Judul: Identifikasi Molekuler Undur-Undur Laut dari Perairan Pantai Cilacap Berdasarkan Marka Gen Cytochrome Oxidase Subunit I (COI)
Abstrak: Mole crab (Albunea symmysta) as an infaunal organism inhabits tidal-exposed sand sediment. Like other aquatic organisms, mole crab is destined to be cryptic species and complex species often leading to morphologically misidentification. Taxonomic identification for genus Albunea was uncertain due to variation in morphology. This study was aimed at identifying and analizing the phylogenetic relationship A. symmysta from Cilacap coastal waters based on molecular genetic marker Cytochrome Oxidase subunit I (COI). Isolation and extraction resulted in two intact DNA product which were amplified using universal COI primer. There were 650 bp nucleotide sequences. COI gene A..symmysta was aligned with other species catagorized as ingroup and outgroup (family Hippidae) acquired from GenBank. Alignment was performed using MEGA 5.0 software. Construction of phylogeny tree showed distinction between Albuneidae and Hippidae. There were 158 specific nucleotides in A. symmysta.
Keyword: molecular identification, COI gene, A. symmysta

Judul: Karakteristik Gen Cytochrome Oxidase Subunit I (COI) pada Kerang Bulu (Anadara antiquata Linn.) asal Perairan Panimbang dan Bojonegara, Provinsi Banten
Abstrak: Anadara antiquata is an intertidal bivalve belongs to Arcidae Family. Its distribution in Indonesia is widespread. Its play role both in economy and ecology. Based on genetic database from GenBank, there is no genome data of A. antiquata from Indonesia. Therefore, to accomplish information on this hairy cockle, this research was aimed at characterizing cytochrome oxidase subunit I (COI) in cockle (Anadara antiquata linn.) from Banten (Panimbang and Bojonegara). Hairy cockle samples were collected from Panimbang and Bojonegara. Those were extracted for DNA analysis. DNA extraction and amplification process were followed with DNA sequencing of COI gene that produced 607 nucleotides (nt). The product was analyzed using software MEGA 4.0 and aligned with some sequences from GenBank database. This study was able to characterize A. antiquata COI gene which product was 382 nt using alignment method of Clustal W.
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Judul: Dynamic New Keynesian Model for Unemployment and Inflation Rate.
Abstrak: This paper deals with a scientific analysis of the equilibrium level of hiring, employment and unemployment. The basic model being used is a standard new Keynesian model, which states that utility function depends on consumptions and working hours. Utility maximization refers to a standard labour supply equation, with the marginal cost’s dynamics on new Keynesian model simply reflects movements in real wages and productivity. Furthermore, trade-off between output and inflation stabilization can be considered using the new Keynesian Phillips curve. Dynamic general equilibrium model is a model that can be used to study interactions between market imperfections and nominal rigidities, which is capable of overcoming the main shortcoming of the standard new Keynesian model. In the general equilibrium model there are three groups of the economy agents, namely households, firms and monetary authority. The results of this research science that bargaining processes between firms and workers will yield optimal wage. Increase in labour will cause wages to fall, but the unemployment rate can be reduced. An increase in the firm’s monopoly power will shift the labour demand curve downward, which will reduce the number of workers that firm is willing to hire for any given bargained wage.
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