Article Per Year (5 Year)
p-Index From 2020 - 2025
1.235
P-Index
This Author published in this journals
All Journal Molekul: Jurnal Ilmiah Kimia SPRINTER: Jurnal Ilmu Olahraga Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks HUMANITIS : Jurnal Humaniora, Sosial dan Bisnis Jurnal Kimia Unand
Yulia Eka Putri
Unknown Affiliation
Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Morphology-Controlled Synthesis Of SrTiO3 Nanocube By Capping Agent-Assisted Solvothermal Method Yulia Eka Putri; Alvionita Alvionita; Rini Rahma Yanti; Diana Vanda Wellia
Molekul Vol 11, No 1 (2016)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.473 KB) | DOI: 10.20884/1.jm.2016.11.1.191

Abstract

The synthesis of SrTiO3 nanocubes have been carried out by solvothermal process using cetyl trimethyl ammonium bromide (CTAB) as capping agent to control the particles morphology. The condition of the synthesis was obtained at 160 ºC for 24 hours with molar ratio of SrTiO3 and capping agent was 1 : 1. The X-ray diffraction (XRD) pattern shows that SrTiO3 adopts a perovskite structure with a higher intensity of 110 at 2q:32.33º and the crystallite size calculated from FWHM was found to be 41 nm. Fourier transform infrared (FTIR) spectrum shows a shift in particular absorption band attributed the interaction between SrTiO3 particles surface and the head group of CTAB molecules. Transmission electron microscopy (TEM) image shows the cubic-like particles of SrTiO3, this indicatesthat CTAB successfully functions as capping agent on the synthesis of SrTiO3.
Survei Minat dan Motivasi Peserta Didik Dalam Mengikuti Kegiatan Ekstrakurikuler Pencak Silat Lulu Amellia Musyaffa; Yulia Eka Putri; Ruslan Abdul Gani; Irfan Zinat Achmad; Rizki Aminudin; Ardawi Sumarno; Astri Ayu Irawan
SPRINTER: Jurnal Ilmu Olahraga Vol. 4 No. 1 (2023): SPRINTER: Jurnal Ilmu Olahraga
Publisher : MAN Insan Cendekia Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46838/spr.v4i1.253

Abstract

Tujuan dari penelitian yang dilakukan adalah untuk mengetahui besarnya minat dan motivasi siswa pada kegiatan ekstrakulikuler pencak silat di SMPN 1 TelukJambe Timur. Populasi yang digunakan pada penelitian terdiri dari 30 peserta ekstrakulikuler pencak silat di SMPN 1 TelukJambe Timur. Semua data yang didapatkan melalui teknik observasi, angket dan wawancara. Data yang didapatkan menggunakan analisis deskriptif kuantitatif dengan kategori persentase. Hasil analisis memperoleh bahwa minat siswa terhadap kegiatan ekstrakulikuler sebesar 88% dan motivasi siswa sebesar 85,5%. Kesimpulannya minat dan motivasi siswa untuk mengikuti kegiatan ekstrakulikuler pencak silat di SMPN 1 TelukJambe Timur  kategori baik.
Bimbingan dan Pelatihan Fermentasi Pakan untuk Budidaya Ikan Lele dengan Probiotik sebagai Upaya Peningkatan Hasil Produksi Masyarakat di Koto Luar, Kecamatan Pauh, Padang Syafrizayanti Syafrizayanti; Rahmayeni Rahmayeni; Mai Efdi; Yeni Stiadi; Syukri Syukri; Yulia Eka Putri; Diana Vanda Wellia; Tio Putra Wendari; Admi Admi; Emil Salim; Geliz Luh Titisari; Famella Azhara
Warta Pengabdian Andalas Vol 30 No 1 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.30.1.40-46.2023

Abstract

The use of feed in fish farming is often inefficient because fish only partially consume the feed spread in ponds, so it becomes waste for the aquatic environment and, even worse, will trigger new diseases. The Department of Chemistry's of Universitas Andalas team was trying to overcome this problem by increasing the efficiency of fish feed. For the feed to work optimally and produce good quality fish weight, it is necessary to modify the nutrition of the fish feed, one of which is by adding probiotics through a fermentation process. The method used in this activity includes training, mentoring, and demonstration plots in feed fermentation and counselling regarding the right time to feed. This activity targets fish farmers in the Koto Luar area, Pauh District, Padang, with a fish culturing group, "Family Sepakat", as the partner. Feed fermentation was carried out with probiotic starters such as Bacillus sp., saccharomyces cerevisiae, L. fermentum, L. plantarum, and W. paramesenteroides. This activity improved catfish growth, and the death rate was lower than in catfish farming without feed fermentation treatment.
Sintesis Nanopartikel Titanium Dioksida (TiO2) dengan Menggunakan Ekstrak Kulit Jeruk Gunung Omeh dan Karakteristiknya Diana Vanda Wellia; Shelvira Edelwita; Yulia Eka Putri
Jurnal Kimia Unand Vol. 11 No. 2 (2022): November 2022
Publisher : Departemen Kimia Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jku.11.2.22-30.2022

Abstract

In this study, TiO2 nanoparticles were synthesized without adding extract (0% v/v) (control) and with the addition of Gunung Omeh orange peel extract with various concentration, namely 4% v/v, 10% v/v, and 20% v /v. This study aims to study the use of Gunung Omeh orange peel extract on the formation of TiO2 nanoparticles and determine its characteristics. The characteristics of the resulting nanoparticles were characterized using X-Ray Diffraction (XRD), Diffuse Reflectance Spectroscopy, Ultraviolet-Visible (DRS UV-Vis), Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX), Brunauer-Emmett-Teller (BET), Fourier Transform Infrared (FTIR), and Thermo Gravimetric and Differential Thermal Analyzer (TG-DTA). XRD results showed that the TiO2 phase formed was anatase. The optical property of TiO2 nanoparticles showed that the obtained TiO2 nanoparticles absorb in the UV region (200-400 nm). The results of SEM-EDX show that the resulting TiO2 nanoparticles are spherical. Meanwhile, the TOKJ20 sample has increased agglomeration so that the particle shape is rod-like. The EDX spectrum showes the presence of Ti and O peaks indicated the formation of TiO2. The results of BET measurement showed that the control TiO2 had a larger surface area of 66.11 m2/g compared to TiO2 using the addition of other orange peel extracts. From the results obtained, it was concluded that, in general, the addition of orange peel extract did not significantly affect the formation of TiO2 nanoparticles.
Sintesis Lapis Tipis SrTiO3 dengan Metode Solvotermal Melvi Muharmi; Yulia Eka Putri; Diana Vanda Wellia
Jurnal Kimia Unand Vol. 11 No. 2 (2022): November 2022
Publisher : Departemen Kimia Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jku.11.2.31-35.2022

Abstract

SrTiO3 thin layer were synthesized through solvothermal method by using FTO (fluorine-doped tin oxide) glass as a conductive substrate. The raw materials strontium nitrate (Sr(NO3)2) and titanium tetra isopropoxide (TTIP) were dissolved in ethanol solvent. Sample purity, elemental compositions and surface morphology were characterized using x-ray diffraction (XRD), energy dispersive x-ray (EDX) and scanning electron microscopy (SEM). XRD analysis showed that the synthesized SrTiO3 thin layer at 200oC for 24 hours with the addition of CTAB and TBA had intensity peaks that mathced the SrTiO3 standard (ICSD #94573) with perovskite structure. This result was supported by the XRD pattern of the sample powder. The EDX spectrum showed that titanium and oxygen were in the sample, but the presence of strontium was not found, due to its weak intensity. Based on the SEM image, the morphology seen is distributed equally and the grain size is rather smaller in the sample with the addition of CTAB and TBA.
PENGARUH BRAND AMBASSADOR DAN TESTIMONI TERHADAP KEPUTUSAN PEMBELIAN ATAS PRODUK ZENIA CLINIC DI KECAMATAN KINALI Yulia Eka Putri; Amsah Hendri Doni
HUMANITIS: Jurnal Homaniora, Sosial dan Bisnis Vol. 3 No. 2 (2025): Februari
Publisher : ADISAM PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to identify the extent of the impact of brand ambassadors and evidence on purchasing decisions on Zenia Clinic products in Kinali District. The method used in this research is a quantitative method. This research was conducted with 95 respondents. On the other hand, the method of collecting information was attempted by distributing questionnaire forms which were then processed using SPSS 24. The analysis tools used in this research are instrument trials (validity and reliability trials), classical assumption trials (normality trials, multicollinearity trials and heteroscedasticity trials), multiple linear regression trials, coefficient of certainty trials (R2) and assumption trials (partial significance trials (T-test) and simultaneous significance trials (F-test)). The results of this research prove that the T-test of brand ambassador (X1) on purchasing decisions (Y) is 0.001≤0.05 and the t-count is 9.965≥ t-table 1.985. This means that H1 is obtained where there is an effect of brand ambassador (X1) on purchasing decisions (Y) in a significant way. The T-test of evidence (X2) on purchasing decisions (Y) is 0.001≤0.05 and the t-count is 9.631≥ t-table 1.985. This means that H2 is obtained where there is an effect of evidence (X2) on purchasing decisions (Y) in a significant way. The results of the F-test prove that the significant number of effects of brand ambassadors (X1) and proof (X2) on purchasing decisions (Y) is 0.001 ≤ 0.05 and the f count is 66.169 ≥ ftable 3.09. This means that there is a simultaneous effect between brand ambassadors (X1) and proof (X2) on purchasing decisions. (Y).
Co-Authors Admi Admi Alvionita Alvionita AMINUDIN, RIZKI Amsah Hendri Doni Ardawi Sumarno Astri Ayu Irawan Emil Salim Famella Azhara Geliz Luh Titisari Irfan Zinat Achmad Lulu Amellia Musyaffa Mai Efdi Melvi Muharmi Rahmayeni Rahmayeni Rini Rahma Yanti Ruslan Abdul Gani Shelvira Edelwita Syafrizayanti Syafrizayanti Syukri Syukri Tio Putra Wendari Wellia, Diana Vanda Yeni Stiadi