The National Institute of Standards and Technology administers quality assurance programs devoted to improving measurements of nutrients and related metabolites in foods, dietary supplements, and serum and plasma samples. These programs have been developed in collaboration with the National Institutes of Health to assist measurement communities in their efforts to achieve accurate results that are comparable among different laboratories and over time. Targeted analytes include micronutrients, botanical markers, nutritional elements, contaminants, fatty acids, and vitamin D metabolites.
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Background: The World Health Organization (WHO) recommended cryptococcal antigen (CrAg) screening for people presenting with advanced HIV disease (AHD) and for those with positive CrAg without evidence of meningitis to initiate preemptive antifungal medication. Data on the implementation of WHO recommendations regarding CrAg screening is limited. We estimated pooled prevalence of CrAg screening uptake, cryptococcal antigenemia, lumbar puncture, cryptococcal meningitis and initiation of preemptive antifungal medication from available eligible published studies conducted in Africa.
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PLoS One
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Social & Scientific Systems, Inc., a DLH Holdings Company / United States Agency for International Development Strategic Information Technical Support Activity, Kampala, Uganda.
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View Article and Find Full Text PDF[Coronary Angiography in Clinical Practice: Update on Indications, Complications, and Contraindications].
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Departamento de Cardiología, Instituto Nacional del Tórax, Santiago, Chile.
Unlabelled: Coronary angiography (CA) is the gold standard for identifying the presence and extent of atherosclerotic coronary artery disease or dynamic stenosis of the arteries.
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Water Quality Characteristics and Seasonal Changes in Wastewater Treatment in the Southern Hebei Region by Branch.
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Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China.
This study analyzed three years of data (2021-2024) from three wastewater treatment plants (WWTPs), namely D, X, and T, in the main urban area of Handan, a typical city in the southern Hebei region, and investigated the influent characteristics and impact of temperature on these wastewater treatment facilities. With 90% assurance, the overall influent conditions of the three WWTPs in this region were normal. However, Plant T operated more effectively with slightly lower BOD/COD (B/C), organic carbon/total phosphorus (C/TP), and organic carbon/total nitrogen (C/TN) ratios in the influent.
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Food Processing Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.
An on-site, sensitive, and cost-effective method for determining aflatoxin B1 (AFB1) in rice samples is proposed, combining magnetic solid phase extraction (MSPE) and time-resolved fluorescence immunochromatography (TRFICA) techniques. Cost-effective rice husks were carbonized and combined with nanomaterials to make magnetic nanocomposites that acted as effective adsorbents in MSPE. Under optimal conditions, the entire process was completed in 15 min with a visual detection limit of 0.
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