31 research outputs found
Pengembangan Komik Pembelajaran Fisika Berbasis Desain Grafis
This study aim were to determine (1) the characteristics of learning physics-based comic graphic design (2) the attractiveness, usefulness, and the ease of learning physics-based on comic graphic design (3) The effectiveness of learning physics-based on comic graphic design. The development procedures included the analysis of the needs, objectives, subject matter, synopsis, early script, prototype production, evaluation, revision, the final draft, the trial, and the final comic. Results from this study were (1) it is produced the characteristic of comic-based graphic design and contains the Quantities and Units material for junior high school class VII, and it is presented by a picture in full color book format (2) it has the attractiveness score of 3.55 (very interesting),the ease scores of 3.48 (very easy),the expediency score of 3.57 (very useful).(3) Comic of physics learning is effective to be used by students has completed 80.65% of the set value, which is 72.Penelitian ini bertujuan untuk mengetahui; (1) Karakteristik komik pembelajaran fisika berbasis desain grafis; (2) Kemenarikan, kemanfaatan, dan kemudahan komik pembelajaran fisika berbasis desain grafis; (3) Keefektifan komik pembelajaran fisika berbasis desain grafis. Prosedur pengembangan tersebut meliputi analisis kebutuhan, tujuan, pokok materi, sinopsis, naskah awal, produksi prototipe, evaluasi, revisi, naskah akhir, uji coba, komik final. Hasil dari penelitian ini yaitu; (1) menghasilkan komik yang memiliki karakteristik berbasis desain grafis, dan berisi materi Besaran dan Satuan SMP kelas VII SMP, dan disajikan dengan gambar dalam bentuk buku full color; (2) Komik yang dikembangkan memiliki skor kemenarikan 3,55 (sangat menarik), skor kemudahan 3,48 (sangat mudah), skor kemanfaatan 3,57 (sangat bermanfaat); (3) Komik pembelajaran fisika dikatakan efektif untuk digunakan karena 80,65% siswa telah tuntas dari KKM, yaitu 72
Profil dan Potensi Pejantan Sapi Peranakan Ongole Penghasil Calon Galur Baru
Peningkatan produktivitas sapi potong dapat dilakukan melalui pembentukan galur baru yang mempunyai sifat keunggulan spesifik, pengaturan perkawinan dan seleksi untuk menghasilkan sapi bibit dan pejantan unggul, serta pemberian pakan yang nilai nutriennya efisien. Tujuan penelitian ini mendapatkan profil dan potensi spesifik pejantan sapi PO di Lolitsapi sebagai penghasil calon galur baru sapi PO, khususnya terkait dengan kriteria baru, unggul, seragam dan stabil (BUSS). Sebanyak 11 ekor pejantan F3 terbaik di Lolitsapi, diamati profil fenotipe spesifiknya dan potensi produktivitasnya, sejak lahir sampai menjadi pejantan aktif pada pemberian ransum yang kandungan protein kasarnya rendah (8-11%) dan serat kasarnya tinggi (22-26%). Data disajikan secara deskriptif. Hasil penelitian menunjukkan profil pejantan calon penghasil galur baru sapi PO telah memenuhi persyaratan BUSS, potensi produksinya unggul dalam hal berat badan dan tinggi gumba sejak lahir sampai dewasa, potensi reproduksinya unggul pada libido, kuantitas dan kualitas spermanya. Disimpulkan bahwa sapi PO pejantan di Lolitsapi yang telah dipilih dan disiapkan sebagai calon tetua pembentukan galur baru sapi PO, secara silsilah dan kriteria telah memenuhi persyaratan sebagai pejantan untuk menghasilkan F4 galur baru sapi PO
Availability of Forage Under Oil Palm Plantation for Cattle Grazing
Increasing rate of oil palm plantation in Indonesia since 2008-2011 was 6.92%, that increased from 7,363,703 to 7,873,384 ha. Vegetation grown in the area of oil palm plantation is weed for its main crop. There is potential source of oil palm plantation area for livestock industry. Oil palm-cattle integration system is well known and it has been applied in many oil palm plantations, by the use of waste from oil palm plantation, oil palm by-product, the fronds for feed and feces from cattle as organic fertilizer for the plant. Management of oil palm plantation, including plant maintainance, weeding, providing organic and chemical fertilizer is costly. Grazing system under oil palm would minimize cost problem and oil palm production input can be reduced. One of the systems in oil palm-cattle integration that prospective to be developed is grazing by rotation system. Types of plants under oil palm plantation consist of grasses, legumes, other narrow and broad leaves, some are palatable and some are unpalatable or toxic for cattle. Species of vegetation under oil palm vary among the plantation depending on the age of oil palm plant. Introduction of superior forage into oil palm plantation is promising effort to increase the production and quality of feed. Carrying capacity for cattle varies among the oil palm plantation and depends on vegetation under oil palm plantation and age of oil palm. Studies showed that integration oil palm-livestock by grazing system has been proven economically feasible. Key words: Plantation, oil palm, forage, cattle, grazin
Production of carbon molecular sieves from palm shell based activated carbon by pore sizes modification with benzene for methane selective separation
Palm shell based activated carbon prepared by K2CO3 activation is used as precursor in the production of carbon molecular sieve by chemical vapor deposition (CVD) method using benzene as depositing agent. The influences of deposition temperature, time, and flow rate of benzene on pore development of carbon molecular sieve (CMS) and methane (CH4) adsorption capacity were investigated. The parameters that varied are the deposition temperature range of 600 to 1000 °C, time from 5.0 to 60 min, and benzene flow rate from 3.0 to 15 mL/min. The results show that in all cases, increasing the deposition temperature, time, and flow rate of benzene result in a decrease in adsorption capacity of N2, pore volume and pore diameter of CMS. The BET surface area of CMS (approximately 1065 m2/g) and the adsorption capacity of CH4 were at a maximum value at a deposition temperature of 800 °C, time of 20 min and benzene flow rate of 6 mL/min. The product has a good selectivity for separating CH4 from carbon dioxide (CO2), nitrogen (N2), and oxygen (O2)
Misconceptions in mathematical induction for eleventh-grade students – HOTS categorized items
Abstract
This study aims to analyse misconceptions made by students regarding mathematical induction. The technic to collection data uses principles in ethnography such as observation, interview, documentation, and field note. Data were collected through student answer documentation based on 40 multiple choice questions with reasons. There are four misconceptions in solving problems related to mathematics induction subject matter. First is a misconception in interpreting the (n) on proof of P(n). Second is a misconception in generalizations (deduction). The third is a misconception in evidentiary procedures. Fourth is a misconception in manipulating or operating. The results of the findings of the misconceptions are used as material for consideration to improve items. Results construction of instruments to measure higher order thinking skills obtained 40 items that have been corrected based on criteria substance, construction, and language for further validation by experts before being tested in three schools.</jats:p
