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All Journal Pendidikan Bahasa dan Sastra Indonesia Indonesian Journal of Pure and Applied Chemistry
Dwi Yuniarsih
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemistry Education Languange, Linguistic, Communication & Media

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Pemerolehan Kalimat Bahasa Indonesia Anak Usia 3;0-4;0 Tahun Yuniarsih, Dwi; Ermanto, Ermanto; Emidar, Emidar
Jurnal Pendidikan Bahasa dan Sastra Indonesia Vol 1, No 2 (2013): Seri G
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/1363-019883

Abstract

This article was written to (1) to describe any kind of sentencein terms of syntactic form sobtained bythe child at age 3;0-4;0, and (2) describe patterns of sentences in terms of syntactic function obtained by children at age 3;0-4;0. The data of this study is the sentence that speech children aged 3;0-4;0. The data source of this research his the speech of children aged 3;0-4;0. Data obtained using methods refer to and supported by observation and recording techniques. Data obtained transcribed into written language, identified, classified, and then made conclusions. The findings of this study are the types of sentences in terms of syntactic forms found as many as four types of sentences and sentence patterns found in terms of syntactic function as much as 23 sentence patterns.
SINTESIS NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK DAUN PAKIS (Stenochlaena sp.) SEBAGAI BIOREDUKTOR Yuniarsih, Dwi; Gusrizal, Gusrizal; Alimuddin, Andi Hairil
Indonesian Journal of Pure and Applied Chemistry Vol 8, No 3 (2025)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v8i3.86094

Abstract

The use of biological reductants has been identified as a more environmentally friendly approach in nanoparticle synthesis than the use of chemical reductants, which can produce hazardous waste. The aims of this study were synthesize silver nanoparticles using fern leaf extract (Stenochlaena sp.) as a bioreductor and stabilizing/protecting agent, as well as to test the stability of the resulting silver nanoparticles and perform characterization. Synthesis of silver nanoparticles involves the reaction of a silver nitrate solution with a fern leaf extract solution in boiling water. Stability of the silver nanoparticles as observed over a period of one month indicated a decline in stability. FTIR spectrum analysis demonstrated indicating a direct involvement of the extract in the reduction process as well as the presence of Ag-O bonds in the FTIR spectrum of silver nanoparticles. TEM analysis revealed that the size of the silver nanoparticles ranged from 3 to 16 nanometers, with a relatively spherical morphology. PSA demonstrated that the silver nanoparticles had a zeta potential value of +12.7 mV. This study offers insight into the potential of fern leaf extract as a bioreductor in the synthesis of silver nanoparticles and the physical chemical characteristics of the resulting nanoparticles.
Co-Authors . Ermanto Andi Hairil Alimuddin Emidar Emidar Gusrizal Gusrizal