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超声子宫动脉及子宫内膜血流参数对不明原因复发性流产患者妊娠结局的影响

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中华医学超声杂志（电子版） 2023年第11期20卷 1158-1163页

作者：何雪威谷美玉吴亭亭杭州市中医院(浙江中医药大学附属杭州市中医院)超声医学科 310017

目的探讨超声子宫动脉及子宫内膜血流参数对不明原因复发性流产(URSA)患者妊娠结局的影响。方法回顾性收集杭州市中医院(浙江中医药大学附属杭州市中医院)2020年1月至2021年12月收治的112例URSA患者作为研究对象,根据妊娠结局的不同分... 详细信息

目的探讨超声子宫动脉及子宫内膜血流参数对不明原因复发性流产(URSA)患者妊娠结局的影响。方法回顾性收集杭州市中医院(浙江中医药大学附属杭州市中医院)2020年1月至2021年12月收治的112例URSA患者作为研究对象,根据妊娠结局的不同分为已孕组(n=55)与未孕组(n=57),采集备孕期子宫内膜容受性指标(超声子宫动脉、子宫内膜形态和血流参数),并采用χ2检验或Fisher精确概率法或独立样本t检验比较2组间差异,采用多因素条件Logistic回归分析超声参数与妊娠结局的关系。结果已孕组的子宫动脉搏动指数(PI)水平低于未孕组[(2.06±0.42)vs(2.41±0.69)],差异具有统计学意义(t=4.669,P<0.001)。已孕组子宫内膜厚度高于未孕组组[(8.56±1.42)mm vs(8.19±2.41)mm],已孕组的子宫内膜回声B型、内膜血流Ⅱ级和内膜连续者占比高于未孕组(67.27%vs 47.37%、74.55%vs 50.88%和90.91%vs 0),差异均具有统计学意义(χ2=12.151、7.408、93.607,P均<0.001)。多因素条件Logistic回归分析显示,子宫动脉PI升高是URSA患者妊娠的高危因素(β=-0.922,OR=0.924,P=0.004),内膜厚度(β=0.514,OR=1.147,P=0.007)、内膜回声B型(β=0.425,OR=1.502,P=0.001)、内膜血流Ⅱ级(β=0.337,OR=1.655,P=0.002)和内膜连续(β=0.437,OR=2.715,P=0.022)是URSA患者妊娠成功的保护性因素。结论彩色多普勒超声检测子宫动脉血流参数、子宫内膜形态和血流参数可较为准确地评估URSA患者的子宫内膜容受性。

关键词：不明原因复发性流产子宫内膜超声子宫动脉妊娠结局

For Richer, For Poorer

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China Weekly 2024年第5期 32-34页

作者： Xie xuewei 不详

Disputes surrounding bride prices are hard to eradicate as long as high marriage payment remains a trend in many places despite a new top court ruling,say experts.

关键词： marriage trend prices

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Old For New?

China Weekly 2024年第6期 36-39页

作者： Xie xuewei 不详

Amid the ongoing challenges in China's property market,local governments are adopting trade-in policies that aim to incentivize new home purchases by acquiring buyerspreowned homes.

关键词： owned property market

The Impact of Global Value Chain Embedment on Energy Conservation and Emissions Reduction:Theory and Empirical Evidence

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China Finance and Economic Review 2024年第2期13卷 46-66页

作者： Junhong Bai xuewei Yu School of Business Nanjing Normal University School of Economics and Management Southeast University

An in-depth investigation into the effect of embedment in global value chain(GVC)on energy conservation and emissions reduction is of great significance for scientifically assessing the environmental impact of GVC participation,and promoting high-quality development in *** paper incorporates GVC embedment,energy consumption and carbon emissions into the same analysis framework for the first *** on the WIOD database,this paper theoretically and empirically examines the impact and mechanism of global value chain embeddedness on carbon emission reduction from two dimensions:energy consumption intensity and energy consumption *** study found that GVC embedment significantly reduced the industry’s carbon emission intensity;developing economies’embedment in GVC helped reduce their carbon emission intensity,while the effect was not obvious in developed *** embedment had a significant inhibitory effect on the carbon emissions in both upstream and downstream industries,but not conducive to carbon reduction of lowtech *** mechanism test shows that the GVC embedment not only exhibits the dual effects of energy conservation and emissions reduction,but also has a significant impact on carbon emissions by reducing the energy consumption intensity and improving the energy consumption structure.

关键词： global value chain energy conservation and emissions reduction multidimensional fixed effects model

Acceptor-planarized typeⅠphotosensitizer for lipid droplet-targeted two-photon photodynamic therapy by ferroptosis

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Science China Chemistry 2024年第7期67卷 2392-2402页

作者： Jie Sha Weimin Liu Jiasheng Wu Yanping Wang xuewei Li Haohui Ren Zhi Pang Wenjun Zhang Chun-Sing Lee Pengfei Wang Key Laboratory of Photochemical Conversion and Optoelectronic Materials CityU-CAS Joint Laboratory of Functional Materials and DevicesTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Center of Super-Diamond and Advanced Films&Department of Materials Science and Engineering City University of Hong KongHong KongChina

Two-photon photodynamic therapy(TP-PDT)has garnered significant attention because of its excellent depth of tissue penetration and high spatiotemporal ***,the limited targeting ability and oxygen dependency of photosensitizers(PSs)significantly hinder the effectiveness of photodynamic therapy in hypoxic tumor ***,we designed and synthesized two lipid droplet(LD)-targeted two-photon PSs(TBPCP and TBCP)by reducing benzene rings to achieve“acceptor planarization”.Notably,acceptor planarization not only enhanced the intramolecular charge transfer but also transferred the photochemical reaction from typeⅡ(TBPCP)to typeⅠ(TBCP).Under the irradiation of 940 nm femtosecond pulsed laser,TBPCP and TBCP showed bright two-photon-excited fluorescence and excellent LD targeting in living *** TBPCP(typeⅡPS),the outstanding TP-PDT efficacy of TBCP(typeⅠPS)under hypoxic conditions could be obtained in both cellular experiments and multicellular tumor spheroids(MCTS)***,both TBPCP and TBCP could induce the lipid peroxidation in the typeⅠor typeⅡPDT due to the location of LD,depleting GSH and inactivating GPX4 to induce nonprogrammed ferroptosis in cells.

关键词： two-photon photodynamic therapy lipid droplet targeting acceptor planarization hypoxia tumor ferroptosis

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Growing Pains

China Weekly 2024年第3期 14-17页

作者： Xie xuewei Xie Ying 不详

China's major staple producers are lagging in economic growth,especially compared to areas that rely on them to support their local *** subsidies from the central government fall short of flling these regional gaps,ca... 详细信息

关键词： policy producer compensation

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煤矿矿井水资源化绿色短流程关键技术与装备

煤炭学报 2024年第2期49卷 958-966页

作者：何绪文王绍州张学伟季晓晴中国矿业大学(北京)化学与环境工程学院北京100083

煤炭是我国重要的工业原料,与我国经济发展关系密切。煤炭开采过程中会产生大量矿井水,是重要的非常规水资源,需妥善处理。然而现有矿井水处理技术普遍存在占地大、流程长、需加药、运行维护复杂和出水水质不稳定等问题,为缩短处理流程... 详细信息

煤炭是我国重要的工业原料,与我国经济发展关系密切。煤炭开采过程中会产生大量矿井水,是重要的非常规水资源,需妥善处理。然而现有矿井水处理技术普遍存在占地大、流程长、需加药、运行维护复杂和出水水质不稳定等问题,为缩短处理流程、提高处理效率和保证出水水质,亟需研发新的关键技术与装备。采用聚瓷膜直滤技术处理矿井水,通过对膜通量、膜比通量、运行压力和循环流量等条件的对比分析,确定最佳运行参数为:运行压力0.2 MPa,循环流量18 m3/h,处理过程无需加药,出水悬浮物质量浓度稳定<1 mg/L,浊度稳定<1 NTU。采用广泛应用的膜堵塞模型来探讨膜污染机制,膜污染分析结果表明,膜污堵主要以滤饼层污堵为主,并伴随中间污堵,具体表现为膜的表面污染和膜孔的堵塞。通过水力反洗及时清除膜表面污染,最佳反洗时间为60 s,通量恢复率为85.12%;通过定时化学清洗清除膜孔污堵,用复配制剂清洗3 h,通量恢复率可达95%以上。工程案例表明,聚瓷膜直滤可直接取代“混凝沉淀-过滤-超滤”(一代三),且已连续稳定运行2 a,满足设计产水量要求,系统回收率均在90%以上,处理后水质达到GB 3838—2002地表水环境质量III类24种标准限值要求,且自动化程度高,可无人值守,实现了矿井水资源化利用绿色短流程、节能高效和智能化新要求,可为该技术大规模推广应用提供技术参考。

关键词：煤矿矿井水聚瓷膜直滤膜污染资源化

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Class Action

China Weekly 2024年第5期 35-37页

作者： Xie xuewei Xie Ying 不详

As more schools inundate their already overworked teachers with extra duties to curry favor with local officials,educators and lawmakers are rallying to reduce their workload and return their focusto core education.

关键词： law return officials

Metabolic mechanism of dietary factors and effect of dietary types associated with hyperuricemia: A review

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Food Science and Human Wellness 2024年

作者： Kaina Qiao xuewei Zhou Lili Zhang Wangang Zhang Baoguo Sun Yuyu Zhang College of Food Science and Technology Nanjing Agricultural University Key Laboratory of Geriatric Nutrition and health (Beijing Technology and Business University) Ministry of Education Key Laboratory of Flavor Science of China General Chamber of Commerce Beijing Technology and Business University Food Laboratory of Zhongyuan Beijing Technology and Business University

Globally， hyperuricemia is a growing health， social， and economic problem which could cause gout， chronic kidney diseases and other diseases. There are increasing evidences that a sensible diet makes sense to reduce the risk of hyperuricemia. This review aims to explore the metabolic mechanism of dietary factors and effects of dietary types associated with hyperuricemia. Recommendations for dietary modification to prevent hyperuricemia are as following: decreasing intake of animal organs， seafood， sugar-sweetened， and alcohol beverages is essential; choosing water or unsweetened tea and coffee instead of sweetened beverages is beneficial; and increasing intake of vegetables， reduced-fat dairy products， foods containing fiber， micronutrients and unsaturated fatty acids is helpful. In addition， consumption of fruits and legumes in moderation is advantageous， and low-fructose of fruits and low-purine of non-soy beans are recommended. Moreover， personalized diet needs to be emphasized for hyperuricemic patients accompanied with diverse metabolic diseases.

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