Science: Recent submissions

Now showing items 141-160 of 846

Cellulose Supported Magnetic Nanohybrids: Synthesis, Physicomagnetic Properties and Biomedical Applications-A Review

Mohamed Abdul Cader Mohamed Haniffa; Khadija Munawar; Ching Yern Chee; Sumit Pramanik; Ahmed Halilu; Hazlee Azil Illias; Muhammad Rizwan; Senthilnithy, Rajendram; Mahanama, K.R.R; Tripathy, Ashis; Mohd Fahmi Azman (Elsevier, 2021)

Cellulose and its forms are widely used in biomedical applications due to their biocompatibility, biodegradability and lack of cytotoxicity. It provides ample opportunities for the functionalization of supported magnetic ...
Analysis and forecast of dengue incidence in urban Colombo, Sri Lanka

Erandi, K.K.W.H.; Perera, S.S.N.; Mahasinghe, A. C. (2021)

Background: Understanding the dynamical behavior of dengue transmission is essential in designing control strategies. Mathematical models have become an important tool in describing the dynamics of a vector borne disease. ...
An Optimal Lockdown Relaxation Strategy for Minimizing the Economic Effects of COVID-19 Outbreak

Mahasinghe, A. C.; Erandi, K. K. W. H.; Perera, S.S.N. (2021)

In order to recover the damage to the economy by the ongoing COVID-19 pandemic, many countries consider the transition from strict lockdowns to partial lockdowns through relaxation of preventive measures. In this work, we ...
STAR-CRITICAL RAMSEY NUMBERS FOR CYCLES VERSUS K4

Jayawardene, Chula J.; Narvaez, David; Radziszowski, Stanis law P. (2021)

Given three graphs G, H and K we write K → (G, H), if in any red/blue coloring of the edges of K there exists a red copy of G or a blue copy of H. The Ramsey number r(G, H) is defined as the smallest natural number n ...
An SIER model to estimate optimal transmission rate and initial parameters of COVD-19 dynamic in Sri Lanka

Wickramaarachchi, W.P.T.M.; Perera, S.S.N. (2021)

COVID-19 global outbreak has been significantly damaging the human well-being, life style of people and the global economy. It is clear that the entire world is moving into a dangerous phase of this epidemic at the moment. ...
Development and validation of a portable paper-based low-cost electrochemical sensor for the detection of monosodium L-glutamate in food

Joseph, Ornella A; Dineesha, Nipuni; Kaumal, M.N. (Faculty of Technology, South Eastern University of Sri Lanka, Oluvil, Sri Lanka., 2021)

Monosodium L-glutamate (MSG) is a common ingredient that is added to food to enhance its taste. However, due to the negative perception of consumers towards MSG, most food manufacturers do not inform customers if MSG has ...
Tropical vibes from Sri Lanka - cyclotides from Viola betonicifolia by transcriptome and mass spectrometry analysis

Rajendran, S; Slazak, Blazej; Mohotti, Supun; Stromstedt, Adam A.; Ulf Goransson; Hettiarachchi, Chamari M.; Gunasekera, Sunithi (Elsevier, 2021)

Cyclotides are an extremely stable class of peptides, ubiquitously distributed in Violaceae. The aim of the present study was to investigate the presence of cyclotides in Sri Lankan Violaceae plants, using combined tools ...
A comparison of Bayesian Markov chain Monte Carlo methods in a multilevel scenario

Rasan, Darshika; Sooriyarachchi, M.R.; Pinto, Vimukthini (Taylor and Francis, 2021)

Multilevel modeling is a modern approach to deal with hierarchical or a nested data structure which can assess the variability between clusters. Bayesian Markov Chain Monte Carlo (MCMC) methods of estimations are advanced ...
Facility reference level for common x-ray procedures: A preliminary study

Satharasinghe, DM; Jeyasugiththan, J; Pallewatte, AS; Wanninayake, WMNMB (Asia-Oceania Congress of Medical Physics (AOCMP), 2020)

Ionizing radiation is an essential tool in medical diagnosis and it brings great benefit to the patient. However, the associated risks due to the radiation are unavoidable. Therefore, close monitoring of radiation exposure ...
Molecular phylogenetics of Phyllanthaceae inferred from Wve genes (plastid atpB, matK, 3 ndhF, rbcL, and nuclear PHYC)

Kathriarachchi, Hashendra; Hoffmann, P.; Samuel, R.; Wurdack, K. J.; Chase, M. W. (2005)

Phyllanthaceae are a pantropical family of c. 2000 species for which circumscription is believed to be coincident with subfamily Phyllanthoideae of Euphorbiaceae sensu lato (Malpighiales) excluding Putranjivaceae. A ...
A phylogenetic classification of Phyllanthaceae (Malpighiales; Euphorbiaceae sensu lato)

Hoffmann, P.; Kathriarachchi, Hashendra; Wurdack, K. J. (2006)

A phylogenetic classification of Phyllanthaceae Martynov (Malpighiales) is presented. Phyllanthaceae are one of five segregates of Euphorbiaceae sensu lato recognised at family level by the Angiosperm Phylogeny Group. The ...
PHYLOGENETICS OF TRIBE PHYLLANTHEAE (PHYLLANTHACEAE; EUPHORBIACEAE SENSU LATO) BASED ON NRITS AND PLASTID MATK DNA SEQUENCE DATA

Kathriarachchi, Hashendra; Samuel, R.; Hoffmann, P.; Mlinarec, J.; Wurdack, K. J.; Ralimanana, H.; Stuessy, T. F.; Chase, M. W. (2006)

Phylogenetic relationships within tribe Phyllantheae, the largest tribe of the family Phyllanthaceae, were examined with special emphasis on the large genus Phyllanthus. Nuclear ribosomal ITS and plastid matK DNA sequence ...
Systematics of genus Garcinia L. (Clusiaceae) in Sri Lanka: New insights from vegetative morphology

Nimanthika, W. J.; Kathriarachchi, Hashendra (2010)

The genus Garcinia L. (Family: Clusiaceae) is represented by ten species in Sri Lanka including five endemic species. Systematics of the genus hitherto were primarily based on reproductive morphology. A recent study was ...
MOLECULAR PHYLOGENETICS OF PHYLLANTHACEAE: EVIDENCE FROM PLASTID MATK AND NUCLEAR PHYC SEQUENCES

Samuel, R.; Kathriarachchi, Hashendra; Hoffmann, P.; Barfuss, M.; Wurdack, K. J.; Chase, M. W. (2005)

Plastid matK and a fragment of the low-copy nuclear gene PHYC were sequenced for 30 genera of Phyllanthaceae to evaluate tribal and generic delimitation. Resolution and bootstrap percentages obtained with matK are higher ...
Conserved regions of Plasmodium vivax potential vaccine candidate antigens in Sri Lanka: Conscious in silico analysis of prospective conformational epitope regions

Amarasinghe, S. L; Kathriarachchi, Hashendra; Udagama, Preethi V (2014)

Objective: Mapping and modeling of conformational B cell epitope regions of highly conserved and protective regions of three merozoite candidate vaccine proteins of Plasmodium vivax, i.e.Merozoite Surface Protein-1 (PvMSP-1), ...
Andrachne cuneifolia (Phyllanthaceae; Euphorbiaceae s.l.) is a Phyllanthus

Vorontsova, M. S.; Hoffmann, P.; Kathriarachchi, Hashendra; Kolterman, D. A.; Chase, M. W. (2007)

The phylogenetic relationships, morphology, and distribution of the enigmatic species Andrachne cuneifolia of problematic generic affiliation were examined. Nuclear internal transcribed spacer (ITS) and plastid matK sequences ...
Ecology of Two Selected Liana Species of Utility Value in a Lowland Rain Forest of Sri Lanka: Implications for Management

Kathriarachchi, Hashendra; Tennakoon, K. U.; Gunatilleke, C. V. S.; Gunatilleke, I. A. U. N.; Ashton, P. M. S. (2004)

Calamus ovoideus Thw. and Coscinium fenestratum Colebr. are economically important, naturally growing liana species in the disturbed habitats of lowland rain forests in Sri Lanka. Harvesting their mature stems has ...
What happens when the nuclear species is absent? Observations of mixedspecies bird flocks in the Hiyare Forest Reserve, Galle, Sri Lanka

Perera, P. L. M. M.; Kotagama, S.W.; Goodale, E.; Kathriarachchi, Hashendra (2016)

Mixed-species flocks play a prominent role in the social organisation of birds, especially in the tropics (Greenberg 2000, Sridhar et al. 2009) and it has long been observed that some ‘nuclear’ species play essential ...
Taxonomic Revision of the Temperate Woody Bamboo Genus Kuruna (Poaceae: Bambusoideae: Arundinarieae)

Attigala, L.; Kathriarachchi, Hashendra; Clark, L. G. (2016)

Previous molecular phylogenetic analyses based on plastid DNA sequence data supported the recognition of Kuruna as a new temperate woody bamboo (Arundinarieae) genus, representing the twelfth major linage of Arundinarieae. ...
Isolation and characterization of Trichoderma erinaceum for antagonistic activity against plant pathogenic fungi.

Herath, H.H.M.A.U.; Wijesundera, R.L.C.; Chandrasekharan, N.V.; Wijesundera, W.S.S.; Kathriarachchi, Hashendra (2015)

Trichoderma is reported to be one of the most widely distributed soil fungi and the biocontrol potential of Trichoderma has been studied against a wide range of plant pathogenic fungi. In the present study T. erinaceum ...

Now showing items 141-160 of 846

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