Judul: Analisis kinerja layanan internet pada jaringan Institut Pertanian Bogor
Abstrak: Pada masa awal perkembangannya, Internet hanya mampu menyampaikan informasi berupa teks statis dalam format Hypertext Markup Language (HTML). Internet kini telah mampu menyampaikan informasi dalam berbagai format media, seperti teks, gambar, suara, bahkan video. Perkembangan teknologi nirkabel sebagai media komunikasi data banyak dimanfaatkan untuk membangun fasilitas access point yang memudahkan pengguna mengakses Internet. Dan pada akhirnya mengakibatkan semakin banyak pengguna yang mengakses Internet pada saat yang bersamaan. Penggunaan berbagai format media dan kemudahan akses menggunakan teknologi nirkabel berdampak pada semakin meningkatnya penggunaan bandwidth. Institut Pertanian Bogor (IPB) yang semakin intensif menerapkan teknologi nirkabel sebagai sarana peningkatan kualitas pendidikannya, serta peningkatan penggunaan peralatan mobile di lingkungan IPB untuk mengakses Internet berdampak pada meningkatnya penggunaan bandwidth yang dimiliki IPB. Penelitian ini bertujuan untuk mengetahui komposisi penggunaan Internet di lingkungan IPB, mengukur kinerjanya, serta melakukan analisis kinerja sehingga didapatkan suatu kesimpulan yang dapat dijadikan bahan rekomendasi bagi IPB untuk menjaga bahkan meningkatkan kualitas layanan Internetnya.
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Judul: Analisis Penggunaan Layanan Jaringan Internet IPB
Abstrak: Bogor Agriculture University (IPB) has implemented internet network technology to support education. This study aims to determine patterns of IPB internet network service usage based on application protocols that are accessible through the network and the composition of websites that are frequently visited by IPB academic community. The data used in this study is IPB internet traffic, which were obtained through measurements using Wireshark. The first results show that the observed application protocol traffic has a proportion as follows: HTTP is 87.41%, SSL protocol is 11.27%, FTP protocol is 0.09%, FTP-data protocol is 0.66%, and SMTP merged with POP is 0,57%. HTTP is the most popular protocol used in IPB network. The other results of this study also show the composition of websites visited by IPB academic community. The portion for commercial website is 88.35%, where as the portion for the website that supports educational process is 8.15%. We also obtained information that IPB internet users access to pornography sites at 1.4%. Therefore efforts need to be made to increase the use of IPB internet network services for education.
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Judul: Systematics of Desmos (Annonaceae) in Malesia
Abstrak: Desmos is a woody climbing genus of Annonaceae which has been widely used as traditional medicine in several countries such as China, Indo-China, Thailand, and Peninsular Malaysia to treat dysentery, vertigo, fever, and postpartum. Phylogenetic studies on Desmos showed a close relationship between Desmos and Dasymaschalon. They share similar moniliform monocarpic fruits, but their flowers are different. It has been debated among Annonaceae researchers whether both genera should be treated as the same or distinct genus. Therefore, investigation on the taxonomic delimitation of Desmos species and Dasymaschalon will be necessary. Plastid genome (plastome) identification, leaf epidermal section of Desmos species and Dasymaschalon species, a taxonomic revision of Desmos in Malesia using morphological data, the spatial distribution of Desmos species in Malesia, and morphological and genetic variation in Desmos chinensis population using ISSR marker were used to investigate taxonomic delimitation of Desmos. Plastome study of Desmos chinensis and Dasymaschalon dasymaschalum was carried out to determine the origin, evolution, phylogenomics, and identify marker candidates for Desmos and Dasymaschalon or with other genera in Annonaceae. We discovered that the plastome of Desmos chinensis was circular with the size of 167,677 bp (smaller than Dasymaschalon dasymaschalum), consist of 111 genes, including 78 protein-coding genes, 29 transfer RNAs, and 4 ribosomal RNAs. The plastome showed a typical quadripartite structure, i.e., large single copy (LSC), small single copy (SSC), and two inverted repeats (IRs). The plastome of Dasymaschalon dasymaschalum was 191,488 bp in length, which also exhibited a typical quadripartite structure (LSC, SSC, and two IRs). Desmos chinensis and Dasymaschalon dasymaschalum showed different copies of accD, ndhD, ndhF, rps18, and ycf2. Protein coding genes of rpoB, rpoC1, rbcL, matK, rpl32, infA, and rpl36 were identified based on nucleotide diversity, sequence variability, and parsimony-informative sites. The genes are defined as molecular marker candidates of plastome for phylogenetic, barcoding, and population genetic research. We predicted that Desmos chinensis and Dasymaschalon dasymaschalum separated at ca. 64 million years ago during the Paleocene. Leaf anatomical feature study was carried to support the taxonomic delimitation of interspecific Desmos and intergeneric of Desmos and Dasymaschalon. Leaf anatomy in the paradermal section of 20 taxa (12 species of Desmos, eight species of Dasymaschalon) have been carried out. According to the leaf epidermal section, Desmos and Dasymaschalon are two distinct genera mainly distinguished based on the anticlinal wall undulation of epidermal cells and supported by variation of the crystal type and size. The anticlinal wall undulation of Desmos was almost straight to slightly wavy and never sinuous; meanwhile, Dasymaschalon varies from almost straight to deeply sinusoid. The crystals of Desmos consist of rhombohedral, druse type A, and druse type B crystals, whereas Dasymaschalon has prism, druse type A, druse type B, and druse type C crystals. The recent taxonomic revision using the morphological data was mainly based on the examination of about 1374 specimens from BO, L, WAN, ANDA, SING, SAN, K, P, HUH herbaria. The Desmos species in Malesia consists of eight species: D. acutus, D. chinensis, D. chryseus, D. dunalii, D. pedunculosus, D. subbiglandulosus, two new records: D. lawii and D. macrocarpus, and one
Keyword: Dasymaschalon, Desmoid clade, Magnoliid, plastid genome, phylogenomics analysis