562 research outputs found
Mathieu Jaboulay (1860-1913) and His Innovations in Vascular and General Surgery
No full textMathieu Jaboulay (1860-1913) was an inventor in vascular and general surgery. He fabricated many new surgical techniques and instruments such as Jaboulay method for vascular sutures, Jaboulay anastomotic button, and Jaboulay amputation, known also as hemipelvectomy. In addition, he was a pioneer in heterologous transplantation and sympathectomy. He found death suddenly in a terrible train crash. He was a reputable Professor of Surgery at Lyon Faculty of Medicine with prestigious students in vascular surgery. © The Author(s) 2019
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HAGE, a novel cancer/testis antigen with strong potential as a target for immunotherapy against cancers
No full textSince van der Bruggen et al. (1991) first identified specific human tumour antigens of the MAGE family, numerous potential immunotherapeutic targets have been discovered, often belonging to the so-called cancer/testis (CT) gene family. In a search for novel epitopes from potential tumour target antigens, HAGE, a CT antigen, has been studied. It was first identified in a sarcoma and has since been reported in several carcinomas and leukaemias at the mRNA level only. This study proposed to investigate HAGE as a potential target for immunotherapy in a murine tumour model. HAGE mRNA was found to be expressed in a small proportion of carcinomas, some melanomas and in a strong proportion of chronic myeloid leukaemias as compared to normal tissues, which do not express HAGE with the exception of testis. HAGE protein levels were also confirmed on tissue sections and in cell lines in order to rule out any post-transcriptional modifications. Furthermore, HAGE has been previously described as member of the DEAD-box family of ATP-dependent RNA helicases but very little is known about its actual function. RNA helicases are involved in various steps of RNA metabolism and their over-expression has often been linked with tumorogenesis. Using a combination of silencing and transfection experiments, HAGE was proven to be critical for tumour cell proliferation
Mechanics of inhomogeneous turbulence and interfacial layers
No full textThe mechanics of inhomogeneous turbulence in and adjacent to interfacial layers bounding turbulent and non-turbulent regions are analysed. Different mechanisms are identified according to the straining by the turbulent eddies in relation to the strength of the mean shear adjacent to, or across, the interfacial layer. How the turbulence is initiated and the topology of the region of turbulence are also significant factors. Specifically the cases of a layer of turbulence bounded on one, or two, sides by a uniform and/or shearing flow, and a circular region of a rotating turbulent vortex are considered and discussed.
The entrainment processes at fluctuating interfaces occur both at the outer edges of turbulent shear layers, with and without free-stream turbulence (e.g. jets, wakes and boundary layers), at internal boundaries such as those at the outside of the non-turbulent core of swirling flows (e.g. the ‘eye-wall’ of a hurricane) or at the top of the viscous sublayer and roughness elements in turbulent boundary layers. Conditionally sampled data enables these concepts to be tested. These concepts lead to physically based estimates for critical modelling parameters such as eddy viscosity near interfaces, entrainment rates, maximum velocity and displacement heights
Synthetic data (Part 1) for "HOISDF: Constraining 3D Hand-Object Pose Estimation with Global Signed Distance Fields"
No full textHere we provide the data of our article "HOISDF: Constraining 3D Hand-Object Pose Estimation with Global Signed Distance Fields". It contains the preprocessed SDF samples. Meanwhile, we also include rendered data for HO3Dv2 here.
The overall structure of the data is:
├── render_sdf_ho3d.zip - Contains the processed SDF files for HO3Dv2 rendered images.
├── train_ho3d.zip - Contains the processed SDF files for HO3Dv2 training set.
├── full_test_dexycb.zip - Contains the processed SDF files for DexYCB full test set.
The code to reproduce the results is available at: https://github.com/amathislab/HOISDF
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If you find our code, weights, predictions or ideas useful, please cite:
@inproceedings{qi2024hoisdf, title={HOISDF: Constraining 3D Hand-Object Pose Estimation with Global Signed Distance Fields}, author={Qi, Haozhe and Zhao, Chen and Salzmann, Mathieu and Mathis, Alexander}, booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition}, pages={10392--10402}, year={2024}}UPAMATHISLCAVSDSC-G
Symmetric group actions on the cohomology of configurations in R^d
No full textIn this paper we deal with the action of the symmetric group on the cohomology of the conguration space Cn(d) of n points in Rd. This topic has been studied by several authors and it is well-known that for d even H* (Cn(d);C) ≌ 2IndSnS21 while, for d odd, H* (Cn(d);C) ≌ CSn. On the cohomology algebra H* (Cn(d);C) there is, in addition to the natural Sn-action, an extended action of Sn+1; this was shown for the case when d is even by Mathieu, Robinson and Whitehouse and the second author using three dierent methods. For the case when d is odd it was shown by Mathieu (anyway we will give an elementary algebraic construction of the extended action for this case). The purpose of this article is to present some results that can be obtained, in an elementary way, exploiting the interplay between the extended action and the standard action. Among these we will recall a quick proof for the formula cited above for the case when d is even and show how to extend this proof to the case when d is odd. We will also show how to locate among the homogeneous components of the graded algebra H* (Cn(d);C) the copies of the standard, sign and standard tensor sign representations and we will give explicit formulas for both the extended and the canonical actions on the low-degree cohomology modules
Evolution of asynchronous Cellular Automata: finding the good compromise
No full textOne of the prominent features of the Cellular Automata (CA) model is its synchronous mode of operation, meaning that all cells are updated simultaneously. But this feature is far from being realistic from a biological point of view as well as from a computational point of view. Past research has mainly concentrated on studying Asynchronous CAs in themselves, trying to determine what behaviors were an "artifact" of the global clock. In this paper, I propose to evolve Asynchronous CAs that compute successfully one of the well-studied task for regular CAs: The synchronization task. As I will show evolved solutions are both unexpected and best for certain criteria than a perfect solution. The model used is fully asynchronous. Each cell has the same probability pf of not updating its state at each step
Low attenuation microwave waveguides
No full textPhDAn investigation of the dispersion and
attenuation characteristics of cylindrical structures
supporting guided electromagnetic waves with low
attenuation is described. The object of the investigation
is to understand how the cross-sectional shape and the
nature of the boundary conditions affects the propagation
characteristics. Attention is directed towards structures
supporting the least number of propagating modes under the
conditions which yield low attenuation over a reasonable
bandwidth. Elliptical waveguides with both smooth-walls
and corrugated walls are studied in detail. This reveals
errors in previous-theories which are corrected. Some
aspects of corrugated rectangular and circular waveguides
are considered. Potential low attenuation waveguides such
as the dielectric lined and dielectric waveguides are
evaluated
The Sheffield Wargames Corpus.
Get PDFRecognition of speech in natural environments is a challenging task, even more so if this involves conversations between several speakers. Work on meeting recognition has addressed some of the significant challenges, mostly targeting formal, business style meetings where people are mostly in a static position in a room. Only limited data is available that contains high quality near and far field data from real interactions between participants. In this paper we present a new corpus for research on speech recognition, speaker tracking and diarisation, based on recordings of native speakers of English playing a table-top wargame. The Sheffield Wargames Corpus comprises 7 hours of data from 10 recording sessions, obtained from 96 microphones, 3 video cameras and, most importantly, 3D location data provided by a sensor tracking system. The corpus represents a unique resource, that provides for the first time location tracks (1.3Hz) of speakers that are constantly moving and talking. The corpus is available for research purposes, and includes annotated development and evaluation test sets. Baseline results for close-talking and far field sets are included in this paper
Review Article - Studying Religion
No full textBROWN, Scott G. 2008. A Guide to Writing Academic Essays in Religious Studies. London: Contin-uum. xii + 107 pp. £9.99. (pbk). ISBN: 978-0-8264-9888-5. CHRYSSIDES, G. D., and R. Geaves. 2007. The Study of Religion: An Introduction to Key Ideas and Methods. London: Continuum. x + 429 pp. £75.00 (hbk); £16.99 (pbk). ISBN: 0-8264-6448 (hbk); 978-0-8264-6449-1 (pbk). CORRYWRIGHT, D., and P. Morgan. 2006. Get Set for Religious Studies. Edinburgh: Edinburgh University Press. 160 pp. £12.99. (pbk). ISBN: 978-07486-2-0326. COURVILLE, Mathieu E., ed. 2007. The Next Step in Studying Religion: A Graduate’s Guide. London: Continuum. ix + 238 pp. £19.99. (pbk). ISBN: 978-0-8264-9843-4. HERLING, Bradley L. 2007. A Beginner’s Guide to the Study of Religion. London: Continuum. xii + 135 pp. £7.99. (pbk). ISBN: 978-0-8264-9531-0. MCCUTCHEON, R. T. 2007. Studying Religion. London: Equinox. xiv + 206 pp. £65.00. (pbk). ISBN: 978-1-84552-012-9.</jats:p
Simulating cement microstructural evolution during calcium leaching
No full textCalcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this paper a lattice Boltzmann based pore-scale reactive transport approach in the context of simulating the evolution of microstructure of a hardened cement paste during calcium leaching is presented. This approach is based on fundamental principles of chemical thermodynamics and mass transport. The example presented illustrates influence of location of mineral grains and surface area on overall dissolution rate and pore structure evolution.Structural EngineeringCivil Engineering and Geoscience
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