99 research outputs found
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Variety of Pests and Arthropods in Organic and Non-organic Rice Cultivation in South Sumatera
Full text linkThe system of cropping pattern and the use of fertilizer will be different to the diversity of pests and arthropods in paddy fields. The objective of this research is to determine the pest and arthropod pests in non-organic and organic paddy in paddy fields. The applied method is the plant observations that attacked pests by using 1 ha of organic paddy field and 1 ha of non-organic paddy field. The catching arthropods is the way to observed the insects by using insect nets, trap holes, yellow trays and light traps and analyzing the result by using the Shannon-Wiener equation. This research was undertaken on April 2016 to August 2016 in Sumber Suko village, BK. VIII, Gumawang district, regency of Ogan Komering Ulu east, South Sumatera. The result of this research pointed out that the variety of pest paddy crops is relatively diverse both in non-organic and organic paddy. The abundance and variety of arthropods in organic agriculture is higher at 1.39 than non-organic agriculture at 0.87 so it can affect the extent of pest attacks on organic paddy. The ecosystem of organic paddy. The ecosystems of organic paddy is more complex in the diversity of arthropods and the abundance of microorganisms than non-organic paddy systems
Diversity of the Aquatic Vegetation in the Irrigation Canals of Mulya Sari village, Banyu Asin Regency, South Sumatra
Full text linkMulya Sari village in Banyuasin Regency is a sub-optimum tidal land with sulfuric acid characteristics which utilize irrigation canal to provide water used in household, fishing, and agriculture. Information on the diversity of aquatic vegetation in the Mulya Sari village is still not much. The purpose of this research to identified and analyzed the diversity aquatic vegetation in the irrigation canal of Mulya Sari village. The method used in this research is purposive sampling method. Aquatic vegetation data are collected trough direct study and using the square of the wooden frame size of 1 m x 1 m (transect methode), then observation are made for identification. Environmental condition in the irrigation canal is still good, with the environmental parameters in the form of Temperature, DO, BOD, TSS, TDS and pH still meet environmental quality standard. The irrigation canal in Mulyasari village was found 7 species of aquatic vegetation belonging to 3 class of Liliopsida, 3 class Monocotyledoneae, and 1 class of Dicotyledoneae, with the value of diversity index between 0,57 – 1,53 and low diversity. Corellation Pearson between water quality and sediment characters of diversity has shown Temperature, DO, BOD, TDS and pH have corellation to diversity
Comparison of CTAB Method and Wizard Genomic DNA Purification System Kit from Promega on DNA Isolation of Local Varities of Rice of South Sumatera
Full text linkResearch in the molecular field requires DNA with a high degree of purity. Local rice varieties of South Sumatra have different leaf texture so that in isolation process to obtain DNA with high purity level required the right method. This study aims to compare the quality and quantity of purity of local rice insulation of local rice varieties of South Sumatra with different methods of CTAB and Wizard Genomic DNA Purification System Kit from Promega. The research was conducted from August 2015 to December 2015 at the Laboratory of Microbiology and Genetics and Biotechnology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Sriwijaya University. The method used is DNA isolation method Wizard Genomic DNA Purification System Kit from promega and CTAB. Based on research that has been done result of DNA visualization showed that DNA isolate CTAB method still have smears while DNA isolate method of Wizard Genomic DNA Purification System Kit from promega not. The average DNA isolate concentration of Wizard Genomic DNA Purification System Kit method is A260 / 280 = 1.853 μg / ml. The average DNA isolate concentration of CTAB method is A260 / 280 = 1,705 μg / ml. Isolation of Rice DNA of local variety of South Sumatera using DNA method of Genomic DNA Purification System Kit from promega has higher quality and quantity compared to CTAB method
The Characteristic Function Property of Mixture Negative Binomial-Exponential Distribution
Full text linkThis paper introduces a new distribution by mixing the negative binomial distribution and exponential distribution namely negative binomial-exponential (NB-E) distribution. In is given the probability distribution function of NB-E distribution and its characteristic function by using Fourier-Stieltjes transform. In addition we present the some properties of characteristic function from NB-E distribution
Factors of Medicinal Plants Users as Alternative Medicinal in Indonesia
Full text linkTraditional medicines are the cultural heritance of Indonesian nation that should be preserved and developed in order to support the society’s health development and to improve the society’s economy. This research was aimed to figure out the society’s behaviors in using traditional medicines and the dominant factors that influence them in using traditional medicines. This research is a non-experimental research, with analytical survey method and cross-sectional approach. Fifty percent of the existing districts (16 districts) were selected randomly to serve as the sample. The districts selected included the districts of Muara Kuang, Tj. Raja, Lubuk Keliat, Payaraman, Indralaya, Pemulutan, Pemulutan Selatan and Rantau Panjang, totaling eight. The number of villages selected was 66. From these villages, the research sample was selected using stratified random sampling technique, and a sample of 400 people was obtained. The analysis was conducted in a bivariate manner with chi square test. The results showed that the respondents were motivated to use traditional medicines through (a) predisposing factors perceived sickness; (b) enabling factors, including economic level, location of domicile, type of complaints, insurance and distance to health facilities; and (c) reinforcing factors, including family support and traditional medicine promotion. Serving as the predicting factors in the traditional medicine use were the variables perceived sickness, type of complaint, distance to health facilities and traditional medicine promotion, with the variables occupation, insurance, education, family support, domicile and income serving as the confounding variables
Morphological Diversity of Rattan on The Three Conservation Areas In South Sumatera
No full textResearch on the diversity of rattan morphology has been conducted in three forest conservation areas in South Sumatra i.e. Bentayan Wildlife Reserve, Bukit Cogong and Gunung Raya Wildlife Reserve. This study aims to analyze the diversity of rattan morphology in three protected areas in South Sumatra. This research uses purposive sampling method by exploring the forest area. The results showed that in the Bentayan Wildlife Reserve area were found 3 species of 3 genera while in Bukit Cogong Protected Forest were found 9 species of 3 genera and in the Bentayan Wildlife Reserve area were found 5 species of 3 genera. The morphology of rattans species in the three regions have different shapes and colors of thorns on the stem, the top and the bottom surfaces of the leaves, the climbing organ and the growth nature. The same rattan species were being found in the same of two or three locations, having morphological differences in diameter and length of the stem
Flexibility of Custom Design over Simplex Lattice Design in Co-Processed Excipient Formulations
Full text linkCustom design is a modeling technique that puts forward the custom formula on the pharmaceutical formula optimization. The components may be adjusted to the formula constraints. However, these designs sometimes do not accommodate all the components used. In addition, its effectiveness is not necessarily optimal when compared with standard designs such as simplex lattice design (SLD). This study used microcrystalline cellulose PH 101 (MCC PH 101), lactose and K30 kollidon which were computerized. Custom design and SLD compared with Design Expert software based on previous research data. Tablet hardness and tapping index were used as test parameters to assess design effectiveness. The optimal formula result obtained was MCC PH 101: lactose: kollidon K30 80% each: 10%: 10% for SLD. This value differs from custom designs that get results in the absence of lactose proportions. Custom design prediction results actually get better value than SLD for tablet hardness and tapping index
Adsorption of Copper from aqueous solution by chitosan using molecular imprinting technology
Full text linkIn nature chitosan is a plentiful polymer with high heavy metal ion uptake capacity due to chitosan’s functional groups that chelate with the positive surfaces of heavy metal ions. In this study, epichlorohydrin was used as a crosslink to prepare the copper-imprinted chitosan as a pattern to enable the selectivity property and increase adsorption capacity. The effects of the cross-linker, PH, initial concentration and time were examined in this study to identify the optimum amount of each to remove copper metal ions from waste water by imprinted chitosan. This composite was characterized by Fourier-transform infrared spectroscopy (FTIR) test to determine the existence of copper ions in chitosan crosslinked with epichlorohydrin. Scanning electron microscopy (SEM) tests were also done to compare the surfaces of crosslinked chitosan and the removal of copper by imprinted chitosan. PH adsorption was tested from 3 to 7 and the initial concentration and time investigated were between 10 and 100 mg/l and 0 and 120 minutes respectively. The maximum capacity to adsorb was found to be at PH 7, initial concentration of 100mg/l at 90 minutes with 0.1 gr chitosan. Ultimately, the maximum adsorbent amount achieved for effective Cu(II) removal was 74.37 mg/g