城市贫困群体的社会分裂与融合

本文从贫困群体文化的角度分析了我国的城市贫困问题。文章认为 ,由于我国城市贫困人口缺乏就业机会 ,开始出现长期化和相对固定化的趋势 ,具有较强的贫困群体意识 ,他们正逐渐从主流社会中脱离出来 ,表现出了与社会分裂的趋势。因此 ,从有利于城市贫困群体社会融合的角度出发 ,城市反贫困应注重采取的措施是社会救助要体现“以人为本”的宗旨 ,要为城市贫困人口提供更多的就业机会 ,在难以提供更多就业机会的情况下实施“准就业” ,以社区建设促进城市贫困群体的社会融合

Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024

We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^