The use of the chicken eggshell with its membrane as low-cost adsorbent had been done to the removal of synthetic dyes in aqueous solution. Adsorption method in the batch system was done to adsorb Methylene Blue and Indigo Carmine as the cationic and anionic dyes. Some parameters were studied such as pH, contact time, initial concentration of dyes and mass of ES+M to find the optimum adsorption. The functional group of ES+M like hydroxyl, amine, carboxyl and thiol were used to binding the dyes. The characteristics of ES+M were determined by FTIR and XRF to analyzed functional group and elements composition before and after adsorption. The adsorption capacity optimum of ES+M to adsorb Methylene Blue was 11.54 mg/g with % RE 92.34% in 30 minutes, and Indigo Carmine was 8.04 mg/g with % RE 64.34% in 15 minutes.
The aim of this study is to investigate antioxidant activity and total phenolic content of ethyl acetate fraction of Sembung leaves. Sembung (Blumea balsamifera L.) is a plant that has the potential as an antioxidant because it contains secondary metabolites of alkaloids, steroids, flavonoids, saponins, and phenolic compounds. In this study, antioxidant activity was tested by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) for free radical scavenging activity assay. Evaluation of total phenolic content was tested by using the Folin-Ciocalteau method. The results showed that the ethyl acetate fraction of Sembung leaves possess showed medium antioxidant activity with IC50 valueof 221.821 compare with reference standard ascorbic acid with IC50 value 68.25 ppm. The ethyl acetate fraction of Sembung leaves has a total phenolic content of 161.101 mg GAE/g. This study provided that Blumea balsamifera leaves possess antioxidant.
The purpose of writing is to explain the theory teaching of design and application of storyboard. That has not been used in developing the character of children aged 6-8 years, during this time the media used in developing the character of the child is carried out through flannel board media in teaching Indonesian children. A Storyboard is teaching media to design a variety of images in the development of children's characters. Thus making the design a more enjoyable and interesting storyboard. Storyboard design can be used offline that facilitate face to face teaching. Storyboard makes teaching material the form of a slide on the computer. teaching that combines text, images, and multimedia. Which aims to develop character education in early childhood.
Berdasarkan fakta yang peneliti temukan di lapangan, pada saat peneliti melakukan observasi pada Taman Kanak-kanak umumnya ternyata masih kurang optimal dalam pengembangan nilai agama dan moral pada anak usia dini. Dengan kenyataan kurangnya pelaksanaan metode-metode yang dilakukan. Jenis penelitian ini adalah dengan pendekatan kualitatif menggunakan format deskriptif yaitu dengan metode observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan tentang implementasi nilai agama dan moral melalui metode esensi pembinaan prilaku di Taman Kanak-Kanak Lab. School Universitas negeri Padang telah dilaksanakan dengan baik terlihat dari cara anak mengenal tuhan, mengenal ibadah kepada Allah SWT, serta berakhlak yang baik
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