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一元守正与多元创新——习近平总书记“3·18”重要讲话五年来学校思想政治理论课建设研究综述

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中国轻工教育 2024年第1期27卷 1-9页

作者：徐亚豪赵琦北京大学马克思主义学院北京100871 南开大学马克思主义学院天津300350

党的十八大以来,以习近平同志为核心的党中央高度重视教育事业,高度重视思想政治教育工作在整个教育事业中的重要作用。2019年3月18日,习近平总书记主持召开学校思想政治理论课教师座谈会并发表重要讲话,为统筹推进学校思想政治理论课... 详细信息

党的十八大以来,以习近平同志为核心的党中央高度重视教育事业,高度重视思想政治教育工作在整个教育事业中的重要作用。2019年3月18日,习近平总书记主持召开学校思想政治理论课教师座谈会并发表重要讲话,为统筹推进学校思想政治理论课建设指明前进方向,对广大思想政治理论课教师提出殷切期望和要求。今年适逢习近平总书记“3·18”重要讲话发表五周年,梳理学界相关研究成果,回顾学校思想政治教育建设工作的发展成效,对于进一步贯彻讲话精神,努力培养有担当、有情怀、有本领的时代新人,落实好立德树人根本任务,高质量推动新时代思想政治理论课改革与发展具有重要意义。

关键词：习近平学校思想政治理论课重要讲话研究综述

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受限制投资组合机会成本的实证研究

管理学报 2008年第2期5卷 301-304页

作者：姚辉徐亚豪中国科学技术大学管理学院

通过对只能投资于股票和只能投资于债券2种情况下的投资组合的机会成本的计算,研究了受限制情况下所产生效用损失和风险厌恶程度对机会成本的影响。计算中选用上证综合指数、深圳成分指数、中信国债指数、中信企债指数和银行间7日债券... 详细信息

通过对只能投资于股票和只能投资于债券2种情况下的投资组合的机会成本的计算,研究了受限制情况下所产生效用损失和风险厌恶程度对机会成本的影响。计算中选用上证综合指数、深圳成分指数、中信国债指数、中信企债指数和银行间7日债券回购利率的5年期月度数据,运用向量自回归的方法估计下期组合的期望收益和收益的联合概率分布,并运用Quasi-Newton最优化方法来求得最优投资组合,从而求出机会成本。

关键词：计量经济学机会成本向量自回归效用损失

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宏观视域下的王阳明立志说

衡水学院学报 2018年第5期20卷 88-92页

作者：徐亚豪北京大学哲学系北京100871

王阳明自少年时代起便企向于"立志成圣",他一生讲学均强调对"立志"的阐发。在宏观的视域下,"立志"既代表着为学的根本方向,同时又指向于现实层面的道德践履,打通本体与功夫,在贯彻始终的"立"志功夫中进致超越性的"志"道之本体,"立志"的... 详细信息

王阳明自少年时代起便企向于"立志成圣",他一生讲学均强调对"立志"的阐发。在宏观的视域下,"立志"既代表着为学的根本方向,同时又指向于现实层面的道德践履,打通本体与功夫,在贯彻始终的"立"志功夫中进致超越性的"志"道之本体,"立志"的内涵即是经过内在德性的修养而达成一种"诚中形外"的实存转化,开显出生命存在的本真意义。

关键词：王阳明宏观视域立志功夫本体

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超低纹波PWM编码技术分析

重庆大学学报（自然科学版） 2018年第5期41卷 52-59页

作者：冉多钢陈鹏刘伟玲许亚豪河北工业大学机械学院天津300130

传统PWM(pulse width modulation)技术的不足之处是会产生纹波脉冲,对其他电路产生干扰。这对很多精度要求比较高的应用场合是非常不利的。一种基于脉冲编码的数字PWM方案,可以大幅度降低输出纹波的强度,可表述为:将PWM脉冲序列均匀的... 详细信息

传统PWM(pulse width modulation)技术的不足之处是会产生纹波脉冲,对其他电路产生干扰。这对很多精度要求比较高的应用场合是非常不利的。一种基于脉冲编码的数字PWM方案,可以大幅度降低输出纹波的强度,可表述为:将PWM脉冲序列均匀的分布到整个PWM周期之中,最理想的情况是达到单个脉冲的程度。理论上PWM输出纹波与PWM信号各次谐波幅值具有很强的正相关关系,其中基波与二次谐波的所产生的纹波最为显著。深入的分析表明,这种编码映射方法可以将这2项均降低到数字PWM信号最低极限数量级。初步实验表明,这种技术的效果非常显著。

关键词：纹波谐波分析脉冲宽度调制(PWM) 傅里叶级数脉冲编码

Riverine sulfate sources and behaviors in arid environment,Northwest China:Constraints from sulfur and oxygen isotopes

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Journal of Environmental Sciences 2024年第3期137卷 716-731页

作者： Yifu xu Wenjing Liu Bing xu Zhifang xu Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China

The fate of riverine sulfate ion (SO_(4)^(2-)) and its environmental effects in arid environment are difficult to evaluate due to its complicated sources and strongly coupled behaviors with water cycle which is significantly modified by *** understand the sulfur cycle in aquatic systems in arid environment,the chemical and sulfur and oxygen isotopic compositions (δ^(34)S_(SO4)and δ^(18)O_(SO4)) of major rivers around the Badain Jaran Desert,northwestern China,were *** rivers had averaged SO_(4)^(2-)content at 1336μmol/L,over 10times higher than the global *** δ^(34)S_(SO4)and δ^(18)O_(SO4)values ranged from-5.3‰to+11.8‰and+1.6‰to+12.8‰,*** end-member analysis and the inverse model showed that riverine sulfate was mainly derived from evaporites dissolution (0-87%),sulfide oxidation (13%-100%) and precipitation (0-33%),indicating heterogeneity in sulfur sources and behaviors along the river drainage with the lithology variations and climate *** isotopic tools combining with hydro-chemistry compositions could be applied to reveal sulfur cycle in arid *** on the calculation,sulfide oxidation plays the primary role in the headwater and upstream in the Qilian-Mountains area,where sulfide is widely *** the proportion of evaporites dissolution contributing to riverine sulfate is much higher in downstream in a drier ***,less precipitation and higher temperature can lead to more intensive evaporation,affecting the process of sulfide oxidation and enhancing the rates of evaporites dissolution and sulfate precipitation in the basin.

关键词： Sulfur and oxygen isotopes Source apportionment Inverse model Arid environment Inland rivers Northwestern China

Laboratory evaluation of high-friction thin overlays for pavement preservation

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Frontiers of Structural and Civil Engineering 2024年第6期18卷 936-948页

作者： Ouming xu Rentao xu Lintong JIN School of Highway Chang’an UniversityXi’an 710064China School of Materials Science and Engineering Chang’an UniversityXi’an 710061China

Traditional asphalt concrete(AC)and stone matrix asphalt(SMA),which are used as thin asphalt overlays,are common maintenance strategies to enhancing ride quality,skid resistance,and ***,several studies have used a novel asphalt mixture known as a high-friction thin overlay(HFTO)to improve surface ***,it remains uncertain whether the laboratory properties of HFTO differ significantly from those of conventional *** study aims to evaluate the laboratory properties of HFTO mixtures and compare them with those of AC and *** mixtures with nominal maximum size of 9.5 mm were produced in the laboratory,and performance tests were conducted,including wheel tracking test,low temperature flexural creep test,moisture susceptibility test,Cantabro Abrasion Test,Marshall Test,sand patch test,British pendulum test,and indoor tire-rollingdown *** results showed that the HFTO exhibited a lower tire/pavement noise than the AC and ***,HFTO had superior high-temperature stability,larger macro texture,and higher skid resistance in comparison to those of AC,but lower than those of ***,HFTO mixtures may be considered a suitable replacement for traditional AC mixtures in regions where skid resistance and noise reduction are concerns.

关键词： road engineering pavement maintenance high friction thin overlay performance skid resistance tire/pavement noise

Aldehyde oxidase mediated enantioselective metabolic health risk of dinotefuran

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Science China Chemistry 2024年第6期67卷 2079-2091页

作者： Liwei xu Xinxin xu Hua Kuang Chuanlai xu Xiaoling Wu State Key Laboratory of Food Science and Resources Jiangnan UniversityWuxi214122China International Joint Research Laboratory for Biointerface and Biodetection and School of Food Science and Technology Jiangnan UniversityWuxi214122China Collaborative Innovation center of Food Safety and Quality Control in Jiangsu Province Jiangnan UniversityWuxi214122China

Chiral pollutants often pose significant differential environmental health *** this study,the biotransformation of chiral dinotefuran(DIN)and its enantioselective metabolic toxicity mechanisms have been systemically ***,reversedphase chromatography-high resolution mass spectrometry was developed to quantify the content of DIN R/S chiral enantiomer with pg level sensitivity,revealing a lower elimination rate constant(K_(e))of S-DIN(0.730 h^(-1))than R-DIN(0.746 h^(-1)).Secondly,the interaction mechanism between DIN metabolism and important endogenous bioactive molecules,such as aldehyde oxidase(AOX)and neurotransmitters,was *** DIN nitro-group was converted into a guanidine group by the reducing site of nearby flavin adenine dinucleotide(FAD)in AOX with the preferred higher affinity of ***,the endogenous tryptophan(Trp)aldehyde metabolic intermediate,5-hydroxyindoleacetaldehyde(5-HIAL),provides a persistent electron donor for DIN reduction via the oxidation-catalyzed site in AOX,resulting in remarkable up-regulation of monoamine neurotransmitters such as serotonin and ***,the higher level of neurotransmitters further mediated dysregulation of oxylipin homeostasis via the serotonergic pathway,where S-DIN exhibited more pronounced liver lipid damage and environmental health risk with the accumulated lipid biomarkers,oxidized triglyceride(OxTG)and oxidized sphingomyelin(OxSM).This study elucidates the AOX-mediated enantioselectivity metabolic pathway of DIN,providing a new analytical method for chiral pollutants and paves the way for their health risk assessments.

关键词： neonicotinoid dinotefuran enantiomer aldehyde oxidase metabolomics health risk

Granting strength to aerogel fibers through encapsulation

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Science China Materials 2024年第4期67卷 1365-1366页

作者： Wenhui xu Department of Basic Chemistry School of PharmacyJiangxi University of Chinese MedicineNanchang 330004China

Aerogel fibers, distinguished by their lightweight nature, pronounced porosity, large surface area, and superior thermal insulation properties, have diversified applications in thermal management, energy devices, and environmental remediation[1]. However, compared with monolithic ones, these fibershaped aerogels exhibit limited mechanical strength and resilience due to their one-dimensional small size.

关键词： strength fibers thermal

Skeletal interoception in osteoarthritis

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Bone Research 2024年第2期12卷 241-254页

作者： Dinglong Yang Jiawen xu Ke xu Peng xu Department of Joint Surgery Honghui HospitalXi’an Jiaotong UniversityXi’an 710054China Department of Orthopedic Surgery and Orthopedic Research Institute West China HospitalSichuan UniversityChengdu 610041China

The interoception maintains proper physiological conditions and metabolic homeostasis by releasing regulatory signals after perceving changes in the internal state of the *** its various forms,skeletal interoception specifically regulates the metabolic homeostasis of ***(OA)is a complex joint disorder involving cartilage,subchondral bone,and *** subchondral bone undergoes continuous remodeling to adapt to dynamic joint *** findings highlight that skeletal interoception mediated by aberrant mechanical loads contributes to pathological remodeling of the subchondral bone,resulting in subchondral bone sclerosis in *** skeletal interoception is also a potential mechanism for chronic synovial inflammation in *** this review,we offer a general overview of interoception,specifically skeletal interoception,subchondral bone microenviroment and the aberrant subchondral *** also discuss the role of skeletal interoception in abnormal subchondral bone remodeling and synovial inflammation in OA,as well as the potential prospects and challenges in exploring novel OA therapies that target skeletal interoception.

关键词： homeostasis inflammation releasing