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Research to find new energy source is still an intensive work by researchers in this field. One of the energy sources with no negative impact to environment is solar energy. Solar cell is used to convert solar energy to electrical energy. The electrically powered solar cell in direct current (DC) power is not suitable for our daily office equipment since they need the alternating current (AC) power. This research has succeeded in realizing a solar cell automation tool based on Arduino Uno with input from solar energy, from which output AC voltage can be used for the needs of household appliances and office equipments. Output power of this tool is approximately 700 W, which can turn on the lights, charge the hand phones, laptops, and so forth.

Purpose – The objective of the present study was to determine the effect of monosodium glutamate (MSG) administration to pyramidal cells necrosis on the cerebral cortex of Wistar male rats (Rattus norvegicus).

Design/Methodology/Approach – This research was a laboratory quasi-experiment study with post-test control group design on 24 male Wistar rats (Rattus norvegicus) aged 8-10 weeks, weighted 200 ± 10 gr, divided into 4 groups (GI or control group, GII treated with MSG dose 6 mg/grbb/day, GIII 12 mg/grbb/day, and GIV 24 mg/grbb/day) for 21 days consecutively. Pyramidal cells observed in 10 field of view. The Kruskal-Wallis test and Mann Whitney tests were used to analyze the data.

Findings – There were significant differences between pyramidal cells necrosis numbers between control and the treatment groups. MSG doses 6, 12, and 24 mg/grbb/day developed the pyramidal cells necrosis in the cerebral cortex (p < 0,005).