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SENSITIVITY APPROACH OF OPTICAL SENSORS OF CHOLESTEROL DETECTION THROUGH GAUSSIAN BEAM AND QUASI-GAUSSIAN BEAM Harun, Sulaiman Wadi; Yasin, Mohamad; Budiyanto, Mohammad
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n1.p22-31

Sensitivity is the comparison result between changes in output signal intensity and changes in input signal shift sensor. The purpose of this study was to analyze the sensitivity of fiber optic sensors using mathematical analysis through the Gaussian beam approach and quasi-Gaussian beam compared with the sensitivity of the optical sensor experimental results so that it can find the correct approach of sensitivity values between theory and experiment. The research method used mathematical analysis and experimental methods and mathematical descriptions for the description of the bundle optical fiber used in the experiment until the sensitivity equation is obtained. The results of the mathematical analysis of the Gaussian beam sensitivity values obtained of S = 0.004 mV ppm-1 and the sensitivity of quasi-Gaussian beam of S = 0.08 mV ppm-1. The results of the sensitivity of experimentally obtained S = 0.11 mV ppm-1. Based on the results of mathematical, experimental analysis, and sensor performance, sensitivity through the flat mirror reflection field, it can be concluded that the sensitivity of the optical fiber sensor tends to approach through the quasi-Gaussian beam approach to determine cholesterol concentration.

PENERAPAN STRATEGI BELAJAR PETA KONSEP UNTUK MENINGKATKAN HASIL BELAJAR MAHASISWA PADA MATA KULIAH SAINS SEKOLAH PRODI S-1 PENDIDIKAN IPA UNESA SURABAYA Astriani, Dyah; Budiyanto, Mohammad; Setiawan, Beni
Jurnal Penelitian Pendidikan IPA Vol 1, No 1 (2016): First Publication
Publisher : Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v1n1.p37-42

AbstrakKualifikasi SDM pada kerangka KKNI menyebutkan bahwa mahasiswa Prodi S1 Pendidikan Sains harus menguasai konsep teoritis yang mendalam pada bidang ilmu IPA dan pendidikan IPA serta mampu memformulasikan penyelesaian masalah secara prosedural. Dengan demikian, penelitian ini bertujuan untuk meningkatkan pemahaman konsep mahasiswa melalui kegiatan pembuatan peta konsep dalam menganalisis materi serta menganalisis kegiatan. Desain penelitian ini adalah pra eksperimental dengan tipe One Group Pretest-Posttest Design. Hasil yang diperoleh sejauh ini adalah 1) hasil belajar siswa terbagi menjadi: A. kegiatan analisis materi pada KD yang terpilih dengan materi tiap KD sebagai berikut: a) pengukuran dengan nilai 77,1; sifat bahan dengan nilai 81,3; pemanasan global dengan nilai 72,9; listrik statis dengan nilai 81,3; atom ion molekul dengan nilai 70,8; fluida dengan nilai 91,7; Interaksi Makhluk hidup dan lingkungannya dengan nilai 75,0; Pewarisan sifat dengan nilai 85,4; Zat aditif, adiktif, dan psikotropika dengan nilai 75,0; Bioteknologi dengan nilai 81,3; Tanah dengan nilai 70,8; Sistem ekskresi dengan nilai 91,7; Sistem jaringan tumbuhan dengan nilai 75,7; Sistem reproduksi dengan nilai 77,8; Sistem gerak manusia dengan nilai 73,4; Perkembangan penduduk dengan nilai 75,2; B. rata-rata hasil kegiatan analisis kegiatan praktikum didapat sebagai berikut: a) membuat peta konsep sebesar 8,2; b) hasil belajar mahasiswa materi IPA diperoleh dengan membandingkan hasil pretest dan postest mahasiswa dengan menggunakan N-Gain ternormalisasi dan didapat rata-rata sebesar 0,34, skor tersebut mengindikasikan bahwa terjadi peningkatan hasil belajar, tetapi tidak terlalu signifikan.Kata Kunci: peta konsep, analisis materi, analisis kegiatan praktikum, sains sekolah

Sensitivity Approach of Optical Sensors of Cholesterol Detection through Gaussian Beam and Quasi-Gaussian Beam Budiyanto, Mohammad; Yasin, Mohamad; Harun, Sulaiman Wadi
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n1.p22-31

Sensitivity is the comparison result between changes in output signal intensity and changes in input signal shift sensor. The purpose of this study was to analyze the sensitivity of fiber optic sensors using mathematical analysis through the Gaussian beam approach and quasi-Gaussian beam compared with the sensitivity of the optical sensor experimental results so that it can find the correct approach of sensitivity values between theory and experiment. The research method used mathematical analysis and experimental methods and mathematical descriptions for the description of the bundle optical fiber used in the experiment until the sensitivity equation is obtained. The results of the mathematical analysis of the Gaussian beam sensitivity values obtained of S = 0.004 mV ppm-1 and the sensitivity of quasi-Gaussian beam of S = 0.08 mV ppm-1. The results of the sensitivity of experimentally obtained S = 0.11 mV ppm-1. Based on the results of mathematical, experimental analysis, and sensor performance, sensitivity through the flat mirror reflection field, it can be concluded that the sensitivity of the optical fiber sensor tends to approach through the quasi-Gaussian beam approach to determine cholesterol concentration.

SCIENTIFIC LITERACY OF COVID-19 IN THE FIRST YEAR PANDEMIC: DESIGN AND DEVELOPMENT TEST Purnomo, Aris Rudi; Sudibyo, Elok; Budiyanto, Mohammad; Sari, Dhita Ayu Permata; Sabtiawan, Wahyu Budi
Jurnal Penelitian Pendidikan IPA Vol 6, No 1 (2021): Juni 2021
Publisher : Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v6n1.p48-55

Scientific literacy skills about the plague were needed during the Covid-19 pandemic. Students who previously studied at school now have to spend a lot of time at home studying. They are then primarily very dependant on the internet to get valuable information of academic purposes. However, concerns arise that massive access to information online has created problems with understanding Covid-19 which eventually may risk their attitude. Therefore, this study aims to analyze scientific literacy of students against the ongoing outbreak in terms of the contents. The research employs ADDIE model due to its compactness towards its process. The stages reflect the process of developing, studying, and implementing contagion literacy assessment products for junior high school students. The instrument design procedure consisted of literature study, development of test items, internal validation, and pilot project. The feasibility will be reviewed from the results of the validity and reliability. The data to be collected in this research are quantitative and qualitative data related to the validity and reliability. The results of the face validity test from three experts show that the questions arranged in the literacy instrument are considered valid with minor revision in terms of materials and construction. The pilot project, however, showed an opposite result. The instrument was scored invalid because 14 out of 20 questions were invalid. The influencing factor found was students was not ready to read long passage or data in digital format. Transmission, prevention, and treatment are the issues in which student are familiar with. Overall, the instrument was sufficient to observe what students know and needs much revision in terms of format.

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