<p><em>The success of an organization is influenced by employee performance, so every company will try to improve the performance of its employees in achieving the organizational goals that have been set. During the Covid-19 pandemic, there are several factors that can support employee performance, one of which is flexible work arrangements. However, not only work methods are needed to improve employee performance, the work environment and aspects of work-life balance are expected to improve employee performance. This study aims to determine the effect of flexible work arrangements and work environment on employee performance directly or indirectly through work-life balances as an intervening variable.</em></p><p><em>The data in this study were collected by distributing online questionnaires. This research on employees of PT. Telkom Indonesia, tbk in West Java (S=193), where S is the sample of employees at Telkom West Java. The method used in this research is PLS-SEM which is processed using SmartPLS 3 software. The results showed that there was a direct influence between flexible work arrangements and work environment on employee performance. In addition, the results of other studies also show that there is an indirect effect between flexible work arrangements and work environment on employee performance through work-life balance as an intervening variable.</em></p>
In material science, there are several methods for detecting elemental content in a material (sample) such as X-Ray Fluorescence (XRF), (X-Ray Diffraction) XRD, (Scanning Electron Microscope) SEM, (Transmission Electron Microscope) TEM), etc. Non-metallic samples such as gemstone can be detected by XRF and XRD methods. But in this method, the sample must get special treatment such as being crushed and converted into powder form. In this study, LIBS was used to identify elements in a gemstone. The laser-induced breakdown spectroscopy (LIBS) method is an alternative method for solving deficiencies in the previous study. The results show the same elements contained in the gemstone can clearly be detected. The elements are also confirmed by using the standard technique of X-ray fluorescence and the result revealed that the elements are consistent as in the case of the LIBS technique.
Agate is a stone that is created due to natural processes from the deposition of fossils and the formation of minerals that combine to become an agate. In essence, agate contains elements contained therein. The content of these elements can be used to distinguish the type of agate. Several methods are used to detect the elemental content of agate, including X-Ray Fluorescence and X-Ray Diffraction methods. In this study, agate will be tested using the LIBS method. The LIBS method is an alternative and effective method for identifying elements from a sample because this method does not require the sample to receive special treatment. Laser plasma optimization is done by varying the laser energy. The higher the value of the laser energy given, the intensity of the elemental spectrum will be higher. The results of the LIBS method show compatibility with the XRF method as a comparative study. The results showed that the elements contained in the agate are the elements Al, Mn, Si, Fe, Mg, Na, and Ca.
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