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Deadly oasis:Recurrent annihilation of Cretaceous desert bryophyte colonies;the role of solar,climate and lithospheric forcing

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Geoscience Frontiers 2021年第1期12卷 1-12页

作者： Juan Pedro Rodríguez-Lópeza Eduardo barrón Daniel Peyrot gary b.hughes Department of Geology.Faculty of Science.United Arab Emirates University.50009.Al Ain Abu DhabiUnited Arab Emirates Instituto Geológico y Minero de Espana(IGME) Ríos Rosas 23E-28003MadridSpain School of Earth and Environment University of Western Australia.6101CrawleyWestern AustraliaAustralia Centre for Energy Geosciences University of Western Australia.6101CrawleyWestern AustraliaAustralia Physics Department University of CaliforniaSanta BarbaraCA93106USA

Many oases(wet interdunes)are sedimentary systems characterized by high-frequency water-level oscillations,marked changes in salinity and intense biological activity at their *** are considered to be one of the most challenging environments on Earth for ecosystem *** dynamic,depositional settings are usually unfavourable for fossilization and subsequent preservation of vegetal *** paper describes bryophyte(liverwort)assemblages occurring in three successive horizons interpreted to represent(i)recurrent early successional phases of biological soil crust colonization of wet interdune margins or(ii)exceptional preservation of floating or riparian liverworts in oasis pond waters associated with a progressive fall of the interdune water *** record of in situ colonization surfaces characterized by delicate(***-free)three-dimensional structures represents an exceptional type of preservation herein associated with a rapid variation in phreatic interdune water level and the subsequent establishment of anoxic and reducing *** occurrence of exceptionally preserved liverwort colonies coincides with the sedimentary record of,at least,three seismite levels in the *** gathered from the site suggests that the water table of the oasis was controlled by a combination of(i)a positive creation of accommodation space due to subsidence associated with movement on syn-sedimentary extensional faults,and(ii)the rise and fall of the oasis water table controlled by the oscillations of the groundwater system due to orbital changes which appear to drive the variability of the climate *** groundwater levels flooded the oasis soil crusts and lead to the exceptional recurrent preservation of liverwort colonies at the oasis ***,considering the hypothesis of floating or riparian liverworts in the oasis pond waters,the fall in the level of the oasis water table placed the floating liverworts in contact with the

关键词： Oasis Cretaceous Liverworts Colonies Extensional tectonics Solar cyclicity

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Fenton oxidation of 2,4- and 2,6-dinitrotoluene and acetone inhibition

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Frontiers of Environmental Science & Engineering 2008年第3期2卷 326-332页

作者： Yiliang HE bin ZHAO Joseph b.hughes Sung Soo HAN School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

The performances and kinetic parameters of Fenton oxidation of 2,4-and 2,6-dinitrotoluene(DNT)in water-acetone mixtures and explosive contaminated soil washing-out solutions were investigated at a laboratory *** experimental results show that acetone can be a significant hydroxyl radical scavenger and result in serious inhibition of Fenton oxidation of 2,4-and 2,*** no serious inhibition was found in contaminated soil washing-out solutions,longer reaction time was needed to remove 2,4-and 2,6-DNT completely,mainly due to the competition of hydroxyl *** oxidation of 2,4-and 2,6-DNT fit well with the first-order kinetics and the presence of acetone also reduced DNT’s degradation *** on the comparison and matching of retention time and ultraviolet(UV)spectra between high performance liquid chromatography(HPLC)and standards,the following reaction pathway for 2,4-DNT primary degradation was proposed:2,4-DNT→2,4-dinitro-benzaldehyde→2,4-dinitrobenzoic acid→1,3-dinitrobenzene→3-nitrophenol.

关键词： dinitrotoluenes Fenton oxidation acetone inhibition degradation kinetic reaction pathway

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爆炸物污染土壤中2,4-DNT和2,6-DNT的生物降解中试研究

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环境科学 2007年第3期28卷 613-616页

作者：何义亮 Joseph b.hughes Sung SooHan School of Civil and Environmental Engineering Georgia Institute of Technology School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA30332

设计采用包括土壤生物降解、反硝化以及循环混合系统构成的中试流程,模拟原位生物修复工艺,依靠污染土壤自身的生物降解过程去除2,4-二硝基甲苯(2,4-DNT)和2,6-二硝基甲苯(2,6-DNT).结果表明,即使在温度较低的条件下(8～15℃),2,4-DNT和... 详细信息

设计采用包括土壤生物降解、反硝化以及循环混合系统构成的中试流程,模拟原位生物修复工艺,依靠污染土壤自身的生物降解过程去除2,4-二硝基甲苯(2,4-DNT)和2,6-二硝基甲苯(2,6-DNT).结果表明,即使在温度较低的条件下(8～15℃),2,4-DNT和2,6-DNT仍可以被完全去除.两者虽然属于同分异构体,但前者的生物降解速率大大高于后者.系统可以维持自身的碱度平衡和保证无机营养供应,无需调节或补充;反硝化能够正常进行,从而防止亚硝酸根在系统内积累抑制DNT生物降解,但要彻底去除亚硝酸根及硝酸根,需要外加碳源.

关键词：土壤生物修复 2,4.DNT 2,6-DNT 反硝化

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Fenton氧化处理爆炸物污染土壤的实验研究

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环境科学学报 2007年第10期27卷 1657-1662页

作者：何义亮 Joseph b.hughes Sung SooHan School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlanta.GA30332USA 上海交通大学环境科学与工程学院上海200240

采用摇瓶和玻璃柱试验考察了Fenton氧化处理爆炸物污染土壤中2,4-DNT、2,6-DNT以及COD等的去除效果及其最佳参数.当3%H2O2投加量达到26.46mmol、FeSO4和H2O2的物质的量之比约为1:73.56时,2,4-DNT和2,6-DNT均可被完全氧化,COD去除率可达... 详细信息

采用摇瓶和玻璃柱试验考察了Fenton氧化处理爆炸物污染土壤中2,4-DNT、2,6-DNT以及COD等的去除效果及其最佳参数.当3%H2O2投加量达到26.46mmol、FeSO4和H2O2的物质的量之比约为1:73.56时,2,4-DNT和2,6-DNT均可被完全氧化,COD去除率可达到87%.对于2,4-DNT和2,6-DNT,反应时间只需要2h,但要同时去除其它芳香族硝基化合物,则反应时间需要超过8h.土壤直接Fenton氧化的效果并不理想,而对洗出液进行Fenton氧化可以取得很好的效果.通过反应动力学分析和丙酮抑制试验得出,2,4-DNT比2,6-DNT容易氧化.GC-MS分析结果表明,不仅土壤中的2,4-DNT、2,6-DNT可被氧化,其它的硝基芳香族有机化合物也可被氧化去除.

关键词： Fenton氧化爆炸物污染土壤 2,4-DNT 2,6-DNT

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老年人与社区照顾

老年人与社区照顾

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2016年

作者：（英）休斯（b.hughes）

本书旨在将当前养老服务的管理者和实务工作者最关心的两大重要话题放在一起进行讨论，其主要内容分为理论知识、价值观和实务技能两大部分，其中理论知识与价值观涉及老龄理论、老年人的社会状况和老年歧视与反歧视行动，而实务技能则... 详细信息

ISBN: (纸本)9787553937809

本书旨在将当前养老服务的管理者和实务工作者最关心的两大重要话题放在一起进行讨论，其主要内容分为理论知识、价值观和实务技能两大部分，其中理论知识与价值观涉及老龄理论、老年人的社会状况和老年歧视与反歧视行动，而实务技能则包括与老年人沟通、照顾实施与管理和老年人保护。

关键词：老年人社区服务

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Autism spectrum disorders in adolescence and adulthood: Long-term outcomes and relevant issues for treatment and research

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Science China(Life Sciences) 2015年第10期58卷 1010-1015页

作者： Allison b.RATTO gary b.MESIbOV Department of Psychology University of North Carolina at Chapel Hill Department of Psychiatry University of North Carolina at Chapel Hill

The advances in research and treatment of autism spectrum disorders(ASD) over the past three decades have focused largely on early childhood and school-age years. Although ASD is a lifelong condition, there has been relatively little attention paid to ASD during the adolescent and adulthood periods. As the population of those with ASD continues to rise and age, the need to provide research and treatment for this group has become increasingly evident. This paper reviews the current literature available on symptoms, functioning, and treatment of adolescents and adults with ASD, as well as the unique issues that arise for individuals with ASD after childhood. Adulthood outcomes for ASD are generally poor, even for those with average to above average cognitive ability. Further research and additional clinical resources are needed for this rapidly increasing group.

关键词： autism spectrum disorder (ASD) adolescence adulthood developmental trajectory

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Effects of stable aqueous fullerene nanocrystal (nC_(60)) on Daphnia magna:Evaluation of hop frequency and accumulations under different conditions

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Journal of Environmental Sciences 2011年第2期23卷 322-329页

作者： Xianji Yao Yiliang He bo Zhang Yongsheng Chen Joseph b. hughes School of Environmental Science and Technology Shanghai Jiao Tong University Shanghai 200240 China. School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA College of Fisheries and Life Science Shanghai Ocean University Shanghai 201306 China

We investigated the effects of environmental factors and properties of water-stable crystal fullerene （nC60） on the uptake of nC60 by Daphnia magna based on known accumulation in our laboratory. This study was performed for seven days using different environmental factors including temperature, pH, water hardness, concentration （density of particle）, and particle size. Results demonstrated that body burden of C60 increased with time in all experiments. body burden of C60 increased with increasing concentration and particle size, and uptake of particles 〉100 nm reached their maximums more quickly than those 〈100 nm. Under high hardness in aqueous systems with lower pH and high temperature, uptake was higher than those under opposite conditions. Uptake in all batch tests reached balance within five days. both nC60 properties and environmental factors influenced uptake of nC60 by D. magna in an aqueous system. Additionally, environmental factors may have affected accumulation by changing nC60 properties, which are critical to understand the accumulation of fullerenes in aqueous systems.

关键词： C60 fullerene Daphnia magna uptake bioaccumulation

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A new genus and species of shrimp(Crustacea:Axiidea:Axiidae)from the Caroline Ridge,Northwest Pacific

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Journal of Oceanology and Limnology 2021年第5期39卷 1830-1840页

作者： Qi KOU gary C.b.POORE Xinzheng LI Institute of Oceanology Chinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao266071China Laboratory for Marine biology and biotechnology Pilot NationalLaboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Museums Victoria PO Box 666MelbourneVic.3001Australia

A new genus and species of axiid shrimp,Carolinaxius kexuae *** *** described and illustrated based on a single specimen collected from an unnamed seamount in the Caroline Ridge,Northwest *** both chelipeds are mis sing,the specimen can be distinguished from other axiid genera by a combination of characteristics:narrowly triangular ro strum;median carina and lateral gastric carina each with one prominent tooth;submedian gastric carinae converging po steriorly,with teeth;cornea weakly pigmented,eyestalk with acute distome sial tooth on dorsal surface;male pleopod 1 two-articled;pleopod 2 with appendix interna and appendix masculina;pleopods 3-5 with appendix *** molecular phylogeny suggests the new genus is most closely related to another recently described genus living inside hexactinellid sponges on seamounts in the Indian Ocean,Montanaxius Dworschak,***,it differs from Montanaxius in the shape of the rostrum,the arrangement of teeth on the carapace,and the shape of the ***,the significant molecular differences support the two belonging to different genera.

关键词： Carolinaxius kexuae gen.et sp.nov. taxonomy molecular evidence deep-sea seamount

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A new record of Cleantioides emarginata Kwon & Kim, 1992 (Crustacea, Isopoda, Valvifera) from Changjiang River estuary, China

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Chinese Journal of Oceanology and Limnology 2013年第3期31卷 625-631页

作者：刘文亮 gary C. b. POORE The State Key Laboratory of Estuarine and Coastal Research East China Normal University Museum Victoria GPO Box 666Melbourne

Abstract At present, descriptions of Cleantioides emarginata Kwon ＆ K/m, 1992 have been limited to the type locality of Pusan, In this study, we discovered this species in the Changjiang （Yangtze） River estuary, China. This represents an extension of the known geographical range of C. emarginata. In addition, we present information of a colour pattern not previously described, along with details on the estuarine habitat of the species.

关键词： Isopoda Valvifera new record estuarine species Chinese waters

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Invasive grasses consistently create similar plant-soil feedback types in soils collected from geographically distant locations

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Journal of Plant Ecology 2016年第2期9卷 180-186页

作者： Lora b.Perkins gary Hatfield Erin K.Espeland Department of Natural Resource Management South Dakota State University1 N.Campus Dr.BrookingsSD 57007USA Department of Mathematics and Statistics South Dakota State University100 Admin LaneBrookingsSD 57007USA Pest Management Research Unit USDA-ARS NPARL1500 North Central AveSidneyMT 59270USA

Aims Plants of similar life forms and closely related species have been observed to create similar types of plant–soil feedbacks(PSFs).However,investigations of the consistency of PSFs within species have not yielded clear *** example,it has been reported that species create different types of PSFs in their native and introduced *** aim of this project is to examine if four species create similar PSF types from soils collected from widely distributed areas within their introduced *** soil for this project was collected from three areas in western North *** this design,we aim to determine species-and site-specific ability to create PSFs and if the type of PSF created is consistent in all soil from all three collection *** species examined are Agropyron cristatum,Centaurea solstitialis,Poa pratensis and Taeniatherum *** We used three-field collected soils(from northern Nevada,western Montana and eastern Montana)in a two-phase greenhouse experiment to quantify the type of PSFs created by four invasive *** first phase was a conditioning phase wherein each invasive species created species-specific changes to the *** second phase of the experiment was the response phase wherein both the conditioning species and a native phytometer were grown in the conditioned soil and in unconditioned(control)*** final aboveground biomass was used to evaluate the effect of conditioning and to determine the type of PSF created by each invasive *** Findings Our results suggest that three of our four study species did show consistency in relation to *** species *** and *** consistently created PSF types that benefit conspecifics more than heterospecifics(and thus are‘invasive’PSF types)and *** consistently exhibited no,or‘neutral’,*** fourth species(***)was inconsistent:in one soil,no feedback was created;in other soil,an invasive PSF was created and in t

关键词： plant-soil feedback invasion niche construction

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