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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 6 Documents
Search results for , issue " Vol 21, No 1 (2019)" : 6 Documents clear
Komposisi Spesies dan Struktur Komunitas Ikan di Kawasan Ekosistem Mangrove Muara Sungai Musi Kabupaten Banyasin Sumatera Selatan Anggraini, Juaini; Agustriani, Fitri; Isnaini, Isnaini
Jurnal Penelitian Sains Vol 21, No 1 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

The mangrove forests is the most important area that must be maintained. Mangrove forests can be covered by vegetation such as Avicennia , palm, and the other that has fundamental in preserving the fishery resources. Fishery resources are classified as a renewable but limited by natural factors and non-natural factors. This study was aimed to analyze species composition, community structure and fish size composition and measure estuary parameters at Musi river. This study was conducted on December 2015 at the estury of Musi river ini Banyuasin, South Sumatera. Survey method was used in this study by measuring the length and weight of the fish cathced by drift gill net. The results of this study found 24 species of fish. Overall community structure at station 2-5 and has a lower category because no one dominates, whereas at station 1 had a high dominance of 0.82 but with the amount of catches was only 2 types by the number of species is not too many. The length and weight of Eleutheronema tetradactylum: 23.9-28.6 cm (26%), 103.5-202.4 g (34%), Engraulis grayi: 11.4-13.1 cm (15%), 6- 22.7 g (37%), Pseudocienna amovensis: 17.9-19.5 cm (24%), 60.1-75.7 g (24%), Setipinna melanochir: 20.8-21.6 (17%,), 58.4-68.7 g (17%). Water quality parameters for temperature, pH, salinity and water stream at the estuary of Musi river were categorized in good condition for aquatic biota.
Kajian Pola Penggunaan Antibiotik Profilaksis Hubungannya Dengan Angka Kejadian Infeksi Daerah Operasi (IDO) Pada Pasien Bedah Digestif Di Rumah Sakit Swasta Amelia, Kiki; Sumarny, Ros; Hasan, Delina; Komar, Hafidh
Jurnal Penelitian Sains Vol 21, No 1 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Abstract: Prophylaxis antibiotics are given to prevent surgical site infection (SSI). This study aimed to examine the pattern of the use of prophylaxis antibiotics on the incidence and SSI risk factors. This study was an observational analytic study with a cross sectional design. SSI observation was directly observed in postoperative wounds, the first in the treatment room at the time of dressing change, the second observation was carried out in the surgical clinic at the time of repeated control. The total sample during the study period was 57. The results of this study showed the incidence of SSI in digestive surgery patients was 17.5% (10 out of 57 samples). The most widely used prophylaxis antibiotics ware the third generation cephalosporin group ceftriaxone (96,5%)
Uji Stabilitas Sensor DT-Sense Color Untuk Mendeteksi Warna dan Sensor MQ137 Untuk Mendeteksi Gas Ammonia Berbasis Mikrokontroler Napitupulu, Fereddy Yulianus; Fauziyah, Fauziyah; Surbakti, Heron
Jurnal Penelitian Sains Vol 21, No 1 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

This study has conduct with  origami  color paper and ammonia gas to test the stability that serves to DT-Sense color sensors and MQ137 ammonia gas sensors. Method of this study is experimental laboratory scale. DT-Sense color sensor placed on material origami color paper test and measurement of three repetitions and then compared the results obtained against the database default provisions. The results of the RGB color by using origami color paper compared with the data base color like a hot pink, black, yellow, red, orange, green liner, royal blue, dark green and brown saddle with stability range digital tools 0-255 number. Measurement of liquid ammonia evaporation with a content of 25% with a different sample preparation. Measurements were performed for 250 seconds (s). Based on the observations of the ammonia concentration value detected by the sensor MQ137 related with the sensor voltage which is R = 0.9996 and stability of concentration of ammonia and ADC values have a related with R = 1. Based on observations sensr MQ137 which has been designed only able to detection of ammonia concentration of +/- 1300 ppm and MQ137 sensor voltage with +/- 5 volts.
Isolasi Dan Identifikasi Jamur Simbion Pada Karang Lunak Sinularia polydactyla Di Perairan Pulau Tegal Dengan Menggunakan Media Yang Berbeda Putri, Reftika Ramona; Rozirwan, Rozirwan; Agustriani, Fitri
Jurnal Penelitian Sains Vol 21, No 1 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Soft coral is a marine animal that does not have a spine that lives in shallow water. Soft corals are able to interact with microorganisms such as fungi. Symbiotic fungi from the sea are microbes that are rich in bioactive natural products and secondary metabolites. The purpose of this study was to isolate and identify symbiotic fungi with isolated soft corals from the Sinularia polydactyla type and determine the type of media that produced the most symbiotic fungi in the Sinularia polydactyla soft coral. The research method in isolating fungal symbionts was carried out using the Direct Planting method. This study uses 3 media including PDA (Potato Dexktrose Agart), HDA (Host Dekxtrose Agart), and MEA (Malt Extract Agart). The results of this study showed that symbiotic fungi with Sinularia polydactyla soft coral were isolated in 7 isolates, with 3 isolates identified as Aspergillus flavus, 2 isolates identified as Penicillium sp., and 2 isolates identified as Aspergillus niger. The media that produced the most symbiotic mushrooms were PDA media, where 7 isolates were found, there were 3 isolates that grew on PDA media, 2 isolates on MEA media, and 2 other isolates on HDA media.
Analisis Perubahan Luasan dan Kerapatan Mangrove Menggunakan Data Citra Satelit Spot di Pesisir Teluk Pandan Kabupaten Pesawaran Provinsi Lampung Irawan, Andy; Isnaini, Isnaini; Agussalim, Andi
Jurnal Penelitian Sains Vol 21, No 1 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Abstract

Monitoring of mangrove forests periodically is important  to know the change of area coverage and the mangroves condition in the Teluk Pandan coastal of  Pesawaran District of Lampung Province. This research aims  to analyze changes of mangrove area and density in 2010 – 2015, to analyze the mangroves condition  also the correlation between mangrove density from the satellite image with the mangroves density  from the field and its accuration level in mangrove of Teluk Pandan coastal. This research was conducted in September 2015 – March 2016 using satellite image SPOT 4 in 2010 and SPOT 6 in 2015. This research used supervised method with a ground check  that has high accuration. The results showed that there was an increasing of mangroves density and also mangrove area coverage around 9 ha. The condition of mangroves in the coastal of Teluk Pandan categorized as good condition and Rhizophora apiculata was the dominant species with the highest IVI (Important Value Index). The correlation between NDVI (Normalized Difference Vegetation Index) values with the density of mangroves in the field has a high relationship with a R2 value of 0.9177. The accuration level of the image classification was 88.88% indicated  the good  accuracion level of the spatial distribution of mangroves.
Struktur Komunitas dan Kelimpahan Fitoplankton serta Keterkaitannya dangan Paramater Fisik Kimia di Perairan Pesisir Banyuasin Kabupaten Banyuasin Arazi, Ridwan; Isnaini, Isnaini; Fauziyah, Fauziyah
Jurnal Penelitian Sains Vol 21, No 1 (2019)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (356.627 KB)

Abstract

Changes in water quality is closely related to the abundance and phytoplankton community structure so that the presence of phytoplankton in the waters can provide information about the condition of a body of water. The purpose of this study was to evaluate the physical and chemical parameters of coastal Banyuasin, analyze the abundance and community stucture of phytoplankton abundance of phytoplankton and analyzing linkages with physico-chemical associations with chemical physics parameters in the coastal waters of South Sumatera Banyuasin was held on June 15, 2015. The determination of the research station using purposive sampling method. Phytoplankton samples taken using plankton nets (Plankton net) with a mesh size of 25 μm. Identification of phytoplankton are carried out in the laboratory by observing under a microscope and using phytoplankton identification book. The influence of enviromental parameters on the abundance of phytoplankton processed by PCA using STATISTICA software. The result showed that the phytoplankton were found composed of there classes which Bacillariophyceae, Dinophyceae and Cyanophyceae. The most common genus is Skeletonema. Value abundance of phytoplankton ranged from 78 cells/1-329 cells/1, Diversity Index (H’) ranged from 0,377 to 1,785, Index Uniformity (E) ranges from 0,234 to 0,772, and the index Dominance (C) ranges between 0214-0851. Principal Component Analysis of phytoplankton abundance correlated positively with nitrate (NO3+), salinity and pH, whreas phospate (PO4+), DO, temparature, brightness and speed of flow showed a negative correlation.

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