检索结果-南通市图书馆

地质学报 2008年第12期82卷 1688-1706页

作者：李勇周荣军 Alexander L.DENSmORE 闫亮 nicholas RICHARDSON 董顺利 michael A.ELLIS 张毅何玉林陈浩乔宝成马博琳成都理工大学油气藏地质及开发工程国家重点实验室 610059 四川省地震局工程地震研究院成都610041 Institute of Hazard and Risk Research and Department of Geography Durham UniversityDurhamUK Department of Earth Science Swiss Federal Institute of TechnologyZurichSwitzerland Center for Earthquake Research and Information University of MemphisMemphisTennesseeUSA

2008年5月12日在龙门山映秀-北川断裂带发生的8.0级特大地震,属于逆冲—走滑型地震。本文以地表破裂为切入点,在映秀-北川断裂的关键部位开展了详细的野外地貌测量,标定了映秀-北川断裂带的垂向断距和水平断距,结果表明映秀-北川断裂的... 详细信息

2008年5月12日在龙门山映秀-北川断裂带发生的8.0级特大地震,属于逆冲—走滑型地震。本文以地表破裂为切入点,在映秀-北川断裂的关键部位开展了详细的野外地貌测量,标定了映秀-北川断裂带的垂向断距和水平断距,结果表明映秀-北川断裂的地表破裂带从映秀向北东延伸达180～190km,走向介于NE30°～50°之间,倾向北西,地表平均垂向断距为2.9m,平均水平断距为3.1m;地表最大错动量的地点位于北川县擂鼓镇,垂直断错为6.2±0.1m,水平断错为6.8±0.2m,逆冲分量与右行走滑分量的比值为3∶1～1∶1,表明该断裂以逆冲—右行走滑为特点,逆冲运动分量略大于或等于右行走滑运动分量。根据近南北向的分段断裂可将映秀-北川断层的地表破裂带划分为两个高值区和两个低值区,其中两个高值区分别位于南段的映秀—虹口一带和中北段的擂鼓—北川县城—邓家坝一带。基于保存于破裂面上的擦痕,我们将该地震破裂过程划分为两个阶段,早期为逆冲作用,晚期为斜向走滑作用。

关键词：汶川地震地表破裂映秀-北川断裂走滑-逆冲作用龙门山

Population increase and changes in behavior and morphology in the Critically Endangered Redonda ground lizard(Pholidoscelis atratus)following the successful removal of alien rats and goats

在线全文

学校读者我要写书评

暂无评论

Integrative Zoology 2021年第3期16卷 379-389页

作者： Colin m.DONIHUE Jennifer C.DALTRY Shanna CHALLENGER Anthony HERREL UmR 7179 C.N.R.S/m.N.H.N. Département Adaptations du VivantParisFrance Department of Biology Washington University in St.LouisSt.LouisMissouriUSA Fauna&Flora International David Attenborough BuildingPembroke StreetCambridgeUK Department of Environment St.John’sAntigua Environmental Awareness Group St.John’sAntigua

Redonda is a small volcanic Caribbean island that is home to at least 4 endemic lizard species,including the Critically Endangered ground lizard(Pholidoscelis atratus).Black rats(Rattus rattus)and domestic goats(Capra hircus)were introduced to the island at some time after its discovery by Europeans in the late *** had a devastating effect on the island,resulting in the loss of nearly all trees and most of the ground *** count surveys of *** in 2012 indicated low densities,and the invasive rats were observed hunting and preying on the *** populations of rats and goats were successfully removed in 2017 as part of an ecological restoration program,and native vegetation and invertebrate populations have increased rapidly *** surveys in 2017,2018,and 2019 show the lizard population has increased by more than *** 2017,as rats and goats were being removed,we evaluated the morphology and escape behavior of this species and repeated these measurements 1 year *** observed that *** had become bolder,with a reduced flight *** also detected changes in limb morphology related to locomotion and suggest possible explanations that will need to be further investigated in the *** results show how the removal of invasive species can rapidly affect lizard population recovery and behavior,potentially restoring island ecosystems to their pre-human interference dynamics.

关键词： Antigua and Barbuda Caribbean conservation endangered species invasive alien species island biology Lesser Antilles pest removal

评论：NICE指南关于抗生素在自限性呼吸道感染的初级治疗中的使用

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

英国医学杂志中文版 2009年第2期12卷 117-118页

作者： Christopher C Butler nicholas Francis 张新(译) 代华平(校) National Institute for Health and Clinical Excellence Manchester M1 4BD School of medicine University of Southampton Southampton SO17 1BJ 首都医科大学附属北京朝阳医院

NICE关于呼吸道感染中抗生素使用的最新指南中一条最重要的信息就是：综合了目前大量的证据证实：对大部分患者而言，抗生素的使用并没有带来很有意义的结果。对大部分临床医生而言，这已经不是什么新闻了。大部分人都认为需要对这些观... 详细信息

NICE关于呼吸道感染中抗生素使用的最新指南中一条最重要的信息就是：综合了目前大量的证据证实：对大部分患者而言，抗生素的使用并没有带来很有意义的结果。对大部分临床医生而言，这已经不是什么新闻了。大部分人都认为需要对这些观点做出改变，而且也已经在对这些感染进行治疗时做出了改变。

关键词：呼吸道感染初级治疗 NICE 抗生素新指南自限性评论临床医生

鲑鱼变色综合症的生态毒理学测定——与河流污染有关的大西洋鲑鱼病理状况

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

人类环境杂志 1997年第8期26卷 497-502页

作者： Bronwen Croce Ronald m.Stagg nicholas C.Everall David B.Groman Christopher G.mitchell Roger Owen 张国梁 Scottish Office Agriculture Severn Trent Water Ltd 大西洋兽医学院苏格兰农业环境与渔业部斯特灵大学

"鲑鱼变色综合症"是一种与大西洋鲑鱼(Salmo salar)的临床黄疸有关的非传染性溶血性贫血症,由多种化学污染物的综合影响而引起。这种病只发生于英国苏格兰阿伯丁郡唐河(River Don,Aberdeenshire)内洄游性成年大西洋鲑鱼种群中,本世纪80... 详细信息

"鲑鱼变色综合症"是一种与大西洋鲑鱼(Salmo salar)的临床黄疸有关的非传染性溶血性贫血症,由多种化学污染物的综合影响而引起。这种病只发生于英国苏格兰阿伯丁郡唐河(River Don,Aberdeenshire)内洄游性成年大西洋鲑鱼种群中,本世纪80年代初曾在那里达到流行病比率。人们认为造纸厂、供油工业区和机场的污流可能是该综合症的诱因。一些实验表明,当受到石油碳氢化合物(如柴油)和树脂酸的连续综合影响时,该综合症的症状能够再现。从1989年起,鲑鱼变色综合症在唐河的野生鲑鱼中再未出现,我们的研究表明这是由于唐河水质的直接改善。该病是多种污染物综合引起生物效应的很好的例证。而在单一污染物质影响下,这种作用并不明显。本文描述了确定病因的方法。

关键词：鲑鱼变色综合症生态毒理学污染毒理学病因

榅桲总黄酮对自发性高血压大鼠心脏结构和功能的影响

在线全文

学校读者我要写书评

暂无评论

中成药 2016年第11期38卷 2313-2318页

作者：周文婷马虎阿迪力.阿不都热合曼邬利娅.伊明 mOORE nicholas 艾尼瓦尔.吾买尔新疆医科大学基础医学院药理教研室新疆乌鲁木齐830011 法国波尔多大学药理教研室法国波尔多33076

目的研究榅桲Cydonia oblanga mill.总黄酮对自发性高血压大鼠(SHR)心脏结构和功能的影响。方法大鼠分为模型组(SHR组)、卡托普利组[25 mg/(kg·d)]、杜仲平压片组[30 mg/(kg·d)]和榅桲总黄酮低、中、高剂量组[40、80、160 mg/(kg·d)... 详细信息

目的研究榅桲Cydonia oblanga mill.总黄酮对自发性高血压大鼠(SHR)心脏结构和功能的影响。方法大鼠分为模型组(SHR组)、卡托普利组[25 mg/(kg·d)]、杜仲平压片组[30 mg/(kg·d)]和榅桲总黄酮低、中、高剂量组[40、80、160 mg/(kg·d)]剂量组。WKY大鼠给予蒸馏水,作为正常对照组。灌胃给药16周后,进行超声心动图、心脏血流动力学和组织病理学检查,评价榅桲总黄酮对大鼠心脏结构和功能的影响。masson染色后,光镜下观察心肌纤维化程度。结果超声心动图结果显示,与SHR组比较,榅桲总黄酮组左心室舒张末期内径、左心室收缩末期内径、室间隔厚度指数均有所降低,左心室质量、左心室质量指数、左心室质量/体质量比均明显减小,榅桲总黄酮中、高剂量组左心室内径缩短率、左心室射血分数增大,其中榅桲总黄酮高剂量组变化最大。血流动力学测定结果显示,与SHR组比较,榅桲总黄酮组收缩压、舒张压、左室收缩压、左室舒张末期压降低,室内压最大上升速率、室内压最大下降速率减小,收缩时间无明显变化,舒张时间延长,心率减小但无显著性差异。masson染色结果显示,榅桲总黄酮高剂量组心肌纤维化明显减少。结论榅桲总黄酮可改善自发性高血压大鼠心脏功能,抑制心肌肥厚,并减轻心肌纤维化。

关键词：榅桲总黄酮自发性高血压大鼠血流动力学心肌纤维化

Electricity consumption patterns within cities:application of a data-driven settlement characterization method

在线全文

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2020年第1期13卷 119-135页

作者： Pranab K.Roy Chowdhury Jeanette E.Weaver Eric m.Weber Dalton Lunga St.Thomas m.LeDoux Amy N.Rose Budhendra L.Bhaduri Urban Dynamics Institute&Geographic Information Science and Technology Group Oak Ridge National LaboratoryOak RidgeTNUSA Bredesen Center For Interdisciplinary Research and Graduate Education University of TennesseeKnoxvilleTNUSA

Urban areas presently consume around 75%of global primary energy supply,which is expected to significantly increase in the future due to urban *** sustainable,universal energy access is a pressing challenge for most parts of the *** urban energy consumption patterns may help to address the challenges to urban sustainability and energy ***,urban energy analyses are severely limited by the lack of urban energy *** datasets are virtually non-existent for the developing *** per current projections,most of the new urban growth is bound to occur in these data-starved ***,there is an urgent need of research methods for monitoring and quantifying urban energy utilization ***,we apply a data-driven approach to characterize urban settlements based on their formality,which is then used to assess intraurban urban energy consumption in Johannesburg,South Africa;Sana’a,Yemen;and Ndola,*** is the fastest growing energy *** analyzing the relationship between the settlement types and the corresponding nighttime light emission,a proxy of electricity consumption,we assess the differential electricity consumption *** study presents a simple and scalable solution to fill the present data void to understand intra-city electricity consumption patterns.

关键词： Settlement characterization cities urban electricity consumption VIIRS nighttime lights developing countries

PROGRESS ON ImPROVING AGRICULTURAL NITROGEN USE EFFICIENCY: UK−CHINA VIRTUAL JOINT CENTERS ON NITROGEN AGRONOmY

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Agricultural Science and Engineering 2022年第3期9卷 475-489页

作者： Tom mISSELBROOK Zhaohai BAI Zejiang CAI Weidong CAO Alison CARSWELL nicholas COWAN Zhenling CUI David RCHADWICK Bridget EmmETT Keith GOULDING Rui JIANG Davey LJONES Xiaotang JU Hongbin LIU Yuelai LU Lin mA David POWLSON Robert mREES Ute SKIBA Pete SmITH Roger SYLVESTER-BRADLEY John WILLIAmS Lianhai WU minggang XU Wen XU Fusuo ZHANG Junling ZHANG Jianbin ZHOU Xuejun LIU Rothamsted Research North WykeOkehamptonDevon EX202SBUK Center for Agricultural Resources Research Chinese Academy of SciencesShijiazhuang 050021China Qiyang Agro-ecosystem of National Field Experimental Station Yongzhou 426182China College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjing 210095China UK Centre for Ecology and Hydrology Bush EstatePenicuikMidlothian EH260QBUK College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193China School of Natural Sciences Bangor UniversityBangor LL572UWUK UK Centre for Ecology and Hydrology Bangor LL572UWUK Rothamsted Research HarpendenHertfordshire AL52JQUK College of Resources and Environment Northwest A&F UniversityYangling 712100China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing 100081China School of International Development University of East AngliaNorwichNorfolk NR47TJUK Scotland’s Rural College(SRUC) West Mains RoadEdinburghEH93JGUK Institute of Biological and Environmental Sciences University of AberdeenAberdeen AB243FXUK ADAS Boxworth Battlegate RoadBoxworthCambridge CB234NNUK.

Two virtual joint centers for nitrogen agronomy were established between the UK and China to facilitate collaborative research aimed at improving nitrogen use efficiency(NUE)in agricultural production systems and reducing losses of reactive N to the *** focus areas were improving fertilizer NUE,use of livestock manures,soil health,and policy development and knowledge *** to fertilizer NUE included attention to application rate in the context of yield potential and economic considerations and the potential of improved practices including enhanced efficiency fertilizers,plastic film mulching and cropping *** utilization of livestock manures requires knowledge of the available nutrient content,appropriate manure processing technologies and integrated nutrient management *** carbon,acidification and biodiversity were considered as important aspects of soil *** centers identified a range of potential actions that could be taken to improve N management,and the research conducted has highlighted the importance of developing a systemslevel approach to assessing improvement in the overall efficiency of N management and avoiding unintended secondary effects from individual *** this context,the management of fertilizer emissions and livestock manure at the farm and regional scales appear to be particularly important targets for mitigation.

关键词： CINAg N-CIRCLE nitrogen use efficiency reactive nitrogen sustainable production

Dermatological conditions of aquatic athletes

在线全文

学校读者我要写书评

暂无评论

World Journal of Dermatology 2015年第1期4卷 8-15页

作者： Collin m Blattner Viktoryia Kazlouskaya Garrett C Coman nicholas R Blickenstaff Jenny E murase Department of medicine Des Moines University Ackerman Academy of Dermatopa-thology Department of medicine University of Utah School of MedicineSalt Lake CityUT 84132 United States Department of Dermatology Palo Alto Foundation Medical Group Palo Alto and Mountain View CA 94040 United States Department of Dermatology University of California San Francisco

Numerous manuscripts have described dermatologic conditions commonly seen in swimmers. This review provides an update on water dermatoses and discusses newly described conditions such as allergic contact dermatitis to chemical ingredients like potassium peroxymonosulate in pool water. In order to organize water related skin conditions, we have divided the skin conditions into a number of categories. The categories described include infectious and organism-related dermatoses, irritant and allergic dermatoses, and suninduced dermatoses. The vast majority of skin conditions involving the water athlete result from chemicals and bacteria in the differing aquatic environments. When considering the effects of swimming on the skin, it is also useful to differentiate between exposure to freshwater(lakes, ponds and swimming pools) and exposure to saltwater. The risk of melanoma amongst swimmers is increased, and the use of SPF 30 or greater sunscreen and protective clothing is highly recommended. Swimmers should be reminded to generously apply sunscreen and be instructed on proper sunscreen usage. This review will serve as a guide for dermatologists, athletes, coaches, and other medical professionals in recognition and treatment of these conditions. We also intend for this review to provide dermatologist with a basic framework for the diagnosis and treatment of a few rarely described dermatological conditions in swimmers.

关键词： Aquatics Dermatitis Athletes Practice Gaps Freshwater dermatitis

异常黑胆质成熟剂水提物和醇提物对HepG2细胞m~5dC及8-OH-dG形成的影响

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国中医基础医学杂志 2006年第10期12卷 728-730页

作者：阿不都热依木·玉苏甫 Isabelle BAUDRImONT 吐尔洪.卡迪尔 nicholas mOORE 新疆维吾尔自治区维吾尔医研究所新疆医科大学法国波尔多第二大学法国波尔多第二大学新疆乌鲁木齐830001新疆医科大学新疆乌鲁木齐830054 哈木拉提·吾甫尔法国波尔多33076

目的:观察异常黑胆质成熟剂水提物和醇提物对人肝癌细胞株(HepG2)细胞5-甲基脱氧胞核嘧啶(5-methyldeoxycytosine,m5dC)及8-羟基-2′-鸟嘌呤脱氧核苷酸(8-hydroxy-2′-deoxyguanosine,8-OH-dG)等表遗传信息的影响,从而探讨异常黑胆质成... 详细信息

目的:观察异常黑胆质成熟剂水提物和醇提物对人肝癌细胞株(HepG2)细胞5-甲基脱氧胞核嘧啶(5-methyldeoxycytosine,m5dC)及8-羟基-2′-鸟嘌呤脱氧核苷酸(8-hydroxy-2′-deoxyguanosine,8-OH-dG)等表遗传信息的影响,从而探讨异常黑胆质成熟剂水提物和醇提物抗癌作用的分子生物学机制。方法:采用高效液相色谱联用紫外检测技术(HPLC-UV),分别观察以2.5、5.0及7.5mg/ml浓度的异常黑胆质成熟剂水提物或醇提物作用48h后,对HepG2细胞m5dC及8-OH-dG形成的抑制作用。结果:异常黑胆质成熟剂水提物作用后,HepG2细胞m5dC生成率分别为27.02、4.2及18.6%,而醇提物分别为23.5、20.2及16.8%,与空白对照组(34.0%)比较均具有显著性差别(Pm5dC及8-OH-dG等表遗传学信息的产生具有浓度依赖性的抑制作用,而醇提物的作用优于水提物,说明抑制癌细胞m5dC及8-OH-dG等表遗传学信息的产生是异常黑胆质成熟剂抗癌作用的重要分子生物学机制之一。

关键词：维医异常黑胆质成熟剂抗癌作用 m5dC 8-OH-dG