Learning Content Management Systems (LCMS) supports e-learning applications with storage and efficient access for e-learning objects (LO)s. ROSA is a LCMS built as a semantic layer on the top of an XML native DBMS, Tamino. Together, ROSA and Tamino, offer instructional designers a semantic view of e-learning content. In this paper, we present ROSA Data Model and Query Language, designed as an e...

In this study, it was investigated whether different bee breeds prefer plant sources to collect propolis. For purpose four honey race (Apis mellifera caucasica, A. m. carnica, syriaca and anatoliaca) naturally have been in Turkey were placed the same isolated apiary; Propolis harvested from these races. chemical contents of alcoholic extractions propolis analyzed by liquid chromatography-tandem...

Kedondong (Spondias dulcis) merupakan tumbuhan tropis yang diketahui memiliki aktivitas antioksidan. Penelitian ini bertujuan untuk menentukan antioksidan ekstrak n-heksana, etil asetat dan metanol daun S. dulcis melalui penangkal radikal superoksida serta mengkarakterisasi senyawa fitokimia pada dengan LCMS/MS. Serbuk dimaserasi metanol. Aktivitas diuji superoksida. Ekstrak n-heksana terbaik n...

This study evaluated the in vitro and vivo free radical scavenging potentials of methanol extract Ficus thonningii leaf its liquid chromatography-mass spectrometer (LCMS) profiling. The qualitative phytochemical screening was carried out results show presence tannins, flavonoids, saponins glycoside triterpenes. Antioxidant activities were reducing power shows a value 0.53 ± 0.007 with significa...

the root of ophiopogon japonicus has been used as a traditional chinese medicine and also a functional food ingredient for a long time in china. in the present study, 17 different homoisoflavonoid compounds were identified in the root extract of o. japonicus by hplc–dad and lcms/ms analyses. the antioxidant activity of the of chloroform/methanol (1:1, v/v), methanol and 70% ethanol extracts, an...

<p>The Majapahit plant is commonly found in Indonesia but rarely used due to a lack of information about its potential. One the secondary metabolites this are flavonoids. Therefore, study aims determine distribution flavonoid compounds plant, particularly their potential as anticancer activty. Leaf material from plants was extracted using maceration technique, while extract were identifie...

2 LCMS feature detection step by step using cosmiq 2 2.1 The Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Combination of mass spectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Detection of relevant masses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 Generation and combination of extracted ion chrom...

Fractionation of crude petroleum ether extract of the leaves of Chenopodium album Linn lead to the isolation of β-sitosterol (1), lupeol (2) and 3 hydroxy nonadecyl henicosanoate (3). Their structures were elucidated by spectroscopic methods such as UV, IR, NMR and LCMS. Compound 2 and 3 were isolated for the first time from this plant.