Judul: Tempat Perindukan Vektor Chikungunya (Aedes spp.) di Kelurahan Pasir Kuda, Kecamatan Bogor Barat, Kota Bogor, Jawa Barat
Abstrak: Prevelance of chikungunya infectious disease transmitted by Aedes aegypti and Ae. albopictus vectors at Bogor is quite high and tend to become an extraordinary outbreak. Study on the breeding site of Ae. aegypti and Ae. albopictus that includes the type of material, colours, form and shape of the container both inhouse and outside house on December 2010 – March 2011 had been conducted by measuring larval index which were container index (CI), house index (HI) and Breteau Index (BI). The results showed that as much as 65,99% indoor water containers were used as breeding site and 34,01% was found at outdoor house water containers. Occurrence of Ae. aegypti was found as much as 82% indoor, while Ae. albopictus were found in outdoor house containers as much as 68,29%. Aedes aegypti was preferable water bath container made of cement with blue colour for breeding site. The three larval indeces i.e CI, HI and BI showed similiar decline changing pattern during period of the survey. Container index (CI) in Pasir Kuda village was catagorized by WHO as high density figure, while as HI and BI were catagorized as medium density figure. Number of CI of Ae. albopictus was significantly correlated with ambient temperature.
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Judul: BioecologyAedesspp. Mosquitoes and the Detection of Chikungunya Virus inPasirKuda Village, West Bogor Dictrict
Abstrak: Chikungunya disease was one of the community health problems at PasirKuda Village with an attack rate of 2.96‰ in 2010. This research was done to study the mosquitoe ecology and to detect the presence of chikungunya virus (CHIKV) in Aedes spp. mosquitoes. Field surveys were done from December 2010 until August 2011 to collect mosquitoes and conduct interview to identify community knowledge, attitudes and practices (KAP) on chikungunya, and then in the laboratory to detect chikungunya virus in mosquito samples using Polymerase Chain Reaction (PCR) technique. The resultsshowed that Ae. aegypti breeding place was not in the collecting and saving water container inside the house, but was in another container outside, Ae. albopictus prefer to breed in natural water container and was categorized in moderate density. Ae.aegypti tend to bite and rest inside the house, while Ae. albopictus tend to bite and rest outside the house. Chikungunya virus was successfully detected only in the female Ae. aegypti which was collected on December 2010. The society’s knowledge about chikungunya prevention was categorized as moderate, however, it was not in line with their actions.
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Judul: Aproksimasi Fungsi Sinus dan Kosinus sebagai Kombinasi Linear dari Fungsi Eksponensial
Abstrak: Salah satu gagasan yang menarik dalam matematika adalah aproksimasi suatu fungsi oleh fungsi lain. Sebagai contoh, fungsi polinom dapat diaproksimasi menggunakan deret Taylor atau fungsi persamaan diferensial dapat diaproksimasi menggunakan deret Fourier. Adapun fungsi yang dapat mengaproksimasi fungsi lain salah satunya adalah fungsi eksponensial. Kemungkinan mengaproksimasi fungsi dengan kombinasi linear dari fungsi eksponensial dari bentuk eˣ, e²ˣ, ... dianggap sebagai perkembangan sejajar dengan gagasan Deret Taylor yang mengaproksimasi fungsi dengan kombinasi linear dari segi fungsi kuadrat. Fungsi sin x dan cos x digunakan sebagai target untuk menilai seberapa baik aproksimasi yang dilakukan oleh fungsi yang diberikan. Aproksimasi fungsi sinus dan kosinus menggunakan hampiran Taylor lebih akurat dibandingkan dengan aproksimasi menggunakan fungsi eksponensial.
Keyword: Aprosimaksi eksponensial, aproksimasi fungsi, aprosimaksi Taylor, fungsi eksponensial