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  1. Article ; Online: Canada's marine carbon sink

    P.J. Duke / B. Richaud / R. Arruda / J. Länger / K. Schuler / P. Gooya / M.M.M. Ahmed / M.R. Miller / C.A. Braybrook / K. Kam / R. Piunno / Y. Sezginer / G. Nickoloff / A.C. Franco

    FACETS, Vol 8, Iss , Pp 1-

    an early career perspective on the state of research and existing knowledge gaps

    2023  Volume 21

    Abstract: Improving our understanding of how the ocean absorbs carbon dioxide is critical to climate change mitigation efforts. We, a group of early career ocean professionals working in Canada, summarize current research and identify steps forward to improve our ... ...

    Abstract Improving our understanding of how the ocean absorbs carbon dioxide is critical to climate change mitigation efforts. We, a group of early career ocean professionals working in Canada, summarize current research and identify steps forward to improve our understanding of the marine carbon sink in Canadian national and offshore waters. We have compiled an extensive collection of reported surface ocean air–sea carbon dioxide exchange values within each of Canada's three adjacent ocean basins. We review the current understanding of air–sea carbon fluxes and identify major challenges limiting our understanding in the Pacific, the Arctic, and the Atlantic Ocean. We focus on ways of reducing uncertainty to inform Canada's carbon stocktake, establish baselines for marine carbon dioxide removal projects, and support efforts to mitigate and adapt to ocean acidification. Future directions recommended by this group include investing in maturing and building capacity in the use of marine carbon sensors, improving ocean biogeochemical models fit-for-purpose in regional and ocean carbon dioxide removal applications, creating transparent and robust monitoring, verification, and reporting protocols for marine carbon dioxide removal, tailoring community-specific approaches to co-generate knowledge with First Nations, and advancing training opportunities for early career ocean professionals in marine carbon science and technology.
    Keywords early career ; future research ; oceans ; ocean carbon flux ; marine carbon cycle ; ocean biogeochemistry ; Education ; L ; Science ; Q
    Subject code 551 ; 333
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Canadian Science Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Above-ground woody biomass allocation and within tree carbon and nutrient distribution of wild cherry (Prunus avium L.) – a case study

    Christopher Morhart / Jonathan P. Sheppard / Johanna K. Schuler / Heinrich Spiecker

    Forest Ecosystems, Vol

    2016  Volume 3

    Abstract: Background: The global search for new ways to sequester carbon has already reached agricultural lands. Such land constitutes a major potential carbon sink. The production of high value timber within agroforestry systems can facilitate an in-situ carbon ... ...

    Abstract Background: The global search for new ways to sequester carbon has already reached agricultural lands. Such land constitutes a major potential carbon sink. The production of high value timber within agroforestry systems can facilitate an in-situ carbon storage function. This is followed by a potential long term ex- situ carbon sinkwithin long lasting products such as veneer and furniture. For this purpose wild cherry (Prunus avium L.) is an interesting option for middle Europe, yielding high prices on the timber market. Methods: A total number of 39 wild cherry were sampled in 2012 and 2013 to assess the leafless above ground biomass. The complete trees including stem and branches were separated into 1 cm diameter classes. Wood and bark from sub-samples were analysed separately and nutrient content was derived. Models for biomass estimation were constructed for all tree compartments. Results: The smallest diameter classes possess the highest proportion of bark due to smaller cross sectional area. Tree boles with a greater amount of stem wood above 10 cm in diameter will have a more constant bark proportion. Total branch bark proportion also remains relatively constant above d1.3m measurements of 8 cm. A balance is evident between the production of new branches with a low diameter and high bark proportion offset by the thickening and a relative reduction in bark proportion in larger branches. The results show that a single tree with an age of 17 and 18 years can store up to 85 kg of carbon within the aboveground biomass portion, an amount that will increase as the tree matures. Branches display greater nutrient content than stem sections per volume unit which can be attributed to a greater bark proportion. Conclusions: Using the derived models the carbon and the nutrient content of above-ground woody biomass of whole trees can be calculated. Suggested values for carbon with other major and minor nutrients held within relatively immature trees strongly supports the idea of the inclusion of wild cherry within ...
    Keywords Ecology ; QH540-549.5
    Subject code 550
    Language English
    Publishing date 2016-02-01T00:00:00Z
    Publisher SpringerOpen
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Trabectedin in the Neoadjuvant Treatment of High-Grade Pleomorphic Sarcoma

    Markus K. Schuler / Stephan Richter / Ivan Platzek / Bettina Beuthien-Baumann / Kathrin Wieczorek / Christine Hamann / Johannes Mohm / Gerhard Ehninger

    Case Reports in Oncological Medicine, Vol

    Report of a Rare Case and Literature Review

    2013  Volume 2013

    Keywords Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Oncology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Language English
    Publishing date 2013-01-01T00:00:00Z
    Publisher Hindawi Publishing Corporation
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Biological carbon dioxide utilisation in food waste anaerobic digesters

    Bajón Fernández, Y / A. Soares / E. Cartmell / K. Green / K. Schuler / L. Alibardi / P. Vale

    Water research. 2015 Dec. 15, v. 87

    2015  

    Abstract: Carbon dioxide (CO2) enrichment of anaerobic digesters (AD) was previously identified as a potential on-site carbon revalorisation strategy. This study addresses the lack of studies investigating this concept in up-scaled units and the need to understand ...

    Abstract Carbon dioxide (CO2) enrichment of anaerobic digesters (AD) was previously identified as a potential on-site carbon revalorisation strategy. This study addresses the lack of studies investigating this concept in up-scaled units and the need to understand the mechanisms of exogenous CO2 utilisation. Two pilot-scale ADs treating food waste were monitored for 225 days, with the test unit being periodically injected with CO2 using a bubble column. The test AD maintained a CH4 production rate of 0.56 ± 0.13 m3 CH4·(kg VSfed d)−1 and a CH4 concentration in biogas of 68% even when dissolved CO2 levels were increased by a 3 fold over the control unit. An additional uptake of 0.55 kg of exogenous CO2 was achieved in the test AD during the trial period. A 2.5 fold increase in hydrogen (H2) concentration was observed and attributed to CO2 dissolution and to an alteration of the acidogenesis and acetogenesis pathways. A hypothesis for conversion of exogenous CO2 has been proposed, which requires validation by microbial community analysis.
    Keywords anaerobic digesters ; biogas ; carbon ; carbon dioxide ; dissolved carbon dioxide ; food waste ; hydrogen ; methane ; methane production ; microbial communities
    Language English
    Dates of publication 2015-1215
    Size p. 467-475.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 202613-2
    ISSN 1879-2448 ; 0043-1354
    ISSN (online) 1879-2448
    ISSN 0043-1354
    DOI 10.1016/j.watres.2015.06.011
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: CTA-Diagnostik (MSCTA) bei akutem Thoraxschmerz in der Notaufnahme - Umdenken in der Abklärungsstrategie notwendig?

    Michalski, T / Hergan, K / Schuler, J / Weixlbaumer, H / Hoyer, H / Pichler, M

    Journal für Kardiologie - Austrian Journal of Cardiology

    2010  Volume 17, Issue 9, Page(s) 372–374

    Publishing date 20101006
    Document type Article ; Online
    ZDB-ID 2008212-5
    ISSN 1680-936X ; 1024-0098
    ISSN (online) 1680-936X
    ISSN 1024-0098
    Database Krause and Pachernegg publications database

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  6. Article ; Online: PET/MRI Imaging in High-Risk Sarcoma

    Gerhard Ehninger / Peter Reichardt / Jörg van den Hoff / Jörg Kotzerke / Ivan Platzek / Stephan Richter / Bettina Beuthien-Baumann / Markus K. Schuler

    Case Reports in Oncological Medicine, Vol

    First Findings and Solving Clinical Problems

    2013  Volume 2013

    Keywords Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Oncology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Language English
    Publishing date 2013-01-01T00:00:00Z
    Publisher Hindawi Publishing Corporation
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Predictors of appropriate ICD therapy in patients with arrhythmogenic right ventricular cardiomyopathy

    Pia K Schuler / Laurent M Haegeli / Ardan M Saguner / Thomas Wolber / Felix C Tanner / Rolf Jenni / Natascia Corti / Thomas F Lüscher / Corinna Brunckhorst / Firat Duru

    PLoS ONE, Vol 7, Iss 9, p e

    long term experience of a tertiary care center.

    2012  Volume 39584

    Abstract: INTRODUCTION: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a rare genetically transmitted disease prone to ventricular arrhythmias. We therefore investigated the clinical, echocardiographical and electrophysiological predictors of ... ...

    Abstract INTRODUCTION: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a rare genetically transmitted disease prone to ventricular arrhythmias. We therefore investigated the clinical, echocardiographical and electrophysiological predictors of appropriate implantable cardioverter defibrillator (ICD) therapy in patients with ARVC. METHODS: A retrospective analysis was performed in 26 patients (median age of 40 years at diagnosis, 21 males and 5 females) with ARVC who underwent ICD implantation. RESULTS: Over a median (range) follow-up period of 10 (2.7, 37) years, appropriate ICD therapy for ventricular arrhythmias was documented in 12 (46%) out of 26 patients. In all patients with appropriate ICD therapy the ICD was originally inserted for secondary prevention. Median time from ICD implantation to ICD therapy was 9 months (range 3.6, 54 months). History of heart failure was a significant predictor of appropriate ICD therapy (p = 0.033). Left ventricular disease involvement (p = 0.059) and age at implantation (p = 0.063) were borderline significant predictors. Patients with syncope at time of diagnosis were significantly less likely to receive ICD therapy (p = 0.02). Invasive electrophysiological testing was not significantly associated with appropriate ICD therapy. CONCLUSION: In our cohort of patients with ARVC, history of heart failure was a significant predictor of appropriate ICD therapy, whereas left ventricular involvement and age at time of ICD implantation were of borderline significance. These predictors should be tested in larger prospective cohorts to optimize ICD therapy in this rare cardiomyopathy.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2012-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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