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| 1 | 北京市PM_(2.5)中主要重金属元素污染特征及季节变化分析显示文摘利用2005年4月18日—2008年9月27日北京市中国地质大学(东门)采样点的PM2.5质量浓度变化与重金属Cd、Pb、As、Cu及Zn等污染特征,结合最新发布的《环境空气质量标准》(GB3095—2012),初步分析了近4年时间里北京市单点PM2.5的污染水平及主要重金属污染元素的变化特征,得出了一些有意义的认识。2005年春季—2008年春季期间PM2.5质量浓度为13.1~171μg/m3之间变化,平均浓度为65.6μg/m3,超过最新环境空气质量标准制定的PM2.5年平均浓度限值35μg/m3,北京市PM2.5污染形势依然严峻。奥运会及残奥会期间PM2.5的24 h质量浓度平均值为40.7μg/m3,没有超标。北京市PM2.5中的重金属元素含量及富集特征随着不同年份不同季节差别较大,典型的城市污染元素As在冬季质量浓度最高。对比环境空气质量标准的参考浓度限值发现,As元素的质量浓度在研究期间的年均值均超过了年平均浓度参考限值0.006μg/m3。化学分析结果显示人为污染是PM2.5中Cu、Cd、Pb、Zn、As重金属污染的主要来源,其中As污染需要引起足够重视。研究结果对于北京市大气污染防治具有一定的借鉴意义。 | 于扬 岑况 Stefan Norra Nina Schleicher 陈媛 | 2012 | 现代地质2012,26,5: | 49 |
| 2 | 北京市大气可吸入颗粒物的化学成分和来源显示文摘2007年3月至2008年5月,在北京市成府路东口设立采样点,共采集监测周期为一周的PM2.5(直径小于2.5μm的大气可吸入颗粒物)样品56个,用HR-ICP-MS方法测量了15种元素的含量,并在此基础上应用主因子分析法对PM2.5中这些元素的来源进行探讨。同时,在2008年奥运会和残奥会期间开展了24h时间间隔的密集采样,特别分析了机动车限行期间细颗粒污染物的浓度特征。结果表明,2007年春季至2008年春季期间北京市大气PM2.5平均浓度为72.9μg/m3,超过美国环保局(USEPA)制定的PM2.5年平均浓度限值15μg/m3的近5倍。机动车限行期间北京成府路东口采样点大气PM2.5的平均浓度为40.7μg/m3。通过因子分析方法确定北京PM2.5的3种可能来源:①交通排放、工业排放和燃煤,特征元素为Cu、Zn、As、Sn、Sb、Cd、Pb;②本地扬尘和远源沙尘细颗粒;③可能与成土母岩风化有关的土壤颗粒的再悬浮和/或迁移,其方差贡献率分别为41.2%、31.4%和12.2%。 | 于扬 岑况 NORRA Stefan SCHLEICHER Nina 陈媛 | 2012 | 地质通报2012,31,1: | 21 |
| 3 | Educating Learners for Their Future,Not Our Past显示文摘Purpose-This paper aims to examine the educational demands in the digital age from tomorrow’s teachers and policy-makers,and to encourage and incentivize all actors to develop the innovative learning environments that we need for tomorrow’s schools.Design/Approach/Methods-As a conceptual paper,this article has consulted and analyzed a wide range of updated data and literature to consolidate the argumentation on tomorrow’s educational demands.Findings-The paper mainly provides possible answers on how to educate students for their future,rather than our past.The heart of future education is to help students develop a reliable compass and tools,transformative competency,and to navigate through an increasingly complex,volatile,and uncertain world.To fulfill this core mission,a new set of curriculum design principles,changing school system,renewed teacher culture,and an alternative assessment program are highly advocated.Originality/Value-Based on the latest observations and reflections,the paper broadens our visions on tomorrow’s education and future schools. | Andreas Schleicher | 2018 | ECNU Review of Education2018,1,1: | 6 |
| 4 | High Hepatic SCD1 Activity Is Associated with Low Liver Fat Content in Healthy Subjects under a Lipogenic Diet显示文摘 | Günther Silbernagel Marketa Kovarova Alexander Cegan Jürgen Machann Fritz Schick Rainer Lehmann Hans-Ulrich H?ring Norbert Stefan Erwin Schleicher Andreas Fritsche Andreas Peter | 2012 | The Journal of Clinical Endocrinology & Metabolism2012,,12: | 3 |
| 5 | 一项丹麦全国的随访研究:口服抗凝剂治疗在心房颤动射频消融术后远期血栓栓塞及严重出血事件的风险评估显示文摘射频消融是目前治疗症状性心房颤动(房颤)的推荐手段,但目前还不确定射频消融是否可降低房颤所致血栓栓塞并发症的发生。欧洲心脏病学会(ESC)指南建议房颤射频消融术后至少接受3个月口服抗凝剂治疗,但3个月后是否继续服用需个体化评估卒中风险。 | 刘德敏 Polzin A Schleicher M Seidel H | 2015 | 临床荟萃2015,30,3: | 2 |
| 6 | The AGE/RAGE/NF-κB Pathway May Contribute to the Pathogenesis of Polyneuropathy in Impaired Glucose Tolerance (IGT)显示文摘 | K.-M. Haslbeck E. Schleicher A. Bierhaus P. Nawroth M. Haslbeck B. Neund?rfer D. Heuss | 2005 | Exp Clin Endocrinol Diabetes2005,,05: | 2 |
| 7 | Evidence that thalidomide is effective in recurrent bleeding from watermelon stomach associated with liver cirrhosis显示文摘 | Stephan Moser Alexander Tischer Asia Karpi Michael Schleicher Susanne Stavjanik Michael Gschwantler | 2014 | Endoscopy2014,,: | 2 |
| 8 | The AGE/RAGE/ NF-kappaB pathway may contribute to the pathogenesis of polyneuropathy in impaired glucose tolerance (IGT) 显示文摘 | Haslbeck KM Schleicher E Bierhaus A | 2005 | Exp Clin Endocfinol Diabetes2005,113,5: | 1 |
| 9 | A Unified Ap- proach in 3-D Seismic Reflection Imaging: Part I: Basic Concepts显示文摘 | Hubral P Schleicher J Tygel M | 1996 | Geophysics1996,61,3: | 1 |
| 10 | A Unified Ap- proach in 3-D Seismic Reflection Imaging: Part II: Theory显示文摘 | Tygel M Schleicher J Hubral P | 1996 | Geophysics1996,61,3: | 1 |
| 11 | Involvement of CD40 Targeting miR-224 and miR-486 on the Progression of Pancreatic Ductal Adenocarcinomas显示文摘 | Soeren Torge Mees MD Wolf Arif Mardin MD Sonja Sielker Edith Willscher Norbert Senninger PhD Christina Schleicher MD Mario Colombo-Benkmann PhD Joerg Haier PhD | 2009 | Annals of Surgical Oncology2009,,8: | 1 |
| 12 | Minimum Apertures and Fresnel Zones in Migration and Demi- gration显示文摘 | Schleicher J Hubral P Tygel M | 1997 | Geophysics1997,62,1: | 1 |
| 13 | Role of the hexosamine biosynthet- ic pathway in diabetic nephropathy显示文摘 | Schleicher ED Weigert C | 2000 | Kidney Int2000,77,: | 1 |
| 14 | Impact of heart valve decellulafization on 3-D ultrastructure, immunogenicity and thrombo- genicity 显示文摘 | Zhou J Fritze O Schleicher M | 2010 | Biomaterials2010,31,9: | 1 |
| 15 | Specific quantification by HPLC of protein (lysine) bound glucose in human serum albumin and other glycosylated proteins显示文摘 | Schleicher E Wieland OH | 1981 | J Con Chem Clin Biochem1981,19,: | 1 |
| 16 | Immunohistologic markers for age-related changes of human lumbar interver-tebral discs显示文摘 | Nerlich AG Schleicher ED Boos N | | 0,,24: | 1 |
| 17 | Biphasic scaffolds for repair of deep osteochondral defects in a sheep model显示文摘 | SCHLEICHER I LIPS K S SOMMER U | 2013 | The Journal of Surgical Research2013,183,1: | 1 |
| 18 | The innate immune response against Leishmania parasites显示文摘 | Liese J Schleicher U Bogdan C | 2008 | Immunobiology2008,213,34: | 1 |
| 19 | A comparison of imaging conditions for wave-equation shot-profile migration 显示文摘 | Schleicher J | 2007 | Expanded Abstracts of 77^th Annual International SECT Meeting2007,,: | 1 |
| 20 | Effects of estradiol on estrogen receptor, progesterone receptor, and tyrosinase in hamster melanoma transplanted into athymic mice 显示文摘 | Hitselberger MH Schleicher RL Berttie CW | 1988 | Cancer Res1988,48,: | 1 |