The purpose of this research is to identify and analyze the influence of job work stress, self-efficacy, and creativity on the employee’s performance of the Regional Public Service Agency at RSUD Djasamen Saragih Pematangsiantar. This research is explanatory, namely research that aims to explain the relationship between variables that have been determined as variables to be studied. The data used in this study are primary data and secondary data. The data analysis method used is quantitative descriptive using multiple linear regression. The population in this research was 72 employees. The number of samples in this research was 72 employees with saturated sampling data collection techniques. The result showed that work stress, self-efficacy, and creativity significantly affect the performance of BLUD employees at RSUD Djasamen Saragih Pematangsiantar. The partial test showed that self-efficacy and creativity variable has positive and significant on employee performance of BLUD employees at RSUD Djasamen Saragih Pematangsiantar. In contrast, the work stress variable has negative and significant on employee performance. BLUD employees at RSUD Djasamen Saragih Pematangsiantar. Creativity is a dominant variable influencing employee performance at RSUD Djasamen Saragih Pematangsiantar
Carbon charcoal was made from rambutan rods and used as an adsorbent. A gram 70/100 mesh size of adsorbent was then used to adsorb 100 ml of copper ion solution with a 70 ppm concentration. In this investigation, the batch procedure was used without shaking (naturally). The charcoal carbon rambutan ability to remove the copper ion was measured by AAS. The percentage result was 48,135% or about 33,694 ppm. SEM and EDX instrument analysis have applied to confirm the presence of copper ions on the adsorbent surface. The copper ion was found at a concentration of 0.09 percent of the total weight. The carbon charcoal adsorbent in rambutan rods has the ability to purify the water contaminated by metal ions.
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