Judul: Aktivitas Larvasida Ekstrak Bintaro (Cerbera manghas) Terhadap Larva Nyamuk Aedes aegypti (Diptera: Culicidae)
Abstrak: Dengue is a very dangerous disease and contagious because it causes deadth at short time on the patient. This desease was caused by dengue virus which was infected by Aedes aegypti. Plants have potency to develop as larvacide because itself containts chemical compound which have bioactive. Bintaro (Cerbera manghas) have been known as poisonous tree. The aim of this research is to know the activity of bintaro extract to larvae Ae. aegypti. First, we extracted a leaf, steam bark, kernel and rind of bintaro. Then the best extract was fracinated, after that it was done chromatography colom step. Futhermore, we did bioassay to larvae Ae. aegypti for every step. The result showed that kernel of bintaro have highest activity to mortality of larvae Ae. aegypti than steam bark, rind, and leaf; with LC50 517,3 ppm dan LC90 964,8 ppm. Ethyl acetate fraction have great activity to mortality of Ae. aegypti than n-hexane dan nonsoluble fraction with LC50 34,6 ppm dan LC90 95,1 ppm. We had 10 sub fractions in this research and the sub fraction 1, 7 and 10 had most toxic compound to Ae. aegypti than the others. The kernel extract contains saponim, alkaloid, flavonoid, triterfenoid glikosida and steroid.
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Judul: Efektivitas Ekstrak Buah Bintaro (Cerbera odollam) sebagai Larvasida Lalat Rumah (Musca domestica)
Abstrak: Cerbera odollam is known as bintaro in Indonesia. It is a poisonuous plant which is found at seaside, mangrove forest, and widely used to hold a high wave, prevent landslide, and as decorated plant. Bintaro has potential as a natural larvicide but there is no research about using bintaro to control Musca domestica’s larvae in Indonesia. The objective of this research is to measure effectiveness of bintaro as a larvicide of M. domestica. The parts of bintaro which is used for research were seeds and barks. Seeds and barks were extracted by methanol 96% and diluted by aquabidest. The concentration of extract divided to some groups, there was negative control which is only given aquadest, seeds extract 10, 30 , 60, 80 g/100 ml and barks extract 80 g/100 ml. Seeds and barks extract were tested to larvae groups. The result showed that seeds and barks extract of Bintaro can be used for larvicide. Seeds extract was more effective than barks extract. Phytochemical screening showed that alkaloids, flavonoids, saponins, tannins, and steroids were the secondary metabolite compounds contained in seeds and barks.
Keyword: seeds, Musca domestica, larvicide, Cerbera odollam, barks

Judul: Konstruksi Persamaan Friedmann Alam Semesta Friedmann-Lemaitre-Robertson-Walker Termodifikasi Materi Gelap Superfluida
Abstrak: Kosmologi merupakan salah satu objek kajian dari teori relativitas umum. Salah satu model dalam kosmologi adalah model kosmologi Friedmann. Model kosmologi Friedmann dibangun berdasarkan asumsi bahwa materi dan energi terdistribusi secara homogen dan isotropik di alam semesta. Teori relativitas umum dapat dimodifikasi melalui pendekatan teori materi gelap superfluida (MGS). Persamaan medan Einstein untuk teori MGS dapat dirumuskan melalui prinsip aksi dengan memodifikasi Lagrangian pada aksi teori MGS. Selanjutnya dengan memilih metrik Friedmann-Lemaitre-Robertson-Walker (FLRW) datar dengan indeks kurvatur sama dengan nol, dapat dibangun suatu bentuk persamaan Friedmann yang dimodifikasi teori MGS.
Keyword: kosmologi, teori materi gelap superfluida, persamaan medan Einstein, metrik FLRW, persamaan Friedmann.