Judul: Manfaat Ekonomi dan Strategi Pengelolaan Bank Sampah Berkelanjutan (Studi Kasus: Bank Sampah Makara Kelurahan Kukusan, Kecamatan Beji, Kota Depok)
Abstrak: Kota Depok mengalami peningkatan pertumbuhan penduduk setiap tahun, diikuti dengan peningkatan konsumsi masyarakatnya. Hal ini menjadi salah satu pemicu meningkatnya jumlah timbulan sampah. Kota Depok memiliki program unggulan terkait penanganan persoalan sampah, yaitu Zero Waste City. Bank sampah merupakan alternatif dalam pengelolaan sampah tingkat rumah tangga melalui prinsip Reduce, Reuse, dan Recycle (3R). Keberadaan bank sampah saat ini dibutuhkan untuk mengurangi tumpukan sampah di Tempat Pemrosesan Akhir (TPA). Bank Sampah Makara merupakan salah satu bank sampah di Kelurahan Kukusan, Kecamatan Beji, Kota Depok, terdapat kekhawatiran akan keberlanjutan bank sampah ini. Untuk itu, penelitian ini bertujuan 1) mengidentifikasi pola mekanisme pengelolaan Bank Sampah Makara, 2) menganalisis persepsi masyarakat terhadap bank sampah berdasarkan aspek ekonomi, sosial, dan lingkungan, 3) menghitung nilai manfaat ekonomi Bank Sampah Makara, 4) menganalisis strategi pengelolaan Bank Sampah Makara yang berkelanjutan. Metode yang digunakan adalah analisis deskriptif kualitatif, skala likert, analisis pendapatan, dan Analytical Hierarchy Process. Hasil penelitian menunjukkan bahwa mekanisme pengelolaan Bank Sampah Makara masih tergolong sederhana. Kegiatan bank sampah memberikan dampak positif secara ekonomi, sosial, dan lingkungan. Manfaat ekonomi tahun 2019 sebesar Rp2.325.759,00 dan mengalami penurunan pada tahun 2020 menjadi Rp1.026.962,00. Strategi yang dapat dilakukan yaitu melalui pendekatan organisasi bank sampah dengan peningkatan pemahaman pengelolaan sampah., Depok city has increased population growth every year, followed by an increase in the consumption of its people. This is one of the triggers of the increasing amount of waste. Depok city has a superior program related to handling waste problems, namely Zero Waste City. Waste bank is an alternative in household waste management through the principles of Reduce, Reuse, and Recycle (3R). The current existence of waste banks is needed to reduce the pile of waste in the Final Processing Site (TPA). Makara Waste Bank is one of the waste banks in Kukusan Sub-district, Beji District, Depok City, there are concerns about the sustainability of this waste bank. Therefore, this research aims to 1) identify the pattern of management mechanism of Makara Waste Bank, 2) analyze public perception of waste bank based on economic, social, and environmental aspects, 3) calculate the economic benefits of Makara Waste Bank, 4) analyze the sustainable management strategy of Makara Waste Bank. The methods used are qualitative descriptive analysis, likert scale, income analysis, and Analytical Hierarchy Process. The results of this research are that the management mechanism of Makara Waste Bank is still relatively simple. Waste bank activities have a positive impact of economic, social, and environmental aspects. Economic benefit in 2019 amounted to Rp2.325.759,00 and decreased in 2020 to Rp1.026.962,00. The strategy can achieve through the approach of waste bank organization with an improved understanding of waste management.
Keyword: AHP, income analysis, likert scale, perception, waste management

Judul: Economic Benefits Analysis and Key Sustainability Factors of Waste Bank (Study Case: Main Waste Bank Panca Daya, Kuranji District, Padang City.)
Abstrak: Pertumbuhan jumlah penduduk meningkatkan produktivitas masyarakat yang berdampak terhadap peningkatan sampah yang dihasilkan. Sampah merupakan salah satu permasalahan utama yang dihadapi Kota Padang dan bank sampah dapat menjadi solusi. Saat ini bank sampah terbesar yang aktif di Kota Padang adalah Bank Sampah Panca Daya. Berdasarkan hal tersebut, tujuan dari penelitian ini adalah (1) mengidentifikasi mekanisme pengelolaan Bank Sampah Panca Daya, (2) menganalisis persepsi masyarakat terhadap keberadaan Bank Sampah Panca Daya, (3) menghitung nilai manfaat ekonomi pengelolaan sampah yang dihasilkan Bank Sampah Panca Daya, (4) menganalisis faktor-faktor kunci yang memengaruhi keberlanjutan Bank Sampah Panca Daya. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif, analisis pendapatan, skala likert, dan analisis MICMAC. Hasil penelitian menunjukkan bahwa mekanisme pengelolaan Bank Sampah Panca Daya terdiri dari penyortiran dan pengumpulan sampah, penyetoran, penimbangan, pencatatan sampah. Nasabah maupun non- nasabah memiliki persepsi yang baik terhadap pengelolaan Bank Sampah Panca Daya baik itu dari aspek ekonomi, sosial, dan lingkungan. Manfaat ekonomi dari pengelolaan bank sampah tahun 2022 sejumlah Rp97.956.492,00 dan mengalami peningkatan tahun 2023 menjadi Rp162.743.454,00. Analisis faktor kunci keberlanjutan Bank Sampah Panca Daya menunjukkan bahwa variabel regulasi, kelembagaan, dan kerjasama/kemitraan dengan pihak lain memiliki pengaruh yang kuat terhadap keberlanjutan bank sampah., Population growth increases community productivity, which in turn leads to an increase in waste production. Waste is one of the main problems faced by the city of Padang, and waste banks can be a solution. Currently, the largest and active waste bank in Padang is Panca Daya Waste Bank. Based on this, the objectives of this study are (1) to identify the management mechanisms of Panca Daya Waste Bank, (2) to analyze the community's perception of the existence of Panca Daya Waste Bank, (3) to calculate the economic benefits value of waste management produced by Panca Daya Waste Bank, (4) to analyze the key factors affecting the sustainability of Panca Daya Waste Bank. The methods used in this study are descriptive analysis, income analysis, Likert scale, and MICMAC analysis. The results show that the management mechanism of Panca Daya Waste Bank consists of sorting and collecting waste, depositing, weighing, and waste logging. Customers and Non-customers have a good perception of the management of Panca Daya Waste Bank in terms of economic, social, and environmental aspects. The economic benefits of waste bank management in 2022 amounted to IDR 97,956,492.00 and increased in 2023 to IDR 162,743,454.00. The analysis of key sustainability factors of Panca Daya Waste Bank shows that regulatory variables, institutional factors, and cooperation/partnerships with other parties have a strong influence on the sustainability of the waste bank.
Keyword: Likert scale, income analysis, MICMAC, waste management, community perception

Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum