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All Journal Jurnal Kompetitif Jurnal Pendidikan Matematika Universitas Lampung Jurnal Kesehatan Andalas Indonesian Journal of Medicine Majalah Patologi Indonesia Journal of Business on Hospitality and Tourism HiJaSE (Hamzanwadi Journal of Science Education)
Ria Oktavia
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Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Health Professions Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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PENGARUH GAYA KEPEMIMPINAN DAN MOTIVASI TERHADAP KINERJA KARYAWAN DI PT WOM FINANCE TBK CABANG PALEMBANG Nina Fitriana; Umi Hasanah; Ria Oktavia
JURNAL KOMPETITIF Vol 5, No 2: Edisi Juli-Desember 2016
Publisher : Fakultas Ekonomi Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/kompetitif.v5i2.611

Abstract

The purpose of this research to identify and analyze the influence of leadership style and motivation on employee performance PT Wom Finance Tbk Branch Palembang. The data used are primary and secondary data with a sample of 76 employees. To determine the effect of leadership style and motivation on employee performance PT Wom Finance Open used multiple regression analysis. The research showed that there are significant positit There are significant Influence Style Leadership and Motivation on Employee Performance in PT Wom Finance Palembang. Multiple linear regression equation Y = 9.455 + 0,260 X1 + 0,243 X2 + e. independent variables go hand in hand with the dependent variable means increasing Leadership Styles and Motivation then increased the level of employee performance in PT Wom Finance Palembang. There is a significant Influence Style Leadership and Motivation in Partial (alone) the Employee Performance in PT Wom Finance. The coefficient of determination () of 0.185 indicates that employee performance can be explained by variables leadership style and motivation while the rest Explained other factors not examined. Keyword : Leadership Style, Motivation, Performance
EFEKTIVITAS PENERAPAN PROBLEM-BASED LEARNING DITINJAU DARI PEMAHAMAN KONSEP MATEMATIS Ria Oktavia; Rini Asnawati; M. Coesamin
JURNAL PENDIDIKAN MATEMATIKA UNIVERSITAS LAMPUNG Vol 3, No 1 (2015): JURNAL PENDIDIKAN MATEMATIKA UNIVERSITAS LAMPUNG
Publisher : Universitas Lampung

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Abstract

This quasi experimental research aimed to know the effectiveness of problem-based learning viewed by students understanding of mathematical concepts. The design which was used was posttest only control design with the population was all students of grade eight of Junior High School TMI Roudlotul Quran Metro in academic year of 2014/2015 and the research samples were students of VIIIC and VIIID class that were determined by purposive random sampling. The data of understanding of mathematical concepts were obtained by essay test. Based on the result of this research, it was concluded that the implementation of problem-based learning was effective viewed by students understanding of mathematical concepts and more effective compared to conventional learning.Penelitian eksperimen semu ini bertujuan untuk mengetahui efektivitas problem-based learning ditinjau dari pemahaman konsep matematis siswa. Desain yang digunakan adalah posttest-only control design dengan populasinya seluruh siswa kelas VIII SMP TMI Roudlotul Quran Metro tahun pelajaran 2014/2015 dan sampel penelitian adalah siswa kelas VIIIC dan VIIID yang ditentukan dengan teknik purposive random sampling. Data pemahaman konsep matematis siswa diperoleh dari tes uraian. Berdasarkan hasil penelitian, diperoleh kesimpulan bahwa penerapan problem-based learning efektif ditinjau dari pemahaman konsep matematis siswa dan lebih efektif dibandingkan dengan pembelajaran konvensional.Kata kunci: efektivitas, pemahaman konsep, problem-based learning
Profil Histopatologik Adenokarsinoma Prostat di Laboratorium Patologi Anatomik Sumatera Barat Tahun 2015-2017 Ria Oktavia; Yenita Yenita
Jurnal Kesehatan Andalas Vol 9, No 1S (2020): Online January 2020
Publisher : Fakultas Kedokteran, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jka.v9i1S.1162

Abstract

AbstrakAdenokarsinoma prostat merupakan keganasan kedua terbanyak pada laki-laki dan menjadi penyebab kematian kelima akibat keganasan pada laki-laki di dunia. Tujuan: Mengetahui profil histopatologik adenokarsinoma prostat berdasarkan kelompok usia, grade-group, derajat histopatologik dan invasi perineural. Metode: Penelitian ini merupakan studi deskriptif terhadap 106 kasus adenokarsinoma prostat di lima laboratorium Patologi Anatomi di Sumatera Barat periode Januari 2015 sampai Desember 2017. Sampel diperoleh dari blok parafin jaringan hasil operasi Transuretral Resection of Prostat (TURP) dan prostatektomi, kemudian dilakukan reevaluasi terhadap derajat histopatologik dan invasi perineura berdasarkan ISUP 2014/WHO 2016. Hasil: Kasus adenokarsinoma prostat paling banyak ditemukan pada kelompok usia 70-80 tahun. Grade-group tersering adalah grade group 5 (51,89%) dan semua grade-group paling banyak pada kelompok umur 71-80 tahun, derajat histopatologis terbanyak yaitu poorly differentiated (66,04%), invasi perineural ditemukan pada 31 kasus (29,24%) dan paling banyak ditemukan pada grade group 5. Simpulan: adenokarsinoma prostat paling banyak ditemukan pada usia tua dengan grade-group yang tinggi dan derajat histopatologik yang buruk. Invasi perineural hanya ditemukan pada sepertiga kasus namun invasi perineural positif paling banyak ditemukan grade group 5.  
Hubungan antara Ekspresi Epidermal Growth Factor Receptor (EGFR) dengan Derajat Histopatologik dan Invasi Perineural pada Adenokarsinoma Prostat Ria Oktavia; R. Zuryati Nizar; Yenita; Tofrizal
Majalah Patologi Indonesia Vol. 30 No. 1 (2021): MPI
Publisher : Perhimpunan Dokter Spesialis Patologi Anatomik Indonesia (PDSPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55816/mpi.v30i1.458

Abstract

ABSTRAKLatar belakangEpidermal Growth Factor Receptor (EGFR) berperan penting pada karsinogenesis beberapa karsinoma termasuk karsinoma prostat.Overekspresi EGFR pada adenokarsinoma menyebabkan sel tumor menjadi resisten terhadap terapi hormonal. Tujuan penelitian iniuntuk mengetahui hubungan antara ekspresi EGFR dengan derajat histopatologik dan invasi perineural pada adenokarsinomaprostat.MetodePenelitian ini merupakan penelitian observasional dengan desain cross sectional dengan sampel penelitian sebanyak 60 kasusadenokarsinoma prostat yang telah didiagnosis di 5 Laboratorium Patologi Anatomik di Sumatera Barat periode Januari 2015 sampaiDesember 2017. Sampel diperoleh dari blok parafin yang berasal dari jaringan hasil operasi transuretral resection of prostat (TURP)dan prostatektomi kemudian dilakukan reevaluasi terhadap derajat histopatologik dan invasi perineural. Ekspresi EGFR pada seltumor dilihat dengan pewarnaan imunohistokimia. Analisis statistik menggunakan uji Chi-Square.HasilEkspresi EGFR positif ditemukan pada 38 kasus (63,33%) dan kasus terbanyak dengan EGFR positif adalah poorly differentiated(57,9%). Kasus adenokarsinoma prostat dengan invasi perineural paling banyak ditemukan dengan ekspresi EGFR positif (42,1%).Analisis statistik menunjukkan terdapat hubungan bermakna antara ekspresi EGFR dengan derajat histopatologik (p=0,003) dan tidakterdapat hubungan yang bermakna antara ekspresi EGFR dengan invasi perineural (p=0,129).KesimpulanTerdapat hubungan yang bermakna antara ekspresi EGFR dengan derajat histopatologik pada adenokarsinoma prostat dan tidakterdapat hubungan antara ekspresi EGFR dengan invasi perineural.
Antidiabetic and Anti-inflammatory Effects of Peperomia pellucida Leaf Extract: Modulation of Blood Glucose, IL-1β, and Pancreatic Histopathology in STZ-Induced Diabetic Rats Oktavia, Ria; Anto, Endy Juli; Siahaan, Jekson Martiar
Indonesian Journal of Medicine Vol. 10 No. 3 (2025)
Publisher : Masters Program in Public Health, Universitas Sebelas Maret, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26911/theijmed.2025.10.3.870

Abstract

Background: Diabetes mellitus (DM) is a significant global health challenge with a rapidly increasing prevalence. Although synthetic antidiabetic drugs remain the standard treatment, long-term use often leads to adverse side effects, prompting exploration of natural alternatives. This study investigated the therapeutic potential of ethanol extract of Peperomia pellucida (L.) Kunth leaves in diabetes management through comprehensive assessment of glycemic control, inflammatory marker (IL-1β), and pancreatic tissue histopathology. Subjects and Method: Thirty male Wistar rats were randomized into five groups (n=6): normal control, negative control (STZ-induced), positive control (STZ+metformin 50 mg/kg BW), and two treatment groups receiving Peperomia pellucida extract at doses of 40 mg/kg BW and 80 mg/kg BW, respectively. After 7 days of treatment, blood glucose levels, serum IL-1β concentrations, and pancreatic histopathology were evaluated. Phytochemical screening was conducted to identify bioactive compounds in the extract. Results: Phytochemical analysis confirmed the presence of alkaloids, flavonoids, tannins, saponins, and phenolics. Blood glucose measurements showed significant intergroup differences on day 0 (p<0.001) and day 7 (p<0.001). The 80 mg/kg BW extract group showed a reduction in blood glucose from day 0 (Mean=312.83; SD=40.92) to day 7 (Mean=281.00; SD=34.86). IL-1β serum analysis revealed significant differences among groups (p<0.001), with lower IL-1β levels observed in extract-treated groups compared to the negative control. Histopathological examination demonstrated improved pancreatic tissue structure in extract-treated groups, especially at higher doses. Conclusion: Ethanol extract of Peperomia pellucida (L.) Kunth leaves exhibits promising antidiabetic and anti-inflammatory properties in STZ-induced diabetic rats, as evidenced by reduced blood glucose, decreased IL-1β levels, and improved pancreatic histology. These findings suggest that Peperomia pellucida (L.) Kunth is a potential candidate for the development of natural therapies for diabetes management.  
Pengembangan Media Pembelajaran Poster Menggunakan Aplikasi Canva Pada Materi Pencemaran Lingkungan Ariandani, Nunung; Oktavia, Ria; Bahar, Raodatul Rozita; Najihan, Najihan; Hidayanti, Alvina; Nawansi, Hilda Fitri; Seftiana, Rika
Hamzanwadi Journal of Science Education Vol. 2 No. 2 (2025): Hamzanwadi Journal of Science Education
Publisher : Universitas Hamzanwadi

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Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran berupa poster menggunakan aplikasi Canva pada materi pencemaran lingkungan di jenjang sekolah dasar. Latar belakang penelitian ini didasarkan pada masih dominannya penggunaan metode konvensional dan kurangnya media visual yang menarik dalam pembelajaran IPA, khususnya pada topik-topik yang berkaitan dengan isu lingkungan. Padahal, pencemaran lingkungan merupakan materi kontekstual yang menuntut penyajian visual agar lebih mudah dipahami dan relevan dengan kehidupan sehari-hari siswa. Penelitian ini menggunakan metode penelitian dan pengembangan (Research and Development) dengan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Subjek uji coba terdiri dari guru dan siswa kelas V sekolah dasar. Hasil validasi oleh ahli materi dan media menunjukkan bahwa media poster yang dikembangkan layak digunakan dengan kategori sangat baik. Selain itu, respon siswa terhadap penggunaan poster dalam pembelajaran menunjukkan peningkatan motivasi belajar dan pemahaman konsep pencemaran lingkungan. Dengan demikian, media poster berbasis Canva dinilai efektif dan inovatif sebagai alternatif media pembelajaran visual yang mudah dibuat, menarik, dan sesuai dengan karakteristik siswa sekolah dasar. Penelitian ini merekomendasikan penggunaan Canva secara lebih luas dalam pengembangan media pembelajaran lainnya yang berbasis digital dan visual.
The Influence Of Brand Awareness And E-Service Quality On Consumer Purchasing Decisions In Booking Hotel Rooms On Traveloka Oktavia, Ria; Budi, Agung Permana; Febianti, Febianti
Journal of Business on Hospitality and Tourism Vol. 4 No. 2 (2018): JOURNAL OF BUSINESS ON HOSPITALITY AND TOURISM
Publisher : Institut Pariwisata dan Bisnis Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22334/jbhost.v4i2.122

Abstract

This study was to determine the effect of brand awareness and e-service quality on consumer purchasing decisions in booking hotel rooms in traveloka. The subject of this study amounted to 100 random people who had booked a hotel room through the Traveloka website. The results of the questionnaire were analyzed using multiple linear regression to see the effect between variable brand awareness, e-service quality and purchasing decisions. The results of this study indicate that brand awareness and e-service quality have a significant effect of 67.1% on the variables of consumer purchasing decisions in hotel room bookings, on the traveloka website. The implication of this research is to see the contribution of the variables studied to be used as consumer decisions in making purchases on room sales services on the website, so marketing is important to know.
Co-Authors Bahar, Raodatul Rozita Budi, Agung Permana Endy Juli Anto Febianti Febianti Hidayanti, Alvina M. Coesamin Najihan, Najihan Nawansi, Hilda Fitri Nina Fitriana Nunung Ariandani R. Zuryati Nizar Rini Asnawati Seftiana, Rika Siahaan, Jekson Martiar Tofrizal Umi Hasanah Yenita .