Judul: Perencanaan Drainase Menggunakan Konsep Zero Runoff di Cluster Pinnacle, Dramaga Cantik
Abstrak: Bogor merupakan salah satu kota dengan curah hujan yang tinggi. Dengan demikian Bogor membutuhkan daerah resapan air yang cukup dan memadai. Penelitian ini bertujuan untuk menerapkan konsep drainase zero runoff di Cluster Pinnacle Dramaga Cantik. Curah hujan rencana yang digunakan adalah sebesar 123 mm. Selanjutnya, data yang telah diolah menggunakan metode Gumbel diuji kecocokan distribusi frekuensi terhadap distribusi peluang yang mewakili distribusi frekuensi tersebut. Analisis limpasan melibatkan koefisien tertimbang dan jenis tutupan lahan. Hasil penelitian menunjukkan bahwa nilai koefisien limpasan wilayah adalah 0,57 dengan volume limpasan mencapai 14034,5 m³.Volume limpasan total yang dihasilkan adalah 1478,33 m³. Dengan adanya bangunan resapan, debit limpasan dapat dikurangi menjadi 0,005 m³/detik. Sumur resapan dirancang dengan diameter 1,4 meter, kedalaman 2,3 meter, dan luas permukaan 11,65 m². Efektivitas bangunan resapan ini mampu mengurangi volume limpasan hingga 54,46% menjadi 673,28 m³ terserap. Jumlah sumur resapan yang dibutuhkan adalah sebanyak 239 buah. Rancangan Anggaran Biaya (RAB) pembuatan sumur resapan di Cluster Pinnacle, Dramaga Cantik sebesar Rp. 1.111.200.837,18. Dapat disimpulkan bahwa konsep zero runoff efektif dalam mengurangi limpasan di Cluster Pinnacle Dramaga Cantik., Bogor, known for its high rainfall, requires sufficient water retention areas. This study aims to implement the zero runoff drainage concept in Cluster Pinnacle Dramaga Cantik, utilizing a planned rainfall of 123 mm. Data processed using the Gumbel method were tested for frequency distribution fit, revealing a regional runoff coefficient of 0.57 and a total runoff volume of 14,034.5 m³. With infiltration structures, runoff reduced to 0.005 m³/second. Infiltration wells, sized at 1.4 meters in diameter, 2.3 meters in depth, and 11.65 m² in surface area, effectively absorbed 54.46% of runoff volume, totaling 673.28 m³. A total of 239 infiltration wells are needed, with an estimated budget of Rp. 1,111,200,837.18 for construction. This research concludes that the zero runoff concept effectively mitigates runoff in Cluster Pinnacle Dramaga Cantik.
Keyword: drainage, drainase, limpasan, sumur resapan, runoff, infiltration well

Judul: Perencanaan Drainase dengan Konsep Zero Run-Off pada Kawasan Hotel Duta Berlian, Bogor
Abstrak: Saluran Drainase pada kawasan Hotel Duta Berlian yang terletak di Desa Balungbang Jaya, Kecamatan Bogor Barat mengalami sampah-sampah di aliran drainase pada kawasan tersebut yang menyebabkan saluran drainase tidak berfungsi dengan baik. Tujuan dari penelitian ini adalah mengurangi terjadinya genangan dan limpasan (runoff) dengan menggunakan konsep zero runoff dan menentukan nilai efektivitas pengurangan limpasan. Data primer yang digunakan berupa nilai permeabilitas tanah data sekunder berupa data curah hujan 10 tahun terakhir dari tahun 2013-2022, data Digital Elevation Modeling (DEM) dan jenis tanah pada lokasi penelitian. Kawasan Hotel Duta Berlian dengan luas kawasan sebesar 13308 m2 dengan curah hujan rencana sebesar 128 mm memiliki nilai koefisien limpasan sebesar 0,46. Nilai volume andil banjir sebesar 670,79 m3. Nilai Qt (limpasan) tanpa sumur resapan diperoleh sebesar 48,38 m3/jam, dan setelah digunakan sumur resapan menjadi 42,32 m3/jam. Total Jumlah sumur resapan dan rorak dari hasil perhitungan yaitu sebanyak 24 buah dan rorak sebanyak 102 buah untuk saluran parit sepanjang 307 m. Volume andil banjir di wilayah tersebut berkurang setelah dilakukan penambahan sumur resapan dan rorak pada parit yaitu sebesar 400,71 m3. Sehingga nilai efektifitas bangunan resapan dengan menggunakan konsep zero runnoff yaitu sebesar 59,74%., The drainage channel in the Duta Berlian Hotel area, which is located in Balungbang Jaya Village, West Bogor District, has had garbage in the drainage in the area which causes the drainage channel to not function properly. The purpose of this study is to reduce the occurrence of inundation and runoff by using the concept of zero runoff and determine the value of the effectiveness of reducing runoff. The primary data used is soil permeability value, secondary data is rainfall data for the last 10 years from 2013-2022, DEM (Digital Elevation Modeling) data and soil type at the study site. The Duta Berlian Hotel area with an area of 13308 m2 with a planned rainfall of 128 mm/day has a runoff coefficient value of 0,46. The flood share volume value is 670,79 m3. The Qt (runoff) value without infiltration wells was 48,38 m3/hour, and after using the infiltration wells it became 42,32 m3/hour. The total number of infiltration wells and rorak from the calculation results are 24 and 102 rorak for a 307 m long ditch. The volume of flooding in the area decreased after the addition of infiltration wells and rorak in the ditch, which amounted to 400,71 m3. So that the value of the effectiveness of the infiltration building using the zero runoff concept is equal to 59,74%.
Keyword: Drainage, Soil Permeability, Infiltration Well, Rorak

Judul: Variasi Alel dari Gen 5-HTT (Penyandi Agresivitas) pada Macaca nemestrina
Abstrak: Macaca nemestrina is an aggressive primate. The aggresivity is influenced by many factors, one of them is by a gene. The 5-HTT gene encodes the serotonin transporter that affects the regulation of serotonergic system and its receptor by modulating the concentration of serotonin in extracellular fluid. Variation in promoter and intron region can change the transcriptional activity of the 5-HTT gene, mainly the activity of the transporter and serotonin uptake. The transporter change activity influenced aggressivity, emotion, motor function, and some cognitive traits in primates. This research aimed to determine alelles variant of 5-HTT gene (encoding aggresivity) in M. nemestrina. Samples used in this research consisted of 56 M. nemestrina. The gene was amplified by the Polymerase Chain Reaction (PCR) method. Amplification in promoter region revealed two alleles and three genotypes with the frequencies of L and S alleles were 88,18% and 11,82%, respectively. Amplification of the third intron region showed two alleles with the frequency of l and s alleles were 55,4% and 44,6%, respectively. None of the individual had s/s genotype in the third intron region. Short allele was dominant to long allele. The presence of at least one short allele decreased transcription activity. There was one individual with S/S genotype in promoter region that was possibly to be the alpha male in the group.
Keyword: