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: Perilaku Menggigit dan Istirahat Vektor Penyakit Chikungunya di Kelurahan Pasir Kuda Kota Bogor
Abstrak: In 2010, outbreak of Chikungunya fever was occured in Bogor with an incidence of almost 372 cases. The disease was transmitted by mosquito, however there were no information about the vectors activity such as biting and resting behaviour. This research was aimed to measure the biting and resting behaviour of vectors of Chikungunya at indoor and outdoor. This study was carried out by the methods mosquitoes landing and resting collection at Pasir Kuda Bogor from 06.00 am to 18.00 pm in December 2010 to March 2011. The collected mosquitoes were identified and analyzed. The result showed that the biting activity of Ae. aegypti was peak indoor at 11.00 am to 12.00 pm (13,63 mosquito/man/hour) and outdoor at 10.00 am to 11.00 am (0,25 mosquito/man/hour). While Ae. albopictus was peak indoor at 15.00 pm to 16.00 pm (0,25 mosquito/man/hour) and outdoor at 15.00 pm to 16.00 pm (2,38 mosquito/man/hour). At period of December to March, Ae.aegypti was found resting indoor, while in December to January it was found outdoor. In addition, Ae. albopictus was found resting outdoor in December to March. However, in December it was found resting indoor.
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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