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  1. Article ; Online: Prevalence and impact of Eustachian valve on the diagnosis of patent foramen ovale in patients ventilated for an acute respiratory distress syndrome.

    Sanchez, Florence / Goudelin, Marine / Evrard, Bruno / Vignon, Philippe

    Critical care (London, England)

    2023  Volume 27, Issue 1, Page(s) 392

    MeSH term(s) Humans ; Foramen Ovale, Patent/complications ; Foramen Ovale, Patent/epidemiology ; Prevalence ; Echocardiography, Transesophageal ; Vena Cava, Inferior/diagnostic imaging ; Respiratory Distress Syndrome/epidemiology ; Respiratory Distress Syndrome/therapy
    Language English
    Publishing date 2023-10-10
    Publishing country England
    Document type Letter
    ZDB-ID 2041406-7
    ISSN 1466-609X ; 1364-8535
    ISSN (online) 1466-609X
    ISSN 1364-8535
    DOI 10.1186/s13054-023-04670-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5517: Show issues Location:
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  2. Article ; Online: The Aortic Pulsatility Index: A New Sign of Severe Acute Aortic Regurgitation.

    Sanchez, Florence / Goudelin, Marine / Evrard, Bruno / Vignon, Philippe

    Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography

    2022  Volume 35, Issue 9, Page(s) 1006–1007

    MeSH term(s) Aorta/diagnostic imaging ; Aortic Valve Insufficiency/diagnostic imaging ; Blood Flow Velocity ; Humans
    Language English
    Publishing date 2022-04-27
    Publishing country United States
    Document type Letter
    ZDB-ID 1035622-8
    ISSN 1097-6795 ; 0894-7317
    ISSN (online) 1097-6795
    ISSN 0894-7317
    DOI 10.1016/j.echo.2022.04.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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    Zs.MG 55: Show issues

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  3. Article: Effect of Carbon Nanofiber Clustering on the Micromechanical Properties of a Cement Paste.

    Brown, Lesa / Stephens, Catherine S / Allison, Paul G / Sanchez, Florence

    Nanomaterials (Basel, Switzerland)

    2022  Volume 12, Issue 2

    Abstract: The use of carbon nanofibers (CNFs) in cement systems has received significant interest over the last decade due to their nanoscale reinforcing potential. However, despite many reports on the formation of localized CNF clusters, their effect on the ... ...

    Abstract The use of carbon nanofibers (CNFs) in cement systems has received significant interest over the last decade due to their nanoscale reinforcing potential. However, despite many reports on the formation of localized CNF clusters, their effect on the cement paste micromechanical properties and relation to the mechanical response at the macroscopic scale are still not fully understood. In this study, grid nanoindentation coupled with scanning electron microscopy and energy dispersive spectroscopy was used to determine the local elastic indentation modulus and hardness of a portland cement paste containing 0.2% CNFs with sub-micro and microscale CNF clusters. The presence of low stiffness and porous assemblage of phases (modulus of 15-25 GPa) was identified in the cement paste with CNFs and was attributed primarily to the interfacial zone surrounding the CNF clusters. The CNFs favored the formation of higher modulus C-S-H phases (>30 GPa) in the bulk paste at the expense of the lower stiffness C-S-H. Nanoindentation results combined with a microscale-macroscale upscaling homogenization method further revealed an elastic modulus of the CNF clusters in the range from 18 to 21 GPa, indicating that the CNF clusters acted as compliant inclusions relative to the cement paste.
    Language English
    Publishing date 2022-01-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano12020223
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  4. Article ; Online: First Characterization of

    Chomérat, Nicolas / Antajan, Elvire / Auby, Isabelle / Bilien, Gwenael / Carpentier, Liliane / Casamajor, Marie-Noëlle de / Ganthy, Florian / Hervé, Fabienne / Labadie, Magali / Méteigner, Claire / Paradis, Camille / Perrière-Rumèbe, Myriam / Sanchez, Florence / Séchet, Véronique / Amzil, Zouher

    Marine drugs

    2022  Volume 20, Issue 7

    Abstract: Blooms of the benthic toxic dinoflagellate ... ...

    Abstract Blooms of the benthic toxic dinoflagellate genus
    MeSH term(s) Atlantic Ocean ; Dinoflagellida ; Ecosystem ; Humans ; Mediterranean Sea ; Portugal
    Language English
    Publishing date 2022-07-18
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175190-0
    ISSN 1660-3397 ; 1660-3397
    ISSN (online) 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md20070461
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  5. Article: First Characterization of Ostreopsis cf. ovata (Dinophyceae) and Detection of Ovatoxins during a Multispecific and Toxic Ostreopsis Bloom on French Atlantic Coast

    Chomérat, Nicolas / Antajan, Elvire / Auby, Isabelle / Bilien, Gwenael / Carpentier, Liliane / Casamajor, Marie-Noëlle de / Ganthy, Florian / Hervé, Fabienne / Labadie, Magali / Méteigner, Claire / Paradis, Camille / Perrière-Rumèbe, Myriam / Sanchez, Florence / Séchet, Véronique / Amzil, Zouher

    Marine drugs. 2022 July 18, v. 20, no. 7

    2022  

    Abstract: Blooms of the benthic toxic dinoflagellate genus Ostreopsis have been recorded more frequently during the last two decades, particularly in warm temperate areas such as the Mediterranean Sea. The proliferation of Ostreopsis species may cause deleterious ... ...

    Abstract Blooms of the benthic toxic dinoflagellate genus Ostreopsis have been recorded more frequently during the last two decades, particularly in warm temperate areas such as the Mediterranean Sea. The proliferation of Ostreopsis species may cause deleterious effects on ecosystems and can impact human health through skin contact or aerosol inhalation. In the eastern Atlantic Ocean, the toxic O. cf. ovata has not yet been reported to the north of Portugal, and the only species present further north was O. cf. siamensis, for which the toxic risk is considered low. During summer blooms of unidentified Ostreopsis species on the French Basque coast (Atlantic) in 2020 and 2021, people suffered from irritations and respiratory disorders, and the number of analyzed cases reached 674 in 2021. In order to investigate the causes, sampling was carried out during summer 2021 to (i) taxonomically identify Ostreopsis species present using a molecular approach, (ii) isolate strains from the bloom and culture them, and (iii) characterize the presence of known toxins which may be involved. For the first time, this study reports the presence of both O. cf. siamensis and O. cf. ovata, for which the French Basque coast is a new upper distribution limit. Furthermore, the presence of ovatoxins a, b, c, and d in the environmental sample and in a cultivated strain in culture confirmed the toxic nature of the bloom and allowed identifying O. cf. ovata as the producer. The present data identify a new health risk in the area and highlight the extended distribution of some harmful dinoflagellates, presumably in relation to climate change.
    Keywords Dinophyceae ; aerosols ; breathing ; climate change ; coasts ; human health ; people ; risk ; summer ; toxicity ; Atlantic Ocean ; Mediterranean Sea ; Portugal
    Language English
    Dates of publication 2022-0718
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2175190-0
    ISSN 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md20070461
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Evaluating the fate of metals in air pollution control residues from coal-fired power plants.

    Thorneloe, Susan A / Kosson, David S / Sanchez, Florence / Garrabrants, Andrew C / Helms, Gregory

    Environmental science & technology

    2010  Volume 44, Issue 19, Page(s) 7351–7356

    Abstract: Changes in emissions control at U.S. coal-fired power plants will shift metals content from the flue gas to the air pollution control (APC) residues. To determine the potential fate of metals that are captured through use of enhanced APC practices, the ... ...

    Abstract Changes in emissions control at U.S. coal-fired power plants will shift metals content from the flue gas to the air pollution control (APC) residues. To determine the potential fate of metals that are captured through use of enhanced APC practices, the leaching behavior of 73 APC residues was characterized following the approach of the Leaching Environmental Assessment Framework. Materials were tested over pH conditions and liquid-solid ratios expected during management via land disposal or beneficial use. Leachate concentrations for most metals were highly variable over a range of coal rank, facility configurations, and APC residue types. Liquid-solid partitioning (equilibrium) as a function of pH showed significantly different leaching behavior for similar residue types and facility configurations. Within a facility, the leaching behavior of blended residues was shown to follow one of four characteristic patterns. Variability in metals leaching was greater than the variability in totals concentrations by several orders of magnitude, inferring that total content is not predictive of leaching behavior. The complex leaching behavior and lack of correlation to total contents indicates that release evaluation under likely field conditions is a better descriptor of environmental performance than totals content or linear partitioning approaches.
    MeSH term(s) Air Pollutants/chemistry ; Air Pollution/prevention & control ; Coal ; Metals/chemistry ; Power Plants ; United States
    Chemical Substances Air Pollutants ; Coal ; Metals
    Language English
    Publishing date 2010-10-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/es1016558
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Effect of experimentally induced reducing conditions on the mobility of arsenic from a mining soil.

    Chatain, Vincent / Sanchez, Florence / Bayard, Rémy / Moszkowicz, Pierre / Gourdon, Rémy

    Journal of hazardous materials

    2005  Volume 122, Issue 1-2, Page(s) 119–128

    Abstract: A method for estimating the release of contaminants from contaminated sites under reducing conditions is proposed. The ability of two chemical reducing agents, sodium ascorbate and sodium borohydride, to produce different redox environments in a gold ... ...

    Abstract A method for estimating the release of contaminants from contaminated sites under reducing conditions is proposed. The ability of two chemical reducing agents, sodium ascorbate and sodium borohydride, to produce different redox environments in a gold mining soil contaminated with arsenic was investigated. Liquid-solid partitioning experiments were carried out in the presence of each of the reducing agents at different pH conditions. Both the effect of varying concentrations of the reducing agent and the effect of varying pH in the presence of a constant concentration of the reducing agent were studied. Concentrations of sodium ascorbate ranging from 0.0075 to 0.046 mol L(-1) and concentrations of sodium borohydride ranging from 0.0075 to 0.075 mol L(-1) were examined. The addition of varying concentrations of sodium borohydride provided greater reducing conditions (ranging from -500 to +140 mV versus NHE) than that obtained using sodium ascorbate (ranging from -7 to +345 mV versus NHE). The solubilization of arsenic and iron was significantly increased by the addition of sodium ascorbate for all concentrations examined and pH tested, compared to that obtained under oxidizing conditions (as much as three orders of magnitude and four orders of magnitude, respectively, for the addition of 0.046 mol L(-1) of sodium ascorbate). In contrast, the alkaline and highly reduced soil conditions obtained with sodium borohydride lead to a lower effect on arsenic solubilization (as much as one order of magnitude for pH values between ca. 7 and 10 and no effect for pH values between ca. 10 and 12) and no effect on iron solubilization for all concentrations examined and pH tested. At similar ORP-pH conditions the results of extraction for arsenic and iron were different for the two reagents used.
    MeSH term(s) Arsenic/isolation & purification ; Ascorbic Acid/chemistry ; Borohydrides/chemistry ; Hazardous Waste/prevention & control ; Hydrogen-Ion Concentration ; Kinetics ; Mining ; Oxidation-Reduction ; Soil Pollutants/isolation & purification
    Chemical Substances Borohydrides ; Hazardous Waste ; Soil Pollutants ; sodium borohydride (87L0B9CPPA) ; Arsenic (N712M78A8G) ; Ascorbic Acid (PQ6CK8PD0R)
    Language English
    Publishing date 2005-06-30
    Publishing country Netherlands
    Document type Evaluation Studies ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2005.03.026
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  8. Article: Effect of indigenous bacterial activity on arsenic mobilization under anaerobic conditions.

    Chatain, Vincent / Bayard, Rémy / Sanchez, Florence / Moszkowicz, Pierre / Gourdon, Rémy

    Environment international

    2005  Volume 31, Issue 2, Page(s) 221–226

    Abstract: Batch biochemical leaching tests were carried out to investigate the mobility of arsenic from a contaminated soil collected from a French gold mining site. The specific objective of this research was to examine the effect of indigenous bacterial activity ...

    Abstract Batch biochemical leaching tests were carried out to investigate the mobility of arsenic from a contaminated soil collected from a French gold mining site. The specific objective of this research was to examine the effect of indigenous bacterial activity on arsenic mobilization under anaerobic conditions. In a first step, physical and chemical characterizations were performed to provide data concerning the liquid-solid partitioning and mobility of arsenic and other inorganic constituents. In a second step, batch bioleaching tests were conducted in shaker flasks to determine the effect of indigenous bacterial activity under different anaerobic conditions (i.e., addition of mineral nutrients and carbon sources) on arsenic mobilization. Results indicated that arsenic release during contact with deionized water was limited by its very low solubility in the interstitial solution and by the stability of the different arsenic compounds formed with the amorphous solid phases of the soil (mainly iron (oxy)hydroxides). However, an increased mobilization potential was observed over the long term under anaerobic conditions with indigenous bacterial activity enhanced by the addition of carbon sources.
    MeSH term(s) Arsenic/metabolism ; Bacteria, Anaerobic/physiology ; Biological Availability ; Soil Microbiology ; Soil Pollutants/metabolism
    Chemical Substances Soil Pollutants ; Arsenic (N712M78A8G)
    Language English
    Publishing date 2005-02
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 554791-x
    ISSN 1873-6750 ; 0160-4120
    ISSN (online) 1873-6750
    ISSN 0160-4120
    DOI 10.1016/j.envint.2004.09.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Cements in the 21

    Biernacki, Joseph J / Bullard, Jeffrey W / Sant, Gaurav / Banthia, Nemkumar / Brown, Kevin / Glasser, Fredrik P / Jones, Scott / Ley, Tyler / Livingston, Richard / Nicoleau, Luc / Olek, Jan / Sanchez, Florence / Shahsavari, Rouzbeh / Stutzman, Paul E / Sobolev, Konstantine / Prater, Tracie

    Journal of the American Ceramic Society. American Ceramic Society

    2017  Volume 100, Issue 7, Page(s) 2746–2773

    Abstract: In a book published in 1906, Richard Meade outlined the history of portland cement up to that ... ...

    Abstract In a book published in 1906, Richard Meade outlined the history of portland cement up to that point
    Language English
    Publishing date 2017-05-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2008170-4
    ISSN 1551-2916 ; 0002-7820
    ISSN (online) 1551-2916
    ISSN 0002-7820
    DOI 10.1111/jace.14948
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  10. Journal: Leaching Behavior of Pollutants in Stabilized/Solidified Wastes

    Barna, Radu / Sanchez, Florence / Moszkowicz, Pierre / Mehu, Jacques

    Journal of Hazardous Materials : Management, Handling, Disposal

    1997  Volume 52, Page(s) 287–310

    Abstract: Untersucht wurde die Schadstoffrueckhaltung in verfestigten Abfaellen mit hydraulischen Bindern, um deren Langzeitauslaugbarkeit vorhersagen zu koennen. Untersucht wurde eine zementierte Flugasche aus der Hausmuellverbrennung, eine Schlacke aus der ... ...

    Abstract Untersucht wurde die Schadstoffrueckhaltung in verfestigten Abfaellen mit hydraulischen Bindern, um deren Langzeitauslaugbarkeit vorhersagen zu koennen. Untersucht wurde eine zementierte Flugasche aus der Hausmuellverbrennung, eine Schlacke aus der Bleischmelze und verschiedene Salze. Als Binder wurden zwei verschiedene Zemente, ein Portlandzement OPC55 und ein CLK-45-Zement mit Additiven verwendet. Die Loeslichkeit einiger der chemischen Spezies, zum Beispiel der Uebergangsmetalle, war von der Zusammensetzung des Porenwassers und vom pH abhaengig die Loeslichkeit anderer Spezies aber nicht. Das Auslaugverhalten der untersuchten Spezies wurde mittels zweier modellmaessiger Ansaetze rechnerisch beschrieben.
    Keywords Abfallverfestigung ; Schadstoff ; Retention ; Schadstoffimmobilisierung ; Bindemittel ; Zement ; Auslaugung ; Schadstoffverhalten ; Loeslichkeit ; Schadstoffmobilisierung ; Schlacke ; Schwermetall ; Blei ; Zusatzstoff ; Modellierung ; Diffusion ; Verbrennungsrueckstand ; Abfallverbrennung ; Natrium ; Chlorid ; Mathematisches Modell
    Language English
    Document type Journal
    Database OPAC and Environmental database (ULIDAT) of The Federal Environment Agency (UBA)

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