Papers by Romer C . Castillo
The Indonesian Green Technology Journal
Green practice is a worldwide policy and everybody is concerned with sustainable development. Thi... more Green practice is a worldwide policy and everybody is concerned with sustainable development. This study assessed the green warehousing (GWH) practices in the Philippines and its sustainability dimensions. It utilized a quantitative descriptive-survey approach with questionnaire for data collection. The sample consists of 48 warehouses with warehouse managers as respondents. Statistical tests used were frequency and percentage, mean and standard deviation, Kruskal-Wallis H-Test, and Mann-Whitney U-Test. Results showed most of participating warehouses are located in Parañaque, corporate-owned, small enterprises, operating for 15 years or less, with less than 100 employees, and private. Results further revealed that GWH practices on inventory management and operations were almost always practiced while those on facility design, layout, mechanical handling equipment, staff, and warehouse management system (WMS) were often practiced. Environment, social, and economic GWH practices are a...
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Journal of Innovation Information Technology and Application (JINITA)
Digital trade facilitation is increasingly becoming essential in a modern customs environment. Ma... more Digital trade facilitation is increasingly becoming essential in a modern customs environment. Many countries have started computerizing and automating their trade procedures, the success of which depends upon their government’s information technology development. In usability perspective, the most appropriate success measure of an information system is the end-users’ satisfaction. This study assessed the end-user computing satisfaction (EUCS) on digital trade facilitation in the Philippines, known as electronic to mobile (e2m) system. This also determined the profile of e2m clients and the differences on their satisfaction. This further established correlations among the dimensions of EUCS. The study is a descriptive-survey research, which used a valid and reliable EUCS questionnaire. The respondents consisted of 49 e2m clients who were selected conveniently. Statistical tests employed were Mann-Whitney U-Test, Kruskal-Wallis H-Test, and Spearman’s Correlation. Results showed that ...
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Asia Pacific Journal of Multidisciplinary Research, 2015
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Factoriangular numbers resulted from adding corresponding factorials and triangular numbers. If F... more Factoriangular numbers resulted from adding corresponding factorials and triangular numbers. If Ftn is the nth factoriangular number, n! is the factorial of n and Tn is the nth triangular number, then Ftn = n! + Tn. In this study, interesting results on the representations of factoriangular number as sum of two triangular numbers and as sum of two squares are presented.
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Asian Research Journal of Mathematics
A factoriangular number is a sum of a factorial and its corresponding triangular number. This pap... more A factoriangular number is a sum of a factorial and its corresponding triangular number. This paper presents some forms of the generalization of factoriangular numbers. One generalization is the \(n^{(m)}\) -factoriangular number which is of the form \((n!)^{m}\) + \(S_m(n)\), where \((n!)^{m}\) is the \(m\)th power of the factorial of \(n\) and \(S_m(n)\) is the sum of the \(m\)-powers of \(n\). This generalized form is explored for the different values of the natural number \(m\). The investigation results to some interesting proofs of theorems related thereto. Two important formulas were generated for \((n)^{m}\) -factoriangular number: \(Ft_{n^{(m)}}\) = \(Ft_{n^{(2k)}}\) = \((n!)^{2k}\) + \(2n+1\over2k+1\)\([n^{2k-2}+P(n^{2k-3})]T_n\) for even \(m=2k\), and \(Ft_{n^{(m)}}\) = \(Ft_{n^{(2k+1)}}\) = \((n!)^{2k+1}\) + \(n(n+1)\over k+1\)\([n^{2k-2}+P(n^{2k-3})]T_n\) for odd \(m=2k+1\)
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This study assessed the economic, environmental and social aspects of ecotourism in Lobo, Batanga... more This study assessed the economic, environmental and social aspects of ecotourism in Lobo, Batangas, Philippines. Lobo is situated in the Verde Island Passage, the “center of the center of marine biodiversity” in the world. Lobo is also home to scenic beaches with spectacular dive spots and fish sanctuaries; mountain ranges with the endangered tree specie, the Philippine teak or Tectona philippinensis; and the 120-year old Malabrigo Lighthouse, which is overlooking Verde Island. The assessment was made by 394 residents of 18 barangays or local communities within the ecotourism areas, who are selected through stratified-proportional random sampling. The study is descriptive in nature and a survey questionnaire was the instrument used in data gathering. Results show that ecotourism in Lobo is economically, viable, environmentally sound and socially acceptable. However, the local government of Lobo and the tourism industry should be constantly cautious in every aspect of ecotourism deve...
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The study aims to present a trend analysis on the Certified Public Accountant (CPA) licensure exa... more The study aims to present a trend analysis on the Certified Public Accountant (CPA) licensure examination performance of an accountancy school in the Philippines and compare this performance with those of other schools. The research method used is mostly quantitative, in which statistical tables and graphs were utilized as tools in the analysis. The data used in the analysis were taken from the website of a government agency in-charge of professional examinations. The schools considered for comparison were selected purposively: three competitor private schools in the city or nearby city, three state universities in the same region and three top performing schools in the country. Results show that the performance of the subject accountancy school in the CPA licensure examination was declining continuously in the past five years. Although it had still considerably good performances annually as evidenced by higher passing percentage compared to national passing percentage, the differen...
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This study analyzes and compares the seven-year performance trends of the top ten customs adminis... more This study analyzes and compares the seven-year performance trends of the top ten customs administration schools in the Customs Broker Licensure Examination (CBLE) in the Philippines. It also determines the correlation between the number of examinees and performance ratings of each school and the statistical differences of the average ratings when the schools are grouped according to location and type of school. The study is a quantitative research that uses statistical graphs and tests in the analysis. Data were gathered from the website of the Professional Regulation Commission. The subject schools are the top ten customs schools based on the average passing rates on CBLE from 2011 to 2017, and provided that the school has an average of at least ten first-time examinees and participated with at least five first-time examinees in each examination. Results show that the performance trends of the ten schools are generally fluctuating, except for the performance of top school in South...
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Indian Journal of Science and Technology
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International Journal of Sciences Basic and Applied Research, Mar 22, 2014
This study determines the awareness of the stakeholders on the vision, mission, goals and objecti... more This study determines the awareness of the stakeholders on the vision, mission, goals and objectives (VMGO) and how these are disseminated; evaluates the stakeholders’ understanding and acceptance of the VMGO; and assesses the perceptions of the stakeholders with regards to VMGO’s clarity and consistency, congruency to activities, practices, projects and operations, and attainability. It uses a descriptive type of research using survey approach, with a stakeholder survey questionnaire to gather data, and employs the SPSS for the statistical analysis. Results show that the stakeholders are generally aware, understand and accept the VMGO. The study also reveals that the stakeholders generally perceive that the VMGO are clearly stated, consistent with each other, congruent to educational practices or activities, and attainable. It also shows that the internal stakeholders, especially the administrators and faculty members, are much aware, understand and accept the VMGO than the external stakeholders. It further shows that respondents from Business Administration and Tourism Management programs are more aware, understand and accept the VMGO than the respondents from Hotel and Restaurant Management, Customs Administration, Accounting Management and Accountancy programs.
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International Journal of Sciences Basic and Applied Research, Jun 3, 2014
This study determines and analyzes the importance of computerized systems to the reservation and ... more This study determines and analyzes the importance of computerized systems to the reservation and front office operations of mostly small to medium-size hotels in the Province of Batangas, Philippines. One hundred reservation and front office managers and employees from 10 hotels participated in the study by assessing the importance of their existing computerized system to their sales and reservation, guest registration, forecasting room status and room availability, through the use of a survey questionnaire developed by the researchers. The gathered data were analyzed with the aid of SPSS. Results show that the computerized system is very important to the pre-identified hotel operations or functions whether during peak or during lean season, although in most cases, the importance is more evident in peak season than in lean season. In general, respondents from the different groups of hotels find the computerized system important to their operations. -----------------------------------------------------------------------* Corresponding author. E-mail address: [email protected].
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International Journal of Sciences Basic and Applied Research, Jan 22, 2015
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International Journal of Sciences Basic and Applied Research, May 5, 2014
This paper assesses the ecotourism in Mount Maculot, Philippines and outlines the directions for ... more This paper assesses the ecotourism in Mount Maculot, Philippines and outlines the directions for sustainable development. The study is descriptive in nature and uses a survey questionnaire for gathering data. A major result of the study is the general agreement of the age-, sex-, and education-disaggregated respondents on all items presented to them for assessment in relation to environmental, economic and socio-cultural aspects of ecotourism. Areas of immediate concern however, include the increasing number of tourists, the conservation of the mountain, the sluggish growth of local businesses, and the revitalization of local ethnic and cultural identity. The paper suggests that the national and local governments, as well as all other stakeholders, consider the following guidelines or directions for sustainable ecotourism in Mount Maculot: adherence to internationally accepted principles on ecotourism; development of long-term plans and policies; environmental education and consciousness and community cooperation for the protection of environment and preservation of local culture; empowerment of the community through involvement in planning and decision making; and designation of Mount Maculot as a reserve or protected area.
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This study assessed the economic, environmental and social aspects of ecotourism in Lobo, Batanga... more This study assessed the economic, environmental and social aspects of ecotourism in Lobo, Batangas, Philippines. Lobo is situated in the Verde Island Passage, the "center of the center of marine biodiversity" in the world. Lobo is also home to scenic beaches with spectacular dive spots and fish sanctuaries; mountain ranges with the endangered tree specie, the Philippine teak or Tectona philippinensis; and the 120-year old Malabrigo Lighthouse, which is overlooking Verde Island. The assessment was made by 394 residents of 18 barangays or local communities within the ecotourism areas, who are selected through stratified-proportional random sampling. The study is descriptive in nature and a survey questionnaire was the instrument used in data gathering. Results show that ecotourism in Lobo is economically, viable, environmentally sound and socially acceptable. However, the local government of Lobo and the tourism industry should be constantly cautious in every aspect of ecoto...
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Papers by Romer C . Castillo