Leftover or improperly discarded drugs are easy prey for diversion and are fueling the opioid abuse epidemic. ISMP offers safe practice recommendations to prevent drug misuse.
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A 51-Year-Old Man With Dyspnea and a Pulmonary Nodule.
Chest
January 2025
State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
A 51-year-old man presented with chest tightness, exertional dyspnea, and occasional chest pain for 2 years. The patient visited his local hospital initially, and CT scan revealed a ground glass opacity (GGO) located in the right upper lobe (Fig 1A). He was diagnosed as having pulmonary infection and treated with levofloxacin for 12 days.
View Article and Find Full Text PDF[Healing of Critical-Size Bone Defects with Tricalcium Phosphate Hydrogel: Evaluation of Hydrogel as a Scaffold for Stem Cells and BMP-2].
Acta Chir Orthop Traumatol Cech
January 2025
Ortopedická klinika, Fakultní nemocnice Hradec Králové.
Purpose Of The Study: The preclinical study aimed to compare the healing of segmental bone defects treated with biodegradable hyaluronic acid and tricalcium phosphate-based hydrogel with the established autologous spongioplasty. Another aim was to evaluate the hydrogel as a scaffold for osteoinductive growth factor of bone morphogenetic protein-2 (BMP-2) and stem cells.
Material And Methods: The study was conducted in an in vivo animal model.
Enhancing Mid-Term Strength and Microstructure of Fly Ash-Cement Paste Backfill with Silica Fume for Continuous Mining and Backfilling Operations.
Materials (Basel)
December 2024
Energy School, Xi'an University of Science and Technology, Xi'an 710054, China.
Fly ash-cement composite backfill slurry, prepared by partially replacing cement with fly ash, has been demonstrated to effectively reduce the mine backfill costs and carbon emissions associated with cement production. However, the use of fly ash often results in insufficient early and medium-term strength of the backfill material. To address the demand for high medium-term strength in backfill materials under continuous mining and backfilling conditions, this study developed a silica fume-fly ash-cement composite backfill slurry.
View Article and Find Full Text PDFLeaching of pollutant metals (Pb, Zn) from abandoned mine tailings: A multicomponent reactive transport model of a pilot-scale experiment.
Sci Total Environ
January 2025
Univ. Orléans, CNRS, BRGM, ISTO, UMR 7327, F-45071, Orléans, France. Electronic address:
Mine tailing deposits pose a global problem, as they may contain metal contaminants in various geochemical forms and are likely to be leached from the surface into the underlying groundwater, which can result in health and/or environmental risks. Unfortunately, little is currently known regarding the water flow and mass balance related to leaching in the vadose zone as these factors are still difficult to measure at the field scale. A pilot-scale experiment was run in a 1 m instrumented column for 6 months to address this issue.
View Article and Find Full Text PDFExperiment and numerical analysis of prestressed unequal-walled rectangular concrete-filled steel box beams.
Sci Rep
January 2025
School of Naval Architecture Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
When long-span beams undergo large, the strength of the beam material cannot be fully utilized. To solve this problem, a prestressed unequal-walled rectangular concrete-filled steel box (PURCFSB) beam is proposed in this paper. The prestressing is added to the concrete-filled steel tubular (CFST) beam and the section is designed.
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