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All Journal Jurnal Biologi Tropis Jurnal Ilmiah Profesi Pendidikan
Istiqomah Istiqomah
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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The Comparison of Hemoglobin Levels, Blood Oxygen Saturation, and Breaths Frequency on The Lowlander and Highlander Syamsul Bahri; Lalu Hasan Nasirudin Zohri; Istiqomah Istiqomah; M. Y. Yusuf; Hendra S. Putra
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3240

Abstract

Geographical conditions affect human physical and physiological conditions, one of the examples is the height of residence that can make the respiratory system different among population groups. This study aims to compare the respiratory system between highlanders and lowlanders in terms of hemoglobin levels, blood oxygen saturation, and breaths frequency. The research model used was a comparative study with a purposive sampling method based on: age criteria with a range of 16-19 years, a minimum of 6 months stayed at the research location, and there is no recorded respiratory system disease. Data analysis used was independent t-test with Shapiro-Wilk prerequisite test for normality and one-way ANOVA for homogeneity, then Mann-Whitney test for follow-up non-parametric test. The results showed that the highlanders generally have oxygen saturation and hemoglobin levels with an average value of 98.81% and 14.69g/dL higher than those in the lowlands with a value of 97.86% and 13.14g/dL. On the other hand, the average value of breath frequency of highlanders is 17.38/minute which tends to be lower than that of lowlanders with 24.17/minute. The prerequisite test showed highlanders oxygen saturation data that were not normally distributed with a significance value of 0.003, then oxygen saturation data and breath frequency were not homogeneous with a significance value of 0.000 and 0.003 respectively. The comparative test showed a significance value of 0.002 for hemoglobin through independent t-test, then obtained asymptomatic significance values ​​of 0.004 and 0.000 for oxygen saturation and breaths frequency through the Mann-Whitney test. Based on the significance value obtained, it can be stated that there are significant differences in hemoglobin levels, oxygen saturation, and breaths frequency per minute between highland and lowland residents. It is recommended to conduct further research on lung capacity and chest cavity index to provide a more holistic explanation of the differences in the respiratory system between highland and lowland residents.
Pengaruh Model Discovery Learning Berbantuan PhET Simulations terhadap Pemahaman Konsep Peserta Didik pada Fluida Statis Istiqomah Istiqomah; Susilawati Susilawati; I Wayan Gunada
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 3 (2026): Agustus
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i3.5183

Abstract

Discovery learning adalah suatu model pembelajaran yang menggunakan stimulation sebagai titik awal pembelajaran. Penelitian ini bertujuan untuk mengetahui pengaruh model discovery learning berbantuan phet simulations terhadap pemahaman konsep peserta didik pada fluida statis. Metode penelitian yang digunakan adalah kuasi eksperimen dengan desain penelitian nonequivalent control group design. Populasi penelitian adalah peserta didik kelas XI A SMAN 2 Labuapi sebanyak 56 peserta didik. Sampel ditentukan menggunakan teknik sampling jenuh, dengan kelas XI A1 sebanyak 28 peserta didik sebagai kelas kontrol, dan kelas XI A2 sebanyak 28 peserta didik sebagai kelas eksperimen. Instrumen penelitian berupa tes pemahaman konsep berbentuk pilihan ganda 20 butir soal. Hasil uji instrumen menunjukkan bahwa terdapat 17 butir soal valid dan 3 butir soal tidak valid, instrumen memiliki koefisien reliabilitas sebesar 0,906 sehingga dinyatakan reliabel, taraf kesukaran terdiri atas 2 butir soal mudah, 16 butir soal sedang, dan 2 butir soal sukar, sedangkan hasil uji daya beda menunjukkan 11 butir soal berkategori baik sekali, 6 butir soal baik, 2 butir soal cukup, dan 1 soal jelek. Analisis data dilakukan menggunakan uji prasyarat yang meliputi uji normalitas dan uji homogenitas, uji hipotesis menggunakan uji-t, serta uji N-Gain per indikator pemahaman konsep. Hasil uji prasyarat menunjukkan bahwa data berdistribusi normal dan homogen, sedangkan hasil uji hipotesis menunjukkan bahwa nilai thitung (2,40) lebih besar daripada ttabel (2,005), sehingga H0 ditolak dan Ha diterima. Hasil uji N-Gain per indikator, kelas eksperimen memperoleh peningkatan yang lebih tinggi pada enam indikator pemahaman konsep, yaitu indikator menafsirkan, mencontohkan, mengklasifikasikan, merangkum, menyimpulkan, dan menjelaskan. Sedangkan pada indikator membandingkan peningkatan lebih rendah daripada kelas kontrol. Dengan demikian, dapat disimpulkan bahwa model discovery learning berbantuan phet simulations berpengaruh terhadap pemahaman konsep peserta didik pada materi fluida statis.
Co-Authors Hendra S. Putra I Wayan Gunada Lalu Hasan Nasirudin Zohri M. Y. Yusuf Susilawati - Syamsul Bahri