Judul: Mempelajari tata letak dan sarana dalam mengoptimalkan kegiatan penanganan bahan : studi kasus: factory-3, PT. Yamaha Indonesia
Abstrak: Perancangan tata letak dan penanganan bahan pada dasarnya mempunyai kaitan yang sangat erat. Perancanaan tata letak harus dapat menjamin kelancaran aliran bahan dan penyimpanan bahan, baik bahan baku, bahan setengah jadi maupun produk jadi. Dalam hal ini, sering terjadi perencanaan tata letak dan perencanaan penanganan bahan dilakukan terlebih dahulu dibanding perencanaan fasilitas. Tata letak yang disusun dengan tepat akan sangat membantu dalam proses produksi serta dengan penempatan fasilitas produksi yang baik dapat memperlancar kegiatan penanganan bahan dan perpindahan bahan.
Keyword: tata letak, sarana

Judul: Desain Tata Letak Ruang dan Fasilitas Produksi Rumah  Pengomposan di PT Tanjungenim Lestari
Abstrak: Industri pulp and paper di Indonesia menghasilkan limbah berupa sludge yang berasal dari Instalasi Pengolahan Air Limbah (IPAL) dan abu sisa pembakaran boiler yang saat ini belum dimanfaatkan secara optimal. Salah satu alternatif penanganan dan pemanfaatan limbah tersebut yaitu dengan proses pengomposan. Proyek ini bertujuan untuk memanfaatkan limbah sludge dan boiler ash dari PT. Tanjungenim Lestari Pulp and Paper untuk dijadikan produk kompos dan menganalisis kualitas mutu kompos yang dihasilkan. Tujuan penelitian ini adalah merancang fasilitas bangunan rumah kompos. Hasil perancangan tata letak dilakukan dengan membuat desain 2D dan 3D dari usulan tata letak yang terpilih menggunakan bantuan software BPLAN90. Tata letak usulan yang terpilih merupakan salah satu dari 12 iterasi Algoritma BLOCPLAN. Layout yang terpilih yaitu layout usulan iterasi 7 dengan total luas area kerja 11236 m2 , total jarak penanganan bahan pada layout iterasi yang terpilih adalah sebesar 1457,72 m, dan nilai efektivitas tata letak sebesar 0,69. Desain 2D dan 3D dibuat dengan bantuan software SketchUp. Kata kunci: BLOCPLAN, IPAL, Kompos, Sludge, Tata Letak, The pulp and paper industry in Indonesia produces waste in the form of sludge originating from the Wastewater Treatment Plant (WWTP) and ash remaining from boiler combustion which has not been utilized optimally. One alternative handling and utilization of this waste is the composting process. This project aims to utilize sludge and boiler ash waste from PT. Tanjungenim Lestari Pulp and Paper to be used as compost products and to analyze the quality of the compost produced. The purpose of this research is to design compost housing facilities. The results of the layout design are carried out by making 2D and 3D designs from the selected layout proposals using the help of BPLAN90 software. The selected proposed layout is one of 12 iterations of the BLOCPLAN Algorithm. The selected layout is the iteration proposed layout 7 with a total working area of 11236 m2, the total material handling distance in the selected iteration layout is 1457.72 m, and the layout effectiveness value is 0.69. 2D and 3D designs are made with the help of SketchUp software. Keywords: BLOCPLAN, Composting, Layout, Sludge, WWTP
Keyword: BLOCPLAN, IPAL, Kompos, Sludge, Tata letak

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.