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All Journal The New Ropanasuri Journal of Surgery Envirous
Mirwan, Muhammad
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Public Health

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PEMANFAATAN LIMBAH KULIT BUAH DURIAN DAN SERBUK GERGAJI MENJADI BRIKET SEBAGAI BAHAN BAKAR ALTERNATIF Nugraha, Rizal Adi; Mirwan, Muhammad
Envirous Vol. 2 No. 2 (2022): Jurnal Envirous
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirous.v2i2.31

Abstract

Kebutuhan energi saat ini semakin meningkat pada penggunaan bahan bakar minyakdan gas disertai dengan pertumbuhan penduduk yang semakin bertambah membuatmasyarakat untuk mencari pengganti bahan bakar alternatif. Pemanfaatan limbahbiomassa dapat dijadikan sebagai bahan baku sumber energi alternatif yaitu briket.Briket dengan bahan baku limbah kulit durian dan serbuk gergaji denganmenggunakan perekat tetes tebu (Molase) dapat menjadi bahan bakar alternatif.Tujuan dari penelitian ini yaitu mengurangi beban lingkungan oleh limbah dengancara dimanfaatkan kembali dan dapat digunakan sebagai bahan bakar alternatif sertamemberikan informasi tentang pembuatan briket dan mengetahui nilai kalor, kuattekan, kadar air, kadar abu, dan uji nyala api untuk menghasilkan briket terbaik. Padapenelitian ini di lakukan perlakuan perbandingan limbah kulit durian dengancampuran serbuk gergaji 0:1, 1:0, 1:1, 1:2, 1:3, 2:1, 2:3, 3:1, 3:2 dengan menggunakanperekat molase 40%. Dari penelitian ini dihasilkan nilai kalor tertinggi dengan nilai5674,50 Kal/gr dari perbandingan 1:0 pada ukuran ayakan 30 mesh dengan lama nyalaapi selama 55 menit.
Potential of Tumor Cell Seeding and Clinical Impact on Percutaneous Breast Biopsy Tracks: A Literature Review Gunawan Wibisana, I G.N.; Mirwan, Muhammad
The New Ropanasuri Journal of Surgery Vol. 7, No. 2
Publisher : UI Scholars Hub

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Abstract

Introduction. Based on its effectiveness, a percutaneous breast biopsy was chosen because it has minimum side effects and fewer complications, does not distort the breast tissue architecture, and can be performed on an outpatient basis. However, the biopsy can damage the integrity of tumor cells, creating seeding at the site of the track made. Therefore, core biopsy is the method of choice for breast lesion sampling using a 14G needle that provides greater sensitivity. This study aims to explain whether the percutaneous biopsy track has the potential for the formation of tumor cell seeding and its clinical impact. Methods. Literature searches were conducted in online databases, including Cochrane Library, MEDLINE (PubMed), ScienceDirect, CINAHL (EBSCOhost), and Google Scholar. Results. Eight articles were selected after a literature search and review. Conclusion. The potential of tumor seeding formation in the percutaneous breast biopsy tracks varies statistically in number. Overall, the potential of tumor seeding in the percutaneous breast biopsy tracks varies, and the clinical impact is insignificant. Variations in the prevalence of tumor seeding still inconclusive the potential for tumor seeding formation in the percutaneous breast biopsy pathway, particularly core biopsy. Tumor seeding is only found microscopically and does not have a significant clinical impact.
The Correlation between Premenopausal Estrogen and Estrogen Receptors in Breast Cancer Kurnia, Ahmad; Pratama, Dedy; Mirwan, Muhammad
The New Ropanasuri Journal of Surgery Vol. 7, No. 2
Publisher : UI Scholars Hub

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Abstract

Introduction. The correlation between the premenopausal estrogen hormone and estrogen receptors is unknown. The hormone estrogen has a risk factor for causing breast cancer. Meanwhile, the estrogen receptor plays a role in determining further treatment plans in breast cancer patients. Patients with high estrogen receptors have a better prognosis. If the premenopausal estrogen hormone can affect the estrogen-receptor, then the estrogen hormone can be modified to have a better prognosis. Method. A cross-sectional study enrolled 32 subjects with complete data and was statistically analyzed to find the correlation between premenopausal estrogen hormone and estrogen-receptors. Results. The estradiol ranged from 15.3 − 89.8 pg/mL, and estrogen receptors showed a range of 10–90%. The Spearman correlation test between the estradiol and the estrogen receptor showed a p-value = 0.864 and a negative correlation coefficient of 0.032. Conclusion. Estrogen hormone is not statistically associated with estrogen receptors in premenopausal breast cancer patients, thus illustrating that the prognosis of breast cancer is not associated with the estrogen hormone
Co-Authors Dedy Pratama Gunawan Wibisana, I G.N. Kurnia, Ahmad Nugraha, Rizal Adi