This study aims to examine the economic potential in the sector and sub-sector of agriculture, forestry and fishery of Jember Regency. In addition, this study also identifies and determines the leading sectors and sub-sectors in Jember Regency to provide an overview of the leading economic activities that can be developed in increasing the economic potential in Jember District. Analyzer used in this research include analysis of Shift-Share, Location Quotient (LQ), and Growth Ratio Model (MRP). From the research result, it can be seen that: (1) shift-share analysis shows Jember Regency economy during 2010-2015 period increased by Rp2,412.3 billion. The improvement of economic performance in Jember Regency can be seen from positive sector of agriculture sector, forestry and fishery; (2) Based on the analysis of Location Quotient (LQ) sector and the leading sub-sector in Jember Regency there is 1 sector and 1 sub-sector having average LQ> 1 or sector and subsector of the (potential) ie agriculture, farming, and plantation sub-sector; (3) Growth Ratio Model (MRP) analysis shows that the dominant sectors of growth and large contribution include estate crop sub-sector, agriculture and hunting services sub sector, forestry and logging sector, and fishery sector; (4) weighted results based on Shift-Share, Location Quotient (LQ) and Growth Ratio (MRP) analysis were obtained by the highest ranking sub-category of the most potential weighted crops sub-sector.

This study aims to identify and determine the leading sectors in Bandung City to illustrate leading economics activities that can be developed in order to boost economics potential in Bandung City. The analysis tools used include Shift-Share, Location Quotient (LQ) and Growth Ratio Model (GRM) analyses. The results of the study show that: (1) shift-share analysis showed that the economy of Bandung City during the period 2010-2017 increased by Rp. 70,697,045.9 million. The increase in economic performance in Bandung City can be seen from 16 (sixteen) sectors of economic activity that are positive; (2) based on the Location Quotient (LQ) analysis, the leading sectors in Bandung City consisting of 13 (thirteen) sectors, i.e. water supply procurement; garbage, waste and recycling management; construction sector; retail and wholesale trade; car and motorcycle repair; transportation and warehousing sector; accommodation and food provision; information and communication sector; financial and insurance services sector; real estate sector; corporate services sector; government administration, defense and social security; education services sector; health services sector and social activities and other service sectors; (3) the analysis of the Growth Ratio Model (GRM) showed that the dominant sectors of growth and large contributions consist of the construction sector, transportation and warehousing sector, accommodation and food provision sector, information and communication sector, corporate services sector, education services sector, health services sector and social activities and other service sectors; (4) weighting results based on Shift-Share, Location Quotient (LQ) analysis, and Growth Ratio Model (GRM) showed that 5 (five) sectors based on the highest potential weighting results are the information and communication sector, retail and wholesale trade sectors , car and motorcycle repair, transportation and warehousing sector, accommodation and food provision sector and other service sectors.

This study aims to identify and determine the leading sectors in Malang City to illustrate leading economic activities that can be developed to boost economic potential in Malang City. The analysis tools used include Shift-Share, Location Quotient (LQ), and Growth Ratio Model (GRM) analysis. The results show that: (1) shift-share analysis showed that the economy of Malang City during the period 2010-2016 increased by Rp. 12,926,565.5 million. The increase in economic performance in Malang City can be seen from 16 (sixteen) sectors of economic activity that are positive; (2) Location Quotient (LQ) analysis showed the leading sectors in Malang City consisting of 7 (seven) sectors, i.e. water procurement, garbage, waste and recycling management, construction, retail and wholesale trade, car and motorcycle repair, financial and insurance services, education services, health services, and social activities and other services sector; (3) Growth Ratio Model (GRM) estimation showed that the dominant sectors of growth and large contributions consist of the retail and wholesale trade car and motorcycle repair, transportation and warehousing, accommodation and food provision, information and communication, financial and insurance services, real estate, education services and health services and social activities sectors; (4) weighting results based on Shift-Share, Location Quotient (LQ) analysis, and Growth Ratio Model (GRM) showed that five sectors based on the highest potential weighting results are the health services and social activities, education services, construction, retail and wholesale trade car and motorcycle repair, and financial and insurance services sector. Keywords: Economic Potential, Shift-Share, Location Quotient (LQ), Growth Ratio Model (GRM)JEL Classification: R58;R11;O41

In many cases, acetic acid is categorized as hazardous to health. A high-performance sensor for detecting acetic acid is urgently required. This study aims to observe the characteristics of quartz crystal microbalance (QCM) coated with polyacrylamide as an acetic acid sensor. For this purpose, we prepared the sensor by firstly coating with 1-dodecanethiol (using self-assembled-monolayers or SAM technique) followed subsequently by glutaraldehyde and polyacrylamide (PAM).As results, the sensors showed less sensitivity to humidity changes, which is one of the basic prerequisites for a stable sensor to an environment. We also obtained that the sensor showed relatively fast response time and high sensitivity to acetic acid vapor of about 96 seconds and 12.9 Hz/(mgL-1), respectively. Further research, however, is still required to improve the sensitivity and specificity by choosing more selective polymers.

Penelitian ini bertujuan untuk mengetahui tingkat kemampuan problem solving mahasiswa prodi D-III Pertambangan jurusan teknik sipil pada materi Mekanika Batuan dengan menggunakan rubrik MAPS. Jenis penelitian ini adalah penelitian kualitatif, yaitu peneliti mengumpulkan data secara langsung pada situasi tempat penelitian melalui observasi pengamatan. Data penelitian diperoleh secara langsung dari informan dengan menggunakan soal pemecahan masalah (problem solving) menggunakan rubrik MAPS. Data penelitian diperoleh secara langsung dari informan dengan menggunakan soal pemecahan masalah menggunakan rubrik MAPS yang kemudian dianalisis dengan menggunakan software IBM Statistic SPSS 20. Instrumen pengumpulan data dalam penelitian ini adalah lembar observasi pengamatan dan data hasil lembar jawaban tes mekanika batuan. Subjek yang terlibat dalam penelitian ini adalah 24 mahasiswa prodi D-III Teknik Pertambangan Jurusan Teknik Sipil. Hasil penelitian menunjukkan bahwa tingkat kemampuan problem solving mahasiswa prodi D-III teknik pertambangan berada pada kategori sedang yang dibuktikan dengan rerata skor yang diperoleh 2,95.