检索结果-南通市图书馆

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

茶壶烈酒一个唐人街家庭的回忆录

Water and nutrient and energy systems in urbanizing watersheds

丛书名：书城文库

1999年

作者：（美）布鲁斯·爱德华·何（bruce Edward hall）闵锐武译

来源：汇雅图书（南通市图书馆... 评论

在线全文

汇雅图书（南通市图书馆）

学校读者我要写书评

暂无评论

Frontiers of Environmental Science & Engineering 2012年第5期6卷 596-611页

作者： Rodrigo VILLARROEL WALKER Michael bruce BECKl, Jim W. hall Warnell School of Forestry & Natural Resources University of Georgia Athens GA 30602-2152 USA Environmental Change Institute University of Oxford Oxford University Centre for the Environment South Parks Road Oxford OXI 3QY UK

Driven by considerations of sustainability, it has become increasingly difficult over the past 15-20 years -- at least intellectually -- to separate out the water infrastructure and water metabolism of cities from their intimately inter-related nutrient and energy metabolisms. Much of the focus of this difficulty settles on the wastewater component of the city＇s water infrastructure and its associated fluxes of nutrients （N, P, C, and so on）. Indeed, notwithstanding the massive volumes of these materials flowing into and out of the city, the notion of an urban nutrient infrastructure is conspicuous by its absence. Likewise, we do not tend to discuss, or conduct research into, ＂soilshed＂ agencies, or soilshed management, or Integrated Nutrient Resources Management （as opposed to its most familiar companion, Integrated Water Resources Management, or IWRM）. The paper summarizes some of the benefits （and challenges） deriving from adopting this broader, multi-sectoral ＂systems＂ perspective on addres- sing water-nutrient-energy systems in city-watershed settings. Such a perspective resonates with the growing interest in broader policy circles in what is called the ＂water-food-energy security nexus＂. The benefits and challenges of our Multi-sectoral Systems Analysis （MSA） are illustrated through computational results from two primary case studies： Atlanta, Georgia, USA; and London, UK. Since our work is part of the International Network on Cities as Forces for Good in the Environment （CFG; see ***）, in which other case studies are currently being initiated -- for example, on Kath- mandu, Nepal we close by reflecting upon these issues of water-nutrient-energy systems in three urban settings with quite different styles and speeds of development.

关键词： cities climate change energy sector nutrientsector systems analysis resource recovery water-food-energy security

A Systematic Review of the Environmental Impacts of GM Crop Cultivation as Reported from 2006 to 2011

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2013年第6期4卷 28-44页

作者： Oliver Knox Clare hall Alistair McVittie Robin Walker bruce Knight Innovation Management Cambridgeshire UK Scotland’s Rural College Aberdeen UK Scotland’s Rural College Edinburgh UK

The current generation of genetically modified crops have shown potential to enhance agricultural productivity and alter farm production economics, but there remains global divergence in adoption of the technology due in part to uncertainty in the underlying science. In an attempt to address this, a systematic review was undertaken, which asked the question “What are the environmental impacts of the global cultivation of GM crops?” A database search statement generated over 19000 hits, which distilled down to 28 articles from which data was recovered to generate a set of R values, where R was the ratio of the GM divided by the conventional field data. Meta-analysis of this data indicated that under GM R had significantly increased from a background level of 1 to a mean value of 1.31. This increase in R, although positive, is not indicative of an environmental benefit due to the difficulty in assigning either benefits or disadvantages to the many indicators that were encompassed within the review. Subsequent regression analysis indicated that there was no standard model to explain the observed variation in R values. However, in models for both cotton and maize, variables relating to the design of the study had a significant effect, but these variables were not related to trait or gene insertion and were generally either year, country or change in cultivation practice in origin. Narrative analysis of the authors published interpretations indicated GM had no adverse effects in 85% of papers, 10% reported a beneficial effect and only 5% a deleterious impact. The conclusion of this study is that GM adoption has had an impact on its environment, but that the underlying cause of this impact is not due to the genetic modification and the effect on the environment is generally seen as not being adverse.

关键词： GM Systematic Review Meta-Analysis Environmental Indicators

Wind farm potential is higher in prime habitat for uncommon soil crust lichens

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ecological Processes 2013年第1期2卷 108-115页

作者： Heather T Root Myrica McCune bruce McCune Department of Botany and Plant Pathology Oregon State University2082 Cordley HallCorvallisOR 97330USA Institute for Natural Resources Oregon State University210 Strand Agricultural HallCorvallisOR97331USA Department of Forest Ecosystems and Society Oregon State University321 Richardson HallCorvallisOR97331USA

Introduction:Biotic soil crust communities contribute valuable ecosystem services and biodiversity in steppe *** uncommon crust lichens Acarospora schleicheri,Fuscopannaria cyanolepra,Rhizocarpon diploschistidina,and Texosporium sancti-jacobi are associated with fine-textured soils along rivers of the Columbia *** and *** indicate late-successional habitat and may serve as indicators for other rare or cryptic species associated with similar *** of the most favorable habitat for these species has been lost to urban and agricultural *** sought to overlay favorable habitats with wind farm development potential to assess whether these species are likely to be affected by renewable energy ***:We overlaid habitat models for four lichen species on land use and wind farm potential *** a sample of 5,000 points,we determined whether there were differences in probability of occurrence among wind farm potential classes within developed and natural lands using Multi-Response Permutation *** with modeled probability of occurrence greater than 60%were considered“favorable”habitats;for these,aχ2 test allowed us to determine whether favorable habitats were associated with wind farm potential ***:Sites that are developed for agriculture or have higher wind farm potential coincide with more favorable habitats for uncommon soil crust *** the favorable habitats for the four focal lichens,28–42%are already affected by development or agriculture;5–14%of favorable habitats remain in natural vegetation and are considered sites with fair or good potential for wind ***:Development of wind energy has the potential to negatively impact uncommon soil crust lichen species because favorable sites coincide with especially good habitat for these ***,as these renewable energy resources are developed,we have the opportunity to ensure that valuable soil crus

关键词： Acarospora schleicheri Agriculture Biotic soil crust Columbia river Fuscopannaria cyanolepra Land use Rhizocarpon diploschistidina Steppe Texosporium sancti-jacobi

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

油菜黑胫病原真菌的分离与鉴定

油菜黑胫病原真菌的分离与鉴定

中国植物病理学会2008年学术年会

作者：刘泽李强生 Avice M.hall bruce D.L.Fitt 安徽省农业科学院作物研究所 University of Hertfordshire HatfieldHertfordshire AL10 9ABUK Rothamsted Research HarpendenHertfordshire AL5 2JQUK

在2005～2007年,从我国一些油菜产区获得油菜黑胫病害感染植株,病原物分离鉴定的结果显示,其致病真菌为侵染性较弱的 Leptosphaeria biglobosa,具有强侵染性的菌种 *** 尚未从上述产区获得。在菌落形态上(包括在营养基质上的生长速度和... 详细信息

在2005～2007年,从我国一些油菜产区获得油菜黑胫病害感染植株,病原物分离鉴定的结果显示,其致病真菌为侵染性较弱的 Leptosphaeria biglobosa,具有强侵染性的菌种 *** 尚未从上述产区获得。在菌落形态上(包括在营养基质上的生长速度和色素合成等),中国的 *** 菌株与欧洲的 *** 菌株具有很大相似性。

关键词：油菜油菜黑胫病油菜黑胫病菌

在线全文

cnki会议

学校读者我要写书评

暂无评论

肾安方对IgA肾病中系膜细胞增殖的影响

肾安方对IgA肾病中系膜细胞增殖的影响

中国中西医结合学会肾脏疾病专业委员会2015年学术年会

作者：黄志强张先闻王琳边琪 Stacy hall bruce A.Julian 陈以平 Jan Novak University of Alabama at Birmingham 上海中医药大学附属龙华医院上海长海医院

目的:肾安方(SA)系陈以平教授经验方,临床用于治疗有肾功能不全的IgA肾病患者数十年,疗效显著。但其具体机制未明。IgA肾病是系膜增生性肾小球疾病。目前认为,血小板衍化生长因子(PDGF)信号通路参与系膜细胞增殖并造成后续的肾小球损伤...

目的:肾安方(SA)系陈以平教授经验方,临床用于治疗有肾功能不全的IgA肾病患者数十年,疗效显著。但其具体机制未明。IgA肾病是系膜增生性肾小球疾病。目前认为,血小板衍化生长因子(PDGF)信号通路参与系膜细胞增殖并造成后续的肾小球损伤。本研究旨在探讨SA在系膜细胞增殖过程中对PDGF通路的作用。

关键词：

肾平方阻断IgA肾病中循环免疫复合物诱导的人系膜细胞PDGF信号通路激活及增殖

在线全文

cnki会议

学校读者我要写书评

暂无评论

肾平方阻断IgA肾病中循环免疫复合物诱导的人系膜细胞PDGF信号通...

中国中西医结合学会肾脏疾病专业委员会2015年学术年会

作者：张先闻黄志强王琳 Stacy D.hall bruce A.Julian 陈以平 Jan Novak 上海中医药大学附属龙华医院 University of Alabama at Birmingham

目的:IgA肾病(Ig A nephropathy,IgAN)是导致终末期肾病的常见慢性肾小球肾炎。其特征是含IgA1的免疫复合物沉积、系膜细胞增殖及基质扩张。含半乳糖缺乏的IgA-1(IgA1 with galactose-deficient O-glycans,Gd-Ig A1)及其抗体的循环免疫...

目的:IgA肾病(Ig A nephropathy,IgAN)是导致终末期肾病的常见慢性肾小球肾炎。其特征是含IgA1的免疫复合物沉积、系膜细胞增殖及基质扩张。含半乳糖缺乏的IgA-1(IgA1 with galactose-deficient O-glycans,Gd-Ig A1)及其抗体的循环免疫复合物(circulating immune complexes,CIC)刺激系膜细胞增殖及系膜增生。此病理过程

关键词：

血小板衍生生长因子对体外培养的人系膜细胞的影响:从基因芯片到信号通路的研究

在线全文

cnki会议

学校读者我要写书评

暂无评论

血小板衍生生长因子对体外培养的人系膜细胞的影响:从基因芯片到...

中国中西医结合学会肾脏疾病专业委员会2015年学术年会

作者：边琪 Stacy hall 黄志强张先闻 Leona Raskova Kafkova bruce A.Julian 郭志勇 Jan Novak 第二军医大学附属长海医院肾内科美国阿拉巴马大学伯明翰分校上海中医药大学附属龙华医院肾内科

目的:IgA肾病是我国最常见的原发性肾小球疾病,我科2003-2013年1629例肾穿刺活检病例中32.8%诊断为IgA肾病。以系膜细胞增生为特征的肾小球系膜损伤是IgA肾病的重要表现。血小板衍生生长因子(Platelet-derived growth factor,PDGF)是系...

目的:IgA肾病是我国最常见的原发性肾小球疾病,我科2003-2013年1629例肾穿刺活检病例中32.8%诊断为IgA肾病。以系膜细胞增生为特征的肾小球系膜损伤是IgA肾病的重要表现。血小板衍生生长因子(Platelet-derived growth factor,PDGF)是系膜细胞增生的强刺激剂。越来越多的证据表明,PDGF相关的信号通路激活是IgA肾病和许多其他肾小球疾病

关键词：

在线全文

cnki会议

学校读者我要写书评

暂无评论

No Blues in Beijing

China Today 2005年第8期54卷 58-59页

作者： bruce VEDDER

German hip hop hopefuls Massive Tone brought Deutsche beats to Peking University. "Bine, tanzen!" (Please, dance!) was the rallying cry from German hip hop group Massive Tone as they took the stage for their recent gig at China’s most prestigious university. The trio from Stuttgart made their China debut at Peking University Concert hall in

关键词：北京传统音乐摇滚乐乐团