Ōrigenus Tōn Eis Tas Theias Graphas Exēgētikōn Apanta Ta Ellēnisti Heuriskomena

Petrvs Daniel Hvetivs Græca ex antiquis codicibus manu scriptis primus maxima ex parte in lucem edidit; quæ jam extabant, varias eorum editiones inter se contulit; Latinas interpretationes partim à se, partim ab aliis elaboratas Græcis adjunxit; universa Notis & Observationibus illustravitVorlageform des Erscheinungsvermerks: Rothomagi, Sumptibus Ioannis Berthelini Bibliopolæ, via Iudæorum. M. DC. LXVIII.Text griech. u. lat

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

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

EXPLORING THE EXPERIENCES AND PERSPECTIVES OF STUDENT TEACHERS TEACHING IN MABOLO NATIONAL HIGH SCHOOL, CEBU CITY, PHILIPPINES

Purpose - To improve teacher education and education quality, this study explores the experiences and learning of student teachers during their practice instruction in public high schools in the Philippines. Methodology - Semi-structured, in-depth focus group discussions with student teachers were conducted employing a research design using Colaizzi’s approach. Eight groups of student teachers participated in the focus group discussions (FGDs). Each group comprised five students, with 40 participants in total. Findings - According to the findings, student teachers often struggle with the practical realities of teaching in public school and real-world scenarios instead of controlled training environments. Additionally, teaching-related learning experiences are crucial for adapting to diverse student characteristics and developing teaching styles. A mentoring program is found to be essential, despite issues of communication and confidence. Moreover, having supportive mentors play a significant role in helping student teachers to become effective educators. The study also emphasized the need to enhance the teaching and learning setting through digital tools. Significance - This study provides important insights into the obstacles and potential for improving teacher education quality in the Philippines and expanding the teaching practice program.

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

Pengaruh Konsentrasi dan Frekuensi Plant Growth Promoting Rhizobakteria (PGPR) terhadap Pertumbuhan dan Hasil Padi Merah (Oryza Nivara L.)

This study aims to determine the concentration and frequency of watering the Plant Growht Promoting Rhizobacteria (PGPR) on the growth and yield of red rice (Oryza Nivara L.). This study revealed a factorial Randomized Block Design (RBD) consisting of two (2) factors with three (3) replications, the first factor (K) was the concentration of PGPR biological fertilizer consisting of control (K0), 50 g / 10 L ( K1), 75 g / 10 L (K2) the second factor (F) the frequency of fertilization consisting of 2 fertilization times (F1): planting time (WT) and 21 DAS, 4 fertilization times (F2): planting time (WT) 14 , 21, 42 DAS and 5 times fertilization (F3): planting time (WT) 14, 21, 42, and 56 DAS. Of these two factors, there are 9 treatment combinations, namely K0F1, K0F1, K2FI, K0F2, K1F2, K2F2, K0F3, K1F3, K2F3. The results showed that the PGPR concentration and frequency had an effect on the growth and yield of red rice plants, the growth parameters of rice plants, the concentration of 50 g / 10 L of water with a frequency of 4 times the best plant height (57.48 cm), 0.29 cm stem diameter tillers 23.33 chicks. root fresh weight (10.90 g), root dry weight (6.23 g), shoot fresh weight (87.53 g), shoot dry weight (36.16 g), number of panicles per clump (18.11 clumps), permalai pithy weight (5866.69 tonnes / ha). The combination treatment with a concentration of 50 g / 10 L of water with a frequency of 4 times PGPR watering is highly recommended because it can increase the growth and yield of red rice plants.Penelitian ini bertujuan untuk mengetahui konsentrasi dan frekuensi penyiraman Plant Growht Promoting Rhizobakteria (PGPR) yang tepat terhadap pertumbuhan dan hasil padi merah (Oryza nivara L.). Penelitian ini menguakan Rancangan Acak Kelompok (RAK) faktorial yang terdiri dari dua (2) faktor dengan tiga (3) kali ulangan, faktor pertama (K) ialah Konsentrasi pupuk hayati PGPR yang terdiri dari kontrol (K0), 50 g/10 L (K1), 75 g/10 L (K2) faktor kedua (F) frekuensi pemupukan yang terdiri dari 2 kali pemupukan (F1) : waktu tanam (WT) dan 21 HST, 4 kali pemupukan (F2) : waktu tanam (WT) 14, 21, 42 HST dan 5 kali pemupukann (F3) : waktu tanam (WT) 14, 21, 42, dan 56 HST. Dari kedua faktor tersebut terdapat 9 kombinasi perlakuan yaitu K0F1, K0F1, K2FI, K0F2, K1F2, K2F2, K0F3, K1F3, K2F3. Hasil penelitian menunjukkan kosentrasi dan frekuesi PGPR berpengaruh perumbuhan dan hasil tanaman padi merah, pada parameter pertumbuhan tanaman padi, konsentrasi 50 g/10 L air dengan frekuensi 4 kali penyiraman tinggi tanaman terbaik (57,48 cm), diameter batang 0.29 cm, pengamatan jumlah anakan 23,33 anakan, berat segar akar (10,90 g), berat kering akar (6,23 g), berat segar tajuk (87,53 g), berat kering tajuk (36,16 g), jumlah malai perrumpun (18,11 rumpun), berat bernas permalai (5866,69 ton/ha). Kombinasi perlakuan konsetrasi 50 g/10 L air dengan frekuensi 4 kali penyiraman PGPR sangat di anjurkan karena mampu meningkatkan pertumbuhan dan hasil tanaman padi merah