Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 56-75 of 471
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Caharacteristics of a Metal-Dielectric-Metal slab waveguide with embedded metallodielectric photonic crystal and its optimization at low THz optical frequency
(2011)In this paper we report the results of our systematic numerical study on the characteristics of a-metal-dielectric-metal slab waveguide with an embedded ID metallodielectric photonic crystal using finite difference time ... -
Calculation of The Direct Potential in Electron-Helium Scattering Using Non-Orthogonal Laguerre L2 Basis
(2010)In this paper first we consider a helium atom in LS coupling configuration. We use a product of a radial function, a spherical harmonic and a spin function as a single-electron orbital function, which are used to build the ... -
Capability of Streptomyces spp. in Controlling Bacterial Leaf Blight Disease in Rice Plants
(2012)Problem statement: Bacterial Leaf Blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo) is the most damaging disease in lowland rice growing areas in Indonesia. Streptomyces spp. have been known as a producer of ... -
Catechin-3-O-rhamnoside chain extender units in polymeric procyanidins from mangrove bark
(2010)Acid-catalysed cleavage of ‘purified’ condensed tannin isolates from Bruguiera gymnorrhiza (tancang) bark in the presence of phloroglucinol as a capture nucleophile gave, in addition to the expected procyanidin- and ... -
Cellular Mechanism of the Cytotoxic Effect of Extracts from Syzygium polyanthum Leaves
(2014)The research objective is to obtain the cellular mechanism(s) of Syzygium polyanthum leaves for its development into commercial herbal product for certain degenerative diseases. The approach was to conduct activity-guided ... -
Challenge : The Order of Jarwo (COJ)
(2008) -
Characteristics of Pellet from Oil Palm and Jatropha Residues
(2010)To utilize residue from oil palm and Jatropha processing, pellet making was performed and the pellets obtained were characterized in this study. Oil palm mesocarp fi ber and Jatorpha press cake (residue after squeezing ... -
Characterization and Purification a Specific Xylanase Showing Arabinofuranosidase Activity from Streptomyces spp. 234P-16
(2009)Streptomyces spp 234P-16 producing xylanase was isolated from soil sample from Padang, West Sumatra, Indonesia. Crude enzyme (produced by centrifuging the culture at 14000 rpm for about 5 minutes) and purified xylanase ... -
Characterization of aldehyde ferredoxin oxidoreductase gene defective mutant in Magnetospirillum magneticum AMB-1
(2003)A non-magnetic mutant of Magnetospirillum magneticum AMB-1, designated as NMA21, was generated by mini-Tn5 transposon mutagenesis to identify genes involved in bacterial magnetic particle (BMP) synthesis. Alignment of the ... -
Characterization of Redistilled Liquid Smoke ofOil-pabn Shells and its Application as Fish Preservatives
(2013)Oil-pahn shells as an agricultural waste can be pyrolysed producing gaseous material that can be condensed into liquid smoke. Redistilled liquid smoke has been proven effective as fresh fish preservative due to its ... -
Characterization ofRedistilled Liquid Smoke ofOil-pahn Shells and its Application as Fish Preservatives
(2013)Oil-pahn shells as an agricultural waste can be pyrolysed producing gaseous material that can be condensed into liquid smoke. Redistilled liquid smoke has been proven effective as fresh fish preservative due to its ... -
Characterization ofRedistilled Liquid Smoke ofOil-pahn Shells and its Application as Fish Preservatives
(2013)Oil-pahn shells as an agricultural waste can be pyrolysed producing gaseous material that can be condensed into liquid smoke. Redistilled liquid smoke has been proven effective as fresh fish preservative due to its ... -
Chitinolytic Bacteria Isolated from Chili Rhizosphere: Chitinase Characterization and Its Application as Biocontrol for Whitefly (Bemisia tabaci Genn.)
(2010)Problem statement: Chitin, a common constituent of insect exoskeleton, could be hydrolyzed by chitinasc. The research was conducted to screen chitinolytic rhizobacteria isolated from rhizosphere of chilli pepper and to ... -
Classification model for hotspot occurrences using a decision tree method
(2011)Forest fires in Indonesia mostly occur because of errors or bad intentions. This work dcmon~trates the application of a decision tree algorithm, namely the C4.5 algorithm. lo develop a classification model from forest fire ... -
Classification Model For Hotspot Occurrences Using Spatial Decision Tree Algorithm
(2013)Developing a predictive model for forest fires occurrence is an important activity in a fire prevention program. The model describes characteristics of areas where fires occur based on past fires data. It is essential as ... -
Cloning of a gene encoding protein belonging to abc transporter involved in bacterial magnetic particle synthesis in magnetospirillum magneticum AMB-1
(2009)Magnetospirillum magneticum AMB-1 synthesizes intracellular magnetic particles, magnetite (Fe3O4), enveloped by membrane called magnetosome under micro-aerobic conditions. Initial study of random transposon-based mutagenesis ... -
Cloning, DNA Sequence, and Expression of Aeromonas caviae WS7b Chitinase Gene
(2003)A chitinase-producing bacterium, designated WS7b, was isolated from a soil sample obtained from a black-pepper plantation on Bangka Island, Indonesia. Fatty-acid methyl-ester analysis indicated that the isolate was Aeron~onas ... -
Cloning, Homological Analysis, and Expression of DNA Pol I from Geobacillus thermoleovorans
(2008)DNA POLI gene from Geobacillus thermoleovorans (DNA POLI ITB) was cloned and overexpressed in Escherichia coli using two steps PCR aplification. The gene was isolated and sequenced to consist of 2628 nucleotides that encode ... -
Combined solitons in generalized coupled mode equations of a nonlinear optical Bragg grating
(2007)We discuss the existence of combined dark and antidark soliton forms or combined solitons in the generalized coupled mode equations of a nonlinear optical Bragg grating. These solitons are not allowed in the conventional ... -
Communication Climate Forecast to Farmers Though Climate Field School : Indonesian Experience
(2010)Agriculture activities are very depending on climate condition. The failure of crops to produce good yield is very often due to bad climate. Capability of farmers to use climate forecast to anticipate the events is very ...