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我国育龄人群家庭“健康小三件”使用状况及影响因素分析

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中国健康教育 2024年第2期40卷 104-108页

作者：赵一盟杨胜慧张刚中国人口与发展研究中心北京100081

目的了解我国育龄人群家庭“健康小三件”使用状况及影响因素,为健康中国“合理膳食”专项行动的实施提供数据支撑。方法采用与规模成比例的概率抽样方法,选取60 000名育龄女性,采用自行设计的《2019年全国人口与家庭动态监测调查个... 详细信息

目的了解我国育龄人群家庭“健康小三件”使用状况及影响因素,为健康中国“合理膳食”专项行动的实施提供数据支撑。方法采用与规模成比例的概率抽样方法,选取60 000名育龄女性,采用自行设计的《2019年全国人口与家庭动态监测调查个人与家庭问卷》中使用“健康小三件”相关问题进行面对面访问获取数据,采用方差分析和OLS回归模型分析“健康小三件”使用状况及影响因素。结果 2019年我国育龄人群家庭“健康小三件”使用得分平均为(5.04±2.83)分。30~<35岁年龄段得分最高,平均得分为(5.24±2.77)分;育龄女性文化程度越高,得分越高;家庭收入越高,得分越高;有3岁以下孩子的家庭平均得分为(5.18±2.71)分;东部地区得分最高,平均得分为(5.40±2.75)分;第一类城市平均得分最高,为(5.70±2.79)分。多元线性回归分析结果显示,年龄(β=0.01)、受教育年限(β=0.14)、家庭年收入为3~<5万元(β=0.25)、家庭年收入为5~<8万元(β=0.36)、家庭年收入为8~<12万元(β=0.51)、家庭年收入≥12万元(β=0.35)、城镇(β=0.31)、东部地区(β=0.56)、中部地区(β=0.34)、东北地区(β=0.13)是影响“健康小三件”使用得分的主要因素(P<0.001)。结论 “健康小三件”使用状况较差,要有针对性地提高低收入、低文化程度、经济社会发展水平较为落后地区的人群使用率。

关键词：育龄人群健康素养健康教育生活方式减盐、减油

Functional Characterization of an Aldehyde Dehydrogenase Homologue in Rice

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Journal of Integrative Agriculture 2012年第9期11卷 1434-1444页

作者： yang sheng-hui NIU Xiang-li LUO Di CHEN Chang-dong YU Xu TANG Wei LU Bao-rong LIU Yong-sheng Key Laboratory for Bio-Resource and Eco-Environment Minstry of Education~College of Life Sciences Sichuan University Chengdu 610064 P.R.Chtina College of Life Sciences Chongqing University Chongqing 400044 P.R.China Key Laboratory for Biodiversity Science and Ecological Engineering Ministry of Education~Institute of Biodiversity Science Fudan University Shanghai 200433 P.R.China

The aldehyde dehydrogenase （ALDH） superfamily of NAD（P）-dependent enzymes, in general, oxidize a wide range of endogenous and exogenous aliphatic and aromatic aldehydes to their corresponding carboxylic acids and play an essential role in detoxification of reactive oxygen species （ROS） accumulated under the stressed conditions. In order to identify genes required for the stresses responses in the grass crop Oryza sativa, a homologue of ALDH gene （OsALDH22） was isolated and characterized. OsALDH22 is conserved in eukaryotes, shares high homology with the orthologs from aldehyde dehydrogenase subfamily ALDH22. The OsALDH22 encodes a protein of 597 amino acids that in plants exhibit high identity with the orthologs from Zea mays, Sorghum bicolor, Hordeum vulgare and Arabidopsis thaliana, respectively, and the conserved amino acid characteristics for ALDHs are present, including the possible NAD~ binding site （F-V-G-S- P-G-V-G）, the catalytic site （V-T-L-E-L-G-G-K） and the Cys active site. Semi-quantitative PCR and real-time PCR analysis indicates that OsALDH22 is expressed differentially in different tissues. Various elevated levels of OsALDH22 expression have been detected when the seedlings exposed to abiotic stresses including dehydration, high salinity and abscisic acid （ABA）. Transgenic rice plants overexpressing OsALDH22 show elevated stresses tolerance. On the contrary, down- 0 regulation of OsALDH22 in the RNA interference （RNAi） repression transgenic lines manifests declined stresses tolerance.

关键词： rice (Oryza sativa) aldehyde dehydrogenase abiotic stresses stress tolerance

Significant annealing-induced hardening effect in nanolaminate d-nanotwinne d(CrCoNi)_(97.4)Al_(0.8)Ti_(1.8)me dium-entropy alloy by severe cold rolling

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Journal of Materials Science & Technology 2024年第3期170卷 156-166页

作者： Shuqing Yuan hui Fu Lei Qian Chi Fai Cheung Xu-sheng yang State Key Laboratory of Ultra-precision Machining Technology Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518060China

Due to the easy coarsening caused by poor thermal stability,the verified annealing-induced hardening in nanograined metals can only maintain at a relatively low-temperature *** this study,a nanolam-inated(CrCoNi)_(97.4)Al_(0.8)Ti_(1.8)medium-entropy alloy with an average lamellae thickness of∼20 nm embedded by thinner nanotwins was fabricated by severe cold rolling to achieve superior thermal *** with the conventional nanotwinned CrCoNi with nanotwins inside ultra-fined grains,the hier-archical nanolaminated-nanotwinned(CrCoNi)_(97.4)Al_(0.8)Ti_(1.8) exhibits a significant annealing-induced hard-ening effect,i.e.,hardness increasing from∼250 HV in the original specimen to∼500 HV in the cold-rolled status and finally∼630 HV after annealing at 600℃for 1 *** microstructure characterizations reveal that the reduced dislocation density and formation of L1_(2)ordered domain are mainly responsible for such hardening effect,which is facilitated by the effectively suppressed coarsening with annealing temperature,i.e.,slow detwinning process and well-retained low-angle nanolamellar *** coarsening mechanisms from the cold-rolled nanolamellae to the fully recrystallized micro-equiaxed structures under the annealing temperatures ranging from 400 to 800℃ were also elucidated by atomic observations.

关键词： Annealing-induced hardening Thermal stability Nanolaminated-nanotwinned structure CrCoNi Detwinning Grain boundary migration

Boundary Value Problems of Quasi-linear Ordinary Differential Equations on the Semi-infinite Interval

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Chinese Quarterly Journal of Mathematics 2006年第3期21卷 331-337页

作者： yang hui-sheng MA Yun-xin School of Mathematics and Information Science Henan Normal University Xinxiang 453002 China Department of Mathematics Jiaozuo University Jiaozuo 454001 China

Existence of positive solution is established for boundary value problems of nonsingular for a class quasi-linear ordinary differential equation on the semi-infinite interval. The results are obtained by using the non... 详细信息

关键词： positive solution quasi-linear ordinary differential equation existence

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高碳合金钢-碳素钢复焊焦炭筛板的研制

铸造技术 2005年第11期26卷 1068-1069页

作者：杨惠升大同煤矿集团有限公司煤气厂山西大同037003

从筛板结构及材质两方面介绍了所开发的高碳合金钢-碳素钢复焊焦炭筛板,该筛板由铸造筛条和低碳结构钢框架焊接而成.筛条上有若干梳齿孔,焊接时呈阶梯形状搭接,有一定的高度差,筛条材质为高碳低合金结构钢,采用精密铸造工艺生产.经实际... 详细信息

从筛板结构及材质两方面介绍了所开发的高碳合金钢-碳素钢复焊焦炭筛板,该筛板由铸造筛条和低碳结构钢框架焊接而成.筛条上有若干梳齿孔,焊接时呈阶梯形状搭接,有一定的高度差,筛条材质为高碳低合金结构钢,采用精密铸造工艺生产.经实际生产使用证明,该种筛板防堵性能良好,用于筛分焦炭,使用寿命与现有筛板相比可提高2～4倍.

关键词：筛板耐磨复焊

Antimicrobial effect of acidified nitrate and nitrite on six common oral pathogens in vitro

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Chinese Medical Journal 2006年第22期119卷 1904-1909页

作者： XIA Deng-sheng LIU Yin ZHANG Chun-mei yang sheng-hui WANG Song-lin Salivary Gland Disease Center and Molecular Laboratory for GeneTherapy Capital Medical University School of StomatologyBeijing 100050 China Beijing Institute of Dental Research Beijing 100050 China

Background Salivary nitrate is positively correlated with plasma nitrate and its level is 9 times the plasma level after nitrate loading. Nitrate in saliva is known to be reduced to nitrite by oral bacteria. Nitrate and nitrite levels in saliva are 3-5 times those in serum in physiological conditions respectively in our previous study. The biological functions of high salivary nitrate and nitrite are still not well understood. The aim of this in vitro study was to investigate the antimicrobial effects of nitrate and nitrite on main oral pathogens under acidic conditions. Methods Six common oral pathogens including Streptococcus mutans NCTC 10449, Lactobacillus acidophilus ATCC 4646, Porphyromonas gingivalis ATCC 33277, Capnocytophaga gingivalis ATCC 33624, Fusobacterium nucleatum ATCC 10953, and Candida albicans ATCC 10231 were cultured in liquid medium. Sodium nitrate or sodium nitrite was added to the medium to final concentrations of 0, 0.5, 1, 2, and 10 mmol/L. All of the microorganisms were incubated for 24 to 48 hours. The optical densities （OD） of cell suspensions were determined and the cultures were transferred to solid nutrient broth medium to observe the minimum inhibitory concentration and minimum bactericidal/fungicidal concentration for the six tested pathogens. Results Nitrite at concentrations of 0.5 to 10 mmol/L had an inhibitory effect on all tested organisms at low pH values. The antimicrobial effect of nitrite increased with the acidity of the medium. Streptococcus mutans NCTC 10449 was highly sensitive to nitrite at low pH values. Lactobacillus acidophilus ATCC 4646 and Candida albicans ATCC 10231 were relatively resistant to acidified nitrite. Nitrate at the given concentrations and under acidic conditions had no inhibitory effect on the growth of any of the tested pathogens. Conclusion Nitrite, at a concentration equal to that in human saliva, is both cytocidal and cytostatic to six principal oral pathogens in vitro, whereas nitrate at a simil

关键词： nitrite nitrate oral pathogens acidification

High-Quality and Wafer-Scale Cubic Silicon Carbide Single Crystals

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Energy & Environmental Materials 2024年第4期7卷 442-449页

作者： Guobin Wang Da sheng Yunfan yang hui Li Congcong Chai Zhenkai Xie Wenjun Wang Jiangang Guo Xiaolong Chen Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

Cubic silicon carbide (3C-SiC) has superior mobility and thermal conduction over that of widely applied hexagonal ***,much lower concentration of interfacial traps between insulating oxide gate and3C-SiC helps fabrica... 详细信息

关键词： cubic SiC high-temperature solution growth high-temperature surface tension solid–liquid interfacial energy wide band gap semiconductor

Anti-inflammatory germacrane-type sesquiterpene lactones from Vernonia sylvatica

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Chinese Journal of Natural Medicines 2024年第6期22卷 568-576页

作者： WANG Min LI Han HU Bintao TANG Chunping XU hui KE Changqiang XIE Zuoquan YE yang YAO sheng State Key Laboratory of Drug Research&Natural Products Research Center Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China University of Chinese Academy of Sciences Beijing 100049China School of Life Science and Technology Shanghai Tech UniversityShanghai 201210China State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China Zhongshan Institute for Drug Discovery Shanghai Institute of Materia MedicaChinese Academy of SciencesZhongshan 528400China

Nine new germacranolides,sylvaticalides A−H(1-9),and three known analogues(10-12)were isolated from the aeri-al part of Vernonia *** structures were established using comprehensive spectroscopic analysis,including high-resolution electrospray ionization mass spectroscopy(HR-ESI-MS)and 1D and 2D nuclear magnetic resonance(NMR)*** absolute configurations were determined by X-ray diffraction *** anti-inflammatory activities of all isolated compounds were as-sessed by evaluating their inhibitory effects on the nuclear factor kappa B(NF-κB)pathway,which was activated by lipopolysacchar-ide(LPS)-stimulated human THP1-Dual cells,and the interferon-stimulated gene(ISG)pathway,activated by STING agonist MSA-2 in the same cell *** 1,2 and 6 showed inhibitory effects on the NF-κB and ISG signaling pathways,with IC_(50)values ranging from 4.12 to 10.57μmol·L^(−1).

关键词： Vernonia sylvatica Germacrane-type sesquiterpene lactone Sylvaticalides A−H Anti-inflammatory NF-κB path-way ISG pathway

In situ tracking of the lithiation and sodiation process of disodium terephthalate as anodes for rechargeable batteries by Raman spectroscopy

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Nano Research 2024年第1期17卷 245-252页

作者： Xiu-Mei Lin Chong Han Xin-Tao yang Jia-sheng Lin Wei-Qiang yang Hong-Xu Guo Yao-hui Wang Jin-Chao Dong Jian-Feng Li Department of Chemistry and Environment Science Fujian Province University Key Laboratory of Analytical ScienceMinnan Normal UniversityZhangzhou 363000China College of Energy College of Chemistry and Chemical EngineeringCollege of MaterialsState Key Laboratory of Physical Chemistry of Solid SurfacesiChEMXiamen UniversityXiamen 361005China Institute of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China

Organic compounds represent an appealing group of electrode materials for rechargeable batteries due to their merits of biomass,sustainability,environmental friendliness,and *** terephthalate(Na_(2)C_(8)H_(4)O_(4),Na_(2)TP),an organic salt with a theoretical capacity of 255 mAh·g^(-1),is electroactive towards both lithium and ***,its electrochemical energy storage(EES)process has not been directly observed via in situ characterization techniques and the underlying mechanisms are still under ***,in situ Raman spectroscopy was employed to track the de/lithiation and de/sodiation processes of *** appearance and then disappearance of the–COOLi Raman band at 1625 cm^(-1) during the de/lithiation,and the increase and then decrease of the–COONa Raman band at 1615 cm^(-1) during the de/sodiation processes of Na2TP elucidate the one-step with the 2Li+or 2Na+transfer *** also found that the inferior cycling stability of Na2TP as an anode for sodium-ion batteries(SIBs)than lithium-ion batteries(LIBs)could be due to the larger ion radium of Na+than Li+,which results in larger steric resistance and polarization during *** Na2TP,therefore,shows greater changes in spectra during de/sodiation than de/*** expect that our findings could provide a reference for the rational design of organic compounds for EES.

关键词： disodium terephthalate(Na_(2)C_(8)H_(4)O_(4) Na2TP) in situ Raman spectroscopy de/lithiation de/sodiation mechanisms