The UNESCO Active Learning in Optics and Photonics project is designed for the benefit of teachers of introductory university physics from developing countries. Initial implementation has taken place in two African nations, Ghana and Tunisia. The training curriculum includes student materials to teach topics in geometrical and physical optics in an active way with a high level of student involvement in the learning process. The curriculum makes use of simple, inexpensive materials. A conceptual learning assessment instrument is being developed as part of the project. Follow-up activities are planned. Experiences of the international group of workshop trainers are reported.

Multiple methods of improving plant development have been utilized over the past decades. Despite these improvements, there still exists a need for better planting methods due to the increasing population of a global community. Studies have reported that plasma treatment affects the growth and germination of a variety of plant species, including a multitude of grains which often takes the bulk in the diet of the average human being. This study explores the effect of atmospheric air plasma jet treatment on the seed germination of rice (Oryza sativa L.). The seeds were treated using an atmospheric air plasma jet for 1, 2, and 3 s. The effect of plasma exposure shows a reduction of trichomes on the surface of the seed. This caused a possible increase in wettability which significantly affected the seed germ length but did not affect the seed germination count after the germination period of 72 h.

In this paper, the authors describe an alternative polymerization process of styrene monomer. Styrene, placed in a Plexiglas crucible to minimize splattering, was treated with an argon-atmospheric plasma jet, at a gas flow rate of 12.5 standard cubic feet per hour for 12 min, using a 450-W neon sign transformer power supply. Treated samples were transferred from the crucible to glass substrates and allowed to dry at room temperature. Solvent washing analysis showed an average product retention of 66.59% proving that polymerization occurred. Contact angle measurements of the treated samples showed an increase in hydrophobicity from 78.12° for untreated styrene to 88.14° for plasma-treated styrene. Fourier transform infrared analysis revealed the absence of the C=C, C=C-H and the presence of the C=O and C-O-C functional groups upon treatment. It was concluded that styrene was polymerized successfully through the use of an argon fed atmospheric pressure plasma jet, and that hydrophobic plasma-polymerized polystyrene coatings were successfully deposited onto glass substrates.

Based on physics education goals adopted at the 2005 World Conference on Physics and Sustainable Development, the workshop on "Active learning in optics and photonics (ALOP)" has been described as a model for teacher training and professional development. This paper describes the basic philosophy and elements of the workshop and how it has served physics teachers in schools and introductory college/university in the developing world. Its main philosophy of fostering modern hands-on learning techniques-adapted to local culture, needs and availability of teaching resources-is elaborated. The workshop provides the participants with a conceptual evaluation instrument, drawn from relevant physics education research, giving teachers an important tool to measure student learning.

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