Plant gene bank collections - sources of variation in health substances

Gene banks and national plant genetic resources programmes have been established to conserve genetic resources of domesticated plants. Variation of the beneficial health substances found in plants is the result of growing conditions (environment) and genes directing the growth (genotype)

PENGEMBANGAN MODUL PEMBELAJARAN MATA DIKLAT MEMBACA GAMBAR TEKNIK SMK NEGERI 2 WONOSARI

Learning module of "Membaca Gambar Teknik" is a teaching material of the students independently of "Membaca Gambar Teknik". The goal of the development learning module of "Membaca Gambar Teknik" is to produce a teaching material that can be used to the students to learn independently. In addition, the purpose of this development was to assess the feasibility of the module as a teaching material independently. Research and development method was used in this research. The sample subjects in this research are students of class X Mechanical Engineering SMK Negeri 2 Wonosari. Data collection technique that used in this research is a questionnaire. The data obtained are qualitative data in the form of comments and quantitative data in the form of scores with a range scale of 1 to 4. Data analysis techniques use the quantitative descriptive analysis techniques, then converted to qualitative data using a Likert scale to determine the feasibility of learning media are made. The results showed that (1) validation of the characteristic aspects of material expert module gets 90%, (2) validation of the display aspects of media expert gets 95.83%, the organization gets 85.71%, the consistency gets 75%, (3) validation of the communication aspects of linguists gets 75%, the truth of the language gets 66.67%, (4) a small group experiment of the characteristic aspects of the module gets 85.94%, the display gets 75.02%, the language gets 79.17%, the benefits of getting media are 91.67%, and (5) a large group experiment of the characteristic aspects of the module gets 71.67%, the display gets 75.625%, the language gets 80%, the benefits of getting media are 85.83%. Keywords : Learning Module of "Membaca Gambar Teknik

Strong Admissibility Revisited (proofs)

Postprin

PERANCANGAN KOMUNIKASI VISUAL ANIMASI UNTUK EDUKASI PROSEDUR TILANG

PERANCANGAN KOMUNIKASI VISUAL ANIMASI UNTUK EDUKASI PROSEDUR TILANG - Prosedur, Tilang, Edukasi, E-Learning

Theory of the Exciton-Phonon Coupling

The effect of electron-phonon interactions on optical absorption spectra requires a special treatment in materials with strong electron-hole interactions. We conceptualize these effects as exciton-phonon coupling. Through phonon absorption and emission, the optically accessible excitons are scattered into dark finite-momentum exciton states. We derive a practical expression for the exciton-phonon self-energy that relates to the temperature dependence of the optical transitions and their broadening. This expression differs qualitatively from previous approximated expressions found in literature

KARAKTERISTIK MORFOLOGI DAN POTENSI PEMANFAATAN ROTAN JERNANG KALIMANTAN (Daemonorops micracantha Becc.) DI KABUPATEN SINTANG DALAM MENDUKUNG UPAYA KONSERVASI BERBASIS MASYARAKAT

Rotan jernang (Daemonorops micracantha Becc.) adalah tumbuhan palem-paleman yang memiliki peran penting sebagai pewarna alami bagi kerajinan anyaman masyarakat Suku Dayak di Kabupaten Sintang. Namun demikian, populasinya semakin berkurang akibat habitat alaminya yaitu hutan primer dataran rendah yang semakin berkurang akibat konversi lahan menjadi area perkebunan dan pemanenan berlebih oleh masyarakat. Penelitian ini bertujuan untuk mengetahui karakteristik morfologi Rotan jernang yang ada di ekosistem hutan rawa gambut dan potensi pemanfaatannya oleh masyarakat lokal setempat di Kawasan ekobudaya Penam Sengkuang Lebuk. Penelitian ini menggunakan metode deskriptif kualitatif dalam mengumpulkan dan analisis data. Data karakteristik morfologi Rotan jernang dikumpulkan menggunakan 3 plot ukuran 10 x 10 m pada Penam Sengkuang Lebuk. Sedangkan data potensi rotan jernang didapatkan melalui wawancara mendalam (In-depth interview) terhadap tokoh masyarakat di Desa Empaka Kebiau Raya, Kabupaten Sintang. Analisis data pada penelitian ini menggunakan analisis deskriptif kualitatif serta data ditampilkan dalam bentuk tabel, gambar, deskripsi dan kutipan wawancara. Hasil penelitian tentang karakteristik morfologi Rotan jernang (Daemonorops micracantha) di Penam Sengkuang Lebuk memiliki kesamaan dengan anggota genus Daemonorops lainnya. Perbedaan utama terdapat pada duri di selubung daun D. micracantha berbentuk bulat yang berbeda dengan yang lainnya. Secara morfometri, ukuran diameter dan panjang pelepah memiliki variasi namun hal tersebut karena adanya perbedaan spesies dan habitat hidup Rotan jernang. Pemanfaatan Rotan jernang di Desa Empaka Kebiau Raya masih hanya digunakan sebagai pewarna alami. Namun potensi ekonomi Rotan jernang yang tinggi dapat menjadi sumber pemanfaatan lain sehingga Rotan jernang dan seluruh ekosistem di Penam Sengkuang Lebuk dapat lestari