Judul: Demographic And Employment Characteristics Associated With Underemployment In Java And Non-Java Provinces
Abstrak: Labour force utilization policy in Indonesia mainly focuses on the unemployment rate, which does not adequately measure the whole aspect of labour utilization. The underemployment rate can provide deeper measurement by capturing the condition where the part-time worker would like an additional working hour to increase income. Underemployment rate can capture the condition where the worker are not fully utilized. Indonesia has a problem with underemployment, where there is a gap in the underemployment rate in Java and Non-Java Provinces. The average underemployment rate in provinces which located outside Java are higher than the provinces in Java. This condition might related to the characteristics of the worker. It is required to assess what is the characteristics that define underemployment status. To investigate the characteristics that associated with underemployment status, multinomial probit regression on Indonesian National Labour Force Survey 2021 (SAKERNAS 2021) data was used. There are 3 model in this research, the general national model, worker in Java model and non-Java worker model. The characteristics that being observed are the demographic and employment characteristics. This research finds that young females with a degree who live in rural areas and work in informal and agricultural sectors are more prone to underemployment. There are noticeable differences in the magnitude of associated factors of underemployment between Java and Non-Java workers.
Keyword: demographic, labour utilization, multinomial probit, underemployment

Judul: The analysis of factors affecting employment of industries sector in east java province 2001-2011
Abstrak: Penelitian ini bertujuan untuk menganalisis faktor-faktor yang memengaruhi penyerapan tenaga kerja sektor industri di Provinsi JawaTimur dengan menggunakan data panel 37 kabupaten di Jawa Timur dari tahun 2001-2011. Variabel bebas yang digunakan adalah Produk Domestik Regional Bruto (PDRB) riil sektor industri, Upah minimum Kabupaten (UMK), dan jumlah industri di setiap kabupaten yang dianalisis. Sedangkan variabel terikat adalah jumlah tenaga kerja sektor industri. Metode analisis yang digunakan adalah analisis deskriptif dan analisis regresi berganda data panel dengan Fix Effect Model (FEM). Hasil penelitian ini menunjukkan bahwa UMK dan jumlah industri berpengaruh signifikan terhadap penyerapan tenaga kerja sektor industri di Jawa Timur, sedangkan PDRB riil sektor industri tidak berpengaruh signifikan. UMK berhubungan negatif dengan jumlah tenaga kerja sektor industri, sedangkan jumlah unit industri berhubungan positif., The aim of this reasearch is to anlyze the factors affecting Employment of Industries Sector in East Java Province using panel data from 37 regencies in east java from 2001 to 2011. The independent variable used the real Regional Gross Domectic Product (GDP) of industries sector, minimum wages, and the total of industries in east java. The employment of industries sector were used as dependent variable. The methode used descriptive analysis and regression of panel data using Fixed Effect Model (FEM). The result indicate that minimum wage and the total of industries influence the employment of Industries Sector in East Java Province significantly, while the real regional GDP of industries sector unsignificantly. Minimum wage has negatif relation and the total of industries has positive relation to dependent variable.
Keyword: Fix Effect Model (FEM), PDRB riil, sektor industri, tenaga kerja, UMK

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
Keyword: