Automated segmentation of microtomography imaging of Egyptian mummies

Propagation Phase Contrast Synchrotron Microtomography (PPC-SRμCT) is the gold standard for non-invasive and non-destructive access to internal structures of archaeological remains. In this analysis, the virtual specimen needs to be segmented to separate different parts or materials, a process that normally requires considerable human effort. In the Automated SEgmentation of Microtomography Imaging (ASEMI) project, we developed a tool to automatically segment these volumetric images, using manually segmented samples to tune and train a machine learning model. For a set of four specimens of ancient Egyptian animal mummies we achieve an overall accuracy of 94–98% when compared with manually segmented slices, approaching the results of off-the-shelf commercial software using deep learning (97–99%) at much lower complexity. A qualitative analysis of the segmented output shows that our results are close in terms of usability to those from deep learning, justifying the use of these techniques.peer-reviewe

Methodology and sample holder for analyses under quarantine of Martian Return Samples

40th Lunar and Planetary Science Conferance (2009)International audienc

silx-kit/hdf5plugin: 4.2.0: 12/09/2023

What's Changed Updated libraries: c-blosc (v1.12.5), c-blosc2 (v2.10.2) (PR #273) Updated filter H5Z-ZFP (v1.1.1) (PR #273) Updated build dependencies: Added wheel>=0.34.0 requirement (PR #272) Removed distutils usage (PR #276) Updated documentation (PR #271, #278) Fixed Continuous integration (PR #275) Debian packaging (PR #277): Added Debian 12 Removed Debian 10 Full Changelog: https://github.com/silx-kit/hdf5plugin/compare/v4.1.3...v4.2.

silx-kit/silx: v0.5.0: Release 0.5.0 - 2017/05/12

Adds OpenGL backend to 1D and 2D graphics Adds Object Oriented plot API with Curve, Histogram, Image, ImageRgba and Scatter items. Implements generic launcher (silx view) NXdataViewer. Module providing NeXus NXdata support Math/OpenCL. Implementation of median filter. Plot. Implementation of ColorBar widget. Plot. Visualization of complex data type. Plot. Implementation of Scatter Plot Item supporting colormaps and masks. Plot. StackView now supports axes calibration. I/O. Supports SPEC files not having #F or #S as first line character. I/O. Correctly exposes UB matrix when found in file. ROIs. Simplification of API: setRois, getRois, calculateRois. ROIs. Correction of calculation bug when the X-axis values were not ordered. Sift. Moves package from silx.image to silx.opencl

silx-kit/hdf5plugin: 4.3.0: 09/11/2023

<h2>What's Changed</h2> <ul> <li><p>Updated <strong>hdf5-blosc2</strong> to support b2nd (PR #282)</p> </li> <li><p>Updated <strong>c-blosc2</strong> (v2.11.1) and enabled its AVX512 support (PR #283)</p> </li> <li><p>Updated continuous integration to test with Python 3.12 (PR #281)</p> </li> <li><p>Added European HDF Users Group (HUG) Meeting 2023 presentation and companion material (PR #280)</p> </li> <li><p>Updated documentation (PR #279, #284)</p> </li> </ul> <h2>New Contributors</h2> <ul> <li>@ivilata made their first contribution in https://github.com/silx-kit/hdf5plugin/pull/282</li> </ul> <p><strong>Full Changelog</strong>: https://github.com/silx-kit/hdf5plugin/compare/v4.2.0...v4.3.0</p&gt

silx-kit/fabio: FabIO-2023.10

<ul> <li>New tutorial on the creation of multiframe Tiff</li> <li>Fix regression related to the depreciation of fopen on MSVC compilers (validation code)</li> <li>Clean-up packaging</li> <li>Support Python 3.7-3.12</li> </ul&gt

Prognostic Value of Malondialdehyde Serum Levels in Severe Sepsis: A Multicenter Study

OBJECTIVE: The oxidant/antioxidant state in septic patients has only been studied in small series. We wished to determine whether malondialdehyde (MDA) serum levels were associated with severity and 30-day mortality in a large series of patients with sepsis. METHODS: We performed an observational, prospective, multicenter study in six Spanish Intensive Care Units. Serum levels of MDA were measured in a total of 228 patients (145 survivors and 83 non-survivors) with severe sepsis and 100 healthy controls. RESULTS: Serum levels of MDA were higher in severe septic patients than in healthy controls. Non-surviving septic patients had higher MDA values than survivors. MDA serum levels were associated with severity markers (lactic acid, SOFA, APACHE-II) and coagulation indices. Regression analysis showed that MDA serum levels were associated with 30-day survival (Hazard ratio = 1.05; 95% confidence interval = 1.009–1.091; p = 0.016). Receiver operating characteristic analysis showed that the area under curve of MDA serum levels to predict 30-day survival was 0.62 (95% CI = 0.56–0.69; P = 0.002). The risk of death in septic patients with MDA serum levels above 4.11 nmol/mL was higher than in patients with lower values (Hazard Ratio = 2.43; 95% CI = 1.49–3.94; p<0.001). CONCLUSIONS: The novel findings of our study on severe septic patients, to our knowledge the largest series providing data on the oxidative state, are that elevated MDA serum levels probably represent an unbalanced oxidant state and are related with poor prognosis in patients with severe sepsis