Judul: Tipologi Habitat dan Potensi Pemanfaatan Kantong Semar (Nepenthes aristolochioides) Di Taman Nasional Kerinci Seblat
Abstrak: Nepenthes aristolochioides is an endemic species found in Indonesia. This species is located in a narrow distribution on Mount Tujuh and is in the forest area of Kerinci Seblat National Park (TNKS), Kerinci Regency, Jambi Province. Nepenthes aristolochioides is one of the types of pitcher plants that are endemic in Indonesia and is the Nepenthes species are scarce and highly endangered. However, studies related to environmental factors that influence its existence have not been assessed. Therefore, a prediction model for the distribution of N.aristolochioides is needed as a habitat management solution. This study aims to make a prediction map of the habitat of N.aristolochioides in Kerinci Seblat National Park. Characteristics of the environmental factors of the N.aristolochiodes habitat that play an essential role in habitat suitability are the variables BIO19 (Precipitation of Coldest Quarter), BIO1 (Annual Mean Temperature), BIO13 (Precipitation of Wettest Month), DEM (Digital Evaluation Model). Prediction of the distribution of N.aristolochiodes habitat with moderate habitat suitability of 10,523 ha, while with a high suitability level, is 4,176 ha. Habitats with a high level of conformity are spread over two main administrative areas, namely, Gunung Tujuh Sector, Gunung Kerinci Sector.
Keyword: Habitat distribution, MaxEnt, Nepenthes aristolochioides

Judul: Kondisi Habitat dan Pola Sebaran Kantong Semar (Nepenthes sp.) di Gunung Bismo, Jalur Pendakian Deroduwur, Jawa Tengah
Abstrak: Nepenthes spp. (kantong semar) merupakan tumbuhan karnivora unik yang tersebar di palaeotropik dengan pusat keanekaragaman di zona biogeografi Malesia. Salah satu habitat Nepenthes yaitu Pegunungan Dieng termasuk Gunung Bismo. Tujuan dari penelitian ini adalah mengidentifikasi spesies, kondisi habitat, komposisi mangsa, dan pola sebaran Nepenthes yang berada di Jalur Pendakian via Deroduwur, Gunung Bismo. Metode yang digunakan adalah identifikasi spesies, identifikasi mangsa, dan analisis habitat. Spesies Nepenthes yang ditemukan di lokasi ini yaitu Nepenthes gymnamphora. Habitat N. gymnamphora berupa vegetasi hutan pegunungan sekunder beriklim basah pada ketinggian 1612-1629 m dpl dengan jenis tanah berupa andosol bertekstur lempung berliat dengan sifat asam dan kandungan bahan organik dan nitrogen tinggi. Mangsa utama N. gymnamphora yaitu invertebrata dari ordo Hymenoptera, Blattodea, dan Diptera. Populasi N. gymnamphora membentuk pola sebaran berkelompok.
Keyword: gunung bismo, nepenthes, habitat, pola sebaran, tumbuhan karnivora, carnivorous plant, distribution pattern

Judul: The Isolation of Silver (Ag) from Fixer Sludge with Electrolysis methode
Abstrak: with the variations concentration, electrode of carbon, and voltages. The aim of research are looking for the easiest and eficient electrolysis. Among of 272.79 ppm of silver (impurities) could be produced from electrolysis fixer which used 300 times maintain the film. For 400, 500, and 600 times electrolysis were produced recently 49.42, 137.04, and 55.22 ppm. Futhermore, it was increased to 220.00 ppm from 700 times. These were possible because of density the solutions. From the electrode of carbon, 68.2222 g Ag (impurities) could be processed from size 14 cm x 3 cm x 3 cm. The next results 41.2050 g and 43.7559 g from the sizes 16 cm x 3 cm x 3 cm and 18 cm x 3 cm x 3 cm. The reasoned of this part any faster reaction on the most litle electrode. By the way, from voltages variation, the processed showed that 47.4575 g of Ag (impurities) could be produced from 11 volt. It’s caused the bigest voltages are also the bigest kinetics power on the reactions. Sampel and product were analized by AAS. Consentration has potential to be indicator, because of the used 700 times was given trend high Ag (impurities) became increase optimally at 11 volt, and much sediment that is 47.4575 g. The best rendemen is 13.33%. The other finding is that the strength of the time and the voltages strongly enfluence the electrolysis shown by the bigger result on F(calculation) than that of the F(table).
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