Judul: Parasitemia dan Diferensial Leukosit Kerbau Perah (Bubalus bubalis) Akibat Parasit Darah di Kabupaten Tapanuli Utara, Sumatera Utara.
Abstrak: The purpose of this study was to determine percentage of blood parasite, parasitaemia based on sex category and differential of leucocyte in dairy buffaloes in North Tapanuli regency, North Sumatera. Blood samples were collected from 10 adult female buffaloes and 10 adult male buffaloes using blood smear method. Samples were processed in glass slide, stained with Giemsa 10% and observed using a microscope with 1000x. The parasitaemia were counted for every 500 red blood cells. Differential absolute of leucocyte were calculated with differential relative of leucocyte multiplied by total leucocyte count. The result showed buffaloes infections caused by Anaplasma sp., Theileria sp, and Babesia sp. The highest percentage were caused by triple infections 45% (Anaplasma sp., Theileria sp., Babesia sp.), followed by double infections 30% (Anaplasma sp., Theileria sp.), double infections 10% (Theileria sp., Babesia sp.), single infection 10% (Anaplasma sp.), and the lowest by single infection 5% (Theileria sp.). By the sex of mean value parasitaemia was not showed significantly different (p>0.05). single infection (Anaplasma sp.). Total Leucocyte count about single infection (Anaplasma sp), and lymphocyte count about single infection (Anaplasma sp.), double infections (Theileria sp., Babesia sp.),and triple infections (Anaplasma sp., Theileria sp., Babesia sp.) were showed significantly different (p<0.05).
Keyword: differential leucocyte, blood parasite, parasitaemia

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: Sintesis Nanorod Seng Oksida (ZnO) dengan Metode Sonokimia
Abstrak: Gelombang ultrasonik telah digunakan untuk membantu sintesis ZnO. ZnO terbentuk dari campuran ZnAc dan NaOH. ZnO disintesis dengan variasi konsentrasi ZnAc 0.5 M ( ZnO 1:1 ) dan 1.5 M ( ZnO 3:1 ) yang dicampurkan dengan NaOH konsentrasi 0.5 M. Sampel yang diporoleh dikarakterisasi dengan XRD dan SEM. Karakterisasi difraksi sinar-X menunjukkan bahwa struktur kristal ZnO yang dihasilkan merupakan heksagonal dengan pertumbuhan yang dominan pada orientasi bidang nonpolar a dengan indeks hkl 101. Kristalinitas dan kemurnian kristal ZnO 1:1 lebih baik dibandingkan ZnO 3:1 ditunjukan dengan intensitas puncak difraksi sinar-X yang lebih tinggi, sempit dan tajam. Untuk ukuran kristalit ZnO 1:1 mempunyai rata-rata ukuran kristalit 30.57 ± 4.31 nm sedangkan ZnO 3:1 mempunyai ukuran rata-rata 20.25 ± 7.12 nm. Dari ukuran kristal yang terbentuk partikel ZnO termasuk nanokristal. ZnO 1:1 terbentuk batang-batang nano (nanorods) sedangkan pada ZnO 3:1 tidak terbentuk batang-batang nano (nanorods). Untuk ukuran morfologi, ZnO 1:1 mempunyai rata-rata ukuran butiran kristal 230 nm dan lebih besar dibandingkan ukuran ZnO 3:1 yang mempunyai rata-rata ukuran butiran kristal 50 nm.
Keyword: nanorot, sintesis, sonokimia, ZnO