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Kajian ini bertujuan untuk menganalisis tahap, hubungan serta sumbangan antara pemboleh ubah pengetahuan, nilai, kemahiran, sikap terhadap amalan penggunaan air secara lestari dalam kalangan pelajar sekolah menengah di daerah Kinta Utara, Perak. Pendekatan kuantitatif dengan reka bentuk tinjauan serta soal selidik telah digunakan dalam kajian ini. Sampel kajian terdiri daripada 420 orang pelajar Tingkatan 4 dengan menggunakan teknik pensampelan rawak mudah manakala pemilihan sampel sekolah adalah secara rawak berstrata. Analisis deskriptif (min, peratus) dan analisis inferensi (ujian-t, korelasi Pearson, regresi linear) digunakan untuk menjawab setiap persoalan kajian. Dapatan kajian menunjukkan tahap pengetahuan (M=3.97, SP=.48), nilai (M=4.16, SP=.65), sikap (M=3.99, SP=.58) berada pada tahap tinggi manakala amalan penggunaan air (M=3.58 dan SP=.52) berada pada tahap sederhana. Keputusan ujian-t menunjukkan bahawa tidak terdapat perbezaan yang signifikan antara tahap amalan penggunaa.....

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Kajian ini dijalankan bertujuan menguji faktor dominan yang mempengaruhi komitmen tenaga pengajar di Kolej Vokasional di Negeri Selangor dalam pelaksanaan 5S. Amalan 5S melibatkan aktiviti (i) Sisih - Seiri, (ii) Susun - Seiton, (iii) Sapu - Seiso, (iv) Seragam - Seiketsu dan (v) Sentiasa Amal - Shitsuke. Kaedah persampelan berstrata dipilih sebagai teknik persampelan memandangkan populasi kajian tidak seragam dari segi jantina, umur dan bangsa. Sampel kajian ini melibatkan 242 orang tenaga pengajar. Kemudian saiz sampel dibahagikan pula kepada lapan buah Kolej Vokasional berdasarkan jadual penentuan saiz sampel oleh Krejcie dan Morgan (1970). Dua jenis statistik digunakan iaitu statistik deskriptif dan inferensi. Analisis statistik deskriptif menunjukkan Amalan 5S berada pada tahap yang tinggi. Ini bermakna Amalan 5S telah diterapkan dalam diri setiap warga pendidik Kolej Vokasional Negeri Selangor. Analisis Ujian t dan ANOVA satu hala dijalankan untuk melihat sama ada terdapat perbez.....

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The purpose of this study was to investigate the chemical compounds from the calyces of Hibiscus sabdariffa Linn. and their α-glucosidase inhibitory activity. Samples were collected from Balik Pulau, Pulau Pinang. The total of three kilogram of samples were air dried at room temperature, grinded and serially extracted by solid liquid extraction technique using hexane, dichloromethane, methanol, ethanol and water. Compounds were isolated and purified by several chromatographic techniques. Their structures were elucidated with spectroscopic methods including Nuclear Magnetic Resonance (1D-NMR and 2D-NMR), Liquid Chromatography-Mass (LCMS) spectrometry, infrared (IR) spectroscopy, ultraviolet (UV) spectroscopy and compared with data reported in the literature. The α-glucosidase inhibitory activity on the crude extracts and pure compounds was conducted using α -glucosidase inhibitory assay. The finding of this phytochemical study has led to the isolation of seven pure compounds namely s.....

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This study aims to determine the effectiveness of Circle Geometry Board (CG-Board) strategy in learning Circle Geometry towards Form Four students’ performance. This study also examined students’ Van Hiele’s level of Geometric Thought. The pre-test and post-test non-equivalent control group quasi-experimental designed was used. The selection of subjects was conducted by cluster probability sampling involving 52 Form Four students at a school in Hilir Perak district. The subjects were divided equally into control and treatment group. A three-week intervention was carried out. The instruments used are prior knowledge test, a set of pre-test and post-test on Circle Geometry and observation checklist. Descriptive analysis was used to describe students’ performance in the topic while independent t-test was used to determine the differences between the teaching strategies. The result showed that there was an increase in students’ performance in both control and treatment groups. Ba.....

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