Judul: Perilaku Vektor Demam Berdarah Dengue (Aedes spp.) di Daerah Endemis Kelurahan Bantarjati Kota Bogor
Abstrak: Bantarjati subdistrict is an area that has the highest dengue cases in the city of Bogor during 2007 to 2011. The purpose of this research was to observe the behavior of biting and resting Aedes spp. Mosquito collection was done by human landing collection and resting collection from 08.00 to 17.00 in Bantarjati subdistrict during April−July 2012. The results showed that Aedes aegypti was more active indoor the house (0.24 mosquito/person/hour) than outdoor (0.16 mosquito/person/hour) with the biting activity occurred at 10.00−11.00 (0.42 mosquito/person/hour) and at 16.00−17.00 (0.21 mosquito/person/hour). While Ae. albopictus was more active outdoor the house (0.18 mosquito/person/hour) than indoor (0.05 mosquito/person/hour) with the biting activity occurred at 10.00−11.00 (0.42 mosquito/person/hour) and at 14.00−15.00 (0.17 mosquito/person/hour). Ae. aegypti was found resting more indoor the house (0.03 mosquito/house) than outdoor (0.02 mosquito/house), while Ae. albopictus was found resting more outdoor the house (0.01 mosquito/house) than indoor (0.00 mosquito/home). The result of Pearson’s correlation analysis showed that the relationship between the rainfall index with the density of Ae. aegypti (r=0.94, P>0.05), and Ae. albopictus (r=0:49, P>0.05).
Keyword: resting behavior., biting activity, albopictus, Ae. aegypti, Ae

Judul: Dinamika Populasi Larva Nyamuk Aedes spp. di Kelurahan Bantarjati Kota Bogor
Abstrak: Dengue hemorrhagic fever (DHF) is caused by dengue virus. The virus is transmitted to humans through the bites of Aedes aegypti and Ae. albopictus as the primary vector dengue. The aim of this research to observed population dynamics of Aedes spp. mosquito larval related to rainfall index correlated breteau index (BI). This research was conducted in April until July 2012 in DHF endemic area Bantarjati Subdistrict Bogor City. The larval collected in containers indoor and outdoor were 396 containers from 200 households. The result showed that the density of larval population in Bantarjati Subdistrict were belonged to the moderate category according to density figure (DF) in the rate of 2−5 (WHO 1972). Ae. aegypti larval were also found in indoor containers (8.81%) and Ae. albopictus in outdoor containers (34.33%). The BI average was the best indicator to describe the density of larval population. In this research, BI average was significantly correlated (p<0.05) to the rainfall index of Bogor during April−July 2012.
Keyword: Mosquito larvae, Dengue hemorrhagic fever (DHF), Aedes albopictus, Aedes aegypti

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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