Browsing by Author "Perera, P.G.T.N."

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Application of Queuing Models to Reduce the Waiting Time: Case Study Based on Dental Clinic of Colombo South Teaching Hospital
(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019) Perera, P.G.T.N.
One of the major essentials in improving efficiency in the provision of health care services is patient flow. The growing population and health-need due to adverse environmental conditions have led to escalating waiting times and crowding in government hospitals. Queuing theory has effectively been applied to various fields including health care. According to the previous literature, the application of queuing theory enhanced the efficiency of the waiting time of both dentists and patients. As a developing country, Sri Lankan government hospitals also face the challenge of queuing problems. The problem of this study is identifying an appropriate queuing model to enhance the efficiency of waiting time in the Dental clinic in Colombo South Teaching Hospital (CSTH). This study has used the secondary data obtained through the annual bulletin of Colombo South Teaching Hospital Statistic unit, Hospital data Queries and also primary data were obtained by the direct observations and structured questionnaire within January 2019. In the analysis purpose, this study mainly used queuing approach with M/M/1, M/M/S, M/M/S/N systems and the service disciplines like first come first out, priority and shortest job first. Under these queuing models, study has calculated the various parameters to measure the queue performance in a dental clinic in the CSTH. In this case study use M/M/4 queue model to characterize the patient flow in the Dental clinic of CSTH and M/M/S/N system characterized at the light surgery section of the dental. Under these queuing models, this study has measured various parameters such as Utilization factor, Average queue length, Average number of system, Average waiting time in the queue, Average waiting time in the system, Idle time of the servers and Probability of exactly n customers in the system, etc. The Multiple Single-Server queuing model is employed at the dental clinic. This implies that patients on arrival to the clinic join a queue to see any out of about 3 to 5 doctors who are consulting at the same time. All dentists have a single line of patients waiting to be attended to and the patients are directed to the queues by the nurses and record staff of the clinic. The patients are directed to queues in the order they arrived. This study has considered that the number of dentists is less than with the number of beds. Practice shows that the majority of the cases the dentists can deal with more than 1 patient in 25 minutes. Some of the suggestions from patients included more dentists be employed to reduce waiting time on the queue, doctors need to come on time to avoid stagnation of patients at the clinic, first-come-first-serve discipline should be observed on the queue to ensure fair play, and records staff should not take bribe from patients for the purpose of jumping the queue. Queues should arrange on the aspect of service provided by each dentist
Financial Literacy and Retirement Planning; Based On Wewala West GN Division
(19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka, 2018) Perera, P.G.T.N.
In present society several severe troubles which arise due to the lack of financial literacy and specially issues regarding retirement life confidence are observed. A very few out of the Sri Lankan population have retirement plans while a majority have a blank idea about it. Several factors can be identified which determine this difference of numbers. According to the previous literature in many countries, financial literacy rate is a considerable factor among other factors which decide whether an individual has a retirement plan or not. Research Problem of this study is to check whether financial literacy rate is a significant factor which determine owning a retirement plan in the Sri Lankan context. In addition, minor objectives of this study are constructing indices for financial literacy and retirement life confidence, identifying the basic demographic factors affecting the financial literacy and retirement life confidence. A sample of 300 households from Wewala West GN division of Colombo District is selected for this research using simple random sampling technique. Household title list of Wewala west GN division is used as the sampling frame and the sample is selected by using Microsoft Excel software. The response rate of this study is 72%. The study only used primary data for research purposes and they were collected through a structured questionnaire. The questionnaire contained basically 3 parts namely demographic data, financial literacy data and retirement planning data. Indices for financial literacy rate and retirement life confidence are constructed using weighted average method. Weight for each component is defined according to the component score coefficient matrix result of confirmatory factor analysis. With the use of these index values, people are categorized into two categories as high and low using the median value of each index. It was identified that gender, household’s monthly income, education level, sector of job and age category have a significant impact on the financial literacy rate while race does not have a significantly effect on financial literacy rate. Education level and age are the most important factors among the identified factors. Household’s monthly income, education level, age, ownership of house and ownership of motor vehicle categories are identified as determinants of retirement life confidence while gender, marital status, race, number of dependents and sector of job does not have a significant effect on retirement life confidence. Monthly income, education level and ownership of the house are the most important factors among the identified factors. Finally, it can be concluded that if someone has good financial literacy rate, such respondent tends to choose a retirement plan. Thus there is a relationship between financial literacy rate and having a retirement planning
Tourists’ Satisfaction between Public Bus Transport Service and Railway Transport Service in Polonnaruwa Tourist Area
(Staff Development Unit, Faculty of Social Sciences, University of Kelaniya, Sri Lanka., 2020) Perera, P.G.T.N.
Sri Lankan tourism industry has been growing rapidly since gaining independence from the British. Sri Lanka has continued to attract foreign investors and tourists to the country. The transport system is an essential factor to maintain tourists’ mobility to reach their destinations. In the Sri Lankan public transportation system there are mainly buses and railways as transport modalities. Previous studies have proved that tourists are intended to use the railway as a public transportation modality in many other countries. The objective of this study is to compare tourists’ satisfaction between public bus transport service and railway transport service in Sri Lanka. This study used structured interviews with tourists during their visit to Polonnaruwa, Sri Lanka. Convenience sampling method was used to gather data. Frequency analysis, Wilcoxon Signed Rank Test and Mann- Whitney U Test was used as analytical tools. According to the results of this study, tourists showed higher satisfaction with trains than buses regarding some service attributes such as less traffic, the availability of information, safety and security in trains and stations, space availability and ticket price while some tourists showed higher satisfaction with bus service than the railway service such as service frequency and accessibility to the bus stops. The same level of satisfaction has shown for the convenience of the time schedule regarding both transport services. Finally, this study demonstrates that the tourists’ satisfaction of public bus transport services is less than railway transport service in Sri Lanka. Therefore, responsible parties should take necessary actions to improve Sri Lankan public transport services; especially for increasing tourists’ satisfaction. According to the responses, a number of recommendations can be pointed out such as how tourists like to pay more for getting a comfortable and frequent travel experience for both modes’ buses and trains.
බෝවන රෝගයන්හි ව්‍යාප්තිය කෙරෙහි, ජනගහනයේ ප්‍රාදේශීය ව්‍යප්තියෙහි බලපෑම
(Department of Economics, University of Kelaniya, 2015) Perera, P.G.T.N.; Nugaliyadda, D.R.K.; Sabrina, M.M.F.; Sewwandi, E.W.S.; Silva, P.H.N.K.; Senarathne, A.D.Y.
ශ්‍රී ලංකාවේ ජන සංයුතියේ ව්‍යුහාත්මක වෙනස්කම්
(Department of Economics, University of Kelaniya, 2015) Perera, P.G.T.N.; Nugaliyadda, D.R.K.; Senarathne, A.D.Y.