MOULDING POSITIVE CHARACTERS VIA INCULCATING VALUES IN MATHEMATICS TEACHING AND LEARNING

In this paper, I argue that it is pertinent to develop positive characters among all students as they are the future assets of a nation. A review of related literature shows that inculcating values and moulding character has been of great concern in the school mathematics curriculum of many countries. There are various categories of intrinsic values embedded in mathematics education. With careful and mindful integration into teaching and learning of mathematics, it is possible to inculcate positive values and thus produce positive characters of our future generation. Some suggestions on how to inculcate these values into mathematics teaching and learning at various school levels were discussed at the end of this paper. Keyword: mathematics teaching and learning; moulding character; values in mathematics educatio

Data-Driven Multi-step Demand Prediction for Ride-Hailing Services Using Convolutional Neural Network

Ride-hailing services are growing rapidly and becoming one of the most disruptive technologies in the transportation realm. Accurate prediction of ride-hailing trip demand not only enables cities to better understand people's activity patterns, but also helps ride-hailing companies and drivers make informed decisions to reduce deadheading vehicle miles traveled, traffic congestion, and energy consumption. In this study, a convolutional neural network (CNN)-based deep learning model is proposed for multi-step ride-hailing demand prediction using the trip request data in Chengdu, China, offered by DiDi Chuxing. The CNN model is capable of accurately predicting the ride-hailing pick-up demand at each 1-km by 1-km zone in the city of Chengdu for every 10 minutes. Compared with another deep learning model based on long short-term memory, the CNN model is 30% faster for the training and predicting process. The proposed model can also be easily extended to make multi-step predictions, which would benefit the on-demand shared autonomous vehicles applications and fleet operators in terms of supply-demand rebalancing. The prediction error attenuation analysis shows that the accuracy stays acceptable as the model predicts more steps

Critical success factors for a competitive advantage in electronic commerce: empirical study in Paraguayan companies

El comercio electrónico ha sido unas de las áreas de investigación más activa dentro del campo de Sistema de Información en los últimos años. Sería interesante descubrir cuáles son los factores críticos que afecta al comercio electrónico para llegar al éxito, y cuales podrían considerarse como una ventaja competitiva sostenible para las empresas. En esta investigación hemos desarrollado un modelo para el éxito del comercio electrónico basado en la propuesta de los autores DeLone y McLean sobre el actual modelo del éxito de Sistema de Informacion, testado con AMOS (Analysis of Moment Structures), sobre una muestra de 55 empresas paraguayas. En cuanto a la bibliografía utilizada hemos realizado el estudio del meta-analisis con el fin de identificar las revistas científicas más relevantes, con sus respectivos autores del momento y los indicadores que representen importancia para el proyecto. Los resultados han arrojado conclusiones valiosas para la realidad paraguaya, puesto que de los 10 factores críticos de éxito identificados se han encontrado que dos de ellos: “Expertos en tecnología de información (TI) e infraestructura” e “Interoperabilidad del sistema” son considerados como factores que se han convertido en una ventaja competitiva temporal y no ventaja competitiva sostenible a través del tiempo, por razones tales como carencia de los expertos en tecnología de información (TI) especialmente en cuanto al conocimiento del comercio electrónico y la lentitud del avance de los comercios que realizan actividades vía online.Electronic commerce has been one of the most active fields of investigation in Information Technology in the last few years. It would be interesting to find out which critical factors keep electronic commerce from achieving success and which factors would be regarded as a sustainable competitive advantage for companies. In this investigation we have developed a model for the achievement of success in electronic commerce based on what is proposed by DeLone and McLean regarding the current model to achieve success in Information Systems, tested by the AMOS (Analysis of Moment Structures), through a sample of 55 Paraguayan companies. As for the bibliography used, we have performed a meta-analysis study with the purpose of identifying the most relevant journals, with their respective current authors and the indicators that represent the importance to the project. The results have yielded valuable conclusions to the Paraguayan reality as only two of the 10 indentified critical factors for success were detected: “Experts in information technology (IT) and infrastructure” and “Interoperability of the system”. These are regarded as factors which have been converted into a timely competitive advantage but not into a sustainable competitive advantage through time, due to reasons such as a lack of experts in information technology (IT), particularly regarding the knowledge of electronic commerce and the sluggishness of development of electronic commerce which carries out online activities

Implementation of lesson study as an innovative professional development model among Malaysian school teachers

Purpose – This qualitative study explored the implementation of Lesson Study, a kind of teacher-directed and bottom-up approach of the Japanese model of teacher professional development in the Malaysian education context.It seeks to answer the question of how implementation of lesson study as an innovative professional development model among Malaysian school teachers influences teachers’ pedagogical content knowledge, and what school-based factors support or hinder the implementation of lesson study in the Malaysian context. Methodology – The case study method was employed involving two secondary schools in the state of Kedah.Each school set up a lesson study group as a case.Case A had 9 teachers while case B had 8. The participants of both cases engaged themselves in the lesson study process for a period of 12 months. Each lesson study cycle required the participants to collaboratively plan, discuss, teach, observe and reflect on a particular lesson. Due to various constraints, at the end of this study, case A conducted three lesson study cycles while case B conducted only two cycles. Multiple data sources were gathered through in-depth interviews, observations, group discussions and reflections as well as participants’ journal writing.Findings – The analysis of the qualitative data indicated that the lesson study group setting provided an encouraging opportunity and venue for the participants to collaborate, discuss and share their teaching knowledge and experiences. Consequently, the participants expressed that their content knowledge and pedagogical content knowledge were enhanced.They became more reflective and keener in promoting active student participation in their lessons.Significance – This study revealed that the degree of knowledge enhancement was dependent upon each participant’s attitude and commitment towards the teaching profession.However, when provided with sufficient supporting factors such as positive support from the school administrators, committed and dedicated group leaders and strong collegiality among the lesson study team, lesson study could be successfully implemented as an effective and innovative mode of teachers’ professional learning

Infrastructure Development of Railway in Cambodia: A Long Term Strategy

Infrastructure development means for the making of living environment, transport and communications, disaster prevention and national land conservation, agriculture, forestry and fisheries, and energy production and supply. Transport infrastructure development in Cambodia involved with (1) road, (2) railway, (3) port, inland-water way and (4) aviation.All model of transport infrastructure have special different kinds of importance. Railway is different from other base important of railways are transport passengers and traffic freight especially transport for heavy goods in huge capacity and in long distance by safer and faster. Transport in Cambodia for traffic freight export import base from Thailand and other via Sisophon and Shihanoukvill port. Traffic is increasing rapidly during nowadays railway condition in adequate of demand required. This is why Railway is selected as the topic of this paper to prevent monopoly of road transport.This paper, does review about infrastructure development plan for Railway in Cambodia as a long term strategy by review and analysis forecast on the previous performance of Royal Railways of Cambodia (RRC) transport traffic involved with condition of infrastructure development of railway in Cambodia. And also review the plan of development RRC but just only detail a plan of rehabilitation that is immediately needed. Suggest some recommendation at the last part. As Cambodia is a member country of ASEAN and also Mekong sub-region. For make sure that transport networks work effectively with a progress of economic integration, we make clear what is important for infrastructure development of railway in Cambodia from the standpoint of the development plan of Mekong sub-region.This paper is organized by 4 sections. Section 1 review about Infrastructure Development of Railway in Cambodia (IDRC) Historical Background, Follow by Section 2 will review the Current Situation of IDRC and some analysis of transport performance from previous years, Then Section 3 review of the focusing on traffic transport of RRC in the future, Section 4 review Infrastructure Development of Railway in Cambodia Future plans in long term; at last conclusion and recommendation.In section 1 does review history background of RRC from the rail first begun. But why is needed to review? Because of history background is involved infrastructure development of RRC in present time. History background made big gaps constraint and obstacle for socioeconomic development and poverty reduction, also left Cambodia with tragedy and left developed behind. After that remain infrastructure development needs huge fund and long time for restoration, reconstruction, rehabilitation and development into new technology as most of world practice

Infrastructure Development of Railway in Cambodia: A Long Term Strategy

Infrastructure development means for the making of living environment, transport and communications, disaster prevention and national land conservation, agriculture, forestry and fisheries, and energy production and supply. Transport infrastructure development in Cambodia involved with (1) road, (2) railway, (3) port, inland-water way and (4) aviation. All model of transport infrastructure have special different kinds of importance. Railway is different from other base important of railways are transport passengers and traffic freight especially transport for heavy goods in huge capacity and in long distance by safer and faster. Transport in Cambodia for traffic freight export import base from Thailand and other via Sisophon and Shihanoukvill port. Traffic is increasing rapidly during nowadays railway condition in adequate of demand required. This is why Railway is selected as the topic of this paper to prevent monopoly of road transport. This paper, does review about infrastructure development plan for Railway in Cambodia as a long term strategy by review and analysis forecast on the previous performance of Royal Railways of Cambodia (RRC) transport traffic involved with condition of infrastructure development of railway in Cambodia. And also review the plan of development RRC but just only detail a plan of rehabilitation that is immediately needed. Suggest some recommendation at the last part. As Cambodia is a member country of ASEAN and also Mekong sub-region. For make sure that transport networks work effectively with a progress of economic integration, we make clear what is important for infrastructure development of railway in Cambodia from the standpoint of the development plan of Mekong sub-region. This paper is organized by 4 sections. Section 1 review about Infrastructure Development of Railway in Cambodia (IDRC) Historical Background, Follow by Section 2 will review the Current Situation of IDRC and some analysis of transport performance from previous years, Then Section 3 review of the focusing on traffic transport of RRC in the future, Section 4 review Infrastructure Development of Railway in Cambodia Future plans in long term; at last conclusion and recommendation. In section 1 does review history background of RRC from the rail first begun. But why is needed to review? Because of history background is involved infrastructure development of RRC in present time. History background made big gaps constraint and obstacle for socioeconomic development and poverty reduction, also left Cambodia with tragedy and left developed behind. After that remain infrastructure development needs huge fund and long time for restoration, reconstruction, rehabilitation and development into new technology as most of world practice.Asia, Developing countries, Service sector, Networks, Cambodia, Railway, Infrastructure

A Particle-in-Cell Simulation for the Traveling Wave Direct Energy Converter (TWDEC) for Fusion Propulsion

A Particle-in-cell simulation model has been developed to study the physics of the Traveling Wave Direct Energy Converter (TWDEC) applied to the conversion of charged fusion products into electricity. In this model the availability of a beam of collimated fusion products is assumed; the simulation is focused on the conversion of the beam kinetic energy into alternating current (AC) electric power. The model is electrostatic, as the electro-dynamics of the relatively slow ions can be treated in the quasistatic approximation. A two-dimensional, axisymmetric (radial-axial coordinates) geometry is considered. Ion beam particles are injected on one end and travel along the axis through ring-shaped electrodes with externally applied time-varying voltages, thus modulating the beam by forming a sinusoidal pattern in the beam density. Further downstream, the modulated beam passes through another set of ring electrodes, now electrically oating. The modulated beam induces a time alternating potential di erence between adjacent electrodes. Power can be drawn from the electrodes by connecting a resistive load. As energy is dissipated in the load, a corresponding drop in beam energy is measured. The simulation encapsulates the TWDEC process by reproducing the time-dependent transfer of energy and the particle deceleration due to the electric eld phase time variations

Progress Towards the Development of a Traveling Wave Direct Energy Converter for Aneutronic Fusion Propulsion Applications

A coordinated experimental and theory/simulation effort has been carried out to investigate the physics of the Traveling Wave Direct Energy Converter (TWDEC), a scheme that has been proposed in the past for the direct conversion into electricity of the kinetic energy of an ion beam generated from fusion reactions. This effort has been focused in particular on the TWDEC process in the high density beam regime, thus accounting for the ion beam expansion due to its space charge