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All Journal Jurnal Pendidikan Fisika Jurnal Penelitian Pendidikan IPA (JPPIPA)
Hakim S, Abd
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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 1 
THE EFFECT OF INDUKTIVE LEARNING MODEL ON LEARNING OUTCOMES STUDENT IN SUBJECT MOMENTUM AND IMPULSE Putri Alkhasmi Harahap; Abd Hakim S
Jurnal Pendidikan Fisika Vol 8, No 1 (2019)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22611/jpf.v8i1.11342

Abstract

This study aims to determine the effect of induktive learning model  on learning outcomes student in subject momentum and impulse Class X second semester SMA Panca Budi Medan T.P  2017/2018. This research is a quasi experiment. The population in this study throughout the second semester class X  student of SMA Panca Budi Medan consists of ten classes. The research sample was determined by random cluster sampling. Class X MIA 2 as a class use induktive learning model and X MIA 3 use conventional learning. The instrument in this research is multiple choice test which consists of 20 items. Post-test results obtained with an average velue of 71,71 experimental class and control class 61,43. The results of t test th > tt  obtained  3,969 <1,997. There was a different result influence students' learning outcomes  using induktive learning model better of learning conventional in the subject momentum and impulse in class X SMA Panca Budi Medan T.P. 2017/2018
Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE UV-Vis analysis, variable signal analysis, sensor sensitivity and SEM-EDS Abd Hakim S
Jurnal Penelitian Pendidikan IPA Vol. 7 No. SpecialIssue (2021): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7iSpecialIssue.1248

Abstract

This study aims to characterize the phosphate buffer and urease enzymes through UV-Vis and SEM-EDS absorbance spectra using tungsten as an indicator electrode. The method used is a potentiometric biosensor with urease enzyme immobilization technique for urea analyte. A small detection range of 10-5-10-4M has been studied with PVA-enzyme coated indicator electrodes coated with PVC-KTpClPB. On this basis, the researchers increased the detection range by analyzing glutaraldehyde (GA) mixed with PVA-enzyme and o-NPOE mixed with PVC-KTpClPB. The best results of GA mixed PVA-enzyme at GA2.9% UV-Visible analysis. The best results were PVA-enzyme coated indicator electrodes coated with GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS analysis on PVA-enzyme samples 3x coated with GA 1x and PVC-KTpClPB-o-NPOE 1x with o-NPOE variation of 61% and 66%.
Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS, FTIR and XRD analysis Abd Hakim S
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 1 (2022): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i1.1265

Abstract

This study aims to characterize the tungsten-urea analyte indicator electrode. The method used is biosensor potentiometry with urease enzyme immobilization technique. This indicator electrode was coated with PVA-enzyme coated with glutaraldehyde (GA) 2.9% coated with PVC-KTpClPB- o-NPOE with o-NPOE variation of 61% and 66%. Characterization of coated indicator electrodes using SEM-EDS, FTIR and XRD analysis. A1-4 61% indicator electrode sample coated PVA-enzyme 1x coated with glutaraldehyde (GA) 2.9% 1x coated PVC-KTpClPB- o-NPOE 1x, with o-NPOE 61%. A3-4 61% indicator electrode sample coated PVA-enzyme 3x coated with glutaraldehyde (GA) 2.9% 1x coated PVC-KTpClPB- o-NPOE 1x, with o-NPOE 61%. Likewise, the reasoning of samples A1-4 66% and A3-4 66%. There are four indicator electrodes made with the notation A1-4 61%, A1-4 66%, A3-4 61% and A3-4 66%. The best results were obtained at the indicator electrode sample A1-4 61%, contributing to the urea sensor of the potentiometer cell
OPTIMIZATION OF LEARNING WITH SCHOOLOGY FOR BEST PRACTICES IN QUALITY OF LEARNING OUTCOMES Satria Mihardi; Derlina ,; Alkhafi Maas Siregar; Abd Hakim S
Jurnal Pendidikan Fisika Vol 11, No 1 (2022)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpf.v11i1.34767

Abstract

The expected learning outcomes in pandemic learning are very different and need to be emphasized on certain things. Various ways are done by adding media, learning management systems, and learning aids are expected to help students learn something new. The new experiences learned will be important information for students to be able to develop their abilities. E-learning is an innovation that can be utilized in the learning process, not only in the delivery of learning materials but also in changes in the abilities of various student competencies. E-learning is an educational system that uses information technology in the teaching and learning process that can be done anywhere and anytime because the learning materials can be accessed remotely. The analysis used uses a survey system of qualitative data that describes the percentage of the use of several Learning Management Systems (LMS). This is done to determine the optimization of learning carried out with various LMS. There are 3 LMS used, namely: local LMS (SIPDA); Schoology; and Google Classroom. The three LMS will be used as material for comparison of user responses in learning Physics. This assessment is based on the use of the appropriate features of the three LMS. The picture shows the acceptance of respondents to Schoology reaching 90%. This seems to have a difference of around 20%-30% compared to the other two LMS. This shows that Schoology is more familiar with the features needed in e-learning. This makes it easy for users. Schoology is more ready to be used as an e-learning-based Physics learning platform.
Synthesis and Characterization of PVA-Enzyme/GA/PPy/ PVC-KTpClPB-o-NPOE Indicator Electrodes, XRD Analysis, FTIR and Variable Signal Analysis Abd Hakim S
Jurnal Penelitian Pendidikan IPA Vol 9 No 3 (2023): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i3.2389

Abstract

This study aims to synthesize and characterize PVA-Enzyme/GA/PPy/PVC-KTpClPB-o-NPOE indicator indicator electrodes, XRD and FTIR analysis and variable signal analysis for urea sensors. The method used is biosensor potentiometry with urease enzyme immobilization technique which analytes urea. Modify 6 mg of enzyme from the amount of 1 drop and 3 drops in 0.5 mL (50% water: 50% ethanol) in PVA solution and o-NPOE plasticizer in PVC-KTpClPB. The indicator electrode is designed in multi-membrane, namely PVA-Enzyme/GA/PPy/PVC-KTpClPB-o-NPOE. PPy was dissolved in H2SO4 at a concentration of 8 M. Modification of PVA-Enzyme/(GA 2.9%)/PVC-KTpClPB-(o-NPOE 61%) was carried out in one layer each. The number of enzyme drops to see the difference in the intensity of the XRD diffraction spectrum and the difference in the transmittance of the FTIR spectrum from the indicator electrode with multi membrane modified PPy with H2SO4 denoted H2SO4-1 and H2SO4-3, respectively. The best results were obtained on the indicator electrode with the notation H2SO4-1
Manufacture and Characterization of PVA-Enzyme/GA/PANI-HCl or PANI-p-toluentsulfonate/PVC-KTpClPB-o-NPOE Indicator Electrode Membranes, Analysis, XRD, SEM-EDX and FTIR Abd Hakim S
Jurnal Penelitian Pendidikan IPA Vol 9 No 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.5638

Abstract

This research aims at the synthesis and characterization of indicator electrode membranes consisting of PVA-Enzyme/GA/PANI/PVC-KTpClPB-o-NPOE, urea analyte. PANI-HCl and PANI-p-toluensulfonate conducting polymers, 61% and 66% o-NPOE plasticizer variations in PVC-KTpClPB, as well as urease enzyme activity in one or three drops of 0.5 mL PVA (50% water: 50% ethanol). The biosensor potentiometric method was used with the technique of immobilizing the urea enzyme which is the urea analyte. The multi-membrane indicator electrode is PVA-Enzyme/GA/PANI/PVC-KTpClPB-o-NPOE, PANI dissolved in HCl and p-toluensulfonic acid respectively at a concentration of 6 M and 2 M. Each membrane on the indicator electrode is coated with one time. Results of XRD analysis of the spectrum pattern of the PANI-HCl indicator electrode with intensities of 4400 a.u, 1386 a.u, 1724 a.u with a 2theta angle of 28.6 degrees, PANI-p-toluensulfonate with intensities of 10940 a.u, 9194 a.u, 5312 a.u with a 2theta angle of 18.2 degrees. SEM-EDX analysis showed differences in the morphology of the o-NPOE plasticizer of 61% and 66% as well as an increase in cps/eV from the number of drops of the urease enzyme, one drop was lower than three drops. FTIR analysis shows an increase in transmittance by PANI towards PPy. Analysis of the properties of a multi-membrane indicator electrode with one layer of the best sample is PANI-p-toluensulfonate
Co-Authors Alkhafi Maas Siregar Derlina , Ginting, Kadri Ibrahim Ibrahim Malau, Ekasari Putri Alkhasmi Harahap Satria Mihardi Tampubolon, Caine