检索结果-南通市图书馆

Journal of Environmental Sciences 2019年第12期31卷 120-130页

作者： Golam MIslam peter vi Kimberley Ann Gilbride Department of Chemistry and Biology Ryerson University350 Victoria StreetTorontoOntario M5B 2K3Canada Ryerson Urban Water Ryerson University350 Victoria StreetTorontoOntario M5B 2K3Canada

The abundance of ammonia-oxidizing bacteria and archaea and their amo A genes from the aerobic activated sludge tanks,recycled sludge and anaerobic digesters of a full-scale wastewater treatment plant(WWTP)was *** chain reaction and denaturing gradient gel electrophoresis were used to generate diversity profiles,which showed that each population had a consistent profile although the abundance of individual members *** the aerobic tanks,the ammonia-oxidizing bacterial(AOB)population was more than 350 times more abundant than the ammonia-oxidizing archaeal(AOA)population,however in the digesters,the AOA population was more than 10 times more *** the activity of the amo A gene expression of the two populations using RT-PCR also showed that the AOA amo A gene was more active in the digesters than in the activated sludge *** batch reactors and dd PCR,amo A activity could be measured and it was found that when the AOB amo A activity was inhibited in the anoxic reactors,the expression of the AOA amo A gene increased *** suggests that these two populations may have a cooperative relationship for the oxidation of ammonia.

关键词： Wastewater treatment Topic:Ammonia-oxidation Ammonia-oxidizing bacteria(AOB) Ammonia-oxidizing archaea(AOA) PCR Digital droplet polymerase chain reaction(ddPCR)

Full-spectrum Bi@SrTiO_(3) for bi-directional promotion effects on photocatalytic redox reaction:Insight into intermediates and mechanism

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第5期42卷 917-929,I0004页

作者： Bin Liu Nanhao Zhou Jun Liu Xinglei Wang peter K.J.Robertson Xiaoyuan Chen Chao Chen Jianmin Luo Chuanyi Wang School of Chemistry and Civil Engineering Shaoguan UniversityShaoguan512005China Chengdu Customs Technology Center Chengdu610041China Key Laboratory of Pollutant Chemistry and Environmental Treatment College of Chemistry and Environmental ScienceYili Normal UniversityYining835000China School of Chemistry and Chemical Engineering Queen's University BelfastStranmillis RoadBelfastBT95AGUnited Kingdom Guangzhou Institute of Industrial Intelligence(GIII) Guangzhou511400China

The development of full-spectrum photocatalysts active in the near-infrared(NIR)region has gained increasing attention for deleterious pollutant *** integration of plasmonic metals with semico nductors is an effective way to widen the light re sponse range of photocatalysts due to the strong light absorption and fast plasmonic energy transfer of the localized surface plasmon resonance(LSPR).In this work,the full-spectrum responsive Bi@SrTiO_(3) was prepared via facile solvothermal chemical *** optimal Bi@SrTiO_(3) achieves exceptional photocatalytic Cr(vi)reduction efficiency and tetracycline degradation,realizing bi-directional promotion effects on redox *** to density functional theory(DFT)simulations,the extraordinary photocatalytic performance is attributed to the tunable builtin electric field(IEF)of the Ohmic *** favorable adaptability in real water and high stability of BSTO-25 were proved by experime ntal *** the po ssible photocatalytic mechanism was proposed based on theoretical calculation and experimental ***,the non-toxicity of the BSTO-25 was evaluated by *** cultivation,which further proves the feasibility of treating wastewater with *** work provides a new perspective on constructing full-spectrum-driven photocatalysts for applications dealing with environmental remediation.

关键词： Full-spectrum photocatalysts Localized surface plasmon resonance Ohmic contact Cr(Ⅵ)reduction Antibiotic degradation Rare earths

糖尿病患者足溃疡减压指南(2023年更新版)——《国际糖尿病足工作组:糖尿病相关的足病预防与管理指南(2023)》的一部分

在线全文

学校读者我要写书评

暂无评论

感染、炎症、修复 2024年第1期25卷 1-22页

作者： Sicco A.Bus David G.Armstrong Ryan T.Crews Catherine Gooday Gustav Jarl Klaus Kirketerp-Moller vijay viswanathan peter A.Lazzarini on behalf of the International Working Group on the Diabetic Foot 陈燕刘斌张晓诗邓武权(译) 王爱萍许樟荣(审校) Amsterdam UMC University of AmsterdamDepartment of Rehabilitation MedicineAmsterdamthe Netherlands Amsterdam Movement Sciences program Rehabilitation&DevelopmentAmsterdamthe Netherlands Southwestern Academic Limb Salvage Alliance(SALSA) Department of SurgeryKeck School of Medicine of University of Southern California(USC)Los AngelesCaliforniaUSA Dr.William M.Scholl College of Podiatric Medicine's Center for Lower Extremity Ambulatory Research(CLEAR)at Rosalind Franklin University North ChicagoIllinoisUSA Elsie Bertram Diabetes Centre Norfolk and Norwich University HospitalsNorwichUK Department of Prosthetics and Orthotics Faculty of Medicine and HealthÖrebro UniversityÖrebroSweden University Health Care Research Center Faculty of Medicine and HealthÖrebro UniversityÖrebroSweden Copenhagen Wound Healing Center Bispebjerg University HospitalCopenhagenDenmark Steno Diabetes Center CopenhagenDenmark MV Hospital for Diabetes ChennaiIndia School of Public Health and Social Work Queensland University of TechnologyBrisbaneAustralia Allied Health Research Collaborative The Prince Charles HospitalBrisbaneAustralia 不详重庆大学附属中心医院重庆400014 东部战区空军医院糖尿病足中心江苏南京210002 战略支援部队特色医学中心北京100101

减轻组织的机械性压力在治愈糖尿病相关的足溃疡所需的多种干预措施中最为重要。本文是2023年国际糖尿病足工作组(IWGDF)发布的减压治疗促进糖尿病相关的足溃疡愈合的循证指南,也是对2019年IWGDF指南的更新。我们遵循推荐、评估、发展... 详细信息

减轻组织的机械性压力在治愈糖尿病相关的足溃疡所需的多种干预措施中最为重要。本文是2023年国际糖尿病足工作组(IWGDF)发布的减压治疗促进糖尿病相关的足溃疡愈合的循证指南,也是对2019年IWGDF指南的更新。我们遵循推荐、评估、发展和评价分级(GRADE)方法学,以患者-干预-比较-结局(patient-intervention-control-outcome,PICO)模式设计临床问题和重要结果,进行系统评价和Meta分析,制定评判表汇总,为每个问题编写推荐和理由。每项推荐都是基于系统综述中发现的证据,在无证据情况下则采用专家意见,以及对判断项目的GRADE等级总结进行仔细权衡,包括可预期和不可预期的影响、证据的确定性、患者价值、所需资源、成本效益、公平性、可行性和可接受性。为了治愈糖尿病患者神经性前足底或中足底溃疡,要使用不可拆卸的齐膝高减压装置作为首选减压干预措施。如果患者存在对不可拆卸减压装置的禁忌证或不能耐受,考虑使用可拆卸齐膝(或踝)高减压装置作为减压干预措施的第二选择。如果无可用的减压装置,考虑使用合适的鞋具结合毡制泡沫作为减压干预措施的第三选择。如果这种非手术减压治疗不能治愈前足底溃疡,可以考虑跟腱延长术、跖骨头切除术、关节置换术或跖骨截骨术。为了治疗继发于屈趾畸形的神经性足底或小趾远端溃疡,可行趾屈肌腱切开术。为了促进后足、非足底或并发感染或缺血的溃疡的愈合,提出了进一步的推荐。所有推荐都已在减压临床路径中进行了总结,以帮助促进本指南在临床实践中的实施。这些减压推荐将帮助医务人员为糖尿病相关的足溃疡患者提供最佳的治疗和预后,降低患者感染、住院和截肢的风险。

关键词：糖尿病足溃疡减压减压装置指南国际糖尿病足工作组

Influence of MBBR carrier geometrical properties and biofilm thickness restraint on biofilm properties,effluent particle size distribution,settling velocity distribution,and settling behaviour

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2022年第12期34卷 138-149页

作者： Raheleh Arabgol peter A.Vanrolleghem Robert Delatolla Department of Civil Engineering University of Ottawa161 Louis PasteurK1N 6N5 ONCanada ModelEAU Département de génie civil et de génie des eauxUniversitéLaval1065 av.de la MédecineQuébecCanada

The relatively poor settling characteristics of particles produced in moving bed biofilm reactor(MBBR)outline the importance of developing a fundamental understanding of the characterization and settleability of MBBR-produced *** influence of carrier geometric properties and different levels of biofilm thickness on biofilm characteristics,solids production,particle size distribution(PSD),and particle settling velocity distribution(PSVD)is evaluated in this *** analytical vi CAs method is applied to the MBBR effluent to assess the distribution of particle settling *** method is combined with microscopy imaging to relate particle size distribution to settling *** conventionally loaded MBBR systems are studied at a similar loading rate of 6.0 g/(m^(2)·day)and with different carrier *** AnoxK^(TM)K5 carrier,a commonly used carrier,is compared to so-called thickness-restraint carriers,AnoxK^(TM)Z-carriers that are newly designed carriers to limit the biofilm ***,two levels of biofilm thickness,200μm and 400μm,are studied using AnoxK^(TM)Z-200 and Z-400 *** analysis confirms that K5 carriers demonstrated a significantly different biofilm mass,thickness,and density,in addition to distinct trends in PSD and PSVD in comparison with ***,in comparison of thickness-restraint carriers,Z-200 carrier results did not vary significantly compared to the Z-400 *** K5 carriers showed the lowest production of suspended solids(0.7±0.3 gTSS/day),thickest biofilm(281.1±8.7μm)and lowest biofilm density(65.0±1.5 kg/m^(3)).The K5 effluent solids also showed enhanced settling behaviour,consisting of larger particles with faster settling velocities.

关键词： MBBR Particle size distribution(PSD) Particle settling velocity distribution(PSVD) Settling behaviour viCAs z-carriers

Magneto-polaron induced intersubband optical transition in a wide band gap Ⅱ–Ⅵ semiconductor quantum dot

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Semiconductors 2015年第3期36卷 1-6页

作者： P.Christina Lily Jasmine A.John peter Department of Physics N.M.S.Sermathai Vasan College for Women Department of Physics Government Arts College

Effects of LO-phonon contribution on the electronic and the optical properties are investigated in a ***.2 Se/ZnSe quantum dot in the presence of magnetic field strength. The magneto-polaron induced hydro- genic binding energy as a function of dot radius in the wide band gap quantum dot is calculated. The oscilla- tor strength and the spontaneous lifetime are studied taking into account the spatial confinement, magnetic field strength and the phonon contribution. Numerical calculations are carried out using variational formulism within the single band effective mass approximation. The optical properties are computed with the compact density matrix method. The magneto-polaron induced optical gain as a function of photon energy is observed. The results show that the optical telecommunication wavelength in the fiber optic communications can be achieved using CdSe/ZnSe semiconductors and it can be tuned with the proper applications of external perturbations.

关键词： electronic states optical absorption intersubband transition quantum dot

Calcium at the Cell Wall-Cytoplast Interface

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2010年第2期52卷 147-160页

作者： peter K.Hepler Lawrence J.Winship Department of Biology University of MassachusettsAmherstMA 01003USA School of Natural Science Hampshire CollegeAmherstMA 01002USA

Attention is given to the role of Ca^2＋ at the interface between the cell wall and the cytoplast, especially as seen in pollen tubes. While the cytoplasm directs the synthesis and deposition of the wall, it is less well appreciated that the wall exerts considerable self control and influences activities of the cytoplasm. Ca^2＋ participates as a crucial factor in this two way communication. In the cytoplasm, a [Ca^2＋] above 0.1 μM, regulates myriad processes, including secretion of cell wall components. In the cell wall Ca^2＋ , at 10μM to 10 mM, binds negative charges on pectins and imparts structural rigidity to the wall. The plasma membrane occupies a pivotal position between these two compartments, where selective channels regulate influx of Ca^2＋ , and specific carriers pump the ion back into the wall. In addition we draw attention to different factors, which either respond to the wall or are present in the wall, and usually generate elevated[Ca^2＋ ] in the cytoplasm. These factors include：（i） stretch activated channels; （ii） calmodulin; （iii） annexins; （iv） wall associated kinases; （v） oligogalacturonides; and （vi） extracellular adenosine 5＇-triphosphate. Together they provide evidence for a rich and multifaceted system of communication between the cytoplast and cell wall, with Ca^2＋ as a carrier of information.

关键词： Calcium at the Cell Wall-Cytoplast Interface CNGC

Reading across Workplace Learning Research to Build Dialogue

在线全文

学校读者我要写书评

暂无评论

Frontiers of Education in China 2010年第3期5卷 365-381页

作者： peter H.Sawchuk Department of Sociology&Equity Studies in Education Ontario Institute for Studies in Education of the University of TorontoToronto M5S 1V6Canada

The field of workplace learning scholarship in Western countries is reviewed. First, the emergence of workplace learning scholarship is discussed historically for its relation to the emergence and ongoing development of capitalism beginning from early thought on markets and productivity, 20th century scientific management, industrialism and post-industrialism theses, and finally contemporary conceptual and disciplinary expansion and the conditions of globalization under late capitalism. Following this, six thematic clusters of research are discussed in relation to key scholars, their primary contributions and the ways that each can, potentially, inform those working in other areas of workplace learning scholarship. These thematic clusters include the following: i. cognition, expertise, and the individual;ii. micro-interaction, cognition, and communication;iii. mediated practice and participation;iv. meaning, identity, and organization life;v. authority, conflict, and control;and vi. competitiveness and knowledge management. It is concluded that no single thematic cluster has established predominance, and that there is a strong tendency toward isolation or balkanization of research interests (thematically, nationally, linguistically, etc.) despite a variety of parallel and/or mutually informing interests.

关键词： workplace learning overview historical origins comparative conceptual approaches

More to it than meets the eye: a case report of incomitant esotropia in a child caused by a giant basilar aneurysm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Annals of Eye Science 2023年第4期8卷 1-5页

作者： Tianwei Ellen Zhou Carmen Parra Farinas Abhaya VKulkarni peter Dirks Leonardo RBrandão Prakash Muthusami Nasrin Najm-Tehrani Department of Ophthalmology and vision Sciences University of TorontoTorontoOntarioCanada Department of Diagnostic Imaging the Hospital for Sick ChildrenUniversity of TorontoTorontoOntarioCanada Department of Neurosurgery the Hospital for Sick ChildrenUniversity of TorontoTorontoOntarioCanada Division of Haematology/Oncology Department of Pediatricsthe Hospital for Sick ChildrenUniversity of TorontoTorontoOntarioCanada Dalla Lana School of Public Health University of TorontoTorontoOntarioCanada Department of Ophthalmology the Hospital for Sick ChildrenUniversity of TorontoTorontoOntarioCanada

Background:Esotropia is a common concern in pediatric ophthalmology *** most cases stem from strabismus,it is crucial for physicians to differentiate atypical features that might indicate underlying organic causes,such as vi nerve palsy,hinting at the presence of intracranial spaceoccupying *** the occurrence of cerebral aneurysms in children is rare,they can have severe *** Description:Here,we described an extremely rare case of giant basilar fusiform aneurysm measuring 4.0 cm×3.9 cm×3.9 cm in an otherwise healthy 8-year-old child,and analyzed its atypical features that suggested an intracranial *** further described an endovascular approach,performed by interventional radiologists,and discussed its advantages over the conventional *** patient continued to be followed by our multidisciplinary *** had a stable post-operative course and made an excellent recovery *** the 1-year follow-up,he was orthophoria with excellent vision and ***:To our knowledge,this is the first pediatric case in Canada where a giant intracranial aneurysm was treated *** salient red flags—progressive incomitant esotropia and diplopia,the presence of myopia(rather than hyperopia),nystagmus and abnormal saccadic movements—should be astutely recognized by clinicians as intracranial giant aneurysms carry a poor prognosis.A multidisciplinary approach is essential for the management of such cases.

关键词： Sixth nerve palsy incomitant esotropia giant basilar aneurysm interventional radiology case report

Estimating evapotranspiration from terrestrial groundwater-dependent ecosystems using Landsat images

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2011年第2期4卷 154-170页

作者： Xihua Yang peter L.Smith Tao Yu Hailiang Gao Department of Environment Climate Change and WaterPO Box 3720ParramattaNSW 2124SydneyAustralia Institute of Remote Sensing Application Chinese Academy of SciencesBeijingChina

Understanding and mitigating against the impact of groundwater extraction on groundwater-dependent ecosystems(GDE)requires information of evapotranspiration(ET)of these *** this pilot study,we tested two remotesensing methods,Surface Energy Balance Algorithms for Land(SEBAL)and Vegetation Index/Temperature Trapezoid(viTT),for ET estimation from terrestrial ***-temporal Landsat Thematic Mapper(TM)and Enhanced Thematic Mapper(ETM)images were used to derive vegetation indices and land surface temperatures for ET *** transfer model was used for atmospheric correction of the Landsat *** measurements were used to validate the remote sensing estimation of vi and surface *** methods have been implemented in a geographic information system(GIS)using automated scripts and ancillary GIS data for quality control *** of predicted ET by SEBAL to viTT model indicates relatively good agreement(R20.90)and promise for use in groundwater *** average ET from woodland GDEs within the zone of influence of the pumping stations is in general lower than similar woodlands outside of the pumping area,particularly in summer seasons which demonstrates that the pumping regime has an impact on those *** study also demonstrates that even a simple physical ET model can provide useful information for groundwater management,and more broadly other applications in hydrologic modelling and digital earth studies.

关键词： remote sensing evapotranspiration surface energy balance Landsat groundwater-dependent ecosystems digital earth,GIS

Influence of Pixel Quality, Land Cover, and Hydroclimatic Cycle on Moderate Resolution Imaging Spectroradiometer Inundation Monitoring Performance in the Pantanal, Brazil

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geoscience and Environment Protection 2023年第2期11卷 90-120页

作者： Sérgio Wagner Gripp da Silveira Ibraim Fantin-Cruz peter Zeilhofer Midwest Regional Unit National Institute for Space Research Cuiabá Brazil Department of Sanitary and Environmental Engineering Federal University of Mato Grosso Cuiabá Brazil Department of Geography Federal University of Mato Grosso Cuiabá Brazil

Moderate resolution imaging spectroradiometer (MODIS) time series (TS) have been widely applied for flood monitoring in large tropical wetlands. However, little systematic work is available on the influence of pixel quality, vegetation cover, and the annual hydroclimatic cycle on classification performance. In this study, this issue is examined based on a six-year, 250 m resolution MOD13Q1 TS underpinned by extensive in situ measurements. The most parsimonious logistic regression model was obtained for land surface water index (LSWI) and enhanced vegetation index (Evi). The inclusion of the 500 m MCD12Q1 land cover Type 2 product improves accuracy. Performance markedly decreases for subsets that include pixels with a vi quality assurance (QA) level poorer than 0110 and/or a pixel reliability (PR) of three. When a Savitzky-Golay filter was used for TS reconstitution, performance is slightly lower than those obtained in a classification of a vi QA 0001 or PR = 0 level strata;moreover, these have the advantage of gap-free flood monitoring. The overall accuracy (OA) of the PR = 0 subset is better for grasslands, and slightly lower for Savannah, and for woodland and forests. The average OA is highest for the dry season, intermediate for the rainy/flooded season, and lowest for the transitional seasons, when the wetland becomes flooded or dries. Comparisons of internal, k-fold, and external validations indicate that only external validation enables a realistic assessment of flood-mapping performance. The complete substitution of PR = 3 pixels by filled-in values is recommended for operational flood monitoring, and it is concluded that the use of the simplified PR metrics as filtering criteria for gap filling and smoothing is sufficient for flood monitoring in the Pantanal. Classification metrics vary more strongly as a function of the hydrological period than by vegetation cover. MOD13Q1 users should be aware that OA in forest stands during the transition seasons are, on

关键词： MODIS Classification Performance Flooding LSWI Evi Large Tropical Wetlands