Results 101 to 110 of about 29,309 (260)

Design, Implementation, and Evaluation of Proficiency Testing in EMC Burst Immunity

IEEE Access
For the accreditation according ISO/IEC 17025, the participation in the interlaboratory comparisons and proficiency testing is required as long as there exist suitable reference devices and providers.
Emrah Tas
doaj   +1 more source

Phytoplankton pigment in situ measurements uncertainty evaluation: an HPLC interlaboratory comparison with a European-scale dataset [PDF]

, 2023
Elisabetta Canuti
openalex   +1 more source

Choice of fixative affects programmed death‐ligand 1 expression in cell blocks from pleural effusions with metastatic pulmonary adenocarcinoma

Cancer Cytopathology, Volume 134, Issue 3, March 2026.
Abstract Background Programmed death‐ligand 1 (PD‐L1) immunocytochemical (ICC) analysis of cell blocks (CBs) has recently emerged in clinical practice. Unlike standardized immunohistochemistry on formalin‐fixed, paraffin‐embedded tissues, cytology involves various preparation methods and fixatives.
Mohammed S. I. Mansour, Louise Pettersson, Rita Pedersen, Ulrich Mager, Kim Hejny, Frida Kronqvist, Anna Aronsson, Tomas Seidal, Levent M. Akyürek, Ivana Kholová   +9 more
wiley   +1 more source

U.S. Geological Survey External Quality-Assurance Project Report for the National Atmospheric Deposition Program / National Trends Network and Mercury Deposition Network, 2011-12 [PDF]

, 2014
The U.S. Geological Survey operated six distinct programs to provide external quality-assurance monitoring for the National Atmospheric Deposition Program (NADP) / National Trends Network (NTN) and Mercury Deposition Network (MDN) during 2011–2012.
Martin, RoseAnn, Wetherbee, Gregory A.
core  

Flow Cytometry Role in Unlocking New Frontiers for Nanomedicine Applications of Plant‐Derived Vesicles

Journal of Extracellular Biology, Volume 5, Issue 3, March 2026.
ABSTRACT Extracellular vesicles (EVs) are nanoscale membrane‐bound vesicles released by any cell type under both physiological and pathological conditions. They carry a wide array of bioactive molecules, including microRNAs (miRNAs), lipids, proteins and other small biomolecules, and therefore play a key role in intercellular communication by ...
Tamer Esmail, Sabino Porro, Francesca D'Ascanio, Domenico De Bellis, Arianna Aquilini‐Mummolo, Giulia Colasante, Pasquale Simeone, Ayesha Younas, Marwa Balaha, Mariagiulia Filoso, Luana D'Onofrio, Melania Dovizio, Eleonora Aruffo, Piero Di Carlo, Lorenzo Secondi, Federica Flamminii, Tiziana Pietrangelo, Chiara Porro, Patrizia Ballerini, Angelo Cichelli, Paola Lanuti   +20 more
wiley   +1 more source

The use of certified reference materials for laboratories proficiency testing

Стандартные образцы, 2017
The notion of proficiency testing, interlaboratory comparison, proficiency testing scheme is given. The main types ofproficiency testing schemes that meet international standards is describes.
S. V. Shpakov
doaj  

Interlaboratory comparison measurements of aspheres

Measurement Science and Technology, 2018
The need for high-quality aspheres is rapidly growing, necessitating increased accuracy in their measurement. A reliable uncertainty assessment of asphere form measurement techniques is difficult due to their complexity. In order to explore the accuracy of current asphere form measurement techniques, an interlaboratory comparison was carried out in ...
R Schachtschneider, I Fortmeier, M Stavridis, J Asfour, G Berger, R B Bergmann, A Beutler, T Blümel, H Klawitter, K Kubo, J Liebl, F Löffler, R Meeß, C Pruss, D Ramm, M Sandner, G Schneider, M Wendel, I Widdershoven, M Schulz, C Elster   +20 more
openaire   +2 more sources

The Grey Zone Project: Risk‐Based Classification of ABCD1 Variants in X‐Linked Adrenoleukodystrophy

Journal of Inherited Metabolic Disease, Volume 49, Issue 2, March 2026.
ABSTRACT Newborn screening (NBS) for X‐linked adrenoleukodystrophy (ALD) enables early identification of boys at risk for adrenal insufficiency (AI) and cerebral ALD (CALD). However, NBS frequently identifies ABCD1 variants of uncertain significance (VUS), which are associated with only borderline‐elevated C26:0‐lysophosphatidylcholine (LPC(26:0 ...
Troy C. Lund, Kelly Miettunen, Yorrick R. J. Jaspers, Caroline Bergner, Joshua L. Bonkowsky, Fabio Bruschi, Julie S. Cohen, Inge M. E. Dijkstra, Florian S. Eichler, Eric J. Mallack, Gajja S. Salomons, Robert Thompson, Davide Tonduti, Keith P. van Haren, Mirjam M. C. Wamelink, Ayelet Zerem, Marc Engelen, Stephan Kemp   +17 more
wiley   +1 more source

Natural History of Clinical Phenotypes and Their Biochemical Correlates in Adult X‐Linked Adrenoleukodystrophy

Journal of Inherited Metabolic Disease, Volume 49, Issue 2, March 2026.
ABSTRACT X‐linked adrenoleukodystrophy (X‐ALD) is a rare monogenic disorder characterized by marked variability in clinical presentation, age at onset, and disease progression. A deeper understanding of its natural history and the relationship between biochemical markers and clinical phenotypes is essential for improving disease monitoring, patient ...
Julia Lier, Markus Ponleitner, Denny Popp, Lisa Schäfer, Franziska Küstermann, Christof Meigen, Frank Kratzer, Joachim Janda, Jürgen Okun, Rami Abou Jamra, Wolfgang Köhler, Caroline Bergner   +11 more
wiley   +1 more source

Inter-Laboratory Comparison of Metabolite Measurements for Metabolomics Data Integration

Metabolites, 2019
Background: One of the current problems in the field of metabolomics is the difficulty in integrating data collected using different equipment at different facilities, because many metabolomic methods have been developed independently and are unique to ...
Yoshihiro Izumi, Fumio Matsuda, Akiyoshi Hirayama, Kazutaka Ikeda, Yoshihiro Kita, Kanta Horie, Daisuke Saigusa, Kosuke Saito, Yuji Sawada, Hiroki Nakanishi, Nobuyuki Okahashi, Masatomo Takahashi, Motonao Nakao, Kosuke Hata, Yutaro Hoshi, Motohiko Morihara, Kazuhiro Tanabe, Takeshi Bamba, Yoshiya Oda   +18 more
doaj   +1 more source