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All Journal International Journal of Educational Review, Law And Social Sciences (IJERLAS) Journal of Innovative and Creativity
Yanti Musyawarah
Universitas Sari Mutiara Indonesia
Religion Humanities Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences Other

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LC₅₀ Toxicity Activity Test Of Ethanol Extract Of Cardamom Leaves (Amomum cardamomum L.) On Shrimp Larvae (Artemia salina L) Using Brine Shrimp Lethality Test (BSLT) Method Suharyanisa Suharyanisa; Betharina Br Tarigan; Yanti Musyawarah; Jhon Manrius Laia
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.1864

Abstract

There are many negative effects on the use of chemical-based medicine, therefore many researchers are interested in finding natural ingredients that have the potential to replace chemical treatment. One of the plants from the Zingiberaceae family that is used as a medicinal ingredient is cardamom plant (Amomum cardamomun L), Many people often use cardamom for treatment such as aromatic ingredients, carminative (reducing gas in the stomach), cough medicine, halitosis and so on. Cardamom contains phytochemical compounds such as alkaloids, flavonoids, tannins, and saponins. The purpose of this study was to analyze the level of bioactivity of cardamom leaf ethanol extract to Artemia salina L shrimp larvae by BSLT method and determine the LC₅₀ value. This study used quantitative methods that were experimental and used 6 treatment concentrations, namely 25 ppm, 50 ppm, 100 ppm, 200 ppm, 500 ppm, 1000 ppm and 1 negative control with each concentration replicated 5 times. Artemia salina L larvae were used as many as 350 heads with 10 heads each for each concentration. The death of larvae is calculated after 24 hours of treatment. The calculation result of LC₅₀ from cardamom leaf ethanol extract (Amomum cardamomum L) with data analysis using SPSS version 25 is 151,671 ppm. This shows that cardamom leaf ethanol extract (Amomum cardamomum L) is toxic due to LC₅₀
RESOURCE-BASED THEORY (RBT) MODEL IN IMPROVING EMPLOYEE PERFORMANCE: INCLUSIVE LEADERSHIP AND SELF-EFFICACY APPROACH Yanti Musyawarah
International Journal of Educational Review, Law And Social Sciences (IJERLAS) Vol. 5 No. 4 (2025)
Publisher : CV. RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijerlas.v5i4.3458

Abstract

This study aims to explore the application of Resource-Based Theory (RBT) in improving employee performance through an inclusive leadership and self-efficacy approach. Based on RBT, an organization's internal resources, including leadership and individual self-confidence, are strategic assets that can provide competitive advantage. An inclusive leadership approach is seen as being able to create a work environment that supports diversity, collaboration, and innovation, thereby strengthening employee ownership and motivation. In addition, employee self-efficacy, which is the belief in their ability to achieve work goals, is an important factor in maximizing individual potential. This study uses a quantitative method with a survey of employees in various industrial sectors. The results show that inclusive leadership significantly increases self-efficacy, which ultimately has a positive impact on employee performance. These findings provide theoretical and practical contributions, especially in human resource management, by emphasizing the importance of inclusive leadership and self-efficacy development to optimize organizational performance. This study also recommends strategies that can be implemented by managers in building an inclusive work culture to achieve sustainable competitive advantage.
Co-Authors Betharina Br Tarigan Jhon Manrius Laia Suharyanisa Suharyanisa