Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Edumatsains Jurnal ComunitA Servizio
Leony Sanga Lamsari Purba
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Chemistry Education Library & Information Science Mathematics Nursing Physics Social Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengaruh Kandungan Oksigen Udara Sekolah Terhadap Konsentrasi Belajar Siswa Leony Sanga Lamsari Purba; Nelius Harefa
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1381

Abstract

Oxygen content in the surrounding air affects the oxygen intake of the human brain. In learning, the adequacy of brain oxygen affects students' readiness to begin learning, which can be observed through the concentration of student learning. Through this research, information on the effect of school air oxygen content on student concentration will be obtained. The study population was East Jakarta State High School, with a sample of SMA Negeri 9 Jakarta, SMA Negeri 91 Jakarta, SMA 61 Jakarta, SMA 71 Jakarta, SMA Negeri 14 Jakarta. The sampling technique is Purpose Sampling. To obtain information about the oxygen content of school air, measurements were carried out using a Disolved Oxsigen Meter (DO Meter) with an average result of 25.98 school air oxygen levels. validated. Data analysis was performed using exlel. The average concentration of student learning is 1.85 from a scale of 4. The results of hypothesis testing using SPSS 24 obtained tcount of 83.754> ttable of 2.776, with a significance level <0.05 ie 0.00. Furthermore, the results of the linear regression correlation test obtained r = 0.948, air oxygen levels around the school with the concentration of student learning at a sig level of 0.14 (sig 0.05). Both of the results of this analysis indicate that this shows that there is an influence of the oxygen content of the school air on the concentration of student learning with a positive correlation. Keywords : Air, Oxygen, Brain, Concentration, Learning
Efektivitas Pelatihan Pengelolaan Laboratorium dan Workshop Pembelajaran Sains untuk SMP dengan Pendekatan Kearifan Lokal di Kepulauan Mentawai Leony Sanga Lamsari Purba; Familia Novita Simanjuntak; Elferida Sormin; Nelius Harefa; Nova Irawati Simatupang; Sumiyati Sumiyati; St Fatimah Azzahra
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 4 No. 2 (2022): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v4i2.4220

Abstract

This community service activity is carried out to provide an understanding of environmental-based learning media, digital and virtual laboratories to teachers in the Mentawai Islands. The organizer of this PkM activity is the UKI Chemistry Education Study Program lecturer with Mentawai Islands teachers as participants. This activity starts from planning to evaluating the satisfaction of the implementation of PkM. Based on the information obtained, teachers who take part in the activities are generally teachers who teach <1 year (60%). Based on the evaluation results of the PkM service satisfaction survey, this activity was declared very feasible with a percentage of 92.8%. Furthermore, based on what was presented through a quiz to PkM participants, the most common activities regarding environment-based learning media and participants' expectations, in the future PkM writing papers will be held.
Co-Authors Elferida Sormin Familia Novita Simanjuntak Nelius Harefa Nelius Harefa Nova Irawati Simatupang St Fatimah Azzahra Sumiyati Sumiyati