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Prostate puzzle: Unconventional prostatic STUMP findings in a middle-aged patient prompt closer examination.
Radiol Case Rep
February 2025
Department of Radiooncology, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Iran.
A 41-year-old male presented with obstructive urinary symptoms and an enlarged prostate. Subsequent testing revealed a remarkably high PSA level of 150 ng/mL, considerably above normal limits, raising concern for possible malignancy. Transrectal ultrasound showed an enlarged heterogeneous prostate measuring 74×80×75mm.
View Article and Find Full Text PDFExperiment and Simulation Study on the Adsorption Interaction between a Fluorescent Tracer and a Montmorillonite Crystal in Drilling Fluid.
Langmuir
November 2024
School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
Article Synopsis
- * Experimental results indicate that RhB adsorbs better in terms of capacity, while Fln shows stronger spontaneity and a faster interaction rate, suggesting different adsorption dynamics for each tracer.
- * The interaction mechanisms revealed that Fln's orientation aligns it closer to metal elements in MMT, while RhB interacts with surface oxygen atoms, highlighting the significance of forces like hydrogen bonds and electrostatic interactions in tracer behavior, essential for effective reservoir monitoring in the petroleum industry.
Elevated airborne radioactivity downwind of a Colorado oil refinery.
J Air Waste Manag Assoc
December 2024
Subra Company, New Iberia, Louisiana, USA.
Airborne radioactivity from fossil fuel production systems is poorly characterized, but a recent study showed elevated ambient levels with proximity to oil and gas production wells. Here, we report year-long, high temporal resolution monitoring results of airborne alpha radioactivity from both radon gas and radon progeny attached to particulates immediately northeast of an oil refinery in Commerce City, Colorado, USA, in an environmental justice community of concern. Gas and particle-associated radioactivity contributed nearly evenly to the total alpha radioactivity.
View Article and Find Full Text PDFLate Holocene echinoderm assemblages can serve as paleoenvironmental tracers in an Antarctic fjord.
Sci Rep
July 2024
Department of Earth Sciences, University of Pisa, Via Santa Maria 53, 56126, Pisa, Italy.
High Latitude fjords can serve as sediment trap, bearing different type of proxies, from geochemical to micropaleontological ones, making them exceptional tools for paleoenvironmental reconstruction. However, some unconventional proxies can be present and can be used to depict a comprehensive and exhaustive interpretation of past changes. Here, studying a sediment core in Edisto Inlet (Ross Sea, Antarctica) we used irregular echinoid spines and ophiuroids (Ophionotus victoriae) ossicles to trace environmental changes throughout the last 3.
View Article and Find Full Text PDFCharacterizing carbonaceous aerosols in residential coal combustion: Insights from thermal/spectral carbon analyzer coupled with photoionization mass spectrometry analysis.
Sci Total Environ
July 2024
State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science & Engineering, Nankai University, Tianjin 300350, China; CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research, Tianjin 300350, China.
This study aims to identify unique signatures from residential coal combustion in China across various combustion conditions and coal types. Using a Thermal/Spectral Carbon Analyzer with a Photoionization Time-of-Flight Mass Spectrometer (TSCA-PI-TOF-MS), we focus on the optical properties and organic mass spectra of the emissions. Bituminous coal emerged as the primary emitter of total carbon, releasing 729 μg C/mg PM under smoldering and 894 μg C/mg PM under flaming.
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