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Browsing VRC - 2022 by Issue Date

Browsing VRC - 2022 by Issue Date

Now showing items 1-20 of 43

An extended integrated inventory model with carbon emission

Hisam, M. S. M.; Juman, Z. A. M. S.; Daundasekera, W. B. (University of Jaffna, 2022)

Nowadays, inventory supply chain management plays an important role in the competitive world. To minimize the expenses of both parties, producers’ and buyers’ inventories should be managed properly. So, through the supply ...
Some results on G-frame operator in quaternionic setting

Wasnthika, P. G.; Khokulan, V. (University of Jaffna, 2022)

G frames are a natural generalization of frames which cover many other extensions of frames. Quaternions are an extension of complex numbers from the twodimensional plane to four-dimensional space and form a non-commutative ...
Study on population dynamics using delay differential equation

Dinusha, S.; Selvarajan, S. (University of Jaffna, 2022)

The study of population dynamics is important to biologists, epidemiologists, ecologists, microbiologists, and bio analysts. The mathematical modelling approach is the most powerful and reliable technique to govern the ...
Fixed point theorem on strong fuzzy metric space

Kajan, N.; Sritharan, T.; Kannan, K. (University of Jaffna, 2022)

The problem of constructing a satisfactory theory of fuzzy metric spaces has been investigated by several authors from different point of view. The concept of fuzzy sets was introduced by L. A. Zadeh. Following fuzzy metric ...
Omega open sets with topological groups

Aishwariya, K. D.; Kannan, K.; Vigneswaran, R. (University of Jaffna, 2022)

The topological group is a logical combination of a group and topological space. And also, generalized open sets play a very important role in general topology and it concerns the variously modified forms of irresoluteness ...
Species composition, abundance and distribution of butterflies associated with selected home gardens in “Hanguranketha”, Nuwara Eliya district, Sri Lanka: A preliminary study

Rathnayake, R.R.M.U.N.B.; Karunarathna, D.S.; Dammini Premachandra, W.T.S. (University of Jaffna, 2022)

The species richness, abundance and distribution of butterflies associated with a home garden, which was comprised of three micro-habitats; a grassland [GL], shrubland [SL] and disturbed-forest [DF], at “Hanguranketha” ...
In vitro antioxidant and anti-inflammatory activity of stem and roots of the Psychotria sarmentosa in Sri Lanka

Sewwandi, R.A.S.; Menu, W. M.S.; Madhumali, K.G.B.; Perera, W.T.S.; Samarakoon, D.N.A.W.; Siriwardhene, M.A. (University of Jaffna, 2022)

Psychotria sarmentosa Blume. is a climbing shrub belonging to the family Rubiaceae. It is also called “Gonica” in Sinhala. The aqueous extract of the leaves is used in traditional medicine to treat wounds and bruises. The ...
Microwave-assisted synthesis of lanthanide-based calcium fluoride nanoparticles for luminescent applications

De Silva, C. R. (University of Jaffna, 2022)

Nanotechnology deals with materials in the nanometer size range and promises future applications in biomedical sciences. Among the metal-based nanomaterials, calcium fluoride has received recent attention in biomedical ...
Comparison of antifungal activity of rhizomes of Zingiber officinale from different zones in Sri Lanka against selected fungi

Lakshani, B. H. M. H.; Ravimannan, N.; Sevvel, P. (University of Jaffna, 2022)

Plants have been the source of food, medicine and several other day-to-day life products since ancient times. Many plants have been proven to have medicinal value due to the presence of antimicrobial compounds. Nowadays, ...
Examining the impact of secondary level mathematics teachers’ pedagogical content knowledge on students’ understanding: Focus on symbols and variables

Rupasinghe, D. D.; Vitharana, P.; Amarasinghe, A. K. (University of Jaffna, 2022)

Teachers’ pedagogical content knowledge (PCK) is particularly important to grant for the students’ understanding of algebra at the acquisition stage. Secondary level mathematics teachers show many deficiencies and possess ...
Bioethanol from mango (Mangifera indica) fruit peel wastes using Saccharomyces cerevisiae and yield enhancement

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

The production of bioethanol from diverse peel wastes of underutilized fruits could be one of the alternative fuel systems. The objective of the study was to determine the effect of culture conditions and media composition ...
Students’ perspectives on plagiarism detection

Murugathas, K.; Santharooban, S. (University of Jaffna, 2022)

Plagiarism is a common problem, especially in the electronic information world. It has an adverse impact on academic integrity. Plagiarism has drawn the attention of many academic institutions to implement actions to reduce ...
Herbal remedies that can be used to treat type-1 hypersensitivity reaction associated with allergic rhinitis and asthma in Sri Lanka

Madhuranga, H. D.T.; Wijekumar, P. J.; Walpola, L. H.; Samarakoon, D. N. A.W. (University of Jaffna, 2022)

Allergic rhinitis and asthma are common diseases of the immune system that negatively affect general health, quality of life, and social relationships. Many studies have been conducted to evaluate treatment options for ...
A preliminary study of undergraduates' motivation and perceived mental stress for online education during COVID 19

Gayashani, W. I. A.; Himansi, M. D.N.; Chandrasiri, T. L. A. N.; Hasangani, N. D. S.; Karunaratne, V. G. S. I.; Ranathunga, M. B. N.; Rangajeewa, B. V. A.; Ranawaka, R. A. D.S.; Ranaweera, K. K. A. S.; Bodhika, J.A.P.; Jayasekara, L. (University of Jaffna, 2022)

E-learning has gained massive popularity during COVID 19 period but made different impacts on students. This study aims in analyzing factors affecting creating a virtually favorable environment with less mental stress for ...
Electronic health record auditing for automatic detection of malpractices using LTL rules

Wickramage, C.; Fidge, C.; Ouyang, C.; Sahama, T. (University of Jaffna, 2022)

An audit serves to manage compliance initiatives as it measures current practice against a defined policy or a standard. One promising direction for auditing is the establishment of proper logging mechanisms using event ...
The status of digital literacy and telecommunication accesses of the plantation sector in Sri Lanka

Sirikanth, S. (University of Jaffna, 2022)

Computer technologies and the Internet are dominating all aspects of political and socio-economic life in the world during the COVID-19 pandemic, which is not an exception for Sri Lanka. In this backdrop, the purpose of ...
Impact of the external supervision on the improvement in the achievement of science at G.C.E (O/L): Teachers’ perspective

Piratheeban, K. (University of Jaffna, 2022)

This study aimed to examine the impact of the external supervision processes on the improvement in the achievement of Science in the Kilinochchi district at the G.G.E (O/L) 2020 in the teachers’ view. A quantitative research ...
Determination of soluble sugar profile of selected spices and condiments using HPLC-DAD and C18 cartridge clean-up method

Batuwita, B.K.H.H (University of Jaffna, 2022)

Spices and condiments are popular ingredients in South Asian dishes. Apart from the flavouring properties, they are constantly being used as traditional medicines due to their natural constituents. This study was focused ...
Lepidopteran fauna of Mandaithivu mangrove ecosystem, Jaffna, Sri Lanka

Wijewantha, G. W. A. L. K.; Gnaneswaran, R. (University of Jaffna, 2022)

The mangrove forests, which support the survival of both terrestrial and aquatic inhabitants, are considered some of the most productive ecosystems. Mangrove faunal diversity is well known for its vertebrates and invertebrates ...
Textural and sensory properties and gel microstructure of set-yoghurt made of indigenous and exotic cow milk

Weerasingha, W. V. V. R.; Ranadheera, C. S.; Prasanna, P. H. P.; Silva, G. L. L. P.; Vidanarachchi, J.K. (University of Jaffna, 2022)

Distinctive milk composition variations have been identified among indigenous cattle and high-yielding exotic cattle breeds. A better milk compositional profile leads to dairy products with enhanced technological and ...

Now showing items 1-20 of 43

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