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Pratiwi Ratih Halimatus Sya'diah
Akademi Analis Kesehatan Manggala Yogyakarta
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics

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Pengaruh Kecepatan dan Waktu Sentrifugasi terhadap Nilai Hematokrit Mahasiswa AAK Manggala Yogyakarta Jeniwati Tamo Inya; Pratiwi Ratih Halimatus Sya'diah; Ardina Nugrahani
Jurnal Syntax Admiration Vol. 5 No. 11 (2024): Jurnal Syntax Admiration
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v5i11.1779

Abstract

A hematocrit test is an examination that aims to diagnose a disease related to the number of red blood cells (erythrocytes). In the laboratory, there are often errors in hematocrit examinations, namely with the inaccuracy of the centrifuge time, with the large number of patients it is one of the obstacles for laboratory staff in conducting examinations, so that the centrifuge is turned off faster and sometimes also late. The purpose of this study is to determine the effect of centrifugation speed and time on hematocrit levels of students in the fourth semester of AAK Manggala Yogyakarta in 2023. This research method is descriptive analytical. The sample of this study is 39 samples. This study uses the microhematocrit method at 15,000 rpm, 12,000 rpm, 10,000 rpm, 7,000 rpm for 5 and 10 minutes with data analysis using the Kruskal Wallis test. The results showed that the average hematocrit value in men was 40% and women was 40%. The results of the statistical test show the significance value 15,000 rpm for 5 and 10 minutes is p=0.631 (p>0.05), 12,000 rpm during 5 and 10 minutes is p= 0.255 (p>0.05), 10,000 rpm for 5 and 10 minutes is p= 0.496 (p>0.05) at 7,000 rpm for 5 and 10 minutes is p=0.316 (p>0.05). The conclusion of this study is that there is no effect of speed and time of snetrifugation on hematocrit values. (p> 0.05).
Evaluation of Microplastic Content in Human Circulatory System and Its Potential Impacts on Systemic Health Kun Mardiwati Rahayu; Mila Sari; Pratiwi Ratih Halimatus Sya'diah
Science Journal Get Press Vol 3 No 1 (2026): January, 2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i1.357

Abstract

Given the escalating global production of plastics and the absence of regulatory frameworks addressing internal human exposure, microplastic contamination has emerged as an urgent environmental and public health policy concern.Using micro Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy, MPs were detected in 76.0% of samples collected from 50 healthy adults, with an average concentration of 3.15 ± 1.25 particles/mL and a mean particle size of 5.8 ± 2.1 μm. Polyethylene terephthalate (PET) and polypropylene (PP) were the dominant polymer types, while fragments and fibers represented the most common morphologies. Correlation analyses revealed significant positive associations between total MP concentration and inflammatory biomarkers C-reactive protein (r = +0.415, p = 0.003) and interleukin-6 (r = +0.288, p = 0.043) as well as oxidative stress marker malondialdehyde (r = +0.350, p = 0.013), suggesting that MPs may contribute to subclinical systemic inflammation and oxidative imbalance. These findings provide empirical evidence supporting the systemic circulation of MPs and their potential role as low-grade biological stressors that could influence vascular homeostasis. Further longitudinal and mechanistic studies are warranted to elucidate causal pathways, characterize nanoplastic fractions, and establish standardized analytical protocols. This research underscores the growing necessity to treat microplastic exposure as a critical environmental and public health issue.
Co-Authors Ardina Nugrahani Jeniwati Tamo Inya Kun Mardiwati Rahayu Mila Sari