Judul: Peranan nyamuk sebagai vektor Dirofilaria immitis pada anjing
Abstrak: Dirofilaria immitis adalah cacing jantung yang hidup dalam ventrikel kanan dan arteri pulmonalis dari anjing; namun secara alamiah cacing ini dapat ditularkan kepada kucing, rubah dan karnivora yang lain. Cacing ini termasuk kelas Nematoda, famili Filariidae dan genus Dirofilaria, dengan bentuk tubuh langsing, berwarna putih dan daur hidupnya tidak langsung. Penyebarannya meliputi daerah beriklim sedang dan tropis seperti Timur Jauh, Pasifik, Afrika Utara dan Tengah, Australia serta Amerika Utara dan Selatan. Di Indonesia cacing ini jarang ditemukan. Nyamuk dari genus Anopheles, Culex, Aedes dan Mansonia merupakan vektor yang utama dari cacing jantung ini. Beberapa jenis pinjal seperti Ctenocephalides atau Pulex ternyata juga mampu menjadi vektor, meskipun kejadiannya jarang ditemukan. ...
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Judul: Potensi Nyamuk Aedes albopictus (Diptera : Culicidae) sebagai Vektor Dirofilaris immitis (Nematoda : Filariidae) pada Anjing
Abstrak: Dirofilaria i~nnli/is( Nematoda : Filariidae) merupakan penyebab penyakit cacing jantung pada anjing dan hewan peka lainnya. Caciny ini memerlukan nyamuk sebagai tempat untuk melanjutkan siklus hidupnya sampai mencapai stadium infektif (L3) dan sekaligus sebagai vektor penyakit dirofilariasis. Salah satu jenis nyamuk yang dapat berperan sebagai vektor adalah Aedes albopicttis. Hasil penelitian menunjukkan bahwa minat gigit Ae. albopicrus adalah 48.9% (pada anjing reservoar dengall angka mikroiilaremia 42.000/m1) dan 62.3% (pada anjing reservoar denpan angka mikrofilarernia 16.100/1111). Tingkat mortalitas nyamuk adalah 42% (42.000/ml) dan 52.8% (16.100lml). Indeks efisiensi vektor (perbandingan antara jumlah larva infektif dengan mikrofilaria di dalam tubuh nyamuk) adalah 7.46%. Perkembangan mikrofilaria menjadi larva infektif (L3) terjadi dalam waktu 10-1 5 hari.
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Judul: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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