Judul: Identification of Entamoeba histolytica in Long-Tailed Macaque (Macaca fascicularis) at Primate Research Center IPB University with Nested PCR
Abstrak: Monyet ekor panjang banyak ditemukan di Indonesia, khususnya di wilayah Bali, Kalimantan, Sumatra, dan Jawa. Interaksi antara manusia dan monyet ekor panjang meningkatkan risiko transmisi penyakit zoonotik akibat infeksi protozoa pada monyet ekor panjang. Entamoeba spp. diketahui sebagai protozoa yang paling banyak menginfeksi monyet ekor panjang. Spesies Entamoeba histolytica memiliki risiko zoonosis. Spesies ini diketahui sebagai penyebab amoebiasis yang menimbulkan ratusan ribu kasus kematian pada manusia. Oleh karena itu, penelitian ini dilakukan untuk mengidentifikasi spesies Entamoeba yang menginfeksi monyet ekor panjang di Pusat Studi Satwa Primata IPB. Metode nested PCR dipilih karena dianggap sebagai metode yang memiliki sensitivitas dan spesifisitas tinggi dalam mengenali spesies Entamoeba. Hasil penelitian menunjukkan bahwa 6 dari 20 (30%) sampel positif Entamoeba spp. dan 5 dari 20 (25%) sampel tersebut positif Entamoeba histolytica. Upaya pencegahan infeksi Entamoeba histolytica pada monyet ekor panjang dapat dilakukan melalui peningkatan sanitasi kandang, pemerhatian manajemen perkandangan, dan pemberian vaksin., Long-tailed macaques are commonly found in Indonesia, especially in Bali, Kalimantan, Sumatra, and Java. The interaction between humans and long-tailed macaques increases the risk of zoonotic disease transmission due to protozoan infection in long-tailed macaque. Entamoeba spp. is known to be the most common protozoan infects long-tailed macaque. Entamoeba histolytica species cause zoonotic risk. This species also known as the cause of amoebiasis which causes hundreds of thousands of deaths in humans. Therefore, this study was conducted to identify species of Entamoeba that infects long-tailed macaques in Primate Research Center IPB University. The nested PCR method was chosen because it is considered to have high sensitivity and specificity in identifying Entamoeba species. The result showed that 6 out of 20 (30%) samples were positive for Entamoeba spp. and 5 out of 20 (25%) of these samples were positive for Entamoeba histolytica. Prevention of Entamoeba histolytica infection in long-tailed macaques can be done through improving cage sanitation, intensifying cage management, and administering vaccines.
Keyword: Entamoeba histolytica, long-tailed macaque, nested PCR, Macaca fascicularis, Primate Research Center IPB University 

Judul: Identifications of Gastrointestinal Parasites in Long-Tailed Monkey (Macaca fascicularis) at The Primate Research Center of IPB  University
Abstrak: Parasitic infection is a problem that is often found in nonhuman primates, including the long-tailed monkey (Macaca fascicularis). Parasitic infections in the digestive tract need to be concerned because they can interfere with the well-being of long-tailed monkeys in captivity and have the potential to become a source of zoonotic diseases that can spread to humans. This study aims to identify gastrointestinal parasites in long-tailed monkey feces at the Primate Research Center of IPB University. A total of 69 samples of long-tailed monkey feces were examined using native method and trichrome staining to identify parasites. The results showed that there were Entamoeba spp., E. polecki, E. coli, E. histolytica/E. dispar, Endolimax nana, Balantidium coli, Iodamoeba bütschlii, Giardia sp., and Ancylostomatidae, allegedly derived from the water in PSSP IPB. Change in stool consistency is assumed to be due to factors other than parasitic infection., Infeksi parasit merupakan salah satu masalah yang sering ditemukan pada satwa primata, termasuk monyet ekor panjang (Macaca fascicularis). Infeksi parasit pada saluran pencernaan perlu diwaspadai karena dapat mengganggu kesehatan monyet ekor panjang di penangkaran dan berpotensi menjadi sumber penyakit zoonotik yang dapat menyebar kepada manusia. Penelitian ini bertujuan mengidentifikasi parasit gastrointestinal pada feses monyet ekor panjang di Pusat Studi Satwa Primata (PSSP) IPB. Sebanyak 69 sampel feses monyet ekor panjang diperiksa menggunakan metode natif dan pewarnaan trichrome untuk mengidentifikasi parasit. Hasil pemeriksaan menunjukkan bahwa terdapat Entamoeba spp., E. polecki, E. coli, E. histolytica/E. dispar, Endolimax nana, Balantidium coli, Iodamoeba bütschlii, Giardia sp., dan Ancylostomatidae, yang diduga bersumber dari air yang digunakan di PSSP IPB. Perubahan konsistensi feses diduga diakibatkan faktor selain infeksi parasit.
Keyword: zoonoses, Macaca fascicularis, gastrointestinal parasites, long-tailed monkey

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition