从更能体现主营业务经营情况的非美国通用会计准则（Non-GAAP）下的净利润来看，瑞幸第四季度同样在下滑，而且下滑幅度依然很大——同比下滑25.5%至6.99亿元；非GAAP净利润率为5.5%，相较于2024年的9.8%几近腰斩。
0 & x = x_j \quad \forall j \neq i，详情可参考新收录的资料
9月11日——于朦胧坠楼案。关于这个话题，新收录的资料提供了深入分析
Scientists racing to tackle plastic pollution have created a surprising new contender: a biodegradable packaging film made partly from milk protein. Researchers at Flinders University blended calcium caseinate with starch and natural nanoclay to form a thin, durable material designed to mimic everyday plastic. In soil tests, the film fully broke down in about 13 weeks, pointing to a realistic alternative for single-use food packaging.
FLASH Therapy Moves to Animal TestsWhile CERN’s CLEAR accelerator has been instrumental in characterizing FLASH parameters, researchers seeking to study FLASH in living organisms must look elsewhere: CERN doesn’t allow animal experiments on-site. That’s one reason why a growing number of scientists are turning to PITZ, the Photo Injector Test Facility in Zeuthen, a leafy lakeside suburb of Berlin.