Judul: Beberapa aspek biologi caplak anjing (Rhipicephalus sanguineus) dan pengaruh pestisida sumilarv 0,5 G terhadap larva caplak
Abstrak: Penelitian ini bertujuan untuk mengetahui beberapa aspek biologi caplak anjing (Rhipichepalus sanguineus) seperti bobot caplak, bobot telur, jumlah telur, daya tetas, masa pra bertelur (pra oviposisi), masa bertelur (oviposisi) dan masa menetas caplak dalam kondisi laboratorium. Selain itu penelitian ini juga bertujuan untuk mengetahui pengaruh pemberian pestisida Sumilarv 0,5 G terhadap stadium larva caplak.
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Judul: Masalah infeksi caplak rhipicephalus sanguineus pada anjing
Abstrak: Rhipicephalus sanguineus (Latreille, 1806) adalah caplak penghisap darah pada anjing. Caplak ini dapat di- temukan di daerah Lintang Utara 50° dan Lintang Selatan 35°. Caplak ini tergolong caplak berumah tiga dan induk semang utamanya adalah anjing, tetapi secara insidentil stadium larva dan nimfanya dapat pula menyerang hewan lainnya dan manusia. Daur hidup caplak ini sangat bervariasi, tergantung pada suhu dan kelembaban, yang terpendek berlangsung se lama kurang lebih 2.2 bulan dan yang terpanjang berlangsung selama kurang lebih 7 bulan. Caplak betina dewasa yang akan bertelur, akan mencari tempat perlindungannya di tanah. Jumlah telur tersedikit yang dihasilkan 100 butir dan yang terbanyak dapat mencapai jumlah 5414 butir. Caplak betina akan mati beberapa hari kemudian setelah mengeluarkan telurnya yang terakhir, sedangkan ceplak jantannya akan mati mengering menempel pada tubuh induk se mang setelah sebelumnya berkopulasi dengan caplak betina di permukaan tubun induk semang. Peranan caplak ini dalam kesehatan anjing amat pen ting, karena selain sebagai ektoparasit penghisap darah, ia juga bertindak sebagai vektor penyakit yaitu ehrlich- iosis, Marseilles fever, spotted fever group, Q fever, babesiosis, Crimean haemorrhagic fever dan anaplasmosis. Penanggulangan terhadap caplak ini dapat dilakukan dengan dua cara yaitu secara kimiawi dengan menggunakan pestisida dan sanitasi lingkungan. Penanggulangan ini tidak efektif jika hanya dilakukan sekali saja, karena reinfestasi caplak ini selalu saja terjadi sewaktu-waktu…dst
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Judul: Characteristic of Overshooting Top (OT) Based on  Himawari  8  Satellite  as  a  Convective  Cloud  Feature  that  Generates  Extreme Weather in the Java Island Region
Abstrak: Overshooting Top (OT) is a feature at the top of a convective cloud that is associated with extreme weather. Research on OT in tropical Indonesia is still very limited. The existence of geostationary satellites with wide area coverage and fast frequency observations is useful for observing the fast dynamics of the OT life cycle. Therefore, this study intends to analyze the relationship between OT and extreme weather, updraft and thermodynamic conditions of OT when extreme weather occurs, the best objective method for detecting OT in the day time and night time, and the spatiotemporal distribution of OT in the tropical region of Java Island during the 2018-2021 period. Based on visual analysis using visible channel and Himawari 8 sandwich products, 87% of extreme weather events in Java were accompanied by the appearance of OT. It indicates that the presence of the OT pattern is a convection cloud pattern or feature that is closely related to extreme weather events for the Java Island region. The existence of a time lag between the appearance of OT and extreme weather events on Java Island indicates that the OT of convection cloud can be used as a precursor or nowcasting for the appearance of extreme weather. Most of the convective cloud OT features during extreme weather events on Java Island have altitude that were only able to exceed the altitude of the equilibrium level and few were able to exceed the tropopause level of 9 km – 16 km. The difference in atmospheric conditions during extreme weather events on Java Island, which is in the tropics and subtropics, is a strong and unstable convective energy condition characterized by a larger CAPE, as well as unstable KI, LI, SI and TTI values. It is offset by kinematic factors in the form of a weak vertical wind shear (bulk wind shear 0-6 km) and a higher freezing point height. The difference between extreme weather events in the Java Island region and other tropical regions compared to subtropical regions is the strong updraft speed of convection clouds. The IRW Texture COMB algorithm based on the IRW-Texture Gradient modification and the COMB algorithm shows a significant increase in quality for detecting OT and non-OT pixels in Java. Rainy days with rainfall > 50 mm/day are very common in areas with an altitude of > 500 m. On the other hand, the level of convection activity which is indicated by the presence of OT and lightning is significantly reduced in this area. OT of convective clouds appear more frequently during the DJF season and less frequently during the JJA season. OT often appears during the day time and rarely at night time. Most OTs appear in the central part, away from the south and north coasts of Java Island during the day, while OTs that appear near the south and north coasts of Java Island can appear in the morning or afternoon.
Keyword: convective clouds, extreme weather, Overshooting Tops, Himawari 8 Satellite