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Determination of 115 Pesticide Residues in Textiles by Liquid Chromatography-Tandem Mass Spectrometry.
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Technology Center of Qingdao Customs, Qingdao, China.
The presence of pesticide residues in textiles poses a risk to human health. We established a robust and high-throughput liquid chromatography-tandem mass spectrometry method for the determination of 115 pesticide residues in textiles. In this study, we evaluated high-performance liquid chromatography-tandem mass spectrometry conditions and sample extraction methods, including separation performance of different columns, mass conditions, extraction solvent, and extraction time.
View Article and Find Full Text PDFOvercoming the thermal limits of photon counting CT resolution using focal spot multiplexing: A feasibility study.
Med Phys
January 2025
Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Background: The spatial resolution of new, photon counting detector (PCD) CT scanners is limited by the size of the focal spot. Smaller, brighter focal spots would melt the tungsten focal track of a conventional X-ray source.
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Improved erectile function after bariatric surgery: role of testosterone and other factors-a cohort prospective study.
Surg Obes Relat Dis
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2nd Department of General Surgery, Jagiellonian University Medical College, Cracow, Poland.
Background: The prevalence of obesity has risen dramatically worldwide. Beyond its metabolic implications, obesity profoundly impacts sexual health, particularly in males, with erectile dysfunction (ED) emerging as a prevalent and distressing co-morbidity. Studies show that bariatric surgery alleviates ED.
View Article and Find Full Text PDFPrecision of stereophotogrammetry in complete arch implant recordings: A clinical study.
J Prosthet Dent
January 2025
Assistant Professor, Department of Pre-Clinic Dentistry, Faculty of Biomedical and Health Sciences, European University of Madrid, Madrid, Spain. Electronic address:
Statement Of Problem: Stereophotogrammetry has been proposed as an alternative to intraoral scanners for recording the location of multiple dental implants. Most studies evaluating its accuracy have been in vitro, and clinical studies are lacking.
Purpose: The purpose of this clinical study was to evaluate the precision of a stereophotogrammetry system for complete arch prostheses supported by 6 implants.
Galactic cosmic ray environment predictions for the NASA BioSentinel Mission, part 2:Post-mission validation.
Life Sci Space Res (Amst)
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NASA Ames Research Center, Moffett Field, CA 94035, United States.
The BioSentinel CubeSat was deployed on the Artemis-I mission in November 2022 and has been continuously transmitting physical measurements of the space radiation environment since that time. Just before mission launch, we published computational model predictions of the galactic cosmic ray exposure expected inside BioSentinel for multiple locations and configurations. The predictions utilized models for the ambient galactic cosmic ray environment, radiation physics and transport, and BioSentinel geometry.
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