Judul: Efektivitas pengendalian penyakit bakterial pada pembesaran ikan lele Clarias sp. dengan pakan yang mengandung bawang putih dan meniran
Abstrak: Penelitian ini bertujuan untuk menentukan efektivitas penggunaan pakan yang mengandung bawang putih dan meniran untuk pengendalian penyakit bakterial pada pembesaran ikan lele. Ikan lele yang digunakan memiliki panjang 7,27 ± 0,34 cm dan bobot tubuh 3,53 ± 0,51 g. Wadah yang digunakan adalah bak terpal yang berukuran 2 m x 1 m x 0,5 m sebanyak 12 buah. Perlakuan yang diujikan adalah Kontrol (-) (tanpa pemberian pakan uji dan tanpa pergantian sumber air), Kontrol (+) (tanpa pemberian pakan uji dan dengan pergantian sumber air), Pencegahan (pemberian pakan uji dengan dosis bawang putih 1,4% dan meniran 0,7% sebelum pergantian sumber air selama 21 hari), Pengobatan (pemberian pakan uji dengan dosis bawang putih 2,8% dan meniran 1,4% setelah pergantian sumber air selama 14 hari). Hasil penelitian menunjukkan kelangsungan hidup perlakuan pengobatan 95,38 ± 4,24% berbeda nyata dengan perlakuan Kontrol (+) (P≤0,1). Perlakuan bawang putih 2,8% dan meniran 1,4% efektif untuk pengendalian penyakit bakterial pada pembesaran ikan lele Clarias sp. dengan memberikan kelangsungan hidup tertinggi yakni 95,38%.
Keyword: Bacterial disease, Catfish, Grow out, Alium sativum, Phyllantus niruri

Judul: Efektivitas Pengendalian Penyakit Bakterial pada Pembesaran Ikan Lele Clarias sp. dengan Pakan yang Mengandung Bawang Putih dan Meniran
Abstrak: This study aimed to determine the effectiveness of the use of feed containing Allium sativum and Phyllanthus niruri to control bacterial diseases in catfish grow out. Catfish used in this experiment was as length as 7.27 ± 0.34 cm and as body weight as 0.51 ± 3.53 g. Catfish was maintained in plastic ponds with size of 2 m × 1 m × 0.5 m as many as 12 pieces. The treatments applied were Control (-) (without experimental feeding and without water changing), Control (+) (without experimental feeding and with water changing), Prevention (feeding with Allium sativum dose 1.4% and Phyllanthus niruri 0.7% before water changing for 21 days), medical treatment (feeding with Allium sativum dose 2.8% and Phyllanthus niruri 1.4% after water changing for 14 days). The results demonstrated that the survival in medical treatment reached 95.38% ± 7.43%, that was significantly different from control (+) treatment (P ≤ 0.1). Allium sativum and Phyllanthus niruri treatment with the dose of 2.8% and 1.4% were effective for bacterial disease control in catfish Clarias sp. grow out that showed the highest survival of 95.38%.
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Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology