Search

Photo-stimulated luminescence (PSL) technique was used in this study to detect gamma irradiation treatment of five types of flours (corn, rice, tapioca, wheat and glutinous rice) at four different doses 0, 0.2, .05 and 1kGy. The signal level was compared with two threshold values (700 and 5000). With the exception of glutinous rice, all irradiated samples produced a strong signal above the upper threshold (5000 counts/60s). All control samples produced negative result with the signals below the lower threshold (700 counts/60s) suggesting that the samples have not been irradiated. Irradiated glutinous rice samples produced intermediate signals (700 - 5000 counts/60s) which were subsequently confirmed using calibrated PSL. The PSL signals remained stable after 90 days of storage. The findings of this study will be useful to facilitate control of food irradiation application in Malaysia. [ABSTRACT FROM AUTHOR]

Despite the advances in technology and increase of internet usage which provide numerous benefits to mankind, little is known about the problems and related issues such as the ethical issues and behavior of using the internet. Hence, it is crucial for researchers to study on the ethical issues relating to the use of information and communication technologies (ICT). This paper extends prior researches by investigating and exploring the use of ICT and ethical issues in Malaysian primary school. This study relates with four ICT issues proposed by Mason: privacy, accuracy, property and accessibility (known as the PAPA model). In this study, the quantitative methodology has been adopted by distributing questionnaires among students. The results indicated that the students are able to comprehend the ethical issues in the use of ICT. [ABSTRACT FROM PUBLISHER]