27 research outputs found

    Implementasi Model BCCT ( Beyond Center And Circle Time ) Dalam Pembentukan Nilai Agama Moral Anak Usia Dini

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    Objective: Education of religious and moral values needs to be instilled from an early age because it will affect children's behavior and attitudes that are better and more focused. The bcct learning model (beyond center and circle time) is a child-centred learning process that supports the process of forming children's morals. The aim of the researcher is to examine the journal results of a study to determine the implementation of the BCCT model (beyond center and circle time) in the formation of moral religious values for early childhood. Methods: Research method with literature review. There are approximately 20 primary journal references in the form of 15 national journals and 5 international journals in the 2015-2021 period. The sample is a journal selected with keyword criteria 1) bcct learning model 2) religious and moral values for early childhood, 3) play center. Results and discussion: proves that the bcct learning model supports the formation of children's religious and moral values such as children being diligent in worship, polite, disciplined, honest, responsible and independent. Conclusion: the implementation of the bcct model (beyond center and circle time) has an effect on the formation of moral religious values for early childhoo

    A new benzothiazole derivative by degradation of pheomelanins with alkaline hydrogen peroxide

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    Oxidation of natural and synthetic pheomelanins with alkaline H2O2 at room temperature led to the formation of a major product (up to 25% yield w/w) which was identified as the novel 2-carboxy-4-hydroxy-6-(2-amino-2-carboxyethyl)benzothiazole (6)

    The catecholic antioxidant piceatannol is an effective nitrosation inhibitor via an unusual double bond nitration

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    Piceatannol (1) was more effective than caffeic acid, an established antinitrosating agent, in inhibiting N-nitrosation of 2,3-diaminonaphthalene. Product anal. of the reaction mixt. of 1 (20 mM) with nitrite ions (80 mM) at pH 3.0 and at 37 showed conversion to a single major nitration product, (E)-3,3',4,5'-tetrahydroxy-b-nitrostilbene (2) (68% yield). This would result from an unexpected nitration at the double bond sector via the 4-phenoxyl radical, which was analyzed at the unrestricted DFT level
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