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国家审计效果、政府行为与市场化进程——基于中介效应理论的实证分析

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审计与经济研究 2015年第6期30卷 11-18页

作者：树成琳宋达南京大学商学院江苏南京210093 中国民生银行南京分行江苏南京210093

国家审计是国家治理的重要组成部分,在全面深化改革的进程中发挥重要作用。理论分析表明,国家审计效果能够有效制约、规范政府行为,并且促进市场经济发展;而政府行为又是我国经济体制改革和市场经济发展的最重要因素,决定了市场能否在... 详细信息

国家审计是国家治理的重要组成部分,在全面深化改革的进程中发挥重要作用。理论分析表明,国家审计效果能够有效制约、规范政府行为,并且促进市场经济发展;而政府行为又是我国经济体制改革和市场经济发展的最重要因素,决定了市场能否在资源配置中起决定作用。通过对省级审计机关数据的实证分析发现,国家审计效果能够对地方市场化进程的发展起到显著的促进作用,而政府行为在其中起到了显著的中介效应作用。

关键词：国家审计效果政府行为中国市场化进程中介效应国家治理政府审计审计机关经济体制改革

Attention Eraser and Quantitative Measures for Automated Bone Age Assessment

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Computers, Materials & Continua 2025年第1期82卷 627-644页

作者： Liuqiang shu Lei Yu College of Computer and Information Science Chongqing Normal UniversityChongqing401331China

Bone age assessment(BAA)aims to determine whether a child’s growth and development are normal concerning their chronological *** predict bone age more accurately based on radiographs,and for the left-hand X-ray images of different races model can have better adaptability,we propose a neural network in parallel with the quantitative features from the left-hand bone measurements for *** this study,a lightweight feature extractor(LFE)is designed to obtain the featuremaps fromradiographs,and amodule called attention erasermodule(AEM)is proposed to capture the fine-grained ***,the dimensional information of the metacarpal parts in the radiographs is measured to enhance the model’s generalization capability across images fromdifferent *** is trained and validated on the RSNA,RHPE,and digital hand atlas datasets,which include images from various racial *** model achieves a mean absolute error(MAE)of 4.42 months on the RSNA dataset and 15.98 months on the RHPE *** to ResNet50,InceptionV3,and several state-of-the-art methods,our proposed method shows statistically significant improvements(p<0.05),with a reduction in MAE by 0.2±0.02 years across different racial ***,t-tests on the features also confirm the statistical significance of our approach(p<0.05).

关键词： Bone age assessment attention eraser quantitative feature metacarpal bones

Establishment of human cerebral organoid systems to model early neural development and assess the central neurotoxicity of environmental toxins

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Neural Regeneration Research 2025年第1期20卷 242-252页

作者： Daiyu Hu Yuanqing Cao chenglin Cai Guangming Wang Min Zhou Luying Peng Yantao Fan Qiong Lai Zhengliang Gao Fundamental Research Center Shanghai Yangzhi Rehabilitation Hospital(Shanghai Sunshine Rehabilitation Center)School of MedicineTongji UniversityShanghaiChina Institute of Geriatrics(Shanghai University) Affiliated Nantong Hospital of Shanghai University(The Sixth People’s Hospital of Nantong)Shanghai University School of MedicineNantongJiangsu ProvinceChina Shanghai Engineering Research Center of Organ Repair Shanghai University School of MedicineShanghaiChina Key Laboratory of Arrhythmias Ministry of EducationShanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina

Human brain development is a complex process,and animal models often have significant *** address this,researchers have developed pluripotent stem cell-derived three-dimensional structures,known as brain-like organoids,to more accurately model early human brain development and *** enable more consistent and intuitive reproduction of early brain development,in this study,we incorporated forebrain organoid culture technology into the traditional unguided method of brain organoid *** involved embedding organoids in matrigel for only 7 days during the rapid expansion phase of the neural epithelium and then removing them from the matrigel for further cultivation,resulting in a new type of human brain organoid *** cerebral organoid system replicated the temporospatial characteristics of early human brain development,including neuroepithelium derivation,neural progenitor cell production and maintenance,neuron differentiation and migration,and cortical layer patterning and formation,providing more consistent and reproducible organoids for developmental modeling and toxicology *** a proof of concept,we applied the heavy metal cadmium to this newly improved organoid system to test whether it could be used to evaluate the neurotoxicity of environmental *** organoids exposed to cadmium for 7 or 14 days manifested severe damage and abnormalities in their neurodevelopmental patterns,including bursts of cortical cell death and premature *** exposure caused progressive depletion of neural progenitor cells and loss of organoid integrity,accompanied by compensatory cell proliferation at ectopic *** convenience,flexibility,and controllability of this newly developed organoid platform make it a powerful and affordable alternative to animal models for use in neurodevelopmental,neurological,and neurotoxicological studies.

关键词： cadmium cell death cell proliferation cortical development environmental toxins neural progenitor cells neurogenesis neurotoxicology organoids stem cells

OPEN-CYCLE ABSORPTION AIR-CONDITIONING TESTING SYSTEM

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OPEN-CYCLE ABSORPTION AIR-CONDITIONING TESTING SYSTEM

MixerKT:A Knowledge Tracing Model Based on Pure MLP Architecture

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： ZHAO chenglin*, JIANGZHOU shu*, TANG Zheng, YUAN Yijun *School of Automation, Hangzhou DianZi University, Hangzhou, Zhejiang 310018,China Guangzhou Tianhe Lanshi Technology Development Cop. Ltd., Guangzhou 510620, China

Open-cycle absorption air-conditioning unit can provide thefull fresh air with LiBr absorbent water as the refrigerantwhich mainly consists of four modules: air deliverydehumidification, temperature-a

关键词： Open-cycle absorption air-conditioning testingsystem automation technology object-oriented designpattern.

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Computers, Materials & Continua 2025年第1期82卷 485-498页

作者： Jun Wang Mingjie Wang Zijie Li Ken Chen Jiatian Mei shu Zhang Key Laboratory of Education Informatization for Nationalities Ministry of EducationYunnan Normal UniversityKunming650000China Yunnan Key Laboratory of Smart Education Yunnan Normal UniversityKunming650000China

In the field of intelligent education,the integration of artificial intelligence,especially deep learning technologies,has garnered significant *** tracing(KT)plays a pivotal role in this field by predicting students’future performance through the analysis of historical interaction data,thereby assisting educators in evaluating knowledgemastery and tailoring instructional *** knowledge tracingmethods,largely based on Recurrent Neural Networks(RNNs)and Transformer models,primarily focus on capturing long-term interaction patterns in sequential ***,these models may neglect crucial short-term dynamics and other relevant *** paper introduces a novel approach to knowledge tracing by leveraging a pure Multilayer Perceptron(MLP)*** proposeMixerKT,a knowledge tracing model based on theHyperMixer framework,which uniquely integrates global and localMixer feature *** architecture enables more effective extraction of both long-terminteraction trends and recent learning behaviors,addressing limitations in currentmodels thatmay overlook these key *** evaluations on twowidely-used datasets,ASSIS Tments2009 and Algebra2005,demonstrate that MixerKT consistently outperforms several state-of-the-art models,including DKT,SAKT,and Separated Self-Attentive Neural Knowledge Tracing(SAINT).Specifically,MixerKT achieves higher prediction accuracy,highlighting its effectiveness in capturing the nuances of learners’knowledge *** results indicate that our model provides a more comprehensive representation of student learning patterns,enhancing the ability to predict future performance with greater precision.

关键词： Knowledge tracing multilayer perceptron channel mixer sequence mixer

早期心脏康复运动对老年急性心肌梗死经皮冠状动脉介入术后心功能及日常生活能力的影响

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中国当代医药 2023年第35期30卷 61-64,69页

作者：周芸梁宇明舒成霖苏柳静广西壮族自治区江滨医院心内科广西南宁530021

目的探讨早期心脏康复对老年急性心肌梗死(AMI)患者经皮冠状动脉介入术(PCI)后心功能和日常生活能力的影响。方法选取2020年5月至2021年6月广西壮族自治区江滨医院收治的60例老年AMI患者作为研究对象,按照随机数字表法分为对照组和康复... 详细信息

目的探讨早期心脏康复对老年急性心肌梗死(AMI)患者经皮冠状动脉介入术(PCI)后心功能和日常生活能力的影响。方法选取2020年5月至2021年6月广西壮族自治区江滨医院收治的60例老年AMI患者作为研究对象,按照随机数字表法分为对照组和康复组,每组30例。患者均进行PCI治疗,术后对照组接受常规药物干预,康复组在对照组基础上接受早期心脏康复训练处方。比较两组的左室射血分数(LVEF)、6 min步行距离、生活质量评分和主要心血管不良事件(MACE)(心肌梗死、心绞痛、心力衰竭)发生率。结果两组治疗后的LVEF比较,差异无统计学意义(P>0.05);康复组治疗后的6 min步行距离长于对照组,差异有统计学意义(P<0.05);康复组的MACE总发生率低于对照组,差异有统计学意义(P<0.05);康复组治疗后的生活质量评分高于对照组,差异有统计学意义(P<0.05)。结论早期心脏康复训练有利于改善老年心肌梗死患者的心功能和生活质量,减少MACE事件的发生。

关键词：心脏康复急性心肌梗死经皮冠状动脉介入术心功能日常生活能力

人肺炎链球菌参考血清BW09的制备及其24个血清型IgG抗体浓度的赋值

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中华微生物学和免疫学杂志 2019年第6期39卷 466-471页

作者：陈娟陈秋璟张建华刘威陈祥朱小广舒成林张锐何建琴兰芳成都生物制品研究所有限责任公司细菌性疫苗二室 610023 成都生物制品研究所有限责任公司细菌性疫苗研究室 610023 成都蓉生药业有限责任公司 610041

目的制备成都生物制品研究所有限责任公司人肺炎链球菌参考血清,并对24个血清型的抗荚膜多糖抗体IgG浓度进行赋值。方法用23价肺炎链球菌多糖疫苗免疫50名健康成人,采集免疫后血浆,制备人肺炎链球菌参考血清BW09。采用世界卫生组织推荐... 详细信息

目的制备成都生物制品研究所有限责任公司人肺炎链球菌参考血清,并对24个血清型的抗荚膜多糖抗体IgG浓度进行赋值。方法用23价肺炎链球菌多糖疫苗免疫50名健康成人,采集免疫后血浆,制备人肺炎链球菌参考血清BW09。采用世界卫生组织推荐的人血清肺炎链球菌荚膜多糖抗体IgG定量酶联免疫吸附测定方法,以兰州生物制品研究所有限责任公司的09CS为参考血清,对24个血清型别(1、2、3、4、5、6A、6B、7F、8、9N、9V、10A、11A、12F、14、15B、17F、18C、19A、19F、20、22F、23F、33F)抗体的IgG浓度进行赋值;以赋值后的BW09为参考血清,检测09CS,比较09CS新值与原赋值之间的差异;分别以BW09和09CS为参考血清,检测质控血清QC02、QC03和8个血清样品,比较两种参考品测定抗体浓度的差异,对新制参考血清赋值的准确性进一步验证。结果制备了人肺炎链球菌参考血清BW09;确定了BW09中24个血清型IgG抗体浓度。以BW09为参考血清检测09CS的新值与原赋值比较,各血清型的误差百分率绝对值均在10%以内。分别以BW09和09CS为参考血清检测质控血清QC02、QC03和8个血清样品的24个血清型IgG抗体,测得的检测值间呈线性相关。结论成功制备了人肺炎链球菌参考血清BW09,并对其中的24个血清型抗体IgG浓度进行了准确赋值。

关键词：肺炎链球菌参考血清 IgG 酶联免疫吸附试验

基于光电对射阵列下谷物收获流量控制系统的设计

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农机化研究 2025年第1期47卷 142-147页

作者：刘成林郑世界四川城市职业学院成都610110 成都工业职业技术学院成都610213

在谷物收获过程中,由于谷物的性质不同及收获机械的工作状态不同,谷物的流量往往会出现波动或过大过小的情况,直接影响谷物的收获效率和质量,甚至会导致收获机械的故障。因此,对谷物的流量进行准确的控制和调节是非常重要的。为此,设计... 详细信息

在谷物收获过程中,由于谷物的性质不同及收获机械的工作状态不同,谷物的流量往往会出现波动或过大过小的情况,直接影响谷物的收获效率和质量,甚至会导致收获机械的故障。因此,对谷物的流量进行准确的控制和调节是非常重要的。为此,设计了一种基于光电对射阵列的谷物收获流量控制系统,可通过使用光电对射阵列检测收获机的运动状态和收获物料的流量,进而控制收获机的速度和工作状态,以实现谷物的准确收获和控制流量。试验验证表明:系统具有较高的准确性和稳定性,能够有效地控制谷物的流量,提高收获效率和质量,具有广泛的应用前景。

关键词：谷物收获流量控制光电对射阵列传感器监测

Metastable seed-crystals: epitaxial growth of branched-array organic heterostructure nanowires

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Science China Chemistry 2025年

作者： Jin Feng Zhen-Yu Geng Ting-Yao Song Ying-Xin Ma Chuan-Zeng Wang Wei Zhang Hong-Tao Lin Jin Zhou shu-Ping Zhuo shu-Hai Chen Xue-Dong Wang School of Chemistry and Chemical Engineering Shandong University of Technology Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University College of Chemistry and Chemical Engineering Hunan Normal University

Tunable light–matter interactions are exhibited by organic low-dimensional crystals, making these crystals a promising platform for organic photonics. However, the precise synthesis of organic low-dimensional crystals remains challenging due to the stochastic nature of molecular nucleation processes. Herein, the directed nucleation process is driven by the introduction of metastable seed-crystals as the trunk, which ultimately leads to branched-array organic heterostructures. The successful formation of organic heterostructures with high-density branched arrays is attributed to the highest attachment energy (Eatt（023）=-104.25 kcal mol-1) of the exposed （023） crystal plane during the seed-crystal growth route. Significantly, these as-prepared heterostructures inherently have an ultralow lattice mismatch ratio η of 0.7%between trunk and branch, which contributes to the multi-channel photon transportation. Therefore, this work provides valuable insights into a versatile synthetic strategy for accessing low-dimensional heterostructures for integrated optoelectronics.

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