Plastic waste is a topic that is always discussed in academic studies, especially regarding for the environment. Plastic waste causes natural damage whether it is biotik or abiotik environment. Lack of understanding of the plastic waste dangers caused tless of the environment concern. This is illustrated by the behavoir of throwing plastic waste not on the rubbish bin. By the socialization of plastic waste education and its utilization, it is expected can improve the intellectual understanding about the risk of plastic waste. This activity was initiated by a group of young people in the Kupang city whose joined to the community of"Saya Pilih Bumi" in Kupang regional by involving speakers from Widya Mandira Catholic University of Kupang City. The method of carrying out the socialization activities is by surveying and requesting permission to the school, then two activities are carried out there are education of plastic waste and plastic waste treatment. The success of these program was indicated by thestudents enthusiasm in the discussion session and the results of processing plastic waste yield some goods like flower pots, pencil cases and other accessories.

Penelitian ini dilakukan dengan tujuan untuk mengetahui profil senyawa-senyawa metabolit sekunder dalam minyak atsiri daun tumbuhan legundi (Vitex trifolia Linn) yang tumbuh di Pulau Timor. Minyak atsiri dari sampel daun tumbuhan legundi diekstraksi menggunakan distilasi uap air dengan menggunakan sampel yang masih segar sedangkan analisis senyawa metabolit sekunder dalam minyak atsiri dilakukan dengan GC-MS. Hasil penelitian yang terdapat dalam sampel minyak atsiri daun legundi asal Pantai

Corrosion inhibition properties of eugenol derivatives have been elucidated by means of density functional theory at B3LYP/ 6-31G(d) level of theory. The quantum chemical parameters including the highest occupied molecular orbital (E HOMO) and lowest unoccupied molecular orbital (E LUMO), gap energy (∆E gab), ionization potential (I), electron affinity (A), the absolute electronegativity (χ), hardness (η), softness (σ), and the fraction of electron transferred (ΔN) are studied for investigating the corrosion inhibition performance of acetyleugenol derivatives. Effect of electron donating and withdrawing groups has been studied on the corrosion inhibition performance of acetyleugenol derivatives. The NH 2 (electron donating substituent) exhibits the highest inhibition efficiency, whereas the NO 2 (electron withdrawing substituent) exhibits the lowest inhibition efficiency. This study would have a significant contribution in designing highly potential eugenol based corrosion inhibitors.