Judul: Kontribusi Pepohonan Terhadap Rumah Tangga pada Sistem Pekarangan (Studi Kasus di Desa Katelan, Kecamatan Tangen, Kabupaten Sragen, Propinsi Jawa Tengah)
Abstrak: Peningkatan jumlah penduduk yang tidak diimbangi dengan penyediaan lapangan pekerjaan telah meninibulkan berbagai masalah di Indonesia. Salah satu masalah yang paling mendesak adalah semakin meluasnya kantong-kantong kemiskinan, baik yang bersifat sektoral maupun Borizontal. Di sektor pertanian, proses pemiskinan petani diakibatkan oleh tiga hal, yaitu : menciutnya luasan usaha tani, kelidakseimbangan nilai tukar produk-produk pertanian. ketidakberdayaan petani dalam mendapatkana akses modal dan teknologi. Padahal di sektor pertanianlah mayoritas rakyat Indonesia bekerja. sehingga otomatis kantong-kantong kemiskinan yang tercipta ada disektor ini.
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Judul: Pekarangan, Ditinjau dari Segi Pemanfaatan Sumberdaya dan Kontribusinya Terhadap Pendapatan Keluarga (Studi Kasus pada Kelurahan Ciganjur, Kecamatan Jagakarsa, Kotamadya Jakarta Selatan)
Abstrak: SUMARYATI. Pekarangan, Ditinjau Dari segi Pemanfaatan Sumberdaya dan Kontribusinya Terhadap Pendapatan Keluarga, Studi Kasus Pada Kelurahan ciganjur, Kecamatan Jagakarsa, Kotamadya Jakarta Selatan (Di bawah bimbingan SRI HARTOYO). Penelitian ini bertujuan: (1) Mengetahui penggunaan sumberdaya dalam bentuk curahan kerja, penggunaan input produksi dan modal uang dalam pemanfaatan lahan pekarangan, sehubungan dengan karakteristik dari pekarangan dan rumah tangga petani itu sendiri, (2) Mengetahui kontribusi pekarangan terhadap pendapatan total rumah tangga petani.
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Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity