维普中文期刊产品整合服务
53篇 您的检索式:作者名="Fengmei Wang"
    题名 作者 年代 出处 被引量
1Nutritional Status of Children during and post-Global Economic Crisis in China显示文摘Objective To describe the impact of the global economic crisis on the nutritional status of children in China during and after the crisis.Methods Data from 1990 to 2010 were sourced from the National Food and Nutrition Surveillance System.Approximately 16 000 children under 5 years old were selected using a stratified random cluster method from 40 surveillance sites.Anthropometric and hemoglobin measurements for children under 5 were conducted.Nutritional status was determined according to WHO child growth standards.Results Prevalence of underweight and stunting in children under 5 had a downward trend.Underweight prevalence was close to normal (less than 5%),with prevalence of stunting 12.6% in 2009 and 12.1% in 2010 in rural areas.Prevalence of stunting in infants under 6 months and 6‐12 months old in poorer rural areas increased from 5.7%‐9.1% and 6.7%‐12.5%,respectively,in 2008‐2009.This trend also continued post‐crisis in 2010.Prevalence of stunting in children left behind by mothers was 20%‐30% higher than in children the same age in general and poorer rural areas.Prevalence of anemia in children did not change in rural areas,but prevalence of anemia in all age groups increased in poorer rural areas,especially in children under 24 months old.Level reached 30%‐40% in 2009,and fluctuated in 2010.Conclusion The nutritional status of children under 5 was comparatively stable during and after the global economic crisis,attributable to the Chinese government's policy response.The nutritional status in poorer rural areas fluctuated in response to the economic crisis and,thus,relevant action and intervention must be taken immediately to help the most vulnerable population in poorer rural areas.A proper national nutritional strategy for children under 2 years old,including nutrition supplementation for pregnant women and in‐home fortification for complementary feeding,should be initiated.CHEN ChunMing HE Wu WANG YuYing DENG LiNa JIA FengMei 2011Biomedical and Environmental Sciences2011,24,4:22
2Endothelial Nitric Oxide Synthase Gene Intron 4, 27 bp Repeat Polymorphism and Essential Hypertension in the Kazakh Chinese Population显示文摘为了调查在 27 bp 之间的关系,在内含子 4in 重复多型性 endothelial 在 KazakhChinese 人口的氮的氧化物合酶( eNOS4 )基因和必要高血压,有必要高血压和 138 个健康的人的 151 个病人在 Xinjiang uygur 从 Shawan 区域的 Boertonggu 农村被选择中国 in2006 的自治区域。在二个组的 eNOS 的多型性与聚合酶链反应试金被检测,在每个组的遗传型频率是计算的跟随 Hardy-Weinberg 法律。Fourand 27 bp 重复的五辆双人脚踏车是被指明一 and “ b' 分别地。b/b, b/a 和 eNOS4 基因的 a/a 遗传型的频率在控制组是 84.06% , 15.22% 和 0.72% ,这被发现,并且 81.46% , 15.89% 和 2.65% 分别地在高血压组织。基因的频率一 and “ b' 在控制组是 91.67% 和 8.33% , 89.40% 和 10.60% 分别地在高血压组织。血浆 eNOS 活动没与 eNOS 基因的遗传型和等位基因被联系,这被发现。在高血压组的血浆 eNOS 活动显著地与控制组(P<0.01 ) 相比被减少。结果建议 eNOS4 基因多型性是不大可能的是为在 Xinjiang 哈萨克人口的必要高血压的主要基因危险性因素。然而,在血浆 eNOS 活动之间的一个积极协会和必要高血压被揭示了。Fengmei DENG Qinghua HU Bin TANG Fang HE Shuxia GUO Jiang CHEN Feng LI Xuehua WU Jun ZHANG Huimin ZHANG Juan ZHAO Hua ZHONG Ling HE Jun LI Le ZHANG Shuren WANG 2007Acta Biochimica et Biophysica Sinica2007,39,5:18
3Genome-wide Identification and Classification of HSF Family in Grape, and Their Transcriptional Analysis under Heat Acclimation and Heat Stress显示文摘Heat stress is one of the most serious threats in viticulture. Heat shock transcription factors(HSFs) have been proven to be the most important transcriptional factor family in the plant response to heat. In this study, a total of 19 putative HSF genes(VHSFs) were identified from the 12 × Vitis vinifera Pinot Noir PN4002 genome, and their chromosomal location, phylogenetic tree, exon-intron structure and conserved motifs were also analyzed. In addition, these HSFs transcriptional profiles in Vitis vinifera 'Jingxiu'(weak heat tolerance) and Vitis davidii 'Tangwei'(strong heat tolerance) under heat stress(47℃) and heat acclimation(38℃) were presented. Only VHSF01, VHSF05, VHSF15 and VHSF18 among 19 VHSFs showed different transcriptional models in these two genotypes under the same treatment, suggesting that these four VHSFs may be important factors which result in a thermotolerance difference between 'Jingxiu' and 'Tangwei'. This study provides novel insights into the response of 19 VHSFs to heat stress in the grape and suggests that potential key VHSFs in grape thermotolerance have great implications for molecular breeding in grapes.LIU Guotian CHAI Fengmei WANG Yi JIANG Jinzhu DUAN Wei WANG Yuting WANG Fangfang LI Shaohua WANG Lijun 2018Horticultural Plant Journal2018,4,4:13
4Disease profile and plasma neutralizing activity of postvaccination Omicron BA.1 infection in Tianjin,China:a retrospective study显示文摘Dear Editor,SARS-CoV-2 Omicron variant BA.1 first emerged on the Chinese mainland on January 8,2022,in Tianjin and caused a large wave of infections.1 Four rounds of mass testing of its~14 million residents were launched on January 9,12,15,and 20,respectively.As of February 7,2022,a total of 430 individuals were tested positive for Omicron BA.1,with no new infections detected for the following 16 days.In the Chinese mainland,the most delivered vaccines are inactivated vaccines.As of January 8,2022,up to 93.2%of Tianjin’s residents had been vaccinated with at least one dose.2 We investigated the protection conferred by vaccination against Omicron BA.1 by examining the breakthrough infections among vaccinees as compared with unvaccinated cases.Our study population comprised all 430 cases during the outbreak of Omicron BA.1 in Tianjin.Hong Zheng Yunlong Cao Xiaosu Chen Fengmei Wang Ye Hu Weiliang Song Yangyang Chai Qingqing Gu Yansong Shi Yingmei Feng Shuxun Liu Yan Xie Xiaoliang Sunney Xie Wentao Jiang Zhongyang Shen 2022Cell Research2022,32,8:12
5Chinese herbal medicine reduces mortality in patients with severe and critical coronavirus disease 2019: a retrospective cohort study显示文摘This study aimed to evaluate the efficacy of Chinese herbal medicine(CHM)in patients with severe/critical coronavirus disease 2019(COVID-19).In this retrospective study,data were collected from 662 patients with severe/critical COVID-19 who were admitted to a designated hospital to treat patients with severe COVID-19 in Wuhan before March 20,2020.All patients were divided into an exposed group(CHM users)and a control group(non-users).After propensity score matching in a 1:1 ratio,156 CHM users were matched by propensity score to 156 non-users.No significant differences in seven baseline clinical variables were found between the two groups of patients.All-cause mortality was reported in 13 CHM users who died and 36 non-users who died.After multivariate adjustment,the mortality risk of CHM users was reduced by 82.2%(odds ratio 0.178,95%CI 0.076–0.418;P<0.001)compared with the non-users.Secondly,age(odds ratio 1.053,95%CI 1.023–1.084;P<0.001)and the proportion of severe/critical patients(odds ratio 0.063,95%CI 0.028–0.143;P<0.001)were the risk factors of mortality.These results show that the use of CHM may reduce the mortality of patients with severe/critical COVID-19.Guohua Chen Wen Su Jiayao Yang Dan Luo Ping Xia Wen Jia Xiuyang Li Chuan Wang Suping Lang Qingbin Meng Ying Zhang Yuhe Ke An Fan Shuo Yang Yujiao Zheng Xuepeng Fan Jie Qiao Fengmei Lian Li Wei Xiaolin Tong 2020Frontiers of Medicine2020,14,6:10
6Single-Atom Catalysts for Electrochemical Hydrogen Evolution Reaction: Recent Advances and Future Perspectives显示文摘Hydrogen,a renewable and outstanding energy carrier with zero carbon dioxide emission,is regarded as the best alternative to fossil fuels.The most preferred route to large-scale production of hydrogen is by water electrolysis from the intermittent sources(e.g.,wind,solar,hydro,and tidal energy).However,the efficiency of water electrolysis is very much dependent on the activity of electrocatalysts.Thus,designing high-effective,stable,and cheap materials for hydrogen evolution reaction(HER)could have a substantial impact on renewable energy technologies.Recently,single-atom catalysts(SACs)have emerged as a new frontier in catalysis science,because SACs have maximum atom-utilization efficiency and excellent catalytic reaction activity.Various synthesis methods and analytical techniques have been adopted to prepare and characterize these SACs.In this review,we discuss recent progress on SACs synthesis,characterization methods,and their catalytic applications.Particularly,we highlight their unique electrochemical characteristics toward HER.Finally,the current key challenges in SACs for HER are pointed out and some potential directions are proposed as well.Zonghua Pu Ibrahim Saana Amiinu Ruilin Cheng Pengyan Wang Chengtian Zhang Shichun Mu Weiyue Zhao Fengmei Su Gaixia Zhang Shijun Liao Shuhui Sun 2020Nano-Micro Letters2020,12,2:10
7Effects of high-frequency oscillatory ventilation and conventional mechanical ventilation on oxygen metabolism and tissue perfusion in sheep models of acute respiratory distress syndrome显示文摘Liu Songqiao Huang Yingzi Wang Maohua Chen Qiuhua Liu Ling Xie Jianfeng Tan Li Guo Fengmei Yang Congshan Pan Chun Yang Yi Qiu Haibo 2014Chinese Medical Journal2014,,18:6
8Geochronology,Geochemistry and Petrogenesis of Diabase Dyke Swarms in East Tianshan,Xinjiang,NW China显示文摘Diabase dyke swarms are widespread in the East Tianshan and Beishan regions. LA-ICP-MS zircon U-Pb ages of these diabase vary from 305 Ma to 278 Ma, showing that these dykes were formed during Late Carboniferous-Early Permian magmatism. All diabase samples are subalkali calc-alkali, characterized by slight LREE and LILEs enrichment, and weak negative Ti, Nb and Ta anomalies. The diabase samples have positive εNd(t) values (>+3), high Sr isotopic compositions (initial 87Sr/86Sr values=0.7030-0.7097), and large variation of Pb isotopic compositions, indicating they were derived from a deplete mantle source. Regional geology and geochemistry evidences indicate that these diabase dyke swarms were generated in a lithosphere extensional setting and had the same magma sources. Initial magmas may be a mixture of depleted asthenosphere mantle and enriched lithospheric mantle during rapid magma ascending.ZHANG Zuoheng CHAI Fengmei WANG Tuanhua CHENG Yanbo XU Lingang YUAN Shunda 2012Acta Geologica Sinica(English Edition)2012,86,6:5
9Safety and efficacy of Yupingfeng granules in children with recurrent respiratory tract infection:A randomized clinical trial显示文摘Importance:Recurrent respiratory tract infection(RRTI)is common in children.Inappropriate RRTI treatment will lead to asthma and other diseases,thereby seriously affecting the growth and physical health of children.Immune function modulation can prevent and alleviate childhood RRTI.Yupingfeng(YPF),a patented traditional Chinese medicine(TCM),has immunomodulatory effects and is widely used in China to treat children with RRTI.Objective:To evaluate the safety and efficacy of YPF monotherapy in treating children with RRTI.Methods:This multicenter,randomized,double-blind,double-simulation,noninferiority clinical trial was conducted from January 2015 to August 2017,with an 8-week treatment period and 52-week follow-up after the drug withdrawal.Children aged 2–6 years with RRTI meeting the inclusion and exclusion criteria were enrolled in 13 hospitals in China and divided randomly into three groups(2:2:1 ratio)to receive YPF,pidotimod,or placebo.The primary outcome was the proportion of RRTI returning to normal standard level during the follow-up.The secondary outcomes were reduction in the number of RRTI recurrences,effect on clinical symptoms(in accord with TCM practice),effect per symptom,and safety.The trial was registered at the Chinese Clinical Trials Registry(www.chictr.org.cn)under the unique identifier ChiCTR-IPR-15006847.Results:Three hundred and fifty-one children were enrolled and randomly assigned to 3 groups;124,125,and 61 children in the YPF,pidotimod,and placebo groups,respectively,had completed the trial.During the follow-up,the proportion of RRTI returning to normal standard level was 73.13%,67.15%,and 38.81%with YPF,pidotimod,and placebo,respectively(P<0.0001).The proportion of cases who returned to normal standard level in the YPF group was 34.32%higher than that in the placebo group.The safety profile did not significantly differ among the groups.Interpretation:YPF granules were noninferior to the active control drug pidotimod oral solution for the treatment of RRTI in children,and were superior to placebo,with a high safety profile.Baoping Xu Xinmin Li Siyuan Hu Yixiao Bao Fengmei Chen Zhimin Chen Yonggang Du Enmei Liu Yufeng Liu Qinghui Mou Baoling Su Bo Wang Jianwen Xu Guiping Xu Qiaozhi Yang Liwei Gao Xiaohui Liu Lei Li Rong Ma Kunling Shen 2022Pediatric Investigation2022,6,2:3
1096-Week Treatment of Tenofovir Amibufenamide and Tenofovir Disoproxil Fumarate in Chronic Hepatitis B Patients显示文摘Background and Aims:Tenofovir amibufenamide(TMF)is a novel phosphoramidated prodrug of tenofovir with nonin-ferior efficacy and better bone and renal safety to tenofovir disoproxil fumarate(TDF)in 48 weeks of treatment.Here,we update 96-week comparison results.Methods:Patients with chronic hepatitis B were assigned(2:1)to receive either 25 mg TMF or 300 mg TDF with matching placebo for 96 weeks.The virological suppression was defined as HBV DNA levels<20 IU/mL at week 96.Safety was evaluated thoroughly with focusing on bone,renal,and metabolic pa-rameters.Results:Virological suppression rates at week 96 were similar between TMF and TDF group in both HBeAg-positive and HBeAg-negative populations.Noninferior efficacy was maintained in the pooled population,while it was first achieved in patients with HBV DNA≥7 or 8 log10 IU/mL at baseline.Non-indexed estimated glomerular filtration rate for renal safety assessment was adopted,while a smaller decline of which was seen in the TMF group than in the TDF group(p=0.01).For bone mineral density,patients receiv-ing TMF displayed significantly lower reduction levels in the densities of spine,hip,and femur neck at week 96 than those receiving TDF.In addition,the lipid parameters were stable after week 48 in all groups while weight change still showed the opposite trend.Conclusions:TMF maintained similar efficacy at week 96 compared with TDF with continued superior bone and renal safety profiles(NCT03903796).Zhihong Liu Qinglong Jin Yuexin Zhang Guozhong Gong Guicheng Wu Lvfeng Yao Xiaofeng Wen Zhiliang Gao Yan Huang Daokun Yang Enqiang Chen Qing Mao Shide Lin Jia Shang Huanyu Gong Lihua Zhong Huafa Yin Fengmei Wang Peng Hu Qiong Wu Chao Pan Wen Jia Chuan Li Chang’an Sun Junqi Niu Jinlin Hou TMF Study Group 2023Journal of Clinical and Translational Hepatology2023,11,3:3
11Comparative toxicity study of a novel non-ionic surfactant,vanillin ethoxylates, and nonylphenol ethoxylates in Chinese hamster ovary cells in vitro显示文摘Surfactants such as alkylphenol polyethoxylates(APEOs) and nonylphenol ethoxylates(NPEOs) are commonly used worldwide, but the majority of these compounds, together with their metabolites, have been reported to induce severe biological toxicity. Here, we evaluated for the first time the cytotoxicity,genotoxicity and mitochondrial damage in Chinese hamster ovary(CHO-K1) cells caused by a novel non-ionic surfactant, vanillin ethoxylates(VAEOs), an alternative to APEOs. In parallel, the same in vitro bioassays were conducted on NPEOs along with their metabolic byproducts 4-nonylphenol(4-NP) and vanillin. The results showed that the cytotoxic potency order was NPEOs > 4-NP > VAEOs>vanillin using CCK-8 assays. Also, 4-NP showed potential direct DNA damage in SOS/umu tests, whereas NPEOs, VAEOs and vanillin showed no positive result with and without S9 addition. In addition, none of the test compounds showed obvious genotoxic effects with low olive tail moment value using comet assays. However, all test compounds were shown to cause mitochondrial impairment by increasing mitochondrial mass and decreasing mitochondrial membrane potential in a concentration-dependent manner. And further analysis of reactive oxygen species(ROS) and mitochondrial superoxide(MNSOD)measurement showed that mitochondrial impairment was induced by oxidative stress with intracellular ROS and MNSOD overproduction. It's worth noting that VAEOs and vanillin cause relative lower cytotoxic, genotoxic and mitochondrial damage effects than NPEOs and 4-NP, indicating that VAEOs have the potential to substitute NPEOs as suitable surfactants. Take together, this study elucidates the toxicity profiles of VAEOs and NPEOs relatively comprehensively, and further toxicity analyses are suggested in the population, community and ecosystem.Shengwu Yuan Xiaoya Ji Mei Ma Fengmei Ding Kaifeng Rao Zijian Wang Rong Yang Yihong Liu 2019Journal of Environmental Sciences2019,31,8:3
12Synthesis of Zeolites by Alkaline Activation of Fly Ash显示文摘In terms of mineral transformation, and chemical composition of acid-soluble component as a function of reaction time, the effect of alkaline solution on zeolite-like fly ash was studied by employing fly ash and NaOH solution as starting materials. When fly ash and 1-10mol/L NaOH solution were processed at 100 ℃ for 24h with 1:10 W/S ratio in a relatively closed system, powder XRD patterns of resulting products indicated the formation of various zeolites. Zeolite P crystallized early at low alkaline concentration, which was replaced then by zeolites X and A. At high concentration, hydroxy sodalite was the only new phase. Quartz, in fly ash and NaOH solution system, gradually dissolved, and mullite, however, remained stable. It was concluded that, with Al/Si and Na/Si finally reaching equilibrium in molar ratio, composition of starting mixtures affects the crystallization of zeolite from fly ash.Hua wang, Qiang Zhang, Cunyi Song, Fengmei Liu Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China 2001Journal of University of Science and Technology Beijing2001,8,3:2
13Immunogenicity and protective efficacy of a recombinant protein subunit vaccine and an inactivated vaccine against SARS-CoV-2 variants in non-human primates显示文摘Emerging SARS-CoV-2 variants and the gradually decreasing neutralizing antibodies over time post vaccination have led to an increase in incidents of breakthrough infection across the world.To investigate the potential protective effect of the recombinant protein subunit COVID-19 vaccine targeting receptor-binding domain(RBD)(PS-RBD)and whole inactivated virus particle vaccine(IV)against the variant strains,in this study,rhesus macaques were immunized with PS-RBD or IV vaccine,followed by a Beta variant(B.1.351)challenge.Although neutralizing activity against the Beta variant was reduced compared with that against the prototype,the decreased viral load in both upper and lower respiratory tracts,milder pathological changes,and downregulated inflammatory cytokine levels in lung tissues after challenge demonstrated that PS-RBD and IV still provided effective protection against the Beta variant in the macaque model.Furthermore,PS-RBD-induced macaque sera possessed general binding and neutralizing activity to Alpha,Beta,Delta,and Omicron variants in our study,though the neutralizing antibody(NAb)titers declined by varying degrees,demonstrating potential protection of PS-RBD against current circulating variants of concern(VOCs).Interestingly,although the IV vaccine-induced extremely low neutralizing antibody titers against the Beta variant,it still showed reduction for viral load and significantly alleviated pathological change.Other correlates of vaccine-induced protection(CoP)like antibody-dependent cellular cytotoxicity(ADCC)and immune memory were both confirmed to be existing in IV vaccinated group and possibly be involved in the protective mechanism.Qian He Qunying Mao Xiaozhong Peng Zhanlong He Shuaiyao Lu Jialu Zhang Fan Gao Lianlian Bian Chaoqiang An Wenhai Yu Fengmei Yang Yanan Zhou Yun Yang Yanyan Li Yadi Yuan Xujia Yan Jinghuan Yang Xing Wu Weijin Huang Changgui Li Junzhi Wang Zhenglun Liang Miao Xu 2022Signal Transduction and Targeted Therapy2022,7,4:2
14Study on Seed Germination Conditions and in vitro Tissue Culture of Lilium formolongi显示文摘To facilitate the rapid production of lily(Lilium formolongi),conditions favoring the germination of dormant lily seeds and in vitro regeneration from tissue culture were studied,using the germinating plumule as the explants.The optimal inducing conditions for dormant lily dry seeds to germinate were low temperature(10 ℃) treatment for one hour followed by incubating at 18 ℃ with light illumination.After 8 days of incubation/induction,over 90% of the seeds were germinated.MS+6-BA 1.0 mg/L +NAA 0.5 mg/L was the most efficient medium formula in lily callus induction.MS+6-BA 2.0 mg/L +NAA 0.5 mg/L was the optimal medium for calli growth.1/2MS+NAA 1.0 mg/L was the medium gave the highest root inductive rate.Bo WANG Yongping ZHU Xiaojie QIN Qiongjie LI Xiaoqiao WANG Fengmei HE 2012Agricultural Biotechnology2012,1,3:2
15Flow behavior modeling of the 7050 aluminum alloy at elevated temperatures considering the compensation of strain显示文摘Jiang Li Fuguo Li Jun Cai Ruiting Wang Zhanwei Yuan Fengmei Xue 2012Materials and Design2012,,:2
16BILEVEL PROGRAMS WITH MULTIPLE FOLLOWERS显示文摘In this paper, we are concerned with bilevel programs with multiple followers. Three new solution concepts are introduced for a bilevel programming problem with multiple followers. First, one sufficient condition for the existence of a Nash equilibrium reaction is presented and the continuity of the reaction set is discussed. Next, we show that a class of bilevel programs with multiple followers can be solved via solving a corresponding bilevel program with a single follower. Finally on the basis of a theorem proved via applying the Kuhn-Tucker conditions to the inner game problem, a branch and bound technique is developed for bilevel program with multiple followers. Two numerical examples are also given to illustrate the algorithm.WANG Qian(Department of Industrial Engineering, State University of New York at Buffalo,Buffalo, NY 14260, USA)YANG Fengmei(Depariment of Applied Mathematics and Physics, Beijing University of Chemical Technology,Beijing 100029, China)WANG Shouyang(Instit 2000Systems Science and Mathematical Sciences2000,13,3:2
17Synthesis and hydrogen reduction of nano-sized copper tungstate powders produced by a hydrothermal method显示文摘Douqin Ma Jingpei Xie Jiwen Li Shu Liu Fengmei Wang Huijie Zhang Wenyan Wang Aiqin Wang Haoliang Sun 2014International Journal of Refractory Metals and Hard Materials2014,,:1
18Analysis of alkaloids in Coptis chinensis Franch by accelerated solvent extraction combined with ultra performance liquid chromatographic analysis with photodiode array and tandem mass spectrometry detections显示文摘Junhui Chen Fengmei Wang Jie Liu 2008Analytica Chimica Acta2008,613,2:1
19Microstrueture and mechanical properties of 12wt% ferritic stainless steel with Ti and Nb dual stabilization显示文摘Wang Lixin Song Changjiang Sun Fengmei 2009Material and Design2009,30,:1
20Microstructure and mechanical properties of 12wt%Cr ferritic stainless steel with Ti and Nb dual stabilization 显示文摘Wang Lixin Song Changjiang Sun Fengmei 2009Materials and Design2009,30,:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费