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| 1 | Corporate tax avoidance and high-powered incentives显示文摘 | Mihir A. Desai Dhammika Dharmapala | 2005 | Journal of Financial Economics2005，，1： | 7 |
| 2 | Molecular characterization of cyanobacterial diversity in Lake Gregory, Sri Lanka显示文摘Eutrophication or the process of nutrient enrichment of stagnant waters due to excessive use of fertilizer is becoming a critical issue worldwide. Lake Gregory, an artificial lake situated in Nuwara Eliya, Sri Lanka was once a very attractive landscape feature and recreational area attracting a large number of visitors. Rapid urbanization in surrounding areas and the consequent intensification of agricultural and industrial activities led to eutrophication and siltation in the lake. Present study was conducted to detect cyanobacterial diversity and their ability to produce hepatotoxic microcystins using polymerase chain reaction (PCR)-based techniques. Twenty five water samples (surface and bottom) were collected from the lake and total nitrogen and total carbon were estimated. Cyanobacterial cultures were grown in appropriate media and microscopic observations were used to determine the morphological diversity of cyanobacteria isolated from different sites. Genomic DNA was isolated and purified from cyanobacteria using Boom's method. DNA samples were analyzed by PCR with oligonucleotide primers for 16S rRNA gene and mcyA gene of the operon that encodes a microcystin synthetase. The 16S rRNA gene sequences revealed the presences of cyanobacteria belong to Synechococcus sp., Microcystis aeruginosa, Calothrix sp., Leptolyngbya sp., Limnothrix sp., order Oscillatoriales and order Chroococcales. The sequences obtained from this study were deposited in the database under the accession numbers (GenBank: GU368104-GU368116). PCR amplification of mcyA primers indicated the potential for toxin formation of isolated M. aeruginosa from Lake Gregory. This preliminary study shows that the Lake Gregory is under the potential risk of cyanobacterial toxicity. Clearly more work is needed to extend this finding and clarify if other cyanobacterial isolates have genetic potential to produce microcystin since this lake is utilized for recreational activities. | Dhammika MAGANA-ARACHCHI Rasika WANIGATUNGE Madhushankha LIYANAGE | 2011 | Chinese Journal of Oceanology and Limnology2011，29，4： | 3 |
| 3 | Corporate tax avoidance and high-powered incentives显示文摘 | Mihir A. Desai Dhammika Dharmapala | 2005 | Journal of Financial Economics2005，，1： | 1 |
| 4 | Highperformane liquid chromatographic analysis of the major sweet principle of lo han kuo fruit显示文摘 | H C Makapugay N P Dhammika Nanayakkara D D Soejarto | 1985 | J Agric Food Chem1985，33，： | 1 |
| 5 | Corporate tax avoidance and high-powered incentives 显示文摘 | Mihir Desai Dhammika Dharmapala | 2006 | Journal of Financial Economics2006，79，： | 1 |
| 6 | A rapid quantitative method for the analysis of galanthamine and other amaryllidaccae alkaloids by capillary column gas chromatography 显示文摘 | Bastos Jairo K Xu Li Dhammika Nanaya-kkara N P | 1996 | Nat Prod1996，59，6： | 1 |
| 7 | Corporate tax avoidance and high- powered incentives显示文摘 | Mihir Desai Dhammika Dharmapala | 2006 | Journal of Financial Economics2006，79，： | 1 |
| 8 | Serially Concatenated Space-Time Coded Continuous Phase Modulated Signals显示文摘 | DHAMMIKA Bokolamulla TOR Aulin | 2007 | IEEE Transactions On Wireless Communications2007，06，10： | 1 |
| 9 | Corporate tax avoidance and high-powered incentives显示文摘 | Mihir A. Desai Dhammika Dharmapala | 2005 | Journal of Financial Economics2005，，1： | 1 |
| 10 | Novel derivatives of 9,10-anthraquinone are selective algicides against the musty-odor cyanobacterium Oscillatoria perornata显示文摘 | Schrader K K N P Dhammika Nanayakkara Craig S | 2003 | Applied and Environmental Microbiology2003，69，9： | 1 |
| 11 | High-performance liquid chromatographic analysis of themajor sweet principle of Luo Han Kuo fruits 显示文摘 | Makapugay H C Dhammika N N P Soejarto D D | 2012 | J Agric Food Chem2012，33，： | 1 |
| 12 | Proof for the Concerted Inversion Mechanism in the trans-cis Isomerization of Azobenzene Using Hydrogen Bonding to Induce Isomer Locking显示文摘 | Dhammika B H M Friss T R Enriquez M M | 2010 | J Org Chem2010，75，14： | 1 |
| 13 | High-performane liquid chromatographic analysis of the major sweet principle of Lo Han Kuo fruit 显示文摘 | H C Makapugay N P Dhammika Nanayakkara D D Soejarto | 1985 | J Agric Food Chem1985，33，： | 1 |
| 14 | Novel deriv- atives of 9, 10-anthraquinone are selective algicides against the musty-odor cyanobacterium Oscillatoriapemrnata显示文摘 | Schrader K K Nanayakkara K Dhammika N P | 2003 | Applied and Environmental Microbiology2003，69，9： | 1 |
| 15 | Studies on terpenoids and steroids - 2: Struetures of two new tri - and tetra - oxygenated D: A - friedo - oleanan triterpenes from kokoona zeylanica显示文摘 | Leslie Gunatilaka A A Dhammika Nanayakkara N P | 1984 | Tetrahedron1984，40，4： | 1 |
| 16 | Shepherd, Leglalatures, judges, and paroles: the allocation of discretion under determinate sentencing 显示文摘 | Dhammika Dharmapala Nuno Garoupa Joanna M | 2010 | Florida Law Review2010，62，： | 1 |
| 17 | Kavalactones from Piper methysticum, and their 13C NMR spectroscopic analyses 显示文摘 | Ranjith W Dharmaratne H Dhammika N N P | 2002 | Phytochemistry2002，59，4： | 1 |
| 18 | Novel derivatives of 9,10 anthraqui none are selective algicides against the musty odor cyanobacterium Oscillatoria perornata显示文摘 | Schrader K K Dhammika N P Rimando C S Ganzera A M Schaneberg M Brian T | 2003 | Applied and Environmental Microbiology2003，69，9： | 1 |
| 19 | Enhanced MMSE Channel Estimation using Timing Error Statistic for Wireless OFDM Systems 显示文摘 | ATHAUDAGE CHANDRANATH R N JAYALATH DHAMMIKA | 2004 | IEEE Transactions on Broadcasting2004，50，04： | 1 |
| 20 | Effects of overlapping and windowing on fre- quency response function estimates of systems with ran- dom inputs显示文摘 | Widanalage Dhammika Widanage John L Douce Keith R Godfrey | 2009 | IEEE Transactions on Instrumentation and Measurement2009，58，1： | 1 |
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