline over Cd1-xCrxFe2O4 (x = 0.0, 0.25, 0.50, 0.75 and 1.0) type ferrite system. Int J pure appl Chem 2008, 3(4), 253-7.