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All Journal Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Ilmiah Universitas Batanghari Jambi Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika
Rahmad Efendi
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Mathematics Physics Other

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KARAKTERISASI BAHAN FERROELEKTRIK BARIUM STRONTIUM TITANAT (Ba0.3 Sr 0.7TiO3) DENGAN MENGGUNAKAN DIFRAKSI SINAR-X (XRD) Rahmad Efendi; Rahmi Dewi; Krisman '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Ferroelectric materials of  Barium Strontium Titanate  (BST) with its  composition  of Ba0,3Sr0,7TiO3  was  succesfully deposited by a solid solution method. The samples were prepared in the form of pellets  and then  were annealed  at  the temperature of 600, 700, 800oC.   Characteritation of the samples was performed  using X-Ray diffraction (XRD). The results of characteritation using XRD was described on a graph  of the intensity  vs. 2 theta. The XRD  patterns of  Ba0,3Sr0,7TiO3  have  peaks. It was confirmed that the material of Ba0,3Sr0,7TiO3 has cubic crystalline structure, and its lattice parameter was  in average of 3,961 Å. The particle sizes (D) and lattice strains (η) of the material that was annealed at temperature of 600, 700, 800°C for 1 hour were 42.60, 44.43, 46.89 nm and -4,49x 10-3, -4,05 x 10-3,  -2,96 x 10-3, respectively. The increase in annealed temperature will raise the particle size and lattice strain.
PENGARUH PENERAPAN LKS BERORIENTASI MODEL PEMBELAJARAN REFLEKSI TERHADAP PENCAPAIAN KOMPETENSI FISIKA SISWA KELAS X DI SMAN 5 PADANG Rahmad Efendi; Masril Masril; Ratnawulan Ratnawulan
PILLAR OF PHYSICS EDUCATION Vol 6 (2015)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.382 KB) | DOI: 10.24036/1809171074

Abstract

Competency of students in physics class X cross-interest in SMAN 5 Padang has not achieved well. This is due to lack of interest or motivation of students in studying physics, and worksheets that use less attractive and makes learning becomes meaningful. This study carried out to investigate the effect of the applicatio-  LKS oriented reflection learning model on the achievement of competence physics class X in SMAN 5 Padang. The type of this research is a quasi-experimental with Randomized Control Group Only Design. The Populations of this research were all students in class X IS in  SMAN 5 Padang is who listed in the academic year 2014/2015. Sample of this research was selected by purposive random sampling technique and the class was selected as the experimental class is X IS 3 and the control class is X IS 4. The instrument is used to collect data is written test for cognitive competency and observation sheet for affective competence and performance assessment form for the psychomotor competency. Based of the research that has been done, it was concluded that the LKS oriented reflection learning model can improve the competency of physics students in competency knowledge and skills but not the attitude of competency
Stunting dan Pencegahannya di Desa Pulau Balai, Kecamatan Pulau Banyak, Aceh Singkil Desi Safitri; Fauzan Arif; Fitri Handayani; Mirna Juwita; Rahmad Efendi; Salwa Sabila
Jurnal Ilmiah Universitas Batanghari Jambi Vol 22, No 3 (2022): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v22i3.2788

Abstract

Stunting ia a condition in a child`s growth where the growth is not in accordance with his age due to lack of nutritional intake in accordance with the dose and for a long period of time or also due to other causes such as early marriage. One of them is in Aceh Singkil district which was almost in the red category with a prevalence of 29.6 percent of stunting cases in 2021. This research is an observational study which was carried out in Pulau Balai Village, Pulau Banyak District, Aceh Singkil Regency, so students of KKN UIN SU held counseling about the dangers of early marriage to prevent stunting and also counseling to the community to explain about stunting due to the lack of public knowledge about it. The results achieved can provide an understanding to the public about the dangers of stunting, as well as the stunting problem that occurs in Pulau Balai Village and find out the causes and ways to prevent stunting so that stunting cases that occur in Pulau Balai Village can be prevented and not increased.
Co-Authors Desi Safitri Fauzan Arif Fitri Handayani Krisman ' Masril Masril Mirna Juwita Rahmi Dewi Ratnawulan . Salwa Sabila