学科分类
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39 个结果
  • 简介:  做为制造业领先指标(通常是三个月)的保留进口,the retained import figure does give a relatively good indication of the direction of the manufacturing and electronic activities and as such the Singapore economy. The indicator that reflects the domestic demand is the non-oil imports. It fell 19.3% in July,turning points in the economy are signalled by three consecutive months of LEI changes in the same direction. This leading indicator is like a lighthouse

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  • 简介:  做为制造业领先指标(通常是三个月)的保留进口,is still down. It fell15.6% for 1998. This spells weak manufacturing and electronics figures in the following two quarters. July’s total trade figures fell 9.1%,turning points in the economy are signalled by three consecutive months of LEI changes in the same direction. This leading indicator is like a lighthouse

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  • 简介:Inanattempttoassessthepaleoenvironmentsofterrestrialsediments,sometwenty-tworepresenta-tiveChinesenon-marinesedimentsampleswerestudiedusingthemolecularorganicgeochemistrymethod.Thesedimentsamplesstuiedincludeoilshale,shale,mudstoneandglaubersaltfromTertiarytoCretaceousinage.Judgingfromgeological/geochemicaldataandpaleosalinitydata,thesamplesstudiedareoflacustrinesedimentaryoriginandcanbedividedintothreedifferenttypes:freshwater,brackishandsaline/hypersalinelakesediments.ThealiphaticfractionswereseparatedfromtheextractsofthesamplesandanalysedbymeansofGCandGC/MSinstruments,givinganumberofparameterssuchasrelativeabundancesofalkanesandcycloalkanesasshowninthemasschromatograms.

  • 标签: 生物标志化合物 古环境 陆地沉积 色谱 有机地球化学
  • 简介:RegistrationStatusofEnterprisesEnterprisesareclassifiedinto3categories,namelydomestic-fundedenterprises,enterpriseswithinvestmentfromHongKong,MacauandTaiwan,andenterpriseswithforeigninvestment,inthelightoftheregistrationstatusofanenterpriseinindustrialandcommercialadministrationagencies.Domestic-fundedenterprises

  • 标签: 经济景气 月报
  • 简介:河的健康生活是对他们的生活条件的描述,并且它也与人的社会是对河的功能和关系的一个全面评价。Throughanalyzing人和河生态系统,连续流动,为水的安全的河隧道和沉积交通,好水质,持续的河生态系统和给水能力的要求被认为是健康黄河的符号。最小量,最大的洪水排出能力,满满的分泌物,泛滥平原的横向的斜坡,水质度,沼泽地区域,水的生态系统,和给水能力,总共八量的指示物被放作为健康黄河的符号,并且他们的相应标准redetermined基于有历史的水文学数据和1956-2004的观察数据的分析。

  • 标签: 黄河 指标体系 径流 水质
  • 简介:Thesustainableuseofrenewableresourceshasbecomeanimportantissueworldwideinthemovetowardsalessfossil-fuel-intensivefuture.Mainstreammethodforfulfillingthisaimistoincreasetheshareofrenewableenergyandmaterialstosubstitutefossilfuelsandtobecomefullyindependentfromfossilfuelsoverthelong-term.However,theenvironmentalsustainabilityofthisendeavorhasbeenquestioned.Inaddition,economicandsocialsustainabilityissuesarealsomuchdebatedtopicsinthisparticularcontext.Forestresourcesareoftenthoughttocontributepartiallytoachievingaso-called'carbon-neutralsociety'.Inthisreview,wediscusssustainabilityissuesofusingforestbiomass.Wepresentseveralsustainabilityindicatorsforecological,economicandsocialdimensionsanddiscusstheissuesinapplyingtheminsustainabilityimpactassessments(SIAs).WealsopresentanumberoftoolsandmethodspreviouslyusedinconductingSIAs.WeapproachourstudyfromtheperspectiveoftheFinnishforestry;inaddition,variousaspectsregardingtheapplicationofSIAsinabroadercontextarealsopresented.Oneofthekeyconclusionsofthestudyisthatalthoughsufficientdataareavailabletomeasuremanyindicatorsaccurately,theimpactsmaybeverydifficulttoassess(e.g.impactofgreenhousegasesonbiodiversity)forconductingaholisticSIA.Furthermore,someindicators,suchas'biodiversity',aredifficulttoquantifyinthefirstplace.Therefore,amixofdifferentmethods,suchasMulti-criteriaAssessment,Life-cycleAssessmentorCost-BenefitAnalysis,aswellasdifferentapproaches(e.g.thresholdsandstrong/weaksustainability)areneededinaggregatingtheresultsoftheimpacts.SIAsareimportantinsupportingandimprovingtheacceptabilityofdecision-making,butacertaindegreeofuncertaintywillalwayshavetobetolerated.

  • 标签: 环境可持续性 生物经济 影响评估 森林资源 可持续发展问题 工具
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  • 简介:这研究的主要目的是在伊拉克的南部的部分的一个代表性的区域在最后20年期间加亮环境变化指示物(Basrah省作为一个盒子被拿)可伸缩理解用印射的1:250000导致了普遍环境降级现象的主要原因。遥感和GIS软件被用来分类Landsat在1990的TM和在进五的2003形象的LandsatETM+打使用和陆地盖子(LULC)班:植被土地,沙陆地,城市的区域,闲置的陆地,和水身体。监督分类和规范的差别植被索引(NDVI),规范的差别逐渐增加索引(NDBI),规范的差别水索引(NDWI),规范的差别咸度索引(NDSI),并且表层土谷物尺寸索引(GSI)在这研究被采用并且分别地过去常检索它的班边界。结果在植物的盖子(514.9km2)和沙沙丘累积(438.6km2)的增加显示出清楚的恶化,为10.1,和10.6%的财务,分别地全部的学习区域。另外,在水身体区域的减少被检测(228.9km2)。沙区域累积在全部的学习区域增加了,与年度增加扩大率(33.7km2???????????吗??

  • 标签: 环境降级 LULC RS GIS 分类索引
  • 简介:AbstractBackground:We investigated whether periodontal diseases, specifically, periodontitis and gingivitis, could be risk factors of the incidence of intracranial aneurysms (IAs).Methods:We performed a case-control study to compare the differences in the periodontal disease parameters of 281 cases that were divided into the IAs group and non-IAs group. All cases underwent complete radiographic examination for IAs and examination for periodontal health.Results:Comparing with those in the non-IAs group, the cases in the IAs group were older (53.95 ± 8.56 vs 47.79 ± 12.33, p < 0.001) and had a higher incidence of hypertension (76 vs 34, p = 0.006). Univariate logistic regression analysis revealed that age (> 50 years) and hypertension were predictive risk factors of aneurysm formation (odds ratio [OR] 1.047, 95% confidence interval [95% CI] 1.022-1.073, p < 0.001 and OR 2.047, 95% CI 1.232-3.401, p = 0.006). In addition, univariate and multivariate logistic regression analyses showed that the parameters of periodontal diseases, including gingival index, plaque index, clinical attachment loss, and alveolar bone loss, were significantly associated with the occurrence of IAs (all p < 0.05). For further statistical investigation, the parameters of periodontal diseases were divided into four layers based on the quartered data. Poorer periodontal health condition (especially gingival index > 1.1 and plaque index > 1.5) had the correlation with IAs formation (p = 0.007 and p < 0.001).Conclusion:Severe gingivitis or periodontitis, combining with hypertension, is significantly associated with the incidence of IAs.

  • 标签: Gingivitis Intracranial aneurysms Inflammation Periodontitis
  • 简介:Currentlymoreattentionhasbeenpaidtosustainableforestmanagement(SFM)allovertheworld.Thepapergivesthepresentationofcriteriaandindicators(C&I)forSFMatinternational,national,regionalandmanagementunitlevels.Undertheinternationalframework,thepapersummarizesthedevelopingsituationofC&IforSFMinChinaandgivesthesuggestiononhowtopromoteitsdevelopment.

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  • 简介:为高度产生降级的土壤的可持续性的一个重要因素是监视即时并且写实地反映不同收割系统在土壤上强加的变化的工具的使用。为了选择,在甘蔗(SaccharumofficinarumL.)玷污优秀指示物变量在管理辨别完成敏感的标准到管理惯例和在季节之间一致性的生产区域,十件合成土壤样品(010厘米)在器官的甘蔗(OS)的耕作下面从区域在2006年3月(旱季)在2005年7月(雨季)并且再被收集,绿甘蔗(GS),烧的甘蔗(BS)并且从一个邻近的本国的森林(NF)在UsinaTriunfo的区域,BocadaMata,Alagoas,巴西。微生物引起的biomass-C(MBC),全部的器官的C(TOC),表示为水解作用,水马厩土壤总数(MWD)的吝啬的重量直径,和水马厩宏的百分比聚集的荧光黄diacetate(食物及药品管理局)(PWSA)的率的土壤酶活动被分析。尽管MBC和TOC比在栽培区域在NF是更高的,没有差别在在三个甘蔗系统之间的这些C水池被观察。到地点管理的食物及药品管理局的反应依赖于采样时间。在多雨的时期,这项活动跟随了顺序:NF>OS>GS>BS在旱季,仅仅NF不同于另外的处理。不管采样时间,MWD和PWSA在顺序NF减少了>OS=GS>BS。变量MWD和PWSA为不管怎样在地点管理历史之间区别是相当敏感的采样季节。

  • 标签: 土壤耕作制度 一致性管理 质量评价指标 甘蔗 沙壤土 核转录因子
  • 简介:ThelinkbetweenclimatechangeanddesertificationisanimportantglobalproblemfortheUnitedNationsFrameworkConventiononClimateChange(UNFCCC)andtheUnitedNationsConventiontoCombatDesertification(UNCCD).ThecoastalprovincesinSouthernCentreVietnamarestronglyinfluencedbydesertification,whichisfurtherexacerbatedbyclimatechange.TheDelphimethodwasusedtoselectsustainabilityindicatorsandthenamethodofananalyticalhierarchyprocesswasappliedtoprioritizesustainablesolutionsinBinhThuanexpertstoelicitthecausesandeffectsofdesertification.Accordingtothepanelof23experts,27cause(e.g.rainfallandsunshineduration)and22effect(e.g.riceandagriculture)indicatorswereofparticularimportancetodesertificationanddroughtintheprovince.Thehighestprioritiesforcausearegiventoemigration,followedbyincomefromindustryandwatersupplyforhouseholduse.Thehighestprioritiesforeffectintheareaaregiventosocioeconomiccriteria,andinparticulartothesub-criteriaresettlementduetodevelopmentprojects,buildinghydropowerreservoirs,andimplementingirrigationschemes.Thesystemofindicatorsprovidesusefulinformationforthefuturestudies.Thisstudyprovidesameanstouncoverthemostimportantcriteriaperceivedasmajorcontributorstodesertificationandassuchenablespolicy-makerstoprioritizesolutionsforBinhThuan(Vietnam)by2015andavisionin2020.

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  • 简介:在河健康评价以后的索引系统对在实践使用困难,由于采用的更复杂、职业的指示物。在纸,能是的一些关键指示物一般来说申请了河健康评价被选择,基于有在在19722010的150份出版报纸和文件附近的在内的902个变量的45个评价索引系统的分析。根据变量盖住的地,他们被划分成四个组:产地状况,水环境,关於生命的地位和水利用。在变量被合为指示物以后,在每指示物的上述系统的采用的数字和接受的度被计算,一些能反映河状况的不同方面的广泛地接受的指示物在候选人作为关键指示物被选择。在在在候选人的关键指示物之中的关联分析下面,8指示物最后为估计河健康作为关键指示物被建议,它是:河边的植被,沼泽地的保留的率,河连续性,水流动的变化的率,到达水质量标准的比率,关於生命的正直的鱼索引,水利用的比率和陆地使用的范围率。

  • 标签: 健康评估 河流 健康评价指标体系 评估指标体系 环境质量标准 相关性分析