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乳腺背景实质强化与乳腺癌不同分子亚型相关性研究

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医学信息 2024年第7期37卷 78-82页

作者：贾敏王龙胜安徽医科大学第二附属医院影像科安徽医科大学附属六安医院磁共振室

目的探讨乳腺背景实质强化(BPE)与乳腺癌不同分子亚型的相关性。方法回顾性分析2019年10月-2023年3月就诊于安徽医科大学附属六安医院的57例乳腺癌患者动态增强磁共振第一期BPE水平，依据第五版乳腺影像与数据系统(BIRADS)将BPE分为4... 详细信息

目的探讨乳腺背景实质强化(BPE)与乳腺癌不同分子亚型的相关性。方法回顾性分析2019年10月-2023年3月就诊于安徽医科大学附属六安医院的57例乳腺癌患者动态增强磁共振第一期BPE水平，依据第五版乳腺影像与数据系统(BIRADS)将BPE分为4型，即a型(极少强化)、b型(轻度强化)、c型(中度强化)、d型(显著强化)。根据免疫组化标志物雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子受体-2(HER-2)、细胞增殖的相关抗原Ki-67表达结果，将乳腺癌分为4种亚型：Luminal A型、Luminal B型、HER-2过表达型及三阴性型。比较BPE水平与乳腺癌不同免疫组化标志物及分子亚型间差异，分析BPE水平与年龄、绝经状态的相关性。结果 57例乳腺癌患者中，Luminal A型17例，Luminal B型21例，HER-2过表达型12例，三阴性7例。BPE水平与年龄呈负相关(r=-0.299,P=0.024)，与绝经状态呈负相关(r=-0.398,P=0.002)；乳腺癌免疫组化标志物PR与定性BPE有关(P=0.043)，乳腺癌免疫组化标志物ER、HER-2、Ki-67及四种不同分子亚型与定性BPE无关。结论 BPE有可能作为乳腺癌预后评估的影像学标志，为乳腺癌的治疗提供指导。

关键词：乳腺癌背景实质强化分子亚型

Soil Enzyme Activities with Greenhouse Subsurface Irrigation

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Pedosphere 2006年第4期16卷 512-518页

作者： ZHANG Yu-long wang Yao-sheng College of Land and Environmental Sciences Shenyang Agricultural University Shenyang 110161 （China）

Various environmental conditions determine soil enzyme activities, which are important indicators for changes of soil microbial activity, soil fertility, and land quality. The effect of subsurface irrigation scheduling on activities of three soil enzymes (phosphatase, urease, and catalase) was studied at five depths (0-10, 10-20, 20-30, 30-40, and 40-60 cm) of a tomato greenhouse soil. Irrigation was scheduled when soil water condition reached the maximum allowable depletion (MAD) designed for different treatments (-10, -16,-25,-40, and-63 kPa). Results showed that soil enzyme activities had significant responses to the irrigation scheduling during the period of subsurface irrigation. The neutral phosphatase activity and the catalase activity were found to generally increase with more frequent irrigation (MAD of -10 and -16 kPa). This suggested that a higher level of water content favored an increase in activity of these two enzymes. In contrast, the urease activity decreased under irrigation, with less effect for MAD of -40 and -63 kPa. This implied that relatively wet soil conditions were conducive to retention of urea N, but relatively dry soil conditions could result in increasing loss of urea N. Further, this study revealed that soil enzyme activities could be alternative natural bio-sensors for the effect of irrigation on soil biochemical reactions and could help optimize irrigation management of greenhouse crop production.

关键词： irrigation scheduling soil enzyme activity subsurface irrigation tomato

Synthesis,Structure and Characterization of Bis(ethylene-1,2-dithiolate)(μ_(2)-di-2-pyridyl-ketone p-phenyldiamine-N,N')-tin(IV)Dichloromethane

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Chinese Journal of Structural Chemistry 2005年第12期24卷 1355-1358页

作者： wang long-sheng ZHANG Jian-Jun HU sheng-Min FU Rui-Biao WU Xin-Tao State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterThe Chinese Academy of SciencesFuzhouFujian 350002China

A new mononuclear tin（Ⅳ） complex [Sn（edt）2L]·CH2Cl2 （edt = ethane-1,2-dithiolate, L = di-2-pyridyl-ketone p-phenyldiamine） was obtained by a one-pot reaction which involves in situ formation of a new Schiff-base ligand L. The title compound （C22H24C12N484Sn） crystallizes in monoclinic, space group P211n with a = 13.438（1）, b = 12.2657（10）, c = 17.1477（13） k,, β = 99.323（ 1 ）°, V = 2789.1 （4） A, Z = 4, Mr = 662.28, Dc= 1.577g/cm^3, F（000） = 1328,μ= 1.426 mm^-1, the final R = 0.0450 and wR = 0.1077 for 3868 observed reflections （1 〉 2σ））. In the title compound, Sn^4＋ ion is six-coordinated with four sulfur atoms of two edt ligands and two nitrogen atoms of the ligand di-2-pyridyl-ketone p-phenyldiamine to form a highly distorted octahedron.

关键词： tin p-phenyldiamine ethene-1,2-thiolate di-2-pyridyl-ketone Schiff-base

Stable isotopes and chloride ion of precipitation events in the northeastern Tibetan Plateau, China

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Journal of Mountain Science 2021年第4期18卷 834-846页

作者： CUI Bu-li LI Dong-sheng JIANG Bao-fu wang Ying wang Ya-xuan wang long-sheng LI Xiao-yan State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China School of Resources and Environmental Engineering Ludong UniversityYantai 264025China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China

Stable isotopes and chloride ion of precipitation are ideal environmental tracers to explain and reveal the formation and evolution mechanisms of water bodies. It is crucial to investigate the stable isotopes and chloride in precipitation events in the northeastern part of the Tibetan Plateau(NETP) due to the limitation of available data. This study sampled each event of precipitation during the period from July 2018 to June 2019 and the monthly dustfall in the NETP to investigate the temporal changes of stable isotopes and chloride in precipitation, and to reveal the moisture source of precipitation over the NETP using a back trajectory model. Results showed that the δ^(2)H values of precipitation ranged from-183.51‰ to 17.75‰, and the δ^(18)O values ranged from-25.18‰ to 0.48‰. The slope of the Local Meteoric Water Line was slightly lower than 8 due to the effect of belowcloud secondary evaporation on the precipitation process. Most d-excess values were higher than 10‰ because moisture recycled from the continent and Qinghai Lake surface mixed with precipitation. The chloride in precipitation accounted for 86.5% of the annual total deposition mass of chloride(1329.64 mg/m2), indicating that precipitation was the main source of chloride in the NETP. The temperature and amount effects of stable isotope in the precipitation were obvious in the NETP. The precipitation was predominantly derived from the Westerly Circulation from September through May and the East Asian Monsoon from June to August, with precipitation amounts of 246.5 mm and 178.0 mm, respectively, indicating that the precipitation over the NETP brought by the Westerly Circulation was more than that brought by the East Asian Monsoon. The air mass over the NETP transited in late May and early September, and a slight change in transition period would mainly be related to the intensity of the East Asian Monsoon, which is strongly influenced by El Ni?o-Southern Oscillation. These results provide not only bas

关键词： Stable isotope Chloride ion Precipitation Moisture source Northeastern Tibetan Plateau

Synthesis and Crystal Structure of a Novel Heptanuclear Ruthenium- and Sodium-containing Polyoxomolybdate [{Na(H_2O)_3}_2{Ru(dmso)_3}_2(MoO_4)_3]·_3H_2O

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Chinese Journal of Structural Chemistry 2006年第7期25卷 783-788页

作者： HUANG Xi-He XIANG sheng-Chang FU Rui-Biao sheng Tian-Lu ZHANG Jian-Jun LI Ya-Min wang long-sheng WU Xin-Tao State Key Laboratory of Structural Chemistry Fujian Institute of Research on theStructure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China

The title compound, [{Na（H2O）3}2lRu（dmso）3}2（MoO4）3]·3H2O, has been obtained by the reaction of Na2MoO4·2H2O with cis-Ru（dmso）4Cl2 in aqueous solution. Its crystal structure was determined by single-crystal X-ray diffraction method. The crystal crystallizes in the triclinic system, space group PI^- with a = 12.3333（3）, b = 12.6289（3）, c = 32.0284（14） A, α = 79.873（7）, β= 87.549（9）, γ = 64.500（4）°, V = 4429.5（2） A^3, Z = 4, Mr = 1358.85, Dc = 2.038 g/cm^3, F（000） = 2696 and μ = 1.874 mm^-1. The compound contains a novel pentanuclear triangle bipyramidal core, [{ Ru（dmso）3 } 2（MoO4）3]^2-, which consists of two { Ru（dmso）3 } ^2＋ fragments and three {μ2-MoO4}^2- units. Furthermore, the dmso ligands bridge the pentanuclear [Ru2Mo3] core and two [Na（H2O）3]^＋ fragments together, forming a neutral heptanuclear ruthenium- and sodiumcontaining polyoxomolybdate.

关键词： synthesis crystal structure ruthenium sodium polyoxomolybdate

Three New Silver Alkylenediphosphonates with Pillar-like Open-frameworks

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Chinese Journal of Structural Chemistry 2005年第11期24卷 1231-1241页

作者： FU Rui-Biao HU sheng-Min ZHANG Hui-Shuang wang long-sheng LI Ya-Min HUANG Xi-He WU Xin-Tao State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Science Fuzhou Fujian 350002 China

Three new silver alkylenediphosphonates, [Ag2（HO3PCH2CH2CH2CH2PO3H）] 1, [Ag4（O3PCH2CH2CH2CH2PO3）] 2 and [Ag4（O3PCH2CH2CH2PO3（H2O）] 3, have been hydrotherreally synthesized and characterized by X-ray single-crystal and powder diffraction, elemental analyses, IR and thermogravimetric analyses （TGA）. The structures of these compounds are all threedimensional pillar-like open-frameworks with 18-membered [Ag2O4P4C8] channels for compound 1 and 2, and 16-member [Ag2O4P4C6] channels for compound 3. Both 2 and 3 contain interesting twodimensional Ag（Ⅰ） networks based on Ag...Ag interactions. 1,4-Butylene- and 1,3-propylene diphosphonate groups of 2 and 3 bond the first and second maximum metal atoms among metal organodiphosphonates with linking sixteen and fifteen silver（Ⅰ） atoms, respectively. In addition, the coordinated water molecules of 3 can be reversibly removed and recovered.

关键词： hydrothermal syntheses silver diphosphonate pillar-like single crystal

Syntheses,Characterizations and Crystal Structures of (E)-2-Methyl-1,3-diphenylisothiouronium Iodide and 1,3-Dibenzyl-2-methylisothiouronium Iodide

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Chinese Journal of Structural Chemistry 2015年第5期34卷 695-702页

作者： XIONG Xin-Xing LI Di ZHOU Jun-Li XU Bao-Ming HUANG Qin wang long-sheng Institute of POM-based Materials School of Chemistry and Chemical EngineeringHubei University of Technology

Two thiouronium iodide salts,（E）-2-methyl-1,3-diphenylisothiouronium iodide（1） and 1,3-dibenzyl-2-methylisothiouronium iodide（2）,were synthesized and characterized by single-crystal X-ray diffraction,1H NMR,IR,UV-vis and luminescence ***-crystal X-ray diffraction reveals that compound 1 crystallizes in monoclinic system,P21/n space group with a = 11.273（2）,b = 10.318（2）,c = 12.962（3） A,β = 99.03（3）°,V = 1489.0（5） A^3 and Z = 4;compound 2 crystallizes in monoclinic system,C2/c space group with a = 11.706（2）,b = 14.119（3）,c = 20.930（4） A,β = 103.84（3）°,V = 3358.8（12） A^3 and Z = *** thiouroniums of both compounds are Y-shaped planar structures to form a cross-conjugated *** averaged bond lengths of C-N and C-S indicate the presence of ＂Y＂ *** researches on UV-vis and luminescence spectra of compounds 1 and 2 indicate that they can form inclusion complex with β-CD in the aqueous solution.

关键词： organosulfur thiouronium "Y" aromaticity hydrogen bond β-CD

Energy flux and waveform of gravitational wave generated by coalescing slow-spinning binary system in effective one-body theory

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Science China(Physics,Mechanics & Astronomy) 2024年第9期67卷 73-83页

作者： Weike Deng sheng long Jiliang Jing Department of Physics Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Educationand Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China Center for Gravitation and Cosmology College of Physical Science and TechnologyYangzhou UniversityYangzhou 225009China

We extend our research on the energy flux and waveform characteristics of gravitational waves generated by merging nonspinning binary black holes through self-consistent effective one-body theory to include binary systems with slowly spinning black ***,we decompose the equation for the null tetrad component of the gravitationally perturbed Weyl tensorψ_4~B into radial and angular parts,leveraging the second-order approximation of the rotation parameter ***,we derive an analytical solution for the radial equation and observe that our results are contingent upon the parameters a_(2),a_(3),and a,which represent the second-and third-order correction parameters,***,we calculate the energy flux,the radiation-reaction force and the waveform for the“plus”and“cross”modes of the gravitational waves generated by merging slowly spinning binary black holes.

关键词： post-Minkowskian approximation effective-one-body theory gravitational waveform template

Energy flux and waveforms by coalescing spinless binary system in effective one-body theory

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 58-68页

作者： sheng long Weike Deng Jiliang Jing Department of Physics Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of EducationSynergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China Center for Gravitation and Cosmology College of Physical Science and TechnologyYangzhou UniversityYangzhou 225009China

We present a study on the energy radiation rate and waveforms of the gravitational wave generated by coalescing spinless binary systems up to the third post-Minkowskian approximation in the effective one-body *** derive an analytical expansion of the null tetrad components of the gravitational perturbed Weyl tensorΨ4in the effective spacetime,we utilize the method proposed by Sasaki et *** this investigation,we discover more general integral formulas that provide a theoretical framework for computing the results in any ***,we successfully compute the energy radiation rate and waveforms of the gravitational wave,which include the results of the Schwarzschild case and the correction terms resulting from the dimensionless parameters a2and a3in the effective metric.

关键词： post-Minkowskian approximation effective one-body theory gravitational waveform template