Judul: Kunang-kunang (Coleoptera: Lampyridae) di Cikampek Kabupaten Karawang dan Dramaga Kabupaten Bogor
Abstrak: Kunang-kunang sebagai anggota famili Lampyridae merupakan kumbang berukuran kecil hingga sedang yang terdistribusi hampir di seluruh dunia, terutama di lingkungan dengan tingkat kelembaban yang cukup tinggi. Bioluminescence merupakan salah satu fitur yang dimiliki oleh famili Lampyridae, walaupun tidak semua spesies ini memiliki kemampuan bioluminescence. Kemampuan bioluminescence pada kunang-kunang digunakan sebagai alat komunikasi dan sinyal tanda untuk menarik pasangannya. Penelitian ini bertujuan mengidentifikasi dan mendeskripsi kunang-kunang yang ada di Kecamatan Dramaga Kabupaten Bogor dan Cikampek Kabupaten Karawang. Metode penelitian dilakukan dengan menangkap kunang-kunang dewasa dan larva kunang-kunang pada malam hari. Identifikasi sampai tingkat genus menggunakan kunci determinasi yang sesuai. Kunang-kunang dewasa dan larva yang terkoleksi berasal dari famili Lampyridae subfamili Luciolinae, genus Luciola dengan ciri elitra dan pronotum berwarna coklat, bagian ventral tubuh berwarna jingga kecoklatan, dan warna cahaya yang dihasilkan berwarna kehijauan.
Keyword: kunang-kunang, Lampyridae, Luciola, bioluminescence, Cikampek, Dramaga

Judul: Kajian Habitat dan Aktivitas Kemunculan Kunang-Kunang dengan Observasi Cuaca Skala Mikro di Kawasan Situ Gunung, Kabupaten Sukabumi
Abstrak: Firefly is an insect that produces bioluminescence and serve as environmental indicator. Several countries such as Japan, Thailand, and Malaysia have use the potential of a firefly for tourism. Fireflies require suitable habitat conditions in terms of ecological and physical elements, including weather elements. This study aimed to determine the linkage elements of micro-scale weather with the emergence of fireflies. The methods used in this study include the weather observation, visual encounter surveys (VES) time search, and identification of species. Weather and emergence observation were conducted in rotation on four lanes (Wisma Kantor, Curug Sawer, Danau and Curug Cimanaracun) at night (19.30–22.00). The optimum temperature of emergence at range 17.5–19.5 °C and most found at RH 93–96%. Decreasing of air temperature, precipitation events, and higher RH can inhibit the movement of the wings, making they less suitable for the emergence of fireflies. Besides weather elements, the characteristics of any area related to the fireflies. Those indicated by the difference in species, the spread and the rate of appearance of fireflies in each region. The highest emergence of fireflies is located on Curug Cimanaracun lane where has denser canopy cover, humidity is quite high, and there is a body of water that supports the fireflies, especially eggs and larval phase. Humid conditions in Curug Cimanaracun lane also suitable for habitat of snails as prey of firefly larvae.
Keyword: Bogor Agricultural University (IPB), VES, RH, precipitation, Lampyridae, air temperature

Judul: Pengaruh Lama Reaksi dan Laju Alir SO3 pada Produksi Surfaktan Methyl Ester Sulfonate Acid (Mesa) dari Metil Ester Jarak Pagar (Jatropha curcas L)
Abstrak: Surfactant is an active agent which could reduce surface tension. Surfactant could be found in cleaning agent, emulsifier, and homogenizer. Applications of surfactant are in detergent industry, food and beverage industry, and oil industry. According to its hydrophilic complex we could divide surfactant into four groups which is anionic surfactant, cationic surfactant, amphoteric surfactant, and non-ionic surfactant. Anionic surfactant is the most needed surfactant in the world Methyl ester sulfonates Acid (MESA) are one of the anionic surfactant which is renewable. One of the prospective feedstock of MESA is jatropha curcas. The dominant fatty acid of jatropha curcas oil is C16 unti 18. This fatty acid will have good detergency if it converted to surfactant. Jatropha curcas also doesn’t compete with food as a industry feedstock. Sulfonation method to produce MESA are falling film method with Single Tube Falling Film Reactor (STFR) 5 liter scale. The feedstock are jatropha curcas oil which is converted to methyl ester trough esterification process and continued with trans-esterification process (es-trans). The reactant which is used is sulfur trioxide (SO3). This reactant is chosen because it more reactive and produce less sludge than H2SO4 or Na2SO3 reactant. This research scope is only cover MESA production. MESA is an intermediate product for MES which is not purified yet. The goal of this research is to know the effect of reaction time and reactant flow rate to physic-chemical characteristic of MESA. The levels of reaction time are 30, 45, 60, 75, and 90 minutes. The SO3 reactant flow rate levels are 2,2, 2,8 dan 3,0 kg/hour. Analyses of MESA cover interfacial tension, surface tension reduction, iodine value, active matter content, acid value, and pH. . The range of interfacial tension of MESA are 1,1-4,43 dyne/cm. The
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