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Search Results: 1 - 10 of 80314 matches for " HUANG Feng-Ying "
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A study on compensatory effect of corn at different growth stages to water deficit change
夏玉米不同生育阶段干湿变化的补偿效应研究

LI Feng-Ying,HUANG Zhan-Bin,
李凤英
,黄占斌

中国生态农业学报 , 2001,
Abstract: In order to understand compensatory effect of corn at different growth stages to water deficit changes,the experiment was conducted in field plots.The results showed that compensatory effect is a fundmental capacity in crop life,which can be expressed in three types:yield,growth and physiological action.Under drought at seedling stage and water-recovering at jointing stage,there is a super compensatory effect on plant growth,great yield effect,and physiological effect until tasseling stage of corn.The yield and water use efficiency decrease markedly under drought at tasseling stage,and the yield is the lowest under drought at seedling and jointing stages.
Clinical analysis of 82 cases of ectopic pregnancy treated by methotrexate combined with traditional Chinese recipe
WEI Feng-Ying
Zhong Xi Yi Jie He Xue Bao , 2003,
Abstract:
Prohibitin Attenuates Oxidative Stress and Extracellular Matrix Accumulation in Renal Interstitial Fibrosis Disease
Tian-Biao Zhou, Yuan-Han Qin, Feng-Ying Lei, Wei-Fang Huang, Gregor P. C. Drummen
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0077187
Abstract: Prohibitin is an evolutionary conserved and pleiotropic protein that has been implicated in various cellular functions, including proliferation, tumour suppression, apoptosis, transcription, and mitochondrial protein folding. Both prohibitin over- and under-expression have been implicated in various diseases and cell types. We recently demonstrated that prohibitin down-regulation results in increased renal interstitial fibrosis (RIF). Here we investigated the role of oxidative stress and prohibitin expression in RIF in unilateral ureteral obstructed rats. Lentivirus-based delivery vectors were used to knockdown or over-express prohibitin. Our results show that increased prohibitin expression was negatively correlated with the RIF index, reactive oxygen species, malon dialdehyde, transforming growth factor β1, collagen IV, fibronectin, and cell apoptosis index. In conclusion, we postulate that prohibitin acts as a positive regulator of mechanisms that counteract oxidative stress and extracellular matrix accumulation and therefore has an antioxidative effect.
Relationship between Angiotensin-Converting Enzyme Insertion/Deletion Gene Polymorphism and Susceptibility of Minimal Change Nephrotic Syndrome: A Meta-Analysis
Tian-Biao Zhou,Yuan-Han Qin,Li-Na Su,Feng-Ying Lei,Wei-Fang Huang,Yan-Jun Zhao
International Journal of Nephrology , 2011, DOI: 10.4061/2011/360357
Abstract: Aim. This meta-analysis was performed to evaluate the association between ACE I/D gene polymorphism and MCNS susceptibility. Method. A predefined literature search and selection of eligible relevant studies were performed to collect the data from electronic databases. Results. Six articles were identified for the analysis of association between ACE I/D gene polymorphism and MCNS risk, including 4 for Asians, one in Caucasian population and one for Africans. There was a markedly positive association between D allele or DD genotype and MCNS susceptibility in Asians (D: , DD: ), but not for Caucasians and Africans (Caucasians: D: , DD: ; Africans: D: , DD: ). Furthermore, the II genotype seemed not to play a protective role against MCNS risk for Asians, Caucasians and Africans ( , , , resp.). Interestingly, there was also significant association between ACE I/D gene polymorphism and MCNS susceptibility in overall populations (D: , DD: , II: ). Conclusion. D allele or DD genotype might be a significant genetic molecular marker for MCNS susceptibility in Asians and overall populations, but not for Caucasians and Africans. More larger and rigorous genetic epidemiological investigations are required to further explore this association. 1. Introduction Minimal change nephrotic syndrome (MCNS) is one of the most important histopathological characteristics in patients with idiopathic nephrotic syndrome (INS), and long-term outcome of most of the patients with this disease is favorable [1]. Some investigations suggested that genetic factors might play a key role in the pathomechanism of MCNS [2–5]. The angiotensin-converting enzyme (ACE) insertion/deletion (I/D) gene polymorphism, correlating with circulating and cellular ACE concentration, might take part in the etiology of MCNS and have been investigated in numerous epidemiologic studies at present. However, the available evidence reported to date is weak, due to sparseness of data or disagreements among studies. There is rare meta-analysis to explore the association of ACE I/D gene polymorphism with MCNS risk. We performed this meta-analysis to investigate the association between ACE I/D gene polymorphism and MCNS susceptibility, with the intention to provide a much more reliable finding on the significance of the association. 2. Materials and Methods 2.1. Search Strategy The relevant studies were screened from the search engines of PubMed, Cochrane Library, and CBM-disc (China Biological Medicine Database) on September 1, 2010. (Minimal change nephrotic syndrome OR MCNS) AND (Angiotensin converting enzyme OR
ACE I/D Gene Polymorphism Can't Predict the Steroid Responsiveness in Asian Children with Idiopathic Nephrotic Syndrome: A Meta-Analysis
Tian-Biao Zhou,Yuan-Han Qin,Li-Na Su,Feng-Ying Lei,Wei-Fang Huang,Yan-Jun Zhao
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0019599
Abstract: The results from the published studies on the association between angiotensin-converting enzyme (ACE) insertion/deletion (I/D) gene polymorphism and the treatment response to steroid in Asian children with idiopathic nephrotic syndrome (INS) is still conflicting. This meta-analysis was performed to evaluate the relation between ACE I/D gene polymorphism and treatment response to steroid in Asian children and to explore whether ACE D allele or DD genotype could become a predictive marker for steroid responsiveness.
FLUX CREEP IN HIGH Tc YBa2Cu3Oy BULK SUPERCONDUCTOR
高Tc氧化物YBa2Cu3Oy超导体中的磁通蠕动

ZHANG FENG-YING,HUANG SUN-LI,CAO XIAO-WEN,
张凤英
,黄孙利,曹效文

物理学报 , 1990,
Abstract: 利用观察磁化随时间变化的方法研究了高Tc氧化物YBa2Cu3Oy超导体临界态的磁通蠕动。实验结果表明,零场冷却的样品,加一个所选定场值的磁场,产生的磁化随对数时间线性衰减,同时伴随有磁通跳跃的发生。磁化衰减速率dM/dlnt随外场H的变化在H=3HP附近有一峰值,并认为与弱连结超导电性的存在有关。在77K以上温度,dM/dlnt随温度的升高而单调减小。讨论了钉扎磁通的热激活能U0
长江中下游夏季降水异常变化与若干强迫因子的关系
魏凤英 WEI Feng-Ying
大气科学 , 2006, DOI: 10.3878/j.issn.1006-9895.2006.02.03
Abstract: 首先,利用三次样条函数方法对1905~2000年长江中下游夏季降水量和太阳黑子、地球自转速率、赤道东太平洋海温和北极涛动等强迫因子序列进行年代际和年际尺度的分离,并分析了它们年代际尺度的位相变化特征.然后,使用30年滑动相关的方法,分析了长江中下游夏季降水量与上述各因子之间的相关随时间的变化.最后,利用旋转因子分析方法,对年代际及年际尺度因子的潜在结构对长江中下游夏季降水的影响进行了研究.结果表明,长江中下游夏季降水量和强迫因子序列均存在显著的年代际变化特征,它们之间的相关系数随时间变化呈现显著的阶段性,
The genetic structure of four populations of Oreochromis aureus by Microsatellite DNA analysis
四个奥利亚罗非鱼群体的微卫星分析

ZHANG Ting,LU Mai-Xin,YE Xing,QUAN Ying-Chun,GAO Feng-Ying,HUANG Zhang-Han,BAI Jun-Jie,
张 庭
,卢迈新,叶 星,全迎春,高风英,黄樟翰,白俊杰

水生生物学报 , 2009,
Abstract: 应用筛选到的19对微卫星引物,对四个不同来源的奥利亚罗非鱼(Oreochromis aureus)群体(奥利亚罗非鱼83系、奥利亚罗非鱼02系、奥利亚罗非鱼05系和红色奥利亚罗非鱼)的基因组DNA进行PCR扩增,分析其群体遗传结构和亲缘关系。根据几个群体在19个位点上的PCR扩增图谱,统计计算各群体的遗传多样性指数。四个群体的平均观测遗传杂合度值在0.154—0.391间;平均预期杂合度在0.181—0.428间;平均多态信息含量值在0.1513—0.3882间,说明它们的遗传多样性水平较低。遗传偏离指数D的评估结果显示这4个群体有多个位点存在不同程度的Hardy—Weinberg遗传平衡偏离。运用MicroChecker软件进行零等位基因预测,结果显示除红色奥利亚罗非鱼群体外,其他3个群体中均可能存在零等位基因位点。各群体零等位基因的位点数分别为:83系1个,02系3个,05系7个,红奥群体为0。零等位基因位点的存在可能是导致位点发生Hardy—Weinberg遗传平衡偏离的原因之一。4个群体中,05系群体与83系群体间的遗传相似性系数最高(0.9422),遗传距离最小(0.0596),说明两者亲缘关系最近;83系群体与红奥群体的遗传相似性系数最低(0.6977),遗传距离最大(0.3599),可推断两者亲缘关系最远。根据群体间的遗传距离采用UPGMA法进行聚类,结果表明:83系首先与05系聚类为一支,然后与02系群体聚类,最后与红奥群体聚类。聚类结果说明红奥群体与其他三个群体亲缘关系最远;83系群体与05系群体亲缘关系最近,与02系群体次之。
Antimalarial substances of an endophytic fungus isolated from cinchona tree
一株具有抗疟活性的金鸡纳树内生真菌的研究

ZHOU Song-Lin,CHEN Shuang-Lin,HUANG Feng-Ying,WANG Hua,ZHAO Huan-Ge,
周松林
,陈双林,黄风迎,王华,赵焕阁

菌物学报 , 2013,
Abstract: 为筛选具抗疟疾活性的的内生真菌,采用平板分离法对海南金鸡那树内生真菌进行分离纯化。利用“4日抑制疟疾”测试内生真菌发酵液的抗疟活性,采用TLC、HPLC等分析技术对内生菌发酵液等成分进行分析。从金鸡那树叶片分离到31种内生真菌,通过筛选找到了1株具有抗疟疾活性的产奎宁或奎宁类似物的内生真菌。从金鸡那树叶片中分离得到1株产奎宁的结实串孢霉属内生真菌,为奎宁的资源开发开辟了新途径。
Measurement and Analysis of Mineral Components in Grape Wine by Inductively Coupled Plasma-Optical Emission Spectrometer
Bin Du,Feng-Mei Zhu,Feng-Ying Li
Advance Journal of Food Science and Technology , 2012,
Abstract: A direct measuring method for the determination of mineral components in grape wine by Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) was developed. It was applied to six grape wines from China’s 2 major wine-producing regions-Changli in Hebei Province and Yantai in Shandong Province. Here in this study, eleven elements (Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Ni, Pb and Zn) were analyzed. The analysis was performed by heating the wine sample in an oven with acid digestion method using concentrated nitric acid (HNO3) and perchloric acid (HClO4), followed by sequential determination of the elements by ICP-OES. Typical patterns of elements obtained by the multicomponent analyses can be evaluated by multivariate data analysis to recognize the wine origins.
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