Judul: Analisis Risiko Kejadian Demam Berdarah Dengue Berdasarkan Informasi ENSO dan IOD (Studi Kasus Pulau Jawa)
Abstrak: Dengue fever disease (DBD) is an infectious and endemic disease that is increase doing in the beginning and ending of rainy season. The disease is caused by the Dengue virus that related with influence of climate variability, including rainfall. Rainfall is affected by El Nino Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) phenomenon. ENSO and IOD information will provide benefits in the determination of the dengue incidence rate, especially in the area which has monsoon rainfall type, like Java Island. However, not all areas in Java Island are affected by ENSO and IOD phenomenon. The objective of this study is to determine the influence of ENSO and IOD phenomenon with respect to dengue incidence rate in the form of a DBD area vulnerability map. The analysis is use correlation between ENSO and IOD against developed incident rate (IR) of DBD in Java. Then, the vulnerability areas using GIS (geographic information system). This study demonstrated that when ENSO and IOD was in the Positive 4 phase, most areas in Java are hyperendemic. After that, we predicted IR DJF with IOD and ENSO. The correlation between IR December-January-February (DJF) and IOD is 0.480 in cluster fourth of June. The correlation between March’s ENSO and IR DJF is 0,586 in cluster sixth. The prediction of IR March-April-May (MAM) is only affected by the correlation of November’s IOD 0,662 on cluster Sixth. Commonly, ENSO and IR haven’t a significant correlation and effect toward DBD cases in some parts of Java Island.
Keyword: 

Judul: Kajian Potensi Transmisi Penyakit Demam Berdarah Dengue Berdasarkan Curah Hujan dan Suhu di Jawa Tengah
Abstrak: Dengue hemorrhagic fever (DHF) is a viral disease which has spread throughout Indonesia over the past 25 years. Ae. aegypti is the main vector of the disease. In Indonesia, especially in Central Java, there has been an upward trend in the incidence of dengue hemorrhagic fever. Therefore some efforts to suppress an outbreak of this disease had been done by the government with focus against the vector. This research aims to determine and mapping the transmission potential (TP) of DHF in Central Java under 4 principal seasons: rainy (December- February), transition 1 (March – May), dry (June-August) and transition 2 (September – November) at 3 rainfall conditions ( below normal, normal and above normal years) using vectorial capacity (VC) method. The results show that the maximum average VC for under normal years occur on December-February, whereas for normal and above normal years its occurs on March-May. In every rainfall condition, the minimum VC occur on June-August when rainfall is minimum. Based on resulted map from this research, in coastal area of northern and southern site of Central Java which is lowland area, TP were higher than in central area which is highland. TP on city with high population such as Tegal, Semarang, and Surakarta were higher. Nevertheless, between VC and incidence rate (IR) were significant with coefficient correlation 0.057, caused by there weren’t interventions between 35 districts in Central Java to supress the number of DHF disease in case of sanitation, vector controls (fogging, aerial spraying, making abate), immunity of society, etc.
Keyword: 

Judul: Sintesis 1-Kloro-2-metoksi-6-propilnaftalena-1,3-dioksolana (1:1) sebagai Prekursor Asam (S)-(+)-(6-Metoksi-2-naftil)propanoat
Abstrak: Senyawa 1-kloro-2-metoksi-6-propilnaftalena-1,3-dioksolana (1:1) sebagai prekursor asam (S)-(+)-(6-metoksi-2-naftil)propanoat disintesis dari bahan awal 2-metoksinaftalena. Tahapan sintesis diawali dengan klorinasi menggunakan 2 jenis pereaksi klorinasi, yakni isosianurat terklorinasi dan NaOCl. Klorinasi dengan isosianurat terklorinasi berhasil menyintesis 1-kloro-2-metoksinaftalena sebagai produk monoklorinasi melalui pencirian dengan kromatograf gas-spektrometer massa (GC-MS). Nisbah konversi produk paling efisien diperoleh pada laju penambahan 2.5 mmol/jam. Sebaliknya, klorinasi dengan NaOCl menghasilkan produk triklorinasi. 1-Kloro-2-metoksinaftalena selanjutnya diasilasi dengan propanoil klorida, tetapi analisis dengan GC menunjukkan bahwa produk asilasi tidak terbentuk. Sistem bebas-air diperlukan untuk keberhasilan proses asilasi tersebut.
Keyword: isosianurat terklorinasi, NaOCl, nisbah konversi