Model for Web-based Learning Module in Senior High School General Chemistry

The CoViD-19 pandemic has brought challenges in the learning continuity of school children. New normal learning amidst the current pandemic demands the use of technology and the internet. This study aimed to determine if the web-based learning modules (WLM) have significant effects on the performance of the students in Senior High School (SHS) General Chemistry 1. Before utilizing the WLM, the students got lower actual mean of 23.66 in the pretest which was 6.34 lower than the hypothetical mean. Results further revealed that the students who used WLM got an actual mean of 48.42 in the post-test which was 18.42 higher than the hypothetical mean. Moreover, the students in the WLM acquired a mean gain of 24.75 with a standard deviation of 4.21. The study found a significant mean gain between the pretest and posttest performance of the Grade 11 students in General Chemistry 1 using the WLM. The results affirmed a great improvement in the performance of the students from the pretest to the posttest. The results imply the use of WLM as a great supplemental learning tool that allows learners to go through the material at their own pace exploring the contents of the modules. Thus, the model for the module development can be used in the teaching and learning across the grade level curriculum

Students' COVID-19 experiences: Integrating knowledge, attitude, and practices strategies for teaching science

The junior and senior high school student experiences regarding their knowledge, attitude, and practices during the COVID-19 pandemic need to explore. This qualitative research uses a phenomenological technique with 20 students (10 JHS and 10 SHS) as a sample. Students learned about the illness through multimedia, filtering misinformation, self-driven data gathering, community support, and teacher-facilitated discussions. They also cultivated their attitude toward the disease through personal experiences and reflection on the pandemic, conducting activities such as experiments to test their acquired knowledge, considering community influences, and due to their self-motivation and appreciation of the right attitude during the pandemic. Finally, they executed practices toward COVID-19 with their parents' and peers' influence and support, collaborative team planning, learning from expert demonstrations, and participating in activity-driven action. JHS and SHS students have had a wide range of experiences during the COVID-19 pandemic regarding knowledge acquisition, inculcation of attitude, and practice implementation toward the disease. The student experiences are eye-openers to science educators. With this, there should be improvements in science education curricula that address the current pandemic and other unforeseen health issues.

In Vitro Antibakteri Ekstrak Etanol Puni (Zingiber zerumbet) Asal Pulau Timor

Puni (Zingiber zerumbet) is a wildly grown plant that used by Timorese people to treat ulcerative lesions in Timor Island. This study aims to determine the antibacterial activity of plants extracts and know the content of active compounds on the most active extracts of plants. Extraction of active compounds was carried out using four solvent ie n-hexane, ethyl acetate, ethanol, and aqueous solvent. Antibacterial activity test was done using the diffusion method of the four crude extract and extract with the highest activity was then used to find MIC value. Analyzed the content of the active compounds using LC-MS. It was found that ethanol extract had the highest antibacterial activity compared to other extracts. The MIC value of ethanol extract against S. aureus, B. Subtilis, E. coli, and P. aeruginosa were respectively determined to be 50, 100, 150, 250 mg mL-1. The result of LC-MS analysis showed that the ethanol extract contained zerumbone and gingerglycolipid B. Puni (Zingiber zerumbet) merupakan tanaman yang tumbuh secara liar yang dimanfaatkan oleh penduduk di Pulau Timor dalam mengobati luka borok. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri esktrak tanaman dan mengetahui kandungan senyawa aktif pada ekstrak teraktif tanaman. Ekstraksi senyawa-senyawa aktif tanaman dilakukan menggunakan empat pelarut yakni pelarut n-heksan, etil asetat, etanol, dan air. Metode difusi agar digunakan dalam menguji aktivitas antibakteri ekstrak dan pencarian nilai KHTM untuk ekstrak teraktif. Analisis komponen senyawa aktif dilakukan menggunakan LC-MS. Ekstrak etanol diketahui memiliki kemampuan antibakteri terbaik dibanding ketiga ekstrak lainnya. Nilai KHTM ekstrak etanol terhadap bakteri S. aureus, B. subtilis, E. coli, dan P. aeruginosa berturut-turut sebesar 50, 100, 150, 250 mg mL-1. Hasil analisis LC-MS menunjukkan bahwa ekstrak etanol mengandung senyawa zerumbon dan gingerglikolipid B.&nbsp

Viabilitas Benih Jagung Lokal yang diberi Tepung Daun Tembelekan (Lantana camara Linn) dalam Pencegahan Serangan Sitophilus zeamais Motsch (Coleoptera:Curculionidae) Selama Penyimpanan

Sitophilus zeamais Motsch (Coleoptera: Curculionidae) commonly attack the maize grains during the storage period so as to reduce the seed viability. The tembelekan plant (Lantana camara linn) produce various secondary metabolites which can be used to protect maize grains from the maize weevil attack.. Investigation was carried out to determine the effect of the tembelekan leaf flour (L. camara Linn) in controlling the maize weevil and to study the effect of tembelekan leaves in maintaining viability of maize grains during storage. This study uses a completely randomized design with factorial design. The first factor is the tembelekan flour dosege which consist of four levels i.e T0: without flour, T1: 10% w/w, T2: 15% w/w, T3: 20% w/w. The second factor is exposure time which consist of three levels i.e M0: 1 week, M1: 2 weeks, dan M2: 3 weeks. The results showed that the interaction of the treatment of tembelakan leaf flour and storage period was able to maintain the maize seed viability and vigor parameters i.e maximum germination potential in the amount of 97.33%, seedling growth rate in the amount of 19.06%etmal, seedling vigor index in the amount of 71% and seedling dry weight in the amount of 5.4 grams.Sitophilus zeamais Motsch (Coleoptera:Curculionidae) sering menyerang benih jagung selama periode penyimpanan sehingga dapat menurunkan viabilitas benih. Tembelekan (Lantana camara linn) memproduksi senyawa metabolit sekunder yang dapat berperan melindungi jagung dari gangguan Sitophilus zeamais. Tujuan penelitian ini adalah mencegah serangan hama Sitophilus zeamais dengan tepung daun tembelekan untuk meningkatkan viabilitas benih jagung selama penyimpanan. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial. Faktor pertama adalah takaran tepung tembelekan, yang terdiri dari empat level yakni T0: tanpa tepung, T1: 10% w/w, T2: 15% w/w, T3: 20% w/w. Faktor kedua adalah lama kontak penyimpanan yang terdiri dari 3 level yakni M0: 1 minggu, M1: 2 minggu, dan M2: 3 minggu. Hasil penelitian menunjukkan bahwa interkasi perlakuan tepung daun tembelekan dan periode simpan mampu mempertahankan viabilitas dan vigor benih jagung lokal pada peubah potensi tumbuh maksimum 97,33%, kecepatan tumbuh 19,06%/etmal, indeks vigor 71% dan berat kering kecambah normal 5,4 gram

Faktor-Faktor yang Mempengaruhi Produksi dan Strategi Pengembangan Usahatani Bawang Putih di Kecamatan Miomaffo Barat, Kabupaten Timor Tengah Utara

Penelitian ini bertujuan untuk 1) mendeskripsikan keragaan usahatani bawang putih; 2) menganalisis kandungan unsur metabolid sekunder; 3) menganalisis faktor-faktor yang berpengaruh terhadap produksi usahatani bawang putih; 4) menganalisis pendapatan yang dipeoleh petani dari usahatani bawang putih, dan; 5) mengetahui startegi pengembangan usahatani bawang putih. Metode yang dugunakan adalah survei dan eksperimen laboratorium. Analisa data menggunakan analisis FTIR dan GC-MS, Analisis Cobb Douglass, analisis pendapatan dan Analisis SWOT. Hasilnya keragaan usahatani meliputi pengolahan lahan, persiapan bibit, penanaman, pemeliharaan, panen, pasca panen dan pemasaran. Unsur metabolid sekunder yang terdapat dalam bawang putih adalah adsiri, faktor-faktor yang berpengaruh terhadap produksi antara lain lahan, benih, tenaga kerja, pengalaman, dan pendidikan. Pendapatan yang diperoleh sebesar 534.429.503/musim tanam. Strategi pengembangannya adalah 1) strategi SO : kekuatan yang dimiliki adalah letak lahan yang strategis, kerjasama dalam kelompok, iklim yang mendukung dan pengalaman dan peluangnya dukungan dari PEMDA, permintaan pasar yang selalu ada, eban merupakan sentral/pusat produksi bawang putih di wilayah TTU; 2) strategi WO : meningkatkan modal berusahatani bawang putih, kurang promosi, sistim pemasaran dan penguasaan teknik budidaya yang masih rendah; 3) Strategi ST : kekuatan yang ada adalah letak lahan memiliki sendiri, kerja sama dalam kelompok, iklim yang mendukung dan pengalaman yang telah dimiliki; 4) Strategi WT : meningkatkan modal yang di miliki petani untuk dapat bersaing deengan usahatani bawang putih sejenis lainnya dari luar daerah Eban dan meningkatkan promosi untuk jangkauan pemasaran yang lebih luas lagi

Improving mungbean growth in a semiarid dryland system with agricultural waste biochars and cattle manure

Mungbean (Vigna radiata L.) productivity in dryland decreased recently due to the soil fertility degradation. The objective of this study was to evaluate the effect of biochar types and cattle manure rates on the growth of mungbean in semi-arid dark soil. The factorial completely randomized block design 3 x 5 with four replicates was set to arrange treatments for the field trial. Two biochars (rice husk and sawdust) at 10 t/ha in combination with four rates of cattle manure (1, 3, 5 and 10 t/ha) and control (without biochar and cattle manure) were applied to the soil, incubated for three weeks and then planted with mungbean cv. Fore Belu. The results revealed that additions of biochar and cattle manure increased soil moisture and soil electrical conductivity by 2-4% and 0.15-0.20, respectively; decreased soil temperature and bulk density by 1-2oC and 0.2 g/cm3, respectively; increased plant height, stem diameter, root length, total, shoot and root dry weights by 4 cm, 0.1 cm, 5 cm, 7 g, 0.9 g and 6 g, respectively, compared to the control. The best growth of mungbean was obtained from the additions of sawdust biochar at 10 t/ha and cattle manure at 3 t/ha

F.m.V.TH.AA.11 (Homiliae in Numeros, Cantica Canticorum et Hieremiam Prophetam)

Homiliae in Numeros, Cantica Canticorum et Hieremiam ProphetamTheologySaec. xii ex.GermanyDATE: Secondary use: Saec. xii - xiii, and saec. xiv.German