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Efficacy of food-grade diatomaceous earth as grain protection against Rhyzopertha dominica -Lesser Grain Borer in stored chickpea under tropical conditions

Printhajini, P.; Sellathurai, T. (University of Jaffna, 2022)

The efficacy of different concentrations of diatomaceous earth against the Rhyzopertha dominica in chickpea was evaluated. The selected concentrations were 0.01%, 0.05%, 0.1%, 0.5%, and 1% on (W/W) basis. Each treatment ...

Seed germination and methods to break seed dormancy in Sri Lankan endemic wild rice species Oryza rhizomatis

Gowri, R. (University of Jaffna, 2022)

Wild species Oryza rhizomatis which has been reported only from Sri Lanka. Therefore, it is endemic to the country and was discovered in 1989 for the first time. It is distributed in the dry zone of Sri Lanka during the ...

Study the Silica Content of Paddy Husks from Different Varieties of Paddy Cultivated in North Western Province, Sri Lanka

Jayathilake, S.M.C.Y.; Manoranjan, T. (University of Jaffna, 2022)

Rice husk is one of the main agricultural waste available in Sri Lanka. They are the outer covering of rice grains. Once the paddy is separated from rice grain, the husk is removed from rest of the grain. This study show ...

Preparation and Characterization of Water-Based Wood Adhesive Using Tamarind Seed Powder

Senevirathna, M.A.S.R.; Dahanayaka, S.R.S. (University of Jaffna, 2022)

Adhesives are used all over the world to combine the materials together. Due to its extended usage environment conservation authorities emphasize the importance of reducing the volatile organic content in adhesive manufacturing ...

Comparative In Vitro antimicrobial activity of selected four medicinal plant leaves

Gowri, R.; Panambara, P.A.H.R.; Vinotha, S. (University of Jaffna, 2022)

In the treatment of diabetes mellitus, the traditional medical system of Sri Lanka has demonstrated to be far more effective, with less side effects and lower costs than modern synthetic medications. Ethnobotanical research ...

Bioethanol Production from Coconut Fiber Wastes using Saccharomyces Cerevisiae

Ilangarathna, D.A.; Kapilan, R. (University of Jaffna, 2022)

The principal energy source of the globe at present is non-renewable fossil fuels. With the arising of global dilemmas, the human population demands new energy sources. Coconut palm wastes have been identified as an important ...

Extraction of Lactic Acid from Corn Kernels by Streptococcus Thermophilus Fermentation

Amaraweera, A.P.S.M.; Senevirathna, M.A.S.R.; Singhalage, I.D. (University of Jaffna, 2022)

Lactic acid is used in pharmaceutical, cosmetic and polymer industries. Lactic acid can be synthesized by fermenting glucose obtained from the hydrolysis of starch. In the present study, powdered corn kernels were hydrolyzed ...

Mathematical Modelling of the Spread of COVID-19 Cases in Sri Lanka

Silva, K.K.T.S.; Dharmawardane, P.M.N. (University of Jaffna, 2021)

Sri Lanka confronted a substantial challenge in responding to the spread of the novel strain of coronavirus (SARS-CoV-2), which was declared as a pandemic by the World Health Organization. The government introduced ...

Survival Analysis of Primary Biliary Cirrhosis Patients

Kumarasinghe, P.B.W.S.R.; Ekanayake, E.M.P.; Napagoda, N.A.D.N. (University of Jaffna, 2024)

Primary Biliary Cirrhosis (PBC) is a dreadful rare disease as it affects an important human organ, the liver. This study was conducted by survival analysis on Primary Biliary Cirrhosis patients in the United States using ...

Brine shrimp lethality assay with selected medicinal plants extracts

Suneka, S.; Manoranjan, T. (University of Jaffna, 2021)

Brine Shrimp Lethality Assay (BSLA) is a preliminary and important screening tool for cytotoxicity. This assay monitors toxic substances in plant extract and other based solvents. The toxic substance kills laboratory ...

Ranking Sri Lankan Universities Based on Study Program Cut-offs

Arivalzahan, S.; Nuwan Kumara, D. (University of Jaffna, 2024)

Since 2015, the University Grants Commission has been releasing separate district-wise cut-off Zscores for various universities across different study programs. This allows for a comparison of universities based on student ...

Nutritional composition and fatty acid profile of Yellowfin Tuna (Thunnus albacares) by-products in Sri Lanka

Dilini Jayaweeraa, D.; Dargentolleb, C.; Kuganathanc, S. (University of Jaffna, 2024)

The present study evaluated the nutritional composition and fatty acid profile of juvenile yellowfin tuna (n = 12, mean weight = 0.875 ± 0. 107 kg) heads, dorsal skins, and caudal muscles with fins. Fatty acid methyl esters ...

Diversity and Abundance of Macroinvertebrates in Kaakkaithivu coastal waters, Jaffna estuary

Vithusha, A.; Piratheepa, S. (University of Jaffna, 2021)

This study analyzed the diversity and abundance of aquatic macroinvertebrate community in the Kaakkaithivu coastal waters, Jaffna estuary. The sampling was carried out from July 2018 to January 2019. A total of 459 ...

The effects of acid and cellulose concentrations on the acid hydrolysis efficiency of waste cellulose from Palmyrah fruit husk

Srithevi, S.; Sashikesh, G. (University of Jaffna, 2021)

Underutilized cellulose from the Palmyrah Fruit Husk (PFH) was the source of the environmental problems. However, converting waste cellulose into glucose through acid hydrolysis to produce value-added fuels and chemicals ...

Length-Weight relationship and Condition Factor of Sardinella gibbosa (Bleeker, 1849) from the North-West Coast of Sri Lanka

Chanaka Supun Bandara Pallemulla, P.M.R.; Kuganathan, S.; Santos, J.; Jayasinghe, P. (University of Jaffna, 2024)

The present study aimed to determine the length-weight relationship and condition factor of Sardinella gibbosa (Bleeker, 1849) on the North-West coast of Sri Lanka. The samples were collected every month from three major ...

Extraction, modification, characterization and metal adsorption properties of cellulose obtained from banana stem and bamboo stem

Chandrawansha, N.P.S.I.; Arasaretnam, S. (University of Jaffna, 2024)

Banana stem and bamboo stem can be known as few of the agricultural residues in the agricultural sector, which are inexpensive, readily available, environmentally friendly, and recyclability. Cellulose was extracted from ...

A New Approach to Find Integral Solutions for the Mordell’s Equation, 𝑦 2 + 2 = 𝑥 3

Ekanayake, E.M.P.; Dharmawardane, P.M.N. (University of Jaffna, 2021)

— Mordell’s equation, 𝑦 2 + 2 = 𝑥 3 , which is historically important, was solved using complex numbers and more specifically using the unique factorization method. In this paper, it is shown that Mordell’s equation ...

Distribution and Microhabitat Associations of an Apodous Holothurian: Synaptula recta (Semper, 1868) in the Shallow Coastal Waters of Selected Islands, Sri Lanka

Rameshkumar, N.; Rasalingam, R.; Thulasitha, W.S. (University of Jaffna, 2024)

Apodous holothurians lack tube feet and are characterized by their vermiform retractable bodies. Even though a few species of apodous holothurians were recorded from Sri Lankan waters a long time ago, there was no record ...

Decomposition and Insect Succession on Guinea Pig Carcass in Jaffna Sri Lanka

Chandrasegaran, T.; Gnaneswaran, R. (University of Jaffna, 2024)

Carrion insects visit the carcass in a predictable order depending on the different stages of decomposition, which is referred to as insect succession. Location and the position of the carcass affect the rate of decomposition ...

Study on bioactivity of lime, Citrus aurantifolia (Christm.) against larvae of Diamond back moth, Plutella xylostella (L.) on cabbage crop under laboratory condition.

Arani, Y.; Nithiyagowry, R. (University of Jaffna, 2021)

High feeding activity of larval stages of Plutella xylostella leads to reduction in yield and causes economical loss. The uses of plant products are reported to be an alternative to synthetic pesticides for insect pest ...

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