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14篇 您的检索式:作者名="R.Allen"
    题名 作者 年代 出处 被引量
1在佛罗里达湾北部红树林的大红树(Rhizophora mangle)生境中发现蛀木等足动物钻孔团水虱(Sphaeroma terebrans)显示文摘全世界的蛀木等足动物钻孔团水虱(Sphaeroma terebrans Bate)都生活在红树林根系所形成的潮间带生境中。在佛罗里达,它们几乎只专一地生活在大红树(Rhizophora mangle L.)红树林游离悬浮的气生根间,并且仅见于潮间带。由于钻孔团水虱并不摄食蛀出的根系物质,它们和红树林之间并没有牧食关系。蛀洞一经建成,即可用于:①阻止非生物因子(暴露.干燥)和生物因子的干扰;②滤食活动(悬浮的沉积物、藻类和细菌);③繁殖和产后恢复。钻孔团水虱由于蛀洞对海上建筑设施的危害很大,因而造成巨大的经济损失。对于蛀洞的生物学意义争议很大,讨论的话题从等足动物引起的“生态灾难”到给红树林带来的益处。R.Allen Brooks 周立志 王翔 2004AMBIO-人类环境杂志2004,33,3:4
2A clinicopathologic and immunohistochemical study of 35 anaplastic carcinomas of the pancreas with a review of the literature显示文摘Edina Paal Lester D.R. Thompson R.Allen Frommelt Ronald M. Przygodzki Clara S. Heffess 2001Annals of Diagnostic Pathology2001,,3:3
3Why Learning To Write Chinese Is a Waste of Time: A Modest Proposal显示文摘Joseph R.Allen 2009Foreign Language Annals2009,,2:2
4Using a Game to Engage Stakeholders in Extreme Event Attribution Science显示文摘The impacts of weather and climate-related disasters are increasing,and climate change can exacerbate many disasters.Effectively communicating climate risk and integrating science into policy requires scientists and stakeholders to work together.But dialogue between scientists and policymakers can be challenging given the inherently multidimensional nature of the issues at stake when managing climate risks.Building on the growing use of serious games to create dialogue between stakeholders,we present a new game for policymakers called Climate Attribution Under Loss and Damage:Risking,Observing,Negotiating(CAULDRON).CAULDRON aims to communicate understanding of the science attributing extreme events to climate change in a memorable and compelling way,and create space for dialogue around policy decisions addressing changing risks and loss and damage from climate change.We describe the process of developing CAULDRON,and draw on observations of players and their feedback to demonstrate its potential to facilitate the interpretation of probabilistic climate information and the understanding of its relevance to informing policy.Scientists looking to engage with stakeholders can learn valuable lessons in adopting similar innovative approaches.The suitability of games depends on the policy context but,if used appropriately,experiential learning can drive coproduced understanding and meaningful dialogue.Hannah R.Parker Rosalind J.Cornforth Pablo Suarez Myles R.Allen Emily Boyd Rachel James Richard G.Jones Friederike E.L.Otto Peter Walton 2016International Journal of Disaster Risk Science2016,7,4:1
5Is Blood Thicker Than Water? A Study of Stewardship Perceptions in Family Business显示文摘James H.Davis Mathew R.Allen H. DavidHayes 2010Entrepreneurship Theory and Practice2010,,6:1
6复杂大地震分析和龙陵地震震源过程显示文摘周蕙兰 Hiroo Kanamori Clarence R.Allen 1984地球物理学报1984,,06:1
7Stem design and dislocation after revision total hip arthroplasty: Clinical results and computer modeling显示文摘Robert L. Barrack R.Allen Butler Daniel R. Laster Pamela Andrews 2001The Journal of Arthroplasty2001,,8:1
8Liberty,Property,and the Foundation of American Constitution显示文摘Paul R.Allen 0,,:1
9Endometrial gland surface density and hyperaemia of the endometrium during early pregnancy in the mare显示文摘A.‐C.Lefranc W. R.Allen 2010Equine Veterinary Journal2010,,6:1
10复杂大地震分析和龙陵地震震源过程显示文摘周蕙兰 Hiroo Kanamori Clarence R.Allen 1984地球物理学报1984,,06:1
11A survey of analytical methods for inclusion in a new energy-water nexus knowledge discovery framework显示文摘The energy-water nexus,or the dependence of energy on water and water on energy,continues to receive attention as impacts on both energy and water supply and demand from growing popula-tions and climate-related stresses are evaluated for future infra-structure planning.Changes in water and energy demand are related to changes in regional temperature,and precipitation extremes can affect water resources available for energy genera-tion for those regional populations.Additionally,the vulnerabilities to the energy and water nexus are beyond the physical infrastruc-tures themselves and extend into supporting and interdependent infrastructures.Evaluation of these vulnerabilities relies on the integration of the disparate and distributed data associated with each of the infrastructures,environments and populations served,and robust analytical methodologies of the data.A capability for the deployment of these methods on relevant data from multiple components on a single platform can provide actionable informa-tion for interested communities,not only for individual energy and water systems,but also for the system of systems that they com-prise.Here,we survey the highest priority data needs and analy-tical methods for inclusion on such a platform.Melissa R.Allen Syed Mohammed Arshad Zaidi Varun Chandola April M.Morton Christa M.Brelsford Ryan A.McManamay Binita KC Jibonananda Sanyal Robert N.Stewart Budhendra L.Bhaduri 2018Big Earth Data2018,2,3:0
12Machine learning for energy-water nexus: challenges and opportunities显示文摘Modeling the interactions of water and energy systems is important to the enforcement of infrastructure security and system sustainabil-ity.To this end,recent technological advancement has allowed the production of large volumes of data associated with functioning of these sectors.We are beginning to see that statistical and machine learning techniques can help elucidate characteristic patterns across these systems from water availability,transport,and use to energy generation,fuel supply,and customer demand,and in the interde-pendencies among these systems that can leave these systems vul-nerable to cascading impacts from single disruptions.In this paper,we discuss ways in which data and machine learning can be applied to the challenges facing the energy-water nexus along with the potential issues associated with the machine learning techniques themselves.We then survey machine learning techniques that have found application to date in energy-water nexus problems.We con-clude by outlining future research directions and opportunities for collaboration among the energy-water nexus and machine learning communities that can lead to mutual synergistic advantage.Syed Mohammed Arshad Zaidi Varun Chandola Melissa R.Allen Jibonananda Sanyal Robert N.Stewart Budhendra L.Bhaduri Ryan A.McManamay 2018Big Earth Data2018,2,3:0
13Mercury bioaccumulation in aquatic biota along a salinity gradient in the Saint John River estuary显示文摘Although estuaries are critical habitats for many aquatic species, the spatial trends of toxic methylmercury(MeHg) in biota from fresh to marine waters are poorly understood. Our objective was to determine if MeHg concentrations in biota changed along a salinity gradient in an estuary. Fourspine Stickleback(Apeltes quadracus), invertebrates(snails,amphipods, and chironomids), sediments, and water were collected from ten sites along the Saint John River estuary, New Brunswick, Canada in 2015 and 2016, with salinities ranging from 0.06 to 6.96. Total mercury(proxy for MeHg) was measured in whole fish and MeHg was measured in a subset of fish, pooled invertebrates, sediments, and water. Stable sulfur(δ^(34)S), carbon(δ^(13) C), and nitrogen(δ^(15)N) isotope values were measured to assess energy sources(S, C) and relative trophic level(N). There were increases in biotic δ^(13)C and δ^(34)S from fresh to more saline sites and these measures were correlated with salinity.Though aqueous MeHg was higher at the freshwater than more saline sites, only chironomid MeHg increased significantly with salinity. In the Saint John River estuary, there was little evidence that MeHg and its associated risks increased along a salinity gradient.Bethany L.Reinhart Karen A.Kidd R.Allen Curry Nelson J.O’Driscoll Scott A.Pavey 2018Journal of Environmental Sciences2018,30,6:0
14A Systematic Approach to Pulmonary Valve Replacement in the Current Era显示文摘Background:Pulmonary valve replacement(PVR)can be accomplished via surgical,transcatheter,or hybrid approaches.There are inherent advantages to transcatheter PVR and hybrid PVR without cardiopulmonary bypass.We review the methods and results of a standardized institutional approach to PVR.Methods:Retrospective review of all PVR cases between February 2017 and February 2020.Hybrid PVR entailed off-pump RVOT plication with percutaneous transcatheter PVR.Results:Primary transcatheter PVR was attempted in 37,hybrid PVR was performed in 11,and on-pump surgical PVR was performed in 9.Median age at PVR was 27 years(6–65).Primary transcatheter PVR was successful in 35/37(2 converted to surgical).Standard surgical PVR was utilized for positive coronary compression testing(n=4),stent/valve system migration(n=2),or patient preference(n=3).In the hybrid group mean RVOT diameter was 34 mm(32–38).Median length of stay was 1 day for transcatheter PVR,5 for surgical,and 3 for hybrid(p=0.02).Median follow-up was 1.5 years.Re-interventions were one balloon valve dilation in a transcatheter PVR,and one valve dilation with subsequent transcatheter valve-in-valve PVR in the surgical cohort.One hybrid patient expired 11 months post procedure.Conclusions:A systematic approach to PVR utilizing all approaches in pre-defined order of preference leads to consistent outcomes in a wide variety of anatomic configurations.Transcatheter PVR may be accomplished in the majority of patients.When necessary,hybrid off-pump RVOT plication with transcatheter PVR avoids the need for cardiopulmonary bypass.R.Allen Ligon Larry A.Latson Mark M.Ruzmetov Kak-Chen Chan Todd Roth Immanuel I.Turner Frank G.Scholl Steve Bibevski 2021Congenital Heart Disease2021,16,3:0
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