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| 1 | Microbial responses to combined oxidation and catalysis treatment of 1,4-dioxane and co-contaminants in groundwater and soil显示文摘Post-treatment impacts of a novel combined hydrogen peroxide(H2O_(2))oxidation and WOx/ZrO_(2) catalysis used for the removal of 1,4-dioxane and chlorinated volatile organic compound(CVOC)contaminants were investigated in soil and groundwater microbial community.This treatment train removed~90%1,4-dioxane regardless of initial concentrations of 1,4-dioxane and CVOCs.The Illumina Miseq platform and bioinformatics were used to study the changes to microbial community structure.This approach determined that dynamic shifts of microbiomes were associated with conditions specific to treatments as well as 1,4-dioxane and CVOCs mixtures.The biodiversity was observed to decrease only after oxidation under conditions that included high levels of 1,4-dioxane and CVOCs,but increased when 1,4-dioxane was present without CVOCs.WO_(x)/ZrO_(2) catalysis reduced biodiversity across all conditions.Taxonomic classification demonstrated oxidative tolerance for members of the genera Massilia and Rhodococcus,while catalyst tolerance was observed for members of the genera Sphingomonas and Devosia.Linear discriminant analysis effect size was a useful statistical tool to highlight representative microbes,while the multidimensional analysis elucidated the separation of microbiomes under the low 1,4-dioxane-only condition from all other conditions containing CVOCs,as well as the differences of microbial population among original,post-oxidation,and post-catalysis states.The results of this study enhance our understanding of microbial community responses to a promising chemical treatment train,and the metagenomic analysis will help practitioners predict the microbial community status during the post-treatment period,which may have consequences for long-term management strategies that include additional biodegradation treatment or natural attenuation. | Yu Miao Nicholas W.Johnson Kimberly Heck Sujin Guo Camilah D.Powell Thien Phan Phillip B.Gedalanga David T.Adamson Charles J.Newell Michael S.Wong Shaily Mahendra | 2018 | Frontiers of Environmental Science & Engineering2018,12,5: | 2 |
| 2 | Making Cooperative Learning Work显示文摘 | David W.Johnson Roger T.Johnson | | 0,,02: | 1 |
| 3 | Out-of-pocket Health Care Costs among Older Americans显示文摘 | Stephen Crystal Richard W.Johnson Jeffrey Harman Usha Sambamoorthi Rizie Kumar | | 0,,01: | 1 |
| 4 | Social Imterrelationship Among Theory,Research,and practice显示文摘 | David W.Johnson | | 0,,11: | 1 |
| 5 | Risk of dysplasia and adenocarcinoma following restorative proctocolectomy for ulcerative colitis显示文摘 | P.Das M. W.Johnson P. P.Tekkis R. J.Nicholls | 2006 | Colorectal Disease2006,,1: | 1 |
| 6 | Tree responses to rising CO2 in field experiments: implications for the future forest显示文摘 | R. J.NORBY S. D.WULLSCHLEGER C. A.GUNDERSON D. W.JOHNSON R.CEULEMANS | 2002 | Plant, Cell & Environment2002,,: | 1 |
| 7 | Below‐ground process responses to elevated CO2 and temperature: a discussion of observations, measurement methods, and models显示文摘 | ElisePendall ScottBridgham Paul J.Hanson BruceHungate David W.Kicklighter Dale W.Johnson Beverly E.Law YiqiLuo J. PatrickMegonigal MariaOlsrud Michael G.Ryan ShiqiangWan | 2004 | New Phytologist2004,,2: | 1 |
| 8 | Reinventing Your Business Model显示文摘 | Mark W.Johnson Clayton M.Christensen Henning Kagermann | | 0,,12: | 1 |
| 9 | 亚马逊公司的灵活创新战略显示文摘亚马逊的例子表明企业如何以自我变革之力成为立足之本 | Mark W.Johnson 涂颀(译) | 2010 | 英语文摘2010,,6: | 0 |
| 10 | 商业模式创新显示文摘我之前写过一本书.名为《抓住空白空间:基于企业增长和重建的商业模式创新》(Seizing the White Space:Business Mndel Innovalion for Growth and Renewal)。在这本书中.我试着讲清楚一个问题:如何运用一套具体的方案对企业的商业模式进行创新。当然, | Mark W.Johnson 蔡冬娥 | 2011 | 新营销2011,,12: | 0 |
| 11 | Carry over from previous year environmental conditions alters dominance hierarchy in a prairie plant community显示文摘Aims To determine if an experimentally applied anomalous weather year could have effects on species composition and community structure that would carry over into the following year.Methods We conducted a field experiment applying two levels of temperature(ambient and+4C)and two levels of precipitation(ambient and doubled)and followed cover of plant species during the treatment year and one post-treatment year.Data analysis included ordination analysis,examination of species frequency distributions and comparison of cover of functional groups and individual species.Important Findings A drought during the summer and fall of the treatment year resulted in significant differences in community structure between the 2 years.C3 and winter annual species were depressed in the spring of the second year following the dry autumn.Species richness and legume cover increased in the second,wetter,year.Treatments caused no overall differences in community structure but did alter the dominance hierarchy of species among treatments as well as years.Warming decreased relative cover of winter annuals and early spring-flowering species but increased other annuals.Warming and double precipitation together increased cover of C4 perennial graminoids.In particular,the warming and precipitation treatments both increased the abundance of Andropogon gerardii,not individually altering the dominance hierarchy but together nearly doubling the relative cover of A.gerardii,making it the most abundant species in the combined treatment,while the cover of Bromus arvensis,the former dominant,decreased by 25%.The following year,Andropogon relative cover increased further in the former warmed plots,becoming dominant in both the formerly warmed and warmed plus double precipitation treatments.The year following treatments also saw an increase in relative cover of summer-blooming species in the formerly warmed plots and differences among the former treatments in species richness of functional groups.If the effects of one anomalous year on plant abundance can carry over into the following year,several warm years could have a significant impact on plant community structure. | Rebecca A.Sherry John A.Arnone III Dale W.Johnson Dave S.Schimel Paul S.Verburg Yiqi Luo | 2012 | Journal of Plant Ecology2012,5,2: | 0 |
| 12 | 2002年米兰秋之韵显示文摘Beautiful ensemble ofsoft leather pants wornunder long-sleeved tu-nic(束腰外衣)tied atwaist with wrap belt Ac-cessorized with boots andfedora(软呢制的)hat. | Eunice W.Johnson 晓月 | 2002 | 英语文摘2002,0,10: | 0 |
| 13 | 2015年度最佳中国卖方销售团队显示文摘2015年,中国哪些卖方机构提供的销售支持服务最佳?投资于中国股市的资产管理公司的回答不约而同地一致:中金公司和美银美林分列第一第二;摩根士丹利紧随其后,位居第三;瑞银集团和中信证券夺取了前五中的最后两个席位。2015年,共有27家公司出现在'2015年全中国销售团队排名榜'中。'中金公司股票销售团队所做的,不仅仅是给你一份每日销售摘要,或者只是跟在分析师背后人云亦云; | Thomas W.Johnson | 2016 | 金融客2016,0,1: | 0 |
| 14 | 森林土壤中氮的吸持显示文摘本文综述了影响N在施过肥料的和自然的森林生态系统中的吸持的因素。总的来说,文献认为描述土壤中的异养菌、植物和硝化细菌之间的N竞争概念模型需要做些修改。硝化细菌对N的竞争看来此以前所认识的还要强,特别是在N输入不断提高的情况下(如在被污染的或反复施肥的立地上),认为异养菌是N的最有效的竞争者的假说,在短期且低N输入的情况下是正确的,但对于长期或高N输入来说就未必正确。在缺N的立地上,树木对土壤中的N的明显“挖掘”,意味着在这种条件下N的最有效的竞争者是树木,而不是异养菌。N与土壤有机质的非生物学反应被认为是施肥之后N固定的主要原因,也是在不施肥的立地上有机质分解期间N的有效竞争者。 | Dale W.Johnson 肖辉林 | 1993 | 热带亚热带土壤科学1993,2,3: | 0 |
| 15 | 如何当好首席创新官显示文摘企业对于“创新”并不陌生,然而企业设立首席创新官却是一个新的趋势。首席创新官的职责是什么?在企业内部扮演了怎样的角色? | Mark W.Johnson 小冬(翻译) | 2011 | 新营销2011,,6: | 0 |
| 16 | 应激和疾病影响生长的生物学机制显示文摘应激和疾病对动物生长的负面影响是不言而喻的。那么,本着亡羊补牢犹未为晚的原则,应如何尽量减轻这种负面影响呢?本文论述了应激和疾病影响动物生长的基本方式,从而也找到了克服这种负面影响的途径。 | Rodney W.Johnson 袁森泉 | 1999 | 中国动物保健1999,0,10: | 0 |