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All Journal Formica Education Online Jurnal Biologi Tropis JaManKu : Jurnal Manajemen dan Kewirausahaan
Tri Suci Handayani
Prodi Pendidikan Biologi
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Social Sciences

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PENGARUH PEMBELAJARAN BERBASIS MASALAH TERHADAP PENGUASAAN KONSEP DAN KECAKAPAN BERPIKIR SISWA KELAS XI PADA KONSEP SISTEM PENCERNAAN Handayani, Tri Suci; Sudargo, Fransisca; Nuraeni, Eni
Formica Education Online Vol 1, No 1 (2014): Formica Education Online
Publisher : Formica Education Online

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

Abstract

Penelitian ini bertujuan untuk mengkaji pengaruh pembelajaran berbasis masalah terhadap penguasaan konsep dan kecakapan berpikir siswa kelas XI pada konsep sistem pencernaan. Metode penelitian yang digunakan adalah Quasy Experimental dengan desain Nonequivalent Control Group Design. Sampel penelitian adalah siswa kelas XI IPA 6 sebagai kelas kontrol dan XI IPA 7 sebagai kelas eksperimen di SMAN 1 Cimahi yang dipilih secara cluster random sampling. Kelas eksperimen mendapat perlakuan menggunakan pembelajaran berbasis masalah sementara kelas kontrol menggunakan pembelajaran konvensional. Instrumen yang digunakan adalah tes penguasaan konsep yang terdiri dari 25 soal meliputi jenjang C1 sampai C4, tes kecakapan berpikir yang terdiri dari 7 Soal, dan angket untuk kelas eksperimen. Hasil pengolahan dan analisis data diperoleh nilai signifikansi posttest penguasaan konsep 0,301 dan nilai signifikansi posttest kecakapan bepikir sebesar 0,221. Sementara hasil uji beda rata-rata posttest indikator kecakapan berpikir siswa secara berturut-turut adalah, 0,657; 0,662; 0,117; dan 0,376. Dengan demikian dapat disimpulkan bahwa tidak terdapat perbedaan penguasaan konsep dan kecakapan berpikir yang signifikan antara kelas eksperimen dengan kelas kontrol. Kata kunci : PBM, Penguasaan Konsep, Kecakapan Berpikir
PENGARUH KESELAMATAN DAN KESEHATAN KERJA (K3) TERHADAP PRESTASI KERJA KARYAWAN PADA PT. PERTAMINA (PERSERO) MEDAN Handayani, Tri Suci
JaManKu: Jurnal Manajemen dan Kewirausahaan Vol. 5 No. 02 (2024): Artikel Februari 2024
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jamanku.v5i02.1080

Abstract

Occupational Health and Safety (K3) is a system of programs designed for both workers and employers in an effort to prevent the occurrence of occupational accidents and diseases caused by working relations in the work environment by identifying the things that potentially cause workplace accidents and anticipatory action in the event of such a thing. The resulting impact of this workplace accidents can be bad, such as the loss of lives, disability, damage to production, which is ultimately detrimental to all parties. In Indonesia, every company has to follow the program of the Occupational Health and Safety (K3), but can be seen in workplace accidents are still common. The purpose of this research was to determine the effect of occupational safety and health (K3) on employee performance in PT. Pertamina (Persero) Medan. Digunakana research method is simple linear regression. The estimation deskriptif showed that is company an very important for health and safety (K3) on employee company and the health and safety (K3) positif and significant effect on employee performance in PT. Pertamina (Persero) Medan.
The Influence of PSB Application on the Growth of Aloe vera in a Verticulture Cultivation System Handayani, Tri Suci; Rahmadina, Rahmadina; Selvia, Irda Nila
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9538

Abstract

Aloe vera is a tropical plant with significant potential to develop into a promising agricultural sector in Indonesia. To achieve high-quality Aloe vera harvests, it is important to pay attention to several growth conditions, especially plant care such as fertilization. This study aims to determine the effect of Photosynthetic Bacteria (PSB) fertilizer application and the effective dosage of PSB fertilizer for the growth of Aloe vera using vertical farming techniques. This research used a Non-Factorial Randomized Block Design (RBD), with treatment factors including: no application of PSB fertilizer (P0), PSB 5 ml/l (P1), PSB 15 ml/l (P2), and PSB 30 ml/l (P3). The research involved several stages of observation, including plant height, number of leaves, leaf width, leaf thickness, and root volume. The observed data were analyzed using ANOVA with the help of SPSS 26. If the ANOVA test showed a significant effect, further analysis was carried out using Duncan's Multiple Range Test (DMRT). The results showed that the application of PSB fertilizer had an effect on plant height (22.8 cm), leaf width (2.76 cm), number of leaves (7 leaves), leaf thickness (8.91 cm), and root volume (4 cm³). The best average treatment result for Aloe vera growth was obtained at a dosage of 15 ml/l (P2), indicating that Photosynthetic Bacteria (PSB) fertilizer at a dosage of 15 ml/l (P2) was sufficient to supply the necessary nutrients for the growth of Aloe vera.
Community Perceptions of Beef Cattle Farm Sustainability in Tanjung Selamat, Medan Tuntungan, North Sumatra Rahmadina, Rahmadina; Faisal, Agung; Putri, Annisyah Tri; Azhari, Raisa; Aprilia, Tiara; Handayani, Tri Suci
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6686

Abstract

This study aims to determine the community's perception of the sustainability of beef cattle farming and how obstacles are obtained in processing beef cattle waste, as well as the impact that the surrounding community feels as a result of beef cattle waste in Tanjung Selamat, Medan Tuntungan. The method of implementation of the activity uses a qualitative approach with a survey method through observation and socialization. Mеtodе obsеrvаtion of data obtained from information from local residents and direct observation independently. Respondents determined in this study were 10 respondents. In the waste indicator, the results obtained were 6 people (60%) out of 10 respondents, the hygiene indicator was 5 people (50%) out of 10 respondents, and the odor indicator was 8 people (80%) out of 10 respondents. The existence of obstacles from cattle farmers to the community due to the waste, odor, and cleanliness produced so that the odor indicator is found to have the highest level of disturbed category.
Co-Authors Aprilia, Tiara Azhari, Raisa Eni Nuraeni Faisal, Agung Fransisca Sudargo Irda Nila Selvia Putri, Annisyah Tri Rahmadina, Rahmadina