Results 31 to 40 of about 2,984 (162)

Experiences from 4 Years of Organization of an External Quality Assessment for Mycobacterium tuberculosis Whole-Genome Sequencing in the European Union/European Economic Area

Microbiology Spectrum, 2023
Here, we report the development and key features of the first external quality assessment (EQA) scheme for Mycobacterium tuberculosis whole-genome sequencing (WGS).
R. M. Anthony, E. Tagliani, V. Nikolayevskyy, R. de Zwaan, A. Mulder, M. Kamst, C. Ködmön, M. J. van der Werf, D. Cirillo, D. van Soolingen   +9 more
doaj   +1 more source

Formation and Evaluation of Complete Blood Count Proficiency Testing Program

Hematology Reports, 2022
Introduction: The haematology external quality assessment (EQA) scheme is the most commonly used service of quality assurance. The provision of complete blood count (CBC) materials must meet the quality requirements at a reasonable cost.
Huy Quang Vu, Oanh Hoang Le, Duan Cong Truong, Dung Ngoc Nguyen, Triet Hy Van, Van Thi Kieu Le, Linh Thi Truc Vang   +6 more
doaj   +1 more source

External quality assessment of malaria microscopy diagnosis among public health facilities in West Amhara Region, Ethiopia

BMC Research Notes, 2017
Objective To evaluate the importance of external quality assessment program on malaria microscopic diagnosis. Results A total of 3148 slides were collected in 4 consecutive external quality assessment rounds and blindly rechecked at Amhara Public Health ...
Hiwot Amare Hailu, Melashu Balew Shiferaw, Leykun Demeke, Mulatu Melese Derebe, Zelalem Dessie Gelaw, Manamnot Agegne Emiru, Mastewal Worku Lake   +6 more
doaj   +1 more source

An update on quality control for the PFA-100/PFA-200

Platelets, 2018
Testing of platelet function comprises a crucial element of hemostasis assessment, particularly for investigations into bleeding and/or bruising. The Platelet Function Analyzer (PFA)-100 is the most utilized primary hemostasis-screening test system ...
Emmanuel J. Favaloro, Roslyn Bonar
doaj   +1 more source

External Quality Assessment as a strategy for Chagas disease surveillance: a study in four municipalities of Pernambuco [PDF]

Revista da Sociedade Brasileira de Medicina Tropical
Background: Triatomines are hematophagous insects that act as vectors of Trypanosoma cruzi, the causative agent of Chagas disease. External Quality Assessment (EQA) is a tool used for monitoring and improving taxonomic identification activities ...
Efraim Naftali Lopes Soares, Dayse da Silva Rocha, Allan Pitta Seabra, João Paulo Sales Oliveira-Correia, Fernando Vinicius Gomes de Moraes, Rafaella Albuquerque e Silva, Cleber Galvão   +6 more
doaj   +2 more sources

Application of Z-score in retrospective analysis of external quality assessment for nucleic acid testing

Zhongguo shuxue zazhi
[Objective] To use the Z-scores as a means of evaluating the results of external quality assessment (EQA), so as to improve the quality control management in laboratories.
WEI Wei, WEI Ying
doaj   +1 more source

Simultaneous Detection of Steroid Esters and Multi‐Class Substances in Dried Blood Spots by LC‐HRMS/MS From a Single Spot for Human Doping Control

Drug Testing and Analysis, EarlyView.
A validated LC‐HRMS/MS method enabled, for the first time, the comprehensive detection of steroid esters and multi‐class menu substances from a single dried blood spot. Following extraction, the resulting extract is split into two aliquots, reducing sample consumption and simplifying the analytical workflow.
Panagiotis Sakellariou, Andreas Thomas, Sebastian Marcel Schröder, Jasmin Thelen, Mario Thevis   +4 more
wiley   +1 more source

Longitudinal Evaluation of AFP and CEA External Proficiency Testing Reveals Need for Method Harmonization

Diagnostics, 2023
The glycoproteins alpha-fetoprotein (AFP) and carcinoembryonic antigen (CEA) have long been approved as biomarkers for diagnosing and monitoring tumors. International Reference Preparations (IRPs) have been around since 1975.
Nathalie Wojtalewicz, Laura Vierbaum, Anne Kaufmann, Ingo Schellenberg, Stefan Holdenrieder   +4 more
doaj   +1 more source

Performance Evaluation of Dry Chemical Colorimetry for Plasma Ammonia Detection on the VITROS 350 Chemistry System

Journal of Clinical Laboratory Analysis, EarlyView.
This study comprehensively validates the analytical performance of the VITROS dry chemical colorimetric assay for plasma ammonia on the VITROS 350 system. The assay shows excellent precision, accuracy, and linearity throughout the analytical range. It is highly resistant to common interferents such as bilirubin, lipids, and vitamin K1.
Jia Liu, Lin Wang, Yue Tang, Peiran Li, Lili Zhao, Wenwen Yuan, Bo Li, Boan Li   +7 more
wiley   +1 more source

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

Journal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah, Gianni Cario, Alessandro Casavola, Marco Lupia, Francesco Tedesco   +4 more
wiley   +1 more source