Judul: Pemodelan pengaruh jarak jangkau ruang terbuka hijau terhadap suhu permukaan di perkotaan (  studi kasus : kota Bogor )
Abstrak: This research was conducted in Bogor, located at 106o48'40'' E-106o46'22'' E and 6o30'53''S -6o40'08'' S. The research aimed at determining the influence of greenspace distance on micro climate especially on surface temperature, and therefore the effective distance of greenspace can be determined for urban spatial planning consideration. Urban surface temperature is the function of energy balance components and greenspace distance. Information of greenspace was derived from satellite image of Landsat 5 TM +.The image wa classified into seven land cover types i.e water bodies, constructed land, bush, paddy field (sawah), high vegetation, field (ladang), and oil palm. Distance to each greenspace type (bush, paddy field, high vegetation, field, and palm), were calculated using Euclidean distance principle. Energy balance components of each land cover class that include net radiation (Rn), soil heat flux (G), sensible heat flux (H), and latent heat flux (LE) were extracted from band 1,2,3 and 6 of Landsat 5 TM image data.
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Judul: Pendugaan Efek Pendinginan Menggunakan Model Empiris di Ruang Terbuka Hijau Institut Pertanian Bogor.
Abstrak: The cooling effect of small green areas with trees sites of various geometric configurations is the object of this study. It was studied experimentally at 3 different sites in Bogor Agricultural University during the period March-June 2013. An empirical model is developed in this study for predicting the cooling effect inside the sites. The model is based on statistical analysis carried out on 658 experimental observation gathered every 6 am and 2 pm from the 3 sites on calm days. Two factors that explain inside the sites are the partial shades area under the tree canopy and site specific effect. The cooling effect of green space areas on their immediate surrounding at noon was also analyzed. The cooling effect estimated in this study is perceivable up to about 50 m in the streets branching out from the site. The findings show the differences of every site, Graha Widya Wisuda (GWW) site that has most traffic outside the site shows biggest difference between site borders and the point measure in 50 m about -2.60 C.
Keyword: canopy, cooling effect, empirical study, green space area

Judul: Identifikasi Ikan Nila Betina Fungsional YY Secara Molekuler dan Produksi Jantan YY.
Abstrak: Ikan nila jantan memiliki pertumbuhan lebih cepat daripada betina, sehingga memberikan produksi yang besar >58%. Hal ini terjadi karena energi terfokuskan pada pertumbuhan somatik. Tujuan penelitian ini adalah menguji akurasi metode polymerase chain reaction (PCR) dalam identifikasi ikan nila betina YY, dan produksi jantan YY. Induk ikan nila betina normal bergenotipe XX dikawinkan dengan jantan normal XY. Keturunannya diberi perlakuan 17β-estradiol. Kemudian jantan akan berubah menjadi betina secara fenotipe (sifat yang tampak dari luar) dan diperoleh betina XY. Ikan betina XY dipelihara hingga matang gonad, dan dikawinkan dengan jantan normal XY, keturunan dibagi menjadi dua sub-populasi, yaitu tanpa perlakuan estradiol (uji progeni II) dan dengan perlakuan estradiol (uji progeni III). DNA genomik diekstraksi dari sirip ekor ikan betina berumur 3–5 bulan, dilanjutkan PCR dengan primer yang didesain dari gen MDG. Setelah matang gonad, uji progeni II dilakukan untuk memperoleh induk jantan YY, dan uji progeni III untuk mencari betina YY dengan menganalisis keturunannya menggunakan metode histologi pewarnaan asetokarmin. Hasil analisis PCR menunjukkan bahwa ikan betina YY memiliki pita DNA produk PCR berukuran 200 bp dan 500 bp, sedangkan betina XX hanya ada pita DNA berukuran 200 bp. Melalui uji progeni, diketahui bahwa induk betina YY memiliki keturunan >90% jantan, sedangkan induk XY <90%. Secara total diperoleh sebanyak 1 ekor ikan betina YY dari 6 ekor yang diperiksa. Sementara untuk induk jantan YY diperoleh sebanyak 19 ekor. Dengan demikian, metode PCR dengan marka MDG dapat digunakan untuk mengidentifikasi betina YY secara lebih cepat.
Keyword: betina fungsional, ikan nila, MDG, PCR, uji progeni