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: Kajian Query Fever pada Sapi di Rumah Potong Hewan Cibinong: Histopatologi Organ Limpa dan Jantung
Abstrak: Query (Q) fever is a zoonoses caused by Coxiella burnetii agent and it has been almost widespread around the world. The ruminants are highly risk animal infected for Q fever disease. The study of Q fever disease on heart and spleen of cattle histopathologically was carried out from January to October 2013 at Cibinong slaughterhouse and histopathology laboratory, Faculty of Veterinary Medicine, Bogor Agricultural University. Samples used were heart and spleen of 50 randomly slaughtered cattle. Immunohistochemical method was done to determine the immunoreactive and non immunoreactive of samples. The results showed that 9 samples were immunoreactive and 41 samples were not immunoreactive to anti C. burnetii antibody. The lesions of spleen indicated depletion of white pulp, congestion of red pulp, and accumulation of inflammatory cells. The lesions of heart revealed degeneration of heart muscle and accumulation of inflammatory cells. These results showed that there is no specific differences histopathologically between immunoreactive and non immunoreactive samples of heart and spleen of cattle due to Q fever.
Keyword: Q fever., immunohistochemistry, Coxiella burnetii, cattle

Judul: Pembuatan Sel Surya Berbasis Film Ferroelektrik Barium Strontium Titanate (Ba0,5Sr0,5TiO3)
Abstrak: Growth of films Ba0,5Sr0,5TiO3 (BST) 1 M has been done with variation of annealing in hold time 8 hours, 15 hours, 22 hours, and 29 hours at constant temperature 8500C, above Si (100) substrate p-type, by using the sol-gel process method which followed with spin coating process at 3000 rpm for 30 seconds. Optics spectroscopy shows that BST film solar cells with annealing hold time 8 hours, 15 hours, and 22 hours, works effectively in wavelength ≥ 700 nm absorption range. Yet for sample with annealing hold time about 29 hours effectively absorb in ≤ 700 nm wavelength range. It obtained BST film refractive index at range 2.0 to 7.0 to wavelength range ±370-870 nm. Band gap BST film value based on annealing hold time 8 hours, 15 hours, 22 hours, and 29 hours respectively 2.60 eV; 3.12 eV: 3.24 eV, and 2.66 eV. Electrical conductivity value which obtained, indicate that the BST film is classified as semiconductor material with conductivity order 10-5-10-4 S / cm. The result of I-V photovoltaic characterization shows the BST film potentially to be a solar cells device with efficiency according to the annealing hold time 8 hours, 15 hours, 22 hours, and 29 hours in a row are 2.68x10-5%, 3.51x10-5%, 4.53x10-5% and 3.22x10-5%
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