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All Journal Prosiding Semnastek ELTALL: English Language Teaching, Applied Linguistic and Literature
Yustinah
Department of Chemicals Engineering, Universitas Muhammadiyah Jakarta
Humanities Computer Science & IT Education Languange, Linguistic, Communication & Media Social Sciences

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The Speech Politeness of Z-Generation in the Digital Era Yustinah; Setiawan, Anjar; Sulthan, Faqih
ELTALL: English Language Teaching, Applied Linguistic and Literature Vol. 6 No. 1 (2025)
Publisher : Institut Agama Islam Negeri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21154/eltall.v6i1.10792

Abstract

The increasing integration of digital technology in higher education underscores the importance of speech politeness among Generation Z, particularly in online academic interactions. This study aims to explore the levels and characteristics of speech politeness exhibited by Generation Z students in digital contexts. A descriptive statistical method was used to analyze data collected through a Google Forms survey, involving 424 students from the Faculty of Economics—263 from Management, 145 from Accounting, and 16 from Agribusiness—who were enrolled in an Indonesian language course. The results indicated that 53.13% of students demonstrated awareness of speech politeness in the planning stage, 51.9% during implementation, and 56.9% in evaluation. These findings suggest a relatively balanced application of speech politeness across different stages of digital communication. Qualitative responses further revealed that students view speech politeness as beneficial for enhancing knowledge, skills, and attitudes in alignment with curricular goals. The study concludes that there is a harmonious relationship between theoretical understanding and practical application of speech politeness among Generation Z in the digital era.
Pengaruh Massa Ekstrak Daun Tanaman Pala (Horspeldia spicata) Terhadap Aktivitas Antioksidan Sediaan Serum Anti-Aging Menggunakan Metode DPPH Taufiq, Fadil; Susanty; Yudistirani, Sri Anastasia; Yustinah; Winarni
Prosiding Semnastek PROSIDING SEMNASTEK 2025
Publisher : Universitas Muhammadiyah Jakarta

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Abstract

Antioksidan merupakan molekul yang mampu memperlambat atau mencegah oksidasi molekul lain yang menghasilkan radikal bebas. Tanaman yang memiliki potensi untuk mencegah terpapar radikal bebas dan masalah kesehatan lainnya yaitu rempah-rempah, terkhususnya daun tanaman pala. Tujuan penelitian ini untuk mengetahui pengaruh massa ekstrak daun tanaman pala (Horsfieldia spicata) terhadap aktivitas antioksidan sediaan serum anti-aging dengan formula yang umum digunakan dipasaran menggunakan metode DPPH. Daun tanaman pala diekstraksi menggunakan metode maserasi dengan etanol 96% sebagai pelarut. Formula serum antioksidan diformulasikan menjadi basis serum dengan variasi konsentrasi ekstrak. Hasil uji fitokimia menunjukkan bahwa ekstrak daun tanaman pala mengandung senyawa flavonoid, alkaloid, fenolik, steroid, dan saponin. Rendemen yang dihasilkan dari proses ekstraksi sebesar 33,8%. Keempat formula sediaan serum memiliki pH pada rentang 7,6-8,0; daya sebar sebesar 5,0-5,4 cm; daya lekat 9 detik, dan viskositas 681,3-693,8 mPas. Hasil uji aktivitas antioksidan dari keempat formula sediaan serum menunjukkan bahwa penambahan massa ekstrak daun pala tidak menunjukkan pengaruh signifikan terhadap aktivitas antioksidan sediaan serum anti-aging. Hal ini terlihat bahwa nilai IC50 dari keempat formula sediaan serum yang memiliki rentang nilai 0,59-0,60.
Co-Authors Sugeng, Santoso Sulthan, Faqih Susanty Taufiq, Fadil Winarni Yudistirani, Sri Anastasia