This study aims to investigate the molecular epidemiology and risk factors of Entamoeba histolytica, Entamoeba dispar, and Entamoeba moshkovskii infection among Orang Asli school children in Perak. Stool samples were collected from 544 school children and the DNA extracted were amplified using nested multiplex PCR. The univariate and multivariate regression analyses were then used to determine the risk factor associated with Entamoeba species infection. The overall prevalence of Entamoeba complex infections was 21.3% (116/544). The total of school children infected with E. moshkovskii was 10.7% (58/544) followed by 9.0% (49/544) of E. dispar and 5.0% (27/544) of E. histolytica. One sample was positive for the mixed E. histolytica and E. dispar infection, five samples were positive for the mixed E. histolytica and E. moshkovskii infection, and 12 samples were positive for the mixed E. dispar and E. moshkovskii infection. As a result of the univariate analysis, there were 19 .....

267 hits

Keperluan komponen kecergasan adalah berbeza bergantung kepada jenis sukan yang dipraktikkan. Tujuan kajian ini dijalankan untuk mengenalpasti komponen kecergasan dominan bagi pemain sepak takraw wanita elit. Kajian ini menggunakan dua kaedah analisis iaitu melalui rakaman video perlawanan dan pengukuran prestasi countermovement jump (CMJ) pemain. Analisis rakaman video dilakukan terhadap perlawanan sepak takraw semasa Sukan SEA 2019 melibatkan empat buah negara. Manakala pengukuran prestasi CMJ pemain melibatkan lapan orang pemain wanita elit SUKMA Perak. Analisis dilakukan untuk mendapatkan jumlah ulangan penggunaan komponen kecergasan yang dilakukan semasa pertandingan manakala pengukuran prestasi CMJ dilakukan untuk mendapatkan profil daya-halaju pemain. Hasil dapatan kajian mendapati komponen kecergasan dominan bagi pemain sepak takraw wanita elit ialah kuasa (M = 56.00 + 4.97) dan masa reaksi (M = 56.00 + 13.44). Dapatan kajian komponen kecergasan dominan bagi posisi .....

702 hits

This study aimed to detect the secondary metabolites and chemical components in the freeze-dried extract of Ottochloa nodosa (Kunth) Dandy. In addition, discovering the extract could have potential as a bacterial inhibitor by determination of the minimum inhibition concentration (MIC) and minimum bactericidal concentration (MBC) carried out in extracts. Determination of antimicrobial potential of freeze-dried extracts was conducted through phytochemical screening, gas chromatography-mass spectrometry (GC-MS) test, agar disc diffusion and broth dilution methods. The study shows this extract has bacterial inhibitors’ potential since it contained phytochemical compounds such as alkaloid, saponin, flavonoid and tannin, while 9 chemical components have been displayed through GC-MS analysis. The disc diffusion method was done at different concentrations, at 25, 50 and 100 mg/ml. The result also shows that the extracts are able to inhibit the gram-positive and gram-negative bacteria. Freeze.....

151 hits

Urbanization is rapidly expanding, and many forests are being cleared. The loss of crucial ecological functions, including dispersal and pollination, in urban settings can have detrimental effects on individual species and the sustainability of entire ecosystems. Nevertheless, how urbanization affects seed dispersal is still largely unexplored. Hence, this study aimed to investigate the association between plant dispersal mode and urbanization intensity in Ipoh City Council, Perak. The percentage of built-up area within a 1km2 area was measured using ArcGIS software to establish the urbanization gradient. To reflect distinct urbanization, a total of 12 sampling plots, with the sized of 1km2 for each plot were designed. 40 subplots were randomly selected in each plot to create a complete sampling site of 0.1 hectare, and any plants discovered in the subplots were identified at the species level. To characterize the mode of dispersion for each plant species recorded, a few reports from l.....

180 hits

Kajian ini bertujuan untuk membangun dan memperoleh kesahan dan kebolehgunaan kit The Isometric Trio iaitu bahan bantu mengajar (BBM) dalam pengajaran dan pemudahcaraan (PdPc) untuk topik Translasi Tingkatan Dua. Reka bentuk kajian ini adalah kajian Reka Bentuk dan Pembangunan (DDR). Ia hanya melibatkan dua fasa pertama sahaja iaitu Fasa Analisis dan Fasa Reka Bentuk dan Pembangunan yang menggunakan model ADDIE. Proses kesahan kit telah dilaksanakan oleh lima orang pakar iaitu empat orang pensyarah Matematik di sebuah universiti awam dan seorang guru Matematik di sekolah menengah untuk menilai kit tersebut. Seterusnya, dengan menggunakan persampelan rawak mudah, seramai 30 orang guru pelatih Matematik dari Universiti Pendidikan Sultan Idris (UPSI) telah dipilih untuk menentukan kebolehgunaan kit dengan melengkapkan soal selidik kebolehgunaan kit. Maklum balas daripada pakar telah dianalisis dengan menggunakan Indeks Kesahan Kandungan (IKK), manakala kebolehgunaan kit telah ditentukan m.....

247 hits

Zingiber zerumbet (L.) Roscoe ex Sm. is a herbaceous medicinal plant from the Zingiberaceae family. Previous studies have mainly focused on the essential oils of the plant with little attention to its secondary metabolites. LCMS-Orbitrap is used to analyze ethanolic extract of Z. zerumbet rhizome. Dereplication is a technique applied to identify chemical constituents based on their accurate mass and comparison with custom databases, Dictionary of Natural Products (DNP), and literature using an operating system named MZmine 2.53. In this study, we have identified chemical constituents related to several classes, including flavonoids, terpenoids, diarylheptanoids, terpenes, phenolic compounds, and fatty acids. Our results provide useful information for further isolation and identification of other unknown compounds and mass spectroscopy-based metabolite profiling of Zingiber species...

156 hits

A drastic increase in healthcare demand has come from the explosive growth of the older population. The elderly are, on average, more vulnerable to health problems than other age groups. Unpredictable events, such as sudden falls, can be avoided with proper monitoring. Activity recognition can help people avoid potentially dangerous behaviours by aiding in the detection of unexpected events. Most of the existing approaches require complex sensors and environment setup, involve data filtering and noise removal steps, and most often the chosen learning models need to be tuned and carefully designed for optimal performance. This study emphasizes light implementation, fast training time, easy experimental setup, and minimal parameter tuning. Human activities are captured using smartphone sensors in this study. Students and senior residents from a local home care facility are among the volunteers for this study. The necessary data sets are obtained from the accelerometer sensor on the smart.....

187 hits

The chemistry of Piper species has been widely investigated and phytochemical investigations conducted in all parts of the world have led to the isolation of a number of physiologically active compounds. Thus, this study was carried out to investigate the phytochemicals from Piper magnibaccum from Malaysia. Fractionation and purification of the leaves led to the isolation and identification of linoleic acid (1), 24S-ethylcholesta-5,22,25-trien-3β-ol (2), oleic acid (3), β-sitosterol (4), cepharadione A (5), piperumbellactam A (6), and stigmast-3,6-dione (7). The structures of these compounds were obtained by analysis of their spectroscopic data, as well as the comparison with that of reported data..

212 hits

This study aims to investigate the level of green chemistry knowledge, awareness, and practices among university students. This study also aims to analyze the relationship between green chemistry knowledge and awareness, green chemistry knowledge and practices, and also green chemistry awareness and green chemistry practices. This study employed survey as research design, and data was collected by distributing the questionnaires to 392 university students in Kuala Lumpur and Tanjung Malim by using the 44-questions questionnaire, which consists of 16 multiple-choice questions for green chemistry knowledge construct, and 14 questions which uses 5-point Likert scale questions for green chemistry awareness and practices respectively. Data were analysed descriptively to investigate the level of green chemistry knowledge, awareness and practices. This study has successfully revealed that the level of green chemistry knowledge and practices among university students is high, while the level o.....

223 hits

The conjoint method, which is based on fuzzy sets of numbers, is widely used to describe linguistic values for human preference in an uncertain environment. However, the fuzzy sets used to describe the membership function of linguistic value do not realistically represent the physical world, so the conjoint method can fill the gap and produce more meaningful results. The fuzzy numbers conjoint method is used in this paper to analyze the achievement goals of undergraduates in the learning of calculus. One hundred and seven selected Bachelor of Science (Hons) Mathematics and Bachelor of Science (Hons) Actuarial Science students from one public university in Klang Valley, Selangor, participated in this study. The data for this study, which was distributed via Google form, was based on a previous study's Achievement Goals Questionnaire. The fuzzy number conjoint method with similarity measure based on geometric distance, ambiguity, value, area, left and right height were used to c.....

210 hits