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UPSI Digital Repository (UDRep)
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| Latest addition to the database : |
| 7881 | 2019 Article | Surfactant-assisted imidacloprid intercalation of layered zinc hydroxide nitrate:synthesis, characterisation and controlled resease formulation Norhayati Hashim A neutrally charged insecticide, imidacloprid (IC), has been intercalated into zinc hydroxide nitrate (ZHN) with the assistance of sodium dodecylsulphate (SDS). The presence of SDS assists the intercalation of IC by forming a hydrophobic region in the interlayer gallery of ZHN. The intercalated compound, ZHN–SDS–IC, was characterised using powder X-ray difraction (PXRD), thermogravimetric analysis, Fourier transform infrared spectroscopy, elemental analysis, feld emission scanning electron microscopy, and gas sorption analysis. The PXRD studies demonstrated intercalation peaks at lower 2θ, which confrmed the intercalation of IC and SDS in the interlayer gallery of ZHN. The release and kinetic studies of ZHN–SDS–IC reveals that the IC were successfully released in controlled manner (with release time up to 1478 min), and were governed by pseudo second order kinetic model. The ZHN–SDS–IC synthesised is hopefully benefcial in overcoming the consequences of excessive usage of ..... 645 hits |
| 7882 | 2019 Article | Release behavior of dichlorprop from zn/al-ldh-dichlorprop nanocomposite into chloride, carbonate and phosphate solutions Norhayati Hashim A release study of dichlorprop phenoxyherbicides from the interlayer of a Zn/Allayered double hydroxide-dichlorprop nanocomposite was performed with various concentrations of sodium chloride, sodium carbonate and sodium phosphate and a mixture of sodium chloride, sodium carbonate and sodium phosphate in aqueous solution. The release study of dichlorprop showed that release is dependent on the concentration of the aqueous solution. The accumulated release percentage of dichlorprop phenoxyherbicides into the solution was found to be higher in solutions containing carbonate, phosphate, and a mixture of carbonate or phosphate anions. Confirmation of the releaseprocess was confirmed by the PXRD pattern of the powder recovered from highly concentrated solutions of sodium chloride, sodium carbonate, and sodium phosphate with basal spacing of 7.8 Å, 7.6 Å and 7.4 Å, is due to chloride, carbonate, and phosphate intercalation, respectively. The kinetic study revealed that dichlorprop release ..... 557 hits |
| 7883 | 2019 Article | Controlled release formulation of zinc hydroxide nitrate intercalated with sodium dodecylsulphate and bispyribac anions: a novel herbicide nanocomposite for paddy cultivation Norhayati Hashim Bispyribac (BP) anions have been successfully intercalated in the interlayer region of zinc hydroxide nitrate (ZHN) in the presence of sodium dodecylsulphate (SDS) surfactant. The physicochemical properties of the intercalation compound ZHN–SDS–BP have been characterised herein with different instrumental techniques. The intercalation of BP and SDS is clearly reflected in the PXRD analysis, based on the appearance of symmetrical, sharp and intense intercalation peaks at lower 2h with a basal spacing of 28.2–28.6 A? . The thermal studies show that the ZHN–SDS– BP nanocomposite has better thermal stability than the pristine BP. The intercalation of BP leads to significant changes in the surface area, porosity, and morphology. Nitrogen adsorption–desorption isotherms reveal that both ZHN–SDS and ZHN–SDS–BP are of Type IV. The release and kinetic studies were also carried out on the ZHN–SDS–BP, in aqueous solution of Na3PO4, Na2-SO4 and NaCl as the release media. The ..... 1022 hits |
| 7884 | 2019 Article | Knowledge management process as a predictor on the organizational performances in Dubai government departments Nek Kamal Bin Yeop Yunus In recent years, the concept of Knowledge Management has expanded widely in government and private sectors. The last five years have witnessed intensive discussions on Knowledge Management and its importance. The aim of this study is to examine the relationship between Knowledge Management and its aspects and its impact on the performance of the governmental institutions in the Emirate of Dubai from the point of view of the managers of these institutions. This study attempts to use the analytical descriptive method to address the subject of the research. In this light, the analytical framework drawn integrates these approaches and can be applied in empirical studies. The study uses the questionnaire in data collection, which is valid and reliable according to the Cronbach’s Alpha value. A Multiple linear regression analysis has been used to predict the OP based on KG, KSR and KST. The findings showed that KG, KSR and KST were the key predictors of OP as these explained 49.6 perc..... 717 hits |
| 7885 | 2019 Article | Preparation of fibrillated cellulose from kenaf bast fiber using high speed homogenizer without pressure Rosazley Ramly The aim of the study is to characterize the fibrillated cellulose (FC), which has been extracted from kenaf bast fiber using high speed homogenizer (HSH). The FC was prepared by applying 10,000, 15,000 and 20,000 rpm of homogenization process for 10, 15 and 20 mins. Morphological observation via Field Emission Scanning Electron Microscope (FESEM) was carried out in order to observe the sur-face morphology of FC while Fourier Transform Infrared (FTIR) spectroscopy was performed to determine the changing of functional groups. Thermogravimetric Analysis (TGA) was done for thermal decomposition of FC. Results showed that the diameter of the FC from kenaf bast was determined below 100 nm. The Fourier Transform Infrared (FTIR) spectroscopy showed that lignin and hemicellulose were almost completely removed during the bleaching process at peak 1,737 cm-1. In addition, thermogravimetric analysis (TGA) displayed 272°C as the highest temperature for thermal stability of FC. In conclusion, by co..... 1084 hits |
| 7886 | 2019 Article | Social impacts in the novel Franklin Thambi Jose Selistus Darling 1247 hits |
| 7887 | 2019 Article | Using interactive media to support reading skills among underachieving children Noor Aini Ahmad This article presents a literature review on improving reading skills, and recommendations for reading skills that prepare children for the world of tomorrow. Remediation should begin as soon as a child is diagnosed as having problems with reading. As the demand for digital know-how has dramatically increased in recent years, interactive media has become a basic tool in today’s classroom. Children with weak working memory, and with difficulties in the rapid processing of information, need to be assisted to use digital literacy skills. Underachievers usually show a gap between their functional knowledge and performance potential. In order to prevent this gap from widening, underachievers are advised to work at their own functional level to overcome their deficits. Recommendations are made which are related to interventions that use interactive media as instructional material, and which may underscore an ability or desire to perform independently and more effectively. Three canvases fo..... 1763 hits |
| 7888 | 2019 Article | Kesedaran sensitiviti moral melalaui aktiviti analisis filem pendek: satu kajian tindakan di kelas Pendidikan Moral Nadarajan Thambu Sensitiviti moral merupakan unsur yang menjadi tunjang kepada sesuatu perlakuan moral. Sensitiviti moral melibatkan proses mentafsir perasaan orang lain, kemahiran empati dan patuh kepada prinsip moral. Justeru artikel ini membincangkan hasil kajian tentang potensi aktiviti menonton dan analisis filem pendek sebagai kaedah pengajaran dalam mencungkil unsur sensitiviti moral dalam kalangan murid sekolah menengah. Seramai 18 orang murid perempuan dan lelaki (tiga kumpulan berfokus) dari kelas Pendidikan Moral tingkatan empat digunakan untuk tujuan pengumpulan data. Teknik pensampelan bertujuan digunakan untuk memilih peserta kajian. Kajian ini menggunakan pendekatan kualitatif dengan reka bentuk kajian tindakan yang menggunakan kaedah temu bual, pemerhatian dan penulisan jurnal murid. Dapatan kajian menunjukkan aktiviti menonton dan analisis filem pendek dalam pengajaran dan pembelajaran Pendidikan Moral mampu mencungkil sensitiviti moral dalam kalangan murid tingkatan empat. Mempunyai s..... 2075 hits |
| 7889 | 2019 Article | Kesahan dan kebolehpercayaan instrumen pentaksiran ekstensif modifikasi permainan kategori memadang dalam mata pelajaran Pendidikan Jasmani tahun 5 Azali Rahmat Secara umumnya, kajian ini bertujuan untuk menentukan kesahan dan kebolehpercayaan instrumen Pentaksiran Ekstensif Modifikasi Permainan Kategori Memadang Dalam Mata Pelajaran Pendidikan Jasmani Tahun 5. Kajian ini menggunakan instrumen yang holistik dan realistik bagi menilai tahap pencapaian murid bagi permainan kategori memadang. Pentaksiran Ekstensif merangkumi penilaian domain psikomotor, kognitif, afektif dan juga elemen penaakulan (memukul dan memadang). Penilaian domain psikomotor, afektif dan elemen penaakulan dilaksanakan secara pemerhatian guru, dan bagi domain kognitif pula, penilaian kendiri dilaksanakan oleh murid. Lima sumber utama dijadikan sebagai rujukan dan panduan supaya instrumen pentaksiran yang dibina bersesuaian dengan kehendak dan keperluan kurikulum Pendidikan Jasmani. Instrumen kajian ini dibina berdasarkan Buku Teks Pendidikan Jasmani Tahun 5, Buku Panduan Pengajaran Pendidikan Jasmani Tahun 5, Dokumen Standard Kurikulum dan Pentaksiran Pendidikan Jasmani Tah..... 1792 hits |
| 7890 | 2019 Thesis | The effects of task-based language teaching and audio-lingual teaching approach in Mandarin oral skills learning Chua, Hui Wen This study investigates the effects of Task-based Language Teaching (TBLT) and
Audio-Lingual Teaching Approach (ALTA) on oral skills learning and learning
motivation among non-native Mandarin in Teaching Mandarin as a Third Language (TMTL). TBLT
applied Adaptation of Willis’s TBL Framework, while ALTA applied Sar?çoban’s dialogue
memorisation. Quasi experimental design was used in the study with convenience sampling of 21
students (TBLT) and 22 students (ALTA). Simulated conversation oral test and Motivational
Strategies for Learning Questionnaire (MSLQ) were employed. Independent sample t-test was
used to examine if there are any differences between the two groups, and paired sample t-test
was used to identify the differences between Test 1 and Test 2 for both groups, in the
aspect of students’ performances. The findings showed..... 2067 hits |
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