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The contribution of microorganisms and metazoans to mineral nutrition in bromeliads

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Journal of Plant Ecology 2016年第3期9卷 241-255页

作者： Céline Leroy Jean-François Carrias r.gis Céréghino bruno Corbara IrD UMR AMAP(botAnique et Modélisation de l’Architecture des Plantes et des végétations)Boulevard de la LirondeTA A‐51/PS2F‐34398 Montpellier Cedex 5France UMr Ecologie des Forêts de Guyane(AgroParisTech CIRADCNRSINRAUniversitéde GuyaneUniversitédes Antilles)Campus AgronomiqueBP 316F-97379 Kourou cedexFrance UniversitéClermont Auvergne UniversitéBlaise PascalBP 10448F-63000 Clermont-FerrandFrance CNrS UMR 6023Laboratoire Microorganismes:Génome et EnvironnementCampus Universitaire des Cézeaux1 impasse Amélie MuratTSA 60026 CS *** Aubière cedexFrance Universitéde Toulouse INPUPS EcoLab(Laboratoire Ecologie Fonctionnelle et Environnement)F-31062 ToulouseFrance CNrS EcoLab118 Route de NarbonneF-31062 ToulouseFrance

Aims One critical challenge for plants is to maintain an adequate nutrient supply under fluctuating environmental *** is particularly true for epiphytic species that have limited or no access to the pedosphere and often live in harsh *** have evolved key innovations such as epiphytism,water-absorbing leaf trichomes,tank habit and Crassulacean acid metabolism(CAM)photosynthesis that enable them to survive under various environmental *** encompass diverse ecological types that live on different substrates(they can be terrestrial,epilithic or epiphytic)and vary in their ability to retain water(they can be tank-forming or tankless)and photosynthetic pathway(i.e.C3 or CAM).In this review,we outline the nutritional modes and specializations that enable bromeliads to thrive in a wide range of nutrient-poor(mostly nitrogen-depleted)*** Findingsbromeliads have evolved a great diversity of morphologies and functional adaptations leading to the existence of numerous nutritional *** on species that have absorptive foliar trichomes,we review evidence that bromeliads have evolved multi-faceted nutritional strategies to respond to fluctuations in the supply of natural nitrogen(N).These plants have developed mutualistic associations with many different and functionally diverse terrestrial and aquatic microorganisms and metazoans that contribute substantially to their mineral nutrition and,thus,their fitness and *** and fungal microbiota-assisted N provisioning,protocarnivory,digestive mutualisms and myrmecotrophic pathways are the main strategies used by bromeliads to acquire *** combination of different nutritional pathways in bromeliads represents an important adaptation enabling them to exploit nutrient-poor ***,as has been shown for several other vascular plants,multiple partners are involved in nutrient acquisition indicating that there have been convergent adap

关键词： digestive mutualism insect-assisted nutrients leafδ15N multiple N sources myrmecotrophy

Geovisualization with immersive virtual environments in theory and practice

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International Journal of Digital Earth 2019年第2期12卷 123-136页

作者： Florian Hruby rainer ressl and Genghis de la Borbolla del Valle department of Geomatics National Commission for the Knowledge and Use of Biodiversity(CONABIO)Mexico CityMexico

Virtual reality(Vr)is a frequently emphasized issue on the Digital Earth(de)*** current de research is more engaged in the technical aspects of Vr applications,this paper focuses on what is possible with immersive virtual environments(IVE)from the user’s *** a brief discussion of spatial presence and embodiment in the context of IVE,both concepts will be merged into a geovisualization immersion pipeline(GIP)as a framework with which to systematically link technical and cognitive aspects of *** will then analyze the general criteria that must be met by IVE in order to facilitate the experience of spatial *** these criteria to the special requirements of geospatial data,a definition of geovisualization immersive virtual environments(GeoIVE)is ***,the theoretical considerations of this paper are set into practice,using a GeoIVE of a coral reef ecosystem as an *** we shall see,while gis do not provide data models or data compatibility for direct visualization of GeoIVE on Vr output devices,game engines can serve as middleware to fill this gap.

关键词： Digital Earth geovisualization virtual reality immersive virtual environments spatial presence

Polypeptide analysis for nanopore-based protein identification

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Nano research 2022年第11期15卷 9831-9842页

作者： Mazdak Afshar Bakshloo Safia Yahiaoui Fabien Piguet Manuela Pastoriza-Gallego r.gis Daniel Jérôme Mathé John J.Kasianowicz Abdelghani Oukhaled CY Cergy Paris Université CNRSLAMBE95000CergyFrance UniversitéParis-Saclay Univ EvryCNRSLAMBE91025Evry-CourcouronnesFrance University of South Florida Dept.of PhysicsTampaFL 33620USA Freiburg Institute for Advanced Studies Universität FreiburgFreiburg 79104Germany

Presently,proteins are identified by cleaving them with proteases,measuring the mass to charge ratio of the fragments with a mass spectrometer,and matching the fragments to segments within known proteins in *** earlier demonstrated that a nanometer-scale pore formed by aerolysin(AeL)can discriminate between,and therefore identify,three similar size proteins from their trypsin-cleaved polypeptide *** this nanopore-protease method,the protein’s identity is instead determined from characteristic ionic current blockade patterns caused by the polypeptide fragments that enter the *** results also suggested that not all of the theoretically expected cleavage products partition into the *** better understand the mechanism by which polypeptide fragments are captured,and how different polypeptides reduce the pore’s ionic current,we studied the effects of 11 identical length polypeptides with different net charges and charge *** show that under certain experimental conditions,negative,positive,and neutral polypeptides are driven into the AeL pore by the same applied voltage *** capture rate and dwell time of polypeptides in the pore depend strongly on the ionic strength,the magnitude of the applied voltage,and the net charge and charge distribution of the *** dwell time distribution depends nonmonotonically on the applied voltage(regardless of the polymer’s net charge),and its maximum value depends on the polypeptide net charge and charge *** maximum dwell time for different polypeptides does not occur at the same applied voltage amplitude,which conceivably might complicate the detection and discrimination of some polypeptide *** additional experiments,computer simulations,and artificial intelligence research are needed to better understand how to optimize the partitioning of enzymatically cleaved fragments into the AeL nanopore,the method is still capable of accurately identifying

关键词： protein identification nanopores trypsin enzymatic degradation

degradable magnesium-hydroxyapatite interpenetrating phase composites processed by current assisted metal infiltration in additive-manufactured porous preforms

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Journal of Magnesium and Alloys 2022年第12期10卷 3641-3656页

作者： Mariano Casas-Luna Edgar B.Montufar Norbert Hort Sebastian Díaz-de-la-Torre JoséClaudio Méndez-García Lucie Vištejnová Adam brínek AlešDanhel Karel Dvorak Jozef Kaiser ladislav Celko Central European Institute of Technology Brno University of TechnologyPurkynova 123Brno 61200Czech Republic Institute of Metallic Biomaterials Helmholtz-Zentrum HereonMax-Planck-Straße 1Geesthacht 21502Germany Institute of Product and Process Innovation Leuphana University LüneburgUniversitätsallee 1Lüneburg 21335Germany Centro de Investigación e Innovación Tecnológica Instituto Politécnico NacionalCerrada de Cecati s/nMexico City 02250Mexico Biomedical Center Faculty of Medicine in PilsenCharles UniversityAlej Svobody 1655/76Plzen 32300Czech Republic Institute of Biophysics of the Czech Academy of Sciences Královopolská135Brno 61265Czech Republic Faculty of Civil Engineering Brno University of TechnologyPurkynova 139Brno 61200Czech Republic

This work explores ceramic additive manufacturing in combination with liquid metal infiltration for the production of degradable interpenetrating phase magnesium/hydroxyapatite(Mg/HA) composites. Material extrusion additive manufacturing was used to produce stoichiometric,and calcium deficient HA preforms with a well-controlled open pore network, allowing the customization of the topological relationship of the composite. Pure Mg and two different Mg alloys were used to infiltrate the preforms by means of an advanced liquid infiltration method inspired by spark plasma sintering, using a novel die design to avoid the structural collapse of the preform. Complete infiltration was achieved in 8 min, including the time for the Mg melting. The short processing time enabled to restrict the decomposition of HA due to the reducing capacity of liquid Mg. The pure Mg-base composites showed compressive yield strength above pure Mg in cast state. Mg alloy-based composites did not show higher strength than the bare alloys due to grain coarsening, but showed similar mechanical properties than other Mg/HA composites that have significantly higher fraction of metallic phase. The composites showed faster degradation rate under simulated body conditions than the bare metallic component due to the formation of galvanic pairs at microstructural level. Mg dissolved preferentially over HA leaving behind a scaffold after a prolonged degradation period. In turn, the fast production of soluble degradation products caused cell metabolic changes after 24 h of culture with not-diluted material extracts. The topological optimization and reduction of the degradation rate are the topics for future research.

关键词： Interpenetrating phase composite Biodegradable metal Topological relationship Direct ink writing Metal infiltration Computed aided design

A local spatial decision support system for developing countries based on MCA,fuzzy sets and OWA–case study of a municipality in Cuba

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Geo-Spatial Information Science 2013年第2期16卷 120-129页

作者： ricardo deLGADO TELLEZ ZHONG Ershun ZUHU Yang Arisleydis PEÑA de la CrUZ Graduate University of Chinese Academy of Sciences No.A19Yuquan RoadBeijing 100049China State Key laboratory of resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchCASNo.A11Datun RoadBeijing 100101China International Business Division SuperMap Software Co.LtdNo.A10Jiuxianqiao North RoadBeijing 100015China department of Applied Meteorology Cuban Institute of MeteorologyHavana 95100Cuba

This paper presents a Spatial decision Support System for local governments of developing *** allows municipality government,enterprises,scientific community and civil society to address decision problems using *** framework is supported by four modules of information technologies:Environmental decision Support Database,Data Manipulation,decision Support,and Mapping.A case study is presented covering the implementation of this framework in one municipality of *** example of land suitability planning for coconut crops is used to evaluate the system performance and *** show local municipalities are able to use this framework to solve local decision problems using state of the art decision making even with low infrastructure development.

关键词： gis Spatial decision Support System MCA OWA developing countries

Fractures of Patella: Prospective Analysis of a Series of 51 Cases

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Open Journal of Orthopedics 2024年第11期14卷 535-546页

作者： Pierre Germain Ochou Jr Adélaïde Aya Natacha Kouassi Achié Jean r.gis Akobe Zolopegué Marcel Soro Ibrahim Soumahoro Koffi Léopold Krah Michel Kodo Surgical department Regional Hospital of San-Pedro San-Pedro Ivoiry Coast Orthopeadics Traumatology Department University Hospital of Bouak (Alassane Ouattara University) Bouak Ivoiry Coast

Introduction: The patella is a key component of the knee’s extensor system. Fractures of the patella can be treated using a variety of methods. The objective of this study was to describe the epidemiological, anatomical-clinical, therapeutic and evolutionary aspects. Methods: This was a prospective, observational, analytic study conducted from January 2018 to december 2021. It concerned all patients over 15 years of age treated surgically for a patella fracture. The variables to be studied were epidemiological, anatomo-clinical, therapeutic and evolutionary. Statistical analysis was performed using the Chi-square test and Fisher’s exact test. results: It concerned 51 cases. There were 39 men and 12 women. The average age was 35.13 years. The fracture was caused in 78.5% of cases by a road traffic accident. The main fracture was transverse (49.1%). Tension band technique predominated (92.1%). Complications included superficial suppuration (n = 7) and irritation of the material (n = 7). Mean time to consolidation was 66.39 days. Bösman scores were Excellent (n = 23;45.10%). Some patients presented osteoarthritic knee symptoms (n = 14;27.45%), and no pseudarthrosis. Conclusion: Patella fractures are rare. Surgical treatment gives good results, and the choice of method depends essentially on the anatomo-clinical characteristics of the fracture. Kinesitherapy is an essential and important weapon in functional recovery.

关键词： Patella Fracture Haubanage Patellectomy Kinesitherapy

Peri-Operative Morbidity and Mortality of Elderly Patients in Traumatology-Orthopedics in Bouaké

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Open Journal of Orthopedics 2024年第11期14卷 524-534页

作者： Aya Adélaïde Natacha Kouassi Achié Jean-r.gis Akobe Loukou Blaise Yao Kouamé Innocent M’bra Zolopégué Marcel Soro Ibrahim Soumahoro Koffi Léopold Krah Michel Kodo department of Trauma and Orthopaedics Bouak Teaching Hospital Bouak Cte dIvoire Surgery department Alassane OUATTARA University Bouak Cte dIvoire

Introduction: Elderly subjects have physiological and clinical characteristics that make surgical management more complex and have a major impact on their prognosis. The primary objective of this study was to assess peri-operative hospital morbidity and mortality in the elderly. Secondary objectives were to identify factors predictive of death. Methods: This was a retrospective observational descriptive and analytical study carried out over 02 years, based on hospitalized patient records. It concerned patients aged 65 or over who had undergone surgery or for whom an indication for surgery had been given, all pathologies included. A total of 138 files were collected. The mean age was 74.15 years. Diabetes (n = 52;37.68%) and arterial hypertension (n = 38;27.54%) were the most common comorbidities. The reasons for hospitalization were mostly degenerative (n = 56;40.58%) and traumatic (n = 49;35.51%) pathologies. Preoperative delay, intraoperative and postoperative complications, hospital stay, evolution (mode of discharge), time of occurrence and presumed cause of death were studied. Univariate (p results: The mean preoperative delay was 5.53 days (1 - 23). Intraoperative complications were mainly hemodynamic instability (n = 26, 18.8%). Postoperatively, the main complications were anemia (n = 62;48.44%) and glycemic imbalance (n = 28;21.86%). Average hospital stay was 13.4 days. Age (>75 years), the existence of comorbidities, degenerative pathologies, ASA score > 2, delay in treatment > 3 days, the occurrence of complications and the blood transfusion requirement were the independent predictors of the occurrence of death in the multifactorial analysis. Conclusion: Peri-operative morbidity in the elderly was influenced by age (>75 years), the existence of comorbidities, degenerative pathologies, ASA score > 2, time to treatment > 3 days, the occurrence of complications and the blood transfusion requirement.

关键词： Comorbidity Elderly Patient Mortality Surgery

Clustering of prostate cancer healthcare pathways in the French National Healthcare database

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Cancer Innovation 2023年第1期2卷 52-64页

作者： roméo Baulain Jérémy Jové Dunia Sakr Marine Gross‐Goupil Magali rouyer Marius Puel Patrick Blin Cécile Droz‐Perroteau r.gis lassalle Nicolas H.Thurin École nationale de la statistique et de l'administrationéconomique Paris(ENSAE) Institut Polytechnique ParisPalaiseauFrance Univ.Bordeaux INSERM CIC‐P 1401Bordeaux PharmacoEpiBordeauxFrance Medical Oncology Hôpital Saint AndréCHU de BordeauxBordeauxFrance

Background:Healthcare pathways of patients with prostate cancer are heterogeneous and complex to apprehend using traditional descriptive *** and visualization methods can enhance their ***:Patients with prostate cancer in 2014 were identified in the French National Healthcare database(Système National des Données de Santé—SNDS)and their data were extracted with up to 5 years of history and 4 years of follow‐***‐one‐specific encounters constitutive of prostate cancer management were synthesized into four macro‐variables using a clustering *** values over patient follow‐ups constituted healthcare *** matching was applied to calculate distances between *** around medoids was then used to define consistent groups across four exclusive cohorts of incident prostate cancer patients:Hormone‐sensitive(HSPC),metastatic hormone‐sensitive(mHSPC),castration‐resistant(CrPC),and metastatic castration‐resistant(mCrPC).Index plots were used to represent pathways ***:The repartition of macro‐variables values—surveillance,local treatment,androgenic deprivation,and advanced treatment—appeared to be consistent with prostate cancer *** to five clusters of healthcare pathways were observed in each of the different cohorts,corresponding for most of them to relevant clinical patterns,although some heterogeneity *** instance,clustering allowed to distinguish patients undergoing active surveillance,or treated according to cancer progression risk in HSPC,and patients receiving treatment for potentially curative or palliative purposes in mHSPC and ***:Visualization methods combined with a clustering approach enabled the identification of clinically relevant patterns of prostate cancer *** of these care pathways is an essential element for the comprehension and the robust assessment of healthcare technology effectiveness.

关键词： prostate cancer healthcare pathway clustering machine learning SNDS

A study on wildfire impacts on greenhouse gas emissions and regional air quality in South of Orléans,France

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Journal of Environmental Sciences 2024年第1期135卷 521-533页

作者： Chaoyang Xue gisèle Krysztofiak Yangang ren Min Cai Patrick Mercier Frédéric Le Fur Corinne robin Benoit Grosselin Véronique Daele Max rMcGillen Yujing Mu Valéry Catoire Abdelwahid Mellouki laboratoire de Physique et Chimie de l’Environnement et de l’Espace(LPC2E) CNRS–UniversitéOrléans–CNES(UMR 7328)Orléans Cedex 245071France Institut de Combustion AérothermiqueRéactivitéEnvironnement(ICARE)CNRSOrléans Cedex 245071France research Centre for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China Lig’Air-Association de surveillance de la qualitéde l’air en région Centre-Val de Loire Saint-Cyr-en-Val 45590France Mohammed V University RabatMorocco

Wildfire events are increasing globally which may be partly associated with climate change,resulting in significant adverse impacts on local,regional air quality and global *** September 2020,a small wildfire(burned area:36.3 ha)event occurred in Souesmes(Loiret-Cher,Sologne,France),and its plume spread out over 200 km on the following day as observed by the MODIS *** on measurements at a suburban site(~50 km northwest of the fire location)in Orléans and backward trajectory analysis,young wildfire plumes were *** increases in gaseous pollutants(CO,CH_(4),N_(2)O,VOCs,etc.)and particles(including black carbon)were found within the wildfire plumes,leading to a reduced air *** factors,defined as EF(X)=ΔX/ΔCO(where,X represents the target species),of various trace gases and black carbon within the young wildfire plumes were determined accordingly and compared with previous *** in the ambient ions(such as ammonium,sulfate,nitrate,chloride,and nitrite in the particle-and gasphase)and aerosol properties(e.g.,aerosol water content,aerosol p H)were also quantified and ***,we estimated the total carbon and climate-related species(e.g.,CO_(2),CH_(4),N_(2)O,and BC)emissions and compared them with fire emission *** biomass burning emission inventories have uncertainties in estimating small fire burned areas and *** instance,we found that the Global Fire Assimilation System(GFAS)may underestimate emissions(e.g.,CO)of this small wildfire while other inventories(GFED and FINN)showed significant *** that it is the first time to record wildfire plumes in this region,related atmospheric implications are presented and discussed.

关键词： Wildfire Air quality Emission factor Emission inventory VOLTAIrE supersite