Judul: Efikasi Pencegahan Hiperkolesterolemia Dengan Kombinasi Emping Ketan Hitam dan Dadih Secara In Vivo pada Tikus Percobaan
Abstrak: Hiperkolesterolemia merupakan salah satu faktor risiko terjadinya penyakit kardiovaskular. Penelitian ini bertujuan menganalisis efek emping ketan hitam dan dadih sebagai pencegahan hiperkolesterolemia secara in vivo pada hewan coba tikus. Penelitian ini menggunakan 15 ekor tikus putih yang dibagi menjadi tiga kelompok perlakuan, yaitu kelompok kontrol negatif (A), hiperkolesterolemia (B), dan pencegahan hiperkolesterolemia. Penelitian dilaksanakan selama 5 minggu, tikus kelompok kontrol negatif (A) diberi aquades, kelompok hiperkolesterolemia (B), diberi diet kolesterol 1%, dan kelompok pencegahan kolesterolemia (C) diberi emping dadih. Darah tikus diambil pada minggu ke 2, 4, dan 5 dan dianalisis kadar kolesterol total, LDL, HDL, dan trigliserida. Hasil penelitian ini menunjukkan pemberian emping dadih berpengaruh nyata terhadap pencegahan hiperkolesterolemia. Kelompok yang diberi emping dadih menunjukkan pencegahan kenaikan kadar LDL dan kolesterol hati, namun tidak berpengaruh terhadap HDL. Kandungan lemak yang tinggi pada emping dadih membuat kadar trigliserida yang meningkat.
Keyword: black, glutinous rice, cholesterol, dadih, HDL, LDL

Judul: Gambaran Histologi Organ Hati Tikus yang Diberi Dadih dan Emping Ketan Hitam sebagai Pencegahan Hiperkolesterolemia
Abstrak: Hiperkolesterolemia dapat memicu berbagai gangguan kesehatan termasuk pada hati yang merupakan organ utama untuk metabolisme kolesterol. Contoh pangan fungsional yang berpotensi mencegah hiperkolesterolemia yaitu dadih dan emping ketan hitam. Penelitian ini bertujuan untuk mengetahui efek dadih dan ketan hitam sebagai pencegah hiperkolesterolemia terhadap histologi organ hati tikus. Tikus dibagi menjadi 3 kelompok perlakuan yaitu kelompok A sebagai kontrol negatif, kelompok B sebagai kontrol positif, dan kelompok C sebagai kelompok pencegahan. Tikus diberikan perlakuan selama 35 hari dan kemudian dinekropsi untuk pengambilan sampel organ hati. Organ hati kemudian diproses menjadi preparat histologi dengan pewarnaan Hematoksilin-Eosin. Gambaran histologi umum dan kerapatan jaringan organ hati diamati kemudian dianalisis secara deskriptif dan statistik. Hasil pengamatan histologi menunjukan bahwa organ hati Kelompok B dan C mengalami degenerasi lemak dan nekrosis dengan persentase kerusakan pada kelompok B lebih tinggi dari kelompok C. Kelompok B memiliki tingkat kerapatan parenkim hati yang paling rendah sedangkan kerapatan parenkim hati kelompok C sama dengan kontrol negatif. Hasil penelitian ini menunjukkan bahwa dadih dan ketan hitam sebagai pencegahan hiperkolesterolemia dapat mengurangi degenerasi lemak dan nekrosis pada sel hati serta mempertahankan kerapatan jaringan hati.
Keyword: black glutinous rice, dadih, hypercholesterolemia, liver histology

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