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All Journal IQTISHODUNA Jurnal Pendidikan Fisika Indonesia Journal of the Indonesian Tropical Animal Agriculture AKTSAR: Jurnal Akuntansi Syariah Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Asean Journal of Science and Engineering (AJSE)
S. Supriyadi, S.
Physics Department, Semarang State University
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Materials Science & Nanotechnology Physics

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APPLICATION OF VERTICAL GRADIENT METHODS OF MICROGRAVITY TIME FUNCTION TO DETERMINE GROUND WATER REDUCTION IN SEMARANG PERIOD OF 2013 Khumaedi, K.; Supriyadi, S.; Pradana, A.; Imam, S.; Yusuf, M.; Sarkowi, M.
Jurnal Pendidikan Fisika Indonesia Vol 11, No 2 (2015): July 2015
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v11i2.3267

Abstract

The development of Semarang city requires the availability of water for daily use and industry in line with population growth. Uncontrolled use of water will damage the groundwater system. The purpose of this study was to determine the zone of the decrease of water level to obtain information about area that utilizes excess water. The method used is a micro-gravity vertical gradient between times. Gravity measurements were done at 124 points spread evenly between May and October 2013. The results showed that there was a decrease in ground water level in the Industries area Kaligawe, Tanah Mas, and Tlogosori which was identified with the vertical gradient anomaly of micro gravity between the times from May to October 2013. The regions which have high negative changes in ground water level (1.2-1.4 m / year) were the monitoring wells Madukoro 2, LIK Kaligawe and PT Aquaria which are the industrial areas. Exploitation of ground water in industrial areas is relatively high compared to the other regions.Perkembangan kota Semarang yang menuntut ketersediaan air untuk keperluan sehari-hari dan industri seiring dengan pertambahan jumlah penduduk. Pemanfaatan air yang tidak terkendali akan menyebabkan sistem  air tanah rusak. Tujuan penelitian ini adalah menentukan zona penurunan muka air tanah untuk memperoleh informasi daerah yang memanfaatkan air secara berlebihan. Metode yang digunakan adalah gradien vertikal gaya berat mikro antar waktu. Pengukuran gaya berat di lakukan di 124 titik yang tersebar merata pada periode Mei dan Oktober 2013. Hasil peneltian menunjukkan telah terjadi penurunan muka air tanah di lingkungan Industri Kecil Kaligawe, perumahan Tanah Mas, Perumahan Tlogosori yang ditandai dengan anomali gradien vertikal gaya berat mikro antar waktu Mei-Oktober 2013. Wilayah yang memiliki perubahan muka air tanah negative tinggi (1,2-1,4 m/tahun), berada di sekitar sumur pantau Madukoro 2, LIK Kaligawe dan PT Aquaria dimana tutupan lahan di sekitar sumur pantau tersebut merupakan kawasan industri. Eksploitasi air tanah pada kawasan industri relatif tinggi jika dibandingkan dengan kawasan lainnya. 
Pengaruh Profitabilitas dan Solvabilitas Terhadap Yield Sukuk dengan Peringkat Sukuk Sebagai Variabel Moderator pada Perusahaan di Indonesia Setiyani, Eprisa Risky; Baihaqi, Jadzil; Supriyadi, S.
AKTSAR: Jurnal Akuntansi Syariah Vol 2, No 1 (2019): June 2019
Publisher : IAIN Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21043/aktsar.v2i1.5443

Abstract

This study aims to determine the effect of profitability and solvency on sukuk yields with Sukuk ratings as moderator variables. The population of this study is the company that issued Sukuk on the IDX in 2014-2017. By using a purposive sampling technique, there are 9 companies with 34 Sukuk as the final sample. This study uses a quantitative approach with secondary data types. The analysis technique uses multiple linear regression and Moderated Regression Analysis supported by IBM SPSS 24. The results are (1) Profitability does not have a significant effect on sukuk yield. This is because regardless of the company's profits, the investor still receives a refund and the fee specified. (2) Solvability has a significant positive effect on sukuk yield. (3) The sukuk rating is not able to moderate the relationship between profitability and sukuk yield. (4) Sukuk rating can moderate the solvency relationship with sukuk yield.
APPLICATION OF VERTICAL GRADIENT METHODS OF MICROGRAVITY TIME FUNCTION TO DETERMINE GROUND WATER REDUCTION IN SEMARANG PERIOD OF 2013 Khumaedi, K.; Supriyadi, S.; Pradana, A.; Imam, S.; Yusuf, M.; Sarkowi, M.
Jurnal Pendidikan Fisika Indonesia Vol 11, No 2 (2015)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v11i2.3267

Abstract

The development of Semarang city requires the availability of water for daily use and industry in line with population growth. Uncontrolled use of water will damage the groundwater system. The purpose of this study was to determine the zone of the decrease of water level to obtain information about area that utilizes excess water. The method used is a micro-gravity vertical gradient between times. Gravity measurements were done at 124 points spread evenly between May and October 2013. The results showed that there was a decrease in ground water level in the Industries area Kaligawe, Tanah Mas, and Tlogosori which was identified with the vertical gradient anomaly of micro gravity between the times from May to October 2013. The regions which have high negative changes in ground water level (1.2-1.4 m / year) were the monitoring wells Madukoro 2, LIK Kaligawe and PT Aquaria which are the industrial areas. Exploitation of ground water in industrial areas is relatively high compared to the other regions.Perkembangan kota Semarang yang menuntut ketersediaan air untuk keperluan sehari-hari dan industri seiring dengan pertambahan jumlah penduduk. Pemanfaatan air yang tidak terkendali akan menyebabkan sistem  air tanah rusak. Tujuan penelitian ini adalah menentukan zona penurunan muka air tanah untuk memperoleh informasi daerah yang memanfaatkan air secara berlebihan. Metode yang digunakan adalah gradien vertikal gaya berat mikro antar waktu. Pengukuran gaya berat di lakukan di 124 titik yang tersebar merata pada periode Mei dan Oktober 2013. Hasil peneltian menunjukkan telah terjadi penurunan muka air tanah di lingkungan Industri Kecil Kaligawe, perumahan Tanah Mas, Perumahan Tlogosori yang ditandai dengan anomali gradien vertikal gaya berat mikro antar waktu Mei-Oktober 2013. Wilayah yang memiliki perubahan muka air tanah negative tinggi (1,2-1,4 m/tahun), berada di sekitar sumur pantau Madukoro 2, LIK Kaligawe dan PT Aquaria dimana tutupan lahan di sekitar sumur pantau tersebut merupakan kawasan industri. Eksploitasi air tanah pada kawasan industri relatif tinggi jika dibandingkan dengan kawasan lainnya. 
Pengaruh Upah Minimum Kabupaten/Kota (UMK) dan Pembangunan Manusia Berbasis Maqashid Syariah terhadap Jumlah Kemiskinan di Kabupaten Grobogan Jawa Tengah Safitri, Ria; Baihaqi, Jadzil; Supriyadi, S.
IQTISHODUNA IQTISHODUNA (VOL.16, No.1, 2020)
Publisher : Fakultas Ekonomi, UIN Maliki Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.846 KB) | DOI: 10.18860/iq.v16i1.7498

Abstract

This study aims to determine the effect of City Minimum Wage and human development based on maqashid shari'a on the amount of poverty in Grobogan, Central Java. This study uses a quantitative approach with secondary data types obtained from the Central Statistics Agency (BPS) and the Office of the Ministry of Religion Grobogan Regency. This research method uses multiple regression analysis techniques with time-series data from 2011 to 2017. Data analysis in this study uses Eviews 7 software. The results showed that the city minimum wage had a negative effect on the amount of poverty in Grobogan Regency. Whereas human development based on maqashid shari'a has a negative and not significant effect on the amount of poverty in Grobogan Regency. Human development based on maqashid shari'a has a negative and insignificant effect due to poverty measurement used by the Central Statistics Agency (BPS) using the concept of ability to meet basic needs (basic need approach). With this approach, poverty is seen as an inability from the economic side to meet the basic needs of food and non-food which are measured in terms of expenditure and income, so that other components cannot be directly linked to poverty.
Exploring Technology-Driven Simulations in Practical Physics: Insights into Mechanical Measurements Concept Kade, Amiruddin; Supriyatman, S.; Kamaruddin, Abdul; Novia, N.; Supriyadi, S.; Husain, Sadang
ASEAN Journal of Science and Engineering Vol 4, No 3 (2024): (ONLINE FIRST) AJSE: December 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v4i3.74411

Abstract

This study aimed to explore the effectiveness of technology-driven simulations in improving high school students' practical skills in mechanical measurement within the context of physics education. A quasi-experimental design was employed, involving control groups and pretest-posttest samples to assess students' understanding and application of mechanical measurement concepts. The results indicate that simulations significantly enhance students' accuracy and comprehension of mechanical measurements compared to traditional teaching methods. Notably, visual and kinesthetic learners benefit the most from using simulations prior to engaging in physical experiments. The combination of simulations and hands-on experiments was found to be more effective in developing practical skills than either approach alone. These findings underscore the value of integrating technology-driven simulations into physics curricula, particularly for enhancing learning outcomes and practical skills in mechanical measurement, with a specific advantage for learners with visual and kinesthetic preferences.
Identification of The Geothermal Heat at Mount Iyang-Argopuro Based on a Data Image of Landsat 8 Satellite and a Data Gravity of GGMPlus Satellite Bahtiar, Ega Abi; Suprianto, Agus; Supriyadi, S.
Computational And Experimental Research In Materials And Renewable Energy Vol 4 No 1 (2021): May
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v4i1.24966

Abstract

In Indonesia is the Iyang-Argopuro Volcano Complex. The Research uses remote sensing methods and gravity methods conducted to study thermal anomalies and subsurface structures using Data images of Landsat 8 satellite and a data gravity of GGMPlus satellite. Moreover, the study aims to estimate the number of hoisting manifestations of the earth's heat at the compound of the Iyang-Argopuro volcano. Landsat 8 satellite image data is a spectral band (band 1-9) and a thermal band (band 10 and 11). The data was done in radiometric corrections, radiance correction, and reflex corrections, and was thus obtained a value of ground surface temperature (LST). The data was done in radiometric corrections, radiance correction, and reflectance corrections, to get an LST value. Processing data gravity of GGMPlus satellites with a bouguer correction, terrain corrections up to get a Complete Bouguer Anomaly (ABL) value. Furthermore, the ABL value consisting of regional and local anomalies is separated using an upward continuation filter to obtain local anomaly values. The results obtained from this study are five points of geothermal manifestation locations in the Iyang-Argopuro Volcano Complex which are located in the northern, central, southern and eastern parts. Manifestations in the northern, central, and northeastern parts have ground surface temperatures of 24-31 ̊C. While manifestations in the central and eastern parts have a surface temperature of land 21-31 ̊C. The high ground temperature values at the five locations were associated with low gravity values ranging from -20 mGal to -10 mGal. The low gravity value is assumed to have a rock structure with a low-density value. Low-density rock structures have the possibility of an outflow zone causing the soil surface temperature to be relatively high.
Immunohistochemical analysis of HSP-70 and IL-6 expression in rooster testes treated with Cucurbita moschata seed extract under heat stress condition Rochmi, S. E.; Sofyan, M. S.; Achmad, A. B.; Pertiwi, H.; Residiwati, G.; Ihsan, I. S.; Tuska, H. S. A.; Supriyadi, S.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 4 (2025): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.4.304-311

Abstract

Heat stress is a major environmental factor that disrupts reproductive function in poultry, primarily by triggering oxidative stress and inflammation in testicular tissue. This study evaluated the influence of Cucurbita moschata(pumpkin seed) extract in mitigating the adverse effect of heat stress in roosters testes by regulating key markers, heat shock protein 70 (HSP70) and interleukin-6 (IL-6).Twenty-five adult roosters, aged one year, were divided into five groups: a non-stressed control group, a heat-stressed group without treatment, and three heat-stressed groups treated orally with 1600, 3200, or 6400 mg/kg body weight of the extract for 21 consecutive days. Immunohistochemical analysis revealed that heat stress led to marked increases in HSP-70 and IL-6 expression in the testes, reflecting cellular stress and inflammatory responses. Notably, administration of Cucurbita moschataextract attenuated these responses in a dose-dependent manner, with the 3200 and 6400 mg/kg doses showing the most significant reduction in protein expression. These findings highlight the potential role of Cucurbita moschataas a natural therapeutic agent to protect male reproductive function under heat stress conditions through its antioxidant and anti-inflammatory properties.
Co-Authors A. Pradana, A. Abdul Kamaruddin Achmad, A. B. Agus Dwi Catur Ahmad Zainuri Amiruddin Kade Bahtiar, Ega Abi Husain, Sadang Ihsan, I. S. Jadzil Baihaqi Khumaedi - M. Sarkowi, M. M. Yusuf MARIA BINTANG N. Novia, N. Paryanto Dwi Setiawan, Paryanto Dwi Pertiwi, H. Residiwati, G. Ria Safitri Rochmi, S. E. S. Imam, S. S. Sinarep, S. Setiyani, Eprisa Risky Sofyan, M. S. Supriyatman, Supriyatman Tuska, H. S. A.