Monthly precipitation data during the period of 1970 to 2019 obtained from the Mete-orological, Climatological and Geophysical Agency database were used to analyze regionalized precipitation regimes in Yogyakarta, Indonesia. There were missing values in 52.6% of the data, which were handled by a hybrid random forest approach and bootstrap method (RF-Bs). The present approach addresses large missing values and also reduces the Root Mean Square Error (RMSE) and the Mean Absolute Error (MAE) in the search for the optimum minimal value. Cluster analysis was used to classify stations or grid points into different rainfall regimes. Hierarchical clustering analysis (HCA) of rainfall data reveal the pattern of behavior of the rainfall regime in a specific region by identifying homogeneous clusters. According to the HCA, four distinct and homogenous regions were recognized. Then, the principal component analysis (PCA) technique was used to homog-enize the rainfall series and optimally reduce th.....

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This study aims to determine the compositions of surfactants extracted from urban particulate matter (PM) and motor vehicle exhaust soot. A high volume air sampler (HVAS) has been used to collect PM sample at Kuala Lumpur urban area. Meanwhile, the vehicle exhaust soot was collected randomly from exhaust pipe of various types of diesel and petrol vehicles, using a soft brush during dry days. The concentration of anionic surfactants as Methylene Blue Active Substances (MBAS) was determined by the colorimetric method using UV-Vis Spectrophotometer. The presence of microorganisms as bacteria and fungi was investigated by colony count. In addition, correlation between surfactants and traffic related air pollutants, and meteorological factors were also been investigated. Results revealed that the average concentration of PM was 107.68 ± 7.91 μgm-3 while surfactants in PM was 105 ± 48.8 pmolm-3. Diesel vehicles demonstrated higher surfactant concentration in exhaust soot with av.....

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Waste dyes such as Congo red at certain levels can damage the environment because of toxicity and may cause malfunctioning of the liver, kidneys, and nerves. Therefore, this study aims to analyze optimum pH, concentration, particle size of the adsorbent, and the eluent flow rate on the adsorption of Congo red by Napa soil (NS). The results showed optimum pH of 6, an initial concentration of 20 mg/L, and a particle size of 75 μm and the optimum flow rate of the eluent of 40 drops/minute. Furthermore, the determination of adsorption at the optimum condition of the NS as adsorbent without treatment (fresh) has a higher capacity than the purified Napa soil. The absorption capacity was 0.37 mg/g and 0.25 mg/g, and desorption at the optimum condition (recovery column) showed that the highest percentage is by using ethanol. Besides reducing the concentration of the Congo red dye and determining the absorption capacity of the adsorbent, the other aim of the adsorbent application is for pre-co.....

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Kajian ini dilakukan untuk mengkaji membentuk model penglibatan golongan belia dalam kelestarian alam sekitar khususnya di Daerah Muallim sebagai Bandar Belia atau 1Malaysia Youth City (1MYC). Responden terdiri daripada 400 orang belia daripada dua buah mukim dalam daerah Muallim, Perak iaitu mukim Slim dan Hulu Bernam Timur. Pemilihan responden adalah dengan menggunakan teknik pensampelan rawak mudah. Konstruk penglibatan kelestarian alam sekitar belia yang diukur adalah pengetahuan, nilai, kemahiran dan amalan kelestarian alam sekitar belia. Setiap komponen dipecahkan kepada empat sub konstruk iaitu penjimatan elektrik, penjimatan air, penggunaan produk mesra alam dan juga mod perjalanan. Data dianalisis secara deskriptif untuk mendapatkan kebolehpercayaan nilai Alpha Cronbach dan Analisis Faktor Pengesahan (CFA) digunakan untuk mendapatkan penyelesaian empat faktor dengan menggunakan perisian SPSS 22 dan AMOS 20. Hasil analisis menunjukkan nilai Alpha Cronbach berada pada.....

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The inclusiveness of education in terms of access and quality is one of the mandates of Law Number 20 of 2013 on the National Education System in Indonesia. Furthermore, a School Zoning System policy was born through the Regulation of the Minister of Education and Culture Number 20 of 2019. This research focuses on the school zoning system policy in Lampung Province, Indonesia. The aim is to determine the level of the implementation variable and the actor's role in school zoning system policies. This research type is descriptive qualitative, and the data was obtained from questionnaires, interviews, observation, and data processed using the Analytical Hierarchy Process (AHP) method. The participant in this research is the actors in policy implementation consisting of eight people. The Provincial Education and Culture Office, Principal Assembly, Parliament, Education Council, Teachers Association, Quality Assurance, Academics observers, and Educationalpolicymakers. The result showed tha.....

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Research has shown that reflective practices improve teaching practices, which makes them valuable in the 21st century where the teaching context is complex due to increasing technological innovations and diversity among learners. However, it is hardly practiced among teachers. As a result, the present study aims at highlighting how reflective practices could improve teaching practices in a challenging context. The study adopted a Self-Study qualitative research approach. The data were collected through reflection, observation, and interviews from two collaborating researchers, primary school teachers, and students. Data were analyzed thematically. Findings show that reflective practices improve four main aspects of teaching practices namely assessment, teacher-student role in the classroom, teacher pedagogical competence, and teacher awareness on integrating ICT in the classroom and teacher proficiency in technology. It was revealed that RPs were effective in meeting TPD qualities. Th.....

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Kajian ini dijalankan untuk mengenalpasti tahap kesediaan terhadap penggunaan pembelajaran maya dalam kalangan guru-guru sekolah rendah daerah Kuala Selangor. kajian ini juga bertujuan untuk melihat hubungan antara kesediaan penggunaan pembelajaran maya dengan jantina dan jenis sekolah. Model Unified Theory of Acceptance and Use of Technology (UTAUT) oleh Venkatesh (2003) telah digunakan dalam kajian ini. Pembolehubah-pembolehubah yang dikenalpasti dalam mempengaruhi kesediaan guru terhadap penggunaan Pembelajaran Maya berdasarkan model UTAUT ialah Jangkaan Prestasi, Jangkaan Usaha, Pengaruh Sosial dan Keadaan Kemudahan. Seramai 322 Sampel telah dipilih secara rawak dari kalangan guru-guru sekolah rendah daerah Kuala Selangor iaitu 235 guru SK, 41 guru SJKC dan 46 guru SJKT. Instrumen soal selidik telah digunakan dan dianalisis secara analisis deskriptif dan inferensi iaitu korelasi. Keputusan kajian mendapati guru-guru bersedia untuk menjalankan pembelajaran maya di sekolah (min=3.36).....

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The reason for this scholarly paper is to study the differences between subjective happiness, hope, and achievement motivation of remedial students in terms of the cumulative grade point average (CGPA) and locations. A total number of five hundred remedial students participated in the study. The majority of the respondents were Malays followed by other ethnics. The study was conducted in Ipoh, Tanjung Malim, Shah Alam, and Kuala Lumpur, Malaysia. The researchers used three instruments, namely, the Children’s Hope Scale, Subjective Happiness Scale, and Achievement Goal Questionnaire. The data was analyzed using Statistical Packages for Social Sciences (SPSS), version 23. More specifically, One-Way ANOVA was used to compare the remedial students’ subjective happiness, hope, and achievement motivation in terms of their CGPA results and the locations The results show that there was no statistically significant difference in subjective happiness, hope, achievement motivatio.....

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The study investigated the extent of readiness, challenges met concerning instructional materials, teaching approaches and assessment, the relationship of readiness level and challenges met of the participants, contingency plan of the Modular Distance Learning (MDL)-related problems in the new normal. Frequency counts and percentage distribution were used in profiling while net agreement rating was used to measure readiness levels and challenges met by the participants in instructional materials, teaching approaches, and assessment. Relationships and/or associations between profile variables and teachers’ readiness level, the MDL challenges level were tested using Spearman Correlation and Chi-Square Test of Independence. The participants disagree with five indicators in challenges in instructional materials and four indicators in teaching approaches. Among all the profile variables, the number of students handled, and the number of trainings attended showed a relationship to the chal.....

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The main purpose was to assess preschool teachers’ peer leadership readiness in mobilizing ‘Fly with virtual Peer-Led Fun Innovative Inquiry’ (Fly with v-PeLFII) whilst validating the effectiveness of ‘Fly with virtual Peer-Led Fun Innovative Inquiry Model’ (Fly with v-PeLFII Model). The 3-point likert scale survey instrument which consists of seven constructs were gathered from 35 preschool teachers who attended the ‘Fly with v-PeLFII 21’ virtual workshop. Comparative analysis of Pre-Test and Post-Test of ‘Fly with v-PeLFII Model’ and descriptive statistics were utilized to analyze the data. The increased percentage from Pre-Test to Post-Test within the range of 57.14 percent to 71.43 percent revealed that 35 preschool teachers from Perak are ready to lead their peer teachers in mobilizing fun innovative inquiry in the new horizon. The result also portrayed that the newly developed ‘Fly with v-PeLFII Model’ was an effective online fun innovative inquiry approach .....

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