This pilot study was conducted to test the reliability of the Professional Learning Community questionnaire which involved eight dimensions, namely norms and joint vision, commitment and support of school principal, structural support, mutual understanding and beliefs, collaborative learning, reflective dialogue, collective inquiry and external support. The design of this study is a quantitative study using SPSS to test the reliability of the instrument by using Cronbach Alpha. A total of 100 respondents were involved with this study to answer the questionnaire. This questionnaire has 63 items and uses the Likert scale. Each item has six answer options namely the scale of the Likert scale from scale one which shows the respondents strongly disagree with the item's statement to scale six which shows the respondents strongly agree with the item's statement as stated in the questionnaire. Overall Alpha Cronbach Value for Professional Learning Community instrument with eight dimensions is .....

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The aim of this paper is to conceptualize the significance of location based user generated content in creating superior value to aid travellers in their decision making regarding traveling products and services. A comprehensive review of latest conceptual and empirical literature was grounded to develop the propositions. Millennial generation of Malaysia shall be taken as a social lab for examining the propositions, and to report the empirical findings. The finding of this study provides a basis for developing a model to obtain the significance of location base user generated content on travel decisions. This study could be of practical value for organizations and highlighted the importance of participatory user generated content as well as significant for travellers who want to improve on-travel decisions accuracy. This study suggested a special focus on millennials in Malaysia since they are considered as a potential cluster of markets. This paper makes a significant contribution by.....

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Pelan penggantian merupakan salah satu isu sumber manusia yang penting pada masa kini. Mengikut Rothwell (2010), pelan penggantian sesebuah organisasi melibatkan dua perkara iaitu penyediaan pemimpin masa hadapan dan pembangunan kerjaya individu. Di samping itu pelan penggantian juga didefinisikan sebagai usaha yang berterusan dan sistematik untuk memastikan kesinambungan kepimpinan, perlindungan, pembangunan modal intelektual dan pengetahuan untuk masa depan organisasi serta mendorong pembangunan individu (Hassan & Nasibollah, 2016). Selain itu pelan penggantian juga dilihat sebagai apa-apa usaha yang diambil untuk memastikan prestasi organisasi, bahagian atau jabatan kekal berkesan secara berterusan melalui perlaksanaan pembangunan, penggantian pegawai dan perancangan strategik terhadap jawatan penting dari masa ke semasa (Rothwell, 2005). Menyedari kepentingan pelan penggantian banyak kajian lepas telah dijalankan sebelum ini bagi melihat pelan penggantian menggunakan pelbagai pembo.....

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Climate change and global warming are the primary issues often debated when environmental issues are discussed nowadays. Among the efforts made to raise awareness concerning mitigation and adaptation to climate change is climate literacy acquired from the educational medium. Therefore, this article seeks to identify the level of awareness on climate literacy among preservice teachers in Malaysia. This study involved 500 final-year students from nine faculties at Sultan Idris Education University using the stratified sampling method. A questionnaire instrument was used to get feedback, containing four study variables, namely the knowledge, attitudes, skills, and practices of climate change mitigation and adaptation. The findings showed that the knowledge of and attitudes towards climate change mitigation and adaptation variables were at high levels, while the skills and practices of climate change mitigation and adaptation variables were at moderate levels. Thus, this indicates that stu.....

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In the present work, the feasibility of chitosan-graphene oxide (CS-GO) nanocomposites, namely CS-GO 1% (w/w), CS-GO 2% (w/w) and CS-GO 3% (w/w) as water-solubilising agents for rotenone pesticide was evaluated for the first time. The CS-GO nanocomposites were characterised by using FTIR, SEM, TEM and XRD analyses. The interaction of nanocomposites with rotenone was investigated through adsorption study involving several experimental parameters such as solution pH, initial concentration and contact time. Additionally, the desorption study was carried out using HCl and NaOH as desorption agents. Based on correlation coefficient (R²), the adsorption kinetic data were best described by the pseudo-first order equation while the adsorption equilibrium data were correlated well with the Langmuir isotherm model. The GO nanoparticle aggregates have a spherical shape with size ranged from 1.40 to 34.7 nm. The crystallinity of CS was increased following interaction with GO, whereby the intensit.....

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Absract Here, we have studied the behavior of ZnO based piezoelectric mechanical transducer in the presence of CO2. We have analyzed reduction-oxidation mechanism of CO2 gas on ZnO nanowire surface and studied its behavior for the enhancement piezoelectric output voltage. Rise in piezoelectric potential for various CO2 exposures time intervals from 30min to 3 h has been observed. Chemiresistive behavior of CO2 modified ZnO nanowires, is being explained by the generation of high piezoelectric voltage. ZnO nanowires based nanogenerator has been exposed to 30 min, 60 min, 90 min, 120 min and 3 h in a sealed chamber at 20 ppm, corresponding output piezoelectric voltages of 503.9 mV, 1.15 mV, 1.559 V and 1.795 V have been recorded respectively by using Picoscope 5204. It has also been observed that output voltage value has been saturated after 2 h of CO2 exposure. ZnO nanowire based VING (vertically integrated nanowire generator) structure is being used for the study under minute external f.....

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As part of our continuing search to explore novel natural compounds from Beilschmiedia species, we have carried out a phytochemical study of the leaves and stem bark extracts of B. penangiana. As a result, four alkaloids, (+)-reticuline (1) [8], (+)-boldine (2) [9], (+)-norboldine (3) [10], and lindcarpine (4) [10] together with five other compounds, β-sitosterol (5) [7], β-sitostenone (6) [7], lupeol (7) [6], lupenone (8) [6], and taraxerol (9) [7], were successfully isolated  ..

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This study aims to assess the chemical compositions of the essential oils from three Horsfieldia species namely H. fulva Warb., H. sucosa Warb. and H. superba Warb., which are found in Malaysia. The essential oils were derived from the samples through hydro-distillation which were then characterised by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Based on the findings, the H. fulva, H. sucosa and H. superba essential oils represented 98.2%, 98.7% and 98.5% of the total oils, respectively. The major component of H. fulva oil was identified to be germacrene D (20.8%), H. sucosa oil mainly contained a-cadinol (17.5%), whereas H. superba oil was rich in d-cadinene (18.2%). To the best of our knowledge, this is the first study of the composition of the essential oils from these selected Horsfieldia species. ARTICLE HISTORY  ..

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Polyalthia is one of the largest genera in the Annonaceae family, and has been widely used in folk medicine for the treatment of rheumatic fever, gastrointestinal ulcer, and generalized body pain. The present investigation reports on the extraction by hydrodistillation and the composition of the essential oils of four Polyalthia species (P. sumatrana, P. stenopetalla, P. cauliflora, and P. rumphii) growing in Malaysia. The chemical composition of these essential oils was determined by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The multivariate analysis was determined using principal component analysis (PCA) and hierarchical clustering analysis (HCA) methods. The results revealed that the studied essential oils are made up principally of bicyclogermacrene (18.8%), cis-calamenene (14.6%) and β-elemene (11.9%) for P. sumatrana; α-cadinol (13.0%) and δ-cadinene (10.2%) for P. stenopetalla; δ-elemene (38.1%) and β-cubebene (33.1%) for P. cauliflora; a.....

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The chemical composition of the essential oil from the leaves of Diospyros wallichii (Ebenaceae) growing in Malaysia was investigated for the first time. The essential oil was obtained by hydrodistillation and fully characterized by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). A total of 34 components (95.8%) were successfully identified in the essential oil which were characterized by high proportions of β-eudesmol (28.5%), caryophyllene oxide (9.5%), β-caryophyllene (7.2%), α-eudesmol (6.5%) and germacrene D (6.2%).   ..

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