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All Journal Medical Journal of Indonesia Kesmas: Jurnal Kesehatan Masyarakat Nasional Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi)
Achmad Zaki
Staf Pengajar Program Studi Pendidikan Dokter Fakultas Kedokteran Dan Ilmu Kesehatan Universitas Islam Negeri Syarif Hidayatullah Jakarta
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Medicine & Pharmacology Public Health

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Comparison of fracture site callus with iliac crest bone marrow as the source of plastic-adherent cells Zaki, Achmad; D., Ismail H.
Medical Journal of Indonesia Vol 22, No 2 (2013): May
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (571.448 KB) | DOI: 10.13181/mji.v22i2.531

Abstract

Background: Red marrow has been described as the main source of mesenchymal stem cells although its aspiration and isolation from bone marrow was reported to have significant donor site morbidity. Since secondary bone healing occurs through formation of callus as the result of proliferation and differentiation of mesenchymal stem cells, callus may become alternative source for mesenchymal stem cells. In this study, we compared the number of plastic-adherent cells from fracture site callus and bone marrow of iliac crest after two and four weeks of culture.Methods: Sixteen New Zealand rabbits were fracturized at the femoral shaft. Then, these rabbits were taken care. After two weeks of fracturization, 3 mL iliac crest bone marrow aspiration and callus extraction of eight rabbits were cultured (group I). The other eight rabbits were treated equally after four weeks of fracturization (group II). Simultaneously, the cultures were observed after one and two weeks. Four weeks later, they were harvested. Cells were counted using Neubauer hemocytometer. The average number of cells between the sources and groups were statistically analyzed using the unpaired t-test. Results: In group I, there were 2.6 ± 0.1 x 104 cells in the culture of iliac crest bone marrow aspirate and 2.5 ± 0.1 x 104 cells in culture of callus extract from fracture site (p = 0.34). In group II, there were 2.7 ± 0.1 x 104 cells and 2.1 ± 0.1 x 104 cells, respectively (p < 0.001).Conclusion: Fracture site callus at the second week post-fracturization may be potential as source of plastic-adherent cells compared with iliac crest bone marrow. (Med J Indones. 2013;22:70-5)Keywords: Bone marrow, fracture site callus, iliac crest, long bone, mesenchymal stem cell, plastic-adherent cells
Hubungan Aktivitas Fisik Berat dengan Back Pain pada Penduduk Usia Kerja di Jawa dan Bali Achmad Zaki
Jurnal Kesehatan Masyarakat Nasional Vol. 2 No. 4 Februari 2008
Publisher : Faculty of Public Health Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.556 KB) | DOI: 10.21109/kesmas.v2i4.263

Abstract

Penelitian ini bertujuan mengetahui hubungan lama aktivitas fisik berat dengan Gejala Back pain pada penduduk usia kerja 18 – 55 tahun di wilayah Pulau Jawa dan Bali. Penelitian ini menggunakan data sekunder Survei Kesehatan Nasional Tahun 2001. Penelitian ini menggunakan desain potong-lintang dengan metode analisis regresi logistik ganda. Hasil penelitian mendapatkan ada hubungan antara aktivitas fisik berat dengan gejala back pain, setelah dikontrol oleh variabel-variabel confounding seperti lama aktivitas fisik duduk atau sedikit berjalan (terkait pekerjaan ataupun tidak), jenis kelamin, dan pendidikan. Responden dengan lama aktivitas fisik berat (bekerja 1-5 jam) memiliki risiko 2,03 kali untuk mengalami gejala back pain dibandingkan kelompok yang tidak melakukan aktifitas fisik berat (95% CI 1,34-3,08). Responden dengan lama aktivitas fisik berat (bekerja >5 jam) memiliki risiko 1,60 kali untuk mengalami gejala back pain dibandingkan kelompok yang tidak melakukan aktifitas fisik berat (95% CI 0,55 - 4,63). Disarankan untuk pemberlakuan regulasi waktu kerja menggunakan metode waktu rehat pendek (short rest break), dimana pekerja yang harus bekerja selama 5-6 jam terus menerus perlu diistirahatkan di pertengahan waktu tersebut selama sekitar 20 menit.Kata kunci: Aktivitas fisik, back painAbstractThe objective of this research is to investigate the relationship between high occupational physical activity with back pain symptoms among working age population (18—55 years olds) in Java and Bali islands. This research used secondary data from National Health Survey 2001. This research was using the crosssectional design and was analyzed by multiple logistic regression. The study result shows that there are a relationship between high occupational physical activity with back pain symptoms after controlled with confounding variables such as: duration of occupational sitting and short walk activity, duration of nonoccupational sitting and short walk, gender and educational status. Respondents with duration of heavy occupational activity of 1-5 hours have 2,03 higher risk to get back pain symptoms compared to those not doing it (95% CI 1,34-3,08). Respondents with duration of heavy occupational activity of >5 hours have 1,60 risk to get back pain symptoms compared to those not doing it (95% CI 0,55 - 4,63).Keywords : Physical activity, back pain
PENGARUH KUALITAS PELAYANAN, SERVICESCAPE DAN BRAND IMAGE TERHADAP KEPUASAN KONSUMEN PADA BURGER BANGOR SIDOARJO Muzakqi, Mochammad Rifqian; Zaki, Achmad
Jurnal Ilmiah Manajemen, Ekonomi, & Akuntansi (MEA) Vol 8 No 1 (2024): Edisi Januari - April 2024
Publisher : LPPM STIE Muhammadiah Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31955/mea.v8i1.3909

Abstract

Kepuasan konsumen dalam beberapa faktor dapat mempengaruhi hal-hal tersebut yang mencakup kualitas dari layanan yang diberikan, layanancape dan citra merek. Melalui penelitian ini, bertujuan untuk mengamati kepuasan konsumen burger bangor Sidoarjo. Penelitian ini menerapkan pendekatan kuantitatif asosiatif. Populasi pada penelitian ini tidak diketahui. Sedangkan sampel yang dipakai menggunakan rumus slovin sebanyak 108 responden yang diperoleh menggunakan metode Purposive Sampling . Data diperoleh dari penyebaran kuesioner dengan google form yang berisi beberapa pernyataan dengan skala likert. Instrumen juga akan di uji dengan uji validitas serta reliabilitas. Data yang diperoleh dianalisis dengan metode IBM SPSS 24 dengan beberapa tahapan pengujian yaitu uji normalitas, multikolineritas, heterokedastisitas, analisis regresi linier berganda dan signifikasi parsial (Uji-T). Hasil penelitian menemukan bahwa kualitas pelayanan mempunyai pengaruh sebagian terhadap kepuasan konsumen, pelayanancape memberikan pengaruh sebagian terhadap kepuasan konsumen serta citra merek memberikan pengaruh sebagian terhadap kepuasan konsumen.
Co-Authors Ismail H. D. Muzakqi, Mochammad Rifqian