Objective: This paper aimed to determine the prevalence of sleeping pills use among university students and its associated factors in Malaysia. Methods: This cross-sectional study was conducted in January 2010 among 200 students from Management and Science University (MSU), Shah Alam, Malaysia. The survey was conducted by distributing self-administ

The total energy input and heat transfer factors influence the after-weld microstructural features and hence properties of the joint. Low heat input has been suggested for fusion welding in order to avoid unfavourable grain morphologies in the welds. Also, the weld cooling cycle is crucial in the control of weld microstructures, particularly the ti

Lead (Pb), due to its bioaccumulation ability, has been noted to have detrimental effects on the human body affecting the metabolism, blood and kidneys (Bansal and Goyal, 2005; Bowen, 1996). It is, therefore, imperative that lead be removed from water and wastewater to protect public health and aquatic lives. Multiwall carbon nanotubes (MWCNT) were

The fast growing palm oil industry in Malaysia generates, amongst other wastes, Empty Fruit Bunch (EFB) which consists of cellulosic materials. It is one of the major sources of Greenhouse Gases (GHG). However, the bioconversion of cellulosic materials in EFB, a renewable biomass, to valuable products will be the solution to the disposal problem an

Chemical vapour deposition (CVD) reactor is one of the processes commonly used for carbon nanomaterial (CNM) production. This method is economical and provides high yield of good quality CNM. However, improvement of the CVD reactor system was necessary due to its long time requirement to complete each batch of production. A two-stage CVD was design

Few ideas in the history of philosophy in Islam have been so much debated, attacked, and defended as has the thesis that a necessary connection exists between cause and effect, that cause and effect are so inextricably linked that the existence of one necessitates and implies that of the other, and that if the cause has occurred, the effect cannot

Regional maps and equations for the magnitude and frequency of 1, 7 and 30-day low flows were derived and are presented in this paper. The river gauging stations of neighbouring catchments that produced similar low flow frequency curves were grouped together. As such, the Peninsular Malaysia was divided into seven low flow regions. Regional equatio

It is very important for the hydrologists, water resources engineers and relevant authorities to use the local data and be as accurate as possible in calculating the probable maximum flood (PMF) which, in turn, is strongly related to the extreme rainfall amount commonly known as probable maximum precipitation (PMP). The main objective of designing

The effect of water vapor on high temperature oxidation was studied based on Wagner’s theory of binary alloy oxidation. The oxidation of Fe-Cr alloys was carried out at 1073K in dry and humid conditions. The oxidation was conducted in a closed apparatus at 1073K and the oxygen partial pressure of 1:1 � 10�14 Pa, which was fixed by a Fe/FeO bu

A finite element model is proposed to determine the residual print of sandwich structures with Nomex honeycomb core and metallic skins indented by a spherical indenter and to simulate its behavior when this indented structure is subjected to lateral compressive loading (known as CAI/ Compression after impact). The particularities of this model rely