Results 41 to 50 of about 646,696 (338)

The Development of a Standardized Quality Assessment Material to Support Xpert^® HIV-1 Viral Load Testing for ART Monitoring in South Africa

Diagnostics, 2021
The tiered laboratory framework for human immunodeficiency virus (HIV) viral load monitoring accommodates a range of HIV viral load testing platforms, with quality assessment critical to ensure quality patient testing.
Lara Dominique Noble, Lesley Erica Scott, Asiashu Bongwe, Pedro Da Silva, Wendy Susan Stevens   +4 more
doaj   +1 more source

Layout-aware Webpage Quality Assessment [PDF]

arXiv, 2023
Identifying high-quality webpages is fundamental for real-world search engines, which can fulfil users' information need with the less cognitive burden. Early studies of \emph{webpage quality assessment} usually design hand-crafted features that may only work on particular categories of webpages (e.g., shopping websites, medical websites).
arxiv  

Effect of different noise reduction techniques and template matching parameters on markerless tumor tracking using dual‐energy imaging

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To evaluate the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking (MTT) using dual‐energy (DE) imaging. Methods A Varian TrueBeam linear accelerator was used to acquire a series of alternating 60 and 120 kVp images (over a 180° arc) using fast kV switching, on ...
Mandeep Kaur, Peter Wagstaff, Hassan Mostafavi, Mathias Lehmann, Daniel Morf, Liangjia Zhu, Hyejoo Kang, Michal Walczak, Matthew M. Harkenrider, John C. Roeske   +9 more
wiley   +1 more source

Managing Deviating EQA Results: A Survey to Assess the Corrective and Preventive Actions of Medical Laboratories Testing for Oncological Biomarkers

Diagnostics, 2020
Laboratories testing predictive biomarkers in lung and colorectal cancer are advised to participate in external quality assessment (EQA) schemes. This study aimed to investigate which corrective actions were taken by laboratories if predetermined ...
Cleo Keppens, Ed Schuuring, Elisabeth MC Dequeker   +2 more
doaj   +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

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Evaluation of an EPID in vivo monitoring system using local and external independent audit measurements

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The aim of this work was to evaluate the SunCHECK PerFRACTION, the software for in vivo monitoring using EPID images. Materials/Methods First, the PerFRACTION ability to detect errors was investigated simulating two situations: (1) variation of LINAC output and (2) variation of the phantom thickness.
Samuel Ramalho Avelino, Juliana Rosada Dias, Taís Marques Peron, Gabriel Souza Vidal   +3 more
wiley   +1 more source

CURRENT STATE OF TRAINING PROGRAM EVALUATION ACCORDING TO VIETNAMESE STANDARDS - SOLUTIONS TO ENSURE TRAINING PROGRAM QUALITY

Tạp chí Khoa học
The evaluation of training programs is usually conducted in at least two stages: self-assessment and external assessment, based on domestic and international standards.
Ta Van Thanh, Nguyen Minh Phuong, Tran Thi Van Oanh
doaj   +1 more source

Refining the NaV1.7 pharmacophore of a class of venom‐derived peptide inhibitors via a combination of in silico screening and rational engineering

FEBS Letters, EarlyView.
Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma, Jennifer R. Deuis, Xinying Jia, Theo Crawford, Sassan Rahnama, Eivind A. B. Undheim, Irina Vetter, Yanni K. ‐Y. Chin, Mehdi Mobli   +8 more
wiley   +1 more source

Analysis on the difference of circulating threshold of polymerase chain reaction in blood screening of external quality assessment

Zhongguo shuxue zazhi, 2022
Objective To analyze the difference of circulating threshold (Ct) of polymerase chain reaction (PCR) in blood station laboratories during the external quality assessment, and to put forward suggestions for the quality improvement of participating ...
Lidong LIU, Xiaofei WU, Yao JIA, Yuwen HUANG, Qin MO, Hong LIU, Rongna Ma, Zhong XU, Xun WANG   +8 more
doaj   +1 more source