Judul: Analysis of Food Price Stability For Livestock Commodities Before and During The Covid-19 Pandemic (Year Period 2019-2020)
Abstrak: Pandemi Covid-19 telah memyebabkan harga pangan sangat berfluktuasi. Fluktuasi harga yang tinggi dapat menyebabkan ketidakpsatian konsumsi pangan masyarakat dan dapat memengaruhi kualitas sumberdaya manusia pada jangka panjang. Penelitian ini bertujuan untuk menganalisis fluktuasi dan pengaruh regulasi pangan komoditas hasil peternakan sebelum dan saat pandemic Covid-19 . Fluktuasi harga pangan dianalisis dengan menggunakan Coefficient of Variation, sedangkan konvergensi dan pengaruh regulasi dianalisis dengan metode data panel dinamis dan statis. Hasil penelitian menunjukkan bahwa harga daging ayam sangat berfluktuasi dibandingkan dengan telur ayam dan daging sapi baik sebelum dan saat pandemi Covid-19. Harga daging ayam dan telur ayam akan mengalami proses konvergensi dengan kecepatan yang lambat. Pemberlakuan regulasi harga acuan terbaru akan menyebabkan harga telur ayam akan naik dan semakin berfluktuasi, namun fluktuasi harga daging ayam akan menurun. Berdasarkan hasil penelitian perlu pengkajian ulang terkait regulasi harga acuan selama pandemi Covid-19., The Covid-19 pandemic has caused food price to fluctuate greatly. High price fluctuation could effect uncertainty of public food consumption and could affect the quality of human resources in the future. This study aims to analyze the fluctuations and impact of food regulation on livestock commodities before and during the Covid-19 pandemic. The analysis method used to measure food price fluctuation is the coefficient of variation, while convergence and the impact of regulatory used dynamic and static panel data. The result showed that food price fluctuation for chicken is higher than beef and eggs both before and during the Covid-19 pandemic. The price of chicken and eggs will be converge at a slow pace. The implementation of the latest price regulation will cause the price of eggs to rise and more fluctuate, but the price of chicken will decrease. Based on the research results, there is still required to do re-assessment of reference price during the Covid-19 Pandemic
Keyword: dynamic panel data, harga acuan, konvergensi, protein hewani

Judul: The Effect of Chicken Meat Prices, Covid-19, and  Other Determinants on the Spillover Effect of Inflation at the Regional Level in Indonesia
Abstrak: Pandemi Covid-19 berdampak pada pergerakan permintaan dan penawaran komoditas pangan strategis, salah satunya adalah daging ayam ras yang memiliki fluktuasi harga dan memberikan andil terhadap inflasi sebagai salah satu tolak ukur kondisi perekonomian. Pergerakan inflasi perlu diawasi serta dikendalikan dengan mempertimbangkan faktor moneter dan non moneter. Penelitian ini menganalisis perkembangan inflasi, harga daging ayam ras, upah minimum provinsi, suku bunga kredit konsumsi, dan kredit UMKM tingkat regional di Indonesia. Selain itu, penelitian ini menganalisis pengaruh determinan inflasi regional serta interaksi spasial yang berdampak pada spillover inflasi regional dengan mempertimbangkan dummy Covid-19. Penelitian ini menggunakan data bulanan dari 34 provinsi di Indonesia selama 2018-2021 dan dianalisis menggunakan metode panel spasial. Hasil penelitian menunjukkan harga daging ayam ras dan upah minimum provinsi memiliki pengaruh positif signifikan terhadap inflasi suatu provinsi serta provinsi terdekat. Sebaliknya, suku bunga kredit konsumsi, kredit UMKM, dan dummy Covid-19 memiliki pengaruh negatif signifikan terhadap inflasi suatu provinsi dan provinsi terdekat., The Covid-19 pandemic impacted the demand and supply of a strategic food commodity, such as chicken meat with fluctuating prices, thus affecting the inflation rate, which is one of the benchmarks for economic conditions. Inflation needs to be monitored and controlled by considering monetary and non-monetary factors. This study analyzes the development of inflation, chicken meat prices, provincial minimum wages, interest rates for consumption loans, and MSME loans. This study also analyzes the impact of regional inflation determinants and spatial interactions that impact the spillover of regional inflation bu considering the Covid-19 dummy. This study uses monthly data from 34 provinces in Indonesia for 2018-2021 and analyzes using the spatial panel method. The results showed that the price of chicken meat prices and the provincial minimum wage have a significant positive effect on inflation in a province and the nearest province. In contrast, interest rates for consumption loans, MSME loans, and the Covid-19 dummy have a significant negative effect on in a province and the nearest province.
Keyword: Covid-19, Harga, Inflasi, Panel Spasial, Price, Inflation, Spatial Panel

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4