http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/5668 2026-04-07T15:09:03Z 2026-04-07T15:09:03Z Peiris, T.U.I. http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/3702 2022-10-21T07:51:43Z 2012-01-01T00:00:00Z

Title: An Empirical Investigation of News Impact on Stock Market Volatility during War and Post-war Periods in Sri Lanka Authors: Peiris, T.U.I. Abstract: This paper fits Exponential Generalized Auto-Regressive Conditional Heteroskedasticity (EGARCH) and Threshold GARCH (TGARCH) models to the daily closing All Share Price Index (ASPI) of Colombo Stock Exchange (CSE) for the War and Post-war Periods to recognize the leverage and news impact in CSE. The empirical results indicate that the news impact is symmetric and the leverage effect does not exist during the war periods. However, in the post-war period leverage effect exists and the news impact is asymmetric. During both these periods a positive returns shock to CSE produces lower volatility than a negative returns shock. Also the relationship between volatility and returns is negative for both the periods

2012-01-01T00:00:00Z Mufas, A.H.M. Perera, O.D.A.N. http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/3700 2022-10-21T07:51:53Z 2012-01-01T00:00:00Z

Title: Alteration of Pitaya Pulp into a Value Added Product to Reduce the Post Harvest Losses Authors: Mufas, A.H.M.; Perera, O.D.A.N. Abstract: Pitaya (Hylocereus undatus) is well known in the Asian region. It is delicious and having higher nutritional value. Study was conducted to develop ice-cream incorporated with pitaya pulp and further studies were undergone to determine the most acceptable formula for value added ice cream and evaluate the shelf life. The samples were prepared into three different portion of pitaya pulp. Mashed pitaya pulp, the proportion of 12%, 15%, 18% (w/w) was added to the pasteurized ice-cream mix separately. Finally ice-cream was stored under freezing condition. This ice-cream was evaluated with 20 semi trained panelists with seven points’ hedonic scales to find out the standard formula. Sensory, chemical and microbial analyses were conducted for 12 weeks to evaluate the shelf life. Chemical, physical components of the ice-cream were determined according to the methods recommended by AOAC (1995). Formula with 12% pulp was selected according to the panelist preference. Fat content of ice cream was 45.37±0.99% (dry basis), protein was 7.73±0.34%.There was a slight increase in titratable acidity in the ice cream with time whilst pH, TSS decreased. There were no significant changes of pH during the storage. Microbial number also was reduced with time. The results revealed the possibility of manufacturing of value added ice cream with pitaya pulp showing satisfactory consumer acceptability

2012-01-01T00:00:00Z Panditharatne, P. Wijesundara, S. http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/3698 2022-10-21T07:52:03Z 2012-01-01T00:00:00Z

Title: A Study on the Job Satisfaction of Secondary School Teachers: The Case of Kandy District in Sri Lanka Authors: Panditharatne, P.; Wijesundara, S. Abstract: The main purpose of this paper is to describe the level of job satisfaction and to identify the factors that affect the job satisfaction of secondary school teachers in Kandy district. The theoretical frame work used in this study was the “Three Domain Model” which was created by Dinham and Scott, (2000) by revising the Herzberg’s two-factor theory. The study used a ‘mixed’ method design that included a questionnaire survey and a multiple case study. A questionnaire created for the “Teacher 2000 project” by Dinham and Scott, (1998) was adapted in this study to determine the level of job satisfaction and to identify the factors affecting it the sample for the study consisted of 507 secondary school teachers in Kandy district. Present paper discussed only the results of the quantitative phase. It was revealed that the overall job satisfaction of secondary school teachers were low (34.2%). Moreover, the respondent’s initial satisfaction with teaching had changed towards dissatisfaction over time. The application of factor analysis resulted in the extraction of eight factors which fell into all three domains (Dinham and Scott, 2000). The corebusiness of teaching factors included: student achievement, professional self growth, collegial support. The school level factors included: school leadership, climate, decision making and the system level/societal factors included, merit promotion, school reputation, status and image of teachers, workload and the impact of educational reforms. Respondents were most satisfied with corebusiness of teaching factors except with the professional self development factor. They were least satisfied as a whole with System level/Societal factors, School level factor and the opportunities for the professional self development. School level factors showed the most variation, reflecting the influence of the leadership style of the principal. The findings suggest that the actions to improve teacher satisfaction are most likely to be effective at the school level. The confirmatory factor analysis showed that the instrument could explain 61% of the total variance. Therefore, we have decided to conduct case studies (second phase) on selected teachers, to identify further factors which have not included in the Three Domain Model, that affect teacher job satisfaction.

2012-01-01T00:00:00Z Munasinghe, D.M.W. http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/3696 2022-10-21T07:51:36Z 2012-01-01T00:00:00Z

Title: A Study on the Effectiveness of the Teaching Practice Component in the Diploma in Early Childhood and Primary Education Programme Authors: Munasinghe, D.M.W. Abstract: Distance education as a vehicle for the delivery of course content, as well as complete academic programmes, continues to grow rapidly in the world. Distance education or distance learning is a field of education that focuses on the pedagogy, technology and instructional system design that aim to deliver education to students who are not physically “on site” as in a traditional classroom or campus. There are theoretical and practical courses given through the distance mode. Teaching practice is the most important aspect and any individual should have the competence to teach, because teaching directly affects the child who studies in the classroom. Successful teachers are not simple charismatic, persuasive and expert presenters; they should also have the knowledge, skills and techniques of making productive use of teaching materials to suit the varying levels of the learners. Therefore, teachers should have adequate teaching practice skills to teach in the classroom. Diploma in Early Childhood and Primary Education (Dip. in ECPE) programme is one of the programmes conducted by the Open University of Sri Lanka. Teaching practice is one main component that completes the programme. This research inquires whether the teaching practice component of the Dip. in ECPE programme provides adequate training to students to teach preschool and primary schools children of different ability levels, simultaneously

2012-01-01T00:00:00Z