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Progress in Natural Science:Materials International 2007年第9期17卷 1023-1028页

作者： Liu Jiacheng1,Bai Jing1,Peng Miao2,Fan Xiaofei1 and Guo Qiyong3(1.Department of Biomedical Engineering,Tsinghua University,Beijing 100084,china 2.Department of Electroneurophysiology,the Sixth hospital of Peking University,Beijing 100085,china 3.Department of Radiology,The Second hospital of china medical University,Shenyang 110003,china) Department of Biomedical Engineering Tsinghua University Beijing 100084 China 2. Department of Electroneurophysiology the Sixth Hospital of Peking University Beijing 100085 China 3． Department of Radiology The Second Hospital of China Medical University Shenyang 110003 China

Some studies have shown that native chinese speakers have different laterality in matched Stroop tasks from native English ***,many imaging data,which show left laterality of English-matched Stroop interference,have been *** a few functional imaging studies have been conducted to investigate the phenomenon of the chinese version of Stroop *** this study,functional activity in the lateral prefrontal cortex of a group of normal chinese boys with functional near-infrared imaging during a Stroop color-word task was measured to show different Stroop interferences in the prefrontal *** results show obvious fluctuation of the cerebral blood volume in the right prefrontal cortex in all boys,which agrees with the finding of previous studies,that is,chinese native boys have right laterality in their brain when the chinese version of Stroop color-word task is applied.

关键词： laterality Stroop effect prefrontal cortex near-infrared

A brief account on the study of the insulin crystal structure In retrospect:Forty years after the determination of insulin’s crystal structure by chinese scientists

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Science china(Life Sciences) 2010年第1期53卷 13-15页

作者： WANG Da-Cheng1 & GU XiaoCheng2 1 National Laboratory of Macromolecules,Institute of Biophysics,chinese Academy of Sciences,Beijing 100101,china 2 college of Life Sciences,Peking University,Beijing 100871,china National Laboratory of Macromolecules Institute of Biophysics Chinese Academy of Sciences college of Life Sciences Peking University

"Standards there as high as achieved elsewhere";news delivered to the world by Science in china Approximately forty years ago when china was undergoing a period of great difficulty, Science in china,

关键词： A brief account on the study of the insulin crystal structure In retrospect

Solutions and solvabilities of general binary quadric indefinite equations

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chinese Science Bulletin 1997年第7期42卷 541-545页

作者： LiU LiAnhui Traditional chinese medical college, Hefei 230038, china Anhui Traditional chinese medical college Hefei China

To this day for special m and small |c|, solvable, c are obtained about general equations x^2-my^2=c with positive squarefree integer m and integer c by Ankeny, Mollin et al. Afterwards, Zhang in ref. [1] greatly developed their correspondent results and gave all proper integer solutions and solvable c about the equations for general m. Then Lu in ref. [2] gave results for small |q| about general binary quadric indefinite

关键词： general binary quadric indefinite equation proper integer solution solvability.

Spectral integration and perception of chinese back vowel /γ/

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Science china(Information Sciences) 2010年第11期53卷 2300-2309页

作者： YU ShuiYuan1, CHEN YuDong2 & WU JieRu3 1School of Computer, Communication University of china, Beijing 100024, china 2International college for chinese Language Studies, Communication University of china, Beijing 100024, china 3School of Presentation Art, Communication University of china, Beijing 100024, china 1. School of Computer Communication University of China Beijing 100024 China2. International College for Chinese Language Studies Communication University of China Beijing 100024 China3. School of Presentation Art Communication University of China Beijing 100024 China

The first two formants of the back vowels of many languages, such as English, are often close in frequency within the critical 3.5-Bark distance and are phonetically equivalent to a single intermediate formant. This phenomenon is called spectral integration. The integrated spectral peak is related more directly to phonetic quality than to acoustic formants and is therefore an important cue for determining the phonetic quality of vowels. The chinese vowel /γ/ is a back vowel, but its first two formants are commonly separated by more than the critical distance. What are the perceptual cues for this vowelDoes the spectral integration phenomenon influence its perceptionThis paper describes a series of identification experiments and rating experiments on the influences of the distance, spectral shape, and relative amplitude of the first two formants on the phonetic quality of /γ/. The results show that all stimuli with a two-peaked spectral shape are perceived as /γ/ whenever the first two formants are separated by the critical Bark distance or beyond. When the two formants are separated by roughly the critical distance, only those stimuli with sharp formants are perceived as /γ/, while stimuli with trapezoidal or single-peaked spectral shapes are not perceived as /γ/. Specifically, when the second formant is 10 dB higher than the first, the spectral integration phenomenon influences formant perception, and the stimulus is not perceived as /γ/; on the contrary, when the second formant is 0-20 dB lower than the first, the stimulus is perceived as /γ/, and spectral integration does not occur. That is to say, spectral integration occurs asymmetrically about the relative amplitudes of the first two formants. In a word, the chinese vowel /γ/ is a back vowel, but spectral integration does not occur in the perception of its first two formants. Two individual formants are necessary for the phonetic color of the chinese vowel /γ/. This vowel is different from the back vowels of w

关键词： spectral integration chinese back vowel /γ/ back vowel critical distance

中国儿童支气管肺泡灌洗术临床实践指南(2024)

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中国当代儿科杂志 2024年第1期26卷 1-13页

作者：中国医师协会儿童重症医师分会中国医师协会新生儿医师分会甘肃省妇幼保健院/甘肃省中心医院/甘肃省儿科临床医学研究中心兰州大学基础医学院循证医学中心/世界卫生组织指南实施与知识转化合作中心/甘肃省医学指南行业技术中心封志纯易彬杨克虎不详中国人民解放军总医院第七医学中心儿科医学部甘肃省妇幼保健院(甘肃省中心医院)/甘肃省儿科临床医学研究中心兰州大学基础医学院循证医学中心/世界卫生组织指南实施与知识转化合作中心/甘肃省医学指南行业技术中心

儿童支气管肺泡灌洗术已成为儿童呼吸系统疾病诊治中的重要技术,为进一步规范儿童支气管肺泡灌洗术的临床应用,基于世界卫生组织指南制订手册和中国临床诊疗指南的制订/修订指导原则(2022版),中国医师协会儿童重症医师分会等机构联合制... 详细信息

儿童支气管肺泡灌洗术已成为儿童呼吸系统疾病诊治中的重要技术,为进一步规范儿童支气管肺泡灌洗术的临床应用,基于世界卫生组织指南制订手册和中国临床诊疗指南的制订/修订指导原则(2022版),中国医师协会儿童重症医师分会等机构联合制定了《中国儿童支气管肺泡灌洗术临床实践指南(2024)》。该指南形成30条针对儿童支气管肺泡灌洗术的推荐意见,以规范支气管肺泡灌洗术的操作流程。

关键词：支气管肺泡灌洗术指南推荐意见儿童

Characteristics and origins of primary fluids and noble gases in mantle-derived minerals from the Yishu area,Shandong Province,china

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Science china Earth Sciences 2006年第1期49卷 77-87页

作者： MA Jinlong1,2, TAO Mingxin2,3 & YE Xianren2 1. Resources and Environmental School, lanzhou University, lanzhou 730000, china 2. Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics, chinese Academy of Sciences, lanzhou 730000, china 3. college of Resources Science & Technology, Beijing Normal University, Beijing 100875, china 1. Resources and Environmental School Lanzhou University Lanzhou 730000 China 2. Key Laboratory of Gas Geochemistry Institute of Geology and Geophysics Chinese Academy of Sciences Lanzhou 730000 China 3. college of Resources Science & Technology Beijing Normal University Beijing 100875 China

Fluids and noble gases of mantle-derived materials are important tracers forthe mantle information. Compositions of primary fluids and noble gases in mantle-derived mineralsfrom the Yishu area, Shandong Province, china, were tested by the methods of heat-bursting andheat-melting respectively. The fluids are mainly composed of CO_2, CO and H_2, which account forabout 90% of the total, and are similar to the mantle-derived rocks from other areas of easternchina; ratios of ~3He/~4He in almost all samples range from 0.82 Ra to 2.74 Ra, whereas^(40)Ar/^(36)Ar from 299.5 to 758.8. Both ranges are much lower than those of the typical oceanmantle-derived samples (such as MORB) and primarily reflect the influences of the atmosphericcomponents and the radiogenic isotopes. Ratios of C/~3He range from 27.6 x 10~9 to 1050 x 10~9,N_2/Ar from 927 to 56612, and N_2/~3He from 2.5 x 10~9 to 27 x 10~9, similar to those in westernUnited States and New Zealand which belong to the tectonic plate collision regions. The ratios fallin the intersect of mantle-crust-atmosphere in the comprehensive tracer-charts, reflecting theinfluences of the atmosphere and the crusts with organic components. Our results suggest that thecomposition of the primary fluids and the isotopic ratios of the noble gases may either reflect theevolution process of mantle-derived rocks connected with the rise and eruption of magma, or theinfluence of the ancient subduction-plate on the continental mantle of this region.

关键词： noble gases, primary fluids, mantle-derived minerals, Yishu area.

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中国遗传性血色病诊疗指南

中华肝脏病杂志 2024年第9期32卷 787-798页

作者：中华医学会肝病学分会贾继东徐小元不详首都医科大学附属北京友谊医院肝病中心北京100050 北京大学第一医院感染科北京100034

遗传性血色病(HH)是由于铁调节相关基因变异所引起的铁过载性疾病,因大量的铁沉积在肝脏、心脏、皮肤、胰腺及性腺等器官并导致相应的多系统损害。HH在欧美人群相对常见,主要由HFE基因突变引起;在中国和其他亚洲国家罕见,主要由非HEF基... 详细信息

遗传性血色病(HH)是由于铁调节相关基因变异所引起的铁过载性疾病,因大量的铁沉积在肝脏、心脏、皮肤、胰腺及性腺等器官并导致相应的多系统损害。HH在欧美人群相对常见,主要由HFE基因突变引起;在中国和其他亚洲国家罕见,主要由非HEF基因突变引起。其临床特征是原因不明的慢性肝炎或肝硬化,伴有血清铁蛋白升高和/或转铁蛋白饱和度升高,MRI显示肝脏铁沉积,肝活检显示肝细胞铁沉积,基因检测有助于确诊HH。放血治疗是治疗HH的首选疗法,对于不能耐受者可采用铁螯合剂治疗,发展至终末期肝病者需行肝移植。为帮助临床医师在HH的诊治中做出合理决策,中华医学会肝病学分会组织临床、分子遗传学、病理学、影像学和临床研究方法学等领域的专家,系统总结了国内外有关研究进展,共同制订了本指南。

关键词：遗传性血色病诊断治疗指南

Function of chymase in the heart angiotensin Ⅱ formation in transgenic mice

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chinese Science Bulletin 2001年第11期46卷 922-925页

作者： LI Peng & CHEN LanyingCardiovascular Institute & Fu Wai hospital, chinese Academy of medical Sciences & Peking Union medical college, Beijing 100037, china Cardiovascular Institute & Fu Wai hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China

The myosin light chain 2 promoter-human heart chymase (MLC2-hChymase) transgenic mice founded by our laboratory were used as the model to study the function of chymase in the heart angiotension Ⅱ (Ang Ⅱ) formation and heart remodeling. Tissue-specific expression of human heart chymase gene and transcriptional expression of type Ⅰ and type Ⅲ collagens genes were analyzed by RT-PCR. Activities of chymase, ACE and the levels of Ang Ⅱ in heart and plasma were determined with radioimmunoas-say (RIA) kit. Activity of heart matrix metalloproteinase-9 (MMP-9) was detected using gelatin zymography. The cardiac hypertrophic phenotypes were also observed with the physiological and morphological methods. The results in the MLC2-hChymase transgenic mice indicated: ( i ) human heart chymase gene was expressed specially in the heart; (u) heart chymase activity increased markedly in the transgenic mice vs non-transgenic mice (control) (0.27±0.07 U/mg vs. 0.15±0.02 U/mg, P<0.05) with no significant difference in

关键词： chymase transgenic mice angiotensin Ⅱ heart remod- eling collagen.

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DSA检查技术临床应用专家共识

中华放射学杂志 2024年第10期58卷 995-1005页

作者：中华医学会影像技术分会中国医师协会医学技师专业委员会中国医药教育协会医学影像技术学专业委员会不详华中科技大学同济医学院附属协和医院放射科武汉430022 四川大学华西医院放射科成都610041 首都医科大学附属北京同仁医院放射科北京100730 广州市第一人民医院介入医学中心哈尔滨医科大学附属肿瘤医院影像中心

本专家共识系统地叙述DSA检查前准备、手术基本操作、相关应急预案、常用应用技术、人体各个部位的DSA成像技术参数选用、图像质量控制、注意事项及必要的辐射防护等内容。重点叙述了DSA成像时, 人体各个部位正确的造影体位, 设备的成... 详细信息

本专家共识系统地叙述DSA检查前准备、手术基本操作、相关应急预案、常用应用技术、人体各个部位的DSA成像技术参数选用、图像质量控制、注意事项及必要的辐射防护等内容。重点叙述了DSA成像时, 人体各个部位正确的造影体位, 设备的成像技术参数选用, 对比剂的注射参数优选, 以及图像质量控制和注意事项。

关键词：血管造影术, 数字减影成像技术应用规范

Magnetic properties of Jiaxian red clay sequences from northern chinese Loess Plateau and its paleoclimatic significance

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Science china Earth Sciences 2005年第8期48卷 1234-1245页

作者： QIANG Xiaoke, AN Zhisheng, LI Huamei, CHANG Hong & SONG Yougui 1. SKLLQG, Institute of Earth Environment, chinese Academy of Sciences, Xi’an 710075, china 2. Guangzhou Institute of Geochemistry, chinese Academy of Sciences, Guangzhou 510640, china 1. chinese Academy of Sciences SKLLQG Institute of Earth Environment 710075 Xi’an China 2. chinese Academy of Sciences Guangzhou Institute of Geochemistry 510640 Guangzhou China

Detailed rock magnetism investigation of the Jiaxian red clay sequences indicated that there are common magnetic mineralogy properties in red clay and loess-paleosol sequences from the chinese Loess Plateau as well as the marked properties of themselves, magnetic min-erals mainly with magnetite, maghemite, hematite, and possibly limonite/goethite contributing to the magnetic behavior. Meanwhile, it is found that the strong paleosol in red clay sequences has a lower coercivity and higher content of ultra-fine ferrimagnetic grains than that of the weak pa-leosol, which is similar to loess and paleosol in upper Wucheng Loess sequences, and indicates that humid conditions and relatively strong pedogenesis play a significant role in the increase of ultra-fine magnetic minerals and transformation of the magnetic minerals. This suggests that, like Quaternary loess-paleosols, the change of characteristics of paleoclimatic conditions of the late Tertiary red clay deposits is fluctuant. In addition, the results of magnetic hysteresis properties show that the applied saturated field for samples from the Jiaxian red clay sequences is higher than that of the samples from eastern and southern chinese Loess Plateau. It is obviously shown that there exist more hard magnetic minerals and relatively weak biochemical processes in the Jiaxian red clay sequences on northern chinese Loess Plateau. We conclude that the paleocli-matic environment is different between northern and eastern/southern chinese Loess Plateau, and it should be more arid in northern chinese Loess Plateau.

关键词： northern chinese Loess Plateau, red clay, magnetic property, paleoclimatic significance.