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1811篇 您的检索式:作者名="Vernon"
    题名 作者 年代 出处 被引量
1差分干涉测量技术在四川甲居滑坡监测中应用研究显示文摘选择四川省丹巴县甲居滑坡作为监测的示范,检验差分干涉测量(D-InSAR)技术在中国西南山区滑坡监测的有效性。利用差分干涉测量技术,通过EARTHVIEW软件,处理了两期Radarsat-1数据,取到了甲居滑坡的两期位移量。结果表明,甲居滑坡南北两个区域滑动速度有明显的差异,并且北部区域的滑坡边界应后移。甲居滑坡整体滑动有加快的趋势。张建龙 Vernon H.SINGHROY 李晓春 郑万模 2010成都理工大学学报(自然科学版)2010,37,5:11
2[14] Analysis of total phenols and other oxidation substrates and antioxidants by means of folin-ciocalteu reagent显示文摘Vernon L. Singleton Rudolf Orthofer Rosa M. Lamuela-Raventós 1999Methods in Enzymology1999,,:8
3South Asian High and Asian-Pacific-American Climate Teleconnection显示文摘Growing evidence indicates that the Asian monsoon plays an important role in affecting the weather andclimate outside of Asia. However, this active role of the monsoon has not been demonstrated as thoroughlyas has the variability of the monsoon caused by various impacting factors such as sea surface temperatureand land surface. This study investigates the relationship between the Asian monsoon and the climateanomalies in the Asian-Pacific-American (APA) sector. A hypothesis is tested that the variability of theupper-tropospheric South Asian high (SAH), which is closely associated with the overall heating of thelarge-scale Asian monsoon, is linked to changes in the subtropical western Pacific high (SWPH), the mid-Pacific trough, and the Mexican high. The changes in these circulation systems cause variability in surfacetemperature and precipitation in the APA region. A stronger SAH is accompanied by a stronger and moreextensive SWPH. The enlargement of the SWPH weakens the mid-Pacific trough. As a result, the southernportion of the Mexican high becomes stronger. These changes are associated with changes in atmosphericteleconnections, precipitation, and surface temperature throughout the APA region. When the SAH isstronger, precipitation increases in southern Asia, decreases over the Pacific Ocean, and increases overthe Central America. Precipitation also increases over Australia and central Africa and decreases in theMediterranean region. While the signals in surface temperature are weak over the tropical land portion,they are apparent in the mid latitudes and over the eastern Pacific Ocean.张培群 Song YANG Vernon E. KOUSKY 2005Advances in Atmospheric Sciences2005,22,6:8
4The future of plant conservation and the role of botanic gardens显示文摘1.Introduction The papers included in this special issue are mostly based on presentations made at the IABG international conference held at Shanghai Chenshan Botanical Garden.China,November 2016,which addressed the roles that botanic gardens,both in China and elsewhere,can play in national biodiversity conservation stra-Vernon H.Heywood 2017Plant Diversity2017,39,6:8
5Plant conservation in the Anthropocene-Challenges and future prospects显示文摘Despite the massive efforts that have been made to conserve plant diversity across the world during the past few decades, it is becoming increasingly evident that our current strategies are not sufficiently effective to prevent the continuing decline in biodiversity. As a recent report by the CBD indicates,current progress and commitments are insufficient to achieve the Aichi Biodiversity Targets by 2020.Threatened species lists continue to grow while the world's governments fail to meet biodiversity conservation goals. Clearly, we are failing in our attempts to conserve biodiversity on a sufficient scale.The reasons for this situation are complex, including scientific, technical, sociological, economic and political factors. The conservation community is divided about how to respond. Some believe that saving all existing biodiversity is still an achievable goal. On the other hand, there are those who believe that we need to accept that biodiversity will inevitably continue to be lost, despite all our conservation actions and that we must focus on what to save, why and where. It has also been suggested that we need a new approach to conservation in the face of the challenges posed by the Anthropocene biosphere which we now inhabit. Whatever view one holds on the above issues, it is dear that we need to review the effectiveness of our current conservation strategies, identify the limiting factors that are preventing the Aichi goals being met and at the same time take whatever steps are necessary to make our conservation protocols more explicit, operational and efficient so as to achieve the maximum conservation effect. This paper addresses the key issues that underlie our failure to meet agreed targets and discusses the necessary changes to our conservation approaches. While we can justifiably be proud of our many achievements and successes in plant conservation in the past 30 years, which have helped slow the rate of loss, unless we devise a more coherent, consistent and integrated global strategy in which both the effectiveness and limitations of our current policies, action plans and procedures are recognized, and reflect this in national strategies, and then embark on a much bolder and ambitious set of actions,progress will be limited and plant diversity will continue to decline.Vernon H.Heywood 2017Plant Diversity2017,39,6:8
6三氯生对离体鹅尾臀腺和人乳腺癌细胞脂肪酸合成酶的抑制作用显示文摘背景与目的:研究表明,人乳腺癌早期和病程中癌细胞脂肪酸合成酶(fattyacidsynthase,FAS)呈高效表达。抑制FAS可引起癌细胞凋亡。本研究采用酶促反应动力学实验观察三氯生对离体鹅尾臀腺FAS的影响,建立实验方法,研究三氯生对人乳腺癌SKBr3细胞FAS的抑制作用。方法:运用超速离心和SuperdexPG200层析技术分离纯化鹅尾臀腺FAS,用超速离心技术部分纯化人乳腺癌SKBr3细胞FAS。不同浓度三氯生与FAS相互作用不同时间后,加入底物,用分光光度法观察三氯生对FAS的抑制作用。结果:在鹅尾臀腺组,FAS被纯化为SDS-PAGE电泳单条区带(分子量250kDa),三种浓度三氯生(12.5、25.0、100.0μmol/L)与FAS在催化作用前相互作用0、5和10min,对FAS的抑制率分别为26.40%、28.30%和43.93%(12.5μmol/L);46.22%、50.28%和97.05%(25μmol/L);98.11%、97.75%和97.37%(100μmol/L)。在人乳腺癌SKBr3细胞组FAS被部分纯化,25、50、100和200μmol/L三氯生分别与FAS在催化前相互作用5min,对FAS活性的抑制率分别为20.00%、26.67%、60.00%和100.00%。结论:三氯生对离体鹅尾臀腺FAS和人乳腺癌SKBr3细胞FAS均具有抑制作用;作用强度既依赖于抑制剂浓度,又依赖于抑制剂与酶相互作用时间。王映强 赖炳森 Vernon E.Anderson 2003癌症2003,22,3:5
7急性原发性闭角型青光眼视盘水肿的OCT检查显示文摘急性原发性闭角型青光眼(APACG)属于眼科急诊,如果延误首诊诊断和治疗,则预后较差。由于角膜水肿,前房炎症,白内障和缩瞳药物的使用常导致后节体征难以检查。光学相干断层扫描(OCT)是一种非接触式无创性图象技术,可以获得眼后段组织结构高分辨率的断层图像。我们报告1例在APACG后发生视盘水肿和分支静脉阻塞的病例,进行了OCT和荧光素血管造影的检查。我们讨论了OCT图像上视盘的外观,在荧光素血管造影上还发现了静脉循环中的部分血栓。Leonard W. Yip Vernon K. Y. Yong Sek-Tien Hoh Hon-Tym Wong 陆遥(译) 2005美国医学会眼科杂志(中文版)2005,17,4:4
8The Urbanization Process and Economic Growth: The So-What Question显示文摘Vernon Henderson 2003Journal of Economic Growth2003,,1:4
9Determinants of market reactions to restatement announcements显示文摘Zoe-Vonna Palmrose Vernon J. Richardson Susan Scholz 2003Journal of Accounting and Economics2003,,1:4
10Introgression of Two Drought QTLs into FUNAABOR-2 Early Generation Backcross Progenies Under Drought Stress at Reproductive Stage显示文摘FUNAABOR-2 is a popular Ofada rice variety grown in a large area under rainfed upland condition across western states of Nigeria. We used the combination of phenotypic and marker-assisted selection(MAS) to improve grain yield of FUNAABOR-2 under drought stress(DS) at the reproductive stage via introgression of two drought quantitative trait loci(QTLs), qDTY12.1 and qDTY2.3. Foreground selection was carried out using peak markers RM511 and RM250, associated with qDTY12.1 and qDTY2.3, respectively, followed by recombinant selection with RM28099 and RM1261 distally flanking qDTY12.1. Furthermore, BC1 F2-derived introgressed lines and their parents were evaluated under DS and non-stress(NS) conditions during the 2015–2016 dry season. Overall reduction of grain yield under DS compared to NS was recorded. Introgressed lines with qDTY12.1 and qDTY2.3 combinations showed higher yield potential compared to lines with single or no QTL under DS, indicating significant positive interactions between the two QTLs under the FUNAABOR-2 genetic background. Pyramiding of qDTY12.1 and qDTY2.3 in the FUNAABOR-2 genetic background led to higher grain yield production under DS and NS.Christian Okechukwu ANYAOHA Mamadou FOFANA Vernon GRACEN Pangirayi TONGOONA Semon MANDE 2019Rice science2019,26,1:3
11Rates and risk factors for suicidal ideation,suicide attempts and suicide deaths in persons with HIV:a systematic review and meta-analysis显示文摘Background People living with HIV/AIDS(PLWHA)must contend with a significant burden of disease.However,current studies of this demographic have yielded wide variations in the incidence of suicidality(defined as suicidal ideation,suicide attempt and suicide deaths).Aims This systematic review and meta-analysis aimed to assess the lifetime incidence and prevalence of suicidality in PLWHA.Methods Publications were identified from PubMed(MEDLINE),SCOPUS,OVID(MEDLINE),Joanna Briggs Institute EBP and Cochrane Library databases(from inception to before 1 February 2020).The search strategy included a combination of Medical Subject Headings associated with suicide and HIV.Researchers independently screened records,extracted outcome measures and assessed study quality.Data were pooled using a random-effects model.Subgroup and meta-regression analyses were conducted to explore the associated risk factors and to identify the sources of heterogeneity.Main outcomes were lifetime incidence of suicide completion and lifetime incidence and prevalence of suicidal ideation and suicide attempt.Results A total of 185199 PLWHA were identified from 40 studies(12 cohorts,27 cross-sectional and 1 nested case-control).The overall incidence of suicide completion in PLWHA was 10.2/1000 persons(95%CI:4.5 to 23.1),translating to 100-fold higher suicide deaths than the global general population rate of 0.11/1000 persons.The lifetime prevalence of suicide attempts was 158.3/1000 persons(95%CI:106.9 to 228.2)and of suicidal ideation was 228.3/1000 persons(95%CI:150.8 to 330.1).Meta-regression revealed that for every 10-percentage point increase in the proportion of people living with HIV with advanced disease(AIDS),the risk of suicide completion increased by 34 per 1000 persons.The quality of evidence by Grading of Recommendations,Assessment,Development and Evaluations for the suicide deaths was graded as‘moderate’quality.Conclusions The risk of suicide death is 100-fold higher in people living with HIV than in the general population.Lifetime incidence of suicidal ideation and attempts are substantially high.Suicide risk assessments should be a priority in PLWHA,especially for those with more advanced disease.Matt Pelton Matt Ciarletta Holly Wisnousky Nicholas Lazzara Monica Manglani Djibril M Ba Vernon M Chinchillli Ping Du Anna E Ssentongo Paddy Ssentongo 2021General Psychiatry2021,34,2:3
12Emerging and re-emerging infectious diseases: Challenges and opportunities for militaries显示文摘The communal nature of living and training environments, alongside suboptimal hygiene and stressors in the field, place military personnel at higher risk of contracting emerging infectious diseases. Some of these diseases spread quickly within ranks resulting in large outbreaks, and personnel deployed are also often immunologically na?ve to otherwise uncommonly-encountered pathogens. Furthermore, the chance of weaponised biological agents being used in conventional warfare or otherwise remains a very real, albeit often veiled, threat. However, such challenges also provide opportunities for the advancement of preventive and therapeutic military medicine, some of which have been later adopted in civilian settings. Some of these include improved surveillance, new vaccines and drugs, better public health interventions and inter-agency co-operations. The legacy of successes in dealing with infectious diseases is a reminder of the importance in sustaining efforts aimed at ensuring a safer environment for both military and the community at large.Zheng Jie Marc Ho Yi Fu Jeff Hwang Jian Ming Vernon Lee 2014Journal of Medical Colleges of PLA(China)2014,29,2:3
13Externalities and Industrial Development显示文摘Vernon Henderson 1997Journal of Urban Economics1997,,3:3
14Urbanization and city growth: The role of institutions显示文摘J. Vernon Henderson Hyoung Gun Wang 2006Regional Science and Urban Economics2006,,3:2
15The agglomeration of headquarters显示文摘James C. Davis J. Vernon Henderson 2008Regional Science and Urban Economics2008,,5:2
16Where do manufacturing firms locate their headquarters?显示文摘J. Vernon Henderson Yukako Ono 2007Journal of Urban Economics2007,,2:2
17正常兔眼视网膜电图(实验研究)显示文摘视网膜电图(electroretinogram,ERG),常用为检测视网膜功能的指标。兔是首选的实验动物,在不同的实验条件下,测出正常兔眼ERG,关系着科研数据的准确性,为探索在不同颜色的正常兔眼中,ERG正常值是否有显著差异,本文设计一组实验,检测正常白兔与有色兔ERG正常值,在不同的光照适应与闪光刺激下的反应。张承芬 Vernon Odom George W.Weinstein 1990中国医学科学院学报1990,12,6:2
18[14] Analysis of total phenols and other oxidation substrates and antioxidants by means of folin-ciocalteu reagent显示文摘Vernon L. Singleton Rudolf Orthofer Rosa M. Lamuela-Raventós 1999Methods in Enzymology1999,,:2
19Conserving plants within and beyond protected areas-still problematic and future uncertain显示文摘Against a background of continuing loss of biodiversity, it is argued that for the successful conservation of threatened plant species we need to ensure the more effective integration of the various conservation actions employed, clarify the wording of the CBD targets and provide clearer operational guidance as to how they are to be implemented and their implementation monitored. The role and effectiveness of protected areas in conserving biodiversity and in particular plant species in situ are discussed as are recent proposals for a massive increase of their extent. The need for much greater effort and investment in the conservation or protection of threatened species outside protected areas where most plant diversity occurs is highlighted. The difficulties involved in implementing effective in situ conservation of plant diversity both at an area-and species/population-based level are discussed. The widespread neglect of species recovery for plants is noted and the desirability of making a clearer distinction between species recovery and reintroduction is emphasized. Key messages from a global overview of species recovery are outlined and recommendations made, including the desirability of each country preparing a national species recovery strategy. The projected impacts of global change on protected areas and on species conservation and recovery, and ways of addressing them are discussed.Vernon H.Heywood 2019Plant Diversity2019,41,2:2
20Information Asymmetry and Earnings Management: Some Evidence显示文摘Vernon J. Richardson 2000Review of Quantitative Finance and Accounting2000,,4:2
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