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轻度抑郁障碍患者五音疗法治疗前后脑改变的磁共振成像研究

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中国医药科学 2024年第13期14卷 137-141,185页

作者：佟靖雯魏景洋王阔梁爽牡丹江医学院医学影像学院黑龙江牡丹江157000 牡丹江医学院附属第二医院影像科黑龙江牡丹江157000

目的基于多模态磁共振评估五音疗法治疗轻度抑郁障碍患者治疗前后的脑改变。方法纳入自2021年1月至2022年6月精神心理科就诊的轻度抑郁障碍患者250例,按照随机数表法分为试验组200例,对照组50例。试验组给予为期8周的五音疗法治疗干预,... 详细信息

目的基于多模态磁共振评估五音疗法治疗轻度抑郁障碍患者治疗前后的脑改变。方法纳入自2021年1月至2022年6月精神心理科就诊的轻度抑郁障碍患者250例,按照随机数表法分为试验组200例,对照组50例。试验组给予为期8周的五音疗法治疗干预,对照组仅常规随访。通过比较两组患者治疗前后心理学量表差异判定五音疗法疗效。比较两组全脑结构、差异脑区及相应脑区弥散张量成像各向异性分数(FA)值的变化,表征五音疗法治疗有效的轻度抑郁障碍患者的特异性脑改变。结果试验组经五音疗法治疗后17项汉密尔顿抑郁评分标准(HAMD)和汉密尔顿焦虑量表(HAMA)评分减低,差异有统计学意义(P0.05)。结论五音疗法对于轻度抑郁障碍患者的治疗效果显著,并存在不同脑区的特异性改变,多模态磁共振可以用作为表征抑郁障碍患者脑改变的神经影像学工具,为临床诊断及评估抑郁障碍提供定量影像学支持。

关键词：多模态磁共振成像轻度抑郁五音疗法脑结构

Prediction model on hydrolysis kinetics of phthalate monoester:A density functional theory study

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Journal of Environmental Sciences 2024年第1期135卷 51-58页

作者： tong Xu jingwen Chen Deming Xia Weihao Tang Jiansheng Cui Chun Liu Shuangjiang Li College of Environmental Science and Engineering Hebei University of Science and TechnologyShijiazhuang 050000China Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and ManagementInstitute of Eco-environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China

As primary degradation products of phthalate esters,phthalate monoesters(MPEs)have been widely detected in various aquatic environments and drawn growing toxicological *** kinetics that is of importance for assessing environmental persistence of chemicals remain elusive for ***,kinetics of base-catalyzed and neutral hydrolysis for 18 MPEs with different leaving groups was investigated by density functional theory *** indicate that MPEs with leaving groups having p Kaof<10 prefer dissociative transition *** are more persistent than their parents,and their hydrolysis half-lives were calculated to vary from 3.4 min to 79.2 years(p H=7–9).A quantitative structure-activity relationship model was developed for predicting the hydrolysis kinetics *** was found that p Kaof the leaving groups and electronegativity of the MPEs are key factors determining the hydrolysis *** work may lay a theoretical foundation for better understanding the chemical process that governs MPE persistence in aquatic environments.

关键词： Phthalate monoesters Phthalate esters Hydrolysis Density functional theory Quantitative structure-activity relationship

Modification of the CuO electronic structure for enhanced selective electrochemical CO_(2)reduction to ethylene

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Nano Research 2024年第8期17卷 7194-7202页

作者： Xin Wu Zhuang tong Yunliang Liu Yaxi Li Yuanyuan Cheng jingwen Yu Peng Cao Chunqiang Zhuang Qiuzhong Shi Naiyun Liu Xiang Liu Hongyu Liang Haitao Li Institute for Energy Research School of Energy and Power EngineeringJiangsu UniversityZhenjiang 212013China Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124China Institute of Medicine&Chemical Engineering Zhenjiang CollegeZhenjiang 212013China Institute of Advanced Manufacturing and Modern Equipment Technology School of Mechanical EngineeringJiangsu UniversityZhenjiang 212013China

Electrochemical carbon dioxide reduction reaction(CO_(2)RR)can produce value-added hydrocarbons from renewable electricity,providing a sustainable and promising approach to meet dual-carbon targets and alleviate the energy ***,it is still challenging to improve the selectivity and stability of the products,especially the C^(2+)*** we propose to modulate the electronic structure of copper oxide(CuO)through lattice strain construction by zinc(Zn)doping to improve the selectivity of the catalyst to *** performance and in situ characterization analyses show that the compressive strain generated within the CuO lattice and the electronic structure modulation by Zn doping enhances the adsorption of the key intermediate*CO,thereby increasing the intrinsic activity of CO_(2)RR and inhibiting the hydrogen precipitation *** the best catalysts had significantly improved ethylene selectivity of 60.5%and partial current density of 500 mA·cm^(–2),and the highest C^(2+)Faraday efficiency of 71.47%.This paper provides a simple idea to study the modulation of CO_(2)RR properties by heteroatom doped and lattice strain.

关键词： CO_(2)reduction heteroatom-doped lattice strain ethylene selectivity

Modularized sulfur storage achieved by 100% space utilization host for high performance lithium-sulfur batteries

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Chinese Chemical Letters 2024年第4期35卷 237-243页

作者： Jun Jiang tong Guo Wuxin Bai Mingliang Liu Shujun Liu Zhijie Qi jingwen Sun Shugang Pan Aleksandr L.Vasiliev Zhiyuan Ma Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and TechnologyNanjing 210094China Changzhou Institute of Technology Changzhou 213032China Shubnikov Institute of Crystallography Russian Academy of SciencesLeninskii pr.59Moscow 119333Russia Jiangsu Pylon Battery Co. Ltd.Yangzhou 211400China

Popularization of lithium-sulfur batteries(LSBs) is still hindered by shuttle effect and volume ***, a new modularized sulfur storage strategy is proposed to solve above problems and accomplished via employing 100% space utilization host material of cobalt loaded carbon nanoparticles derived from ZIF-67. The modular dispersed storage of sulfur not only greatly increases the proportion of active sulfur,but also inhibits the occurrence of volume expansion. Meanwhile, 100% space utilization host material can greatly improve the conductivity of the cathode, provide a larger electrolyte wetting interface and effectively suppress the shuttle effect. Moreover, loaded cobalt particles have high catalytic activity for electrochemical reaction and can effectively improve the redox kinetics. The cell with new cathode host material carbonized at 650 ℃(ZIF-67(650 ℃)) exhibits superior rate performance and can maintain a high specific capacity of 950 m Ah/g after 100 cycles at 0.2 C, showing a good cycle stability.

关键词： Modularized sulfur storage Space utilization Cathode host material ZIF-67 Lithium-sulfur batteries

Advances and perspectives in environmental health research in China

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Frontiers of Environmental Science & Engineering 2024年第6期18卷 105-113页

作者： tong Zhu Yingjun Liu Shunqing Xu Guanghui Dong Cunrui Huang Nan Sang Yunhui Zhang Guanyong Su jingwen Chen Jicheng Gong Guohua Qin Xinghua Qiu Jing Shang Haobo Wang Pengpeng Wang Mei Zheng SKL-ESPC&SEPKL-AERM Department of Environmental HealthCollege of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Center for Environment and Health Peking UniversityBeijing 100871China School of Life and Health Sciences Huainan UniversityHaikou 570228China Joint International Research Laboratory of Environment and Health(Ministry of Education) Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk AssessmentDepartment of Occupational and Environmental HealthSchool of Public HealthSun Yat-sen UniversityGuangzhou 510080China Vanke School of Public Health Tsinghua UniversityBeijing 100084China Research Center of Environment and Health College of Environment and ResourceShanxi UniversityTaiyuan 030006China Department of Environmental Health School of Public HealthFudan UniversityShanghai 200032China School of Environmental and Biological Engineering Nanjing University of Science and TechnologyNanjing 210094China Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention TechnologySchool of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China Department of Occupational and Environmental Health College of Public HealthZhengzhou UniversityZhengzhou 450001China

Environmental health research aims to identify environmental conditions suitable for the healthy living and reproduction of human *** the interdisciplinary research bridging environmental sciences and health/medical sciences,the impacts of physical,chemical,and biological environmental factors on human health are *** includes identifying environmental factors detrimental to human health,evaluating human exposure characteristics to environmental factors,clarifying causal relationships between environmental exposure and health effects,analyzing the underlying biochemical mechanisms,linking environmental factors to the onset and progression of diseases,establishing exposure-response relationships,and determining effect ***,the results of environmental health research can serve as a scientific basis for formulating environmental management strategies and guiding prevention and intervention measures at both the public and individual *** paper summarizes the recent advances and future perspectives of environmental health research in China,as reported by a group of Chinese scientists who recently attended a workshop in Hainan,*** it is not intended to provide a comprehensive review of this expansive field,it offers a glimpse into the significant progress made in understanding the health impacts of environmental factors over the past *** ahead,it is imperative not only to sustain efforts in studying the health effects of traditional environmental pollution,but also to prioritize research on the health impacts of emerging pollutants and climate change.

关键词： Environmental pollution Emerging pollutants Climate change Exposure Mechanism

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热处理对酸马奶中蛋白质稳定性的影响

中国食品学报 2022年第12期22卷 174-180页

作者：孟岳成黃阮卿陈杰李延华汪振涛仝静雯浙江工商大学食品与生物工程学院杭州310018

为弄清热处理对酸马奶再加热蛋白质稳定性的影响,测定不同热处理的酸马奶的相关指标,并结合SDS-PAGE图谱分析酸马奶蛋白质的悬浮稳定性和乳清蛋白变性程度,用傅里叶变换红外光谱技术对其二级结构进行表征。结果表明:65℃至90℃的热处理... 详细信息

为弄清热处理对酸马奶再加热蛋白质稳定性的影响,测定不同热处理的酸马奶的相关指标,并结合SDS-PAGE图谱分析酸马奶蛋白质的悬浮稳定性和乳清蛋白变性程度,用傅里叶变换红外光谱技术对其二级结构进行表征。结果表明:65℃至90℃的热处理对酸马奶的酸度和pH值无显著影响,与未热处理相比,热处理的酸马奶蛋白质的离心悬浮量、变性率和二级结构比例发生显著变化(P<0.05)。β-折叠比例的变化对酸马奶蛋白质热聚集体聚集程度具有重要影响;随着热处理程度的增强,酸马奶黏度和乳清蛋白变性程度不断增大,变性率分别为38.52%,40.88%,50.94%,69.03%,呈加速增大的趋势。90℃/5 min热处理后β-乳球蛋白基本消失,严重破坏了乳清蛋白的稳定性,ζ-电位、蛋白质悬浮稳定性和β-折叠比例均呈先增后降的趋势。结论:适当的热处理能提高酸马奶蛋白质的稳定性。

关键词：酸马奶热处理蛋白质热稳定性

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一种针对噪声不确定性的顽健循环特征检测法

电信科学 2016年第10期32卷 71-76页

作者：陈强金明童景文宁波大学信息科学与工程学院浙江宁波315211

循环特征检测法的检测性能远优于能量检测法,但是噪声不确定性会使这一优势变得不明显。针对这一问题,提出了一种能够对抗噪声不确定性的循环特征检测法。推导证明了在二维循环谱中,不同循环频率上的噪声分量具有独立同分布的特性。基... 详细信息

循环特征检测法的检测性能远优于能量检测法,但是噪声不确定性会使这一优势变得不明显。针对这一问题,提出了一种能够对抗噪声不确定性的循环特征检测法。推导证明了在二维循环谱中,不同循环频率上的噪声分量具有独立同分布的特性。基于这一特性,利用授权用户信号循环谱峰以外的值来估计循环谱峰处的噪声分布,并获得不需要噪声功率先验知识的判决门限,从而避免了噪声不确定性的影响。实验结果表明,所提方法的检测性能接近噪声功率精确已知的循环特征检测法。

关键词：频谱感知循环特征检测噪声不确定性

个体特征因素与矿工安全注意力的结构方程模型

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辽宁工程技术大学学报（社会科学版） 2018年第5期20卷 378-384页

作者：佟静文辽宁工程技术大学工商管理学院辽宁葫芦岛125105

为探讨个体特征因素与对矿工安全注意力的关系,在文献分析和开放式访谈的基础上,通过对20个煤矿的635名一线矿工进行问卷调查,采用因子分析提取出6个个体特征因素,即认知能力、自我效能、安全记忆、工作压力感、工作动机和思考能力;采... 详细信息

为探讨个体特征因素与对矿工安全注意力的关系,在文献分析和开放式访谈的基础上,通过对20个煤矿的635名一线矿工进行问卷调查,采用因子分析提取出6个个体特征因素,即认知能力、自我效能、安全记忆、工作压力感、工作动机和思考能力;采用结构方程构建个体特征因素与安全注意力的关系模型。结果表明:6个个体特征因素均与矿工安全注意力显著相关;工作动机、认知能力和工作压力感影响最为显著;自我效能不仅直接影响矿工安全注意力,而且通过工作动机和工作压力感间接影响矿工安全注意力。结果为个体角度干预安全注意力提供了方向。

关键词：矿工个体特征因素安全注意力因子分析结构方程模型

一种基于切换失败概率和认知用户信道容量联合优化的访问策略

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电信科学 2016年第9期32卷 82-88页

作者：许蒙迪金明童景文宁波大学信息科学与工程学院浙江宁波315211

现有频谱切换信道访问策略主要考虑切换失败概率,而较少考虑认知用户的信道容量。针对这一问题,提出了一种基于切换失败概率和认知用户信道容量联合优化的频谱切换信道访问策略。首先证明了按信噪比降序访问可以得到最大的认知用户信道... 详细信息

现有频谱切换信道访问策略主要考虑切换失败概率,而较少考虑认知用户的信道容量。针对这一问题,提出了一种基于切换失败概率和认知用户信道容量联合优化的频谱切换信道访问策略。首先证明了按信噪比降序访问可以得到最大的认知用户信道容量,而按信道平均空闲时间降序访问可以得到最低切换失败概率。接着提出对信道平均空闲时间和信噪比进行排序并加权合并的非参数化处理。最后,按非参数化处理结果降序进行信道访问。结果表明,所提方法能够在切换失败概率接近最低的情况下,使认知用户信道容量提升50%左右。

关键词：认知无线电频谱切换信道访问策略信道容量