We have developed a quantitative filtration apparatus to evaluate erythrocyte deformability, using a precision metal filter which we developed. The test material is sucked into the filter through the action of decreasing negative pressure. The device automatically gives a liquid level (height)-time relation and a pressure-flow rate relation, similar to gravity-based filtration. Unlike the gravity-based system, the experimental performance of this system is very good and reproducible.
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http://dx.doi.org/10.2170/jjphysiol.53.481 | DOI Listing |
Aim: To study the associations between risk factors, clinical characteristics, severity of brachiocephalic artery (BCA) atherosclerosis and severity of coronary artery (CA) disease in patients with acute coronary syndrome (ACS).
Material And Methods: The study included patients with any type of ACS and obstructive coronary artery disease confirmed by coronary angiography. A quantitative analysis of coronary angiography data was performed with an assessment of the number of CAs with significant stenosis and calculation of the SYNTAX score.
Pediatr Nephrol
January 2025
University of Castilla La Mancha, Albacete, Spain.
Background: Serum creatinine and estimated glomerular filtration rate (GFR) are key indicators of kidney function.
Methods: This descriptive, retrospective study included neonatal patients admitted to a tertiary hospital's neonatal intensive care unit from January 2013 to December 2016. Data on kidney function were collected from birth to 7 days of life.
Mar Environ Res
December 2024
School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200030, China.
Diazotrophs have made significant contributions to marine nitrogen cycles. However, their distribution patterns and determined mechanisms have not been fully understood, particularly at the small regional scales. Here, the diazotrophic community structure by different sample sizes (0.
View Article and Find Full Text PDFWater Res
December 2024
State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, PR China.
Membrane separation technology has emerged as a highly energy-efficient method for microalgae enrichment and harvesting in wastewater treatment. However, membrane fouling caused by algal cells and stratified extracellular polymeric substances (EPS) remains a critical barrier to its industrial-scale application. This study meticulously investigates the micro process of algae-derived pollutants stacking to the membrane surface affected by stratified EPS.
View Article and Find Full Text PDFTalanta
December 2024
Interdisciplinary Ecological Sciences & Engineering, Purdue University, West Lafayette, IN, 47907, USA; Department of Environmental & Ecological Engineering, Purdue University, West Lafayette, IN, 47907, USA; Department of Agronomy, Purdue University, West Lafayette, IN, 47907, USA. Electronic address:
Per- and polyfluoroalkyl substances (PFAS) in the environment is a growing concern leading to a focus on PFAS occurrence in biosolids, a byproduct of wastewater treatment processes, often applied to improve soil health. This led to the need for analytical method development for assessing PFAS in biosolids. This study compares three methods for PFAS quantitation, evaluating solvent extraction, clean-up techniques, and final injection solvents.
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