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