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    题名 作者 年代 出处 被引量
1中国黄土磁颗粒分析及其古气候意义显示文摘本文运用岩石磁学方法,对各地黄土和古土壤样品进行低温磁化率、频率磁化率和低温剩磁退磁的研究,证明了黄土中的磁颗以顺磁(单畴和多畴,即>0.03μm)为特点,而古土壤以超顺磁(<0.03μm)为主要特征.黄土中的磁铁矿相对含量(占天然剩磁强度的百分比)比古土壤高,黄土频率磁化率的波谷、波峰分别与剖面黄土和古土壤的风化或土壤化程度相关,说明在黄土形成古土壤的成土过程中,是由于许多细小铁磁性矿物(磁赤铁矿和磁铁矿)生成,使其磁化率增高.这些细小铁磁性矿物的含量反映了古气候温湿程度的强弱和持续时间的长短.刘秀铭 刘东生 Friedrich Heller 许同春 1991中国科学(B辑)1991,,6:62
2华南早三叠世的古地磁学与大地构造显示文摘从华南几个具代表性地点的下三叠统灰岩中,获得了有意义的古地磁学初步结果.这些结果支持华南存在分离板块的设想.根据新近获得的地质与古地磁学证据,推断华南存在4个岩石图板块.它们是扬子(D=232.4°,I=-11.8°,K=28.2,α95=5.5°),湘桂(D=198.0°,I=32.2°,α95=12.9°),华夏(D=88.0°,I=13.0°,K=20.1,α95=9.1°)和海南(上二叠统D=338.2°,I=15.9°,K=10.2,α95=14.3°)板块.4个板块的古地磁极位分散,纬度差明显,并存在碰撞后的局部与区域性的旋转作用,尤其是顺时针旋转.华南早中生代的大地构造可理解为4个来自古特提斯和冈瓦纳的岩石圈碎块与欧亚大陆聚合作用的产物.陈海泓 孙枢 李继亮 许靖华 Maja.Haag Jom Dobson Friedrich Heller 1994地质科学1994,29,1:54
3兰州盆地第三系磁性地层年代与古环境记录显示文摘对兰州盆地永登剖面第三系沉积物进行了磁性地层学研究,建立了古新世~中新世磁性地层序列,并对比BKSA95古地磁年表为相应地层及所含哺乳动物群建立了时间标尺,讨论了盆地古环境记录及与青藏高原隆升关系.结果表明:西柳沟组顶界年龄约51 Ma.时代为始新世.野狐城组顶界年龄大约为31.5Ma,底界年龄为51Ma,时代为早始新世晚期~早渐新世早期,咸水河组顶界年龄大约为15 Ma,底界年龄约为31.5 Ma,时代为早渐新世~中中新世.咸水河组下段地层年龄为 31.5~20.0 Ma时代为早渐新世及早中新世早期.成水河组中段地层年龄约 20.0~16.5 Ma.时代为早中新世中期.岳乐平 F. Heller 邱占祥 张莉 颉光普 邱铸鼎 张云翔 2000科学通报2000,45,18:46
4中国黄土磁化率与第四纪古气候研究显示文摘本文以实验数据证明,黄土磁化率的高低与其经历的风化或土壤化强度密切相关,风化程度决定了磁铁矿的生成最及其颗粒的细小程度,从而决定了磁化率的高低。因此,与土壤化程度密切相关的中国黄土地层记录了第四纪古气候变化。刘秀铭 刘东生 Friedrich Heller 许同春 1992地质科学1992,27,A12:40
5兰州盆地永登剖面记录的第三纪沉积环境显示文摘对兰州盆地永登剖面第三系沉积进行了沉积学研究、并结合年代学研究结果分析了新生代以来沉积环境变化与气候变化。古新世末至早始新世沉积了一套扇三角洲相沉积 (细柳沟组 ) ,为具交错层理的砖红色砂岩 ,顶界年龄约 5 1Ma。兰州地区在 5 1MaB .P .经历了一次大的环境变化 ,气候由相对温暖湿润转为半干旱半湿润 ,气候炎热 ,湖盆由淡水湖转为盐湖 ,蕴示着由副热带高压控制的干旱带北移 ,兰州地区进入受行星风系控制的干旱带。早始新世晚期至早渐新世早期 ( 5 1~ 31.5MaB .P .) ,在近 2 0Ma时间内经历了微咸湖—盐湖阶段 (野狐城组 ) ,砂泥岩沉积中含有大量石膏夹层。早渐新世 ,兰州地区向湿润方向转化 ,兰州盆地由咸水湖转化为淡水湖 ,可能反映了东南季风逐渐形成 ,中国大陆由早先行星风系控制转化为季风控制 ,前期东南方向干旱带消失 ,西北干旱带出现 ,兰州地区相对早先湿润。早渐新世中期至中中新世 ( 31.5~ 15MaB .P .) ,兰州盆地在经历了三次大的沉积旋回后湖盆逐渐干枯 ,三个大旋回分别由河流相砂岩—微咸水滨湖相砂泥岩、泛滥平原相泥岩 ,河流相砂岩—淡水滨湖相砂泥岩—沼泽相、泛滥平原相泥岩 ,河流相砂岩—沼泽相、泛滥平原相泥岩组成。 2 0MaB .P盆地接受大量砂砾石沉积 。岳乐平 邱占祥 颉光普 邱铸鼎 张莉 张云翔 Heller F 2003沉积学报2003,21,4:28
6云南思茅地区新生代的持续旋转显示文摘新生代早期(约45 Ma),印度板块在经历了长时期的北向漂移后终与欧亚大陆碰撞。其后,以印度洋的扩张作用为驱动力,印度板块持续向欧亚大陆推挤,使造山带地区产生大规模的陆壳缩短,造就了壮观的世界屋脊——青藏高原。70年代中期。陈海泓 郝杰 Jon P.Dobson Friedrich Heller Kennech J.Hsū 1993科学通报1993,38,24:13
7Susceptibility variations of multiple origins of loess from the Ily Basin(NW China)显示文摘The magnetic susceptibility of loess from the Ily Basin,northwestern China shows maximum values in S0 paleosols but minimum values in other paleosols,the mechanism of which has been well debated.In this work,systematic magnetic measurements were made on a representative section from Neleke county.The results show that the loess horizons(L1,L2 and L3) have multi-domain magnetite grains of aeolian origin,S0 is characterized by production of pedogenetic ultrafine-grained ferrimagnetic minerals,and the other paleosols(S1,S2,and S3) are characterized by the formation of nonferrimagnetic minerals associated with waterlogging.The correlation between the low concentration of ferrimagnets,high paramagnetic content,high magnetic coercivity remanence,fine ferrimagnetic grain size and intensified pedogenesis suggest two competing processes of pedogenetic enhancement and pedogenetic depletion in the lower paleosols.Pedogenetic depletion dominates and is responsible for the low susceptibility.Changes in magnetic grain size distribution occur during pedogenetic depletion.The susceptibility variations are of multiple origins in the loess of the Ily Basin.Pedogenetic enhancement,pedogenetic depletion,and allochthonous input of magnetic minerals should all be taken into account to explain the variations of magnetic parameters.CHEN Qu LIU XiuMing HELLER F HIRT Ann M LU Bin GUO XueLian MAO XueGang ZHAO GuoYong FENG Hua GUO Hui 2012Chinese Science Bulletin2012,57,15:9
8三维超高场7T高分辨磁敏感加权像静脉造影(英文)显示文摘目的超高场磁共振具有高信噪比和独特的磁敏感对比,使其在无创性脑血管造影尤其是对小静脉的检测有明显优势。本文探讨如何在超高场磁共振7T优化和获取高质量的磁敏感加权像(SWI)静脉造影。方法选择10例正常志愿者作为研究对象,采集一系列7TSWI静脉造影数据并与3T结果作对比。选择参数TR=30~45ms,TE=13~26ms,带宽(BW)=80~140Hz/pixel,翻转角(FA)=10~25?;所有的数据用同样的图像后处理方式得到最小信号叠加投影(mIP)的SWI静脉造影像,并进行定量化分析。结果图像优化后,我们得到高分辨率的7T静脉造影图像。根据静脉血的T2*选择优化TE:16ms(7T),28ms(3T);FA:15?(3T和7T)。相对于3T,7TSWI图像有较高的信噪比和静脉与周围组织的对比度,并显示出更多的微小静脉。结论超高场SWI静脉造影对于显示微小静脉具有明显的优势。Yulin Ge Samuel Barnes Samantha Heller Daniel K.Sodickson Lin Tang E.Mark Haacke Jianping Dai Robert I.Grossman 2010磁共振成像2010,1,2:8
9Vanishing bile duct syndrome in human immunodeficiency virus infected adults:A report of two cases显示文摘Vanishing bile duct syndrome(VBDS) is a group of rare disorders characterized by ductopenia,the progressive destruction and disappearance of intrahepatic bile ducts leading to cholestasis.Described in association with medications,autoimmune disorders,cancer,transplantation,and infections,the specific mechanisms of disease are not known.To date,only 4 cases of VBDS have been reported in human immunodeficiency virus(HIV) infected patients.We report 2 additional cases of HIV-associated VBDS and review the features common to the HIV-associated cases.Presentation includes hyperbilirubinemia,normal liver imaging,and negative viral and autoimmune hepatitis studies.In HIV-infected subjects,VBDS occurred at a range of CD4+ T-cell counts,in some cases following initiation or change in antiretroviral therapy.Lymphoma was associated with two cases;nevirapine,antibiotics,and viral co-infection were suggested as etiologies in the other cases.In HIV-positive patients with progressive cholestasis,early identification of VBDS and referral for transplantation may improve outcomes.Ana Paula Oppenheimer Christopher Koh Mary McLaughlin John C Williamson Thomas D Norton Jennifer Laudadio Theo Heller David E Kleiner Kevin P High Caryn G Morse 2013World Journal of Gastroenterology2013,19,1:8
10Meta‐analysis of insulin aspart versus regular human insulin used in a basal–bolus regimen for the treatment of diabetes mellitus (在基础—餐时糖尿病治疗方案中使用门冬胰岛素与使用常规人胰岛素对照研究的Meta分析)显示文摘Simon Heller Bruce Bode Plamen Kozlovski Anne Louise Svendsen 2013Journal of Diabetes2013,,4:5
11华南与扬子板块早三叠世分隔的古地磁学初步证据显示文摘在“华南中生代造山作用”这一设想中,华南主要存在三个岩石圈板块:扬子板块,华南板块与东南亚板块。扬子板块与华南板块在前中三叠世处于分离状态,其间可能存在一洋盆,许靖华等曾称之为“板溪洋”。为进一步验证这一科学预见,作者于1989年10月与12月。陈海泓 孙枢 李继亮 许靖华 Friedrich Heller Jon Dobson 1992科学通报1992,37,6:5
12Chronic hepatitis delta: A state-of-the-art review and new therapies显示文摘Chronic delta hepatitis is the most severe form of viral hepatitis affecting nearly 65 million people worldwide.Individuals with this devastating illness are at higher risk for developing cirrhosis and hepatocellular carcinoma.Delta virus is a defective RNA virus that requires hepatitis B surface antigen for propagation in humans.Infection can occur in the form of a co-infection with hepatitis B,which can be self-limiting,vs superinfection in a patient with established hepatitis B infection,which often leads to chronicity in majority of cases.Current noninvasive tools to assess for advanced liver disease have limited utility in delta hepatitis.Guidelines recommend treatment with pegylated interferon,but this is limited to patients with compensated disease and is efficacious in about 30%of those treated.Due to limited treatment options,novel agents are being investigated and include entry,assembly and export inhibitors of viral particles in addition to stimulators of the host immune response.Future clinical trials should take into consideration the interaction of hepatitis B and hepatitis D as suppression of one virus can lead to the activation of the other.Also,surrogate markers of treatment efficacy have been proposed.Christy Gilman Theo Heller Christopher Koh 2019World Journal of Gastroenterology2019,25,32:4
13伊犁黄土磁化率的增减及其成因显示文摘中国伊犁黄土磁化率一般在S0最高,但在其他古土壤层低,磁化率增减机制存在争议.对尼勒克县的一个剖面进行系统的磁学研究后发现,黄土层含有风成多畴磁铁矿,S0含有较多成壤成因的超细粒亚铁磁性矿物,其他古土壤层含有较多过湿条件下形成的非亚铁磁性矿物.非亚铁磁性矿物高含量、高矫顽力、亚铁磁性矿物低含量与较细的磁颗粒粒径对应于较高的成壤强度,揭示存在相互竞争的磁化率成壤增强过程和成壤削弱过程,以成壤削弱过程为主,导致磁化率降低.成壤削弱过程中,磁颗粒粒径发生变化.伊犁黄土磁化率变化成因多样,对磁学参数的解释要全面考虑磁性矿物的风成输入和成壤成因的磁性增强及磁性削弱作用.陈渠 刘秀铭 HELLER F HIRT Ann M 吕镔 郭雪莲 毛学刚 陈家胜 赵国永 丰华 郭晖 2012科学通报2012,57,24:4
14财政空间:含义显示文摘“财政空间”一词近年来在国际援助界中非常流行,但是它的真正意义却一直飘忽不定。有时,当政府认为应该放松财政限制、加大借款额以支持基础设施类工程时,“财政空间”一词就浮出水面了。因为基础设施类工程可以创造出具有生产力的资产,长期来看一定能够收回投资,创造出自身所需要的财政空间。但是,最近这个词更多地被那些呼吁增加教育和医药、卫生领域投资的人士所使用,Peter Heller 2005金融与发展2005,42,2:3
15快速作用和预混胰岛素类似物显示文摘Simon Heller 2004国外医学:内分泌学分册2004,2,4:3
16各种添加剂对卷烟烟气组成的影响综述(Ⅰ)显示文摘以表格的形式简要地介绍了各种烟草添加剂的添加量、添加位置、添加方法、是否转移到主流烟气中。Thilo Paschke Gerhard Scherer Wolf-Dieter Heller 2003烟草科技2003,36,6:3
17The liver diseases of lipodystrophy: The long-term effect of leptin treatment显示文摘Elika Safar Zadeh Andreea O. Lungu Elaine K. Cochran Rebecca J. Brown Marc G. Ghany Theo Heller David E. Kleiner Phillip Gorden 2013Journal of Hepatology2013,,1:3
18Modes of genetic adaptations underlying functional innovations in the rumen显示文摘The rumen is the hallmark organ of ruminants and hosts a diverse ecosystem of microorganisms that facilitates efficient digestion of plant fibers.We analyzed 897 transcriptomes from three Cetartiodactyla lineages:ruminants,camels and cetaceans,as well as data from ruminant comparative genomics and functional assays to explore the genetic basis of rumen functional innovations.We identified genes with relatively high expression in the rumen,of which many appeared to be recruited from other tissues.These genes show functional enrichment in ketone body metabolism,regulation of microbial community,and epithelium absorption,which are the most prominent biological processes involved in rumen innovations.Several modes of genetic change underlying rumen functional innovations were uncovered,including coding mutations,genes newly evolved,and changes of regulatory elements.We validated that the key ketogenesis rate-limiting gene(HMGCS2)with five ruminant-specific mutations was under positive selection and exhibits higher synthesis activity than those of other mammals.Two newly evolved genes(LYZ1 and DEFB1)are resistant to Gram-positive bacteria and thereby may regulate microbial community equilibrium.Furthermore,we confirmed that the changes of regulatory elements accounted for the majority of rumen gene recruitment.These results greatly improve our understanding of rumen evolution and organ evo-devo in general.Xiangyu Pan Yudong Cai Zongjun Li Xianqing Chen Rasmus Heller Nini Wang Yu Wang Chen Zhao Yong Wang Han Xu Songhai Li Ming Li Cunyuan Li Shengwei Hu Hui Li Kun Wang Lei Chen Bin Wei Zhuqing Zheng Weiwei Fu Yue Yang Tingting Zhang Zhuoting Hou Yueyang Yan Xiaoyang Lv Wei Sun Xinyu Li Shisheng Huang Lixiang Liu Shengyong Mao Wenqing Liu Jinlian Hua Zhipeng Li Guojie Zhang Yulin Chen Xihong Wang Qiang Qiu Brian PDalrymple Wen Wang Yu Jiang 2021Science China(Life Sciences)2021,64,1:3
19Preparation and hybridization analysis of DNA/RNA from E. coli on microfabricated bioelectronic chips显示文摘Cheng Jing Sheldon E L Wu Lei Uribe A Gerrue L O Carrino J Heller M J O'Connell J P 0,,:2
20J-Point Elevation in Survivors of Primary Ventricular Fibrillation and Matched Control Subjects显示文摘Raphael Rosso Evgeni Kogan Bernard Belhassen Uri Rozovski Melvin M. Scheinman David Zeltser Amir Halkin Arie Steinvil Karin Heller Michael Glikson Amos Katz Sami Viskin 2008Journal of the American College of Cardiology2008,,15:2
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