Results 31 to 40 of about 4,450 (175)

External quality assessment scheme for sperm DNA fragmentation: a pilot study in China

Basic and Clinical Andrology, 2023
Background The aim of this article is to establish an external quality assessment (EQA) scheme for sperm Deoxyribonucleic acid (DNA) fragmentation (SDF) detection, and to assess the feasibility of the scheme.
Yan Zheng, Ying-Bi Wu, Ye-Lin Jia, Li-Juan Ying, Ting-Ting Yang, Qing-Yuan Cheng, Jiao Qin, Chen Luo, Lin Yu, Fu-Ping Li   +9 more
doaj   +1 more source

Decentralization of Acid Fast Bacilli (AFB) External Quality Assurance Using Blind Rechecking for Sputum Smear Microscopy in Ethiopia.

PLoS ONE, 2016
IntroductionEthiopia achieved a rapid expansion of TB microscopic centers for acid fast bacilli (AFB). However, external quality assurance (EQA) services were, until recently, limited to few regional and sub-regional laboratories.
Muluken Melese, Degu Jerene, Genetu Alem, Jemal Seid, Feleke Belachew, Yewulsew Kassie, Dereje Habte, Solomon Negash, Gonfa Ayana, Belaineh Girma, Yared K Haile, Nebiyu Hiruy, Pedro G Suarez   +12 more
doaj   +1 more source

Results of the National External Quality Assessment for Toxoplasmosis Serological Testing in China. [PDF]

PLoS ONE, 2015
Toxoplasmosis is typically diagnosed by serologic testing. External quality assessment (EQA) of clinical laboratories could ensure the accuracy and reliability of serological tests.
Kuo Zhang, Lunan Wang, Guigao Lin, Yu Sun, Rui Zhang, Jiehong Xie, Jinming Li   +6 more
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

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

Model of implementing proficiency testing in Vietnam, a developing country

Practical Laboratory Medicine, 2023
Backgrounds and aims: The aim of this study is to provide a good approach for a quantitative EQA scheme assigned value with limited resources. Materials and methods: Twelve lyophilized EQA items were distributed to participants in 2021 from North to ...
Hy Triet Van, Van Thanh Tran, Manh Tuan Ha, Quang Huy Vu   +3 more
doaj   +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

Sulfur‐ and Selenium‐Decorated Coumarins: Synthetic Strategies Involving Cyclization and Late‐Stage Functionalization

The Chemical Record, EarlyView.
Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider, Laura D. de Avila, Mauricio C. D. F. Xavier, Alex F. C. Flores, Liane K. Soares, Gabriel P. da Costa, Angelita M. Barcellos   +6 more
wiley   +1 more source

Structured Macroporous SiC‐LaNiO3 Catalysts for Hydrogen Production via Visible‐Light Glycerol Photoreforming

International Journal of Ceramic Engineering & Science
Robust supports functionalized with active catalytic phases present a promising route to enhance photocatalytic hydrogen production. Progress in hydrogen generation strongly depends on the design of structured catalysts with tailored architectures and ...
Ana Lucia de Souza Niero, Sarah Mozzaquatro Pasini, Sergio Yesid Gómez González, Dachamir Hotza   +3 more
doaj   +1 more source

Improving tumor marker comparability: A case series on harmonizing carbohydrate antigen 19‐9 and carbohydrate antigen 15‐3 measurements across diverse measurement systems

VIEW, EarlyView.
CA19‐9 and CA15‐3 measurements from seven contemporary immunoassay systems were compared using 464 and 499 native serum samples, respectively. Inter‐system correlations were higher for CA15‐3 than for CA19‐9, and only a limited number of systems met biological variation‐derived bias criteria.
Jia Li, Xiaoying Lou, Zongdan Wang, Mengdi Wu, Jing Zhang, Huishuang Gao, Meng Li, Bing Wu, Dongmei Ma, Kuo Zhang, Wei Cui   +10 more
wiley   +1 more source