Judul: Measuring manufacturing firms efficiency: Evidence from East Java province, Indonesia
Abstrak: Examining the technical efficiency of the manufacturing industry in Indonesia is important to develop this sector and enhance Indonesia’s economy. To measure the technical efficiency, a true fixed effect stochastic frontier model with heteroscedasticity in the idiosyncratic error and technical inefficiency component is implemented. Using the firm-level data of Large and Medium Industries (LMIs) in East Java province, Indonesia from 2017-2019, it is found that the overall technical efficiency is 0.79 with a minimum value of 0.24 and a maximum value of 0.99, indicating the potency to increase technical efficiency. Moreover, it is found that the transportation equipment industry is the most improved sector in terms of technical efficiency while the pharmaceutical and drug industry shows the highest declining trend in technical efficiency. The furniture product manufacture, garment industry, chemical product manufacture, and computer, electronic and optical product industry also experience considerably downward trend of technical efficiency.
Keyword: heterosedasticity, industry, stochastic frontier, technical efficiency

Judul: Technical inefficiency, technological stagnation, and total factor productivity in medium and large-scaled manufacturing industiy: a stochastic production frontier approach
Abstrak: Penelitian ini bertujuan untuk mempelajari kemampuan produksi, kemajuan teknologi, efisiensi teknis dan sumber-sumber pertumbuhan usaha menegah dan usaha besar dengan menggunakan konsep stochastic production jUnction. Secara khusus tujuan penelitian ini: (I) menganalisis keragaan industri manufaktur Indonesia yang mencakup aspek produksi, elastisitas input dan skala usaha, (2) menganalisis perubahan teknologi dan dampaknya terhadap penggunaan faktor produksi, (3) menganalisis tingkat inefisiensi teknis dan faktor-faktor penyebab inefisiensi teknis, dan (4) menganalisls pertumbuhan total factor produktivitas industri manufuktur usaha menengah dan usaha besar. Model pendugaan fungsi produksi menggunakan translog stochastic production frontier dengan menggunakan faktor produksi tenaga keIja, kapital, bahan baku dan teknologi yang diproksi dengan variabel waktu. Penghitungan elatisitas output terhadap faktor produksi, skala usaha, perubahan teknologi, inefisiensi teknis dan pertumbuhan total faktor produktivitas mengikuti model inefisiensi dalam kondisi time varying inefisiensi teknis dengan menggunakan pool data (cross section 6 sektor industri dan time series tahun 1997-2002. Model diestimasi dengan metode maximum likelihood estimation dengan pendugaan Technical Efficiency Effect Model(TE-Effect Model).
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Judul: Studi Kasus Diagnosis Pencitraan Gangguan Saluran Pencernaan Atas Anjing Schnauze
Abstrak: The aim of this study was to learn the role of diagnostic imaging to define the diagnose of the upper gastrointestinal tract disorder of the Schnauzer. The information from the owner (anamneses) stated that the dog has been vomiting for a year, sometimes containing blood. There might also be a possibility that it had eaten a corpus alineum. This study case covered physical examination, hematology and blood chemical analysis, radiography, ultrasonography, and endoscopy performed. Physical examination showed weight loss and anorexia. Hematology and blood chemical analysis showed an increase in lymphocyte, haemoglobin (Hb), haemotocrit (Hct), ureum, creatinine, alanin aminotransferase (ALT), and alkaline phosphatase (ALP). Abdominal radiograph showed no abnormality in the abdominal organs. Abdominal ultrasonography showed a hyperechoic mass on the stomach mucosal surface. The mass forms an acoustic shadowing at the ventral. The acoustic shadowing in the stomach may be caused by an accumulation of gas or foreign object such as bone. Endoscopy showed that there was inconsistency of stomach mucosa surface, foamy bile fluid in the stomach, ulcers, and erosion of the stomach mucosal surface. Based on the endoscopy performed, the animal was clearly diagnosed with chronic gastritis accompanied by stomach ulcer and erosion.
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