Judul: Parasit Dalam Sel Darah Merah Musang Luak (Paradoxurus hermaphroditus) di Jawa
Abstrak: This research was conducted to observe the infection of intraerythrocytic parasite of Java common palm civet (Paradoxurus hermaphroditus). Blood sample was collected for four times during 7 weeks. The first blood sample was collected immediately after the common palm civet just arrived from its natural habitat, and then adapted for 30 days before the next blood sampling were taken every week. The results of this study found that the common palm civet was infected by Babesia sp., Theileria sp., and Anaplasma sp. The infection rate from the highest is Anaplasma sp. (0.35 ± 0.05) %, Theileria sp. (0.12 ± 0.05) %, and Babesia sp. (0.03 ± 0.02) % respectively. The mean percentage of Babesia sp. and Anaplasma sp. decreased during the study, while percentage of Theileria sp. increased until the end of study. The sex of common palm civet did not affect the infestation of intraerythrocytic parasites.
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Judul: Studi kasus infeksi parasit intraseluler darah merah pada kerbau lumpur (Bubalus bubalis) dari kecamatan Tenjolaya, Kabupaten Bogor, Jawa Barat.
Abstrak: This study was conducted to observe the infection of intraerythrocytic parasit. There were a total 64 blood sample of four buffaloes from Tenjolaya, Bogor, West Java. Sample was collected twice a week. Thin blood smear on glass slide were made, fixed in methanol,stained with Giemsa 10%. The parasitemia (percent of infected RBCs) was determined by enumerating the number of infected RBCs in relation to the number of 500 uninfected RBCs. Microscopic examination revealed the occurance of Babesia, Theileria and Anaplasma in RBC. Parasitemia in those bufallo were 0.00625 ± 0.009 % for Babesia, 0.058 ± 0.032% for Theileria and 0.230 ± 0.045 % for Anaplasma. Those low infected buffaloes had potential to become carrier and source of Babesiosis, Theileriosis and Anaplasmosis for naive population around.
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Judul: Peran Surfaktan Setiltrimetilamonium Bromida dan Natrium Dodesil Sulfat pada Sintesis ZnO dengan Metode Hidrotermal
Abstrak: Zno crystal is the main preference material in various applications recently, such as in semiconductors, ultraviolet lasers, and catalysts. This study aims to synthesize ZnO with addition of surfactant. ZnO crystals were synthesized by reacting ZnSO4, KOH, and surfactants using hydrothermal method. The first step was to determine the best ratio of ZnSO4: KOH (1:2; 1:3; 1:4, and 1:5) based on X-ray diffraction. The second step was to evaluate the role of surfactan cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfate (SDS) on the synthesis of ZnO crystals. The result of this study showed the best ratio of ZnSO4:KOH was 1:3, based on the least of impurities and the highest degree of crystallinity (85.64%). The addition of surfactant CTAB and SDS in the synthesis of ZnO increased the degree of crystallinity, which were 98.28% and 92.17%, respectively. Based on mathematical calculation using Scherrer equation, the crystal size without surfactant was 32 nm, whereas with CTAB and SDS the crystallited size were 28 nm and 29 nm, respectively. The degree of crystallinity and crystal size indicated that CTAB surfactant produce ZnO crystals with the best characteristics as compared to SDS surfactant or without surfactant.
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