6 results on '"Tobias Korf"'
Search Results
2. COSMOS-Europe: a European network of cosmic-ray neutron soil moisture sensors
- Author
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Heye Reemt Bogena, Martin Schrön, Jannis Jakobi, Patrizia Ney, Steffen Zacharias, Mie Andreasen, Roland Baatz, David Boorman, Mustafa Berk Duygu, Miguel Angel Eguibar-Galán, Benjamin Fersch, Till Franke, Josie Geris, María González Sanchis, Yann Kerr, Tobias Korf, Zalalem Mengistu, Arnaud Mialon, Paolo Nasta, Jerzy Nitychoruk, Vassilios Pisinaras, Daniel Rasche, Rafael Rosolem, Hami Said, Paul Schattan, Marek Zreda, Stefan Achleitner, Eduardo Albentosa-Hernández, Zuhal Akyürek, Theresa Blume, Antonio del Campo, Davide Canone, Katya Dimitrova-Petrova, John G. Evans, Stefano Ferraris, Félix Frances, Davide Gisolo, Andreas Güntner, Frank Herrmann, Joost Iwema, Karsten H. Jensen, Harald Kunstmann, Antonio Lidón, Majken Caroline Looms, Sascha Oswald, Andreas Panagopoulos, Amol Patil, Daniel Power, Corinna Rebmann, Nunzio Romano, Lena Scheiffele, Sonia Seneviratne, Georg Weltin, Harry Vereecken, Bogena, Heye Reemt, Schrön, Martin, Jakobi, Janni, Ney, Patrizia, Zacharias, Steffen, Andreasen, Mie, Baatz, Roland, Boorman, David, Duygu, Mustafa Berk, Eguibar-Galán, Miguel Angel, Fersch, Benjamin, Franke, Till, Geris, Josie, González Sanchis, María, Kerr, Yann, Korf, Tobia, Mengistu, Zalalem, Mialon, Arnaud, Nasta, Paolo, Nitychoruk, Jerzy, Pisinaras, Vassilio, Rasche, Daniel, Rosolem, Rafael, Said, Hami, Schattan, Paul, Zreda, Marek, Achleitner, Stefan, Albentosa-Hernández, Eduardo, Akyürek, Zuhal, Blume, Theresa, del Campo, Antonio, Canone, Davide, Dimitrova-Petrova, Katya, Evans, John G., Ferraris, Stefano, Frances, Félix, Gisolo, Davide, Güntner, Andrea, Herrmann, Frank, Iwema, Joost, Jensen, Karsten H., Kunstmann, Harald, Lidón, Antonio, Looms, Majken Caroline, Oswald, Sascha, Panagopoulos, Andrea, Patil, Amol, Power, Daniel, Rebmann, Corinna, Romano, Nunzio, Scheiffele, Lena, Seneviratne, Sonia, Weltin, Georg, Vereecken, Harry, Centre d'études spatiales de la biosphère (CESBIO), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
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Water en Landgebruik ,Water and Land Use ,soil moisture, cosmic-ray neutron sensor, climate change, drought, European network ,Soil moisture, cosmic ray, COSMOS-Europe ,COSMOS-Europe ,Bodem, Water en Landgebruik ,Soil ,Earth sciences ,Bodem ,Soil, Water and Land Use ,Agriculture and Soil Science ,[SDU]Sciences of the Universe [physics] ,ddc:550 ,General Earth and Planetary Sciences ,Life Science ,Soil moisture ,Hydrology ,cosmic ray - Abstract
Climate change increases the occurrence and severity of droughts due to increasing temperatures, altered circulation patterns, and reduced snow occurrence. While Europe has suffered from drought events in the last decade unlike ever seen since the beginning of weather recordings, harmonized long-term datasets across the continent are needed to monitor change and support predictions. Here we present soil moisture data from 66 cosmic-ray neutron sensors (CRNSs) in Europe (COSMOS-Europe for short) covering recent drought events. The CRNS sites are distributed across Europe and cover all major land use types and climate zones in Europe. The raw neutron count data from the CRNS stations were provided by 24 research institutions and processed using state-of-the-art methods. The harmonized processing included correction of the raw neutron counts and a harmonized methodology for the conversion into soil moisture based on available in situ information. In addition, the uncertainty estimate is provided with the dataset, information that is particularly useful for remote sensing and modeling applications. This paper presents the current spatiotemporal coverage of CRNS stations in Europe and describes the protocols for data processing from raw measurements to consistent soil moisture products. The data of the presented COSMOS-Europe network open up a manifold of potential applications for environmental research, such as remote sensing data validation, trend analysis, or model assimilation The dataset could be of particular importance for the analysis of extreme climatic events at the continental scale. Due its timely relevance in the scope of climate change in the recent years, we demonstrate this potential application with a brief analysis on the spatiotemporal soil moisture variability. The dataset, entitled "Dataset of COSMOS-Europe: A European network of Cosmic-Ray Neutron Soil Moisture Sensors", is shared via Forschungszentrum Julich: https://doi.org/10.34731/x9s3-kr48 (Bogena and Ney, 2021)., Earth System Science Data, 14 (3), ISSN:1866-3516, ISSN:1866-3508
- Published
- 2022
3. COSMOS-Europe: A European Network of Cosmic-Ray Neutron Soil Moisture Sensors
- Author
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Lena M. Scheiffele, Andreas Güntner, Paul Schattan, Sonia I. Seneviratne, Yann Kerr, Majken C. Looms, Berk M. Duygu, Antonio D. del Campo, Patrizia Ney, Daniel Power, Zuhal Akyürek, Miguel A. Eguibar-Galán, Harry Vereecken, Heye Bogena, Hami Said, Jerzy Nitychoruk, Josie Geris, Theresa Blume, Marek Zreda, Corinna Rebmann, Mie Andreasen, Daniel Rasche, Stefan Achleitner, Tobias Korf, Georg Weltin, Frank Herrmann, María González Sanchis, Eduardo Albentosa-Hernández, Nunzio Romano, Harald Kunstmann, Martin Schrön, Joost Iwema, Félix Francés, Antonio Lidón, Roland Baatz, Till Franke, Vassilios Pisinaras, Paolo Nasta, Karsten Høgh Jensen, John G. Evans, Andreas Panagopoulos, Amol Patil, Arnaud Mialon, Zalalem Mengistu, Sascha E. Oswald, Benjamin Fersch, Steffen Zacharias, Rafael Rosolem, Jannis Jakobi, David Boorman, and Katya Dimitrova-Petrova
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Climate zones ,Data processing ,Land use ,Meteorology ,Environmental science ,Climate change ,Cosmic ray ,Neutron ,Snow ,Water content - Abstract
Human-caused climate change increases the occurrence and severity of droughts due to increasing temperatures, altered circulation patterns and reduced snow occurrence. For example, Europe has suffered from drought events in the last decade like never since the beginning of weather recording. Here we present soil moisture data from 65 Cosmic-ray neutron sensors (CRNS) in Europe (COSMOS-Europe for short) covering recent drought events. The CRNS sites are distributed across Europe and cover all major land use types and climate zones in Europe. The raw neutron count data from the CRNS stations were provided by 23 research institutions and processed using state-of-the-art methods. The harmonised processing included correction of the raw neutron counts, and a harmonised methodology for the conversion into soil moisture based on available in-situ information. In addition, information on the data uncertainty is provided with the dataset, information that is particularly useful for remote sensing and modelling applications. This paper presents the current spatiotemporal coverage of CRNS stations in Europe and describes the protocols for data processing from raw measurements to consistent soil moisture products as well as first results on how the recent drought events have been captured by the CRNS network. This harmonised European soil moisture dataset will help both hydrologists and climate scientists to study individual drought events, to understand their causes, to evaluate and improve their modelling, and to estimate the extremity of current events. The dataset, entitled “Dataset of COSMOS-Europe: A European network of Cosmic-Ray Neutron Soil Moisture Sensors”, is shared via Forschungszentrum Jülich: https://doi.org/10.34731/x9s3-kr48 (Bogena and Ney, 2021).
- Published
- 2021
4. Anti-GP2 IgA autoantibodies are associated with poor survival and cholangiocarcinoma in primary sclerosing cholangitis
- Author
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Stefanie Derer, Swantje Mindorf, Marc Ehlers, Mette Vesterhus, Bianca Teegen, Hendrik Lehnert, Tobias Korf, Peter Schemmer, Florian Bär, Maike Anna Michaels, Thomas Nitzsche, Christoph M. Hammers, Laila Widmann, Lars Komorowski, Christian Sina, Johannes R. Hov, Daniel Gotthardt, Sebastian Torben Jendrek, Klaus Fellermann, Karl Heinz Weiss, Torsten Schröder, Tom H. Karlsen, and Evaggelia Liaskou
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0301 basic medicine ,medicine.medical_specialty ,endocrine system diseases ,Autoimmune hepatitis ,Disease ,digestive system ,Gastroenterology ,Primary sclerosing cholangitis ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,biology ,business.industry ,digestive, oral, and skin physiology ,Autoantibody ,medicine.disease ,digestive system diseases ,030104 developmental biology ,Immunology ,Cohort ,biology.protein ,Secondary sclerosing cholangitis ,030211 gastroenterology & hepatology ,Bile Duct Diseases ,Antibody ,business - Abstract
Objective: Pancreatic autoantibodies (PABs), comprising antibodies against glycoprotein 2 (anti-GP2), are typically associated with complicated phenotypes in Crohn's disease, but have also been observed with variable frequencies in patients with UC. In a previous study, we observed a high frequency of primary sclerosing cholangitis (PSC) in patients with anti-GP2-positive UC. We therefore aimed to characterise the role of anti-GP2 in PSC. Design: In an evaluation phase, sera from 138 well-characterised Norwegian patients with PSC were compared with healthy controls (n=52), and patients with UC without PSC (n=62) for the presence of PABs by indirect immunofluorescence. Further, 180 German patients with PSC served as a validation cohort together with 56 cases of cholangiocarcinoma without PSC, 20 of secondary sclerosing cholangitis (SSC) and 18 of autoimmune hepatitis. Results: Anti-GP2 IgA specifically occurred at considerable rates in large bile duct diseases (cholangiocarcinoma=36%, PSC and SSC about 50%). In PSC, anti-GP2 IgA consistently identified patients with poor survival during follow-up (Norwegian/German cohort: p Log Rank=0.016/0.018). Anti-GP2 IgA was associated with the development of cholangiocarcinoma in both PSC cohorts, yielding an overall OR of cholangiocarcinoma in patients with anti-GP2 IgA-positive PSC of 5.0 (p=0.001). Importantly, this association remained independent of disease duration, bilirubin level and age. Conclusions: Anti-GP2 IgA can be hypothesised as a novel marker in large bile duct diseases. In particular, in PSC, anti-GP2 IgA identified a subgroup of patients with severe phenotype and poor survival due to cholangiocarcinoma. Anti-GP2 IgA may therefore be a clinically valuable tool for risk stratification in PSC. The final version of this research has been published in Hepatology. © 2016 Wiley
- Published
- 2016
5. Pancreatic Autoantibodies Against CUZD1 and GP2 Are Associated with Distinct Clinical Phenotypes of Crohn's Disease
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Torsten Schröder, Klaus Fellerman, Maike Anna Michaels, Henrik Lehnert, Stefanie Derer, Sebastian Torben Jendrek, Florian Baer, Bianca Teegen, Christian Sina, Tobias Korf, Thomas Nitzsche, Jürgen Büning, and Lars Komorowski
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Immunoglobulin A ,Adult ,Male ,Disease ,Biology ,GPI-Linked Proteins ,Inflammatory bowel disease ,Cohort Studies ,Crohn Disease ,Germany ,medicine ,Immunology and Allergy ,Humans ,Clinical significance ,Colitis ,Fluorescent Antibody Technique, Indirect ,Pancreas ,Autoantibodies ,Crohn's disease ,Gastroenterology ,Autoantibody ,Membrane Proteins ,Middle Aged ,medicine.disease ,Ulcerative colitis ,Phenotype ,Immunoglobulin G ,Immunology ,biology.protein ,Colitis, Ulcerative ,Female ,Biomarkers - Abstract
BACKGROUND Inflammatory bowel disease (IBD) is characterized by a broad spectrum of clinical phenotypes with different outcomes. In the last decades, several IBD-associated autoantibodies have been identified and investigated for their diagnostic relevance. Autoantibodies against the pancreatic glycoproteins (PAB) CUB and zona pellucida-like domains-containing protein 1 (CUZD1), and glycoprotein 2 (GP2) have been demonstrated to possess high specificity for the diagnosis of IBD. Although several studies have shown significant interrelations of anti-GP2 positivity with disease phenotype, associations of clinical phenotypes with anti-CUZD1 are still unknown. The aim was to identify the association of clinical phenotypes with anti-CUZD1 and anti-GP2 in a well-defined German IBD cohort. METHODS Patients with IBD (224 patients with Crohn's disease and 136 patients with ulcerative colitis), who were tested for anti-GP2 and anti-CUZD1 immunoglobulin G and immunoglobulin A by indirect immunofluorescence on transfected cells between 2005 and 2013, were included. Serotype and specified phenotypic data were collected in retrospect and statistically analyzed. RESULTS Both anti-GP2 (P < 0.001) and anti-CUZD1 (P < 0.001) were significantly more prevalent in patients with Crohn's disease than in ulcerative colitis. PAB positivity was associated with ileocolonic disease (P = 0.002), perianal disease (P = 0.011), immunosuppressive treatment (P = 0.036), and ASCA positivity (P = 0.036). Anti-CUZD1 positivity was associated with ileocolonic (P = 0.016) and perianal disease (P = 0.002), whereas anti-GP2 positivity was positively associated with stricturing behavior (P = 0.016). CONCLUSIONS We found distinct clinical phenotypes to be associated with PAB positivity. Therefore, determination of PABs and their subgroup analysis might identify patients with complicated disease behavior. However, the clinical relevance of our findings should be further evaluated in prospective cohorts.
- Published
- 2015
6. Autoreactive Iga Antibodies against the Pancreatic Major Glycoprotein 2 are Associated with Primary Sclerosing Cholangitis and Related Biliary Tract Cancer
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Thomas Nitzsche, Christoph M. Hammers, Daniel Gotthardt, Tom H. Karlsen, Peter Schemmer, Lars Komorowski, Klaus Fellermann, Johannes R. Hov, Sebastian Torben Jendrek, Karl-Heinz Weiss, Torsten Schröder, Stefanie Derer, Swantje Mindorf, Mette Vesterhus, Marc Ehlers, Evaggelia Liaskou, Maike Anna Michaels, Florian Bär, Christian Sina, Tobias Korf, and Hendrik Lehnert
- Subjects
0301 basic medicine ,chemistry.chemical_classification ,medicine.medical_specialty ,Biliary tract cancer ,Hepatology ,biology ,business.industry ,medicine.disease ,Gastroenterology ,Primary sclerosing cholangitis ,03 medical and health sciences ,030104 developmental biology ,chemistry ,Internal medicine ,medicine ,biology.protein ,Antibody ,business ,Glycoprotein - Published
- 2016
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