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Contrasting sorption behaviours affecting groundwater arsenic concentration in Kandal Province,Cambodia

Geoscience Frontiers 2019年第5期10卷 1701-1713页

作者： Laura A. Richards maria j. casanueva-marenco Daniel Magnone Chansopheaktra Sovann Bart E. van Dongen David A. Polya School of Earth and Environmental Sciences and Williamson Research Centre for Molecular Environmental Science The University of ManchesterWilliamson BuildingOxford RoadManchesterM13 9PLUK Department of Analytical Chemistry Institute of BiomoleculesFaculty of SciencesUniversity of CádizCádizSpain School of Geography University of LincolnBrayford PoolLincolnLincolnshireLN6 7TSUK Department of Environmental Science Royal University of Phnom PenhPhnom PenhCambodia

Natural arsenic (As) contamination of groundwater which provides drinking water and/or irrigation supplies remains a maj.r public health issue,particularly in South and Southeast Asia.A number of studies have evaluated various aspects of the biogeochemical controls on As mobilization in aquifers typical to this region,however many are predicated on the assumption that key biogeochemical processes may be deduced by sampled water *** validity of this assumption has not been clearly established even though the role of sorption/desorption of As and other heavy metals onto Fe/Mn (hydr) oxides is an important control in As ***,selective chemical extractions of sand-rich and clay-rich sediments from an As-affected aquifer in Kandal Province,Cambodia,were undertaken to explore the potential role of partial re-equilibrium through sorption/desorption reactions of As and related solutes (Fe,Mn and P) between groundwater and the associated solid aquifer *** general,groundwater As is strongly affected by both pH and Eh throughout the study ***,contrasting sorption behaviour is observed in two distinct sand-dominated (T-Sand) and clay dominated (T-Clay) transects,and plausibly attributed to differing dominant lithologies,biogeochemical and/or hydrogeological ***/desorption processes appear to be re-setting groundwater As concentrations in both transects,but to varying extents and in different *** T-Sand,which is typically highly reducing,correlations suggest that dissolved As may be sequestered by sorption/re-adsorption to Fe-bearing mineral phases and/or sedimentary organic matter;in T-Clay Eh is a maj.r control on As mobilization although binding/occlusion of Fe-bearing minerals to sedimentary organic matter may also *** linear regression analysis was conducted with groups categorised by transect and by Eh,and the output correlations support the contrasting sorption behaviours encountered in this study area.I

关键词： Arsenic Groundwater Partial equilibrium Sorption Water-rock interactions Cambodia

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New imaging technologies for robotic kidney cancer surgery

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Asian j.urnal of Urology 2022年第3期9卷 253-262页

作者： Stefano Puliatti Ahmed Eissa Enrico Checcucci Pietro Piazza Marco Amato Stefania Ferretti Simone Scarcella j.an Gomez Rivas Mark Taratkin j.se marenco Ines Belenchon Rivero Karl-Friedrich Kowalewski Giovanni Cacciamani Ahmed El-Sherbiny Ahmed Zoeir Abdelhamid MEl-Bahnasy Ruben De Groote Alexandre Mottrie Salvatore Micali Urology Department University of Modena&Reggio EmiliaModenaItaly ORSI Academy MelleBelgium Urology Department Faculty of MedicineTanta UniversityTantaEgypt Department of Surgery Candiolo Cancer InstituteFPO-IRCCSCandioloTurinItaly Division of Urology IRCCS Azienda Ospedaliero-Universitaria di BolognaBolognaItaly Department of Urology Polytechnic University of Marche RegionUmberto I Hospital“Ospedali Riuniti”AnconaItaly Uro-technology and SoMe Working Group of the Young Academic Urologists Working Party European Association of UrologyArnhemthe Netherlands Department of Urology Hospital Clinico San CarlosMadridSpain Institute for Urology and Reproductive Health Sechenov UniversityMoscowRussia Department of Urology Fundacio´n Instituto Valenciano de Oncologı´aValenciaSpain Urology and Nephrology Department Virgen del Rocı´o University HospitalManuel Siurot Sin NumeroSevilleSpain Department of Urology and Urological Surgery University Medical Centre MannheimMannheimGermany USC Institute of Urology University of Southern CaliforniaLos AngelesCAUSA Department of Urology Onze-Lieve-VrouwziekenhuisAalstBelgium

Obj.ctive:Kidney cancers account for approximately 2%of all newly diagnosed cancer in *** the primary treatment options for kidney cancer,urologist may choose between radical or partial nephrectomy,or ablative ***,robotic-assisted partial nephrectomy(RAPN)for the management of renal cancers has gained popularity,up to being considered the gold ***,RAPN is a challenging procedure with a steep learning ***:In this narrative review,different imaging technologies used to guide and aid RAPN are ***:Three-dimensional visualization technology has been extensively discussed in RAPN,showing its value in enhancing robotic-surgery training,patient counseling,surgical planning,and intraoperative *** imaging technologies such as intracorporeal ultrasound,near-infrared fluorescent imaging,and intraoperative pathological examination can also be used to improve the outcomes following ***,artificial intelligence may play a role in the field of RAPN ***:RAPN is a complex surgery;however,many imaging technologies may play an important role in facilitating it.

关键词： Kidney cancer Imaging Technology Robotic

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