Judul: Keanekaragaman Jenis Burung pada Beberapa Cluster Perumahan di Sentul City, Bogor Jawa Barat
Abstrak: Sentul City held the eco-city concept and has a unique landscape with a variety of topography. This area has a variety of vegetation structure and composition which are distributed in several residential clusters. One of the biodiversity that can be found in this area is bird. Variety of habitat types will influence the bird diversity in each area (Blendinger and Ricardo 2001). The objective of this research were (1) to describe the habitat of birds, (2) to examine bird diversity, (3) to compare the bird composition among cluster types, (4) to examine vertical and horizontal distributions of birds in several vegetation and tree architecture, (5) to examine the influence of tree architecture on tree utilization by bird. The research was conducted in Sentul City from June to September 2011, in the area of research are five residential cluster which are selected by the age of cluster and composition of vegetation, and one location is a boulevard. The habitat condition and vegetation (dominant vegetation, tree height, type of tree architecture, vertical and architecture utilized side) are described with qualitative data and collected by direct survey. Bird data is collected by MacKinnon species list method (MacKinnon et al. 1998) with 10 species of birds each list. Bird diversity analyzed by using species area curve, meet frequence and index of similarity. Utilization of vegetation using descriptive analysis. A total of 42 species of bird from 24 families were recorded in this research. There were 6 species cannot find and 25 new species recorded compare by the result of AMDAL Bukit Sentul at 2000. The highest bird diversity found in Northridge cluster with 33 species of bird and the lowest bird diversity found in Venesia-Pasadena-Sakura cluster. Based on MacKinnon species list result, showed the leveled out of curve. It showed there was nothing increment of bird species at research location. Some of birds have a high number of meet frequence in one location, but cannot find in other location. It showed there was a low distribution of bird species. The highest similarity index was found between Bali cluster and Venesia-Pasadena-Sakura cluster (IS=0.76). In general, most of bird can be found at 2/3 of tree crown except in Argenia cluster. Midlde branching part of the tree crown are the most utilize part by bird. There are management method that can impelement, (1) provide and defence birds habitat, (2) planting a favourite vegetation for birds, (3) establish protected area for birds, (4) research on bird diversity in other locations, (5) intensively monitoring on bird diversity, (6) Sosialization in the importance of bird diversity, (7) develope an environmental education programs.
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Judul: Keanekaragaman jenis burung pada beberapa tipe habitat di areal hutan lindung KPH Madiun perum perhutani unit II Jawa Timur
Abstrak: The objectives of this study are: (1) to make a list of bird species at several types of habitats, (2) to compare birds species diversity at several types of habitat, and (3) to examine factors that influence birds species in the study area. The research was done in four types of habitats in the protected forest area of Kesatuan Pemangkuan Hutan (KPH) Madiun, namely, natural forest, mahogany forest (Swietenia macrophylla), take forest (Tectona grandis) and sonobrit forest (Dalbergia sisso) from June to August 2007.
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Judul: Antiprotease Properties of Goat’s Milk Againts the Protease of SARS-CoV-2
Abstrak: Susu kambing diyakini memiliki efek penghambatan terhadap protease SARS CoV-2, khususnya protease utama (Mpro) dan protease seperti papain (PLpro), meskipun hal ini belum diteliti. Penelitian ini bertujuan untuk menganalisis daya hambat susu kambing segar dan pasteurisasi terhadap Mpro dan PLpro. Uji daya hambat dilakukan dengan mengukur aktivitas Mpro dan PLpro dengan ada tidaknya variasi konsentrasi susu kambing Peranakan etawa segar atau pasteurisasi. Data kemudian dianalisis dengan metode deskriptif. Hasil penelitian menunjukkan bahwa nilai IC50 susu pasteurisasi dan susu segar terhadap Mpro diprediksi lebih tinggi dari 0,1%, sedangkan nilai IC50 susu segar dan pasteurisasi terhadap PLpro berturut-turut adalah 0,025% dan 0,066%. Hal ini menunjukkan bahwa susu menghambat lebih baik terhadap PLpro daripada Mpro dan perlakuan panas membuat senyawa anti-protease susu tidak stabil. Selanjutnya, simulasi docking molekuler mengungkapkan bahwa laktoferin berikatan dengan PLpro lebih kuat dan melibatkan residu tertentu dalam rongga pengikatan substrat. Secara keseluruhan, temuan ini mengonfirmasi potensi penggunaan susu kambing untuk memblokir replikasi SARS-CoV-2 melalui penghambatan protease.
Keyword: goat’s milk, main protease, papain-like protease, pasteurization, SARSCoV-2