Jurnal Online Universitas Jambi
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PENGARUH DIFERENSIASI PRODUK DAN WORD OF MOUTH TERHADAP KEPUTUSAN PEMBELIAN SMARTPHONE SAMSUNG (STUDI KASUS MAHASISWA MANAJEMEN UNIVERSITAS JAMBI)
Full text linkPenelitian ini merupakan hasil penelitian kuantitatif yang bertujuan untuk mengetahui pengaruh diferensiasi produk dan word of mouth terhadap keputusan pembelian smartphone Samsung. Metologi penelitian yang digunakan adalah penelitian kuantitatif dan teknik pengambilan sampel menggunakan purposive sampling dengan jumlah sampel sebesar 90 responden. Teknik pengumpulan data dengan menggunakan kuesioner melalui bantuan google form yang diolah melalui SPSS versi 26 dan teknik analisis data menggunakan regresi linear berganda. Hasil penelitian ini menunjukkan bahwa diferensiasi produk berpengaruh positif dan signifikan terhadap keputusan pembelian. Kemudian word of mouth berpengaruh positif dan signifikan terhadap keputusan pembelian. Selanjutnya berdasarkan hasil perhitungan statistik uji simultan, menunjukkan bahwa diferensiasi produk dan word of mouth berpengaruh secara simultan terhadap keputusan pembelian smartphone Samsung pada mahasiswa Manajemen Universitas Jambi.
Kata kunci: diferensiasi produk, word of mouth, keputusan pembelian, smartphone Samsung, dan mahasiswa Manajemen Universitas Jamb
ANALISIS PENGARUH DIGITAL MARKETING TERHADAP BISNIS ONLINE DALAM PENGAMBILAN KEPUTUSAN STUDI KASUS PADA PEDAGANG ONLINE SHOP
Full text linkThis study aims to see the impact of digital marketing on the development of online shops, especially in relation to consumer purchasing decisions. In the midst of the advancement of the digital era, marketing methods are undergoing a transformation from traditional methods to more modern and technology-based approaches. Digital marketing has a strategic role in reaching consumers more widely, quickly, and effectively. This study was conducted with a quantitative approach by distributing surveys to consumers who actively use digital platforms. The results of the analysis show that digital marketing components such as social media, email marketing, search engine optimization (SEO), and digital advertising as well as ease of obtaining information, direct communication with sales have a significant influence on increasing purchasing decisions. This finding confirms that optimal use of digital marketing can increase the competitiveness of online businesses and strengthen relationships with consumers and can expand the reach of online shop businesses
Etnomatematika: Eksplorasi Konsep Matematika pada Gerobak Sapi Yogyakarta
No full textYogyakarta's ox carts, though culturally significant and increasingly rare, have not yet been explored as sources of mathematical concepts. This study addresses the urgency of preserving and utilizing these traditional artefacts as contextual tools for mathematics education. This ethnographic research aims to identify and describe mathematical concepts—geometry, arithmetic, algebra, and statistics—embedded in various parts of the Yogyakarta ox cart. Data were collected through interviews and observations, with the subject being an ox cart craftsman and the object being the mathematical concepts found in the cart’s section. Data analysis followed the Miles and Huberman model. The findings reveal four major mathematical concepts: (1) Geometry, including rectangles, trapezoids, rhombuses, triangles, reflections, translations, rotations, parallel and intersecting lines, angles, and tessellations; (2) Arithmetic, involving arithmetic sequences and division operations; (3) Algebra, in the form of variable terms; and (4) Statistics, represented by the mode topic. These findings contribute to the field of ethnomathematics by introducing a new cultural context and supporting the development of mathematical materials based on local wisdom, making learning more realistic. Integrating local heritage into mathematics instruction can foster a deeper understanding, increased student engagement, and a greater appreciation for cultural diversity, offering meaningful and realistic learning experiences
The Effectiveness of GeoGebra-Assisted Realistic Mathematics Education in Enhancing Students’ Conceptual Understanding
Full text linkThis research studied the application of Realistic Mathematics Education and GeoGebra which could enhance students’ conceptual understanding in mathematics, especially for geometry themes on flat-sided shapes. The study included 26 eighth-grade students of a junior public high school in Yogyakarta, Indonesia. The research, which adopted a pre-experimental design with one-group pretest–posttest arrangement, intended to explore the extent of students’ understanding improvement as GeoGebra was implemented in RME-based learning. Two conceptual understanding tests were applied, before and after intervention, alongside observation sheets aimed at monitoring activities in the class. The analysis showed that the average score increased from 47.76% to 80.29%. The test of the paired sample t-test showed a significant difference between the pre- and post-test means. Meanwhile, the N-gain score obtained 0.63, falls within a moderate category regarding effectiveness, while the learning implementation reached 98.33%, categorized as very good. These indicate that integrating RME with GeoGebra enhances accessibility in mathematics concepts to the learners and involves active participation. Limitations, however, include poor pre-knowledge of the students, irregular attendance, and distractions from using mobile phones, probably affecting their engagement and performance.This research studied the application of Realistic Mathematics Education and GeoGebra which could enhance students’ conceptual understanding in mathematics, especially for geometry themes on flat-sided shapes. The study included 26 eighth-grade students of a junior public high school in Yogyakarta, Indonesia. The research, which adopted a pre-experimental design with one-group pretest–posttest arrangement, intended to explore the extent of students’ understanding improvement as GeoGebra was implemented in RME-based learning. Two conceptual understanding tests were applied, before and after intervention, alongside observation sheets aimed at monitoring activities in the class. The analysis showed that the average score increased from 47.76% to 80.29%. The test of the paired sample t-test showed a significant difference between the pre- and post-test means. Meanwhile, the N-gain score obtained 0.63, falls within a moderate category regarding effectiveness, while the learning implementation reached 98.33%, categorized as very good. These indicate that integrating RME with GeoGebra enhances accessibility in mathematics concepts to the learners and involves active participation. Limitations, however, include poor pre-knowledge of the students, irregular attendance, and distractions from using mobile phones, probably affecting their engagement and performance
The Effect of Video Modeling Example, Worked-Example, and Practice Problem on Mathematics Learning
Full text linkLow learning results, learning motivation, and student confidence are frequently encountered when teaching mathematics in junior high school. To address these issues, it is vital to use learning methods that are appropriate for the student's qualities. The purpose of this study is to investigate and compare the impact of different learning strategies, such as video modelling examples, worked-examples, and practice problems, on students' self-efficacy, motivation, and learning outcomes in the cognitive parts of mathematics teaching. This study used a quantitative methodology and a quasi-experimental design. The study involved eighth-grade pupils from a junior high school in Serang City, who were divided into three classes and given different learning techniques. A learning outcomes exam, a self-efficacy questionnaire, and a motivation survey were used to collect data. To identify significant differences between groups, the obtained data were evaluated using a t-test, one-way ANOVA, and a post hoc Tukey HSD test. The study found that the three strategies had a substantial impact on self-efficacy, motivation, and learning results in the cognitive domain. The practice problem method is more effective at boosting self-efficacy, the video modelling example at raising learning motivation, and the worked example at enhancing learning results in cognitive areas. These findings emphasize the necessity of selecting instructional approaches that are consistent with the targeted learning objectives. Future research should look into the effectiveness of these methods across different topic areas, grade levels, or in combination with other pedagogical approaches to acquire a more complete knowledge of their effects
Analysis of Students’ Mathematical Representation Ability in Working on Conical Section Problems
Full text linkThis study aims to analyze students’ representational ability in working on conic section problems. This study is included in case study research using a qualitative approach. The subjects of this study were students of Widya Dharma University. This study used the primary instrument (researcher) and auxiliary instruments (tests and interview guidelines). The validity of this research data was supported by triangulation techniques that compared the results of the conic section test work with those of the interview. The data analysis stage of this study consisted of data condensation, data presentation, and conclusion. The results of this study are presented as a profile of students’ representational ability when working on geometry problems. In ellipse, parabola, and hyperbola problems, writing important information in the problem, not making analogies, and writing incorrect equations. The profile of students’ visual representation ability shows that they are unable to draw sketches of ellipse, parabola, and hyperbola graphs correctly. In ellipse, parabola, and hyperbola questions, the problem is that they do not provide explanatory sentences for each stage of working on the questions.Penelitian ini bertujuan untuk menganalisis kemampuan representasi mahasiswa dalam mengerjakan soal irisan kerucut. Penelitian ini termasuk dalam penelitian studi kasus dengan menggunakan pendekatan kualitatif. Subjek penelitian ini adalah mahasiswa Universitas Widya Dharma. Penelitian ini menggunakan instrumen utama (peneliti) dan instrumen bantu (tes dan pedoman wawancara). Validitas data penelitian ini menggunakan teknik triangulasi yaitu membandingkan hasil tes pengerjaan irisan kerucut dengan hasil wawancara. Tahap analisis data penelitian ini terdiri dari tahap kondensasi data, penyajian data, dan penarikan simpulan. Hasil penelitian ini berupa profil kemampuan representasi mahasiswa dalam mengerjakan soal geometri. Pada soal elips dan parabola yaitu menuliskan informasi penting dalam soal, tidak membuat analogi, dan menuliskan persamaan yang salah. Pada soal hiperbola yaitu langsung mengubah persamaan umum ke dalam persamaan hiperbola baku dan tidak membuat analogi ke dalam bentuk aljabar. Profil kemampuan representasi visual mahasiswa yaitu tidak mampu menggambar sketsa grafik elips, parabola, dan hiperbola dengan benar. Pada soal elips, parabola dan hiperbola tidak disediakan kalimat penjelas pada setiap tahapan pengerjaan soal
The Effect of Cinnamon Bark Extract (Cinnamomum burmanii) on Catalase Activity Levels in Hyperglycemic Rats
Full text linkBackground: Hyperglycemic is a condition characterized by elevated blood glucose levels, with serum blood glucose levels exceeding 126 mg/dL. Hyperglycemia can induce oxidative stress. Oxidative stress occurs due to an increase in free radicals or a decrease in antioxidant defense activity. Cinnamon bark can enhance antioxidant levels and decrease indicators of oxidative stress. This study examines the impact of cinnamon bark extract on catalase activity levels in hyperglycemic rats.
Method: This study used an experimental design with a post-test-only group design. The rats were divided into 5 groups, namely the negative control group (K-), the positive control group (K+), treatment group 1 (dose 100 mg/kgBW), treatment group 2 (dose 200 mg/kgBW) and treatment group 3 (dose 300 mg/kgBW) with 6 rats each. The normality test was carried out using the Shapiro-Wilk test followed by One Way ANOVA.
Result: The administration of cinnamon bark extract has been shown to increase catalase activity levels. The most significant increase was observed in dose group 1, with an average of 5.62 Units/mg, which is higher than the control group + (K+), at 3.88 Units/mg.
Conclusion: Administration of bark extract has been shown to increase catalase activity in hyperglycemic Rats
Transformational Leadership and Workload Driving Performance through Innovation and Job Satisfaction in Rural Education
Full text linkThis study examines how transformational leadership and workload drive teacher performance through innovative work behaviour and job satisfaction in a rural educational context. While previous studies have explored these variables separately, empirical evidence integrating leadership, workload, innovation, and satisfaction within rural education settings remains limited. Using a quantitative cross-sectional design, data were collected from 362 teachers in Kerinci District, Jambi Province, Indonesia, and analysed using Partial Least Squares Structural Equation Modelling (PLS-SEM). The results show that transformational leadership significantly influences innovative work behaviour (β = 0.386, p < 0.001) and job satisfaction (β = 0.120, p = 0.010). Workload emerges as the strongest predictor of innovative work behaviour (β = 0.578, p < 0.001) and job satisfaction (β = 0.648, p < 0.001). Furthermore, innovative work behaviour (β = 0.171, p = 0.015) and job satisfaction (β = 0.497, p < 0.001) positively affect teacher performance. These findings highlight that teacher performance in rural education is shaped not only by inspirational leadership but also by structured and manageable workloads that foster innovation and satisfaction. This study contributes to leadership and organizational behaviour literature by clarifying the mechanisms through which leadership and workload influence performance in developing-region educational contexts and offers practical implications for school leadership and educational policy
Pengembangan Modul Keanekaragaman Genetik Jagung Lokal Gorontalo Untuk Pembelajaran Biologi SMA: (Development of a Genetic Diversity Module for Gorontalo Local Corn for High School Biology Learning)
Full text linkThe lack of contextual teaching materials that highlight local potential is a challenge in biology learning in schools. This study aims to determine the validity and practicality of the learning module on genetic biodiversity in local Gorontalo corn plants. This study uses the Research and Development method. The learning module was developed using the ADDIE model, up to the limited trial stage. The research subjects were 25 grade X high school students. The learning module was validated by material experts and media experts, and the practicality of using the module in learning biodiversity material was tested. The validation results showed that the module was very valid with an average percentage of 98% from material experts and 93.77% from media experts. The practicality of the module was also very high based on teacher responses of 97.77% and student responses of 98.06%. From the results of the validity and practicality tests, it can be concluded that the learning module on genetic biodiversity in local corn plants can be used in learning Biology for grade X high school, biodiversity material in schools.
Abstrak. Kurangnya bahan ajar kontekstual yang mengangkat potensi lokal menjadi tantangan dalam pembelajaran biologi di sekolah. Penelitian ini bertujuan untuk mengetahui validitas dan kepraktisan modul pembelajaran keanekaragaman hayati tingkat genetik pada tanaman jagung lokal Gorontalo. Penelitian ini menggunakan metode Research and Development. Modul pembelajaran dikembangkan dengan menggunakan model ADDIE, hingga tahapan uji coba terbatas. Subjek penelitian adalah 25 peserta didik kelas X SMA. Modul pembelajaran divalidasi oleh ahli materi dan ahli media, serta diuji kepraktisan penggunaan modul dalam pembelajaran materi keanekaragaman hayati. Hasil validasi menunjukkan bahwa modul sangat valid dengan rata-rata persentase 98% dari ahli materi dan 93,77% dari ahli media. Kepraktisan modul juga sangat tinggi berdasarkan respons guru sebesar 97,77% dan respons peserta didik sebesar 98,06%. Dari hasil uji validitas dan kepraktisan, maka dapat disimpulkan bahwa modul pembelajaran keanekaragaman hayati tingkat genetik pada tanaman jagung lokal dapat digunakan dalam pembelajaran Biologi kelas X SMA, materi keanekaragaman hayati di sekolah
Pembelajaran Berbasis Proyek Berbentuk Terarium Dalam Botani Tingkat Rendah: Persepsi Mahasiswa Pendidikan Biologi: Project-Based Learning in the Form of a Terrarium in Lower Botany: Perceptions of Biology Education Students
Full text linkLower-level botany learning has been carried out using conventional lecture methods. Learning becomes less meaningful for students because students tend to be passive. The purpose of this study was to see how students perceive the application of the project-based learning (PjBL) model in lower-level botany courses. This research was conducted using a quantitative research model with a survey method. Data collection was carried out by giving questionnaires to students. As many as 85.7% of students stated that they felt that their understanding of lower-level botany had improved and 80% expressed interest in lower-level botany learning with PjBl. As many as 82.9% stated that they were able to design a terrarium well and 85.7% were able to state that PjBl helped them identify the morphology of cryptogamae. As many as 74.3% of students stated that they were motivated by group cooperation and 71.4% of them were able to link theory and practice. The final result was that 88.6% of students felt that this learning method improved their understanding of cryptogamae. Overall, low-level botany learning with PjBL for biology education students at Mulawarman University can improve students' understanding and interest in low-level botany courses.
Key words: Project-Based Learning (PjBL), Lower-Level Botany, Terrarium, Student Perceptio