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现代广告 2010年第15期 103-103页

作者： Erin Mulligan nelson 刘琳(译) 不详戴尔

一个关于美国宇航局门卫的故事让我深受感动。当这位门卫被问到他的职责是什么的时候，他出人意料地答道：“我的职责是使人类能够被送往月球。“这是他所在的机构的目标，但对机构里的每个人来说，它都是清晰而伟大的。

关键词：公司品牌美国宇航局职责机构

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经济变迁的演化理论

Microbial translocation, residual viremia and immune senescence in the pathogenesis of HIV-1 infection

1997年

作者：（美）理查德·R.纳尔逊（Richard R.nelson）（美）悉尼·G.温特（Sidney G.Winter）胡世凯译

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World Journal of Clinical Infectious Diseases 2013年第4期3卷 47-57页

作者： Alessandra Fantauzzi Francesca Falasca Gabriella d’Ettorre Eugenio nelson Cavallari Ombretta Turriziani Vincenzo Vullo Ivano Mezzaroma Department of Clinical Medicine University of Rome Department of Molecular Medicine University of Rome Department of Public Health and Infectious Diseases University of Rome

The pathophysiological mechanisms that underlie the progression of human immunodeficiency virus-1(HIV-1) disease to full-blown AIDS are not well understood. Findings suggest that, during HIV-1 infection, plasma lipopolysaccharide(LPS) levels, which are used as an indicator of microbial translocation(MT), are elevated throughout the acute and chronic phases of HIV-1 disease. The translocation of bacterial products through the damaged gastrointestinal barrier into the systemic circulation has been described as a driver of immune activation. In contrast, comorbidities that are associated with HIV-1 infection have been attributed to chronic inflammation and immune system dysfunction secondary to MT or low-level HIV-1 replication in plasma and cell reservoirs. Moreover, accelerated aging is significantly associated with chronic inflammation, immune activation, and immune senescence. In this review, we aimed to investigate the role of inflammation as a pivotal marker in the pathogenesis of HIV-1 disease. We will discuss the key features of chronic inflammation and immune activation that are observed during the natural course of the disease and those features that are detected in c ART-modified infection. The review will focus on the following aspects of HIV-1 infection:(1) MT;(2) the role of residual viremia; and(3) "immune senescence" or "inflammaging." Many questions remain unanswered about the potential mechanisms that are involved in HIV-1 pathogenesis. Further studies are needed to better investigate the mechanisms that underlie immune activation and their correlation with HIV-1 disease progression.

关键词： Human immunodeficiency virus-1 Combined antiretroviral therapy Immune activation Microbial translocation Residual viremia Immune senescence

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天底下最伟大的父亲

人生十六七 2004年第7期 20-20页

作者： Resa nelson 杨柳岸

布鲁斯没料到,自己引以为耻的父亲,曾经被自己冷漠甚至伤害的父亲,会在自己最需要的时候,给予自己无比的信任。

关键词：布鲁斯父亲母亲橄榄球同伴警察伤害信任校长学校

Chemical Composition and Allelopathic Activity of <i>Parthenium hysterophorus</i>and <i>Ambrosia polystachya</i>Weeds Essential Oils

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American Journal of Plant Sciences 2014年第9期5卷 1248-1257页

作者： Cíntia Alvarenga S. F. de Miranda Maria das G. Cardoso Maria Laene M. de Carvalho Ana Cristina S. Figueiredo David L. nelson Christiane M. de Oliveira Marcos de S. Gomes Juliana de Andrade Josefina A. de Souza Luiz R. Marques de Albuquerque Department of Agricuture Federal University of Lavras Lavras Brazil Department of Chemistry Federal University of Lavras Lavras Brazil Federal University of the Jequitinhonha and Mucuri Valleys Diamantina Brazil Universidade de Lisboa Faculdade de Ciências de Lis-boa DBV Instituto de Biotecnologia e Bioengenharia Centro de Biotecnologia Vegetal C2 Campo Grande Lisboa Portugal

The volatile constituents of the essential oils from leaves from the weed plants Parthenium hysterophorus and Ambrosia polystachya were identified and quantified by GLC-MS and GLC. Allelopathic activities were determined by methods that evaluated the volatile effects and the direct application of these essential oils on the seed germination and seedling vigor of lettuce. We identified 27 compounds in the essential oil from P. hysterophorus, and the main constituents were germacrene-D (35.9%), trans-β-ocimene (8.5%) and β-myrcene (7.6%). In the essential oil from A. polystachya, 40 constituents were identified and the principal compounds were germacrene-D (29.3%), trans-β-ocimene (13.6%) and β-caryophyllene (9.8%). In both methods, the essential oil from A. polystachya presented a greater potential for reducing seed germination and seedling vigor in lettuce than the essential oil from P. hysterophorus, and this activity might be attributed to its higher content of monoterpenes.

关键词： Volatile Oils Allelopathy Asteraceae

AtDREB2A-CA Influences Root Architecture and Increases Drought Tolerance in Transgenic Cotton

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Agricultural Sciences 2017年第10期8卷 1195-1225页

作者： Maria Eugenia Lisei-de-Sa Fabricio B.M.Arraes Giovani G.Brito Magda A.Beneventi Isabela T.Lourenco-Tessutti Angelina M.M.Basso Regina M.S.Amorim Maria C.M.Silva Muhammad Faheem nelson G.Oliveira Junya Mizoi Kazuko Yamaguchi-Shinozaki Maria Fatima Grossi-de-Sa Embrapa Recursos Genéticos e Biotecnologia BrasíliaBrazil Empresa de Pesquisa Agropecuária de Minas Gerais UberabaBrazil Universidade Federal do Rio Grande do Sul Porto AlegreBrazil Embrapa Clima Temperado PelotasBrazil Universidade de Brasília BrasíliaBrazil Embrapa Agroenergia BrasíliaBrazil Japan International Research Center for Agricultural Sciences(JIRCAS) TsukubaJapan Universidade Catolica de Brasilia BrasiliaBrazil

Drought is a major environmental factor limiting cotton (Gossypium hirsutum L.) productivity worldwide and projected climate changes could increase their negative effects in the future. Thus, targeting the molecular mechanisms correlated with drought tolerance without reducing productivity is a challenge for plant breeding. In this way, we evaluated the effects of water deficit progress on AtDREB2A-CA transgenic cotton plant responses, driven by the stress-inducible rd29 promoter. Besides shoot and root morphometric traits, gas exchange and osmotic adjustment analyses were also included. Here, we present how altered root traits shown by transgenic plants impacted on physiological acclimation responses when submitted to severe water stress. The integration of AtDREB2A-CA into the cotton genome increased total root volume, surface area and total root length, without negatively affecting shoot morphometric growth parameters and nor phenotypic evaluated traits. Additionally, when compared to wild-type plants, transgenic plants (17-T0 plants and its progeny) highlighted a gradual pattern of phenotypic plasticity tosome photosynthetic parameters such as photosynthetic rate and stomatal conductance with water deficit progress. Transgene also promoted greater shoot development and root robustness (greater and deeper root mass) allowing roots to grow into deeper soil layers. The same morpho-physiological trend was observed in the subsequent generation (17.6-T2). Our results suggest that the altered root traits shown by transgenic plants are the major contributors to higher tolerance response, allowing the AtDRE2A-CA-cotton plants to maintain elevated stomatal conductance and assimilate rates and, consequently, reducing their metabolic costs involved in the antioxidant responses activation. These results also suggest that these morpho-physiological changes increased the number of reproductive structures retained per plant (26% higher) when compared with its non-transgenic cou

关键词： Dehydration Responsive Element Binding Factors Water Deficit Tolerance Gossypium hirsutum Physiological Phenotyping Transcription Factor Stress-Inducible Promoter

喜马拉雅和西藏高原深地震反射剖面的数据采集工作

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地球物理学报 1993年第1期36卷 126-126页

作者：车敬凯 K.D.nelson M.L.Hauck 郭景如卢德源武长得 L.D.Brown 中国地质矿产部北京计算中心北京100083 美国锡拉丘兹大学地质系美国康乃尔大学大陆研究所中国地质科学院岩石圈研究中心北京100037

喜马拉雅和西藏高原深地震反射剖面(INDEPTH)先导性试验剖面位于喜马拉雅山脉,北起西藏康马县的萨马达,南到西藏帕里。近南北向的剖面长约100km(INDEPTH-1),东西向横剖面长为8.6km(INDEPTH-2)。每隔2km测一次低速带。与反射地震工作一... 详细信息

喜马拉雅和西藏高原深地震反射剖面(INDEPTH)先导性试验剖面位于喜马拉雅山脉,北起西藏康马县的萨马达,南到西藏帕里。近南北向的剖面长约100km(INDEPTH-1),东西向横剖面长为8.6km(INDEPTH-2)。每隔2km测一次低速带。与反射地震工作一起还开展了“宽角反射”及“三维地震”测量。最大的震源一接收点偏移距为140—150km。由于地形条件十分困难,INDEPTH-1取弯线,INDEPTH-2取直线。

关键词：地震反射喜马拉雅 INDEPTH

INDEPTH-Ⅱ地表地质有关藏南滑脱体系的新证据

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INDEPTH-Ⅱ地表地质有关藏南滑脱体系的新证据

1995年中国地球物理学会第十一届学术年会

作者：李冀湘岳永君赵文津 W．S．F．Kidd M．Edwards 武长得 K．D．nelson 中国地质科学院中国地质科学院中国地质科学院美国纽约州立大学Albany分校地质系美国纽约州立大学Albany分校地质系美国Syracuse大学地球科学系美国Syracuse大学地球科学系

＜正＞INDEPTH-Ⅱ地表地质工作主要围绕深反射地震剖面进行,藏南滑脱系（STDS）这样具有重大意义的构造也是工作的重点。STDS首先由Burg（1983）确定,Burchfiel等（1992）在几个地区对此进行了描述。STDS引起藏南喜马拉雅地区地壳上部...

＜正＞INDEPTH-Ⅱ地表地质工作主要围绕深反射地震剖面进行,藏南滑脱系（STDS）这样具有重大意义的构造也是工作的重点。STDS首先由Burg（1983）确定,Burchfiel等（1992）在几个地区对此进行了描述。STDS引起藏南喜马拉雅地区地壳上部大规模的伸展运动,与较深构造层次的缩短作用同时进行。有证据表明STDS沿整个喜马拉雅地区都发育,这次工作我们详细调查了康马县涅如谷地和洛扎县雄曲谷地的伸展构造,得到了一些有关STDS和东西向伸展作用的新证据。

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调低个税能否刺激经济？

环球科学 2011年第12期 16-16页

作者：布琳·尼尔森（Bryn nelson）赵瑾（翻译）

对于个人所得税率和政府规模的争论．美国共和党与民主党一直都是精于辩词，疏于实据。个人所得税率下调，美国人民会因此牲省部分开销，那么在这部分钱的使用上，最近发表的研究报告会持何种看法呢？如果美国政府不埘百万富翁和亿万富... 详细信息

对于个人所得税率和政府规模的争论．美国共和党与民主党一直都是精于辩词，疏于实据。个人所得税率下调，美国人民会因此牲省部分开销，那么在这部分钱的使用上，最近发表的研究报告会持何种看法呢？如果美国政府不埘百万富翁和亿万富翁下调税率，经济发展足否会因此放慢？

关键词：刺激经济个人所得税率个税调低美国政府政府规模亿万富翁百万富翁