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  1. Article ; Online: Factors Influencing the Formation of Nitrous Acid from Photolysis of Particulate Nitrate.

    Sommariva, R / Alam, M S / Crilley, L R / Rooney, D J / Bloss, W J / Fomba, K W / Andersen, S T / Carpenter, L J

    The journal of physical chemistry. A

    2023  Volume 127, Issue 44, Page(s) 9302–9310

    Abstract: Enhanced photolysis of particulate nitrate ( ... ...

    Abstract Enhanced photolysis of particulate nitrate (pNO
    Language English
    Publishing date 2023-10-25
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.3c03853
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: The psychiatric and psychological sequelae of vaccine-induced immune thrombotic thrombocytopenia (VITT)

    Carpenter, Lindsay J. / Solomons, Luke / Grabe, Hans J. / Pavord, Sue

    Seminars in Hematology

    2022  Volume 59, Issue 2, Page(s) 115–119

    Abstract: Abstract not released by publisher. ...

    Title translation Die psychiatrischen und psychologischen Folgen der impfstoffinduzierten thrombotischen Thrombozytopenie (VITT)
    Abstract Abstract not released by publisher.
    Keywords COVID-19 ; Cardiovascular Disorders ; Delirium ; Folgeschäden ; Impfung ; Kardiovaskuläre Störungen ; Mental Health ; Psychische Gesundheit ; Psychosocial Assessment ; Psychosoziale Messung ; Sequelae ; Thrombosen ; Thromboses ; Vaccination ; Well Being ; Wohlbefinden
    Language English
    Document type Article
    ZDB-ID 206923-4
    ISSN 1532-8686 ; 0037-1963
    ISSN (online) 1532-8686
    ISSN 0037-1963
    DOI 10.1053/j.seminhematol.2022.02.003
    Database PSYNDEX

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 328: Show issues Location:
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  3. Book ; Online: A Relaxed Eddy Accumulation (REA)-GC/MS system for the determination of halocarbon fluxes

    Hornsby, K. E. / Flynn, M. J. / Dorsey, J. R. / Gallagher, M. W. / Chance, R. / Jones, C. E. / Carpenter, L. J.

    eISSN: 1867-8548

    2018  

    Abstract: Very short lived halocarbons (VSLH) play an important role in the transport of halogen atoms to the troposphere and lower stratosphere. Here we describe the development of a relaxed eddy accumulation system using gas chromatography coupled to a mass ... ...

    Abstract Very short lived halocarbons (VSLH) play an important role in the transport of halogen atoms to the troposphere and lower stratosphere. Here we describe the development of a relaxed eddy accumulation system using gas chromatography coupled to a mass spectrometer (REA-GC/MS) to determine surface fluxes of VSLH with a time resolution of about 0.5 h. Laboratory tests showed that use of a common inlet for upward, downward and deadband flow paths resulted in mixing of upward and downward moving air masses, therefore we recommend the use of separate inlets. The modified system underwent field trials at Mace Head on the west coast of Ireland, where there are dense kelp beds known to emit a range of halocarbons. Over a 16 h period in mid-September 2007, the mean fluxes obtained were 16.1±1.8, 4.0±0.54 and 1.2±0.2 nmol m −2 day −1 for CH 2 Br 2 CH 2 ICl and CH 2 IBr, respectively.
    Subject code 333
    Language English
    Publishing date 2018-01-15
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Thermal evolution of diffusive transport of atmospheric halocarbons through artificial sea–ice

    Shaw, M.D / Carpenter, L.J / Baeza-Romero, M.T / Jackson, A.V

    Atmospheric environment. 2011 Nov., v. 45, no. 35

    2011  

    Abstract: Diffusion through brine channels in sea–ice is a potential pathway for trace gases produced under and within sea–ice to exchange with the overlying atmosphere. The effectiveness of this transport pathway is highly dependent on temperature and sea–ice ... ...

    Abstract Diffusion through brine channels in sea–ice is a potential pathway for trace gases produced under and within sea–ice to exchange with the overlying atmosphere. The effectiveness of this transport pathway is highly dependent on temperature and sea–ice thickness, both of which are changing in favour of increased gas diffusion through porous sea–ice. We conducted several experiments with artificial sea–ice in a cold chamber to assess the potential for dissolved gaseous halocarbons to percolate through brine channels within sea–ice to the overlying air. Physico-chemical properties of the hyper-saline brine, sea–ice and the under-lying seawater were measured to quantify the vertical transport of a comprehensive range of volatile organic iodinated compounds (VOICs), including CH₃I, C₂H₅I, 2-C₃H₇I and 1-C₃H₇I, at air temperatures of −3 and −14°C. We find that the vertical transport of VOICs through sea–ice provides a very small flux pathway for gas transport during periods of consolidated ice cover. The results suggest that VOIC gas transfer velocities from diffusion through the sea–ice alone are at least ∼60 times lower at −3°C than gas exchange from leads and polynas during the winter (assuming a sea–ice fractional coverage of 0.1). Assuming 100% brine channel fractional connectivity and a diffusion coefficient (D) of 5×10⁻⁵cm²s⁻¹ at −3°C, the timescale of diffusion through 500mm of first year sea–ice is ∼145 days. This has significant implications for in-situ VOIC losses within the brine from chlorination, hydrolysis and photolysis processes and it is unlikely that measurable concentrations of VOICs would survive vertical transport from the under-lying seawater to the surface sea–ice quasi-liquid layer.
    Keywords air ; air temperature ; atmospheric chemistry ; chlorination ; cold ; diffusivity ; gas exchange ; hydrolysis ; ice ; methyl iodide ; photolysis ; seawater ; winter
    Language English
    Dates of publication 2011-11
    Size p. 6393-6402.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 216368-8
    ISSN 0004-6981 ; 1352-2310
    ISSN 0004-6981 ; 1352-2310
    DOI 10.1016/j.atmosenv.2011.08.023
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 783: Show issues Location:
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  5. Article: Effects of halogens on European air-quality.

    Sherwen, T / Evans, M J / Sommariva, R / Hollis, L D J / Ball, S M / Monks, P S / Reed, C / Carpenter, L J / Lee, J D / Forster, G / Bandy, B / Reeves, C E / Bloss, W J

    Faraday discussions

    2017  Volume 200, Page(s) 75–100

    Abstract: Halogens (Cl, Br) have a profound influence on stratospheric ozone ( ... ...

    Abstract Halogens (Cl, Br) have a profound influence on stratospheric ozone (O
    Language English
    Publishing date 2017-06-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1359-6640
    ISSN 1359-6640
    DOI 10.1039/c7fd00026j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Conference proceedings: Brain Injury Scores of Neonates with Complex Congenital Heart Disease

    Kuhn, V. / Carpenter, L. J. / Tague, L. / Donofrio, T. M. / Murnick, J. / Zurakowski, D. / Axt-Fliedner, R. / Jonas, A. R. / Limperopoulos, C. / Yerebakan, C.

    The Thoracic and Cardiovascular Surgeon

    2019  Volume 67, Issue S 02

    Event/congress 51st Annual Meeting German Society for Pediatric Cardiology, Wiesbaden, 2019-02-16
    Language English
    Publishing date 2019-01-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 800050-5
    ISSN 1439-1902 ; 0171-6425 ; 0946-4778 ; 0172-6137
    ISSN (online) 1439-1902
    ISSN 0171-6425 ; 0946-4778 ; 0172-6137
    DOI 10.1055/s-0039-1679081
    Database Thieme publisher's database

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    Uk I Zs.186: Show issues Location:
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  7. Book ; Online: A laboratory characterisation of inorganic iodine emissions from the sea surface

    MacDonald, S. M. / Gómez Martín, J. C. / Chance, R. / Warriner, S. / Saiz-Lopez, A. / Carpenter, L. J. / Plane, J. M. C.

    eISSN: 1680-7324

    dependence on oceanic variables and parameterisation for global modelling

    2014  

    Abstract: Reactive iodine compounds play a significant role in the atmospheric chemistry of the oceanic boundary layer by influencing the oxidising capacity through catalytically removing O 3 and altering the HO x and NO x balance. The sea-to-air flux of iodine ... ...

    Abstract Reactive iodine compounds play a significant role in the atmospheric chemistry of the oceanic boundary layer by influencing the oxidising capacity through catalytically removing O 3 and altering the HO x and NO x balance. The sea-to-air flux of iodine over the open ocean is therefore an important quantity in assessing these impacts on a global scale. This paper examines the effect of a number of relevant environmental parameters, including water temperature, salinity and organic compounds, on the magnitude of the HOI and I 2 fluxes produced from the uptake of O 3 and its reaction with iodide ions in aqueous solution. The results of these laboratory experiments and those reported previously (Carpenter et al., 2013), along with sea surface iodide concentrations measured or inferred from measurements of dissolved total iodine and iodate reported in the literature, were then used to produce parameterised expressions for the HOI and I 2 fluxes as a function of wind speed, sea-surface temperature and O 3 . These expressions were used in the Tropospheric HAlogen chemistry MOdel (THAMO) to compare with MAX-DOAS measurements of iodine monoxide (IO) performed during the HaloCAST-P cruise in the eastern Pacific ocean (Mahajan et al., 2012). The modelled IO agrees reasonably with the field observations, although significant discrepancies are found during a period of low wind speeds (< 3 m s −1 ), when the model overpredicts IO by up to a factor of 3. The inorganic iodine flux contributions to IO are found to be comparable to, or even greater than, the contribution of organo-iodine compounds and therefore its inclusion in atmospheric models is important to improve predictions of the influence of halogen chemistry in the marine boundary layer.
    Subject code 551
    Language English
    Publishing date 2014-06-12
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Depth profiles of volatile iodine and bromine-containing halocarbons in coastal Antarctic waters

    Carpenter, L. J. / Wevill, D. J. / Palmer, C. J. / Michels, Jan

    2007  

    Abstract: Measurements of bromoform (CHBr3), diiodomethane (CH2I2), chloroiodomethane (CH2ICl) and bromoiodomethane (CH2IBr) were made in the water column (5–100 m depth) of the Southern Ocean within 0–40 km of the Antarctic sea ice during the ANTXX1/2 transect of ...

    Abstract Measurements of bromoform (CHBr3), diiodomethane (CH2I2), chloroiodomethane (CH2ICl) and bromoiodomethane (CH2IBr) were made in the water column (5–100 m depth) of the Southern Ocean within 0–40 km of the Antarctic sea ice during the ANTXX1/2 transect of the German R/V Polarstern, at five locations between 70–72°S and 9–11°W in the Antarctic spring/summer of 2003–2004. Some of the profiles exhibited a very pronounced layer of surface sea-ice meltwater, as evidenced by salinity minima and temperature maxima, along with surface maxima in concentrations of CHBr3, CH2I2, CH2ICl and CH2IBr. These results are consistent with in situ surface halocarbon production by ice algae liberated from the sea ice, although production within the sea ice followed by transport cannot be entirely ruled out. Additional sub-surface maxima in halocarbons occurred between 20 and 80 m. At a station further from shore and not affected by surface sea-ice meltwater, surface concentrations of CH2I2 were decreased whereas CH2ICl concentrations were increased compared to the stations influenced by meltwater, consistent with photochemical conversion of CH2I2 to CH2ICl, perhaps during upward mixing from a layer at ∼ 70 m enhanced in iodocarbons. Mean surface (5–10 m) water concentrations of halocarbons in these coastal Antarctic waters were 57 pmol l− 1 CHBr3 (range 44–78 pmol l− 1), 4.2 pmol l− 1 CH2I2 (range 1.7–8.2 pmol l− 1), 0.8 pmol l− 1 CH2IBr (range 0.2–1.4 pmol l− 1), and 0.7 pmol l− 1 CH2ICl (range 0.2–2.4 pmol l− 1). Concurrent measurements in air suggested a sea-air flux of bromoform near the Antarctic coast of between 1 and 100 (mean 32.3, median 10.4) nmol m− 2 day− 1 and saturation anomalies of 557–1082% (mean 783%, median 733%), similar in magnitude to global shelf values. In surface samples affected by meltwater, CH2I2 fluxes ranged from 0.02 to 6.1 nmol m− 2 day− 1, with mean and median values of 1.9 and 1.1 nmol m− 2 day− 1, respectively.
    Language English
    Publisher Elsevier
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Book ; Online: Technical Note

    Butler, J. H. / Bell, T. G. / Hall, B. D. / Quack, B. / Carpenter, L. J. / Williams, J.

    eISSN: 1680-7324

    Ensuring consistent, global measurements of very short-lived halocarbon gases in the ocean and atmosphere

    2010  

    Abstract: Very short-lived halocarbons are significant sources of reactive halogen in the marine boundary layer, and likely in the upper troposphere and lower stratosphere. Quantifying ambient concentrations in the surface ocean and atmosphere is essential for ... ...

    Abstract Very short-lived halocarbons are significant sources of reactive halogen in the marine boundary layer, and likely in the upper troposphere and lower stratosphere. Quantifying ambient concentrations in the surface ocean and atmosphere is essential for understanding the atmospheric impact of these trace gas fluxes. Despite the body of literature increasing substantially over recent years, calibration issues complicate the comparison of results and limit the utility of building larger-scale databases that would enable further development of the science (e.g. sea-air flux quantification, model validation, etc.). With this in mind, thirty-one scientists from both atmospheric and oceanic halocarbon communities in eight nations gathered in London in February 2008 to discuss the scientific issues and plan an international effort toward developing common calibration scales ( http://tinyurl.com/c9cg58 ). Here, we discuss the outputs from this meeting, suggest the compounds that should be targeted initially, identify opportunities for beginning calibration and comparison efforts, and make recommendations for ways to improve the comparability of previous and future measurements.
    Subject code 551
    Language English
    Publishing date 2010-01-18
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Technical Note

    Butler, J.H. / Bell, T.G. / Hall, B.D. / Quack, Birgit / Carpenter , L. J. / Williams, J.

    Ensuring consistent, global measurements of very short-lived halocarbon gases in the ocean and atmosphere

    2010  

    Abstract: Very short-lived halocarbons are significant sources of reactive halogen in the marine boundary layer, and likely in the upper troposphere and lower stratosphere. Quantifying ambient concentrations in the surface ocean and atmosphere is essential for ... ...

    Abstract Very short-lived halocarbons are significant sources of reactive halogen in the marine boundary layer, and likely in the upper troposphere and lower stratosphere. Quantifying ambient concentrations in the surface ocean and atmosphere is essential for understanding the atmospheric impact of these trace gas fluxes. Despite the body of literature increasing substantially over recent years, calibration issues complicate the comparison of results and limit the utility of building larger-scale databases that would enable further development of the science (e.g. sea-air flux quantification, model validation, etc.). With this in mind, thirtyone scientists from both atmospheric and oceanic halocarbon communities in eight nations gathered in London in February 2008 to discuss the scientific issues and plan an international effort toward developing common calibration scales (http://tinyurl.com/c9cg58). Here, we discuss the outputs from this meeting, suggest the compounds that should be targeted initially, identify opportunities for beginning calibration and comparison efforts, and make recommendations for ways to improve the comparability of previous and future measurements.
    Subject code 551
    Language English
    Publisher Copernicus Publications (EGU)
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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