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Jurnal Penelitian Sains
Published by Universitas Sriwijaya
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Jurnal Penelitian Sains (JPS) MIPA UNSRI merupakan wahana komunikasi ilmiah di bidang sains serta lintas ilmu yang terkait; diterbitkan sejak 1 Oktober 1996 oleh UP2M FMIPA Universitas Sriwijaya. Jurnal ini berisikan tulisan atau karangan ilmiah dalam berbagai bidang tersebut yang diangkat dari hasil penelitian, survei, atau telaah pustaka, yang belum pernah dipublikasikan dalam terbitan lain.
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Articles 8 Documents
Search results for , issue " Vol 18, No 2 (2016)" : 8 Documents clear
Komunitas Makrofauna di Kawasan Mangrove Desa Tanjung Leban dan Bukit Batu, Bengkalis Mahatma, Radith; Hairijon, Hairijon; Afrimaini, Afrimaini
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Information on macrofauna community from mangrove areas in Indonesia is still scarce. The objective of this research were study the abundance and community structure of macrofauna in mangrove area of Tanjung Leban and Bukit Batu Villages, Bengkalis Region, Riau Province. Macrofauna were sampled in September 2014 using corer from 10 plot located in mangrove areas of Tanjung Leban and Bukit Batu Villages. Each plot were sampled three times as a replication. The macrofauna which were collected were classified to Nematoda, Gastropoda, Copepoda, Bivalvia, Polychaeta, Oligochaeta, Tardigrada, Insecta, Holothuroidea, Ostracoda and Syncarida. The average of macrofaunal abundance was 1435 ind./m2 with Nematoda, Gastropoda, and Copepoda as the most dominant taxa. Analysis of ANOVA indicated that the abundance of macrofauna between the plot inside each mangrove area were not statistically different (Tanjung Leban F = 0,96, Bukit batu F = 0,86). Additionally, the Student’s t test indicated that the abundance of macrofauna between mangrove area in Tanjung Leban and Bukit Batu were not statistically different (t = 1,92).
Variasi Rasio Amonium dan Nitrat terhadap Perkembangan Embrio Somatik Bawang Putih (Allium sativum) secara In Vitro Wardana, Singgih Tri
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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This research was aimed to conduct different NH4 + : NO3 -ratios on the development of somatic embryos of garlic (Allium sativum) by in vitro technique. This research used complete random design with four levels of NH4 + : NO3 -ratios, i.e. 1:2, 1:3, 1:4, and 1:5.The cell suspension culture used MS medium with 0,25 mg l-1 BAP. The results showed that the different NH4 + : NO3 -ratios resulted significant effect on the development of somatic  embryos ( globular, scutelar, and coleoptiler stages).1:3 ratio of NH4 + : NO3 -was optimum to improve the development of somatic embryos.
Studi Pendahuluan: Inventarisasi Amfibi di Kawasan Hutan Lindung Bukit Cogong II Setiawan, Doni; Yustian, Indra; Prasetyo, Catur Yuono
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Which one big islands in Indonesian was have high biodiversity value is Sumatera Island. There was Amphibian groups. Amphibians class is one of the constituent components of the ecosystem which has a very important role, both ecologically and economically. Based on preliminary studies in the area of Protected Forest Cogong II Hill has been done survey in October 2015 showed the extent of damage, it's evident from the many of rubber plantation land clearing by the society which can impact negatively on the environment, especially the habitat of amphibian. So, inventory of amphibians in the Cogong Hill II protected forest areas need to be done. Observation of amphibian directly through using Visual Encounter Survey (VES) method. The results of the survey was found 10 species in to 5 families and 1 ordo. There is Bufonidae family : Bufo asper, Bufo melanosticus, Bufo biforcatus, Ranidae family is Hylarana baramica and Rana chancolnota, Dicroglossidae family is Fejevarya limnocharis, Fejevarya cancrivora, Limnonectes sp., Rhacophoriidae family is Polypedates leucomystax and Microhylidae family is Kaloula baleata. Based on IUCN status category from 10 amphibians species was found in the region, all species have Least Concern Status.
Analysis of Relation between Fluorescence Intensity and Ripeness Levels of Loosed Palm Oil Fruits Shiddiq, Minarni; Umami, Reza
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Fluorescence imaging telah dikembangkan sebagai metode nondestruktif yang berpotensi untuk penilaian kualitas buah dan sayuran. Grading tandan buah segar (TBS) kelapa sawit sangat penting dilakukan untuk mendapatkan CPO yang berkualitas tinggi di perusahaan kelapa sawit. Fluoresensi imaging belum secara menyeluruh digunakan untuk mengeksplorasi grading kelapa sawit. Penelitian ini bertujuan untuk mempelajari intensitas fluoresensi pada buah kelapa sawit yang brondolan dan hubungannya terhadap tingkat kematangan buah menggunakan sistem pencitraan fluoresensi. Sistem terdiri dari laser dioda 650 nm, kamera monokrom CMOS dan filter warna. Filter yang digunakan adalah warna jingga karna dieksitasi oleh laser dioda merah. Sampel adalah buah segar kelapa sawit brondolan dari varietas Tanera bernama Marihat dan Topaz yang diambil pada bagian buah luar TBS kelapa sawit. Sampel memiliki tiga tingkat kematangan yaitu mentah, matang, lewat matang yang setiap tingkat nya terdiri dari 5 buah. Kategori kematangan ditentukan oleh pemanen yang berpengalaman. Buah yang disinari direkam oleh kamera dan menghasilkan intensitas gray menggunakan software imageJ yang dibandingkan pada tiga tingkat kematangan. Konsenstrasi antosianin pada lapisan mesocarp buah Marihat diukur sebagai perbandingan. Hasil penelitian menunjukkan bahwa intensitas fluoresensi tertinggi diperoleh pada buah lewat matang, diikuti oleh matang dan mentah. Intensitas gray pada buah Topaz lebih tinggi 5-11% untuk setiap tingkat kematangan. Hal ini dapat disebabkan konsentrasi antosianin jenis Topaz lebih tinggi dari Marihat. Hal ini memerlukan penelitian lebih lanjut.
Saponin Biji Klabet pada Organ Reproduksi Tikus Jantan Sprague Dawley® Nita, Sri; Habisukan, Ummi Hiras; Zen, Nyayu Fauziah
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Fenugreek seed saponin is one alternative of antifertilitas medicinal plants. Research purposes is to determine the effect of the fenugreek seeds saponin againts the reproductive organ, that is weight and histological structure of the testis and epididymis Sprague Dawley® rat. Research design using randomized design complete. The control group was given distilled water, the treatment group were given fenugreek seed saponin with doses of 40, 80, & 120 mg/kg bw. Treatment is administered orally 1x/day for 24 days. Award saponin start dose of 40 mg/kg bw can reduce the weight of the testes and reduce the size of the diameter of seminiferous tubules. Thick germ cells begin to be affected at higher doses, 120 mg/kg bw. Epididymis weight is reduced significantly compared to the control start at dose 80 mg/kg bw and giving a higher dose, 120 mg/kg bw significantly further reduces the weight of the epididymis. Saponin administration starting dose of 80 mg/kg bw already significantly reduced the thickness of the epithelium of the epididymis. Giving a higher dose of 120 mg/kg bw increasingly signifcant cause epididymal epithelium thickness thinner. It can be concluded that the administration of saponin fenugreek seeds caused a reduction in weight and histological changes in the testis and epididymis structure of rat Spraque Dawley®
Pemanfaatan Hewan Sebagai Obat Tradisional oleh Etnik Lom di Bangka Afriyansyah, Budi; Hidayati, Nur Annis; Aprizan, Hapis
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Knowledge about the use of animals as a traditional medicine is benefit to society and must be saved. This knowledge can be used as a source of reference for researchers in the development of science and alternative ideas in the present. The purpose of this study were reveal diversity of animal drug ethnic Lom in Bangka and Lom ethnic knowledge traditional in Bangka about diversity of animal drug and used of animals as a traditional medicine. Research was conducted from January to May 2015 in Air Abik, Pejem, and Mapur village. Methods used in this research were purposive sampling (determine informans), interview and direct obeservation. Result showed that ethnic Lom used 24 species animals as medicine from 10 class in traditional medicine. The animal species most used is from the class of mammals (38%). Seen from habitat, animals are used as traditional medicines are mostly terrestrial animals (44%) are living wild in the woods. The most used animal that is part of the body (76%). Results of grouping by type of disease and the type of animals that have properties as a medicinal ingredient, there were 18 types of diseases that can be cured (medical or non-medical disease). Ethnic Lom had a good knowledge about the diversity of animal species and benefit of drugs, but this knowledge is declining and began to be forgotten by the people of ethnic Lom. The results of the interviews and observations in the field showed animal species of cacing tanah (Pheretima sp.) and undur-undur (Myrmeleon sp.) has the potential to be developed, not only as a animals drug used ethnic Lom communities but also can improve the economy of communities in the region.
Verifikasi Dosimetri Teknik Stereotactic Body Radiotherapy (SBRT) Metastasis Tulang: Studi Kasus Menggunakan Fantom Homogen dan Inhomogen Asril, Yosi Sudarsi; Wibowo, Wahyu Edy; Pawiro, Supriyanto Ardjo
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Kanker menyebabkan 13% dari total semua kasus penyebab kematian, dan matastasis tulang adalah komplikasi umum dari kanker yang terjadi diatas 40% pada pasien onkologi. Sekitar 70% metastasis akan melibatkan tulang belakang. Stereotactic body radiotherapy (SBRT) adalah salah satu teknik yang dapat menangani metastasis tulang karena dapat memberikan dosis radiasi tinggi pada volume kecil dengan margin yang sangat rapat. Dalam perencanaan radioterapi untuk foton energi tinggi sering tidak sesuai dalam memperkirakan distribusi dosis dengan keberadaan material tidak homogen. Oleh karena itu dibandingkan hasil dosis pada fantom homogen (CIRS Model 002 H9K) dengan fantom inhomogen (CIRS Model 002 LFC) menggunakan tiga dosimeter, yaitu mikrochamber exradin A16, film gafchromic EBT3, dan TLD LiF: Mg, Ti rods. Hasil yang didapatkan dari pengukuran kedua fantom membuktikan bahwa film gafchromic EBT3 merupakan dosimeter terbaik dalam pengukuran dosis pada lapangan kecil dengan masing-masing deskripansi -0,30% pada fantom homogen dan -1,57% pada fantom inhomogen. Mikrochamber juga memperlihatkan kemampuannya dengan mendapatkan deskripansi tidak begitu jauh dengan film gafchromic EBT3 yaitu -0,52% pada fantom homogen dan -3,87% pada fantom inhomogen. Sedangkan menggunakan TLD LiF:Mg, Ti rods masing-masing deskripansinya -11,96% dan -13,88% pada fantom homogen dan inhomogen.
Keterkaitan Jumlah Daerah Termutasi pada Gen β-globin dengan Indeks Korpuskular Pembawa Sifat β-thalassemia Priyambodo, Priyambodo; Nur Handayani, Niken Satuti
Jurnal Penelitian Sains Vol 18, No 2 (2016)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Thalassemia is a genetic dissorder caused by point mutation on the globin gene that decreasing the corpuscular index on thalassemian, included the carrier of thalassemia. Three to five percents of Indonesian is thalassemia carrier, β- thalassemia is the most common type. This research aimed to identify the relationship between the number of mutated region on β-globin gene and the decreasing of corpuscular index on β-thalassemia carrier. The data was collected during 2012 to 2014 in Yogyakarta. Hematological analysis was performed by corpuscular index included mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), and mean corpuscular haemoglobin concentration (MCHC) in Prodia Laboratory. Molecular analysis was performed by the polymerase chain reaction-single stand conformation polymorphism (PCR-SSCP) method in Laboratory of Genetics and Laboratory of Falitma, Biology Faculty, University of Gadjah Mada. Of a total of 96 individual screeaned, there were 9 suspects β-thalassemia carrier with 1 β-globin gene mutated region showed the average of MCV 63,1 fl, MCH 19,76 pg and MCHC 32,34 g/dl. Seven suspects β-thalassemia carrier with 2 β-globin gene mutated regions showed the average of MCV 61,16 fl, MCH 19,74 pg, and MCHC 32,3 g/gl. One suspect β-thalassemia carrier with 3 β-globin gene mutated regions showed the average of MCV 64,2 fl, MCH 19,5 pg, and MCHC 30,4 g/dl. The number of β-globin gene mutated region was not the main factor of decreasing the corpuscular index on β-thalassemia carrier.

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