Judul: Optimasi Distribusi Air Bersih di Asrama TPB IPB
Abstrak: One of the main issues of water distribution process relates to effectiveness of pumps operation. When a pump was turn on there will be a power surge that makes it requires higher power, such that initial power is much greater than normal power. In this manuscript, optimal use of pump for the water distribution at TPB IPB dormitory is discussed. That problem was modeled into an integer linear programming and solved by using LINGO 11.0 software. The model is solved to obtain the pump operation scheduling which minimize energy consumption of electricity.
Keyword: Bogor Agricultural University (IPB), water distribution, pump scheduling, optimization

Judul: IPB (Bogor Agricultural University)
Abstrak: The focus of this study is the devetopment of a sustainable water resource utilization model through proper water priCing regime in the DKI Jakarta region, in accordance With cost of treatment at the firm (pAM Jaya) and conservation of water resources at the up-stream catchment areas. The objectives of this study are: (1) to buill and test the behavior of water supply and demand over time, (2) to conduct the optimizatiOn model the time variable, and (3) to formulate alternative of scenarios water resource management policy v.flich will give an optimum benefit and win con5efVe the water resource. Two methods are used in this research: First, the econometric analysis was applied to construct the water suppty and demand dynamicalfy. Second, the dynamic optimization was carried out to analysis the total benefi1s accrued to stakehokiers given the constraints on water supply and water pricing mechanism. Results of the study show that demand for water in urban area is greater than its supply and water supply has experienced a decreasing retum to scale. The water price is specified by ftat price which does not capture the nature of water scardty, because it is not related to economic consideration, especially, related to adjustment between investment. operation, and maintenance cost.. to contrast, marginal price has shown the scarcity of water resource and by intemaIizing the cost of externality in .the up-stream and water fee in the fonn of provision value of water (NPA). Another resuH suggests that the benefit of an optimum utilization of ground and surface water resource at baseline modeJ. reached about Rp. 141.128 billion for the last period, with demand growth at 4.7 percent The gromdwater stock. Of aquifefS inDKI Jakarta witl decrease by half in 2008, afterwards the treatment of surface water will become Vert intensive, and very costly, so that the price of potable water witl be expensjve, Finally. the study shows that the market based scenarios generates more benefit and a longer time path of planning to meet the growth of demand and the available stock d water resources will be decreased in 2039.
Keyword: 

Judul: Mitochondrial DNA Gene Organization and Phylogenetic Relationship of Naja siamensis
Abstrak: Naja siamensis is one of Asiatic cobra in the Family of Elapidae, known as a cryptic snake. It has many morphological variations that lead to misidentification. Misidentification can cause the wrong concept in developing antivenom types due to high snakebite cases occur in Thailand. Thus, an accurate species identification using a molecular approach is crucially required. Mitochondrial DNA has been used widely in snake molecular studies. These studies were aimed to determine the arrangement of the N. siamensis partial mitochondrial genes using reptile-oriented primers and to reveal the phylogenetic relationship among other species of Asian cobra. DNA extraction was carried out based on the standard DNA salting-out protocol and was conducted by bioinformatics analysis using BLASTn and MEGA 6 software. Gene annotation was performed against N. kaouthia complete genome. A total of 3121 bp of N. siamensis mtDNA genes were sequenced consisting of partial of six regions: 16S rRNA, ND1, tRNA-Ile, CRII region, tRNA-Leu, tRNA-Gln, and COI genes. The mtDNA gene organization of N. siamensis was predicted to has a similar pattern with the common Elapidae mtDNA gene organization. This study showed that there is a monophyletic form in Naja genus and N. kaouthia is the closest species with N. siamensis based on partial 16S rRNA and ND1 gene.
Keyword: 16S rRNA, Elapidae, ND1, phylogenetic relationship