Judul: Estimasi Kualitas Udara Ambien di Sekitar Jalan Malioboro Yogyakarta menggunakan Model Finite Length Line Source
Abstrak: Pencemaran udara merupakan permasalahan lingkungan hidup yang sering di temui di kota-kota besar seperti Kota Yogyakarta. Yogyakarta selain sebagai kota pendidikan juga merupakan tujuan wisata. Salah satu destinasi yang sering dikunjungi adalah Malioboro. Tujuan dari penelitian ini adalah untuk menduga beban emisi pencemar yang bersumber dari aktivitas transportasi serta kualitas udara ambien di sekitar Jalan Malioboro Yogyakarta. Pendugaan konsentrasi polutan di lakukan dengan menggunakan box model dan dispersinya menggunakan FLLS. Berdasarkan hasil model tersebut diperoleh bahwa CO merupakan polutan dengan konsentrasi tertinggi. Selain itu berdasarkan analisis kualitas udara menggunakan ISPU diperoleh bahwa kadar CO di Jalan Malioboro mencapai angka 185 yang artinya sudah berada dalam kondisi tidak sehat, sementara untuk polutan lainnya masih berada dalam kondisi baik. Dalam penelitian ini diperoleh bahwa arah angin di Jalan Malioboro cenderung mengarah ke Barat Laut yang menandakan bahwa daerah yang berpotensi menerima pencemar dari Jalan Malioboro adalah sekitar Jalan Sosrowijayan. Hasil pendugaan konsentrasi pencemar menggunakan model FLLS selama pengamatan menunjukan konsentrasi CO di sekitar Jalan Sosrowijayan mencapai 3 μg/m3 , sementara untuk polutan lainnya <1 μg/m3 yang artinya masih berada dalam batas aman.
Keyword: angin, box model, FLLS, ISPU, kualitas udara, polutan, transportasi

Judul: Pengujian Kualitas Udara Ambien Jalan Raya Kota Bekasi.
Abstrak: Air polution in Bekasi City is caused by 70% of transportation sector, 20% of industry sector, and 10 % domestic sector. Thus, in order to reduce air polution and improve the ambient air quality in Bekasi city , it needs to reduce air pollution produced either from tranportation or industrial sector. Based on the results of ambient air quality test along the roadside of Bekasi City during three periods in the year 2011, it showed that there are 2 parameters obtained which relatively increase, they are the TSP / dust and CO. For almost all parameters of CO along the observation points increased to the limit of specified quality standards. Parameters of TSP has highly increased throughout the year 2011. Almost TSP point exceed threshold quality standard (TQS). Based on the secondary data of CO concentration in 2010, the CO concentration is high in the morning and afternoon, and lower during the day and night. Ambient air quality in Bekasi city from 2009 to 2011 has decreased with increasing amount of tested pollutant concentrations, especially on the concentration of CO and TSP which have inclining done
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Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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