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Intrahepatic portal venous systems in adult patients with cavernous transformation of portal vein: Imaging features and a new classification

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Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 481-486页

作者： Xin Huang Qian Lu Yue-Wei Zhang Lin Zhang Zhi-zhong ren Xiao-Wei Yang Ying Liu Rui Tang Hepatopancreatobiliary Center Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China

Background: Cavernous transformation of the portal vein(CTPV) due to portal vein obstruction is a rare vascular anomaly defined as the formation of multiple collateral vessels in the hepatic hilum. This study aimed to investigate the imaging features of intrahepatic portal vein in adult patients with CTPV and establish the relationship between the manifestations of intrahepatic portal vein and the progression of CTPV. Methods: We retrospectively analyzed 14 CTPV patients in Beijing Tsinghua Changgung Hospital. All patients underwent both direct portal venography(DPV) and computed tomography angiography(CTA) to reveal the manifestations of the portal venous system. The vessels measured included the left portal vein(LPV), right portal vein(RPV), main portal vein(MPV) and the portal vein bifurcation(PVB). Results: Nine males and 5 females, with a median age of 40.5 years, were included in the study. No significant difference was found in the diameters of the LPV or RPV measured by DPV and CTA. The visualization in terms of LPV, RPV and PVB measured by DPV was higher than that by CTA. There was a significant association between LPV/RPV and PVB/MPV in term of visibility revealed with DPV( P = 0.01), while this association was not observed with CTA. According to the imaging features of the portal vein measured by DPV, CTPV was classified into three categories to facilitate the diagnosis and treatment. Conclusions: DPV was more accurate than CTA for revealing the course of the intrahepatic portal vein in patients with CTPV. The classification of CTPV, that originated from the imaging features of the portal vein revealed by DPV, may provide a new perspective for the diagnosis and treatment of CTPV.

关键词： Cavernous transformation of the portal vein Classification Direct portal venography Intrahepatic portal venous system

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中国式现代化视域下民事诉权的反思与重塑

中国法学 2024年第4期 208-228页

作者：任重清华大学法学院

诉权是我国民事诉讼现代化的原点和主线。1982年《民事诉讼法(试行)》建立起扁平化的起诉条件,这不仅动摇了起诉权的权利属性,使民事诉权向私法诉权模式偏移,而且在结果上筑高起诉门槛,引发“起诉难”。2014年《中共中央关于全面推进依... 详细信息

诉权是我国民事诉讼现代化的原点和主线。1982年《民事诉讼法(试行)》建立起扁平化的起诉条件,这不仅动摇了起诉权的权利属性,使民事诉权向私法诉权模式偏移,而且在结果上筑高起诉门槛,引发“起诉难”。2014年《中共中央关于全面推进依法治国若干重大问题的决定》为民事诉权的深刻变革提供了基本思路与科学方法,即将扁平化的起诉条件重塑为阶层化的诉权要件。起诉行为成立要件(第一层)和起诉权构成要件(第二层)实质简化了起诉条件,大幅降低起诉门槛,也为立案登记制改革的再深化提供了理论基础;判决请求权构成要件(第三层)和胜诉权构成要件(第四层)彰显出开庭审理对诉权保障的决定性作用。为有效应对案件数量激增和诉权滥用问题,还应建立健全配套机制,以实现民事诉权的中国式现代化。

关键词：民事诉权中国式现代化起诉权胜诉权立案登记制

N-acetylcysteine ameliorates erectile dysfunction in rats with hyperlipidemia by inhibiting oxidative stress and corpus cavernosum smooth muscle cells phenotypic modulation

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Asian Journal of Andrology 2024年第1期26卷 99-106页

作者： Wei Ding Jun-Hong Fan Li-ren zhong Nan-Xiong Wang Lu-Hao Liu Hai-Bo Zhang Li Wang Ming-Qiang Wang Bing-Lin He An-Yang Wei Department of Urology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang 550002China Department of Urology Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhou 510000China Department of Urology Nanfang HospitalSouthern Medical UniversityGuangzhou 510000China Department of Urology Shenzhen Immigration Inspection General Station HospitalShenzhen 518000China Department of Organ Transplantation The Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang 550002China

Hyperlipidemia is a major risk factor for erectile dysfunction(ED).Oxidative stress and phenotypic modulation of corpus cavernosum smooth muscle cells(CcSMCs)are the key pathological factors of ED.N-acetylcysteine(NAC)can inhibit oxidative stress;however,whether NAc can alleviate pathological variations in the corpus cavernosum and promote erectile function recovery in hyperlipidemic rats remains unclear.A hyperlipidemia model was established using 27 eight-week-old male Sprague-Dawley(SD)rats fed a high-fat and high-cholesterol diet(hyperlipidemic rats,HR).In addition,9 male SD rats were fed a normal diet to serve as controls(NC).HR rats were divided into three groups:HR,HR+normal saline(NS),and HR+NAC(n=9 for each group;NS or NAc intraperitoneal injections were administered daily for 16 weeks).Subsequently,the lipid profiles,erectile function,oxidative stress,phenotypic modulation markers of ccsMCs,and tissue histology were *** experimental results revealed that erectile function was significantly impaired in the HR and HR+NS groups,but enhanced in the HR+NAC *** lipid levels,over-activated oxidative stress,and multi-organ lesions observed in the HR and HR+NS groups were improved in the HR+NAC ***,the HR group showed significant phenotypic modulation of CCSMCs,which was also inhibited by NAC *** report focuses on the therapeutic effect of NAc in restoring erectile function using a hyperlipidemic rat model by preventing CcSMC phenotypic modulationand attenuating oxidativestress.

关键词： erectile dysfunction hyperlipidemia N-acetylcysteine oxidative stress henotypic modulation

Millisecond dynamics of colloidal suspension studied by X-ray photon correlation spectroscopy at the Shanghai Synchrotron Radiation Facility

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Nuclear Science and Techniques 2024年第1期35卷 1-9页

作者： Chen-Hui Cui Zi-Mu Zhou Lin-Feng Wei Song-Lin Li Feng Tian Xiu-Hong Li Zhi Guo Yi-Hui Xu Huai-Dong Jiang ren-zhong Tai Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Center for Transformative Science ShanghaiTech UniversityShanghai 201210China

X-ray photon correlation spectroscopy(XPCS)has emerged as a powerful tool for probing the nanoscale dynamics of soft condensed matter and strongly correlated materials owing to its high spatial resolution and penetration *** technique requires high brilliance and beam coherence,which are not directly available at modern synchrotron beamlines in *** facilitate future XPCS experiments,we modified the optical setup of the newly commissioned BL10U1 USAXS beamline at the Shanghai Synchrotron Radiation Facility(SSRF).Subsequently,we performed XPCS measurements on silica suspensions in glycerol,which were opaque owing to their high *** were collected using a high frame rate area detector.A comprehensive analysis was performed,yielding correlation functions and several key dynamic *** the results were consistent with the theory of Brownian motion and demonstrated the feasibility of XPCS at ***,by carefully optimizing the setup and analyzing the algorithms,we achieved a time resolution of 2 ms,which enabled the characterization of millisecond dynamics in opaque systems.

关键词： XPCS SSRF Silica suspension Glycerol Brownian motion Millisecond dynamics

VPI:Vehicle Programming Interface for Vehicle Computing

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Journal of Computer Science & Technology 2024年第1期39卷 22-44页

作者：吴宝福仲任王昱心万健张纪林施巍松 School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou 310018China Department of Computer Science Wayne State UniversityDetroitMI 48202U.S.A Department of Computer and Information Sciences University of DelawareNewarkDE 19716U.S.A

The emergence of software-defined vehicles(SDVs),combined with autonomous driving technologies,has en-abled a new era of vehicle computing(VC),where vehicles serve as a mobile computing ***,the interdisci-plinary complexities of automotive systems and diverse technological requirements make developing applications for au-tonomous vehicles *** simplify the development of applications running on SDVs,we propose a comprehen-sive suite of vehicle programming interfaces(VPIs).In this study,we rigorously explore the nuanced requirements for ap-plication development within the realm of VC,centering our analysis on the architectural intricacies of the Open Vehicu-lar Data Analytics Platform(OpenVDAP).We then detail our creation of a comprehensive suite of standardized VPIs,spanning five critical categories:Hardware,Data,Computation,Service,and Management,to address these evolving pro-gramming *** validate the design of VPIs,we conduct experiments using the indoor autonomous vehicle,Ze-bra,and develop the OpenVDAP prototype *** comparing it with the industry-influential AUTOSAR interface,our VPIs demonstrate significant enhancements in programming efficiency,marking an important advancement in the field of SDV application *** also show a case study and evaluate its *** work highlights that VPIs significantly enhance the efficiency of developing applications on *** meet both current and future technologi-cal demands and propel the software-defined automotive industry toward a more interconnected and intelligent future.

关键词： software-defined vehicle(SDV) vehicle computing(VC) vehicle programming interface(VPI) au-tonomous system

非认知能力对城乡户籍人口收入的异质性影响——基于中国家庭追踪调查数据(CFPS)的实证研究

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教育与经济 2024年第2期40卷 79-88页

作者：李治任重李骏子华中师范大学教育学院武汉430079 英国格拉斯哥大学教育学院英国苏格兰格拉斯哥市G128QQ

使用2018年的中国家庭追踪调查数据(CFPS),选取大五人格量表测量非认知能力,综合利用普通最小二乘法、条件分位数回归、无条件分位数回归以及工具变量法,实证检验了非认知能力对城乡户籍人口收入的异质性影响,研究发现:城乡户籍人口非... 详细信息

使用2018年的中国家庭追踪调查数据(CFPS),选取大五人格量表测量非认知能力,综合利用普通最小二乘法、条件分位数回归、无条件分位数回归以及工具变量法,实证检验了非认知能力对城乡户籍人口收入的异质性影响,研究发现:城乡户籍人口非认知能力的收入回报率存在明显差异,相较于城市户籍人口,非认知能力对农村户籍人口收入的影响更大,另外,非认知能力对农村户籍低收入者的影响大于农村户籍高收入者。因此,应当充分发挥教育在解决相对贫困、阻断贫困代际传递中的关键作用,充分发挥财政补偿职能,强化乡村教育中非认知能力的培养。具体来说,应重视农村户籍低收入者非认知能力的培养与提升;将农村学生非认知能力培养贯穿于整个乡村教育过程中;在家庭教育中加强非认知能力培养。

关键词：非认知能力城乡户籍人口收入相对贫困共同富裕

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掺杂Li^(+)的NaGdF_(4)∶Yb^(3+)/Eu^(3+)上转换发光增强及防伪应用

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光谱学与光谱分析 2024年第2期44卷 497-503页

作者：王翀任仲翾李冬冬佘江波西安邮电大学电子工程学院陕西西安710121 中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室陕西西安710119

稀土发光材料由于其良好的上转换发光性能已经逐渐成为荧光防伪领域的研究热点。首先采用水热法合成了一系列不同Li^(+)掺杂浓度的NaGdF_(4)∶Yb^(3+)/Eu^(3+)晶体,利用X射线衍射(XRD)、扫描电子显微镜(SEM)、上转换发射光谱测试等表征... 详细信息

稀土发光材料由于其良好的上转换发光性能已经逐渐成为荧光防伪领域的研究热点。首先采用水热法合成了一系列不同Li^(+)掺杂浓度的NaGdF_(4)∶Yb^(3+)/Eu^(3+)晶体,利用X射线衍射(XRD)、扫描电子显微镜(SEM)、上转换发射光谱测试等表征方法,对样品的形貌、尺寸和上转换发光性能进行了分析,并选择发光强度和效果最好的晶体应用于防伪识别。实验结果表明,NaGdF_(4)∶Yb^(3+)/Eu^(3+)/Li^(+)的XRD衍射图谱与标准六方相NaGdF4的衍射峰一致,衍射峰尖锐且没有杂峰,证明合成了高纯度高结晶度的NaGdF4∶Yb^(3+)/Eu^(3+)/Li^(+)晶体。晶体的SEM图可以看出生成的样品为纯六方相,分布均匀,无团聚现象。共掺Yb^(3+)/Eu^(3+)/Li^(+)对晶体的结构、形貌、尺寸几乎没有影响。从上转换发射光谱可以看出,15 mol%Li^(+)掺杂的NaGdF4∶Yb^(3+)/Eu^(3+)晶体绿色发光强度是未掺杂Li^(+)的样品的6倍。考察了980 nm激光器的功率变化对未掺杂Li^(+)以及掺杂15 mol%Li^(+)样品的上转换发光性能的影响,发现随着激发功率从0.8 W增加到2.2 W的过程中,上转换发光强度逐渐增强。拟合后得到样品上转换过程中的所需光子数n值接近于2,为双光子发光过程。对NaGdF4∶Yb/Eu/Li进行了荧光寿命测试,5D_(1)能级的荧光寿命是未掺杂的1.4倍。最后,将形貌均匀、发光强度强的NaGdF_(4)∶0.2Yb/0.02Eu/0.15Li制成防伪油墨,通过丝网印刷技术在纸张、玻璃、塑料等材料上印刷荧光防伪图案。在980 nm激光的泵浦下,防伪图案发出明亮的绿光。在自然环境下,纸张上的防伪图案有很好的隐蔽性。图案中的“safe”字样长度为5.5 mm,字母间距为0.5 mm,在980 nm激光的泵浦下,仍然可以分辨清楚。将印制有防伪图案的塑料暴露在室外自然环境下一个月,图案没有明显改变。表明NaGdF_(4)∶0.2Yb/0.02Eu/0.15Li制成的防伪图案分辨率高,易于识别,受环境影响小,在防伪识别方面具有良好的应用前景。

关键词：上转换发光稀土掺杂荧光光谱防伪识别丝网印刷

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民事诉讼法“去试行化”:以民法典为参照

法治社会 2024年第3期 28-45页

作者：任重清华大学

民事诉讼法的编纂式法典化是“切实实施民法典”的应有之义。2021年和2023年民事诉讼法修正案使其逐渐脱离法典化的时代浪潮,以解决“诉讼爆炸”“案多人少”为主要考量的法律修订使民事诉讼法面临与民法典脱钩的结构性风险。民事诉讼... 详细信息

民事诉讼法的编纂式法典化是“切实实施民法典”的应有之义。2021年和2023年民事诉讼法修正案使其逐渐脱离法典化的时代浪潮,以解决“诉讼爆炸”“案多人少”为主要考量的法律修订使民事诉讼法面临与民法典脱钩的结构性风险。民事诉讼法“试行化”的根本原因是“先程序,后实体”的民事立法模式,即以实体法的缺位为时代背景,以“民事审判工作的经验”为立法来源,以“案多人少”“诉讼爆炸”为“实际情况”。1991年《民事诉讼法》及其不断加速的修正案并未最终实现“去试行化”,举证责任、起诉条件、诉讼时效、一般保证等诉讼构造未能与民法典保持同一精神。民事诉讼法“去试行化”是一项系统工程,诉权、诉讼目的论和既判力本质论是首当其冲的希尔伯特之问。我国亟待完成从二元诉权论向权利保护请求权论的模式转型,民事权利保护亟需被确立为民事诉讼的首要目的,法院生效判决认定的民事权利义务关系原则上不改动既有私法秩序。以上述本原问题的“去试行化”为起点,以民法典为参照,民事诉讼法将经由“去试行化”稳步实现编纂式法典化,由此开启民事诉讼法典与民法典协同融合的新格局。

关键词：民法典举证责任起诉条件诉权既判力本质论

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剩余风险与商业医疗保险中的选择效应研究

保险研究 2024年第4期 62-75页

作者：杨攀续钟仁耀华东师范大学公共管理学院

实现多层次医疗保障的有序衔接需要分析各项目间的互补关系。本文构建剩余风险指标,基于2018年中国健康与养老追踪调查数据,描述剩余风险对商业医疗保险中的选择效应的影响,实证分析选择效应的类型并解释其形成机制。剩余风险衡量个体... 详细信息

实现多层次医疗保障的有序衔接需要分析各项目间的互补关系。本文构建剩余风险指标,基于2018年中国健康与养老追踪调查数据,描述剩余风险对商业医疗保险中的选择效应的影响,实证分析选择效应的类型并解释其形成机制。剩余风险衡量个体选择性参保时面临的健康风险,即剔除多层次医疗保障可能降低的风险后剩余的健康风险。研究发现,商业医疗保险市场中的主要选择效应为正向选择,剩余风险较高者参保概率仅为较低者的60%,即多层次医疗保障水平较低且健康风险较高的个体反而参保概率较低。考虑多层次医疗保障与商业医疗保险的互补关系将使模型对参保行为的解释效力提升18%。通过控制遗漏变量、改变估计方法、替换剩余风险衡量指标和使用工具变量的方式确认了实证结果的稳健性。正向选择在年龄和家庭保障能力方面存在异质性,年龄较低、家庭储蓄水平和家庭经济水平较高的个体正向选择参保的概率较高。机制分析发现,风险厌恶可以解释正向选择现象,即风险厌恶程度较高者积极降低自身剩余风险且主动参加商业医疗保险使得市场中呈现“保险-剩余风险”的负相关关系。

关键词：商业医疗保险正向选择逆向选择风险厌恶