Judul: Kesenjangan Produktivitas Pertanian dan Konvergensi di Asia: Analisis Spasial
Abstrak: The agricultural productivity gap worldwide has long been an unresolved issue and has attracted the attention of many scholars to explore the possibilities of agricultural productivity convergence. This study aims to examine the dynamics of the agricultural productivity gap in 17 Asian countries from 1999 to 2019 and investigate its conditional convergence. By using the Theil coefficient concentration index, it is evident that the majority of the agricultural productivity gap stems from the differences between group income class classification rather than within the group, with a decreasing trend towards the end of the period. Meanwhile, by incorporating Geographically Weighted Panel Regression (GWPR) to obtain both global and local models, the results indicate support for the hypothesis of conditional convergence for all countries yet with a very slow pace. Agricultural mechanization is seen to drive agricultural productivity growth, with a more significant effect on lower-income countries while crises have been proven to adversely impact the majority of lower income countries. Export of agricultural product contribute to the agricultural productivity growth only in Indonesia, Malaysia, Philippines, Cambodia, and Vietnam, while there is no evidence of the role of increasing human development index and agricultural producer price to the growth., Kesenjangan produktivitas pertanian secara global telah lama menjadi masalah yang belum terselesaikan dan menarik perhatian banyak akademisi untuk memprediksi kemungkinan terjadinya konvergensi produktivitas. Penelitian ini bertujuan untuk mengkaji dinamika kesenjangan produktivitas pertanian di 17 negara Asia dari tahun 1999 hingga 2019 dan menyelidiki konvergensi kondisionalnya. Dengan menggunakan indeks konsentrasi koefisien Theil, terlihat jelas bahwa sebagian besar kesenjangan produktivitas pertanian berasal dari perbedaan antar kelompok kelas pendapatan daripada perbedaan negara dalam satu kelompok pendapatan yang sama. Sementara itu, dengan memasukkan Geographically Weighted Panel Regression (GWPR) untuk mendapatkan model global dan lokal, hasil penelitian menunjukkan dukungan terhadap hipotesis konvergensi kondisional untuk semua negara, namun dengan kecepatan yang sangat lambat. Mekanisasi pertanian terlihat mendorong pertumbuhan produktivitas pertanian, dengan pengaruh yang lebih signifikan terhadap negara-negara berpenghasilan rendah, sementara krisis terbukti berdampak buruk bagi sebagian besar negara berpenghasilan rendah. Ekspor produk pertanian berkontribusi terhadap pertumbuhan produktivitas pertanian hanya di Indonesia, Malaysia, Filipina, Kamboja, dan Vietnam, sementara tidak ada bukti peran peningkatan indeks pembangunan manusia dan harga produsen pertanian terhadap pertumbuhan.
Keyword: agricultural productivity gap, convergence, Geographically Weighted Panel Regression (GWPR), spatial analysis, theil index

Judul: Analisis Konvergensi Produktivitas Tenaga Kerja AntarProvinsi di Indonesia
Abstrak: Each province wants to make the process of sustainable development with their regions autonomy. For 13 years running regional autonomy, there is still disparity in Indonesian. This has resulted in a variety of ways, especially labor productivity. During the analysis period, the average of labor productivity highest at Jakarta amounted to 87,16 million rupiah per person and the lowest at NTT amounted to 5,72 million rupiah per person. The purpose of this study is to map the provinces in Indonesia seen from the growth rate of labor productivity and labor productivity value, analyze the degree of disparity in labor productivity, and to analyze process of labor productivity among provinces in Indonesia shows a convergent or divergent process. The research uses dynamic panel data of 33 provinces from 2005 to 2012. Results from the mapping showed that the change of position of the province in 2005 and 2012. Based on analysis of regional disparity found that the labor productivity gap between provinces in Indonesia fluctuating from year to year and tends to decrease. Based on data processing using the SYSGMM obtained that the process of convergence in labor productivity occurred in Indonesia.
Keyword: Dynamic Panel Data, Labor Productivity, Convergence

Judul: Photosensor producing based on ferroelectric material of Ba0,5Sr0,5TiO3 doped by Ferrium Oxide (Fe2O3) on a P-Type Silicon Substate Si (100) applied as a digital camera with a single pixel image sensor
Abstrak: Thin film Ba0,5Sr0,5TiO3 (BST) doped with Fe2O3 was grown on p-type silicon substrate (100) using chemical solution deposition (CSD). It used the solvent 2-methoxyethanol with annealing temperature of 850°C and the doping treatment Fe2O3 of 2.5, 5, 7.5, 10 % of the mass formed BST. Pure BST had the highest absorption of 600 nm of light wavelength. Additions Fe2O3 moves highest absorption in the range of 560 nm. Fe2O3 addition was strengthening thin film sensitivity to the effects of light. In general, doping Fe2O3 10% was result the best absorbance and current-voltage of BST thin film. Electrical properties of thin films BST include dielectric, photoconductivity, and dissipation energy. Based on the current-voltage (I-V) analysis, pure BST and doped BST showed photodiode properties. Dielectric values obtained in the range from 23.32 to 243. Based on electrical conductivity data and energy dissipation, BST thin films have shown photodiode characteristics and are therefore suitable as light sensors. The image sensor in a digital camera is also a light sensor. This BST thin film has been scientifically proven to be a light sensor and also it can be applied as an image sensor. This is a novelty image sensor based on thin film Ba0.5Sr0.5TiO3.
Keyword: barium strontium titanate, thin film, photodiode, image sensor, digital camera