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Ectopic hamartomatous thymoma： radiographic and clinicopathological features

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Chinese Medical Journal 2013年第4期126卷 798-799页

作者： CHENG Yu-shu zhou Zheng-rong WANG Jian Department of Diagnostic Radiology Department of Pathology Cancer Hospiatal Department of Oncology Shanghai Medical College Fudan University Shanghai 200032 China

Ectopic hamartomatous thymoma （EHT） is a very rare benign neoplasm. The histogenesis of EHT remains unclear. It was firstly described by Smith et aF in 1982 and was named EHT by Rosai et al2 in 1984. Since then dozens of cases have been reported. We herein report one case of EHT, describing the magnetic resonance （MR） findings correlated with its clinicopathological features, and reviewed literatures.

关键词： ectopic hamartomatous thymoma magnetic resonance imaging," neoplasm

Three-dimensional-fast imaging employing steady-state acquisition and T2-weighted fast spin-echo magnetic resonance sequences on visualization of cranial nerves Ⅲ-Ⅻ

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Chinese Medical Journal 2008年第3期121卷 276-279页

作者： CHENG Yu-shu zhou Zheng-rong PENG Wei-jun TANG Feng Department of Diagnostic Radiology Cancer Hospital FudanUniversity Shanghai 200032 China

Because of the small diameter and complex anatomic course of the cranial nerves except for the optic nerve, trigeminal nerve, facial nerve, and cochlear and vestibular nerve, other cranial nerves are difficult to be visualized in magnetic resonance imaging （MRI） scanning with conventional thickness （5-10 mm）. With the rapid development of MRI technology high spatial resolution, three-dimensional and two-dimensional magnetic resonance imaging technologies have been used in recent years in the observation of normal and abnormal cranial nerves, including three-dimensional constructive interference in steady state （3D CISS） sequence, three- dimensional magnetization-prepared rapid gradient-echo （3D MP-RAGE） sequence, three-dimensional fast inflow with steady-state precession （3D FISP） seohuence, and some fast spin-echo （FSE） sequences. - Threedimensional fast imaging employing steady-state acquisition （3D-FIESTA） is a fast three-dimensional steady-state imaging sequence with high spatial resolution and contrast between the organizational structures. And this sequence was reportedly used in the study on the diseases in the cerebellopontine angle; inner ear and posterior fossa tumors.7＇8 However, the reports about the value of 3D-FIESTA sequence for the visualization of normal cranial nerves are still rare.

关键词： cranial nerves magnetic resonance imaging pulse sequence

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Abiotic aerobic oxidation pathways of stibnite revealed by oxygen and sulfur isotope systematics of sulfate

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Journal of Environmental Sciences 2025年第1期147卷 83-92页

作者： Ningjie He shu Li Xiaoqian Li Yaning Tang Jiaxue Yang Jianwei zhou School of Environment Studies China University of GeosciencesWuhan 430074China Key Laboratory of Mine Ecological Effects and Systematic Restoration Ministry of Natural ResourcesBeijing 100081China State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution Ministry of Ecology and EnvironmentWuhan 430074China Institute of Geological Survey China University of GeosciencesWuhan 430074China

The environmental threat posed by stibnite is an important geoenvironmental issue of current *** better understand stibnite oxidation pathways,aerobic abiotic batch experiments were conducted in aqueous solution with varyingδ^(18)O_(H_(2)O) value at initial neutral pH for different lengths of time(15-300 days).The sulfate oxygen and sulfur isotope compositions as well as concentrations of sulfur and antimony species were *** sulfur isotope fractionation factor(△^(34)S_(SO4-stibnite))values decreased from 0.8‰to-2.1‰during the first 90 days,and increased to 2.6‰at the 180 days,indicating the dominated intermediate sulfur species such as S_(2)O_(3)^(2-),S0,and H_(2)S(g)involved in Sb2S3 oxidation *** incorporation of O into sulfate derived from O_(2)(~100%)indicated that the dissociated O_(2)was only directly adsorbed on the stibnite-S sites in the initial stage(0-90 days).The proportion of O incorporation into sulfate from water(27%-52%)increased in the late stage(90-300 days),which suggested the oxidation mechanism changed to hydroxyl attack on stibnite-S sites promoted by nearby adsorbed O_(2)on stibnite-Sb *** exchange of oxygen between sulfite and water may also contributed to the increase of water derived O into SO42-.The new insight of stibnite oxidation pathway contributes to the understanding of sulfide oxidation mechanism and helps to interpret field data.

关键词： Sulfide oxidation δ^(34)S_(SO4) δ^(18)O_(SO4) Oxygen source of sulfate

内江市1992～1999年食物中毒流行病学分析

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现代预防医学 2008年第18期35卷 3514-3516页

作者：周淑蓉内江市疾病预防控制中心

[目的]掌握食物中毒流行病学特征及其流行原因,为采取针对性防治对策提高科学依据。[方法]对1992～1999年内江市各地食物中毒报表与专题调查报告进行统计分析。[结果]1992～1999年共发生食物中毒20起,中毒467人,死亡7人,死亡病例以化学... 详细信息

[目的]掌握食物中毒流行病学特征及其流行原因,为采取针对性防治对策提高科学依据。[方法]对1992～1999年内江市各地食物中毒报表与专题调查报告进行统计分析。[结果]1992～1999年共发生食物中毒20起,中毒467人,死亡7人,死亡病例以化学性食物中毒(毒鼠强)为主。5～9月份为中毒高发月份。[结论]中毒原因以化学性毒物食物中毒最多,其次为细菌性食物中毒。通过加强食品卫生知识的宣传,改善防范食品污染及变质条件,提高人民大众食品卫生知识的整体水平,加强食物中毒报告,对学校、集体食堂等餐饮业实行食品卫生监督量化分级管理是控制和防范食物中毒的重要措施。

关键词：食物中毒流行病学特征

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公司社会责任与我国董事制度的重构

商业研究 2006年第5期 105-109页

作者：周述荣嘉兴学院法学院浙江嘉兴314001

公司社会责任理论认为,公司在追求股东利益最大化的同时,还应对其他利益相关者和社会承担相应的责任。我国公司法制定时对此没有考虑,通过对两大法系董事制度比较并针对我国的具体情况提出了“两分三三制”原则来组建董事会。

关键词：公司社会责任董事制度两分三三制

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乐至县健康人群麻疹抗体水平调查分析

现代预防医学 2008年第23期35卷 4688-4690页

作者：周淑蓉内江市疾病预防控制中心

[目的]为了了解健康人群对麻疹的抵抗力,掌握健康人群的免疫水平。[方法]取受检者耳垂血或指尖血0.2ml分离血清作麻疹血凝抑制试验测其抗体。[结果]受检人群抗体阳性率为93.54%,几何平均滴度(GMT)为1︰38.90,≥1︰16抗体滴度占80.26%,... 详细信息

[目的]为了了解健康人群对麻疹的抵抗力,掌握健康人群的免疫水平。[方法]取受检者耳垂血或指尖血0.2ml分离血清作麻疹血凝抑制试验测其抗体。[结果]受检人群抗体阳性率为93.54%,几何平均滴度(GMT)为1︰38.90,≥1︰16抗体滴度占80.26%,各年龄组抗体水平分布不同。[结论]通过调查不同区域、不同年龄组健康人群的抗体水平,城乡健康人群抗体水平差异无统计学意义,复种组抗体水平具有城乡差异,提示今后工作应提高有效接种率,重点抓好8月龄～2岁组儿童的基础免疫和复种工作,建立应对麻疹入侵的免疫屏障,实现控制和消除麻疹目标。

关键词：麻疹血凝抑制抗体

Different fates of Sb(Ⅲ)and Sb(V)during the formation of jarosite mediated by Acidithiobacillus ferrooxidans

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Journal of Environmental Sciences 2025年第1期147卷 342-358页

作者： Lu Chen Yirong Wang Hongchang Liu Yuhang zhou Zhenyuan Nie Jinlan Xia Wensheng shu School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Lab of Biometallurgy of Ministry of Education of China Central South UniversityChangsha 410083China School of Life Sciences South China Normal UniversityGuangzhou 510631China

Secondary iron-sulfate minerals such as jarosite,which are easily formed in acid mine drainage,play an important role in controlling metal *** this work,the typical iron-oxidizing bacterium Acidithiobacillus ferrooxidans ATCC 23270 was selected to synthesize jarosite in the presence of antimony ions,during which the solution behavior,synthetic product composition,and bacterial metabolism were *** results show that in the presence of Sb(V),Fe^(2+)was rapidly oxidized to Fe^(3+)by *** and Sb(V)had no obvious effect on the biooxidation of Fe^(2+)under the current experimental *** presence of Sb(Ⅲ)inhibited bacterial growth and Fe^(2+)*** the group with Sb(Ⅲ),products with amorphous phaseswere formed 72 hr later,whichwere mainly ferrous sulfate and pentavalent antimony oxide,and the amorphous precursor was finally transformed into a more stable crystal *** the group with Sb(V),the morphology and structure of jarosite were changed in comparison with those without *** biomineralization process was accompanied by the removal of 94%Sb(V)to form jarosite containing the Fe-Sb-O *** transcriptome analysis shows differential effects of Sb(Ⅲ)and Sb(V)on bacterial *** expression levels of functional genes related to cell components were much more downregulated for the group with Sb(Ⅲ)butmuch more regulated for that with Sb(V).Notably,cytochrome c and nitrogen fixation-relevant genes for the A.f_Fe^(2+)_Sb(Ⅲ)group were enhanced significantly,indicating their role in Sb(Ⅲ)*** study is of great value for the development of antimony pollution control and remediation technology.

关键词： Jarosite Acidithiobacillus ferrooxidans Bacterial iron oxidation Sb(Ⅲ)and Sb(V)transformation Transcriptome analysis

Least Square Estimation for Multiple Functional Linear Model with Autoregressive Errors

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Acta Mathematicae Applicatae Sinica 2025年第1期41卷 84-98页

作者： Meng WANG Ming-liang shu Jian-jun zhou Si-xin WU Min CHEN School of Management University of Science and Technology of ChinaHefei 230026China Academy of Mathematics and System Science Chinese Academy of SciencesBeijing 100190China Yunnan Key Laboratory of Statistical Modeling and Data Analysis Yunnan UniversityKunming 650091China

As an extension of linear regression in functional data analysis, functional linear regression has been studied by many researchers and applied in various fields. However, in many cases, data is collected sequentially over time, for example the financial series, so it is necessary to consider the autocorrelated structure of errors in functional regression background. To this end, this paper considers a multiple functional linear model with autoregressive errors. Based on the functional principal component analysis, we apply the least square procedure to estimate the functional coefficients and autoregression coefficients. Under some regular conditions, we establish the asymptotic properties of the proposed estimators. A simulation study is conducted to investigate the finite sample performance of our estimators. A real example on China's weather data is applied to illustrate the validity of our model.

关键词： multiple functional linear model autoregressive errors principal component analysis consistency

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Tandemly promoting the sulfur redox kinetics through low concentration mixed organodiselenide and organoditelluride in Ah-level high-energydensity Li-S batteries

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Science China Materials 2025年第1期68卷 207-216页

作者： Jiangqi zhou Chengyong shu Qianyu Zhang Wei Tang Yuping Wu School of Chemical Engineering and Technology Xi’an Jiaotong UniversityXi’an 710049China School of Energy and Environment Southeast UniversityNanjing 210096China College of Materials Science and Engineering Sichuan UniversityChengdu 610064China School of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China

Homogeneous redox mediation is efficient in alleviating the shuttling effect and slow redox kinetics of lithium polysulfides in lithium-sulfur ***,their perfect performance is not fulfilled owning to the fact that the multi-step transformation of lithium polysulfides requests the multifunctional active positions for the tandem *** on the redox comediation principles,a promoter of mixing organodiselenide and organoditelluride(mixed-Se/Te)was raised to induce tandem catalysis and boost the effective electrochemical conversion of lithium *** specifically,diphenyl diselenide facilitated the liquid-liquid and solid-liquid transformation between lithium polysulfides and sulfur,while diphenyl ditelluride improved the solid-liquid transformation concerning lithium sulfide ***,even under high sulfur loading of 6.5 mg cm^(−2) and low electrolyte/sulfur ratio of 5.88μL mg^(−1),the 10 mM low concentration mixed-Se/Te promoter offered a high discharge capacity of 6.6 mAh cm^(−2) and high rate performance of 4.1 mAh cm^(−2) at 0.5 ***,the assembled 1.5 Ah-level lithium-sulfur pouch cells provide an energy density of 332 Wh kg^(−1) at 0.05 C and good cycling *** research demonstrates the applicability of propelling continuous sulfur conversion reactions with detached active positions and is anticipated to stimulate deep molecular design of kinetic promoter to targeted energy-associated redox reactions.

关键词： lithium-sulfur batteries redox kinetics tandem catalysis organodiselenide organoditelluride