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All Journal Jurnal Online Mahasiswa (JOM) Bidang Kedokteran JTTM: Jurnal Terapan Teknik Mesin
Randa Pratama
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Aerospace Engineering Control & Systems Engineering Engineering Mechanical Engineering Medicine & Pharmacology

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PERBANDINGAN JUMLAH KASUS POSTDURAL PUNCTURE HEADACHE PADA PASIEN PASCA SECTIO CAESAREA DENGAN ANESTESI SPINAL MENGGUNAKAN JARUM TIPE QUINCKE 25G DAN 26G DI RSUD ARIFIN ACHMAD Randa Pratama; R. Sutantri EP; Siti Mona Amelia.L
Jurnal Online Mahasiswa (JOM) Bidang Kedokteran Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Kedokteran

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Abstract

Postdural Puncture Headache (PDPH) is an iatrogeniccomplication from spinal anesthesia caused by puncture or laceration fromduramater which leads to leakage of cerebrospinal liquor (LCS). Manyfactors to influence the incidence of PDPH one of which is the size ofspinal needle. The purpose of this research to know comparison theincidence of PDPH between Quincke 25G and 26G in patients with postsectio caesarea. In this cohort analytic study, 68 consecutive patients withpost sectio caesarea under spinal anaesthesia accordance to the inclusiveand exlusive criteria were included. Incidence of PDPH in the Quincke25G needle is 4 repondents (11,8%) and the 26G Quincke is 2 respondents(5.9%). With the most common sites of pain on Frontooccipital, andseverity were assessed using the Visual Analogue Scale (VAS). The resultsof this research showed that no significant relationship between the size ofthe spinal needle with the incidence of PDPH in sectio caesarea patient atthe Arifin Achmad Hospital.Keyword : Post Dural Puncture Headache, PDPH, Comparison TheIncidence of PDPH, Quincke 25G, Quincke 26G, Spinalanaesthesia
Transesterification reaction time impacts on oxidation stability and acid number of biodiesel production from waste cooking oil Randa Pratama; Muhammad Idris; Zakir Husin; Zainal Arif; Iskandar Yakoeb; Supriadi
JTTM : Jurnal Terapan Teknik Mesin Vol 5 No 2 (2024): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v5i2.1220

Abstract

The scarcity of fossil fuels, environmental concerns, and the sharp rise in fossil fuel prices have driven scientists to search for alternative fuels. The characteristics of biodiesel have made the quest for high-quality biodiesel production particularly appealing. The use of waste cooking oil is a key component in reducing biodiesel production costs by 60-90%. Researchers have employed various types of transesterification reactions with both homogeneous and heterogeneous catalysts for biodiesel production; in this study, a 0.5% NaOH catalyst is used. The objectives of this study are to produce biodiesel fuel based on waste cooking oil, evaluate the impact of reaction time variation on the oxidation value and acid value of biodiesel produced from waste cooking oil, and statistically test the effects of reaction time on the oxidation value and acid value of biodiesel produced from waste cooking oil using analysis of variance (ANOVA). The optimum yield was obtained at a reaction time of 90 minutes, achieving 97%. The results for acid number and oxidation value for various reaction times complied with ASTM, EN, and SNI standards. Linear regression analysis of ANOVA for the acid number concluded that the P-value t3 is 0.399, which is greater than Alpha = 0.05, indicating that the variation in reaction time does not have a significant effect on the acid number. Linear regression analysis of ANOVA for the oxidation number concluded that the P-value t3 is less than Alpha (0.047 < 0.05), indicating that reaction time has a significant effect on the oxidation number.
Co-Authors Iskandar Yakoeb Muhammad Idris R. Sutantri EP Siti Mona Amelia.L Supriadi Zainal Arif Zakir Husin