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All Journal Jurnal Riset Bisnis dan Manajemen Journal of Research and Innovation In Open and Distance Learning Manilkara: Journal of Bioscience
Diki
Universitas Terbuka
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Neuroscience Veterinary Other

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Variabilitas Morfologi Jagung di Kecamatan Ciseeng, Kabupaten Bogor dan Kecamatan Setu, Kota Tangerang Selatan Diki; Susi Sulistiana; Arif Cahyani Ilyas
MANILKARA: Journal of Bioscience Vol 1 No 1 (2022): August
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (738.556 KB) | DOI: 10.33830/manilkara.v1i1.3546.2022

Abstract

Penelitian ini mengukur dan membandingkan variabilitas morfologi dari dua populasi jagung varietas Golden di Kabupaten Bogor dan Kota Tangerang Selatan dengan mengukur parameter morfologi tanaman jagung yaitu: jumlah tongkol panen, tinggi tanaman, tinggi letak tongkol, panjang tongkol, diameter tongkol, kadar air saat panen dan bobot kering 100 biji. Pupuk yang digunakan berbeda, untuk tanaman jagung di lokasi kota Tangerang Selatan menggunakan pupuk organik yaitu pupuk kandang kambing, sedangkan lokasi kabupaten Bogor menggunakan pupuk anorganik yaitu pupuk urea, TSP, KCl (NPK). Untuk menganalisis data variabilitas menggunakan Anova. Berdasarkan hasil pengamatan, bahwa secara umum terdapat perbedaan dalam morfologi jagung diantara kedua lokasi tersebut. Morfologi jagung di lokasi kota Tangerang Selatan dengan kabupaten Bogor berbeda terutama dalam hal, variabel tinggi tongkol, diameter tongkol, bobot 100 biji, bobot tongkol, dan kadar air. Perbedaan hasil tersebut diduga karena penggunaan pupuk yang berbeda.
IDEA TESTING AND ANALOGY PREDICT CREATIVITY OF BIOLOGY STUDENTS IN ONLINE LEARNING Diki; Dem Vi Sara; Eko Yuliastuti Endah Sulistyawati; Mutimanda Dwisatyadini; Ida Malati Sadjati; Endang Indrawati
Journal of Research and Innovation In Open and Distance Learning Vol. 2 No. 1 (2023): June
Publisher : Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jriodl.v2i1.3753

Abstract

Identifying factors affecting students’ success is important. This is a study on creativity of biology students to solve their learning problem. The participants are biology students at Universitas Terbuka (UT), the only single mode distance learning university in Indonesia. conducting online tutorial in introductory biology. Descriptive and bivariate correlation statistics data are collected, including one dependent variable about improvement of problem-solving skill and six independent variables. The six independent variables are problem identification, information searching, idea generation, analogy, integrating different concepts, and idea testing. Demographic data are age, gender, and length of daily online activities. There are 73 students returned the survey with 23.4% response rate. Most students (more than 60%) agree to some extent in all the variables. There are different levels of agreement about the use of online tutorial regarding gender, age and length of daily online activities. There are only two out of six independent variables that have significant correlation (0.05 significance level, two-tailed) with improvement of problem-solving skill, which are analogy and idea testing. Keywords: creativity, biology, problem-solving, distance learning, online learning
THE EFFECT OF FINANCIAL RATIOS ON STOCK RETURNS IN TELECOMMUNICATIONS COMPANIES Rinto Retnadi Fauzi; Nizwan Zukhri; Diki
Jurnal Riset Bisnis dan Manajemen Vol. 14 No. 2 (2021): August Edition
Publisher : Faculty of Economic and Business, University of Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jrbm.v14i2.3441

Abstract

The purpose of this study was to analyze and investigate the effect of liquidity, solvency, and profitability on stock returns in telecommunications companies listed on the Indonesia Stock Exchange in 2010 - 2018. In this study, the measurement of liquidity ratio used the current ratio; the solvency ratio was measured using DAR (Debt to Asset Ratio) and DER (Debt to Equity Ratio), while the profitability ratio used ROA (Return on Asset Ratio) and ROE (Return on Equity Ratio). The results of this study indicate that liquidity which measured using current ratio had a negative but insignificant effect on stock returns, while solvency measured using DAR and DER, as well as profitability measured using ROA and ROE had a positive but insignificant effect on stock returns of telecommunications companies, respectively.
Co-Authors Arif Cahyani Ilyas Dem Vi Sara Eko Yuliastuti Endah Sulistyawati Endang Indrawati Ida Malati Sadjati Mutimanda Dwisatyadini Nizwan Zukhri Rinto Retnadi Fauzi Susi Sulistiana