Judul: Adaptasi e-learning pada sisi server untuk aplikasi m-learning
Abstrak: Mobile learning (m-learning) saat ini telah menjadi kecenderungan baru para pelajar (learner) dalam proses pembelajarannya. Hal ini disebabkan perkembangan perangkat telekomunikasi bergerak (mobile devices) yang sangat cepat, fitur canggih, harga murah dan perkembangan teknologi wireless yang terus berkembang. Pembelajaran secara elektronik (e-learning) yang herkembang lebih awal dan telal~ memenuhi kebutuhan para pelajar ini juga mengalami perkembangan cukup pesat. Meskipuu begitu, m-learning diperkirakan akan berkembang lebih cepat daripada e-learning walaupun terdapat beberapa keterbatasan pada mobile devices seperti koneksi yang lama, ukuran layar yang kecil dan platj%rnt yang berbeda.
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Judul: Rancang Bangun Penyesuaian Konten Web Mobile Learning Berdasarkan Konteks
Abstrak: Mobile Learning is a learning activity whose learners do not have to stay on a fixed location for a specific amount of time. In more recent times, not every mobile-based web application can successfully detect computational environment on client side. For mobile learning especially, failure to support multiple platforms can deteriorate learning process. This research proposed a mobile learning prototype application that could detect client’s computing environment by analyzing handset features and client’s current network speed state. Handset features detection can be achieved by using HTTP User Agent, while network speed state detection can be managed by using HTTP request delay detection. It also implemented the possibility of using JavaScript both as a server side scripting language with Node.js and document oriented database system using MongoDB.
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Judul: Waxes, policosanols and aldehydes in sugarcane (Saccharum officinarum L.) and okinawan brown sugar (kokuto)
Abstrak: Waxes, long chain alcohols and aldehydes were found in several variants of sugarcane (Saccharum officinarum L.) and Kokuto, a non-centrifuged Okinawan cane brown sugar. Long chain alcohols, policosanols, have been reported to have beneficial effect to human health. The composition of wax in sugarcane was analyzed using HPLC with an evaporative light scattering detector. Sugarcane wax composed of 55–60% aldehydes, sterol esters and wax esters, 32–40% alcohols, and small amounts of triacylglycerols, acids and sterols. Extraction of policosanols performed effectively with hexane and methanol (20:1 v/v), while that of long chain aldehydes was with chloroform and methanol (2:1 v/v). Their composition was determined using GC with a flame ionization detector, whereas their compounds were identified using GC-MS. Sugarcane rinds contained up to 500 mg policosanols and 600 mg aldehydes per 100 g sample of Ni 22 cultivar. The content of policosanol and long chain aldehyde in Kokuto was influenced by its production systems. Compositional analysis of the end product confirmed the presence of policosanols and aldehydes up to 85 mg and 8 mg respectively per 100 g sample of Kokuto A, a product of brown sugar manufacture with open pan heating system. Octacosanol and octacosanal were found to be the major wax components in both sugarcane and Kokuto samples. This study revealed significant difference in content and composition of waxes, policosanols and long chain aldehydes between sugarcane parts, cultivars and harvesting times; also between Kokuto types and production methods.
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