Results 101 to 110 of about 4,055,516 (260)

Evaluation of cold joint effects on the microstructure and mechanical behavior of three‐dimensional printed concrete specimen

Structural Concrete, EarlyView.
Abstract 3D concrete printing (3DCP) is an automated construction technique that uses an extrusion process to fabricate structures efficiently. However, the layer‐by‐layer process can create interlayer weaknesses, and interruptions during printing can result in cold joints, which can negatively affect the structural behavior.
Sung‐Jo Kim, Inken Jette Rasehorn, Dietmar Stephan, Tong‐Seok Han   +3 more
wiley   +1 more source

Interlaboratory Comparison 11/2020. VOC measurements from indoor air samples [PDF]

, 2021
Proftest SYKE carried out the interlaboratory comparison in cooperation with Finnish Institute of Occupational Health (FIOH) for VOC thermodesorption measurements (ISO 16000-6) from native indoor air samples in Tenax TA thermodesorption tubes in ...
Leivuori, Mirja, Ilmakunnas, Markku, Tervonen, Keijo, Koivikko, Riitta, Hovi, Hanna, Lanteri, Sari   +5 more
core  

Microplastics and the Endocrine–Metabolic Interface: Novel Diagnostic Tools Targeting Thyroid–Adipose Axis

Environmental Toxicology, EarlyView.
ABSTRACT Microplastics (MPs) have been identified as major environmental contaminants that can affect organisms directly and act as carriers of particles and chemical additives, thereby aggravating endocrine networks that coordinate metabolic homeostasis.
Sunday Amos Onikanni, Babasola Aiyeku, Marjorie Dardis Murucci, Temitope Aribigbola, Kenia Bispo, Oluwatosin Stella Olayinka, Rômulo Sperduto Dezonne, Sara Gemini Piperni, Paula Soares, Denise Pires de Carvalho, Leandro Miranda‐Alves   +10 more
wiley   +1 more source

Artemia salina Toxicity Assay: Standardization in a 24‐Well Microplate

Environmental Toxicology, EarlyView.
ABSTRACT Bioassays with Artemia sp. are widely used in aquatic, environmental, and human toxicology as an initial tool to investigate the toxicity of plant extracts, isolated compounds, drugs, and products of natural or synthetic origin. These assays allow for the estimation of the median lethal concentration (LC50) and guide subsequent studies in ...
Matheus Pires Miranda, Natalie Petrovna Semanovschi, Roseane Santos de Souza, Angélica Maria Lucchese, Luzimar Gonzaga Fernandez   +4 more
wiley   +1 more source

Multiscale Effects of Environmentally Relevant Mixtures Containing Two Estrogenic Endocrine Disruptors, Chlordecone and Propylparaben, in Hydra vulgaris Pallas, 1766

Environmental Toxicology, EarlyView.
ABSTRACT This study investigates the chronic effects of chlordecone (CLD) and propylparaben (PP), two pro‐estrogenic endocrine disruptors, on Hydra vulgaris Pallas, 1766 using a multiscale approach over a 14‐day exposure period. Environmentally relevant concentrations of CLD (0.5, 5, 20 μg L−1) and PP (0.01, 0.05, 0.40 μg L−1) were tested individually ...
Magali Domallain, Romain Colpaert, Xavier Moreau, Laetitia De Jong, Karim Benbrahim, Raphael Coatmeur, Valérie Pique, Maxime Robin, Pierre‐Henri Villard   +8 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  

Development and Certification of CPP-23: A Multi-Element Certified Reference Material for Cereal Plant Tissue from Semi-Arid Regions

Analytica
Reliable determination of macro- and micronutrients in cereal plant tissues is essential for agronomic management, environmental monitoring, and interlaboratory data comparability.
Aziz Soulaimani, Mohamed El Gharous, Khalil El Mejahed, Mohamed Louay Metougui, Reda Oulfakir, Latifa Hajji, Said Gmouh   +6 more
doaj   +1 more source

From Model to Practice: Testing Near‐Infrared Spectroscopy as a Bone Collagen Prescreening Tool

Archaeometry, EarlyView.
ABSTRACT Collagen is a vital archaeological material, preserving biochemical signatures that provide insights into past environments, diets, and human–animal interactions. However, diagenetic processes can lead to rapid and often inconspicuous degradation of collagen. Given the variability in collagen preservation and its significance for analyses such
Christina Ryder, Gerardo Celis, Thibaut Devièse, Thomas Higham, Katerina Douka, Loren Davis, Matthew Collins, Angela Perri, Heather Thakar, Matt Sponheimer   +9 more
wiley   +1 more source

Interlaboratory Comparison on POPs in Food 2019. The twentieth round of an international study [PDF]

, 2019
The objectives of this interlaboratory comparison study were A. To offer a tool for quality assurance to the participating laboratories B. To assess the between laboratory reproducibility C.
Haug, Line Småstuen, Kvalem, Helen Engelstad, Bremnes, Nanna Margrethe Bruun, Thomsen, Cathrine   +3 more
core   +1 more source

The BIOREMA project - Part 2: International interlaboratory comparison for biodiesel test methods

, 2013
The results of an interlaboratory comparison, using various measurement methods to carry out biodiesel testing, are presented and the findings are discussed. The interlaboratory comparison was organised within the framework of an EU-funded project called
SCHANTZ Michele M., LANG Brian, DARODA Romeu J., ULBERTH-BUCHGRABER Manuela, HELD Andrea, BROWN Richard J. C., POTALIVO Monica, BALDAN Annarita, CUNHA Valnei S, VAN DER VEEN Adriaan, ENT Hugo, BREWER Paul J., HEARN Ruth   +12 more
core   +1 more source