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: Gastrointestinal Nematodosis in Long-Tailed Monkeys  (Macaca fascicularis) at The Primate Research Center of LPPM IPB
Abstrak: Nematodosis umum ditemukan pada kelompok primata non-human primate yang dimanfaatkan untuk penelitian. Nematodosis gastrointestinal pada monyet ekor panjang yang digunakan sebagai hewan model dalam penelitian biomedis dapat mempengaruhi hasil penelitian. Penelitian ini bertujuan mengidentifikasi tipe, menghitung derajat infeksi, dan prevalensi nematoda gastrointestinal pada monyet ekor panjang di kandang penangkaran Pusat Studi Satwa Primata Lembaga Penelitian dan Pengabdian kepada Masyarakat IPB (PSSP LPPM IPB). Sebanyak 24 sampel feses monyet ekor panjang diperiksa menggunakan metode flotasi sederhana, McMaster dan Kato-Katz. Sembilan (37,5%) dari 24 monyet ekor panjang terinfeksi oleh trichurid (20,8%), ascarid (12,5%) dan strongylid (4,2%%) dengan rataan derajat infeksi berturut-turut 833,3 ± 923,8 telur tiap gram tinja (TTGT), 32 ± 27,7 TTGT dan 12 ± 17 TTGT. Prevalensi namatodosis berdasarkan kelompok umur dan jenis kelamin yaitu pada bayi 50%, anakan 50%, remaja 16,7%, dewasa 33,3%, jantan 33,3% dan betina 41,7%., Nematodosis is commonly found in non-human primate groups used for research. Gastrointestinal nematodosis in long-tailed monkeys used as animal models in biomedical research can affect research results. This study aims to identify the type, calculate the degree of infection and the prevalence of gastrointestinal nematodes in long-tailed monkeys in captivity at the Primate Animal Study Center, Institute for Research and Community Service of IPB (PSSP LPPM IPB). A total of 24 samples of long-tailed monkey feces were examined using the simple flotation method, McMaster and Kato-Katz. Nine (37.5%) of the 24 long-tailed monkeys were infected by trichurid (20.8%), ascarid (12.5%) and strongylid (4.2%%) with a mean infection degree of 833.3 ± 923, respectively. ,8 eggs per gram of feces (TTGT), 32 ± 27.7 TTGT and 12 ± 17 TTGT. The prevalence of namathodose based on age group and gender was 50% in infants, 50% young juveniles, 16.7% in juveniles, 33.3% in adults, 33.3% in males and 41.7% in females.
Keyword: derajat infeksi, monyet ekor panjang, nematoda gastrointestinal, prevalensi, intensity of infection, gastrointestinal nematodes, long-tailed monkeys, prevalence

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