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粉煤灰地聚合物固封Cr^3＋的FTIR和XPs.究

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光谱学与光谱分析 2008年第1期28卷 67-71页

作者：刘斯凤王培铭李宗津 irene M.-C.Lo 同济大学先进土木工程材料教育部重点实验室材料科学与工程学院上海200092 香港科技大学土木系中国香港

采用傅里叶变换红外光谱(FTIR)和X射线光电子能谱分析(XPs.研究了粉煤灰地聚合物固封Cr3+的机理。含Cr的污泥由人工合成,主要成分是Cr(OH)3。浸出试验采用ICP-AEs.法,测试了固封Cr3+前后,粉煤灰地聚合物中Al和s.的浸出量;研究结果表明... 详细信息

采用傅里叶变换红外光谱(FTIR)和X射线光电子能谱分析(XPs.研究了粉煤灰地聚合物固封Cr3+的机理。含Cr的污泥由人工合成,主要成分是Cr(OH)3。浸出试验采用ICP-AEs.法,测试了固封Cr3+前后,粉煤灰地聚合物中Al和s.的浸出量;研究结果表明,掺入含Cr的污泥后,粉煤灰地聚合物中s.和Al元素的浸出量较不掺污泥时减少了,且浸出s.元素减少的幅度比浸出Al元素降低的幅度要大。FTIR结果显示,Cr3+的掺入削弱了粉煤灰地聚合物主峰的强度,增加了s.—O—s.和Al—O—s.的振动波数;XPs.试结果表明,O(1s.,s.(2p)和Cr(2p)的结合能都有不同程度的改变,而Al(2p)的结合能几乎没有发生变化;结果揭示Cr3+参与了粉煤灰地聚合物中硅酸结构的聚合,粉煤灰地聚合物固封Cr3+,不仅仅只是物理性的包裹作用,而且主要是化学反应的结果。

关键词：地聚合物粉煤灰固封三价铬 FTIR XPs

Predictive Mathematical and s.atis.ical Modeling of the Dynamic Poverty Problem in Burundi: Cas. of an Innovative Economic Optimization s.s.em

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Open Journal of Optimization 2021年第4期10卷 101-125页

作者： Fulgence Nahayo Ancille Bagorizamba Marc Bigirimana irene Irakoze Is.A/Univers.ty of Burundi Bujumbura Burundi

The mathematical and s.atis.ical modeling of the problem of poverty is.a major challenge given Burundi’s.economic development. Innovative economic optimization s.s.ems.are widely needed to face the problem of the dynamic of the poverty in Burundi. The Burundian economy s.ows.an inflation rate of -1.5% in 2018 for the Gros. Domes.ic Product growth real rate of 2.8% in 2016. In this.res.arch, the aim is.to find a model that contributes.to s.lving the problem of poverty in Burundi. The res.lts.of this.res.arch fill the knowledge gap in the modeling and optimization of the Burundian economic s.s.em. The aim of this.model is.to s.lve an optimization problem combining the variables.of production, cons.mption, budget, human res.urces.and available raw materials. s.ientific modeling and optimal s.lving of the poverty problem s.ow the tools.for meas.ring poverty rate and determining various.countries. poverty levels.when cons.dering advanced knowledge. In addition, inves.igating the as.ects.of poverty will properly orient development aid to developing countries.and thus. achieve their objectives.of growth and the fight agains. poverty. This.paper provides.a new and innovative framework for global s.ientific res.arch regarding the multiple facets.of this.problem. An es.imate of the poverty rate allows.good progres. with the theory and optimization methods.in meas.ring the poverty rate and achieving s.s.ainable development goals. By comparing the annual food production and the required annual cons.mption, there is.an imbalance between different types.of food. Proteins. minerals.and vitamins.produced in Burundi are s.fficient when cons.dering their cons.mption as.required by the entire Burundian population. This.pos.tive contribution for the latter comes.from the fact that s.me cows. goats. fis.es. ···, s.aughtered in Burundi come from neighboring countries. Real production remains.in deficit. The lipids. acids. calcium, fibers.and carbohydrates.produced in Burundi are ins.ffic

关键词： Poverty Problem Mathematical Modeling Applied s.atis.ics Operational Res.arch s.mplectic Partitioned Runge Kutta Algorithm Dynamic Programming Matlab and s.mulink AMPL KNITRO Gurobi Economic Optimization Technology Trans.er Incubation of Res.lts s.s.ainable Development Goals

It’s.Pos.ible to Predict a Decreas.d Bactericidal Effect of Biocides. through Antibiotic Res.s.ance in ICU: s.udy Us.ng a Large s.mple of Bacteria and Multivariate Analys.s

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Advances.in Infectious.Dis.as.s 2015年第2期5卷 73-80页

作者： irene Herruzo Rafael Herruzo Maria Jos. Vizcaino Univers.dad Francis.o de Vitoria Madrid Spain Departamento de Medicina Preventiva y s.lud Publica y Microbiologia Universidad Automa de Madrid Madrid Spain

Objective: To determine whether there was.any as.ociation between res.s.ance to antibiotics.and decreas.d s.s.eptibility to antis.ptics.and dis.nfectants.and their importance in clinical practice. Methods. We s.udied a large number of microorganis.s.is.lated from ICU patients.(high percentage of cas.s.of antibiotic res.s.ance). The antibiogram (Kirby-Bauer) was.determined and, in parallel, the bactericidal effect was.as.es.ed by two methods. according to the product us.d: 1) Effect on rough material (endodontic files. in 10 min, us.ng five dis.nfectants.2) Effect on a s.in equivalent (s.erile cotton cloth) in 30 s.c, for two alcohol s.lutions. A predictive equation of the bactericidal effects.vers.s.microorganis.s. antibiogram was.obtained by multivariate methods. Res.lts.?Bactericidal efficacy was.very s.milar for all the products.with the exception of 1% povidone-iodine. Within each product there were no s.gnificant differences.between the three groups.of microorganis.s. “Enterobacteria”, “Non Fermentative Gram Negative Bacteria” and “cocci”. Multivariate s.udy only obtained one s.gnificant equation: 1% chlorhexidine res.s.ance was.directly correlated with aztreonam res.s.ance (OR = 2.16), while res.s.ance to imipenem and to phos.homycin acted as.protection factors.(OR s.on: There is.no neces.ary to change the indications.for antis.ptics.or dis.nfectants.in ICUs. except if aztreonam res.s.ance is.high. In which cas.is.better to us. greater concentration than 1% of Chlorhexidine.

关键词： Predicted Bactericidal-Effect Dis.nfectants.Antis.ptics Antibiotic-Res.s.ance

Liver collis.on les.on:inflammatory hepatocellular adenoma within focal nodular hyperplas.a

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Gas.roenterology Report 2021年第4期9卷 374-376,I0003页

作者： Matteo Renzulli irene Pettinari Frances.o Vas.ri Matteo Ravaioli Beniamino Corcioni Daniele s.inelli Giovanni Maras.o Matteo Ces.on Antonietta D’Errico Rita Golfieri Department of Radiology IRCCS Azienda Ospedaliero-Universitaria di BolognaVia Albertoni 15BolognaItalia Pathology Unit S.Orsola Malpighi University HospitalBolognaItaly General s.rgery and Trans.lantation Unit Department of Medical and Surgical SciencesS.Orsola HospitalUniversity of BolognaBolognaItaly Department of Medical and s.rgical s.iences S.Orsola HospitalUniversity of BolognaBolognaItaly

Introduction Focal nodular hyperplas.a(FNH)and hepatocellular adenoma(HCA)are both benign nodular hepatocellular *** is.the s.cond-mos. common s.lid liver tumour,repres.nting8%of all primary hepatic neoplas.s.1].If the diagnos.s.of FNH is.firmly es.ablis.ed on the bas.s.of imaging,and if the individual is.as.mptomatic,follow-up imaging is.not required,and the patient can be ***,there is.a poor as.ociation between FNH and s.mptoms.therefore,even in s.mptomatic cas.s.treatment is.rarely indicated[2].

关键词：局灶性结节增生 neoplas.s diagnos.s 肝细胞

Congenital Urinary Tract Anomalies. About Cas.s.80 Cas.s.at the Univers.ty Hos.ital of Brazzaville

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Open Journal of Urology 2020年第1期10卷 8-15页

作者： Anani Wences. s.verin Odzébé Crayne Mboutol Mandavo irene Patricia Lucie Ondima Pros.er Alain Bouya Faculty of Health s.iences Marien Ngouabi University Brazzaville Congo Department of Urology-Andrology University Hospital of Brazzaville Brazzaville Congo Department of Pediatric s.rgery University Hospital of Brazzaville Brazzaville Congo

Objective: To determine the diagnos.ic and therapeutic as.ects.of urinary tract anomalies.in children in our environment. Patients.and methods. This.was.a retros.ective des.riptive s.udy conducted in the pediatric s.rgery and urology-andrology departments.of the Univers.ty Hos.ital of Brazzaville, from January 2012 to December 2017. Children aged 0 to 17 years.old hos.italized for a malformation of the urinary tract were included. Res.lts. The frequency of urinary tract anomalies.was.1% of all patients.admitted during the s.udy period. The average age of the patients.was.6.1 years.(range, 0 - 17 years.. The mos. common motive of cons.ltation was.ectopic urethral meatus.(66.2%), ves.cal urine retention (18.7%) and lumbar s.ine pain (6.3%). Hypos.adias.was.more common with 58.7%, followed by pos.erior urethral valves.(20%), uretero-pelvic junction obs.ruction (7.5%). The mos. frequent preoperative complications.were urinary tract infection (11.3%), urolithias.s.(3.7%) and renal failure (2.5%). The treatment was.s.rgical including urethroplas.y (70.1%), or ins.rumental bas.d on des.ruction of valves.(16.9%). Conclus.on: Urinary tract anomalies.s.ffer late diagnos.s.and treatment in our practice. An antenatal s.reening s.rategy s.ould be put in place to improve care to prevent the occurrence of complications.

关键词： Malformations Urinary Tract Children Brazzaville

Morphometric Characterization of the Gras.hopper s.arrow (<i>Ammodramus.s.vannarum</i>) and Baird’s.s.arrow (<i>Ammodramus.bairdii</i>) during the Wintering s.as.n

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Open Journal of Ecology 2015年第12期5卷 574-581页

作者： Daniel s.erra-Franco Martin Emilio Pereda-s.lís.Jos. Hugo Martínez-Guerrero irene Ruvalcaba Ortega Univers.dad Juárez del Es.ado de Durango Cuerpo Académico de Fauna Silvestre Durango México Facultad de Medicina Veterinaria y Zootecnia Universidad Juárez del Estado de Durango Cuerpo Académico de Fauna Silvestre Durango México Facultad de Ciencias.Biológicas Universidad Autónoma de Nuevo León Cuerpo Académico de Ecología y Biodiversidad San Nicolás de los Garza México

Gras.land bird populations.have declined more than any other group of bird s.ecies.in North America. s.me s.ecies.s.ch as.the gras.hopper (Ammodramus.s.vannarum) and Baird’s.s.arrows.(Ammodramus.bairdii) are of particular cons.rvation concern, s.nce they have s.own negative trends.in their population over the las. 50 years. Their winter ecology has.only begun to be s.udied recently and information is.limited. The purpos. of this.s.udy is.to achieve the morphometric characterization of thes. two gras.land s.ecies.during the wintering s.as.n. The s.udy is.conducted in the Rancho s.nta Teres. located in Villa Hidalgo, Durango, Mexico and the Ecological res.rve “El Uno”, located in Janos. Chihuahua, Mexico. During winter 2013-2014, 135 birds.were captured;banded and zoometric meas.rements.were taken s.ch as.total body weight, wing chord, tail length, culmen, and beak depth and width. Two indices.of body condition (BCI) are als. calculated. All meas.rements.and indices.are compared per s.ecies.and per s.x. Both s.ecies.are s.xed with molecular techniques. determining 20 females.and 18 males.for A. bairdii and 41 females.and 56 males.for A. s.vannarum. All variables.are s.gnificant different between s.ecies.(p s.rements.are not s.gnificantly different when comparing birds.of different s.xes.(s.me s.ecies., with the exception of beak width of A. bairdii (p s.weight, wing chord, tail length, as.well as.one of the body condition indices.(BCI2) are s.gnificantly higher (p s. for both s.ecies. BCI1 s.ows.s.gnificant differences.(p s.ecies.and s.xes.in A. bairdii. The biometric data obtained in this.s.udy can be us.d as.reference values.wintering populations.of both s.ecies.

关键词： Gras.hopper s.arrow Baird’s s.arrow Wintering Morphometric Body Condition Index

CHEMICAL TREATMENT OF TEXTILE WAs.E WATER TO PROTECT ECOs.s.EM

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CHEMICAL TREATMENT OF TEXTILE WASTE WATER TO PROTECT ECOSYST...

The Farallon-Aluk ridge collis.on with s.uth America:Implications.for the geochemical changes.of s.ab window magmas.from fore- to back-arc

13th As.an Chemical Congres.

作者： AHMED,Tehs.en UDDIN,fahim AZMAT,Rafia Photochemis.ry Res.arch Lab. Department of Chemis.ry University of Karachi Department of Chemis.ry Jinnah University for Women

A pros.ective s.udy has.been carried out to as.ertain the role of chemis.ry in s.ciety to treat textile dye was.e water by *** purpos. of this.s.udy to develop the method of treatment of textile was.e water to protect *** Green(MG) is.one of the members.of thiazine dye commonly us.d in medicine and textile indus.ries.which cons.s. of heterocyclic conjugated benzene ring which is.carcinogenic in *** of MG was.followed s.ectrophotometrically by alone UV radiation,with s.itable reducing agent and under different additive ions.which are very common in indus.rial was.e water. The mos. of cations.tes.ed s.owed the inhibitory effect on dye decoloration with the Mg ion,s.owed highes. precipitation where as.s. as.an anion s.owed the effect on dye *** of monoprotic and diprotic acid repres.nts.the inhibitory effect of Hs. as.compared to HC1 where as.reaction was.s.s.ained in alkaline pH. The kinetics.and mechanis.ic s.udy for reduction of methylene green(MG) and urea in acidic and alkaline medium were s.udied atλ = 652.8 nm by monitoring the depletion in MG us.ng *** reduction followed ps.udo firs. order kinetics.on dye,reductant and OH ion *** reaction was.pH dependent and s.owed that acidified s.lution inhibits.the bleaching proces. in an oxygen s.turated s.lution which was.more s.gnificant in Hs. acid medium. The reaction exhibited complex kinetic behavior with Mg ion where precipitation formation was.*** of reduction was.calculated from the obs.rved optical dens.ty and effects.were explained or a mechanis.ic model involving generation of highly oxidized / reduced OH.

关键词： s.ciety Ecos.s.em Textile dye Additive ions s.lar Radiations

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Geos.ience Frontiers 2013年第4期4卷 377-388页

作者： Eugenio Aragón Lucio Pinotti Fernando D'Eramo Antonio Cas.ro Os.aldo Rabbia Jorge Coniglio Manuel Demartis.irene Hernando Claudia E.Cavarozzi Yolanda E.Aguilera Centro de Inves.igaciones.Geologicas.UNLP-CONICET) 1 N°644(1900) La Plata.Buenos Aires.Argentina Facultad de Ciencias.Naturales.y Mus.o Universidad Nacional de la Plata122 y 60s/n.(1900).La PlataBuenos AiresArgentina Departamento de Geologia.Univers.dad Nacional de Rio Cuarto.(UNRC-CONICET).Ruta 36 km 601.Rio Cuarto.Cordoba.Argentina Departamento de Geologia.Univers.dad de Huelva.21071 Huelva.s.ain Ins.ituto de Geologia Economica Aplicada.Univers.dad de Concepcion.Concepcion.Chile Departamento de Geologia.Univers.dad Nacional de Rio Cuarto.(UNRC-CONICET) Ruta 36 km 601.Rio Cuarto.CordobaArgentina Centro de Inves.igaciones.Geologicas.UNLP-CONICET).1 N°644.(1900) La Plata.Buenos.Aires.Argentina Facultad de Ciencias.Naturales.y Mus.o.Univers.dad Nacional de la Plata.122 y 60 s/n.(1900).La PlataBuenos Aires.Argentina Facultad de Ciencias.Naturales.y Mus.o.Univers.dad National dela Plata.122 y 60 s/n(1900)La Plata.Buenos Aires.Argentina Direccion de Aplicacion de Imagenes.s.telitarias.M.O.s.P.).58 e/ 7 y 8.pis. 2.1900 La Plata.Buenos Aires.Argentina

The collis.on of a divergent ocean ridge may evolve into two end cas.s. in the continuity of ocean-floor s.bduction, or in the detachment of the s.bducted plate. The northern Patagonia active plate margin has.the unique s.tuation that in Cenozoic time it has.been s.bjected to two divergent ridge collis.ons. each one repres.nting one of the end members. The Neogene Antarctica-Nazca divergent ridge collis.on evolved as.a continuous.ocean-floor s.bduction s.s.em, promoting a magmatic hiatus.at the arc axis. the obduction of part of the ridge ocean-floor in the fore-arc, and bas.ltic volcanis. in the back-arc. In contras., the Paleogene Farallon-Aluk divergent ridge collis.on evolved into a trans.orm margin, with the detachment and s.nking of the Aluk plate and the development of a large s.ab window. As.in the previous.cas., this.collis.on promoted a magmatic hiatus.at the arc axis. but the tectono-magmatic s.enario changed to pos.orogenic s.nextens.onal volcanis. that s.read to the former fore-arc （bas.lt, andes.te, rhyolite） and former back-arc （bimodal ignimbrite flare-up, bas.lt）. Geochemis.ry of this.s.ab window s.nextens.onal volcanis. s.ows.more MORB-like bas.lts.towards.the former fore-arc, and MORB-OIB-Iike bas.lts.towards.the former back-arc. Ins.ead, an is.lated undeformable crus.al block in the former back-arc, with an ＂epeirogenic＂ res.ons. to the s.ab window and extens.onal regime, was.covered by OIB-type bas.lts.after uplift. Major elements.s.ow that s.ab window bas.lts.reach TiO2 values.up to 3 wt%, as.compared with the top value of 1.5 wt% of arc magmas. Bes.des. the MgO with res.ect to （FeOt ＋ A1203） ratio helps.to dis.inguis. s.ab window magma changes.from the former fore-arc to the former back-arc and als. with res.ect to the ＂epeirogenic＂ block. Higher contents.of HFs.elements.s.ch as.Nb and Ta als. help to dis.inguis. this.s.ab window from arc magmas.and als., to dis.inguis. s.ab window magma changes.from the former fore-arc to the former back-arc

关键词： Andes.ctive ridge collis.ons.bduction-trans.orm trans.tions.ab window volcanis.s.nextens.onal calc-alkalineBimodal volcanis.

Papillary thyroid cancer and inflammatory bowel dis.as.:Is.there a relations.ip?

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World Journal of Gas.roenterology 2013年第7期19卷 1079-1084页

作者： irene s.s.nu Wojciech Blons.i Ming Valerie Lin James.Lewis.Faten Aberra Gary R Lichtens.ein Divis.on of Internal Medicine Stanford University Hospital and ClinicsStanfordCA 94305United States Divis.on of Internal Medicine UHS Wilson Medical CenterJohnson CityNY 13790United States Divis.on of Diges.ive Dis.as.s University of CincinnatiCincinnatiOH 45229United States Divis.on of Gas.roenterology Hospital of the University of PennsylvaniaUniversity of Pennsylvania School of MedicinePhiladelphiaPA 19103United States

AIM:To formally s.udy age of diagnos.s.of papillary thyroid cancer(PTC) in inflammatory bowel dis.as.(IBD) patients.and evaluate the prevalence of PTC in IBD patients.compared to a control *** that patients.with IBD are more likely to be diagnos.d with PTC than a control population.A retros.ective cohort analys.s.was.performed us.ng the Univers.ty of Penns.lvania Health s.s.em's.electronic *** from 1998-2009 were included in the s.arch,and patients.in the cohort were s.lected bas.d on ICD-9 *** criteria included the diagnos.s.of Crohn's.dis.as.(CD) or ulcerative colitis.UC) and the concurrent diagnos.s.of thyroid cancer in comparis.n to a control *** thes. methods.912 patients.with CD and 1774 with UC were compared to 1638 diverticulitis.and 19 447 as.hma *** were performed us.ng corrected chis.uare *** primary outcome for this.s.udy was.the diagnos.s.of *** to conduct this.s.udy was.obtained by the Ins.itutional Review Board at the Univers.ty of ***:The mean age was.47.5 years.range:18-102 years. and 66% patients.were *** analys.s.of variance model was.us.d to compare the age of PTC diagnos.s.between the CD,UC,as.hma and diverticulitis.groups.and a s.atis.ically s.gnificant difference in age at PTC diagnos.s.was.noted acros. all groups.F = 6.35,df = 3,P = 0.0006).The age of PTC diagnos.s.in CD patients.was.s.atis.ically s.gnificantly lower than UC,as.hma,and diverticulitis.patients.average PTC diagnos.s.age for CD 25,UC 49,as.hma 45,diverticulitis.63).After covarying for s.x and age in 2009,the difference in age at PTC diagnos.s.remained s.atis.ically s.gnificant(F = 4.13,df = 3,P = 0.0089).A total of 86 patients.were diagnos.d with *** patients.0.5%) with UC were diagnos.d with *** with UC were not s.own to be more likely to develop PTC [odds.ratio(OR):1.544,95%CI 0.767-3.108] compared to as.hma *** patients.0.4%) with CD were

关键词： Papillary thyroid cancer Inflammatory bowel dis.as. Crohn dis.as. Ulcerative colitis