The Neue Nationalgalerie(1968)is considered an icon of the 20th century and part of the legacy of Mies van der Rohe.Almost 50 years after its construction the building showed some physiological decay;however,it has be...The Neue Nationalgalerie(1968)is considered an icon of the 20th century and part of the legacy of Mies van der Rohe.Almost 50 years after its construction the building showed some physiological decay;however,it has been considered obsolete due to the changing standards of use and comfort of an international art gallery affected also by a growing flux of visitors.The paper investigates the future of such an icon of modern architecture moving from some open issues of the intervention carried out by David Chipperfield started up in 2015 and now in an advanced stage.The refurbishment is pursuing the modernization of the building,but trying to match the historical values with the requirements of climate control and safety.The binomials memories/requirements and authenticity/form are at the base of the investigation.Although the intervention confirms the continuity of original use and it is aimed at keeping the image of the icon,it imposes transformations that belong to very different strategies,sometimes incompatible with the preservation of material meanings and values.The restoration work on modern heritage outlines how new cultural and socio-economic needs confront themselves with respecting/reproducing the appearance of the monument.展开更多
Salinization of agricultural land is becoming increasingly severe worldwide,posing a significant threat to food security.The exogenous application of bioactive substances has been widely used to enhance plant resistan...Salinization of agricultural land is becoming increasingly severe worldwide,posing a significant threat to food security.The exogenous application of bioactive substances has been widely used to enhance plant resistance to salt stress.In this study,we used corn steep liquor(CSL),myo-inositol(MI),and their combination to improve salt tolerance in Chinese cabbage(Brassica rapa L.ssp.pekinensis)under salt stress conditions.All three treatments significantly increased plant biomass and nutrient uptake,and improved soil physicochemical properties,while alleviating oxidative damage and ion toxicity.展开更多
目的:旨在评价2018年之后微创根治性子宫切除术(MIS)与开腹根治性子宫切除术(ORH)治疗宫颈癌的术后疗效,探讨MIS和ORH在治疗宫颈癌中的价值。方法:系统检索PubMed、Embase及Web of Science自2018年之后发表的相关文献,初检获得399篇研...目的:旨在评价2018年之后微创根治性子宫切除术(MIS)与开腹根治性子宫切除术(ORH)治疗宫颈癌的术后疗效,探讨MIS和ORH在治疗宫颈癌中的价值。方法:系统检索PubMed、Embase及Web of Science自2018年之后发表的相关文献,初检获得399篇研究。经双人独立去重筛选后,最终纳入11篇符合预设标准的文献。采用RevMan 5.3软件进行Meta分析,纳入的结局指标包括死亡、复发、术后淋巴结转移、术后并发症、术后辅助治疗、手术时间、术中失血量、住院时长、5年无病生存率及5年总生存率等。结果:筛选后纳入11项研究,包括9028例患者。Meta分析显示(P < 0.05具有统计学意义),MIS与较低的死亡人数相关(95%CI = 0.66~0.94, P = 0.01),MIS术后辅助治疗人数少(95%CI = 0.72~0.88, P < 0.00001),MIS患者术后淋巴结转移少(95%CI = 0.70~0.80, P = 0002),MIS和ORH在住院时间上有显著差异,即MIS术后住院时间较ORH短(95%CI = −2.53~0.63, P = 0.001),MIS和ORH在5年无病生存率上有显著差异,ORH术后5年无病生存率优于MIS (95%CI = 1.01~1.59, P = 0.04),MIS术中失血量少于ORH,MIS和ORH在术中失血量上通过敏感性分析后有统计学意义,即微创术中失血量少(95%CI = −128.45~60.04, P < 0.00001)。MIS和ORH术后复发人数无显著差异(95%CI = −0.02~0.02, P = 0.95),MIS和ORH在术后并发症上无显著差异(95%CI = 0.67~1.44, P = 0.91),MIS和ORH在操作时间上无显著差异(95%CI = −42.47~60.55, P = 0.73),MIS和ORH在5年总生存率无显著差异(95%CI = 0.78~1.63, P = 0.52)。结论:微创根治性子宫切除术在降低围手术期死亡率、减少淋巴结转移、缩短住院时间及减少术中失血方面优于开腹手术,且术后辅助治疗需求更低;然而,其5年无病生存率不及ORH。这些发现为宫颈癌的手术治疗提供了重要的临床指导,有助于医生根据患者的具体情况选择最适合的手术方法,具有十分重要的临床意义。展开更多
基于河套盆地HJ01钻孔已有年代框架,对湖相沉积物中207个样品进行了孢粉分析,并利用加权平均偏最小二乘回归(WAPLS)方法定量重建了河套盆地~68.6—46.4 ka BP的最暖月气温变化过程。结果表明:(1)河套盆地内植被类型以荒漠草原为主,主要...基于河套盆地HJ01钻孔已有年代框架,对湖相沉积物中207个样品进行了孢粉分析,并利用加权平均偏最小二乘回归(WAPLS)方法定量重建了河套盆地~68.6—46.4 ka BP的最暖月气温变化过程。结果表明:(1)河套盆地内植被类型以荒漠草原为主,主要科属含量在不同阶段存在差异;周围山地发育以云杉为主的针叶林,经历了2期扩张和1期退缩。(2)~68.6—57.0 ka BP最暖月气温为14.2℃,在10.1~16.9℃之间波动,表明气候整体寒冷;~57.0—52.2 ka BP最暖月气温平均升高1.5℃,最高时可达15.7℃,并在10.5~21.6℃之间波动,表明气候转暖;~52.2—46.4 ka BP最暖月气温为15.8℃,在13.2~17.8℃之间波动,表明气候相对温暖。(3)重建最暖月气温与全球典型古气候记录对比显示,北半球夏季太阳辐射及欧亚冰量的变化可能是影响河套盆地~68.6—46.4 ka BP最暖月气温变化的重要驱动因素。研究结果可为预测未来冰期气候变化提供科学参考。展开更多
文摘The Neue Nationalgalerie(1968)is considered an icon of the 20th century and part of the legacy of Mies van der Rohe.Almost 50 years after its construction the building showed some physiological decay;however,it has been considered obsolete due to the changing standards of use and comfort of an international art gallery affected also by a growing flux of visitors.The paper investigates the future of such an icon of modern architecture moving from some open issues of the intervention carried out by David Chipperfield started up in 2015 and now in an advanced stage.The refurbishment is pursuing the modernization of the building,but trying to match the historical values with the requirements of climate control and safety.The binomials memories/requirements and authenticity/form are at the base of the investigation.Although the intervention confirms the continuity of original use and it is aimed at keeping the image of the icon,it imposes transformations that belong to very different strategies,sometimes incompatible with the preservation of material meanings and values.The restoration work on modern heritage outlines how new cultural and socio-economic needs confront themselves with respecting/reproducing the appearance of the monument.
基金supported by the sub-project“Research and Application of In-Situ Value-Added Water-Soluble Fertilizer Application Technology”(Grant No.2023YFD1700204-3)under the 14th Five-Year National Key R&D Program Project“Development and Industrialization of Novel Green Value-Added Fertilizers”.
文摘Salinization of agricultural land is becoming increasingly severe worldwide,posing a significant threat to food security.The exogenous application of bioactive substances has been widely used to enhance plant resistance to salt stress.In this study,we used corn steep liquor(CSL),myo-inositol(MI),and their combination to improve salt tolerance in Chinese cabbage(Brassica rapa L.ssp.pekinensis)under salt stress conditions.All three treatments significantly increased plant biomass and nutrient uptake,and improved soil physicochemical properties,while alleviating oxidative damage and ion toxicity.
文摘基于河套盆地HJ01钻孔已有年代框架,对湖相沉积物中207个样品进行了孢粉分析,并利用加权平均偏最小二乘回归(WAPLS)方法定量重建了河套盆地~68.6—46.4 ka BP的最暖月气温变化过程。结果表明:(1)河套盆地内植被类型以荒漠草原为主,主要科属含量在不同阶段存在差异;周围山地发育以云杉为主的针叶林,经历了2期扩张和1期退缩。(2)~68.6—57.0 ka BP最暖月气温为14.2℃,在10.1~16.9℃之间波动,表明气候整体寒冷;~57.0—52.2 ka BP最暖月气温平均升高1.5℃,最高时可达15.7℃,并在10.5~21.6℃之间波动,表明气候转暖;~52.2—46.4 ka BP最暖月气温为15.8℃,在13.2~17.8℃之间波动,表明气候相对温暖。(3)重建最暖月气温与全球典型古气候记录对比显示,北半球夏季太阳辐射及欧亚冰量的变化可能是影响河套盆地~68.6—46.4 ka BP最暖月气温变化的重要驱动因素。研究结果可为预测未来冰期气候变化提供科学参考。
