SLIIT Journal of Humanities and Sciences [SJHS] Volume 05 Issue i 2024

Permanent URI for this collectionhttps://rda.sliit.lk/handle/123456789/4519

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Open Access
Comparing Methods for Detecting Anomalous Values in Automated Laboratory Processes
(Faculty of Humanities and Sciences, SLIIT, 2024-05-30) Madhushanka, H. M. S; Amaratunga, D
Outlier detection is used in many domains. In automated laboratory processes, detecting anomalous values is critical for ensuring the reliability of experimental results. This study compares various outlier detection methods, including traditional statistical approaches like Mahalanobis distance, Median and mean absolute deviation (MAD), as well as modern machine learning techniques such as Isolation Forest, Angle Based Outlier Detection (ABOD), and Local Outlier Factor (LOF). The performances of these methods were evaluated using simulated multivariate data, with different types of outliers and levels of contamination. Comparisons are made using sensitivity, precision, and mainly the F2 score, a weighted metric of sensitivity and precision that gives more weight to precision. The results show that in univariate settings, the Median MAD method works consistently well. For multivariate scenarios, Mahalanobis methods with Minimum Covariance Determinant estimates and Minimum Volume Ellipsoid estimates work well even for high contamination percentages. This study highlights the importance of selecting an appropriate outlier detection method for the situation.
Open Access
Coupling Therapeutic Justice with Professional Mediation for Settlement of Disputes in Sri Lanka.
(Faculty of Humanities and Sciences, SLIIT, 2024-06-10) Gamage, T
The concept of Therapeutic Justice examines how the legal processes and the behaviour of justice sector actors have a psychological impact on the people. The adversarial judicial system invariably calls for exercise of authority, vigorous advocacy for the vindication of rights and proceeds to jjudgment without understanding the disputants’ perceptions or emotions. This paper argues for conceptualising Therapeutic Justice into mediation as the latter recognizes the human element in conflict and the two schools of thought share similar attributes such as party autonomy and procedural fairness. The Study reviews the evidence from Eleven (11) civil cases litigated in Sri Lanka with its focus on anti-therapeutic impact on the disputants during the pre-litigation, litigation and post litigation stages of each case during the years 2021 to 2023 resulting from partaking in adversarial processes. The findings highlight the need to experiment and adopt private or professional mediation within the legal framework for Alternative Dispute Resolution (ADR) through the lens of therapeutic justice as part of judicial reforms in Sri Lanka and of the corresponding need to set up an independent and vibrant professional culture of mediation.
Open Access
Evaluation of Functional Characteristics of Jackfruit Seed Flour and Its Application in Developing a Nutrient-Dense Snack
(Faculty of Humanities and Sciences, SLIIT, 2024-12-31) Gunarathna. R. W. M. M.; Samarakoon, E. R. J.; Janith, R. M. L.
Deep-fried snacks contain high calories and fat. Jackfruit seeds are nutrient-dense and contain a high level of carbohydrates and proteins with relatively low-fat content. This study was conducted to evaluate the functional properties of jackfruit seed flour and develop a snack. Jackfruit seeds were processed using three different methods: roasting, oven drying, and boiling. Flour produced from the boiling method contained the highest moisture content (7.04%), water-holding capacity (2.08 g/g), bulk density (0.81 g/cm3 ), oil-holding capacity (2.04 cm3 /g) , swelling power (6.91%), and the lowest solubility (7.69%). Flour made from the roasting method showed the lowest oil-holding capacity (1.84 cm3 /g). The snack was prepared using the extrusion technique, and the flour mixture contained jackfruit seed flour, rice flour, and wheat flour in a 4:1:1 ratio. The frying time for the snacks prepared using roasted, boiled, and oven-dried jackfruit seed flour was 15,17, and 10 seconds, respectively. Boiled jackfruit seed flour-based snacks obtained the highest consumer preference. Proximate analysis showed that the boiled jackfruit seed flour-based snack contained 83.61% carbohydrate, 4.74% moisture, 6.46% fat, 2.90% ash, 1.70% fibre, and 0.59% protein. The result of this study demonstrated that jackfruit seed flour can be effectively utilized to produce a low-fat snack with a favourable nutritional profile.
Open Access
Learning and Innovation Skills in the General English Textbook for Advanced Level in Sri Lanka: A Qualitative Content Analysis
(Faculty of Humanities and Sciences, SLIIT, 2024-12-31) Lawrence, D; Wijesekera, H. D
The dawn of the 21st century and the associated technological, demographic, and socio-economic changes necessitated reforms in language education to equip learners with a diverse variety of skills, commonly referred to as 21st century learning and innovation skills, in addition to content and knowledge. Language teaching material, an integral and important element in teaching/learning, must evolve correspondingly to meet the demand for these skills. Centrally developed textbooks are the primary materials used in English as a second language teaching/learning in the Sri Lankan public education system. This paper investigates the representation of learning and innovation skills (Creativity, Critical Thinking, Communication, and Collaboration) in the current General Certificate of Education Advanced Level (G.C.E. (A/L)) English textbook of Sri Lanka. Qualitative Content Analysis (QCA) was employed as the research methodology, and a coding frame was developed and utilized as the primary analytical tool. Two additional independent co-coders with diverse expertise also engaged in coding to boost the study’s trustworthiness. The findings reveal that the textbook contains a variety of activities that promote Creativity, Critical Thinking, Communication and Collaboration skills. However, the results indicate that certain subskills are not adequately emphasized to enhance the holistic development of the 21st century skills. The study offers insightful recommendations for curriculum and material developers.
Open Access
Queer Identities in The Seven Moons of Maali Almeida by Karunatilaka ( 2022) and The Song of Achilles by Miller (2019): A Comparative Analysis from a South Asian Perspective
(Faculty of Humanities and Sciences, SLIIT, 2024-12-31) Rodrigo, D; Jayamanna, H
This research study attempts to present a comparative analysis of the queer identities portrayed in The Seven Moons of Maali Almeida by Karunatilaka (2022) and The Song of Achilles by Miller (2019) from a South Asian perspective to examine how cultural, historical, and socio-political aspects of their respective geographical settings influence such identities in both novels and to identify the narrative techniques and characterizations used in them to portray their queer relationships. Moreover, the central questions that guide this study are: 1) how queer do the identities depicted through their main characters appear to be; and 2) and what similarities and differences emerge in the portrayal of their queer relationships. To achieve these objectives, a qualitative research approach is adopted where the data is collected by subjecting the respective novels to a thorough critical reading and extracting the relevant evidence from their narratives using critical discourse analysis. The data is analysed using techniques developed from queer theory, semiotics, and critical discourse analysis. Finally, this research attempts to reveal from a South Asian perspective the author’s expectation for the queer identities portrayed in the two relevant novels while illuminating on the fact that they both appeal for an inclusive society.