Müncheberg field trial data set for agro-ecosystem model validation

Author(s):  
Wilfried Mirschel ◽  
Karl-Otto Wenkel ◽  
Martin Wegehenkel ◽  
Kurt Christian Kersebaum ◽  
Uwe Schindler ◽  
...  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ann-Marie Mallon ◽  
Dieter A. Häring ◽  
Frank Dahlke ◽  
Piet Aarden ◽  
Soroosh Afyouni ◽  
...  

Abstract Background Novartis and the University of Oxford’s Big Data Institute (BDI) have established a research alliance with the aim to improve health care and drug development by making it more efficient and targeted. Using a combination of the latest statistical machine learning technology with an innovative IT platform developed to manage large volumes of anonymised data from numerous data sources and types we plan to identify novel patterns with clinical relevance which cannot be detected by humans alone to identify phenotypes and early predictors of patient disease activity and progression. Method The collaboration focuses on highly complex autoimmune diseases and develops a computational framework to assemble a research-ready dataset across numerous modalities. For the Multiple Sclerosis (MS) project, the collaboration has anonymised and integrated phase II to phase IV clinical and imaging trial data from ≈35,000 patients across all clinical phenotypes and collected in more than 2200 centres worldwide. For the “IL-17” project, the collaboration has anonymised and integrated clinical and imaging data from over 30 phase II and III Cosentyx clinical trials including more than 15,000 patients, suffering from four autoimmune disorders (Psoriasis, Axial Spondyloarthritis, Psoriatic arthritis (PsA) and Rheumatoid arthritis (RA)). Results A fundamental component of successful data analysis and the collaborative development of novel machine learning methods on these rich data sets has been the construction of a research informatics framework that can capture the data at regular intervals where images could be anonymised and integrated with the de-identified clinical data, quality controlled and compiled into a research-ready relational database which would then be available to multi-disciplinary analysts. The collaborative development from a group of software developers, data wranglers, statisticians, clinicians, and domain scientists across both organisations has been key. This framework is innovative, as it facilitates collaborative data management and makes a complicated clinical trial data set from a pharmaceutical company available to academic researchers who become associated with the project. Conclusions An informatics framework has been developed to capture clinical trial data into a pipeline of anonymisation, quality control, data exploration, and subsequent integration into a database. Establishing this framework has been integral to the development of analytical tools.


2019 ◽  
Vol 247 ◽  
pp. 525-536 ◽  
Author(s):  
Mingyang Sun ◽  
Predrag Djapic ◽  
Marko Aunedi ◽  
Danny Pudjianto ◽  
Goran Strbac

BMJ Open ◽  
2012 ◽  
Vol 2 (1) ◽  
pp. e000332 ◽  
Author(s):  
Helen Dakin ◽  
Alastair Gray ◽  
Ray Fitzpatrick ◽  
Graeme MacLennan ◽  
David Murray ◽  
...  

2004 ◽  
Vol 65 (3) ◽  
pp. 273-288
Author(s):  
Dimosthenis Anagnostopoulos ◽  
Vassilis Dalakas ◽  
Mara Nikolaidou

2018 ◽  
Author(s):  
Daniel Neumann ◽  
René Friedland ◽  
Matthias Karl ◽  
Hagen Radtke ◽  
Volker Matthias ◽  
...  

Abstract. Atmospheric deposition accounts for up to a third of the nitrogen input into the Baltic Sea and contributes to eutrophication. It is useful to use three-dimensional biogeochemical models to evaluate the contribution of atmospheric nitrogen deposition to eutrophication because bioavailable nitrogen impacts eutrophication differently depending on time and place of input – e.g. nitrogen is processed and denitrified faster in flat coastal regions. The western Baltic Sea, which is stressed by high nutrient loads, is characterized by many small islands and a wrinkled coast line. In regions with this type of coastal features, the grid resolution of atmospheric chemistry transport models (CTMs) has a strong impact on the modeled nitrogen deposition. The aim of this study was to evaluate the benefit of finer spatially resolved deposition data as input for simulations with the ecosystem model ERGOM. This study also focused on the shipping contribution to the marine nitrogen budget via deposition of shipping-emitted nitrogen oxide (NOx). Differences in the modeled dissolved inorganic nitrogen (DIN) caused by refined nitrogen deposition were identified in some coastal sections and between the Danish islands. Patches of enhanced DIN concentrations were found distant to the coast in model runs forced by the finer resolved data. These were caused by better resolved precipitation events. The differences between fine and coarse resolution deposition of the same CTM were low compared to the difference to EMEP deposition, which was a third comparison data set. The shipping sector contributed a maximum of 10 % and on average less than 5 % to DIN. In summary, particularly small scale ecosystem model studies in bights are expected to benefit from spatially higher resolved nitrogen deposition data. The shipping sector is a relevant contributor to the marine nitrogen deposition but its contribution to the marine DIN pool is rather low.


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