Judul: Study of agronomic character of medicinal plants meniran (Phyllanthus niruri L. and Phyllanthus urinaria L.)
Abstrak: Phyllanthus niruri L. and Phyllanthus urinaria L. were identified as weeds in rice plants and used as a medicinal plant. The objectives of this research were (1) to identify and analyze public opinion which is the existence and used of phyllanthus as medicinal plants, (2) to identify and analyze the morphological character and contain of bioactive that can be used as selection criteria for biomass production and high production of bioactive, (3) to identify and analyze the diversity and genetic proximity 13 accessions of morphological character, anthocyanin content and RAPD markers, (4) to identify and analyze the effects of environmental factors (light, water and nutrients) on growth, biomass production and contain of bioactive meniran. Exploration in Bangkalan and Gresik, East Java Province, get 13 accessions belonging to six green meniran (Phyllanthus niruri L.) accessions from Bangkalan, one red meniran (Phyllanthus urinaria L.) accession from Bangkalan and six green meniran (Phyllanthus niruri L.) accessions from Gresik. The results of a survey of public opinion indicated that the meniran plant have already known and used by the community. Morphological characters are correlated positively and significantly to the production of dry biomass were plant height, leaf number, branch number, stem diameter and total wet weight. Stem diameter, number of branches, total wet weight and leaf number directly affects the production of dry biomass and can be used as characters for selection. Exploration result carried out 13 accessions and 2 types meniran, green meniran (Phyllanthus niruri L.) and red meniran (Phyllanthus urinaria L.), that developed two groups including group A consists of all accessions green meniran and group B consist of one red meniran accessions, based on RAPD markers. Among 12 accessions of green meniran 2 accessions, green meniran from Bangkalan (A6) and Gresik (A7), were higher on potential growth and biomass production than the others. Though, red meniran from Bangkalan accession (A13) has the great potential bioactive production. Based on the analysis, Phyllanthus response to the differences treatment of shade, fertilization and soil water level shown that to achieve the high growth and biomass production, green meniran (A6 and A7) need opening condition until 25% shading, combination of fertilizer manure + NPK and 100% soil water available to plants.Green meniran (A7) could produce the high contain phyllantin under the without shade condition and manure treatment. The high contain of hypophyllantin on green meniran (A7) need 50% shading there with given manure. Red meniran on considerably conditions (manure + NPK treatment and the availability of 50% soil water for the plants) produce the high contain of anthocyanin leaf.
Keyword: Medicinal Plants, Meniran, Phyllanthus niruri L., Phyllanthus urinaria L., Phyllanthus, phyllantin, hypophyllantin, anthocyanin, flavonoid

Judul: Karakterisasi Berbagai Aksesi Meniran (Phyllanthus niruri L.), Studi Perkecambahan dan Pematahan Dormansi.
Abstrak: This research aims to characterize some accession meniran, get information about seed viability of meniran and methods germination test of meniran. This research was conducted from February 2012 to June 2012. The accession of Phyllanthus niruri L. that used in this research are come from Gresik, Jember, Kebon Kalapa, Leuwikopo and accession come from Semplak. The research consists of three experiments. The first experiment to characterize meniran. Experimental design used is a Randomized Blok Design (RKLT) by a factor that is accession. A second experiment to see the effect of pre-germination on the viability meniran. The data obtained were tested by t test. The third experiment get information about methods of germination test meniran. The data obtained were tested by t test. The results of the research showed that characters of Phyllanthus niruri L is devided in to three main grouped, where the degree of similarity 45.21% Jember accession separately from the other accessions. Differences accession Jember prominent than the other accessions in character fruit color (red), branch color (red-purple), while the other accessions green. At the rate of 77.63% similarity, there are Gresik and Semplak in one group and Kebon Kalapa, Leuwikopo, Sawah Baru in other group that has highest production of biomass. Seed soaking treatment with water and 250 ppm IAA gives the same effect as no treatment on the viability various accession meniran. Value germination pre soaking seed treatment with GA3 influence was significantly higher when compared with the value of germination without treatment, seed treatment with 250 ppm GA3 increase seed viability meniran, increased viability seen from the increase to grow the seed, grow the seed in which the value of 49.7% (without treatment) increased to 79.0% (GA3 soaking treatment). Meniran seed germination in the nursery with soil mixed media manure with a ratio of 1:1 has has the higher average value of the maximum growth when compared with germination in laboratory test methods. In this research, the test method in the form of laboratory test methods and UDK ½ UKDdp with or without pre-germination of GA3 250 ppm, not to be able to represent the corresponding germination potential of the seeds germinated in the nursery.
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Judul: Formulasi Hamilton Untuk Menggambarkan Deformasi Gelombang Soliter Dengan Dasar Tidak Rata Pada Fluida Dua Lapisan
Abstrak: Gelombang internal adalah suatu gelombang yang muncul di bawah permukaan laut sehingga gelombang ini tidak teramati secara kasat mata. Formulasi Hamilton dirumuskan untuk menjelaskan gerak gelombang ini. Dalam hal ini diasumsikan bahwa fluida yang ditinjau terdiri atas dua lapisan dengan masing-masing lapisan memiliki rapat massa yang konstan. Selain itu, diasumsikan pula fluida yang ditinjau berupa fluida tak mampat (incompressible) dan tak kental (invicid). Formulasi Hamilton dilakukan dengan meninjau fluida dua lapisan yang berada pada domain yang dibatasi oleh batas atas yang rata dan batas bawah yang tidak rata. Hamilton (energi total)-nya didefinisikan sebagai penjumlahan antara energi kinetik dan energi potensialnya. Karena energi kinetik tidak secara eksplisit dinyatakan dalam peubah fisis, maka digunakan metode asimtotik untuk menentukan energi totalnya. Dalam hal ini diasumsikan bahwa gelombang interfacial yang ditinjau cukup panjang, dan amplitudo yang cukup kecil. Persamaan Korteweg de- Vries (KdV) diperoleh, jika disumsikan bahwa gelombang interfacial hanya merambat pada satu arah, sedangkan jika gelombang tersebut merambat ke dua arah, diperoleh persamaan Boussinesq.
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