Judul: Analisis finansial investasi peremajaan kebun teh
Abstrak: Sebagai penghasil devisa non minyak dan gas bu~ni, teh menempati urutan ketiga setelah karet dan kopi dalam kelompok kornoditas perkebunan. Sedanglcan kelompok konioditas perkebunan sendiri masih tetap memegang peranan penting dalam daftar sumber devisa negara. Masalah berat yang dihadapi oleh pengusaha perkebunan pada umurnnya dan khususnya perkebunan teh adalah gejala semakin menyempitnya marjin keuntungan. Hal ini disebabkan oleh meningkatnya biaya produksi dan harga yang cenderung terus menurun. Salah satu upaya untuk mengatasi ha1 ini adalah dengan meningkatkan produktivitas kebun. Peremajaan kebun merupakan salah satu usaha untuk menigkatkan produktivitas kebun.
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Judul: Analisis finansial pada proyek peremajaan teh  : (Studi kasus di Perkebunan Ciater, Kecamatan Jalancagak, Kabupaten Subang, Jawa Barat)
Abstrak: Tujuan dari Praktek Lapangan ini adalah untuk mengkaji kelayakan usaha penanaman investasi yang dilakukan PT Perkebunan XIII di Ciater pada proyek peremajaan teh. Dari hasil parktek lapangan dengan mengadakan analisis finansial dengan jangka waktu 25 tahun, proyek peremajaan teh layak dilaksanakan dan telah menikmati suatu keuntungan. Hal ini dapat dilihat dari kriteria penilaian yang digunakan yaitu NPV lebih besar dari nol, Net B/C ratio lebih besar dari satu dan IRR lebih besar dari tingkat bungan potongan yang digunakan. Dilihat dari MPI, memakan waktu yang relatif lama seperti umumnya komoditas pertanian. Analisis sensitivitas dilakukan untuk kenaikan biaya sebesar 10 persen, penurunan harga sebesar 10 persen serta kenaikan biaya sebesar 10 persen dan penuruna harga sebesar 10 persen secara bersamaan Pada kenaikan biaya sebesar 10 persen, proyek peremajaan masih layak dilaksanakan, demikian juga pada penurunan harga sebesar 10 persen. Pada kedua keadaan tersebut, proyek mesih memenuhi kriteria kelayakan. Sedangkan pada waktu diadakan analisis sensitivitas, kenaikan biaya sebesar dan penurunan 10 persen harga sebesar 10 persen secara bersamaan proyek sudah tidak layak lagi dilaksanakan.
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Judul: Seroprevalence of Chikungunya and The Risk of Transmission Transmitted Among Blood Donors In Sulawesi-Indonesia
Abstrak: Chikungunya (CHIK) is an arthritogenic alphavirus in the Togaviridae family of arboviruses with an enveloped RNA containing a positive single-stranded 11.8 kb genome. Transmission occurs through the bite of infected Aedes mosquitoes, which are commonly found in tropical and temperate regions. Primary vertebrate hosts include monkeys and humans, in whom this virus replicates efficiently (Diallo et al. 1999). Chikungunya virus (CHIKV) is known for causing acute illness, manifesting with fever, rash, and arthralgia known as Chikungunya fever (Horwood dan Buchy 2015). Despite the high number of Chikungunya cases in Indonesia, comprehensive data are lacking in CHIKV seroprevalence. Previous studies reported the median seroprevalence of anti-CHIKV antibodies in all situations 18.5%, ranging from 0.0 – 73.% (Harapan et al., 2019). However, the gap in epidemiological data of CHIKV in many regions of Indonesia including Sulawesi, is noteworthy. The objective of this study was to determine the seroprevalence of CHIKV infection among healthy individuals from North and South Sulawesi using archive samples. Additionally, an asymptomatic course of CHIKV infection and the high pre-symptomatic viral load as 108pfu/mL (Appassakij et al. 2013) suggest that the infection can threaten blood transfusion safety. Evidence of CHIKV infection among blood donors (Simmons et al. 2016) indicates transfusion-transmitted is probable, although it has not been documented (Petersen dan Epstein 2014). Our study also aimed to test the archive blood donor specimens from North Sulawesi for CHIKV IgM and viremia to determine blood safety in endemic areas. Samples were screened for anti-CHIKV IgG antibodies to determine exposure to CHIKV using an in-house IgG ELISA as previously described (Kosasih et al. 2013) with minor modifications. CHIKV IgM, a marker for recent infection and endemicity, was tested in 303 samples randomly selected from IgG-positive samples using a Euroimmun anti-CHIKV IgM ELISA kit (Luebeck, Germany) following the manufacturer’s instructions. CHIKV RNA detection was carried out using one-step-qRT-PCR. The data generated were analyzed with IBM-SPSS v20 (IBM Corporation, USA). Chi-square (χ2) test to determine significant differences between categorical variables, and a p-value less than 0.05 was considered statistically significant. As many as 1092 serum and plasma samples were analyzed, with CHIK IgG seropositivity at 53.48% (584/1092). The results also show a statistically significant difference in the seropositive rates based on gender (58.8% male and 48.5% female) and region (53.9% South Sulawesi versus 48.7% North Sulawesi). Seropositivity increased with age; approximately half of adults between their 40s and 60s had seroconverted. Most of the participants, 304 (27.8%), were between 21-30 years. The age groups with the least participants were those >60 years and <20 years, with 93 participants each (8.5%), followed by the 51–60-years age group with 142 (13.0%) participants. In addition to IgG, the overall anti-CHIKV IgM seropositivity comprised 12.9% (39/303). A Chi-square analysis shows a statistical significance of anti-CHIKV IgM seropositivity based on gender and region with p-values (p=0.047 and p=0.038, respectively). On the contrary, there was no significant difference in anti-CHIK IgM based on age. The age group with the most participants was the 21-30 years with 19.3% (16/83), while those with the least participants were those >60 years. The current study
Keyword: Chikungunya, Serosurvey, Sulawesi, Blood donors, ELISA, qRT-PCR.