624 research outputs found

    Sustainable regeneration of port cities

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    Despite overall growth in the maritime sector, many European port cities are challenged by the migration of port-related activities from inner-city areas to other locations. The relocation of these economic activities results in the emergence of brownfield sites in strategic urban locations. Reusing these sites in a sustainable manner can contribute to preventing new land take and the regeneration of port cities. The city of Brest (France) is a good example of a port city that rejuvenated its inner-city area in a sustainable way

    Towards embodied carbon benchmarks for buildings in Europe:#4 Bridging the performance gap: A Performance framework

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    Embodied Carbon in the Building Sector A new study, 'Towards embodied carbon benchmarks for buildings in Europe', by Ramboll, in collaboration with leading researchers from Aalborg University Build and KU Leuven sets out a framework for benchmarking and limiting the embodied carbon of new buildings. The study identifies solutions to measure embodied carbon emissions, define carbon budgets and targets. Importantly it includes recommendations for a baseline of current embodied carbon levels in new buildings, as well as considerations of the available carbon budget for these emissions. This will form the basis of a performance system in the shape of benchmarks for the reduction of embodied carbon. Download the reports #1 Facing the data challenge (https://doi.org/10.5281/zenodo.6120522) #2 Setting the baseline. A bottom-up approach (https://doi.org/10.5281/zenodo.5895051) #3 Defining budget-based targets. A top-down approach (https://doi.org/10.5281/zenodo.6120882) #4 Bridging the embodied carbon performance gap (https://doi.org/10.5281/zenodo.6120874) Summary report - The important takeaways in short (https://doi.org/10.5281/zenodo.6397514) Learn more To learn more about the study and download the reports from the study, go to our Embodied Carbon in the Building Sector website (https://c.ramboll.com/lets-reduce-embodied-carbon

    Towards embodied carbon benchmarks for buildings in Europe:#3 Defining budget-based targets: A top-down approach

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    Embodied Carbon in the Building Sector A new study, 'Towards embodied carbon benchmarks for buildings in Europe', by Ramboll, in collaboration with leading researchers from Aalborg University Build and KU Leuven sets out a framework for benchmarking and limiting the embodied carbon of new buildings. The study identifies solutions to measure embodied carbon emissions, define carbon budgets and targets. Importantly it includes recommendations for a baseline of current embodied carbon levels in new buildings, as well as considerations of the available carbon budget for these emissions. This will form the basis of a performance system in the shape of benchmarks for the reduction of embodied carbon. Download the reports #1 Facing the data challenge (https://doi.org/10.5281/zenodo.6120522) #2 Setting the baseline. A bottom-up approach (https://doi.org/10.5281/zenodo.5895051) #3 Defining budget-based targets. A top-down approach (https://doi.org/10.5281/zenodo.6120882) #4 Bridging the embodied carbon performance gap (https://doi.org/10.5281/zenodo.6120874) Summary report - The important takeaways in short (https://doi.org/10.5281/zenodo.6397514) Learn more To learn more about the study and download the reports from the study, go to our Embodied Carbon in the Building Sector website (https://c.ramboll.com/lets-reduce-embodied-carbon) Change notes Version 1.1 The originally published version contained an error in "Table 1: Comparison of whole-life embodied emissions (in kgCO2eq/m2) according to empirical baseline and budget-based targets". Values have been corrected in v1.1

    Towards embodied carbon benchmarks for buildings in Europe:#1 Facing the data challenge

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    Embodied Carbon in the Building Sector A new study, 'Towards embodied carbon benchmarks for buildings in Europe', by Ramboll, in collaboration with leading researchers from Aalborg University Build and KU Leuven sets out a framework for benchmarking and limiting the embodied carbon of new buildings. The study identifies solutions to measure embodied carbon emissions, define carbon budgets and targets. Importantly it includes recommendations for a baseline of current embodied carbon levels in new buildings, as well as considerations of the available carbon budget for these emissions. This will form the basis of a performance system in the shape of benchmarks for the reduction of embodied carbon. Download the reports #1 Facing the data challenge (https://doi.org/10.5281/zenodo.6120522) #2 Setting the baseline. A bottom-up approach (https://doi.org/10.5281/zenodo.5895051) #3 Defining budget-based targets. A top-down approach (https://doi.org/10.5281/zenodo.6120882) #4 Bridging the embodied carbon performance gap (https://doi.org/10.5281/zenodo.6120874) Summary report - The important takeaways in short (https://doi.org/10.5281/zenodo.6397514) Learn more To learn more about the study and download the reports from the study, go to our Embodied Carbon in the Building Sector website (https://c.ramboll.com/lets-reduce-embodied-carbon

    Measurement of the cosmic ray spectrum above 4×10184{\times}10^{18} eV using inclined events detected with the Pierre Auger Observatory

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    A measurement of the cosmic-ray spectrum for energies exceeding 4×10184{\times}10^{18} eV is presented, which is based on the analysis of showers with zenith angles greater than 6060^{\circ} detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above 5.3×10185.3{\times}10^{18} eV, the "ankle", the flux can be described by a power law EγE^{-\gamma} with index γ=2.70±0.02(stat)±0.1(sys)\gamma=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)} followed by a smooth suppression region. For the energy (EsE_\text{s}) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find Es=(5.12±0.25(stat)1.2+1.0(sys))×1019E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19} eV.Comment: Replaced with published version. Added journal reference and DO

    Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

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    The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO

    Spatial Organization and Molecular Correlation of Tumor-Infiltrating Lymphocytes Using Deep Learning on Pathology Images

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    Beyond sample curation and basic pathologic characterization, the digitized H&E-stained images of TCGA samples remain underutilized. To highlight this resource, we present mappings of tumorinfiltrating lymphocytes (TILs) based on H&E images from 13 TCGA tumor types. These TIL maps are derived through computational staining using a convolutional neural network trained to classify patches of images. Affinity propagation revealed local spatial structure in TIL patterns and correlation with overall survival. TIL map structural patterns were grouped using standard histopathological parameters. These patterns are enriched in particular T cell subpopulations derived from molecular measures. TIL densities and spatial structure were differentially enriched among tumor types, immune subtypes, and tumor molecular subtypes, implying that spatial infiltrate state could reflect particular tumor cell aberration states. Obtaining spatial lymphocytic patterns linked to the rich genomic characterization of TCGA samples demonstrates one use for the TCGA image archives with insights into the tumor-immune microenvironment

    Pan-cancer Alterations of the MYC Oncogene and Its Proximal Network across the Cancer Genome Atlas

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    Although theMYConcogene has been implicated incancer, a systematic assessment of alterations ofMYC, related transcription factors, and co-regulatoryproteins, forming the proximal MYC network (PMN),across human cancers is lacking. Using computa-tional approaches, we define genomic and proteo-mic features associated with MYC and the PMNacross the 33 cancers of The Cancer Genome Atlas.Pan-cancer, 28% of all samples had at least one ofthe MYC paralogs amplified. In contrast, the MYCantagonists MGA and MNT were the most frequentlymutated or deleted members, proposing a roleas tumor suppressors.MYCalterations were mutu-ally exclusive withPIK3CA,PTEN,APC,orBRAFalterations, suggesting that MYC is a distinct onco-genic driver. Expression analysis revealed MYC-associated pathways in tumor subtypes, such asimmune response and growth factor signaling; chro-matin, translation, and DNA replication/repair wereconserved pan-cancer. This analysis reveals insightsinto MYC biology and is a reference for biomarkersand therapeutics for cancers with alterations ofMYC or the PMN
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