Pandemi Covid-19 yang telah terjadi beberapa bulan terakhir berdampak terhadap pembelajaran siswa yang awalnya diselenggaran secara luring menjadi daring. Sebagai langkah antisipasi, pemerintah telah bekerja sama dengan berbagai pengelelola situs belajar daring agar memberikan akses gratis kepada siswa. Akan tetapi kompensasi akses pada sumber-sumber belajar online ini masih belum dimanfaatkan secara maksimal . Oleh karena itu, pengabdian masyarakat ini dilakukan untuk mensosialisasikan pemanfaatan media pembelajaran online untuk meningkatkan pembelajaran mandiri di masa new normal. Pengabdian ini dilakukan kepada anak-anak di Panti Asuhan Yayasan Talenta Delpita Medan. Adapun metode pelaksanaan pengabdian kepada masyarakat ini dilakukan dalam tiga tahapan, yaitu 1) persiapan; 2) kegiatan sosialisasi; dan 3) evaluasi. Berdasarkan hasil pengamatan dan evaluasi, pengabdian kepada masyarakt ini mampu memberikan pengalaman belajar yang berbeda kepada anak. Pemanfaatan media belajar online juga meningkatkan antusiasme dan motivasi belajar anak. Selain itu, motivasi anak untuk belajar secara mandiri juga meningkat dengan memanfaatkan sumber-sumber belajar yang tersedia di internet.
The semi-interpenetrating polymer network hydrogel possesses self-healing ability due to the dynamic ionic interactions between polyacrylic acid and Fe3+. The antibacterial properties are due to embedded silver chloride nanoparticles well-distributed in the hydrogel.
Research on paper made from coconut and tofu waste has been carried out using the alkalization method of separation technique, with the optimum composition as follows: NaOH concentration used is 3.0% and cooking temperature is 100 0C and the time required is 90 minutes. The results of the catheterization test of paper made from coconut dregs and tofu have a water content of 3.2%; pH 6.9, pulp content 65.75%; cellulose content 80.22%; lignin content 18.27%. The results of the FT-IR spectrum analysis of coconut pulp and tofu pulp are suitable for use as raw materials for making paper because they contain cellulose fibers. This is indicated by the appearance of the O-H hydroxyl group which is observed at a wavenumber of 3312 cm-1. Based on the SEM results, the surface morphology of the coconut pulp and tofu combination paper shows that the surface structure is the denser the fiber bonds, the smaller the fiber diameter, the better the mechanical properties. The results of the research conclusions explain that, paper made from coconut and tofu waste has met the requirements set by SNI 14-0444-1989. Keywords: Paper, Cellulose, Coconut pulp, Tofu pulp, Lignin
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