Judul: Hubungan Daya Hantar Listrik dengan Keragaan Rumput Laut Kappaphycus alvarezii Asal Maumere dan Tembalang pada Budidaya Sistem Longline
Abstrak: Seaweed Kappaphycus alvarezii species Maumere and Tembalang was dominant developed in bay Gerupuk and got a good market response. Seaweed Tembalang and Maumere are the species of Kappaphycus geographically different origins. Both type of seaweed that is the producer of carrageenan. Maumere and seaweed production Tembalang cultivated by longline method is still fluctuating and unstable. Performance of Growth and carragenan seaweed influenced by the availability of nutrients in the water which represented the value of conductivity or electrical conductivity (EC) as well as the lighting and internal factors related to the conductivity of chlorophyll and sea grass. high to low EC of sea water associated with nutrients and affect the process of osmoregulation seaweed. The purpose of the study was to evaluate the performance of seaweed type Tembalang and Maumere in longline system of cultivation by its relationship with EC of sea water. This study was conducted from July to September 2012 in the waters of Gulf Gerupuk, Lombok Tengah regency, Nusa Tenggara Barat Province. Seaweed cultivation was done by longline system using the ris rope 50 m of length each with 2 ropes for Maumere and Tembalang seaweed. Each ris contains 250 seeds clump of seaweed and the distance of each clump was 20 cm. The parameters were analysed consist of daily growth rate (DGR) of seaweed and wet harvesting weights, electrical conductivity (EC) of seaweed and sea water, water quality and quality of carrageenan. The results showed that EC of seawater were significantly different (P ≤ 0.05) with EC of seaweed Maumere (72.41 ± 0.22) and EC of seaweed Tembalang (69.80 ± 0.70). The rate of growth and harvest seaweed Maumere weights were significantly different (P ≤ 0.05) with Tembalang seaweed, which has Maumere seaweed growth rate of 4.36 ± 0.06 % and harvest weight of 743.33 ± 20.82 g. Chlorophyll Tembalang seaweed seaweed significantly different from Maumere the average number of 5.71 ± 0.06 mg/g talus. EC of sea water is positively correlated with performance of seaweed, except viscosity and sulfate are negatively correlated (r = -0997 and r = -0789) in Maumere seaweed and sulfate remain positively correlated (r = 0.193) in the seaweed Tembalang.
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Judul: Pertumbuhan Kappaphycus alvarezii Starin Maumere dan Strain Sacol, serta Euchema denticulatum  di Perairan Desa Musi, Kecamatan Gerokgak , Kabupaten Buleleng Bali
Abstrak: Rumput laut merupakan salah satu komoditas potensial Indonesia yang digunakan sebagai bahan baku penting pada berbagai industri seperti makanan, kosmetik dan farmasi. Kebutuhan rumput laut yang tinggi menuntut peningkatan produksi melalui budidaya. Kappaphycus alvarezii dan Euchema denticulatum merupakan jenis rumput laut yang banyak dibudidayakan. Terdapat beberapa strain Kappaphycus alvarezii seperti Maumere, sacol dan strain lokal yang dibudidayakan. Setiap jenis dan strain rumpurt laut tersebut memiliki karakteristik khas yag terkait dengan lokasi budidayanya. Tujuan penelitian ini adalah untuk menentukan jenis rumput laut yang memberikan pertumbuhan terbaik anatara Kappaphycus alvarezii strain Maumere dan strain sacol, serta Euchema denticulatum yang dibudidayakan di perairan Desa Musi , Kecamatan Gerokgak, Kabupaten Buleleng pada musim Timur. Kualitas perairan dimana rumput laut tersebut dibudidayakan juga diukur dan dikaji. Pada penelitian ini dilakukan budidaya rumput laut jenis Kappaphycus alvarezii strain Maumere, Kappaphycus alvarezii strain Sacol dan eucheuma denticulatum dengan menggunakan sistem long line. Setiap tali ris sepanjang 50 m diisi 3 j3nis rumput laut sebanyak 20 bibit per jenis. Jarak antar bibit dalam satu ris adalah sepanjang 2 meter. Posisi rumput laut dalam tali ris ditentkan secara acak anatar tiap kelompok. Satu kelompok terdiri dari 10 tali ris dengan posisi penanaman rumput laut yang sama terdiri dari 3 ulangan. Rancangan percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan jenis sebagai perlakuan dan lokasi sebagai kelompok. Untuk melihat pengaruh perlakuan dan kelompok dilakukan analisis ragam.
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Judul: Grup dan Homomorfisma Grup pada Rubik Revenge
Abstrak: Rubik cube is a kind of puzzle game. A player must arrange rubik sides, which have been disordered, back to the position where every side has the same colour. This paper does not focus on the settlement solution, but instead on proving the existence of a group homomorphism between rubik movement group and S96 symmetric permutation group in rubik revenge. Firstly, it has been proved that rubik movement set is a group. Then, it also has been proved that the M set, which contains numeric labels of 1 until 96 in cubinos sides, is S96 symmetric permutation group.
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