Judul: Studi Habitat dan Perilaku Menggigit Nyamuk Aedes serta Kaitannya Dengan Kasus Demam Berdarah Di Kelurahan Utan Kayu Utara Jakarta Timur
Abstrak: This study was aimed to asses the potency of A.aegypti and A. albopictus as the primary and secondary vectors of dengue fever. The data were gathered through adult and larva collection of mosquitoes and method of interview. The area observation was at Utan Kayu Utara village, Matraman subdistrict, East of Jakarta. Method of research was an observation of larvae and the results showed house index (HI) rate was 11.5%, container index (CI) rate was 6.5%, and Breteau index (BI) rate was 13.3 %. Method of biting rate index (indoor) and house density index of A. aegypti was the highest on May compare to the other months. Peak activity was the highest on 08.00-12.00 am and 04-06 pm. The population of A. aegypti was also dominant compare to A. albopictus at human dwelling. Method of biting rate index (outdoor) of A. aegypti was the highest on June and peak activity was the highest on 00.00-02 pm and 02-04 pm .A. albopictus was the highest on April and peak activity was the highest on 08.00-10.00 am and 04-06 pm. The population of A. albopictus was also dominant compare to A. aegypti at school building. The occurrence and the behaviour of A. aegypti was on May at 29.6 -31,5°C and RH 68%-80%. The inhabitants of Utan Kayu are mostly familiar about both A. aegypti and A. albopictus and their biology.
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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: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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