Judul: Deteksi keberadaan virus avian influenza Subtipe H5 pada kucing jalanan (Felis silvestris catus) Di beberapa pasar tradisional Di wilayah Kota Bogor
Abstrak: Avian influenza or bird flu is disease of poultry caused by influenza type A virus. This disease can also infects some other animals : pig, horse, seal, fox tiger and cat. Bogor is endemic area of avian influenza in poultry. In Bogor city, stray cat usually roaming around in several traditional markets in Bogor city, especially that selling of life bird and poultry meat. The aim of this research is to study avian influenza infection in stray cat and tradisional market in bogor city. Eigthy two samples of serum and rectal swab were taken from stray cat wich roaming around in several traditional markets in Bogor city. Serological examination were done by HI test. Virus isolation and identification were done by inoculated the rectal swab to SPF egg and identified by HA test and PCR. Result of HI test showed 16 positive out of 82 samples, sera virus isolation and identification by HA test were and PCR showed negative result. These data revealed that cats in traditional markets may be were infected by H5N1 virus, but not yet shedding the virus in feses.
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Judul: Kajian Persistensi dan Penularan Virus Avian Influenza di Peternakan Itik menggunakan Teknik Real Time RT-PCR
Abstrak: Highly pathogenic avian influenza (HPAI) H5N1 virus has been a major threat to poultry industry and human health in Indonesia over the past several years. The existence of backyard and free-range duck raising system has been hypothesized to play role in the disease circulation. This study investigated H5 virus infection and circulation occurring in three types of free-range duck farms in Indramayu District, West Java, Indonesia from September 2009 to March 2010. One hundred and eighty pairs of cloacal-oropharyngeal swab samples from sentinel ducks placed in six farms of the three farm types were collected every month for seven months period and screened in pools for influenza A virus. In addition to the sentinel ducks, 30 non-sentinel ducks were included at the first and the last sampling month. Of the total 648 pool samples collected for seven months, 91 pools (14%) were found influenza A positive at repeated events. The virus was more commonly found on type 1 farms followed by type 2 and 3 farms. The individual swab samples of influenza A positive pools were tested for H5 subtype. Of the total 91 pools of influenza A positive samples, 455 individual samples were tested for H5 subtype and 50 (11%) individual samples were found H5 positive. The H5 subtype was found at certain points of sampling time and was more commonly found in type 2 farms followed by type 1 and was not found on type 3 farms. The H5 virus was likely to be transmitted within duck farm but was unlikely to be maintained for a long time.
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Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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