Informatics Publishing Limited

Rajendran, A.

• Some Rare/Endemic Medicinal Orchids of Velliangiri Hills of Southern Western Ghats, Tamil Nadu, India

Abstract Views :397  |  PDF Views:2

Authors

V. Aravindhan , K. Sathiyadas , A. Rajendran , Binu Thomas

Source

Indian Forester, Vol 137, No 9 (2011), Pagination: 1077-1081

Abstract

The present paper highlights the medico-potentiality of 11- orchidaceous species viz., Acampe praemorsa (Roxb.) Blatt. & Mc. Cann., Bulbophyllum acutiflorum A. Rich., Bulbophyllum neilgherrense Wight., Cymbidium aloifolium (L.) Sw., Dendrobium herbaceum Lindl., Geodorum densiflorum (Lam.) Schltr., Habenaria plataginea Lindl., Habenaria roxburghii Nicolson, Malaxis acuminata D. Don, Oberonia wightiana Lindl. and Vanda tessellata (Roxb.) Hook. f. ex D. Don, collected from the Velliangiri hills, Southern Western Ghats of Tamil Nadu, India. The correct botanical name, brief description, distribution with phenological data and medicinal uses are provided for each species.

Keywords

Rare/Endemic Orchids, Ethnomedicine, Velliangiri Hills, Tamil Nadu

Full Text

     

• Design and Manufacturing of Nano Catalytic Converter for Pollution Control in Automobiles for Green Environment

Abstract Views :484  |  PDF Views:88

Authors

A. Durairajan ¹, T. Kavitha ², A. Rajendran ³, L. A. Kumaraswamidhas ⁴

Affiliations
1 Department of Mechanical Engineering, K.S.R. College of Engineering, Tiruchengode, Namakkal (DT), Tamil Nadu, IN
2 Department of Physics, Nehru Memorial College, Puthanampatti, Tamil Nadu, IN
3 3Department of Physics, Nehru Memorial College, Puthanampatti, Tamil Nadu, IN
4 Department of Mechanical Engineering, National Institute of Technology, Trichy, Tamil Nadu, IN

Source

Indian Journal of Innovations and Developments, Vol 1, No 5 (2012), Pagination: 314-319

Abstract

Automobile plays an important role in contribution to the pollution. Air pollution is predominately emitted through the exhaust of motor vehicles and the combustion of fossil fuels. Pollution control is the very important role for future generation to control toxic emissions like CO, NO_X and HC. The objective of the work is to reduce the emissions from the automobiles through design and manufacturing of nano catalytic converter by replacing the existing expensive metals such as platinum, cerium oxide. Nano materials like nano rhodium and nano palladium were obtained by using chemical vapour deposition (CVD) technique. The obtained nano powder was deposited in the honey comb structure by using spin coating method. Further the characterization of nano palladium and nano rhodium powder is made through scanning electron microscope, X-ray diffraction, transmission electron microscope. By using the nano catalytic converter the pollution is reduced.

Keywords

Nano catalytic converter, Nano materials, Automobile pollution, Transmission electron microscope

Full Text

   

References

• Apostolescu N, Geiger B, Hizbullahb K, Jan MT, Kureti S, Reichert D, Schott F, Weisweiler W (2005) Selective catalytic reduction of nitrogen oxides by ammonia on iron oxide catalysts. Appl. Catal., B, 62(1-2), 104-114.
• Genslak SL (1972) Evaluation of Gaseous Fuels for Automobiles. SAE paper, No.720125.
• Hizbullah K, Kureti S and Weisweiler W (2004) Potassium promoted iron oxide catalysts for simultaneous catalytic removal of nitrogen oxides and soot from diesel exhaust gas. Catal. Today, 93-95, 839-843.
• Joseph Y, Ketteler G, kuhrs C, Ranke W, Weiss W and Schlo R (2005) On the preparation and composition of potassium promoted iron oxide model catalyst films. Phys. Chem. Chem. Phys., 2001, 3, 4141-4153.
• Ketteler G, Ranke W and Schl R (2002) Potassium- Promoted Iron Oxide Model Catalyst Filmsfor the Dehydrogenation of ethylbenzene: An Example for Complex Model Systems. J. Catal., 212(1), 104-111.
• Klimstra J and Nederlandse Gasunie NV (1989) Carburetors for Gaseous Fuels-On Air-to-Fuel Ratio, Homogeneity and Flow Restriction, SAE paper, No.892141.
• Kureti S, Weisweiler W, Hizbullah K (2003) Simultaneous conversion of nitrogen oxides and
• Latusek JP and Burrrahm RW (1993) Conversion of Two Small Utility Engines to LPG Fuel. SAE paper, No.932447.
• Seldlitz S (1974) Converting A Gasoline Air-Cooled Engine to Propane. SAE paper, No.740746.

• Ethnobotanical Survey of Medicinal Plants Used by Malayali Tribes in Yercaud Hills of Eastern Ghats, India

Abstract Views :1951  |  PDF Views:1200

Authors

K. Senthilkumar ¹, V. Aravindhan ¹, A. Rajendran ¹

Affiliations
1 Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore – 641 046 Tamil Nadu, India, IN

Source

Journal of Natural Remedies, Vol 13, No 2 (2013), Pagination: 118-132

Abstract

Medicinal plants have played an important role in treating and preventing a variety of diseases throughout the world. India is one of the most medico-culturally diverse countries in the world where the medicinal plant sector is part of a time honoured tradition that is respected even today. The present study was initiated with an aim to identify traditional healers who are practicing herbal medicine among the <I>Malayali</I> tribes in Yercaud hills of Eastern Ghats, India and to document their indigenous knowledge on the utilization of medicinal plants particularly most common ethnomedicinal plants. The ethnobotanical information was collected through interviews among local traditional healers in the study area. A total of 90 species of plants distributed in 80 genera belonging to 44 families were identified as commonly used ethnomedicinal plants in the study. As a result, the present study revealed that the information documented regarding the therapeutic uses will provide basic data for further studies mainly focused on conservation, cultivation and economic welfare of the tribal population.

Keywords

Herbal medicine, Ethnobotany, Malayali tribes, Yercaud Hills, Tamil Nadu

Full Text

   

References

• Elizabeth M, Dowdeswell D. Global biodiversity assessment. UK: UNEP;1999. 80–89.
• Sheldon LM, Balick M, Laird SA. Is using medicinal plants compatible with conservation? Plant talk. 1998; 29–31.
• Gaur RD, Tiwari JK. Some little known medicinal plants of Garhwal Himalaya. An ethnomedicinal study. In: Leenwenbeg AGM, editor. Medicinal and poisonous plants of the tropics. Netherlands: Wageningen, 1987; 139–142.
• Principe P. Monetizing the pharmacological benefit of plants. Washington: US Environmental Protection Agency; 2005.
• Balakrishnan V, Prema P, Ravindran KC, Philip Robinson J. Ethnobotanical studies among villages from Dharapuram Taluk, Tamil Nadu, India. Global J Pharmacol. 2009; 3(1): 8–14.
• Bopana N, Saxena S. Asparagus racemosus– Ethnopharmacological evaluation and conservation needs. J Ethnopharmacol, 2007; 110(1): 1–15.
• Sahai S. Importance of Indigenous Knowledge. Ind J Trad Knowl. 2003; 2(1): 11.
• Perumalsamy R, Ignacimuthu S. Antibacterial activity of some of folklore medicinal plants used by tribals in Western Ghats of India. J Ethnopharmacol. 2000; 69: 63–71.
• Siddhiqui MAA, John AG, Paul TM. Status of some important medicinal and aromatic plants of Kashmir Himalaya. Ad Plant Sci. 1995; 8: 134–139.
• Diallo D, Hveem B, Mahmoud MA, Berge G, Paulsen BS, Maiga A. An ethnobotanical survey of herbal drugs of Gourma district, Mali. Pharmaceu Biol. 1999; 37: 80–91.
• Kunwar RM, Duwadee NPS. Ecology and Economy of NTFP’s in Nepal: A case study from Dolpa and Jumla districts, Nepal. Botanica orientalis. 2003; 3: 89–97.
• Heinrich M. Ethnobotany and its role in drug development. Phytotheraphy Res. 2000, 14: 479–488.
• Awadh A, Ali N, Al-rahwi IK, Lindequist U. Some medicinal plants used in Yemeni herbal medicine to treat Malaria. African J Trad Alt Med. 2004; 1: 72–76.
• Viswanathan MB. Ethnobotany of Malayalis in the Yelagiri hills of north Arcot district, Tamil Nadu. J Econ Toxon Bot. 1989; 13(3): 667–671.
• Viswanathan MB. Ethnobotany of the Malayalis in North Arcot district, Tamil Nadu, India. Ethnobot. 1997; 9: 77–79.
• Ravikumar K, Vijaya Sankar R. Ethnobotany of Malayali tribals in Melpattu village, Javvadhu hills of Eastern Ghats, Tiruvannamalai district, Tamil Nadu. J Econ Taxon Bot. 2003; 27: 715–726.
• Ganesan S, Suresh N, Kesavan L. Ethnomedicinal survey of Lower Palni hills of Tamil Nadu. Ind J Trad Knowl. 2004; 3(3): 299–304.
• Udayan PS, Sateesh G, Thuskar KV, Indira B. Ethnomedicine of Chellipale community of Namakkal district, Tamil Nadu. Ind J Trad Knowl. 2005; 4(4): 437–442.
• Udayan PS, Satheesh G, Tushar KV, Indira B. Medicinal plants used by the Malayali tribe of Servarayan Hills, Yercaud, Salem District, Tamil Nadu, India. Zeo’s Print J. 2006; 21(4): 2223–2224.
• Anand RM, Nandakumar N, Karunakaran I, Ragunathan M, Murugan V. A survey of medicinal plants in Kollimalai hill tracts, Tamil Nadu. Nat Prod Rad. 2006; 5(2): 139–143.
• Sandhya B, Thomas S, Isabel W, Shenbagarathi R. Ethnomedicinal plants used by the Valaiyan Community of Piramalai Hills, Tamil Nadu, India - A pilot study. Afr J Trad Compl Alt Med. 2006; 3(1): 101–114.
• Kottaimuthu R. Ethnobotany of Valaiyans of Karan-damalai, Dindigal district, Tamil Nadu, India. Ethnobot Leaflets. 2008; 12: 195–203.
• Vikneswaran D, Viji M, Rajalakshmi K. A survey of the ethnomedicinal flora of the Sirumalai hills, Dindigul district, India. Ethnobot Leaflets. 2008; 12: 948–953.
• Arunachalam G, Karunanithi M, Subramanian N, Ramachandran V, Selvamuthukumar S. Ethnomedicines of Kolli Hills at Namakkal District in Tamil Nadu and its Significance in Indian System of medicine. J Pharm Sci Res. 2009; 1(1): 1–15.
• Amutha P, Prabhakaran R. Ethnobotanical studies on Malayali tribe in Nalamankadai, Chitteri hills, Eastern Ghats, India. Ethnobot Leaflets. 2010; 14: 942–951.
• Kadhirvel K, Ramya S, Sudha TPS, Ravi AV, Rajasekaran C, Vanitha Selvi R, Jayakumararaj R. Ethnomedicinal survey on plants used by tribals in Chitteri hills. Eviron We Int J Sci Tech. 2010; 5: 35–46.
• Algesaboothi C. Ethnobotanical studies on useful plants of Kanjamalai hills of Salem district of Tamil Nadu, Southern India. Arch Appl Sci Res. 2011; 3(5): 532–539.
• Alagesaboopathi C. Ethnobotanical studies on useful plants of Sirumalai hills of Eastern Ghats, Dindigul District of Tamil Nadu, Southern India. Int J Biosci. 2012; 2(2): 77–84.
• Suresh K, Kottaimuthu R, Selvin Jebaraj Norman T, Kumathakalavalli R, Sabu MS. Ethnobotanical study of medicinal plants used by Malayali tribals in Kolli Hills of Tamil Nadu, India. Int J Res Ayur Phar. 2011; 2(2): 502–508.
• Murugesan P, Ganesan R, Suresh Kumar M, Panneer Selvam B. Ethnobotanical study of medicinal plants used by villagers in Kolli hills of Namakkal district of Tamil Nadu, India. Int J Pharmaceu Sci Rev Res. 2011; 10(1): 170–173.
• Francis Xavier T, Freda Rose A, Dhivyaa M. Ethnomedicinal survey of Malayali tribes in Kolli hills of Eastern Ghats of Tamil Nadu, India. Ind J Trad Knowl. 2011; 10(3): 559–562.
• Rajendran A, Manian S. Herbal remedies for diabetes from the Kolli hills, Eastern Ghats, India. Ind J Nat Products and Resources. 2011; 2(3): 383–386.
• Elavarasi S, Saravanan K. Ethnobotanical study of plants used to treat Diabetes by tribal people of Kolli hills Namakkal district, Tamil Nadu, Southern India. Int J Pharm Tech Res. 2012; 4(1): 404–411.
• Algesaboopathi C, Devakaran P, Balu S. Plants used as medicine by tribals of Shervaroy hills, Tamil Nadu. J Econ Taxon Bot. 1999; 23: 391–393.
• Kadaval K, Dixit AE. Ethnomedicinal studies of the woody species of Kalrayan and Shervarayan Hills, Eastern Ghats, Tamil Nadu. Ind J Trad Knowl. 2009; 8(4): 592–597.
• Parthipan M, Aravindhan V, Rajendran A. Medico-botanical Study of Yercaud Hills in the Eastern Ghats of Tamil Nadu, India. Ancient Sci Life. 2011; 30(4): 104– 109.
• Jayasree G. Impact of Development programmes on the Malayali of Javadhu Hills, Tamil Nadu. Ph.D. Thesis. University of Madras, Department of Botany; 2002.
• Schultes RE. The role of the ethnobotanist in search for new medicinal plants. Lloyida. 1962; 25(4): 257–266.
• Jain SK. Methods and Approaches in Ethnobotany. Lucknow, India: Society of Ethnobotany; 1989.
• Jain SK, Goel AK. A manual of Ethnobotany. Jodhpur, India: Scientific Publishers, 1995; 142–153.
• Jain SK, Rao RR. A handbook of field and herbarium methods. New Delhi, India: Today & Tomorrow Publishers; 1976.
• Gamble JS, Fisher CEC. Flora of Presidency of Madras. Vols. 1- 3. London: Adlard & Sons Ltd; 1915–1936 (Reprint ed. 1957).
• Matthew KM. The flora of Tamilnadu Carnatic. Tiruchirapalli, India: The Rapinat Herbarium; 1983.
• Nair MP, Henry AN. Flora of Tamil Nadu, India. Series I (Analysis): Vol. I. Coimbatore, India: Botanical survey of India; 1983.
• Henry AN, Kumari GR, Chitra V. Flora of Tamil Nadu, India. Series I (Analysis): Vols. II-III. Coimbatore, India: Botanical survey of India; 1987.
• Matthew KM. An Excursion Flora of Central Tamil Nadu, India. New Delhi, India: Oxford & IBH Publishers; 1991.
• Tabuti JRS, Lye KA, Dhillion SS. Traditional herbal drugs of Bulamogi, Uganda: plants, use and administration. J Ethnopharmacol. 2003; 88: 19–44.
• Uniyal SK, Singh KN, Jamwal P, Lal B. Traditional use of medicinal plants among the tribal communities Chhota, Western Himalaya. J Ethnopharmacol Eth-nomed. 2006; 2: 14. (http://www. Ethnobiomed.com/ content/2/1/14).
• Giday M, Asfaw Z, Woldu Z. Ethnomedicinal study of plants used by Sheko ethnic group of Ethiopia. J Ethnophrmacol. 2010; 132: 75–85.
• Teklehaymanot T, Giday M, Medhin G, Mekonnen Y. Knowledge and use of medicinal plants by people around Debre Libanos monastery in Ethiopia. J Ethnopharmacol. 2007; 111: 271–283.
• Cakilcioglu U, Turkoglu I. An ethnobotanical survey of medicinal plants in Sivrice (Elazig-Turkey). J Ethnopharmacol. 2010; 132: 165–175.
• Gonzalez JA, Garcia-Barriuso M, Amich F. Ethnobotanical study of medicinal plants traditionally used in the Arribes del Duero, Western Spain. J Ethnopharmacol. 2010; 131: 343–355.
• Giday M, Asfaw Z, Woldu Z. Medicinal plants of the Meinit ethnic group of Ethiopia: an ethnobotanical study. J Ethnopharmacol. 2009; 124: 513–521.
• Giday M, Teklehaymanot T, Animut A, Mekonnen Y. Medicinal plants of the Shinasha, Agew-awi and Amhara peoples in northwest Ethiopia. J Ethnopharmacol. 2007; 110: 516–525.
• Roosita R, Kusharto CM, Sekiyama M, Fachrurozi Y, Ohtsuka R. Medicinal plants used by the villagers of a Sundanese community in West Java, Indonesia. J Ethnopharmacol. 2008; 115: 72–81.
• Ayyanar M, Ignacimuthu S. Ethnobotanical survey of medicinal plants commonly used by Kani tribals in Tirunelveli hills of Western Ghats, India. J Ethnopharmacol. 2011; doi: 10. 1016/j. jep. 2011.01.029.
• Lee S, Xiano C, Pei S. Ethnobotanical survey of medicinal plants at periodic markets of Honghe Prefecture in Yunnan Province, SW China. J Ethnopharmacol. 2008; 117: 362–377.
• Andrade-Cetto A. Ethnobotanical study of the medicinal plants from Tlanchinol, Hidalgo, Mexico. J Ethnopharmacol. 2009; 122: 163–171.
• Trotter RT, Logan MH. Informants consensus: a new approach for identifying potentially effective medicinal plants. In: Etkin NL, editor. Plants in indigenous medicine and diet. New York: Redgrave Publishing Company; 1986: 91–112.
• Mukherjee PK, Maiti K, Mukherjee K, Houghton PJ. Leads from Indian medicinal plants with hypoglycaemic potentials. J Ethnopharmacol. 2006; 106: 1–28.
• Fabricant DS, Fransworth NR. The value of plants used in traditional medicine for drug discovery. Environ Health Pers. 2001; 109: 69–75.

• Study on the Anti-inflammatory Effects of Leaf Extract of Heterostemma tanjorense Wight and Arn.

Abstract Views :623  |  PDF Views:0

Authors

S. Thevasundari ¹, A. Rajendran ²

Affiliations
1 Department of Environmental and Herbal Science, Tamil University, Thanjavur, Tamil Nadu, IN
2 Department of Botany, Bharathiyar University, Coimbatore, Tamil Nadu, IN

Source

Research Journal of Pharmacognosy and Phytochemistry, Vol 5, No 1 (2013), Pagination: 34-36

Abstract

Anti-inflammatory drugs presently available for the treatment of various inflammatory disorders have diverse and undesirable side effects. In recent years; active principles of varied chemical structures have been isolated from plants possessing anti-inflammatory activity. The main objective of the present investigation is to evaluate the anti-inflammatory property of chloroform, distilled water, ethanol and ethyl acetate leaf extract of Heterostemma tanjorense Wight and Arn. in albino rates using the Carrageenan induced left hind paw edema. In the study it was observed that the chloroform, distilled water, ethanol and ethyl acetate extracts were significantly inhibit paw edema induced by carrageenan in rats. The ethanolic extract showed a promising anti-inflammatory property when compared with the chloroform, distilled water and ethyl acetate extract.

Keywords

Anti-inflammatory, Heterostemma tanjorense, Carrageenan, Paw Edema.

Full Text

     

References

• C.A.Winter, E.A. Risely and, G.W. Nuss. Proc. Soc. Exp. Biol. Med., 1962,111: 544-547.
• R.Vinegar, W. Schreiber, and, R. Hugo. 1969, 166: 96-103.
• W.C. Evans, WB Saunders Ltd., London; 2002, 32-547.
• R. Suresh Babu S. S. Karki. In. J. of Pharmacy and Pharmaceutical Sci 2011,Vol 3, Issue 3.
• M. S. Bagul, H. Shrinivas, M. S. Kanaki and M. Rajani, Ind. J. Pharmacol., 2005, 37, 299-400,
• P. Bhattacharya, S. M. Lakshmi, C. K. Ashok Kumar and S. C. Mandal, 2005, 383-385.
• S. Mahesh, M. B. Paschapur, Patil and R. Patil, J. Med. Plants Res., 2009. 3(2), 49-54
• E. Rajamanickam, S. Gurudeeban, T. Ramanathan and K. Satyavani, Int. J. Curr. Res., 2, 67-69, 2010.
• K. Sudipta Das, Pallab, Haldar and R. B. Goutam Pramanik, Suresh, J. Pharmacol., 4(1), 48-50 2010.
• B. G. Katzung, Basic and Clinical Pharmacology, Lang Medical Books, McGraw-Hill, New York, 536-539, 2001.
• S. D. Satoskar, S. S. Bhandarkar, Pharmacology and Pharma- Cotherapeutics, Popular Prakashan Pvt. Ltd, Mumbai, 2005,153- 160,
• O. Udeme Georgewill, Owunari and A. Georgewill, Eastern J. Medic., 2009.14, 20-22.
• K. Pramod Tyagi, K. Vishnu Rai, K. Ashish Pahria and S. Sambath Kumar, J. Curr. Pharmaceut. Res., 3(1), 47-50 (2010).
• M. C. Smith and M. A. Reynard, Essential of Pharmacology, Saunders Company, West Bengal.1995,147-149.
• S. Sosa, M. J. Balick, R. Arvigo and R. G. Esposito, C. Pizza ,J. Ethanopharmacol., 2002, 8, 211-215.

• Cissus Quadrangularis I/i> L. (vitaceae): Epiphytic Habitat?

Abstract Views :268  |  PDF Views:0

Authors

M. Parthipan ¹, A. Rajendran ¹

Affiliations
1 Taxonomic and Floristics laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore- 641 046. Tamil Nadu, India, IN

Source

Indian Forester, Vol 140, No 11 (2014), Pagination: 1148-1150

Abstract

No abstract

Full Text

     

• Eugenia Singampattiana Beddome (Myrtaceae) - its Status after Rediscovery from the Tirunelveli Hills, Tamil Nadu

Abstract Views :170  |  PDF Views:131

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 31, No 1-4 (1989), Pagination: 122-125

Abstract

Eugmia singampattiana Beddome, an endemic species of the Tirunelveli-Travancore Hills on the Western Ghats has been rediscovered after Beddome in the 1860s-1870s. Mature fruits and seeds are described for the first time. It is reportedly an endangered or possibly extinct species. Its present status is discussed and conservation measures are suggested.

Full Text

   

• Does Premna Procumbens' Moon (Verbenaceae) Occur in Southern India?

Abstract Views :168  |  PDF Views:104

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 32, No 1-4 (1990), Pagination: 129-134

Abstract

The reported occurrence of Premna procumbens Moon in Southern India is based on the mistaken identity of P. wightiana Schauer. P. procumbens Moon is found to be endemic to Sri Lanka (Ceylon). P. wightiana is endemic to the. Southern Western Ghats and seems to be rare needing further surveys to establish the exact status of this species.

Full Text

   

• Premna Nana Collett & Hemsley-an Addition to the Verbenaceae of India

Abstract Views :148  |  PDF Views:113

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 32, No 1-4 (1990), Pagination: 172-174

Abstract

No Abstract.

Full Text

   

• The Occurrence of Premna Lucldula Miq. (Verbenaceae) in India

Abstract Views :143  |  PDF Views:97

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 32, No 1-4 (1990), Pagination: 191-194

Abstract

No Abstract.

Full Text

   

• A Note on the Species of Vitex L. (Verbenaceae) Endemic to the Andamans

Abstract Views :206  |  PDF Views:120

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 11-15

Abstract

Vitex diversifolia Kurz ex C.B. Clarke and V. wimberleyi Kurz are endemic to the Andaman Islands. They are rare and confined to only certain localities on these Islands. Detailed descriptions and illustrations are provided. Their present status is discussed. Both the names are typified.

Full Text

   

• Premna cordifolia (Verbenaceae) - A Variously Misapplied Name

Abstract Views :230  |  PDF Views:141

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 37, No 1-4 (1995), Pagination: 92-99

Abstract

Premna cordifolia Roxb., does not occur in India. It is found that either this species was misunderstood or the name P. cordifolia misapplied to P. corymbosa Rottler in old literature; or to P. rubens (C.B. Clarke) Ridley in later literature. The species involved are keyed out and their nomenclature is set right. P. rubens is added to the Indian Verbenaceae and the name lectotypified.

Full Text

   

• Lippia alba (Miller) N.E. Br. Distinct from Lippia javanica (Burm.F.) Sprengel (Verbenaceae)

Abstract Views :217  |  PDF Views:141

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 38, No 1-4 (1996), Pagination: 19-24

Abstract

Lippia alba (Miller) N.E. Br. is a distinct species and wide-spread in India. Lippia javanica (Burm. f.) Sprengel has established in very few places only and the name L. javanica is found misapplied to L. alba (Miller) N.E. Br. It is established that Lantana malabarica Hayek and Lippia unica Ramakr., and L. indica Mold., all described from southern India, are synonyms of L. alba and L. javanica respectively.

Full Text

   

• Nomenclatural Changes and Rectifications in the Indian Verbenaceae

Abstract Views :241  |  PDF Views:126

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 38, No 1-4 (1996), Pagination: 43-45

Abstract

Premna coriacea C.B. Clarke var. villosa (C.B. Clarke) Rajendran & Daniel, stat. & comb. nov. and Premna serratifolia L. var. minor (Ridley) Rajendran & Daniel, comb, nov., are proposed Clerodendrum farinosum (Roxb.) Steudel and Lantana veronicifolia Hayek supersede Clerodendrum venosum Wallich ex C.B. Clarke and Lantana wightiana Wallich ex Gamble respectively. Lippia indica Mold., is a synonym of Lippia javanica (Burm.f.) Sprengel whereas Lantana malabarica Hayek and Lippia unica Ramakr., are synonyms of Lippia alba (Miller) N.E. Br.

Full Text

   

• The Correct Ascription of the Combination Stachytarpheta cayennensis (Verbenaceae)

Abstract Views :210  |  PDF Views:123

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 37, No 1-4 (1995), Pagination: 132-133

Abstract

No Abstract.

Full Text

   

• Critical Comments on Clerodendrum farinosum (Roxb.) Wallich Ex Steudel (Verbenaceae)

Abstract Views :184  |  PDF Views:112

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 110-113

Abstract

No Abstract.

Full Text

   

• The Status and Affinities of Clerodendrum macrostachyum Turcz. (Verbenaceae)

Abstract Views :194  |  PDF Views:114

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 121-123

Abstract

No Abstract.

Full Text

   

• Memecylon rivulare Bremer (Melastomataceae) an Addition to the Indian Flora

Abstract Views :172  |  PDF Views:106

Authors

M. B. Viswanathan ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 124-126

Abstract

No Abstract.

Full Text

   

• Clerodendrum andamanense (Mold.) Rajendran & Daniel Stat. & Comb. Nov. (Verbenaceae) - A Rare Species from the Andamans

Abstract Views :187  |  PDF Views:111

Authors

A. Rajendran ¹, P. Daniel ²

Affiliations
1 National Botanical Research Institute, Lucknow-226001, IN
2 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 38, No 1-4 (1996), Pagination: 133-135

Abstract

No Abstract.

Full Text

   

• Segmentation of Brain Tumor on MRI Images Using Modified GVF Snake Model

Abstract Views :138  |  PDF Views:3

Authors

A. Rajendran ¹, R. Dhanasekaran ²

Affiliations
1 RVS College of Engineering & Technology, ECE Department, Coimbatore, IN
2 Syed Ammal Engineering College, Ramanathpuram, Coimbatore, IN

Source

Digital Image Processing, Vol 3, No 16 (2011), Pagination: 1076-1078

Abstract

Medical image segmentation is the most important process and research focus in the medical image processing field. Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. In this paper the gradient vector flow (GVF) snake model is modified with thinning canny edge detection is used for brain tumor segmentation. The thinning canny operator is used to calculate the edge map gradient for GVF snake model. Then the GVF deforms with initial contour. Simulation results show that the GVF model with thinning canny operator can extract the boundary of brain tumor accurately. This method can overcome the problem that traditional snake cannot have efficient converge to the weak boundary.

Keywords

GVF Snake, Segmentation, Brain Tumor, Deformable Model.

Full Text

     

• A Survey on Image Segmentation Techniques for Medical Images

Abstract Views :154  |  PDF Views:3

Authors

A. Rajendran ¹, R. Dhanasekaran ²

Affiliations
1 RVS College of Engg. &Technology, ECE Department, Coimbatore, IN
2 Department of ECE, Nehru Institute of Engineering and Technology, Coimbatore, IN

Source

Digital Image Processing, Vol 1, No 1 (2009), Pagination: 21-26

Abstract

Image segmentation is one of the primary steps in image analysis for object identification. The main aim is to recognise homogeneous regions within an image as distinct and belonging to different objects Image segmentation plays a crucial role in many medical imaging applications by automating or facilitating the delineation of anatomical structures and other regions of interest. We present herein a critical appraisal of the current status of semi-automated and automated methods for the segmentation of anatomical medical images. We conclude with a discussion on the future of image segmentation methods in biomedical research.

Keywords

Medical Imaging, Classification, Deformable Models, Magnetic Resonance Imaging.

Full Text

     

• Recital Scrutiny of Multimodal Biometric Based Authentication System by Diverse Fusion Method

Abstract Views :141  |  PDF Views:3

Authors

A. Shajin Nargunam ¹, R. Manju ², A. Rajendran ³

Affiliations
1 Noorul Islam University, IN
2 Department of EIE, Noorul Islam University, IN
3 Department of ECE, Sun College of Engineering and Technology, IN

Source

Biometrics and Bioinformatics, Vol 4, No 11 (2012), Pagination: 510-515

Abstract

In many real-world applications, unimodal biometric systems often face significant limitations due to sensitivity to noise, intraclass variability, data quality, nonuniversality, and other factors. Multibiometric systems seek to alleviate some of these problems by providing multiple pieces of evidence of the same identity. This paper presents an effective fusion scheme that combines information presented by multiple domain experts based on the rank-level fusion integration method. The developed multimodal biometric system possesses a number of unique qualities, starting from utilizing principal component analysis and Fisher‘s linear Discriminant methods for individual matchers (face,iris, and fingerprint) identity authentication and utilizing the novel rank-level fusion method in order to consolidate the results obtained from different biometric matchers. The results indicate that fusion of individual modalities can improve the overall performance of the biometric system, even in the presence of low quality data.

Keywords

Biometric Identification System, Neuro Fuzzy, Fisher‘s Linear Discriminant Methods (FLD), Multi Biometric System, Principal Component Analysis (PCA), Rank-Level Fusion.

Full Text

     

• Molecular Characterization of Coagulase Negative Nosocomial Staphylococcus sp. by RFLP Method

Abstract Views :156  |  PDF Views:0

Authors

A. Sathya ¹, A. Rajendran ², V. Sivakumari ²

Affiliations
1 Department of Microbiology, Marudupandiyar College, Thanjavur (T.N.), IN
2 Department of Environmental and Herbal Sciences, Tamil University, Thanjavur (T.N.), IN

Source

International Journal of Medical Sciences, Vol 2, No 2 (2010), Pagination: 129-132

Abstract

Coagulase negative nosocomial Staphylococcus spp. were collected from infected patient in and around Thanjavur. Colonies were analyzed by using morphological (staining, colony morphology and pigmentation) and biochemical (catalase, coagulase, acid production etc.) analyses. Twenty coagulase negative Staphylococcus spp. (CoNS) were identified by morphological and biochemical tests and submitted to molecular typing by plasmid DNA analysis, genomic DNA analysis, restriction endonuclease digestion pattern by using EcoR I, Hind III, and Alu I enzymes. 20 species of three different type of CoNS were identified, viz., S. epidermidis, S. saprophyticus and S. haemolyticus.

Keywords

Coagulase Negative Staphylococcus spp., Genomic DNA, Plasmid DNA.

Full Text