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两种生态型羊草趋异类型分化的研究进展

吉林师范大学学报（自然科学版） 2024年第3期45卷 105-109页

作者：于英杰孙涛李海妍陶思宇吉林师范大学生命科学学院吉林四平136000

羊草又称碱草,是我国北方重要的优质饲草之一,广泛分布于欧亚大陆草原东部,具有显著的生态学意义.自然界中羊草存在叶色的差异,可依据叶色将其分为灰绿型和黄绿型两种生态型,二者在自身结构及抗逆特性等方面均表现出一定程度的差异.本... 详细信息

羊草又称碱草,是我国北方重要的优质饲草之一,广泛分布于欧亚大陆草原东部,具有显著的生态学意义.自然界中羊草存在叶色的差异,可依据叶色将其分为灰绿型和黄绿型两种生态型,二者在自身结构及抗逆特性等方面均表现出一定程度的差异.本文综合分析了两种生态型羊草在生理特性、叶绿体、种群水平以及对胁迫条件的响应等方面的差异,这些探讨有助于增进对植物趋异类型分化的理解,以期为相关领域的研究者提供有益的参考.

关键词：羊草生态型趋异类型种内分化

Validity and Reliability of Chinese Physical Activity Questionnaire for Children Aged 10-17 Years

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Biomedical and Environmental Sciences 2019年第9期32卷 647-658页

作者： YANG Xi JAGO Russell ZHAI Yi YANG Zhen yu WANG yu ying SI Xiang WANG Jun GAO Jian Fen CHEN Jing Ron yu ying jie ZHAO Wen Hua National Institute for Nutrition and Health Chinese Center for Disease Control and PreventionBeijing 100050China Chinese Center for Disease Control and Prevention Beijing 102206China Center for Exercise Nutrition and Health SciencesSchool for Policy StudiesUniversity of BristolBristol BS8 1TZUK Beijing Tiantan Hospital Capital Medical UniversityBeijing 100050China Wanzhou District Center for Disease Control and Prevention Chongqing 404000China Yanqing District Center for Disease Control and Prevention Beijing 102100China Chongqing Center for Disease Control and Prevention Chongqing 400042China Beijing Center for Disease Prevention and Control Beijing 100013China

Objective This study is aimed to report the development,the reliability and validity of the Chinese Children Physical Activity Questionnaire(CCPAQ)which was designed for the assessment of physical activity pattern in young population in *** The CCPAQ was administered for two times in 119 children(mean age 13.1±2.4 years;boys 47%)to examine reliability by using intraclass correlation *** was determined in 106 participants by agreement with the CCPAQ measures and the objective method,the ActiGraph *** on physical activity patter n including time spe nt on d iff ere nt intensi ties and total physical activity,sedentary behavior as well as physical activity energy expenditure were used to assess the validity with Spearman's correlation coefficient and the Bland-Altman *** The reliability coefficient of the CCPAQ ranged from 0.63-0.93(Intra-class correlation coefficient).Spearman's correlation coefficient for validity of time spent on total physical activity and sedentary behavior were all 0.32(P<0.001),and for physical activity energy expenditure was 0.58(P<0.001).Time spent on moderate-to-vigorous physical activity and light physical activity showed a relatively low correlation with the accelerometer(rho=0.20,P=0.040;rho=0.19,P=0.054).Conclusion The CCPAQ appears to be a promising and feasible method to assess physical activity pattern in Chinese children.

关键词： Physical activity Sedentary behavior Child Questionnaire Validity and reliability

A Quasilinear Parabolic System with Nonlocal Boundary Conditions and Localized Sources

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Communications in Mathematical Research 2011年第4期27卷 315-330页

作者： HAN yu-ZHU WEI ying-jie GAO WEN-jie Institute of Mathematics Jilin University Changchun 130012

This paper investigates the properties of solutions to a quasilinear parabolic system with nonlocal boundary conditions and localized sources. Conditions for the existence of global or blow-up solutions are given. Glo... 详细信息

关键词： global existence finite time blow-up localized source nonlocal bound-ary global blow-up blow-up rate

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北京市60岁及以上老年人三餐就餐情况分析

中国食物与营养 2024年第3期30卷 60-68,77页

作者：黄梨煜魏潇琪于博赵耀金庆中喻颖杰屠瑞莹张炎邵兵沙怡梅北京市疾病预防控制中心北京100013 中国疾病预防控制中心营养与健康所北京100050 北京市房山区疾病预防控制中心北京102401

目的:了解北京市60岁及以上老年人三餐就餐情况及影响因素。方法:利用2015年中国成人慢性病与营养监测中北京市60岁及以上老年人的数据,分析三餐就餐情况及其影响因素。结果:北京市60岁及以上老年人的每日三餐的比例为77.5%,每日早餐为8... 详细信息

目的:了解北京市60岁及以上老年人三餐就餐情况及影响因素。方法:利用2015年中国成人慢性病与营养监测中北京市60岁及以上老年人的数据,分析三餐就餐情况及其影响因素。结果:北京市60岁及以上老年人的每日三餐的比例为77.5%,每日早餐为86.5%,每日午餐为88.1%,每日晚餐为92.4%。60岁及以上老年人早餐、午餐及晚餐最主要食物均来自家庭制作的比例分别为82.1%、81.8%、85.7%。多因素Logistic回归模型分析结果显示,家庭月收入越高、腰围不适宜者、每日身体活动时间≥30 min/d及不饮酒的老年人每日三餐的比例高(均P<0.05);年龄越高早餐来自家庭制作的比例高(P<0.05);家庭月收入越高、高密度脂蛋白不正常者及不饮酒的老年人午餐来自家庭制作的比例高(均P<0.05);不饮酒的老年人晚餐来自家庭制作的比例高(P<0.05)。结论:北京市60岁及以上老年人每日三餐的比例和三餐食物来自家庭制作的比例均较低,急需相关部门开展有针对性的干预,让更多的老年人每日三餐都有保障。

关键词：三餐营养就餐情况老年人北京市

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Research progress of ferroptosis regulating lipid peroxidation and metabolism in occurrence and development of primary liver cancer

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2335-2349页

作者： yu-jie Shu Bo Lao ying-Yang Qiu Department of Gastroenterology Yinzhou District Second HospitalNingbo 315199Zhejiang ProvinceChina Yong Loo Lin School of Medicine National University of SingaporeSingapore 119077Singapore

As a highly aggressive tumor,the pathophysiological mechanism of primary liver cancer has attracted much *** recent years,factors such as ferroptosis regulation,lipid peroxidation and metabolic abnormalities have emerged in the study of liver cancer,providing a new perspective for understanding the development of liver *** regulation,lipid peroxidation and metabolic abnormalities play important roles in the occurrence and development of liver *** regulation of ferroptosis is involved in apoptosis and necrosis,affecting cell survival and *** peroxidation promotes oxidative damage and promotes the invasion of liver cancer *** abnormalities,especially the disorders of glucose and lipid metabolism,directly affect the proliferation and growth of liver cancer *** of ferroptosis regulation and lipid peroxidation may help to discover new therapeutic targets and improve therapeutic *** understanding of metabolic abnormalities can provide new ideas for the prevention of liver cancer,and reduce the risk of disease by adjusting the metabolic *** review focuses on the key roles of ferroptosis regulation,lipid peroxidation and metabolic abnormalities in this process.

关键词： Ferroptosis Lipid peroxidation Primary liver cancer Lipid metabolism Review

Association between nutritional and physical factors and anemia among schoolchildren aged 5 to 11 years in Beijing

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Chinese Medical Journal 2021年第13期134卷 1629-1631页

作者： ying-jie yu Ce Lu Xiao-Hui yu Dan-Dan Guo Hong Li Ke-Ji Li Yao Zhao Hui Wang Department of Nutrition and Food Hygiene Beijing Center for Disease Prevention and ControlBeijing Research Center for Preventive MedicineBeijing 100013China Department of Epidemiology and Biostatistics School of Public HealthNanjing Medical UniversityNanjingJiangsu 211161China Department of Nutrition and Food Hygiene School of Public HealthPeking UniversityBeijing 100191China

To the Editor:Previous studies paid less attention on the reasons of anemia in schoolchildren,particularly in a relatively well-off area,which might hamper policy design for anemia ***,the present study would explore the reasons for anemiain schoolchildren aged 5to 11 years in Beijing based on personal data including dietary intake and serum biomarkers of nutrients.

关键词： anemia intake dietary

Deciphering TADF Mechanisms in Metal-Free Organic Emitters BrA-HBI:Utilizing Optimally Tuned Range-Separated Functionals for Insight

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Chinese Physics Letters 2024年第9期41卷 28-37页

作者： Chunyue yu Hang Yin jie Guo Wentian Zhang ying Shi Institute of Atomic and Molecular Physics Jilin UniversityChangchun 130012China

Metal-free organic emitters,characterized by their thermally activated delayed fluorescence(TADF)properties,offer considerable promise for the creation of highly efficient organic light-emitting diodes(OLEDs).Recently,Shao et *** a novel excited state intramolecular proton transfer(ESIPT)system BrA-HBI,demonstrating an emission quantum yield of up to 50%[***.32,2201256(2022)].However,many open issues cannot be answered solely by experimental means only and require detailed theoretical *** instance,what causes the activation of TADF from the Keto*tautomer and leads to fluorescence quenching in the Enol^(*)form?Herein,we provide a theoretical investigation on the TADF mechanism of the BrA-HBI molecule by optimally tuned range-separated *** findings reveal that ESIPT occurs in the BrA-HBI ***,we have disclosed the reason for the fluorescence quenching of the Enol^(*)form and determined that the T_(2)state plays a dominant role in the TADF *** addition,double hybrid density functionals method was utilized to verify the reliability of optimally tuned range separation functionals on the calculation of the TADF mechanism in *** findings not only provide a theoretical reference for development of highly efficient organic light-emitting diodes,but also demonstrate the effectiveness of the optimally tuned range-separated functionals in predicting the luminescence properties of TADF molecules.

关键词： optimal finding separated

The effect of seismic action on stability of saline soil subgrade in cold region based on isothermal stratification method

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Earthquake Research Advances 2024年第3期4卷 66-81页

作者： jie Cheng yu Zhang ying Ma Xuerui Chen Ning An School of Traffic and Transportation Lanzhou Jiaotong UniversityLanzhou730070China Key Laboratory of Railway Industry of Plateau Railway Transportation Intelligent Management and Control Lanzhou Jiaotong UniversityLanzhou730070China Gansu Institute of Engineering Geology Lanzhou730030China

With the change of seasons, the shear strength of saline soil subgrade filler will change with the change of external temperature, which will aggravate the adverse effects of seismic on the subgrade. To explore the influence of seismic action on the stability of saline soil subgrade under the influence of temperature on the strength of saline soil subgrade filler, this paper first carried out saline soil shear tests at different temperatures to obtain the influence of temperature on the shear strength of saline soil. Then, the temperature field of the saline soil subgrade was simulated, and then based on the subgrade isothermal stratification model and FLAC3D, the displacement and acceleration amplification effects of seismic action on the shady slope, sunny slope and subgrade of saline soil subgrade in different months were analyzed. The following conclusions were finally drawn: under the action of seismic, In the process of the change of subgrade temperature of Qarhan-Golmud Expressway between 7.7°C and 27°C, the change of saline soil cohesion is the main factor affecting the stability of subgrade slope, and the maximum and minimum values of subgrade surface settlement appear in September and June of each year,respectively. In August, the differences of settlement between the shady slope and the sunny slope shoulder of the subgrade were the largest, and the acceleration of the shady slope and the sunny slope and the inside of the subgrade changed most significantly in the vertical direction. Special attention should be paid to the seismic early warning in the above key months;In the range from both sides of the shoulder to the centerline of the roadbed,the acceleration amplification effect starts to increase significantly from about 3m from the centerline of the roadbed to the centerline, so it is necessary to pay attention to the seismic design of this range.

关键词： Subgrade stability Saline soils Acceleration amplification effect Seismic design

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镍钴锰酸锂离子电池的制备及特性研究

新余学院学报 2024年第2期29卷 1-6页

作者：吴闰生刘冬阳刘洪涛杜志鹏余英杰赖俊杰新余学院新能源科学与工程学院江西新余338004 新余学院外国语学院江西新余338004 江西省应星锂电新材料产业技术研究有限公司江西新余338004

研究锂离子电池在不同放电倍率、不同温度情况下放电电压随容量的变化,发现在高倍率3 C和低温-10℃时,电压变化最大。同时,不同放电倍率及温度下,锂离子电池的荷电状态与电压关系和容量与电压关系类似。锂离子电池在0.5 C充电1 C和3 C... 详细信息

研究锂离子电池在不同放电倍率、不同温度情况下放电电压随容量的变化,发现在高倍率3 C和低温-10℃时,电压变化最大。同时,不同放电倍率及温度下,锂离子电池的荷电状态与电压关系和容量与电压关系类似。锂离子电池在0.5 C充电1 C和3 C放电时,锂离子电池的循环寿命分别达1636周和819周,循环寿命优异。放电倍率越大,对锂离子电池的循环寿命越不利。

关键词：锂离子电池镍钴锰酸锂物理特性化学特性