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Synthesis of proline fullerene derivative

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Chinese Science Bulletin 1997年第16期42卷 1360-1363页

作者： Zhao, YL Gan, LB Zhou, dj Luo, CP Huang, CH Jia, GC Wu, T Peking Univ State Key Lab Rare Earth Mat Chem & Applicat Beijing 100871 Peoples R China Hong Kong Univ Sci & Technol Hong Kong Hong Kong Peoples R China Inst Beijing Microchem Beijing 100091 Peoples R China

THE unique spherical nature and potential application of fullerene have attracted great attention. Their functionalization is in particular an active research field. Many methods are now available for the preparation of fullerene derivatives. The 1, 3-dipole cycloaddition of ylide to fullerene is one of the best known methods. We have recently reported that aminoacid esters can be added to C60 to form fulleropyrrolidine derivatives under photolysis. Our in-

关键词： fullerene pyrrolidine stereoisomer.

EFFECTS OF SUBSTITUENTS IN ETHENYL ANILINE DERIVATIVE WITH DONOR AND ACCEPTOR GROUP ON PHOTOVOLTAIC BEHAVIOR

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Chinese Chemical Letters 1995年第6期6卷 523-526页

作者： Wang, BH Wang, dj Ma, SQ Cui, Y Zhang, D Zhang, BW Li, TJ Jilin Univ Dept Chem Changchun 130023 Peoples R China Acad Sinica Inst Photog Chem Beijing 100101 Peoples R China

We report here the photovoltaic behavior of a series of substituted ethenyl aniline derivatives containing donor and acceptor groups. This work indicates that the photovoltaic response is closely correlated with the substituents. The molecular structure/photovoltaic response relationship is presented and discussed in terms of the charge separation in an intramolecular charge transfer compound.

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MRI预测急性脑梗死后出血的价值

中华放射学杂志 2007年第10期41卷 1053-1056页

作者：郭岗吴仁华 Mikulis dj 厦门市第二医院放射科 361012 汕头大学医学院医学影像学教研室多伦多大学医学院西部医院神经放射科

目的探讨急性脑梗死患者 MR 早期增强 T_1WI 中脑实质强化及大脑中动脉高信号(HMCA)征与继发性脑出血(HT)的关系。方法回顾性分析24例发病6.0 h 内[平均(4.3±1.4)h]的急性脑梗死患者首次 T_1WI 及随后1周内复查的 MRI和(或)CT 资料,了... 详细信息

目的探讨急性脑梗死患者 MR 早期增强 T_1WI 中脑实质强化及大脑中动脉高信号(HMCA)征与继发性脑出血(HT)的关系。方法回顾性分析24例发病6.0 h 内[平均(4.3±1.4)h]的急性脑梗死患者首次 T_1WI 及随后1周内复查的 MRI和(或)CT 资料,了解首次增强 T_1WI脑实质强化和 HMCA 征与 HT 的关系。早期脑实质强化为脑梗死6.0 h 内缺血的脑组织区域在增强T_1WI 出现高信号;HMCA 征为增强 T_1WI 上大脑中动脉增粗(与对侧相比)、出现边缘模糊的高信号。结果 24例患者中10例发展为 HT(出血组),其中6例首次 T_1WI 可见脑实质强化,5例出现 HMCA征;14例未出现 HT(无出血组),均未发现脑实质强化和(或)HMCA 征。2组相比,T_1WI 脑实质强化、HMCA 征出现率差异均有统计学意义(P 值均<0.01)。结论 T_1WI 早期脑实质强化和 HMCA征有可能预测急性脑梗死后 HT。

关键词：脑血管意外颅内出血磁共振成像

SYNTHESIS　OF　FULLERENE　PYRROLIDINES　CONTAINING　SUBSTITUTED　PHENYL　GROUPS　THROUGH　AZOMETHINE　YLIDE　ADDITION

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Chinese Chemical Letters 1995年第12期6卷 1033-1036页

作者： Zhou, dj Gan, LB Tan, HS Luo, CP Huang, CH Pan, JQ Lu, MJ Wu, Y Beijing Univ State Key Lab Rare Earth Mat Chem & Applicat Beijing 100871 Peoples R China Beijing Univ Dept Chem Ctr Anal & Measurement Beijing 100871 Peoples R China Beijing Inst Microchem Beijing 100091 Peoples R China

Terephthalaldehyde reacts with sarcosine to form azomethine ylide, which adds to C60 according to a[3+2] cycloaddition process to form fullerene pyrrolidine. The same addition reaction can also be applied to other sub...

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Socio-Medical and Demographic Factors Associated with Perinatal Mortality in a Southern Benin Health Zone Hospital in 2020: A Case-Control Study

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Open Journal of Preventive Medicine 2023年第8期13卷 227-238页

作者： Charles Sossa Jerome Lamidhi Salami Vicentia Akpédjé Gladis Cadete Vignon Bedie Yolaine Glele-Ahanhanzo Patrick Charles Makoutode Badirou Aguemon Health Promotion Department Regional Institute of Public Health University of Abomey-Calavi Ouidah Benin Health Policy and Systems Department Regional Institute of Public Health University of Abomey-Calavi Ouidah Benin Department of Public Health Faculty of Health Sciences University of Abomey-Calavi Cotonou Benin Department of Epidemiology and Biostatistics Regional Institute of Public Health University of Abomey-Calavi Ouidah Benin

Background: Perinatal mortality remains a major public health concern in developing countries such as Benin. To better steer response interventions, this study was carried out in southern Benin with the aim of identifying the demographic and socio-medical factors linked to perinatal mortality. Methods: The case-control study, held from January 1 to December 31, 2020, covered 154 targets, including 77 cases of neonates deceased within the perinatal period and 77 live-born control neonates selected on a one-for-one basis. Univariate analysis using the McNemar test and logistic regression were used to identify risk factors for perinatal mortality, at a 5% threshold of significance. Results: Sahoué/mina ethnicities, only associated socio-demographic characteristic, increased the risk of perinatal death by 2.47 times (p = 0.008). Mother’s age, education, occupation, marital status, and household size were not associated (p > 0.05). Risk of death was increased 2.5 times when the mother was referred (p = 0.007), 3.3 times when she came from a hard-to-reach locality (p Conclusion: Although attention must also be paid to referral and access to care, this study identifies antenatal consultation as the main target of any intervention to reduce perinatal mortality.

关键词： Perinatal Mortality Associated Factors Antenatal Care Benin

A model for the chain-to-plane charge transfer in YBa_2Cu_3O_(6+x)

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Chinese Physics B 2012年第11期21卷 448-452页

作者： V.M.Matic N.dj.Lazarov M.Milic Laboratory of Theoretical Physics Institute of Nuclear Sciences"Vinca"Belgrade University

A model for the chain-to-plane charge transfer is proposed to account for the two plateaus, at 60 K and at 90 K, of the Tc（x） characteristics of the YBa2Cu3O6＋x high-Tc superconductor. It is assumed that the number of holes transferred from a CuO chain of length l to two nearby CuO2 sheets is proportional to l （that is, to the number of oxygen atoms in the chain）, if the chain length is greater than, or equal to, a certain critical chain length, lcr, that is required to trigger the charge transfer process. No holes are assumed to have been transferred from chains of length l〈 lcr. The calculated Tc（x） dependence is found to be in excellent agreement with the experimentally reported Tc（x）. The critical chain length parameter is estimated to be equal to lcr = 11 （eleven oxygen atoms in a chain）, which is a greater value than that obtained in the previously proposed model for the chain-to-plane charge transfer （lcr = 4）. The results obtained out of the proposed model are briefly discussed.

关键词： YBCO oxygen ordering critical temperature doping

Acute Renal Failure Secondary to Paracetamol Intoxication: A Case Report

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Open Journal of Nephrology 2022年第3期12卷 235-240页

作者： Moctar Coulibaly Magara Samaké Konaré Samba Fofana Aboubacar Sidiki Ossil Ampion Marc Batcho Jimmy Mansour Janette Seydou Sy Hamadoun Yattara Atabième Kodio djénéba Maiga Sah Dit Baba Coulibaly djénèba Diallo Aboudou M. Dolo Moustapha Tangara Nouhoum Coulibaly Kalilou Coulibaly Ibrahima Koné Saharé Fongoro Nephrology Unit of Mali GAVARDO Hospital in Sebénicoro Bamako Mali Nephrology Unit of the Fousseyni DAOU Hospital Kayes Mali National Center for Scientific and Technological Research (CNRST) Bamako Mali Nephrology Department of the Soissons Hospital Soissons France Nephrology and Hemodialysis Department of the UHC du Point G Bamako Mali Faculty of Medicine of Bamako Bamako Mali Nephrology Unit of Sikasso Hospital Sikasso Mali Nephrology Unit of Somino DOLO Hospital Mopti Mali

Renal damage secondary to paracetamol intoxication is rare, estimated between 1% and 2% of intoxication cases. Its pathophysiology is still debated, the clinical involvement consisting in an acute tubular necrosis with a good prognosis if it is rapidly treated. Renal damage can sometimes occur without prior hepatic damage, and the onset of renal manifestations is generally between the 2nd and 7th day after taking paracetamol. If its management remains exclusively symptomatic, its late onset can sometimes lead to serious metabolic complications. It is therefore important to systematically monitor renal function following paracetamol drug intoxication. We report the case of a 60-year-old male subject hospitalized for the management of voluntary drug intoxication (VDI) with paracetamol complicated by acute hepatocellular failure and acute renal failure. His management required extrarenal purification (hemodialysis) and the evolution was favorable with recovery ad integrumof renal function. Conclusion: Although less known and of unelucidated physiopathology, nephrotoxicity secondary to voluntary drug intoxication with paracetamol is a reality and can lead in extreme cases to the use of extrarenal purification technique (hemodialysis).

关键词： Acute Renal Failure Paracetamol Intoxication Hemodialysis

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氡的细胞放射生物学

国外医学（放射医学核医学分册） 1993年第5期17卷 198-202页

作者： Brermer dj 秦岚

氡的危险度估算主要源于矿工的流行病学调查资料,若将它用于居室内氡的危险分析还存在诸多问题。细胞放射生物学提供了研究这些问题如:从低LET效应推测高LET效应;不同能量α粒子的相对效应;单个α粒子与多发α粒子对靶细胞的效应;剂量... 详细信息

氡的危险度估算主要源于矿工的流行病学调查资料,若将它用于居室内氡的危险分析还存在诸多问题。细胞放射生物学提供了研究这些问题如:从低LET效应推测高LET效应;不同能量α粒子的相对效应;单个α粒子与多发α粒子对靶细胞的效应;剂量率效应以及烟草与辐射的协同作用等实验方法和进一步的研究资料。

关键词：氡致癌物矿工放射生物学

Si／Si_（1－x）Ge_x应变层超晶格折叠声子能隙的精细测量

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Journal of Semiconductors 1994年第6期15卷 373-382页

作者：张鹏翔 Lock.,dj 中国科学院物理研究所

采用高分辨喇曼光谱仪测量了Ｓｉ／Ｓｉ_（１－ｘ）Ｇｅ_ｘ应变层超晶格中折叠纵向声学支（ＦＬＡ）声子的非弹性散射谱．通过改变激光波长得到了拆叠布里渊区边界附近ＦＬＡ声子的色散曲线，并第一次获得了四级ＦＬＡ声子带隙．将ＲＲ... 详细信息

采用高分辨喇曼光谱仪测量了Ｓｉ／Ｓｉ_（１－ｘ）Ｇｅ_ｘ应变层超晶格中折叠纵向声学支（ＦＬＡ）声子的非弹性散射谱．通过改变激光波长得到了拆叠布里渊区边界附近ＦＬＡ声子的色散曲线，并第一次获得了四级ＦＬＡ声子带隙．将ＲＲｙｔｏｖ理论和精确测量结果进行了比较，讨论了Ｒｙｔｏｖ理论的应用范围及限制，发现在拆叠布里渊区边界上Ｋｙｔｏｖ理论与实验有明显分歧．高分辨喇曼谱还揭示出ＦＬＡ声子峰的精细结构和系列卫星线，讨论了产生这些精细结构的机制以及用于材料标识的可能性．

关键词：应变层超晶格声子 Si/Si1-xGex