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Abdul Muis Muslimin
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Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Papua Jalan Gunung Salju Amban, Manokwari 98314
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Jurnal Natural
Published by Universitas Papua
ISSN : 14121328     EISSN : 2746427X     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics
Jurnal Natural merupakan jurnal ilmu-ilmu matematika dan pengetahuan alam (basic science) untuk bidang: matematika, kimia, statistika, biologi, dan fisika termasuk ilmu terapan yang terkait seperti bioteknologi, kimia pangan, keanekaragaman hayati, dan lain-lain.
Arjuna Subject : Umum - Umum
Articles 160 Documents
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IDENTIFIKASI JENIS-IDENTIFIKASI JENIS-JENIS PAKAN ALAMI KUSKUS (PHALANGERIDAE) DI PULAU HARITI DISTRIK NAPAN WEINAMI KABUPATEN NABIRE PAKAN ALAMI KUSKUS (PHALANGERIDAE) DI PULAU HARITI DISTRIK NAPAN WEINAMI KABUPATEN NABIRE Fernando Duwiri; Jan H. Nunaki; Freddy Pattiselanno
Jurnal Natural Vol. 9 No. 1 (2010)
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v9i1.35

Abstract

Possum as a marsupial animal belongs to the family Phalangeridae are spread quite widely on the island of New Guinea. There are many types of possums found in many small islands of Papua, among others, in the coastal areas of Napan Wenami, Nabire. Hariti Island is one of the group of islands in the District of Napan Weinami. This study aims to explore the kinds of natural food of possums on the island Hariti. The results of the study shows that there were 21 plant species eaten by possums, consisted of 17 families, where as the family Moraceae have the largest number of species. Plant parts that are consumed is fruit (43%), leaf (24%) and a combination of leaf and fruit (33%).
MORPHOMETRIC VARIATION OF GENUS DOBSONIA FROM INDONESIAN PAPUA Aksamina M Yohanita; Bambang Suryobroto; Agustinus Suyanto
Jurnal Natural Vol. 9 No. 1 (2010)
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v9i1.36

Abstract

Studi morfometrik telah dilakukan dengan mengukur 32 karakter dari 176 spesimen Dobsonia dari Papua. Spesimen-spesimen Dobsonia diwakili oleh enam OTU, yaitu G, B, R, E, SP1, dan SP2. Analisis univariat menghitung seluruh spesimen dewasa yang terdiri dari 171 karakter badan dan sayap dan 176 karakter tengkorak dan gigi pada enam OTU tersebut. Selanjutnya digunakan uji-t dan PCA untuk menghitung G, B, dan R, sedangkan tiga OTU lain (E, SP1 dan SP2) tidak dihitung tetapi ikut diproyeksikan ke dalam scatter plot. Hasil uji-t (p<0.05) menunjukkan ada seksual dimorfisme pada D. minor dan D. beauforti. Pemisahan D. magna, D. minor, dan D. beauforti nyata pada karakter badan, sayap, dan gigi berdasarkan PCA. D. emersa terpisah dari spesies lainnya pada karakter badan dan tengkorak. Hasil scatter plot pada SP1 dan SP2 mengelompok dengan D. beauforti pada semua karakter (badan, sayap, tengkorak, dan gigi). Sebanyak 32 karakter yang diukur didapatkan karakter taksonomi yaitu WT, HB, dan TV untuk karakter badan; FA, TIB, dan DIG1P untuk karakter sayap; ONL, POW, PL, dan MH untuk karakter tengkorak; I2M2, M2M2, WM1, dan LM1 untuk karakter gigi. D. minor yang telah ditemukan di Pulau Waigeo tahun 2007 merupakan catatan baru penyebaran spesies ini, sebelumnya hanya tercatat di daratan utama Papua dan Pulau Yapen.
EKTOPARASIT ACARINA PADA KULIT SISIK ULAR PUTIH (MICROPECIS IKAHEKA) DARI MANOKWARI Keliopas Krey
Jurnal Natural Vol. 9 No. 1 (2010)
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v9i1.37

Abstract

Ectoparasites are species of parasites that live on the outer surface of the body of an animal. They grow and are very dependent on the life of the host. The acarina complex includes predaceous mites of infinite variation, mites associated with plants and other animals and using a variety of organic substrates as food. The result from the identification showed that acarina parasite on white snake comes from the order Parasitiformes. The acarina encountered in snake’s skin inhabit the dorsal scales in lanes or take advantage of the gaps between scales from the posterior head to the scales near the cloaca.
PEMBEKUAN SEMEN LELE DUMBO (Clarias Gariepinus BURCHELL 1822) SEBAGAI MODEL KRIOPRESERVASI SEMEN IKAN Lutfi Lutfi
Jurnal Natural Vol. 9 No. 1 (2010)
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v9i1.38

Abstract

Effect of four types of diluentss and four concentration of DMSO (5%, 10%, 15% and 20%) against the motility of African catfish sperm were evaluated after storage at freezing temperatures. The steps in preparation the 16 treatments combination of the diluents are preparation of diluents, mixing diluents with DMSO, packing of semen into 0.3-ml straw, equilibration of semen at 4 °C for 30 minutes, freezing of semen in nitrogen vapor liquid at a height of 6.5 cm for 10 minutes, and subsequently storage of semen in liquid nitrogen (-196 0C) for further analysis of post-thawing motility (PTM). The result showed that the highest level of motility of spermatozoa was in treatment P1D15 (45.7 ± 4.3%) and the lowest was in treatment P2D20 (14.5 ± 13.2%). The best diluent in this observation was diluents containing NaCl, KCl, CaCl2 and NaHCO3. The best concentration was DMSO 15%. While the best interaction between the concentration of DMSO diluents is P1D15 treatments containing NaCl, KCl, CaCl 2 and NaHCO3 with a combination of 15% DMSO concentration. The conclusion of the research is that diluents containing NaCl, KCl, CaCl2 and NaHCO3 with a combination of 15% DMSO concentration can be used in cryopreservation of African catfish semen.
THE DIVERSITY OF FRESHWATER FISHES IN HAYA, MAMBERAMO-PAPUA Robi Binur; Henny L. Ohee
Jurnal Natural Vol. 9 No. 1 (2010)
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v9i1.39

Abstract

Penelitian ini bertujuan untuk menambah data spesies dan kelimpahan ikan air tawar untuk digunakan dalam perencanaan konservasi di daerah Mamberamo. Survei dilaksanakan selama 18 hari dari 5 Februari sampai 24 April 2008 pada beberapa habitat, berupa sungai, kali, telaga, dan aliran-aliran air. Sejumlah 20 spesies yang tergolong ke dalam 17 genus dan 14 famili telah dikoleksi dan ditangkap menggunakan gillnet, cast net, hand net, long line dan tumbuhan beracun Deris sp. Dua catatan baru ditemukan dari Mamberamo, yaitu Chilaterina lorentzi yang sebelumnya hanya diketahui dari sungai Tawarin pada pantai utara Papua sekitar 200 km sebelah barat Jayapura dan kali Puive, anak sungai Pual dekat Vanimo, PNG; dan Monopterus albus (sejenis ikan introduksi) yang sebelumnya tidak diketahui ada di Mamberamo. Pada umumnya fauna ikan air tawar yang dikoleksi di Haya sekitar 70% mirip dengan catatan dari Dabra.
PENENTUAN NILAI DAN WAKTU OPTIMAL PADA OPSI AMERIKA YANG MEMBAYARKAN DIVIDEN Andi Fajeriani Wyrasti
Jurnal Natural Vol. 8 No. 2 (2009): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v8i2.41

Abstract

Opsi Amerika adalah salah satu jenis opsi yang memiliki ciri khusus, yaitu dapat diexercise kapan saja sebelum masa jatuh tempo hingga waktu jatuh tempo. Namun kendala muncul saat akan menentukan kapan waktu yang tepat untuk mengexercise opsi. Masalah penentuan waktu optimal untuk mengexercise opsi Amerika memerlukan ketelitian khusus, karena solusi eksaknya tidak dapat langsung ditemukan, terlebih lagi bila terdapat pembayaran dividen pada opsi tersebut. Masalah ini erat kaitannya dengan masalah free boundary. Dengan menggunakan Persamaan Differensial Parsial (PDP) untuk opsi Call Amerika dan untuk opsi Put Amerika yang merupakan modifikasi dari PDP Black-Scholes pada opsi Amerika yang membayarkan dividen, dan dengan simulasi numerik menggunakan Metode Elemen Hingga, akan dicari penyelesaian untuk masalah ini.
PEMBENTUKAN LAPANGAN FAKTOR DARI SUATU DAERAH INTEGRAL Tri Widjajanti; Dahlia Ramlan; Rium Hilum
Jurnal Natural Vol. 8 No. 2 (2009): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v8i2.42

Abstract

Ring of integers under the addition and multiplication as integral domain can be imbedded to the field of rational numbers. In this paper we make a construction such that any integral domain can be a field of quotient. The construction contains three steps. First, we define element of field F from elements of integral domain D. Secondly, we show that the binary operations in fare well-defined. Finally, we prove that f : D ® F is an isomorphisma. In this case, the polynomial ring F[x] as the integral domain can be imbedded to the field of quotient..
ANALISIS TITIK KESETIMBANGAN DAN KESTABILAN PENYEBARAN PENYAKIT MALARIA DI DISTRIK MANOKWARI BARAT BERDASARKAN MODEL EPIDEMIK SIR Fandy Fandy; Andi Fajeriani Wyrasti; Tri Widjajanti
Jurnal Natural Vol. 8 No. 2 (2009): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v8i2.43

Abstract

Stability and equilibrium of malaria’s epidemics in Manokwari Barat district based on SIR epidemic model will be discussed in this paper. The SIR epidemic model can be applied to make a model of endemic diseases like malaria. Based on this research, there are 2 types of the equilibrium of malaria’s epidemics in Manokwari Barat District, endemic and non endemic point.
PERCEPATAN TANAH MAKSIMUM DAERAH MANOKWARI BERDASARKAN TINJAUAN KASUS-KASUS GEMPABUMI Richard Lewerissa
Jurnal Natural Vol. 8 No. 2 (2009): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v8i2.44

Abstract

The research aimed to determine a Peak Ground Acceleration in manokwari based on Earthquakes cases from 1900 to 2006 using empirical earthquakes formula. This studi was finished at center of meteorology and geophysical agency in Jayapura Papua during September 2008. Result of Mcguirre dan Donovan method shown that in south manokwari have a maximum Peak Ground Acceleration in the amount 448,82 gal to 618 gal. While in north of manokwari have a intermediate peak gruond acceleration in the amount 100 gal to 125 gal. This research describable a temporary simple empirical study so that needed to advance reseacrh about Peak Ground Acceleration in region of manokwari regarding to survei of geology and stratigrafy condition in manokwari
POTENSI PLTMH PADA SALURAN PRIMER BENDUNG SUNGAI PRAFI KABUPATEN MANOKWARI Yulianus Rombe Pasalli
Jurnal Natural Vol. 8 No. 2 (2009): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v8i2.45

Abstract

This research was conducted in order to provide data, information and the design of hydraulics potential-based PLTMH (microhydro power plant) of the Prafi rivers. It is expected that the work will contribute thinking and planning for the Manokwari Government and those concerned in microhydro power plant installation to tourism and camp areas. The research was carried out by measuring data on the hydraulics potentials of debit and head. Followed with site condition observation of the microhydro power of tourism and camp areas. The collected data were then analyzed as bases for the microhydro power design emphasizing on the civil work, mechanical work, and the electric installation for microhydro power.The results obtained were civil work design of microhydro power with designed debit of 0,455 m3/s, and 3 m head, and generated power of 10 kW. The civil work design include intake submerged with size 0,58 m x 0,65 m, trashrack size 0,68 m x 0,85 m, material from strip iron 3 mm x 30 mm, head race size 0,5 m x 0,91 m, from the couple of crevice stone, inclined 1:500, silt basins size 1,5 m x 2 m, depth 2 m, made of the couple of crevice stone. Spillway size 0,4 m x 1,8 m, spillways is made above turbine pool, turbine pool is planned from concrete with diameter 0,80 m depth 1 m, draft tube is used PVC pipe, kind: AW, thick grey, diameter 8 inch, tail race there are 2 kind of tail race, from crevice stone and and soil, power house is planed with size 4 m x 5 m, foundation: couple crevice stone, pool, slop and concrete ring balk, wall concrete brick, floor white floor tile and roof iron sheeting. The mechanical installation using by turbine Propeller Open Flume with electric power effectif 10 kW or the specific speed 927 (rpm, HP, m), speed 999,76 rpm, with total efficiency 74,6 %, the fulley diameter (Dpt) 262,5 mm, Turbine Speed (Nt) 1000 rpm, for electric installation using by generator induction AC generator 10 kW, 220/380 Volt, 50 Hz, speed 1500 rpm, 4 poles, cos φ 0,8, and efficiency 0,9.

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