Judul: Efektivitas Ekstrak Kipahit Tithonia diversifolia dan Kirinyuh Eupatorium inulaefolium untuk Pencegahan dan Pengobatan Penyakit Akibat Infeksi Aeromonas hydrophila pada Ikan Lele Clarias sp. Melalui Pakan
Abstrak: The purpose of the recent study was to test the effectivity of feed enrichment with Mexican sunflower and whiteweed extract against diseases caused by the infection of Aeromonas hydrophila in catfish. The research consisted of preventive treatment, curative treatment, positive, and negative control with 3 replications for each treatment which were analyzed using RAL method. The dosage of phytopharmacy extract used was 20 mg/ml. Extract enrichment of mexican sunflower Tithonia diversifolia and whiteweed Eupatorium linulaefolium in catfish feed orally was effective for preventive and curative for disease caused by A. hydrophila. Survival rate of catfish by mexican sunflower was as many as 95,83% and 95,83% for whiteweed. The mexican sunflower and whiteweed curative treatment respectively was as many as 95,83% and 83.33%, meanwhile the positive control only gave 58,33%.
Keyword: phytopharmacy, Eupatorium linulaefolium, Tithonia diversifolia, Aeromonas hydrophila

Judul: Efektivitas campuran tepung meniran Phyllanthus niruri dan bawang putih Allium sativum dalam pakan untuk pencegahan infeksi bakteri Aeromonas hydrophila pada ikan lele dumbo Clarias sp.
Abstrak: Motile Aeromonad Septicaemia (MAS) caused by Aeromonas hydrophila induced serious epidemics of ulcerative disease in walking catfish (Clarias sp.). Purpose of this research was to determine the effective dosage of Allium sativum and Pyllanthus niruri powders mixed in commercial feed with more applicable method in the field. The treatments tested were four different dosages of A. sativum and P. niruri powders, namely A (0,1%), B (1,1%), C (2,1%), D (3,1%) and control, namely K⁻ (without A. sativum and P. niruri powders, and injected with PBS 0,1 ml) and K⁺ (without A. sativum and P. niruri powders, and infected with A. hydrophila 0,1 ml). The treatments was given for two weeks before challenging test, at 15th day test in vivo carried out by injecting A. hydrophila (108 CFU/ml) into the fish by intramuscular and observed for 10 days. Parameters measured were survival rate, absolute growth, specific growth rate, clinical symptoms, wound healing, organs morphology, and water quality. Data were processed statistically using completely randomized design ANOVA single factor. The results showed that the survival of treatment K⁻ was 100±0,00%, C 60±20%, A 40±40%, B 40±40%, K⁺ 33,33±11,55%, and D 20±0,0% (p<0,05). The survival was not significantly different between treatment K⁻ and C. Thus C (2,1%) was effective and could be for preventing MAS in catfish (Clarias sp.).
Keyword: 

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.