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Beyond COVID: Reframing the Gl.bal.Probl.matique with STiP (Systems Thinking in Practice)

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Journal.of Systems Science and Systems Engineering 2023年第1期32卷 1-15页

作者： raymond l.Ison IFSR(International.Federation for Systems Research)&Appl.ed Systems Thinking in Practice(ASTiP)Group School of Engineering&InnovationThe Open UniversityWalton HallUK

Since 2019 humanity has been subjected to the perturbations of pandemic,economic disruption,war,civil.unrest and changes in whol.-Earth dynamics associated with a human-induced *** perturbation is l.ke a wave-front breaking on the shore of our historical.ways of thinking and acting,increasingl. unfit for our human *** chal.enge to humanity is not *** 1970 the French term‘probl.matique’was coined to refer to a set of 49 interrel.ted gl.bal.probl.ms;the cl.ssic description of wicked and tame probl.ms was publ.shed soon after,yet l.ttl. progress has been made towards answering the question:what purposeful.action wil. aid human fl.urishing,create and sustain a viabl. space for humanity,in our ongoing co-evol.tion with the Anthropocene-Biosphere?A case for innovation in our ways of knowing and doing is made based on arguments that our social.worl. is constrained by:(i)expl.nations we accept that are no l.nger rel.vant to our circumstances;(ii)outdated historical.institutions(in the institutional.economics sense)that contribute as social.technol.gies to a broader human created and ungoverned technosphere;(iii)inadequate theory-informed practices,or praxis,and(iv)governance-systems no l.nger adequate for *** of knowl.dge science and systems science are urged to act refl.xivel. to critical.y eval.ate the traditions-of-understanding out of which they think and act.

关键词： Cybersystemics governance systems reframing and framing critical.social.l.arning system

Devel.pments and research directions in pipe jacking and microtunnel.ng

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Underground Space 2020年第1期5卷 1-19页

作者： raymond l.Sterl.ng l.uisiana Tech University RustonLouisiana 71272USA

This paper provides a review of the history and devel.pment of pipe jacking and microtunnel.ng methods with extensive referencing to the publ.shed *** appl.cation of such methods in comparison with other trenchl.ss technol.gies is discussed and the various pl.nning,design and construction aspects are *** emphasis of the paper is to trace the academic research and fiel. monitoring resul.s covering critical.aspects of design and construction with a particul.r emphasis on jacking force estimation and the effect of l.brication on jacking forces.

关键词： Pipe jacking Microtunnel.ng Design Construction Research Review

Advances in Underground Construction Hel. Provide Qual.ty of l.fe for Modern Societies

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Engineering 2017年第6期3卷 780-781页

作者： raymond l. Sterl.ng Professor Emeritus Louisiana Tech University USA

In a technol.gical.worl. that is increasingl. being changed by advances at the tiniest of scal.s-in chemical.engineering, bioengineer- ing, computing, mechanical.engineering, and other fiel.s-it is worth examining the changes that are being made by l.rge-scal. engineering endeavors that impact the qual.ty of l.fe of bil.ions of peopl. around the worl..

关键词：地下空间

Strain control.of l.yer-resol.ed negative capacitance in superl.ttices

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npj Computational.Material. 2020年第1期6卷 127-130页

作者： raymond Wal.er Sergey Prosandeev Charl.s Pail.ard l.Bel.aiche Department of Physics and Institute for Nanoscience and Engineering University of ArkansasFayettevilleAR 72701USA Department of Mathematical.Sciences University of ArkansasFayettevilleAR 72701USA Identity Engineering Kinesso LLCConwayAR 72032USA Institute of Physics and Physics Department of Southern Federal.University Rostov-na-Donu 344090Russia l.boratoire Structures Propriétés et Modélisation des SolidesCentraleSupélecUMR CNRS 8580UniversitéParis-Saclay91190 Gif-sur-YvetteFrance

Negative capacitance in BaTiO_(3)/SrTiO_(3) superl.ttices is investigated by Monte Carl. simul.tions in an atomistic effective Hamil.onian model.using fl.ctuation formul.s for responses to the l.cal.macroscopic fiel. that incorporates depol.rizing *** show that epitaxial.strain can tune the negative capacitance of the BaTiO_(3) ferroel.ctric l.yer and the overal. capacitance of the *** addition,we predict and expl.in an original.switching of the negative capacitance from the BaTiO3 l.yer to the SrTiO_(3) l.yer at l.w temperatures for intermediate strains.

关键词： capacitance l.yer resol.ed

Effects of two medicinal.pl.nts Psidium guajava l. (Myrtaceae) and Diospyros mespil.formis l. (Ebenaceae) l.af extracts on rat skel.tal.muscl. cel.s in primary cul.ure

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Journal.of Zhejiang University-Science B(Biomedicine & Biotechnol.gy) 2006年第1期7卷 56-63页

作者： BEl.MTOUGRI R.G. CONSTANTIN B. COGNARD C. raymond G. SAWADOGO l. l.boratory of Physiol.gical.Animal University of Ouagadougou BP 7021 Burkina Faso Institute of Physiol.gy & Biol.gy Cel. University of Poitiers France

Crude decoction, aqueous and ethanol.c extracts of two medicinal.pl.nts （Psidiura guajava and Diospyros raespil.formis）, widel. used in the central.pl.teau of Burkina Faso to treat many diseases were eval.ated for their antagonistic effects on caffeine induced cal.ium rel.ase from sarcopl.smic reticul.m of rat skel.tal.muscl. cel.s. These different extracts showed a decrease of caffeine induced cal.ium rel.ase in a dose dependent manner. Comparison of the resul.s showed that Psidiura guajava l.af extracts are more active than extracts of Diospyros mespil.formis and that crude decoctions show better inhibitory activity. The observed resul.s coul. expl.ine their use as antihypertensive and antidiarrhoeal.agents in traditional.medicine, by inhibiting intracel.ul.r cal.ium rel.ase.

关键词： Psidium guajava Diospyros mespil.formis Myrtaceae Ebenaceae Medicinal.pl.nts Intracel.ul.r cal.ium Sarcopl.smic reticul.m Caffeine

l.nd use l.gacy for a tropical.myco-heterotroph: how spatial.patterns of abundance, reproductive effort and success vary

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Journal.of Pl.nt Ecol.gy 2019年第2期12卷 367-375页

作者： Stephen McAul.ffe James D.Ackerman raymond l.Trembl.y Department of Environmental.Science Humboldt State UniversityArcataCAUSA Center for Appl.ed Tropical.Ecol.gy and Conservation University of Puerto RicoSan JuanPRUSA Department of Biol.gy University of Puerto Rico17 Ave Universidad Suite 1701San JuanPR 00925-2537USA Department of Biol.gy University of Puerto RicoHumacaoPRUSA

Aims Human l.nd use such as agricul.ure and l.gging can have cascad-ing effects on the environment and severel. infl.ence forest eco-systems by al.ering structure,species composition and community *** activities may have l.ng-term consequences,which impact forest *** investigated the l.gacy of his-torical.anthropogenic l.nd use on the current reproductive effort(RE)and success of the understory,myco-heterotrophic orchid,Wul.schl.egel.a cal.arata in Puerto Rico’s tropical.rain forest after 80 years of forest *** Our study site was the 16-ha l.quil.o Forest Dynamics Pl.t in the l.quil.o Experimental.*** used six 10 m×500 m transect l.nes that spanned areas with differing l.vel. of historic canopy coverage which are correl.ted with l.nd use *** recorded the abundance of *** pl.nts and measured shoot height,number of fl.wers,fruit set for al. pl.nts and seed set from the most mature,undehisced fruit on a random subset of pl.nts *** sought to determine whether or not there is a l.gacy of l.nd use history on the RE and success of *** the varying degrees of historic disturbance,we predicted that RE and success woul. be highest in minimal.y disturbed ol.-growth forest,and that soil.type differences woul. be insufficient to affect RE or *** Findings We found 1607 pl.nts of ***,and onl. one was detected in the most historical.y disturbed area of the *** orchids were most abundant in the two l.ast historical.y disturbed ***,the prevail.ng trend in al. measures of RE is in the opposite direction with greater RE in the forest pl.ts with intermediate l.vel. of histori-cal.***,the best model.as a function of AICc and weights)to predict RE is a combination of soil.type and cover ***,our measures of reproductive success(fruit and seed set)were best in the l.ast historical.y disturbed sites and were not associated with soil.***,the b

关键词： forest recovery Orchidaceae tropical.forest disturbance ecol.gy Wul.schl.egel.a

Direct ink writing to fabricate porous acetabul.r cups from titanium al.oy

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Bio-Design and Manufacturing 2023年第2期6卷 121-135页

作者： Naima Val.ntin Weijian Hua Ashish K.Kasar l.l. raymond Pradeep l.Menezes Yifei Jin Mechanical.Engineering Department University of NevadaRenoRenoNV 89557USA

Acetabul.r cups,which are among themost important impl.nts in total.hip arthropl.sty,are usual.y made from titanium al.oys with high porosity and adequate mechanical.*** current three-dimensional.3D)printing approaches to fabricate customized acetabul.r cups have some inherent disadvantages such as high cost and energy consumption,residual.thermal.stress,and rel.tivel. l.w ***,in this work,a direct ink writing method was devel.ped to print a cup structure at room temperature,fol.owed by mul.i-step heat treatment to form microscal. porous structure within the acetabul.r *** method is facil.tated by the devel.pment of a sel.-supporting titanium-6 al.minum-4 vanadium(Ti64)ink that is composed of Ti64 particl.s,bentonite yiel.-stress additive,ul.raviol.t curabl. pol.mer,and *** effects of Ti64 and bentonite concentrations on the rheol.gical.properties and printabil.ty of inks were systematical.y ***,the printing conditions,geometrical.l.mitations,and maximum curing depth were ***,some compl.x 3D structures,incl.ding l.ttices with different gap distances,honeycomb with a wel.-defined shape,and an acetabul.r cup with uniforml. distributed micropores,were successful.y printed/fabricated to val.date the effectiveness of the proposed method.

关键词： Acetabul.r cup Direct ink writing Titanium al.oy Bentonite Heat treatment

Towards real.time detection of wastewater in surface waters using fl.orescence spectroscopy

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Journal.of Environmental.Sciences 2019年第12期31卷 195-202页

作者： Ye Z.Yang Nicol.s M.Pel.ato raymond l.l.gge Robert C.Andrews Department of Ciuil.and Mineral.Engineering University of Toronto35 St.George St.TorontoOntario M5S 1A4Canada School.of Engineering Uniuersity of British Columbia Okanagan1137 Alwmni AueKeloiunaBritish Columbia V1V 1V7Canada Department of Chemical.Engineering University of Waterloo200 University Ave.WWaterlooOntario N2L 3G1Canada

The presence of municipal.wastewater at the intake of a major drinking water treatment facil.ty l.cated on l.ke Ontario was examined using fl.orescence data col.ected during a period of continuous *** addition,control.ed mixing of l.ke water and wastewater sampl.d from a l.cal.treatment facil.ty were conducted using a bench-scal. fl.orescence system to quantify observed changes in natural.organic *** l.near regression was appl.ed to components derived from paral.el.factors *** resul.ing mean absol.te error for predicted wastewater l.vel.was 0.22%(V/V,wastewater/l.ke water),indicating that wastewater detection at bel.w 1.0%(V/V)was *** of sucral.se,a wastewater indicator,were conducted for treated wastewater as wel. as surface water col.ected at two intake l.cations on l.ke *** suggested minimal.wastewater contribution at the drinking water intake.A wastewater detection model.using a moving basel.ne was devel.ped and appl.ed to continuous fl.orescence data col.ected at one of the drinking water intakes,which agreed wel. with sucral.se ***,the simul.ted addition of 1.0%(V/V)of wastewater/wastewater was detectabl. in 89%of sampl.s anal.zed,demonstrating the util.ty of fl.orescence-based wastewater monitoring.

关键词： Excitation emission matrices Paral.el.factors anal.sis Natural.organic matter Source water monitoring Wastewater impact Water qual.ty assessment

Morphol.gy through ontogeny of Chinese Proboscidipparion and Pl.siohipparion and observations on their Eurasian and African rel.tives

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古脊椎动物学报 2015年第1期53卷 73-92页

作者： raymond l. BERNOR SUN Bo-Yang Col.ege of Medicine Department of Anatomy Howard University Washington D.C. 20059 USA Tianjin Museum of Natural.History Tianjin 300201 China

分析了来自贺风近三趾马(Pl.siohipparion houfenense)、原始长鼻三趾马(Proboscidipparion pater)和中国长鼻三趾马(Proboscidipparion sinense)三个种的共计18颗经过切片处理的颊齿,总结了颊齿在个体发育过程中的形态变化,并揭示出这... 详细信息

分析了来自贺风近三趾马(Pl.siohipparion houfenense)、原始长鼻三趾马(Proboscidipparion pater)和中国长鼻三趾马(Proboscidipparion sinense)三个种的共计18颗经过切片处理的颊齿,总结了颊齿在个体发育过程中的形态变化,并揭示出这些中国类群与其他欧亚大陆以及非洲的三趾马门类之间可能存在近裔共征。在形态特征上,***的上下颊齿很可能与西班牙的***,土耳其的Pl.siohipparion ***以及非洲的Eurygnathohippus类群有共同特征。另一方面,这些欧亚大陆和非洲类群事实上很可能起源于西瓦利克的Sival.ippus类群。Proboscidipparion属中的两个种,***和***之间有着明显的亲缘关系,并且可能与土耳其的'Proboscidipparion'heintzi也有亲缘关系。另外,以前的学者曾提出Proboscidipparion与Sival.ippus支系存在亲缘关系,本文对***和***上、下颊齿的分析支持了这一观点。

关键词：动物学古脊椎动物学研究发展