Judul: Kajian Histopatologi Hati, Paru-Paru, dan Ginjal Sapi yang Terinfeksi Coxiella burnetii di Rumah Potong Hewan Terpadu Kota Bogor
Abstrak: Query fever (Q fever) is a zoonotic disease caused by Coxiella burnetii. Domestic ruminants are considered to be the main reservoir of Q fever. The transmission of this disease usually by aerosol and ingestion. This research was aimed to describe and compare the histopathology on liver, lung, and kidney of cattle infected by C. burnetii using Immunohistochemistry and Hematoxylin Eosin staining. This research used 50 samples and each sample consisted of liver, lung, kidney, heart, and spleen was carried out from February to October 2013 at Bogor slaughterhouse. The result showed that we found 5 samples out of 50 samples were positive infected with C. burnetii Imunohistochemically. Histopathological lesions found like focus inflammation, congestion, haemorrhage, fibrosis, focus necrosis, emphysema, pleuritic, and interstitial pneumonia in positive Q fever samples. Similar histopathological changes were also found in negative Q fever samples.
Keyword: Zoonosis, Immunohistochemistry, Hematoxylin Eosin, Coxiella burnetii, Cattle

Judul: Kajian Histopatologi Limpa dan Jantung Sapi yang Terinfeksi Coxiella burnetii di Rumah Potong Hewan Terpadu Kota Bogor
Abstrak: Query fever is a zoonotic disease caused by Coxiella burnetii. This agent infects any kinds of animal including cattle. In many cases report, there are no clinical signs appear during the infection of C. burnetii. Then, it is also difficult to diagnose this disease. The study about infection of C. burnetii in cattle was carried out from February to October 2013 at Bogor Slaughterhouse. The aim of this study was to know the infection of C. burnetii and compare the histopathological finding of spleen and heart of infected cattle. A total of 50 samples of cattle spleen, heart, liver, kidney, and lung were collected, and processed for immunohistochemical and hematoxyllin and eosin staining. The result of immunohistochemical staining showed 5 samples were immunoreactive to polyclonal rabbit anti-Coxiella burnetii antibody FKH IPB in the spleen, liver, and kidney. The histopathological finding indicated hemosiderin pigment deposits, lymphoid follicle depletion, infiltration of lymphocyte, macrophage, neutrophil, and eosinophil cells, and oedema. No lesion appeared in heart with positive infection of C. burnetii, however myocardial degeneration, myocardial regeneration, and myocardial congestion were found in heart with negative infection of C. burnetii.
Keyword: spleen, immunohistochemistry, heart, Coxiella burnetii, cattle

Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: film tipis, sifat optik, litium niobat, chemical solution deposition, kecepatan putar