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All Journal Jurnal Ilmu Pertanian Indonesia ACTA VETERINARIA INDONESIANA Hemera Zoa ARSHI Veterinary Letters Jurnal Kedokteran Hewan LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI Scientific Contributions Oil and Gas
Setyo Widodo
PPPTMGB LEMIGAS, Balitbang KESDM, Jl. Ciledug Raya, Kav. 109, Cipulir, Kebayoran Lama, Jakarta, 12230, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary

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Symmetry dimethylarginine (SDMA) assay for diagnosis of kidney disease in dogs and cats: a mini review of case reports in Indonesia Dewi, Fitriya Nur Annisa; Widhyari, Sus Derthi; Mihardi, Arief Purwo; Widodo, Setyo; Esfandiari, Anita
ARSHI Veterinary Letters Vol. 8 No. 2 (2024): ARSHI Veterinary Letters - May 2024
Publisher : School of Veterinary Medicine and Biomedical Sciences, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/avl.8.2.35-36

Abstract

Symmetry Dimethylarginine (SDMA) is an important biomarker for early diagnosis of kidney disease. Studies suggest that SDMA is a more sensitive indicator of kidney function compared to traditional markers such as blood urea nitrogen (BUN) and creatinine. Since 2015, the International Renal Interest Society (IRIS) has established SDMA as one of the indicators for diagnosis and determining the stage of chronic kidney disease (CKD) in dogs and cats. SDMA assay use in veterinary clinics in Indonesia has empirically become more common. The aim of this study was to identify scientific reports on SDMA assay use in the diagnosis of kidney disease in dogs and cats in Indonesia. We performed a literature search in the Garuda portal and Google Scholar using the following keywords: “SDMA” or “Symmetry Dimethylarginine”, “dogs”, “cats” and “Indonesia”. The search strategy utilized English and Bahasa Indonesia, and the results were screened for relevance to the topic, and limited to studies conducted in Indonesia. Seven scientific articles in national and international journals reported the use of SDMA assay in cases of kidney disease in dogs or cats in Indonesia, published between 2021-2023. It is expected that SDMA assay use will continue to increase in veterinary practice settings in the country, and it is therefore critical to have a proper understanding of the advantages and limitations of SDMA use for kidney disease diagnosis.
DEVELOPMENT OF WRIGHT BLENDING METHOD IN VISCOSITY ESTIMATION OF LIQUID-BINARY MIXTURE OF BASE OIL AND OLEFIN COPOLYMERS (OCPs) Nelson Saksono; Subiyanto Subiyanto; Setyo Widodo
Scientific Contributions Oil and Gas Vol 34 No 1 (2011)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.34.1.642

Abstract

This study aims to develop mathematical equations used in Wright’s method to predictkinematic viscosity of liquid-binary mixture consisting of base oil and additive. The equationis developed by addition of specific constants (αi and αc), representing interaction ofeach component in the mixtures. Evaluation is done using 70 empirical data from 35 samplesderived from liquid blending of 4 types of base oils (B.1, B.2, B.3 and B.4) and olefincopolymers (OCPs), varied in the range of 5-30 % of weight. Kinematic viscosity is measuredat 40oC and 100oC using a cannon automatic viscometer series 2000 (CAV 2000)according to ASTM method D 445. Validation of the equation (Developed-Wright’s method)is performed over all of liquid-binary mixtures of base oil-OCPs, and the accuracy isindicated by percent average absolute deviation (%AAD). The results show that the additionof specific constants could minimize the deviations of estimated values. The averagedeviation of Developed-Wright’s method on kinematic viscosity estimation at 40oC and100oC becomes 2.056 % and 1.917% respectively, lower than Wright’s method which are8.341 % and 14.696%; meanwhile the maximum deviation reaches 5.821 % and 4.657%,lower than Wright’s method which are 21.256 % and 25.265% respectively. These valuesindicate that the Developed-Wright’s method has better accuracy.
Study On Components Rating Of Gasoline Engine As A Performance Quality Indicator Of Lemigas Formulated Api Sl Lubricant Setyo Widodo; Shinta Sari H; Catur Yuliani R; Subiyanto Subiyanto
Scientific Contributions Oil and Gas Vol 33 No 3 (2010)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.33.3.825

Abstract

Poor lubrication may cause wear on the surface moving parts of engine components such as bearings due to the metal-to-metal contact. Engine components utilized on the road-test of gasoline engine’s lubricating oil API SL showed wear and tear on some parts of them. The sum of wear occurred during the road test were varied. Therefore, an analysis of wear quantity of engine’s components was a necessity in order to get information about lubrication condition on engine. Analysis of wear was conducted by components’ rating based on the standard specifications set out for performance level of lubricant oil API SL and ILSAC GF-3 (SNI 06-7069-2005). Analysis based on Seq. IIIF showed that average value of the piston skirt varnish is 10, low temperature viscosity is 4673 cP, and cam wear lifter is 0.002 mm. It was also showed that the minimum kinematics viscosity increase was managed to be stay-in-grade. Analysis based on Seq. IVA showed that the average value of cam wear is 0.0015 mm. Analysis based on Seq. VII showed that the value of bearing weight loss was 0.010 g and there was no deposit at high temperatures. Shear stability analysis based on Seq. VIII showed that the viscosity of lubricant oil is still in the range of allowed values.
Co-Authors Agatha W. Sanjaya Agus Lelana Agus Wijaya Agus Wijaya Anita Esfandiari Catur Yuliani R Chusnul Choliq Deny Setyo Wibowo Deskiharto, Arman Dewi, Fitriya Nur Annisa Dondin Sajuthi Effendi, Siti Aisyah Rahmalia Eko Sugeng Pribadi Erni H Purwaningsih Eva Harlina Heinrich Enbergs I Gusti Ngurah Sudisma I Ketut Sutama I W.T. Wibawan I wayan Teguh Wibawan IETJE WIENTARSIH Intan Maria Paramita Kadri, Febrina Suci Dwi Kartjito, Nicolas Edward Christanto Leni Maylina M Hanifuddin M. Hanifuddin Madyastuti, Rini Milda Fibre MIRNAWATI SUDARWANTO Muhammad Hanifuddin Nelson Saksono Retno Wulansari Rizal Rahadian Ramdhany Rona Malam K Rona Malam Karina Sherli Noviaria Pakpahan Sherly Noviaria Pakpahan Shinta Sari H Solinda, Gamelita Rizkawandi Subiyanto Subiyanto Sus Derthi Widhyai Sus Derthi Widhyari TATI NURHAYATI Wijayanti, Revi Esti