Judul: Infeksi Cacing Saluran Pencernaan pada Orangutan Sumatera (Pongo abelii) dan Orangutan Kalimantan (Pongo pygmaeus) di Taman Margasatwa Ragunan.
Abstrak: Orangutan merupakan hewan endemik Indonesia dan satu-satunya spesies primata besar yang masih ada di Asia. International Union For Conservation of Nature and Natural Resources (IUCN) menyebutkan bahwa orangutan sumatera (Pongo abelii) dan orangutan kalimantan (Pongo pygmaeus) dikategorikan sebagai hewan yang sudah sangat terancam punah. Upaya konservasi ex-situ merupakan hal penting untuk mempertahankan kelestarian jenisnya. Penelitian ini bertujuan untuk mempelajari kejadian infeksi kecacingan saluran pencernaan pada orangutan sumatera dan orangutan kalimantan di Taman Margasatwa Ragunan. Sejumlah total 24 sampel tinja dikumpulkan dari 8 orangutan pada 3 area kandang yang berbeda. Pemeriksaan sampel tinja menggunakan modifikasi teknik McMaster, flotasi sederhana, modifikasi filtrasi-sedimentasi dan kultur feses. Identifikasi jenis cacing ditentukan melalui morfometri telur cacing serta larva infektif strongyle (L3) secara mikroskopik. Hasil penelitian menunjukkan bahwa persentase kecacingan pada delapan orangutan adalah 100%, yaitu strongyle 37.5% dan Strongiloides 100%. Derajat infeksi tertinggi adalah jenis Strongyloides ditemukan pada orangutan yang berumur sangat muda, sedangkan derajat infeksi strongyle relatif lebih rendah. Hasil identifikasi larva ditemukan L3 Trichostrongylus spp.
Keyword: Cacing saluran pencernaan, Pongo abelii, Pongo pygmaeus, Taman Margasatwa

Judul: Infestasi Cacing pada Orangutan Kalimantan (Pongo pygmaeus) dan Orangutan Sumatera (Pongo abelii) di Taman Margasatwa Ragunan
Abstrak: Bornean and Sumatran Orangutans are endemic faunas which are classified by CITES in Appendix 1, list that contains species of faunas which are threatened for commercial international trading. Orangutans are included as endangered animals as the result of the decrease of habitat and illegal hunting so it needs conservation effort. The purpose of this research are to study the species of gastrointestinal parasite (worms) in orangutans, such as Strongiloides, Ancylostoma and Trichostrongiloid that could be transfered within the population and transmitted from orangutans to human, also to study the degree of worms infestation in orangutans. Fresh fecal sample was collected in Ragunan Zoo, and put into buffer formaline 10%. Fecal sample was examined with native method,modified filtration-sedimentation method and calculating TTGT (egg in each gram feces) by using Mc.Master method. Fecal sampel was examined natively and found several worm egg type, those are ascarid, strongiloides, trichostrongiloid and trichuris. The sedimentation examination was done by using sugar-salt liquid and filtered levelly for detain trematoda eggs, however all sampels not showed positive result. Based on the result of fecal examination of orangutans in Ragunan Zoo showed that Bornean and Sumatran Orangutan were positively infected by Nematoda worms. Orangutan at Ragunan Zoo were infected by 4 worm eggs type those are strongiloides type, ascarid type, strongiloid type and trichurid type. Bornean orangutan and Sumatran orangutan were infected by ascarid worm egg type and strongiloides worm egg type with low-moderate risk infection. The strongiloid worm egg type infected the orangutan at Ragunan Zoo with low risk infection meanwhile the trichurid worm egg type founded only at one animal.
Keyword: fecal sample., Helminthiasis, Orangutan

Judul: Penyelesaian Numerik Persamaan Schrödinger untuk Molekul BaO dan SrO Menggunakan Model Potensial Morse
Abstrak: Morse potential is a potential model used to describe the behavior of a molecular vibration between atoms. This study aimed to obtain the value of the dissociation energy, the energy eigenvalues of each energy level, and describe the shape of the wave function of the molecule BaO and SrO on the vibrational state. Dissociation energy is calculated by adding the experimental dissociation energy and the ground state energy eigenvalues. Calculating the energy eigenvalues of the energy levels 0 to 4 using shooting method integrated with Numerov and Runge-Kutta method. Energy eigenvalues of each levels that calculated numerically having accuracy of 100% compared with the calculated analytically. The profil of wave functions accurately show the corresponding states and their normalized wavefunctions.
Keyword: SrO, Morse potential, energy eigenvalues, dissociation energy, BaO