Judul: Solusi Problem Gaussian Pairing Dalam Basis Osilator Harmonik Menggunakan Teori Perturbasi Dan Metode Numerik
Abstrak: This study aims to determine the profile of the energy and the wave function of a harmonic oscillator system under the effect of a Gaussian potential. This function can be used to model such fermions. The solution of this problem can be described by more efficiently using a perturbation theory based on the harmonic oscillator. The first four levels of energy and the wave function has been described using the analytical method and Numerical Methods . These results are displayed in graphical form . Wave function is shown in graphic form relation between the wave function and atomic distance, whereas energy shown in the form of relation between energy and the pairing constant g. From the graph shows that the ground state and the first excitation energy of the system will decrease with increasing pairing constant g, whereas for the higher excitation energy of the system increases with increasing pairing constant g. This is because when the system is in the ground state and the first excitation, the system tends to be localized in one place, whereas at higher excitation , the system will often be not only in one place, but some places are indicated by the peaks of density of system . Energy system obtained from the analytical and numerical methods haven’t significant. This is mean that to analize a higher excitation state can use numerical methods such as Numerov Method and Shooting Method to be more efficient
Keyword: Shooting Method, Harmonic Oscillator, Numerov Method, Gaussian Pairing

Judul: Gaussian solution of Pauli equation and uncertainty relation for spin-½ particle
Abstrak: Persamaan Pauli merupakan persamaan gelombang yang memberikan pemahaman lebih terkait pengaruh spin pada sebuah sistem kuantum. Penelitian ini menginvestigasi solusi persamaan Pauli pada 2 kasus potensial—yang juga berkaitan dengan medan listrik—eksternal berbeda. Berbeda dengan penelitian sebelumnya yang menggunakan koordinat curvilinear, penelitian ini menggunakan metode ansatz berbasiskan Gaussian wave packets pada koordinat kartesius. Hasil dari penelitian ini menunjukkan bahwa medan elektromagnetik eksternal mempengaruhi parameter-parameter fungsi gelombang dan densitas probabilitas dari sistem kuantum. Selain itu, berbasiskan interpretasi kuantum Budiyono-Rohrlich, keberadaan medan elektromagnetik eksternal juga meningkatkan relasi ketidakpastian dari sistem, sehingga akan melebihi batas minimum ketidakpastian Heisenberg. Penelitian ini juga berhasil mendapatkan solusi untuk kasus 2 partikel atau sistem bipartite menggunakan pendekatan yang serupa., The Pauli equation is a wave equation that provides a better understanding of the spin effects on a quantum system. This study investigated the solution of the Pauli equation in two different external potentials—which also related to the electric field—cases. Unlike previous studies that used curvilinear coordinates, this study used an ansatz method based on Gaussian wave packets on Cartesian coordinates. The results of this study showed that the external electromagnetic field affected the parameters of the wave function and the density probability of the quantum system. Furthermore, based on the Budiyono-Rohrlich quantum interpretation, the external electromagnetic field also increased the uncertainty relation of the system. This study also successfully obtained the solution for the case of two particles or a bipartite system using a similar approach.
Keyword: Gaussian wave packets, medan elektromagnetik eksternal, persamaan  Pauli, relasi ketidakpastian kuantum

Judul: Infeksi Cacing Saluran Pencernaan pada Macan Tutul Sri Lanka (Panthera pardus kotiya) di Taman Margasatwa Ragunan, Jakarta Selatan.
Abstrak: International union for Conservation of Nature (IUCN) telah menetapkan macan tutul sebagai hewan rentan punah pada tahun 2016. Upaya perlindungan macan adalah observasi hingga konservasi in-situ dan ex-situ seperti pada Taman Margasatwa Ragunan. Tujuan penelitian ini untuk mempelajari persentase infeksi, dan intensitas kecacingan saluran pencernaan pada Macan Tutul Sri Lanka (Panthera pardus kotiya) di Taman Margasatwa Ragunan. Sampel feses dikumpulkan dari lima macan di area I dan tiga macan di area II. Pemeriksaan sampel feses menggunakan metode modifikasi teknik McMaster, teknik flotasi sederhana, dan teknik filtrasi-sedimentasi. Hasil penelitian menunjukkan bahwa persentase infeksi kecacingan pada delapan ekor macan tutul yaitu strongyle 75% dan Strongyloides sp. 37.5%. Macan tutul jantan persentase infeksi strongyle sebesar 75% dan Strongyloides sebesar 50%. Macan tutul betina persentase infeksi strongyle sebesar 75% dan Strongyloides sebesar 25%. Adapun persentase infeksi berdasarkan area kandang, infeksi strongyle dan Strongyloides berturut-turut sebesar 80% dan 60% di area I, dan sebesar 66.7% dan 0% di area II. Seluruh hewan menunjukan derajat infeksi termasuk dalam kategori relatif rendah (TTGT= 0-50)
Keyword: cacing saluran pencernaan, macan tutul sri lanka, taman margasatwa