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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences JRMSI - Jurnal Riset Manajemen Sains Indonesia PROSISKO : Jurnal Pengembangan Riset dan observasi Rekayasa Sistem Komputer Siber Journal of Advanced Multidisciplinary
Mohammad Zakaria, Mohammad
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Evaluation of Indigenous Potato Challisha (Solanum tuberosum L. Cv. Challisha) Somaclonals Tolerance to Salinity In Vitro Biswas, Md. Sanaullah; Islam, Md. Riazul; Zakaria, Mohammad
Journal of Tropical Life Science Vol 7, No 1 (2017)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.07.01.13

Abstract

Potato is one of the most important food crops in the world. It is generally sensitive to salinity and likes to grow in neutral soil. On the other hand, salinity is increasing alarmingly in the ever changing climatic conditions. Thus, the selection of salt tolerant potato cultivars is necessary to keep pace the production of potato. To select salt tolerant cultivars, here we attempt to compare the salinity level between indigenous and modern cultivars. In vitro selection of local and modern potato cultivars were investigated with five levels of NaCl (0, 30, 60, 90 and 120 mM). The indigenous potato Challisha and modern cultivars Diamant and Felsina were used as plant materials. Significant differences were noticed among the cultivars in response to different levels of NaCl. Plant growth and root development were gradually reduced with increased concentration of NaCl. All three cultivars were survived well with exhibiting different growth status up to 60 mM NaCl, but they performed poorly at 120 mM of NaCl. Cultivar Challisha performed better regarding shoot length, root length, the number of nodes per plantlet and the fresh weight per plant up to 90 mM of NaCl. Thus, we can conclude that local indigenous variety Challisha is salt tolerant comparing with the modern cultivated varieties.
Capital Structure Analysis Of Pharmaceutical Companies Listed On The Indonesian Stock Exchange Roswinna, Winna; Lusiana Yulianti, Maria; Suryaman, Suryaman; Zakaria, Mohammad; Maulana, Hendri
Siber Journal of Advanced Multidisciplinary Vol. 2 No. 4 (2025): (SJAM) Siber Journal of Advanced Multidisciplinary (January - March 2025)
Publisher : Siber Nusantara Research & Yayasan Sinergi Inovasi Bersama (SIBER)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/sjam.v2i4.393

Abstract

For many companies, the capital structure is an important part of the company. every company competes to innovate products, market expansion, quality human resources, this is done in order to increase the value of the company and get the maximum possible profit. The capital structure has an important goal, namely to maximize the value of the company and minimize the overall cost of capital. This study aims to examine the influence of profitability and liquidity on the capital structure of pharmaceutical companies listed on the Indonesia Stock Exchange through the company's financial statements, namely in the period from 2012 to 2021. The type of research used in this research is case study research with a quantitative approach and the data source used is secondary data. The processed data consists of data on debt, assets, equity and profits in the annual financial reports (Annual Report) of Pharmaceutical Companies Listed on the Indonesia Stock Exchange. The calculation technique used in this research is using the panel fund regression approach through the help of eviews 10. The results show that profitability and liquidity have a significant effect on capital structure individually, meaning that profitability and liquidity can affect capital structure.
Analisis Efektivitas Xderes Digital Terhadap Peningkatan Layanan Publik di Desa Kalideres ZAKARIA, MOHAMMAD
PROSISKO: Jurnal Pengembangan Riset dan Observasi Sistem Komputer Vol. 12 No. 1 (2025): Prosisko Vol. 12 No. 1 2025
Publisher : Pogram Studi Sistem Komputer Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/prosisko.v12i1.9438

Abstract

Abstrak - Penelitian ini bertujuan untuk mengembangkan dan mengevaluasi Xderes Digital, sebuah platform digital baru di Desa Kalideres yang memfasilitasi pelaporan keluhan masyarakat dan pengajuan berbagai jenis surat seperti SKTM, SKTM Umum, SKU Mikro, KK Sementara, migrasi, dan akta kelahiran. Penelitian ini menggunakan metode waterfall untuk membangun layanan dan metode survei untuk mengumpulkan data. Kuesioner disebarkan untuk mengukur kepuasan warga terhadap layanan publik sebelum dan setelah implementasi Xderes Digital. Analisis statistik dilakukan dengan uji validitas, reliabilitas, normalitas, homogenitas, dan uji t karena data tidak homogen. Hasil pengujian hipotesis menunjukkan nilai t-hitung sebesar 8.748 untuk kualitas layanan publik dan 9.433 untuk kepuasan warga, keduanya lebih besar dari t-tabel yang bernilai 1,668, dengan nilai signifikansi di bawah 0,05. Ini menunjukkan bahwa Xderes Digital secara signifikan meningkatkan kualitas layanan publik dan kepuasan warga di Desa Kalideres. Temuan ini mengonfirmasi bahwa Xderes Digital efektif dalam meningkatkan layanan publik dan kepuasan warga berdasarkan temuan dan bukti empiris yang ada. Kata Kunci: e-government, layanan publik, xderes digital
PENGARUH BOND RATING TERHADAP IMBAL HASIL SAHAM DI BURSA EFEK INDONESIA Ahmad, Gatot Nazir; Zakaria, Mohammad
JRMSI - Jurnal Riset Manajemen Sains Indonesia Vol. 2 No. 2 (2011): Jurnal Riset Manajemen Sains Indonesia
Publisher : Fakultas Ekonomi, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (103.403 KB)

Abstract

The purpose of this study is to determine the effect of bond rating on stock returns. Sample of this study covers 20 firms listed on Indonesia Stock Exchange. The research period is from 2006 until 2008. Controlling for systematic risk, earning per share and liquidity, the result show that bond rating has insignificant effect on stock returns. This suggests the bond rating announcement has no news to the investor. Further, contrast to the theory, the coefficient of bond rating is positive meaning the higher risk the low return and vice versa. Keywords : Bond Rating, Stock Return, Liquidity
Co-Authors Biswas, Md. Sanaullah Gatot Nazir Ahmad Hendri Maulana Islam, Md. Riazul Suryaman, Suryaman Winna Roswinna