Amwal Halil
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Pengaruh Kebisingan Lalulintas terhadap Konsentrasi Belajar Siswa SMP N 1 Padang Amwal Halil; Amel Yanis; Mustafa Noer
Jurnal Kesehatan Andalas Vol 4, No 1 (2015)
Publisher : Fakultas Kedokteran, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jka.v4i1.188

Abstract

AbstrakMasalah kebisingan karena lalulintas yang padat di daerah perkotaan menyebabkan sulitnya untuk mendapatkan lokasi sekolah yang tenang. Sekolah Menengah Pertama Negeri 1 Padang merupakan sarana pendidikan yang terletak di daerah perkotaan dan berada di pinggir jalan raya yang arus lalulintasnya padat. Tujuan penelitian ini adalah untuk mengetahui pengaruh kebisingan lalulintas terhadap konsentrasi belajar siswa SMP N 1 Padang. Penelitian ini menggunakan metode cross sectional comparative, dimana tingkat kebisingan dan tingkat konsentrasi belajar siswa dikumpulkan secara bersamaan. Pengukuran tingkat kebisingan menggunakan alat ukur sound level meter yang diukur pada dua titik yang berbeda, yaitu di sekitar kelas yang dekat dengan jalan raya dan di sekitar kelas yang jauh dari jalan raya. Tingkat konsentrasi belajar siswa diukur dengan menggunakan digit symbol test dan digit span test. Pengujian hipotesis dilakukan dengan uji statistik chi square dengan derajat kepercayaan 95% (p=0,05). Hasil pengukuran tingkat kebisingan di sekitar kelas yang dekat dengan jalan raya sebesar 69.62 dB dan tingkat kebisingan di sekitar kelas yang jauh dari jalan raya sebesar 72.80 dB. Tingkat konsentrasi belajar siswa yang dekat dengan jalan raya menggunakan digit symbol test didapatkan jumlah siswa yang: kurang konsentrasi = 7, cukup konsentrasi = 33, dan dengan digit span test di dapatkan yang kurang konsentrasi =7 dan cukup konsentrasi = 33. Tingkat konsentrasi belajar siswa yang jauh dari jalan raya dengan menggunakan digit symbol test didapatkan: kurang konsentrasi = 5, cukup konsentrasi = 34 dan dengan digit span test di dapatkan: kurang konsentrasi = 9 dan cukup konsentrasi = 30. Hasil penelitian ini menunjukkan bahwa tidak ada perbedaan tingkat konsentrasi yang bermakna antara kelas yang dekat dengan jalan raya dan kelas yang jauh dari jalan raya.Kata kunci: kebisingan lalulintas, siswa, konsentrasi belajarAbstractNoise problems due to heavy traffic in urban area making it is difficult to get a quiet location. SMP N 1 Padang is educational facilities that is located alongside the borderline street in the center of city that has heavy traffic. The objective of this study was to determine the effect of traffic noise upon learning concentration of students in SMP N 1 Padang. The design of the research was cross-sectional comparative study. The instrument to measure the noise level was sound level meter. The noise is measured at two different point, the classroom that was close to the highway and the classroom that is away from the highway. Learning concentration level of student was measured by using digit symbol test and digit span test. Hypothesis analysis was done by chi square test with 95% of confidence level (p = 0.05). The measurement result of noise level around the classroom that was close to the highway was 69.62 dB and the noise level around the classroom that was away from the highway was 72.80 dB. The learning concentration level of the student that was close to the highway by using digit symbol test were: less concentration= 7, moderate concentration= 33, and by digit span test were: less concentration= 7, moderate concentration= 33. The learning concentration level of the student that was away from the highway by using the digit symbol test were: less concentration= 5, moderate concentration= 34, and by using the digit span test the result were: less concentration= 9, moderate concentration= 30. The result showed that there was no significant different level of learning concentration between students in classes that were close to the highway and classes that were away from the highway.Keywords: traffic noises, students, learning concentration
Eksisi Luas dan Rekonstruksi dengan Flap pada Karsinoma Sel Basal di Daerah Frontal Kanan: Laporan Kasus: Laporan Kasus Oktavenra, Ari; Halil, Amwal
Cermin Dunia Kedokteran Vol 53 No 07 (2026): Juli 2026
Publisher : PT Kalbe Farma Tbk.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55175/cdk.v53i07.1720

Abstract

Introduction: Basal cell carcinoma is a type of non-melanoma skin cancer characterized by basaloid cells that form lobules, columns, bands, or strands. The primary goal of basal cell carcinoma treatment is to completely remove the tumor while preserving function and physical appearance as much as possible. Case: A 70-year-old man with basal cell carcinoma of the right frontal region-superior eyelid OD. Diagnosis was made based on physical examination and histopathological findings. The procedure included wide excision and frozen-section analysis of the surgical margins in the superior eyelid region and the medial canthus, with positive margins; reconstruction was performed with a rotational flap and a skin graft. Anatomical pathology results showed well-differentiated infiltrating basal cell carcinoma. The most effective therapy is surgery. Discussion: In this case, a diagnosis of mixed nodular and pigmented BCC was established based on clinical and histopathological findings, followed by surgical excision and reconstruction using an advancement flap appropriate for the defect in the frontal region. This approach yields a high cure rate; however, long-term follow-up remains necessary given the risk of recurrence and the emergence of new BCC lesions. Conclusion: Basal cell carcinoma generally grows slowly, often developing locally without spreading or metastasizing. Appropriate management can improve quality of life and life expectancy.