Publications by authors named "Youtao Li"
Article Synopsis
- ICI-DM shows similarities to classic type 1 diabetes, indicating a potential autoimmune process, and is more likely in patients with specific genetic markers and islet autoantibodies.
- While patients with ICI-DM typically respond well to immunotherapy, many may need to stop treatment permanently, raising concerns about the impact on their overall survival and the need for further research on management strategies.
Article Synopsis
- - The study presents a gas measurement technique using angle-dependent Fabry-Perot (F-P) correlated spectroscopy, specifically targeting methane (CH) by aligning F-P interference peaks with CH absorption peaks for accurate measurements.
- - An angle-scanning measurement system was created, showing distinct absorption signals at critical angles, which allowed for a linear relationship between absorbance and CH concentration, achieving a low detection limit of 720 ppm.
- - The research includes simulations to analyze the effects of beam angles on transmittance and demonstrates the method's robustness against cross-interference, suggesting potential applications for high-sensitivity gas sensors and imaging.
Article Synopsis
- Hefei, a major city in the Yangtze River Delta, is facing changing air pollution sources due to rapid economic growth and urban expansion, but recent research on these changes is limited.
- The study used the Mobile-DOAS instrument for roadside observations from June 2021 to May 2022, finding that air pollutant levels varied seasonally and were linked to traffic patterns and local heating practices.
- Significant improvements were seen with road policy changes, leading to a 95.4% increase in vehicle speed and a 54.4% drop in NO concentration, while emissions data revealed pronounced seasonal and spatial trends that can inform future pollution control strategies.
Article Synopsis
- The study explored how paeonol affects DNA repair, triggers cell death (apoptosis), and reduces cell survival in non-small cell lung cancer cells (H1299) using the MAPK pathway.
- Human bronchial epithelial cells (BEAS-2B) and H1299 cells were treated with varying concentrations of paeonol, and different assays were conducted to assess cell viability, apoptosis, and DNA damage.
- Results showed that higher doses of paeonol decreased cell viability and colony formation while increasing apoptosis and DNA damage, affecting key proteins involved in cell survival and the MAPK signaling pathway.
High-concentration ozone pollution pose threats to ecosystems and human health. However, there is limited research on the impact of the alternating evolution of synoptic weather patterns (SWPs) on the multi-scale transport processes and sources of ozone. From June 14 to 18, 2018, a rare consecutive ozone pollution plagued in Hefei and broader Yangtze River Delta region (YRD).
View Article and Find Full Text PDFThis paper investigates a method for measuring SO concentration using Fabry-Perot interferometer correlation spectroscopy. In this method, the experimental system is designed as a separated beam, with the beam entering the F-P cavity at two incidence angles simultaneously to match the peak and valley positions of the SO absorption cross-section. The system achieves a 2σ detection limit of 28.
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