Judul: Tinjauan Konservasi Kelor (Moringa oleifera Lam): Studi Kasus di Desa Cikarawang Kecamatan Dramaga Kabupaten Bogor
Abstrak: Moringa (Moringa oleifera Lam.) is a multifunction plant which is useful from the roof until the leaf for health, as food, an increasing environment quality. Research about the usefulness of moringa by Indonesian people and the existence hasn’t been done. The purpose of this research is to identify usefulness of moringa by the people and the existence of moringa in Cikarawang Bogor. This research was done in Cikarawang Bogor from May to June 2013. The data was collecting by field observation and interviewing by snowball method. Based on the result, moringa could be found at almost all hamlet in Desa Cikarawang which is had by 24 families heads or 1,14% from the totally families heads in the village. The census result showed that 65 individuals of moringa in Cikarawang which is planted in various type of habitat. The usefulness type of moringa which is done by the village people are 34 % for ritual custom, 42% for medicine, 12 % for food and 12 % for hedge of rice field.
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Judul: Growth Response of Moringa Cuttings to Position of Cuttings and Application of Auxin
Abstrak: Kelor merupakan sayuran indigenous yang belum diperbanyak secara massif di Indonesia. Perbanyakan pada kelor dilakukan secara generatif dan vegetatif. Perbanyakan vegetatif dengan setek hanya menghasilkan satu bibit setek dengan presentase hidup 63,33%. Sehingga perlu dilakukan peningkatan jumlah setek dan presentase hidup setek. Penelitian ini bertujuan mempelajari respon pertumbuhan bahan tanam kelor berdasarkan posisi peletakan setek dan aplikasi auksin. Penelitian dilaksanakan mulai bulan Juli – Desember 2023 di Kebun Percobaan Cikabayan Atas. Percobaan dilakukan menggunakan rancangan acak lengkap dua faktor dengan 3 ulangan. Faktor pertama posisi setek dua taraf yaitu horizontal dan vertikal kemudian faktor kedua aplikasi auksin dua taraf yaitu tanpa auksin dan dengan auksin. Kandungan metabolit sekunder daun kelor pada penelitian ini untuk total flavonoid 0,52 – 0,67 mg g-1, antosianin 0,07 – 0,19 mg 100 g-1, karoten 0,77 – 0,83 mg 100 g-1, dan total fenol 4,99 – 5, 42 % (b/b). Hasil dari posisi peletakan setek, aplikasi auksin, dan interaksi kedua faktor pada tanaman kelor belum bisa dijadikan sebagai rujukan, karena tingkat populasi setek hidup sampai akhir pengamatan yang rendah. Hal ini disebabkan adanya serangan hama selama proses penelitian., Moringa is an indigenous vegetable that has not been cultivated on a large scale in Indonesia. Propagation of moringa is achieved through generative and vegetative means. Vegetative propagation with cuttings produces a single seedling with a live percentage of 63,33%. Therefore, enhancing the number of cuttings and the percentage of living cuttings is essential. This research aims to investigate the growth response of moringa planting material about the position of the cuttings and the application of auxin. The study was conducted between July and December 2023 at the Cikabayan Experimental Garden. The experiment was designed using a two-factor completely randomized design with three replications. The first factor was two levels of cutting position, horizontal and vertical, while the second was two levels of auxin application, namely without auxin and with auxin. The secondary metabolite content of moringa leaves in this research for total flavonoids 0,52 – 0,67 mg g-1, anthocyanins 0,07 – 0,19 mg 100 g-1, carotene 0,77 – 0,83 mg 100 g-1, and total phenols 4,99 - 5, 42% (b / b). However, the results of the position of the cuttings, the application of auxin, and the interaction of the two factors cannot be used as a reference, as the population level of live cuttings until the end of observation was low. This was due to pest attacks during the research process.
Keyword: auxin, flavonoid, moringa, cuttings, phenol

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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