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All Journal Jurnal Ekonomi dan Kewirausahaan Indonesian Journal of Chemical Science Parole (Jurnal Pendidikan Bahasa dan Sastra Indonesia)
Yosi Pratama, Yosi
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Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Social Sciences

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PEMANFAATAN EKSTRAK DAUN JATI SEBAGAI INDIKATOR TITRASI ASAM-BASA Pratama, Yosi; Prasetya, Agung Tri; Latifah, Latifah
Indonesian Journal of Chemical Science Vol 4 No 2 (2015)
Publisher : Indonesian Journal of Chemical Science

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Abstract

Telah dilakukan penelitian mengenai pengaruh lama perendaman daun jati terhadap absorbansi ekstrak pekat daun jati, trayek pH yang dihasilkan, pengaruh asam askorbat terhadap stabilitas ekstrak dan kesalahan titrasi teoritis penggunaannya pada titrasi asam-basa. Pembuatan ekstrak dilakukan dengan cara memvariasi lama perendaman dengan pelarut etanol-HCl, 16, 20, 24 dan 28 jam. Ekstrak optimalnya ditambahkan pada larutan dengan pH 1-13 untuk mengetahui trayek pH. Pengaruh keberadaan asam askorbat pada stabilitas ekstrak diamati dengan menambahkan 100, 250, 400 dan 550 ppm asam askorbat ke dalam ekstrak tersebut, diamati selama 25 hari, dan dianalisa kondisi absorbansinya setiap lima hari sekali setelah hari pertama. Ekstrak kemudian digunakan sebagai indikator titrasi asam kuat-basa kuat, asam lemah-basa kuat dan asam kuat-basa lemah. Lama perendaman pada menghasilkan 24 jam sebagai lama perendaman maksimal dan trayek pH ekstrak diketahui pada pH 7-8. Keberadaan asam askorbat mempengaruhi stabilitas ekstrak pekat daun jati, semakin tinggi konsentrasi asam askorbat yang ditambahkan, semakin besar pula penurunan absorbansi pada panjang gelombang maksimum ekstrak. Penggunaan ekstrak pada titrasi asam kuat-basa kuat memiliki persentase kesalahan yang lebih kecil, yaitu sebesar +0,002295%.
PENGARUH HARGA DAN KUALITAS PELAYANAN TERHADAP KEPUASAN KONSUMEN PO. ROSALIA INDAH DI PALUR KARANGANYAR DENGAN FASILITAS SEBAGAI VARIABEL MODERASI Pratama, Yosi
JURNAL EKONOMI DAN KEWIRAUSAHAAN Vol 15 (2015): Ekonomi dan Kewirausahaan
Publisher : Universitas Slamet Riyadi

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Abstract

The purpose of this study is: To analyze the significance of the effect of price, quality of service and facilities to the satisfaction of consumers who use PO bus transportation services. Rosalia Indah in Palur Karanganyar. To analyze the effect of moderating influence of the facility on the price and quality of service to customer satisfaction using bus transportation services PO. Rosalia Indah in Palur Karanganyar. In conclusion: There was a significant effect of price on consumer satisfaction PO bus transport service users. Rosalia Indah in Palur Karanganyar. There was a significant effect of service quality on customer satisfaction PO bus transport service users. Rosalia Indah in Palur Karanganyar. There was a significant influence on consumer satisfaction facility transport service users Bus PO. Rosalia Indah in Palur Karanganyar. Facilities moderate the effect of price on consumer satisfaction PO bus transport service users. Rosalia Indah in Palur Karanganyar. Facilities moderate the impact of service quality on customer satisfaction PO bus transport service users. Rosalia Indah in Palur Karanganyar. Keywords: price, quality of service, facilities and customer satisfaction
TELAAH UNSUR BATIN DALAM PUISI BERJUDUL SAJAK IBU KARYA WIJI THUKUL Pratama, Yosi; Sobari, Teti
Parole (Jurnal Pendidikan Bahasa dan Sastra Indonesia) Vol 4, No 2 (2021): VOLUME 4 NOMOR 2, MARET 2021
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/p.v4i1p193-200.6985

Abstract

A written work created by someone, is not just a form of expression in expressing his ideas or ideas. But there is a mission or other purpose that he wants to convey to all readers. This study aims to determine the inner elements of poetry in terms of theme, taste, tone and message. The method that the author uses is descriptive qualitative with text as the source of data and the object of the research. Of the many literary works of poetry produced by Indonesian writers, there is one interesting title of poetry to be studied, namely the poem "rhyme mother" by the poet whose writing is free and active. namely Wiji Thukul. The results of this study indicate that the poem has the theme of humanity, which contains feelings of longing and deep wounds. While the implied feelings are none other than feelings of grief. The tone and atmosphere of the poem are light and easy to understand by the readers. So that the reader seems to be carried away with the events in it. In addition, the mandate in this literary work of poetry is a call to glorify or appreciate someone who is present in everyone's life. The work reveals the position or self-esteem of a noble human being. Of course, family is the most expensive asset that is difficult to replace with objects or other things.
Co-Authors Agung Tri Prasetya Latifah Latifah Teti Sobari, Teti