Articles

FEEDING DETERRENT ACTIVITY OF ANDROGRAPHOLIDE AGAINST COTTON BOLLWORM , HELICOVERPA ARMIGERA HüBNER (LEPIDOPTERA : NOCTUIDAE) Hermawan, Wawan
Biotika (Jurnal Ilmiah Biologi) Vol 1, No 1 (2002): Biotika JUni 2002
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In laboratory choice and no-choice tests, andrographolide was tested against the 4thinstar larvae of the cotton bollworm (CBW), Helicoverpa armigera using cabbage leaf disc. Each test was repeated 5 times. No-choice test showed that andrographolide was less effective in feeding suppression against CBW. In choice test, andrographolide significantly suppressed feeding at high dose of 400mg/leaf disc. Key words : Helicoverpa armigera, andrographolide, feeding deterrent.
BIOAKTIVITAS EKSTRAK DAUN SOSOR BEBEK (Kalanchoe daigremontiana Hammet & Perrier ) TERHADAP LARVA KUMBANG KOKSI (Epilachna vigintioctopunctata Fabricius Melanie, ,; Hermawan, Wawan; Supratman, Unang
Biotika (Jurnal Ilmiah Biologi) Vol 3, No 2 (2004): Biotika Desember 2004
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The research of the bioactivity effect of the leaves extract Kalanchoe daigremontiana Hammet & Perrier (Crassulaceae) against the fourth instar larvae of Epilachna vigintioctopunctata Fabricius (Coleoptera) the harm of Solanaceae were conducted at Laboratory of Animal Taxonomy, Department of Biology, FMIPA UNPAD Jatinangor. The experiment of bioassay test was conducted with observasion in 1 x 24 hours and continue to antifeedant test with no choice test. The data were analysed by the Mann Whitney U test to compare between the control with the treatments. The result showed that the leaves extract of Kalanchoe daigremontiana have antifeedant bioactivity against to early fourth instar larvae of E. vigintioctopunctata which significantly reduce the feeding activity of larvae at  78,125 ppm, 156,25 ppm, 312,5 ppm, 625 ppm, 1250 ppm, 2500 ppm, dan 5000 ppm concentrations.
AKTIVITAS ANTIFIDAN ANDROGRAFOLIDA PADA GANGLION SARAF LARVA Plutella xylostella Suhendar, Baum; Erawan, Erik s; Hermawan, Wawan
Biotika (Jurnal Ilmiah Biologi) Vol 3, No 1 (2004): Biotika Juni 2004
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A continued research of antifeedant activity of andrographolide have been done to understand it action mode to ganglion tissues of Plutella xylostella that is wellknown as the cabbage worm. Worms that allowed from moth rearing choosen the instar-4 stage of larva, then treated for 24 hours by given the feed that deeped in andrographolide solution with the concentrations of 1000, 1600, 2500, 4000, and 6500 ppm. The control larva feed which deeped in methanol as andrographolide solvent.  After treatment, the worm was fixated to make slices accoding to parafin method and the Mallory-Azan staining. The result of this research showed that andrographolide caused the pathological structure of nerve ganglion that cells enlargement formed or hypertrophy and the evidence occured increasingly according to the increasing of andrographolide concentration.
EFEK ANTIFIDAN ANDROGRAFOLIDA TERHADAP HISTOKIMIA ENZIM PENCERNAAN LARVA Plutella xylostella Hermawan, Wawan; kasmara, Hikmat; Kuntana, Yasmi P
Biotika (Jurnal Ilmiah Biologi) Vol 3, No 1 (2004): Biotika Juni 2004
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A continued research of antifeedant activity of andrographolide have been done to understand it action mode to digestive enzymes tissues of Plutella xylostella that is wellkown as the cabbage worm. Worms that allowed from moth rearing choosen the instar-4 stage of larva, then treated for 24 hours by given the feed that deeped in andrographolide solution with the concentrations of 1000, 1600, 2500, 4000, and 6500 ppm. The control larva feed which deeped in methanol as andrographolide solvent.  After treatment, the worm was fixated to make slices accoding to parafin method and the Mallory-Azan staining. The result of this research showed that andrographolide coused the decrease of digestive enzyme activity and that decreasing designated with the decreasing of stain intensity that depend on increasing of andrographolide concentration
Hubungan Tingkat Tabungan Domestik Bruto Dengan Pertumbuhan Ekonomi Hermawan, Wawan
Bina Ekonomi Vol 8, No 1 (2004)
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Every development country faces the similar problems about how to boost economics to reach for the prosperity. Many models have developed to help the government plan their economics. This paper with base on Aklilu A. Zegeyes paper presents the alternative model to build the correlation of rate of gross domestic saving and economic growth with simultaneous equation.
PENGEMBANGAN SEKTOR INDUSTRI MANUFAKTUR YANG BERKELANJUTAN DAN BERWAWASAN LINGKUNGAN DENGAN MENGGUNAKAN PENDEKATAN METODE INPUT OUTPUT DAN INDUSTRIAL POLLUTIONS PROJECTION SYSTEM (IPPS) Hermawan, Wawan
Bina Ekonomi Vol 7, No 1 (2003)
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Indonesian economic growth is inseparable from the vast growth of manufacturing industry sector, which contribute dominantly to the GDP. The increasing pollution toad that is caused by the activities of manufacturing industry sector follows this growth. The main objective of this research is to calculate the pollution rate caused by the activities of manufacturing industry sector and also manufacturing industry sector behavior in 1990 and 1995. So in turn it can be determined, which manufacturing industry sub sector needs to be noticed more By finding out the sub sector that contributes more to the pollution rate, the pollution rate can be decreased. Analysis applied is the Industrial Pollution Projection System (IPPS), which is developed by World Bank. The IPPS is combined with Macro Economics analysis and Input-Output model by considering the backward linkage index and forward linkage index of manufacturing industry sector. Based on calculation result, it can be concluded that there is a change on the most pollution contribution of the manufacturing industry sub sector from 1990 until 1995. The most pollute sectors for 1995 which pollutants of air are coded ISIC 3692, 3411, 3710, 3530 and 3540. The sectors, which pollutants of water are, coded ISIC 3710, 3411, 3720, 3511 and 3522. The sectors, which pollutants of soil are, coded ISIC 3511, 3710, 3720 and 3513. The sector, which contribute most in 1995 based on pollutant sorts are coded SO2 (3692), NO2 (3692) and Co (3710). The most pollute to the water called BOD are coded ISIC 3411, while toxic is coded 3511. In Indonesia, the manufacturing industry sector which has the high backward linkage contribute least to the pollution caused by the manufacturing industry sectors compared to the manufacturing industry sectors which have the high forward linkage.
ANALISIS INPUT OUTPUT PROVINSI JAWA BARAT Hermawan, Wawan
Bina Ekonomi Vol 10, No 1 (2006)
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Jawa Barat Province has the rapid growth for industrial sector in 2001-2003. This sector will influence to another sector to make a simultaneous growth for the whole economy. This research tries to analyze and explore the structure of industrial sector in Jawa Barat province. The tools to make a figure out of industrial sector in Jawa Barat province is Input Output Model with backward and forward linkages. The data is Input output table Jawa Barat 2000. The important for this research is the highest linkage (backward or forward) are food industry, textile etc.
PENGUJIAN KAUSALITAS ANTARA TINGKAT BUNGA DAN NERACA PEMBAYARAN DI INDONESIA TAHUN 1999,1-2001,2 Hermawan, Wawan
Bina Ekonomi Vol 10, No 2 (2006)
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Perekonomian Indonesia pada akhir tahun 1997 mengalami krisis keuangan yang berlanjut menjadi krisis ekonomi. Krisis ekonomi ini mengalami puncaknya pada tahun 1998 dan mulai membaik pada tahun 1999. Seiring dengan krisis yang terjadi, perubahan pada kebijakan moneter pun terjadi terutama yang berhubungan dengan perdagangan luar negeri yaitu kurs dan tingkat bunga. Setelah selama puluhan tahun dilakukan kebijakan nilai tukar terkendali pada masa ini diberlakukan nilai tukar mengambang yang sepenuhnya tergantung pasar. Selain itu, kebijakan tingkat bunga pun diberlakukan secara intensif untuk mempengaruhi arus masuk dan keluar modal sehingga akan mempengaruhi Neraca Pembayaran (Balance of Payment) dan komponennya yaitu Neraca Transaksi Berjalan (Current Account) dan Neraca Modal (Capital Account). Penelitian ini mencoba untuk menganalisis hubungan kausalitas antara Neraca Pembayaran (Balance of Payment) dengan Tingkat Bunga pada periode kuartal pertama tahun 1999 sampai dengan kuartal kedua tahun 2002. Selain itu, komponen dari Neraca Pembayaran yaitu Neraca Transaksi Berjalan (Current Account) dan Neraca Modal (Capital Account) juga akan diteliti hubungan kausalitasnya dengan Tingkat Bunga. Metode yang digunakan untuk melihat hubungan kausalitas ini adalah Metoda Kausalitas Granger dengan menggunakan lag satu kuartal dan lag empat kuartal. Hasil pengolahan data dengan metoda Granger memperlihatkan lag satu kuartal dari tiga model hanya satu hubungan searah yang terjadi, yaitu antara Neraca Pembayaran (BOP) dengan Tingkat Bunga (R) sedangkan untuk dua model lainnya yaitu, Neraca transaksi berjalan (CA) dengan Tingkat Bunga (R) dan Neraca Modal (KA) dengan Tingkat Bunga (R), tidak terjadi hubungan kausalitas atau saling bebas. Model-model dengan persamaan lag empat kuartal terjadi satu hubungan kausalitas satu arah, yaitu antara Neraca Pembayaran (BOP) dengan Tingkat Bunga (R) dan satu hubungan dua arah antara Neraca Modal (KA) dengan Tingkat Bunga (R), sedangkan untuk model antara Neraca transaksi berjalan (CA) dengan Tingkat Bunga (R) tidak memberikan hubungan kausalitas atau saling bebas.
SUMBER DAYA ENERGI DAN MINERAL TERHADAP PEMBANGUNAN EKONOMI INDONES Hermawan, Wawan
Bina Ekonomi Vol 8, No 2 (2004)
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Energy consumption for driving economy in many countries has the crucial problem to maintain the sustainable development. The limited stock for energy that comes from fossil fuel resources has come to make the economic to be more efficient. More efficient in the phrase of sustainable social welfare intake. This paper talk with the condition of energy consumption in Indonesia and how the implication to economic development.
TINJAUAN EKONOMI PROVINSI RIAU Hermawan, Wawan
Bina Ekonomi Vol 12, No 2 (2008)
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Riau Province is one of the most faster income per capita growth in sumatera lslands. The economic base of economic structure in Riau Province is Forestry sector. This leading sector improve government income through Local tax income. This phenomenon", contradiction with inequality, unemployment,  and poverty  rate where in theoretically  this indicators has negatif sign correlated with growth with  income per capita, the reason of this fact because  the income GDP  from basis  sector are centralized  to capital  owner.
Co-Authors , Melanie Aceng Kosasih, Aceng Agus Sutejo Agustami Sitorus, Agustami Anak Agung Keswari Krisnandika, Anak Agung Keswari Annisa Nur Ichniarsyah Asep Sapei Bandol Utomo, Bagus Sediadi Baum Suhendar Bob Foster Bulan, Ramayanty Dedi Budiman Hakim Dedi Herdiansah Sujaya, Dedi Herdiansah DESAK MADE MALINI Desrial -, Desrial Desrial . Desrial, Desrial Desrial, Desrial Edi Junaedi Endis Firdaus, Endis Eny Widajati Erawan, Erik S. Erik s Erawan Feby Nopriandi, Feby Fitrawaty Fitrawaty, Fitrawaty Fiyantoni, Fajarudin Giyanto Giyanto Hana P, Maria Asunta Hideo Hasegawa Hikmat Kasmara Indra Maipita Irwin Syahri Cebro Jose R. L. Batubara, Jose R. L. Kartiawati Alipin Khoirunnisa, Dita Aprila Lestari, Virda Catur Lestari, Virda Catur M. Lutfi Madihah Madihah, Madihah Makes, Daniel Malin, Desak Made Manuntun Parulian Hutagaol Mardjan, Sutrisno Suro Masayuki Koike Melanie Melanie, Melanie Melanie, , ,. Mia Miranti Rustama Midian Shite Muhammad Iqbal Nazamuddin, Muhammad Iqbal Muhammad Zairin Yunior Munawar Rahmat, Munawar Nining Ratningsih Putri Marissa, Putri Putri, Fauzah Kartika Radite P. A. Setiawan Radite P. A. Setiawan, Radite Radite PAS Radite Praeko Agus Setiawan Rahman, Panji Futuh Rahmayanti, Rima Ramayanti Bulan, Ramayanti Ramdhany, Deny Rani Maharani Reina Yulianti Yulianti, Reina Yulianti Reina Yulianti, Reina Revan Hardiawan Roh santoso Rosi Rosita, Rosi Rusnadi . Sagita, Diang Samsul Bahri Sasmita, Indriani Setyo Pertiwi Sihotang, Lisda Mawarni Siregar, Paruhum T. Soeharsono - Sofa Fajriah Supriyono Supriyono Susanto Budi Sulistyo Syahidin Syahidin, Syahidin Syuaib, Muhammad Faiz Tatang S. Erawan Taufik Rizaldi, Taufik Taurusyanti, Dewi Tieneke Mandang Tineke Mandang TITI CANDRA SUNARTI Tito Hardiyanto, Tito Tjahja Muhandri Tomohiro Takigawa Tri Mayanti Udin Supriadi, Udin Unang Supratman Vita Novianti, Vita Wahyu K. Sugandi, Wahyu Wahyu Kristian Sugandi Widianto, Tri Nugroho Yasmi P Kuntana Yasmi P. Kuntana, Yasmi P. Yulistiani, Yulinda Nurul Zaenal Abidin