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All Journal Jurnal Pendidikan Ekonomi (JUPE) Jurnal Inovasi Pendidikan Kimia Unnes Science Education Journal REKASATWA : Jurnal Ilmiah Peternakan Animal Production
Dewi, Ratna Kumala
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Social Sciences Veterinary

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THE INFLUENCE OF GUIDED INQUIRY LEARNING ASSISTED FLASH APPLICATION ON ELECTROLYTE SOLUTION MATERIALS AGAINST THE RESULTS OF STUDENTS Dewi, Ratna Kumala; Haryani, Sri; Wardani, Sri
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v7i2.23273

Abstract

This study aims to determine how much influence of guided inquiry learning assisted flash application on electrolyte solution materials to the results of student class X learning in SMA Negeri 8 Semarang. This research method using an experimental method. The sampling technique used cluster random sampling technique. Method of data collection was done with documentation to find out the population, questionnaire for student responses, test (pretest and posttest), and observation to assess aspects of affective and psychomotor learning outcomes. Hypothesis test used in this research is an analysis of influence between variables, a test of difference of two means, and coefficient of determination. The result of different test of two mean value of posttest tcount is 6.68 more than ttable 1.995 with dk = 70 and 5% significance level mean that experiment class learning result is higher than control class. Implementation of guided inquiry learning model with flash application contributes 64% of student learning outcomes. Display of flash application using Software Adobe Flash CS 6. Based on the results of research, can be concluded that guided inquiry learning assisted flash application has a positive effect on student learning outcomes in SMA Negeri 8 Semarang on the material of electrolyte and nonelectrolyte solution.
Analisis Kesulitan Belajar pada Mahasiswa Tadris Kimia Materi Biokimia di UIN SATU Tulungagung Dewi, Ratna Kumala
Jurnal Inovasi Pendidikan Kimia Vol 16, No 1 (2022): January 2022
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jipk.v16i1.31361

Abstract

Biokimia adalah ilmu yang mengkaji mengenai substansi dan komposisi pada makhluk hidup. Mata kuliah Biokimia termasuk mata kuliah yang sulit untuk dipelajari oleh mahasiswa. Kesulitan belajar pada materi biokimia menyebabkan hasil belajar mahasiswa Tadris Kimia cenderung rendah. Tujuan penelitian ini adalah menganalisis kesulitan belajar mahasiswa tadris kimia di UIN SATU Tulungagung pada mata kuliah Biokimia. Metode penelitian menggunakan deskriptif analisis. Teknik analisis data dilakukan dengan tinjauan literatur. Metode pengumpulan data pada penelitian ini dilakukan dengan observasi, penyebaran angket, dokumentasi, wawancara dosen, serta wawancara mahasiswa. Instrumen penelitian ini terdiri dari lembar wawancara dosen dan mahasiswa, lembar observasi, dan juga lembar angket. Subjek penelitian adalah mahasiswa Tadris Kimia UIN SATU Tulungagung yang telah menempuh mata kuliah Biokimia sebanyak 70 mahasiswa. Teknik pengambilan sampel menggunakan purposive sampling. Hasil penelitian dan membahasan menunjukkan bahwa kesulitan belajar pada mahasiswa dipengaruhi oleh beberapa faktor diantaranya kapasitas dosen dalam mengajar, kemampuan mahasiswa dalam menyerap materi pembelajaran, kualitas lingkungan pembelajaran, dan media pembelajaran. Upaya yang dapat dilakukan dalam rangka mengatasi kesulitan belajar pada mahasiswa tadris kimia materi Biokimia adalah dengan melalui pengembangan bahan ajar yang lebih menarik, penggunakan model pembelajaran interaktif, pembuatan video pembelajaran, modul, buku petunjuk praktikum, diskusi interaktif antara dosen dengan mahasiswa, dan kegiatan laboratorium.
IDENTIFIKASI SIFAT KUANTITATIF DAN KUALITATIF KAMBING BOERKA DI UPT. AGRI SCIENCE TECHNOPARK UNIVERSITAS ISLAM LAMONGAN Khasanah, Nur; Wardoyo, Wardoyo; Dewi, Ratna Kumala
REKASATWA : Jurnal Ilmiah Peternakan Vol. 4 No. 1 (2022): REKASATWA : Jurnal Ilmiah Peternakan
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rekasatwa.v4i1.14341

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui sifat kuantitatif dan kualitatif Kambing Boerka di UPT. Agri Science Technopark Universitas Islam Lamongan. Materi yang digunakan adalah Kambing Boerka Betina F1 sebanyak 4 ekor, dan Kambing Boerka Jantan F1 sebanyak 11 ekor, berumur 3-6 bulan. Data kuantitatif meliputi panjang badan, tinggi pundak, lingkar dada, dan bobot badan pada Kambing Boerka yang dianalisa dengan menghitung nilai rata-rata dan standart deviasi pada setiap sifat yang diamati. Data kualitatif dianalisis dengan metode pengamatan ciri-ciri tubuh ternak seperti bentuk kepala, bentuk hidung, bentuk telinga, warna bulu dengan analisis deskriptif. Hasil penelitian pada sifat kuantitatif berupa bobot badan, lingkar dada, panjang badan, dan tinggi pundak pada Kambing Boerka jantan memiliki nilai lebih tinggi dibanding Kambing Boerka betina. Pada sifat kualitatif yakni memiliki ciri-ciri bertanduk sebesar 86,7%, telinga menjuntai kebawah sebesar 93,3%, garis muka datar sebesar 53,3%, warna bulu tubuh depan, tengah, dan belakang berwarna putih polos sebesar 100%.
Growth Pattern of Different Body Dimensions in Female Kacang Goats Yolanda, Galuh Fitria; Dewi, Ratna Kumala; Wardoyo
ANIMAL PRODUCTION Vol. 24 No. 1 (2022)
Publisher : Faculty of Animal Science, Jenderal Soedirman University in associate with the Animal Scientist Society of Indonesia (ISPI) and the Indonesian Association of Nutrition and Feed Science (AINI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jap.2022.24.1.66

Abstract

The purpose of this study was to determine the growth patterns of female Kacang goats Growth Pattern of Different Body Dimensions in Female Kacang Goats. We measured 23 female goats for variables including body weight, chest circumference, shoulder height, and body length. The results showed that body weight followed the sigmoid curve pattern (S) with a regression equation y = 0.0005x3-0.0837x2 + 3.0707x + 0.119 with a coefficient of determination of 88.99%, while body size for chest circumference, body length, and shoulder height follows a polynomial pattern with regression equations y = -0.0627x2 + 3.1156x +40.333, y = -0.033x2 + 1.6941x + 43.125, and y = -0.0418x2 + 2.1168x + 39.089, respectively and the coefficient of determination was 85.26%, 82.46%, and 68.53%, respectively. The research conclude that the growth of body dimensions in livestock has fluctuated. The increase of body dimensions in female-goat goats peaked at the age of 21-30 months, then started to decline during 31-40 months. It is correlated with the fact that age greatly affects the dimensions of the animal body. The highest coefficient determination value was observed in body weight, namely 88.89%.
Assessing entrepreneurial self-efficacy among senior high school students: A preliminary study Sanjaya, Eli Hendrik; Rokhim, Deni Ainur; Ardyansyah, Ananta; Dewi, Ratna Kumala; Widarti, Hayuni Retno; Munzil, Munzil; Muntholib, Muntholib; Yahmin, Yahmin
Jurnal Pendidikan Ekonomi (JUPE) Vol. 13 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jupe.v13n3.p212-224

Abstract

Entrepreneurship is increasingly recognized as an essential skill for students to face global economic and social challenges. However, research on entrepreneurial self-efficacy (ESE) among high school students in Indonesia remains limited, despite its crucial role in shaping entrepreneurial intentions and readiness. This study aims to explore students’ levels of ESE and analyze the influence of gender and entrepreneurial experience on their abilities and intentions. Using a mixed-methods approach, data were collected through surveys measuring knowledge, interest, experience, and ESE. The findings reveal that students have high levels of entrepreneurial knowledge and interest, with ESE ranging from moderate to high. Gender was found to influence knowledge, interest, and ESE, with female students tending to demonstrate stronger entrepreneurial intentions. Moreover, prior entrepreneurial experience was shown to enhance both ESE and students’ interest in entrepreneurship. Qualitative analysis highlighted that students perceive capital, marketing, and product development as key needs for entrepreneurship, while common challenges include competition and financial constraints. Overall, students expressed neutral to positive sentiments toward entrepreneurial engagement. These findings underscore the importance of practical, gender-sensitive, and experiential entrepreneurship education to strengthen ESE and better prepare students for the challenges of the business world.
Co-Authors Ardyansyah, Ananta Deni Ainur Rokhim Eli Hendrik Sanjaya Hayuni Retno Widarti Muntholib Munzil Nur Khasanah Sri Haryani SRI WARDANI Wardoyo Wardoyo Wardoyo Yahmin Yahmin Yolanda, Galuh Fitria