Judul: The Impact of Working Capital Turnover and Macroeconomic Factors on The Profitability of Agribusiness Companies on The Indonesian Stock Exchange
Abstrak: Modal kerja merupakan bagian dari pembiayaan. Terjadinya pandemi Covid 19 di tahun 2020 memberikan disrupsi pada perusahaan sektor agribisnis yang sudah go public. Namun, perusahaan tetap dituntut oleh investor untuk selalu berusaha untuk memperoleh keuntungan. Profitabilitas selain ditentukan oleh pengelolaan perputaran modal kerja juga ditentukan oleh kondisi eksternal terutama faktor mekroekonomi, serta juga jenis sektor dari sektor perusahaan agribisnis. Oleh karena itu, tujuan dari penelitian ini adalah menganalisis pengaruh perputaran modal kerja dan variabel makroekonomi terhadap profitabilitas sebelum dan saat pandemi pada perusahaan agribisnis on-farm dan manufaktur. Data yang digunakan adalah data laporan keuangan perusahaan yang sudah tercatat di Bursa Efek Indonesia. Metode analisis yang digunakan yaitu analisis regresi data panel dari tahun 2017 kuartal satu sampai dengan 2021 kuartal empat. Hasil estimasi menunjukkan bahwa profitabilitas perusahaan agribisnis sektor on-farm dipengaruhi signifikan oleh perputaran persediaan, suku bunga, dan adanya pandemi. Profitabilitas perusahaan agribisnis sektor manufaktur dipengaruhi signifikan oleh perputaran piutang dan persediaan., Working capital is part of financing. The Covid-19 pandemic in 2020 disrupted agribusiness sector companies that had gone public. However, investors still require companies to strive to make a profit. Apart from being determined by the management of working capital turnover, profitability is also determined by external conditions, especially macroeconomic factors, as well as the type of sector of the agribusiness company. Therefore, this research aims to analyze the influence of working capital turnover and macroeconomic variables on profitability before and during the pandemic in on-farm agribusiness and manufacturing companies. The data used in this research are companies financial report listed on the Indonesia Stock Exchange. The analysis method used is panel data regression analysis from 2017 quarter one to 2021 quarter four. The estimation results show that inventory turnover, interest rates, and the presence of a pandemic significantly influence the profitability of on-farm sector of agribusiness companies. Receivables and inventory turnover significantly influence the profitability of manufacturing sector of agribusiness companies.
Keyword: disrupsi, manufaktur, modal kerja, on-farm, profitabilitas

Judul: Working Capital Policy and Its Effect on the Profitability and Liquidity of Various Industry Sector Companies on the IDX
Abstrak: The Covid-19 pandemic caused the Indonesian economy in the second and third quarters of 2020 to be negative at 5.32% and 3.49%. The miscellaneous industrial sector experienced the largest negative growth contraction in the first to third quarters of 2020 compared to other manufacturing sectors. Efficient working capital management can have a significant impact on business profitability and liquidity. The determination of an efficient working capital policy is faced with a trade off between liquidity and profitability factors. Large amounts of working capital have implications for good level of liquidity but reduce opportunities to earn a large profit resulting in reduced profitability and vice versa. This study aims to analyze the effect of working capital policies on the profitability and liquidity of various industrial companies in 2017-2020. The sampling method uses judgment sampling. This study uses Microsoft Excel and multiple linear regression analysis using Eviews 9. Aggressive investing policy and aggressive financing policy positively affects profitability. The effect of aggressive investing policy on liquidity is negative and significant. Meanwhile, an aggressive financing policy will positively affect liquidity., Pandemi Covid-19 menyebabkan perekonomian Indonesia triwulan II dan III tahun 2020 berada pada angka negatif 5,32% dan 3,49%. Sektor Aneka Industri mengalami kontraksi pertumbuhan negatif terbesar pada triwulan I sampai dengan III tahun 2020 dibandingkan dengan sektor manufaktur lainnya. Pengelolaan modal kerja yang efisien dapat berdampak signifikan terhadap profitabilitas dan likuiditas bisnis. Keefisienan pemilihan kebijakan modal kerja dihadapkan pada masalah adanya (trade off) antara 2 faktor yaitu likuiditas dan profitabilitas. Modal kerja dengan jumlah besar berimplikasi pada tingkatan likuiditas yang baik tetapi mengurangi peluang memeroleh laba yang besar yang berakibat pada tingkat profitabilitas yang menurun begitu pula sebaliknya. Penelitian ini bertujuan untuk menganalisis pengaruh kebijakan modal kerja terhadap profitabilitas dan likuiditas perusahaan Aneka Industri tahun 2017-2020. Pengambilan sampel menggunakan metode judgement sampling. Penelitian ini menggunakan Microsoft Excel dan analisis regresi linear berganda menggunakan Eviews 9. Aggressive investing policy dan aggressive financing policy positif mempengaruhi profitabilitas. Pengaruh aggressive investing policy terhadap likuiditas negatif dan signifikan. Sedangkan aggressive financing policy positif mempengaruhi likuiditas.
Keyword: agrressive investing policy, aggressive financing policy, profitability, liquidity

Judul: Separation of Neodymium from U3Si2/Al Fuel Plate for Burn-Up Determination
Abstrak: Neodymium is a common fission product produced in nuclear fission reactions. Neodymium in this study was chosen as a burn-up indicator for U3Si2/Al fuel element plates because the neodymium isotope is a stable fission product with a fairly high yield. Some procedures were carried out to separate neodymium, starting with the separation of cesium isotopes (137Cs, 134Cs) through the precipitation method, then separation of uranium isotopes (235U, 238U) and plutonium isotopes (239Pu, 238Pu) with Dowex 1x8 ion exchange resin, and separation of neodymium (Nd), samarium (Sm), as well as cerium (Ce) with Dowex 1x4 ion exchange resin. The Cs recovery reached 99.95%. The U and Pu isotopes resulting from the separation are subjected to an electrodeposition process and the weight of each isotope can be measured with an alpha spectrometer. The separation results of Nd from Sm and Ce have been proven using an XRF spectrometer. The neodymium isotopes separation was corrected using the standard addition method, and an average total Nd content of 2.4 ppm was obtained in the PEB U3Si2/Al bottom solution. It is hoped that this separation method can be applied in determining burn-up of nuclear fuel.
Keyword: neodymium, burn-up indicator, U3Si2/Al fuel plate