Délégation Ile-de-France Ouest et Nord

For a whole week, amidst the fabulous scenery of the Dolomites of Sexten (Italy), we enjoyed stimulating presentations and lively discussions on observations and theoretical interpretations of the abundances of CNOPS elements. We believe this was a very fruitful week, and in this collection of contributions, we have sought to capture the key topics covered during the workshop.

There are three folders for our code: Code expe N1, Code expe N2 and Code expe A. Each folder contains the code to generate all our results and the databases they use.

This dataset contains results from the comparison of optical clocks in Europe carried out in March 2023 using the European optical fiber network. The results are reported in this arXiv. The involved optical clocks are: LNE-OP Hg optical lattice clock SYRTE-Hg, PTB Yb+(E2) ion clock PTB-Yb1E2, NPL Yb+(E3) ion clock NPL-E3Yb+3, PTB Yb+(E3) ion clock PTB-Yb1E3, INRIM Yb optical lattice clock IT-Yb1, NPL Sr optical lattice clock NPL-Sr1, PTB Sr optical lattice clock PTB-Sr3. Data is organized in folders, one for each comparison. Data is reported as fractional frequency ratios on a 1-s grid. The data follows the optical link data format developed for the EMPIR Projects OFTEN and ROCIT, and the European Partnership on Metrology Project TOCK. Timetags are reported in modified Julian date (MJD). A validity flag is given where 0 = invalid, valid otherwise. Each folder includes a yaml file with metadata required for generalized data processing. A Python package that can be used for data processing can be found on github. Inconsistencies have been observed in parts of the data; users should refer to the arXiv for details and interpretation.

bAIes and coil ensembles from "Atomic resolution ensembles of intrinsically disordered proteins with Alphafold".

In this contribution we investigate the CNO abundances in five apparently young evolved stars, with the aim of discriminating between truly young stars and stars that were rejuvenated by accreting mass from another star. Stars that have accreted mass are expected to show low C and O and a very low [C/O] ratio, as displayed by some stars in the Globular Cluster 47 Tuc, that are believed to have undergone mass-transfer. In our sample the low [C/O] ratios observed appear to be compatible with their evolutionary status. There is thus no indication for these stars having accreted mass.

In this contribution we investigate the CNO abundances in five apparently young evolved stars, with the aim of discriminating between truly young stars and stars that were rejuvenated by accreting mass from another star. Stars that have accreted mass are expected to show low C and O and a very low [C/O] ratio, as displayed by some stars in the Globular Cluster 47 Tuc, that are believed to have undergone mass-transfer. In our sample the low [C/O] ratios observed appear to be compatible with their evolutionary status. There is thus no indication for these stars having accreted mass.

For a whole week, amidst the fabulous scenery of the Dolomites of Sexten (Italy), we enjoyed stimulating presentations and lively discussions on observations and theoretical interpretations of the abundances of CNOPS elements. We believe this was a very fruitful week, and in this collection of contributions, we have sought to capture the key topics covered during the workshop.

Quasi-Thermal Noise (QTN) spectroscopy is a reliable diagnostic routinely used for measuring electron density and temperature in space plasmas. The observed spectrum depends on both antenna geometry and plasma kinetic properties. Parker Solar Probe (PSP), launched in 2018, is equipped with an antenna system consisting of two linear dipoles with a significant gap between the antenna arms. Such a configuration, not utilized on previous missions, cannot be completely described by current models of the antenna response function. In this work, we calculate the current distribution and the corresponding response function for the PSP antenna geometry, and use these results to generate synthetic QTN spectra. Applying this model to the Encounter 7 observations from PSP provides accurate estimations of electron density and temperature, which are in very good agreement with particle analyzer measurements.

This repository provides the raw data necessary to reproduce the analyses presented in the paper "Shining Light on Dark Matter: Advancing Functional Analysis of Obsidian Tools with Confocal Scanning Microscopy" by Pichon et al. Contents of the Repository: 1. PLU Files: Data collected using a Sensofar Plu Neox white-light scanning confocal microscope on experimental obsidian tools employed in various cutting activities, including: Butchery De-skinning fresh hides from grease and meaty tissues Cutting tanned leather Harvesting domestic ripe cereals Harvesting semi-green wild cereals Sawing wet limestone Data collected on tools used for scraping activities, such as: Dry hide Dry antler Soaked antler Fresh bone Softwood Fresh reeds Wet limestone Data collected on non-used areas on obsidian raw material included in the experimental program. 2. CSV Files: Cutting and Scraping Tools: Raw 3D surface measurement data from the experimental obsidian tools. Non-used obsidian: Raw 3D surface measurement data from non-used obsidian samples.

bAIes and coil ensembles from "Atomic resolution ensembles of intrinsically disordered proteins with Alphafold".

Bacteriophages, or phages, are highly abundant and diverse genomic entities that play an important role in microbial ecology, evolution, and horizontal gene transfer. While the dynamic changes in genome organization in cellular organisms have been well described, the 3D folding of phage genomes during the infection of their host is extremely limited. Understanding how phage genomes fold, invade and rearrange the genome of their host to functionally organize the optimal expression of their genes remains unknown. Here, we explore the spatial dynamics of the virulent double-stranded DNA phage PAK_P3 during infection of its host Pseudomonas aeruginosa and reveal how its genome rapidly decondenses to adopt a specific 3D organization that reflects its transcriptional program. Concomitantly, the host genome decondenses as gene expression wanes and transcription induced domains vanish. We also uncover specific and discrete bridging of the host and the phage genomes, showing how the phage genome exploits the spatial genome architecture of its host to succeed in its infection cycle. Our data highlights an unprecedented level of genome folding and gene expression regulation during a viral infection.

While the dynamic changes in genome organization in cellular organisms have been well described, the 3D folding of phage genomes during the infection of their host is extremely limited. Understanding how phage genomes fold, invade and rearrange the genome of their host to functionally organize the optimal expression of their genes remains unknown. Here, we explore the spatial dynamics of the virulent double-stranded DNA phage PAK_P3 during infection of its host Pseudomonas aeruginosa and reveal how its genome rapidly decondenses to adopt a specific 3D organization that reflects its transcriptional program. Concomitantly, the host genome decondenses as gene expression wanes and transcription induced domains vanish. We also uncover specific contacts of the phage genome with host chromosome, showing how the phage genome exploits the spatial genome architecture of its host to succeed in its infection cycle. Our data highlights an unprecedented level of genome folding and gene expression regulation during a viral infection.

This dataset contains results from the comparison of optical clocks in Europe carried out in March 2023 using the European optical fiber network. The results are reported in this arXiv. The involved optical clocks are: LNE-OP Hg optical lattice clock SYRTE-Hg, PTB Yb+(E2) ion clock PTB-Yb1E2, NPL Yb+(E3) ion clock NPL-E3Yb+3, PTB Yb+(E3) ion clock PTB-Yb1E3, INRIM Yb optical lattice clock IT-Yb1, NPL Sr optical lattice clock NPL-Sr1, PTB Sr optical lattice clock PTB-Sr3. Data is organized in folders, one for each comparison. Data is reported as fractional frequency ratios on a 1-s grid. The data follows the optical link data format developed for the EMPIR Projects OFTEN and ROCIT, and the European Partnership on Metrology Project TOCK. Timetags are reported in modified Julian date (MJD). A validity flag is given where 0 = invalid, valid otherwise. Each folder includes a yaml file with metadata required for generalized data processing. A Python package that can be used for data processing can be found on github. Inconsistencies have been observed in parts of the data; users should refer to the arXiv for details and interpretation.

While the dynamic changes in genome organization in cellular organisms have been well described, the 3D folding of phage genomes during the infection of their host is extremely limited. Understanding how phage genomes fold, invade and rearrange the genome of their host to functionally organize the optimal expression of their genes remains unknown. Here, we explore the spatial dynamics of the virulent double-stranded DNA phage PAK_P3 during infection of its host Pseudomonas aeruginosa and reveal how its genome rapidly decondenses to adopt a specific 3D organization that reflects its transcriptional program. Concomitantly, the host genome decondenses as gene expression wanes and transcription induced domains vanish. We also uncover specific contacts of the phage genome with host chromosome, showing how the phage genome exploits the spatial genome architecture of its host to succeed in its infection cycle. Our data highlights an unprecedented level of genome folding and gene expression regulation during a viral infection.